›› 2009, Vol. 29 ›› Issue (5): 293-297.

• 论文 • 上一篇    下一篇

白细胞介素-12增强HBsAg疫苗免疫应答的实验研究

  

  1. 广州市恺泰生物科技有限公司,广州,510620
  • 收稿日期:2009-03-16 出版日期:2009-05-31 发布日期:2009-05-31

HBsAg Immune Response on Mouse Models Enhanced by Recombinant Murine Interluekin-12

  1. Guang Zhou Kai Tai Biological Engineering Co., LTD, Guangzhou 510620, China
  • Received:2009-03-16 Online:2009-05-31 Published:2009-05-31

摘要: 目的 研究白细胞介素-12(IL-12)对乙肝病毒表面抗原(HBsAg)疫苗的免疫增强作用。方法 选用C57BL/6J小鼠,使用不同剂量的重组鼠白细胞介素-12(rmIL-12)和HBsAg联合给药,检测给药前后血清中IFN-γ的浓度以及给药后小鼠脾脏淋巴细胞对HBsAg刺激的免疫应答能力的变化。结果 高剂量HBsAg和高剂量rmIL-12联合两次给药后,血清中IFN-γ浓度明显高于单独给HBsAg组或rmIL-12组(P<0.05);高剂量联合给药组的小鼠脾脏淋巴细胞经HBsAg体外刺激后诱生IFN-γ的能力明显高于单独给HBsAg组或rmIL-12组(P<0.05),流式细胞检测分析表明IFN-γ主要来源于CD4+和CD8+的T细胞。结论 rmIL-12能快速明显地提高C57BL/6J小鼠对HBsAg的特异性免疫应答能力,为IL-12和HBsAg在临床上联合治疗慢性乙肝感染提供了理论依据。

关键词: 慢性乙肝, rmIL-12, HBsAg, IFN-γ

Abstract: Objective To investigate the enhanced immunity of hepatitis B surface antigen (HBsAg) vaccine in response to interleukin-12 (IL-12) stimulation. Method C57BL/6J mice were injected with rmIL-12 plus HBsAg combination,after which the serum IFN-T level as well as the response of murine spleen lymphocytes to HBsAg was detected. Results Serum IFN-T level in high dose combination of HBsAg and rmIL-12 group after two injections was significant higher than that in HBsAg or rmIL-12 alone (尸<0.05). The ability of murine spleen lymphocytes producing IFN-T in response to HBsAg was significantly improved (P<0.05), and IFN-T mainly originated from CD4+ & CD8+ T cells detected by flow cytometric analysis. Conclusion The immunity response of C57BL/6J mice to HBsAg can be rapidly and specifically enhanced by rmIL-12, which may be a reference of IL-12 plus HBsAg clinical application on CHB infection.

Key words: CHB, rmIL-12, HBsAg, IFN-T