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Zhang X, Gan X, E Q, Zhang Q, Ye Y, Cai Y, Han A, Tian M, Wang Y, Wang C, Su L, Liang C. Ameliorative effects of nano-selenium against NiSO 4-induced apoptosis in rat testes. Toxicol Mech Methods 2019; 29:467-477. [PMID: 31050317 DOI: 10.1080/15376516.2019.1611979] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Nickel (Ni) is a common environmental pollutant, which has toxic effects on reproductive system. Nowadays, nano-selenium (Nano-Se) has aroused great attention due to its unique antioxidant effect, excellent biological activities and low toxicity. The aim of this study was to explore the protective effects of Nano-Se on NiSO4-induced testicular injury and apoptosis in rat testes. Nickel sulfate (NiSO4) (5 mg/kg b.w.) was administered intraperitoneally and Nano-Se (0.5, 1, and 2 mg Se/kg b.w., respectively) was given by oral gavage in male Sprague-Dawley rats. Histological changes in the testes were determined by H&E staining. The terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) assay and immunohistochemistry were performed to evaluate the apoptosis in testes. Expression levels of mitochondrial apoptosis-related genes and proteins were analyzed by RT-qPCR and Western blot. The results showed that Nano-Se improved lesions of testicular tissue induced by NiSO4. Nano-Se significantly alleviated NiSO4-induced apoptosis in rat testes, as well as significantly downregulated the Bak, cytochrome c, caspase-9 and caspase-3 and upregulated Bcl-2 expression levels, all of which were involved in mitochondria-mediated apoptosis. Altogether, we concluded that Nano-Se may potentially exert protective effects on NiSO4-induced testicular injury and attenuate apoptosis, at least partly, via regulating mitochondrial apoptosis pathways in rat testes.
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Affiliation(s)
- Xiaotian Zhang
- a Department of Toxicology, School of Public Health , Lanzhou University , Lanzhou , China
| | - Xiaoqin Gan
- a Department of Toxicology, School of Public Health , Lanzhou University , Lanzhou , China
| | - Qiannan E
- a Department of Toxicology, School of Public Health , Lanzhou University , Lanzhou , China
| | - Qiong Zhang
- a Department of Toxicology, School of Public Health , Lanzhou University , Lanzhou , China
| | - Yixing Ye
- b Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Hefei Institutes of Physical Science , Chinese Academy of Sciences , Hefei , China
| | - Yunyu Cai
- b Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Hefei Institutes of Physical Science , Chinese Academy of Sciences , Hefei , China
| | - Aijie Han
- a Department of Toxicology, School of Public Health , Lanzhou University , Lanzhou , China
| | - Minmin Tian
- a Department of Toxicology, School of Public Health , Lanzhou University , Lanzhou , China
| | - Yixuan Wang
- a Department of Toxicology, School of Public Health , Lanzhou University , Lanzhou , China
| | - Caixia Wang
- a Department of Toxicology, School of Public Health , Lanzhou University , Lanzhou , China
| | - Li Su
- a Department of Toxicology, School of Public Health , Lanzhou University , Lanzhou , China
| | - Changhao Liang
- b Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Hefei Institutes of Physical Science , Chinese Academy of Sciences , Hefei , China
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Yang SJ, Han AR, Kim EA, Yang JW, Ahn JY, Na JM, Cho SW. KHG21834 attenuates glutamate-induced mitochondrial damage, apoptosis, and NLRP3 inflammasome activation in SH-SY5Y human neuroblastoma cells. Eur J Pharmacol 2019; 856:172412. [PMID: 31129157 DOI: 10.1016/j.ejphar.2019.172412] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/15/2019] [Accepted: 05/22/2019] [Indexed: 12/23/2022]
Abstract
New compounds were screened to develop effective drugs against glutamate-induced toxicity. The present study assessed the effects of the novel thiazole derivative KHG21834 against glutamate-induced toxicity in human neuroblastoma SH-SY5Y cell cultures. Treatment of SH-SY5Y cells with KHG21834 significantly protected cells against glutamate-induced toxicity in a dose-dependent manner, with an optimum concentration of 50 μM. KHG21834 protected SH-SY5Y cells against glutamate toxicity by suppressing glutamate-induced oxidative stress by 50%. KHG21834 also attenuated glutamate-induced mitochondrial membrane potential, ATP level reductions, and intracellular Ca2+ influx. Furthermore, KHG21834 efficiently reduced glutamate-induced ER stress and NLRP3 inflammasome activation (59% and 65% of glutamate group, respectively). In addition, KHG21834 effectively attenuated glutamate-induced levels of Bax, Bcl-2, cleaved caspase-3, p-p38, p-JNK proteins, and TUNEL positive cells. To our knowledge, this is the first study showing that KHG21834 can effectively protect SH-SY5Y cells against glutamate toxicity, suggesting that this compound may be a valuable therapeutic agent for the treatment of glutamate toxicity.
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Affiliation(s)
- Seung-Ju Yang
- Department of Biomedical Laboratory Science, Konyang University, Daejeon, 35365, South Korea
| | - A Reum Han
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Eun-A Kim
- Department of Biomedical Laboratory Science, Konyang University, Daejeon, 35365, South Korea
| | - Ji Woong Yang
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Jee-Yin Ahn
- Department of Molecular Cell Biology, Center for Molecular Medicine, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, 16419, South Korea
| | - Jung-Min Na
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Sung-Woo Cho
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, 05505, South Korea.
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Li Q, Jia Y, Burris WR, Bridges PJ, Matthews JC. Forms of selenium in vitamin-mineral mixes differentially affect the expression of genes responsible for prolactin, ACTH, and α-MSH synthesis and mitochondrial dysfunction in pituitaries of steers grazing endophyte-infected tall fescue. J Anim Sci 2019; 97:631-643. [PMID: 30476104 DOI: 10.1093/jas/sky438] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 08/14/2018] [Indexed: 01/08/2023] Open
Abstract
The goal of this study was to test the hypothesis that sodium selenite (inorganic Se, ISe), SEL-PLEX (organic forms of Se, OSe), vs. a 1:1 blend (MIX) of ISe and OSe in a basal vitamin-mineral (VM) mix would differentially alter pituitary transcriptome profiles in growing beef steers grazing an endophyte-infected tall fescue (E+) pasture. Predominately Angus steers (BW = 183 ± 34 kg) were randomly selected from fall-calving cows grazing E+ pasture and consuming VM mixes that contained 35 ppm Se as ISe, OSe, or MIX forms. Steers were weaned, depleted of Se for 98 d, and subjected to summer-long common grazing of a 10.1 ha E+ pasture containing 0.51 ppm ergot alkaloids. Steers were assigned (n = 8 per treatment) to the same Se-form treatments on which they were raised. Selenium treatments were administered by daily top-dressing 85 g of VM mix onto 0.23 kg soyhulls, using in-pasture Calan gates. As previously reported, serum prolactin was greater for MIX (52%) and OSe (59%) steers vs. ISe. Pituitaries were collected at slaughter and changes in global and selected mRNA expression patterns determined by microarray and real-time reverse transcription PCR analyses, respectively. The effects of Se treatment on relative gene expression were subjected to one-way ANOVA. The form of Se affected the expression of 542 annotated genes (P < 0.005). Integrated pathway analysis found a canonical pathway network between prolactin and pro-opiomelanocortin (POMC)/ACTH/α-melanocyte-stimulating hormone (α-MSH) synthesis-related proteins and that mitochondrial dysfunction was a top-affected canonical pathway. Targeted reverse transcription-PCR analysis found that the relative abundance of mRNA encoding prolactin and POMC/ACTH/α-MSH synthesis-related proteins was affected (P < 0.05) by the form of Se, as were (P ≤ 0.05) mitochondrial dysfunction-related proteins (CYB5A, FURIN, GPX4, and PSENEN). OSe steers appeared to have a greater prolactin synthesis capacity (more PRL mRNA) vs. ISe steers through decreased dopamine type two receptor signaling (more DRD2 mRNA), whereas MIX steers had a greater prolactin synthesis capacity (more PRL mRNA) and release potential by increasing thyrotropin-releasing hormone concentrations (less TRH receptor mRNA) than ISe steers. OSe steers also had a greater ACTH and α-MSH synthesis potential (more POMC, PCSK2, CPE, and PAM mRNA) than ISe steers. We conclude that form of Se in VM mixes altered expression of genes responsible for prolactin and POMC/ACTH/α-MSH synthesis, and mitochondrial function, in pituitaries of growing beef steers subjected to summer-long grazing an E+ pasture.
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Affiliation(s)
- Qing Li
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky
| | - Yang Jia
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky
| | - Walter R Burris
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky
| | - Phillip J Bridges
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky
| | - James C Matthews
- Department of Animal and Food Sciences, University of Kentucky, Lexington, Kentucky
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Pavón N, Buelna-Chontal M, Macías-López A, Correa F, Uribe-Álvarez C, Hernández-Esquivel L, Chávez E. On the oxidative damage by cadmium to kidney mitochondrial functions. Biochem Cell Biol 2019; 97:187-192. [DOI: 10.1139/bcb-2018-0196] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
In the kidney, the accumulation of heavy metals such as Cd2+ produces mitochondrial dysfunctions, i.e., uncoupling of the oxidative phosphorylation, inhibition of the electron transport through the respiratory chain, and collapse of the transmembrane electrical gradient. This derangement may be due to the fact that Cd2+ induces the transition of membrane permeability from selective to nonselective via the opening of a transmembrane pore. In fact, Cd2+ produces this injury through the stimulation of oxygen-derived radical generation, inducing oxidative stress. Several molecules have been used to avoid or even reverse Cd2+-induced mitochondrial injury, for instance, cyclosporin A, resveratrol, dithiocarbamates, and even EDTA. The aim of this study was to explore the possibility that the antioxidant tamoxifen could protect mitochondria from the deleterious effects of Cd2+. Our results indicate that the addition of 1 μmol/L Cd2+ to mitochondria collapsed the transmembrane electrical gradient, induced the release of cytochrome c, and increased both the generation of H2O2 and the oxidative damage to mitochondrial DNA (among other measured parameters). Of interest, these mitochondrial dysfunctions were ameliorated after the addition of tamoxifen.
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Affiliation(s)
- Natalia Pavón
- Departamento de Farmacología, Instituto Nacional de Cardiología, Ignacio Chávez, Ciudad de México, México
| | - Mabel Buelna-Chontal
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología, Ignacio Chávez, Ciudad de México, México
| | - Arturo Macías-López
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología, Ignacio Chávez, Ciudad de México, México
| | - Francisco Correa
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología, Ignacio Chávez, Ciudad de México, México
| | | | - Luz Hernández-Esquivel
- Departamento de Bioquímica, Instituto Nacional de Cardiología, Ignacio Chávez, Ciudad de México, México
| | - Edmundo Chávez
- Departamento de Bioquímica, Instituto Nacional de Cardiología, Ignacio Chávez, Ciudad de México, México
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Islam BU, Jabir NR, Tabrez S. The role of mitochondrial defects and oxidative stress in Alzheimer's disease. J Drug Target 2019; 27:932-942. [PMID: 30775938 DOI: 10.1080/1061186x.2019.1584808] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Alzheimer's disease (AD) is a complex, progressive, and irreversible neurodegenerative disorder. Recent reports suggest that it affects more than 36 million people worldwide and accounts 60-80% of all cases of dementia. It is characterised by aberrations of multiple interactive systems and pathways, which ultimately lead to memory loss and cognitive dysfunction. The exact mechanisms and initial triggering factors that underpin the known pathological defects in AD remain to be fully elucidated. In addition, an effective treatment strategy to reduce the progression of AD is yet to be achieved. In the light of above-mentioned facts, our article deals with the exploration of the mitochondrial defect and oxidative stress leading to this devastating disease. In this communication, we have highlighted specific mitochondrial and antioxidant-directed approach to ameliorate and manage AD. Nonetheless, new approaches should also be investigated that could tackle various molecular events involved in AD pathogenicity.
