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Nevue AA, Sairavi A, Huang SJ, Nakai H, Mello CV. Genomic loss of GPR108 disrupts AAV transduction in birds. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.16.589954. [PMID: 38798475 PMCID: PMC11118497 DOI: 10.1101/2024.05.16.589954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The G protein-coupled receptor 108 (GPR108) gene encodes a protein factor identified as critical for adeno-associated virus (AAV) entry into mammalian cells, but whether it is universally involved in AAV transduction is unknown. Remarkably, we have discovered that GPR108 is absent in the genomes of birds and in most other sauropsids, providing a likely explanation for the overall lower AAV transduction efficacy of common AAV serotypes in birds compared to mammals. Importantly, transgenic expression of human GPR108 and manipulation of related glycan binding sites in the viral capsid significantly boost AAV transduction in zebra finch cells. These findings contribute to a more in depth understanding of the mechanisms and evolution of AAV transduction, with potential implications for the design of efficient tools for gene manipulation in experimental animal models, and a range of gene therapy applications in humans.
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Affiliation(s)
- Alexander A Nevue
- Department of Behavioral Neuroscience, Oregon Health & Science University, Oregon, USA
| | - Anusha Sairavi
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Oregon, USA
| | - Samuel J Huang
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Oregon, USA
| | - Hiroyuki Nakai
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Oregon, USA
- Department of Molecular Microbiology and Immunology, Oregon Health & Science University, Oregon, USA
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
| | - Claudio V Mello
- Department of Behavioral Neuroscience, Oregon Health & Science University, Oregon, USA
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2
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Kim DH, Lee J, Ko JK, Lee K. Melanophilin regulates dendritogenesis in melanocytes for feather pigmentation. Commun Biol 2024; 7:592. [PMID: 38760591 PMCID: PMC11101434 DOI: 10.1038/s42003-024-06284-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 05/03/2024] [Indexed: 05/19/2024] Open
Abstract
Limited studies using animal models with a few natural mutations in melanophilin (Mlph) provided partial functions of Mlph in melanosome trafficking. To investigate cellular functions of Mlph, especially ZnF motif of Mlph, we analyzed all three Mlph knockout (KO) quail lines, one and two base pair (bp) deletions as models for total KO, and three bp deletion causing deletion of one Cysteine (C84del) in the ZnF motif. All quail lines had diluted feather pigmentation with impaired dendritogenesis and melanosome transport in melanocytes. In vitro studies revealed capability of binding of the ZnF motif to PIP3, and impairment of PI3P binding and mislocalization of MLPH proteins with ZnF motif mutations. The shortened melanocyte dendrites by the C84del mutation were rescued by introducing WT Mlph in vitro. These results revealed the diluted feather pigmentation by Mlph mutations resulted from congregation of melanosomes in the cell bodies with impairment of the dendritogenesis and the transport of melanosomes to the cell periphery.
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Affiliation(s)
- Dong-Hwan Kim
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | - Joonbum Lee
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | - Jae-Kyun Ko
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA
- Pathology Advanced Translational Research Unit (PATRU), Department of Pathology & Laboratory Medicine, Emory University, Atlanta, GA, USA
| | - Kichoon Lee
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA.
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Zahid H, Afzal N, Arif MM, Zahid M, Nawab S, Qasim MM, Alvi FN, Nazir S, Perveen I, Abbas N, Saleem Y, Mazhar S, Nawaz S, Faridi TA, Awan HMA, Syed Q, Abidi SHI. Microorganism-mediated biodegradation for effective management and/or removal of micro-plastics from the environment: a comprehensive review. Arch Microbiol 2024; 206:198. [PMID: 38558101 DOI: 10.1007/s00203-024-03904-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 04/04/2024]
Abstract
Micro- plastics (MPs) pose significant global threats, requiring an environment-friendly mode of decomposition. Microbial-mediated biodegradation and biodeterioration of micro-plastics (MPs) have been widely known for their cost-effectiveness, and environment-friendly techniques for removing MPs. MPs resistance to various biocidal microbes has also been reported by various studies. The biocidal resistance degree of biodegradability and/or microbiological susceptibility of MPs can be determined by defacement, structural deformation, erosion, degree of plasticizer degradation, metabolization, and/or solubilization of MPs. The degradation of microplastics involves microbial organisms like bacteria, mold, yeast, algae, and associated enzymes. Analytical and microbiological techniques monitor microplastic biodegradation, but no microbial organism can eliminate microplastics. MPs can pose environmental risks to aquatic and human life. Micro-plastic biodegradation involves fragmentation, assimilation, and mineralization, influenced by abiotic and biotic factors. Environmental factors and pre-treatment agents can naturally degrade large polymers or induce bio-fragmentation, which may impact their efficiency. A clear understanding of MPs pollution and the microbial degradation process is crucial for mitigating its effects. The study aimed to identify deteriogenic microorganism species that contribute to the biodegradation of micro-plastics (MPs). This knowledge is crucial for designing novel biodeterioration and biodegradation formulations, both lab-scale and industrial, that exhibit MPs-cidal actions, potentially predicting MPs-free aquatic and atmospheric environments. The study emphasizes the urgent need for global cooperation, research advancements, and public involvement to reduce micro-plastic contamination through policy proposals and improved waste management practices.
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Affiliation(s)
- Hassan Zahid
- Department of Public Health, University of Health Sciences, Lahore, Pakistan
| | - Nimra Afzal
- Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Muhammad Maaz Arif
- Department of Medical Education, University of Health Sciences, Lahore, Pakistan
| | - Mahnoor Zahid
- Department of Biochemistry and Molecular Biology, University of Gujrat, Gujrat, Pakistan
| | - Samia Nawab
- Government Graduate College (W), Township, Lahore, Pakistan
| | | | | | | | - Ishrat Perveen
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan.
| | - Naaz Abbas
- Minhaj University Lahore, Lahore, Pakistan
| | - Yasar Saleem
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan
| | - Sania Mazhar
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan
| | - Shaista Nawaz
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan
| | | | | | - Quratulain Syed
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan
| | - Syed Hussain Imam Abidi
- Food and Biotechnology Research Centre, Pakistan Council of Scientific and Industrial Research Centre, Lahore, Pakistan
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Smiley KO, Munley KM, Aghi K, Lipshutz SE, Patton TM, Pradhan DS, Solomon-Lane TK, Sun SED. Sex diversity in the 21st century: Concepts, frameworks, and approaches for the future of neuroendocrinology. Horm Behav 2024; 157:105445. [PMID: 37979209 PMCID: PMC10842816 DOI: 10.1016/j.yhbeh.2023.105445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/11/2023] [Accepted: 10/18/2023] [Indexed: 11/20/2023]
Abstract
Sex is ubiquitous and variable throughout the animal kingdom. Historically, scientists have used reductionist methodologies that rely on a priori sex categorizations, in which two discrete sexes are inextricably linked with gamete type. However, this binarized operationalization does not adequately reflect the diversity of sex observed in nature. This is due, in part, to the fact that sex exists across many levels of biological analysis, including genetic, molecular, cellular, morphological, behavioral, and population levels. Furthermore, the biological mechanisms governing sex are embedded in complex networks that dynamically interact with other systems. To produce the most accurate and scientifically rigorous work examining sex in neuroendocrinology and to capture the full range of sex variability and diversity present in animal systems, we must critically assess the frameworks, experimental designs, and analytical methods used in our research. In this perspective piece, we first propose a new conceptual framework to guide the integrative study of sex. Then, we provide practical guidance on research approaches for studying sex-associated variables, including factors to consider in study design, selection of model organisms, experimental methodologies, and statistical analyses. We invite fellow scientists to conscientiously apply these modernized approaches to advance our biological understanding of sex and to encourage academically and socially responsible outcomes of our work. By expanding our conceptual frameworks and methodological approaches to the study of sex, we will gain insight into the unique ways that sex exists across levels of biological organization to produce the vast array of variability and diversity observed in nature.
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Affiliation(s)
- Kristina O Smiley
- Department of Psychological and Brain Sciences, University of Massachusetts Amherst, 639 North Pleasant Street, Morrill IVN Neuroscience, Amherst, MA 01003, USA.
| | - Kathleen M Munley
- Department of Psychology, University of Houston, 3695 Cullen Boulevard, Houston, TX 77204, USA.
| | - Krisha Aghi
- Department of Integrative Biology and Physiology, University of California Los Angeles, 405 Hilgard Ave, Los Angeles, CA 90095, USA.
| | - Sara E Lipshutz
- Department of Biology, Duke University, 130 Science Drive, Durham, NC 27708, USA.
| | - Tessa M Patton
- Bioinformatics Program, Loyola University Chicago, 1032 West Sheridan Road, LSB 317, Chicago, IL 60660, USA.
| | - Devaleena S Pradhan
- Department of Biological Sciences, Idaho State University, 921 South 8th Avenue, Mail Stop 8007, Pocatello, ID 83209, USA.
| | - Tessa K Solomon-Lane
- Scripps, Pitzer, Claremont McKenna Colleges, 925 North Mills Avenue, Claremont, CA 91711, USA.
| | - Simón E D Sun
- Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA.
