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Sausen DG, Poirier MC, Spiers LM, Smith EN. Mechanisms of T cell evasion by Epstein-Barr virus and implications for tumor survival. Front Immunol 2023; 14:1289313. [PMID: 38179040 PMCID: PMC10764432 DOI: 10.3389/fimmu.2023.1289313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/27/2023] [Indexed: 01/06/2024] Open
Abstract
Epstein-Barr virus (EBV) is a prevalent oncogenic virus estimated to infect greater than 90% of the world's population. Following initial infection, it establishes latency in host B cells. EBV has developed a multitude of techniques to avoid detection by the host immune system and establish lifelong infection. T cells, as important contributors to cell-mediated immunity, make an attractive target for these immunoevasive strategies. Indeed, EBV has evolved numerous mechanisms to modulate T cell responses. For example, it can augment expression of programmed cell death ligand-1 (PD-L1), which inhibits T cell function, and downregulates the interferon response, which has a strong impact on T cell regulation. It also modulates interleukin secretion and can influence major histocompatibility complex (MHC) expression and presentation. In addition to facilitating persistent EBV infection, these immunoregulatory mechanisms have significant implications for evasion of the immune response by tumor cells. This review dissects the mechanisms through which EBV avoids detection by host T cells and discusses how these mechanisms play into tumor survival. It concludes with an overview of cancer treatments targeting T cells in the setting of EBV-associated malignancy.
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Affiliation(s)
- D. G. Sausen
- School of Medicine, Eastern Virginia Medical School, Norfolk, VA, United States
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2
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Desimio MG, Covino DA, Rivalta B, Cancrini C, Doria M. The Role of NK Cells in EBV Infection and Related Diseases: Current Understanding and Hints for Novel Therapies. Cancers (Basel) 2023; 15:cancers15061914. [PMID: 36980798 PMCID: PMC10047181 DOI: 10.3390/cancers15061914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
The Epstein-Barr virus (EBV) is a ubiquitous herpesvirus most often transmitted during infancy and infecting the vast majority of human beings. Usually, EBV infection is nearly asymptomatic and results in life-long persistency of the virus in a latent state under the control of the host immune system. Yet EBV can cause an acute infectious mononucleosis (IM), particularly in adolescents, and is associated with several malignancies and severe diseases that pose a serious threat to individuals with specific inborn error of immunity (IEI). While there is a general consensus on the requirement for functional CD8 T cells to control EBV infection, the role of the natural killer (NK) cells of the innate arm of immunity is more enigmatic. Here we provide an overview of the interaction between EBV and NK cells in the immunocompetent host as well as in the context of primary and secondary immunodeficiencies. Moreover, we report in vitro data on the mechanisms that regulate the capacity of NK cells to recognize and kill EBV-infected cell targets and discuss the potential of recently optimized NK cell-based immunotherapies for the treatment of EBV-associated diseases.
