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      Human Interleukin 1 receptor antagonist, IL-1ra ELISA kit

      • 中文名稱:
        人白介素1受體拮抗劑(IL1Ra)ELISA Kit
      • 貨號:
      • 規格:
      • 價格:
      • 其他:


      • 產品描述:

        The Human Interleukin 1 receptor antagonist (IL1RA/IL1RN) ELISA kit is designed to specifically detect the IL1RN levels in human serum, plasma, cell culture supernates, or tissue homogenates. This assay employs the sandwich ELISA technique in which IL1RN in the sample is sandwiched between the pre-coated anti-human IL1RN antibody and Biotin-labeled IL1RN antibody and the Ag-Ab-Ag complex is labeled by the HRP-avidin and then develops color reaction after the addition of the TMB substrate solution. The color intensity can be measured by a microplate reader at 450 nm. The kit has been validated with a broad detection range (78 pg/mL-5000 pg/mL), high sensitivity, excellent specificity, precision low than 10%, high recovery, and consistency between batches.

        IL1RN is an agent that competitively inhibits IL1 binding to the cell surface IL-1R and its local inflammatory effects. It is generated locally in various tissues in response to infection or inflammation. High levels of IL1RN is found in the circulation secondary to hepatic production as an acute-phase protein. The imbalance between IL-1 and IL1RN may predispose to inflammatory arthritis and arthritis. IL1RN has been demonstrated to involve in the immunosuppressive effects of mesenchymal stem cells (MSCs). MSCs, in IL-1RN-dependent manner, inhibited IL-1α and IL-1β-driven inflammation, elicited anti-inflammatory M2 phenotype, attenuated antigen-presenting properties of dendritic cells (DCs), and increased generation of Tregs enabling generation of the immunosuppressive milieu in inflamed tissue that led to alleviation of Th1/Th17 cell-dependent immune response and promoted enhanced tissues repair and regeneration.

      • 別名:
        DIRA ELISA Kit; F630041P17Rik ELISA Kit; ICIL 1RA ELISA Kit; ICIL-1RA ELISA Kit; ICIL1RA ELISA Kit; IL-1ra ELISA Kit; IL-1ra3 ELISA Kit; IL-1RN ELISA Kit; IL1 inhibitor ELISA Kit; IL1F3 ELISA Kit; IL1RA ELISA Kit; IL1RA_HUMAN ELISA Kit; IL1RN (IL1F3) ELISA Kit; IL1RN ELISA Kit; Interleukin 1 receptor antagonist ELISA Kit; Interleukin-1 receptor antagonist protein ELISA Kit; Intracellular IL 1 receptor antagonist type II ELISA Kit; Intracellular interleukin 1 receptor antagonist (icIL 1ra) ELISA Kit; IRAP ELISA Kit; MGC10430 ELISA Kit; MVCD4 ELISA Kit; Type II interleukin 1 receptor antagonist ELISA Kit
      • 縮寫:
      • Uniprot No.:
      • 種屬:
        Homo sapiens (Human)
      • 樣本類型:
        serum, plasma, cell culture supernates, tissue homogenates
      • 檢測范圍:
        78 pg/mL-5000 pg/mL
      • 靈敏度:
        19.5 pg/mL
      • 反應時間:
      • 樣本體積:
      • 檢測波長:
        450 nm
      • 研究領域:
      • 測定原理:
      • 測定方法:
      • 精密度:
        Intra-assay Precision (Precision within an assay): CV%<8%
        Three samples of known concentration were tested twenty times on one plate to assess.
        Inter-assay Precision (Precision between assays): CV%<10%
        Three samples of known concentration were tested in twenty assays to assess.
      • 線性度:
        To assess the linearity of the assay, samples were spiked with high concentrations of human IL-1ra in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
        1:1Average %94
        Range %85-102
        1:2Average %90
        Range %86-100
        1:4Average %89
        Range %82-95
        1:8Average %95
        Range %87-105
      • 回收率:
        The recovery of human IL-1ra spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
        Sample TypeAverage % RecoveryRange
        Serum (n=5) 9793-105
        EDTA plasma (n=4)9894-102
      • 標準曲線:
        These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
        50002.503 2.482 2.493 2.413
        25001.713 1.723 1.718 1.638
        12501.035 1.017 1.026 0.946
        6250.604 0.615 0.610 0.530
        3120.337 0.319 0.328 0.248
        1560.201 0.206 0.204 0.124
        780.154 0.162 0.158 0.078
        00.081 0.078 0.080
      • 本試劑盒所含材料:
        • A micro ELISA plate ---The 96-well plate has been pre-coated with an anti-human IL1RN ANTIBODY. This dismountable microplate can be divided into 12 x 8 strip plates.
        • Two vials lyophilized standard ---Dilute a bottle of the standard at dilution series, read the OD values, and then draw a standard curve.
        • One vial Biotin-labeled IL1RN antibody (100 x concentrate) (120 μl/bottle) ---Act as the detection antibody.
        • One vial HRP-avidin (100 x concentrate) (120 μl/bottle) ---Bind to the detection antibody and react with the TMB substrate to make the solution chromogenic.
        • One vial Biotin-antibody Diluent (15 ml/bottle) ---Dilute the Biotin-antibody.
        • One vial HRP-avidin Diluent (15 ml/bottle) ---Dilute the HRP-avidin solution.
        • One vial Sample Diluent (50 ml/bottle)---Dilute the sample to an appropriate concentration.
        • One vial Wash Buffer (25 x concentrate) (20 ml/bottle) ---Wash away unbound or free substances.
        • One vial TMB Substrate (10 ml/bottle) ---Act as the chromogenic agent. TMB interacts with HRP, eliciting the solution turns blue.
        • One vial Stop Solution (10 ml/bottle) ---Stop the color reaction. The solution color immediately turns from blue to yellow.
        • Four Adhesive Strips (For 96 wells) --- Cover the microplate when incubation.
        • An instruction manual



