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Dominant cone-rod dystrophy: a mouse model generated by gene targeting of the GCAP1/Guca1a gene
Cone dystrophy 3 (COD3) is a severe dominantly inherited retinal degeneration caused by missense mutations in GUCA1A, the gene encoding Guanylate Cyclase Activating Protein 1 (GCAP1). The role of GCAP1 in controlling cyclic nucleotide levels in photoreceptors has largely been elucidated using knock-...
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Published in: | PloS one 2011-03, Vol.6 (3), p.e18089 |
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description | Cone dystrophy 3 (COD3) is a severe dominantly inherited retinal degeneration caused by missense mutations in GUCA1A, the gene encoding Guanylate Cyclase Activating Protein 1 (GCAP1). The role of GCAP1 in controlling cyclic nucleotide levels in photoreceptors has largely been elucidated using knock-out mice, but the disease pathology in these mice cannot be extrapolated directly to COD3 as this involves altered, rather than loss of, GCAP1 function. Therefore, in order to evaluate the pathology of this dominant disorder, we have introduced a point mutation into the murine Guca1a gene that causes an E155G amino acid substitution; this is one of the disease-causing mutations found in COD3 patients. Disease progression in this novel mouse model of cone dystrophy was determined by a variety of techniques including electroretinography (ERG), retinal histology, immunohistochemistry and measurement of cGMP levels. It was established that although retinal development was normal up to 3 months of age, there was a subsequent progressive decline in retinal function, with a far greater alteration in cone than rod responses, associated with a corresponding loss of photoreceptors. In addition, we have demonstrated that accumulation of cyclic GMP precedes the observed retinal degeneration and is likely to contribute to the disease mechanism. Importantly, this knock-in mutant mouse has many features in common with the human disease, thereby making it an excellent model to further probe disease pathogenesis and investigate therapeutic interventions. |
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The role of GCAP1 in controlling cyclic nucleotide levels in photoreceptors has largely been elucidated using knock-out mice, but the disease pathology in these mice cannot be extrapolated directly to COD3 as this involves altered, rather than loss of, GCAP1 function. Therefore, in order to evaluate the pathology of this dominant disorder, we have introduced a point mutation into the murine Guca1a gene that causes an E155G amino acid substitution; this is one of the disease-causing mutations found in COD3 patients. Disease progression in this novel mouse model of cone dystrophy was determined by a variety of techniques including electroretinography (ERG), retinal histology, immunohistochemistry and measurement of cGMP levels. It was established that although retinal development was normal up to 3 months of age, there was a subsequent progressive decline in retinal function, with a far greater alteration in cone than rod responses, associated with a corresponding loss of photoreceptors. In addition, we have demonstrated that accumulation of cyclic GMP precedes the observed retinal degeneration and is likely to contribute to the disease mechanism. Importantly, this knock-in mutant mouse has many features in common with the human disease, thereby making it an excellent model to further probe disease pathogenesis and investigate therapeutic interventions.