| 2001 |
IL-25 (IL-17E) was identified as a ligand for the receptor EVI27/IL-17Rh1 (IL-17BR/IL-17RB). Binding induces NF-κB activation and stimulates production of the proinflammatory chemokine IL-8. |
Receptor-ligand binding assay, NF-κB reporter assay, IL-8 production assay in vitro |
The Journal of biological chemistry |
High |
11058597
|
| 2001 |
Infusion of IL-25 into mice induced IL-4, IL-5, and IL-13 gene expression and Th2-like responses (elevated serum IgE, IgG1, IgA, blood eosinophilia, lung and gut pathology). IL-25 induced Th2-type cytokine production by MHC class II-high, CD11c-dull, lineage-negative accessory cells. |
In vivo cytokine infusion in mice, gene expression analysis, serum immunoglobulin measurement, histology, flow cytometry of responding cell populations |
Immunity |
High |
11754819
|
| 2001 |
Transgenic overexpression of murine IL-17E induces a Th2-biased immune response characterized by eosinophilia, elevated serum IL-13 and IL-5, increased IgE/IgG1, and multi-organ inflammatory pathology. IL-17E also induces G-CSF production in vitro and neutrophilia in vivo. |
Transgenic mouse model, serum cytokine and immunoglobulin measurement, histology, in vitro G-CSF assay |
Journal of immunology |
High |
11714825
|
| 2002 |
Intranasal IL-25 induces IL-4, IL-5, IL-13, and eotaxin mRNA in the lung and marked eosinophilia. IL-25-induced eosinophilia requires IL-5 and IL-13 but not IL-4 or T cells, and requires a gamma-common cytokine receptor-dependent cell population that is B220+, Thy-1+/-, NK1.1-, Ly-6G-, CD4-, CD3-, c-kit-negative. |
Adenoviral in vivo delivery, cytokine-deficient and T-cell-deficient mouse models, flow cytometry of responding cell populations, bronchoalveolar lavage analysis |
Journal of immunology |
High |
12077275
|
| 2002 |
Transgenic overexpression of human IL-17E in mice driven by ApoE hepatic promoter causes eosinophilia, B-lymphocyte hyperplasia, elevated serum IL-2, IL-4, IL-5, G-CSF, eotaxin, IFN-γ, and increased IgM, IgG, IgE. In situ hybridization revealed upregulation of the IL-17E receptor IL-17Rh1 (IL-17BR/Evi27) in transgenic tissues. |
Transgenic mouse model (ApoE promoter), flow cytometry, serum cytokine/immunoglobulin ELISA, in situ hybridization |
Blood |
High |
12239140
|
| 2006 |
IL-25R (IL-17RB) cross-linking activates NF-κB and MAPK pathways (ERK, JNK, p38). NF-κB activation is mediated specifically by TRAF6 (not TRAF2): dominant-negative TRAF6 blocked IL-25R-mediated NF-κB activation, and NF-κB activation was absent in TRAF6-deficient fibroblasts. TRAF6 co-immunoprecipitates with IL-25R even in the absence of ligand. TRAF6 is required for IL-25R-mediated gene expression of IL-6, TGF-β, G-CSF, and TARC. |
Receptor cross-linking assay, dominant-negative transfection, TRAF6-deficient murine embryonic fibroblasts, co-immunoprecipitation, NF-κB reporter assay, gene expression analysis |
Journal of immunology |
High |
16393988
|
| 2006 |
IL-17E (IL-25) upregulates CCL5, CCL11 (eotaxin), GM-CSF, and CXCL8 mRNA in human primary lung fibroblasts, which constitutively express IL-17BR. IL-17E and TNF-α synergistically induce GM-CSF and CXCL8 production and secretion. TGF-β1 modulates IL-17E-induced responses. IL-17BR mRNA is upregulated by TNF-α and downregulated by TGF-β1. |
Primary fibroblast culture, immunofluorescence, Western blot, real-time PCR, ELISA, cytokine stimulation |
The Journal of allergy and clinical immunology |
Medium |
16522458
|
| 2006 |
TNF-α upregulates IL-17BR expression in airway smooth muscle cells primarily through NF-κB (blocked by IKK2 inhibitor AS-602868). IFN-γ downregulates IL-17BR via the ERK pathway (blocked by MEK inhibitor U0126). IL-17E stimulation of airway smooth muscle cells increases expression of ECM components procollagen-αI and lumican mRNA. |
In vitro airway smooth muscle cell culture, pharmacological inhibitors (NF-κB, MEK/ERK), real-time PCR, Western blot, immunohistochemistry of asthmatic biopsies |
American journal of physiology. Lung cellular and molecular physiology |
Medium |
16428271
|
| 2006 |
