| 2002 |
FOXP4 (mouse Foxp4) was identified as a new member of the Foxp subfamily of winged-helix transcription factors, encoding a 685-amino-acid protein similar to Foxp1 and Foxp2, expressed in pulmonary, neural, and gut tissues during embryonic development, with exclusive expression in intestinal epithelial cells. |
cDNA cloning, Northern hybridization, immunohistochemistry with polyclonal antisera |
Mechanisms of development / Gene expression patterns |
High |
12617805 14516685
|
| 2003 |
FoxP4 is a forkhead transcription factor expressed in adult heart, brain, lung, liver, kidney, and testis, with embryonic expression peaking at E11 in lung and gut. |
Northern hybridization, in situ hybridization |
Biochimica et biophysica acta |
Medium |
12818433
|
| 2008 |
Foxp4 is expressed in the developing rat forebrain (striatum, cortex, thalamus) in patterns partially overlapping but distinct from Foxp1 and Foxp2; given that Foxp1/2/4 can heterodimerize, combinatorial Foxp actions may regulate forebrain development. |
Immunohistochemistry, in situ hybridization in developing rat brain |
Journal of neuroscience research |
Medium |
18561326
|
| 2010 |
Foxp4 is required for maintenance of Purkinje cell dendritic arborization in the mouse cerebellum; siRNA knockdown at postnatal day 10 impaired organization of PC dendritic arbors and disrupted Bergmann glial fiber association, whereas knockdown at P5 had no effect on early dendritic remodeling. |
siRNA knockdown in organotypic cerebellar slice culture, morphological analysis |
Neuroscience |
Medium |
20951773
|
| 2012 |
Foxp4 is dispensable for T cell development and peripheral T cell homeostasis, but is required for robust cytokine recall responses in vivo following pathogenic infection; Foxp4 expression increases upon T cell activation. |
CD4Cre-mediated conditional knockout in mice, infection models (T. gondii, LCMV), flow cytometry, cytokine measurement |
PloS one |
High |
22912696
|
| 2014 |
FOXP1, FOXP2, and FOXP4 homo- and heterodimerization differentially regulates transcription of FOXP2 target genes (CER1, SFRP4, WISP2, PRICKLE1, NCOR2, SNW1, NEUROD2, PAX3, EFNB3, SLIT1) involved in early neuronal development in HEK293 cells. |
Stable transfection of FOXP1/2/4 open reading frames in HEK293 cells, real-time PCR of target gene expression |
Journal of molecular neuroscience |
Medium |
25027557
|
| 2015 |
FOXP1, FOXP2, and FOXP4 are collectively required for islet alpha cell proliferation and glucagon secretion; triple conditional knockout (Pax6-Cre) mice exhibit hypoglycemia, hypoglucagonaemia, reduced alpha cell mass, decreased cyclin expression (Ccna2, Ccnb1, Ccnd2) and increased Cdkn1a, while beta cell insulin secretion remains normal. |
Triple conditional knockout mice (Pax6-Cre), IPGTT, radioimmunoassay, immunohistochemistry, isolated islet gene expression, glucose-stimulated hormone secretion |
Diabetologia |
High |
26021489
|
| 2015 |
FOXP4 knockdown reduces NSCLC cell growth and invasion and induces cell cycle arrest; miR-138 directly targets and downregulates FOXP4 expression; the effect of FOXP4 knockdown on cancer growth is independent of EZH2 overexpression, placing FOXP4 in a separate downstream branch from EZH2 in miR-138 signaling. |
Lentiviral shRNA knockdown, dual luciferase reporter assay, cell proliferation/invasion/cell cycle assays, EZH2 overexpression epistasis |
Tumour biology |
Medium |
25994569
|
| 2019 |
