PA Medical News about Urinary bladder

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Alterations in Caveolin Expression and Ultrastructure After Bladder Smooth Muscle Hypertrophy
The Journal of Urology, 11/02/09

Polyak E et al. – Caveolae serve as platforms for proteins and receptors that have a role in signal transduction. The decreased number of caveolae and caveolin protein expression in hypertrophied detrusor smooth muscle might contribute to alterations in signal transduction pathways that regulate the downstream effects of agonist induced contraction, including calcium sensitization, observed in obstructed bladder. In addition, the increased number of intermediate size filaments in the hypertrophied detrusor smooth muscle is likely to alter the cytoskeletal structure and affect the cellular transmission of passive and/or active force.