Protective Eects of Fucoidan Isolated from Celluclast-Assisted Extract of Undaria pinnatifida Sporophylls against AAPH-Induced Oxidative Stress In Vitro and In Vivo Zebrafish Model
Jae-Young Oh, Eun-A Kim, Sang In Kang, Hye-Won Yang, Bomi Ryu, Lei Wang, Jung-Suck Lee, You-Jin Jeon
언어
영어(ENG)
URL
https://www.earticle.net/Article/A390096
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원문정보
초록
영어
Peroxiredoxins (Prxs) are cysteine-dependent antioxidant proteins that play a leading part in oxidative stress response. Peroxiredoxin 4 (Prx4) is located in the endoplasmic reticulum, where it is primarily involved in regulating the concentration of H2O2, generated during protein folding. Prx4 is also located in the extracellular space, where it activates the JAK/STAT-mediated stress response. Here, we focus on the identification and characterization of the sequence and function of Prx4 from the big-belly seahorse (Hippocampus abdominalis) (HaPrx4). The size of the HaPrx4 coding sequence was 777 bp, which encoded a 258 amino acid protein of 28.8 kDa molecular weight. The amino acid sequence comprises a signal peptide, two active sites with peroxidatic cysteine and resolving cysteine, catalytic triad, and peroxiredoxin superfamily domain. According to the tissue distribution results, ovaries exhibited the highest HaPrx4 expression level within fourteen examined tissues. The HaPrx4 transcriptional responses to four immune stimulants (lipopolysaccharides, polyinosinic: polycytidylic acid, Edwardsiella tarda, and Streptococcus iniae) were evaluated in the blood and liver tissues. Additionally, the functions of recombinant HaPrx4 protein were evaluated by metal ion-catalyzed oxidation assay, peroxidase activity assay, insulin reduction assay, cell viability assay, and Hoechst staining. The assay results confirmed that the functions of HaPrx4 involved DNA protection, hydrogen peroxide (H2O2) elimination, oxidoreductase activity, enhancing cell survival, and cell protection. The results of the current study propose that HaPrx4 is effectively involved in H2O2 scavenging activity during stress conditions and in innate immune responses of the big-belly seahorse.
Jae-Young Oh [ Department of Marine Life Science, Jeju National University, Jeju City 63243, Korea ]
Eun-A Kim [ Jeju International Marine Science Center for Research & Education, Korea Institute of Ocean Science and Technology, Jeju City ]
Sang In Kang [ Department of Seafood and Aquaculture Science, Gyeongsang National University, Tongyeong 53064, Korea ]
Hye-Won Yang [ Department of Marine Life Science, Jeju National University, Jeju City 63243, Korea ]
Bomi Ryu [ Department of Marine Life Science, Jeju National University, Jeju City 63243, Korea ]
Lei Wang [ Marine Science Institute, Jeju National University, Jeju City 63333, Korea ]
Jung-Suck Lee [ Research Center for Industrial Development of Seafood, Gyeongsang National University ]
Corresponding Author
You-Jin Jeon [ Department of Marine Life Science, Jeju National University, Jeju City 63243, Korea, Department of Seafood and Aquaculture Science, Gyeongsang National University, Tongyeong 53064, Korea ]
Corresponding Author
제주대학교 해양과학연구소 [Marine Science Institute Jeju National University]
설립연도
1968
분야
농수해양>수산학
소개
해양의 실체와 그 자원의 합리적 이용과 관리방법을 규명하기 위하여 해양물리, 화학, 생물, 지질, 공학등 여러 관련분야에 관한 다양한 연구를 수행하며, 환경의 보전과 보호를 위해서 수질, 대기, 상·하수도, 폐기물, 사회적 환경 등의 연구를 통하여 쾌적하고 청정한 환경을 보전하기 위한 다양한 연구를 수행하고, 또한 해양 및 환경분야의 우수한 인력양성, 국내외 학술교류의 증진, 학·산 협동체제의 확립 등을 통하여 해양과 환경에 관한 기초 및 응용적 학술연구를 종합적으로 수행함을 목적으로 한다.
간행물
간행물명
해양과학연구소 연구논문집 [Bulletin of the Marine Science Institute]