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Shi F, Shang L, Zhou M, Lv C, Li Y, Luo C, Liu N, Lu J, Tang M, Luo X, Xu J, Fan J, Zhou J, Gao Q, Wu W, Jia W, Wang H, Cao Y. Epstein-Barr virus-driven metabolic alterations contribute to the viral lytic reactivation and tumor progression in nasopharyngeal carcinoma. J Med Virol 2024; 96:e29634. [PMID: 38682578 DOI: 10.1002/jmv.29634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/28/2024] [Accepted: 04/16/2024] [Indexed: 05/01/2024]
Abstract
Metabolic reprogramming induced by Epstein-Barr virus (EBV) often mirrors metabolic changes observed in cancer cells. Accumulating evidence suggests that lytic reactivation is crucial in EBV-associated oncogenesis. The aim of this study was to explore the role of metabolite changes in EBV-associated malignancies and viral life cycle control. We first revealed that EBV (LMP1) accelerates the secretion of the oncometabolite D-2HG, and serum D-2HG level is a potential diagnostic biomarker for NPC. EBV (LMP1)-driven metabolite changes disrupts the homeostasis of global DNA methylation and demethylation, which have a significantly inhibitory effect on active DNA demethylation and 5hmC content. We found that loss of 5hmC indicates a poor prognosis for NPC patients, and that 5hmC modification is a restriction factor of EBV reactivation. We confirmed a novel EBV reactivation inhibitor, α-KG, which inhibits the expression of EBV lytic genes with CpG-containing ZREs and the latent-lytic switch by enhancing 5hmC modification. Our results demonstrate a novel mechanism of which metabolite abnormality driven by EBV controls the viral lytic reactivation through epigenetic modification. This study presents a potential strategy for blocking EBV reactivation, and provides potential targets for the diagnosis and therapy of NPC.
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Affiliation(s)
- Feng Shi
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, XiangYa Hospital, Central South University, Changsha, China
- Department of Pathology, National Clinical Research Center for Geriatric Disorders/XiangYa Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis of National Health Commission, Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Li Shang
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, XiangYa Hospital, Central South University, Changsha, China
- Department of Pathology, National Clinical Research Center for Geriatric Disorders/XiangYa Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis of National Health Commission, Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Min Zhou
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, XiangYa Hospital, Central South University, Changsha, China
- Department of Pathology, National Clinical Research Center for Geriatric Disorders/XiangYa Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis of National Health Commission, Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Cong Lv
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Yueshuo Li
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, XiangYa Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis of National Health Commission, Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Cheng Luo
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, XiangYa Hospital, Central South University, Changsha, China
- Department of Pathology, National Clinical Research Center for Geriatric Disorders/XiangYa Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis of National Health Commission, Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Na Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, XiangYa Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis of National Health Commission, Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Jingchen Lu
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, XiangYa Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis of National Health Commission, Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Min Tang
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, XiangYa Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis of National Health Commission, Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Department of Radiology, National Clinical Research Center for Geriatric Disorders/XiangYa Hospital, Central South University, Changsha, China
- Molecular Imaging Research Center of Central South University, Changsha, China
| | - Xiangjian Luo
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, XiangYa Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis of National Health Commission, Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Department of Radiology, National Clinical Research Center for Geriatric Disorders/XiangYa Hospital, Central South University, Changsha, China
- Molecular Imaging Research Center of Central South University, Changsha, China
| | - Jing Xu
- Department of Otolaryngology Head and Neck Surgery, National Clinical Research Center for Geriatric Disorders/XiangYa Hospital, Central South University, Changsha, China
| | - Jia Fan
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Zhongshan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Jian Zhou
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Zhongshan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Qiang Gao
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Zhongshan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Weizhong Wu
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Zhongshan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Weihua Jia
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Ya Cao
- Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, XiangYa Hospital, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis of National Health Commission, Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Department of Radiology, National Clinical Research Center for Geriatric Disorders/XiangYa Hospital, Central South University, Changsha, China
- Molecular Imaging Research Center of Central South University, Changsha, China
- Research Center for Technologies of Nucleic Acid-Based Diagnostics and Therapeutics Hunan Province, Changsha, China
- National Joint Engineering Research Center for Genetic Diagnostics of Infectious Diseases and Cancer, Changsha, China
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Dai J, Zhang B, Su Y, Pan Y, Ye Z, Cai R, Qin G, Kong X, Mo Y, Zhang R, Liu Z, Xie Y, Ruan X, Jiang W. Induction Chemotherapy Followed by Radiotherapy vs Chemoradiotherapy in Nasopharyngeal Carcinoma: A Randomized Clinical Trial. JAMA Oncol 2024; 10:456-463. [PMID: 38329737 PMCID: PMC10853870 DOI: 10.1001/jamaoncol.2023.6552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/23/2023] [Indexed: 02/09/2024]
Abstract
Importance Induction chemotherapy plus concurrent chemoradiotherapy is recommended for locoregionally advanced nasopharyngeal carcinoma but is associated with higher rates of acute toxic effects and low compliance. Evidence on de-escalating treatment intensity after induction chemotherapy is limited. Objective To assess if radiotherapy was noninferior to chemoradiotherapy after induction chemotherapy for locoregionally advanced nasopharyngeal carcinoma. Design, Setting, and Participants From April 2015 to March 2018, a multicenter, open-label, randomized, noninferiority, phase 3 trial was conducted at 5 Chinese hospitals. A total of 383 patients aged 18 to 70 years with an untreated histologically confirmed nonkeratinizing tumor, Karnofsky performance status score not worse than 70, proper organ function, and stage III to IVB nasopharyngeal cancer were enrolled. Data were analyzed from April 2023 to June 2023. Interventions Patients were assigned randomly. Both groups received 3 cycles of induction chemotherapy consisting of intravenous administration (on day 1) of cisplatin at 60 mg/m2 and docetaxel at 60 mg/m2 and continuous intravenous infusion (from day 1 to day 5) of daily fluorouracil (600 mg/m2), repeated every 21 days. Subsequently, the patients received radiotherapy alone (induction chemotherapy in combination with radiotherapy [IC-RT] group) or concomitant cisplatin (30 mg/m2/week) with radiotherapy for 6 to 7 weeks (induction chemotherapy combined with chemoradiotherapy [IC-CCRT] group). Main Outcomes and Measures The primary end point was 3-year progression-free survival (time from the initiation of therapy until the first indication of disease progression or death), with a noninferiority margin of 10%. The secondary end points included overall survival, locoregional failure-free survival, distant metastasis-free survival, response rate, and toxic effects. Results A total of 383 patients (median [range] age, 48 [19-70] years; 100 women [26%]). Median follow-up time was 76 months (IQR, 70-89 months). The 3-year progression-free survival was 76.2% and 76.8% in the IC-RT (n = 193) and IC-CCRT groups (n = 190), respectively, in the intention-to-treat population, showing a difference of 0.6% (95% CI, -7.9% to 9.1%; P = .01 for noninferiority). Identical outcomes were reported in the per-protocol population. The incidence of grade 3 to 4 short-term toxic effects in the IC-RT group was less than the IC-CCRT group. No differences were observed in late toxic effects. Conclusions and Relevance The results of this randomized clinical trial suggest that after induction chemotherapy for locoregionally advanced nasopharyngeal carcinoma, radiotherapy alone was noninferior to chemoradiotherapy in terms of 3-year progression-free survival. Trial Registration ClinicalTrials.gov Identifier: NCT02434614.
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Affiliation(s)
- Jinxuan Dai
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Bin Zhang
- Department of Radiation Oncology, Wuzhou Red Cross Hospital, Wuzhou, China
| | - Yixin Su
- Department of Radiation Oncology, Lingshan People’s Hospital, Lingshan, China
| | - Yufei Pan
- Department of Radiation Oncology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Zhenkai Ye
- Department of Radiation Oncology, Mizhu Hospital of Guangxi Zhuang Autonomous Region, Affiliated Minzu Hospital of Guangxi Medical University, Nanning, China
| | - Rui Cai
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Guanjie Qin
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Xiangyun Kong
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Yunyan Mo
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Rongjun Zhang
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Zhengchun Liu
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Yuan Xie
- Department of Radiation Oncology, Wuzhou Red Cross Hospital, Wuzhou, China
| | - Xiaolan Ruan
- Department of Radiation Oncology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Wei Jiang
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
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Khongwirotphan S, Oonsiri S, Kitpanit S, Prayongrat A, Kannarunimit D, Chakkabat C, Lertbutsayanukul C, Sriswasdi S, Rakvongthai Y. Multimodality radiomics for tumor prognosis in nasopharyngeal carcinoma. PLoS One 2024; 19:e0298111. [PMID: 38346058 PMCID: PMC10861073 DOI: 10.1371/journal.pone.0298111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 01/13/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND The prognosis of nasopharyngeal carcinoma (NPC) is challenging due to late-stage identification and frequently undetectable Epstein-Barr virus (EBV) DNA. Incorporating radiomic features, which quantify tumor characteristics from imaging, may enhance prognosis assessment. PURPOSE To investigate the predictive power of radiomic features on overall survival (OS), progression-free survival (PFS), and distant metastasis-free survival (DMFS) in NPC. MATERIALS AND METHODS A retrospective analysis of 183 NPC patients treated with chemoradiotherapy from 2010 to 2019 was conducted. All patients were followed for at least three years. The pretreatment CT images with contrast medium, MR images (T1W and T2W), as well as gross tumor volume (GTV) contours, were used to extract radiomic features using PyRadiomics v.2.0. Robust and efficient radiomic features were chosen using the intraclass correlation test and univariate Cox proportional hazard regression analysis. They were then combined with clinical data including age, gender, tumor stage, and EBV DNA level for prognostic evaluation using Cox proportional hazard regression models with recursive feature elimination (RFE) and were optimized using 20 repetitions of a five-fold cross-validation scheme. RESULTS Integrating radiomics with clinical data significantly enhanced the predictive power, yielding a C-index of 0.788 ± 0.066 to 0.848 ± 0.079 for the combined model versus 0.745 ± 0.082 to 0.766 ± 0.083 for clinical data alone (p<0.05). Multimodality radiomics combined with clinical data offered the highest performance. Despite the absence of EBV DNA, radiomics integration significantly improved survival predictions (C-index ranging from 0.770 ± 0.070 to 0.831 ± 0.083 in combined model versus 0.727 ± 0.084 to 0.734 ± 0.088 in clinical model, p<0.05). CONCLUSIONS The combination of multimodality radiomic features from CT and MR images could offer superior predictive performance for OS, PFS, and DMFS compared to relying on conventional clinical data alone.
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Affiliation(s)
- Sararas Khongwirotphan
- Department of Radiological Technology and Medical Physics, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
- Chulalongkorn University Biomedical Imaging Group, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sornjarod Oonsiri
- Division of Radiation Oncology, Department of Radiology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Sarin Kitpanit
- Division of Radiation Oncology, Department of Radiology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Anussara Prayongrat
- Division of Radiation Oncology, Department of Radiology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Danita Kannarunimit
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Chakkapong Chakkabat
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Chawalit Lertbutsayanukul
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sira Sriswasdi
- Center for Artificial Intelligence in Medicine, Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Computational Molecular Biology, Chulalongkorn University, Bangkok, Thailand
| | - Yothin Rakvongthai
- Chulalongkorn University Biomedical Imaging Group, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Division of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Wu ZC, Lin KN, Li XQ, Ye X, Chen H, Tao J, Zhou HN, Chen WJ, Lin DF, Xie SH, Cao SM. Development and analytical validation of a novel nasopharynx swab-based Epstein-Barr virus C promoter methylation quantitative assay for nasopharyngeal carcinoma detection. Clin Chem Lab Med 2024; 62:187-198. [PMID: 37531579 DOI: 10.1515/cclm-2023-0510] [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: 01/16/2023] [Accepted: 07/11/2023] [Indexed: 08/04/2023]
Abstract
OBJECTIVES Epstein-Barr virus (EBV) C promoter (Cp) hypermethylation, a crucial factor for EBV latent infection of nasopharyngeal epithelial cells, has been recognized as a promising biomarker for nasopharyngeal carcinoma (NPC) detection. In this study, we develop a novel EBV Cp methylation quantification (E-CpMQ) assay and evaluate its diagnostic performance for NPC detection. METHODS A novel qPCR assay for simultaneous quantification of methylated- and unmethylated EBV Cp was developed by the combinational modification of MethyLight and QASM, with an innovative calibrator to improve the detection accuracy and consistency. The NP swab samples and synthetic standards were used for the analytical validation of the E-CpMQ. The diagnostic efficacy of the developed E-CpMQ assay was validated in 137 NPC patients and 137 non-NPC controls. RESULTS The E-CpMQ assay can detect the EBV Cp methylation ratio in one reaction system under 10 copies with 100 % recognition specificity, which is highly correlated to pyrosequencing with a correlation coefficient over 0.99. The calibrated E-CpMQ assay reduces the coefficient of variation by an average of 55.5 % with a total variance of less than 0.06 units standard deviation (SD). Linear methylation ratio detection range from 4.76 to 99.01 %. The sensitivity and specificity of the E-CpMQ respectively are 96.4 % (95 % CI: 91.7-98.8 %), 89.8 % (95 % CI: 83.5-94.3 %). CONCLUSIONS The developed E-CpMQ assay with a calibrator enables accurate and reproducible EBV Cp methylation ratio quantification and offers a sensitive, specific, cost-effective method for NPC early detection.
