, Volume 5, Issue 3, pp 273-275
Date: 26 Mar 2009

Prostatic acid phosphatase, a neglected ectonucleotidase

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Two recent papers reveal that the soluble and secreted prostatic acid phosphatase, an enzyme that has long served as a diagnostic marker for prostate cancer, has a membrane-bound splice variant. This enzyme exhibits ecto-5′-nucleotidase activity, is widely distributed, and implicated in the formation of chronic pain. While prostatic acid phosphatase hydrolyzes phosphomonoesters other than 5′-nucleoside monophosphates these novel data suggest that, in addition to ecto-5′-nucleotidase and the alkaline phosphatases, prostatic acid phosphatase must be taken into account in future studies on extracellular adenosine production.