1
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Hu W, Chen G, Yuan W, Guo C, Liu F, Zhang S, Cao Z. Iprodione induces hepatotoxicity in zebrafish by mediating ROS generation and upregulating p53 signalling pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 270:115911. [PMID: 38181604 DOI: 10.1016/j.ecoenv.2023.115911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/11/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024]
Abstract
Iprodione is an effective and broad-spectrum fungicide commonly used for early disease control in fruit trees and vegetables. Due to rainfall, iprodione often finds its way into water bodies, posing toxicity risks to non-target organisms and potentially entering the human food chain. However, there is limited information available regarding the developmental toxicity of iprodione specifically on the liver in existing literature. In this study, we employed larval and adult zebrafish as models to investigate the toxicity of iprodione. Our findings revealed that iprodione exposure led to yolk sac edema and increased mortality in zebrafish. Notably, iprodione exhibited specific effects on zebrafish liver development. Additionally, zebrafish exposed to iprodione experienced an overload of reactive oxygen species, resulting in the upregulation of p53 gene expression. This, in turn, triggered hepatocyte apoptosis and disrupted carbohydrate/lipid metabolism as well as energy demand systems. These results demonstrated the substantial impact of iprodione on zebrafish liver development and function. Furthermore, the application of astaxanthin (an antioxidant) and p53 morpholino partially mitigated the liver toxicity caused by iprodione. To summarize, iprodione induces apoptosis through the upregulation of p53 mediated by oxidative stress signals, leading to liver toxicity in zebrafish. Our study highlights that exposure to iprodione can result in hepatotoxicity in zebrafish, and it may potentially pose toxicity risks to other aquatic organisms and even humans.
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Affiliation(s)
- Weitao Hu
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an 343009, China
| | - Guilan Chen
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an 343009, China
| | - Wenbin Yuan
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an 343009, China
| | - Chen Guo
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an 343009, China
| | - Fasheng Liu
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an 343009, China
| | - Shouhua Zhang
- Department of Ultrasound, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang University, Nanchang, China
| | - Zigang Cao
- Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an 343009, China.
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2
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Xie S, Feng Y, Zhou A, Lu Z, JixingZou. Comparative analysis of two new zebrafish models: The cyp1a low-expression line and cyp1a knockout line under PAHs exposure. Gene 2023; 869:147391. [PMID: 36966979 DOI: 10.1016/j.gene.2023.147391] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/17/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023]
Abstract
Cytochrome P450 1 (CYP1) is an important enzyme family involved in the metabolism of pollutants, and used as a biomarker to monitor environmental pollution. In this study, a fluorescence-labeled cyp1a zebrafish line, named as KI (cyp1a+/+-T2A-mCherry) (KICM), was originally constructed to monitor dioxin-like compounds in the environment. However, the cyp1a gene expression in the KICM line was inhibited by the fluorescence labeling, thus leading to a significantly increased sensitivity of KICM zebrafish line to PAHs. Then, a cyp1a knockout zebrafish line, named KOC, were constructed for comparative analysis with the cyp1a low-expression line. Interestingly, knockout of the cyp1a gene did not increase the sensitivity of zebrafish to PAHs as significantly as the cyp1a low-expression line. So, the expression levels of related genes in the aryl hydrocarbon receptor pathway were analyzed and the results showed that the expression level of cyp1b in KOC group was significantly higher than that of wild type and KICM under the same PAH exposure. This indicated that the effect of losing cyp1a was compensated by inducing expression of cyp1b. In conclusion, two new zebrafish models including cyp1a low-expression line and cyp1a knockout line were constructed in this study, which may provide a convenient model for subsequent studies on the toxicity mechanism of PAHs and the role of cyp1a in detoxification.
