恶性炎的微生物和免疫景观:从肠道,膀和炎液分析的见解
Jina Yun1, Ju-Sun Song2, Jeong-Ju Yoo3
1Division of Hematology-Oncology, Department of Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon 14584, Republic of Korea.
Cancers
|April 26, 2025
概括
恶性炎含有极少的细菌,挑战微生物组分析. 研究结果表明,在炎中存在免疫抑制的环境,肠道微生物群和腹转移之间存在潜在的联系.
科学领域:
- 在瘤学瘤学.
- 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:
- 晚期癌症中的恶性炎与预后不佳相关.
- 病原发生涉及瘤阻塞,血管透性和荷尔蒙因素,但仍然不完全理解.
- 肠道和膀微生物组在恶性炎中的作用尚不清楚.
研究的目的:
- 调查肠道和膀微生物组与恶性瘤之间的相关性.
- 分析抗性液体免疫微环境中的变化.
- 探索微生物群和腹转移之间的潜在联系.
主要方法:
- 来自66名癌症患者的便,尿液和性流体样本的16S rRNA测序 (20名患有恶性性,46名没有).
- 流式细胞计量用于表征性流体中的免疫细胞子集.
- 微生物群多样性和免疫细胞种群在阿斯基特和非阿斯基特组之间的比较.
主要成果:
- 恶性炎样本显示细菌负载非常低,表明大多是无菌的环境.
- 根据瘤或转移状态,没有观察到肠道或膀微生物群的整体多样性有显著差异.
- 一个趋势显示,腹膜转移的患者中,Clostridia和Gammaproteobacteria的丰富.
- 与肝硬化瘤相比,酸性液体显示T细胞和NK细胞数量减少.
结论:
- 恶性炎的特点是细菌生物量最小,使微生物组分析复杂化.
- 虽然全球微生物组的变化并不明显,但特定的细菌种类可能与腹膜转移有关.
- 抗性液体表现出一种免疫抑制的微环境.
- 需要进一步的多组学研究来澄清微生物群在恶性炎中的作用.
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