Zoledronic Acid

• CAT Number: A000348
• CAS Number: 118072-93-8
• Molecular Formula: C5H10N2O7P2
• Molecular Weight: 272.09
• Purity: ≥95%
• Synonyms: Zoledronate, CGP-4244
• Target: Autophagy
• Solubility: Limited solubility
• Storage: 3 years -20C powder

Zoledronic acid (ZA), a potent osteoclast inhibitor, induces apoptosis in osteoclasts by inhibiting enzymes of the mevalonate pathway and preventing the isoprenylation of small GTP-binding proteins such as Ras and Rho.Zoledronic acid (10 µM and 100 µM) causes a significant reduction in the proportions of MCF-7 cells (49.54% and 23.55% of control, respectively) (P < 0.05). Zoledronic acid has little effect on MDA-MB-231 cells at concentrations of 0.1–10 µM, whereas the 100 µM concentration results in a significant reduction in cell number. Zoledronic acid (100 µM) results in a 63.5% reduction in MCF-7 cell number at 72 hours and an 87.1% reduction at 96 hours. Zoledronic acid (10 µM) results in a greater than 4-fold increase in MCF-7 cell apoptosis whereas the 100 µM concentration induces a 6-fold increase in the proportion of apoptotic cells. Zoledronic acid (10 µM) and paclitaxel (2 µM) results in a 5-fold increase in apoptosis (774.8% of control) compared to zoledronic acid alone (155.71%) and a 4-fold increase compared to paclitaxel alone (189.68%). Zoledronic acid-induced apoptosis of MCF-7 breast cancer cells can be inhibited by addition of intermediates of the mevalonate pathway, which is consistent with observations in osteoclasts, macrophages and myeloma cells.Zoledronic acid (120 mg/kg, s.c.) prevents the formation of lesions, prevents cancellous bone loss and loss of bone mineral density, and reduces osteoclast perimeter in 5T2MM-bearing mice. Zoledronic acid (120 mg/kg, s.c.) also decreases paraprotein concentration, decreases tumor burden, and reduces angiogenesis in 5T2MM-bearing mice.