In vitro ototoxicity of aminoglycosides and platin derivatives. A semi- automatic assay for sensory hair cell damage in explanted rat organ of corti

B. Malgrange, P. P. Lefebvre, T. R. Van De Water, C. Bonnet, F. Monville, J. M. Rigo, H. Staecker, G. Moonen

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

The ototoxic damage that drugs such as neomycin, kanamycin, colistin, cisplatin, transplatin and carboplatin cause on outer and inner hair cells in postnatal day 3 rat cochlear explants was investigated. Phalloidin- fluorescein conjugate-stained stereocilia bundles of sensory hair cells were quantified by video image analysis as a measurement of ototoxic effect. The video image quantification system established dose-response curves for ototoxic drugs (e.g. calculation of an IC50) and allowed comparisons between several ototoxins from the same family. This methodology provided the means to assess the efficacy of otoprotectant agents in preventing ototoxicity. Poly-l-aspartate (10-5 M) and poly-l-glutamate (10-5 M) protected auditory hair cells from neomycin (10-3 M) toxicity while reduced glutathione (10-3 M) provided protection against cisplatin (10-4 M)- induced hair cell damage.

Original languageEnglish (US)
Pages (from-to)705-714
Number of pages10
JournalToxicology in Vitro
Volume12
Issue number6
DOIs
StatePublished - Dec 1 1998

Keywords

  • Aminoglycosides
  • Cisplatin
  • Cochlea
  • Otoprotection
  • Ototoxicity

ASJC Scopus subject areas

  • Toxicology

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    Malgrange, B., Lefebvre, P. P., Van De Water, T. R., Bonnet, C., Monville, F., Rigo, J. M., Staecker, H., & Moonen, G. (1998). In vitro ototoxicity of aminoglycosides and platin derivatives. A semi- automatic assay for sensory hair cell damage in explanted rat organ of corti. Toxicology in Vitro, 12(6), 705-714. https://doi.org/10.1016/S0887-2333(98)00048-4