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Hua WK, Hsu JC, Chen YC, Chang PS, Wen KLK, Wang PN, Yang WC, Shen CN, Yu YS, Chen YC, Cheng IC, Wu SCY. Quantum pBac: An effective, high-capacity piggyBac-based gene integration vector system for unlocking gene therapy potential. FASEB J 2023; 37:e23108. [PMID: 37534940 DOI: 10.1096/fj.202201654r] [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: 10/13/2022] [Revised: 06/02/2023] [Accepted: 07/12/2023] [Indexed: 08/04/2023]
Abstract
Recent advances in gene therapy have brought novel treatment options for cancer. However, the full potential of this approach has yet to be unlocked due to the limited payload capacity of commonly utilized viral vectors. Virus-free DNA transposons, including piggyBac, have the potential to obviate these shortcomings. In this study, we improved a previously modified piggyBac system with superior transposition efficiency. We demonstrated that the internal domain sequences (IDS) within the 3' terminal repeat domain of hyperactive piggyBac (hyPB) donor vector contain dominant enhancer elements. Plasmid-free donor vector devoid of IDS was used in conjunction with a helper plasmid expressing Quantum PBase™ v2 to generate an optimal piggyBac system, Quantum pBac™ (qPB), for use in T cells. qPB outperformed hyPB in CD20/CD19 CAR-T production in terms of performance as well as yield of the CAR-T cells produced. Furthermore, qPB also produced CAR-T cells with lower donor-associated variabilities compared to lentiviral vector. Importantly, qPB yielded mainly CD8+ CAR-TSCM cells, and the qPB-produced CAR-T cells effectively eliminated CD20/CD19-expressing tumor cells both in vitro and in vivo. Our findings confirm qPB as a promising virus-free vector system with an enhanced payload capacity to incorporate multiple genes. This highly efficient and potentially safe system will be expected to further advance gene therapy applications.
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Affiliation(s)
- Wei-Kai Hua
- GenomeFrontier Therapeutics, Inc, New Taipei City, Taiwan ROC
| | - Jeff C Hsu
- GenomeFrontier Therapeutics, Inc, New Taipei City, Taiwan ROC
| | - Yi-Chun Chen
- GenomeFrontier Therapeutics, Inc, New Taipei City, Taiwan ROC
| | - Peter S Chang
- GenomeFrontier Therapeutics, Inc, New Taipei City, Taiwan ROC
| | | | - Po-Nan Wang
- Division of Hematology, Chang Gung Medical Foundation, Taipei City, Taiwan ROC
| | - Wei-Cheng Yang
- Biomedical Translation Research Center, Academia Sinica, Taipei City, Taiwan ROC
| | - Chia-Ning Shen
- Biomedical Translation Research Center, Academia Sinica, Taipei City, Taiwan ROC
- Genomics Research Center, Academia Sinica, Taipei City, Taiwan ROC
| | - Yi-Shan Yu
- GenomeFrontier Therapeutics, Inc, New Taipei City, Taiwan ROC
| | - Ying-Chun Chen
- GenomeFrontier Therapeutics, Inc, New Taipei City, Taiwan ROC
| | - I-Cheng Cheng
- GenomeFrontier Therapeutics, Inc, New Taipei City, Taiwan ROC
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2
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Li X, Guan Z, Wang F, Wang Y, Asare E, Shi S, Lin Z, Ji T, Gao B, Song C. Evolution of piggyBac Transposons in Apoidea. INSECTS 2023; 14:402. [PMID: 37103217 PMCID: PMC10140906 DOI: 10.3390/insects14040402] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 04/15/2023] [Accepted: 04/19/2023] [Indexed: 06/19/2023]
Abstract
In this study, we investigated the presence of piggyBac (PB) transposons in 44 bee genomes from the Apoidea order, which is a superfamily within the Hymenoptera, which includes a large number of bee species crucial for pollination. We annotated the PB transposons in these 44 bee genomes and examined their evolution profiles, including structural characteristics, distribution, diversity, activity, and abundance. The mined PB transposons were divided into three clades, with uneven distribution in each genus of PB transposons in Apoidea. The complete PB transposons we discovered are around 2.23-3.52 kb in length and encode transposases of approximately 580 aa, with terminal inverted repeats (TIRs) of about 14 bp and 4 bp (TTAA) target-site duplications. Long TIRs (200 bp, 201 bp, and 493 bp) were also detected in some species of bees. The DDD domains of the three transposon types were more conserved, while the other protein domains were less conserved. Generally, most PB transposons showed low abundance in the genomes of Apoidea. Divergent evolution dynamics of PB were observed in the genomes of Apoidea. PB transposons in some identified species were relatively young, whiles others were older and with some either active or inactive. In addition, multiple invasions of PB were also detected in some genomes of Apoidea. Our findings highlight the contribution of PB transposons to genomic variation in these species and suggest their potential as candidates for future gene transfer tools.
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Lyu J, Su Q, Liu J, Chen L, Sun J, Zhang W. Functional characterization of piggyBac-like elements from Nilaparvata lugens (Stål) (Hemiptera: Delphacidae). J Zhejiang Univ Sci B 2022; 23:515-527. [PMID: 35686529 DOI: 10.1631/jzus.b2101090] [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: 11/11/2022]
Abstract
PiggyBac is a transposable DNA element originally discovered in the cabbage looper moth (Trichoplusia ni). The T. ni piggyBac transposon can introduce exogenous fragments into a genome, constructing a transgenic organism. Nevertheless, the comprehensive analysis of endogenous piggyBac-like elements (PLEs) is important before using piggyBac, because they may influence the genetic stability of transgenic lines. Herein, we conducted a genome-wide analysis of PLEs in the brown planthopper (BPH) Nilaparvata lugens (Stål) (Hemiptera: Delphacidae), and identified a total of 28 PLE sequences. All N. lugens piggyBac-like elements (NlPLEs) were present as multiple copies in the genome of BPH. Among the identified NlPLEs, NlPLE25 had the highest copy number and it was distributed on five chromosomes. The full length of NlPLE25 consisted of terminal inverted repeats and sub-terminal inverted repeats at both terminals, as well as a single open reading frame transposase encoding 546 amino acids. Furthermore, NlPLE25 transposase caused precise excision and transposition in cultured insect cells and also restored the original TTAA target sequence after excision. A cross-recognition between the NlPLE25 transposon and the piggyBac transposon was also revealed in this study. These findings provide useful information for the construction of transgenic insect lines.
