The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.
Detection and characterization of the prostate‐specific membrane antigen (PSMA) in tissue extracts and body fluids
Abstract
The prostate‐specific membrane antigen (PSMA) glycoprotein is recognized by the monoclonal antibody (MAb) 7EII ‐C5.3 as a predominant 100 kDa and minor 180 kDa component in LNCaP cell line extracts and its expression has been shown by immunohistochemistry to be highly restricted to prostate epithelium. The aim of the present study was to utilize Western blot analysis to determine if PSMA could be detected in human tissue extracts and body fluids and if so, which molecular forms were present. PSMA was detected as 120 and 200 kDa bands in normal, benign and malignant prostate tissues and seminal plasma. Further analysis demonstrated that the larger molecular form of PSMA may be a dimer of the lower m.w. species. The PSMA glycoprotein was not detected in the majority of non‐ prostate tissue extracts examined except for a low yet significant amount in normal salivary gland, brain and small intestine, suggesting that PSMA may not be as prostate‐specific as originally thought. Since the prostate‐specific antigen (PSA) has been shown to be maximally shed into the serum in high‐grade and metastatic prostate carcinomas, it was surprising that PSMA could not be detected in serum by Western blot analysis even in patients with actively progressive metastatic disease. Second generation antibodies generated against different epitopes may be required to determine if PSMA is shed into serum. Our results support the hypothesis that PSMA is a novel prostate biomarker. © 1995 Wiley‐Liss, Inc.
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Cites
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Metadata
- Authors
- Trover, J. K., Beckett, M. L., & Wright, G. L.
- Venue
- International Journal of Cancer
- Publisher
- Wiley
- Published
- 1995-09-04
- Volume
- 62
- Issue
- 5
- Pages
- 552-558
- ISSN
- 0020-7136 (ISSN-L)
- 1097-0215
- OpenAlex
- W2075601928
- Cited by
- 373
- References
- 12
- FWCI
- 10.60
- Type
- journal article
- Language
- en
- Open access
- closed
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- Trover, J. K., Beckett, M. L., & Wright, G. L. (1995). Detection and characterization of the prostate‐specific membrane antigen (PSMA) in tissue extracts and body fluids. International Journal of Cancer. https://doi.org/10.1002/ijc.2910620511
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