| 1997 |
ELF3 (ESE-1) was identified as an epithelium-specific ETS transcription factor containing two DNA-binding domains: an ETS domain and an A/T hook domain (found in HMG proteins). It binds with high affinity to ETS binding sites in the SPRR2A promoter and transactivates SPRR2A and the Endo A gene enhancer, establishing it as a transcriptional activator of keratinocyte differentiation target genes. |
Molecular cloning, electrophoretic mobility shift assay (EMSA), transient transfection/luciferase reporter assay |
Molecular and cellular biology |
High |
9234700
|
| 1998 |
ELF3 (ERT) activates transcription of the TGF-β type II receptor (RII) gene by binding to ETS binding sites in the TGF-β RII promoter (response element at +13 to +24 and multiple sites between -1816 and -82). Deletion mapping showed the transactivation domain resides in the amino terminus and the DNA-binding domain in the carboxyl-terminal region. |
Yeast one-hybrid screening, luciferase reporter assay, EMSA, deletion mapping |
The Journal of biological chemistry |
High |
9417054
|
| 1999 |
The human ELF3 gene contains nine exons spanning ~5.8 kb. A 1.5-kb fragment of the 5' upstream region acts as a functional promoter in epithelial cell lines, containing TATA and CCAAT boxes and potential binding sites for Ets factors and NF-κB. |
Genomic cloning, transfection experiments with promoter-reporter constructs |
Genomics |
Medium |
10049594
|
| 2000 |
ELF3 (ERT) overexpression in Hs578t breast cancer cells induces endogenous TGF-β type II receptor mRNA and protein expression, restores TGF-β growth inhibitory signaling (~50% growth reduction with exogenous TGF-β1), and reduces tumorigenicity in athymic mice, confirming ELF3 as a transcriptional activator of TGF-β RII in vivo. |
Retroviral overexpression, Northern blot, luciferase reporter assay, xenograft mouse model |
Oncogene |
High |
10644990
|
| 2000 |
ELF3 (ESE-1) is expressed in corneal epithelial cells and is upregulated during differentiation. It transactivates the regulatory element of cornea-specific K12 keratin. Introduction of ESE-1 antisense RNA in immortalized human corneal epithelial cells impairs their differentiation. |
Northern blot, luciferase reporter assay, antisense RNA loss-of-function |
Mechanisms of development |
Medium |
11025204
|
| 2001 |
Loss of ELF3 (ERT) expression in gastric cancer cell lines with undetectable TGF-β RII mRNA is linked to inactivation of a sequence-specific DNA binding protein (nuclear protein complex) that recognizes the ERT promoter element ESE (-186 to -177), suggesting that loss of this transcriptional activator contributes to silencing of ERT and subsequent TGF-β resistance. |
Promoter cloning, EMSA, transient transfection, deletion analysis |
Oncogene |
Medium |
11313868
|
| 2003 |
Induction of ELF3 (ESE-1) gene expression by IL-1β in synovial fibroblasts, chondrocytes, osteoblasts, and monocytes requires activation of NF-κB and binding of p50 and p65 NF-κB family members to a high-affinity NF-κB binding site in the ESE-1 promoter. Overexpression of IκB using adenoviral vector blocked IL-1β-induced ESE-1 mRNA expression. ChIP confirmed NF-κB binds the ESE-1 promoter in vivo. |
Luciferase reporter assay with promoter mutants, EMSA with supershift assay, adenoviral IκB overexpression, chromatin immunoprecipitation (ChIP) |
Arthritis and rheumatism |
High |
12746898
|
| 2003 |
