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Li B, Xu W, Cao J, Guo D, Tao Z, Jin J, Hu X. A study of clinical and molecular characteristics in bilateral primary breast cancer. Cancer Med 2023; 12:15881-15892. [PMID: 37293877 PMCID: PMC10469734 DOI: 10.1002/cam4.6226] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/18/2023] [Accepted: 06/01/2023] [Indexed: 06/10/2023] Open
Abstract
BACKGROUND Bilateral primary breast cancer (BPBC) is a rare type of breast cancer. Studies on the clinicopathologic and molecular characteristics of BPBC in a metastatic context are very limited. METHODS A total of 574 unselected metastatic breast cancer patients with clinical information were enrolled in our next-generation sequencing (NGS) database. Patients with BPBC from our NGS database were regarded as the study cohort. In addition, 1467 patients with BPBC and 2874 patients with unilateral breast cancer (UBC) from the Surveillance, Epidemiology, and End Results (SEER) public database were also analyzed to determine the characteristics of BPBC. RESULTS Among the 574 patients enrolled in our NGS database, 20 (3.5%) patients had bilateral disease, comprising 15 (75%) patients with synchronous bilateral disease and 5 (25%) patients with metachronous bilateral disease. Eight patients had bilateral hormone receptor-positive (HR+)/human epidermal growth factor receptor-negative (HER2-) tumors, and three had unilateral HR+/HER2- tumors. More HR+/HER2- tumors and lobular components were found in BPBC patients than in UBC patients. The molecular subtype of the metastatic lesions in three patients was inconsistent with either side of the primary lesions, which suggested the importance of rebiopsy. Strong correlations in clinicopathologic features between the left and right tumors in BPBC were exhibited in the SEER database. In our NGS database, only one BPBC patient was found with a pathogenic germline mutation in BRCA2. The top mutated somatic genes in BPBC patients were similar to those in UBC patients, including TP53 (58.8% in BPBC and 60.6% in UBC) and PI3KCA (47.1% in BPBC and 35.9% in UBC). CONCLUSIONS Our study suggested that BPBC may tend to be lobular carcinoma and have the HR+/HER2- subtype. Although our study did not find specific germline and somatic mutations in BPBC, more research is needed for verification.
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Affiliation(s)
- Bin Li
- Department of Breast and Urologic Medical OncologyFudan University Shanghai Cancer CenterShanghaiChina
- Department of Oncology, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Weiqi Xu
- Department of Oncology, Shanghai Medical CollegeFudan UniversityShanghaiChina
- Department of Hepatic SurgeryFudan University Shanghai Cancer CenterShanghaiChina
| | - Jianing Cao
- Department of Breast and Urologic Medical OncologyFudan University Shanghai Cancer CenterShanghaiChina
- Department of Oncology, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Duancheng Guo
- Department of Breast and Urologic Medical OncologyFudan University Shanghai Cancer CenterShanghaiChina
| | - Zhonghua Tao
- Department of Breast and Urologic Medical OncologyFudan University Shanghai Cancer CenterShanghaiChina
- Department of Oncology, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Juan Jin
- Department of Breast and Urologic Medical OncologyFudan University Shanghai Cancer CenterShanghaiChina
- Department of Oncology, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Xichun Hu
- Department of Breast and Urologic Medical OncologyFudan University Shanghai Cancer CenterShanghaiChina
- Department of Oncology, Shanghai Medical CollegeFudan UniversityShanghaiChina
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Jiao Y, Li S, Gong J, Zheng K, Xie Y. Comprehensive analysis of the expression and prognosis for RAI2: A promising biomarker in breast cancer. Front Oncol 2023; 13:1134149. [PMID: 37064084 PMCID: PMC10090471 DOI: 10.3389/fonc.2023.1134149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/20/2023] [Indexed: 03/31/2023] Open
Abstract
IntroductionRetinoic acid-induced 2 (RAI2) was initially related to cell differentiation and induced by retinoic acid. RAI2 has been identified as an emerging tumor suppressor in breast cancer and colorectal cancer.MethodsIn this study, we performed systematic analyses of RAI2 in breast cancer. Meta-analysis and Kaplan-Meier survival curves were applied to identify the survival prediction potential of RAI2. Moreover, the association between RAI2 expression and the abundance of six tumor-infiltrating immune cells was investigated by TIMER, including B cells, CD8+ T cells, CD4+ T cells, B cells, dendritic cells, neutrophils, and macrophages. The expression profiles of high and low RAI2 mRNA levels in GSE7390 were compared to identify differentially expressed genes (DEGs) and the biological function of these DEGs was analyzed by R software, which was further proved in GSE7390.ResultsOur results showed that the normal tissues had more RAI2 expression than breast cancer tissues. Patients with high RAI2 expression were related to a favorable prognosis and more immune infiltrates. A total of 209 DEGs and 182 DEGs were identified between the expression profiles of high and low RAI2 mRNA levels in the GSE7390 and GSE21653 databases, respectively. Furthermore, Gene Ontology (GO) enrichment indicated that these DEGs from two datasets were both mainly distributed in “biological processes” (BP), including “organelle fission” and “nuclear division”. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways analysis demonstrated that these DEGs from two datasets were both significantly enriched in the “cell cycle”. Common hub genes between the DEGs in GSE7390 and GSE21653 were negatively associated with RAI2 expression, including CCNA2, MAD2L1, MELK, CDC20, and CCNB2.DiscussionsThese results above suggested that RAI2 might play a pivotal role in preventing the initiation and progression of breast cancer. The present study may contribute to understanding the molecular mechanisms of RAI2 and enriching biomarkers to predict patient prognosis in breast cancer.