IL-25-induced airway hyperresponsiveness (AHR) and eosinophilic inflammation are dependent on IL-13, IL-4Rα (IL-4 receptor alpha), and STAT6 signaling, as shown by significantly reduced AHR and mucus production in IL-13−/−, IL-4Rα−/−, and STAT6−/− mice. IL-4 and IL-5/eotaxin1 deficiency also reduced AHR but not mucus hypersecretion. IL-25 can directly act on naïve T cells to promote Th2 responses. |
Intratracheal IL-25 instillation in cytokine-deficient mouse strains, plethysmography, histology, BAL analysis |
Clinical and experimental allergy |
High |
17177681
|
| 2007 |
IL-25-deficient mice are highly susceptible to experimental autoimmune encephalomyelitis (EAE), associated with increased IL-23 in the periphery and increased IL-17-, IFN-γ-, and TNF-producing T cells. IL-25 suppresses Th17 responses by inducing IL-13, which directly inhibits IL-23, IL-1β, and IL-6 expression in activated dendritic cells. |
IL-25 knockout mice, EAE model, cytokine neutralization (anti-IL-17, anti-IFN-γ), IL-25 treatment in relapsing-remitting and chronic EAE models, dendritic cell stimulation assays |
The Journal of experimental medicine |
High |
17200411
|
| 2007 |
IL-25 enhances antigen-induced Th2 cytokine production, eosinophil recruitment, and goblet cell hyperplasia in allergic airway inflammation through a Th2 cell-dependent pathway requiring CD4+ T cells and STAT6. Transgenic enforced expression of IL-25 in lung (Clara cell promoter) alone is insufficient to induce inflammation but potentiates allergen-driven responses. |
IL-25 transgenic mice (CC10 promoter), CD4+ T cell depletion, STAT6-deficient mice, OVA sensitization model, BAL analysis, histology |
The Journal of allergy and clinical immunology |
High |
16950278
|
| 2007 |
IL-25 synergistically induces release of Th2 cytokines (IL-4, IL-5, IL-10), IL-6, and chemokines (CXCL9, CXCL10, CCL5) from anti-CD3/CD28 costimulated human memory Th cells. Costimulation upregulates IL-25R surface expression on Th cells. The cytokine release is differentially regulated by JNK, p38 MAPK, and NF-κB pathways. |
Human T cell culture with anti-CD3/CD28 costimulation and IL-25, bead-based multiplex cytokine array, flow cytometry for receptor expression, EMSA for NF-κB, Western blot for MAPK, pharmacological inhibitors |
Immunology letters |
Medium |
17719653
|
| 2008 |
Commensal bacteria suppress intestinal IL-25 expression by intestinal epithelial cells. In germ-free mice, elevated Th17 cell frequency in the large intestine is associated with reduced IL-25. Commensal-dependent IL-25 limits expansion of Th17 cells by inhibiting macrophage-derived IL-23, defining an IL-25–IL-23–IL-17 axis. |
Germ-free mouse model, microbiota colonization, epithelial cell sorting, cytokine quantification, T cell frequency by flow cytometry |
The Journal of experimental medicine |
High |
18762568
|
| 2009 |
Allergen-induced stem cell factor (SCF) promotes IL-25 (IL-17E) production from c-kit+ eosinophils in the lung; bone marrow-derived mast cells did not produce IL-25 in response to SCF. The IL-25R (IL-17RB) was expressed on a CD11b+GR1+Ly6C+/- c-kit- myeloid cell population that is the major source of Th2 cytokines (IL-4) in the lung during chronic allergen challenge. |
SCF neutralization in allergen-challenged mice, sorted cell populations for cytokine expression, 4get IL-4 reporter mice, flow cytometry, bone marrow-derived mast cell assay |
Journal of immunology |
Medium |
19828636
|
| 2010 |
IL-25 promotes accumulation of a lineage-negative multipotent progenitor (MPPtype2) cell population (Sca-1+, c-Kitint) in gut-associated lymphoid tissue. MPPtype2 cells exhibit multipotent capacity giving rise to monocyte/macrophage and granulocyte lineages in vitro and in vivo. Adoptive transfer of MPPtype2 cells promotes Th2 cytokine responses and confers protective immunity to helminth infection in IL-25-deficient mice. |
Flow cytometry, in vitro and in vivo differentiation assays, adoptive transfer into Il25−/− mice, helminth infection model |
Nature |
High |
20200520
|
| 2010 |
IL-25 signals through IL-17RB expressed on in-vitro-generated IL-9-expressing T cells (Th9 cells) to enhance IL-9 expression. Transgenic or retroviral overexpression of IL-17RB in T cells results in IL-25-induced IL-9 production independently of IL-4. In vivo, the IL-25–IL-17RB pathway regulates IL-9 expression in allergic airway inflammation. |
