信帆生物为您提供：石蜡切片免疫荧光实验步骤

 1、 石蜡切片脱蜡至水：依次将切片放入二甲苯Ⅰ15min-二甲苯Ⅱ15min-无水乙醇Ⅰ5min-无水乙醇Ⅱ5min-85%酒精5min-75%酒精5min-蒸馏水洗。

2、 抗原修复：组织切片置于盛满EDTA抗原修复缓冲液（PH9.0）的修复盒中于微波炉内进行抗原修复。中火至沸后断电间隔10min中低火至沸，此过程中应防止缓冲液过度蒸发，切勿干片。自然冷却后将玻片置于PBS（PH7.4）中在脱色摇床上晃动洗涤3次，每次5min。(修复液和修复条件根据组织来确定）                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

3、 BSA封闭:切片稍甩干后用组化笔在组织周围画圈（防止抗体流走），在圈内滴加用3%BSA均匀覆盖组织，室温封闭30min。

4、 加一抗：轻轻甩掉封闭液，在切片上滴加PBS按一定比例配好的一抗，切片平放于湿盒内4°C孵育过夜。（湿盒内加少量水防止抗体蒸发）

5、 加二抗：玻片置于PBS（PH7.4）中在脱色摇床上晃动洗涤3次，每次5min。切片稍甩干后在圈内滴加与一抗相应种属的二抗覆盖组织，避光室温孵育50min。

6、 DAPI复染细胞核：玻片置于PBS（PH7.4）中在脱色摇床上晃动洗涤3次，每次5min。切片稍甩干后在圈内滴加DAPI染液，避光室温孵育10min。

7、 封片：玻片置于PBS（PH7.4）中在脱色摇床上晃动洗涤3次，每次5min。切片稍甩干后用抗荧光淬灭封片剂封片。

8、 镜检拍照：切片于尼康倒置荧光显微镜下观察并采集图像。（紫外激发波长330-380nm，发射波长420nm；FITC绿光激发波长465-495nm，发射波长515-555 nm；CY3红光激发波长510-560，发射波长590nm）

信帆生物为您提供：石蜡切片免疫荧光实验步骤