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Affiliation(s)
- Maria G Desimio
- Primary Immunodeficiency Research Unit, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - Daniela A Covino
- Primary Immunodeficiency Research Unit, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - Beatrice Rivalta
- Primary Immunodeficiency Research Unit, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Caterina Cancrini
- Primary Immunodeficiency Research Unit, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Margherita Doria
- Primary Immunodeficiency Research Unit, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
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3
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EBNA2 driven enhancer switching at the CIITA-DEXI locus suppresses HLA class II gene expression during EBV infection of B-lymphocytes. PLoS Pathog 2021; 17:e1009834. [PMID: 34352044 PMCID: PMC8370649 DOI: 10.1371/journal.ppat.1009834] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/17/2021] [Accepted: 07/23/2021] [Indexed: 11/18/2022] Open
Abstract
Viruses suppress immune recognition through diverse mechanisms. Epstein-Barr Virus (EBV) establishes latent infection in memory B-lymphocytes and B-cell malignancies where it impacts B-cell immune function. We show here that EBV primary infection of naïve B-cells results in a robust down-regulation of HLA genes. We found that the viral encoded transcriptional regulatory factor EBNA2 bound to multiple regulatory regions in the HLA locus. Conditional expression of EBNA2 correlated with the down regulation of HLA class II transcription. EBNA2 down-regulation of HLA transcription was found to be dependent on CIITA, the major transcriptional activator of HLA class II gene transcription. We identified a major EBNA2 binding site downstream of the CIITA gene and upstream of DEXI, a dexamethasone inducible gene that is oriented head-to-head with CIITA gene transcripts. CRISPR/Cas9 deletion of the EBNA2 site upstream of DEXI attenuated CIITA transcriptional repression. EBNA2 caused an increase in DEXI transcription and a graded change in histone modifications with activation mark H3K27ac near the DEXI locus, and a loss of activation marks at the CIITA locus. A prominent CTCF binding site between CIITA and DEXI enhancers was mutated and further diminished the effects of EBNA2 on CIITA. Analysis of HiC data indicate that DEXI and CIITA enhancers are situated in different chromosome topological associated domains (TADs). These findings suggest that EBNA2 down regulates HLA-II genes through the down regulation of CIITA, and that this down regulation is an indirect consequence of EBNA2 enhancer formation at a neighboring TAD. We propose that enhancer competition between these neighboring chromosome domains represents a novel mechanism for gene regulation demonstrated by EBNA2.
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4
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Jiang Y, Ding Y, Liu S, Luo B. The role of Epstein–Barr virus-encoded latent membrane proteins in host immune escape. Future Virol 2021. [DOI: 10.2217/fvl-2020-0320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Epstein–Barr virus (EBV) is a type IV herpesvirus that widely infects the vast majority of adults, and establishes a latent infection pattern in host cells to escape the clearance of immune system. The virus is intimately associated with the occurrence and progression of lymphomas and epithelial cell cancers. EBV latent membrane proteins (LMPs) can assist its immune escape by downregulating host immune response. Besides EBV, LMPs have important effects on the functions of exosomes and autophagy, which also help EBV to escape immune surveillance. These escape mechanisms may provide conditions for further development of EBV-associated tumors. In this article, we discussed the potential functions of EBV-encoded LMPs in promoting immune escape.
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Affiliation(s)
- Yuanyuan Jiang
- Department of Medical Affairs of The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266000, China
- Department of Pathogenic Biology, Qingdao University Medical College, 308 Ningxia Road, Qingdao, 266021, China
| | - Yuan Ding
- Department of Special Examination, Qingdao Women & Children Hospital, Qingdao, 266035, China
| | - Shuzhen Liu
- Department of Medical Affairs of The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266000, China
| | - Bing Luo
- Department of Pathogenic Biology, Qingdao University Medical College, 308 Ningxia Road, Qingdao, 266021, China
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5
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Campion NJ, Ally M, Jank BJ, Ahmed J, Alusi G. The molecular march of primary and recurrent nasopharyngeal carcinoma. Oncogene 2021; 40:1757-1774. [PMID: 33479496 DOI: 10.1038/s41388-020-01631-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 01/30/2023]
Abstract
Nasopharyngeal carcinoma (NPC) results from the aberrant and uncontrolled growth of the nasopharyngeal epithelium. It is highly associated with the Epstein-Barr virus, especially in regions where it is endemic. In the last decade, significant advances in genetic sequencing techniques have allowed the discovery of many new abnormal molecular processes that undoubtedly contribute to the establishment, growth and spread of this deadly disease. In this review, we consider NPC as EBV induced. We summarise the recent discoveries and how they add to our understanding of the pathophysiology of NPC in the context of genomics first in primary and then in recurrent disease. Overall, we find key early events lead to p16 inactivation and cyclin D1 expression, allowing latent viral infection. Host and viral factors work together to affect a variety of molecular pathways, the most fundamental being activation of NF-κB. Nonetheless, much still yearns to be discovered, especially in recurrent NPC.
