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Nikitin AG, Chudakova DA, Enikeev RF, Sakaeva D, Druzhkov M, Shigapova LH, Brovkina OI, Shagimardanova EI, Gusev OA, Gordiev MG. Lynch Syndrome Germline Mutations in Breast Cancer: Next Generation Sequencing Case-Control Study of 1,263 Participants. Front Oncol 2020; 10:666. [PMID: 32547938 PMCID: PMC7273971 DOI: 10.3389/fonc.2020.00666] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 04/09/2020] [Indexed: 12/11/2022] Open
Abstract
Genome instability—the increased tendency of acquiring mutations in the genome and ability of a cell to tolerate high mutation burden—is one of the drivers of cancer. Genome instability results from many causes including defects in DNA repair systems. Previously, it has been shown that germline pathogenic mutations in DNA Mismatch Repair (MMR) pathway cause cancer-predisposing Lynch Syndrome. We proposed that Lynch Syndrome-related germline mutations (LS-mutations) are associated with breast cancer (BC). In this study, we performed Targeted Next-Generation Sequencing of MMR pathway genes MLH1, MSH2, MSH6, EPCAM, and PMS2 in a cohort of 711 patients with hereditary BC, 60 patients with sporadic BC, and 492 healthy donors. Sixty-nine patients (9.7%) with hereditary BC harbored at least one germline mutation in the MMR pathway genes, of them 32 patients (4.5%) harbored mutations in MMR pathway genes which we define as pathogenic or likely pathogenic, and of them 26 patients (3.6%) did not have any pathogenic mutations in DDR pathway genes, compared to two mutations in MMR pathway genes (0.4%) detected in a group of 492 healthy donors [p = 0.00013, OR = 8.9 (CI 95% 2.2–78.4)]. Our study demonstrates that LS-mutations are present in patients with hereditary BC more frequently than in healthy donors, and that there is an association of hereditary BC and mutations c.1321G>A in MLH1, c.260C>G and c.2178G>C in MSH2, c.3217C>T in MSH6, c.1268C>G and c.86G>C in PMS2 genes. This finding provides a rationale for including pathogenic LS-mutations into genetic counseling tests for patients with hereditary BC.
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Affiliation(s)
- Aleksey G Nikitin
- Pulmonology Research Institute, Federal Medical-Biological Agency of Russia, Moscow, Russia
| | - Daria A Chudakova
- School of Biological Sciences, University of Auckland, Auckland, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
| | | | - Dina Sakaeva
- Department of Pharmacology, Bashkir State Medical University, Ufa, Russia
| | | | - Leyla H Shigapova
- Extreme Biology Lab, Scientific and Clinical Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Olga I Brovkina
- Federal Research and Clinical Centre, Federal Medical-Biological Agency of Russia, Moscow, Russia
| | | | - Oleg A Gusev
- Kazan (Volga Region) Federal University, Kazan, Russia.,KFU-RIKEN Translational Genomics Unit, RIKEN Cluster for Science, Technology and Innovation Hub, RIKEN, Yokohama, Japan
| | - Marat G Gordiev
- Tatarstan Cancer Centre, Kazan, Russia.,National Bioservice, Saint Petersburg, Russia
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Brovkina OI, Shigapova L, Chudakova DA, Gordiev MG, Enikeev RF, Druzhkov MO, Khodyrev DS, Shagimardanova EI, Nikitin AG, Gusev OA. The Ethnic-Specific Spectrum of Germline Nucleotide Variants in DNA Damage Response and Repair Genes in Hereditary Breast and Ovarian Cancer Patients of Tatar Descent. Front Oncol 2018; 8:421. [PMID: 30333958 PMCID: PMC6176317 DOI: 10.3389/fonc.2018.00421] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 09/11/2018] [Indexed: 12/11/2022] Open
Abstract
