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Murine Precision-Cut Liver Slices as an Ex Vivo Model of Liver Biology
Published on: March 14, 2020
Liver X receptors as potential therapeutic targets for multiple diseases
Guoqing Cao1, Yu Liang, Xian-Cheng Jiang
1Division of Cardiovascular Discovery, Lilly Research Laboratories, Eli Lilly & Company, Indianapolis, Indiana 46285, USA. Guoqing_Cao@lilly.com
Abstract:
Liver X receptor alpha (LXRalpha) and liver X receptor beta(LXRbeta are oxysterol receptors that regulate multiple target genes involved in cholesterol homeostasis. Recent studies also suggest that the pair of receptors may also be involved in glucose metabolism, inflammation and Alzheimer's disease by regulating critical molecules involved in these pathophysiological processes. Although the prototypic LXR agonists induce liver triglyceride accumulation by regulating the hepatic lipogenesis pathway, it is hoped that a subtype-specific agonist or selective modulators would provide the desired cardioprotection and other benefits without the undesirable concomitant induction of lipogenesis. This review intends to summarize the most recent progress in the field and provide an assessment of LXRs as potential therapeutic targets.
Insights
Liver X receptors (LXRs) regulate cholesterol, glucose, and inflammation. Selective LXR modulators may offer therapeutic benefits without causing liver fat accumulation, making them promising drug targets.
Area of Science:
- Molecular biology
- Metabolic pathways
- Neuroscience
Background:
- Liver X receptors alpha (LXRalpha) and beta (LXRbeta) are nuclear receptors that regulate cholesterol homeostasis.
- Emerging evidence links LXRs to glucose metabolism, inflammation, and Alzheimer's disease pathogenesis.
- Current LXR agonists can induce hepatic lipogenesis, a potential side effect limiting their therapeutic use.
Purpose of the Study:
- To review recent advancements in understanding LXR function.
- To assess the therapeutic potential of LXRs, focusing on selective modulation.
- To explore strategies for achieving therapeutic benefits while avoiding lipogenesis.
Main Methods:
- Literature review of studies on LXRalpha and LXRbeta.
- Analysis of gene regulation by LXR subtypes.
- Evaluation of LXR agonists and selective modulators in preclinical models.
Main Results:
- LXRs play a multifaceted role beyond cholesterol, impacting metabolic and inflammatory diseases.
- Selective LXR modulation strategies are being developed to target specific pathways.
- Understanding subtype-specific functions is crucial for therapeutic development.
Conclusions:
- LXRs represent promising therapeutic targets for a range of diseases.
- Developing subtype-specific agonists or selective modulators is key to maximizing benefits and minimizing side effects like lipogenesis.
- Further research is warranted to fully elucidate LXR roles and optimize therapeutic strategies.
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