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2018 | 23 |

Tytuł artykułu

Lycium barbarum polysaccharide protects HSF cells against ultraviolet-induced damage through the activation of Nrf2

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Background: Lycium barbarum polysaccharide (LBP) is considered an antioxidant agent. NF-E2-related factor-2 (Nrf2) is an important regulator for protection against UV damage. In this study, we verified the performance of LBP and the correlation between LBP and Nrf2. Methods: HSF cells were treated with LBP to determine dose and time dependencies. An antioxidant response element (ARE) reporter was designed to monitor the activity of the Nrf2 antioxidant pathway. Results: For HSF cells, the optimal LBP treatment was 300 μg/ml for 3 h. The AREreporter assay showed that LBP could increase the robustness of p-Nrf2. Treatments with genistein and LY294002 reduced of nuclear p-Nrf2 after 24 h. LBP increased the level of nuclear Nrf2, which functions by both phosphorylation and nuclear translocation. Silencing Nrf2 led to increased reactive oxygen species (ROS) levels, lower cell viability, and decreased superoxide dismutase (SOD) and glutathione peroxidase (GSP-PX) levels. This induced a higher level of lipid peroxide (LPO). However, LBP could decrease the levels of ROS and LPO and enhance the levels of SOD and GSP-PX. Conclusion: LBP protects HSF cells against UV damage via the regulation of Nrf2.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

23

Opis fizyczny

p.1-13,fig.,ref.

Twórcy

autor
  • Guangzhou Institute of Dermatology, Guangzhou, China
autor
  • Guangzhou Institute of Dermatology, Guangzhou, China
autor
  • Guangzhou Institute of Dermatology, Guangzhou, China
autor
  • Guangzhou Institute of Dermatology, Guangzhou, China
autor
  • Guangzhou Institute of Dermatology, Guangzhou, China
autor
  • Guangzhou Institute of Dermatology, Guangzhou, China
autor
  • Guangzhou Institute of Dermatology, Guangzhou, China
autor
  • Guangzhou Institute of Dermatology, Guangzhou, China
autor
  • Guangzhou Institute of Dermatology, Guangzhou, China
autor
  • Guangzhou Institute of Dermatology, Guangzhou, China

Bibliografia

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Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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