| 1999 |
Hes1 and Hes5 are essential downstream effectors of Notch signaling in mammalian neuronal differentiation; constitutively active Notch fails to inhibit neuronal differentiation in Hes1/Hes5 double-null neural precursor cells, placing Hes1 genetically downstream of Notch in this pathway. |
Retroviral misexpression of constitutively active Notch in wild-type, Hes1-null, Hes5-null, and Hes1/Hes5 double-null mouse neural precursor cells; genetic epistasis |
The EMBO journal |
High |
10205173
|
| 1998 |
Delta-1 activation of Notch-1 results in transcriptional upregulation of HES-1; this transactivation requires both Kuzbanian metalloprotease activity and RBP-J (CSL) transcription factor activity, placing HES-1 as a direct transcriptional target downstream of the Delta-1/Notch-1/RBP-J axis. |
Two-cell coculture assay with Notch-1-expressing cells and Delta-1-expressing cells; HES-1 promoter-luciferase reporter; endogenous HES-1 mRNA measurement; dominant-negative Kuzbanian and RBP-J inhibition |
Molecular and cellular biology |
High |
9819428
|
| 2000 |
Hes1 deficiency in mice causes depletion of pancreatic epithelial precursors through accelerated differentiation into endocrine cells, with upregulation of multiple bHLH proneural/endocrine factors, establishing Hes1 as a general negative regulator of endodermal endocrine differentiation that keeps precursor cells undifferentiated. |
Hes1 knockout mouse analysis; histology; expression analysis of bHLH components in pancreas, stomach and gut |
Nature genetics |
High |
10615124
|
| 2000 |
Hes6 suppresses Hes1 transcriptional repression without itself binding DNA; Hes6 also relieves Hes1-mediated inhibition of Mash1-E47 heterodimer transcriptional activity. Loop-region swapping between Hes1 and Hes6 partially exchanges their specific functions, indicating the loop region is functionally important. |
DNA binding assays; transcriptional reporter assays; retroviral misexpression in developing retina; domain-swap mutagenesis |
Development (Cambridge, England) |
High |
10851137
|
| 2000 |
Hes1 functions as a bHLH transcriptional repressor that antagonizes positive bHLH factors (e.g., Mash1); misexpression of Hes1 inhibits differentiation and maintains precursor/proliferative state, while loss of Hes1 leads to upregulation of positive bHLH genes and premature differentiation across multiple tissues (brain, eye, pancreas, thymus). |
Hes1 knockout mouse model; Hes1 misexpression experiments; expression analysis of downstream bHLH targets |
Molecules and cells |
High |
10774739
|
| 2003 |
Mathematical modeling demonstrates that the observed ~2-hour oscillatory expression of Hes1 mRNA and protein is driven by transcriptional time delays inherent in the negative autoregulatory feedback loop of Hes1; oscillation period is determined by the delay and the protein/mRNA half-lives. |
Mathematical modeling of delay differential equations constrained by experimental mRNA and protein half-life data |
Current biology : CB |
Medium |
12932324
|
| 2004 |
Hes-1 directly represses E2F-1 transcription through a CACGAG site in the E2F-1 promoter, inhibiting G1/S-phase transition and estrogen/heregulin-beta1-stimulated proliferation in breast cancer cells. |
Tetracycline-regulated HES-1 expression; dominant-negative HES-1; luciferase reporter with E2F-1 promoter and CACGAG site mutation; cell cycle analysis |
Oncogene |
High |
15467735
|
| 2004 |
HES-1 is a novel transcriptional target of the aryl hydrocarbon receptor (AhR); AhR and HES-1 protein compete for binding to a composite HES/XRE element at -48/-42 in the HES-1 promoter, establishing a negative autoregulatory loop where HES-1 represses its own AhR-induced transcription. |
Actinomycin D transcription inhibition; luciferase reporter with HES-1 promoter; identification and mutation of XRE/HES composite element; protein competition assays |
Molecular pharmacology |
Medium |
14722248
|
| 2004 |
