Affinage

LHX1

LIM/homeobox protein Lhx1 · UniProt P48742

Length
406 aa
Mass
44.8 kDa
Annotated
2026-04-28
100 papers in source corpus 36 papers cited in narrative 36 extracted findings

Mechanistic narrative

Synthesis pass · prose summary of the discoveries below

LHX1 is a LIM-homeodomain transcription factor that operates within multiprotein complexes—principally with LDB1, OTX2, FOXA2, and SSDP1—to orchestrate cell fate specification, morphogenetic cell movements, and terminal differentiation across multiple organ systems during vertebrate development (PMID:26494787, PMID:15857913, PMID:10623575). Its LIM zinc-finger domains are indispensable for protein–protein interactions and in vivo function, as domain-mutant knock-in mice phenocopy the null (PMID:10862151); LHX1 binds enhancers and promoters of target genes including Otx2, Foxa2, PAPC, Dab1, VIP, Espin, Glp1R, and STING to control head organizer activity, gastrulation movements, kidney field specification, Müllerian duct elongation, GABAergic interneuron identity, Purkinje cell dendritogenesis, circadian SCN synchrony, motor neuron migration, and pancreatic β-cell glucose responsiveness (PMID:7700351, PMID:12530965, PMID:15930111, PMID:14695376, PMID:17166926, PMID:24767996, PMID:20711475, PMID:28516904, PMID:30620636, PMID:41608636). LHX1 expression itself is activated by Nodal/Activin–FoxH1/Smad signaling, OTX2, and BMP/Pax2–FGF cascades, and is post-transcriptionally tuned by miR-30 (PMID:12454922, PMID:25231759, PMID:27578782, PMID:19906860). In the suprachiasmatic nucleus, LHX1 controls both VIP-dependent intercellular coupling and a VIP-independent transcriptional network that confers circadian resilience to temperature perturbation (PMID:24767996, PMID:25035422, PMID:28017605).

Mechanistic history

Synthesis pass · year-by-year structured walk · 19 steps
  1. 1995 High

    The foundational question of LHX1's biological requirement was answered when homozygous null mice revealed that Lim1 is essential for head organizer function, establishing it as a master regulator of anterior pattern formation.

    Evidence Targeted gene deletion in mouse ES cells; null embryos lacked anterior head structures

    PMID:7700351

    Open questions at the time
    • Downstream transcriptional targets unknown
    • Tissue-specific vs. global requirement not resolved
    • Protein interaction partners not identified
  2. 1999 High

    The tissue compartment question was resolved: Lim1 is required in both primitive streak-derived mesendoderm and visceral endoderm for head formation, establishing a double-assurance signaling model; separately, synergy with Pax-8 in kidney specification was demonstrated.

    Evidence Chimeric/tetraploid complementation embryos; Xenopus co-injection of Xlim1 and Pax8 mRNA

    PMID:10491256 PMID:10529411

    Open questions at the time
    • Whether Lim1 directly activates Pax8 targets or acts in parallel
    • Mechanism of visceral endoderm requirement unclear
  3. 2000 High

    Three key mechanistic features were established simultaneously: the LIM zinc-finger domains are essential for all in vivo function (domain mutants phenocopy nulls), OTX2 physically interacts with LHX1 to co-activate transcription, and LHX1 is needed for intermediate mesoderm differentiation but not allocation.

    Evidence LIM domain knock-in mutagenesis in mice; Co-IP/pull-down and luciferase reporter assays; cell transplantation from Lim1-null to wild-type hosts

    PMID:10623575 PMID:10862151 PMID:10864462

    Open questions at the time
    • No genome-wide target identification
    • Whether OTX2–LHX1 interaction occurs on chromatin in vivo
    • Identity of LIM domain-dependent binding partners unknown
  4. 2002 High

    The upstream regulatory input was defined: activin/Nodal signaling activates Lim1 transcription through FAST-1/FoxH1 and Smad4 binding sites in the first intron, placing LHX1 downstream of the Nodal pathway.

    Evidence Reporter constructs with mutated FoxH1 sites; dominant-negative FoxH1 chimeras in Xenopus and zebrafish

    PMID:12454922

    Open questions at the time
    • Whether additional signaling inputs converge on the same regulatory element
    • Chromatin context of the intronic element not characterized
  5. 2003 High

    A pivotal cellular function was revealed: LHX1's primary role in gastrulation is enabling cell movements rather than specifying mesodermal identity, acting through transcriptional regulation of PAPC; separately, cell-autonomous requirement for Müllerian duct formation was established.

    Evidence Antisense depletion in Xenopus with PAPC rescue; Lim1-null mouse cell transplantation; lacZ knock-in chimera analysis in female reproductive tract

    PMID:12530965 PMID:14695376

    Open questions at the time
    • Whether PAPC is a direct transcriptional target
    • Other cell movement effectors downstream of LHX1 not identified
  6. 2005 High

    The cofactor complex was elaborated and kidney-specific roles were dissected: Ssdp1 enhances Lim1–Ldb1 transcriptional activation and genetically interacts with both; conditional knockouts revealed separable LHX1 functions in nephric duct extension and renal vesicle patterning via regulation of Wnt9b and E-cadherin.

    Evidence Ssdp1 mutant mice crossed with Lim1/Ldb1 mutants; tissue-specific Cre conditional KO in kidney

    PMID:15857913 PMID:15930111 PMID:16216236

    Open questions at the time
    • Direct ChIP evidence for LHX1 at Wnt9b/E-cadherin loci lacking
    • Whether Ssdp1 modifies DNA-binding specificity or recruitment
  7. 2006 High

    LHX1's neuronal roles were defined: Lhx1 and Lhx5 together maintain GABAergic identity in dorsal spinal interneurons by sustaining Pax2/5/8 and Gad1/Viaat expression, and Lhx1 controls retinal horizontal cell laminar position without altering cell identity.

