Method of inhibiting neurotrophin-receptor binding
申请人:——
公开号:US20030186901A1
公开(公告)日:2003-10-02
The present invention relates to compositions which inhibit the binding of nerve growth factor to the p75
NTR
common neurotrophin receptor and methods of use thereof. In one embodiment, the compound which inhibits binding of nerve growth factor to p75
NTR
comprises, particularly when bound to nerve growth factor, at least two of the following: (1) a first electronegative atom or functional group positioned to interact with Lys
34
of nerve growth factor; (2) a second electronegative atom or functional group positioned to interact with Lys
95
of nerve growth factor; (3) a third electronegative atom or functional group positioned to interact with Lys
88
of nerve growth factor; (4) a fourth electronegative atom or functional group positioned to interact with Lys
32
of nerve growth factor; and (5) a hydrophobic moiety which interacts with the hydrophobic region formed by Ile
31
, Phe
101
and Phe
86
of nerve growth factor.
Molecular design, synthesis and biological evaluation of cyclic imides bearing benzenesulfonamide fragment as potential COX-2 inhibitors. Part 2
作者:Ibrahim A. Al-Suwaidan、Amer M. Alanazi、Adel S. El-Azab、Abdulrahman M. Al-Obaid、Kamal E.H. ElTahir、Azza R. Maarouf、Mohamed A. Abu El-Enin、Alaa A.-M. Abdel-Aziz
DOI:10.1016/j.bmcl.2013.02.107
日期:2013.5
A group of cyclic imides (1-10) was designed for evaluation as a selective COX-2 inhibitors and investigated in vivo for their anti-inflammatory activity. Compounds 6a, 6b, 8a, 8b, 9a, 9b, 10a and 10b were proved to be potent COX-2 inhibitors with IC50 range of 0.1-4.0 mu M. In vitro COX-1/COX-2 inhibition structure-activity studies identified compound 8a as a highly potent (IC50 = 0.1 mu M), and an extremely selective [COX-2 (SI) > 1000] comparable to celecoxib [COX-2 (SI) > 384], COX-2 inhibitor that showed superior anti-inflammatory activity (ED50 = 72.4 mg/kg) relative to diclofenac (ED50 = 114 mg/kg). Molecular modeling was carried out through docking the designed compounds into the COX-2 binding site to predict if these compounds have analogous binding mode to the COX-2 inhibitors. The study showed that the homosulfonamide fragment of 8a inserted deep inside the 2 degrees-pocket of the COX-2 active site, where the SO2NH2 group underwent H-bonding interaction with Gln(192)(2.95 angstrom), Phe(518)(2.82 angstrom) and Arg(513)(2.63 and 2.73 angstrom). Docking study of the synthesized compound 8a into the active site of COX-2 revealed a similar binding mode to SC-558, a selective COX-2 inhibitor. (C) 2013 Elsevier Ltd. All rights reserved.
METHOD OF INHIBITING NEUROTROPHIN-RECEPTOR BINDING