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Affiliation(s)
- Nicholas J Campion
- Department of Otorhinolaryngology and Head and Neck Surgery, Barts Health NHS Trust, The Royal London Hospital, Whitechapel Rd, Whitechapel, London, E1 1BB, UK. .,Department of Otorhinolaryngology, Vienna General Hospital, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.
| | - Munira Ally
- Department of Otorhinolaryngology and Head and Neck Surgery, Barts Health NHS Trust, The Royal London Hospital, Whitechapel Rd, Whitechapel, London, E1 1BB, UK
| | - Bernhard J Jank
- Department of Otorhinolaryngology, Vienna General Hospital, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Jahangir Ahmed
- Department of Otorhinolaryngology and Head and Neck Surgery, Barts Health NHS Trust, The Royal London Hospital, Whitechapel Rd, Whitechapel, London, E1 1BB, UK
| | - Ghassan Alusi
- Department of Otorhinolaryngology and Head and Neck Surgery, Barts Health NHS Trust, The Royal London Hospital, Whitechapel Rd, Whitechapel, London, E1 1BB, UK
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6
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Wang ZH, Pei XF, Zhu ZQ, Lin Z, Mao YY, Xu XL, Luo YL, Zhang L, Peng PJ. CD47 Overexpression Is Associated with Epstein-Barr Virus Infection and Poor Prognosis in Patients with Nasopharyngeal Carcinoma. Onco Targets Ther 2020; 13:3325-3334. [PMID: 32368091 PMCID: PMC7183341 DOI: 10.2147/ott.s245023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 04/04/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose Little is known about the clinical significance of CD47 expression and its association with Epstein–Barr virus (EBV) infection in patients with nasopharyngeal carcinoma (NPC). The aim of this study was to clarify the prognostic value and role of CD47 in EBV-associated NPC. Materials and Methods Sixty-six cases of non-metastatic NPC were retrospectively reviewed. Tissues were collected for immunohistochemical staining of CD47 and the EBV-encoded oncoprotein latent membrane protein 1 (LMP1). Western blotting and quantitative real-time PCR were performed to determine the CD47 and LMP1 levels in common human NPC cell lines. Additionally, CD47 and LMP1 expression in a constructed EBV-positive human NPC cell (CNE-2-EBV+) and a stable cell line transfected with LMP1 plasmid (CNE-2-LMP1) was assessed. Next, we used Western blotting to assess the decrease in CD47 expression on CNE-2-LMP1 cells after transfecting them with small interfering RNA (siRNA)-targeting LMP1. Results In NPC patients, CD47 overexpression was significantly associated with disease recurrence (P=0.010), leading to poorer disease-free survival (DFS; P=0.002) and overall survival (P=0.021). Multivariate Cox proportional hazards models demonstrated that CD47 (HR=5.452, P=0.016) was an independent prognostic factor of DFS. Moreover, CD47 expression was associated with plasma EBV-DNA copy number and LMP1 tissue expression. Among the human NPC cell lines, CD47 and LMP1 expression was notably higher in the EBV-positive C666-1 cell line than in the EBV-negative cell lines. Furthermore, EBV infection upregulated CD47 expression via LMP1-mediated pathways in human NPC cells. Conclusion This study indicated that CD47 is related to EBV infection in NPC patients, and it is a feasible biomarker.
