2020年11月19日
Novel fluorinated derivative of curcumin negatively regulates thioredoxin-interacting protein expression in retinal pigment epithelial and macrophage cells
Biochemical and Biophysical Research Communications
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- 巻
- 532
- 号
- 4
- 開始ページ
- 668
- 終了ページ
- 674
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.bbrc.2020.08.114
Thioredoxin-interacting protein (TXNIP) has multiple disease-associated functions including inducing oxidative stress by inhibiting the anti-oxidant and thiol reducing activity of thioredoxin (TRX), reducing cellular glucose transport, and is a component of the activated inflammasome complex. Increased expression of TXNIP is encountered in diabetic conditions of high glucose. Curcumin and chemical derivatives have multiple therapeutic properties as anti-inflammatories, anti-oxidants, amyloid aggregation inhibitors and modulate a number of cellular signaling pathways. Using a fluorinated-derivative of curcumin (designated Shiga-Y6), we showed significant inhibition of TXNIP mRNA and protein expression, and induction of TRX mRNA and protein in ARPE-19 retinal pigment epithelial cells and THP-1-derived macrophages, while the non-fluorinated structural equivalent (Shiga-Y52) and native curcumin did not show these same effects. Shiga-Y6 was effective in reducing high glucose, endoplasmic reticulum stress-induced TXNIP in ARPE-19 cells, and reducing lipopolysaccharide and endoplasmic stress-induced proinflammatory gene expression in THP-1 macrophages. Moreover, TXNIP-knockdown experiments showed that the anti-inflammatory effect of Shiga-Y6 in LPS-stimulated THP-1 macrophages was TXNIP-independent.
- リンク情報
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- DOI
- https://doi.org/10.1016/j.bbrc.2020.08.114
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/32912630
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85090478967&origin=inward 本文へのリンクあり
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85090478967&origin=inward
- ID情報
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- DOI : 10.1016/j.bbrc.2020.08.114
- ISSN : 0006-291X
- eISSN : 1090-2104
- PubMed ID : 32912630
- SCOPUS ID : 85090478967