| 2005 |
RORα directly activates transcription of Bmal1 through two conserved ROR-response elements (ROREs) in the Bmal1 promoter, functioning as a positive component of the cell-autonomous core circadian clock. Loss of endogenous RORα protein dampens circadian rhythm of Bmal1 transcription. |
Transient transfection reporter assays, RORE mutagenesis, RNAi knockdown in cultured cells, behavioral analysis of RORα-deficient staggerer mice |
Nature structural & molecular biology |
High |
15821743
|
| 2001 |
RORα1 inhibits TNFα-induced IL-6, IL-8, and COX-2 expression in smooth-muscle cells by reducing p65 translocation and transcriptionally upregulating IκBα via a ROR response element in the IκBα promoter, thereby negatively interfering with the NF-κB signaling pathway. |
Adenoviral overexpression, Western blotting, immunostaining, EMSA, promoter reporter assays |
EMBO reports |
High |
11252722
|
| 2006 |
In SCA1 mice, mutant ATXN1 destabilizes RORα, depleting it from Purkinje cells and reducing expression of RORα-controlled genes. Evidence points to existence of a complex containing ATXN1, RORα, and the RORα coactivator Tip60, linking RORα and Tip60 to SCA1 pathogenesis. |
Conditional transgenic mouse model, Co-immunoprecipitation, gene expression analysis, behavioral assessment |
Cell |
Medium |
17110330
|
| 1998 |
Targeted disruption of the Rora DNA-binding domain produces mice that phenocopy staggerer mice, demonstrating that staggerer defects are caused by absence of functional RORα protein; the null allele fails to complement staggerer, establishing sg as a loss-of-function allele of Rora. |
Gene targeting in ES cells (null mutation), histological analysis, Northern blot, complementation testing |
Mechanisms of development |
High |
9510031
|
| 2004 |
RORα directly regulates the carnitine palmitoyltransferase-1 (CPT-1) and caveolin-3 promoters in skeletal muscle cells, with activity coactivated by p300 and PGC-1, implicating RORα in control of lipid homeostasis in skeletal muscle. |
Dominant-negative RORα expression, promoter reporter assays, coactivator cotransfection |
The Journal of biological chemistry |
Medium |
15199055
|
| 2002 |
RORα regulates Reverb-α (NR1D1) transcription via a monomeric ROR response element in the Reverb-α promoter; RORα binds this site (demonstrated by EMSA), and GRIP-1/TIF-2 (but not SRC-1) coactivates RORα-stimulated Reverb-α promoter activity. |
Northern blot, RT-PCR in staggerer mice, transient transfection reporter assays, EMSA, promoter mutagenesis, coactivator cotransfection |
The Journal of biological chemistry |
High |
12114512
|
| 2007 |
RORα positively regulates Cyp7b1 (oxysterol 7α-hydroxylase) transcription via ROREs in its promoter; loss of RORα in staggerer mice suppresses Cyp7b1 expression and increases LXRα target gene expression. RORα and LXRα mutually suppress each other in vivo. |
RORα null (staggerer) mouse analysis, promoter reporter assays, transfection of RORα in hepatocytes, LXR null mouse comparison |
Molecular pharmacology |
High |
18055760
|
| 2011 |
RORα is a direct transcriptional target of p53 (contains functional p53 response elements); DNA damage-induced RORα stabilizes p53 in a HAUSP/Usp7-dependent manner and activates a subset of p53 target genes specifically involved in apoptosis. |
Genome-wide screen, luciferase reporter assays with p53-RE mutagenesis, microarray analysis, Drosophila in vivo apoptosis model |
Molecular cell |
High |
22152482
|
| 2012 |
RORα directly regulates SEMA3F transcription (demonstrated by ChIP and luciferase reporter assay) in breast cancer cells; restoring RORα expression reprograms cancer cells and inhibits tumor invasion in a SEMA3F-dependent manner in 3D culture and nude mouse xenograft. |
Chromatin immunoprecipitation (ChIP), luciferase reporter assay, 3D culture, siRNA knockdown, xenograft |
Cancer research |
High |
22350413
|
| 2014 |
RORα binds to the heptad repeat and marked box region of E2F1 in a non-canonical pathway, suppressing E2F1-regulated transcription; RORα recruits HDAC1 to the complex to inhibit E2F1 acetylation and DNA-binding activity, thereby inhibiting cell cycle progression. |
Co-immunoprecipitation, domain mapping, HDAC inhibition rescue, reporter assays, siRNA knockdown in mammary epithelial cells |
Molecular and cellular biology |
High |
24891616
|
| 2017 |
Hepatic RORα controls lipid homeostasis by specifically binding and recruiting HDAC3 to PPARγ target gene promoters, causing transcriptional repression of PPARγ; liver-specific Rorα deletion leads to dysregulation of PPARγ signaling, hepatic steatosis, obesity, and insulin resistance on high-fat diet. |
