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Rossi C, Inzani FS, Cesari S, Rizzo G, Paulli M, Pedrazzoli P, Lasagna A, Lucioni M. The Role of Oncogenic Viruses in the Pathogenesis of Sporadic Breast Cancer: A Comprehensive Review of the Current Literature. Pathogens 2024; 13:451. [PMID: 38921749 PMCID: PMC11206847 DOI: 10.3390/pathogens13060451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/27/2024] Open
Abstract
Breast cancer is the most common malignancy in the female sex; although recent therapies have significantly changed the natural history of this cancer, it remains a significant challenge. In the past decade, evidence has been put forward that some oncogenic viruses may play a role in the development of sporadic breast cancer; however, data are scattered and mostly reported as sparse case series or small case-control studies. In this review, we organize and report current evidence regarding the role of high-risk human papillomavirus, mouse mammary tumor virus, Epstein-Barr virus, cytomegalovirus, bovine leukemia virus, human polyomavirus 2, and Merkel cell polyomavirus in the pathogenesis of breast cancer.
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Affiliation(s)
- Chiara Rossi
- Section of Anatomic Pathology, Cerba HealthCare Lombardia, 20139 Milan, Italy
| | - Frediano Socrate Inzani
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, IRCCS San Matteo Hospital Foundation, 27100 Pavia, Italy
| | - Stefania Cesari
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, IRCCS San Matteo Hospital Foundation, 27100 Pavia, Italy
| | - Gianpiero Rizzo
- Unit of Medical Oncology, IRCCS San Matteo Hospital Foundation, 27100 Pavia, Italy
| | - Marco Paulli
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, IRCCS San Matteo Hospital Foundation, 27100 Pavia, Italy
| | - Paolo Pedrazzoli
- Unit of Medical Oncology, IRCCS San Matteo Hospital Foundation, 27100 Pavia, Italy
| | - Angioletta Lasagna
- Unit of Medical Oncology, IRCCS San Matteo Hospital Foundation, 27100 Pavia, Italy
| | - Marco Lucioni
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, IRCCS San Matteo Hospital Foundation, 27100 Pavia, Italy
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Hsu YC, Tsai MH, Wu G, Liu CL, Chang YC, Lam HB, Su PY, Lung CF, Yang PS. Role of Epstein-Barr Virus in Breast Cancer: Correlation with Clinical Outcome and Survival Analysis. J Cancer 2024; 15:2403-2411. [PMID: 38495506 PMCID: PMC10937271 DOI: 10.7150/jca.93631] [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: 12/26/2023] [Accepted: 02/18/2024] [Indexed: 03/19/2024] Open
Abstract
Background: Breast cancer is the most prevalent cancer among women worldwide. The potential involvement of Epstein-Barr virus (EBV) in breast cancer pathogenesis has been a subject of debate, but its correlation with clinical outcomes remains uncertain. Methods: In this study, we collected 276 pathologically confirmed breast cancer tissue samples from the tissue bank of MacKay Memorial Hospital and the National Health Research Institutes in Taiwan. DNA was extracted from frozen tissue using The QIAamp DNA Mini Kit. The Taqman quantitative PCR method was employed to assess the EBV copy number per cell in these samples, using NAMALWA cells as a reference. We performed statistical analyses, including 2 × 2 contingency tables, Cox regression analysis, and Kaplan-Meier survival curves, to explore the association between clinicopathologic factors and survival outcomes in breast cancer patients. We analyzed both relapse survival, which reflects the period patients remain free from cancer recurrence post-treatment, and overall survival, which encompasses all-cause mortality. Results: Our results revealed a significant association between EBV status and relapse survival (hazard ratio: 2.75, 95% CI: 1.30, 5.86; p = 0.008) in breast cancer patients. However, no significant association was found in overall survival outcomes. Additionally, we observed significant associations between ER status and tumor histologic grade with both overall and relapse survival. Patients with EBV-positive tumors exhibited higher recurrence rates compared to those with EBV-negative tumors. Furthermore, we noted significant correlations between EBV status and HER-2 (p = 0.0005) and histological grade (p = 0.02) in our cohort of breast cancer patients. Conclusions: The presence of EBV in breast cancer tumors appears to exert an impact on patient outcomes, particularly concerning recurrence rates. Our findings highlight the significance of considering EBV status as a potential prognostic marker in breast cancer patients. Nonetheless, further research is essential to elucidate the underlying molecular mechanisms and develop novel therapeutic approaches.
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Affiliation(s)
- Yi-Chiung Hsu
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan, Taiwan
- Center for Astronautical Physics and Engineering, National Central University, Taoyuan, Taiwan
| | - Ming-Han Tsai
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Guani Wu
- Department of Statistics & Data Science, University of California Los Angeles, Los Angeles, CA, USA
| | - Chien-Liang Liu
- Department of General Surgery, MacKay Memorial Hospital, Taipei, Taiwan
| | - Yuan-Ching Chang
- Department of General Surgery, MacKay Memorial Hospital, Taipei, Taiwan
| | - Hung-Bun Lam
- Department of General Surgery, MacKay Memorial Hospital, Taipei, Taiwan
| | - Pei- Yu Su
- Institute of Microbiology and Immunology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Chun-Fan Lung
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan, Taiwan
| | - Po-Sheng Yang
- Department of General Surgery, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
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Lekshmy M, Dhanya CR, Smrithi JS, Sindhurani JA, Vandanamthadathil JJ, Veettil JT, Anila L, Lathakumari VS, Nayar AM, Madhavan M. Peptide Vaccines as Therapeutic and Prophylactic Agents for Female-Specific Cancers: The Current Landscape. Pharmaceuticals (Basel) 2023; 16:1054. [PMID: 37513965 PMCID: PMC10383774 DOI: 10.3390/ph16071054] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/11/2023] [Accepted: 07/16/2023] [Indexed: 07/30/2023] Open
Abstract
Breast and gynecologic cancers are significant global threats to women's health and those living with the disease require lifelong physical, financial, and social support from their families, healthcare providers, and society as a whole. Cancer vaccines offer a promising means of inducing long-lasting immune response against the disease. Among various types of cancer vaccines available, peptide vaccines offer an effective strategy to elicit specific anti-tumor immune responses. Peptide vaccines have been developed based on tumor associated antigens (TAAs) and tumor specific neoantigens which can also be of viral origin. Molecular alterations in HER2 and non-HER2 genes are established to be involved in the pathogenesis of female-specific cancers and hence were exploited for the development of peptide vaccines against these diseases, most of which are in the latter stages of clinical trials. However, prophylactic vaccines for viral induced cancers, especially those against Human Papillomavirus (HPV) infection are well established. This review discusses therapeutic and prophylactic approaches for various types of female-specific cancers such as breast cancer and gynecologic cancers with special emphasis on peptide vaccines. We also present a pipeline for the design and evaluation of a multiepitope peptide vaccine that can be active against female-specific cancers.
