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Basic fibroblast growth factor-mediated lymphangiogenesis of lymphatic endothelial cells isolated from dog thoracic ducts: effects of heparin.
- Source :
-
The Japanese journal of physiology [Jpn J Physiol] 1998 Apr; Vol. 48 (2), pp. 133-41. - Publication Year :
- 1998
-
Abstract
- We have attempted to evaluate whether, similar to the angiogenesis of blood vessels, cultures of lymphatic endothelial cells (LEC) isolated from dog thoracic ducts have an ability to induce lymphangiogenesis in response to basic fibroblast growth factor (bFGF), then to examine the effects of heparin on the bFGF-mediated morphogenesis. The effects of bFGF and/or heparin on the proliferation and migration of the LEC were evaluated by changing the number of the subconfluent cells and by wound migration assay, respectively. The effects of the agents on invasion and tube formation of the LEC into a three-dimensional collagen gel and on collagen gel induced tube formation of the LEC were also investigated by a phase-contrast microscope and an electron microscope. The bFGF (10 ng/ml) caused a significant induction of proliferation and migration of the LEC, the induction of which was augmented dose-dependently by an additional treatment with heparin ranging from 1 to 100 microg/ml. The bFGF produced invasion and tube formation of the LEC into a three-dimensional collagen gel. The bFGF also facilitated to form capillary-like tubes of the LEC between two layers of collagen gels. Heparin (10 microg/ml) accelerated both processes of bFGF-mediated lymphangiogenesis of the LEC. These findings suggest that the cultured LEC isolated from dog thoracic ducts have an ability to form lymphatic capillary-like tubes in response to bFGF and that heparin accelerates dose-dependently the process of the bFGF-mediated neovascularization of lymph vessels.
- Subjects :
- Animals
Cell Division drug effects
Cell Movement drug effects
Cells, Cultured
Dogs
Endothelium cytology
Endothelium drug effects
Endothelium physiology
Female
Lymphatic System cytology
Male
Microscopy, Electron
Fibroblast Growth Factor 2 pharmacology
Heparin pharmacology
Lymphatic System drug effects
Lymphatic System physiology
Thoracic Duct cytology
Subjects
Details
- Language :
- English
- ISSN :
- 0021-521X
- Volume :
- 48
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- The Japanese journal of physiology
- Publication Type :
- Academic Journal
- Accession number :
- 9639548
- Full Text :
- https://doi.org/10.2170/jjphysiol.48.133