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Affiliation(s)
- Zhi-Hui Wang
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, People's Republic of China.,Department of Thoracic Oncology, The Cancer Center of the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China.,Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China
| | - Xiao-Feng Pei
- Department of Thoracic Oncology, The Cancer Center of the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China.,Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China
| | - Zhi-Quan Zhu
- Department of Thoracic Oncology, The Cancer Center of the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China.,Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China
| | - Zhong Lin
- Department of Thoracic Oncology, The Cancer Center of the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China.,Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China
| | - Yin-Yan Mao
- Department of Thoracic Oncology, The Cancer Center of the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China.,Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China
| | - Xiao-Lu Xu
- Department of Thoracic Oncology, The Cancer Center of the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China.,Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China
| | - You-Li Luo
- Department of Interventional Oncology, The Cancer Center of the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China
| | - Li Zhang
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, People's Republic of China
| | - Pei-Jian Peng
- Department of Thoracic Oncology, The Cancer Center of the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China.,Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, People's Republic of China
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7
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Cellular-based immunotherapy in Epstein-Barr virus induced nasopharyngeal cancer. Oral Oncol 2018; 84:61-70. [DOI: 10.1016/j.oraloncology.2018.07.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 07/06/2018] [Accepted: 07/18/2018] [Indexed: 12/27/2022]
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8
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Yi M, Cai J, Li J, Chen S, Zeng Z, Peng Q, Ban Y, Zhou Y, Li X, Xiong W, Li G, Xiang B. Rediscovery of NF-κB signaling in nasopharyngeal carcinoma: How genetic defects of NF-κB pathway interplay with EBV in driving oncogenesis? J Cell Physiol 2018; 233:5537-5549. [PMID: 29266238 DOI: 10.1002/jcp.26410] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 12/18/2017] [Indexed: 12/13/2022]
Abstract
Nasopharyngeal carcinoma (NPC) is a unique EBV-associated subtype of head and neck cancer, which has the highest incidence in Southern China and eastern South Asia. The interaction between genetic risk factors and environmental challenge, have been considered to contribute to the development of nasopharyngeal carcinogenesis. Constitutive activation of NF-κB signaling has been seen in NPC tissues and is associated with unfavorable prognosis. Recently, several whole exome sequencing study consistently revealed that high frequency mutations of NF-κB pathway negative regulators is common in nasopharyngeal carcinoma, which reinforce the importance of NF-κB driving oncogenesis. This review focuses on the current state of research in role of NF-κB in NPC carcinogenesis. We summarized the newly identified loss of function (LOF) mutations on NF-κB negative regulators leading to it's activation bypass LMP-1 stimulation. We discussed the critical role of NF-κB activation in immortalization and transformation of nasopharygeal epithelium. We also depicted how NF-κB signaling mediated chronic inflammation contribute to persistent EBV infection, immune evasion of EBV infected cells, metabolic reprogramming, and cancer stem cells (CSCs) formation in NPC. Lastly, we discussed the clinical resonance of targeting NF-κB for NPC precise therapy.
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Affiliation(s)
- Mei Yi
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Department of Dermatology, Xiangya Hospital of Central South University, Changsha, China
| | - Jing Cai
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Junjun Li
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Shengnan Chen
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Zhaoyang Zeng
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Qian Peng
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Yuanyuan Ban
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Ying Zhou
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Xiaoling Li
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Wei Xiong
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Guiyuan Li
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
| | - Bo Xiang
- Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School, The Central South University, Changsha, Hunan, China.,Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, China
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9
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Feng Z, Bethmann D, Kappler M, Ballesteros-Merino C, Eckert A, Bell RB, Cheng A, Bui T, Leidner R, Urba WJ, Johnson K, Hoyt C, Bifulco CB, Bukur J, Wickenhauser C, Seliger B, Fox BA. Multiparametric immune profiling in HPV- oral squamous cell cancer. JCI Insight 2017; 2:93652. [PMID: 28724788 DOI: 10.1172/jci.insight.93652] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 06/06/2017] [Indexed: 12/21/2022] Open
Abstract
Evaluation of T lymphocyte frequency provides prognostic information for patients with oral squamous cell cancer (OSCC). However, the effect of simultaneously evaluating T cell frequency and assessing suppressive elements and defects in antigen-processing machinery (APM) has not been clarified. Simultaneous characterization of CD3+, CD8+, FoxP3+, CD163+, and PD-L1+ cells using multispectral imaging was performed on sections from 119 patients with HPV- OSCC. Expression of β2-microglobulin, MHC class I heavy chain, and large multifunctional peptidase 10 was quantified, and all data were correlated with patient outcome. We found that, consistent with previous reports, high numbers of CD8+ T cells at the invasive margin correlated significantly with prolonged overall survival (OS), while the number of FoxP3+ or PD-L1+ cells did not. Compiling the number of FoxP3+ or PD-L1+ cells within 30 μm of CD8+ T cells identified a significant association with a high number of suppressive elements close to CD8+ T cells and reduced OS. Integrating this information into a cumulative suppression index (CSI) increased correlation with OS. Incorporating tumor expression levels of APM components with CSI further improved prognostic power. This multiparametric immune profiling may be useful for stratifying patients with OSCC for clinical trials.
