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Mainly Dimers and Trimers of Chinese Bayberry Leaves Proanthocyanidins (BLPs) are Utilized by Gut Microbiota: In Vitro Digestion and Fermentation Coupled with Caco-2 Transportation. Molecules 2020; 25:molecules25010184. [PMID: 31906397 PMCID: PMC6982776 DOI: 10.3390/molecules25010184] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 12/19/2019] [Accepted: 12/26/2019] [Indexed: 11/16/2022] Open
Abstract
Chinese bayberry leaf proanthocyanidins (BLPs) are Epigallocatechin gallate (EGCG) oligomers or polymers, which have a lot of health-promoting activity. The activity is closely related to their behavior during in vitro digestion, which remains unknown and hinders further investigations. To clarify the changes of BLPs during gastrointestinal digestion, further research is required. For in vitro digestion, including gastric-intestinal digestion, colon fermentation was applied. Caco-2 monolayer transportation was also applied to investigate the behavior of different BLPs with different degrees of polymerization. The trimers and the tetramers were significantly decreased during in vitro gastric-intestinal digestion resulting in a significant increase in the content of dimers. The dimers and trimers were the main compounds utilized by gut microbiota and they were assumed not to degrade through cleavage of the inflavan bond. The monomers and dimers were able to transport through the Caco-2 monolayer at a rate of 10.45% and 6.4%, respectively.
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Zhang J, Zhang X, Wen C, Duan Y, Zhang H. Lotus seedpod proanthocyanidins protect against neurotoxicity after methyl-mercuric chloride injury. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 183:109560. [PMID: 31421536 DOI: 10.1016/j.ecoenv.2019.109560] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 08/07/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
In the present study, to investigate the prevention mechanism of proanthocyanidins from lotus seedpod (LSPCs) on methyl mercuric chloride (MMC) induced neurotoxicity, neuron/astrocyte cells were co-cultured to simulate the microenvironment in vivo to the greatest extent. The results showed that, compared with MMC group, pretreatment with LSPCs not only improved cell survival rate, decreased the release of lactate dehydrogenase (LDH), decreased the intracellular reactive oxygen species (ROS) level, and prevented the increase of intracellular [Ca2+]i, but also significantly increased the total anti-oxidation capacity (T-AOC) (p<0.05), the levels of glutathione peroxidase (GSH-Px) (p<0.05), glutathione (GSH) (p<0.05), and mitochondrial membrane potential (MMP) (p<0.01). Besides, LSPCs up-regulated the expression of transcriptional factor Nrf2/HO-1 in a concentration-dependent manner. Moreover, LSPCs reduced the expression of Bax protein, significantly increased the expression of Bcl-xl, Bcl-2, β-Ⅲ-Tubulin, SYN, and Arc proteins. The expression of these proteins is mainly regulated by genes and reflects the changes of genes functions. Taken together, these results suggested that LSPCs could enhance cellular antioxidant defense capacity through regulating the activation of Nrf2/HO-1, and involving the inhibition of mitochondria-mediated apoptotic signaling pathway.
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Affiliation(s)
- Jixian Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xuxu Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Chaoting Wen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yuqing Duan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang, 212013, China.
| | - Haihui Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
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53
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Li S, Baiyun R, Lv Z, Li J, Han D, Zhao W, Yu L, Deng N, Liu Z, Zhang Z. Exploring the kidney hazard of exposure to mercuric chloride in mice:Disorder of mitochondrial dynamics induces oxidative stress and results in apoptosis. CHEMOSPHERE 2019; 234:822-829. [PMID: 31247492 DOI: 10.1016/j.chemosphere.2019.06.096] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 05/25/2019] [Accepted: 06/12/2019] [Indexed: 06/09/2023]
Abstract
Mercury is one of the 10 toxic chemicals with major public health concerns. Continuous exposure to low levels of heavy metals including mercury is related to renal injury, especially in children. This study investigated the possible molecular mechanism of inorganic mercury-induced kidney injury. Twenty eight Kunming mice were divided into four groups (n = 7), and treated with 0, 20, 40, 80 mg/L mercuric chloride (HgCl2) in drinking water for 16 weeks respectively. All the HgCl2 exposure mice displayed different degrees of renal injury, which was diagnosed by hematoxylin and eosin stain, biochemical analysis, and ultrastructure examination. The treatment of HgCl2 inhibited the silent information regulator two ortholog 1 (Sirt1)/peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) signaling pathway and resulted the disorder of mitochondrial dynamics, as evidenced by the increasing expression of dynamin-related protein 1 and decreasing expression of mitofusin 2. Meanwhile, HgCl2 inhibited the nuclear factor erythroid 2-related factor 2 (Nrf2) axis. The abnormality of mitochondrial dynamics and the suppression of Nrf2 axis exacerbated oxidative stress, and then induced cell apoptosis. These findings demonstrated that the disorder of mitochondrial dynamics induced by HgCl2 activated oxidative stress, and further resulted in renal apoptosis through inhibiting the Sirt1/PGC-1α signaling pathway and the Nrf2 axis.
