Protective role of DC-SIGN (CD209) neck-region alleles with <5 repeat units in HIV-1 transmission.

Zhang, Jing; Zhang, Xinsheng; Fu, Jihua; Bi, Zhenqiang; Arheart, Kristopher L; Barreiro, Luis B; Quintana-Murci, Lluis; Pahwa, Savita et al. · J Infect Dis · 2008

case_control · Level III

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Abstract

To investigate the role that DC-SIGN neck-region length variation plays in HIV-1 transmission, we studied 530 HIV-1-positive and 341 HIV-1-negative individuals in China. The carrier frequency of a DC-SIGN allele with <5 repeat units in the neck-region was 0.9% in HIV-1-positive and 3.8% in HIV-1-negative individuals (P=.007), an observation suggesting that this DC-SIGN variation plays a role in HIV-1 transmission. These naturally occurring DC-SIGN neck-region variants were significantly more frequent in the Chinese population than in the US population (P <.001) and in a worldwide population (P=.006).

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