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Lee J, Kim DH, Lee K. Research Note: Injection of adenoviral CRISPR/Cas9 system targeting melanophilin gene into different sites of embryos induced regional feather color changes in posthatch quail. Poult Sci 2023; 102:103087. [PMID: 37741117 PMCID: PMC10520524 DOI: 10.1016/j.psj.2023.103087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/25/2023] Open
Abstract
Poultry species is an important animal model in both avian research and the poultry industry. To advance our understanding of genetic factors and benefit both fields, a gene of interest can be genetically edited, and consequential phenotypic changes can be investigated. Injection of adenovirus containing the CRISPR/Cas9 system into avian blastoderm induced genome editing in blastodermal cells randomly, including primordial germ cells, which results in generation of whole-body knockout in the offspring of the virus-injected quail. However, to observe phenotypic and functional changes in whole-body, homozygous knockout of genes using this genome editing technology requires at least 2 generations of breeding of chimeric, and heterozygotes birds. In the current study, we developed a strategy to investigate the gene function in 1-generation by inducing regional genome editing around the injection sites with CRISPR/Cas9 adenovirus. The adenoviral CRISPR/Cas9 vector targeting the melanophilin (Mlph) gene, regulating feather pigmentation, was injected into 2 different regions of embryos, the cervical flexure of quail embryos at HH stage 13 to 15 and the tip of the upper limb bud of embryos at HH stage 22 to 24, to induce genome editing in those regions. Indel mutations in the target loci of the Mlph gene were detected by extracting genomic DNA from the embryonic tissues, and consequential phenotypes, feather color changes, were analyzed at 1 mo after hatch. Injection of the adenovirus into the cervical flexure and the tip of the upper limb bud of embryos resulted in 8 to 21% efficiency of indel mutation in the embryonic cells of the injected regions. In the posthatch quail, gray feathers were shown on their upper back and primary wing feathers, corresponding to the injection sites at embryos. Successful validation of this strategy for inducing genome editing in parts of tissues within 1-generation will accelerate studies on genetic functions with advantages of less time and cost, facilitating avian research and providing foundations for future application for the poultry industry.
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Affiliation(s)
- Joonbum Lee
- Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA
| | - Dong-Hwan Kim
- Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA
| | - Kichoon Lee
- Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA.
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Challagulla A, Jenkins KA, O'Neil TE, Morris KR, Wise TG, Tizard ML, Bean AGD, Schat KA, Doran TJ. Germline engineering of the chicken genome using CRISPR/Cas9 by in vivo transfection of PGCs. Anim Biotechnol 2023; 34:775-784. [PMID: 32707002 DOI: 10.1080/10495398.2020.1789869] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Development of simple and readily adoptable methods to mediate germline engineering of the chicken genome will have many applications in research, agriculture and industrial biotechnology. We report germline targeting of the endogenous chicken Interferon Alpha and Beta Receptor Subunit 1 (IFNAR1) gene by in vivo transgenic expression of the high-fidelity Cas9 (Cas9-HF1) and guide RNAs (gRNAs) in chickens. First, we developed a Tol2 transposon vector carrying Cas9-HF1, IFNAR1-gRNAs (IF-gRNAs) and green fluorescent protein (GFP) transgenes (pTgRCG) and validated in chicken fibroblast DF1 cells. Next, the pTgRCG plasmid was directly injected into the dorsal aorta of embryonic day (ED) 2.5 chicken embryos targeting the circulating primordial germ cells (PGCs). The resulting chimera roosters generated a fully transgenic generation 1 (G1) hen with constitutive expression of Cas9-HF1 and IF-gRNAs (G1_Tol2-Cas9/IF-gRNA). We detected a spectrum of indels at gRNA-targeted loci in the G1_Tol2-Cas9/IF-gRNA hen and the indels were stably inherited by the G2 progeny. Breeding of the G1_Tol2-Cas9/IF-gRNA hen resulted in up to 10% transgene-free heterozygote IFNAR1 mutants, following null-segregation of the Tol2 insert. The method described here will provide new opportunities for genome editing in chicken and other avian species that lack PGC culture.
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Affiliation(s)
- Arjun Challagulla
- Australian Centre for Disease Preparedness, CSIRO Health and Biosecurity, Geelong, Australia
| | - Kristie A Jenkins
- Australian Centre for Disease Preparedness, CSIRO Health and Biosecurity, Geelong, Australia
| | - Terri E O'Neil
- Australian Centre for Disease Preparedness, CSIRO Health and Biosecurity, Geelong, Australia
| | - Kirsten R Morris
- Australian Centre for Disease Preparedness, CSIRO Health and Biosecurity, Geelong, Australia
| | - Terry G Wise
- Australian Centre for Disease Preparedness, CSIRO Health and Biosecurity, Geelong, Australia
| | - Mark L Tizard
- Australian Centre for Disease Preparedness, CSIRO Health and Biosecurity, Geelong, Australia
| | - Andrew G D Bean
- Australian Centre for Disease Preparedness, CSIRO Health and Biosecurity, Geelong, Australia
| | - Karel A Schat
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Timothy J Doran
- Australian Centre for Disease Preparedness, CSIRO Health and Biosecurity, Geelong, Australia
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Popova J, Bets V, Kozhevnikova E. Perspectives in Genome-Editing Techniques for Livestock. Animals (Basel) 2023; 13:2580. [PMID: 37627370 PMCID: PMC10452040 DOI: 10.3390/ani13162580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/08/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Genome editing of farm animals has undeniable practical applications. It helps to improve production traits, enhances the economic value of livestock, and increases disease resistance. Gene-modified animals are also used for biomedical research and drug production and demonstrate the potential to be used as xenograft donors for humans. The recent discovery of site-specific nucleases that allow precision genome editing of a single-cell embryo (or embryonic stem cells) and the development of new embryological delivery manipulations have revolutionized the transgenesis field. These relatively new approaches have already proven to be efficient and reliable for genome engineering and have wide potential for use in agriculture. A number of advanced methodologies have been tested in laboratory models and might be considered for application in livestock animals. At the same time, these methods must meet the requirements of safety, efficiency and availability of their application for a wide range of farm animals. This review aims at covering a brief history of livestock animal genome engineering and outlines possible future directions to design optimal and cost-effective tools for transgenesis in farm species.
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Affiliation(s)
- Julia Popova
- Laboratory of Bioengineering, Novosibirsk State Agrarian University, 630039 Novosibirsk, Russia; (J.P.); (V.B.)
| | - Victoria Bets
- Laboratory of Bioengineering, Novosibirsk State Agrarian University, 630039 Novosibirsk, Russia; (J.P.); (V.B.)
- Center of Technological Excellence, Novosibirsk State Technical University, 630073 Novosibirsk, Russia
| | - Elena Kozhevnikova
- Laboratory of Bioengineering, Novosibirsk State Agrarian University, 630039 Novosibirsk, Russia; (J.P.); (V.B.)
- Laboratory of Experimental Models of Cognitive and Emotional Disorders, Scientific-Research Institute of Neurosciences and Medicine, 630117 Novosibirsk, Russia
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Kim YM, Woo SJ, Han JY. Strategies for the Generation of Gene Modified Avian Models: Advancement in Avian Germline Transmission, Genome Editing, and Applications. Genes (Basel) 2023; 14:genes14040899. [PMID: 37107658 PMCID: PMC10137648 DOI: 10.3390/genes14040899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/02/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Avian models are valuable for studies of development and reproduction and have important implications for food production. Rapid advances in genome-editing technologies have enabled the establishment of avian species as unique agricultural, industrial, disease-resistant, and pharmaceutical models. The direct introduction of genome-editing tools, such as the clustered regularly interspaced short palindromic repeats (CRISPR) system, into early embryos has been achieved in various animal taxa. However, in birds, the introduction of the CRISPR system into primordial germ cells (PGCs), a germline-competent stem cell, is considered a much more reliable approach for the development of genome-edited models. After genome editing, PGCs are transplanted into the embryo to establish germline chimera, which are crossed to produce genome-edited birds. In addition, various methods, including delivery by liposomal and viral vectors, have been employed for gene editing in vivo. Genome-edited birds have wide applications in bio-pharmaceutical production and as models for disease resistance and biological research. In conclusion, the application of the CRISPR system to avian PGCs is an efficient approach for the production of genome-edited birds and transgenic avian models.
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Affiliation(s)
| | - Seung-Je Woo
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jae-Yong Han
- Avinnogen Co., Ltd., Seoul 08826, Republic of Korea
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
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Zoabi S, Andreyanov M, Heinrich R, Ron S, Carmi I, Gutfreund Y, Berlin S. A custom-made AAV1 variant (AAV1-T593K) enables efficient transduction of Japanese quail neurons in vitro and in vivo. Commun Biol 2023; 6:337. [PMID: 36977781 PMCID: PMC10050006 DOI: 10.1038/s42003-023-04712-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
The widespread use of rodents in neuroscience has prompted the development of optimized viral variants for transduction of brain cells, in vivo. However, many of the viruses developed are less efficient in other model organisms, with birds being among the most resistant to transduction by current viral tools. Resultantly, the use of genetically-encoded tools and methods in avian species is markedly lower than in rodents; likely holding the field back. We sought to bridge this gap by developing custom viruses towards the transduction of brain cells of the Japanese quail. We first develop a protocol for culturing primary neurons and glia from quail embryos, followed by characterization of cultures via immunostaining, single cell mRNA sequencing, patch clamp electrophysiology and calcium imaging. We then leveraged the cultures for the rapid screening of various viruses, only to find that all yielded poor to no infection of cells in vitro. However, few infected neurons were obtained by AAV1 and AAV2. Scrutiny of the sequence of the AAV receptor found in quails led us to rationally design a custom-made AAV variant (AAV1-T593K; AAV1*) that exhibits improved transduction efficiencies in vitro and in vivo (14- and five-fold, respectively). Together, we present unique culturing method, transcriptomic profiles of quail's brain cells and a custom-tailored AAV1 for transduction of quail neurons in vitro and in vivo.
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Affiliation(s)
- Shaden Zoabi
- Department of Neuroscience, Ruth and Bruce Rappaport Faculty of Medicine, Technion- Israel Institute of Technology, Haifa, Israel
| | - Michael Andreyanov
- Department of Neuroscience, Ruth and Bruce Rappaport Faculty of Medicine, Technion- Israel Institute of Technology, Haifa, Israel
| | - Ronit Heinrich
- Department of Neuroscience, Ruth and Bruce Rappaport Faculty of Medicine, Technion- Israel Institute of Technology, Haifa, Israel
| | - Shaked Ron
- Department of Neuroscience, Ruth and Bruce Rappaport Faculty of Medicine, Technion- Israel Institute of Technology, Haifa, Israel
| | - Ido Carmi
- Department of Neuroscience, Ruth and Bruce Rappaport Faculty of Medicine, Technion- Israel Institute of Technology, Haifa, Israel
| | - Yoram Gutfreund
- Department of Neuroscience, Ruth and Bruce Rappaport Faculty of Medicine, Technion- Israel Institute of Technology, Haifa, Israel
| | - Shai Berlin
- Department of Neuroscience, Ruth and Bruce Rappaport Faculty of Medicine, Technion- Israel Institute of Technology, Haifa, Israel.
