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Updated: Jun 12, 2026
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miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
BAG3 protein delocalisation in prostate carcinoma.
Stefania Staibano1, Massimo Mascolo, Maria Di Benedetto
1Department of Biomorphological and Functional Sciences, Pathology Section, University Federico II of Naples, School of Medicine, Via S. Pansini, 5, 80131, Naples, Italy. staibano@unina.it
Summary
The survival co-chaperone protein BAG3 may serve as a novel prognostic marker for prostate cancer. Its expression levels and localization correlate with tumor differentiation and metastatic potential, aiding in predicting cancer behavior.
Area of Science:
- Oncology
- Molecular Biology
- Pathology
Background:
- Prostate cancer prognosis remains challenging despite early diagnosis advancements.
- A subset of prostate cancers exhibit aggressive behavior and lethality, unpredictable by current markers.
Purpose of the Study:
- To investigate the survival co-chaperone protein BAG3 as a potential prognostic marker in prostate cancer.
- To evaluate the correlation between BAG3 expression and clinicopathological features and patient outcomes.
Main Methods:
- Immunohistochemistry was used to detect BAG3 expression in 55 prostate carcinoma specimens and 15 non-neoplastic prostate tissues.
- BAG3 expression patterns were compared with clinicopathological data and patient outcomes.
- Statistical analysis was performed to evaluate the significance of findings.
Main Results:
- BAG3 was expressed in all analyzed prostate tissues.
- Non-neoplastic tissue showed cytoplasmic BAG3 with apical reinforcement, linked to cell adhesion.
- Prostate carcinomas displayed a progressive decrease in BAG3 expression with decreasing differentiation and loss of apical signal in metastatic cases.
Conclusions:
- Intra-cytoplasmic delocalization of BAG3 is a specific indicator differentiating cancerous from non-neoplastic prostate tissue.
- BAG3 expression patterns show potential as a new marker for predicting prostate cancer invasiveness and behavior.