    Evidence Lhx1/Lhx5 double KO in spinal cord; conditional Lim1 ablation in retina

    PMID:17166926 PMID:18094249

    Open questions at the time
    • Whether Lhx1 and Lhx5 are fully redundant or have distinct targets
    • Mechanism linking LHX1 loss to horizontal cell mismigration unknown
  8. 2007 High

    Redundancy and cofactor dependency in the cerebellum were resolved: combined loss of Lhx1/Lhx5 or loss of their obligate cofactor Ldb1 causes severe Purkinje cell depletion, confirming the Lhx–Ldb1 complex as a unit of function.

    Evidence Double conditional KO of Lhx1/Lhx5 and Ldb1 conditional KO in cerebellum

    PMID:17664423

    Open questions at the time
    • Transcriptional targets in Purkinje progenitors not identified at this stage
  9. 2009 High

    Post-transcriptional regulation and axon guidance functions were discovered: miR-30 targets the Xlim1 3′UTR to promote timely pronephric differentiation, and Lhx1 acts as a binary axonal trajectory switch with Lhx9 in spinal commissural interneurons.

    Evidence miR-30 morpholino knockdown with 3′UTR reporter validation in Xenopus; ectopic Lhx1 expression in dI1 neurons with axon tracing

    PMID:19545367 PMID:19906860

    Open questions at the time
    • Whether miR-30 regulation is conserved in mammals
    • Downstream effectors of Lhx1 in axon guidance not identified
  10. 2010 High

    A direct mechanistic link between LHX1 and Reelin signaling was established: LHX1 transcriptionally activates Dab1 in LMC motor neurons, coupling soma migration to axon trajectory; separately, LHX1 modulates primordial germ cell positioning via Ifitm1.

    Evidence Lhx1 conditional KO with Dab1 expression analysis and Reelin pathway epistasis; conditional Lhx1 inactivation with PGC tracking

    PMID:20711475 PMID:20845430

    Open questions at the time
    • Whether LHX1 binds the Dab1 promoter directly (ChIP not shown)
    • Ifitm1 regulation mechanism not fully characterized
  11. 2011 High

    LHX1 was shown to be required for specifying the entire renal progenitor field from intermediate mesoderm; a constitutively active form expanded the kidney field, and this capacity was temporally restricted to the specification stage.

    Evidence Constitutively active Lhx1 overexpression and morpholino depletion in Xenopus explants

    PMID:21526205

    Open questions at the time
    • Identity of specification-stage target genes unknown
    • Mechanism of temporal competence restriction unclear
  12. 2014 High

    Multiple tissue-specific roles were refined in parallel: LHX1 maintains Müllerian duct progenitors for elongation; in the SCN, LHX1 drives VIP and other neuropeptide expression required for circadian oscillator synchrony; OTX2 was shown to directly bind the Lhx1 locus to activate its transcription in anterior mesendoderm.

    Evidence Wnt7a-Cre conditional KO in MD; SCN-specific Lhx1 conditional KO with behavioral and ex vivo bioluminescence analysis; Otx2 conditional KO with ChIP-qPCR at Lhx1 regulatory elements

    PMID:24560999 PMID:24767996 PMID:25035422 PMID:25231759

    Open questions at the time
    • Full SCN neuropeptide target repertoire not defined
    • Upstream signals for LHX1 in SCN not identified
  13. 2015 High

    The genome-wide binding landscape and protein complex composition of LHX1 were defined: ChIP-seq identified LHX1 binding at Otx2, Foxa2, and Nodal enhancers; proteomic analysis confirmed the Lhx1/Otx2/Foxa2/Ldb1 complex; and Smad4/Eomes were identified as direct activators of Lhx1 downstream of Nodal.

    Evidence ChIP-seq, co-IP/mass spectrometry, conditional inactivation, and transcriptional profiling in mouse embryos

    PMID:26494787

    Open questions at the time
    • Structural basis of the quaternary complex unknown
    • Enhancer-level specificity determinants not resolved
  14. 2016 High

    Two separable transcriptional networks downstream of LHX1 in the SCN were mapped—VIP-dependent and VIP-independent—with the latter conferring circadian resilience to temperature; separately, the BMP/Pax2→Lim1→FGF signaling cascade in Müllerian duct specification was delineated.

    Evidence Conditional Lhx1 KO with pharmacological and ex vivo thermal challenge; signaling pathway inhibition in chick MD with phospho-myosin light chain readout

    PMID:27578782 PMID:28017605

    Open questions at the time
    • Direct LHX1 targets in the VIP-independent network not all identified
    • Whether FGF/LHX1 axis is conserved across species for MD specification
  15. 2017 High

    A direct transcriptional target in Purkinje cell dendritogenesis was identified: Lhx1/5 activate Espin to regulate F-actin organization; Espin overexpression rescues dendritic spine defects caused by Lhx1/5 loss.

    Evidence Postnatal conditional double KO; Espin rescue; electrophysiology and morphological analysis

    PMID:28516904

    Open questions at the time
    • Whether other cytoskeletal targets contribute
    • Mechanism of Espin transcriptional activation not detailed
  16. 2018 Medium

    A novel interacting partner Furry (Fry/Fryl) was identified in kidney progenitors: the Lhx1–Ldb1–Fry complex synergistically regulates microRNA clusters during kidney field specification.

