| 1998 |
Hoxc13 null mice (generated by gene targeting) completely lack external hair (alopecia), have brittle hair, and show defects in nails and filiform papillae, establishing Hoxc13 as essential for hair, nail, and filiform papilla development. |
Gene targeting / loss-of-function knockout mouse with phenotypic readout |
Genes & development |
High |
9420327
|
| 2001 |
Transgenic overexpression of Hoxc13 in differentiating keratinocytes causes alopecia and downregulation of a novel cluster of hair keratin-associated protein (KAP) genes on mouse chromosome 16; Hoxc13/lacZ reporter analysis indicates negative autoregulatory feedback control of Hoxc13 expression levels. |
Transgenic overexpression with large-scale differential gene expression analysis (DNA chip) and reporter gene assay |
Development (Cambridge, England) |
High |
11290294
|
| 2004 |
HOXC13 directly binds to cognate sites in the promoters of Krtap16 KAP genes via sequence-specific protein-DNA interaction, supporting a regulatory relationship between Hoxc13 and these hair structural genes. |
Electrophoretic mobility shift assay (EMSA) / DNA binding assay |
The Journal of biological chemistry |
Medium |
15385554
|
| 2005 |
HOXC13 binds at least one cognate site in the Crisp1 promoter (confirmed by EMSA), and Crisp1 is downregulated >20-fold in Hoxc13-overexpressing mice, establishing Crisp1 as a downstream regulatory target of Hoxc13 in the hair medulla. |
DNA chip expression analysis and EMSA (electrophoretic mobility shift assay) |
The journal of investigative dermatology. Symposium proceedings |
Medium |
16382673
|
| 2005 |
HOXC13-controlled activation of early hair keratin genes hHa5 and hHa2 in hair follicles does not involve TALE proteins MEIS1, MEIS2, PREP1, or PREP2 as cofactors, because these proteins are exclusively cytoplasmically localized in the relevant follicle compartments where HOXC13 is nuclear. |
RT-PCR for TALE transcripts in hair follicle; immunolocalization of TALE proteins and HOXC13 in hair follicle sections |
Archives of dermatological research |
Medium |
16292560
|
| 2006 |
HOXC13 directly binds Foxq1 gene regulatory regions and activates its transcription; Foxq1 and downstream medulla-specific genes are downregulated upon Hoxc13 overexpression, placing Hoxc13 upstream of Foxq1 in a pathway controlling hair medulla differentiation. |
Gene array analysis, co-transfection reporter assay, chromatin immunoprecipitation (ChIP), DNA binding studies |
The Journal of biological chemistry |
High |
16835220
|
| 2007 |
HOXC13 physically interacts with the ETS domain of PU.1 (SPI1) through a region encompassing the C-terminal part of the homeodomain and the most C-terminal region of HOXC13, and enhances PU.1 transcriptional activity; enforced HOXC13 expression in MEL cells suppresses beta-globin expression and inhibits erythroid differentiation. |
Co-immunoprecipitation / protein interaction mapping, transcriptional reporter assays, enforced expression in MEL cells with beta-globin readout |
Experimental cell research |
Medium |
18076876
|
| 2009 |
HOXC13 is a member of human DNA replication complexes: it co-localizes with replication foci in early-S-phase cells (driven by its homeodomain), binds the lamin B2 replication origin and origins near TOP1 and MCM4 genes in asynchronously growing cells by ChIP, but not in G0 resting cells. |
Fluorescent fusion-protein live imaging, ChIP analysis at specific replication origins |
Cell cycle (Georgetown, Tex.) |
Medium |
19182517
|
| 2009 |
