we have found that continuous treatment of the cultures by their own cell debris ( sonicate ) , or by relatively high concentrations of intact , salmon-sperm dna , lead to cell populations which have a decreased potential to produce mammary carcinomata , with a combined failure rate of 9 out of 12 rats ( i.e . 75 % ) : 5 out of these 12 rats ( i.e . 41.7 % ) did not exhibit any growth ( carcinomata or granulomata ) after injection of these treated cells , and now all 5 ( i.e . 100 % ) have the capacity to reject injections of the untreated , active cancer cells .
C0678222
mammary carcinomata
C0334227
cancer cells