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Revisiting PPARγ as a target for the treatment of metabolic disorders
Sun-Sil Choi1, Jiyoung Park1, Jang Hyun Choi1
1Department of Biological Science, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Korea.
Abstract:
As the prevalence of obesity has increased explosively over the last several decades, associated metabolic disorders, including type 2 diabetes, dyslipidemia, hypertension, and cardiovascular diseases, have been also increased. Thus, new strategies for preventing and treating them are needed. The nuclear peroxisome proliferator-activated receptors (PPARs) are involved fundamentally in regulating energy homeostasis; thus, they have been considered attractive drug targets for addressing metabolic disorders. Among the PPARs, PPARγ is a master regulator of gene expression for metabolism, inflammation, and other pathways in many cell types, especially adipocytes. It is a physiological receptor of the potent anti-diabetic drugs of the thiazolidinediones (TZDs) class, including rosiglitazone (Avandia). However, TZDs have undesirable and severe side effects, such as weight gain, fluid retention, and cardiovascular dysfunction. Recently, many reports have suggested that PPARγ could be modulated by post-translational modifications (PTMs), and modulation of PTM has been considered as novel approaches for treating metabolic disorders with fewer side effects than the TZDs. In this review, we discuss how PTM of PPARγ may be regulated and issues to be considered in making novel anti-diabetic drugs that can modulate the PTM of PPARγ.
Insights
New strategies are needed to combat rising obesity and metabolic disorders. Targeting post-translational modifications (PTMs) of peroxisome proliferator-activated receptor gamma (PPARγ) offers a promising approach for developing safer anti-diabetic drugs.
Area of Science:
- Metabolic disorders
- Endocrinology
- Pharmacology
Background:
- Rising obesity rates correlate with increased metabolic disorders like type 2 diabetes and cardiovascular diseases.
- Peroxisome proliferator-activated receptors (PPARs), particularly PPARγ, are key regulators of energy homeostasis and attractive drug targets.
- Current PPARγ agonists, thiazolidinediones (TZDs), cause severe side effects, necessitating alternative therapeutic strategies.
Purpose of the Study:
- To review the role of post-translational modifications (PTMs) in regulating PPARγ activity.
- To explore PTM modulation as a novel therapeutic strategy for metabolic disorders.
- To discuss considerations for developing new anti-diabetic drugs targeting PPARγ PTMs.
Main Methods:
- Literature review of studies on PPARγ, PTMs, and metabolic disorders.
- Analysis of existing data on TZD side effects and alternative therapeutic approaches.
- Discussion of potential drug development pathways targeting PPARγ PTMs.
Main Results:
- PPARγ activity can be modulated through various PTMs.
- Targeting PPARγ PTMs presents a potential avenue for developing anti-diabetic treatments with improved safety profiles.
- Understanding PTM regulation is crucial for designing effective and safe PPARγ-modulating drugs.
Conclusions:
- PPARγ PTMs offer a promising strategy to overcome the limitations of current TZD therapies for metabolic disorders.
- Further research into PPARγ PTM regulation is essential for the development of novel anti-diabetic drugs.
- Modulating PPARγ PTMs could lead to safer and more effective treatments for obesity-related metabolic diseases.
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