| 1999 |
NFATc4 undergoes calcineurin-dependent nuclear translocation in hippocampal neurons in response to electrical activity or K+ depolarization, specifically requiring calcium entry through L-type voltage-gated calcium channels. GSK-3 phosphorylates NFATc4, promoting its nuclear export and antagonizing NFATc4-dependent transcription. NFATc4 controls expression of the inositol 1,4,5-trisphosphate receptor type 1 gene. |
Live imaging of NFATc4-GFP translocation in neurons, pharmacological inhibition of L-type channels, GSK-3 kinase assays, calcineurin inhibitor (cyclosporin A/FK506) treatment, reporter gene assays |
Nature |
High |
10537109
|
| 2002 |
p38 MAP kinase phosphorylates NFATc4 at multiple residues including Ser168 and Ser170 within the NFAT homology domain. Phosphorylation at these sites promotes cytoplasmic retention; Ala168/170 substitutions promote nuclear localization, increase NFAT-mediated transcription, and drive adipocyte differentiation by activating PPARγ2 gene expression via direct NFAT binding elements in the PPARγ2 promoter. |
In vitro kinase assay, site-directed mutagenesis, stable cell line expression, reporter assays, adipocyte differentiation assays |
Molecular and cellular biology |
High |
11997522
|
| 2001 |
NFATc4 contains two distinct transactivation domains (N-terminal and C-terminal) that each interact with separate regions of the coactivator CBP (KIX and CH3 domains respectively). Both transactivation domains are required for CBP-mediated potentiation of NFATc4 transcriptional activity; removal of either domain abolishes CBP potentiation. |
Co-immunoprecipitation, deletion mutagenesis, reporter gene assays |
The Journal of biological chemistry |
High |
11514544
|
| 2005 |
The ERK/RSK signaling pathway is recruited to the NFATc4-DNA transcription complex. RSK phosphorylates NFATc4 at Ser676, potentiating NFATc4 DNA binding by increasing NFAT-DNA association. ERK also targets Ser676 but interacts with NFATc4 at a distinct region from RSK. |
DNA affinity isolation, in-gel kinase assay, in vitro phosphorylation, mutagenesis, reporter assays |
Molecular and cellular biology |
High |
15657420
|
| 2007 |
RSK2 directly interacts with NFATc4 (via N-terminal aa 1-68 and C-terminal aa 416-674 kinase domains of RSK2 binding to aa 261-365 of NFAT3). Upon calcium ionophore stimulation, RSK2 induces nuclear localization of NFATc4 and phosphorylates NFATc4 in vitro (Km = 3.559 µM). RSK2/NFATc4 signaling drives skeletal muscle cell differentiation into multinucleated myotubes. |
Co-immunoprecipitation, in vitro kinase assay, domain mapping, siRNA knockdown, C2C12 differentiation assay |
The Journal of biological chemistry |
High |
17213202
|
| 2008 |
mTOR phosphorylates the gate-keeping residues Ser168/170 of NFATc4, maintaining it in the cytoplasm at rest. ERK5 MAP kinase also mediates rephosphorylation of Ser168/170 and promotes NFATc4 nuclear export; ERK5-mediated phosphorylation primes subsequent phosphorylation by CK1α. Ablation of ERK5 in Erk5−/− cells causes defects in NFATc4 rephosphorylation and nucleocytoplasmic shuttling. |
Phospho-specific monoclonal antibody, kinetic phosphorylation analysis, Erk5−/− cell lines, mTOR inhibition (rapamycin), in vitro kinase assays |
Molecular and cellular biology |
High |
18347059
|
| 2008 |
GSK-3β promotes NFATc4 ubiquitination through Lys48-linked polyubiquitin chains, decreasing NFATc4 protein levels and transcriptional activity. GSK-3β-induced phosphorylation and ubiquitination represses NFATc4-dependent cardiac gene expression. |
Ubiquitination assay, proteasome inhibitor treatment, GSK-3β activation/inhibition, reporter assays, Western blot |
FEBS letters |
Medium |
19026640
|
| 2010 |
Lipin 1 represses NFATc4 transcriptional activity through direct protein-protein interaction and is recruited to NFATc4 target gene promoters in vivo. Catalytically active and inactive lipin 1 both suppress NFATc4, and the suppression may involve recruitment of histone deacetylases. Loss of lipin 1 in adipocytes increases expression of NFATc4 targets including TNFα, resistin, FABP4, and PPARγ. |