The Russian population consists of more than 100 ethnic groups, presenting a unique opportunity for the identification of hereditary pathogenic mutations. To gain insight into the landscape of heredity pathogenic variants, we employed targeted next-generation sequencing to analyze the germline mutation load in the DNA damage response and repair genes of hereditary breast and ovary cancer syndrome (HBOCS) patients of Tatar ethnicity, which represents ~4% of the total Russian population. Several pathogenic mutations were identified in DNA double-strand break repair genes, and the spectrum of these markers in Tatar patients varied from that previously reported for patients of Slavic ancestry. The CDK12 gene encodes cyclin-dependent kinase 12, the key transcriptional regulator of the genes involved in DNA damage response and repair. CDK12 analysis in a cohort of HBOCS patients of Tatar decent identified a c.1047-2A>G nucleotide variant in the CDK12 gene in 8 of the 106 cases (7.6%). The c.1047-2A>G nucleotide variant was identified in 1 of the 93 (1.1%) HBOCS patients with mixed or unknown ethnicity and in 1 of the 238 (0.42%) healthy control patients of mixed ethnicity (Tatars and non-Tatars) (p = 0.0066, OR = 11.18, CI 95% = 1.53-492.95, Tatar and non-Tatar patients vs. healthy controls). In a group of mixed ethnicity patients from Tatarstan, with sporadic breast and/or ovarian cancer, this nucleotide variant was detected in 2 out of 93 (2.2%) cases. In a cohort of participants of Slavic descent from Moscow, comprising of 95 HBOCS patients, 80 patients with sporadic breast and/or ovarian cancer, and 372 healthy controls, this nucleotide variant was absent. Our study demonstrates a strong predisposition for the CDK12 c.1047-2A>G nucleotide variant in HBOCS in patients of Tatar ethnicity and identifies CDK12 as a novel gene involved in HBOCS susceptibility.
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Affiliation(s)
- Olga I Brovkina
- Federal Research and Clinical Center, Federal Medical-Biological Agency of Russia, Moscow, Russia
| | | | - Daria A Chudakova
- Institute of Natural and Mathematical Sciences, Massey University, Auckland, New Zealand
| | - Marat G Gordiev
- Republican Clinical Oncology Dispensary of the Ministry of Health of the Republic of Tatarstan, Kazan, Russia
| | - Rafael F Enikeev
- Republican Clinical Oncology Dispensary of the Ministry of Health of the Republic of Tatarstan, Kazan, Russia
| | - Maxim O Druzhkov
- Republican Clinical Oncology Dispensary of the Ministry of Health of the Republic of Tatarstan, Kazan, Russia
| | - Dmitriy S Khodyrev
- Federal Research and Clinical Center, Federal Medical-Biological Agency of Russia, Moscow, Russia
| | | | - Alexey G Nikitin
- Federal Research and Clinical Center, Federal Medical-Biological Agency of Russia, Moscow, Russia.,Pulmonology Research Institute, Federal Medical-Biological Agency of Russia, Moscow, Russia
| | - Oleg A Gusev
- Kazan (Volga Region) Federal University, Kazan, Russia.,RIKEN, Yokohama, Japan
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Gorodnova TV, Sokolenko AP, Ivantsov AO, Iyevleva AG, Suspitsin EN, Aleksakhina SN, Yanus GA, Togo AV, Maximov SY, Imyanitov EN. High response rates to neoadjuvant platinum-based therapy in ovarian cancer patients carrying germ-line BRCA mutation. Cancer Lett 2015; 369:363-7. [PMID: 26342406 DOI: 10.1016/j.canlet.2015.08.028] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 08/27/2015] [Accepted: 08/27/2015] [Indexed: 02/07/2023]
Abstract
Preoperative therapy provides an advantage for clinical drug assessment, as it involves yet untreated patients and facilitates access to the post-treatment biological material. Testing for Slavic founder BRCA mutations was performed for 225 ovarian cancer (OC) patients, who were treated by platinum-based neoadjuvant therapy. 34 BRCA1 and 1 BRCA2 mutation carriers were identified. Complete clinical response was documented in 12/35 (34%) mutation carriers and 8/190 (4%) non-carriers (P = 0.000002). Histopathologic response was observed in 16/35 (46%) women with the germ-line mutation versus 42/169 (25%) patients with the wild-type genotype (P = 0.02). Somatic loss of heterozygosity (LOH) for the remaining wild-type BRCA1 allele was detected only in 7/24 (29%) post-neoadjuvant therapy residual tumor tissues as compared to 9/11 (82%) BRCA1-associated OC, which were not exposed to systemic treatment before the surgery (P = 0.009). Furthermore, comparison of pre- and post-treatment tumor material obtained from the same patients revealed restoration of BRCA1 heterozygosity in 2 out of 3 sample pairs presenting with LOH at diagnosis. The obtained data confirm high sensitivity of BRCA-driven OC to platinating agents and provide evidence for a rapid selection of tumor cell clones without LOH during the course of therapy.