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Affiliation(s)
- Manju Lekshmy
- Department of Botany and Biotechnology, St. Xavier’s College, Thumba, Thiruvananthapuram 695586, Kerala, India;
| | | | | | | | | | | | - Leelamma Anila
- Department of Biochemistry, NSS College, Nilamel, Kollam 691535, Kerala, India;
| | - Vishnu Sasidharan Lathakumari
- Department of Biochemistry and Industrial Microbiology, Sree Narayana College for Women, Kollam 691001, Kerala, India;
| | - Adhira M. Nayar
- Department of Zoology, Mahatma Gandhi College, Thiruvananthapuram 695004, Kerala, India;
| | - Maya Madhavan
- Department of Biochemistry, Government College for Women, Thiruvananthapuram 695014, Kerala, India
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Zheng H, Zhao H, Zhang W, Zhang Y, Zhang Y, Ye B, Guo Q. Epstein-Barr virus immediate-early protein Zta mediates the proliferation and migration of HER2-overexpressing cancer cells. Arch Virol 2023; 168:150. [PMID: 37133552 DOI: 10.1007/s00705-023-05774-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 03/27/2023] [Indexed: 05/04/2023]
Abstract
Epstein-Barr virus immediate-early protein Zta plays an active role in altering cellular gene expression, which may be fundamentally linked to the viral life cycle, cell cycle, cell growth, and differentiation. HER2 is associated with a wide variety of human cancers, and its knockdown significantly reverses the malignant features of HER2-positive cancers. The aim of this study was to investigate the potential role of Zta in regulating HER2 expression and phenotype changes of MDA-MB-453 cells. Our results indicate that ectopic expression of Zta resulted in downregulation of the HER2 protein in cancer cells (MDA-MB-453, SKBR-3, BT474, and SKOV-3). The Zta protein significantly decreased HER2 mRNA and protein expression in MDA-MB-453 cells in a dose-dependent manner. Mechanistically, Zta recognized and targeted the promoter of HER2 gene, reducing the transcriptional activity of the HER2 gene. Zta induced G0/G1 arrest of MDA-MB-453 cells, inhibiting their proliferation and migration activity. These data suggest that Zta may act as a transforming suppressor of the HER2 gene.
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Affiliation(s)
- Hongling Zheng
- Department of Emergency, Jinan Children's Hospital, Jinan, 250022, People's Republic of China
| | - Haitao Zhao
- Department of Hematology, Binzhou People's Hospital, Binzhou, 256600, People's Republic of China
| | - Wei Zhang
- Department of Emergency, Jinan Children's Hospital, Jinan, 250022, People's Republic of China
| | - Yan Zhang
- Department of Emergency, Jinan Children's Hospital, Jinan, 250022, People's Republic of China
| | - Yun Zhang
- Department of Respiratory, Jinan Children's Hospital, Jinan, 250022, People's Republic of China
| | - Bing Ye
- Department of Emergency, Jinan Children's Hospital, Jinan, 250022, People's Republic of China.
| | - Qingwei Guo
- Department of Hematology and Oncology, Jinan Children's Hospital, Jinan, 250022, People's Republic of China.
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5
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Agolli A, Ishak A, Viswanathan M, Co EL, Shivakumar J, Agolli O. Epstein-Barr Viral Infection and the Risk for Breast Cancer: A Systematic Review. Int J Hematol Oncol Stem Cell Res 2023; 17:114-124. [PMID: 37637768 PMCID: PMC10452945 DOI: 10.18502/ijhoscr.v17i2.12650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 10/23/2022] [Indexed: 08/29/2023] Open
Abstract
Background: The prevalence of breast cancer has increased and has currently become one of the most common cancers. Although the majority of the world's population is infected with Epstein Barr Virus (EBV) during their lives, the severity of symptoms varies and not everyone infected with EBV is diagnosed with cancer. EBV might increase the risk for breast cancer either by activating the HER2/HER3 signaling cascades or by creating a state of prolonged immune stimulation. Materials and Methods: A systematic search of several electronic databases including PubMed, ScienceDirect, Cochrane, EBSCOhost, JSTOR, and Scopus, following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines was conducted. The primary outcome of this review was to assess the prevalence of people with breast cancer that had a prior EBV infection. Results: For this review, 24 case-control studies were accepted. Our analyses included 1.989 breast cancer cases versus 1.034 control cases. EBV was found to be present in 27.9% of breast cancer cases versus 8.02% found in the normal breast tissue of controls. All affected people were women with a mean age was 48.19 years. The most common type of breast cancer found in EBV-infected tissues was invasive breast cancer. Cases were reported sporadically in a wide geographical distribution, and the prevalence varied from 4.6% - 64.1%. Conclusions: A previous EBV infection might be associated with a higher risk for breast malignancy. The most common type is invasive cancer. It mainly affects women and geographical variances are observed. More studies are necessary to elucidate the role of EBV in the mechanisms of breast cancer. Also, it is crucial to improve the prevention and treatment strategies.
