Memory CD8+ T cells provide innate immune protection against Listeria monocytogenes in the absence of cognate antigen.
Memory CD8+ T cells provide innate immune protection against Listeria monocytogenes in the absence of cognate antigen.
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DOI:
10.1084/jem.20031051
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发表时间:
2003-11-17
期刊:
影响因子:
--
通讯作者:
Forman J
中科院分区:
文献类型:
--
作者:
Berg RE;Crossley E;Murray S;Forman J
Interferon (IFN)-γ plays an important role in the innate immune response against intracellular bacterial pathogens. It is commonly thought that natural killer cells are the primary source of this cytokine that is involved in activating antibacterial effects in infected cells and polarizing CD4+ T cells toward the Th1 subset. However, here we show that both effector and memory CD8+ T cells have the potential to secrete IFN-γ in response to interleukin (IL)-12 and IL-18 in the absence of cognate antigen. We demonstrate that memory CD8+ T cells specific for the ovalbumin protein secrete IFN-γ rapidly after infection with wild-type Listeria monocytogenes (LM). Furthermore, small numbers of ovalbumin-specific, memory CD8+ T cells can reduce spleen and liver bacterial counts in IFN-γ–deficient mice 3 d after LM infection. Up-regulation of the receptors for IL-12 and IL-18 provides a mechanism for the ability of memory CD8+ T cells to respond in this antigen nonspecific manner. Thus, CD8+ T cells play an important role in the innate immune response against intracellular pathogens by rapidly secreting IFN-γ in response to IL-12 and IL-18.
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DOI:
10.1084/jem.20021910
发表时间:
2003-05-05
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Curtsinger JM;Lins DC;Mescher MF
通讯作者:
Mescher MF
DOI:
10.1084/jem.192.12.1685
发表时间:
2000-12-18
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
den Haan JM;Lehar SM;Bevan MJ
通讯作者:
Bevan MJ
影响因子:
32.4
作者:
HARTY, JT;BEVAN, MJ
通讯作者:
BEVAN, MJ
影响因子:
3.1
作者:
DALRYMPLE, SA;LUCIAN, LA;MURRAY, R
通讯作者:
MURRAY, R
影响因子:
64.8
作者:
FERRICK, DA;SCHRENZEL, MD;LEPPER, H
通讯作者:
LEPPER, H