Improvement and Evaluation of High Throughput Fluctuation Ames Test Using 384-well Plate with Salmonella typhimurium TA100 and TA98
-
- Sui Hajime
- Division of Genetic Toxicology, Hatano Research Institute, Food and Drug Safety Center
-
- Kawakami Kumiko
- Division of Genetic Toxicology, Hatano Research Institute, Food and Drug Safety Center
-
- Sakurai Noriko
- Division of Genetic Toxicology, Hatano Research Institute, Food and Drug Safety Center
-
- Hara Takumi
- Division of Genetic Toxicology, Hatano Research Institute, Food and Drug Safety Center
-
- Nohmi Takehiko
- National Institute of Health Sciences
この論文をさがす
説明
Recently, it has become necessary to increase the progress of research studies into drug discovery because of the introduction of combinatorial chemistry and robotics. Therefore, genotoxicity screening assays which can be conducted with a small amount of compound, in a short time, and which can predict the results of regulatory genotoxicity tests for pharmaceuticals are required in the early stage of research. The bacterial reverse mutation test (Ames test) is a regulatory genotoxicity test and is conducted in the early stage of non-clinical safety studies. Morita established a high throughput fluctuation Ames test using 384-well plates with Salmonella typhimurium TA100 and TA98 (Environ. Mutagen Res. 2003, 25: 23-31), which is referred to as original FAT in the present study. Here, we report an improved high throughput fluctuation Ames test (improved FAT). The improved FAT indicated a higher positive response than the original FAT in several mutagens. Furthermore, we evaluated the improved FAT with TA100 and TA98 using 40 National Toxicology Program (NTP) chemicals. As a result, there was 80.0% (32/40) concordance between the Ames test and the improved FAT. In conclusion, the improved FAT can predict the results of the Ames test with high concordance (especially its negative specificity). The improved FAT requires a much smaller amount of test chemicals than the Ames test (i.e., 5 mg vs 100 mg when using two tester strains) and is able to be automated. Thus, the improved FAT is considered to be useful as a screening test in the early stage of drug discovery.<br>
収録刊行物
-
- Genes and Environment
-
Genes and Environment 31 (2), 47-55, 2009
日本環境変異原学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001205257589376
-
- NII論文ID
- 130004481167
- 10025925969
-
- NII書誌ID
- AA1212552X
-
- ISSN
- 18807062
- 18807046
-
- NDL書誌ID
- 10242389
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可