YAP promotes cell-autonomous immune responses to tackle intracellular Staphylococcus aureus in vitro
Caire, R.; Audoux, E.; Thomas, M.; Dalix, E.; Peyron, A.; Rodriguez, K.; Dickerscheit, Y.; Marotte, H.; Vandenesch, F.; Josse, J.; Laurent, F.; Verhoeven, P.
Show abstract
Transcriptional cofactors YAP/TAZ have recently been found to support autophagy and inflammation, which are part of cell autonomous immunity and are critical in antibacterial defense. Here, we studied the role of YAP against Staphylococcus aureus using CRISPR/Cas9-mutated HEK293 cells and a primary cell-based organoid model. We found that S. aureus infection increases YAP transcriptional activity, which is required to reduce intracellular S. aureus replication. A 770-gene targeted transcriptomic analysis revealed that YAP upregulates genes involved in autophagy/lysosome and inflammation pathways in both infected and uninfected conditions. The YAP/TEAD transcriptional activity promotes autophagic flux and lysosomal acidification, which are important for defense against intracellular S. aureus. Furthermore, the staphylococcal toxin C3 exoenzyme EDIN-B was found effective in preventing YAP-mediated cell-autonomous immune response. This study provides new insights on the anti-S. aureus activity of YAP, which could be conserved for defense against other intracellular bacteria. GRAPHICAL ABSTRACT O_FIG O_LINKSMALLFIG WIDTH=200 HEIGHT=177 SRC="FIGDIR/small/492111v1_ufig1.gif" ALT="Figure 1"> View larger version (47K): org.highwire.dtl.DTLVardef@6158f1org.highwire.dtl.DTLVardef@1164aedorg.highwire.dtl.DTLVardef@911558org.highwire.dtl.DTLVardef@11044b2_HPS_FORMAT_FIGEXP M_FIG C_FIG
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