TL;DR: This study employs single-cell transcriptomics to analyze cancer-associated fibroblasts (CAFs) in three skin cancers, identifying nine distinct subgroups, including a novel C0 subtype in basal cell carcinoma with invasive capabilities.
Abstract: Background: Cancer-Associated Fibroblasts (CAFs) constitute a heterogeneous group of cells critical for the remodeling of the tumor microenvironment (TME). Given their significant impact on tumor progression, particularly in skin cancers, a deeper understanding of their characteristics and functions is essential. Methods: This study employed a single-cell transcriptomic analysis to explore the diversity of CAFs within three major types of skin cancer: basal cell carcinoma, melanoma, and head and neck squamous cell carcinoma. We applied analytical techniques, including Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), Gene Set Enrichment Analysis (GSEA), pseudotime tracking, metabolic profiling, and stemness assessment to delineate and define the functional attributes of identified CAF subgroups. Results: Our analysis successfully delineated nine distinct CAF subgroups across the studied tumor types. Of particular interest, we identified a novel CAF subtype, designated as C0, exclusive to basal cell carcinoma. This subtype exhibits phenotypic traits associated with invasive and destructive capabilities, significantly correlating with the progression of basal cell carcinoma. The identification of this subgroup provides new insights into the role of CAFs in cancer biology and opens avenues for targeted therapeutic strategies. Conclusion: A pan-cancer analysis was performed on three cancers, BCC, MA, and HNSCC, focusing on tumor fibroblasts in TME. Unsupervised clustering categorized CAF into nine subpopulations, among which the C0 subpopulation had a strong correspondence with BCC-CAF and an invasive- destructive-related phenotype.
TL;DR: This study identifies KIF5B as a novel prognostic biomarker for Hepatocellular Carcinoma (HCC), associated with poor clinical outcomes, and reveals its role in activating the AKT/mTOR pathway and reprogramming triglyceride metabolism in HCC development.
Abstract: Background: Metabolic disorders are significant risk factors for liver cancer, particularly Hepatocellular Carcinoma (HCC). However, the molecular genetic basis of metabolic reprogramming in the liver remains largely uncertain. Objective: This study aimed to investigate some novel prognostic biomarkers in HCC by using proteogenomic and transcriptomic analysis and explore the potential role of specific prognostic genes in HCC. Methods: Here, we have presented a proteogenomic analysis of 10 pairs of HCC. Protein co-expression and pathway analysis were performed to investigate the biological characteristics of HCC. Protein and mRNA expression profiles of multi-cohorts were integrated to detect novel prognostic protein markers of HCC. The carcinogenic roles of candidate prognostic markers were further evaluated by MTS assay, colony formation, monolayer wound healing assay, and xenograft models. Results: A total of 2086 proteins with significantly different expressions were detected in HCC. Pathways related to oncogenic signaling and insulin-related metabolism have been found to be dysregulated and differentially regulated in HCC. We have identified the novel prognostic biomarkers, KIF5B, involved in liver metabolic reprogramming. The biomarkers were identified using multivariable COX regression analysis from two independent proteomic datasets (Fudan Cohort and our recruited cohort) and the TCGA mRNA database. Both the protein and mRNA up-regulation of KIF5B have been found to be associated with a poor clinical outcome in HCC. Insulin activated the protein expression of KIF5B in HCC. Knocking out KIF5B expression by sgRNA decreased the protein expression of FASN and SCD1 and the intracellular triglyceride concentration. Silencing KIF5B suppressed HCC cell proliferation and colony formation in vitro, as well as HCC growth in xenograft models. Conclusion: Our findings have suggested KIF5B protein to function as a novel prognostic biomarker in HCC. KIF5B expression has been found to activate the AKT/mTOR pathway and reprogram triglyceride metabolism, leading to HCC development. Targeting KIF5B may be an effective strategy in the clinical treatment of HCC.
TL;DR: According to the current study, achieving high transduction efficiency and high levels of clotting factor expression in human hepatocytes is still insufficient, and it is anticipated that a personalized therapeutic approach will be developed to cure haemophilia effectively.
Abstract: Gene therapy for hemophilia has advanced tremendously after thirty years of continual study and development. Advancements in medical science have facilitated attaining normal levels of Factor VIII (FVIII) or Factor IX (FIX) in individuals with haemophilia, thereby offering the potential for their complete recovery. Despite the notable advancements in various countries, there is significant scope for further enhancement in haemophilia gene therapy. Adeno-associated virus (AAV) currently serves as the primary vehicle for gene therapy in clinical trials targeting haemophilia. Subsequent investigations will prioritize enhancing viral capsid structures, transgene compositions, and promoters to achieve heightened transduction efficacy, diminished immunogenicity, and more predictable therapeutic results. The present study indicates that whereas animal models have transduction efficiency that is over 100% high, human hepatocytes are unable to express clotting factors and transduction efficiency to comparable levels. According to the current study, achieving high transduction efficiency and high levels of clotting factor expression in human hepatocytes is still insufficient. It is also crucial to reduce the risk of cellular stress caused by protein overload. Despite encountering various hurdles, the field of haemophilia gene therapy holds promise for the future. As technology continues to advance and mature, it is anticipated that a personalized therapeutic approach will be developed to cure haemophilia effectively.
TL;DR: A novel segmentation method for CT images using Resio-Inception U-Net and Deep Cluster Recognition techniques achieves high precision and stability in organ task segmentation, outperforming current techniques.
Abstract: Segmentation of medical images plays a key role in the correct identification and management of different diseases. In this study, we present a new segmentation method that meets the difficulties posed by sophisticated organ shapes in computed tomography (CT) images, particularly targeting lung, breast, and gastric cancers. Our suggested methods, Resio-Inception U-Net and Deep Cluster Recognition (RIUDCR), use a Residual Inception Architecture, which combines the power of residual connections and inception blocks to achieve cutting-edge segmentation performance while reducing the risk of overfitting. We present mathematical equations and functions that describe the design, including the encoding and decoding steps within the UC-Net system. Furthermore, we provide strong testing results that show the effectiveness of our method. Through thorough testing on varied datasets, our method regularly beats current techniques, achieving amazing precision and stability in organ task segmentation. These results show the promise of our residual inception architecture in better medical picture analysis. In summary, our research not only shows a state-of-the-art segment methodology but also reinforces its usefulness through thorough testing. The inclusion of residual inception architecture in medical picture segmentation offers good possibilities for improving the identification and management of disease planning.
