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mTORC1 activation contributes to autophagy inhibition via its recruitment to lysosomes and consequent lysosomal dysfunction in cadmium-exposed rat proximal tubular cells. J Inorg Biochem 2020; 212:111231. [DOI: 10.1016/j.jinorgbio.2020.111231] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/14/2020] [Accepted: 08/15/2020] [Indexed: 12/13/2022]
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52
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Wang Y, Liu J, Chen R, Qi M, Tao D, Xu S. The Antagonistic Effects of Selenium Yeast (SeY) on Cadmium-Induced Inflammatory Factors and the Heat Shock Protein Expression Levels in Chicken Livers. Biol Trace Elem Res 2020; 198:260-268. [PMID: 32016827 DOI: 10.1007/s12011-020-02039-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 01/07/2020] [Indexed: 12/13/2022]
Abstract
Cadmium (Cd) is a ubiquitous toxic heavy metal in the natural environment that can cause multiple organ damage to the bodies of animals and humans. Selenium yeast (SeY) is a kind of organic selenium (Se) that has a very strong function against Cd-induced injury to tissues or organs. The aim of the current study was to investigate the roles of inflammatory factors and heat shock proteins (HSPs) in inflammatory injury triggered by Cd and to analyze the protective effects of SeY on Cd-induced damnification in the livers of chickens. Two hundred 120-day-old layers were randomly divided into four groups and raised on a conventional diet, or with Se (0.5 mg/kg SeY), Cd (150 mg/kg CdCl2), or Se + Cd (0.5 mg/kg SeY and 150 mg/kg CdCl2) in their basic diets for 120 days. Then, the liver histopathology, production of nitric oxide (NO), activity of inducible NO synthase (iNOS), and mRNA and protein expression levels of inflammatory factors (iNOS, NF-κB, TNF-α, and PTGE) and heat shock proteins (HSPs 27, 40, 60, 70, and 90) were examined. The results showed that exposure to Cd obviously increased Cd accumulation, NO production, iNOS activity, inflammatory factor, and HSP mRNA and protein expression levels and further caused an inflammatory response. Supplementation with SeY had an antagonistic effect on Cd-induced inflammatory injury in chicken livers. Thus, the present study suggests that SeY can be taken as a potential therapeutic for Cd-induced liver inflammatory injury in chickens.
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Affiliation(s)
- Yong Wang
- College of Animal Science, Tarim University, Alar, 843300, Xinjiang Uygur Autonomous Region, China
| | - Junfeng Liu
- College of Animal Science, Tarim University, Alar, 843300, Xinjiang Uygur Autonomous Region, China
| | - Rong Chen
- College of Animal Science, Tarim University, Alar, 843300, Xinjiang Uygur Autonomous Region, China
| | - Meng Qi
- College of Animal Science, Tarim University, Alar, 843300, Xinjiang Uygur Autonomous Region, China
| | - Dayong Tao
- College of Animal Science, Tarim University, Alar, 843300, Xinjiang Uygur Autonomous Region, China.
| | - Shiwen Xu
- College of Animal Science, Tarim University, Alar, 843300, Xinjiang Uygur Autonomous Region, China
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53
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Zhu Y, Costa M. Metals and molecular carcinogenesis. Carcinogenesis 2020; 41:1161-1172. [PMID: 32674145 PMCID: PMC7513952 DOI: 10.1093/carcin/bgaa076] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/19/2020] [Accepted: 07/13/2020] [Indexed: 12/11/2022] Open
Abstract
Many metals are essential for living organisms, but at higher doses they may be toxic and carcinogenic. Metal exposure occurs mainly in occupational settings and environmental contaminations in drinking water, air pollution and foods, which can result in serious health problems such as cancer. Arsenic (As), beryllium (Be), cadmium (Cd), chromium (Cr) and nickel (Ni) are classified as Group 1 carcinogens by the International Agency for Research on Cancer. This review provides a comprehensive summary of current concepts of the molecular mechanisms of metal-induced carcinogenesis and focusing on a variety of pathways, including genotoxicity, mutagenesis, oxidative stress, epigenetic modifications such as DNA methylation, histone post-translational modification and alteration in microRNA regulation, competition with essential metal ions and cancer-related signaling pathways. This review takes a broader perspective and aims to assist in guiding future research with respect to the prevention and therapy of metal exposure in human diseases including cancer.
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Affiliation(s)
- Yusha Zhu
- Department of Environmental Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Max Costa
- Department of Environmental Medicine, New York University Grossman School of Medicine, New York, NY, USA
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Gong Y, Yang J, Cai J, Liu Q, Zhang Z. Selenoprotein Gpx3 knockdown induces myocardial damage through Ca 2+ leaks in chickens. Metallomics 2020; 12:1713-1728. [PMID: 32968752 DOI: 10.1039/d0mt00027b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Glutathione peroxidase 3 (Gpx3) is a pivotal selenoprotein that acts as an antioxidant. However, the role of Gpx3 in maintaining the normal metabolism of cardiomyocytes remains to be elucidated in more detail. Herein, we employed a model of Gpx3 interference in chicken embryos in vivo and Gpx3 knockdown chicken cardiomyocytes in vitro. Real-time PCR, western blotting and fluorescent staining were performed to detect reactive oxygen species (ROS), the calcium (Ca2+) concentration, endoplasmic reticulum (ER) stress, myocardial contraction, inflammation and heat shock proteins (HSPs). Our results revealed that Gpx3 suppression increased the level of ROS, which induced Ca2+ leakage in the cytoplasm by blocking the expression of Ca2+ channels. The imbalance of Ca2+ homeostasis triggered ER stress and blocked myocardial contraction. Furthermore, we found that Ca2+ imbalance in the cytoplasm induced severe inflammation, and HSPs might play a protective role throughout these processes. In conclusion, Gpx3 suppression induces myocardial damage through the activation of Ca2+-dependent ER stress.
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Affiliation(s)
- Yafan Gong
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
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Bhardwaj JK, Panchal H, Saraf P. Cadmium as a testicular toxicant: A Review. J Appl Toxicol 2020; 41:105-117. [DOI: 10.1002/jat.4055] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/04/2020] [Accepted: 08/10/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Jitender Kumar Bhardwaj
- Reproductive Physiology Laboratory, Department of Zoology Kurukshetra University Kurukshetra Haryana India
| | - Harish Panchal
- Reproductive Physiology Laboratory, Department of Zoology Kurukshetra University Kurukshetra Haryana India
| | - Priyanka Saraf
- Reproductive Physiology Laboratory, Department of Zoology Kurukshetra University Kurukshetra Haryana India
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Wang J, Zhu H, Wang K, Yang Z, Liu Z. Protective effect of quercetin on rat testes against cadmium toxicity by alleviating oxidative stress and autophagy. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:25278-25286. [PMID: 32347499 DOI: 10.1007/s11356-020-08947-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
Cadmium (Cd), a highly toxic heavy metal, adversely affects human and animal health. Quercetin (Que) is a kind of flavonoid that can protect many tissues from the toxic effect of heavy metals. Although many studies have explored the adverse effects of cadmium on rats and other animals, the mechanism of Cd-induced testicular autophagy and the antagonistic effect of Que on cadmium remain unclear. In this study, Sprague-Dawley rats were treated with Cd, Que or Cd, and Que supplements to explore the mechanisms of Que-alleviated testis injury caused by Cd exposure. The rat body weight and relative testicular weight were measured. Morphological changes in testes and indices of oxidative stress were also examined. The expression levels of autophagy-related genes were detected as well. Results showed that Cd decreased the rat body weight and relative testicular weight and induced pathological changes in testes. Conversely, Que alleviated these changes. We also found that Cd increased the malondialdehyde content and decreased the contents of total superoxide dismutase, glutathione peroxidase, catalase, and glutathione. Moreover, the protein expression levels of P62 and LC3-II increased under Cd exposure conditions. Conversely, Que obviously alleviated these toxic activities induced by Cd. Overall, this study showed that Cd accumulated in rat testes, leading to oxidative stress and autophagy. Que can reduce cadmium toxicity by reducing oxidative stress and inhibiting autophagy. The specific mechanism of Que antagonizing Cd toxicity can provide new insights into countering cadmium toxicity.
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Affiliation(s)
- Jicang Wang
- College of Animal Science and Technology, Henan University of Science and Technology, No.263, Kaiyuan Avenue, Luoyang, 471023, People's Republic of China.
| | - Huali Zhu
- Law hospital, Henan University of Science and Technology, No.263, Kaiyuan Avenue, Luoyang, 471023, People's Republic of China
| | - Ke Wang
- College of Animal Science and Technology, Henan University of Science and Technology, No.263, Kaiyuan Avenue, Luoyang, 471023, People's Republic of China
| | - Zijun Yang
- College of Animal Science and Technology, Henan University of Science and Technology, No.263, Kaiyuan Avenue, Luoyang, 471023, People's Republic of China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, No.12, East Wenhui Road, Yangzhou, 225009, People's Republic of China
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Tang KK, Liu XY, Wang ZY, Qu KC, Fan RF. Trehalose alleviates cadmium-induced brain damage by ameliorating oxidative stress, autophagy inhibition, and apoptosis. Metallomics 2020; 11:2043-2051. [PMID: 31650140 DOI: 10.1039/c9mt00227h] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cadmium (Cd) is a persistent environmental contaminant and induces neurotoxicity in animals. Trehalose (Tre) exhibits powerful neuroprotective effects in certain brain injury models. Herein, we revealed the specific molecular mechanism underlying the protective effects of Tre against Cd-induced brain damage in rats. Firstly, the results showed that Tre significantly ameliorated brain pathological injury induced by Cd. Secondly, Cd-induced down-regulation of total anti-oxidation capacity (T-AOC) and up-regulation of methane dicarboxylic aldehyde (MDA) in brain tissues were significantly reversed by Tre treatment. Importantly, the augmentation of nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2) caused by Cd was significantly inhibited by Tre treatment. Thirdly, the levels of autophagy marker proteins were measured and the results showed that Tre significantly reversed the up-regulation of light chain 3II (LC-3II) and sequestosome 1 (SQSTM-1/p62) caused by Cd exposure. Finally, the apoptosis rate and the levels of apoptosis marker proteins including B cell leukemia/lymphoma 2 (Bcl2) and Bcl2-associated X protein (Bax) were also measured and the results showed that Cd-induced apoptosis was markedly inhibited by Tre treatment. Collectively, our data suggested that Tre exerted its neuroprotective effects by ameliorating oxidative stress, autophagy inhibition, and apoptosis induced by Cd in rat brains. In addition, the Nrf2 signaling pathway, which is continuously activated by Cd, may contribute to brain injury.
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Affiliation(s)
- Kou-Kou Tang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China.
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58
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Yang X, Zhao H, Wang Y, Liu J, Guo M, Fei D, Mu M, Xing M. The Activation of Heat-Shock Protein After Copper(II) and/or Arsenic(III)-Induced Imbalance of Homeostasis, Inflammatory Response in Chicken Rectum. Biol Trace Elem Res 2020; 195:613-623. [PMID: 31473897 DOI: 10.1007/s12011-019-01871-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 08/18/2019] [Indexed: 11/24/2022]
Abstract
Arsenic and copper, two toxic pollutants, are powerful inducers of oxidative stress. Exposure to copper and arsenic can cause intestinal injury in cockerel. This study was carried out to investigate the effects of these two pollutants on the gastrointestinal tract of cockerels. Experimental results showed that the activity of antioxidant enzymes (catalase and glutathione peroxidase) was inhibited and the ionic balance was destroyed after exposure to copper sulfate (300 mg/kg) and/or arsenic trioxide (30 mg/kg). However, the expression of pro-inflammatory cytokines (nuclear factor kappa-B, cyclooxygenase-2, tumor necrosis factor-α, and prostaglandin E2 synthases) increased markedly. Damages to the biofilm structure and inflammatory cell infiltration were simultaneously observed during histological examination. Heat-shock proteins were also expressed in large quantities after exposure to the poisons. Collectively, exposure to arsenite and/or Cu2+ can cause rectal damage in cockerels, inducing inflammation and an imbalance in immune system responses. Sometimes, exposure to both pollutants can produce even more toxic effects. Heat-shock proteins can protect the tissue from the exotoxins but the specific mechanisms require exploration. After oral ingestion of toxins, the rectum can still be damaged, necessitating attention to the safety of poultry breeding, human food safety, and environmental protection.
