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Ribosome-targeting antibiotics impair T cell effector function and ameliorate autoimmunity by blocking mitochondrial protein synthesis

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  • معلومة اضافية
    • الموضوع:
      2021
    • Collection:
      Ghent University Academic Bibliography
    • نبذة مختصرة :
      While antibiotics are intended to specifically target bacteria, most are known to affect host cell physiology. In addition, some antibiotic classes are reported as immunosuppressive for reasons that remain unclear. Here, we show that Linezolid, a ribosomal-targeting antibiotic (RAbo), effectively blocked the course of a T cell mediated autoimmune disease. Linezolid and other RAbos were strong inhibitors of T helper-17 cell effector function in vitro, showing that this effect was independent of their antibiotic activity. Perturbing mitochondria! translation in differentiating T cells, either with RAbos or through the inhibition of mitochondria! elongation factor G1 (mEF-G1) progressively compromised the integrity of the electron transport chain. Ultimately, this led to deficient oxidative phosphorylation, diminishing nicotinamide adenine dinucleotide concentrations and impairing cytokine production in differentiating T cells. In accordance, mice lacking mEF-G1 in T cells were protected from experimental autoimmune encephalomyelitis, demonstrating that this pathway is crucial in maintaining T cell function and pathogenicity.
    • File Description:
      application/pdf
    • Relation:
      https://biblio.ugent.be/publication/8697692; http://hdl.handle.net/1854/LU-8697692; http://dx.doi.org/10.1016/j.immuni.2020.11.001; https://biblio.ugent.be/publication/8697692/file/8697702
    • الرقم المعرف:
      10.1016/j.immuni.2020.11.001
    • الدخول الالكتروني :
      https://biblio.ugent.be/publication/8697692
      http://hdl.handle.net/1854/LU-8697692
      https://doi.org/10.1016/j.immuni.2020.11.001
      https://biblio.ugent.be/publication/8697692/file/8697702
    • Rights:
      Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Public License (CC BY-NC-ND 4.0) ; info:eu-repo/semantics/openAccess
    • الرقم المعرف:
      edsbas.1E560145