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Figure 1. Dual role of exosomes in cancer progression. Cancer cell-derived exosomes contribute to the formation of the pre-metastatic microenvironment, tumor growth and progression, immune escape, angiogenesis, anti-apoptotic signaling, drug-resistance, and so on. While exosomes from healthy cells including dendritic cells, B cells, and T cells, play crucial role in inhibiting tumor growth (This figure was created with BioRender.com)