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Hong W, Liu Y, Liang J, Jiang C, Yu M, Sun W, Huang B, Dong N, Kang L, Tang Y. Molecular Mechanisms of Selenium Mitigating Lead Toxicity in Chickens via Mitochondrial Pathway: Selenoproteins, Oxidative Stress, HSPs, and Apoptosis. TOXICS 2023; 11:734. [PMID: 37755744 PMCID: PMC10536545 DOI: 10.3390/toxics11090734] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/19/2023] [Accepted: 08/24/2023] [Indexed: 09/28/2023]
Abstract
Lead (Pb), a hazardous heavy metal, can damage the health of organisms. However, it is not clear whether Pb can damage chicken cerebellums and thalami. Selenium (Se), an essential nutrient for organisms, has a palliative effect on Pb poisoning in chickens. In our experiment, a model of chickens treated with Pb and Se alone and in combination was established to investigate the molecular mechanism of Se alleviating Pb-caused damage in both chicken cerebellums and thalami. Our morphological results indicated that Pb caused apoptotic lesions, such as mitochondrial and nuclear damage. Further, the anti-apoptotic gene Bcl-2 decreased; on the contrary, four pro-apoptotic genes (p53, Bax, Cyt c, and Caspase-3) increased under Pb treatment, meaning that Pb caused apoptosis via the p53-Cyt c-Caspase-3 pathway. Furthermore, we further demonstrated that Pb elevated four HSPs (HSP27, HSP40, HSP70, and HSP90), as well as HSP70 took part in the molecular mechanism of Pb-caused apoptosis. In addition, we found that Pb exposure led to oxidative stress via up-regulating the oxidant H2O2 and down-regulating four antioxidants (CAT, SOD, GST, and GPx). Moreover, Pb decreased three Se-containing factors (Txnrd1, Txnrd2, and Txnrd3), further confirming that Pb caused oxidative stress. Interestingly, Se supplementation reversed the above changes caused by Pb and alleviated Pb-induced oxidative stress and apoptosis. A time dependency was demonstrated for Bcl-2, Bax, and Cyt c in the cerebellums, as well as CAT, GPx, and p53 in the thalami of Pb-exposed chickens. HSP70 in cerebellums and HSP27 in thalami were more sensitive than those in thalami and cerebellums, respectively, under Pb exposure. Pb-induced apoptosis of thalami was more severe than cerebellums. In conclusion, after Pb treatment, Txnrds mediated oxidative stress, oxidative stress up-regulated HSPs, and finally, HSP70 triggered apoptosis. Se supplementation antagonized Pb-induced oxidative stress and apoptosis via the mitochondrial pathway and selenoproteins in chicken cerebellums and thalami. This study provides new information for the mechanism of environmental pollutant poisoning and the detoxification of Se on abiotic stress.
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Affiliation(s)
- Weichen Hong
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Yuhao Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Jiatian Liang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Chunyu Jiang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Meijin Yu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Wei Sun
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Bin Huang
- Electrical and Information Engineering College, Jilin Agricultural Science and Technology University, Jilin City 132101, China
| | - Na Dong
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Lu Kang
- Institute of Agricultural Quality Standards and Testing Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - You Tang
- Electrical and Information Engineering College, Jilin Agricultural Science and Technology University, Jilin City 132101, China
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Patnaik S, Nathan S, Kar B, Gregoric ID, Li YP. The Role of Extracellular Heat Shock Proteins in Cardiovascular Diseases. Biomedicines 2023; 11:1557. [PMID: 37371652 DOI: 10.3390/biomedicines11061557] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
In the early 1960s, heat shock proteins (HSPs) were first identified as vital intracellular proteinaceous components that help in stress physiology and reprogram the cellular responses to enable the organism's survival. By the early 1990s, HSPs were detected in extracellular spaces and found to activate gamma-delta T-lymphocytes. Subsequent investigations identified their association with varied disease conditions, including autoimmune disorders, diabetes, cancer, hepatic, pancreatic, and renal disorders, and cachexia. In cardiology, extracellular HSPs play a definite, but still unclear, role in atherosclerosis, acute coronary syndromes, and heart failure. The possibility of HSP-targeted novel molecular therapeutics has generated much interest and hope in recent years. In this review, we discuss the role of Extracellular Heat Shock Proteins (Ec-HSPs) in various disease states, with a particular focus on cardiovascular diseases.
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Affiliation(s)
- Soumya Patnaik
- Division of Cardiology, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Sriram Nathan
- Department of Advanced Cardiopulmonary Therapies and Transplantation, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Biswajit Kar
- Department of Advanced Cardiopulmonary Therapies and Transplantation, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Igor D Gregoric
- Department of Advanced Cardiopulmonary Therapies and Transplantation, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Yi-Ping Li
- Division of Integrative Biology and Pharmacology, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
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3
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Xu H, Miao XM, Wang WB, Wang G, Li Y. Transcriptome analysis reveals the early resistance of zebrafish larvae to oxidative stress. FISH PHYSIOLOGY AND BIOCHEMISTRY 2022; 48:1075-1089. [PMID: 35838812 DOI: 10.1007/s10695-022-01100-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
Oxidative stress is one of most common environmental stresses encountered by fish, especially during their fragile larval stage. More and more studies are aimed at understanding the antioxidant defense mechanism of fish larvae. Herein we characterized the early resistance of zebrafish larvae to oxidative stress and investigated the underlying transcriptional regulations using RNA-seq. We found that pre-exposure of zebrafish larvae to 2 mM H2O2 for 1 or 3 h significantly improved their survival under higher doses of H2O2 (3 mM), suggesting the antioxidant defenses of zebrafish larvae were rapidly built under pre-exposure of H2O2. Comparative transcriptome analysis showed that 310 (185 up and 125 down) and 512 (331 up and 181 down) differentially expressed genes were generated after 1 and 3 h of pre-exposure, respectively. KEGG enrichment analysis revealed that protein processing in endoplasmic reticulum is a highly enriched pathway; multiple genes (e.g., hsp70.1, hsp70.2, and hsp90aa1.2) encoding heat shock proteins in this pathway were sharply upregulated presumably to correct protein misfolding and maintaining the cellular normal functions during oxidative stress. More importantly, the Keap1/Nrf2 system-mediated detoxification enzyme system was significantly activated, which regulates the upregulation of target genes (e.g., gstp1, gsr, and prdx1) to scavenger reactive oxygen species, thereby defending against apoptosis. In addition, the MAPK, as a transmitter of stress signals, was activated, which may play an important role in activating antioxidant system in the early stages of oxidative stress. Altogether, these findings demonstrate that zebrafish larvae rapidly establish resistance to oxidative stress, and this involves changes in protein processing, stress signal transmission, and the activation of detoxification pathways.
