http://www.liankebio.com/article-information_Newsletter-1347.html
作者:eBioscience官网 发布日期:2013-07-31 15:00
评价任何生物系统,最重要的是用抗体、蛋白或者小分子 在细胞和组织水平,以及整个生物体模型中 模仿和/或 抑制相关的通路。
使用这些生物分析工具,使得生命科学研究者得意开发生物系统并检验:
? 通过受体-配体相互作用起始信号的级联放大;
? 诱导细胞活化、分化、迁移和存活;
? 表达特殊的表面和功能表型;
? 蛋白表达样式评估。
eBioscience功能型抗体的优点:
? 具有活化、阻断和中和的功能活性;
? 相比产业标准显著更低的内毒素水平;
? 体内体外应用均不含防腐剂。
T细胞活化抗体
完全活化的T细胞至少需要2个信号。第一信号是TCR捕获抗原递呈细胞通过MHC递呈的肽,第二信号是在T细胞表面表达的共刺激分子与APC上配体结合时产生。这些活化信号一起被传递到T细胞的核内并且产生以下效应:
1) T 细胞的克隆扩增;
2) T细胞表面活化marker的上调;
3) 在其他因素存在时分化为效应性细胞;
4) 诱导细胞毒性和细胞因子分泌;
5) 诱导凋亡。评估T细胞活化的常用方法是通过TCR的竞争性抗体体外刺激T细胞并检测T细胞增殖。
T Cell Activation |
Antibodies |
Clone |
Cat. No. |
Anti-Human CD3 Functional Grade Purified* |
HIT3a |
85-16-0039 |
Anti-Human CD3 Functional Grade Purified* |
OKT3 |
85-16-0037 |
Anti-Human CD3 Functional Grade Purified |
SK7 |
85-16-0036 |
Anti-Human CD3 Functional Grade Purified |
UCHT1 |
85-16-0038 |
Anti-Human CD28 Functional Grade Purified* |
CD28.2 |
85-16-0289 |
Anti-Human CD28 Functional Grade Purified |
CD28.6 |
85-16-0288 |
Anti-Mouse CD3e Functional Grade Purified* |
145-2C11 |
85-16-0031 |
Anti-Mouse CD3e Functional Grade Biotin |
145-2C11 |
85-36-0031 |
Anti-Mouse CD3 Functional Grade Purified |
17A2 |
85-16-0032 |
Anti-Mouse CD3e Functional Grade Purified |
eBio500A2 |
85-16-0033 |
Anti-Mouse CD28 Functional Grade Purified* |
37.51 |
85-16-0281 |
Anti-Rat CD3 Functional Grade Purified |
eBioG4.18 |
85-16-0030 |
Anti-Rat CD28 Functional Grade Purified |
JJ319 |
85-16-0280 |
Small Molecules |
|
|
Cell Stimulation Cocktail (500X) |
-- |
85-00-4970 |
Cell Stimulation Cocktail (plus protein transport inhibitors)(500X) |
-- |
85-00-4975 |
|
B细胞活化
与T细胞活化一样,B细胞的活化同样也需要2个信号。第一信号来自于B细胞受体与其同源的抗原结合。这个信号可以用anti-IgM或IgD抗体来模仿。第二信号来自于CD40或者细胞因子信号与共刺激分子结合。或者,细菌的细胞壁成分,如LPS,以及具有高度重复分子的抗原也可以直接活化B细胞。
B Cell Activation |
Antibodies |
Clone |
Cat. No. |
Anti-Mouse lgD Functional Grade Purified |
10.4.22 |
85-16-5924 |
Anti-Mouse lgD antiserum |
polyclonal |
85-24-5093 |
Anti-Mouse lgM μ-chain |
polyclonal |
85-24-5092 |
Anti-Mouse CD40 Functional Grade Purified |
1C10 |
85-16-0401 |
Anti-Mouse/Rat CD40 Functional Grade Purified |
HM40-3 |
85-16-0402 |
Anti-Human CD40 Functional Grade Purified |
5C3 |
85-16-0409 |
Anti-Mouse CD180(RP105) Functional Grade Purified |
RP/14 |
85-16-1801 |
Anti-Human CD180(RP105) Functional Grade Purified |
MHR73-11 |
85-16-1809 |
Recombinant Proteins |
Cat.No. |
Human CD257(BAFF)Recombinant Protein |
85-14-8943 |
Mouse IFN gamma Recombinant Protein |
85-14-8311 |
85-34-8311 |
Human IFN gamma Recombinant Protein |
85-14-8319 |
85-34-8319 |
Mouse IL-4 Recombinant Protein |
85-14-8041 |
85-34-8041 |
Human IL-4 Recombinant Protein |
85-14-8049 |
85-34-8049 |
Mouse IL-5 Recombinant Protein |
85-14-8051 |
85-34-8051 |
Mouse TGF-beta 1 Recombinant Protein |
85-14-8342 |
85-34-8342 |
Human TGF-beta 1 Recombinant Protein |
85-14-8349 |
85-34-8349 |
|