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Elevated expression of cancer-associated proliferating cell nuclear antigen in high-grade prostatic intraepithelial neoplasia and prostate cancer.
- Source :
-
The Prostate [Prostate] 2011 May 15; Vol. 71 (7), pp. 748-54. Date of Electronic Publication: 2010 Oct 28. - Publication Year :
- 2011
-
Abstract
- Background: Proliferating cell nuclear antigen (PCNA) plays an important role in DNA replication and repair. The expression and potential utility of this marker in prostatic neoplasia is uncertain. With the development of this new caPCNA selective antibody, we explored the potential utility of this marker in prostate cancer.<br />Methods: Using a traditional primary Fab2' rabbit anti-caPCNA antibody-HRP conjugated secondary anti-Fab2' antibody format, the expression of the caPCNA was analyzed in prostate tissue from 89 radical prostatectomy specimens. The caPCNA expression was correlated with clinicopathologic characteristics.<br />Results: The fraction of cells staining positively with caPCNA antibody in prostatic adenocarcinoma (mean, 23%) was significantly higher than that in benign prostatic epithelium (mean, 2%; P < 0.001) or high-grade prostatic intraepithelial neoplasia (PIN) (mean, 6%; P < 0.05). Moreover, the intensity of caPCNA expression in prostatic adenocarcinoma (mean, 2.9) was significantly higher than that in benign prostatic tissue (mean, 0.7; P < 0.001) or high-grade PIN (mean, 2.0; P < 0.001). Benign prostatic epithelium showed only minimal or negative reactivity. There was significant correlation between the percentage of caPCNA expression and primary Gleason grade (P = 0.01), and with Gleason score (P = 0.02). Adenocarcinomas with positive vascular invasion had a significantly higher percentage of cells staining with caPCNA antibody (P < 0.0001) and a higher intensity of caPCNA expression (P = 0.04).<br />Conclusions: Our data indicate that increased expression of the cancer-associated isoform of PCNA is common in prostatic adenocarcinoma and its precursor and may be a useful biomarker.<br /> (Copyright © 2010 Wiley-Liss, Inc.)
- Subjects :
- Adenocarcinoma metabolism
Adenocarcinoma surgery
Adult
Aged
Aged, 80 and over
Antigens, Neoplasm immunology
Biomarkers, Tumor immunology
Biomarkers, Tumor metabolism
Epithelial Cells metabolism
Epithelial Cells pathology
Fluorescent Antibody Technique, Indirect
Humans
Male
Middle Aged
Neoplasm Invasiveness
Proliferating Cell Nuclear Antigen immunology
Prostatectomy
Prostatic Intraepithelial Neoplasia metabolism
Prostatic Intraepithelial Neoplasia surgery
Prostatic Neoplasms metabolism
Prostatic Neoplasms surgery
Protein Isoforms
Adenocarcinoma pathology
Antigens, Neoplasm metabolism
Proliferating Cell Nuclear Antigen metabolism
Prostatic Intraepithelial Neoplasia pathology
Prostatic Neoplasms pathology
Subjects
Details
- Language :
- English
- ISSN :
- 1097-0045
- Volume :
- 71
- Issue :
- 7
- Database :
- MEDLINE
- Journal :
- The Prostate
- Publication Type :
- Academic Journal
- Accession number :
- 21031434
- Full Text :
- https://doi.org/10.1002/pros.21291