S1PR2 inhibitors potently reverse 5-FU resistance by downregulating DPD expression in colorectal cancer
摘要:
In this study, S1PR2 was reckoned as a brand-new GPCR target for designing inhibitors to reverse 5-FU resistance. Herein a series of pyrrolidine pyrazoles as the S1PR2 inhibitors were designed, synthesized and evaluated for their activities of anti-FU-resistance. Among them, the most promising compound JTE-013, exhibited excellent inhibition on DPD expression and potent anti-FU-resistance activity in various human cancer cell lines, along with the in vivo HCT116(DPD) cells xenograft model, in which the inhibition rate of 5-FU was greatly increased from 13.01%-75.87%. The underlying mechanism was uncovered that JTE-013 demonstrated an anti-FU-resistance activity by blocking S1PR2 internalization to the endoplasmic reticulum (ER), which inhibited the degradation of 5-FU into alpha-fluoro-beta-alanine (FBAL) by downregulating tumoral DPD expression. Overall, JTE-013 could serve as the lead compound for the discovery of new anti-FU-resistance drugs.Significance: This study provides novel insights that S1PR2 inhibitors could sensitize 5-FU therapy in colorectal cancer.
The present invention relates to a novel N-phenyl-(2R,5S)dimethylpiperazine derivatives useful as antiandrogenic agent which exhibits a sufficient prostate gland reducing effect as compared with conventional compounds and are excellent in oral activity. The compound of the present application is useful in preventing or treating prostate cancer, benign prostatic hyperplasia, and the like. The present invention also provides a novel intermediate useful in producing the compound of the present invention.
The present invention relates to a novel N-phenyl-(2R,5S)dimethylpiperazine derivatives useful as antiandrogenic agent which exhibits a sufficient prostate gland reducing effect as compared with conventional compounds and are excellent in oral activity. The compound of the present application is useful in preventing or treating prostate cancer, benign prostatic hyperplasia, and the like. The present invention also provides a novel intermediate useful in producing the compound of the present invention.
Phenyl and pyridyl compounds for inflammation and immune-related uses
申请人:Jiang Jun
公开号:US20070275960A1
公开(公告)日:2007-11-29
The invention relates to compounds of structural formula (I):
or a pharmaceutically acceptable salt, solvate, clathrate, or prodrug thereof, wherein R
1
, X
1
, X
2
, Y, Z, L, and n are defined herein. The compounds are useful as immunosuppressive agents and for treating and preventing inflammatory conditions, allergic disorders, and immune disorders.
The present invention relates to a novel N-phenyl-(2R,5S)dimethylpiperazine derivatives useful as antiandrogenic agent which exhibits a sufficient prostate gland reducing effect as compared with conventional compounds and are excellent in oral activity. The compound of the present application is useful in preventing or treating prostate cancer, benign prostatic hyperplasia, and the like. The present invention also provides a novel intermediate useful in producing the compound of the present invention.