TL;DR: It is revealed that AEG-1 silencing might alter EXT-1 expression indirectly through PTCH-1, influencing cell-ECM interactions, and decreasing dysplastic changes, proliferation and invasion.
Abstract:
Astrocyte elevated gene-1 (AEG-1) is overexpressed in various malignancies. Exostosin-1 (EXT-1), a tumor suppressor, is an intermediate for malignant tumors. Understanding the mechanism behind the interaction between AEG-1 and EXT-1 may provide insights
into colon cancer metastasis.
AOM/DSS was used to induce tumor in BALB/c mice. Using an in vivo-jetPEI transfection reagent, transient transfection of AEG-1 and EXT-1 siRNAs were achieved. Histological scoring, immunohistochemical staining, and gene expression studies were performed from excised tissues. Data from the Cancer Genomic Atlas and GEO databases were obtained to identify the expression status of AEG-1 and itsassociation with the survival.
In BALB/c mice, the AOM+DSS treated mice developed necrotic, inflammatory and dysplastic changes in the colon with definite clinical symptoms such as loss of goblet cells, colon
shortening, and collagen deposition. Administration of AEG-1 siRNA resulted in a substantial decrease in the disease activity index. Mice treated with EXT-1 siRNA showed diffusely reduced goblet cells. In vivo investigations revealed that PTCH-1 activity was influenced by upstream gene
AEG-1, which in turn may affect EXT-1 activity. Data from The Cancer Genomic Atlas and GEO
databases confirmed the upregulation of AEG-1 and downregulation of EXT-1 in cancer patients.
This study revealed that AEG-1 silencing might alter EXT-1 expression indirectly
through PTCH-1, influencing cell-ECM interactions, and decreasing dysplastic changes, proliferation and invasion.
TL;DR: The mechanisms by which DNA-damaging agents trigger apoptosis, the interplay between pro- and apoptosis-inducing signals, and the potential for alteration of these pathways in cancer are the primary topics of this review.
Abstract:
Maintaining a tumour cell's resistance to apoptosis (organized cell death) is essential
for cancer to metastasize. Signal molecules play a critical function in the tightly regulated apoptotic
process. Apoptosis may be triggered by a wide variety of cellular stresses, including DNA damage,
but its ultimate goal is always the same: the removal of damaged cells that might otherwise
develop into tumours. Many chemotherapy drugs rely on cancer cells being able to undergo apoptosis
as a means of killing them. The mechanisms by which DNA-damaging agents trigger apoptosis,
the interplay between pro- and apoptosis-inducing signals, and the potential for alteration of these
pathways in cancer are the primary topics of this review.
TL;DR: In contrast to early-timepoint in vitro RNA-seq analysis, which showed a high degree of concordance between protein- and gene therapy-treated chondrocytes, in vivo transcriptomic analysis, revealed few gene expression changes following protein treatment.
Abstract:
Osteoarthritis (OA) is a highly debilitating, degenerative pathology of cartilaginous
joints affecting over 500 million people worldwide. The global economic burden of OA
is estimated at $260-519 billion and growing, driven by aging global population and increasing
rates of obesity. To date, only the multi-injection chondroanabolic treatment regimen of Fibroblast
Growth Factor 18 (FGF18) has demonstrated clinically meaningful disease-modifying efficacy in
placebo-controlled human trials. Our work focuses on the development of a novel single injection
disease-modifying gene therapy, based on FGF18’s chondroanabolic activity.
OA was induced in Sprague-Dawley rats using destabilization of the medial meniscus
(DMM) (3 weeks), followed by intra-articular treatment with 3 dose levels of AAV2-FGF18, rh-
FGF18 protein, and PBS. Durability, redosability, and biodistribution were measured by quantifying
nLuc reporter bioluminescence. Transcriptomic analysis was performed by RNA-seq on cultured
human chondrocytes and rat knee joints. Morphological analysis was performed on knee
joints stained with Safranin O/Fast Green and anti-PRG antibody.
Dose-dependent reductions in cartilage defect size were observed in the AAV2-FGF18-
treated joints relative to the vehicle control. Total defect width was reduced by up to 76% and cartilage
thickness in the thinnest zone was increased by up to 106%. Morphologically, the vehicle-
treated joints exhibited pronounced degeneration, ranging from severe cartilage erosion and
bone void formation, to subchondral bone remodeling and near-complete subchondral bone collapse.
In contrast, AAV2-FGF18-treated joints appeared more anatomically normal, with only regional
glycosaminoglycan loss and marginal cartilage erosion. While effective at reducing cartilage
lesions, treatment with rhFGF18 injections resulted in significant joint swelling (19% increase
in diameter), as well as a decrease in PRG4 staining uniformity and intensity. In contrast to
early-timepoint in vitro RNA-seq analysis, which showed a high degree of concordance between
protein- and gene therapy-treated chondrocytes, in vivo transcriptomic analysis, revealed few gene
expression changes following protein treatment. On the other hand, the gene therapy treatment exhibited
a high degree of durability and localization over the study period, upregulating several
chondroanabolic genes while downregulating OA- and fibrocartilage-associated markers.
FGF18 gene therapy treatment of OA joints can provide benefits to both cartilage
and subchondral bone, with a high degree of localization and durability.
TL;DR: This study conducted single-cell analysis on paired samples obtained from primary colorectal tumors and individuals with Crohn's disease, aimed at deciphering the factors influencing the composition of the intestinal immune microenvironment and revealing T-cell responding mechanisms in CD and CRC.
Abstract:
Crohn's disease (CD) and colorectal cancer (CRC) represent a group of
intestinal disorders characterized by intricate pathogenic mechanisms linked to the disruption of intestinal
immune homeostasis. Therefore, comprehending the immune response mechanisms in
both categories of intestinal disorders is of paramount significance in the prevention and treatment
of these debilitating intestinal ailments.
