重组人粒细胞集落刺激因子生物学活性测定方法研究

目的用世界卫生组织国际标准品粒细胞集落刺激因子 (G CSF)生物学活性标准品研究NFS 6 0细胞测定重组人粒细胞集落刺激因子 (rhG CSF)生物学活性的方法。方法采用溴化四唑蓝 (MTT)染色法。结果NFS 6 0细胞染色体为 39条 ;细胞数在 1× 10 5～ 1× 10 7个 /ml间MTT染色显示梯度 ;将 (4 ,4)法引入rhG CSF生物学活性的测定 ,单次实验结果的平均可信限率为 13.5 6 0 % ,(4 ,4)法测定rhG CSF生物学活性的批内CV <10 % ,批间CV为 10 .10 9%。结论 (4 ,4)法可用于rhG CSF生物学活性的测定 ,对测定方法标准化后 ,测定结果可准确、有效地指导rhG CSF的生产和研究。

Study on determination method of the rhG-CSF biological activity

Purpose　The determination method of rhG-CSF bio logical activity by NFS-60 cells was studied in accordance with WHO internation al standard for G-CSF.Methods　MTT method was adopted.R esults　The chomosone number of NFS-60 cell was 39, about 1×105 cells/ml to 1×107 cells/ml,the dying color showed gradient when the NFS-60 c ells was dyed by MTT,the method(4,4) was adopted in the determination of rhG-CS F biological activity,the average FL% of potency was 13.560% for single exprimen t,and the CV of inter-assay and intra-assay was lower than 10% and 10.109%,respectively.Conclusion　method(4,4) can be us ed in the determination of rhG-CSF biological activity,and the results can guid e the study and the manufacture of rhG-CSF effectively.