Mesothelial versus endothelial cell seeding: evaluation of cell adherence to a fibroblastic matrix using 111In oxine.
OBJECTIVE
The aim of this study was to compare the behaviour of mesothelial cells (MC) to that of endothelial cells (EC) when seeded onto a PTFE, prosthesis coated with a fibroblastic matrix.


METHODS
Three study groups were examined: a control group (Control) of PTFE prostheses with a fibroblast matrix (n = 8); Group EC, PTFE prostheses seeded with EC on a fibroblastic matrix (n = 8); and Group MC, PTFE, prostheses seeded with MC on a fibroblastic matrix (n = 8). All cell types were labelled with 111In (100 microCi/ml) 24 h after seeding, when the cells had formed a monolayer on the prosthetic surface. Radioactive levels were measured at 2, 4, 6, and 24 h.


RESULTS
Both EC and MC showed optimal adherence. The MC had a better radioactive uptake and retention than the EC. The number of EC and MC cells that remained adherent to the matrix was large enough to ensure complete covering of the prosthetic surface.


CONCLUSIONS
The use of MC is therefore feasible as an optimal alternative for achieving a natural covering on vascular prostheses prepared with a fibroblastic matrix.
Bellón
J M
JM
Department of Morphological Sciences and Surgery, University of Alcala de Henares, Madrid, Spain.
García-Honduvilla
N
N
Escudero
C
C
Gimeno
M J
MJ
Contreras
L
L
de Haro
J
J
Buján
J
J
D001807:Blood Vessel Prosthesis; D002448:Cell Adhesion; D002455:Cell Division; D002478:Cells, Cultured; D004730:Endothelium, Vascular / Q000166:cytology*; D004847:Epithelial Cells; D005347:Fibroblasts / Q000166:cytology*; D006801:Humans; D007205:Indium Radioisotopes; D009852:Omentum; D009942:Organometallic Compounds; D015125:Oxyquinoline / Q000031:analogs & derivatives; D011138:Polytetrafluoroethylene; D014471:Umbilical Veins / Q000166:cytology
D007205:Indium Radioisotopes; D009942:Organometallic Compounds; C032950:indium oxine; D015125:Oxyquinoline; D011138:Polytetrafluoroethylene