alexa Leukotriene C4 and TGF-alpha are stimulators of human melanocyte migration in vitro.


Journal of Pigmentary Disorders

Author(s): Morelli JG, Kincannon J, Yohn JJ, Zekman T, Weston WL,

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Abstract Human vitiligo is a disease of melanocyte destruction that leads to areas of depigmentation in the skin. The major form of treatment for vitiligo is photochemotherapy using psoralens and UVA radiation (PUVA), which induces the slow migration of pigment cells from hair follicles and normal skin into the depigmented areas. Our hypothesis is that immune cytokines and inflammatory mediators released as a result of the photochemotherapy are signals for melanocyte migration. We have developed an in vitro assay that quantitates the movement of individual cultured melanocytes over a 72-h period using time-lapse photography. Using this assay we found that both LTC4 and TGF-alpha were stimulators of melanocyte migration in vitro. The LTC4 effect was greater and lasted for the entire 72-h experimental period, whereas the TGF-alpha effect was significant only during the first 24 h of the experiment.
This article was published in J Invest Dermatol and referenced in Journal of Pigmentary Disorders

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