1
|
Elia A, Pataccini G, Saldain L, Ambrosio L, Lanari C, Rojas P. Antiprogestins for breast cancer treatment: We are almost ready. J Steroid Biochem Mol Biol 2024; 241:106515. [PMID: 38554981 DOI: 10.1016/j.jsbmb.2024.106515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/05/2024] [Accepted: 03/20/2024] [Indexed: 04/02/2024]
Abstract
The development of antiprogestins was initially a gynecological purpose. However, since mifepristone was developed, its application for breast cancer treatment was immediately proposed. Later, new compounds with lower antiglucocorticoid and antiandrogenic effects were developed to be applied to different pathologies, including breast cancer. We describe herein the studies performed in the breast cancer field with special focus on those reported in recent years, ranging from preclinical biological models to those carried out in patients. We highlight the potential use of antiprogestins in breast cancer prevention in women with BRCA1 mutations, and their use for breast cancer treatment, emphasizing the need to elucidate which patients will respond. In this sense, the PR isoform ratio has emerged as a possible tool to predict antiprogestin responsiveness. The effects of combined treatments of antiprogestins together with other drugs currently used in the clinic, such as tamoxifen, CDK4/CDK6 inhibitors or pembrolizumab in preclinical models is discussed since it is in this scenario that antiprogestins will be probably introduced. Finally, we explain how transcriptomic or proteomic studies, that were carried out in different luminal breast cancer models and in breast cancer samples that responded or were predicted to respond to the antiprogestin therapy, show a decrease in proliferative pathways. Deregulated pathways intrinsic of each model are discussed, as well as how these analyses may contribute to a better understanding of the mechanisms involved.
Collapse
Affiliation(s)
- Andrés Elia
- Laboratory of Hormonal Carcinogenesis, Instituto de Biología y Medicina Experimental (IBYME CONICET), Buenos Aires, Argentina
| | - Gabriela Pataccini
- Laboratory of Hormonal Carcinogenesis, Instituto de Biología y Medicina Experimental (IBYME CONICET), Buenos Aires, Argentina
| | - Leo Saldain
- Laboratory of Hormonal Carcinogenesis, Instituto de Biología y Medicina Experimental (IBYME CONICET), Buenos Aires, Argentina
| | - Luisa Ambrosio
- Laboratory of Hormonal Carcinogenesis, Instituto de Biología y Medicina Experimental (IBYME CONICET), Buenos Aires, Argentina
| | - Claudia Lanari
- Laboratory of Hormonal Carcinogenesis, Instituto de Biología y Medicina Experimental (IBYME CONICET), Buenos Aires, Argentina
| | - Paola Rojas
- Laboratory of Hormonal Carcinogenesis, Instituto de Biología y Medicina Experimental (IBYME CONICET), Buenos Aires, Argentina.
| |
Collapse
|
2
|
Williams MJ, Oliphant MU, Au V, Liu C, Baril C, O'Flanagan C, Lai D, Beatty S, Van Vliet M, Yiu JC, O'Connor L, Goh WL, Pollaci A, Weiner AC, Grewal D, McPherson A, Moore M, Prabhakar V, Agarwal S, Garber JE, Dillon D, Shah SP, Brugge J, Aparicio S. Luminal breast epithelial cells from wildtype and BRCA mutation carriers harbor copy number alterations commonly associated with breast cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.01.591587. [PMID: 38746396 PMCID: PMC11092623 DOI: 10.1101/2024.05.01.591587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Cancer-associated mutations have been documented in normal tissues, but the prevalence and nature of somatic copy number alterations and their role in tumor initiation and evolution is not well understood. Here, using single cell DNA sequencing, we describe the landscape of CNAs in >42,000 breast epithelial cells from women with normal or high risk of developing breast cancer. Accumulation of individual cells with one or two of a specific subset of CNAs (e.g. 1q gain and 16q, 22q, 7q, and 10q loss) is detectable in almost all breast tissues and, in those from BRCA1 or BRCA2 mutations carriers, occurs prior to loss of heterozygosity (LOH) of the wildtype alleles. These CNAs, which are among the most common associated with ductal carcinoma in situ (DCIS) and malignant breast tumors, are enriched almost exclusively in luminal cells not basal myoepithelial cells. Allele-specific analysis of the enriched CNAs reveals that each allele was independently altered, demonstrating convergent evolution of these CNAs in an individual breast. Tissues from BRCA1 or BRCA2 mutation carriers contain a small percentage of cells with extreme aneuploidy, featuring loss of TP53 , LOH of BRCA1 or BRCA2 , and multiple breast cancer-associated CNAs in addition to one or more of the common CNAs in 1q, 10q or 16q. Notably, cells with intermediate levels of CNAs are not detected, arguing against a stepwise gradual accumulation of CNAs. Overall, our findings demonstrate that chromosomal alterations in normal breast epithelium partially mirror those of established cancer genomes and are chromosome- and cell lineage-specific.
Collapse
|
3
|
Minello A, Carreira A. BRCA1/2 Haploinsufficiency: Exploring the Impact of Losing one Allele. J Mol Biol 2024; 436:168277. [PMID: 37714298 DOI: 10.1016/j.jmb.2023.168277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/17/2023]
Abstract
Since their discovery in the late 20th century, significant progress has been made in elucidating the functions of the tumor suppressor proteins BRCA1 and BRCA2. These proteins play vital roles in maintaining genome integrity, including DNA repair, replication fork protection, and chromosome maintenance. It is well-established that germline mutations in BRCA1 and BRCA2 increase the risk of breast and ovarian cancer; however, the precise mechanism underlying tumor formation in this context is not fully understood. Contrary to the long-standing belief that the loss of the second wild-type allele is necessary for tumor development, a growing body of evidence suggests that tumorigenesis can occur despite the presence of a single functional allele. This entails that heterozygosity in BRCA1/2 confers haploinsufficiency, where a single copy of the gene is not sufficient to fully suppress tumor formation. Here we provide an overview of the findings and the ongoing debate regarding BRCA haploinsufficiency. We further put out the challenges in studying this topic and discuss its potential relevance in the prevention and treatment of BRCA-related cancers.
Collapse
Affiliation(s)
- Anna Minello
- Institut Curie, PSL Research University, CNRS, UMR3348, F-91405 Orsay, France; Paris-Saclay University CNRS, UMR3348, F-91405 Orsay, France
| | - Aura Carreira
- Institut Curie, PSL Research University, CNRS, UMR3348, F-91405 Orsay, France; Paris-Saclay University CNRS, UMR3348, F-91405 Orsay, France; Genome Instability and Cancer Predisposition Lab, Department of Genome Dynamics and Function, Centro de Biologia Molecular Severo Ochoa (CBMSO, CSIC-UAM), Madrid 28049, Spain.
| |
Collapse
|
4
|
Yueh WT, Glass DJ, Johnson N. Brca1 Mouse Models: Functional Insights and Therapeutic Opportunities. J Mol Biol 2024; 436:168372. [PMID: 37979908 PMCID: PMC10882579 DOI: 10.1016/j.jmb.2023.168372] [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: 08/10/2023] [Revised: 11/08/2023] [Accepted: 11/14/2023] [Indexed: 11/20/2023]
Abstract
Brca1 mouse models were first reported in the mid-1990's shortly after cloning the human gene. Since then, many mouse models with a range of mutations have been generated, some mimic patient mutations, others are designed to probe specific protein domains and functions. In this review, we discuss early and recent studies using engineered Brca1 mouse alleles, and their implications for understanding Brca1 protein function in the context of DNA repair, tumorigenesis, and anti-cancer therapeutics.
Collapse
Affiliation(s)
- Wei-Ting Yueh
- Nuclear Dynamics Program, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
| | - David J Glass
- Nuclear Dynamics Program, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
| | - Neil Johnson
- Nuclear Dynamics Program, Fox Chase Cancer Center, Philadelphia, PA 19111, USA.
| |
Collapse
|
5
|
Zeng J, Singh S, Zhou X, Jiang Y, Casarez E, Atkins KA, Janes KA, Zong H. A genetic mosaic mouse model illuminates the pre-malignant progression of basal-like breast cancer. Dis Model Mech 2023; 16:dmm050219. [PMID: 37815460 PMCID: PMC10668031 DOI: 10.1242/dmm.050219] [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: 04/26/2023] [Accepted: 09/11/2023] [Indexed: 10/11/2023] Open
Abstract
Basal-like breast cancer (BLBC) is highly aggressive, and often characterized by BRCA1 and p53 deficiency. Although conventional mouse models enabled the investigation of BLBC at malignant stages, its initiation and pre-malignant progression remain understudied. Here, we leveraged a mouse genetic system known as mosaic analysis with double markers (MADM) to study BLBC initiation by generating rare GFP+Brca1, p53-deficient mammary cells alongside RFP+ wild-type sibling cells. After confirming the close resemblance of mammary tumors arising in this model to human BLBC at both transcriptomic and genomic levels, we focused our studies on the pre-malignant progression of BLBC. Initiated GFP+ mutant cells showed a stepwise pre-malignant progression trajectory from focal expansion to hyper-alveolarization and then to micro-invasion. Furthermore, despite morphological similarities to alveoli, hyper-alveolarized structures actually originate from ductal cells based on twin-spot analysis of GFP-RFP sibling cells. Finally, luminal-to-basal transition occurred exclusively in cells that have progressed to micro-invasive lesions. Our MADM model provides excellent spatiotemporal resolution to illuminate the pre-malignant progression of BLBC, and should enable future studies on early detection and prevention for this cancer.
Collapse
Affiliation(s)
- Jianhao Zeng
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia Health System, Charlottesville, VA 22908, USA
| | - Shambhavi Singh
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA
| | - Xian Zhou
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia Health System, Charlottesville, VA 22908, USA
| | - Ying Jiang
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia Health System, Charlottesville, VA 22908, USA
| | - Eli Casarez
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia Health System, Charlottesville, VA 22908, USA
| | - Kristen A. Atkins
- Department of Pathology, University of Virginia Health System, Charlottesville, VA 22908, USA
- University of Virginia Comprehensive Cancer Center, University of Virginia Health System, Charlottesville, VA 22908, USA
| | - Kevin A. Janes
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA
- University of Virginia Comprehensive Cancer Center, University of Virginia Health System, Charlottesville, VA 22908, USA
| | - Hui Zong
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia Health System, Charlottesville, VA 22908, USA
- University of Virginia Comprehensive Cancer Center, University of Virginia Health System, Charlottesville, VA 22908, USA
| |
Collapse
|
6
|
Zattarin E, Taglialatela I, Lobefaro R, Leporati R, Fucà G, Ligorio F, Sposetti C, Provenzano L, Azzollini J, Vingiani A, Ferraris C, Martelli G, Manoukian S, Pruneri G, de Braud F, Vernieri C. Breast cancers arising in subjects with germline BRCA1 or BRCA2 mutations: Different biological and clinical entities with potentially diverse therapeutic opportunities. Crit Rev Oncol Hematol 2023; 190:104109. [PMID: 37643668 DOI: 10.1016/j.critrevonc.2023.104109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 08/11/2023] [Accepted: 08/23/2023] [Indexed: 08/31/2023] Open
Abstract
Breast cancers (BCs) arising in carriers of germline BRCA1 and BRCA2 pathogenic variants (PVs) have long been considered as indistinguishable biological and clinical entities. However, the loss of function of BRCA1 or BRCA2 proteins has different consequences in terms of tumor cell reliance on estrogen receptor signaling and tumor microenvironment composition. Here, we review accumulating preclinical and clinical data indicating that BRCA1 or BRCA2 inactivation may differentially affect BC sensitivity to standard systemic therapies. Based on a different crosstalk between BRCA1 or BRCA2 and the ER pathway, BRCA2-mutated Hormone Receptor-positive, HER2-negative advanced BC may be less sensitive to endocrine therapy (ET) plus CDK 4/6 inhibitors (CDK 4/6i), whereas BRCA2-mutated triple-negative breast cancer (TNBC) may be especially sensitive to immune checkpoint inhibitors. If validated in future prospective studies, these data may have relevant clinical implications, thus establishing different treatment paths in patients with BRCA1 or BRCA2 PVs.
Collapse
Affiliation(s)
- Emma Zattarin
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Ida Taglialatela
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Riccardo Lobefaro
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Rita Leporati
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giovanni Fucà
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Francesca Ligorio
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy; IFOM ETS, the AIRC Institute of Molecular Oncology, Milan, Italy
| | - Caterina Sposetti
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Leonardo Provenzano
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Jacopo Azzollini
- Unit of Medical Genetics, Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Andrea Vingiani
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy; Pathology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Cristina Ferraris
- Breast Unit, Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Gabriele Martelli
- Breast Unit, Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Siranoush Manoukian
- Unit of Medical Genetics, Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giancarlo Pruneri
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy; Pathology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Filippo de Braud
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy; Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Claudio Vernieri
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy; IFOM ETS, the AIRC Institute of Molecular Oncology, Milan, Italy.
| |
Collapse
|
7
|
Siddique A, Fatima W, Shahid N. Association of common BRCA1 variants with predisposition to breast tumors in Pakistan. Ann Hum Genet 2023; 87:222-231. [PMID: 37191028 DOI: 10.1111/ahg.12511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 01/19/2023] [Accepted: 04/27/2023] [Indexed: 05/17/2023]
Abstract
BRCA1 variants are extensively associated with increased risk of breast cancer. Early detection and screening of variants is still rare in developing countries. Here, we investigated six BRCA1 variants in 300 subjects from Pakistani population using tetra amplification-refractory mutation system (T-ARMS) PCR. Our results indicate significant association of BRCA1 variants rs8176237 (AA; OR 8.2, 95% CI 3.02-22.64, p < 0.0001), rs1060915 (CC; OR 4.29, 95% CI 1.94-9.48, p = 0.0003), and rs799912 (TT; OR 3.16, 95% CI 1.44-6.94, p = 0.004) with up to 8-fold increased odds of breast cancer under recessive model. Furthermore, BRCA1 haplotypes AGCACG and AGCCCT were associated with up to 18% breast cancer cases (p < 0.05). Additionally, we found association of these variants with up to 11-fold increased odds of benign breast tumors. Linkage disequilibrium (LD) block-wise analysis revealed haplotypes GCAC and ATAC were associated with significantly increased risk. To our knowledge, this is the first study that identifies the association of these BRCA1 variants with breast tumors in Pakistani population. In conclusion, BRCA1 variants investigated in the present study are associated with high odds of benign- and malignant breast tumors. Studies with bigger sample size may help early detection and screening to reduce the odds of breast cancer.
Collapse
Affiliation(s)
- Ayesha Siddique
- Department System Ecotoxicology, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
- Institute for Environmental Research (Biology V), RWTH Aachen University, Aachen, Germany
- Department of Microbiology and Molecular Genetics, University of the Punjab, Lahore, Pakistan
| | - Warda Fatima
- Department of Microbiology and Molecular Genetics, University of the Punjab, Lahore, Pakistan
| | - Naeem Shahid
- Department System Ecotoxicology, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
- Department of Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt, Frankfurt am Main, Germany
| |
Collapse
|
8
|
Oubaddou Y, Ben Ali F, Oubaqui FE, Qmichou Z, Bakri Y, Rabii Ameziane RA. The Tumor Suppressor BRCA1/2, Cancer Susceptibility and Genome Instability in Gynecological and Mammary Cancers. Asian Pac J Cancer Prev 2023; 24:3139-3153. [PMID: 37774066 PMCID: PMC10762740 DOI: 10.31557/apjcp.2023.24.9.3139] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 09/10/2023] [Indexed: 10/01/2023] Open
Abstract
BRCA1 and BRCA2 germline alterations highly predispose women to breast and ovarian cancers. They are mostly found within the TNBC (Triple-Negative Breast Cancer) and the HGSOC (High-Grade Serous Ovarian Carcinoma) subsets, known by an aggressive phenotype, the lack of therapeutic targets and poor prognosis. Importantly, there is an increased risk for cervical cancer in BRCA1 and BRCA2 mutation carriers that raises questions about the link between the HPV-driven genome instability and BRCA1 and BRCA2 germline mutations. Clinical, preclinical, and in vitro studies explained the increased risk for breast and ovarian cancers by genome instability resulting from the lack or loss of many functions related to BRCA1 or BRCA2 proteins such as DNA damage repair, stalled forks and R-loops resolution, transcription regulation, cell cycle control, and oxidative stress. In this review, we decipher the relationship between BRCA1/2 alterations and genomic instability leading to gynecomammary cancers through results from patients, mice, and cell lines. Understanding the early events of BRCA1/2-driven genomic instability in gynecomammary cancers would help to find new biomarkers for early diagnosis, improve the sensitivity of emerging therapies such as PARP inhibitors, and reveal new potential therapeutic targets.
Collapse
Affiliation(s)
- Yassire Oubaddou
- Laboratory of Biology of Human Pathologies (BioPatH), Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco.
| | - Fatima Ben Ali
- Laboratory of Biology of Human Pathologies (BioPatH), Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco.
| | - Fatima Ezzahrae Oubaqui
- Laboratory of Biology of Human Pathologies (BioPatH), Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco.
- Medical Biotechnology Center, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat, Morocco.
| | - Zineb Qmichou
- Medical Biotechnology Center, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat, Morocco.
| | - Youssef Bakri
- Laboratory of Biology of Human Pathologies (BioPatH), Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco.
| | - Rabii Ameziane Rabii Ameziane
- Laboratory of Biology of Human Pathologies (BioPatH), Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco.
| |
Collapse
|
9
|
Dai LJ, Ma D, Xu YZ, Li M, Li YW, Xiao Y, Jin X, Wu SY, Zhao YX, Wang H, Yang WT, Jiang YZ, Shao ZM. Molecular features and clinical implications of the heterogeneity in Chinese patients with HER2-low breast cancer. Nat Commun 2023; 14:5112. [PMID: 37607916 PMCID: PMC10444861 DOI: 10.1038/s41467-023-40715-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 08/04/2023] [Indexed: 08/24/2023] Open
Abstract
The molecular heterogeneity and distinct features of HER2-low breast cancers, particularly in the Chinese population, are not well understood, limiting its precise management in the era of antibody‒drug conjugates. To address this issue, we established a cohort of 434 Chinese patients with HER2-low breast cancer (433 female and one male) and integrated genomic, transcriptomic, proteomic, and metabolomic profiling data. In this cohort, HER2-low tumors are more distinguished from HER2-0 tumors in the hormone receptor-negative subgroup. Within HER2-low tumors, significant interpatient heterogeneity also exists in the hormone receptor-negative subgroup: basal-like tumors resemble HER2-0 disease, and non-basal-like HER2-low tumors mimic HER2-positive disease. These non-basal-like HER2-low tumors are enriched in the HER2-enriched subtype and the luminal androgen receptor subtype and feature PIK3CA mutation, FGFR4/PTK6/ERBB4 overexpression and lipid metabolism activation. Among hormone receptor-positive tumors, HER2-low tumors show less loss/deletion in 17q peaks than HER2-0 tumors. In this work, we reveal the heterogeneity of HER2-low breast cancers and emphasize the need for more precise stratification regarding hormone receptor status and molecular subtype.