    Evidence Tandem-affinity purification and Co-IP from Xenopus; fry morpholino knockdown with synergy assay

    PMID:30375416

    Open questions at the time
    • Specific microRNA targets and their downstream effectors not fully validated
    • Fry interaction not confirmed in mammalian system
  17. 2019 High

    LHX1 function was extended to pancreatic β-cells and cortical interneurons: LHX1 co-occupies the Glp1R locus with Isl1/Ldb1 to regulate glucose responsiveness, and controls POA-derived interneuron migration via Eph/ephrin guidance receptors.

    Evidence Reciprocal Co-IP, ChIP, and pancreas-specific conditional KO with metabolic phenotyping; LHX1 conditional KO in POA interneurons with migration assays

    PMID:29912395 PMID:30620636

    Open questions at the time
    • Full β-cell transcriptional program downstream of LHX1 undefined
    • Whether Eph/ephrin targets are direct LHX1 transcriptional targets
  18. 2023 Medium

    A cis-regulatory feedback loop was uncovered: the lncRNA LHX1-DT, transcribed from LHX1's bidirectional promoter, interacts with PHF6 to exchange H2A.Z for canonical H2A at the LHX1 promoter, activating LHX1 during mesoderm commitment.

    Evidence LHX1-DT KO in hESCs; RNA-protein interaction; histone variant ChIP; LHX1 rescue in cardiomyocyte differentiation

    PMID:37942009

    Open questions at the time
    • PHF6–LHX1-DT interaction not confirmed in vivo
    • Whether this mechanism operates outside cardiomyocyte differentiation
  19. 2025 Medium

    An unexpected role in epigenetic repression was revealed: the LHX1–LDB1 complex directly binds the STING promoter and deposits H3K9me3 to repress STING transcription, blocking SASP and innate immune activation in head and neck cancer.

    Evidence ChIP for LHX1/LDB1 at STING promoter; H3K9me3 profiling; LHX1 KO; engineered peptide disruption of LHX1–LDB1; xenograft tumor models

    PMID:41608636

    Open questions at the time
    • Whether LHX1-mediated H3K9me3 deposition occurs in normal tissues
    • Methyltransferase recruited by LHX1–LDB1 not identified
    • Relevance beyond HNSCC not tested

Open questions

Synthesis pass · forward-looking unresolved questions
  • Major open questions include the structural basis of the LHX1–LDB1–OTX2–FOXA2 complex, how LHX1 switches between transcriptional activation and H3K9me3-mediated repression, the full genome-wide target repertoire in each tissue context, and whether LHX1 mutations cause human Mendelian disease.
  • No crystal or cryo-EM structure of LHX1-containing complexes
  • Activation vs. repression mode-switching mechanism unknown
  • No confirmed causative human Mendelian mutations reported in the primary literature timeline

Mechanism profile

Synthesis pass · controlled-vocabulary classification · explore literature graph →
Molecular activity
GO:0140110 transcription regulator activity 11 GO:0003677 DNA binding 4
Localization
GO:0005634 nucleus 4
Pathway
R-HSA-1266738 Developmental Biology 16 R-HSA-74160 Gene expression (Transcription) 8 R-HSA-112316 Neuronal System 6 R-HSA-162582 Signal Transduction 3 R-HSA-4839726 Chromatin organization 2
Partners
FOXA2FOXP1FRYISL1LDB1OTX2PAX8SSDP1
Complex memberships
LHX1-LDB1-ISL1LHX1-LDB1-OTX2-FOXA2LHX1-LDB1-SSDP1

