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The Role of CpG Sequences in the Induction of Anti-dsDNA Antibodies
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF DERMATOLOGY
- Issue:
- 12
- DOI:
- 10.3760/j.issn:0412-4030.2004.12.001
- Key Word:
- 红斑狼疮,系统性;抗体,抗核;寡核苷酸序列分析
Abstract： 目的研究CpG序列在诱生抗dsDNA抗体中的作用及可能机制.方法以人工合成的含有CpG序列的寡核苷酸为生物佐剂,用天然的小牛胸腺DNA模拟自身抗原,免疫正常的BALB/c小鼠.免疫结束后,分别用天然的大肠杆菌DNA(nECDNA)和小牛胸腺DNA(nCTDNA)作为包被抗原检测小鼠血清的抗dsDNA抗体.结果用CpG序列加nCTDNA免疫的小鼠出现较高水平的抗dsDNA抗体和细胞因子(包括白介素6、白介素12、干扰素γ),组间的差异有显著性(P《0.01),诱导的抗体与nECDNA和nCTD-NA均能结合,但在结合的量上有差异.结论CpG序列能促进正常小鼠产生具有交叉反应特性的抗ds-DNA抗体.
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