In this study, we conducted single-cell analysis on paired samples obtained from primary
colorectal tumors and individuals with Crohn's disease, which was aimed at deciphering the factors
influencing the composition of the intestinal immune microenvironment. By aligning T cells
across different tissues, we identified various T cell subtypes, such as γδ T cell, NK T cell, and regulatory
T (Treg) cell, which maintained immune system homeostasis and were confirmed in enrichment
analyses. Subsequently, we generated pseudo-time trajectories for subclusters of T cells
in both syndromes to delineate their differentiation patterns and identify key driver genes.
Furthermore, cellular communication and transcription factor regulatory networks are all
essential components of the intricate web of mechanisms that regulate intestinal immune homeostasis.
The identified complex cellular interaction suggested potential T-lineage immunotherapeutic
targets against epithelial cells with high copy number variation (CNV) levels in CD and CRC.
Finally, the analysis of regulon networks revealed several promising candidates for
cell-specific transcription factors (TFs). This study focused on the immune molecular mechanism
under intestinal diseases. It contributed to the novel insight of depicting a detailed immune landscape
and revealing T-cell responding mechanisms in CD and CRC.
TL;DR: This review explores the methods of introducing Channelrhodopsin- 2 (ChR2), a key light-sensitive protein, into cochlear cells to enable optogenetic stimulation, potentially overcoming the limitations of current auditory prostheses.
Abstract:
Hearing loss is a prevalent sensory impairment significantly affecting communication
and quality of life. Traditional approaches for hearing restoration, such as cochlear implants, have
limitations in frequency resolution and spatial selectivity. Optogenetics, an emerging field utilizing
light-sensitive proteins, offers a promising avenue for addressing these limitations and revolutionizing
hearing rehabilitation. This review explores the methods of introducing Channelrhodopsin-
2 (ChR2), a key light-sensitive protein, into cochlear cells to enable optogenetic stimulation. Viral-
mediated gene delivery is a widely employed technique in optogenetics. Selecting a suitable viral
vector, such as adeno-associated viruses (AAV), is crucial in efficient gene delivery to cochlear
cells. The ChR2 gene is inserted into the viral vector through molecular cloning techniques,
and the resulting viral vector is introduced into cochlear cells via direct injection or round window
membrane delivery. This allows for the expression of ChR2 and subsequent light sensitivity in targeted
cells. Alternatively, direct cell transfection offers a non-viral approach for ChR2 delivery.
The ChR2 gene is cloned into a plasmid vector, which is then combined with transfection agents
like liposomes or nanoparticles. This mixture is applied to cochlear cells, facilitating the entry of
the plasmid DNA into the target cells and enabling ChR2 expression. Optogenetic stimulation using
ChR2 allows for precise and selective activation of specific neurons in response to light, potentially
overcoming the limitations of current auditory prostheses. Moreover, optogenetics has broader
implications in understanding the neural circuits involved in auditory processing and behavior.
The combination of optogenetics and gene delivery techniques provides a promising avenue for
improving hearing restoration strategies, offering the potential for enhanced frequency resolution,
spatial selectivity, and improved auditory perception.
TL;DR: ZNF695 expression correlates with immune infiltrates and poor prognosis in cervical squamous cell carcinoma and endocervical adenocarcinoma.
Abstract: BACKGROUND
The role of Zinc Finger Protein 695 (ZNF695) is unclear in cervical squamous cell carcinoma and endocervical adenocarcinoma (CESC).
OBJECTIVE
The objective of this study was to conduct a comprehensive analysis and experimental validation of ZNF695 in CESC.
METHODS
The study investigated the expression of ZNF695 in both pan-cancer and CESC, utilizing data from The Cancer Genome Atlas (TCGA) database to assess its diagnostic value. The present study investigated the association between ZNF695 expression levels and clinical characteristics, as well as prognosis, in patients with CESC. The study explored potential regulatory networks involving ZNF695, including its association with immune infiltration, immune score, stemness index based on mRNA expression (mRNAsi), and drug sensitivity in CESC. We explored the expression of ZNF695 in CESC single cells. ZNF695 expression was validated using GSE29570.
RESULTS
ZNF695 was found to be aberrantly expressed in pan-cancer and CESC. There was a significant correlation observed between an elevated level of ZNF695 expression in patients with CESC and histological grade (p = 0.017). Furthermore, a strong association was found between high ZNF695 expression in CESC patients and poorer overall survival (OS) (HR: 1.87; 95% CI: 1.17-3.00; p = 0.009), Progression-free Survival (PFS) (HR: 1.86; 95% CI: 1.16-2.98; p = 0.010), and Disease-specific Survival (DSS) (HR: 1.98; 95% CI: 1.15-3.42; p = 0.014). The expression of ZNF695 in CESC patients (p = 0.006) was identified as an independent prognostic determinant. ZNF695 was associated with steroid hormone biosynthesis, oxidative phosphorylation, and so on. ZNF695 expression correlated with immune infiltration, immune score, and mRNAsi in CESC. ZNF695 expression significantly and negatively correlated with AICA ribonucleotide, BIX02189, QL-XI-92, STF-62247, and SNX-2112 in CESC. ZNF695 gene was upregulated in CESC tissues and cell lines. ZNF695 was significantly upregulated in the CESC cell lines.
CONCLUSION
ZNF695 may be a potential prognostic biomarker and immunotherapeutic target for CESC patients.
TL;DR: DBIL, but not IBIL, was associated with short-term ominous prognosis in patients with HFpEF and may be the superior predictor for prognosis in HFpEF.
