Impaired alpha(IIb)beta(3) integrin activation and shear-dependent thrombus formation in mice lacking phospholipase D1.
Impaired alpha(IIb)beta(3) integrin activation and shear-dependent thrombus formation in mice lacking phospholipase D1.
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缺乏磷脂酶D1的小鼠中的α(IIB)β(3)整联蛋白活化和剪切依赖性血栓形成。
DOI:
10.1126/scisignal.2000551
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发表时间:
2010-01-05
影响因子:
7.3
通讯作者:
Nieswandt B
中科院分区:
文献类型:
--
作者:
Elvers M;Stegner D;Hagedorn I;Kleinschnitz C;Braun A;Kuijpers ME;Boesl M;Chen Q;Heemskerk JW;Stoll G;Frohman MA;Nieswandt B
Platelet aggregation is essential for hemostasis, but can also cause myocardial infarction and stroke. A key but poorly understood step in platelet activation is increased function of the major adhesive receptor, αIIbβ3 integrin, which enables adhesion and aggregation. Phospholipases (PL), in response to agonist receptor stimulation, cleave membrane phospholipids to generate lipid second messengers. An essential role in platelet activation has been established for PLC, but not for PLD and its product phosphatidic acid. Here, we report the generation of Pld1−/− mice and show that their platelets display impaired αIIbβ3 integrin activation in response to classic agonists, and defective glycoprotein Ib-dependent aggregate formation under high shear flow conditions. This defect resulted in protection from thrombosis and ischemic brain infarction, without affecting tail bleeding times. These results indicate that PLD1 may be a critical regulator of platelet activity in the setting of ischemic cardiovascular and cerebrovascular events.
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影响因子:
8.3
作者:
Adams, Harold P., Jr.;Effron, Mark B.;Hacke, Werner
通讯作者:
Hacke, Werner
影响因子:
37.8
作者:
Kleinschnitz, Christoph;Pozgajova, Miroslava;Stoll, Guido
通讯作者:
Stoll, Guido
影响因子:
4.8
作者:
Mangin, P;Yuan, YP;Lanza, F
通讯作者:
Lanza, F
影响因子:
3.6
作者:
Holinstat, Michael;Preininger, Anita M.;Hamm, Heidi E.
通讯作者:
Hamm, Heidi E.
影响因子:
20.3
作者:
Grüner, S;Prostredna, M;Nieswandt, B
通讯作者:
Nieswandt, B