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Human soluble interleukin-2 receptor,IL-2sRα ELISA kit

  • 中文名稱:
    人白介素2可溶性受體α鏈(IL-2sRα/CD25)酶聯免疫試劑盒
  • 貨號:
    CSB-E04629h
  • 規格:
    96T/48T
  • 價格:
    ¥3200/¥2500
  • 其他:

產品詳情

  • 產品描述:
    人白介素2可溶性受體α鏈(IL-2sRα/CD25)酶聯免疫試劑盒(CSB-E04629h)為雙抗夾心法ELISA試劑盒,定量檢測血清、血漿、組織勻漿樣本中的IL2RA含量。IL2RA 是一個重要靶點。它是白細胞介素-2 受體的 α 鏈,在免疫細胞激活與增殖中發揮關鍵作用。研究圍繞其與配體結合機制展開,旨在通過干預二者結合,調節免疫反應,為免疫相關疾病如自身免疫病、器官移植排斥反應等治療提供思路。試劑盒檢測范圍為78 pg/mL-5000 pg/mL,靈敏度為19.5 pg/mL。該產品特別適用于免疫學基礎研究、疾病生物標志物篩選及藥物治療效果評估等科研場景,例如通過檢測外周血樣本評估系統性紅斑狼瘡患者的免疫激活狀態,或分析腫瘤微環境中免疫調節因子的動態變化。本品僅用于科研,不用于臨床診斷,產品具體參數及操作步驟詳見產品說明書。
  • 別名:
    IL2RA; Interleukin-2 receptor subunit alpha; IL-2 receptor subunit alpha; IL-2-RA; IL-2R subunit alpha; IL2-RA; TAC antigen; p55; CD antigen CD25
  • 縮寫:
  • Uniprot No.:
  • 種屬:
    Homo sapiens (Human)
  • 樣本類型:
    serum, plasma, tissue homogenates
  • 檢測范圍:
    78 pg/mL-5000 pg/mL
  • 靈敏度:
    19.5 pg/mL
  • 反應時間:
    1-5h
  • 樣本體積:
    50-100ul
  • 檢測波長:
    450 nm
  • 研究領域:
    Immunology
  • 測定原理:
    quantitative
  • 測定方法:
    Sandwich
  • 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.

     

    Intra-Assay Precision

    Inter-Assay Precision

    Sample

    1

    2

    3

    1

    2

    3

    n

    20

    20

    20

    20

    20

    20

    Mean(pg/ml)

    638.872

    632.048

    630.909

    637.736

    635.463

    633.187

    SD

    0.031

    0.026

    0.034

    0.046

    0.044

    0.045

    CV(%)

    5.150

    4.362

    5.714

    7.655

    7.346

    7.540

  • 線性度:

    To assess the linearity of the assay, samples were spiked with high concentrations of human IL-2sRα in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.

     

    Sample

    Serum(n=4)

    1:1

    Average %

    93

    Range %

    86-98

    1:2

    Average %

    101

    Range %

    92-104

    1:4

    Average %

    91

    Range %

    85-94

    1:8

    Average %

    97

    Range %

    91-101

  • 回收率:

    The recovery of human IL-2sRα 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 Type

    Average % Recovery

    Range

    Serum (n=5)

    98

    89-104

    EDTA plasma (n=4)

    98

    91-102

  • 標準曲線:

    These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.

    pg/ml

    OD1

    OD2

    Average

    Corrected

    5000

    2.987

    2.842

    2.915

    2.811

    2500

    2.100

    2.212

    2.156

    2.052

    1250

    1.217

    1.199

    1.208

    1.104

    625

    0.582

    0.566

    0.574

    0.470

    312

    0.339

    0.354

    0.347

    0.243

    156

    0.225

    0.221

    0.223

    0.119

    78

    0.157

    0.148

    0.153

    0.049

    0

    0.105

    0.103

    0.104

     

