Exosomal transfer of miR-501 confers doxorubicin resistance and tumorigenesis via targeting of BLID in gastric cancer.

Statistics show that the prognosis of cervical cancer (CC) is poor, and the death rate of CC in advanced stage has been rising in recent years. Increasing evidence has demonstrated that circular RNAs (circRNAs) serve as promising biomarkers in human cancers, including CC. The present study planned to find out the circRNA involved in CC and to explore its regulatory mechanism in CC. We discovered the new circRNA, circ-0033550, upregulated in CC. Its associated gene was AKT (also known as protein kinase B) serine/threonine kinase 1 (AKT1), so we renamed circ-0033550 as circ-AKT1. We confirmed the high expression of circ-AKT1 in CC samples and cell lines, as well as the circle structure of circ-AKT1. Functionally, gain- and loss-of-function experiments indicated that circ-AKT1 and AKT1 promoted CC cell proliferation and invasion. Moreover, circ-AKT1 and AKT1 were induced by transforming growth factor beta (TGF-β) and facilitated EMT (epithelial-mesenchymal transition) in CC. Mechanically, we illustrated that circ-AKT1 upregulated AKT1 by sponging miR-942-5p. Rescue assays confirmed the role of the circ-AKT1/miR-942-5p/AKT1 axis in CC progression. In vivo assays validated that circ-AKT1 promoted tumor growth in CC. Overall, circRNA-AKT1 sequestered miR-942-5p to upregulate AKT1 and promote CC progression, which may offer a new molecular target for the treatment improvement of CC.

circRNA-AKT1 Sequesters miR-942-5p to Upregulate AKT1 and Promote Cervical Cancer Progression

Cervical esophageal cancer: a gap in cancer knowledge

Gene expression network regulated by DNA methylation and microRNA during microcystin-leucine arginine induced malignant transformation in human hepatocyte L02 cells.

Gastric pull-up (GPU) is among the oldest techniques for reconstructing the pharyngoesophageal junction following cancer resection This review examines morbidity and mortality rates following GPU pharyngoesophageal junction reconstruction from 1959 until present: 77 studies, 2,705 patients The odds of mortality, anastomotic complications, and other complications decreased by 372% (95%CI = 280–453%; P < 00001), 80% (95%CI = −21 to 171%; P = 012), 210% (95%CI 35–352%; P = 0021) per decade respectively J Surg Oncol © 2016 Wiley Periodicals, Inc

Revisiting the gastric pull‐up for pharyngoesophageal reconstruction: A systematic review and meta‐analysis of mortality and morbidity

Objectives: There is no generally accepted treatment strategy for cervical esophageal carcinoma. The purpose of this study was to evaluate the operative outcomes of reconstruction after resection of cervical esophageal and hypopharynx-esophagus junction carcinoma with larynx preservation. Methods: We retrospectively reviewed the data of 79 patients with carcinoma of the hypopharynx-esophagus junction and cervical esophagus. Transhiatal total esophagectomy without thoracotomy was carried out in 67 patients who underwent gastric pull-up (GP) or colon interposition (CI) techniques. Transcervical limited pharyngo-cervical esophagectomy was performed in the patients with the pectoralis major flap alone or combined with the split graft (PMF/CWSG) for reconstruction. Seventy-two patients received postoperative adjuvant therapy. Results: The 3-year and 5-year overall survival rates were 66.4% and 45.5%, respectively. The average time to resumption of oral feeding was 25.2 days. All patients had preserved laryngeal function. The overall incidence of complications was 29.1% (23/79), which included cervical fistula, abdominal wound dehiscence, liquefaction necrosis of abdominal fat, and pleural effusion. Conclusions: Surgical resection of cervical esophageal carcinoma and laryngeal preservation is possible. Complete esophagectomy should be performed when the resection extends below the thoracic inlet. The reconstruction methods we performed were safe and effective for the immediate restoration of alimentary continuity after resection of cervical esophageal and pharyngo-cervical esophageal carcinoma; and the patients with PMF/CWSG reconstruction had a better survival than those with GP or CI reconstruction. Combined with radiotherapy, the resectability rate and survival rate of cervical esophageal carcinoma can be improved.

Surgical management of cervical esophageal carcinoma with larynx preservation and reconstruction.

