作者: Ji Cao , Rong Dong , Li Jiang , Yanling Gong , Meng Yuan
DOI: 10.1158/2326-6066.CIR-18-0145
关键词: Cell biology 、 Gene knockdown 、 Gene expression profiling 、 Cell 、 Chemistry 、 Carcinogenesis 、 M2 Macrophage 、 Phosphorylation 、 Transcriptome 、 Downregulation and upregulation
摘要: M2 polarization of macrophages is essential for their function in immunologic tolerance, which might promote tumorigenesis. However, the molecular mechanism behind process not fully understood. Given that several lines evidence have suggested long noncoding RNAs (lncRNAs) could be involved regulating immune cell differentiation and function, current study aimed to identify lncRNAs specifically modulate macrophage polarization. By utilizing a series cell-based models, total 25 with altered expression were documented based on lncRNA microarray-based profiling assays. Among them, lncRNA-MM2P was only upregulated during but downregulated M1 macrophages. Knockdown blocked cytokine-driven weakened angiogenesis-promoting feature by reducing phosphorylation STAT6. Moreover, manipulating impaired macrophage-mediated promotion tumorigenesis, tumor growth vivo, angiogenesis. Collectively, our identifies as modulator required uncovers its role macrophage-promoted