In ovarian cancer, high expression of MRPL15 is closely related to the proliferation of CD8 T cells and dendritic cells, as well as the expression of TGFβR1 and IDO1 (116).Another study on ovarian cancer indicates that the expression of MRPS12 is positively correlated with the infiltration of macrophages and neutrophils (117). Here, IDO1 is linked to ovarian carcinoma.