Role of potassium ion channels in detrusor smooth muscle function and dysfunction
1Department of Pharmaceutical and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Coker Life Sciences Building, Room 609D, 715 Sumter Street, Columbia, SC 29208, USA. petkov@cop.sc.edu
Nature Reviews. Urology
|December 14, 2011
Summary
Detrusor smooth muscle (DSM) K(+) channels regulate bladder function. Understanding these channels offers new therapeutic targets for bladder dysfunction, like overactive bladder.
Area of Science:
- Physiology
- Pharmacology
- Urology
Background:
- The detrusor smooth muscle (DSM) is crucial for urine storage and voiding.
- K(+) channels are vital for regulating DSM excitability and contractility.
- Dysfunctional K(+) channels are implicated in bladder disorders.
Purpose of the Study:
- To review the role of K(+) channels in detrusor smooth muscle function.
- To highlight K(+) channels as therapeutic targets for bladder dysfunction.
Main Methods:
- Literature review of K(+) channel function in DSM.
- Analysis of K(+) channel roles in health and disease states.
- Focus on current advancements in K(+) channel research.
Main Results:
- Multiple K(+) channel families (K(V), K(Ca), K(ir)/K(ATP), K(2P)) are expressed and functional in DSM.
- These channels control membrane potential and action potentials, influencing contractility.
- Defects in K(+) channels can lead to bladder dysfunction, including overactive bladder.
Conclusions:
- K(+) channels are key regulators of urinary bladder function.
- Targeting DSM K(+) channels presents a promising avenue for novel therapies.
- Further research into K(+) channel modulation could improve treatments for bladder dysfunction.
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