 RET/PTC1 is a rearranged form of the RET tyrosine kinase commonly seen in papillary thyroid carcinomas.     ///    "Finally, the ability of 17-AAG to increase radioiodide accumulation is not restricted to thyroid cells expressing RET/PTC1. "    ///    "Inhibition of heat shock protein 90, a novel RET/PTC1-associated protein, increases radioiodide accumulation in thyroid cells.. "    ///    Inhibition of hsp90 function with 17-allylamino-17-demothoxygeldanamycin (17-AAG) reduces RET/PTC1 protein levels.     ///    "It has been shown that RET/PTC1 decreases expression of the sodium/iodide symporter (NIS), the molecule that mediates radioiodide therapy for thyroid cancer. "    ///    "Using proteomic analysis, we identify hsp90 and its co-chaperone p50cdc37 as novel proteins associated with RET/PTC1. "