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2018 ; 8
(1
): 6758
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Transcriptional landscape of Mycobacterium tuberculosis infection in macrophages
#MMPMID29712924
Roy S
; Schmeier S
; Kaczkowski B
; Arner E
; Alam T
; Ozturk M
; Tamgue O
; Parihar SP
; Kawaji H
; Itoh M
; Lassmann T
; Carninci P
; Hayashizaki Y
; Forrest ARR
; Guler R
; Bajic VB
; Brombacher F
; Suzuki H
Sci Rep
2018[Apr]; 8
(1
): 6758
PMID29712924
show ga
Mycobacterium tuberculosis (Mtb) infection reveals complex and dynamic
host-pathogen interactions, leading to host protection or pathogenesis. Using a
unique transcriptome technology (CAGE), we investigated the promoter-based
transcriptional landscape of IFN? (M1) or IL-4/IL-13 (M2) stimulated macrophages
during Mtb infection in a time-kinetic manner. Mtb infection widely and
drastically altered macrophage-specific gene expression, which is far larger than
that of M1 or M2 activations. Gene Ontology enrichment analysis for Mtb-induced
differentially expressed genes revealed various terms, related to host-protection
and inflammation, enriched in up-regulated genes. On the other hand, terms
related to dis-regulation of cellular functions were enriched in down-regulated
genes. Differential expression analysis revealed known as well as novel
transcription factor genes in Mtb infection, many of them significantly
down-regulated. IFN? or IL-4/IL-13 pre-stimulation induce additional
differentially expressed genes in Mtb-infected macrophages. Cluster analysis
uncovered significant numbers, prolonging their expressional changes.
Furthermore, Mtb infection augmented cytokine-mediated M1 and M2 pre-activations.
In addition, we identified unique transcriptional features of Mtb-mediated
differentially expressed lncRNAs. In summary we provide a comprehensive in depth
gene expression/regulation profile in Mtb-infected macrophages, an important step
forward for a better understanding of host-pathogen interaction dynamics in Mtb
infection.