scholarly journals Plasma Epstein-Barr virus DNA and risk of nasopharyngeal carcinoma in a prospective seropositive population

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Wen-Jie Chen ◽  
Wen-Na Xu ◽  
Hai-Yun Wang ◽  
Xiao-Xia Chen ◽  
Xue-Qi Li ◽  
...  
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Epstein Barr Virus ◽  
Screening Program ◽  
Southern China ◽  
Incidence Rates ◽  
Cox Proportional Hazards ◽  
Barr Virus ◽  
Ebv Dna ◽  
Epstein Barr

Abstract Objective Plasma Epstein-Barr virus (EBV) DNA is considered a biomarker for nasopharyngeal carcinoma (NPC). However, its long-term role in NPC development is unclear. Materials and methods A total of 1363 participants seropositive for EBV VCA-IgA and EBNA1-IgA in a community-based NPC screening program in southern China were tested for plasma EBV DNA levels by real-time qPCR between 2008 and 2015. New NPC cases were confirmed by active follow-up approach and linkage to local cancer registry through the end of 2016. Cox proportional hazards regression analysis was performed to calculate the hazard ratios (HRs) for NPC risk with plasma EBV DNA. Results Thirty patients were newly diagnosed during a median 7.5 years follow-up. NPC incidence increased with the plasma EBV DNA load ranging from 281.46 to 10,074.47 per 100,000 person-years in participants with undetectable and ≥ 1000 copies/ml levels; the corresponding cumulative incidence rates were 1.73 and 50%. Furthermore, plasma EBV DNA loads conferred an independent risk for NPC development after adjustment for other risk factors, with HRs of 7.63 for > 3–999 copies/ml and 39.79 for ≥1000 copies/ml. However, the HRs decreased gradually after excluding NPC cases detected in the first 2 to 3 years and became statistically nonsignificant by excluding cases detected during the first 4 years. Conclusion Elevated plasma EBV DNA can predict NPC risk over 3 years. Monitoring plasma EBV DNA can be used as a complementary approach to EBV serological antibody-based screening for NPC.

scholarly journals Circulating Plasma Epstein–Barr virus DNA Load During the Follow-up Periods Predicts Recurrence and Metastasis in Nasopharyngeal Carcinoma

2020 ◽  
Author(s):  
Sha-sha He ◽  
Yun-ying Yang ◽  
Yan Wang ◽  
Yu-feng Ren ◽  
Cheng-tao Wang ◽  
...  
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Epstein Barr Virus ◽  
Dynamic Changes ◽  
Barr Virus ◽  
Kaplan Meier ◽  
Ebv Dna ◽  
Epstein Barr ◽  
Landmark Analyses ◽  
Predictive Indicator

Abstract PURPOSE Epstein Barr virus DNA (EBV DNA) load has been identified as a prognostic factor in nasopharyngeal carcinoma, while the dynamic changes in the long period have not been explored. In this study, we evaluated EBV DNA kinetics and its role in the survival. METHODS We conducted a retrospective review of 900 NPC patients. Plasma EBV DNA levels were measured at various time points after treatment. The correlations of EBV kinetics with recurrence and metastasis were analyzed. After stratifying patients according to the EBV results, survival was compared using Kaplan–Meier estimates. 12 and 24-month landmark analyses for OS data were performed according to the EBV groups. RESULTS Patients with post-EBV < 2,500 copies/mL achieved better survival than the higher ones. Furthermore, patients with continuously elevated EBV DNA had significantly poorer OS (HR: 2.542, 95%CI: 2.077–3.111, P < 0.001), DMFS (HR: 2.970, 95%CI: 2.392–3.687, P < 0.001), LRFS (HR: 1.699, 95%CI: 1.072–2.692, P = 0.013), and PFS (HR:2.535, 95%CI: 1.987–3.233, P < 0.001) than patients with continuously normal EBV or those with elevated levels at any time-point. The 5-year OS with elevated EBV was lower than the remission group by the 12 and 24-month landmark analysis. CONCLUSIONS Elevated EBV DNA after treatment was a better predictive indicator of survival than the baseline concentrations. Furthermore, continuously elevated EBV DNA after treatment indicated recurrence, metastasis and unfavorable prognosis for NPC. In addition, EBV DNA was predictable no matter how long the follow-up time.

