Self-complementary AAV Virus (scAAV) Safe and Long-term Gene Transfer in the Trabecular Meshwork of Living Rats and Monkeys
AAV vectors produce stable transgene expression and elicit low immune response in many tissues. AAVs have been the vectors of choice for gene therapy for the eye, in particular the retina. scAAVs are modified AAVs that bypass the required second-strand DNA synthesis to achieve transcription of the t...
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| Veröffentlicht in: | Investigative ophthalmology & visual science 2010-01, Vol.51 (1), p.236-248 |
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| creator | Buie, LaKisha K Rasmussen, Carol A Porterfield, Eric C Ramgolam, Vinod S Choi, Vivian W Markovic-Plese, Silva Samulski, Richard J Kaufman, Paul L Borras, Teresa |
| description | AAV vectors produce stable transgene expression and elicit low immune response in many tissues. AAVs have been the vectors of choice for gene therapy for the eye, in particular the retina. scAAVs are modified AAVs that bypass the required second-strand DNA synthesis to achieve transcription of the transgene. The goal was to investigate the ability of AAV vectors to induce long-term, safe delivery of transgenes to the trabecular meshwork of living animals.
Single doses of AAV2.GFP and AAV2.RGD.GFP/Ad5.LacZ were injected intracamerally (IC) into rats (n = 28 eyes). A single dose of scAAV.GFP was IC-injected into rats (n = 72 eyes) and cynomolgus monkeys (n = 3). GFP expression was evaluated by fluorescence, immunohistochemistry, and noninvasive gonioscopy. Intraocular pressure (IOP) was measured with calibrated tonometer (rats) and Goldmann tonometer (monkeys). Differential expression of scAAV-infected human trabecular meshwork cells (HTM) was determined by microarrays. Humoral and cell-mediated immune responses were evaluated by ELISA and peripheral blood proliferation assays.
No GFP transduction was observed on the anterior segment tissues of AAV-injected rats up to 27 days after injection. In contrast, scAAV2 transduced the trabecular meshwork very efficiently, with a fast onset (4 days). Eyes remained clear and no adverse effects were observed. Transgene expression lasted >3.5 months in rats and >2.35 years in monkeys.
The scAAV viral vector provides prolonged and safe transduction in the trabecular meshwork of rats and monkeys. The stable expression and safe properties of this vector could facilitate the development of trabecular meshwork drugs for gene therapy for glaucoma. |
| doi_str_mv | 10.1167/iovs.09-3847 |
| format | Article |
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Single doses of AAV2.GFP and AAV2.RGD.GFP/Ad5.LacZ were injected intracamerally (IC) into rats (n = 28 eyes). A single dose of scAAV.GFP was IC-injected into rats (n = 72 eyes) and cynomolgus monkeys (n = 3). GFP expression was evaluated by fluorescence, immunohistochemistry, and noninvasive gonioscopy. Intraocular pressure (IOP) was measured with calibrated tonometer (rats) and Goldmann tonometer (monkeys). Differential expression of scAAV-infected human trabecular meshwork cells (HTM) was determined by microarrays. Humoral and cell-mediated immune responses were evaluated by ELISA and peripheral blood proliferation assays.
No GFP transduction was observed on the anterior segment tissues of AAV-injected rats up to 27 days after injection. In contrast, scAAV2 transduced the trabecular meshwork very efficiently, with a fast onset (4 days). Eyes remained clear and no adverse effects were observed. Transgene expression lasted >3.5 months in rats and >2.35 years in monkeys.
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Single doses of AAV2.GFP and AAV2.RGD.GFP/Ad5.LacZ were injected intracamerally (IC) into rats (n = 28 eyes). A single dose of scAAV.GFP was IC-injected into rats (n = 72 eyes) and cynomolgus monkeys (n = 3). GFP expression was evaluated by fluorescence, immunohistochemistry, and noninvasive gonioscopy. Intraocular pressure (IOP) was measured with calibrated tonometer (rats) and Goldmann tonometer (monkeys). Differential expression of scAAV-infected human trabecular meshwork cells (HTM) was determined by microarrays. Humoral and cell-mediated immune responses were evaluated by ELISA and peripheral blood proliferation assays.
No GFP transduction was observed on the anterior segment tissues of AAV-injected rats up to 27 days after injection. In contrast, scAAV2 transduced the trabecular meshwork very efficiently, with a fast onset (4 days). Eyes remained clear and no adverse effects were observed. Transgene expression lasted >3.5 months in rats and >2.35 years in monkeys.