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Affiliation(s)
- Zhi-Cong Wu
- Department of Cancer Prevention, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Ke-Na Lin
- School of Public Health, Guangdong Medical University, Dongguan, Guangdong, P.R. China
| | - Xue-Qi Li
- Department of Cancer Prevention, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- School of Public Health, Sun Yat-sen University, Guangzhou, P.R. China
| | - Xin Ye
- Department of Cancer Prevention, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- School of Public Health, Sun Yat-sen University, Guangzhou, P.R. China
| | - Hua Chen
- Department of Cancer Prevention, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Jun Tao
- School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, P.R. China
| | - Hang-Ning Zhou
- Department of Cancer Prevention, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Wen-Jie Chen
- Department of Cancer Prevention, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Dong-Feng Lin
- Department of Cancer Prevention, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Shang-Hang Xie
- Department of Cancer Prevention, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Su-Mei Cao
- Department of Cancer Prevention, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
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Huang X, Zhang M, Zhang Z. The Role of LMP1 in Epstein-Barr Virus-associated Gastric Cancer. Curr Cancer Drug Targets 2024; 24:127-141. [PMID: 37183458 DOI: 10.2174/1568009623666230512153741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 03/29/2023] [Accepted: 04/06/2023] [Indexed: 05/16/2023]
Abstract
EBV promotes many cancers such as lymphoma, nasopharyngeal carcinoma, and gastric; Latent Membrane Protein 1 (LMP1) is considered to be a major oncogenic protein encoded by Epstein- Barr virus (EBV). LMP1 functions as a carcinogen in lymphoma and nasopharyngeal carcinoma, and LMP1 may also promote gastric cancer. The expression level of LMP1 in host cells is a key determinant in tumorigenesis and maintenance of virus specificity. By promoting cell immortalization and cell transformation, promoting cell proliferation, affecting immunity, and regulating cell apoptosis, LMP1 plays a crucial tumorigenic role in epithelial cancers. However, very little is currently known about LMP1 in Epstein-Barr virus-associated gastric cancer (EBVaGC); the main reason is that the expression level of LMP1 in EBVaGC is comparatively lower than other EBV-encoded proteins, such as The Latent Membrane Protein 2A (LMP2A), Epstein-Barr nuclear antigen 1 (EBNA1) and BamHI-A rightward frame 1 (BARF1), to date, there are few studies related to LMP1 in EBVaGC. Recent studies have demonstrated that LMP1 promotes EBVaGC by affecting The phosphatidylinositol 3-kinase- Akt (PI3K-Akt), Nuclear factor-kappa B (NF-κB), and other signaling pathways to regulate many downstream targets such as Forkhead box class O (FOXO), C-X-C-motif chemokine receptor (CXCR), COX-2 (Cyclooxygenase-2); moreover, the gene methylation induced by LMP1 in EBVaGC has become one of the characteristics that distinguish this gastric cancer (GC) from other types of gastric cancer and LMP1 also promotes the formation of the tumor microenvironment (TME) of EBVaGC in several ways. This review synthesizes previous relevant literature, aiming to highlight the latest findings on the mechanism of action of LMP1 in EBVaGC, summarize the function of LMP1 in EBVaGC, lay the theoretical foundation for subsequent new research on LMP1 in EBVaGC, and contribute to the development of novel LMP1-targeted drugs.
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Affiliation(s)
- Xinqi Huang
- Department of Clinical Medicine, Grade 20, Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China
| | - Meilan Zhang
- Cancer Research Institute of Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China
| | - Zhiwei Zhang
- Cancer Research Institute of Hengyang Medical College, University of South China, Hengyang, Hunan, 421001, China
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Awasthi P, Dwivedi M, Kumar D, Hasan S. Insights into intricacies of the Latent Membrane Protein-1 (LMP-1) in EBV-associated cancers. Life Sci 2023; 313:121261. [PMID: 36493876 DOI: 10.1016/j.lfs.2022.121261] [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: 09/29/2022] [Revised: 11/29/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Numerous lymphomas, carcinomas, and other disorders have been associated with Epstein-Barr Virus (EBV) infection. EBV's carcinogenic potential can be correlated to latent membrane protein 1 (LMP1), which is essential for fibroblast and primary lymphocyte transformation. LMP1, a transmembrane protein with constitutive activity, belongs to the tumour necrosis factor receptor (TNFR) superfamily. LMP1 performs number of role in the life cycle of EBV and the pathogenesis by interfering with, reprogramming, and influencing a vast range of host cellular activities and functions that are getting well-known but still poorly understood. LMP1, pleiotropically perturbs, reprograms and balances a wide range of various processes of cell such as extracellular vesicles, epigenetics, ubiquitin machinery, metabolism, cell proliferation and survival, and also promotes oncogenic transformation, angiogenesis, anchorage-independent cell growth, metastasis and invasion, tumour microenvironment. By the help of various experiments, it is proven that EBV-encoded LMP1 activates multiple cell signalling pathways which affect antigen presentation, cell-cell interactions, chemokine and cytokine production. Therefore, it is assumed that LMP1 may perform majorly in EBV associated malignancies. For the development of novel techniques toward targeted therapeutic applications, it is essential to have a complete understanding of the LMP1 signalling landscape in order to identify potential targets. The focus of this review is on LMP1-interacting proteins and related signalling processes. We further discuss tactics for using the LMP1 protein as a potential therapeutic for cancers caused by the EBV.
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Affiliation(s)
- Prankur Awasthi
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow 226028, India
| | - Manish Dwivedi
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow 226028, India
| | - Dhruv Kumar
- School of Health Sciences and Technology, UPES University Dehradun, Uttarakhand, India
| | - Saba Hasan
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow 226028, India.
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An Update on the Metabolic Landscape of Oncogenic Viruses. Cancers (Basel) 2022; 14:cancers14235742. [PMID: 36497226 PMCID: PMC9738352 DOI: 10.3390/cancers14235742] [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: 10/10/2022] [Revised: 11/10/2022] [Accepted: 11/17/2022] [Indexed: 11/24/2022] Open
Abstract
Viruses play an important role in cancer development as about 12% of cancer types are linked to viral infections. Viruses that induce cellular transformation are known as oncoviruses. Although the mechanisms of viral oncogenesis differ between viruses, all oncogenic viruses share the ability to establish persistent chronic infections with no obvious symptoms for years. During these prolonged infections, oncogenic viruses manipulate cell signaling pathways that control cell cycle progression, apoptosis, inflammation, and metabolism. Importantly, it seems that most oncoviruses depend on these changes for their persistence and amplification. Metabolic changes induced by oncoviruses share many common features with cancer metabolism. Indeed, viruses, like proliferating cancer cells, require increased biosynthetic precursors for virion production, need to balance cellular redox homeostasis, and need to ensure host cell survival in a given tissue microenvironment. Thus, like for cancer cells, viral replication and persistence of infected cells frequently depend on metabolic changes. Here, we draw parallels between metabolic changes observed in cancers or induced by oncoviruses, with a focus on pathways involved in the regulation of glucose, lipid, and amino acids. We describe whether and how oncoviruses depend on metabolic changes, with the perspective of targeting them for antiviral and onco-therapeutic approaches in the context of viral infections.
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Yang ZC, Hu YY, Liu LT, Guo SS, Du CC, Liang YJ, Chen QY, Mai HQ. Determining the suitability of definitive radiation therapy in patients with metastatic nasopharyngeal carcinoma based on PET/CT: a large cohort study. Eur Radiol 2022; 32:7722-7732. [PMID: 35505116 DOI: 10.1007/s00330-022-08814-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 03/25/2022] [Accepted: 04/11/2022] [Indexed: 01/03/2023]
Abstract
OBJECTIVES To determine patients with de novo metastatic nasopharyngeal carcinoma (mNPC) who would benefit from receiving definitive radiation therapy (DRT) along with their pre-existing palliative chemotherapy (PCT) by evaluating their post-PCT Deauville scores and EBV DNA. METHODS A total of 570 mNPC patients, treated with PCT or PCT+DRT, were studied. EBV DNA levels, along with post-PCT Deauville scores, were used to stratify risk based on the recursive partitioning analysis (RPA). RESULTS Significant differences were observed in the survival rates of patients with Deauville scores of 1-3 and 4-5 (2-year progression-free survival (PFS): 23.4% versus 8.5%, p < 0.001; 2-year overall survival (OS): 56.8% versus 18.8%, p < 0.001). RPA yielded three distinct groups in the increasing order of risk (Deauville scores of all RPA I-II were within the range of 1-3): (1) RPA I: EBV DNA levels at a pretreatment concentration ≤ 4000 copies/mL and undetectable post-PCT; (2) RPA II: EBV DNA levels either at a pretreatment concentration > 4000 copies/mL or at a pretreatment concentration ≤ 4000 copies/mL and detectable post-PCT; (3) RPA III: Deauville scores 4-5. While patients in RPA I and RPA II had significantly PFS rates when treated with PCT+DRT than when treated with PCT alone (RPA I: 72.7% versus 13.4%, RPA II: 37.8% versus 6.3%), those in RPA III did not experience such PFS benefits (6.5% versus 9.7%). CONCLUSION PCT+DRT might improve the survival rates in mNPC patients in the low- and mid-risk strata but not those of patients in the high-risk strata. KEY POINTS We use the Deauville scores and the concentrations of the Epstein-Barr virus (EBV) DNA to determine those patients with de novo metastatic NPC who would benefit from radiation therapy.
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Affiliation(s)
- Zhen-Chong Yang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.,Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Ying-Ying Hu
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.,Department of Nuclear Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Li-Ting Liu
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.,Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Shan-Shan Guo
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.,Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Chao-Chao Du
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.,Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yu-Jing Liang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.,Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Qiu-Yan Chen
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China. .,Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China.
| | - Hai-Qiang Mai
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China. .,Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China.
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9
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Wei W, Bai L, Yan B, Meng W, Wang H, Zhai J, Si F, Zheng C. When liquid-liquid phase separation meets viral infections. Front Immunol 2022; 13:985622. [PMID: 36016945 PMCID: PMC9395683 DOI: 10.3389/fimmu.2022.985622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 07/20/2022] [Indexed: 11/17/2022] Open
Abstract
Eukaryotic cells have both membranous and membraneless organelles. While the formation mechanism of membranous organelles is well understood, the formation mechanism of membraneless organelles remains unknown. Many biomolecules in the cytoplasm transition from the liquid phase to the agglutinated phase are known as liquid-liquid phase separation (LLPS). The biomolecular agglomerates’ physical properties enable them to function as dynamic compartments that respond to external pressures and stimuli. Scientists have gradually recognized the importance of phase separation during viral infections. LLPS provides a powerful new framework for understanding the viral life cycle from viral replication to evasion of host immune surveillance. As a result, this review focuses on the progress of LLPS research in viral infection and immune regulation to provide clues for antiviral therapeutic strategies.