      • 本試劑盒不含材料:
        • A microplate reader capable of measuring absorbance at 450 nm, with the correction wavelength set at 540 nm or 570 nm.
        • An incubator can provide stable incubation conditions up to 37°C±5°C.
        • Centrifuge
        • Vortex
        • Squirt bottle, manifold dispenser, or automated microplate washer
        • Absorbent paper for blotting the microtiter plate
        • 50-300ul multi-channel micropipette
        • Pipette tips
        • Single-channel micropipette with different ranges
        • 100ml and 500ml graduated cylinders
        • Deionized or distilled water
        • Timer
        • Test tubes for dilution



      • 貨期:
        3-5 working days


      • 功能:
        Inhibits the activity of interleukin-1 by binding to receptor IL1R1 and preventing its association with the coreceptor IL1RAP for signaling. Has no interleukin-1 like activity. Binds functional interleukin-1 receptor IL1R1 with greater affinity than decoy receptor IL1R2; however, the physiological relevance of the latter association is unsure.
      • 基因功能參考文獻:
        1. PDE4B-deficient mice displayed an increased circulating IL-1Ra, suggesting a protective role of PDE4B inactivation in vivo. PMID: 28383060
        2. Interleukin 1 receptor antagonist*A2 might be a risk factor for progressive vitiligo. PMID: 29620037
        3. IL1-Ra is an independent predictor for adverse outcomes in patients with documented coronary artery disease. PMID: 29395365
        4. Carrying allele IL1RN*2 had a strong association with idiopathic recurrent spontaneous abortion (iRSA) in Mexican women; this polymorphism codifies for a low-function protein, which may allow for increased activity of IL-1 pro-inflammatory axis in iRSA. PMID: 29718011
        5. there was no sufficient evidence to support the association between IL-1RN 86-bp VNTR polymorphism and ischemic stroke (Meta-Analysis) PMID: 30075593
        6. Serum interleukin 1 receptor antagonist (IL1RA) and granzyme B (GZMB) levels were markedly increased in Crohn's disease (CD) patients, suggesting that these markers can serve as biomarkers to identify gut inflammation. PMID: 28972805
        7. this study reflects the importance of the IL1RN*2/2 genotype and its possible association in the pathogenesis of RA by regulation in the IL-1Ra production. PMID: 29226727
        8. Data show that the frequency of the IL-1 receptor antagonist (IL-1RN) 'T' allele of rs928940 was significantly lower in BC cases than in controls. PMID: 29047186
        9. TNF-alpha -857 C/C variant might represent protective effect against recurrent pregnancy loss (RPL) and the -857 C/T variant might be a genetic risk factor for the occurrence of RPL. Invariant differences in the prevalence of -511 C/T and -31 C/T polymorphisms and IL-1RN VNTR between RPL patients. PMID: 29949333
        10. IL-1ra concentrations were greater (p = 0.0018) in bone marrow aspirate samples (13,432 pg/mL) than in platelet-rich plasma (588 pg/mL). PMID: 26831858
        11. Studied role of IL-1Ra VNTR variant in susceptibility of temporomandibular joint disorders (TMD), and found the variant is significantly associated with TMD. PMID: 28612927
        12. Studied interleukin-1 receptor antagonist (IL-1Ra) and angiotensin-converting enzyme (ACE) I/D polymorphisms with regards to the susceptibility of patients to carpal tunnel syndrome. PMID: 28370589
        13. we did not observe an association between IL-1Ra 86 bp VNTR polymorphism in intron 2 and RPL patients (p > 0.05). Conclusion IL-1Ra VNTR polymorphism may not be a genetic factor for RPL PMID: 28593919
        14. The presence of the rs2234663 A2/A2 genotype in rheumatoid arthritis is associated with increased disease activity. PMID: 28342152
