Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA.
USDA-ARS, Plant Genetics Research Unit, Columbia, MO 65211, USA.
Cells. 2021 Oct 15;10(10):2770. doi: 10.3390/cells10102770.
Genetically modified pigs have become valuable tools for generating advances in animal agriculture and human medicine. Importantly, in vitro production and manipulation of embryos is an essential step in the process of creating porcine models. As the in vitro environment is still suboptimal, it is imperative to examine the porcine embryo culture system from several angles to identify methods for improvement. Understanding metabolic characteristics of porcine embryos and considering comparisons with other mammalian species is useful for optimizing culture media formulations. Furthermore, stressors arising from the environment and maternal or paternal factors must be taken into consideration to produce healthy embryos in vitro. In this review, we progress stepwise through in vitro oocyte maturation, fertilization, and embryo culture in pigs to assess the status of current culture systems and address points where improvements can be made.
转基因猪已成为推动动物农业和人类医学进步的重要工具。重要的是,胚胎的体外生产和操作是创建猪模型的过程中的一个重要步骤。由于体外环境仍然不理想,因此必须从多个角度检查猪胚胎培养系统,以确定改进方法。了解猪胚胎的代谢特性并考虑与其他哺乳动物物种的比较对于优化培养基配方是有用的。此外,必须考虑来自环境和母体或父体因素的应激源,以在体外生产健康的胚胎。在这篇综述中,我们逐步介绍猪的体外卵母细胞成熟、受精和胚胎培养,以评估当前培养系统的状况,并解决可以改进的地方。