| 1994 |
B94/TNFAIP2 is a primary response gene induced by TNF-α in endothelial cells; the mouse homologue is expressed in hematopoietic tissues and the sperm acrosome, with a truncated testis-specific transcript arising from an alternate polyadenylation signal within the open reading frame. Immunostaining localized B94 protein to the acrosomal compartment of mature sperm. |
In situ hybridization, Northern blot, affinity-purified polyclonal antiserum immunostaining, mouse chromosomal mapping |
The Journal of biological chemistry |
Medium |
8106408
|
| 2000 |
TNFAIP2 (B94) is a retinoic acid target gene in acute promyelocytic leukemia cells expressing PML-RARα; induction is rapid (within 1 h), does not require new protein synthesis, is blocked by actinomycin D, and is dependent on the PML coiled-coil domain of PML-RARα, indicating direct transcriptional activation. |
cDNA microarray, quantitative RT-PCR, actinomycin D and cycloheximide inhibition assays in TF1-PR cells |
Cancer research |
Medium |
10766166
|
| 2010 |
Knockdown of TNFAIP2 by siRNA dramatically reduces migration and invasion of nasopharyngeal carcinoma HK1 cells, establishing a direct role for TNFAIP2 in promoting cell motility. |
siRNA knockdown, transwell migration and invasion assays |
Modern pathology |
Medium |
21057457
|
| 2013 |
The EBV oncoprotein LMP1 transcriptionally induces TNFAIP2 expression through its CTAR2 domain via NF-κB; a specific NF-κB binding site was identified at −3,869 to −3,860 bp of the TNFAIP2 promoter. TNFAIP2 associates with actin (co-immunoprecipitation), participates in actin-based membrane protrusion formation, and promotes LMP1-induced cell motility. |
Quantitative RT-PCR, Western blot, luciferase reporter assay, NF-κB inhibition, p65 siRNA knockdown, co-immunoprecipitation, immunofluorescence microscopy, transwell migration assay |
Oncogene |
High |
23975427
|
| 2015 |
KLF5 directly binds the TNFAIP2 gene promoter and activates its transcription; TNFAIP2 in turn interacts with the small GTPases Rac1 and Cdc42, increasing their activities to alter the actin cytoskeleton and cell morphology, thereby promoting breast cancer cell proliferation, migration, and invasion. |
ChIP assay, luciferase reporter assay, co-immunoprecipitation, GTPase activity assays (Rac1/Cdc42 pull-down), siRNA knockdown, cell migration/invasion assays |
Oncogene |
High |
26189798
|
| 2015 |
TNFAIP2 inhibits NF-κB activity and downstream IL-8 production, acting as an autoinhibitor of the early TNFα response. A genetic variant (rs8126) that increases TNFAIP2 expression correlates with decreased IL-8 and worse survival in septic shock patients. |
In vitro microarray gene expression, NF-κB reporter assay, cytokine measurement (IL-8), genetic association study |
Journal of innate immunity |
Medium |
26347487
|
| 2016 |
TNFAIP2 expression is induced by Legionella pneumophila infection in macrophages via NF-κB-dependent transcription (histone H4 acetylation at the TNFAIP2 promoter detected by ChIP-seq); knockdown of TNFAIP2 reduces intracellular L. pneumophila replication, indicating a pro-bacterial role. |
ChIP-seq (H4 acetylation), qRT-PCR, Western blot, TNFAIP2 siRNA knockdown with intracellular bacterial replication assay |
The Journal of infectious diseases |
Medium |
27130431
|
| 2017 |
Knockdown of TNFAIP2 in esophageal squamous cell carcinoma cells decreases expression of β-catenin downstream targets (c-Myc, cyclin D1, MMP-7, Snail) and upregulates E-cadherin and p-GSK-3β, placing TNFAIP2 as a positive regulator of the Wnt/β-catenin signaling pathway. |
Lentivirus-mediated RNAi knockdown, Western blot, qRT-PCR, cell proliferation/migration/invasion assays |
Oncology reports |
Medium |
28393234
|
| 2019 |
TNFAIP2 translation is controlled by upstream open reading frames (uORFs) in its transcript leader sequence that suppress cap-dependent translation in monocytes; during monocyte-to-macrophage differentiation, these uORFs are inactivated, enabling a large increase in TNFAIP2 protein expression. |
Reporter assays (uORF mutagenesis), Western blot, polysome profiling, monocyte differentiation model |
Cellular and molecular life sciences |
High |
31392347
|
| 2019 |
TNFAIP2 knockdown in platinum-resistant urothelial carcinoma cells upregulates E-cadherin and downregulates TWIST1, reducing motility; TNFAIP2 overexpression has the opposite effect. Global gene expression analysis identified MTDH as a positive regulator of TNFAIP2-driven EMT. |
siRNA knockdown, lentiviral overexpression, microarray global gene expression analysis, Western blot, migration/invasion assays |
