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- W4385954732 abstract "Abstract Vascular mimicry has been thoroughly investigated in tumor angiogenesis. In this study, we demonstrate for the first time that a process closely resembling tumor vascular mimicry is present during physiological blood vessel formation in tissue regeneration using the zebrafish fin regeneration assay. At the fin-regenerating front, vasculature is formed by mosaic blood vessels with endothelial-like cells possessing the morphological phenotype of a macrophage and co-expressing both endothelial and macrophage markers within single cells. Our data demonstrate that the vascular segments of the regenerating tissue expand, in part, through the transformation of adjacent macrophages into endothelial-like cells, forming functional, perfused channels and contributing to the de novo formation of microvasculature. Inhibiting the formation of tubular vascular-like structures by CVM-1118 prevents vascular mimicry and network formation resulting in a 70% shorter regeneration area with 60% reduced vessel growth and a complete absence of any signs of regeneration in half of the fin area. Additionally the amount of macrophages is significantly reduced by about 60%. Furthermore, depleting macrophages using macrophage inhibitor PLX-3397, results in impaired tissue regeneration and blood vessel formation, namely a reduction in the regeneration area and vessel network by 75% in comparison to controls." @default.
- W4385954732 created "2023-08-18" @default.
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- W4385954732 date "2023-08-17" @default.
- W4385954732 modified "2023-10-05" @default.
- W4385954732 title "Tissue macrophages contribute to the zebrafish neoangiogenesis by vascular mimicry" @default.
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- W4385954732 doi "https://doi.org/10.21203/rs.3.rs-3199549/v1" @default.
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