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2016 ; 19
(4
): 374-80
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Effects of 1,25-dihydroxyvitamin D3 on IL-17/IL-23 axis, IFN-? and IL-4
expression in systemic lupus erythematosus induced mice model
#MMPMID27279980
Faraji F
; Rastin M
; Arab FL
; Kalantari MR
; Rabe SZ
; Tabasi N
; Mahmoudi M
Iran J Basic Med Sci
2016[Apr]; 19
(4
): 374-80
PMID27279980
show ga
OBJECTIVES: Systemic lupus erythematosus (SLE) is a multi-factorial autoimmune
disease which may be characterized by T lymphocytes dysfunctions. Th17 cells have
been identified as new effector cells, which play an important role in the
pathogenesis. In recent years, immunomodulatory effect of vitamin D3 has been
noticed. In the present experiment, the effect of vitamin D3 on the expression of
IL-17, IL-23, IL-4 and IFN-? were assessed in activated chromatin-induced mouse
model for SLE. MATERIALS AND METHODS: Five groups of mice were included in this
study; Group one received active chromatin +CFA + PBS; Group 2 received vitamin
D3 starting 2 weeks before disease induction; Group 3 received vitamin D3 (50
ng/day) starting with the disease establishment; Group 4 received non active
chromatin +CFA + PBS; Group 5 received CFA + PBS. On day 56 splenocytes were
isolated and gene expression of interleukin IL-17, IL-23, IL-4 and IFN-? were
analyzed by Real-Time PCR method. Proteinuria and serum anti-dsDNA and Th17
levels were measured using commercial kits. RESULTS: The results showed that
IL-17, IL-23, and IFN-? mRNA expression, and IL-17 titers were decreased
remarkably and that of IL-4 increased in mice which received vitamin D3 before
SLE induction. Administration of vitamin D3 after the establishment of SLE failed
to affect the IL-17 or IL-23 mRNA levels. Lastly, pre-treatment of mice with
vitamin D3 decreased the anti-ds DNA antibody titer. CONCLUSION: Our findings
showed that vitamin D3 supplementation in lupus induced mice through modulating
the expression rate of some inflammatory cytokines diminished the inflammatory
conditions in SLE.