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3
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Coogan M, Alston V, Su B, Khalil K, Elaswad A, Khan M, Johnson A, Xing D, Li S, Wang J, Simora RMC, Lu C, Page-McCaw P, Chen W, Michel M, Wang W, Hettiarachchi D, Hasin T, Butts IAE, Cone RD, Dunham RA. Improved Growth and High Inheritance of Melanocortin-4 Receptor (mc4r) Mutation in CRISPR/Cas-9 Gene-Edited Channel Catfish, Ictalurus punctatus. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:843-855. [PMID: 35943638 DOI: 10.1007/s10126-022-10146-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
Effects of CRISPR/Cas9 knockout of the melanocortin-4 receptor (mc4r) gene in channel catfish, Ictalurus punctatus, were investigated. Three sgRNAs targeting the channel catfish mc4r gene in conjunction with Cas9 protein were microinjected in embryos and mutation rate, inheritance, and growth were studied. Efficient mutagenesis was achieved as demonstrated by PCR, Surveyor® assay, and DNA sequencing. An overall mutation rate of 33% and 33% homozygosity/bi-allelism was achieved in 2017. Approximately 71% of progeny inherited the mutation. Growth was generally higher in MC4R mutants than controls (CNTRL) at all life stages and in both pond and tank environments. There was a positive relationship between zygosity and growth, with F1 homozygous/bi-allelic mutants reaching market size 30% faster than F1 heterozygotes in earthen ponds (p = 0.022). At the stocker stage (~ 50 g), MC4R × MC4R mutants generated in 2019 were 40% larger than the mean of combined CNTRL × CNTRL families (p = 0.005) and 54% larger than F1 MC4R × CNTRL mutants (p = 0.001) indicating mutation may be recessive. With a high mutation rate and inheritance of the mutation as well as improved growth, the use of gene-edited MC4R channel catfish appears to be beneficial for application on commercial farms.
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Affiliation(s)
- Michael Coogan
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
| | - Veronica Alston
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Baofeng Su
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Karim Khalil
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Ahmed Elaswad
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Department of Animal Wealth Development, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt
| | - Mohd Khan
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Department of Fisheries Biology and Genetics, Agricultural University, Mymensingh, 2202, Bangladesh
| | - Andrew Johnson
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - De Xing
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Shangjia Li
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Jinhai Wang
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Rhoda M C Simora
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- College of Fisheries and Ocean Sciences, University of the Philippines Visayas, 5023, Miagao, Iloilo, Philippines
| | - Cuiyu Lu
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Patrick Page-McCaw
- Department of Molecular and Integrative Physiology, Vanderbilt University, Nashville, TN, 37203-5721, USA
| | - Wenbiao Chen
- Department of Molecular and Integrative Physiology, Vanderbilt University, Nashville, TN, 37203-5721, USA
| | - Max Michel
- Department of Molecular and Integrative Physiology, Vanderbilt University, Nashville, TN, 37203-5721, USA
| | - Wenwen Wang
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | | | - Tasnuba Hasin
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Ian A E Butts
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Roger D Cone
- Department of Molecular and Integrative Physiology, Vanderbilt University, Nashville, TN, 37203-5721, USA
| | - Rex A Dunham
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
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4
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Xu W, Fu W, Long M, Yuan X, Zhao K, Hu X, Liu J, Liu W, Peng L, Xiao Y. Rapid establishment of Oct4: EGFP transgenic zebrafish homozygote through gynogenesis for monitoring the pluripotency during induction of pluripotent stem cells. REPRODUCTION AND BREEDING 2022. [DOI: 10.1016/j.repbre.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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5
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Kobayashi M, Jamieson-Lucy A, Mullins MC. Microinjection Method for Analyzing Zebrafish Early Stage Oocytes. Front Cell Dev Biol 2021; 9:753642. [PMID: 34820378 PMCID: PMC8607826 DOI: 10.3389/fcell.2021.753642] [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: 08/05/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Maternal factors which accumulate and establish oocyte polarity during the early stages of oogenesis play key roles in embryonic development, as well as germ cell formation. However, vertebrate oogenesis, especially early stages of oogenesis, is not well understood due to the difficulty of accessing these oocytes and the lack of analytical methods. Here, we report on a microinjection method for analyzing zebrafish early-stage oocytes and some artifacts to be aware of when performing oocyte injections or analyzing oocytes. Using this method, we successfully injected mRNAs encoding fluorescent-tagged proteins into early-stage oocytes and observed subcellular localization in the live oocytes. This method is expected to advance the functional analysis of genes involved in oogenesis.
