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常用细胞房操作
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==12孔板CELL铺板(给药用)== #细胞类型:肿瘤细胞(人源)(贴壁cell) #操作 ##取培养皿,弃去培养基,加入2ml PBS清洗,弃去 ##加入2 mL胰酶,37 ℃消化2 min。 ##加含血清培养基2 mL(终止胰酶消化),转移至EP管中,离心,弃去上清, ##加入培养基重悬,先向12孔板中每一孔加入0.5 mL含血清培养基,再添加0.5 mL cell重悬液(培养基)。先铺1孔,显微镜观察密度,根据需求调整重悬液或稀释液的体积。轻微晃匀,注明cell、操作、日期。 ##37℃孵育过夜。过夜后,细胞密度达到70-80%时给药。 #备注: ##铺板前可以先在试管中混匀cell再铺板,更均匀。 ##贴壁cell可通过增加培养基用量,给与更多营养物质,促进cell生长。但是培养基不能太多,会影响气体交换。可以12孔板 1ml变为1.5ml。 ##胰酶消解时间取决于cell种类。过度消化会导致细胞膜蛋白损伤,影响细胞膜完整性和细胞贴壁;过度消化可能会使细胞聚集成团,需后续操作吹散,否则会影响细胞状态;过度消化会影响细胞表面受体的功能和完整性,从而影响细胞正常信号传导和功能表达。 ##一般一皿长满的肿瘤细胞可铺3块板(6 12 24孔板),但是96孔板周围一圈的只添加PBS,仅在中心的60个孔铺细胞,60孔共铺约1/10 or 1/12 or 1/15皿细胞。因为本次实验的人源细胞生长比较慢,所以一皿cell铺2.5块板 ##贴壁cell给药前一晚需进行12孔板铺板,过夜,目的是为了让cell贴壁生长。 ##无血清培养基-cell处于饥饿状态-自噬加强
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