The Mohawk homeobox gene is a critical regulator of tendon differentiation

被引:234
作者
Ito, Yoshiaki [1 ]
Toriuchi, Naoya [1 ]
Yoshitaka, Teruhito [1 ]
Ueno-Kudoh, Hiroe [1 ]
Sato, Tempei [1 ]
Yokoyama, Shigetoshi [1 ]
Nishida, Keiichiro [2 ]
Akimoto, Takayuki [3 ]
Takahashi, Michiko [1 ]
Miyaki, Shigeru [1 ]
Asahara, Hiroshi [1 ]
机构
[1] Natl Res Inst Child Hlth & Dev, Dept Syst BioMed, Tokyo 1578535, Japan
[2] Okayama Univ, Grad Sch Med & Dent, Dept Human Morphol Sci Funct Recovery & Reconstru, Okayama 7008558, Japan
[3] Univ Tokyo, Grad Sch Med, Ctr Dis Biol & Integrat Med, Lab Regenerat Med Engn, Tokyo 1130033, Japan
基金
日本科学技术振兴机构;
关键词
COLLAGEN FIBRIL; SKIN FRAGILITY; DEFICIENT MICE; EXPRESSION; SCLERAXIS; MOUSE; CELL; IDENTIFICATION; PROLIFERATION; MORPHOGENESIS;
D O I
10.1073/pnas.1000525107
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Mohawk(Mkx) is a member of the Three Amino acid Loop Extension superclass of atypical homeobox genes that is expressed in developing tendons. To investigate the in vivo functions of Mkx, we generated Mkx(-/-) mice. These mice had hypoplastic tendons throughout the body. Despite the reduction in tendon mass, the cell number in tail tendon fiber bundles was similar between wild-type and Mkx(-/-) mice. We also observed small collagen fibril diameters and a down-regulation of type I collagen in Mkx(-/-) tendons. These data indicate that Mkx plays a critical role in tendon differentiation by regulating type I collagen production in tendon cells.
引用
收藏
页码:10538 / 10542
页数:5
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