Single-cell gene and isoform expression analysis reveals signatures of ageing in haematopoietic stem and progenitor cells.

ABSTRACT: Single-cell approaches have revealed that the haematopoietic hierarchy is a continuum of differentiation, from stem cell to committed progenitor, marked by changes in gene expression. However, many of these approaches neglect isoform-level information and thus do not capture the extent of alternative splicing within the system. Here, we present an integrated short- and long-read single-cell RNA-seq analysis of haematopoietic stem and progenitor cells. We demonstrate that over half of genes detected in standard short-read single-cell analyses are expressed as multiple, often functionally distinct, isoforms, including many transcription factors and key cytokine receptors. We observe global and HSC-specific changes in gene expression with ageing but limited impact of ageing on isoform usage.

SUBMITTER: Mincarelli L 

PROVIDER: S-EPMC10209181 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature