干扰素联合胸腺肽治疗慢性乙型肝炎过程中IL?12水平的动态变化
2010年9月06日 16:29 作者:lunwenchina【摘要】 目的 动态观察α?干扰素联合胸腺肽治疗慢性乙型肝炎(CHB)过程中患者外周血 IL?12水平,观察CHB患者对干扰素联合胸腺肽治疗的反应及免疫状态。方法 100例患者随机分为α?干扰素联合胸腺肽组和α?干扰素组,采用ELISA方法及PCR方法检测各组IL?12和HBV?DNA含量,同时观察各组ALT水平的变化。结果 治疗结束时联合组与干扰素组比较,IL?12水平明显增加(P<0.05),联合组血清HBV DNA阴转率及ALT复常率指标也均优于干扰素组,且治疗结束后仍维持较长时间。结论 IL?12参与CHB的发病机制,并可作为评估干扰素联合胸腺肽抗病毒治疗的重要免疫指标。胸腺肽联合干扰素治疗CHB比单独使用干扰素疗效更好、更持久。
【关键词】 慢性乙型肝炎(CHB);干扰素;胸腺肽
【Abstract】 Objective To observe the level of IL?12 of chronic hepatitis B(CHB) patients during the treatment with interferon αcombination with thymus peptide to forecast the therapeutic effect and the immune state. Methods 100 CHB patients were stochastically divided into interferon union thymus peptide and interferon groups . The level of IL?12 was tested by ELISA and the content of HBV?DNA was tested by PCR. Results At the end of treatment, the level of IL?12 of interferon union thymus peptide group was increased than that of interferon group (P< 0.05), the negative rate of HBV DNA and ALT were higher in interferon union thymus peptide group than that of interferon group (P< 0.05) and after treatment it still maintained for a long time. Conclusions IL?12 participates in the pathogenesis of CHB, and may takes an important indicator of assessing the anti?virus therapeutic effect of interferon combination with thymus peptide. The effect of thymus peptide combination with interferon for CHB is better and more lasting than the treatment of interferon.
【Key words】 Chronic hepatitis B (CHB); Interferon; Thymus peptide
近年研究表明,乙型肝炎病毒(HBV)在机体内持续感染与辅助T细胞(TH)1和TH2细胞失衡密切相关,白细胞介素?12(IL?12)是由巨噬细胞、B淋巴细胞等抗原提呈细胞在免疫应答中产生的细胞因子,其主要的生物学功能是诱导TH1细胞的分化、增加 CD8+T细胞的细胞毒活性,能特异性促进TH1细胞发育而抑制TH2细胞功能,同时增强自然杀伤细胞(NK细胞)的功能,促进细胞免疫功能,是一种重要的抗HBV细胞因子。免疫调节剂胸腺肽与抗病毒药物干扰素联合应用,可有效促进HBV清除,加快肝脏功能恢复。但关于胸腺肽与干扰素联合应用的临床研究报道较少。本实验通过检测胸腺肽与α?2b干扰素联合应用治疗老年慢性乙型肝炎(CHB)患者血清中IL?12及HBV?DNA含量变化,旨在观察胸腺肽联合α?2b干扰素对老年CHB的治疗效果。
1 材料与方法