        15. The results suggest that although the 1068 G>A polymorphism of the P2RX7 gene is associated with an increased beta-cell function and IL-1Ra release in type 2 diabetes patients, the glycemic control is not significantly affected by the presence of this SNP. PMID: 29425823
        16. Studies used adult stem cells to engineer anatomically shaped, functional cartilage constructs capable of tunable and inducible expression of antiinflammatory molecules, specifically IL-1 receptor antagonist (IL-1Ra). PMID: 27432980
        17. No significant associations with RHD were found for the IL1RN rs447713 and CTLA4 rs3087243 SNPs. PMID: 27400406
        18. Reconstitution of ST2 (IL-1R4) specific for IL-33 activity; no suppression by IL-1Ra though a common chain IL-1R3 (IL-1RAcP) shared with IL-1 PMID: 27031441
        19. The polymorphic expression of IL-1RN (rs419598) gene may be associated with a reduced susceptibility to GAgP and GCP in populations of European descent. PMID: 29023524
        20. associations between the genetic variants and the LPS-induced IL-6, IL-8, IL-10, IL-1ra and TNF-alpha cytokine levels were not significant in the meta-analysis. This present study does not support a strong genetic effect of LPS-stimulated cytokine production; however, the potential for type II errors should be considered PMID: 23823136
        21. IL1RA intron 2 VNTR seems to be a genetic marker for overall adiposity status in Malaysian subjects. PMID: 28293435
        22. Increased IL-1Ra levels in women with polycystic ovary syndrome were largely explained by increasing adiposity. However, serum IL-1Ra concentrations predicted 2-h glucose levels independently of BMI suggesting that increased IL-1Ra may be associated with disturbed glucose metabolism. PMID: 27061312
        23. demonstrated that IL-1RN VNTR polymorphism might increase the risk of H. pylori infection, especially in Asians PMID: 28384207
        24. VNTR polymorphism associated with osteomyelitis development PMID: 28682145
        25. Polymorphisms of Il1rn were not significantly associated with bipolar I disorder in Iranian patients. PMID: 28129679
        26. Meta-analysis: Serum IL-1RA levels were positively associated with risk of cardiovascular disease. This association may at least partially reflect a response to triggers inducing subclinical inflammation, oxidative stress, and endothelial activation. PMID: 28428221
        27. Our work highlights the convenience and efficiency of this novel pH-sensitive fluorescent probe and reveals the new biological activity of staurosporine as an agonist for GLUT4 translocation and as an effective insulin additive analogue. PMID: 27769857
        28. African American women are at increased risk for early birth, particularly via the inflammatory pathway. Variants of the IL1RN gene, which encode the interleukin-1 receptor antagonist (IL-1Ra) protein, are implicated in early birth PMID: 28252571
        29. This study reveled that the association of IL1RN haplotype containing RN2 with FIRES, and showed a possible association of IL1RN rs4251981 G > A. PMID: 27538648
        30. We found that the mean mRNA levels of the proinflammatory cytokines IL-1beta, IL-6, TNF-alpha, their receptors, TNFR1, TNFR2, IL-1R1 and the antagonist IL-1RA were significantly increased in the lymphocytes of MDD patients compared with NC [normal control subjects].. PMID: 27138824
        31. C/T genotype of IL-1Ra +2018 prognosticates more aggressive disease in RA PMID: 27105431
        32. this study shows that IL-1Ra gene variants are associated with susceptibility to juvenile idiopathic arthritis in Iranian population PMID: 27717726
        33. The A2 allele of the interleukin 1 receptor antagonist VNTR polymorphism could be a protective factor for pre-eclampsia susceptibility. PMID: 26555681
