Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis
- Autores
- Pavicic, Walter Hernan; Nieminen, Taina; Gylling, Annette; Pursiheimo, Juha Pekka; Laiho, Asta; Gyenesei, Attila; Järvinen, Heikki J.; Peltomäki, Paivi
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In familial adenomatous polyposis (FAP), 20% of classical and 70% of attenuated/atypical (AFAP) cases remain mutation-negative after routine testing; yet, allelic expression imbalance may suggest an APC alteration. Our aim was to determine the proportion of families attributable to genetic or epigenetic changes in the APC promoter region. We studied 51 unrelated families/cases (26 with classical FAP and 25 with AFAP) with no point mutations in the exons and exon/intron borders and no rearrangements by multiplex ligation-dependent probe amplification (MLPA, P043-B1). Promoter-specific events of APC were addressed by targeted resequencing, MLPA (P043-C1), methylation-specific MLPA, and Sanger sequencing of promoter regions. A novel 132-kb deletion encompassing the APC promoter 1B and upstream sequence occurred in a classical FAP family with allele-specific APC expression. No promoter-specific point mutations or hypermethylation were present in any family. In conclusion, promoter-specific alterations are a rare cause for mutation-negative FAP (1/51, 2%). The frequency and clinical correlations of promoter 1B deletions are poorly defined. This investigation provides frequencies of 1/26 (4%) for classical FAP, 0/25 (0%) for AFAP, and 1/7 (14%) for families with allele-specific expression of APC. Clinically, promoter 1B deletions may associate with classical FAP without extracolonic manifestations.
Fil: Pavicic, Walter Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Multidisciplinario de Biología Celular. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Multidisciplinario de Biología Celular. Universidad Nacional de La Plata. Instituto Multidisciplinario de Biología Celular; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. University of Helsinki. Helsinki; Finlandia
Fil: Nieminen, Taina. University of Helsinki. Helsinki; Finlandia
Fil: Gylling, Annette. University of Helsinki. Helsinki; Finlandia
Fil: Pursiheimo, Juha Pekka. University of Turku and Åbo Akademi University. Turku; Finlandia
Fil: Laiho, Asta. University of Turku and Åbo Akademi University. Turku; Finlandia
Fil: Gyenesei, Attila. University of Turku and Åbo Akademi University. Turku; Finlandia
Fil: Järvinen, Heikki J.. Helsinki University Central Hospital. Helsinki; Finlandia
Fil: Peltomäki, Paivi. University of Helsinki. Helsinki; Finlandia - Materia
-
Apc
Familial Adenomatous Polyposis
Promoter
Deletion - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/33221
Ver los metadatos del registro completo
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Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposisPavicic, Walter HernanNieminen, TainaGylling, AnnettePursiheimo, Juha PekkaLaiho, AstaGyenesei, AttilaJärvinen, Heikki J.Peltomäki, PaiviApcFamilial Adenomatous PolyposisPromoterDeletionhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In familial adenomatous polyposis (FAP), 20% of classical and 70% of attenuated/atypical (AFAP) cases remain mutation-negative after routine testing; yet, allelic expression imbalance may suggest an APC alteration. Our aim was to determine the proportion of families attributable to genetic or epigenetic changes in the APC promoter region. We studied 51 unrelated families/cases (26 with classical FAP and 25 with AFAP) with no point mutations in the exons and exon/intron borders and no rearrangements by multiplex ligation-dependent probe amplification (MLPA, P043-B1). Promoter-specific events of APC were addressed by targeted resequencing, MLPA (P043-C1), methylation-specific MLPA, and Sanger sequencing of promoter regions. A novel 132-kb deletion encompassing the APC promoter 1B and upstream sequence occurred in a classical FAP family with allele-specific APC expression. No promoter-specific point mutations or hypermethylation were present in any family. In conclusion, promoter-specific alterations are a rare cause for mutation-negative FAP (1/51, 2%). The frequency and clinical correlations of promoter 1B deletions are poorly defined. This investigation provides frequencies of 1/26 (4%) for classical FAP, 0/25 (0%) for AFAP, and 1/7 (14%) for families with allele-specific expression of APC. Clinically, promoter 1B deletions may associate with classical FAP without extracolonic manifestations.Fil: Pavicic, Walter Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Multidisciplinario de Biología Celular. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Multidisciplinario de Biología Celular. Universidad Nacional de La Plata. Instituto Multidisciplinario de Biología Celular; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. University of Helsinki. Helsinki; FinlandiaFil: Nieminen, Taina. University of Helsinki. Helsinki; FinlandiaFil: Gylling, Annette. University of Helsinki. Helsinki; FinlandiaFil: Pursiheimo, Juha Pekka. University of Turku and Åbo Akademi University. Turku; FinlandiaFil: Laiho, Asta. University of Turku and Åbo Akademi University. Turku; FinlandiaFil: Gyenesei, Attila. University of Turku and Åbo Akademi University. Turku; FinlandiaFil: Järvinen, Heikki J.. Helsinki University Central Hospital. Helsinki; FinlandiaFil: Peltomäki, Paivi. University of Helsinki. Helsinki; FinlandiaWiley-liss, Div John Wiley & Sons Inc2014-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/33221Peltomäki, Paivi; Gyenesei, Attila; Pursiheimo, Juha Pekka; Järvinen, Heikki J.; Laiho, Asta; Gylling, Annette; et al.; Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis; Wiley-liss, Div John Wiley & Sons Inc; Genes, Chromosomes & Cancer.; 53; 10; 6-2014; 857-8641045-2257CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/gcc.22197info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/gcc.22197/abstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:56:03Zoai:ri.conicet.gov.ar:11336/33221instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:56:04.017CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis |
title |
Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis |
