PMID- 18752963 OWN - NLM STAT- MEDLINE DCOM- 20081205 LR - 20191210 IS - 1464-3391 (Electronic) IS - 0968-0896 (Linking) VI - 16 IP - 18 DP - 2008 Sep 15 TI - Synthesis and biological evaluation of indolyl bisphosphonates as anti-bone resorptive and anti-leishmanial agents. PG - 8482-91 LID - 10.1016/j.bmc.2008.08.024 [doi] AB - A series of indole conjugated bisphosphonate derivatives have been synthesized and evaluated for their in vitro anti-bone resorptive activity using bone marrow osteoclast culture. Two bisphosphonates 23 and 24 significantly inhibited osteoclastogenesis, 23 showed inhibition at 10 and 100 pM which was lower than the concentration of standard drug alendronate, and 24 inhibited osteoclastogenesis at 100 nM which was comparable to alendronate. Two other compounds 13 and 14 also showed inhibition comparable to alendronate, but were cytotoxic in the osteoblast cells. The two active bisphosphonates 23 and 24 induced significant osteoclast apoptosis at concentrations 100 nM for compound 24 and at 10 pM for compound 23 compared to alendronate. In vivo effect of active bisphosphonates 23 and 24 resulted in osteoclastogenesis of bone marrow cells (BMCs) to almost 40-50% (23 showing 8.4% decrease and 24 showing 9.0%) compared to 16.5% of the ovariectomized group. Further, screening of anti-leishmanial activity, four compounds 24-25 and 27-28 showed more than 80% inhibition against both the promastigote and amastigote stages of the Leishmania parasite. FAU - Singh, Uma Sharan AU - Singh US AD - Medicinal & Process Chemistry Division, Central Drug Research Institute, Lucknow 226001, India. FAU - Shankar, Ravi AU - Shankar R FAU - Kumar, Avinash AU - Kumar A FAU - Trivedi, Ritu AU - Trivedi R FAU - Chattopadhyay, Naibedya AU - Chattopadhyay N FAU - Shakya, Nishi AU - Shakya N FAU - Palne, Shraddha AU - Palne S FAU - Gupta, Suman AU - Gupta S FAU - Hajela, K AU - Hajela K LA - eng PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080812 PL - England TA - Bioorg Med Chem JT - Bioorganic & medicinal chemistry JID - 9413298 RN - 0 (Bone Density Conservation Agents) RN - 0 (Diphosphonates) RN - 0 (Indoles) RN - X1J18R4W8P (Alendronate) SB - IM MH - Alendronate/pharmacology MH - Animals MH - Apoptosis/*drug effects MH - Bone Density Conservation Agents/chemical synthesis/*pharmacology MH - Bone Resorption/metabolism/*pathology MH - Cell Proliferation/*drug effects MH - Cells, Cultured MH - Diphosphonates/chemical synthesis/*pharmacology MH - Indoles/chemical synthesis/*pharmacology MH - Leishmania/*drug effects/metabolism MH - Mice MH - Osteoclasts/metabolism/pathology MH - Structure-Activity Relationship EDAT- 2008/08/30 09:00 MHDA- 2008/12/17 09:00 CRDT- 2008/08/30 09:00 PHST- 2008/06/03 00:00 [received] PHST- 2008/08/06 00:00 [revised] PHST- 2008/08/08 00:00 [accepted] PHST- 2008/08/30 09:00 [pubmed] PHST- 2008/12/17 09:00 [medline] PHST- 2008/08/30 09:00 [entrez] AID - S0968-0896(08)00752-9 [pii] AID - 10.1016/j.bmc.2008.08.024 [doi] PST - ppublish SO - Bioorg Med Chem. 2008 Sep 15;16(18):8482-91. doi: 10.1016/j.bmc.2008.08.024. Epub 2008 Aug 12.