Genomic architecture and evolution of clear cell renal cell carcinomas defined by multiregion sequencing  

Oleh:

Gerlinger, Marco ; Horswell, Stuart ; Larkin, James ; Rowan, Andrew J.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Nature Genetics vol. 46 no. 03 (Mar. 2014), page 225-233.
Topik: Tumor

Ketersediaan

Perpustakaan FK Nomor Panggil: N12.K Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Clear cell renal carcinomas (ccRCCs) can display intratumor heterogeneity (ITH). We applied multiregion exome sequencing (M-seq) to resolve the genetic architecture and evolutionary histories of ten ccRCCs. Ultra-deep sequencing identified ITH in all cases. We found that 73–75% of identified ccRCC driver aberrations were subclonal, confounding estimates of driver mutation prevalence. ITH increased with the number of biopsies analyzed, without evidence of saturation in most tumors. Chromosome 3p loss and VHL aberrations were the only ubiquitous events. The proportion of C>T transitions at CpG sites increased during tumor progression. M-seq permits the temporal resolution of ccRCC evolution and refines mutational signatures occurring during tumor development.

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