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Effects of ammonia exposure on apoptosis, oxidative stress and immune response in pufferfish (Takifugu obscurus)
Cheng, Chang-Hong1; Yang, Fang-Fang1; Ling, Ren-Zhi1; Liao, Shao-An1; Miao, Yu-Tao1; Ye, Chao-Xia1; Wang, An-Li1; chaoxia_ye@yahoo.com.cn; wanganl@scnu.edu.cn
2015
Source PublicationAQUATIC TOXICOLOGY
Volume164Pages:61-71
AbstractAmmonia is one of major environmental pollutants in the freshwater aquatic system that affects the survival and growth of organisms. In the present study, we investigated the effects of ammonia exposure on apoptosis, oxidative stress and immune response in pufferfish (Takifugu obscurus). Fish were exposed to various concentrations of ammonia (0, 1.43, 3.57, 7.14 mM) for 72 h. The date showed that ammonia exposure could induce intracellular reactive oxygen species (ROS), interrupt intracellular Ca2+ (cf-Ca2+) homeostasis, and subsequently lead to DNA damage and cell apoptosis. To test the apoptotic pathway, the expression patterns of some key apoptotic related genes including P53, Bax Bcl2, Caspase 9, Caspase 8 and Caspase 3 in the liver were examined. The results showed that ammonia stress could change these genes transcription, associated with increasing of cell apoptosis, suggesting that the P53-Bax-Bcl2 pathway and caspase-dependent apoptotic pathway could be involved in cell apoptosis induced by ammonia stress. In addition, ammonia stress could induced up-regulation of inflammatory cytokines (BAFF, TNF-alpha, IL-6 and IL-12) transcription, indicating that innate immune system play important roles in ammonia-induced toxicity in fish. Furthermore, the gene expressions of antioxidant enzymes (Mn-SOD, CAT, GPx, and GR) and heat shock proteins (HSP90 and HSP70) in the liver were induced by ammonia stress, suggesting that antioxidant system and heat shock proteins tried to protect cells from oxidative stress and apoptosis induced by ammonia stress. Our results will be helpful to understand the mechanism of aquatic toxicology induced by ammonia in fish. (C) 2015 Elsevier B.V. All rights reserved.
DepartmentLMB
KeywordTakifugu Obscurus Ammonia Stress Apoptosis Oxidative Stress Immune Response
Subject AreaMarine & Freshwater Biology ; Toxicology
URL查看原文
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/14810
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding Authorchaoxia_ye@yahoo.com.cn; wanganl@scnu.edu.cn
Affiliation1.[Cheng, Chang-Hong
2.Ling, Ren-Zhi
3.Liao, Shao-An
4.Miao, Yu-Tao
5.Ye, Chao-Xia
6.Wang, An-Li] S China Normal Univ, Sch Life Sci, Guangdong Higher Educ Inst,Key Lab Ecol & Environ, Guangdong Prov Key Lab Hlth & Safe Aquaculture, Guangzhou 510631, Guangdong, Peoples R China
7.[Yang, Fang-Fang] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Cheng, Chang-Hong,Yang, Fang-Fang,Ling, Ren-Zhi,et al. Effects of ammonia exposure on apoptosis, oxidative stress and immune response in pufferfish (Takifugu obscurus)[J]. AQUATIC TOXICOLOGY,2015,164:61-71.
APA Cheng, Chang-Hong.,Yang, Fang-Fang.,Ling, Ren-Zhi.,Liao, Shao-An.,Miao, Yu-Tao.,...&wanganl@scnu.edu.cn.(2015).Effects of ammonia exposure on apoptosis, oxidative stress and immune response in pufferfish (Takifugu obscurus).AQUATIC TOXICOLOGY,164,61-71.
MLA Cheng, Chang-Hong,et al."Effects of ammonia exposure on apoptosis, oxidative stress and immune response in pufferfish (Takifugu obscurus)".AQUATIC TOXICOLOGY 164(2015):61-71.
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