Collapse
Affiliation(s)
- Lei-Jie Dai
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Ding Ma
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Yu-Zheng Xu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Ming Li
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Yu-Wei Li
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Yi Xiao
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Xi Jin
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Song-Yang Wu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Ya-Xin Zhao
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Han Wang
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Wen-Tao Yang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
| | - Yi-Zhou Jiang
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Zhi-Ming Shao
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| |
Collapse
|
10
|
Sokolenko A, Preobrazhenskaya E, Marchetti C, Piermattei A, Zagrebin F, Kuligina E, Gorodnova T, Pavone M, Ivantsov A, Bizin I, Scambia G, Berlev I, Fagotti A, Imyanitov E. Origin of Residual Tumor Masses in BRCA1/2-Driven Ovarian Carcinomas Treated by Neoadjuvant Chemotherapy: Selection of Preexisting BRCA1/2-Proficient Tumor Cells but Not the Gain of Second ORF-Restoring Mutation. Pathobiology 2023; 91:108-113. [PMID: 37579727 DOI: 10.1159/000533591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 08/07/2023] [Indexed: 08/16/2023] Open
Abstract
INTRODUCTION Tubo-ovarian carcinomas (OCs) are highly sensitive to platinum-based neoadjuvant chemotherapy (NACT) but almost never demonstrate complete pathologic response. METHODS We analyzed paired primary and residual tumor tissues from 30 patients with hereditary BRCA1/2-driven OCs (BRCA1: 17; BRCA2: 13), who were treated by carboplatin/paclitaxel NACT (median number of cycles: 3, range: 3-6). BRCA1/2 and TP53 genes were analyzed by the next-generation sequencing. The ratio between TP53 mutation-specific versus wild-type reads was considered to monitor the proportion of tumor and non-tumor cells in the tissue sample, and the ratio between BRCA1/2-mutated and wild-type reads was used to estimate the presence of cells with the loss or retention of heterozygosity (LOH or ROH, respectively). RESULTS All 30 OCs had BRCA1/2 LOH in primary tumor and carried somatic TP53 mutation. Twenty-eight OCs had sufficient tumor cell cellularity in the post-NACT tissue to evaluate the ratio between mutated and wild-type BRCA1/2 alleles. Five (18%) out of 28 informative tumor pairs showed transition from LOH to ROH during NACT presumably affecting all or the vast majority of residual tumor cells. There were no signals of the emergence of a second open reading frame-restoring BRCA1/2 mutation. CONCLUSION Chemonaive BRCA1/2-driven carcinomas may contain a fraction of tumor cells with preserved BRCA1/2 heterozygosity. NACT can cause a selection of pre-existing BRCA1/2-proficient tumor cells, without gaining secondary reversal BRCA1/2 mutations.
Collapse
Affiliation(s)
- Anna Sokolenko
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russian Federation
- Department of Medical Genetics, St. Petersburg Pediatric Medical University, St. Petersburg, Russian Federation
| | - Elena Preobrazhenskaya
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russian Federation
| | - Claudia Marchetti
- Dipartimento Scienze della Salute della Donna e del Bambino, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
- Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Alessia Piermattei
- Dipartimento Scienze della Salute della Donna e del Bambino, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Fedor Zagrebin
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russian Federation
| | - Ekatherina Kuligina
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russian Federation
| | - Tatiana Gorodnova
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russian Federation
| | - Matteo Pavone
- Dipartimento Scienze della Salute della Donna e del Bambino, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
- Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Alexandr Ivantsov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russian Federation
| | - Ilya Bizin
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russian Federation
| | - Giovanni Scambia
- Dipartimento Scienze della Salute della Donna e del Bambino, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
- Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Igor Berlev
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russian Federation
| | - Anna Fagotti
- Dipartimento Scienze della Salute della Donna e del Bambino, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
- Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Evgeny Imyanitov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St. Petersburg, Russian Federation
- Department of Medical Genetics, St. Petersburg Pediatric Medical University, St. Petersburg, Russian Federation
| |
Collapse
|
11
|
Onji M, Penninger JM. RANKL and RANK in Cancer Therapy. Physiology (Bethesda) 2023; 38:0. [PMID: 36473204 DOI: 10.1152/physiol.00020.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Receptor activator of nuclear factor-κB (RANK) and its ligand (RANKL) are key regulators of mammalian physiology such as bone metabolism, immune tolerance and antitumor immunity, and mammary gland biology. Here, we explore the multiple functions of RANKL/RANK in physiology and pathophysiology and discuss underlying principles and strategies to modulate the RANKL/RANK pathway as a therapeutic target in immune-mediated cancer treatment.
Collapse
Affiliation(s)
- Masahiro Onji
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences, VBC-Vienna BioCenter, Vienna, Austria
| | - Josef M Penninger
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences, VBC-Vienna BioCenter, Vienna, Austria.,Department of Medical Genetics, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| |
Collapse
|
12
|
Zeng J, Singh S, Jiang Y, Casarez E, Atkins KA, Janes KA, Zong H. A genetic mosaic mouse model illuminates the pre-malignant progression of basal-like breast cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.25.538333. [PMID: 37163037 PMCID: PMC10168298 DOI: 10.1101/2023.04.25.538333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Basal-like breast cancer is an aggressive breast cancer subtype, often characterized by a deficiency in BRCA1 function and concomitant loss of p53 . While conventional mouse models enable the investigation of its malignant stages, one that reveals its initiation and pre-malignant progression is lacking. Here, we leveraged a mouse genetic system known as M osaic A nalysis with D ouble M arkers (MADM) to generate rare GFP-labeled Brca1 , p53 -deficient cells alongside RFP+ wildtype sibling cells in the mammary gland. The mosaicism resembles the sporadic initiation of human cancer and enables spatially resolved analysis of mutant cells in comparison to paired wildtype sibling cells. Mammary tumors arising in the model show transcriptomic and genomic characteristics similar to human basal-like breast cancer. Analysis of GFP+ mutant cells at interval time points before malignancy revealed a stepwise progression of lesions from focal expansion to hyper-alveolarization and then to micro-invasion. These stereotyped morphologies indicate the pre-malignant stage irrespective of the time point at which it is observed. Paired analysis of GFP-RFP siblings during focal expansion suggested that hyper-alveolarized structures originate from ductal rather than alveolar cells, despite their morphological similarities to alveoli. Evidence for luminal-to-basal transition at the pre-malignant stages was restricted to cells that had escaped hyper-alveoli and progressed to micro-invasive lesions. Our MADM-based mouse model presents a useful tool for studying the pre-malignancy of basal-like breast cancer. Summary statement A mouse model recapitulates the process of human basal-like breast tumorigenesis initiated from sporadic Brca1, p53 -deficient cells, empowering spatially-resolved analysis of mutant cells during pre-malignant progression.
Collapse
|
13
|
Loboda AP, Adonin LS, Zvereva SD, Guschin DY, Korneenko TV, Telegina AV, Kondratieva OK, Frolova SE, Pestov NB, Barlev NA. BRCA Mutations-The Achilles Heel of Breast, Ovarian and Other Epithelial Cancers. Int J Mol Sci 2023; 24:ijms24054982. [PMID: 36902416 PMCID: PMC10003548 DOI: 10.3390/ijms24054982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Two related tumor suppressor genes, BRCA1 and BRCA2, attract a lot of attention from both fundamental and clinical points of view. Oncogenic hereditary mutations in these genes are firmly linked to the early onset of breast and ovarian cancers. However, the molecular mechanisms that drive extensive mutagenesis in these genes are not known. In this review, we hypothesize that one of the potential mechanisms behind this phenomenon can be mediated by Alu mobile genomic elements. Linking mutations in the BRCA1 and BRCA2 genes to the general mechanisms of genome stability and DNA repair is critical to ensure the rationalized choice of anti-cancer therapy. Accordingly, we review the literature available on the mechanisms of DNA damage repair where these proteins are involved, and how the inactivating mutations in these genes (BRCAness) can be exploited in anti-cancer therapy. We also discuss a hypothesis explaining why breast and ovarian epithelial tissues are preferentially susceptible to mutations in BRCA genes. Finally, we discuss prospective novel therapeutic approaches for treating BRCAness cancers.
Collapse
Affiliation(s)
- Anna P. Loboda
- Laboratory of Molecular Oncology, Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | | | - Svetlana D. Zvereva
- Laboratory of Molecular Oncology, Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Dmitri Y. Guschin
- School of Medicine, Nazarbayev University, Astana 010000, Kazakhstan
| | - Tatyana V. Korneenko
- Group of Cross-Linking Enzymes, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia
| | | | | | | | - Nikolay B. Pestov
- Institute of Biomedical Chemistry, 119121 Moscow, Russia
- Group of Cross-Linking Enzymes, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products, 108819 Moscow, Russia
- Correspondence: (N.B.P.); (N.A.B.)
| | - Nick A. Barlev
- Institute of Biomedical Chemistry, 119121 Moscow, Russia
- School of Medicine, Nazarbayev University, Astana 010000, Kazakhstan
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products, 108819 Moscow, Russia
- Institute of Cytology, Tikhoretsky ave 4, 194064 St-Petersburg, Russia
- Correspondence: (N.B.P.); (N.A.B.)
| |
Collapse
|
14
|
Discrimination between Complete versus Non-Complete Pathologic Response to Neoadjuvant Therapy Using Ultrasensitive Mutation Analysis: A Proof-of-Concept Study in BRCA1-Driven Breast Cancer Patients. Int J Mol Sci 2023; 24:ijms24031870. [PMID: 36768191 PMCID: PMC9914941 DOI: 10.3390/ijms24031870] [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: 12/18/2022] [Revised: 01/06/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Neoadjuvant chemotherapy (NACT) for breast cancer (BC) often results in pathologic complete response (pCR), i.e., the complete elimination of visible cancer cells. It is unclear whether the use of ultrasensitive genetic methods may still detect residual BC cells in complete responders. Breast carcinomas arising in BRCA1 mutation carriers almost always carry alterations of the TP53 gene thus providing an opportunity to address this question. The analysis of consecutive BC patients treated by NACT revealed a higher pCR rate in BRCA1-driven vs. BRCA1-wildtype BCs (13/24 (54%) vs. 29/192 (15%), p < 0.0001). Twelve pre-/post-NACT tissue pairs obtained from BRCA1 mutation carriers were available for the study. While TP53 mutation was identified in all chemonaive tumors, droplet digital PCR (ddPCR) analysis of the post-NACT tumor bed revealed the persistence of this alteration in all seven pCR-non-responders but in none of five pCR responders. Eleven patients provided to the study post-NACT tissue samples only; next-generation sequencing (NGS) analysis revealed mutated TP53 copies in all six cases without pCR but in none of five instances of pCR. In total, TP53 mutation was present in post-NACT tissues in all 13 cases without pCR, but in none of 10 patients with pCR (p < 0.000001). Therefore, the lack of visible tumor cells in the post-NACT tumor bed is indeed a reliable indicator of the complete elimination of transformed clones. Failure of ultrasensitive methods to identify patients with minimal residual disease among pCR responders suggests that the result of NACT is a categorical rather than continuous variable, where some patients are destined to be cured while others ultimately fail to experience tumor eradication.
Collapse
|
15
|
Martins FC, Couturier DL, de Santiago I, Sauer CM, Vias M, Angelova M, Sanders D, Piskorz A, Hall J, Hosking K, Amirthanayagam A, Cosulich S, Carnevalli L, Davies B, Watkins TBK, Funingana IG, Bolton H, Haldar K, Latimer J, Baldwin P, Crawford R, Eldridge M, Basu B, Jimenez-Linan M, Mcpherson AW, McGranahan N, Litchfield K, Shah SP, McNeish I, Caldas C, Evan G, Swanton C, Brenton JD. Clonal somatic copy number altered driver events inform drug sensitivity in high-grade serous ovarian cancer. Nat Commun 2022; 13:6360. [PMID: 36289203 PMCID: PMC9606297 DOI: 10.1038/s41467-022-33870-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 10/06/2022] [Indexed: 01/12/2023] Open
Abstract
Chromosomal instability is a major challenge to patient stratification and targeted drug development for high-grade serous ovarian carcinoma (HGSOC). Here we show that somatic copy number alterations (SCNAs) in frequently amplified HGSOC cancer genes significantly correlate with gene expression and methylation status. We identify five prevalent clonal driver SCNAs (chromosomal amplifications encompassing MYC, PIK3CA, CCNE1, KRAS and TERT) from multi-regional HGSOC data and reason that their strong selection should prioritise them as key biomarkers for targeted therapies. We use primary HGSOC spheroid models to test interactions between in vitro targeted therapy and SCNAs. MYC chromosomal copy number is associated with in-vitro and clinical response to paclitaxel and in-vitro response to mTORC1/2 inhibition. Activation of the mTOR survival pathway in the context of MYC-amplified HGSOC is statistically associated with increased prevalence of SCNAs in genes from the PI3K pathway. Co-occurrence of amplifications in MYC and genes from the PI3K pathway is independently observed in squamous lung cancer and triple negative breast cancer. In this work, we show that identifying co-occurrence of clonal driver SCNA genes could be used to tailor therapeutics for precision medicine.
Collapse
Affiliation(s)
- Filipe Correia Martins
- Department of Obstetrics and Gynaecology, University of Cambridge, Cambridge, UK.
- Experimental Medicine Initiative, University of Cambridge, Cambridge, UK.
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK.
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK.
- Department of Gynaecological Oncology, Cambridge University Hospitals, Cambridge, UK.
| | - Dominique-Laurent Couturier
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
- Medical Research Council Biostatistics Unit, University of Cambridge, Cambridge, UK
| | - Ines de Santiago
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | | | - Maria Vias
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Mihaela Angelova
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
| | - Deborah Sanders
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Anna Piskorz
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - James Hall
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | | | | | | | | | | | - Thomas B K Watkins
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
| | - Ionut G Funingana
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
- Department of Oncology, University of Cambridge, Cambridge, UK
| | - Helen Bolton
- Department of Gynaecological Oncology, Cambridge University Hospitals, Cambridge, UK
| | - Krishnayan Haldar
- Department of Gynaecological Oncology, Cambridge University Hospitals, Cambridge, UK
| | - John Latimer
- Department of Gynaecological Oncology, Cambridge University Hospitals, Cambridge, UK
| | - Peter Baldwin
- Department of Gynaecological Oncology, Cambridge University Hospitals, Cambridge, UK
| | - Robin Crawford
- Department of Gynaecological Oncology, Cambridge University Hospitals, Cambridge, UK
| | - Matthew Eldridge
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Bristi Basu
- Cambridge University Hospitals, Cambridge, UK
- Department of Oncology, University of Cambridge, Cambridge, UK
| | | | - Andrew W Mcpherson
- Computational Oncology, Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Centre, NYC, USA
| | - Nicholas McGranahan
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Kevin Litchfield
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
| | - Sohrab P Shah
- Computational Oncology, Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Centre, NYC, USA
| | - Iain McNeish
- Department of Surgery and Cancer, Imperial College of London, London, UK
| | - Carlos Caldas
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
- Department of Oncology, University of Cambridge, Cambridge, UK
| | - Gerard Evan
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Charles Swanton
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK.
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK.
| | - James D Brenton
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK.
- Department of Oncology, University of Cambridge, Cambridge, UK.
| |
Collapse
|
16
|
Deshpande M, Paniza T, Jalloul N, Nanjangud G, Twarowski J, Koren A, Zaninovic N, Zhan Q, Chadalavada K, Malkova A, Khiabanian H, Madireddy A, Rosenwaks Z, Gerhardt J. Error-prone repair of stalled replication forks drives mutagenesis and loss of heterozygosity in haploinsufficient BRCA1 cells. Mol Cell 2022; 82:3781-3793.e7. [PMID: 36099913 DOI: 10.1016/j.molcel.2022.08.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 04/21/2022] [Accepted: 08/16/2022] [Indexed: 01/05/2023]
Abstract
Germline mutations in the BRCA genes are associated with a higher risk of carcinogenesis, which is linked to an increased mutation rate and loss of the second unaffected BRCA allele (loss of heterozygosity, LOH). However, the mechanisms triggering mutagenesis are not clearly understood. The BRCA genes contain high numbers of repetitive DNA sequences. We detected replication forks stalling, DNA breaks, and deletions at these sites in haploinsufficient BRCA cells, thus identifying the BRCA genes as fragile sites. Next, we found that stalled forks are repaired by error-prone pathways, such as microhomology-mediated break-induced replication (MMBIR) in haploinsufficient BRCA1 breast epithelial cells. We detected MMBIR mutations in BRCA1 tumor cells and noticed deletions-insertions (>50 bp) at the BRCA1 genes in BRCA1 patients. Altogether, these results suggest that under stress, error-prone repair of stalled forks is upregulated and induces mutations, including complex genomic rearrangements at the BRCA genes (LOH), in haploinsufficient BRCA1 cells.