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Affiliation(s)
- Tatiana V Gorodnova
- Department of Gynecology, N.N. Petrov Institute of Oncology, St. Petersburg 197758, Russia
| | - Anna P Sokolenko
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg 197758, Russia; Department of Medical Genetics, St. Petersburg Pediatric Medical University, St. Petersburg 194100, Russia
| | - Alexandr O Ivantsov
- Department of Medical Genetics, St. Petersburg Pediatric Medical University, St. Petersburg 194100, Russia; Department of Pathology, N.N. Petrov Institute of Oncology, St. Petersburg 197758, Russia
| | - Aglaya G Iyevleva
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg 197758, Russia; Department of Medical Genetics, St. Petersburg Pediatric Medical University, St. Petersburg 194100, Russia
| | - Evgeny N Suspitsin
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg 197758, Russia; Department of Medical Genetics, St. Petersburg Pediatric Medical University, St. Petersburg 194100, Russia
| | - Svetlana N Aleksakhina
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg 197758, Russia
| | - Grigory A Yanus
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg 197758, Russia; Department of Medical Genetics, St. Petersburg Pediatric Medical University, St. Petersburg 194100, Russia
| | - Alexandr V Togo
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg 197758, Russia; Department of Medical Genetics, St. Petersburg Pediatric Medical University, St. Petersburg 194100, Russia
| | - Sergey Ya Maximov
- Department of Gynecology, N.N. Petrov Institute of Oncology, St. Petersburg 197758, Russia
| | - Evgeny N Imyanitov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg 197758, Russia; Department of Medical Genetics, St. Petersburg Pediatric Medical University, St. Petersburg 194100, Russia; Department of Oncology, I.I. Mechnikov North-Western Medical University, St. Petersburg 191015, Russia; Department of Oncology, St. Petersburg State University, St. Petersburg 199034, Russia.
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Double heterozygotes among breast cancer patients analyzed for BRCA1, CHEK2, ATM, NBN/NBS1, and BLM germ-line mutations. Breast Cancer Res Treat 2014; 145:553-62. [DOI: 10.1007/s10549-014-2971-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Accepted: 04/15/2014] [Indexed: 10/25/2022]
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Tihomirova L, Vaivade I, Fokina O, Peculis R, Mandrika I, Sinicka O, Stengrevics A, Krilova A, Keire G, Petrevics J, Eglitis J, Timofejevs M, Leja M. BRCA1 gene-related hereditary susceptibility to breast and ovarian cancer in Latvia. Adv Med Sci 2014; 59:114-9. [PMID: 24797986 DOI: 10.1016/j.advms.2013.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Accepted: 09/20/2013] [Indexed: 11/17/2022]
Abstract
PURPOSE In this report, we summarise data on BRCA1 gene analysis in Latvia to characterise criteria of genetic testing for breast and ovarian cancer susceptibility. MATERIAL/METHODS Analysis by SSCP/HD, MALDI-TOF mass spectrometry or DNA sequencing was used for mutation detection. Mutations identified were confirmed by direct DNA sequencing. RESULTS Out of 1068 breast and 231 ovarian cancer patients from different families: 58 carried the c.5266dupC and 43 carried the c.4035delA mutations. Every 4th patient in our study did not report cancer in the family. The breast cancer was diagnosed earlier in carriers of the c.5266dupC than in carriers of the c.4035delA (p=0.003). The incidence of breast or ovarian cancer does not differ among the 2 mutation carriers in our patient group. The nature of the c.5266dupC mutation might be more deleterious. CONCLUSIONS We recommend the screening of 4 founder BRCA1 mutations in all breast and ovarian cancer patients in Latvia at diagnosis of disease regardless of family history or age. The BRCA1 screening can be carried out efficiently using the MALDI-TOF mass spectrometry mutation detection method developed in the Biomedical Research and Study Centre (Riga, Latvia).