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Affiliation(s)
- Zipei Feng
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Portland, Oregon, USA.,Department of Cancer Biology, Oregon Health & Science University, Portland, Oregon, USA
| | - Daniel Bethmann
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Portland, Oregon, USA.,Institute of Pathology and
| | - Matthias Kappler
- Department of Oral and Maxillofacial Plastic Surgery, Martin Luther University Halle-Wittenberg, Halle, Germany
| | | | - Alexander Eckert
- Department of Oral and Maxillofacial Plastic Surgery, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - R Bryan Bell
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Portland, Oregon, USA.,Providence Oral, Head and Neck Cancer Program and Clinic, Providence Cancer Center, Portland, Oregon, USA
| | - Allen Cheng
- Providence Oral, Head and Neck Cancer Program and Clinic, Providence Cancer Center, Portland, Oregon, USA
| | - Tuan Bui
- Providence Oral, Head and Neck Cancer Program and Clinic, Providence Cancer Center, Portland, Oregon, USA
| | - Rom Leidner
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Portland, Oregon, USA.,Providence Oral, Head and Neck Cancer Program and Clinic, Providence Cancer Center, Portland, Oregon, USA
| | - Walter J Urba
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Portland, Oregon, USA
| | | | | | - Carlo B Bifulco
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Portland, Oregon, USA.,Department of Pathology, Providence Cancer Center, Portland, Oregon, USA
| | - Juergen Bukur
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Halle, Germany
| | | | - Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Bernard A Fox
- Robert W. Franz Cancer Research Center, Earle A. Chiles Research Institute, Portland, Oregon, USA.,Department of Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, Oregon, USA
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10
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Lo AKF, Dawson CW, Young LS, Lo KW. The role of metabolic reprogramming in γ-herpesvirus-associated oncogenesis. Int J Cancer 2017; 141:1512-1521. [PMID: 28542909 DOI: 10.1002/ijc.30795] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 05/01/2017] [Accepted: 05/10/2017] [Indexed: 12/26/2022]
Abstract
The γ-herpesviruses, EBV and KSHV, are closely associated with a number of human cancers. While the signal transduction pathways exploited by γ-herpesviruses to promote cell growth, survival and transformation have been reported, recent studies have uncovered the impact of γ-herpesvirus infection on host cell metabolism. Here, we review the mechanisms used by γ-herpesviruses to induce metabolic reprogramming in host cells, focusing on their ability to modulate the activity of metabolic regulators and manipulate metabolic pathways. While γ-herpesviruses alter metabolic phenotypes as a means to support viral infection and long-term persistence, this modulation can inadvertently contribute to cancer development. Strategies that target deregulated metabolic phenotypes induced by γ-herpesviruses provide new opportunities for therapeutic intervention.
