IL31 Antibody

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Description

Definition and Structure of IL-31 Antibody

IL-31 antibodies are monoclonal or polyclonal reagents designed to bind IL-31 or its receptor (IL-31RA/OSMRβ). These antibodies block IL-31 signaling, which activates pathways such as JAK/STAT, PI3K/AKT, and MAPK, critical for inflammation and itch . IL-31 itself is a four-helix bundle cytokine structurally related to IL-6 family members but signals via a unique heterodimeric receptor .

Mechanism of Action

IL-31 antibodies inhibit IL-31 binding to its receptor, disrupting downstream pathways:

  • JAK/STAT: Drives pruritus and inflammation .

  • MAPK/ERK: Promotes keratinocyte activation and chemokine production (e.g., CCL1, CCL17) .

  • PI3K/AKT: Enhances survival of inflammatory cells .

Antibodies targeting IL-31RA (e.g., lokivetmab) have shown efficacy in reducing itch and dermatitis in preclinical models .

Clinical and Research Applications

IL-31 antibodies are used in:

  • Diagnostics: Detecting IL-31 in ELISA, Western blot, and immunohistochemistry .

  • Therapeutics: Managing AD, allergic asthma, and pruritic skin diseases .

Table 1: Key IL-31 Antibodies and Their Applications

Antibody NameCloneApplicationCross-ReactivitySource
Human IL-31 AntibodyMAB28241ELISA, Western blotNone with mouse IL-31R&D Systems
PE anti-human IL-311D10B31Flow cytometry (intracellular)Human-specificBioLegend
Anti-IL-31RALokivetmabCanine atopic dermatitis therapySpecies-specificClinical use
IL-31 Antibody31SNEZEFlow cytometry, functional assaysHuman-specificThermo Fisher

Preclinical Studies

  • Mouse Models: Anti-IL-31RA antibodies reduced scratching behavior and dermatitis in AD-like models, independent of histamine or opioids .

  • Neuroimmune Regulation: IL-31 activation of sensory neurons releases calcitonin gene-related peptide (CGRP), which suppresses type 2 inflammation in chronic allergen exposure .

Human Studies

  • Atopic Dermatitis: Elevated IL-31 correlates with disease severity and pruritus. Anti-IL-31RA therapy reduced serum IgE and Th2 cytokines in trials .

  • Parasitic Infections: IL-31RA knockout mice showed enhanced mucosal immunity against Trichuris muris, suggesting IL-31's immunoregulatory role .

Therapeutic Trials

  • Lokivetmab: Approved for canine AD, it reduced pruritus scores by 50% within 24 hours .

  • Human Trials: Anti-IL-31 antibodies (e.g., nemolizumab) improved AD symptoms in Phase III trials, with sustained itch reduction .

Challenges and Future Directions

  • Dual Role of IL-31: While pro-inflammatory in AD, IL-31 limits type 2 inflammation in chronic settings, complicating therapeutic targeting .

  • Biomarker Potential: Serum IL-31 levels may predict disease progression in sepsis and lymphoma .

Product Specs

Buffer
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Form
Liquid
Lead Time
Made-to-order (12-14 weeks)
Synonyms
Interleukin-31 (IL-31), IL31
Target Names
Uniprot No.