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Affiliation(s)
- Wenqiang Wei
- Kaifeng Key Laboratory of Infection and Biological Safety, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Lu Bai
- Kaifeng Key Laboratory of Infection and Biological Safety, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Bing Yan
- Kaifeng Key Laboratory of Infection and Biological Safety, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Weiquan Meng
- Kaifeng Key Laboratory of Infection and Biological Safety, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Hongju Wang
- Kaifeng Key Laboratory of Infection and Biological Safety, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Jingbo Zhai
- Medical College, Inner Mongolia Minzu University, Tongliao, China
- Key Laboratory of Zoonose Prevention and Control at Universities of Inner Mongolia Autonomous Region, Tongliao, China
| | - Fusheng Si
- Institute of Animal Science and Veterinary Medicine, Shanghai Key Laboratory of Agricultural Genetics and Breeding, Shanghai Engineering Research Center of Breeding Pig, Shanghai Academy of Agricultural Sciences, Shanghai, China
- *Correspondence: Chunfu Zheng, ; Fusheng Si,
| | - Chunfu Zheng
- Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
- *Correspondence: Chunfu Zheng, ; Fusheng Si,
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10
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Liquid-liquid phase separation in tumor biology. Signal Transduct Target Ther 2022; 7:221. [PMID: 35803926 PMCID: PMC9270353 DOI: 10.1038/s41392-022-01076-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/16/2022] [Accepted: 06/21/2022] [Indexed: 12/12/2022] Open
Abstract
Liquid–liquid phase separation (LLPS) is a novel principle for explaining the precise spatial and temporal regulation in living cells. LLPS compartmentalizes proteins and nucleic acids into micron-scale, liquid-like, membraneless bodies with specific functions, which were recently termed biomolecular condensates. Biomolecular condensates are executors underlying the intracellular spatiotemporal coordination of various biological activities, including chromatin organization, genomic stability, DNA damage response and repair, transcription, and signal transduction. Dysregulation of these cellular processes is a key event in the initiation and/or evolution of cancer, and emerging evidence has linked the formation and regulation of LLPS to malignant transformations in tumor biology. In this review, we comprehensively summarize the detailed mechanisms of biomolecular condensate formation and biophysical function and review the recent major advances toward elucidating the multiple mechanisms involved in cancer cell pathology driven by aberrant LLPS. In addition, we discuss the therapeutic perspectives of LLPS in cancer research and the most recently developed drug candidates targeting LLPS modulation that can be used to combat tumorigenesis.
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11
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Targeting the gut and tumor microbiota in cancer. Nat Med 2022; 28:690-703. [PMID: 35440726 DOI: 10.1038/s41591-022-01779-2] [Citation(s) in RCA: 162] [Impact Index Per Article: 81.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/09/2022] [Indexed: 02/07/2023]
Abstract
Microorganisms within the gut and other niches may contribute to carcinogenesis, as well as shaping cancer immunosurveillance and response to immunotherapy. Our understanding of the complex relationship between different host-intrinsic microorganisms, as well as the multifaceted mechanisms by which they influence health and disease, has grown tremendously-hastening development of novel therapeutic strategies that target the microbiota to improve treatment outcomes in cancer. Accordingly, the evaluation of a patient's microbial composition and function and its subsequent targeted modulation represent key elements of future multidisciplinary and precision-medicine approaches. In this Review, we outline the current state of research toward harnessing the microbiome to better prevent and treat cancer.
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12
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Nečasová I, Stojaspal M, Motyčáková E, Brom T, Janovič T, Hofr C. Transcriptional regulators of human oncoviruses: structural and functional implications for anticancer therapy. NAR Cancer 2022; 4:zcac005. [PMID: 35252867 PMCID: PMC8892037 DOI: 10.1093/narcan/zcac005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 02/04/2022] [Accepted: 02/15/2022] [Indexed: 11/26/2022] Open
Abstract
Transcription is often the first biosynthetic event of viral infection. Viruses produce preferentially viral transcriptional regulators (vTRs) essential for expressing viral genes and regulating essential host cell proteins to enable viral genome replication. As vTRs are unique viral proteins that promote the transcription of viral nucleic acid, vTRs interact with host proteins to suppress detection and immune reactions to viral infection. Thus, vTRs are promising therapeutic targets that are sequentially and structurally distinct from host cell proteins. Here, we review vTRs of three human oncoviruses: HBx of hepatitis B virus, HBZ of human T-lymphotropic virus type 1, and Rta of Epstein–Barr virus. We present three cunningly exciting and dangerous transcription strategies that make viral infections so efficient. We use available structural and functional knowledge to critically examine the potential of vTRs as new antiviral-anticancer therapy targets. For each oncovirus, we describe (i) the strategy of viral genome transcription; (ii) vTRs’ structure and binding partners essential for transcription regulation; and (iii) advantages and challenges of vTR targeting in antiviral therapies. We discuss the implications of vTR regulation for oncogenesis and perspectives on developing novel antiviral and anticancer strategies.
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Affiliation(s)
- Ivona Nečasová
- Institute of Biophysics of the Czech Academy of Sciences, Scientific Incubator, Královopolská 135, Brno 612 65, Czech Republic
| | - Martin Stojaspal
- Institute of Biophysics of the Czech Academy of Sciences, Scientific Incubator, Královopolská 135, Brno 612 65, Czech Republic
| | - Edita Motyčáková
- Institute of Biophysics of the Czech Academy of Sciences, Scientific Incubator, Královopolská 135, Brno 612 65, Czech Republic
| | - Tomáš Brom
- LifeB, Functional Genomics and Proteomics, National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Tomáš Janovič
- LifeB, Functional Genomics and Proteomics, National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
| | - Ctirad Hofr
- Institute of Biophysics of the Czech Academy of Sciences, Scientific Incubator, Královopolská 135, Brno 612 65, Czech Republic
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13
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Yang ZC, Du CC, Liu LT, Liang YJ, Tang LQ, Chen QY, Mai HQ, Guo SS. The prognostic role of plasma Epstein–Barr virus DNA levels in the middle of intensity-modulated radiotherapy to guide cisplatin dose recommendation in concurrent chemoradiation therapy in patients with locally advanced nasopharyngeal carcinoma: A large cohort study. Adv Radiat Oncol 2022; 7:100908. [PMID: 35647403 PMCID: PMC9133362 DOI: 10.1016/j.adro.2022.100908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 01/23/2022] [Indexed: 12/08/2022] Open
Abstract
Purpose Methods and Materials Results Conclusions
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14
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Intarak S, Chongpison Y, Vimolnoch M, Oonsiri S, Kitpanit S, Prayongrat A, Kannarunimit D, Chakkabat C, Sriswasdi S, Lertbutsayanukul C, Rakvongthai Y. Tumor Prognostic Prediction of Nasopharyngeal Carcinoma Using CT-Based Radiomics in Non-Chinese Patients. Front Oncol 2022; 12:775248. [PMID: 35155228 PMCID: PMC8831248 DOI: 10.3389/fonc.2022.775248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 01/05/2022] [Indexed: 12/24/2022] Open
Abstract
PurposeWe aimed to construct predictive models for the overall survival (OS), progression-free survival (PFS), and distant metastasis-free survival (DMFS) for nasopharyngeal carcinoma (NPC) patients by using CT-based radiomics.Materials and MethodsWe collected data from 197 NPC patients. For each patient, radiomic features were extracted from the CT image acquired at pretreatment via PyRadiomics. Feature selection was performed in two steps. First, features with high inter-observer variability based on multiple tumor delineations were excluded. Then, stratified bootstrappings were performed to identify feature combinations that most frequently achieved the highest (i) area under the receiver operating characteristic curve (AUC) for predicting 3-year OS, PFS, and DMFS or (ii) Harrell’s C-index for predicting time to event. Finally, regularized logistic regression and Cox proportional hazard models with the most frequently selected feature combinations as input were tuned using cross-validation. Additionally, we examined the robustness of the constructed model to variation in tumor delineation by simulating 100 realizations of radiomic feature values to mimic features extracted from different tumor boundaries.ResultsThe combined model that used both radiomics and clinical features yielded significantly higher AUC and Harrell’s C-index than models using either feature set alone for all outcomes (p < 0.05). The AUCs and Harrell’s C-indices of the clinical-only and radiomics-only models ranged from 0.758 ± 0.091 to 0.789 ± 0.082 and from 0.747 ± 0.062 to 0.767 ± 0.074, respectively. In comparison, the combined models achieved AUC of 0.801 ± 0.075 to 0.813 ± 0.078 and Harrell’s C-indices of 0.779 ± 0.066 to 0.796 ± 0.069. The results showed that our models were robust to variation in tumor delineation with the coefficient of variation ranging from 4.8% to 6.4% and from 6.7% to 9.3% for AUC and Harrell’s C-index, respectively.ConclusionOur results demonstrated that using CT-based radiomic features together with clinical features provided superior NPC prognostic prediction than using either clinical or radiomic features alone.
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Affiliation(s)
- Sararas Intarak
- Medical Physics Program, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Chulalongkorn University Biomedical Imaging Group, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yuda Chongpison
- Biostatistics Excellence Center, Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Mananchaya Vimolnoch
- Medical Physics Program, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Division of Radiation Oncology, Department of Radiology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Sornjarod Oonsiri
- Division of Radiation Oncology, Department of Radiology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Sarin Kitpanit
- Division of Radiation Oncology, Department of Radiology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Anussara Prayongrat
- Division of Radiation Oncology, Department of Radiology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Danita Kannarunimit
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Chakkapong Chakkabat
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sira Sriswasdi
- Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Center for Artificial Intelligence in Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Chawalit Lertbutsayanukul
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yothin Rakvongthai
- Chulalongkorn University Biomedical Imaging Group, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Division of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- *Correspondence: Yothin Rakvongthai,
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15
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Vatte C, Al-Amri AM, Cyrus C, Chathoth S, Ahmad A, Alsayyah A, Al-Ali A. Epstein-Barr virus infection mediated TP53 and Bcl-2 expression in nasopharyngeal carcinoma pathogenesis. Mol Clin Oncol 2021; 15:260. [PMID: 34754447 PMCID: PMC8569298 DOI: 10.3892/mco.2021.2422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/28/2021] [Indexed: 02/07/2023] Open
Abstract
Epstein Barr virus (EBV) stimulates neoplastic transformation of nasopharyngeal epithelial cells through various molecular mechanisms, predominantly affecting inactivation of tumor-suppressor genes and activation of oncogenes. EBV infection is a major risk factor for nasopharyngeal carcinoma (NPC), yet its role in the carcinogenesis is not clear. EBV infection alters the expression of antiapoptotic proteins and tumor suppressor proteins. Therefore, this study investigated the correlation between EBV infection status with B cell lymphoma-2 (Bcl-2) and TP53 protein expression amongst laryngeal and nasopharyngeal cancer cases. This study was performed using 22 nasopharyngeal and 11 laryngeal cancer cases. EBV infection status, TP53 and Bcl-2 protein expression was studied using immunohistochemistry. The majority of the laryngeal cancer cases exhibited a poor prognosis and presented low Bcl-2 expression. A total of 22.7% cases were infected with EBV in the NPC cases. Upregulated TP53 expression was associated with EBV infection in the NPC cohort, and EBV infection was correlated with TP53 upregulation in the patients with NPC, suggesting mutual regulation between TP53 and EBV.
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Affiliation(s)
- Chittibabu Vatte
- Department of Biochemistry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 31441, Kingdom of Saudi Arabia
| | - Ali M Al-Amri
- Department of Internal Medicine, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Al-Khobar 31952, Kingdom of Saudi Arabia
| | - Cyril Cyrus
- Department of Biochemistry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 31441, Kingdom of Saudi Arabia
| | - Shahanas Chathoth
- Department of Biochemistry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 31441, Kingdom of Saudi Arabia
| | - Arafat Ahmad
- Department of Biochemistry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 31441, Kingdom of Saudi Arabia
| | - Ahmed Alsayyah
- Department of Pathology, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Al-Khobar 31952, Kingdom of Saudi Arabia
| | - Amein Al-Ali
- Department of Biochemistry, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 31441, Kingdom of Saudi Arabia
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16
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Use of relevancy and complementary information for discriminatory gene selection from high-dimensional gene expression data. PLoS One 2021; 16:e0230164. [PMID: 34613963 PMCID: PMC8494339 DOI: 10.1371/journal.pone.0230164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 09/21/2021] [Indexed: 12/22/2022] Open
Abstract
With the advent of high-throughput technologies, life sciences are generating a huge amount of varied biomolecular data. Global gene expression profiles provide a snapshot of all the genes that are transcribed in a cell or in a tissue under a particular condition. The high-dimensionality of such gene expression data (i.e., very large number of features/genes analyzed with relatively much less number of samples) makes it difficult to identify the key genes (biomarkers) that are truly attributing to a particular phenotype or condition, (such as cancer), de novo. For identifying the key genes from gene expression data, among the existing literature, mutual information (MI) is one of the most successful criteria. However, the correction of MI for finite sample is not taken into account in this regard. It is also important to incorporate dynamic discretization of genes for more relevant gene selection, although this is not considered in the available methods. Besides, it is usually suggested in current studies to remove redundant genes which is particularly inappropriate for biological data, as a group of genes may connect to each other for downstreaming proteins. Thus, despite being redundant, it is needed to add the genes which provide additional useful information for the disease. Addressing these issues, we proposed Mutual information based Gene Selection method (MGS) for selecting informative genes. Moreover, to rank these selected genes, we extended MGS and propose two ranking methods on the selected genes, such as MGSf—based on frequency and MGSrf—based on Random Forest. The proposed method not only obtained better classification rates on gene expression datasets derived from different gene expression studies compared to recently reported methods but also detected the key genes relevant to pathways with a causal relationship to the disease, which indicate that it will also able to find the responsible genes for an unknown disease data.