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Affiliation(s)
- Arjola Agolli
- Pennsylvania State University, College of Medicine, Hershey, USA
| | - Angela Ishak
- Division of Clinical & Translational Research, Larkin Health System, South Miami, FL, USA
| | - Mahima Viswanathan
- The University of Texas Health, Houston School of Public Health, Houston, USA
| | - Edzel Lorraine Co
- Division of Clinical & Translational Research, Larkin Health System, South Miami, FL, USA
| | | | - Olsi Agolli
- Division of Clinical & Translational Research, Larkin Health System, South Miami, FL, USA
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Shechter O, Sausen DG, Gallo ES, Dahari H, Borenstein R. Epstein-Barr Virus (EBV) Epithelial Associated Malignancies: Exploring Pathologies and Current Treatments. Int J Mol Sci 2022; 23:14389. [PMID: 36430864 PMCID: PMC9699474 DOI: 10.3390/ijms232214389] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/06/2022] [Accepted: 11/14/2022] [Indexed: 11/22/2022] Open
Abstract
Epstein-Barr virus (EBV) is one of eight known herpesviruses with the potential to infect humans. Globally, it is estimated that between 90-95% of the population has been infected with EBV. EBV is an oncogenic virus that has been strongly linked to various epithelial malignancies such as nasopharyngeal and gastric cancer. Recent evidence suggests a link between EBV and breast cancer. Additionally, there are other, rarer cancers with weaker evidence linking them to EBV. In this review, we discuss the currently known epithelial malignancies associated with EBV. Additionally, we discuss and establish which treatments and therapies are most recommended for each cancer associated with EBV.
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Affiliation(s)
- Oren Shechter
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA 23501, USA
| | - Daniel G. Sausen
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA 23501, USA
| | - Elisa S. Gallo
- Tel-Aviv Sourasky Medical Center, Division of Dermatology, Tel-Aviv 6423906, Israel
| | - Harel Dahari
- The Program for Experimental and Theoretical Modeling, Division of Hepatology, Department of Medicine, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA
| | - Ronen Borenstein
- The Program for Experimental and Theoretical Modeling, Division of Hepatology, Department of Medicine, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA
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7
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Zhang WT, Zhu GL, Xu WQ, Zhang W, Wang HZ, Wang YB, Li YX. Association of PD-1/PD-L1 expression and Epstein--Barr virus infection in patients with invasive breast cancer. Diagn Pathol 2022; 17:61. [PMID: 35842661 PMCID: PMC9287995 DOI: 10.1186/s13000-022-01234-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 05/19/2022] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Causative factors of breast cancer include infections, such as Epstein-Barr virus (EBV) infection. The aim of this study was to analyze the clinicopathological features of EBV-positive (IBC) and determine if EBV affects programmed cell death receptor 1 (PD-1)/PD ligand 1 (PD-L1) expression in IBC, similar to other EBV-infected tumors with PD-L1/PD-1 expression. METHODS We collected 140 samples of IBC tissues and 25 samples of adjacent tissues. All patients were followed-up by telephone from the day of surgery to December 2020. Chromogenic in-situ hybridization was performed to evaluate EBV-encoded RNA (EBER). Immunohistochemistry was performed to evaluate PD-L1 and PD-1 expressions. The correlation between PD1/PDL1 expression and clinicopathological features was also analyzed. RESULTS EBER was detected in 57 of 140 (40.7%) IBC tissues and not detected in any adjacent tissue (P < 0.05). Clinicopathologic features of patients were consistent with EBV-associated IBC. EBV infection was correlated with the mass size, menopausal status, axillary lymph node metastasis, vascular invasion, Ki-67 index, clinical stage, and estrogen receptor and progesterone receptor expressions (all P < 0.05), but not with the histological type, invasive ductal carcinoma histological grade, or human epidermal growth factor receptor 2 (HER2) expression (all P > 0.05). The positive rate of PD-1/PD-L1 expression was higher in the EBV-positive group than in the EBV-negative group (P < 0.05). The Kaplan-Meier univariate survival analysis showed that EBV was associated with poor disease-free survival and overall survival in patients with IBC. PD-L1/PD-1 expression could predict a poor prognosis. CONCLUSIONS In this study, clinicopathologic characteristics of patients were consistent with EBV-infected IBC. Patients with EBV-positive breast cancer were more likely to have elevated PD-1/PDL-1 expression compared to those with EBV-negative breast cancer. This finding could serve as a basis to explore therapeutic targets, particularly immunotherapy, for patients with IBC.
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Affiliation(s)
- Wei-Tong Zhang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Gui-Lu Zhu
- Department of Clinical Pathology, Yijishan Hospital, Wannan Medical College, Wuhu, 241001, China
| | - Wu-Qin Xu
- Department of Clinical Pathology, Yijishan Hospital, Wannan Medical College, Wuhu, 241001, China
| | - Wei Zhang
- Department of Clinical Pathology, Yijishan Hospital, Wannan Medical College, Wuhu, 241001, China
| | - Hui-Zhen Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Ya-Bing Wang
- Breast Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, 241001, China.
| | - Yong-Xiang Li
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
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8
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Salih MM, Higgo AA, Khalifa AS, Eed EM. Incidence of Epstein-Barr Virus Among Women With Breast Cancer Using Monoclonal Antibodies for Latent Membrane Protein 1 (LMP1). In Vivo 2022; 36:1513-1518. [PMID: 35478129 PMCID: PMC9087060 DOI: 10.21873/invivo.12860] [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: 01/26/2022] [Revised: 03/01/2022] [Accepted: 03/23/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Breast cancer is a common type of cancer in Sudan. Numerous studies propose viral oncogenesis as an etiological factor for breast cancer. The aim of the study was to analyze the presence of the Epstein-Barr virus (EBV) using monoclonal antibodies against latent membrane protein 1 (LAMP1) and determine the correlation between the presence of EBV and clinicopathological characteristics. PATIENTS AND METHODS This study used immunohistochemistry to analyze the presence of EBV in 202 samples from Sudanese women diagnosed with breast cancer. Clinicopathological data were collected from patient records from the Radiation and Isotopes Centre in Khartoum State, Republic of Sudan. RESULTS This study included 202 patients 168 (83.2%), 16 (7.9%), and 18 (8.9%), diagnosed with invasive ductal carcinoma, invasive lobular carcinoma, and papillary carcinoma, respectively. Axillary lymph node metastasis was present in 57 (28.2%) of cases, while 11 patients (5.4%) tested positive for EBV. The mean age of patients was 48.14±14.4 years. EBV infection was more frequently detected in invasive ductal carcinoma cases, and EBV positivity was not associated with cancer type, grade, progesterone levels, and HER2 expression. On the other hand, a statistically significant association was found between EBV presence and lymph node involvement, estrogen receptor status, and age group. CONCLUSION EBV may not play a vital role in the pathogenesis of breast carcinoma in Sudanese women.