Collapse
Affiliation(s)
- Madhura Deshpande
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Theodore Paniza
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Nahed Jalloul
- Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ 08903, USA
| | - Gouri Nanjangud
- Molecular Cytogenetics Core Facility, Sloan Kettering Institute, New York, NY 10065, USA
| | - Jerzy Twarowski
- Department of Biology, University of Iowa, Iowa City, IA 52242, USA
| | - Amnon Koren
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14850, USA
| | - Nikica Zaninovic
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Qiansheng Zhan
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Kalyani Chadalavada
- Molecular Cytogenetics Core Facility, Sloan Kettering Institute, New York, NY 10065, USA
| | - Anna Malkova
- Department of Biology, University of Iowa, Iowa City, IA 52242, USA
| | - Hossein Khiabanian
- Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ 08903, USA
| | - Advaitha Madireddy
- Department of Pediatric Hematology/Oncology, Rutgers University, New Brunswick, NJ 08903, USA
| | - Zev Rosenwaks
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Jeannine Gerhardt
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY 10021, USA; Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY 10021, USA.
| |
Collapse
|
17
|
Predominance of BRCA2 Mutation and Estrogen Receptor Positivity in Unselected Breast Cancer with BRCA1 or BRCA2 Mutation. Cancers (Basel) 2022; 14:cancers14133266. [PMID: 35805038 PMCID: PMC9265086 DOI: 10.3390/cancers14133266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/30/2022] [Accepted: 06/30/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary We performed a meataanalysis of BRCA1 or BRCA2 germline pathogenic or likely pathogenic variant (gBRCA) in 108,699 unselected breast cancer patients and in 238,972 unaffected individuals. The metanalysis shows that 3.4% unselected breast cancer patients have a gBRCA. In unselected breast cancer patients with gBRCA, more than half of tumors are estrogen receptor-positive. 0.5% of unaffected individuals of the studied populations are gBRCA carriers. The frequency of gBRCA2 and gBRCA1 heterozygosity is estimated at 1/288 and 1/434, respectively. In unselected breast cancer and in unfafected individuals gBRCA2 is more frequent than gBRCA1. Abstract Background: Poly(ADP-ribose) polymerase 1 inhibitor (PARPi) agents can improve progression-free survival of patients with breast cancer who carry a germline BRCA1 or BRCA2 pathogenic or likely pathogenic variant (gBRCA) in both the metastatic and adjuvant setting. Therefore, we need to reassess the frequency of gBRCA1 and gBRCA2 in order to redefine the criteria for women and tumor phenotype that should be tested. Objective: We studied the relative distribution of gBRCA1 and gBRCA2 in unselected populations of women with breast cancer and in unaffected individuals. We also analyzed the proportion of estrogen receptor (ER)-positive (ER+) tumors in unselected breast cancer patients with gBRCA. Design: We performed a meta-analysis of studies of unselected breast cancer that analyzed the relative contribution of gBRCA1 versus gBRCA2 among unselected breast cancer cases in gBRCA carriers. We then performed a meta-analysis of gBRCA carriage in unaffected individuals from genome-wide population studies, the gnomAD databank, and case–control studies. Results: The BRCA2 gene was involved in 54% of breast cancer cases in unselected patients with gBRCA (n = 108,699) and 60% of unaffected individuals (n = 238,973) as compared with 38% of the largest gBRCA family cohort (n = 29,700). The meta-analysis showed that 1.66% (95% CI 1.08–2.54) and 1.71% (95% CI 1.33–2.2) of unselected breast cancer patients carried gBRCA1 and gBRCA2, respectively. In a population of unaffected individuals, the frequency of heterozygosity for gBRCA1 and gBRCA2 was estimated at 1/434 and 1/288, respectively. Nearly 0.5% of unaffected individuals in the studied populations carried a gBRCA. Carriage of a gBRCA was 2.5% for patients with ER+ tumors (95% CI 1.5–4.1) and 5.7% (95% CI 5.1–6.2) for those with ER- tumors. Overall, 58% of breast tumors occurring in women carrying a gBRCA were ER+ (n = 86,870). Conclusions: This meta-analysis showed that gBRCA2 carriage is predominant in unselected breast cancer patients and unaffected individuals. ER+ tumors among women with gBRCA-related breast cancer are predominant and have been underestimated. Because PARPi agents improve progression-free survival with ER+ gBRCA breast cancer in most clinical trials, breast cancer should be considered, regardless of ER status, for BRCA1/2 screening for therapeutic purposes.
Collapse
|
18
|
PTEN alterations in sporadic and BRCA1-associated triple negative breast carcinomas. Cancer Genet 2022; 264-265:8-15. [DOI: 10.1016/j.cancergen.2022.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/31/2022] [Accepted: 02/21/2022] [Indexed: 11/23/2022]
|
19
|
Value of the loss of heterozygosity to BRCA1 variant classification. NPJ Breast Cancer 2022; 8:9. [PMID: 35039532 PMCID: PMC8764043 DOI: 10.1038/s41523-021-00361-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 09/21/2021] [Indexed: 11/25/2022] Open
Abstract
At least 10% of the BRCA1/2 tests identify variants of uncertain significance (VUS) while the distinction between pathogenic variants (PV) and benign variants (BV) remains particularly challenging. As a typical tumor suppressor gene, the inactivation of the second wild-type (WT) BRCA1 allele is expected to trigger cancer initiation. Loss of heterozygosity (LOH) of the WT allele is the most frequent mechanism for the BRCA1 biallelic inactivation. To evaluate if LOH can be an effective predictor of BRCA1 variant pathogenicity, we carried out LOH analysis on DNA extracted from 90 breast and seven ovary tumors diagnosed in 27 benign and 55 pathogenic variant carriers. Further analyses were conducted in tumors with PVs yet without loss of the WT allele: BRCA1 promoter hypermethylation, next-generation sequencing (NGS) of BRCA1/2, and BRCAness score. Ninety-seven tumor samples were analyzed from 26 different BRCA1 variants. A relatively stable pattern of LOH (65.4%) of WT allele for PV tumors was observed, while the allelic balance (63%) or loss of variant allele (15%) was generally seen for carriers of BV. LOH data is a useful complementary argument for BRCA1 variant classification.
Collapse
|
20
|
BRCA1/Trp53 heterozygosity and replication stress drive esophageal cancer development in a mouse model. Proc Natl Acad Sci U S A 2021; 118:2108421118. [PMID: 34607954 PMCID: PMC8521688 DOI: 10.1073/pnas.2108421118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2021] [Indexed: 12/13/2022] Open
Abstract
BRCA1 germline mutations are associated with an increased risk of breast and ovarian cancer. Recent findings of others suggest that BRCA1 mutation carriers also bear an increased risk of esophageal and gastric cancer. Here, we employ a Brca1/Trp53 mouse model to show that unresolved replication stress (RS) in BRCA1 heterozygous cells drives esophageal tumorigenesis in a model of the human equivalent. This model employs 4-nitroquinoline-1-oxide (4NQO) as an RS-inducing agent. Upon drinking 4NQO-containing water, Brca1 heterozygous mice formed squamous cell carcinomas of the distal esophagus and forestomach at a much higher frequency and speed (∼90 to 120 d) than did wild-type (WT) mice, which remained largely tumor free. Their esophageal tissue, but not that of WT control mice, revealed evidence of overt RS as reflected by intracellular CHK1 phosphorylation and 53BP1 staining. These Brca1 mutant tumors also revealed higher genome mutation rates than those of control animals; the mutational signature SBS4, which is associated with tobacco-induced tumorigenesis; and a loss of Brca1 heterozygosity (LOH). This uniquely accelerated Brca1 tumor model is also relevant to human esophageal squamous cell carcinoma, an often lethal tumor.
Collapse
|
21
|
Ruiz de Garibay G, Fernandez-Garcia I, Mazoyer S, Leme de Calais F, Ameri P, Vijayakumar S, Martinez-Ruiz H, Damiola F, Barjhoux L, Thomassen M, Andersen LVB, Herranz C, Mateo F, Palomero L, Espín R, Gómez A, García N, Jimenez D, Bonifaci N, Extremera AI, Castaño J, Raya A, Eyras E, Puente XS, Brunet J, Lázaro C, Radice P, Barnes DR, Antoniou AC, Spurdle AB, de la Hoya M, Baralle D, Barcellos-Hoff MH, Pujana MA. Altered regulation of BRCA1 exon 11 splicing is associated with breast cancer risk in carriers of BRCA1 pathogenic variants. Hum Mutat 2021; 42:1488-1502. [PMID: 34420246 DOI: 10.1002/humu.24276] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 08/11/2021] [Accepted: 08/18/2021] [Indexed: 11/12/2022]
Abstract
Germline pathogenic variants in BRCA1 confer a high risk of developing breast and ovarian cancer. The BRCA1 exon 11 (formally exon 10) is one of the largest exons and codes for the nuclear localization signals of the corresponding gene product. This exon can be partially or entirely skipped during pre-mRNA splicing, leading to three major in-frame isoforms that are detectable in most cell types and tissue, and in normal and cancer settings. However, it is unclear whether the splicing imbalance of this exon is associated with cancer risk. Here we identify a common genetic variant in intron 10, rs5820483 (NC_000017.11:g.43095106_43095108dup), which is associated with exon 11 isoform expression and alternative splicing, and with the risk of breast cancer, but not ovarian cancer, in BRCA1 pathogenic variant carriers. The identification of this genetic effect was confirmed by analogous observations in mouse cells and tissue in which a loxP sequence was inserted in the syntenic intronic region. The prediction that the rs5820483 minor allele variant would create a binding site for the splicing silencer hnRNP A1 was confirmed by pull-down assays. Our data suggest that perturbation of BRCA1 exon 11 splicing modifies the breast cancer risk conferred by pathogenic variants of this gene.
Collapse
Affiliation(s)
- Gorka Ruiz de Garibay
- ProCURE, Oncobell, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain
| | - Ignacio Fernandez-Garcia
- Department of Radiation Oncology, New York University School of Medicine, New York, New York, USA
| | - Sylvie Mazoyer
- Equipe GENDEV, INSERM U1028, CNRS UMR5292, Centre de Recherche en Neurosciences de Lyon, Université Lyon 1, Université St Etienne, Lyon, France
| | - Flavia Leme de Calais
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Pietro Ameri
- Department of Radiation Oncology, New York University School of Medicine, New York, New York, USA
| | - Sangeetha Vijayakumar
- Department of Radiation Oncology, New York University School of Medicine, New York, New York, USA
| | - Haydeliz Martinez-Ruiz
- Department of Radiation Oncology, New York University School of Medicine, New York, New York, USA
| | - Francesca Damiola
- Department of Biopathology, Pathology Research Platform, Centre Léon Bérard, Lyon, France
| | - Laure Barjhoux
- Department of Biopathology, Pathology Research Platform, Centre Léon Bérard, Lyon, France
| | - Mads Thomassen
- Department of Clinical Genetics, Odense University Hospital, Odense C, Denmark
| | - Lars V B Andersen
- Department of Clinical Genetics, Odense University Hospital, Odense C, Denmark
| | - Carmen Herranz
- ProCURE, Oncobell, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain
| | - Francesca Mateo
- ProCURE, Oncobell, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain
| | - Luis Palomero
- ProCURE, Oncobell, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain
| | - Roderic Espín
- ProCURE, Oncobell, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain
| | - Antonio Gómez
- Gene Regulation, Stem Cells and Cancer, Center for Genomic Regulation (CRG), Barcelona, Catalonia, Spain
| | - Nadia García
- ProCURE, Oncobell, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain
| | - Daniel Jimenez
- ProCURE, Oncobell, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain
| | - Núria Bonifaci
- ProCURE, Oncobell, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain
| | - Ana I Extremera
- ProCURE, Oncobell, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain
| | - Julio Castaño
- Regenerative Medicine Program, Bellvitge Institute for Biomedical Research (IDIBELL) and Program for Clinical Translation of Regenerative Medicine in Catalonia (P-CMRC), L'Hospitalet del Llobregat, Barcelona, Spain
| | - Angel Raya
- Regenerative Medicine Program, Bellvitge Institute for Biomedical Research (IDIBELL) and Program for Clinical Translation of Regenerative Medicine in Catalonia (P-CMRC), L'Hospitalet del Llobregat, Barcelona, Spain.,Centre for Networked Biomedical Research on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain.,Catalan Institution for Research and Advanced Studies, Barcelona, Spain
| | - Eduardo Eyras
- Catalan Institution for Research and Advanced Studies, Barcelona, Spain.,Department of Genome Sciences, The John Curtin School of Medical Research, EMBL Australia Partner Laboratory Network, Australian National University, Canberra, Australia
| | - Xose S Puente
- Department of Biochemistry and Molecular Biology, University Institute of Oncology, University of Oviedo, Oviedo, Spain.,Biomedical Research Centre in Cancer (CIBERONC), Instituto Salud Carlos III, Madrid, Spain
| | - Joan Brunet
- Hereditary Cancer Program, Catalan Institute of Oncology, Oncobell, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, and Girona Biomedical Research Institute (IDIBGI), Girona, Catalonia, Spain
| | - Conxi Lázaro
- Biomedical Research Centre in Cancer (CIBERONC), Instituto Salud Carlos III, Madrid, Spain.,Hereditary Cancer Program, Catalan Institute of Oncology, Oncobell, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, and Girona Biomedical Research Institute (IDIBGI), Girona, Catalonia, Spain
| | -
- Unité Mixte de Génétique Constitutionnelle des Cancers Fréquents, Hospices Civils de Lyon/Centre Léon Bérard, Lyon, France
| | -
- Department of Public Health and Primary Care, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, UK
| | - Paolo Radice
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Research Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Daniel R Barnes
- Department of Public Health and Primary Care, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, UK
| | - Antonis C Antoniou
- Department of Public Health and Primary Care, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, UK
| | - Amanda B Spurdle
- Genetics and Computational Division, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Miguel de la Hoya
- Biomedical Research Centre in Cancer (CIBERONC), Instituto Salud Carlos III, Madrid, Spain.,Molecular Oncology Laboratory, Hospital Clínico San Carlos, Health Research Institute of the Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Diana Baralle
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK.,Wessex Clinical Genetics Service, Southampton University Hospital NHS Trust, Southampton, UK
| | - Mary Helen Barcellos-Hoff
- Department of Radiation Oncology, New York University School of Medicine, New York, New York, USA.,Department of Radiation Oncology, School of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Miquel A Pujana
- ProCURE, Oncobell, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Catalonia, Spain
| |
Collapse
|
22
|
Yoshino Y, Fang Z, Qi H, Kobayashi A, Chiba N. Dysregulation of the centrosome induced by BRCA1 deficiency contributes to tissue-specific carcinogenesis. Cancer Sci 2021; 112:1679-1687. [PMID: 33606355 PMCID: PMC8088922 DOI: 10.1111/cas.14859] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/11/2021] [Accepted: 02/16/2021] [Indexed: 12/12/2022] Open
Abstract
Alterations in breast cancer gene 1 (BRCA1), a tumor suppressor gene, increase the risk of breast and ovarian cancers. BRCA1 forms a heterodimer with BRCA1-associated RING domain protein 1 (BARD1) and functions in multiple cellular processes, including DNA repair and centrosome regulation. BRCA1 acts as a tumor suppressor by promoting homologous recombination (HR) repair, and alterations in BRCA1 cause HR deficiency, not only in breast and ovarian tissues but also in other tissues. The molecular mechanisms underlying BRCA1 alteration-induced carcinogenesis remain unclear. Centrosomes are the major microtubule-organizing centers and function in bipolar spindle formation. The regulation of centrosome number is critical for chromosome segregation in mitosis, which maintains genomic stability. BRCA1/BARD1 function in centrosome regulation together with Obg-like ATPase (OLA1) and receptor for activating protein C kinase 1 (RACK1). Cancer-derived variants of BRCA1, BARD1, OLA1, and RACK1 do not interact, and aberrant expression of these proteins results in abnormal centrosome duplication in mammary-derived cells, and rarely in other cell types. RACK1 is involved in centriole duplication in the S phase by promoting polo-like kinase 1 activation by Aurora A, which is critical for centrosome duplication. Centriole number is higher in cells derived from mammary tissues compared with in those derived from other tissues, suggesting that tissue-specific centrosome characterization may shed light on the tissue specificity of BRCA1-associated carcinogenesis. Here, we explored the role of the BRCA1-containing complex in centrosome regulation and the effect of its deficiency on tissue-specific carcinogenesis.
Collapse
Affiliation(s)
- Yuki Yoshino
- Department of Cancer BiologyInstitute of Aging, Development, and CancerTohoku UniversitySendaiJapan
- Laboratory of Cancer BiologyGraduate School of Life SciencesTohoku UniversitySendaiJapan
- Department of Cancer BiologyTohoku University Graduate School of MedicineSendaiJapan
| | - Zhenzhou Fang
- Department of Cancer BiologyInstitute of Aging, Development, and CancerTohoku UniversitySendaiJapan
- Department of Cancer BiologyTohoku University Graduate School of MedicineSendaiJapan
| | - Huicheng Qi
- Department of Cancer BiologyInstitute of Aging, Development, and CancerTohoku UniversitySendaiJapan
- Department of Cancer BiologyTohoku University Graduate School of MedicineSendaiJapan
| | - Akihiro Kobayashi
- Department of Cancer BiologyInstitute of Aging, Development, and CancerTohoku UniversitySendaiJapan
- Department of Cancer BiologyTohoku University Graduate School of MedicineSendaiJapan
| | - Natsuko Chiba
- Department of Cancer BiologyInstitute of Aging, Development, and CancerTohoku UniversitySendaiJapan
- Laboratory of Cancer BiologyGraduate School of Life SciencesTohoku UniversitySendaiJapan
- Department of Cancer BiologyTohoku University Graduate School of MedicineSendaiJapan
| |
Collapse
|
23
|
Biswas A, De S. Drivers of dynamic intratumor heterogeneity and phenotypic plasticity. Am J Physiol Cell Physiol 2021; 320:C750-C760. [PMID: 33657326 PMCID: PMC8163571 DOI: 10.1152/ajpcell.00575.2020] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 02/08/2021] [Accepted: 02/25/2021] [Indexed: 12/19/2022]
Abstract
Cancer is a clonal disease, i.e., all tumor cells within a malignant lesion trace their lineage back to a precursor somatic cell that acquired oncogenic mutations during development and aging. And yet, those tumor cells tend to have genetic and nongenetic variations among themselves-which is denoted as intratumor heterogeneity. Although some of these variations are inconsequential, others tend to contribute to cell state transition and phenotypic heterogeneity, providing a substrate for somatic evolution. Tumor cell phenotypes can dynamically change under the influence of genetic mutations, epigenetic modifications, and microenvironmental contexts. Although epigenetic and microenvironmental changes are adaptive, genetic mutations are usually considered permanent. Emerging reports suggest that certain classes of genetic alterations show extensive reversibility in tumors in clinically relevant timescales, contributing as major drivers of dynamic intratumor heterogeneity and phenotypic plasticity. Dynamic heterogeneity and phenotypic plasticity can confer resistance to treatment, promote metastasis, and enhance evolvability in cancer. Here, we first highlight recent efforts to characterize intratumor heterogeneity at genetic, epigenetic, and microenvironmental levels. We then discuss phenotypic plasticity and cell state transition by tumor cells, under the influence of genetic and nongenetic determinants and their clinical significance in classification of tumors and therapeutic decision-making.
