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Updated: Jun 20, 2026

Generation of a Three-dimensional Full Thickness Skin Equivalent and Automated Wounding
Published on: February 26, 2015
Determination via an Integration Strategy of the Potential Dermal ECM Reconstruction Mechanism by Which the WAW
Yingying Lin1, Yunhee Chang2, Yoojae Maeng3
1Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing, People's Republic of China.
Background:
Traditional Chinese medicine (TCM) treats skin conditions and delays aging using specific formulas. TCM links skin health to internal organ functions: kidney qi deficiency accelerates aging, whereas spleen deficiency leads to dry, loose skin from insufficient qi and blood. The renowned spleen-tonifying and kidney-nourishing formula "Wan An Wan" moisturizes the skin, but its antiageing mechanism remains unclear.
Aims:
The aim of this study was to investigate the development strategy and comprehensive methodological framework for incorporating TCM into cosmetics and to assess the mechanism of action and application potential of the WAW formula in mitigating skin aging.
Results:
In vitro experiments revealed that after optimizing the extraction of the active ingredients of the tailored WAW formula, it effectively inhibited NO production and tyrosinase activity and increased filaggrin, AQP, and HAS2 mRNA expression. Moreover, the active ingredients, including morroniside, were also analyzed separately. Mechanistic studies revealed that the tailored WAW formula upregulated the expression of the TGF-β1 gene associated with ECM production and downregulated the expression of the MMP-2/MMP-9 genes associated with ECM degradation, regulating cell behaviors such as migration, adhesion, and proliferation and thereby maintaining the healthy state of the skin.
Conclusions:
In this study, an overall strategy for applying TCM for the development of skin care solutions was established, the potential value of WAW in modern dermatologic applications was revealed, innovative raw materials with comprehensive effects were developed, and new ideas for the fields of cosmetics and dermatology were provided.
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