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Affiliation(s)
- Hao Xu
- College of Fisheries, Southwest University, Chongqing, 400715, China
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, 400715, China
| | - Xiao-Min Miao
- College of Fisheries, Southwest University, Chongqing, 400715, China
| | - Wen-Bo Wang
- College of Fisheries, Southwest University, Chongqing, 400715, China
| | - Guo Wang
- College of Fisheries, Southwest University, Chongqing, 400715, China
| | - Yun Li
- College of Fisheries, Southwest University, Chongqing, 400715, China.
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, Southwest University, Chongqing, 400715, China.
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4
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Szyller J, Kozakiewicz M, Siermontowski P, Kaczerska D. Oxidative Stress, HSP70/HSP90 and eNOS/iNOS Serum Levels in Professional Divers during Hyperbaric Exposition. Antioxidants (Basel) 2022; 11:antiox11051008. [PMID: 35624872 PMCID: PMC9137907 DOI: 10.3390/antiox11051008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/10/2022] [Accepted: 05/18/2022] [Indexed: 12/13/2022] Open
Abstract
Heat shock proteins (HSPs) have protective effects against oxidative stress and decompression sickness. Nitric oxide may reduce bubble formation during decompression and its activity is regulated by HSPs. A simulated dive can cause the HSP response. The aim of this study was to describe the effect of simulated dives on the antioxidant system, HSPs, and nitric oxide synthase response and demonste the relationship between the concentration of HSPs and the intensification of oxidative stress. A total of 20 healthy professional divers took part in training, consisting of simulated dry dives in a hyperbaric chamber and split into experiment I (30 m exposure, 400 kPa) and experiment II (60 m exposure, 700 kPa) over 24 h. The activities of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) and the concentrations of malondialdehyde (MDA), heat shock protein 70 (HSP70), heat shock protein 90 (HSP90), endothelial (eNOS) and inducible (iNOS) nitric oxide synthase were measured. Increases in the activity of SOD and MDA concentration were demonstrated. The activity of GPx depended on the dive profile. The HSP70 serum level in both experiments was significantly lower after the dives. The mean HSP90 level was significantly higher after the simulated dive at 60 m. A significant relationship between HSP concentration and SOD/GPx activity was demonstrated. eNOS concentration increased after 60 m exposure. No change in iNOS concentration was observed. In conclusions, the simulated dive significantly affected the antioxidant system, heat shock protein expression and nitric oxide synthase; however, the changes depend on the diving conditions. There is a relationship between the expression of HSPs and the intensity of oxidative stress.
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Affiliation(s)
- Jakub Szyller
- Division of Clinical Chemistry and Laboratory Hematology, Department of Medical Laboratory Diagnostics, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A Str., 50-556 Wroclaw, Poland
- Correspondence:
| | - Mariusz Kozakiewicz
- Division of Biochemistry and Biogerontology, Department of Geriatrics, Faculty of Health Sciences, L. Rydygier Collegium Medicum, Dębowa 3 Str., 85-626 Bydgoszcz, Poland;
| | - Piotr Siermontowski
- Department of Underwater Works Technology, Faculty of Mechanical and Electrical Engineering, Polish Naval Academy, Śmidowicza 69 Str., 81-127 Gdynia, Poland;
| | - Dorota Kaczerska
- Department of Physiotherapy and Health Sciences, Faculty of Dietetics, Gdańsk College of Health, Pelplińska 7 Str., 80-335 Gdańsk, Poland;
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Huang J, Chai X, Wu Y, Hou Y, Li C, Xue Y, Pan J, Zhao Y, Su A, Zhu X, Zhao S. β-Hydroxybutyric acid attenuates heat stress-induced neuroinflammation via inhibiting TLR4/p38 MAPK and NF-κB pathways in the hippocampus. FASEB J 2022; 36:e22264. [PMID: 35333405 DOI: 10.1096/fj.202101469rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 02/23/2022] [Accepted: 03/08/2022] [Indexed: 11/11/2022]
Abstract
Heat stress causes many pathophysiological responses in the brain, including neuroinflammation and cognitive deficits. β-Hydroxybutyric acid (BHBA) has been shown to have neuroprotective effects against inflammation induced by lipopolysaccharide. The aim of the present study was to evaluate the effects of BHBA on neuroinflammation induced by heat stress, as well as the underlying mechanisms. Mice were pretreated with vehicle, BHBA or minocycline (positive control group) and followed by heat exposure (43°C) for 15 min for 14 days. In mice subjected to heat stress, we found that treatment with BHBA or minocycline significantly decreased the level of serum cortisol, the expressions of heat shock protein 70 (HSP70), and the density of c-Fos+ cells in the hippocampus. Surprisingly, the ethological tests revealed that heat stress led to cognitive dysfunctions and could be alleviated by BHBA and minocycline administration. Further investigation showed that BHBA and minocycline significantly attenuated the activation of microglia and astrocyte induced by heat stress. Pro-inflammatory cytokines were attenuated in the hippocampus by BHBA and minocycline treatment. Importantly, compared with the heat stress group, mice in the BHBA treatment group and positive control group experienced a decrease in the expressions of toll-like receptor 4 (TLR4), phospho-p38 (p-p38), and nuclear factor kappa B (NF-κB). Our results elucidated that BHBA inhibits neuroinflammation induced by heat stress by suppressing the activation of microglia and astrocyte, and modulating TLR4/p38 MAPK and NF-κB pathways. This study provides new evidence that BHBA is a potential strategy for protecting animals from heat stress.
