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Single-Cell RNA Sequencing: Unravelling the Bone One Cell at a Time


PURPOSE OF REVIEW: Bone is a complex tissue populated by a highly heterogeneous mix of cell types in different compartments. The endosteal compartment is a key site for bone remodelling and provides a supportive microenvironment to harbour haematopoietic and mesenchymal stem cells, as well as cancer cells that grow in bone. The purpose of this review is to summarize recent findings of studies in bone using single-cell RNA sequencing and emergent spatial RNA sequencing to describe different bone-resident cell types and their molecular programs. RECENT FINDINGS: Single-cell RNA sequencing identified novel and transcriptionally distinct cell clusters within different bone cell lineages, including MSCs, osteoblasts, chondrocytes, fibroblasts, osteoclasts and cells of the vasculature. Spatial transcriptomics methods provide information on the localization of the different cell populations. Single-cell transcriptomics provided valuable insights into long-standing knowledge gaps in the cellular heterogeneity of bone-resident cells in unprecedented detail, paving the way for studies to further investigate the different cell populations and to develop cell-based therapies for bone diseases.

Type Journal
ISBN 1544-2241 (Electronic) 1544-1873 (Linking)
Authors Chai, R. C.
Publisher Name Current Osteoporosis Reports
Published Date 2022-10-31
Published Volume 20
Published Issue 5
Published Pages 356-362
Status Published in-print
DOI 10.1007/s11914-022-00735-w
URL link to publisher's version