Analgesic and preventive effects of donepezil in animal models of chemotherapy-induced peripheral neuropathy: Involvement of spinal muscarinic acetylcholine M2 receptors - 20/04/22
, Catherine Mattévi a
, Cristelle Dalbos b
, Youssef Aissouni b
, Eric Chapuy b
, Pierre-Yves Martin b
, Aurore Collin b
, Damien Richard c
, Charles Dumontet d
, Jérôme Busserolles b
, Sakahlé Condé e
, David Balayssac f, ⁎ 
Abstract |
Background |
Donepezil, a cholinesterase inhibitor approved in Alzheimer’s disease, has demonstrated analgesic and preventive effects in animal models of oxaliplatin-induced neuropathy. To improve the clinical interest of donepezil for the management and prevention of chemotherapy-induced peripheral neuropathy (CIPN), a broader validation is required in different animal models of CIPN. Methods: using rat models of CIPN (bortezomib, paclitaxel, and vincristine), the analgesic and preventive efficacies of donepezil were evaluated on tactile, cold and heat hypersensitivities. The involvement of muscarinic M2 acetylcholine receptors (m2AChRs) in analgesic effects was investigated at the spinal level. The absence of interference of donepezil with the cytotoxic effect of chemotherapy has been controlled in cancer cell lines. Results: the analgesic efficacy of donepezil was demonstrated for all CIPN models, mainly on tactile hypersensitivity (maximal efficacy at 60 min, p < 0.05 vs. vehicle group). This effect was suppressed by an intrathecal injection of methoctramine (m2AChR antagonist). Regarding preventive effects, donepezil limited tactile hypersensitivity induced by paclitaxel, but not for other CIPN models. Donepezil did not modify the viability of cancer cells or the efficacy of anticancer drugs. Conclusions: donepezil had a broad analgesic effect on animal models of CIPN and this effect involved spinal m2AChRs. This work validates the repositioning of donepezil in the management of CIPN.
Il testo completo di questo articolo è disponibile in PDF.Keywords : Chemotherapy-induced peripheral neuropathy, Donepezil, Rat, Paclitaxel, Bortezomib, Vincristine, Muscarinic M2 acetylcholine receptors
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Vol 149
Articolo 112915- maggio 2022 Ritorno al numeroBenvenuto su EM|consulte, il riferimento dei professionisti della salute.
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