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Affiliation(s)
- Badar Ul Islam
- a Department of Biochemistry, J N Medical College, Faculty of Medicine, Aligarh Muslim University , Aligarh , India
| | - Nasimudeen R Jabir
- b King Fahd Medical Research Center, King Abdulaziz University , Jeddah , Saudi Arabia.,c Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University , Jeddah , Saudi Arabia
| | - Shams Tabrez
- b King Fahd Medical Research Center, King Abdulaziz University , Jeddah , Saudi Arabia.,c Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University , Jeddah , Saudi Arabia
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56
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Handl J, Čapek J, Majtnerová P, Petira F, Hauschke M, Roušarová E, Roušar T. Transient increase in cellular dehydrogenase activity after cadmium treatment precedes enhanced production of reactive oxygen species in human proximal tubular kidney cells. Physiol Res 2019; 68:481-490. [PMID: 30904015 DOI: 10.33549/physiolres.934121] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Cadmium is a heavy metal causing toxicity especially in kidney cells. The toxicity is linked also with enhanced oxidative stress leading to cell death. On the other hand, our recent experiments have shown that an increase of total intracellular dehydrogenases activity can also occur in kidney cells before declining until cell death. The aim of the present study, therefore, was to evaluate this transient enhancement in cell viability after cadmium treatment. The human kidney HK-2 cell line was treated with CdCl(2) at concentrations 0-200 microM for 2-24 h and intracellular dehydrogenase activity was tested. In addition, we measured reactive oxygen species (ROS) production, glutathione levels, mitochondrial membrane potential, and C-Jun-N-terminal kinase (JNK) activation. We found that significantly increased dehydrogenase activity could occur in cells treated with 25, 100, and 200 microM CdCl(2). Moreover, the results showed an increase in ROS production linked with JNK activation following the enhancement of dehydrogenase activity. Other tests detected no relationship with the increased in intracellular dehydrogenase activity. Hence, the transient increase in dehydrogenase activity in HK-2 cells preceded the enhancement of ROS production and our finding provides new evidence in cadmium kidney toxicity.
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Affiliation(s)
- J Handl
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic.
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57
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Rahman MM, Hossain KFB, Banik S, Sikder MT, Akter M, Bondad SEC, Rahaman MS, Hosokawa T, Saito T, Kurasaki M. Selenium and zinc protections against metal-(loids)-induced toxicity and disease manifestations: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 168:146-163. [PMID: 30384162 DOI: 10.1016/j.ecoenv.2018.10.054] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/12/2018] [Accepted: 10/13/2018] [Indexed: 06/08/2023]
Abstract
Metals are ubiquitous in the environment due to huge industrial applications in the form of different chemicals and from extensive mining activities. The frequent exposures to metals and metalloids are crucial for the human health. Trace metals are beneficial for health whereas non-essential metals are dangerous for the health and some are proven etiological factors for diseases including cancers and neurological disorders. The interactions of essential trace metals such as selenium (Se) and zinc (Zn) with non-essential metals viz. lead (Pb), cadmium (Cd), arsenic (As), and mercury (Hg) in biological system are very critical and complex. A huge number of studies report the protective role of Se and Zn against metal toxicity, both in animal and cellular levels, and also explain the numerous mechanisms involved. However, it has been considered that a tiny dyshomeostasis in the metals/trace metals status in biological system could induce severe deleterious effects that can manifest to numerous diseases. Thus, in this particular review, we have demonstrated the critical protection mechanism/s of Se and Zn against Cd, Pb, As and Hg toxicity in a one by one manner to clarify the up-to-date findings and perspectives. Furthermore, biomolecular consequences are comprehensively presented in light of particular cellular/biomolecular events which are somehow linked to a subsequent disease. The analyzed reports support significant protection potential of Se and Zn, either alone or in combination with other agents, against each of the abovementioned non-essential metals. However, Se and Zn are still not being used as detoxifying agents due to some unexplained reasons. We hypothesized that Se could be a potential candidate for detoxifying As and Hg regardless of their chemical speciations, but requires intensive clinical trials. However, particularly Zn-Hg interaction warrants more investigations both in animal and cellular level.
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Affiliation(s)
- Md Mostafizur Rahman
- Graduate School of Environmental Science, Hokkaido University, 060-0810 Sapporo, Japan; Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
| | | | - Subrata Banik
- Graduate School of Environmental Science, Hokkaido University, 060-0810 Sapporo, Japan
| | - Md Tajuddin Sikder
- Graduate School of Environmental Science, Hokkaido University, 060-0810 Sapporo, Japan; Faculty of Health Sciences, Hokkaido University, 060-0812 Sapporo, Japan
| | - Mahmuda Akter
- Graduate School of Environmental Science, Hokkaido University, 060-0810 Sapporo, Japan
| | | | - Md Shiblur Rahaman
- Graduate School of Environmental Science, Hokkaido University, 060-0810 Sapporo, Japan
| | - Toshiyuki Hosokawa
- Research Division of Higher Education, Institute for the Advancement of Higher Education, Hokkaido University, 060-0817 Sapporo, Japan
| | - Takeshi Saito
- Faculty of Health Sciences, Hokkaido University, 060-0812 Sapporo, Japan
| | - Masaaki Kurasaki
- Graduate School of Environmental Science, Hokkaido University, 060-0810 Sapporo, Japan; Faculty of Environmental Earth Science, Hokkaido University, 060-0810 Sapporo, Japan.
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Inam-U-Llah, Shi X, Zhang M, Li K, Wu P, Suleman R, Shahbaz M, Taj A, Piao F. Protective Effect of Taurine on Apoptosis of Spinal Cord Cells in Diabetic Neuropathy Rats. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1155:875-887. [PMID: 31468454 DOI: 10.1007/978-981-13-8023-5_74] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Diabetes mellitus (DM) is a condition characterized by chronic hyperglycemia, which leads to diabetic neuropathy and apoptosis in the spinal cord. Taurine has been found to ameliorate the diabetic neuropathy and control apoptosis in various tissues. However, there are few reports that discuss the direct relationship between spinal cord and anti-apoptotic effect of taurine. In this study, DM was induced in male SD rats with STZ @ 25 mg/Kg of body weight in combination with high fat diet. After 2 weeks, they were divided into four groups as DM: diabetic rats, T1 (0.5%), T2 (1%) and T3 (2%) taurine solution, while control group was non-diabetic rats (no treatment). The results showed that DM increased apoptosis, decreased phosphorylated Akt and Bad. DM decreased expression of Bcl-2 and increased the Bax. Moreover, the release of cytochrome c into cytosol was increased in DM and activation of caspase-3 was also increased. However, taurine reversed all these abnormal changes in a dose dependent manner. Our results suggested the involvement of Akt/Bad signaling pathway and mitochondrial apoptosis pathway in protective effect of taurine against apoptosis in the spinal cord of diabetic rats. Therefore, taurine may be a potential medicine against diabetic neuropathy by controlling apoptosis.
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Affiliation(s)
- Inam-U-Llah
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Xiaoxia Shi
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Mengren Zhang
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Kaixin Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Pingan Wu
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Raheel Suleman
- Institute of Food Science and Technology, Chinese Academy of Agricultural Science, Beijing, China
| | - Muhammad Shahbaz
- Department of Food Science and Technology, Muhammad Nawaz Sharif University of Agriculture, Multan, Pakistan
| | - Ayaz Taj
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China
| | - Fengyuan Piao
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
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59
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Li K, Inam-u-llah, Shi X, Zhang M, Wu P, Li S, Suleman R, Nisar A, Piao F. Anti-apoptotic Effect of Taurine on Schwann Cells Exposed to High Glucose In Vitro. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1155:787-799. [DOI: 10.1007/978-981-13-8023-5_68] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Piao F, Zhou X, Wang D, Shao J, Li Y, Liu X, Zhang C, Zuo E, Shi X, Li S. Protection of Taurine Against Neurotoxicity Induced by Arsenic in Primary Cortical Neurons. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1155:869-874. [PMID: 31468453 DOI: 10.1007/978-981-13-8023-5_73] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Our group previously reported that taurine has a protective capacity on the hippocampus and cerebellum of arsenic (As)-exposed mouse. In the present study, we explore whether taurine demonstrates protection against As toxicity in primary cortical neurons. Primary cortical neurons were exposed to various concentrations of arsenite and cell viability was assessed to confirm the toxicity of As on cortical neurons. The protection of taurine was examined after primary cortical neurons were treating with arsenite and taurine for 24 h. The cell viability was examined by MTT and caspase-3 activity assay. The expression of Bax and Bcl-2 was determined by western blot. The results showed that As exposure reduced cell viability and enhanced the activity of caspase-3, which were markedly inhibited by taurine treatment. The expression of Bax and Bcl-2 were disturbed by As exposure, which were reversed by taurine. These results indicated that taurine expose protective effect on As-exposed primary cortical neurons and its mechanism maybe involved the regulation of Bax/Bcl-2.
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Affiliation(s)
- Fengyuan Piao
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Xueying Zhou
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Dunjia Wang
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Jing Shao
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Yachen Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Xiaohui Liu
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Cong Zhang
- Department of Nutrition and Food Safety, Dalian Medical University, Dalian, China
| | - Enjun Zuo
- College of Stomatology, Dalian Medical University, Dalian, China
| | - Xiaoxia Shi
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Shuangyue Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
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61
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Barst BD, Rosabal M, Drevnick PE, Campbell PGC, Basu N. Subcellular distributions of trace elements (Cd, Pb, As, Hg, Se) in the livers of Alaskan yelloweye rockfish (Sebastes ruberrimus). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 242:63-72. [PMID: 29960926 DOI: 10.1016/j.envpol.2018.06.077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 05/29/2018] [Accepted: 06/22/2018] [Indexed: 06/08/2023]
Abstract
Yelloweye rockfish (Sebastes ruberrimus) is an extremely long-lived species (up to ∼120 years) of fish, which inhabits the coastal waters of Alaska. Due to their long lifespans, yelloweye are known to accumulate high levels of mercury, and potentially other trace elements, in their tissues. Relatively little is known about the subcellular distribution of trace elements in the tissues of yelloweye rockfish; such information can provide important insights into detoxification/toxicity mechanisms at the subcellular level. To address this, we collected yelloweye rockfish (n = 8) from the eastern coast of Prince of Wales Island, Alaska in 2014. We determined the subcellular partitioning of trace elements (cadmium (Cd), lead (Pb), arsenic (As), total mercury (Hg), and selenium (Se)) in yelloweye livers with a partitioning procedure designed to separate liver cells into putative metal-sensitive fractions (cytosolic enzymes, organelles) and detoxified metal fractions (metallothionein or metallothionein-like proteins and peptides, granule-like structures) using differential centrifugation, NaOH digestion, and heat denaturation steps. The resulting fractions were then analyzed for total Hg with a direct Hg analyzer and for trace element concentrations by inductively coupled plasma-mass spectrometry (ICP-MS). For Cd, Pb, and As, the greatest contributions were found in the detoxified fractions, whereas the majority of total Hg was found in sensitive fractions. Selenium, an essential trace element, was distributed to a similar degree between the sensitive and detoxified compartments. Results indicate that although yelloweye sequestered and immobilized potentially toxic elements in detoxified fractions, the extent of binding differed among elements and followed the order: Cd > As > Pb > Hg. In yelloweye rockfish livers, the accumulation of non-essential elements at sensitive sites could lead to deleterious effects at the subcellular level, which should be evaluated in future studies.
