Candidate microbicides block HIV-1 infection of human immature Langerhans cells within epithelial tissue explants.
Candidate microbicides block HIV-1 infection of human immature Langerhans cells within epithelial tissue explants.
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DOI:
10.1084/jem.192.10.1491
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发表时间:
2000-11-20
期刊:
影响因子:
--
通讯作者:
Blauvelt A
中科院分区:
文献类型:
--
作者:
Kawamura T;Cohen SS;Borris DL;Aquilino EA;Glushakova S;Margolis LB;Orenstein JM;Offord RE;Neurath AR;Blauvelt A
Initial biologic events that underlie sexual transmission of HIV-1 are poorly understood. To model these events, we exposed human immature Langerhans cells (LCs) within epithelial tissue explants to two primary and two laboratory-adapted HIV-1 isolates. We detected HIV-1Ba-L infection in single LCs that spontaneously emigrated from explants by flow cytometry (median of infected LCs = 0.52%, range = 0.08–4.77%). HIV-1–infected LCs downregulated surface CD4 and CD83, whereas MHC class II, CD80, and CD86 were unchanged. For all HIV-1 strains tested, emigrated LCs were critical in establishing high levels of infection (0.1–1 μg HIV-1 p24 per milliliter) in cocultured autologous or allogeneic T cells. HIV-1Ba-L (an R5 HIV-1 strain) more efficiently infected LC–T cell cocultures when compared with HIV-1IIIB (an X4 HIV-1 strain). Interestingly, pretreatment of explants with either aminooxypentane-RANTES (regulated upon activation, normal T cell expressed and secreted) or cellulose acetate phthalate (potential microbicides) blocked HIV-1 infection of LCs and subsequent T cell infection in a dose-dependent manner. In summary, we document HIV-1 infection in single LCs after exposure to virus within epithelial tissue, demonstrate that relatively low numbers of these cells are capable of inducing high levels of infection in cocultured T cells, and provide a useful explant model for testing of agents designed to block sexual transmission of HIV-1.
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影响因子:
158.5
作者:
Fauci, AS
通讯作者:
Fauci, AS
DOI:
10.1084/jem.184.6.2433
发表时间:
1996-12-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Granelli-Piperno A;Moser B;Pope M;Chen D;Wei Y;Isdell F;O'Doherty U;Paxton W;Koup R;Mojsov S;Bhardwaj N;Clark-Lewis I;Baggiolini M;Steinman RM
通讯作者:
Steinman RM
影响因子:
168.9
作者:
Cohen, MS
通讯作者:
Cohen, MS
影响因子:
64.5
作者:
Liu, R;Paxton, WA;Landau, NR
通讯作者:
Landau, NR
影响因子:
5.4
作者:
Kruse, M;Rosorius, O;Steinkasserer, A
通讯作者:
Steinkasserer, A