Liver-specific Rorα knockout mice, global transcriptome analysis, ChIP, Co-immunoprecipitation with HDAC3, PPARγ antagonist rescue |
Nature communications |
High |
28757615
|
| 2017 |
RORα/HDAC3 co-recruitment to NF-κB target gene promoters causes dismissal of CBP and BRD4, thereby repressing NF-κB transcriptional activity in intestinal epithelial cells; IEC-specific RORα deletion leads to excessive intestinal inflammation. |
IEC-specific RORα knockout mice, transcriptome analysis, ChIP, DSS colitis model |
Proceedings of the National Academy of Sciences of the United States of America |
High |
31570593
|
| 2019 |
Maresin 1 (MaR1), a DHA metabolite, was identified as an endogenous ligand of RORα that enhances RORα expression and transcriptional activity; RORα in turn transcriptionally induces 12-lipoxygenase (12-LOX), a key enzyme in MaR1 biosynthesis, forming a MaR1/RORα/12-LOX autoregulatory circuit. |
Ligand-binding assays, reporter assays, ChIP, RORα-dependent MaR1 protection experiments in vivo |
The Journal of clinical investigation |
Medium |
30855276
|
| 2014 |
20-hydroxyvitamin D3 [20(OH)D3] and 20,23-dihydroxyvitamin D3 function as antagonists/inverse agonists of RORα, inhibiting RORE-driven reporter activity and RORα-target gene (Bmal1, G6pase) promoter activation; molecular modeling with the RORα LBD crystal structure predicts good binding. |
Tet-on RORα expression system + RORE-LUC reporter, mammalian 2-hybrid LBD-LXXLL assay, molecular modeling using LBD crystal structure |
FASEB journal |
Medium |
24668754
|
| 2015 |
RORα directly suppresses SOCS3 gene transcription; loss of RORα leads to decreased proinflammatory and increased anti-inflammatory cytokines in retinopathy. Inhibition of SOCS3 abolishes the vasoprotective effects of RORα deficiency, establishing RORα→SOCS3 as a pathway in pathological retinal angiogenesis. |
RORα genetic deficiency mouse model (oxygen-induced retinopathy), promoter reporter assays, siRNA inhibition of SOCS3 |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
26243880
|
| 2017 |
RORα directly binds to a specific ROR response element on the Sema3e promoter and negatively regulates Sema3e promoter-driven transcription; genetic deficiency of RORα induces Sema3e expression in retinal ganglion cells to suppress pathological retinal neovascularization. |
Promoter-driven luciferase reporter assay, ChIP, AAV2-shRNA knockdown of Sema3e in RORα-deficient mice |
FASEB journal |
Medium |
28646017
|
| 2009 |
RORα directly trans-activates the Il-6 gene in astrocytes (necessary for basal IL-6 levels); after inflammatory stimulation, absence of RORα results in excessive IL-6 upregulation via indirect repression of NF-κB signaling, demonstrating bi-directional regulation of IL-6 by RORα. |
RORα loss-of-function mutant mice (staggerer), reporter assays, cytokine measurement, immunostaining |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
19955433
|
| 2009 |
Overexpression of RORα4 in 3T3-L1 cells impairs adipogenesis (decreased adipogenic markers and lipid accumulation); mouse embryonic fibroblasts from staggerer mice differentiate more efficiently into adipocytes, a phenotype reversed by ectopic RORα4 restoration. |
Overexpression in 3T3-L1, staggerer MEF differentiation assay, ectopic RORα4 rescue |
FEBS letters |
Medium |
19450581
|
| 2006 |
Subcellular localization of RORα is isoform- and cell line-dependent: RORα1 localizes exclusively to the nucleus (lacks cytoplasmic signal in its A/B domain), while RORα2, 3, and 4 show cytoplasmic and cell-membrane association. The C-terminal α-helix 12 mediates membrane association; the hinge region/LBD mediates nuclear localization. |
Isoform-specific expression constructs, domain deletion/swap experiments, subcellular fractionation, immunofluorescence microscopy |
Biochimica et biophysica acta |
Medium |
16806533
|
| 1997 |
The staggerer mutation is a deletion in the common coding region of RORα isoforms; RORα1 and RORα4 are specifically co-expressed in the murine and human cerebellum, generated by alternative promoter usage and exon splicing, indicating that loss of both isoforms underlies the cerebellar phenotype. |
High-resolution genetic and physical mapping, RT-PCR isoform analysis, Northern blot in cerebellum |
Genomics |
Medium |
9226375
|
| 2022 |
