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Zoledronate

唑來膦酸

Mechanism of action:

Zoledronate 是一種含氮雙磷酸鹽(nitrogen-containing bisphosphonate)衍生物。Zoledronate 會選擇性結合於骨表面的羥磷灰石,特別集中在骨吸收活躍的部位。當破骨細胞(osteoclast)進行骨吸收時,zoledronate 會隨骨基質被破骨細胞吞入細胞內。Zoledronate 在破骨細胞內會抑制法尼基焦磷酸合酶(farnesyl pyrophosphate synthase),阻斷異戊二烯化(prenylation)所需的中間產物生成。當小型 GTP 結合蛋白(如 Ras、Rho、Rab)無法進行異戊二烯化(prenylation)時,破骨細胞的多種代謝會受到抑制,最終導致破骨細胞凋亡。

​Reference(s):

1. Lyles KW et al. (2007). Zoledronic acid and clinical fractures and mortality after hip fracture. N Engl J Med. 


2. Reid IR et al. (2002). Intravenous zoledronic acid in postmenopausal women with low bone mineral density. N Engl J Med. 


3. Durie BG et al. (2005). Osteonecrosis of the jaw and bisphosphonates. N Engl J Med.

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