General descriptionProstate-Specific Antigen (PSA) is a 33 kDa protein primarily produced by the prostatic epithelium and the epithelial lining of the periurethral glands
. PSA is strongly expressed in both normal and neoplastic prostatic tissue. Although PSA can be considered prostate-specific, PSA and/or PSA gene expression has been detected at low levels in some extra-prostatic tissues such as normal breast tissue, breast tumors, endometrium, adrenal neoplasms and renal cell carcinomas. Anti-PSA is most useful in determining the prostatic origin of carcinomas in non-prostate tissues (metastatic disease) using IHC techniques. This product is best used in conjunction with a panel of antibodies as, up to 27% of prostate carcinoma cases (predominantly poorly differentiated carcinomas) can be negative for this marker.
Physical form
Solution in Tris Buffer, pH 7.3-7.7, with 1% BSA and <0.1% Sodium Azide
Preparation Note
Download the IFU specific to your product lot and formatNote: This requires a keycode which can be found on your packaging or product label.
Analysis Note
Other Notes
For Technical Service please contact: 800-665-7284 or email: [email protected]
PSA Positive Control Slides, Product No. 324S, are available for immunohistochemistry (formalin-fixed, paraffin-embedded sections).
Legal Information
Cell Marque is a registered trademark of Merck KGaA, Darmstadt, Germany 
