PMID- 9033844 OWN - NLM STAT- MEDLINE DCOM- 19970319 LR - 20141120 IS - 0764-4469 (Print) IS - 0764-4469 (Linking) VI - 319 IP - 11 DP - 1996 Nov TI - [The role of the transforming growth factor beta 1 (TGF-beta 1) and of vascular endothelial growth factor (VEGF) on the in vitro angiogenesis process]. PG - 1003-10 AB - We have studied the role of 2 exogenous cytokines, the TGF beta 1 and the VEGF, on the in vitro angiogenesis process. Endothelial cells were plated on fibrin matrices either with 2% or with 10% human serum in 199 medium. Forty-eight hours later, with 10% human serum, the capillary-like network index (the percentage of the culture area covered by the capillary network) was about 50%. Under these culture conditions, when TGF-beta 1 or VEGF were added, the capillary-like network index augmented and was nearing 75%. When the index is high, using confocal microscopy, we show that hollow capillaries are formed. Moreover, the addition of VEGF increased the kinetics of the capillary-like network formation. With 2% human serum, 48 h after seeding the capillary-like network index was about 75%. In this case, the addition of TGF-beta 1 decreased the network index, whereas the addition of VEGF increased the kinetics of its formation. These in vitro angiogenesis experiments show that the serological factors underline the 2 antagonist effects of TGF-beta 1, but have no detectable effects on the activator effects on the VEGF. FAU - Vailhe, B AU - Vailhe B AD - Laboratoire de bioenergetique, Universite Joseph-Fourier, Grenoble, France. FAU - Tranqui, L AU - Tranqui L LA - fre PT - English Abstract PT - Journal Article TT - Role du facteur beta 1 de transformation cellulaire (TGF-beta 1) et du facteur de croissance de l'endothelium vasculaire (VEGF) sur le processus d'angiogenese in vitro. PL - France TA - C R Acad Sci III JT - Comptes rendus de l'Academie des sciences. Serie III, Sciences de la vie JID - 8503078 RN - 0 (Endothelial Growth Factors) RN - 0 (Lymphokines) RN - 0 (Transforming Growth Factor beta) RN - 0 (Vascular Endothelial Growth Factor A) RN - 0 (Vascular Endothelial Growth Factors) SB - IM MH - Cell Division/drug effects MH - Endothelial Growth Factors/*chemistry MH - Endothelium, Vascular/cytology MH - Humans MH - In Vitro Techniques MH - Lymphokines/*chemistry MH - Microscopy, Confocal MH - Neovascularization, Physiologic/*drug effects MH - Transforming Growth Factor beta/*chemistry MH - Umbilical Veins/cytology MH - Vascular Endothelial Growth Factor A MH - Vascular Endothelial Growth Factors EDAT- 1996/11/01 00:00 MHDA- 1996/11/01 00:01 CRDT- 1996/11/01 00:00 PHST- 1996/11/01 00:00 [pubmed] PHST- 1996/11/01 00:01 [medline] PHST- 1996/11/01 00:00 [entrez] PST - ppublish SO - C R Acad Sci III. 1996 Nov;319(11):1003-10.