High-brightness anterograde transneuronal HSV1 H129 tracer modified using a Trojan horse-like strategy

Neurotropic viral transsynaptic tracing is an increasingly powerful technique for dissecting the structure and function of neural circuits. Herpes simplex virus type 1 strain H129 has been widely used as an anterograde tracer. However, HSV tracers still have several shortcomings, including high toxi...

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Veröffentlicht in:Molecular brain 2020-01, Vol.13 (1), p.5-5, Article 5
Hauptverfasser: Su, Peng, Ying, Min, Han, Zengpeng, Xia, Jinjin, Jin, Sen, Li, Yingli, Wang, Huadong, Xu, Fuqiang
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container_title Molecular brain
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creator Su, Peng
Ying, Min
Han, Zengpeng
Xia, Jinjin
Jin, Sen
Li, Yingli
Wang, Huadong
Xu, Fuqiang
description Neurotropic viral transsynaptic tracing is an increasingly powerful technique for dissecting the structure and function of neural circuits. Herpes simplex virus type 1 strain H129 has been widely used as an anterograde tracer. However, HSV tracers still have several shortcomings, including high toxicity, low sensitivity and non-specific retrograde labeling. Here, we aimed to construct high-brightness HSV anterograde tracers by increasing the expression of exogenous genes carried by H129 viruses. Using a Trojan horse-like strategy, a HSV/AAV (adeno-associated virus) chimaera termed H8 was generated to enhance the expression of a fluorescent marker. In vitro and in vivo assays showed that the exogenous gene was efficiently replicated and amplified by the synergism of the HSV vector and introduced AAV replication system. H8 reporting fluorescence was brighter than that of currently available H129 tracers, and H8 could be used for fast and effective anterograde tracing without additional immunostaining. These results indicated that foreign gene expression in HSV tracers could be enhanced by integrating HSV with AAV replication system. This approach may be useful as a general enhanced expression strategy for HSV-based tracing tools or gene delivery vectors.
doi_str_mv 10.1186/s13041-020-0544-2
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Herpes simplex virus type 1 strain H129 has been widely used as an anterograde tracer. However, HSV tracers still have several shortcomings, including high toxicity, low sensitivity and non-specific retrograde labeling. Here, we aimed to construct high-brightness HSV anterograde tracers by increasing the expression of exogenous genes carried by H129 viruses. Using a Trojan horse-like strategy, a HSV/AAV (adeno-associated virus) chimaera termed H8 was generated to enhance the expression of a fluorescent marker. In vitro and in vivo assays showed that the exogenous gene was efficiently replicated and amplified by the synergism of the HSV vector and introduced AAV replication system. H8 reporting fluorescence was brighter than that of currently available H129 tracers, and H8 could be used for fast and effective anterograde tracing without additional immunostaining. 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This approach may be useful as a general enhanced expression strategy for HSV-based tracing tools or gene delivery vectors.</description><identifier>ISSN: 1756-6606</identifier><identifier>EISSN: 1756-6606</identifier><identifier>DOI: 10.1186/s13041-020-0544-2</identifier><identifier>PMID: 31931837</identifier><language>eng</language><publisher>LONDON: Springer Nature</publisher><subject>Adeno-associated virus ; Animals ; Anterograde tracer ; Antibiotics ; Axonal Transport - physiology ; Brain - cytology ; Brightness ; Cell Line ; Cell Nucleus - virology ; Defective Viruses - genetics ; Defective Viruses - physiology ; Deoxyribonucleic acid ; Dependovirus - genetics ; Dependovirus - physiology ; DNA ; Expression vectors ; Fluorescence ; Fluorescent indicators ; Gene expression ; Gene therapy ; Gene transfer ; Genes ; Genes, Reporter ; Genes, Synthetic ; Genetic research ; Genetic vectors ; Genomes ; Green Fluorescent Proteins - analysis ; Green Fluorescent Proteins - biosynthesis ; Green Fluorescent Proteins - genetics ; H129 ; Helper Viruses - genetics ; Helper Viruses - physiology ; Herpes simplex ; Herpes simplex virus ; Herpes viruses ; Herpesvirus 1, Human - genetics ; Herpesvirus 1, Human - physiology ; Herpesvirus infections ; Infections ; Laboratory animals ; Life Sciences &amp; Biomedicine ; Male ; Malware ; Methodology ; Mice ; Mice, Inbred C57BL ; Neural circuit tracing ; Neural circuitry ; Neural networks ; Neural Pathways - ultrastructure ; Neuroanatomical Tract-Tracing Techniques - methods ; Neuronal Tract-Tracers - analysis ; Neurons - ultrastructure ; Neurons - virology ; Neurosciences ; Neurosciences &amp; Neurology ; Plasmids ; Protein expression ; Proteins ; Reassortant Viruses - genetics ; Reassortant Viruses - physiology ; Replication ; Science &amp; Technology ; Structure-function relationships ; Toxicity ; Tracers ; Tracers (Biology) ; Trojan horse-like strategy ; Viral Replicase Complex Proteins - genetics ; Virus Replication</subject><ispartof>Molecular brain, 2020-01, Vol.13 (1), p.5-5, Article 5</ispartof><rights>COPYRIGHT 2020 BioMed Central Ltd.