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Banko A, Cirkovic A, Miskovic R, Jeremic I, Grk M, Basaric M, Lazarevic I, Raskovic S, Despotovic A, Miljanovic D. Epstein-Barr virus infection as potential indicator of the occurrence and clinical presentation of systemic lupus erythematosus. Front Immunol 2023; 14:1307589. [PMID: 38146370 PMCID: PMC10749334 DOI: 10.3389/fimmu.2023.1307589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 11/20/2023] [Indexed: 12/27/2023] Open
Abstract
Introduction The relationship between Systemic lupus erythematosus (SLE) and Epstein-Barr virus (EBV) infection has been suggested for decades, but the underlying mechanism of the EBV influence on SLE development remains to be elucidated. Methods The goals of this research, which included 103 SLE patients and 99 controls, were to investigate the association of the parameters of EBV infection and SLE, to explore whether pooled demographic, clinical and EBV markers achieve a more significant effect on SLE development than each of them individually, and to evaluate EBV nuclear antigen 1 (EBNA1) and latent membrane protein 1 (LMP1) gene polymorphisms in isolates from SLE patients. Results Comprehensive results related to serological, molecular and sequence markers of EBV infection in SLE patients demonstrated even 24 times higher possibility of having SLE if there is the presence of anti-EBV-EA(D) (early antigen) IgG antibodies (OR=24.086 95%CI OR=2.86-216.07, p=0.004). There was the same distribution of glucocorticoids (p=0.130), antimalarials (p=0.213), and immunosuppressives (p=0.712) in anti-EBV-EA(D) IgG positive and negative SLE patients. Further, higher anti-EBV-EA(D) IgG antibodies titers were identified as independent factors associated with lymphopenia, hematological SLE manifestation (OR=1.041, 95%CI OR=1.01-1.08, p=0.025, while a higher titer of anti-CA (viral capsid antigen) IgG antibodies (OR=1.015, 95%CI OR=1.01-1.03, p=0.019) and positive RF (rheumatoid factors) (OR=4.871, 95%CI OR=1.52-15.61, p=0.008) were identified as independent factors associated with alopecia within SLE. Finally, novel data on EBV EBNA1 and LMP1 gene polymorphisms in lupus are reported. Conclusion The results support further investigation targeting EBV as a prognostic marker and therapeutic goal for lupus.
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Affiliation(s)
- Ana Banko
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Andja Cirkovic
- Institute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Rada Miskovic
- Clinic of Allergy and Immunology, University Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivica Jeremic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milka Grk
- Institute of Human Genetics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milica Basaric
- Institute of Rheumatology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivana Lazarevic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Sanvila Raskovic
- Clinic of Allergy and Immunology, University Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Aleksa Despotovic
- Institute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Danijela Miljanovic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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Wang Y, Rong Y, Yang L, Lu Z. Genetic variability and mutation of Epstein‒Barr virus (EBV)-encoded LMP-1 and BHRF-1 genes in EBV-infected patients: identification of precise targets for development of personalized EBV vaccines. Virus Genes 2023; 59:541-553. [PMID: 37243920 PMCID: PMC10220333 DOI: 10.1007/s11262-023-02006-x] [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: 01/09/2023] [Accepted: 05/08/2023] [Indexed: 05/29/2023]
Abstract
The critical Epstein‒Barr virus (EBV)-encoded latent membrane protein 1 (LMP-1) and BamHI fragment H rightward open reading frame 1 (BHRF-1) genes affect EBV-mediated malignant transformation and virus replication during EBV infection. Therefore, these two genes are considered ideal targets for EBV vaccine development. However, gene mutations in LMP-1 and BHRF-1 in different cohorts may affect the biological functions of EBV, which would seriously hinder development of personalized vaccines for EBV. In the present study, by performing nested polymerase chain reaction (nested PCR) and DNA sequence techniques, we analyzed the nucleotide variability and phylogeny of LMP-1 containing a 30 bp deletion region (del-LMP-1) and BHRF-1 in EBV-infected patients (N = 382) and healthy persons receiving physical examination (N = 98; defined as the control group) in Yunnan Province, China. Three BHRF-1 subtypes were identified in this study: 79V88V, 79L88L, and 79V88L, with mutation frequencies of 58.59%, 24.24%, and 17.17%, respectively. Compared with the control group, the distribution of BHRF-1 subtypes of the three groups showed no significant difference, suggesting that BHRF-1 is highly conserved in EBV-related samples. In addition, a short fragment of del-LMP-1 was found in 133 cases, and the nucleotide variation rate was 87.50% (133/152). For del-LMP-1, a significant distribution in three groups was detected, as characterized by a high mutation rate. In conclusion, our study illustrates gene variability and mutations of EBV-encoded del-LMP-1 and BHRF-1 in clinical samples. Highly mutated LMP-1 might be associated with various types of EBV-related diseases, indicating that BHRF-1 combined with LMP-1 may be used as an ideal target for development of EBV personalized vaccines.
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Affiliation(s)
- Yue Wang
- Forensic Center of Justice, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yuan Rong
- Forensic Center of Justice, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lijuan Yang
- Central Lab of the 2Nd, Affiliated Hospital of Kunming Medical University, Kunming, 650101 Yunnan China
| | - Zhiyan Lu
- Forensic Center of Justice, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
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Ampofo-Asiedu J, Tagoe EA, Abrahams DOA, Petershie B, Quaye O. Epstein-Barr virus genotype-1 and Mediterranean + strain in gastric cancer biopsies of Ghanaian patients. Exp Biol Med (Maywood) 2023; 248:1221-1228. [PMID: 37417205 PMCID: PMC10621474 DOI: 10.1177/15353702231181355] [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: 01/31/2023] [Accepted: 03/29/2023] [Indexed: 07/08/2023] Open
Abstract
Gastric cancer (GC) prevalence is on the increase in Ghana, and Epstein-Barr virus (EBV) is one of the factors that have been implicated in the etiology of the cancer. It is therefore important to know the contribution of EBV genotype and strains that are associated with GC. In this study, we aimed at genotyping EBV and determining predominant strains in GC biopsies in Ghanaian patients. Genomic DNA was extracted from 55 GC biopsies (cases) and 63 normal gastric tissues (controls) were amplified by polymerase chain reaction (PCR) using specific primers for EBV detection and genotyping followed by PCR fragments sequencing. Epstein-Barr virus positivity were 67.3% and 49.2% in the GC and normal biopsies, respectively. Both cases and controls had the Mediterranean + strain of EBV. The predominant genotype of the virus in the GC cases was genotype-1 (75.7%) compared to 66.7% of genotype-2 among the control group. Infection was associated with GC in the study population (OR = 2.11, P = 0.014, 95% CI: 1.19 - 3.75), and EBV genotype-1 significantly increased the risk of GC (OR = 5.88, P < 0.0001, 95% CI: 3.18-10.88). The mean EBV load in the cases (3.507 ± 0.574) was significantly higher than in the controls (2.256 ± 0.756) (P < 0.0001). We conclude that EBV, especially Mediterranean + genotype-1, was the predominant strain in GC biopsies and GC type or progression is independent of the viral load.