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Affiliation(s)
- Benjamin D Barst
- Institut national de la recherche scientifique, Centre Eau Terre et Environnement (INRS-ETE), 490 de la Couronne, Québec, QC, G1K 9A9, Canada; Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, QC, H9X 3V9, Canada.
| | - Maikel Rosabal
- Département des sciences biologiques, Université du Québec à Montréal (UQÀM), Montréal, QC, H2X 1Y4, Canada
| | - Paul E Drevnick
- Institut national de la recherche scientifique, Centre Eau Terre et Environnement (INRS-ETE), 490 de la Couronne, Québec, QC, G1K 9A9, Canada; Environmental Monitoring and Science Division, Alberta Environment and Parks, Calgary, AB, T2E 7L7, Canada
| | - Peter G C Campbell
- Institut national de la recherche scientifique, Centre Eau Terre et Environnement (INRS-ETE), 490 de la Couronne, Québec, QC, G1K 9A9, Canada
| | - Niladri Basu
- Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, QC, H9X 3V9, Canada
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Wang XJ, Chen W, Fu XT, Ma JK, Wang MH, Hou YJ, Tian DC, Fu XY, Fan CD. Reversal of homocysteine-induced neurotoxicity in rat hippocampal neurons by astaxanthin: evidences for mitochondrial dysfunction and signaling crosstalk. Cell Death Discov 2018; 4:50. [PMID: 30374413 PMCID: PMC6197197 DOI: 10.1038/s41420-018-0114-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/29/2018] [Accepted: 10/01/2018] [Indexed: 11/09/2022] Open
Abstract
Elevated plasma level of homocysteine (Hcy) represents an independent risk for neurological diseases, and induction of oxidative damage is considered as one of the most important pathomechanisms. Astaxanthin (ATX) exhibits strong antioxidant activity in kinds of experimental models. However, the potential of ATX against Hcy-induced neurotoxicity has not been well explored yet. Herein, the neuroprotective effect of ATX against Hcy-induced neurotoxicity in rat hippocampal neurons was examined, and the underlying mechanism was evaluated. The results showed that ATX pre-treatment completely reversed Hcy-induced neurotoxicity through inhibiting cell apoptosis in rat primary hippocampal neurons. The mechanical investigation revealed that ATX effectively blocked Hcy-induced mitochondrial dysfunction by regulating Bcl-2 family and opening of mitochondrial permeability transition pore (MPTP). ATX pre-treatment also attenuated Hcy-induced oxidative damage via inhibiting the release of intracellular reactive oxide species (ROS) and superoxide anion through regulating MPTP opening. Moreover, normalization of MAPKs and PI3K/AKT pathways also contributed to ATX-mediated protective effects. Taken together, these results above suggested that ATX has the potential to reverse Hcy-induced neurotoxicity and apoptosis by inhibiting mitochondrial dysfunction, ROS-mediated oxidative damage and regulation of MAKPs and AKT pathways, which validated the strategy of using ATX could be a highly effective way in combating Hcy-mediated neurological disorders.
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Affiliation(s)
- Xian-Jun Wang
- 1Department of Neurology, People's Hospital of Linyi Affiliated to Qingdao University, Linyi, 276000 Shandong China
| | - Wang Chen
- 1Department of Neurology, People's Hospital of Linyi Affiliated to Qingdao University, Linyi, 276000 Shandong China
| | - Xiao-Ting Fu
- 2School of Basic Medicine, Taishan Medical University, Taian, Shandong 271000 China
| | - Jin-Kui Ma
- 3Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Shimoshinjo-Nakano, Akita-shi, Akita 010-0195 Japan
| | - Mei-Hong Wang
- Department of Neurology, People's Hospital of Yishui, Linyi, 276400 Shandong China
| | - Ya-Jun Hou
- 2School of Basic Medicine, Taishan Medical University, Taian, Shandong 271000 China
| | - Da-Chen Tian
- 1Department of Neurology, People's Hospital of Linyi Affiliated to Qingdao University, Linyi, 276000 Shandong China
| | - Xiao-Yan Fu
- 2School of Basic Medicine, Taishan Medical University, Taian, Shandong 271000 China
| | - Cun-Dong Fan
- 2School of Basic Medicine, Taishan Medical University, Taian, Shandong 271000 China
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Ramamoorthy H, Abraham P, Isaac B, Selvakumar D. Mitochondrial pathway of apoptosis and necrosis contribute to tenofovir disoproxil fumarate-induced renal damage in rats. Hum Exp Toxicol 2018; 38:288-302. [PMID: 30326737 DOI: 10.1177/0960327118802619] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Tenofovir disoproxil fumarate (TDF) is currently the only nucleotide analogue reverse-transcriptase inhibitor that is approved by the Food and Drug administration (FDA), USA, for the treatment of human immunodeficiency virus (HIV) infection. In recent days, renal toxicity is becoming common i HIV patients treated with TDF. However, the mechanism of tenofovir nephrotoxicity is not clear. We hypothesized that mitochondrial pathway of apoptosis, poly [ADP-ribose] polymerase (PARP) overactivation and neutrophil infiltration may contribute to tenofovir-induced renal damage. Renal damage was induced in adult male Wistar rats by the oral administration of 600 mg/kg body weight daily for five consecutive weeks. Kidneys were removed and used for histological and biochemical analyses. Apoptosis was detected by terminal deoxynucleotidyl transferase biotin-deoxyuridine triphosphate nick end-labelling (TUNEL) assay and caspase 3 activity and protein expression; mitochondrial pathway of apoptosis by cyt c release; and PARP activation by immunofluorescence, immunohistochemistry and Western blot techniques. Myeloperoxidase (MPO) activity was measured as a marker of neutrophil infiltration. TDF administration resulted in increased number of TUNEL-positive cells, activation of caspase 3 and release of cyt c from mitochondria into the cytosol in the kidneys. There was increased nuclear localization of PARP as well as increase in its protein level in the TDF-treated rat kidneys. In addition, renal MPO activity was increased ninefold as compared to controls. The results of the present study show that mitochondrial apoptotic pathway, PARP overactivation and neutrophil infiltration contribute to tenofovir-induced renal damage in rats.
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Affiliation(s)
- H Ramamoorthy
- 1 Department of Biochemistry, Christian Medical College, Bagayam, Vellore, Tamil Nadu, India
| | - P Abraham
- 1 Department of Biochemistry, Christian Medical College, Bagayam, Vellore, Tamil Nadu, India
| | - B Isaac
- 2 Department of Anatomy, Christian Medical College, Bagayam, Vellore, Tamil Nadu, India
| | - D Selvakumar
- 1 Department of Biochemistry, Christian Medical College, Bagayam, Vellore, Tamil Nadu, India
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Li S, Yang L, Zhang Y, Zhang C, Shao J, Liu X, Li Y, Piao F. Taurine Ameliorates Arsenic-Induced Apoptosis in the Hippocampus of Mice Through Intrinsic Pathway. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 975 Pt 1:183-192. [PMID: 28849454 DOI: 10.1007/978-94-024-1079-2_16] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Our group previously reported that arsenic (As) exposure induced apoptosis in hippocampus neurons. The aim of the present study was to clarify the protective capacity of taurine (Tau) on As-induced neuronal apoptosis and the related mechanism in mouse hippocampus. Mice were divided into: control group, Tau control group, As exposure group and Tau protective group, randomly. The apoptotic rate of mouse hippocampus was determined by TUNEL staining. The levels of Bcl-2 and Bax gene and protein were analyzed by real time RT-PCR and WB, respectively. Furthermore, cytochrome c (Cyt C) release, and the activity of caspase-8 and caspase-3 were also determined. The results showed that Tau treatment induced the decrease of TUNEL-positive cells, prohibited the disturbance of Bcl-2 and Bax expression, and inhibited Cyt C release and caspase-8 and caspase-3 activation significantly. The results indicated that Tau supplement markedly ameliorates As-induced apoptosis by mitochondria-related pathway in mouse hippocampus.
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Affiliation(s)
- Shuangyue Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Lijun Yang
- Dalian Center for Disease Control and Prevention, Dalian, China
| | - Yan Zhang
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
- Xunyi Center for Disease Control and Prevention, Xunyi, China
| | - Cong Zhang
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Jing Shao
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Xiaohui Liu
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Yachen Li
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Fengyuan Piao
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China.
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Jin X, Jia T, Liu R, Xu S. The antagonistic effect of selenium on cadmium-induced apoptosis via PPAR-γ/PI3K/Akt pathway in chicken pancreas. JOURNAL OF HAZARDOUS MATERIALS 2018; 357:355-362. [PMID: 29909169 DOI: 10.1016/j.jhazmat.2018.06.003] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 05/31/2018] [Accepted: 06/01/2018] [Indexed: 06/08/2023]
Abstract
The animal experiment was preformed to investigate the roles of PPAR-γ/PI3K/Akt pathway in apoptosis triggered by cadmium (Cd) and in the antagonistic effects of selenium (Se) on Cd in the pancreas of chicken. The current study showed that Cd treatment obviously increased the accumulation of Cd and directly led to lower activities of amylase, trypsin and lipase in chicken pancreas. The expression of PPAR-γ, PI3K, and Akt was declined, whereas the level of Bax, Cyt C and caspase-3 were increased in Cd group. In the result of TUNEL assay and the histological examination, typical apoptosis characteristics in the pancreas of Cd group were confirmed. Cd group also showed high levels of inducible nitric oxide synthase (iNOS) activity and nitric oxide (NO) content in pancreas. However, those Cd-induced changes were obviously alleviated in Cd + Se group. Our study revealed that Cd could impact the pancreas function and induce the activation of Bax and the overproduction of NO via PPAR-γ/PI3K/Akt pathway to promote apoptosis in chicken pancreas. However, Se could reduce Cd accumulation and antagonize Cd-triggered apoptosis in chicken pancreas.
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Affiliation(s)
- Xi Jin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, PR China.
| | - Tiantian Jia
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, PR China.
| | - Ruohan Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, PR China.
