Widespread Chromosomal Losses and Mitochondrial DNA Alterations as Genetic Drivers in Hürthle Cell Carcinoma.
Cancer Cell
; 34(2): 242-255.e5, 2018 08 13.
Article
em En
| MEDLINE
| ID: mdl-30107175
Hürthle cell carcinoma of the thyroid (HCC) is a form of thyroid cancer recalcitrant to radioiodine therapy that exhibits an accumulation of mitochondria. We performed whole-exome sequencing on a cohort of primary, recurrent, and metastatic tumors, and identified recurrent mutations in DAXX, TP53, NRAS, NF1, CDKN1A, ARHGAP35, and the TERT promoter. Parallel analysis of mtDNA revealed recurrent homoplasmic mutations in subunits of complex I of the electron transport chain. Analysis of DNA copy-number alterations uncovered widespread loss of chromosomes culminating in near-haploid chromosomal content in a large fraction of HCC, which was maintained during metastatic spread. This work uncovers a distinct molecular origin of HCC compared with other thyroid malignancies.
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Base de dados:
MEDLINE
Assunto principal:
DNA Mitocondrial
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Neoplasias da Glândula Tireoide
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Aberrações Cromossômicas
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Mutação
Limite:
Humans
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article