MPP7 has been detected in breast invasive carcinoma (BRCA), breast invasive carcinoma (BLCA), colorectal adenocarcinoma (COAD), glioblastoma multiforme (GBM), HNSC, kidney renal papillar (KIRP), kidney renal clear cell carcinoma (KIRC), lung squamous cell carcinoma (LUSC), rectum adenocarcinoma (READ), and uterine corpus endometrial carcinoma (UCEC), and was significantly lower compared to matched healthy tissues (P < 0.001; Fig. 1A). Here, MPP7 is linked to bladder transitional cell carcinoma.