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Bao S, Sun N, Li Y, Shu J, Xu J, Zhang Y, Qiu X. BRCA mutation status and pathological characterization of breast cancer in Zhoushan Islands, China. J Int Med Res 2024; 52:3000605231223426. [PMID: 38263931 PMCID: PMC10807394 DOI: 10.1177/03000605231223426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 12/11/2023] [Indexed: 01/25/2024] Open
Abstract
OBJECTIVE To investigate BRCA1/2 gene mutations and their relationship with clinicopathological features in patients with breast cancer in Zhoushan Islands. METHODS High-throughput whole-exome gene sequencing was used to detect BRCA1/2 mutations in 776 breast cancer patients in Zhoushan Islands. RESULTS The BRCA1/2 mutation rate of breast cancer patients in Zhoushan Islands was 4.38% (34/776). BRCA1 mutations were significantly correlated with age, molecular type, and family history of breast and ovarian cancers. BRCA2 mutations were most commonly found in invasive lobular carcinoma. Moreover, the BRCA2 mutation rate of cancers with molecular type luminal B (receptor protein-tyrosine kinase [HER2]-negative) was also relatively high. CONCLUSION The rate of BRCA1/2 mutations in breast cancer patients from Zhoushan Islands is approximately 4.38%, and BRCA1 mutation is related to age, molecular type, and family history of breast and ovarian cancers.
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Affiliation(s)
- Shuhui Bao
- Surgery Department, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang, China
- Department of Breast Surgery, Zhoushan Hospital, Zhejiang, China
| | - Nini Sun
- Surgery Department, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang, China
| | - Yaling Li
- Surgery Department, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang, China
| | - Jiaojie Shu
- Surgery Department, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang, China
| | - Jing Xu
- Surgery Department, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang, China
| | - Yong Zhang
- Surgery Department, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang, China
| | - Xia Qiu
- Surgery Department, Zhoushan Hospital of Traditional Chinese Medicine, Zhejiang, China
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2
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Kim J, Jeong K, Jun H, Kim K, Bae JM, Song MG, Yi H, Park S, Woo GU, Lee DW, Kim TY, Lee KH, Im SA. Mutations of TP53 and genes related to homologous recombination repair in breast cancer with germline BRCA1/2 mutations. Hum Genomics 2023; 17:2. [PMID: 36604691 PMCID: PMC9817339 DOI: 10.1186/s40246-022-00447-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 12/19/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Germline mutations of breast cancer susceptibility gene BRCA1 and BRCA2 (gBRCA1/2) are associated with elevated risk of breast cancer in young women in Asia. BRCA1 and BRCA2 proteins contribute to genomic stability through homologous recombination (HR)-mediated double-strand DNA break repair in cooperation with other HR-related proteins. In this study, we analyzed the targeted sequencing data of Korean breast cancer patients with gBRCA1/2 mutations to investigate the alterations in HR-related genes and their clinical implications. MATERIALS AND METHODS Data of the breast cancer patients with pathogenic gBRCA1/2 mutations and qualified targeted next-generation sequencing, SNUH FiRST cancer panel, were analyzed. Single nucleotide polymorphisms, small insertions, and deletions were analyzed with functional annotations using ANNOVAR. HR-related genes were defined as ABL1, ATM, ATR, BARD1, BRCA1, BRCA2, CDKN1A, CDKN2A, CHEK1, CHEK2, FANCA, FANCD2, FANCG, FANCI, FANCL, KDR, MUTYH, PALB2, POLE, POLQ, RAD50, RAD51, RAD51D, RAD54L, and TP53. Mismatch-repair genes were MLH1, MSH2, and MSH6. Clinical data were analyzed with cox proportional hazard models and survival analyses. RESULTS Fifty-five Korean breast cancer patients with known gBRCA1/2 mutations and qualified targeted NGS data were analyzed. Ethnically distinct mutations in gBRCA1/2 genes were noted, with higher frequencies of Val1833Ser (14.8%), Glu1210Arg (11.1%), and Tyr130Ter (11.1%) in gBRCA1 and Arg2494Ter (25.0%) and Lys467Ter (14.3%) in gBRCA2. Considering subtypes, gBRCA1 mutations were associated with triple-negative breast cancers (TNBC), while gBRCA2 mutations were more likely hormone receptor-positive breast cancers. At least one missense mutation of HR-related genes was observed in 44 cases (80.0%). The most frequently co-mutated gene was TP53 (38.1%). In patients with gBRCA1/2 mutations, however, genetic variations of TP53 occurred in locations different from the known hotspots of those with sporadic breast cancers. The patients with both gBRCA1/2 and TP53 mutations were more likely to have TNBC, high Ki-67 values, and increased genetic mutations, especially of HR-related genes. Survival benefit was observed in the TP53 mutants of patients with gBRCA2 mutations, compared to those with TP53 wild types. CONCLUSION Our study showed genetic heterogeneity of breast cancer patients with gBRCA1 and gBRCA2 mutations in the Korean populations. Further studies on precision medicine are needed for tailored treatments of patients with genetic diversity among different ethnic groups.
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Affiliation(s)
- Jinyong Kim
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080 Republic of Korea
| | - Kyeonghun Jeong
- grid.31501.360000 0004 0470 5905Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Republic of Korea ,grid.412484.f0000 0001 0302 820XTransdisciplinary Department of Medicine and Advanced Technology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hyeji Jun
- grid.412484.f0000 0001 0302 820XTransdisciplinary Department of Medicine and Advanced Technology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Kwangsoo Kim
- grid.412484.f0000 0001 0302 820XTransdisciplinary Department of Medicine and Advanced Technology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jeong Mo Bae
- grid.412484.f0000 0001 0302 820XDepartment of Pathology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Myung Geun Song
- grid.412484.f0000 0001 0302 820XBiomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hanbaek Yi
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080 Republic of Korea
| | - Songyi Park
- grid.415735.10000 0004 0621 4536Division of Hematology/Oncology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Go-un Woo
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080 Republic of Korea
| | - Dae-Won Lee
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080 Republic of Korea
| | - Tae-Yong Kim
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080 Republic of Korea
| | - Kyung-Hun Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea. .,Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.
| | - Seock-Ah Im
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea. .,Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.
