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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Eur+J+Immunol
2016 ; 46
(11
): 2574-2586
Nephropedia Template TP
gab.com Text
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English Wikipedia
Rewiring cellular metabolism via the AKT/mTOR pathway contributes to host defence
against Mycobacterium tuberculosis in human and murine cells
#MMPMID27624090
Lachmandas E
; Beigier-Bompadre M
; Cheng SC
; Kumar V
; van Laarhoven A
; Wang X
; Ammerdorffer A
; Boutens L
; de Jong D
; Kanneganti TD
; Gresnigt MS
; Ottenhoff TH
; Joosten LA
; Stienstra R
; Wijmenga C
; Kaufmann SH
; van Crevel R
; Netea MG
Eur J Immunol
2016[Nov]; 46
(11
): 2574-2586
PMID27624090
show ga
Cells in homeostasis metabolize glucose mainly through the tricarboxylic acid
cycle and oxidative phosphorylation, while activated cells switch their basal
metabolism to aerobic glycolysis. In this study, we examined whether metabolic
reprogramming toward aerobic glycolysis is important for the host response to
Mycobacterium tuberculosis (Mtb). Through transcriptional and metabolite analysis
we show that Mtb induces a switch in host cellular metabolism toward aerobic
glycolysis in human peripheral blood mononuclear cells (PBMCs). The metabolic
switch is TLR2 dependent but NOD2 independent, and is mediated in part through
activation of the AKT-mTOR (mammalian target of rapamycin) pathway. We show that
pharmacological inhibition of the AKT/mTOR pathway inhibits cellular responses to
Mtb both in vitro in human PBMCs, and in vivo in a model of murine tuberculosis.
Our findings reveal a novel regulatory layer of host responses to Mtb that will
aid understanding of host susceptibility to Mtb, and which may be exploited for
host-directed therapy.