894 Conserved immune inhibitory receptor-signaling in macrophages limits antitumour chemo-immunotherapy oleh Sabine Tejpar, Abhishek D Garg, Louis Boon, Massimiliano Mazzone, Jenny Sprooten, Isaure Vanmeerbeek, Stefan Naulaerts, Raquel Salvador, Jannes Govaerts, Rosa Trotta, Samantha Pretto, Shikang Zhao, Sarah Trusso Cafarello, Joren Verelst, Maarten Jacquemyn, Martyna Pociupany, Susan M Schlenner, Dirk Daelemans