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Affiliation(s)
- Manami Kobayashi
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| | - Allison Jamieson-Lucy
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| | - Mary C Mullins
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
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6
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Progress in Gene-Editing Technology of Zebrafish. Biomolecules 2021; 11:biom11091300. [PMID: 34572513 PMCID: PMC8468279 DOI: 10.3390/biom11091300] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 08/25/2021] [Accepted: 08/30/2021] [Indexed: 12/26/2022] Open
Abstract
As a vertebrate model, zebrafish (Danio rerio) plays a vital role in the field of life sciences. Recently, gene-editing technology has become increasingly innovative, significantly promoting scientific research on zebrafish. However, the implementation of these methods in a reasonable and accurate manner to achieve efficient gene-editing remains challenging. In this review, we systematically summarize the development and latest progress in zebrafish gene-editing technology. Specifically, we outline trends in double-strand break-free genome modification and the prospective applications of fixed-point orientation transformation of any base at any location through a multi-method approach.
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7
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Terzioglu M, Saralahti A, Piippo H, Rämet M, Andressoo JO. Improving CRISPR/Cas9 mutagenesis efficiency by delaying the early development of zebrafish embryos. Sci Rep 2020; 10:21023. [PMID: 33273577 PMCID: PMC7713128 DOI: 10.1038/s41598-020-77677-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 11/13/2020] [Indexed: 11/11/2022] Open
Abstract
CRISPR/Cas9 driven mutagenesis in zygotes is a popular tool for introducing targeted mutations in model organisms. Compared to mouse, mutagenesis in zebrafish is relatively inefficient and results in somatic mosaicism most likely due to a short single-cell stage of about 40 min. Here we explored two options to improve CRISPR/Cas9 mutagenesis in zebrafish—extending the single-cell stage and defining conditions for carrying out mutagenesis in oocytes prior to in vitro fertilization. Previous work has shown that ovarian fluid from North American salmon species (coho and chinook salmon) prolong oocyte survival ex vivo so that they are viable for hours instead of dying within minutes if left untreated. We found that commonly farmed rainbow trout (Oncorhynchus mykiss) ovarian fluid (RTOF) has similar effect on zebrafish oocyte viability. In order to prolong single-cell stage, we incubated zebrafish zygotes in hydrogen sulfide (H2S) and RTOF but failed to see any effect. However, the reduction of temperature from standard 28 to 12 °C postponed the first cell division by about an hour. In addition, the reduction in temperature was associated with increased CRISPR/Cas9 mutagenesis rate. These results suggest that the easily applicable reduction in temperature facilitates CRISPR/Cas9 mutagenesis in zebrafish.
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Affiliation(s)
- M Terzioglu
- Department of Pharmacology, Faculty of Medicine and Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - A Saralahti
- BioMediTech, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - H Piippo
- BioMediTech, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - M Rämet
- BioMediTech, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - J-O Andressoo
- Department of Pharmacology, Faculty of Medicine and Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland. .,Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Solna, Sweden.
