| 2001 |
GILZ directly interacts with c-Fos and c-Jun in vitro through its N-terminal 60-amino acid region, inhibiting AP-1 DNA binding; homodimerization of GILZ requires the leucine zipper domain. GILZ expression in Jurkat T cells blocks AP-1-driven, IL-2 promoter-driven, and FasL promoter-driven reporter constructs, and inhibits Egr-2/Egr-3-mediated FasL induction. |
Recombinant protein in vitro interaction assays, transient transfection reporter assays, domain-deletion mutants, anti-CD3-stimulated normal T cells |
The Journal of biological chemistry |
High |
11397794
|
| 2002 |
In THP-1 macrophage-like cells treated with glucocorticoids or IL-10, GILZ associates with the p65 subunit of NF-κB, and GILZ transfection inhibits NF-κB function and suppresses expression of CD80, CD86, CCL5, CCL3, and TLR2. |
Co-immunoprecipitation in THP-1 cells, transfection of GILZ gene, flow cytometry, RT-PCR |
Blood |
Medium |
12393603
|
| 2004 |
FoxO3 binding to Forkhead-responsive elements in the GILZ promoter is necessary for induction of GILZ expression upon IL-2 withdrawal. GILZ overexpression protects T cells from IL-2 withdrawal-induced apoptosis and inhibits Bim expression, while GILZ silencing accelerates cell death and enhances Bim. GILZ also inhibits FoxO3 transcriptional activity, creating a negative feedback loop. |
GILZ promoter characterization, FHRE mutagenesis, GILZ overexpression and siRNA knockdown in CTLL-2 cells, apoptosis assays, Western blot for Bim |
Blood |
High |
15031210
|
| 2003 |
GILZ binds directly to tandem CCAAT/enhancer-binding protein (C/EBP) binding sites in the PPARγ2 promoter and acts as a sequence-specific transcriptional repressor, inhibiting PPARγ2 transcription and blocking glucocorticoid-induced adipocyte differentiation. |
Promoter binding assays, ectopic GILZ expression in mesenchymal cells, adipogenic differentiation assays, marker gene expression analysis |
EMBO reports |
High |
12671681
|
| 2006 |
GILZ interacts directly with Ras in vitro and in vivo (co-immunoprecipitation and colocalization in primary T cells); interaction is mediated through the TSC box domain. GILZ forms a trimeric complex with Ras and Raf. These interactions reduce ERK1/2, AKT/PKB phosphorylation, Rb phosphorylation, and cyclin D1 expression, inhibiting Ras/Raf-dependent proliferation and NIH-3T3 transformation. GILZ silencing abrogates dexamethasone antiproliferative effects. |
In vitro binding assays, co-immunoprecipitation, colocalization imaging, GILZ domain mutants, siRNA knockdown, cell proliferation/transformation assays |
The Journal of clinical investigation |
High |
17492054
|
| 2006 |
GILZ homo-dimerization via the leucine zipper domain and the C-terminal PER domain (particularly residues 121–123) are both required for GILZ/p65 NF-κB interaction and inhibition of NF-κB transcriptional activity and IL-2 synthesis, as shown by in vitro and in vivo co-immunoprecipitation with multiple GILZ mutants. |
In vitro and in vivo co-immunoprecipitation, GILZ domain deletion/point mutants, NF-κB transcriptional reporter assays |
Nucleic acids research |
High |
17169985
|
| 2007 |
GILZ and its isoform L-GILZ are expressed in skeletal muscle and C2C12 myoblasts; GILZ/L-GILZ overexpression inhibits myotube formation and reduces MyoD function and myogenin expression by binding and regulating MyoD/HDAC1 transcriptional activity. GILZ/L-GILZ silencing dampens glucocorticoid anti-myogenic effects. |
C2C12 myoblast differentiation assays, GILZ/L-GILZ overexpression and siRNA knockdown, co-immunoprecipitation of GILZ with MyoD/HDAC1, gene expression analysis |
The Journal of biological chemistry |
Medium |
20124407
|
| 2007 |