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Mizushima S, Sasanami T, Ono T, Kuroiwa A. Current Approaches to and the Application of Intracytoplasmic Sperm Injection (ICSI) for Avian Genome Editing. Genes (Basel) 2023; 14:genes14030757. [PMID: 36981028 PMCID: PMC10048369 DOI: 10.3390/genes14030757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/10/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Poultry are one of the most valuable resources for human society. They are also recognized as a powerful experimental animal for basic research on embryogenesis. Demands for the supply of low-allergen eggs and bioreactors have increased with the development of programmable genome editing technology. The CRISPR/Cas9 system has recently been used to produce transgenic animals and various animals in the agricultural industry and has also been successfully adopted for the modification of chicken and quail genomes. In this review, we describe the successful establishment of genome-edited lines combined with germline chimera production systems mediated by primordial germ cells and by viral infection in poultry. The avian intracytoplasmic sperm injection (ICSI) system that we previously established and recent advances in ICSI for genome editing are also summarized.
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Affiliation(s)
- Shusei Mizushima
- Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - Tomohiro Sasanami
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
| | - Tamao Ono
- Matsumoto Dental University, 1780 Gobara, Hiro-oka, Shiojiri 399-0781, Nagano, Japan
| | - Asato Kuroiwa
- Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo 060-0810, Japan
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Lee CW, KC M, Ngunjiri JM, Ghorbani A, Lee K. TLR3 and MDA5 Knockout DF-1 cells Enhance Replication of Avian Orthoavulavirus 1. Avian Dis 2023; 67:94-101. [PMID: 37140117 DOI: 10.1637/aviandiseases-d-22-00065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/22/2022] [Indexed: 03/08/2023]
Abstract
Despite the essential role of innate immunity in defining the outcome of viral infections, the roles played by different components of the avian innate immune system are poorly delineated. Here, we investigated the potential implication of avian toll-like receptor (TLR) 3 (TLR3) and melanoma differentiation-associated (MDA) gene 5 (MDA5) receptors of double-stranded RNA (dsRNA) in induction of the interferon pathway and avian orthoavulavirus 1 (AOAV-1) replication in chicken-origin DF-1 fibroblast cells. TLR3 and MDA5 knockout (KO) DF-1 cells were generated using our avian-specific CRISPR/Cas9 system and stimulated with a synthetic dsRNA ligand polyinosinic:polycytidylic acid [poly(I:C)] or infected with AOAV-1 (previously known as Newcastle disease virus). Poly(I:C) treatment in cell culture media resulted in significant upregulation of interferon (IFN)α, IFNβ, and Mx1 gene expression in wild type (WT) DF-1 cells but not in TLR3-MDA5 double KO cells. Interestingly, poly(I:C) treatment induced rapid cell degeneration in WT and MDA5 KO cells, but not in TLR3 knockout or TRL3-MDA5 double knockout (DKO) cells, directly linking poly(I:C)-induced cell degeneration to TLR3-mediated host response. The double knockout cells supported significantly higher replication of AOAV-1 virus than did the WT cells. However, no correlation between the level of virus replication and type I IFN response was observed. Our study suggests that innate immune response is host- and pathogen specific, and further investigation is needed to understand the relevance of dsRNA receptor-mediated immune responses in viral replication and pathogenesis in avian species.
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Affiliation(s)
- Chang-Won Lee
- Exotic and Emerging Avian Viral Diseases Research Unit, Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, Agricultural Research Service, U.S. Department of Agriculture, Athens, GA 30605
| | - Mahesh KC
- Center for Food Animal Health, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691
| | - John M. Ngunjiri
- Center for Food Animal Health, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691
| | - Amir Ghorbani
- Center for Food Animal Health, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691
| | - Kichoon Lee
- Department of Animal Sciences, College of Food, Agricultural, and Environmental Sciences, The Ohio State University, Columbus, OH 43210
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Ichikawa K, Horiuchi H. Fate Decisions of Chicken Primordial Germ Cells (PGCs): Development, Integrity, Sex Determination, and Self-Renewal Mechanisms. Genes (Basel) 2023; 14:genes14030612. [PMID: 36980885 PMCID: PMC10048776 DOI: 10.3390/genes14030612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/24/2023] [Accepted: 02/27/2023] [Indexed: 03/05/2023] Open
Abstract
Primordial germ cells (PGCs) are precursor cells of sperm and eggs. The fate decisions of chicken PGCs in terms of their development, integrity, and sex determination have unique features, thereby providing insights into evolutionary developmental biology. Additionally, fate decisions in the context of a self-renewal mechanism have been applied to establish culture protocols for chicken PGCs, enabling the production of genome-edited chickens and the conservation of genetic resources. Thus, studies on the fate decisions of chicken PGCs have significantly contributed to both academic and industrial development. Furthermore, studies on fate decisions have rapidly advanced owing to the recent development of essential research technologies, such as genome editing and RNA sequencing. Here, we reviewed the status of fate decisions of chicken PGCs and provided insight into other important research issues that require attention.
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Affiliation(s)
- Kennosuke Ichikawa
- Genome Editing Innovation Center, Hiroshima University, 3-10-23 Kagamiyama, Higashi-Hiroshima 739-0046, Hiroshima, Japan
- Correspondence:
| | - Hiroyuki Horiuchi
- Genome Editing Innovation Center, Hiroshima University, 3-10-23 Kagamiyama, Higashi-Hiroshima 739-0046, Hiroshima, Japan
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Hiroshima, Japan
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13
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Mitchell E, Tellez G, McGrew MJ. Chicken genome editing for investigating poultry pathogens. Avian Pathol 2023; 52:1-11. [PMID: 36278430 DOI: 10.1080/03079457.2022.2130173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Major advances in pathogen identification, treatment, vaccine development, and avian immunology have enabled the enormous expansion in global poultry production over the last 50 years. Looking forward, climate change, reduced feed, reduced water access, new avian pathogens and restrictions on the use of antimicrobials threaten to hamper further gains in poultry productivity and health. The development of novel in vitro cell culture systems, coupled with new genetic tools to investigate gene function, will aid in developing novel interventions for existing and newly emerging poultry pathogens. Our growing capacity to cryopreserve and generate genome-edited chicken lines will also be useful for developing improved chicken breeds for poultry farmers and conserving chicken genetic resources.
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Affiliation(s)
- Euan Mitchell
- The Roslin Institute & Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Guillermo Tellez
- The Roslin Institute & Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Mike J McGrew
- The Roslin Institute & Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
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14
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Fang C, Xiao G, Wang T, Song L, Peng B, Xu B, Zhang K. Emerging Nano-/Biotechnology Drives Oncolytic Virus-Activated and Combined Cancer Immunotherapy. RESEARCH 2023; 6:0108. [PMID: 37040283 PMCID: PMC10079287 DOI: 10.34133/research.0108] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 03/15/2023] [Indexed: 04/05/2023]
Abstract
Oncolytic viruses (OVs) as one promising antitumor methods have made important contributions to tumor immunotherapy, which arouse increasing attention. They provide the dual mechanisms including direct killing effect toward tumor cells and immune activation for elevating antitumor responses, which have been proved in many preclinical studies. Especially, natural or genetically modified viruses as clinical immune preparations have emerged as a new promising approach objective to oncology treatment. The approval of talimogene laherparepvec (T-VEC) by the U.S. Food and Drug Administration (FDA) for the therapy of advanced melanoma could be considered as a milestone achievement in the clinical translation of OV. In this review, we first discussed the antitumor mechanisms of OVs with an emphasis on targeting, replication, and propagation. We further outlined the state of the art of current OVs in tumor and underlined the activated biological effects especially including immunity. More significantly, the enhanced immune responses based on OVs were systematically discussed from different perspectives such as combination with immunotherapy, genetic engineering of OVs, integration with nanobiotechnology or nanoparticles, and antiviral response counteraction, where their principles were shed light on. The development of OVs in the clinics was also highlighted to analyze the actuality and concerns of different OV applications in clinical trials. At last, the future perspectives and challenges of OVs as an already widely accepted treatment means were discussed. This review will provide a systematic review and deep insight into OV development and also offer new opportunities and guidance pathways to drive the further clinical translation.
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Affiliation(s)
- Chao Fang
- Central Laboratory and Department of Urology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine,
Tongji University, No. 301 Yan-chang-zhong Road, Shanghai 200072, China
| | - Gaozhe Xiao
- National Center for International Research of Bio-targeting Theranostics,
Guangxi Medical University, No. 22 Shuangyong Road 22, Nanning, Guangxi 530021, China
| | - Taixia Wang
- Central Laboratory and Department of Urology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine,
Tongji University, No. 301 Yan-chang-zhong Road, Shanghai 200072, China
| | - Li Song
- Central Laboratory and Department of Urology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine,
Tongji University, No. 301 Yan-chang-zhong Road, Shanghai 200072, China
| | - Bo Peng
- Central Laboratory and Department of Urology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine,
Tongji University, No. 301 Yan-chang-zhong Road, Shanghai 200072, China
| | - Bin Xu
- Department of Urology, Shanghai Ninth People’s Hospital,
Shanghai Jiaotong University School of Medicine, No. 639 Zhizaoju Road, Huangpu, Shanghai 200011, China
| | - Kun Zhang
- Central Laboratory and Department of Urology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine,
Tongji University, No. 301 Yan-chang-zhong Road, Shanghai 200072, China
- National Center for International Research of Bio-targeting Theranostics,
Guangxi Medical University, No. 22 Shuangyong Road 22, Nanning, Guangxi 530021, China
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15
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Stevenson TJ, Liddle TA, Stewart C, Marshall CJ, Majumdar G. Neural programming of seasonal physiology in birds and mammals: A modular perspective. Horm Behav 2022; 142:105153. [PMID: 35325691 DOI: 10.1016/j.yhbeh.2022.105153] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/30/2022] [Accepted: 03/07/2022] [Indexed: 11/17/2022]
Abstract
Most animals in the temperate zone exhibit robust seasonal rhythms in neuroendocrine, physiological and behavioral processes. The integration of predictive and supplementary environmental cues (e.g., nutrients) involves a series of discrete, and interconnected brain regions that span hypothalamic, thalamic, mesencephalic, and limbic regions. Species-specific adaptive changes in these neuroendocrine structures and cellular plasticity have likely evolved to support seasonal life-history transitions. Despite significant advances in our understanding of ecological responses to predictive and supplementary environmental cues, there remains a paucity of literature on how these diverse cues impact the underlying neural and cellular substrates. To date, most scientific approach has focused on neuroendocrine responses to annual changes in daylength, referred to as photoperiod, due to the robust physiological changes to light manipulations in laboratory settings. In this review, we highlight the relatively few animal models that have been effectively used to investigate how predictive day lengths, and supplementary cues are integrated across hypothalamic nuclei, and discuss key findings of how seasonal rhythms in physiology are governed by adaptive neuroendocrine changes. We discuss how specific brain regions integrate environmental cues to form a complex multiunit or 'modular' system that has evolved to optimize the timing of seasonal physiology. Overall, the review aims to highlight the existence of a modular network of neural regions that independently contribute to timing seasonal physiology. This paper proposes that a multi-modular neuroendocrine system has evolved in which independent neural 'units' operate to support species-specific seasonal rhythms.
