RESEARCH ARTICLE ATR expands embryonic stem cell fate potential in response to replication stress Sina Atashpaz1†*, Sara Samadi Shams1†, Javier Martin Gonzalez2, Endre Sebestye´ n1‡, Negar Arghavanifard1,3, Andrea Gnocchi1,3, Eliene Albers4, Simone Minardi1,5, Giovanni Faga6, Paolo Soffientini1, Elisa Allievi5, Valeria Cancila7, Angela Bachi1,O´ scar Ferna´ ndez-Capetillo8,9, Claudio Tripodo7, Francesco Ferrari1, Andre´ s Joaquin Lo´ pez-Contreras4, Vincenzo Costanzo1,3* 1IFOM-The FIRC Institute of Molecular Oncology, Milan, Italy; 2Transgenic Core Facility, University of Copenhagen, Copenhagen, Denmark; 3Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy; 4Center for Chromosome Stability and Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark; 5Cogentech, IFOM-The FIRC Institute of Molecular Oncology Milan, Milan, Italy; 6Experimental Therapeutics Program, IFOM-The FIRC Institute of Molecular Oncology, Milan, Italy; 7Tumor Immunology Unit, Department of Health Sciences, Human Pathology Section, University of Palermo School of Medicine Palermo, Palermo, Italy; 8Spanish National Cancer Research Center, Madrid, Spain; 9Science for Life Laboratory, Division of Genome Biology, Department of Medical *For correspondence: Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
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[email protected] (VC) †These authors contributed equally to this work Abstract Unrepaired DNA damage during embryonic development