Notch/Hes-1 signaling blocks adipogenesis by suppressing C/EBPalpha and PPARgamma2 induction; constitutive Hes-1 expression mimics Jagged1-induced differentiation block, which can be rescued by ectopic C/EBPalpha or PPARgamma2. Additionally, Hes-1 down-regulates DLK/Pref-1 transcription, revealing a dual role in adipocyte development. |
Notch ligand (Jagged1) exposure of 3T3-L1 cells; retroviral Hes-1 expression; siRNA knockdown of Hes-1; retroviral rescue with C/EBPalpha and PPARgamma2 |
Molecular and cellular biology |
High |
15060169
|
| 2005 |
Hes1 directly promotes progenitor cell proliferation by transcriptionally repressing the cyclin-dependent kinase inhibitor p27Kip1 through binding to class C sites in the p27Kip1 promoter; Hes1-deficient mouse tissues show elevated p27Kip1 transcripts. |
Tetracycline-inducible Hes1 expression; p27Kip1 promoter-reporter assays; chromatin immunoprecipitation; retinoic acid-induced Hes1 repression model; Hes1-null mouse tissue analysis |
Molecular and cellular biology |
High |
15870295
|
| 2006 |
Persistent and high-level Hes1 expression constitutively represses proneural bHLH gene (Mash1) expression in boundary cells of the developing CNS, forming neuron-free organizing centers; loss of Hes1/Hes3/Hes5 causes ectopic proneural gene expression and neurogenesis at boundaries. |
Hes1/Hes3/Hes5 compound knockout mice; retroviral persistent Hes1 expression in neural progenitors; in situ hybridization for Hes1 and Mash1 |
Development (Cambridge, England) |
High |
16728479
|
| 2006 |
HES1 inhibits hematopoietic progenitor cell cycling in a manner requiring its DNA-binding domain; HES1 overexpression upregulates p21(Cip1/Waf1) and inhibits cell expansion without inducing apoptosis or altering differentiation, while preserving long-term HSC reconstituting activity. |
Lentiviral overexpression of wild-type HES1 vs. DNA-binding domain deletion mutant (BHES1) in human CD34+ and mouse HSCs; in vitro cycling assays; in vivo repopulation assays |
Stem cells (Dayton, Ohio) |
High |
16513761
|
| 2006 |
Hes1 directly represses p57 transcription in pancreatic progenitors to maintain their cell cycle progression; Hes1 inactivation upregulates p57, causing cell cycle arrest and precocious differentiation. p57/Hes1 double-null embryos show expanded progenitor populations, confirming that p57 is a direct Hes1 target mediating progenitor self-renewal. |
Hes1 knockout mice; p57/Hes1 double knockout mice; expression analysis; genetic epistasis |
Developmental biology |
High |
16899237
|
| 2006 |
Hes-1 expression is elevated in confluent endothelial cells through a Notch-independent mechanism involving c-Jun N-terminal kinase (JNK) signaling, demonstrating that HES-1 can be regulated by a non-Notch pathway. |
Comparison of Notch activation levels vs. Hes-1 protein in proliferating vs. confluent endothelial cells; pharmacological JNK inhibition; Western blot |
Laboratory investigation |
Medium |
16732296
|
| 2007 |
Stat3 oscillations, induced by serum, drive oscillatory Hes1 expression by regulating Hes1 protein half-life; coupled Stat-Hes1 oscillations are required for efficient G1 cell cycle progression and cell proliferation. |
Serum stimulation assays; identification of Stat3/Smad1 oscillations with their inhibitors Socs3/Smad6; Hes1 protein half-life measurements; loss of Hes1 oscillation with G1 phase analysis |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
17592117
|
| 2007 |
Id proteins directly interact with Hes1 protein and release its negative autoregulatory feedback (self-repression) without interfering with Hes1 repression of other target genes, thereby sustaining Hes1 expression levels in early neural tube and maintaining neural stem cell pools. |
Co-immunoprecipitation of Id2 with Hes1; Id2 overexpression in chick hindbrain; Id1/Id3 double knockout mice; Id1-3 RNAi in chick embryos; Hes1 expression analysis |
Developmental cell |
High |
17681138
|
| 2008 |
HES1 directly represses 5-HT1A receptor transcription through a HES consensus site in the promoter; HES1 represses at both C(-1019) and G(-1019) alleles (unlike HES5 which is allele-selective). Loss of HES1 in knockout mice elevates 5-HT1A receptor expression in E12.5 hindbrain and midbrain, confirming HES1 is required for correct developmental 5-HT1A expression. |
