Investigation of the effect of the c-kit inhibitor Glivec on isolated guinea-pig detrusor preparations

Yasue Kubota, Shunichi Kajioka, Suzanne M. Biers, Etsuko Yokota, Kenjiro Kohri, Alison F. Brading

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


In order to assess the possible role of the c-kit positive cells in the bladder, the effects of c-kit tyrosine kinase inhibitor, Glivec®, on spontaneous excitation and ion channel activity in detrusor smooth muscles of the guinea-pig bladder were investigated using intracellular microelectrodes, isometric muscle tension recordings and patch clamp techniques. Glivec (10 μM) converted action potential bursts into continuous firing without affecting their shape but at 50 μM abolished spontaneous action potentials. It had little effect on inward and outward currents at <10 μM, but inhibited them at >50 μM. Glivec decreased the amplitude of spontaneous contractions dose dependently. These results suggest that c-kit positive cells may play a role in modulating spontaneous electrical and mechanical activities. Drugs inhibiting the c-kit receptor may provide a new approach for treating the overactive bladder.

Original languageEnglish
Pages (from-to)64-73
Number of pages10
JournalAutonomic Neuroscience: Basic and Clinical
Issue number1-2
Publication statusPublished - Sept 30 2004

All Science Journal Classification (ASJC) codes

  • Endocrine and Autonomic Systems
  • Clinical Neurology
  • Cellular and Molecular Neuroscience


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