Collapse
Affiliation(s)
- Antara Biswas
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Subhajyoti De
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| |
Collapse
|
24
|
Inagaki-Kawata Y, Yoshida K, Kawaguchi-Sakita N, Kawashima M, Nishimura T, Senda N, Shiozawa Y, Takeuchi Y, Inoue Y, Sato-Otsubo A, Fujii Y, Nannya Y, Suzuki E, Takada M, Tanaka H, Shiraishi Y, Chiba K, Kataoka Y, Torii M, Yoshibayashi H, Yamagami K, Okamura R, Moriguchi Y, Kato H, Tsuyuki S, Yamauchi A, Suwa H, Inamoto T, Miyano S, Ogawa S, Toi M. Genetic and clinical landscape of breast cancers with germline BRCA1/2 variants. Commun Biol 2020; 3:578. [PMID: 33067557 PMCID: PMC7567851 DOI: 10.1038/s42003-020-01301-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 09/15/2020] [Indexed: 12/24/2022] Open
Abstract
The genetic and clinical characteristics of breast tumors with germline variants, including their association with biallelic inactivation through loss-of-heterozygosity (LOH) and second somatic mutations, remain elusive. We analyzed germline variants of 11 breast cancer susceptibility genes for 1,995 Japanese breast cancer patients, and identified 101 (5.1%) pathogenic variants, including 62 BRCA2 and 15 BRCA1 mutations. Genetic analysis of 64 BRCA1/2-mutated tumors including TCGA dataset tumors, revealed an association of biallelic inactivation with more extensive deletions, copy neutral LOH, gain with LOH and younger onset. Strikingly, TP53 and RB1 mutations were frequently observed in BRCA1- (94%) and BRCA2- (9.7%) mutated tumors with biallelic inactivation. Inactivation of TP53 and RB1 together with BRCA1 and BRCA2, respectively, involved LOH of chromosomes 17 and 13. Notably, BRCA1/2 tumors without biallelic inactivation were indistinguishable from those without germline variants. Our study highlights the heterogeneity and unique clonal selection pattern in breast cancers with germline variants. Yukiko Inagaki-Kawata et al. report an analysis of germline variants in breast cancer susceptibility genes in 1,995 Japanese breast cancer patients. They find that 5.1% of the patients carry germline variants in cancer-linked genes and investigate the characteristics of patients with germline mutations in BRCA1/2.
Collapse
Affiliation(s)
- Yukiko Inagaki-Kawata
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan.,Department of Breast Surgery, Kyoto University, Kyoto, Japan
| | - Kenichi Yoshida
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | | | | | - Tomomi Nishimura
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan.,Department of Breast Surgery, Kyoto University, Kyoto, Japan
| | - Noriko Senda
- Department of Breast Surgery, Kyoto University, Kyoto, Japan
| | - Yusuke Shiozawa
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Yasuhide Takeuchi
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan.,Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, Japan.,Department of Diagnostic Pathology, Kyoto University, Kyoto, Japan
| | - Yoshikage Inoue
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Aiko Sato-Otsubo
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Yoichi Fujii
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Yasuhito Nannya
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Eiji Suzuki
- Department of Breast Surgery, Kyoto University, Kyoto, Japan
| | - Masahiro Takada
- Department of Breast Surgery, Kyoto University, Kyoto, Japan
| | - Hiroko Tanaka
- Laboratory of Sequence Analysis, Human Genome Centre, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Yuichi Shiraishi
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kenichi Chiba
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Yuki Kataoka
- Hospital Care Research Unit/Department of Respiratory Medicine, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Masae Torii
- Department of Breast Surgery, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | - Hiroshi Yoshibayashi
- Department of Breast Surgery, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | | | - Ryuji Okamura
- Department of Breast Surgery, Yamatotakada Municipal Hospital, Yamatotakada, Japan
| | | | - Hironori Kato
- Department of Breast Surgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Shigeru Tsuyuki
- Department of Breast Surgery, Osaka Red Cross Hospital, Osaka, Japan
| | - Akira Yamauchi
- Department of Breast Surgery, Kitano Hospital, Osaka, Japan
| | - Hirofumi Suwa
- Department of Breast Surgery, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | | | - Satoru Miyano
- Laboratory of Sequence Analysis, Human Genome Centre, Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Seishi Ogawa
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan. .,Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, Japan. .,Department of Medicine, Centre for Haematology and Regenerative Medicine, Karolinska Institute, Stockholm, Sweden.
| | - Masakazu Toi
- Department of Breast Surgery, Kyoto University, Kyoto, Japan.
| |
Collapse
|
25
|
Martins FC, Couturier DL, Paterson A, Karnezis AN, Chow C, Nazeran TM, Odunsi A, Gentry-Maharaj A, Vrvilo A, Hein A, Talhouk A, Osorio A, Hartkopf AD, Brooks-Wilson A, DeFazio A, Fischer A, Hartmann A, Hernandez BY, McCauley BM, Karpinskyj C, de Sousa CB, Høgdall C, Tiezzi DG, Herpel E, Taran FA, Modugno F, Keeney G, Nelson G, Steed H, Song H, Luk H, Benitez J, Alsop J, Koziak JM, Lester J, Rothstein JH, de Andrade JM, Lundvall L, Paz-Ares L, Robles-Díaz L, Wilkens LR, Garcia MJ, Intermaggio MP, Alcaraz ML, Brett MA, Beckmann MW, Jimenez-Linan M, Anglesio M, Carney ME, Schneider M, Traficante N, Pejovic N, Singh N, Le N, Sinn P, Ghatage P, Erber R, Edwards R, Vierkant R, Ness RB, Leung S, Orsulic S, Brucker SY, Kaufmann SH, Fereday S, Gayther S, Winham SJ, Kommoss S, Pejovic T, Longacre TA, McGuire V, Rhenius V, Sieh W, Shvetsov YB, Whittemore AS, Staebler A, Karlan BY, Rodriguez-Antona C, Bowtell DD, Goode EL, Høgdall E, Candido Dos Reis FJ, Gronwald J, Chang-Claude J, Moysich KB, Kelemen LE, Cook LS, Goodman MT, Fasching PA, Crawford R, Deen S, Menon U, Huntsman DG, Köbel M, Ramus SJ, Pharoah PDP, Brenton JD. Clinical and pathological associations of PTEN expression in ovarian cancer: a multicentre study from the Ovarian Tumour Tissue Analysis Consortium. Br J Cancer 2020; 123:793-802. [PMID: 32555365 PMCID: PMC7463007 DOI: 10.1038/s41416-020-0900-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 03/14/2020] [Accepted: 04/29/2020] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND PTEN loss is a putative driver in histotypes of ovarian cancer (high-grade serous (HGSOC), endometrioid (ENOC), clear cell (CCOC), mucinous (MOC), low-grade serous (LGSOC)). We aimed to characterise PTEN expression as a biomarker in epithelial ovarian cancer in a large population-based study. METHODS Tumours from 5400 patients from a multicentre observational, prospective cohort study of the Ovarian Tumour Tissue Analysis Consortium were used to evaluate associations between immunohistochemical PTEN patterns and overall survival time, age, stage, grade, residual tumour, CD8+ tumour-infiltrating lymphocytes (TIL) counts, expression of oestrogen receptor (ER), progesterone receptor (PR) and androgen receptor (AR) by means of Cox proportional hazard models and generalised Cochran-Mantel-Haenszel tests. RESULTS Downregulation of cytoplasmic PTEN expression was most frequent in ENOC (most frequently in younger patients; p value = 0.0001) and CCOC and was associated with longer overall survival in HGSOC (hazard ratio: 0.78, 95% CI: 0.65-0.94, p value = 0.022). PTEN expression was associated with ER, PR and AR expression (p values: 0.0008, 0.062 and 0.0002, respectively) in HGSOC and with lower CD8 counts in CCOC (p value < 0.0001). Heterogeneous expression of PTEN was more prevalent in advanced HGSOC (p value = 0.019) and associated with higher CD8 counts (p value = 0.0016). CONCLUSIONS PTEN loss is a frequent driver in ovarian carcinoma associating distinctly with expression of hormonal receptors and CD8+ TIL counts in HGSOC and CCOC histotypes.
Collapse
MESH Headings
- Adenocarcinoma, Clear Cell/enzymology
- Adenocarcinoma, Clear Cell/mortality
- Adenocarcinoma, Clear Cell/pathology
- Age Factors
- Biomarkers, Tumor/biosynthesis
- Biomarkers, Tumor/genetics
- Carcinoma, Ovarian Epithelial/enzymology
- Carcinoma, Ovarian Epithelial/genetics
- Carcinoma, Ovarian Epithelial/mortality
- Carcinoma, Ovarian Epithelial/pathology
- Cohort Studies
- Down-Regulation
- Female
- Gene Knockout Techniques
- Humans
- Middle Aged
- Neoplasm Staging
- Ovarian Neoplasms/enzymology
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/mortality
- Ovarian Neoplasms/pathology
- PTEN Phosphohydrolase/biosynthesis
- PTEN Phosphohydrolase/deficiency
- PTEN Phosphohydrolase/genetics
- Prospective Studies
- Receptors, Androgen/biosynthesis
- Receptors, Estrogen/biosynthesis
- Receptors, Progesterone/biosynthesis
- Tissue Array Analysis
- Tumor Suppressor Proteins/biosynthesis
- Tumor Suppressor Proteins/deficiency
Collapse
Affiliation(s)
- Filipe Correia Martins
- Department of Obstetrics and Gynaecology, University of Cambridge, Cambridge, England
- Experimental Medicine Initiative, University of Cambridge, Cambridge, England
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, England
| | - Dominique-Laurent Couturier
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, England
| | - Anna Paterson
- Department of Histopathology, Addenbrookes Hospital, Cambridge, England
| | - Anthony N Karnezis
- Department of Pathology and Laboratory Medicine, University of California Davis Medical Center, Sacramento, CA, USA
| | - Christine Chow
- OVCARE, Vancouver Coastal Health Research Centre, Vancouver General Hospital and University of British Columbia, Vancouver, BC, Canada
| | - Tayyebeh M Nazeran
- Department of Molecular Oncology and Department of Pathology and Laboratory Medicine, BC Cancer Research Centre, BC Cancer, Vancouver, BC, Canada
| | - Adekunle Odunsi
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, USA
| | | | - Aleksandra Vrvilo
- Department of Ob/Gyn, Oregon Health & Science University, Portland, OR, USA
| | - Alexander Hein
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Aline Talhouk
- Department of Molecular Oncology and Department of Pathology and Laboratory Medicine, BC Cancer Research Centre, BC Cancer, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada
- Department of Molecular Oncology, BC Cancer Research Centre, BC Cancer, Vancouver, BC, Canada
| | - Ana Osorio
- Human Genetics Group, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Andreas D Hartkopf
- Department of Women's Health, Tübingen University Hospital, Tübingen, Germany
| | - Angela Brooks-Wilson
- Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - Anna DeFazio
- Centre for Cancer Research, The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, Australia
- Department of Gynaecological Oncology, Westmead Hospital, Sydney, NSW, Australia
| | - Anna Fischer
- Institute of Pathology, Tübingen University Hospital, Tübingen, Germany
| | - Arndt Hartmann
- Institute of Pathology, University Hospital Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | | | - Bryan M McCauley
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Chloe Karpinskyj
- MRC CTU, Institute of Clinical Trials and Methodology, University College London, London, England
| | - Christiani B de Sousa
- Department of Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Claus Høgdall
- Department of Gynaecology, Rigshospitalet, University Hospital Copenhagen, Blegdamsvej 9, 2100, København, Denmark
| | - Daniel G Tiezzi
- Department of Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Esther Herpel
- NCT Tissue Bank, National Center for Tumour Diseases, Heidelberg, Germany
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Florin Andrei Taran
- Department of Women's Health, Tübingen University Hospital, Tübingen, Germany
| | - Francesmary Modugno
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Gary Keeney
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Gregg Nelson
- Department of Oncology, Division of Gynecologic Oncology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Helen Steed
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Royal Alexandra Hospital, Edmonton, AB, Canada
| | - Honglin Song
- Department of Oncology, Strangeways Research Laboratory, University of Cambridge, Cambridge, England
| | - Hugh Luk
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Javier Benitez
- Human Genetics Group, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Jennifer Alsop
- Department of Oncology, Strangeways Research Laboratory, University of Cambridge, Cambridge, England
| | | | - Jenny Lester
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Joseph H Rothstein
- Department of Population Health Science and Policy and Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jurandyr M de Andrade
- Department of Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Lene Lundvall
- Department of Gynaecology, Rigshospitalet, University Hospital Copenhagen, Blegdamsvej 9, 2100, København, Denmark
| | - Luis Paz-Ares
- Spanish National Cancer Research Center, CNIO Lung Cancer Clinical Research Unit, New York, NY, USA
| | - Luis Robles-Díaz
- Familial Cancer Unit and Medical Oncology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Lynne R Wilkens
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Maria J Garcia
- Human Genetics Group, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Maria P Intermaggio
- School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| | - Marie-Lyne Alcaraz
- Department of Oncology, Strangeways Research Laboratory, University of Cambridge, Cambridge, England
| | - Mary A Brett
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
| | - Matthias W Beckmann
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | | | - Michael Anglesio
- OVCARE, Vancouver Coastal Health Research Centre, Vancouver General Hospital and University of British Columbia, Vancouver, BC, Canada
- Department of Molecular Oncology and Department of Pathology and Laboratory Medicine, BC Cancer Research Centre, BC Cancer, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada
| | - Michael E Carney
- John A. Burns School of Medicine, Department of Obstetrics and Gynecology, University of Hawaii, Honolulu, HI, USA
| | - Michael Schneider
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Nadia Traficante
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
- Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia
| | - Nadja Pejovic
- School of Medicine, St. Louis University, St. Louis, MO, 63103, USA
| | - Naveena Singh
- Department of Cellular Pathology, Barts Health National Health Service Trust, London, England
| | - Nhu Le
- Cancer Control Research, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - Peter Sinn
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Prafull Ghatage
- Department of Oncology, Division of Gynecologic Oncology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Ramona Erber
- Institute of Pathology, University Hospital Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Robert Edwards
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Robert Vierkant
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Roberta B Ness
- University of Texas School of Public Health, Houston, TX, USA
| | - Samuel Leung
- OVCARE, Vancouver Coastal Health Research Centre, Vancouver General Hospital and University of British Columbia, Vancouver, BC, Canada
| | - Sandra Orsulic
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Sara Y Brucker
- Department of Women's Health, Tübingen University Hospital, Tübingen, Germany
| | - Scott H Kaufmann
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Sian Fereday
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
- Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia
| | - Simon Gayther
- Cedars-Sinai Center for Bioinformatics and Functional Genomics, Los Angeles, CA, USA
| | - Stacey J Winham
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Stefan Kommoss
- Department of Women's Health, Tübingen University Hospital, Tübingen, Germany
| | - Tanja Pejovic
- Department of Ob/Gyn, Oregon Health & Science University, Portland, OR, USA
| | - Teri A Longacre
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Valerie McGuire
- Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA, USA
| | - Valerie Rhenius
- Department of Oncology, Strangeways Research Laboratory, University of Cambridge, Cambridge, England
| | - Weiva Sieh
- Department of Population Health Science and Policy and Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yurii B Shvetsov
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
- Department of Pathology, University of Melbourne, Melbourne, VIC, Australia
| | - Alice S Whittemore
- Department of Health Research and Policy and Department of Biomedical Data Science, Stanford University School of Medicine, Stanford, CA, USA
| | - Annette Staebler
- Institute of Pathology, Tübingen University Hospital, Tübingen, Germany
| | - Beth Y Karlan
- Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Cristina Rodriguez-Antona
- Hereditary Endocrine Cancer Group, Spanish National Cancer Research Center (CNIO), Madrid, Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III Madrid, Madrid, Spain
| | - David D Bowtell
- Peter MacCallum Cancer Centre, East Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Parkville, VIC, Australia
- The Garvan Institute, Sydney, NSW, Australia
| | - Ellen L Goode
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Estrid Høgdall
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
- Molecular Unit, Department of Pathology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
- Cancer Genomics Program, Research Department, Molecular Unit, Department of Pathology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Francisco J Candido Dos Reis
- Department of Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Jacek Gronwald
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kirsten B Moysich
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Linda E Kelemen
- Department of Public Health Sciences, Medical University of South Carolina and Hollings Cancer Center, Charleston, SC, USA
| | - Linda S Cook
- Division of Epidemiology, Biostatistics and Preventative Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Marc T Goodman
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Peter A Fasching
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
- David Geffen School of Medicine, Department of Medicine Division of Hematology and Oncology, University of California at Los Angeles, Los Angeles, CA, 90095, USA
| | - Robin Crawford
- Division of Oncology, Addenbrookes Hospital, Cambridge, England
| | - Suha Deen
- Department of Histopathology, Queen's Medical Centre, Nottingham University Hospitals NHS Trust, Nottingham, England
| | - Usha Menon
- MRC CTU, Institute of Clinical Trials and Methodology, University College London, London, England
| | - David G Huntsman
- OVCARE, Vancouver Coastal Health Research Centre, Vancouver General Hospital and University of British Columbia, Vancouver, BC, Canada
- Department of Molecular Oncology and Department of Pathology and Laboratory Medicine, BC Cancer Research Centre, BC Cancer, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada
- Department of Molecular Oncology, BC Cancer Research Centre, BC Cancer, Vancouver, BC, Canada
| | - Martin Köbel
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
| | - Susan J Ramus
- School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
- The Garvan Institute, Sydney, NSW, Australia
| | - Paul D P Pharoah
- Department of Oncology, Strangeways Research Laboratory, University of Cambridge, Cambridge, England.
