Abstract
In a previous study, 7-week treatment of normal human skin with two test moisturizers, Complex cream and Hydrocarbon cream, was shown to affect mRNA expression of certain genes involved in keratinocyte differentiation. Moreover, the treatment altered transepidermal water loss (TEWL) in opposite directions. In the present study, the mRNA expression of genes important for formation of barrier lipids, i.e., cholesterol, free fatty acids and ceramides, was examined. Treatment with Hydrocarbon cream, which increased TEWL, also elevated the gene expression of GBA, SPTLC2, SMPD1, ALOX12B, ALOXE3, and HMGCS1. In addition, the expression of PPARG was decreased. On the other hand, Complex cream, which decreased TEWL, induced only the expression of PPARG, although not confirmed at the protein level. Furthermore, in the untreated skin, a correlation between the mRNA expression of PPARG and ACACB, and TEWL was found, suggesting that these genes are important for the skin barrier homeostasis. The observed changes further demonstrate that long-term treatment with certain moisturizers may induce dysfunctional skin barrier, and as a consequence several signaling pathways are altered.
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Abbreviations
- TEWL:
-
Transepidermal water loss
- SLS:
-
Sodium lauryl sulfate
- mRNA:
-
Messenger RNA
- QRT-PCR:
-
Quantitative real-time polymerase chain reaction
- RT:
-
Reverse transcription
- PBS:
-
Phosphate-buffered saline
- GBA:
-
Glucocerebrosidase, beta, acid
- SPTLC2:
-
Serine palmitoyltransferase long chain base subunit 2 (serine palmitoyl transferase-2)
- SMPD1:
-
Sphingomyelin phosphodiesterase 1, acid lysosomal (acid sphingomyelinase)
- UGCG:
-
UDP-glucose ceramide glucosyltransferase
- PPARA:
-
Peroxisome proliferator-activated receptor alpha
- PPARB:
-
Peroxisome proliferator-activated receptor beta
- PPARG:
-
Peroxisome proliferator-activated receptor gamma
- RXRA:
-
Retinoid X receptor alpha
- ALOX12B:
-
Arachidonate 12-lipoxygenase, 12R type (12R-LOX)
- ALOXE3:
-
Arachidonate lipoxygenase 3 (eLOX-3)
- ACACB:
-
Acetyl coenzyme A carboxylase beta
- ACSL1:
-
Acyl-CoA synthetase long-chain family member 1 (LACS)
- FASN:
-
Fatty acid synthase
- HMGCS1:
-
3-Hydroxy-3-methylglutaryl-coenzyme A synthase 1
- HMGCR:
-
3-Hydroxy-3-methylglutaryl-coenzyme A reductase
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Acknowledgments
This study was financially supported by ACO HUD NORDIC AB, Stockholm and Uppsala University, Uppsala, Sweden and the Welander and Finsen Foundation. We would like to thank Inger Pihl-Lundin, Uppsala University, for technical assistance.
Conflict of interest statement
Izabela Buraczewska and Marie Lodén are employed by ACO HUD NORDIC AB, which sponsored the study.
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Buraczewska, I., Berne, B., Lindberg, M. et al. Moisturizers change the mRNA expression of enzymes synthesizing skin barrier lipids. Arch Dermatol Res 301, 587–594 (2009). https://doi.org/10.1007/s00403-009-0958-2
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DOI: https://doi.org/10.1007/s00403-009-0958-2