| 2003 |
ING5 (p28ING5) physically interacts with p300 (a histone acetyltransferase) and p53 in vivo, enhances p53 acetylation at Lys-382, activates the p21/WAF1 promoter, and induces p53-dependent apoptosis and cell cycle arrest. |
Co-immunoprecipitation (in vivo), colony formation assay, cell cycle analysis, luciferase reporter assay, western blot |
Cancer research |
High |
12750254
|
| 2013 |
ING5 acts as a cofactor of Tip60 (KAT5) acetyltransferase to promote acetylation of p53 at K120 in response to DNA damage; ING5 forms a trimeric complex with p53 and Tip60, and K120-acetylated p53 binds the BAX and GADD45 promoters to drive apoptosis. ING5 had no effect on p53 acetylation at K373/382 and did not assist hMOF in acetylating p53-K120. |
Co-immunoprecipitation, western blot, chromatin immunoprecipitation (ChIP), site-directed mutagenesis (K120R), siRNA knockdown, gene expression analysis |
Cancer research |
High |
23576563
|
| 2011 |
ING5 interacts with INCA1 (inhibitor of cyclin A1), and this interaction is required for ING5's antiproliferative and pro-apoptotic functions; ING5 overexpression suppresses cell proliferation, delays S-phase progression, and enhances Fas-induced apoptosis only in INCA1-sufficient cells (Inca1-/- cells are refractory). |
Yeast two-hybrid, retroviral overexpression in Inca1+/+ and Inca1-/- MEFs and bone marrow, colony formation assay, cell cycle analysis, apoptosis assay |
PloS one |
High |
21750715
|
| 2015 |
ING5 is phosphorylated at threonine 152 by cyclin E/CDK2 and cyclin A/CDK2 in vitro; this phosphorylation is cell-cycle-regulated in cells and is located in a bipartite nuclear localization sequence, but phosphorylation at T152 alone is not sufficient to alter ING5 subcellular localization. ING5 knockdown reduces tumor cell proliferation and induces apoptosis independently of p53 status. |
In vitro kinase assay, phospho-specific antibody, cyclin E/CDK2 overexpression, CDK2 inhibitor (p27KIP1), site-directed mutagenesis, siRNA knockdown, cell cycle analysis |
PloS one |
High |
25860957
|
| 2017 |
ING5 differentially regulates protein lysine acetylation: overexpression of ING5 promotes autoacetylation of p300 at K1555, K1558, K1560, K1647 and K1794 within/near its HAT domain, activating p300 HAT activity and leading to increased acetylation of p53-K382 and histone H3-K18 and downstream expression of p21 and Bax. A p300 HAT inhibitor (C646) blocked these effects. |
SILAC-based quantitative mass spectrometry acetylome profiling, western blot, pharmacological inhibition (C646), gene expression analysis |
Oncotarget |
High |
29416718
|
| 2019 |
ING5 forms homodimers through an N-terminal coiled-coil domain, and can also form heterodimers with ING4. The central region is disordered but binds dsDNA with micromolar affinity. The C-terminal PHD domain binds the H3K4me3 mark equivalently in the dimer. Three cancer-associated N-terminal mutations destabilize the coiled-coil structure and affect cell proliferation and cell cycle distribution. |
NMR spectroscopy, X-ray crystallography (coiled-coil domain), size-exclusion chromatography, DNA-binding assay, site-directed mutagenesis, cell cycle analysis |
Journal of molecular biology |
High |
31026448
|
| 2017 |
ING5 is the targeting subunit of HBO1, MOZ, and MORF histone acetyltransferase (HAT) complexes and promotes self-renewal of glioblastoma stem-like cells (BTICs) by increasing Oct4, Olig2, and Nestin expression, preventing differentiation, and enhancing PI3K/AKT and MEK/ERK signaling. These effects require the PHD domain of ING5 that binds H3K4me3. |
Ectopic expression, PHD-domain mutant analysis, sphere formation assay, immunofluorescence, western blot, in silico TCGA analysis |
Oncogene |
Medium |
28925404
|
| 2022 |
In a CRISPR/Cas9 synthetic-lethality dropout screen in mouse ESCs, ING5 was identified as a genetic dependency of catalytically dead Set1A/COMPASS; loss of ING5 in Set1A-ΔSET ESCs decreases cell fitness and upregulates differentiation-associated genes, placing ING5 and Set1A/COMPASS as co-regulators of self-renewal vs. differentiation. |
CRISPR/Cas9 genome-wide dropout screen, Set1A catalytic-dead knock-in ESCs, gene expression analysis |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
35500115
|
| 2023 |
In Drosophila, ING5 ortholog Ing5 is a unique binding partner of TCTP; TCTP inhibits nuclear translocation of Ing5 and chromatin binding of the MOZ/MORF (Enok) complex, thereby suppressing H3K23 acetylation. Loss of TCTP rescues Ing5 mutant phenotypes by increasing nuclear Ing5 and Enok chromatin association. Ing5 also controls EGF receptor signaling and organ size via the Yorkie pathway. |
Yeast two-hybrid, in vivo Drosophila genetics (loss-of-function mutants), chromatin immunoprecipitation (H3K23ac), immunofluorescence, epistasis analysis |
