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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 Nat+Commun
2017 ; 8
(1
): 511
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NFATc1 controls the cytotoxicity of CD8(+) T cells
#MMPMID28894104
Klein-Hessling S
; Muhammad K
; Klein M
; Pusch T
; Rudolf R
; Flöter J
; Qureischi M
; Beilhack A
; Vaeth M
; Kummerow C
; Backes C
; Schoppmeyer R
; Hahn U
; Hoth M
; Bopp T
; Berberich-Siebelt F
; Patra A
; Avots A
; Müller N
; Schulze A
; Serfling E
Nat Commun
2017[Sep]; 8
(1
): 511
PMID28894104
show ga
Cytotoxic T lymphocytes are effector CD8(+) T cells that eradicate infected and
malignant cells. Here we show that the transcription factor NFATc1 controls the
cytotoxicity of mouse cytotoxic T lymphocytes. Activation of Nfatc1 (-/-)
cytotoxic T lymphocytes showed a defective cytoskeleton organization and
recruitment of cytosolic organelles to immunological synapses. These cells have
reduced cytotoxicity against tumor cells, and mice with NFATc1-deficient T cells
are defective in controlling Listeria infection. Transcriptome analysis shows
diminished RNA levels of numerous genes in Nfatc1 (-/-) CD8(+) T cells, including
Tbx21, Gzmb and genes encoding cytokines and chemokines, and genes controlling
glycolysis. Nfatc1 (-/-) , but not Nfatc2 (-/-) CD8(+) T cells have an impaired
metabolic switch to glycolysis, which can be restored by IL-2. Genome-wide
ChIP-seq shows that NFATc1 binds many genes that control cytotoxic T lymphocyte
activity. Together these data indicate that NFATc1 is an important regulator of
cytotoxic T lymphocyte effector functions.NFAT nuclear translocation has been
shown to be required for CD8(+) T cell cytokine production in response to viral
infection. Here the authors show NFATc1 controls the cytotoxicity and metabolic
switching of activated CD8(+) T cells required for optimal response to bacteria
and tumor cells.