Diabetes & Metabolism Journal

Minjeong Kwon (Kwon M)

1 Article

Comparison of EGF with VEGF Non-Viral Gene Therapy for Cutaneous Wound Healing of Streptozotocin Diabetic Mice: Junghae Ko, Haejung Jun, Hyesook Chung, Changshin Yoon, Taekyoon Kim, Minjeong Kwon, Soonhee Lee, Soojin Jung, Mikyung Kim, Jeong Hyun Park; Diabetes Metab J. 2011;35(3):226-235. Published online June 30, 2011; DOI: https://doi.org/10.4093/dmj.2011.35.3.226

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Background

To accelerate the healing of diabetic wounds, various kinds of growth factors have been employed. It is the short half-life of administered growth factors in hostile wound beds that have limited wide-spread clinical usage. To overcome this limitation, growth factor gene therapy could be an attractive alternative rather than direct application of factors onto the wound beds. We administered two growth factor DNAs, epidermal growth factor (EGF) and vascular endothelial growth factor (VEGF) into a cutaneous wound on diabetic mice. We compared the different characteristics of the healing wounds.

Methods

Streptozotocin was injected intraperitoneally to induce diabetes into C57BL/6J mice. The ultrasound micro-bubble destruction method with SonoVue as a bubbling agent was used for non-viral gene delivery of EGF⁸²⁸ and VEGF¹⁶⁵ DNAs. Each gene was modified for increasing efficacy as FRM-EGF⁸²⁸ or minicircle VEGF¹⁶⁵. The degree of neoangiogenesis was assessed using qualitative laser Doppler flowmetry. We compared wound size and histological findings of the skin wounds in each group.

Results

In both groups, accelerated wound closure was observed in the mice receiving gene therapy compared with non treated diabetic control mice. Blood flow detected by laser doppler flowmetry was better in the VEGF group than in the EGF group. Wound healing rates and histological findings were more accelerated in the EGF gene therapy group than the VEGF group, but were not statistically significant.

Conclusion

Both non-viral EGF and VEGF gene therapy administrations could improve the speed and quality of skin wound healing. However, the detailed histological characteristics of the healing wounds were different.

Citations

Citations to this article as recorded by

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