TY - JOUR
T1 - Macrophage phosphoproteome analysis reveals MINCLE-dependent and -independent mycobacterial cord factor signaling
AU - Hansen, Madlen
AU - Peltier, Julien
AU - Killy, Barbara
AU - Amin, Bushra
AU - Bodendorfer, Barbara
AU - Härtlova, Anetta
AU - Uebel, Sebastian
AU - Bosmann, Markus
AU - Hofmann, Jörg
AU - Büttner, Christian
AU - Ekici, Arif B
AU - Kuttke, Mario
AU - Franzyk, Henrik
AU - Foged, Camilla
AU - Beer-Hammer, Sandra
AU - Schabbauer, Gernot
AU - Trost, Matthias
AU - Lang, Roland
N1 - Published under license by The American Society for Biochemistry and Molecular Biology, Inc.
PY - 2019/4
Y1 - 2019/4
N2 - Immune sensing of Mycobacterium tuberculosis relies on recognition by macrophages. Mycobacterial cord factor, trehalose-6,6-dimycolate (TDM), is the most abundant cell wall glycolipid and binds to the C-type lectin receptor (CLR) MINCLE. To explore the kinase signaling linking the TDM-MINCLE interaction to gene expression, we employed quantitative phosphoproteome analysis. TDM caused upregulation of 6.7% and suppressed 3.8% of the 14,000 phospho-sites identified on 3727 proteins. MINCLE-dependent phosphorylation was observed for canonical players of CLR signaling (e.g. PLC, PKC), and was enriched for PKC and GSK3 kinase motifs. MINCLE-dependent activation of the PI3K-AKT-GSK3 pathway contributed to inflammatory gene expression and required the PI3K regulatory subunit p85. Unexpectedly, a substantial fraction of TDM-induced phosphorylation was MINCLE-independent, a finding paralleled by transcriptome data. Bioinformatics analysis of both data sets concurred in the requirement for MINCLE for innate immune response pathways and processes. In contrast, MINCLE-independent phosphorylation and transcriptome responses were linked to cell cycle regulation. Collectively, our global analyses show substantial reprogramming of macrophages by TDM and reveal a dichotomy of MINCLE-dependent and-independent signaling linked to distinct biological responses.
AB - Immune sensing of Mycobacterium tuberculosis relies on recognition by macrophages. Mycobacterial cord factor, trehalose-6,6-dimycolate (TDM), is the most abundant cell wall glycolipid and binds to the C-type lectin receptor (CLR) MINCLE. To explore the kinase signaling linking the TDM-MINCLE interaction to gene expression, we employed quantitative phosphoproteome analysis. TDM caused upregulation of 6.7% and suppressed 3.8% of the 14,000 phospho-sites identified on 3727 proteins. MINCLE-dependent phosphorylation was observed for canonical players of CLR signaling (e.g. PLC, PKC), and was enriched for PKC and GSK3 kinase motifs. MINCLE-dependent activation of the PI3K-AKT-GSK3 pathway contributed to inflammatory gene expression and required the PI3K regulatory subunit p85. Unexpectedly, a substantial fraction of TDM-induced phosphorylation was MINCLE-independent, a finding paralleled by transcriptome data. Bioinformatics analysis of both data sets concurred in the requirement for MINCLE for innate immune response pathways and processes. In contrast, MINCLE-independent phosphorylation and transcriptome responses were linked to cell cycle regulation. Collectively, our global analyses show substantial reprogramming of macrophages by TDM and reveal a dichotomy of MINCLE-dependent and-independent signaling linked to distinct biological responses.
U2 - 10.1074/mcp.ra118.000929
DO - 10.1074/mcp.ra118.000929
M3 - Journal article
C2 - 30635358
SN - 1535-9476
VL - 18
SP - 669
EP - 685
JO - Molecular and Cellular Proteomics
JF - Molecular and Cellular Proteomics
IS - 4
ER -