Jong-Mu Kim, Yeoung-Gyu Ko, Hwan-Hoo Seong, Hak-Jae Chung, Won-Kyong Chang, Nam-Hyung Kim
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영어(ENG)
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https://www.earticle.net/Article/A90213
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During early embryo development, Oct-4 is an important transcription factor for the early differentiation. The present study was first examined methylation status in distal enhancer and promoter region of Oct-4 during mouse pre-implantation embryo development. In oocyte and sperm, high methylation was observed in both distal and proximal of promoter in Oct-4. Following fertilization, relatively high methylation level remained until 8-cell stage embryos, but decreased at the morula and blastocyst stage. Specific gene knock down of Oct-4 by siRNA injection into zygote induced higher methylation rates of both distal and proximal region ofpromoter of Oct-4. These results suggest a functional link between the DNA methylation status of distal and promoter region in the Oct-4 gene and the gene sequence-specific transcriptional silencing by exogenous siRNA injection during mouse pre- implantation embryos.
목차
ABSTRACT INTRODUCTION MATHRIALS AND METHODS Coiiection of Mouse Embryo and Sperm RNAi Injection Genomic DNA Preparation DNA Methylation Analtsis followed by Bi-sulfite Sequencing Real Time RT-PCR RESULTS DNA Methylation Statue of the 5'Flanking Region of the Oct-4 Gene Specific of Oct-4 mRNA by siRNA Injection Alterration of Methylation Patterns by siRNA Injection DISCUSSION REFERENCES
Jong-Mu Kim [ National Research Laboratory of Molecular Embryology, Department of Animal Sciences Chungbuk National University, Animal Biotechnology Division, National Livestock Research Institute ]
Yeoung-Gyu Ko [ Animal Biotechnology Division, National Livestock Research Institute ]
Hwan-Hoo Seong [ Animal Biotechnology Division, National Livestock Research Institute ]
Hak-Jae Chung [ Animal Biotechnology Division, National Livestock Research Institute ]
Won-Kyong Chang [ Animal Biotechnology Division, National Livestock Research Institute ]
Nam-Hyung Kim [ National Research Laboratory of Molecular Embryology, Department of Animal Sciences Chungbuk National University ]
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