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Cefotaxime

頭孢噻肟
Mechanism of action:
Cefotaxime 是一種第三代頭孢菌素抗生素(third-generation cephalosporin antibiotic)。Cefotaxime 的 β-內醯胺(β-lactam)環可與細菌的青黴素結合蛋白(penicillin-binding proteins,PBPs)結合,抑制其轉肽酶(transpeptidase)活性,使肽聚醣(peptidoglycan)鏈無法交聯,最後細胞壁結構脆弱,因滲透壓而讓細菌裂解死亡。
Reference(s):
Williamson R et al. (1980). In vivo interaction of beta-lactam antibiotics with the penicillin-binding proteins of Streptococcus pneumoniae. Antimicrob Agents Chemother.
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