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8
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Yilmaz O, Patinote A, Nguyen T, Com E, Pineau C, Bobe J. Genome editing reveals reproductive and developmental dependencies on specific types of vitellogenin in zebrafish (Danio rerio). Mol Reprod Dev 2019; 86:1168-1188. [DOI: 10.1002/mrd.23231] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 06/17/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Ozlem Yilmaz
- INRA, UR1037, Laboratory of Fish Physiology and GenomicsCampus de Beaulieu, French National Institute for Agricultural Research Rennes Cedex France
| | - Amélie Patinote
- INRA, UR1037, Laboratory of Fish Physiology and GenomicsCampus de Beaulieu, French National Institute for Agricultural Research Rennes Cedex France
| | - Thaovi Nguyen
- INRA, UR1037, Laboratory of Fish Physiology and GenomicsCampus de Beaulieu, French National Institute for Agricultural Research Rennes Cedex France
| | - Emmanuelle Com
- Protim, Inserm U1085, IrsetCampus de Beaulieu, Université de Rennes 1, Proteomics Core Facility Rennes Cedex France
| | - Charles Pineau
- Protim, Inserm U1085, IrsetCampus de Beaulieu, Université de Rennes 1, Proteomics Core Facility Rennes Cedex France
| | - Julien Bobe
- INRA, UR1037, Laboratory of Fish Physiology and GenomicsCampus de Beaulieu, French National Institute for Agricultural Research Rennes Cedex France
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9
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Su X, Chen W, Cai Q, Liang P, Chen Y, Cong P, Huang J. Production of non-mosaic genome edited porcine embryos by injection of CRISPR/Cas9 into germinal vesicle oocytes. J Genet Genomics 2019; 46:335-342. [PMID: 31378649 DOI: 10.1016/j.jgg.2019.07.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/16/2019] [Accepted: 07/04/2019] [Indexed: 12/26/2022]
Abstract
Genetically modified pigs represent a great promise for generating models of human diseases and producing new breeds. Generation of genetically edited pigs using somatic cell nuclear transfer (SCNT) or zygote cytoplasmic microinjection is a tedious process due to the low developmental rate or mosaicism of the founder (F0). Herein, we developed a method termed germinal vesicle oocyte gene editing (GVGE) to produce non-mosaic porcine embryos by editing maternal alleles during the GV to MⅡ transition. Injection of Cas9 mRNA and X-linked Dmd gene-specific gRNA into GV oocytes did not affect their developmental potential. The MⅡ oocytes edited during in vitro maturation (IVM) could develop into blastocysts after parthenogenetic activation (PA) or in vitro fertilization (IVF). Genotyping results indicated that the maternal gene X-linked Dmd could be efficiently edited during oocyte maturation. Up to 81.3% of the edited IVF embryos were non-mosaic Dmd gene mutant embryos. In conclusion, GVGE might be a valuable method for the generation of non-mosaic maternal allele edited F0 embryos in a short simple step.
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Affiliation(s)
- Xiaohu Su
- Key Laboratory of Reproductive Medicine of Guangdong Province, First Affiliated Hospital and School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China; MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Wei Chen
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Qingqing Cai
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Puping Liang
- Key Laboratory of Reproductive Medicine of Guangdong Province, First Affiliated Hospital and School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China; MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yaosheng Chen
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Peiqing Cong
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Junjiu Huang
- Key Laboratory of Reproductive Medicine of Guangdong Province, First Affiliated Hospital and School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China; MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China; Key Laboratory of Reproductive Medicine of Guangdong Province, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.
