在古代牙中保存整个抗体
Barry Shaw1, Thomas McDonnell2, Elizabeth Radley3
1School of Life Sciences, University of Nottingham Medical School, Nottingham, UK.
iScience
|August 25, 2023
概括
研究人员从中世纪人类牙中恢复了完整的抗体,提供了过去免疫反应和健康的分子记忆. 这种古老的蛋白质分析揭示了对宿主微生物相互作用和人类历史的见解.
科学领域:
- 古蛋白质组学是古蛋白质组学.
- 免疫学 免疫学 免疫学
- 考古学科学 考古学科学
背景情况:
- 考古遗迹中的蛋白质提供了对过去人类生活的见解.
- 骨组织可以保存功能性蛋白质,提供生命历史的分子记忆.
研究的目的:
- 为了证明从古代人类骨遗骸中恢复和分析功能性抗体.
- 探索古代抗体在理解过去宿主-微生物相互作用和免疫史方面的潜力.
主要方法:
- 从中世纪人类牙 (13-15世纪) 整体抗体分子的亲和性净化.
- 对抗体完整性的分析,包括二硫化物链接.
- 使用西方布洛特对爱斯坦-巴尔病毒 (EBV) 抗原的免疫活性评估.
主要成果:
- 从古老的牙中成功净化完整的功能性抗体分子.
- 纯化的抗体保留了二硫化物链接,适合进行序列分析.
- 抗体对当代EBV抗原表现出免疫活性,表明免疫记忆被保存.
结论:
- 古老的抗体可以从骨遗骸中恢复,保存过去免疫的分子记忆.
- 这种方法提供了对宿主微生物关联和人类健康的自然历史的见解.
- 这些发现为研究古代免疫系统和传染病开辟了新的途径.
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