A novel IgM-H-ficolin complement pathway to attack allogenic cancer cells in vitro.

A novel IgM-H-ficolin complement pathway to attack allogenic cancer cells in vitro.
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DOI:
10.1038/srep07824
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发表时间:
2015-01-16
期刊:
影响因子:
4.6
通讯作者:
Yang J
Yang J
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Lei X;Liu C;Azadzoi K;Li C;Lu F;Xiang A;Sun J;Guo Y;Zhao Q;Yan Z;Yang J

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五聚体血清免疫球蛋白通过对微生物和新生癌细胞的细胞毒作用,对免疫防御和监测至关重要。Ficolins是一组总体结构类似C1q的寡聚体凝集素和甘露糖结合凝集素(MBL),通过激活补体凝集素途径或原始吞噬细胞功能参与微生物感染和细胞凋亡清除。目前尚不清楚血清IgM是否与无花果蛋白在癌症免疫监测中相互作用。在这里,我们报道了一种通过一种新的IgM-H-无花果碱补体激活途径介导的健康人群血清对不同类型癌细胞的自然癌症杀伤作用。我们首次证明了H-无花果与阳性血清中的一组IgM结合,以及在癌细胞上沉积的IgM-H-无花果可以激活癌细胞中的补体攻击。我们的数据表明,免疫球蛋白-H-无花果碱介导的补体激活途径可能是人类癌症免疫监测的另一种防御策略。
The pentameric serum IgMs are critical to immune defense and surveillance through cytotoxicity against microbes and nascent cancer cells. Ficolins, a group of oligomeric lectins with an overall structure similar to C1q and mannose-binding lectin (MBL) participate in microbe infection and apoptotic cell clearance by activating the complement lectin pathway or a primitive opsonophagocytosis. It remains unknown whether serum IgMs interplay with ficolins in cancer immunosurveillance. Here we report a natural cancer killing of different types of cancer cells by sera from a healthy human population mediated by a novel IgM–H-ficolin complement activation pathway. We demonstrate for the first time that H-ficolin bound to a subset of IgMs in positive human sera and IgM–H-ficolin deposited on cancer cells to activate complement attack in cancer cells. Our data suggest that the IgM–H-ficolin -mediated complement activation pathway may be another defensive strategy for human cancer immunosurveillance.
DOI: 10.1038/35074122
发表时间: 2001-04-26
期刊: NATURE
影响因子: 64.8
作者:
Shankaran, V;Ikeda, H;Schreiber, RD
通讯作者: Schreiber, RD
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发表时间: 2014-01-14
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影响因子: 4.6
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Ficolins 和传染病。
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发表时间: 2014-02-01
期刊: Virologica Sinica
影响因子: 5.5
作者:
Ren, Yushan;Ding, Quanquan;Zhang, Xiaolian
通讯作者: Zhang, Xiaolian