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Affiliation(s)
- Xin Yang
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Hongjing Zhao
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Yu Wang
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Juanjuan Liu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Menghao Guo
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Dongxue Fei
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Mengyao Mu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Mingwei Xing
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China.
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59
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Xiong X, Zhang Y, Xing H, Xu S. Ameliorative Effect of Selenomethionine on Cadmium-Induced Hepatocyte Apoptosis via Regulating PI3K/AKT Pathway in Chickens. Biol Trace Elem Res 2020; 195:559-568. [PMID: 31506910 DOI: 10.1007/s12011-019-01858-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 07/31/2019] [Indexed: 12/31/2022]
Abstract
Selenium (Se) is a trace element for human and animal health. Cadmium (Cd) is a known human carcinogen. The effects of Cd on the environment and humans are well known. Because chickens are at the top of the food chain, it is a good experimental animal model for assessing heavy metal toxicity and its potential threat to humans. Selenomethionine (Se-met) is a suitable form for nutritional Se supplementation. Therefore, the toxicity of Cd to the chicken liver and the antagonistic effects of Se-met on Cd were examined at the molecular level in the present study. The results showed that oxidative stress indicators (apoptosis-related genes, P13K/AKT pathway-related genes, and heat shock proteins (HSPs)-related genes) in the Cd group have changed significantly, indicating Cd induced hepatocyte stress and apoptosis. Interestingly, the changes in oxidative stress indicators (apoptosis-related genes, P13K/AKT pathway-related genes, and HSPs-related genes) in the Cd-Se-met group were mitigated compared with the control group. Our results indicated that Cd can induce hepatocyte apoptosis and stress in the chickens. Se-met has an ameliorative effect on Cd-induced apoptosis of chicken hepatocyte by regulating PI3K/AKT pathway. Our findings will provide a new insight for better understanding of the detoxification function of Se-met to heavy metals.
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Affiliation(s)
- Xiaoyu Xiong
- College of Veterinary Medicine, Northeast Agricultural University, 59 Mucai Street, Harbin, 150030, China
| | - Yu Zhang
- College of Animal Science and Technology, Northeast Agricultural University, 59 Mucai Street, Harbin, 150030, China
- Heilongjiang Agricultural and Rural Department, 4-1 Wenfu Street, Harbin, 150060, China
| | - Houjuan Xing
- College of Animal Science and Technology, Northeast Agricultural University, 59 Mucai Street, Harbin, 150030, China.
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, 59 Mucai Street, Harbin, 150030, China.
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, Northeast Agricultural University, 59 Mucai Street, Harbin, 150030, China.
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60
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Zhuang J, Nie G, Yang F, Cao H, Xing C, Dai X, Hu G, Zhang C. Molybdenum and Cadmium co-induced the levels of autophagy-related genes via adenosine 5'-monophosphate-activated protein kinase/mammalian target of rapamycin signaling pathway in Shaoxing Duck (Anas platyrhyncha) kidney. Poult Sci 2020; 98:6533-6541. [PMID: 31424537 PMCID: PMC8913950 DOI: 10.3382/ps/pez477] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 07/31/2019] [Indexed: 12/14/2022] Open
Abstract
To investigate Molybdenum (Mo) and Cadmium (Cd) co-induced the levels of autophagy-related genes via AMPK/mTOR signaling pathway in Shaoxing Duck (Anas platyrhyncha) kidney, 60 healthy 11-day-old ducks were randomly divided into 6 groups, which were treated with Mo or/and Cd at different doses on the basal diet for 120 d. Kidney samples were collected on day 120 to determine the mRNA expression levels of adenosine 5′-monophosphate (AMP)-activated protein kinase α1 (AMPKα1), mammalian target of rapamycin (mTOR), Beclin-1, autophagy-related gene-5 (Atg5), microtubule-associated protein light chain A (LC3A), microtubule-associated protein light chain B (LC3B), sequestosome-1, and Dynein by real-time quantitative polymerase chain reaction. Meanwhile, ultrastructural changes of the kidney were observed. The results indicated that the mTOR and P62 mRNA expression levels were significantly downregulated, but the Atg5 and Beclin-1 mRNA levels were remarkably upregulated in all treated groups compared to control group, and their changes were greater in joint groups. Additionally, compared to control group, the Dynein mRNA expression level was apparently downregulated in co-treated groups, the LC3B, LC3A, and AMPKα1 expression levels were dramatically upregulated in single treated groups and they were not obviously different in co-treated groups. Ultrastructural changes showed that Mo and Cd could markedly increase the number of autophagosomes. Taken together, it suggested that dietary Mo and Cd might induce autophagy via AMPK/mTOR signaling pathway in duck kidney, and it showed a possible synergistic relationship between the 2 elements.
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Affiliation(s)
- Jionghan Zhuang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, Jiangxi, P. R. China
| | - Gaohui Nie
- School of Information Technology, Jiangxi University of Finance and Economics, Economic and Technological Development District, Nanchang 330032, Jiangxi, P. R. China
| | - Fan Yang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, Jiangxi, P. R. China
| | - Huabin Cao
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, Jiangxi, P. R. China
| | - Chenghong Xing
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, Jiangxi, P. R. China
| | - Xueyan Dai
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, Jiangxi, P. R. China
| | - Guoliang Hu
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, Jiangxi, P. R. China
| | - Caiying Zhang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, Jiangxi, P. R. China
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61
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Lőrincz P, Juhász G. Autophagosome-Lysosome Fusion. J Mol Biol 2020; 432:2462-2482. [DOI: 10.1016/j.jmb.2019.10.028] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/11/2019] [Accepted: 10/15/2019] [Indexed: 12/26/2022]
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62
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Cell organelles as targets of mammalian cadmium toxicity. Arch Toxicol 2020; 94:1017-1049. [PMID: 32206829 DOI: 10.1007/s00204-020-02692-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 02/25/2020] [Indexed: 02/07/2023]
Abstract
Ever increasing environmental presence of cadmium as a consequence of industrial activities is considered a health hazard and is closely linked to deteriorating global health status. General animal and human cadmium exposure ranges from ingestion of foodstuffs sourced from heavily polluted hotspots and cigarette smoke to widespread contamination of air and water, including cadmium-containing microplastics found in household water. Cadmium is promiscuous in its effects and exerts numerous cellular perturbations based on direct interactions with macromolecules and its capacity to mimic or displace essential physiological ions, such as iron and zinc. Cell organelles use lipid membranes to form complex tightly-regulated, compartmentalized networks with specialized functions, which are fundamental to life. Interorganellar communication is crucial for orchestrating correct cell behavior, such as adaptive stress responses, and can be mediated by the release of signaling molecules, exchange of organelle contents, mechanical force generated through organelle shape changes or direct membrane contact sites. In this review, cadmium effects on organellar structure and function will be critically discussed with particular consideration to disruption of organelle physiology in vertebrates.
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63
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Gao M, Dong Z, Sun J, Liu W, Xu M, Li C, Zhu P, Yang X, Shang X, Wu Y, Liu S. Liver-derived exosome-laden lncRNA MT1DP aggravates cadmium-induced nephrotoxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 258:113717. [PMID: 31864927 DOI: 10.1016/j.envpol.2019.113717] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/29/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
Cadmium (Cd) is a well-characterized toxic heavy metal which could cause severe kidney injury. However, currently the knowledge of Cd toxicity towards kidney is still insufficient. Our previous data has identified that MT1DP (metallothionein 1D pseudogene) could promote Cd-induced detrimental effects on hepatocytes. Herein, we further found that MT1DP was also an important intermediate to aggravate Cd-induced nephrotoxicity. Through analyzing the data of 100 residents from Cd-contaminated area in Southern China, we found that the blood MT1DP levels correlated to the urine Cd content and the extent of nephrotoxicity. Although MT1DP was predominantly induced by hepatocytes in the liver, liver-secreted MT1DP was found to be packaged into extracellular cargoes: exosomes, by which MT1DP was delivered into circulation and thereafter targeted kidney cells. Furthermore, exosome-laden MT1DP worsened Cd-induced nephrotoxicity, as evidenced in both Cd-poisoned individuals and in vitro cells. Moreover, MT1DP was found to reinforce Cd-induced toxicity in kidney cells by indirectly breaking the equilibrium between the pro-apoptotic and anti-apoptotic effects conducted by BAX and Bcl-xL, respectively. Collectively, our data unveiled that hepatocyte-derived MT1DP depends on the delivery of exosomes to wreak considerable havoc in Cd nephrotoxicity. This study offers new insights into the molecular mechanisms of Cd-induced kidney injury.
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Affiliation(s)
- Ming Gao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zheng Dong
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jinfang Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Wei Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ming Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Changying Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Pan Zhu
- Guangdong Provincial Center of Disease Control and Prevention, Qujiang City Guangzhou, 511430, Southern China
| | - Xingfeng Yang
- Guangdong Provincial Center of Disease Control and Prevention, Qujiang City Guangzhou, 511430, Southern China; Food Safety and Health Research Center, School of Public Health, Southern Medical University, Guangzhou, 100022, China
| | - Xiaohong Shang
- NHC Key Laboratory for Food Safety Risk Assessment, Food Safety Research Unit (2019RU014) of Chinese Academy of Medical Science, China National Centre for Food Safety Risk Assessment, Beijing, 100022, China
| | - Yongning Wu
- Food Safety and Health Research Center, School of Public Health, Southern Medical University, Guangzhou, 100022, China; NHC Key Laboratory for Food Safety Risk Assessment, Food Safety Research Unit (2019RU014) of Chinese Academy of Medical Science, China National Centre for Food Safety Risk Assessment, Beijing, 100022, China.
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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Xu J, Gong Y, Sun Y, Cai J, Liu Q, Bao J, Yang J, Zhang Z. Impact of Selenium Deficiency on Inflammation, Oxidative Stress, and Phagocytosis in Mouse Macrophages. Biol Trace Elem Res 2020; 194:237-243. [PMID: 31218646 DOI: 10.1007/s12011-019-01775-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 06/05/2019] [Indexed: 12/20/2022]
Abstract
Although it has been reported that selenium (Se) deficiency can trigger inflammation, however, there are few reports on the effect of Se on the function of mouse peritoneal macrophages. Herein, we examined the expression of inflammatory factors, oxidative stress levels, and phagocytosis for primary-cultured peritoneal macrophages using control and Se-deficient groups. Our results revealed that Se deficiency induced the accumulation of oxygen free radicals and weakened antioxidant capacity. Se deficiency also significantly increased the expression of inflammation factors including iNOS, IL-1β, IL-12, IL-10, PTGe, and NF-κB. Meanwhile, Se suppression restrained macrophage production of TNF-α. The results of the phagocytosis assay demonstrated that Se deficiency inhibited the phagocytosis of macrophages. In conclusion, Se-deficient macrophages undergo severe inflammation through the NF-κB pathway due to the accumulation of oxygen free radicals and are hindered in their phagocytic capacity.
