TFH cells accumulate in mucosal tissues of humanized-DRAG mice and are highly permissive to HIV-1.
TFH cells accumulate in mucosal tissues of humanized-DRAG mice and are highly permissive to HIV-1.
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DOI:
10.1038/srep10443
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发表时间:
2015-06-02
影响因子:
4.6
通讯作者:
Rao M
中科院分区:
文献类型:
--
作者:
Allam A;Majji S;Peachman K;Jagodzinski L;Kim J;Ratto-Kim S;Wijayalath W;Merbah M;Kim JH;Michael NL;Alving CR;Casares S;Rao M
CD4+ T follicular helper cells (TFH) in germinal centers are required for maturation of B-cells. While the role of TFH-cells has been studied in blood and lymph nodes of HIV-1 infected individuals, its role in the mucosal tissues has not been investigated. We show that the gut and female reproductive tract (FRT) of humanized DRAG mice have a high level of human lymphocytes and a high frequency of TFH (CXCR5+PD-1++) and precursor-TFH (CXCR5+PD-1+) cells. The majority of TFH-cells expressed CCR5 and CXCR3 and are the most permissive to HIV-1 infection. A single low-dose intravaginal HIV-1 challenge of humanized DRAG mice results in 100% infectivity with accumulation of TFH-cells mainly in the Peyer’s patches and FRT. The novel finding of TFH-cells in the FRT may contribute to the high susceptibility of DRAG mice to HIV-1 infection. This mouse model thus provides new opportunities to study TFH-cells and to evaluate HIV-1 vaccines.
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Feng, Y;Broder, CC;Berger, EA
通讯作者:
Berger, EA
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Choi YS;Kageyama R;Eto D;Escobar TC;Johnston RJ;Monticelli L;Lao C;Crotty S
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Crotty S
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作者:
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作者:
Elshabrawy HA;Coughlin MM;Baker SC;Prabhakar BS
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