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Related Experiment Videos

[Cisplatin induced vestibular damage].

M Nakayama1

  • 1Department of Otolaryngology, Aichi Medical University.

Nihon Jibiinkoka Gakkai Kaiho
|January 1, 1992
PubMed
Summary
This summary is machine-generated.

Cisplatin (CDDP) causes significant damage to vestibular sensory cells and cilia in guinea pigs. This chemotherapy-induced ototoxicity primarily affects supporting cells and type I hair cells in the inner ear.

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Area of Science:

  • Ototoxicity
  • Inner ear pathology
  • Cellular biology

Context:

  • Cisplatin (CDDP) is a widely used chemotherapy agent.
  • Ototoxicity, including cochlear damage and hearing loss, is a known side effect of CDDP.
  • Vestibular disturbances are less frequently reported but significant.

Purpose:

  • To investigate the pathological effects of CDDP on the vestibular system in guinea pigs.
  • To compare the damage to different vestibular structures (ampullae, utricles, saccules) and cell types (type I and type II).
  • To elucidate the cellular mechanisms of CDDP-induced vestibular damage.

Summary:

  • Guinea pigs received 5 mg/Kg or 10 mg/Kg CDDP, and pathological changes were assessed.
  • SEM revealed extensive supporting cell exfoliation and cilia destruction in ampullae, with less damage in utricles and saccules.

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  • TEM showed greater damage to type I cells than type II cells, characterized by cytoplasmic accumulation and organelle destruction, particularly in mitochondria and endoplasmic reticulum.

    • Impact:

    • This study highlights CDDP's potential to induce vestibular dysfunction, not just cochlear damage.
    • Findings suggest CDDP targets cellular organelles involved in enzyme, nucleic acid, and protein metabolism.
    • Provides a cellular basis for understanding chemotherapy-induced vestibular side effects and informs potential therapeutic strategies.