Unraveling heterogeneity in the aging hematopoietic stem cell compartment: an insight from single-cell approaches

Yang, F., Nourse, C., Helgason, G. V. and Kirschner, K. (2023) Unraveling heterogeneity in the aging hematopoietic stem cell compartment: an insight from single-cell approaches. HemaSphere, 7(6), e895. (doi: 10.1097/hs9.0000000000000895) (PMID:37304939) (PMCID:PMC10256339)

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Specific cell types and, therefore, organs respond differently during aging. This is also true for the hematopoietic system, where it has been demonstrated that hematopoietic stem cells alter a variety of features, such as their metabolism, and accumulate DNA damage, which can lead to clonal outgrowth over time. In addition, profound changes in the bone marrow microenvironment upon aging lead to senescence in certain cell types such as mesenchymal stem cells and result in increased inflammation. This heterogeneity makes it difficult to pinpoint the molecular drivers of organismal aging gained from bulk approaches, such as RNA sequencing. A better understanding of the heterogeneity underlying the aging process in the hematopoietic compartment is, therefore, needed. With the advances of single-cell technologies in recent years, it is now possible to address fundamental questions of aging. In this review, we discuss how single-cell approaches can and indeed are already being used to understand changes observed during aging in the hematopoietic compartment. We will touch on established and novel methods for flow cytometric detection, single-cell culture approaches, and single-cell omics.

Item Type:Articles
Additional Information:KK is funded by a Blood Cancer U.K. grant (23001), an MRC grant (MR/W000148/1), a Tenovus Scotland grant (S19-07), and CRUK Scotland Centre funding (CTRQQR-2021\100006). FY and KK received funding from NHS GG&C Endowments.
Glasgow Author(s) Enlighten ID:Kirschner, Dr Kristina and Nourse, Dr Craig and Helgason, Professor Vignir
Authors: Yang, F., Nourse, C., Helgason, G. V., and Kirschner, K.
College/School:College of Medical Veterinary and Life Sciences > School of Cancer Sciences
Journal Name:HemaSphere
Publisher:Lippincott, Williams and Wilkins
ISSN (Online):2572-9241
Published Online:25 May 2023
Copyright Holders:Copyright © 2023 the Author(s).
First Published:First published in HemaSphere 7(6):e895
Publisher Policy:Reproduced under a Creative Commons license

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
307081Elucidating metabolomics changes in myeloproliferative neoplasmsKristina KirschnerTenovus Scotland (TENOVUS)S19-07CS - Epigenetics
319218Accurate molecular and phenotypic characterisation of gene-specific effects in longitudinal samples of CHIPKristina KirschnerBlood Cancer UK (BLOODCJK)23001SCS - Paul O'Gorman Leukaemia Research Centre
315960CRUK Centre Renewal 2021Owen SansomCancer Research UK (CRUK)CTRQQR-2021\100006SCS - Beatson Institute for Cancer Research