PDGF-AA promotes osteogenic differentiation and migration of mesenchymal stem cell by down-regulating PDGFRα and derepressing BMP-Smad1/5/8 signaling.

PDGF-AA promotes osteogenic differentiation and migration of mesenchymal stem cell by down-regulating PDGFRα and derepressing BMP-Smad1/5/8 signaling.
复制标题

DOI:
10.1371/journal.pone.0113785
复制
发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Li B
Li B
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Li A;Xia X;Yeh J;Kua H;Liu H;Mishina Y;Hao A;Li B

文献摘要

参考文献

被引文献

相似文献

血小板衍生生长因子(PDGFs)在骨骼发育和骨折愈合中发挥重要作用,但PDGFs如何发挥其功能仍不完全清楚。在这里,我们发现PDGF-AA,而不是-AB或-BB,可以激活间充质干细胞(MSCs)中的BMP-Smad1/5/8通路,这需要BMPRIA和PDGFRα。PDGF-AA通过BMP-Smad1/5/8-Runx2/Osx轴促进MSC成骨分化,并通过BMP-Smad1/5/8-Twist1/Atf4轴促进MSC迁移。机制研究表明,PDGF-AA通过反馈下调PDGFRα激活BMP- smad1/5/8信号,释放BMPRI,并允许BMPRI- bmprii复合物形成,利用微环境中的BMP分子激活smad1/5/8。本研究揭示了PDGFRα和BMPRI之间的物理和功能相互作用,该相互作用在MSC分化和迁移中起重要作用,并建立了PDGF-AA和BMPs途径之间的联系,这是胚胎发育和组织稳态的两个重要调节因子。
Platelet-derived growth factors (PDGFs) play important roles in skeletal development and bone fracture healing, yet how PDGFs execute their functions remains incompletely understood. Here we show that PDGF-AA, but not -AB or -BB, could activate the BMP-Smad1/5/8 pathway in mesenchymal stem cells (MSCs), which requires BMPRIA as well as PDGFRα. PDGF-AA promotes MSC osteogenic differentiation through the BMP-Smad1/5/8-Runx2/Osx axis and MSC migration via the BMP-Smad1/5/8-Twist1/Atf4 axis. Mechanistic studies show that PDGF-AA activates BMP-Smad1/5/8 signaling by feedback down-regulating PDGFRα, which frees BMPRI and allows for BMPRI-BMPRII complex formation to activate smad1/5/8, using BMP molecules in the microenvironment. This study unravels a physical and functional interaction between PDGFRα and BMPRI, which plays an important role in MSC differentiation and migration, and establishes a link between PDGF-AA and BMPs pathways, two essential regulators of embryonic development and tissue homeostasis.
DOI: 10.1016/j.cytogfr.2009.10.017
发表时间: 2009-10
影响因子: 13
作者:
Eivers, Edward;Demagny, Hadrien;De Robertis, E. M.
通讯作者: De Robertis, E. M.
骨形态发生蛋白 Smad1 信号在 DNA 损伤反应中的关键作用
DOI: 10.1038/ncomms1832
发表时间: 2012-05-01
影响因子: 16.6
作者:
Chau, Jenny Fung Ling;Jia, Deyong;Li, Baojie
通讯作者: Li, Baojie
DOI: 10.2741/4090
发表时间: 2013-01-01
影响因子: 3.1
作者:
Donovan, Johanna;Abraham, David;Norman, Jill
通讯作者: Norman, Jill
DOI: 10.1210/en.134.3.1423
发表时间: 1994-03-01
期刊: ENDOCRINOLOGY
影响因子: 4.8
作者:
HOCK, JM;CANALIS, E
通讯作者: CANALIS, E
DOI: 10.1101/gad.238709.114
发表时间: 2014-05-01
影响因子: 10.5
作者:
Fantauzzo KA;Soriano P
通讯作者: Soriano P