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Target identification is an essential step in drug discovery. It facilitates an understanding of drug action and potential toxicities and offers opportunities to repurpose drug candidates. HP-1, a potent EGFR (epidermal growth factor receptor) mutant inhibitor, was developed by the group in an effort to treat acquired resistance in nonsmall cell lung cancer (NSCLC), but its cellular off-targets were not identified. An activity-based probe, HJ-1, was created followed by chemical proteomics and bioimaging studies. A total of 13 protein hits, including EGFR and NT5DC1, were identified by pull-down/LC-MS. Subsequent validation experiments indicated the involvement of a major off-target, NT5DC1, in the biological function of HP-1.
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http://dx.doi.org/10.1021/acsmedchemlett.1c00651 | DOI Listing |
J Med Chem
September 2025
State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, China.
Three generations of EGFR tyrosine kinase inhibitors (EGFR-TKIs) have shown clinical efficacy in nonsmall cell lung cancer (NSCLC), but acquired resistance mutations─especially the -EGFR─remain a major challenge. Here, we report the identification of a series of pyrrolo[2,3-]pyrimidine derivatives that inhibit C797S-mediated EGFR triple mutants. Among them, compound shows subnanomolar IC values against Ba/F3 EGFR and Ba/F3 EGFR, while sparing wild-type EGFR.
View Article and Find Full Text PDFDrug Dev Res
September 2025
Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, Punjab, India.
The epidermal growth factor receptor (EGFR) is a common diver gene for lung cancer (NSCLC), which leads to an increasing death rate worldwide. This study reports the design, synthesis, and biological evaluation of triazole-clubbed pyrimidine derivatives (RDa-RDm) as potential anticancer agents. Thirteen compounds were synthesized and screened against the A549 lung cancer cell line.
View Article and Find Full Text PDFRSC Med Chem
August 2025
Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Suez Canal University 4.5 Km the Ring Road Ismailia 41522 Egypt.
Protein kinases are central regulators of cell signaling and play pivotal roles in a wide array of diseases, most notably cancer and autoimmune disorders. The clinical success of kinase inhibitors-such as imatinib and osimertinib-has firmly established kinases as valuable drug targets. However, the development of selective, potent inhibitors remains challenging due to the conserved nature of the ATP-binding site, off-target effects, resistance mutations, and patient-specific variability.
View Article and Find Full Text PDFCurr Alzheimer Res
September 2025
School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, 47500 Subang Jaya, Selangor, Malaysia.
Introduction: Alzheimer's disease is expressed as chronic neuroinflammation in the brain, which results in neuronal dysfunction, aberrant protein folding, and declining cognitive abilities. miR-146a-5p is a potent anti-inflammatory agent that can be used to treat several inflammatory diseases, as well as promote wound healing. Our research aimed to utilize network pharmacology to elucidate the therapeutic potential of miR-146a-5p in treating Alzheimer's disease using a biocomputational approach.
View Article and Find Full Text PDFBioorg Chem
August 2025
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain Shams University, P.O. Box 11566, Abbassia, Cairo, Egypt. Electronic address:
Two series of triazolo[1,5-a]pyrimidines were designed and synthesized as antiproliferative agents targeting multi kinase inhibition aiming to increase potency and combat drug resistance. The synthesized compounds were tested for their antiproliferative activity. The triazolopyrimidine derivatives 9b, 9c, 12b and 12c showed promising anticancer activities, in particular, compounds 12b and 12c displayed broad spectrum antiproliferative potential against NCI cancer cell lines with GI mean value of 10.
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