HOXC13 is transcriptionally activated by estrogen (17β-estradiol) via estrogen-response elements (ERE1, ERE2) in its promoter; ERα and ERβ are required for this activation; MLL1-MLL4 histone methylases are recruited to the HOXC13 promoter in an estrogen-dependent, ER-dependent manner, and MLL3 knockdown suppresses E2-induced HOXC13 activation. |
ChIP assay, knockdown (siRNA) of ERα, ERβ, MLL1-MLL4, promoter reporter assays |
The FEBS journal |
High |
19922474
|
| 2010 |
HOXC13 directly activates Foxn1 transcription in hair follicles; Foxn1 is significantly downregulated in Hoxc13-null mice; co-transfection and ChIP assays confirm direct transcriptional control of Foxn1 by HOXC13, placing HOXC13 upstream of FOXN1 in a regulatory cascade controlling terminal differentiation markers in keratinocytes. |
DNA microarray, co-transfection reporter assay, ChIP, histological comparison of Hoxc13- and Foxn1-mutant mice |
The Journal of investigative dermatology |
High |
21191399
|
| 2012 |
Loss-of-function mutations in HOXC13 (nonsense mutation c.390C>A / p.Tyr130* and homozygous microdeletion of exon 1) cause autosomal-recessive pure hair and nail ectodermal dysplasia in humans; dramatically reduced mRNA levels and nearly absent protein staining in hair follicles indicate nonsense-mediated mRNA decay as mechanism; four known HOXC13 target genes are markedly decreased in affected skin. |
Whole-exome sequencing, RT-PCR expression analysis, protein immunostaining in patient skin biopsies |
American journal of human genetics |
High |
23063621
|
| 2012 |
Antisense oligonucleotide-mediated knockdown of HOXC13 induces cell cycle arrest (G1) and apoptosis in colon cancer cells, and reduces cyclin expression; overexpression of HOXC13 induces 3D colony formation in soft agar, demonstrating roles in cell proliferation and survival. |
Antisense oligonucleotide knockdown, cell viability assays, soft agar colony formation assay, flow cytometry |
RSC advances |
Medium |
23495364
|
| 2013 |
A homozygous frameshift mutation in HOXC13 (c.355delC; p.Leu119Trpfs*20) causes protein mislocalization to the cytoplasm and failure to upregulate target gene promoter activities, establishing that correct nuclear localization of HOXC13 is required for its transcriptional function. |
Sequencing, expression studies in cultured cells (localization and promoter reporter assay of mutant vs wild-type HOXC13) |
Human mutation |
Medium |
23315978
|
| 2015 |
YAP (Hippo pathway transcriptional coactivator) regulates Hoxc13 expression in oral, dental, and skin epithelial tissues; ChIP assay indicates YAP regulates Hoxc13 through TEAD transcription factors; Hoxc13 is functionally involved in YAP-regulated epithelial progenitor cell proliferation (sphere formation assay). |
RNA-Seq, real-time PCR, in situ hybridization, ChIP assay, sphere formation assay in Yap conditional KO and transgenic mice |
Molecular and cellular biology |
Medium |
25691658
|
| 2015 |
Hoxc13 regulates the hair cycle: shRNA-mediated knockdown of Hoxc13 promotes premature catagen entry (shortened hair, increased apoptosis, inhibited proliferation), while recombinant Hoxc13 polypeptide injection prolongs anagen; mechanistically, p-Smad2 (active TGF-β1 signaling) is upregulated by Hoxc13 knockdown and downregulated by Hoxc13 injection, suggesting Hoxc13 blocks anagen-to-catagen transition by inhibiting TGF-β1 signaling. |
shRNA knockdown in vivo, recombinant polypeptide injection, TUNEL assay, proliferation markers, immunostaining for p-Smad2 |
Cell and tissue research |
Medium |
26553656
|
| 2015 |
SOAT1 (sterol O-acyltransferase 1) is co-expressed with HOXC13 in the medulla of hair follicles; SOAT1 is absent from the defective medulla of Hoxc13-null mice; ChIP assay shows HOXC13 binding to the Soat1 upstream control region, supporting Soat1 as a downstream regulatory target of HOXC13. |
