Traceless bioresponsive shielding of adenovirus hexon with HPMA copolymers maintains transduction capacity in vitro and in vivo
Capsid surface shielding of adenovirus vectors with synthetic polymers is an emerging technology to reduce unwanted interactions of the vector particles with cellular and non-cellular host components. While it has been shown that attachment of shielding polymers allows prevention of undesired intera...
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| creator | Prill, Jan-Michael Subr, Vladimír Pasquarelli, Noemi Engler, Tatjana Hoffmeister, Andrea Kochanek, Stefan Ulbrich, Karel Kreppel, Florian |
| description | Capsid surface shielding of adenovirus vectors with synthetic polymers is an emerging technology to reduce unwanted interactions of the vector particles with cellular and non-cellular host components. While it has been shown that attachment of shielding polymers allows prevention of undesired interactions, it has become evident that a shield which is covalently attached to the vector surface can negatively affect gene transfer efficiency. Reasons are not only a limited receptor-binding ability of the shielded vectors but also a disturbance of intracellular trafficking processes, the latter depending on the interaction of the vector surface with the cellular transport machinery. A solution might be the development of bioresponsive shields that are stably maintained outside the host cell but released upon cell entry to allow for efficient gene delivery to the nucleus. Here we provide a systematic comparison of irreversible versus bioresponsive shields based on synthetic N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers. In addition, the chemical strategy used for generation of the shield allowed for a traceless bioresponsive shielding, i.e., polymers could be released from the vector particles without leaving residual linker residues. Our data demonstrated that only a bioresponsive shield maintained the high gene transfer efficiency of adenovirus vectors both in vitro and in vivo. As an example for bioresponsive HPMA copolymer release, we analyzed the in vivo gene transfer in the liver. We demonstrated that both the copolymer's charge and the mode of shielding (irreversible versus traceless bioresponsive) profoundly affected liver gene transfer and that traceless bioresponsive shielding with positively charged HPMA copolymers mediated FX independent transduction of hepatocytes. In addition, we demonstrated that shielding with HPMA copolymers can mediate a prolonged blood circulation of vector particles in mice. Our results have significant implications for the future design of polymer-shielded Ad and provide a deeper insight into the interaction of shielded adenovirus vector particles with the host after systemic delivery. |
| doi_str_mv | 10.1371/journal.pone.0082716 |
| format | Article |
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While it has been shown that attachment of shielding polymers allows prevention of undesired interactions, it has become evident that a shield which is covalently attached to the vector surface can negatively affect gene transfer efficiency. Reasons are not only a limited receptor-binding ability of the shielded vectors but also a disturbance of intracellular trafficking processes, the latter depending on the interaction of the vector surface with the cellular transport machinery. A solution might be the development of bioresponsive shields that are stably maintained outside the host cell but released upon cell entry to allow for efficient gene delivery to the nucleus. Here we provide a systematic comparison of irreversible versus bioresponsive shields based on synthetic N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers. In addition, the chemical strategy used for generation of the shield allowed for a traceless bioresponsive shielding, i.e., polymers could be released from the vector particles without leaving residual linker residues. Our data demonstrated that only a bioresponsive shield maintained the high gene transfer efficiency of adenovirus vectors both in vitro and in vivo. As an example for bioresponsive HPMA copolymer release, we analyzed the in vivo gene transfer in the liver. We demonstrated that both the copolymer's charge and the mode of shielding (irreversible versus traceless bioresponsive) profoundly affected liver gene transfer and that traceless bioresponsive shielding with positively charged HPMA copolymers mediated FX independent transduction of hepatocytes. In addition, we demonstrated that shielding with HPMA copolymers can mediate a prolonged blood circulation of vector particles in mice. Our results have significant implications for the future design of polymer-shielded Ad and provide a deeper insight into the interaction of shielded adenovirus vector particles with the host after systemic delivery.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0082716</identifier><identifier>PMID: 24475024</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Adenoviruses ; Animals ; Biology ; Blood circulation ; Blotting, Western ; Capsid Proteins - metabolism ; Chemical bonds ; Copolymers ; Expression vectors ; Female ; Fluorometry ; Gene therapy ; Gene transfer ; Gene Transfer Techniques ; Genetic Vectors - genetics ; Genetic Vectors - metabolism ; Heparan sulfate ; Hepatocytes ; Immunoglobulins ; Immunohistochemistry ; Liver ; Machinery and equipment ; Medicine ; Methacrylamide ; Methacrylates - chemistry ; Methacrylates - metabolism ; Mice ; Mice, Inbred BALB C ; Microscopy, Confocal ; Molecular Structure ; Nuclei ; Nuclei (cytology) ; Organic Chemicals ; Polymerase Chain Reaction ; Polymers ; Proteins ; Shielding ; Shields ; Signal Transduction - physiology ; Statistics, Nonparametric ; Vectors (Biology)</subject><ispartof>PloS one, 2014-01, Vol.9 (1), p.e82716-e82716</ispartof><rights>COPYRIGHT 2014 Public Library of Science</rights><rights>2014 Prill et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2014 Prill et al 2014 Prill