The enantiomers of gossypol have been resolved by preparative HPLC of diastereomeric Schiff's base derivatives on a chiral bonded phase. Whereas (+)-gossypol has previously been reported to be inactive, (-)-gossypol is now shown to be active as a male oral antifertility agent in hamsters.
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Gossypol enhances ponatinib's cytotoxicity against human hepatocellular carcinoma cells by involving cell cycle arrest, p-AKT/LC3II/p62, and Bcl2/caspase-3 pathways.
Toxicol Rep
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Department of Pharmacology, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, Giza 12411, Egypt.
Despite significant breakthroughs in frontline cancer research and chemotherapy for hepatocellular carcinoma (HCC), many of the suggested drugs have high toxic side effects and resistance, limiting their clinical utility. Exploring potential therapeutic targets or novel combinations with fewer side effects is therefore crucial in combating this dreadful disease. The current study aims to use a novel combination of ponatinib and gossypol against the HepG2 cell line.
View Article and Find Full Text PDFGossypol is a natural product with good antimalarial activity against Plasmodium falciparum clinical isolates.
Sci Rep
January 2025
West African Centre for Cell Biology of Infectious Pathogens, University of Ghana, Accra, Ghana.
Gossypol has demonstrated significant antimalarial activity against chloroquine-resistant and susceptible Plasmodium falciparum parasites. However, data on its potency in clinical isolates of P. falciparum remains limited.
View Article and Find Full Text PDFDendrimer-Mediated Generation of a Metal-Phenolic Network for Antibody Delivery to Elicit Improved Tumor Chemo/Chemodynamic/Immune Therapy.
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State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China.
To simplify the composition and improve the efficacy of metal-phenolic network (MPN)-based nanomedicine, herein, we designed an MPN platform to deliver programmed death ligand-1 (PD-L1) antibody (anti-PD-L1) for combined tumor chemo/chemodynamic/immune therapy. Here, generation 5 poly(amidoamine) dendrimers conjugated with gossypol (Gos) through boronic ester bonds were used as a synthetic polyphenol to coordinate Mn, and then complexed with anti-PD-L1 to obtain the nanocomplexes (for short, DPGMA). The prepared DPGMA exhibited good water dispersibility with a hydrodynamic size of 166.
View Article and Find Full Text PDFLarge Language Model-Assisted Genotoxic Metal-Phenolic Nanoplatform for Osteosarcoma Therapy.
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BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan, 610065, China.
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A Spin-Labeled Derivative of Gossypol.
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N.D. Zelinsky Institute of Organic Chemistry, Leninsky Ave. 47, Moscow 119991, Russia.
Gossypol and its derivatives arouse interest due to their broad spectrum of biological activities. Despite its wide potential application, there is no reported example of gossypol derivatives bearing stable radical functional groups. The first gossypol nitroxide hybrid compound was prepared here via formation of a Schiff base.
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