Wu Jinyun, Cai Yuqi, Wu Xiaoyang, Ying Yue, Tai Yilin, He Miao
Institutes of Brain Sciences, Fudan University, Shanghai 200032, China.
Bio Protoc. 2021 Mar 5;11(5):e3988. doi: 10.21769/BioProtoc.3988.
Transcardiac perfusion with saline followed by 4% paraformaldehyde (PFA) is widely used to clear blood and preserve brain for immunostaining or hybridization. PFA breaks into formaldehyde in solution, which cross-link protein and DNA molecules to preserve tissue and cell structure. Here we provide a step by step guide for performing this procedure in mouse.
先用生理盐水进行经心灌注,然后用4%多聚甲醛(PFA)灌注,这一方法被广泛用于清除血液并保存大脑,以进行免疫染色或杂交。PFA在溶液中分解为甲醛,甲醛可交联蛋白质和DNA分子以保存组织和细胞结构。在此,我们提供一份在小鼠中进行该操作的分步指南。