Potent Triazole Bisphosphonate Inhibitor of Geranylgeranyl Diphosphate Synthase
作者:Veronica S. Wills、Cheryl Allen、Sarah A. Holstein、David F. Wiemer
DOI:10.1021/acsmedchemlett.5b00334
日期:2015.12.10
Studies of triazole bisphosphonates have resulted in identification of a potent inhibitor of geranylgeranyl diphosphate synthase (IC50 = 45 nM) with very good selectivity for this enzyme over farnesyl diphosphate synthase (IC50 = 28 mu M). This compound also potently disrupts geranylgeranylation and induces cytotoxicity in human myeloma cells at submicromolar levels, suggesting that it may serve as a lead compound for treatment of malignancies characterized by excessive protein secretion.
ω-Hydroxy isoprenoid bisphosphonates as linkable GGDPS inhibitors
作者:Nazmul H. Bhuiyan、Michelle L. Varney、Deep S. Bhattacharya、William M. Payne、Aaron M. Mohs、Sarah A. Holstein、David F. Wiemer
DOI:10.1016/j.bmcl.2019.126633
日期:2019.10
The enzyme geranylgeranyl diphosphate synthase (GGDPS) is a potential therapeutic target for multiple myeloma. Malignant plasma cells produce and secrete large amounts of monoclonal protein, and inhibition of GGDPS results in disruption of protein geranylgeranylation which in turn impairs intracellular protein trafficking. Our previous work has demonstrated that some isoprenoid triazole bisphosphonates are potent and selective inhibitors of GGDPS. To explore the possibility of selective delivery of such compounds to plasma cells, new analogues with an omega-hydroxy group have been synthesized and examined for their enzymatic and cellular activity. These studies demonstrate that incorporation of the omega-hydroxy group minimally impairs GGDPS inhibitory activity. Furthermore conjugation of one of the novel omega-hydroxy GGDPS inhibitors to hyaluronic acid resulted in enhanced cellular activity. These results will allow future studies to focus on the in vivo biodistribution of HA-conjugated GGDPS inhibitors.
Parr, William J. E., Journal of Chemical Research - Part S