  • 數據處理:
  • 貨期:
    3-5 working days

產品評價

靶點詳情

  • 最新研究進展:
    IL2RA,全稱為白細胞介素2受體α亞單位,是一種介導白細胞介素2(IL-2)信號傳導的膜蛋白。近年來的研究表明,IL2RA在多種免疫調節和自身免疫性疾病中發揮重要作用。例如,IL2RA在類型1糖尿病、類風濕性關節炎、潰瘍性結腸炎等自身免疫性疾病中過度表達。此外,IL2RA作為一種新型治療靶點,在治療惡性腫瘤和移植排斥反應中也展現了良好的應用前景。
  • 功能:
    Receptor for interleukin-2. The receptor is involved in the regulation of immune tolerance by controlling regulatory T cells (TREGs) activity. TREGs suppress the activation and expansion of autoreactive T-cells.
  • 基因功能參考文獻:
    1. Results are in line with the hypothesis that in the early phase of ALS, neuroprotective helper T cells infiltrate in the affected areas in the lumbar spinal cord. This was reflected in higher peripheral percentage of CD4(+) helper T cells and higher expression of FOXP3 and IL-2Ralpha. PMID: 29574662
    2. a significant association was found between IL2RA SNP and susceptibility to alopecia areata in Iranian cohort PMID: 29979892
    3. The gene polymorphisms at the loci of IL2RA rs2104286 and rs12722489 are closely associated with susceptibility to MS in the Chinese. PMID: 30352019
    4. Higher frequency of IL2RA SNP could not be detected among multiple sclerosis patients. The difference of frequencies was statistically insignificant between groups, probably, due to low power of analysis and inadequate sample size. PMID: 29141792
    5. Our meta-analysis suggests that the rs2104286 A allele is associated with increased MS risk in both Caucasians and Asians, whereas the rs12722489 C allele is associated with elevated MS risk in Caucasians but not in Asians. PMID: 29648897
    6. sIL-2R could be a promising new marker for determining inflammatory disease activity in CRPS. PMID: 28634419
    7. Relationship between soluble CD25 and gene expression in healthy individuals and patients with multiple sclerosis. PMID: 28511943
    8. Increased serum level of soluble interleukin-2 receptor is associated with a worse response of metastatic clear cell renal cell carcinoma to interferon alpha and sequential VEGF-targeting therapy. PMID: 28545581
    9. Data show that interleukin-2 receptor alpha, tumor necrosis factor receptor 1, serum STimulation-2 (IL1RL1 gene product), and regenerating islet-derived 3-alpha were significantly associated with non-relapse mortality. PMID: 28126963
    10. High IL2RA expression is associated with CRLF2-rearranged acute lymphoblastic leukemia. PMID: 28866095
    11. Inhibits CD25 translation through regulation of the LKB1-AMPK-mTOR pathway to suppress T cells. PMID: 28230853
    12. Among patients with a low pretreatment sIL-2R level who exhibited a positive response to R-CHOP, the posttreatment sIL-2R level may help to identify those with a poor prognosis. PMID: 28413914
    13. The findings not only confirm the predictive power of CD25 expression for Philadelphia chromosome translocation (Ph)+ but also demonstrate that CD25 expression is associated with RD (a biomarker correlated with prognosis) in Ph- patients. The latter finding is likely associated with underlying molecular abnormalities, including Ph-like genotype. PMID: 28430957
    14. Through GWAS, we found that emotion dysregulation is associated at genome-wide level significance in a sex-specific manner, with a SNP in IL2RA in men. PMID: 27643478
    15. it has been shown that CD25 serves as a negative growth regulator of Chronic myeloid leukemia leukemic stem cells. PMID: 28457753
    16. Decidual stromal cells affect IL-2 production and IL-2R expression and signaling. PMID: 27651429
    17. The single nucleotide variant rs12722489 determines differential ERalpha binding and enhancer properties of an IL2RA intronic region. PMID: 28234966
    18. CDK6-mediated suppression of CD25 is required for initiation of T-ALL by activated Notch1 PMID: 26707936
    19. CD4(+) CD25(+) GARP(+) Treg cells are defective in dilated cardiomyopathy patients and GARP seems to be a better molecular definition of the regulatory phenotype. PMID: 28207945
    20. Studies indicate many potential uses of soluble interleukin-2 receptor measurement in the diagnosis and treatment of hemophagocytic syndromes. PMID: 28497365
    21. Data suggest that differential methylation of the IL2RA promoter in T cells could be an important pathogenic mechanism in multiple sclerosis. PMID: 28077880
    22. Sustained STAT5 transcription factor (STAT5) phosphorylation is necessary to induce long-term interleukin 2 receptor subunit alpha (CD25) expression in T lymphocytes. PMID: 27936140
    23. Gastric adenocarcinoma patients present with increased PD-1(+) lymphocytes and CD4(+)CD25(+)FOXP3(+) regulatory T cells in the peripheral blood. PMID: 28031121
    24. The serum concentration of soluble IL2 receptor are increased in patients with Kawasaki disease. (Review) PMID: 28081636
    25. CD25 is an independent prognostic factor in elderly AML patients. Alternative therapies for CD25-positive elderly AML patients are needed. PMID: 28097942
    26. The study demonstrated Increased level of CD25 in patients with active vitilligo. PMID: 27556155