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Affiliation(s)
- Tyler J Stevenson
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G61 1QH, United Kingdom.
| | - Timothy A Liddle
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G61 1QH, United Kingdom
| | - Calum Stewart
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G61 1QH, United Kingdom
| | - Christopher J Marshall
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G61 1QH, United Kingdom
| | - Gaurav Majumdar
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G61 1QH, United Kingdom
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16
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Haynes EM, Ulland TK, Eliceiri KW. A Model of Discovery: The Role of Imaging Established and Emerging Non-mammalian Models in Neuroscience. Front Mol Neurosci 2022; 15:867010. [PMID: 35493325 PMCID: PMC9046975 DOI: 10.3389/fnmol.2022.867010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/18/2022] [Indexed: 11/24/2022] Open
Abstract
Rodents have been the dominant animal models in neurobiology and neurological disease research over the past 60 years. The prevalent use of rats and mice in neuroscience research has been driven by several key attributes including their organ physiology being more similar to humans, the availability of a broad variety of behavioral tests and genetic tools, and widely accessible reagents. However, despite the many advances in understanding neurobiology that have been achieved using rodent models, there remain key limitations in the questions that can be addressed in these and other mammalian models. In particular, in vivo imaging in mammals at the cell-resolution level remains technically difficult and demands large investments in time and cost. The simpler nervous systems of many non-mammalian models allow for precise mapping of circuits and even the whole brain with impressive subcellular resolution. The types of non-mammalian neuroscience models available spans vertebrates and non-vertebrates, so that an appropriate model for most cell biological questions in neurodegenerative disease likely exists. A push to diversify the models used in neuroscience research could help address current gaps in knowledge, complement existing rodent-based bodies of work, and bring new insight into our understanding of human disease. Moreover, there are inherent aspects of many non-mammalian models such as lifespan and tissue transparency that can make them specifically advantageous for neuroscience studies. Crispr/Cas9 gene editing and decreased cost of genome sequencing combined with advances in optical microscopy enhances the utility of new animal models to address specific questions. This review seeks to synthesize current knowledge of established and emerging non-mammalian model organisms with advances in cellular-resolution in vivo imaging techniques to suggest new approaches to understand neurodegeneration and neurobiological processes. We will summarize current tools and in vivo imaging approaches at the single cell scale that could help lead to increased consideration of non-mammalian models in neuroscience research.
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Affiliation(s)
- Elizabeth M. Haynes
- Morgridge Institute for Research, Madison, WI, United States
- Center for Quantitative Cell Imaging, University of Wisconsin-Madison, Madison, WI, United States
| | - Tyler K. Ulland
- Department of Pathology, University of Wisconsin-Madison, Madison, WI, United States
| | - Kevin W. Eliceiri
- Morgridge Institute for Research, Madison, WI, United States
- Center for Quantitative Cell Imaging, University of Wisconsin-Madison, Madison, WI, United States
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States
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17
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Koslová A, Trefil P, Mucksová J, Krchlíková V, Plachý J, Krijt J, Reinišová M, Kučerová D, Geryk J, Kalina J, Šenigl F, Elleder D, Kožich V, Hejnar J. Knock-Out of Retrovirus Receptor Gene Tva in the Chicken Confers Resistance to Avian Leukosis Virus Subgroups A and K and Affects Cobalamin (Vitamin B 12)-Dependent Level of Methylmalonic Acid. Viruses 2021; 13:v13122504. [PMID: 34960774 PMCID: PMC8708277 DOI: 10.3390/v13122504] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 01/18/2023] Open
Abstract
The chicken Tva cell surface protein, a member of the low-density lipoprotein receptor family, has been identified as an entry receptor for avian leukosis virus of classic subgroup A and newly emerging subgroup K. Because both viruses represent an important concern for the poultry industry, we introduced a frame-shifting deletion into the chicken tva locus with the aim of knocking-out Tva expression and creating a virus-resistant chicken line. The tva knock-out was prepared by CRISPR/Cas9 gene editing in chicken primordial germ cells and orthotopic transplantation of edited cells into the testes of sterilized recipient roosters. The resulting tva −/− chickens tested fully resistant to avian leukosis virus subgroups A and K, both in in vitro and in vivo assays, in contrast to their susceptible tva +/+ and tva +/− siblings. We also found a specific disorder of the cobalamin/vitamin B12 metabolism in the tva knock-out chickens, which is in accordance with the recently recognized physiological function of Tva as a receptor for cobalamin in complex with transcobalamin transporter. Last but not least, we bring a new example of the de novo resistance created by CRISPR/Cas9 editing of pathogen dependence genes in farm animals and, furthermore, a new example of gene editing in chicken.
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Affiliation(s)
- Anna Koslová
- Institute of Molecular Genetics, Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (A.K.); (V.K.); (J.P.); (M.R.); (D.K.); (J.G.); (F.Š.); (D.E.)
| | - Pavel Trefil
- BIOPHARM, Research Institute of Biopharmacy and Veterinary Drugs, Pohoří-Chotouň 90, 254 49 Jílové u Prahy, Czech Republic; (P.T.); (J.M.); (J.K.)
| | - Jitka Mucksová
- BIOPHARM, Research Institute of Biopharmacy and Veterinary Drugs, Pohoří-Chotouň 90, 254 49 Jílové u Prahy, Czech Republic; (P.T.); (J.M.); (J.K.)
| | - Veronika Krchlíková
- Institute of Molecular Genetics, Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (A.K.); (V.K.); (J.P.); (M.R.); (D.K.); (J.G.); (F.Š.); (D.E.)
| | - Jiří Plachý
- Institute of Molecular Genetics, Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (A.K.); (V.K.); (J.P.); (M.R.); (D.K.); (J.G.); (F.Š.); (D.E.)
| | - Jakub Krijt
- Department of Pediatrics and Inherited Metabolic Disorders, Charles University, First Faculty of Medicine and General University Hospital in Prague, 128 08 Prague, Czech Republic; (J.K.); (V.K.)
| | - Markéta Reinišová
- Institute of Molecular Genetics, Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (A.K.); (V.K.); (J.P.); (M.R.); (D.K.); (J.G.); (F.Š.); (D.E.)
| | - Dana Kučerová
- Institute of Molecular Genetics, Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (A.K.); (V.K.); (J.P.); (M.R.); (D.K.); (J.G.); (F.Š.); (D.E.)
| | - Josef Geryk
- Institute of Molecular Genetics, Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (A.K.); (V.K.); (J.P.); (M.R.); (D.K.); (J.G.); (F.Š.); (D.E.)
| | - Jiří Kalina
- BIOPHARM, Research Institute of Biopharmacy and Veterinary Drugs, Pohoří-Chotouň 90, 254 49 Jílové u Prahy, Czech Republic; (P.T.); (J.M.); (J.K.)
| | - Filip Šenigl
- Institute of Molecular Genetics, Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (A.K.); (V.K.); (J.P.); (M.R.); (D.K.); (J.G.); (F.Š.); (D.E.)
| | - Daniel Elleder
- Institute of Molecular Genetics, Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (A.K.); (V.K.); (J.P.); (M.R.); (D.K.); (J.G.); (F.Š.); (D.E.)
| | - Viktor Kožich
- Department of Pediatrics and Inherited Metabolic Disorders, Charles University, First Faculty of Medicine and General University Hospital in Prague, 128 08 Prague, Czech Republic; (J.K.); (V.K.)
| | - Jiří Hejnar
- Institute of Molecular Genetics, Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic; (A.K.); (V.K.); (J.P.); (M.R.); (D.K.); (J.G.); (F.Š.); (D.E.)
- Correspondence:
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18
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Generation of in situ CRISPR-mediated primary and metastatic cancer from monkey liver. Signal Transduct Target Ther 2021; 6:411. [PMID: 34857736 PMCID: PMC8640017 DOI: 10.1038/s41392-021-00799-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/30/2021] [Accepted: 10/18/2021] [Indexed: 12/11/2022] Open
Abstract
Non-human primates (NHPs) represent the most valuable animals for drug discovery. However, the current main challenge remains that the NHP has not yet been used to develop an efficient translational medicine platform simulating human diseases, such as cancer. This study generated an in situ gene-editing approach to induce efficient loss-of-function mutations of Pten and p53 genes for rapid modeling primary and metastatic liver tumors using the CRISPR/Cas9 in the adult cynomolgus monkey. Under ultrasound guidance, the CRISPR/Cas9 was injected into the cynomolgus monkey liver through the intrahepatic portal vein. The results showed that the ultrasound-guided CRISPR/Cas9 resulted in indels of the Pten and p53 genes in seven out of eight monkeys. The best mutation efficiencies for Pten and p53 were up to 74.71% and 74.68%, respectively. Furthermore, the morbidity of primary and extensively metastatic (lung, spleen, lymph nodes) hepatoma in CRISPR-treated monkeys was 87.5%. The ultrasound-guided CRISPR system could have great potential to successfully pursue the desired target genes, thereby reducing possible side effects associated with hitting non-specific off-target genes, and significantly increasing more efficiency as well as higher specificity of in situ gene editing in vivo, which holds promise as a powerful, yet feasible tool, to edit disease genes to build corresponding human disease models in adult NHPs and to greatly accelerate the discovery of new drugs and save economic costs.