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 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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Cloning and expression analysis of the nuclear factor erythroid 2-related factor 2 (Nrf2) gene of grass carp (Ctenopharyngodon idellus) and the dietary effect of Eucommia ulmoides on gene expression. AQUACULTURE AND FISHERIES 2018. [DOI: 10.1016/j.aaf.2018.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Monteiro C, Ferreira de Oliveira JMP, Pinho F, Bastos V, Oliveira H, Peixoto F, Santos C. Biochemical and transcriptional analyses of cadmium-induced mitochondrial dysfunction and oxidative stress in human osteoblasts. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2018; 81:705-717. [PMID: 29913117 DOI: 10.1080/15287394.2018.1485122] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cadmium (Cd) accumulation is known to occur predominantly in kidney and liver; however, low-level long-term exposure to Cd may also result in bone damage. Few studies have addressed Cd-induced toxicity in osteoblasts, particularly upon cell mitochondrial energy processing and putative associations with oxidative stress in bone. To assess the influence of Cd treatment on mitochondrial function and oxidative status in osteoblast cells, human MG-63 cells were treated with Cd (up to 65 μM) for 24 or 48 h. Intracellular reactive oxygen species (ROS), lipid and protein oxidation and antioxidant defense mechanisms such as total antioxidant activity (TAA) and gene expression of antioxidant enzymes were analyzed. In addition, Cd-induced effects on mitochondrial function were assessed by analyzing the activity of enzymes involved in mitochondrial respiration, membrane potential (ΔΨm), mitochondrial morphology and adenylate energy charge. Treatment with Cd increased oxidative stress, concomitantly with lipid and protein oxidation. Real-time polymerase chain reaction (qRT-PCR) analyses of antioxidant genes catalase (CAT), glutathione peroxidase 1 (GPX1), glutathione S-reductase (GSR), and superoxide dismutase (SOD1 and SOD2) exhibited a trend toward decrease in transcripts in Cd-stressed cells, particularly a downregulation of GSR. Longer treatment with Cd (48 h) resulted in energy charge states significantly below those commonly observed in living cells. Mitochondrial function was affected by ΔΨm reduction. Inhibition of mitochondrial respiratory chain enzymes and citrate synthase also occurred following Cd treatment. In conclusion, Cd induced mitochondrial dysfunction which appeared to be associated with oxidative stress in human osteoblasts.
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Affiliation(s)
- Cristina Monteiro
- a Department of Biology & CESAM , University of Aveiro, Campus Universitário , Aveiro , Portugal
| | - José Miguel P Ferreira de Oliveira
- b LAQV/REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy , University of Porto , Porto , Portugal
| | - Francisco Pinho
- a Department of Biology & CESAM , University of Aveiro, Campus Universitário , Aveiro , Portugal
| | - Verónica Bastos
- c Department of Biology & LAQV/REQUIMTE , Faculty of Sciences of University of Porto , Porto , Portugal
| | - Helena Oliveira
- a Department of Biology & CESAM , University of Aveiro, Campus Universitário , Aveiro , Portugal
| | - Francisco Peixoto
- d Biology and Environment Department , Chemistry Research Center, University of Trás-os-Montes & Alto Douro , Portugal
| | - Conceição Santos
- c Department of Biology & LAQV/REQUIMTE , Faculty of Sciences of University of Porto , Porto , Portugal
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Varlamova EG, Goltyaev MV, Kuznetsova JP. Effect of Sodium Selenite on Gene Expression of SELF, SELW, and TGR Selenoproteins in Adenocarcinoma Cells of the Human Prostate. Mol Biol 2018. [DOI: 10.1134/s0026893318030147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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69
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Li J, Xing L, Zhang R. Effects of Se and Cd Co-treatment on the Morphology, Oxidative Stress, and Ion Concentrations in the Ovaries of Laying Hens. Biol Trace Elem Res 2018; 183:156-163. [PMID: 28815454 DOI: 10.1007/s12011-017-1125-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 08/08/2017] [Indexed: 12/29/2022]
Abstract
This study aims at revealing the effects of the combined treatment of selenium and cadmium on ovary morphology, oxidative stress, and 28 kinds of ion concentrations in laying hens. In this experiment, 128 healthy 31-week-old chickens were selected and divided into four treatment groups, three of which were separately fed the basic diets supplemented with either Se or Cd or both Se and Cd for 90 days, and the remaining group was fed the basic diet and treated as a control. The chickens were sacrificed for collecting ovarian tissues. Morphological structure and ultrastructure analysis of ovaries in the Cd-treated group revealed ovarian damage, with decreased activities of SOD and GPx, along with increased levels of MDA and H2O2. Cd treatment also resulted in disturbances in ion balance. The concentrations of Ca, Ti, Cu, Zn, and Ba were significantly reduced, while the concentrations of Fe, Mo, and Cd were significantly increased when compared with the control group. Interestingly, the damages caused by cadmium were alleviated in the Se+Cd-treated group. These results indicate that selenium can alleviate cadmium-induced ovarian damages.
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Affiliation(s)
- Jianhong Li
- College of Life Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
| | - Lu Xing
- College of Life Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Runxiang Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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Flavocoxid, a Natural Antioxidant, Protects Mouse Kidney from Cadmium-Induced Toxicity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:9162946. [PMID: 29849925 PMCID: PMC5932425 DOI: 10.1155/2018/9162946] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 02/15/2018] [Accepted: 02/25/2018] [Indexed: 12/18/2022]
Abstract
Background Cadmium (Cd), a diffused environmental pollutant, has adverse effects on urinary apparatus. The role of flavocoxid, a natural flavonoid with antioxidant activity, on the morphological and biochemical changes induced in vivo by Cd in mice kidney was evaluated. Methods C57 BL/6J mice received 0.9% NaCl alone, flavocoxid (20 mg/kg/day i.p.) alone, Cd chloride (CdCl2) (2 mg/kg/day i.p.) alone, or CdCl2 plus flavocoxid (2 mg/kg/day i.p. plus 20 mg/kg/day i.p.) for 14 days. The kidneys were processed for biochemical, structural, ultrastructural, and morphometric evaluation. Results Cd treatment alone significantly increased urea nitrogen and creatinine, iNOS, MMP-9, and pERK 1/2 expression and protein carbonyl; reduced GSH, GR, and GPx; and induced structural and ultrastructural changes in the glomeruli and in the tubular epithelium. After 14 days of treatment, flavocoxid administration reduced urea nitrogen and creatinine, iNOS, MMP-9, and pERK 1/2 expression and protein carbonyl; increased GSH, GR, and GPx; and showed an evident preservation of the glomerular and tubular structure and ultrastructure. Conclusions A protective role of flavocoxid against Cd-induced oxidative damages in mouse kidney was demonstrated for the first time. Flavocoxid may have a promising antioxidant role against environmental Cd harmful effects on glomerular and tubular lesions.
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Hu X, Chandler JD, Fernandes J, Orr ML, Hao L, Uppal K, Neujahr DC, Jones DP, Go YM. Selenium supplementation prevents metabolic and transcriptomic responses to cadmium in mouse lung. Biochim Biophys Acta Gen Subj 2018; 1862:2417-2426. [PMID: 29656123 DOI: 10.1016/j.bbagen.2018.04.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 04/10/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND The protective effect of selenium (Se) on cadmium (Cd) toxicity is well documented, but underlying mechanisms are unclear. METHODS Male mice fed standard diet were given Cd (CdCl2, 18 μmol/L) in drinking water with or without Se (Na2SeO4, 20 μmol/L) for 16 weeks. Lungs were analyzed for Cd concentration, transcriptomics and metabolomics. Data were analyzed with biostatistics, bioinformatics, pathway enrichment analysis, and combined transcriptome-metabolome-wide association study. RESULTS Mice treated with Cd had higher lung Cd content (1.7 ± 0.4 pmol/mg protein) than control mice (0.8 ± 0.3 pmol/mg protein) or mice treated with Cd and Se (0.4 ± 0.1 pmol/mg protein). Gene set enrichment analysis of transcriptomics data showed that Se prevented Cd effects on inflammatory and myogenesis genes and diminished Cd effects on several other pathways. Similarly, Se prevented Cd-disrupted metabolic pathways in amino acid metabolism and urea cycle. Integrated transcriptome and metabolome network analysis showed that Cd treatment had a network structure with fewer gene-metabolite clusters compared to control. Centrality measurements showed that Se counteracted changes in a group of Cd-responsive genes including Zdhhc11, (protein-cysteine S-palmitoyltransferase), Ighg1 (immunoglobulin heavy constant gamma-1) and associated changes in metabolite concentrations. CONCLUSION Co-administration of Se with Cd prevented Cd increase in lung and prevented Cd-associated pathway and network responses of the transcriptome and metabolome. Se protection against Cd toxicity in lung involves complex systems responses. GENERAL SIGNIFICANCE Environmental Cd stimulates proinflammatory and profibrotic signaling. The present results indicate that dietary or supplemental Se could be useful to mitigate Cd toxicity.
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Affiliation(s)
- Xin Hu
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Joshua D Chandler
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Jolyn Fernandes
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Michael L Orr
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Li Hao
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Karan Uppal
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, USA
| | - David C Neujahr
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Dean P Jones
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, USA.
| | - Young-Mi Go
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, USA.
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Mezynska M, Brzóska MM. Environmental exposure to cadmium-a risk for health of the general population in industrialized countries and preventive strategies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:3211-3232. [PMID: 29230653 DOI: 10.1007/s11356-017-0827-z] [Citation(s) in RCA: 170] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 11/23/2017] [Indexed: 05/10/2023]
Abstract
Cadmium (Cd) is a heavy metal belonging to the group of the main chemical pollutants of the natural and occupational environment in economically developed countries. The forecasts indicate that contamination of the environment with this toxic metal, and thus the exposure of the general population, will increase. Food (particularly plant products) is the main source of the general population exposure to this element. Moreover, an important, and often the main, source of intoxication with Cd is habitual tobacco smoking. Recent epidemiological studies have provided numerous evidence that even low-level environmental exposure to this toxic metal, nowadays occurring in numerous economically developed countries, creates a risk for health of the general population. The low-level lifetime exposure to this metal may lead to the damage to the kidneys, liver, skeletal system, and cardiovascular system, as well as to the deterioration of the sight and hearing. Moreover, it has been suggested that environmental exposure to this xenobiotic may contribute to the development of cancer of the lung, breast, prostate, pancreas, urinary bladder, and nasopharynx. Taking the above into account, the aim of this review article is to draw more attention to Cd as an environmental risk factor for the health of the general population and the need to undertake preventive actions allowing to reduce the risk of health damage due to a lifetime exposure to this toxic metal.
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Affiliation(s)
- Magdalena Mezynska
- Department of Toxicology, Medical University of Bialystok, Adama Mickiewicza 2C street, 15-222, Bialystok, Poland.
| | - Malgorzata M Brzóska
- Department of Toxicology, Medical University of Bialystok, Adama Mickiewicza 2C street, 15-222, Bialystok, Poland.
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Bao R, Wang X, Zheng S, Zhang Q, Lin H, Li S. Selenium Supplementation Changes the Ion Profile in the Pancreas of Chickens Treated with Cadmium. Biol Trace Elem Res 2018; 181:133-141. [PMID: 28451783 DOI: 10.1007/s12011-017-1034-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 04/20/2017] [Indexed: 02/06/2023]
Abstract
Increasing evidence indicates that selenium (Se) could antagonize metal toxicity, including cadmium (Cd) toxicity. However, the effects of Se on Cd-induced changes in the ion profile in the pancreas of chickens have not been reported. In the present study, 128 Hy-Line brown laying chickens were divided into the control group, Se-treated group, Se/Cd-treated group, and Cd-treated group, and we detected the concentrations of 28 ions in the four groups by inductively coupled plasma mass spectrometry. In the Cd-treated group, the accumulation of Cd in the pancreas was 836.8 times higher that than in the control group (27,353.71 ppb/32.69 ppb). Meanwhile, the Ca, Ti, Fe, Mo, Li, Al, and Pb levels increased and the Cr, Mn, Ni, Cu, Zn, Se, Sr, and Sb levels decreased due to sub-chronic Cd poisoning. The Fe, Mo, Ba, and Pb levels decreased in the Se/Cd-treated group. Our findings suggest that Cd can accumulate in the chicken pancreas and affect the ion profiles, whereas Se can ameliorate the accumulation of Cd and change the ion profiles in the chicken pancreas.
