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1996-02-27
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Document 0092
DOCN M9630092
TI CD4+, CD8+ and CD4- CD8- T cell-subsets can confer protection against
Leishmania m. mexicana infection.
DT 9603
AU Lezama-Davila CM; Gallagher G; Centro de Investigaciones en Enfermedades
Tropicales,; Universidad Autonoma de Campeche, Mexico.
SO Mem Inst Oswaldo Cruz. 1995 Jan-Feb;90(1):51-8. Unique Identifier :
AIDSLINE MED/96043832
AB We studied the role of CD4+, CD8+, CD4- CD8- T cells and IgG
anti-Leishmania after infection or vaccination in the CBA/ca mouse. Mice
were either infected with L. m. mexicana promastigotes or vaccinated
with parasite-membrane antigens incorporated into liposomes.
Successfully vaccinated mice were used as cell-donors in adoptive
transfer experiments. Naive, syngeneic recipients received
highly-enriched CD4+, CD8+ or CD4- CD8- T cells from those two set of
donors and challenged with live parasites. Our results showed that, both
CD4+ and CD8+ T cells from infected or vaccinated donors conferred
significant disease-resistance to naive recipients. In addition,
adoptive transfer of CD4- CD8- T cells from vaccinated donors
significantly delayed lesion growth in recipient mice. We concluded that
vaccination of CBA mice correlates with the induction of protective
CD4+, CD8+ and CD4- CD8- T cells and the synthesis of IgG
anti-Leishmania.
DE Animal *CD4-CD8 Ratio CD4-Positive
T-Lymphocytes/*IMMUNOLOGY/PARASITOLOGY CD8-Positive
T-Lymphocytes/*IMMUNOLOGY/PARASITOLOGY Electrophoresis, Polyacrylamide
Gel Enzyme-Linked Immunosorbent Assay Female IgG/ANALYSIS Leishmania
mexicana/IMMUNOLOGY Leishmaniasis, Cutaneous/*IMMUNOLOGY Male Mice
Mice, Inbred CBA Vaccination JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).