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Affiliation(s)
- Jeffery Ampofo-Asiedu
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), Department of Biochemistry, Cell and Molecular Biology, University of Ghana, Accra 00233, Ghana
| | | | - Darkwah Owusua Afua Abrahams
- Department of Pathology, University of Ghana Medical School, University of Ghana and Korle-Bu Teaching Hospital, Accra 00233, Ghana
| | - Bernard Petershie
- Department of Pathology, University of Ghana Medical School, University of Ghana and Korle-Bu Teaching Hospital, Accra 00233, Ghana
| | - Osbourne Quaye
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), Department of Biochemistry, Cell and Molecular Biology, University of Ghana, Accra 00233, Ghana
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Wan Z, Chen Y, Hui J, Guo Y, Peng X, Wang M, Hu C, Xie Y, Su J, Huang Y, Xu X, Xu Y, Zhu B. Epstein-Barr virus variation in people living with human immunodeficiency virus in southeastern China. Virol J 2023; 20:107. [PMID: 37259131 DOI: 10.1186/s12985-023-02078-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 05/22/2023] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND Patients infected with HIV are at high risk of developing Epstein-Barr Virus (EBV)-related diseases. The genotype and viral biological behavior of EBV infection in patients with human immunodeficiency virus-1 (HIV) in China remain unclear. This study analyzed the characteristics of EBV in patients infected with HIV in southeastern China. METHODS A total of 162 HIV-infected patients and 52 patients without HIV were enrolled in this study. EBV viral load in blood was determined by fluorescence quantitative PCR. EBV typing was performed using saliva according to polymorphisms in the EBNA3C region. EBV LMP-1 carboxy terminus (C-ter) was sequenced, and compared with the epidemic strains in the world. RESULTS Among HIV infected patients, the EBV strain variant was mainly EBV-1, while EBV-2 had a higher viral load than EBV-1 (P = 0.001) and EBV-1/2 (P = 0.002). HIV infected patients had higher active virus replication. The EBV LMP-1 variants were mainly the China1 variant. HIV-infected patients had different nucleic acid positions of 30-bp deletion (del30) and had a higher incidence of high 33-bp tandem repeats (rep33) copies than non-HIV-infected patients. There was a difference in the mutations of EBV LMP-1 C-ter del30 and ins15 between HIV infected patients and the control group (P < 0.001). CONCLUSION In southeastern China, EBV in HIV-infected patients had higher active virus replication; EBV infection was mainly EBV-1, and EBV-2 infection has higher EBV virus load; hotspot mutations of LMP-1 C-ter were different between HIV-infected patients and non-HIV-infected patients. TRIAL REGISTRATION This study was approved by the ethics committee of the First Affiliated Hospital of Zhejiang University School of Medicine (Approval No. 2018764), and registered in Chinese Clinical Trial Registry on 3 June 2019 (ChiCTR, ChiCTR1900023600, http://www.chictr.org.cn/usercenter.aspx ).
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Affiliation(s)
- Zhikai Wan
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Ying Chen
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Jiangjin Hui
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Yongzheng Guo
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Xiaorong Peng
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Mengyan Wang
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Caiqin Hu
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Yirui Xie
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Junwei Su
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Ying Huang
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Xiaoke Xu
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Yan Xu
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China
| | - Biao Zhu
- The Department of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qing Chun Road, Hangzhou, 310006, China.
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Molecular Characterisation of Epstein-Barr Virus in Classical Hodgkin Lymphoma. Int J Mol Sci 2022; 23:ijms232415635. [PMID: 36555277 PMCID: PMC9778902 DOI: 10.3390/ijms232415635] [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: 10/31/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Hodgkin lymphomas (HLs) are a heterogeneous group of lymphoid neoplasia associated with Epstein-Barr virus (EBV) infection. EBV, considered to be an important etiological co-factor in approximately 1% of human malignancies, can be classified into two genotypes based on EBNA-2, EBNA-3A and EBNA-3C sequences, and into genetic variants based on the sequence variation of the gene coding for the LMP1 protein. Here, we present the results on the distribution of EBV genotypes 1 and 2 as well as LMP1 gene variants in 50 patients with EBV-positive classical HL selected from a cohort of 289 histologically verified cases collected over a 9-year period in a tertiary clinical center in the Southeast of Europe. The population-based sequencing of the EBNA-3C gene showed the exclusive presence of EBV genotype 1 in all cHL samples. The analysis of EBV LMP1 variant distribution showed a predominance of the wild-type strain B95-8 and the Mediterranean subtype with 30 bp deletion. These findings could contribute to the understanding of EBV immunobiology in cHL as well as to the development of a prophylactic and therapeutic vaccine.
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The roles of DNA methylation on the promotor of the Epstein–Barr virus (EBV) gene and the genome in patients with EBV-associated diseases. Appl Microbiol Biotechnol 2022; 106:4413-4426. [PMID: 35763069 PMCID: PMC9259528 DOI: 10.1007/s00253-022-12029-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 11/22/2022]
Abstract
Abstract Epstein–Barr virus (EBV) is an oncogenic virus that is closely associated with several malignant and lymphoproliferative diseases. Studies have shown that the typical characteristic of EBV-associated diseases is aberrant methylation of viral DNA and the host genome. EBV gene methylation helps EBV escape from immune monitoring and persist in host cells. EBV controls viral gene promoter methylation by hijacking host epigenetic machinery to regulate the expression of viral genes. EBV proteins also interact with host epigenetic regulatory factors to mediate the methylation of the host’s important tumour suppressor gene promoters, thereby participating in the occurrence of tumorigenesis. Since epigenetic modifications, including DNA methylation, are reversible in nature, drugs that target DNA methylation can be developed for epigenetic therapy against EBV-associated tumours. Various methylation modes in the host and EBV genomes may also be of diagnostic and prognostic value. This review summarizes the regulatory roles of DNA methylation on the promotor of EBV gene and host genome in EBV-associated diseases, proposes the application prospect of DNA methylation in early clinical diagnosis and treatment, and provides insight into methylation-based strategies against EBV-associated diseases. Key points • Methylation of both the host and EBV genomes plays an important role in EBV-associateddiseases. • The functions of methylation of the host and EBV genomes in the occurrence and development of EBV-associated diseases are diverse. • Methylation may be a therapeutic target or biomarker in EBV-associated diseases.