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0018089</identifier><identifier>PMID: 21464903</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Amino acid substitution ; Analysis ; Animals ; Apoptosis ; Asymptomatic Diseases ; Biology ; Congenital diseases ; Cyclic GMP ; Cyclic GMP - metabolism ; Cyclic guanosine monophosphate ; Defects ; Degeneration ; Disease Models, Animal ; Dystrophy ; Electroretinograms ; Electroretinography ; Gene expression ; Gene Knock-In Techniques ; Gene mutation ; Gene Targeting ; Genes ; Genes, Dominant - genetics ; Genetic aspects ; Guanylate cyclase ; Guanylate Cyclase-Activating Proteins - genetics ; Guanylate Cyclase-Activating Proteins - metabolism ; Hereditary diseases ; Histology ; House mouse ; Humans ; Immunohistochemistry ; Intracellular Space - metabolism ; Kinetics ; Medicine ; Mice ; Missense mutation ; Mutant Proteins - genetics ; Mutant Proteins - metabolism ; Mutation ; Mutation - genetics ; Pathogenesis ; Pathology ; Permeability ; Photoreception ; Photoreceptors ; Point mutation ; Proteins ; Retina ; Retinal Cone Photoreceptor Cells - metabolism ; Retinal Cone Photoreceptor Cells - pathology ; Retinal degeneration ; Retinal Rod Photoreceptor Cells - metabolism ; Retinal Rod Photoreceptor Cells - pathology ; Retinitis Pigmentosa - genetics ; Retinitis Pigmentosa - physiopathology ; Rodents ; Therapeutic applications ; University colleges</subject><ispartof>PloS one, 2011-03, Vol.6 (3), p.e18089</ispartof><rights>COPYRIGHT 2011 Public Library of Science</rights><rights>2011 Buch et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://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>Buch et al. 2011</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c691t-b6734b46ba9f44ce05ee9df0f9597e1873c0b4a56ab40e3ca47d5d03dd75cb653</citedby><cites>FETCH-LOGICAL-c691t-b6734b46ba9f44ce05ee9df0f9597e1873c0b4a56ab40e3ca47d5d03dd75cb653</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/1292443152/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/1292443152?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,25753,27924,27925,37012,37013,44590,53791,53793,75126</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21464903$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Bartell, Paul</contributor><creatorcontrib>Buch, Prateek K</creatorcontrib><creatorcontrib>Mihelec, Marija</creatorcontrib><creatorcontrib>Cottrill, Phillippa</creatorcontrib><creatorcontrib>Wilkie, Susan E</creatorcontrib><creatorcontrib>Pearson, Rachael A</creatorcontrib><creatorcontrib>Duran, Yanai</creatorcontrib><creatorcontrib>West, Emma L</creatorcontrib><creatorcontrib>Michaelides, Michel</creatorcontrib><creatorcontrib>Ali, Robin R</creatorcontrib><creatorcontrib>Hunt, David M</creatorcontrib><title>Dominant cone-rod dystrophy: a mouse model generated by gene targeting of the GCAP1/Guca1a gene</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Cone dystrophy 3 (COD3) is a severe dominantly inherited retinal degeneration caused by missense mutations in GUCA1A, the gene encoding Guanylate Cyclase Activating Protein 1 (GCAP1). The role of GCAP1 in controlling cyclic nucleotide levels in photoreceptors has largely been elucidated using knock-out mice, but the disease pathology in these mice cannot be extrapolated directly to COD3 as this involves altered, rather than loss of, GCAP1 function. Therefore, in order to evaluate the pathology of this dominant disorder, we have introduced a point mutation into the murine Guca1a gene that causes an E155G amino acid substitution; this is one of the disease-causing mutations found in COD3 patients. Disease progression in this novel mouse model of cone dystrophy was determined by a variety of techniques including electroretinography (ERG), retinal histology, immunohistochemistry and measurement of cGMP levels. It was established that although retinal development was normal up to 3 months of age, there was a subsequent progressive decline in retinal function, with a far greater alteration in cone than rod responses, associated with a corresponding loss of photoreceptors. In addition, we have demonstrated that accumulation of cyclic GMP precedes the observed retinal degeneration and is likely to contribute to the disease mechanism. 