Extremely low frequency electromagnetic field enhances human keratinocyte cell growth and decreases proinflammatory chemokine production

The British Journal of Dermatology
G VianaleR Muraro


Proliferation and differentiation of keratinocytes are central processes in tissue regeneration after injury. Chemokines, produced by a wide range of cell types including keratinocytes, play a regulatory role in inflammatory skin diseases. Several studies have shown that an electromagnetic field (EMF) can influence both inflammatory processes and repair mechanisms including wound healing on different tissue models. To elucidate the effect of extremely low frequency EMF (ELF-EMF) on keratinocyte proliferation and production of chemokines [RANTES, monocyte chemoattractant protein (MCP)-1, macrophage inflammatory protein (MIP)-1 alpha and interleukin (IL)-8] in order to evaluate a potential therapeutic use of magnetic fields. The human keratinocyte cell line HaCaT was exposed at 1 mT, 50 Hz for different lengths of time and compared with unexposed control cells. Cell growth and viability were evaluated at different exposure times by cell count and trypan blue exclusion. Chemokine production and expression were analysed by enzyme-linked immunosorbent assay (ELISA) and by real-time polymerase chain reaction. Total NF-kappaB p65 was quantified by ELISA. Significantly increased growth rates were observed after 48 h of EMF exposure as ...Continue Reading


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