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Affiliation(s)
- Ying Jiao
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Shiyu Li
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Juejun Gong
- Department of Oncology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kun Zheng
- Biological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton, United Kingdom
- Institute for Life Sciences, University of Southampton, Southampton, United Kingdom
| | - Ya Xie
- Department of Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Ya Xie,
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Girolimetti G, Marchio L, De Leo A, Mangiarelli M, Amato LB, Zanotti S, Taffurelli M, Santini D, Gasparre G, Ceccarelli C. Mitochondrial DNA analysis efficiently contributes to the identification of metastatic contralateral breast cancers. J Cancer Res Clin Oncol 2020; 147:507-516. [PMID: 33236215 PMCID: PMC7817585 DOI: 10.1007/s00432-020-03459-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 11/06/2020] [Indexed: 01/03/2023]
Abstract
Purpose In daily practice, a contralateral breast cancer (CBC) is usually considered as a new independent tumor despite the indications of several studies showing that the second neoplasia may be a metastatic spread of the primary tumor. Recognition of clonal masses in the context of multiple synchronous or metachronous tumors is crucial for correct prognosis, therapeutic choice, and patient management. Mitochondrial DNA (mtDNA) sequencing shows high informative potential in the diagnosis of synchronous neoplasms, based on the fact that somatic mtDNA mutations are non-recurrent events, whereas tumors sharing them have a common origin. We here applied this technique to reveal clonality of the CBC with respect to the first tumor. Methods We analyzed 30 sample pairs of primary breast cancers and synchronous or metachronous CBCs with detailed clinical information available and compared standard clinico-pathological criteria with mtDNA sequencing to reveal the metastatic nature of CBCs. Results MtDNA analysis was informative in 23% of the cases, for which it confirmed a clonal origin of the second tumor. In addition, it allowed to solve two ambiguous cases where histopathological criteria had failed to be conclusive and to suggest a clonal origin for two additional cases that had been classified as independent by pathologists. Conclusion Overall, the mtDNA-based classification showed a more accurate predictive power than standard histopathology in identifying cases of metastatic rather than bilateral breast cancers in our cohort, suggesting that mtDNA sequencing may be a more precise and easy-to-use method to be introduced in daily routine to support and improve histopathological diagnoses.
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Affiliation(s)
- Giulia Girolimetti
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138, Bologna, Italy.,Center for Applied Biomedical Research (CRBA), University of Bologna, 40138, Bologna, Italy.,Centro di Studio e Ricerca sulle Neoplasie Ginecologiche, University of Bologna, 40138, Bologna, Italy.,Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University Hospital S.Orsola-Malpighi, Via G. Massarenti, 9, 40138, Bologna, BO, Italy
| | - Lorena Marchio
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138, Bologna, Italy.,Center for Applied Biomedical Research (CRBA), University of Bologna, 40138, Bologna, Italy.,Centro di Studio e Ricerca sulle Neoplasie Ginecologiche, University of Bologna, 40138, Bologna, Italy.,Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University Hospital S.Orsola-Malpighi, Via G. Massarenti, 9, 40138, Bologna, BO, Italy
| | - Antonio De Leo
- Centro di Studio e Ricerca sulle Neoplasie Ginecologiche, University of Bologna, 40138, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138, Bologna, Italy
| | - Miriam Mangiarelli
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138, Bologna, Italy.,Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University Hospital S.Orsola-Malpighi, Via G. Massarenti, 9, 40138, Bologna, BO, Italy
| | - Laura Benedetta Amato
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138, Bologna, Italy.,Center for Applied Biomedical Research (CRBA), University of Bologna, 40138, Bologna, Italy.,Centro di Studio e Ricerca sulle Neoplasie Ginecologiche, University of Bologna, 40138, Bologna, Italy.,Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University Hospital S.Orsola-Malpighi, Via G. Massarenti, 9, 40138, Bologna, BO, Italy
| | - Simone Zanotti
- Breast Unit, Department of Woman, Child and Urological Diseases, Sant'Orsola Hospital, University of Bologna, 40138, Bologna, Italy
| | - Mario Taffurelli
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138, Bologna, Italy.,Breast Unit, Department of Woman, Child and Urological Diseases, Sant'Orsola Hospital, University of Bologna, 40138, Bologna, Italy
| | - Donatella Santini
- Centro di Studio e Ricerca sulle Neoplasie Ginecologiche, University of Bologna, 40138, Bologna, Italy.,Operative Unit of Pathology, Sant'Orsola Hospital, 40138, Bologna, Italy
| | - Giuseppe Gasparre
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138, Bologna, Italy. .,Center for Applied Biomedical Research (CRBA), University of Bologna, 40138, Bologna, Italy. .,Centro di Studio e Ricerca sulle Neoplasie Ginecologiche, University of Bologna, 40138, Bologna, Italy. .,Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University Hospital S.Orsola-Malpighi, Via G. Massarenti, 9, 40138, Bologna, BO, Italy.
| | - Claudio Ceccarelli
- Centro di Studio e Ricerca sulle Neoplasie Ginecologiche, University of Bologna, 40138, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138, Bologna, Italy
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