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M9550030.TXT
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1995-03-04
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Document 0030
DOCN M9550030
TI Survival of MHC-deficient mouse heterotopic cardiac allografts.
DT 9505
AU Campos L; Naji A; Deli BC; Kern JH; Kim JI; Barker CF; Markmann JF;
Department of Surgery, Hospital of the University of; Pennsylvania,
Philadelphia 19104.
SO Transplantation. 1995 Jan 27;59(2):187-91. Unique Identifier : AIDSLINE
MED/95141380
AB The immunologic mechanisms involved in the destruction of murine cardiac
allografts were evaluated using MHC-deficient mice. Specifically, we
examined the survival of immediately vascularized heterotopic adult
cardiac grafts deficient in MHC class I, MHC class II, or both MHC class
I and II antigens following transplantation to allogeneic hosts. We
observed indefinite cardiac graft survival when donors lacked MHC class
II or both MHC I and II antigens. In parallel experiments, we studied
the survival of cardiac grafts harvested from normal donors in
recipients severely depleted of either CD4 (class II-deficient mice) or
CD8 (class I-deficient mice) T cells. Graft survival was dramatically
prolonged in the absence of CD4 but not CD8 T cells. Collectively, our
results demonstrate that the interaction of host CD4 T cells with donor
class II antigens is critical to the rejection of murine cardiac grafts.
DE Animal Coronary Vessels/PHYSIOLOGY CD8-Positive
T-Lymphocytes/IMMUNOLOGY Graft Survival/*IMMUNOLOGY Haplotypes Heart
Transplantation/*IMMUNOLOGY Histocompatibility Antigens Class
I/IMMUNOLOGY Histocompatibility Antigens Class II/IMMUNOLOGY/METABOLISM
Lymphocyte Transformation/IMMUNOLOGY Major Histocompatibility
Complex/*IMMUNOLOGY Mice Mice, Inbred Strains Neck Support, U.S.
Gov't, P.H.S. T-Lymphocytes/IMMUNOLOGY Transplantation, Heterologous
*Transplantation, Heterotopic Transplantation, Homologous JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).