It has been reported that miR-620 is capable of inhibiting hepatocellular growth and tumorigenesis by blocking the elevation of alpha-fetoprotein [25] and participating in the biological process of colorectal cancer [26], as well as promoting tumor radio resistance through 15-hydroxyprostaglandin dehydrogenase (HPGD) [27]. Here, HPGD is linked to neoplasm.