›› 2011, Vol. 23 ›› Issue (1): 31-034.doi: 10.3969/j.issn.1004-616x.2011.01.008

• 论著 • 上一篇    下一篇

CHO细胞体外微核高内涵筛选方法的建立及应用

周 飞,林海霞,常 艳*   

  1. 国家上海新药安全评价研究中心,上海
  • 收稿日期:2010-05-28 修回日期:2010-10-25 出版日期:2011-01-30 发布日期:2011-01-30
  • 通讯作者: 常 艳

Evaluation of micronucleus with CHO cells using high throughput screening

ZHOU Fei,LIN Hai-xia, CHANG Yan*   

  1. National Shanghai Center for New Drug Safety Evaluation and Research, Shanghai
  • Received:2010-05-28 Revised:2010-10-25 Online:2011-01-30 Published:2011-01-30
  • Contact: CHANG Yan

摘要: 探讨微核试验高内涵筛选方法在遗传毒性评价中的应用价值,建立简便、经济、快速、高效的微核试验高通量筛选方法。应用微核高内涵筛选方法对已知的遗传毒性阳性物质进行验证分析。 方法: 选择8种典型的断裂剂或非整倍体诱导剂进行试验。应用Cellomics ArrayScan高内涵筛选系统检测药物诱发的CHO细胞微核发生率。 结果: 苯并芘在25.15和50.3 μg/ml可诱发微核显著增加(P<0.05);依托泊苷在0.16~20 μg/ml浓度范围均可诱发微核发生率显著增加(P<0.01),在1.25~20 μg/ml浓度,细胞存活率低于50%;2-氨基芴在0.1~1.26 μg/ml的浓度范围内微核发生率和阴性对照组相比差异均无统计学意义(P>0.05);2-氨基蒽在6.44、12.88、25.75和51.5 μg/ml,秋水仙素在0.08 ~20.4 μg/ml,甲基磺酸乙酯在0.754、1.509和3.018 mg/ml,氯化铬在2.344 μg/ml,甲基磺酸甲酯在0.101 mg/ml浓度时,均可诱发CHO细胞微核发生率显著增加(P<0.05或P<0.01)。 结论: 微核高内涵筛选方法可以满足快速、高效、经济、可靠检测微核的要求。

关键词: 微核, 高内涵筛选, CHO细胞, 遗传毒性

Abstract: To examine the value of micronucleus high throughput screening method in micronucleus assay and develop an effective, economical, simple and fast micronucleus high throughput screening method. METHODS: To evaluate micronucleus rate with CHO cells using AssayScan High Throughput Screening system. RESULTS: B[α]P could induce micronucleus formation significantly at 25.15 μg/ml and 50.3 μg/ml. Etoposide significantly induced micronucleus formation between 0.16 μg/ml and 20 μg/ml concentrations; between 1.25 μg/ml and 20 μg/ml, cell viability was less than 50%. 2-anthramine could significantly induce micronucleus formation at 6.44 μg/ml, 12.88 μg/ml, 25.75 μg/ml and 51.5 μg/ml. Colchicine significantly induced micronucleus formation between 0.08 μg/ml and 20.4 μg/ml. EMS significantly induced micronucleus formation at 0.754 mg/ml, 1.509 mg/ml and 3.018 mg/ml. Chromium Chloride significantly induced micronucleus formation at 2.344 μg/ml. Whilst MMS could significantly induce micronucleus formation at 0.101 mg/ml. CONCLUSION: Micronucleus high throughput screening method could satisfy the requirement for an effective, economical, reliable and fast screening method.

Key words: micronucleus, high throughput screening, CHO cell, genotoxicity