STUDIES ON ANTICANCER FACTOR(S) FROM GROUP A STREPTOCOCCI .1. ISOLATION AND FRACTIONATION OF CELL-FREE-EXTRACT FROM STREPTOLYSIN S-FORMING STREPTOCOCCI

  • 1 January 1976
    • journal article
    • research article
    • Vol. 67  (5) , 661-667
Abstract
By employing a stepwise fractionation with ammonium sulfate, 4 fractions were obtained from streptomycin-pretreated cell free extracts of live hemolytic streptococci, Su strain. Among them, the 60-F fraction obtained by 0.6 ammonium sulfate saturation had the most potent anticancer activity in mouse Ehrlich carcinoma.

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