Article (Scientific journals)
Whole-genome doubling drives immune evasion by silencing antigen presentation.
Foidart, Pierre; Li, Zheqi; Cai, Xinran et al.
2026In Cancer Cell
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Keywords :
antigen presentation; breast cancer; epigenetic silencing; immune escape; whole genome doubling
Abstract :
[en] Whole-genome doubling (WGD) is a common yet poorly understood event associated with poor clinical outcomes. Here, we characterize mechanisms by which WGD drives tumor evolution, utilizing mouse mammary tumor models of WGD established through cell fusion. We find that WGD increases transcriptomic and epigenetic heterogeneity and identify the YM155 BIRC5 inhibitor as a compound specifically suppressing WGD+ tumors. WGD triggers immune evasion by escaping CD8+ T cell responses, rendering WGD+ tumors more sensitive to anti-PD-L1. Through single-cell profiling, we discover that WGD+ cancer cells exhibit reduced antigen presentation and response to IFNγ, attributed to the epigenetic silencing of MHCI transcriptional regulators via elevated histone H3 lysine 27 trimethylation. Further investigations reveal decreased KDM6 activity and increased succinate levels in WGD+ tumors. PRC2 inhibition preferentially suppresses WGD+ tumor growth, enhances antigen presentation, and CD8+ T cell infiltration. Our results underscore metabolic and epigenetic alterations as critical drivers of WGD-associated immune escape.
Disciplines :
Oncology
Author, co-author :
Foidart, Pierre  ;  Université de Liège - ULiège > Département des sciences cliniques ; Centre Hospitalier Universitaire de Liège - CHU > > Service d'oncologie médicale ; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Li, Zheqi;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Cai, Xinran;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Seehawer, Marco;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Brown, Daniel D;  Institute for Precision Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
Tawawalla, Amatullah;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
Baldominos, Pilar;  Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
Parvin, Salma;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Nishida, Jun;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Rojas-Jimenez, Ernesto;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Bui, Triet M;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Diciaccio, Benedetto;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Kumar, Rahul;  Women's Cancer Research Center, UPMC Hillman Cancer Center, Magee-Women's Research Institute, Pittsburgh, PA 15260, USA, Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15260, USA
Schlegel, Brent T;  Women's Cancer Research Center, UPMC Hillman Cancer Center, Magee-Women's Research Institute, Pittsburgh, PA 15260, USA, Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15260, USA
Goyette, Marie-Anne;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Scales, TashJae;  Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
Yan, Pengze;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Qiu, Xintao;  Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
Li, Rong;  Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
Jiang, Yijia;  Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
Xie, Yingtian;  Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
Aarabi, Mahmoud;  Departments of Pathology, and Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA, UPMC Cytogenetics Laboratoires, UPMC Magee-Womens Hospital, Pittsburgh, PA 15213, USA
Huang, Xiao-Yun;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
Stevens, Laura E;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Cejas, Paloma;  Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
Mangiante, Lise;  Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
Sotomayor Vivas, Cristina Irene;  Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
Houlahan, Kathleen E;  Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
Curtis, Christina;  Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
Oesterreich, Steffi;  Women's Cancer Research Center, UPMC Hillman Cancer Center, Magee-Women's Research Institute, Pittsburgh, PA 15260, USA, Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15260, USA
Harris, Isaac S;  University of Rochester Medical Center, Rochester, NY 14642, USA
Letai, Anthony G;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
Lee, Adrian V;  Institute for Precision Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA, Women's Cancer Research Center, UPMC Hillman Cancer Center, Magee-Women's Research Institute, Pittsburgh, PA 15260, USA, Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15260, USA
Long, Henry W;  Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
Agudo, Judith;  Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
Polyak, Kornelia ;  Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA, Department of Medicine, Harvard Medical School, Boston, MA 02115, USA. Electronic address: kornelia_polyak@dfci.harvard.edu
More authors (26 more) Less
Language :
English
Title :
Whole-genome doubling drives immune evasion by silencing antigen presentation.
Publication date :
07 May 2026
Journal title :
Cancer Cell
ISSN :
1535-6108
eISSN :
1878-3686
Publisher :
Elsevier BV, United States
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
CIHR - Canadian Institutes of Health Research
BAEF - Belgian American Educational Foundation
WBI - Wallonie-Bruxelles International
NIH. NCI - National Institutes of Health. National Cancer Institute
Available on ORBi :
since 11 May 2026

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