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Differential expression of key subunits of SWI/SNF chromatin remodeling complexes in porcine embryos derived in vitro or in vivo.

Authors
  • Cabot, Birgit1
  • Tseng, Yu-Chun1
  • Crodian, Jennifer S1
  • Cabot, Ryan1
  • 1 Department of Animal Sciences, Purdue University, West Lafayette, Indiana. , (India)
Type
Published Article
Journal
Molecular Reproduction and Development
Publisher
Wiley (John Wiley & Sons)
Publication Date
Oct 10, 2017
Identifiers
DOI: 10.1002/mrd.22922
PMID: 29024220
Source
Medline
Keywords
License
Unknown

Abstract

In vitro embryo production is an established method for both humans and animals, but is fraught with inferior development and health issues in offspring born after in vitro fertilization procedures. Analysis of epigenetic changes caused by exposure to in vitro conditions should shed light on potential sources of these phenotypes. Using immunocytochemistry, we investigated the localization and relative abundance of components associated with the SWI/SNF (Switch/Sucrose non-fermentable) chromatin-remodeling complex-including BAF155, BAF170, BAF180, BAF53A, BAF57, BAF60A, BAF45D, ARID1A, ARID1B, ARID2, SNF5, and BRD7-in oocytes and in in vitro-produced and in vivo-derived porcine embryos. Differences in the localization of BAF155, BAF170, BAF60A, and ARID1B among these sources indicate that improper timing of chromatin remodeling and cellular differentiation might occur in early preimplantation embryos produced and cultured in vitro.

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