GILZ overexpression in mouse mesenchymal stem cells increases alkaline phosphatase activity, mineralized nodule formation, and expression of Runx2/Cbfa1, alkaline phosphatase, type I collagen, and osteocalcin, while reducing PPARγ2 and C/EBPα. Gilz knockdown reduces MSC osteogenic differentiation capacity, indicating GILZ shifts MSC commitment from adipogenic to osteogenic. |
GILZ overexpression and siRNA knockdown in mouse MSCs, alkaline phosphatase activity assay, mineralized nodule formation, RT-PCR for lineage markers |
The Journal of biological chemistry |
Medium |
18084007
|
| 2008 |
GILZ inhibits inflammatory cytokine (TNF-α and IL-1β)-induced COX-2 mRNA and protein expression in bone marrow mesenchymal stem cells by blocking NF-κB nuclear translocation and NF-κB-mediated COX-2 promoter activity. Knockdown of GILZ by shRNA reduces glucocorticoid inhibition of cytokine-induced COX-2. |
Retroviral GILZ overexpression, shRNA knockdown, COX-2 reporter assay, NF-κB nuclear translocation (fractionation/immunofluorescence), RT-PCR, Western blot |
Journal of cellular biochemistry |
Medium |
17910039
|
| 2009 |
GILZ promotes nuclear exclusion of FOXO3 in a Crm1-dependent manner: GILZ expression (exclusively cytoplasmic) causes FOXO3 to relocalize from nucleus to cytoplasm, suppressing FOXO1/3/4 transcriptional activity and downregulating FOXO targets p27KIP1 and Bim. GILZ does not physically interact with FOXO3 and does not hinder FOXO3 DNA-binding directly. |
Fluorescence microscopy, Crm1 inhibitor (leptomycin B) treatment, FOXO-responsive reporter assays in HL-60 and CTLL-2 cells, subcellular fractionation |
The Journal of biological chemistry |
Medium |
20018851
|
| 2010 |
Glucocorticoid-induced caspase-8 activation protects GILZ from proteasomal degradation and induces GILZ binding to SUMO-1; GILZ contains a SUMO-binding site, binds the SUMO E2-conjugating enzyme Ubc9 in vitro and in vivo, and co-immunoprecipitates with SUMO-1 in a caspase-8-dependent manner in thymocytes. |
In vitro binding assays (GILZ–Ubc9, GILZ–SUMO-1), co-immunoprecipitation, caspase-8 inhibition, proteasome inhibition, caspase-8-deficient thymocytes |
Cell death and differentiation |
Medium |
20671745
|
| 2011 |
GILZ binds to and inhibits mTORC2 (but not mTORC1) in mouse and human BCR-ABL+ cells, suppressing Ser473-AKT phosphorylation and activating FoxO3a-mediated Bim transcription, thereby inducing apoptosis and reducing imatinib/dasatinib resistance. |
Co-immunoprecipitation of GILZ with mTORC2 components, AKT phosphorylation (Western blot), FoxO3a reporter assays, apoptosis assays, CD34+ CML stem cells |
Oncogene |
Medium |
21804606
|
| 2011 |
L-GILZ (long isoform of GILZ) is highly expressed in spermatogonia and primary spermatocytes; Gilz knockout mice develop complete loss of germ cells and male sterility. GILZ deficiency leads to increased ERK and Akt phosphorylation (Ras pathway hyperactivation) and aberrant spermatogonial differentiation. |
Gilz knockout mice, immunohistochemistry, Western blot for ERK/Akt phosphorylation, apoptosis assays, spermatogenesis phenotyping |
The Journal of biological chemistry |
High |
22110132
|
| 2012 |
Estradiol (E2) antagonizes glucocorticoid-induced GILZ gene expression through the estrogen receptor (ERα and ERβ): both GR and ERα are recruited to GRE-containing regions of the GILZ promoter, and E2 treatment decreases GR binding there. ER antagonist ICI 182,780 and ERα siRNA block E2-mediated GILZ repression. |
Chromatin immunoprecipitation (ChIP) for GR and ERα at GILZ promoter, siRNA knockdown of ERα, ER antagonist treatment, nascent RNA assay, in vivo mouse uterus model |
Endocrinology |
High |
23183181
|
| 2013 |
