Abstract
Objective: To identify the role of exosomes in Chronic Myeloid Leukemia (CML), highlighting their origin, impact on disease progression, drug resistance, and therapeutic potential. Methods: Integrative review of articles published between 2013 and 2025, in Portuguese, English, and Spanish, with full-text availability. The guiding question was: "How have exosomes influenced the progression of Chronic Myeloid Leukemia and the treatment of this disease?" The search was conducted in PubMed/MEDLINE, Scopus, Web of Science, and SciELO databases, using the descriptors Exosomes, Chronic Myeloid Leukemia OR CML, and Tyrosine Kinase Inhibitor Resistance (TKIs), combined with "AND". Results: Studies indicate that exosomes modulate the tumor microenvironment in CML, promoting cell proliferation, therapeutic resistance, and hematopoietic niche remodeling. Additionally, they interfere with the immune response by modulating T-cell activation and favoring M2 macrophage expansion, contributing to tumor immune evasion. Emerging therapeutic strategies suggest inhibiting exosome biogenesis or manipulating their content as promising approaches to controlling disease progression. Final considerations: Exosomes play a central role in CML progression and therapeutic resistance, making them promising targets for new therapies. Further studies are needed to characterize their molecular content and evaluate therapeutic interventions based on their modulation.
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