| 2008 |
IL-25 (IL-17E) signaling requires both IL-17RB and IL-17RA subunits to form a functional heteromeric receptor complex; knockout of either subunit or antibody blockade of either receptor abolishes IL-25-induced IL-5/IL-13 production and pulmonary inflammation in vivo. |
Knockout mice (IL-17RB KO and IL-17RA KO), antagonistic monoclonal antibodies, in vitro splenocyte assays, intranasal IL-25 challenge model |
Journal of immunology |
High |
18768888
|
| 2008 |
The IL-17F/IL-17A heterodimeric cytokine signals through the IL-17RA/IL-17RC receptor complex; IL-17RA binds IL-17A with higher affinity than IL-17F or the heterodimer (measured by surface plasmon resonance), while IL-17RC binds all three cytokines with comparable affinity; soluble IL-17RA preferentially neutralizes IL-17A activity. |
siRNA knockdown of IL-17RA and IL-17RC, surface plasmon resonance (binding affinity), soluble receptor neutralization assays, bronchial epithelial cell cytokine secretion assays |
Journal of immunology |
High |
18684971
|
| 2008 |
Both IL-17RA and IL-17RC are required for IL-17A-induced ELR+ CXC chemokine (IL-6, IL-8, CCL-20) expression in synoviocytes; siRNA silencing of either receptor abrogates IL-17A-mediated signaling, and combined inhibition is required when TNF-α is also present. |
siRNA knockdown of IL-17RA and IL-17RC in rheumatoid arthritis synoviocytes, ELISA, microarray gene expression analysis |
Journal of immunology |
High |
18097068
|
| 2010 |
IL-17RA-mediated signaling requires an extended C-terminal domain beyond the previously identified SEFIR motif; Act1 recruitment to IL-17RA is necessary but not sufficient for downstream signaling, whereas TRAF6 ubiquitination correlates tightly with functional receptor activity. IL-17RA signals synergistically with lymphotoxin-α3 using the same signaling motifs. |
Structure-function mutagenesis of IL-17RA C-terminal domain, Act1 recruitment assays, TRAF6 ubiquitination assays, cell-based signaling readouts |
The Journal of biological chemistry |
High |
20729198
|
| 2011 |
The CC' loop of the SEFIR domain of Act1 directly mediates interaction with IL-17RA; a cell-permeable decoy peptide based on the CC' loop sequence inhibits IL-17- and IL-25-mediated signaling in vitro and pulmonary inflammation in vivo. Deletion of the BB' loop (unlike in TIR domains) does not affect Act1-IL-17RA interaction. |
Domain deletion mutagenesis, surface plasmon resonance (direct binding of CC' loop peptide to IL-17RA), cell-permeable peptide in vitro and in vivo inhibition, pulmonary inflammation mouse model |
Science signaling |
High |
22045852
|
| 2011 |
IL-17RA signaling is required for CCL2 and MMP12 expression and macrophage recruitment in the lung in response to cigarette smoke; IL-17RA-deficient mice fail to develop emphysema after 6 months of cigarette smoke exposure. |
IL-17RA knockout mice, cigarette smoke exposure model, qPCR for CCL2/MMP12, histological assessment of emphysema |
PloS one |
High |
21647421
|
| 2012 |
IL-17RA signaling amplifies inflammatory arthritis by directly activating synovial fibroblasts to produce multiple pro-inflammatory mediators (CXCL1, CXCL2, CXCL5, IL-1β, IL-6, RANKL, MMP2, MMP3, MMP13); IL-17RA-deficient mice show reduced cartilage and bone erosions in the K/BxN serum-transfer arthritis model. |
IL-17RA knockout mice in K/BxN serum-transfer arthritis model, qPCR for cytokines/chemokines, in vitro IL-17A stimulation of synovial fibroblasts, histological bone/cartilage assessment |
PloS one |
High |
22028860
|
| 2012 |
IL-17RA signaling in the aortic vasculature promotes atherosclerotic plaque formation by inducing aortic chemokines (TNFα, CXCL2) and supporting monocyte/neutrophil adherence and recruitment to the aortic arch; IL-17RA-deficient Apoe-/- mice show reduced aortic arch atherosclerosis. |
IL-17RA-/- x Apoe-/- double-knockout mice, Western diet feeding, flow cytometry, ex vivo monocyte adhesion assays, short-term adoptive transfer homing experiments |