Evidence

Reading pass · 36 per-paper findings extracted from the source corpus
Year Finding Method Journal Conf PMIDs
1995 Lim1 is an essential regulator of the vertebrate head organizer; homozygous null mouse embryos lack anterior head structures, establishing Lim1 as required for head organizer function. Targeted gene deletion in mouse embryonic stem cells; null embryo phenotypic analysis Nature High 7700351
1999 Lim1 is required in both primitive streak-derived tissues (anterior mesendoderm) and visceral endoderm for head formation; Lim1 inactivation in either tissue produces cell non-autonomous head defects, supporting a double-assurance model of sequential signaling. Chimeric embryo generation; tetraploid blastocyst injection; tissue recombination explant assays; Otx2 expression maintenance assay Development High 10529411
2003 A primary function of Lim1 in the early embryo is to enable proper cell movements during gastrulation; Lim1-depleted Xenopus embryos and Lim1-null mouse embryos show failure of gastrulation movements despite correct mesodermal cell identity specification. Paraxial protocadherin (PAPC) expression is lost in nascent mesoderm of Lim1 mutants and exogenous PAPC rescues gastrulation in Xenopus. DEED antisense oligonucleotide depletion in Xenopus; cell transplantation in mice; PAPC rescue experiment Developmental Cell High 12530965
2000 The integrity of both LIM domains (zinc finger motifs) is essential for LIM1 activity in mouse head development; mice homozygous for LIM domain-mutated Lim1 allele phenocopy Lim1-null mice despite appropriate mutant mRNA and protein expression. Targeted mutagenesis of conserved LIM domain zinc finger residues; knock-in mouse generation; phenotypic analysis Genesis High 10862151
2000 OTX2 directly interacts with LIM1 protein via its C-terminal region binding the LIM1 homeodomain; LIM1 enhances OTX2-directed transcription from a P3C reporter element, while HNF-3β represses it. Direct protein-protein interaction assay (co-IP/pull-down); luciferase reporter transcriptional assay Biochemical and Biophysical Research Communications Medium 10623575
2005 Ssdp1 (a cofactor of Ldb1) enhances transcriptional activation through a Lim1-Ldb1 complex and interacts genetically with Lim1 and Ldb1 in head development and body growth; reduced Ssdp1 partially phenocopies Lim1 and Ldb1 mutants. Mouse mutant analysis (headshrinker mutant); transfection-based transcriptional activation assay; genetic interaction (compound mutant analysis) Development High 15857913
2005 Lim1 functions in distinct tissue compartments of the developing metanephros for ureteric bud development and renal vesicle patterning; Lim1-null mice lack kidneys due to failure of nephric duct formation. Conditional knockout using floxed Lim1 allele; tissue-specific Cre drivers; developmental phenotypic analysis Development High 15930111
2005 Lim1 in nephric duct epithelium regulates nephric duct extension and ureteric bud outgrowth; conditional removal in nephric epithelium alters Wnt9b and E-cadherin expression in the nephric duct. Conditional knockout (Pax2-Cre; floxed Lim1); molecular analysis of Pax2, Wnt9b, E-cadherin expression Developmental Biology High 16216236
2003 Lim1 is required cell-autonomously for Müllerian duct epithelium formation; Lim1-null females lack uterus and oviducts despite having ovaries. Lim1 lacZ knock-in; female chimera assay; cell-autonomy determination Development High 14695376
2014 Lhx1 in the Müllerian duct epithelium acts cell-autonomously to maintain ductal progenitor cells for Müllerian duct elongation; loss of Lhx1 in Müllerian duct epithelium causes block in elongation and uterine hypoplasia including loss of endometrium. Wnt7a-Cre conditional knockout; time-lapse imaging; molecular analyses Developmental Biology High 24560999
2007 Lhx1 and Lhx5, together with their cofactor Ldb1, are essential for Purkinje cell differentiation in the developing cerebellum; double-mutant mice lacking both Lhx1 and Lhx5 show severe reduction in Purkinje cell number, phenocopied by Ldb1 targeted inactivation. Double conditional knockout of Lhx1 and Lhx5; Ldb1 conditional knockout; phenotypic and histological analysis PNAS High 17664423
2006 Lhx1 and Lhx5 cell-autonomously maintain Pax2, Pax5, and Pax8 expression in dorsal inhibitory neurons, thereby sustaining GABAergic inhibitory-neurotransmitter identity (Gad1 and Viaat expression) in the dorsal spinal cord. Double knockout of Lhx1 and Lhx5 in mice; immunohistochemical analysis; in situ hybridization Development High 17166926
2007 Lim1 is essential for the correct laminar positioning of retinal horizontal cells; conditional ablation of Lim1 results in ectopic localization of horizontal cells to the inner nuclear layer, with adoption of amacrine-like morphology, while horizontal cell molecular identity is maintained. Conditional ablation of Lim1 in retina; immunofluorescence; morphological and molecular phenotypic analysis Journal of Neuroscience High 18094249
2009 Lhx1 controls axonal trajectory choice in dI2 dorsal spinal interneurons; ectopic Lhx1 expression in dI1 neurons represses Lhx2/9 and imposes caudal projection; Lhx1 and Lhx9 act as a binary switch controlling rostral vs. caudal longitudinal turning of commissural axons. Cell-specific ectopic expression using interneuron-specific enhancers; axonal tracing; immunohistochemistry Neural Development Medium 19545367
2010 Lhx1 coordinates motor neuron soma migration with axon trajectory choice by gating Reelin signaling through transcriptional regulation of Dab1 (a critical Reelin signaling intermediate); Foxp1 and Lhx1 together restrict Eph receptor signals and Dab1 expression in LMC motor neurons. Loss-of-function and gain-of-function of Reelin pathway; Lhx1 conditional knockout; Dab1 expression analysis; motor axon trajectory assays PLOS Biology High 20711475
2014 Lhx1 is essential for terminal differentiation and function of the suprachiasmatic nucleus (SCN); deletion of Lhx1 in developing SCN causes loss of SCN-enriched neuropeptides (including VIP) involved in synchronization, resulting in disorganized circadian activity rhythms while core clock gene rhythms persist. Conditional knockout of Lhx1 in SCN; behavioral circadian rhythm analysis; neuropeptide expression profiling; neuropeptide infusion rescue Cell Reports High 24767996
2014 Lhx1 regulates SCN intercellular coupling by controlling expression of coupling factor genes; loss of Lhx1 in SCN causes rapid desynchronization of individual oscillator neurons demonstrated by ex vivo SCN recordings. Conditional Lhx1 knockout in SCN; ex vivo bioluminescence recordings of SCN; jet lag behavioral paradigm eLife High 25035422
2015 Lhx1 functions with a transcription factor complex (Lhx1/Otx2/Foxa2/Ldb1) to regulate anterior mesendoderm, node, and midline development; ChIP-seq identified Lhx1 binding at enhancers controlling Otx2 and Foxa2 expression and at the Nodal-proximal epiblast enhancer; Lhx1 is directly activated by Smad4/Eomes downstream of Nodal signaling. Conditional inactivation; transcriptional profiling; ChIP-seq; proteomic complex identification (co-IP/mass spectrometry); genetic epistasis Genes & Development High 26494787
