The AAV capsid can influence the epigenetic marking of rAAV delivered episomal genomes in a species dependent manner
Abstract Recombinant adeno-associated viral vectors (rAAVs) are among the most commonly used vehicles for in vivo based gene therapies. However, it is hard to predict which AAV capsid will provide the most robust expression in human subjects due to the observed discordance in vector-mediated transdu...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-38106-3 |
| _version_ | 1797836444563144704 |
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| author | Adriana Gonzalez-Sandoval Katja Pekrun Shinnosuke Tsuji Feijie Zhang King L. Hung Howard Y. Chang Mark A. Kay |
| author_facet | Adriana Gonzalez-Sandoval Katja Pekrun Shinnosuke Tsuji Feijie Zhang King L. Hung Howard Y. Chang Mark A. Kay |
| author_sort | Adriana Gonzalez-Sandoval |
| collection | DOAJ |
| description | Abstract Recombinant adeno-associated viral vectors (rAAVs) are among the most commonly used vehicles for in vivo based gene therapies. However, it is hard to predict which AAV capsid will provide the most robust expression in human subjects due to the observed discordance in vector-mediated transduction between species. In our study, we use a primate specific capsid, AAV-LK03, to demonstrate that the limitation of this capsid towards transduction of mouse cells is unrelated to cell entry and nuclear transport but rather due to depleted histone H3 chemical modifications related to active transcription, namely H3K4me3 and H3K27ac, on the vector DNA itself. A single-amino acid insertion into the AAV-LK03 capsid enables efficient transduction and the accumulation of active-related epigenetic marks on the vector chromatin in mouse without compromising transduction efficiency in human cells. Our study suggests that the capsid protein itself is involved in driving the epigenetic status of the vector genome, most likely during the process of uncoating. Programming viral chromatin states by capsid design may enable facile DNA transduction between vector and host species and ultimately lead to rational selection of AAV capsids for use in humans. |
| first_indexed | 2024-04-09T15:09:00Z |
| format | Article |
| id | doaj.art-d62aaf6b8f6e41b794d5bf3b8b68ef81 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-09T15:09:00Z |
| publishDate | 2023-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-d62aaf6b8f6e41b794d5bf3b8b68ef812023-04-30T11:20:12ZengNature PortfolioNature Communications2041-17232023-04-0114111110.1038/s41467-023-38106-3The AAV capsid can influence the epigenetic marking of rAAV delivered episomal genomes in a species dependent mannerAdriana Gonzalez-Sandoval0Katja Pekrun1Shinnosuke Tsuji2Feijie Zhang3King L. Hung4Howard Y. Chang5Mark A. Kay6Department of Pediatrics, Stanford UniversityDepartment of Pediatrics, Stanford UniversityDepartment of Pediatrics, Stanford UniversityDepartment of Pediatrics, Stanford UniversityDepartment of Dermatology, Stanford UniversityDepartment of Dermatology, Stanford UniversityDepartment of Pediatrics, Stanford UniversityAbstract Recombinant adeno-associated viral vectors (rAAVs) are among the most commonly used vehicles for in vivo based gene therapies. However, it is hard to predict which AAV capsid will provide the most robust expression in human subjects due to the observed discordance in vector-mediated transduction between species. In our study, we use a primate specific capsid, AAV-LK03, to demonstrate that the limitation of this capsid towards transduction of mouse cells is unrelated to cell entry and nuclear transport but rather due to depleted histone H3 chemical modifications related to active transcription, namely H3K4me3 and H3K27ac, on the vector DNA itself. A single-amino acid insertion into the AAV-LK03 capsid enables efficient transduction and the accumulation of active-related epigenetic marks on the vector chromatin in mouse without compromising transduction efficiency in human cells. Our study suggests that the capsid protein itself is involved in driving the epigenetic status of the vector genome, most likely during the process of uncoating. Programming viral chromatin states by capsid design may enable facile DNA transduction between vector and host species and ultimately lead to rational selection of AAV capsids for use in humans.https://doi.org/10.1038/s41467-023-38106-3 |
| spellingShingle | Adriana Gonzalez-Sandoval Katja Pekrun Shinnosuke Tsuji Feijie Zhang King L. Hung Howard Y. Chang Mark A. Kay The AAV capsid can influence the epigenetic marking of rAAV delivered episomal genomes in a species dependent manner Nature Communications |
| title | The AAV capsid can influence the epigenetic marking of rAAV delivered episomal genomes in a species dependent manner |
| title_full | The AAV capsid can influence the epigenetic marking of rAAV delivered episomal genomes in a species dependent manner |
| title_fullStr | The AAV capsid can influence the epigenetic marking of rAAV delivered episomal genomes in a species dependent manner |
| title_full_unstemmed | The AAV capsid can influence the epigenetic marking of rAAV delivered episomal genomes in a species dependent manner |
| title_short | The AAV capsid can influence the epigenetic marking of rAAV delivered episomal genomes in a species dependent manner |
| title_sort | aav capsid can influence the epigenetic marking of raav delivered episomal genomes in a species dependent manner |
| url | https://doi.org/10.1038/s41467-023-38106-3 |
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