spellingShingle |
Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis Pavicic, Walter Hernan Apc Familial Adenomatous Polyposis Promoter Deletion |
title_short |
Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis |
title_full |
Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis |
title_fullStr |
Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis |
title_full_unstemmed |
Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis |
title_sort |
Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis |
dc.creator.none.fl_str_mv |
Pavicic, Walter Hernan Nieminen, Taina Gylling, Annette Pursiheimo, Juha Pekka Laiho, Asta Gyenesei, Attila Järvinen, Heikki J. Peltomäki, Paivi |
author |
Pavicic, Walter Hernan |
author_facet |
Pavicic, Walter Hernan Nieminen, Taina Gylling, Annette Pursiheimo, Juha Pekka Laiho, Asta Gyenesei, Attila Järvinen, Heikki J. Peltomäki, Paivi |
author_role |
author |
author2 |
Nieminen, Taina Gylling, Annette Pursiheimo, Juha Pekka Laiho, Asta Gyenesei, Attila Järvinen, Heikki J. Peltomäki, Paivi |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Apc Familial Adenomatous Polyposis Promoter Deletion |
topic |
Apc Familial Adenomatous Polyposis Promoter Deletion |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
In familial adenomatous polyposis (FAP), 20% of classical and 70% of attenuated/atypical (AFAP) cases remain mutation-negative after routine testing; yet, allelic expression imbalance may suggest an APC alteration. Our aim was to determine the proportion of families attributable to genetic or epigenetic changes in the APC promoter region. We studied 51 unrelated families/cases (26 with classical FAP and 25 with AFAP) with no point mutations in the exons and exon/intron borders and no rearrangements by multiplex ligation-dependent probe amplification (MLPA, P043-B1). Promoter-specific events of APC were addressed by targeted resequencing, MLPA (P043-C1), methylation-specific MLPA, and Sanger sequencing of promoter regions. A novel 132-kb deletion encompassing the APC promoter 1B and upstream sequence occurred in a classical FAP family with allele-specific APC expression. No promoter-specific point mutations or hypermethylation were present in any family. In conclusion, promoter-specific alterations are a rare cause for mutation-negative FAP (1/51, 2%). The frequency and clinical correlations of promoter 1B deletions are poorly defined. This investigation provides frequencies of 1/26 (4%) for classical FAP, 0/25 (0%) for AFAP, and 1/7 (14%) for families with allele-specific expression of APC. Clinically, promoter 1B deletions may associate with classical FAP without extracolonic manifestations. Fil: Pavicic, Walter Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Multidisciplinario de Biología Celular. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Multidisciplinario de Biología Celular. Universidad Nacional de La Plata. Instituto Multidisciplinario de Biología Celular; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. University of Helsinki. Helsinki; Finlandia Fil: Nieminen, Taina. University of Helsinki. Helsinki; Finlandia Fil: Gylling, Annette. University of Helsinki. Helsinki; Finlandia Fil: Pursiheimo, Juha Pekka. University of Turku and Åbo Akademi University. Turku; Finlandia Fil: Laiho, Asta. University of Turku and Åbo Akademi University. Turku; Finlandia Fil: Gyenesei, Attila. University of Turku and Åbo Akademi University. Turku; Finlandia Fil: Järvinen, Heikki J.. Helsinki University Central Hospital. Helsinki; Finlandia Fil: Peltomäki, Paivi. University of Helsinki. Helsinki; Finlandia |
description |
In familial adenomatous polyposis (FAP), 20% of classical and 70% of attenuated/atypical (AFAP) cases remain mutation-negative after routine testing; yet, allelic expression imbalance may suggest an APC alteration. Our aim was to determine the proportion of families attributable to genetic or epigenetic changes in the APC promoter region. We studied 51 unrelated families/cases (26 with classical FAP and 25 with AFAP) with no point mutations in the exons and exon/intron borders and no rearrangements by multiplex ligation-dependent probe amplification (MLPA, P043-B1). Promoter-specific events of APC were addressed by targeted resequencing, MLPA (P043-C1), methylation-specific MLPA, and Sanger sequencing of promoter regions. A novel 132-kb deletion encompassing the APC promoter 1B and upstream sequence occurred in a classical FAP family with allele-specific APC expression. No promoter-specific point mutations or hypermethylation were present in any family. In conclusion, promoter-specific alterations are a rare cause for mutation-negative FAP (1/51, 2%). The frequency and clinical correlations of promoter 1B deletions are poorly defined. This investigation provides frequencies of 1/26 (4%) for classical FAP, 0/25 (0%) for AFAP, and 1/7 (14%) for families with allele-specific expression of APC. Clinically, promoter 1B deletions may associate with classical FAP without extracolonic manifestations. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/33221 Peltomäki, Paivi; Gyenesei, Attila; Pursiheimo, Juha Pekka; Järvinen, Heikki J.; Laiho, Asta; Gylling, Annette; et al.; Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis; Wiley-liss, Div John Wiley & Sons Inc; Genes, Chromosomes & Cancer.; 53; 10; 6-2014; 857-864 1045-2257 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/33221 |
identifier_str_mv |
Peltomäki, Paivi; Gyenesei, Attila; Pursiheimo, Juha Pekka; Järvinen, Heikki J.; Laiho, Asta; Gylling, Annette; et al.; Promoter-specific alterations of APC are a rare cause for mutation-negative familial adenomatous polyposis; Wiley-liss, Div John Wiley & Sons Inc; Genes, Chromosomes & Cancer.; 53; 10; 6-2014; 857-864 1045-2257 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1002/gcc.22197 info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/gcc.22197/abstract |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley-liss, Div John Wiley & Sons Inc |
publisher.none.fl_str_mv |
Wiley-liss, Div John Wiley & Sons Inc |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613686481649664 |
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13.070432 |