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Affiliation(s)
- Magdi M Salih
- Department of Clinical Laboratory Science, College of Applied Medical Sciences, Taif University, Taif, Kingdom of Saudi Arabia;
| | - Amjed A Higgo
- Faculty of Medical Laboratory Science, Histopathology Department, Al Neelain University, Coralville, IA, U.S.A
| | - Amany S Khalifa
- Clinical Pathology and Pharmaceutic Department, Faculty of Pharmacy, Taif University, Taif, Kingdom of Saudi Arabia
| | - Emad M Eed
- Department of Clinical Laboratory Science, College of Applied Medical Sciences, Taif University, Taif, Kingdom of Saudi Arabia
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Afzal S, Fiaz K, Noor A, Sindhu AS, Hanif A, Bibi A, Asad M, Nawaz S, Zafar S, Ayub S, Hasnain SB, Shahid M. Interrelated Oncogenic Viruses and Breast Cancer. Front Mol Biosci 2022; 9:781111. [PMID: 35419411 PMCID: PMC8995849 DOI: 10.3389/fmolb.2022.781111] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 03/15/2022] [Indexed: 12/23/2022] Open
Abstract
Breast Cancer is a multifactorial disease and recent evidence that viruses have a greater role in its aetiology and pathophysiology than previously hypothesized, has garnered a lot of attention in the past couple of years. After the role of Mouse Mammary Tumour Virus (MMTV) in the oncogenesis of breast cancer has been proved in mice, search for similar viruses found quite a plausible relation of Human Papilloma Virus (HPV), Epstein–Barr virus (EBV), and Bovine Leukaemia Virus (BLV) with breast cancer. However, despite practical efforts to provide some clarity in this issue, the evidence that viruses cause breast cancer still remains inconclusive. Therefore, this article aims to clarify some ambiguity and elucidate the correlation of breast cancer and those particular viruses which are found to bring about the development of tumorigenesis by a previous infection or by their own oncogenic ability to manipulate the molecular mechanisms and bypass the immune system of the human body. Although many studies have reported, both, the individual and co-existing presence of HPV, EBV, MMTV, and BLV in patient sample tissues, particularly in Western women, and proposed oncogenic mechanisms, majority of the collective survey of literature fails to provide a delineated and strong conclusive evidence that viruses do, in fact, cause breast cancer. Measures to prevent these viral infections may curb breast cancer cases, especially in the West. More studies are needed to provide a definite conclusion.
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Wang FL, Zhang XL, Yang M, Lin J, Yue YF, Li YD, Wang X, Shu Q, Jin HC. Prevalence and characteristics of mouse mammary tumor virus-like virus associated breast cancer in China. Infect Agent Cancer 2021; 16:47. [PMID: 34174934 PMCID: PMC8235620 DOI: 10.1186/s13027-021-00383-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 06/07/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Despite extensive molecular epidemiological studies, the prevalence and characteristics of Mouse Mammary Tumor Virus-Like Virus (MMTV-LV) in Chinese women breast cancer are still unclear. Besides, the prevalence of MMTV-LV in women breast cancer tissue varies in different countries and its dependent factors remain inconclusive. METHODS In the first part of the study, a case-control study was performed. 119 breast cancer samples (84 from Northern China and 35 from Southern China) and 50 breast fibroadenoma specimens were collected from Chinese women patients. MMTV-like env sequence and the homology to MMTV env gene were analysed by semi-nested polymerase chain reaction (PCR). We also explored the association of MMTV-LV prevalence with sample sources (Southern and Northern China) and patients' clinicopathological characteristics. To investigate the dependent factors of the prevalence of MMTV-LV in breast cancer worldwide, a meta-analysis was conducted in the second part of the study. RESULTS We found that the prevalence of MMTV-LV was much higher in breast cancer tissues (17.65%) than that in breast fibroadenoma specimens (4.00%) (P < 0.05). MMTV-LV prevalence in Chinese women breast cancer tissues was significantly different between Southern China (5.71%) and Northern China (22.62%) (P < 0.05). The prevalence of MMTV-LV also associates significantly with expression of HER2, but shows no significant correlation with other parameters. In the meta-analysis, we found that MMTV-LV prevalence in breast cancer tissue was dependent on the distribution of M. domesticus mouse (M. d), M. musculus mouse (M.m) and M.castaneus mouse (M.c) worldwide (P < 0.05). CONCLUSION The distribution of house mice may be a crucial environmental factor that explains the geographic differences in human breast cancer incidence. Our findings may provide a potential avenue of prevention, diagnosis and treatment for breast cancer.
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Affiliation(s)
- Fa-Liang Wang
- Department of Surgical Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Binsheng Road 3333, Hangzhou, 310052, China.
| | - Xiao-Li Zhang
- Electron Microscope Room, Medical School of Hebei North University, Zhangjiakou, China
| | - Ming Yang
- Department of Surgical Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Binsheng Road 3333, Hangzhou, 310052, China
| | - Jun Lin
- Department of Medical Oncology, the Second People's Hospital of Jande, Hangzhou, China
| | - Yong-Fang Yue
- Department of Obstetrics and Gynecology, the Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ya-Dan Li
- Laboratory of Cancer Biology, Department of Medical Oncology, Key lab of Biotherapy in Zhejiang, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, East Qingchun Road 3, Hangzhou, 310000, China
| | - Xian Wang
- Laboratory of Cancer Biology, Department of Medical Oncology, Key lab of Biotherapy in Zhejiang, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, East Qingchun Road 3, Hangzhou, 310000, China
| | - Qiang Shu
- Department of Surgical Oncology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Binsheng Road 3333, Hangzhou, 310052, China. .,Department of Cardiothoracic Surgery, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Binsheng Road 3333, Hangzhou, 310052, China.
| | - Hong-Chuan Jin
- Laboratory of Cancer Biology, Department of Medical Oncology, Key lab of Biotherapy in Zhejiang, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, East Qingchun Road 3, Hangzhou, 310000, China.
