International Journal of Molecular Sciences Article The High Mobility Group A1 (HMGA1) Chromatin Architectural Factor Modulates Nuclear Stiffness in Breast Cancer Cells 1, 1, , 2,§ 3 Beatrice Senigagliesi y, Carlotta Penzo y z, Luisa Ulloa Severino , Riccardo Maraspini , 1 3 1 2, Sara Petrosino , Hernan Morales-Navarrete , Enrico Pobega , Elena Ambrosetti k, Pietro Parisse 2, Silvia Pegoraro 1, Guidalberto Manfioletti 1, Loredana Casalis 2,*,¶ and Riccardo Sgarra 1,*,¶ 1 Department of Life Sciences, University of Trieste, 34127 Trieste, Italy;
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[email protected] (R.S.) These authors contributed equally to this work. y Present address: Department of Infectious Diseases, Centre for Integrative Infectious Disease Research z (CIID), Integrative Virology, University Hospital Heidelberg, D-69120 Heidelberg, Germany. § Present address: Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada. Present address: Department of Medical Biochemistry and Biophysics (MBB), Karolinska Institutet, k SE-171 77 Stockholm, Sweden. ¶ Co-last authors. Received: 10 May 2019; Accepted: 30 May 2019; Published: 4 June 2019 Abstract: Plasticity is an essential condition for cancer cells to invade surrounding tissues.