F A Castelijns, M J Gerritsen, P E van Erp, P C van de Kerkhof
Journal: Dermatology (Basel, Switzerland) 2000;200(1):25-30
PMID: 10681609
BACKGROUND
Hydrocolloid (HCD) dressings enhance the efficacy of topical corticosteroids.
OBJECTIVE
We wanted to evaluate the effect of calcipotriol ointment under an HCD dressing in the treatment of psoriatic plaques.
METHODS
In 9 psoriatic patients, we cleared one plaque using this approach and took biopsies at start, clearance and relapse. Clinical and immunohistochemical validation was assessed.
RESULTS
After an average treatment of 3.6 weeks, each lesion had cleared (apart from some residual erythema). The average remission period was 8 weeks. During this treatment, the number of cycling epidermal cells (Ki-67-positive nuclei) and the expression of keratin 14 and keratin 16 had decreased substantially. In biopsies taken from the skin immediately adjacent to the relapsing lesion, these markers remained reduced which indicated the prolonged effect of calcipotriol on epidermal differentiation.
CONCLUSION
It is speculated that combination therapy of calcipotriol with treatments with a different mode of action such as photo(chemo)therapy, corticosteroids and cyclosporine might be worthwhile.
Copyright (R) 2000 S. Karger AG, Basel
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