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Separation of Immune Cell Subpopulations in Peripheral Blood Samples from Children with Infectious Mononucleosis
Published on: September 7, 2022
EBV primary infection in childhood and its relation to B-cell lymphoma development: a mini-review from a developing
Paola A Chabay1, Maria V Preciado
1Molecular Biology Laboratory, Pathology Division, Ricardo Gutiérrez Children's Hospital, Gallo 1330, Buenos Aires, Argentina. paola_chabay@yahoo.com.ar
Insights
Epstein Barr virus (EBV) infection in childhood, common in developing nations, is linked to a higher risk of B-cell lymphoma. Early EBV seroconversion in Argentina correlates with increased lymphoma development in young patients.
Area of Science:
- Virology
- Oncology
- Epidemiology
Background:
- Epstein Barr virus (EBV) primary infection timing varies globally, impacting disease presentation.
- While often asymptomatic, EBV is implicated in B-cell lymphoma development in susceptible individuals.
Purpose of the Study:
- To investigate the epidemiological patterns of EBV primary infection in Argentina.
- To analyze the association between EBV and different types of B-cell lymphomas in a pediatric and adult population.
- To explore the relationship between early EBV seroconversion and B-cell lymphoma risk.
Main Methods:
- Serological testing to determine EBV status in patients.
- Retrospective analysis of EBV association with Hodgkin lymphoma, Burkitt lymphoma, and diffuse large B-cell lymphoma.
- Comparison of EBV prevalence and lymphoma association with international data.
Main Results:
- Argentinian children exhibit early EBV seroconversion, typical of developing countries.
- EBV association with pediatric Hodgkin and Burkitt lymphoma mirrors developed regions.
- A higher EBV association was observed in diffuse large B-cell lymphoma cases compared to international series.
- A significant association between EBV and lymphoma was found in patients 10 years old and younger.
Conclusions:
- Early EBV primary infection in Argentina, coupled with a significant association in young lymphoma patients, suggests a link between early seroconversion and increased B-cell lymphoma risk.
- These findings highlight the complex interplay between EBV epidemiology and B-cell oncogenesis across different age groups and geographic settings.
Abstract:
In most underdeveloped countries, the initial contact with Epstein Barr virus (EBV) usually happens in the first decade of life and results in an asymptomatic infection, whereas in developed areas, primary infection in adolescence or adulthood is accompanied by infectious mononucleosis in 50% cases. Although it is generally a harmless passenger, in some individuals, it is associated with B-cell lymphoma. In Argentina, EBV primary infection shows the classical pattern observed in developing populations, given that nearly 70% of patients are seropositive by the age of 2 years. However, EBV association with pediatric Hodgkin and Burkitt lymphoma resembles that observed in developed regions. Concerning diffuse large B-cell lymphoma, our series demonstrated higher EBV association than other adult ones from either developed or underdeveloped countries. Interestingly, the early EBV primary infection observed, characteristic of an underdeveloped population, together with the statistically significant EBV association with patients ≤ 10 years old demonstrated in all types of lymphoma studied, suggest a relationship between low age of EBV seroconversion and B-cell lymphoma development risk.
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