Abstract:
Differentiated thyroid cancers(DTC) are generally considered low-risk malignant tumors. Radioiodine ablation following thyroidectomy and thyroid hormone suppression therapy are standard treatment in patients with metastatic DTC. Patients with DTC obtain many benefits from a three-step therapy schedule(i.e., thyroidectomy+radioiodine ablation+thyroid hormone). A proportion of patients with locally advanced or metastatic disease and poorly differentiated or dedifferentiated thyroid cancer become refractory to radioactive
131I therapy. After sensitizer and/or redifferentiation inducer treatment, thyroid cancer cells in patients with refractory thyroid cancer increase
131I uptake and the effects of
131I treatment are improved for patients with refractory thyroid cancer. The emergence of targeted drug treatment technology provides a broad prospect for thyroid cancer refractory to
131I therapy. Progress in the areas of sensitizers, redifferentiation inducers, and targeted drug treatment techniques for treating thyroid cancer refractory to
131I therapy is discussed in this review.