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19
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Flores-Santin J, Burggren WW. Beyond the Chicken: Alternative Avian Models for Developmental Physiological Research. Front Physiol 2021; 12:712633. [PMID: 34744759 PMCID: PMC8566884 DOI: 10.3389/fphys.2021.712633] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/13/2021] [Indexed: 12/23/2022] Open
Abstract
Biomedical research focusing on physiological, morphological, behavioral, and other aspects of development has long depended upon the chicken (Gallus gallus domesticus) as a key animal model that is presumed to be typical of birds and generally applicable to mammals. Yet, the modern chicken in its many forms is the result of artificial selection more intense than almost any other domesticated animal. A consequence of great variation in genotype and phenotype is that some breeds have inherent aberrant physiological and morphological traits that may show up relatively early in development (e.g., hypertension, hyperglycemia, and limb defects in the broiler chickens). While such traits can be useful as models of specific diseases, this high degree of specialization can color general experimental results and affect their translational value. Against this background, in this review we first consider the characteristics that make an animal model attractive for developmental research (e.g., accessibility, ease of rearing, size, fecundity, development rates, genetic variation, etc.). We then explore opportunities presented by the embryo to adult continuum of alternative bird models, including quail, ratites, songbirds, birds of prey, and corvids. We conclude by indicating that expanding developmental studies beyond the chicken model to include additional avian groups will both validate the chicken model as well as potentially identify even more suitable avian models for answering questions applicable to both basic biology and the human condition.
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Affiliation(s)
- Josele Flores-Santin
- Facultad de Ciencias, Biologia, Universidad Autónoma del Estado de Mexico, Toluca, Mexico
| | - Warren W Burggren
- Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas Denton, Denton, TX, United States
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20
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Mahesh KC, Ngunjiri JM, Ghorbani A, Abundo MEC, Wilbanks KQ, Lee K, Lee CW. Assessment of TLR3 and MDA5-Mediated Immune Responses Using Knockout Quail Fibroblast Cells. Avian Dis 2021; 65:419-428. [PMID: 34427417 DOI: 10.1637/0005-2086-65.3.419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 06/21/2021] [Indexed: 11/05/2022]
Abstract
Toll-like receptor 3 (TLR3) and melanoma differentiation-associated gene 5 (MDA5) are double-stranded RNA (dsRNA)-recognizing receptors that mediate innate immune responses to virus infection. However, the roles played by these receptors in the pathogenesis of avian viruses are poorly understood. In this study, we generated TLR3 and MDA5 single knockout (SKO) and TLR3-MDA5 double knockout (DKO) quail fibroblast cells and examined dsRNA receptor-mediated innate immune responses in vitro. The knockout cells were then stimulated with a synthetic dsRNA ligand polyinosinic:polycytidylic acid [poly(I:C)] or influenza A virus. Endosomal stimulation of TLR3 by adding poly(I:C) in cell culture media or cytoplasmic stimulation of MDA5 by transfecting poly(I:C) resulted in significant increases of TLR3, MDA5, interferon (IFN) β, and interleukin 8 gene expression levels in wild type (WT) cells. Endosomal poly(I:C) treatment induced a higher level expression of most of the genes tested in MDA5 SKO cells compared with WT cells, but not in TLR3 SKO and DKO cells. Cytoplasmic transfection of poly(I:C) led to significant upregulation of all four genes in WT, TLR3 SKO, and MDA5 SKO cells at 8 hr posttransfection and negligible gene expression changes in TLR3-MDA5 DKO cells. Upon infection with a strain of influenza virus with compromised IFN antagonistic capability, WT cells produced the highest amount of biologically active type I IFN followed by TLR3 SKO and MDA5 SKO cells. DKO cells did not produce detectable amounts of type I IFN. However, the IFN did not induce an antiviral state fast enough to block virus replication, even in WT cells under the experimental conditions employed. In summary, our data demonstrate that TLR3 and MDA5 are the key functional dsRNA receptors in quail and imply their coordinated roles in the induction of innate immune responses upon virus infection.
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Affiliation(s)
- K C Mahesh
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691.,Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210
| | - John M Ngunjiri
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691
| | - Amir Ghorbani
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691.,Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210
| | - Michael E C Abundo
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691
| | | | - Kichoon Lee
- Department of Animal Sciences, College of Food, Agricultural, and Environmental Sciences, The Ohio State University, Columbus, OH 43210
| | - Chang-Won Lee
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691, .,Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210
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21
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Jung KM, Kim YM, Kim JL, Han JY. Efficient gene transfer into zebra finch germline-competent stem cells using an adenoviral vector system. Sci Rep 2021; 11:14746. [PMID: 34285320 PMCID: PMC8292312 DOI: 10.1038/s41598-021-94229-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 07/07/2021] [Indexed: 11/09/2022] Open
Abstract
Zebra finch is a representative animal model for studying the molecular basis of human disorders of vocal development and communication. Accordingly, various functional studies of zebra finch have knocked down or introduced foreign genes in vivo; however, their germline transmission efficiency is remarkably low. The primordial germ cell (PGC)-mediated method is preferred for avian transgenic studies; however, use of this method is restricted in zebra finch due to the lack of an efficient gene transfer method for the germline. To target primary germ cells that are difficult to transfect and manipulate, an adenovirus-mediated gene transfer system with high efficiency in a wide range of cell types may be useful. Here, we isolated and characterized two types of primary germline-competent stem cells, PGCs and spermatogonial stem cells (SSCs), from embryonic and adult reproductive tissues of zebra finch and demonstrated that genes were most efficiently transferred into these cells using an adenovirus-mediated system. This system was successfully used to generate gene-edited PGCs in vitro. These results are expected to improve transgenic zebra finch production.
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Affiliation(s)
- Kyung Min Jung
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea
| | - Young Min Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea
| | - Jin Lee Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea
| | - Jae Yong Han
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea.
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22
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Yang H, Lee BR, Lee HC, Choi H, Jung SK, Kim JY, No J, Shanmugam S, Jo YJ, Oh KB, Kim KW, Byun SJ. Development and in vitro evaluation of recombinant chicken promoters to efficiently drive transgene expression in chicken oviduct cells. Poult Sci 2021; 100:101365. [PMID: 34375836 PMCID: PMC8358702 DOI: 10.1016/j.psj.2021.101365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 06/19/2021] [Accepted: 06/24/2021] [Indexed: 12/04/2022] Open
Abstract
Virus injection into EGK-X embryos is a well-defined approach in avian transgenesis. This system uses a chicken ovalbumin gene promoter to induce transgene expression in the chicken oviduct. Although a reconstructed chicken ovalbumin promoter that links an ovalbumin promoter and estrogen-responsive enhancer element (ERE) is useful, a large viral vector containing the ovalbumin promoter and a target gene restricts viral packaging capacity and produces low-titer virus particles. We newly developed recombinant chicken promoters by linking regulatory regions of ovalbumin and other oviduct-specific genes. Putative enhancer fragments of the genes, such as ovotransferrin (TF), ovomucin alpha subunit (OVOA), and ovalbumin-related protein X (OVALX), were placed at the 5`-flanking region of the 2.8-kb ovalbumin promoter. Basal promoter fragments of the genes, namely, pTF, lysozyme (pLYZ), and ovomucoid (pOVM), were placed at the 3`-flanking region of the 1.6-kb ovalbumin ERE. The recombinant promoters cloned into each reporter vector were evaluated using a dual luciferase assay in human and chicken somatic cells, and LMH/2A cells treated with 0-1,000 nM estrogen, and cultured primary chicken oviduct cells. The recombinant promoters with linking ovalbumin and TF, OVOA, pOVM, and pLYZ regulatory regions had 2.1- to 19.5-fold (P < 0.05) higher luciferase activity than the reconstructed ovalbumin promoter in chicken oviduct cells. Therefore, recombinant promoters may be used to efficiently drive transgene expression in transgenic chickens.
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Affiliation(s)
- Hyeon Yang
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Bo Ram Lee
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Hwi-Cheul Lee
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Hoonsung Choi
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Sun Keun Jung
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Ji-Youn Kim
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Jingu No
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Sureshkumar Shanmugam
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Yong Jin Jo
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Keon Bong Oh
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Kyung Woon Kim
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea
| | - Sung June Byun
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Republic of Korea.
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23
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Abstract
Avian species are used as model systems in research and have contributed to ground-breaking concepts in developmental biology, immunology, genetics, virology, cancer and cell biology. The chicken in particular is an important research model and an agricultural animal as a major contributor to animal protein resources for the global population. The development of genome editing methods, including CRISPR/Cas9, to mediate germline engineering of the avian genome will have important applications in biomedical, agricultural and biotechnological activities. Notably, these precise genome editing tools have the potential to enhance avian health and productivity by identifying and validating beneficial genetic variants in bird populations. Here, we present a concise description of the existing methods and current applications of the genome editing tools in bird species, focused on chickens, with attention on animal use and welfare issues for each of the techniques presented.
