Genome-wide genetic and epigenetic analyses of pancreatic acinar cell carcinomas reveal aberrations in genome stability

Cornelia Jäkel, Frank Bergmann, Reka Toth, Yassen Assenov, Daniel Van Der Duin, Oliver Strobel, Thomas Hank, Günter Klöppel, Craig Dorrell, Markus Grompe, Joshua Moss, Yuval Dor, Peter Schirmacher, Christoph Plass, Odilia Popanda, Peter Schmezer*

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

42 Citations (Scopus)

Abstract

Pancreatic acinar cell carcinoma (ACC) is an aggressive exocrine tumor with largely unknown biology. Here, to identify potential targets for personalized treatment, we perform integrative genome-wide and epigenome-wide analyses. The results show frequently aberrant DNA methylation, abundant chromosomal amplifications and deletions, and mutational signatures suggesting defective DNA repair. In contrast to pancreatic ductal adenocarcinoma, no recurrent point mutations are detected. The tumor suppressors ID3, ARID1A, APC, and CDKN2A are frequently impaired also on the protein level and thus potentially affect ACC tumorigenesis. Consequently, this work identifies promising therapeutic targets in ACC for drugs recently approved for precision cancer therapy.

Original languageEnglish
Article number1323
JournalNature Communications
Volume8
Issue number1
DOIs
Publication statusPublished - 1 Dec 2017
Externally publishedYes

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