Immunohistochemistry, DNA microarray (prior data), ChIP assay |
Experimental and molecular pathology |
Medium |
26321246
|
| 2016 |
HOXC13 and SPI1 (PU.1) synergistically and dose-dependently activate transcription of the proto-oncogene Zfp521 through specific regions of the Zfp521 promoter; this regulatory relationship is supported in vivo in transgenic mice overexpressing Hoxc13 in fetal liver, where Zfp521 expression correlates with Hoxc13 levels. |
Co-transfection reporter assay, promoter deletion analysis, transgenic mouse expression correlation |
Genesis (New York, N.Y. : 2000) |
Medium |
27506447
|
| 2017 |
HOXC13 directly represses transcription of CASP3 by binding to the CASP3 promoter region (ChIP); HOXC13 knockdown upregulates CASP3 and induces apoptosis in ESCC cells; miR-503 directly targets the HOXC13 3'UTR to downregulate HOXC13. |
ChIP assay, knockdown experiments, luciferase reporter (miR-503 targeting), apoptosis assays |
Cancer science |
Medium |
29168599
|
| 2017 |
HOXC13 knockdown induces G1-phase arrest in lung adenocarcinoma cells by downregulating CCND1 and CCNE1; conversely, HOXC13 overexpression promotes G1-to-S transition by upregulating CCND1 and CCNE1; miR-141 directly targets the HOXC13 3'UTR to suppress its expression. |
siRNA knockdown, overexpression, cell cycle analysis (flow cytometry), luciferase 3'UTR reporter assay |
American journal of cancer research |
Medium |
28979806
|
| 2018 |
HOXC13 regulates keratin gene expression differentially: in cashmere goat dermal papilla cells, HOXC13 upregulates promoter activity of KRT84 and KRT38 but downregulates promoter activity of KRT1 and KRT2; two SNPs in the HOXC13 homeodomain (c.812A>G and c.929A>C) abolish its regulatory function on keratins without altering protein expression; HOXC13 negatively auto-regulates its own promoter; LEF1 positively regulates HOXC13 promoter activity. |
Dual-luciferase reporter assay in HEK293T and dermal papilla cells, promoter-GFP overexpression system, site-directed mutagenesis (SNP analysis) |
BMC genomics |
Medium |
30139327
|
| 2010 |
BMI-1 knockdown (via shRNA) in HeLa cells leads to significant upregulation of HOXC13 mRNA, indicating that BMI-1 (Polycomb group) transcriptionally represses HOXC13 expression. |
shRNA-mediated knockdown of BMI-1, RT-PCR for HOXC13 mRNA |
Medical oncology (Northwood, London, England) |
Low |
20661663
|
| 2021 |
In a mouse model of cerebral ischemia/reperfusion, LOC102640519 positively regulates HOXC13 expression (confirmed by ChIP assay showing LOC102640519's regulation of HOXC13), and elevated HOXC13 in turn negatively regulates ZO-1, Occludin, and Claudin-5 expression (confirmed by luciferase reporter and RNA pulldown), contributing to blood-brain-barrier disruption. |
ChIP assay, luciferase reporter assay, RNA pulldown, FISH, Western blot in MCAO mouse model and OGD/R cell model |
Experimental cell research |
Low |
29842876
|
| 2023 |
Silencing HOXC13 in prostate cancer cells (22RV1 and DU145) induces DNA damage and activates the cGAS/STING/IRF3 pathway, upregulating IFN-β, CCL2, CCL5, and CXCL10 transcription; high HOXC13 expression suppresses γδ T cell and plasma cell infiltration and recruits M2 macrophages. |
siRNA knockdown, DNA damage assays, cGAS/STING pathway activation markers, immune infiltration analysis (CIBERSORT), qRT-PCR for immune factors |
Journal of translational medicine |
Medium |
38057852
|
| 2023 |
