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Etidronate

羥基乙叉二膦酸
Mechanism of action:
Etidronate 是一種雙磷酸鹽類(bisphosphonate)衍生物,屬於第一代、非含氮型雙磷酸鹽(non-nitrogen-containing bisphosphonate)。Etidronate 具有與羥磷灰石(hydroxyapatite)的高親和力,優先沉積於骨吸收活躍的表面。Etidronate 在破骨細胞(osteoclast)內會被代謝為無法水解的 ATP 類似物(non-hydrolyzable ATP analogues),干擾細胞能量代謝,導致破骨細胞功能抑制與凋亡。
Reference(s):
1. Cremers S et al. (2019). Pharmacology of bisphosphonates. Br J Clin Pharmacol.
2. Russell RG et al. (2008). Mechanisms of action of bisphosphonates: similarities and differences and their potential influence on clinical efficacy. Osteoporos Int.
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