FOXP4 promotes hepatocellular carcinoma cell migration and invasion through EMT by transcriptionally activating Slug; ChIP and luciferase reporter assays confirmed direct FOXP4 binding to the Slug promoter. |
ChIP, qChIP, luciferase reporter assay, gain/loss-of-function in HCC cell lines |
Oncology letters |
Medium |
30930991
|
| 2019 |
FOXP4 promotes breast cancer cell migration and invasion through EMT by transcriptionally activating Snail; ChIP and luciferase assays confirmed direct FOXP4 regulation of the Snail promoter; Snail overexpression partially rescues FOXP4 inhibition effects. |
ChIP, qChIP, dual luciferase reporter assay, gain/loss-of-function, rescue experiments |
Cancer management and research |
Medium |
31040716
|
| 2019 |
PAX5 transcriptionally activates both FOXP4-AS1 and FOXP4 in prostate cancer; FOXP4-AS1 post-transcriptionally upregulates FOXP4 by sponging miR-3184-5p as a competing endogenous RNA (ceRNA); FOXP4-AS1 is located in the cytoplasm of PCa cell lines. |
Luciferase reporter assay, RIP, subcellular fractionation, overexpression/knockdown, ChIP |
Cell death & disease |
Medium |
31209207
|
| 2019 |
FOXP4-AS1 promotes osteosarcoma development by binding to LSD1 and EZH2, thereby downregulating LATS1 expression; RIP assay confirmed the FOXP4-AS1/LSD1/EZH2 interaction. |
RIP assay, overexpression/knockdown, proliferation/migration/invasion assays |
Biochemical and biophysical research communications |
Low |
29859193
|
| 2020 |
Heterozygous loss-of-function variants in the forkhead box DNA-binding domain of FOXP4 cause an autosomal dominant neurodevelopmental disorder with speech/language delays, growth abnormalities, and congenital abnormalities; luciferase assays demonstrated loss of transcriptional repressor activity for pathogenic variants, and aberrant subcellular localization was observed for a subset of variants. |
Luciferase transcriptional repressor assay, subcellular localization analysis, clinical cohort |
Genetics in medicine |
High |
33110267
|
| 2020 |
FOXP4-AS1 positively regulates FOXP4 expression in ESCC by: (1) acting as ceRNA sponging miR-3184-5p, and (2) interacting with IGF2BP2 to stabilize FOXP4 mRNA; YY1 transcriptionally activates both FOXP4-AS1 and FOXP4. |
RIP, RNA pulldown, luciferase reporter assay, mRNA stability assay, ChIP for YY1 |
Cell biology international |
Medium |
32159250
|
| 2021 |
FOXP4 directly promotes transcription of β-catenin in ESCC; FOXP4-AS1 upregulates FOXP4 by enriching MLL2 and H3K4me3 at the FOXP4 promoter, acting as a molecular scaffold, promoting Wnt pathway activation. |
ChIP, RIP, luciferase reporter assay, functional cell assays |
Frontiers in oncology |
Medium |
34970490
|
| 2021 |
FoxP4 regulates thermogenic programs in adipocytes: FoxP4 is induced by heat shock factor protein 1 (HSF1) binding to a heat shock response element in the FoxP4 proximal promoter; FoxP4 directly controls uncoupling protein 1 (UCP1) levels and regulates brown/beige fat gene expression and oxygen consumption. |
ChIP assay, luciferase reporter assay, gain/loss-of-function, oxygen consumption measurement in isolated adipocytes, in vivo thermogenic stimulation |
Journal of lipid research |
High |
34384787
|
| 2021 |
FOXP4 is required for human spermatogonial stem cell (SSC) proliferation; conditional inactivation of FOXP4 in human SSC lines suppressed proliferation and activated apoptosis. |
Conditional gene inactivation (RNAi) in human SSC lines, proliferation and apoptosis assays, single-cell RNA sequencing analysis |
Asian journal of andrology |
Medium |
36018067
|
| 2021 |
