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  • Title: Immune responses during measles infection in immunosuppressed Rhesus monkeys.
    Author: Hicks JT, Sullivan JL, Albrecht P.
    Journal: J Immunol; 1977 Oct; 119(4):1452-6. PubMed ID: 19536.
    Abstract:
    Rhesus monkeys immunosuppressed with horse anti-human thymocyte gamma-globulin (ATG) were infected with measles and simultaneously inoculated with sheep erythrocytes (SRBC), a thymus-dependent antigen, and with pneumococcal polysaccaride type III (SSS-III), a thymus-independent antigen. ATG treatment alone suppressed SRBC antibody production, had no effect on SSS-III antibody production, and effectively eliminated circulating T cells compared to nonsuppressed monkeys. ATG treatment of measles-infected monkeys resulted in delayed virus clearance and delayed antibody production compared to nonsuppressed infected monkeys. After cessation of ATG treatment, measles antibodies and T cells reached normal levels, and measles virus was eliminated. Thus, immune clearance of measles virus is T cell-dependent, but the relative roles of cellular- and humoral-mediated immunity in vivo could not be clearly separated. Also, measles infection was associated with a decreased T cell mitogen responsiveness of circulating lymphocytes but not of lymph node lymphocytes, suggesting an altered circulating pattern of the cells responsible for delayed hypersensitivity. Also, measles infection had no effect on T-dependent antibody production to SRBC.
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