| 1995 |
LXRα (NR1H3) forms a heterodimer with endogenous RXR that binds a distinct LXR response element (LXRE) and mediates 9-cis retinoic acid-dependent transcriptional activation; unlike RXR/RAR heterodimers, the LXRα/RXR interaction shifts RXR from a silent DNA-binding partner to an active ligand-binding subunit responsive to retinoids. |
Transient transfection/reporter gene assays, EMSA, dominant-negative receptor constructs |
Genes & development |
High |
7744246
|
| 1997 |
LXRα (NR1H3) is activated by oxysterols (24(S),25-epoxycholesterol and 24(S)-hydroxycholesterol) at physiological concentrations; an LXR response element was identified in the promoter of the cholesterol 7α-hydroxylase gene, defining LXRs as a hormone-signaling pathway responsive to oxysterols. |
Ligand-binding assays, reporter gene assays, EMSA |
The Journal of biological chemistry |
High |
9013544
|
| 1998 |
LXRα (NR1H3) knockout mice fail to induce cholesterol 7α-hydroxylase (Cyp7a) transcription upon dietary cholesterol loading and rapidly accumulate hepatic cholesterol, establishing LXRα as the major intracellular cholesterol sensor and feed-forward regulator of bile acid synthesis. |
LXRα knockout mice, dietary cholesterol challenge, gene expression analysis |
Cell |
High |
9630215
|
| 1998 |
Transactivation by ligand-activated RLD-1 (LXRα ortholog) is synergistically enhanced by PKA- and PKC-activating agents (PGE2, TPA, 8-bromo-cAMP, forskolin) and blocked by protein kinase inhibitors H-89 and bisindolylmaleimide, indicating that LXRα transcriptional activity can be modulated through phosphorylation-dependent signaling pathways. |
Stable transfection of chimeric GR-RLD-1 constructs, reporter gene assays, pharmacological kinase inhibitors |
Biochemical and biophysical research communications |
Medium |
9500983
|
| 2000 |
LXRα (NR1H3) controls cellular cholesterol efflux by transcriptionally inducing ABCA1; retroviral overexpression of LXRα or oxysterol treatment induces ABCA1 mRNA 7–30-fold and stimulates apolipoprotein AI-mediated cholesterol efflux, while dominant-negative LXRα attenuates oxysterol-induced ABCA1 expression. |
Retroviral overexpression, dominant-negative constructs, cholesterol efflux assays, Tangier disease fibroblasts as genetic controls |
Proceedings of the National Academy of Sciences of the United States of America |
High |
11035776
|
| 2000 |
LXRα (NR1H3) activates the SREBP-1 lipogenic program; synthetic LXR agonist T0901317 induces coordinate expression of fatty acid biosynthetic genes and raises plasma triglycerides in mice and hamsters, revealing a novel role for LXRα in lipogenesis beyond cholesterol metabolism. |
In vivo pharmacology in mice and hamsters, cell culture gene expression, complementary KO studies |
Genes & development |
High |
11090131
|
| 2001 |
LXRα/RXR heterodimers directly regulate apolipoprotein E (apoE) transcription through conserved LXR response elements in macrophage/adipose enhancers ME.1 and ME.2; lipid-inducible apoE expression is abolished in Lxrα−/−Lxrβ−/− double-knockout mice. |
EMSA, reporter gene assays, LXR single and double knockout mice |
Proceedings of the National Academy of Sciences of the United States of America |
High |
11149950
|
| 2001 |
PPARα and PPARγ activators induce ABCA1 expression and cholesterol efflux in human macrophages through upregulation of LXRα; this LXRα-mediated ABCA1 induction is absent in Tangier disease macrophages, positioning LXRα downstream of PPAR signaling in reverse cholesterol transport. |
Primary human macrophage culture, pharmacological PPAR agonists, Tangier disease cell controls, cholesterol efflux assays |
Nature medicine |
High |
11135616
|
| 2005 |
