Development of hydroxy-based sphingosine kinase inhibitors and anti-inflammation in dextran sodium sulfate induced colitis in mice
摘要:
Sphingosine kinase (SphK)-catalyzed production of sphingosine-1-phosphate (S1P) regulates cell growth, survival and proliferation as well as inflammatory status in animals. In recent study we reported the N'-(3-(benzyloxy)benzylidene)-3,4,5-trihydroxybenzohydrazide scaffold as a potent SphK inhibitor. As a continuation of these efforts, 51 derivatives were synthesized and evaluated by SphK1/2 inhibitory activities for structure-activity relationship (SAR) study. Among them, 33 was identified as the most potent SphK inhibitor. Potency of 33 was also observed to efficiently decrease SphK1/2 expression in human colorectal cancer cells (HCT116) and significantly inhibit dextran sodium sulfate (DSS)-induced colitis as well as the decreased expression of interleukin (IL)-6 and cyclooxygenase-2 (COX-2) in mouse models. Collectively, 33 was validated as an effective SphK inhibitor, which can be served as anti-inflammatory agent to probably treat inflammatory bowel diseases in human. (C) 2016 Elsevier Ltd. All rights reserved.
Synthesis and Analysis of Anticonvulsant Activities of New 4-[2-(4- alkoxybenzylamino)ethyl]-2H-1,2,4-triazol-3(4H)-one Derivatives
作者:Qing-Kun Shen、Shi-Ben Wang、Guo-Hua Gong、Xiu-Mei Yin、Zhe-Shan Quan
DOI:10.2174/1570180812666141111235746
日期:2015.3.24
The present study involved the design and synthesis of new substituted 4-[2-(4-
alkoxybenzylamino) ethyl]-2H-1,2,4-triazol-3(4H)-one derivatives (8a-w) starting from 1,2-
ethanediamine. The final compounds were screened for their in vivo anticonvulsant activities and neurotoxicities
by maximal electroshock (MES) and rotarod tests, respectively. Among the compounds
studied, 4-[2-(4-butoxybenzylamino)ethyl]-2H-1,2,4-triazol-3(4H)-one hydrochloride (8b) was found
by intraperitoneal administration in mice to be the most potent compound with a median effective
dose (ED50) value of 33.2 mg/kg and a high protective index (PI) value of 11.4. Compound 8b showed significant oral activity
against MES-induced seizures in mice with an ED50 value of 83.1 mg/kg and a PI of 18.1. The results demonstrated
that compound 8b possessed better anticonvulsant activity and higher safety than the marketed drug carbamazepine.
[EN] INHIBITORS TARGETING DRUG-RESISTANT INFLUENZA A<br/>[FR] INHIBITEURS CIBLANT LA GRIPPE A PHARMACORÉSISTANTE
申请人:UNIV PENNSYLVANIA
公开号:WO2013086131A1
公开(公告)日:2013-06-13
Provided are compounds according to formula (la) or (lb) as described herein, that are capable of modulating the activity of influenza viruses (e.g., influenza A virus), for example, via interaction with the M2 transmembrane protein, and other similar viroporins. Also provided are methods for treating an influenza A-affected disease state or infection comprising administering a composition comprising one or more compounds according to according to formulas (la') or (lb), as described herein.
申请人:THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
公开号:US20150191439A1
公开(公告)日:2015-07-09
Provided are compounds according to formula (Ia) or (Ib) as described herein, that are capable of modulating the activity of influenza viruses (e.g., influenza A virus), for example, via interaction with the M2 transmembrane protein, and other similar viroporins. Also provided are methods for treating an influenza A-affected disease state or infection comprising administering a composition comprising one or more compounds according to according to formulas (Ia′) or (Ib), as described herein.