Co-immunoprecipitation, chromatin immunoprecipitation (ChIP), reporter assays, siRNA knockdown, lipin 1-deficient (fld) mouse tissue analysis |
Molecular and cellular biology |
High |
20385772
|
| 2012 |
NFATc4 and NFATc3 form complexes that are required redundantly for cardiac development; NFATc4 constitutively active form rescues ventricular myocyte proliferation, compact zone density, trabecular formation, and cardiac mitochondrial complex II enzymatic activity in nfatc3−/−nfatc4−/− double-knockout embryos. |
Genetic double knockout, cardiac-specific transgenic rescue, mitochondrial enzyme activity assays, electron microscopy |
Circulation research |
High |
12750314
|
| 2005 |
NFATc4 (NFAT3) interacts with estrogen receptor alpha and beta in a ligand-independent manner, binding specifically to the AF-1 domain of ERβ. NFATc4 acts as a co-activator of both ERα and ERβ, enhancing their transcriptional activities and increasing NFAT3 binding of ERα to the estrogen-responsive element. |
Yeast two-hybrid, co-immunoprecipitation in mammalian cells, in vitro binding assay, ChIP, reporter assays, siRNA knockdown |
The Journal of biological chemistry |
High |
16219765
|
| 2011 |
FoxP1 forms a complex with Nfat3 (NFATc4) in cardiomyocytes, visualized by bimolecular fluorescence complementation (BiFC). Calcineurin activation induces FoxP1-Nfat3 complex formation. FoxP1 represses Nfat3-activated hypertrophy-associated genes (Myh7, Rcan1, Cx43, Anf, Bnp) and activates genes maintaining normal heart function (Myh6, p57Kip2). Co-occupancy of FoxP1 and Nfat3 at hypertrophy gene promoters is demonstrated in vivo. |
BiFC, amino acid substitution mutagenesis at interaction interface, ChIP in neonatal and adult heart tissue, reporter assays, cardiomyocyte hypertrophy phenotyping |
Molecular and cellular biology |
High |
21606195
|
| 2007 |
IL-18 induces ERK1/2-dependent phosphorylation of NFATc4 at Ser676, promoting NFATc4 nuclear translocation and in vivo DNA binding to the adiponectin promoter NFAT binding site, thereby suppressing adiponectin transcription in 3T3-L1 adipocytes. |
Reporter assay with NFAT site mutation, in vivo DNA binding assay, ERK1/2 inhibitors (U0126, PD98059), ERK1/2 siRNA, NFATc4 siRNA knockdown |
The Journal of biological chemistry |
High |
18086672
|
| 2004 |
NFATc4 (Nishéd-binding partner) forms a ternary complex with the transcription factor Nishéd and co-activator p300 at an intronic regulatory element (IRE) of the MLC-2v gene. Angiotensin II stimulation enhances this complex formation and MLC-2v transcription; losartan (AT1 antagonist) abolishes it. |
Gel mobility shift assay, co-immunoprecipitation, reporter assays, pharmacological antagonism |
The Journal of biological chemistry |
Medium |
15272022
|
| 2009 |
NFATc4 is a transcriptional repressor of GAP-43 in neurons. Prior to neurotrophin activation, endogenous NFATc4 occupies the GAP-43 promoter in PC-12 cells, cultured neurons, and mouse brain. Overexpression of NFATc4 represses GAP-43 activation by neurotrophin signaling, and NFATc4 is required to repress GAP-43 and other pro-axon outgrowth genes during specific developmental windows. |
ChIP in vitro and in vivo, reporter assays, overexpression, promoter in silico analysis validated experimentally |
The Journal of biological chemistry |
High |
19443652
|
| 2009 |
NFATc4 knockdown induces apoptosis in cortical neurons even under survival conditions. NFATc4 mediates NMDAR-dependent neuronal survival by regulating transcription from BDNF promoter IV; NFATc4 inhibition reduces BDNF expression, and exogenous BDNF rescues the pro-apoptotic effects of NFATc4 inhibition. |
RNAi knockdown, dominant-negative NFAT expression, reporter assays with BDNF promoter IV, neuronal apoptosis assays |
The Journal of neuroscience |
High |
19955386
|
| 2012 |
NFATc4 calcineurin-dependent activity is specifically required for survival of adult-born hippocampal neurons in response to BDNF signaling. Cyclosporin A injection or TrkB-Fc (BDNF scavenger) reduces adult-born neuron survival in WT but not NFATc4−/− mice. Loss of NFATc4 leads to selective defects in LTP and spatial memory encoding. |