FOXP4 inhibits squamous differentiation of cervical intraepithelial neoplasia cells via an ELF3-dependent pathway; downregulation of FOXP4 induced squamous differentiation in CIN1-derived HPV16-positive W12 cells and HaCaT cells, both dependent on ELF3. |
siRNA knockdown, organotypic raft cultures, monolayer cultures, immunohistochemistry |
Cancer science |
Medium |
35838233
|
| 2021 |
In zebra finch Area X, FoxP4 knockdown impairs vocal learning with features partly similar to but distinct from FoxP2 knockdown, indicating FoxP4 plays a non-redundant role in song learning; FoxP1, FoxP2, and FoxP4 differentially affect spectral and temporal song features when individually manipulated. |
Lentivirus-mediated knockdown of FoxP4 in Area X of juvenile zebra finches, song analysis |
The Journal of neuroscience |
Medium |
31641053
|
| 2021 |
miR-491-5p suppresses FOXP4 in NSCLC; FOXP4 knockdown decreases TGF-β and its downstream targets MMP-2 and MMP-9, linking FOXP4 to TGF-β/MMP signaling in lung cancer cell migration. |
Dual luciferase assay, shRNA knockdown, Western blot, functional proliferation/migration assays |
Experimental and therapeutic medicine |
Low |
33936279
|
| 2022 |
Foxp1 and Foxp4 form a complex in vitro and in vivo in hair follicle stem cells; hair follicle-specific Foxp4 deficiency causes precocious HFSC activation; combined Foxp1/4 double knockout induces apoptosis of K6+ inner bulge (niche) cells and downregulates Fgf18 and Bmp6, resulting in HFSC niche destruction and hair loss. |
Co-immunoprecipitation (complex formation), conditional knockout mice, immunohistochemistry, apoptosis assays, gene expression |
Stem cells |
High |
35759955
|
| 2022 |
FOXP4 differentially governs beige adipocyte differentiation and thermogenesis: depletion in progenitors impairs early beige cell differentiation, whereas ablation in differentiated beige adipocytes potentiates thermogenesis and UCP1-mediated uncoupling upon cold exposure; this effect is specific to beige but not brown adipocytes. |
Beige adipocyte-specific conditional knockout mice, cold exposure, UCP1 measurement, functional thermogenesis assays |
Development |
High |
35297993
|
| 2022 |
FOXP4 directly binds the promoter of LEF-1 and activates Wnt signaling in laryngeal squamous cell carcinoma; ChIP and luciferase assays confirmed FOXP4 transcriptional regulation of LEF-1. |
ChIP, luciferase reporter assay, gain/loss-of-function, microarray, EMT analysis |
Molecular medicine reports |
Medium |
34590150
|
| 2023 |
Knockdown or dominant-negative inhibition of Foxp4 in mice disrupts N-cadherin apical condensation in radial glial cells (RGCs), impairs adherens junctions in the ventricular zone, leads to ectopic neurogenesis and deficient radial migration of cortical neurons; N-cadherin overexpression rescues the ectopic differentiation and migration defects. |
siRNA knockdown, dominant-negative inhibition in vivo, immunostaining, N-cadherin rescue overexpression |
Neuroscience bulletin |
High |
36646976
|
| 2024 |
FOXP4 is a direct transcriptional target of YAP1 in gastric cancer; FOXP4 maintains cancer cell stemness and promotes peritoneal metastasis by transcriptionally activating SOX12; a small-molecule screen identified 42-(2-tetrazolyl)rapamycin as a FOXP4 inhibitor. |
RNA sequencing, ChIP (YAP1-FOXP4 binding), loss-of-function/gain-of-function for stemness, spheroid formation, SOX12 functional studies, in vivo xenograft, small-molecule inhibitor screen |
Cancer research |
High |
39047223
|
| 2024 |
