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Ofatumumab
奧法妥木單抗
Mechanism of action:
Ofatumumab 是一種第一代抗 CD20 IgG1 單株抗體(anti-CD20 monoclonal antibody)。Ofatumumab 的標靶為 B 細胞表面的 CD20 抗原。Ofatumumab 與 CD20 結合後,其 Fc 區段會吸引補體蛋白 C1q,啟動補體級聯反應,形成膜攻擊複合體(membrane attack complex,MAC),導致 B 細胞膜破裂與死亡。
Reference(s):
1. Lin TS et al. (2010). Ofatumumab: a novel monoclonal anti-CD20 antibody. Pharmgenomics Pers Med.
2. Glennie MJ et al. (2007). Mechanisms of killing by anti-CD20 monoclonal antibodies. Mol Immunol.
3. Ryman JT et al. (2017). Pharmacokinetics of Monoclonal Antibodies. CPT Pharmacometrics Syst Pharmacol.
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