- 流式细胞仪检测细胞凋亡——Heochst 33342/PI双染色法
- 基本原理 经固定的凋亡细胞其染色体荧光染料的DNA可染性性下降。细胞一经固定就不再是活细胞,而且细胞固定过程对细胞膜的通透性也有影响。因此发展了用细胞活性鉴定染料染色的流式细胞仪检测方法。这些方法细胞不经固定就直接用DNA染料染色,且染料的浓度要比固定细胞...
- 作者:发表于:2006-08-18 14:22:57 点击:316 评论:0 查阅全文...
- 流式细胞仪检测细胞凋亡——PI单染色法
- 基本原理 其原理主要是根据细胞凋亡时在细胞、亚细胞和分子水平上所发生的特征性改变。这些改变包括细胞核的改变、细胞器的改变、细胞膜成分的改变和细胞形态的改变等,其中细胞核的改变最具特征性,主要包括以下几个方面: 1. 细胞核的改变:由于凋亡细胞核的改变,造...
- 作者:发表于:2006-08-18 14:22:17 点击:315 评论:0 查阅全文...
- Neutralizing Bioassay Protocols
- Neutralizing Bioassay Protocols Introduction Antibodies that block binding of cytokines to their specific receptors and neutralize their effects are critical in studies of cytokine function. The following three protocols describe in vitro bioassays...
- 作者:发表于:2006-08-18 13:44:16 点击:76 评论:0 查阅全文...
- In Vitro T Cell Activation
- In Vitro T Cell Activation Introduction Mature T cells recognize and respond to the antigen/MHC complex through their antigen-specific receptors (TCR). The most immediate consequence of TCR activation is the initiation of signaling pathways includin...
- 作者:发表于:2006-08-18 05:43:14 点击:78 评论:0 查阅全文...
- Pheromone Halo Assay
- REFERENCE: Hoffman, G., Garrison, T. R., and Dohlman, H. G., Analysis of RGS proteins in Saccharomyces cerevisiae , Methods Enzymol. 344:617-631, 2002. -Use sterile technique and sterile solutions throughout this method.- 1. Grow a starter culture a...
- 作者:发表于:2006-08-18 13:42:21 点击:44 评论:0 查阅全文...