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中文名称:人三叶因子2(TFF2)酶联免疫试剂盒
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货号:CSB-EL023432HU
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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:本试剂盒(货号:CSB-EL023432HU)采用夹心法酶联免疫吸附技术,专用于定量检测人血清、血浆、组织匀浆及细胞培养上清中的三叶因子2(TFF2)水平,其检测范围覆盖31.25 ng/mL至2000 ng/mL的宽线性范围,最低检测灵敏度达31.25 ng/mL。TFF2作为三叶因子家族成员,在胃肠道黏膜修复、黏液层稳定及抗炎过程中发挥关键作用,其表达水平与胃溃疡、炎症性肠病及胃癌等病理过程密切相关。试剂盒基于预包被特异性抗体捕获样本中TFF2蛋白,通过生物素标记的检测抗体与链霉亲和素-HRP系统进行信号放大,结合TMB显色反应实现精准定量分析,实验全程仅需4.5小时。该产品适用于基础医学研究中TFF2的生物学功能探索,包括黏膜修复机制、炎症调控及肿瘤微环境研究,可配合多种样本类型灵活应用:血清/血浆用于评估循环系统中TFF2的动态变化,组织匀浆适用于组织局部表达量分析,而细胞培养上清则为体外实验模型提供便捷检测方案。试剂盒组分包含标准品、预包被板及检测试剂,-20℃保存有效期12个月,建议重复冻融不超过3次以保证最佳性能。
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别名:SML 1 ELISA Kit; SML1 ELISA Kit; SP ELISA Kit; Spasmolysin ELISA Kit; Spasmolytic polypeptide ELISA Kit; spasmolytic protein 1 ELISA Kit; TFF 2 ELISA Kit; TFF2 ELISA Kit; TFF2_HUMAN ELISA Kit; trefoil factor 2 (spasmolytic protein 1) ELISA Kit; Trefoil factor 2 ELISA Kit; Trefoil factor 2 precursor ELISA Kit
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缩写:TFF2
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Uniprot No.:
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种属:Homo sapiens (Human)
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样本类型:serum, plasma, tissue homogenates, cell culture supernates
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检测范围:31.25 ng/mL-2000 ng/mL
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灵敏度:7.81 ng/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:Signal Transduction
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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. -
线性度:
To assess the linearity of the assay, samples were spiked with high concentrations of human TFF2 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 % 87 Range % 80-92 1:2 Average % 95 Range % 90-100 1:4 Average % 97 Range % 90-103 1:8 Average % 92 Range % 88-97 -
回收率:
The recovery of human TFF2 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 89-98 EDTA plasma (n=4) 98 90-105 -
标准曲线:
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed. ng/ml OD1 OD2 Average Corrected 2000 2.026 2.007 2.017 1.920 1000 1.364 1.306 1.335 1.238 500 0.788 0.724 0.756 0.659 250 0.457 0.427 0.442 0.345 125 0.262 0.246 0.254 0.157 62.5 0.175 0.167 0.171 0.074 31.25 0.119 0.114 0.117 0.020 0 0.101 0.093 0.097 -
数据处理:
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货期:3-5 working days
引用文献
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靶点详情
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功能:Inhibits gastrointestinal motility and gastric acid secretion. Could function as a structural component of gastric mucus, possibly by stabilizing glycoproteins in the mucus gel through interactions with carbohydrate side chains.
