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Related Concept Videos

B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
Immunological Memory01:23

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Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
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Immunodeficiency Diseases01:25

Immunodeficiency Diseases

Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
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Cytomegalovirus Disease01:27

Cytomegalovirus Disease

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Related Experiment Video

Updated: Jul 12, 2026

An Efficient and Simple Method to Establish NK and T Cell Lines from Patients with Chronic Active Epstein-Barr Virus Infection
09:43

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

Immune function in chronic active Epstein-Barr virus infection.

R Kibler, D O Lucas, M J Hicks

    Journal of Clinical Immunology
    |January 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Chronic active Epstein-Barr virus (EBV) infection impairs immune cell function. Patients show reduced interleukin-2 and interferon production, and decreased natural killer (NK) cell activity, suggesting immune dysregulation.

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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
    09:43

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    Published on: March 30, 2018

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    Separation of Immune Cell Subpopulations in Peripheral Blood Samples from Children with Infectious Mononucleosis

    Published on: September 7, 2022

    Isolation and Quantification of Epstein-Barr Virus from the P3HR1 Cell Line
    09:14

    Isolation and Quantification of Epstein-Barr Virus from the P3HR1 Cell Line

    Published on: September 28, 2022

    Area of Science:

    • Immunology
    • Virology
    • Cell Biology

    Background:

    • Epstein-Barr virus (EBV) is linked to chronic illness with persistent symptoms.
    • High antibody titers to EBV are characteristic of this condition.
    • Understanding the immunologic status in chronic active EBV infection is crucial.

    Purpose of the Study:

    • To investigate the immunologic status of patients with chronic active EBV infection.
    • To assess the function of peripheral blood mononuclear cells and natural killer (NK) cells.
    • To explore potential immune defects contributing to persistent EBV-related illness.

    Main Methods:

    • Examined 13 patients diagnosed with chronic active EBV infection.
    • Performed morphological and fluorescent antibody analysis of peripheral blood white cells.
    • Assessed interleukin-2 and interferon production by mononuclear cells after stimulation.
    • Measured natural killer (NK) cell activity in unfractionated and enriched cell populations.

    Main Results:

    • No abnormalities in peripheral blood white cell phenotypes were observed.
    • Mononuclear cells from patients exhibited significantly reduced production of interleukin-2 and interferon.
    • Unfractionated mononuclear cells showed lower NK cell killing activity compared to healthy controls.
    • Enriched NK cell populations in patients still displayed slightly reduced activity.

    Conclusions:

    • Patients with chronic active EBV infection display impaired immune functions, including reduced cytokine production and NK cell activity.
    • These immune dysfunctions may stem from a primary immunodeficiency predisposing to chronic illness or be a consequence of the EBV infection itself.
    • Further research is needed to elucidate the precise cause of these immune abnormalities in chronic active EBV infection.