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

• 论著 • Previous Articles     Next Articles

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

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