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2015 ; 7
(1
): e1010983
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A vitamin D analog inhibits Th2 cytokine- and TGF? -induced periostin production
in fibroblasts: a potential role for vitamin D in skin sclerosis
#MMPMID26413189
Terao M
; Yang L
; Matsumura S
; Yutani M
; Murota H
; Katayama I
Dermatoendocrinol
2015[Jan]; 7
(1
): e1010983
PMID26413189
show ga
Scleroderma is an autoimmune disease characterized by extracellular matrix
deposition and inflammation. Topical vitamin D analogs have been reported as
effective treatments for scleroderma. We previously reported that a matricellular
protein, periostin (POSTN), contributes to pathogenesis of scleroderma as POSTN
knockout mice were resistant to bleomycin (BLM)-induced scleroderma. We
investigated whether a vitamin D analog affects the expression of POSTN in dermal
fibroblasts and in a BLM-induced scleroderma model. The vitamin D analog,
maxacalcitol (22-oxacalcitriol [OCT]), was applied to dermal fibroblasts and
POSTN expression was measured. The effect of OCT on Th2 cytokine- and
TGF?-induced POTSN and Collagen 1 ? 1 (Col1A1) expression was also assessed. In
vivo, OCT was administered to BLM-induced scleroderma model and outcomes were
determined by dermal thickness, collagen density and POSTN expression. Treatment
with OCT significantly decreased POSTN expression in dermal fibroblasts. Th2
cytokine- and TGF?-induced expression of POSTN and Col1A1 was also suppressed by
OCT. In vivo, OCT administration decreased the density of collagen bundles and
POSTN expression in a BLM-induced scleroderma model. In addition to the
previously reported immunosuppressive effect, the vitamin D analog OCT might be
effective to treat scleroderma, in part through inhibition of Th2 cytokine- and
TGF?-induced POSTN expression.