Use of Plasma Epstein-Barr virus DNA Monitoring as a Tumor Marker in follow-up of Patients with Nasopharyngeal Carcinoma: Preliminary Results and Report of two Cases

2007 ◽  
Vol 22 (3) ◽  
pp. 194-199 ◽  
Author(s):  
E. Özyar ◽  
M. Gültekin ◽  
A. Alp ◽  
G. Hasçelik ◽  
Ö. Ugur ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Nasopharyngeal Carcinoma ◽  
Epstein Barr Virus ◽  
Nasopharyngeal Cancer ◽  
Barr Virus ◽  
Group A ◽  
Ebv Dna ◽  
Epstein Barr ◽  
Group B

Recent studies suggest that plasma Epstein-Barr virus (EBV) DNA may reflect tumor burden in patients with nasopharyngeal cancer. A prospective study was initiated to investigate this correlation in 125 patients (34 pretreatment [Group A], 78 in remission [Group B] and 13 relapsed [Group C]) and 19 healthy controls. In group A, EBV DNA was detected in plasma samples of 24 (70%) patients. In Group B, EBV DNA was detected in 7 patients (range 77–13,731 copies/mL) and further imaging in all but one of these patients revealed active disease confirmed by ultrasound-guided fine-needle biopsy. There was only one false-positive case; this patient is currently under follow-up. Here we describe 2 of the 7 patients with detectable plasma EBV DNA in whom recurrence was documented by PET scan during follow-up. Our results showed that in group B the positive predictive value of quantitative analysis of plasma EBV DNA was 85%. Quantitative analysis of EBV DNA in plasma seems to become an integral part of screening, staging, monitoring, and prediction of relapse in patients with nasopharyngeal carcinoma. However, previous studies cannot be considered definitive and more reports on the use of this technique are urgently needed from both endemic and non-endemic regions.

scholarly journals Integrated Diagnostic Model That Incorporates Epstein-Barr Virus DNA, Imaging, and Nasal Endoscopy to Stratify Primary Tumor and Lymph Nodes in a Patient with N1 Nasopharyngeal Carcinoma: Multidisciplinary Management

2018 ◽  
Vol 11 (2) ◽  
pp. 289-297 ◽  
Author(s):  
Paolo Gamba ◽  
Luigina Rota ◽  
C. Abeni ◽  
Alessandra Huscher ◽  
Gabriele Saldi ◽  
...  
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Epstein Barr Virus ◽  
Early Stage ◽  
Distant Metastases ◽  
Disease Stage ◽  
Diagnostic Model ◽  
Barr Virus ◽  
Ebv Dna ◽  
Epstein Barr

Nasopharyngeal carcinoma (NPC) is an epithelial malignancy, with a high metastatic potential. Epstein-Barr virus (EBV) infection plays a fundamental role, even if it is not well understood. The diagnosis of the disease in its early stage is infrequent. Imaging studies, positron emission tomography scans in addition to clinical examination, endoscopic examination, and biopsy provide information on the extent of the disease. The application of neoadjuvant chemotherapy followed by concomitant chemoradiation can improve the control of NPC. In March 2016, a 54-year-old male with NPC cT1 cN2 cM0, stage III (8th edition of American Joint Committee on Cancer (AJCC) staging system) underwent to a two-step treatment: induction chemotherapy by TPF regimen (docetaxel, cisplatin, 5-fluorouracil), followed by concomitant chemoradiotherapy (weekly cisplatin). The quantity of free plasma EBV-DNA can be related to the disease stage, and the detection of EBV-DNA during follow-up can be predictive of distant metastases. Especially, either plasma or serum EBV-DNA titer is estimated to reflect tumor volume. Biologically, such EBV-DNA reflects reproduced or released DNA from dead or dying tumor cells. On the other hand, EBV-specific DNA released as exosome may reflect the biological feature of the alive NPC tumor cell. The follow-up is ongoing after 21 months from a complete response.

scholarly journals Circulating Plasma Epstein–Barr virus DNA Load During the Follow-up Periods Predicts Recurrence and Metastasis in Nasopharyngeal Carcinoma

