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Updated: May 21, 2026
06:48
An Orthotopic Murine Model of Human Prostate Cancer Metastasis
Published on: September 18, 2013
Leptin regulates proliferation and apoptosis in human prostate
Eduardo Leze1, Jorge Luiz Alves-Pereira, Sicilia Colli
1Urogenital Research Unit, State University of Rio de Janeiro, 20551-030 Rio de Janeiro, Brazil.
Thescientificworldjournal
|June 2, 2012
Summary
Leptin significantly increases prostate cell proliferation and apoptosis, while decreasing aromatase expression. This suggests leptin plays a key role in prostate growth regulation.
Area of Science:
- Endocrinology
- Molecular Biology
- Oncology
Background:
- Leptin, a hormone regulating energy balance, has been implicated in various cellular processes.
- Its specific role in human prostate tissue, particularly in benign prostatic hyperplasia (BPH), requires further elucidation.
Purpose of the Study:
- To investigate the effect of leptin on cellular proliferation in human prostate tissue.
- To examine leptin's influence on the expression of fibroblast growth factor 2, aromatase, and apoptotic genes (Bax, Bcl-2, Bcl-x) in prostate tissue.
Main Methods:
- Human hyperplastic prostate tissue samples were cultured in RPMI medium with or without leptin.
- Gene expression levels were quantified using real-time RT-PCR.
- Cellular proliferation was assessed via immunohistochemistry for proliferating cell nuclear antigen (PCNA).
Main Results:
- Leptin treatment significantly increased cellular proliferation (P < 0.0001).
- Leptin elevated Bax expression (P < 0.05) but reduced Bcl-2, Bcl-x, and aromatase expression (P < 0.05).
Conclusions:
- Leptin stimulates both cellular proliferation and apoptosis in prostate tissue.
- Leptin's role in prostate physiology involves modulating cell growth and decreasing aromatase gene expression.
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