miR-146a has a role in several cancers and can regulate the immune system, such as antiviral activity and inflammatory response.135, 136, 137, 138, 139 The relatively high expression of miR-146a was observed in papillary thyroid carcinoma and could be related to loss of the KIT transcript and Kit protein.136. Here, KIT is linked to thyroid gland papillary carcinoma.