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Zhang SQ, Pan SM, Liang SX, Han YS, Chen HB, Li JC. Research status and prospects of biomarkers for nasopharyngeal carcinoma in the era of high‑throughput omics (Review). Int J Oncol 2021; 58:9. [PMID: 33649830 PMCID: PMC7910009 DOI: 10.3892/ijo.2021.5188] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 01/21/2021] [Indexed: 02/07/2023] Open
Abstract
As a malignant tumor type, nasopharyngeal carcinoma (NPC) is characterized by distinct geographical, ethnic and genetic differences; presenting a major threat to human health in many countries, especially in Southern China. At present, no accurate and effective methods are available for the early diagnosis, efficacious evaluation or prognosis prediction for NPC. As such, a large number of patients have locoregionally advanced NPC at the time of initial diagnosis. Many patients show toxic reactions to overtreatment and have risks of cancer recurrence and distant metastasis owing to insufficient treatment. To solve these clinical problems, high‑throughput '‑omics' technologies are being used to screen and identify specific molecular biomarkers for NPC. Because of the lack of comprehensive descriptions regarding NPC biomarkers, the present study summarized the research progress that has been made in recent years to discover NPC biomarkers, highlighting the existing problems that require exploration. In view of the lack of authoritative reports at present, study design factors that affect the screening of biomarkers are also discussed here and prospects for future research are proposed to provide references for follow‑up studies of NPC biomarkers.
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Affiliation(s)
- Shan-Qiang Zhang
- Medical Research Center, Yue Bei People's Hospital, Shantou University Medical College, Wujiang, Shaoguan, Guangdong 512025, P.R. China
| | - Su-Ming Pan
- Department of Radiotherapy, Yue Bei People's Hospital, Shantou University Medical College, Wujiang, Shaoguan, Guangdong 512025, P.R. China
| | - Si-Xian Liang
- Department of Radiotherapy, Yue Bei People's Hospital, Shantou University Medical College, Wujiang, Shaoguan, Guangdong 512025, P.R. China
| | - Yu-Shuai Han
- Institute of Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, P.R. China
| | - Hai-Bin Chen
- Department of Histology and Embryology, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Ji-Cheng Li
- Medical Research Center, Yue Bei People's Hospital, Shantou University Medical College, Wujiang, Shaoguan, Guangdong 512025, P.R. China
- Institute of Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, P.R. China
- Correspondence to: Professor Ji-Cheng Li, Medical Research Center, Yue Bei People's Hospital, Shantou University Medical College, 133 Huimin South Road, Wujiang, Shaoguan, Guangdong 512025, P.R. China, E-mail:
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18
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Cheng H, Zhou L, Long Y, Xiang J, Chen L. MACC1 Is Associated With Epithelial-Mesenchymal Transition and Can Predict Poor Prognosis in Nasopharyngeal Carcinoma. Front Oncol 2021; 11:644120. [PMID: 33854976 PMCID: PMC8039464 DOI: 10.3389/fonc.2021.644120] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 03/11/2021] [Indexed: 12/28/2022] Open
Abstract
Background Given the reported correlation between the oncogene metastasis-associated in colon cancer 1 (MACC1) and nasopharyngeal carcinoma (NPC), as well as between MACC1 and epithelial–mesenchymal transition (EMT), we speculated that EMT is a likely causative link between MACC1 expression and poor NPC prognosis. Thus, we aim to clarify the relationship between MACC1 and EMT in NPC prognosis. Material and Methods We performed immunohistochemical examination of tissue sections from 128 NPC patients that were divided into six groups corresponding to high and low protein expression of MACC1 and two EMT-related proteins, vimentin and E-cadherin, and Kaplan–Meier (KM) survival analyses were performed. Results KM survival analysis showed that upregulation of MACC1 and vimentin and downregulation of E-cadherin were significantly associated with reduced survival in NPC. Short hairpin RNA (shRNA) interference and immunoblotting in the NPC cell line HNE-1 led to increased E-cadherin but decreased vimentin levels. MACC1 overexpression was significantly correlated with poor 5-year overall survival, metastasis-free survival, and disease-free survival (P<0.05) but not with poor relapse-free survival (P>0.05). Univariate analyses revealed that MACC1, E-cadherin, and vimentin levels along with T and N tumor classifications and cancer staging are significant prognostic factors of NPC (P<0.05). Conclusion Our findings showed the association between MACC1 and EMT in NPC malignancy and support the role of MACC1 as a prognostic biomarker and molecular target for NPC treatment.
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Affiliation(s)
- Hao Cheng
- Department of Radiation Oncology, Nanfang Hospital of Southern Medical University, Guangzhou, China.,Department of Nasopharyngeal Carcinoma, The First People's Hospital of Chenzhou, Southern Medical University, Chenzhou, China
| | - Linxiang Zhou
- Department of Nasopharyngeal Carcinoma, The First People's Hospital of Chenzhou, University of South China, Chenzhou, China
| | - Yalan Long
- Department of Nasopharyngeal Carcinoma, The First People's Hospital of Chenzhou, University of South China, Chenzhou, China
| | - Juanjuan Xiang
- Department of Nasopharyngeal Carcinoma, The First People's Hospital of Chenzhou, University of South China, Chenzhou, China
| | - Longhua Chen
- Department of Radiation Oncology, Nanfang Hospital of Southern Medical University, Guangzhou, China
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Li M, Chen YB, Liu F, Qu JQ, Ren LC, Chai J, Tang CE. Galectin‑3 facilitates the proliferation and migration of nasopharyngeal carcinoma cells via activation of the ERK1/2 and Akt signaling pathways, and is positively correlated with the inflammatory state of nasopharyngeal carcinoma. Mol Med Rep 2021; 23:370. [PMID: 33760180 PMCID: PMC7986014 DOI: 10.3892/mmr.2021.12009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 02/23/2021] [Indexed: 01/07/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is an epithelial carcinoma originating from the nasopharyngeal mucosal tissue and is highly prevalent in southeast Asia. Galectin-3 (gal-3) serves crucial roles in many cancers but its role in NPC remains to be elucidated. The aim of the present study was to investigate the role of gal-3 in NPC. Immunohistochemistry and ELISA were used to determine the expression level of gal-3 in patients with NPC or chronic rhinitis (CR). Gal-3 short hairpin (sh)RNA was established to knockdown gal-3 in 5–8F and 6–10B cells, allowing for the evaluation of the roles of gal-3 in proliferation, migration and apoptosis in NPC cell lines. Immunohistochemistry staining of IL-6 and IL-8 was applied to access the inflammatory state of tumor tissues, and the correlation between the inflammatory state and gal-3 was analyzed. The results demonstrated that gal-3 was upregulated in patients with NPC compared with patients with CR. Knockdown of gal-3 inhibited proliferation and migration in 5-8F and 6-10B cells, as well as promoted apoptosis in these cells. The expression levels of MMP-9 and IL-8 were also decreased in 5-8F and 6-10B cells after transfection with gal-3 shRNA. A positive correlation was identified between the expression level of gal-3 and the inflammatory state of NPC. The phosphorylation levels of ERK1/2 and Akt were downregulated after knockdown of gal-3 in 5-8F and 6-10B cells. In conclusion, the expression level of gal-3 was upregulated in patients with NPC and was positively correlated with the inflammatory state of NPC. The results suggested that gal-3 promoted the proliferation and migration of 5-8F and 6-10B cells, while inhibiting the apoptosis of these cells. Moreover, activation of ERK1/2 and Akt may be the underlying mechanism of the effects of gal-3 on NPC.
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Affiliation(s)
- Mei Li
- Institute of Medical Science Research, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Yu Bin Chen
- Department of Cardiac Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Fen Liu
- Institute of Medical Science Research, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Jia Quan Qu
- Cholestatic Liver Diseases Center and Department of Gastroenterology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Li Cheng Ren
- Department of Burn and Reconstructive Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Jin Chai
- Cholestatic Liver Diseases Center and Department of Gastroenterology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Can E Tang
- Institute of Medical Science Research, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
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20
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Asha K, Sharma-Walia N. Targeting Host Cellular Factors as a Strategy of Therapeutic Intervention for Herpesvirus Infections. Front Cell Infect Microbiol 2021; 11:603309. [PMID: 33816328 PMCID: PMC8017445 DOI: 10.3389/fcimb.2021.603309] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 01/12/2021] [Indexed: 12/13/2022] Open
Abstract
Herpesviruses utilize various host factors to establish latent infection, survival, and spread disease in the host. These factors include host cellular machinery, host proteins, gene expression, multiple transcription factors, cellular signal pathways, immune cell activation, transcription factors, cytokines, angiogenesis, invasion, and factors promoting metastasis. The knowledge and understanding of host genes, protein products, and biochemical pathways lead to discovering safe and effective antivirals to prevent viral reactivation and spread infection. Here, we focus on the contribution of pro-inflammatory, anti-inflammatory, and resolution lipid metabolites of the arachidonic acid (AA) pathway in the lifecycle of herpesvirus infections. We discuss how various herpesviruses utilize these lipid pathways to their advantage and how we target them to combat herpesvirus infection. We also summarize recent development in anti-herpesvirus therapeutics and new strategies proposed or under clinical trials. These anti-herpesvirus therapeutics include inhibitors blocking viral life cycle events, engineered anticancer agents, epigenome influencing factors, immunomodulators, and therapeutic compounds from natural extracts.
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Affiliation(s)
| | - Neelam Sharma-Walia
- H. M. Bligh Cancer Research Laboratories, Department of Microbiology and Immunology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
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21
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Gong L, Kwong DLW, Dai W, Wu P, Li S, Yan Q, Zhang Y, Zhang B, Fang X, Liu L, Luo M, Liu B, Chow LKY, Chen Q, Huang J, Lee VHF, Lam KO, Lo AWI, Chen Z, Wang Y, Lee AWM, Guan XY. Comprehensive single-cell sequencing reveals the stromal dynamics and tumor-specific characteristics in the microenvironment of nasopharyngeal carcinoma. Nat Commun 2021; 12:1540. [PMID: 33750785 PMCID: PMC7943808 DOI: 10.1038/s41467-021-21795-z] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 02/08/2021] [Indexed: 12/19/2022] Open
Abstract
The tumor microenvironment (TME) of nasopharyngeal carcinoma (NPC) harbors a heterogeneous and dynamic stromal population. A comprehensive understanding of this tumor-specific ecosystem is necessary to enhance cancer diagnosis, therapeutics, and prognosis. However, recent advances based on bulk RNA sequencing remain insufficient to construct an in-depth landscape of infiltrating stromal cells in NPC. Here we apply single-cell RNA sequencing to 66,627 cells from 14 patients, integrated with clonotype identification on T and B cells. We identify and characterize five major stromal clusters and 36 distinct subpopulations based on genetic profiling. By comparing with the infiltrating cells in the non-malignant microenvironment, we report highly representative features in the TME, including phenotypic abundance, genetic alternations, immune dynamics, clonal expansion, developmental trajectory, and molecular interactions that profoundly influence patient prognosis and therapeutic outcome. The key findings are further independently validated in two single-cell RNA sequencing cohorts and two bulk RNA-sequencing cohorts. In the present study, we reveal the correlation between NPC-specific characteristics and progression-free survival. Together, these data facilitate the understanding of the stromal landscape and immune dynamics in NPC patients and provides deeper insights into the development of prognostic biomarkers and therapeutic targets in the TME.
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Affiliation(s)
- Lanqi Gong
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Dora Lai-Wan Kwong
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Wei Dai
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Pingan Wu
- Department of Surgery, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Shanshan Li
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Qian Yan
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Yu Zhang
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Baifeng Zhang
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Xiaona Fang
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Li Liu
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- The AIDS Institute, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- State Key Laboratory of Emerging Infectious Disease, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Min Luo
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Beilei Liu
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Larry Ka-Yue Chow
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Qingyun Chen
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jinlin Huang
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Victor Ho-Fun Lee
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Ka-On Lam
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Anthony Wing-Ip Lo
- Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Zhiwei Chen
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- The AIDS Institute, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- State Key Laboratory of Emerging Infectious Disease, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Yan Wang
- Department of Pathology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Anne Wing-Mui Lee
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Xin-Yuan Guan
- Department of Clinical Oncology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China.
