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Moreira, Jôsimar D; Koch, Bjørn E V; van Veen, Suzanne; Walburg, Kimberley V; Vrieling, Frank; Mara Pinto Dabés Guimarães, Tânia; Meijer, Annemarie H; Spaink, Herman P; Ottenhoff, Tom H M; Haks, Mariëlle C; Heemskerk, Matthias T
Frontiers in immunology, 02/2020, Letnik: 11Journal Article
The rapid and persistent increase of drug-resistant ( ) infections poses increasing global problems in combatting tuberculosis (TB), prompting for the development of alternative strategies including host-directed therapy (HDT). Since is an intracellular pathogen with a remarkable ability to manipulate host intracellular signaling pathways to escape from host defense, pharmacological reprogramming of the immune system represents a novel, potentially powerful therapeutic strategy that should be effective also against drug-resistant . Here, we found that host-pathogen interactions in -infected primary human macrophages affected host epigenetic features by modifying histone deacetylase (HDAC) transcriptomic levels. In addition, broad spectrum inhibition of HDACs enhanced the antimicrobial response of both pro-inflammatory macrophages (Mϕ1) and anti-inflammatory macrophages (Mϕ2), while selective inhibition of class IIa HDACs mainly decreased bacterial outgrowth in Mϕ2. Moreover, chemical inhibition of HDAC activity during differentiation polarized macrophages into a more bactericidal phenotype with a concomitant decrease in the secretion levels of inflammatory cytokines. Importantly, chemical inhibition of HDAC activity in -infected zebrafish embryos, a well-characterized animal model for tuberculosis, significantly reduced mycobacterial burden, validating our findings in primary human macrophages. Collectively, these data identify HDACs as druggable host targets for HDT against intracellular .
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in: SICRIS
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