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Activated regulatory T cells suppress effector NK cell responses by an IL-2-mediated mechanism...

Discussion in 'Other Health News and Research' started by Kati, Jul 31, 2015.

  1. Kati

    Kati Patient in training

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    Activated regulatory T cells suppress effector NK cell responses by an IL-2-mediated mechanism during an acute retroviral infection

    Open access paper

    Abstract

    Background

    It is well established that effector T cell responses are crucial for the control of most virus infections, but they are often tightly controlled by regulatory T cells (Treg) to minimize immunopathology.

    NK cells also contribute to virus control but it is not known if their antiviral effect is influenced by virus-induced Tregs as well. We therefore analyzed whether antiretroviral NK cell functions are inhibited by Tregs during an acute Friend retrovirus infection of mice.

    Results
    Selective depletion of Tregs by using the transgenic DEREG mouse model resulted in improved NK cell proliferation, maturation and effector cell differentiation.

    Suppression of NK cell functions depended on IL-2 consumption by Tregs, which could be overcome by specific NK cell stimulation with an IL-2/anti-IL-2 mAb complex.

    Conclusions
    The current study demonstrates that virus-induced Tregs indeed inhibit antiviral NK cell responses and describes a targeted immunotherapy that can abrogate the suppression of NK cells by Tregs.



     
    Sidereal, nandixon, Hutan and 2 others like this.
  2. Sidereal

    Sidereal Senior Member

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    Tregs. :devil:
     
  3. shannah

    shannah Senior Member

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    Difficulty reading at the moment.

    Does it say what the targeted immunotherapy is?
     

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