ELF3 (ESE-1/Ese-1) cooperates functionally with the Skn-1a isoform of Oct-11 to drive SPRR2A expression in keratinocyte terminal differentiation. This cooperativity depends on an N-terminal pointed-like domain in Skn-1a; the Skn-1d1 isoform counteracts this cooperativity. Identifies ELF3 as part of a multi-factor complex regulating keratinocyte differentiation. |
Transient co-transfection reporter assays, domain deletion analysis |
The Journal of biological chemistry |
Medium |
12624109
|
| 2004 |
ELF3 (ESE-1) protein is cytoplasmic in human breast cancer cells. Stably expressed GFP-ESE-1 transforms MCF-12A human mammary epithelial cells via a cytoplasmic, non-transcriptional mechanism mediated by the unique 40-amino acid serine/aspartic acid-rich (SAR) domain. Nuclear localization of ESE-1 induces apoptosis via a transcription-dependent mechanism. Fusion of an NLS to ESE-1 or SAR domain inhibits transforming capacity. |
Stable transfection, GFP subcellular localization, NLS/NES fusion constructs, apoptosis assays, domain deletion analysis |
Molecular and cellular biology |
High |
15169914
|
| 2004 |
ELF3 (ESE-1) is a novel transcriptional mediator of angiopoietin-1 (Ang-1) expression in the setting of inflammation. ESE-1 binds to specific ETS sites within the Ang-1 promoter that are required for transactivation; mutation of a high-affinity ESE-1 binding site markedly reduces Ang-1 transactivation and cytokine inducibility. Transcriptional profiling confirmed direct induction of endogenous Ang-1 by ESE-1. |
Transient transfection reporter assay, site-directed mutagenesis of promoter, EMSA, transcriptional profiling |
The Journal of biological chemistry |
High |
14715662
|
| 2005 |
ELF3 (ESE-1) binds to multiple ETS sites on the COX-2 promoter and activates COX-2 expression in response to LPS and pro-inflammatory cytokines in monocytes/macrophages. Mutation of ETS sites in the COX-2 promoter or overexpression of dominant-negative ESE-1 inhibits LPS-mediated COX-2 induction. ESE-1's effect is enhanced by cooperation with NF-κB and NFAT. |
Luciferase reporter assay, promoter mutagenesis, EMSA, dominant-negative overexpression, co-transfection |
The FEBS journal |
High |
15794755
|
| 2008 |
ELF3 (ESE-1) expression in airway epithelial cells is upregulated by IL-1β and TNF-α via NF-κB activation. ESE-1 also upregulates ESE-3 expression and downregulates its own induction by cytokines (negative autoregulation). In Elf3 knockout mice, IL-6 expression is downregulated following inflammatory stimulation. |
NF-κB promoter analysis, transfection, siRNA, Elf3 knockout mouse |
Cell research |
High |
18475289
|
| 2008 |
ELF3 (ESE-1) is a potent transcriptional repressor of the type II collagen gene (COL2A1) in chondrocytes in response to IL-1β, via NF-κB-dependent binding to tandem ETS sites at -403/-381 bp in the COL2A1 promoter. ChIP confirmed IL-1β-induced ESE-1 binding to the COL2A1 promoter in vivo. ETS-1, by contrast, activates COL2A1 and blocks IL-1β inhibition. |
Transient co-transfection, siRNA, ChIP, EMSA, promoter deletion analysis |
Journal of cellular physiology |
High |
18044710
|
| 2008 |
ELF3 (ESE-1) mediates tolfenamic acid-induced EGR-1 expression and apoptosis in colorectal cancer cells. ESE-1 binds to an ETS binding site at -400/-394 bp in the EGR-1 promoter (confirmed by EMSA and ChIP), and tolfenamic acid promotes nuclear translocation of ESE-1. Silencing ESE-1 attenuates tolfenamic acid-induced EGR-1 expression and apoptosis. |
EMSA, ChIP, luciferase reporter assay, siRNA knockdown, nuclear translocation assay |
Molecular cancer therapeutics |
High |
19074849
|
| 2008 |
