Role of fibroblast-derived factors in the pathogenesis of melasma.

Abstract:

BACKGROUND:The hyperactive melanocytes present in melasma skin are confined to the epidermis, but epidermal ablation to treat melasma pigmentation may lead to disease recurrence and aggravation. Melanocyte function is regulated by interactions between melanocytes and neighbouring cells such as keratinocytes and fibroblasts. Because melasma skin usually shows dermal changes after exposure to sunlight, we hypothesized that sun-damaged fibroblasts might play a crucial role in the pathogenesis of melasma. AIM:In this study, the melanogenic role of primary cultured fibroblasts from human melasma skin was investigated. METHODS:We explored whether primary cultured fibroblasts from melasma tissue have a melanogenic function on cultured human epidermal melanocytes and artificial skin. The cytokine profile derived from fibroblasts and their effect on the pigmented epidermal equivalents were investigated. RESULTS:Fibroblasts from the melasma lesion and perilesional skin increased melanogenesis in cultured human epidermal melanocytes and in artificial skin. Fibroblasts from the melasma lesion and perilesional skin secreted more nerve growth factor (NGF)-β than those in normal buttock skin, and also increased melanogenesis and the expression level of NGF-β in cultured human epidermal melanocytes and artificial skin. CONCLUSIONS:These results suggest that fibroblasts may play a role in melanogenesis and the pathogenesis of melasma.

journal_name

Clin Exp Dermatol

authors

Byun JW,Park IS,Choi GS,Shin J

doi

10.1111/ced.12874

subject

Has Abstract

pub_date

2016-08-01 00:00:00

pages

601-9

issue

6

eissn

0307-6938

issn

1365-2230

journal_volume

41

pub_type

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