Laboratory investigation |
Medium |
31263157
|
| 2020 |
Tnfaip2 acts as an inhibitor of cellular reprogramming and is required for embryonic stem cell (ESC) differentiation; Tnfaip2-deficient ESCs fail to induce triacylglycerol (TAG) synthesis and lipid droplet formation coincident with reduced vimentin expression. Epistasis analysis places Tnfaip2 upstream of vimentin in suppressing reprogramming. Palmitic acid supplementation rescues differentiation defects in Tnfaip2-null ESCs. |
Tnfaip2 knockout ESCs, reprogramming assays, lipidomic analysis (TAG/lipid droplets), vimentin expression analysis, genetic epistasis, palmitic acid rescue |
EMBO reports |
High |
33300287
|
| 2021 |
STAT1 (phosphorylated) binds the enhancer loci of TNFAIP2, recruits the acetyltransferase EP300, and increases H3K27ac enrichment, thereby transcriptionally upregulating TNFAIP2 in the context of inflammatory bowel disease. |
ChIP-PCR, co-immunoprecipitation (STAT1–EP300 interaction), RNA-seq, EP300 inhibitor in DSS colitis mouse model |
Clinical epigenetics |
Medium |
34112215
|
| 2022 |
TNFAIP2 is required for tunneling nanotube (TNT) formation in podocytes; in diabetic nephropathy, the TNFAIP2-TNT system allows autophagosome and lysosome exchange between podocytes, alleviating AGE-induced lysosomal dysfunction and apoptosis. Tnfaip2 deletion in mice exacerbates albuminuria, podocyte injury, and autophagic flux blockade. |
Tnfaip2 knockout mice (STZ-induced DN model), live-cell imaging of organelle transfer, lysosome/autophagosome functional assays, Tnfaip2 overexpression |
Autophagy |
High |
35659195
|
| 2023 |
TNFAIP2 contains a DLG motif that directly binds the Kelch domain of KEAP1, competing with NRF2, thereby preventing NRF2 ubiquitin-proteasomal degradation. This leads to NRF2 accumulation, suppression of ROS-mediated JNK phosphorylation, and cisplatin resistance in head and neck squamous cell carcinoma. |
Co-immunoprecipitation coupled with mass spectrometry (Co-IP/MS), mutagenesis of DLG motif, Western blot, flow cytometry (ROS, apoptosis), xenograft and 4NQO mouse models, siRNA knockdown |
Journal of experimental & clinical cancer research |
High |
37525222
|
| 2023 |
TNFAIP2 interacts with IQGAP1 and Integrin β4 (co-immunoprecipitation); Integrin β4 activates RAC1 through the TNFAIP2–IQGAP1 axis, conferring DNA damage-related drug resistance in triple-negative breast cancer. |
Co-immunoprecipitation, RAC1 activity assay, siRNA knockdown, drug resistance assays |
eLife |
High |
37787041
|
| 2024 |
TNFAIP2 promotes angiogenesis in triple-negative breast cancer by activating a Rac1→ERK→AP-1 (c-Jun/Fra1) signaling cascade; AP-1 directly binds the HIF1α gene promoter to enhance HIF1α transcription, which drives VEGF-dependent angiogenesis. |
Chromatin immunoprecipitation (AP-1 binding to HIF1α promoter), luciferase reporter assay, ERK inhibitor (U0126/trametinib) treatment, VEGFR inhibitor (Apatinib), RAC1 activity assay, xenograft mouse model |
Cell death & disease |
High |
39532855
|
| 2025 |
TNFAIP2 binds phosphatidylinositol 4,5-bisphosphate (PIP2) and promotes CSF1R aggregate/cluster formation in macrophages via PIP2, RalA, and the exocyst complex, enabling efficient CSF1R dimerization and activation in response to CSF-1. Additionally, TNFAIP2 enhances trafficking of CSF1R to the cell surface through the same PIP2–RalA–exocyst pathway. |
Inhibition/knockdown of TNFAIP2, 293-cell reconstitution of CSF1R clustering, PIP2-binding motif mutagenesis, PIP2 depletion, co-immunoprecipitation, CSF1R surface trafficking assay, RalA and exocyst complex functional experiments |
Life science alliance / Journal of leukocyte biology |
High |
39939179 41158107
|
| 2025 |
TGF-β induces acetylation of KLF5, and acetylated KLF5 directly binds the TNFAIP2 promoter to drive TNFAIP2 transcription and EMT in nasopharyngeal carcinoma; the pro-invasive effects of acetylated KLF5 depend on TNFAIP2. |
KLF5 acetylation analysis, ChIP assay (KLF5 binding to TNFAIP2 promoter), TNFAIP2 rescue experiments, in vivo NPC mouse model with TGF-β treatment |
Experimental cell research |
Medium |
40054652
|
| 2025 |
TNFAIP2 interacts with KEAP1 and prevents IKKβ ubiquitination at K63, protecting IKKβ from proteasomal degradation and sustaining NF-κB signaling to facilitate EMT and lymphangiogenesis in oral squamous cell carcinoma. |
Co-immunoprecipitation, conditional Tnfaip2 knockout mouse (4NQO-induced OSCC model), Western blot (ubiquitination), gene set enrichment analysis, siRNA delivery in vivo |
Cell communication and signaling |
Medium |
39948570
|