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10
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Zhan C, Liu W, Hegazy AM, Zhang T, Kawan A, Zhang X. Explorations of the optimal method for isolating oocytes from zebrafish (
Danio rerio
) ovary. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2019; 330:417-426. [DOI: 10.1002/jez.b.22841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 11/29/2018] [Accepted: 12/23/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Chunhua Zhan
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond AquacultureWuhan China
| | - Wanjing Liu
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond AquacultureWuhan China
| | - Abeer M. Hegazy
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond AquacultureWuhan China
- Central Laboratory for Environmental Quality Monitoring “CLEQM,” National Water Research Center “NWRC”Cairo Egypt
| | - Tongzhou Zhang
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond AquacultureWuhan China
| | - Atufa Kawan
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond AquacultureWuhan China
| | - Xuezhen Zhang
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond AquacultureWuhan China
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11
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Wu X, Shen W, Zhang B, Meng A. The genetic program of oocytes can be modified in vivo in the zebrafish ovary. J Mol Cell Biol 2018; 10:479-493. [PMID: 30060229 DOI: 10.1093/jmcb/mjy044] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 07/28/2018] [Indexed: 12/23/2022] Open
Abstract
Oocytes, the irreplaceable gametes for generating a new organism, are matured in the ovary of living female animals. It is unknown whether any genetic manipulations can be applied to immature oocytes inside the living ovaries. As a proof-of-concept, we here demonstrate genetic amendments of zebrafish immature oocytes within the ovary. Oocyte microinjection in situ (OMIS) stimulates tissue repair responses, but some of the microinjected immature oocytes are matured, ovulated and fertilizable. By OMIS-mediated Cas9 approach, ntla and gata5 loci of oocytes arrested at prophase I of meiosis are successfully edited before fertilization. Through OMIS, high efficiency of biallelic mutations in single or multiple loci using Cas9/gRNAs allows immediate manifestation of mutant phenotypes in F0 embryos and multiple transgenes can co-express the reporters in F0 embryos with patterns similar to germline transgenic embryos. Furthermore, maternal knockdown of dnmt1 by antisense morpholino via OMIS results in a dramatic decrease of global DNA methylation level at the dome stage and causes embryonic lethality prior to segmentation period. Therefore, OMIS opens a door to efficiently modify the genome and provides a possibility to repair genetically abnormal oocytes in situ.
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Affiliation(s)
- Xiaotong Wu
- Laboratory of Molecular Developmental Biology, State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - Weimin Shen
- Laboratory of Molecular Developmental Biology, State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - Bingjie Zhang
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics; Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - Anming Meng
- Laboratory of Molecular Developmental Biology, State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
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12
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Boel A, De Saffel H, Steyaert W, Callewaert B, De Paepe A, Coucke PJ, Willaert A. CRISPR/Cas9-mediated homology-directed repair by ssODNs in zebrafish induces complex mutational patterns resulting from genomic integration of repair-template fragments. Dis Model Mech 2018; 11:11/10/dmm035352. [PMID: 30355591 PMCID: PMC6215429 DOI: 10.1242/dmm.035352] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 08/31/2018] [Indexed: 12/30/2022] Open
Abstract
Targeted genome editing by CRISPR/Cas9 is extremely well fitted to generate gene disruptions, although precise sequence replacement by CRISPR/Cas9-mediated homology-directed repair (HDR) suffers from low efficiency, impeding its use for high-throughput knock-in disease modeling. In this study, we used next-generation sequencing (NGS) analysis to determine the efficiency and reliability of CRISPR/Cas9-mediated HDR using several types of single-stranded oligodeoxynucleotide (ssODN) repair templates for the introduction of disease-relevant point mutations in the zebrafish genome. Our results suggest that HDR rates are strongly determined by repair-template composition, with the most influential factor being homology-arm length. However, we found that repair using ssODNs does not only lead to precise sequence replacement but also induces integration of repair-template fragments at the Cas9 cut site. We observed that error-free repair occurs at a relatively constant rate of 1-4% when using different repair templates, which was sufficient for transmission of point mutations to the F1 generation. On the other hand, erroneous repair mainly accounts for the variability in repair rate between the different repair templates. To further improve error-free HDR rates, elucidating the mechanism behind this erroneous repair is essential. We show that the error-prone nature of ssODN-mediated repair, believed to act via synthesis-dependent strand annealing (SDSA), is most likely due to DNA synthesis errors. In conclusion, caution is warranted when using ssODNs for the generation of knock-in models or for therapeutic applications. We recommend the application of in-depth NGS analysis to examine both the efficiency and error-free nature of HDR events. This article has an associated First Person interview with the first author of the paper. Summary: NGS-based analysis reveals that CRISPR/Cas9-induced double-strand-break repair using single-stranded repair templates is error prone in zebrafish, resulting in complex patterns of integrated repair-template fragments.
