The GPS test, or Genomic Prostate Score test, is a specialized test performed on prostate tumor tissue to measure the activity of specific cancer-related genes.
Understanding the Genomic Prostate Score (GPS) Test
The Genomic Prostate Score (GPS) test is utilized to analyze the characteristics of prostate cancer at a genomic level. The process begins with a small tissue sample.
- Sample Source: The test is performed on a small tissue sample that has already been taken from your most recent biopsy.
- Laboratory Analysis: Once this biopsy sample arrives at a specialized lab, such as the Exact Sciences lab mentioned in the reference, it undergoes analysis.
- What is Measured: The core function of the GPS test is that it measures the activity of the group of cancer-related genes that are in your tumor tissue.
By assessing the activity levels of these particular genes, the GPS test provides a Genomic Prostate Score. This score can offer insights into the tumor's biology and potentially help in understanding its aggressiveness or other relevant features.