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Sarshari B, Mohebbi SR, Ravanshad M, Shahrokh S, Asadzadeh Aghdaei H. Sequence variations of Epstein-Barr virus LMP1 gene in gastric cancer and chronic gastritis isolates from Iranian patients. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH 2022; 15:225-231. [PMID: 36311962 PMCID: PMC9589126 DOI: 10.22037/ghfbb.v15i3.2578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/29/2022] [Indexed: 11/10/2022]
Abstract
Aim The current study aimed to investigate sequence variations in the C-terminus of latent membrane protein 1 (LMP1) in Epstein-Barr virus (EBV) isolates from Iranian patients with chronic gastritis or gastric cancer (GC). Background LMP1, an essential viral oncoprotein, is the critical element in the immortalization of B cells. It contains a small twenty-four amino acid cytoplasmic N-terminal region, six transmembrane segments, and a two hundred amino acid cytoplasmic C-terminal domain. Most LMP1-mediated signal transduction events are moderated by some functional parts of the cytoplasmic C-terminal domain. Methods Thirty-two EBV-positive biopsy tissues were obtained from patients with gastric cancer and patients with chronic gastritis. The C-terminal nucleotide sequences of LMP1 were amplified using nested-PCR and analyzed by DNA sequencing. Results Four to eight copies of the 11 repeat elements (codon 254-302) were observed in the carboxyl-terminal site of patients, but no relationship was found between the number of repeat sequences and disease status. The 30-bp deletion corresponding to codon 345-354 of the B95-8 strain was observed in 34% of isolates, and the remaining samples were non-deleted. In the gastric cancer group, a higher number of 33-bp repeats (≥5 repeats) was observed in 30-bp-deletion (100%) than in non-deleted (42%) isolates, and the difference was statistically significant. Analysis revealed that a gastritis isolate may be the result of recombination between Alaskan and China1 strains. Conclusion Overall, the current results showed no association between C-terminal sequence variations of LMP1 and malignant or non-malignant isolate origin.
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Affiliation(s)
- Behrang Sarshari
- Department of Medical Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Seyed Reza Mohebbi
- Research Center for Gastroenterology and Liver Diseases, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehrdad Ravanshad
- Department of Medical Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Shabnam Shahrokh
- Research Center for Gastroenterology and Liver Diseases, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Molecular Investigation of Human Cytomegalovirus and Epstein-Barr virus in Glioblastoma Brain Tumor: A Case-Control Study in Iran. IRANIAN BIOMEDICAL JOURNAL 2021; 25:426-33. [PMID: 34696577 DOI: 10.52547/ibj.25.6.426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background Glioblastoma multiforme is the most invasive and lethal form of brain cancer with unclear etiology. Our study aimed to investigate the molecular prevalence of human cytomegalovirus (HCMV) and Epstein-Barr virus (EBV) infections in patients with glioblastoma multiforme (GBM). Methods This case-control study was conducted on 42 FFPE brain tumor samples from GBM patients and 42 brain autopsies from subjects without neurological disorders. The presence of EBV and HCMV DNA was determined, using PCR and nested-PCR assays, respectively. Results HCMV DNA was detected in 3 out of 42 (7.1%) of GBM samples and was absent from the control group (p = 0.07). Importantly, EBV DNA was detected in 9 out of 42 (21.4%) brain tissue specimens of GBM subjects, but again in none of the control group (p = 0.001). Conclusion Our findings indicate that infection with EBV is associated with GBM.
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Abusalah MAH, Binti Hassan SA, Mat Lazim N, Abdullah B, Binti Wan Sohaimi WF, Husin A, Cheng KY, Yean CY. Design of InnoPrimers-Duplex Real-Time PCR for Detection and Treatment Response Prediction of EBV-Associated Nasopharyngeal Carcinoma Circulating Genetic Biomarker. Diagnostics (Basel) 2021; 11:diagnostics11101761. [PMID: 34679459 PMCID: PMC8534743 DOI: 10.3390/diagnostics11101761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/20/2021] [Accepted: 09/22/2021] [Indexed: 01/13/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is an epithelial tumor with high prevalence in southern China and Southeast Asia. NPC is well associated with the Epstein-Barr virus (EBV) latent membrane protein 1 (LMP1) 30 bp deletion by having its vital role in increased tumorigenicity and decreased immune recognition of EBV-related tumors. This study developed an InnoPrimers-duplex qPCR for detection of NPC blood circulating LMP1 30 bp deletion genetic biomarker for early diagnosis and treatment response prediction of NPC patients. The analytical and diagnostic evaluation and treatment response prediction were conducted using NPC patients’ whole blood (WB) and tissue samples and non-NPC cancer patients and healthy individuals’ WB samples. The assay was able to detect as low as 20 ag DNA per reaction (equivalent to 173 copies) with high specificity against broad reference microorganisms and archive NPC biopsy tissue and FNA samples. The diagnostic sensitivity and specificity were 83.3% and 100%, respectively. The 30 bp deletion genetic biomarker was found to be a good prognostic biomarker associated with overall clinical outcome of NPC WHO type III patients. This sensitive and specific assay can help clinicians in early diagnosis and treatment response prediction of NPC patients, which will enhance treatment outcome and lead to better life-saving.
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Affiliation(s)
- Mai Abdel Haleem Abusalah
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia; (M.A.H.A.); (S.A.B.H.)
| | - Siti Asma Binti Hassan
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia; (M.A.H.A.); (S.A.B.H.)
- Hospital USM, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia; (N.M.L.); (B.A.); (W.F.B.W.S.); (A.H.); (K.Y.C.)
| | - Norhafiza Mat Lazim
- Hospital USM, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia; (N.M.L.); (B.A.); (W.F.B.W.S.); (A.H.); (K.Y.C.)
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia
| | - Baharudin Abdullah
- Hospital USM, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia; (N.M.L.); (B.A.); (W.F.B.W.S.); (A.H.); (K.Y.C.)
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia
| | - Wan Fatihah Binti Wan Sohaimi
- Hospital USM, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia; (N.M.L.); (B.A.); (W.F.B.W.S.); (A.H.); (K.Y.C.)
- Department of Nuclear Medicine, Radiotherapy and Oncology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia
| | - Azlan Husin
- Hospital USM, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia; (N.M.L.); (B.A.); (W.F.B.W.S.); (A.H.); (K.Y.C.)
- Department of Internal Medicine, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia
| | - Kueh Yee Cheng
- Hospital USM, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia; (N.M.L.); (B.A.); (W.F.B.W.S.); (A.H.); (K.Y.C.)
- Biostatistics and Research Methodology Unit, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia
| | - Chan Yean Yean
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia; (M.A.H.A.); (S.A.B.H.)
- Hospital USM, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia; (N.M.L.); (B.A.); (W.F.B.W.S.); (A.H.); (K.Y.C.)