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Affiliation(s)
- Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Ruiqi Baiyun
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Zhanjun Lv
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, 600 Changjiang Road, Harbin 150030, China
| | - Jiayi Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Dongxu Han
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Wenyue Zhao
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Lanjie Yu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Ning Deng
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Zhiyan Liu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, 600 Changjiang Road, Harbin 150030, China.
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Procyanidin A2 penetrates L-02 cells and protects against tert-butyl hydroperoxide-induced oxidative stress by activating Nrf2 through JNK and p38 phosphorylation. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.103562] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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55
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Chen C, Lin B, Qi S, He J, Zheng H. Protective Effects of Salidroside on Lead Acetate-induced Oxidative Stress and Hepatotoxicity in Sprague-Dawley Rats. Biol Trace Elem Res 2019; 191:426-434. [PMID: 30666592 DOI: 10.1007/s12011-019-1635-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 01/09/2019] [Indexed: 12/29/2022]
Abstract
Lead has heavy metal toxicity which endangers human and animal health. Salidroside (SDS) is a natural antioxidant that has extensive pharmacological usage. However, its protective effects on lead-induced oxidative stress and hepatotoxicity has not been reported. In this study, we established an animal model to evaluate the protective effects of SDS on chronic lead exposure induced oxidative stress and hepatotoxicity. Forty healthy Sprague-Dawley (SD) rats were assigned to control group (control, animals were provided with distilled water, n = 10); lead acetate-exposed group (PbAc, animals received lead acetate solution of 500 ppm for 60 days, n = 10); low dosage of SDS-treated group (PbAc-SDS-L, lead acetate exposed animals were given intragastric SDS 150 mg/kg body weight for 60 days, n = 10); and high dosage of SDS-treated group (PbAc-SDS-H, lead acetate exposed animals were given intragastric SDS 300 mg/kg body weight for 60 days, n = 10). The results showed that lead exposure caused a significant increase in serum ALP, AST, ALT, and TB (P < 0.01), and these were reversed after treatment with salidroside for 60 days. Compared to the control, the liver GSH, SOD, and GSH-Px were decreased significantly after lead acetate exposure (P < 0.01). However, after treatment with SDS for 60 days, those were dose-dependently reversed. Similarly, MDA was significantly increased in the PbAc group (P < 0.01), and it was significantly decreased in SDS treatment group. Moreover, SDS ameliorated lead-induced congestion and necrosis of hepatocytes. In addition, the RT-PCR and immunohistochemistry results revealed that the PbAc group showed a significant increase in the protein and mRNA of cytochrome P450 2E1 (CYP2E1) and NADPH oxidase 2 (NOX2) in rat liver. Treatment with SDS significantly reversed CYP2E1 and NOX2 expressions in the liver of lead-exposed rats. The results above indicated that SDS has obvious antioxidant activity; it can cure liver injury caused by lead acetate by inhibiting oxidative stress and increasing the antioxidant stress activity, thus improving the liver tissue structure.
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Affiliation(s)
- Chen Chen
- Chinese-German Joint Laboratory for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Chaoyang Road, Hantai District, Hanzhong, 723000, Shaanxi, China
| | - Beibei Lin
- Chinese-German Joint Laboratory for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Chaoyang Road, Hantai District, Hanzhong, 723000, Shaanxi, China
| | - Shanshan Qi
- Vitamin D research institute, Shaanxi University of Technology, Chaoyang Road, Hantai District, Hanzhong, 723000, Shaanxi, China.