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Affiliation(s)
- Sudeepta K Panda
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, UK
| | - Mike J McGrew
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, UK
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24
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Rieblinger B, Sid H, Duda D, Bozoglu T, Klinger R, Schlickenrieder A, Lengyel K, Flisikowski K, Flisikowska T, Simm N, Grodziecki A, Perleberg C, Bähr A, Carrier L, Kurome M, Zakhartchenko V, Kessler B, Wolf E, Kettler L, Luksch H, Hagag IT, Wise D, Kaufman J, Kaufer BB, Kupatt C, Schnieke A, Schusser B. Cas9-expressing chickens and pigs as resources for genome editing in livestock. Proc Natl Acad Sci U S A 2021; 118:e2022562118. [PMID: 33658378 PMCID: PMC7958376 DOI: 10.1073/pnas.2022562118] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Genetically modified animals continue to provide important insights into the molecular basis of health and disease. Research has focused mostly on genetically modified mice, although other species like pigs resemble the human physiology more closely. In addition, cross-species comparisons with phylogenetically distant species such as chickens provide powerful insights into fundamental biological and biomedical processes. One of the most versatile genetic methods applicable across species is CRISPR-Cas9. Here, we report the generation of transgenic chickens and pigs that constitutively express Cas9 in all organs. These animals are healthy and fertile. Functionality of Cas9 was confirmed in both species for a number of different target genes, for a variety of cell types and in vivo by targeted gene disruption in lymphocytes and the developing brain, and by precise excision of a 12.7-kb DNA fragment in the heart. The Cas9 transgenic animals will provide a powerful resource for in vivo genome editing for both agricultural and translational biomedical research, and will facilitate reverse genetics as well as cross-species comparisons.
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Affiliation(s)
- Beate Rieblinger
- Livestock Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Hicham Sid
- Reproductive Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Denise Duda
- Reproductive Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Tarik Bozoglu
- Clinic and Polyclinic for Internal Medicine I, Klinikum rechts der Isar, Technical University Munich, 81675 Munich, Germany
- Munich Heart Alliance, German Center for Cardiovascular Research, 81675 Munich, Germany
| | - Romina Klinger
- Reproductive Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Antonina Schlickenrieder
- Reproductive Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Kamila Lengyel
- Reproductive Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Krzysztof Flisikowski
- Livestock Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Tatiana Flisikowska
- Livestock Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Nina Simm
- Livestock Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Alessandro Grodziecki
- Livestock Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Carolin Perleberg
- Livestock Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Andrea Bähr
- Clinic and Polyclinic for Internal Medicine I, Klinikum rechts der Isar, Technical University Munich, 81675 Munich, Germany
- Munich Heart Alliance, German Center for Cardiovascular Research, 81675 Munich, Germany
| | - Lucie Carrier
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg Eppendorf, 20246 Hamburg, Germany
- Institute of Experimental Pharmacology and Toxicology, German Centre for Cardiovascular Research, 20246 Hamburg, Germany
| | - Mayuko Kurome
- Gene Center, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
- Molecular Animal Breeding and Biotechnology, Department of Veterinary Sciences, Ludwig-Maximilians-Universität München, 81377 München, Germany
| | - Valeri Zakhartchenko
- Gene Center, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
- Molecular Animal Breeding and Biotechnology, Department of Veterinary Sciences, Ludwig-Maximilians-Universität München, 81377 München, Germany
| | - Barbara Kessler
- Gene Center, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
- Molecular Animal Breeding and Biotechnology, Department of Veterinary Sciences, Ludwig-Maximilians-Universität München, 81377 München, Germany
| | - Eckhard Wolf
- Gene Center, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
- Molecular Animal Breeding and Biotechnology, Department of Veterinary Sciences, Ludwig-Maximilians-Universität München, 81377 München, Germany
| | - Lutz Kettler
- Zoology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Harald Luksch
- Zoology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany
| | - Ibrahim T Hagag
- Department of Veterinary Medicine, Institute of Virology, Freie Universität Berlin, 14163 Berlin, Germany
| | - Daniel Wise
- Department of Pathology, University of Cambridge, CB2 1QP Cambridge, United Kingdom
| | - Jim Kaufman
- Department of Pathology, University of Cambridge, CB2 1QP Cambridge, United Kingdom
- Institute for Immunology and Infection Research, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, United Kingdom
| | - Benedikt B Kaufer
- Department of Veterinary Medicine, Institute of Virology, Freie Universität Berlin, 14163 Berlin, Germany;
| | - Christian Kupatt
- Clinic and Polyclinic for Internal Medicine I, Klinikum rechts der Isar, Technical University Munich, 81675 Munich, Germany;
- Munich Heart Alliance, German Center for Cardiovascular Research, 81675 Munich, Germany
| | - Angelika Schnieke
- Livestock Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany;
| | - Benjamin Schusser
- Reproductive Biotechnology, Department of Molecular Life Sciences, School of Life Sciences Weihenstephan, Technical University Munich, 85354 Freising, Germany;
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25
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Khwatenge CN, Nahashon SN. Recent Advances in the Application of CRISPR/Cas9 Gene Editing System in Poultry Species. Front Genet 2021; 12:627714. [PMID: 33679892 PMCID: PMC7933658 DOI: 10.3389/fgene.2021.627714] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/19/2021] [Indexed: 12/28/2022] Open
Abstract
CRISPR/Cas9 system genome editing is revolutionizing genetics research in a wide spectrum of animal models in the genetic era. Among these animals, is the poultry species. CRISPR technology is the newest and most advanced gene-editing tool that allows researchers to modify and alter gene functions for transcriptional regulation, gene targeting, epigenetic modification, gene therapy, and drug delivery in the animal genome. The applicability of the CRISPR/Cas9 system in gene editing and modification of genomes in the avian species is still emerging. Up to date, substantial progress in using CRISPR/Cas9 technology has been made in only two poultry species (chicken and quail), with chicken taking the lead. There have been major recent advances in the modification of the avian genome through their germ cell lineages. In the poultry industry, breeders and producers can utilize CRISPR-mediated approaches to enhance the many required genetic variations towards the poultry population that are absent in a given poultry flock. Thus, CRISPR allows the benefit of accessing genetic characteristics that cannot otherwise be used for poultry production. Therefore CRISPR/Cas9 becomes a very powerful and robust tool for editing genes that allow for the introduction or regulation of genetic information in poultry genomes. However, the CRISPR/Cas9 technology has several limitations that need to be addressed to enhance its use in the poultry industry. This review evaluates and provides a summary of recent advances in applying CRISPR/Cas9 gene editing technology in poultry research and explores its potential use in advancing poultry breeding and production with a major focus on chicken and quail. This could aid future advancements in the use of CRISPR technology to improve poultry production.
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Affiliation(s)
- Collins N. Khwatenge
- Department of Biological Sciences, Tennessee State University, Nashville, IN, United States
- Department of Agriculture and Environmental Sciences, Tennessee State University, Nashville, TN, United States
| | - Samuel N. Nahashon
- Department of Agriculture and Environmental Sciences, Tennessee State University, Nashville, TN, United States
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26
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Kim DH, Lee J, Suh Y, Lee K. Necessity for Validation of Effectiveness of Selected Guide RNA In Silico for Application of CRISPR/Cas9. Mol Biotechnol 2021; 63:140-149. [PMID: 33386580 DOI: 10.1007/s12033-020-00290-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2020] [Indexed: 12/26/2022]
Abstract
Selection of guide RNA (gRNA) is important to increase the efficiency of gene editing in the CRISPR/Cas9 system. Due to the variation in actual efficiency of insertion/deletion (indel) mutation among selected gRNAs in silico, reliable methods for validation of efficiency of gRNA need to be developed. Three gRNAs with high on-target scores (72.0 for target 1, 65.4 for target 2, and 62.9 for target 3) were designed to target the quail retinol binding protein 7 (qRbp7) gene, and indel efficiencies were predicted by the Sanger sequencing and Inference of CRISPR Edits (ICE) analysis of sorted cell populations receiving the CRISPR/Cas9 vector. Unlike the order of on-target scores among 3 gRNAs, predicted rates of indel mutations were highest in gRNA2, intermediate in gRNA1, and lowest in gRNA3. This was confirmed by actual indel mutation rates, 51.8% in gRNA2, 31% in gRNA1, and 12.9% in gRNA3, which were calculated by sequencing individual allele cloned into a vector. These data showed a rapid and reliable method for estimation of the efficiency of selected gRNAs, providing a critical necessary step for successful gene editing for further applications.
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Affiliation(s)
- Dong-Hwan Kim
- Department of Animal Sciences, The Ohio State University, Columbus, OH, 43210, USA
| | - Joonbum Lee
- Department of Animal Sciences, The Ohio State University, Columbus, OH, 43210, USA
- Interdisciplinary Ph.D. Program in Nutrition, The Ohio State University, Columbus, OH, 43210, USA
| | - Yeunsu Suh
- Department of Animal Sciences, The Ohio State University, Columbus, OH, 43210, USA
| | - Kichoon Lee
- Department of Animal Sciences, The Ohio State University, Columbus, OH, 43210, USA.
- Interdisciplinary Ph.D. Program in Nutrition, The Ohio State University, Columbus, OH, 43210, USA.
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27
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Ballantyne M, Woodcock M, Doddamani D, Hu T, Taylor L, Hawken RJ, McGrew MJ. Direct allele introgression into pure chicken breeds using Sire Dam Surrogate (SDS) mating. Nat Commun 2021; 12:659. [PMID: 33510156 PMCID: PMC7844028 DOI: 10.1038/s41467-020-20812-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/21/2020] [Indexed: 12/16/2022] Open
Abstract
Poultry is the most abundant livestock species with over 60 billion chickens raised globally per year. The majority of chicken are produced from commercial flocks, however many indigenous chicken breeds play an important role in rural economies as they are well adapted to local environmental and scavenging conditions. The ability to make precise genetic changes in chicken will permit the validation of genetic variants responsible for climate adaptation and disease resilience, and the transfer of beneficial alleles between breeds. Here, we generate a novel inducibly sterile surrogate host chicken. Introducing donor genome edited primordial germ cells into the sterile male and female host embryos produces adult chicken carrying only exogenous germ cells. Subsequent direct mating of the surrogate hosts, Sire Dam Surrogate (SDS) mating, recreates the donor chicken breed carrying the edited allele in a single generation. We demonstrate the introgression and validation of two feather trait alleles, Dominant white and Frizzle into two pure chicken breeds using the SDS surrogate hosts. Chicken are a biological model and an important agricultural animal. Here, the authors demonstrate that pure breed genome edited chicks can be produced for any chicken breed by direct mating of sterile surrogate hosts carrying donor genome edited germ cells.