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3
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Mavragani A, Rodrigues PP, Nakazawa-Miklaševiča M, Pinto D, Miklaševičs E, Trofimovičs G, Gardovskis J, Cardoso F, Cardoso MJ. Effectiveness of Secondary Risk-Reducing Strategies in Patients With Unilateral Breast Cancer With Pathogenic Variants of BRCA1 and BRCA2 Subjected to Breast-Conserving Surgery: Evidence-Based Simulation Study. JMIR Form Res 2022; 6:e37144. [PMID: 36580360 PMCID: PMC9837710 DOI: 10.2196/37144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 10/30/2022] [Accepted: 11/01/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Approximately 62% of patients with breast cancer with a pathogenic variant (BRCA1 or BRCA2) undergo primary breast-conserving therapy. OBJECTIVE The study aims to develop a personalized risk management decision support tool for carriers of a pathogenic variant (BRCA1 or BRCA2) who underwent breast-conserving therapy for unilateral early-stage breast cancer. METHODS We developed a Bayesian network model of a hypothetical cohort of carriers of BRCA1 or BRCA2 diagnosed with stage I/II unilateral breast cancer and treated with breast-conserving treatment who underwent subsequent second primary cancer risk-reducing strategies. Using event dependencies structured according to expert knowledge and conditional probabilities obtained from published evidence, we predicted the 40-year overall survival rate of different risk-reducing strategies for 144 cohorts of women defined by the type of pathogenic variants (BRCA1 or BRCA2), age at primary breast cancer diagnosis, breast cancer subtype, stage of primary breast cancer, and presence or absence of adjuvant chemotherapy. RESULTS Absence of adjuvant chemotherapy was the most powerful factor that was linked to a dramatic decline in survival. There was a negligible decline in the mortality in patients with triple-negative breast cancer, who received no chemotherapy and underwent any secondary risk-reducing strategy, compared with surveillance. The potential survival benefit from any risk-reducing strategy was more modest in patients with triple-negative breast cancer who received chemotherapy compared with patients with luminal breast cancer. However, most patients with triple-negative breast cancer in stage I benefited from bilateral risk-reducing mastectomy and risk-reducing salpingo-oophorectomy or just risk-reducing salpingo-oophorectomy. Most patients with luminal stage I/II unilateral breast cancer benefited from bilateral risk-reducing mastectomy and risk-reducing salpingo-oophorectomy. The impact of risk-reducing salpingo-oophorectomy in patients with luminal breast cancer in stage I/II increased with age. Most older patients with the BRCA1 and BRCA2 pathogenic variants in exons 12-24/25 with luminal breast cancer may gain a similar survival benefit from other risk-reducing strategies or surveillance. CONCLUSIONS Our study showed that it is mandatory to consider the complex interplay between the types of BRCA1 and BRCA2 pathogenic variants, age at primary breast cancer diagnosis, breast cancer subtype and stage, and received systemic treatment. As no prospective study results are available at the moment, our simulation model, which will integrate a decision support system in the near future, could facilitate the conversation between the health care provider and patient and help to weigh all the options for risk-reducing strategies leading to a more balanced decision.
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Affiliation(s)
| | - Pedro Pereira Rodrigues
- Information and Health Decision Sciences of the Faculty of Medicine, University of Porto, Porto, Portugal
| | | | - David Pinto
- Breast Cancer Unit, Champalimaud Cancer Center, Lisbon, Portugal
| | | | | | - Jānis Gardovskis
- Department of Surgery, Faculty of Medicine, Pauls Stradins Clinical University Hospital, Rīga Stradiņš University, Riga, Latvia
| | - Fatima Cardoso
- Breast Cancer Unit, Champalimaud Cancer Center, Lisbon, Portugal
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4
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Li Y, Chen L, Lv J, Chen X, Zeng B, Chen M, Guo W, Lin Y, Yu L, Hou J, Li J, Zhou P, Zhang W, Li S, Jin X, Cai W, Zhang K, Huang Y, Wang C, Fu F. Clinical application of artificial neural network (ANN) modeling to predict BRCA1/2 germline deleterious variants in Chinese bilateral primary breast cancer patients. BMC Cancer 2022; 22:1125. [PMID: 36324133 PMCID: PMC9628090 DOI: 10.1186/s12885-022-10160-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 09/19/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Bilateral breast cancer (BBC), as well as ovarian cancer, are significantly associated with germline deleterious variants in BRCA1/2, while BRCA1/2 germline deleterious variants carriers can exquisitely benefit from poly (ADP-ribose) polymerase (PARP) inhibitors. However, formal genetic testing could not be carried out for all patients due to extensive use of healthcare resources, which in turn results in high medical costs. To date, existing BRCA1/2 deleterious variants prediction models have been developed in women of European or other descent who are quite genetically different from Asian population. Therefore, there is an urgent clinical need for tools to predict the frequency of BRCA1/2 deleterious variants in Asian BBC patients balancing the increased demand for and cost of cancer genetics services. METHODS The entire coding region of BRCA1/2 was screened for the presence of germline deleterious variants by the next generation sequencing in 123 Chinese BBC patients. Chi-square test, univariate and multivariate logistic regression were used to assess the relationship between BRCA1/2 germline deleterious variants and clinicopathological characteristics. The R software was utilized to develop artificial neural network (ANN) and nomogram modeling for BRCA1/2 germline deleterious variants prediction. RESULTS Among 123 BBC patients, we identified a total of 20 deleterious variants in BRCA1 (8; 6.5%) and BRCA2 (12; 9.8%). c.5485del in BRCA1 is novel frameshift deleterious variant. Deleterious variants carriers were younger at first diagnosis (P = 0.0003), with longer interval between two tumors (P = 0.015), at least one medullary carcinoma (P = 0.001), and more likely to be hormone receptor negative (P = 0.006) and HER2 negative (P = 0.001). Area under the receiver operating characteristic curve was 0.903 in ANN and 0.828 in nomogram modeling individually (P = 0.02). CONCLUSION This study shows the spectrum of the BRCA1/2 germline deleterious variants in Chinese BBC patients and indicates that the ANN can accurately predict BRCA deleterious variants than conventional statistical linear approach, which confirms the BRCA1/2 deleterious variants carriers at the lowest costs without adding any additional examinations.
