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Poster Presentation : Gene Expression / Function

Functional Role of SMAD-4 Signaling in Early Embryogenesis

첫 페이지 보기
  • 발행기관
    한국동물생명공학회(구 한국동물번식학회) 바로가기
  • 간행물
    발생공학 국제심포지엄 및 학술대회 바로가기
  • 통권
    2018년 한국동물번식학회, 한국수정란이식학회 공동학술대회 (2018.06)바로가기
  • 페이지
    pp.50-50
  • 저자
    Kyung-Bon Lee, Eun-Woo Lee, Tae Hoon Kim
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A347444

원문정보

초록

영어
Maternal (oocyte-derived) follistatin has a positive functional role in control of time to first cleavage of bovine embryos, subsequent development to the blastocyst stage and in blastocyst cell allocation to the trophectoderm lineage. Follistatin binds to and inhibits activity of members of the transforming growth factor superfamily, whose signals are mediated intracellularly primarily through activation of receptor associated SMADs (rSMADs) including SMAD-2/3 (activin, TGF-b) and SMAD-1/5/8 (BMPs). We hypothesized that the positive actions of follistatin on early embryogenesis may be mediated via inhibition of ligand induced rSMAD signaling. To address this hypothesis, we determined the temporal expression and effects on bovine early embryogenesis of siRNA mediated knockdown of SMAD-4. SMAD-4 is a common component of above signaling pathways which complexes with respective rSMADs. SMAD-4 mRNA in early embryos is maternally derived and its abundance is temporally regulated during early embryogenesis. SMAD-4 siRNA injection at the zygote stage also significantly reduced proportion of embryos cleaving early and proportion of embryos developing to the 8~16 cell and blastocyst stages. Furthermore, SMAD-4 siRNA injection at the zygote stage had no effect on abundance of mRNA for the trophectoderm cell marker CDX2 and inner cell mass cell marker Nanog in bovine blastocysts. Results suggest a functional role for maternal (oocyte-derived) SMAD-4 in bovine early embryonic development. However, the phenotype of SMAD-4 depleted embryos is distinct from that observed in response to follistatin ablation or replacement.

키워드

Transforming growth factor superfamily Embryogenesis SMAD-4 siRNA

저자

  • Kyung-Bon Lee [ Department of Biology Education, Chonnam National University ]
  • Eun-Woo Lee [ Department of Life Science and Biotechnology, Dongeui University ]
  • Tae Hoon Kim [ Department of Food Science and Biotechnology, Daegu University ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국동물생명공학회(구 한국동물번식학회) [The Korean Society of Animal Reproduction and Biotechnology]
  • 설립연도
    1976
  • 분야
    농수해양>축산학
  • 소개
    동물번식생리학, 동물생명공학, 수의학, 인공수정 및 수정란이식을 이용한 동물개량에 관한 이론과 기술의 발전을 통해 학계, 연구계, 산업계 및 양축가 상호간의 협력을 도모함으로써 동물과학발전 및 사회일반의 이익에 기여 한다는 목적을 위해 노력해 나가겠습니다.

간행물

  • 간행물명
    발생공학 국제심포지엄 및 학술대회 [International Symposium on Developmental Biotechnology]
  • 간기
    연간
  • 수록기간
    2004~2018
  • 십진분류
    KDC 527 DDC 636

이 권호 내 다른 논문 / 발생공학 국제심포지엄 및 학술대회 2018년 한국동물번식학회, 한국수정란이식학회 공동학술대회

    피인용수 : 0(자료제공 : 네이버학술정보)

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