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Affiliation(s)
- Jianwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Yafan Gong
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Yue Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jingzeng Cai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Qi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jun Bao
- College of Animal Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jie Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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Xin C, Guangliang S, Qing Z, Qingqing L, Hang Y, Yiming Z, Shu L. Astilbin protects chicken peripheral blood lymphocytes from cadmium-induced necroptosis via oxidative stress and the PI3K/Akt pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 190:110064. [PMID: 31838230 DOI: 10.1016/j.ecoenv.2019.110064] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 11/17/2019] [Accepted: 12/06/2019] [Indexed: 06/10/2023]
Abstract
Astilbin (ASB), a dihydroflavonol glycoside, is widely found in a variety of plants and in functional foods and acts as a powerful antioxidant. The aim of this study was to investigate the underlying mechanisms involved in the antagonistic effects of ASB on cadmium (Cd)-induced necroptosis in chicken peripheral blood lymphocytes. Peripheral blood lymphocytes were aseptically collected from Roman white hens and then randomly divided into five groups: the control group was incubated without additional reagents, while the other groups were incubated with Cd, ASB, a combination of Cd and ASB, and 0.1% DMSO. After a 24 h treatment, cell samples were collected. The results showed that some morphological changes consistent with necroptosis were observed in the Cd-treated groups, suggesting the occurrence of necroptosis. Simultaneously, antioxidant activity markers (CAT, SOD, GSH, GSH-px, and T-AOC) decreased and indicators of oxidative stress (MDA, iNOS, NO, H2O2, ·OH and ROS) increased. The production of ROS induced the activation of the PI3K/Akt signaling pathway, as the expression levels of PI3K, Akt and PDK1 were significantly elevated. Additionally, the expression levels of RIPK3, RIPK1, MLKL, TAK1, TAB2 and TAB3 were increased and that of Caspase-8 was decreased, which could cause the necroptosis. However, the most important our results was that ASB supplements remarkably attenuated the Cd-induced effects. We conclude that the Cd treatment promoted an imbalance of the antioxidant status and activated the PI3K/Akt pathway, leading to necroptosis in chicken peripheral blood lymphocytes, and that ASB was able to partially ameliorate the effect of Cd-induced necroptosis.
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Affiliation(s)
- Chi Xin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Shi Guangliang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Zhang Qing
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Liu Qingqing
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Yin Hang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Zhang Yiming
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Li Shu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
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66
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Bhatia D, Choi ME. Autophagy in kidney disease: Advances and therapeutic potential. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2020; 172:107-133. [PMID: 32620239 DOI: 10.1016/bs.pmbts.2020.01.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Autophagy is a highly conserved intracellular catabolic process for the degradation of cytoplasmic components that has recently gained increasing attention for its importance in kidney diseases. It is indispensable for the maintenance of kidney homeostasis both in physiological and pathological conditions. Investigations utilizing various kidney cell-specific conditional autophagy-related gene knockouts have facilitated the advancement in understanding of the role of autophagy in the kidney. Recent findings are raising the possibility that defective autophagy exerts a critical role in different pathological conditions of the kidney. An emerging body of evidence reveals that autophagy exhibits cytoprotective functions in both glomerular and tubular compartments of the kidney, suggesting the upregulation of autophagy as an attractive therapeutic strategy. However, there is also accumulating evidence that autophagy could be deleterious, which presents a formidable challenge in developing therapeutic strategies targeting autophagy. Here, we review the recent advances in research on the role of autophagy during different pathological conditions, including acute kidney injury (AKI), focusing on sepsis, ischemia-reperfusion injury, cisplatin, and heavy metal-induced AKI. We also discuss the role of autophagy in chronic kidney disease (CKD) focusing on the pathogenesis of tubulointerstitial fibrosis, podocytopathies including focal segmental glomerulosclerosis, diabetic nephropathy, IgA nephropathy, membranous nephropathy, HIV-associated nephropathy, and polycystic kidney disease.
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Affiliation(s)
- Divya Bhatia
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, NewYork-Presbyterian Hospital, Weill Cornell Medicine, New York, NY, United States
| | - Mary E Choi
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, NewYork-Presbyterian Hospital, Weill Cornell Medicine, New York, NY, United States.
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67
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El-Boshy M, Refaat B, Almaimani RA, Abdelghany AH, Ahmad J, Idris S, Almasmoum H, Mahbub AA, Ghaith MM, BaSalamah MA. Vitamin D 3 and calcium cosupplementation alleviates cadmium hepatotoxicity in the rat: Enhanced antioxidative and anti-inflammatory actions by remodeling cellular calcium pathways. J Biochem Mol Toxicol 2020; 34:e22440. [PMID: 31926057 DOI: 10.1002/jbt.22440] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 12/10/2019] [Accepted: 12/17/2019] [Indexed: 12/13/2022]
Abstract
Although vitamin D (VD) and calcium (Ca) attenuate cadmium (Cd) metabolism, their combined antioxidant and anti-inflammatory actions against Cd toxicity have not been previously explored. Hence, this study measured the protective effects of VD ± Ca supplements against Cd hepatotoxicity. Forty adult male rats were distributed to: negative controls (NCs), positive controls (PCs), VD, Ca, and VD3 and Ca (VDC) groups. All groups, except NC, received CdCl2 in drinking water (44 mg/L) for 4 weeks individually or concurrently with intramuscular VD3 (600 IU/kg; three times per week) and/or oral Ca (100 mg/kg; five times per week). The PC group showed abnormal hepatic biochemical parameters and increase in cellular cytochrome C, caspase-9, and caspase-3 alongside the apoptotic/necrotic cell numbers by terminal deoxynucleotidyl transferase dUTP nick end labeling technique. The PC hepatic tissue also had substantially elevated pro-oxidants (malondialdehyde [MDA]/H2 O2 /protein carbonyls) and inflammatory cytokines (interleukin 1β [IL-1β]/IL-6/IL17A/tumor necrosis factor-α), whereas the anti-inflammatory (IL-10/IL-22) and antioxidants (glutathione [GSH]/GPx/catalase enzyme [CAT]) markers declined. Hypovitaminosis D, low hepatic tissue Ca, aberrant hepatic expression of VD-metabolizing enzymes (Cyp2R1/Cyp27a1/cyp24a1), receptor and binding protein alongside Ca-membrane (CaV 1.1/CaV 3.1), and store-operated (RyR1/ITPR1) channels, and Ca-binding proteins (CAM/CAMKIIA/S100A1/S100B) were observed in the PC group. Both monotherapies decreased serum, but not tissue Cd levels, restored the targeted hepatic VD/Ca molecules' expression. However, these effects were more prominent in the VD group than the Ca group. The VDC group, contrariwise, disclosed the greatest alleviations on serum and tissue Cd, inflammatory and oxidative markers, the VD/Ca molecules and tissue integrity. In conclusion, this report is the first to reveal boosted protection for cosupplementing VD and Ca against Cd hepatotoxicity that could be due to enhanced antioxidative, anti-inflammatory, and modulation of the Ca pathways.
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Affiliation(s)
- Mohamed El-Boshy
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia.,Faculty of Veterinary Medicine, Department of Clinical Pathology, Mansoura University, Mansoura, Egypt
| | - Bassem Refaat
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Riyad A Almaimani
- Faculty of Medicine, Department of Biochemistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Abdelghany H Abdelghany
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia.,Faculty of Medicine, Department of Anatomy, Alexandria University, Alexandria, Egypt
| | - Jawwad Ahmad
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Shakir Idris
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Hussain Almasmoum
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Amani A Mahbub
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Mazen M Ghaith
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Mohammad A BaSalamah
- Faculty of Medicine, Department of Pathology, Umm Al-Qura University, Makkah, Saudi Arabia
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68
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Kaushal GP, Chandrashekar K, Juncos LA, Shah SV. Autophagy Function and Regulation in Kidney Disease. Biomolecules 2020; 10:E100. [PMID: 31936109 PMCID: PMC7022273 DOI: 10.3390/biom10010100] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/16/2019] [Accepted: 12/19/2019] [Indexed: 02/06/2023] Open
Abstract
Autophagy is a dynamic process by which intracellular damaged macromolecules and organelles are degraded and recycled for the synthesis of new cellular components. Basal autophagy in the kidney acts as a quality control system and is vital for cellular metabolic and organelle homeostasis. Under pathological conditions, autophagy facilitates cellular adaptation; however, activation of autophagy in response to renal injury may be insufficient to provide protection, especially under dysregulated conditions. Kidney-specific deletion of Atg genes in mice has consistently demonstrated worsened acute kidney injury (AKI) outcomes supporting the notion of a pro-survival role of autophagy. Recent studies have also begun to unfold the role of autophagy in progressive renal disease and subsequent fibrosis. Autophagy also influences tubular cell death in renal injury. In this review, we reported the current understanding of autophagy regulation and its role in the pathogenesis of renal injury. In particular, the classic mammalian target of rapamycin (mTOR)-dependent signaling pathway and other mTOR-independent alternative signaling pathways of autophagy regulation were described. Finally, we summarized the impact of autophagy activation on different forms of cell death, including apoptosis and regulated necrosis, associated with the pathophysiology of renal injury. Understanding the regulatory mechanisms of autophagy would identify important targets for therapeutic approaches.
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Affiliation(s)
- Gur P. Kaushal
- Renal Section, Central Arkansas Veterans Healthcare System Little Rock, Arkansas and Division of Nephrology, 4300 W 7th St, Little Rock, AR 72205, USA; (L.A.J.); (S.V.S.)
- Department of Internal Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham, Little Rock, AR 72205, USA;
| | - Kiran Chandrashekar
- Department of Internal Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham, Little Rock, AR 72205, USA;
| | - Luis A. Juncos
- Renal Section, Central Arkansas Veterans Healthcare System Little Rock, Arkansas and Division of Nephrology, 4300 W 7th St, Little Rock, AR 72205, USA; (L.A.J.); (S.V.S.)
- Department of Internal Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham, Little Rock, AR 72205, USA;
| | - Sudhir V. Shah
- Renal Section, Central Arkansas Veterans Healthcare System Little Rock, Arkansas and Division of Nephrology, 4300 W 7th St, Little Rock, AR 72205, USA; (L.A.J.); (S.V.S.)
- Department of Internal Medicine, University of Arkansas for Medical Sciences, 4301 W. Markham, Little Rock, AR 72205, USA;
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69
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N Rosalez M, Estevez-Fregoso E, Alatorre A, Abad-García A, A Soriano-Ursúa M. 2-Aminoethyldiphenyl Borinate: A Multitarget Compound with Potential as a Drug Precursor. Curr Mol Pharmacol 2020; 13:57-75. [PMID: 31654521 DOI: 10.2174/1874467212666191025145429] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/30/2019] [Accepted: 10/03/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Boron is considered a trace element that induces various effects in systems of the human body. However, each boron-containing compound exerts different effects. OBJECTIVE To review the effects of 2-Aminoethyldiphenyl borinate (2-APB), an organoboron compound, on the human body, but also, its effects in animal models of human disease. METHODS In this review, the information to showcase the expansion of these reported effects through interactions with several ion channels and other receptors has been reported. These effects are relevant in the biomedical and chemical fields due to the application of the reported data in developing therapeutic tools to modulate the functions of the immune, cardiovascular, gastrointestinal and nervous systems. RESULTS Accordingly, 2-APB acts as a modulator of adaptive and innate immunity, including the production of cytokines and the migration of leukocytes. Additionally, reports show that 2-APB exerts effects on neurons, smooth muscle cells and cardiomyocytes, and it provides a cytoprotective effect by the modulation and attenuation of reactive oxygen species. CONCLUSION The molecular pharmacology of 2-APB supports both its potential to act as a drug and the desirable inclusion of its moieties in new drug development. Research evaluating its efficacy in treating pain and specific maladies, such as immune, cardiovascular, gastrointestinal and neurodegenerative disorders, is scarce but interesting.