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Affiliation(s)
- Angela Kwok-Fung Lo
- Department of Anatomical and Cellular Pathology, State Key Laboratory in Oncology in South China and Li Ka Shing Institute of Health Science, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Christopher W Dawson
- Institutite of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, United Kingdom
| | - Lawrence S Young
- Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Kwok-Wai Lo
- Department of Anatomical and Cellular Pathology, State Key Laboratory in Oncology in South China and Li Ka Shing Institute of Health Science, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
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11
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Li X, Bhaduri-McIntosh S. A Central Role for STAT3 in Gammaherpesvirus-Life Cycle and -Diseases. Front Microbiol 2016; 7:1052. [PMID: 27458446 PMCID: PMC4937026 DOI: 10.3389/fmicb.2016.01052] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 06/23/2016] [Indexed: 12/14/2022] Open
Abstract
Having co-evolved with humans, herpesviruses have adapted to exploit the host molecular machinery to ensure viral persistence. The cellular protein Signal Transducer and Activator of Transcription 3 (STAT3) is a leading example. STAT3 is a prominent transcription factor that functions in a variety of physiologic processes including embryonic development, inflammation, immunity, and wound healing. Generally activated via growth factor and cytokine signaling, STAT3 can transcriptionally drive oncoproteins, pro-survival and pro-proliferative proteins as well as angiogenic factors, thereby contributing to cancer. As in most non-viral cancers, STAT3 is constitutively active in EBV-related B and epithelial cell cancers and in animal models of KSHV-cancers. Again, similar to non-viral cancers, STAT3 contributes to gammaherpesvirus (EBV and KSHV)-mediated cancers by driving cell proliferation, invasion and angiogenesis. Being herpesviruses, EBV and KSHV establish latency in humans with episodic lytic activation. Importantly, both viruses activate STAT3 almost immediately upon infection of primary cells. In the setting of infection of primary B cells by EBV, this rapidly activated STAT3 plays a key role in suppressing the DNA damage response (DDR) to EBV-oncogene triggered replication stress, thereby facilitating B cell proliferation and ultimately establishment of latency. STAT3 also contributes to maintenance of latency by curbing lytic activation of EBV and KSHV in latent cells that express high levels of STAT3. In this way, gammaherpesviruses exploit STAT3 to overcome cellular anti-proliferative and anti-lytic barriers to promote viral persistence. These investigations into gammaherpesviruses and STAT3 have simultaneously revealed a novel function for STAT3 in suppression of the DDR, a process fundamental to physiologic cell proliferation as well as development of cancer.
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Affiliation(s)
- Xiaofan Li
- Pediatric Infectious Diseases, Department of Pediatrics, Stony Brook University School of Medicine Stony Brook, NY, USA
| | - Sumita Bhaduri-McIntosh
- Pediatric Infectious Diseases, Department of Pediatrics, Stony Brook University School of MedicineStony Brook, NY, USA; Department of Molecular Genetics and Microbiology, Stony Brook University School of MedicineStony Brook, NY, USA
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12
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Bedognetti D, Hendrickx W, Ceccarelli M, Miller LD, Seliger B. Disentangling the relationship between tumor genetic programs and immune responsiveness. Curr Opin Immunol 2016; 39:150-8. [PMID: 26967649 DOI: 10.1016/j.coi.2016.02.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 02/03/2016] [Accepted: 02/04/2016] [Indexed: 12/13/2022]
Abstract
Correlative studies in humans have demonstrated that an active immune microenvironment characterized by the presence of a T-helper 1 immune response typifies a tumor phenotype associated with better outcome and increased responsiveness to immune manipulation. This phenotype also signifies the counter activation of immune-regulatory mechanisms. Variables modulating the development of an effective anti-tumor immune response are increasingly scrutinized as potential therapeutic targets. Genetic alterations of cancer cells that functionally influence intratumoral immune response include mutational load, specific mutations of genes involved in oncogenic pathways and copy number aberrations involving chemokine and cytokine genes. Inhibiting oncogenic pathways that prevent the development of the immune-favorable cancer phenotype may complement modern immunotherapeutic approaches.
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Affiliation(s)
- Davide Bedognetti
- Tumor Biology, Immunology and Therapy Section, Division of Translational Medicine, Research Branch, Sidra Medical and Research Center, Doha, Qatar.
