Δημοσίευση

Adipose-derived stromal vascular fraction aids epithelialisation and angiogenesis in an animal model.

ΤίτλοςAdipose-derived stromal vascular fraction aids epithelialisation and angiogenesis in an animal model.
Publication TypeJournal Article
Year of Publication2018
AuthorsKaragergou, E., Dionyssopoulos A., Karayannopoulou M., Psalla D., Theodoridis A., Demiri E., & Koliakos G.
JournalJ Wound Care
Volume27
Issue10
Pagination637-644
Date Published2018 10 02
ISSN0969-0700
Λέξεις κλειδιάAdipose Tissue, Animals, Disease Models, Animal, Injections, Intradermal, Male, Rats, Rats, Wistar, Re-Epithelialization, Stromal Cells, Surgical Wound, Wound Healing
Abstract

OBJECTIVE: Limited data exist regarding the correlation between adipose-derived stromal vascular fraction (SVF) and wound healing. The aim of this study was to investigate the direct effect of intradermally injected SVF on full-thickness cutaneous wounds in a murine model.
METHOD: Wistar rats were divided into three groups (A, B and C) according to their day of euthanasia (day 7, 16 and 21). Inguinal fat pad was excised and SVF enzymatically extracted. Full-thickness cutaneous wounds were created on each side of the dorsum; SVF injected intradermally at one side while the contralateral wound served as control receiving normal saline. Postoperatively, evaluation of wound healing was performed by planimetry (percentages of wound contraction, epithelialisation and total wound healing) on days 0, 3, 5, 7, 10, 13, 16 and 21, and histology and immunochemistry (cellular infiltration score, collagen production score, neoangiogenesis and epithelial thickness) on days 7, 16 and 21.
RESULTS: Despite the high rate of wound contraction, it was significantly lower in the SVF-treated wounds on day 21 (p=0.037). On days 13, 16 and 21, the percentages of epithelialisation were higher in the SVF-treated wounds compared with control wounds (p=0.026, p=0.048 and p=0.05, respectively). Histologically, the number of new vessels was significantly higher in the SVF-treated wounds compared with controls on days seven (p=0.028) and 16 (p=0.027). This was also confirmed by immunohistochemistry. No significant differences were found between treated and control wounds regarding cellular infiltration score, collagen production score and epithelial thickness.
CONCLUSION: Data indicate that intradermally injected SVF increases angiogenesis and enhances epithelialisation in full-thickness cutaneous wounds in rats.

DOI10.12968/jowc.2018.27.10.637
Alternate JournalJ Wound Care
PubMed ID30332355

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