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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Topical application of complement C3 in collagen formulation increases early wound healing.
Journal of Dermatological Treatment 2013 April
BACKGROUND: The complement system is composed of bactericidal and hemolytic proteins that increase capillary leakage and inflammatory cell migration. The role of complement C3 to augment wound healing has not yet been studied.
METHODS: We examined the effects of topical complement C3 formulation at two concentrations (10 and 100 nM) on the rat surgical skin incision model. Skin was examined for maximal breaking strength and sectioned for histological examination. Fibronectin and collagen I content were measured using western blot analysis.
RESULTS: There was a statistically significant 74% increase in maximum wound strength with the topical application of 100 nM of C3 at day 3 (850 ± 138 g) when compared to the control rats (490 ± 57 g). Histological correlation was seen with an increased inflammatory cell and fibroblast infiltration in treated wounds as compared to control rats as early as 3 days post-wounding. Western blots revealed increased fibronectin and collagen I levels in C3 treated wounds.
CONCLUSIONS: Topical application of complement C3 in collagen formulation to skin wounds significantly increases wound healing as early as 3 days after wounding. This is correlated with increased inflammatory cell recruitment and the subsequent early fibroblast migration and increased collagen deposition and organization in wounds.
METHODS: We examined the effects of topical complement C3 formulation at two concentrations (10 and 100 nM) on the rat surgical skin incision model. Skin was examined for maximal breaking strength and sectioned for histological examination. Fibronectin and collagen I content were measured using western blot analysis.
RESULTS: There was a statistically significant 74% increase in maximum wound strength with the topical application of 100 nM of C3 at day 3 (850 ± 138 g) when compared to the control rats (490 ± 57 g). Histological correlation was seen with an increased inflammatory cell and fibroblast infiltration in treated wounds as compared to control rats as early as 3 days post-wounding. Western blots revealed increased fibronectin and collagen I levels in C3 treated wounds.
CONCLUSIONS: Topical application of complement C3 in collagen formulation to skin wounds significantly increases wound healing as early as 3 days after wounding. This is correlated with increased inflammatory cell recruitment and the subsequent early fibroblast migration and increased collagen deposition and organization in wounds.
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