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Microbial metagenomic shifts in children with acute lymphoblastic leukaemia during induction therapy and predictive biomarkers for infection.

Authors :
Wang, Huidi
Zhang, Yajie
Zhou, Qianyi
Yu, Lihua
Fu, Jingxiang
Lin, Danna
Huang, Lulu
Lai, Xiaorong
Wu, Li
Zhang, Jingxin
Zi, Juan
Liao, Xu
Huang, Siying
Xie, Yugu
He, Yan
Yang, Lihua
Source :
Annals of Clinical Microbiology & Antimicrobials; 6/15/2024, Vol. 23 Issue 1, p1-10, 10p
Publication Year :
2024

Abstract

Background: Emerging evidence has indicated a link between the gut microbiota and acute lymphoblastic leukaemia (ALL). However, the acute changes in gut microbiota during chemotherapy and the predictive value of baseline gut microbiota in infectious complication remain largely unknown. Methods: Faecal samples (n = 126) from children with ALL (n = 49) undergoing induction chemotherapy were collected at three timepoints, i.e., initiation of chemotherapy (baseline, T0), 7 days (T1) and 33 days (T2) after initiation of chemotherapy. Gut microbiome profile was performed via metagenomic shotgun sequencing. The bioBakery3 pipeline (Kneaddata, Metaphlan 3 and HUMAnN) was performed to assign taxonomy and functional annotations. Gut microbiome at T0 were used to predict infection during chemotherapy. Results: The microbial diversities and composition changed significantly during chemotherapy, with Escherichia coli, Klebsiella pneumoniae and Bifidobacterium longum being the most prominent species. The microbial metabolic pathways were also significantly altered during chemotherapy, including the pathway of pyruvate fermentation to acetate and lactate, and assimilatory sulfate reduction pathway. The receiver operating characteristic (ROC) models based on Bifidobacterium longum at T0 could predict infectious complications during the first month of chemotherapy with the area under the curve (AUC) of 0.720. Conclusions: Our study provides new insights into the acute changes in microbial and functional characteristics in children with ALL during chemotherapy. The baseline gut microbiota could be potential biomarkers for infections during chemotherapy. Trial registration: The study was approved by the Ethics Committee of Zhujiang Hospital, Southern Medical University (2021-KY-171-01) and registered on http://www.chictr.org.cn (ChiCTR2200065406, Registration Date: November 4, 2022). [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14760711
Volume :
23
Issue :
1
Database :
Complementary Index
Journal :
Annals of Clinical Microbiology & Antimicrobials
Publication Type :
Academic Journal
Accession number :
177897797
Full Text :
https://doi.org/10.1186/s12941-024-00717-z