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Open Access MicroRNAs Regulation Modulated Self-Renewal and Lineage Differentiation of Stem Cells

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Abstract:

Stem cells are unique cells in the ability that can self-renew and differentiate into a wide variety of cell types, suggesting that a specific molecular control network underlies these features. To date, stem cells have been applied to many clinical therapeutic approaches. For example, hematopoietic stem cells (HSCs) and mesenchymal stem cells (MSCs) are the cells responding to ischemia or injury and engage in effective revascularization to repair within impairment regions. Transplantation of MSCs after stroke and hindlimb ischemia results in remarkable recovery through enhancing angiogenesis. MicroRNAs are a novel class of endogenous, small, noncoding RNAs that work via translational inhibition or degradation of their target mRNAs to downregulate gene expression. MicroRNAs have been strongly linked to stem cells, which have a remarkable role in development. In this study, we focused on the microRNA regulation in multiple stem cells. For example, miR-520h was upregulated and miR-129 was downregulated in HSC. MiR-103, 107, 140, 143, 638, and 663 were associated with MSCs while miR-302s and miR-136 were associated with ESCs. In NSCs, miR-92b, let-7, and miR-125 were the critical regulators. This overview of the recent advances in the aspects of molecular control of stem cell biology reveals the importance of microRNAs, which may be helpful for future work.

Keywords: MicroRNAs; Posttranscriptional regulation; Stem cells

Document Type: Research Article

DOI: http://dx.doi.org/10.3727/096368909X471224

Affiliations: Center for Neuropsychiatry, China Medical University and Hospital, Taichung, Taiwan; Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan

Publication date: September 1, 2009

More about this publication?
  • Cell Transplantation publishes original, peer-reviewed research and review articles on the subject of cell transplantation and its application to human diseases. To ensure high-quality contributions from all areas of transplantation, separate section editors and editorial boards have been established. Articles deal with a wide range of topics including physiological, medical, preclinical, tissue engineering, and device-oriented aspects of transplantation of nervous system, endocrine, growth factor-secreting, bone marrow, epithelial, endothelial, and genetically engineered cells, among others. Basic clinical studies and immunological research papers are also featured. To provide complete coverage of this revolutionary field, Cell Transplantation will report on relevant technological advances, and ethical and regulatory considerations of cell transplants. Cell Transplantation is now an Open Access journal starting with volume 18 in 2009, and therefore there will be an inexpensive publication charge, which is dependent on the number of pages, in addition to the charge for color figures. This will allow work to be disseminated to a wider audience and also entitle the corresponding author to a free PDF, as well as prepublication of an unedited version of the manuscript.
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