In vitro Th9 cell generation, retroviral/transgenic overexpression of IL-17RB, IL-9 cytokine measurement, allergic airway inflammation mouse model |
Nature immunology |
High |
20154671
|
| 2010 |
Protease allergens (papain, Der P1) induce IL-25 and TSLP gene expression in mouse lung epithelial cells via protease activity-dependent activation of ERK and p38 MAPK pathways, but not NF-κB or PI-3 kinase pathways. Deactivation of protease activity abolishes IL-25 induction. |
Mouse lung epithelial cell (MLE12) stimulation, protease inactivation controls, pharmacological MAPK inhibitors, real-time PCR, in vivo BAL cytokine measurement |
Journal of Korean medical science |
Medium |
20514301
|
| 2011 |
IL-25 enhances survival of human eosinophils and upregulates ICAM-1 surface expression while suppressing ICAM-3 and L-selectin, increasing eosinophil adhesion to fibronectin. These effects are mediated through p38 MAPK (for L-selectin regulation), JNK (for ICAM-1), and NF-κB/proteasome (for ICAM-3) pathways. |
Human eosinophil culture, flow cytometry for adhesion molecules, fibronectin adhesion assay, pharmacological inhibitors (SB203580, SP600125, MG-132), RT-PCR |
Allergy |
Medium |
16792588
|
| 2011 |
IL-25 activates caspase-mediated apoptosis in IL-25R (IL-17RB)-expressing breast cancer cells through differential receptor expression; nonmalignant mammary epithelial cells with low IL-17RB expression are spared. IL-17RB is expressed at high levels in tumors from patients with poor prognosis but low in nonmalignant breast tissue. |
In vitro 3D laminin-rich gel culture, secreted factor screen, caspase activity assays, tumor tissue expression analysis, selective cytotoxicity assays |
Science translational medicine |
Medium |
21490275
|
| 2011 |
IL-25 stimulates angiogenesis in vitro by increasing HUVEC proliferation and microvessel formation in a concentration-dependent manner. HUVECs constitutively express IL-25R (upregulated by TNF-α). IL-25 increases VEGF and VEGF receptor expression. IL-25-induced angiogenesis is blocked by VEGF neutralization, PI3K inhibitor LY294002, and MEK1/2 inhibitor U0126. |
In vitro angiogenesis assay (HUVEC), WST-8 proliferation assay, real-time PCR for IL-25R and VEGF, pharmacological inhibitors (LY294002, U0126), immunohistochemistry of asthmatic biopsies |
Proceedings of the National Academy of Sciences |
Medium |
21205894
|
| 2011 |
IL-22 inhibits IL-13-mediated enhancement of IL-25 expression in lung epithelial cells (MLE-15). Anti-IL-22 antibody in vivo enhanced allergen-induced IL-25 production in airways; anti-IL-25 antibody reversed the enhancing effect of IL-22 blockade on eosinophil recruitment. This places IL-22 upstream of IL-25 in a regulatory axis. |
Anti-IL-22 neutralization in vivo, intranasal recombinant IL-22 administration, in vitro lung epithelial cell stimulation with IL-22 and IL-13, cytokine measurement by PCR and ELISA |
The Journal of allergy and clinical immunology |
Medium |
21794904
|
| 2013 |
IL-25 induces pulmonary fibrosis via IL-13 release from ILC2s driving collagen deposition in the lungs. ILC2-derived IL-13 is sufficient to drive fibrosis, independently of T-cell-mediated adaptive immunity. |
Murine IL-25 administration model, ILC2 characterization, collagen deposition histology, Rag−/− and RORα-deficient mice, cytokine neutralization |
Proceedings of the National Academy of Sciences |
High |
24344271
|
| 2013 |
IL-25 predominantly promotes MPPtype2 cell responses rather than ILC2 responses at multiple tissue sites. MPPtype2 cells are distinguished from ILC2 by differential transcription factor requirements, distinct genome-wide transcriptional profile, lack of T1/ST2 and IL-7Rα expression, and multipotent functional potential. IL-25-induced MPPtype2 cells promote Th2 cytokine-associated inflammation after ILC2 depletion. |
Comparative in vivo IL-25 vs IL-33 administration, flow cytometry, genome-wide transcriptional profiling, adoptive transfer after ILC2 depletion, transcription factor-deficient mice |
The Journal of experimental medicine |
High |
23960191
|
| 2014 |