- Department of Public Health and Primary Care, Strangeways Research Laboratory, University of Cambridge, Worts Causeway, Cambridge, England.
- Cancer Research UK Cambridge Centre, University of Cambridge, Cambridge, England.
| | - James D Brenton
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, England.
- Cancer Research UK Cambridge Centre, University of Cambridge, Cambridge, England.
- Department of Oncology, Hutchison/MRC Research Centre, University of Cambridge, Cambridge, England.
| |
Collapse
|
26
|
Krais JJ, Johnson N. BRCA1 Mutations in Cancer: Coordinating Deficiencies in Homologous Recombination with Tumorigenesis. Cancer Res 2020; 80:4601-4609. [PMID: 32747362 PMCID: PMC7641968 DOI: 10.1158/0008-5472.can-20-1830] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/15/2020] [Accepted: 07/29/2020] [Indexed: 01/08/2023]
Abstract
Cancers that arise from BRCA1 germline mutations are deficient for homologous recombination (HR) DNA repair and are sensitive to DNA-damaging agents such as platinum and PARP inhibitors. In vertebrate organisms, knockout of critical HR genes including BRCA1 and BRCA2 is lethal because HR is required for genome replication. Thus, cancers must develop strategies to cope with loss of HR activity. Furthermore, as established tumors respond to chemotherapy selection pressure, additional genetic adaptations transition cancers to an HR-proficient state. In this review, we discuss biological mechanisms that influence the ability of BRCA1-mutant cancers to perform HR. Furthermore, we consider how the HR status fluctuates throughout the cancer life course, from tumor initiation to the development of therapy refractory disease.
Collapse
Affiliation(s)
- John J Krais
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Neil Johnson
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania.
| |
Collapse
|
27
|
Otsuka K, Yoshino Y, Qi H, Chiba N. The Function of BARD1 in Centrosome Regulation in Cooperation with BRCA1/OLA1/RACK1. Genes (Basel) 2020; 11:genes11080842. [PMID: 32722046 PMCID: PMC7464954 DOI: 10.3390/genes11080842] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 12/17/2022] Open
Abstract
Breast cancer gene 1 (BRCA1)-associated RING domain protein 1 (BARD1) forms a heterodimer with BRCA1, a tumor suppressor associated with hereditary breast and ovarian cancer. BRCA1/BARD1 functions in multiple cellular processes including DNA repair and centrosome regulation. Centrosomes are the major microtubule-organizing centers in animal cells and are critical for the formation of a bipolar mitotic spindle. BRCA1 and BARD1 localize to the centrosome during the cell cycle, and the BRCA1/BARD1 dimer ubiquitinates centrosomal proteins to regulate centrosome function. We identified Obg-like ATPase 1 (OLA1) and receptor for activated C kinase (RACK1) as BRCA1/BARD1-interating proteins that bind to BARD1 and BRCA1 and localize the centrosomes during the cell cycle. Cancer-derived variants of BRCA1, BARD1, OLA1, and RACK1 failed to interact, and aberrant expression of these proteins caused centrosome amplification due to centriole overduplication only in mammary tissue-derived cells. In S-G2 phase, the number of centrioles was higher in mammary tissue-derived cells than in cells from other tissues, suggesting their involvement in tissue-specific carcinogenesis by BRCA1 and BARD1 germline mutations. We described the function of BARD1 in centrosome regulation in cooperation with BRCA1/OLA1/RACK1, as well as the effect of their dysfunction on carcinogenesis.
Collapse
Affiliation(s)
- Kei Otsuka
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan; (K.O.); (Y.Y.); (H.Q.)
- Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Yuki Yoshino
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan; (K.O.); (Y.Y.); (H.Q.)
- Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
- Department of Cancer Biology, Tohoku University Graduate School of Medicine, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Huicheng Qi
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan; (K.O.); (Y.Y.); (H.Q.)
- Department of Cancer Biology, Tohoku University Graduate School of Medicine, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
| | - Natsuko Chiba
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan; (K.O.); (Y.Y.); (H.Q.)
- Laboratory of Cancer Biology, Graduate School of Life Sciences, Tohoku University, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
- Department of Cancer Biology, Tohoku University Graduate School of Medicine, 4-1 Seiryomachi Aoba-ku, Sendai 980-8575, Japan
- Correspondence:
| |
Collapse
|
28
|
Baker LA, Holliday H, Roden D, Krisp C, Wu SZ, Junankar S, Serandour AA, Mohammed H, Nair R, Sankaranarayanan G, Law AMK, McFarland A, Simpson PT, Lakhani S, Dodson E, Selinger C, Anderson L, Samimi G, Hacker NF, Lim E, Ormandy CJ, Naylor MJ, Simpson K, Nikolic I, O'Toole S, Kaplan W, Cowley MJ, Carroll JS, Molloy M, Swarbrick A. Proteogenomic analysis of Inhibitor of Differentiation 4 (ID4) in basal-like breast cancer. Breast Cancer Res 2020; 22:63. [PMID: 32527287 PMCID: PMC7291584 DOI: 10.1186/s13058-020-01306-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 06/01/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Basal-like breast cancer (BLBC) is a poorly characterised, heterogeneous disease. Patients are diagnosed with aggressive, high-grade tumours and often relapse with chemotherapy resistance. Detailed understanding of the molecular underpinnings of this disease is essential to the development of personalised therapeutic strategies. Inhibitor of differentiation 4 (ID4) is a helix-loop-helix transcriptional regulator required for mammary gland development. ID4 is overexpressed in a subset of BLBC patients, associating with a stem-like poor prognosis phenotype, and is necessary for the growth of cell line models of BLBC through unknown mechanisms. METHODS Here, we have defined unique molecular insights into the function of ID4 in BLBC and the related disease high-grade serous ovarian cancer (HGSOC), by combining RIME proteomic analysis, ChIP-seq mapping of genomic binding sites and RNA-seq. RESULTS These studies reveal novel interactions with DNA damage response proteins, in particular, mediator of DNA damage checkpoint protein 1 (MDC1). Through MDC1, ID4 interacts with other DNA repair proteins (γH2AX and BRCA1) at fragile chromatin sites. ID4 does not affect transcription at these sites, instead binding to chromatin following DNA damage. Analysis of clinical samples demonstrates that ID4 is amplified and overexpressed at a higher frequency in BRCA1-mutant BLBC compared with sporadic BLBC, providing genetic evidence for an interaction between ID4 and DNA damage repair deficiency. CONCLUSIONS These data link the interactions of ID4 with MDC1 to DNA damage repair in the aetiology of BLBC and HGSOC.
Collapse
Affiliation(s)
- Laura A Baker
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Holly Holliday
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Daniel Roden
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Christoph Krisp
- Australian Proteome Analysis Facility (APAF), Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, Australia
- Mass Spectrometric Proteome Analysis, Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Sunny Z Wu
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Simon Junankar
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Aurelien A Serandour
- Cancer Research UK, The University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, UK
| | - Hisham Mohammed
- Cancer Research UK, The University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, UK
| | - Radhika Nair
- Rajiv Gandhi Centre for Biotechnology, Thycaud Post, Poojappura, Thiruvananthapuram, Kerala, 695014, India
| | - Geetha Sankaranarayanan
- Cancer Research UK, The University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, UK
| | - Andrew M K Law
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Andrea McFarland
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
| | - Peter T Simpson
- Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Sunil Lakhani
- Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
- Pathology Queensland, The Royal Brisbane and Women's Hospital, Herston, , Brisbane, QLD, Australia
| | - Eoin Dodson
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Christina Selinger
- Department of Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia
| | - Lyndal Anderson
- Department of Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia
- Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia
| | - Goli Samimi
- National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, Bethesda, MD, 20892, USA
| | - Neville F Hacker
- School of Women's and Children's Health, University of New South Wales, and Gynaecological Cancer Centre, Royal Hospital for Women, Sydney, NSW, Australia
| | - Elgene Lim
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Christopher J Ormandy
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Matthew J Naylor
- School of Medical Sciences and Bosch Institute, Sydney Medical School, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Kaylene Simpson
- Victorian Centre for Functional Genomics, Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, 3052, Australia
| | - Iva Nikolic
- Victorian Centre for Functional Genomics, Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
| | - Sandra O'Toole
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
- Department of Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia
- Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia
| | - Warren Kaplan
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
| | - Mark J Cowley
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Jason S Carroll
- Cancer Research UK, The University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, UK
| | - Mark Molloy
- Australian Proteome Analysis Facility (APAF), Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, Australia
| | - Alexander Swarbrick
- The Kinghorn Cancer Centre and Cancer Research Division, Garvan Institute of Medical Research, Darlinghurst, NSW, 2010, Australia.
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2052, Australia.
| |
Collapse
|
29
|
Santana dos Santos E, Lallemand F, Petitalot A, Caputo SM, Rouleau E. HRness in Breast and Ovarian Cancers. Int J Mol Sci 2020; 21:E3850. [PMID: 32481735 PMCID: PMC7312125 DOI: 10.3390/ijms21113850] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/25/2020] [Accepted: 04/28/2020] [Indexed: 02/06/2023] Open
Abstract
Ovarian and breast cancers are currently defined by the main pathways involved in the tumorigenesis. The majority are carcinomas, originating from epithelial cells that are in constant division and subjected to cyclical variations of the estrogen stimulus during the female hormonal cycle, therefore being vulnerable to DNA damage. A portion of breast and ovarian carcinomas arises in the context of DNA repair defects, in which genetic instability is the backdrop for cancer initiation and progression. For these tumors, DNA repair deficiency is now increasingly recognized as a target for therapeutics. In hereditary breast/ovarian cancers (HBOC), tumors with BRCA1/2 mutations present an impairment of DNA repair by homologous recombination (HR). For many years, BRCA1/2 mutations were only screened on germline DNA, but now they are also searched at the tumor level to personalize treatment. The reason of the inactivation of this pathway remains uncertain for most cases, even in the presence of a HR-deficient signature. Evidence indicates that identifying the mechanism of HR inactivation should improve both genetic counseling and therapeutic response, since they can be useful as new biomarkers of response.
Collapse
Affiliation(s)
- Elizabeth Santana dos Santos
- Department of Medical Biology and Pathology, Gustave Roussy, Cancer Genetics Laboratory, Gustave Roussy, 94800 Villejuif, France;
- Department of Clinical Oncology, A.C. Camargo Cancer Center, São Paulo 01509-010, Brazil
| | - François Lallemand
- Department of Genetics, Institut Curie, 75005 Paris, France; (F.L.); (A.P.); (S.M.C.)
- PSL Research University, 75005 Paris, France
| | - Ambre Petitalot
- Department of Genetics, Institut Curie, 75005 Paris, France; (F.L.); (A.P.); (S.M.C.)
- PSL Research University, 75005 Paris, France
| | - Sandrine M. Caputo
- Department of Genetics, Institut Curie, 75005 Paris, France; (F.L.); (A.P.); (S.M.C.)
- PSL Research University, 75005 Paris, France
| | - Etienne Rouleau
- Department of Medical Biology and Pathology, Gustave Roussy, Cancer Genetics Laboratory, Gustave Roussy, 94800 Villejuif, France;
| |
Collapse
|
30
|
Sokolenko AP, Bizin IV, Preobrazhenskaya EV, Gorodnova TV, Ivantsov AO, Iyevleva AG, Savonevich EL, Kotiv KB, Kuligina ES, Imyanitov EN. Molecular profiles of BRCA1-associated ovarian cancer treated by platinum-based therapy: Analysis of primary, residual and relapsed tumors. Int J Cancer 2019; 146:1879-1888. [PMID: 31693165 DOI: 10.1002/ijc.32776] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 10/14/2019] [Accepted: 10/30/2019] [Indexed: 12/12/2022]
Abstract
Our study aimed to analyze the evolution of molecular portraits of BRCA1-driven ovarian cancer (OC) during treatment. BRCA1 loss-of-heterozygosity status (LOH) and exome profiles were investigated in serial OC samples from 13 patients, which included primary tumors (n = 11) obtained before neoadjuvant therapy (NACT) or at primary debulking surgery, residual post-NACT cancer tissues (n = 13) and tumor relapses (16 samples from 13 patients). Loss of the wild-type BRCA1 allele was detected in 11/11 (100%) primary tumors, 6/13 (46%) residual post-NACT OC samples and 15/16 (94%) OC relapses. Full tumor triplets were available for four patients undergoing NACT; whereas primary carcinomas from these patients demonstrated BRCA1 LOH, the retention of the wild-type allele was detected in all four post-NACT residual tumors. These four women provided to the study 5 recurrent OC samples; 4 out of 5 tumor relapses had BRCA1 LOH thus resembling BRCA1 status observed in primary but not residual OC tissues. TP53 mutation was detected in 12 out of 13 patients and was retained across all serial samples. OC relapses tended to acquire additional intragenic mutations in genes involved in cell migration, adhesion and cell junction assembly. BRCA1-driven OCs demonstrate the plasticity of BRCA1 status during the treatment course. NACT results in rapid selection of pre-existing BRCA1-proficient cells. However, BRCA1 proficiency appears to be disadvantageous in the absence of platinum exposure, as tumor relapses usually re-acquire BRCA1 LOH during therapy holidays.
Collapse
Affiliation(s)
- Anna P Sokolenko
- Department of Tumour Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, Russia.,Department of Medical Genetics, St.-Petersburg Pediatric Medical University, St.-Petersburg, Russia
| | - Ilya V Bizin
- Department of Tumour Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, Russia
| | - Elena V Preobrazhenskaya
- Department of Tumour Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, Russia.,Department of Medical Genetics, St.-Petersburg Pediatric Medical University, St.-Petersburg, Russia
| | - Tatiana V Gorodnova
- Department of Tumour Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, Russia
| | - Alexander O Ivantsov
- Department of Tumour Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, Russia
| | - Aglaya G Iyevleva
- Department of Tumour Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, Russia.,Department of Medical Genetics, St.-Petersburg Pediatric Medical University, St.-Petersburg, Russia
| | - Elena L Savonevich
- Department of Obstetrics and Gynecology, Grodno State Medical University, Grodno, Belarus
| | - Khristina B Kotiv
- Department of Tumour Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, Russia
| | - Ekaterina Sh Kuligina
- Department of Tumour Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, Russia
| | - Evgeny N Imyanitov
- Department of Tumour Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, Russia.,Department of Medical Genetics, St.-Petersburg Pediatric Medical University, St.-Petersburg, Russia
| |
Collapse
|
31
|
Lippman SM, Abate-Shen C, Colbert Maresso KL, Colditz GA, Dannenberg AJ, Davidson NE, Disis ML, DuBois RN, Szabo E, Giuliano AR, Hait WN, Lee JJ, Kensler TW, Kramer BS, Limburg P, Maitra A, Martinez ME, Rebbeck TR, Schmitz KH, Vilar E, Hawk ET. AACR White Paper: Shaping the Future of Cancer Prevention - A Roadmap for Advancing Science and Public Health. Cancer Prev Res (Phila) 2019; 11:735-778. [PMID: 30530635 DOI: 10.1158/1940-6207.capr-18-0421] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 11/02/2018] [Indexed: 12/09/2022]
Abstract
The recent pace, extent, and impact of paradigm-changing cancer prevention science has been remarkable. The American Association for Cancer Research (AACR) convened a 3-day summit, aligned with five research priorities: (i) Precancer Atlas (PCA). (ii) Cancer interception. (iii) Obesity-cancer linkage, a global epidemic of chronic low-grade inflammation. (iv) Implementation science. (v) Cancer disparities. Aligned with these priorities, AACR co-led the Lancet Commission to formally endorse and accelerate the NCI Cancer Moonshot program, facilitating new global collaborative efforts in cancer control. The expanding scope of creative impact is perhaps most startling-from NCI-funded built environments to AACR Team Science Awarded studies of Asian cancer genomes informing global primary prevention policies; cell-free epigenetic marks identifying incipient neoplastic site; practice-changing genomic subclasses in myeloproliferative neoplasia (including germline variant tightly linked to JAK2 V617F haplotype); universal germline genetic testing for pancreatic cancer; and repurposing drugs targeting immune- and stem-cell signals (e.g., IL-1β, PD-1, RANK-L) to cancer interception. Microbiota-driven IL-17 can induce stemness and transformation in pancreatic precursors (identifying another repurposing opportunity). Notable progress also includes hosting an obesity special conference (connecting epidemiologic and molecular perspectives to inform cancer research and prevention strategies), co-leading concerted national implementation efforts in HPV vaccination, and charting the future elimination of cancer disparities by integrating new science tools, discoveries and perspectives into community-engaged research, including targeted counter attacks on e-cigarette ad exploitation of children, Hispanics and Blacks. Following this summit, two unprecedented funding initiatives were catalyzed to drive cancer prevention research: the NCI Cancer Moonshot (e.g., PCA and disparities); and the AACR-Stand Up To Cancer bold "Cancer Interception" initiative.
