Previous results from our group demonstrated that ouabain (10−7 M) increased IL-6 and IL-6R mRNA levels in TPC-1, BCPAP (papillary carcinoma human thyroid cell lines) and NTHY-ori (non-tumoral human thyroid cell line) after 24 h of culture [19]. The gene discussed is IL6R; the disease is thyroid gland papillary carcinoma.