Circulation research |
High |
22302786
|
| 2013 |
IL-17RA expressed on follicular T helper (TFH) cells is required for their localization to the germinal center light zone and interaction with B cells; IL-17 upregulates RGS16 in TFH cells to promote TFH-B cell conjugate formation, leading to autoantibody-producing B cell generation in BXD2 mice. |
BXD2-Il17ra-/- mice, conditional IL-17R:Fc blockade, confocal microscopy of GC light zone localization, in vitro B cell response assays, RGS16 expression analysis, BXD2-Rgs16-/- mice |
Journal of immunology |
High |
23858031
|
| 2016 |
Inherited autosomal recessive IL-17RA deficiency in humans abolishes cellular responses to IL-17A, IL-17F homodimers, IL-17A/F heterodimers (in fibroblasts), and IL-17E/IL-25 (in leukocytes), establishing IL-17RA as essential for mucocutaneous immunity to Candida and Staphylococcus. |
Primary fibroblast and leukocyte functional assays from 21 patients with defined IL-17RA loss-of-function mutations; surface expression of 12 different IL-17RA alleles characterized |
Proceedings of the National Academy of Sciences |
High |
27930337
|
| 2017 |
Cyanidin specifically binds to an IL-17A-binding site on IL-17RA, blocking the IL-17A/IL-17RA protein-protein interaction; this inhibits IL-17A-induced skin hyperplasia and TH17-mediated airway inflammation in vivo. |
Structure-based virtual screening, molecular binding assays, murine skin hyperplasia model, murine asthma models, selectivity testing against TH1/TH2-mediated inflammation |
Science signaling |
High |
28223414
|
| 2018 |
RKIP (Raf-1 kinase inhibitor protein) directly interacts with both IL-17RA and Act1 to promote formation of the IL-17R-Act1 signaling complex, resulting in enhanced MAPK and NF-κB activation and downstream inflammatory cytokine production; RKIP deficiency ameliorates experimental autoimmune encephalomyelitis (EAE) by impeding Th17- but not Th1-mediated responses. |
Co-immunoprecipitation of RKIP with IL-17RA and Act1, adoptive T-cell transfer (Th17 vs Th1), RKIP-deficient mice in EAE model, cytokine/chemokine production assays |
EMBO reports |
High |
29674348
|
| 2019 |
IL-17A recruits Rab35 (and its GEF DennD1C) to the IL-17R/Act1 complex in airway smooth muscle cells, activating Rab35 to promote PKCα activation and fascin phosphorylation at Ser39, allowing F-actin/myosin stress fiber formation and enhanced airway smooth muscle contraction. |
Cell type-specific IL-17R/Act1 deletion, Co-IP of Rab35/DennD1C with IL-17R/Act1 complex, Rab35 knockdown, PKCα inhibitor, immunofluorescence for stress fibers, airway smooth muscle contraction assay |
Journal of immunology |
High |
30683702
|
| 2020 |
Crystal structure of the extracellular domain of IL-17RC in complex with IL-17F reveals that IL-17RC forms a symmetrical 2:1 complex with IL-17F, competing with IL-17RA for cytokine binding; IL-17A and IL-17A/F heterodimer also form 2:1 complexes with IL-17RC, demonstrating the structural basis for potential IL-17RA-independent signaling. |
X-ray crystallography of IL-17RC:IL-17F complex, biophysical techniques to characterize IL-17A and IL-17A/F complexes with IL-17RC |
Immunity |
High |
32187518
|
| 2022 |
IL-17A, IL-17F, and IL-17A/F induce IL-17RA dimerization; X-ray crystallography of the heteromeric IL-17A complex with extracellular domains of IL-17RA and IL-17RC reveals a 2:2:2 hexameric signaling assembly (signalosome); formation of this signalosome potentiates IL-17-induced IL-36γ and CXCL1 expression in human keratinocytes compared to a dimerization-defective IL-17RA variant. |
X-ray crystallography, biophysical binding studies, mutagenesis of IL-17RA dimerization interface, keratinocyte gene expression assays |
Cell reports |
High |
36260993
|
| 2022 |
IL-17RA signaling in Lgr5+ intestinal stem cells induces ATOH1 transcription factor expression to promote secretory cell lineage commitment (Paneth, tuft, goblet, enteroendocrine cells); IL-17RA signaling in ATOH1+ cells is required to regenerate secretory cells following injury; IL-17A stimulation of human intestinal organoids rescues secretory cell differentiation. |
