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Involvement of METTL3-mediated m6A methylation in the early development of porcine cloned embryos.
Zhang, Mengya; Wu, Xiaoqing; Guo, Tenglong; Xia, Yi; Wang, Zhichao; Shi, Zhenhu; Hu, Kunlong; Zhu, Xinyue; Zhu, Ruiqing; Yue, Yingying; Zhang, Yunhai; Cao, Zubing.
Affiliation
  • Zhang M; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
  • Wu X; Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Fuyang Normal University, Fuyang, 236041, China.
  • Guo T; Anhui Provincial Animal and Poultry Genetic Resources Protection Center, Hefei, 230061, China.
  • Xia Y; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
  • Wang Z; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
  • Shi Z; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
  • Hu K; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
  • Zhu X; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
  • Zhu R; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
  • Yue Y; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
  • Zhang Y; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China. Electronic address: yunhaizhang@ahau.edu.cn.
  • Cao Z; Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China. Electronic address: zubingcao@ahau.edu.cn.
Theriogenology ; 226: 378-386, 2024 Sep 15.
Article in En | MEDLINE | ID: mdl-38972169
ABSTRACT
METTL3-mediated N6-methyladenosine (m6A) modification is critical for gametogenesis and early embryonic development. However, the function of METTL3-mediated m6A modification in the early development of somatic nuclear transfer embryos (SCNT) remains unclear. Here, we found that METTL3 mRNA and protein levels exhibit dynamic changes during the early development of porcine SCNT embryos. The levels of METTL3 mRNA and protein in SCNT embryos at specific developmental stages differ from those in parthenogenetic activation (PA) counterparts. SiRNA injection effectively reduced the levels of METTL3 mRNA and protein in 4-cell embryos and blastocysts. METTL3 knockdown significantly reduced the cleavage and blastocyst rates of SCNT embryos. METTL3 knockdown significantly reduced the number of total cells and trophectoderm (TE) cells in the resulting blastocysts and perturbed cell lineage allocation. In addition, METTL3 knockdown reduced the levels of m6A modification in 4-cell embryos and blastocysts. Importantly, METTL3 knockdown decreased the expression levels of CDX2, GATA3, NANOG and YAP, and increased the expression levels of SOX2 and OCT4. Taken together, these results demonstrate that METTL3-mediated m6A modification regulates early development and lineage differentiation of porcine SCNT embryos.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Gene Expression Regulation, Developmental / Cloning, Organism / Embryonic Development / Methyltransferases Limits: Animals Language: En Journal: Theriogenology Year: 2024 Document type: Article Affiliation country: China Country of publication: United States
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Gene Expression Regulation, Developmental / Cloning, Organism / Embryonic Development / Methyltransferases Limits: Animals Language: En Journal: Theriogenology Year: 2024 Document type: Article Affiliation country: China Country of publication: United States