LXRs (including LXRα/NR1H3) transrepress TLR3-, TLR4-, and TLR9-induced inflammatory genes in macrophages through a p65/IRF3-independent mechanism, cooperating with GR and PPARγ to synergistically suppress distinct subsets of TLR-responsive genes. |
Macrophage reporter assays, siRNA knockdown, combinatorial nuclear receptor perturbation experiments |
Cell |
High |
16143103
|
| 2007 |
SIRT1 physically interacts with LXRα (NR1H3), deacetylates a conserved lysine K432 adjacent to the AF2 activation domain, and promotes subsequent ubiquitination; K432 mutation eliminates SIRT1-dependent LXRα activation and reduces expression of LXR target genes including ABCA1 in vivo. |
Co-immunoprecipitation, mutagenesis of K432, in vivo SIRT1 loss-of-function, Western blot, gene expression |
Molecular cell |
High |
17936707
|
| 2007 |
Ligand-dependent conjugation of SUMO2/3 to LXRα (NR1H3) targets it to promoters of TLR-responsive inflammatory genes, where it prevents signal-dependent removal of NCoR corepressor complexes required for transcriptional activation; mutagenesis and natural oxysterol studies show that transactivation and SUMOylation-dependent transrepression activities of LXRα are independently regulated. |
SUMOylation assays, promoter ChIP, mutagenesis, NCoR co-immunoprecipitation, natural vs. synthetic ligand comparisons |
Molecular cell |
High |
17218271
|
| 2007 |
RORα (NR1F1) and LXRα (NR1H3) mutually suppress each other's transcriptional activity: LXRα suppresses RORα-driven Cyp7b1 promoter activation, and RORα inhibits both constitutive and ligand-dependent LXRα activity; loss of RORα in vivo increases LXRα target gene expression and causes hepatic triglyceride accumulation, while LXRα/β-deficient mice show activation of RORα targets. |
Reporter gene assays, RORα knockout mice, LXRα/β double-knockout mice, transfection of endogenous target genes |
Molecular pharmacology |
High |
18055760
|
| 2008 |
LXRα (NR1H3)/RXR heterodimers directly bind an LXR response element in the endoglin (ENG) promoter and mediate LXRα-dependent transcriptional activation of ENG in human trophoblast JAR cells; T0901317 treatment significantly increases ENG mRNA and protein, suggesting a mechanism by which LXRα regulates trophoblast invasion. |
Transfection/reporter assays, EMSA, RT-PCR, Western blot |
Biology of reproduction |
Medium |
18276933
|
| 2014 |
NR1H3 (LXRα) promotes hepatocyte differentiation through a reciprocal regulatory network with HNF4α; overexpression of NR1H3 in HepaRG cells accelerates hepatic maturation (CYP activity, urea/albumin secretion, glycogen storage) and the resulting cells rescue lethal fulminant hepatic failure in a mouse model. |
Transcriptomic screening, overexpression in HepaRG cells, functional hepatocyte assays, in vivo transplantation |
Journal of hepatology |
Medium |
25073010
|
| 2014 |
In utero malnutrition induces altered DNA methylation of the Lxra 5′ UTR in sperm of F1 male mice, which is transmitted to and maintained in somatic liver cells of F2 offspring, resulting in reduced Lxra expression and altered lipogenic gene expression. |
Mouse IUGR model, bisulfite sequencing, sperm and liver DNA methylation analysis, gene expression |
Cell metabolism |
Medium |
24794974
|
| 2016 |
The NR1H3 p.Arg415Gln mutation found in familial multiple sclerosis patients disrupts NR1H3 heterodimerization and transcriptional activation of target genes; mutant NR1H3 alters gene expression profiles, indicating dominant-negative disruption of LXRα-dependent transcriptional regulation as a mechanism in MS pathogenesis. |
Family genetic analysis, heterodimerization assays, reporter gene assays, protein expression and target gene profiling |
Neuron |
Medium |
27253448
|
| 2023 |