Abstract: Abnormal live function tests have been identified as independent risk factors for ominous prognosis in patients with heart failure. However, most of the previous studies have failed to determine the contribution of direct bilirubin (DBIL) and indirect bilirubin (IBIL) separately. Hence, we aimed to explore whether DBIL or IBIL is correlated with the prognosis of heart failure with preserved ejection fraction (HFpEF). Methods: A total of 19837 patients were hospitalized for HFpEF between January 2012 and January 2022 in Fuqing City Hospital affiliated with Fujian Medical University. The primary endpoint was in-hospital all-cause mortality. Secondary endpoints included in-hospital cardiovascular mortality and 30-day re-admission for heart failure. Results: Univariable analysis indicated that patients with elevated DBIL or IBIL were exposed to a higher risk of mortality and re-admission. However, in multivariable models, both ln-transformed DBIL and TBIL, but not IBIL, were independent risk factors for in-hospital all-cause mortality [hazard ratio (HR)=1.796, 95% confidential interval (CI)=1.477-2.183, P<0.001; HR=1.854, 95% CI=1.461-2.352, P<0.001; HR=1.161, 95% CI=0.959-1.407, P=0.126] and in-hospital cardiovascular mortality (HR=1.831, 95% CI=1.345-2.492, P<0.001; HR=1.899, 95% CI=1.300-2.773, P=0.001; HR=1.145, 95% CI=0.841-1.561, P=0.389). Only DBIL remained independently associated with 30-day readmission for heart failure (HR=1.361, 95% CI=1.036-1.787, P=0.027). Adding ln-transformed DBIL to model 1 increased its discriminatory capacity (C-statistic: 0.851 to 0.869, respectively), whereas adding ln-transformed IBIL yielded little increment (C-statistic: 0.851 to 0.852, respectively). Conclusion: DBIL, but not IBIL, was associated with short-term ominous prognosis in patients with HFpEF. Hence, DBIL may be the superior predictor for prognosis in HFpEF.
TL;DR: This study introduces DeepLCRmiRNA, a hybrid neural network approach that efficiently identifies lung cancer-associated miRNAs, outperforming existing technologies through comprehensive benchmark tests and biological validation.
Abstract: Introduction: Lung cancer stands as one of the most prevalent malignant neoplasms, with microRNAs (miRNAs) playing a pivotal role in the modulation of gene expression, impacting cancer cell proliferation, invasion, metastasis, immune escape, and resistance to therapy. Method: The intricate role of miRNAs in lung cancer underscores their significance as biomarkers for early detection and as novel targets for therapeutic intervention. Traditional approaches for the identification of miRNAs related to lung cancer, however, are impeded by inefficiencies and complexities. Results: In response to these challenges, this study introduced an innovative deep-learning strategy designed for the efficient and precise identification of lung cancer-associated miRNAs. Through comprehensive benchmark tests, our method exhibited superior performance relative to existing technologies. Conclusion: Further case studies have also confirmed the ability of our model to identify lung cancer-associated miRNAs that have undergone biological validation.
TL;DR: Potential therapeutic approach using aromatic l-amino acid decarboxylase (AADC) and glial-derived neurotrophic factor (GDNF) therapy targeting putamen in Parkinson's disease (PD) involves the use of AADC and GDNF to control PD symptoms and improve therapeutic outcomes.
Abstract: Parkinson's disease (PD) is a neurodegenerative illness characterized by specific loss of dopaminergic neurons, resulting in impaired motor movement. Its prevalence is twice as compared to the previous 25 years and affects more than 10 million individuals. Lack of treatment still uses levodopa and other options as disease management measures. Treatment shifts to gene therapy (GT), which utilizes direct delivery of specific genes at the targeted area. Therefore, the use of aromatic L-amino acid decarboxylase (AADC) and glial-derived neurotrophic factor (GDNF) therapy achieves an effective control to treat PD. Patients diagnosed with PD may experience improved therapeutic outcomes by reducing the frequency of drug administration while utilizing provasin and AADC as dopaminergic protective therapy. Enhancing the enzymatic activity of tyrosine hydroxylase (TH), glucocorticoid hormone (GCH), and AADC in the striatum would be useful for external L-DOPA to restore the dopamine (DA) level. Increased expression of glutamic acid decarboxylase (GAD) in the subthalamic nucleus (STN) may also be beneficial in PD. Targeting GDNF therapy specifically to the putaminal region is clinically sound and beneficial in protecting the dopaminergic neurons. Furthermore, preclinical and clinical studies supported the role of GDNF in exhibiting its neuroprotective effect in neurological disorders. Another Ret receptor, which belongs to the tyrosine kinase family, is expressed in dopaminergic neurons and sounds to play a vital role in inhibiting the advancement of PD. GDNF binding on those receptors results in the formation of a receptor-ligand complex. On the other hand, venous delivery of recombinant GDNF by liposome-based and encapsulated cellular approaches enables the secure and effective distribution of neurotrophic factors into the putamen and parenchyma. The current review emphasized the rate of GT target GDNF and AADC therapy, along with the corresponding empirical evidence.
TL;DR: This review highlights STAT3 as a key architect in colorectal cancer pathogenesis, with aberrant activation linked to enhanced cell proliferation, suppressed apoptosis, and facilitated tumor invasion and metastasis, making it a promising target for CRC treatment strategies.
Abstract: Abstract: Colorectal cancer (CRC) has become a significant threat in recent decades, and its incidence is predicted to continue rising. Despite notable advancements in therapeutic strategies, managing CRC poses complex challenges, primarily due to the lack of clinically feasible therapeutic targets. Among the myriad molecules implicated in CRC, the signal transducer and activator of transcription 3 (STAT3) stands out as a promising target tightly regulated by various genes. This intracellular transcription factor, spanning 750-795 amino acids and weighing approximately 92 kDa, is crucial in key cellular activities such as growth, migration, invasion, inflammation, and angiogenesis. Aberrant activation of STAT3 signaling has been linked to various cancers, including CRC. Therefore, targeting this signaling pathway holds significance for potential CRC treatment strategies.STAT3, as a central intracellular transcription factor, is implicated in colorectal cancer development by activating aberrant signaling pathways. Numerous studies have demonstrated that the abnormal hyperactivation of STAT3 in CRC tissues enhances cell proliferation, suppresses apoptosis, promotes angiogenesis, and facilitates tumor invasion and metastasis. As a focal point in colorectal cancer research, STAT3 emerges as a promising candidate for detecting and treating CRC. This review aims to present recent data on STAT3, emphasizing the activation and functions of STAT3 inhibitors in CRC. Indeed, STAT3 inhibitors have been identified to have therapeutic potential in CRC, especially inhibitors targeting the DNA-binding domain (DBD). Indeed, STAT3 inhibitors have been identified to have a therapeutic potential in CRC, especially the inhibitors targeting the DNA binding domain (DBD). For example, imatinib acts by targeting cell surface receptors, and these inhibitors have shown potential for the control and treatment of tumor growth, angiogenesis, and metastasis. Imatinib, for example acts by targeting cell surface receptors, and these inhibitors have shown the future direction toward the control and treatment of tumor growth, angiogenesis, and metastasis.