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Affiliation(s)
- Melvin N Rosalez
- Department of Physiology, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis and Diaz Miron S/N, Mexico City, 11340, Mexico
| | - Elizabeth Estevez-Fregoso
- Department of Physiology, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis and Diaz Miron S/N, Mexico City, 11340, Mexico
| | - Alberto Alatorre
- Department of Physiology, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis and Diaz Miron S/N, Mexico City, 11340, Mexico
| | - Antonio Abad-García
- Department of Physiology, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis and Diaz Miron S/N, Mexico City, 11340, Mexico
| | - Marvin A Soriano-Ursúa
- Department of Physiology, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis and Diaz Miron S/N, Mexico City, 11340, Mexico
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70
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Qu KC, Li HQ, Tang KK, Wang ZY, Fan RF. Selenium Mitigates Cadmium-Induced Adverse Effects on Trace Elements and Amino Acids Profiles in Chicken Pectoral Muscles. Biol Trace Elem Res 2020; 193:234-240. [PMID: 30805876 DOI: 10.1007/s12011-019-01682-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 02/17/2019] [Indexed: 01/02/2023]
Abstract
Cadmium (Cd), as one of the most toxic heavy metals, has become a widespread environmental contaminant and threats the food quality and safety. The protective effect of selenium (Se) on Cd-induced tissue lesion and cytotoxicity in chicken has been extensively reported. The objective of this study was to investigate the antagonistic effect of Se on Cd-induced damage of chicken pectoral muscles via analyzing the trace elements and amino acids profiles. Firstly, 19 trace elements contents were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The results showed that under Cd exposure, the contents of Cd, lead (Pb), mercury (Hg), aluminum (Al), and lithium (Li) were significantly elevated, and the contents of Se, iron (Fe), and chromium (Cr) were significantly reduced. However, supplementing Se significantly reversed the effects induced by Cd. Secondly, the amino acids contents were detected by L-8900 automatic amino acid analyzer. The results showed that supplementing Se increased significantly Cd-induced decrease of valine (Val), leucine (Leu), arginine (Arg), and proline (Pro). Thirdly, the results of principal component analysis (PCA) showed that cobalt (Co), manganese (Mn), silicium (Si), and Pro may play special roles in response to the process of Se antagonizes Cd-induced damage of pectoral muscles in chickens. In summary, these results indicated that different trace elements and amino acids possessed and exhibited distinct responses to suffer from Se and/or Cd in chicken pectoral muscles. Notably, Se alleviated Cd-induced adverse effects by regulating trace elements and amino acids profiles in chicken pectoral muscles.
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Affiliation(s)
- Kui-Chao Qu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
| | - Hui-Qin Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Kou-Kou Tang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
| | - Zhen-Yong Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
| | - Rui-Feng Fan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
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71
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Kosiba AA, Wang Y, Chen D, Wong CKC, Gu J, Shi H. The roles of calcium-sensing receptor (CaSR) in heavy metals-induced nephrotoxicity. Life Sci 2019; 242:117183. [PMID: 31874167 DOI: 10.1016/j.lfs.2019.117183] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/15/2019] [Accepted: 12/16/2019] [Indexed: 02/06/2023]
Abstract
The kidney is a vital organ responsible for regulating water, electrolyte and acid-base balance as well as eliminating toxic substances from the blood in the body. Exposure of humans to heavy metals in their natural and occupational environments, foods, water, and drugs has serious implications on the kidney's health. The accumulation of heavy metals in the kidney has been linked to acute or chronic renal injury, kidney stones or even renal cancer, at the expense of expensive treatment options. Therefore, unearthing novel biomarkers and potential therapeutic agents or targets against kidney injury for efficient treatment are imperative. The calcium-sensing receptor (CaSR), a G-protein-coupled receptor (GPCR) is typically expressed in the parathyroid glands and renal tubules. It modulates parathyroid hormone secretion according to the serum calcium (Ca2+) concentration. In the kidney, it modulates electrolyte and water excretion by regulating the function of diverse tubular segments. Notably, CaSR lowers passive and active Ca2+ reabsorption in distal tubules, which facilitates phosphate reabsorption in proximal tubules and stimulates proton and water excretion in collecting ducts. Moreover, at the cellular level, modulation of the CaSR regulates cytosolic Ca2+ levels, reactive oxygen species (ROS) generation and the mitogen-activated protein kinase (MAPK) signaling cascades as well as autophagy and the suppression of apoptosis, an effect predominantly triggered by heavy metals. In this regard, we present a review on the CaSR at the cellular level and its potential as a therapeutic target for the development of new and efficient drugs against heavy metals-induced nephrotoxicity.
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Affiliation(s)
- Anthony A Kosiba
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yanwei Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Dongfeng Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Chris Kong Chu Wong
- Department of Biology, Hong Kong Baptist University, Hong Kong Special Administrative Region
| | - Jie Gu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Haifeng Shi
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
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Zou H, Wang T, Yuan J, Sun J, Yuan Y, Gu J, Liu X, Bian J, Liu Z. Cadmium-induced cytotoxicity in mouse liver cells is associated with the disruption of autophagic flux via inhibiting the fusion of autophagosomes and lysosomes. Toxicol Lett 2019; 321:32-43. [PMID: 31862506 DOI: 10.1016/j.toxlet.2019.12.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 11/27/2019] [Accepted: 12/16/2019] [Indexed: 12/25/2022]
Abstract
Cadmium (Cd) is an important environmental pollutant. Previous studies have shown that Cd can induce liver cell injury; however, the toxicity mechanisms of Cd have not been fully elucidated. This study aimed to further confirm the hepatotoxic effects of Cd in mouse liver cells by various methods both in vivo and in vitro. In addition, it found that Cd induced autophagy but also caused autophagy blockade, and autophagy blockade intensified Cd-induced injury in liver cells. Subsequently, the study investigated the effects of Cd on lysosomes and found that Cd induced lysosomal acidification, promoted the expression of lysosomal-associated membrane protein 2 and lysosomal hydrolase cathepsin B both in vivo and in vitro, and enhanced the lysosomal degradation capacity. It indicated that Cd triggered lysosomal activation. However, the fusion of autophagosomes with lysosomes was inhibited by Cd both in vivo and in vitro. Next, the expression of Rab7, a key protein that regulates autophagosome-lysosome fusion, was examined. Cd was found to inhibit Rab7 expression both in vivo and in vitro. In conclusion, the results indicated that Cd obstructed the autophagic flux by inhibiting the fusion of autophagosomes with lysosomes, thus exacerbating the Cd-induced hepatotoxicity. Moreover, the molecular mechanism of Cd-induced inhibition of autophagosome-lysosome fusion is probably related to the Cd-induced downregulation of Rab7.
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Affiliation(s)
- Hui Zou
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Tao Wang
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Junzhao Yuan
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Jian Sun
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Xuezhong Liu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, 225009, PR China.
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Deregulation of autophagy is involved in nephrotoxicity of arsenite and fluoride exposure during gestation to puberty in rat offspring. Arch Toxicol 2019; 94:749-760. [PMID: 31844926 DOI: 10.1007/s00204-019-02651-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 12/12/2019] [Indexed: 01/06/2023]
Abstract
Exposure to fluoride (F) or arsenite (As) through contaminated drinking water has been associated with chronic nephrotoxicity in humans. Autophagy is a regulated mechanism ubiquitous for the body in a toxic environment with F and As, but the underlying mechanisms of autophagy in the single or combined nephrotoxicity of F and As are unclear. In the present study, we established a rat model of prenatal and postnatal exposure to F and As with the aim of investigating the mechanism underlying nephrotoxicity of these pollutants in offspring. Rats were randomly divided into four groups that received NaF (100 mg/L), NaAsO2 (50 mg/L), or NaF (100 mg/L) with NaAsO2 (50 mg/L) in drinking water or clean water during pregnancy and lactation; after weaning, pups were exposed to the same treatment as their mothers until puberty. The results revealed that F and As exposure (alone or combined) led to significant increases of arsenic and fluoride levels in blood and bone, respectively. In this context, F and/or As disrupted histopathology and ultrastructure in the kidney, and also altered creatinine (CRE), urea nitrogen (BUN) and uric acid (UA) levels. Intriguingly, F and/or As uptake induced the formation of autophagosomes in kidney tissue and resulted in the upregulation of genes encoding autophagy-related proteins. Collectively, these results suggest that nephrotoxicity of F and As for offspring exposed to the pollutants from in utero to puberty is associated with deregulation of autophagy and there is an antagonism between F and As in the toxicity autophagy process.
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74
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Ge J, Zhang C, Sun YC, Zhang Q, Lv MW, Guo K, Li JL. Cadmium exposure triggers mitochondrial dysfunction and oxidative stress in chicken (Gallus gallus) kidney via mitochondrial UPR inhibition and Nrf2-mediated antioxidant defense activation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 689:1160-1171. [PMID: 31466156 DOI: 10.1016/j.scitotenv.2019.06.405] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 06/09/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Cadmium (Cd) is a widespread environmental pollutant that accumulates in living systems and represents a significant global health hazard. Cd poses a toxicity threat to both human and animal health, including that of birds. Further knowledge of Cd toxicology pathways will allow for a better understanding of Cd-induced nephrotoxicity. To evaluate Cd-induced nephrotoxicity through potential oxidative damage, male chickens were treated with 0 mg/kg, 35 mg/kg or 70 mg/kg CdCl2 in diet for 90 days. Markedly, histopathology indicated renal tubular epithelial cell swelling, renal function CREA content abnormalities, biochemical and morphologic indices indicative of Cd-induced kidney injury. Cd toxicity induced the up-regulation of Nrf2 and downstream target genes that relieve oxidative stress. Meanwhile, Cd disrupted the homeostasis of trace elements and promoted oxidative damage. Cd interfered with mitochondrial unfolded protein response (UPRmt)-related factors (SIRT1, SIRT3, PGC-1α, TFAM, Nrf1, and HTRA2) and disrupted the homeostasis of mitochondrial dynamics (OPA1, MFN1, MFN2, Fis1 and MFF), thereby exacerbating mitochondrial structural damage and mitochondrial dysfunction. In conclusion, our study demonstrated that the nephrotoxicity of Cd exposure results in oxidative stress and mitochondrial dysfunction by activating the Nrf2 signaling pathway and inhibiting UPRmt in the kidneys.
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Affiliation(s)
- Jing Ge
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Cong Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yan-Chun Sun
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, PR China
| | - Qi Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Mei-Wei Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Kai Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, PR China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, PR China.
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75
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Qu KC, Wang ZY, Tang KK, Zhu YS, Fan RF. Trehalose suppresses cadmium-activated Nrf2 signaling pathway to protect against spleen injury. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 181:224-230. [PMID: 31195231 DOI: 10.1016/j.ecoenv.2019.06.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 05/31/2019] [Accepted: 06/02/2019] [Indexed: 06/09/2023]
Abstract
Cadmium (Cd), as a kind of ubiquitous and highly toxic heavy metal pollutants, has been known to result in immunotoxicity in animals. As a multifunctional bioactivity disaccharide, trehalose (Tre) is characterized by antioxidative, antiapoptotic, and accelerating autophagy. In this study, Sprague-Dawley (SD) rats were fed with cadmium chloride (CdCl2) and/or Tre to explore the molecular mechanisms of Tre-protected against spleen injury caused by Cd exposure. Firstly, the results showed that Tre partially recovered splenic pathological changes induced by Cd exposure. Secondly, Tre dramatically declined the level of methane dicarboxylic aldehyde (MDA) and elevated the level of total antioxidant capacity (T-AOC) to weaken oxidative stress caused by Cd exposure in spleen tissue. Moreover, the results showed that Tre significantly suppressed Cd-induced the nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2) and up-regulated the protein expression of nuclear Nrf2. Thirdly, Tre remarkably reduced the protein expression of sequestosome 1 (p62/SQSTM1) and microtubule-associated protein light chain 3II (LC-3II) to restore autophagy inhibition induced by Cd exposure. Finally, the results of TUNEL and the expression of apoptosis marker proteins showed that Tre significantly inhibited Cd-induced apoptosis in spleen tissue to exert its protective effects. In summary, the results indicated that Tre modulated Nrf2 signaling pathway, which interacted with apoptosis and autophagy to against Cd-induced spleen injury, providing potential therapeutic strategies for the prevention and treatment of Cd-related immune system diseases.
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Affiliation(s)
- Kui-Chao Qu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China
| | - Zhen-Yong Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China
| | - Kou-Kou Tang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China
| | - Yi-Song Zhu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China
| | - Rui-Feng Fan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province, 271018, China.
