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了解牛胚胎延长:对热囊细胞囊泡的转录基因研究

Séverine A Degrelle^1,2, Fulin Liu³, Denis Laloe⁴

¹Université Paris-Saclay, Université Versailles Saint-Quentin en Yvelines, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Biologie de la Reproduction, Environnement, Epigénétique et Développment, Jouy en Josas, France.

Frontiers in physiology

|February 13, 2024

概括

牛中缺少胚胎盘的热囊细胞 (TVs) 在延长过程中显示出与完好无损的胚胎外组织 (EETs) 相比不同的分子签名. 这些差异凸显了正确牛胚胎发育所需的关键协调.

科学领域:

生殖生物学生殖生物学
发育生物学是发展生物学.
分子遗传学分子遗传学

背景情况:

胚胎发育涉及胚胎和胚外组织 (EET) 的生长和分化,用于子宫植入.
胚胎延长将卵状形状转化为管状,然后是丝状的形状,由基因表达调节.
发育不规则可以改变牛胚胎延长期间的基因表达.

研究的目的:

为了研究在牛的热囊细胞囊泡 (TVs) 中延长的分子基础,这是缺少胚胎盘的ETT片段.
为了比较基因表达特征的电视与完整的胚胎外组织 (EETs) 在卵性到丝状阶段.
了解分子特征在TV延长和分化中的作用.

主要方法:

收集的牛概念体 (D12-D18) 和带有/没有胚胎盘 (ED) 的分离片段,用于体内延长的评估.
在实验室中将球状囊生长为D8,并应用了类似的治疗方法.
分析基因表达差异,使用牛类数组 (10K) 和qPCR数组 (224个基因,24个途径).

主要成果:

在体内,电视显示了可变的延长率,有时类似于早期的ETE.
电视的分子特征通常遵循完整的EET发展轨迹 (D12-D18).
在每个阶段内,在TV和完整的ETE之间观察到不同的表达动态,与其他上皮模型有一些相似之处.

结论:

电视和EET延长的差异源于电视长度的缩短,信号容量和子宫信号的改变.
概念体和子宫之间的修改交叉声会影响延长.
适当的延长需要子宫,胚胎和胚胎外组织之间的密切协调,在发育线索中可能存在异步.

关键词:

牛肉类的牛肉类的牛肉类.延伸延伸延伸延伸延伸胚胎胚胎是一个胚胎.翻译学翻译学翻译学翻译学热囊细胞囊泡中的热囊细胞囊泡

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