Evaluation of serum concentrations of human hepatocyte growth factor during interferon therapy for chronic hepatitis C

被引:2
作者
Moriyama, M [1 ]
Matsumura, H [1 ]
Watanabe, A [1 ]
Oshiro, S [1 ]
Aoki, H [1 ]
Shimizu, T [1 ]
Nakai, K [1 ]
Yamagami, H [1 ]
Kaneko, M [1 ]
Shioda, A [1 ]
Tanaka, N [1 ]
Arakawa, Y [1 ]
机构
[1] Nihon Univ, Sch Med, Dept Internal Med 3, Itabashi Ku, Tokyo 1738610, Japan
关键词
human hepatocyte growth factor; chronic hepatitis C; interferon; virologically sustained response; immunoperoxidase staining;
D O I
10.1159/000084599
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
In this study, the serum concentrations of human hepatocyte growth factor (HGF) were examined to clarify the relationship between HGF and interferon (IFN) therapy for hepatitis C. The subjects were 94 patients with chronic hepatitis C who underwent liver biopsy at our institution from 1994 through 1996. These patients were treated with natural IFN-alpha, IFN alpha(2a) and IFN alpha(2b) for periods varying from 12 to 26 weeks. Serum levels of HGF were determined in individual patients just before and after the administration of IFN and at 6 months and 1 year thereafter. The serum concentration of HGF was evaluated using enzyme-linked immunosorbent assay kits. The intra-hepatic location of HGF was explored using an immunoperoxidase-staining method. A positive correlation was found between the degree of HGF expression in the liver and the serum HGF concentrations. The degree of HGF expression in the liver decreased in the virologically sustained responders (SVRs) following IFN therapy. The serum HGF concentrations immediately after IFN therapy were lower than those before therapy in 83% of the patients. The concentrations gradually rose thereafter in about 45% of the non-responders, while it remained low or declined further in about half of the patients in this group. In the SVRs, the serum HGF concentrations declined in 88% of patients immediately after IFN therapy. Thereafter, it remained equally low or declined further in 60% of the SVRs. The serum HGF concentrations at 6 months and 1 year after IFN therapy were significantly lower in the SVRs than in the non-responders. In conclusions, serum HGF concentrations declined following IFN treatment regardless of the virological outcome of treatment. The decrease in serum HGF concentrations results from a decrease in the number of mesenchymal cells producing HGF. Consequently, evaluation of the serum HGF concentration is of clinical value for assessing changes in liver tissues after IFN therapy. Copyright (C) 2005 S. Karger AG, Basel.
引用
收藏
页码:223 / 229
页数:7
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