Abstract
Adverse environmental conditions such as UV radiation induce oxidative and aging events leading to severe damage to human skin cells. Natural products such as plant extracts have been implicated in the skin anti-oxidant and anti-aging cellular protection against environmental stress. Moreover, environmental factors have been shown to impact chromatin structure leading to altered gene expression programs with profound changes in cellular functions. In this study, we assessed the in vitro effect of a leaf extract from Vitis vinifera L. on UV-stressed primary human dermal fibroblasts, focusing on gene expression and DNA methylation as an epigenetic factor. Expression analysis of two genes known to be implicated in skin anti-aging, SIRT1and HSP4, demonstrated significant induction in the presence of the extract under normal or UVA conditions. In addition, DNA methylation profiling of SIRT1 and HSP47 promoters showed that the V. vinifera L. extract induced changes in the DNA methylation pattern of both genes that may be associated with SIRT1 and HSP47 gene expression. Our study shows for the first time transcriptional and DNA methylation alterations on human skin fibroblasts exposed to UV stress and suggest a protective effect of a V. vinifera extract possibly through transcriptional regulation of critical skin anti-aging genes.
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15 June 2023
A Correction to this paper has been published: https://doi.org/10.1007/s11033-023-08526-x
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SL conceived, planned and oversaw the experiments. SL carried out the experiments on the RT-qPCR analysis, AK carried out experiments on epigenetics analysis. SL and AK analyzed and integrated the datasets and drafted the manuscript. AT critically read and contributed to improve the MS. K.G. made extract preparations K.G. critically read and contributed to improve the MS. E.S. made extract preparations and optimization and collected the plant material.
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The original online version of this article was revised: The authors "Eleni Spanidi" and "Konstantinos Gardikis" are included as 4th and 5th authors. The sections "Materials and methods, Discussions, Author contributions and funding" are updated.
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Letsiou, S., Kapazoglou, A., Tsaftaris, A. et al. Transcriptional and epigenetic effects of Vitis vinifera L. leaf extract on UV-stressed human dermal fibroblasts. Mol Biol Rep 47, 5763–5772 (2020). https://doi.org/10.1007/s11033-020-05645-7
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DOI: https://doi.org/10.1007/s11033-020-05645-7