Non-Lynch Familial and Early-Onset Colorectal Cancer Explained by Accumulation of Low-Risk Genetic Variants

Simple Summary A relevant proportion of colorectal cancer patients diagnosed at young age and/or with family history of that type of cancer do not carry germline mutations in know hereditary cancer genes. Moreover, studies aimed to identify additional high-risk colorectal cancer genes were either un...

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Autores: Mur, Pilar; Bonifaci, Nuria; Díez-Villanueva, Anna; Munté, Elisabet; Alonso Aguado, M.Henar; Obón-Santacana, Mireia; Aiza, Gemma; Navarro, Matilde; Piñol Sánchez, Virgínia; Brunet i Vidal, Joan; Tomlinson, Ian; Capellá, Gabriel; Moreno Aguado, Víctor; Valle, Laura
Tipo de documento: Artículo
Estado:Published version
Fecha de publicación:2021
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/28257
Acceso en línea:http://hdl.handle.net/10256/28257
Nivel de acceso:Acceso abierto
Palabra clave:Hereditary colorectal cancer
Cancer predisposition
Serrated polyposis
Polygenic risk score
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author Mur, Pilar
author2 Bonifaci, Nuria
Díez-Villanueva, Anna
Munté, Elisabet
Alonso Aguado, M.Henar
Obón-Santacana, Mireia
Aiza, Gemma
Navarro, Matilde
Piñol Sánchez, Virgínia
Brunet i Vidal, Joan
Tomlinson, Ian
Capellá, Gabriel
Moreno Aguado, Víctor
Valle, Laura
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author_browse Aiza, Gemma
Alonso Aguado, M.Henar
Bonifaci, Nuria
Brunet i Vidal, Joan
Capellá, Gabriel
Díez-Villanueva, Anna
Moreno Aguado, Víctor
Munté, Elisabet
Mur, Pilar
Navarro, Matilde
Obón-Santacana, Mireia
Piñol Sánchez, Virgínia
Tomlinson, Ian
Valle, Laura
author_facet Mur, Pilar
Bonifaci, Nuria
Díez-Villanueva, Anna
Munté, Elisabet
Alonso Aguado, M.Henar
Obón-Santacana, Mireia
Aiza, Gemma
Navarro, Matilde
Piñol Sánchez, Virgínia
Brunet i Vidal, Joan
Tomlinson, Ian
Capellá, Gabriel
Moreno Aguado, Víctor
Valle, Laura
author_role author
collection Recercat. Dipósit de la Recerca de Catalunya
description Simple Summary A relevant proportion of colorectal cancer patients diagnosed at young age and/or with family history of that type of cancer do not carry germline mutations in know hereditary cancer genes. Moreover, studies aimed to identify additional high-risk colorectal cancer genes were either unsuccessful or identified genes that explain extremely few cases. We aimed to evaluate the role of the accumulation of colorectal cancer low-risk variants in familial and early-onset colorectal cancer patients. We observed that the accumulation of low-risk variants may explain a relevant number of these cases, particularly in the presence of family history of colorectal cancer and of the personal history of multiple colorectal cancers. If validated in other series of patients, the identification of familial/early-onset colorectal cancer patients with accumulation of low-risk variants will translate into personalized clinical management and to the identification of additional at-risk family members. A large proportion of familial and/or early-onset cancer patients do not carry pathogenic variants in known cancer predisposing genes. We aimed to assess the contribution of previously validated low-risk colorectal cancer (CRC) alleles to familial/early-onset CRC (fCRC) and to serrated polyposis. We estimated the association of CRC with a 92-variant-based weighted polygenic risk score (wPRS) using 417 fCRC patients, 80 serrated polyposis patients, 1077 hospital-based incident CRC patients, and 1642 controls. The mean wPRS was significantly higher in fCRC than in controls or sporadic CRC patients. fCRC patients in the highest (20th) wPRS quantile were at four-fold greater CRC risk than those in the middle quantile (10th). Compared to low-wPRS fCRC, a higher number of high-wPRS fCRC patients had developed multiple primary CRCs, had CRC family history, and were diagnosed at age >= 50. No association with wPRS was observed for serrated polyposis. In conclusion, a relevant proportion of mismatch repair (MMR)-proficient fCRC cases might be explained by the accumulation of low-risk CRC alleles. Validation in independent cohorts and development of predictive models that include polygenic risk score (PRS) data and other CRC predisposing factors will determine the implementation of PRS into genetic testing and counselling in familial and early-onset CRC
eu_rights_str_mv openAccess
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institution Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
network_acronym_str ES
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oai_identifier_str oai:recercat.cat:10256/28257
publishDate 2021
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publisher MDPI (Multidisciplinary Digital Publishing Institute)
publisherStr MDPI (Multidisciplinary Digital Publishing Institute)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
