来自Bothrops jararacussu毒液的低分子量部分的免疫刺激作用
Marina Ferreira da Silva1, Fábio Carlos Magnoli1, Laís Gomes da Silva2
1Laboratory of Immunochemistry, Butantan Institute, Brazil.
Toxicon : official journal of the International Society on Toxinology
|December 14, 2025
概括
蛇毒成分可以促进免疫反应,有助于疫苗开发. 来自Bothrops jararacussu毒液 (Fr7) 的特定部分在体外和体内激活了免疫细胞,显示出作为新型免疫刺激剂的潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 生物技术是生物技术.
- 药理学 药理学是指药理学的学科.
背景情况:
- 现代疫苗需要免疫刺激分子来增强免疫性.
- 激活抗原呈现细胞 (APC) 的促炎分子是新型免疫刺激剂的关键候选者.
- 博特罗普斯的毒素具有促炎性质,使其成为这种分子的潜在来源.
研究的目的:
- 为了研究Bothrops jararacussu毒液的免疫刺激潜力.
- 为了确定能够激活免疫细胞和细胞因子生产的特定毒素分数.
- 为了评估最有前途的毒素分量的体内免疫调节作用.
主要方法:
- 将Bothrops jararacussu毒液分成七个不同的部分.
- 在实验室中对小鼠腹巨细胞进行毒素分量的测试,以评估细胞因子的产生 (TNF,IL-6,MCP-1,IL-1β).
- 使用流细胞计和MALDI-TOF分析对小鼠腹细胞 (包括APC和淋巴细胞) 进行选择分量的体内评估 (Fr7).
主要成果:
- 所有七种毒素分数都对至少一种细胞因子表现出显著的免疫刺激作用.
- 低分子量分数 (Fr7) 在低度 (5μg/mL) 中独特地增加了促炎媒介 (TNF,IL-6,MCP-1,IL-1β).
- 在体内,Fr7招募了激活的APC (巨细胞,树突细胞,B1细胞) 并促进了自适应性免疫细胞扩张/激活 (TCD4,TCD8,B2淋巴细胞).
结论:
- 博思罗普斯 (Bothrops jararacussu) 的毒液含有强大的免疫刺激成分.
- 低分子量分数 (Fr7) 在体外和体内有效调节先天性和适应性免疫力.
- 进一步净化Fr7成分,潜在的脂酶A2,可以产生新的疫苗辅助剂.
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