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spelling Structural variants create new topological-associated domains and ectopic retinal enhancer-gene contact in dominant retinitis pigmentosaWhole-genome sequencingDominant retinitis pigmentosaRP17Structural variantsEctopic expressionStem cellsRetinal organoidsPhotoreceptor precursors cellsHi-CTopologically associated domainsGDPD© 2020 The Authors. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)The cause of autosomal-dominant retinitis pigmentosa (adRP), which leads to loss of vision and blindness, was investigated in families lacking a molecular diagnosis. A refined locus for adRP on Chr17q22 (RP17) was delineated through genotyping and genome sequencing, leading to the identification of structural variants (SVs) that segregate with disease. Eight different complex SVs were characterized in 22 adRP-affected families with >300 affected individuals. All RP17 SVs had breakpoints within a genomic region spanning YPEL2 to LINC01476. To investigate the mechanism of disease, we reprogrammed fibroblasts from affected individuals and controls into induced pluripotent stem cells (iPSCs) and differentiated them into photoreceptor precursor cells (PPCs) or retinal organoids (ROs). Hi-C was performed on ROs, and differential expression of regional genes and a retinal enhancer RNA at this locus was assessed by qPCR. The epigenetic landscape of the region, and Hi-C RO data, showed that YPEL2 sits within its own topologically associating domain (TAD), rich in enhancers with binding sites for retinal transcription factors. The Hi-C map of RP17 ROs revealed creation of a neo-TAD with ectopic contacts between GDPD1 and retinal enhancers, and modeling of all RP17 SVs was consistent with neo-TADs leading to ectopic retinal-specific enhancer-GDPD1 accessibility. qPCR confirmed increased expression of GDPD1 and increased expression of the retinal enhancer that enters the neo-TAD. Altered TAD structure resulting in increased retinal expression of GDPD1 is the likely convergent mechanism of disease, consistent with a dominant gain of function. Our study highlights the importance of SVs as a genomic mechanism in unsolved Mendelian diseases.ElsevierRepositório da Universidade de Lisboade Bruijn, Suzanne E.Fiorentino, AlessiaOttaviani, DanieleFanucchi, StephanieMelo, Uirá S.Corral-Serrano, Julio C.Mulders, TimoGeorgiou, MichalisRivolta, CarloPontikos, NikolasArno, GavinRoberts, LisaGreenberg, JacquieAlbert, SilviaGilissen, ChristianAben, MarcoRebello, GeorgeMead, SimonRaymond, F. LucyCorominas, JordiSmith, Claire E. L.Kremer, HannieDownes, SusanBlack, Graeme C.Webster, Andrew R.Inglehearn, Chris F.van den Born, L. IngeborghKoenekoop, Robert K.Michaelides, MichelRamesar, Raj S.Hoyng, Carel B.Mundlos, StefanMhlanga, MusaCremers, Frans P. M.Cheetham, Michael E.Roosing, SusanneHardcastle, Alison J.2021-02-11T13:36:31Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/46284engAm J Hum Genet. 2020 Nov 5;107(5):802-8140002-929710.1016/j.ajhg.2020.09.0021537-6605info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-11-20T18:03:22Zoai:repositorio.ul.pt:10451/46284Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-11-20T18:03:22Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Structural variants create new topological-associated domains and ectopic retinal enhancer-gene contact in dominant retinitis pigmentosa
title Structural variants create new topological-associated domains and ectopic retinal enhancer-gene contact in dominant retinitis pigmentosa
spellingShingle Structural variants create new topological-associated domains and ectopic retinal enhancer-gene contact in dominant retinitis pigmentosa
de Bruijn, Suzanne E.
Whole-genome sequencing
Dominant retinitis pigmentosa
RP17
Structural variants
Ectopic expression
Stem cells
Retinal organoids
Photoreceptor precursors cells
Hi-C
Topologically associated domains
GDPD
title_short Structural variants create new topological-associated domains and ectopic retinal enhancer-gene contact in dominant retinitis pigmentosa
title_full Structural variants create new topological-associated domains and ectopic retinal enhancer-gene contact in dominant retinitis pigmentosa
title_fullStr Structural variants create new topological-associated domains and ectopic retinal enhancer-gene contact in dominant retinitis pigmentosa
title_full_unstemmed Structural variants create new topological-associated domains and ectopic retinal enhancer-gene contact in dominant retinitis pigmentosa
title_sort Structural variants create new topological-associated domains and ectopic retinal enhancer-gene contact in dominant retinitis pigmentosa
author de Bruijn, Suzanne E.
author_facet de Bruijn, Suzanne E.
