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Proc Natl Acad Sci U S A. 2004 Aug 10;101(32):11658-63. Epub 2004 Aug 2.

Dose-dependent response of FGF-2 for lymphangiogenesis.

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  • 1Vascular Biology Program, Department of Surgery, Children's Hospital Boston, Boston, MA 02115, USA.

Abstract

Spatio-temporal studies on the growth of capillary blood vessels and capillary lymphatic vessels in tissue remodeling have suggested that lymphangiogenesis is angiogenesis-dependent. We revisited this concept by using fibroblast growth factor 2 (FGF-2) (80 ng) to stimulate the growth of both vessel types in the mouse cornea. When we lowered the dose of FGF-2 in the cornea 6.4-fold (12.5 ng), the primary response was lymphangiogenic. Further investigation revealed that vascular endothelial growth factor-C and -D are required for this apparent lymphangiogenic property of FGF-2, and when the small amount of accompanying angiogenesis was completely suppressed, lymphangiogenesis remained unaffected. Our findings demonstrate that there is a dose-dependent response of FGF-2 for lymphangiogenesis, and lymphangiogenesis can occur in the absence of a preexisting or developing vascular bed, i.e., in the absence of angiogenesis, in the mouse cornea.

PMID:
15289610
[PubMed - indexed for MEDLINE]
PMCID:
PMC511009
Free PMC Article
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