Fig. 4From: The critical roles of activated stellate cells-mediated paracrine signaling, metabolism and onco-immunology in pancreatic ductal adenocarcinomaImmunosuppressive modulator role of PSCs. PSCs induce TME remodeling, dense matrix caused hypoxia and hypo-vascularity impair T cells infiltration and their nutrition obtaining; multifactorial T cell exhaustion attenuates Teff functions; PSCs-derived suppressive factors (such as IL-6, CXCL12), suppressive signaling and recruitment of suppressive cells (such as MDSCs, Treg cells, TAMs) create an immunosuppressive TME in PDACBack to article page