Immunotherapeutic strategies for treatment of hepatocellular carcinoma with antigen-loaded dendritic cells: in vivo study

被引:3
作者
El-Ashmawy, Nahla E. [1 ]
El-Zamarany, Enas A. [2 ]
Khedr, Eman G. [1 ]
El-Bahrawy, Hoda A. [1 ]
El-Feky, Ola A. [1 ]
机构
[1] Tanta Univ, Fac Pharm, Dept Biochem, El Bahr St, Tanta 31111, El Gharbiya, Egypt
[2] Tanta Univ, Fac Med, Dept Clin Pathol, Tanta, Egypt
关键词
Hepatocellular carcinoma; Dendritic cells; IFN-gamma; IL-2; Prophylactic vaccine; VACCINATION;
D O I
10.1007/s10238-018-0521-6
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
Hepatocellular carcinoma (HCC) is one of the major health problems in the world. DCs-based vaccines are a promising immunotherapeutic strategy that aims at the optimal for induction of a specific antitumor immune response and destruction of tumor cells. The present study was conducted to investigate the immunogenic characters of whole tumor lysate-pulsed DCs vaccine and its ability to induce a specific antitumor immune response in HCC mice model. We also evaluate the effectiveness of prophylactic and therapeutic immunization strategies against HCC in mice models. Mice-derived DCs were in vitro loaded with whole tumor lysate prepared from liver tissue of HCC mice and evaluated for expression of surface maturation markers CD83 and CD86. In vivo immunization of mice with whole tumor lysate-pulsed DCs was performed in two strategies; prophylactic (pre-exposure to HCC) and therapeutic (post-exposure to HCC). Effectiveness of both protocols was investigated in terms of histopathological examination of liver sections and measurement of serum levels of immune cytokines interferon-gamma (IFN-gamma) and interleukin-2 (IL-2). Loading of DCs with whole tumor cell lysate exhibited a significant increase in expression of CD83 and CD86. In vivo administration of prophylactic doses of whole tumor lysate-pulsed DCs in mice before induction of HCC evokes a strong antitumor immune response presented by absence of malignant cells in liver sections and the significant increase in IFN-gamma and IL-2. Data herein indicated that prophylactic vaccination with whole tumor lysate-pulsed DCs exhibited an effective antitumor immune response against HCC more than therapeutic protocol.
引用
收藏
页码:535 / 546
页数:12
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