2020 ◽  
Author(s):  
Sha-sha He ◽  
Yun-ying Yang ◽  
Yan Wang ◽  
Yu-feng Ren ◽  
Cheng-tao Wang ◽  
...  
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Epstein Barr Virus ◽  
Dynamic Changes ◽  
Barr Virus ◽  
Kaplan Meier ◽  
Ebv Dna ◽  
Epstein Barr ◽  
Landmark Analyses ◽  
Predictive Indicator

Abstract Background: Epstein Barr virus DNA (EBV DNA) load has been identified as a prognostic factor in nasopharyngeal carcinoma, while the dynamic changes in the long period have not been explored. In this study, we evaluated EBV DNA kinetics and its role in the survival.Methods: We conducted a retrospective review of 900 NPC patients. Plasma EBV DNA levels were measured at various time points after treatment. The correlations of EBV kinetics with recurrence and metastasis were analyzed. After stratifying patients according to the EBV results, survival was compared using Kaplan–Meier estimates. 12 and 24-month landmark analyses for OS data were performed according to the EBV groups.Results: Patients with post-EBV < 2,500 copies/mL achieved better survival than the higher ones. Furthermore, patients with continuously elevated EBV DNA had significantly poorer OS (HR: 2.542, 95%CI: 2.077–3.111, P < 0.001), DMFS (HR: 2.970, 95%CI: 2.392–3.687, P < 0.001), LRFS (HR: 1.699, 95%CI: 1.072–2.692, P = 0.013), and PFS (HR:2.535, 95%CI: 1.987–3.233, P < 0.001) than patients with continuously normal EBV or those with elevated levels at any time-point. The 5-year OS with elevated EBV was lower than the remission group by the 12 and 24-month landmark analysis.Conclusions: Elevated EBV DNA after treatment was a better predictive indicator of survival than the baseline concentrations. Furthermore, continuously elevated EBV DNA after treatment indicated recurrence, metastasis and unfavorable prognosis for NPC. In addition, EBV DNA was predictable in the long follow-up time.

scholarly journals Circulating cell‐free epstein–barr virus DNA levels and clinical features in Moroccan patients with nasopharyngeal carcinoma

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Amina Gihbid ◽  
Raja Benzeid ◽  
Abdellah Faouzi ◽  
Jalal Nourlil ◽  
Nezha Tawfiq ◽  
...  
Keyword(s):  
Prognostic Factors ◽  
Lymph Node ◽  
Nasopharyngeal Carcinoma ◽  
Epstein Barr Virus ◽  
Disease Stage ◽  
Barr Virus ◽  
Ebv Dna ◽  
Epstein Barr ◽  
Pre Treatment ◽  
Moroccan Patients

Abstract Background The identification of effective prognosis biomarkers for nasopharyngeal carcinoma (NPC) is crucial to improve treatment and patient outcomes. In the present study, we have attempted to evaluate the correlation between pre-treatment plasmatic Epstein-Barr virus (EBV) DNA load and the conventional prognostic factors in Moroccan patients with NPC. Methods The present study was conducted on 121 histologically confirmed NPC patients, recruited from January 2017 to December 2018. Circulating levels of EBV DNA were measured before therapy initiation using real-time quantitative PCR. Results Overall, undifferentiated non-keratinizingcarcinoma type was the most common histological type (90.1 %), and 61.8 % of patients were diagnosed at an advanced disease stage (IV). Results of pre-treatment plasma EBV load showed that 90.9 % of patients had detectable EBV DNA, with a median plasmatic viral load of 7710 IU/ml. The correlation between pre-treatment EBV DNA load and the conventional prognostic factors showed a significant association with patients’ age (p = 0.01), tumor classification (p = 0.01), lymph node status (p = 0.003), metastasis status (p = 0.00) and overall cancer stage (p = 0.01). Unexpectedly, a significant higher level of pre-treatment EBV DNA was also found in plasma of NPC patients with a family history of cancer (p = 0.04). The risk of NPC mortality in patients with high pretreatment EBVDNA levels was significantly higher than that of those with low pre-treatment plasma EBV-DNA levels (p < 0.05). Furthermore, patients with high pre-treatment EBV-DNA levels (≥ 2000, ≥ 4000) had a significant low overall survival (OS) rates (p < 0.05). Interestingly, lymph node involvement, metastasis status and OS were found to be the most important factors influencing the EBV DNA load in NPC patients. Conclusions The results of the present study clearly showed a high association between pre-treatment EBV DNA load, the crucial classical prognostic factors (T, N, M and disease stage) of NPC and OS, suggesting that pre-treatment EBV DNA can be a useful prognostic biomarker in clinical decision-making and improving NPC treatment in Morocco.

