OSaMPle 唾液甲蛋白组学分析工作流程显示,炎症性肠病患者的失生症
Jinhui Yuan1, Boyan Sun1, Murong Li2
1State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, 102206, Beijing, China.
NPJ biofilms and microbiomes
|April 23, 2025
概括
一个新的工作流,优化唾液元蛋白质样本分析 (OSaMPle),增强了口腔样本中的细菌识别. 这种方法揭示了与炎症性肠病 (IBD) 相关的口腔微生物组中的关键蛋白质变化.
科学领域:
- 微生物组研究的研究.
- 甲型蛋白质组学是什么意思?
- 口腔健康 口腔健康是指口腔健康.
背景情况:
- 口腔微生物组与炎症状况有关,例如炎症性肠病 (IBD).
- 甲型蛋白质组学可以识别口腔微生物群中的功能转变,有助于肠道疾病.
- 从富含宿主蛋白质的口服样本中丰富细菌细胞是一个重大挑战.
研究的目的:
- 开发一个优化唾液元蛋白质样本分析工作流程 (OSaMPle),以改善细菌丰富和减少口腔样本中的宿主干扰.
- 分析IBD患者口腔元蛋白组中的功能变化.
- 识别与疾病相关的微生物蛋白质,以发现潜在的生物标志物.
主要方法:
- 开发并实施了OSaMPle工作流程,用于处理口腔样品 (唾液,口水).
- 将OSaMPle与用于细菌和蛋白质识别的传统方法进行比较.
- 应用OSaMPle分析IBD患者的口水样本.
主要成果:
- 与传统方法相比,OSaMPle显著改善了细菌 (3.2倍) 和蛋白质 (1.7倍) 的识别.
- 在IBD患者中观察到细菌蛋白表达的显著变化.
- 在IBD患者中,参与脂肪酸延长的Peptostreptococcus蛋白质的丰度降低,TCA周期中Neisseria蛋白质的丰度增加.
结论:
- OSaMPle的工作流有效丰富唾液细菌,并减少宿主蛋白干扰,以进行深入的口腔元蛋白组分析.
- OSaMPle可以识别与IBD相关的功能微生物组变化.
- 这种工作流适用于小量样本,高通量自动化,并有望用于识别用于疾病检测的口腔微生物群生物标志物.
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