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Affiliation(s)
- Jian Huang
- College of Veterinary Medicine, Northwest A & F University, Yangling, P.R. China
| | - Xuejun Chai
- Department of Basic Medicine, Xi'an Medical University, Xi'an, P.R. China
| | - Yongji Wu
- College of Veterinary Medicine, Northwest A & F University, Yangling, P.R. China
| | - Yan Hou
- College of Veterinary Medicine, Northwest A & F University, Yangling, P.R. China
| | - Cixia Li
- College of Veterinary Medicine, Northwest A & F University, Yangling, P.R. China
| | - Yuhuan Xue
- College of Veterinary Medicine, Northwest A & F University, Yangling, P.R. China
| | - Jiarong Pan
- College of Veterinary Medicine, Northwest A & F University, Yangling, P.R. China
| | - Yongkang Zhao
- College of Veterinary Medicine, Northwest A & F University, Yangling, P.R. China
| | - Aimin Su
- College of Life Sciences, Northwest A & F University, Yangling, P.R. China
| | - Xiaoyan Zhu
- College of Veterinary Medicine, Northwest A & F University, Yangling, P.R. China
| | - Shanting Zhao
- College of Veterinary Medicine, Northwest A & F University, Yangling, P.R. China
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Abstract
Cellular redox homeostasis is precisely balanced by generation and elimination of reactive oxygen species (ROS). ROS are not only capable of causing oxidation of proteins, lipids and DNA to damage cells but can also act as signaling molecules to modulate transcription factors and epigenetic pathways that determine cell survival and death. Hsp70 proteins are central hubs for proteostasis and are important factors to ameliorate damage from different kinds of stress including oxidative stress. Hsp70 members often participate in different cellular signaling pathways via their clients and cochaperones. ROS can directly cause oxidative cysteine modifications of Hsp70 members to alter their structure and chaperone activity, resulting in changes in the interactions between Hsp70 and their clients or cochaperones, which can then transfer redox signals to Hsp70-related signaling pathways. On the other hand, ROS also activate some redox-related signaling pathways to indirectly modulate Hsp70 activity and expression. Post-translational modifications including phosphorylation together with elevated Hsp70 expression can expand the capacity of Hsp70 to deal with ROS-damaged proteins and support antioxidant enzymes. Knowledge about the response and role of Hsp70 in redox homeostasis will facilitate our understanding of the cellular knock-on effects of inhibitors targeting Hsp70 and the mechanisms of redox-related diseases and aging.
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Liu Y, Yu M, Cui J, Du Y, Teng X, Zhang Z. Heat shock proteins took part in oxidative stress-mediated inflammatory injury via NF-κB pathway in excess manganese-treated chicken livers. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112833. [PMID: 34600291 DOI: 10.1016/j.ecoenv.2021.112833] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/18/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Manganese (Mn) is an essential metal in humans and animals. However, excess Mn entered environment due to the wide application of Mn in industry and agriculture, and became an environmental pollutant. Exposure to high doses of Mn is toxic to humans and animals (including chickens). Liver is a target organ of Mn poisoning. Nevertheless, there were few studies on whether Mn poisoning damages chicken livers and poisoning mechanism of Mn in chicken livers. Herein, the aim of this study was to explore if oxidative stress, heat shock proteins (HSPs), and inflammatory response were involved in the mechanism of Mn poisoning-caused damage in chicken livers. A chicken Mn poisoning model was established. One hundred and eighty chickens were randomly divided into one control group (containing 127.88 mg Mn kg-1) and three Mn-treated groups (containing 600, 900, and 1800 mg Mn kg-1, respectively). Histomorphological structure was observed via microstructure and ultrastructure. Spectrophotometry was used to detect total antioxidant capacity (T-AOC) and inducible nitric oxide synthase (iNOS) activity, as well as nitric oxide (NO) content. And qRT-PCR was performed to measure mRNA expression of inflammatory genes (nuclear factor kappa B (NF-κB), tumor necrosis factor α (TNF-α), cyclooxygenase-2 (COX-2), prostaglandin E2 (PGE2), and iNOS) and heat shock protein (HSP) genes (HSP27, HSP40, HSP60, HSP70, and HSP90). Multivariate correlation analysis, principal component analysis, and cluster analysis were used to demonstrate the reliability of mechanism of Mn poisoning in our experiment. The results indicated that excess Mn led to inflammatory injury at three contents and three time points. Meanwhile, we found that NO content, iNOS activity, and NF-κB, TNF-α, COX-2, PGE2, and iNOS mRNA expression increased after Mn treatment, meaning that exposure to Mn induced inflammatory response via NF-κB pathway in chicken livers. Moreover, excess Mn decreased T-AOC activity, indicating that Mn exposure caused oxidative stress. Furthermore, mRNA expression of above five HSP genes was up-regulated during Mn exposure. Oxidative stress triggered the increase of HSPs and the increase of HSPs mediated inflammatory response induced by Mn. In addition, there were time- and dose-dependent effects on Mn-caused chicken liver inflammatory injury. Taken together, HSPs participated in oxidative stress-mediated inflammatory damage caused by excess Mn in chicken livers via NF-κB pathway. For the first time, we found that oxidative stress can trigger HSP70 and HSPs can trigger poisoning-caused inflammatory damage, which needs to be further explored. This study provided a new insight into environmental pollutants and a reference for further study on molecular mechanisms of poisoning.
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Affiliation(s)
- Yuhao Liu
- School of Animal Science, Inner Mongolia Agricultural University, Hohhot City 010018, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - Meijin Yu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - Jiawen Cui
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - Ye Du
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - Xiaohua Teng
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China; Electrical and Information Engineering College, Jilin Agricultural Science and Technology University, Jilin 132101, PR China.
| | - Zuozhong Zhang
- School of Animal Science, Inner Mongolia Agricultural University, Hohhot City 010018, PR China.
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Li Z, Ali Shah SW, Zhou Q, Yin X, Teng X. The contributions of miR-25-3p, oxidative stress, and heat shock protein in a complex mechanism of autophagy caused by pollutant cadmium in common carp (Cyprinus carpio L.) hepatopancreas. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117554. [PMID: 34174664 DOI: 10.1016/j.envpol.2021.117554] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 05/27/2021] [Accepted: 06/05/2021] [Indexed: 06/13/2023]
Abstract
Cadmium (Cd) is a toxic heavy metal that can be discharged into water environment through industrial activities, threatening the health of aquatic organisms and humans. MicroRNA (miRNA) plays an important role in the process of autophagy. The purpose of this experiment was to study the mechanism of Cd-induced autophagy in common carp hepatopancreas. We established a Cd poisoning model of common carp and explored ultrastructure, two oxidation indicators, three antioxidant indicators, miR-25-3p, two heat shock proteins (Hsps), and nine autophagy-related genes. The results confirmed that deleterious effect of Cd caused the injury of hepatopancreas and the appearance of hepatopancreas autophagic cells in common carp. At the same time, Cd exposure increased the contents of hydrogen peroxide (H2O2) and malonaldehyde (MDA), and decreased the activities of catalase (CAT), superoxide dismutase (SOD), and total antioxidative capacity (T-AOC), meaning that Cd caused oxidative stress via the imbalance between peroxide level and antioxidant capacity. Moreover, exposure to Cd increased mRNA expression of microtubule associated protein-1 light chain 3 beta (LC3-II), Dynein, Beclin 1, autophagy-related gene 5 (Atg5), and autophagy-related gene 12 (Atg12); and decreased mRNA expression of mechanistic target of rapamycin kinase (mTOR), indicating that excess Cd caused autophagy, and AMPK/mTOR/ULK1 signaling pathway took part in autophagy induced by Cd in common carp hepatopancreas. Furthermore, Cd down-regulated miR-25-3p and up-regulated its three target genes (AMPK, ULK1 as well as PTEN), suggesting that miR-25-3p mediated autophagy induced by Cd. In addition, we found that Hsps were activated via the up-regulation of Hsp70 and Hsp90. Moreover, oxidative stress mediated autophagy via Hsps in Cd-treated common carp hepatopancreas and Cd-induced autophagy was time dependent. In summary, miR-25-3p, oxidative stress, and Hsps participated in autophagy caused by Cd in common carp hepatopancreas. This study provided a new idea for the mechanism of Cd-induced autophagy in hepatopancreas.