- Correspondence: or ; Tel.: +60-9-7676258 or +60-129011066
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Epstein-Barr virus molecular epidemiology and variants identification in head and neck squamous cell carcinoma. Eur J Cancer Prev 2021; 29:523-530. [PMID: 31738221 DOI: 10.1097/cej.0000000000000554] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Epstein-Barr virus (EBV) is known as one of the most widespread oncogenic viruses. Head and neck squamous cell carcinoma (HNSCC) is triggered by various risk factors. The aim of the present study was to determine the EBV infection rate, genotyping and variants frequency in HNSCC patients. In this cross-sectional study, 156 patients with HNSCC were enrolled. Formalin fixed paraffin embedded (FFPE) tissue samples were selected from hospitals affiliated to Iran University of Medical Sciences, Tehran, Iran. The EBV EBNA-3C, EBNA-1 and LMP-1 genes were amplified by PCR and then analyzed and confirmed by nucleotide sequencing. CLC work bench 5, MEGA6 and SPSS v.21 software were used for analysis the raw data. The mean age ± SD (years) of the all patients (n = 156) was 60.5 ± 12.6, in which of 121(77.6%) males it was 60.7 ± 11.9 and of 35 (22.4%) females it was 59.7 ± 14.9. Totally, 20 samples (12.8%) were found to be infected with EBV genome. The EBV genotypes 1 and 2 were calculated 90% (18/20) and 10% (2/20), respectively. vLMP-1 found in 40% (4/10) of all LMP-1 tested samples. Furthermore, the EBNA-1 predominant variants were P-ala followed by P-thr and also there were three P-ala-v2 sub variants. Statistics could not find any significant associations although there were some potentials. By our preliminary study in Iran, it revealed that EBV-1 is the predominant Epstein-Barr virus genotype in head and neck squamous cell carcinoma patients. vLMP-1 isolates showed lower survival rate than others. EBNA-1 variants had no significant association with any specific disease complication.
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EBV and the Pathogenesis of NK/T Cell Lymphoma. Cancers (Basel) 2021; 13:cancers13061414. [PMID: 33808787 PMCID: PMC8003370 DOI: 10.3390/cancers13061414] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/13/2021] [Accepted: 03/17/2021] [Indexed: 12/23/2022] Open
Abstract
Epstein-Barr virus (EBV) is a ubiquitous gamma herpes virus with tropism for B cells. EBV is linked to the pathogenesis of B cell, T cell and NK cell lymphoproliferations, with extranodal NK/T cell lymphoma, nasal type (ENKTCL) being the prototype of an EBV-driven lymphoma. ENKTCL is an aggressive neoplasm, particularly widespread in East Asia and the native population of Latin America, which suggests a strong genetic predisposition. The link between ENKTCL and different populations has been partially explored. EBV genome sequencing analysis recognized two types of strains and identified variants of the latent membrane protein 1 (LMP1), which revealed different oncogenic potential. In general, most ENKTCL patients carry EBV type A with LMP1 wild type, although the LMP1 variant with a 30 base pair deletion is also common, especially in the EBV type B, where it is necessary for oncogenic transformation. Contemporary high-throughput mutational analyses have discovered recurrent gene mutations leading to activation of the JAK-STAT pathway, and mutations in other genes such as BCOR, DDX3X and TP53. The genomic landscape in ENKTCL highlights mechanisms of lymphomagenesis, such as immune response evasion, secondary to alterations in signaling pathways or epigenetics that directly or indirectly interfere with oncogenes or tumor suppressor genes. This overview discusses the most important findings of EBV pathogenesis and genetics in ENKTCL.
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Karimzadeh M, Tabibzadeh A, Moghoofei M, Abbasi S, Sadri Nahand J, Sadeghii F, Karbalaie Niya MH, Keyvani H, Bokharaei-Salim F, Esghaei M, Esghaei M. As Evidence-Based Tumorigenic Role of Epstein-Barr Virus miR-BART1-3p in Neurological Tumors. Asian Pac J Cancer Prev 2021; 22:257-266. [PMID: 33507707 PMCID: PMC8184183 DOI: 10.31557/apjcp.2021.22.1.257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Central nervous system tumors are a diverse group of tumors that account for 2% of all adult cancers and 17% of childhood malignancies. Several internal and external risk factors are involved in the development of this cancer such as viral infections. The aim of this study was to the determination of the EBV infection frequency and the expression level of miR-122 and miR-BART in CNS tumors samples. METHODS One hundred and thirty-eight fresh tissue sample (106 case and 32 control) was collected from CNS specimens. The presence of Epstein-Barr virus (EBV) DNA was examined by PCR assay and the expression level of miR-122 and miR-BART were evaluated by using real-time PCR assay in CNS tissue samples. RESULTS EBV DNA was detected in 17% (18 of 106) of tumors tissue samples and 6.4% (2 of 32) of control samples. according to results, there was a significant relationship between the presence of EBV-DNA with CNS tumors. Additionally, the expression level of miR-122 was significantly downregulated in the EBV-positive sample compared to that of the EBV-negative sample. Also, the level of EBV-BART1-3p expression was significantly higher in EBV-positive tumors samples than EBV-positive normal samples. CONCLUSION The results of this study suggest that the EBV could change the condition of cancer cells by altering the expression of miR-122 and EBV-BART1-3p and maybe contribute to the development of cancer cells. However, the role of viral infections in CNS cancer requires further studies. <br />.
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Affiliation(s)
- Mohammad Karimzadeh
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Tabibzadeh
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohsen Moghoofei
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Department of Microbiology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Saeedeh Abbasi
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Javid Sadri Nahand
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farzin Sadeghii
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Hossin Keyvani
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farah Bokharaei-Salim
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Laboratory of National Center, Vice Chancellor for Health, Iran University of Medical Sciences, Tehran, Iran
| | - Moein Esghaei
- Cognitive Neuroscience Laboratory, German Primate Center - Leibniz Institute for Primate Research, Göttingen, Germany
| | - Maryam Esghaei
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Tabibzadeh A, Karbalaie Niya MH, Esghaei M, Bokharaei-Salim F, Ataei-Pirkooh A, Kiani SJ, Monavari SHR. Molecular Epidemiology of Epstein-Barr virus (EBV) in Patients with Hematologic Malignancies. Asian Pac J Cancer Prev 2020; 21:693-698. [PMID: 32212795 PMCID: PMC7437315 DOI: 10.31557/apjcp.2020.21.3.693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Indexed: 01/08/2023] Open
Abstract
Background: Epstein-Barr virus (EBV) is associated with different malignant diseases, such as Hodgkin lymphoma (HL) and lymphoproliferative disorders. Patients with hematologic malignancies by variable severity could be suspected for the infection with different types of this virus. This preliminary study reported the genotyping and related viral load of Epstein-Barr virus in Iranian patients with hematologic malignancies for estimation of possible factors affecting malignancy. Methods: Peripheral blood mononuclear cells (PBMC) of HL (n=20), NHL (n=29), acute lymphocytic leukemia (ALL) (n=18) and chronic lymphocytic leukemia (CLL) (n=12) were obtained. After DNA extraction, a nested-PCR and a conventional-PCR targeting EBNA-2 and EBNA-3C genes were performed. A real-time PCR assay for viral load quantitation carried out. Standard curve analysis used for evaluation of amplification specificity. Results: Of 79 included patients, 34 (43%) were EBV positive. There were 23.5% (8/34), 38.2% (13/34), 23.5% (8/34), 14.8% (5/34) in HL, NHL, ALL and CLL groups, respectively. Also, the main genotype was genotype I (91.2%) which it follows by 8.8% (3/34) genotype II. The real-time PCR assay showed the mean viral load ± std. deviation was 2.75×105 ± 1.202×106 copies/μg DNA and the higher viral load was seen in NHL patients. Conclusion: This preliminary investigation in Iran shows that the main EBV genotype into our region probably is genotype I (91.2%) which it is similar to others. We could not find any statistically significant association between the virus infection and viral load with any specific disease and patients’ demographic data.