Multiple conditional deletion models (Lgr5-Cre, ATOH1-Cre), intestinal injury models, human intestinal organoid stimulation, lineage tracing, cell counting |
Immunity |
High |
35081371
|
| 2022 |
FTO (fat mass and obesity-associated RNA demethylase) reduces m6A methylation of IL-17RA mRNA in liver tissue, increasing IL-17RA expression and promoting chronic hepatic inflammation; knockdown and overexpression of FTO in vitro and in vivo confirm FTO as the main modulator of IL-17RA m6A levels. |
MeRIP-seq on human liver tissues, FTO knockdown/overexpression in vitro and in vivo, NAFLD and chronic liver injury mouse models, comparison with METTL3, METTL14, ALKBH5 |
Frontiers in oncology |
Medium |
36172147
|
| 2019 |
IL-17A signals through the IL-17A/IL-17RA/p-STAT3/FABP4 axis in ovarian cancer cells to promote fatty acid uptake and cancer cell proliferation in an adipocyte-rich microenvironment; this is dependent on IL-17RA but not CD36. |
In vitro palmitic acid uptake assays with IL-17A stimulation, IL-17RA pathway analysis, orthotopic implantation model in IL-17A-deficient mice, FABP4 and p-STAT3 expression analysis |
Cancer immunology, immunotherapy |
Medium |
31802182
|
| 2010 |
IL-17A and IL-17F both signal through IL-17RA and IL-17RC in rheumatoid synoviocytes activating NF-κB and MAPKs; siRNA silencing of either receptor nearly completely abrogates IL-17A-mediated IL-6 expression and IL-17F+TNF-α-mediated responses; IL-17A activates ERK, p38, JNK and induces TRAF6 but not MyD88. |
Affymetrix microarrays, ELISA, siRNA knockdown of IL-17RA/RC, Western blotting, NF-κB and AP-1 DNA binding assays |
Annals of the rheumatic diseases |
High |
21109515
|
| 2013 |
A soluble isoform of human IL-17RA is generated by alternative splicing (exclusion of exon 11 encoding the transmembrane region) and is secreted into cell culture media, providing a potential endogenous regulator of IL-17RA-mediated responses. |
RT-PCR in human tissues, Western blotting of culture media to detect soluble isoform protein |
Cytokine |
Medium |
24084331
|
| 2019 |
IL-17RA signaling in intestinal epithelial cells regulates the microbiome and constrains bacterial product (CpG DNA) translocation to the liver; absence of intestinal epithelial IL-17RA leads to microbiome dysbiosis, increased hepatic IL-18 production, and exacerbated immune-driven hepatitis. |
Intestinal epithelium-specific IL-17RA-deficient mice (conditional KO), immune-driven hepatitis model, microbiome analysis, bacterial product translocation assays, IL-18 measurement |
Cell reports |
High |
31747600
|
| 2019 |
IL-17RA signaling in non-hematopoietic lung fibroblasts (rather than hematopoietic cells) is required for vaccine-elicited TH17-mediated lung-specific immunity to Klebsiella pneumoniae, acting through STAT3 expression. |
Fibroblast-specific IL-17RA deletion, STAT3-deficient mice, adoptive transfer of vaccine-elicited CD4+ T cells, lung-specific immunity readouts |
Science immunology |
High |
34516780
|
| 2016 |
IL-17RA expressed on non-hematopoietic (structural) lung cells is required for CXCL-1 and CXCL-5 production and subsequent adaptive neutrophil recruitment during Mycobacteria infection; CXCL-1/5 instillation rescues neutrophil recruitment in IL-17RA-/- mice. |
IL-17RA-/- mice, BCG/Mtb intranasal infection model, bone marrow chimeras to distinguish hematopoietic vs non-hematopoietic IL-17RA, CXCL-1/5 reconstitution experiment |
PloS one |
High |
26871571
|
| 2019 |
IL-17A signals through IL-17RA to activate NF-κB-mediated fibrogenic responses in lung fibroblasts (ECM production, myofibroblast transdifferentiation, proliferation); siRNA silencing of IL-17RA attenuates these responses; JAK2 (but not JAK1/3) is also required for IL-17A-induced fibrogenic responses in fibroblasts. |