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Affiliation(s)
- Zhuo Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Syed Waqas Ali Shah
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Qin Zhou
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Xiujie Yin
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Xiaohua Teng
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China; Electrical and Information Engineering College, Jilin Agricultural Science and Technology University, Jilin, 132101, People's Republic of China.
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Lv H, Yuan X, Zhang J, Lu T, Yao J, Zheng J, Cai J, Xiao J, Chen H, Xie S, Ruan Y, An Y, Sui X, Yi H. Heat shock preconditioning mesenchymal stem cells attenuate acute lung injury via reducing NLRP3 inflammasome activation in macrophages. Stem Cell Res Ther 2021; 12:290. [PMID: 34001255 PMCID: PMC8127288 DOI: 10.1186/s13287-021-02328-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Acute lung injury (ALI) remains a common cause of morbidity and mortality worldwide, and to date, there is no effective treatment for ALI. Previous studies have revealed that topical administration of mesenchymal stem cells (MSCs) can attenuate the pathological changes in experimental acute lung injury. Heat shock (HS) pretreatment has been identified as a method to enhance the survival and function of cells. The present study aimed to assess whether HS-pretreated MSCs could enhance immunomodulation and recovery from ALI. MATERIALS AND METHODS HS pretreatment was performed at 42 °C for 1 h, and changes in biological characteristics and secretion functions were detected. In an in vivo mouse model of ALI, we intranasally administered pretreated umbilical cord-derived MSCs (UC-MSCs), confirmed their therapeutic effects, and detected the phenotypes of the macrophages in bronchoalveolar lavage fluid (BALF). To elucidate the underlying mechanisms, we cocultured pretreated UC-MSCs with macrophages in vitro, and the expression levels of inflammasome-related proteins in the macrophages were assessed. RESULTS The data showed that UC-MSCs did not exhibit significant changes in viability or biological characteristics after HS pretreatment. The administration of HS-pretreated UC-MSCs to the ALI model improved the pathological changes and lung damage-related indexes, reduced the proinflammatory cytokine levels, and modulated the M1/M2 macrophage balance. Mechanistically, both the in vivo and in vitro studies demonstrated that HS pretreatment enhanced the protein level of HSP70 in UC-MSCs, which negatively modulated NLR family pyrin domain containing 3 (NLRP3) inflammasome activation in alveolar macrophages. These effects were partially reversed by knocking down HSP70 expression. CONCLUSION HS pretreatment can enhance the beneficial effects of UC-MSCs in inhibiting NLRP3 inflammasome activation in macrophages during ALI. The mechanism may be related to the upregulated expression of HSP70.
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Affiliation(s)
- Haijin Lv
- Department of Surgical Intensive Care Unit, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, Guangdong Province, China.,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Xiaofeng Yuan
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of General Intensive Care Unit, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jiebin Zhang
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Tongyu Lu
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jia Yao
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jun Zheng
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jianye Cai
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jiaqi Xiao
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Haitian Chen
- Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Shujuan Xie
- Vaccine Research Institute of Sun Yat-sen University, Biotherapy Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ying Ruan
- Department of Thyroid and Breast Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Yuling An
- Department of Surgical Intensive Care Unit, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, Guangdong Province, China. .,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.
| | - Xin Sui
- Department of Surgical Intensive Care Unit, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, Guangdong Province, China. .,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.
| | - Huimin Yi
- Department of Surgical Intensive Care Unit, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, Guangdong Province, China. .,Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.
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Huang R, Zhang C, Wang X, Hu H. PPARγ in Ischemia-Reperfusion Injury: Overview of the Biology and Therapy. Front Pharmacol 2021; 12:600618. [PMID: 33995008 PMCID: PMC8117354 DOI: 10.3389/fphar.2021.600618] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 03/11/2021] [Indexed: 12/12/2022] Open
Abstract
Ischemia-reperfusion injury (IRI) is a complex pathophysiological process that is often characterized as a blood circulation disorder caused due to various factors (such as traumatic shock, surgery, organ transplantation, burn, and thrombus). Severe metabolic dysregulation and tissue structure destruction are observed upon restoration of blood flow to the ischemic tissue. Theoretically, IRI can occur in various tissues and organs, including the kidney, liver, myocardium, and brain, among others. The advances made in research regarding restoring tissue perfusion in ischemic areas have been inadequate with regard to decreasing the mortality and infarct size associated with IRI. Hence, the clinical treatment of patients with severe IRI remains a thorny issue. Peroxisome proliferator-activated receptor γ (PPARγ) is a member of a superfamily of nuclear transcription factors activated by agonists and is a promising therapeutic target for ameliorating IRI. Therefore, this review focuses on the role of PPARγ in IRI. The protective effects of PPARγ, such as attenuating oxidative stress, inhibiting inflammatory responses, and antagonizing apoptosis, are described, envisaging certain therapeutic perspectives.
