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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Koyama, Masayasu Kitada, Kohei Kizu, Akane Takehara, Toshiyuki Hayashi, Masami Tachibana, Daisuke Morita, Takashi Teramura, Takeshi Yoshida, Kayo Wanibuchi, Hideki Fukushima, Shoji |
| Description | Country affiliation: Japan Author Affiliation: Kitada K ( Department of Obstetrics and Gynecology, Osaka City University, Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan.); Kizu A ( Department of Molecular Genetics, Osaka City University, Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan.); Teramura T ( Institute of Advanced Clinical Medicine, Faculty of Medicine, Kindai University, 377-2 Onohigashi, Sayama, Osaka, 589-8511, Japan.); Takehara T ( Institute of Advanced Clinical Medicine, Faculty of Medicine, Kindai University, 377-2 Onohigashi, Sayama, Osaka, 589-8511, Japan.); Hayashi M ( Department of Obstetrics and Gynecology, Osaka City University, Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan.); Tachibana D ( Department of Obstetrics and Gynecology, Osaka City University, Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan.); Wanibuchi H ( Department of Pathology, Osaka City University, Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan.); Fukushima S ( Japan Bioassay Research Center, 2445 Hirasawa, Hadano, Kanagawa, 257-0015, Japan.); Koyama M ( Department of Obstetrics and Gynecology, Osaka City University, Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan.); Yoshida K ( Department of Molecular Genetics, Osaka City University, Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. k-yoshida@med.osaka-cu.ac.jp.); Morita T ( Department of Molecular Genetics, Osaka City University, Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan.) |
| Abstract | A high-throughput test of cell growth inhibition was performed using mouse embryonic stem (ES) cells to assess chemical toxicities. We herein demonstrated using a 96-well culture plate approach and the MTT assay that this method was suitable for prioritization of chemicals for their cytotoxic properties. In order to categorize chemicals, we used p53 gene-modified mouse ES cells as well as wild-type ES cells. The p53 gene is a well-known tumor suppressor and controls programmed cell death (apoptosis) and cellular senescence that is triggered by DNA-damaging agents such as alkylating agents and radiation. In the present study, p53-deficient ES cells were found to be more resistant to a tumor initiator, diethylnitrosamine (DEN), than wild-type ES cells, suggesting the inhibition of apoptosis or senescence by a dysfunction in p53. Chromosome aberrations were more frequently detected in p53-deficient ES cells than in wild-type cells, indicating genomic instability due to the deletion of p53. Other tumor initiators, methyl methanesulfonate (MMS) and N-methyl-N-nitrosourea (NMU), did not reveal apparent differences in cytotoxicity between wild-type and p53-deficient ES cells. Thus, ES test system using gene-modified ES cells may be used to categorize chemicals by detecting their characteristic effects on apoptosis, genotoxic potentials as well as general cytotoxicity. |
| ISSN | 09441344 |
| Issue Number | 22 |
| Volume Number | 22 |
| e-ISSN | 16147499 |
| Journal | Environmental Science and Pollution Research |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2015-11-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Apoptosis Drug Effects Genetics Embryonic Stem Cells Toxicity Tests Methods Tumor Suppressor Protein P53 Animals Cells, Cultured Dna Damage Diethylnitrosamine Toxicity Mice Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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