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Affiliation(s)
- Yan Li
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Lili Chen
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Jinxing Lv
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China ,grid.54549.390000 0004 0369 4060Sichuan Cancer Center, School of Medicine, Sichuan Cancer Hospital & Institute, University of Electronic Science and Technology of China, 610000 Chengdu, China
| | - Xiaobin Chen
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Bangwei Zeng
- grid.411176.40000 0004 1758 0478Nosocomial Infection Control Branch, Fujian Medical University Union Hospital, Fuzhou, Fujian Province China
| | - Minyan Chen
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Wenhui Guo
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Yuxiang Lin
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Liuwen Yu
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Jialin Hou
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Jing Li
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Peng Zhou
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Wenzhe Zhang
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Shengmei Li
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Xuan Jin
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Weifeng Cai
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Kun Zhang
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Yeyuan Huang
- grid.256112.30000 0004 1797 9307Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Chuan Wang
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
| | - Fangmeng Fu
- grid.411176.40000 0004 1758 0478Department of Breast Surgery, Fujian Medical University Union Hospital, No.29, Xin Quan Road, Gulou District, 350001 Fuzhou, Fujian Province China ,grid.411176.40000 0004 1758 0478Department of General Surgery, Fujian Medical University Union Hospital, 350001 Fuzhou, Fujian Province China ,grid.256112.30000 0004 1797 9307Breast Cancer Institute, Fujian Medical University, 350001 Fuzhou, Fujian Province China
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5
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Liontos M, Zografos E, Zoumpourlis P, Andrikopoulou A, Svarna A, Fiste O, Kunadis E, Papatheodoridi AM, Kaparelou M, Koutsoukos K, Thomakos N, Haidopoulos D, Rodolakis A, Dimopoulos MA, Zagouri F. BRCA1/2 Mutation Types Do Not Affect Prognosis in Ovarian Cancer Patients. Curr Oncol 2021; 28:4446-4456. [PMID: 34898566 PMCID: PMC8628789 DOI: 10.3390/curroncol28060377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/28/2021] [Accepted: 11/01/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND High grade serous ovarian carcinoma (HGSOC) is the most lethal type of epithelial ovarian cancer, with a prevalence of germline BRCA1/2 mutations as high as 20%. Our objective is to determine whether the location of mutations in the different domains of the BRCA1/2 genes affects the clinical outcome of HGSOC patients. METHODS A total of 51 women with BRCA1 or BRCA2 mutated ovarian cancer were identified. Progression-free survival (PFS) and overall survival (OS) were analyzed. RESULTS In our study cohort, 35 patients were carriers of germline mutations in BRCA1 and 16 in BRCA2. The median PFS time following completion of the primary therapy was 23.8 months (95% CI 20.1-27.5) and the median OS was 92.9 months (95% CI 69.8-116.1) in all BRCA carriers. After multivariate analysis, no significant association among the location or type of BRCA1/2 mutation with PFS or OS was identified. Notably, significant differences in PFS between carriers of identical mutations in the same BRCA gene were detected. CONCLUSIONS Among HGSOC patients, BRCA1/2 carriers with mutations in different locations of the genes show no significant difference in survival outcomes, in terms of PFS and OS, suggesting the potential effect of other genetic abnormalities and co-contributing risk factors.
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Affiliation(s)
- Michalis Liontos
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Eleni Zografos
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Panagiotis Zoumpourlis
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Angeliki Andrikopoulou
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Anna Svarna
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Oraianthi Fiste
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Elena Kunadis
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Alkistis Maria Papatheodoridi
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Maria Kaparelou
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Konstantinos Koutsoukos
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Nikoloas Thomakos
- 1st Department of Obstetrics and Gyencology, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (N.T.); (D.H.); (A.R.)
| | - Dimitrios Haidopoulos
- 1st Department of Obstetrics and Gyencology, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (N.T.); (D.H.); (A.R.)
| | - Alexandros Rodolakis
- 1st Department of Obstetrics and Gyencology, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (N.T.); (D.H.); (A.R.)
| | - Meletios-Athanasios Dimopoulos
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
| | - Flora Zagouri
- Oncology Unit, Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.Z.); (P.Z.); (A.A.); (A.S.); (O.F.); (E.K.); (A.M.P.); (M.K.); (K.K.); (M.-A.D.); (F.Z.)
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6
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Atcı MM, Geredeli Ç, Ay S, Sakin A, Ertürk B, Seçmeler Ş, Arıcı S, Çekin R, Yaşar N, Can O, Cihan Ş, Gümüş M. Clinical and Pathological Characteristics of Patients with High-Risk Breast Cancer Based on BRCA Mutation Profiles: A Retrospective Study. Eur J Breast Health 2021; 17:123-127. [PMID: 33870111 DOI: 10.4274/ejbh.galenos.2020.6346] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 12/18/2020] [Indexed: 01/07/2023]
Abstract
Objective This study aimed to determine the differences in clinicopathological features of Turkish patients with high-risk breast cancer based on the mutation status of two breast cancer susceptibility genes (BRCA1/2) . Materials and Methods This study enrolled patients with invasive breast cancer who have been evaluated for BRCA1/2 mutations due to the presence of high-risk factors admitted to two tertiary referral centers in Turkey. Clinical and histopathological features were analyzed in BRCA1 mutation carriers, BRCA2 mutation carriers, and non-carriers. Results A total of 302 patients with a mean age of 44.2±9.9 (22-82) years were included. BRCA1/2 mutation was found in 75 (24%) patients, of whom 41 (13.6%) were BRCA1 mutation carriers and 37 (12.3%) were BRCA2 mutation carriers. Moreover, 104 (34.4%) and 4 (1.3%) patients had family history of breast and ovarian carcinoma, respectively. The rates of triple negativity (56.1%), histologic grade 3 (65.9%), and lymphovascular invasion (78%) were significantly higher in BRCA1 mutation carriers than in non-carriers and BRCA2 mutation carriers. Furthermore, 87% of triple-negative BRCA1 mutation carriers had histologic grade 3 tumors compared with 38.9% in non-triple-negative BRCA1 mutation carriers, and the difference was significant. Conclusion Findings of this study showed that BRCA1-related breast cancers represent a distinct group with unique pathological features, which are usually associated with a poor prognosis.
