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Published:
Jun 25, 2020DOI:
10.4314/tjpr.v19i5.4Keywords:
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Main Article Content
Fucoxanthin improves functional recovery of orbitopathy in Graves’ disease by downregulating IL-17 mRNA expression in a mouse model
Abstract
Purpose: To explore the efficacy of fucoxanthin (FX), a carotenoid, against inflammation via inhibition of IL-17 mRNA expression, and its anti-oxidant activity in Graves’ orbitopathy (GO)-induced mice model.
Methods: The effects of FX on IL-6, IL-8, IL-17, MCP-1, and TNF-α, in orbital fibroblast tissues extracted from GO-induced BALB/c mice was investigated. Anti-oxidative stress markers, 8-hydroxy-2’- deoxyguanosine (8-OHdG) and malondialdehyde (MDA) levels were quantified in tear samples collected from GO-induced FX treated mice.
Results: FX administration in cultured human orbital fibroblast cells revealed almost complete cell viability and no cell apoptosis. FX resulted in IL-1β induced Beclin-1 and Atg-5 silencing, in cultured human orbital fibroblasts. BALB/c mice immunized with Ad-TSHR289 indicated elevated levels of
thyroid peroxidase and thyroglobulin antibodies in the serum sample. FX predominantly downregulated the mRNA expression of IL-17, and also reduced increased 8-OHdG and MDA in the tear secretion of GO-induced mice.
Conclusion: FX may be an effective and useful molecule for the treatment of GO, through its antiinflammatory and anti-oxidative potential, but it requires further investigation to ascertain its therapeutic effectiveness.
Keywords: Anti-inflammatory, Anti-oxidant, Fucoxanthin, Graves’ disease, Graves’ orbitopathy, IL-17
