Prostate-specific antigen (PSA), also known as gamma-seminoprotein or kallikrein-3 (KLK3), is a glycoprotein enzyme and a member of the kallikrein-related peptidase family and is secreted by the epithelial cells of the prostate gland. PSA is present in small quantities in the serum of men with healthy prostates, but is often elevated in the presence of prostate cancer or other prostate disorders. Most PSA in the blood is bound to serum proteins. A small amount is not protein bound and is called 'free PSA'. Measuring the ratio of free to total PSA appears to be particularly promising for eliminating unnecessary biopsies in men with PSA levels between 4 and 10 ng/mL. BioVision's QuickDetect? free-PSA ELISA kit is a sandwich ELISA assay
Size
100 assays
Concentration
n/a
Applications
This ELISA kit is used for quantitative measurement of free-PSA in human serum, plasma, cell culture supernatant and other biological fluids.