siRNA silencing of IL-17RA in normal and IPF fibroblasts, NF-κB inhibition, JAK2 siRNA and selective pharmacological inhibitors (AZD1480 vs tofacitinib), ECM protein measurement, myofibroblast marker assays |
American journal of physiology. Lung cellular and molecular physiology |
High |
30604628
|
| 2019 |
IL-17B signals through IL-17RA and IL-17RB receptor subunits (like IL-25/IL-17E) to induce type 2 cytokine secretion from human innate type 2 lymphocytes, NKT, and Th2 cells; IL-17B can augment IL-33-driven type 2 responses. |
Receptor subunit blocking antibodies and genetic dependence studies in human primary lymphocytes, cytokine secretion assays |
Journal of immunology |
Medium |
30770417
|
| 2025 |
IL-17RA in intestinal epithelial cells (IECs) suppresses EMT via restraint of EGFR/Src signaling; in macrophages, IL-17RA is required for Syk kinase activation upon dectin-1 engagement by fungi, enabling IL-18 release and protective CD8+ T cell anti-tumor immunity in colorectal cancer. |
Conditional IL-17RA deletion in IECs and macrophages, CRC mouse model, EGFR/Src pathway analysis, dectin-1/Syk signaling assays, IL-18 measurement, CD8+ T cell functional readouts, combinatorial immunotherapy experiments |
Immunity |
High |
40023157
|
| 2016 |
IL-17RA in osteoclast precursors (conditional deletion with LysM-Cre) promotes osteoclast formation and subsequent bone resorption; IL-17ra conditional KO mice display increased trabecular bone mass due to reduced osteoclast precursor abundance. |
LysM-Cre conditional IL-17ra knockout, microCT bone analysis, histomorphometry, in vitro osteoclast differentiation assays |
Bone |
Medium |
34973492
|
| 2024 |
Gingerenone A (GA) directly binds IL-17RA protein to inhibit IL-17 signaling; lentivirus-mediated IL-17RA/Act1 knockdown or co-treatment with brodalumab/ixekizumab impairs GA's protective effects against DSS-induced colitis, confirming IL-17RA as the molecular target. |
Pull-down assay, surface plasmon resonance, molecular dynamics simulation, lentiviral IL-17RA/Act1 knockdown, DSS-induced colitis mouse model, brodalumab/ixekizumab co-treatment |
Advanced science |
High |
38639442
|
| 2018 |
IL-17A signaling through IL-17RA promotes MMP-2 and MMP-9 expression and NSCLC cell invasion via p38 MAPK pathway; p38 MAPK-specific inhibitor SB203580 suppresses IL-17RA-dependent migration and invasion; MMP-2/9 are downstream effectors of the IL-17RA/p38 axis. |
IL-17RA overexpression/knockdown in NSCLC cell lines, p38 MAPK inhibitor (SB203580), wound healing/Transwell invasion assays, Western blotting |
Molecular and cellular biochemistry |
Medium |
30564960
|
| 2017 |
IL-17 regulates Cyr61, IL-23, GM-CSF, and RANKL expression in fibroblast-like synoviocytes via an IL-17RA/STAT-3 signaling cascade; IL-17RA knockdown reverses IL-17-induced SHP-2 upregulation and abolishes the osteoclastogenic potential of IL-17-treated FLS. |
siRNA knockdown of IL-17RA, STAT-3 inhibitor (S3I-201), co-culture osteoclast differentiation assays, Western blotting, TRAP staining |
Molecular immunology |
Medium |
28898718
|
| 2019 |
IL-17RA/Act1 signaling is required for IL-17RA dimerization following IL-17A stimulation of airway smooth muscle cells; IL-17RA signaling also requires cell-type-specific Act1 for its direct effect on airway smooth muscle contraction. |
Cell type-specific deletion of IL-17R and Act1 in airway smooth muscle cells, Co-IP for complex formation |
Journal of immunology |
Medium |
30683702
|
| 2019 |
Oxidative stress induces KLF4 transcription factor, which directly activates IL-17RA expression in retinal pigment epithelial cells, leading to IL-1β and IL-8 production; IL-17RA knockdown prevents OS-induced RPE apoptosis and inflammatory response. |
siRNA knockdown of IL-17RA and KLF4, promoter-binding assays, flow cytometry for apoptosis, AMD-like mouse model |
Free radical biology & medicine |
Medium |
31881336
|
| 2024 |