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Affiliation(s)
- Rongkun Bao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Xinyue Wang
- College of Life Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Shufang Zheng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Qiaojian Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Hongjin Lin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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Zhu Y, Jiao X, An Y, Li S, Teng X. Selenium against lead-induced apoptosis in chicken nervous tissues via mitochondrial pathway. Oncotarget 2017; 8:108130-108145. [PMID: 29296229 PMCID: PMC5746131 DOI: 10.18632/oncotarget.22553] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 06/05/2017] [Indexed: 12/28/2022] Open
Abstract
To investigate alleviative effect of selenium (Se) on lead (Pb)-induced apoptosis in chicken nervous tissues, 7-day-old chickens were randomly divided into four groups. The control group was fed a standard diet and drinking water. In the Pb and Se/Pb groups, (CH3OO)2Pb was dissolved in drinking water. In the Se and Se/Pb groups, Na2SeO3 was put into the standard diet. Embryonic neurocytes were divided into the control, Se (containing Na2SeO3), Pb (containing (CH3COO)2Pb), and Se/Pb (containing Na2SeO3 and (CH3COO)2Pb) groups. The following contents were performed: Morphologic observation for 90 days in brain tissues and for 12, 24, 36, and 48 hours in embryonic neurocytes; and antioxidant indexes, messenger RNA (mRNA) expression of twenty-five selenoproteins, and mRNA and protein expression of five apoptosis-related genes for 30, 60, and 90 days in brain tissues and for 12, 24, 36, and 48 hours in embryonic neurocytes. The results indicated that Se alleviated Pb-caused morphological changes; the decrease of superoxide dismutase, glutathione peroxidase (GPx), GPx1, GPx2, GPx3, GPx4, thioredoxin reductases (Txnrd)1, Txnrd2, Txnrd3, iodothyronine deiodinases (Dio)1, Dio2, Dio3, selenoprotein (Sel)T, SelK, SelS, SelH, SelM, SelU, SelI, SelO, Selpb, selenoprotein (Sep)n1, Sepp1, Sepx1, Sepw1, 15-kDa selenoprotein, and selenophosphate synthetases 2, and B-cell lymphoma-2 (Bcl-2); the increase of malondialdehyde, p53, Bcl-2 associated X protein, cytochrome c, and Caspase-3. Pb had time-dependent effects on GPx4, SelM, and malondialdehyde in the brain tissues; and on SelU in the embryonic neurocytes. Our data demonstrated that Se alleviated Pb-induced apoptosis in the chicken nervous tissues via mitochondrial pathway.
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Affiliation(s)
- Yihao Zhu
- 1 College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Xiaoyan Jiao
- 1 College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Yang An
- 1 College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Shu Li
- 2 College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Xiaohua Teng
- 1 College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, People's Republic of China
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Chi Q, Liu T, Sun Z, Tan S, Li S, Li S. Involvement of mitochondrial pathway in environmental metal pollutant lead-induced apoptosis of chicken liver: perspectives from oxidative stress and energy metabolism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:28121-28131. [PMID: 29019088 DOI: 10.1007/s11356-017-0411-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 10/03/2017] [Indexed: 06/07/2023]
Abstract
This study aimed to investigate the possible mechanisms of environmental metal pollutant lead (Pb)-induced apoptosis in chicken. Forty 8-day-old healthy chickens were randomly assigned to two groups (n = 20/group) after raising standard commercial diet and drinking water for 1 week: including control group and Pb group ((CH3COO)2Pb 350 mg/L of drinking water); the chickens were given euthanasia and collected livers at 90 days. A significant increase of apoptosis rate were found in Pb group and Pb induced obvious ultrastructural changes of chicken liver. The mRNA levels of glycometabolism key enzymes were significantly lower in Pb group than those in controls. Higher levels of malondialdehyde (MDA) and nitric oxide (NO) were observed in Pb group; the activities of antioxidant enzymes and ATPases were significantly lower in Pb group than those in controls, while the inducible nitric oxide synthase (iNOS) activity was on the contrary. The mRNA and protein levels of pro-apoptotic genes were all lower in Pb group than those in controls. Altogether, Pb-induced mitochondrial swelling and nuclear chromatin condensation, oxidative stress, energy metabolism disorder, thereby lead to apoptosis via mitochondrial pathway in chicken liver, suggesting that Pb-induced mitochondrial pathway apoptosis plays an important role in the mechanisms of Pb cytotoxicity to chicken liver.
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Affiliation(s)
- Qianru Chi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Tianqi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Zhepeng Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Siran Tan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Shiping Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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76
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Lv C, Yuan X, Zeng HW, Liu RH, Zhang WD. Protective effect of cinnamaldehyde against glutamate-induced oxidative stress and apoptosis in PC12 cells. Eur J Pharmacol 2017; 815:487-494. [DOI: 10.1016/j.ejphar.2017.09.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 09/01/2017] [Accepted: 09/08/2017] [Indexed: 02/07/2023]
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77
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Toxic Metals Increase Serum Tumor Necrosis Factor-α Levels, Modified by Essential Elements and Different Types of Tumor Necrosis Factor-α Promoter Single-nucleotide Polymorphisms. Epidemiology 2017; 28 Suppl 1:S113-S120. [DOI: 10.1097/ede.0000000000000738] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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78
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Zhang C, Lin J, Ge J, Wang LL, Li N, Sun XT, Cao HB, Li JL. Selenium triggers Nrf2-mediated protection against cadmium-induced chicken hepatocyte autophagy and apoptosis. Toxicol In Vitro 2017; 44:349-356. [DOI: 10.1016/j.tiv.2017.07.027] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 05/31/2017] [Accepted: 07/27/2017] [Indexed: 12/13/2022]
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79
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Zhang R, Yi R, Bi Y, Xing L, Bao J, Li J. The Effect of Selenium on the Cd-Induced Apoptosis via NO-Mediated Mitochondrial Apoptosis Pathway in Chicken Liver. Biol Trace Elem Res 2017; 178:310-319. [PMID: 28062951 DOI: 10.1007/s12011-016-0925-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 12/26/2016] [Indexed: 12/12/2022]
Abstract
Cd-induced apoptosis and the protective effects of Se against Cd-induced injury have been reported in previous studies. However, little is known regarding the effects of Cd-induced apoptosis in hepatic cells and the antagonistic effects of Se on Cd in poultry. In the present study, 128 healthy 31-week-old laying hens were randomly divided into four groups, which were fed basic diets, with the addition of Se (Na2SeO3, 2 mg/kg), Cd (CdCl2, 150 mg/kg), or Se + Cd (150 mg/kg of CdCl2 and 2 mg/kg of Na2SeO3) for 90 days. Ultrastructural changes, nitric oxide (NO) concentrations, inducible nitric oxide synthase (iNOS) activities, results of the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay of apoptosis, and the expression of iNOS and apoptosis-related genes in livers were determined. It was observed that Cd treatment significantly increased the concentrations of NO and iNOS activity in chicken livers. The production of excessive NO initiated the mitochondrial apoptotic pathway. Exposure to Cd increased the mRNA and the protein expression levels of iNOS, caspase-3, Bax, p53, and Cyt-c. Furthermore, the ratio of Bax/Bcl-2 increased, while the expression of Bcl-2 decreased. Treatment with Se significantly alleviated Cd-induced apoptosis in chicken livers, as evidenced by a reduction in the production of NO, iNOS activity, the number of apoptotic cells, and mRNA and protein expression levels of iNOS, caspase-3, Bax, and Cyt-c. It indicated that Cd induced NO-mediated apoptosis through the mitochondrial apoptotic pathway and Se exerted antagonizing effects. The present study provides new insights as to how Se affects Cd-induced toxicity in the chicken liver.
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Affiliation(s)
- Runxiang Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Ran Yi
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Yanju Bi
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Lu Xing
- College of Life Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jun Bao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jianhong Li
- College of Life Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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80
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Zhang Y, Sun D, Meng Q, Guo W, Chen Q, Zhang Y. Grifola frondosa polysaccharides induce breast cancer cell apoptosis via the mitochondrial-dependent apoptotic pathway. Int J Mol Med 2017; 40:1089-1095. [PMID: 28765878 PMCID: PMC5593468 DOI: 10.3892/ijmm.2017.3081] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 07/04/2017] [Indexed: 12/27/2022] Open
Abstract
Grifola frondosa, a type of food and medical fungus, has been shown to exhibit various pharmacological activities, including anticancer effects. As the most typical cancer diagnosed among female patients, breast cancer remains a huge concern threatening human health globally. In the present study, the anti-breast cancer effects of Grifola frondosa polysaccharides (GFPs) and the underlying mechanisms were investigated in MCF-7 and MDA-MB-231 cells, as well as in nude mice bearing MCF-7 tumor xenografts. GFPs exerted cytotoxic effects on the cells, as indicated by a decrease in cell viability, and an increase in the apoptototic rate, lactate dehydrogenase release and reactive oxygen species accumulation, inducing mitochondrial dysfunction. The increased expression of Bax, cleaved caspase-3 and caspase-8, and the reduced levels of B-cell lymphoma 2 (Bcl-2) and Bcl-extra large (Bcl-xL) were observed in the cells incubated with GFPs and in the tumor tissues of the mice treated with GFPs. Moreover, the GFPs significantly suppressed the phosphorylation of AKT/glycogen synthase kinase-3β and extracellular signal-regulated kinases in a time-dependent manner. Finally, the inhibition of MCF-7 tumor xenograft growth further confirmed the anti-breast cancer effects of GFPs. All these findings revealed that GFPs induced human breast cancer cell apoptosis via the mitochondrial-dependent apoptotic pathway, and provide experimental evidence to support the use of Grifola frondosa as a potential treatment for breast cancer.
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Affiliation(s)
- Yizhi Zhang
- Department of Neurology, The Second Hospital of Jilin University, Jilin University, Changchun, Jilin 130041, P.R. China
| | - Dejun Sun
- Department of Biomedicine, Institute for Regeneration Medicine, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Qingjin Meng
- Department of Neurology, Brain Hospital of Jilin Province, Siping, Jilin 136000, P.R. China
| | - Wanxu Guo
- Department of Neurology, The Second Hospital of Jilin University, Jilin University, Changchun, Jilin 130041, P.R. China
| | - Qiuhui Chen
- Department of Neurology, The Second Hospital of Jilin University, Jilin University, Changchun, Jilin 130041, P.R. China
| | - Ying Zhang
- Department of Neurology, The Second Hospital of Jilin University, Jilin University, Changchun, Jilin 130041, P.R. China
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81
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Kaur S, Saluja M, Bansal MP. Bisphenol A induced oxidative stress and apoptosis in mice testes: Modulation by selenium. Andrologia 2017; 50. [DOI: 10.1111/and.12834] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2017] [Indexed: 12/23/2022] Open
Affiliation(s)
- S. Kaur
- Department of Biophysics; Panjab University; Chandigarh India
| | - M. Saluja
- Department of Biophysics; Panjab University; Chandigarh India
| | - M. P. Bansal
- Department of Biophysics; Panjab University; Chandigarh India
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82
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Hepatopancreatic cells of a stone crab Menippe frontalis from Perú: separation, viability study, and evaluation of lipoperoxidation against cadmium contamination. In Vitro Cell Dev Biol Anim 2017; 53:778-781. [PMID: 28593424 DOI: 10.1007/s11626-017-0168-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Accepted: 05/10/2017] [Indexed: 10/19/2022]
Abstract
Crustaceans are frequently used as bioindicators, and changes in their metabolism at the hepatopancreas (HP) level are often followed in these studies. The HP is the site of digestion, absorption, nutrient storage, and toxic metal detoxification, enabling crabs to survive in metal contaminated regions. Cellular damage and high lipid peroxidation (LPO) levels have been found in crab populations under high cadmium (Cd) concentrations. The aim of this work was to separate and characterize the HP cells of the stone crab Menippe frontalis from the Pacific Ocean, Perú (5° 5' 21″ S-81° 6' 51″ W) and to measure the cellular viability and LPO after exposure to the non-essential metal Cd. The HP cells were dissociated by magnetic stirring, with posterior separation by sucrose gradient at concentrations of 10, 20, 30, and 40%. We found the same cell types that were described for other species (e.g., Ucides cordatus, Atlantic Ocean, Brazil). High cellular viability against 1 mmol L-1 of Cd was observed for resorptive (R) cells in 20% sucrose layer (88 ± 8%, *P < 0.05, ANOVA), and blister (B) cells in the 40% sucrose layers (92 ± 7%, *P < 0.05, ANOVA). Cd (1 mmol L-1) caused an increase in LPO levels, suggesting that crabs from polluted areas can be affected by toxic metals, generating a physiological stress. The gradient sucrose methodology can be used for different species and results in a similar separation, viability, and cellular identification. The results are a starting point for toxic metal studies for species distributed across different geographic coordinates.
