{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T11:34:10Z","timestamp":1791977650313,"version":"4.4.0"},"reference-count":21,"publisher":"American Physiological Society","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Neurophysiology"],"published-print":{"date-parts":[[2001,5,1]]},"abstract":"<jats:p>Oxaliplatin, a new widely used anticancer drug, displays frequent, sometimes severe, acute sensory neurotoxicity accompanied by neuromuscular signs that look like the symptoms observed in tetany and myotonia. The whole cell patch-clamp technique was employed to investigate the oxaliplatin effects on the electrophysiological properties of short-term cultured dorsal unpaired median (DUM) neurons isolated from the CNS of the cockroach Periplaneta americana. Within the clinical concentration range, oxaliplatin (40\u2013500 \u03bcM), applied intracellularly, decreased the amplitude of the voltage-gated sodium current resulting in a reduction of half the amplitude of the action potential. For comparison, two other platinum derivatives, cisplatin and carboplatin, were found to be ineffective at reducing the sodium current amplitude. In addition, we compared the oxaliplatin action to those of its metabolites dichloro-diaminocyclohexane platinum (dach-Cl<jats:sub>2<\/jats:sub>-platin) and oxalate. Oxalate (500 \u03bcM) was found to be effective, like oxaliplatin, at reducing the inward sodium current amplitude, whereas dach-Cl<jats:sub>2<\/jats:sub>-platin (500 \u03bcM) failed to change the current amplitude. Interestingly, the effect of oxalate or oxaliplatin could be mimicked by using intracellularly applied 10 mM bis-( o-aminophenoxy)- N,N,N\u2032,N\u2032-tetraacetic acid (BAPTA), known as chelator of calcium ions. We concluded that oxaliplatin was capable of altering the voltage-gated sodium channels through a pathway involving calcium ions probably immobilized by its metabolite oxalate. The medical interest of preventing acute neurotoxic side effects of oxaliplatin by infusing Ca<jats:sup>2+<\/jats:sup>and Mg<jats:sup>2+<\/jats:sup>is discussed.<\/jats:p>","DOI":"10.1152\/jn.2001.85.5.2293","type":"journal-article","created":{"date-parts":[[2017,12,21]],"date-time":"2017-12-21T11:01:15Z","timestamp":1513854075000},"page":"2293-2297","source":"Crossref","is-referenced-by-count":287,"title":["A Possible Explanation for a Neurotoxic Effect of the Anticancer Agent Oxaliplatin on Neuronal Voltage-Gated Sodium Channels"],"prefix":"10.1152","volume":"85","author":[{"given":"Fran\u00e7oise","family":"Grolleau","sequence":"first","affiliation":[{"name":"Laboratoire de Neurophysiologie Unit\u00e9Propre de Recherche de l'Enseignement Sup\u00e9rieur Equipe d'Accueil (UPRES EA) 2647, Universit\u00e9 d'Angers, Unit\u00e9 de Formation et de Recherche (UFR) Sciences, F-49045 Angers Cedex; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurence","family":"Gamelin","sequence":"additional","affiliation":[{"name":"Laboratoire de Biologie Mol\u00e9culaire, Immunologie et Th\u00e9rapeutique des Cancers (BMITC), Centre Paul Papin, Centre Hospitalier Universitaire d'Angers, F-49033 Angers Cedex, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mich\u00e8le","family":"Boisdron-Celle","sequence":"additional","affiliation":[{"name":"Laboratoire de Biologie Mol\u00e9culaire, Immunologie et Th\u00e9rapeutique des Cancers (BMITC), Centre Paul Papin, Centre Hospitalier Universitaire d'Angers, F-49033 Angers Cedex, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bruno","family":"Lapied","sequence":"additional","affiliation":[{"name":"Laboratoire de Neurophysiologie Unit\u00e9Propre de Recherche de l'Enseignement Sup\u00e9rieur Equipe d'Accueil (UPRES EA) 2647, Universit\u00e9 d'Angers, Unit\u00e9 de Formation et de Recherche (UFR) Sciences, F-49045 Angers Cedex; 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