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Updated: May 10, 2026
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miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
Poly (ADP-ribose) polymerase 1 protein expression in normal and neoplastic prostatic tissue
M Salemi1, A Galia, F Fraggetta
1Section of Endocrinology, Andrology and Internal Medicine, Department of Medical and Pediatric Sciences, University of Catania, 95123 Catania, Italy. micezia@tiscali.it
European Journal of Histochemistry : EJH
|June 29, 2013
Summary
Prostate cancer involves genetic factors and apoptosis inhibition. Poly (ADP-ribose) polymerase 1 (PARP-1) protein is significantly overexpressed in prostate cancer tissues, suggesting its role in triggering programmed cell death.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Prostate cancer development is linked to genetic factors and apoptosis inhibition.
- Poly (ADP-ribose) polymerase 1 (PARP-1) is crucial for apoptosis, involving the translocation of apoptosis-inducing factor (AIF).
- Altered PARP-1 expression is observed in various cancers, but its role in prostate cancer requires further investigation.
Purpose of the Study:
- To evaluate the expression of PARP-1 protein in prostate cancer tissues compared to normal prostate tissues.
- To investigate the potential role of PARP-1 in the development and progression of prostate cancer.
Main Methods:
- Immunohistochemistry was used to assess PARP-1 protein expression.
- The study included 40 men with prostate cancer and 37 normal men.
Main Results:
- Positive nuclear PARP-1 staining was detected in all normal and cancerous prostate tissue samples.
- Cytoplasmic PARP-1 staining was not observed in any sample.
- PARP-1-positive cells were significantly higher in prostate carcinoma patients compared to controls (P<0.001).
Conclusions:
- PARP-1 is overexpressed in prostate cancer tissue, indicating increased activity.
- PARP-1 expression in prostate cancer may represent an attempt to induce apoptosis, similar to its role in other cancers.