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Affiliation(s)
- Muhammed Mustafa Atcı
- Clinic of Medical Oncology, İstanbul Professor Doctor Cemil Tasçıoğlu City Hospital, İstanbul, Turkey
| | - Çağlayan Geredeli
- Clinic of Medical Oncology, İstanbul Professor Doctor Cemil Tasçıoğlu City Hospital, İstanbul, Turkey
| | - Seval Ay
- Department of Medical Oncology, Medeniyet University, Göztepe Training and Research Hospital, İstanbul, Turkey
| | - Abdullah Sakin
- Clinic of Medical Oncology, Van Training and Research Hospital, Van, Turkey
| | - Biray Ertürk
- Clinic of Medical Genetics İstanbul Professor Doctor Cemil Tasçıoğlu City Hospital, İstanbul, Turkey
| | - Şaban Seçmeler
- Clinic of Medical Oncology, İstanbul Professor Doctor Cemil Tasçıoğlu City Hospital, İstanbul, Turkey
| | - Serdar Arıcı
- Clinic of Medical Oncology, İstanbul Professor Doctor Cemil Tasçıoğlu City Hospital, İstanbul, Turkey
| | - Ruhper Çekin
- Clinic of Medical Oncology, İstanbul Professor Doctor Cemil Tasçıoğlu City Hospital, İstanbul, Turkey
| | - Nurgül Yaşar
- Clinic of Medical Oncology, İstanbul Professor Doctor Cemil Tasçıoğlu City Hospital, İstanbul, Turkey
| | - Orçun Can
- Clinic of Medical Oncology, İstanbul Professor Doctor Cemil Tasçıoğlu City Hospital, İstanbul, Turkey
| | - Şener Cihan
- Clinic of Medical Oncology, İstanbul Professor Doctor Cemil Tasçıoğlu City Hospital, İstanbul, Turkey
| | - Mahmut Gümüş
- Department of Medical Oncology, Medeniyet University, Göztepe Training and Research Hospital, İstanbul, Turkey
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7
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Stenehjem DD, Telford C, Unni SK, Bauer H, Sainski A, Deka R, Schauerhamer MB, Ye X, Tak CR, Ma J, Dalvi TB, Gutierrez L, Kaye JA, Tyczynski JE, Brixner DI, Biskupiak JE. BRCA testing and outcomes in women with breast cancer. Breast Cancer Res Treat 2021; 186:839-850. [PMID: 33389410 DOI: 10.1007/s10549-020-06038-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 11/25/2020] [Indexed: 12/27/2022]
Abstract
MAIN PURPOSE Germline BRCA mutations (BRCAm) strongly influence the risk of developing breast cancer. This study aimed to understand the role of BRCAm testing in affected individuals and to assess its impact on the outcome of BRCAm carriers compared to non-carriers (BRCAwt) with breast cancer. RESEARCH QUESTION The research question is "Does standard of care testing for BRCAm improve survival outcomes of breast cancer patients?" METHODS In a single institution observational cohort study, demographic and clinical characteristics were compared between breast cancer patients with and without BRCAm. Frequency of BRCA testing was assessed. Survival outcomes were assessed by initial treatment setting stratified by BRCA status. RESULTS Of 5712 identified women with breast cancer, 14.6% (n = 835) were tested for a BRCA mutation and had a documented result. The total number and proportion of women tested for a BRCAm increased between 2000 and 2014, resulting in an increased number of BRCAm carriers identified. However, the proportion of women who underwent testing and had a BRCAm decreased during the study period from 27.5% in 2000-2004 to 13.3% in 2010-2014. Disease-free survival was similar in the adjuvant and neoadjuvant treatment settings between BRCAm and BRCAwt patients. Progression-free survival on first line treatment and overall survival for patients with metastatic disease was also similar between BRCAm and BRCAwt patients. CONCLUSIONS The proportion of women tested and the number of BRCAm identified increased during the study period despite a decreasing proportion of positive results among women tested.
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Affiliation(s)
- David D Stenehjem
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA. .,Department of Pharmacy Practice and Pharmaceutical Sciences, College of Pharmacy, University of Minnesota, 1110 Kirby Drive, 232 Life Science, Duluth, MN, 55812, USA.
| | - Claire Telford
- AstraZeneca Pharmaceuticals, Gaithersburg, MD, USA.,GlaxoSmithKline, 5 Moore Drive, Research Triangle Park, NC, 27709, USA
| | - Sudhir K Unni
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA.,Daiichi-Sankyo, Basking Ridge, NJ, USA
| | - Hillevi Bauer
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Amy Sainski
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA.,Truven Health, Ann Arbor, MN, USA
| | - Rishi Deka
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA.,University of Southern California, San Diego, CA, USA
| | - Marisa B Schauerhamer
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Xiangyang Ye
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Casey R Tak
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA.,Division of Pharmaceutical Outcomes and Policy, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Junjie Ma
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA.,Amgen Inc, Thousand Oaks, CA, 91320, USA
| | | | | | | | - Jerzy E Tyczynski
- AstraZeneca Pharmaceuticals, Gaithersburg, MD, USA.,AbbVie Inc, Pharmacovigilance and Patient Safety, North Chicago, IL, USA
| | - Diana I Brixner
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Joseph E Biskupiak
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
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8
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Incorvaia L, Fanale D, Bono M, Calò V, Fiorino A, Brando C, Corsini LR, Cutaia S, Cancelliere D, Pivetti A, Filorizzo C, La Mantia M, Barraco N, Cusenza S, Badalamenti G, Russo A, Bazan V. BRCA1/2 pathogenic variants in triple-negative versus luminal-like breast cancers: genotype-phenotype correlation in a cohort of 531 patients. Ther Adv Med Oncol 2020; 12:1758835920975326. [PMID: 33403015 PMCID: PMC7747114 DOI: 10.1177/1758835920975326] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/29/2020] [Indexed: 01/30/2023] Open
Abstract
Background Several available data suggest the association between specific molecular subtypes and BRCA1/2 mutational status. Previous investigations showed the association between BRCA1/2 pathogenic variants (PVs) in specific genomic regions and phenotypic variations of cancer relative risk, while the role of PV type and location in determining the breast cancer (BC) phenotypic features remains still unclear. The aim of this research was to describe the germline BRCA1/2 PVs in triple-negative breast cancer (TNBC) versus luminal-like BC and their potential leverage on BC phenotype. Patients & methods We retrospectively collected and analyzed all clinical information of 531 patients with BC genetically tested for germline BRCA1/2 PVs by Next-Generation Sequencing analysis at University Hospital Policlinico "P. Giaccone" of Palermo (Sicily) from January 2016 to February 2020. Results Our results corroborate the evidence that BRCA1-related tumors often have a profile which resembles the TNBC subtype, whereas BRCA2-associated tumors have a profile that resembles luminal-like BC, especially the Luminal B subtype. Interestingly, our findings suggest that the PVs identified in TNBC were not largely overlapping with those in luminal-like tumors. Differences in the frequency of two PVs potentially associated with different molecular tumor subtypes were observed. BRCA1-633delC was detected with relatively higher prevalence in patients with TNBC, whereas BRCA2-1466delT was found mainly in Luminal B tumors, but in no TNBC patient. Conclusion Future studies examining the type and location of BRCA1/2 PVs within different molecular subtypes are required to verify our hypothesis and could provide an interesting insight into the complex topic of genotype-phenotype correlations. Additionally, a more in-depth understanding of the potential correlations between BRCA PVs and clinical and phenotypic features of hereditary BC syndrome patients could be the key to develop better strategies of prevention and surveillance in BRCA-positive carriers without disease.
