Abstract:
:Prostate specific antigen (PSA) is a serine protease that is exclusively produced in the prostate, and its detection is the only laboratory test available for screening men for prostate cancer (PC). The interpretation of the assay is difficult since it is specific for prostate tissue and cellular growth, but not for PC. Pharmacologic therapy for hyperlipidemia, such as statins, may influence prostate cellular growth and subsequently PSA levels in patients. Dysregulated cellular growth in the prostate is mediated by inhibiting the rate-limiting pathway step in cholesterol synthesis, thereby decreasing isoprenylate intermediates, decreasing cholesterol rich cellular membrane domains, and down-regulating androgen and estrogen receptors. Statins, with variable efficacy, have been previously shown to inhibit cellular inflammation, angiogenesis, proliferation, migration/adhesion, and invasion, while promoting apoptosis in prostate cells by inhibiting the conversion of HMG-CoA to mevalonate. An individual statin's molecular structure, need for enzymatic conversion, bioavailability, and peripheral tissue concentration may partially account for differing properties. By inhibiting prostatic cellular growth and promoting apoptosis, statins may subsequently decrease PSA levels, an effect recently observed in cohorts. There is scientific and clinical evidence supporting the observations that statins are associated with an overall reduction in serum PSA in men, when used for greater than 6 months, and especially when used for greater than 2 years.
journal_name
IUBMB Lifejournal_title
IUBMB lifeauthors
Mener DJdoi
10.1002/iub.355subject
Has Abstractpub_date
2010-08-01 00:00:00pages
584-90issue
8eissn
1521-6543issn
1521-6551journal_volume
62pub_type
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