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 Chemjournal_title
Journal of medicinal chemistryauthors
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 RJdoi
10.1021/acs.jmedchem.9b01379subject
Has Abstractpub_date
2020-03-26 00:00:00pages
2986-3003issue
6eissn
0022-2623issn
1520-4804journal_volume
63pub_type
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