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Affiliation(s)
- Lorena Incorvaia
- Section of Medical Oncology, Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Daniele Fanale
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Marco Bono
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Valentina Calò
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Alessia Fiorino
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Chiara Brando
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Lidia Rita Corsini
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Sofia Cutaia
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Daniela Cancelliere
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Alessia Pivetti
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Clarissa Filorizzo
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Maria La Mantia
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Nadia Barraco
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Stefania Cusenza
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Giuseppe Badalamenti
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Antonio Russo
- Section of Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Via del Vespro 129, Palermo, 90127, Italy
| | - Viviana Bazan
- Section of Medical Oncology, Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy
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9
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Qu S, Chen Q, Yi Y, Shao K, Zhang W, Wang Y, Bai J, Li X, Liu Z, Wang X, Jing R, Guan Y, Yi X, Yan M, Cao B, Chen F, Zhu S, Yang X, Wu Y, Huang J. A Reference System for BRCA Mutation Detection Based on Next-Generation Sequencing in the Chinese Population. J Mol Diagn 2019; 21:677-686. [DOI: 10.1016/j.jmoldx.2019.03.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 01/17/2019] [Accepted: 03/13/2019] [Indexed: 12/12/2022] Open
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10
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Madariaga A, Lheureux S, Oza AM. Tailoring Ovarian Cancer Treatment: Implications of BRCA1/2 Mutations. Cancers (Basel) 2019; 11:E416. [PMID: 30909618 PMCID: PMC6468364 DOI: 10.3390/cancers11030416] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/13/2019] [Accepted: 03/18/2019] [Indexed: 02/07/2023] Open
Abstract
High grade serous ovarian cancer (HGSOC) is the most common epithelial ovarian cancer, harbouring more than 20% germline or somatic mutations in the tumour suppressor genes BRCA1 and BRCA2. These genes are involved in both DNA damage repair process via homologous recombination (HR) and transcriptional regulation. BRCA mutation confers distinct characteristics, including an increased response to DNA-damaging agents, such us platinum chemotherapy and poly-ADP ribose polymerase inhibitors (PARPi). However, several mechanisms of resistance to these agents have been described, including increased HR capacity through reverse BRCA mutations, non-homologous end-joint (NHEJ) repair alterations and drug efflux pumps. Current treatments of ovarian cancer including surgery, chemotherapy, targeted treatment and maintenance strategies, as well as resistance mechanisms will be reviewed, focusing on future trends with respect to BRCA mutation carriers.
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Affiliation(s)
- Ainhoa Madariaga
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
| | - Stephanie Lheureux
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
| | - Amit M Oza
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
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11
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Abstract
High grade serous ovarian cancer (HGSOC) is the most common epithelial ovarian cancer, harbouring more than 20% germline or somatic mutations in the tumour suppressor genes BRCA1 and BRCA2. These genes are involved in both DNA damage repair process via homologous recombination (HR) and transcriptional regulation. BRCA mutation confers distinct characteristics, including an increased response to DNA-damaging agents, such us platinum chemotherapy and poly-ADP ribose polymerase inhibitors (PARPi). However, several mechanisms of resistance to these agents have been described, including increased HR capacity through reverse BRCA mutations, non-homologous end-joint (NHEJ) repair alterations and drug efflux pumps. Current treatments of ovarian cancer including surgery, chemotherapy, targeted treatment and maintenance strategies, as well as resistance mechanisms will be reviewed, focusing on future trends with respect to BRCA mutation carriers.
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12
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Madariaga A, Lheureux S, Oza AM. Tailoring Ovarian Cancer Treatment: Implications of BRCA1/2 Mutations. Cancers (Basel) 2019. [PMID: 30909618 DOI: 10.3390/cancers11030416]+[] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
High grade serous ovarian cancer (HGSOC) is the most common epithelial ovarian cancer, harbouring more than 20% germline or somatic mutations in the tumour suppressor genes BRCA1 and BRCA2. These genes are involved in both DNA damage repair process via homologous recombination (HR) and transcriptional regulation. BRCA mutation confers distinct characteristics, including an increased response to DNA-damaging agents, such us platinum chemotherapy and poly-ADP ribose polymerase inhibitors (PARPi). However, several mechanisms of resistance to these agents have been described, including increased HR capacity through reverse BRCA mutations, non-homologous end-joint (NHEJ) repair alterations and drug efflux pumps. Current treatments of ovarian cancer including surgery, chemotherapy, targeted treatment and maintenance strategies, as well as resistance mechanisms will be reviewed, focusing on future trends with respect to BRCA mutation carriers.
