Bharati Jaya, Kumar Satish, Devi Salam Jayachitra, Gupta Vivek Kumar
Animal Physiology, ICAR-National Research Centre on Pig, Guwahati, 781131, Assam, India.
Animal Genetics and Breeding, ICAR-National Research Centre on Pig, Guwahati, 781131, Assam, India.
Trop Anim Health Prod. 2025 Apr 30;57(4):201. doi: 10.1007/s11250-025-04432-5.
Researchers have widely undertaken targeted genome editing in pigs to optimize pig productivity, disease tolerance and for biomedical research. The present study aimed to investigate research advancements, focus areas, gaps, and challenges in genome editing in pigs using bibliometric analysis. The bibliographic information of publications on genome editing in pigs from 2010 to 2023 was retrieved from the Scopus database. Bibliometric parameters, such as coauthorship, keyword co-occurrence, citation, bibliographic coupling, and cocitation, was analyzed using VOSviewer. Literature mining was conducted to evaluate the emerging areas and challenges in the development of genome-edited pigs. We found 725 documents on genome editing in pigs, 407 of which were research articles authored by 2826 researchers from 1359 research organizations across 40 countries. The two countries, China and the United States, account for more than 50% of the research publications on genome editing in pigs. Investigations on the optimization of the procedure, delivery methods, editing efficiency, and reducing off-target effects dominated the early phase of research, which has shifted to its application for generating knockout (KO) or knockin (KI) pigs in recent years. Areas such as xenotransplantation, disease resistance, higher muscling, and disease models have dominated the research horizon for genome editing in pigs. Emerging areas in gene editing include base editing, CRISPR-based screens, diagnostics, and therapeutics. However, investigations on reducing heat stress and environmental footprint through genetic alterations need more attention from scientists. Challenges such as off-target effects and regulatory, ethical and societal issues related to channelizing gene-edited pigs from lab to land and then from farm to fork continue to restrain this field.
研究人员已广泛开展猪的靶向基因组编辑,以优化猪的生产性能、抗病能力,并用于生物医学研究。本研究旨在通过文献计量分析,调查猪基因组编辑的研究进展、重点领域、差距和挑战。从Scopus数据库中检索了2010年至2023年关于猪基因组编辑的出版物的书目信息。使用VOSviewer分析了合著、关键词共现、引文、文献耦合和共被引等文献计量参数。进行文献挖掘以评估基因编辑猪发展中的新兴领域和挑战。我们发现了725篇关于猪基因组编辑的文献,其中407篇是研究论文,由来自40个国家1359个研究机构的2826名研究人员撰写。中国和美国这两个国家占猪基因组编辑研究出版物的50%以上。对程序优化、递送方法、编辑效率和减少脱靶效应的研究在早期阶段占主导地位,近年来已转向其在生成基因敲除(KO)或基因敲入(KI)猪方面的应用。异种移植、抗病性、更高的肌肉量和疾病模型等领域在猪基因组编辑的研究领域中占主导地位。基因编辑的新兴领域包括碱基编辑、基于CRISPR的筛选、诊断和治疗。然而,通过基因改变减少热应激和环境足迹的研究需要科学家更多关注。脱靶效应以及与将基因编辑猪从实验室引入实际应用,再从农场到餐桌相关的监管、伦理和社会问题等挑战,继续限制着这一领域的发展。
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