Journal Article

TALE nickase-mediated SP110 knockin endows cattle with increased resistance to tuberculosis

Wang, Yongsheng, Wu, Haibo, Zhang, Yan, Liu, Jun, Yang, Mingqi, Lv, Jiaxing, Zhang, Yong

2015

Overview

Transcription activator-like effector nuclease (TALEN)-mediated genome modification has been applied successfully to create transgenic animals in various species, such as mouse, pig, and even monkey. However, transgenic cattle with gene knockin have yet to be created using TALENs. Here, we report site-specific knockin of the transcription activator-like effector (TALE) nickase-mediated SP110 nuclear body protein gene ( SP110 ) via homologous recombination to produce tuberculosis-resistant cattle. In vitro and in vivo challenge and transmission experiments proved that the transgenic cattle are able to control the growth and multiplication of Mycobacterium bovis , turn on the apoptotic pathway of cell death instead of necrosis after infection, and efficiently resist the low dose of M . bovis transmitted from tuberculous cattle in nature. In this study, we developed TALE nickases to modify the genome of Holstein–Friesian cattle, thereby engineering a heritable genome modification that facilitates resistance to tuberculosis. Significance Bovine tuberculosis is a chronic infectious disease that affects a broad range of mammalian hosts. It is a serious threat to agriculture in many less-developed countries. In this study, we introduced a mutation to the FokI of the right hand of wild-type transcription activator-like effector nuclease and established a transcription activator-like effector nickase system that creates single-strand breaks in the genome. Then we used this system to add the mouse gene SP110 to a specific location in the bovine genome and created transgenic cattle with increased resistance to tuberculosis. Our results contribute to the control and prevention of bovine tuberculosis and provide a previously unidentified insight into breeding animals for disease resistance.

• Publisher: National Academy of Sciences
• Subject: Agricultural Sciences / animal breeding / Animals / Apoptosis / Bacteria / Biological Sciences / bovine tuberculosis / Cattle / Deoxyribonuclease I - metabolism / disease resistance / DNA Breaks, Single-Stranded / Endonucleases - metabolism / Enzyme-Linked Immunospot Assay / Experiments / Female / Gene Knock-In Techniques / Gene Transfer Techniques / genes / Genome / Genomes / HEK293 Cells / hosts / Humans / Macrophages - microbiology / Mice / Minor Histocompatibility Antigens / mutation / Mycobacterium bovis / Nuclear Proteins - genetics / Nuclear Proteins - physiology / PNAS Plus / transcription (genetics) / Transcription factors / Transcription, Genetic / Transgenic animals / Tuberculosis / Tuberculosis, Bovine - genetics / Tuberculosis, Bovine - microbiology / Tuberculosis, Bovine - prevention & control