CD8+ and CD4+ T cells contribute to the exacerbation of class I MHC disparate graft-vs-host reaction by concurrent murine cytomegalovirus infection

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Abstract

Concurrent infection with MCMV has been observed to result in the marked exacerbation of a P → F1 GVHR across a class I MHC only donor-recipient disparity. We have previously determined that MCMV induces several alterations characteristic of severe GvHR/D which are not observed during GvHR or MCMV infection alone. Most notable of these alterations is the enhanced development of donor anti-host cytotoxic T cell activity. The present studies were performed to examine the requirement of specific donor and host cell populations. Only depletion of donor CD8+ T cells (not NK1.1+ or CD4+) prevented development of severe GVHR/D. By in vivo antibody treatments, depletion of host CD4+ but not CD8+ T cells also abrogated the development of severe GVHR/D. These findings therefore support the hypothesis that MCMV-activated CD4+ T cells enhance the production of a donor anti-host class I CD8+ response. Thus, the present findings support hypotheses attributing the association of viral infection and GVHD development with pathogen-induced immune responses.

Original languageEnglish
Pages (from-to)84-90
Number of pages7
JournalClinical Immunology and Immunopathology
Volume67
Issue number1
DOIs
StatePublished - Jan 1 1993

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Graft vs Host Reaction
Muromegalovirus
Cytomegalovirus Infections
T-Lymphocytes
Virus Diseases
Infection
Antibodies
Population

ASJC Scopus subject areas

  • Immunology
  • Immunology and Allergy
  • Pathology and Forensic Medicine

Cite this

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title = "CD8+ and CD4+ T cells contribute to the exacerbation of class I MHC disparate graft-vs-host reaction by concurrent murine cytomegalovirus infection",
abstract = "Concurrent infection with MCMV has been observed to result in the marked exacerbation of a P → F1 GVHR across a class I MHC only donor-recipient disparity. We have previously determined that MCMV induces several alterations characteristic of severe GvHR/D which are not observed during GvHR or MCMV infection alone. Most notable of these alterations is the enhanced development of donor anti-host cytotoxic T cell activity. The present studies were performed to examine the requirement of specific donor and host cell populations. Only depletion of donor CD8+ T cells (not NK1.1+ or CD4+) prevented development of severe GVHR/D. By in vivo antibody treatments, depletion of host CD4+ but not CD8+ T cells also abrogated the development of severe GVHR/D. These findings therefore support the hypothesis that MCMV-activated CD4+ T cells enhance the production of a donor anti-host class I CD8+ response. Thus, the present findings support hypotheses attributing the association of viral infection and GVHD development with pathogen-induced immune responses.",
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T1 - CD8+ and CD4+ T cells contribute to the exacerbation of class I MHC disparate graft-vs-host reaction by concurrent murine cytomegalovirus infection

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AU - Levy, Robert B

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N2 - Concurrent infection with MCMV has been observed to result in the marked exacerbation of a P → F1 GVHR across a class I MHC only donor-recipient disparity. We have previously determined that MCMV induces several alterations characteristic of severe GvHR/D which are not observed during GvHR or MCMV infection alone. Most notable of these alterations is the enhanced development of donor anti-host cytotoxic T cell activity. The present studies were performed to examine the requirement of specific donor and host cell populations. Only depletion of donor CD8+ T cells (not NK1.1+ or CD4+) prevented development of severe GVHR/D. By in vivo antibody treatments, depletion of host CD4+ but not CD8+ T cells also abrogated the development of severe GVHR/D. These findings therefore support the hypothesis that MCMV-activated CD4+ T cells enhance the production of a donor anti-host class I CD8+ response. Thus, the present findings support hypotheses attributing the association of viral infection and GVHD development with pathogen-induced immune responses.

AB - Concurrent infection with MCMV has been observed to result in the marked exacerbation of a P → F1 GVHR across a class I MHC only donor-recipient disparity. We have previously determined that MCMV induces several alterations characteristic of severe GvHR/D which are not observed during GvHR or MCMV infection alone. Most notable of these alterations is the enhanced development of donor anti-host cytotoxic T cell activity. The present studies were performed to examine the requirement of specific donor and host cell populations. Only depletion of donor CD8+ T cells (not NK1.1+ or CD4+) prevented development of severe GVHR/D. By in vivo antibody treatments, depletion of host CD4+ but not CD8+ T cells also abrogated the development of severe GVHR/D. These findings therefore support the hypothesis that MCMV-activated CD4+ T cells enhance the production of a donor anti-host class I CD8+ response. Thus, the present findings support hypotheses attributing the association of viral infection and GVHD development with pathogen-induced immune responses.

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