p63 + P504S (PIN)

P504S is an enzyme in the ß-oxidation of branched-chain fatty acids. Expression of P504S protein is found in prostatic adenocarcinoma but not in benign prostatic tissue. p63, a homolog of the tumor suppressor p53, encodes for different isotypes able to either transactivate p53 reporter genes (TAp63) or act as p53-dominant-negatives. Expression of p63 is detected in prostate basal epithelial nuclei in normal prostate; however, is negative in malignant tumors of the prostate gland. p63 + P504S antibody may be an extremely useful aid in diagnosing prostatic intraepithelial neoplasia (PIN), especially in difficult and limited tissues cases.

1. Yang A, et. al. p63, a p53 Homolog at 3q27–29, Encodes Multiple Products with Transactivating, Death-Inducing, and Dominant-Negative Activities. Mol Cell. 1998;2:305-16.
2. Signoretti S, et. al. p63 Is a Prostate Basal Cell Marker and Is Required for Prostate Development. Am J Pathol. 2000;157:1769-75.
3. Ferdinandusse S, et. al. Subcellular localization and physiological role of α- methylacyl-CoA racemase. J Lipid Res. 2000; 41:1890-6.
4. Xu J, et. al. Identification of Differentially Expressed Genes in Human Prostate Cancer Using Subtraction and Microarray. Cancer Res. 2000; 60:1677-82.
5. Rubin MA, et. al. α-Methylacyl Coenzyme A Racemase as a Tissue Biomarker for Prostate Cancer. JAMA. 2002; 287:1662-70.
6. Luo J, et. al. Alpha-methylacyl-CoA racemase: a new molecular marker for prostate cancer. Cancer Res. 2002; 62:2220-6.
7. Zhou M, et. al. Alpha-Methylacyl-CoA Racemase A Novel Tumor Marker Overexpressed in Several Human Cancers and Their Precursor Lesions. Am J Surg Pathol. 2002; 26:926-31.
8. Wu CL, et. al. Analysis of α-Methylacyl-CoA Racemase (P504S) Expression in High-Grade Prostatic Intraepithelial Neoplasia. Hum Pathol. 2004; 35:1008-13.
9. Center for Disease Control Manual. Guide: Safety Management, NO. CDC-22, Atlanta, GA. April 30, 1976 “Decontamination of Laboratory Sink Drains to Remove Azide Salts.”
10. Clinical and Laboratory Standards Institute (CLSI). Protection of Laboratory Workers from Occupationally Acquired Infections; Approved guideline-Third Edition CLSI document M29-A3 Wayne, PA 2005.