T cell-expressed CD40L potentiates the bone anabolic activity of intermittent PTH treatment.
T cell-expressed CD40L potentiates the bone anabolic activity of intermittent PTH treatment.
复制标题
DOI:
10.1002/jbmr.2394
复制
发表时间:
2015-04
影响因子:
6.2
通讯作者:
Pacifici, Roberto
中科院分区:
文献类型:
--
作者:
Robinson, Jerid W.;Li, Jau-Yi;Walker, Lindsey D.;Tyagi, Abdul Malik;Reott, Michael A.;Yu, Mingcan;Adams, Jonathan;Weitzmann, M. Neale;Pacifici, Roberto
T cells are known to potentiate the bone anabolic activity of intermittent parathyroid hormone (iPTH) treatment. One of the involved mechanisms is increased T cell secretion of Wnt10b, a potent osteogenic Wnt ligand that activates Wnt signaling in stromal cells (SCs). However, additional mechanisms might play a role, including direct interactions between surface receptors expressed by T cells and SCs. Here we show that iPTH failed to promote SC proliferation and differentiation into osteoblasts (OBs) and activate Wnt signaling in SCs of mice with a global or T cell-specific deletion of the T cell costimulatory molecule CD40 ligand (CD40L). Attesting to the relevance of T cell expressed CD40L, iPTH induced a blunted increase in bone formation and failed to increase trabecular bone volume in CD40L−/− mice and mice with a T cell-specific deletion of CD40L. CD40L null mice exhibited a blunted increase in T cell production of Wnt10b and abrogated CD40 signaling in SCs in response to iPTH treatment. Therefore, expression of the T cell surface receptor CD40L enables iPTH to exert its bone anabolic activity by activating CD40 signaling in SCs and maximally stimulating T cell production of Wnt10b.
登录
查看更多内容
影响因子:
4.8
作者:
Dobnig, H;Turner, RT
通讯作者:
Turner, RT
影响因子:
15.9
作者:
Jilka, RL;Weinstein, RS;Manolagas, SC
通讯作者:
Manolagas, SC
影响因子:
8.2
作者:
Bodine, Peter V. N.;Komm, Barry S.
通讯作者:
Komm, Barry S.
DOI:
10.1073/pnas.1315153111
发表时间:
2014-01-28
影响因子:
11.1
作者:
Cho, Sun Wook;Soki, Fabiana N.;McCauley, Laurie K.
通讯作者:
McCauley, Laurie K.
影响因子:
20.3
作者:
Granziero, L;Ghia, P;Caligaris-Cappio, F
通讯作者:
Caligaris-Cappio, F