| | - Wouter Hendrickx
- Tumor Biology, Immunology and Therapy Section, Division of Translational Medicine, Research Branch, Sidra Medical and Research Center, Doha, Qatar
| | - Michele Ceccarelli
- Qatar Computing Research Institute, Hamad Bin Khalifa University, Doha, Qatar
| | - Lance D Miller
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Halle, Germany
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Lo AKF, Dawson CW, Young LS, Ko CW, Hau PM, Lo KW. Activation of the FGFR1 signalling pathway by the Epstein-Barr virus-encoded LMP1 promotes aerobic glycolysis and transformation of human nasopharyngeal epithelial cells. J Pathol 2015; 237:238-48. [PMID: 26096068 DOI: 10.1002/path.4575] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 06/02/2015] [Accepted: 06/12/2015] [Indexed: 12/22/2022]
Abstract
Non-keratinizing nasopharyngeal carcinoma (NPC) is closely associated with Epstein-Barr virus (EBV) infection. The EBV-encoded latent membrane protein 1 (LMP1) is believed to play an important role in NPC pathogenesis by virtue of its ability to activate multiple cell signalling pathways which collectively promote cell proliferation, transformation, angiogenesis, and invasiveness, as well as modulation of energy metabolism. In this study, we report that LMP1 increases cellular uptake of glucose and glutamine, enhances LDHA activity and lactate production, but reduces pyruvate kinase activity and pyruvate concentrations. LMP1 also increases the phosphorylation of PKM2, LDHA, and FGFR1, as well as the expression of PDHK1, FGFR1, c-Myc, and HIF-1α, regardless of oxygen availability. Collectively, these findings suggest that LMP1 promotes aerobic glycolysis. With respect to FGFR1 signalling, LMP1 not only increases FGFR1 expression, but also up-regulates FGF2, leading to constitutive activation of the FGFR1 signalling pathway. Furthermore, two inhibitors of FGFR1 (PD161570 and SU5402) attenuate LMP1-mediated aerobic glycolysis, cellular transformation (proliferation and anchorage-independent growth), cell migration, and invasion in nasopharyngeal epithelial cells, identifying FGFR1 signalling as a key pathway in LMP1-mediated growth transformation. Immunohistochemical staining revealed that high levels of phosphorylated FGFR1 are common in primary NPC specimens and that this correlated with the expression of LMP1. In addition, FGFR1 inhibitors suppress cell proliferation and anchorage-independent growth of NPC cells. Our current findings demonstrate that LMP1-mediated FGFR1 activation contributes to aerobic glycolysis and transformation of epithelial cells, thereby implicating FGF2/FGFR1 signalling activation in the EBV-driven pathogenesis of NPC.
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Affiliation(s)
- Angela Kwok-Fung Lo
- Department of Anatomical and Cellular Pathology, State Key Laboratory in Oncology in South China and Li Ka Shing Institute of Health Science, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong.,Cancer Research UK Cancer Centre, School of Cancer Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, UK
| | - Christopher W Dawson
- Cancer Research UK Cancer Centre, School of Cancer Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, UK
| | | | - Chuen-Wai Ko
- Department of Anatomical and Cellular Pathology, State Key Laboratory in Oncology in South China and Li Ka Shing Institute of Health Science, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Pok-Man Hau
- Department of Anatomical and Cellular Pathology, State Key Laboratory in Oncology in South China and Li Ka Shing Institute of Health Science, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Kwok-Wai Lo
- Department of Anatomical and Cellular Pathology, State Key Laboratory in Oncology in South China and Li Ka Shing Institute of Health Science, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
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Shin DY, Kim A, Kang HJ, Park S, Kim DW, Lee SS. Histone deacetylase inhibitor romidepsin induces efficient tumor cell lysis via selective down-regulation of LMP1 and c-myc expression in EBV-positive diffuse large B-cell lymphoma. Cancer Lett 2015; 364:89-97. [DOI: 10.1016/j.canlet.2015.03.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 03/11/2015] [Accepted: 03/11/2015] [Indexed: 12/12/2022]
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15
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Shen Y, Zhang S, Sun R, Wu T, Qian J. Understanding the interplay between host immunity and Epstein-Barr virus in NPC patients. Emerg Microbes Infect 2015; 4:e20. [PMID: 26038769 PMCID: PMC4395660 DOI: 10.1038/emi.2015.20] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 12/22/2014] [Accepted: 02/23/2015] [Indexed: 12/23/2022]
Abstract
Epstein-Barr virus (EBV) has been used as a paradigm for studying host-virus interactions, not only because of its importance as a human oncogenic virus associated with several malignancies including nasopharyngeal carcinoma (NPC) but also owing to its sophisticated strategies to subvert the host antiviral responses. An understanding of the interplay between EBV and NPC is critical for the development of EBV-targeted immunotherapy. Here, we summarize the current knowledge regarding the host immune responses and EBV immune evasion mechanisms in the context of NPC.