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Affiliation(s)
- Ainhoa Madariaga
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
| | - Stephanie Lheureux
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
| | - Amit M Oza
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
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13
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Althubiti MA. Mutation Frequencies in Endometrial Cancer Patients of Different Ethnicities and Tumor Grades: An Analytical Study. SAUDI JOURNAL OF MEDICINE & MEDICAL SCIENCES 2018; 7:16-21. [PMID: 30787852 PMCID: PMC6381847 DOI: 10.4103/sjmms.sjmms_154_18] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: Endometrial carcinoma is a predominant health problem for women worldwide. However, there is a lack of data on genetic mutation frequencies in endometrial cancer patients of different ethnicities and tumor grades. Objective: The objective of this study is to provide data regarding mutation frequencies in endometrial cancer patients of different ethnic groups and tumor grades by analyzing large-scale cancer genomic datasets of a database. Materials and Methods: The following databases of cBioPortal were explored for possible mutation frequency variations in endometrial cancer patients: the Uterine Corpus Endometrial Carcinoma (TCGA, PanCancer Atlas) database for ethnicity-based studies; the Uterine Corpus Endometrial Carcinoma (TCGA, Nature 2013) database for tumor grade-based study; and GDC Data Portal database for calculating survival rates using the Kaplan–Meier method. Results: PTEN mutation frequency was almost identical in all ethnic groups studied (White, Black/African American, Asian, Native Hawaiian or other Pacific Islander, and American Indian or Asian Native). PIK3CA and ARID1A mutation frequencies were higher in White and Asian patients compared with other ethnicities; TP53 and FAT1 mutation frequencies were higher in Black/African Americans; and CTNNB1 and RYR2 mutation frequencies were higher Native Hawaiians or Asian Natives. TTN mutation frequency was lower in Asian patients. With regards to mutation frequencies at different tumor stages, in all genes, >50% of the mutations occurred during the first stage, except in TP53 and POLQ. In terms of prognosis in endometrial cancer considering the 10 most frequently mutated genes, PIK3CA and ARID1A mutations were correlated with good prognosis, whereas TP53 and PIK3R1 mutations were correlated with poor prognosis; mutations in all other genes did not show significant differences. Conclusion: This study revealed a new mutation frequency profile for different ethnicities and tumor grades in endometrial cancer patients. However, because this is a retrospective study, future prospective studies should be conducted including large sample sizes and more controlled measurements.
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Affiliation(s)
- Mohammad A Althubiti
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
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14
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Hamdi Y, Boujemaa M, Ben Rekaya M, Ben Hamda C, Mighri N, El Benna H, Mejri N, Labidi S, Daoud N, Naouali C, Messaoud O, Chargui M, Ghedira K, Boubaker MS, Mrad R, Boussen H, Abdelhak S. Family specific genetic predisposition to breast cancer: results from Tunisian whole exome sequenced breast cancer cases. J Transl Med 2018; 16:158. [PMID: 29879995 PMCID: PMC5992876 DOI: 10.1186/s12967-018-1504-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 05/03/2018] [Indexed: 02/06/2023] Open
Abstract
Background A family history of breast cancer has long been thought to indicate the presence of inherited genetic events that predispose to this disease. In North Africa, many specific epidemio-genetic characteristics have been observed in breast cancer families when compared to Western populations. Despite these specificities, the majority of breast cancer genetics studies performed in North Africa remain restricted to the investigation of the BRCA1 and BRCA2 genes. Thus, comprehensive data at a whole exome or whole genome level from local patients are lacking. Methods A whole exome sequencing (WES) of seven breast cancer Tunisian families have been performed using a family-based approach. We focused our analysis on BC-TN-F001 family that included two affected members that have been sequenced using WES. Relevant variants identified in BC-TN-F001 have been confirmed using Sanger sequencing. Then, we conducted an integrative analysis by combining our results with those from other WES studies in order to figure out the genetic transmission model of the newly identified genes. Biological network construction and protein–protein interactions analyses have been performed to decipher the molecular mechanisms likely accounting for the role of these genes in breast cancer risk. Results Sequencing, filtering strategies, and validation analysis have been achieved. For BC-TN-F001, no deleterious mutations have been identified on known breast cancer genes. However, 373 heterozygous, exonic and rare variants have been identified on other candidate genes. After applying several filters, 12 relevant high-risk variants have been selected. Our results showed that these variants seem to be inherited in a family specific model. This hypothesis has been confirmed following a thorough analysis of the reported WES studies. Enriched biological process and protein–protein interaction networks resulted in the identification of four novel breast cancer candidate genes namely MMS19, DNAH3, POLK and KATB6. Conclusions In this first WES application on Tunisian breast cancer patients, we highlighted the impact of next generation sequencing technologies in the identification of novel breast cancer candidate genes which may bring new insights into the biological mechanisms of breast carcinogenesis. Our findings showed that the breast cancer predisposition in non-BRCA families may be ethnic and/or family specific. Electronic supplementary material The online version of this article (10.1186/s12967-018-1504-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yosr Hamdi
- Laboratory of Biomedical Genomics and Oncogenetics, LR16IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, 13, Place Pasteur-BP 74, 1002, Tunis, Tunisia.