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83
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Fu B, Zhao J, Peng W, Wu H, Zhang Y. Resveratrol rescues cadmium-induced mitochondrial injury by enhancing transcriptional regulation of PGC-1α and SOD2 via the Sirt3/FoxO3a pathway in TCMK-1 cells. Biochem Biophys Res Commun 2017; 486:198-204. [PMID: 28286268 DOI: 10.1016/j.bbrc.2017.03.027] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Accepted: 03/08/2017] [Indexed: 12/11/2022]
Abstract
Resveratrol has been reported to ameliorate Cd-induced nephrotoxicity. However, the beneficial effects of resveratrol on Cd-induced nephrotoxicity and the underlying mechanisms of this protection remain unclear. Here, we showed that mouse renal tubular epithelial (TCMK-1) cells exposed to Cd experienced significantly increased mitochondrial reactive oxygen species (mROS) production, as well as decreased mitochondrial biogenesis and function. Cd exposure dramatically decreased Sirt3 protein expression and activity and promoted the acetylation of forkhead box O3 (FoxO3a). Moreover, Cd exposure led to a decreased binding affinity of FoxO3a to the promoters of both peroxisome proliferator-activated receptor-gamma coactivator (PGC)-1α and superoxide dismutase 2 (SOD2), powerful and broad regulators of mitochondrial biogenesis and mROS metabolism. Meanwhile, resveratrol remarkably reduced mROS generation by promoting Sirt3 enrichment within the mitochondria and subsequent upregulation of FoxO3a-mediated mitochondria gene expression of PGC-1α and SOD2. Importantly, mechanistic study revealed that ERK1/2 activation was associated with increased apoptosis induced by Cd, resveratrol suppressed Cd-induced apoptosis in mice kidney. Taken together, our data suggest a novel mechanism of action for resveratrol-attenuated Cd-induced cellular damage, which, in part, was mediated through the activation of the Sirt3/FoxO3a signaling pathway.
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Affiliation(s)
- Beibei Fu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jiamin Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Wei Peng
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Haibo Wu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, China.
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84
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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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85
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Oladipo OO, Ayo JO, Ambali SF, Mohammed B. Evaluation of hepatorenal impairments in Wistar rats coexposed to low-dose lead, cadmium and manganese: insights into oxidative stress mechanism. Toxicol Mech Methods 2016; 26:674-684. [DOI: 10.1080/15376516.2016.1223242] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Olusola Olalekan Oladipo
- Biochemistry Division, National Veterinary Research Institute, Vom, Nigeria
- Department of Veterinary Pharmacology and Toxicology, Ahmadu Bello University, Zaria, Nigeria
| | | | | | - Bisalla Mohammed
- Department of Veterinary Pathology, Ahmadu Bello University, Zaria, Nigeria
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86
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Zhang R, Wang L, Zhao J, Wang C, Bao J, Li J. Effects of Selenium and Cadmium on Ion Profiles in the Brains of Chickens. Biol Trace Elem Res 2016; 174:218-225. [PMID: 27071613 DOI: 10.1007/s12011-016-0693-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 03/28/2016] [Indexed: 12/23/2022]
Abstract
Antagonistic effects of selenium (Se) in cadmium (Cd)-induced toxicity have been frequently reported in previous studies. However, little was known about the interactions of Se and Cd on ion profiles in the brains of poultry. The aim of this study was to investigate the interaction between Se and Cd in the ion profile of the chicken brain. In the present study, a total of 128 laying hens were fed a Se-, Cd-, or Se + Cd-supplemented diet for 90 days. Levels of 28 ions were detected in chicken brains using ICP-MS. We found that Cd exposure significantly increased the content of Cd in the brain; furthermore, the content of lithium (Li), stannum (Sn), and stibium (Sb) increased, but the content of kalium (K) decreased. The content of Se in the brain was not altered by Se supplementation; however, Se reduced the concentrations of Sn and Sb, which in contrast were increased by Cd exposure. Complex interactions between ions were analyzed by principal component analysis, and both positive and negative correlations between different ions were found after prolonged exposure to Se and Cd. These findings suggest that Se and Cd supplementation influences the ion profiles in the chicken brain, and moreover, Se may have an antagonistic effect under longer exposure to Cd.
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Affiliation(s)
- Runxiang Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Lisha Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Jianing Zhao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Chao Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Jun Bao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China.
| | - Jianhong Li
- College of Life Science, Northeast Agricultural University, Harbin, 150030, China.
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87
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Wang H, Liu Z, Zhang W, Yuan Z, Yuan H, Liu X, Yang C, Guan W. Cadmium-induced apoptosis of Siberian tiger fibroblasts via disrupted intracellular homeostasis. Biol Res 2016; 49:42. [PMID: 27776532 PMCID: PMC5078894 DOI: 10.1186/s40659-016-0103-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 10/13/2016] [Indexed: 12/30/2022] Open
Abstract
Background Heavy metals can cause great harm to Siberian tigers in the natural environment. Cadmium (Cd2+) is an environmental contaminant that affects multiple cellular processes, including cell proliferation, differentiation, and survival. It has been shown to induce apoptosis in a variety of cell types and tissues. Results We investigated the apoptotic effects of Cd2+ on Siberian tiger fibroblasts in vitro. Our research revealed the typical signs of apoptosis after Cd2+ exposure. Apoptosis was dose- (0–4.8 μM) and duration-dependent (12–48 h), and proliferation was strongly inhibited. Cd2+ increased the activity of caspase-3, -8, and -9 and disrupted calcium homeostasis by causing oxidative stress and mitochondrial dysfunction. It also increased K+ efflux and altered the mRNA levels of Bax, Bcl-2, caspase-3, caspase-8, Fas, and p53. Conclusions Our results suggest that Cd2+ triggers the apoptosis of Siberian tiger fibroblasts by disturbing intracellular homeostasis. These results will aid in our understanding of the effects of Cd2+ on Siberian tigers and in developing interventions to treat and prevent cadmium poisoning.
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Affiliation(s)
- Hui Wang
- Jinzhou Medical University, Jinzhou, 121001, China.,Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Zheng Liu
- Jinzhou Medical University, Jinzhou, 121001, China
| | - Wenxiu Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Ziao Yuan
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Hongyi Yuan
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xueting Liu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Chunwen Yang
- College of Life Science and Technology, Mudanjiang Normal University, Mudanjiang, 157012, China
| | - Weijun Guan
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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88
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Li X, Zhang Y, Yuan Y, Sun Y, Qin Y, Deng Z, Li H. Protective Effects of Selenium, Vitamin E, and Purple Carrot Anthocyanins on D-Galactose-Induced Oxidative Damage in Blood, Liver, Heart and Kidney Rats. Biol Trace Elem Res 2016; 173:433-42. [PMID: 27025718 DOI: 10.1007/s12011-016-0681-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 03/16/2016] [Indexed: 12/12/2022]
Abstract
The present study was performed to investigate the protective effects of selenium (Se), vitamin E (Vit E) and anthocyanins from purple carrots and their combination against the oxidative stress induced by D-galactose in rats. A total of 80 male rats were equally divided into 11 groups, one of which acted as control (I) just receiving intraperitoneal injections of physiological saline. The remaining ten groups (II-XI) were intraperitoneally injected with D-galactose at a dose of 400 mg kg(-1) body weight (BW) per day for 42 consecutive days. Rats in groups III-XI were treated with antioxidants via gavage per day as follows: group III: Se-methylselenocysteine (SeMSC), IV: Se as sodium selenite (Na2SeO3), V: Se-enriched yeast (SeY), VI: Vit E as α-tocopherol acetate, VII: anthocyanin from purple carrots (APC), VIII: APC + Vit E, IX: SeMSC + APC+ Vit E, X: Na2SeO3 + APC + Vit E, XI: SeY + Ant + Vit E. The results showed that the rats treated with antioxidants (III-XI) showed significant decreases in the levels of malondialdehyde (MDA) and carbonyl protein (PCO) compared with the D-galactose-treated group (II) in the heart, liver, kidneys, and blood. Moreover, there were significant increases in the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px), glutathione (GSH) concentration, and total antioxidant capacity (T-AOC) in the heart, liver, kidneys, and blood of antioxidant-treated animals (III-XI) than those in control group (I). In addition, the combined treatments of two or three antioxidants showed greater antioxidant activities than those of individual treatments, suggesting the synergistic antioxidant effects of Se, Vit E, and APC. In conclusion, all the antioxidants exhibited protective effects against D-galactose-induced oxidative damage in rats, and these antioxidants showed a synergistic effect.
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Affiliation(s)
- Xia Li
- State Key Laboratory of Food Science and Technology, University of Nanchang, Nanchang, Jiangxi, 330047, China
| | - Yunlong Zhang
- State Key Laboratory of Food Science and Technology, University of Nanchang, Nanchang, Jiangxi, 330047, China
| | - Yuan Yuan
- State Key Laboratory of Food Science and Technology, University of Nanchang, Nanchang, Jiangxi, 330047, China
| | - Yong Sun
- State Key Laboratory of Food Science and Technology, University of Nanchang, Nanchang, Jiangxi, 330047, China
| | - Yan Qin
- State Key Laboratory of Food Science and Technology, University of Nanchang, Nanchang, Jiangxi, 330047, China
| | - Zeyuan Deng
- State Key Laboratory of Food Science and Technology, University of Nanchang, Nanchang, Jiangxi, 330047, China
- Institute for Advanced Study, University of Nanchang, Nanchang, Jiangxi, 330031, China
| | - Hongyan Li
- State Key Laboratory of Food Science and Technology, University of Nanchang, Nanchang, Jiangxi, 330047, China.
