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中文名称:小鼠白介素21(IL-21)酶联免疫试剂盒
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货号:CSB-E13162m
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规格:96T/48T
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价格:¥3600/¥2500
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其他:
产品详情
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产品描述:CUSABIO小鼠白介素21(IL-21)酶联免疫检测试剂盒(货号:CSB-E13162m),采用双抗体夹心ELISA技术实现血清、血浆及组织匀浆样本中IL-21蛋白的定量分析。IL-21作为免疫调节关键因子,属于白介素2家族成员,通过参与T细胞、B细胞和NK细胞活化调控免疫应答,在自身免疫性疾病、感染机制及肿瘤免疫研究中具有重要科研价值。试剂盒基于预包被捕获抗体与检测抗体的夹心原理,可精确测定62.5-4000 pg/mL浓度范围的IL-21水平,灵敏度达62.5 pg/mL,实验全程约需4.5小时完成。该试剂盒适用于体外科研场景中免疫相关疾病模型的机制探索,如通过检测实验动物体液或组织样本的IL-21动态变化,评估炎症反应程度、疫苗免疫效果或免疫治疗干预后的生物标志物表达特征。产品包含标准品、检测抗体及全套实验试剂,通过严格的质控标准确保批次间稳定性,为研究者提供可靠的定量检测方案。
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别名:Il21Interleukin-21 ELISA kit; IL-21 ELISA kit
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缩写:
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Uniprot No.:
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种属:Mus musculus (Mouse)
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样本类型:serum, plasma, tissue homogenates
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检测范围:62.5 pg/ml-4000 pg/ml.
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灵敏度:15.6 pg/ml.
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反应时间:1-5h
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样本体积:50-100ul
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检测波长:450 nm
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研究领域:Immunology
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测定原理:quantitative
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测定方法:Sandwich
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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.
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线性度:
To assess the linearity of the assay, samples were spiked with high concentrations of mouse IL-21 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 %
96
Range %
91-101
1:2
Average %
98
Range %
92-103
1:4
Average %
103
Range %
98-108
1:8
Average %
94
Range %
88-98
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回收率:
The recovery of mouse IL-21 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)
94
90-97
EDTA plasma (n=4)
96
92-100
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标准曲线:
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
4000
2.760
2.713
2.737
2.595
2000
2.431
2.333
2.382
2.240
1000
1.938
1.912
1.925
1.783
500
1.382
1.343
1.363
1.221
250
0.801
0.767
0.784
0.642
125
0.463
0.438
0.451
0.309
62.5
0.263
0.247
0.255
0.113
0
0.143
0.141
0.142
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数据处理:
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货期:3-5 working days
引用文献
相关产品
靶点详情
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功能:Cytokine with immunoregulatory activity. May promote the transition between innate and adaptive immunity. Induces the production of IgG(1) and IgG(3) in B-cells. Implicated in the generation and maintenance of T follicular helper (Tfh) cells and the formation of germinal-centers. Together with IL6, control the early generation of Tfh cells and are critical for an effective antibody response to acute viral infection. May play a role in proliferation and maturation of natural killer (NK) cells in synergy with IL15. May regulate proliferation of mature B- and T-cells in response to activating stimuli. In synergy with IL15 and IL18 stimulates interferon gamma production in T-cells and NK cells. During T-cell mediated immune response may inhibit dendritic cells (DC) activation and maturation.
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基因功能参考文献:
- Injection of IL-21-expressing or IL-33-expressing plasmids facilitates clearance of pre-established genotype B strain designated BPS (BPS) persistence and protects cured mice from BPS re-challenge. PMID: 29242561
- this study shows that IL4 and IL21 cooperate to induce the high Bcl6 protein level required for germinal center formation PMID: 28875978
- This finding warrants future development of IL-21 and IL-7 co-expressing whole-cell cancer vaccines and their relevant combinatorial regimens. PMID: 27571893
- The studies link IL-21 to T cell ontogeny, self-reactivity, and humoral autoimmunity. PMID: 28978474
- IL-21 signaling has a critical role in optimal host resistance against Mycobacterium tuberculosis infection PMID: 27819295
- memory-like NK cells expansion depends on IL-21, and is involved in vaccine-induced protective immunity against a bacterial pathogen PMID: 27924822
- IL-6 is identified as a master regulator of IL-21 in effector CD8(+) T cells. PMID: 27670591
- Our work suggests that IL-21 regulates megakaryocyte development and platelet homeostasis. Thus, IL-21 may link immune responses to physiological or pathological platelet-dependent processes. PMID: 28057742
- we identify novel distal regulatory elements in the mouse Il21 locus and demonstrate a dynamic long-range chromatin interaction between the Il21 promoter and these regulatory elements, which contributes to the regulated expression of IL-21 PMID: 27067007
- this study shows that IL-21 acts as a potent inhibitor of a IL-17A-producing T-cell subset during Mycobacterium bovis Bacillus infection PMID: 27554052
- this study shows that combination of mIL-21 with HIV-1 vaccines leads to distinct enhancement of NK cells and T cell immune responses associated with immune protection PMID: 27062692
- The data of this study suggested that an increase in astrocyte-derived IL-21 expression in hippocampal subregions following KA-induced seizures may have potent regulatory effects on epileptogenesis. PMID: 27118610
- this study reveals a context-dependent role for IL-21 in sustaining effector phenotype CD8 T cells and influencing their migratory properties, accumulation, and functions. PMID: 26826252
- Dysregulated development of IL-17- and IL-21-expressing follicular helper T cells and increased germinal center formation in the absence of RORgammat. PMID: 26499265
