Additionally, recent studies have demonstrated that the combined expression of WNT7A and Frizzled 9 (Fzd9) in Non-small cell lung cancer (NSCLC) cell lines inhibits transformed growth by activating ERK5 and increasing PPARgamma activity, representing a novel tumor suppressor pathway in lung cancer [36,42,43]. Here, WNT7A is linked to non-small cell lung carcinoma.