|
1
|
Niu T, Xuan R, Jiang L, Wu W, Zhen Z, Song Y, Hong L, Zheng K, Zhang J, Xu Q, Tan Y, Yan X, Chen H. Astaxanthin Induces the Nrf2/HO-1 Antioxidant Pathway in Human Umbilical Vein Endothelial Cells by Generating Trace Amounts of ROS. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:1551-1559. [PMID: 29381356 DOI: 10.1021/acs.jafc.7b05493] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Astaxanthin is a powerful antioxidant that possesses potent protective effects against various human diseases and physiological disorders. However, the mechanisms underlying its antioxidant functions in cells are not fully understood. In the present study, the effects of astaxanthin on reactive oxygen species (ROS) production and antioxidant enzyme activity, as well as mitogen-activated protein kinases (MAPKs), phosphatidylinositol 3-kinase (PI3K)/Akt, and the nuclear factor erythroid 2-related factor 2 (Nrf-2)/heme oxygenase-1 (HO-1) pathways in human umbilical vein endothelial cells (HUVECs), were examined. It was shown that astaxanthin (0.1, 1, and 10 μM) induced ROS production by 9.35%, 14.8%, and 18.06% compared to control, respectively, in HUVECs. In addition, astaxanthin increased the mRNA levels of phase II enzymes HO-1 and also promoted GSH-Px enzyme activity. Furthermore, we observed ERK phosphorylation, nuclear translocation of Nrf-2, and activation of antioxidant response element-driven luciferase activity upon astaxanthin treatment. Knockdown of Nrf-2 by small interfering RNA inhibited HO-1 mRNA expression by 60%, indicating that the Nrf-2/ARE signaling pathway is activated by astaxanthin. Our results suggest that astaxanthin activates the Nrf-2/HO-1 antioxidant pathway by generating small amounts of ROS.
Collapse
Affiliation(s)
- Tingting Niu
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University , Ningbo, Zhejiang 315211, China
- Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture School of Marine Sciences, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Rongrong Xuan
- Department of Gynecology and Obstetrics, The Affiliated Hospital of Medical College of Ningbo University , Ningbo, Zhejiang 315211, China
| | - Ligang Jiang
- PROYA Companies , Hangzhou, Zhejiang 310012, China
| | - Wei Wu
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Zhanghe Zhen
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Yuling Song
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Lili Hong
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Kaiqin Zheng
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Jiaxing Zhang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Qingshan Xu
- Chenghai Baoer Bio-Ltd , Lijiang, Yunnan 674202, China
| | - Yinghong Tan
- Chenghai Baoer Bio-Ltd , Lijiang, Yunnan 674202, China
| | - Xiaojun Yan
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Haimin Chen
- Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University , Ningbo, Zhejiang 315211, China
| |
Collapse
|
|
2
|
Polidori MC, Scholtes M. Beyond and behind the fingerprints of oxidative stress in age-related diseases: Secrets of successful aging. Arch Biochem Biophys 2016; 595:50-3. [PMID: 27095215 DOI: 10.1016/j.abb.2015.06.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 06/13/2015] [Indexed: 11/29/2022]
Abstract
Several years after the first publication of the definition of oxidative stress by Helmut Sies, this topic is still focus of a large body of attention and research in the field of aging, neurodegeneration and disease prevention. The conduction of clinical and epidemiological research without a solid biochemical rationale has led to largely frustrating results without being able to disprove the oxidative stress hypothesis. The present work is dedicated to Helmut Sies and describes the successful scientific approach to bench-to-bedside (-to-behavior) oxidative stress clinical research.
Collapse
Affiliation(s)
- M Cristina Polidori
- Ageing Clinical Research, Dpt. II Internal Medicine, University Hospital of Cologne, Cologne, Germany.
| | - Marlies Scholtes
- Institute of Biochemistry and Molecular Biology I, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| |
Collapse
|