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Peroxisome proliferator activated receptor-gamma ligands as potent antineoplastic agents
S Theocharisa1, A Margeli, G Kouraklis
1Department of Forensic Medicine and Toxicology, Medical School, University of Athens, Greece. theocharis@ath.forthnet.gr
Abstract:
The Peroxisome Proliferator Activated Receptors (PPARs) are initially described as molecular targets for compounds inducing peroxisome proliferation. Among the three PPAR subtypes (alpha, beta, gamma), PPAR-gamma acting as a ligand-activated transcription factor, proved to be an important regulator of adipogenic differentiation and glucose homeostasis. Recent data support evidence for participation of PPAR-gamma, upon ligands activation, in the biological mechanisms underlying the carcinogenic evolution. Specific PPAR-gamma ligands affect cancer cells proliferation and differentiation acting as cell cycle modulators, suggesting their use as an important tool for future therapeutic approach in cancer. In this review, the latest knowledge on PPAR-gamma activation and molecular mechanisms of PPAR-gamma ligands mediated anti-tumoral activity are presented. In vitro and in vivo studies concerning the use of PPAR-gamma ligands in different cancer types are also included.
Insights
Peroxisome proliferator-activated receptor gamma (PPAR-gamma) ligands show potential in cancer therapy by modulating cell proliferation and differentiation. This review explores their anti-tumoral mechanisms and therapeutic applications in various cancers.
Area of Science:
- Molecular biology
- Oncology
- Endocrinology
Background:
- Peroxisome proliferator-activated receptors (PPARs) are nuclear receptors regulating various cellular processes.
- PPAR-gamma is a key regulator of adipogenesis and glucose homeostasis.
- Emerging evidence implicates PPAR-gamma in cancer development and progression.
Purpose of the Study:
- To review the latest knowledge on PPAR-gamma activation.
- To elucidate the molecular mechanisms of PPAR-gamma ligand-mediated anti-tumoral activity.
- To summarize in vitro and in vivo studies on PPAR-gamma ligands in cancer therapy.
Main Methods:
- Literature review of recent scientific publications.
- Analysis of studies on PPAR-gamma activation and its downstream effects.
- Compilation of data from in vitro and in vivo experiments.
Main Results:
- PPAR-gamma ligands modulate cancer cell proliferation and differentiation.
- PPAR-gamma activation influences cell cycle regulation in cancer cells.
- Studies demonstrate anti-tumoral effects of PPAR-gamma ligands across various cancer types.
Conclusions:
- PPAR-gamma ligands represent a promising therapeutic strategy for cancer treatment.
- Understanding PPAR-gamma's role in carcinogenesis can lead to novel anti-cancer drugs.
- Further research into PPAR-gamma pathways is crucial for optimizing cancer therapies.