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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
(ä): 15402
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English Wikipedia
Antigen-specific CD8(+) T cell feedback activates NLRP3 inflammasome in
antigen-presenting cells through perforin
#MMPMID28537251
Yao Y
; Chen S
; Cao M
; Fan X
; Yang T
; Huang Y
; Song X
; Li Y
; Ye L
; Shen N
; Shi Y
; Li X
; Wang F
; Qian Y
Nat Commun
2017[May]; 8
(ä): 15402
PMID28537251
show ga
The connection between innate and adaptive immunity is best exemplified by
antigen presentation. Although antigen-presenting cells (APCs) are required for
antigen receptor-mediated T-cell activation, how T-cells feedback to APCs to
sustain an antigen-specific immune response is not completely clear. Here we show
that CD8(+) T-cell (also called cytotoxic T lymphocytes, CTL) feedback activates
the NLRP3 inflammasome in APCs in an antigen-dependent manner to promote IL-1?
maturation. Perforin from antigen-specific CTLs is required for NLRP3
inflammasome activation in APCs. Furthermore, such activation of NLRP3
inflammasome contributes to the induction of antigen-specific antitumour immunity
and pathogenesis of graft-versus-host diseases. Our study reveals a positive
feedback loop between antigen-specific CTLs and APC to amplify adaptive immunity.