Changes in the concentrations of extracellular Mg++ and Ca++ down-regulate E-cadherin and up-regulate alpha 2 beta 1 integrin function, activating keratinocyte migration on type I collagen.

Abstract excerpt

We have demonstrated recently that shifts in the concentrations of extracellular Mg++ and Ca++ occur during cutaneous injury in vivo. These shifts correlate well with the timing of migration of various cell types involved in wound healing, including keratinocytes. In the present study, we examined the potential of such cation shifts to activate the keratinocyte migratory phenotype. In modified Boyden chamber...

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