Rescue of CH31 B cells from antigen receptor-induced apoptosis by inhibition of p38 MAPK.
Rescue of CH31 B cells from antigen receptor-induced apoptosis by inhibition of p38 MAPK.
复制标题
通过抑制 p38 MAPK 来拯救 CH31 B 细胞免受抗原受体诱导的细胞凋亡。
DOI:
10.1006/bbrc.2000.3489
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发表时间:
2000
影响因子:
3.1
通讯作者:
Chiles,TC
中科院分区:
文献类型:
--
作者:
Swart,JM;Chiles,TC
CH31 B lymphomas represent a model for antigen-induced deletional tolerance of immature B lymphocytes, because cross-linking the B cell antigen receptor (BCR) induces G1phase arrest and apoptosis. We have recently demonstrated that BCR cross-linking leads to a transient activation of p38 mitogen-activated protein kinase (MAPK) in CH31 B cells. In this paper, we functionally characterize the role of p38 MAPK in BCR-induced apoptosis as well as evaluate the regulation of additional MAPKs by the BCR. We demonstrate that JNK and ERK activities are not affected by BCR cross-linking, suggesting that these MAPKs are not directly involved in initiating the apoptotic cascade. By contrast, we show that pretreatment of CH31 B cells with the highly specific p38 MAPK inhibitor SB203580 ablated both BCR-induced p38 MAPK activity and apoptosis. Pretreatment of CH31 cells with an inactive SB203580 analog, SB202474, did not prevent apoptosis. These findings establish a key role for p38 MAPK in antigen receptor-mediated apoptosis of CH31 B cells.
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影响因子:
4.4
作者:
Claire L. Sutherland;A. Heath;S. Pelech;P. Young;M. Gold
通讯作者:
M. Gold
影响因子:
56.9
作者:
HAN, J;LEE, JD;ULEVITCH, RJ
通讯作者:
ULEVITCH, RJ
DOI:
--
发表时间:
1996
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Sen,J;Kapeller,R;Fragoso,R;Sen,R;Zon,LI;Burakoff,SJ
通讯作者:
Burakoff,SJ
影响因子:
56.9
作者:
XIA, ZG;DICKENS, M;GREENBERG, ME
通讯作者:
GREENBERG, ME
影响因子:
4.4
作者:
R. A. Salmon;Ian Foltz;P. Young;John W. Schrader
通讯作者:
John W. Schrader