The scAAV viral vector provides prolonged and safe transduction in the trabecular meshwork of rats and monkeys. The stable expression and safe properties of this vector could facilitate the development of trabecular meshwork drugs for gene therapy for glaucoma.</description><subject>Animals</subject><subject>Dependovirus - genetics</subject><subject>Enzyme-Linked Immunosorbent Assay</subject><subject>Female</subject><subject>Fluorescein Angiography</subject><subject>Fluorescent Antibody Technique, Indirect</subject><subject>Gene Expression</subject><subject>Gene Transfer Techniques</subject><subject>Genetic Vectors</subject><subject>Gonioscopy</subject><subject>Green Fluorescent Proteins - genetics</subject><subject>Intraocular Pressure</subject><subject>Macaca fascicularis</subject><subject>Male</subject><subject>Oligonucleotide Array Sequence Analysis</subject><subject>Rats</subject><subject>Rats, Inbred BN</subject><subject>Rats, Wistar</subject><subject>Reverse Transcriptase Polymerase Chain Reaction</subject><subject>Tonometry, Ocular</subject><subject>Trabecular Meshwork - metabolism</subject><subject>Transduction, Genetic</subject><issn>0146-0404</issn><issn>1552-5783</issn><issn>1552-5783</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpVkc1v1DAQxS0Eokvhxhn5ggCJFDt2nPiCtKqgIG2FREuvluOMd00Te2snG1X883i7Kz5Oo5n56c08PYReUnJGqag_uLBLZ0QWrOH1I7SgVVUWVd2wx2hBKBcF4YSfoGcp_SSkpLQkT9EJlaLhhPAF-nUFvS1MGLY9DOBHHe_xcnmDb1ycEn6bTG7e4SttAWvf4VXw62KEOOAL8ICvo_bJQsTO43Hz0Ldgpl5HfAlpM4d4i4PFK7dzfo2_6zE9qFwGfwv36Tl6YnWf4MWxnqIfnz9dn38pVt8uvp4vV4XhlI1FZ6QRjEpCBGPGZk-2sa0wTVVZkES2TJQVNW3bcq5pbVhr80i0nNRd3QnCTtHHg-52agfoTLYZda-20Q3Zrgraqf833m3UOuxU2QhJeJMF3hwFYribII1qcMlA32sPYUqqZkzWQsgyk-8PpIkhpQj2zxVK1D4utY9LEan2cWX81b-f_YWP-WTg9QHYuPVmdhFUGnTfZ5yqeZ4rqqgqmWC_AQo5n1I</recordid><startdate>20100101</startdate><enddate>20100101</enddate><creator>Buie, LaKisha K</creator><creator>Rasmussen, Carol A</creator><creator>Porterfield, Eric C</creator><creator>Ramgolam, Vinod S</creator><creator>Choi, Vivian W</creator><creator>Markovic-Plese, Silva</creator><creator>Samulski, Richard J</creator><creator>Kaufman, Paul L</creator><creator>Borras, Teresa</creator><general>ARVO</general><general>Association for Research in Vision and Ophthalmology, Inc</general><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>7X8</scope><scope>5PM</scope></search><sort><creationdate>20100101</creationdate><title>Self-complementary AAV Virus (scAAV) Safe and Long-term Gene Transfer in the Trabecular Meshwork of Living Rats and Monkeys</title><author>Buie, LaKisha K ; Rasmussen, Carol A ; Porterfield, Eric C ; Ramgolam, Vinod S ; Choi, Vivian W ; Markovic-Plese, Silva ; Samulski, Richard J ; Kaufman, Paul L ; Borras, Teresa</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c413t-dc9c631900633cf146f8fb6c855fe909b36251cbbb44a17c3bfb366b407d7d603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Animals</topic><topic>Dependovirus - genetics</topic><topic>Enzyme-Linked Immunosorbent Assay</topic><topic>Female</topic><topic>Fluorescein Angiography</topic><topic>Fluorescent Antibody Technique, Indirect</topic><topic>Gene Expression</topic><topic>Gene Transfer Techniques</topic><topic>Genetic Vectors</topic><topic>Gonioscopy</topic><topic>Green Fluorescent Proteins - genetics</topic><topic>Intraocular Pressure</topic><topic>Macaca fascicularis</topic><topic>Male</topic><topic>Oligonucleotide Array Sequence Analysis</topic><topic>Rats</topic><topic>Rats, Inbred BN</topic><topic>Rats, Wistar</topic><topic>Reverse Transcriptase Polymerase Chain Reaction</topic><topic>Tonometry, Ocular</topic><topic>Trabecular Meshwork - metabolism</topic><topic>Transduction, Genetic</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Buie, LaKisha K</creatorcontrib><creatorcontrib>Rasmussen, Carol A</creatorcontrib><creatorcontrib>Porterfield, Eric