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Ceftazidime

頭孢他啶
Mechanism of action:
Ceftazidime 是一種第三代頭孢菌素抗生素(third-generation cephalosporin antibiotic)。Ceftazidime 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):
1. Fisher JF et al. (2020). Constructing and deconstructing the bacterial cell wall. Protein Sci.
2. Bush K et al. (2016). Beta-lactams and beta-lactamase inhibitors: An overview. Cold Spring Harb Perspect Med.
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