HES1 promoter-reporter assays with consensus site mutation; HES1 overexpression and HES6 co-expression experiments; HES1-/- mouse 5-HT1A expression analysis |
Molecular and cellular neurosciences |
High |
18499474
|
| 2011 |
HES1 directly interacts with PARP1 in B-cell ALL; HES1-PARP1 interaction inhibits HES1 transcriptional function and activates PARP1, leading to PARP1 auto-ADP-ribosylation, NAD+ consumption, ATP depletion, and apoptosis-inducing factor nuclear translocation, causing apoptosis specifically in B-ALL but not T-ALL. |
Co-immunoprecipitation of HES1 and PARP1; PARP1 activation assays; NAD+/ATP measurements; AIF nuclear translocation assay; cell viability in B-ALL vs. T-ALL |
Blood |
High |
21224467
|
| 2012 |
GATA-1, facilitated by Ikaros, directly represses Hes1 gene expression in erythroid cells by recruiting FOG-1, NuRD/MI-2 ATPase, GFI1B, and the Polycomb repressive complex 2 (PRC2/EZH2) to the Hes1 locus; EZH2-mediated H3K27 methylation is required for transient Hes1 repression during erythroid differentiation. |
RNAi depletion of HES1 in mouse erythroleukemia cells; Ikaros-deficient mouse erythroid cells; ChIP for GATA-1, FOG-1, MI-2, GFI1B, EZH2 at Hes1 locus; EZH2 requirement assays |
Molecular and cellular biology |
High |
22778136
|
| 2013 |
Hes1 directly binds to the promoter region of the FLT3 gene and represses its transcription; Hes1 deletion in MLL-AF9 leukemia cells upregulates FLT3, enhances FLT3L-stimulated ERK phosphorylation and proliferation, and FLT3 inhibition reverses Hes1-null AML cell proliferation. |
ChIP of Hes1 at FLT3 promoter; FLT3 promoter-reporter assays; Hes1 knockout in MLL-AF9 AML model; ERK phosphorylation assays; FLT3 inhibitor treatment |
Leukemia |
High |
25234168
|
| 2015 |
HES1 directly represses BBC3 (encoding the pro-apoptotic PUMA) in T-ALL cells, thereby promoting tumor cell survival downstream of NOTCH1 signaling. |
HES1 knockdown in T-ALL; BBC3/PUMA expression analysis; functional apoptosis assays; ChIP at BBC3 locus |
Blood |
Medium |
25784680
|
| 2015 |
Ubiquitin-specific proteases Usp27x, Usp22, and Usp51 deubiquitinate and stabilize Hes1 protein; Usp22 knockdown shortens Hes1 half-life, delays Hes1 oscillations, and enhances neuronal differentiation in developing mouse brain, while Usp27x misexpression reduces neuronal differentiation. |
Hes1-specific antibody pulldown from mouse ES cells for deubiquitinase purification; deubiquitination assays; Usp22 knockdown (protein half-life, oscillation period measurement); Usp27x misexpression in developing brain |
The FEBS journal |
High |
25846153
|
| 2016 |
Hes1 suppresses inflammatory gene expression (specifically Cxcl1) by inhibiting recruitment of the positive transcription-elongation complex P-TEFb to the Cxcl1 locus, thereby preventing RNA Pol II Ser2 phosphorylation and productive elongation — a post-initiation mechanism distinct from typical pre-initiation transcriptional repression. |
Hes1 knockout macrophages; in vivo neutrophil recruitment assays; ChIP for P-TEFb and RNA Pol II Ser2 phosphorylation at Cxcl1; inflammatory arthritis model |
Nature immunology |
High |
27322654
|
| 2016 |
Hes1 attenuates type I IFN production not by directly repressing IFN genes, but by transcriptionally activating VEGF-C expression (a rare case of Hes1 acting as a transcriptional activator); VEGF-C induction suppresses the TLR upstream adaptor WDFY1, thereby dampening TLR signaling and IFN production. |
Hes1-deficient mice; genome-wide Hes1 ChIP-seq; VEGF-C and WDFY1 expression assays; ENCEPHALOMYOCARDITIS virus infection model; lupus nephritis model |
The Journal of experimental medicine |
High |
31015298
|
| 2016 |
CREB and Sirt-1 cooperatively regulate Hes1 promoter activity in neural stem cells in response to glucose availability: excess glucose promotes Sirt-1-dependent repression of the Hes1 promoter, while low glucose favors CREB replacement of Sirt-1 at Hes1 chromatin, enhancing Hes1 expression and proliferation. |