C</creatorcontrib><creatorcontrib>Ramgolam, Vinod S</creatorcontrib><creatorcontrib>Choi, Vivian W</creatorcontrib><creatorcontrib>Markovic-Plese, Silva</creatorcontrib><creatorcontrib>Samulski, Richard J</creatorcontrib><creatorcontrib>Kaufman, Paul L</creatorcontrib><creatorcontrib>Borras, Teresa</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Investigative ophthalmology & visual science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Buie, LaKisha K</au><au>Rasmussen, Carol A</au><au>Porterfield, Eric C</au><au>Ramgolam, Vinod S</au><au>Choi, Vivian W</au><au>Markovic-Plese, Silva</au><au>Samulski, Richard J</au><au>Kaufman, Paul L</au><au>Borras, Teresa</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Self-complementary AAV Virus (scAAV) Safe and Long-term Gene Transfer in the Trabecular Meshwork of Living Rats and Monkeys</atitle><jtitle>Investigative ophthalmology & visual science</jtitle><addtitle>Invest Ophthalmol Vis Sci</addtitle><date>2010-01-01</date><risdate>2010</risdate><volume>51</volume><issue>1</issue><spage>236</spage><epage>248</epage><pages>236-248</pages><issn>0146-0404</issn><issn>1552-5783</issn><eissn>1552-5783</eissn><abstract>AAV vectors produce stable transgene expression and elicit low immune response in many tissues. AAVs have been the vectors of choice for gene therapy for the eye, in particular the retina. scAAVs are modified AAVs that bypass the required second-strand DNA synthesis to achieve transcription of the transgene. The goal was to investigate the ability of AAV vectors to induce long-term, safe delivery of transgenes to the trabecular meshwork of living animals.
Single doses of AAV2.GFP and AAV2.RGD.GFP/Ad5.LacZ were injected intracamerally (IC) into rats (n = 28 eyes). A single dose of scAAV.GFP was IC-injected into rats (n = 72 eyes) and cynomolgus monkeys (n = 3). GFP expression was evaluated by fluorescence, immunohistochemistry, and noninvasive gonioscopy. Intraocular pressure (IOP) was measured with calibrated tonometer (rats) and Goldmann tonometer (monkeys). Differential expression of scAAV-infected human trabecular meshwork cells (HTM) was determined by microarrays. Humoral and cell-mediated immune responses were evaluated by ELISA and peripheral blood proliferation assays.
No GFP transduction was observed on the anterior segment tissues of AAV-injected rats up to 27 days after injection. In contrast, scAAV2 transduced the trabecular meshwork very efficiently, with a fast onset (4 days). Eyes remained clear and no adverse effects were observed. Transgene expression lasted >3.5 months in rats and >2.35 years in monkeys.
The scAAV viral vector provides prolonged and safe transduction in the trabecular meshwork of rats and monkeys. The stable expression and safe properties of this vector could facilitate the development of trabecular meshwork drugs for gene therapy for glaucoma.</abstract><cop>United States</cop><pub>ARVO</pub><pmid>19684004</pmid><doi>10.1167/iovs.09-3847</doi><tpages>13</tpages><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; EZB-FREE-00999 freely available EZB journals; PubMed Central |
| subjects | Animals Dependovirus - genetics Enzyme-Linked Immunosorbent Assay Female Fluorescein Angiography Fluorescent Antibody Technique, Indirect Gene Expression Gene Transfer Techniques Genetic Vectors Gonioscopy Green Fluorescent Proteins - genetics Intraocular Pressure Macaca fascicularis Male Oligonucleotide Array Sequence Analysis Rats Rats, Inbred BN Rats, Wistar Reverse Transcriptase Polymerase Chain Reaction Tonometry, Ocular Trabecular Meshwork - metabolism Transduction, Genetic |
| title | Self-complementary AAV Virus (scAAV) Safe and Long-term Gene Transfer in the Trabecular Meshwork of Living Rats and Monkeys |
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