In contrast, BFSP1 expression was significantly downregulated in other tumor types, such as cervical squamous cell carcinoma, endocervical adenocarcinoma, glioblastoma multiforme, HPV-negative head and neck squamous cell carcinoma, kidney chromophobe, renal clear cell carcinoma, lung adenocarcinoma, thyroid carcinoma, and uterine corpus endometrial carcinoma. Here, BFSP1 is linked to chromophobe renal cell carcinoma.