Moreover, ANXA1 shows contrasting expression profiles in various cancer types: over-expressed in lung cancer, colorectal cancer, and pancreatic cancer, and so on, by the contrary, lack of expression in cervical cancer, prostate cancer, nasopharyngeal carcinoma, etc. [34, 36] We found a high level of ANXA1 in serum of ESCC patients, which is consistent with the finding of a previous study showing upregulated levels of ANXA1 in ESCC tissues versus matching normal tissues [30]. Here, ANXA1 is linked to prostate cancer.