Current advances in the generation of human iPS cells: implications in cell-based regenerative medicine

2015 ◽  
Vol 10 (11) ◽  
pp. 893-907 ◽  
Author(s):  
Ana Revilla ◽  
Clara González ◽  
Amaia Iriondo ◽  
Bárbara Fernández ◽  
Cristina Prieto ◽  
...  
2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Toru Egashira ◽  
Shinsuke Yuasa ◽  
Keiichi Fukuda

Induced pluripotent stem (iPS) cells are generated by reprogramming human somatic cells through the forced expression of several embryonic stem (ES) cell-specific transcription factors. The potential of iPS cells is having a significant impact on regenerative medicine, with the promise of infinite self-renewal, differentiation into multiple cell types, and no problems concerning ethics or immunological rejection. Human iPS cells are currently generated by transgene introduction principally through viral vectors, which integrate into host genomes, although the associated risk of tumorigenesis is driving research into nonintegration methods. Techniques for pluripotent stem cell differentiation and purification to yield cardiomyocytes are also advancing constantly. Although there remain some unsolved problems, cardiomyocyte transplantation may be a reality in the future. After those problems will be solved, applications of human iPS cells in human cardiovascular regenerative medicine will be envisaged for the future. Furthermore, iPS cell technology has generated new human disease models using disease-specific cells. This paper summarizes the progress of iPS cell technology in cardiovascular research.


Author(s):  
Kasai T ◽  
Suga H ◽  
Sakakibara   ◽  
Ozone C ◽  
Matsumoto R ◽  
...  
Keyword(s):  

2013 ◽  
Vol 141 (1) ◽  
pp. 32-36
Author(s):  
Yasunari Kanda

PLoS ONE ◽  
2013 ◽  
Vol 8 (1) ◽  
pp. e53771 ◽  
Author(s):  
Akira Nasu ◽  
Makoto Ikeya ◽  
Takuya Yamamoto ◽  
Akira Watanabe ◽  
Yonghui Jin ◽  
...  

2011 ◽  
Vol 121 (6) ◽  
pp. 2326-2335 ◽  
Author(s):  
Yong-Hee Rhee ◽  
Ji-Yun Ko ◽  
Mi-Yoon Chang ◽  
Sang-Hoon Yi ◽  
Dohoon Kim ◽  
...  

2021 ◽  
Vol 43 (3) ◽  
pp. 2124-2134
Author(s):  
Hyun Soo Lee ◽  
Jeewon Mok ◽  
Choun-Ki Joo

Corneal epithelium maintains visual acuity and is regenerated by the proliferation and differentiation of limbal progenitor cells. Transplantation of human limbal progenitor cells could restore the integrity and functionality of the corneal surface in patients with limbal stem cell deficiency. However, multiple protocols are employed to differentiate human induced pluripotent stem (iPS) cells into corneal epithelium or limbal progenitor cells. The aim of this study was to optimize a protocol that uses bone morphogenetic protein 4 (BMP4) and limbal cell-specific medium. Human dermal fibroblast-derived iPS cells were differentiated into limbal progenitor cells using limbal cell-specific (PI) medium and varying doses (1, 10, and 50 ng/mL) and durations (1, 3, and 10 days) of BMP4 treatment. Differentiated human iPS cells were analyzed by real-time polymerase chain reaction (RT-PCR), Western blotting, and immunocytochemical studies at 2 or 4 weeks after BMP4 treatment. Culturing human dermal fibroblast-derived iPS cells in limbal cell-specific medium and BMP4 gave rise to limbal progenitor and corneal epithelial-like cells. The optimal protocol of 10 ng/mL and three days of BMP4 treatment elicited significantly higher limbal progenitor marker (ABCG2, ∆Np63α) expression and less corneal epithelial cell marker (CK3, CK12) expression than the other combinations of BMP4 dose and duration. In conclusion, this study identified a successful reprogramming strategy to induce limbal progenitor cells from human iPS cells using limbal cell-specific medium and BMP4. Additionally, our experiments indicate that the optimal BMP4 dose and duration favor limbal progenitor cell differentiation over corneal epithelial cells and maintain the phenotype of limbal stem cells. These findings contribute to the development of therapies for limbal stem cell deficiency disorders.


2009 ◽  
Vol 54 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Chun Cui ◽  
LingJun Rao ◽  
LinZhao Cheng ◽  
Lei Xiao
Keyword(s):  

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