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Affiliation(s)
- Ruizhen Huang
- Department of Urology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chiyu Zhang
- Department of Urology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xing Wang
- Department of Urology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Honglin Hu
- Department of Urology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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11
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Heat Shock Proteins in Oxidative Stress and Ischemia/Reperfusion Injury and Benefits from Physical Exercises: A Review to the Current Knowledge. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6678457. [PMID: 33603951 PMCID: PMC7868165 DOI: 10.1155/2021/6678457] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/14/2021] [Accepted: 01/25/2021] [Indexed: 02/07/2023]
Abstract
Heat shock proteins (HSPs) are molecular chaperones produced in response to oxidative stress (OS). These proteins are involved in the folding of newly synthesized proteins and refolding of damaged or misfolded proteins. Recent studies have been focused on the regulatory role of HSPs in OS and ischemia/reperfusion injury (I/R) where reactive oxygen species (ROS) play a major role. ROS perform many functions, including cell signaling. Unfortunately, they are also the cause of pathological processes leading to various diseases. Biological pathways such as p38 MAPK, HSP70 and Akt/GSK-3β/eNOS, HSP70, JAK2/STAT3 or PI3K/Akt/HSP70, and HSF1/Nrf2-Keap1 are considered in the relationship between HSP and OS. New pathophysiological mechanisms involving ROS are being discovered and described the protein network of HSP interactions. Understanding of the mechanisms involved, e.g., in I/R, is important to the development of treatment methods. HSPs are multifunctional proteins because they closely interact with the antioxidant and the nitric oxide generation systems, such as HSP70/HSP90/NOS. A deficiency or excess of antioxidants modulates the activation of HSF and subsequent HSP biosynthesis. It is well known that HSPs are involved in the regulation of several redox processes and play an important role in protein-protein interactions. The latest research focuses on determining the role of HSPs in OS, their antioxidant activity, and the possibility of using HSPs in the treatment of I/R consequences. Physical exercises are important in patients with cardiovascular diseases, as they affect the expression of HSPs and the development of OS.
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13
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Madaeva IM, Kurashova NA, Semenova NV, Kolesnikova LI, Kolesnikov SI. Association Of Nocturnal Intermittent Hypoxia With Heat Shock Protein 70 In Patients With Obstructive Sleep Apnea: A Pilot Study. RUSSIAN OPEN MEDICAL JOURNAL 2020. [DOI: 10.15275/rusomj.2020.0401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Introduction — Nocturnal intermittent hypoxia in obstructive sleep apnea (OSA) causes cellular stress and consequent change in inducible heat shock protein 70 (HSP70) level. Thus, the objective of this study was to determine the relationship among nocturnal hypoxia and the serum HSP70 level in patients with severe OSA. Material and Methods — The study involved 34 patients with a clinical diagnosis of moderate to severe OSA (24 men and 10 women). Patients without OSA (10 men and 5 women) were included as a control group. The groups were similar in age. The polysomnographic monitoring was carried by standart methodology. Blood sampling for determining the HSP70 level was carried out between 8:00 and 9:00 am after polysomnographic monitoring. Results — The results of this study demonstrated a high apnea/hypopnea index (AHI), which determined the OSA severity and decreased the blood oxygen saturation (SaO2) (p<0.05). Sleep fragmentation in OSA patients confirmed an increase in respiratory arousal index (ArI). The HSP70 level significantly increased in OSA patients compared with the control group. Correlation analysis showed a positive relationship between HSP70 and AHI (R=0.5) in patients with OSAS, as well as a negative relationship between HSP70 and SaO2 (R=-0.3). Conclusion — Our results demonstrated a high level of HSP70 in patients with severe OSA syndrome vs. those without it. In OSA patients, a direct correlation was found between the HSP70 level and AHI, as well as an inverse correlation between the AHI level and SaO2. These findings suggested an association between the level of inducible HSP70 and nocturnal hypoxia in OSA patients.
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Affiliation(s)
- Irina M. Madaeva
- Scientific Сentre for Family Health and Human Reproduction Problems
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14
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Zhang C, Lu K, Wang J, Qian Q, Yuan X, Pu C. Molecular cloning, expression HSP70 and its response to bacterial challenge and heat stress in Microptenus salmoides. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:2389-2402. [PMID: 33029752 DOI: 10.1007/s10695-020-00883-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
The gene encoding HSP70 was isolated from Microptenus salmoides by homologous cloning and rapid amplification of cDNA ends (RACE). The HSP70 transcripts were 2116 bp long and contained 1953 open reading frames encoding proteins of 650 amino acids with a molecular mass of 71.2 kDa and theoretical isoelectric point of 5.22. The qRT-PCR analysis showed that the HSP70 gene was differentially expressed in various tissues under normal conditions, and the highest HSP70 level was observed in the spleen and the lowest levels in the muscle and heart. The clear time-dependent expression level of HSP70 was observed after bacterial challenge and heat stress. A significant increase in HSP70 expression level was detected and reached a maximum at 3 h and 6 h in liver, spleens and gill tissues after Aeromonas hydrophila infection and heat stress, respectively (P < 0.05). As time progressed, the expression of HSP70 transcript was downregulated and mostly dropped back to the original level at 48 h. The concentration of cortisol, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) increased as the time of stress progressed, with the highest level found on 3 h and later declined rapidly and reached to the control levels at the 48 h. Those results suggested that HSP70 was involved in the immune response to bacterial challenge and heat stress. The cloning and expression analysis of the HSP70 provide theoretical basis to further study the mechanism of anti-adverseness in Microptenus salmoides.
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Affiliation(s)
- Chunnuan Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China.
| | - Kangle Lu
- Laboratory of Aquatic Animal Nutrition and Physiology, Fisheries College, Jimei University, Xiamen, 361021, China
| | - Junhui Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China
| | - Qi Qian
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China
| | - Xiaoyu Yuan
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China
| | - Changchang Pu
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China
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15
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Kurashova NA, Madaeva IM, Kolesnikova LI. Expression of HSP70 Heat-Shock Proteins under Oxidative Stress. ADVANCES IN GERONTOLOGY 2020. [DOI: 10.1134/s2079057020010099] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Liu C, Chaudhry MT, Zhao D, Lin T, Tian Y, Fu J. Heat shock protein 70 protects the quail cecum against oxidant stress, inflammatory injury, and microbiota imbalance induced by cold stress. Poult Sci 2020; 98:5432-5445. [PMID: 31247643 DOI: 10.3382/ps/pez327] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 06/04/2019] [Indexed: 12/11/2022] Open
Abstract
The intent of this study was to investigate the effects of cold stress on oxidative indexes, inflammatory factors, and microbiota in the quail cecum. A total of 192 male quails (15-day-old) were randomly divided into 12 groups (16 in each group) and were exposed to acute (up to 12 h) and chronic (up to 20 D) cold stress at 12 ± 1°C. After cold stress treatment, we examined morphological damage, oxidative stress indexes, inflammatory factors, and intestinal microbiota. Results of morphological examination showed that both acute and chronic cold stress can lead to cecal tissue injury. In addition, both acute and chronic cold stress, especially chronic cold stress can influence the activity of oxidative stress mediators. Glutathione (GSH) and glutathione peroxidase (GSH-Px) activities decreased significantly (p < 0.05), while the nitric oxide (NO) content and inducible nitric oxide synthase (iNOS) activity increased significantly (p < 0.05). Moreover, mRNA levels of inflammatory factors cyclooxygenase-2 (COX-2), prostaglandin E synthase (PTGES), and heat shock protein 70 (Hsp70) were higher in both acute and chronic cold stress groups when compared with the control group (p < 0.05). Furthermore, the intestinal microbiota was changed in both the acute and chronic cold stress groups. These results suggested that cold stress caused oxidative stress and inflammatory injury in cecal tissues, influenced cecal microbiota, and increased expression of Hsp70, which may contribute in protecting the cecum against cold stress in quails.
