IL‐10 derived from M2 macrophage promotes cancer stemness via JAK1/STAT1/NF‐κB/Notch1 pathway in non‐small cell lung cancer

2019/01/24 by Yang Li, Li Yang, Ying Dong +14 · 28 citations
Immunology and Microbiology · Biochemistry, Genetics and Molecular Biology · Medicine · #Immune cells in cancer #Epigenetics and DNA Methylation #Cytokine Signaling Pathways and Interactions

paper · doi:10.1002/ijc.32151

Abstract

Tumor-associated macrophages (TAMs), key immune cells in the tumor microenvironment, are shown to be closely correlated with the progression of non-small cell lung cancer (NSCLC). Cancer stem cells (CSCs) can contribute to NSCLC progression as well. We aimed to clarify whether TAMs promote the progression of NSCLC by mainly affecting the activities of CSCs. We found that TAM-like cells promoted CSC-like properties in NSCLC cells in vitro, which was mediated by TAM-derived IL-10. TAM-derived IL-10 promoted CSC-like properties of NSCLC cells through JAK1/STAT1/NF-κB/Notch1 signaling. Blockade of IL-10/JAK1 signaling inhibited TAM-mediated NSCLC tumor growth in vivo, and the TAM-mediated expression of CSC-related and mesenchymal-related genes in NSCLC. Lastly, expression levels of these signaling molecules were significantly correlated with survival of NSCLC patients. Therefore, IL-10/JAK1 signaling might be a potential therapeutic target for NSCLC treatment.

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