As such, it is not surprising that HO-1 is expressed in a variety of cancers including; bladder (8), breast (2), colorectal (9), glioblastoma (10), head and neck (11), leukemia (12), lung (13), melanoma (14), neuroblastoma (15), prostate (16) and renal (17) cancer. Here, HMOX1 is linked to cancer.