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Abstract
Abstract We have considered viruses and their contribution to breast cancer. Mouse mammary tumour virus The prevalence of mouse mammary tumour virus (MMTV) is 15-fold higher in human breast cancer than in normal and benign human breast tissue controls. Saliva is the most plausible means of transmission. MMTV has been identified in dogs, cats, monkeys, mice and rats. The causal mechanisms include insertional oncogenesis and mutations in the protective enzyme ABOBEC3B. Human papilloma virus The prevalence of high risk human papilloma viruses (HPV) is frequently six fold higher in breast cancer than in normal and benign breast tissue controls. Women who develop HPV associated cervical cancer are at higher than normal risk of developing HPV associated breast cancer. Koilocytes have been identified in breast cancers which is an indication of HPV oncogenicity. The causal mechanisms of HPVs in breast cancer appear to differ from cervical cancer. Sexual activity is the most common form of HPV transmission. HPVs are probably transmitted from the cervix to the breast by circulating extra cellular vesicles. Epstein Barr virus The prevalence of Epstein Barr virus (EBV) is five fold higher in breast cancer than in normal and benign breast tissue controls. EBV is mostly transmitted from person to person via saliva. EBV infection predisposes breast epithelial cells to malignant transformation through activation of HER2/HER3 signalling cascades. EBV EBNA genes contribute to tumour growth and metastasis and have the ability to affect the mesenchymal transition of cells. Bovine leukemia virus Bovine leukemia virus (BLV) infects beef and dairy cattle and leads to various cancers. The prevalence of BLV is double in human breast cancers compared to controls. Breast cancer is more prevalent in red meat eating and cow’s milk consuming populations. BLV may be transmitted to humans from cattle by the consumption of red meat and cow’s milk. Conclusion The evidence that MMTV, high risk HPVs and EBVs have causal roles in human breast cancer is compelling. The evidence with respect to BLV is more limited but it is likely to also have a causal role in human breast cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s13027-021-00366-3.
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Affiliation(s)
- James S Lawson
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia.
| | - Wendy K Glenn
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia
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Roa López GA, Suárez JJ, Barato P, García NV. Lack of Association Between Epstein-Barr Virus and Mammary Tumours in Dogs. J Vet Res 2018; 62:309-315. [PMID: 30584610 PMCID: PMC6295990 DOI: 10.2478/jvetres-2018-0045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 08/24/2018] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION Epstein-Barr virus (EBV) is a γ-herpesvirus associated with various neoplasms in humans and is a probable aetiological agent in breast cancer; however, a causal relationship has not yet been established. Because of the epidemiological and clinicopathological similarities between breast cancer and canine mammary tumours, dogs have been proposed as a valid model for breast cancer. MATERIAL AND METHODS A total of 47 canine mammary gland tumour tissues were processed by routine histopathological technique with haematoxylin-eosin staining and classified according to the type of neoplasm. DNA was extracted from paraffin-embedded tissues and the EBNA-1 gene and the BamHI-W region specific for EBV were evaluated by nested PCR. RESULTS The histopathological evaluation revealed 2 benign neoplasms, and many carcinomas: 2 in situ, 9 simple, 3 solid, 10 complex, and 21 mixed. One sample was positive for the EBNA-1 gene, while all were negative for the BamHI-W region. CONCLUSION No association was found between EBV and mammary tumours in dogs. However, here we report for the first time the presence of an EBV gene sequence in a canine mammary tumour. It is likely that detection of EBV might be affected by the quality and quantity of DNA extracted from paraffin-embedded tissues. Additional studies are necessary to establish any association of EBV with mammary gland cancer in humans and in dogs, which could eventually lead to better public health prevention and control.
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Affiliation(s)
| | - Jhon Jairo Suárez
- Cytogenetic Research Group, Phylogeny and Evolution of Populations, University of Tolima, 730006Ibagué, Colombia
| | - Paola Barato
- Corpavet Veterinary Pathology Corporation, 111321Bogotá D.C., Colombia
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Comparison of Clinicopathologic Parameters and Survivals Between Epstein-Barr Virus–positive and Her2-positive Gastric Cancers. Appl Immunohistochem Mol Morphol 2017; 25:609-614. [DOI: 10.1097/pai.0000000000000353] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Medina-Ortega ÁP, López-Valencia D, Mosquera-Monje SL, Mora-Obando DL, Dueñas-Cuéllar RA. Virus de Epstein-Barr y su relación con el desarrollo del cáncer. IATREIA 2017. [DOI: 10.17533/udea.iatreia.v30n2a03] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Regulation of EBV LMP1-triggered EphA4 downregulation in EBV-associated B lymphoma and its impact on patients' survival. Blood 2016; 128:1578-89. [PMID: 27338098 DOI: 10.1182/blood-2016-02-702530] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 06/15/2016] [Indexed: 12/21/2022] Open
Abstract
Epstein-Barr virus (EBV), an oncogenic human virus, is associated with several lymphoproliferative disorders, including Burkitt lymphoma, Hodgkin disease, diffuse large B-cell lymphoma (DLBCL), and posttransplant lymphoproliferative disorder (PTLD). In vitro, EBV transforms primary B cells into lymphoblastoid cell lines (LCLs). Recently, several studies have shown that receptor tyrosine kinases (RTKs) play important roles in EBV-associated neoplasia. However, details of the involvement of RTKs in EBV-regulated B-cell neoplasia and malignancies remain largely unclear. Here, we found that erythropoietin-producing hepatocellular receptor A4 (EphA4), which belongs to the largest RTK Eph family, was downregulated in primary B cells post-EBV infection at the transcriptional and translational levels. Overexpression and knockdown experiments confirmed that EBV-encoded latent membrane protein 1 (LMP1) was responsible for this EphA4 suppression. Mechanistically, LMP1 triggered the extracellular signal-regulated kinase (ERK) pathway and promoted Sp1 to suppress EphA4 promoter activity. Functionally, overexpression of EphA4 prevented LCLs from proliferation. Pathologically, the expression of EphA4 was detected in EBV(-) tonsils but not in EBV(+) PTLD. In addition, an inverse correlation of EphA4 expression and EBV presence was verified by immunochemical staining of EBV(+) and EBV(-) DLBCL, suggesting EBV infection was associated with reduced EphA4 expression. Analysis of a public data set showed that lower EphA4 expression was correlated with a poor survival rate of DLBCL patients. Our findings provide a novel mechanism by which EphA4 can be regulated by an oncogenic LMP1 protein and explore its possible function in B cells. The results provide new insights into the role of EphA4 in EBV(+) PTLD and DLBCL.
