» Articles » PMID: 29518185

Gut Microbiome Composition Predicts Infection Risk During Chemotherapy in Children With Acute Lymphoblastic Leukemia

Abstract

Background: Myelosuppression-related infections remain important causes of morbidity and mortality in children with acute lymphoblastic leukemia (ALL).

Methods: By analyzing fecal samples collected at diagnosis and after each of the initial 3 phases of chemotherapy, we evaluated the role of gut microbiota in predicting infections in 199 children with newly diagnosed ALL. The bacterial 16S rRNA gene was analyzed by high-depth sequencing to determine the diversity and composition of the microbiome.

Results: After the induction and reinduction I phases of chemotherapy, microbial diversity decreased significantly relative to the prechemotherapy value. After chemotherapy, the relative abundance of certain bacterial taxa (eg, Bacteroidetes) decreased significantly, whereas that of other taxa (eg, Clostridiaceae and Streptococcaceae) increased. A baseline gut microbiome characterized by Proteobacteria predicted febrile neutropenia. Adjusting for the chemotherapy phase and ALL risk level, Enterococcaceae dominance (relative abundance ≥30%) predicted significantly greater risk of subsequent febrile neutropenia and diarrheal illness, whereas Streptococcaceae dominance predicted significantly greater risk of subsequent diarrheal illness.

Conclusions: In children undergoing therapy for newly diagnosed ALL, the relative abundance of Proteobacteria before chemotherapy initiation predicts development of febrile neutropenia, and domination of the gut microbiota by Enterococcaceae or Streptococcaceae at any time during chemotherapy predicts infection in subsequent phases of chemotherapy.

Clinical Trial Registration: NCT00549848.

Citing Articles

Understanding gut Microbiome changes in Korean children, adolescents, and young adults with hematologic malignancies.

Park M, Jung J, Lee J, Lee E, Lee H, Eom H Ann Hematol. 2025; .

PMID: 40069438 DOI: 10.1007/s00277-025-06293-2.


Microbiome Modulation in Pediatric Leukemia: Impact on Graft-Versus-Host Disease and Treatment Outcomes: A Narrative Review.

Todor S, Ichim C Children (Basel). 2025; 12(2).

PMID: 40003268 PMC: 11854176. DOI: 10.3390/children12020166.


Gut Microbiome as a Potential Marker of Hematologic Recovery Following Induction Therapy in Acute Myeloid Leukemia Patients.

Salvestrini V, Conti G, DAmico F, Cristiano G, Candela M, Cavo M Cancer Med. 2025; 14(3):e70501.

PMID: 39865898 PMC: 11770270. DOI: 10.1002/cam4.70501.


The role of the gut microbiota in infectious complications during immunochemotherapy for diffuse large B-cell lymphoma.

Sun M, Tang D, Jia J, Wu Y, Yu C, Qiu R BMC Cancer. 2024; 24(1):1570.

PMID: 39716091 PMC: 11664936. DOI: 10.1186/s12885-024-13344-w.


Effect of Matrine on growth performance, gut health, and gut microbiota in chickens infected with avian pathogenic Escherichia coli.

Mao N, Yu Y, Cui J, He J, Yang Y, Wang D Poult Sci. 2024; 104(1):104520.

PMID: 39546922 PMC: 11609370. DOI: 10.1016/j.psj.2024.104520.


References
1.
DeSantis T, Hugenholtz P, Larsen N, Rojas M, Brodie E, Keller K . Greengenes, a chimera-checked 16S rRNA gene database and workbench compatible with ARB. Appl Environ Microbiol. 2006; 72(7):5069-72. PMC: 1489311. DOI: 10.1128/AEM.03006-05. View

2.
Young V, Schmidt T . Antibiotic-associated diarrhea accompanied by large-scale alterations in the composition of the fecal microbiota. J Clin Microbiol. 2004; 42(3):1203-6. PMC: 356823. DOI: 10.1128/JCM.42.3.1203-1206.2004. View

3.
Antonopoulos D, Huse S, Morrison H, Schmidt T, Sogin M, Young V . Reproducible community dynamics of the gastrointestinal microbiota following antibiotic perturbation. Infect Immun. 2009; 77(6):2367-75. PMC: 2687343. DOI: 10.1128/IAI.01520-08. View

4.
Buffie C, Bucci V, Stein R, McKenney P, Ling L, Gobourne A . Precision microbiome reconstitution restores bile acid mediated resistance to Clostridium difficile. Nature. 2014; 517(7533):205-8. PMC: 4354891. DOI: 10.1038/nature13828. View

5.
Taur Y, Jenq R, Ubeda C, van den Brink M, Pamer E . Role of intestinal microbiota in transplantation outcomes. Best Pract Res Clin Haematol. 2015; 28(2-3):155-61. PMC: 4656136. DOI: 10.1016/j.beha.2015.10.013. View