Our results revealed that DDR1 was negatively correlated with immune scores and stromal scores in 14 cancers (BLCA, BRCA, GBM, HNSC, KIRC, KIRP, LUAD, LUSC, PAAD, SARC, SKCM, STAD, THCA, and UCEC). Here, DDR1 is linked to bladder transitional cell carcinoma.