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Affiliation(s)
- Jun Lyu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Qin Su
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Jinhui Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Lin Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Jiawei Sun
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Wenqing Zhang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
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4
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Helou L, Beauclair L, Dardente H, Piégu B, Tsakou-Ngouafo L, Lecomte T, Kentsis A, Pontarotti P, Bigot Y. The piggyBac-derived protein 5 (PGBD5) transposes both the closely and the distantly related piggyBac-like elements Tcr-pble and Ifp2. J Mol Biol 2021; 433:166839. [PMID: 33539889 PMCID: PMC8404143 DOI: 10.1016/j.jmb.2021.166839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 12/21/2020] [Accepted: 01/14/2021] [Indexed: 12/16/2022]
Abstract
The vertebrate piggyBac derived transposase 5 (PGBD5) encodes a domesticated transposase, which is active and able to transpose its distantly related piggyBac-like element (pble), Ifp2. This raised the question whether PGBD5 would be more effective at mobilizing a phylogenetically closely related pble element. We aimed to identify the pble most closely related to the pgbd5 gene. We updated the landscape of vertebrate pgbd genes to develop efficient filters and identify the most closely related pble to each of these genes. We found that Tcr-pble is phylogenetically the closest pble to the pgbd5 gene. Furthermore, we evaluated the capacity of two murine and human PGBD5 isoforms, Mm523 and Hs524, to transpose both Tcr-pble and Ifp2 elements. We found that both pbles could be transposed by Mm523 with similar efficiency. However, integrations of both pbles occurred through both proper transposition and improper PGBD5-dependent recombination. This suggested that the ability of PGBD5 to bind both pbles may not be based on the primary sequence of element ends, but may involve recognition of inner DNA motifs, possibly related to palindromic repeats. In agreement with this hypothesis, we identified internal palindromic repeats near the end of 24 pble sequences, which display distinct sequences.
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Affiliation(s)
- Laura Helou
- UMR INRAE 0085, CNRS 7247, Physiologie de la Reproduction et des Comportements, Centre INRA Val de Loire, 37380 Nouzilly, France
| | - Linda Beauclair
- UMR INRAE 0085, CNRS 7247, Physiologie de la Reproduction et des Comportements, Centre INRA Val de Loire, 37380 Nouzilly, France
| | - Hugues Dardente
- UMR INRAE 0085, CNRS 7247, Physiologie de la Reproduction et des Comportements, Centre INRA Val de Loire, 37380 Nouzilly, France
| | - Benoît Piégu
- UMR INRAE 0085, CNRS 7247, Physiologie de la Reproduction et des Comportements, Centre INRA Val de Loire, 37380 Nouzilly, France
| | - Louis Tsakou-Ngouafo
- UMR MEPHI D-258, I, IRD, Aix Marseille Université, 19-21 Boulevard Jean Moulin, 13005 Marseille, France; CNRS SNC 5039, 13005 Marseille, France
| | | | - Alex Kentsis
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Weill Cornell Medical College, Cornell University, New York, NY, USA; Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Pierre Pontarotti
- UMR INRAE 0085, CNRS 7247, Physiologie de la Reproduction et des Comportements, Centre INRA Val de Loire, 37380 Nouzilly, France; CNRS SNC 5039, 13005 Marseille, France
| | - Yves Bigot
- UMR INRAE 0085, CNRS 7247, Physiologie de la Reproduction et des Comportements, Centre INRA Val de Loire, 37380 Nouzilly, France.
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Helou L, Beauclair L, Dardente H, Arensburger P, Buisine N, Jaszczyszyn Y, Guillou F, Lecomte T, Kentsis A, Bigot Y. The C-terminal Domain of piggyBac Transposase Is Not Required for DNA Transposition. J Mol Biol 2021; 433:166805. [PMID: 33450253 DOI: 10.1016/j.jmb.2020.166805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 12/29/2020] [Indexed: 12/21/2022]
Abstract
PiggyBac(PB)-like elements (pble) are members of a eukaryotic DNA transposon family. This family is of interest to evolutionary genomics because pble transposases have been domesticated at least 9 times in vertebrates. The amino acid sequence of pble transposases can be split into three regions: an acidic N-terminal domain (~100 aa), a central domain (~400 aa) containing a DD[D/E] catalytic triad, and a cysteine-rich domain (CRD; ~90 aa). Two recent reports suggested that a functional CRD is required for pble transposase activity. Here we found that two CRD-deficient pble transposases, a PB variant and an isoform encoded by the domesticated PB-derived vertebrate transposase gene 5 (pgbd5) trigger transposition of the Ifp2 pble. When overexpressed in HeLa cells, these CRD-deficient transposases can insert Ifp2 elements with proper and improper transposon ends, associated with deleterious effects on cells. Finally, we found that mouse CRD-deficient transposase Pgbd5, as well as PB, do not insert pbles at random into chromosomes. Transposition events occurred more often in genic regions, in the neighbourhood of the transcription start sites and were often found in genes predominantly expressed in the human central nervous system.
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Affiliation(s)
- Laura Helou
- PRC, UMR INRAE 0085, CNRS 7247, Centre INRAE Val de Loire, 37380 Nouzilly, France
| | - Linda Beauclair
- PRC, UMR INRAE 0085, CNRS 7247, Centre INRAE Val de Loire, 37380 Nouzilly, France
| | - Hugues Dardente
- PRC, UMR INRAE 0085, CNRS 7247, Centre INRAE Val de Loire, 37380 Nouzilly, France
| | - Peter Arensburger
- Biological Sciences Department, California State Polytechnic University, Pomona, CA 91768, USA
| | - Nicolas Buisine
- UMR CNRS 7221, Muséum National d'Histoire Naturelle, 75005 Paris, France
| | - Yan Jaszczyszyn
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif-sur-Yvette, France
| | - Florian Guillou
- PRC, UMR INRAE 0085, CNRS 7247, Centre INRAE Val de Loire, 37380 Nouzilly, France
| | | | - Alex Kentsis
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Weill Cornell Medical College, Cornell University, New York, NY, USA; Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yves Bigot
- PRC, UMR INRAE 0085, CNRS 7247, Centre INRAE Val de Loire, 37380 Nouzilly, France.
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6
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Chen J, Wu C, Zhang B, Cai Z, Wei L, Li Z, Li G, Guo T, Li Y, Guo W, Wang X. PiggyBac Transposon-Mediated Transgenesis in the Pacific Oyster ( Crassostrea gigas) - First Time in Mollusks. Front Physiol 2018; 9:811. [PMID: 30061837 PMCID: PMC6054966 DOI: 10.3389/fphys.2018.00811] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/08/2018] [Indexed: 11/25/2022] Open
Abstract
As an effective method of transgenesis, the plasmid of PiggyBac transposon containing GFP (PiggyBac) transposon system has been widely used in various organisms but not yet in mollusks. In this work, piggyBac containing green fluorescent protein (GFP) was transferred into the Pacific oyster (Crassostrea gigas) by sperm-mediated gene transfer with or without electroporation. Fluorescent larvae were then observed and isolated under an inverted fluorescence microscope, and insertion of piggyBac was tested by polymerase chain reaction (PCR) using genomic DNA as template. Oyster larvae with green fluorescence were observed after transgenesis with or without electroporation, but electroporation increased the efficiency of sperm-mediated transgenesis. Subsequently, the recombinant piggyBac plasmid containing gGH (piggyBac-gGH) containing GFP and a growth hormone gene from orange-spotted grouper (gGH) was transferred into oysters using sperm mediation with electroporation, and fluorescent larvae were observed and isolated. The insertion of piggyBac-gGH was tested by PCR and genome walking analysis. PCR analysis indicated that piggyBac-gGH was transferred into oyster larvae; genome walking analysis further showed the detailed location where piggyBac-gGH was inserted in the oyster genome. This is the first time that piggyBac transposon-mediated transgenesis has been applied in mollusks.