NFATc4 knockout mice, stereotaxic drug delivery, calcineurin inhibition, TrkB-Fc scavenger, hippocampal neurogenesis quantification, LTP electrophysiology, spatial memory behavioral testing |
Proceedings of the National Academy of Sciences |
High |
22586092
|
| 2012 |
NFATc4 activation properties in neurons differ from NFATc3: NFATc4 requires prolonged (1-3 h) depolarization for nuclear translocation whereas NFATc3 translocates rapidly. The serine-proline repeat region of NFATc4 is critical for its activation magnitude. GSK3β suppression is specifically required for NFATc4 nuclear import upon depolarization. |
NFATc3/NFATc4 chimera analysis, siRNA knockdown, GSK3β inhibition, live imaging of nuclear translocation in hippocampal and DRG neurons, p38 and mTOR inhibition |
The Journal of biological chemistry |
High |
22977251
|
| 2013 |
NFAT3 directly binds to specific DNA sequences within the BACE1 promoter and activates BACE1 transcription; NFATc4 overexpression increases BACE1 promoter activity, BACE1 protein expression, and Aβ production. |
ChIP, luciferase reporter assays, overexpression, siRNA knockdown |
Neurochemical research |
Medium |
25663301
|
| 2013 |
NFAT3 directly regulates miR-140 transcription in OA chondrocytes by binding to the miR-140 regulatory sequence, acting as a transcriptional activator. TGF-β/SMAD3 acts as a repressor. TGF-β interferes with NFAT3 translocation, thereby suppressing miR-140 expression. These roles were established by mutagenesis, ChIP, and siRNA knockdown. |
ChIP, promoter mutagenesis, siRNA knockdown, immunocytochemistry, reporter assays |
Arthritis research & therapy |
High |
24257415
|
| 2014 |
NFATc4 drives hippocampal progenitor neurogenesis via the calcineurin/NFATc4 axis. NFATc4 directly regulates GABRA2 and GABRA4 subunit expression by binding to specific promoter responsive elements. GABAAR signaling promotes neurogenesis through NFATc4, and NFATc4-dependent increase in neurogenesis is required for suppression of anxiety response. |
Genome-wide ChIP, luciferase reporter assays, calcineurin inhibition (cyclosporin A), NFATc4−/− mice, behavioral anxiety testing, pharmacological GABAAR modulation |
The Journal of neuroscience |
High |
24948817
|
| 2016 |
CDK3 directly interacts with NFATc4 (by mammalian two-hybrid assay) and phosphorylates NFATc4 at Ser259, enhancing its transactivation activity. Mutation of Ser259 to Ala reduces NFATc4-dependent colony formation and xenograft tumor growth. |
Mammalian two-hybrid assay, in vitro phosphorylation/kinase assay, site-directed mutagenesis (S259A), soft agar colony formation, xenograft mouse model |
Oncogene |
High |
27893713
|
| 2016 |
NFATc4 is recruited to the Kv4.2 gene promoter and is required for neuritin-induced Kv4.2 transcriptional upregulation. The Ca2+/calcineurin/NFATc4 axis mediates neuritin-induced potentiation of IA densities in cerebellar granule neurons; these effects are absent in Nfatc4−/− but not Nfatc2−/− mice. |
ChIP, luciferase reporter assays, calcineurin inhibition, Nfatc4−/− mice, electrophysiology, AAV-mediated neuritin overexpression |
The Journal of biological chemistry |
High |
27307045
|
| 2018 |
BDNF sequesters NFATc4 in extranuclear Golgi compartments, thereby derepressing an NFI-dependent temporal gene program in cerebellar granule cells. This extranuclear sequestration reveals an autoregulatory loop as Bdnf itself is part of the NFI target program. |
Subcellular fractionation/localization, Golgi co-localization, gene expression analysis, NFATc4 loss-of-function |
Molecular biology of the cell |
Medium |
29467254
|
| 2019 |
SIRT6, via its deacetylase activity, suppresses NFATc4 expression and activation in cardiomyocytes; SIRT6 interacts with NFATc4, likely facilitating its deacetylation. SIRT6 overexpression elevates NFATc4 phosphorylation, prevents nuclear accumulation, and suppresses transcriptional activity, while deacetylase-dead SIRT6 (H133Y mutant) has no effect. |
Co-immunoprecipitation, adenoviral overexpression, deacetylase-dead mutant (H133Y), Western blot, immunofluorescence, siRNA knockdown, reporter assays |
Frontiers in pharmacology |
Medium |
30670969
|
| 2019 |
