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DNA methylation pattern in pig in vivo produced embryos
Fulka J, Fulková H, Slavik T, Okada K, Fulka J Jr.
Language English Country Germany
NLK
SpringerLink Journals
from 2005-01-01 to 2008-12-31
ProQuest Central
from 1997-01-01 to 1 year ago
Medline Complete (EBSCOhost)
from 2000-01-01 to 1 year ago
Nursing & Allied Health Database (ProQuest)
from 1997-01-01 to 1 year ago
Health & Medicine (ProQuest)
from 1997-01-01 to 1 year ago
Public Health Database (ProQuest)
from 1997-01-01 to 1 year ago
- MeSH
- Blastocyst metabolism MeSH
- Chromatin metabolism MeSH
- Embryo, Mammalian embryology metabolism MeSH
- Financing, Organized MeSH
- DNA Methylation MeSH
- Swine MeSH
- Animals MeSH
- Zygote metabolism MeSH
- Check Tag
- Female MeSH
- Animals MeSH
DNA methylation/demethylation pattern, determined by 5-methylcytosine (5-MeC) immunostaining, was evaluated in porcine "in vivo" produced embryos from zygote up to the blastocyst stage. In one-cell stage embryos, only the maternal pronucleus showed a positive labeling whilst the paternal pronucleus showed almost no labeling. The intensity of labeling is high until the late morula stage. Blastocysts containing less than 100 cells showed the same intensity of labeling in both the inner cell mass (ICM) nuclei and the trophectodermal (TE) cell nuclei. Interestingly, with further cell multiplication, cells of the ICM became more intensively labeled when compared to TE cells. This distinct methylation pattern is even more profound in blastocysts containing about 200-300 cells and is not caused by the difference in the cell volume of ICM and TE cells.
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- $a Center for Cell Therapy and Tissue Repair, IAPG Czech Academy of Sciences, 277 21 Libechov, Czech Republic
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- $a DNA methylation/demethylation pattern, determined by 5-methylcytosine (5-MeC) immunostaining, was evaluated in porcine "in vivo" produced embryos from zygote up to the blastocyst stage. In one-cell stage embryos, only the maternal pronucleus showed a positive labeling whilst the paternal pronucleus showed almost no labeling. The intensity of labeling is high until the late morula stage. Blastocysts containing less than 100 cells showed the same intensity of labeling in both the inner cell mass (ICM) nuclei and the trophectodermal (TE) cell nuclei. Interestingly, with further cell multiplication, cells of the ICM became more intensively labeled when compared to TE cells. This distinct methylation pattern is even more profound in blastocysts containing about 200-300 cells and is not caused by the difference in the cell volume of ICM and TE cells.
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- $a financování organizované $7 D005381
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- $a blastocysta $x metabolismus $7 D001755
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