ELF3 (ESE-1) suppresses invasion of oral squamous cell carcinoma cells by transcriptionally repressing MMP-9 via an ETS binding site in the MMP-9 promoter. ESE-1 transfection reduces invasion activity and 92 kDa gelatinolytic activity, and luciferase/mutation analysis confirmed that the ETS binding site in the MMP-9 promoter mediates this suppression. |
Transfection, invasion assay, gelatin zymography, Northern blot, luciferase assay, mutation analysis |
Oral diseases |
Medium |
18302674
|
| 2010 |
ELF3 (ESE-1) plays a counter-regulatory role in angiotensin II (Ang II)-mediated vascular inflammation and remodeling. ESE-1 KO mice show exaggerated intimal medial thickness, perivascular fibrosis, T cell and macrophage infiltration, greater PCNA staining, blunted NOS2 (iNOS) induction, and an exaggerated systolic blood pressure response to Ang II compared to wild-type controls. |
ESE-1 knockout mice, Ang II infusion model, histology, immunostaining |
American journal of hypertension |
Medium |
20689519
|
| 2011 |
Elf3 regulates allergic airway inflammation by controlling dendritic cell (DC)-driven T cell differentiation. Elf3−/− mice show impaired IL-6 and IL-12 production by DCs, impaired Th1 and Th17 differentiation, and exaggerated Th2 responses with increased IgE. The impairment of IL-12 production was attributed to impaired IL-12p40 gene induction in Elf3-deficient DCs. |
Elf3 knockout mice, OVA sensitization/challenge models, ELISA, flow cytometry |
Journal of immunology |
High |
21948981
|
| 2011 |
ESE-1 (ELF3) SAR domain-mediated mammary cell transformation occurs exclusively in the cytoplasm. NLS mapped to six basic amino acids (242HGKRRR247) in the AT-hook domain. Two CRM1-dependent NES motifs were identified: NES1 in the pointed domain (102LCNCALEELRL112) and NES2 in the DNA binding domain (275LWEFIRDILI284). Site-specific mutation of NES2 abrogates transforming activity. The SAR domain is accessible for protein-protein interactions. |
GFP reporter subcellular localization, site-directed mutagenesis, NLS/NES fusion constructs, transformation assay |
Molecular cancer |
High |
21871131
|
| 2013 |
ELF3 is a repressor of androgen receptor (AR) transcriptional activity in prostate cancer cells. ELF3 physically interacts with AR (biochemical pulldown), and this interaction inhibits recruitment of AR to androgen response elements within target gene promoters. ELF3 knockdown increases AR transcriptional activity and promotes cell migration; ELF3 overexpression inhibits tumor growth in vitro and in xenograft models. |
Reporter-based transfection assays, endogenous AR target gene qPCR, siRNA knockdown, co-immunoprecipitation/pulldown, ChIP, xenograft mouse model |
Oncogene |
High |
23435425
|
| 2016 |
RIPK4 is upstream of ELF3 in keratinocytes: RIPK4 is required for PMA-inducible ELF3 gene expression. RIPK4 acts via phosphorylation and activation of IRF6, and IRF6 in turn regulates ELF3 expression. GRHL3, a downstream target of IRF6, also contributes to ELF3 regulation. ELF3 in this pathway regulates SPRR1A, SPRR1B, and TGM1 expression during keratinocyte cornification. |
siRNA knockdown of RIPK4, IRF6, GRHL3; qRT-PCR; Western blot |
Cellular signalling |
Medium |
27667567
|
| 2018 |
ELF3 promotes EMT in hepatocellular carcinoma by transcriptionally repressing miR-141-3p, thereby de-repressing ZEB1. ChIP assays showed ELF3 binds the miR-141-3p promoter to suppress its transcription. ELF3 knockdown reverses EMT via miR-141-3p upregulation and ZEB1 repression. |
Gain/loss-of-function studies, ChIP assay, Western blot, migration/invasion assays |
Cell death & disease |
Medium |
29523781
|