2014 OTX2 activates Lhx1 expression in the anterior mesendoderm by directly binding to two conserved regulatory regions in the Lhx1 locus; compound Otx2;Lhx1 mutants show abnormal head development, establishing functional intersection of these two factors. Tissue-specific conditional Otx2 knockout; ChIP-qPCR; luciferase assays; RT-qPCR; compound mutant analysis Development High 25231759
1999 Pax-8 and Xlim-1/Lhx1 synergistically direct embryonic kidney (pronephros) formation in Xenopus; co-expression of both genes results in up to 5-fold greater pronephric complexity and ectopic tubules, exceeding additive effects. mRNA injection in Xenopus embryos; ectopic co-expression; morphological and molecular analysis of pronephric development Developmental Biology High 10491256
2009 miR-30 family regulates Xlim1/Lhx1 post-transcriptionally via two binding sites in its 3'UTR; loss of miR-30a-5p maintains high Xlim1/Lhx1 levels and causes delayed terminal differentiation of the pronephros. miRNA knockdown (Dicer/Dgcr8 morpholinos); miR-30a-5p morpholino; reporter assays with 3'UTR binding site mutations; in situ hybridization Development High 19906860
2002 Regulation of the Lim-1 gene in response to activin/nodal signaling is mediated through FAST-1/FoxH1 and Smad4 binding sites in the first intron activin response element; FAST-1/FoxH1 function is required for activin-dependent Xlim-1 expression. Reporter constructs with mutated FAST-1/FoxH1 sites; FAST-1/FoxH1 protein chimeras; comparative analysis in zebrafish Developmental Dynamics High 12454922
2011 Lhx1 is required for specification of the entire renal progenitor cell field from intermediate mesoderm; a constitutively active form of Lhx1 expands the kidney field during specification, and this capacity diminishes as organogenesis transitions to the morphogenesis stage. Constitutively active Lhx1 overexpression in Xenopus; lhx1 morpholino depletion; explant culture kidney induction system PLoS One High 21526205
2013 A core transcriptional network of Pax2/8, Gata3, and Lim1 directly regulates downstream transcriptional regulators and effector genes including Nephronectin (Npnt) and Plac8 in the pro/mesonephros gene regulatory network. Genetic analysis of conditional knockouts; ChIP/promoter analysis; molecular expression profiling Developmental Biology Medium 23920117
2017 Lhx1/5 in postnatal Purkinje cells transcriptionally activate Espin (an F-actin cytoskeleton regulator); loss of both Lhx1 and Lhx5 reduces Espin expression, causing F-actin mislocalization, impaired dendritogenesis, and dendritic spine maturation defects that can be rescued by Espin overexpression. Postnatal conditional double knockout; Espin rescue overexpression; electrophysiology; morphological analysis Nature Communications High 28516904
2016 Lhx1 drives VIP expression in the SCN and regulates a VIP-independent transcriptional network; Lhx1-deficient SCN loses circadian resistance to fever/temperature and acute light control of sleep in a VIP-independent manner; two separable transcriptional networks downstream of LHX1 were mapped. Conditional Lhx1 knockout; behavioral and temperature circadian rhythm analysis; cultured SCN heat application; transcriptional network mapping Current Biology High 28017605
2018 The Lhx1-Ldb1 complex interacts with Furry (Fry) in Xenopus pronephric progenitors; tandem-affinity purification identified Fryl/Fry as Lhx1 interacting proteins; Fry and Lhx1 synergize to regulate microRNA clusters that influence kidney field specification. Tandem-affinity purification; Co-IP; morpholino knockdown of fry; synergy assay; microRNA candidate identification Scientific Reports Medium 30375416
2019 LHX1 interacts with Islet-1 (Isl1) in pancreatic β-cells and occupies a chromatin domain co-occupied by Isl1 and Ldb1 at the Glp1R locus; pancreatic Lhx1 knockout mice have elevated fasting blood glucose, altered glucose tolerance, reduced Glp1R expression, and a dampened Glp1 response. Co-immunoprecipitation from β-cell extracts; ChIP; siRNA knockdown; pancreas-specific Lhx1 conditional knockout; metabolic phenotyping American Journal of Physiology Endocrinology and Metabolism High 30620636
2019 LHX1 transcriptionally regulates POA-derived cortical interneuron survival and directional migration by controlling subtype-specific expression of Eph/ephrin guidance receptors. LHX1 conditional knockout in POA interneurons; migration assays; gene expression analysis; layer distribution analysis Cerebral Cortex Medium 29912395
2020 LHX1 expression in embryonic cortical interneurons (POA-derived) is regulated by DNMT1 through non-canonical modulation of histone methylation and acetylation marks at the Lhx1 locus. DNMT1 manipulation; histone methylation and acetylation profiling; gene expression analysis in interneurons Epigenetics Medium 32441560
2016 Early Müllerian duct specification requires sequential BMP/Pax2 signaling followed by FGF/Lim1 signaling; BMP/Pax2 induces Lim1 expression (a hallmark of MD specification), and FGF/ERK and Wolffian duct-derived signals are also required for Lim1 induction; FGF/Lim1 axis then drives epithelial invagination via apical accumulation of phospho-myosin light chain. MD-specific gene manipulation in chicken embryos; signaling pathway inhibition; phospho-myosin light chain imaging Development High 27578782
2023 LHX1-DT lncRNA (transcribed from a bidirectional promoter of LHX1) physically interacts with PHF6 during mesoderm commitment and promotes exchange of histone H2A.Z for canonical H2A at the LHX1 promoter, thereby activating LHX1 transcription during cardiomyocyte differentiation. LHX1-DT knockout in hESCs; LHX1 rescue overexpression; RNA-protein interaction assay; chromatin histone variant ChIP; cardiomyocyte differentiation assays iScience Medium 37942009
2024 LHX1 directly binds the IRE-1 promoter and activates its transcription, thereby promoting endoplasmic reticulum stress via the IRE-1/XBP1/CHOP pathway in trophoblast cells; LHX1 knockdown reduces IRE-1 expression and ameliorates preterm birth symptoms in a mouse model. LHX1 promoter binding assay (ChIP); IRE-1 overexpression rescue; LHX1 siRNA knockdown; mouse in vivo model Heliyon Medium 39027525
2000 Lim1 activity is required for intermediate mesoderm differentiation; in Lim1-null embryos the intermediate mesoderm is disorganized with diminished PAX2 and Hoxb6-lacZ expression; transplantation experiments show Lim1 is not required for allocation of cells to intermediate mesoderm but is needed for their full differentiation. Cell transplantation from Lim1-null to wild-type host embryos; Hoxb6-lacZ transgene expression analysis; immunostaining for PAX2 Developmental Biology High 10864462
2010 Lhx1 influences primordial germ cell (PGC) localization by modulating Ifitm1-mediated repulsive activity; conditional Lhx1 inactivation causes early exit of PGCs from the gut accompanied by failure to maintain Ifitm1 expression in surrounding mesoderm. Conditional Lhx1 inactivation in epiblast derivatives; PGC tracking; Ifitm1 expression analysis Developmental Dynamics Medium 20845430
2025 LHX1, in complex with LDB1, directly binds the STING promoter to repress transcription via H3K9me3 deposition, thereby blocking SASP activation; LHX1-LDB1 complex disruption by engineered peptides re-activates STING signaling and suppresses tumor growth in HNSCC. ChIP for LHX1/LDB1 at STING promoter; H3K9me3 chromatin analysis; LHX1 KO; engineered peptide disruption of LHX1-LDB1 complex; xenograft tumor models International Journal of Biological Sciences Medium 41608636

