Analysis of mutations in CDC27, CTBP2, HYDIN and KMT5A genes in carotid paragangliomas

Carotid paragangliomas (CPGLs) are rare neuroendocrine tumors that arise from paraganglionic tissue of the carotid body localizing at the bifurcation of carotid artery. These tumors are slowly growing, but occasionally they become aggressive and metastatic. Surgical treatment remains high-risk and e...

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Main Authors: E. N. Lukyanova, A. V. Snezhkina, D. V. Kalinin, A. V. Pokrovsky, A. L. Golovyuk, O. A. Stepanov, E. A. Pudova, G. S. Razmakhaev, M. V. Orlova, A. P. Polyakov, M. V. Kiseleva, A. D. Kaprin, A. V. Kudryavtseva
Format: Article
Language:English
Published: Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders 2018-09-01
Series:Вавиловский журнал генетики и селекции
Subjects:
Online Access:https://vavilov.elpub.ru/jour/article/view/1659
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author E. N. Lukyanova
A. V. Snezhkina
D. V. Kalinin
A. V. Pokrovsky
A. L. Golovyuk
O. A. Stepanov
E. A. Pudova
G. S. Razmakhaev
M. V. Orlova
A. P. Polyakov
M. V. Kiseleva
A. D. Kaprin
A. V. Kudryavtseva
author_facet E. N. Lukyanova
A. V. Snezhkina
D. V. Kalinin
A. V. Pokrovsky
A. L. Golovyuk
O. A. Stepanov
E. A. Pudova
G. S. Razmakhaev
M. V. Orlova
A. P. Polyakov
M. V. Kiseleva
A. D. Kaprin
A. V. Kudryavtseva
author_sort E. N. Lukyanova
collection DOAJ
description Carotid paragangliomas (CPGLs) are rare neuroendocrine tumors that arise from paraganglionic tissue of the carotid body localizing at the bifurcation of carotid artery. These tumors are slowly growing, but occasionally they become aggressive and metastatic. Surgical treatment remains high-risk and extremely challenging; radiation and chemotherapy are poorly effective. The study of molecular pathogenesis of CPGLs will allow developing novel therapeutic approaches and revealing biomarkers. Previously, we performed the exome sequencing of 52 CPGLs and estimated mutational load (ML). Paired histologically normal tissues or blood were unavailable, so potentially germline mutations were excluded from the analysis with strong filtering conditions using 1000 Genomes Project and ExAC databases. In this work, ten genes (ZNF717, CDC27, FRG2C, FAM104B, CTBP2, HLA-DRB1, HYDIN, KMT5A, MUC3A, and PRSS3) characterized by the highest level of mutational load were analyzed. Using several prediction algorithms (SIFT, PolyPhen-2, MutationTaster, and LRT), potentially pathogenic mutations were identified in four genes (CDC27, CTBP2, HYDIN, and KMT5A). Many of these mutations occurred in the majority of cases, and their mutation type was checked using exome sequencing data of blood prepared with the same exome enrichment kit that was used for preparation of exome libraries from CPGLs. The majority of the mutations were germline that can apparently be associated with annotation errors in 1000 Genomes Pro ject and ExAC. However, part of the mutations identified in CDC27, CTBP2, HYDIN, and KMT5A remain potentially pathogenic, and there is a large body of data on the involvement of these genes in the formation and progression of other tumors. This allows considering CDC27, CTBP2, HYDIN, and KMT5A genes as potentially associated with CPGL pathogenesis and requires taking them into account in further investigations. Thus, there is a necessity to improve the methods for identification of cancer-asso ciated genes as well as pathogenic mutations.
