Restoring autophagy flux by rolipram attenuates ototoxicity in Hearing loss

Dec 12, 2025European journal of pharmacology

Rolipram may reduce hearing loss by improving cell cleanup processes

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Abstract

Enhancing autophagy with rolipram significantly improved cell survival and preserved cochlear hair cells in the presence of kanamycin and furosemide.

  • Sensorineural hair cell loss is a major contributor to hearing loss.
  • Failure of autophagy flux is associated with impaired hearing in ototoxic conditions.
  • Rolipram treatment restored autophagy activity and improved cell viability in a dose-dependent manner.
  • The protective effect of rolipram was negated by chloroquine or Atg7 knockdown, indicating the necessity of intact autophagy flux for cellular protection.
  • In vivo, rolipram reduced hearing loss and maintained both cochlear hair cells and ribbon synapses of inner hair cells.

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