Abstract
Cancer initiation and progression are profoundly along with the crosstalk between cancer cells and the surrounding stroma. Accumulating evidence has shown that the therapy targeting the extracellular matrix (ECM) would regress tumor growth and invasion in the most common carcinomas. However, it remains largely unexplored in several rare tumors like odontogenic tumors. Ameloblastoma (AM) is the representative odontogenic epithelial tumor in the jawbone, and it usually infiltrates into adjacent bone marrow and has unlimited growth capacity and a high potential for recurrence. This study aims to investigate the role of collagen-rich ECM during the invasion of AM. Transcriptomic analysis revealed that ECM- and epithelial-to-mesenchymal transition (EMT)-related genes were up-regulated in AM compared to ameloblastoma cell line, AM-1. Tumoroid forming analysis showed that Collagen-rich ECM is indispensable for AM progression, especially for aggressive growth patterns and collective invasion.
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