IL-25 receptor (IL-17RB) blockade in mice reduces rhinovirus (RV)-induced exacerbation-specific responses including type 2 cytokine expression, mucus production, and recruitment of eosinophils, neutrophils, basophils, and T and non-T type 2 cells. RV infection induces IL-25 expression in mouse airways and augments allergen-induced IL-25, positioning IL-25 as a key mediator of RV-induced exacerbation of pulmonary inflammation. |
Murine RV infection model, IL-25R neutralizing antibody blockade, cytokine gene expression, cell recruitment quantification |
Science translational medicine |
High |
25273095
|
| 2014 |
Anti-IL-25 neutralizing antibody treatment in neonatal rhinovirus-infected mice attenuates ILC2 expansion, mucous hypersecretion, and airways hyperresponsiveness, establishing IL-25 as the driver of an age-dependent, ILC2-mediated type 2 response to early-life viral infection. |
Neonatal mouse RV infection model, anti-IL-25 neutralization, flow cytometry for ILC2, histology for mucus, methacholine responsiveness |
The Journal of allergy and clinical immunology |
Medium |
24910174
|
| 2015 |
Intestinal tuft cells constitutively express IL-25 to sustain ILC2 homeostasis in the resting lamina propria. After helminth infection, tuft-cell-derived IL-25 activates ILC2s to secrete IL-13, which acts on epithelial crypt progenitors to promote differentiation of tuft and goblet cells, forming a response circuit mediating epithelial remodelling. |
Tuft-cell-specific IL-25 expression analysis, helminth infection model, ILC2 characterization, IL-13 neutralization, intestinal epithelial progenitor differentiation assays, lineage-tracing/flow cytometry |
Nature |
High |
26675736
|
| 2015 |
IL-25 receptor signaling requires TRAF4, which recruits E3-ligase SMURF2 to degrade the inhibitory molecule DAZAP2, enabling ACT1 interaction with IL-17RB. TRAF4 is required for the ACT1/IL-25R interaction; Traf4−/− mice show blunted IL-25-induced airway eosinophilia and Th2 cytokine production. A specific tyrosine residue within IL-25R is required for DAZAP2-mediated inhibition relief. |
Traf4−/− mouse model, in vitro knockdown of Dazap2, co-immunoprecipitation (TRAF4/SMURF2/DAZAP2), in vivo IL-25 challenge, cytokine and eosinophil measurement, site-directed mutagenesis of IL-17RB tyrosine |
Journal of immunology |
High |
25681341
|
| 2015 |
IL-25 signals through a novel Act1-independent STAT5 pathway. STAT5 is directly activated by IL-25 and is recruited to IL-17RB in a ligand-dependent manner through unique tyrosine residues on IL-17RB. Conditional STAT5 deletion in T cells or epithelial cells leads to defective IL-25-initiated Th2 polarization. |
STAT5 conditional knockout mice (T cell and epithelial specific), STAT5 activation assays, receptor co-immunoprecipitation, site-directed mutagenesis of IL-17RB tyrosines, in vitro Th2 polarization assay |
Journal of immunology |
High |
25821217
|
| 2015 |
Keratinocyte-derived IL-17E (IL-25) is increased in psoriatic plaques. Macrophages take up IL-17E via receptor-mediated clathrin-dependent endocytosis rather than synthesizing it. M2 polarized macrophages (not M1) express the IL-17E receptor and respond to IL-17E by producing inflammatory cytokines and chemokines involved in neutrophil recruitment. |
Immunohistochemistry of psoriatic skin biopsies, in vitro monocyte-derived macrophage polarization, endocytosis assays (clathrin inhibitor), cytokine/chemokine ELISA |
The Journal of investigative dermatology |
Medium |
27329229
|
| 2017 |
IL-25 promotes M2 macrophage polarization, increases mitochondrial respiratory chain complex I and II/III activity and NAD+/NADH and ATP production, activates AMPK, and induces mitophagy to stimulate M2 macrophage polarization. CCL-22 secretion induced by IL-25 is suppressed by mitophagy inhibitor treatment and PINK1 knockdown. |
Human monocyte cell line THP-1, flow cytometry for ROS, ELISA for CCL-22, Western blot for AMPK/mitophagy proteins, confocal microscopy, mitochondrial complex activity assays, PINK1 knockdown |
International journal of molecular sciences |
Medium |
35008429
|
| 2018 |
