| 1997 |
Dlx-1 and Dlx-2 double knockout mice show a time-dependent block in striatal differentiation: early-born neurons migrate normally, but later-born neurons accumulate in the proliferative zone, establishing that Dlx-1 and Dlx-2 are required for development of the striatal subventricular zone and differentiation of late-born striatal matrix neurons. |
Targeted gene knockout (loss-of-function) with histological and marker analysis of striatal differentiation |
Neuron |
High |
9247261
|
| 1997 |
Dlx-1 and Dlx-2 regulate proximodistal patterning of the branchial arches; mice lacking both genes lack maxillary molars and show conversion of odontogenic ectomesenchyme to a chondrogenic fate, demonstrating that Dlx-1 and Dlx-2 specify odontogenic identity in cranial neural crest-derived ectomesenchyme. |
Targeted knockout, heterologous tissue recombination, molecular marker analysis (Barx1, Sox9) |
Developmental biology / Development |
High |
9187081 9428417
|
| 2005 |
Dlx1 is required cell-autonomously for the postnatal survival of specific cortical and hippocampal interneuron subtypes (calretinin+ and somatostatin+ cells), and its loss leads to reduced GABA-mediated IPSCs and delayed-onset epilepsy; parvalbumin+ interneurons are unaffected. |
Dlx1 germline knockout, cell transplantation (cell-autonomous test), electrophysiology (IPSC recordings), EEG |
Nature neuroscience |
High |
16007083
|
| 2007 |
Dlx1 and Dlx2 transcription factors repress oligodendrocyte precursor cell (OPC) formation in ventral telencephalic progenitors by acting on a common progenitor to determine neuronal versus oligodendroglial cell fate; in Dlx1&2 mutant progenitors transplanted into wild-type mice, cells differentiate into myelinating oligodendrocytes instead of neurons. |
Conditional knockout, progenitor transplantation into wild-type neonates, lineage tracing |
Neuron |
High |
17678855
|
| 2002 |
Dlx1 and Dlx2 homeobox transcription factors downregulate Notch signaling during specification and differentiation of late subventricular zone progenitors (P3 stage), complementing Mash1's role in early neurogenesis through Notch; this positions Dlx1/2 downstream in the temporal control of subcortical telencephalic neurogenesis. |
Genetic epistasis with Mash1 and Delta-like 1 mutants, combinatorial marker analysis of progenitor stages |
Development |
Medium |
12397111
|
| 2003 |
DLX1 interacts directly with Smad4 through its homeodomain and blocks TGF-β superfamily signaling (activin A, TGF-β1, BMP-4), including inhibition of activin A-induced differentiation of hematopoietic cells. |
Co-immunoprecipitation, reporter assays, functional differentiation block assays in hematopoietic cell lines |
PNAS |
Medium |
14671321
|
| 2007 |
MASH1 directly binds the I12b intergenic enhancer of the Dlx1/2 locus and regulates Dlx1/2 forebrain expression; additionally, DLX proteins directly bind I12b to maintain their own expression in an autoregulatory loop, demonstrated by DNase I footprinting, transgenic reporter assays, and co-transfection experiments. |
DNase I footprinting, site-directed mutagenesis of enhancer binding sites, transgenic reporter mice, co-transfection assays |
Development |
High |
17409112
|
| 2009 |
Dlx1 and Dlx2 are required for the differentiation of GSX2+ and ASCL1+ neural stem/progenitor cells in the lateral ganglionic eminence into olfactory bulb interneurons; overexpression of Dlx1&2 in cortex ectopically produces OB-like interneurons, and the effect requires downstream activation of Sp8/9. |
Constitutive and conditional knockout, gain-of-function (in utero electroporation), compound mutant analysis |
Cerebral cortex |
High |
30796806
|
| 2013 |
Dlx1&2 act directly upstream of Zfhx1b (Sip1/Zeb2) in the medial ganglionic eminence; loss of Zfhx1b in MGE prevents repression of Nkx2-1 and causes cells destined to become cortical interneurons to adopt a striatal interneuron fate, revealing a DLX1/2→Zfhx1b pathway for the cortical vs. striatal interneuron fate switch. |
Conditional knockout, genetic epistasis, transcription factor expression analysis |
Neuron |
High |
23312518
|
| 2013 |
Compound loss of Gsx2 in Dlx1/2 mutants rescues overexpression of Ascl1, Hes5, and Olig2, placing Gsx2 downstream of Dlx1/2 in the LGE/CGE/septum transcriptional hierarchy; loss of Gsx1 in Dlx1/2 mutants partially rescues MGE properties including cortical interneuron migration. |
