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.

Abstract:

:Recently, our group identified that harmine is able to induce β-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 β-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 β-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 β-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.

journal_name

J Med Chem

authors

Kumar K,Wang P,Wilson J,Zlatanic V,Berrouet C,Khamrui S,Secor C,Swartz EA,Lazarus M,Sanchez R,Stewart AF,Garcia-Ocana A,DeVita RJ

doi

10.1021/acs.jmedchem.9b01379

subject

Has Abstract

pub_date

2020-03-26 00:00:00

pages

2986-3003

issue

6

eissn

0022-2623

issn

1520-4804

journal_volume

63

pub_type

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