ABSTRACT
BACKGROUND:With the development of the research, induced pluripotent stem cel s are applied to the build of disease model, drug screening, regenerative medicine, and many other research fields, and have made significant achievements, especial y in the study of nervous system diseases. OBJECTIVE:To summarize the recent development of induced pluripotent stem cel s and to raise problems and prospects based on the latest research in this field. METHODS:The first author searched the PubMed database for articles about the induced pluripotent stem cel s, including reviews, clinical research and basic research, published from January 2006 to September 2014. The keywords were“iPS, induced pluripotent stem cel”, and final y 60 articles were included in result analysis. RESULTS AND CONCLUSION:Induced pluripotent stem cel research continues to make breakthrough from its discovery by Yamanaka’s team in 2006 to winning Nobel Prize in 2012. Induced pluripotent stem cel research has broad prospects in the disease model construction, drug screening and regenerative medicine. Currently, problems such as reprogramming methods, cel stability, and clinical transformation stil need to be solved, and further researches are necessary.
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BACKGROUND:With the development of stem cel culture technology, stem cel transplantation has been a research hotspot in the biological cytology. OBJECTIVE:To review the current situation and progress of basic research on stem cel transplantation for human refractory diseases. METHODS:A computer-based search of CNKI, VIP, Wanfang and PubMed databases was performed for articles related to animal experiments of stem cel transplantation published from January 2008 to October 2014. The key words were“induced pluripotent stem cel s, neural stem cel s, top-up between stem cel s, transplantation”in Chinese and English in the title and abstract. Papers published in authoritative journals or recently were preferred. Total y 113 articles were searched initial y, and only 50 articles were included in result analysis. RESULTS AND CONCLUSION:With the progress of stem cel culture technology, basic research on the stem cel transplantation for human diseases have been promoted and carried out, and these researches have achieved phased outcomes that provide conditions for more extensive and in-depth fundamental research. It is believed that with the development of basic research on stem cel transplantation to solve a series of difficult problems, stem cel transplantation wil bring hope for treatment of human disease, especial y for treatment of refractory disease.
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10.3969/j.issn.2095-4344.2013.23.023
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BACKGROUND:Induced pluripotent stem cel s can bypass the ethical issues of embryonic stem cel s, and become the hotspot of stem cel research. OBJECTIVE:To explore the research progress and problems of induced pluripotent stem cel s. METHODS:A retrospective analysis on the findings, research progress and problems of induced pluripotent stem cel s in recent years was performed. The Thomson Reuters Web of Science was searched for the articles related to the induced pluripotent stem cel s and p53 gene. RESULTS AND CONCLUSION:In recent years, domestic and foreign scholars have conducted a lot of researches on induced pluripotent stem cel s. For example, a Japanese group is establishing the stem cel bank to provide a basis for the treatment of retinal diseases. However, the safety issues of induced pluripotent stem cel s need to be solved before routine cel treatment application, in which the functional research of related p53 gene is one of the essential concerns. The other member of p53 gene, p73 gene, also participates in the generation and differentiation of induced pluripotent stem cel s, and the in-depth studies are needed. The finding of p53 gene function wil promote the in-depth development of regenerative medicine and translational medicine.