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genetics</subject><subject>Guanylate Cyclase-Activating Proteins - metabolism</subject><subject>Hereditary diseases</subject><subject>Histology</subject><subject>House mouse</subject><subject>Humans</subject><subject>Immunohistochemistry</subject><subject>Intracellular Space - metabolism</subject><subject>Kinetics</subject><subject>Medicine</subject><subject>Mice</subject><subject>Missense mutation</subject><subject>Mutant Proteins - genetics</subject><subject>Mutant Proteins - metabolism</subject><subject>Mutation</subject><subject>Mutation - genetics</subject><subject>Pathogenesis</subject><subject>Pathology</subject><subject>Permeability</subject><subject>Photoreception</subject><subject>Photoreceptors</subject><subject>Point mutation</subject><subject>Proteins</subject><subject>Retina</subject><subject>Retinal Cone Photoreceptor Cells - metabolism</subject><subject>Retinal Cone Photoreceptor Cells - pathology</subject><subject>Retinal degeneration</subject><subject>Retinal Rod Photoreceptor Cells - metabolism</subject><subject>Retinal Rod Photoreceptor Cells - pathology</subject><subject>Retinitis Pigmentosa - genetics</subject><subject>Retinitis Pigmentosa - physiopathology</subject><subject>Rodents</subject><subject>Therapeutic applications</subject><subject>University colleges</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNqNk12L1DAUhoso7rr6D0QLguLFzCZNmiZeCMOo48DCil-3IU1OO13aZkxScf69mZnuMpW9kEA-Tp7znuQkJ0meYzTHpMCXN3ZwvWrnW9vDHCHMERcPknMsSDZjGSIPT-ZnyRPvbxDKCWfscXKWYcqoQOQ8kR9s1_SqD6mOOjNnTWp2Pji73ezepSrt7OAh9gbatIYenApg0nJ3WKRBuRpC09eprdKwgXS1XHzBl6tBK6wOyNPkUaVaD8_G8SL58enj9-Xn2dX1ar1cXM00EzjMSlYQWlJWKlFRqgHlAMJUqBK5KADzgmhUUpUzVVIERCtamNwgYkyR65Ll5CJ5edTdttbLMTde4kxklBKcZ5FYHwlj1Y3cuqZTbietauTBYF0tlQuNbkESlnOTlwawyajARBQ041xzhvJCU1JFrfdjtKHswGjog1PtRHS60zcbWdvfkiCWUy6iwJtRwNlfA_ggu8ZraFvVQ8y4jKGI4LygkXz1D3n_5UaqVvH8TV_ZGFbvNeWCFowLQQseqfk9VGwGumb__lUT7ROHtxOHyAT4E2o1eC_X377-P3v9c8q-PmE3oNqw8bYdQmN7PwXpEdTOeu-gussxRnJfBrfZkPsykGMZRLcXp-9z53T778lfDVgBGA</recordid><startdate>20110328</startdate><enddate>20110328</enddate><creator>Buch, Prateek K</creator><creator>Mihelec, Marija</creator><creator>Cottrill, Phillippa</creator><creator>Wilkie, Susan E</creator><creator>Pearson, Rachael A</creator><creator>Duran, Yanai</creator><creator>West, Emma L</creator><creator>Michaelides, Michel</creator><creator>Ali, Robin R</creator><creator>Hunt, David M</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</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>IOV</scope><scope>ISR</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope></search><sort><creationdate>20110328</creationdate><title>Dominant cone-rod dystrophy: a mouse model generated by gene targeting of the GCAP1/Guca1a gene</title><author>Buch, Prateek K ; Mihelec, Marija ; Cottrill, Phillippa ; Wilkie, Susan E ; Pearson, Rachael A ; Duran, Yanai ; West, Emma L ; Michaelides, Michel ; Ali, Robin R ; Hunt, David M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c691t-b6734b46ba9f44ce05ee9df0f9597e1873c0b4a56ab40e3ca47d5d03dd75cb653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Amino acid substitution</topic><topic>Analysis</topic><topic>Animals</topic><topic>Apoptosis</topic><topic>Asymptomatic Diseases</topic><topic>Biology</topic><topic>Congenital diseases</topic><topic>Cyclic GMP</topic><topic>Cyclic GMP - 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Buch, Prateek K</au><au>Mihelec, Marija</au><au>Cottrill, Phillippa</au><au>Wilkie, Susan E</au><au>Pearson, Rachael A</au><au>Duran, Yanai</au><au>West, Emma L</au><au>Michaelides, Michel</au><au>Ali, Robin R</au><au>Hunt, David M</au><au>Bartell, Paul</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dominant cone-rod dystrophy: a mouse model generated by gene targeting of the GCAP1/Guca1a gene</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2011-03-28</date><risdate>2011</risdate><volume>6</volume><issue>3</issue><spage>e18089</spage><pages>e18089-</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Cone