PMID- 28931828 OWN - NLM STAT- MEDLINE DCOM- 20190627 LR - 20190627 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 7 IP - 1 DP - 2017 Sep 20 TI - A Novel H2S-releasing Amino-Bisphosphonate which combines bone anti-catabolic and anabolic functions. PG - 11940 LID - 10.1038/s41598-017-11608-z [doi] LID - 11940 AB - Bisphosphonates (BPs) are the first-line treatment of bone loss resulting from various pathological conditions. Due to their high affinity to bone they have been used to develop conjugates with pro-anabolic or anti-catabolic drugs. We recently demontrated that hydrogen sulfide (H(2)S), promotes osteogenesis and inhibits osteoclast differentiation. Here we developed an innovative molecule, named DM-22, obtained from the combination of alendronate (AL) and the H(2)S-releasing moiety aryl-isothiocyanate. DM-22 and AL were assayed in vitro in the concentration range 1-33 muM for effects on viability and function of human osteoclasts (h-OCs) and mesenchymal stromal cells (h-MSCs) undergoing osteogenic differentiation. Amperometric measures revealed that DM-22 releases H(2)S at a slow rate with a thiol-dependent mechanism. DM-22 significantly inhibited h-OCs differentiation and function, maintaining a residual h-OCs viability even at the high dose of 33 muM. Contrary to AL, in h-MSCs DM-22 did not induce cytotoxicity as revealed by LDH assay, significantly stimulated mineralization as measured by Alizarin Red staining and increased mRNA expression of Collagen I as compared to control cultures. In conclusion, DM-22 is a new BP which inhibits h-OCs function and stimulate osteogenic differentiation of h-MSCs, without cytotoxicity. DM-22 is an ideal candidate for a novel family of osteoanabolic drugs. FAU - Rapposelli, Simona AU - Rapposelli S AUID- ORCID: 0000-0003-0146-6358 AD - Dipartimento di Farmacia, Universita di Pisa, Via Bonanno 6, I-56126, Pisa, Italy. FAU - Gambari, Laura AU - Gambari L AD - Laboratorio RAMSES, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy. FAU - Digiacomo, Maria AU - Digiacomo M AD - Dipartimento di Farmacia, Universita di Pisa, Via Bonanno 6, I-56126, Pisa, Italy. FAU - Citi, Valentina AU - Citi V AD - Dipartimento di Farmacia, Universita di Pisa, Via Bonanno 6, I-56126, Pisa, Italy. FAU - Lisignoli, Gina AU - Lisignoli G AD - S.C. Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy. FAU - Manferdini, Cristina AU - Manferdini C AD - S.C. Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy. FAU - Calderone, Vincenzo AU - Calderone V AD - Dipartimento di Farmacia, Universita di Pisa, Via Bonanno 6, I-56126, Pisa, Italy. FAU - Grassi, Francesco AU - Grassi F AD - Laboratorio RAMSES, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136, Bologna, Italy. francesco.grassi@ior.it. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20170920 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Bone Density Conservation Agents) RN - 0 (Diphosphonates) RN - 0 (Isothiocyanates) RN - 3129-90-6 (isothiocyanic acid) RN - X1J18R4W8P (Alendronate) RN - YY9FVM7NSN (Hydrogen Sulfide) SB - IM MH - Alendronate/metabolism MH - Bone Density Conservation Agents/chemical synthesis/*metabolism MH - Cell Differentiation/drug effects MH - Cell Survival/drug effects MH - Cells, Cultured MH - Diphosphonates/chemical synthesis/*metabolism MH - Humans MH - Hydrogen Sulfide/*metabolism MH - Isothiocyanates/metabolism MH - Mesenchymal Stem Cells/drug effects MH - Osteoclasts/drug effects MH - Osteogenesis/*drug effects PMC - PMC5607332 COIS- The authors declare that they have no competing interests. EDAT- 2017/09/22 06:00 MHDA- 2019/06/30 06:00 PMCR- 2017/09/20 CRDT- 2017/09/22 06:00 PHST- 2017/05/30 00:00 [received] PHST- 2017/08/25 00:00 [accepted] PHST- 2017/09/22 06:00 [entrez] PHST- 2017/09/22 06:00 [pubmed] PHST- 2019/06/30 06:00 [medline] PHST- 2017/09/20 00:00 [pmc-release] AID - 10.1038/s41598-017-11608-z [pii] AID - 11608 [pii] AID - 10.1038/s41598-017-11608-z [doi] PST - epublish SO - Sci Rep. 2017 Sep 20;7(1):11940. doi: 10.1038/s41598-017-11608-z.