RCAN1.4 overexpression alleviates liver fibrosis through inhibition of calcineurin/NFAT3 (NFATc4) signaling. Downregulation of RCAN1.4 by DNMT1- and DNMT3b-mediated DNA methylation of its promoter relieves inhibition of calcineurin, activating NFATc4 and promoting HSC activation and fibrogenesis. |
Bisulfite sequencing PCR, ChIP for DNMT1/DNMT3b, rAAV8-mediated RCAN1.4 overexpression, CaN activity assays, siRNA knockdown, CCl4 mouse fibrosis model |
Theranostics |
High |
31285763
|
| 2020 |
NFATc4 directly binds to PPARα in the nucleus and negatively regulates its transcriptional activity, impairing hepatic fatty acid oxidation and increasing lipid deposition in NASH. NFATc4 activation also increases osteopontin (OPN) secretion from hepatocytes, driving macrophage-mediated inflammation and hepatic stellate cell fibrosis via paracrine signaling. |
NFATc4 knockdown (gain/loss of function), co-immunoprecipitation (NFATc4-PPARα), reporter assays, OPN secretion measurement, paracrine co-culture experiments, NASH mouse model |
Journal of hepatology |
High |
32717288
|
| 2020 |
NULP1 directly interacts with NFATc4 via its topologically associating domain (TAD) through the C-terminal region of NULP1, suppressing NFATc4 transcriptional activity. NULP1 knockout exacerbates cardiac hypertrophy, rescued by NFAT pathway inhibition with VIVIT peptides. |
Co-immunoprecipitation (domain mapping), NULP1 knockout/transgenic mice, VIVIT peptide treatment, aortic banding model, reporter assays |
Journal of the American Heart Association |
High |
32805187
|
| 2020 |
NFATc4 nuclear translocation and pathway activation drives quiescence (G0 arrest) and chemotherapy resistance in ovarian cancer cells, in part via downregulation of MYC. Cisplatin treatment triggers NFATc4 nuclear translocation; inhibition of NFATc4 increases chemotherapy response both in vitro and in vivo. |
NFATc4 overexpression/inhibition, flow cytometry for cell cycle, cisplatin response assays, in vivo xenograft, MYC expression analysis |
JCI insight |
Medium |
32182216
|
| 2021 |
SIRT2-mediated deacetylation of NFATc4 inhibits its nuclear translocation. In ethanol-exposed hepatocytes, PTS (pterostilbene) rescues SIRT2 expression, which deacetylates NFATc4 and prevents its nuclear translocation; NFATc4 overexpression impairs the ability of PTS to suppress RIPK3 expression and necroptosis. |
NFATc4 overexpression/knockdown, SIRT2 siRNA knockdown, immunofluorescence for NFATc4 nuclear localization, Western blot for acetylation status, RIPK3 expression |
Toxicology |
Medium |
34474091
|
| 2021 |
NFATc4 triggers hepatocyte senescence via repression of PPARγ in ethanol-treated hepatocytes. NFATc4 knockdown protected against ethanol-induced senescence markers (SA-β-gal, p16, p21, HMGA1, γH2AX), and PPARγ deficiency abrogated these protective effects. |
NFATc4 siRNA knockdown, PPARγ knockdown, SA-β-gal staining, Western blot for senescence markers, in vivo mouse alcoholic liver model |
Toxicology letters |
Medium |
34192554
|
| 2022 |
PPP3CA (calcineurin catalytic subunit) and CAMTA1 competitively bind to NFATc4; CAMTA1 knockdown promotes PPP3CA-mediated dephosphorylation of NFATc4, activating it and promoting colorectal cancer chemoresistance. NFATc4 knockdown reverses chemoresistance caused by CAMTA1 knockdown. |
Co-immunoprecipitation, NFATc4 knockdown, CAMTA1 overexpression/knockdown, xenograft mouse model, oxaliplatin resistance assays |
Cell death discovery |
Medium |
35332122
|
| 2023 |
Calcineurin (protein phosphatase 3) dephosphorylates NFATc4 in adrenal zona glomerulosa cells. Phosphoproteomics identified NFATc4 as a calcineurin substrate. ZG-specific deletion of the calcineurin regulatory subunit CnB1 reduces Cyp11b2 expression. NFATc4 directly binds the CYP11B2 (aldosterone synthase) promoter via ChIP, and constitutively active NFATc4 increases CYP11B2 expression; NFATc4 deletion impairs K+-dependent aldosterone synthesis. |
Phosphoproteomics, ZG-specific CnB1 knockout mice, NFATc4 knockout, constitutively active NFATc4 expression, ChIP for CYP11B2 promoter, aldosterone secretion assays |
JCI insight |
High |
37310791
|
| 2024 |