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Affiliation(s)
- Jun Chen
- School of Agriculture, Ludong University, Yantai, China
| | - Changlu Wu
- School of Agriculture, Ludong University, Yantai, China
| | - Baolu Zhang
- Consultation Center, State Oceanic Administration, Beijing, China
| | - Zhongqiang Cai
- Changdao Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Yantai, China
| | - Lei Wei
- School of Agriculture, Ludong University, Yantai, China
| | - Zhuang Li
- School of Agriculture, Ludong University, Yantai, China
| | - Guangbin Li
- School of Agriculture, Ludong University, Yantai, China
| | - Ting Guo
- School of Agriculture, Ludong University, Yantai, China
| | - Yongchuan Li
- School of Agriculture, Ludong University, Yantai, China
| | - Wen Guo
- Center for Mollusc Study and Development, Marine Biology Institute of Shandong Province, Qingdao, China
| | - Xiaotong Wang
- School of Agriculture, Ludong University, Yantai, China
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7
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Laptev IA, Raevskaya NM, Filimonova NA, Sineoky SP. The piggyBac Transposon as a Tool in Genetic Engineering. APPL BIOCHEM MICRO+ 2018. [DOI: 10.1134/s000368381709006x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Feng L, Wang G, Hamilton EP, Xiong J, Yan G, Chen K, Chen X, Dui W, Plemens A, Khadr L, Dhanekula A, Juma M, Dang HQ, Kapler GM, Orias E, Miao W, Liu Y. A germline-limited piggyBac transposase gene is required for precise excision in Tetrahymena genome rearrangement. Nucleic Acids Res 2017; 45:9481-9502. [PMID: 28934495 PMCID: PMC5766162 DOI: 10.1093/nar/gkx652] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 07/15/2017] [Indexed: 12/20/2022] Open
Abstract
Developmentally programmed genome rearrangement accompanies differentiation of the silent germline micronucleus into the transcriptionally active somatic macronucleus in the ciliated protozoan Tetrahymena thermophila. Internal eliminated sequences (IES) are excised, followed by rejoining of MAC-destined sequences, while fragmentation occurs at conserved chromosome breakage sequences, generating macronuclear chromosomes. Some macronuclear chromosomes, referred to as non-maintained chromosomes (NMC), are lost soon after differentiation. Large NMC contain genes implicated in development-specific roles. One such gene encodes the domesticated piggyBac transposase TPB6, required for heterochromatin-dependent precise excision of IES residing within exons of functionally important genes. These conserved exonic IES determine alternative transcription products in the developing macronucleus; some even contain free-standing genes. Examples of precise loss of some exonic IES in the micronucleus and retention of others in the macronucleus of related species suggest an evolutionary analogy to introns. Our results reveal that germline-limited sequences can encode genes with specific expression patterns and development-related functions, which may be a recurring theme in eukaryotic organisms experiencing programmed genome rearrangement during germline to soma differentiation.
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Affiliation(s)
- Lifang Feng
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA.,Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.,School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Guangying Wang
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Eileen P Hamilton
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - Jie Xiong
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Guanxiong Yan
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Kai Chen
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Xiao Chen
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Wen Dui
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Amber Plemens
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Lara Khadr
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Arjune Dhanekula
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Mina Juma
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Hung Quang Dang
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, TX 77843, USA
| | - Geoffrey M Kapler
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, TX 77843, USA
| | - Eduardo Orias
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - Wei Miao
- Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Yifan Liu
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
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Bouallègue M, Rouault JD, Hua-Van A, Makni M, Capy P. Molecular Evolution of piggyBac Superfamily: From Selfishness to Domestication. Genome Biol Evol 2017; 9:323-339. [PMID: 28082605 PMCID: PMC5381638 DOI: 10.1093/gbe/evw292] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2016] [Indexed: 12/19/2022] Open
Abstract
The piggyBac transposable element was originally isolated from the cabbage looper moth, Trichoplusia ni, in the 1980s. Despite its early discovery and specificity compared to the other Class II elements, the diversity and evolution of this superfamily have been only partially analyzed. Two main types of elements can be distinguished: the piggyBac-like elements (PBLE) with terminal inverted repeats, untranslated region, and an open reading frame encoding a transposase, and the piggyBac-derived sequences (PGBD), containing a sequence derived from a piggyBac transposase, and which correspond to domesticated elements. To define the distribution, their structural diversity and phylogenetic relationships, analyses were conducted using known PBLE and PGBD sequences to scan databases. From this data mining, numerous new sequences were characterized (50 for PBLE and 396 for PGBD). Structural analyses suggest that four groups of PBLE can be defined according to the presence/absence of sub-terminal repeats. The transposase is characterized by highly variable catalytic domain and C-terminal region. There is no relationship between the structural groups and the phylogeny of these PBLE elements. The PGBD are clearly structured into nine main groups. A new group of domesticated elements is suspected in Neopterygii and the remaining eight previously described elements have been investigated in more detail. In all cases, these sequences are no longer transposable elements, the catalytic domain of the ancestral transposase is not always conserved, but they are under strong purifying selection. The phylogeny of both PBLE and PGBD suggests multiple and independent domestication events of PGBD from different PBLE ancestors.
