Abstract
The composition of the gut microbiome influences the clinical course after allogeneic hematopoietic stem cell transplantation (HSCT), but little is known about the relevance of skin microorganisms. In a single-center, observational study, we recruited a cohort of 50 patients before undergoing conditioning treatment and took both stool and skin samples up to one year after HSCT. We could confirm intestinal dysbiosis following HSCT and report that the skin microbiome is likewise perturbed in HSCT-recipients. Overall bacterial colonization of the skin was decreased after conditioning. Particularly patients that developed acute skin graft-versus-host disease (aGVHD) presented with an overabundance of Staphylococcus spp. In addition, a loss in alpha diversity was indicative of aGVHD development already before disease onset and correlated with disease severity. Further, co-localization of CD45+ leukocytes and staphylococci was observed in the skin of aGVHD patients even before disease development and paralleled with upregulated genes required for antigen-presentation in mononuclear phagocytes. Overall, our data reveal disturbances of the skin microbiome as well as cutaneous immune response in HSCT recipients with changes associated with cutaneous aGVHD.
Originalsprog | Engelsk |
---|---|
Tidsskrift | Leukemia |
Vol/bind | 36 |
Udgave nummer | 11 |
Sider (fra-til) | 2705-2714 |
Antal sider | 10 |
ISSN | 0887-6924 |
DOI | |
Status | Udgivet - nov. 2022 |
Udgivet eksternt | Ja |
Bibliografisk note
Funding Information:We thank the Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna as well as Biomedical Sequencing Facility (BSF) at CeMM for assistance with next-generation sequencing. This work was supported by funds of the Austrian Science Fund (FWF, P31494), the Oesterreichische Nationalbank (Austrian Central Bank; Anniversary Fund; project number, 17872), and by the Innovation Fund of the Austrian Academy of Sciences (ÖAW; project number, IF_2017_29). NB was supported by the ESCMID Research Grant 2020 of the European Society of Clinical Microbiology and Infectious Diseases. SK received funding from the Austrian Science Fund, FWF, via the Doctoral Program Cell Communication in Health and Disease (W 1205-B09), and the Special Research Programs Chromatin Landscapes (F6104) and Immunothrombosis (F5410).
Funding Information:
We thank the Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna as well as Biomedical Sequencing Facility (BSF) at CeMM for assistance with next-generation sequencing. This work was supported by funds of the Austrian Science Fund (FWF, P31494), the Oesterreichische Nationalbank (Austrian Central Bank; Anniversary Fund; project number, 17872), and by the Innovation Fund of the Austrian Academy of Sciences (ÖAW; project number, IF_2017_29). NB was supported by the ESCMID Research Grant 2020 of the European Society of Clinical Microbiology and Infectious Diseases. SK received funding from the Austrian Science Fund, FWF, via the Doctoral Program Cell Communication in Health and Disease (W 1205-B09), and the Special Research Programs Chromatin Landscapes (F6104) and Immunothrombosis (F5410).
Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Nature Limited.