TL;DR: Hepatocyte growth factor (HGF) regulates folliculogenesis, steroidogenesis, and spermatogenesis through various cellular functions, and its therapeutic potential has been explored for treating male and female infertility, particularly premature ovarian insufficiency.
Abstract: Abstract: Hepatocyte growth factor (HGF) is expressed in multiple systems and mediates a variety of biological activities, such as mitosis, motility, and morphogenesis. A growing number of studies have revealed the expression patterns and functions of HGF in ovarian and testicular physiology from the prenatal to the adult stage. HGF regulates folliculogenesis and steroidogenesis by modulating the functions of theca cells and granulosa cells in the ovary. It also mediates somatic cell proliferation and steroidogenesis, thereby affecting spermatogenesis in males. In addition to its physiological effects on the reproductive system, HGF has shown advantages in preclinical studies over recent years for the treatment of male and female infertility, particularly in women with premature ovarian insufficiency. This review aims to summarize the pleiotropic functions of HGF in the reproductive system and to provide prospects for its clinical application.
TL;DR: This study comprehensively analyzes HEPACAM2's role in colorectal cancer, validating its potential as a prognostic biomarker and immunotherapy target, with decreased expression linked to poorer overall survival and tumor progression.
Abstract: Background: The role of HEPACAM family member 2 (HEPACAM2) is unclear in colorectal cancer (CRC). Objective: The objective of this study was to perform an extensive examination of HEPACAM2 and validate it experimentally in CRC. Methods: This study investigated the significance of HEPACAM2 in CRC and its potential diagnostic utility utilizing data from the Cancer Genome Atlas (TCGA) database. Additionally, the study examined potential regulatory networks involving HEPACAM2, including its associations with immune infiltration, immune checkpoint genes, tumor mutational burden (TMB), microsatellite instability (MSI), mRNA expression-based stemness index (mRNAsi), and drug sensitivity in CRC. The expression of HEPACAM2 was further validated using the GSE89076 dataset, and quantitative reverse transcription PCR (qRT-PCR) was employed to confirm HEPACAM2 expression levels in six pairs of CRC tissue samples. Results: HEPACAM2 exhibited abnormal expression patterns in various types of cancer, including CRC. A decrease in HEPACAM2 expression levels in CRC was found to be significantly correlated with the T stage (p < 0.001). Reduced HEPACAM2 expression in CRC patients was also linked to poorer overall survival (OS) (p = 0.007). The expression levels of HEPACAM2 in CRC patients were identified as an independent prognostic factor (p = 0.016). Furthermore, HEPACAM2 was associated with TCF-dependent signaling in response to WNT, G2/M checkpoints, and other pathways. The expression of HEPACAM2 in CRC was found to be associated with immune infiltration, immune checkpoint genes, TMB / MSI, and mRNAsi. Additionally, the expression of HEPACAM2 in CRC was significantly and inversely correlated with the drug sensitivities to gw772405x and 6-phenyl-6h-indeno[1,2-c]isoquinoline-5,11-dione. qRT-PCR confirmed that the expression level of HEPACAM2 was found to be lowly expressed in CRC tissues. Conclusion: These findings suggest that HEPACAM2 may serve as a potential prognostic biomarker and immunotherapeutic target for CRC patients.
TL;DR: The biogenesis and functions of circRNAs are reviewed and how circRNAs participate in pulmonary fibrogenesis by influencing various cell fates are examined to provide new insights into the development circRNA-based approaches to treat pulmonary fibrosis.
Abstract:
Pulmonary fibrosis is a class of fibrosing interstitial lung diseases caused by many
pathogenic factors inside and outside the lung, with unknown mechanisms and without effective
treatment. Therefore, a comprehensive understanding of the molecular mechanism implicated in
pulmonary fibrosis pathogenesis is urgently needed to develop new and effective measures. Although circRNAs have been widely acknowledged as new contributors to the occurrence and development of diseases, only a small number of circRNAs have been functionally characterized in
pulmonary fibrosis. Here, we systematically review the biogenesis and functions of circRNAs and
focus on how circRNAs participate in pulmonary fibrogenesis by influencing various cell fates.
Meanwhile, we analyze the current exploration of circRNAs as a diagnostic biomarker, vaccine,
and therapeutic target in pulmonary fibrosis and objectively discuss the challenges of circRNA-based therapy for pulmonary fibrosis. We hope that the review of the implication of circRNAs will provide new insights into the development circRNA-based approaches to treat pulmonary fibrosis.
TL;DR: CRISPR-based therapies hold promise for addressing genetic components of neurodegenerative disorders, offering precise genetic manipulation and potential treatments for various diseases. The technology has advanced rapidly, with promising studies and trials demonstrating its effectiveness and safety. However, challenges and ethical considerations must be carefully considered to ensure responsible and equitable access to these therapies.
Abstract: : Neurodegenerative disorders pose significant challenges in the realm of healthcare, as these conditions manifest in complex, multifaceted ways, often attributed to genetic anomalies. With the emergence of CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) technology, a new frontier has been unveiled in the quest for targeted, precise genetic manipulation. This abstract explores the recent advancements and potential applications of CRISPR-based therapies in addressing genetic components contributing to various neurodegenerative disorders. The review delves into the foundational principles of CRISPR technology, highlighting its unparalleled ability to edit genetic sequences with unprecedented precision. In addition, it talks about the latest progress in using CRISPR to target specific genetic mutations linked to neurodegenerative diseases like Huntington's disease, Alzheimer's disease, amyotrophic lateral sclerosis (ALS), and Parkinson's disease. It talks about the most important studies and trials that show how well and safely CRISPR-based therapies work. This shows how this technology can change genetic variants that cause diseases. Notably, the discussion emphasizes the challenges and ethical considerations associated with the implementation of CRISPR in clinical settings, including off-target effects, delivery methods, and long-term implications. Furthermore, the article explores the prospects and potential hurdles in the widespread application of CRISPR technology for treating neurodegenerative disorders. It touches upon the need for continued research, improved delivery mechanisms, and ethical frameworks to ensure responsible and equitable access to these groundbreaking therapies.
