Information from the abstract
Cisplatin is an effective platinum-based chemotherapeutic agent used to treat a variety of cancers. However, its clinical utility is limited by dose-dependent neurotoxicity, yet no approved neuroprotective strategy currently exists. Our integrated cellular, metabolic, and in vivo approaches unraveled the neuroprotective potential of Areca catechu ethyl acetate extract (AC-EA) against cisplatin-induced neurotoxicity. Importantly, AC-EA did not reduce cisplatin-induced cytotoxicity in A549 lung cancer cells. In HT22 hippocampal neurons, AC-EA restored cell viability, suppressed reactive oxygen species generation, preserved mitochondrial-associated fluorescence, and attenuated phosphorylated histone H2AX (γH2AX)-marked DNA damage. AC-EA was associated with increased pNRF2 expression, consistent with activation of NRF2-dependent antioxidant signaling, suppressed inducible nitric oxide synthase iNOS (inducible nitric oxide synthase )-mediated neuroinflammation, and prevented the depletion of total AKT (protein kinase B) protein. Untargeted metabolomics and Caenorhabditis elegans survival assays were performed for mechanistic and in vivo validation. Metabolomics data showed restoration of several critical amino acids, including L-tyrosine and β-alanine, disrupted by cisplatin. Moreover, C. elegans studies confirmed in vivo activation of antioxidants via the SKN-1/GST-4 (glutathione S-transferase 4) pathway. While AC-EA shows neuroprotective potential, arecoline’s toxicity demands caution. To our knowledge, this is the first study to demonstrate the neuroprotective activity of A. catechu against cisplatin-induced neurotoxicity, laying the foundation for developing plant-derived adjunct therapies for chemotherapy-associated neuropathy.
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Related topics: Cancer-related cognitive impairment studies · Chemotherapy-induced organ toxicity mitigation · Oral health in cancer treatment
Thai researcher and institutional participation
Kishoree Krishna Kumaree · Clerance Su Yee Cheong · Kanika Verma · Kartina Nadyani · Nureesun Mahamud · Pornpimol Mahamad · Tewin Tencomnao · Anchalee Prasansuklab · James Michael Brimson · Chulalongkorn University
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