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Affiliation(s)
- Chunpeng Liu
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.,Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 501225, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | | | - Dan Zhao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Tong Lin
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Yunbo Tian
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.,Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 501225, China
| | - Jing Fu
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.,Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 501225, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
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17
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15-Deoxy-∆- 12,14-Prostaglandin J2 (15d-PGJ2), an Endogenous Ligand of PPAR- γ: Function and Mechanism. PPAR Res 2019; 2019:7242030. [PMID: 31467514 PMCID: PMC6699332 DOI: 10.1155/2019/7242030] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 07/14/2019] [Indexed: 02/06/2023] Open
Abstract
15-Deoxy-∆-12,14-prostaglandin J2 (15d-PGJ2), a natural peroxisome proliferator-activated receptor-γ (PPAR-γ) agonist, has been explored in some detail over the last 20 years. By triggering the PPAR-γ signalling pathway, it plays many roles and exerts antitumour, anti-inflammatory, antioxidation, antifibrosis, and antiangiogenesis effects. Although many synthetic PPAR-γ receptor agonists have been developed, as an endogenous product of PPAR-γ receptors, 15d-PGJ2 has beneficial characteristics including rapid expression and the ability to contribute to a natural defence mechanism. In this review, we discuss the latest advances in our knowledge of the biological role of 15d-PGJ2 mediated through PPAR-γ. It is important to understand its structure, synthesis, and functional mechanisms to develop preventive agents and limit the progression of associated diseases.
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18
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Ren J, Liu C, Zhao D, Fu J. The role of heat shock protein 70 in oxidant stress and inflammatory injury in quail spleen induced by cold stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:21011-21023. [PMID: 29766433 DOI: 10.1007/s11356-018-2142-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/25/2018] [Indexed: 06/08/2023]
Abstract
The aim of this study was to investigate the role of heat shock protein 70 (Hsp70) in oxidative stress and inflammatory damage in the spleen of quails which were induced by cold stress. One hundred ninety-two 15-day-old male quails were randomly divided into 12 groups and kept at 12 ± 1 °C to examine acute and chronic cold stress. We first detected the changes in activities of antioxidant enzymes in the spleen tissue under acute and chronic cold stress. The activities of glutathione peroxidase (GSH-Px) fluctuated in acute cold stress groups, while they were significantly decreased (p < 0.05) after chronic cold stress. The activities of superoxide dismutase (SOD), inducible nitric oxide synthase (iNOS), and nitric oxide (NO) content were decreased significantly (p < 0.05) in both of the acute and chronic cold stress groups. Malondialdehyde (MDA) content was significantly increased (p < 0.05) under cold stress except the 0.5 h group of acute cold stress. Besides, histopathological analysis showed that quail's spleen tissue was inflammatory injured seriously in both the acute and chronic cold stress groups. Additionally, the inflammatory factors (cyclooxygenase-2 (COX-2), prostaglandin E synthase (PTGES), iNOS, nuclear factor-kappa B (NF-κB), and tumor necrosis factor-a (TNF-α)) and Hsp70 mRNA levels were increased in both of the acute and chronic cold stress groups compared with the control groups. These results suggest that oxidative stress and inflammatory injury could be induced by cold stress in spleen tissues of quails. Furthermore, the increased expression of Hsp70 may play a role in protecting the spleen against oxidative stress and inflammatory damage caused by cold stress.
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Affiliation(s)
- Jiayi Ren
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Chunpeng Liu
- Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, 510225, China
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Dan Zhao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Jing Fu
- Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China.
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou, 510225, China.
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, China.
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19
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Kabalyk MA. Age-Related Aspects of the Involvement of Heat Shock Proteins in the Pathogenesis of Osteoarthritis. ADVANCES IN GERONTOLOGY 2018. [DOI: 10.1134/s2079057017040063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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20
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Gleixner AM, Hutchison DF, Sannino S, Bhatia TN, Leak LC, Flaherty PT, Wipf P, Brodsky JL, Leak RK. N-Acetyl-l-Cysteine Protects Astrocytes against Proteotoxicity without Recourse to Glutathione. Mol Pharmacol 2017; 92:564-575. [PMID: 28830914 DOI: 10.1124/mol.117.109926] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 08/17/2017] [Indexed: 02/06/2023] Open
Abstract
N-acetyl-l-cysteine (NAC) exhibits protective properties in brain injury models and has undergone a number of clinical trials. Most studies of NAC have focused on neurons. However, neuroprotection may be complemented by the protection of astrocytes because healthier astrocytes can better support the viability of neurons. Here, we show that NAC can protect astrocytes against protein misfolding stress (proteotoxicity), the hallmark of neurodegenerative disorders. Although NAC is thought to be a glutathione precursor, NAC protected primary astrocytes from the toxicity of the proteasome inhibitor MG132 without eliciting any increase in glutathione. Furthermore, glutathione depletion failed to attenuate the protective effects of NAC. MG132 elicited a robust increase in the folding chaperone heat shock protein 70 (Hsp70), and NAC mitigated this effect. Nevertheless, three independent inhibitors of Hsp70 function ablated the protective effects of NAC, suggesting that NAC may help preserve Hsp70 chaperone activity and improve protein quality control without need for Hsp70 induction. Consistent with this view, NAC abolished an increase in ubiquitinated proteins in MG132-treated astrocytes. However, NAC did not affect the loss of proteasome activity in response to MG132, demonstrating that it boosted protein homeostasis and cell viability without directly interfering with the efficacy of this proteasome inhibitor. The thiol-containing molecules l-cysteine and d-cysteine both mimicked the protective effects of NAC, whereas the thiol-lacking molecule N-acetyl-S-methyl-l-cysteine failed to exert protection or blunt the rise in ubiquitinated proteins. Collectively, these findings suggest that the thiol group in NAC is required for its effects on glial viability and protein quality control.
