Skip to main content
. 2021 Aug 20;12:715727. doi: 10.3389/fimmu.2021.715727

Figure 1.

Figure 1

Immunosuppressive microenvironment in GIST is mediated by IDO and M2 macrophages. IDO expression is mediated through Etv4 and KIT activation, which results in an overexpression of IDO. IDO is responsible for a recruitment of regulatory T cells, an inhibition of CD8+ T Cells complementary to a macrophage M2-polarization.