CTSS and thyroid gland follicular carcinoma: In the noncancerous region of follicular carcinoma in 4W rats, autophagy regulatory genes including Cdkn2a, Ctss, Cxcr4, Tgfb1, Tnf, and Tp53 were upregulated, whereas Eif2ak3, Mapt, and Pim2, were downregulated.