GILZ overexpression in HUVECs inhibits TNF-induced NF-κB p65 DNA binding (without affecting p65 nuclear translocation), and suppresses p38, ERK, and JNK MAPK activation while increasing MKP-1. This reduces leukocyte rolling, adhesion, and transmigration, and decreases E-selectin, ICAM-1, CCL2, CXCL8, and IL-6. |
Transient transfection of GILZ in HUVECs, NF-κB reporter/DNA binding assays, p65 nuclear translocation imaging, MAPK phosphorylation (Western blot), leukocyte adhesion assays, MKP-1 quantification |
Journal of immunology |
Medium |
23729444
|
| 2013 |
DC-SCRIPT coexists with GR in protein complexes and functions as a corepressor of GR-mediated transcription; DC-SCRIPT knockdown enhances GR-dependent upregulation of GILZ mRNA in dendritic cells. |
Co-immunoprecipitation of DC-SCRIPT with GR, DC-SCRIPT knockdown (siRNA), GILZ mRNA quantification in monocyte-derived DCs |
Journal of immunology |
Medium |
23440419
|
| 2013 |
GILZ inhibits dexamethasone-suppressed airway epithelial repair by suppressing Raf-1, MEK1/2, and ERK1/2 phosphorylation (MAPK-ERK pathway), thereby inhibiting proliferation and migration. Silencing GILZ with siRNA reverses DEX-mediated inhibition of these pathway components and restores cell repair. |
siRNA knockdown, Western blot for pRaf/pMEK/pERK, wound-healing/migration assays, MTT proliferation assay, CFSE labeling |
PloS one |
Medium |
23573276
|
| 2014 |
L-GILZ (long isoform) binds preferentially to MDM2 (in the presence of both p53 and MDM2) and interferes with p53/MDM2 complex formation, stabilizing p53 by decreasing its ubiquitination and increasing MDM2 ubiquitination, leading to p21 and PUMA induction and tumor growth suppression. |
Co-immunoprecipitation of L-GILZ with p53 and MDM2, ubiquitination assays, p53-proficient vs -deficient cell lines, xenograft tumor growth, siRNA knockdown of L-GILZ |
Cell death and differentiation |
High |
25168242
|
| 2014 |
GILZ promotes TGF-β signaling by binding to Smad2 and promoting its phosphorylation, thereby activating FoxP3 expression and enabling GCs to cooperate with TGF-β in peripheral regulatory T cell (pTreg) generation. GILZ-deficient mice show impaired pTreg generation and increased intestinal inflammation. |
GILZ overexpression transgenic mice, Gilz knockout mice, co-immunoprecipitation of GILZ with Smad2, Smad2 phosphorylation assay, FoxP3 reporter, intestinal inflammation model |
Cell reports |
High |
24703841
|
| 2014 |
GILZ physically interacts with C/EBPs and disrupts C/EBP-mediated PPARγ gene transcription, enhancing osteogenic while suppressing adipogenic differentiation. Transgenic mice expressing GILZ under a collagen promoter show increased bone mass, bone formation rate, and osteoblast numbers. |
Co-immunoprecipitation of GILZ with C/EBPs, PPARγ promoter reporter assays, transgenic mice, bone histomorphometry, MSC differentiation assays |
The Journal of biological chemistry |
Medium |
24860090
|
| 2016 |
Curcumin induces GILZ protein expression post-transcriptionally via HuR: HuR binds GILZ mRNA (confirmed by RNA immunoprecipitation), and HuR overexpression increases GILZ protein but not mRNA. GILZ induction by curcumin mediates its anti-inflammatory effects (NF-κB/ERK inhibition, TNF-α reduction) in macrophages, as shown in GILZ KO macrophages. |
RNA immunoprecipitation (RIP) of HuR–GILZ mRNA, HuR overexpression, GILZ KO bone marrow-derived macrophages, NF-κB/ERK activity assays, TNF-α ELISA |
The Journal of biological chemistry |
Medium |
27629417
|
| 2017 |
In immunoregulatory MSC (primed with IFN-γ and TNF-α), GILZ translocates to the nucleus and binds the promoters of iNOS and Activin βA to induce their expression. Activin A produced downstream of GILZ directly represses Th17 cell differentiation via Smad3/2 activation. |
