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Suomi S, Taipaleenmäki H, Seppänen A, et al. MicroRNAs regulate osteogenesis and chondrogenesis of mouse bone marrow stromal cells. Gene Regul Syst Bio. 2008;2:177-91doi: 10.4137/grsb.s662.
Suomi, S., Taipaleenmäki, H., Seppänen, A., Ripatti, T., Väänänen, K., Hentunen, T., Säämänen, A. M., & Laitala-Leinonen, T. (2008). MicroRNAs regulate osteogenesis and chondrogenesis of mouse bone marrow stromal cells. Gene regulation and systems biology, 2177-91. https://doi.org/10.4137/grsb.s662
Suomi, Salla, et al. "MicroRNAs regulate osteogenesis and chondrogenesis of mouse bone marrow stromal cells." Gene regulation and systems biology vol. 2 (2008): 177-91. doi: https://doi.org/10.4137/grsb.s662
Suomi S, Taipaleenmäki H, Seppänen A, Ripatti T, Väänänen K, Hentunen T, Säämänen AM, Laitala-Leinonen T. MicroRNAs regulate osteogenesis and chondrogenesis of mouse bone marrow stromal cells. Gene Regul Syst Bio. 2008 Apr 22;2:177-91. doi: 10.4137/grsb.s662. PMID: 19787082; PMCID: PMC2733092.
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Gene Regul Syst Bio. 2008 Apr 22;2:177-91. doi: 10.4137/grsb.s662.

MicroRNAs regulate osteogenesis and chondrogenesis of mouse bone marrow stromal cells.

Gene regulation and systems biology

Salla Suomi, Hanna Taipaleenmäki, Anne Seppänen, Tommi Ripatti, Kalervo Väänänen, Teuvo Hentunen, Anna-Marja Säämänen, Tiina Laitala-Leinonen

Affiliations

  1. Bone Biology Research Consortium, Department of Anatomy, Institute of Biomedicine, University of Turku, FI-20520, Finland. [email protected]

PMID: 19787082 PMCID: PMC2733092 DOI: 10.4137/grsb.s662

Abstract

MicroRNAs (miRNAs) are non-coding RNAs that bind to target mRNA leading to translational arrest or mRNA degradation. To study miRNA-mediated regulation of osteogenesis and chondrogenesis, we compared the expression of 35 miRNAs in osteoblasts and chondroblasts derived from mouse marrow stromal cells (MSCs). Differentiation of MSCs resulted in up- or downregulation of several miRNAs, with miR-199a expression being over 10-fold higher in chondroblasts than in undifferentiated MSCs. In addition, miR-124a was strongly upregulated during chondrogenesis while the expression of miR-96 was substantially suppressed. A systems biological analysis of the potential miRNA target genes and their interaction networks was combined with promoter analysis. These studies link the differentially expressed miRNAs to collagen synthesis and hypoxia, key pathways related to bone and cartilage physiology. The global regulatory networks described here suggest for the first time how miRNAs and transcription factors are capable of fine-tuning the osteogenic and chondrogenic differentiation of mouse MSCs.

Keywords: chondrogenesis; marrow stromal cells; microRNA; osteogenesis

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