Source papers

Stage 0 corpus · 100 papers · ranked by NIH iCite citations
Year Title Journal Citations PMID
1995 Requirement for Lim1 in head-organizer function. Nature 653 7700351
2005 Distinct and sequential tissue-specific activities of the LIM-class homeobox gene Lim1 for tubular morphogenesis during kidney development. Development (Cambridge, England) 274 15930111
1994 Embryonic expression of Lim-1, the mouse homolog of Xenopus Xlim-1, suggests a role in lateral mesoderm differentiation and neurogenesis. Developmental biology 204 7904966
1994 Expression patterns of the murine LIM class homeobox gene lim1 in the developing brain and excretory system. Developmental dynamics : an official publication of the American Association of Anatomists 153 7909459
1995 Nodal induces ectopic goosecoid and lim1 expression and axis duplication in zebrafish. Development (Cambridge, England) 152 7768180
2003 Requirement of Lim1 for female reproductive tract development. Development (Cambridge, England) 148 14695376
1999 Lim1 is required in both primitive streak-derived tissues and visceral endoderm for head formation in the mouse. Development (Cambridge, England) 139 10529411
2007 LIM-homeodomain proteins Lhx1 and Lhx5, and their cofactor Ldb1, control Purkinje cell differentiation in the developing cerebellum. Proceedings of the National Academy of Sciences of the United States of America 123 17664423
1999 Synergism between Pax-8 and lim-1 in embryonic kidney development. Developmental biology 122 10491256
2009 The miR-30 miRNA family regulates Xenopus pronephros development and targets the transcription factor Xlim1/Lhx1. Development (Cambridge, England) 114 19906860
2006 Lhx1 and Lhx5 maintain the inhibitory-neurotransmitter status of interneurons in the dorsal spinal cord. Development (Cambridge, England) 114 17166926
2013 Transcription factors lhx1/5-1 and pitx are required for the maintenance and regeneration of serotonergic neurons in planarians. Development (Cambridge, England) 109 23903188
2000 Lim1 activity is required for intermediate mesoderm differentiation in the mouse embryo. Developmental biology 87 10864462
2003 Conserved requirement of Lim1 function for cell movements during gastrulation. Developmental cell 86 12530965
2014 Hydroxyl radical recycling in isoprene oxidation driven by hydrogen bonding and hydrogen tunneling: the upgraded LIM1 mechanism. The journal of physical chemistry. A 85 25010574
2007 Lim1 is essential for the correct laminar positioning of retinal horizontal cells. The Journal of neuroscience : the official journal of the Society for Neuroscience 85 18094249
2015 Lhx1 functions together with Otx2, Foxa2, and Ldb1 to govern anterior mesendoderm, node, and midline development. Genes & development 84 26494787
2014 Lhx1 controls terminal differentiation and circadian function of the suprachiasmatic nucleus. Cell reports 84 24767996
2005 Lim 1 is required for nephric duct extension and ureteric bud morphogenesis. Developmental biology 81 16216236
2009 Transcriptional control of axonal guidance and sorting in dorsal interneurons by the Lim-HD proteins Lhx9 and Lhx1. Neural development 79 19545367
2010 Foxp1 and lhx1 coordinate motor neuron migration with axon trajectory choice by gating Reelin signalling. PLoS biology 76 20711475
2012 Frame shift mutation of LHX1 is associated with Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome. Human reproduction (Oxford, England) 75 22740494
2013 TBX6, LHX1 and copy number variations in the complex genetics of Müllerian aplasia. Orphanet journal of rare diseases 71 23954021
2014 Lhx1 maintains synchrony among circadian oscillator neurons of the SCN. eLife 65 25035422
2005 Ssdp1 regulates head morphogenesis of mouse embryos by activating the Lim1-Ldb1 complex. Development (Cambridge, England) 65 15857913
2005 Retinaldehyde dehydrogenase 2 and Hoxc8 are required in the murine brachial spinal cord for the specification of Lim1+ motoneurons and the correct distribution of Islet1+ motoneurons. Development (Cambridge, England) 64 15753214
2010 Similarities and differences in the forebrain expression of Lhx1 and Lhx5 between chicken and mouse: Insights for understanding telencephalic development and evolution. The Journal of comparative neurology 61 20589911
2004 Regionalization of cell fates and cell movement in the endoderm of the mouse gastrula and the impact of loss of Lhx1(Lim1) function. Developmental biology 60 15355796
2006 Early identification of retinal subtypes in the developing, pre-laminated chick retina using the transcription factors Prox1, Lim1, Ap2alpha, Pax6, Isl1, Isl2, Lim3 and Chx10. European journal of histochemistry : EJH 59 16864127
1997 lim6, a novel LIM homeobox gene in the zebrafish: comparison of its expression pattern with lim1. Developmental dynamics : an official publication of the American Association of Anatomists 59 9264264
2000 Solution structure of the focal adhesion adaptor PINCH LIM1 domain and characterization of its interaction with the integrin-linked kinase ankyrin repeat domain. The Journal of biological chemistry 58 11078733
2000 Specific expression of the LIM/homeodomain protein Lim-1 in horizontal cells during retinogenesis. Developmental dynamics : an official publication of the American Association of Anatomists 57 10741426
