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Acta Pol Pharm. 2008 Jan-Feb;65(1):85-91.

Influence of retinoids on skin fibroblasts metabolism in vitro.

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Department of Cosmetology, School of Pharmacy, Medical University of Silesia, Sosnowiec, Poland.


The most dangerous environmental factor for our skin condition is ultraviolet light radiation. Chronic exposition to ultraviolet light can induce epidermal atrophy, keratosis, depigmentation and dysplasia. In the dermis, UV light causes dramatic up-regulation of extracellular matrix-degrading enzymes. Matrix metalloproteinases (MMPs) are engaged in collagen, elastin and other extracellular matrix components degradation. In addition, to increase level of destructive enzymes, UV light has been shown to decrease collagen production. As a consequence of UV impact on skin, it shows signs of aging including loss of tone and elasticity, increased skin fragility, blood vessels weakness and wrinkles. The most dangerous effect of UV on skin is an increased risk of melanoma and other skin cancers. Retinoids are well known antiaging agents. For many years this vitamin has been used for the prevention and treatment of photoaging. Retinoids abolish cellular atypia, increase compacting of the stratum corneum and reduce skin hyperpigmentation caused by sun light. Recent evidence suggests that retinoids also play a role in the prevention of aging, because of its inhibitory effects on metalloproteinases expression. The aim of this study was to examine if all-trans-retinoic acid (ATRA) effects MMP-1, MMP-2, MMP-3 and MMP-14 gene expression in fibroblasts cultured in vitro.

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