Abstract:
:Insulin resistance is a complex altered metabolic condition characterized by impaired insulin signaling and implicated in the pathogenesis of serious human diseases, such as diabetes, obesity, neurodegenerative pathologies. In pursuing our aim to identify new agents able to improve cellular insulin sensitivity, we have synthesized new 4-[(5-arylidene-4-oxo-2-phenylimino/oxothiazolidin-3-yl)methyl]benzoic acids (5, 8) and evaluated their inhibitory activity towards human protein tyrosine phosphatases PTP1B, LMW-PTP and TCPTP, enzymes which are involved in the development of insulin resistance. Compounds 5 and 8 showed from moderate to significant selectivity toward PTP1B over both the highly homologous TCPTP and the two isoforms of human LMW-PTP. In addition, most of the tested compounds selectively inhibited LMW-PTP IF1 over the isoform IF2. Docking studies into the active sites of PTP1B and LMW-PTP aided the rationalization of the observed PTP inhibitory profile. Moreover, most tested compounds were capable to induce the insulin metabolic pathway in mouse C2C12 skeletal muscle cells by remarkably stimulating both IRβ phosphorylation and 2-deoxyglucose cellular uptake.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Ottanà R,Maccari R,Mortier J,Caselli A,Amuso S,Camici G,Rotondo A,Wolber G,Paoli Pdoi
10.1016/j.ejmech.2013.11.001subject
Has Abstractpub_date
2014-01-01 00:00:00pages
112-27eissn
0223-5234issn
1768-3254pii
S0223-5234(13)00731-9journal_volume
71pub_type
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