        34. A2 allele and the combined IL-4 (low) -IL-1Ra (high) genotype might be genetic markers of susceptibility to frailty in Mexican elderly. PMID: 26646252
        35. This study demonstrated that thr frequency of the IL-1Ra/C allele at position Mspa-I 11100 was decreased significantly and the IL-1Ra/T frequency was significantly increased in patients with Febrile Seizures. PMID: 26500244
        36. Data indicate that levels of interleukin 1 receptor antagonist protein (IL-1-Ra) remain elevated for at least one year after storage at -80 degrees C. PMID: 26994310
        37. study showed that, IL-1RN allele 2, periodontal disease characterized with clinical attachment loss, previous preterm/low birth weight outcome (PLBW) and age could be important risk factors for PLBW PMID: 26445016
        38. Significant associations were found between Crohn's disease (CD) and minor NOD2 variants, as well as TLR4 299Gly, TNF-alpha G-308A, IL-6 G-174C and IL-1RN VNTR A2 variants, while ulcerative colitis (UC) was associated only with IL-1RN VNTR A2 variants. PMID: 26316104
        39. Suggest that IL-1RN rs315952 polymorphism may not be associated with susceptibility to Tourette syndrome in Chinese Han population. PMID: 26097611
        40. Serum IL1RA and IL2RA are predictors of event free survival in T-cell lymphoma. PMID: 26487586
        41. IL-1Ra can be a useful tool in the diagnosis of hepatic inflammation. PMID: 26612588
        42. This study shows a significant association between IL-1 RA allele distribution and febrile convulsions PMID: 26813462
        43. IL-1 genotypes do not seem to be good predictors of peri-implantitis in the great majority of smoking patients PMID: 26449434
        44. the lower expression of IL10 and the higher expression of IL1RA in Mo exposed to arthritic than to non-arthritic SF suggest that arthritic SF is mainly reducing the inflammatory responses in Mo. PMID: 26521731
        45. Results indicate there is a lack of association between the IL1RN VNTR polymorphisms and tuberculosis risk. [Meta-Analysis] PMID: 26330006
        46. The IL-4 rs79071878 polymorphism, was associated whereas the IL-1Ra rs2234663 polymorphism was not associated with Familial Mediterranean Fever risk in the Turkish population. PMID: 26861613
        47. While both contributing to pathogen clearance, NLRP3 more than NLRC4 contributes to deleterious inflammatory responses in cystic fibrosis and correlates with defective NLRC4-dependent IL-1Ra production. PMID: 26972847
        48. These data suggest that M. leprae upregulates IL-1Ra by a TOLLIP-dependent mechanism; inhibition of TOLLIP may decrease an individual's susceptibility to leprosy and offer a novel therapeutic target for IL-1-dependent diseases. PMID: 26610735
        49. This study emphasizes a positive association between IL1-Ra (VNTR) polymorphism and DM among Saudi children. This may suggest that (A2) allele may play important role in disease susceptibility. PMID: 26502861
        50. IL1-RN VNTR A1A3 genotype is associated with higher risk of RA. Among the cases, males who carry this genotype were more exposed to RA and had less erosive forms. PMID: 26003199



      • 相關疾?。?/div>
        Microvascular complications of diabetes 4 (MVCD4); Interleukin 1 receptor antagonist deficiency (DIRA)
      • 亞細胞定位:
        Isoform 1: Secreted, SUBCELLULAR LOCATION: Isoform 2: Cytoplasm, SUBCELLULAR LOCATION: Isoform 3: Cytoplasm, SUBCELLULAR LOCATION: Isoform 4: Cytoplasm
      • 組織特異性:
        The intracellular form of IL1RN is predominantly expressed in epithelial cells.
      • 數據庫鏈接:

        HGNC: 6000

        OMIM: 147679

        KEGG: hsa:3557

        STRING: 9606.ENSP00000259206

        UniGene: Hs.81134