| 2018 |
ELF3 is a negative regulator of EMT transcription factor ZEB1 through its function as an antagonist of Wnt and RAS oncogenic signaling in colorectal cancer cells. ELF3 expression is reduced in response to oncogenic signaling (mutant β-catenin, inducible mutant RAS) and is anti-correlated with ZEB1 and EMT markers. |
RNA-Seq, siRNA, Western blot, analysis of colorectal cancer TCGA datasets, tumor/normal protein localization |
Cancer biology & therapy |
Medium |
30148686
|
| 2019 |
ELF3 is amplified at chromosome 1q32.1 in lung adenocarcinoma (LUAD), and ELF3 expression is required for tumor growth. Gene dosage and promoter hypomethylation affect the locus in up to 80% of LUAD analyzed. Pan-cancer network analysis supports subtype and tissue specificity of ELF3's oncogenic role in LUAD. |
Genomic analysis, functional KD in LUAD cells, pan-cancer expression network analysis |
Nature communications |
Medium |
31780666
|
| 2021 |
ELF3 is required for high-level HLA-C expression on extravillous trophoblasts (EVTs). ELF3 and MED1 bind to the proximal HLA-C promoter region (confirmed by ChIP-PCR). ELF3 creates an autoregulatory positive feedback loop by binding its own promoter. The ELF3 gene is regulated by a superenhancer spanning >5 Mb (identified by ATAC-seq and JQ1 sensitivity). The small molecule wrenchnolol blocks ELF3-MED23 interaction, disrupting the feedback loop and downregulating HLA-C. |
ChIP-PCR, siRNA knockdown, ATAC-seq, wrenchnolol treatment, single-cell RNA-seq |
Proceedings of the National Academy of Sciences of the United States of America |
High |
33622787
|
| 2021 |
ELF3 is transcriptionally identified as a direct repressor of lncRNA UBE2CP3 in gastric cancer. ELF3 downregulation (via SNAI2 repression of ELF3) leads to UBE2CP3 upregulation, which promotes cancer progression via a miR-138-5p/ITGA2 ceRNA axis. |
ChIP, luciferase reporter assay, transcriptome sequencing, rescue experiments |
Oncogene |
Medium |
34274947
|
| 2022 |
In esophageal squamous cell carcinoma, ELF3 promotes EMT by binding to the miR-144 promoter to suppress miR-144-3p transcription, thereby de-repressing ZEB1 and ZEB2. The lncRNA LINC00886, acting via SIRT7-mediated H3K18 deacetylation at the ELF3 promoter, suppresses ELF3 expression, placing SIRT7 as an upstream epigenetic writer controlling ELF3. |
ChIP (for ELF3 binding to miR-144 promoter and SIRT7/H3K18ac at ELF3 promoter), luciferase reporter, siRNA, Western blot |
Clinical & experimental metastasis |
Medium |
35616822
|
| 2022 |
ELF3 functions as a transcription factor for IGF1 in epithelial ovarian cancer under hypoxia. ELF3-mediated increase in IGF1 and VEGF secretion promotes endothelial cell proliferation, migration, and tumor angiogenesis. ELF3 silencing under hypoxia significantly attenuated angiogenic activity and tumorigenesis in ex vivo and xenograft models. |
siRNA knockdown, IGF1/VEGF ELISA, endothelial cell proliferation/migration assays, ex vivo and xenograft models |
EMBO reports |
Medium |
35695065
|
| 2022 |
ELF3 deficiency in zebrafish disrupts extracellular matrix (ECM) organization and tissue morphogenesis. Elf3 knockdown (morpholino and CRISPR/Cas9) produces short, bent larvae with notochord, craniofacial cartilage, fin, and neural defects, with disorganized ECM in fin and notochord, and dysregulation of genes encoding ECM proteins and matrix metalloproteinases (MMPs). |
Morpholino antisense knockdown, CRISPR/Cas9 knockdown, in situ hybridization, histology, gene expression analysis |
PloS one |
Medium |
36383615
|
| 2023 |