- Department of Clinical Oncology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou, China.
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22
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Genetic Variation in the Vascular Endothelial Growth Factor (VEGFA) Gene at rs13207351 Is Associated with Overall Survival of Patients with Head and Neck Cancer. Cancers (Basel) 2021; 13:cancers13051163. [PMID: 33800431 PMCID: PMC7962814 DOI: 10.3390/cancers13051163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/25/2021] [Accepted: 02/28/2021] [Indexed: 01/10/2023] Open
Abstract
Simple Summary Angiogenesis and apoptosis play a pivotal role in the pathogenesis and clinical course not only of nasopharyngeal cancer (NPC), but also of other subgroups of head and neck cancer (HNC), such as laryngeal cancer. Thus, the aim of this study was to investigate the clinical significance of genetic polymorphisms in four pivotal angiogenesis- and apoptosis-related genes (VEGFA, FAS, EDNRA and NBS1) in HNC patients. Thirty-four genetic variants located in the studied genes were assessed. Two of them (VEGFA rs13207351 and FAS rs2234768) were associated with overall survival for patients with laryngeal cancer and NPC, respectively, with VEGFA rs13207351 showing the most promise for its prognostic value in the subgroup of laryngeal cancer patients. This study suggests that genetic variations in angiogenesis- and apoptosis-related genes may be useful in the management of HNC patients. Abstract Head and neck cancer (HNC) is a significantly heterogeneous disease and includes malignancies arising from different anatomical sites, such as nasopharyngeal cancer (NPC) and laryngeal cancer (LC). In the current study, polymorphisms located in angiogenesis- and apoptosis-related genes (VEGFA, FAS, EDNRA and NBS1) were evaluated regarding their clinical significance in HNC patients. In total, 333 HNC patients were enrolled in this study and 34 variants located on the aforementioned genes were genotyped via Sanger sequencing. LC patients, homozygous A for VEGFA rs13207351, had shorter overall survival (OS) as opposed to homozygous G (Hazard ratio (HR) = 2.06, Wald’s p = 0.017) upon adjustment for age, disease stage, and surgery. Following the dominant model, LC patients carrying the A allele had a marginally significantly higher risk for death (HR = 1.72, p = 0.059). NPC patients heterozygous (CT) for FAS rs2234768 had a marginal but significantly higher risk of death compared to those with homozygosity for the T allele (HR = 2.22, p = 0.056). In conclusion, rs13207351 (VEGFA) and rs2234768 (FAS) polymorphisms seem to have prognostic significance in HNC, with VEGFA rs13207351 showing the most promise in this subgroup of LC patients.
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23
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Li Y, Shi F, Hu J, Xie L, Zhao L, Tang M, Luo X, Ye M, Zheng H, Zhou M, Liu N, Bode AM, Fan J, Zhou J, Gao Q, Qiu S, Wu W, Zhang X, Liao W, Cao Y. Stabilization of p18 by deubiquitylase CYLD is pivotal for cell cycle progression and viral replication. NPJ Precis Oncol 2021; 5:14. [PMID: 33654169 PMCID: PMC7925679 DOI: 10.1038/s41698-021-00153-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 01/13/2021] [Indexed: 12/13/2022] Open
Abstract
p18 is a key negative regulator of cell cycle progression and mediates cell cycle arrest at the G1/S phase. Ubiquitination is the prime mechanism in regulating p18 protein abundance. However, so far no post- translational regulator, especially DUBs, has been identified to regulate the protein stability of p18. In this paper, we identified CYLD as a deubiquitinase of p18, which binds to and removes the K48-linked polyubiquitylation chains conjugated onto p18, thus stabilizing the p18 protein. Loss of CYLD causes the degradation of p18 and induces the G1/S transition. Epstein-Barr virus (EBV), is the human oncovirus etiologically linked to nasopharyngeal carcinoma (NPC). Here we found that EBV drives a replication passive environment by deregulating the CYLD-p18 axis. Functionally, CYLD inhibits cell proliferation and tumorigenesis through p18 in vivo. Restoring CYLD prevents EBV induced viral replication and tumor growth. Collectively, our results identify CYLD directly stabilizes p18 to regulate the cellular G1/S transition. The reconstitution of CYLD-p18 axis could be a promising approach for EBV-positive cancer therapy.
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Affiliation(s)
- Yueshuo Li
- Key Laboratory of Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
- Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China
| | - Feng Shi
- Key Laboratory of Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
- Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China
| | - Jianmin Hu
- Key Laboratory of Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
- Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China
| | - Longlong Xie
- Key Laboratory of Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
- Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China
| | - Lin Zhao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
- Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China
| | - Min Tang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
- Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China
| | - Xiangjian Luo
- Key Laboratory of Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
- Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China
| | - Mao Ye
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/ Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, China
| | - Hui Zheng
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Min Zhou
- Key Laboratory of Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
- Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China
| | - Na Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
- Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - Jia Fan
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Zhongshan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Jian Zhou
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Zhongshan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Qiang Gao
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Zhongshan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Shuangjian Qiu
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Zhongshan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Weizhong Wu
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Zhongshan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Xin Zhang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Weihua Liao
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, China
| | - Ya Cao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, Changsha, China.
- Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, China.
- Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha, China.
- Molecular Imaging Research Center of Central South University, Changsha, Hunan, China.
- Research Center for Technologies of Nucleic Acid-Based Diagnostics and Therapeutics Hunan Province, Changsha, China.
- National Joint Engineering Research Center for Genetic Diagnostics of Infectious Diseases and Cancer, Changsha, China.
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24
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Cao Y, Xie L, Shi F, Tang M, Li Y, Hu J, Zhao L, Zhao L, Yu X, Luo X, Liao W, Bode AM. Targeting the signaling in Epstein-Barr virus-associated diseases: mechanism, regulation, and clinical study. Signal Transduct Target Ther 2021; 6:15. [PMID: 33436584 PMCID: PMC7801793 DOI: 10.1038/s41392-020-00376-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/30/2020] [Accepted: 10/15/2020] [Indexed: 12/11/2022] Open
Abstract
Epstein–Barr virus-associated diseases are important global health concerns. As a group I carcinogen, EBV accounts for 1.5% of human malignances, including both epithelial- and lymphatic-originated tumors. Moreover, EBV plays an etiological and pathogenic role in a number of non-neoplastic diseases, and is even involved in multiple autoimmune diseases (SADs). In this review, we summarize and discuss some recent exciting discoveries in EBV research area, which including DNA methylation alterations, metabolic reprogramming, the changes of mitochondria and ubiquitin-proteasome system (UPS), oxidative stress and EBV lytic reactivation, variations in non-coding RNA (ncRNA), radiochemotherapy and immunotherapy. Understanding and learning from this advancement will further confirm the far-reaching and future value of therapeutic strategies in EBV-associated diseases.
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Affiliation(s)
- Ya Cao
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China. .,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China. .,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China. .,Research Center for Technologies of Nucleic Acid-Based Diagnostics and Therapeutics Hunan Province, 410078, Changsha, China. .,Molecular Imaging Research Center of Central South University, 410008, Changsha, Hunan, China. .,National Joint Engineering Research Center for Genetic Diagnostics of Infectious Diseases and Cancer, 410078, Changsha, China. .,Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.
| | - Longlong Xie
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Feng Shi
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Min Tang
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China.,Molecular Imaging Research Center of Central South University, 410008, Changsha, Hunan, China
| | - Yueshuo Li
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Jianmin Hu
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Lin Zhao
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Luqing Zhao
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China
| | - Xinfang Yu
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China
| | - Xiangjian Luo
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China.,Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, 410078, Changsha, China.,Key Laboratory of Carcinogenesis, Chinese Ministry of Health, 410078, Changsha, China.,Molecular Imaging Research Center of Central South University, 410008, Changsha, Hunan, China
| | - Weihua Liao
- Department of Radiology, Xiangya Hospital, Central South University, 410078, Changsha, China
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
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25
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Hu J, Li Y, Li H, Shi F, Xie L, Zhao L, Tang M, Luo X, Jia W, Fan J, Zhou J, Gao Q, Qiu S, Wu W, Zhang X, Liao W, Bode AM, Cao Y. Targeting Epstein-Barr virus oncoprotein LMP1-mediated high oxidative stress suppresses EBV lytic reactivation and sensitizes tumors to radiation therapy. Theranostics 2020; 10:11921-11937. [PMID: 33204320 PMCID: PMC7667690 DOI: 10.7150/thno.46006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 09/28/2020] [Indexed: 12/24/2022] Open
Abstract
Generating oxidative stress is a critical mechanism by which host cells defend against infection by pathogenic microorganisms. Radiation resistance is a critical problem in radiotherapy against cancer. Epstein-Barr virus (EBV) is a cancer-causing virus and its reactivation plays an important role in the development of EBV-related tumors. This study aimed to explore the inner relationship and regulatory mechanism among oxidative stress, EBV reactivation, and radioresistance and to identify new molecular subtyping models and treatment strategies to improve the therapeutic effects of radiotherapy. Methods: ROS, NADP+/NADPH, and GSSG/GSH were detected to evaluate the oxidative stress of cells. 8-OHdG is a reliable oxidative stress marker to evaluate the oxidative stress in patients. Its concentration in serum was detected using an ELISA method and in biopsies was detected using IHC. qPCR array was performed to evaluate the expression of essential oxidative stress genes. qPCR, Western blot, and IHC were used to measure the level of EBV reactivation in vitro and in vivo. A Rta-IgG ELISA kit and EBV DNA detection kit were used to analyze the reactivation of EBV in serum from NPC patients. NPC tumor tissue microarrays was used to investigate the prognostic role of oxidative stress and EBV reactivation. Radiation resistance was evaluated by a colony formation assay. Xenografts were treated with NAC, radiation, or a combination of NAC and radiation. EBV DNA load of tumor tissue was evaluated using an EBV DNA detection kit. Oxidative stress, EBV reactivation, and the apoptosis rate in tumor tissues were detected by using 8-OHdG, EAD, and TUNEL assays, respectively. Results: We found that EBV can induce high oxidative stress, which promotes its reactivation and thus leads to radioresistance. Basically, EBV caused NPC cells to undergo a process of 'Redox Resetting' to acquire a new redox status with higher levels of ROS accumulation and stronger antioxidant systems by increasing the expression of the ROS-producing enzyme, NOX2, and the cellular master antioxidant regulator, Nrf2. Also, EBV encoded driving protein LMP1 promotes EBV reactivation through production of ROS. Furthermore, high oxidative stress and EBV reactivation were positively associated with poor overall survival of patients following radiation therapy and were significant related to NPC patients' recurrence and clinical stage. By decreasing oxidative stress using an FDA approved antioxidant drug, NAC, sensitivity of tumors to radiation was increased. Additionally, 8-OHdG and EBV DNA could be dual prognostic markers for NPC patients. Conclusions: Oxidative stress mediates EBV reactivation and leads to radioresistance. Targeting oxidative stress can provide therapeutic benefits to cancer patients with radiation resistance. Clinically, we, for the first time, generated a molecular subtyping model for NPC relying on 8-OHdG and EBV DNA level. These dual markers could identify patients who are at a high risk of poor outcomes but who might benefit from the sequential therapy of reactive oxygen blockade followed by radiation therapy, which provides novel perspectives for the precise treatment of NPC.
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Novel Therapies Boosting T Cell Immunity in Epstein Barr Virus-Associated Nasopharyngeal Carcinoma. Int J Mol Sci 2020; 21:ijms21124292. [PMID: 32560253 PMCID: PMC7352617 DOI: 10.3390/ijms21124292] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/05/2020] [Accepted: 06/12/2020] [Indexed: 12/11/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a malignant tumour of the head and neck affecting localised regions of the world, with the highest rates described in Southeast Asia, Northern Africa, and Greenland. Its high morbidity rate is linked to both late-stage diagnosis and unresponsiveness to conventional anti-cancer treatments. Multiple aetiological factors have been described including environmental factors, genetics, and viral factors (Epstein Barr Virus, EBV), making NPC treatment that much more complex. The most common forms of NPCs are those that originate from the epithelial tissue lining the nasopharynx and are often linked to EBV infection. Indeed, they represent 75–95% of NPCs in the low-risk populations and almost 100% of NPCs in high-risk populations. Although conventional surgery has been improved with nasopharyngectomy’s being carried out using more sophisticated surgical equipment for better tumour resection, recent findings in the tumour microenvironment have led to novel treatment options including immunotherapies and photodynamic therapy, able to target the tumour and improve the immune system. This review provides an update on the disease’s aetiology and the future of NPC treatments with a focus on therapies activating T cell immunity.