CREB-deficient NSCs; glucose manipulation; ChIP for CREB and Sirt-1 at Hes1 promoter; Hes1 promoter-reporter assays; NSC proliferation assays |
Cell reports |
High |
26804914
|
| 2018 |
Hes1 directly binds the GADD34 promoter and represses GADD34 expression during ER stress, protecting cells from apoptosis; HES1 depletion increases GADD34 expression and cell death during ER stress in a GADD34-dependent manner. |
HES1 depletion (siRNA/shRNA) in mouse and human cells; ChIP of HES1 at GADD34 promoter; GADD34 expression measurement; cell death assays with GADD34 dependency |
The Journal of biological chemistry |
High |
29491143
|
| 2019 |
In quiescent adult neural stem cells, Hes1 oscillates at higher levels than in active NSCs, keeping Ascl1 continuously suppressed; inactivation of Hes1 and related genes upregulates Ascl1 and increases neurogenesis causing NSC depletion, while sustained Hes1 overexpression represses Ascl1 and maintains quiescence. |
Hes1 conditional knockout mice (with Hes3/Hes5 compound deletion); live imaging of Hes1-Venus and Ascl1-Venus reporters in adult brain NSCs; sustained Hes1 overexpression; Ascl1 oscillation induction |
Genes & development |
High |
30862661
|
| 2019 |
Hes1 oscillates in activated muscle stem cells and drives oscillatory MyoD expression; ablation of the Hes1 oscillator disrupts MyoD oscillations, leads to sustained MyoD expression and premature differentiation, impairing muscle stem cell maintenance and muscle growth/repair. |
Live imaging of Hes1 and MyoD reporters in dispersed cells, single muscle fiber cultures, and muscle biopsies; conditional Hes1 ablation; muscle regeneration assays |
Genes & development |
High |
30862660
|
| 2019 |
Mutant KRAS-induced sustained Hes1 expression (via MAPK/ERK signaling) is required for acinar-to-ductal metaplasia (ADM) to progress to pancreatic intraepithelial neoplasia (PanIN); Hes1 ablation in KrasG12D mice forces ADM to re-differentiate back to acinar cells and prevents PDAC formation. |
Elastase1-CreERT2;KrasG12D mouse model with Hes1 genetic ablation; KrasG12D;Trp53R172H;Hes1-null PDAC model; gene expression analysis; lineage tracing |
Oncogene |
High |
30705405
|
| 2019 |
Epithelial Hes1 deletion modulates ciliogenesis and Smoothened ciliary accumulation in response to Shh; Hes1 potentiates hedgehog signaling in hair follicle stem cells to enable anagen initiation and HFSC self-renewal during repetitive depilation. |
Epithelial Hes1 conditional knockout mice; microarray gene profiling of HFSCs; primary keratinocyte ciliogenesis assays; Smoothened agonist rescue experiments |
Stem cells (Dayton, Ohio) |
Medium |
31721388
|
| 2020 |
Hes1 deficiency in hematopoietic cells leads to HSC exhaustion under replicative stress by upregulating PPARgamma signaling and augmenting fatty acid oxidation (FAO); PPARgamma targeting or FAO inhibition rescues repopulating defects of Hes1-null HSCs by restoring quiescence. |
Hes1-flox/Vav1-Cre conditional knockout mice; bone marrow transplantation/stress hematopoiesis assays; transcriptome analysis; FAO measurement; pharmacological PPARgamma and FAO inhibition |
Stem cells (Dayton, Ohio) |
High |
32129527
|
| 2020 |
Robust Hes1 oscillations (high amplitude) are required for normal NPC proliferation and correct timing of neurogenesis; knock-in mice with dampened Hes1 oscillations (type-1 mutation) display smaller brains, decreased NPC proliferation, increased cell death, and upregulated proneural genes, while elongated-period (type-2) mutants are normal. |
Hes1 knock-in mice with shortened (type-1) and elongated (type-2) oscillation periods; brain morphometry; EdU proliferation assays; TUNEL apoptosis assays; proneural gene expression analysis |
Development (Cambridge, England) |
High |
32094111
|
| 2021 |
RASSF1A acts as a scaffold for the SUMO-targeted E3 ubiquitin ligase SNURF/RNF4 to target HES1 for proteasomal degradation; RASSF1A loss stabilizes HES1 protein, promoting tumor dedifferentiation, independently of RASSF1A's role in the Hippo pathway. |
