The Src-like Adaptor Protein 2 Regulates Colony-stimulating Factor-1 Receptor Signaling and Down-regulation*
The Src-like Adaptor Protein 2 Regulates Colony-stimulating Factor-1 Receptor Signaling and Down-regulation*
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Src 样接头蛋白 2 调节集落刺激因子 1 受体信号传导和下调*
DOI:
10.1074/jbc.m701182200
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发表时间:
2007
影响因子:
4.8
通讯作者:
C. McGlade
中科院分区:
文献类型:
--
作者:
B. Pakuts;C. Debonneville;Larissa Liontos;Michael P. Loreto;C. McGlade
Src-like adaptor protein 2 (SLAP-2) is a hematopoietic adaptor protein previously implicated as a negative regulator of T-cell antigen receptor (TCR)-mediated signaling. SLAP-2 contains an SH3 and an SH2 domain, followed by a unique carboxyl-terminal tail, which is important for c-Cbl binding. Here we describe a novel role for SLAP-2 in regulation of the colony-stimulating factor 1 receptor (CSF-1R), a receptor tyrosine kinase important for growth and differentiation of myeloid cells. SLAP-2 co-immunoprecipitates with c-Cbl and CSF-1R in primary bone marrow-derived macrophages. Using murine myeloid cells expressing CSF-1R (FD-Fms cells), we show that SLAP-2 is tyrosine-phosphorylated upon stimulation with CSF-1 and associates constitutively with both c-Cbl and CSF-1R. In addition, we show that expression of a dominant negative form of SLAP-2 impairs c-Cbl association with the CSF-1R and receptor ubiquitination. Impaired c-Cbl recruitment also correlated with changes in the kinetics of CSF-1R down-regulation and trafficking. CSF-1-mediated differentiation of FD-Fms cells and activation of downstream signaling events was also enhanced in cells stably expressing dominant negative SLAP-2. Together, these results demonstrate that SLAP-2 plays a role in c-Cbl-dependent down-regulation of CSF-1R signaling.
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DOI:
--
发表时间:
1986-03
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
L. Guilbert;E. Stanley
通讯作者:
L. Guilbert;E. Stanley
DOI:
10.1096/fasebj.12.1.35
发表时间:
1998
期刊:
FASEB journal : official publication of the Federation of American Societies for Experimental Biology
影响因子:
--
作者:
D. Mochly‐Rosen;A. Gordon
通讯作者:
D. Mochly‐Rosen;A. Gordon
DOI:
--
发表时间:
1995
期刊:
Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research.
影响因子:
--
作者:
Bourette,RP;Myles,GM;Carlberg,K;Chen,AR;Rohrschneider,LR
通讯作者:
Rohrschneider,LR
影响因子:
2.4
作者:
Wang, Zheng;Liang, Yanni;Liu, Li
通讯作者:
Liu, Li
影响因子:
56.9
作者:
Joazeiro, CAP;Wing, SS;Liu, YC
通讯作者:
Liu, YC