TL;DR: Results show that hsa_circ_0102231 knockdown impedes the progression of liver cancer by regulating the miR-873/SOX4 axis, and further studies are needed to determine whether hsa_circ_0102231 may be a therapeutic target in liver cancer.
Abstract: Hepatocellular carcinoma (HCC) is one of the most intractable tumors in the world due to its high rate of recurrence and heterogeneity.
TL;DR: This review will provide an overview of the latest research on the roles and regulatory mechanisms of ncRNA after RT in in vitro and preclinical research.
Abstract: Radiotherapy (RT) is an integral part of treatment management in cancer patients. However, one of the limitations of this treatment method is the resistance of cancer cells to radiotherapy. These restrictions necessitate the introduction of modalities for the radiosensitization of cancer cells. It has been shown that Noncoding RNAs (ncRNAs), along with modifiers, can act as radiosensitivity and radioresistant regulators in a variety of cancers by affecting double strand break (DSB), wnt signaling, glycolysis, irradiation induced apoptosis, ferroptosis and cell autophagy. This review will provide an overview of the latest research on the roles and regulatory mechanisms of ncRNA after RT in in vitro and preclinical research.
TL;DR: Acetylresveratrol (AC-Res) is a powerful stilbene phytoalexin with a wide range of biological activities. However, its inadequate stabilization and conformation rigidity limit its utility as a medication. Recent advancements in nanotechnology are paving the way for potential improvements in the delivery and efficacy of AC-Res.
Abstract: Background: Acetylresveratrol (AC-Res), to date, is a powerful stilbene phytoalexin generated organically or as a component of a plant's defensive system, is a significant plant phenolic chemical portion and is investigated as a therapy option for a number of disorders. Owing to its inadequate stabilisation and considerable conformation rigidity, the utility of AC-Res as a medication is limited. Objective: The current review article outlined the structure of AC-Res, their methods of activity, and the latest technological progress in the administration of these molecules. It is conceivable to deduce that AC-Res has a variety of consequences for the cellular functions of infected cells. Methods: The literature survey for the present article was gathered from the authentic data published by various peer-reviewed publishers employing Google Scholar and PubMedprioritizing Scopus and Web of Science indexed journals as the search platform focusing on AC-Res pharmacological actions, particularly in the English language. Result: Despite its extensive spectrum of biological and therapeutic applications, AC-Res has become a source of increasing concern. Depending on the researchers, AC-Res possesses radioprotective, cardioprotective, neurological, anti-inflammatory, and anti-microbial potential. It also has anti-cancer and antioxidant properties. Conclusion: To avoid non-specific cytotoxicity, optimization efforts are presently emphasizing the possible usage of AC-Res based on nanocrystals, nanoparticles and dendrimers, and nanocrystals. Finally, while using AC-Res in biology is still a way off, researchers agree that if they continue to explore it, AC-Res and similar parts will be recognized as actual possibilities for a variety of things in the next years.
TL;DR: This study identifies gene signatures associated with COVID-19 in children, adolescents, and adults using machine learning, revealing distinct immune responses and potential therapeutic targets, including insulin-like growth factor binding protein 3, interferon alpha-inducible protein 27, and SERPING1.
Abstract: Background: Significant variations in immune profiles across different age groups manifest distinct clinical symptoms and prognoses in Coronavirus Disease 2019 (COVID-19) patients. Predominantly, severe COVID-19 cases that require hospitalization occur in the elderly, with the risk of severe illness escalating with age among young adults, children, and adolescents. Objective: This study aimed to delineate the unique immune characteristics of COVID-19 across various age groups and evaluate the feasibility of detecting COVID-19-induced immune alterations through peripheral blood analysis. Methods: By employing a machine learning approach, we analyzed gene expression data from nasopharyngeal and peripheral blood samples of COVID-19 patients across different age brackets. Nasopharyngeal data reflected the immune response to COVID-19 in the upper respiratory tract, while peripheral blood samples provided insights into the overall immune system status. Both datasets encompassed COVID-19 patients and healthy controls, with patients divided into children, adolescents, and adult age groups. The analysis included the expression levels of 62,703 genes per patient. Then, 9 feature-sequencing methods (least absolute shrinkage and selection operator, light gradient boosting machine, Monte Carlo feature selection, random forest, ridge regression, adaptive boosting, categorical boosting, extremely randomized trees, and extreme gradient boosting) were employed to evaluate the association of the genes with COVID-19. Key genes were then utilized to develop efficient classification models. Results: The findings identified specific markers: insulin-like growth factor binding protein 3 (downregulated in the peripheral blood of COVID-19 patients), interferon alpha-inducible protein 27 (upregulated), and SERPING1 (upregulated in nasopharyngeal tissues). In addition, fibulin-2 was downregulated in adolescent patients, but upregulated in the other groups, while epoxide hydrolase 3 was upregulated in healthy controls, but downregulated in children and adolescents. Conclusion: This study offers valuable insights into the local and systemic immune responses of COVID-19 patients across age groups, aiding in identifying potential therapeutic targets and formulating personalized treatment strategies.
TL;DR: This study explores novel immune modulation strategies in gene therapy to overcome immune barriers and enhance efficacy, including immunological checkpoint manipulation, immunotolerance induction, and smart use of immunomodulatory drugs, to maximize gene-based therapy outcomes.
Abstract: Abstract: The immune system presents significant obstacles to gene therapy, which has limited its use in treating many illnesses. New approaches are needed to overcome these problems and improve the effectiveness of gene therapy. This study explores several techniques to immune regulation within gene therapy, a cutting-edge discipline that aims to optimise results by fine-tuning the immune response. We cover new ways to control the immune system and deliver therapeutic genes just where they are needed, including influencing immunological checkpoints, causing immunotolerance, and making smart use of immunomodulatory drugs. In addition, the study provides insight into new developments in the design of less immunogenic gene delivery vectors, which allow for the extension of transgene expression with minimal adverse immune reactions. In order to maximise the efficacy of gene-based therapies, this review analyses these novel approaches and gives a thorough overview of the present state of the art by addressing obstacles and pointing the way toward future developments in immune regulation. Not only does their integration provide new opportunities for the creation of safer and more effective gene treatments, but it also contains the key to overcome current obstacles.