Fiorentino, Alessia
Ottaviani, Daniele
Fanucchi, Stephanie
Melo, Uirá S.
Corral-Serrano, Julio C.
Mulders, Timo
Georgiou, Michalis
Rivolta, Carlo
Pontikos, Nikolas
Arno, Gavin
Roberts, Lisa
Greenberg, Jacquie
Albert, Silvia
Gilissen, Christian
Aben, Marco
Rebello, George
Mead, Simon
Raymond, F. Lucy
Corominas, Jordi
Smith, Claire E. L.
Kremer, Hannie
Downes, Susan
Black, Graeme C.
Webster, Andrew R.
Inglehearn, Chris F.
van den Born, L. Ingeborgh
Koenekoop, Robert K.
Michaelides, Michel
Ramesar, Raj S.
Hoyng, Carel B.
Mundlos, Stefan
Mhlanga, Musa
Cremers, Frans P. M.
Cheetham, Michael E.
Roosing, Susanne
Hardcastle, Alison J.
author_role author
author2 Fiorentino, Alessia
Ottaviani, Daniele
Fanucchi, Stephanie
Melo, Uirá S.
Corral-Serrano, Julio C.
Mulders, Timo
Georgiou, Michalis
Rivolta, Carlo
Pontikos, Nikolas
Arno, Gavin
Roberts, Lisa
Greenberg, Jacquie
Albert, Silvia
Gilissen, Christian
Aben, Marco
Rebello, George
Mead, Simon
Raymond, F. Lucy
Corominas, Jordi
Smith, Claire E. L.
Kremer, Hannie
Downes, Susan
Black, Graeme C.
Webster, Andrew R.
Inglehearn, Chris F.
van den Born, L. Ingeborgh
Koenekoop, Robert K.
Michaelides, Michel
Ramesar, Raj S.
Hoyng, Carel B.
Mundlos, Stefan
Mhlanga, Musa
Cremers, Frans P. M.
Cheetham, Michael E.
Roosing, Susanne
Hardcastle, Alison J.
author2_role author
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author
author
author
author
author
author
author
author
author
author
author
author
author
author
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dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv de Bruijn, Suzanne E.
Fiorentino, Alessia
Ottaviani, Daniele
Fanucchi, Stephanie
Melo, Uirá S.
Corral-Serrano, Julio C.
Mulders, Timo
Georgiou, Michalis
Rivolta, Carlo
Pontikos, Nikolas
Arno, Gavin
Roberts, Lisa
Greenberg, Jacquie
Albert, Silvia
Gilissen, Christian
Aben, Marco
Rebello, George
Mead, Simon
Raymond, F. Lucy
Corominas, Jordi
Smith, Claire E. L.
Kremer, Hannie
Downes, Susan
Black, Graeme C.
Webster, Andrew R.
Inglehearn, Chris F.
van den Born, L. Ingeborgh
Koenekoop, Robert K.
Michaelides, Michel
Ramesar, Raj S.
Hoyng, Carel B.
Mundlos, Stefan
Mhlanga, Musa
Cremers, Frans P. M.
Cheetham, Michael E.
Roosing, Susanne
Hardcastle, Alison J.
dc.subject.por.fl_str_mv Whole-genome sequencing
Dominant retinitis pigmentosa
RP17
Structural variants
Ectopic expression
Stem cells
Retinal organoids
Photoreceptor precursors cells
Hi-C
Topologically associated domains
GDPD
topic Whole-genome sequencing
Dominant retinitis pigmentosa
RP17
Structural variants
Ectopic expression
Stem cells
Retinal organoids
Photoreceptor precursors cells
Hi-C
Topologically associated domains
GDPD
description © 2020 The Authors. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-01-01T00:00:00Z
2021-02-11T13:36:31Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10451/46284
url http://hdl.handle.net/10451/46284
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Am J Hum Genet. 2020 Nov 5;107(5):802-814
0002-9297
10.1016/j.ajhg.2020.09.002
1537-6605
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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