Collapse
Affiliation(s)
| | - Cory Abate-Shen
- Departments of Urology, Medicine, Systems Biology, and Pathology & Cell Biology, Institute of Cancer Genetics, Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY
| | - Karen L Colbert Maresso
- Division of Cancer Prevention & Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Graham A Colditz
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
| | | | - Nancy E Davidson
- Fred Hutchinson Cancer Center and University of Washington, Seattle, Washington
| | - Mary L Disis
- UW Medicine Cancer Vaccine Institute, University of Washington, Seattle, Washington
| | - Raymond N DuBois
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, South Carolina
| | - Eva Szabo
- Division of Cancer Prevention, National Cancer Institute, NIH, Bethesda, Maryland
| | - Anna R Giuliano
- Center for Infection Research in Cancer, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida
| | - William N Hait
- Janssen Research and Development LLC., Raritan, New Jersey
| | - J Jack Lee
- Department of Biostatistics, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Thomas W Kensler
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | | | - Paul Limburg
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Anirban Maitra
- Sheikh Ahmed Pancreatic Cancer Research Center, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Maria Elena Martinez
- Department of Family Medicine and Public Health, UC San Diego, LaJolla, California
| | - Timothy R Rebbeck
- Cancer Epidemiology & Cancer Risk and Disparity, Dana-Farber Cancer Institute, Boston, MA
| | | | - Eduardo Vilar
- Departments of Clinical Cancer Prevention and GI Medical Oncology, UT MD Anderson Cancer Center, Houston, TX
| | - Ernest T Hawk
- Division of Cancer Prevention & Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, TX.
| |
Collapse
|
32
|
Cypris O, Božić T, Wagner W. Chicken or Egg: Is Clonal Hematopoiesis Primarily Caused by Genetic or Epigenetic Aberrations? Front Genet 2019; 10:785. [PMID: 31552094 PMCID: PMC6746886 DOI: 10.3389/fgene.2019.00785] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 07/24/2019] [Indexed: 12/31/2022] Open
Abstract
Hematopoietic malignancies, including multiple myeloma, are associated with characteristic mutations and genetic instabilities that drive malignant transformation. On the other hand, tumor formation is also associated with drastic epigenetic aberrations, which can impact the genetic sequence. Therefore, the question arises if malignant transformation is primarily caused by genetic or epigenetic events. The tight connection of these processes becomes obvious by the fact that in several malignancies, as well as in age-related clonal hematopoiesis, mutations are particularly observed in epigenetic writers such as DNMT3A and TET2. On the other hand, specific epigenetic aberrations, so-called “epimutations,” can mimic genomic mutations. In contrast to the genetic sequence, which remains relatively stable throughout life, the epigenome notoriously undergoes drastic changes in normal hematopoietic development and aging. It is conceivable that such epigenetic reorganization, e.g., in 3D chromatin conformation, paves the way for secondary chromosomal instabilities, which then result in tumor-specific genomic changes that further trigger disease progression. This scenario might explain the occurrence of tumor-specific mutations particularly in the elderly. Taken together, the causality dilemma is difficult to solve because genetic and epigenetic aberrations are interlinked during disease development. A better understanding of how the chromatin structure or 3D nuclear organization can evoke specific mutations might provide new perspectives for prevention, early diagnostics, and targeted therapy.
Collapse
Affiliation(s)
- Olivia Cypris
- Helmholtz-Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, RWTH Aachen University Medical School, Aachen, Germany.,Institute for Biomedical Engineering - Cell Biology, University Hospital of RWTH Aachen, Aachen, Germany
| | - Tanja Božić
- Helmholtz-Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, RWTH Aachen University Medical School, Aachen, Germany.,Institute for Biomedical Engineering - Cell Biology, University Hospital of RWTH Aachen, Aachen, Germany
| | - Wolfgang Wagner
- Helmholtz-Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, RWTH Aachen University Medical School, Aachen, Germany.,Institute for Biomedical Engineering - Cell Biology, University Hospital of RWTH Aachen, Aachen, Germany
| |
Collapse
|
33
|
Lindström LS, Yau C, Czene K, Thompson CK, Hoadley KA, Van't Veer LJ, Balassanian R, Bishop JW, Carpenter PM, Chen YY, Datnow B, Hasteh F, Krings G, Lin F, Zhang Y, Nordenskjöld B, Stål O, Benz CC, Fornander T, Borowsky AD, Esserman LJ. Intratumor Heterogeneity of the Estrogen Receptor and the Long-term Risk of Fatal Breast Cancer. J Natl Cancer Inst 2019; 110:726-733. [PMID: 29361175 PMCID: PMC6037086 DOI: 10.1093/jnci/djx270] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 11/22/2017] [Indexed: 01/11/2023] Open
Abstract
Background Breast cancer patients with estrogen receptor (ER)–positive disease have a continuous long-term risk for fatal breast cancer, but the biological factors influencing this risk are unknown. We aimed to determine whether high intratumor heterogeneity of ER predicts an increased long-term risk (25 years) of fatal breast cancer. Methods The STO-3 trial enrolled 1780 postmenopausal lymph node–negative breast cancer patients randomly assigned to receive adjuvant tamoxifen vs not. The fraction of cancer cells for each ER intensity level was scored by breast cancer pathologists, and intratumor heterogeneity of ER was calculated using Rao’s quadratic entropy and categorized into high and low heterogeneity using a predefined cutoff at the second tertile (67%). Long-term breast cancer-specific survival analyses by intra-tumor heterogeneity of ER were performed using Kaplan-Meier and multivariable Cox proportional hazard modeling adjusting for patient and tumor characteristics. Results A statistically significant difference in long-term survival by high vs low intratumor heterogeneity of ER was seen for all ER-positive patients (P < .001) and for patients with luminal A subtype tumors (P = .01). In multivariable analyses, patients with high intratumor heterogeneity of ER had a twofold increased long-term risk as compared with patients with low intratumor heterogeneity (ER-positive: hazard ratio [HR] = 1.98, 95% confidence interval [CI] = 1.31 to 3.00; luminal A subtype tumors: HR = 2.43, 95% CI = 1.18 to 4.99). Conclusions Patients with high intratumor heterogeneity of ER had an increased long-term risk of fatal breast cancer. Interestingly, a similar long-term risk increase was seen in patients with luminal A subtype tumors. Our findings suggest that intratumor heterogeneity of ER is an independent long-term prognosticator with potential to change clinical management, especially for patients with luminal A tumors.
Collapse
Affiliation(s)
- Linda S Lindström
- Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
| | - Christina Yau
- Department of Surgery, University of California San Francisco, San Francisco, CA.,Buck Institute for Research on Aging, Novato, CA
| | - Kamila Czene
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Carlie K Thompson
- Department of Surgery, University of California San Francisco, San Francisco, CA
| | - Katherine A Hoadley
- Department of Genetics, Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Laura J Van't Veer
- Department of Pathology, University of California San Francisco, San Francisco, CA.,Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA
| | - Ron Balassanian
- Department of Pathology, University of California San Francisco, San Francisco, CA
| | - John W Bishop
- Center for Comparative Medicine, Department of Pathology and Laboratory Medicine, University of California Davis, Davis, CA
| | - Philip M Carpenter
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA.,Department of Pathology and Laboratory Medicine, University of California Irvine, Irvine, CA
| | - Yunn-Yi Chen
- Department of Pathology, University of California San Francisco, San Francisco, CA
| | - Brian Datnow
- Department of Pathology and Laboratory Medicine, University of California San Diego, La Jolla, CA
| | - Farnaz Hasteh
- Department of Pathology and Laboratory Medicine, University of California San Diego, La Jolla, CA
| | - Gregor Krings
- Department of Pathology, University of California San Francisco, San Francisco, CA
| | - Fritz Lin
- Department of Pathology and Laboratory Medicine, University of California Irvine, Irvine, CA
| | - Yanhong Zhang
- Center for Comparative Medicine, Department of Pathology and Laboratory Medicine, University of California Davis, Davis, CA
| | - Bo Nordenskjöld
- Department of Clinical and Experimental Medicine and Department of Oncology, Linköping University, Linköping, Sweden
| | - Olle Stål
- Department of Clinical and Experimental Medicine and Department of Oncology, Linköping University, Linköping, Sweden
| | - Christopher C Benz
- Department of Surgery, University of California San Francisco, San Francisco, CA.,Buck Institute for Research on Aging, Novato, CA
| | - Tommy Fornander
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Alexander D Borowsky
- Center for Comparative Medicine, Department of Pathology and Laboratory Medicine, University of California Davis, Davis, CA
| | - Laura J Esserman
- Department of Surgery, University of California San Francisco, San Francisco, CA
| | | |
Collapse
|
34
|
Abubakar M, Guo C, Koka H, Sung H, Shao N, Guida J, Deng J, Li M, Hu N, Zhou B, Lu N, Yang XR. Clinicopathological and epidemiological significance of breast cancer subtype reclassification based on p53 immunohistochemical expression. NPJ Breast Cancer 2019; 5:20. [PMID: 31372496 PMCID: PMC6658470 DOI: 10.1038/s41523-019-0117-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 07/02/2019] [Indexed: 01/10/2023] Open
Abstract
TP53 mutations are common in breast cancer and are typically associated with more aggressive tumor characteristics, but little is known about the clinicopathological and epidemiological relevance of p53 protein expression, a TP53 mutation surrogate, in breast cancer subtypes. In this study of 7226 Chinese women with invasive breast cancer, we defined breast cancer subtypes using immunohistochemical (IHC) measures of hormone receptors and HER2 in conjunction with histologic grade. p53 expression status was then used to further stratify subtypes into p53-positive and p53-negative. Odds ratios (ORs) and 95% confidence intervals (CIs) in case-only logistic regression analyses were used to examine heterogeneity across different subtypes. The frequency of p53 protein expression varied by breast cancer subtype, being lowest in the luminal A-like and highest in the triple-negative and HER2-enriched subtypes (P-value < 0.01). In luminal A-like and B-like/HER2-negative subtypes, p53 positivity was associated with early-onset tumors, high grade, high proliferative index, and basal marker (CK5/6 and EGFR) expression. Further, compared with luminal A-like/p53-negative patients, A-like/p53-positive patients were more likely to be parous [adjusted OR parous vs. nulliparous = 2.67 (1.60, 4.51); P-value < 0.01] and to have breastfed [adjusted OR ever vs. never = 1.38 (1.03, 1.85); P-value = 0.03]. p53 positivity was not associated with examined clinical and risk factors in other tumor subtypes. Overall, these findings suggest that p53 expression, which is readily available in many settings, can be used to identify phenotypes of luminal A-like breast cancer with distinct clinical and epidemiological implications.
Collapse
Affiliation(s)
- Mustapha Abubakar
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892 USA
| | - Changyuan Guo
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021 Beijing, China
| | - Hela Koka
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892 USA
| | - Hyuna Sung
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892 USA
- Surveillance and Health Services Research, American Cancer Society, Atlanta, GA 30303 USA
| | - Nan Shao
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892 USA
- Department of Breast and Thyroid Surgery, The First Affiliated Hospital of Sun Yat-sen University, 510275 Guangzhou, China
| | - Jennifer Guida
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892 USA
- Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892 USA
| | - Joseph Deng
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892 USA
| | - Mengjie Li
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892 USA
- Vanderbilt University, Nashville, TN 37235 USA
| | - Nan Hu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892 USA
| | - Bin Zhou
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021 Beijing, China
| | - Ning Lu
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021 Beijing, China
| | - Xiaohong R. Yang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD 20892 USA
| |
Collapse
|
35
|
Efficacy of Neoadjuvant Therapy With Cisplatin Plus Mitomycin C in BRCA1-Mutated Ovarian Cancer. Int J Gynecol Cancer 2019; 28:1498-1506. [PMID: 30247247 DOI: 10.1097/igc.0000000000001352] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVES Cisplatin and mitomycin C exert high activity towards BRCA1-deficient cells. This study aimed to evaluate the efficacy of a combination of these drugs in hereditary BRCA1-associated ovarian cancer (OC). METHODS Twelve OC patients, who could not be treated by primary debulking surgery owing to extensive tumor spread, were given neoadjuvant cisplatin (100 mg/m) and mitomycin C (10 mg/m) every 4 weeks for 3 (n = 9), 2 (n = 2), or 4 (n = 1) cycles. RESULTS The decrease of tumor burden and complete surgical cytoreduction were achieved in all patients. Pathologic complete response, defined as the absence of tumor cells in surgically removed tissues, was observed in 2 (17%) of 12 cases. Retrospective analysis of 62 OC in BRCA1 mutation carriers subjected to conventional neoadjuvant chemotherapy schemes revealed 36 objective tumor responses (58%) and 37 instances (60%) of complete cytoreductive surgery; however, none of these patients demonstrated pathologic complete response. CONCLUSIONS The combination of cisplatin plus mitomycin C showed promising results in BRCA1-driven OC and therefore deserves further clinical evaluation.
Collapse
|
36
|
Abstract
MOTIVATION How predictable is the evolution of cancer? This fundamental question is of immense relevance for the diagnosis, prognosis and treatment of cancer. Evolutionary biologists have approached the question of predictability based on the underlying fitness landscape. However, empirical fitness landscapes of tumor cells are impossible to determine in vivo. Thus, in order to quantify the predictability of cancer evolution, alternative approaches are required that circumvent the need for fitness landscapes. RESULTS We developed a computational method based on conjunctive Bayesian networks (CBNs) to quantify the predictability of cancer evolution directly from mutational data, without the need for measuring or estimating fitness. Using simulated data derived from >200 different fitness landscapes, we show that our CBN-based notion of evolutionary predictability strongly correlates with the classical notion of predictability based on fitness landscapes under the strong selection weak mutation assumption. The statistical framework enables robust and scalable quantification of evolutionary predictability. We applied our approach to driver mutation data from the TCGA and the MSK-IMPACT clinical cohorts to systematically compare the predictability of 15 different cancer types. We found that cancer evolution is remarkably predictable as only a small fraction of evolutionary trajectories are feasible during cancer progression. AVAILABILITY AND IMPLEMENTATION https://github.com/cbg-ethz/predictability\_of\_cancer\_evolution. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
Collapse
Affiliation(s)
- Sayed-Rzgar Hosseini
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Ramon Diaz-Uriarte
- Department of Biochemistry, Universidad Autónoma de Madrid, Instituto de Investigaciones Biomédicas “Alberto Sols (UAM-CSIC)”, Madrid, Spain
| | - Florian Markowetz
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Niko Beerenwinkel
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| |
Collapse
|
37
|
Song Z, Tu X, Zhou Q, Huang J, Chen Y, Liu J, Lee S, Kim W, Nowsheen S, Luo K, Yuan J, Lou Z. A novel UCHL 3 inhibitor, perifosine, enhances PARP inhibitor cytotoxicity through inhibition of homologous recombination-mediated DNA double strand break repair. Cell Death Dis 2019; 10:398. [PMID: 31113933 PMCID: PMC6529448 DOI: 10.1038/s41419-019-1628-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/04/2019] [Accepted: 04/30/2019] [Indexed: 02/07/2023]
Abstract
Triple-negative breast cancer (TNBC) treatment remains a great challenge for clinical practice and novel therapeutic strategies are urgently needed. UCHL3 is a deubiquitinase that is overexpressed in TNBC and correlates with poor prognosis. UCHL3 deubiquitinates RAD51 thereby promoting the recruitment of RAD51 to DNA damage sites and augmenting DNA repair. Therefore, UCHL3 overexpression can render cancer cells resistant to DNA damage inducing chemo and radiotherapy, and targeting UCHL3 can sensitize TNBC to radiation and chemotherapy. However, small molecule inhibitors of UCHL3 are yet to be identified. Here we report that perifosine, a previously reported Akt inhibitor, can inhibit UCHL3 in vitro and in vivo. We found low dose (50 nM) perifosine inhibited UCHL3 deubiquitination activity without affecting Akt activity. Furthermore, perifosine enhanced Olaparib-induced growth inhibition in TNBC cells. Mechanistically, perifosine induced RAD51 ubiquitination and blocked the RAD51-BRCA2 interaction, which in turn decreased ionizing radiation-induced foci (IRIF) of Rad51 and, thereby, homologous recombination (HR)-mediated DNA double strand break repair. In addition, combination of perifosine and Olaparib showed synergistic antitumor activity in vivo in TNBC xenograft model. Thus, our present study provides a novel therapeutic approach to optimize PARP inhibitor treatment efficiency.
Collapse
Affiliation(s)
- Zhiwang Song
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA
| | - Xinyi Tu
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA
| | - Qin Zhou
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA
| | - Jinzhou Huang
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA
| | - Yuping Chen
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA
| | - Jiaqi Liu
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA
| | - SeungBaek Lee
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA
| | - Wootae Kim
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA
| | - Somaira Nowsheen
- Medical Scientist Training Program, Mayo Clinic Alix School of Medicine, Mayo Clinic Graduate School of Biomedical Sciences, Rochester, MN, 55905, USA
| | - Kuntian Luo
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA.
- Department of Molecular Pharmacology, Mayo Clinic, Rochester, MN, USA.
| | - Jian Yuan
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA.
- Department of Molecular Pharmacology, Mayo Clinic, Rochester, MN, USA.
| | - Zhenkun Lou
- Division of Oncology Research, Mayo Clinic, Rochester, MN, USA.
- Department of Molecular Pharmacology, Mayo Clinic, Rochester, MN, USA.
| |
Collapse
|
38
|
Macedo GS, Alemar B, Ashton-Prolla P. Reviewing the characteristics of BRCA and PALB2-related cancers in the precision medicine era. Genet Mol Biol 2019; 42:215-231. [PMID: 31067289 PMCID: PMC6687356 DOI: 10.1590/1678-4685-gmb-2018-0104] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 10/24/2018] [Indexed: 12/24/2022] Open
Abstract
Germline mutations in BRCA1 and BRCA2 (BRCA) genes confer high risk of developing cancer, especially breast and ovarian tumors. Since the cloning of these tumor suppressor genes over two decades ago, a significant amount of research has been done. Most recently, monoallelic loss-of-function mutations in PALB2 have also been shown to increase the risk of breast cancer. The identification of BRCA1, BRCA2 and PALB2 as proteins involved in DNA double-strand break repair by homologous recombination and of the impact of complete loss of BRCA1 or BRCA2 within tumors have allowed the development of novel therapeutic approaches for patients with germline or somatic mutations in said genes. Despite the advances, especially in the clinical use of PARP inhibitors, key gaps remain. Now, new roles for BRCA1 and BRCA2 are emerging and old concepts, such as the classical two-hit hypothesis for tumor suppression, have been questioned, at least for some BRCA functions. Here aspects regarding cancer predisposition, cellular functions, histological and genomic findings in BRCA and PALB2-related tumors will be presented, in addition to an up-to-date review of the evolution and challenges in the development and clinical use of PARP inhibitors.
Collapse
Affiliation(s)
- Gabriel S Macedo
- Post-Graduate Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.,Precision Medicine Program, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Barbara Alemar
- Post-Graduate Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Patricia Ashton-Prolla
- Post-Graduate Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.,Precision Medicine Program, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| |
Collapse
|
39
|
Evaluation of site-specific homologous recombination activity of BRCA1 by direct quantitation of gene editing efficiency. Sci Rep 2019; 9:1644. [PMID: 30733539 PMCID: PMC6367331 DOI: 10.1038/s41598-018-38311-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 12/18/2018] [Indexed: 02/03/2023] Open
Abstract
Homologous recombination (HR) contributes to the repair of DNA double-strand breaks (DSBs) and inter-strand crosslinks. The HR activity in cancer cells can be used to predict their sensitivity to DNA-damaging agents that cause these damages. To evaluate HR activity, we developed a system called Assay for Site-specific HR Activity (ASHRA), in which cells are transiently transfected with an expression vector for CRISPR/Cas9 and a HR donor sequence containing a marker gene. DSBs are created by Cas9 and then repaired by HR using donor vector sequences homologous to the target gene. The level of genomic integration of the marker gene is quantified by Western blotting, flowcytometry, or quantitative PCR (qPCR). ASHRA detected HR deficiency caused by BRCA1, BARD1, or RAD51 knockdown or introduction of BRCA1 variants. The influence of BRCA1 variants on HR, as determined by qPCR, was consistent with the chemosensitivities of the transfected cells. The qPCR format of ASHRA could measure HR activity in both transcribed and un-transcribed regions. Knockdown of BRCA1 nor BARD1 did not affect HR activity in a transcriptionally inactive site. ASHRA can evaluate HR activity and will be useful for predicting sensitivity to chemotherapy, screening drugs that affect HR, and investigating the mechanisms of HR.
