Impaired allostimulatory capacity of peripheral blood dendritic cells recovered from hepatitis C virus-infected individuals.
Impaired allostimulatory capacity of peripheral blood dendritic cells recovered from hepatitis C virus-infected individuals.
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从丙型肝炎病毒感染个体中回收的外周血树突状细胞的同种刺激能力受损。
DOI:
10.4049/jimmunol.162.9.5584
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发表时间:
1999
影响因子:
4.4
通讯作者:
M. Hori
中科院分区:
文献类型:
--
作者:
T. Kanto;N. Hayashi;T. Takehara;T. Tatsumi;N. Kuzushita;A. Ito;Y. Sasaki;A. Kasahara;M. Hori
In hepatitis C virus (HCV) infection, Th responses are implicated in the pathogenesis of liver disease. The dendritic cell (DC) is the most potent activator of CD4 T cells for supporting Th1 differentiation. To clarify the roles of DC of HCV-infected individuals in the development of CD4 T cell responses, we generated peripheral DC with GM-CSF and IL-4 from 24 chronic hepatitis C patients and 14 healthy donors. We then compared their potentials for stimulating allogeneic CD4 T cells, autologous CD4 T cells against influenza A or HCV core Ags, and cytokine production. The DC from the patients (HCV-DC) expressed lower degrees of CD86 than DC from the donors (N-DC), whereas no difference was found in the HLA molecules and other costimulators. HCV-DC stimulated allogeneic T cells less than N-DC; however, influenza A- or core-pulsed HCV-DC retained the potentials for autologous T cell proliferation. In allogeneic DC/T cell cultures, the IFN-gamma levels with HCV-DC were lower than those with N-DC, which may be related to the low expressions of IL-12 p35 and p40 transcripts in HCV-DC. The stimulation with LPS disclosed that HCV-DC is less potent in IL-12 p70 production than N-DC. In the autologous cultures, the pulsing of the Ags to HCV-DC increased the IL-12 p40 and IFN-gamma production and up-regulated the transcription of both IL-12 subunits. Exogenous IL-2 or IL-12 restored the low allogeneic T cell proliferation with HCV-DC in a dose-dependent manner. Therefore, low expression of CD86 and/or IL-12 is crucially involved in the low allostimulatory capacity of HCV-DC. Low IL-12 and low IFN-gamma milieu with HCV-DC on encounters with alloantigens may impede Th1 polarization.
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影响因子:
--
作者:
Awdeh,ZL;Alper,CA;Fici,DA;Ronco2nd,P;Yunis,EJ
通讯作者:
Yunis,EJ
DOI:
--
发表时间:
1998
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
McRae,BL;Semnani,RT;Hayes,MP;vanSeventer,GA
通讯作者:
vanSeventer,GA
影响因子:
4.4
作者:
Lina Lu;S. Qian;P. Hershberger;W. Rudert;David H. Lynch;A. Thomson
通讯作者:
Lina Lu;S. Qian;P. Hershberger;W. Rudert;David H. Lynch;A. Thomson
影响因子:
29.4
作者:
Bertoletti, A;DElios, MM;Ferrari, C
通讯作者:
Ferrari, C
影响因子:
4.3
作者:
Gabrilovich, DI;Ciernik, IF;Carbone, DP
通讯作者:
Carbone, DP