Cefodizime sodiumの抗原性試験

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The antigenicity studies of a β-lactam antibiotic, cefodizime sodium (THR-221), were examined in mice and guinea pigs and the following results were obtained. 1)In passive cutaneous anaphylaxis (PCA) with sera from BALB/c or C3H/He mice, a slight PCA reaction was observed only in BALB/c mice by using THR-221-ovalbumin (OVA) plus Freund's complete adjuvant (FCA) as the immunogen and THR-221 itself as the eliciting antigen. 2)Immunological cross-reactivity between THR-221 and CTX was present at the rat PCA reaction. 3)Antibodies against THR-221 were detected by PCA in guinea pigs. The anti-THR-221 antibodies gave PCA responses smaller than those of CMZ by using antibiotic plus FCA as the immunogen and the antibiotic-bovine serum albumin (BSA) as the eliciting antigen. 4)In the observation of active systemic anaphylaxis (ASA), no symptoms were observed in guinea pigs sensitized with THR-221 and provoked with THR-221-BSA. On the other hand, guinea pigs sensitized with THR-221 plus FCA by injecting THR-221-BSA showed fetal anaphylactic reactions. 5)The results of passive hemagglutination (PHA) also indicated that the PHA titer of THR-221 was lower than that of CMZ. 6)Protein binding property of THR-221 with human serum albumin was lower than other β-lactam antibiotics. 7)Antibodies against THR-221-OVA by using THR-221-BSA as the eliciting antigen were detected in any tests above mentioned. It is concluded from these results that immunological activity of THR-221 was equivalent to the other β-lactam antibiotics.
日本トキシコロジー学会の論文
1988-06-03

Cefodizime sodiumの抗原性試験

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