期刊
CALCIFIED TISSUE INTERNATIONAL
卷 94, 期 1, 页码 46-54出版社
SPRINGER
DOI: 10.1007/s00223-013-9733-7
关键词
Bone formation; Cadherins; Cell-cell adhesion; Osteoblast differentiation; Wnt/beta-catenin signaling
资金
- European Commission [LSHM-CT-2003-503020, HEALTH-F2-2008-201099]
- United States National Institutes of Health [AR055913, AR056678]
- Societe Francaise de Rhumatologie
- Barnes-Jewish Foundation
- NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES [R01AR056678, R01AR055913] Funding Source: NIH RePORTER
Direct cell-to-cell interactions via cell adhesion molecules, in particular cadherins, are critical for morphogenesis, tissue architecture, and cell sorting and differentiation. Partially overlapping, yet distinct roles of N-cadherin (cadherin-2) and cadherin-11 in the skeletal system have emerged from mouse genetics and in vitro studies. Both cadherins are important for precursor commitment to the osteogenic lineage, and genetic ablation of Cdh2 and Cdh11 results in skeletal growth defects and impaired bone formation. While Cdh11 defines the osteogenic lineage, persistence of Cdh2 in osteoblasts in vivo actually inhibits their terminal differentiation and impairs bone formation. The action of cadherins involves both cell-cell adhesion and interference with intracellular signaling, and in particular the Wnt/beta-catenin pathway. Both cadherin-2 and cadherin-11 bind to beta-catenin, thus modulating its cytoplasmic pools and transcriptional activity. Recent data demonstrate that cadherin-2 also interferes with Lrp5/6 signaling by sequestering these receptors in inactive pools via axin binding. These data extend the biologic action of cadherins in bone forming cells, and provide novel mechanisms for development of therapeutic strategies aimed at enhancing bone formation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据