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1996-02-26
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Document 0767
DOCN M9620767
TI Neutralization of HIV-1 by secretory IgA induced by oral immunization
with a new macromolecular multicomponent peptide vaccine candidate.
DT 9602
AU Bukawa H; Sekigawa K; Hamajima K; Fukushima J; Yamada Y; Kiyono H; Okuda
K; Department of Oral and Maxillofacial Surgery, Yokohama City;
University School of Medicine, Japan.
SO Nat Med. 1995 Jul;1(7):681-5. Unique Identifier : AIDSLINE MED/96071531
AB Control of pandemic infection of human immunodeficiency virus type 1
(HIV-1) requires some means of developing mucosal immunity against HIV-1
because sexual transmission of the virus occurs mainly through the
mucosal tissues. However, there is no evidence as yet that the secretory
immunoglobulin A (IgA) antibody induced by immunization with antigens in
experimental animals can neutralize HIV-1. We demonstrate here that oral
immunization with a new macromolecular peptide antigen and cholera toxin
(CT) induces a high titre (1:2) of gut-associated and secretory IgA
antibody to HIV-1. Using three different neutralizing assays, we clearly
demonstrate that this secretory IgA antibody is able to neutralize
HIV-1IIIB, HIV-1SF2 and HIV-1MN. Our new approach may prove to be
important in the development of a mucosal vaccine that will provide
protection of mucosal surfaces against HIV-1.
DE Administration, Oral Amino Acid Sequence Animal Antibody Specificity
Antigens, CD4/METABOLISM AIDS Vaccines/ADMINISTRATION &
DOSAGE/*IMMUNOLOGY Binding Sites Cholera Toxin/*IMMUNOLOGY Consensus
Sequence Gastric Mucosa/IMMUNOLOGY HIV
Antibodies/BIOSYNTHESIS/*IMMUNOLOGY HIV Envelope Protein
gp120/*IMMUNOLOGY HIV-1/*IMMUNOLOGY IgA,
Secretory/BIOSYNTHESIS/*IMMUNOLOGY Intestinal Mucosa/IMMUNOLOGY Japan
Mice Mice, Inbred BALB C Molecular Sequence Data Neutralization Tests
Peptide Fragments/*IMMUNOLOGY Support, Non-U.S. Gov't Vaccines,
Synthetic/ADMINISTRATION & DOSAGE/*IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).