Differential Effects of Corticosteroids and Pimecrolimus on the Developing Skin Immune System in Humans and Mice
| Autor: | Adelheid Elbe-Bürger, Christine Vaculik, Johnnie Akgün, Gero Kramer, Simone Meindl, Marion Prior, Georg Stingl, Anton Stuetz, Josef G. Meingassner |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Adult
Keratinocytes medicine.drug_class Cell Survival Apoptosis Dermatology Biochemistry Tacrolimus 03 medical and health sciences Pimecrolimus Mice 0302 clinical medicine Immune system Downregulation and upregulation Adrenal Cortex Hormones hemic and lymphatic diseases medicine Animals Humans Molecular Biology Cells Cultured 030304 developmental biology Antibacterial agent Skin CD86 0303 health sciences Betamethasone Valerate Mice Inbred BALB C business.industry Stem Cells Infant Newborn Atopic dermatitis Cell Biology medicine.disease 3. Good health Calcineurin Langerhans Cells Immunology Corticosteroid Cytokines business 030215 immunology medicine.drug |
| Zdroj: | Journal of Investigative Dermatology. 129(9):2184-2192 |
| ISSN: | 0022-202X |
| DOI: | 10.1038/jid.2009.50 |
| Popis: | Atopic dermatitis arises primarily in early infancy. In these patients, corticosteroids are used especially with great caution because of their side effects. Calcineurin inhibitors such as pimecrolimus (PIM) could be useful, but safety concerns have been raised in particular because of the lack of knowledge about their effects on the developing skin immune system. This study was designed to investigate the impact of PIM and corticosteroids on epidermal cells (EC) in infants and newborn mice. We found that the percentage of unfractionated viable infant ECs was significantly decreased in the presence of beta-methasone-17-valerate (BMV) but not PIM. Exposure of unfractionated infant ECs to BMV but not to PIM and vehicle control caused a significant inhibition of the upregulation of CD86 molecules on Langerhans cells (LC). The release of cytokines by LCs and ECs, cultured in the presence of BMV and PIM, was not significantly reduced compared with controls. Topical corticosteroid but not PIM application onto newborn mice induced apoptosis in some LC precursors. Our data suggest that similar to the situation in adult skin, corticosteroids may impair LC maturation as well as viability of ECs in infants, effects not seen with PIM. |
| Databáze: | OpenAIRE |
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