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Whole-Exome Sequencing Studies of Parathyroid Carcinomas Reveal NovelPRUNE2Mutations, Distinctive Mutational Spectra Related to APOBEC-Catalyzed DNA Mutagenesis and Mutational Enrichment in Kinases Associated With Cell Migration and Invasion

Willie Yu, John R McPherson, Mark Stevenson, Ronald van Eijk, Hong Lee Heng, Paul Newey, Anna Gan, Dina Ruano, Dachuan Huang, Song Ling Poon, Choon Kiat Ong, Tom van Wezel (+6 others)
2015 Journal of Clinical Endocrinology and Metabolism  

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https://web.archive.org/web/20190505090808/https://watermark.silverchair.com/jcemE360.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAkAwggI8BgkqhkiG9w0BBwagggItMIICKQIBADCCAiIGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMgOYQbervA9Vi78z1AgEQgIIB83wcKJKuVR-BhkaVwC85brlYQyXvxDGnrEzD6YlZ6igBoGUhOj6rlf0Wv8FlaY6s9jALbuF0WWwPU8zI-2_k_o4Ft1XzhZBma_gogUB9fD2RANZ5R4u2Pn0TNWcaSGV96yKI031kkV4nuDprXyqTFefRjAcP_6hm9ymMjXp3ptSeO_c5ACRoOqWBJusXRRel88NsCkL4ene-MGI6UmIWklXk6Z-KOF-2JJ8dbKtjpjaBwmxOYKT5is_ebXV1KSxasHfseUocu3aBEN-HsOy99VZou9Y-U6n0ASILMNjG_azVkTf9ZhEjucqQn6Yg_A5HjWNAPAIpyDp-0_NMsipLh9wWYAV2JIiDR63UJNl6-cItUS_AXEx85KRFVMNGOk3qYV7BBUTBsOgoutBdmUVXsZQFsmGE8nNByY2nUEk-0zzZujWQs8ZCfCNW-in5L0C9IsEUTb2A7LYKHFMFG6xnbiAS8rwBe2f49gkHZ-LsfOwWWaPKeF4X8M2BEe1S3LHsTvX8heMBPFeWfMfrKTwkGAwXIJD8RSvVC7n6lY1uH80LqkupjdLj-zq6Cpwdt0y8y25HLIzKwVYPV_y2_jxS5j2PXGEF00UiXLD3fQkWDfdaSuZ_P5DBEoVtP3b4I2t2rV5L0EPonblb8VZiHgWs-TwO0UQ

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Context: Cell division cycle 73 (CDC73), encoding the protein parafibromin, is the most prevalent mutated gene in familial and sporadic parathyroid carcinoma (PC). Objective: To identify additional genetic abnormalities in PCs. Design: Whole-exome sequencing was performed using DNA from seven pairs of matched PCs and one triplet containing double primary tumor and normal leukocyte. Somatic variants were confirmed using Sanger sequencing and recurrently mutated genes were assessed in 13
more » ... l PCs as well as 40 parathyroid adenomas (PA). Results: PC had an average of 51 somatic variants/tumor (range 3-176) with approximately 58% of variants occurring as nonsynonymous single nucleotide variants. The importance of CDC73 in PC is reinforced with a remarkable preferential amplification of the mutant CDC73 allele. Furthermore, recurrent germ line and somatic mutations in prune homolog 2 [Drosophila] (PRUNE2) were found in PC and computationally predicted to be deleterious; in addition, recurrent mutations in kinase genes related to cell migration and invasion were found. PRUNE2 showed recurrent mutations in 18% (4/22) of PCs with additional screening in 40 PAs revealing only one rare missense polymorphism (Asp1677Asn). For the first time, the mutational signature associated with apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like (APOBEC)catalyzed cytosine-to-uracil deamination is found in a subset of PC. Conclusion: This study outlines the genetic landscape of PC and attempts to characterize the mutational processes shaping the PC genome. (J Clin Endocrinol Metab 100: E360 -E364, 2015) Abbreviations: FFPE, formalin fixed paraffin embedded; HPT-JT, hyperparathyroidism-jaw tumor syndrome; LOH, loss of heterozygosity; PA, parathyroid adenoma; PC, parathyroid carcinoma; pHPT, primary hyperparathyroidism; RhoA, Ras homolog family member A; SNPs, single nucleotide polymorphisms.
doi:10.1210/jc.2014-3238 pmid:25387265 fatcat:qbgzhfaadbax3od2qqw47mhna4
Citation

Willie Yu, John R McPherson, Mark Stevenson, Ronald van Eijk, Hong Lee Heng, Paul Newey, Anna Gan, Dina Ruano, Dachuan Huang, Song Ling Poon, Choon Kiat Ong, Tom van Wezel, Branca Cavaco, Steven G Rozen, Patrick Tan, Bin T Teh, Rajesh V Thakker, Hans Morreau. "Whole-Exome Sequencing Studies of Parathyroid Carcinomas Reveal NovelPRUNE2Mutations, Distinctive Mutational Spectra Related to APOBEC-Catalyzed DNA Mutagenesis and Mutational Enrichment in Kinases Associated With Cell Migration and Invasion." Journal of Clinical Endocrinology and Metabolism 100.2 (2015) E360-E364