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基因组编辑:在畜牧业中对疾病抗性、生产效率和生物医学应用的深入了解。

Genome editing: An insight into disease resistance, production efficiency, and biomedical applications in livestock.

机构信息

College of Veterinary Medicine/Key Laboratory of Animal Genetic Engineering, Yangzhou University, Yangzhou, 225009, Jiangsu, China.

Jiangsu Co-Innovation Center of Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, Jiangsu, China.

出版信息

Funct Integr Genomics. 2024 May 6;24(3):81. doi: 10.1007/s10142-024-01364-5.

Abstract

One of the primary concerns for the survival of the human species is the growing demand for food brought on by an increasing global population. New developments in genome-editing technology present promising opportunities for the growth of wholesome and prolific farm animals. Genome editing in large animals is used for a variety of purposes, including biotechnology to improve food production, animal health, and pest management, as well as the development of animal models for fundamental research and biomedicine. Genome editing entails modifying genetic material by removing, adding, or manipulating particular DNA sequences from a particular locus in a way that does not happen naturally. The three primary genome editors are CRISPR/Cas 9, TALENs, and ZFNs. Each of these enzymes is capable of precisely severing nuclear DNA at a predetermined location. One of the most effective inventions is base editing, which enables single base conversions without the requirement for a DNA double-strand break (DSB). As reliable methods for precise genome editing in studies involving animals, cytosine and adenine base editing are now well-established. Effective zygote editing with both cytosine and adenine base editors (ABE) has resulted in the production of animal models. Both base editors produced comparable outcomes for the precise editing of point mutations in somatic cells, advancing the field of gene therapy. This review focused on the principles, methods, recent developments, outstanding applications, the advantages and disadvantages of ZFNs, TALENs, and CRISPR/Cas9 base editors, and prime editing in diverse lab and farm animals. Additionally, we address the methodologies that can be used for gene regulation, base editing, and epigenetic alterations, as well as the significance of genome editing in animal models to better reflect real disease. We also look at methods designed to increase the effectiveness and precision of gene editing tools. Genome editing in large animals is used for a variety of purposes, including biotechnology to improve food production, animal health, and pest management, as well as the development of animal models for fundamental research and biomedicine. This review is an overview of the existing knowledge of the principles, methods, recent developments, outstanding applications, the advantages and disadvantages of zinc finger nucleases (ZFNs), transcription-activator-like endonucleases (TALENs), and clustered regularly interspaced short palindromic repeats associated protein 9 (CRISPR/Cas 9), base editors and prime editing in diverse lab and farm animals, which will offer better and healthier products for the entire human race.

摘要

人类物种生存的主要关注点之一是全球人口增长带来的粮食需求不断增加。基因组编辑技术的新发展为健康和多产的农场动物的生长带来了有希望的机会。大型动物的基因组编辑用于多种目的,包括生物技术以提高粮食生产、动物健康和害虫管理,以及开发用于基础研究和生物医学的动物模型。基因组编辑通过从特定基因座的特定 DNA 序列中去除、添加或操纵特定 DNA 序列来修改遗传物质,而这些序列不会自然发生。三种主要的基因组编辑工具是 CRISPR/Cas9、TALENs 和 ZFNs。这些酶中的每一种都能够在预定位置精确地切断核 DNA。最有效的发明之一是碱基编辑,它能够在不要求双链 DNA 断裂 (DSB) 的情况下实现单个碱基的转换。胞嘧啶和腺嘌呤碱基编辑作为在涉及动物的研究中进行精确基因组编辑的可靠方法,现在已经得到很好的确立。有效的带有胞嘧啶和腺嘌呤碱基编辑器 (ABE) 的合子编辑导致了动物模型的产生。两种碱基编辑器都能在体细胞中精确编辑点突变,从而推进了基因治疗领域的发展。本综述重点介绍了 ZFNs、TALENs 和 CRISPR/Cas9 碱基编辑器以及 prime 编辑在不同实验室和农场动物中的原理、方法、最新进展、突出应用、优缺点,以及它们在更好地反映真实疾病的动物模型中的意义。我们还讨论了用于基因调控、碱基编辑和表观遗传改变的方法,以及基因组编辑在大型动物中的应用,包括生物技术以提高粮食生产、动物健康和害虫管理,以及开发用于基础研究和生物医学的动物模型。本文综述了锌指核酸酶(ZFNs)、转录激活因子样效应物核酸酶(TALENs)和规律成簇间隔短回文重复相关蛋白 9(CRISPR/Cas9)、碱基编辑器和 prime 编辑在不同实验室和农场动物中的原理、方法、最新进展、突出应用、优缺点的现有知识,这将为全人类提供更好、更健康的产品。

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