Proceedings of the National Academy of Sciences of the United States of America |
High |
37014852
|
| 2024 |
ING5 and ING4 are essential components of KAT6A, KAT6B, and KAT7 HAT complexes required for histone H3K14 acetylation and H3K23 acetylation in vivo; Ing4-/-Ing5-/- mouse embryos arrest at E8.5 with global loss of H3K14ac and reduction of H3K23ac, while Ing5-/- mice develop isolated ventricular septal defects and Ing4+/-Ing5-/- hearts show loss of epicardial cells due to defective cell adhesion gene expression. |
Knockout mouse generation, western blot (histone marks), immunofluorescence, transcriptome analysis, developmental phenotyping |
Development (Cambridge, England) |
High |
38446206
|
| 2024 |
ING5 overexpression upregulates TIE1 (a tyrosine kinase), which phosphorylates pyruvate dehydrogenase kinase 1 (PDK1) at Y163; pY163-PDK1 causes PDHA1 dephosphorylation and activation, switching metabolism from aerobic glycolysis to oxidative phosphorylation, and suppressing lung cancer cell invasion. PDK1-Y163F mutation abrogates these effects. |
Quantitative phosphoproteomics (SILAC), siRNA screening, site-directed mutagenesis (PDK1-Y163F), oxygen consumption/lactate production assays, xenograft mouse model, immunohistochemistry |
Frontiers of medicine |
High |
39269568
|
| 2022 |
ING5 transcription is positively regulated by the transcription factors SRF and YY1 through direct binding to the ING5 promoter (SRF at -717 to -678 bp and YY1 at -48 to +25 bp), forming a SRF-YY1-ING5-p53 complex that activates ING5 expression in gastric cancer cells. |
Electrophoretic mobility shift assay (EMSA), chromatin immunoprecipitation (ChIP), luciferase reporter assay, co-immunoprecipitation |
Frontiers in oncology |
High |
35747809
|
| 2025 |
ING5 (as part of the MORF acetyltransferase complex with Kat6b and Brpf1) antagonizes transcriptional insulation mediated by the CTCF/cohesin loop-extrusion machinery at developmental genes in mouse ESCs; inhibition of Kat6b partially rescues insulator defects caused by loss of the cohesin loader Nipbl. |
Genome-wide CRISPR screen, acute protein depletion (cohesin/CTCF), Hi-C/chromatin topology, transcriptomics, pharmacological inhibition of Kat6b |
bioRxivpreprint |
Medium |
bio_10.1101_2025.02.21.639596
|
| 2025 |
ING5 knockout mice develop diffuse large B-cell lymphomas at a 6-fold higher rate than wild-type controls, and ING5 KO mouse embryo fibroblasts accumulate in G2, exhibit elevated γH2AX (DNA damage marker), and have abnormal nuclei, establishing an in vivo tumor-suppressor role for ING5 in hematopoietic cells and a function in maintaining genomic integrity. |
CRISPR/Cas9 knockout mice, flow cytometry (cell cycle, γH2AX), pathological tumor analysis, wound healing assay |
PloS one |
High |
39787145
|
| 2017 |
ING5 knockdown in lung cancer A549 cells activates EGFR/PI3K/Akt and IL-6/STAT3 signaling pathways to promote EMT and metastasis; pharmacological inhibition of PI3K (ZSTK474) or STAT3 (Niclosamide) abolishes ING5-knockdown-promoted migration, invasion, and metastasis in mouse xenograft models. |
Phospho-kinase array, western blot, shRNA knockdown, pharmacological inhibition, xenograft tail-vein injection metastasis model, EMT marker analysis |
Oncotarget |
Medium |
28903339
|
| 2023 |
ING5 overexpression in lung cancer cells induces upregulation of miR-34c-5p, which directly targets the 3'UTR of Snail1 (confirmed by dual-luciferase reporter), reducing Snail1 expression and inactivating the TGF-β/Smad3 pathway to inhibit EMT and invasion. |
Overexpression, dual-luciferase reporter assay, miRNA overexpression/inhibition, TGF-β inhibitor (LY2157299), xenograft metastasis model (tail vein injection), TCGA data analysis |
Acta biochimica et biophysica Sinica |
Medium |
37249332
|
| 2010 |
Three missense mutations in ING5 located within the leucine zipper-like (LZL) and novel conserved region (NCR) domains were detected specifically in oral squamous cell carcinoma tumors; five alternative splicing variants of ING5 were also identified. ING5 mRNA was decreased in 61% of primary tumors, implicating these structural domains in tumor-suppressor function. |
RT-PCR, sequencing, quantitative real-time RT-PCR (qRT-PCR), analysis of matched normal/tumor pairs |
International journal of cancer |
Low |
20131318
|
| 2023 |
ING5 is required for normal hematopoietic cell numbers in the fetal liver in a cell-extrinsic manner; Ing5-null mice showed decreased fetal liver cellularity, fewer hematopoietic stem cells, and perturbed erythropoiesis, but competitive transplantation showed no cell-intrinsic long-term repopulation defect. |
Knockout mouse model (null allele), cell counting, flow cytometry, competitive bone-marrow transplantation |
Frontiers in immunology |
Medium |
37275850
|