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89
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Epigallocatechin-3-gallate attenuates cadmium-induced chronic renal injury and fibrosis. Food Chem Toxicol 2016; 96:70-8. [PMID: 27474435 DOI: 10.1016/j.fct.2016.07.030] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 07/13/2016] [Accepted: 07/25/2016] [Indexed: 12/11/2022]
Abstract
Cadmium (Cd) pollution is a serious environmental problem. Kidney is a main target organ of Cd toxicity. This study was undertaken to investigate the potential protective effects of epigallocatechin-3-gallate (EGCG) against chronic renal injury and fibrosis induced by CdCl2. Rat model was induced by exposing to 250 mg/L CdCl2 through drinking water. The renal function was evaluated by detecting the levels of blood urea nitrogen (BUN) and serum creatinine (SCR). The oxidative stress was measured by detecting the levels of malondialdehyde (MDA), nitric oxide (NO), reduced glutathione/oxidized glutathione (GSH/GSSG) and renal enzymatic antioxidant status. Additionally, the renal levels of transforming growth factor-β1 (TGF-β1), Smad3, phosphorylation-Smad3 (pp-Smad3), α-smooth muscle actin (α-SMA), vimentin and E-cadherin were measured by western blot assay. Renal levels of microRNA-21 (miR-21), miR-29a/b/c and miR-192 were measured by quantitative RT-PCR. It was found that EGCG ameliorated the CdCl2-induced renal injury, inhibited the level of oxidative stress, normalized renal enzymatic antioxidant status and E-cadherin level, as well as attenuated the over generation of TGF-β1, pp-Smad3, vimentin and α-SMA. EGCG also decreased the production of miR-21 and miR-192, and enhanced the levels of miR-29a/b/c. These results showed that EGCG could attenuate Cd induced chronic renal injury.
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90
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Li SY, Qi Y, Hu SH, Piao FY, Guan H, Wang ZM, Chen RL, Liu S. Mesenchymal stem cells-conditioned medium protects PC12 cells against 2,5-hexanedione-induced apoptosis via inhibiting mitochondria-dependent caspase 3 pathway. Toxicol Ind Health 2016; 33:107-118. [PMID: 26419259 DOI: 10.1177/0748233715598267] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Studies suggested that the conditioned medium of mesenchymal stem cells (MSC-CM) inhibited the increased apoptosis in various cells. However, there are no reports underlying the protection of MSC-CM against 2,5-hexanedione (HD)-induced apoptosis in neural cells. In the present study, the viability was observed in PC12 cells that received HD alone or with MSC-CM by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Apoptosis was estimated by Hoechst 33342 staining and flow cytometry. Mitochondrial transmembrane potential was examined by rhodamine 123. Moreover, we investigated the expression of Bax and Bcl-2, cytochrome c translocation, and caspase 3 activity by real-time polymerase chain reaction, Western blot, and immunochemistry. Nerve growth factor (NGF) was examined in MSCs and MSC-CM. Our results showed that MSC-CM promoted cell survival and reduced apoptosis in HD-exposed PC12 cells. Moreover, MSC-CM significantly reversed disturbance of Bax and Bcl-2, ameliorated disruption of mitochondrial transmembrane potential, and reduced release of cytochrome c and activity of caspase 3 in HD-exposed PC12 cells. In the meantime, NGF was detected in MSCs and MSC-CM. These findings demonstrate that MSC-CM protects against HD-induced apoptosis in PC12 cells via inhibiting mitochondrial pathway. Our results indicate that NGF in MSC-CM may be involved in the protection of MSC-CM against HD-induced apoptosis. Our study clarifies the protection of MSC-CM on HD neurotoxicity and its underlying mechanism.
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Affiliation(s)
- Shuang-Yue Li
- 1 Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, China
| | - Yuan Qi
- 1 Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, China
| | - Shu-Hai Hu
- 2 College of Stomatology, Dalian Medical University, Dalian, Liaoning, China
| | - Feng-Yuan Piao
- 1 Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, China
| | - Huai Guan
- 3 Department of Obstetrics and Gynecology, Dalian, Liaoning, China
| | - Zhe-Min Wang
- 1 Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, China
| | - Ruo-Lin Chen
- 1 Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, China
| | - Shuang Liu
- 1 Department of Occupational and Environmental Health, Dalian Medical University, Dalian, Liaoning, China
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91
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Ponton DE, Caron A, Hare L, Campbell PGC. Hepatic oxidative stress and metal subcellular partitioning are affected by selenium exposure in wild yellow perch (Perca flavescens). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 214:608-617. [PMID: 27131821 DOI: 10.1016/j.envpol.2016.04.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/11/2016] [Accepted: 04/15/2016] [Indexed: 06/05/2023]
Abstract
Yellow perch (Perca flavescens) collected from 11 lakes in the Canadian mining regions of Sudbury (Ontario) and Rouyn-Noranda (Quebec) display wide ranges in the concentrations of cadmium (Cd), nickel (Ni), selenium (Se), and thallium (Tl) in their livers. To determine if these trace elements, as well as copper (Cu) and zinc (Zn), are causing oxidative stress in these fish, we measured three biochemical indicators (glutathione (GSH), glutathione disulfide (GSSG) and thiobarbituric acid-reactive substances (TBARS)) in their livers. We observed that 44% of the yellow perch that we collected were at risk of cellular oxidative stress and lipid peroxidation. Considering all fish from all lakes, higher liver Se concentrations were coincident with both lower proportions of GSSG compared to GSH and lower concentrations of TBARS, suggesting that the essential trace-element Se acts as an antioxidant. Furthermore, fish suffering oxidative stress had higher proportions of Cd, Cu and Zn in potentially sensitive subcellular fractions (organelles and heat-denatured proteins) than did fish not suffering from stress. This result suggests that reactive oxygen species may oxidize metal-binding proteins and thereby reduce the capacity of fish to safely bind trace metals. High Cd concentrations in metal-sensitive subcellular fractions likely further exacerbate the negative effects of lower Se exposure.
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Affiliation(s)
- Dominic E Ponton
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement (INRS-ETE), Université du Québec, 490 rue de la Couronne, Quebec City, G1K 9A9, QC, Canada.
| | - Antoine Caron
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement (INRS-ETE), Université du Québec, 490 rue de la Couronne, Quebec City, G1K 9A9, QC, Canada
| | - Landis Hare
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement (INRS-ETE), Université du Québec, 490 rue de la Couronne, Quebec City, G1K 9A9, QC, Canada
| | - Peter G C Campbell
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement (INRS-ETE), Université du Québec, 490 rue de la Couronne, Quebec City, G1K 9A9, QC, Canada
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92
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Jin Y, Zhang S, Tao R, Huang J, He X, Qu L, Fu Z. Oral exposure of mice to cadmium (II), chromium (VI) and their mixture induce oxidative- and endoplasmic reticulum-stress mediated apoptosis in the livers. ENVIRONMENTAL TOXICOLOGY 2016; 31:693-705. [PMID: 25409916 DOI: 10.1002/tox.22082] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 11/07/2014] [Accepted: 11/09/2014] [Indexed: 06/04/2023]
Abstract
Health concerns regarding the environmental heavy metals in wildlife and humans have increased in recent years. We evaluated the effects of exposure of mice to low doses of cadmium (Cd), chromium (Cr) and their mixtures on oxidative- and ER-stress. Male adult mice were orally exposed to Cd (0.5 and 2 mg kg(-1) ), Cr (1 and 4 mg kg(-1) ) and binary Cd+Cr mixtures (0.25 + 05 and 1 + 2 mg kg(-1) ) daily for 36 days. We observed that the bioaccumulation of Cd and Cr in the liver in a dose-dependent manner, and the Cd and Cr contents in the 2 mg kg(-1) Cd and 4 mg kg(-1) Cr treated groups reached 2.43 and 3.46 µg g(-1) liver weight. In addition, treatments with 2 mg kg(-1) Cd, 4 mg kg(-1) Cr or their mixture (1 + 2 mg kg(-1) ) significantly decreased body and liver weights, increased the levels of reactive oxygen species (ROS), malondialdehyde (MDA) and activities of catalase (CAT) and glutathione peroxidase (GPX) in the liver. Moreover, Cd and Cr exposures also elevated the transcription of the oxidative- and endoplasmic reticulum (ER)-stress related genes including Cat, Gpx, heme oxygenase 1 (Ho-1), regulated protein 78 (Grp78), activating transcription factor 6 (Atf6) and proaoptotic CCAAT/-enhancer-binding protein homologous protein (Chop) in a dose dependent manner in the liver. And hepatic cytochrome c levels increased in all Cd, Cr or their mixture treated groups. Furthermore, the transcriptional status and the activities of Caspase 9 and Caspase 3 were increased significantly in the liver when exposed to high doses of Cd, Cr or their mixture. These results suggested that a long period exposure of mice to Cd or Cr has the potential to elicit oxidative- and ER-stress mediated apoptosis in their livers. © 2014 Wiley Periodicals, Inc. Environ Toxicol 31: 693-705, 2016.
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Affiliation(s)
- Yuanxiang Jin
- Department of Biotechnology, College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Songbin Zhang
- Department of Biotechnology, College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Runhua Tao
- Department of Biotechnology, College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Jie Huang
- Department of Biotechnology, College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Xingzhi He
- Department of Biotechnology, College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Lanya Qu
- Department of Biotechnology, College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Zhengwei Fu
- Department of Biotechnology, College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
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93
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Song J, Wang Y, Teng M, Zhang S, Yin M, Lu J, Liu Y, Lee RJ, Wang D, Teng L. Cordyceps militaris induces tumor cell death via the caspase‑dependent mitochondrial pathway in HepG2 and MCF‑7 cells. Mol Med Rep 2016; 13:5132-40. [PMID: 27109250 PMCID: PMC4878560 DOI: 10.3892/mmr.2016.5175] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 03/30/2016] [Indexed: 01/07/2023] Open
Abstract
Cordyceps militaris (CM), an entomopathogenic fungus belonging to the class ascomycetes, possesses various pharmacological activities, including cytotoxic effects, on various types of human tumor cells. The present study investigated the anti-hepatocellular carcinoma (HCC) and anti-breast cancer effects of CM in in vitro and in vivo models. CM aqueous extract reduced cell viability, suppressed cell proliferation, inhibited cell migration ability, caused the over-release of lactate dehydrogenase, induced mitochondrial dysfunction and enhanced apoptotic rates in MCF-7 and HepG2 cells. The expression levels of cleaved poly (ADP ribose) polymerase and caspase-3, biomarkers of apoptosis, were increased following treatment with CM aqueous extract for 24 h. Furthermore, in the MCF-7 and HepG2 cells, enhanced levels of B cell-associated X protein and cleaved caspase-8 were observed in the CM-treated cells. Finally, the antitumor activities of CM in HCC and breast cancer were also confirmed in MCF-7- and HepG2-xengraft nude mice models. Collectively, the data obtained in the present study suggested that the cytotoxic effects of CM aqueous extract on HCC and breast cancer are associated with the caspase-dependent mitochondrial pathway.