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Affiliation(s)
- Alireza Tabibzadeh
- Department of Virology, Iran University of Medical Sciences, Tehran, Iran
| | | | - Maryam Esghaei
- Department of Virology, Iran University of Medical Sciences, Tehran, Iran
| | | | | | - Seyed Jalal Kiani
- Department of Virology, Iran University of Medical Sciences, Tehran, Iran
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Sullivan K, Isabel S, Khodai-Booran N, Paton TA, Abdulnoor M, Dipchand AI, Hébert D, Ng VL, Allen UD. Epstein-Barr virus latent gene EBNA-1 genetic diversity among transplant patients compared with patients with infectious mononucleosis. Clin Transplant 2019; 33:e13504. [PMID: 30790353 DOI: 10.1111/ctr.13504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 01/26/2019] [Accepted: 02/01/2019] [Indexed: 11/30/2022]
Abstract
INTRODUCTION As a step toward evaluating the association between Epstein-Barr virus genetic diversity and post-transplant lymphoproliferative disorder (PTLD), we conducted a preliminary study to compare the genetic diversity of the EBNA-1 gene among transplant patients and patients with infectious mononucleosis (IM). METHODS We sequenced the EBNA-1 gene in blood samples from study subjects using Sanger methodology. The sequences were aligned with a reference strain and compared with publicly available sequences. RESULTS We analyzed 33 study samples and 25 publicly available sequences along with the reference strain B95-8. The evaluable samples were from sixteen patients with IM (median age 14.0 years, range 2-24) and 17 transplant patients. There were six children without PTLD (median age 1.93 years, range 0.79-7.46) and 11 who developed PTLD (median age 5.67 years, range 0.96-17.45). A predominant EBNA-1 variant (P-thr) was identified across the study groups. Differences were observed between the samples from the IM patients compared with the transplant samples. CONCLUSION The predominant EBNA-1 strain is in contrast to reports of the predominant strain in North America. The results suggest differences between the EBNA-1 strains among the study groups. Further studies will examine the relationship between EBNA-1 strains and PTLD occurrence and outcomes.
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Affiliation(s)
- Katie Sullivan
- Division of Infectious Diseases, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Sandra Isabel
- Division of Infectious Diseases, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Nasser Khodai-Booran
- Division of Infectious Diseases, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Tara A Paton
- The Research Institute, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Mariana Abdulnoor
- Division of Infectious Diseases, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Anne I Dipchand
- The Transplant and Regenerative Medicine Centre, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Diane Hébert
- The Transplant and Regenerative Medicine Centre, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Vicky L Ng
- The Transplant and Regenerative Medicine Centre, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Upton D Allen
- Division of Infectious Diseases, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.,The Transplant and Regenerative Medicine Centre, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
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Kafita D, Kaile T, Malyangu E, Tembo R, Zulu E, Chisanga C, Kalonda A, Samutela M, Polepole P, Kwenda G. Evidence of EBV infection in lymphomas diagnosed in Lusaka, Zambia. Pan Afr Med J 2018; 29:181. [PMID: 30061959 PMCID: PMC6061862 DOI: 10.11604/pamj.2018.29.181.11847] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 03/02/2018] [Indexed: 01/26/2023] Open
Abstract
INTRODUCTION Epstein-Barr virus (EBV) is a ubiquitous virus that infects more than 90% of the world's population, and is implicated in lymphoma pathogenesis. However, in Zambia during the diagnosis of these lymphomas, the association of the virus with the lymphomas is not established. Since most patients with lymphomas have poor prognosis, the identification of the virus within the lymphoma lesion will allow for more targeted therapy. The aim of this study was to provide evidence of the presence of the EBV in lymphomas diagnosed at the University Teaching Hospital (UTH) in Lusaka, Zambia. METHODS One hundred and fifty archival formalin-fixed paraffin embedded suspected lymphoma tissues stored over a 4-year period in the Histopathology Laboratory at the UTH in Lusaka, Zambia, were analysed. Histological methods were used to identify the lymphomas, and the virus was detected using Polymerase Chain Reaction (PCR). Subtyping of the virus was achieved through DNA sequencing of the EBNA-2 region of the viral genome. Chi square or fisher's exact test was used to evaluate the association between EBV status, type of lymphoma and gender. RESULTS The majority of the lymphomas identified were non-Hodgkin's lymphoma (NHL) (80%) followed by Hodgkin's lymphoma (HL) (20%). EBV was detected in 51.8% of the cases, 54.5% of which were associated with NHL cases, while 40.9% associated with HL cases. The predominant subtype of the virus in both types of lymphomas was subtype 1. One of the lymphoma cases harboured both subtype 1 and 2 of the virus. CONCLUSION This study showed that EBV is closely associated with lymphomas. Therefore, providing evidence of the presence of the virus in lymphoma tissues will aid in targeted therapy. To our knowledge this is the first time such data has been generated in Zambia.
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Affiliation(s)
- Doris Kafita
- Department of Biomedical Sciences, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Trevor Kaile
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Evans Malyangu
- Department of Pathology, Maina Soko Military Hospital, Lusaka, Zambia
| | - Rabecca Tembo
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Ephraim Zulu
- Department of Biomedical Sciences, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Chrispin Chisanga
- Department of Biomedical Sciences, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Annie Kalonda
- Department of Biomedical Sciences, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Mulemba Samutela
- Department of Biomedical Sciences, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Pascal Polepole
- Department of Biomedical Sciences, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Geoffrey Kwenda
- Department of Biomedical Sciences, School of Medicine, University of Zambia, Lusaka, Zambia
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Fołtyn S, Strycharz-Dudziak M, Drop B, Boguszewska A, Polz-Dacewicz M. Serum EBV antibodies and LMP-1 in Polish patients with oropharyngeal and laryngeal cancer. Infect Agent Cancer 2017; 12:31. [PMID: 28572837 PMCID: PMC5450389 DOI: 10.1186/s13027-017-0141-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 05/19/2017] [Indexed: 12/15/2022] Open
Abstract
Background The association between Epstein-Barr virus (EBV) and the development of head and neck cancer was reported by many researchers. The aim of the present study was to detect EBV DNA and EBV antibodies in 110 Polish patients with oropharyngeal and laryngeal cancer compared to 40 healthy individuals. Methods Frozen tumor tissue fragments were tested using nested PCR assay for EBV DNA detection. Sera from all individuals were investigated using ELISA tests to detect the presence of VCA IgM and IgG, EBNA IgG, EA IgG. Results EBV DNA was detected in 52.7% of the patients (25% in controls). EBVCA were detected in 94.5%, EBNA in 96.4% and EA in 94.5% of patients. The significantly higher level of EA in the patients suggests EBV reactivation. The majority of patients (83%) were infected with wild-type EBV. Conclusion Our study showed that this variant seems to be associated with oropharyngeal and laryngeal cancer in the Polish population.