Co-immunoprecipitation of RASSF1A with HES1 and SNURF/RNF4; ubiquitination assays; proteasome inhibition; RASSF1A depletion with HES1 protein stability measurement; GSI sensitivity assays |
EMBO reports |
High |
34897944
|
| 2021 |
HES1 oscillatory expression is specifically required for neural stem cells to exit quiescence; persistent (non-oscillatory) HES1 expression at physiological levels does not affect entry into quiescence or proliferation but specifically impedes quiescence exit. |
BMP4-induced quiescence in embryonic NSCs; persistent HES1 expression under moderate-strength promoter to override oscillations while maintaining total level; cell cycle and quiescence exit assays |
iScience |
Medium |
34703994
|
| 2022 |
In the medial prefrontal cortex, Hes1 directly binds to the GABAB1 receptor promoter and represses its transcription; Notch1-Hes1 signaling negatively regulates GABAB1 receptor expression and thereby modulates neuronal activity in methamphetamine-induced psychosis. |
ChIP of Hes1 at GABAB1 receptor promoter; Notch1 genetic and pharmacological manipulation; GABAB1 receptor expression and behavioral assays |
Molecular psychiatry |
Medium |
35732696
|
| 2022 |
HES1 transcriptionally activates immunoglobulin-binding protein 1 (IGBP1) expression, which in turn promotes protein phosphatase 6 (PP6) expression and inhibits its ubiquitination; this HES1-IGBP1-PP6 axis is dysfunctional in psoriasis, and L-menthol upregulates HES1 by preventing its proteasomal degradation. |
Target identification screen with L-menthol; ChIP of HES1 at IGBP1 promoter; HES1 knockdown/overexpression; PP6 ubiquitination assays; HES1 protein stability assays |
Nature communications |
Medium |
36535970
|
| 2023 |
Oscillatory Hes1 expression directly represses p21 (Cdkn1a) to promote NSC proliferation; however, sustained Hes1 overexpression paradoxically upregulates p21 by repressing Dusp7 (a phosphatase for p-Erk) and increasing p-Erk levels, which indirectly elevates p21. Thus, Hes1 differentially controls cell proliferation depending on its expression dynamics. |
Oscillatory vs. sustained Hes1 expression in mouse NSCs; p21 expression measurement; Dusp7 expression analysis; p-Erk level measurement; proliferation assays |
Cell reports |
Medium |
37200191
|
| 1994 |
The human HES1 gene (HRY) encodes a bHLH protein with only four amino acid differences from the rat homolog; the coding region is contained within four exons; the locus was mapped by FISH to chromosome 3q28-q29. |
Genomic cloning; sequence analysis; fluorescence in situ hybridization (FISH) |
Genomics |
Medium |
8020957
|
| 1999 |
Forced HES-1 expression in hippocampal neurons inhibits intrinsic and NGF-induced neurite outgrowth and blocks MASH-1-activated differentiation; even a non-DNA-binding mutant of HES-1 retains the ability to repress MASH-1-dependent transcription, indicating a DNA-binding-independent repression mechanism. |
Retroviral HES-1 and MASH-1 expression in TrkA-transfected hippocampal neurons; NGF-induced differentiation assay; non-DNA-binding HES-1 mutant co-expression; reporter assays |
Journal of neuroscience research |
Medium |
10336252
|
| 2020 |
MYEOV interacts directly with SOX9 in the nucleus and enhances SOX9 DNA-binding ability to the HES1 enhancer, promoting HES1 transcription; HES1 knockdown partially abolishes MYEOV oncogenic effects in pancreatic cancer. |
Co-immunoprecipitation of MYEOV and SOX9; ChIP of SOX9 at HES1 enhancer; HES1 reporter assays; HES1 knockdown rescue experiments |
Oncogene |
Medium |
32879444
|
| 2023 |
HES1 directly binds the IGF2BP2 promoter and promotes IGF2BP2 expression; IGF2BP2 then recognizes and binds the m6A site in GLUT1 mRNA, enhancing its stability and promoting aerobic glycolysis in colorectal cancer cells. |
ChIP-PCR of HES1 at IGF2BP2 promoter; dual-luciferase reporter assay; HES1/IGF2BP2 knockdown; GLUT1 mRNA stability measurement; m6A site analysis |
Cell death discovery |
Medium |
37957183
|