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Marrão G, Habib M, Paiva A, Bicout D, Fallecker C, Franco S, Fafi-Kremer S, Simões da Silva T, Morand P, Freire de Oliveira C, Drouet E. Epstein-Barr virus infection and clinical outcome in breast cancer patients correlate with immune cell TNF-α/IFN-γ response. BMC Cancer 2014; 14:665. [PMID: 25213133 PMCID: PMC4171567 DOI: 10.1186/1471-2407-14-665] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 09/08/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND For nearly two decades now, various studies have reported detecting the Epstein-Barr virus (EBV) in breast cancer (BC) cases. Yet the results are unconvincing, and their interpretation has remained a matter of debate. We have now presented prospective data on the effect of EBV infection combined with survival in patients enrolled in a prospective study. METHODS We assessed 85 BC patients over an 87-month follow-up period to determine whether EBV infection, evaluated by qPCR in both peripheral blood mononuclear cells (PBMCs) and tumor biopsies, interacted with host cell components that modulate the evolution parameters of BC. We also examined the EBV replicating form by the titration of serum anti-ZEBRA antibodies. Immunological studies were performed on a series of 35 patients randomly selected from the second half of the survey, involving IFN-γ and TNF-α intracellular immunostaining tests performed via flow cytometry analysis in peripheral NK and T cells, in parallel with EBV signature. The effect of the EBV load in the blood or tumor tissue on patient survival was analyzed using univariate and multivariate analyses, combined with an analysis of covariance. RESULTS Our study represents the first ever report of the impact of EBV on the clinical outcome of BC patients, regardless of tumor histology or treatment regimen. No correlation was found between: (i) EBV detection in tumor or PBMCs and tumor characteristics; (ii) EBV and other prognostic factors. Notably, patients exhibiting anti-ZEBRA antibodies at high titers experienced poorer overall survival (p = 0.002). Those who recovered from their disease were found to have a measurable EBV DNA load, together with a high frequency of IFN-γ and TNF-α producing PBMCs (p = 0.04), which indicates the existence of a Th1-type polarized immune response in both the tumor and its surrounding tissue. CONCLUSIONS The replicative form of EBV, as investigated using anti-ZEBRA titers, correlated with poorer outcomes, whereas the latent form of the virus that was measured and quantified using the EBV tumor DNA conferred a survival advantage to BC patients, which could occur through the activation of non-specific anti-tumoral immune responses.
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Affiliation(s)
- Gina Marrão
- Université de Grenoble-Alpes, Unit for Virus Host-Cell Interactions, UMI 3265 UJF-CNRS-EMBL, CIBB, 71 Avenue des Martyrs, F-38042 Grenoble, Cedex 9, France
- Portuguese Institute for Blood and Transplantation, University Hospital, Coimbra, Portugal
| | - Mohammed Habib
- Université de Grenoble-Alpes, Unit for Virus Host-Cell Interactions, UMI 3265 UJF-CNRS-EMBL, CIBB, 71 Avenue des Martyrs, F-38042 Grenoble, Cedex 9, France
| | - Artur Paiva
- Portuguese Institute for Blood and Transplantation, University Hospital, Coimbra, Portugal
| | - Dominique Bicout
- Team Environment and Health Prediction in Populations Unit – TIMC Laboratory, UMR CNRS 5525, Université Joseph Fourier, Grenoble, France
| | - Catherine Fallecker
- Université de Grenoble-Alpes, Unit for Virus Host-Cell Interactions, UMI 3265 UJF-CNRS-EMBL, CIBB, 71 Avenue des Martyrs, F-38042 Grenoble, Cedex 9, France
| | - Sofia Franco
- Department of Gynecology, University Hospital, Coimbra, & Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Samira Fafi-Kremer
- Unit of Virology, University Hospital, Grenoble, France
- Laboratoire de Virologie, Hôpitaux Universitaires de Strasbourg, Université de Strasbourg, Strasbourg, France
| | | | - Patrice Morand
- Université de Grenoble-Alpes, Unit for Virus Host-Cell Interactions, UMI 3265 UJF-CNRS-EMBL, CIBB, 71 Avenue des Martyrs, F-38042 Grenoble, Cedex 9, France
- Unit of Virology, University Hospital, Grenoble, France
| | - Carlos Freire de Oliveira
- Department of Gynecology, University Hospital, Coimbra, & Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Emmanuel Drouet
- Université de Grenoble-Alpes, Unit for Virus Host-Cell Interactions, UMI 3265 UJF-CNRS-EMBL, CIBB, 71 Avenue des Martyrs, F-38042 Grenoble, Cedex 9, France
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17
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Glenn WK, Heng B, Delprado W, Iacopetta B, Whitaker NJ, Lawson JS. Epstein-Barr virus, human papillomavirus and mouse mammary tumour virus as multiple viruses in breast cancer. PLoS One 2012; 7:e48788. [PMID: 23183846 PMCID: PMC3501510 DOI: 10.1371/journal.pone.0048788] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The purpose of this investigation is to determine if Epstein Barr virus (EBV), high risk human papillomavirus (HPV), and mouse mammary tumour viruses (MMTV) co-exist in some breast cancers. MATERIALS AND METHODS All the specimens were from women residing in Australia. For investigations based on standard PCR, we used fresh frozen DNA extracts from 50 unselected invasive breast cancers. For normal breast specimens, we used DNA extracts from epithelial cells from milk donated by 40 lactating women. For investigations based on in situ PCR we used 27 unselected archival formalin fixed breast cancer specimens and 18 unselected archival formalin fixed normal breast specimens from women who had breast reduction surgery. Thirteen of these fixed breast cancer specimens were ductal carcinoma in situ (dcis) and 14 were predominantly invasive ductal carcinomas (idc). RESULTS EBV sequences were identified in 68%, high risk HPV sequences in 50%, and MMTV sequences in 78% of DNA extracted from 50 invasive breast cancer specimens. These same viruses were identified in selected normal and breast cancer specimens by in situ PCR. Sequences from more than one viral type were identified in 72% of the same breast cancer specimens. Normal controls showed these viruses were also present in epithelial cells in human milk - EBV (35%), HPV, 20%) and MMTV (32%) of 40 milk samples from normal lactating women, with multiple viruses being identified in 13% of the same milk samples. CONCLUSIONS We conclude that (i) EBV, HPV and MMTV gene sequences are present and co-exist in many human breast cancers, (ii) the presence of these viruses in breast cancer is associated with young age of diagnosis and possibly an increased grade of breast cancer.
