BMP Signaling Mediated by BMPR1A in Osteoclasts Negatively Regulates Osteoblast Mineralization Through Suppression of Cx43.

BMP Signaling Mediated by BMPR1A in Osteoclasts Negatively Regulates Osteoblast Mineralization Through Suppression of Cx43.
复制标题

破骨细胞中 BMPR1A 介导的 BMP 信号通过抑制 Cx43 负向调节成骨细胞矿化

DOI:
10.1002/jcb.25746
复制
发表时间:
2017-03
影响因子:
4
通讯作者:
Sun H
Sun H
中科院分区:
生物学2区
文献类型:
--
作者:
Shi C;Zhang H;Louie K;Mishina Y;Sun H

文献摘要

参考文献

被引文献

相似文献

在骨重塑过程中,成骨细胞和破骨细胞通过不同的通讯机制得到良好的协调。此前,我们发现骨形态发生蛋白受体之一Bmpr1a在破骨细胞中的特异性缺失会导致小鼠成骨细胞的骨形成增加。我们假设破骨细胞中的BMPR1A信号传导调节膜结合蛋白或分泌分子的产生,这些分子调节成骨细胞的分化。在我们目前的研究中,我们将野生型成骨细胞与对照破骨细胞或缺乏BMPR1A信号传导活性的破骨细胞进行共培养。我们发现破骨细胞中Bmpr1a的缺失在体外促进了成骨细胞的矿化。此外,我们发现突变破骨细胞中Cx43/Gja1的表达增加,它编码一种间隙连接蛋白连接蛋白43/间隙连接蛋白α1。当共培养时,在Bmpr1a突变破骨细胞中敲低Gja1会减少成骨细胞的矿化。我们的研究结果表明,GJA1可能是破骨细胞中BMPR1A信号传导的下游靶点之一,在骨重塑过程中介导破骨细胞 - 成骨细胞的通讯。
Osteoblasts and osteoclasts are well orchestrated through different mechanisms of communication during bone remodeling. Previously, we found that osteoclast-specific disruption of one of the BMP receptors, Bmpr1a, results in increased osteoblastic bone formation in mice. We hypothesized that BMPR1A signaling in osteoclasts regulates production of either membrane bound proteins or secreted molecules that regulated osteoblast differentiation. In our current study, we co-cultured wild-type osteoblasts with either control osteoclasts or osteoclasts lacking BMPR1A signaling activity. We found that loss of Bmpr1a in osteoclasts promoted osteoblast mineralization in vitro. Further, we found that the expression of Cx43/Gja1 in the mutant osteoclasts was increased, which encoded for one of the gap junction proteins connexin 43/gap junction alpha 1. Knockdown of Gja1 in the mutant osteoclasts for Bmpr1a reduced osteoblastic mineralization when co-cultured. Our findings suggest that GJA1 may be one of the downstream targets of BMPR1A signaling in osteoclasts that mediates osteoclast-osteoblast communication during bone remodeling.
DOI: 10.1186/1478-811x-7-4
发表时间: 2009-03-12
期刊: Cell communication and signaling : CCS
影响因子: --
作者:
Dbouk HA;Mroue RM;El-Sabban ME;Talhouk RS
通讯作者: Talhouk RS
DOI: 10.1007/s00223-014-9864-5
发表时间: 2014-07
影响因子: 4.2
作者:
Hobolt-Pedersen, Anne-Sofie;Delaisse, Jean-Marie;Soe, Kent
通讯作者: Soe, Kent
DOI: 10.1093/molehr/gau001
发表时间: 2014-05-01
影响因子: 4
作者:
Chang, Hsun-Ming;Cheng, Jung-Chien;Leung, Peter C. K.
通讯作者: Leung, Peter C. K.
DOI: 10.1002/jbmr.548
发表时间: 2012-02
影响因子: 6.2
作者:
Bivi, Nicoletta;Condon, Keith W.;Allen, Matthew R.;Farlow, Nathan;Passeri, Giovanni;Brun, Lucas R.;Rhee, Yumie;Bellido, Teresita;Plotkin, Lilian I.
通讯作者: Plotkin, Lilian I.
DOI: 10.1016/j.bone.2011.08.003
发表时间: 2011-11-01
期刊: BONE
影响因子: 4.1
作者:
Atanga, Elvis;Dolder, Silvia;Hofstetter, Willy
通讯作者: Hofstetter, Willy