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Lendvai A, Béke G, Hollósi E, Becker M, Völker JM, Schulze Zur Wiesche E, Bácsi A, Bíró T, Mihály J. N,N-Dimethylglycine Sodium Salt Exerts Marked Anti-Inflammatory Effects in Various Dermatitis Models and Activates Human Epidermal Keratinocytes by Increasing Proliferation, Migration, and Growth Factor Release. Int J Mol Sci 2023; 24:11264. [PMID: 37511024 PMCID: PMC10379135 DOI: 10.3390/ijms241411264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
N,N-dimethylglycine (DMG) is a naturally occurring compound being widely used as an oral supplement to improve growth and physical performance. Thus far, its effects on human skin have not been described in the literature. For the first time, we show that N,N-dimethylglycine sodium salt (DMG-Na) promoted the proliferation of cultured human epidermal HaCaT keratinocytes. Even at high doses, DMG-Na did not compromise the cellular viability of these cells. In a scratch wound-closure assay, DMG-Na augmented the rate of wound closure, demonstrating that it promotes keratinocyte migration. Further, DMG-Na treatment of the cells resulted in the upregulation of the synthesis and release of specific growth factors. Intriguingly, DMG-Na also exerted robust anti-inflammatory and antioxidant effects, as assessed in three different models of human keratinocytes, mimicking microbial and allergic contact dermatitis as well as psoriasis and UVB irradiation-induced solar dermatitis. These results identify DMG-Na as a highly promising novel active compound to promote epidermal proliferation, regeneration, and repair, and to exert protective functions. Further preclinical and clinical studies are under investigation to prove the seminal impact of topically applied DMG-Na on relevant conditions of the skin and its appendages.
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Affiliation(s)
- Alexandra Lendvai
- Department of Immunology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Gyula Petrányi Doctoral School of Clinical Immunology and Allergology, University of Debrecen, 4032 Debrecen, Hungary
| | - Gabriella Béke
- Department of Immunology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Erika Hollósi
- Department of Immunology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Maike Becker
- Dr. Kurt Wolff GmbH & Co. KG, 33611 Bielefeld, Germany
| | | | - Erik Schulze Zur Wiesche
- Dr. Kurt Wolff GmbH & Co. KG, 33611 Bielefeld, Germany
- Dr. August Wolff GmbH & Co. KG Arzneimittel, 33611 Bielefeld, Germany
| | - Attila Bácsi
- Department of Immunology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- ELKH-DE Allergology Research Group, 4032 Debrecen, Hungary
| | - Tamás Bíró
- Department of Immunology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Johanna Mihály
- Department of Immunology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
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