- Qinling-Bashan Mountains Bioresources Comprehensive Development, Collaborative Innovation Center, Hanzhong, 723000, Shaanxi, China.
| | - Jia He
- Vitamin D research institute, Shaanxi University of Technology, Chaoyang Road, Hantai District, Hanzhong, 723000, Shaanxi, China
| | - Hongxing Zheng
- Chinese-German Joint Laboratory for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Chaoyang Road, Hantai District, Hanzhong, 723000, Shaanxi, China.
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Han B, Li S, Lv Y, Yang D, Li J, Yang Q, Wu P, Lv Z, Zhang Z. Dietary melatonin attenuates chromium-induced lung injury via activating the Sirt1/Pgc-1α/Nrf2 pathway. Food Funct 2019; 10:5555-5565. [PMID: 31429458 DOI: 10.1039/c9fo01152h] [Citation(s) in RCA: 158] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Exposure to chromium (Cr) causes a number of respiratory diseases, including lung cancer and pulmonary fibrosis. However, there is currently no safe treatment for Cr-induced lung damage. Here, we used in vivo and in vitro approaches to examine the protective effects of melatonin (MEL) on Cr-induced lung injury and to identify the underlying molecular mechanisms. We found that treatment of rats or a mouse lung epithelial cell MLE-12 with MEL attenuated K2Cr2O7-induced lung injury by reducing the production of oxidative stress and inflammatory mediators and inhibiting cell apoptosis. MEL treatment upregulated the expression of silent information regulator 1 (Sirt1), which deacetylated the transcriptional coactivator peroxisome proliferator-activated receptor-γ coactivator-1α (Pgc-1α). In turn, this increased the expression of the transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2) and key anti-oxidant target genes. These results suggest that melatonin attenuates chromium-induced lung injury via activating the Sirt1/Pgc-1α/Nrf2 pathway. Dietary MEL supplement may be a potential new strategy for the treatment of Cr poisoning.
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Affiliation(s)
- Bing Han
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| | - Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| | - Yueying Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| | - Daqian Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| | - Jiayi Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| | - Qingyue Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| | - Pengfei Wu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| | - Zhanjun Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China. and Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin, 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China. and Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin, 150030, China
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57
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Triptolide induces oxidative damage in NRK-52E cells through facilitating Nrf2 degradation by ubiquitination via the GSK-3β/Fyn pathway. Toxicol In Vitro 2019; 58:187-194. [DOI: 10.1016/j.tiv.2019.03.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/20/2019] [Accepted: 03/25/2019] [Indexed: 01/15/2023]
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58
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Zhao X, Jin Y, Li L, Xu L, Tang Z, Qi Y, Yin L, Peng J. MicroRNA-128-3p aggravates doxorubicin-induced liver injury by promoting oxidative stress via targeting Sirtuin-1. Pharmacol Res 2019; 146:104276. [PMID: 31112750 DOI: 10.1016/j.phrs.2019.104276] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 12/31/2022]
Abstract
As one classic anticancer drug, clinical application of Doxorubicin (Dox) is limited due to its side effects. In our previous work, we have investigated the drug targets to treat Dox-induced cardiotoxicity, hepatotoxicity and nephrotoxicity. In this paper, the mechanisms and new drug-target associated with Dox-induced hepatotoxicity were explored. The results showed that Dox markedly inhibited cell viability and cellular respiration, induced cell morphologic change and increased ROS level. Moreover, Dox increased ALT and AST levels, caused pathological damage, increased MDA level and decreased SOD level in mice. Mechanism investigation showed that Dox markedly up-regulated the expression level of miR-128-3p, down-regulated Sirt1 expression level and affected the protein levels of Nrf2, Keap1, Sirt3, NQO1 and HO-1 to cause oxidative stress in liver. Furthermore, double-luciferase reporter assay, and co-transfection test showed that miR-128-3p directly targeted Sirt1. In addition, miR-128-3p mimics in AML-12 cells enhanced Dox-induced oxidative damage via inhibiting cellular respiration, increasing ROS level and mitochondrial superoxide formation. The protein levels of Sirt1, Nrf2, Sirt3, NQO1 and HO-1 in miR-128-3p mimic + Dox group were decreased compared with Dox group. Transfection of miR-128-3p inhibitor weakened Dox-induced oxidative damage via increasing cellular respiration, suppressing cellular ROS level and mitochondrial superoxide formation. The protein levels of Sirt1, Nrf2, Sirt3, NQO1 and HO-1 in miR-128-3p inhibitor + Dox group were increased compared with Dox group. In mice, Dox-induced liver damage was deteriorated by miR-128-3p agomir via increasing the levels of ALT, AST, MDA, and down-regulating the protein levels of Sirt1, Nrf2, Sirt3, NQO1 and HO-1. While, miR-128-3p antagomir alleviated liver injury via decreasing the levels of ALT, AST, MDA, and up-regulating the protein levels of Sirt1, Nrf2, Sirt3, NQO1 and HO-1. Our data showed that miRNA-128-3p aggravated Dox-induced liver injury by promoting oxidative stress via targeting Sirt1, which should be considered as one new drug target to treat Dox-induced liver injury.