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Affiliation(s)
- Annekatrien Boel
- Center for Medical Genetics, Department of Biomolecular Medicine, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Hanna De Saffel
- Center for Medical Genetics, Department of Biomolecular Medicine, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Wouter Steyaert
- Center for Medical Genetics, Department of Biomolecular Medicine, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Bert Callewaert
- Center for Medical Genetics, Department of Biomolecular Medicine, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Anne De Paepe
- Center for Medical Genetics, Department of Biomolecular Medicine, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Paul J Coucke
- Center for Medical Genetics, Department of Biomolecular Medicine, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Andy Willaert
- Center for Medical Genetics, Department of Biomolecular Medicine, Ghent University, Corneel Heymanslaan 10, 9000 Ghent, Belgium
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13
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Sorlien EL, Witucki MA, Ogas J. Efficient Production and Identification of CRISPR/Cas9-generated Gene Knockouts in the Model System Danio rerio. J Vis Exp 2018. [PMID: 30222157 PMCID: PMC6231919 DOI: 10.3791/56969] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Characterization of the clustered, regularly interspaced, short, palindromic repeat (CRISPR) system of Streptococcus pyogenes has enabled the development of a customizable platform to rapidly generate gene modifications in a wide variety of organisms, including zebrafish. CRISPR-based genome editing uses a single guide RNA (sgRNA) to target a CRISPR-associated (Cas) endonuclease to a genomic DNA (gDNA) target of interest, where the Cas endonuclease generates a double-strand break (DSB). Repair of DSBs by error-prone mechanisms lead to insertions and/or deletions (indels). This can cause frameshift mutations that often introduce a premature stop codon within the coding sequence, thus creating a protein-null allele. CRISPR-based genome engineering requires only a few molecular components and is easily introduced into zebrafish embryos by microinjection. This protocol describes the methods used to generate CRISPR reagents for zebrafish microinjection and to identify fish exhibiting germline transmission of CRISPR-modified genes. These methods include in vitro transcription of sgRNAs, microinjection of CRISPR reagents, identification of indels induced at the target site using a PCR-based method called a heteroduplex mobility assay (HMA), and characterization of the indels using both a low throughput and a powerful next-generation sequencing (NGS)-based approach that can analyze multiple PCR products collected from heterozygous fish. This protocol is streamlined to minimize both the number of fish required and the types of equipment needed to perform the analyses. Furthermore, this protocol is designed to be amenable for use by laboratory personal of all levels of experience including undergraduates, enabling this powerful tool to be economically employed by any research group interested in performing CRISPR-based genomic modification in zebrafish.
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Affiliation(s)
| | | | - Joseph Ogas
- Department of Biochemistry, Purdue University;
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14
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Zheng SS, Han RY, Xiang L, Zhuang YY, Jin ZB. Versatile Genome Engineering Techniques Advance Human Ocular Disease Researches in Zebrafish. Front Cell Dev Biol 2018; 6:75. [PMID: 30050903 PMCID: PMC6052052 DOI: 10.3389/fcell.2018.00075] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/25/2018] [Indexed: 12/18/2022] Open
Abstract
Over recent decades, zebrafish has been established as a sophisticated vertebrate model for studying human ocular diseases due to its high fecundity, short generation time and genetic tractability. With the invention of morpholino (MO) technology, it became possible to study the genetic basis and relevant genes of ocular diseases in vivo. Many genes have been shown to be related to ocular diseases. However, the issue of specificity is the major concern in defining gene functions with MO technology. The emergence of the first- and second-generation genetic modification tools zinc-finger nucleases (ZFNs) and TAL effector nucleases (TALENs), respectively, eliminated the potential phenotypic risk induced by MOs. Nevertheless, the efficiency of these nucleases remained relatively low until the third technique, the clustered regularly interspersed short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) system, was discovered. This review highlights the application of multiple genome engineering techniques, especially the CRISPR/Cas9 system, in the study of human ocular diseases in zebrafish.
