p47phox deficiency impairs platelet function and protects mice against arterial and venous thrombosis
p47phox deficiency impairs platelet function and protects mice against arterial and venous thrombosis
复制标题
p47phox 缺乏会损害血小板功能并保护小鼠免受动脉和静脉血栓形成
DOI:
10.1016/j.redox.2020.101569
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发表时间:
2020-05
期刊:
影响因子:
11.4
通讯作者:
Qiao Jianlin
中科院分区:
文献类型:
--
作者:
Wang Xiamin;Zhang Sixuan;Ding Yangyang;Tong Huan;Xu Xiaoqi;Wei Guangyu;Chen Yuting;Ju Wen;Fu Chunling;Qi Kunming;Li Zhenyu;Zeng Lingyu;Xu Kailin;Qiao Jianlin
NADPH oxidase-derived reactive oxygen species (ROS) regulates platelet function and thrombosis. It remains controversial regarding NOX2’s role in platelet function. As a regulatory subunit for NOX2, whether p47phoxregulates platelet function remains unclear. Our study intends to evaluate p47phox’s role in platelet function. Platelets were isolated from wild-type or p47phox-/-mice followed by analysis of platelet aggregation, granule secretion, surface receptors expression, spreading, clot retraction and ROS generation. Additionally,in vivohemostasis, arterial and venous thrombosis was assessed. Moreover, human platelets were treated with PR-39 to inhibit p47phoxactivity followed by analysis of platelet function. p47phoxdeficiency significantly prolonged tail-bleeding time, delayed arterial and venous thrombus formationin vivoas well as reduced platelet aggregation, ATP release and αIIbβ3 activation. In addition, p47phox-/-platelets presented impaired spreading on fibrinogen or collagen and defective clot retraction concomitant with decreased phosphorylation of Syk and PLCγ2. Moreover, CRP or thrombin-stimulated p47phox-/-platelets displayed reduced intracellular ROS generation which was further decreased after inhibition of NOX1. Meanwhile, p47phoxdeficiency increased VASP phosphorylation and decreased phosphorylation of ERK1/2, p38, ERK5 and JNK without affecting AKT and c-PLA2 phosphorylation. Furthermore, p47phoxtranslocates to membrane to interact with both NOX1 and NOX2 after stimulation with CRP or thrombin. Finally, inhibition of p47phoxactivity by PR-39 reduced ROS generation, platelet aggregation and clot retraction in human platelets. In conclusion, p47phoxregulates platelet function, arterial and venous thrombus formation and ROS generation, indicating that p47phoxmight be a novel therapeutic target for treating thrombotic or cardiovascular diseases.
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DOI:
10.1083/jcb.86.1.77
发表时间:
1980-07
期刊:
The Journal of cell biology
影响因子:
--
作者:
Phillips DR;Jennings LK;Edwards HH
通讯作者:
Edwards HH
影响因子:
37.8
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Violi, F
影响因子:
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作者:
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通讯作者:
D. Vara;M. Campanella;M. Campanella;G. Pula
影响因子:
11.4
作者:
Qiao J;Arthur JF;Gardiner EE;Andrews RK;Zeng L;Xu K
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Xu K
DOI:
10.1161/atvbaha.116.307308
发表时间:
2016-05
期刊:
Arteriosclerosis, thrombosis, and vascular biology
影响因子:
--
作者:
Delaney MK;Kim K;Estevez B;Xu Z;Stojanovic-Terpo A;Shen B;Ushio-Fukai M;Cho J;Du X
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Du X