한국동물생명공학회지 (Journal of Animal Reproduction and Biotechnology)

  • 제37권4호
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  • Pages.255-265
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  • 2022
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  • 2671-4639(pISSN)
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  • 2671-4663(eISSN)
한국동물생명공학회 (The Korean Society of Animal Reproduction and Biotechnology)
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Analysis of cellular communication network factor (CCN) 4 and CCN6 expression in the endometrium during the estrous cycle and at the maternal-conceptus interface in pigs

  • Inkyu, Yoo (Department of Biological Science and Technology, Yonsei University) ;
  • Soohyung, Lee (Department of Biological Science and Technology, Yonsei University) ;
  • Yugyeong, Cheon (Department of Biological Science and Technology, Yonsei University) ;
  • Hakhyun, Ka (Department of Biological Science and Technology, Yonsei University)
  • 투고 : 2022.11.22
  • 심사 : 2022.12.05
  • 발행 : 2022.12.31
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초록

The cellular communication network factor (CCN) family proteins regulate many biological events such as angiogenesis, tumor growth, placentation, implantation, and embryogenesis. The expression and function of CCN1, CCN2, and CCN3 at the maternal-conceptus interface are established in humans and rodents, but little is known about the role of CCN4 to CCN6 in the reproductive organs in any other species. Several studies in transcriptome analysis in pigs have shown that the expression of CCN4 and CCN6 increases in the endometrium during early pregnancy. However, their expression, regulation, and function in the endometrium throughout the estrous cycle and pregnancy have not been fully understood in pigs. Thus, we determined the expression, localization, and regulation of CCN4 and CCN6 during the estrous cycle and at the maternal-conceptus interface in pigs. We found that the levels of CCN4, but not CCN6, changed during the estrous cycle. The levels of CCN4 were greater during mid- to late pregnancy than in the early stage, and the levels of CCN6 were greatest on Day 15 of pregnancy. CCN4 and CCN6 were detected in conceptus tissues during early pregnancy and in chorioallantoic tissues during the later stage of pregnancy. CCN4 mRNA was mainly localized to epithelial cells, CCN6 mRNAs to epithelial and stromal cells in the endometrium. In endometrial explant cultures, CCN4 expression was increased by progesterone, and CCN6 expression by interferon-𝛾. These results suggest that CCN4 and CCN6 may play roles in the establishment and maintenance of pregnancy by regulating the endometrial epithelial cell functions in pigs.

키워드

과제정보

The authors thank all the members of the Animal Biotechnology Laboratory, Yonsei University, for their support and assistance throughout this project.

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