The filtration criteria for the verification targets were set up as (1) most of them are novel indicators without previous reports regarding their chemoresistance in HGSC, (2) as the region representatives of either tumour or stroma in this study, (3) higher abundance changes between CP‐i and CP‐s groups (fold‐change > 2, adjusted p‐value < .05), and (4) clear definition of biochemical functions in UniProt/Swiss‐Prot, such as TFRC38 and PDLIM3.39 Here, PDLIM3 is linked to neoplasm.