β-catenin activity in late hypertrophic chondrocytes locally orchestrates osteoblastogenesis and osteoclastogenesis.
β-catenin activity in late hypertrophic chondrocytes locally orchestrates osteoblastogenesis and osteoclastogenesis.
复制标题
DOI:
10.1242/dev.137489
复制
发表时间:
2016-10-15
期刊:
影响因子:
--
通讯作者:
Hartmann C
中科院分区:
文献类型:
--
作者:
Houben A;Kostanova-Poliakova D;Weissenböck M;Graf J;Teufel S;von der Mark K;Hartmann C
Trabecular bone formation is the last step in endochondral ossification. This remodeling process of cartilage into bone involves blood vessel invasion and removal of hypertrophic chondrocytes (HTCs) by chondroclasts and osteoclasts. Periosteal- and chondrocyte-derived osteoprogenitors utilize the leftover mineralized HTC matrix as a scaffold for primary spongiosa formation. Here, we show genetically that β-catenin (encoded by Ctnnb1), a key component of the canonical Wnt pathway, orchestrates this remodeling process at multiple levels. Conditional inactivation or stabilization of β-catenin in HTCs by a Col10a1-Cre line locally modulated osteoclastogenesis by altering the Rankl:Opg ratio in HTCs. Lack of β-catenin resulted in a severe decrease of trabecular bone in the embryonic long bones. Gain of β-catenin activity interfered with removal of late HTCs and bone marrow formation, leading to a continuous mineralized hypertrophic core in the embryo and resulting in an osteopetrotic-like phenotype in adult mice. Furthermore, β-catenin activity in late HTCs is required for chondrocyte-derived osteoblastogenesis at the chondro-osseous junction. The latter contributes to the severe trabecular bone phenotype in mutants lacking β-catenin activity in HTCs. Summary: The conditional modulation of β-catenin activity in late hypertrophic chondrocytes locally regulates osteoclast differentiation and the transdifferentiation of chondrocytes into osteoblasts.
登录
查看更多内容
影响因子:
64.8
作者:
Hanada, Reiko;Leibbrandt, Andreas;Penninger, Josef M.
通讯作者:
Penninger, Josef M.
DOI:
10.1016/j.matbio.2008.07.001
发表时间:
2008-10
期刊:
Matrix biology : journal of the International Society for Matrix Biology
影响因子:
--
作者:
Gebhard S;Hattori T;Bauer E;Schlund B;Bösl MR;de Crombrugghe B;von der Mark K
通讯作者:
von der Mark K
影响因子:
9.3
作者:
Gerber, HP;Ferrara, N
通讯作者:
Ferrara, N
DOI:
10.1161/01.atv.0000236428.91125.e6
发表时间:
2006-09-01
影响因子:
8.7
作者:
Bennett, Brian J.;Scatena, Marta;Rosenfeld, Michael E.
通讯作者:
Rosenfeld, Michael E.
影响因子:
6.2
作者:
Gambardella, Alessandra;Nagaraju, Chandan K.;Bellantuono, Ilaria
通讯作者:
Bellantuono, Ilaria