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HIV-specific mucosal and cellular immunity in HIV-seronegative partners of HIV-seropositive individuals.

Abstract：

:HIV-specific mucosal and cellular immunity was analyzed in heterosexual couples discordant for HIV status in serum and in HIV-unexposed controls. HIV-specific IgA but not IgG was present in urine and vaginal wash samples from HIV-exposed seronegative individuals (ESN), whereas both IgA and IgG were observed in their HIV-seropositive partners; antibodies were not detected in low-risk controls. Envelope protein (Env) peptide-stimulated interleukin-2 (IL-2) production by peripheral blood mononuclear cells (PBMCs) was detected in 9 out of 16 ESNs, 5 out of 16 HIV-infected patients and 1 out of 50 controls. Env peptide-stimulated PBMCs of ESNs produced more IL-2 and less IL-10 compared with those of HIV-infected individuals; no differences were observed in chemokine production or in CCR5 expression. These data demonstrate that a compartmentalized immune response to pathogens is possible in humans and raise the possibility of protective roles for cell-mediated immunity and mucosal IgA in HIV-seronegative individuals exposed to HIV.

journal_name

Nat Med

journal_title

Nature medicine

authors

Mazzoli S,Trabattoni D,Lo Caputo S,Piconi S,Blé C,Meacci F,Ruzzante S,Salvi A,Semplici F,Longhi R,Fusi ML,Tofani N,Biasin M,Villa ML,Mazzotta F,Clerici M

doi

10.1038/nm1197-1250

subject

Has Abstract

pub_date

1997-11-01 00:00:00

pages

1250-7

issue

11

eissn

1078-8956

issn

1546-170X

journal_volume

3

pub_type

杂志文章

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