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76
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Fei D, Zhao H, Wang Y, Liu J, Mu M, Guo M, Yang X, Xing M. The disturbance of autophagy and apoptosis in the gizzard caused by copper and/or arsenic are related to mitochondrial kinetics. CHEMOSPHERE 2019; 231:1-9. [PMID: 31128342 DOI: 10.1016/j.chemosphere.2019.05.101] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/09/2019] [Accepted: 05/13/2019] [Indexed: 06/09/2023]
Abstract
As toxic elements when excessive, arsenic (As) and copper (Cu) are two naturally occurring elements that may be ingested by the organism at the same time. However, the precise damaged mechanism and the pathways that are activated by As and/or Cu is rarely researched in gizzard, a unique organ of birds. In this study, ultrastructural observations, TdT-mediated dUTP Nick-End Labeling, real-time quantitative PCR and Western blotting were performed to evaluate the toxic effects of chronic exposure to Cu2+ and/or arsenite on chicken gizzard. The results revealed that increased apoptosis and autophagy levels induced by Cu2+ and arsenite appeared to be independent of oxidative stress, which didn't have significant changes in different treatment groups at the same time point. Nevertheless, the redox balance gradually deviated with the extension of time. And increased mitochondrial division and decreased fusion were also caused by Cu2+ and arsenite. In conclusion, apoptosis and autophagy in gizzard induced by Cu2+ and/or arsenite, at least, strongly linked with the disruption of mitochondrial homeostasis. Our study showed that the combination of Cu2+ and arsenite produces stronger toxicity. The results of this study can serve as a reference for agicultural feeding and environmental protection, that is, to avoid the combined exposure of Cu2+ and arsenite to prevent greater economic losses and health risks.
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Affiliation(s)
- Dongxue Fei
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China
| | - Hongjing Zhao
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China
| | - Yu Wang
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China
| | - Juanjuan Liu
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China
| | - Mengyao Mu
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China
| | - Menghao Guo
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China
| | - Xin Yang
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China
| | - Mingwei Xing
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang, PR China.
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Yang J, Gong Y, Liu Q, Cai J, Zhang B, Zhang Z. Thioredoxin silencing-induced cardiac supercontraction occurs through endoplasmic reticulum stress and calcium overload in chicken. Metallomics 2019; 10:1667-1677. [PMID: 30334551 DOI: 10.1039/c8mt00206a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The thioredoxin (Txn) system is the most crucial antioxidant defense mechanism in the myocardium, and hampering the Txn system may compromise cell survival. Calcium (Ca) imbalance is associated with a variety of cardiomyopathies, and dysregulation of Ca2+ homeostasis is often considered a critical starting point for heart disease. However, the roles of Txn and the Txn system in maintaining Ca2+ homeostasis in cardiomyocytes have been infrequently reported. Here, we examined the expression of genes associated with Ca2+ channels using a model of Txn suppression in cardiomyocyte cultures (siRNA and Txn inhibitor) and report that Txn knockdown can cause Ca2+ overload in the myocardial cytoplasm and release of endoplasmic reticulum (ER) Ca2+, which induces ER stress. Our results showed that Txn knockdown could lead to cytosolic Ca2+ overload through upregulated gene expression of Ca2+ channel-related genes in the cytoplasmic and ER membranes. Furthermore, we find that excessive Ca2+ concentrations in the cytoplasm may increase myocardial contraction, and heat shock proteins may play a protective role throughout the process. Our present study reveals a novel model of regulation for low Txn expression in myocardial injury.
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Affiliation(s)
- Jie Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China.
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78
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Tang KK, Li HQ, Qu KC, Fan RF. Selenium alleviates cadmium-induced inflammation and meat quality degradation via antioxidant and anti-inflammation in chicken breast muscles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:23453-23459. [PMID: 31201704 DOI: 10.1007/s11356-019-05675-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
Cadmium (Cd) as a widespread toxic heavy metal accumulates in animal food including chicken meat through food chain enrichment and finally threatens human health. Selenium (Se) is an essential mineral and possesses antagonistic effects on Cd-induced multiple organs' toxicity in chickens. The objective of the present study was to reveal the antagonistic mechanisms of Se to Cd from the aspects of oxidative stress, inflammation, and meat quality in chicken breast muscles. Firstly, the results showed that Cd significantly elevated the levels of malondialdehyde (MDA), hydrogen peroxide (H2O2), and protein carbonyl, and declined the levels of glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and catalase (CAT) to trigger oxidative stress in chicken breast muscles. However, Se treatment significantly alleviated Cd-induced oxidative stress by increasing the levels of GSH-Px, SOD, and CAT, and decreasing the levels of MDA, H2O2, and protein carbonyl. Secondly, Se obviously inhibited the expressions of Cd-activated inflammation-related genes including tumor necrosis factor (TNF-α), nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), inducible nitric oxide synthase (iNOS), prostaglandin-endoperoxide synthase 2 (COX-2), and prostaglandin E synthase (PTGEs) in chicken breast muscles. Thirdly, meat quality-related parameters including pH45min, ultimate pH (pHu), and drip loss were also detected, and the results showed that Se markedly recovered Cd-induced dropt of pH45min and increase of drip loss in chicken breast muscles. In brief, these findings demonstrated that Se significantly alleviated Cd-induced oxidative stress and inflammation, and declined meat quality of chicken breast muscles.
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Affiliation(s)
- Kou-Kou Tang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
| | - Hui-Qin Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Kui-Chao Qu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China
| | - Rui-Feng Fan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, 271018, Shandong Province, China.
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Role of Autophagy on Heavy Metal-Induced Renal Damage and the Protective Effects of Curcumin in Autophagy and Kidney Preservation. ACTA ACUST UNITED AC 2019; 55:medicina55070360. [PMID: 31295875 PMCID: PMC6681384 DOI: 10.3390/medicina55070360] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/28/2019] [Accepted: 07/08/2019] [Indexed: 12/16/2022]
Abstract
Curcumin is a hydrophobic polyphenol compound extracted from the rhizome of turmeric. The protective effect of curcumin on kidney damage in multiple experimental models has been widely described. Its protective effect is mainly associated with its antioxidant and anti-inflammatory properties, as well as with mitochondrial function maintenance. On the other hand, occupational or environmental exposure to heavy metals is a serious public health problem. For a long time, heavy metals-induced nephrotoxicity was mainly associated with reactive oxygen species overproduction and loss of endogenous antioxidant activity. However, recent studies have shown that in addition to oxidative stress, heavy metals also suppress the autophagy flux, enhancing cell damage. Thus, natural compounds with the ability to modulate and restore autophagy flux represent a promising new therapeutic strategy. Furthermore, it has been reported in other renal damage models that curcumin’s nephroprotective effects are related to its ability to regulate autophagic flow. The data indicate that curcumin modulates autophagy by classic signaling pathways (suppression of protein kinase B (Akt)/mammalian target of rapamycin (mTOR) and/or by stimulation of adenosine monophosphate-activated protein kinase (AMPK) and extracellular signal-dependent kinase (ERK) pathways). Moreover, it allows lysosomal function preservation, which is crucial for the later stage of autophagy. However, future studies of autophagy modulation by curcumin in heavy metals-induced autophagy flux impairment are still needed.
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80
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Zhu JQ, Liu Y, Zhang JH, Liu YF, Cao JQ, Huang ZT, Yuan Y, Bian JC, Liu ZP. Cadmium Exposure of Female Mice Impairs the Meiotic Maturation of Oocytes and Subsequent Embryonic Development. Toxicol Sci 2019; 164:289-299. [PMID: 29684212 DOI: 10.1093/toxsci/kfy089] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Cadmium is one major pollutant that is highly toxic to animals and humans. The mechanism of cadmium toxicity on the female reproductive system, particularly oocyte maturation and fertility, remains to be clarified. In this study, we used a mouse model to investigate the effects of cadmium in the drinking water on the meiotic maturation of oocytes and subsequent embryonic development, and the underlying mechanisms associated with the impairment of oocyte maturation such as mitochondrial distribution and histone modifications. Our results show that cadmium exposure decreased the number of ovulated oocytes and impaired oocyte meiotic maturation rate both in vivo and in vitro. The embryonic development after fertilization was also impaired even when the potential hazards of cadmium on the spermatozoa or the genital tract have been excluded by fertilization and embryonic development in culture. Cadmium exposure disrupted meiotic spindle morphology and actin filament, which are responsible for successful chromosome segregation and the polar body extrusion during oocyte maturation and fertilization. ATP contents, which are required for proper meiotic spindle assembly in the oocyte, were decreased, consistent with altered mitochondrial distribution after cadmium exposure. Finally, cadmium exposure affected the levels of H3K9me2 and H4K12ac in the oocyte, which are closely associated with the acquisition of oocyte developmental competence and subsequent embryonic development. In conclusion, cadmium exposure in female mice impaired meiotic maturation of oocytes and subsequent embryonic development by affecting the cytoskeletal organization, mitochondrial function, and histone modifications.
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Affiliation(s)
- Jia-Qiao Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, People's Republic of China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Yang Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Jiang-Hong Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Yan-Fang Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Jiang-Qin Cao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Zhu-Tao Huang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Yan Yuan
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, People's Republic of China
| | - Jian-Chun Bian
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Zong-Ping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, People's Republic of China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
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81
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Lin T, Ruan S, Huang D, Meng X, Li W, Wang B, Zou F. MeHg-induced autophagy via JNK/Vps34 complex pathway promotes autophagosome accumulation and neuronal cell death. Cell Death Dis 2019; 10:399. [PMID: 31113939 PMCID: PMC6529499 DOI: 10.1038/s41419-019-1632-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/21/2019] [Accepted: 05/06/2019] [Indexed: 12/20/2022]
Abstract
Methylmercury (MeHg), an environmental toxin, may specifically cause neurological disorders. Recent studies have reported that autophagy can be induced by metals and be involved in metal cytotoxicity. However, the role of autophagy in MeHg-induced neurotoxicity remains unknown. Here, we demonstrate that MeHg induces mTOR-independent autophagy through JNK/Vps34 complex pathway, which further promotes autophagosome accumulation and neuronal cell death. In addition to cell death, MeHg increased LC3-II expression in a concentration- and time-dependent manner in neuronal cells; furthermore, western blot analysis of LC3-II expression under baf A1-treated condition indicates that MeHg activates autophagy induction. However, we found lysosomal degradative function was impaired by MeHg. Under this condition, MeHg-activated autophagy induction would elicit autophagosome accumulation and cell death. Consistent with this inference, the autophagy inhibitor decreased the MeHg-induced autophagosome accumulation and neuronal cells death, whereas the autophagy inducers further augmented MeHg cytotoxicity. Then, the mechanism of autophagy induction is investigated. We show that MeHg-induced autophagy is mTOR-independent. Vacuolar protein sorting 34 (Vps34) complex is critical for mTOR-independent autophagy. MeHg induced the interaction between Beclin1 and Vps34 to form Vps34 complex. Importantly, knockdown of Vps34 inhibited autophagy induction by MeHg. Furthermore, we found that JNK, but not p38 or ERK, promoted the formation of Vps34 complex and autophagy induction. Finally, inhibition of JNK or downregulation of Vps34 decreased autophagosome accumulation and alleviated MeHg-induced neuronal cell death. The present study implies that inhibiting JNK/Vps34 complex autophagy induction pathway may be a novel therapeutic approach for the treatment of MeHg-induced neurotoxicity.
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Affiliation(s)
- Tianji Lin
- Department of Occupational Health and Occupational Medicine, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Shijuan Ruan
- Department of Occupational Health and Occupational Medicine, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Dingbang Huang
- Department of Occupational Health and Occupational Medicine, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Xiaojing Meng
- Department of Occupational Health and Occupational Medicine, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Wenjun Li
- Department of Occupational Health and Occupational Medicine, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Bin Wang
- Department of Occupational Health and Occupational Medicine, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China.
| | - Fei Zou
- Department of Occupational Health and Occupational Medicine, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China.
