Journal
BIOCHEMISTRY AND CELL BIOLOGY
Volume 97, Issue 6, Pages 681-692Publisher
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/bcb-2018-0321
Keywords
atherosclerosis; high glucose; Hsp27; inflammation; NF-kappa B; Noxa; schisandrin B.
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Funding
- Youth Science Foundation of Guangxi Medical University [GXMUYSF 201711]
- Key Research and Development Program of Guangxi [GUI KE AB17292090]
- Foundation of Guangxi Health and Family Planning Commission [Z20170029]
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Background: To address the molecular mechanism of the anti-inflammation effects of schisandrin B (Sch B) in atherosclerosis, we examined injured HMEC-1, HBMEC, and HUVEC-12 cells induced by high glucose (HG). Methods: Western blot was performed to detect the levels of the proteins Hsp27, Noxa, TLR5, p-I kappa B alpha, and p-p65 in HG-induced cells, while ELISA was used to analyze the inflammatory cytokines TNF-alpha, IL-6, MCP-1, and IL-1 beta in cells with Hsp27 or Noxa stable expression. Results: Overexpression of Hsp27 upregulated the inflammatory cytokines and the release of I kappa B alpha, promoted transportation of p65 into the nucleus, and lastly, affected the inflammation process, while Sch B counteracted the upregulation. In addition, the effect of Noxa overexpression, which is different from Hsp27 overexpression, was consistent with that of Sch B treatment. Conclusions: Sch B may inhibit the inflammatory cascade and alleviate the injury to HMEC-1, HBMEC, and HUEVC-12 cells caused by HG by regulating the Noxa/Hsp27/NF-kappa B signaling pathway.
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