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Affiliation(s)
- Maryem Bouallègue
- Laboratoire Evolution, Génomes, Comportement, Ecologie CNRS, Univ. Paris-Sud, IRD, Université Paris-Saclay, Gif-sur-Yvette, France
- Université de Tunis El Manar, Faculté des Sciences de Tunis, UR11ES10 Génomique des Insectes Ravageurs de Cultures, Tunis, Tunisie
| | - Jacques-Deric Rouault
- Laboratoire Evolution, Génomes, Comportement, Ecologie CNRS, Univ. Paris-Sud, IRD, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Aurélie Hua-Van
- Laboratoire Evolution, Génomes, Comportement, Ecologie CNRS, Univ. Paris-Sud, IRD, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Mohamed Makni
- Université de Tunis El Manar, Faculté des Sciences de Tunis, UR11ES10 Génomique des Insectes Ravageurs de Cultures, Tunis, Tunisie
| | - Pierre Capy
- Laboratoire Evolution, Génomes, Comportement, Ecologie CNRS, Univ. Paris-Sud, IRD, Université Paris-Saclay, Gif-sur-Yvette, France
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Henssen AG, Henaff E, Jiang E, Eisenberg AR, Carson JR, Villasante CM, Ray M, Still E, Burns M, Gandara J, Feschotte C, Mason CE, Kentsis A. Genomic DNA transposition induced by human PGBD5. eLife 2015; 4. [PMID: 26406119 PMCID: PMC4625184 DOI: 10.7554/elife.10565] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 09/23/2015] [Indexed: 11/13/2022] Open
Abstract
Transposons are mobile genetic elements that are found in nearly all organisms, including humans. Mobilization of DNA transposons by transposase enzymes can cause genomic rearrangements, but our knowledge of human genes derived from transposases is limited. In this study, we find that the protein encoded by human PGBD5, the most evolutionarily conserved transposable element-derived gene in vertebrates, can induce stereotypical cut-and-paste DNA transposition in human cells. Genomic integration activity of PGBD5 requires distinct aspartic acid residues in its transposase domain, and specific DNA sequences containing inverted terminal repeats with similarity to piggyBac transposons. DNA transposition catalyzed by PGBD5 in human cells occurs genome-wide, with precise transposon excision and preference for insertion at TTAA sites. The apparent conservation of DNA transposition activity by PGBD5 suggests that genomic remodeling contributes to its biological function.
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Affiliation(s)
- Anton G Henssen
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Elizabeth Henaff
- Institute for Computational Biomedicine, Weill Cornell Medical College, New York, United States
| | - Eileen Jiang
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Amy R Eisenberg
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Julianne R Carson
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Camila M Villasante
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Mondira Ray
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Eric Still
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Melissa Burns
- Boston Children's Hospital, Harvard Medical School, Boston, United States
| | - Jorge Gandara
- Institute for Computational Biomedicine, Weill Cornell Medical College, New York, United States
| | - Cedric Feschotte
- Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, United States
| | - Christopher E Mason
- Institute for Computational Biomedicine, Weill Cornell Medical College, New York, United States
| | - Alex Kentsis
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, United States.,Department of Pediatrics, Memorial Sloan Kaettering Cancer Center, New York, United States.,Weill Cornell Medical College, Cornell University, New York, United States
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11
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Ma S, Wang X, Fei J, Liu Y, Duan J, Wang F, Xu H, Zhao P, Xia Q. Genetic marking of sex using a W chromosome-linked transgene. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2013; 43:1079-1086. [PMID: 24036279 DOI: 10.1016/j.ibmb.2013.08.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 08/29/2013] [Accepted: 08/29/2013] [Indexed: 06/02/2023]
Abstract
Many species belonging to the order Lepidoptera are major pests in agriculture and arboriculture. The sterile insect technique (SIT) is an eco-friendly and highly efficient genetically targeted pest management approach. In many cases, it is preferable to release only sterile males in an SIT program, and efficient sexing strategies are crucial to the successful large-scale implementation of SIT. In the present study, we established 160 transgenic silkworm (Bombyx mori) lines to test the possibility of genetic sexing using a W chromosome-linked transgene, which is thought to be the best sexing strategy for lepidopteran species. One transgenic line with a female-specific expression pattern of reporter gene was obtained. The expression level of the W-linked transgene was comparable with autosomal insertions and was stable for 17 continuous generations. Molecular characterization showed this line contained a single copy of the reporter gene on the W chromosome, and the integration site was TTAG in contig W-BAC-522N19-C9. The feasibility of using a W chromosome-linked transgene demonstrated here and the possible improvements discussed will provide valuable information for other lepidopteran pests. The novel W chromosome-linked transgenic line established in this study will serve as an important resource for fundamental research with the silkworm B. mori.
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Affiliation(s)
- Sanyuan Ma
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China
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12
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Solodushko V, Bitko V, Fouty B. Minimal piggyBac vectors for chromatin integration. Gene Ther 2013; 21:1-9. [PMID: 24131979 DOI: 10.1038/gt.2013.52] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 07/16/2013] [Accepted: 08/27/2013] [Indexed: 01/22/2023]
Abstract
We describe novel transposon piggyBac vectors engineered to deliver transgenes as efficiently as currently available piggyBac systems, but with significantly less helper DNA co-delivered into the host genome. To generate these plasmids, we identified a previously unreported aspect of transposon biology, that the full-length terminal domains required for successful plasmid-to-chromatin transgene delivery can be removed from the transgene delivery cassette to other parts of the plasmid without significantly impairing transposition efficiency. This is achieved by including in the same plasmid, an additional helper piggyBac sequence that contains both long terminal domains, but is modified to prevent its transposition into the host genome. This design decreases the size of the required terminal domains within the delivered gene cassette of the piggyBac vector from about 1500 to just 98 base pairs. By removing these sequences from the delivered gene cassette, they are no longer incorporated into the host genome which may reduce the risk of target cell transformation.
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Affiliation(s)
- V Solodushko
- 1] Center for Lung Biology, University of South Alabama School of Medicine, Mobile, AL, USA [2] Department of Pharmacology, University of South Alabama School of Medicine, Mobile, AL, USA
| | - V Bitko
- NanoBio Corporation, Ann Arbor, MI, USA
| | - B Fouty
- 1] Center for Lung Biology, University of South Alabama School of Medicine, Mobile, AL, USA [2] Department of Pharmacology, University of South Alabama School of Medicine, Mobile, AL, USA [3] Department of Internal Medicine University of South Alabama School of Medicine, Mobile, AL, USA
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13
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Abstract
The ability to manipulate the genomes of many insects has become a practical reality over the past 15 years. This has been led by the identification of several useful transposon vector systems that have allowed the identification and development of generalized, species-specific, and tissue-specific promoter systems for controlled expression of gene products upon introduction into insect genomes. Armed with these capabilities, researchers have made significant strides in both fundamental and applied transgenics in key model systems such as Bombyx mori, Tribolium casteneum, Aedes aegypti, and Anopheles stephensi. Limitations of transposon systems were identified, and alternative tools were developed, thus significantly increasing the potential for applied transgenics for control of both agricultural and medical insect pests. The next 10 years promise to be an exciting time of transitioning from the laboratory to the field, from basic research to applied control, during which the full potential of gene manipulation in insect systems will ultimately be realized.
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Affiliation(s)
- Malcolm J Fraser
- Eck Institute for Global Health, Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556-0369, USA.