dystrophy 3 (COD3) is a severe dominantly inherited retinal degeneration caused by missense mutations in GUCA1A, the gene encoding Guanylate Cyclase Activating Protein 1 (GCAP1). The role of GCAP1 in controlling cyclic nucleotide levels in photoreceptors has largely been elucidated using knock-out mice, but the disease pathology in these mice cannot be extrapolated directly to COD3 as this involves altered, rather than loss of, GCAP1 function. Therefore, in order to evaluate the pathology of this dominant disorder, we have introduced a point mutation into the murine Guca1a gene that causes an E155G amino acid substitution; this is one of the disease-causing mutations found in COD3 patients. Disease progression in this novel mouse model of cone dystrophy was determined by a variety of techniques including electroretinography (ERG), retinal histology, immunohistochemistry and measurement of cGMP levels. It was established that although retinal development was normal up to 3 months of age, there was a subsequent progressive decline in retinal function, with a far greater alteration in cone than rod responses, associated with a corresponding loss of photoreceptors. In addition, we have demonstrated that accumulation of cyclic GMP precedes the observed retinal degeneration and is likely to contribute to the disease mechanism. Importantly, this knock-in mutant mouse has many features in common with the human disease, thereby making it an excellent model to further probe disease pathogenesis and investigate therapeutic interventions.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>21464903</pmid><doi>10.1371/journal.pone.0018089</doi><tpages>e18089</tpages><oa>free_for_read</oa></addata></record> |
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source | Publicly Available Content Database; PubMed Central |
subjects | Amino acid substitution Analysis Animals Apoptosis Asymptomatic Diseases Biology Congenital diseases Cyclic GMP Cyclic GMP - metabolism Cyclic guanosine monophosphate Defects Degeneration Disease Models, Animal Dystrophy Electroretinograms Electroretinography Gene expression Gene Knock-In Techniques Gene mutation Gene Targeting Genes Genes, Dominant - genetics Genetic aspects Guanylate cyclase Guanylate Cyclase-Activating Proteins - genetics Guanylate Cyclase-Activating Proteins - metabolism Hereditary diseases Histology House mouse Humans Immunohistochemistry Intracellular Space - metabolism Kinetics Medicine Mice Missense mutation Mutant Proteins - genetics Mutant Proteins - metabolism Mutation Mutation - genetics Pathogenesis Pathology Permeability Photoreception Photoreceptors Point mutation Proteins Retina Retinal Cone Photoreceptor Cells - metabolism Retinal Cone Photoreceptor Cells - pathology Retinal degeneration Retinal Rod Photoreceptor Cells - metabolism Retinal Rod Photoreceptor Cells - pathology Retinitis Pigmentosa - genetics Retinitis Pigmentosa - physiopathology Rodents Therapeutic applications University colleges |
title | Dominant cone-rod dystrophy: a mouse model generated by gene targeting of the GCAP1/Guca1a gene |
url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T14%3A00%3A18IST&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=Dominant%20cone-rod%20dystrophy:%20a%20mouse%20model%20generated%20by%20gene%20targeting%20of%20the%20GCAP1/Guca1a%20gene&rft.jtitle=PloS%20one&rft.au=Buch,%20Prateek%20K&rft.date=2011-03-28&rft.volume=6&rft.issue=3&rft.spage=e18089&rft.pages=e18089-&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0018089&rft_dat=%3Cgale_plos_%3EA476899478%3C/gale_plos_%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c691t-b6734b46ba9f44ce05ee9df0f9597e1873c0b4a56ab40e3ca47d5d03dd75cb653%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1292443152&rft_id=info:pmid/21464903&rft_galeid=A476899478&rfr_iscdi=true |