Comparison of the effect of local administration of endothelial progenitor cells and VEGF on improving neovascularization in flap prefabrication / 中华整形外科杂志
Chinese Journal of Plastic Surgery
;
(6): 451-455, 2009.
Article
Dans Chinois
| WPRIM
| ID: wpr-328649
ABSTRACT
<p><b>OBJECTIVE</b>To compare the effect of local administration of endothelial progenitor cells (EPCs) and VECF on improving neovascularization and augmenting the survival areas in a rat model of prefabricated flap.</p><p><b>METHODS</b>Prefabricated flaps were created by ligating the right femoral vascular pedicle and implanting it underneath the abdominal flap. The in vitro cultured EPCs (Group I , n=15) and VEGF protein (Group II , n=15) were injected subcutaneously around the implanted pedicle in experimental groups. PBS was injected in control group (Group Ill , n=15). 4 weeks later, the abdominal island flap based solely on the implanted vessels was elevated and sutured back. Then flap viability and numbers of capillary were evaluated on day 7.</p><p><b>RESULTS</b>There was more statistically significant augmentation of flap survival [(87.26 +/- 10.13) % versus (66.13 +/- 9.9)% and (55.59 +/- 13.06)%, P < 0.001], a higher capillary density (38.67 +/- 9.52 versus 25.83 +/- 6.33 and 26.5 +/- 5.61 capillary/mm2 , P < 0.05) in EPCs group than in the other two groups.</p><p><b>CONCLUSIONS</b>EPCs are superior to VEGF in improving neovascularization during flap prefabrication. Local transplantation of bone marrow-derived EPCs may be a useful strategy for augmentation of the survival areas of prefabricated flaps.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Pharmacologie
/
Lambeaux chirurgicaux
/
Endothélium vasculaire
/
Cellules cultivées
/
Rat Wistar
/
Néovascularisation physiologique
/
Biologie cellulaire
/
Transplantation de cellules souches
/
Facteur de croissance endothéliale vasculaire de type A
/
Survie du greffon
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
langue:
Chinois
Texte intégral:
Chinese Journal of Plastic Surgery
Année:
2009
Type:
Article
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