Fucoidan Inhibits NLRP3 Inflammasome Activation by Enhancing p62SQSTM1-Dependent Selective Autophagy to Alleviate Atherosclerosis
Joint Authors
Yin, Ruihua
Yang, Shaonan
Pan, Xudong
Cheng, Yufei
Wang, Jing
Li, Xu
Ma, Aijun
Zhu, Xiaoyan
Source
Oxidative Medicine and Cellular Longevity
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-06
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome activation contributes to the progression of atherosclerosis, and autophagy inhibits inflammasome activation by targeting macrophages.
We investigated whether fucoidan, a marine sulfated polysaccharide derived from brown seaweeds, could reduce NLRP3 inflammasome activation by enhancing sequestosome 1 (p62/SQSTM1)-dependent selective autophagy to alleviate atherosclerosis in high-fat-fed ApoE-/- mice with partial carotid ligation and differentiated THP-1 cells incubated with oxidized low-density lipoprotein (oxLDL).
Fucoidan significantly ameliorated lipid accumulation, attenuated progression of carotid atherosclerotic plaques, deregulated the expression of NLRP3 inflammasome, autophagy receptor p62, and upregulated microtubule-associated protein light chain 3 (LC3)-II/I levels.
Transmission electron microscopy and GFP-RFP-LC3 lentivirus transfection further demonstrated that fucoidan could activate autophagy.
Mechanistically, fucoidan remarkably inhibited NLRP3 inflammasome activation, which was mostly dependent on autophagy.
The inhibitory effects of fucoidan on NLRP3 inflammasome were enhanced by autophagy activator rapamycin (Rapa) and alleviated by autophagy inhibitor 3-methyladenine (3-MA).
Fucoidan promoted the colocalization of NLRP3 and p62.
Knockdown of p62 and ATG5 by small interfering RNA significantly reduced the inhibitory effects of fucoidan treatment on NLRP3 inflammasome.
The data suggest that fucoidan can inhibit NLRP3 inflammasome activation by enhancing p62/SQSTM1-dependent selective autophagy to alleviate atherosclerosis.
American Psychological Association (APA)
Cheng, Yufei& Pan, Xudong& Wang, Jing& Li, Xu& Yang, Shaonan& Yin, Ruihua…[et al.]. 2020. Fucoidan Inhibits NLRP3 Inflammasome Activation by Enhancing p62SQSTM1-Dependent Selective Autophagy to Alleviate Atherosclerosis. Oxidative Medicine and Cellular Longevity،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1204209
Modern Language Association (MLA)
Cheng, Yufei…[et al.]. Fucoidan Inhibits NLRP3 Inflammasome Activation by Enhancing p62SQSTM1-Dependent Selective Autophagy to Alleviate Atherosclerosis. Oxidative Medicine and Cellular Longevity No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1204209
American Medical Association (AMA)
Cheng, Yufei& Pan, Xudong& Wang, Jing& Li, Xu& Yang, Shaonan& Yin, Ruihua…[et al.]. Fucoidan Inhibits NLRP3 Inflammasome Activation by Enhancing p62SQSTM1-Dependent Selective Autophagy to Alleviate Atherosclerosis. Oxidative Medicine and Cellular Longevity. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1204209
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204209