FOXP4 directly induces expression of PTK7 (a Wnt co-receptor) in ovarian cancer, causing abnormal Wnt/β-catenin pathway activation that drives malignant phenotype; disruption of the FOXP4-Wnt feedback loop by inactivating Wnt signaling or reducing FOXP4 reduces malignancy, reversed by PTK7 restoration. |
RNA sequencing in FOXP4-deficient cells, ChIP (FOXP4 binding to PTK7 promoter implied), functional assays, rescue with PTK7 |
Cell death & disease |
Medium |
38740744
|
| 2024 |
FOXP4 transcriptionally represses FBXW7 (a tumor suppressor) in thyroid cancer; ChIP confirmed FOXP4 protein binding to the FBXW7 promoter; FBXW7 overexpression mitigates FOXP4-mediated malignant phenotypes. |
ChIP assay, gain/loss-of-function, luciferase reporter assay, in vivo murine tumor model |
Heliyon |
Medium |
38293397
|
| 2024 |
METTL14 mediates N6-methyladenosine (m6A) modification of FOXP4 mRNA during HBV infection, enhancing FOXP4 mRNA stability and increasing FOXP4 protein levels; upregulated FOXP4 activates the PI3K/AKT pathway in HCC cells. |
m6A modification analysis of FOXP4 mRNA, mRNA stability assay, PI3K/AKT pathway readout |
Journal of Cancer |
Medium |
39513116
|
| 2024 |
FOXP4 promotes radioresistance in colorectal cancer by transcriptionally activating GPX4 via binding to the GPX4 promoter through its forkhead domain, thereby suppressing ferroptosis; doxorubicin promotes FOXP4 ubiquitination and degradation, reversing radioresistance. |
ChIP (forkhead domain binding to GPX4 promoter), ferroptosis assays, PDO models, xenograft, doxorubicin ubiquitination assay |
Advanced science |
High |
40789053
|
| 2024 |
Androgen/AR signaling suppresses FOXP4 expression in endometrial carcinoma cells; FOXP4 overexpression promotes, while FOXP4 knockdown reduces, malignant behaviors; DHT/AR-mediated suppression of cancer cell malignancy is restored by FOXP4 overexpression, placing FOXP4 downstream of AR signaling. |
AR-transfected ECC cell lines, DHT treatment, ovariectomized Pten-mutant mice, gain/loss-of-function, rescue with FOXP4 |
Communications biology |
Medium |
38890503
|
| 2024 |
Alcohol-responsive enhancer variant rs10223516 modulates FOXP4 expression via long-range chromatin interaction; FOXP4 transcriptionally activates CYP26B1 and MYC in esophageal cancer; upregulated FOXP4 promotes ESCC development in vivo. |
ChIP-seq, RNA-seq, luciferase reporter (enhancer activity), chromatin interaction assay, in vivo FOXP4 overexpression model |
Cancer research |
Medium |
40228145
|
| 2025 |
Combined but not individual deletion of FOXP1 and FOXP4 from FOXP3+ Tregs causes lymphoproliferation, autoimmunity, and early lethality; FOXP1 and FOXP4 bind to the Il2ra promoter to regulate CD25 expression in Tregs; FOXP4 has a non-redundant but insufficient role in Treg suppressive function. |
FOXP3-Cre-mediated conditional single and double Foxp1/Foxp4 knockout mice, ChIP (Il2ra promoter binding), flow cytometry, suppression assays, germinal center analysis |
JCI insight |
High |
40794436
|
| 2025 |
FOXP4 is expressed in anterior segment structures (iris, ciliary body, cornea, periocular mesenchyme); a hypomorphic missense variant (p.Q478R in the forkhead domain) retains transcriptional activity but mislocalizes to cytosolic aggregates, suggesting protein instability; FOXP4 is required for anterior segment development. |
Exome sequencing, YFP-tagged protein localization in HEK-293T and ARPE-19 cells, SRPX2-luciferase reporter assay, embryonic mouse eye immunostaining |
Investigative ophthalmology & visual science |
Medium |
40637512
|