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Studies on the ATP Binding Site of Fyn Kinase for the Identification of New Inhibitors and Their Evaluation as Potential Agents against Tauopathies and Tumors.

Abstract：

:Fyn is a member of the Src-family of nonreceptor protein-tyrosine kinases. Its abnormal activity has been shown to be related to various human cancers as well as to severe pathologies, such as Alzheimer's and Parkinson's diseases. Herein, a structure-based drug design protocol was employed aimed at identifying novel Fyn inhibitors. Two hits from commercial sources (1, 2) were found active against Fyn with K(i) of about 2 μM, while derivative 4a, derived from our internal library, showed a K(i) of 0.9 μM. A hit-to-lead optimization effort was then initiated on derivative 4a to improve its potency. Slightly modifications rapidly determine an increase in the binding affinity, with the best inhibitors 4c and 4d having K(i)s of 70 and 95 nM, respectively. Both compounds were found able to inhibit the phosphorylation of the protein Tau in an Alzheimer's model cell line and showed antiproliferative activities against different cancer cell lines.

journal_name

J Med Chem

journal_title

Journal of medicinal chemistry

authors

Tintori C,La Sala G,Vignaroli G,Botta L,Fallacara AL,Falchi F,Radi M,Zamperini C,Dreassi E,Dello Iacono L,Orioli D,Biamonti G,Garbelli M,Lossani A,Gasparrini F,Tuccinardi T,Laurenzana I,Angelucci A,Maga G,Schenone S

doi

10.1021/acs.jmedchem.5b00140

subject

Has Abstract

pub_date

2015-06-11 00:00:00

pages

4590-609

issue

11

eissn

0022-2623

issn

1520-4804

journal_volume

58

pub_type

杂志文章

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