2018
DOI: 10.1016/j.ccell.2018.06.013
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Widespread Chromosomal Losses and Mitochondrial DNA Alterations as Genetic Drivers in Hürthle Cell Carcinoma

Abstract: 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 alteration… Show more

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Cited by 190 publications
(200 citation statements)
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References 86 publications
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“…Mutations in tumor suppressor genes such as TP53, as well as PTEN, were shown to be enriched in HCC with widespread loss of heterozygosity (LOH). 31 The one case in our study with TP53 mutation was also a Hürthle cell carcinoma.…”
Section: Resultsmentioning
confidence: 56%
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“…Mutations in tumor suppressor genes such as TP53, as well as PTEN, were shown to be enriched in HCC with widespread loss of heterozygosity (LOH). 31 The one case in our study with TP53 mutation was also a Hürthle cell carcinoma.…”
Section: Resultsmentioning
confidence: 56%
“…The reported prevalence of TERT mutations is approximately 0% in benign lesions, 12%‐14% in PTC and FTC, and 38%‐46% in poorly differentiated thyroid carcinoma (PDTC) and ATC . TERT promoter mutations are often identified in advanced thyroid cancers, including HCC, and are associated with metastasis and aggressive disease . The two TERT mutated lesions in our study were malignant on surgical follow‐up, both consisting of Hürthle cell carcinomas.…”
Section: Discussionmentioning
confidence: 68%
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“…Somatic genomic alterations in Hürthle cell carcinomas are different from those in PTC and FTC. Hürthle cell carcinomas have MADCAM1, EIF1AX, NRAS, DAXX, PT53 and NF1 mutations , but no BRAF mutations and a lower frequency of NRAS mutation than FTC . Somatic recurrent mitochondrial mutations occur in 71% of Hürthle cell carcinomas.…”
Section: Genetic Profiles and Molecular Diagnosis Of Thyroid Tumorsmentioning
confidence: 99%
“…H€ urthle cell carcinomas have MADCAM1, EIF1AX, NRAS, DAXX, PT53 and NF1 mutations, but no BRAF mutations and a lower frequency of NRAS mutation than FTC. 201,205 Somatic recurrent mitochondrial mutations occur in 71% of H€ urthle cell carcinomas. Unique chromosomal landscapes in H€ urthle cell carcinomas involve wholechromosome duplication of chromosomes 5 and 7, and widespread loss of chromosomes resulting in near-haploid chromosomal content.…”
Section: Genetic Profiles and Molecular Diagnosis Of Thyroid Tumorsmentioning
confidence: 99%