Collapse
|
40
|
Wang R, Li J, Yin C, Zhao D, Yin L. Identification of differentially expressed genes and typical fusion genes associated with three subtypes of breast cancer. Breast Cancer 2018; 26:305-316. [PMID: 30446971 DOI: 10.1007/s12282-018-0924-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 10/15/2018] [Indexed: 11/25/2022]
Abstract
BACKGROUND This study aimed to identify the differentially expressed genes (DEGs) and the typical fusion genes in different types of breast cancers using RNA-seq. METHODS GSE52643 was downloaded from Gene Expression Omnibus, which included 1 normal sample (MCF10A) and 7 breast cancer samples (BT-474, BT-20, MCF7, MDA-MB-231, MDA-MB-468, T47D, and ZR-75-1). The transcript abundance and the DEGs screening were performed by Cufflinks. The functional and pathway enrichment was analyzed by Gostats. SnowShoes-FTD was applied to identify the fusion genes. RESULTS We screened 430, 445, 397, 417, 369, 557, and 375 DEGs in BT-474, BT-20, MCF7, DA-MB-231, MDA-MB-468, T47D, and ZR-75-1, respectively, compared with MCF10A. DEGs in each comparison group (such as CD40 and CDH1) were significantly enriched in the functions of cell adhesion and extracellular matrix organization and pathways of CAMs and ECM receptor interaction. UCP2 was a common DEG in the 7 comparison groups. SFRP1 and MMP7 were significantly enriched in wnt/-catenin signaling pathway in MDA-MB-231. FAS was significantly enriched in autoimmune thyroid disease pathway in BT-474. Besides, we screened 96 fusion genes, such as ESR1-C6orf97 in ZR-75-1, COBRA1-C9orf167 in BT-20, and VAPB-IKZF3 and ACACA-STAC2 in BT-474. CONCLUSIONS The DEGs such as SFRP1, MMP7, CDH1, FAS, and UCP2 might be the potential biomarkers in breast cancer. Furthermore, some pivotal fusion genes like ESR1-C6orf97 with COBRA1-C9orf167 and VAPB-IKZF3 with ACACA-STAC2 were found in Luminal A and Luminal B breast cancer, respectively.
Collapse
Affiliation(s)
- Rong Wang
- National Research Institute for Health and Family Planning, Beijing, 100081, China
| | - Jinbin Li
- Core Laboratory of Translational Medicine, Chinese PLA General Hospital, No. 28, Fuxing Road, Haidian District, Beijing, 100853, China
| | - Chunyu Yin
- Core Laboratory of Translational Medicine, Chinese PLA General Hospital, No. 28, Fuxing Road, Haidian District, Beijing, 100853, China
| | - Di Zhao
- Dermatological of Department, The 309 Hospital of Chinese PLA, Beijing, 100091, China
| | - Ling Yin
- Core Laboratory of Translational Medicine, Chinese PLA General Hospital, No. 28, Fuxing Road, Haidian District, Beijing, 100853, China.
| |
Collapse
|
41
|
Billing D, Horiguchi M, Wu-Baer F, Taglialatela A, Leuzzi G, Nanez SA, Jiang W, Zha S, Szabolcs M, Lin CS, Ciccia A, Baer R. The BRCT Domains of the BRCA1 and BARD1 Tumor Suppressors Differentially Regulate Homology-Directed Repair and Stalled Fork Protection. Mol Cell 2018; 72:127-139.e8. [PMID: 30244837 DOI: 10.1016/j.molcel.2018.08.016] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 06/23/2018] [Accepted: 08/07/2018] [Indexed: 10/28/2022]
Abstract
The BRCA1 tumor suppressor preserves genome integrity through both homology-directed repair (HDR) and stalled fork protection (SFP). In vivo, BRCA1 exists as a heterodimer with the BARD1 tumor suppressor, and both proteins harbor a phosphate-binding BRCT domain. Here, we compare mice with mutations that ablate BRCT phospho-recognition by Bard1 (Bard1S563F and Bard1K607A) or Brca1 (Brca1S1598F). Brca1S1598F abrogates both HDR and SFP, suggesting that both pathways are likely impaired in most BRCA1 mutant tumors. Although not affecting HDR, the Bard1 mutations ablate poly(ADP-ribose)-dependent recruitment of BRCA1/BARD1 to stalled replication forks, resulting in fork degradation and chromosome instability. Nonetheless, Bard1S563F/S563F and Bard1K607A/K607A mice, unlike Brca1S1598F/S1598F mice, are not tumor prone, indicating that HDR alone is sufficient to suppress tumor formation in the absence of SFP. Nevertheless, because SFP, unlike HDR, is also impaired in heterozygous Brca1/Bard1 mutant cells, SFP and HDR may contribute to distinct stages of tumorigenesis in BRCA1/BARD1 mutation carriers.
Collapse
Affiliation(s)
- David Billing
- Institute for Cancer Genetics, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Pathology & Cell Biology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Michiko Horiguchi
- Institute for Cancer Genetics, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Pathology & Cell Biology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Foon Wu-Baer
- Institute for Cancer Genetics, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Pathology & Cell Biology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Angelo Taglialatela
- Department of Genetics & Development, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Giuseppe Leuzzi
- Department of Genetics & Development, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Silvia Alvarez Nanez
- Department of Genetics & Development, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Wenxia Jiang
- Institute for Cancer Genetics, Columbia University Irving Medical Center, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Shan Zha
- Institute for Cancer Genetics, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Pathology & Cell Biology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Matthias Szabolcs
- Department of Pathology & Cell Biology, Columbia University Irving Medical Center, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Chyuan-Sheng Lin
- Department of Pathology & Cell Biology, Columbia University Irving Medical Center, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Alberto Ciccia
- Department of Genetics & Development, Columbia University Irving Medical Center, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Richard Baer
- Institute for Cancer Genetics, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Pathology & Cell Biology, Columbia University Irving Medical Center, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USA.
| |
Collapse
|
42
|
Wang X, Tan Y, Cao X, Kim JA, Chen T, Hu Y, Wexler M, Wang X. Epigenetic activation of HORMAD1 in basal-like breast cancer: role in Rucaparib sensitivity. Oncotarget 2018; 9:30115-30127. [PMID: 30046392 PMCID: PMC6059019 DOI: 10.18632/oncotarget.25728] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 06/22/2018] [Indexed: 12/27/2022] Open
Abstract
Basal-like breast cancer (BLBC) is an aggressive breast cancer subtype with features similar to the basal cells surrounding the mammary ducts. Treatment of patients with BLBC has been challenging due to the lack of well-defined molecular targets. Due to the clinical and pathological similarities of BLBC with BRCA-deficient breast cancers, the effectiveness of Poly (ADP-ribose) polymerase inhibitors (PARPi) has been tested in early phase clinical trials for patients with advanced BLBC, with limited clinical responses. Recently, it was reported that HORMAD1 overexpression sensitizes BLBC to HR-targeting agents by suppressing homologous recombination. Our independent analysis suggests that HORMAD1 is aberrantly overexpressed in about 80% of BLBC, and its expression in normal tissues is restricted to testis. Our experimental data suggests that HORMAD1 overexpression correlates with focal hypomethylation in BLBC. On the other hand, investigation of the Genomics of Drug Sensitivity in Cancer dataset revealed significantly reduced sensitivity of HORMAD1-overexpressing BLBC cell lines to Rucaparib, a commonly used PARPi. To further assess the role of HORMAD1 in PARPi sensitivity, we generated three HORMAD1-overexpressing xenograft models using the HORMAD1-low BLBC cell lines HCC1954, HCC1806, and BT20; we then subjected these xenograft models to Rucaparib treatment. Ectopic expression of HORMAD1 enhances tumor formations in two of these models, and significantly reduces sensitivity to Rucaparib in the HCC1954 model. Taken together, our data suggest that epigenetic activation of HORMAD1 by hypomethylation in BLBC may endow reduced sensitivity to Rucaparib treatment in some tumor models.
Collapse
Affiliation(s)
- Xian Wang
- UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA
- Department of Pathology, University of Pittsburgh, PA 15232, USA
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ying Tan
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xixi Cao
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jin Ah Kim
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Tianmeng Chen
- UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA
- Department of Pathology, University of Pittsburgh, PA 15232, USA
| | - Yiheng Hu
- UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA
- Department of Pathology, University of Pittsburgh, PA 15232, USA
| | - Matthew Wexler
- UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA
- Department of Pathology, University of Pittsburgh, PA 15232, USA
| | - Xiaosong Wang
- UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA
- Department of Pathology, University of Pittsburgh, PA 15232, USA
- Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX 77030, USA
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| |
Collapse
|
43
|
Yoshino Y, Qi H, Fujita H, Shirota M, Abe S, Komiyama Y, Shindo K, Nakayama M, Matsuzawa A, Kobayashi A, Ogoh H, Watanabe T, Ishioka C, Chiba N. BRCA1-Interacting Protein OLA1 Requires Interaction with BARD1 to Regulate Centrosome Number. Mol Cancer Res 2018; 16:1499-1511. [PMID: 29858377 DOI: 10.1158/1541-7786.mcr-18-0269] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/28/2018] [Accepted: 05/18/2018] [Indexed: 11/16/2022]
Abstract
BRCA1 functions as a tumor suppressor in DNA repair and centrosome regulation. Previously, Obg-like ATPase 1 (OLA1) was shown to interact with BARD1, a heterodimer partner of BRCA1. OLA1 binds to BRCA1, BARD1, and γ-tubulin and functions in centrosome regulation. This study determined that overexpression of wild-type OLA1 (OLA1-WT) caused centrosome amplification due to centriole overduplication in mammary tissue-derived cells. Centrosome amplification induced by overexpression of the cancer-derived OLA1 mutant, which is deficient at regulating centrosome number, occurred in significantly fewer cells than in that induced by overexpression of OLA1-WT. Thus, it was hypothesized that overexpression of OLA1 with normal function efficiently induces centrosome amplification, but not that of OLA1 mutants, which are deficient at regulating centrosome number. We analyzed whether overexpression of OLA1 missense mutants of nine candidate phosphorylation residues, three residues modified with acetylation, and two ATP-binding residues caused centrosome amplification and identified five missense mutants that are deficient in the regulation of centrosome number. Three of them did not bind to BARD1. Two phosphomimetic mutations restored the binding to BARD1 and the efficient centrosome amplification by their overexpression. Knockdown and overexpression of BARD1 also caused centrosome amplification. BARD1 mutant reported in cancer failed to bind to OLA1 and rescue the BARD1 knockdown-induced centrosome amplification and reduced its centrosomal localization. Combined, these data reveal that the OLA1-BARD1 interaction is important for the regulation of centrosome number.Implications: Regulation of centrosome number by BRCA1/BARD1 together with OLA1 is important for the genome integrity to prevent tumor development. Mol Cancer Res; 16(10); 1499-511. ©2018 AACR.
Collapse
Affiliation(s)
- Yuki Yoshino
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Huicheng Qi
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Hiroki Fujita
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Matsuyuki Shirota
- Division of Interdisciplinary Medical Science, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Shun Abe
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Yuhei Komiyama
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Kazuha Shindo
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Masahiro Nakayama
- Department of Molecular Immunology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Ayako Matsuzawa
- Department of Molecular Immunology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Akihiro Kobayashi
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Honami Ogoh
- Department of Biological Science, Graduate School of Humanities and Sciences, Nara Women's University, Nara, Japan
| | - Toshio Watanabe
- Department of Biological Science, Graduate School of Humanities and Sciences, Nara Women's University, Nara, Japan
| | - Chikashi Ishioka
- Department of Clinical Oncology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Natsuko Chiba
- Department of Cancer Biology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan.
| |
Collapse
|
44
|
Watanabe G, Chiba N, Nomizu T, Furuta A, Sato K, Miyashita M, Tada H, Suzuki A, Ohuchi N, Ishida T. Increased centrosome number in BRCA-related breast cancer specimens determined by immunofluorescence analysis. Cancer Sci 2018; 109:2027-2035. [PMID: 29601120 PMCID: PMC5989840 DOI: 10.1111/cas.13595] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Revised: 03/04/2018] [Accepted: 03/21/2018] [Indexed: 01/25/2023] Open
Abstract
BRCA‐related breast carcinoma can be prevented through prophylactic surgery and an intensive follow‐up regimen. However, BRCA genetic tests cannot be routinely performed, and some BRCA mutations could not be defined as deleterious mutations or normal variants. Therefore, an easy functional assay of BRCA will be useful to evaluate BRCA status. As it has been reported that BRCA functions in the regulation of centrosome number, we focused on centrosome number in cancer tissues. Here, 70 breast cancer specimens with known BRCA status were analyzed using immunofluorescence of γ‐tubulin (a marker of centrosome) foci. The number of foci per cell was higher in cases with BRCA mutation compared to wild‐type cases, that is, 1.9 (95% confidence interval [CI], 1.5‐2.3) vs 0.5 (95% CI, 0.2‐0.8) (P < .001). Specifically, foci numbers per cell in BRCA1 and BRCA2 mutation cases were 1.2 (95% CI, 0.6‐1.8) and 2.2 (95% CI, 1.7‐2.6), respectively, both higher than those in wild‐type cases (P = .042 and P < .0001, respectively). The predictive value of γ‐tubulin foci as determined by area under the curve (AUC = 0.86) for BRCA status was superior to BRCAPRO (AUC = 0.69), Myriad Table (AUC = 0.61), and KOHBRA BRCA risk calculator (AUC = 0.65) pretest values. The use of γ‐tubulin foci to predict BRCA status had sensitivity = 83% (19/23), specificity = 89% (42/47), and positive predictive value = 77% (20/26). Thus, γ‐tubulin immunofluorescence, a functional assessment of BRCA, can be used as a new prospective test of BRCA status.
Collapse
Affiliation(s)
- Gou Watanabe
- Division of Surgical Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Natsuko Chiba
- Department of Cancer Biology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Tadashi Nomizu
- Department of Surgery, Hoshi General Hospital, Fukushima, Japan
| | - Akihiko Furuta
- Department of Breast Surgery, Ishinomaki Red Cross Hospital, Ishinomaki, Japan
| | - Kaolu Sato
- Department of Breast Surgery, Ishinomaki Red Cross Hospital, Ishinomaki, Japan
| | - Minoru Miyashita
- Division of Surgical Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroshi Tada
- Division of Surgical Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Akihiko Suzuki
- Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Noriaki Ohuchi
- Division of Surgical Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takanori Ishida
- Division of Surgical Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| |
Collapse
|
45
|
Van Heetvelde M, Van Bockstal M, Poppe B, Lambein K, Rosseel T, Atanesyan L, Deforce D, Van Den Berghe I, De Leeneer K, Van Dorpe J, Vral A, Claes KBM. Accurate detection and quantification of epigenetic and genetic second hits in BRCA1 and BRCA2-associated hereditary breast and ovarian cancer reveals multiple co-acting second hits. Cancer Lett 2018; 425:125-133. [PMID: 29580810 DOI: 10.1016/j.canlet.2018.03.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/10/2018] [Accepted: 03/16/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND This study characterizes the second hit spectrum in BRCA1 and BRCA2-associated breast and ovarian cancers at both gene loci to investigate if second hit mechanisms are mutually exclusive or able to coincide within the same tumor. METHODS Loss of heterozygosity, somatic point mutations and copy number alterations along with promoter methylation were studied in 56 breast and 15 ovarian cancers from BRCA1 and BRCA2 germline mutation carriers. A mathematical methodology was introduced to quantify the tumor cell population carrying a second hit. RESULTS Copy neutral LOH was the most prevalent LOH mechanism in this cohort (BC 69%, OC 67%). However, only 36% of BC and 47% of OC showed LOH in all cancerous cells. Somatic intragenic deletions and methylated subclones were also found in combination with (partial) loss of heterozygosity. Unequivocal deleterious somatic point mutations were not identified in this cohort. CONCLUSION Different mechanisms inactivating the wild type allele are present within the same tumor sample at various extents. Results indicate that BRCA1/2-linked breast and ovarian cancer cells are predominantly characterized by LOH, but harbor a complex combination of second hits at various frequencies.