Target Background

Function
IL-31, a cytokine, activates STAT3 and potentially STAT1 and STAT5 through the IL31 heterodimeric receptor composed of IL31RA and OSMR. It may play a role in skin immunity. In vitro, IL-31 enhances myeloid progenitor cell survival. Additionally, it induces RETNLA and serum amyloid A protein expression in macrophages.
Gene References Into Functions
  1. Eosinophils, a type of white blood cell, are a primary source of IL-31 in bullous pemphigoid, a skin disease. This cytokine may contribute to the itchiness experienced by patients. PMID: 29693698
  2. Lung cancer patients carrying specific genetic variations in IL-31 (homozygous CC for rs7977932 or the G allele of rs4758680) exhibited significantly worse prognoses compared to those without these variations. The rs7977932 CC genotype was strongly linked to metastasis and poor survival in lung adenocarcinoma. PMID: 29791232
  3. Research suggests that these genetic variations in IL-31 (rs7977932 and rs4758680) might be associated with the development and progression of epithelial ovarian cancer in the Chinese population. PMID: 29484036
  4. Studies show that decreased serum levels of IL-31 correlate with treatment response in patients with Relapsing-Remitting Multiple Sclerosis. PMID: 29050818
  5. A comprehensive review delves into the role of IL-31 in chronic skin diseases and explores its potential diagnostic and therapeutic applications in managing these conditions. PMID: 29046191
  6. Research findings, along with existing literature, indicate that lower IL-31 concentrations in patients' serum may be associated with its role in the JAK/STAT signaling pathway, a key player in the development of autoimmune blistering diseases. PMID: 28808661
  7. Genetic variations in the IL-31 gene were strongly associated with the susceptibility to dilated cardiomyopathy and contributed to poorer outcomes in patients with this heart condition. PMID: 28572699
  8. Research suggests that CXCL13, another molecule, rather than IL-31, may hold greater clinical value for diagnosing and predicting outcomes in hepatocellular carcinoma, a type of liver cancer. PMID: 27663978
  9. Initial research into the role of the IL-31/IL-31R axis in cancer came from studies on patients with mycosis fungoides/Sezary syndrome, the most common type of cutaneous T cell lymphoma. Tumor cells were found to produce IL-31, and its levels in the blood correlated with the intensity of itching. PMID: 28408397
  10. IL31 and its receptor, IL31RA, are highly expressed in various human and mouse cancer cell lines, as well as in tumor samples from cancer patients. Murine colon carcinoma cells lacking IL31 exhibited increased invasive and migratory properties in laboratory settings. PMID: 28147314
  11. Studies show that IL-31 might be involved in the development of asthma and rhinitis. Allergies to dust mites and mugwort can significantly increase IL-31 levels. PMID: 28303765
  12. While serum levels of TSLP, a cytokine involved in allergic responses, were unaffected by co-occurring allergies and atopic conditions, serum levels of IL-31, IL-33, and sST2, other molecules involved in inflammation, were slightly affected. There was a positive association between TSLP, IL-31, and IL-33, and an inverse relationship between IL-33 and sST2. PMID: 27152943
  13. Research suggests that the IL-31 gene might play a role in the development of systemic lupus erythematosus, an autoimmune disease. PMID: 26769434
  14. High expression of IL31 is associated with Endometrial Cancer. PMID: 27340318
  15. In a chronic myeloid leukemia patient experiencing itching while receiving imatinib mesylate treatment, IL-31 and IL-33 serum levels were significantly higher than in controls. Imatinib can potentially cause keratinocyte injury, leading to the release of IL-33. This, in turn, interacts with its receptor on mast cells, triggering the secretion of IL-31. The IL-31/IL-33 axis might be involved in the development of skin side effects associated with imatinib mesylate treatment. PMID: 26316486
  16. Specific genetic variations in the IL-31 gene might contribute to the development of mastocytosis, a condition characterized by an overgrowth of mast cells, and IL-31 might play a role in inducing itching in patients with this condition. PMID: 27276346
  17. Serum and pleural fluid IL-31 levels are elevated in tuberculous pleural effusion, a type of fluid accumulation in the chest cavity. PMID: 26864868
  18. Both SCF (stem cell factor) and IL-31 play significant roles in mediating inflammation and increasing the severity of atopic asthma, a type of asthma. PMID: 26853551
  19. IL-31 influences keratinocyte differentiation in various ways, and the IL-1 cytokine network is a major downstream effector of IL-31 signaling in disrupting the skin barrier. PMID: 26944931
  20. This article provides an overview of oncostatin M and interleukin-31, focusing on their cytokine properties, receptors, signal transduction, and physiological functions. PMID: 26198770
  21. Based on analysis of serum levels and receptor expression, the research does not suggest a primary role for IL-31 in the development of Mycosis fungoides/Sezary syndrome. PMID: 25488078
  22. Research findings link TGF-beta1 and IL-31 to the progression from chronic hepatitis B to liver cirrhosis. Their levels strongly correlate with disease severity. PMID: 25710085
