TGFB1 and neoplasm: Migrasomes, emerging vesicular structures, play a critical role in mediating tumor–stroma cross-talk through selective cargo transfer, such as oncogenic miRNAs (e.g., miR-21, miR-155) [40] and inflammatory cytokines (e.g., TGF-β, IL-8) [41], which promote immune evasion, angiogenesis, and metastatic niche formation in various cancers.