Collapse
Affiliation(s)
- Mattias Van Heetvelde
- Center for Medical Genetics Ghent, Ghent University Hospital, Medical Research Building 1, Corneel Heymanslaan 10, B-9000, Ghent, Belgium; Cancer Research Institute Ghent (CRIG), B-9000, Ghent, Belgium; Department of Basic Medical Sciences, Ghent University, Entrance 46, De Pintelaan 185, B-9000, Ghent, Belgium.
| | - Mieke Van Bockstal
- Department of Pathology, Ghent University Hospital, Entrance 23, Corneel Heymanslaan 10, B-9000, Ghent, Belgium.
| | - Bruce Poppe
- Center for Medical Genetics Ghent, Ghent University Hospital, Medical Research Building 1, Corneel Heymanslaan 10, B-9000, Ghent, Belgium; Cancer Research Institute Ghent (CRIG), B-9000, Ghent, Belgium.
| | - Kathleen Lambein
- Department of Pathology, AZ St Lucas Hospital, Groenebriel 1, B-9000, Ghent, Belgium; Department of Oncology, KU Leuven, Surgical Oncology, University Hospital Leuven Gasthuisberg, Herestraat 49, O&N1 Box 818, B-3000, Leuven, Belgium.
| | - Toon Rosseel
- Center for Medical Genetics Ghent, Ghent University Hospital, Medical Research Building 1, Corneel Heymanslaan 10, B-9000, Ghent, Belgium.
| | - Lilit Atanesyan
- MRC-Holland, Willem Schoutenstraat 1, 1057 DL, Amsterdam, The Netherlands.
| | - Dieter Deforce
- Cancer Research Institute Ghent (CRIG), B-9000, Ghent, Belgium; Faculty of Pharmaceutical Sciences, Laboratory of Pharmaceutical Biotechnology, Ghent University, Ottergemsesteenweg 460, B-9000, Ghent, Belgium.
| | - Ivo Van Den Berghe
- Department of Pathology, AZ Sint Jan Hospital Brugge-Oostend, Ruddershove 10, B-8000, Brugge, Belgium.
| | - Kim De Leeneer
- Center for Medical Genetics Ghent, Ghent University Hospital, Medical Research Building 1, Corneel Heymanslaan 10, B-9000, Ghent, Belgium; Cancer Research Institute Ghent (CRIG), B-9000, Ghent, Belgium.
| | - Jo Van Dorpe
- Cancer Research Institute Ghent (CRIG), B-9000, Ghent, Belgium; Department of Pathology, Ghent University Hospital, Entrance 23, Corneel Heymanslaan 10, B-9000, Ghent, Belgium.
| | - Anne Vral
- Cancer Research Institute Ghent (CRIG), B-9000, Ghent, Belgium; Department of Basic Medical Sciences, Ghent University, Entrance 46, De Pintelaan 185, B-9000, Ghent, Belgium.
| | - Kathleen B M Claes
- Center for Medical Genetics Ghent, Ghent University Hospital, Medical Research Building 1, Corneel Heymanslaan 10, B-9000, Ghent, Belgium; Cancer Research Institute Ghent (CRIG), B-9000, Ghent, Belgium.
| |
Collapse
|
46
|
RAC1 GTP-ase signals Wnt-beta-catenin pathway mediated integrin-directed metastasis-associated tumor cell phenotypes in triple negative breast cancers. Oncotarget 2018; 8:3072-3103. [PMID: 27902969 PMCID: PMC5356866 DOI: 10.18632/oncotarget.13618] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 10/27/2016] [Indexed: 12/21/2022] Open
Abstract
The acquisition of integrin-directed metastasis-associated (ID-MA) phenotypes by Triple-Negative Breast Cancer (TNBC) cells is caused by an upregulation of the Wnt-beta-catenin pathway (WP). We reported that WP is one of the salient genetic features of TNBC. RAC-GTPases, small G-proteins which transduce signals from cell surface proteins including integrins, have been implicated in tumorigenesis and metastasis by their role in essential cellular functions like motility. The collective percentage of alteration(s) in RAC1 in ER+ve BC was lower as compared to ER-ve BC (35% vs 57%) (brca/tcga/pub2015). High expression of RAC1 was associated with poor outcome for RFS with HR=1.48 [CI: 1.15-1.9] p=0.0019 in the Hungarian ER-veBC cohort. Here we examined how WP signals are transduced via RAC1 in the context of ID-MA phenotypes in TNBC. Using pharmacological agents (sulindac sulfide), genetic tools (beta-catenin siRNA), WP modulators (Wnt-C59, XAV939), RAC1 inhibitors (NSC23766, W56) and WP stimulations (LWnt3ACM, Wnt3A recombinant) in a panel of 6-7 TNBC cell lines, we studied fibronectin-directed (1) migration, (2) matrigel invasion, (3) RAC1 and Cdc42 activation, (4) actin dynamics (confocal microscopy) and (5) podia-parameters. An attenuation of WP, which (a) decreased cellular levels of beta-catenin, as well as its nuclear active-form, (b) decreased fibronectin-induced migration, (c) decreased invasion, (d) altered actin dynamics and (e) decreased podia-parameters was successful in blocking fibronectin-mediated RAC1/Cdc42 activity. Both Wnt-antagonists and RAC1 inhibitors blocked fibronectin-induced RAC1 activation and inhibited the fibronectin-induced ID-MA phenotypes following specific WP stimulation by LWnt3ACM as well as Wnt3A recombinant protein. To test a direct involvement of RAC1-activation in WP-mediated ID-MA phenotypes, we stimulated brain-metastasis specific MDA-MB231BR cells with LWnt3ACM. LWnt3ACM-stimulated fibronectin-directed migration was blocked by RAC1 inhibition in MDA-MB231BR cells. In the light of our previous report that WP upregulation causes ID-MA phenotypes in TNBC tumor cells, here we provide the first mechanism based evidence to demonstrate that WP upregulation signals ID-MA tumor cell phenotypes in a RAC1-GTPase dependent manner involving exchange-factors like TIAM1 and VAV2. Our study demonstrates for the first time that beta-catenin-RAC1 cascade signals integrin-directed metastasis-associated tumor cell phenotypes in TNBC.
Collapse
|
47
|
Vázquez R, Riveiro ME, Astorgues-Xerri L, Odore E, Rezai K, Erba E, Panini N, Rinaldi A, Kwee I, Beltrame L, Bekradda M, Cvitkovic E, Bertoni F, Frapolli R, D'Incalci M. The bromodomain inhibitor OTX015 (MK-8628) exerts anti-tumor activity in triple-negative breast cancer models as single agent and in combination with everolimus. Oncotarget 2018; 8:7598-7613. [PMID: 27935867 PMCID: PMC5352346 DOI: 10.18632/oncotarget.13814] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 11/22/2016] [Indexed: 11/25/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is an aggressive and heterogeneous subgroup of breast tumors clinically defined by the lack of estrogen, progesterone and HER2 receptors, limiting the use of the targeted therapies employed in other breast malignancies. Recent evidence indicates that c-MYC is a key driver of TNBC. The BET-bromodomain inhibitor OTX015 (MK-8628) has potent antiproliferative activity accompanied by c-MYC down-regulation in several tumor types, and has demonstrated synergism with the mTOR inhibitor everolimus in different models. The aim of this study was to evaluate the anti-tumor activity of OTX015 as single agent and in combination with everolimus in TNBC models. OTX015 was assayed in three human TNBC-derived cell lines, HCC1937, MDA-MB-231 and MDA-MB-468, all showing antiproliferative activity after 72 h (GI50 = 75–650 nM). This was accompanied by cell cycle arrest and decreased expression of cancer stem cells markers. However, c-MYC protein and mRNA levels were only down-regulated in MDA-MB-468 cells. Gene set enrichment analysis showed up-regulation of genes involved in epigenetic control of transcription, chromatin and the cell cycle, and down-regulation of stemness-related genes. In vitro, combination with everolimus was additive in HCC1937 and MDA-MB-231 cells, but antagonistic in MDA-MB-468 cells. In MDA-MB-231 murine xenografts, tumor mass was significantly (p < 0.05) reduced by OTX015 with respect to vehicle-treated animals (best T/C = 40.7%). Although everolimus alone was not active, the combination was more effective than OTX015 alone (best T/C = 20.7%). This work supports current clinical trials with OTX015 in TNBC (NCT02259114).
Collapse
Affiliation(s)
- Ramiro Vázquez
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | | | | | - Elodie Odore
- Oncology Therapeutic Development, Clichy, France.,Radiopharmacology Department, Curie Institute-René Huguenin Hospital, Saint Cloud, France
| | - Keyvan Rezai
- Radiopharmacology Department, Curie Institute-René Huguenin Hospital, Saint Cloud, France
| | - Eugenio Erba
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Nicolò Panini
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Andrea Rinaldi
- Institute of Oncology Research (IOR), Bellinzona, Switzerland
| | - Ivo Kwee
- Institute of Oncology Research (IOR), Bellinzona, Switzerland.,Dalle Molle Institute for Artificial Intelligence (IDSIA), Manno, Switzerland.,Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Luca Beltrame
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | | | - Esteban Cvitkovic
- Oncology Therapeutic Development, Clichy, France.,Oncoethix GmbH (formerly Oncoethix SA), Merck Sharp and Dohme Corp., Switzerland
| | - Francesco Bertoni
- Institute of Oncology Research (IOR), Bellinzona, Switzerland.,Oncology Institute of Southern Switzerland (IOSI), Bellinzona, Switzerland
| | - Roberta Frapolli
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Maurizio D'Incalci
- Laboratory of Anti-tumor Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| |
Collapse
|
48
|
Cuyàs E, Fernández-Arroyo S, Alarcón T, Lupu R, Joven J, Menendez JA. Germline BRCA1 mutation reprograms breast epithelial cell metabolism towards mitochondrial-dependent biosynthesis: evidence for metformin-based "starvation" strategies in BRCA1 carriers. Oncotarget 2018; 7:52974-52992. [PMID: 27259235 PMCID: PMC5288162 DOI: 10.18632/oncotarget.9732] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 05/12/2016] [Indexed: 12/17/2022] Open
Abstract
We hypothesized that women inheriting one germline mutation of the BRCA1 gene (“one-hit”) undergo cell-type-specific metabolic reprogramming that supports the high biosynthetic requirements of breast epithelial cells to progress to a fully malignant phenotype. Targeted metabolomic analysis was performed in isogenic pairs of nontumorigenic human breast epithelial cells in which the knock-in of 185delAG mutation in a single BRCA1 allele leads to genomic instability. Mutant BRCA1 one-hit epithelial cells displayed constitutively enhanced activation of biosynthetic nodes within mitochondria. This metabolic rewiring involved the increased incorporation of glutamine- and glucose-dependent carbon into tricarboxylic acid (TCA) cycle metabolite pools to ultimately generate elevated levels of acetyl-CoA and malonyl-CoA, the major building blocks for lipid biosynthesis. The significant increase of branched-chain amino acids (BCAAs) including the anabolic trigger leucine, which can not only promote protein translation via mTOR but also feed into the TCA cycle via succinyl-CoA, further underscored the anabolic reprogramming of BRCA1 haploinsufficient cells. The anti-diabetic biguanide metformin “reversed” the metabolomic signature and anabolic phenotype of BRCA1 one-hit cells by shutting down mitochondria-driven generation of precursors for lipogenic pathways and reducing the BCAA pool for protein synthesis and TCA fueling. Metformin-induced restriction of mitochondrial biosynthetic capacity was sufficient to impair the tumor-initiating capacity of BRCA1 one-hit cells in mammosphere assays. Metabolic rewiring of the breast epithelium towards increased anabolism might constitute an unanticipated and inherited form of metabolic reprogramming linked to increased risk of oncogenesis in women bearing pathogenic germline BRCA1 mutations. The ability of metformin to constrain the production of mitochondrial-dependent biosynthetic intermediates might open a new avenue for “starvation” chemopreventive strategies in BRCA1 carriers.
Collapse
Affiliation(s)
- Elisabet Cuyàs
- ProCURE (Program Against Cancer Therapeutic Resistance), Metabolism and Cancer Group, Catalan Institute of Oncology, Girona, Catalonia, Spain.,Molecular Oncology Group, Girona Biomedical Research Institute (IDIBGI), Girona, Catalonia, Spain
| | - Salvador Fernández-Arroyo
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, IISPV, Universitat Rovira i Virgili, Campus of International Excellence Southern Catalonia, Reus, Spain
| | - Tomás Alarcón
- Institució Catalana d'Estudis i Recerca Avançats (ICREA), Barcelona, Spain.,Computational and Mathematical Biology Research Group, Centre de Recerca Matemàtic (CRM), Barcelona, Spain.,Departament de Matemàtiques, Universitat Autònoma de Barcelona, Barcelona, Spain.,Barcelona Graduate School of Mathematics (BGSMath), Barcelona, Spain
| | - Ruth Lupu
- Mayo Clinic, Department of Laboratory Medicine and Pathology, Division of Experimental Pathology, Rochester, MN, USA.,Mayo Clinic Cancer Center, Rochester, MN, USA
| | - Jorge Joven
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, IISPV, Universitat Rovira i Virgili, Campus of International Excellence Southern Catalonia, Reus, Spain
| | - Javier A Menendez
- ProCURE (Program Against Cancer Therapeutic Resistance), Metabolism and Cancer Group, Catalan Institute of Oncology, Girona, Catalonia, Spain.,Molecular Oncology Group, Girona Biomedical Research Institute (IDIBGI), Girona, Catalonia, Spain
| |
Collapse
|
49
|
De P, Carlson JH, Wu H, Marcus A, Leyland-Jones B, Dey N. Wnt-beta-catenin pathway signals metastasis-associated tumor cell phenotypes in triple negative breast cancers. Oncotarget 2017; 7:43124-43149. [PMID: 27281609 PMCID: PMC5190013 DOI: 10.18632/oncotarget.8988] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 04/05/2016] [Indexed: 02/07/2023] Open
Abstract
Tumor cells acquire metastasis-associated (MA) phenotypes following genetic alterations in them which cause deregulation of different signaling pathways. Earlier, we reported that an upregulation of the Wnt-beta-catenin pathway (WP) is one of the genetic salient features of triple-negative breast cancer (TNBC), and WP signaling is associated with metastasis in TNBC. Using cBioPortal, here we found that collective % of alteration(s) in WP genes, CTNNB1, APC and DVL1 among breast-invasive-carcinomas was 21% as compared to 56% in PAM50 Basal. To understand the functional relevance of WP in the biology of heterogeneous/metastasizing TNBC cells, we undertook this comprehensive study using 15 cell lines in which we examined the role of WP in the context of integrin-dependent MA-phenotypes. Directional movement of tumor cells was observed by confocal immunofluorescence microscopy and quantitative confocal-video-microscopy while matrigel-invasion was studied by MMP7-specific casein-zymography. WntC59, XAV939, sulindac sulfide and beta-catenin siRNA (1) inhibited fibronectin-directed migration, (2) decreased podia-parameters and motility-descriptors, (3) altered filamentous-actin, (4) decreased matrigel-invasion and (5) inhibited cell proliferation as well as 3D clonogenic growth. Sulindac sulfide and beta-catenin siRNA decreased beta-catenin/active-beta-catenin and MMP7. LWnt3ACM-stimulated proliferation, clonogenicity, fibronection-directed migration and matrigel-invasion were perturbed by WP-modulators, sulindac sulfide and GDC-0941. We studied a direct involvement of WP in metastasis by stimulating brain-metastasis-specific MDA-MB231BR cells to demonstrate that LWnt3ACM-stimulated proliferation, clonogenicity and migration were blocked following sulindac sulfide, GDC-0941 and beta-catenin knockdown. We present the first evidence showing a direct functional relationship between WP activation and integrin-dependent MA-phenotypes. By proving the functional relationship between WP activation and MA-phenotypes, our data mechanistically explains (1) why different components of WP are upregulated in TNBC, (2) how WP activation is associated with metastasis and (3) how integrin-dependent MA-phenotypes can be regulated by mitigating the WP.
Collapse
Affiliation(s)
- Pradip De
- Department of Molecular & Experimental Medicine, Avera Research Institute, Sioux Falls, SD, USA.,Department of Internal Medicine, SSOM, University of South Dakota, Sioux Falls, SD, USA
| | - Jennifer H Carlson
- Department of Molecular & Experimental Medicine, Avera Research Institute, Sioux Falls, SD, USA
| | - Hui Wu
- Department of Hematology and Oncology, WCI, Emory University, Atlanta, GA, USA
| | - Adam Marcus
- Department of Hematology and Oncology, WCI, Emory University, Atlanta, GA, USA
| | - Brian Leyland-Jones
- Department of Molecular & Experimental Medicine, Avera Research Institute, Sioux Falls, SD, USA.,Department of Internal Medicine, SSOM, University of South Dakota, Sioux Falls, SD, USA
| | - Nandini Dey
- Department of Molecular & Experimental Medicine, Avera Research Institute, Sioux Falls, SD, USA.,Department of Internal Medicine, SSOM, University of South Dakota, Sioux Falls, SD, USA
| |
Collapse
|
50
|
Dey S, Marino N, Bishop K, Dahlgren PN, Shendre A, Storniolo AM, He C, Tanaka H. A plasma telomeric cell-free DNA level in unaffected women with BRCA1 or/and BRCA2 mutations: a pilot study. Oncotarget 2017; 9:4214-4222. [PMID: 29423116 PMCID: PMC5790533 DOI: 10.18632/oncotarget.23767] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 12/21/2017] [Indexed: 01/05/2023] Open
Abstract
Plasma cell-free DNA (cfDNA) is a small DNA fragment circulating in the bloodstream originating from both non-tumor- and tumor-derived cells. A previous study showed that a plasma telomeric cfDNA level decreases in sporadic breast cancer patients compared to controls. Tumor suppressor gene products including BRCA1 and BRCA2 (BRCA1&2) play an important role in telomere maintenance. In this study, we hypothesized that the plasma telomeric cfDNA level is associated with the mutation status of BRCA1&2 genes. To test this hypothesis, we performed plasma telomeric cfDNA quantitative PCR (qPCR)-based assays to compare 28 women carriers of the BRCA1&2 mutation with age-matched controls of 28 healthy women. The results showed that the plasma telomeric cfDNA level was lower in unaffected BRCA1&2 mutation carriers than in age-matched controls from non-obese women (BMI < 30), while there was no association between unaffected BRCA1&2 mutation carriers and age-matched controls in obese women (BMI > 30). Moreover, the plasma telomeric cfDNA level applied aptly to the Tyrer-Cuzick model in non-obese women. These findings suggest that circulating cfDNA may detect dysfunctional telomeres derived from cells with BRCA1&2 mutations and, therefore, its level is associated with breast cancer susceptibility. This pilot study warrants further investigation to elucidate the implication of plasma telomeric cfDNA levels in relation to cancer and obesity.
Collapse
Affiliation(s)
- Shatovisha Dey
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Natascia Marino
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.,Susan G. Komen Tissue Bank at IU Simon Cancer Center, Indianapolis, IN, USA
| | - Kanokwan Bishop
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Paige N Dahlgren
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Aditi Shendre
- Department of Epidemiology, Richard M. Fairbanks School of Public Health, Indiana University, Indianapolis, IN, USA
| | - Anna Maria Storniolo
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.,Susan G. Komen Tissue Bank at IU Simon Cancer Center, Indianapolis, IN, USA
| | - Chunyan He
- Department of Internal Medicine, College of Medicine, Markey Cancer Center, University of Kentucky, Lexington, KY, USA
| | - Hiromi Tanaka
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| |
Collapse
|