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Affiliation(s)
- Maeve Ballantyne
- Centre for Tropical Livestock Genetics and Health (CTLGH), Edinburgh, UK.,The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK
| | - Mark Woodcock
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK
| | - Dadakhalandar Doddamani
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK
| | - Tuanjun Hu
- Centre for Tropical Livestock Genetics and Health (CTLGH), Edinburgh, UK.,The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK
| | - Lorna Taylor
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK
| | | | - Mike J McGrew
- Centre for Tropical Livestock Genetics and Health (CTLGH), Edinburgh, UK. .,The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK.
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28
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Abstract
For more than 2000 years, the avian embryo has helped scientists understand questions of developmental and cell biology. As early as 350 BC Aristotle described embryonic development inside a chicken egg (Aristotle, Generation of animals. Loeb Classical Library (translated), vol. 8, 1943). In the seventeenth century, Marcello Malpighi, referred to as the father of embryology, first diagramed the microscopic morphogenesis of the chick embryo, including extensive characterization of the cardiovascular system (Pearce Eur Neurol 58(4):253-255, 2007; West, Am J Physiol Lung Cell Mol Physiol 304(6):L383-L390, 2016). The ease of accessibility to the embryo and similarity to mammalian development have made avians a powerful system among model organisms. Currently, a unique combination of classical and modern techniques is employed for investigation of the vascular system in the avian embryo. Here, we will introduce the essential techniques of embryonic manipulation for experimental study in vascular biology.
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Affiliation(s)
- Rieko Asai
- Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA, USA
- Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Michael Bressan
- Department of Cell Biology and Physiology, McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Takashi Mikawa
- Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA, USA.
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29
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Chojnacka-Puchta L, Sawicka D. CRISPR/Cas9 gene editing in a chicken model: current approaches and applications. J Appl Genet 2020; 61:221-229. [PMID: 31925767 PMCID: PMC7148258 DOI: 10.1007/s13353-020-00537-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Improvements in genome editing technology in birds using primordial germ cells (PGCs) have made the development of innovative era genome-edited avian models possible, including specific chicken bioreactors, production of knock-in/out chickens, low-allergenicity eggs, and disease-resistance models. New strategies, including CRISPR/Cas9, have made gene editing easy and highly efficient in comparison to the well-known process of homologous recombination. The clustered regularly interspaced short palindromic repeats (CRISPR) technique enables us to understand the function of genes and/or to modify the animal phenotype to fit a specific scientific or production target. To facilitate chicken genome engineering applications, we present a concise description of the method and current application of the CRISPR/Cas9 system in chickens. Different strategies for delivering sgRNAs and the Cas9 protein, we also present extensively. Furthermore, we describe a new gesicle technology as a way to deliver Cas9/sgRNA complexes into target cells, and we discuss the advantages and describe basal applications of the CRISPR/Cas9 system in a chicken model.
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Affiliation(s)
- Luiza Chojnacka-Puchta
- Department of Bioengineering, Lukasiewicz Research Network, Institute of Biotechnology and Antibiotics, Staroscinska 5, 02-516, Warsaw, Poland. .,Department of Chemical, Biological and Aerosol Hazards, Central Institute for Labour Protection-National Research Institute, Czerniakowska 16, 00-701, Warsaw, Poland.
| | - Dorota Sawicka
- Department of Bioengineering, Lukasiewicz Research Network, Institute of Biotechnology and Antibiotics, Staroscinska 5, 02-516, Warsaw, Poland.,Department of Chemical, Biological and Aerosol Hazards, Central Institute for Labour Protection-National Research Institute, Czerniakowska 16, 00-701, Warsaw, Poland
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30
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Yang H, Lee BR, Lee HC, Jung SK, Kim JY, No J, Shanmugam S, Jo YJ, Lee H, Hwang S, Byun SJ. Isolation and characterization of cultured chicken oviduct epithelial cells and in vitro validation of constructed ovalbumin promoter in these cells. Anim Biosci 2020; 34:1321-1330. [PMID: 33332940 PMCID: PMC8255889 DOI: 10.5713/ab.20.0627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/07/2020] [Indexed: 01/29/2023] Open
Abstract
Objective Transgenic hens hold a great promise to produce various valuable proteins. Through virus transduction into stage X embryo, the transgene expression under the control of constructed chicken ovalbumin promoters has been successfully achieved. However, a validation system that can evaluate differently developed ovalbumin promoters in in vitro, remains to be developed. Methods In the present study, chicken oviduct epithelial cells (cOECs) were isolated from oviduct tissue and shortly cultured with keratinocyte complete medium supplemented with chicken serum. The isolated cells were characterized with immunofluorescence, western blot, and flow cytometry using oviduct-specific marker. Chicken mutated ovalbumin promoter (Mut-4.4-kb-pOV) was validated in these cells using luciferase reporter analysis. Results The isolated cOECs revealed that the oviduct-specific marker, ovalbumin protein, was clearly detected by immunofluorescence, western blot, and flow cytometry analysis revealed that approximately 79.40% of the cells contained this protein. Also, luciferase reporter analysis showed that the constructed Mut-4.4-kb-pOV exhibited 7.1-fold (p<0.001) higher activity in the cOECs. Conclusion Collectively, these results demonstrate the efficient isolation and characterization of cOECs and validate the activity of the constructed ovalbumin promoter in the cultured cOECs. The in vitro validation of the recombinant promoter activity in cOECs can facilitate the production of efficient transgenic chickens for potential use as bioreactors.
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Affiliation(s)
- Hyeon Yang
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Bo Ram Lee
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Hwi-Cheul Lee
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Sun Keun Jung
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Ji-Youn Kim
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Jingu No
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Sureshkumar Shanmugam
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Yong Jin Jo
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Haesun Lee
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Seongsoo Hwang
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Sung June Byun
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
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31
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Park JS, Lee KY, Han JY. Precise Genome Editing in Poultry and Its Application to Industries. Genes (Basel) 2020; 11:genes11101182. [PMID: 33053652 PMCID: PMC7601607 DOI: 10.3390/genes11101182] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/06/2020] [Accepted: 10/10/2020] [Indexed: 12/26/2022] Open
Abstract
Poultry such as chickens are valuable model animals not only in the food industry, but also in developmental biology and biomedicine. Recently, precise genome-editing technologies mediated by the CRISPR/Cas9 system have developed rapidly, enabling the production of genome-edited poultry models with novel traits that are applicable to basic sciences, agriculture, and biomedical industry. In particular, these techniques have been combined with cultured primordial germ cells (PGCs) and viral vector systems to generate a valuable genome-edited avian model for a variety of purposes. Here, we summarize recent progress in CRISPR/Cas9-based genome-editing technology and its applications to avian species. In addition, we describe further applications of genome-edited poultry in various industries.
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32
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Kc M, Ngunjiri JM, Lee J, Ahn J, Elaish M, Ghorbani A, Abundo MEC, Lee K, Lee CW. Avian Toll-like receptor 3 isoforms and evaluation of Toll-like receptor 3-mediated immune responses using knockout quail fibroblast cells. Poult Sci 2020; 99:6513-6524. [PMID: 33248566 PMCID: PMC7704946 DOI: 10.1016/j.psj.2020.09.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 08/12/2020] [Accepted: 09/11/2020] [Indexed: 12/28/2022] Open
Abstract
Toll-like receptor 3 (TLR3) induces host innate immune response on recognition of viral double-stranded RNA (dsRNA). Although several studies of avian TLR3 have been reported, none of these studies used a gene knockout (KO) model to directly assess its role in inducing the immune response and effect on other dsRNA receptors. In this study, we determined the coding sequence of quail TLR3, identified isoforms, and generated TLR3 KO quail fibroblast (QT-35) cells using a CRISPR/Cas9 system optimized for avian species. The TLR3-mediated immune response was studied by stimulating the wild-type (WT) and KO QT-35 cells with synthetic dsRNA or polyinosinic:polycytidylic acid [poly(I:C)] or infecting the cells with different RNA viruses such as influenza A virus, avian reovirus, and vesicular stomatitis virus. The direct poly(I:C) treatment significantly increased IFN-β and IL-8 gene expression along with the cytoplasmic dsRNA receptor, melanoma differentiation-associated gene 5 (MDA5), in WT cells, whereas no changes in all corresponding genes were observed in KO cells. We further confirmed the antiviral effects of poly(I:C)-induced TLR3-mediated immunity by demonstrating significant reduction of virus titer in poly(I:C)-treated WT cells, but not in TLR3 KO cells. On virus infection, varying levels of IFN-β, IL-8, TLR3, and MDA5 gene upregulation were observed depending on the viruses. No major differences in gene expression level were observed between WT and TLR3 KO cells, which suggests a relatively minor role of TLR3 in sensing and exerting immune response against the viruses tested in vitro. Our data show that quail TLR3 is an important endosomal dsRNA receptor responsible for regulation of type I interferon and proinflammatory cytokine, and affect the expression of MDA5, another dsRNA receptor, most likely through cytokine-mediated communication.
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Affiliation(s)
- Mahesh Kc
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, USA; Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, USA
| | - John M Ngunjiri
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, USA
| | - Joonbum Lee
- Department of Animal Sciences, College of Food, Agricultural, and Environmental Sciences, The Ohio State University, Columbus, USA
| | - Jinsoo Ahn
- Department of Animal Sciences, College of Food, Agricultural, and Environmental Sciences, The Ohio State University, Columbus, USA
| | - Mohamed Elaish
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, USA; Poultry Diseases Department, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
| | - Amir Ghorbani
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, USA; Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, USA
| | - Michael E C Abundo
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, USA; Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, USA
| | - Kichoon Lee
- Department of Animal Sciences, College of Food, Agricultural, and Environmental Sciences, The Ohio State University, Columbus, USA.
| | - Chang-Won Lee
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, USA; Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, USA.
