Abstract:
:The process of endochondral ossification is strictly regulated by a variety of extracellular and intracellular factors. Recently, it has become recognized that specific miRNAs are involved in this process by regulating the expression of the relevant genes at the post-transcriptional level. In this present study we obtained the first evidence of the involvement of a specific micro RNA (miRNA) in the regulation of the chondrocyte phenotype during late stages of differentiation. By use of the microarray technique, miR-1 was identified as this miRNA, the expression of which was most repressed upon hypertrophic differentiation. Transfection of human chondrocytic HCS-2/8 cells and chicken normal chondrocytes with miR-1 led to repressed expression of aggrecan, the major cartilaginous proteoglycan gene. Therefore, miR-1 was found to be involved in the regulation of the chondrocytic phenotype and thus to play an important role in chondrocytes during the late stage of the differentiation process, maintaining the integrity of the cartilage tissue.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Sumiyoshi K,Kubota S,Ohgawara T,Kawata K,Nishida T,Shimo T,Yamashiro T,Takigawa Mdoi
10.1016/j.bbrc.2010.10.016subject
Has Abstractpub_date
2010-11-12 00:00:00pages
286-90issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(10)01867-Xjournal_volume
402pub_type
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