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中文名称:人糖类抗原19-9(CA19-9)酶联免疫试剂盒
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货号:CSB-E04773h
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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糖类抗原19-9(CA19-9)定量检测试剂盒,采用双抗体夹心法原理,专为血清或血浆样本的科研分析设计。CA19-9是一种与粘蛋白相关的唾液酸化Lewis血型抗原,在胰腺癌、结直肠癌等消化道肿瘤中常呈现显著高表达,其水平变化可作为相关疾病研究的生物学标志物。本试剂盒检测范围覆盖10-150 U/mL,通过预包被特异性抗体的96孔板捕获样本中的CA19-9抗原,结合HRP标记检测抗体形成复合物,经TMB显色后测定吸光度值实现定量分析。试剂盒包含标准品、检测抗体、显色液及终止液等完整组分,标准曲线R²值>0.99,实验全程约需4小时完成,建议样本采集后离心去除颗粒物,避免反复冻融以维持抗原稳定性。该产品适用于体外培养模型、动物实验或临床前研究中CA19-9表达水平的动态监测,可用于肿瘤机制探索、药物疗效评估或生物标志物相关性分析等科研场景,实验结果需结合其他指标进行综合解读。
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别名:CA199
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缩写:CA19-9
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种属:Homo sapiens (Human)
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样本类型:serum, plasma
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检测范围:10 U/mL-150 U/mL
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灵敏度:3.8 U/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:Cancer
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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%<15%
Three samples of known concentration were tested twenty times on one plate to assess.
Inter-assay Precision (Precision between assays): CV%<20%
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 human CA19-9 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 %
90-110
1:2
Average %
89
Range %
85-99
1:4
Average %
93
Range %
87-101
1:8
Average %
95
Range %
89-98
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回收率:
The recovery of human CA19-9 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)
97
93-100
EDTA plasma (n=4)
97
90-101
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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.
U/ml
OD1
OD2
Average
150
2.045
2.011
2.028
100
1.292
1.300
1.296
40
0.728
0.735
0.732
10
0.304
0.306
0.305
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数据处理:
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货期:3-5 working days
引用文献
- Near-infrared photothermal immunoassay for pancreatic cancer biomarker CA 19-9 on a digital thermometer Xianlin Han, et al,Analytica Chimica Acta,2019
- Potential role of HE4 in multimodal screening for epithelial ovarian cancer. Urban N.et al,J Natl Cancer Inst.,2015
- Significance of KRAS, NRAS, BRAF and PIK3CA mutations in metastatic colorectal cancer patients receiving Bevacizumab: a single institution experience Baltru拧kevi?ien? E.et al,Acta medica Lituanica,2016
靶点详情
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最新研究进展:CA19-9是一种被广泛用于胰腺癌诊断和监测的糖蛋白。最近的研究表明,CA19-9可能有助于肝癌的诊断和治疗。一项研究发现,CA19-9阳性的肝癌患者具有较高的肝癌特异性死亡率,这表明CA19-9可能是一种对肝癌患者预后具有潜在价值的生物标志物。此外,一些研究还发现,CA19-9的水平可以在肝癌治疗过程中用于评估治疗反应。
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