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Affiliation(s)
- Si-Si Zheng
- Division of Ophthalmic Genetics, Laboratory for Stem Cell and Retinal Regeneration, Institute of Stem Cell Research, The Eye Hospital, Wenzhou Medical University, Wenzhou, China
- National International Joint Research Center for Regenerative Medicine and Neurogenetics, Wenzhou Medical University, Wenzhou, China
| | - Ru-Yi Han
- Division of Ophthalmic Genetics, Laboratory for Stem Cell and Retinal Regeneration, Institute of Stem Cell Research, The Eye Hospital, Wenzhou Medical University, Wenzhou, China
- National International Joint Research Center for Regenerative Medicine and Neurogenetics, Wenzhou Medical University, Wenzhou, China
| | - Lue Xiang
- Division of Ophthalmic Genetics, Laboratory for Stem Cell and Retinal Regeneration, Institute of Stem Cell Research, The Eye Hospital, Wenzhou Medical University, Wenzhou, China
- National International Joint Research Center for Regenerative Medicine and Neurogenetics, Wenzhou Medical University, Wenzhou, China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, China
| | - You-Yuan Zhuang
- Division of Ophthalmic Genetics, Laboratory for Stem Cell and Retinal Regeneration, Institute of Stem Cell Research, The Eye Hospital, Wenzhou Medical University, Wenzhou, China
- National International Joint Research Center for Regenerative Medicine and Neurogenetics, Wenzhou Medical University, Wenzhou, China
| | - Zi-Bing Jin
- Division of Ophthalmic Genetics, Laboratory for Stem Cell and Retinal Regeneration, Institute of Stem Cell Research, The Eye Hospital, Wenzhou Medical University, Wenzhou, China
- National International Joint Research Center for Regenerative Medicine and Neurogenetics, Wenzhou Medical University, Wenzhou, China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, China
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15
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Wang C, Chen YL, Bian WP, Xie SL, Qi GL, Liu L, Strauss PR, Zou JX, Pei DS. Deletion of mstna and mstnb impairs the immune system and affects growth performance in zebrafish. FISH & SHELLFISH IMMUNOLOGY 2018; 72:572-580. [PMID: 29175471 DOI: 10.1016/j.fsi.2017.11.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 11/13/2017] [Accepted: 11/22/2017] [Indexed: 06/07/2023]
Abstract
Myostatin (Mstn) is a negative regulator of muscle development in vertebrates. Although its function in muscle growth has been well studied in mammals and fish, it remains unclear whether or how mstn functions in the immune system. In this study, mstna-/- and mstnb-/- homozygous zebrafish were firstly generated using CRISPR/Cas9 (Clustered regularly interspaced short palindromic repeats/CRISPR associated protein 9). Deletion of mstnb but not mstna enhanced growth performance. Although survival rates under normal conditions were slightly decreased in both strains, mortality after dexamethasone-induced stress was increased by ∼30%. Furthermore, transcriptional levels of several critical immune-related genes were decreased, and the ability to withstand exposure to pathogenic E. tarda was decreased, compared with that of controls. In mstnb-/- but not mstna-/- zebrafish, expression of NF-κB subunits and several pro-inflammatory cytokines failed to respond to E. tarda exposure except nfkb1, c-rel and tnfα. Taken together, these results indicate that mstnb but not mstna plays a key role in zebrafish muscle growth. While each paralogue contributes to the response to bacterial insult, mstnb affects the immune system through activation of the NF-κB pathway, and mstna is likely to act upstream of NF-κB at some as yet unidentified target.
