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Published on: February 20, 2019
Identification of the RORα Transcriptional Network Contributes to the Search for Therapeutic Targets in
Hiroshi Matsuoka1, Akihiro Michihara1
1Laboratory of Genomic Function and Pathophysiology, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University.
Abstract:
The retinoic acid receptor-related orphan receptor α (RORα) is involved in the regulation of several physiological processes, including development, metabolism, and circadian rhythm. RORα-deficient mice display profound atherosclerosis, in which hypoalphalipoproteinemia is reportedly associated with decreased plasma levels of high-density lipoprotein, increased levels of inflammatory cytokines, and ischemia/reperfusion-induced damage. The recent characterization of endogenous ligands (including cholesterol, oxysterols, provitamin D3, and their derivatives), mediators, and initiation complexes associated with the transcriptional regulation of these orphan nuclear receptors has facilitated the development of synthetic ligands. These findings have also highlighted the potential of application of RORα as a therapeutic target for several diseases, including diabetes, dyslipidemia, and atherosclerosis. In this review, the current literature related to the structure and function of RORα, its genetic inter-individual differences, and its potential as a therapeutic target in atherosclerosis is discussed.
Insights
Retinoic acid receptor-related orphan receptor α (RORα) plays a key role in metabolism and development. Targeting RORα offers potential therapeutic strategies for diseases like atherosclerosis and diabetes.
Area of Science:
- Molecular biology
- Endocrinology
- Genetics
Background:
- Retinoic acid receptor-related orphan receptor α (RORα) regulates critical physiological processes like metabolism and circadian rhythms.
- RORα deficiency in mice leads to severe atherosclerosis, characterized by low high-density lipoprotein, elevated inflammatory cytokines, and tissue damage.
Purpose of the Study:
- To review the current literature on RORα structure and function.
- To discuss RORα's genetic variations and its therapeutic potential in atherosclerosis.
Main Methods:
- Literature review of studies on RORα.
- Analysis of RORα's role in physiological processes and disease models.
- Examination of endogenous and synthetic RORα ligands.
Main Results:
- RORα influences development, metabolism, and circadian rhythm.
- RORα deficiency is linked to atherosclerosis, hypoalphalipoproteinemia, and inflammation.
- Characterization of RORα ligands enables synthetic ligand development.
Conclusions:
- RORα is a crucial regulator of lipid metabolism and inflammation.
- Targeting RORα presents a promising therapeutic avenue for atherosclerosis, diabetes, and dyslipidemia.
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