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Drp1-dependent remodeling of mitochondrial morphology triggered by EBV-LMP1 increases cisplatin resistance. Signal Transduct Target Ther 2020; 5:56. [PMID: 32433544 PMCID: PMC7237430 DOI: 10.1038/s41392-020-0151-9] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/18/2020] [Accepted: 03/18/2020] [Indexed: 01/09/2023] Open
Abstract
Latent membrane protein 1 (LMP1) is a major Epstein–Barr virus (EBV)-encoded oncoprotein involved in latency infection that regulates mitochondrial functions to facilitate cell survival. Recently, mitochondrial fission has been demonstrated as a crucial mechanism in oncovirus-mediated carcinogenesis. Mitochondrial dynamin-related protein 1 (Drp1)-mediated mitochondrial fission has an impact on the chemoresistance of cancers. However, the mechanism by which oncogenic stress promotes mitochondrial fission, potentially contributing to tumorigenesis, is not entirely understood. The role of Drp1 in the oncogenesis and prognosis of EBV-LMP1-positive nasopharyngeal carcinoma (NPC) was determined in our study. We show that EBV-LMP1 exhibits a new function in remodeling mitochondrial morphology by activating Drp1. A high level of p-Drp1 (Ser616) or a low level of p-Drp1 (Ser637) correlates with poor overall survival and disease-free survival. Furthermore, the protein level of p-Drp1 (Ser616) is related to the clinical stage (TNM stage) of NPC. Targeting Drp1 impairs mitochondrial function and induces cell death in LMP1-positive NPC cells. In addition, EBV-LMP1 regulates Drp1 through two oncogenic signaling axes, AMPK and cyclin B1/Cdk1, which promote cell survival and cisplatin resistance in NPC. Our findings provide novel insight into the role of EBV-LMP1-driven mitochondrial fission in regulating Drp1 phosphorylation at serine 616 and serine 637. Disruption of Drp1 could be a promising therapeutic strategy for LMP1-positive NPC.
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Epstein-Barr virus (EBV) and polyomaviruses are detectable in oropharyngeal cancer and EBV may have prognostic impact. Cancer Immunol Immunother 2020; 69:1615-1626. [PMID: 32314041 PMCID: PMC7347695 DOI: 10.1007/s00262-020-02570-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 04/06/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND The etiological role of human papillomavirus (HPV) in oropharyngeal squamous cell carcinoma (OPSCC) is confirmed. However, the role of other oncoviruses in OPSCC is unknown. MATERIALS AND METHODS A total of 158 consecutive OPSCC patients treated with curative intent were included. DNA extracted from tumor sections was used to detect Epstein-Barr virus (EBV), HPV, and the following polyomaviruses: John Cunningham virus (JCV), Simian virus 40 (SV40), and BK virus (BKV) with PCR. In addition, p16 expression was studied by immunohistochemistry, and EBV-encoded small RNA (EBER) transcripts were localized by in situ hybridization. The effect of viral status on overall survival (OS) and disease-free survival (DFS) was analyzed. RESULTS A total of 94/158 samples (59.5%) were HPV-positive, 29.1% contained BKV DNA, 20.3% EBV DNA, 13.9% JCV DNA, and 0.6% SV40 DNA. EBER was expressed only in stromal lymphocytes adjacent to the tumor and correlated with HPV positivity (p = 0.026). p16 expression associated only with HPV. None of the three polyomaviruses had an impact on survival. Patients with EBER-positive but HPV-negative OPSCC had significantly poorer OS and DFS than those with HPV-positive OPSCC and slightly worse prognosis compared with the patients with EBER-negative and HPV-negative OPSCC. CONCLUSION Polyomaviruses are detectable in OPSCC but seem to have no impact on survival, whereas HPV was the strongest viral prognostic factor. EBER expression, as a sign of latent EBV infection, may have prognostic impact among patients with HPV-negative OPSCC. EBER analysis may identify a new subgroup of OPSCCs unrelated to HPV.
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Phase Separation of Epstein-Barr Virus EBNA2 and Its Coactivator EBNALP Controls Gene Expression. J Virol 2020; 94:JVI.01771-19. [PMID: 31941785 DOI: 10.1128/jvi.01771-19] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 01/03/2020] [Indexed: 12/19/2022] Open
Abstract
Biological macromolecule condensates formed by liquid-liquid phase separation (LLPS) have been discovered in recent years to be prevalent in biology. These condensates are involved in diverse processes, including the regulation of gene expression. LLPS of proteins have been found in animal, plant, and bacterial species but have scarcely been identified in viral proteins. Here, we discovered that Epstein-Barr virus (EBV) EBNA2 and EBNALP form nuclear puncta that exhibit properties of liquid-like condensates (or droplets), which are enriched in superenhancers of MYC and Runx3. EBNA2 and EBNALP are transcription factors, and the expression of their target genes is suppressed by chemicals that perturb LLPS. Intrinsically disordered regions (IDRs) of EBNA2 and EBNALP can form phase-separated droplets, and specific proline residues of EBNA2 and EBNALP contribute to droplet formation. These findings offer a foundation for understanding the mechanism by which LLPS, previously determined to be related to the organization of P bodies, membraneless organelles, nucleolus homeostasis, and cell signaling, plays a key role in EBV-host interactions and is involved in regulating host gene expression. This work suggests a novel anti-EBV strategy where developing appropriate drugs of interfering LLPS can be used to destroy the function of the EBV's transcription factors.IMPORTANCE Protein condensates can be assembled via liquid-liquid phase separation (LLPS), a process involving the concentration of molecules in a confined liquid-like compartment. LLPS allows for the compartmentalization and sequestration of materials and can be harnessed as a sensitive strategy for responding to small changes in the environment. This study identified the Epstein-Barr virus (EBV) proteins EBNA2 and EBNALP, which mediate virus and cellular gene transcription, as transcription factors that can form liquid-like condensates at superenhancer sites of MYC and Runx3. This study discovered the first identified LLPS of EBV proteins and emphasized the importance of LLPS in controlling host gene expression.
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Wu X, Zhou Z, Xu S, Liao C, Chen X, Li B, Peng J, Li D, Yang L. Extracellular vesicle packaged LMP1-activated fibroblasts promote tumor progression via autophagy and stroma-tumor metabolism coupling. Cancer Lett 2020; 478:93-106. [PMID: 32160975 DOI: 10.1016/j.canlet.2020.03.004] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 12/13/2022]
Abstract
Several reports have demonstrated that Epstein-Barr virus (EBV) encoded latent membrane protein 1 (LMP1), which is transferred by extracellular vesicles (EVs) or exosomes, can promote cancer progression. However, its mechanism is still not fully understood. In the present study, we demonstrated that EV packaged LMP1 can activate normal fibroblasts (NFs) into cancer-associated fibroblasts (CAFs). The NF-κB p65 pathway is the key signal that promotes the activation of NFs to CAFs in nasopharyngeal carcinoma (NPC). In activated CAFs, aerobic glycolysis and autophagy were increased. Moreover, glucose uptake and lactate production were decreased, and mitochondrial activity in tumor cells was enhanced, which supported the Reverse Warburg Effect (RWE). During this process, upregulation of MCT4 in CAFs and MCT1 in tumor cells was observed. The NF-κB p65 pathway also plays an important role in the regulation of MCT4. Furthermore, co-culture with CAFs promoted the proliferation, migration and radiation resistance of NPC cells. And EV packaged LMP1 promoted tumor proliferation and pre-metastatic niche formation by activating CAFs in vivo. Our findings indicate that EV packaged LMP1-activated CAFs promote tumor progression via autophagy and stroma-tumor metabolism coupling.
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Affiliation(s)
- Xia Wu
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South University, Changsha, China; Cancer Research Institute, School of Basic Medicine Science, Central South University, Changsha, China
| | - Zhuan Zhou
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South University, Changsha, China; Cancer Research Institute, School of Basic Medicine Science, Central South University, Changsha, China
| | - San Xu
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South University, Changsha, China; Cancer Research Institute, School of Basic Medicine Science, Central South University, Changsha, China
| | - Chaoliang Liao
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South University, Changsha, China; Cancer Research Institute, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xi Chen
- Institute of Molecular Medicine and Oncology, College of Biology, Hunan University, Changsha, China
| | - Bo Li
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
| | - Jinwu Peng
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
| | - Dan Li
- Institute of Molecular Medicine and Oncology, College of Biology, Hunan University, Changsha, China.
| | - Lifang Yang
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South University, Changsha, China; Cancer Research Institute, School of Basic Medicine Science, Central South University, Changsha, China.
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Wild-type IDH2 contributes to Epstein-Barr virus-dependent metabolic alterations and tumorigenesis. Mol Metab 2020; 36:100966. [PMID: 32224436 PMCID: PMC7109632 DOI: 10.1016/j.molmet.2020.02.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/11/2020] [Accepted: 02/11/2020] [Indexed: 02/07/2023] Open
Abstract
Objective Epstein–Barr virus (EBV) is a well-recognized oncogenic virus that can induce host cell metabolic reprogramming and tumorigenesis by targeting vital metabolic enzymes or regulators. This study aims to explore the role of wild-type isocitrate dehydrogenase 2 (IDH2) in metabolic reprogramming and tumorigenesis induced by EBV-encoded latent membrane protein 1 (LMP1). Methods Mechanistic dissection of wild-type IDH2 in EBV-LMP1-induced tumorigenesis was investigated using western blotting, real-time polymerase chain reaction (PCR), immunochemistry, chromatin immunoprecipitation (ChIP), and luciferase assay. The role of wild-type IDH2 was examined by cell viability assays/Sytox Green staining in vitro and xenograft assays in vivo. Results IDH2 over-expression is a prognostic indicator of poorer disease-free survival for patients with head and neck squamous cell carcinoma (HNSCC). IDH2 expression is also upregulated in nasopharyngeal carcinoma (NPC, a subtype of HNSCC) tissues, which is positively correlated with EBV-LMP1 expression. EBV-LMP1 contributes to NPC cell viability and xenograft tumor growth mediated through wild-type IDH2. IDH2-dependent changes in intracellular α-ketoglutarate (α-KG) and 2-hydroxyglutarate (2-HG) contribute to EBV-LMP1-induced tumorigenesis in vitro and in vivo. Elevated serum 2-HG level is associated with high EBV DNA and viral capsid antigen-immunoglobulin A (VCA-IgA) levels in patients with NPC. A significantly positive correlation exists between serum 2-HG level and regional lymph node metastases of NPC. EBV-LMP1 enhances the binding of c-Myc with the IDH2 promoter and transcriptionally activates wild-type IDH2 through c-Myc. Targeting IDH2 decreased intracellular 2-HG levels and survival of EBV-LMP1-positive tumor cells in vitro and in vivo. Conclusions Our results demonstrate that the EBV-LMP1/c-Myc/IDH2WT signaling axis is critical for EBV-dependent metabolic changes and tumorigenesis, which may provide new insights into EBV-related cancer diagnosis and therapy.
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32
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Epstein Barr Virus-associated Pediatric Neoplasms. ARCHIVES OF PEDIATRIC INFECTIOUS DISEASES 2020. [DOI: 10.5812/pedinfect.94371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sabatini ME, Chiocca S. Human papillomavirus as a driver of head and neck cancers. Br J Cancer 2020; 122:306-314. [PMID: 31708575 PMCID: PMC7000688 DOI: 10.1038/s41416-019-0602-7] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 08/28/2019] [Accepted: 09/23/2019] [Indexed: 12/11/2022] Open
Abstract
The human papillomavirus (HPV) family includes more than 170 different types of virus that infect stratified epithelium. High-risk HPV is well established as the primary cause of cervical cancer, but in recent years, a clear role for this virus in other malignancies is also emerging. Indeed, HPV plays a pathogenic role in a subset of head and neck cancers-mostly cancers of the oropharynx-with distinct epidemiological, clinical and molecular characteristics compared with head and neck cancers not caused by HPV. This review summarises our current understanding of HPV in these cancers, specifically detailing HPV infection in head and neck cancers within different racial/ethnic subpopulations, and the differences in various aspects of these diseases between women and men. Finally, we provide an outlook for this disease, in terms of clinical management, and consider the issues of 'diagnostic biomarkers' and targeted therapies.
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Affiliation(s)
- Maria Elisa Sabatini
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, IFOM-IEO Campus, Via Adamello 16, 20139, Milan, Italy
| | - Susanna Chiocca
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, IFOM-IEO Campus, Via Adamello 16, 20139, Milan, Italy.