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Affiliation(s)
- Xuerong Zhao
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Yue Jin
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Lei Li
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Lina Xu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Zeyao Tang
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Yan Qi
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Lianhong Yin
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China; Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China; National-Local Joint Engineering Research Center for Drug Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China.
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59
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Zhou J, Wang T, Wang H, Jiang Y, Peng S. Obacunone attenuates high glucose-induced oxidative damage in NRK-52E cells by inhibiting the activity of GSK-3β. Biochem Biophys Res Commun 2019; 513:226-233. [DOI: 10.1016/j.bbrc.2019.03.201] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 03/29/2019] [Indexed: 12/26/2022]
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60
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Li J, Zheng X, Ma X, Xu X, Du Y, Lv Q, Li X, Wu Y, Sun H, Yu L, Zhang Z. Melatonin protects against chromium(VI)-induced cardiac injury via activating the AMPK/Nrf2 pathway. J Inorg Biochem 2019; 197:110698. [PMID: 31054488 DOI: 10.1016/j.jinorgbio.2019.110698] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 12/11/2022]
Abstract
Chromium (Cr) threatens health by causing oxidative stress. However, effective therapy for cardiac damage mediated by potassium dichromate (K2Cr2O7) still has not been defined. Melatonin (MT) possesses a number of biological activities. Our study was performed to explore the effect and mechanism of MT on Cr(VI)-induced cardiac damage by conducting both in vitro and in vivo studies. Twenty eight male Wistar rats were randomly assigned to four groups: control, MT (20 mg/kg subcutaneously), K2Cr2O7 (4 mg/kg intraperitoneally), and K2Cr2O7 + MT. We measured biomarkers of oxidative stress and cardiac function, and performed histopathological analysis, assay of terminal deoxynucleotidyl transferase-mediated deoxyuracil nucleoside triphosphate nick end labeling and protein levels, and the viability assay of cultured cardiomyocytes in vitro. Our results showed that MT ameliorated K2Cr2O7-induced oxidative stress, apoptosis, and the release of inflammatory mediators in the rat heart. MT also promoted adenosine monophosphate-activated protein kinase (AMPK) phosphorylation, upregulated expression of proteins that nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1, and nicotinamide adenine dinucleotide phosphatase: quinone-acceptor 1, and inhibited nuclear factor kappa B in the heart of rats exposed to K2Cr2O7. Furthermore, MT increased B-cell lymphoma gene 2 (Bcl-2) and B-cell lymphoma extra large protein levels and decreased cleaved caspase 3, P53, and Bcl-2-associated X protein levels. Furthermore, the experiment in vitro showed that MT increased the cells viability and protein levels of Nrf2 and phosphorylated-AMPK in H9C2 cells treated with K2Cr2O7. Collectively, our results demonstrate that MT protects against Cr-induced cardiac damage via activating the AMPK/Nrf2 pathway.
