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| 货号 | EK1836 |
|---|---|
| 产品名称 | Rat REG3A PicoKine ELISA Kit |
| 产品描述 | For quantitative detection of rat REG3A in cell culture supernates, serum and plasma (heparin). |
| 免疫原 | NSO, E26-Q174 |
| 交叉反应 | There is no detectable cross-reactivity with other relevant proteins. |
| 敏感性 | <10pg/ml |
| 检测范围 | 15.6pg/ml-1000pg/ml |
| 基因名称 | Reg3a |
| 基因全名 | regenerating islet-derived 3 alpha |
| Uniprot ID | P35231 |
| 指标别名 | Regenerating islet-derived protein 3-alpha; REG-3-alpha; Islet of Langerhans regenerating protein 3; REG 3; Lithostathine 3; Pancreatitis-associated protein 2; RegIII; Regenerating islet-derived protein III-alpha; Reg III-alpha; Reg3a; Pap2; Reg3 |
| 背景资料 | Regenerating islet-derived protein 3 alpha for merly known as HIP/PAP (Hepatocarcinoma-Intestine-Pancreas/Pancreatitis-Associated Protein) and peptide 23 is a protein that in humans is encoded by the REG3A gene. This gene is mapped to 4q33. PAP is a secretory protein not normally expressed in healthy pancreas but highly induced during acute pancreatitis. While PAP has been shown to be anti-bacterial and antiapoptotic in vitro, its definitive biological function in vivo is not clear. Using antisepse oligonucleotides, inhibition of PAP expression significantly worsened pancreatitis in a rat model. During pancreatitis, PAP released by the pancreas could mediate lung inflammation through induction of hepatic TNF- alpha expression and subsequent increase in circulating TNFalpha. PAP is activated in primary liver cancers. In normal liver, the protein is undetectable in normal mature hepatocytes and found only in some ductular cells, representing potential hepatic progenitor cells. PAP can be considered hepatic cytokine that combines mitogenic and anti-apoptotic functions regarding hepatocytes, and consequently acts as a growth factor in vivo to enhance liver regeneration. In pancreatic cancor, PAP was overexpressed in 79% (30 of 38) of pancreatic ductal adenocarcinoma, 19% (7 of 36) of chronic pancreatitis, and 29% (2 of 7) of mucinous cystadenoma. PAP was found in malignant ductular structures in pancreatic carcinomas as well as in benign proliferating ductules and acinar cells in chronic pancreatitis. Elevation of PAP in patients with pancreatic cancer is not merely explainable by concomitant pancreatitis, but seems to be due to increased PAP production by the cancer cells and is also correlated to tumour load as expressed by the UICC stages. Epithelial expression of PAP was induced under intestinal mucosal inflammation initiated by exposure to commensal bacteria or DSS as well as inflamed IBD colon. Increased serum level of PAP diagnosed ileal location in active Crohn disease with a sensitivity of 60%, a specificity of 94%, a positive predictive value of 84% and a negative predictive value of 81%. Elevated serum PAP (> 50 ng/mL) is significantly associated with disease activity and ileal location of Crohn disease. |
| 显色时间 | 15-20 |
| SKU | 名称 | 数量 |
| Catalog number | Description | Quantity |
| EK1836-CAP | 96-well plate precoated with anti- rat REG3A antibody | 1 |
| EK1836-ST | Lyophilized recombinant rat REG3A standard | 10ng/tube×2 |
| EK1836-DA | Biotinylated anti- rat REG3A antibody | 130μl(dilution 1:100) |
| AR1103 | Avidin-Biotin-Peroxidase Complex (ABC) | 130μl(dilution 1:100) |
| AR1106-1 | Sample diluent buffer | 30 ml |
| AR1106-2 | Antibody diluent buffer | 12ml |
| AR1106-3 | ABC diluent buffer | 12ml |
| AR1104 | TMB color developing agent | 10ml |
| AR1105 | TMB stop solution | 10ml |
| PLA-SEA | Adhesive cover | 4 |
| Intra-Assay Precision | Inter-Assay Precision | |||||
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 16 | 16 | 16 | 24 | 24 | 24 |
| Mean(pg/ml) | 32 | 221 | 466 | 34 | 229 | 473 |
| Standard deviation | 1.41 | 10.4 | 25.16 | 2.14 | 15.3 | 35 |
| CV(%) | 4.4% | 4.7% | 5.4% | 6.3% | 6.7% | 7.4% |
| Concentration(pg/ml) | 0 | 15.6 | 31.2 | 62.5 | 125 | 250 | 500 | 1000 |
| O.D. | 0.037 | 0.130 | 0.201 | 0.326 | 0.649 | 1.105 | 1.604 | 2.469 |
1：准备试剂和标准品
2：每孔添加100ul样品和标准品，37℃反应90分钟，不洗。
3：每孔添加100ul生物素标记抗体，37℃反应60分钟。
4：0.01M TBS洗涤3次。
5：每孔添加100ulABC，37℃反应30分钟。
6：0.01M TBS洗涤5次。
7：TMB37℃避光反应30分钟以内。
8：加入TMB终止液，读数。
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