This study aims to optimize the human extended pluripotent stem cell (EPSC) to trophectoderm (TE)‐like cell induction with addition of EGF and improve the quality of the reconstructing blastoids.

https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/cpr.13317

Epidermal growth factor induces a trophectoderm lineage transcriptome resembling that of human embryos during reconstruction of blastoids from extended pluripotent stem cells

Acute pancreatitis (AP) often leads to a high incidence of cardiac injury, posing significant challenges in the treatment of severe AP and contributing to increased mortality rates. Mesenchymal stem cells (MSCs) release bioactive molecules that participate in various inflammatory diseases. Similarly, extracellular vesicles (EVs) secreted by MSCs have garnered extensive attention due to their comparable anti-inflammatory effects to MSCs and their potential to avoid risks associated with cell transplantation. Recently, the therapeutic potential of MSCs-EVs in various inflammatory diseases, including sepsis and AP, has gained increasing recognition. Although preclinical research on the utilization of MSCs-EVs in AP-induced cardiac injury is limited, several studies have demonstrated the positive effects of MSCs-EVs in regulating inflammation and immunity in sepsis-induced cardiac injury and cardiovascular diseases. Furthermore, clinical studies have been conducted on the therapeutic application of MSCs-EVs for some other diseases, wherein the contents of these EVs could be deliberately modified through prior modulation of MSCs. Consequently, we hypothesize that MSCs-EVs hold promise as a potential therapy for AP-induced cardiac injury. This paper aims to discuss this topic. However, additional research is essential to comprehensively elucidate the underlying mechanisms of MSCs-EVs in treating AP-induced cardiac injury, as well as to ascertain their safety and efficacy.

Generation of a human haploid neural stem cell line for genome-wide genetic screening

Abstract Recently, haploid embryonic stem cells (haESCs) have been established in many species and widely used in forward and reverse genetic screening. Differentiated haploid cell line types in mammals are lacking due to spontaneous diploidization during differentiation that compromises lineage-specific screens. Human embryonic stem cells are widely used in basic and preclinical research. In this work, we report that human haESCs in extended pluripotent culture medium showed more compact colonies, higher efficiency in neural differentiation, and higher stability in haploidy maintenance, which effectively facilitated the derivation of haNSCs. Human haploid neural stem cells (haNSCs) can be generated by differentiation and maintain haploidy and multipotency to neurons and glia in the long term in vitro. After PiggyBac transfection, there were multiple insertion sites in the haNSC genome and the insertion sites evenly spread across all chromosomes. This is the first human haploid somatic cell line with a complete genome, proliferative ability and neural differentiation potential, which provides cell resources for recessive inheritance and drug targeted screening. 

Generation of human haploid neural stem cells from parthenogenetic embryonic stem cells

Blastoids derived from pluripotent cells: Current research status and future prospect

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Epidermal growth factor induces a trophectoderm lineage transcriptome resembling that of human embryos during reconstruction of blastoids from extended pluripotent stem cells