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spelling doaj.art-ef0fbefbfd6b43439f7e3c2701551b672024-04-11T15:31:00ZengSiberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and BreedersВавиловский журнал генетики и селекции2500-32592018-09-0122672673310.18699/VJ18.416815Analysis of mutations in CDC27, CTBP2, HYDIN and KMT5A genes in carotid paragangliomasE. N. Lukyanova0A. V. Snezhkina1D. V. Kalinin2A. V. Pokrovsky3A. L. Golovyuk4O. A. Stepanov5E. A. Pudova6G. S. Razmakhaev7M. V. Orlova8A. P. Polyakov9M. V. Kiseleva10A. D. Kaprin11A. V. Kudryavtseva12Engelhardt Institute of Molecular Biology, RAS.Engelhardt Institute of Molecular Biology, RAS.Vishnevsky Institute of Surgery, Ministry of Health of the Russian Federation.Vishnevsky Institute of Surgery, Ministry of Health of the Russian Federation.Vishnevsky Institute of Surgery, Ministry of Health of the Russian Federation.Engelhardt Institute of Molecular Biology, RAS.Vishnevsky Institute of Surgery, Ministry of Health of the Russian Federation.National Medical Research Radiological Center, Ministry of Health of the Russian Federation.Peoples’ Friendship University of Russia (RUDN University).National Medical Research Radiological Center, Ministry of Health of the Russian Federation.National Medical Research Radiological Center, Ministry of Health of the Russian Federation.National Medical Research Radiological Center, Ministry of Health of the Russian Federation.Engelhardt Institute of Molecular Biology, RAS; National Medical Research Radiological Center, Ministry of Health of the Russian Federation.Carotid paragangliomas (CPGLs) are rare neuroendocrine tumors that arise from paraganglionic tissue of the carotid body localizing at the bifurcation of carotid artery. These tumors are slowly growing, but occasionally they become aggressive and metastatic. Surgical treatment remains high-risk and extremely challenging; radiation and chemotherapy are poorly effective. The study of molecular pathogenesis of CPGLs will allow developing novel therapeutic approaches and revealing biomarkers. Previously, we performed the exome sequencing of 52 CPGLs and estimated mutational load (ML). Paired histologically normal tissues or blood were unavailable, so potentially germline mutations were excluded from the analysis with strong filtering conditions using 1000 Genomes Project and ExAC databases. In this work, ten genes (ZNF717, CDC27, FRG2C, FAM104B, CTBP2, HLA-DRB1, HYDIN, KMT5A, MUC3A, and PRSS3) characterized by the highest level of mutational load were analyzed. Using several prediction algorithms (SIFT, PolyPhen-2, MutationTaster, and LRT), potentially pathogenic mutations were identified in four genes (CDC27, CTBP2, HYDIN, and KMT5A). Many of these mutations occurred in the majority of cases, and their mutation type was checked using exome sequencing data of blood prepared with the same exome enrichment kit that was used for preparation of exome libraries from CPGLs. The majority of the mutations were germline that can apparently be associated with annotation errors in 1000 Genomes Pro ject and ExAC. However, part of the mutations identified in CDC27, CTBP2, HYDIN, and KMT5A remain potentially pathogenic, and there is a large body of data on the involvement of these genes in the formation and progression of other tumors. This allows considering CDC27, CTBP2, HYDIN, and KMT5A genes as potentially associated with CPGL pathogenesis and requires taking them into account in further investigations. Thus, there is a necessity to improve the methods for identification of cancer-asso ciated genes as well as pathogenic mutations.https://vavilov.elpub.ru/jour/article/view/1659carotid paragangliomasexomemutation loadmutationshigh-throughput sequencing
spellingShingle E. N. Lukyanova
A. V. Snezhkina
D. V. Kalinin
A. V. Pokrovsky
A. L. Golovyuk
O. A. Stepanov
E. A. Pudova
G. S. Razmakhaev
M. V. Orlova
A. P. Polyakov
M. V. Kiseleva
A. D. Kaprin
A. V. Kudryavtseva
Analysis of mutations in CDC27, CTBP2, HYDIN and KMT5A genes in carotid paragangliomas
Вавиловский журнал генетики и селекции
carotid paragangliomas
exome
mutation load
mutations
high-throughput sequencing
title Analysis of mutations in CDC27, CTBP2, HYDIN and KMT5A genes in carotid paragangliomas
title_full Analysis of mutations in CDC27, CTBP2, HYDIN and KMT5A genes in carotid paragangliomas
title_fullStr Analysis of mutations in CDC27, CTBP2, HYDIN and KMT5A genes in carotid paragangliomas
title_full_unstemmed Analysis of mutations in CDC27, CTBP2, HYDIN and KMT5A genes in carotid paragangliomas
title_short Analysis of mutations in CDC27, CTBP2, HYDIN and KMT5A genes in carotid paragangliomas
title_sort analysis of mutations in cdc27 ctbp2 hydin and kmt5a genes in carotid paragangliomas
topic carotid paragangliomas
exome
mutation load
mutations
high-throughput sequencing
url https://vavilov.elpub.ru/jour/article/view/1659
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