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肠道屏障通过保护机体不吸收过量细菌,在维持肠道内环境平衡方面发挥着重要作用。分泌性免疫球蛋白如IgA,IgG,IgM参与协助保护肠道系统。
Chondrex 公司提供小鼠肠道灌洗液制备的标准流程,同时提供用于检测总免疫球蛋白水平和肠道抗原的抗体检测试剂盒。肠道抗原的抗体水平反映肠功能的免疫状态。例如,口服免疫卵清蛋白(OVA)和霍乱毒素佐剂能够增强肠道针对卵清蛋白的 IgA抗体水平。可以通过对比卵清蛋白IgA的抗体水平和总IgA抗体水平评价肠道系统对OVA的免疫应答。
Chondrex 公司提供特殊抗原、细菌、毒素相关抗体检测试剂盒。
小鼠肠道灌洗液样本制备操作流程:
1)取出整个小鼠小肠并夹住小肠的一端(可以使用剪刀钳)。
2)用带有聚四氟乙烯导管的注射器小心地将3毫升蛋白酶抑制剂溶液(0.1mg/ml 胰蛋白酶抑制剂,50mM EDTA和1mM PMSF,溶于PBS )注入肠道,以避免刺穿肠道。
3)夹住肠的另一端。
3)室温孵育10min
5)将肠道内容物转到检测管。
6)强力涡旋和超声处理。
7)1800rpm 4℃离心10min
8)取上清到新管,每1ml灌洗液加入10ul叠氮钠(0.1%)。
9)室温孵育15min
10)每1ml灌洗液加入50ml山羊血清。样本混合液与样本稀释液1:1混合,可用于ELISA实验检测。
产品订购
产品名称 | 英文名称 | 货号 |
小鼠抗大肠杆菌IgM抗体试剂盒 | Mouse Anti E. coli IgM Antibody Assay Kit | 6209 |
小鼠抗大肠杆菌IgG抗体试剂盒 | Mouse Anti E. coli IgG Antibody Assay Kit | 6206 |
小鼠抗大肠杆菌IgG1抗体试剂盒 | Mouse Anti E. coli IgG1 Antibody Assay Kit | 6207 |
小鼠抗大肠杆菌IgG2a抗体试剂盒 | Mouse Anti E. coli IgG2a Antibody Assay Kit | 6210 |
小鼠抗大肠杆菌IgG2b抗体试剂盒 | Mouse Anti E. coli IgG2b Antibody Assay Kit | 6211 |
小鼠抗大肠杆菌IgG3抗体试剂盒 | Mouse Anti E. coli IgG3 Antibody Assay Kit | 6212 |
小鼠抗尘螨IgA抗体试剂盒 | Mouse Anti-HDM IgA Antibody Assay Kit | 3046 |
小鼠抗尘螨IgE抗体试剂盒 | Mouse Anti-HDM IgE Antibody Assay Kit | 3037 |
小鼠抗尘螨IgM抗体试剂盒 | Mouse Anti-HDM IgM Antibody Assay Kit | 3036 |
小鼠抗尘螨IgG抗体试剂盒 | Mouse Anti-HDM IgG Antibody Assay Kit | 3030 |
小鼠抗尘螨IgG1抗体试剂盒 | Mouse Anti-HDM IgG1 Antibody Assay Kit | 3034 |
小鼠抗尘螨IgG2a抗体试剂盒 | Mouse Anti-HDM IgG2a Antibody Assay Kit | 3038 |
小鼠抗尘螨IgG2b抗体试剂盒 | Mouse Anti-HDM IgG2b Antibody Assay Kit | 3035 |
小鼠抗尘螨IgG3抗体试剂盒 | Mouse Anti-HDM IgG3 Antibody Assay Kit | 3039 |
小鼠抗大肠杆菌脂多糖IgG抗体试剂盒 | Mouse Anti-E. coli LPS IgG Antibody Assay Kit | 6106 |
小鼠抗大肠杆菌脂多糖IgG1抗体试剂盒 | Mouse Anti-E. coli LPS IgG1 Antibody Assay Kit | 6107 |
小鼠抗大肠杆菌脂多糖IgG2a抗体试剂盒 | Mouse Anti-E. coli LPS IgG2a Antibody Assay Kit | 6110 |
小鼠抗大肠杆菌脂多糖IgG2b抗体试剂盒 | Mouse Anti-E. coli LPS IgG2b Antibody Assay Kit | 6111 |
小鼠抗卵清蛋白IgA试剂盒 | Mouse Anti-OVA IgA Antibody Assay Kit | 3018 |
小鼠抗卵清蛋白IgE试剂盒 | Mouse Anti-OVA IgE Antibody Assay Kit | 3010 |
小鼠抗卵清蛋白IgM试剂盒 | Mouse Anti-OVA IgM Antibody Assay Kit | 3017 |
小鼠抗卵清蛋白IgG试剂盒 | Mouse Anti-OVA IgG Antibody Assay Kit | 3011 |