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Affiliation(s)
- Laima Tihomirova
- Genome Centre, Latvian Biomedical Research and Study Centre, Riga, Latvia.
| | - Iveta Vaivade
- Genome Centre, Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Oksana Fokina
- Genome Centre, Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Raitis Peculis
- Genome Centre, Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Ilona Mandrika
- Genome Centre, Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Olga Sinicka
- Genome Centre, Latvian Biomedical Research and Study Centre, Riga, Latvia
| | | | - Anna Krilova
- Oncology Clinic of the Hospital "Piejuras slimnica", Liepaja, Latvia
| | - Guntars Keire
- Oncology Clinic of the Hospital "Piejuras slimnica", Liepaja, Latvia
| | - Janis Petrevics
- Oncology Clinic of the Hospital "Piejuras slimnica", Liepaja, Latvia
| | | | | | - Marcis Leja
- Faculty of Medicine, University of Latvia, Riga, Latvia
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Kobayashi H, Ohno S, Sasaki Y, Matsuura M. Hereditary breast and ovarian cancer susceptibility genes (review). Oncol Rep 2013; 30:1019-29. [PMID: 23779253 DOI: 10.3892/or.2013.2541] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 05/20/2013] [Indexed: 11/06/2022] Open
Abstract
Women with hereditary breast and ovarian cancer (HBOC) syndrome represent a unique group who are diagnosed at a younger age and result in an increased lifetime risk for developing breast, ovarian and other cancers. This review integrates recent progress and insights into the molecular basis that underlie the HBOC syndrome. A review of English language literature was performed by searching MEDLINE published between January 1994 and October 2012. Mutations and common sequence variants in the BRCA1 and BRCA2 (BRCA) genes are responsible for the majority of HBOC syndrome. Lifetime cancer risks in BRCA mutation carriers are 60-80% for breast cancer and 20-40% for ovarian cancer. Mutations in BRCA genes cannot account for all cases of HBOC, indicating that the remaining cases can be attributed to the involvement of constitutive epimutations or other cancer susceptibility genes, which include Fanconi anemia (FA) cluster (FANCD2, FANCA and FANCC), mismatch repair (MMR) cluster (MLH1, MSH2, PMS1, PMS2 and MSH6), DNA repair cluster (ATM, ATR and CHK1/2), and tumor suppressor cluster (TP53, SKT11 and PTEN). Sporadic breast cancers with TP53 mutations or epigenetic silencing (hypermethylation), ER- and PgR-negative status, an earlier age of onset and high tumor grade resemble phenotypically BRCA1 mutated cancers termed 'BRCAness', those with no BRCA mutations but with a dysfunction of the DNA repair system. In conclusion, genetic or epigenetic loss-of-function mutations of genes that are known to be involved in the repair of DNA damage may lead to increased risk of developing a broad spectrum of breast and ovarian cancers.
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Affiliation(s)
- Hiroshi Kobayashi
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Nara 634-8522, Japan
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