Related Experiment Video
Updated: Jul 14, 2026
Development of an Economical DNA Delivery System by "Acufection" and its Application to Skin Research
Published on: April 19, 2017
Transcriptional effect of an Aframomum angustifolium seed extract on human cutaneous cells using low-density DNA
Mathilde Bonnet-Duquennoy1, Marc Dumas, Adeline Debacker
1LVMH Recherche, Saint Jean-de-Braye, France.
Background:
Studying photoexposed and photoprotected skin biopsies from young and aged women, it has been found that a specific zone, composed of the basal layers of the epidermis, the dermal epidermal junction, and the superficial dermis, is major target of aging and reactive oxygen species. We showed that this zone is characterized by significant variations at a transcriptional and/or protein levels.
Aims:
Using low-density DNA chip technology, we evaluated the effect of a natural mixture of Aframomum angustifolium seed extract containing labdane diterpenoids on these aging markers.
Methods:
Expression profiles of normal human fibroblasts (NHF) were studied using a customized cDNA macroarray system containing genes covering dermal structure, inflammatory responses, and oxidative stress defense mechanisms. For normal human keratinocyte (NHK) investigations, we chose OLISA technique, a sensitive and quantitative method developed by BioMérieux specifically designed to investigate cell death, proliferation, epidermal structure, differentiation, and oxidative stress defense response.
Results:
We observed that this extract strongly modified gene expression profiles of treated NHK, but weakly for NHF. This extract regulated antioxidant defenses, dermal-epidermal junction components, and epidermal renewal-related genes.
Conclusion:
Using low-density DNA chip technology, we identified new potential actions of A. angustifolium seed extract on skin aging.
