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了解韩国儿童,青少年和年轻成人患有血液性恶性瘤的肠道微生物组变化
Meerim Park1, Jongheon Jung2, Jun Ah Lee1
1Department of Pediatrics, Center for Pediatric Cancer, National Cancer Center, Goyang, Korea.
Annals of hematology
|March 12, 2025
概括
患有血液性恶性瘤的儿童和年轻成年人肠道微生物组的变化会影响治疗结果. 较低的多样性和改变的组成与感染和并发症有关,这表明微生物组调节可以改善护理.
科学领域:
- 微生物学 微生物学
- 在瘤学瘤学.
- 儿科 儿科 儿科
背景情况:
- 血液性恶性瘤是儿童和年轻人 (AYA) 的严重疾病.
- 肠道微生物组的改变越来越被认为是癌症治疗并发症的重要因素.
- 了解这些变化对于改善患者治疗结果至关重要.
研究的目的:
- 调查肠道微生物组组成与韩国AYA在治疗期间患有血液恶性瘤的感染/免疫学并发症之间的联系.
- 分析化疗和造血干细胞移植如何影响肠道微生物多样性和结构.
主要方法:
- 从26名患者和10名健康的兄弟姐妹收集了便样本.
- 使用16S rRNA基因测序来分析肠道微生物组合和多样性.
- 微生物多样性指数 (Chao1,Shannon) 和成分在不同治疗阶段以及患者和对照组之间进行了比较.
主要成果:
- 与兄弟姐妹相比,患者在诊断时表现出较低的Lachnospiraceae和更高的Enterococcaceae丰度.
- 微生物多样性 (Chao1,Shannon) 从诊断到诱导化疗结束时减少.
- 诱导期间的发烧与较低的基线多样性和较高的Ruminococcus g4.
- 抗生素的使用 (美罗,皮佩拉西林/塔扎巴克坦) 改变了诱导后的微生物组合.
- 与兄弟姐妹相比,在条件化之前观察到Chao指数和β多样性的显著差异.
- 在干细胞移植期间,多样性在第14天下降,但在第60天恢复.
结论:
- 肠道微生物组的多样性和组成在患有血液性恶性瘤的儿科和AYA患者的治疗结果中起着关键作用.
- 特定的微生物模式与治疗相关的并发症,如发烧有关.
- 抗生素治疗在治疗期间显著影响肠道微生物群.
- 这些发现表明肠道微生物组调节的潜力,以提高治疗疗效和减少并发症.
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