ELF3 is required for proinflammatory mediator induction by the synergistic action of IL-17A and TNF in synovial fibroblasts. ELF3 expression is induced by the NF-κB co-factor IκBζ (synthesized in response to IL-17A+TNF), and requires NF-κB signaling and C/EBPβ. siRNA depletion of ELF3 attenuates cytokine and MMP induction. Overexpression of ELF3 or IκBζ synergizes with TNF to upregulate CCL8, and ELF3 depletion abrogates CCL8 induction by IκBζ+TNF. |
siRNA knockdown, transient overexpression, signaling inhibitors, qRT-PCR, HEK293 and primary synovial fibroblast experiments |
Rheumatology (Oxford, England) |
Medium |
35792833
|
| 2023 |
ELF3 suppresses gallbladder cancer development by directly repressing epiregulin (EREG) transcription, thereby reducing EGFR/mTORC1 signaling. In vivo (KPCE mouse model), loss of Elf3 leads to upregulation of Ereg and EGFR/mTORC1. ChIP of Elf3-overexpressing organoids confirmed direct ELF3 binding to the Ereg locus. CRISPR deletion of Ereg in KPCE organoids normalized EGFR/mTORC1 activity. |
Autochthonous mouse model (KPCE), organoids, RNA-seq, ChIP, CRISPR/Cas9 deletion, Western blot, allograft models |
The Journal of pathology |
High |
37345534
|
| 2023 |
ELF3 is an oncogenic transcription factor in ASCL1-positive neuroendocrine carcinoma (NEC), regulated by a super-enhancer. Combining CUT&Tag (H3K27ac) and ELF3 knockdown RNA-seq defined the ELF3 transcriptional network, including downstream targets AURKA, CDC25B, CLDN4, ITGB6, and YWHAB. ELF3 depletion leads to poor NEC cell viability. |
ATAC-seq, CUT&Tag (H3K27ac), ELF3 siRNA knockdown + RNA-seq, loss-of-function cell viability assay |
Cancer science |
Medium |
36840413
|
| 2023 |
Retinoic acid signaling (RAR/RXR) and Elf3 upregulate Netrin-1 in disseminated pancreatic ductal adenocarcinoma tumor cells as part of a feedforward metastatic niche mechanism involving hepatic stellate cell activation and retinoic acid secretion. |
In vitro and in vivo metastasis models, gene expression analysis, pathway inhibition |
Cell reports |
Low |
37922311
|
| 2024 |
ELF3 directly binds to the SLC31A1 (copper transporter) promoter and transcriptionally activates it, as demonstrated by luciferase reporter assay and ChIP. ELF3 is upregulated in cisplatin-induced acute kidney injury and positively correlates with SLC31A1 expression; ELF3-driven SLC31A1 induction increases copper uptake, causing mitochondrial dysfunction and cuproptosis. |
Luciferase reporter assay, ChIP, siRNA knockdown, Western blot, in vivo mouse AKI model |
Chemico-biological interactions |
Medium |
38462020
|
| 2024 |
WTAP-mediated N6-methyladenosine (m6A) modification of ELF3 mRNA promotes ELF3 expression in an m6A-dependent manner in human dermal fibroblasts. ELF3 overexpression induces cellular senescence; ELF3 directly binds the IRF8 promoter at the -817 to -804 site to induce IRF8-mediated SASP (senescence-associated secretory phenotype). shWTAP suppresses fibroblast senescence, which is reversed by exogenous ELF3 overexpression. |
Proteomics, m6A sequencing, ChIP (ELF3 binding to IRF8 promoter), siRNA/shRNA, overexpression, in vivo skin aging model |
International journal of biological sciences |
Medium |
38481803
|
| 2014 |
ESE-1 (ELF3) upregulates GP73 expression in hepatocellular carcinoma cells by directly binding to the GP73 promoter, as demonstrated by ChIP. Both ESE-1 and GP73 are co-induced by IL-1β in vitro and in liver inflammation in vivo. |
ChIP, overexpression, siRNA knockdown, qRT-PCR, in vivo liver inflammation model |
Cell & bioscience |
Medium |
25530841
|