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Effects of Regulating Hippo and Wnt on the Development and Fate Differentiation of Bovine Embryo

文献类型： 外文期刊

作者： Zhang, Peipei 1 ; Zhang, Hang 1 ; Li, Chongyang 1 ; Yang, Baigao 1 ; Feng, Xiaoyi 1 ; Cao, Jianhua 1 ; Du, Weihua 1 ; Shahzad, Muhammad 1 ; Khan, Adnan 3 ; Sun, Shao-Chen 2 ; Zhao, Xueming 1 ;

作者机构： 1.Chinese Acad Agr Sci CAAS, Inst Anim Sci IAS, 2 Yuanmingyuan Western Rd, Beijing 100193, Peoples R China

2.Nanjing Agr Univ, Coll Anim Sci & Technol, Nanjing 210095, Peoples R China

3.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Genome Anal Lab, Minist Agr, Shenzhen 518120, Peoples R China

关键词： LPA; DKK1; embryo; single-cell RNA sequencing

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 1661-6596

年卷期： 2024 年 25 卷 7 期

页码：

收录情况： SCI

摘要： The improvement of in vitro embryo development is a gateway to enhance the output of assisted reproductive technologies. The Wnt and Hippo signaling pathways are crucial for the early development of bovine embryos. This study investigated the development of bovine embryos under the influence of a Hippo signaling agonist (LPA) and a Wnt signaling inhibitor (DKK1). In this current study, embryos produced in vitro were cultured in media supplemented with LPA and DKK1. We comprehensively analyzed the impact of LPA and DKK1 on various developmental parameters of the bovine embryo, such as blastocyst formation, differential cell counts, YAP fluorescence intensity and apoptosis rate. Furthermore, single-cell RNA sequencing (scRNA-seq) was employed to elucidate the in vitro embryonic development. Our results revealed that LPA and DKK1 improved the blastocyst developmental potential, total cells, trophectoderm (TE) cells and YAP fluorescence intensity and decreased the apoptosis rate of bovine embryos. A total of 1203 genes exhibited differential expression between the control and LPA/DKK1-treated (LD) groups, with 577 genes upregulated and 626 genes downregulated. KEGG pathway analysis revealed significant enrichment of differentially expressed genes (DEGs) associated with TGF-beta signaling, Wnt signaling, apoptosis, Hippo signaling and other critical developmental pathways. Our study shows the role of LPA and DKK1 in embryonic differentiation and embryo establishment of pregnancy. These findings should be helpful for further unraveling the precise contributions of the Hippo and Wnt pathways in bovine trophoblast formation, thus advancing our comprehension of early bovine embryo development.

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