2000 OTX2 directly interacts with LIM1 and HNF-3beta. Biochemical and biophysical research communications 55 10623575
2017 Tissue-Specific Gene Inactivation in Xenopus laevis: Knockout of lhx1 in the Kidney with CRISPR/Cas9. Genetics 54 29187504
2014 Lhx1 is required in Müllerian duct epithelium for uterine development. Developmental biology 51 24560999
2013 A core transcriptional network composed of Pax2/8, Gata3 and Lim1 regulates key players of pro/mesonephros morphogenesis. Developmental biology 51 23920117
2000 Requirements of Lim1, a Drosophila LIM-homeobox gene, for normal leg and antennal development. Development (Cambridge, England) 50 11003832
2000 Proximal-distal leg development in Drosophila requires the apterous gene and the Lim1 homologue dlim1. Development (Cambridge, England) 42 11076760
1998 Expression pattern of the rat Lim-1 homeobox gene suggests a dual role during kidney development. The International journal of developmental biology 40 9496787
2011 Lhx1 is required for specification of the renal progenitor cell field. PloS one 38 21526205
2010 LIM-class homeobox gene Lim1, a novel oncogene in human renal cell carcinoma. Oncogene 37 21132009
2001 Defects of the body plan of mutant embryos lacking Lim1, Otx2 or Hnf3beta activity. The International journal of developmental biology 36 11291865
2017 Lhx1/5 control dendritogenesis and spine morphogenesis of Purkinje cells via regulation of Espin. Nature communications 32 28516904
2016 An LHX1-Regulated Transcriptional Network Controls Sleep/Wake Coupling and Thermal Resistance of the Central Circadian Clockworks. Current biology : CB 32 28017605
2016 Early formation of the Müllerian duct is regulated by sequential actions of BMP/Pax2 and FGF/Lim1 signaling. Development (Cambridge, England) 31 27578782
2004 Chip-mediated partnerships of the homeodomain proteins Bar and Aristaless with the LIM-HOM proteins Apterous and Lim1 regulate distal leg development. Development (Cambridge, England) 30 15175252
1996 The LIM homeodomain protein Lim-1 is widely expressed in neural, neural crest and mesoderm derivatives in vertebrate development. The International journal of developmental biology 30 8793615
2014 Head formation: OTX2 regulates Dkk1 and Lhx1 activity in the anterior mesendoderm. Development (Cambridge, England) 29 25231759
2002 Regulation of the Lim-1 gene is mediated through conserved FAST-1/FoxH1 sites in the first intron. Developmental dynamics : an official publication of the American Association of Anatomists 29 12454922
2009 Evolutionary origins of blastoporal expression and organizer activity of the vertebrate gastrula organizer gene lhx1 and its ancient metazoan paralog lhx3. Development (Cambridge, England) 26 19439497
2007 Temporal and spatial expression of transcription factors FoxN4, Ptf1a, Prox1, Isl1 and Lim1 mRNA in the developing chick retina. Gene expression patterns : GEP 26 18006384
2011 The nephrogenic potential of the transcription factors osr1, osr2, hnf1b, lhx1 and pax8 assessed in Xenopus animal caps. BMC developmental biology 25 21281489
2018 The Lim1 oncogene as a new therapeutic target for metastatic human renal cell carcinoma. Oncogene 20 30076415
1999 oto is a homeotic locus with a role in anteroposterior development that is partially redundant with Lim1. Development (Cambridge, England) 20 10529425
2013 Heterogenic final cell cycle by chicken retinal Lim1 horizontal progenitor cells leads to heteroploid cells with a remaining replicated genome. PloS one 19 23527113
2010 Loss of Lhx1 activity impacts on the localization of primordial germ cells in the mouse. Developmental dynamics : an official publication of the American Association of Anatomists 19 20845430
2013 The expression of LIM-homeobox genes, Lhx1 and Lhx5, in the forebrain is essential for neural retina differentiation. Development, growth & differentiation 18 24024588
2019 The Transcription Factor LHX1 Regulates the Survival and Directed Migration of POA-derived Cortical Interneurons. Cerebral cortex (New York, N.Y. : 1991) 17 29912395
2012 LHX1 mutation screening in 96 patients with müllerian duct abnormalities. Fertility and sterility 17 22217964
2007 Search for the sex-determining switch in monotremes: mapping WT1, SF1, LHX1, LHX2, FGF9, WNT4, RSPO1 and GATA4 in platypus. Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology 17 17717721
2000 Requirement of LIM domains for LIM1 function in mouse head development. Genesis (New York, N.Y. : 2000) 16 10862151
2019 Mechanistic insights from the LHX1-driven molecular network in building the embryonic head. Development, growth & differentiation 15 31111476
2018 Actin binding LIM 1 (abLIM1) negatively controls osteoclastogenesis by regulating cell migration and fusion. Journal of cellular physiology 15 29904924
2014 The terminal basal mitosis of chicken retinal Lim1 horizontal cells is not sensitive to cisplatin-induced cell cycle arrest. Cell cycle (Georgetown, Tex.) 15 25483080
2020 Neuronal Lhx1 expression is regulated by DNMT1-dependent modulation of histone marks. Epigenetics 14 32441560
2010 Comparison of Lim1 expression in embryos of frogs with different modes of reproduction. The International journal of developmental biology 14 19876816