RORα cooperatively binds with RORγt to a previously unidentified Rorc cis-regulatory element to maintain RORγt expression and Th17 lineage stability in peripheral tissues; RORα is dispensable for initial Th17 differentiation but required for optimal Th17 responses in vivo. |
T-cell-specific RORα conditional KO mice, RNA-seq, ATAC-seq, ChIP-seq |
Immunity |
High |
36243007
|
| 2021 |
In skin-resident Tregs, RORα suppresses IL-4 expression and enhances DR3 (death receptor 3/TL1A receptor) expression; deletion of RORα in Tregs prevents sequestration of TL1A, resulting in enhanced ILC2 activation and exaggerated eosinophilia. |
Treg-specific RORα conditional deletion mouse models of atopic dermatitis, flow cytometry, cytokine measurement |
Science immunology |
Medium |
29500225
|
| 2021 |
RORα is required for TH17 cell pathogenicity independent of RORγt; T-cell-specific deletion of RORα reduces EAE and colitis development by decreasing TH17 cell development, lowering tissue-homing chemokine receptors/integrins, and increasing Foxp3+ Tregs. A selective RORα antagonist phenocopies the genetic deletion and inhibits human TH17 differentiation. |
T-cell-specific Rorα conditional KO, EAE and colitis mouse models, pharmacological antagonism with selective small molecule, human TH17 differentiation assay |
Nature communications |
High |
33397953
|
| 2021 |
RORα expression in thymic progenitors represses T cell development while promoting ILC2 development; mechanistically, RORα overrides BCL11B-mediated repression of Nfil3 and Id2, allowing ID2 to repress E proteins and promote ILC2 differentiation over T cell commitment. |
RNA-seq, ATAC-seq, ChIP-seq, conditional deletion and overexpression mouse models |
Nature immunology |
High |
33432227
|
| 2021 |
RORα promotes mTORC1 activation in CD4+ T cells; genome-wide occupancy (ChIP-seq) and transcriptome analysis reveal RORα as a direct transcriptional driver of mTORC1 pathway genes; Rorα deficiency in CD4+ T cells greatly reduces T cell-mediated colitis. |
CD4-specific Rorα conditional KO, genome-wide ChIP-seq, RNA-seq, T-cell transfer colitis model |
Cell reports |
High |
34525365
|
| 2017 |
RORα directly represses IL-6 transcription in cardiomyocytes; loss of RORα leads to enhanced IL-6 expression, proinflammatory STAT3 activation, decreased mitochondrial number and function, oxidative stress, hypertrophy, and death of cardiomyocytes upon angiotensin II exposure. |
Staggerer mouse model (in vivo), neonatal rat ventricular myocyte overexpression/silencing (in vitro), luciferase reporter, Western blot |
American journal of physiology. Heart and circulatory physiology |
Medium |
30387679
|
| 2017 |
RORα enhances mitochondrial quality by regulating expression of Bnip3 and PGC-1α; liver-specific RORα knockout mice show mitochondrial fission defects with downregulation of Bnip3 and phospho-Drp1, and are more susceptible to NASH. |
Liver-specific Rorα KO mice, high-fat diet NASH model, gene expression analysis, oxygen consumption measurement |
Scientific reports |
Medium |
29167529
|
| 2021 |
RORα induces transcription of Atp6v1g1 (a vacuolar H+-ATPase subunit) and other lysosomal function genes, thereby enhancing lysosomal acidification and autophagic flux in hepatocytes; hepatocyte-specific RORα deletion impairs lysosomal acidity, mTOR translocation, cathepsin D maturation, and autophagic flux. |
Hepatocyte-specific Rorα KO mice, LysoSensor assay, LC3/p62/NBR1 accumulation, adenoviral RORα restoration |
Hepatology communications |
Medium |
34558854
|
| 2016 |
RORα regulates macrophage M2 polarization via activation of AMPKα; RORα agonist (cholesterol sulfate) induces M2 markers (Arg1, Ym1, Fizz1) and phosphorylation of AMPKα/ACC; RORα antagonism or AMPKα inhibition abolishes this effect. |
RORα agonist/antagonist pharmacology in RAW264.7 cells, RORα overexpression, AMPKα inhibitor (Compound C) |
Molecular immunology |
Medium |
27788394
|
| 2019 |
RORα protects against LPS-induced inflammation by regulating SIRT1 expression, which in turn affects deacetylation and nuclear translocation of NF-κB p65; specifically, RORα overexpression suppresses acetylation of NF-κB p65 at lysine 310 via SIRT1 upregulation. |
Lentiviral overexpression/siRNA knockdown in macrophages, LPS model in vivo, SIRT1 agonist rescue experiment |
Archives of biochemistry and biophysics |
Medium |
31071300
|
| 2024 |
RORA binds the CD274 (PD-L1) promoter and forms an inhibitory complex with HDAC3 to suppress PD-L1 expression; DDX3X competes with HDAC3 for binding to RORA, and DDX3X overexpression promotes RORA release from the repressive complex, increasing PD-L1 expression. |