| | - Maroua Boujemaa
- Laboratory of Biomedical Genomics and Oncogenetics, LR16IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, 13, Place Pasteur-BP 74, 1002, Tunis, Tunisia
| | - Mariem Ben Rekaya
- Laboratory of Biomedical Genomics and Oncogenetics, LR16IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, 13, Place Pasteur-BP 74, 1002, Tunis, Tunisia
| | - Cherif Ben Hamda
- Laboratory of Bioinformatics, Biomathematics and Biostatistics, LR16IPT09, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis, Tunisia.,Faculty of Sciences of Bizerte, Carthage University, Tunis, Tunisia
| | - Najah Mighri
- Laboratory of Biomedical Genomics and Oncogenetics, LR16IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, 13, Place Pasteur-BP 74, 1002, Tunis, Tunisia
| | - Houda El Benna
- Department of Medical Oncology, Abderrahmane Mami Hospital, Ariana, Tunisia
| | - Nesrine Mejri
- Department of Medical Oncology, Abderrahmane Mami Hospital, Ariana, Tunisia
| | - Soumaya Labidi
- Department of Medical Oncology, Abderrahmane Mami Hospital, Ariana, Tunisia
| | - Nouha Daoud
- Department of Medical Oncology, Abderrahmane Mami Hospital, Ariana, Tunisia
| | - Chokri Naouali
- Laboratory of Biomedical Genomics and Oncogenetics, LR16IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, 13, Place Pasteur-BP 74, 1002, Tunis, Tunisia
| | - Olfa Messaoud
- Laboratory of Biomedical Genomics and Oncogenetics, LR16IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, 13, Place Pasteur-BP 74, 1002, Tunis, Tunisia
| | - Mariem Chargui
- Laboratory of Biomedical Genomics and Oncogenetics, LR16IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, 13, Place Pasteur-BP 74, 1002, Tunis, Tunisia
| | - Kais Ghedira
- Laboratory of Bioinformatics, Biomathematics and Biostatistics, LR16IPT09, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Mohamed Samir Boubaker
- Laboratory of Biomedical Genomics and Oncogenetics, LR16IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, 13, Place Pasteur-BP 74, 1002, Tunis, Tunisia
| | - Ridha Mrad
- Department of Human Genetics, Charles Nicolle Hospital, Tunis, Tunisia
| | - Hamouda Boussen
- Department of Medical Oncology, Abderrahmane Mami Hospital, Ariana, Tunisia
| | - Sonia Abdelhak
- Laboratory of Biomedical Genomics and Oncogenetics, LR16IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, 13, Place Pasteur-BP 74, 1002, Tunis, Tunisia
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15
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Walton JB, Farquharson M, Mason S, Port J, Kruspig B, Dowson S, Stevenson D, Murphy D, Matzuk M, Kim J, Coffelt S, Blyth K, McNeish IA. CRISPR/Cas9-derived models of ovarian high grade serous carcinoma targeting Brca1, Pten and Nf1, and correlation with platinum sensitivity. Sci Rep 2017; 7:16827. [PMID: 29203787 PMCID: PMC5715106 DOI: 10.1038/s41598-017-17119-1] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 11/21/2017] [Indexed: 12/19/2022] Open
Abstract
Transplantable murine models of ovarian high grade serous carcinoma (HGSC) remain an important research tool. We previously showed that ID8, a widely-used syngeneic model of ovarian cancer, lacked any of the frequent mutations in HGSC, and used CRISPR/Cas9 gene editing to generate derivatives with deletions in Trp53 and Brca2. Here we have used one ID8 Trp53 -/- clone to generate further mutants, with additional mutations in Brca1, Pten and Nf1, all of which are frequently mutated or deleted in HGSC. We have also generated clones with triple deletions in Trp53, Brca2 and Pten. We show that ID8 Trp53 -/-;Brca1 -/- and Trp53 -/-;Brca2 -/- cells have defective homologous recombination and increased sensitivity to both platinum and PARP inhibitor chemotherapy compared to Trp53 -/-. By contrast, loss of Pten or Nf1 increases growth rate in vivo, and reduces survival following cisplatin chemotherapy in vivo. Finally, we have also targeted Trp53 in cells isolated from a previous transgenic murine fallopian tube carcinoma model, and confirmed that loss of p53 expression in this second model accelerates intraperitoneal growth. Together, these CRISPR-generated models represent a new and simple tool to investigate the biology of HGSC, and the ID8 cell lines are freely available to researchers.
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Affiliation(s)
| | | | - Susan Mason
- Cancer Research UK Beatson Institute, Glasgow, UK
| | | | | | - Suzanne Dowson
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | - Daniel Murphy
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Martin Matzuk
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Jaeyeon Kim
- Departments of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Seth Coffelt
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Karen Blyth
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Iain A McNeish
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK.
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16
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Labidi-Galy SI, Olivier T, Rodrigues M, Ferraioli D, Derbel O, Bodmer A, Petignat P, Rak B, Chopin N, Tredan O, Heudel PE, Stuckelberger S, Meeus P, Meraldi P, Viassolo V, Ayme A, Chappuis PO, Stern MH, Houdayer C, Stoppa-Lyonnet D, Buisson A, Golmard L, Bonadona V, Ray-Coquard I. Location of Mutation in BRCA2 Gene and Survival in Patients with Ovarian Cancer. Clin Cancer Res 2017; 24:326-333. [PMID: 29084914 DOI: 10.1158/1078-0432.ccr-17-2136] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 09/27/2017] [Accepted: 10/24/2017] [Indexed: 11/16/2022]
Abstract
Purpose: BRCA2 plays a central role in homologous recombination by loading RAD51 on DNA breaks. The objective of this study is to determine whether the location of mutations in the RAD51-binding domain (RAD51-BD; exon 11) of BRCA2 gene affects the clinical outcome of ovarian cancer patients.Experimental Design: A study cohort of 353 women with ovarian cancer who underwent genetic germline testing for BRCA1 and BRCA2 genes was identified. Progression-free survival (PFS), platinum-free interval (PFI), and overall survival (OS) were analyzed. The Cancer Genome Atlas (TCGA) cohort of ovarian cancer (n = 316) was used as a validation cohort.Results: In the study cohort, 78 patients were carriers of germline mutations of BRCA2 After adjustment for FIGO stage and macroscopic residual disease, BRCA2 carriers with truncating mutations in the RAD51-BD have significantly prolonged 5-year PFS [58%; adjusted HR, 0.36; 95% confidence interval (CI), 0.20-0.64; P = 0.001] and prolonged PFI (29.7 vs. 15.5 months, P = 0.011), compared with noncarriers. BRCA2 carriers with mutations located in other domains of the gene do not have prolonged 5-year PFS (28%, adjusted HR, 0.67; 95% CI, 0.42-1.07; P = 0.094) or PFI (19 vs. 15.5 months, P = 0.146). In the TCGA cohort, only BRCA2 carriers harboring germline or somatic mutations in the RAD51-BD have prolonged 5-year PFS (46%; adjusted HR, 0.30; 95% CI, 0.13-0.68; P = 0.004) and 5-year OS (78%; adjusted HR, 0.09; 95% CI, 0.02-0.38; P = 0.001).Conclusions: Among ovarian cancer patients, BRCA2 carriers with mutations located in the RAD51-BD (exon 11) have prolonged PFS, PFI, and OS. Clin Cancer Res; 24(2); 326-33. ©2017 AACR.
