Risedronic acid

Risedronic acid (Risedronate) is a bisphosphonate and potent antiresorptive agent. Risedronic acid induces Apoptosis. Risedronic acid inhibits the transfer of farnesyl pyrophosphate groups to parasite proteins. Risedronic acid inhibits osteoclast-mediated bone resorption and alters bone metabolism. Risedronic acid inhibits blood-stage Plasmodium falciparum (IC₅₀ of 20.3 μM)^[1][2][3]. In Vitro:Risedronic acid (0-10 μM; 14 days) suppresses the formation of mineralized nodules in human mesenchymal stem cells (hMSC12) and rat thymus-derived mesenchymal stem cells (ST1BIIb)^[1].
Risedronic acid (0-10 μM; 3 days) suppresses the mRNA expression of osteoblast marker gene osteocalcin (OC) in human mesenchymal stem cells (hMSC12)^[1].
Risedronic acid (100-1000 μM; 48 h) induces chromatin condensation and activates caspase-3 in human mesenchymal stem cells (hMSC12)^[1].
Risedronic acid (Risedronate) (15 μM; 36 h) inhibits isoprenoid biosynthesis in Plasmodium falciparum, as shown by the decreased intensities of bands corresponding to farnesol (FOH) and geranylgeraniol (GGOH)^[3].
Risedronic acid (15 μM; 36 h) interferes with protein isoprenylation in Plasmodium falciparum, reducing the intensities of farnesylated protein bands and increasing those of geranylgeranylated protein bands^[3]. In Vivo:Risedronic acid (Risedronate) (30 μg/kg; subcutaneous injection; once every other day; 3 weeks) prevents radiation-induced osteoporosis in female C57BL/6 mice irradiated with 2 Gy X-rays, inhibits trabecular bone loss and microstructural damage, and suppresses the increase in osteoclast number and serum TRAP5b^[2].
Risedronic acid (10-25 mg/kg; intraperitoneal injection; once a day; 7 days) inhibits parasitemia in BALB/c mice infected with Plasmodium berghei strain ANKA, but does not prolong the survival time of mice^[3].