  23. Increased IL-31 serum levels have been observed in postmenopausal women with decreased bone mineral density. PMID: 26449657
  24. Research suggests a potential systemic involvement of IL-31 and the absence of a systemic involvement of IL-33 in allergic contact dermatitis. PMID: 26357000
  25. This study highlights the crucial requirements for IL-31 signaling and its counter-regulation by SOCS3, a protein involved in regulating immune responses. PMID: 26306032
  26. IL-31 expression in allergic rhinitis exacerbates and amplifies Th2 inflammation, a type of immune response, as well as mucin production in the nose. PMID: 25285475
  27. IL-31 serum levels were significantly higher in patients with cutaneous T-cell lymphoma compared to the control group. However, no positive correlation was found between IL-31 serum levels and itching. PMID: 25176053
  28. IL-31 is overexpressed in the affected skin of lichen planus, a skin disease, but its expression does not correlate with the intensity of itching. PMID: 25756056
  29. IL-31 levels were elevated after IVIG treatment (intravenous immunoglobulin) in patients with Kawasaki disease, and this increase was significantly associated with the formation of coronary artery lesions. PMID: 25122210
  30. A case report details a case of sporadic lichen amyloidosis, a skin disease, with high IL31 expression. PMID: 24573820
  31. Research suggests that the severity of atopic dermatitis in a Polish population is associated with specific genetic variations in the IL-31 gene, raising further questions about the role of IL-31 in itching in atopic dermatitis. PMID: 25534405
  32. Increased levels of Th2 cytokines, a type of immune response, correlated with IL-31 expression in nasal polyps, suggesting a possible regulatory role for IL-31 in the development of nasal polyps. PMID: 24515918
  33. Research suggests that IL-31 might be a gene associated with the development of rheumatoid arthritis, an autoimmune disease. PMID: 25572240
  34. The IL-31/IL-31receptor axis contributes to tumor growth in human follicular lymphoma. PMID: 25283844
  35. TARC (thymus and activation-regulated chemokine) and interleukin-31 might be biomarkers for adult atopic dermatitis. PMID: 24984931
  36. IL-31 might play a significant role in the pathophysiology of uremic pruritus, itching associated with kidney failure. PMID: 25270263
  37. IL-31-positive cells were observed as mononuclear infiltrating cells and as CD11b co-expressing cells in severe atopic dermatitis samples. PMID: 24667097
  38. Research shows that STAT6 and NF-kappaB, proteins involved in cellular signaling, are central to mediating IL-31 expression induced by IL-4/IL-33. PMID: 24943220
  39. EGFR-TK inhibitors, a type of cancer treatment, can potentially cause keratinocyte injury, leading to the release of IL-33. This, in turn, interacts with its receptor on mast cells, inducing the secretion of various factors, including IL-31, which can cause skin manifestations. PMID: 23794184
  40. IL-31 appears to be another factor that stimulates sweating. PMID: 23874436
  41. CD4+CD26- malignant cells specifically produce IL-31, and clinical improvement in itching correlates with reduced IL-31 levels in the blood. PMID: 23698099
  42. IL-31 and IL-31RA are upregulated in patients with allergic rhinitis and induce MUC5AC gene expression in human airway epithelial cells. PMID: 23392388
  43. IL-31 triggers pro-inflammatory effects in activated human macrophages through STAT-1 and 5 phosphorylation. IL-31-induced ERK 1/2 activation contributes to the underlying mechanism of Th1 cytokine IL-12 suppression in macrophages. PMID: 23621408
  44. IL-31 is not a typical Th2 cytokine but is likely expressed by various cells in allergic situations where IL-4 is present, potentially contributing to the allergic reaction. PMID: 23694808
  45. Research hypothesizes that altered regulation of IL-31 gene expression influences the clinical course of atopic dermatitis. Existing research and findings support a significant role for IL-31 gene polymorphism in the development of atopic dermatitis. PMID: 22827739
  46. The IL-31-631 T>G polymorphism was significantly associated with IL-31 blood levels but not with disease susceptibility. PMID: 21952721
  47. T cells in chronic atopic dermatitis (AD) skin produce IL-31, and AD lesions contain increased levels of these IL-31-producing T cells. PMID: 22621183
  48. IL-31 serum levels correlate with the SCORAD score (a measure of atopic dermatitis severity), sleeplessness, and Th2 cytokines, including IL-4 and IL-13, in sixty children with the extrinsic type of atopic dermatitis. PMID: 22509760
  49. IL-31-specific activation of dendritic cells might be part of a positive feedback loop that drives the progression of inflammatory skin diseases. PMID: 22539792
  50. Distinct SPINK5 and IL-31 gene variants (SNPs) were associated with the development of atopic eczema and non-atopic hand dermatitis in Taiwanese nurses. PMID: 22017185

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Database Links

HGNC: 19372

OMIM: 609509

KEGG: hsa:386653

STRING: 9606.ENSP00000366234

UniGene: Hs.569071

Subcellular Location
Secreted.
Tissue Specificity
Detected at low levels in testis, bone marrow, skeletal muscle, kidney, colon, thymus, small intestine and trachea.

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