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Gene expression profile of F4/80+ cells isolated from tumors implanted in wild type and St2-/- mouse

ABSTRACT: We report a novel mechanism of the interaction between perivascular cell and TAMs in promoting metastasis through the IL-33-ST2-dependent pathway. IL-33 was the highest up-regulated gene through activation of SOX7 transcription factor in PDGF-BB-stimulated pericytes. Gain- and loss-of-function experiments validate that IL-33 promotes metastasis through recruitment of TAMs. Il33-/- deficient mice showed impaired TAM recruitment and metastasis. Pharmacological inhibition of the IL-33-ST2 signalling by a soluble ST2 significantly inhibited TAMs and metastasis. Genetic deletion of host IL-33 in mice also blocked PDGF-BB-induced TAM recruitment and metastasis. High IL-33 in human cancers correlated with poor survival prognosis. These findings shed novel mechanisms of tumour stroma in promoting metastasis and have therapeutic implications for cancer therapy.

ORGANISM(S): Mus musculus

PROVIDER: GSE69402 | GEO | 2016/05/03

SECONDARY ACCESSION(S): PRJNA285414

REPOSITORIES: GEO

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