Synthesis and Biological Validation of a Harmine-Based, Central Nervous System (CNS)-Avoidant, Selective, Human β-Cell Regenerative Dual-Specificity Tyrosine Phosphorylation-Regulated Kinase A (DYRK1A) Inhibitor
摘要:
Recently, our group identified that harmine is able to induce beta-cell proliferation both in vitro and in vivo, mediated via the DYRK1A-NFAT pathway. Since, harmine suffers from a lack of selectivity, both against other kinases and CNS off-targets, we therefore sought to expand structure-activity relationships for harmine's DYRK1A activity, to enhance selectivity for off-targets while retaining human beta-cell proliferation activity. We carried out optimization of the 9-N-position of harmine to synthesize 29 harmine-based analogs. Several novel inhibitors showed excellent DYRK1A inhibition and human beta-cell proliferation capability. An optimized DYRK1A inhibitor, 2-2c, was identified as a novel, efficacious in vivo lead candidate. 2-2c also demonstrates improved selectivity for kinases and CNS off-targets, as well as in vivo efficacy for beta-cell proliferation and regeneration at lower doses than harmine. Collectively, these findings demonstrate that 2-2c is a much improved in vivo lead candidate as compared to harmine for the treatment of diabetes.
ALKYL-AMINE HARMINE DERIVATIVES FOR PROMOTING BONE GROWTH
申请人:OssiFi Inc.
公开号:US20140288068A1
公开(公告)日:2014-09-25
In one aspect, the invention provides compounds of Formula I, and salts, hydrates and isomers thereof. In another aspect, the invention provides a method of promoting bone formation in a subject in need thereof by administering to the subject a therapeutically effective amount of a compound of Formula I, Formula II, or Formula III. The present invention also provides orthopedic and periodontal devices, as well as methods for the treatment of renal disease and cancer, using a compound of Formula I, Formula II, or Formula III.
Structure–activity relationship study of beta-carboline derivatives as haspin kinase inhibitors
作者:Gregory D. Cuny、Natalia P. Ulyanova、Debasis Patnaik、Ji-Feng Liu、Xiangjie Lin、Ken Auerbach、Soumya S. Ray、Jun Xian、Marcie A. Glicksman、Ross L. Stein、Jonathan M.G. Higgins
DOI:10.1016/j.bmcl.2012.01.028
日期:2012.3
Haspin is a serine/threonine kinase that phosphorylates Thr-3 of histone H3 in mitosis that has emerged as a possible cancer therapeutic target. High throughput screening of approximately 140,000 compounds identified the beta-carbolines harmine and harmol as moderately potent haspin kinase inhibitors. Based on information obtained from a structure-activity relationship study previously conducted for an acridine series of haspin inhibitors in conjunction with in silico docking using a recently disclosed crystal structure of the kinase, harmine analogs were designed that resulted in significantly increased haspin kinase inhibitory potency. The harmine derivatives also demonstrated less activity towards DYRK2 compared to the acridine series. In vitro mouse liver microsome stability and kinase profiling of a representative member of the harmine series (42, LDN-211898) are also presented. (C) 2012 Elsevier Ltd. All rights reserved.
Beta-Carbolines as Inhibitors of Haspin and DYRK Kinases
申请人:Higgins Jonathan
公开号:US20130231360A1
公开(公告)日:2013-09-05
The present disclosure is directed to compounds of Formula (I) which are inhibitors of Haspin kinase and DYRK kinases. The compounds of the present disclosure, and compositions thereof, are useful in the treatment of disease related to Haspin kinase and DYRK kinase expression and/or activity.
COMPOUNDS FOR BONE GROWTH
申请人:OsteoQC, Inc
公开号:US20170298059A1
公开(公告)日:2017-10-19
In one aspect, the invention provides compounds of Formula I, and salts, hydrates and isomers thereof. In another aspect, the invention provides a method of promoting bone formation in a subject in need thereof by administering to the subject a therapeutically effective amount of a compound of Formula I, Formula II, or Formula III. The present invention also provides orthopedic and periodontal devices, as well as methods for the treatment of renal disease and cancer, using a compound of Formula I, Formula II, or Formula III.