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Updated: May 17, 2026

Reverse Yeast Two-hybrid System to Identify Mammalian Nuclear Receptor Residues that Interact with Ligands and/or Antagonists
Published on: November 15, 2013
[New pathophysiological mechanisms of metabolic syndrome: implication of orphan nuclear receptors?]
Abstract:
This review focuses on a number of new data on biology and pathophysiology of the metabolic syndrome (MetS) and the involvement of nuclear receptors that have been presented during the last Endocrine Society meeting, held in Houston in June 2012. Several studies have reported beneficial effects of various orphan nuclear receptors, including SHP (Small Heterodimeric Partner, NR0B2) and LXR (Liver X Receptor, NR1H3 and NR1H2), on various components of MetS. By using an inactivation model of SHP, David Moore has shown that SHP exerts "antidiabetic" effects but associated with hepatic steatosis development. He also showed that DLPC (dilauroyl phosphatidylcholine), an unconventional phospholipid, exhibited anti-diabetic properties through its binding to LRH-1 (Liver Receptor Homolog-1, NR5A2), a molecular partner of SHP. Interestingly, Carolyn Cummins investigated LXR α and β isoforms knock-out mice and provided experimental evidence for the detailed mechanisms involved in the deleterious metabolic effects of glucocorticoids, pointing out to the functional interaction between LXRβ, and the glucocorticoid receptor. These new and original studies open new therapeutic opportunities for the management of metabolic disorders in humans by selective modulators of these receptors.
Insights
New research highlights the role of nuclear receptors in metabolic syndrome (MetS). Orphan nuclear receptors like SHP and LXR show potential benefits, while their interactions with other receptors offer new therapeutic avenues for metabolic disorders.
Area of Science:
- Endocrinology
- Molecular Biology
- Metabolic Research
Background:
- Metabolic syndrome (MetS) is a complex disorder with significant health implications.
- Nuclear receptors play a crucial role in regulating metabolic processes.
- Recent findings shed light on novel molecular players in MetS pathophysiology.
Purpose of the Study:
- To review recent advancements in understanding the biology and pathophysiology of MetS.
- To explore the involvement of specific nuclear receptors in MetS.
- To identify potential therapeutic targets for metabolic disorders.
Main Methods:
- Review of data presented at the 2012 Endocrine Society meeting.
- Analysis of studies involving inactivation models of Small Heterodimeric Partner (SHP).
- Investigation of Liver X Receptor (LXR) alpha and beta isoform knockout mice.
Main Results:
- SHP demonstrates "antidiabetic" effects but is linked to hepatic steatosis.
- Dilauroyl phosphatidylcholine (DLPC) shows anti-diabetic properties via LRH-1 binding.
- Functional interactions between LXRβ and the glucocorticoid receptor explain glucocorticoid-induced metabolic effects.
Conclusions:
- Orphan nuclear receptors like SHP and LXR offer promising therapeutic targets for MetS.
- Understanding receptor interactions provides insights into metabolic regulation.
- Selective modulators of these nuclear receptors present new opportunities for managing human metabolic disorders.
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