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基因功能参考文献:
- Data show that trefoil factor 2 (TFF2( urine levels continuously decreased with disease progression, TFF2 serum concentrations progressively increased from the early to later chronic kidney disease (CKD) stages, indicating changes in renal function and offering the potential to examine the course of CKD. PMID: 28355260
- this work reveals that TFF2 has tumor-suppressor activity, which may, in part, be regulated by SMAD4. PMID: 27523981
- Data show the important functions of TFF2 in the gastric mucus barrier, mucus epithelia, immune system, central nervous system, and during fertilization. It has been shown to interact with the gastric mucin MUC6. [Review] PMID: 26201258
- We reproducibly associate higher expression of the ligand-receptor axis of TFF2 and CXCR4 with BRAF V600E-mutant colon cancer PMID: 25899003
- protease-activated receptor 4 and Trefoil factor 2 are expressed in human colorectal cancer PMID: 25876034
- The structural features of the N-linked N,N'-di-N-acetyllactosediamine-inducing determinant on human TFF2 are discussed. PMID: 25210040
- Human TTF2 is a lectin that binds alpha-GlcNAc-capped mucin 6 g with antibiotic activity against Helicobacter pylori. PMID: 25124036
- Significantly higher levels of TFF2 were in patients with Multiple Organ Dysfunction Syndrome. PMID: 23628371
- There is an association between TFF2 and TFF3 polymorphisms and risk of atrophic gastritis and gastric cancer in Chinese people. PMID: 23933418
- Human gastric TFF2 peptide contains an N-linked fucosylated N,N'-diacetyllactosediamine (LacdiNAc) oligosaccharide PMID: 22997242
- Report TFF2 expression in normal/diseased pancreas and suggest role in tumor cell migration. PMID: 22286382
- Report a novel TFF2 splice variant (EX2TFF2) which correlates with longer overall survival time in cholangiocarcinoma. PMID: 22159958
- TFF2 messenger RNA expression is significantly increased in nasal mucosal brushings during asthma exacerbations in children. PMID: 22329990
- Data show that frog TFF2 activates protease-activated receptor (PAR) 1 to induce human platelet aggregation, and suggest that human TFF2 promotes cell migration via PAR4. PMID: 21461878
- TFF2 is mitogenic in cholangiocarcinoma via EGFR/MAPK activation. PMID: 21472131
- TFF2 negatively regulates preneoplastic progression and subsequent tumor development in the stomach, a role that is subverted by promoter methylation during H pylori infection PMID: 20801119
- autoinduction of promoter requires an upstream cis-acting element PMID: 12054609
- Transcripts not detectable in conjunctiva. Review. PMID: 12613926
- expression of TFF2 and Helicobacter pylori infection in carcinogenesis of gastric mucosa PMID: 12717829
- The results suggest that TFF2 expression may play a role in gastric cancer invasion and could be a useful target for therapeutic intervention. PMID: 13679442
- PPARgamma mediates NSAIDs-induced up-regulation of TFF2 expression in gastric epithelial cells. PMID: 14759512
- TFF2 and its putative receptor, DMBT1, were expressed non-specifically in biliary epithelial cells of the damaged small bile ducts, suggesting a cytoprotective role in biliary pathophysiology. PMID: 15101998
- TFF2 could play a role in mammary gland tumorigenesis. PMID: 15177880
- TFF2 is expressed in normal and malignant breast epithelial cells and it stimulates the migration of breast cancer cells. PMID: 15177883
- Epidermal growth factor and trefoil factor family 2 synergistically trigger chemotaxis on BEAS-2B cells via different signaling cascades PMID: 15256384
- Demonstration that TFF2 rhythm is impaired in cohorts of individuals known to suffer gastric symptoms suggests that interventions to restore the normal TFF2 rhythm in those with poor mucosal protection could reduce morbidity. PMID: 15984970
- TFF2 staining was detected in large, diffuse tumors and in tumors with lymph node metastasis and had a significant correlation with the number of microvessels. PMID: 16166422
- human pancreatic polypeptide inhibits TFF2 secretion in a diurnal rhythm PMID: 16359755
- Co-localization of TFF2 with gland mucous cell mucin suggests a physical interaction between TFF2 and gland mucous cell mucin. The TFF2 trapped in the adherent mucins may be responsible for mucosal defense, healing, and repair. PMID: 16786324
- PPARgamma may be involved in the gastric mucosal defense through regulating TFF2 expression PMID: 17118693
- Gastrin regulates TFF2 transcription through a GC-rich DNA-binding site and a protein kinase dependent pathway. PMID: 17332476
- CXCR4 as a bona fide signaling receptor for TFF2 and suggest a mechanism through which TFF2 may modulate immune and tumorigenic responses in vivo. PMID: 19064997
- The researchers found evidence that H. pylori-associated CAG has a negative effect on the expression of TFF2 in the gastric antrum and may be associated with H. pylori-induced gastric mucosal damage. PMID: 19344006
- p53 induces cell apoptosis and inhibits cell migration in part by downregulating TFF2 expression through an AP-1-like site, suggesting that TFF2 may be an important downstream target of p53. PMID: 19541923
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亚细胞定位:Secreted.
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组织特异性:Stomach.
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数据库链接:
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