Inactivation of c-Cbl reverses neonatal lethality and T cell developmental arrest of SLP-76-deficient mice.
Inactivation of c-Cbl reverses neonatal lethality and T cell developmental arrest of SLP-76-deficient mice.
复制标题
DOI:
10.1084/jem.20040262
复制
发表时间:
2004-07-05
影响因子:
15.3
通讯作者:
Hodes, RJ
中科院分区:
文献类型:
--
作者:
Chiang, YJ;Sommers, CL;Jordan, MS;Gu, H;Samelson, LE;Koretzky, GA;Hodes, RJ
c-Cbl is an adaptor protein that negatively regulates signal transduction events involved in thymic-positive selection. To further characterize the function of c-Cbl in T cell development, we analyzed the effect of c-Cbl inactivation in mice deficient in the scaffolding molecule SLP-76. SLP-76–deficient mice show a high frequency of neonatal lethality; and in surviving mice, T cell development is blocked at the DN3 stage. Inactivation of c-cbl completely reversed the neonatal lethality seen in SLP-76–deficient mice and partially reversed the T cell development arrest in these mice. SLP-76−/− Cbl−/− mice exhibited marked expansion of polarized T helper type (Th)1 and Th2 cell peripheral CD4+ T cells, lymphoid infiltrates of parenchymal organs, and premature death. This rescue of T cell development is T cell receptor dependent because it does not occur in recombination activating gene 2−/− SLP-76−/− Cbl−/− triple knockout mice. Analysis of the signal transduction properties of SLP-76−/− Cbl−/− T cells reveals a novel SLP-76– and linker for activation of T cells–independent pathway of extracellular signal–regulated kinase activation, which is normally down-regulated by c-Cbl.
登录
查看更多内容
影响因子:
64.5
作者:
Pivniouk, V;Tsitsikov, E;Geha, RS
通讯作者:
Geha, RS
影响因子:
56.9
作者:
Sommers, CL;Park, CS;Love, PE
通讯作者:
Love, PE
影响因子:
15.3
作者:
Liu, XL;Adams, A;Wildt, KF;Aronow, B;Feigenbaum, L;Bosselut, R
通讯作者:
Bosselut, R
DOI:
10.1084/jem.20021498
发表时间:
2003-02-17
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Thien CB;Scaife RM;Papadimitriou JM;Murphy MA;Bowtell DD;Langdon WY
通讯作者:
Langdon WY
影响因子:
56.9
作者:
Aguado, E;Richelme, S;Malissen, M
通讯作者:
Malissen, M