IL-25 enhances TH17-cell-mediated contact hypersensitivity by stimulating IL-1β production from dermal dendritic cells. Mast cell- and non-immune cell-derived IL-25 drives hapten-specific TH17 (not TH2) cell activation in the elicitation phase of contact hypersensitivity via IL-1β from dermal DCs. |
Il25−/− mice, CHS model (FITC), flow cytometry, ELISA for IL-1β, immunohistochemistry, bone marrow transfer experiments |
The Journal of allergy and clinical immunology |
High |
29522843
|
| 2019 |
IL-25 (IL-17E) induces skin inflammation in vivo characterized by innate immune gene expression and neutrophil recruitment. Genetic deletion or neutralization of IL-17E ameliorates imiquimod- or tape stripping-induced skin inflammation. IL-25 promotes neutrophil recruitment via macrophage activation through a p38-dependent mechanism. |
Il17e−/− mice, IL-17E neutralization, imiquimod and tape stripping skin inflammation models, multi-parameter flow cytometry (tSNE-guided), in vitro macrophage-neutrophil co-culture with p38 inhibition |
The Journal of investigative dermatology |
High |
30738055
|
| 2020 |
IL-17E (IL-25) promotes keratinocyte proliferation in 2D and 3D cultures and upregulates differentiation-associated gene transcripts (e.g., keratin 10). IL-17E increases keratinocyte cell speed and displacement, associated with changes in actin cytoskeleton organization and cell-substrate adhesion. Human keratinocytes display a complete IL-17E receptor whose expression is induced by IL-17A. IL-22 enhances IL-17E production in keratinocytes. |
Primary human keratinocyte culture, 2D and 3D proliferation assays, time-lapse microscopy, actin staining, flow cytometry for receptor expression, gene expression profiling |
The Journal of investigative dermatology |
Medium |
31958433
|
| 2020 |
Keratinocyte-derived IL-25 activates ILC2s to produce IL-13, which drives epidermal hyperplasia, dermal CD4+ T cell infiltration, and expression of IL-13-dependent chemokines (Ccl17, Ccl22) at sites of allergic skin inflammation. ILCs are the major source of IL-13 in acutely sensitized skin, whereas T cells dominate in chronic sensitization. |
Mice lacking IL-25R, keratinocyte-specific IL-25 deletion, ILC-specific IL-25R deletion, IL-13 reporter mice (Il13-eGFP), flow cytometry, RT-qPCR, histology, OVA epicutaneous sensitization model |
The Journal of allergy and clinical immunology |
High |
32179159
|
| 2020 |
mTOR suppresses autophagy-mediated production of IL-25 in airway epithelial cells. Allergen-induced mTOR downregulation and LC3B-dependent autophagy increase IL-25 production. MTOR-specific knockdown in bronchial epithelium augments, while LC3B deletion abolishes, allergen-induced IL-25 and subsequent airway inflammation. Blocking IL-25 attenuates exacerbated inflammation in mTOR-deficient mice. |
Airway epithelium-specific MTOR knockdown mice, lc3b−/− mice, allergen (OVA, HDM) challenge models, human bronchial epithelial cell assays, cytokine measurement, histology |
Thorax |
High |
33077617
|
| 2021 |
Airway tuft cell-derived cysteinyl leukotrienes (CysLTs, specifically LTC4) and IL-25 synergistically activate ILC2s (for proliferation and cytokine production) and dendritic cells to drive type 2 lung inflammation. Tuft cell-specific deletion of Ltc4s (required for CysLT production) reduces lung inflammation and systemic immune response after aeroallergen inhalation; concomitant IL-25 blockade further enhances this reduction. LTC4-induced eosinophilia is dominantly through CysLT1R, while type 2 cytokines and innate cell activation require both CysLT1R and CysLT2R. |
Tuft cell-specific Ltc4s deletion, IL-25 blockade, CysLT receptor pharmacological dissection, intranasal LTC4 + subthreshold IL-25 co-administration, flow cytometry, eosinophil quantification |
Science immunology |
High |
34932383
|
| 2025 |
IL-17E (IL-25), expressed in cortical neurons, enhances social interaction behavior by acting on IL-17RA- and IL-17RB-expressing neurons in the cortex. IL-17RB—but not IL-17RC—is expressed in the cortex and mediates social behavior effects. Brain-region-specific mapping revealed cortically restricted expression of IL-17RB. |
Brain-wide receptor expression mapping, genetic deletion of IL-17RB, social behavior assays, neuronal cell-type-specific expression analysis |
Cell |
Medium |
40199322
|