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MESH Headings
- Aged
- Animals
- Base Sequence
- Breast Neoplasms/pathology
- Breast Neoplasms/virology
- Carcinoma, Intraductal, Noninfiltrating/pathology
- Carcinoma, Intraductal, Noninfiltrating/virology
- Case-Control Studies
- Cell Nucleus/virology
- DNA, Neoplasm/genetics
- Epstein-Barr Virus Nuclear Antigens/metabolism
- Female
- Genome, Viral/genetics
- Herpesvirus 4, Human/genetics
- Humans
- Lipopolysaccharide Receptors/metabolism
- Mammary Tumor Virus, Mouse/genetics
- Mice
- Middle Aged
- Molecular Sequence Data
- Neoplasm Grading
- Neoplasm Invasiveness
- Papillomaviridae/genetics
- Receptor, ErbB-2/metabolism
- Receptors, Estrogen/metabolism
- Receptors, Progesterone/metabolism
- Tumor Suppressor Protein p53/metabolism
- Viral Matrix Proteins/metabolism
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Affiliation(s)
- Wendy K. Glenn
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia
| | - Benjamin Heng
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia
| | | | - Barry Iacopetta
- University Department of Surgery, University of Western Australia, Perth, Australia
| | - Noel J. Whitaker
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia
| | - James S. Lawson
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia
- * E-mail:
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Hachana M, Amara K, Ziadi S, Romdhane E, Gacem RB, Trimeche M. Investigation of Epstein–Barr virus in breast carcinomas in Tunisia. Pathol Res Pract 2011; 207:695-700. [DOI: 10.1016/j.prp.2011.09.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 07/28/2011] [Accepted: 09/05/2011] [Indexed: 10/15/2022]
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Wynne A, Kanwar RK, Khanna R, Kanwar JR. Recent Advances on the Possible Neuroprotective Activities of Epstein-Barr Virus Oncogene BARF1 Protein in Chronic Inflammatory Disorders of Central Nervous System. Curr Neuropharmacol 2011; 8:268-75. [PMID: 21358976 PMCID: PMC3001219 DOI: 10.2174/157015910792246191] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Revised: 03/11/2010] [Accepted: 03/26/2010] [Indexed: 12/15/2022] Open
Abstract
Multiple sclerosis and neurodegenerative diseases in which cells of the central nervous system (CNS) are lost or damaged are rapidly increasing in frequency, and there is neither effective treatment nor cure to impede or arrest their destructive course. The Epstein-Barr virus is a human gamma-herpesvirus that infects more than 90% of the human population worldwide and persisting for the lifetime of the host. It is associated with numerous epithelial cancers, principally undifferentiated nasopharyngeal carcinoma and gastric carcinoma. Individuals with a history of symptomatic primary EBV infection, called infectious mononucleosis, carry a moderately higher risk of developing multiple sclerosis (MS). It is not known how EBV infection potentially promotes autoimmunity and central nervous system (CNS) tissue damage in MS. Recently it has been found that EBV isolates from different geographic regions have highly conserved BARF1 epitopes. BARF1 protein has the neuroprotective and mitogenic activity, thus may be useful to combat and overcome neurodegenerative disease. BARF1 protein therapy can potentially be used to enhance the neuroprotective activities by combinational treatment with anti-inflammatory antagonists and neuroprotectors in neural disorders.
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Affiliation(s)
- Alicia Wynne
- Laboratory of Immunology and Molecular Biomedical Research (LIMBR), Centre for Biotechnology and Interdisciplinary Biosciences (BioDeakin), Institute for Technology & Research Innovation (ITRI), Deakin University, Geelong, Technology Precinct (GTP), Pigdons Road, Waurn Ponds, Geelong, Victoria 3217, Australia
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20
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Requirement for LMP1-induced RON receptor tyrosine kinase in Epstein-Barr virus-mediated B-cell proliferation. Blood 2011; 118:1340-9. [PMID: 21659546 DOI: 10.1182/blood-2011-02-335448] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
EBV, an oncogenic human herpesvirus, can transform primary B lymphocytes into immortalized lymphoblastoid cell lines (LCLs) through multiple regulatory mechanisms. However, the involvement of protein tyrosine kinases in the infinite proliferation of B cells is not clear. In this study, we performed kinase display assays to investigate this subject and identified a specific cellular target, Recepteur d'Origine Nantais (RON) tyrosine kinase, expressed in LCLs but not in primary B cells. Furthermore, we found that latent membrane protein 1 (LMP1), an important EBV oncogenic protein, enhanced RON expression through its C-terminal activation region-1 (CTAR1) by promoting NF-κB binding to the RON promoter. RON knockdown decreased the proliferation of LCLs, and transfection with RON compensated for the growth inhibition caused by knockdown of LMP1. Immunohistochemical analysis revealed a correlation between LMP1 and RON expression in biopsies from posttransplantation lymphoproliferative disorder (PTLD), suggesting that LMP1-induced RON expression not only is essential for the growth of LCLs but also may contribute to the pathogenesis of EBV-associated PTLD. Our study is the first to reveal the impact of RON on the proliferation of transformed B cells and to suggest that RON may be a novel therapeutic target for EBV-associated lymphoproliferative diseases.
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Abstract
Trastuzumab is the first Food and Drug Administration (FDA)-approved therapeutic targeting a HER-family receptor tyrosine kinase (HER2/ErbB2/neu). Although trastuzumab is effective in the treatment of HER2-positive breast cancer, a substantial proportion of patients will not respond to trastuzumab-based regimens (primary resistance), and those who do respond will often lose clinical benefits (i.e., secondary resistance). Although multiple mechanisms underlying the development of secondary trastuzumab resistance have been identified, few studies have specifically examined the basis of primary trastuzumab resistance. Here, we review these studies, which together demonstrate that trastuzumab induces phenotypic changes in tumor cells, even when they are not growth inhibited by trastuzumab, including changes in gene expression. These changes have important clinical implications, including the sensitization of malignant cells to other therapeutic drugs. In light of these observations, we propose that the conventional definition of resistance as it pertains to trastuzumab and, perhaps, to other targeted therapeutics, may require revision. The results of these studies will be useful in informing the direction of future basic and clinical research focused on overcoming primary trastuzumab resistance.
