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Allogeneic fibroblast cell therapy in the treatment of recessive dystrophic epidermolysis bullosa
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01.06.2018 |
Kubanov A.
Karamova A.
Albanova V.
Smoliannikova V.
Nefedova M.
Chikin V.
Monchakovskaya E.
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Wound Medicine |
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© 2018 Elsevier GmbH Background: The non-healing wound is a characteristic clinical sign in recessive dystrophic epidermolysis bullosa (RDEB). Methods: Six patients with recessive dystrophic epidermolysis bullosa were injected with suspension of allogeneic fibroblasts into erosion margins. Erosions (>1 month old) with surface area between 2 cm2 and 28 cm2 were selected for treatment. The patients were administered with 1 mL suspension of allogeneic fibroblasts with concentration 5 × 106 cells/ml, 10 × 106 cells/ml and 20 × 106 cells/ml. Paired erosions were injected with vehicle solution alone. All erosions were assessed for healing rate and biopsied at baseline and at two weeks after treatment. Immunofluorescence antigen mapping (IFM) was performed to detect C7 expression. Results: An increase of healing rate was detected 14 days after fibroblasts and vehicle alone injections, in some cases with complete erosion closure. The results of the IFM in patients treated with allogeneic fibroblasts and vehicle solution demonstrated the increase of collagen VII expression in dermo-epidermal junction, more intensive in patients injected with 20 × 106 cells/ml. Conclusions: Intradermal administration of allogeneic fibroblasts is a safe and effective method of treatment of non-healing wounds in recessive dystrophic epidermolysis bullosa.
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