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1.  VEGF-C induced angiogenesis preferentially occurs at a distance from lymphangiogenesis 
Cardiovascular research  2007;78(2):315-323.
Aims
Vascular endothelial growth factor-C (VEGF-C) has been shown to stimulate both angiogenesis and lymphangiogenesis in some but not all models where VEGF-C is over-expressed. Our aim was to investigate the interaction between lymphangiogenesis and angiogenesis in adult tissues regulated by VEGF-C and identify evidence of polarized growth of lymphatics driven by specialized cells at the tip of the growing sprout.
Methods and results
We used an adult model of lymphangiogenesis in the rat mesentery. The angiogenic effect of VEGF-C was markedly attenuated in the presence of a growing lymphatic network. Furthermore, we show that this growth of lymphatic vessels can occur both by recruitment of isolated lymphatic islands to a connected network and by filopodial sprouting. The latter is independent of polarized tip cell differentiation that can be generated all along lymphatic capillaries, independently of the proliferation status of the lymphatic endothelial cells.
Conclusion
These results both demonstrate a dependence of VEGF-C-mediated angiogenesis on lymphatic vascular networks and indicate that the mechanism of VEGF-C-mediated lymphangiogenesis is different from that of classical angiogenic mechanisms.
doi:10.1093/cvr/cvm094
PMCID: PMC2613351  PMID: 18065770
Angiogenesis; Lymphangiogenesis; VEGF-C; Sprouting

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