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Hyalurosome gene regulation and dose-dependent restoration of skin atrophy by retinaldehyde and defined-size hyaluronate fragments in dermatoporosis.
- Source :
-
Dermatology (Basel, Switzerland) [Dermatology] 2014; Vol. 229 (2), pp. 110-5. Date of Electronic Publication: 2014 Aug 14. - Publication Year :
- 2014
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Abstract
- Background: Dermatoporosis is an emerging clinical condition caused by chronological skin aging, long-term sun exposure and chronic use of corticosteroids; however, genomic expression in dermatoporosis and the efficacy of different therapeutic approaches to prevent and treat dermatoporosis have not been investigated so far.<br />Objective: We examined the possible effect of topical retinaldehyde (RAL) and defined-size hyaluronate fragments (HAFi) on the expression of hyalurosome genes potentially involved in the pathogenesis of dermatoporosis. We also explored the effect of different concentrations of HAFi on skin thickness.<br />Methods: 13 persons were separated into a young control group (n = 8) and a dermatoporosis group (n = 5). Topical treatment of both groups with a combination of 0.05% RAL and 1 or 0.2% HAFi was applied on the forearm twice daily for 30 days. Forearm skin biopsies of both groups were performed before and after application. Hyalurosome genes CD44, heparin-binding epidermal growth factor (HB-EGF), ErbB1, hyaluronate synthase 3 (HAS3) and Hyal2 were chosen as potential markers of dermatoporosis. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed for quantification of mRNA expression of the target hyalurosome genes. Measurement of forearm skin thickness before and after treatment was performed by ultrasonography. Analysis of the results was done by Student's t test. A p value <0.05 was considered statistically significant.<br />Results: In qRT-PCR analysis the relative expression of hyalurosome (CD44, HAS3, HB-EGF) genes was found to be reduced in patients prior to topical treatment and to be notably increased following treatment. The reduced expression of CD44 and HAS3 in patients was specifically restored in dermatoporotic patients after treatment. No difference in skin thickness was observed in controls after treatment. The treatment caused a significant increase in skin thickness in dermatoporotic patients. This increase was more significant with 1% HAFi when compared to 0.2% HAFi. RAL and HAFi also caused a significant reduction in purpuric lesions in patients with dermatoporosis.<br />Conclusion: Our results indicate that topically applied RAL and HAFi regulate hyalurosome gene expression in dermatoporosis and that they show a dose-dependent effect on the correction of skin atrophy in dermatoporotic patients.
- Subjects :
- Adjuvants, Immunologic administration & dosage
Administration, Topical
Atrophy diagnostic imaging
Atrophy pathology
Biopsy
Cell Adhesion Molecules biosynthesis
Dose-Response Relationship, Drug
Drug Therapy, Combination
Follow-Up Studies
Forearm
Heparin-binding EGF-like Growth Factor biosynthesis
Humans
Hyaluronan Receptors biosynthesis
Hyaluronoglucosaminidase biosynthesis
Keratinocytes metabolism
RNA, Messenger genetics
Real-Time Polymerase Chain Reaction
Retrospective Studies
Skin diagnostic imaging
Skin pathology
Skin Diseases diagnosis
Skin Diseases metabolism
Time Factors
Treatment Outcome
Ultrasonography
Cell Adhesion Molecules genetics
Gene Expression Regulation
Heparin-binding EGF-like Growth Factor genetics
Hyaluronan Receptors genetics
Hyaluronic Acid administration & dosage
Hyaluronoglucosaminidase genetics
Retinaldehyde administration & dosage
Skin Diseases genetics
Subjects
Details
- Language :
- English
- ISSN :
- 1421-9832
- Volume :
- 229
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Dermatology (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 25138066
- Full Text :
- https://doi.org/10.1159/000362594