Joanna Pozniak, Dennis Pedri, Ewout Landeloos, Yannick Van Herck, Asier Antoranz, Lukas Vanwynsberghe, Ada Nowosad, Niccolò Roda, Samira Makhzami, Greet Bervoets, Lucas Ferreira Maciel, Carlos Ariel Pulido-Vicuña, Lotte Pollaris, Ruth Seurinck, Fang Zhao, Karine Flem-Karlsen, William Damsky, Limin Chen, Despoina Karagianni, Sonia Cinque, Sam Kint, Katy Vandereyken, Benjamin Rombaut, Thierry Voet, Frank Vernaillen, Wim Annaert, Diether Lambrechts, Veerle Boecxstaens, Yvan Saeys, Joost van den Oord, Francesca Bosisio, Panagiotis Karras, A Hunter Shain, Marcus Bosenberg, Eleonora Leucci, Annette Paschen, Florian Rambow, Oliver Bechter, Jean-Christophe Marine
To better understand intrinsic resistance to immune checkpoint blockade (ICB), we established a comprehensive view of the cellular architecture of the treatment-naive melanoma ecosystem and studied its evolution under ICB. Using single-cell, spatial multi-omics, we showed that the tumor microenvironment promotes the emergence of a complex melanoma transcriptomic landscape. Melanoma cells harboring a mesenchymal-like (MES) state, a population known to confer resistance to targeted therapy, were significantly enriched in early on-treatment biopsies from non-responders to ICB...
January 4, 2024: Cell