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82
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Zhou XL, Wan XM, Fu XX, Xie CG. Puerarin prevents cadmium-induced hepatic cell damage by suppressing apoptosis and restoring autophagic flux. Biomed Pharmacother 2019; 115:108929. [PMID: 31060001 DOI: 10.1016/j.biopha.2019.108929] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/22/2019] [Accepted: 04/26/2019] [Indexed: 01/05/2023] Open
Abstract
Cadmium (Cd) is a common heavy metal contamination that is highly toxic to liver. Puerarin (PU), a potent free radical scavenger, has been shown to exert cytoprotective effect in numerous pathological processes. However, whether PU affords protection against Cd-induced hepatotoxicity remains unclear to be known. Here, we aimed to investigate the protective effect of PU on Cd-induced hepatotoxicity in an immortalized mouse hepatocyte line, AML-12. First, Cd-induced cytotoxicity in AML-12 cells was obviously ameliorated by PU treatment. Also, Cd-induced apoptotic cell death was markedly alleviated by PU treatment, evidenced by two methods. Simultaneously, Cd-elevated malondialdehyde and reactive oxygen species levels were significantly reduced by PU administration, demonstrating the antioxidant effect of PU against Cd exposure. Moreover, Cd-induced blockage of autophagic flux in AML-12 cells was obviously restored by PU treatment, evidenced by immunoblot analysis of autophagy marker proteins and tandem fluorescent-tagged LC3 method. Resultantly, Cd-induced autophagosome accumulation was significantly alleviated by PU treatment. In conclusion, these observations demonstrate that PU treatment alleviates Cd-induced hepatic cell damage by inhibiting apoptosis and restoring autophagy activity, which is intimately related with its antioxidant activity.
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Affiliation(s)
- Xue-Lei Zhou
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, 610072, Sichuan Province, PR China; Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611130, PR China
| | - Xue-Mei Wan
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, 610072, Sichuan Province, PR China; Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611130, PR China
| | - Xiao-Xu Fu
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, 610072, Sichuan Province, PR China; Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611130, PR China
| | - Chun-Guang Xie
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, 610072, Sichuan Province, PR China; Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611130, PR China.
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83
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Mahapatra KK, Panigrahi DP, Praharaj PP, Bhol CS, Patra S, Mishra SR, Behera BP, Bhutia SK. Molecular interplay of autophagy and endocytosis in human health and diseases. Biol Rev Camb Philos Soc 2019; 94:1576-1590. [PMID: 30989802 DOI: 10.1111/brv.12515] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 03/27/2019] [Accepted: 03/29/2019] [Indexed: 12/14/2022]
Abstract
Autophagy, an evolutionarily conserved process for maintaining the physio-metabolic equilibrium of cells, shares many common effector proteins with endocytosis. For example, tethering proteins involved in fusion like Ras-like GTPases (Rabs), soluble N-ethylmaleimide sensitive factor attachment protein receptors (SNAREs), lysosomal-associated membrane protein (LAMP), and endosomal sorting complex required for transport (ESCRT) have a dual role in endocytosis and autophagy, and the trafficking routes of these processes converge at lysosomes. These common effectors indicate an association between budding and fusion of membrane-bound vesicles that may have a substantial role in autophagic lysosome reformation, by sensing cellular stress levels. Therefore, autophagy-endocytosis crosstalk may be significant and implicates a novel endocytic regulatory pathway of autophagy. Moreover, endocytosis has a pivotal role in the intake of signalling molecules, which in turn activates cascades that can result in pathophysiological conditions. This review discusses the basic mechanisms of this crosstalk and its implications in order to identify potential novel therapeutic targets for various human diseases.
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Affiliation(s)
- Kewal K Mahapatra
- Department of Life Science, National Institute of Technology Rourkela, Sundergarh, Odisha 769008, India
| | - Debasna P Panigrahi
- Department of Life Science, National Institute of Technology Rourkela, Sundergarh, Odisha 769008, India
| | - Prakash P Praharaj
- Department of Life Science, National Institute of Technology Rourkela, Sundergarh, Odisha 769008, India
| | - Chandra S Bhol
- Department of Life Science, National Institute of Technology Rourkela, Sundergarh, Odisha 769008, India
| | - Srimanta Patra
- Department of Life Science, National Institute of Technology Rourkela, Sundergarh, Odisha 769008, India
| | - Soumya R Mishra
- Department of Life Science, National Institute of Technology Rourkela, Sundergarh, Odisha 769008, India
| | - Bishnu P Behera
- Department of Life Science, National Institute of Technology Rourkela, Sundergarh, Odisha 769008, India
| | - Sujit K Bhutia
- Department of Life Science, National Institute of Technology Rourkela, Sundergarh, Odisha 769008, India
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84
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Wang LY, Fan RF, Yang DB, Zhang D, Wang L. Puerarin reverses cadmium-induced lysosomal dysfunction in primary rat proximal tubular cells via inhibiting Nrf2 pathway. Biochem Pharmacol 2019; 162:132-141. [DOI: 10.1016/j.bcp.2018.10.016] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 10/16/2018] [Indexed: 12/31/2022]
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85
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Gong ZG, Wang XY, Wang JH, Fan RF, Wang L. Trehalose prevents cadmium-induced hepatotoxicity by blocking Nrf2 pathway, restoring autophagy and inhibiting apoptosis. J Inorg Biochem 2019; 192:62-71. [DOI: 10.1016/j.jinorgbio.2018.12.008] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/16/2018] [Accepted: 12/21/2018] [Indexed: 01/16/2023]
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86
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Cai J, Yang J, Liu Q, Gong Y, Zhang Y, Zheng Y, Yu D, Zhang Z. Mir-215-5p induces autophagy by targeting PI3K and activating ROS-mediated MAPK pathways in cardiomyocytes of chicken. J Inorg Biochem 2019; 193:60-69. [PMID: 30684759 DOI: 10.1016/j.jinorgbio.2019.01.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 01/07/2019] [Accepted: 01/13/2019] [Indexed: 02/01/2023]
Abstract
Our previous study revealed that selenium (Se) deficiency can cause myocardial injury through triggering autophagy. MicroRNAs (miRNAs) play crucial roles in autophagic cell death. However, the relationship between miRNAs and myocardial autophagy injury caused by Se deficiency remains unclear. We selected differential microRNA-215-5p (miR-215-5p) in Se-deficient myocardial tissue using high-throughput miRNA-sequencing. To further explore the role of miR-215-5p in myocardial injury, overexpression/knockdown of miR-215-5p in primary cardiomyocyte model was established by miRNAs interference technology. In this study, we report that miR-215-5p can promote myocardial autophagy by directly binding to the 3'untranslated region (3'UTR) of phosphatidylinositol-4, 5-bisphosphate 3-kinase (PI3K). Its target gene PI3K was confirmed by dual luciferase reporter assay, quantitative real-time polymerase chain reaction (qRT-PCR) and western blot in cardiomyocytes. Our results showed that overexpression of miR-215-5p could trigger myocardial autophagy through PI3K-threonine-protein kinase (AKT)-target of rapamycin (TOR) pathway. Further studies revealed that autophagic cell death was dependent on the activation of extracellular signal-regulated kinase1/2 (ERK1/2), c-Jun N-terminal kinase (JNK), p38 kinase (p38) and generation of reactive oxygen species (ROS) in overexpression of miR-215-5p in cardiomyocytes. On the contrary, miR-215-5p inhibitor can enhance cell survival capacity against autophagy by inhibiting ROS-mitogen-activated protein kinase (MAPK) pathways and activating the PI3K/AKT/TOR pathway in cardiomyocytes. Together, our findings support that miR-215-5p may modulate cell survival programs by regulating autophagy, and miR-215-5p acts as an autophagic regulator in the regulatory feedback loop that regulates cardiomyocyte survival by modulating the PI3K/AKT/TOR pathway and ROS-dependent MAPK pathways.
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Affiliation(s)
- Jingzeng Cai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jie Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Qi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yafan Gong
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yuan Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yingying Zheng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Dahai Yu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, PR China.
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87
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Orr SE, Barnes MC, Joshee L, Uchakina O, McKallip RJ, Bridges CC. Potential mechanisms of cellular injury following exposure to a physiologically relevant species of inorganic mercury. Toxicol Lett 2019; 304:13-20. [PMID: 30630035 DOI: 10.1016/j.toxlet.2019.01.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 12/19/2018] [Accepted: 01/07/2019] [Indexed: 01/06/2023]
Abstract
Mercury is a toxic metal that is found ubiquitously in the environment. Humans are exposed to different forms of mercury via ingestion, inhalation, and/or dermal absorption. Following exposure, mercuric ions may gain access to target cells and subsequently lead to cellular intoxication. The mechanisms by which mercury accumulation leads to cellular injury and death are not understood fully. Therefore, purpose of this study was to identify the specific intracellular mechanisms that are altered by exposure to inorganic mercury (Hg2+). Normal rat kidney (NRK) cells were exposed to a physiologically relevant form of Hg2+, as a conjugate of cysteine (10 μM or 50 μM). Alterations in oxidative stress were estimated by measuring lipid peroxidation and mitochondrial oxidative stress. Alterations in actin and tubulin were measured using specific fluorescent dyes. Calcium levels were measured using Fluo-3 AM Calcium Indicator while autophagy was identified with Premo™ Autophagy Sensor LC3B-GFP. The current findings show that exposure to Hg2+ leads to enhanced oxidative stress, alterations in cytoskeletal structure, increases in intracellular calcium, and enhanced autophagy. We have established a more complete understanding of intoxication and cellular injury induced by a relevant form of Hg2+ in proximal tubule cells.
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Affiliation(s)
- Sarah E Orr
- Department of Biomedical Sciences, Mercer University School of Medicine, Macon, GA, USA.
| | - Mary C Barnes
- Department of Biomedical Sciences, Mercer University School of Medicine, Macon, GA, USA.
| | - Lucy Joshee
- Department of Biomedical Sciences, Mercer University School of Medicine, Macon, GA, USA.
| | - Olga Uchakina
- Department of Biomedical Sciences, Mercer University School of Medicine, Macon, GA, USA.
| | - Robert J McKallip
- Department of Biomedical Sciences, Mercer University School of Medicine, Macon, GA, USA.
| | - Christy C Bridges
- Department of Biomedical Sciences, Mercer University School of Medicine, Macon, GA, USA.
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88
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Shi Q, Jin X, Fan R, Xing M, Guo J, Zhang Z, Zhang J, Xu S. Cadmium-mediated miR-30a-GRP78 leads to JNK-dependent autophagy in chicken kidney. CHEMOSPHERE 2019; 215:710-715. [PMID: 30352370 DOI: 10.1016/j.chemosphere.2018.10.019] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/22/2018] [Accepted: 10/04/2018] [Indexed: 06/08/2023]
Abstract
Cadmium-mediated microRNAs have become a heavily researched topic. Few studies mention the regulation of autophagy by cadmium through microRNAs, especially regarding poultry. The kidney is one of the organs most severely affected by cadmium, as it is involved in the accumulation of metal ions; causing such types of damage as apoptosis, necrosis and autophagy to the body. However, the relationship between miR-30a and GRP78 in the chicken kidney during ER stress and autophagy via JNK has not been thoroughly elucidated to date. In our research, we randomly assigned 128 Hy-Line Brown laying chickens to four groups with different diet treatments. The four groups consisted of the control group (0.2 mg Se kg-1), the Se group (2 mg kg-1 of Na2SeO3), the Se + Cd group (150 mg kg-1 of CdCl2 and 2 mg kg-1 of Na2SeO3) and the Cd group (150 mg kg-1 of CdCl2). On the 90th day, we detected the expression of miR-30a, GRP78, ER stress-related genes, IRE-1-JNK and autophagy-related genes. Compared with the control group, the mRNA levels of IRE-1-JNK, ER stress-related genes, autophagy-related genes and GRP78 were significantly increased (P < 0.05), while the expression of miR-30a was significantly decreased (p < 0.05) in the Cd group. However, those changes were clearly alleviated in the Se + Cd group (p < 0.05). In summary, we demonstrated that Cd triggered an miR-30a-GRP78 signaling axis disorder, increasing ER stress and activating the IRE-1-JNK pathway, thereby promoting autophagy in the chicken kidney. Moreover, Se could antagonize the negative impact of Cd.
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Affiliation(s)
- Qunxiang Shi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Xi Jin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Ruifeng Fan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Mengyuan Xing
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jinming Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Junmin Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China, Ministry of Agriculture, No. 2 Yuanmingyuan West Road Haidian District, Beijing 100193, PR China.
