干扰素治疗慢性乙型肝炎患者肝组织细胞间粘附分子-1的表达

目的 观察干扰素-?1b(IFN-?1b)治疗慢性乙型肝炎患者前、后肝组织细胞间粘附分子-1(ICAM-1)的表达及血清HBV DNA载量的变化.方法 对慢性乙型肝炎患者治疗前及治疗结束时6个月行肝穿活检术,分别采用免疫组织化学法与实时荧光聚合酶链反应,检测肝组织ICAM-1的表达及血清中HBV DNA的载量变化.结果 干扰素治疗前、后,慢性乙型肝炎重度与中度患者肝组织ICAM-1表达水平有显著差异(P<0.05);慢性乙型肝炎轻度患者肝组织ICAM-1表达水平无显著差异(P0.05);治疗前肝组织ICAM-1染色强度( )的患者,治疗前、后HBVDNA载量变化无明显差异(P0.05);而肝组织ICAM-1染色强度( )与染色强度( 、 )的患者.治疗前、后HBV DNA载量变化有差异(P<0.05,P<0.01).结论 IFN-?1b治疗慢性乙型肝炎患者疗效与肝组织表达ICAM.1有关.慢性乙型肝炎患者肝组织ICAM-1增强表达有利于IFN发挥抗病毒作用.

Effects of interferon on hepatic intercellular adhesion molecule-I expression in patients with chronic hepatitis B

OBJECTIVE: To investigate the effects of interferon -alpha1b (IFN-alpha1b) on hepatic intercellular adhesion molecule-1 (ICAM-1) expression and serum HBV DNA in patients with chronic hepatitis B. METHODS: Before and 6 months after IFN-alpha1b treatment, liver biopsy was performed in patients with chronic hepatitis B to detect the expression of ICAM-1 in the liver tissues using immunohistochemistry. Serum HBV load was detected with real-time fluorescence polymerase chain reaction. RESULT: CAM-1 expression in the liver tissue was significantly down-regulated after IFN treatment in patients with severe and moderate chronic hepatitis B (P<0.05). No significant variation was noted in the expression of ICAM-1 in the livers of patients with mild chronic hepatitis B after the treatment (P>0.05). In the patients weakly positive for ICAM-1 expression (+), serum HBV DNA varied scarcely after the treatment (P>0.05), while in the patients with strong ICAM-1 positivity (++, +++, or ++++), significant variation of serum HBV DNA occurred after the treatment (P<0.05 or P<0.01). CONCLUSION: The therapeutic effect of IFN-alpha1b is associated with the expression of ICAM-1 in the hepatocytes, and its expression might enhance the effects of IFN on HBV DNA in patients with chronic hepatitis B.