This study compares clinical characteristics and survival between patients with and without laryngeal function (LF) preservation during surgical treatment for hypopharyngeal carcinoma. We retrospectively reviewed 485 cases of hypopharyngeal carcinoma treated at a single institution for analysis. There were 337 cases with and 148 cases without LF preservation after surgery. Preservation of LF was complete in 237 patients and partial in 100 patients. There were significant statistical differences between the preservation group and the group without preservation in T-stage (P < 0.001), overall staging (P < 0.001), and tumor sites (P < 0.001) except the N-stage (P = 0.240). The patients with LF preservation had significantly better overall survival (log-rank, P = 0.005) and a lower risk of death than those without LF preservation (HR 0.62, 95 % CI 0.43–0.97), after multivariable adjustment. Treatment with surgery in combination with radiotherapy is still the favorable choice for patients with hypopharyngeal carcinoma. The maximal restoration of pharyngoesophageal continuity and function improves survival for patients whose tumors are excised completely for the preservation of LF and laryngeal and pharyngeal reconstruction.

Electronic supplementary material
The online version of this article (doi:10.1007/s00405-014-3115-2) contains supplementary material, which is available to authorized users.

https://link.springer.com/content/pdf/10.1007%2Fs00405-014-3115-2.pdf

Preservation of laryngeal function improves outcomes of patients with hypopharyngeal carcinoma

Objective To study the feasibility, surgical technique and results of laryngeal function preservation in surgical treatment for medial wall pyriform sinus cancer. Methods From 1992 to 1999, 31 patients with medial wall pyriform sinus cancer including stage I 1, II 4, III 14 and IV 12 lesions were treated. Partial resection of pyriform sinus and partial laryngectomy were performed, then, the remains of epiglottis and uni-pedicled sternohyoid myofascial flap were used to restore the defects of larynx. At last, the remaining hypopharyngeal mucosa was sutured to cover the wound of hypopharynx and for artificial rebuild-up. All patients received postoperative radiotherapy. Results The 3- and 5-year survival rates were 62.1% and 43.6% respectively, with 77.4% patients having laryngeal functions (voice, respiration and deglutition) completely restored and 32.6% partially restored (voice and deglutition). Conclusion Conservative surgery so introduced is feasible for selected medial wall pyriform sinus cancer patients with the lesion completely resected.

Preservation of laryngeal function in surgery for medial wall pyriform sinus cancer

ObjectiveTo study the surg ical treatment of tonsillar cancer. Methods Twenty-four patients with tonsillar cancer were treated with surgery and postoperative radiotherapy. The choice of surgical procedure was decided on the condition of the lesion. The tumor was resected through the transoral approach, mandibular swing approach, mandiblar resection approach or hyoid approach. Surg ical defect was repaired by pectoralis major myocutaneous flap, sternohyoid myo fascial flap, tongue flap or soft palate flap. Results The 3- and 5-year surv ival rates were 76.0% and 60.8%. Function of chewing, deglutition, respiration and speech was restored well. Conclusion Method of total resection of the to nsillar carcinoma through the optimum approach is best chosen according to the c ondition of the lesion, while preserving the oropharyngeal function. When combin ed with postoperative radiotherapy, the survival rate and quality of life of pat ients can be improved.

Surgical treatment of tonsillar cancer

In our previous study, we demonstrated that the BRCC2 (breast cancer cell 2) gene is a proapoptotic molecule that interacts with Bcl-XL. BRCC2 downregulation is associated with poor disease-free and overall survival in breast cancer. In this study, we aimed to investigate the role of BRCC2 in tumor suppression in breast cancer. In clinical breast cancer samples, we found that BRCC2 expression was significantly downregulated in cancer lesions compared with paired normal breast tissues. By silencing or overexpressing BRCC2 in breast cancer cells, we found that BRCC2 could inhibit cell growth and metastasis in vitro. An in vivo assay showed that BRCC2 not only dramatically inhibited breast cancer cell xenograft formation and growth but also inhibited breast cancer cell metastasis in a lung metastasis model. Moreover, we demonstrated that BRCC2 inhibited breast cancer metastasis via regulation of the Akt pathway. Thus, our study provided evidence that BRCC2 functions as a novel tumor suppressor in breast cancer and may be a potential therapeutic target for breast cancer management.

BRCC2 inhibits breast cancer cell growth and metastasis in vitro and in vivo via downregulating AKT pathway.

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Qiuan Yang

Author Tools

Chat about Author