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Can the same batch of PBS used for culturing cells and raising animals in the laboratory be shared?

Compliance
Asked by:ResearchHub8536 2026-09-15 Views 217 4 answers
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All Answers4
M
Media7780 2026-09-19
共用原则上可行,但基础条件是无钙镁、无酚红、内毒素水平较低的PBS母液。细胞培养对无菌和热原敏感,动物实验耐受范围更宽,所以选细胞培养级PBS向下兼容动物通常更稳;反过来把动物房用过或开封污染的液体拿回细胞间,风险很高。共用的关键是分区取用和防止交叉污染。
O
Oscar 2026-09-24
离子成分方面,无钙镁PBS对细胞消化和动物冲洗都更通用;如果含EDTA或其他螯合剂,细胞实验可能影响酶切和信号通路,动物冲洗伤口或稀释麻醉药也可能有额外变量。内毒素对细胞功能影响较大,动物注射或灌流时高内毒素可能造成炎症反应,因此共用前最好看COA是否有内毒素检测数据。
曹
曹抗体8274 2026-09-13
实操上建议:采购同一批10×母液后,在细胞间统一按无菌操作稀释、过滤除菌并分装。动物房领用当日或短期用量,动物房开瓶后不要再送回细胞间。首次切换时不要全部替代旧体系,可做一轮细胞形态观察和内毒素检测,动物实验也先小范围试用,确认没有异常再全面统一。10×母液稀释比例要精确,建议用容量瓶或注射器量取,避免稀释误差。
孙
孙学生 2026-09-11
稀释时用的水非常关键。10×PBS母液用于细胞间,建议用注射用水、细胞培养级超纯水或无热原水,不建议用普通纯水甚至自来水。普通纯水可能含有离子、有机污染物或热原,稀释后虽然过滤除菌,但不能有效去除全部内毒素,可能影响细胞状态。动物房也至少用纯化水或蒸馏水,避免使用未经处理的水。
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