ChIP, Co-immunoprecipitation, overexpression/knockdown in melanoma cells, RORA agonist combined with anti-CTLA4 in vivo |
Cancer research |
High |
38718296
|
| 2021 |
RORα suppresses superoxide generation in mitochondria by directly targeting respiratory complex I subunit genes NDUFS6 and NDUFA11 (identified by ChIP and gene co-expression), thereby inhibiting ROS-mediated macrophage infiltration and cancer-associated inflammation in breast cancer. |
Gene co-expression analysis, ChIP, co-culture assay, 4T1 xenograft |
International journal of molecular sciences |
Medium |
34639006
|
| 2013 |
Neoruscogenin (a steroidal sapogenin) was identified as a potent, high-affinity, bioavailable agonist of RORα (NR1F1) using cell-free reporter assays; it activates RORα target gene expression in vitro and in vivo with selectivity over other nuclear receptors. |
High-throughput cell-free RORα reporter screening, extract deconvolution, structural elucidation, target gene expression assays in vitro and in vivo, nuclear receptor selectivity panel |
Journal of biomolecular screening |
Medium |
23896689
|
| 2020 |
RORA agonist RS-2982 increases hepatic MIR122 promoter activity in hepatocytes; in HFD and atherogenic diet mouse models, RS-2982 increases hepatic MIR122 precursors and reduces hepatic triglyceride biosynthesis by reducing expression of lipogenic enzymes. |
Chemical library screen, luciferase reporter assays (MIR122 promoter), HFD/atherogenic diet mouse models, in vivo injection |
Gastroenterology |
Medium |
32450149
|
| 2019 |
SORBS2 stabilizes RORA mRNA by directly binding to the 3'UTR of RORA mRNA, reducing its degradation; this post-transcriptional regulation of RORA by SORBS2 mediates SORBS2's anti-tumor effects on HCC cells. |
RNA immunoprecipitation (RIP), pull-down assay, luciferase reporter (3'UTR), mRNA stability assay |
Liver international |
Medium |
31365778
|
| 2018 |
The barrel cortex phenotype of staggerer mice results from RORα being cell-autonomously required in the thalamus for thalamocortical axon (TCA) cluster organization, and in the somatosensory cortex for dendritic maturation of layer IV neurons; Sema7a, Neph, and Adcy8 are identified as RORα-regulated genes in this process. |
Conditional RORα deletion in thalamus or cortex, microarray analysis, histological analysis of barrels/barreloids |
Cerebral cortex |
Medium |
29040410
|
| 2024 |
RORA acts as a CEC-specific molecular switch driving limbal stem cell (LSC) differentiation into corneal epithelial cells by activating PITX1; RORA establishes CEC-specific enhancers and chromatin interactions between CEC gene promoters and distal regulatory elements, while silencing LSC-specific promoters and disrupting promoter-anchored chromatin loops. |
Single-cell RNA-seq, ChIP-seq, ATAC-seq, Hi-C chromatin interaction analysis, RORA gain/loss-of-function |
Nature communications |
High |
38177186
|
| 2017 |
RORα and RORγt co-regulate a defined set of human Th17 signature genes including IL-17A, IL-17F, IL-23R, CCL20, and CCR6; siRNA knockdown of RORα in human Th17 cells reduces expression of these key Th17 genes, demonstrating an overlapping but weaker role of RORα versus RORγt. |
siRNA knockdown (RORγt, RORα), RNA-seq, selective RORγt small molecule modulators as pharmacological controls |
PloS one |
Medium |
28763457
|
| 2019 |
RORα mediates induction of osteoarthritis by oxysterol metabolites produced by CH25H and CYP7B1 in chondrocytes; overexpression of CH25H or CYP7B1 causes experimental OA, while knockdown abrogates OA pathogenesis, with RORα acting as downstream effector of cholesterol metabolism changes. |
Adenoviral overexpression/knockout/knockdown in mouse joints, in vivo OA induction models, epistasis experiments with RORα |
Nature |
High |
30728500
|
| 2014 |
miR-137 directly targets the 3'UTR of RORα in a site-specific manner, establishing a direct biological link between MIR137 and RORA as autism candidate genes. |
Luciferase 3'UTR reporter assay with site-specific mutagenesis |
Scientific reports |
Medium |
24500708
|
| 2020 |
In skeletal muscle, specific knockout of Rorα (secondary feedback loop) results in aberrant expression of a large number of non-oscillating genes and proteins (rather than primarily affecting circadian oscillation), leading to distinct metabolic and contractile phenotypes compared to PER2 knockout. |
Muscle-specific Rorα KO mice, global gene expression analysis, metabolomics, muscle function assessment |
The Journal of physiology |
Medium |
38850551
|