Efficient inhibition of collagen-induced platelet activation and adhesion by LAIR-2, a soluble Ig-like receptor family member.

Efficient inhibition of collagen-induced platelet activation and adhesion by LAIR-2, a soluble Ig-like receptor family member.
复制标题

DOI:
10.1371/journal.pone.0012174
复制
发表时间:
2010-08-13
期刊:
影响因子:
3.7
通讯作者:
Meyaard L
Meyaard L
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Lenting PJ;Westerlaken GH;Denis CV;Akkerman JW;Meyaard L

文献摘要

参考文献

被引文献

相似文献

LAIR-1(白细胞相关igg样受体-1)是一种胶原受体,在免疫细胞上起抑制受体的作用。它有一个可溶性家族成员,LAIR-2,也能结合胶原蛋白,并能干扰LAIR-1/胶原蛋白的相互作用。胶原蛋白是血小板粘附和聚集的主要引发剂。在这里,我们探索了可溶性LAIR蛋白在体外抑制血栓形成的潜力。LAIR-2/Fc抑制胶原诱导的血小板聚集,而LAIR-1/Fc不抑制。此外,LAIR-2/Fc在低剪切速率(300 s−1,IC50 = 18µg/ml)和高剪切速率(1500 s−1,IC50 = 30µg/ml)下也干扰血小板对胶原的粘附。进一步的实验表明,LAIR-2/Fc不影响胶原与α2β1的相互作用,但有效地阻止胶原与糖蛋白VI和血管性血友病因子的结合。因此,LAIR-2/Fc具有干扰由糖蛋白VI和VWF/糖蛋白Ib轴介导的血小板-胶原相互作用的能力。
LAIR-1 (Leukocyte Associated Ig-like Receptor -1) is a collagen receptor that functions as an inhibitory receptor on immune cells. It has a soluble family member, LAIR-2, that also binds collagen and can interfere with LAIR-1/collagen interactions. Collagen is a main initiator for platelet adhesion and aggregation. Here, we explored the potential of soluble LAIR proteins to inhibit thrombus formation in vitro. LAIR-2/Fc but not LAIR-1/Fc inhibited collagen-induced platelet aggregation. In addition, LAIR-2/Fc also interfered with platelet adhesion to collagen at low shear rate (300 s−1; IC50 = 18 µg/ml) and high shear rate (1500 s−1; IC50 = 30 µg/ml). Additional experiments revealed that LAIR-2/Fc leaves interactions between collagen and α2β1 unaffected, but efficiently prevents binding of collagen to Glycoprotein VI and von Willebrand factor. Thus, LAIR-2/Fc has the capacity to interfere with platelet-collagen interactions mediated by Glycoprotein VI and the VWF/Glycoprotein Ib axis.
DOI: 10.1182/blood-2007-08-108472
发表时间: 2008-05-15
期刊: Blood
影响因子: 20.3
作者:
Jarvis GE;Raynal N;Langford JP;Onley DJ;Andrews A;Smethurst PA;Farndale RW
通讯作者: Farndale RW
DOI: 10.1074/jbc.m509818200
发表时间: 2006-02-17
影响因子: 4.8
作者:
Raynal, N;Hamaia, SW;Farndale, RW
通讯作者: Farndale, RW
DOI: 10.4049/jimmunol.180.3.1662
发表时间: 2008-02-01
影响因子: 4.4
作者:
Lebbink, Robert Jan;van den Berg, Maaike C. W.;Meyaard, Linde
通讯作者: Meyaard, Linde
DOI: 10.1189/jlb.0705370
发表时间: 2006-04-01
影响因子: 5.5
作者:
Verbrugge, Annelies;de Ruiter, Talitha;Meyaard, Linde
通讯作者: Meyaard, Linde
DOI: 10.1016/s0049-3848(98)00159-5
发表时间: 1998-12-15
影响因子: 7.5
作者:
Sixma, JJ;de Groot, PG;IJsseldijk, M
通讯作者: IJsseldijk, M