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Affiliation(s)
- Amanda M Gleixner
- Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania (A.M.G., D.F.H., T.N.B., L.C.L., P.T.F., R.K.L.); and Departments of Biological Sciences (S.S., J.L.B.) and Chemistry and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (P.W.)
| | - Daniel F Hutchison
- Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania (A.M.G., D.F.H., T.N.B., L.C.L., P.T.F., R.K.L.); and Departments of Biological Sciences (S.S., J.L.B.) and Chemistry and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (P.W.)
| | - Sara Sannino
- Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania (A.M.G., D.F.H., T.N.B., L.C.L., P.T.F., R.K.L.); and Departments of Biological Sciences (S.S., J.L.B.) and Chemistry and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (P.W.)
| | - Tarun N Bhatia
- Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania (A.M.G., D.F.H., T.N.B., L.C.L., P.T.F., R.K.L.); and Departments of Biological Sciences (S.S., J.L.B.) and Chemistry and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (P.W.)
| | - Lillian C Leak
- Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania (A.M.G., D.F.H., T.N.B., L.C.L., P.T.F., R.K.L.); and Departments of Biological Sciences (S.S., J.L.B.) and Chemistry and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (P.W.)
| | - Patrick T Flaherty
- Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania (A.M.G., D.F.H., T.N.B., L.C.L., P.T.F., R.K.L.); and Departments of Biological Sciences (S.S., J.L.B.) and Chemistry and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (P.W.)
| | - Peter Wipf
- Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania (A.M.G., D.F.H., T.N.B., L.C.L., P.T.F., R.K.L.); and Departments of Biological Sciences (S.S., J.L.B.) and Chemistry and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (P.W.)
| | - Jeffrey L Brodsky
- Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania (A.M.G., D.F.H., T.N.B., L.C.L., P.T.F., R.K.L.); and Departments of Biological Sciences (S.S., J.L.B.) and Chemistry and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (P.W.)
| | - Rehana K Leak
- Division of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania (A.M.G., D.F.H., T.N.B., L.C.L., P.T.F., R.K.L.); and Departments of Biological Sciences (S.S., J.L.B.) and Chemistry and Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (P.W.)
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21
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Wang LC, Liao LX, Lv HN, Liu D, Dong W, Zhu J, Chen JF, Shi ML, Fu G, Song XM, Jiang Y, Zeng KW, Tu PF. Highly Selective Activation of Heat Shock Protein 70 by Allosteric Regulation Provides an Insight into Efficient Neuroinflammation Inhibition. EBioMedicine 2017; 23:160-172. [PMID: 28807514 PMCID: PMC5605382 DOI: 10.1016/j.ebiom.2017.08.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 08/06/2017] [Accepted: 08/07/2017] [Indexed: 12/11/2022] Open
Abstract
Heat shock protein 70 (Hsp70) is widely involved in immune disorders, making it as an attractive drug target for inflammation diseases. Nonselective induction of Hsp70 upregulation for inflammation therapy could cause extensive interference in inflammation-unrelated protein functions, potentially resulting in side effects. Nevertheless, direct pharmacological activation of Hsp70 via targeting specific functional amino acid residue may provide an insight into precise Hsp70 function regulation and a more satisfactory treatment effect for inflammation, which has not been extensively focused. Here we show a cysteine residue (Cys306) for selective Hsp70 activation using natural small-molecule handelin. Covalent modification of Cys306 significantly elevates Hsp70 activity and shows more satisfactory anti-neuroinflammation effects. Mechanism study reveals Cys306 modification by handelin induces an allosteric regulation to facilitate adenosine triphosphate hydrolysis capacity of Hsp70, which leads to the effective blockage of subsequent inflammation signaling pathway. Collectively, our study offers some insights into direct pharmacological activation of Hsp70 by specially targeting functional cysteine residue, thus providing a powerful tool for accurately modulating neuroinflammation pathogenesis in human with fewer undesirable adverse effects. Cys306 is a druggable residue for direct pharmacological activation of Hsp70. Covalent modification of Cys306 promotes direct Hsp70 activation via allosteric effect. Pharmacological activation of Hsp70 exerts satisfactory inhibition on neuroinflammation with fewer side effects.
Accumulated evidence reveals that Hsp70, a stress response protein, is highly involved in various neuroimmunological diseases. Hsp70 herein serves as a tempting target for anti-inflammation therapy. In this work, we identified an herb-derived guaianolide dimer compound handelin as a potent activator of Hsp70 with anti-neuroinflammatory effects. Handelin covalently modified Cys306 residue of Hsp70, and then activated Hsp70 by allosteric effect. These results can provide an insight into the direct pharmacological regulation of Hsp70 function by targeting specific amino acid residue and also guide future rational drug design to treat human neuroimmunological diseases.
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Affiliation(s)
- Li-Chao Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Li-Xi Liao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Hai-Ning Lv
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Dan Liu
- Proteomics Laboratory, Medical and Healthy Analytical Center, Peking University Health Science Center, Beijing 100191, China
| | - Wei Dong
- State Key Laboratory of Membrane Biology, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking University, Beijing 100871, China
| | - Jian Zhu
- State Key Laboratory of Membrane Biology, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking University, Beijing 100871, China
| | - Jin-Feng Chen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Meng-Ling Shi
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ge Fu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiao-Min Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yong Jiang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ke-Wu Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Peng-Fei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.