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14
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Restoration of dystrophin expression using the Sleeping Beauty transposon. PLOS CURRENTS 2011; 3:RRN1296. [PMID: 22318674 PMCID: PMC3269885 DOI: 10.1371/currents.rrn1296] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 12/29/2011] [Indexed: 11/25/2022]
Abstract
The Sleeping beauty (SB) system is a non-viral DNA based vector that has been used to stably integrate therapeutic genes into disease models. Here we report the SB system is capable of stably integrating the ΔR4-R23/CTΔ micro-dystrophin gene into a conditionally immortal dystrophin deficient muscle cell-line, H2K SF1, a murine cell model for Duchenne muscular dystrophy. Genetically corrected H2K SF1 cells retained their myogenic properties in vitro. Moreover, upon transplantation ΔR4-R23/CTΔ micro-dystrophin expression was detected within mdx nu/nu mice. Our data suggests the SB system is an effective way of stably integrating therapeutic genes into myogenic cells.
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15
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Fonager J, Franke-Fayard BMD, Adams JH, Ramesar J, Klop O, Khan SM, Janse CJ, Waters AP. Development of the piggyBac transposable system for Plasmodium berghei and its application for random mutagenesis in malaria parasites. BMC Genomics 2011; 12:155. [PMID: 21418605 PMCID: PMC3073922 DOI: 10.1186/1471-2164-12-155] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 03/20/2011] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The genome of a number of species of malaria parasites (Plasmodium spp.) has been sequenced in the hope of identifying new drug and vaccine targets. However, almost one-half of predicted Plasmodium genes are annotated as hypothetical and are difficult to analyse in bulk due to the inefficiency of current reverse genetic methodologies for Plasmodium. Recently, it has been shown that the transposase piggyBac integrates at random into the genome of the human malaria parasite P. falciparum offering the possibility to develop forward genetic screens to analyse Plasmodium gene function. This study reports the development and application of the piggyBac transposition system for the rodent malaria parasite P. berghei and the evaluation of its potential as a tool in forward genetic studies. P. berghei is the most frequently used malaria parasite model in gene function analysis since phenotype screens throughout the complete Plasmodium life cycle are possible both in vitro and in vivo. RESULTS We demonstrate that piggyBac based gene inactivation and promoter-trapping is both easier and more efficient in P. berghei than in the human malaria parasite, P. falciparum. Random piggyBac-mediated insertion into genes was achieved after parasites were transfected with the piggyBac donor plasmid either when transposase was expressed either from a helper plasmid or a stably integrated gene in the genome. Characterization of more than 120 insertion sites demonstrated that more than 70 most likely affect gene expression classifying their protein products as non-essential for asexual blood stage development. The non-essential nature of two of these genes was confirmed by targeted gene deletion one of which encodes P41, an ortholog of a human malaria vaccine candidate. Importantly for future development of whole genome phenotypic screens the remobilization of the piggyBac element in parasites that stably express transposase was demonstrated. CONCLUSION These data demonstrate that piggyBac behaved as an efficient and random transposon in P. berghei. Remobilization of piggyBac element shows that with further development the piggyBac system can be an effective tool to generate random genome-wide mutation parasite libraries, for use in large-scale phenotype screens in vitro and in vivo.
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Affiliation(s)
- Jannik Fonager
- Leiden Malaria Research Group, Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden. The Netherlands
| | - Blandine MD Franke-Fayard
- Leiden Malaria Research Group, Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden. The Netherlands
| | - John H Adams
- Department of Global Health, College of Public Health, University of South Florida, Tampa, Florida USA
| | - Jai Ramesar
- Leiden Malaria Research Group, Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden. The Netherlands
| | - Onny Klop
- Leiden Malaria Research Group, Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden. The Netherlands
| | - Shahid M Khan
- Leiden Malaria Research Group, Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden. The Netherlands
| | - Chris J Janse
- Leiden Malaria Research Group, Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden. The Netherlands
| | - Andrew P Waters
- Institute of, Infection, Immunity & Inflammation, School of Medical, Veterinary & Life Sciences, & Wellcome Centre for Molecular Parasitology, Glasgow Biomedical Research Centre, University of Glasgow, Scotland, UK
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16
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Daimon T, Mitsuhiro M, Katsuma S, Abe H, Mita K, Shimada T. Recent transposition of yabusame, a novel piggyBac-like transposable element in the genome of the silkworm, Bombyx mori. Genome 2010; 53:585-93. [DOI: 10.1139/g10-035] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
On the W chromosome of the silkworm, Bombyx mori , we found a novel piggyBac-like DNA transposon that potentially encodes an intact transposase (610 amino acid residues), which is flanked by 16-bp perfect inverted terminal repeats and a duplicated TTAA target site. Interestingly, we also identified another intact copy of this transposon on an autosome (chromosome 21), which showed 99.6% identity in the DNA sequence of the transposase (99.3% amino acid identity). These features raised the possibility that this novel piggyBac-like DNA transposon, designated as yabusame, may retain transposition activity. Here we report the identification and characterization of yabusame transposons from the silkworm. We cloned the full length of the yabusame transposon on the W chromosome (yabusame-W) and its autosomal copy (yabusame-1). Southern blot analysis showed that there are interstrain polymorphisms in yabusame elements for their insertion sites and copy number. We also found strong evidence for the recent transposition of yabusame elements in the silkworm genome. Although our in vitro excision assays suggested that the transposition activity of yabusame-1 and yabusame-W has been lost almost entirely, our data will lead to a greater understanding of the characteristics of piggyBac superfamily elements.
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Affiliation(s)
- Takaaki Daimon
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
- Department of Biological Production, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Saiwai-cho 3-5-8, Fuchu, Tokyo 183-8509, Japan
- National Institute of Agrobiological Science, Tsukuba, Ibaraki 305-8634, Japan
| | - Masao Mitsuhiro
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
- Department of Biological Production, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Saiwai-cho 3-5-8, Fuchu, Tokyo 183-8509, Japan
- National Institute of Agrobiological Science, Tsukuba, Ibaraki 305-8634, Japan
| | - Susumu Katsuma
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
- Department of Biological Production, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Saiwai-cho 3-5-8, Fuchu, Tokyo 183-8509, Japan
- National Institute of Agrobiological Science, Tsukuba, Ibaraki 305-8634, Japan
| | - Hiroaki Abe
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
- Department of Biological Production, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Saiwai-cho 3-5-8, Fuchu, Tokyo 183-8509, Japan
- National Institute of Agrobiological Science, Tsukuba, Ibaraki 305-8634, Japan
| | - Kazuei Mita
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
- Department of Biological Production, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Saiwai-cho 3-5-8, Fuchu, Tokyo 183-8509, Japan
- National Institute of Agrobiological Science, Tsukuba, Ibaraki 305-8634, Japan
| | - Toru Shimada
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
- Department of Biological Production, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Saiwai-cho 3-5-8, Fuchu, Tokyo 183-8509, Japan
- National Institute of Agrobiological Science, Tsukuba, Ibaraki 305-8634, Japan
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17
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Manuri PVR, Wilson MH, Maiti SN, Mi T, Singh H, Olivares S, Dawson MJ, Huls H, Lee DA, Rao PH, Kaminski JM, Nakazawa Y, Gottschalk S, Kebriaei P, Shpall EJ, Champlin RE, Cooper LJN. piggyBac transposon/transposase system to generate CD19-specific T cells for the treatment of B-lineage malignancies. Hum Gene Ther 2010; 21:427-37. [PMID: 19905893 DOI: 10.1089/hum.2009.114] [Citation(s) in RCA: 104] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Nonviral integrating vectors can be used for expression of therapeutic genes. piggyBac (PB), a transposon/transposase system, has been used to efficiently generate induced pluripotent stems cells from somatic cells, without genetic alteration. In this paper, we apply PB transposition to express a chimeric antigen receptor (CAR) in primary human T cells. We demonstrate that T cells electroporated to introduce the PB transposon and transposase stably express CD19-specific CAR and when cultured on CD19(+) artificial antigen-presenting cells, numerically expand in a CAR-dependent manner, display a phenotype associated with both memory and effector T cell populations, and exhibit CD19-dependent killing of tumor targets. Integration of the PB transposon expressing CAR was not associated with genotoxicity, based on chromosome analysis. PB transposition for generating human T cells with redirected specificity to a desired target such as CD19 is a new genetic approach with therapeutic implications.
