Duffy antigen receptor for chemokines mediates trans-infection of HIV-1 from red blood cells to target cells and affects HIV-AIDS susceptibility.

Duffy antigen receptor for chemokines mediates trans-infection of HIV-1 from red blood cells to target cells and affects HIV-AIDS susceptibility.
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DOI:
10.1016/j.chom.2008.06.002
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发表时间:
2008-07-17
影响因子:
30.3
通讯作者:
Ahujal, Sunil K.
Ahujal, Sunil K.
中科院分区:
医学1区
文献类型:
--
作者:
He, Weijing;Neil, Stuart;Kulkarni, Hemant;Wright, Edward;Agan, Brian K.;Marconi, Vincent C.;Dolan, Matthew J.;Weiss, Robin A.;Ahujal, Sunil K.

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在红细胞上表达的达菲抗原趋化因子受体(DARC)影响血浆中hiv -1抑制和促炎趋化因子(如CCL5/RANTES)的水平。DARC也是间日疟原虫的红细胞受体。具有DARC- 46C/C基因型(具有DARC阴性表型)的非洲人对间日疟疾具有抗性。在这里,我们发现HIV-1通过DARC附着在红细胞上,影响靶细胞的交叉感染。在非裔美国人中,DARC - 46C/C与感染HIV-1的几率增加40%相关。如果外推到非洲,非洲约11%的HIV-1负担可能与该基因型有关。然而,感染发生后,darc阴性RBC状态与较慢的疾病进展相关。此外,先前描述的CCL5多态性的疾病加速效应仅在表达darc的个体中明显,而在darc阴性的hiv感染者中不明显。因此,DARC通过介导HIV-1的跨性感染、影响趋化因子-HIV相互作用和趋化因子驱动的炎症来影响HIV/AIDS易感性。
Duffy antigen receptor for chemokines (DARC) expressed on red blood cells (RBCs) influences plasma levels of HIV-1-suppressive and proinflammatory chemokines such as CCL5/RANTES. DARC is also the RBC receptor for Plasmodium vivax. Africans with DARC −46C/C genotype, which confers a DARC-negative phenotype, are resistant to vivax malaria. Here, we show that HIV-1 attaches to RBCs via DARC, effecting trans-infection of target cells. In African Americans, DARC −46C/C is associated with 40% increase in the odds of acquiring HIV-1. If extrapolated to Africans, ∼11% of the HIV-1 burden in Africa may be linked to this genotype. After infection occurs, however, DARC-negative RBC status is associated with slower disease progression. Furthermore, the disease-accelerating effect of a previously described CCL5 polymorphism is evident only in DARC-expressing and not in DARC-negative HIV-infected individuals. Thus, DARC influences HIV/AIDS susceptibility by mediating trans-infection of HIV-1 and by affecting both chemokine-HIV interactions and chemokine-driven inflammation.
影响艾滋病毒感染易感性并有助于进展的宿主因素。
DOI: 10.1186/1742-4690-4-52
发表时间: 2007-07-25
期刊: Retrovirology
影响因子: 3.3
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期刊: NATURE MEDICINE
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发表时间: 2006-09-01
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发表时间: 2005-03-04
期刊: SCIENCE
影响因子: 56.9
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DOI: 10.4049/jimmunol.173.6.4236
发表时间: 2004-09-15
影响因子: 4.4
作者:
Horakova, E;Gasser, O;Schifferli, JA
通讯作者: Schifferli, JA