Fig. 1From: MicroRNAs: emerging driver of cancer perineural invasionSchematic representation of perineural niche facilitating PNI. Various molecules (neurotrophic factors, neurotransmitters, chemokine, MMPs) and cells (fibroblasts, macrophages, Treg cells, mast cells) in the nerve-tumor niche impelled tumor cell displayed a tendency to encroach on nervesBack to article page