Mettl1-catalyzed m7G modification of SRSF9 mRNA increases SRSF9 expression, which then promotes alternative splicing and stabilization of NFATc4, thereby activating cardiac hypertrophy. SRSF9 knockdown protects against TAC- or Mettl1-induced cardiac hypertrophy. YY1 acts as a transcription factor for Mettl1 during cardiac hypertrophy. |
Mettl1 knockout/overexpression, SRSF9 knockdown, alternative splicing analysis, TAC and Ang II mouse models, m7G modification profiling |
Advanced science |
Medium |
38810124
|
| 2011 |
PPARα activation by fenofibrate enhances association of PPARα with NFATc4 in the nucleus, competing with and decreasing NFATc4 interaction with GATA-4, thereby reducing transactivation of the BNP gene and inhibiting cardiomyocyte hypertrophy. |
EMSA, co-immunoprecipitation, PPARα siRNA knockdown, reporter assays, confocal microscopy, primary neonatal rat cardiomyocytes |
Archives of biochemistry and biophysics |
Medium |
22198280
|
| 2016 |
NFATc4 interacts with myocardin to synergistically activate LTCC α1C (L-type Ca2+ channel) gene expression in ET-1-induced cardiomyocyte hypertrophy. NFATc4 also directly activates myocardin expression by binding to its promoter. |
Co-immunoprecipitation, ChIP, reporter assays, NFATc4 and myocardin overexpression/knockdown |
Life sciences |
Medium |
27155398
|
| 2017 |
TBX5 transcription factor binds to the NFAT3 promoter and is required for NFAT3 expression; mutation of the TBX5 binding site in the NFAT3 promoter diminishes promoter activity, while TBX5 overexpression enhances NFAT3 expression. TBX5-mediated NFAT3 expression suppresses IL-2 transcription, establishing TBX5 as a transcriptional regulator of NFAT3 in T cells. NFAT3 suppresses IL-2 promoter activity through its N-terminal transactivation domain, Ca2+-regulatory domain, and DNA-binding domain. |
Promoter mutagenesis, reporter assays, TBX5 overexpression in CD4+ T cells, siRNA knockdown, chromatin accessibility analysis |
Journal of immunology |
Medium |
29180489
|
| 2019 |
Orai1-dependent Ca2+ entry activates calcineurin-NFATc4 signaling specifically in endothelial cells; among all NFAT isoforms, TNFα exclusively triggers NFATc4 nuclear accumulation in HUVECs. Orai1 knockdown prevents TNFα-induced NFATc4 nuclear translocation and reduces ICAM-1 and VCAM-1 expression. |
Orai1 knockdown/overexpression, NFATc4 overexpression, calcineurin inhibition, nuclear translocation imaging, ICAM-1/VCAM-1 expression, in vivo mouse aorta |
Biochemical and biophysical research communications |
Medium |
29225169
|
| 2019 |
NFATc4 deficiency in cochlear hair cells attenuates ototoxic drug-induced apoptosis. NFATc4 is activated and translocates from cytoplasm to nucleus in response to ototoxic drugs, followed by increased Tnf expression and downstream apoptosis pathway activation. Nfatc4-deficient hair cells show reduced TNF-mediated apoptosis. |
Nfatc4−/− mice, ototoxic drug treatment, immunofluorescence for NFATc4 localization, Western blot for Tnf and downstream apoptosis markers, hearing function tests |
Frontiers in immunology |
Medium |
31379853
|
| 2024 |
NFATc4 knockout (but not NFATc3 knockout) increases retinal ganglion cell (RGC) survival, improves retinal function, and delays axonal degeneration after optic nerve crush. NFATc4 up-regulation after injury immunolocalizes to the ganglion cell layer. Lentiviral re-introduction of NFATc4 into NFATc4−/− retinas reverses the pro-survival effect, confirming NFATc4-dependent pro-apoptotic signaling (involving caspase-3). |
NFATc4−/− and NFATc3−/− mice, optic nerve crush model, lentiviral NFATc4 delivery, microarray, immunostaining for cleaved caspase-3, retinal function assessment |
Molecular neurobiology |
High |
38639863
|
| 2010 |
miR-133a directly targets two conserved base-pairing sites in the NFATc4 3'-UTR, negatively regulating NFATc4 expression. Mutation of both sites in the NFATc4 3'-UTR completely blocks miR-133a-mediated repression. miR-133a reduces endogenous NFATc4 protein and attenuates hypertrophic stimulus-induced NFATc4 upregulation. |
Luciferase reporter with 3'-UTR, 3'-UTR site-directed mutagenesis, miR-133a gain-of-function, miR-133a inhibitor treatment, Western blot |
American journal of physiology. Heart and circulatory physiology |
High |
20173049
|