结合粘膜微生物组和宿主多基因组数据,显示了儿童性结肠炎的预后潜力
Maria Kulecka1,2, Jill O'Sullivan1,2,3, Rachel Fitzgerald1,2
1APC Microbiome Ireland, University College Cork, Cork, Ireland.
使用微生物和宿主数据,可以预测儿童的性结肠炎复发. 诊断时的下肠细菌多样性和特定的口腔细菌表明复发风险更高,从而使早期的治疗策略成为可能.
科学领域:
- 儿科胃肠病学 儿科胃肠病学
- 微生物组研究 微生物组研究
- 免疫学 免疫学 免疫学
背景情况:
- 目前的小儿性结肠炎 (UC) 治疗方法仅在50%的病例中实现了缓解.
- 早期预测复发可能允许及时进行免疫抑制疗法.
研究的目的:
- 为了确定性结肠炎复发的预测生物标志物,在以前没有接受过治疗的儿童中.
- 在儿科UC中研究宿主因素和肠道微生物群之间的相互作用.
主要方法:
- 收集了56名未接受过治疗的儿童的肠道活检.
- 进行了定量微生物分析,宿主表观基因组学,转录基因组学和基因定型.
- 对精选细菌进行了体外和体内实验.
主要成果:
- 在复发儿童中观察到较低的基线细菌多样性和减少的酸盐生产者.
- 增加口腔相关细菌的丰富性,包括*Veillonella parvula*,与炎症有关.
- 微生物群组成显示了与未来复发的最强相关性,其次是宿主表观基因组和转录基因组.
- 结合微生物组和表观基因组数据的机器学习模型改善了复发预测.
结论:
- 主体-微生物相互作用对儿科性结肠炎具有显著的预后潜力.
- 复发儿童的结肠细菌多样性减少可能会被亲炎性口腔细菌利用.
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