首页> 外文期刊>Journal of Neuroscience Methods >Immunolabeling recovery in archival, post-mortem, human brain tissue using modified antigen retrieval and the catalyzed signal amplification system.
【24h】

Immunolabeling recovery in archival, post-mortem, human brain tissue using modified antigen retrieval and the catalyzed signal amplification system.

机译:使用修饰的抗原检索和催化信号放大系统在档案,验尸,人脑组织中进行免疫标记恢复。

获取原文
获取原文并翻译 | 示例
           

摘要

Human brain tissue is a valuable source of material for research. It is often stored indefinitely in formalin at room temperature which may weaken the immunolabeling with formalin-sensitive antibodies. The present study found that a novel protocol that combined citrate and formic acid pre-treatments with the catalyzed signal amplification (CSA) system was able to recover the lost or weakened immunolabeling with the formalin-sensitive antibodies, anti-CD34, anti-caveolin, anti-P-glycoprotein, anti-neuronal nuclei, anti-parvalbumin, anti-human leukocyte antigen, anti-CD45, anti-CD68 and anti-connexin 43, in post-mortem, human brain tissue that was stored in formalin for up to 10 years at room temperature. Recovered immunolabeling in long-fixed tissue resembled immunolabeling observed in tissue that was fixed for a shorter duration between 6 and 49 days. The findings from this study highlight the importance of testing antibodies for formalin fixation effect prior to studies, especially if long-fixed tissue is used, to enable immunolabeling to be more accurately interpreted. Importantly, this study provides a method of overcoming formalin-masking of antigens in long-fixed human tissue, thus allowing essential immunohistochemical studies to be undertaken using precious human tissue.
机译:人脑组织是用于研究的有价值的材料来源。它通常在室温下无限期地储存在福尔马林中,这可能会削弱对福尔马林敏感抗体的免疫标记。本研究发现,将柠檬酸和甲酸预处理与催化信号放大(CSA)系统相结合的新方案能够恢复对福尔马林敏感的抗体,抗CD34,抗小窝酚的免疫标记的丢失或减弱。抗-P-糖蛋白,抗神经核,抗小白蛋白,抗人白细胞抗原,抗CD45,抗CD68和抗连接蛋白43在死后的人脑组织中储存在福尔马林中,保存时间最长可达在室温下放置10年。在长期固定的组织中恢复的免疫标记类似于在固定的6至49天之间较短的时间内观察到的免疫标记。这项研究的结果突出了在研究之前测试抗体对福尔马林固定效果的重要性,特别是如果使用了长固定组织的话,则可以更准确地解释免疫标记。重要的是,这项研究提供了一种克服人类长期固定的组织中抗原被福尔马林掩盖的方法,从而允许使用珍贵的人类组织进行必要的免疫组织化学研究。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号