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Gu YY, Luo B, Li CY, Huang LS, Chen G, Feng ZB, Peng ZG. Expression and clinical significance of neuropilin-1 in Epstein-Barr virus-associated lymphomas. Cancer Biomark 2020; 25:259-273. [PMID: 31282408 DOI: 10.3233/cbm-192437] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND The expression of neuropilin-1 (NRP-1) in Epstein-Barr virus (EBV)-associated lymphomas and its relationships with clinicopathological parameters was investigated. METHODS The researchers compared 111 cases of patients with lymphoma to 20 cases of reactive lymphoid hyperplasia. In situ hybridization was applied to observe the expression of EBV-encoded RNA (EBER) in lymphomas, and immunohistochemistry was used to detect the NRP-1 expression in lymphoma tissues and lymph node tissues with reactive hyperplasia. RESULTS In these 111 cases, the EBER of 62 cases (55.9%) appeared positive. NRP-1 was relatively highly expressed in lymphomas (P= 0.019). Further, NRP-1 showed higher expression in lymphomas with positive EBER than in negative ones. A comprehensive analysis revealed that NRP-1 was differently expressed in NK/T-cell lymphoma, Hodgkin's lymphoma, diffuse large B-cell lymphoma, and anaplastic large cell lymphoma (P= 0.027). Moreover, highly expressed NRP-1 was found to be a useful independent prognostic factor in assessing overall survival and progression-free survival rates in cases of non-Hodgkin's lymphoma (NHL). CONCLUSIONS NRP-1 exhibited higher expression in lymphomas, and it was positively expressed in EBV-positive lymphomas. Moreover, highly expressed NRP-1 can be used as an undesirable independent prognostic factor in NHL.
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Affiliation(s)
- Yong-Yao Gu
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China.,Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Bin Luo
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China.,Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Chun-Yao Li
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Lan-Shan Huang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Gang Chen
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Zhen-Bo Feng
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Zhi-Gang Peng
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, China
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Zhang G, Li Z, Zhou Q. Utility of Serum EB Virus Zta Antibody in the Diagnostic of Nasopharyngeal Carcinoma: Evidences From 2,126 Cases and 15,644 Controls. Front Oncol 2019; 9:1391. [PMID: 31921648 PMCID: PMC6930900 DOI: 10.3389/fonc.2019.01391] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/25/2019] [Indexed: 12/23/2022] Open
Abstract
We collected previous published data and performed a systematical assessment for the diagnostic value of serum Zta antibody in NPC patients. Using bivariate-mixed effect model, we calculated the sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnosis odds ratio (DOR), and summary receiver operating characteristics curve (AUC) and their 95% confidence intervals (CIs). We also performed subgroup analysis to explore the heterogeneity. We included 23 studies including 24 pieces of data and 17,770 study subjects (2,126 cases and 15,644 controls). The overall combined sensitivity was 0.85 (95%CI: 0.80–0.89) and the combined specificity was 0.90 (95%CI: 0.87–0.93). The summarized AUC was 0.94 with 95%CI of 0.92–0.96. The PLR was 8.9 (95%CI: 6.4–12.2) and the NLR was 0.17(95%CI: 0.12–0.23). The diagnostic odds ratio was 53 (95%CI: 32–87). For publication year, the sensitivity was 0.88 (95%CI: 0.84–0.91) and the specificity was 0.90 (95%CI: 0.84–0.93) for ≤2006. The AUC, PLR, NLR and DOR were 0.94, 8.8, 0.13, and 64. The pooled results were similar for >2006 group. For different sample size, the pooled AUC was 0.94 for ≤Median and was 0.95 for >Median that were very close to the overall estimations. For different population setting, no overlap was found in the sensitivity (0.84 vs. 0.87), specificity (0.90 vs. 0.84), PLR (8.7 vs. 5.5), NLR (0.16 vs. 0.08–0.33), DOR (49 vs. 35), and AUC (0.94 vs. 0.92) between Asian and others. The serum EBV antibody examination has high diagnostic accuracy for early-stage NPC. The diagnostic accuracy seems not to be influenced by sample size, publication year, and ethnic. Considering the few numbers of study with non-Asian population, the present results need to be confirmed in other population setting.
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Affiliation(s)
- Guangying Zhang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Zhanzhan Li
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Qin Zhou
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
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37
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Lu T, Xie X, Guo Q, Zhan S, Lin C, Lin S, Zhang Y, Zong J, Pan J. Prognosis of nasopharyngeal carcinoma with insufficient radical dose to the primary site in the intensity-modulated radiotherapy era. Head Neck 2019; 41:3516-3524. [PMID: 31313419 DOI: 10.1002/hed.25865] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 06/15/2019] [Accepted: 06/18/2019] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND It was reported that reduced radiotherapy is feasible for children with nasopharyngeal carcinoma (NPC) and papilloma virus-positive oropharyngeal cancer. Therefore, we performed this study to explore the prognosis of reduced-dose radiation in adult with NPC. METHODS Between 2004 and 2013, we retrospectively analyzed 19 patients histologically diagnosed with NPC, who received <66 Gy radiation therapy. Ten patients receiving <54 Gy to the primary site were group A. Nine patients receiving ≥54 Gy were group B. RESULTS Thirteen patients received induction chemotherapy (IC) for two or three cycles. In group A, the 5-year overall survival (OS) was 50.0%. For group B, the 5-year OS, locoregional relapse-free survival, progression-free survival, and distant metastasis-free survival were 88.9%, 100.0%, 88.9%, and 88.9%. Group B had a better prognosis than group A on OS (88.9% vs 50.0%, P = .03). CONCLUSION Patients receiving ≥54 Gy but <66 Gy with IC achieved good local control and long-term survival.
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Affiliation(s)
- Tianzhu Lu
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Xingyun Xie
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Qiaojuan Guo
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fuzhou, China.,Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China.,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Shenghua Zhan
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fuzhou, China.,Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China.,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Cheng Lin
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Shaojun Lin
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fuzhou, China.,Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China.,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Yu Zhang
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fuzhou, China.,Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China.,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Jingfeng Zong
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fuzhou, China.,Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China.,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Jianji Pan
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fuzhou, China.,Department of Radiation Oncology, Fujian Cancer Hospital, Fuzhou, China.,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fujian Medical University Cancer Hospital, Fuzhou, China
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DuShane JK, Maginnis MS. Human DNA Virus Exploitation of the MAPK-ERK Cascade. Int J Mol Sci 2019; 20:ijms20143427. [PMID: 31336840 PMCID: PMC6679023 DOI: 10.3390/ijms20143427] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/09/2019] [Accepted: 07/11/2019] [Indexed: 12/19/2022] Open
Abstract
The extracellular signal-regulated kinases (ERKs) comprise a particular branch of the mitogen-activated protein kinase cascades (MAPK) that transmits extracellular signals into the intracellular environment to trigger cellular growth responses. Similar to other MAPK cascades, the MAPK-ERK pathway signals through three core kinases—Raf, MAPK/ERK kinase (MEK), and ERK—which drive the signaling mechanisms responsible for the induction of cellular responses from extracellular stimuli including differentiation, proliferation, and cellular survival. However, pathogens like DNA viruses alter MAPK-ERK signaling in order to access DNA replication machineries, induce a proliferative state in the cell, or even prevent cell death mechanisms in response to pathogen recognition. Differential utilization of this pathway by multiple DNA viruses highlights the dynamic nature of the MAPK-ERK pathway within the cell and the importance of its function in regulating a wide variety of cellular fates that ultimately influence viral infection and, in some cases, result in tumorigenesis.
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Affiliation(s)
- Jeanne K DuShane
- Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME 04401, USA
| | - Melissa S Maginnis
- Department of Molecular and Biomedical Sciences, The University of Maine, Orono, ME 04401, USA.
- Graduate School in Biomedical Sciences and Engineering, The University of Maine, Orono, ME 04401, USA.
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Shi F, Zhou M, Shang L, Du Q, Li Y, Xie L, Liu X, Tang M, Luo X, Fan J, Zhou J, Gao Q, Qiu S, Wu W, Zhang X, Bode AM, Cao Y. EBV(LMP1)-induced metabolic reprogramming inhibits necroptosis through the hypermethylation of the RIP3 promoter. Theranostics 2019; 9:2424-2438. [PMID: 31131045 PMCID: PMC6525991 DOI: 10.7150/thno.30941] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 03/12/2019] [Indexed: 12/11/2022] Open
Abstract
EBV infection is a recognized epigenetic driver of carcinogenesis. We previously showed that EBV could protect cancer cells from TNF-induced necroptosis. This study aims to explore the epigenetic mechanisms allowing cancer cells with EBV infection to escape from RIP3-dependent necroptosis. Methods: Data from the TCGA database were used to evaluate the prognostic value of RIP3 promoter methylation and its expression. Western blotting, real-time PCR, and immunochemistry were conducted to investigate the relationship between LMP1 and RIP3 in cell lines and NPC tissues. BSP, MSP and hMeDIP assays were used to examine the methylation level. Induction of necroptosis was detected by cell viability assay, p-MLKL, and Sytox Green staining. Results: RIP3 promoter hypermethylation is an independent prognostic factor of poorer disease-free and overall survival in HNSCC patients, respectively. RIP3 is down-regulated in NPC (a subtype of HNSCC). EBV(LMP1) suppresses RIP3 expression by hypermethylation of the RIP3 promoter. RIP3 protein expression was inversely correlated with LMP1 expression in NPC tissues. Restoring RIP3 expression in EBV(LMP1)-positive cells inhibits xenograft tumor growth. The accumulation of fumarate and reduction of α-KG in EBV(LMP1)-positive cells led to RIP3 silencing due to the inactivation of TETs. Decreased FH activity caused fumarate accumulation, which might be associated with its acetylation. Incubating cells with fumarate protected NPC cells from TNF-induced necroptosis. Conclusion: These results demonstrate a pathway by which EBV(LMP1)-associated metabolite changes inhibited necroptosis signaling by DNA methylation, and shed light on the mechanism underlying EBV-related carcinogenesis, which may provide new options for cancer diagnosis and therapy.
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De Vitto H, Bode AM, Dong Z. The PGC-1/ERR network and its role in precision oncology. NPJ Precis Oncol 2019; 3:9. [PMID: 30911677 PMCID: PMC6428848 DOI: 10.1038/s41698-019-0081-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 01/18/2019] [Indexed: 12/13/2022] Open
Abstract
Transcriptional regulators include a superfamily of nuclear proteins referred to as co-activators and co-repressors, both of which are involved in controlling the functions of several nuclear receptors (NRs). The Nuclear Receptor Signaling Atlas (NURSA) has cataloged the composition of NRs, co-regulators, and ligands present in the human cell and their effort has been identified in more than 600 potential molecules. Given the importance of co-regulators in steroid, retinoid, and thyroid hormone signaling networks, hypothesizing that NRs/co-regulators are implicated in a wide range of pathologies are tempting. The co-activators known as peroxisome proliferator-activated receptor gamma co-activator 1 (PGC-1) and their key nuclear partner, the estrogen-related receptor (ERR), are emerging as pivotal transcriptional signatures that regulate an extremely broad repertoire of mitochondrial and metabolic genes, making them very attractive drug targets for cancer. Several studies have provided an increased understanding of the functional and structural biology of nuclear complexes. However, more comprehensive work is needed to create different avenues to explore the therapeutic potential of NRs/co-activators in precision oncology. Here, we discuss the emerging data associated with the structure, function, and molecular biology of the PGC-1/ERR network and address how the concepts evolving from these studies have deepened our understanding of how to develop more effective treatment strategies. We present an overview that underscores new biological insights into PGC-1/ERR to improve cancer outcomes against therapeutic resistance. Finally, we discuss the importance of exploiting new technologies such as single-particle cryo-electron microscopy (cryo-EM) to develop a high-resolution biological structure of PGC-1/ERR, focusing on novel drug discovery for precision oncology.
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Affiliation(s)
- Humberto De Vitto
- The Hormel Institute, University of Minnesota, 801 16th Avenue, Austin, NE 55912 USA
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, 801 16th Avenue, Austin, NE 55912 USA
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, 801 16th Avenue, Austin, NE 55912 USA
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Li Y, Shi F, Hu J, Xie L, Bode AM, Cao Y. The Role of Deubiquitinases in Oncovirus and Host Interactions. JOURNAL OF ONCOLOGY 2019; 2019:2128410. [PMID: 31396277 PMCID: PMC6668545 DOI: 10.1155/2019/2128410] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/18/2019] [Indexed: 12/15/2022]
Abstract
Infection-related cancer comprises one-sixth of the global cancer burden. Oncoviruses can directly or indirectly contribute to tumorigenesis. Ubiquitination is a dynamic and reversible posttranslational modification that participates in almost all cellular processes. Hijacking of the ubiquitin system by viruses continues to emerge as a central theme around the viral life cycle. Deubiquitinating enzymes (DUBs) maintain ubiquitin homeostasis by removing ubiquitin modifications from target proteins, thereby altering protein function, stability, and signaling pathways, as well as acting as key mediators between the virus and its host. In this review, we focus on the multiple functions of DUBs in RIG-I-like receptors (RLRs) and stimulator of interferon genes (STING)-mediated antiviral signaling pathways, oncoviruses regulation of NF-κB activation, oncoviral life cycle, and the potential of DUB inhibitors as therapeutic strategies.
