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Specific microRNA expression during chondrogenesis of human mesenchymal stem cells

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Mesenchymal stem cells (MSCs) have the capacity to self-renew and differentiate into multiple cell types, but little is known about the precise mechanism of this procedure. Recent studies show that a group of short noncoding RNAs called microRNAs (miRNAs) play a key role in this procedure. However, little work has been done to determine the miRNAs which specifically regulate the differentiation of MSCs. In this study, we cultured human MSCs and chondrogenic differentiation MSCs of 3 donors, and investigated the miRNA expression profiles of MSCs and chondrogenic differentiated MSCs from 2 donors by using miRNA microarrays. We found 5 miRNAs were significantly overexpressed in chondrogenic differentiated MSCs in each sample, and 4 were further confirmed by real-time RT-PCR assay in the sample from the third independent donor. We also predicted the confirmed miRNAs corresponding to putative target genes by online software. The results indicated that the overexpressed miRNAs in chondrogenic differentiated MSCs may play a role in the procedure of MSC chondrogenesis, which offers us guidance for further studies.
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Document Type: Research Article

Affiliations: Department of Orthopedic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China

Publication date: January 1, 2010

More about this publication?
  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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