Alice Santi, Emily J Kay, Lisa J Neilson, Lynn McGarry, Sergio Lilla, Margaret Mullin, Nikki R Paul, Frédéric Fercoq, Grigorios Koulouras, Giovanny Rodriguez Blanco, Dimitris Athineos, Susan Mason, Mark Hughes, Gemma Thomson, Yann Kieffer, Colin Nixon, Karen Blyth, Fatima Mechta-Grigoriou, Leo M Carlin, Sara Zanivan
Intercellular communication between different cell types in solid tumors contributes to tumor growth and metastatic dissemination. The secretome of cancer-associated fibroblasts (CAFs) plays major roles in these processes. Using human mammary CAFs, we showed that CAFs with a myofibroblast phenotype released extracellular vesicles that transferred proteins to endothelial cells (ECs) that affected their interaction with immune cells. Mass spectrometry-based proteomics identified proteins transferred from CAFs to ECs, which included plasma membrane receptors...
March 12, 2024: Science Signaling