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Affiliation(s)
- Jiayi Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Xiaoyan Zheng
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Xiangyu Ma
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Xinyue Xu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Yu Du
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Qingjie Lv
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Xuerui Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Yuan Wu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Hongxing Sun
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Lanjie Yu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, 600 Changjiang Road, Harbin 150030, China.
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61
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Liu B, Bing Q, Li S, Han B, Lu J, Baiyun R, Zhang X, Lv Y, Wu H, Zhang Z. Role of A 2B adenosine receptor-dependent adenosine signaling in multi-walled carbon nanotube-triggered lung fibrosis in mice. J Nanobiotechnology 2019; 17:45. [PMID: 30922349 PMCID: PMC6440149 DOI: 10.1186/s12951-019-0478-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 03/15/2019] [Indexed: 12/13/2022] Open
Abstract
Background Multi-walled carbon nanotube (MWCNT)-induced lung fibrosis leads to health concerns in human. However, the mechanisms underlying fibrosis pathogenesis remains unclear. The adenosine (ADO) is produced in response to injury and serves a detrimental role in lung fibrosis. In this study, we aimed to explore the ADO signaling in the progression of lung fibrosis induced by MWCNT. Results MWCNT exposure markedly increased A2B adenosine receptor (A2BAR) expression in the lungs and ADO level in bronchoalveolar lavage fluid, combined with elevation of blood neutrophils, collagen fiber deposition, and activation of myeloperoxidase (MPO) activity in the lungs. Furthermore, MWCNT exposure elicited an activation of transforming growth factor (TGF)-β1 and follistatin-like 1 (Fstl1), leading to fibroblasts recruitment and differentiation into myofibroblasts in the lungs in an A2BAR-dependent manner. Conversely, treatment of the selective A2BAR antagonist CVT-6883 exhibited a significant reduction in levels of fibrosis mediators and efficiently decreased cytotoxicity and inflammatory in MWCNT treated mice. Conclusion Our results reveal that accumulation of extracellular ADO promotes the process of the fibroblast-to-myofibroblast transition via A2BAR/TGF-β1/Fstl1 signaling in MWCNT-induced lung fibrosis.
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Affiliation(s)
- Biying Liu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, 600 Changjiang Road, Harbin, 150030, China
| | - Qizheng Bing
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, 600 Changjiang Road, Harbin, 150030, China
| | - Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, 600 Changjiang Road, Harbin, 150030, China
| | - Bing Han
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Jingjing Lu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Ruiqi Baiyun
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Xiaoya Zhang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Yueying Lv
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Hao Wu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin, 150030, China. .,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, 600 Changjiang Road, Harbin, 150030, China.
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Taranu I, Marin DE, Palade M, Pistol GC, Chedea VS, Gras MA, Rotar C. Assessment of the efficacy of a grape seed waste in counteracting the changes induced by aflatoxin B1 contaminated diet on performance, plasma, liver and intestinal tissues of pigs after weaning. Toxicon 2019; 162:24-31. [PMID: 30849456 DOI: 10.1016/j.toxicon.2019.02.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 02/26/2019] [Accepted: 02/28/2019] [Indexed: 01/24/2023]
Abstract
The aim of this study was to investigate the potential of a grape seed byproduct to mitigate the harmful damage produced by aflatoxin B1 (AFB1) at systemic level in plasma and liver as well as at local level in the gastrointestinal tract in weaned piglets. Twenty four crossbred pigs (TOPIG) were randomly assigned to one of four experimental diets: 1)- control diet (normal compound feed for starter piglets without mycotoxin), 2)- AFB1 diet (compound feed contaminated with 320 ppb pure AFB1), 3)- GS diet (compound feed including 8% of grape seed meal), 4)- AFB1+GS diet (compound feed containing 8% of grape seed meal contaminated with 320 ppb AFB1) for 30 days. The results showed that pigs fed AFB1 diet had altered performance (-25.1%), increased the thiobarbituric substances (TBARS) concentration wile reduced total antioxidant capacity and activity of antioxidant enzymes (CAT, SOD and GPx) in plasma and organs. AFB1 produced a dual effect on inflammatory response by increasing the level of pro-inflammatory cytokines in liver and colon and decreasing these cytokines in duodenum. The inclusion of grape seed in the diet of AFB1 intoxicated pigs enhanced the antioxidant enzymes activity, decreased the pro-inflammatory cytokines and TBARS level and ameliorated the growth performance of AFB1-treated animals. These findings suggest that grape waste is a promising feed source in counteracting the harmful effect of aflatoxin B1.
