scholarly journals Mouse Androgenetic Embryonic Stem Cells Differentiated to Multiple Cell Lineages in Three Embryonic Germ Layers In Vitro

2009 ◽  
Vol 55 (3) ◽  
pp. 283-292 ◽  
Author(s):  
Takeshi TERAMURA ◽  
Yuta ONODERA ◽  
Hideki MURAKAMI ◽  
Syunsuke ITO ◽  
Toshihiro MIHARA ◽  
...  
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Embryonic Stem ◽  
Germ Layers ◽  
Cell Lineages ◽  
Multiple Cell

Antler Stem Cells Sustain Regenerative Wound Healing in Deer and in Rats

2020 ◽  
Author(s):  
Chunyi Li
Keyword(s):  
Stem Cells ◽  
Wound Healing ◽  
Direct Injection ◽  
Embryonic Stem ◽  
Marker Genes ◽  
Cutaneous Wounds ◽  
Cell Lineages ◽  
Multiple Cell ◽  
Transplantation Experiments

Deer antlers are unique mammalian appendages in that they can fully regenerate following lossfrom their pedicles (permanent bony protuberances). Antler regeneration starts from regenerative wound healing on top of a pedicle stump. A combination of tissue deletion and transplantation experiments showed that this type of regenerative healing is not skin-specific, but is bestowed by the pedicle periosteum (PP). PP cells express marker genes of both mesenchymal and embryonic stem cells, and can be induced to differentiate into multiple cell lineages in vitro. Therefore, PP cells are termed antler stem cells (AnSCs). Treatment of rats withfull-thickness cutaneous wounds (2 × 2 cm) through either direct injection of AnSCsinto the rats or topical application of conditioned medium of AnSCs on to the wounds can effectively induce regenerative wound healing. We believe our study has laid the foundations for developing an effective clinical therapy to achieve scar-less wound healing.

Mini Review; Differentiation of Human Pluripotent Stem Cells into Oocytes

2020 ◽  
Vol 15 (4) ◽  
pp. 301-307 ◽  
Author(s):  
Gaifang Wang ◽  
Maryam Farzaneh
Keyword(s):  
Stem Cells ◽  
Pluripotent Stem Cells ◽  
Embryonic Stem ◽  
Human Pluripotent Stem Cells ◽  
Human Oocyte ◽  
Differentiation Potential ◽  
Cell Lineages ◽  
Cell Based Therapy ◽  
Induced Pluripotent

Primary Ovarian Insufficiency (POI) is one of the main diseases causing female infertility that occurs in about 1% of women between 30-40 years of age. There are few effective methods for the treatment of women with POI. In the past few years, stem cell-based therapy as one of the most highly investigated new therapies has emerged as a promising strategy for the treatment of POI. Human pluripotent stem cells (hPSCs) can self-renew indefinitely and differentiate into any type of cell. Human Embryonic Stem Cells (hESCs) as a type of pluripotent stem cells are the most powerful candidate for the treatment of POI. Human-induced Pluripotent Stem Cells (hiPSCs) are derived from adult somatic cells by the treatment with exogenous defined factors to create an embryonic-like pluripotent state. Both hiPSCs and hESCs can proliferate and give rise to ectodermal, mesodermal, endodermal, and germ cell lineages. After ovarian stimulation, the number of available oocytes is limited and the yield of total oocytes with high quality is low. Therefore, a robust and reproducible in-vitro culture system that supports the differentiation of human oocytes from PSCs is necessary. Very few studies have focused on the derivation of oocyte-like cells from hiPSCs and the details of hPSCs differentiation into oocytes have not been fully investigated. Therefore, in this review, we focus on the differentiation potential of hPSCs into human oocyte-like cells.

scholarly journals Rapid Differentiation of Human Embryonic Stem Cells into Testosterone-Producing Leydig Cell-Like Cells In vitro

2021 ◽  
Author(s):  
Eun-Young Shin ◽  
Seah Park ◽  
Won Yun Choi ◽  
Dong Ryul Lee
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Human Embryonic Stem Cells ◽  
Embryonic Stem ◽  
Male Hypogonadism ◽  
Testosterone Levels ◽  
Sequence Of Events ◽  
Short Period ◽  
Molecular Compounds

Abstract Background: Leydig cells (LCs) are testicular somatic cells that are the major producers of testosterone in males. Testosterone is essential for male physiology and reproduction. Reduced testosterone levels lead to hypogonadism and are associated with diverse pathologies, such as neuronal dysfunction, cardiovascular disease, and metabolic syndrome. LC transplantation is a promising therapy for hypogonadism; however, the number of LCs in the testis is very rare and they do not proliferate in vitro. Therefore, there is a need for an alternative source of LCs. Methods: To develop a safer, simple, and rapid strategy to generate human LC-like cells (LLCs) from stem cells, we first performed preliminary tests under different conditions for the induction of LLCs from human CD34/CD73 double positive-testis-derived stem cells (HTSCs). Based on the embryological sequence of events, we suggested a 3-step strategy for the differentiation of human ESCs into LLCs. We generated the mesendoderm in the first stage and intermediate mesoderm (IM) in the second stage and optimized the conditions for differentiation of IM into LLCs by comparing the secreted testosterone levels of each group. Results: HTSCs and human embryonic stem cells can be directly differentiated into LLCs by defined molecular compounds within a short period. Human ESC-derived LLCs can secrete testosterone and express steroidogenic markers. Conclusion: We developed a rapid and efficient protocol for the production of LLCs from stem cells using defined molecular compounds. These findings provide a new therapeutic cell source for male hypogonadism.

scholarly journals Creation of Engineered Cardiac Tissue In Vitro From Mouse Embryonic Stem Cells

Circulation ◽  
2006 ◽  
Vol 113 (18) ◽  
pp. 2229-2237 ◽  
Author(s):  
Xi-Min Guo ◽  
Yun-Shan Zhao ◽  
Hai-Xia Chang ◽  
Chang-Yong Wang ◽  
Ling-Ling E ◽  
...  
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Cardiac Tissue ◽  
Embryonic Stem ◽  
Mouse Embryonic Stem Cells
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