Compared to healthy tissue, the expression level of FSTL1 was found to be reduced in biopsies of various types of cancers, such as prostate [16], ovarian, endometrial [19], kidney [20, 21, 57], nasopharyngeal carcinoma (NPC) [22], and lung adenocarcinoma [58]. The gene discussed is FSTL1; the disease is nasopharyngeal carcinoma.