CMTM4 and cancer: Analyses of the Clinical Proteomic Technology Assessment for Cancer cohort and Gene Expression Omnibus (GEO) series further revealed that CMTM4 expression is elevated in human OC tissues (Figure S1C‐D, Supporting Information).[14] Moreover, the Cancer Cell Line Encyclopedia (CCLE) project confirmed that epithelial OC cells exhibit higher CMTM4 expression than normal immortalized cell lines (Figure S1E, Supporting Information).[15] We assessed CMTM4 expression in human OC and normal tissues obtained from the Shanghai First Maternity and Infant Health Hospital.