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Alterations of colonic sensitivity and gastric dysmotility after acute cisplatin and granisetron

AuthorsMartín-Ruíz, Marta; Uranga-Ocio, José Antonio; Mosinska, Paula; Fichna, Jakub; Nurgali, Kulmira; Martín, M. Isabel ; Abalo, Raquel
Visceral sensitivity
Gastric dysmotility
Issue Date2019
PublisherJohn Wiley & Sons
CitationNeurogastroenterology and Motility 31(3): e13499 (2019)
Abstract[Background] Cisplatin is a highly emetogenic antineoplastic drug and induces peripheral neuropathy when given in cycles. Granisetron, a 5-HT3 antagonist, is clinically used to prevent chemotherapy-induced nausea/emesis and abdominal pain in irritable bowel syndrome. The effects of cisplatin on visceral sensitivity and those of granisetron in the context of cancer chemotherapy are not well known. [Methods] Adult male Wistar rats received two intraperitoneal injections 30 minutes apart: granisetron (1 mg kg)/vehicle and cisplatin (6 mg kg)/vehicle. Thereafter, nausea-like behavior was measured as bedding intake for 4 hours, and gastric dysmotility was measured radiographically for 8 hours. Gastric weight and size were determined ex vivo and samples of the forestomach, corpus, ileum, and colon were obtained for histological analysis at 4 and 30 hours after cisplatin/vehicle. Visceral sensitivity was measured as abdominal contractions in response to mechanical intracolonic stimulation 2 hours after cisplatin/vehicle. [Key Results] Cisplatin-induced bedding intake and gastric dysmotility, and granisetron blocked these effects, which occurred in the absence of frank mucositis. Visceral sensitivity was reduced to a similar extent by both drugs alone or in combination. [Conclusions and Inferences] Cisplatin-induced bedding intake and gastric dysmotility were blocked by granisetron, confirming the involvement of serotonin acting on 5-HT3 receptors. Unexpectedly, visceral sensitivity to colonic distension was reduced, to the same extent, by cisplatin, granisetron, and their combination, suggesting important mechanistic differences with nausea and gastric dysmotility that warrant further investigation.
Publisher version (URL)http://dx.doi.org/10.1111/nmo.13499
Identifiersdoi: 10.1111/nmo.13499
issn: 1350-1925
e-issn: 1365-2982
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