Single-cell RNA sequencing reveals the cellular and molecular heterogeneity of treatment-naïve primary osteosarcoma in dogs.
Commun Biol
; 7(1): 496, 2024 Apr 24.
Article
in En
| MEDLINE
| ID: mdl-38658617
ABSTRACT
Osteosarcoma (OS) is a heterogeneous, aggressive malignancy of the bone that disproportionally affects children and adolescents. Therapeutic interventions for OS are limited, which is in part due to the complex tumor microenvironment (TME). As such, we used single-cell RNA sequencing (scRNA-seq) to describe the cellular and molecular composition of the TME in 6 treatment-naïve dogs with spontaneously occurring primary OS. Through analysis of 35,310 cells, we identified 41 transcriptomically distinct cell types including the characterization of follicular helper T cells, mature regulatory dendritic cells (mregDCs), and 8 tumor-associated macrophage (TAM) populations. Cell-cell interaction analysis predicted that mregDCs and TAMs play key roles in modulating T cell mediated immunity. Furthermore, we completed cross-species cell type gene signature homology analysis and found a high degree of similarity between human and canine OS. The data presented here act as a roadmap of canine OS which can be applied to advance translational immuno-oncology research.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Bone Neoplasms
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Osteosarcoma
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Sequence Analysis, RNA
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Dog Diseases
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Single-Cell Analysis
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Tumor Microenvironment
Limits:
Animals
Language:
En
Journal:
Commun Biol
Year:
2024
Document type:
Article
Affiliation country: