期刊
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
卷 52, 期 6, 页码 2169-2174出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AAC.01506-07
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Microsporidia are eukaryotic, obligate, intracellular protists that are emerging pathogens in immunocompromised hosts, including AIDS patients and organ transplant recipients. The efficacy of gamma interferon (IFN-gamma) for the treatment of microsporidiosis caused by Encephalitozoon cuniculi was studied by means of adoptive transfer and IFN-gamma administration in SCID mice. While the adoptive transfer of CD4(+) T cells from immunocompetent mice prolonged survival of SCID mice infected perorally with E. cuniculi, survival was not improved by adoptive transfer of CD4(+) T lymphocytes from IFN-gamma-deficient mice. The protective effect of IFN-gamma was confirmed in cytokine therapy experiments in which SCID mice receiving IFN-gamma survived significantly longer than mice receiving mock injections. The administration of serum containing specific antibodies against E. cuniculi was found to prolong the survival of concurrently IFN-gamma-treated SCID mice. The data presented in this study suggest that IFN-gamma is potentially useful as a cytokine therapy for microsporidiosis, especially in CD4(+) T-cell-deficient patients.
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