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Affiliation(s)
- Ionelia Taranu
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov, 077015, Romania.
| | - Daniela Eliza Marin
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov, 077015, Romania
| | - Mihai Palade
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov, 077015, Romania
| | - Gina Cecilia Pistol
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov, 077015, Romania
| | - Veronica Sanda Chedea
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov, 077015, Romania
| | - Mihail Alexandru Gras
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov, 077015, Romania
| | - Catalin Rotar
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, Ilfov, 077015, Romania
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Sha J, Feng X, Chen Y, Zhang H, Li B, Hu X, Fan H. Dexmedetomidine improves acute stress‐induced liver injury in rats by regulating MKP‐1, inhibiting NF‐κB pathway and cell apoptosis. J Cell Physiol 2019; 234:14068-14078. [DOI: 10.1002/jcp.28096] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/07/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Jichen Sha
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine College of Veterinary Medicine Northeast Agricultural University Harbin Heilongjiang China
| | - Xiujing Feng
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine College of Veterinary Medicine Northeast Agricultural University Harbin Heilongjiang China
| | - Yongping Chen
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine College of Veterinary Medicine Northeast Agricultural University Harbin Heilongjiang China
| | - Huayun Zhang
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine College of Veterinary Medicine Northeast Agricultural University Harbin Heilongjiang China
| | - Bei Li
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine College of Veterinary Medicine Northeast Agricultural University Harbin Heilongjiang China
| | - Xueyuan Hu
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine College of Veterinary Medicine Northeast Agricultural University Harbin Heilongjiang China
| | - Honggang Fan
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine College of Veterinary Medicine Northeast Agricultural University Harbin Heilongjiang China
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Baiyun R, Li S, Liu B, Lu J, Lv Y, Xu J, Wu J, Li J, Lv Z, Zhang Z. Luteolin-mediated PI3K/AKT/Nrf2 signaling pathway ameliorates inorganic mercury-induced cardiac injury. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:655-661. [PMID: 29933135 DOI: 10.1016/j.ecoenv.2018.06.046] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 05/31/2018] [Accepted: 06/14/2018] [Indexed: 06/08/2023]
Abstract
Inorganic mercury is a toxic metal of worldwide concern, and causes serious cardiac injury. However, effective treatment for cardiac injury induced by mercuric chloride (HgCl2) has not been fully identified. Luteolin (Lut) is a novel natural antioxidant. This study aimed to investigate the role of Lut on HgCl2-induced cardiac injury. Male Wistar rats were randomly assigned to 4 groups, control, Lut (80 mg/kg intragastrically), HgCl2 (80 mg/L, in drinking water), and HgCl2 + Lut groups. The results indicated that Lut significantly ameliorated cardiac histopathological damage, oxidative stress, and apoptosis induced by HgCl2 in the rat heart. Furthermore, Lut evidently increased levels of phosphatidylinositol 3-kinase (PI3K), protein kinase B (AKT), and nuclear factor-erythroid-2-related factor 2 (Nrf2) and its downstream proteins, and inhibited NF-κB activation in the heart of rats treated by HgCl2. Taken together, our findings suggest that activating PI3K/AKT/Nrf2 signaling pathway is involved in the protective effect of Lut against HgCl2-induced cardiac damage.
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Affiliation(s)
- Ruiqi Baiyun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Biying Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jingjing Lu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China
| | - Yueying Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China
| | - Jianwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jiahui Wu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jiayi Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Zhanjun Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, China.
