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Activated macrophages play a significant role in wound healing and infected tissue repair. In this study, we investigate the recruitment of macrophages into the wound, and the effects on the bactericidal/phagocyte activity after exposure to amnion-derived cellular cytokine solution (ACCS). To evaluate the influence of ACCS on the migratory behavior of macrophages, cell migration was assayed quantitatively using a Boyden chamber. Chemotactic migration activity of macrophages through the membrane determined the influence of ACCS. In the presence of ACCS, macrophages demonstrated a statistically significant (P < 0.05) increase in migration as compared with controls. Subsequently, groups of macrophages were exposed to different concentrations of ACCS solution. The killing and phagocytic activity of each group was compared with the control after exposure to Escherichia coli. Macrophage activity following activation by higher concentrations of ACCS demonstrated significantly increased phagocytosis as well as a trend correlation between percentage ACCS concentration and bactericidal activity. These cell types, critical to normal wound healing, may be influenced by ACCS to accelerate migration and enhance bactericidal/phagocytic activity in wounds.
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Uberti et al. (2011) studied this question.
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