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33
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Wittig JG, Münsterberg A. The Chicken as a Model Organism to Study Heart Development. Cold Spring Harb Perspect Biol 2020; 12:cshperspect.a037218. [PMID: 31767650 DOI: 10.1101/cshperspect.a037218] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Heart development is a complex process and begins with the long-range migration of cardiac progenitor cells during gastrulation. This culminates in the formation of a simple contractile tube with multiple layers, which undergoes remodeling into a four-chambered heart. During this morphogenesis, additional cell populations become incorporated. It is important to unravel the underlying genetic and cellular mechanisms to be able to identify the embryonic origin of diseases, including congenital malformations, which impair cardiac function and may affect life expectancy or quality. Owing to the evolutionary conservation of development, observations made in nonamniote and amniote vertebrate species allow us to extrapolate to human. This review will focus on the contributions made to a better understanding of heart development through studying avian embryos-mainly the chicken but also quail embryos. We will illustrate the classic and recent approaches used in the avian system, give an overview of the important discoveries made, and summarize the early stages of cardiac development up to the establishment of the four-chambered heart.
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Affiliation(s)
- Johannes G Wittig
- School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - Andrea Münsterberg
- School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom
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Lee J, Kim DH, Lee K. Current Approaches and Applications in Avian Genome Editing. Int J Mol Sci 2020; 21:ijms21113937. [PMID: 32486292 PMCID: PMC7312999 DOI: 10.3390/ijms21113937] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 01/02/2023] Open
Abstract
Advances in genome-editing technologies and sequencing of animal genomes enable researchers to generate genome-edited (GE) livestock as valuable animal models that benefit biological researches and biomedical and agricultural industries. As birds are an important species in biology and agriculture, their genome editing has gained significant interest and is mainly performed by using a primordial germ cell (PGC)-mediated method because pronuclear injection is not practical in the avian species. In this method, PGCs can be isolated, cultured, genetically edited in vitro, and injected into a recipient embryo to produce GE offspring. Recently, a couple of GE quail have been generated by using the newly developed adenovirus-mediated method. Without technically required in vitro procedures of the PGC-mediated method, direct injection of adenovirus into the avian blastoderm in the freshly laid eggs resulted in the production of germ-line chimera and GE offspring. As more approaches are available in avian genome editing, avian research in various fields will progress rapidly. In this review, we describe the development of avian genome editing and scientific and industrial applications of GE avian species.
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Affiliation(s)
- Joonbum Lee
- Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA; (J.L.); (D.-H.K.)
- The Ohio State University Interdisciplinary Human Nutrition Program, The Ohio State University, Columbus, OH 43210, USA
| | - Dong-Hwan Kim
- Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA; (J.L.); (D.-H.K.)
| | - Kichoon Lee
- Department of Animal Sciences, The Ohio State University, Columbus, OH 43210, USA; (J.L.); (D.-H.K.)
- The Ohio State University Interdisciplinary Human Nutrition Program, The Ohio State University, Columbus, OH 43210, USA
- Correspondence: ; Tel.: +1-614-688-7963
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Serralbo O, Salgado D, Véron N, Cooper C, Dejardin MJ, Doran T, Gros J, Marcelle C. Transgenesis and web resources in quail. eLife 2020; 9:56312. [PMID: 32459172 PMCID: PMC7286689 DOI: 10.7554/elife.56312] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/26/2020] [Indexed: 12/26/2022] Open
Abstract
Due to its amenability to manipulations, to live observation and its striking similarities to mammals, the chicken embryo has been one of the major animal models in biomedical research. Although it is technically possible to genome-edit the chicken, its long generation time (6 months to sexual maturity) makes it an impractical lab model and has prevented it widespread use in research. The Japanese quail (Coturnix coturnix japonica) is an attractive alternative, very similar to the chicken, but with the decisive asset of a much shorter generation time (1.5 months). In recent years, transgenic quail lines have been described. Most of them were generated using replication-deficient lentiviruses, a technique that presents diverse limitations. Here, we introduce a novel technology to perform transgenesis in quail, based on the in vivo transfection of plasmids in circulating Primordial Germ Cells (PGCs). This technique is simple, efficient and allows using the infinite variety of genome engineering approaches developed in other models. Furthermore, we present a website centralizing quail genomic and technological information to facilitate the design of genome-editing strategies, showcase the past and future transgenic quail lines and foster collaborative work within the avian community.
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Affiliation(s)
- Olivier Serralbo
- Australian Regenerative Medicine Institute (ARMI), Monash University, Clayton, Australia
| | - David Salgado
- Marseille Medical Genetics (GMGF), Aix Marseille University, Marseille, France
| | - Nadège Véron
- Australian Regenerative Medicine Institute (ARMI), Monash University, Clayton, Australia
| | - Caitlin Cooper
- CSIRO Health & Biosecurity, Australian Animal Health Laboratory, Geelong, Australia
| | | | - Timothy Doran
- CSIRO Health & Biosecurity, Australian Animal Health Laboratory, Geelong, Australia
| | - Jérome Gros
- Department of Developmental and Stem Cell Biology, Pasteur Institute, Paris, France
| | - Christophe Marcelle
- Australian Regenerative Medicine Institute (ARMI), Monash University, Clayton, Australia.,Institut NeuroMyoGène (INMG), University Claude Bernard Lyon 1, Lyon, France
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Development of a transposon-based technology for transfection of day 0 chicken embryos. Gene 2020; 730:144318. [DOI: 10.1016/j.gene.2019.144318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/18/2019] [Accepted: 12/20/2019] [Indexed: 12/12/2022]
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Muscle Hyperplasia in Japanese Quail by Single Amino Acid Deletion in MSTN Propeptide. Int J Mol Sci 2020; 21:ijms21041504. [PMID: 32098368 PMCID: PMC7073117 DOI: 10.3390/ijms21041504] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/18/2020] [Accepted: 02/20/2020] [Indexed: 12/07/2022] Open
Abstract
Mutation in myostatin (MSTN), a negative regulator of muscle growth in skeletal muscle, resulted in increased muscle mass in mammals and fishes. However, MSTN mutation in avian species has not been reported. The objective of this study was to generate MSTN mutation in quail and investigate the effect of MSTN mutation in avian muscle growth. Recently, a new targeted gene knockout approach for the avian species has been developed using an adenoviral CRISPR/Cas9 system. By injecting the recombinant adenovirus containing CRISPR/Cas9 into the quail blastoderm, potential germline chimeras were generated and offspring with three base-pair deletion in the targeted region of the MSTN gene was identified. This non-frameshift mutation in MSTN resulted in deletion of cysteine 42 in the MSTN propeptide region and homozygous mutant quail showed significantly increased body weight and muscle mass with muscle hyperplasia compared to heterozygous mutant and wild-type quail. In addition, decreased fat pad weight and increased heart weight were observed in MSTN mutant quail in an age- and sex-dependent manner, respectively. Taken together, these data indicate anti-myogenic function of MSTN in the avian species and the importance of cysteine 42 in regulating MSTN function.
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Lee K, Uh K, Farrell K. Current progress of genome editing in livestock. Theriogenology 2020; 150:229-235. [PMID: 32000993 DOI: 10.1016/j.theriogenology.2020.01.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 01/18/2020] [Indexed: 12/12/2022]
Abstract
Historically, genetic engineering in livestock proved to be challenging. Without stable embryonic stem cell lines to utilize, somatic cell nuclear transfer (SCNT) had to be employed to produce many of the genetically engineered (GE) livestock models. Through the genetic engineering of somatic cells followed by SCNT, GE livestock models could be generated carrying site-specific modifications. Although successful, only a few GE livestock models were generated because of low efficiency and associated birth defects. Recently, there have been major strides in the development of genome editing tools: Zinc-Finger Nucleases (ZFNs), Transcription activator-like effector nucleases (TALENS), and Clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated 9 (Cas9) system. These tools rely on the generation of a double strand DNA break, followed by one of two repair pathways: non-homologous end joining (NHEJ) or homology directed repair (HDR). Compared to the traditional approaches, these tools dramatically reduce time and effort needed to establish a GE animal. Another benefit of utilizing genome editing tools is the application of direct injection into developing embryos to induce targeted mutations, therefore, eliminating side effects associated with SCNT. Emerging technological advancements of genome editing systems have dramatically improved efficiency to generate GE livestock models for both biomedical and agricultural purposes. Although the efficiency of genome editing tools has revolutionized GE livestock production, improvements for safe and consistent application are desired. This review will provide an overview of genome editing techniques, as well as examples of GE livestock models for agricultural and biomedical purposes.
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Affiliation(s)
- Kiho Lee
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, USA.
| | - Kyungjun Uh
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Kayla Farrell
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, USA
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Li C, Lieber A. Adenovirus vectors in hematopoietic stem cell genome editing. FEBS Lett 2019; 593:3623-3648. [PMID: 31705806 PMCID: PMC10473235 DOI: 10.1002/1873-3468.13668] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 10/23/2019] [Accepted: 10/27/2019] [Indexed: 12/13/2022]
Abstract
Genome editing of hematopoietic stem cells (HSCs) represents a therapeutic option for a number of hematological genetic diseases, as HSCs have the potential for self-renewal and differentiation into all blood cell lineages. This review presents advances of genome editing in HSCs utilizing adenovirus vectors as delivery vehicles. We focus on capsid-modified, helper-dependent adenovirus vectors that are devoid of all viral genes and therefore exhibit an improved safety profile. We discuss HSC genome engineering for several inherited disorders and infectious diseases including hemoglobinopathies, Fanconi anemia, hemophilia, and HIV-1 infection by ex vivo and in vivo editing in transgenic mice, nonhuman primates, as well as in human CD34+ cells. Mechanisms of therapeutic gene transfer including episomal expression of designer nucleases and base editors, transposase-mediated random integration, and targeted homology-directed repair triggered integration into selected genomic safe harbor loci are also reviewed.
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Affiliation(s)
- Chang Li
- Department of Medicine, Division of Medical Genetics, University of Washington, Seattle, WA, USA
| | - André Lieber
- Department of Medicine, Division of Medical Genetics, University of Washington, Seattle, WA, USA
- Department of Pathology, University of Washington, Seattle, WA, USA
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