Objective:To study the effect of the Cytokine-induced killer cells cultured with engineered cells for costimulatory enhancement(ECCE-CIK) on inhibiting the replication of HBV produced by the human hepatoma cell lines HepG2.2.15. Methods:To generate ECCE-CIKs, ECCE were co-cultured with the peripheral blood mononuclear cells, IFN-γ, anti-CD3 antibody,and IL-2 were added into the culture system later. Then effector cells(ECCE-CIK) were co-cultured with target cells(HepG2.2.15) at effector to target (E:T) ratios of 1:1, 5:1, 20:1. After that the method of CFSE/PI was used to evaluate the death of target cells by flow cytometry. Then direct culturing system and indirect culturing system were established for the co-culturing of effector cells and target cells in vitro. At last the supernatants were collected from the two systems at 3, 24 and 48h respectively for detecting the amount of HBV DNA and HBsAg. Results:Accompanied by the increasement of E:T ratios and the duration of co-culturing the percentage of CFSE+ PI+ cells were increased progressively, while the levels of HBV DNA and HBsAg were decreased(P<0.05). Conclusion:These results suggestes that HBV replication in HepG2.2.15 can be suppressed by ECCE-CIK in both direct system and indirect system through cytolytic and noncytolytic mechanisms which may have a good clinical prospect. |
[1] 南大航,潘宁,张建琼.乙型肝炎动物模型研究进展[J].东南大学学报:医学版,2012,31(4):504-507.
[2] 石永进,虞积仁,岑溪南,等.细胞因子诱导杀伤(CIK)细胞的大容量扩增与杀伤活性观察[J].生物医学工程学杂志,2001,18(1):94-96.
[3] WANG L,YI Y,YIN D,et al.Augmented CD3(+)CD8(+) and CD3(+)CD56(-) cells in cytokine-induced killer cells cultured with engineered cells for costimulatory enhancement from heavily pretreated patients with solid tumor[J].Cytotherapy,2016,18(4):581-589.
[4] SUN J,GAO Y,CHEN H S,et al.Transfusion of multi-factors activated immune cells as a novel treatment for patients with chronic hepatitis B[J].J Clin Virol,2006,35(1):26-32.
[5] 苏海滨,李捍卫,赵洪兰,等.自体细胞因子诱导杀伤细胞治疗HBV感染肝硬变患者的临床疗效分析[J].中华实验和临床病毒学杂志,2007,21(1):64-66.
[6] SHI M,FU J,SHI F,et al.Transfusion of autologous cytokine-induced killer cells inhibits viral replication in patients with chronic hepatitis B virus infection[J].Clin Immunol,2009,132(1):43-54.
[7] 王少扬,刘海周,马卫闽,等.CIK细胞治疗慢性乙型肝炎的疗效观察[J].传染病信息,2011,24(2):103-105.
[8] YAN T,HE Y,LI Y,et al.With Cytometric Bead Assay,the Interleukin-10/HBV DNA Ratio Is an Early Predictor for Response to Interferon-α Treatment in Chronic Hepatitis B[J].J Interf Cytok Res,2015,35(10):779-784.
[9] HOVES S,TRAPANI J A,VOSKOBOINIK I.The battlefield of perforin/granzyme cell death pathways[J].J Leukocyte Biol,2010,87(2):237-243.
[10] VOSKOBOINIK I,DUNSTONE M A,BARAN K,et al.Perforin:structure,function,and role in human immunopathology[J].Immunol Rev,2010,235(1):35.
[11] LOPEZ J A,SUSANTO O,JENKINS M R,et al.Perforin forms transient pores on the target cell plasma membrane to facilitate rapid access of granzymes during killer cell attack[J].Blood,2013,121(14):2659-2668.
[12] 李海军.白细胞介素-21在乙型肝炎病毒感染中的作用研究[D].重庆:第三军医大学,2015. |