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Affiliation(s)
- Pallavi V Raja Manuri
- Division of Pediatrics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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18
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Wang S, Zhang L, Meyer E, Matz MV. Characterization of a group of MITEs with unusual features from two coral genomes. PLoS One 2010; 5:e10700. [PMID: 20502527 PMCID: PMC2872659 DOI: 10.1371/journal.pone.0010700] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Accepted: 04/27/2010] [Indexed: 01/24/2023] Open
Abstract
Background Miniature inverted-repeat transposable elements (MITEs), which are common in eukaryotic genomes, are small non-coding elements that transpose by utilizing transposases encoded by autonomous transposons. Recent genome-wide analyses and cross-mobilization assays have greatly improved our knowledge on MITE proliferation, however, specific mechanisms for the origin and evolution of MITEs are still unclear. Principal Findings A group of coral MITEs called CMITE were identified from two corals, Acropora millepora and Acropora palmata. CMITEs conform to many common characteristics of MITEs, but also present several unusual features. The most unusual feature of CMITEs is conservation of the internal region, which is more conserved between MITE families than the TIRs. The origin of this internal region remains unknown, although we found one CMITE family that seems to be derived from a piggyBac-like transposon in A. millepora. CMITEs can form tandem arrays, suggesting an unconventional way for MITEs to increase copy numbers. We also describe a case in which a novel transposable element was created by a CMITE insertion event. Conclusions To our knowledge, this is the first report of identification of MITEs from coral genomes. Proliferation of CMITEs seems to be related to the transposition machinery of piggyBac-like autonomous transposons. The highly conserved internal region of CMITEs suggests a potential role for this region in their successful transposition. However, the origin of these unusual features in CMITEs remains unclear, and thus represents an intriguing topic for future investigations.
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Affiliation(s)
- Shi Wang
- Section of Integrative Biology, University of Texas at Austin, Austin, Texas, United States of America.
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19
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Kahlig KM, Saridey SK, Kaja A, Daniels MA, George AL, Wilson MH. Multiplexed transposon-mediated stable gene transfer in human cells. Proc Natl Acad Sci U S A 2010; 107:1343-8. [PMID: 20080581 PMCID: PMC2824351 DOI: 10.1073/pnas.0910383107] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Generation of cultured human cells stably expressing one or more recombinant gene sequences is a widely used approach in biomedical research, biotechnology, and drug development. Conventional methods are not efficient and have severe limitations especially when engineering cells to coexpress multiple transgenes or multiprotein complexes. In this report, we harnessed the highly efficient, nonviral, and plasmid-based piggyBac transposon system to enable concurrent genomic integration of multiple independent transposons harboring distinct protein-coding DNA sequences. Flow cytometry of cell clones derived from a single multiplexed transfection demonstrated approximately 60% (three transposons) or approximately 30% (four transposons) stable coexpression of all delivered transgenes with selection for a single marker transposon. We validated multiplexed piggyBac transposon delivery by coexpressing large transgenes encoding a multisubunit neuronal voltage-gated sodium channel (SCN1A) containing a pore-forming subunit and two accessory subunits while using two additional genes for selection. Previously unobtainable robust sodium current was demonstrated through 38 passages, suitable for use on an automated high-throughput electrophysiology platform. Cotransfection of three large (up to 10.8 kb) piggyBac transposons generated a heterozygous SCN1A stable cell line expressing two separate alleles of the pore-forming subunit and two accessory subunits (total of four sodium channel subunits) with robust functional expression. We conclude that the piggyBac transposon system can be used to perform multiplexed stable gene transfer in cultured human cells, and this technology may be valuable for applications requiring concurrent expression of multiprotein complexes.
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Affiliation(s)
| | | | | | | | - Alfred L. George
- Department of Medicine and
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37235
| | - Matthew H. Wilson
- Michael E. DeBakey VA Medical Center
- Department of Medicine, and
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX 77030
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20
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Ni J, Clark KJ, Fahrenkrug SC, Ekker SC. Transposon tools hopping in vertebrates. BRIEFINGS IN FUNCTIONAL GENOMICS AND PROTEOMICS 2009; 7:444-53. [PMID: 19109308 DOI: 10.1093/bfgp/eln049] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In the past decade, tools derived from DNA transposons have made major contributions to vertebrate genetic studies from gene delivery to gene discovery. Multiple, highly complementary systems have been developed, and many more are in the pipeline. Judging which DNA transposon element will work the best in diverse uses from zebrafish genetic manipulation to human gene therapy is currently a complex task. We have summarized the major transposon vector systems active in vertebrates, comparing and contrasting known critical biochemical and in vivo properties, for future tool design and new genetic applications.
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Affiliation(s)
- Jun Ni
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
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21
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Mitra R, Fain-Thornton J, Craig NL. piggyBac can bypass DNA synthesis during cut and paste transposition. EMBO J 2008; 27:1097-109. [PMID: 18354502 PMCID: PMC2323262 DOI: 10.1038/emboj.2008.41] [Citation(s) in RCA: 161] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2007] [Accepted: 02/07/2008] [Indexed: 12/20/2022] Open
Abstract
DNA synthesis is considered a defining feature in the movement of transposable elements. In determining the mechanism of piggyBac transposition, an insect transposon that is being increasingly used for genome manipulation in a variety of systems including mammalian cells, we have found that DNA synthesis can be avoided during piggyBac transposition, both at the donor site following transposon excision and at the insertion site following transposon integration. We demonstrate that piggyBac transposon excision occurs through the formation of transient hairpins on the transposon ends and that piggyBac target joining occurs by the direct attack of the 3'OH transposon ends on to the target DNA. This is the same strategy for target joining used by the members of DDE superfamily of transposases and retroviral integrases. Analysis of mutant piggyBac transposases in vitro and in vivo using a piggyBac transposition system we have established in Saccharomyces cerevisiae suggests that piggyBac transposase is a member of the DDE superfamily of recombinases, an unanticipated result because of the lack of sequence similarity between piggyBac and DDE family of recombinases.