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Affiliation(s)
- Jingjing Song
- School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China
| | - Yingwu Wang
- School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China
| | - Meiyu Teng
- School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China
| | - Shiqiang Zhang
- School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China
| | - Mengya Yin
- School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China
| | - Jiahui Lu
- School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China
| | - Yan Liu
- School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China
| | - Robert J Lee
- School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China
| | - Di Wang
- School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China
| | - Lesheng Teng
- School of Life Sciences, Jilin University, Changchun, Jilin 130012, P.R. China
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94
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Chang YM, Chang HH, Kuo WW, Lin HJ, Yeh YL, Padma Viswanadha V, Tsai CC, Chen RJ, Chang HN, Huang CY. Anti-Apoptotic and Pro-Survival Effect of Alpinate Oxyphyllae Fructus (AOF) in a d-Galactose-Induced Aging Heart. Int J Mol Sci 2016; 17:466. [PMID: 27043531 PMCID: PMC4848922 DOI: 10.3390/ijms17040466] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/21/2016] [Accepted: 03/21/2016] [Indexed: 12/16/2022] Open
Abstract
Aging, a natural biological/physiological phenomenon, is accelerated by reactive oxygen species (ROS) accumulation and identified by a progressive decrease in physiological function. Several studies have shown a positive relationship between aging and chronic heart failure (HF). Cardiac apoptosis was found in age-related diseases. We used a traditional Chinese medicine, Alpinate Oxyphyllae Fructus (AOF), to evaluate its effect on cardiac anti-apoptosis and pro-survival. Male eight-week-old Sprague–Dawley (SD) rats were segregated into five groups: normal control group (NC), d-Galactose-Induced aging group (Aging), and AOF of 50 (AL (AOF low)), 100 (AM (AOF medium)), 150 (AH (AOF high)) mg/kg/day. After eight weeks, hearts were measured by an Hematoxylin–Eosin (H&E) stain, Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL)-assays and Western blotting. The experimental results show that the cardiomyocyte apoptotic pathway protein expression increased in the d-Galactose-Induced aging groups, with dose-dependent inhibition in the AOF treatment group (AL, AM, and AH). Moreover, the expression of the pro-survival p-Akt (protein kinase B (Akt)), Bcl-2 (B-cell lymphoma 2), anti-apoptotic protein (Bcl-xL) protein decreased significantly in the d-Galactose-induced aging group, with increased performance in the AOF treatment group with levels of p-IGFIR and p-PI3K (Phosphatidylinositol-3′ kinase (PI3K)) to increase by dosage and compensatory performance. On the other hand, the protein of the Sirtuin 1 (SIRT1) pathway expression decreased in the aging groups and showed improvement in the AOF treatment group. Our results suggest that AOF strongly works against ROS-induced aging heart problems.
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Affiliation(s)
- Yung-Ming Chang
- The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung 84001, Taiwan.
- Chinese Medicine Department, E-DA Hospital, Kaohsiung 82445, Taiwan.
- 1PT Biotechnology Co., Ltd., Taichung 433, Taiwan.
| | - Hen-Hong Chang
- Research Center for Chinese Medicine & Acupuncture, China Medical University, Taichung 40402, Taiwan.
- Departments of Chinese Medicine, China Medical University Hospital, Taichung 40447, Taiwan.
- School of Post-Baccalaureate Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 40402, Taiwan.
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung 40447, Taiwan.
| | - Hung-Jen Lin
- Departments of Chinese Medicine, China Medical University Hospital, Taichung 40447, Taiwan.
- School of Post-Baccalaureate Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 40402, Taiwan.
| | - Yu-Lan Yeh
- Department of pathology, Changhua Christian Hospital, Changhua 50506, Taiwan.
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli 35665, Taiwan.
| | | | - Chin-Chuan Tsai
- The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung 84001, Taiwan.
- Chinese Medicine Department, E-DA Hospital, Kaohsiung 82445, Taiwan.
| | - Ray-Jade Chen
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11042, Taiwan.
| | - Hsin-Nung Chang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
- School of Chinese Medicine, China Medical University, Taichung 40447, Taiwan.
- Department of Health and Nutrition Biotechnology, Asia University, Taichung 41354, Taiwan.
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95
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Sandbichler AM, Höckner M. Cadmium Protection Strategies--A Hidden Trade-Off? Int J Mol Sci 2016; 17:ijms17010139. [PMID: 26805823 PMCID: PMC4730378 DOI: 10.3390/ijms17010139] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 01/15/2016] [Accepted: 01/18/2016] [Indexed: 12/12/2022] Open
Abstract
Cadmium (Cd) is a non-essential transition metal which is introduced into the biosphere by various anthropogenic activities. Environmental pollution with Cd poses a major health risk and Cd toxicity has been extensively researched over the past decades. This review aims at changing the perspective by discussing protection mechanisms available to counteract a Cd insult. Antioxidants, induction of antioxidant enzymes, and complexation of Cd to glutathione (GSH) and metallothionein (MT) are the most potent protective measures to cope with Cd-induced oxidative stress. Furthermore, protection mechanisms include prevention of endoplasmic reticulum (ER) stress, mitophagy and metabolic stress, as well as expression of chaperones. Pre-exposure to Cd itself, or co-exposure to other metals or trace elements can improve viability under Cd exposure and cells have means to reduce Cd uptake and improve Cd removal. Finally, environmental factors have negative or positive effects on Cd toxicity. Most protection mechanisms aim at preventing cellular damage. However, this might not be possible without trade-offs like an increased risk of carcinogenesis.
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Affiliation(s)
| | - Martina Höckner
- University of Innsbruck, Institute of Zoology, Technikerstraße 25, 6020 Innsbruck, Austria.
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96
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Hou YJ, Zhu CC, Duan X, Liu HL, Wang Q, Sun SC. Both diet and gene mutation induced obesity affect oocyte quality in mice. Sci Rep 2016; 6:18858. [PMID: 26732298 PMCID: PMC4702149 DOI: 10.1038/srep18858] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 11/26/2015] [Indexed: 01/19/2023] Open
Abstract
Obesity was shown to cause reproductive dysfunctions such as reduced conception, infertility and early pregnancy loss. However, the possible effects of obesity on oocyte quality are still not fully understood. In this study we investigated the effects of both diet and gene mutation induced obesity on impairments in mouse oocyte polarization, oxidative stress, and epigenetic modifications. Our results showed that high-fat diet induced obesity (HFD) and gene mutation induced obesity (ob/ob) could both impair oocyte meiotic maturation, disrupt spindle morphology, and reduce oocyte polarity. Oocytes from obese mice underwent oxidative stress, as shown by high DHE and ROS levels. Abnormal mitochondrial distributions and structures were observed in oocytes from obese groups of mice and early apoptosis signals were detected, which suggesting that oxidative stress had impaired mitochondrial function and resulted in oocyte apoptosis. Our results also showed that 5 mC levels and H3K9 and H3K27 methylation levels were altered in oocytes from obese mice, which indicated that DNA methylation and histone methylation had been affected. Our results showed that both HFD and ob/ob induced obesity affected oocyte maturation and that oxidative stress-induced early apoptosis and altered epigenetic modifications may be the reasons for reduced oocyte quality in obese mice.
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Affiliation(s)
- Yan-Jun Hou
- College of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095, China
| | - Cheng-Cheng Zhu
- College of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095, China
| | - Xing Duan
- College of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095, China
| | - Hong-Lin Liu
- College of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095, China
| | - Qiang Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095, China
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97
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Chen Z, Gu D, Zhou M, Shi H, Yan S, Cai Y. Regulatory role of miR-125a/b in the suppression by selenium of cadmium-induced apoptosis via the mitochondrial pathway in LLC-PK1 cells. Chem Biol Interact 2016; 243:35-44. [DOI: 10.1016/j.cbi.2015.11.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 11/10/2015] [Accepted: 11/12/2015] [Indexed: 02/07/2023]
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98
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Liu L, Yang B, Cheng Y, Lin H. Ameliorative Effects of Selenium on Cadmium-Induced Oxidative Stress and Endoplasmic Reticulum Stress in the Chicken Kidney. Biol Trace Elem Res 2015; 167:308-19. [PMID: 25805271 DOI: 10.1007/s12011-015-0314-7] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 03/13/2015] [Indexed: 01/11/2023]
Abstract
The harmful influences of dietary cadmium (Cd) on the chicken kidney and the protective role of selenium (Se) against Cd-induced nephrotoxicity in the chicken are relatively unexplored subjects. The aim of this study was to investigate the ameliorative role of Se on the effects of Cd-induced oxidative stress, endoplasmic reticulum stress, and apoptosis in chicken kidneys. For this study, 100-day-old chickens received Se (as 10 mg Na2SeO3/kg dry weight of diet), Cd (as 150 mg CdCl2/kg dry weight of diet), or Cd + Se in their diets for 60 days. Then, the histopathological changes, Cd and Se contents, levels of oxidative stress, inducible nitric oxide synthase-nitric oxide (iNOS-NO) system activity, levels of endoplasmic reticulum (ER) stress, results of the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay of apoptosis, and expression levels of Bcl-2 and caspase 3 in the kidney were examined. The results showed that Cd exposure caused histopathological and ultrastructural damage and apoptosis of the kidneys. Cd administration significantly increased the accumulation of Cd, the malondialdehyde (MDA) content, NO production, iNOS activity, iNOS expression levels, expression levels of ER stress-related genes (GRP78, GRP94, ATF4, ATF6, and IRE) and the pro-apoptosis gene caspase 3, and the rate of apoptosis. Cd administration markedly decreased the Se content, superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities, and anti-apoptosis gene Bcl-2 expression levels. Co-treatment with Se and Cd obviously reduced the accumulation of Cd, Cd-induced histopathological and ultrastructural changes, oxidative stress, iNOS-NO system activity, ER stress, caspase 3 expression levels, and the rate of apoptosis in the kidneys. These results suggested that Cd exposure caused renal injury and that Se ameliorated Cd-induced nephrotoxicity in chickens.
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Affiliation(s)
- Lili Liu
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, 150040, People's Republic of China
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99
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The Effects of Cadmium at Low Environmental Concentrations on THP-1 Macrophage Apoptosis. Int J Mol Sci 2015; 16:21410-27. [PMID: 26370970 PMCID: PMC4613260 DOI: 10.3390/ijms160921410] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 08/13/2015] [Accepted: 08/19/2015] [Indexed: 01/07/2023] Open
Abstract
Cadmium at environmental concentrations is a risk factor for many diseases, including cardiovascular and neurodegenerative diseases, in which macrophages play an important role. The aim of this study was to evaluate the effects of cadmium at low environmental (nanomolar) concentrations on apoptotic processes in THP-1(acute monocytic leukemia cells line)-derived macrophages, with special focus on mitochondrial events involved. Macrophages were incubated with various cadmium chloride (CdCl2) solutions for 48 h at final concentrations of 5 nM, 20 nM, 200 nM and 2 µM CdCl2. Cell viability was measured using flow cytometry. Flow cytometric measurement (annexin V/FITC (annexin V/fluorescein isothiocyanate) and PI (propidium iodide) double staining) was used to quantify the extent of apoptosis. Fluorescence and confocal microscopy were used for imaging of apoptosis process. Changes in mitochondrial membrane potential were monitored using cytofluorimetry after cell staining with JC-1(5,5′,6,6′-tetrachloro-1,1′,3,3′-tetraethylbenzimidazol-carbocyane iodide) probe. Mitochondrial ROS (reactive oxygen species) levels were measured cytofluorimetrically after incubation of cells with mitochondrial superoxide indicator (MitoSOX) red fluorescent marker. The mRNA expression of Bcl-2 and Bax was analysed with qRT-PCR. Our study demonstrates that cadmium, even at low environmental concentrations, exerts mitochondrial toxicity in THP-1 macrophages. Forty-eight-hour exposure to very low concentrations reduces cell viability and results in cell death by apoptosis and necrosis. The decrease in mitochondrial membrane potential, increased ROS production, increased Bax and decreased Bcl-2 mRNA expression are mitochondrial events involved in cadmium-induced apoptosis.
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100
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Wang K, Fu XY, Fu XT, Hou YJ, Fang J, Zhang S, Yang MF, Li DW, Mao LL, Sun JY, Yuan H, Yang XY, Fan CD, Zhang ZY, Sun BL. DSePA Antagonizes High Glucose-Induced Neurotoxicity: Evidences for DNA Damage-Mediated p53 Phosphorylation and MAPKs and AKT Pathways. Mol Neurobiol 2015; 53:4363-74. [DOI: 10.1007/s12035-015-9373-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Accepted: 07/21/2015] [Indexed: 01/12/2023]
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