小鼠抗卵清蛋白IgG1试剂盒 | Mouse Anti-OVA IgG1 Antibody Assay Kit | 3013 |
小鼠抗卵清蛋白IgG2a试剂盒 | Mouse Anti-OVA IgG2a Antibody Assay Kit | 3015 |
小鼠抗卵清蛋白IgG2b试剂盒 | Mouse Anti-OVA IgG2b Antibody Assay Kit | 3016 |
小鼠抗卵清蛋白IgG2c试剂盒 | Mouse Anti-OVA IgG2c Antibody Assay Kit | 3029 |
小鼠抗葡萄球菌肠毒素A IgG试剂盒 | Mouse Anti-SEA IgG Antibody Assay Kit | 6218 |
小鼠抗葡萄球菌肠毒素A IgG1试剂盒 | Mouse Anti-SEA IgG1 Antibody Assay Kit | 6219 |
小鼠抗葡萄球菌肠毒素A IgG2a试剂盒 | Mouse Anti-SEA IgG2a Antibody Assay Kit | 6220 |
小鼠抗葡萄球菌肠毒素A IgG2b试剂盒 | Mouse Anti-SEA IgG2b Antibody Assay Kit | 6221 |
小鼠抗葡萄球菌肠毒素B IgG试剂盒 | Mouse Anti-SEB IgG Antibody Assay Kit | 6214 |
小鼠抗葡萄球菌肠毒素B IgG1试剂盒 | Mouse Anti-SEB IgG1 Antibody Assay Kit | 6215 |
小鼠抗葡萄球菌肠毒素B IgG2a试剂盒 | Mouse Anti-SEB IgG2a Antibody Assay Kit | 6216 |
小鼠抗葡萄球菌肠毒素B IgG2b试剂盒 | Mouse Anti-SEB IgG2b Antibody Assay Kit | 6217 |
小鼠总IgA抗体试剂盒 | Mouse Total IgA Antibody Detection Kit | 3019 |
小鼠总IgE抗体试剂盒 | Mouse Total IgE Antibody Detection Kit | 3005 |
小鼠总IgM抗体试剂盒 | Mouse Total IgM Antibody Detection Kit | 3024 |
小鼠总IgG抗体试剂盒 | Mouse Total IgG Antibody Detection Kit | 3023 |
小鼠总IgG1抗体试剂盒 | Mouse Total IgG1 Antibody Detection Kit | 3025 |
小鼠总IgG2a抗体试剂盒 | Mouse Total IgG2a Antibody Detection Kit | 3026 |
小鼠总IgG2b抗体试剂盒 | Mouse Total IgG2b Antibody Detection Kit | 3027 |
小鼠总IgG3抗体试剂盒 | Mouse Total IgG3 Antibody Detection Kit | 3028 |
参考文献:
1. Tana, S. Watarai, E. Isogai, and K. Oguma. Induction of intestinal IgA and IgG antibodies preventing adhesion of verotoxinproducing Escherichia coli to Caco-2 cells by oral immunization with liposomes. Lett Appl Microbiol 36, 135-139 (2003).
2. M. C. Thurnheer, A. Zuercher, J. Cebra, and N. Bos. B1 cells contribute to serum IgM, but not to intestinal IgA, production in gnotobiotic Ig allotype chimeric mice. J Immunol 170, 4564-4571 (2003).
3. S. Senda, E. Cheng, and H Kawanishi. IgG in murine intestinal secretions. Aging effect and possible physiological role. Scand J Immunol 29, 41-47 (1989).
4. N. Lycke, L. Erlandsson, L. Ekman, K. Schon, and T. Leanderson. Lack of J chain inhibits the transport of gut IgA and abrogates the development of intestinal antitoxic protection. J Immunol 163, 913-919 (1999).