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Affiliation(s)
- Sylwia Fołtyn
- Department of Virology, Medical University of Lublin, Lublin, Poland
| | | | - Bartłomiej Drop
- Chair and Department of Public Health, Medical University of Lublin, Lublin, Poland
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17
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Gantuz M, Lorenzetti MA, Chabay PA, Preciado MV. A novel recombinant variant of latent membrane protein 1 from Epstein Barr virus in Argentina denotes phylogeographical association. PLoS One 2017; 12:e0174221. [PMID: 28328987 PMCID: PMC5362222 DOI: 10.1371/journal.pone.0174221] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 03/05/2017] [Indexed: 12/15/2022] Open
Abstract
Epstein Barr virus (EBV) infection in Argentina occurs at an early age and occasionally develops infectious mononucleosis (IM). EBV is also related with lymphomas. LMP1, the viral oncoprotein is polymorphic and is used to define viral variants.
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Affiliation(s)
- Magdalena Gantuz
- Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP), CONICET-GCBA, Laboratorio de Biología Molecular, División Patología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Mario Alejandro Lorenzetti
- Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP), CONICET-GCBA, Laboratorio de Biología Molecular, División Patología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Paola Andrea Chabay
- Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP), CONICET-GCBA, Laboratorio de Biología Molecular, División Patología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
| | - María Victoria Preciado
- Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP), CONICET-GCBA, Laboratorio de Biología Molecular, División Patología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
- * E-mail:
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Neves M, Marinho-Dias J, Ribeiro J, Sousa H. Epstein-Barr virus strains and variations: Geographic or disease-specific variants? J Med Virol 2016; 89:373-387. [PMID: 27430663 DOI: 10.1002/jmv.24633] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2016] [Indexed: 12/24/2022]
Abstract
The Epstein-Barr Virus (EBV) is associated with the development of several diseases, including infectious mononucleosis (IM), Burkitt's Lymphoma (BL), Nasopharyngeal Carcinoma, and other neoplasias. The publication of EBV genome 1984 led to several studies regarding the identification of different viral strains. Currently, EBV is divided into EBV type 1 (B95-8 strain) and EBV type 2 (AG876 strain), also known as type A and type B, which have been distinguished based upon genetic differences in the Epstein-Barr nuclear antigens (EBNAs) sequence. Several other EBV strains have been described in the past 10 years considering variations on EBV genome, and many have attempted to clarify if these variations are ethnic or geographically correlated, or if they are disease related. Indeed, there is an increasing interest to describe possible specific disease associations, with emphasis on different malignancies. These studies aim to clarify if these variations are ethnic or geographically correlated, or if they are disease related, thus being important to characterize the epidemiologic genetic distribution of EBV strains on our population. Here, we review the current knowledge on the different EBV strains and variants and its association with different diseases. J. Med. Virol. 89:373-387, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Marco Neves
- Molecular Oncology and Viral Pathology Group, Research Centre (CI-IPOP), Porto, Portugal.,Faculty of Medicine of University of Porto (FMUP), Porto, Portugal
| | - Joana Marinho-Dias
- Molecular Oncology and Viral Pathology Group, Research Centre (CI-IPOP), Porto, Portugal.,Virology Service, Portuguese Oncology Institute of Porto, Porto, Portugal.,Abel Salazar Institute for the Biomedical Sciences of University of Porto (ICBAS-UP), Porto, Portugal
| | - Joana Ribeiro
- Molecular Oncology and Viral Pathology Group, Research Centre (CI-IPOP), Porto, Portugal.,Faculty of Medicine of University of Porto (FMUP), Porto, Portugal.,Virology Service, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - Hugo Sousa
- Molecular Oncology and Viral Pathology Group, Research Centre (CI-IPOP), Porto, Portugal.,Virology Service, Portuguese Oncology Institute of Porto, Porto, Portugal
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Banko A, Lazarevic I, Stevanovic G, Cirkovic A, Karalic D, Cupic M, Banko B, Milovanovic J, Jovanovic T. Analysis of the Variability of Epstein-Barr Virus Genes in Infectious Mononucleosis: Investigation of the Potential Correlation with Biochemical Parameters of Hepatic Involvement. J Med Biochem 2016; 35:337-346. [PMID: 28356886 PMCID: PMC5346813 DOI: 10.1515/jomb-2015-0021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 11/22/2015] [Indexed: 12/15/2022] Open
Abstract
Background Primary Epstein-Barr virus (EBV) infection is usually asymptomatic, although at times it results in the benign lymphoproliferative disease, infectious mononucleosis (IM), during which almost half of patients develop hepatitis. The aims of the present study are to evaluate polymorphisms of EBV genes circulating in IM isolates from this geographic region and to investigate the correlation of viral sequence patterns with the available IM biochemical parameters. Methods The study included plasma samples from 128 IM patients. The genes EBNA2, LMP1, and EBNA1 were amplified using nested-PCR. EBNA2 genotyping was performed by visualization of PCR products using gel electrophoresis. Investigation of LMP1 and EBNA1 included sequence, phylogenetic, and statistical analyses. Results The presence of EBV DNA in plasma samples showed correlation with patients’ necessity for hospitalization (p=0.034). The majority of EBV isolates was genotype 1. LMP1 variability showed 4 known variants, and two new deletions (27-bp and 147-bp). Of the 3 analyzed attributes of LMP1 isolates, the number of 33-bp repeats less than the reference 4.5 was the only one that absolutely correlated with the elevated levels of transaminases. EBNA1 variability was presented by prototype subtypes. A particular combination of EBNA2, LMP1, and EBNA1 polymorphisms, deleted LMP1/P-thr and non-deleted LMP1/P-ala, as well as genotype 1/ 4.5 33-bp LMP1 repeats or genotype 2/ 4.5 33-bp LMP1 repeats showed correlation with elevated AST (aspartate aminotransferase) and ALT (alanine transaminase). Conclusions This is the first study which identified the association between EBV variability and biochemical parameters in IM patients. These results showed a possibility for the identification of hepatic related diagnostic EBV markers.