2022 LHX1 as a potential biomarker regulates EMT induction and cellular behaviors in uterine corpus endometrial carcinoma. Clinics (Sao Paulo, Brazil) 13 36116266
1999 Lim1 related homeobox gene (HpLim1) expressed in sea urchin embryos. Development, growth & differentiation 13 10400389
2019 The islet-expressed Lhx1 transcription factor interacts with Islet-1 and contributes to glucose homeostasis. American journal of physiology. Endocrinology and metabolism 12 30620636
2017 Identification and functional analysis of a novel LHX1 mutation associated with congenital absence of the uterus and vagina. Oncotarget 12 28061432
2013 The heterogenic final cell cycle of chicken retinal Lim1 horizontal cells is not regulated by the DNA damage response pathway. Cell cycle (Georgetown, Tex.) 12 24247150
2012 Lim1/LIM1 is expressed in developing and adult mouse and human endometrium. Histochemistry and cell biology 12 22231913
2011 Lim1, an embryonal transcription factor, is absent in multicystic renal dysplasia, but reactivated in nephroblastomas. Pathobiology : journal of immunopathology, molecular and cellular biology 12 21778788
1996 The exon-intron structure of human LHX1 gene. Biochemical and biophysical research communications 12 8954926
2019 Effect of Sodium Butyrate on LHX1 mRNA Expression as a Transcription Factor of HDAC8 in Human Colorectal Cancer Cell Lines. Avicenna journal of medical biotechnology 11 31908740
2012 Lhx1 in the proximal region of the optic vesicle permits neural retina development in the chicken. Biology open 11 23213388
2008 Expression dynamics of the LIM-homeobox genes, Lhx1 and Lhx9, in the diencephalon during chick development. The International journal of developmental biology 11 18033670
2014 Preformed Wolffian duct regulates Müllerian duct elongation independently of canonical Wnt signaling or Lhx1 expression. The International journal of developmental biology 9 25896202
2013 Expression of the Lhx genes apterous and lim1 in an errant polychaete: implications for bilaterian appendage evolution, neural development, and muscle diversification. EvoDevo 9 23369627
2025 NKX2-5/LHX1 and UHRF1 Establishing a Positive Feedback Regulatory Circuitry Drives Esophageal Squamous Cell Carcinoma through Epigenetic Dysregulation. Advanced science (Weinheim, Baden-Wurttemberg, Germany) 8 40307990
2020 Effect of sodium butyrate on HDAC8 mRNA expression in colorectal cancer cell lines and molecular docking study of LHX1 - sodium butyrate interaction. EXCLI journal 8 32788915
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2017 The PET and LIM1-2 domains of testin contribute to intramolecular and homodimeric interactions. PloS one 7 28542564
2015 The p53 co-activator Zac1 neither induces cell cycle arrest nor apoptosis in chicken Lim1 horizontal progenitor cells. Cell death discovery 7 27551456
2023 Long non-coding RNA LHX1-DT regulates cardiomyocyte differentiation through H2A.Z-mediated LHX1 transcriptional activation. iScience 6 37942009
2018 The Lhx1-Ldb1 complex interacts with Furry to regulate microRNA expression during pronephric kidney development. Scientific reports 6 30375416
2025 Ferroptosis contributed to endoplasmic reticulum stress in preterm birth by targeting LHX1 and IRE-1. Cellular signalling 5 40157471
2022 The impact of glutamine deprivation on the expression of MEIS3, SPAG4, LHX1, LHX2, and LHX6 genes in ERN1 knockdown U87 glioma cells. Endocrine regulations 4 35180817
2011 ¹H, ¹⁵N and ¹³C assignments of an intramolecular LMO4-LIM1/CtIP complex. Biomolecular NMR assignments 4 21643835
2024 LIM homeobox 1 (LHX1) induces endoplasmic reticulum stress and promotes preterm birth. Heliyon 3 39027525
2023 LIM1 contributes to the malignant potential of endometrial cancer. Frontiers in oncology 3 36969081
2015 P19 Cells Overexpressing Lhx1 Differentiate into the Definitive Endoderm by Recapitulating an Embryonic Developmental Pathway. Yonago acta medica 3 26190893
2000 Frog lim-1-like protein is expressed predominantly in the nervous tissue, gonads, and early embryos of the bivalve mollusc Mytilus galloprovincialis. The Biological bulletin 3 10975640
2024 HNF1β, LHX1, and GGNBP2 deletion contributed to kidney and reproductive dysfunction in 17q12 deletion syndrome: evidence from a case report. Frontiers in genetics 2 39221224
2024 Severe ischemia-reperfusion injury induces epigenetic inactivation of LHX1 in kidney progenitor cells after kidney transplantation. American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons 2 39521058
2025 m6A reader IGF2BP2-stabilized lncRNA LHX1-DT inhibits renal cell carcinoma (RCC) cell proliferation and invasion by sponging miR-590-5p. NPJ precision oncology 1 40527909
2024 Two distinct functions of Lim1 in the Drosophila antenna. microPublication biology 1 38957438
2026 Targeting the LHX1-LDB1 Complex Restores STING-dependent Senescence Surveillance and Inhibits Head and Neck Cancer Progression. International journal of biological sciences 0 41608636
2025 Behavioral adaptation to warm conditions via Lim1-mediated acceleration of neuronal clocks. Nature neuroscience 0 41420118
2017 Xenopus pitx3 target genes lhx1 and xnr5 are identified using a novel three-fluor flow cytometry-based analysis of promoter activation and repression. Developmental dynamics : an official publication of the American Association of Anatomists 0 28598520