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Collagen gene expression during chondrogenesis from chick periosteum‐derived cells
Author(s) -
Nakata Ken,
Nakahara Haruhiko,
Kimura Tomoatsu,
Kojima Akira,
Iwasaki Motoki,
Caplan Arnold I.,
Ono Keiro
Publication year - 1992
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(92)80131-y
Subject(s) - chondrogenesis , periosteum , mesenchymal stem cell , microbiology and biotechnology , cartilage , aggrecan , gene expression , messenger rna , chemistry , cell culture , anatomy , biology , gene , pathology , medicine , osteoarthritis , genetics , biochemistry , articular cartilage , alternative medicine
Chick periosteum‐derived cells, which do not enter the chondrogenic cell lineage during normal bone development and growth, exhibit chondrogenic potential in high cell density culture conditions. In such cultures, collagen gene expression was temporally analyzed at the mRNA level by a reverse transcription PCR (RT‐PCR) procedure, which showed that α1(II) and α1(IX) collagen mRNAs are coordinately increased, coincident with the onset of overt chondrogenesis, and subsequently decreased as chondrocytes exhibited hypertrophic characteristics. α1(X) collagen mRNA was detected well before the onset of chondrogenesis and markedly increased along with the hypertrophic change. For α2(I) collagen, both the bone/tendon form and the cartilage form of mRNA were detected throughout the culture period. This culture system provides an experimental vehicle capable of investigating the molecular events involved in the full range of chondrogenic differentiation starting from uncommitted periosteum‐derived mesenchymal stem cells.