The expression of HORMAD2 was high in normal thyroid follicular epithelial cell lines of Nthy‐ori 3‐1 cells but decreased markedly in thyroid cancer cells of FTC‐133, SW579 and TPC‐1 cells, especially in TPC‐1cells (Figure 5A,B, P < .01). The gene discussed is HORMAD2; the disease is thyroid gland carcinoma.