Essential roles for the Tec family kinases Tec and Btk in M-CSF receptor signaling pathways that regulate macrophage survival.
Essential roles for the Tec family kinases Tec and Btk in M-CSF receptor signaling pathways that regulate macrophage survival.
复制标题
DOI:
10.4049/jimmunol.180.12.8048
复制
发表时间:
2008-06-15
期刊:
影响因子:
--
通讯作者:
Ellmeier W
中科院分区:
文献类型:
--
作者:
Melcher M;Unger B;Schmidt U;Rajantie IA;Alitalo K;Ellmeier W
Tec family kinases have important roles in lymphocytes, however little is known about their function in monocytes/macrophages. Here we report that Tec family kinases are essential for macrophage colony stimulating factor (M-CSF)-induced signaling pathways that regulate macrophage survival. Compared to wildtype bone marrow-derived macrophages (BMM) cultures, Tec−/−Btk−/− BMM cultures displayed increased cell death that correlated with a severe drop in macrophage numbers. In addition, macrophages deficient in either Tec or Btk showed expression and activation of caspase-11. Elucidation of M-CSF receptor (M-CSFR) signaling pathways revealed that the total tyrosine phosphorylation pattern upon M-CSF stimulation was altered in Tec−/−Btk−/− macrophages despite normal expression and phosphorylation of the M-CSFR. Further, Tec and Btk are required for proper expression of GM-CSF receptor alpha (GM-CSFRα) chain in macrophages but not dendritic cells, implicating Tec family kinases in the lineage-specific regulation of GM-CSFRα expression. Taken together, our study shows that Tec and Btk regulate M-CSFR signaling-induced macrophage survival and provides a novel link between Tec family kinases and the regulation of caspase-11 and GM-CSFRα expression.
登录
查看更多内容
影响因子:
20.3
作者:
Mangla, A;Khare, A;Rath, S
通讯作者:
Rath, S
DOI:
10.1016/s0169-328x(01)00058-4
发表时间:
2001-04-18
期刊:
MOLECULAR BRAIN RESEARCH
影响因子:
--
作者:
Harrison, DC;Davis, RP;Philpott, KL
通讯作者:
Philpott, KL
影响因子:
2.2
作者:
Lutz, MB;Kukutsch, N;Schuler, G
通讯作者:
Schuler, G
影响因子:
20.3
作者:
Dai, XM;Ryan, GR;Stanley, ER
通讯作者:
Stanley, ER
DOI:
10.1084/jem.20021845
发表时间:
2003-06-16
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Horwood NJ;Mahon T;McDaid JP;Campbell J;Mano H;Brennan FM;Webster D;Foxwell BM
通讯作者:
Foxwell BM