A cochlear cell line as an in vitro system for drug ototoxicity screening

Gilda M. Kalinec, Paul Webster, David J. Lim, Federico Kalinec

Research output: Contribution to journalArticle

196 Scopus citations

Abstract

Aminoglycoside antibiotics, loop diuretics, axntineoplastic agents and other commonly used pharmacological drugs are ototoxic. Understanding of the cellular and molecular mechanisms underlying drug ototoxicity, however, has been hampered by the limited availability of inner ear tissues and drug side effects on laboratory animals. Immortalized cell lines derived from the auditory sensory organ, sensitive to ototoxic drugs and growing in environments that can be systematically manipulated, would facilitate the research directed at elucidating these mechanisms. Such immortalized cell lines could also be used to discover novel therapeutic agents for preventing drug-induced sensorineural hearing loss. Here, we report a conditionally immortalized organ of Corti-derived epithelial cell line, which shows evidence of activation of apoptosis when exposed to known ototoxic drugs. This cell line may be an excellent in vitro system to investigate the cellular and molecular mechanisms involved in ototoxicity and for screening of the potential ototoxicity or otoprotective properties of new pharmacological drugs.

Original languageEnglish (US)
Pages (from-to)177-189
Number of pages13
JournalAudiology and Neuro-Otology
Volume8
Issue number4
DOIs
StatePublished - 2003

Keywords

  • Aminoglycoside antibiotics
  • Cell line
  • Cochlea
  • Drug screening
  • Immortomouse
  • Ototoxic drugs

ASJC Scopus subject areas

  • Physiology
  • Otorhinolaryngology
  • Sensory Systems
  • Speech and Hearing

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