Aggressive PDACs Show Hypomethylation of Repetitive Elements and the Execution of an Intrinsic IFN Program Linked to a Ductal Cell of Origin

侵袭性 PDAC 显示重复元素的低甲基化和与导管细胞起源相关的内在 IFN 程序的执行

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作者:Elisa Espinet, Zuguang Gu #, Charles D Imbusch #, Nathalia A Giese, Magdalena Büscher, Mariam Safavi, Silke Weisenburger, Corinna Klein, Vanessa Vogel, Mattia Falcone, Jacob Insua-Rodríguez, Manuel Reitberger, Vera Thiel, Steffi O Kossi, Alexander Muckenhuber, Karnjit Sarai, Alex Y L Lee, Elyne Back

Significance

The mutational landscapes of PDAC alone cannot explain the observed interpatient heterogeneity. We identified two PDAC subtypes characterized by differential DNA methylation, preserving traits from normal ductal/acinar cells associated with IFN signaling. Our work suggests that epigenetic traits and the cell of origin contribute to PDAC heterogeneity.This article is highlighted in the In This Issue feature, p. 521.

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