Large extracellular vesicles regulate endothelial angiogenic potential via paracrine and autocrine signaling.

ABSTRACT: Angiogenesis, a process associated with tumor growth and development, is often linked to advanced disease and poor clinical outcomes. Tumor cells establish a proangiogenic microenvironment through the release of paracrine signaling mediators, including extracellular vesicles (EVs). EVs have been shown to facilitate intercellular communication and encompass a diverse range of secreted vesicles, including small EVs, which range in size from ∼60 to 100 nm, and large EVs (L-EVs), which are even more diverse and range from 200 nm to >1 μm in size. Despite advancements in anti-angiogenic cancer therapies, such as bevacizumab, late-stage tumors, including advanced melanomas, exhibit mixed clinical responses. In this study, we elucidate a unique role for melanoma-derived L-EVs in promoting bevaciz

SUBMITTER: Richmond G 

PROVIDER: S-EPMC12907857 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature