INHBA and cancer: By applying immune cell metagenes derived from colorectal cancers34 and pan-cancer immune cell metagenes35 to the transcriptome data of 130 omental HGSOC metastases, we found that INHBA expression positively correlated with metagenes of Tregs but not with metagenes of activated CD4 T cells or activated CD8 T cells (Supplementary Fig. 8c).