Small molecules enhance functional O-mannosylation of Alpha-dystroglycan
摘要:
Alpha-dystroglycan (alpha-DG), a highly glycosylated receptor for extracellular matrix proteins, plays a critical role in many biological processes. Hypoglycosylation of alpha-DG results in various types of muscular dystrophies and is also highly associated with progression of majority of cancers. Currently, there are no effective treatments for those devastating diseases. Enhancing functional O-mannosyl glycans (FOG) of alpha-DG on the cell surfaces is a potential approach to address this unmet challenge. Based on the hypothesis that the cells can up-regulate FOG of alpha-DG in response to certain chemical stimuli, we developed a cell-based high-throughput screening (HTS) platform for searching chemical enhancers of FOG of alpha-DG from a large chemical library with 364,168 compounds. Sequential validation of the hits from a primary screening campaign and chemical works led to identification of a cluster of compounds that positively modulate FOG of alpha-DG on various cell surfaces including patient-derived myoblasts. These compounds enhance FOG of alpha-DG by almost ten folds, which provide us powerful tools for O-mannosylation studies and potential starting points for the development of drug to treat dystroglycanopathy. (c) 2015 Elsevier Ltd. All rights reserved.
Small-compound enhancers for functional O-mannosylation of alpha-dystroglycan, and uses thereof
申请人:Wu Xiaohua
公开号:US10221168B1
公开(公告)日:2019-03-05
The present invention provides compounds that can enhance functional O-mannosylation of proteins including alpha-dystroglycan. Also provided are methods of preparation of the compounds defined by the formula I. Also provided are the methods of using the compounds or the pharmaceutical acceptable salts or prodrugs thereof in treating and preventing subjects suffering from the diseases including muscular dystrophies and cancers.
TRIAZOLE DERIVATIVES HAVING ANTIFUNGAL ACTIVITY, METHOD FOR THE PREPARATION THEREOF, AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME
申请人:Kim Bum Tae
公开号:US20100144712A1
公开(公告)日:2010-06-10
A triazole derivative of formula 1 or a pharmaceutically acceptable salt, hydrate, solvate or isomer thereof is superior to the conventional antifungal drugs in antifungal activity against a wide spectrum of pathogenic fungi, and has advantageously low toxicity.
PROPARGYL-TRIFLUOROMETHOXY-AMINOBENZOTHIAZOLE DERIVATIVES, THEIR PREPARATION AND USE
申请人:Falb Eliezer
公开号:US20130172364A1
公开(公告)日:2013-07-04
Disclosed are novel derivatives of propargyl-trifluoromethoxy-amino-benzothiazole which are effective in treating neurologic disorders, including Parkinson's disease and multiple sclerosis.
BICYCLIC HETEROARLY ANALOGUES AS GPR119 MODULATORS
申请人:Ye Xiang-Yang
公开号:US20130053345A1
公开(公告)日:2013-02-28
Novel compounds of structure Formula I: or an enantiomer, diastereomer, tautomer, prodrug or salt thereof, wherein A, D, Di, E, J, L, n, Q, R
2
and R
4
are defined herein, are provided which are GPR119 G protein-coupled receptor modulators. GPR119 G protein-coupled receptor modulators are useful in treating, preventing, or slowing the progression of diseases requiring GPR119 G protein-coupled receptor modulator therapy. Thus, the disclosure also concerns compositions comprising these novel compounds and methods of treating diseases or conditions related to the activity of the GPR119 G protein-coupled receptor by using any of these novel compounds or a composition comprising any of such novel compounds.