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An integrated molecular design strategy combining pharmacophore recognition and scaffold hopping was exploited to discover novel PTP1B inhibitors based on the known PTP1B inhibitor Ertiprotafib. A composite pharmacophore model was proposed from the interaction mode of Ertiprotafib, and 21 diverse molecules from five distinct structural classes were designed and synthesized accordingly. New compounds with considerable inhibition against PTP1B were identified from each series, and the most active compound 3a showed IC50 value of 1.3 μmol L(-1) against human recombinant PTP1B. Docking study indicated that the new inhibitors assumed binding modes similar to that of Ertiprotafib.
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http://dx.doi.org/10.1016/j.bmcl.2013.10.002 | DOI Listing |
Cell Mol Biol (Noisy-le-grand)
September 2025
Associate Professor, School of Pharmacy, Desh Bhagat University, Mandi Gobindgarh-Punjab 147301, India.
Alcoholic fatty liver disease (AFLD) is a leading cause of chronic liver disease worldwide, contributing to significant morbidity and mortality. Despite its growing prevalence, no FDA-approved pharmacological treatments exist, leaving lifestyle modifications as the primary intervention. AFLD pathogenesis involves a complex interplay of lipid accumulation, oxidative stress, insulin resistance, and inflammation, highlighting the need for innovative therapeutic approaches.
View Article and Find Full Text PDFEMBO J
August 2025
Key Laboratory of Metabolism and Molecular Medicine of the Ministry of Education; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences; Fudan University, 200032, Shanghai, China.
Bioactive glycerolysophospholipids (GLPs) are implicated in the pathogenesis of metabolic dysfunction-associated steatotic liver disease (MASLD) and obesity; however, the mechanisms underlying glycerolysophospholipid-mediated changes in insulin signaling remain poorly understood. Here, we identify the amino acid-metabolism enzyme asparaginase (ASPG) as a critical regulator of systemic fatty acid handling and insulin signal transduction. Hepatic ASPG expression levels negatively correlate with insulin sensitivity in humans.
View Article and Find Full Text PDFArterioscler Thromb Vasc Biol
September 2025
Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation (R.R., C.T.G.).
Background: Thrombin, a serine protease with increased activity in people with diabetes, signals through PAR (protease-activated receptor) 1 and 4 on endothelial cells (ECs). On these cells, PAR1 is a high-expressing, high-affinity, low-potency thrombin receptor, whereas PAR4 is a low-expressing, low-affinity, high-potency receptor. This study aims to determine how endothelial PARs influence diabetic pathology, thereby providing deeper insights into the roles and relationships between these receptors.
View Article and Find Full Text PDFBioorg Med Chem
November 2025
State Key Laboratory of Discovery and Utilization of Functional Components in Traditional Chinese Medicine, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Provincial Engineering Research Center for the Development and Appli
α-Glucosidase and protein tyrosine phosphatase 1B (PTP1B) are crucial targets for diabetes treatment, and inhibiting their activity simultaneously can delay the absorption of carbohydrates and enhance insulin sensitivity by modulating the insulin signaling pathway. In this study, novel coumarin-oxadiazole derivatives were prepared by targeting these enzymes. Among them, compound 5j exhibited dual inhibitory activity against α-glucosidase and PTP1B with IC₅₀ values of 30.
View Article and Find Full Text PDFMol Divers
July 2025
Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, 563006, People's Republic of China.
Diabetes mellitus, particularly type 2 diabetes (T2DM), is a major global health challenge characterized by persistent hyperglycemia resulting from insulin resistance. Protein tyrosine phosphatase 1B (PTP1B) has emerged as a key enzyme involved in regulating insulin signaling, making it a promising target for therapeutic interventions aimed at improving insulin sensitivity. However, the development of effective PTP1B inhibitors has been hindered by issues such as poor bioavailability and off-target effects.
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