Dataset

Timing the landmark events in the evolution of clear cell renal cell cancer

Dataset ID Technology Samples
EGAD00001003445 HiSeq X Ten 164

Dataset Description

Clear cell renal cancer is characterized by near-universal loss of the short arm of chromosome 3 (3p). This event arises through unknown mechanisms, but critically results in the loss of several tumor suppressor genes. We analyzed whole genomes from 95 biopsies across 33 patients with clear cell renal cancer (ccRCC) recruited into the Renal TRACERx study. We find novel hotspots of point mutations in the 5'-UTR of TERT, targeting a MYC-MAX repressor, that result in telomere lengthening. The most common structural abnormality generates simultaneous 3p loss and 5q gain (36% patients), typically through chromothripsis. Using molecular clocks, we estimate this occurs in childhood or adolescence, generally preceding emergence of the most recent common ancestor by years to decades. Similar genomic changes recent common ancestor by years to decades. Similar genomic changes are seen in inherited kidney cancers. Modeling differences in age-incidence between inherited and sporadic cancers suggests that the number of cells with 3p loss capable of initiating sporadic tumors is no more than a few hundred. Targeting essential genes in deleted regions of chromosome 3p could represent a potential preventative strategy for renal cancer.

Data Use Conditions

GRU RUO PUB US IS

See further information on Data Use Conditions

Label Code Version Modifier
obsolete general research use and clinical care DUO:0000005 2017-10-16
obsolete research use only DUO:0000014 2017-10-16
publication required DUO:0000019 2017-10-16
user specific restriction DUO:0000026 2017-10-16
institution specific restriction DUO:0000028 2017-10-16