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Published on: November 15, 2013
Nuclear Receptors as Therapeutic Targets in Liver Disease: Are We There Yet?
Swetha Rudraiah1, Xi Zhang1, Li Wang1,2,3
1Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut 06269.
Abstract:
Nuclear receptors (NR) are ligand-modulated transcription factors that play diverse roles in cell differentiation, development, proliferation, and metabolism and are associated with numerous liver pathologies such as cancer, steatosis, inflammation, fibrosis, cholestasis, and xenobiotic/drug-induced liver injury. The network of target proteins associated with NRs is extremely complex, comprising coregulators, small noncoding microRNAs, and long noncoding RNAs. The importance of NRs as targets of liver disease is exemplified by the number of NR ligands that are currently used in the clinics or in clinical trials with promising results. Understanding the regulation by NR during pathophysiological conditions, and identifying ligands for orphan NR, points to a potential therapeutic approach for patients with liver diseases. An overview of complex NR metabolic networks and their pharmacological implications in liver disease is presented here.
Insights
Nuclear receptors (NRs) regulate liver functions and are implicated in liver diseases. Targeting NRs offers a promising therapeutic strategy for liver pathologies.
Area of Science:
- Molecular biology
- Hepatology
- Pharmacology
Background:
- Nuclear receptors (NRs) are crucial transcription factors regulating cellular processes.
- NRs are implicated in various liver diseases, including cancer, steatosis, and inflammation.
- The complex network of NR targets includes coregulators and noncoding RNAs.
Purpose of the Study:
- To provide an overview of NR metabolic networks in liver disease.
- To discuss the pharmacological implications of NRs in liver pathologies.
- To highlight the therapeutic potential of NR-targeting ligands.
Main Methods:
- Literature review of NR functions in liver physiology and pathology.
- Analysis of NR-mediated molecular pathways.
- Examination of current and emerging NR-targeting therapies.
Main Results:
- NRs play diverse roles in liver cell differentiation, metabolism, and response to injury.
- Dysregulation of NR networks is associated with numerous liver diseases.
- Several NR ligands are in clinical use or trials for liver conditions.
Conclusions:
- Understanding NR regulation in liver disease is key for therapeutic development.
- Targeting NR pathways presents a promising approach for treating liver diseases.
- Identification of ligands for orphan NRs could unlock new treatment strategies.
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