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1996-02-26
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Document 0730
DOCN M9620730
TI In vitro stimulation of peripheral blood mononuclear cells (PBMC) from
HIV- and HIV+ chancroid patients by Haemophilus ducreyi antigens.
DT 9602
AU Van Laer L; Vingerhoets J; Vanham G; Kestens L; Bwayo J; Otido J; Piot
P; Roggen E; Department of Infection and Immunity, Institute of
Tropical; Medicine, Antwerp, Belgium.
SO Clin Exp Immunol. 1995 Nov;102(2):243-50. Unique Identifier : AIDSLINE
MED/96069870
AB The cellular immune responses to fractionated Haemophilus ducreyi
antigens, coated on latex beads, were assessed in patients with
chancroid and in controls, using an in vitro lymphocyte proliferation
assay. Several fractions of H. ducreyi antigen revealed stimulating
activity. However, only the molecular size ranges 91-78 kD, 59-29 kD,
and 25-21 kD induced proliferation that may be specifically related to
H. ducreyi infection. Lymphocytes from four HIV- patients, successfully
treated for chancroid, were not stimulated by H. ducreyi antigen. In
general, lymphocytes from HIV+ chancroid patients were less responsive
to H. ducreyi antigen compared with those from HIV- chancroid patients.
However, two HIV-infected patients showed exceptionally strong responses
to high molecular weight fractions. To our knowledge this is the first
report demonstrating that H. ducreyi contains specific T
cell-stimulating antigens. Based on this work, further identification
and purification of the T cell antigens is feasible.
DE Antigens, Bacterial/IMMUNOLOGY Chancroid/*COMPLICATIONS/IMMUNOLOGY
Haemophilus ducreyi/IMMUNOLOGY Human HIV
Infections/*COMPLICATIONS/IMMUNOLOGY Lymphocyte Transformation Male
Support, Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).