Response to interferon-α treatment correlates with recovery of blood plasmacytoid dendritic cells in children with chronic hepatitis B

被引:50
作者
Zhang, Zheng
Zhang, Hongfei
Chen, Dawei
Yao, Jinxia
Fu, Junliang
Jin, Lei
Wang, Fu-Sheng [1 ]
机构
[1] Beijing 302 Hosp, Res Ctr Biol Therapy, Beijing 100039, Peoples R China
[2] Beijing 302 Hosp, Clin Dept 5, Beijing 100039, Peoples R China
关键词
children; hepatitis B virus; dendritic cells; plasmacytoid dendritic cells; interferon-alpha; antiviral therapy; response;
D O I
10.1016/j.jhep.2007.07.019
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
Background/Aims: To investigate whether dendritic cell changes are associated with the efficacy of interferon-alpha treatment we longitudinally analyzed circulating dendritic cells in children chronically infected with hepatitis B virus (HBV) undergoing interferon-alpha treatment. Methods:Thirty-one children with chronic hepatitis B (CHB) received interferon-a antiviral treatment for 52 weeks. Myeloid and plasmacytoid dendritic cell (pDCs) frequency and function were analyzed at weeks 0, 2, 12, 24, 36 and 52 in 22 CHB patients. Results:All patients exhibited an initially rapid decrease of circulating pDC numbers and CpG-induced endogenous interferon-a production within 2 weeks of interferon-a treatment. Subsequently, all responders displayed a continuous increase of both pDC numbers and function peaking around week 12. These responses were consequently accompanied by viral clearance, hepatitis B e antigen seroconversion, and the improvement of circulating myeloid dendritic cells and type I T helper cytokine levels. However, non-responders lacked these sequential responses compared with responders. Conclusions: pDCs may actively correlate with interferon-a therapy-induced viral clearance in pediatric patients with CHB. The recovery of blood pDC number and function may represent a prognostic marker for favourable response to interferon-a treatment in chronic hepatitis B. (c) 2007 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:751 / 759
页数:9
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