Compound loss-of-function mouse genetics, transcription factor marker analysis |
Journal of comparative neurology |
Medium |
23042297
|
| 2014 |
Olig1 directly represses the Dlx1/2 I12b intergenic enhancer; Olig1 deletion causes ectopic upregulation of Dlx1/2 and an ~30% increase in adult cortical interneuron numbers, establishing Olig1 as a direct upstream repressor of Dlx1/2 expression. |
Olig1 knockout, ChIP-seq/reporter assay for direct Olig1 binding to I12b, interneuron counting |
Neuron |
High |
24507192
|
| 2015 |
The lncRNA Evf2 recruits DLX1 and the chromatin remodeler BRG1 (SMARCA4/BAF) into a ribonucleoprotein complex at Dlx1/2 enhancers in the developing forebrain; Evf2 RNA directly inhibits BRG1 ATPase and chromatin remodeling activity, converting an active enhancer to a repressed state despite stabilizing DLX1 at the enhancer. BRG1 interacts with DLX1 and Evf2 through distinct binding sites. |
Mass spectrometry, Co-IP, ChIP, in vitro ATPase assay, chromatin remodeling assay, nuclear colocalization imaging |
Development |
High |
26138476
|
| 2016 |
FOXM1 transcriptionally upregulates DLX1 through two conserved binding sites in the DLX1 promoter; DLX1 then promotes ovarian cancer cell invasion and intraperitoneal dissemination by directly interacting with SMAD4 in the nucleus upon TGF-β1 induction, upregulating PAI-1 and JUNB. |
Promoter luciferase assays, ChIP, Co-IP (DLX1–SMAD4 interaction), siRNA knockdown, in vivo xenograft |
Oncogene |
Medium |
27593933
|
| 2018 |
DLX2 directly drives expression of Gad1, Gad2, and Vgat in cortical interneurons; conditional Dlx1/2 knockouts have reduced mIPSC amplitude, fewer GABAergic synapses on excitatory neurons, hypoplastic dendrites, and reduced GRIN2B expression, demonstrating that Dlx1&2 coordinate GABA synthesis, synaptogenesis, and dendritogenesis postnatally. |
Conditional knockout (Dlx1, Dlx2, Dlx1&2 CKOs), ChIP for direct DLX2 binding to Gad1/Gad2/Vgat, electrophysiology (mIPSC), morphometric analysis |
Cerebral cortex |
High |
29028947
|
| 2018 |
Dlx1/2 are required for specification of GHRH-neuron identity in the hypothalamic arcuate nucleus and simultaneously suppress AgRP-neuron fate; mechanistically, Dlx1/2 repress Otp expression by directly binding the Otp gene, and Otp is required for AgRP-neuron generation. |
Dlx1/2 conditional knockout, ChIP (DLX1/2 binding to Otp gene), phenotypic analysis of GHRH and AgRP neuron numbers |
Nature communications |
High |
29795232
|
| 2022 |
DLX1 contains a motif that directly binds RBBP4, a NuRD complex subunit; ChIP-seq shows DLX1 and NuRD co-localize at regulatory elements near transcription factor genes; Dlx1/2 loss disrupts chromatin accessibility at these elements (including near Olig2); Dlx1/2 and Rbbp4 heterozygosity together increase OLIG2+ cell production, establishing DLX1–NuRD cooperation in enhancer decommissioning and cell-fate repression. |
Protein interaction (DLX1 motif–RBBP4 binding), ChIP-seq (DLX1 and 6 NuRD subunits), ATAC-seq, compound heterozygous genetics |
Development |
High |
35695185
|
| 2022 |
Dlx1/2 regulate expression of Meis2 in the lateral ganglionic eminence at least partially through direct action on the enhancer hs599; Meis2 in turn directly binds the Zfp503 and Six3 promoters to promote D1 and D2 MSN fate determination, placing Dlx1/2 upstream of Meis2 in the striatal neuronal specification pathway. |
Meis2 conditional knockout, Dlx1/2 mutant analysis, ChIP (Meis2 binding to Zfp503 and Six3 promoters), enhancer reporter assay |
Development |
High |
35156680
|
| 2012 |
The Rb/E2F pathway directly regulates Dlx1 and Dlx2 transcription: Rb deficiency reduces Dlx1/Dlx2 expression via repressor E2F sites at the Dlx1/Dlx2 proximal promoters and the I12b enhancer, demonstrated by ChIP in vivo and reporter assays in vitro, linking cell cycle machinery to interneuron differentiation and migration. |
Rb knockout, ChIP (E2F binding to Dlx1/2 promoters and I12b), reporter assays, interneuron subtype and migration analysis |
Journal of Neuroscience |
High |
22699900
|
| 2008 |
Both I12b and URE2 cis-regulatory elements of the Dlx1/2 locus are direct targets of DLX2 and require Dlx1 and Dlx2 expression for proper activity in vivo, providing in vivo evidence for autoregulation of Dlx1/2 expression through these enhancers. |
