ResearchIn-Press PreviewOncology Open Access | 10.1172/jci.insight.173746
1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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1Department of Physiology and Pharmacology, University of Western Ontario, London, Canada
2Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwaukee, United States of America
3Department of Pathology and Laboratory Medicine, University of Western Ontario, London, Canada
4Department of Paediatrics, University of Western Ontario, London, Canada
5Verspeeten Family Cancer Centre, London, Canada
6Linda T. and John A. Mellowes Center for Genomic Sciences and Precision Med, Medical College of Wisconsin, Milwawkee, United States of America
7Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Marseille, France
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Published December 31, 2024 - More info
Enhancer of Zeste Homologue 2 (EZH2) is part of the Polycomb Repressor Complex 2, which promotes trimethylation of lysine 27 on histone 3 (H3K27me3) and genes repression. EZH2 is overexpressed in many cancers and studies in mice attributed both pro-oncogenic and tumor suppressive functions to EZH2 in pancreatic ductal adenocarcinoma (PDAC). EZH2 deletion enhances de novo KRAS-driven neoplasia following pancreatic injury, while increased EZH2 expression in PDAC patients is correlated to poor prognosis, suggesting a context-dependant effect for EZH2 in PDAC progression. In this study, we examined EZH2 in pre- and early neoplastic stages of PDAC. Using an inducible model to delete the SET domain of EZH2 in adult acinar cells (EZH2∆SET), we showed loss of EZH2 activity did not prevent acinar cell regeneration in the absence of oncogenic KRAS (KRASG12D), nor increase PanIN formation following KRASG12D activation in adult mice. Loss of EZH2 did reduce recruitment of inflammatory cells and, when combined with a more aggressive PDAC model, promoted widespread PDAC progression and remodeling of the tumor microenvironment. This study suggests expression of EZH2 in adult acinar cells restricts PDAC initiation and progression by affecting both the tumour microenvironment and acinar cell differentiation.