华西口腔医学杂志

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牙龈卟啉单胞菌FimA蛋白和白细胞介素-15共表达质粒免疫小鼠的实验研究

姜广水1, 郭红梅1, 王喜军2, 杨丕山1   

  1. 1.山东大学口腔医院综合科, 山东济南250012; 2.四川大学华西口腔医院颞下颌关节科, 四川成都610041
  • 收稿日期:2007-04-25 修回日期:2007-04-25 出版日期:2007-04-20 发布日期:2007-04-20
  • 通讯作者: 杨丕山,Tel:0531- 88382368
  • 作者简介: 姜广水(1956-),男,山东人,教授,博士
  • 基金资助:

    国家自然科学基金资助项目(30371323);山东省自然科学基金资助项目(21350005200337)

Nasal Immunization with Co- expr ession Plasmid Harbor ing Genes Encoding Porphyromonas gingivalis FimA and Human Inter leukin- 15 in Mice

JIANG Guang- shui1, GUO Hong- mei1, WANG Xi- jun2, YANG Pi- shan1   

  1. 1. Dept. of General Dentistry, School of Stomatology, Shandong University, Jinan 250012, China; 2. Dept. of Temporomandibular Joint, West China College of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2007-04-25 Revised:2007-04-25 Online:2007-04-20 Published:2007-04-20
  • Contact: YANG Pi- shan,Tel:0531- 88382368

摘要:

目的观察重组质粒pIRES- fimA:IL15经滴鼻免疫BABL/c小鼠后诱导产生的血清和唾液抗体反应及白细胞介素- 15(IL- 15)对sIgA反应的调节作用。方法重组质粒pIRES- fimA:IL15与pIRES- fimA经滴鼻免疫和肌肉注射免疫BABL/c小鼠,以间接ELISA方法检测血清中IgG和唾液中sIgA抗体水平。结果重组质粒pIRES- fimA:IL15与pIRES- fimA经滴鼻免疫可诱导产生唾液sIgA反应,且该反应明显高于肌肉注射组,血清IgG水平与肌肉注射组无统计学差异。pIRES- fimA:IL15经滴鼻免疫产生的唾液sIgA滴度显著高于pIRES- fimA组,且有统计学差异(P<0.05)。结论滴鼻免疫可以作为抗牙龈卟啉单胞菌DNA疫苗有效的黏膜免疫途径,诱导循环和口腔局部抗体反应;IL- 15可以作为细胞因子佐剂通过滴鼻途径增强该疫苗诱导的sIgA反应强度。

关键词: 牙龈卟啉单胞菌, 牙周炎, 黏膜免疫

Abstract:

Objective To observe the antibody responses induced by recombinant plasmid pIRES- fimA:IL15 via nasal immunization to BABL/c mice and the regulation of IL- 15 to sIgA. Methods BABL/c mice were immunized with recombinant plasmids pIRES- fimA:IL15 and pIRES- fimA via nasal or intramuscular route. Serum IgG and salivary sIgA levels after immunization were analyzed by ELISA. Results Nasal immunization with plasmids pIRESfimA: IL15 or pIRES- fimA elicited significant higher level of salivary FimA- specific sIgA responses compared with intramuscular immunization. There was no significant difference of the serum IgG responses between nasal immunization mice and intramuscular immunization mice. Nasal immunization with plasmid pIRES - fimA:IL15 elicited significant higher level of salivary sIgA response than with pIRES- fimA(P<0.05). Conclusion Nasal dropping may be an effective mucosal immunization route of anti- Porphyromonas gingivalis DNA vaccine to elicit specific antibody responses in serum and oral region. IL- 15 has a positive regulation effect to sIgA response.

Key words: Porphyromonas gingivalis, periodontitis, mucosal immunity