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Affiliation(s)
- Ana Banko
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Serbia
| | - Ivana Lazarevic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Serbia
| | - Goran Stevanovic
- Clinics of Infectious and Tropical Diseases, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Serbia
| | - Andja Cirkovic
- Institute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Serbia
| | - Danijela Karalic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Serbia
| | - Maja Cupic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Serbia
| | - Bojan Banko
- Center for Radiology and Magnetic Resonance Imaging, Clinical Center of Serbia, Belgrade, Serbia
| | - Jovica Milovanovic
- Clinic of Otorhinolaryngology and Maxillofacial Surgery, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Serbia
| | - Tanja Jovanovic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Serbia
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Banko AV, Lazarevic IB, Folic MM, Djukic VB, Cirkovic AM, Karalic DZ, Cupic MD, Jovanovic TP. Characterization of the Variability of Epstein-Barr Virus Genes in Nasopharyngeal Biopsies: Potential Predictors for Carcinoma Progression. PLoS One 2016; 11:e0153498. [PMID: 27071030 PMCID: PMC4829223 DOI: 10.1371/journal.pone.0153498] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 03/17/2016] [Indexed: 12/15/2022] Open
Abstract
Epstein-Barr virus (EBV) infection is a significant factor in the pathogenesis of nasopharyngeal carcinoma, especially in the undifferentiated carcinoma of nasopharyngeal type (UCNT, World Health Organization type III), which is the dominant histopathological type in high-risk areas. The major EBV oncogene is latent membrane protein 1 (LMP1). LMP1 gene shows variability with different tumorigenic and immunogenic potentials. EBV nuclear antigen 1 (EBNA1) regulates progression of EBV-related tumors; however, the influence of EBNA1 sequence variability on tumor pathogenesis is controversial. The aims of this study were to characterize polymorphisms of EBV genes in non-endemic nasopharyngeal carcinoma biopsies and to investigate potential sequence patterns that correlate with the clinical presentation of nasopharyngeal carcinoma. In total, 116 tumor biopsies of undifferentiated carcinoma of nasopharyngeal type (UCNT), collected from 2008 to 2014, were evaluated in this study. The genes EBNA2, LMP1, and EBNA1 were amplified using nested-PCR. EBNA2 genotyping was performed by visualization of PCR products using gel electrophoresis. Investigation of LMP1 and EBNA1 included sequence, phylogenetic, and statistical analyses. The presence of EBV DNA was significantly distributed between TNM stages. LMP1 variability showed six variants, with the detection of the first China1 and North Carolina variants in European nasopharyngeal carcinoma biopsies. Newly discovered variants Srb1 and Srb2 were UCNT-specific LMP1 polymorphisms. The B95-8 and North Carolina variants are possible predictors for favorable TNM stages. In contrast, deletions in LMP1 are possible risk factors for the most disfavorable TNM stage, independent of EBNA2 or EBNA1 variability. A newly discovered EBNA1 subvariant, P-thr-sv-5, could be a potential diagnostic marker, as it represented a UCNT-specific EBNA1 subvariant. A particular combination of EBNA2, LMP1, and EBNA1 polymorphisms, type 1/Med/P-thr was identified as a possible risk factor for TNM stage IVB or progression to the N3 stage.
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Affiliation(s)
- Ana V. Banko
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- * E-mail:
| | - Ivana B. Lazarevic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Miljan M. Folic
- Clinic of Otorhinolaryngology and Maxillofacial Surgery, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Vojko B. Djukic
- Clinic of Otorhinolaryngology and Maxillofacial Surgery, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Andja M. Cirkovic
- Institute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Danijela Z. Karalic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Maja D. Cupic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tanja P. Jovanovic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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21
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Sun L, Zhao Z, Liu S, Liu X, Sun Z, Luo B. Sequence Variation Analysis of Epstein-Barr Virus Nuclear Antigen 1 Gene in the Virus Associated Lymphomas of Northern China. PLoS One 2015; 10:e0140529. [PMID: 26460969 PMCID: PMC4604123 DOI: 10.1371/journal.pone.0140529] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 09/28/2015] [Indexed: 12/27/2022] Open
Abstract
Epstein-Barr virus (EBV) nuclear antigen 1 (EBNA1) is the only viral protein expressed in all EBV-positive tumors as it is essential for the maintenance, replication and transcription of the virus genome. According to the polymorphism of residue 487 in EBNA1 gene, EBV isolates can be classified into five subtypes: P-ala, P-thr, V-val, V-leu and V-pro. Whether these EBNA1 subtypes contribute to different tissue tropism of EBV and are consequently associated with certain malignancies remain to be determined. To elucidate the relationship, one hundred and ten EBV-positive lymphoma tissues of different types from Northern China, a non-NPC endemic area, were tested for the five subtypes by nested-PCR and DNA sequencing. In addition, EBV type 1 and type 2 classification was typed by using standard PCR assays across type-specific regions of the EBNA3C genes. Four EBNA1 subtypes were identified: V-val (68.2%, 75/110), P-thrV (15.5%, 17/110), V-leuV (3.6%, 4/110) and P-ala (10.9%, 12/110). The distribution of the EBNA1 subtypes in the four lymphoma groups was not significantly different (p = 0.075), neither was that of the EBV type 1/type 2 (p = 0.089). Compared with the previous data of gastric carcinoma (GC), nasopharyngeal carcinoma (NPC) and throat washing (TW) from healthy donors, the distribution of EBNA1 subtypes in lymphoma differed significantly (p = 0.016), with a little higher frequency of P-ala subtype. The EBV type distribution between lymphoma and the other three groups was significantly different (p = 0.000, p = 0.000, p = 0.001, respectively). The proportion of type 1 and type 2 mixed infections was higher in lymphoma than that in GC, NPC and TW. In lymphomas, the distribution of EBNA1 subtypes in the three EBV types was not significantly different (p = 0.546). These data suggested that the variation patterns of EBNA1 gene may be geographic-associated rather than tumor-specific and the role of EBNA1 gene variations in tumorigenesis needs more extensive and deep explorations.
