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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
): 1591
Nephropedia Template TP
gab.com Text
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English Wikipedia
Conventional CD4(+) T cells present bacterial antigens to induce cytotoxic and
memory CD8(+) T cell responses
#MMPMID29147022
Cruz-Adalia A
; Ramirez-Santiago G
; Osuna-Pérez J
; Torres-Torresano M
; Zorita V
; Martínez-Riaño A
; Boccasavia V
; Borroto A
; Martínez Del Hoyo G
; González-Granado JM
; Alarcón B
; Sánchez-Madrid F
; Veiga E
Nat Commun
2017[Nov]; 8
(1
): 1591
PMID29147022
show ga
Bacterial phagocytosis and antigen cross-presentation to activate CD8(+) T cells
are principal functions of professional antigen presenting cells. However,
conventional CD4(+) T cells also capture and kill bacteria from infected
dendritic cells in a process termed transphagocytosis (also known as
transinfection). Here, we show that transphagocytic T cells present bacterial
antigens to naive CD8(+) T cells, which proliferate and become cytotoxic in
response. CD4(+) T-cell-mediated antigen presentation also occurs in vivo in the
course of infection, and induces the generation of central memory CD8(+) T cells
with low PD-1 expression. Moreover, transphagocytic CD4(+) T cells induce
protective anti-tumour immune responses by priming CD8(+) T cells, highlighting
the potential of CD4(+) T cells as a tool for cancer immunotherapy.