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Affiliation(s)
- Yong Shen
- Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Cancer Institute, Zhejiang University School of Medicine , Hangzhou 310009, Zhejiang Province, China ; ZJU-UCLA Joint Center for Medical Education and Research, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine , Hangzhou 310058, Zhejiang Province, China
| | - Suzhan Zhang
- Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Cancer Institute, Zhejiang University School of Medicine , Hangzhou 310009, Zhejiang Province, China ; ZJU-UCLA Joint Center for Medical Education and Research, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine , Hangzhou 310058, Zhejiang Province, China
| | - Ren Sun
- Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Cancer Institute, Zhejiang University School of Medicine , Hangzhou 310009, Zhejiang Province, China ; ZJU-UCLA Joint Center for Medical Education and Research, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine , Hangzhou 310058, Zhejiang Province, China ; Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California at Los Angeles , Los Angeles, California 90095, USA
| | - Tingting Wu
- Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, The Second Affiliated Hospital, Cancer Institute, Zhejiang University School of Medicine , Hangzhou 310009, Zhejiang Province, China ; ZJU-UCLA Joint Center for Medical Education and Research, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine , Hangzhou 310058, Zhejiang Province, China ; Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California at Los Angeles , Los Angeles, California 90095, USA
| | - Jing Qian
- ZJU-UCLA Joint Center for Medical Education and Research, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine , Hangzhou 310058, Zhejiang Province, China ; Research Center of Infection and Immunity, Zhejiang University School of Medicine , Hangzhou 310058, Zhejiang Province, China
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Zhao Y, Pang TY, Wang Y, Wang S, Kang HX, Ding WB, Yong WW, Bie YH, Cheng XG, Zeng C, Yao YH, Li Q, Hu XR. LMP1 stimulates the transcription of eIF4E to promote the proliferation, migration and invasion of human nasopharyngeal carcinoma. FEBS J 2014; 281:3004-18. [PMID: 24814906 DOI: 10.1111/febs.12838] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 04/04/2014] [Accepted: 05/07/2014] [Indexed: 01/09/2023]
Abstract
Eukaryotic translation initiation factor 4E (eIF4E) is the rate-limiting translation initiation factor for many oncogenes. Previous studies have shown eIF4E overexpression in nasopharyngeal carcinoma (NPC). We aimed to study whether viral oncogene latent membrane protein 1 (LMP1) stimulates the transcription of eIF4E to promote NPC malignancy. In NPC cell lines (CNE1 and CNE2), ectopic LMP1 significantly increased the mRNA and protein levels of eIF4E and the transcriptional activity of the eIF4E promoter in a LMP1-plasmid-transfected dose-dependent manner. As a backward experiment, knocking down of LMP1 significantly reduced eIF4E mRNA in B95-8 cells. In the high LMP1 expression condition, knocking down of c-Myc significantly reduced eIF4E mRNA in both NPC and B95-8 cells, and knocking down of eIF4E significantly inhibited the tumor proliferation, migration and invasion promoted by LMP1. The results indicated that LMP1 stimulates the transcription of eIF4E via c-Myc to promote NPC. To the best of our knowledge, this is the first evidence that LMP1 stimulates the transcription of eIF4E. This might be an important cause of the overexpression of eIF4E in NPC and be the novel mechanism by which LMP1 initiates cancer. LMP1-stimulated eIF4E initiates the translation of those oncogenes transcriptionally activated by LMP1 to amplify and pass down the carcinogenesis signals launched by LMP1.
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Affiliation(s)
- Yi Zhao
- Pathology Department, Cancer Institute of Guangdong Medical College, Dongguan, China; Microbiology and Immunology Department, Guangdong Medical College, Dongguan, China
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