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Affiliation(s)
- Yueshuo Li
- 1Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410078, China
- 2Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha 410078, China
- 3Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha 410078, China
| | - Feng Shi
- 1Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410078, China
- 2Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha 410078, China
- 3Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha 410078, China
| | - Jianmin Hu
- 1Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410078, China
- 2Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha 410078, China
- 3Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha 410078, China
| | - Longlong Xie
- 1Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410078, China
- 2Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha 410078, China
- 3Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha 410078, China
| | - Ann M. Bode
- 4The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Ya Cao
- 1Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha 410078, China
- 2Cancer Research Institute and School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha 410078, China
- 3Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Changsha 410078, China
- 5Research Center for Technologies of Nucleic Acid-Based Diagnostics and Therapeutics Hunan Province, Changsha 410078, China
- 6Molecular Imaging Research Center of Central South University, Changsha 410008, Hunan, China
- 7National Joint Engineering Research Center for Genetic Diagnostics of Infectious Diseases and Cancer, Changsha 410078, China
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Chavez-Calvillo G, Martin S, Hamm C, Sztuba-Solinska J. The Structure-To-Function Relationships of Gammaherpesvirus-Encoded Long Non-Coding RNAs and Their Contributions to Viral Pathogenesis. Noncoding RNA 2018; 4:ncrna4040024. [PMID: 30261651 PMCID: PMC6315926 DOI: 10.3390/ncrna4040024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 09/17/2018] [Accepted: 09/18/2018] [Indexed: 12/17/2022] Open
Abstract
Advances in next-generation sequencing have facilitated the discovery of a multitude of long non-coding RNAs (lncRNAs) with pleiotropic functions in cellular processes, disease, and viral pathogenesis. It came as no surprise when viruses were also revealed to transcribe their own lncRNAs. Among them, gammaherpesviruses, one of the three subfamilies of the Herpesviridae, code their largest number. These structurally and functionally intricate non-coding (nc) transcripts modulate cellular and viral gene expression to maintain viral latency or prompt lytic reactivation. These lncRNAs allow for the virus to escape cytosolic surveillance, sequester, and re-localize essential cellular factors and modulate the cell cycle and proliferation. Some viral lncRNAs act as “messenger molecules”, transferring information about viral infection to neighboring cells. This broad range of lncRNA functions is achieved through lncRNA structure-mediated interactions with effector molecules of viral and host origin, including other RNAs, proteins and DNAs. In this review, we discuss examples of gammaherpesvirus-encoded lncRNAs, emphasize their unique structural attributes, and link them to viral life cycle, pathogenesis, and disease progression. We will address their potential as novel targets for drug discovery and propose future directions to explore lncRNA structure and function relationship.
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Affiliation(s)
- Gabriela Chavez-Calvillo
- Department of Biological Sciences, Auburn University, 120 W. Samford Ave, Rouse Life Sciences Building, Auburn, AL 36849, USA.
| | - Sarah Martin
- Department of Biological Sciences, Auburn University, 120 W. Samford Ave, Rouse Life Sciences Building, Auburn, AL 36849, USA.
| | - Chad Hamm
- Department of Biological Sciences, Auburn University, 120 W. Samford Ave, Rouse Life Sciences Building, Auburn, AL 36849, USA.
| | - Joanna Sztuba-Solinska
- Department of Biological Sciences, Auburn University, 120 W. Samford Ave, Rouse Life Sciences Building, Auburn, AL 36849, USA.
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Air-Liquid Interface System To Understand Epstein-Barr Virus-Associated Nasopharyngeal Carcinoma. mSphere 2018; 3:3/4/e00350-18. [PMID: 30021881 PMCID: PMC6052335 DOI: 10.1128/msphere.00350-18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Epstein-Barr virus (EBV) infects epithelial cells and is associated with epithelial malignancies. Although EBV reactivation is induced by epithelial differentiation, the available methods for differentiation are not widely used. Epstein-Barr virus (EBV) infects epithelial cells and is associated with epithelial malignancies. Although EBV reactivation is induced by epithelial differentiation, the available methods for differentiation are not widely used. In a recent study, Caves et al. (mSphere 3:e00152-18, 2018, https://doi.org/10.1128/mSphere.00152-18) explored the use of a new transwell-based air-liquid interface (ALI) system to differentiate EBV-infected nasopharyngeal carcinoma cells. They found that cells cultured in the ALI system expressed markers of differentiation and supported complete EBV reactivation. This system offers an easy method for differentiation that could be widely adopted. This system could be extended to other epithelial cell types.
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Williams M, Ariza ME. EBV Positive Diffuse Large B Cell Lymphoma and Chronic Lymphocytic Leukemia Patients Exhibit Increased Anti-dUTPase Antibodies. Cancers (Basel) 2018; 10:E129. [PMID: 29723986 PMCID: PMC5977102 DOI: 10.3390/cancers10050129] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/20/2018] [Accepted: 04/25/2018] [Indexed: 12/22/2022] Open
Abstract
The Epstein-Barr virus (EBV), which is a ubiquitous γ-herpesvirus, establishes a latent infection in more than 90% of the global adult population. EBV-associated malignancies have increased by 14.6% over the last 20 years, and account for approximately 1.5% of all cancers worldwide and 1.8% of all cancer deaths. However, the potential involvement/contribution of lytic proteins to the pathophysiology of EBV-associated cancers is not well understood. We have previously demonstrated that the EBV-deoxyuridine triphosphate nucleotidohydrolase (dUTPase) modulates innate and adaptive immune responses by engaging the Toll-Like Receptor 2 (TLR2), which leads to the modulation of downstream genes involved in oncogenesis, chronic inflammation, and in effector T-cell function. Furthermore, examination of serum samples from diffuse large B-cell lymphoma (DLBCL) and chronic lymphocytic leukemia patients revealed the presence of increased levels of anti-dUTPase antibodies in both cohorts compared to controls with the highest levels (3.67-fold increase) observed in DLBCL female cases and the lowest (2.12-fold increase) in DLBCL males. Using computer-generated algorithms, dUTPase amino acid sequence alignments, and functional studies of BLLF3 mutants, we identified a putative amino acid motif involved with TLR2 interaction. These findings suggest that the EBV-dUTPase: TLR2 interaction is a potential molecular target that could be used for developing novel therapeutics (small molecules/vaccines).
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Affiliation(s)
- Marshall Williams
- Department of Cancer Biology and Genetics, The Ohio State University College of Medicine, Columbus, OH 43210, USA.
- Institute for Behavioral Medicine Research, The Ohio State University College of Medicine, Columbus, OH 43210, USA.
| | - Maria Eugenia Ariza
- Department of Cancer Biology and Genetics, The Ohio State University College of Medicine, Columbus, OH 43210, USA.
- Institute for Behavioral Medicine Research, The Ohio State University College of Medicine, Columbus, OH 43210, USA.
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Wu CC, Fang CY, Huang SY, Chiu SH, Lee CH, Chen JY. Perspective: Contribution of Epstein-Barr virus (EBV) Reactivation to the Carcinogenicity of Nasopharyngeal Cancer Cells. Cancers (Basel) 2018; 10:cancers10040120. [PMID: 29673164 PMCID: PMC5923375 DOI: 10.3390/cancers10040120] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 04/02/2018] [Accepted: 04/12/2018] [Indexed: 12/30/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a squamous cell carcinoma derived from the epithelium of the post-nasal cavity, with a unique geographic and ethnic distribution. Epstein–Barr virus (EBV) is an etiological agent of NPC, but how it contributes to carcinogenesis is not completely clear. Although it is thought that EBV latency participates in the development of NPC, increasing evidence reveals that the lytic cycle also plays an important role in the carcinogenic process. In this review, we summarize our recent studies on how EBV reactivation causes genomic instability and accelerates tumorigenesis in epithelial cells. The roles of three lytic genes, namely, BRLF1, BGLF5 and BALF3, in this process are also introduced. Moreover, blocking EBV reactivation using natural compounds may help delay the progression of NPC tumorigenesis. These studies provide a new insight into NPC carcinogenesis and raise the possibility that inhibition of EBV reactivation may be a novel approach to prevent the relapse of NPC.
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Affiliation(s)
- Chung-Chun Wu
- National Institute of Cancer Research, National Health Research Institutes, Zhunan 350, Taiwan.
| | - Chih-Yeu Fang
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan.
| | - Sheng-Yen Huang
- National Institute of Cancer Research, National Health Research Institutes, Zhunan 350, Taiwan.
| | - Shih-Hsin Chiu
- National Institute of Cancer Research, National Health Research Institutes, Zhunan 350, Taiwan.
| | - Chia-Huei Lee
- National Institute of Cancer Research, National Health Research Institutes, Zhunan 350, Taiwan.
| | - Jen-Yang Chen
- National Institute of Cancer Research, National Health Research Institutes, Zhunan 350, Taiwan.
- Department of Microbiology, College of Medicine, National Taiwan University, Taipei 100, Taiwan.
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Teow SY, Yap HY, Peh SC. Epstein-Barr Virus as a Promising Immunotherapeutic Target for Nasopharyngeal Carcinoma Treatment. J Pathog 2017; 2017:7349268. [PMID: 29464124 PMCID: PMC5804410 DOI: 10.1155/2017/7349268] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/09/2017] [Indexed: 12/21/2022] Open
Abstract
Epstein-Barr virus (EBV) is a pathogen that infects more than 90% of global human population. EBV primarily targets B-lymphocytes and epithelial cells while some of them infect monocyte/macrophage, T-lymphocytes, and dendritic cells (DCs). EBV infection does not cause death by itself but the infection has been persistently associated with certain type of cancers such as nasopharyngeal carcinoma (NPC), Burkitt's lymphoma (BL), and Hodgkin's lymphoma (HL). Recent findings have shown promise on targeting EBV proteins for cancer therapy by immunotherapeutic approach. Some studies have also shown the success of adopting EBV-based therapeutic vaccines for the prevention of EBV-associated cancer particularly on NPC. In-depth investigations are in progress to refine the current therapeutic and vaccination strategies. In present review, we discuss the highly potential EBV targets for NPC immunotherapy and therapeutic vaccine development as well as addressing the underlying challenges in the process of bringing the therapy and vaccination from the bench to bedside.
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Affiliation(s)
- Sin-Yeang Teow
- Sunway Institute for Healthcare Development (SIHD), Sunway University, Jalan Universiti, Bandar Sunway, 47500 Subang Jaya, Selangor Darul Ehsan, Malaysia
| | - Hooi-Yeen Yap
- Sunway Institute for Healthcare Development (SIHD), Sunway University, Jalan Universiti, Bandar Sunway, 47500 Subang Jaya, Selangor Darul Ehsan, Malaysia
| | - Suat-Cheng Peh
- Sunway Institute for Healthcare Development (SIHD), Sunway University, Jalan Universiti, Bandar Sunway, 47500 Subang Jaya, Selangor Darul Ehsan, Malaysia
- Anatomical Pathology Department, Sunway Medical Centre, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor Darul Ehsan, Malaysia
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Addressing the challenges of applying precision oncology. NPJ Precis Oncol 2017; 1:28. [PMID: 29872710 PMCID: PMC5871855 DOI: 10.1038/s41698-017-0032-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/25/2017] [Accepted: 07/26/2017] [Indexed: 02/07/2023] Open
Abstract
Precision oncology is described as the matching of the most accurate and effective treatments with the individual cancer patient. Identification of important gene mutations, such as BRCA1/2 that drive carcinogenesis, helped pave the way for precision diagnosis in cancer. Oncoproteins and their signaling pathways have been extensively studied, leading to the development of target-based precision therapies against several types of cancers. Although many challenges exist that could hinder the success of precision oncology, cutting-edge tools for precision diagnosis and precision therapy will assist in overcoming many of these difficulties. Based on the continued rapid progression of genomic analysis, drug development, and clinical trial design, precision oncology will ultimately become the standard of care in cancer therapeutics.
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