- results demonstrate that, in the setting of lupus-like CD4 T cell-driven B cell hyperactivity, IL-21 signaling on Ag-specific donor CD8 T cells is critical for CTL effector maturation whereas a lack of IL-21R downregulates CTL responses that would otherwise limit B cell hyperactivity and autoantibody production PMID: 26792801
- IL-21 from microbiota-specific Th17 and/or Tfh cells contributes to robust intestinal IgA levels by enhancing IgA(+) CSR, IgA production and B-cell trafficking into the intestine. PMID: 25586558
- this report demonstrates a critical role for IL-21 in the generation of a primary effector CD8 T cell response to an infectious disease model. PMID: 26597007
- IL-21 drives the activation and expansion of a novel population of IL-13-producing Tc2 cells, which serve as a critical link between inflammation and fibrosis. PMID: 26519529
- these findings underscore the important collaboration between IL-4 and IL-21 in shaping T-dependent B cells antibody responses. PMID: 26491200
- IL-21-mediated signaling supports generation and stabilization of pathogenic Th17 cells and development of spontaneous autoimmunity. PMID: 26413871
- In vivo treatment with IL-21 results in complete mantle cell lymphoma regression in syngeneic mice via natural killer - and T-cell-dependent mechanisms. PMID: 26194763
- genetic deficiency results in reduced Th2 type response during allergic airway inflammation PMID: 26287681
- Data indicate that interleukin 21 knockout (il-21-/-) mice showed significantly diminished T follicular helper cell (TFH) generation/accumulation compared to wild type mice. PMID: 25251568
- The results indirectly provide evidence that IL-21 produced by CD4(+) T cells could promote Th1/Tc1 response, leading to systemic inflammation in emphysema. PMID: 24357415
- IL-21 suppresses the development of Th2 cells and functions of polarized Th2 cells. PMID: 25351608
- Inflammation and lymphopenia trigger autoimmunity by suppression of IL-2-controlled regulatory T cell and increase of IL-21-mediated effector T cell expansion. PMID: 25339665
- IL-21 blockage decreases BAFF levels, modulates T-cell function in acute GVHD, attenuates GVHD by inhibiting mTORC, and modulates B-cell homeostasis. PMID: 25246268
- In comparison with the DC-hgp100 or mIL-21 groups, the combinational DC-hgp100/mIL-21 vaccine drastically suppressed the myeloid-derived suppressor cells (MDSCs) and T-regulatory (Treg) cell populations. PMID: 24572790
- Data suggest that IL-21 exerts negative regulation on IRF4 and Treg activity, developing and maintaining adipose tissue inflammation in the obesity state. PMID: 24430438
- Under IL-2 deprivation conditions, IL-21 may act as the major survival factor promoting T cell immune responses. PMID: 24416451
- GM-SCF, IL-21 and Rae1 expression, alone or in combination, induces a cellular immune response against H22 tumor cells. PMID: 24350772
- IL-21 is highly up-regulated in the injured mouse brain after cerebral ischemia. PMID: 24616379
- Opposing actions of IL-2 and IL-21 on Th9 differentiation correlate with their differential regulation of BCL6 expression. PMID: 24550509
- CD86 expression has functional consequences for the magnitude of CD4 T cell responses both in vitro and in vivo. These data pinpoint CD86 upregulation as an additional mechanism by which IL-21 can elicit immunomodulatory effects. PMID: 24470500
- interleukin-21 enhances rituximab activity PMID: 23825648
- results indicate that besides IL-21, IL-21iso may be another regulator of gut inflammation PMID: 23557800
- IL-21 signaling to B cells is essential for the development of all classical disease manifestations, but IL-21 signaling also supports the expansion of central memory, CD8(+) suppressor cells and broadly represses the cytokine activity of CD4(+) T cells. PMID: 24078696
- IL-21 may also indirectly promote CD8+ T cell poly-functionality by restricting the suppressive activity of infection-induced Treg cells. PMID: 23696736
- a key role for IL-21 in shaping the humoral and cellular response to T. gondii PMID: 23667536
- IL-21 plays a critical role in regulating central nervous system immunity during viral encephalitis by sustaining viral persistence and preventing mortality. PMID: 23992866
- REsults suggest IL-21 is not required for follicular helper t-cell differentiation and function and IL-21 must act on B cells PMID: 23960240
- Notably, Th17 differentiation in the absence of NR4A2 was restored by exogenous IL-21, indicating that NR4A2 controls full maturation of Th17 cells via autocrine IL-21 signalling PMID: 23437182
- required for induction of type I diabetes PMID: 23607664
- These preliminary data show that IL-21 is critical for the development of optimal vaccine-induced primary but not secondary antibody responses against rabies virus infections. PMID: 23516660
- Interleukin-21 is a critical cytokine for the generation of virus-specific long-lived plasma cells. PMID: 23637417
- Secreted IL-21 isoform also has less signaling activity than IL-21. PMID: 23312859
- IL-21 mRNA is reduced in the spleens of lyn(-/-) IL-6(-/-) and lyn(-/-) Btk(lo) mice. PMID: 23169140
- Together, these results showed for the first time that IL-21 influences the biology and the effector activity of Natural killer dendritic cells. PMID: 23098768
- Local suppression of IL-21 alleviated secretory disfunction and disrupted lymphocyte infiltration in submandibular glands of NOD mice and thus retarded the development of Sjorgren's-like symptoms of NOD mice. Tfh cells were also inhibited. PMID: 22643047
- Results indicate a reciprocal production of IL-21 and GM-CSF in T4 cells. PMID: 23453633
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亚细胞定位:Secreted.
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蛋白家族:IL-15/IL-21 family
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组织特异性:Expressed in CD4(+) T cells.
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数据库链接:
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