How does the acid phosphatase test work?
The enzyme acid phosphatase hydrolyses the substrate to the corresponding phenol and phosphate ion. The phenol formed is simultaneously coupled with a suitable diazonium salt as a chromogen to give a characteristic colored dye stuff, which is a positive test for the presence of a seminal stain.
What is acid phosphatase assay?
We describe an acid phosphatase assay for determination of cell growth based on quantification of cytosolic acid phosphatase activity. The assay is based on the hydrolysis of the p-nitrophenyl phosphate by intracellular acid phosphatases in viable cells to produce p-nitrophenol.
Why is acid phosphatase a presumptive test?
AP originates in the prostate gland. Although present in other body fluids, it occurs in seminal fluid at concentrations 20 to 400 times higher than that of other body fluids. Since AP is not exclusive to human semen, it can only be used as a presumptive test for the presence of semen.
What is prostatic acid phosphatase?
Prostatic acid phosphatase (PAP), also prostatic specific acid phosphatase (PSAP), is enzyme produced by prostate tissue
What is the role of immunohistochemistry in prostate cancer diagnosis?
Immunohistochemistry (IHC) can play an important role in diagnostic surgical pathology of the prostate. Basal cell markers, such as the 34betaE12 antibody and antibodies directed against cytokeratin 5 and 6 or p63, are very useful for demonstration of basal cells as their presence argues against a d …
Is tyrosine phosphorylation regulated by prostatic acid phosphatase?
Meng T.C., Lin M.F. Tyrosine phosphorylation of c-ErbB-2 is regulated by the cellular form of prostatic acid phosphatase in human prostate cancer cells. J. Biol. Chem. 1998;273:22096–22104. [PubMed] [Google Scholar] 14.
How significant is prostate cancer due to immunohistochemical coagulation?
Significant prostate cancer was mainly found in the cohort of patients with initial unilateral prostate cancer which changed to a bilateral cancer due to IHC. These findings are also in an agreement with current literature.