spelling Non-Lynch Familial and Early-Onset Colorectal Cancer Explained by Accumulation of Low-Risk Genetic Variants Mur, Pilar Bonifaci, Nuria Díez-Villanueva, Anna Munté, Elisabet Alonso Aguado, M.Henar Obón-Santacana, Mireia Aiza, Gemma Navarro, Matilde Piñol Sánchez, Virgínia Brunet i Vidal, Joan Tomlinson, Ian Capellá, Gabriel Moreno Aguado, Víctor Valle, Laura Hereditary colorectal cancer Cancer predisposition Serrated polyposis Polygenic risk score Simple Summary A relevant proportion of colorectal cancer patients diagnosed at young age and/or with family history of that type of cancer do not carry germline mutations in know hereditary cancer genes. Moreover, studies aimed to identify additional high-risk colorectal cancer genes were either unsuccessful or identified genes that explain extremely few cases. We aimed to evaluate the role of the accumulation of colorectal cancer low-risk variants in familial and early-onset colorectal cancer patients. We observed that the accumulation of low-risk variants may explain a relevant number of these cases, particularly in the presence of family history of colorectal cancer and of the personal history of multiple colorectal cancers. If validated in other series of patients, the identification of familial/early-onset colorectal cancer patients with accumulation of low-risk variants will translate into personalized clinical management and to the identification of additional at-risk family members. A large proportion of familial and/or early-onset cancer patients do not carry pathogenic variants in known cancer predisposing genes. We aimed to assess the contribution of previously validated low-risk colorectal cancer (CRC) alleles to familial/early-onset CRC (fCRC) and to serrated polyposis. We estimated the association of CRC with a 92-variant-based weighted polygenic risk score (wPRS) using 417 fCRC patients, 80 serrated polyposis patients, 1077 hospital-based incident CRC patients, and 1642 controls. The mean wPRS was significantly higher in fCRC than in controls or sporadic CRC patients. fCRC patients in the highest (20th) wPRS quantile were at four-fold greater CRC risk than those in the middle quantile (10th). Compared to low-wPRS fCRC, a higher number of high-wPRS fCRC patients had developed multiple primary CRCs, had CRC family history, and were diagnosed at age >= 50. No association with wPRS was observed for serrated polyposis. In conclusion, a relevant proportion of mismatch repair (MMR)-proficient fCRC cases might be explained by the accumulation of low-risk CRC alleles. Validation in independent cohorts and development of predictive models that include polygenic risk score (PRS) data and other CRC predisposing factors will determine the implementation of PRS into genetic testing and counselling in familial and early-onset CRC This research was funded by the Spanish Ministry of Science and Innovation, co-funded by FEDER funds a way to build Europe [SAF2016-80888-R (LV), PID2020-112595RB-I00 (LV), PID2019111254RB-I00 (GC)]; Instituto de Salud Carlos III [CIBERONC CB16/12/00234, Sara Borrell Postdoctoral contract (PM); PI17/00092 (VM)]; the Government of Catalonia [AGAUR 2017SGR1282, CERCA Program for institutional support]; and Fundacion Olga Torres. The genotyping service was carried out at CEGEN-PRB3-ISCIII, which is supported by grant PT17/0019 of the PE I+D+i 2013-2016, funded by ISCIII and ERDF. Sample collection of this study (sporadic CRC and controls) was supported by the Plataforma Biobancos (PT17/0015/0024) and ICOBIOBANC, sponsored by the Catalan Institute of Oncology. This article is based upon work from COST action DYCA17118, supported by COST (European Cooperation in Science and Technology) MDPI (Multidisciplinary Digital Publishing Institute) http://hdl.handle.net/10256/28257
spellingShingle Non-Lynch Familial and Early-Onset Colorectal Cancer Explained by Accumulation of Low-Risk Genetic Variants
Mur, Pilar
Hereditary colorectal cancer
Cancer predisposition
Serrated polyposis
Polygenic risk score
status_str publishedVersion
title Non-Lynch Familial and Early-Onset Colorectal Cancer Explained by Accumulation of Low-Risk Genetic Variants
title_full Non-Lynch Familial and Early-Onset Colorectal Cancer Explained by Accumulation of Low-Risk Genetic Variants
title_fullStr Non-Lynch Familial and Early-Onset Colorectal Cancer Explained by Accumulation of Low-Risk Genetic Variants
title_full_unstemmed Non-Lynch Familial and Early-Onset Colorectal Cancer Explained by Accumulation of Low-Risk Genetic Variants
title_short Non-Lynch Familial and Early-Onset Colorectal Cancer Explained by Accumulation of Low-Risk Genetic Variants
title_sort Non-Lynch Familial and Early-Onset Colorectal Cancer Explained by Accumulation of Low-Risk Genetic Variants
topic Hereditary colorectal cancer
Cancer predisposition
Serrated polyposis
Polygenic risk score
topic_facet Hereditary colorectal cancer
Cancer predisposition
Serrated polyposis
Polygenic risk score
url http://hdl.handle.net/10256/28257