CD36-mediated signal transduction in human monocytes by anti-CD36 antibodies but not by anti-thrombospondin antibodies recognizing cell membrane-bound thrombospondin.

CD36-mediated signal transduction in human monocytes by anti-CD36 antibodies but not by anti-thrombospondin antibodies recognizing cell membrane-bound thrombospondin.
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人单核细胞中 CD36 介导的信号转导是通过抗 CD36 抗体进行的,而不是通过识别细胞膜结合血小板反应蛋白的抗血小板反应蛋白抗体进行的。

DOI:
10.1016/s0006-291x(05)81229-x
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发表时间:
1991
影响因子:
3.1
通讯作者:
Jungi,TW
Jungi,TW
中科院分区:
生物学4区
文献类型:
--
作者:
Schüepp,BJ;Pfister,H;Clemetson,KJ;Silverstein,RL;Jungi,TW

文献摘要

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用抗CD36 Fab或F(ab ')2片段处理单核细胞(MNC),然后用抗兔(F(ab')2)刺激,显示出氧化爆发,表明在没有Fc受体参与的情况下,CD36的交联促进了信号转导。此外,完整的抗TSP介导的MNC,这是强烈增强后,单核细胞(但不是淋巴细胞)与TSP预处理的弱氧化爆发。然而,这种反应是由Fc受体介导的,而不是由CD36的参与。交联细胞结合TSP和MNC暴露于表面结合TSP的其他方法未能促进氧化爆发。交叉竞争试验证实TSP与单核细胞的相互作用位点不同于多克隆和3种单克隆抗CD36抗体识别的信号促进位点。
Mononuclear cells (MNC) treated with anti-CD36 Fab or F(ab')2fragments and then stimulated with anti-rabbit (F(ab')2displayed an oxidative burst, suggesting that the crosslinking of CD36 promotes signal transduction in the absence of an Fc receptor involvement. Moreover, intact anti-TSP mediates a weak oxidative burst in MNC, which was strongly enhanced upon pretreatment of monocytes (but not lymphocytes) with TSP. This response, however, was mediated by Fc receptors, not by an involvement of CD36. Other means of crosslinking cell-bound TSP and exposure of MNC to surface-bound TSP failed to promote an oxidative burst. Crosscompetition tests confirmed that the interaction site(s) of TSP with monocytes are distinct from the signal-promoting sites recognized by polyclonal and 3 monoclonal anti-CD36 antibodies.
DOI: 10.1172/jci111578
发表时间: 1984
期刊: The Journal of clinical investigation
影响因子: --
作者:
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