</rights><rights>2020. 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Herpes simplex virus type 1 strain H129 has been widely used as an anterograde tracer. However, HSV tracers still have several shortcomings, including high toxicity, low sensitivity and non-specific retrograde labeling. Here, we aimed to construct high-brightness HSV anterograde tracers by increasing the expression of exogenous genes carried by H129 viruses. Using a Trojan horse-like strategy, a HSV/AAV (adeno-associated virus) chimaera termed H8 was generated to enhance the expression of a fluorescent marker. In vitro and in vivo assays showed that the exogenous gene was efficiently replicated and amplified by the synergism of the HSV vector and introduced AAV replication system. H8 reporting fluorescence was brighter than that of currently available H129 tracers, and H8 could be used for fast and effective anterograde tracing without additional immunostaining. 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Biomedicine</subject><subject>Male</subject><subject>Malware</subject><subject>Methodology</subject><subject>Mice</subject><subject>Mice, Inbred C57BL</subject><subject>Neural circuit tracing</subject><subject>Neural circuitry</subject><subject>Neural networks</subject><subject>Neural Pathways - ultrastructure</subject><subject>Neuroanatomical Tract-Tracing Techniques - methods</subject><subject>Neuronal Tract-Tracers - analysis</subject><subject>Neurons - ultrastructure</subject><subject>Neurons - virology</subject><subject>Neurosciences</subject><subject>Neurosciences &amp; Neurology</subject><subject>Plasmids</subject><subject>Protein expression</subject><subject>Proteins</subject><subject>Reassortant Viruses - genetics</subject><subject>Reassortant Viruses - physiology</subject><subject>Replication</subject><subject>Science &amp; Technology</subject><subject>Structure-function relationships</subject><subject>Toxicity</subject><subject>Tracers</subject><subject>Tracers (Biology)</subject><subject>Trojan horse-like strategy</subject><subject>Viral Replicase Complex Proteins - genetics</subject><subject>Virus Replication</subject><issn>1756-6606</issn><issn>1756-6606</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>AOWDO</sourceid><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>DOA</sourceid><recordid>eNqNkl1rFDEUhgdRbK3-AG9kwBtBpiaTydeNUBZ1CwUvrN6GfJyZzTqb1GRG6b8349a1K15IIAknz_uSk7xV9Ryjc4wFe5MxQR1uUIsaRLuuaR9Up5hT1jCG2MN7-5PqSc5bhFjLMH1cnRAsCRaEn1b92g-bxqQyTwFyrnWYIMUhaQf1lHTIAeYUgx7r9acvuF7jVi51C6neRed7D66esw9DrevrFLc61JuYMjSj_wp1LugEw-3T6lGvxwzP7taz6vP7d9erdXP18cPl6uKqsZShqdGd5cYRKg0mWmAnGaLQY2fajjhBneXMMGG0la2hYEgrEKGi5Yz3ABJTclZd7n1d1Ft1k_xOp1sVtVe_CjENSqfJ2xEUFRZ6ZAhxhnZGS6kJtw4RAx0H3Nni9XbvdTObHTgLoTQzHpkenwS_UUP8rpikgktcDF7dGaT4bYY8qZ3PFsZRB4hzVi0hAkks-XLvl3-h2zin8uoL1eGOSyLaP9SgSwM-9HH5icVUXTAsOBaU8UKd_4Mqw8HO2xig96V-JMB7gU0x5wT9oUeM1BI0tQ-aKkFTS9DUcpUX9x_noPidrAKIPfADTOyz9RAsHDCEEMWEUYrLDrUrP-nJx7CKc5iK9PX_S8lPHwXuBA</recordid><startdate>20200113</startdate><enddate>20200113</enddate><creator>Su, Peng</creator><creator>Ying, Min</creator><creator>Han, Zengpeng</creator><creator>Xia, Jinjin</creator><creator>Jin, Sen</creator><creator>Li, Yingli</creator><creator>Wang, Huadong</creator><creator>Xu, Fuqiang</creator><general>Springer Nature</general><general>BioMed Central Ltd</general><general>BioMed Central</general><general>BMC</general><scope>AOWDO</scope><scope>BLEPL</scope><scope>DTL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TK</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0001-8076-3152</orcidid><orcidid>https://orcid.org/0000-0003-2388-6062</orcidid></search><sort><creationdate>20200113</creationdate><title>High-brightness anterograde transneuronal HSV1 H129 tracer modified using a Trojan horse-like strategy</title><author>Su, Peng ; Ying, Min ; Han, Zengpeng ; Xia, Jinjin ; Jin, Sen ; Li, Yingli ; Wang, Huadong ; Xu, Fuqiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c560t-a4c7bd359b13a81d9605ef1db243d85dc76b68bac92b5eb32803582767fee9153</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Adeno-associated virus</topic><topic>Animals</topic><topic>Anterograde tracer</topic><topic>Antibiotics</topic><topic>Axonal Transport - physiology</topic><topic>Brain - cytology</topic><topic>Brightness</topic><topic>Cell Line</topic><topic>Cell Nucleus - virology</topic><topic>Defective Viruses - genetics</topic><topic>Defective Viruses - physiology</topic><topic>Deoxyribonucleic acid</topic><topic>Dependovirus - genetics</topic><topic>Dependovirus - physiology</topic><topic>DNA</topic><topic>Expression vectors</topic><topic>Fluorescence</topic><topic>Fluorescent indicators</topic><topic>Gene expression</topic><topic>Gene therapy</topic><topic>Gene transfer</topic><topic>Genes</topic><topic>Genes, Reporter</topic><topic>Genes, Synthetic</topic><topic>Genetic research</topic><topic>Genetic vectors</topic><topic>Genomes</topic><topic>Green Fluorescent Proteins - analysis</topic><topic>Green Fluorescent Proteins - biosynthesis</topic><topic>Green Fluorescent Proteins - genetics</topic><topic>H129</topic><topic>Helper Viruses - genetics</topic><topic>Helper Viruses - physiology</topic><topic>Herpes simplex</topic><topic>Herpes simplex virus</topic><topic>Herpes viruses</topic><topic>Herpesvirus 1, Human - genetics</topic><topic>Herpesvirus 1, Human - physiology</topic><topic>Herpesvirus infections</topic><topic>Infections</topic><topic>Laboratory animals</topic><topic>Life Sciences &amp; 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Herpes simplex virus type 1 strain H129 has been widely used as an anterograde tracer. However, HSV tracers still have several shortcomings, including high toxicity, low sensitivity and non-specific retrograde labeling. Here, we aimed to construct high-brightness HSV anterograde tracers by increasing the expression of exogenous genes carried by H129 viruses. Using a Trojan horse-like strategy, a HSV/AAV (adeno-associated virus) chimaera termed H8 was generated to enhance the expression of a fluorescent marker. In vitro and in vivo assays showed that the exogenous gene was efficiently replicated and amplified by the synergism of the HSV vector and introduced AAV replication system. H8 reporting fluorescence was brighter than that of currently available H129 tracers, and H8 could be used for fast and effective anterograde tracing without additional immunostaining. These results indicated that foreign gene expression in HSV tracers could be enhanced by integrating HSV with AAV replication system. This approach may be useful as a general enhanced expression strategy for HSV-based tracing tools or gene delivery vectors.</abstract><cop>LONDON</cop><pub>Springer Nature</pub><pmid>31931837</pmid><doi>10.1186/s13041-020-0544-2</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0001-8076-3152</orcidid><orcidid>https://orcid.org/0000-0003-2388-6062</orcidid><oa>free_for_read</oa></addata></record>
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subjects Adeno-associated virus
Animals
Anterograde tracer
Antibiotics
Axonal Transport - physiology
Brain - cytology
Brightness
Cell Line
Cell Nucleus - virology
Defective Viruses - genetics
Defective Viruses - physiology
Deoxyribonucleic acid
Dependovirus - genetics
Dependovirus - physiology
DNA
Expression vectors
Fluorescence
Fluorescent indicators
Gene expression
Gene therapy
Gene transfer
Genes
Genes, Reporter
Genes, Synthetic
Genetic research
Genetic vectors
Genomes
Green Fluorescent Proteins - analysis
Green Fluorescent Proteins - biosynthesis
Green Fluorescent Proteins - genetics
H129
Helper Viruses - genetics
Helper Viruses - physiology
Herpes simplex
Herpes simplex virus
Herpes viruses
Herpesvirus 1, Human - genetics
Herpesvirus 1, Human - physiology
Herpesvirus infections
Infections
Laboratory animals
Life Sciences & Biomedicine
Male
Malware
Methodology
Mice
Mice, Inbred C57BL
Neural circuit tracing
Neural circuitry
Neural networks
Neural Pathways - ultrastructure
Neuroanatomical Tract-Tracing Techniques - methods
Neuronal Tract-Tracers - analysis
Neurons - ultrastructure
Neurons - virology
Neurosciences
Neurosciences & Neurology
Plasmids
Protein expression
Proteins
Reassortant Viruses - genetics
Reassortant Viruses - physiology
Replication
Science & Technology
Structure-function relationships
Toxicity
Tracers
Tracers (Biology)
Trojan horse-like strategy
Viral Replicase Complex Proteins - genetics
Virus Replication
title High-brightness anterograde transneuronal HSV1 H129 tracer modified using a Trojan horse-like strategy
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