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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89
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Lee JY, Tokumoto M, Satoh M. Novel Mechanisms of Cadmium-Induced Toxicity in Renal Cells. CURRENT TOPICS IN ENVIRONMENTAL HEALTH AND PREVENTIVE MEDICINE 2019. [DOI: 10.1007/978-981-13-3630-0_12] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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90
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Mascarenhas S, Mutnuri S, Ganguly A. Silica - A trace geogenic element with emerging nephrotoxic potential. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:297-317. [PMID: 30029111 DOI: 10.1016/j.scitotenv.2018.07.075] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 06/14/2018] [Accepted: 07/06/2018] [Indexed: 06/08/2023]
Abstract
Silica is a trace-geogenic compound with limited-bioavailability. It inflicts health-perils like pulmonary-silicosis and chronic kidney disease (CKD), when available via anthropogenic-disturbances. Amidst silica-imposed pathologies, pulmonary toxicological-mechanisms are well-described, ignoring the renal-pathophysiological mechanisms. Hence, the present-study aimed to elucidate cellular-cum-molecular toxicological-mechanisms underlying silica-induced renal-pathology in-vitro. Various toxicity-assessments were used to study effects of silica on the physiological-functions of HK-cells (human-kidney proximal-tubular cells - the toxin's prime target) on chronic (1-7 days) sub-toxic (80 mg/L) and toxic (100-120 mg/L) dosing. Results depicted that silica triggered dose-cum-time dependent cytotoxicity/cell-death (MTT-assay) that significantly increased on long-term dosing with ≥100 mg/L silica; establishing the nephrotoxic-potential of this dose. Contrarily, insignificant cell-death on sub-toxic (80 mg/L) dosing was attributed to rapid intracellular toxin-clearance at lower-doses preventing toxic-effects. The proximal-tubular (HK-cells) cytotoxicity was found to be primarily mediated by silica-triggered incessant oxidative-stress (elevated ROS).·This enhanced ROS inflicted severe inflammation and subsequent fibrosis, evident from increased pro-inflammatory-cum-fibrogenic cytokines generation (IL-1β, IL-2, IL-6, TNF-α and TGF-β). Simultaneously, ROS induced persistent DNA-damage (Comet-assay) that stimulated G2/M arrest for p53-mediated damage-repair, aided by checkpoint-promoter (Chk1) activation and mitotic-inducers (i.e. Cdc-25, Cdk1, cyclinB1) inhibition. However, DNA-injuries surpassed the cellular-repair, which provoked the p53-gene to induce mitochondrial-mediated apoptotic cell-death via activation of Bax, cytochrome-c and caspase-cascade (9/3). This persistent apoptotic cell-death and simultaneous incessant inflammation culminated in the development of tubular-atrophy and fibrosis, the major pathological-manifestations of CKD. These findings provided novel-insights into the pathological-mechanisms (cellular and molecular) of silica-induced CKD, inflicted on chronic toxic-dosing (≥100 mg/L).Thereby, encouraging the development of therapeutic-strategies (e.g. anti-oxidant treatment) for specific molecular-targets (e.g. ROS) to retard silica-induced CKD-progression, for reduction in the global-CKD burden.
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Affiliation(s)
- Starlaine Mascarenhas
- Department of Biological Sciences, BITS Pilani, K K Birla Goa Campus, NH 17 B, Zuarinagar, Goa 403 726, India.
| | - Srikanth Mutnuri
- Department of Biological Sciences, BITS Pilani, K K Birla Goa Campus, NH 17 B, Zuarinagar, Goa 403 726, India.
| | - Anasuya Ganguly
- Department of Biological Sciences, BITS Pilani, K K Birla Goa Campus, NH 17 B, Zuarinagar, Goa 403 726, India.
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91
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Wang MG, Fan RF, Li WH, Zhang D, Yang DB, Wang ZY, Wang L. Activation of PERK-eIF2α-ATF4-CHOP axis triggered by excessive ER stress contributes to lead-induced nephrotoxicity. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1866:713-726. [PMID: 30528975 DOI: 10.1016/j.bbamcr.2018.12.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 11/07/2018] [Accepted: 12/01/2018] [Indexed: 12/11/2022]
Abstract
Lead (Pb) is a known nephrotoxicant that causes damage to proximal tubular cells. PERK pathway plays an important role in the pathogenesis of renal diseases, but its role in Pb-induced nephrotoxicity remains largely unknown. In this study, data showed that Pb could induce ER stress as shown by increased phosphorylation of PERK with subsequent activation of the eIF2α-ATF4-CHOP axis in primary rat proximal tubular (rPT) cells, indicating the activation of PERK-eIF2α-ATF4-CHOP pathway due to excessive ER stress. Pb-activated PERK pathway can be effectively inhibited by 4-phenylbutyric acid and PERK gene silencing, respectively; whereas continuously up-regulated by tunicamycin (TM) treatment. Moreover, Pb-induced apoptosis and inhibition of autophagic flux in rPT cells were significantly augmented and aggravated by co-treatment with TM, respectively. Pharmacological or genetic inhibition of the PERK pathway results in alleviation of apoptosis and restoration of autophagy inhibition in Pb-exposed rPT cells. Mechanistically, activation of PERK-eIF2α-ATF4-CHOP axis triggered by excessive ER stress in rPT cells leads to Pb-induced apoptosis and blockage of autophagic flux, resulting in nephrotoxicity.
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Affiliation(s)
- Min-Ge Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Rui-Feng Fan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Wen-Hui Li
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Dong Zhang
- Shandong Provincial Center for Animal Disease Control and Prevention, Ji'nan City, Shandong Province 250022, China
| | - Du-Bao Yang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Zhen-Yong Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Lin Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China.
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92
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Corona AK, Jackson WT. Finding the Middle Ground for Autophagic Fusion Requirements. Trends Cell Biol 2018; 28:869-881. [PMID: 30115558 PMCID: PMC6197918 DOI: 10.1016/j.tcb.2018.07.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/29/2018] [Accepted: 07/06/2018] [Indexed: 12/26/2022]
Abstract
Autophagosome/amphisome-lysosome fusion is a highly regulated process at the protein, lipid, and biochemical level. Each primary component of fusion, such as the core SNAREs, HOPS complex, or physical positioning by microtubule-associated dynein motors, are regulated at multiple points to ensure optimum conditions for autophagic flux to proceed. With the complexity of the membrane fusion system, it is not difficult to imagine how autophagic flux defect-related disorders, such as Huntington's disease, non-familial Alzheimer's disease, and Vici syndrome develop. Each membrane fusion step is regulated at the protein, lipid, and ion level. This review aims to discuss the recent developments toward understanding the regulation of autophagosome, amphisome, and lysosome fusion requirements for successful autophagic flux.
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Affiliation(s)
- Abigail K Corona
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore Avenue, Baltimore, MD 21201, USA
| | - William T Jackson
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore Avenue, Baltimore, MD 21201, USA.
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93
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Wang Y, Jiang L, He J, Hu M, Zeng F, Li Y, Tian H, Luo X. The Adverse Effects of Se Toxicity on Inflammatory and Immune Responses in Chicken Spleens. Biol Trace Elem Res 2018; 185:170-176. [PMID: 29302868 DOI: 10.1007/s12011-017-1224-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 12/15/2017] [Indexed: 12/17/2022]
Abstract
Selenium (Se) is an essential trace element, but excessive intake of Se could induce Se poisoning, and result in various health problems. NF-κB regulated many molecules of the immune response and the inflammatory response, and Th1/Th2 balance played a key in the regulation of immune response. The aim of this study is to investigate the role of NF-κB pathway and Th1/Th2 imbalance in the adverse influence of Se poisoning on chicken spleens. In the current study, 90 chickens were randomly divided into two groups (n = 45 per group). The chickens were maintained either on a basal diet (the control group) containing 0.2 mg/kg Se or a high supplemented diet (the Se group) containing 15 mg/kg Se for 45 days. Then, we observed the pathohistology of spleen cells and detected NO content, iNOS activity, and the expression of NF-κB, iNOS, COX-2, PTGE, IL-6, TNF-α, Foxp3, IL-4, and IFN-γ in chicken spleens. In chicken spleens of the Se group, the result showed typical characteristics of inflammation: the content of NO and the activity of iNOS were increased, and the expression of NF-κB, iNOS, COX-2, PTGE, IL-6, TNF-α, and IL-4 was enhanced and that of Foxp3 and IFN-γ was decreased. Our study showed that Se toxicity could promote inflammation via NF-κB pathway, impairing the immune function, and changing Th1/Th2 balance in the chicken spleens.
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Affiliation(s)
- Yachao Wang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
- Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Li Jiang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Jian He
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Mao Hu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Fankun Zeng
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Yuanfeng Li
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - He Tian
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Xuegang Luo
- Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China.
- School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China.
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94
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Chen M, Li X, Fan R, Yang J, Jin X, Hamid S, Xu S. Cadmium induces BNIP3-dependent autophagy in chicken spleen by modulating miR-33-AMPK axis. CHEMOSPHERE 2018; 194:396-402. [PMID: 29223809 DOI: 10.1016/j.chemosphere.2017.12.026] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 12/01/2017] [Accepted: 12/05/2017] [Indexed: 06/07/2023]
Abstract
Cadmium (Cd), a widespread environmental pollutant, has toxic effects on organs including spleen. However, the underlying mechanisms of Cd induced spleen toxicity and the roles of micro-RNA (miRNA) in this process remain poorly understood. To investigate this, cadmium chloride (CdCl2, 10 mg/kg) was administered in the diet of chickens for 90 days. Electron microscopy, qPCR and Western blot were performed. Results showed that Cd exposure suppressed miR-33-5q which increased the levels of AMPK. Subsequently, significant decrease in AKT/mTOR signaling and HSP70 were observed. Concurrently, levels of NF-κB, p-JNK/JNK increased significantly. Moreover, the expression of BNIP3 and other autophagy markers (LC3-I, LC3-II, Beclin-1) increased significantly. Additionally, the levels of ions (Ca, Cr, Se, Sr, Sn, Ba) and (Na, Mg, V, Fe, Mo, Cu, Zn, Cd) significantly decreased and increased, respectively. Taken together, we conclude that Cd induced the deregulation of miR-33-AMPK axis led to BNIP3-dependent autophagy in chicken spleen through AKT/mTOR and HSP70-NF-κB/JNK signal pathways. In-addition Cd could affect ion homeostasis in chicken spleen.
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Affiliation(s)
- Menghao Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Xiaojing Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Ruifeng Fan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jie Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Xi Jin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Sattar Hamid
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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95
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Li S, Zhao H, Wang Y, Shao Y, Wang B, Wang Y, Xing M. Regulation of autophagy factors by oxidative stress and cardiac enzymes imbalance during arsenic or/and copper induced cardiotoxicity in Gallus gallus. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 148:125-134. [PMID: 29035754 DOI: 10.1016/j.ecoenv.2017.10.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 10/05/2017] [Accepted: 10/05/2017] [Indexed: 06/07/2023]
Abstract
Basal autophagy has an indispensable role in the functioning and maintenance of cardiac geometry under physiological conditions. Recently, increasing evidence has demonstrated that arsenic (As)/copper (Cu) play important roles in the autophagy of the heart. The current study was to evaluate whether oxidative damage by As or/and Cu was correlated with autophagy through the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway in the heart of birds. Arsenic trioxide (30mg/kg) or/and cupric sulfate (300mg/kg) were administered in a basal diet to male Hy-line chickens (one-day-old) for 12 weeks. The results showed that heart weight/body weight ratio decreased in the As + Cu group only at 4, 8 and 12 weeks. Moreover, we observed that As or/and Cu decreased high-density lipoprotein cholesterol (HDL-C) concentrations, increased total cholesterol (T-CHO) concentrations and cardiac enzymes activities in the serum. On the other hand, As or/and Cu significantly reduced the activities of total antioxidant (T-AOC), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px)) along with decreased nonenzymic antioxidant (glutathione (GSH)) concentrations and increased malondialdehyde (MDA) concentrations in the heart. Furthermore, As or/and Cu could induce autophagy in the heart of chickens through decreased mRNA levels of TORC1, TORC2, microtubule associated light chains 3-I (LC3-I) and increased PI3K, AKT1, Beclin1, autophagy associated gene 4B (Atg4B), microtubule associated light chains 3-II (LC3-II), autophagy associated gene 5 (Atg5) and Dynein. Meanwhile, ultrastructural examinations showed that As/Cu could result in the appearance of autolygosomes, autophagic vacuoles and double-membrane structures in the heart. In conclusion, As or/and Cu induced cardiac damage and autophagy via elevating cardiac enzymes activities, inducing oxidative stress and activating the PI3K/AKT/mTORC pathway in heart of chickens. Moreover, As and Cu had a possible synergistic relationship in the heart of chickens.
