Transcriptomics

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Cellular Architecture of Human Brain Metastases


ABSTRACT: Here we present an integrative analysis of 15 human parenchymal BrMs as a resource, generated by single-cell transcriptomics, and complemented with two mouse models- and in silico- approaches. We interrogated the composition of BrM niches, molecularly defined the blood-tumor interface, and reveal stromal immunosuppressive states, enriched with infiltrated T cells and macrophages. Specific single-cell interrogation of metastatic tumor cells provides a novel framework of 8 functional cell programs that coexist or anticorrelate. Collectively, these programs delineate two functional BrM archetypes, one proliferative and the other inflammatory, that are evidently shaped through tumor-immune interactions. Our resource provides a foundation to understand the molecular basis of BrM in patients with tumor cell-intrinsic and host environmental- traits.

ORGANISM(S): Mus musculus Homo sapiens

PROVIDER: GSE186344 | GEO | 2021/11/12

REPOSITORIES: GEO

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