A novel RET rearrangement (ACBD5/RET) by pericentric inversion, inv(10)(p12.1;q11.2), in papillary thyroid cancer from an atomic bomb survivor exposed to high-dose radiation..     ///    These findings suggest that the ACBD5-RET rearrangement is causatively involved in the development of PTC.     ///    Stable NIH3T3 transfectants with ACBD5-RET cDNA induced tumor formation after their injection into nude mice.     ///    Full-length cDNA of the ACBD5-RET gene was constructed and then examined for tumorigenicity.     ///    "Enhanced phosphorylation of ERK proteins in the MAPK pathway was observed in NIH3T3 cells transfected with expression vector encoding the full-length ACBD5/RET cDNA, while this was not observed in the cells transfected with empty expression vector. "