ChIP of GILZ at iNOS and Activin βA promoters, nuclear translocation imaging, Activin A ELISA, Smad2/3 phosphorylation, adoptive transfer experiments |
Theranostics |
Medium |
29344311
|
| 2018 |
GILZ deletion in adults causes exhaustion of GFRα1+ spermatogonial stem cells and germline degeneration associated with mTORC1 activation and reduced USP9X (a deubiquitylase required for spermatogenesis). mTOR inhibitor treatment rescues GFRα1+ spermatogonial failure. GILZ interacts with TSC22D family proteins (forming GILZ-TSC22D complexes) and controls ERK MAPK upstream of mTORC1. |
Adult conditional Gilz knockout, mTOR inhibitor rescue, USP9X expression analysis, co-immunoprecipitation of GILZ with TSC22D proteins, ERK phosphorylation analysis in cultured spermatogonia |
Development |
High |
30126904
|
| 2018 |
GILZ restrains neutrophil activation by reducing ERK and p38 MAPK phosphorylation as well as NOX2 and p47phox activation; GILZ-KO neutrophils show enhanced phagocytosis, oxidative burst, and bacterial killing. |
GILZ-KO neutrophils, Candida albicans infection model, DNBS colitis model, MAPK phosphorylation (Western blot), oxidative burst assay, phagocytosis assay |
Journal of leukocyte biology |
Medium |
30371949
|
| 2019 |
Stress-induced elevation of corticosterone upregulates Tsc22d3 (GILZ) in dendritic cells, which blocks type I IFN responses in DCs and IFN-γ+ T cell activation. Enforced DC-specific Tsc22d3 expression is sufficient to abolish therapeutic tumor control, and DC-specific Tsc22d3 deletion reverses the negative impact of stress/glucocorticoid on therapy outcomes. |
Social defeat stress mouse model, DC-specific Tsc22d3 transgenic and conditional KO mice, glucocorticoid receptor antagonist treatment, IFN response assays, tumor challenge models |
Nature medicine |
High |
31501614
|
| 2019 |
Cholesterol deficiency under hypoxia activates SREBP1, which induces GILZ expression; GILZ in turn binds the FVII gene locus (confirmed by chromatin immunoprecipitation in xenograft tumors) and activates FVII transcription. GILZ expression is also induced by HIF1α. Reciprocal regulation between SREBP1 and GILZ was observed. |
ChIP in xenograft tumor samples (HIF1α at TSC22D3 locus; GILZ at FVII locus), GILZ siRNA knockdown, SREBP1 manipulation, luciferase reporter assays |
Thrombosis and haemostasis |
Medium |
31055798
|
| 2020 |
Glucocorticoid-transactivated TSC22D3 (GILZ) interacts with HIF-1α (shown by co-immunoprecipitation) and promotes degradation of hypoxia-stabilized HIF-1α via the ubiquitin-proteasome pathway. TSC22D3 silencing reverses glucocorticoid-mediated HIF-1α ubiquitination and galectin-1 downregulation. |
Co-immunoprecipitation of TSC22D3 with HIF-1α, ubiquitination assay, TSC22D3 siRNA knockdown, HIF-1α protein stability assay, in vivo diabetic mouse retina model |
Journal of cellular and molecular medicine |
Medium |
32150332
|
| 2022 |
GILZ directly binds STAT1 and prevents its nuclear translocation, thereby suppressing IFN-stimulated gene (ISG) expression and the type I IFN auto-amplification loop. GILZ deficiency permits a type I IFN signature, and GILZ overexpression prevents ISG upregulation in response to IFNα. |
Co-immunoprecipitation of GILZ with STAT1, nuclear translocation assay, GILZ overexpression and knockout in human PBMC, ISG reporter assays, TLR7/9 stimulation |
Journal of autoimmunity |
High |
35810690
|
| 2022 |
Type I IFN suppresses GILZ expression and glucocorticoid induction of GILZ in a JAK1/Tyk2-dependent manner; IFN activation of this pathway reduces GR binding at key regulatory regions of the GILZ locus, as shown by ChIP. |
ChIP for GR at GILZ locus, JAK inhibitor treatment (tofacitinib/tosylate salt), in vitro IFN treatment of human PBMCs, large SLE patient dataset correlation |
