Interspecies Single-Cell RNA-Seq Analysis Reveals the Novel Trajectory of Osteoclast Differentiation and Therapeutic Targets

Omata Y, Okada H, Uebe S, Izawa N, Ekici AB, Sarter-Zaiss K, Saito T, Schett G, Tanaka S, Zaiss M (2022)

Publication Type: Journal article

Publication year: 2022

Journal

JBMR Plus Wiley

DOI: 10.1002/jbm4.10631

Abstract

Bone turnover is finely tuned by cells in the bone milieu, including osteoblasts, osteoclasts, and osteocytes. Osteoclasts are multinucleated giant cells with a bone-resorbing function that play a critical role in regulating skeletal homeostasis. Osteoclast differentiation is characterized by dramatic changes in morphology and gene expression following receptor activator of nuclear factor-kappa-Beta ligand (RANKL) stimulation. We performed single-cell RNA-sequencing analyses of human and murine osteoclast-lineage cells (OLCs) and found that OLCs in the mitotic phase do not differentiate into mature osteoclasts. We also identified a guanosine triphosphatase (GTPase) family member, RAB38, as a highly expressed molecule in both human and murine osteoclast clusters; RAB38 gene expression is associated with dynamic changes in histone modification and transcriptional regulation. Silencing Rab38 expression by using short hairpin RNA (shRNA) inhibited osteoclast differentiation and maturation. In summary, we established an integrated fate map of human and murine osteoclastogenesis; this will help identify therapeutic targets in bone diseases. (c) 2022 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.

Authors with CRIS profile

Steffen Uebe Institute of Human Genetics Arif Bülent Ekici Institute of Human Genetics Kerstin Sarter-Zaiss Department of Medicine 3 – Rheumatology and Immunology Georg Schett Lehrstuhl für Innere Medizin III Mario Zaiss Department of Medicine 3 – Rheumatology and Immunology

Involved external institutions

University of Tokyo JP Japan (JP)

How to cite

APA:

Omata, Y., Okada, H., Uebe, S., Izawa, N., Ekici, A.B., Sarter-Zaiss, K.,... Zaiss, M. (2022). Interspecies Single-Cell RNA-Seq Analysis Reveals the Novel Trajectory of Osteoclast Differentiation and Therapeutic Targets. JBMR Plus. https://dx.doi.org/10.1002/jbm4.10631

MLA:

Omata, Yasunori, et al. "Interspecies Single-Cell RNA-Seq Analysis Reveals the Novel Trajectory of Osteoclast Differentiation and Therapeutic Targets." JBMR Plus (2022).

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