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Retinoic Acid Signaling in Fatty Liver Disease
Fathima N Cassim Bawa1, Yanqiao Zhang1
1Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA 44272.
Abstract:
Retinoic acid (RA) is a metabolite of vitamin A and is essential for development and growth as well as cellular metabolism. Through genomic and nongenomic actions, RA regulates a variety of physiological functions. Dysregulation of RA signaling is associated with many diseases. Targeting RA signaling has been proven valuable to human health. All-trans retinoic acid (AtRA) and anthracycline-based chemotherapy are the standard treatment of acute promyelocytic leukemia (APL). Both human and animal studies have shown a significant relationship between RA signaling and the development and progression of nonalcoholic fatty liver disease (NAFLD). In this review article, we will first summarize vitamin A metabolism and then focus on the role of RA signaling in NAFLD. AtRA inhibits the development and progression of NAFLD via regulating lipid metabolism, inflammation, thermogenesis, etc.
Insights
Retinoic acid (RA), a vitamin A metabolite, plays a key role in health. This review explores how RA signaling impacts nonalcoholic fatty liver disease (NAFLD) development and progression.
Area of Science:
- Biochemistry
- Cellular Biology
- Metabolic Diseases
Background:
- Retinoic acid (RA) is a crucial vitamin A metabolite regulating physiological functions through genomic and nongenomic pathways.
- Dysregulation of RA signaling is implicated in various diseases, making it a therapeutic target.
- Nonalcoholic fatty liver disease (NAFLD) development and progression are significantly linked to RA signaling.
Purpose of the Study:
- To review vitamin A metabolism.
- To elucidate the role of retinoic acid signaling in NAFLD.
- To highlight how all-trans retinoic acid (AtRA) influences NAFLD pathogenesis.
Main Methods:
- Literature review of vitamin A metabolism.
- Analysis of studies on RA signaling in NAFLD.
- Synthesis of evidence on AtRA's effects on NAFLD.
Main Results:
- RA is essential for development, growth, and cellular metabolism.
- RA signaling impacts lipid metabolism, inflammation, and thermogenesis.
- All-trans retinoic acid (AtRA) demonstrates inhibitory effects on NAFLD development and progression.
Conclusions:
- Retinoic acid signaling is a critical factor in NAFLD.
- Targeting RA pathways offers potential therapeutic strategies for NAFLD.
- Understanding RA's role in lipid metabolism and inflammation is key for NAFLD treatment.
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