IL-17A impedes efferocytosis in synovial macrophages via preferential activation of JAK/STAT-3/ADAM17 signaling axis, causing ADAM17-mediated shedding of MERTK; disruption of IL-17A/IL-17RA interaction (by cyanidin or IL-17RA silencing) abolishes ADAM17 expression, reduces MERTK shedding, and restores efferocytosis. |
IL-17RA silencing, cyanidin treatment, ADAM17 knockdown, MERTK shedding assays, efferocytosis functional assays, flow cytometry for macrophage phenotype, adjuvant-induced arthritis model |
International immunopharmacology |
Medium |
38810305
|
| 2018 |
IL-17RA-/- mesenchymal stem cells (MSCs) lose immunosuppressive function in experimental autoimmune encephalomyelitis; IL-17RA-/- MSCs fail to reduce Th17 cell frequency and fail to generate CD4+CD25+Foxp3+ Tregs, correlating with reduced VCAM1, ICAM1, and PD-L1 expression on MSCs. |
IL-17RA-/- MSCs in EAE model, adoptive transfer, flow cytometry, gene expression analysis of immunosuppressive mediators |
Frontiers in immunology |
Medium |
29760692
|
| 2005 |
IL-17 receptor (IL-17RA) is expressed on human airway smooth muscle cells; IL-17 induces CXCL-8 production via transcriptional mechanisms dependent on NF-κB and AP-1 binding sites in the CXCL-8 promoter; transcriptional inhibitor actinomycin D abolishes this response. |
IL-17R expression by RT-PCR, Western blotting, and surface immunostaining; CXCL-8 promoter reporter assays with wild-type and site-specific mutant constructs; actinomycin D inhibition |
Clinical immunology |
High |
15893694
|
| 2009 |
IL-17RA signaling is required for weight loss, neutrophil migration, MPO accumulation, and oxidized phospholipid generation in the lung during influenza infection, but is dispensable for CD8+ T cell recruitment and viral clearance. |
IL-17RA-/- mice in influenza infection model, bronchoalveolar lavage cell counting, MPO measurement, oxidized phospholipid quantification, flow cytometric analysis of influenza-specific CD8+ T cells |
Journal of immunology |
High |
19783685
|
| 2011 |
The pre-ligand assembly domain (PLAD) of IL-17RA mediates receptor-chain associations essential for IL-17 signaling; blocking IL-17RA PLAD with an Ig fusion protein reduces myocardial collagen production (MMP-2, MMP-9, TIMP-1, -2, collagen I/III) and improves diastolic cardiac function in spontaneously hypertensive rats. |
Lentiviral delivery of IL-17RA PLAD-Ig in spontaneously hypertensive rats, echocardiography, immunoblotting for MMP/TIMP/collagen, collagen quantitation |
Experimental and molecular pathology |
Medium |
21530504
|
| 2018 |
IL-17RA signaling in CD8+ T cells is intrinsically required for maintenance of functional effector CD8+ T cells during Trypanosoma cruzi infection; in vitro recombinant IL-17 downregulates pro-apoptotic protein BAD and promotes CD8+ T cell survival. |
IL-17RA KO mice in T. cruzi infection model, adoptive transfer experiments, intracellular BAD expression analysis, PD-L1 blockade, transcriptomic profiling |
Frontiers in immunology |
High |
30364284
|
| 2016 |
A linear 15-residue peptide antagonist (HAP) binds IL-17A and blocks IL-17RA binding; crystal structure shows two HAP molecules bind one IL-17A dimer symmetrically, with N-terminal portions forming a β-strand inserted between IL-17A monomers and C-terminal helix directly blocking the IL-17RA binding site on IL-17A. |
Phage-display peptide screening, saturation mutagenesis, X-ray crystallography of HAP:IL-17A complex, primary human cell cytokine inhibition assays |
Scientific reports |
High |
27184415
|
| 2022 |
IL-17RA signaling in intestinal epithelium regulates secretory IgA responses against Citrobacter rodentium infection by controlling luminal hydrogen peroxide production and Tnfsf13 expression; reduced Tnfsf13 results in profound defects in generating pathogen-specific IgA+ antibody-secreting cells. |
Intestinal IL-17RA and IL-17RC conditional KO mice, C. rodentium infection model, luminal H2O2 measurement, Tnfsf13 expression analysis, IgA+ ASC quantification |
Journal of immunology |
Medium |
33431657
|