Abstract
TNF-α- as well as non-TNF-α-targeting biologics are prescribed to treat a variety of immune-mediated inflammatory disorders. The well-documented risk of tuberculosis progression associated with anti-TNF-α treatment highlighted the central role of TNF-α for the maintenance of protective immunity, although the rate of tuberculosis detected among patients varies with the nature of the drug. Using a human, in-vitro granuloma model, we reproduce the increased reactivation rate of tuberculosis following exposure to Adalimumab compared to Etanercept, two TNF-α-neutralizing biologics. We show that Adalimumab, because of its bivalence, specifically induces TGF-β1-dependent Mycobacterium tuberculosis (Mtb) resuscitation which can be prevented by concomitant TGF-β1 neutralization. Moreover, our data suggest an additional role of lymphotoxin-α-neutralized by Etanercept but not Adalimumab-in the control of latent tuberculosis infection. Furthermore, we show that, while Secukinumab, an anti-IL-17A antibody, does not revert Mtb dormancy, the anti-IL-12-p40 antibody Ustekinumab and the recombinant IL-1RA Anakinra promote Mtb resuscitation, in line with the importance of these pathways in tuberculosis immunity.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adalimumab / pharmacology
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Antibodies, Monoclonal, Humanized / immunology
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Antibodies, Monoclonal, Humanized / metabolism
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Antibodies, Monoclonal, Humanized / pharmacology
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Etanercept / pharmacology
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Granuloma / drug therapy
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Granuloma / metabolism
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Humans
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Immunologic Factors / metabolism
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Latent Tuberculosis / immunology
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Models, Biological
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Mycobacterium tuberculosis / immunology
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Mycobacterium tuberculosis / metabolism*
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Transforming Growth Factor beta1 / metabolism
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Tuberculosis / immunology*
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Tumor Necrosis Factor Inhibitors / metabolism
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Tumor Necrosis Factor Inhibitors / pharmacology*
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Tumor Necrosis Factor-alpha / immunology
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Tumor Necrosis Factor-alpha / metabolism
Substances
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Antibodies, Monoclonal, Humanized
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Immunologic Factors
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TGFB1 protein, human
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Transforming Growth Factor beta1
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Tumor Necrosis Factor Inhibitors
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Tumor Necrosis Factor-alpha
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secukinumab
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Adalimumab
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Etanercept
Grants and funding
DP received the funding to conduct the study under a research agreement contract between Novartis AG and the Swiss Tropical and Public Health Institute. The funders initiated study design e.g. decision to implement the assay and compare activity of the tested drugs. The funders later supported further study design initiated by the collaborators, and had no role in data collection and analysis.