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Affiliation(s)
- Jason A Wilken
- Yale University, School of Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, New Haven, Connecticut, USA
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22
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Lorenzetti MA, De Matteo E, Gass H, Martinez Vazquez P, Lara J, Gonzalez P, Preciado MV, Chabay PA. Characterization of Epstein Barr virus latency pattern in Argentine breast carcinoma. PLoS One 2010; 5:e13603. [PMID: 21042577 PMCID: PMC2962632 DOI: 10.1371/journal.pone.0013603] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2010] [Accepted: 10/01/2010] [Indexed: 12/26/2022] Open
Abstract
Introduction Epstein-Barr virus (EBV)-associated tumors show different expression patterns of latency genes. Since in breast carcinoma this pattern is not yet fully described, our aim was to characterize EBV latency pattern in our EBV positive breast carcinoma series. Methods The study was conducted on 71 biopsies of breast carcinoma and in 48 non-neoplastic breast controls. EBNA1, LMP2A and LMP1 expression was assessed by immunohistochemistry with monoclonal antibodies, while viral genomic DNA and EBERs RNA transcripts expression was performed by in situ hybridization. EBV presence was confirmed by PCR. Results EBV genomic DNA and EBNA1 expression were detected in 31% (22/71) of patients specifically restricted to tumor epithelial cells in breast carcinoma while all breast control samples were negative for both viral DNA and EBNA1 protein. LMP2A was detected in 73% of EBNA1 positive cases, none of which expressed either LMP1 protein or EBERs transcripts. Conclusions These findings suggest that EBV expression pattern in the studied biopsies could be different from those previously observed in breast carcinoma cell lines and lead us to suggest a new, EBNA1, LMP2A positive and LMP1 and EBERs negative latency profile in breast carcinoma in our population.
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Affiliation(s)
- Mario A Lorenzetti
- Molecular Biology Laboratory, Pathology Division, Ricardo Gutiérrez Children Hospital, Ciudad de Buenos Aires, Argentina.
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Possible DNA viral factors of human breast cancer. Cancers (Basel) 2010; 2:498-512. [PMID: 24281079 PMCID: PMC3835088 DOI: 10.3390/cancers2020498] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Revised: 04/03/2010] [Accepted: 04/12/2010] [Indexed: 02/07/2023] Open
Abstract
Viruses are considered to be one of the high-risk factors closely related to human breast cancer. However, different studies of viruses in breast cancer present conflicting results and some of these works remain in dispute. DNA viruses, such as specific types of human papillomaviruses (HPV), Epstein–Barr virus (EBV), human cytomegalovirus (HCMV), herpes simplex virus (HSV), and human herpes virus type 8 (HHV-8), have emerged as causal factors of some human cancers. These respective exogenous viruses and the possibility of multiple viral factors are discussed in this review.
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Amarante MK, Watanabe MAE. The possible involvement of virus in breast cancer. J Cancer Res Clin Oncol 2008; 135:329-37. [PMID: 19009309 DOI: 10.1007/s00432-008-0511-2] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2008] [Accepted: 10/28/2008] [Indexed: 12/25/2022]
Abstract
It is well known that the etiology of human breast cancer is significantly affected by environmental factors. Virus-associated cancer refers to a cancer where viral infection results in the malignant transformation of the host's infected cells. Human papillomaviruses (HPV), mouse mammary tumor virus (MMTV) and Epstein-Barr (EBV) virus are prime candidate viruses as agents of human breast cancer. The precise role that viruses play in tumorigenesis is not clear, but it seems that they are responsible for causing only one in a series of steps required for cancer development. The idea that a virus could cause breast cancer has been investigated for quite some time, even though breast cancer could be a hereditary disease; however, hereditary breast cancer is estimated to account for a small percentage of all breast cancer cases. Based on current research, this review present at moment, substantial, but not conclusive, evidence that HPV, EBV and MMTV may be involved in breast cancer.
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Affiliation(s)
- Marla Karine Amarante
- Department of Pathological Sciences, Biological Sciences Center, State University of Londrina, Londrina, PR, Brazil
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Najy AJ, Day KC, Day ML. The ectodomain shedding of E-cadherin by ADAM15 supports ErbB receptor activation. J Biol Chem 2008; 283:18393-401. [PMID: 18434311 DOI: 10.1074/jbc.m801329200] [Citation(s) in RCA: 147] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The zinc-dependent disintegrin metalloproteinases (a disintegrin and metalloproteinases (ADAMs) have been implicated in several disease processes, including human cancer. Previously, we demonstrated that the expression of a catalytically active member of the ADAM family, ADAM15, is associated with the progression of prostate and breast cancer. The accumulation of the soluble ectodomain of E-cadherin in human serum has also been associated with the progression of prostate and breast cancer and is thought to be mediated by metalloproteinase shedding. Utilizing two complementary models, overexpression and stable short hairpin RNA-mediated knockdown of ADAM15 in breast cancer cells, we demonstrated that ADAM15 cleaves E-cadherin in response to growth factor deprivation. We also demonstrated that the extracellular shedding of E-cadherin was abrogated by a metalloproteinase inhibitor and through the introduction of a catalytically inactive mutation in ADAM15. We have made the novel observation that this soluble E-cadherin fragment was found in complex with the HER2 and HER3 receptors in breast cancer cells. These interactions appeared to stabilize HER2 heterodimerization with HER3 and induced receptor activation and signaling through the Erk pathway, supporting both cell migration and proliferation. In this study, we provide evidence that ADAM15 catalyzes the cleavage of E-cadherin to generate a soluble fragment that in turn binds to and stimulates ErbB receptor signaling.
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Affiliation(s)
- Abdo J Najy
- Department of Urology and Program in Cellular and Molecular Biology, University of Michigan, Ann Arbor, MI 48109, USA
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