Transcriptomics

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Identification of TREM1+CD163+ myeloid cells as a deleterious immune subset in HCC [bulk_RNA-seq]


ABSTRACT: Hepatocellular carcinoma (HCC) is an inflammation-associated cancer arising from viral and non-viral etiologies. Expansion of suppressive myeloid cells is a hallmark of chronic inflammation and cancer, but their heterogeneity in HCC is not fully resolved and might underlie immunotherapy resistance in the steatohepatitis setting. Here, we present a high resolution atlas of hepatic innate immune cells from patients with HCC that unravels a steatohepatitis contexture characterized by influx of inflammatory and immunosuppressive myeloid cells. A discrete myeloid cell population identified by selective expression of TREM1 and CD163 expands in steatohepatitis-HCC. We refer to this population as TREM1+ regulatory myeloid cells (Mreg), as it potently suppresses T cell effector functions, highly expresses TGFB1 and IL13RA1 and localizes to HCC fibrotic lesions.

ORGANISM(S): Homo sapiens

PROVIDER: GSE245905 | GEO | 2024/02/04

REPOSITORIES: GEO

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