Early Detection Research Network

Prostate

The prostate cancer antigen 3 (PCA3) gene is a highly specific biomarker upregulated in prostate cancer. The PCA3 gene (prostate cancer antigen 3) is a non-coding gene that is over-expressed in prostate cancer. PCA3 in conjunction with other clinical tools has been shown to be as effective as the PSA (prostate specific antigen) assay in predicting the presence of prostate cancer. The FDA recently approved the first molecular test that uses PCA3 to help determine the need for repeat prostate biopsies in men who have had a previous negative biopsy.
http://edrn.jpl.nasa.gov/bmdb/biomarkers/organs/63/81
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The FDA has approved an assay for prostate cancer that uses the ratio of PCA3 RNA to PSA RNA in urine. The assay is used to help physicians determine the need for repeat prostate biopsies in men 50 years of age or older who have had a previous negative biopsy. When used in conjunction with other clinical information, the use of this test can reduce the need for unnecessary prostate biopsies.
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