1. Malabaricone C Attenuates Nonsteroidal Anti-Inflammatory Drug-Induced Gastric Ulceration by Decreasing Oxidative/Nitrative Stress and Inflammation and Promoting Angiogenic Autohealing
- Author
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Sreemoyee Chakraborti, Bolay Bhattacharya, Madhuri Basak, Tarun Mahata, Madhusudan Das, Sudipta Saha, Pranesh Kumar, Adele Stewart, Sandip K. Bandyopadhyay, and Biswanath Maity
- Subjects
0301 basic medicine ,Male ,Programmed cell death ,Physiology ,Angiogenesis ,medicine.drug_class ,Clinical Biochemistry ,Indomethacin ,Proton-pump inhibitor ,Inflammation ,Pharmacology ,Protective Agents ,Biochemistry ,Anti-inflammatory ,Proinflammatory cytokine ,03 medical and health sciences ,chemistry.chemical_compound ,Mice ,medicine ,Animals ,Stomach Ulcer ,Molecular Biology ,General Environmental Science ,Wound Healing ,030102 biochemistry & molecular biology ,Cell Death ,Dose-Response Relationship, Drug ,Molecular Structure ,Neovascularization, Pathologic ,business.industry ,Anti-Inflammatory Agents, Non-Steroidal ,Cell Biology ,Resorcinols ,digestive system diseases ,Mitochondria ,Vascular endothelial growth factor ,Oxidative Stress ,Original Research Communications ,030104 developmental biology ,chemistry ,General Earth and Planetary Sciences ,medicine.symptom ,Endostatin ,business - Abstract
Aims: Nonsteroidal anti-inflammatory drugs (NSAIDs), among the most commonly used drugs worldwide, are associated with gastrointestinal (GI) complications that severely limit the clinical utility of this essential class of pain medications. Here, we mechanistically dissect the protective impact of a natural product, malabaricone C (Mal C), on NSAID-induced gastropathy. Results: Mal C dose dependently diminished erosion of the stomach lining and inflammation in mice treated with NSAIDs with the protective impact translating to improvement in survival. By decreasing oxidative and nitrative stress, Mal C treatment prevented NSAID-induced mitochondrial dysfunction and cell death; nuclear factor κ-light-chain enhancer of activated B cell induction, release of proinflammatory cytokines and neutrophil infiltration; and disruptions in the vascular endothelial growth factor/endostatin balance that contributes to mucosal autohealing. Importantly, Mal C failed to impact the therapeutic anti-inflammatory properties of multiple NSAIDs in a model of acute inflammation. In all assays tested, Mal C proved as or more efficacious than the current first-line therapy for NSAID-dependent GI complications, the proton pump inhibitor omeprazole. Innovation: Given that omeprazole-mediated prophylaxis is, itself, associated with a shift in NSAID-driven GI complications from the upper GI to the lower GI system, there is a clear and present need for novel therapeutics aimed at ameliorating NSAID-induced gastropathy. Mal C provided significant protection against NSAID-induced gastric ulcerations impacting multiple critical signaling cascades contributing to inflammation, cell loss, extracellular matrix degradation, and angiogenic autohealing. Conclusion: Thus, Mal C represents a viable lead compound for the development of novel gastroprotective agents.
- Published
- 2019