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Affiliation(s)
| | - Timothée Olivier
- Department of Oncology, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Manuel Rodrigues
- Department of Medical Oncology, Institut Curie, PSL Research University, Paris, France.,Inserm U830, PSL Research University, Institut Curie, Paris, France
| | | | - Olfa Derbel
- Institut du Cancer Jean Mermoz, Lyon, France
| | - Alexandre Bodmer
- Department of Oncology, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Patrick Petignat
- Department of Gynecology, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Beata Rak
- Department of Oncology, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | | | - Olivier Tredan
- Department of Medical Oncology, Centre Léon Bérard, Lyon, France
| | | | - Sarah Stuckelberger
- Department of Oncology, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Pierre Meeus
- Department of Surgery, Centre Léon Bérard, Lyon, France
| | - Patrick Meraldi
- Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Valeria Viassolo
- Department of Oncology, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Aurélie Ayme
- Department of Genetic, Laboratory and Pathology Medicine, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Pierre O Chappuis
- Department of Oncology, Hôpitaux Universitaires de Genève, Geneva, Switzerland.,Department of Genetic, Laboratory and Pathology Medicine, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Marc-Henri Stern
- Inserm U830, PSL Research University, Institut Curie, Paris, France.,Division of Genetics, Pôle de Médecine diagnostique et théranostique, Institut Curie, Paris, France
| | - Claude Houdayer
- Inserm U830, PSL Research University, Institut Curie, Paris, France.,Division of Genetics, Pôle de Médecine diagnostique et théranostique, Institut Curie, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Dominique Stoppa-Lyonnet
- Inserm U830, PSL Research University, Institut Curie, Paris, France.,Division of Genetics, Pôle de Médecine diagnostique et théranostique, Institut Curie, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Adrien Buisson
- Division of Molecular Genetics, Hospices Civiles de Lyon, Lyon, France
| | - Lisa Golmard
- Division of Genetics, Pôle de Médecine diagnostique et théranostique, Institut Curie, Paris, France
| | - Valérie Bonadona
- Unit of Prevention and Genetic Epidemiology, UMR CNRS 5558, Centre Léon Bérard, Lyon, France
| | - Isabelle Ray-Coquard
- Department of Medical Oncology, Centre Léon Bérard, Lyon, France.,University Claude Bernard (UCBL Lyon1), Lyon France
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17
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Genotype-Phenotype Correlation in Indian Patients with MEN2-Associated Pheochromocytoma and Comparison of Clinico-Pathological Attributes with Apparently Sporadic Adrenal Pheochromocytoma. World J Surg 2016; 40:690-6. [PMID: 26438242 DOI: 10.1007/s00268-015-3255-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Pheochromocytoma (PCC) manifests in up to 50% of MEN2 patients. We correlated the clinico-pathological features of MEN2-associated PCC (MEN-PCC) with RET mutations and compared them with non-MEN adrenal-PCCs. METHODS In this retrospective single institution study on a large PCC database (n = 208, 1997-2014) 24 MEN-PCC patients with known RET mutations were reviewed. Excluding 7 with incomplete data, the study cohort of 17 MEN-PCC patients from 11 kindreds (M:F::7:10) was identified. Clinical, biochemical, pathological attributes, and outcomes in the MEN-PCC group were correlated with the genotype, and further compared with non-MEN, apparently sporadic adrenal-PCCs (n = 132, excluding 37 extra-adrenal and 15 VHL/NF1/SDH-associated PCC). RESULTS Components of MEN2 encountered included MTC in 13(76.5%), Marfanoid habitus in 2, and PHPT, cutaneous lichen amyloidosis and mucosal neuromas in 1 patient each. In 11(64.7%), PCC was the first detected MEN2 component (Symptomatic:8, Incidentaloma:3). Four (23.5%) were normotensive; 8(47.1%) had bilateral PCC (7 synchronous, 1 metachronous). Surgery for PCC included laparoscopic adrenalectomy in 12; and cortical-sparing adrenalectomy in 2 of 8 bilateral PCC patients. Mean MEN-PCC tumor size was 6.9 ± 3.9 cm, and 6(35%) had additional adrenal medullary hyperplasia. Four different genotypes were encountered, commonest involving codon 634, others being 804 and 918. Mean age in MEN-PCC (27.7 ± 12.2 years) was lower than non-MEN PCC (39.4 ± 15.7, p = 0.018). Proportion of pediatric patients (35.3% in MEN-PCC vs. 12.9% in non-MEN-PCC, p = 0.007), bilateral tumors (47.1% in MEN-PCC, 4.5% in non-MEN-PCC, p < 0.001), and adrenal medullary hyperplasia (35.2% in MEN-PCC, 0.7% in non-MEN-PCC, p < 0.001) were different. Median 24-hour urinary metanephrines was significantly higher in index MEN-PCC patients, than non-MEN-PCC (634 vs. 214 mcg/24 h, p value = 0.006), but was non-significantly higher in non-index MEN-PCC patients. Mean tumor sizes were comparable in the two groups. None of MEN-PCC patients had malignant PCC, compared to 7(5.3%) in non-MEN-PCC. CONCLUSIONS In this cohort of MEN-PCC from India, the commonest causative RET mutations for MEN-PCC involved codon 634. MEN-PCC patients were younger, and more frequently had bilateral PCC than non-MEN disease. MEN-PCC patients in India are diagnosed with large tumors and extremely high catecholamine/metanephrine levels.
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18
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Minucci A, Scambia G, Santonocito C, Concolino P, Canu G, Mignone F, Saggese I, Guarino D, Costella A, Molinario R, De Bonis M, Ferrandina G, Petrillo M, Scaglione GL, Capoluongo E. Clinical impact on ovarian cancer patients of massive parallel sequencing forBRCAmutation detection: the experience at Gemelli hospital and a literature review. Expert Rev Mol Diagn 2015; 15:1383-403. [DOI: 10.1586/14737159.2015.1081059] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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