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Title: Effect of streptolysin S from Streptococcus pyogenes on contact sensitivity in mice. Author: Hryniewicz W, Roszkowski W, Rykiel B, Kanclerski K, Jeljaszewicz J. Journal: Zentralbl Bakteriol Mikrobiol Hyg A; 1986 Jul; 261(4):454-60. PubMed ID: 3532630. Abstract: Streptolysin S, a hemolytic toxin produced by strains of Streptococcus pyogenes, was examined for its effect on cellular immune reaction in mice. The toxin given intraperitoneally for six consecutive days did not influence intensiveness of delayed hypersensitivity to oxazolone which has been used as a model of cellular immune reaction. Streptolysin S injected subcutaneously, closely to lymph nodes directly involved in immune response, markedly suppressed delayed hypersensitivity. Significant inhibition of lymphocyte proliferation by streptolysin S was observed both in vivo as well as in vitro experiments.[Abstract] [Full Text] [Related] [New Search]