Roles of phospholipase C beta 2 in chemoattractant-elicited responses

被引:124
作者
Jiang, HP [1 ]
Kuang, YN [1 ]
Wu, YP [1 ]
Xie, W [1 ]
Simon, MI [1 ]
Wu, DQ [1 ]
机构
[1] CALTECH, DIV BIOL, PASADENA, CA 91125 USA
关键词
D O I
10.1073/pnas.94.15.7971
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The physiological roles of phospholipase C (PLC) beta 2 in hematopoiesis, leukocyte function, and host defense against infection were investigated using a mouse line that lacks PLC beta 2. PLC beta 2 deficiency did not affect hematopoiesis, but it blocked chemoattractant-induced Ca2+ release, superoxide production, and MAC-1 up-regulation in neutrophils. In view of these effects, it was surprising that the absence of PLC beta 2 enhanced chemotaxis of different leukocyte populations and sensitized the in vivo response of the PLC beta 2-deficient mice to bacteria, viruses, and immune complexes, These data raise questions about the roles that PLC beta 2 may play in signal transduction induced by chemoattractants in leukocytes.
引用
收藏
页码:7971 / 7975
页数:5
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