et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-fb9b9ed38233de61b0ade7f85cc0e0227e0dcb356f65e571b3c81eabbb41affa3</citedby><cites>FETCH-LOGICAL-c692t-fb9b9ed38233de61b0ade7f85cc0e0227e0dcb356f65e571b3c81eabbb41affa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3903484/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3903484/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,2095,2914,23846,27903,27904,53769,53771,79346,79347</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24475024$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Hong, Saw-See</contributor><creatorcontrib>Prill, Jan-Michael</creatorcontrib><creatorcontrib>Subr, Vladimír</creatorcontrib><creatorcontrib>Pasquarelli, Noemi</creatorcontrib><creatorcontrib>Engler, Tatjana</creatorcontrib><creatorcontrib>Hoffmeister, Andrea</creatorcontrib><creatorcontrib>Kochanek, Stefan</creatorcontrib><creatorcontrib>Ulbrich, Karel</creatorcontrib><creatorcontrib>Kreppel, Florian</creatorcontrib><title>Traceless bioresponsive shielding of adenovirus hexon with HPMA copolymers maintains transduction capacity in vitro and in vivo</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Capsid surface shielding of adenovirus vectors with synthetic polymers is an emerging technology to reduce unwanted interactions of the vector particles with cellular and non-cellular host components. 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Our results have significant implications for the future design of polymer-shielded Ad and provide a deeper insight into the interaction of shielded adenovirus vector particles with the host after systemic delivery.</description><subject>Adenoviruses</subject><subject>Animals</subject><subject>Biology</subject><subject>Blood circulation</subject><subject>Blotting, Western</subject><subject>Capsid Proteins - metabolism</subject><subject>Chemical bonds</subject><subject>Copolymers</subject><subject>Expression vectors</subject><subject>Female</subject><subject>Fluorometry</subject><subject>Gene therapy</subject><subject>Gene transfer</subject><subject>Gene Transfer Techniques</subject><subject>Genetic Vectors - genetics</subject><subject>Genetic Vectors - metabolism</subject><subject>Heparan sulfate</subject><subject>Hepatocytes</subject><subject>Immunoglobulins</subject><subject>Immunohistochemistry</subject><subject>Liver</subject><subject>Machinery and equipment</subject><subject>Medicine</subject><subject>Methacrylamide</subject><subject>Methacrylates - 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While it has been shown that attachment of shielding polymers allows prevention of undesired interactions, it has become evident that a shield which is covalently attached to the vector surface can negatively affect gene transfer efficiency. Reasons are not only a limited receptor-binding ability of the shielded vectors but also a disturbance of intracellular trafficking processes, the latter depending on the interaction of the vector surface with the cellular transport machinery. A solution might be the development of bioresponsive shields that are stably maintained outside the host cell but released upon cell entry to allow for efficient gene delivery to the nucleus. Here we provide a systematic comparison of irreversible versus bioresponsive shields based on synthetic N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers. In addition, the chemical strategy used for generation of the shield allowed for a traceless bioresponsive shielding, i.e., polymers could be released from the vector particles without leaving residual linker residues. Our data demonstrated that only a bioresponsive shield maintained the high gene transfer efficiency of adenovirus vectors both in vitro and in vivo. As an example for bioresponsive HPMA copolymer release, we analyzed the in vivo gene transfer in the liver. We demonstrated that both the copolymer's charge and the mode of shielding (irreversible versus traceless bioresponsive) profoundly affected liver gene transfer and that traceless bioresponsive shielding with positively charged HPMA copolymers mediated FX independent transduction of hepatocytes. In addition, we demonstrated that shielding with HPMA copolymers can mediate a prolonged blood circulation of vector particles in mice. Our results have significant implications for the future design of polymer-shielded Ad and provide a deeper insight into the interaction of shielded adenovirus vector particles with the host after systemic delivery.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>24475024</pmid><doi>10.1371/journal.pone.0082716</doi><tpages>e82716</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 1932-6203 |
| ispartof | PloS one, 2014-01, Vol.9 (1), p.e82716-e82716 |
| issn | 1932-6203 1932-6203 |
| language | eng |
| recordid | cdi_plos_journals_1492015319 |
| source | MEDLINE; DOAJ Directory of Open Access Journals; Public Library of Science (PLoS) Journals Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Adenoviruses Animals Biology Blood circulation Blotting, Western Capsid Proteins - metabolism Chemical bonds Copolymers Expression vectors Female Fluorometry Gene therapy Gene transfer Gene Transfer Techniques Genetic Vectors - genetics Genetic Vectors - metabolism Heparan sulfate Hepatocytes Immunoglobulins Immunohistochemistry Liver Machinery and equipment Medicine Methacrylamide Methacrylates - chemistry Methacrylates - metabolism Mice Mice, Inbred BALB C Microscopy, Confocal Molecular Structure Nuclei Nuclei (cytology) Organic Chemicals Polymerase Chain Reaction Polymers Proteins Shielding Shields Signal Transduction - physiology Statistics, Nonparametric Vectors (Biology) |
| title | Traceless bioresponsive shielding of adenovirus hexon with HPMA copolymers maintains transduction capacity in vitro and in vivo |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-26T16%3A15%3A01IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Traceless%20bioresponsive%20shielding%20of%20adenovirus%20hexon%20with%20HPMA%20copolymers%20maintains%20transduction%20capacity%20in%20vitro%20and%20in%20vivo&rft.jtitle=PloS%20one&rft.au=Prill,%20Jan-Michael&rft.date=2014-01-27&rft.volume=9&rft.issue=1&rft.spage=e82716&rft.epage=e82716&rft.pages=e82716-e82716&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0082716&rft_dat=%3Cgale_plos_%3EA478845494%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1492015319&rft_id=info:pmid/24475024&rft_galeid=A478845494&rft_doaj_id=oai_doaj_org_article_42591f8d4d6a46c1900a5d7a74ce25ff&rfr_iscdi=true |