Frontiers in immunology |
Medium |
36505447
|
| 2004 |
GILZ overexpression in T-cell lineage transgenic mice decreases CD4+CD8+ thymocyte number, increases thymocyte apoptosis via reduced Bcl-xL expression and activated caspase-8 and caspase-3. TAT-GILZ fusion protein delivered into wild-type thymocytes decreases Bcl-xL and promotes apoptosis. |
Transgenic mice overexpressing GILZ in T cells, ex vivo thymocyte apoptosis assays, caspase activity assays, Bcl-xL Western blot, TAT-GILZ protein delivery |
Blood |
Medium |
15319285
|
| 2012 |
Gilz knockout male mice develop severe testis dysplasia from postnatal day 10, increased apoptosis in seminiferous tubules, increased Leydig cells, and elevated FSH and testosterone; males are infertile. Additionally, Tsc22d3-2 KO mice display subtle renal sodium/water handling deficiency but no major immunological defects under unstressed conditions. |
Cre/loxP conditional KO (Tsc22d3-2), testis histology, TUNEL apoptosis, hormone quantification (FSH, testosterone), renal electrolyte measurement, immune challenges |
Molecular endocrinology |
High |
22556341
|
| 2015 |
GILZ-deficient mice develop progressive B-cell lymphocytosis with expansion of B220+ cells dependent on increased B-cell survival; decreased B-cell apoptosis in gilz KO mice correlates with increased NF-κB transcriptional activity and Bcl-2 expression. B-cell-specific gilz KO confirms the effect is B-cell intrinsic. |
Global and B-cell-specific gilz KO mice, flow cytometry, apoptosis assays, NF-κB reporter, Bcl-2 Western blot |
Blood |
High |
26276664
|
| 2012 |
In alcohol-treated cells, unliganded GR binds GREs in the GILZ proximal promoter (shown by gel mobility shift assay) and transactivates gilz expression independent of glucocorticoids; GR knockout (CRISPR/Cas9) or GILZ depletion (siRNA) diminishes alcohol-mediated suppression of the LPS inflammatory response. |
Gel mobility shift assay (EMSA) for GR–GRE interaction, GRE deletion/mutation luciferase reporters, CRISPR/Cas9 GR knockout, siRNA GILZ knockdown, GR nuclear translocation, alcohol dehydrogenase inhibitor (fomepizole) |
Frontiers in immunology |
Medium |
28638383
|
| 2017 |
IBDV VP4 suppresses GILZ K48-linked ubiquitylation, protecting GILZ from degradation and thereby inhibiting IFN-β expression. Mutation of VP4 residue R41G abolishes both VP4's inhibitory effect on IFN-β and on GILZ ubiquitylation. IBDV infection also markedly inhibits endogenous GILZ ubiquitylation. |
Ubiquitylation assays (K48-linkage specific), VP4 R41G point mutant, IBDV infection of cells, IFN-β reporter assays |
Immunobiology |
Medium |
29146236
|
| 2012 |
Bacterial toxins YopT and Clostridium difficile toxin B induce GILZ expression in epithelial cells by inactivating Rho GTPases; MAPK activation is required. USF-1 and USF-2 bind a canonical E-box (c-Myc binding site) in the GILZ promoter, which is essential for both basal and toxin-B-induced GILZ transcription. |
GILZ promoter reporter assays, gel shift analysis (EMSA for USF1/2 binding), USF-1/2 siRNA knockdown, MAPK inhibitors, Yersinia mutant strains, RhoA/RhoB overexpression |
PloS one |
Medium |
22792400
|
| 2023 |
RBM47-ISGylation (at K329) negatively regulates TSC22D3 mRNA expression; K329R knockin mice with defective RBM47 ISGylation show elevated TSC22D3 and broad immunosuppression. A nanobody-targeted E3 ligase inducing site-specific RBM47 ISGylation in human cells directly inhibits TSC22D3 expression. |
K329R knockin mice, nanobody-targeted site-specific ISGylation in human cells, TSC22D3 mRNA quantification, LPS-induced lung injury and tumor models |
Cell death discovery |
Medium |
38036512
|