Nov 1, 1977

Kinetics of the in vitro lymphocyte response to myelin basic protein in the the Lewis and Brown Norway strains of rat

The Journal of Immunology : Official Journal of the American Association of Immunologists
W D SheffieldS U Kim


Several parameters of the in vitro lymphocyte proliferative response to myelin basic protein (BP) in Lewis (Le) and Brown Norway (BN) rats were examined. The results demonstrate that BN rats, a strain normally resistant to BP-induced experimental allergic encephalomyelitis, and Le rats, a strain readily susceptible to the disease, have similar patterns of the proliferative response to BP. An important difference, however, is that BN lymphocytes, although responding significantly to BP, are unable to proliferate to the same level as Le lymphocytes. In experiments measuring the lymphocyte response as a function of antigenic stimulus, days of culture, or type of adjuvant used, the BN rat peak response was in general 70% or less of the Le rat peak response. Furthermore, the BN lymphocyte response was reduced when B cells were removed whereas there was no effect in the Le rat. A negative feedback mechanism, possibly suppressor cells, has been suggested to explain these differences.

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Mentioned in this Paper

Immunologic Adjuvants
Lymphocytes as Percentage of Blood Leukocytes (Lab Test)
Experimental Autoimmune Encephalomyelitis
Rats, Inbred BN
Dose-Response Relationship, Immunologic
Lymphocyte Activation
Myelin Basic Proteins
Lymph Nodes

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