Two potential biomarkers of follicular thyroid adenomas (FTA) were identified in the PC of AuNPs: the aldo-keto reductase family 1 member C1 (AKR1C1) and the heterogeneous nuclear ribonucleoprotein C-like 2 (HNRNPCL2), both proteins linked to cancer progression and malignant transformation [171,172], which could be possible molecular targets and, at the same time, targeted for maximum therapeutic benefit in the treatment of thyroid cancer. This evidence concerns the gene AKR1C1 and thyroid cancer.