HOXC13 directly binds the TIMM13 promoter and drives its transcription in osteosarcoma cells; HOXC13 silencing reduces TIMM13 expression, causing mitochondrial dysfunction (depolarization, ROS, ATP depletion, lipid peroxidation) and inhibiting Akt-mTOR signaling, proliferation, and migration. |
ChIP, HOXC13 silencing with TIMM13 expression readout, TIMM13 KO xenograft model, mitochondrial function assays, Akt-mTOR pathway markers |
Cell death & disease |
Medium |
37407582
|
| 2023 |
HOXC13 positively regulates DNMT3A transcription in breast cancer cells (predicted by JASPAR database and confirmed by functional assays); HOXC13 knockdown reduces proliferation, migration, invasion, EMT, and glycolysis in BC cells. |
JASPAR binding site prediction, cell transfection (knockdown/OE), CCK-8, flow cytometry, Transwell, XF96 extracellular flux analyzer |
Experimental and therapeutic medicine |
Low |
37614427
|
| 2023 |
ChIP-Seq in rabbit dermal papilla cells overexpressing HOXC13 identifies 9,670 genomic binding peaks; HOXC13 binds the PRKACB promoter region (−1596 to −1107 bp) and inhibits PRKACB transcription (confirmed by dual-luciferase reporter assay); PRKACB overexpression modulates BCL2, WNT2, LEF1, and SFRP2, inhibits DPC proliferation, and promotes apoptosis. |
ChIP-Seq, dual-luciferase reporter assay, RT-qPCR, CCK-8, flow cytometry |
Gene |
Medium |
38381512
|
| 2024 |
HOXC13 is required for the stable maintenance of HPV16, HPV52, and HPV58 genomes in keratinocytes; CRISPR-Cas9 knockout of HOXC13 causes progressive loss of these viral genome copy numbers over passages, whereas HPV18 genome stability is HOXC13-independent. |
CRISPR-Cas9 KO of HOXC13 in NIKS cells, transfection of HPV genomes, quantitative copy number monitoring over cell passages |
Virology |
Medium |
38914027
|
| 2024 |
Hoxc13 is required for the expression of hair keratin homologs in the cornified claws of Xenopus frogs; hoxc13 deletion abolishes hair keratin homolog expression and abrogates cornified claw development; Hoxc13 binding sites are conserved in the promoters of these keratin genes across amphibians and mammals, indicating an ancestral evolutionary role. |
CRISPR/Cas9 knockout of hoxc13 in X. tropicalis, gene expression analysis, promoter binding site conservation analysis |
Nature communications |
High |
38499530
|
| 2024 |
A missense variant p.Arg311Trp in the homeobox domain of HOXC13 causes PHNED by decreasing HOXC13 protein stability (rather than altering DNA-binding affinity), as revealed by in vitro overexpression assays and computational structural modeling showing loss of interhelical connection between Arg311 (α-helix 3) and Glu276 (α-helix 1). |
In vitro overexpression assay (protein stability), in silico structural prediction, comparison with previously reported variants |
Human mutation |
Low |
40225922
|
| 2021 |
In Hoxc13-null mice, expression of Foxn1, Krt85, and Krt35 is decreased, confirming these genes as downstream targets of HOXC13 in hair follicle differentiation; Hoxc13-null pigs show similar reductions in Foxn1, Krt85, and Krt35 expression, with absent normal hair and reduced/disarrayed follicles. |
CRISPR/Cas9 knockout pig generation, RT-PCR for target gene expression, histological analysis |
Human molecular genetics |
Medium |
28011715
|
| 2024 |
RHOXF2 physically interacts with HOXC13 (confirmed by co-immunoprecipitation and GST pulldown); RHOXF2 knockdown suppresses HOXC13 expression; HOXC13 overexpression rescues the effects of RHOXF2 knockdown on TNBC cell proliferation, invasion, and Wnt2/β-catenin pathway activity. |
Co-immunoprecipitation, GST pulldown, overexpression/knockdown with rescue experiment, Wnt pathway markers |
Cellular signalling |
Medium |
38697448
|