Blood transcriptomics identifies immune signatures indicative of infectious complications in childhood cancer patients with febrile neutropenia

Bibliographic Details
Title: Blood transcriptomics identifies immune signatures indicative of infectious complications in childhood cancer patients with febrile neutropenia
Authors: Gabrielle M Haeusler, Alexandra L Garnham, Connie SN Li‐Wai‐Suen, Julia E Clark, Franz E Babl, Zoe Allaway, Monica A Slavin, Francoise Mechinaud, Gordon K Smyth, Bob Phillips, Karin A Thursky, Marc Pellegrini, Marcel Doerflinger
Source: Clinical & Translational Immunology, Vol 11, Iss 5, Pp n/a-n/a (2022)
Publisher Information: Wiley, 2022.
Publication Year: 2022
Collection: LCC:Immunologic diseases. Allergy
Subject Terms: bacteraemia, blood transcriptome analysis, febrile neutropenia, immune profiling, paediatric cancer, RNAseq, Immunologic diseases. Allergy, RC581-607
More Details: Abstract Objectives Febrile neutropenia (FN) is a major cause of treatment disruption and unplanned hospitalization in childhood cancer patients. This study investigated the transcriptome of peripheral blood mononuclear cells (PBMCs) in children with cancer and FN to identify potential predictors of serious infection. Methods Whole‐genome transcriptional profiling was conducted on PBMCs collected during episodes of FN in children with cancer at presentation to the hospital (Day 1; n = 73) and within 8–24 h (Day 2; n = 28) after admission. Differentially expressed genes as well as gene pathways that correlated with clinical outcomes were defined for different infectious outcomes. Results Global differences in gene expression associated with specific immune responses in children with FN and documented infection, compared to episodes without documented infection, were identified at admission. These differences resolved over the subsequent 8–24 h. Distinct gene signatures specific for bacteraemia were identified both at admission and on Day 2. Differences in gene signatures between episodes with bacteraemia and episodes with bacterial infection, viral infection and clinically defined infection were also observed. Only subtle differences in gene expression profiles between non‐bloodstream bacterial and viral infections were identified. Conclusion Blood transcriptome immune profiling analysis during FN episodes may inform monitoring and aid in defining adequate treatment for different infectious aetiologies in children with cancer.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2050-0068
Relation: https://doaj.org/toc/2050-0068
DOI: 10.1002/cti2.1383
Access URL: https://doaj.org/article/d282565f268044bcb2efbde27d767a44
Accession Number: edsdoj.282565f268044bcb2efbde27d767a44
Database: Directory of Open Access Journals
More Details
ISSN:20500068
DOI:10.1002/cti2.1383
Published in:Clinical & Translational Immunology
Language:English