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Biochemical and Structural Studies of Protein Tyrosine Phosphatase PTP‐PEST (PTPN12) in Search of Small Molecule Inhibitors

Chemical Biology and Drug Design

An in-house molecule library was screened using in silico molecular docking, and a myo-inositol derivative was identified as a potent hit molecule. The invitro biochemical assays validated that J1-65 inhibits PTP-PEST activity competitively and the inhibitor binding stabilizes the protein-ligand complex.

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The peptide DR3penA exhibits antifibrotic activity in multiple pulmonary fibrosis models induced by particulate and soluble chemical fibrogenic agents [Gastrointestinal, Hepatic, Pulmonary, and Renal]

ASPET

Based on the druggability of DR3penA, we sought to investigate its effects on respirable particulate silicon dioxide (SiO 2 )- and soluble chemical paraquat (PQ)-induced pulmonary fibrosis in this study by using western blot, RT-qPCR, immunofluorescence, H&E and Masson staining, immunohistochemistry and serum biochemical assays.

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Unique self-activating proteins for drug discovery

Drug Target Review

Å resolution) 6 is now being targeted for small molecule inhibitor discovery and development, by exploiting emergent computational tools to identify potential candidate compounds in silico and then test these predicted inhibitors in in vitro biochemical assays. NIH R01 DA048153 (to D.P.S.), 2022;298(8):102167.