树突状细胞(DC)是人体内抗原递呈能力最强的细胞[1],也是惟一能激活初始化T淋巴细胞的抗原提呈细胞(APC),其功能状态直接影响细胞免疫和体液免疫应答,在抗病毒的细胞免疫中起重要作用[2-3],同时在诱导免疫耐受和参与免疫应答的调节中也起着重要作用[4-5]。病毒性肝炎是我国最常见的疾病之一,大量研究证实,慢性乙型肝炎患者的DC功能异 Dendritic cells (DCs) are the most antigen presenting cells in the human body [1] and are the only antigen-presenting cells (APCs) that can activate initial T lymphocytes. Their functional status directly affects the cellular and humoral immune responses , Play an important role in antiviral cellular immunity [2-3], and play an important role in inducing immune tolerance and participating in the regulation of immune response [4-5]. Viral hepatitis is one of the most common diseases in our country, a large number of studies have confirmed that patients with chronic hepatitis B DC function difference