scholarly journals Plasma Epstein-Barr virus DNA predicts outcome in advanced Hodgkin lymphoma: correlative analysis from a large North American cooperative group trial

Blood ◽  
2013 ◽  
Vol 121 (18) ◽  
pp. 3547-3553 ◽  
Author(s):  
Jennifer A. Kanakry ◽  
Hailun Li ◽  
Lan L. Gellert ◽  
M. Victor Lemas ◽  
Wen-son Hsieh ◽  
...  
Keyword(s):  
Hodgkin Lymphoma ◽  
Epstein Barr Virus ◽  
Prognostic Significance ◽  
Barr Virus ◽  
Correlative Analysis ◽  
Key Points ◽  
Ebv Dna ◽  
Epstein Barr ◽  
Group Trial

Key Points Plasma EBV-DNA is highly concordant with EBV tumor status in Hodgkin lymphoma. Plasma EBV-DNA has prognostic significance in Hodgkin lymphoma, both before therapy and at month 6 of follow-up.

scholarly journals Prevalence of Epstein Barr Virus in biopsy specimens of nasopharyngeal carcinoma from Serbian patients

2014 ◽  
Vol 66 (2) ◽  
pp. 537-544 ◽  
Author(s):  
Ana Banko ◽  
Ivana Lazarevic ◽  
M. Folic ◽  
Maja Cupic ◽  
Tanja Jovanovic
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Epstein Barr Virus ◽  
Barr Virus ◽  
Biopsy Specimens ◽  
C Terminus ◽  
Geographical Regions ◽  
Significant Difference ◽  
Ebv Dna ◽  
Epstein Barr

The development of nasopharyngeal carcinoma (NPC) is the result of interaction between Epstein-Barr Virus (EBV) and many non-viral factors. The aims of this study were to determine the prevalence of EBV in NPC biopsies from Serbian patients and to investigate the correlation between EBV presence and demographic, anamnestic and clinical data. Ninety-three tissue blocks were included. For detection of EBV DNA, the C terminus of the LMP1 gene was amplified by nested-PCR. Twenty-eight biopsies were EBV-DNA-positive (30.1%), with a statistically significant difference in EBV DNA presence between geographical regions (p=0.02) and between the stages of tumor-node-metastasis (TNM) (p=0.02). A correlation was also found with the presence of EBV DNA and smoking (p=0.02). The correlation of EBV DNA presence, with or without smoking and the promising outcome of the disease was statistically significant (p=0.02; p=0.01). The EBV DNA findings from this study confirm the role of EBV in NPC carcinogenesis, and show the different distribution among TNM stages and correlation between the virus and outcome of disease.

Nasopharyngeal carcinoma: molecular pathogenesis and therapeutic developments

2007 ◽  
Vol 9 (12) ◽  
pp. 1-24 ◽  
Author(s):  
Qian Tao ◽  
Anthony T.C. Chan
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Cell Function ◽  
Southern China ◽  
Intensity Modulated Radiation Therapy ◽  
Tumour Suppressor Genes ◽  
Barr Virus ◽  
Ebv Dna ◽  
Epstein Barr ◽  
New Biomarkers ◽  
Multiple Tumour

Nasopharyngeal carcinoma (NPC) is a prevalent tumour in southern China and southeast Asia, particularly in the Cantonese population, where its incidence has remained high for decades. Recent studies have demonstrated that the aetiology of NPC is complex, involving multiple factors including genetic susceptibility, infection with the Epstein–Barr virus (EBV) and exposure to chemical carcinogens. During development of the disease, viral infection and multiple somatic genetic and epigenetic changes synergistically disrupt normal cell function, thus contributing to NPC pathogenesis. NPC is highly radiosensitive and chemosensitive, but treatment of patients with locoregionally advanced disease remains problematic. New biomarkers for NPC, including EBV DNA copy number or methylation of multiple tumour suppressor genes, which can be detected in serum and nasopharyngeal brushings, have been developed for the molecular diagnosis of this tumour. Meanwhile, new therapeutic strategies such as intensity-modulated radiation therapy and immuno- and epigenetic therapies might lead to more specific and effective treatments.

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