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Affiliation(s)
- Lingling Sun
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Medical Microbiology, Qingdao University Medical College, Qingdao, China
| | - Zhenzhen Zhao
- Department of Medical Microbiology, Qingdao University Medical College, Qingdao, China
| | - Song Liu
- Department of Medical Microbiology, Qingdao University Medical College, Qingdao, China
| | - Xia Liu
- Department of Medical Microbiology, Qingdao University Medical College, Qingdao, China
| | - Zhifu Sun
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Bing Luo
- Department of Medical Microbiology, Qingdao University Medical College, Qingdao, China
- * E-mail:
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22
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Neves M, Marinho-Dias J, Ribeiro J, Esteves M, Maltez E, Baldaque I, Breda E, Monteiro E, Medeiros R, Sousa H. Characterization of Epstein-Barr virus strains and LMP1-deletion variants in Portugal. J Med Virol 2015; 87:1382-8. [PMID: 25879824 DOI: 10.1002/jmv.24190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2015] [Indexed: 11/08/2022]
Abstract
Variations in the genome sequence of Epstein-Barr Virus (EBV) are thought to lead to differential interaction with host cells, immune evasion, and transformation. The discussion regarding EBV strains as having a geographic or disease-association has been increasing and the majority of studies are performed in Asiatic populations. We developed a case-control study with 139 individuals, including 96 subjects with different malignancies and 43 healthy individuals, from the North region of Portugal. We have used PCR protocols for the characterization of EBV strains (type A or B) based on EBNA3C genome variation and for the LMP1 30bp-deletion variants (wt-LMP1 or del-LMP1). Our study showed that type A is the most prevalent in our population (100% of healthy controls, 96.9% of aHSCT patients, 90.8% of HNSCC patients, and 94.9% of NPC patients) and that type B was significantly associated with NPC (P = 0.019; RR = 8.90). Regarding the LMP1 30bp-deletion, we found a similar distribution of both wt- and del-LMP1 variants in controls and dispare results in cases: del-LMP1 was more frequent in aHSCT and HNSCC patients (64.7% and 63.2%, respectively) and wt-LMP1 in NPC patients (100%). In fact, the study reveals that wt-LPM1 was significantly associated with NPC (P < 0.001; RR = 18.4). Hence, our study showed that EBV type B and wt-LMP1 variant seem to be associated with NPC in our population, with a clear disease-association for wt-LMP1. These results contribute for the knowledge of EBV genetic diversity among Caucasian populations.
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Affiliation(s)
- Marco Neves
- Molecular Oncology and Viral Pathology Group, Portuguese Institute of Oncology of Porto, Porto, Portugal.,Department of Biology, University of Aveiro, Campus de Santiago, Aveiro, Portugal
| | - Joana Marinho-Dias
- Molecular Oncology and Viral Pathology Group, Portuguese Institute of Oncology of Porto, Porto, Portugal.,Virology Service, Portuguese Institute of Oncology of Porto, Porto, Portugal
| | - Joana Ribeiro
- Molecular Oncology and Viral Pathology Group, Portuguese Institute of Oncology of Porto, Porto, Portugal.,Virology Service, Portuguese Institute of Oncology of Porto, Porto, Portugal.,Faculty of Medicine of University of Porto, Porto, Portugal
| | - Marlene Esteves
- Molecular Oncology and Viral Pathology Group, Portuguese Institute of Oncology of Porto, Porto, Portugal
| | - Elsa Maltez
- Molecular Oncology and Viral Pathology Group, Portuguese Institute of Oncology of Porto, Porto, Portugal
| | - Inês Baldaque
- Virology Service, Portuguese Institute of Oncology of Porto, Porto, Portugal
| | - Eduardo Breda
- Molecular Oncology and Viral Pathology Group, Portuguese Institute of Oncology of Porto, Porto, Portugal.,Otorhinolaryngology Department, Portuguese Institute of Oncology of Porto, Porto, Portugal
| | - Eurico Monteiro
- Molecular Oncology and Viral Pathology Group, Portuguese Institute of Oncology of Porto, Porto, Portugal.,Otorhinolaryngology Department, Portuguese Institute of Oncology of Porto, Porto, Portugal
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, Portuguese Institute of Oncology of Porto, Porto, Portugal.,Virology Service, Portuguese Institute of Oncology of Porto, Porto, Portugal.,Abel Salazar Institute for the Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal.,Research Department, Portuguese League Against Cancer (Liga Portuguesa Contra o Cancro - Núcleo Regional do Norte), Porto, Portugal
| | - Hugo Sousa
- Molecular Oncology and Viral Pathology Group, Portuguese Institute of Oncology of Porto, Porto, Portugal.,Virology Service, Portuguese Institute of Oncology of Porto, Porto, Portugal.,Faculty of Medicine of University of Porto, Porto, Portugal
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Abstract
What is wild-type Epstein-Barr virus and are there genetic differences in EBV strains that contribute to some of the EBV-associated diseases? Recent progress in DNA sequencing has resulted in many new Epstein-Barr virus (EBV) genome sequences becoming available. EBV isolates worldwide can be grouped into type 1 and type 2, a classification based on the EBNA2 gene sequence. Type 1 transforms human B cells into lymphoblastoid cell lines much more efficiently than type 2 EBV and molecular mechanisms that may account for this difference in cell transformation are now becoming understood. Study of geographic variation of EBV strains independent of the type 1/type 2 classification and systematic investigation of the relationship between viral strains, infection and disease are now becoming possible. So we should consider more directly whether viral sequence variation might play a role in the incidence of some EBV-associated diseases.
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Affiliation(s)
- Paul J Farrell
- Section of Virology, Department of Medicine, Imperial College, St Mary's Campus, Norfolk Place, London, W2 1PG, UK.
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24
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Gantuz M, Lorenzetti MA, Altcheh J, De Matteo E, Moscatelli G, Moroni S, Chabay PA, Preciado MV. LMP1 promoter sequence analysis in Epstein Barr virus pediatric infection reveals preferential circulation of B95.8 related variants in Argentina. INFECTION GENETICS AND EVOLUTION 2013; 14:275-81. [DOI: 10.1016/j.meegid.2012.12.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 12/19/2012] [Accepted: 12/21/2012] [Indexed: 12/12/2022]
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25
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Epstein-barr virus sequence variation-biology and disease. Pathogens 2012; 1:156-74. [PMID: 25436768 PMCID: PMC4235690 DOI: 10.3390/pathogens1020156] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 10/16/2012] [Accepted: 10/30/2012] [Indexed: 12/12/2022] Open
Abstract
Some key questions in Epstein-Barr virus (EBV) biology center on whether naturally occurring sequence differences in the virus affect infection or EBV associated diseases. Understanding the pattern of EBV sequence variation is also important for possible development of EBV vaccines. At present EBV isolates worldwide can be grouped into Type 1 and Type 2, a classification based on the EBNA2 gene sequence. Type 1 EBV is the most prevalent worldwide but Type 2 is common in parts of Africa. Type 1 transforms human B cells into lymphoblastoid cell lines much more efficiently than Type 2 EBV. Molecular mechanisms that may account for this difference in cell transformation are now becoming clearer. Advances in sequencing technology will greatly increase the amount of whole EBV genome data for EBV isolated from different parts of the world. Study of regional variation of EBV strains independent of the Type 1/Type 2 classification and systematic investigation of the relationship between viral strains, infection and disease will become possible. The recent discovery that specific mutation of the EBV EBNA3B gene may be linked to development of diffuse large B cell lymphoma illustrates the importance that mutations in the virus genome may have in infection and human disease.
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