Journal of Radiation Research, Vol. 60, No. 3, 2019, pp. 289–297 doi: 10.1093/jrr/rrz001 Advance Access Publication: 26 February 2019 Ionizing radiation affects the composition of the proteome of extracellular vesicles released by head-and-neck cancer cells in vitro Agata Abramowicz1, Anna Wojakowska1, Lukasz Marczak2, Malgorzata Lysek-Gladysinska3, Mateusz Smolarz1, Michael D. Story4, Joanna Polanska5, Piotr Widlak1 and Monika Pietrowska1,* 1Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska–Curie Institute–Oncology Center, Gliwice Branch, ul. Wybrzeze Armii Krajowej 15, 44-101 Gliwice, Poland 2Institute of Bioorganic Chemistry, Polish Academy of Sciences, ul. Noskowskiego 12/14, 61-704 Poznan, Poland 3The Jan Kochanowski University in Kielce, Institute of Biology, Department of Cell Biology and Electron Microscopy, ul. Swietokrzyska 15, 25-406 Kielce, Poland 4University of Texas Southwestern Medical Center, Department of Radiation Oncology, Division of Molecular Radiation Biology, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA 5Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, ul. Akademicka 16, 44-100 Gliwice, Poland *Corresponding author. Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska–Curie Institute–Oncology Center, Gliwice Branch, ul. Wybrzeze Armii Krajowej 15, 44-101 Gliwice, Poland. Tel: +0048-32-278-9627; Fax: +0048-32-278-9840; Email:
[email protected] (Received 29 August 2018; revised 7 November 2018; editorial decision 8 January 2019) ABSTRACT Exosomes and other extracellular vesicles are key players in cell-to-cell communication, and it has been proposed that they are involved in different aspects of the response to ionizing radiation, including transmitting the radiation-induced bystander effect and mediating radioresistance.