Cre-transgenic mice with I12b and URE2 enhancers, fate mapping, Dlx1/2 mutant enhancer activity assays |
Molecular and cellular neurosciences |
Medium |
19026749
|
| 2013 |
DLX1 transcription factor regulates dendritic growth and postsynaptic differentiation in interneurons by repressing neuropilin-2 and PAK3 expression in a DNA-binding-dependent manner; knockdown of Dlx1 in interneurons enhances dendritic growth, while overexpression in pyramidal neurons reduces dendritic complexity. |
Overexpression/knockdown in hippocampal culture, DNA-binding domain mutant, manipulation of downstream effectors (neuropilin-2, PAK3) |
European Journal of Neuroscience |
Medium |
24236816
|
| 2011 |
Brn-3b physically interacts with DLX1 through its homeodomain, repressing DLX1 transcriptional activity; this interaction biases retinal progenitors toward RGC fate and away from amacrine cell fate, as shown by retroviral misexpression and combined ectopic expression experiments. |
Co-immunoprecipitation (Brn-3b–DLX1 homeodomain interaction), retroviral misexpression in retina, combinatorial overexpression |
Neuroscience |
Medium |
21875655
|
| 2017 |
DLX1 and DLX2 directly activate Brn3b expression in the developing retina, functioning as transcriptional activators of retinal ganglion cell differentiation; Dlx1/Dlx2/Brn3b triple knockout shows near-total RGC loss with amacrine cell increase, more severe than single or double KOs, placing DLX1/2 both downstream of ATOH7 and in a parallel cooperative pathway with Brn3b. |
Triple knockout mouse, Dlx2 knockdown in primary retinal cultures, Dlx2 gain-of-function (in utero electroporation), reporter assays |
Development |
High |
28356311
|
| 2011 |
FLT3 activation upregulates DLX1/2 expression through MAPK/ERK and JNK signaling pathways in AML cells; elevated DLX1 in turn blunts TGF-β/Smad signaling (nuclear phospho-Smad2 increases upon FLT3 inhibition in a DLX1-dependent manner), linking FLT3 signaling to DLX1-mediated Smad pathway suppression. |
FLT3 inhibitor treatment, FLT3 activation, RNA interference (DLX1 knockdown), reverse-phase protein array, western blot for phospho-Smad2 |
Haematologica |
Medium |
21357706
|
| 2018 |
DLX1 interacts with beta-catenin and enhances the interaction between beta-catenin and TCF4, thereby activating beta-catenin/TCF signaling to promote prostate cancer cell growth and migration. |
Co-immunoprecipitation (DLX1–beta-catenin), reporter assays, overexpression in prostate cancer cells |
Experimental cell research |
Low |
29317218
|
| 2020 |
Dlx1/2 are required for normal enteric nervous system function: Dlx1/2-/- mice show slower small bowel transit and loss of neurally mediated contraction complexes, accompanied by dysregulation of Vip expression and fewer VIP-lineage neurons, without gross changes in neuronal or glial density. |
Dlx1/2 knockout, GI motility assays, RNA sequencing of ENS, immunohistochemistry, reporter mice for VIP lineage |
JCI insight |
Medium |
32017713
|
| 2013 |
The Dlx1 antisense lncRNA (Dlx1as) inversely regulates Dlx1 transcript levels; mice devoid of Dlx1as show a mild phenotype resembling Dlx1 gain-of-function, indicating that Dlx1as modulates Dlx1 mRNA stability/levels. |
Targeted ablation of Dlx1as lncRNA in vivo, skeletal and neurological phenotyping, quantitative expression analysis |
Developmental biology |
Medium |
23415800
|
| 2025 |
PERK haplotype B (associated with PSP risk) permits selective translation of DLX1 mRNA under UPR conditions where PERK-A suppresses it; DLX1 undergoes a solubility shift to detergent-insoluble fractions in PSP brain, and silencing the Drosophila DLX1 homolog reduces tau-induced toxicity in vivo, placing DLX1 downstream of PERK-B in a tau pathology pathway. |
Puromycin-based proteomics (SUnSET), controlled PERK haplotype cellular model, biochemical fractionation of human PSP brain tissue, Drosophila tau toxicity model with DLX1 homolog knockdown |
Journal of Neuroscience |
Medium |
41708330
|
| 2025 |
DLX1 directly binds two conserved motifs in the NCS1 promoter to drive NCS1 transcriptional activation, establishing NCS1 as a direct transcriptional target; NCS1 then activates c-MYC, defining a DLX1→NCS1→MYC oncogenic axis in lung adenocarcinoma. |
ChIP assay, luciferase reporter assay, DLX1 silencing with rescue by NCS1 overexpression, in vivo xenograft |
Biochimica et biophysica acta. Molecular basis of disease |
Medium |
40614386
|