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Affiliation(s)
- Chao Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Yan-Ling Chen
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Wan-Ping Bian
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Shao-Lin Xie
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Ge-Le Qi
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Li Liu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Phyllis R Strauss
- Department of Biology, College of Science, Northeastern University, Boston, MA, 02115, USA
| | - Ji-Xing Zou
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
| | - De-Sheng Pei
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
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16
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He ZY, Men K, Qin Z, Yang Y, Xu T, Wei YQ. Non-viral and viral delivery systems for CRISPR-Cas9 technology in the biomedical field. SCIENCE CHINA. LIFE SCIENCES 2017; 60:458-467. [PMID: 28527117 DOI: 10.1007/s11427-017-9033-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/16/2017] [Indexed: 02/08/2023]
Abstract
The clustered regularly interspaced short palindromic repeats (CRISPR)-associated protein 9 (CRISPR-Cas9) system provides a novel genome editing technology that can precisely target a genomic site to disrupt or repair a specific gene. Some CRISPR-Cas9 systems from different bacteria or artificial variants have been discovered or constructed by biologists, and Cas9 nucleases and single guide RNAs (sgRNA) are the major components of the CRISPR-Cas9 system. These Cas9 systems have been extensively applied for identifying therapeutic targets, identifying gene functions, generating animal models, and developing gene therapies. Moreover, CRISPR-Cas9 systems have been used to partially or completely alleviate disease symptoms by mutating or correcting related genes. However, the efficient transfer of CRISPR-Cas9 system into cells and target organs remains a challenge that affects the robust and precise genome editing activity. The current review focuses on delivery systems for Cas9 mRNA, Cas9 protein, or vectors encoding the Cas9 gene and corresponding sgRNA. Non-viral delivery of Cas9 appears to help Cas9 maintain its on-target effect and reduce off-target effects, and viral vectors for sgRNA and donor template can improve the efficacy of genome editing and homology-directed repair. Safe, efficient, and producible delivery systems will promote the application of CRISPR-Cas9 technology in human gene therapy.
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Affiliation(s)
- Zhi-Yao He
- Department of Pharmacy, and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Ke Men
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Zhou Qin
- Department of Pharmacy, and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Yang Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Ting Xu
- Department of Pharmacy, and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China.
| | - Yu-Quan Wei
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
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17
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Zhang JH, Niu A, Li J, Fu JW, Xu Q, Pei DS. In vivo characterization of hair and skin derived carbon quantum dots with high quantum yield as long-term bioprobes in zebrafish. Sci Rep 2016; 6:37860. [PMID: 27886267 PMCID: PMC5122948 DOI: 10.1038/srep37860] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 11/02/2016] [Indexed: 01/02/2023] Open
Abstract
Carbon quantum dots (CDs) were widely investigated because of their tunable fluorescence properties and low toxicity. However, so far there have been no reports on in vivo functional studies of hair and skin derived CDs. Here, hair derived CDs (HCDs) and skin derived CDs (SCDs) were produced by using human hair and pig skin as precursors. The quantum yields (QYs) of HCDs and SCDs were quite high, compared to citric acid derived CDs (CCDs). HCDs and SCDs possess optimal photostability, hypotoxicity and biocompatibility in zebrafish, indicating that HCDs and SCDs possess the capacity of being used as fluorescence probes for in vivo biological imaging. The long-time observation for fluorescence alternation of CDs in zebrafish and the quenching assay of CDs by ATP, NADH and Fe3+ ions demonstrated that the decaying process of CDs in vivo might be induced by the synergistic effect of the metabolism process. All results indicated that large batches and high QYs of CDs can be acquired by employing natural and nontoxic hair and skin as precursors. To our knowledge, this is the first time to report SCDs, in vivo comparative studies of HCDs, SCDs and CCDs as bioprobes, and explore their mechanism of photostability in zebrafish.
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Affiliation(s)
- Jing-Hui Zhang
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Aping Niu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Jing Li
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, China
| | - Jian-Wei Fu
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, China
| | - Qun Xu
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, China
| | - De-Sheng Pei
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
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