Vitamin D Inhibits Lipopolysaccharide (LPS)-Induced Inflammation in A549 Cells by Downregulating Inflammatory Cytokines
Open Access
- 9 June 2021
- journal article
- research article
- Published by International Scientific Information, Inc. in Medical Science Monitor Basic Research
- Vol. 27, e931481-e931481-8
- https://doi.org/10.12659/msmbr.931481
Abstract
BACKGROUND:Studies have shown that lung inflammation affects lung function, with life-threatening results. Vitamin D may play an important role in inhibiting inflammatory cytokines. Vitamin D deficiency is related to several lung problems, including respiratory distress syndrome, alveolar inflammation, epithelial damage, and hypoxia. Few studies have evaluated the benefits of vitamin D in preventing inflammation in alveolar cells. MATERIAL AND METHODS:We developed a cell inflammation model induced by lipopolysaccharide (LPS) treatment. The effects of vitamin D on LPS-induced inflammation in A549 cells were examined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, and the anti-inflammatory mechanism of vitamin D was evaluated using western blot analysis. RESULTS:Our results indicated that vitamin D promoted A549 cell survival following LPS-induced inflammation by downregulating nuclear factor nuclear factor kappa light chain enhancer of activated B cells, tumor necrosis factor-alpha, interleukin (IL)-1ß, IL-6, and IL-12. CONCLUSIONS:Our results indicated that vitamin D has the potential to manage lung inflammation, although further studies are needed.Keywords
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