Anti-β2GPI/β2GPI complexes induce platelet activation and promote thrombosis via p38MAPK: a pathway to targeted therapies  

作　　者：Wenjing Zhang Caijun Zha Xiumin Lu Ruichun Jia Fei Gao Qi Sun Meili Jin Yanhong Li 

机构地区：[1]Department of Laboratory Diagnosis,The Second Affiliated Hospital of Harbin Medical University,Harbin 150086,China [2]Department of Emergency,The First Affiliated Hospital of Heilongjiang University of Chinese Medicine,Harbin 150040,China

出　　处：《Frontiers of Medicine》2019年第6期680-689,共10页医学前沿（英文版）

基　　金：This work was supported by a grant from the National Natural Science Foundation of China(No.81270394);awarded to Yanhong Liu and a grant from the Fundamental Research Founds for the Provincial Universities(No.2017LCZX67)awarded to Wenjing Zhang.

摘　　要：Anti-β2 glycoprotein I(anti-β2GPI)antibodies are important contributors to the development of thrombosis.Anti-β2GPI antibody complexes withβ2GPI are well known to activate monocytes and endothelial cells via the intracellular NF-kB pathway with prothrombotic implications.By contrast,the interaction of anti-β2GPI/β2GPI complexes with platelets has not been extensively studied.The p38 mitogen-activated protein kinase(MAPK)pathway has been recognized to be an important intracellular signaling pathway in the coagulation cascade and an integral component of arterial and venous thrombosis.The present study reveals that levels of anti-β2GPI/β2GPI complexes in sera are positively associated with p38MAPK phosphorylation of platelets in thrombotic patients.Furthermore,SB203580 inhibits anti-β2GPI/β2GPI complex-induced platelet activation.Thrombus formation decreased in p38MAPK−/−mice after treatment with anti-β2GPI/β2GPI complexes.In conclusion,p38MAPK may be a treatment target for anti-β2GPI antibody-associated thrombotic events.

关 键 词：anti-β2GPI antibody P2GPI PLATELET P38MAPK THROMBOSIS complex 

分 类 号：O62[理学—有机化学]