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Affiliation(s)
- Rupak Mitra
- Department of Molecular Biology and Genetics, Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jennifer Fain-Thornton
- Department of Molecular Biology and Genetics, Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nancy L Craig
- Department of Molecular Biology and Genetics, Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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22
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Wang J, Du Y, Wang S, Brown SJ, Park Y. Large diversity of the piggyBac-like elements in the genome of Tribolium castaneum. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2008; 38:490-8. [PMID: 18342253 PMCID: PMC3206788 DOI: 10.1016/j.ibmb.2007.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2007] [Revised: 04/04/2007] [Accepted: 04/25/2007] [Indexed: 05/12/2023]
Abstract
The piggyBac transposable element (TE), originally discovered in the cabbage looper, Trichoplusia ni, has been widely used in insect transgenesis including the red flour beetle Tribolium castaneum. We surveyed piggyBac-like (PLE) sequences in the genome of T. castaneum by homology searches using as queries the diverse PLE sequences that have been described previously. The search yielded a total of 32 piggyBac-like elements (TcPLEs) which were classified into 14 distinct groups. Most of the TcPLEs contain defective functional motifs in that they are lacking inverted terminal repeats (ITRs) or have disrupted open reading frames. Only one single copy of TcPLE1 appears to be intact with imperfect 16bp ITRs flanking an open reading frame encoding a transposase of 571 amino acid residues. Many copies of TcPLEs were found to be inserted into or close to other transposon-like sequences. This large diversity of TcPLEs with generally low copy numbers suggests multiple invasions of the TcPLEs over a long evolutionary time without extensive multiplications or occurrence of rapid loss of TcPLEs copies.
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Affiliation(s)
- Jianjun Wang
- Department of Plant Protection, Yangzhou University, Yangzhou, China.
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23
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Abstract
Transposons are mobile genetic elements that can be used to integrate transgenes into host cell genomes. The piggyBac transposon system has been used for transgenesis of insects and for germline mutagenesis in mice. We compared transposition activity of piggyBac with Sleeping Beauty (SB), a widely used transposon system for preclinical gene therapy studies. An engineered piggyBac transposon with minimal length 5' and 3' terminal repeats exhibited greater transposition activity in transfected cultured human cells than a well-characterized hyperactive SB system. PiggyBac excision was very precise as evidenced by the typical absence of "footprint" mutations at the site of transposon excision. We mapped 575 piggyBac integration sites in human cells to determine site selectivity of genomic integration. PiggyBac demonstrated non-random integration site selectivity that differed from that previously reported for SB, including a higher preference for integrations in regions surrounding transcriptional start sites and within long terminal repeat elements. Importantly, overproduction inhibition was not observed with piggyBac, a major limitation of the SB system. This permitted the generation of combination "helper-independent" piggyBac transposase-transposon vectors that exhibited a 2-fold increase of transposition activity in human cells as compared with cells transfected with separate transposon and transposase plasmids. We conclude that piggyBac is a transposon system with certain properties, including high efficiency and lack of overproduction inhibition that are advantageous in preclinical development of transposon-based gene therapy.
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Affiliation(s)
- Matthew H Wilson
- 1Division of Genetic Medicine, Department of Medicine, Vanderbilt University, Nashville, Tennessee, USA
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24
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Sun ZC, Wu M, Miller TA, Han ZJ. piggyBac-like elements in cotton bollworm, Helicoverpa armigera (Hübner). INSECT MOLECULAR BIOLOGY 2008; 17:9-18. [PMID: 18237280 DOI: 10.1111/j.1365-2583.2008.00780.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Two piggyBac-like elements (PLEs) were identified in the cotton bollworm, Helicoverpa armigera, and were designated as HaPLE1 and HaPLE2. HaPLE1 is flanked by 16 bp inverted terminal repeats (ITRs) and the duplicated TTAA tetranucleotide, and contains an open reading frame (ORF) of 1794 bp with the presumed DDD domain, indicating that this element may be an active autonomously mobile element. HaPLE2 was found with the same ITRs, but lacks the majority of an ORF-encoding transposase. Thus, this element was thought to be a non-autonomous element. Transposable element displays and distribution of the two PLEs in individuals from three different H. armigera populations suggest that transmobilization of HaPLE2 by the transposase of HaPLE1 may be likely, and mobilization of HaPLE1 might occur not only within the same individual, but also among different individuals. In addition, horizontal transfer was probably involved in the evolution of PLEs between H. armigera and Trichoplusia ni.
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Affiliation(s)
- Z C Sun
- Key Lab of Monitoring and Management of Plant Disease and Insects, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, People's Republic of China
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25
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Lobo NF, Fraser TS, Adams JA, Fraser MJ. Interplasmid transposition demonstrates piggyBac mobility in vertebrate species. Genetica 2007; 128:347-57. [PMID: 17028963 DOI: 10.1007/s10709-006-7165-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2005] [Accepted: 02/01/2006] [Indexed: 10/24/2022]
Abstract
The piggyBac transposon is an extremely versatile helper-dependent vector for gene transfer and germ line transformation in a wide range of invertebrate species. Analyses of genome sequencing databases have identified piggyBac homologues among several sequenced animal genomes, including the human genome. In this report we demonstrate that this insect transposon is capable of transposition in primate cells and embryos of the zebrafish, Danio rerio. piggyBac mobility was demonstrated using an interplasmid transposition assay that has consistently predicted the germ line transformation capabilities of this mobile element in several other species. Both transfected COS-7 primate cells and injected zebrafish embryos supported the helper-dependent movement of tagged piggyBac element between plasmids in the characteristic cut-and-paste, TTAA target-site specific manner. These results validate piggyBac as a valuable tool for genetic analysis of vertebrates.
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Affiliation(s)
- Neil F Lobo
- Department of Biological Sciences, Center for Tropical Diseases Research and Training, University of Notre Dame, PO Box 369, Notre Dame, IN 46556-0369, USA
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Ren X, Han Z, Miller TA. Excision and transposition of piggyBac transposable element in tobacco budworm embryos. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2006; 63:49-56. [PMID: 16983664 DOI: 10.1002/arch.20140] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The TTAA-specific lepidopteran transposon piggyBac has already proved useful as a gene-transfer vector for efficient transformation of a wide variety of insects. Transposable element excision and transposition assays are useful indicators of an element's ability to be mobilized in vivo and, thus, potentially serve as a transforming vector. Here, we report that this transposon is capable of excision and transposition in tobacco budworm embryos with relatively low frequency.
