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2015 Fiscal Year Final Research Report

Elucidation of pathogenic mechanism of arthrogryposis multiplex congenita by Ctdnep1 gene deficiency

Research Project

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Project/Area Number 25462287
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Orthopaedic surgery
Research InstitutionUniversity of Tsukuba (2015)
Tokyo Medical and Dental University (2013)

Principal Investigator

Hayata Tadayoshi  筑波大学, 医学医療系, 准教授 (40420252)

Project Period (FY) 2013-04-01 – 2016-03-31
KeywordsBMP / TGF-β / 筋肉 / 軟骨
Outline of Final Research Achievements

In order to investigate the role of Ctdnep1 for musculoskeletal and joint development, we generated limb- and sternum-specific knockout mice (Ctdnep1 cKO). Ctdnep1 cKO mice showed joint contracture and impaired walking. Histological analysis showed that joint structure was formed normally, but development of muscle fiber was severely affected and chondrocytes of proximal femur proliferated abnormally. Cell culture experiments showed that TGF-β signaling was increased and BMP signaling was decreased in the absence of Ctdnep1. These results suggest that Ctdnep1 maintain BMP signaling by suppressing TGF-β signaling in muscle system and plays crucial role in muscle development.

Free Research Field

骨・軟骨代謝学

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Published: 2017-05-10  

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