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Celecoxib paradoxically induces COX-2 expression and astrocyte activation through the ERK/JNK/AP-1 signaling pathway in the cerebral cortex of rats.
Neurochem Int
December 2024
Master and PhD Programs in Pharmacology and Toxicology, School of Medicine, Tzu Chi University, Hualien, 970, Taiwan; Department of Pharmacology, School of Medicine, Tzu Chi University, Hualien, 970, Taiwan. Electronic address:
Previous studies have shown that celecoxib or NSAID may paradoxically induce cyclooxygenase-2 (COX-2) expression and trigger inflammation-like responses in airway smooth muscle cells and renal mesangial cells. Despite the extensive research on celecoxib, its atypical biological effect on the induction of COX-2 in astroglial cells within the central nervous system (CNS) remains unexplored. In the present study, we investigated the impact of celecoxib on COX-2 and Glial Fibrillary Acidic Protein (GFAP) expression and explored the mechanisms underlying celecoxib-regulated COX-2 expression in cortical astrocytes of rats.
View Article and Find Full Text PDFNon-steroidal anti-inflammatory drugs (NSAIDs) are popular choices for the mitigation of pain and inflammation; however, they are accompanied by side effects in the gastrointestinal and cardiovascular systems. We compared the effects of naproxen, a traditional NSAID, and celecoxib, a cyclooxygenase - 2 (Cox-2) inhibitor, in humans. Our findings showed a decrease in tryptophan and kynurenine levels in plasma of volunteers treated with naproxen.
View Article and Find Full Text PDFINFLUENCE OF CONFORMAL RADIOTHERAPY IN COMBINATION WITH RADIOMODIFIERS ON THE CONTENT OF VEGF, COX-2, AND PGE-2 IN BLOOD SERUM OF PATIENTS WITH HEAD AND NECK SQUAMOUS CELL CARCINOMA.
Exp Oncol
December 2024
State Organization «Grigoriev Institute for Medical Radiology and Oncology of the National Academy of Medical Sciences of Ukraine», Kharkiv, Ukraine.
Background: The development of new approaches to modeling tumor radiosensitivity in patients with head and neck squamous cell carcinoma (HNSCC) is an important problem for overcoming tumor radioresistance. New agents for radiomodification are inhibitors of the enzyme cyclooxygenase-2 (COX-2). The study of markers of radioresistance in cancer patients undergoing radiotherapy (RT) in combination with COX-2 inhibitors and chemotherapy may contribute to the effectiveness of RT.
View Article and Find Full Text PDFMetabolomic Response to Non-Steroidal Anti-Inflammatory Drugs.
bioRxiv
December 2024
Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.
Non-steroidal anti-inflammatory drugs (NSAIDs) are popular choices for the mitigation of pain and inflammation; however, they are accompanied by side effects in the gastrointestinal and cardiovascular systems. We compared the effects of naproxen, a traditional NSAID, and celecoxib, a cyclooxygenase -2 (Cox-2) inhibitor, in humans. Our findings showed a decrease in tryptophan and kynurenine levels in plasma of volunteers treated with naproxen.
View Article and Find Full Text PDFTreatment of cancer-associated fibroblast-like cells with celecoxib enhances the anti-cancer T helper 1/Treg responses in breast cancer.
Naunyn Schmiedebergs Arch Pharmacol
December 2024
Department of Medical Immunology, School of Medicine, Kerman University of Medical Sciences, Pajoohesh Sq, Kerman, 7616914111, Iran.
Tumor inflammation, as one of the hallmarks of cancer, has been the target for anti-cancer treatments. Celecoxib is a selective inhibitor of the enzyme cycloxygenase-2 (COX-2) and inhibits the production of PGE2, which is an important mediator of tumor inflammation produced by cancer cells and cells of the tumor microenvironment. In this study, we aimed at inhibiting COX-2 using celecoxib, expressed in cancer-associated fibroblast (CAF)-like cells isolated from breast cancer and evaluated the alterations in their cytokine profile and gene expression.
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