TL;DR: Alternative splicing of pre-mRNA plays a crucial role in oral diseases, producing diverse isoforms with varying functions, and its aberration is associated with gene mutations, offering potential for gene therapy and disease understanding.
Abstract: Alternative splicing (AS) of pre-mRNA occurs widely in human genes to produce multiple isoforms with different or even opposite functions. Aberrant AS is often associated with gene mutations and can be corrected by gene therapy. Oral diseases are important public health problems worldwide. Accumulated pieces of evidence demonstrate that AS of pathogenic genes plays key roles in some oral diseases. However, considering the extensiveness and complexity of AS, it may affect the initiation and development of oral diseases deeply and widely. This review describes the diversity of AS and resulting isoforms in genetic, infectious, and malignant oral diseases and highlights the key roles of AS in determining the function of isoforms and the occurrence and progression of these diseases. The studies of alternative splicing may provide great opportunities for the understanding and treatment of oral diseases.
TL;DR: Single-cell and bulk transcriptomic analyses reveal a stemness and circadian rhythm disturbance-related signature predicting clinical outcome and immunotherapy response in hepatocellular carcinoma.
Abstract: Aims: Investigating the impact of stemness-related circadian rhythm disruption (SCRD) on hepatocellular carcinoma (HCC) prognosis and its potential as a predictor for immunotherapy response. Background: Circadian disruption has been linked to tumor progression through its effect on the stemness of cancer cells. Objective: Develop a novel signature for SCRD to accurately predict clinical outcomes and immune therapy response in patients with HCC. Methods: The stemness degree of patients with HCC was assessed based on the stemness index (mRNAsi). The co-expression circadian genes significantly correlated with mRNAsi were identified and defined as stemness- and circadian-related genes (SCRGs). The SCRD scores of samples and cells were calculated based on the SCRGs. Differentially expressed genes with a prognostic value between distinct SCRD groups were identified in bulk and single-cell datasets to develop an SCRD signature. result: A higher SCRD score indicates a worse patient survival rate. Analysis of the tumor microenvironment revealed a significant correlation between SCRD and infiltrating immune cells. Heterogeneous of expression patterns, functional states, genomic variants, and cell-cell interactions between two SCRD populations were revealed by transcriptomic, genomic, and interaction analyses. The robust SCRD signature for predicting immunotherapy response and prognosis in patients with HCC was developed and validated in multiple independent cohorts. Results: A higher SCRD score indicates a worse patient survival rate. Analysis of the tumor microenvironment revealed a significant correlation between SCRD and infiltrating immune cells. Heterogeneous expression patterns, functional states, genomic variants, and cell-cell interactions between two SCRD populations were revealed by transcriptomic, genomic, and interaction analyses. The robust SCRD signature for predicting immunotherapy response and prognosis in patients with HCC was developed and validated in multiple independent cohorts. Conclusions: In summary, distinct tumor immune microenvironment patterns were confirmed under SCRD in bulk and single-cell transcriptomic, and SCRD signature associated with clinical outcomes and immunotherapy response was developed and validated in HCC.
TL;DR: This study demonstrates that delivery of the superoxide dismutase 3 (SOD3) gene via baculoviruses inhibits TNF-α-induced vascular smooth muscle cell proliferation and inflammation by suppressing cell cycle regulators and matrix metalloproteinases.
Abstract: Background: Superoxide dismutase 3 (SOD3), recognized as a potent free radical scavenger, exhibits antioxidant, anti-inflammatory, and anti-angiogenic properties. However, the molecular mechanisms underlying the protective effects of SOD3 on the vascular smooth muscle cell during atherosclerosis remain unclear. Objectives: This study aimed to investigate the efficacy of the baculovirus expressing SOD3 gene delivery to vascular smooth muscle cells (VSMCs) and investigate whether the overexpression of SOD3 mitigates cell proliferation and migration induced by tumor necrosis factor-α (TNF- Methods: A baculoviral vector containing SOD3 cDNA (vAcMBac-CMV-IE-SOD3) was constructed and utilized to deliver the SOD3 gene into primary rat VSMCs. Cells were stimulated with recombinant TNF-α, and then cell proliferation and migration were evaluated using the bromodeoxyuridine and wound healing assay. Western blot was used to verify the expression of cell cycle regulators, cellular mediators, and proliferative biomarkers. Zymography, immunofluorescence staining, and ELISA assay were conducted to assess the expression levels of matrix metalloproteinases. Results: The results demonstrated efficient and non-cytotoxic transduction of vAcMBac- CMV-IE-SOD3 in VSMCs. SOD3 overexpression significantly suppressed cell proliferation and motility by inhibiting cell cycle regulators in TNF-α-induced cells. TNF-α elevated protein levels of phospho-ERK and phospho-Akt were reduced markedly by SOD3-overexpressing. Additionally, SOD3 overexpression attenuated the elevation of MMP-2 and MMP-9, the pro-inflammatory and proliferative biomarkers. Overall, the SOD3 gene delivery exhibited potent anti-proliferation and anti-inflammation effects on TNF-α-induced VSMCs. Conclusion: An effective SOD3 gene delivery using a recombinant baculoviral vector has been successfully established and is useful for overexpression of the SOD gene family. This approach provides new therapeutic strategies in gene therapy against atherosclerosis.
TL;DR: SLC2A3 is a potential factor for head and neck squamous cancer development through tumor microenvironment alteration, affecting immune infiltration and survival prognosis.
Abstract: INTRODUCTION
Tumor immunity has garnered increasing attention in cancer treatment and progression. However, there is still a challenge in understanding the mechanisms of specific molecules affecting the clinical prognosis and tumor microenvironment (TME).
METHOD
Here, we applied the ESTIMATE algorithm to calculate the immune and stromal scores in 504 HNSC cases from TCGA. Patients were grouped according to the median value of the immune and stromal. Clinicopathological characteristics and differentially expressed genes (DEG) were analyzed. Subsequently, LASSO, COX regression, survival analysis, and clinicopathological characteristics were conducted. Subsequently, SLC2A3 was determined as a predictive factor that high expression of SLC2A3 at the mRNA and protein levels predicted a worse clinical prognosis. GSEA25099 was utilized for external validation of immune infiltration, while tissue PCR, IHC, and Western Blot were used to confirm the expression levels of SLC2A3.