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Affiliation(s)
- Xiaoxia Ren
- Department of Entomology, University of California, Riverside, CA 92521, USA
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27
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Wang J, Ren X, Miller TA, Park Y. piggyBac-like elements in the tobacco budworm, Heliothis virescens (Fabricius). INSECT MOLECULAR BIOLOGY 2006; 15:435-43. [PMID: 16907830 DOI: 10.1111/j.1365-2583.2006.00653.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We identified two different groups of piggyBac-like elements (PLE) in the tobacco budworm, Heliothis virescens, and named them HvPLE1 and HvPLE2. An intact copy of HvPLE1 revealed the characteristics of PLE: inverted terminal repeats, inverted subterminal repeats, and an open reading frame encoding transposase, whereas other HvPLE1 copies and all the HvPLE2 copies carried disruptive mutations in the region encoding transposase. We also identified none to two bands per genome hybridized to a probe of Trichoplusia ni piggyBac in genomic Southern blotting, which are different from HvPLE1 or HvPLE2. Analysis of the sequences of multiple copies of HvPLE1 and HvPLE2 suggests that the PLEs are closely related to the T. ni piggyBac, of relatively young age, and independently entered the H. virescens genome.
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Affiliation(s)
- J Wang
- Department of Entomology, Kansas State University, Manhattan, KS 66506, USA
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28
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Xu HF, Xia QY, Liu C, Cheng TC, Zhao P, Duan J, Zha XF, Liu SP. Identification and characterization of piggyBac-like elements in the genome of domesticated silkworm, Bombyx mori. Mol Genet Genomics 2006; 276:31-40. [PMID: 16685528 DOI: 10.1007/s00438-006-0124-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2005] [Accepted: 03/27/2006] [Indexed: 11/26/2022]
Abstract
piggyBac is a short inverted terminal repeat (ITR) transposable element originally discovered in Trichoplusia ni. It is currently the preferred vector of choice for enhancer trapping, gene discovery and identifying gene function in insects and mammals. Many piggyBac-like sequences have been found in the genomes of phylogenetically species from fungi to mammals. We have identified 98 piggyBac-like sequences (BmPBLE1-98) from the genome data of domesticated silkworm (Bombyx mori) and 17 fragments from expressed sequence tags (ESTs). Most of the BmPBLE1-98 probably exist as fossils. A total of 21 BmPBLEs are flanked by ITRs and TTAA host dinucleotides, of which 5 contain a single ORF, implying that they may still be active. Interestingly, 16 BmPBLEs have CAC/GTG not CCC/GGG as the characteristic residues of ITRs, which is a surprising phenomenon first observed in the piggyBac families. Phylogenetic analysis indicates that many BmPBLEs have a close relation to mammals, especially to Homo sapiens, only a few being grouped with the T. ni piggyBac element. In addition, horizontal transfer was probably involved in the evolution of the piggyBac-like elements between B. mori and Daphnia pulicaria. The analysis of the BmPBLEs will contribute to our understanding of the characteristic of the piggyBac family and application of piggyBac in a wide range of insect species.
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Affiliation(s)
- Han-Fu Xu
- The Key Sericultural Laboratory of Agricultural Ministry of China, Southwest University, Chongqing, 400716, China
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29
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Heinrich JC, Li X, Henry RA, Haack N, Stringfellow L, Heath ACG, Scott MJ. Germ-line transformation of the Australian sheep blowfly Lucilia cuprina. INSECT MOLECULAR BIOLOGY 2002; 11:1-10. [PMID: 11841497 DOI: 10.1046/j.0962-1075.2001.00301.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The Australian sheep blowfly, Lucilia cuprina, is the most important economic insect pest for the sheep industries in Australia and New Zealand. piggyBac-mediated germ-line transformation of L. cuprina was achieved with a helper plasmid that had the Drosophila melanogaster hsp70 promoter controlling expression of the transposase and a piggyBac vector with an EGFP marker gene. Two transformant lines were obtained, at a frequency of approximately 1-2% per fertile G0. One of these lines has a single copy of the transgene, the other most likely has four copies. This is the first report of germ-line transformation of L. cuprina and is an important step towards the generation of engineered strains that would be suitable for male-only release eradication/suppression programmes.
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Affiliation(s)
- J C Heinrich
- Institute of Molecular BioSciences, Massey University, Palmerston North, New Zealand
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30
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Peloquin JJ, Thibault ST, Staten R, Miller TA. Germ-line transformation of pink bollworm (Lepidoptera: gelechiidae) mediated by the piggyBac transposable element. INSECT MOLECULAR BIOLOGY 2000; 9:323-333. [PMID: 10886417 DOI: 10.1046/j.1365-2583.2000.00194.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The pink bollworm, Pectinophora gossypiella, is a world-wide pest of cultivated cotton. In certain growing regions populations are suppressed by a sterile release strategy. Efforts to improve the sterile insect technique as well as our understanding of lepidopteran biology could benefit greatly from a germ-line transformation system. We report transformation of pink bollworm with a piggyBac transposable element carrying the enhanced green flourescent protein (EGFP) marker gene. This vector-marker system resulted in recovery of transgenics at a rate of approximately 3.5%. Integration of the transforming construct that was typical of piggyBac was demonstrated by Southern analysis and sequence determination of transposon flanks. Expression of the EGFP marker was visualized by fluorescent microscopy and Western Blot analysis. Maintenance of transformed strains indicates that the transgene segregates in a Mendelian fashion and has been stable over fourteen generations to date.
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Affiliation(s)
- J J Peloquin
- Department of Entomology, UC Riverside, Riverside, CA,
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31
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Franco M, Rogers ME, Shimizu C, Shike H, Vogt RG, Burns JC. Infection of lepidoptera with a pseudotyped retroviral vector. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 1998; 28:819-825. [PMID: 9818383 DOI: 10.1016/s0965-1748(98)00056-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Studies requiring the introduction and expression of manipulated gene constructs have been technically difficult in non-drosophilid insects. Retroviruses can be engineered to be replication defective and to serve as vectors for gene constructs of interest. In this study, pseudotyped MoMLV(VSV-G) retroviral vectors are shown to successfully infect lepidopteran cells in vitro and in vivo. In Spodoptera frugiperda cells in vitro and in Manduca sexta in vivo, infection and conversion to proviral DNA were confirmed by PCR amplification and Southern blot hybridization of vector-specific sequences. Gene expression and integration of proviral DNA were also documented in vitro. This is the first report of retroviral infection in lepidoptera and suggests that pseudotyped retroviral vectors could be powerful tools in gene manipulation studies of non-drosophilid insects.
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Affiliation(s)
- M Franco
- Department of Biological Sciences, University of South Carolina, Columbia 29208, USA
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