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Yang D, Li S, Gao L, Lv Z, Bing Q, Lv Q, Zheng X, Li R, Zhang Z. Dietary grape seed procyanidin extract protects against lead-induced heart injury in rats involving endoplasmic reticulum stress inhibition and AKT activation. J Nutr Biochem 2018; 62:43-49. [PMID: 30245182 DOI: 10.1016/j.jnutbio.2018.07.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 07/19/2018] [Accepted: 07/26/2018] [Indexed: 12/18/2022]
Abstract
To investigate the protective role of grape seed procyanidin extract (GSPE) against lead-induced heart injury and the possible molecular mechanism associated with this event, Wistar rats were orally given GSPE (200 mg/kg) daily with or without lead acetate (PbA) (0.5 g/L) in drinking water for 56 d. GSPE attenuated oxidative stress, heart dysfunction, and lead accumulation in lead-exposed rat hearts. Meanwhile, GSPE inhibited the protein kinase RNA-like endoplasmic reticulum (ER) kinase/eukaryotic initiation factor 2α signaling pathway, and promoted protein kinase B (AKT) and glycogen synthase kinase 3β phosphorylation altered by lead, and regulated lead-activated apoptosis and its related signaling pathway. This study suggests that dietary GSPE ameliorates lead-induced heart injury associated with ER stress inhibition and AKT activation. Dietary GSPE may be a protector against lead-induced heart injury and a novel therapy for lead exposure.
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Affiliation(s)
- Daqian Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China
| | - Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China
| | - Li Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China
| | - Zhanjun Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China
| | - Qizheng Bing
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China
| | - Qingjie Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xiaoyan Zheng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Ruobing Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China.
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Grape seed procyanidin extract protects against Pb-induced lung toxicity by activating the AMPK/Nrf2/p62 signaling axis. Food Chem Toxicol 2018; 116:59-69. [DOI: 10.1016/j.fct.2018.03.034] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 03/11/2018] [Accepted: 03/23/2018] [Indexed: 02/07/2023]
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67
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Yang D, Jiang H, Lu J, Lv Y, Baiyun R, Li S, Liu B, Lv Z, Zhang Z. Dietary grape seed proanthocyanidin extract regulates metabolic disturbance in rat liver exposed to lead associated with PPARα signaling pathway. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 237:377-387. [PMID: 29502000 DOI: 10.1016/j.envpol.2018.02.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 02/11/2018] [Accepted: 02/11/2018] [Indexed: 06/08/2023]
Abstract
Lead, a pervasive environmental hazard worldwide, causes a wide range of physiological and biochemical destruction, including metabolic dysfunction. Grape seed proanthocyanidin extract (GSPE) is a natural production with potential metabolic regulation in liver. This study was performed to investigate the protective role of GSPE against lead-induced metabolic dysfunction in liver and elucidate the potential molecular mechanism of this event. Wistar rats received GSPE (200 mg/kg) daily with or without lead acetate (PbA, 0.5 g/L) exposure for 56 d. According to biochemical and histopathologic analysis, GSPE attenuated lead-induced metabolic dysfunction, oxidative stress, and liver dysfunction. Liver gene expression profiling was assessed by RNA sequencing and validated by qRT-PCR. Expression of some genes in peroxisome proliferator-activated receptor alpha (PPARα) signaling pathway was significantly suppressed in PbA group and revived in PbA + GSPE group, which was manifested by Gene Ontology analysis and Kyoto Encyclopedia of Genes and Genomes pathway analysis and validated by western blot analysis. This study supports that dietary GSPE ameliorates lead-induced fatty acids metabolic disturbance in rat liver associated with PPARα signaling pathway, and suggests that dietary GSPE may be a protector against lead-induced metabolic dysfunction and liver injury, providing a novel therapy to protect liver against lead exposure.
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Affiliation(s)
- Daqian Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Huijie Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China
| | - Jingjing Lu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yueying Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Ruiqi Baiyun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China
| | - Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China
| | - Biying Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Zhanjun Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China.