    27. CD45RA distinguishes CD4+CD25+CD127-/low TSDR demethylated regulatory T cell subpopulations with differential stability and susceptibility to tacrolimus-mediated immunosuppression. PMID: 28118317
    28. Combination with anti-programmed cell death protein-1 (PD-1) antibodies promoted complete tumor rejection, indicating the relevance of CD25 antigen as a therapeutic target and promising substrate for future combination approaches in immune-oncology. PMID: 28410988
    29. A compensatory mechanism of IL-7-mediated homeostatic proliferation can restore the inhibitory network of CD24+Foxp3+Treg cell after anti-CD25 induction therapy in islet allotransplantation. PMID: 27306531
    30. (99) Tc-methylene diphosphonate may improve the activity of RA through upregulating the frequency of peripheral gammadelta T cells and CD4(+) CD25(+) Foxp3(+) Tregs as well as affecting the serum cytokine environment by increasing TGF-beta and decreasing TNF-alpha and IL-6. PMID: 24467668
    31. IL-2Ra Interleukin-2 receptor antagonists (IL-2Ra) reduces the risk on new-onset diabetes after transplantation (NODAT) in liver transplant recipients. PMID: 26588180
    32. The percentages of CD8(+)CD25(+)FoxP3(brigh) Tregs correlate with mean peak expiratory flow. PMID: 25921629
    33. Efficiently downregulated the percentages of CD4+CD25+Foxp3+ regulator T (Treg) cells. PMID: 27431260
    34. introduce the combined use of CD25 and properly strati fi ed CD135 values as alternatives to testing for the FLT3-ITD mutation PMID: 27087256
    35. this study shows that PTPN22 genetic polymorphisms play role in predisposition of type 1 diabetes mellitus in Egyptian children PMID: 27288719
    36. dissected the first intron of the IL2RA gene and selected several single nucleotide polymorphisms (SNPs) that may influence the regulation of the IL2RA gene in cell types relevant to autoimmune pathology PMID: 27876533
    37. Its levels correlate to disease stage, assess response to therapy and are predictive of recurrence or better survival. We suggest, therefore, using sIL-2R as a reliable prognostic marker in HNC patients as a single marker, or in a combined panel of biomarkers. PMID: 27466555
    38. CD25 had an adverse prognostic impact on these patients, and this poor prognosis may not be overcome, even with transplant. Patients with AML with residual CD25-positive blasts at the time of transplant may require additional therapy before or after transplant to improve survival. PMID: 26422713
    39. IL2RA and TAGAP are novel vitamin D target genes. The vitamin D response is observed in samples from both the multiple sclerosis (MS) patients and controls, and is not dependent on the genotype of MS-associated SNPs in the respective genes. PMID: 26765264
    40. Anti-CD25 recombinant immunotoxin LMB-2 had phase I activity limited by immunogenicity and rapid growth. PMID: 26350263
    41. Enhanced pretreatment CD25 expression on CD4+ T cells was associated with decreased survival rate of acute myeloid leukemia patients. PMID: 26721345
    42. A decrease of CD4(+) CD25(+) CD127(low) FoxP3(+) regulatory T cells with impaired suppressive function had been found in untreated ulcerative colitis patients. PMID: 26333292
    43. Data show that an ultra-high level of serum serum soluble interleukin-2 receptor (sIL-2R) at diagnosis is a significant poor prognostic biomarker for angioimmunoblastic T-cell lymphoma (AITL). PMID: 25563559
    44. The rs2104286 G allele in IL2RA is present at higher frequencies in neuromyelitis optica patients than in healthy controls within a Southern Han Chinese population. PMID: 24257225
    45. Our results suggest that the CD34/CD25/CD123/CD99(+) LAIP is strictly associated with FLT3-ITD-positive cells. PMID: 25957287
    46. Interleukin-2 Receptor alpha-Chain (CD25) Expression Predicts a Poor Prognosis in Acute Myeloid Leukemia PMID: 26375984
    47. Data show that interleukin 2 receptor subunit alpha (IL2RA)-single nucleotide polymorphism rs2104286 and serum sIL2Ralpha-level associated with rheumatoid arthritis (RA)-persistence. PMID: 26350950
    48. CD4+CD45RO+CD25-/lowCD127+: CD4+CD45RO+CD25hiCD127-/low ratio in peripheral blood indicates heart transplant recipients at risk for cardiac allograft vasculopathy. PMID: 25539460
    49. analysis of sIL-2R levels in sarcoidosis patients with renal insufficiency PMID: 25745051
    50. all five single nucleotide polymorphisms in the IL2RA gene are risk factors for type 1 diabetes risk. PMID: 26249556

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  • 相關疾病:
    Diabetes mellitus, insulin-dependent, 10 (IDDM10); Immunodeficiency 41 with lymphoproliferation and autoimmunity (IMD41)
  • 亞細胞定位:
    Membrane; Single-pass type I membrane protein.
  • 數據庫鏈接:

    HGNC: 6008

    OMIM: 147730

    KEGG: hsa:3559

    STRING: 9606.ENSP00000369293

    UniGene: Hs.231367



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