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Affiliation(s)
- Siwen Li
- College of Wildlife Resources, Northeast Forestry University, Harbin 150040, People's Republic of China.
| | - Hongjing Zhao
- College of Wildlife Resources, Northeast Forestry University, Harbin 150040, People's Republic of China
| | - Yu Wang
- College of Wildlife Resources, Northeast Forestry University, Harbin 150040, People's Republic of China
| | - Yizhi Shao
- College of Wildlife Resources, Northeast Forestry University, Harbin 150040, People's Republic of China
| | - Bangyi Wang
- College of Wildlife Resources, Northeast Forestry University, Harbin 150040, People's Republic of China
| | - Yulong Wang
- College of Wildlife Resources, Northeast Forestry University, Harbin 150040, People's Republic of China.
| | - Mingwei Xing
- College of Wildlife Resources, Northeast Forestry University, Harbin 150040, People's Republic of China.
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96
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Wang XY, Wang ZY, Zhu YS, Zhu SM, Fan RF, Wang L. Alleviation of cadmium-induced oxidative stress by trehalose via inhibiting the Nrf2-Keap1 signaling pathway in primary rat proximal tubular cells. J Biochem Mol Toxicol 2017; 32. [DOI: 10.1002/jbt.22011] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 10/17/2017] [Accepted: 10/27/2017] [Indexed: 01/05/2023]
Affiliation(s)
- Xin-Yu Wang
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
| | - Zhen-Yong Wang
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
| | - Yi-Song Zhu
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
| | - Si-Ming Zhu
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
| | - Rui-Feng Fan
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
| | - Lin Wang
- College of Animal Science and Veterinary Medicine; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention; Shandong Agricultural University; Tai'an City Shandong Province 271018 People's Republic of China
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97
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Wang XY, Yang H, Wang MG, Yang DB, Wang ZY, Wang L. Trehalose protects against cadmium-induced cytotoxicity in primary rat proximal tubular cells via inhibiting apoptosis and restoring autophagic flux. Cell Death Dis 2017; 8:e3099. [PMID: 29022917 PMCID: PMC5682644 DOI: 10.1038/cddis.2017.475] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 08/16/2017] [Accepted: 08/23/2017] [Indexed: 02/06/2023]
Abstract
Autophagy has an important renoprotective function and we recently found that autophagy inhibition is involved in cadmium (Cd)-induced nephrotoxicity. Here, we aimed to investigate the protective effect of trehalose (Tre), a novel autophagy activator, against Cd-induced cytotoxicity in primary rat proximal tubular (rPT) cells. First, data showed that Tre treatment significantly decreased Cd-induced apoptotic cell death of rPT cells via inhibiting caspase-dependent apoptotic pathway, evidenced by morphological analysis, flow cytometric and immunoblot assays. Also, administration with Tre protected rPT cells against Cd-induced lipid peroxidation. Inhibition of autophagic flux in Cd-exposed rPT cells was markedly restored by Tre administration, demonstrated by immunoblot analysis of autophagy marker proteins and GFP and RFP tandemly tagged LC3 method. Resultantly, Cd-induced autophagosome accumulation was obviously alleviated by Tre treatment. Meanwhile, blockage of autophagosome-lysosome fusion by Cd exposure was noticeably restored by Tre, which promoted the autophagic degradation in Cd-exposed rPT cells. Moreover, Tre treatment markedly recovered Cd-induced lysosomal alkalinization and impairment of lysosomal degradation capacity in rPT cells, demonstrating that Tre has the ability to restore Cd-impaired lysosomal function. Collectively, these findings demonstrate that Tre treatment alleviates Cd-induced cytotoxicity in rPT cells by inhibiting apoptosis and restoring autophagic flux.
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Affiliation(s)
- Xin-Yu Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
| | - Heng Yang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
| | - Min-Ge Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
| | - Du-Bao Yang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
| | - Zhen-Yong Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
| | - Lin Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Tai’an City 271018, China
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98
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Selenium deficiency-induced thioredoxin suppression and thioredoxin knock down disbalanced insulin responsiveness in chicken cardiomyocytes through PI3K/Akt pathway inhibition. Cell Signal 2017; 38:192-200. [PMID: 28734787 DOI: 10.1016/j.cellsig.2017.07.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 06/26/2017] [Accepted: 07/16/2017] [Indexed: 01/15/2023]
Abstract
Thioredoxin (Txn) system is the most crucial antioxidant defense mechanism in cell consisting of Txn, thioredoxin reductase (TR) and Nicotinamide Adenine Dinucleotide Phosphate (NADPH). Perturbations in Txn system may compromise cell survival through oxidative stress induction. Metabolic activity of insulin plays important roles in fulfilling the stable and persistent demands of heart through glucose metabolism. However, the roles of Txn and Txn system in insulin modulated cardiac energy metabolism have been less reported. Therefore, to investigate the role of Txn in myocardial metabolism, we developed a Se-deficient chicken model (0.033mg/kg) for in-vivo and Txn knock down cardiomyocytes culture model (siRNA) for in-vitro studies. Quantitative real time PCR and western blotting was performed. Se deficiency suppressed Txn and TR in cardiac tissues. Significant increases in ROS (P<0.05) levels signify the onset of oxidative stress and in both models. Se deficiency-induced Txn suppression model and Txn knock down cardiomyocytes models significantly decreased (P<0.05), the mRNA and protein levels of insulin-like growth factors (IGF1, IGF2), IGF-binding proteins (IGFBP2, IGFBP4), insulin receptor (IR), insulin receptor substrates (IRS1, IRS2), and glucose transporters (GLUT1, GLUT3, GLUT8), however, IGFBP3 expression increased in Txn knock down cardiomyocytes. In addition, in contrast to their respective controls, Se deficiency-induced Txn depleted tissues and Txn deleted cardiomyocytes showed suppression in mRNA and protein levels of PI3K, AKT, P-PI3K, and repression in FOX, P-FOX JNK genes. Combing the in vitro and in vivo experiments, we demonstrate that Txn gene suppression can cause dysfunction of insulin-modulated cardiac energy metabolism and increase insulin resistance through PI3K-Akt pathway inhibition. Herein, we conclude that inactivation of Txn system can alter cellular insulin response through IRS/PI3K/Akt pathway repression and JNK and FOX expression. These findings point out that Txn system can redox regulate the insulin dependent glucose metabolism in heart and is essential for cell vitality. Moreover, the increased expression of IGFBP3 indicates that it can be a potential negative modulator of metabolic activity of insulin in Txn deficient cells.
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99
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Cai J, Zhang Y, Yang J, Liu Q, Zhao R, Hamid S, Wang H, Xu S, Zhang Z. Antagonistic effects of selenium against necroptosis injury via adiponectin-necrotic pathway induced by cadmium in heart of chicken. RSC Adv 2017. [DOI: 10.1039/c7ra07952d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Cadmium (Cd) is one of the most toxic heavy metals having a destructive impact on various organ systems.
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Affiliation(s)
- Jingzeng Cai
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Yuan Zhang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Jie Yang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Qi Liu
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Rihong Zhao
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Sattar Hamid
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Hong Wang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Shiwen Xu
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Ziwei Zhang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment
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100
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Li XC, Hu QK, Chen L, Liu SY, Su S, Tao H, Zhang LN, Sun T, He LJ. HSPB8 Promotes the Fusion of Autophagosome and Lysosome during Autophagy in Diabetic Neurons. Int J Med Sci 2017; 14:1335-1341. [PMID: 29200947 PMCID: PMC5707750 DOI: 10.7150/ijms.20653] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 09/12/2017] [Indexed: 01/11/2023] Open
Abstract
Although autophagy has been proposed to play an emerging role in diabetic neuropathy, autophagy and its possible role remains unclear. Moreover, only few studies about diabetes have explored the autophagy mediated by heat shock protein beta-8 (HSPB8) and Bcl-2 associated athanogene 3 (BAG3). In the present study, we examined the autophagy induced by high glucose levels in an in vivo rat model of diabetes induced by streptozotocin (STZ) and an in vitro model of retinal ganglion cell-5 (RGC5) cells under high glucose conditions. In the spinal cord tissues of the STZ-induced diabetic rats, the levels of light chain 3 (LC3) and Beclin-1-marked autophagy rose with increasing HSPB8 and BAG3 levels. By confocal immunofluorescence, HSPB8 and LC3 were observed to be co-localized in the spinal cord tissues. In the RGC5 cells, high-glucose stimulation upregulated the expression of LC3-Ⅱ, Beclin-1, and HSPB8 in a dose-dependent manner. When the RGC5 cells were subjected to high-glucose conditions, HSPB8 overexpression, along with upregulated LC3-Ⅱ and Beclin-1 expression, increased the autophagic rate, whereas siRNA-silenced HSPB8 decreased the autophagic rate. Furthermore, in GFP-mRFP-LC3 probe experiments, HSPB8 overexpression promoted autophagosome-lysosome fusion, whereas HSPB8 silencing disrupted this process. In the cells treated with HSPB8 and siRNA, the fusion was impaired, as indicated by the elevated p62 expression. HSPB8 overexpression can partly rescue the blocking of the autophagy flux with chloroquine through the reduction of p62 expression level. Our study demonstrated that HSPB8 is involved in the high glucose-induced autophagy under the in vivo and in vitro conditions and critically participated in the autophagosome-lysosome fusion during the autophagy flux.
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Affiliation(s)
- Xiao-Cheng Li
- General Hospital of Ningxia Medical University, Yinchuan, 750000, China.,Ningxia Key Laboratory of Cerebrocranial Diseases, the National Key Laboratory Incubation Base, Yinchuan, 750000, China.,Department of Endocrinology, the First Affiliated Hospital of Xi'an Medical University, Xi'an, 710000, China
| | - Qi-Kuan Hu
- Ningxia Key Laboratory of Cerebrocranial Diseases, the National Key Laboratory Incubation Base, Yinchuan, 750000, China.,Department of Physiology, Ningxia Medical University, Yinchuan, 750000, China
| | - Ling Chen
- General Hospital of Ningxia Medical University, Yinchuan, 750000, China.,Ningxia Key Laboratory of Cerebrocranial Diseases, the National Key Laboratory Incubation Base, Yinchuan, 750000, China
| | - Si-Yang Liu
- General Hospital of Ningxia Medical University, Yinchuan, 750000, China.,Ningxia Key Laboratory of Cerebrocranial Diseases, the National Key Laboratory Incubation Base, Yinchuan, 750000, China
| | - Shi Su
- General Hospital of Ningxia Medical University, Yinchuan, 750000, China.,Ningxia Key Laboratory of Cerebrocranial Diseases, the National Key Laboratory Incubation Base, Yinchuan, 750000, China
| | - Hong Tao
- Ningxia Key Laboratory of Cerebrocranial Diseases, the National Key Laboratory Incubation Base, Yinchuan, 750000, China.,Department of Physiology, Ningxia Medical University, Yinchuan, 750000, China
| | - Lin-Na Zhang
- General Hospital of Ningxia Medical University, Yinchuan, 750000, China.,Ningxia Key Laboratory of Cerebrocranial Diseases, the National Key Laboratory Incubation Base, Yinchuan, 750000, China.,Department of Physiology, Ningxia Medical University, Yinchuan, 750000, China
| | - Tao Sun
- Ningxia Key Laboratory of Cerebrocranial Diseases, the National Key Laboratory Incubation Base, Yinchuan, 750000, China
| | - Lan-Jie He
- General Hospital of Ningxia Medical University, Yinchuan, 750000, China.,Department of Endocrinology, Qilu Hospital of Shandong University (Qingdao), Qingdao, 266000, China
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