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Rong H, Liang Y, Niu Y. Rosmarinic acid attenuates β-amyloid-induced oxidative stress via Akt/GSK-3β/Fyn-mediated Nrf2 activation in PC12 cells. Free Radic Biol Med 2018; 120:114-123. [PMID: 29555592 DOI: 10.1016/j.freeradbiomed.2018.03.028] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 03/04/2018] [Accepted: 03/15/2018] [Indexed: 12/21/2022]
Abstract
Oxidative stress is an important pathogenic factor in Alzheimer's disease (AD). Recently, nuclear factor E2-related factor 2 (Nrf2) has emerged as a master regulator for the endogenous antioxidant response, and thus represents an attractive therapeutic target against AD. The aim of this study is to test the hypothesis that rosmarinic acid (RosA) attenuates amyloid-β (Aβ)-evoked oxidative stress through activating Nrf2-inducible cellular antioxidant defense system. Here, we reported that RosA attenuated Aβ-induced cellular reactive oxygen species (ROS) generation and lipid hydroperoxides (LPO). Interestingly, knockdown of Nrf2 by plasmid-based short hairpin RNA (shRNA) abrogated, at least in part, RosA-mediated neuroprotection in Aβ-challenged PC12 cells. Mechanistically, RosA enhanced the nuclear translocation of Nrf2 and binding to antioxidant response element (ARE) core element but did not induced Nrf2 transcription. Simultaneously, RosA induced a set of Nrf2 downstream target genes encoding phase-II antioxidant enzymes. Furthermore, RosA enhanced protein kinase B (Akt) phosphorylation, glycogen synthase kinase-3β (GSK-3β) phosphorylation at Ser9, and Fyn phosphorylation. Noteworthy, pharmacological inhibition or gene knockdown studies demonstrated that Akt locate upstream of GSK-3β and regulate Nrf2 through Fyn in the context of PC12 cells pre-incubated with RosA following exposed to Aβ. Conversely, the antioxidant effects of RosA could be blocked by Akt inhibitors LY294002, GSK-3β inhibitor LiCl, Nrf2 shRNA, or Fyn shRNA in Aβ-challenged PC12 cells. Consequently, the antioxidant effects of RosA are mediated predominantly by Akt/GSK-3β/Fyn pathway through increased activity of Nrf2. These results suggest, although do not prove, that RosA can be a promising candidate for neuroprotective treatment of AD.
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Affiliation(s)
- Hua Rong
- The Institute of Medicine, Qiqihar Medical University, 333 BuKui Street, JianHua District, Qiqihar 161006, China
| | - Yini Liang
- The Institute of Medicine, Qiqihar Medical University, 333 BuKui Street, JianHua District, Qiqihar 161006, China
| | - Yingcai Niu
- The Institute of Medicine, Qiqihar Medical University, 333 BuKui Street, JianHua District, Qiqihar 161006, China.
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Liu B, Yu H, Baiyun R, Lu J, Li S, Bing Q, Zhang X, Zhang Z. Protective effects of dietary luteolin against mercuric chloride-induced lung injury in mice: Involvement of AKT/Nrf2 and NF-κB pathways. Food Chem Toxicol 2018; 113:296-302. [PMID: 29421646 DOI: 10.1016/j.fct.2018.02.003] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 02/01/2018] [Accepted: 02/03/2018] [Indexed: 12/29/2022]
Abstract
Food-derived compound luteolin possesses multiple pharmacological activities. Accordingly, we focused on exploring the protective effects of luteolin (100 mg/kg) against mercuric chloride (HgCl2) (5 mg/kg) stimulated lung injury and the molecular mechanisms of lung protection effects in mouse. The influence of luteolin on histologic changes, oxidative stress, proinflammatory cytokine production, neutrophil activation, and apoptosis were assayed in HgCl2-induced lung injury. Luteolin administration attenuated pulmonary histologic conditions and apoptotic change. The protective effects of luteolin might be attributed to the reduction of myeloperoxidase, inflammatory cytokines, malondialdehyde, and the increase of superoxide dismutase and glutathione. Luteolin promoted protein kinase B (AKT) phosphorylation and translocation of nuclear factor erythroid 2-related factor 2 (Nrf2) into nucleus, and inhibited activation of nuclear factor kappa B (NF-κB) in HgCl2-induced lung injury. Taken together, dietary luteolin may be an effective candidate for treatment of HgCl2-induced lung injury by preventing NF-κB activation and activating AKT/Nrf2 pathway.
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Affiliation(s)
- Biying Liu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Hongxiang Yu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Ruiqi Baiyun
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Jingjing Lu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Qizheng Bing
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Xiaoya Zhang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, 600 Changjiang Road, Harbin 150030, China.
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