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Sphingomyelin synthase, lung cancer

Toshio Ohnishi, Chieko Hashizume, Makoto Taniguchi, Hidehiro Furumoto, Jia Han, Rongfen Gao, Shinichi Kinami, Takeo Kosaka, Toshiro Okazaki
Sphingomyelin synthase 2 (SMS2) is the synthetic enzyme of sphingomyelin (SM), which regulates membrane fluidity and microdomain structure. SMS2 plays a role in LPS-induced lung injury and inflammation; however, its role in inflammation-mediated tumorigenesis is unclear. We investigated the effect of SMS2 deficiency on dextran sodium sulfate (DSS)-induced murine colitis and found inhibition of DSS-induced inflammation in SMS2-deficient (SMS2(-/-)) mice. DSS treatment induced a significant increase in ceramide levels, with a decrease of SM levels in SMS2(-/-) colon tissue, and demonstrated attenuation of the elevation of both inflammation-related gene expression and proinflammatory cytokines and chemokines, leukocyte infiltration, and MAPK and signal transducer and activator of transcription 3 activation...
September 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
A V Rozhkova, M V Zinovyeva, A V Sass, I B Zborovskaya, S A Limborska, L V Dergunova
The investigation of molecular mechanisms contributing to cancer progression is the burning problem ofcurrent research. Considerable attention has been given to the study of gene expression in cancer cells. Sphingomyelin synthase 1 gene (SGMS1) is one of the genes whose expression can be altered in cancer. SMS1 enzyme, encoded by this gene, catalyzes the synthesis of sphingomyelin and diacylglycerol from phosphatidylcholine and ceramide. SMS1 may maintain the balance between cell death and survival by regulating the formation of the pro-apoptotic mediator ceramide and anti-apoptotic mediator diacylglycerol...
May 2014: Molekuliarnaia Biologiia
Jacques Robert
MS-209, a quinolone-derived sphingomyelin synthase inhibitor that blocks P-glycoprotein and multidrug resistance-associated protein-1, is under development by Schering for the potential treatment of multidrug resistant tumors. By March 2003, phase II trials in breast cancer and non-small-cell lung cancer had been initiated.
December 2004: Current Opinion in Investigational Drugs
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