The role of labeled cell therapy with and without scaffold in early excision burn wounds in a rat animal model

Document Type: Original Article


1 urn and Wound Healing Research Center, Shiraz University of Medical Science, Shiraz, Iran

2 Nour Danesh Institute of Higher Education, Isfahan, Iran

3 Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran

4 Center of Comparative and Experimental Medicine, Shiraz University of Medical Sciences, Shiraz, Iran



Objective(s): One of the essential problems in burn therapy is performing the permanent replacement of skin in full and deep thickness injuries. Human Wharton’s Jelly mesenchymal stem cells (HWJMSCs) have a unique combination of prenatal and postnatal properties. Decellularized human amniotic membrane (DHAM) can be used as a scaffold for HWJMSCs-therapy. We aimed to evaluate the quantity and quality of healing in the early excision burn wound dressing with 3-dimensional and 2- dimensional cell cultures.
Materials and Methods: Amniotic and umbilical cords were isolated from the mothers who were candidates for cesarean section. HAM was decellularized using the mechanical and enzymatic method. HWJMSCs were isolated and cultured; cell surface markers were examined for authentication of MSCs and labeled using a viral vector containing the cGFP gene. Burns were created using brass bar in 32 adult male Albino rats and randomly divided into four groups (DHAM+HWJMSCs, injection of HWJMSCs, HWJMSCs was spread on the wound, and DHAM alone). Rats were sacrificed on the 7th and 14th days for pathological examination of the wound. Comparisons between the study groups were made by one-way analysis of variance.
Results: Wound healing process in DHAM+HWJMSCs was much more progressed during the first week in comparison to other groups, and exhibited significant differences in re-epithelialization, formation of granulation tissue, and hemorrhage (P<0.05).
Conclusion: The utility of the amniotic scaffold seeded by the human mesenchymal stem cells is recommended for accelerating the healing process.


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