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An Efficient and Simple Method to Establish NK and T Cell Lines from Patients with Chronic Active Epstein-Barr Virus Infection
Published on: March 30, 2018
Increased cell-free viral DNA in fatal cases of chronic active Epstein-Barr virus infection
H Kanegane1, H Wakiguchi, C Kanegane
1Department of Pediatrics, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan. kanegane@ms.toyama-mpu.ac.jp
Insights
High levels of Epstein-Barr virus (EBV) DNA in the blood are linked to fatal chronic active EBV infection. Detecting cell-free EBV DNA may help monitor disease severity.
Area of Science:
- Virology
- Immunology
Background:
- Epstein-Barr virus (EBV) causes infectious mononucleosis and is associated with various cancers and chronic conditions.
- Chronic active EBV infection (CAEBV) is a severe condition with limited diagnostic markers.
- Understanding EBV's role in CAEBV is crucial for diagnosis and management.
Purpose of the Study:
- To investigate the presence and significance of cell-free Epstein-Barr virus DNA in patients with chronic active EBV infection.
- To compare EBV DNA levels in fatal vs. nonfatal CAEBV, acute infectious mononucleosis, and healthy controls.
Main Methods:
- A cohort of 33 patients with chronic active EBV infection was studied.
- The study included subgroups with fatal (n=14) and nonfatal (n=19) CAEBV, patients with acute infectious mononucleosis (n=18), and healthy controls (n=10).
- Semiquantitative polymerase chain reaction (PCR) was used to detect and measure EBV DNA in serum or plasma samples.
Main Results:
- EBV DNA was detected in 62% of patients with fatal CAEBV.
- In contrast, only 11% of patients with nonfatal CAEBV and 11% with infectious mononucleosis tested positive for EBV DNA.
- No EBV DNA was detected in healthy controls.
Conclusions:
- Cell-free circulating EBV DNA is a significant indicator in chronic active EBV infection.
- The presence of EBV DNA in serum/plasma may serve as a valuable biomarker for monitoring CAEBV severity.
- Further research can explore EBV DNA as a prognostic tool for CAEBV outcomes.
Abstract:
We have studied the nature of Epstein-Barr virus (EBV) infection in 33 patients with chronic active EBV infection. The study population included 14 patients with fatal chronic EBV infection and 19 patients with nonfatal chronic EBV infection, as well as 18 patients with acute EBV-induced infectious mononucleosis and 10 healthy controls. EBV DNA was measured in serum or plasma samples from the patients by semiquantitative polymerase chain reaction-based assay. EBV DNA was detected in serum or plasma samples from 62% (9/14) of patients with fatal chronic active EBV infection. In contrast, only 11% (2/19) of patients with nonfatal chronic active EBV infection and 11% (2/18) of patients with infectious mononucleosis displayed EBV DNA. None of the healthy controls tested positive. Cell-free circulating EBV DNA may represent an important feature of chronic active EBV infection and may provide a useful tool to monitor the severity of this illness.
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