Clone: 13H4 / 4A4
Background: The combination of AMACR and p63 may be extremely useful for diagnosing PIN and small focus adenocarcinoma, especially in difficult cases and cases with limited tissues. This antibody cocktail may eliminate the need for 34bE12. AMACR stains cytoplasm in prostate adenocarcinoma and PIN while p63 stains basal cell nuclei in PIN and benign prostate glands. P504S (AMACR, Alpha-methylacyl-CoA racemase) is an essential enzyme in the b-oxidation of branched-chain fatty acids. High expression of AMACR protein is found in prostate adenocarcinoma but not in benign prostate tissue by immunohistochemical staining in paraffin-embedded tissue. The expression of AMACR is also detected in prostate premalignant lesions, such as prostate intraepithelial neoplasia (PIN). The p63 protein, a homologue of the tumor-suppressor p53, is highly expressed in the basal or progenitor layer of many epithelial tissues. p63 is detected in prostate basal cells in normal prostate glands and PIN. However, it is negative in prostate adenocarcinoma. Thus p63 is useful as a differential marker for benign prostate glands and adenocarcinoma (negative marker). Human AMACR (P504S) protein, Alpha-Methylacyl CoA Racemase and human p63 nuclear protein.
Positive Control: Prostatic intraepithelial neoplasia
Immunogen: 1. Human recombinant AMACR (P504S) protein, whole sequence (for rabbit monoclonal antibody 13H4); 2. Recombinant human p63 protein aa 1-205 (for mouse monoclonal antibody 4A4)
Purification Method: Affinity purified antibodies in PBS, BSA, sodium azide (0.09%)*. Use antibody dilution buffer (e.g. Art. No. PU002) containing sufficient protein and preservative.
References: 1. Jiang Z, Woda BA, Rock KL et al. (2001) P504S: a new molecular marker for the detection of prostate carcinoma. Am J Surg Pathol 25:1397-1404. 2. Weinstein MH, Signoretti S, Loda M (2002) Diagnostic utility of immunohistochemical staining for p63, a sensitive marker of prostatic basal cells. Mod Pathol. Dec;15(12):1302-8. 3. Luo J, Shan Zha, Wesley R, et al. (2002) Alpha methylacyl-CoA recemase, a new molecular marker for prostate cancer. Cancer Res 62:2220-2226.
Caution: *These antibodies are intended for in vitro research use only. They must not be used for clinical diagnostics and not for in vivo experiments in humans or animals. ** The preservative sodium azide is known to be poisonous and potentially hazardous to health. It should be handled only by trained staff. Despite of the product's low azide concentration it must be handled with care. Dispose according to regional rules!
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