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Reproduction, Fertility and Development Reproduction, Fertility and Development Society
Vertebrate reproductive science and technology
RESEARCH ARTICLE

304 THE DEVELOPMENTAL TOXICITY EVALUATION OF 5-FLUOROURACIL AND INDOMETHACIN IN HUMAN EMBRYONIC STEM CELLS

E. M. Jung A and E. B. Jeung A
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Laboratory of Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea

Reproduction, Fertility and Development 25(1) 299-299 https://doi.org/10.1071/RDv25n1Ab304
Published: 4 December 2012

Abstract

Embryonic stem cells have pluripotency and differentiate into and constitute the cells and tissues of our body. In this study, using human embryonic stem cells (hESC), we evaluated novel methods for screening toxicological chemicals during developmental process. We elucidated developmental toxicity of two well-known chemicals, 5-fluorouracil (5-FU) and indomethacin (Indo) in hESC. The undifferentiated hESC were treated with the chemicals (10–4 to 104 µM of 5-FU and Indo) in a dose-dependent manner during 1 to 3 days. Surface markers (SSEA-4, TRA-1-60, and TRA-1-81) expressed only in undifferentiated hESC were monitored by immunocytochemistry to ensure the characterisation of undifferentiated hESC. Moreover, expression of embryonic stem cell-specific genes was assessed with real-time PCR after treatment of 5-FU and Indo (10–2, 100, and102 µM of 5-FU and Indo). The expression of surface markers was not significantly affected by treatment of 5-FU and Indo. The expression of transcription factors (Oct-4, Sox-2, Nanog, and hTERT) was significantly decreased by high concentrations of 5-FU and Indo (102 µM). However, no difference was observed in treatment of low concentration of 5-FU and Indo (10–2 µM). Taken together, these results suggest that 5-FU and Indo have cytotoxic effects, and modulate the expression of transcription factors that have pivotal roles in undifferentiated hESC. Therefore, we suggest that hESC may have potential to test toxicity of chemicals during embryonic developmental stage.