人类质母细胞瘤和脑膜瘤中的特定内微生物组特征:关于肠-大脑微生物轴的证据
Dalila Mehelleb1,2, Abderezak Ghidouche1,3, Simone Baldi4
1University of Bejaia, Faculty of Natural and Life Sciences, Bejaia 06000, Algeria.
International journal of molecular sciences
|December 11, 2025
概括
肠道和瘤微生物组在脑瘤患者和健康人群之间存在差异. 特定的细菌在质母细胞瘤和脑膜瘤中发生了变化,这表明它们可能在脑瘤的发展和管理中发挥作用.
科学领域:
- 微生物学 微生物学
- 在瘤学瘤学.
- 基因组学就是基因组学.
背景情况:
- 脑瘤 (BTs),包括质母细胞瘤 (GBM) 和脑膜瘤 (MGM),代表着一个重要的全球健康挑战.
- 肠道微生物群对癌症的影响是公认的,但其在BTs中的特定作用在很大程度上尚未被探索.
- 了解内微生物组 (ItM) 对于阐明BT病原性至关重要.
研究的目的:
- 在GBM和MGM患者中描述肠道微生物群 (GM) 和ITM.
- 为了比较BT患者和健康对照 (HCs) 之间的微生物概况.
- 调查GM和ITM之间的关系及其对BT管理的潜在临床影响.
主要方法:
- 使用16S rRNA基因测序,从新鲜组织样本中分析GM和ItM.
- 从9名GBM患者,18名MGM患者和12名年龄和性别匹配的HC患者收集了样本.
- 生物信息分析包括多样性评估,差异丰度测试和Venn分析.
主要成果:
- 与HC相比,BT患者的转基因α多样性降低,微生物群落不同,Verrucomicrobiota和Synergistaceae的丰富显著,Lachnospiraceae和Peptostreptococcaceae的枯竭.
- GBM和MGM显示了特定的GM变化:GBM患者减少了Peptostreptococcaceae和Eubacterium hallii群,而MGM患者增加了Synergistia和Erysipelatoclostridium.
- ItM 分析显示出不同的组成:GBM 组织中含有多种蛋白质细菌,Actinomycetota 和 Campylobacterota,其中包含 Burkholderia-Caballeronia-Paraburkholderia,Helicobacter 和 Leifsonia.
- 在MGM组织中,Bacillota和Bacteroidota的含量较高,其中Bacteroides和Blautia占主导地位.
- 在GBM (91个属) 和MGM (105个属) 中观察到GM和ItM之间存在显著的重叠.
结论:
- 在脑瘤患者中,肠道和内微生物组发生了显著的改变.
- 显著的微生物特征将GBM与MGM以及健康对照区分开来.
- 肠道和瘤之间的共享微生物属表明潜在的联系影响了BT发展,并为新的治疗策略提供了途径.
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