RESULT
A series of immune-infiltration analyses showed that SLC2A3 expression was negatively correlated with CD8+ T cells, significantly affecting the survival prognosis of HNSC. In the GSEA analysis, the high expression of SLC2A3 was mainly enriched for immune-related biological processes. Meanwhile, high expression of SLC2A3 possessed higher TIDE scores and was also strongly positively correlated with a series of immune checkpoints affecting survival prognosis, thus causing greater susceptibility to immune escape.
CONCLUSION
Conclusively, SLC2A3 is a potential oncogene and factor of HNSC development, notably by an altered state of the immune microenvironment, immune-suppressive regulation, and immune escape.
TL;DR: CRISPR/Cas holds promise for therapeutic intervention in Hashimoto's thyroiditis, but limited research has been conducted in this field.
Abstract: Hashimoto's thyroiditis (HT) is a commonly occurring illness of autoimmune endocrine origin. It is usually present in the pediatric age group along with other well-known diseases, such as type 1 insulin-dependent diabetes. The defining feature of this disease is the immune-- mediated attack on the thyroid gland resulting in the destruction of thyroid tissues and cells. Given that HT frequently affects family members, it is well-recognized that individuals are genetically predisposed to this disease. Patients with HT also display a significantly increased risk for several different cancers, justifying the eminent need for the development of therapies for managing and treating HT. Gene editing has made several advancements in the field of molecular biology and has turned out to become a promising approach to correct several autoimmune diseases. Currently, CRISPR/Cas, a nuclease-based editing technique, is publicized as a promising tool for curing several genetic diseases and cancers. However, very limited research has been conducted as of now on autoimmune disease management and cure via CRISPR/Cas technique. This review provides an account of the potential candidate genes associated with Hashimoto's thyroiditis, and only a few animal and human models have been generated via the CRISPR/Cas gene editing technique. Mouse models of autoimmune thyroiditis generated through the CRISPR/Cas gene editing technique by targeting the candidate genes will provide us with a deeper insight into the pathophysiology of HT and further pave the way for the immunomodulation of HT via gene editing.
TL;DR: This study identifies a 12-gene OXPHOS-related signature in ovarian cancer, predicting high- and low-risk groups, and associates OXPHOS with immune infiltration and response to immunotherapy, improving individualized treatment and prognostic evaluation.
Abstract: BACKGROUND
Ovarian cancer is associated with a high mortality rate. Oxidative Phosphorylation (OXPHOS) is an active metabolic pathway in cancer; nevertheless, its role in ovarian cancer continues to be ambiguous. Therefore, the objective of this study was to identify the prognostic value of OXPHOS-related genes and the immune landscape in ovarian cancer.
METHODS
We obtained public ovarian cancer-related datasets from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases and recognized OXPHOS-related genes from the GeneCards database and literature. Cox regression analyses were conducted to identify prognostic OXPHOS-related genes and develop a prognostic nomogram based on the OXPHOS score and clinicopathological features of patients. Functional enrichment analyses were employed to identify related processes.
RESULTS
A 12-gene signature was identified to classify the ovarian cancer patients into high- and low-risk groups. The Immunophenoscore (IPS) was higher in the OXPHOS score-high group than in the OXPHOS score-low group, suggesting a better response to immune checkpoint inhibitors. Functional enrichment analyses unveiled that OXPHOS-related genes were considerably abundant in a series of immune processes. The calibration curves of the constructed prognostic nomograms at 1, 2, and 3 years exhibited strong concordance between the anticipated and observed survival probabilities of ovarian cancer patients.
CONCLUSION
We have constructed a prognostic model containing 12 OXPHOS-related genes and demonstrated its strong predictive value in ovarian cancer patients. OXPHOS has been found to be closely linked to immune infiltration and the reaction to immunotherapy, which may contribute to improving individualized treatment and prognostic evaluation in ovarian cancer.
TL;DR: The results suggested that the LPS-induced depression models were established successfully and catechin can reverse (LPS)-induced depressive-like behaviours in mice.
Abstract:
Many studies have suggested that tea has antidepressant effects; however,
the underlying mechanism is not fully studied. As the main anti-inflammatory polyphenol in
tea, catechin may contribute to the protective role of tea against depression.
The objective of this study is to prove that catechin can protect against
lipopolysaccharide (LPS)-induced depressive-like behaviours in mice, and then explore the underlying
molecular mechanisms.
Thirty-one C57BL/6J mice were categorized into the normal saline (NS) group, LPS
group, catechin group, and amitriptyline group according to their treatments. Elevated Plus Maze
(EPM), Tail Suspension Test (TST), and Open Field Test (OFT) were employed to assess depressive-
like behaviours in mice. RNA sequencing (RNA-seq) and subsequent Bioinformatics analyses,
such as differential gene analysis and functional enrichment, were performed on the four
mouse groups.
In TST, the mice in the LPS group exhibited significantly longer immobility time than
those in the other three groups, while the immobility times for the other three groups were not significantly
different. Similarly in EPM, LPS-treated mice exhibited a significantly lower percentage
in the time/path of entering open arms than the mice in the other three groups, while the percentages
of the mice in the other three groups were not significantly different. In OFT, LPS-treated
mice exhibited significantly lower percentages in the time/path of entering the centre area than
those in the other three groups. The results suggested that the LPS-induced depression models
were established successfully and catechin can reverse (LPS)-induced depressive-like behaviours
in mice. Finally, RNA-seq analyses revealed 57 differential expressed genes (DEGs) between LPS
and NS with 19 up-regulated and 38 down-regulated. Among them, 13 genes were overlapped
with the DEGs between LPS and cetechin (in opposite directions), with an overlapping p-value <
0.001. The 13 genes included Rnu7, Lcn2, C4b, Saa3, Pglyrp1, Gpx3, Lyz2, S100a8, S100a9,
Tmem254b, Gm14288, Hbb-bt, and Tmem254c, which might play key roles in the protection of
catechin against LPS-induced depressive-like behaviours in mice. The 13 genes were significantly
enriched in defense response and inflammatory response, indicating that catechin might work
through counteracting changes in the immune system induced by LPS.
Catechin can protect mice from LPS-induced depressive-like behaviours through affecting
inflammatory pathways and neuron-associated gene ontologies.