NR1H3 directly represses NLRP3 inflammasome activity in cardiomyocytes; NR1H3 knockout worsens CLP-induced septic cardiac dysfunction with exacerbated NLRP3-mediated inflammation, oxidative stress, mitochondrial dysfunction, and apoptosis, while T0901317 treatment improves cardiac function; Co-IP, luciferase reporter, and ChIP assays confirmed direct NR1H3–NLRP3 transcriptional repression. |
NR1H3 knockout mice, CLP sepsis model, T0901317 agonist, Co-IP, luciferase reporter assay, ChIP, RNA-seq |
Bioengineering & translational medicine |
Medium |
37206244
|
| 2023 |
NR1H3 activation regulates AMPK signaling; T0901317 treatment increases AMPK and ACC phosphorylation in HL-1 cardiomyocytes, and NR1H3 knockout abolishes the protective effect of psoralidin in septic mice, placing NR1H3 upstream of AMPK in the NR1H3/AMPK pathway. |
NR1H3 knockout mice, CLP model, T0901317 agonist, Western blot for p-AMPK/p-ACC, pharmacological rescue |
Free radical biology & medicine |
Medium |
37085126
|
| 2020 |
Maternal fructose consumption increases miR-206 expression in offspring rat livers, which post-transcriptionally suppresses Lxra (Nr1h3) expression; pyrosequencing showed no change in Lxra promoter DNA methylation, isolating miR-206-mediated regulation as the mechanism linking maternal diet to reduced hepatic Lxra and decreased serum HDL-C. |
Rat dietary model, RT-PCR, pyrosequencing (DNA methylation), miRNA expression profiling |
The Journal of nutritional biochemistry |
Medium |
32388164
|
| 2026 |
NR1H3+ tissue macrophages mediate an evolutionarily conserved anti-inflammatory programme by suppressing the non-canonical NF-κB pathway; functional analyses in tree shrew and human macrophages confirmed NR1H3-dependent suppression of non-canonical NF-κB signaling, and during acute EBV infection NR1H3+ macrophages undergo inflammatory reprogramming and act as a major intercellular signalling hub. |
Single-cell transcriptomics, cross-species dataset integration, NR1H3 functional assays in macrophages, NF-κB pathway reporter/Western blot |
Nature communications |
Medium |
41957356
|
| 2025 |
BPS (bisphenol S) directly binds NR1H3 protein (stable docking, −20.64 kcal/mol) and reduces NR1H3 protein levels and transcriptional activity in human Sertoli cells; NR1H3 knockdown impairs Sertoli cell survival, while NR1H3 overexpression partially rescues BPS-induced cytotoxicity, establishing NR1H3 as a critical regulator of Sertoli cell survival targeted by BPS. |
Pharmacophore mapping, molecular docking, molecular dynamics, MM/GBSA, NR1H3 KD/overexpression, luciferase reporter, Western blot |
Ecotoxicology and environmental safety |
Medium |
41241997
|
| 2025 |
NR1H3 activation upregulates YBX2, a novel anti-ROS transcription factor/RNA-binding protein, suggesting a negative feedback mechanism on inflammation; NR1H3 agonist treatment induced 28 ROS regulators including YBX2, and YBX2 deficiency increased cellular ROS while overexpression suppressed 27 proinflammatory genes induced by hyperlipidemia+CKD. |
HFD+5/6 nephrectomy mouse model, NR1H3 agonist treatment, RNA-seq, YBX2 KO and overexpression |
Redox biology |
Medium |
40505347
|
| 2024 |
LXRα (Nr1h3) functions as an intracellular cholesterol sensor via direct binding of endogenous cholesterol-derived ligands; a dominant-negative mutation that selectively reduces response to endogenous ligands while preserving synthetic agonist activation causes rapid MASH-like pathology (ballooning, inflammation, fibrosis, elevated liver cholesterol) on high-fat/high-cholesterol diet, and re-engagement with synthetic agonist reverses disease. |
Knock-in dominant-negative mouse model, high-fat/high-cholesterol diet, histology, liver lipid quantification, synthetic agonist rescue |
bioRxivpreprint |
Medium |
|