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Lin CC, Yang CC, Chen YW, Hsiao LD, Yang CM. Arachidonic Acid Induces ARE/Nrf2-Dependent Heme Oxygenase-1 Transcription in Rat Brain Astrocytes. Mol Neurobiol 2017; 55:3328-3343. [PMID: 28497199 DOI: 10.1007/s12035-017-0590-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 04/28/2017] [Indexed: 12/21/2022]
Abstract
Arachidonic acid (AA) is a major product of phospholipid hydrolysis catalyzed by phospholipase A2 during neurodegenerative diseases. AA exerts as a second messenger to regulate various signaling components which may be involved in different pathophysiological processes. Astrocytes are the main types of CNS resident cells which maintain and support the physiological function of brain. AA has been shown to induce ROS generation through activation of NADPH oxidases (Noxs) which may play a key role in the expression of heme oxygenase-1 (HO-1). Therefore, this study was designed to investigate the mechanisms underlying AA-induced HO-1 expression in rat brain astrocytes (RBA-1). We found that AA induced HO-1 protein and mRNA expression and promoter activity in RBA-1, which was mediated through the synthesis of 15-deoxy-Δ12,14-prostaglandin D2-activated peroxisome proliferator-activated receptor-γ (PPARγ) receptors. This note was confirmed by transfection with PPARγ small interfering RNAs (siRNA) which attenuated the AA-mediated responses. AA-induced HO-1 expression was mediated through Nox/ROS generation, which was inhibited by Nox inhibitors (diphenyleneiodonium and apocynin) and ROS scavengers (N-acetyl cysteine). Moreover, AA-induced HO-1 expression was mediated through phosphorylation of Src, Pyk2, platelet-derived growth factor, PI3K/Akt, and ERK1/2 which were inhibited by the pharmacological inhibitors including PP1, PF431396, AG1296, LY294002, and U0126 or by transfection with respective siRNAs. AA-enhanced Nrf2 expression and HO-1 promoter activity was inhibited by transfection with Nrf2 siRNA or by these pharmacological inhibitors. Furthermore, chromatin immunoprecipitation assay confirmed that Nrf2 and PPARγ were associated with the proximal antioxidant response element (ARE)-binding site on HO-1 promoter, suggesting that Nrf2/PPARγ are key transcription factors modulating HO-1 expression. AA-induced ARE promoter activity was also reduced by these pharmacological inhibitors. These findings suggested that AA increases formation of Nrf2 and PPARγ complex and binding with ARE1 binding site through Src, Pyk2, PI3K/Akt, and ERK1/2, which further induced HO-1 expression in RBA-1 cells.
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Affiliation(s)
- Chih-Chung Lin
- Department of Anesthetics, Chang Gung Memorial Hospital at Linkou, and College of Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan
| | - Chien-Chung Yang
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Linkou, Kwei-San, Tao-Yuan, Taiwan.,Department of Physiology and Pharmacology and Health Aging Research Center, College of Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan
| | - Yu-Wen Chen
- Department of Physiology and Pharmacology and Health Aging Research Center, College of Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan
| | - Li-Der Hsiao
- Department of Anesthetics, Chang Gung Memorial Hospital at Linkou, and College of Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan
| | - Chuen-Mao Yang
- Department of Anesthetics, Chang Gung Memorial Hospital at Linkou, and College of Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan. .,Department of Physiology and Pharmacology and Health Aging Research Center, College of Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan. .,Research Center for Industry of Human Ecology, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Tao-Yuan, Taiwan. .,Department of Physiology and Pharmacology, Chang Gung University, 259 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan, Taiwan.
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23
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Maternal Type 1 diabetes activates stress response in early placenta. Placenta 2017; 50:110-116. [DOI: 10.1016/j.placenta.2017.01.118] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 01/09/2017] [Accepted: 01/12/2017] [Indexed: 01/22/2023]
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Comparative proteomic analysis of liver antioxidant mechanisms in Megalobrama amblycephala stimulated with dietary emodin. Sci Rep 2017; 7:40356. [PMID: 28084435 PMCID: PMC5233964 DOI: 10.1038/srep40356] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 12/05/2016] [Indexed: 12/13/2022] Open
Abstract
Oxidative stress is a toxicological endpoint that correlates with the nutrition status of fish through cellular damage, inflammation, and apoptosis. In order to understand the antioxidant mechanism induced by dietary emodin in Megalobrama amblycephala liver, a comparative proteomic analysis was performed to investigate the proteome alteration under emodin administration. 27 altered protein spots were separated under 30 mg kg-1 emodin stimulation based on 2-DE, and were all successfully identified using MALDI-TOF/TOF, representing 17 unique proteins. These proteins were functionally classified into antioxidant, metabolism, cytoskeleton, chaperone, signal transduction and cofactor groups. Network interaction and Gene Ontology annotation indicated 10 unique proteins were closely related to antioxidation and directly regulated by each other. Compared with the control group, administration of 30 mg kg-1 emodin significantly increased the antioxidant-related mRNA expressions of GPx1, GSTm and HSP70, but decreased the mRNA expressions of GAPDH and Sord, which was consistent with the protein expression. Nevertheless, Pgk1 and Aldh8a1 were up- and down-regulated, and ALDOB was down- and up-regulated at the mRNA and protein levels, respectively. These results revealed that the altered proteins enhanced antioxidation via complex regulatory mechanisms, and 30 mg kg-1 emodin was a suitable immunostimulant for M. amblycephala.
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Lamari F, Mahdhi A, Chakroun I, Esteban MA, Mazurais D, Amina B, Gatesoupe FJ. Interactions between candidate probiotics and the immune and antioxidative responses of European sea bass (Dicentrarchus labrax) larvae. JOURNAL OF FISH DISEASES 2016; 39:1421-1432. [PMID: 27133829 DOI: 10.1111/jfd.12479] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 02/16/2016] [Accepted: 02/18/2016] [Indexed: 06/05/2023]
Abstract
The use of lactic acid bacteria (LAB) as probiotics in aquaculture may improve the quality of seed production and limit the use of antibiotics in fish hatcheries. This study attempted to further characterize the candidate probiotic Lactobacillus casei X2, and the immune and physiological responses of the sea bass larvae. L. casei X2 was confirmed as a good candidate, due to its wide antibacterial spectrum against both Gram-positive and Gram-negative bacteria, and its free radical scavenging activity. In addition, if the strain did not seem able to form biofilm on abiotic surfaces, it adhered strongly to Hep-2 cells. However, these characteristics did not seem efficient in vivo. At 20 days post-hatch (dph), the expression level of CAT gene was significantly different between group fed without probiotic and the two groups treated with either Pediococcus acidilactici or L. casei. This gene was upregulated in the group treated with strain X2 and downregulated in the group with a commercial probiotic strain P. acidilactici, suggesting a better antioxidant activity with the later strain. At the same sampling date, the IL-1β gene was upregulated in the group treated with P. acidilactici, and the HSP70 gene was overexpressed at 41 dph. As the stimulation of these two last genes, such transcriptomic indicators must be cautiously interpreted.
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Affiliation(s)
- F Lamari
- Ifremer, UMR 6539 LEMAR, Laboratoire 'Adaptation, Reproduction, Nutrition' (ARN), Centre de Bretagne, Plouzané, France.
- Laboratory of Analysis, Treatment and Valorization of Environment Pollutants and Products, Faculty of Pharmacy, Monastir University, Monastir, Tunisia.
| | - A Mahdhi
- Laboratory of Analysis, Treatment and Valorization of Environment Pollutants and Products, Faculty of Pharmacy, Monastir University, Monastir, Tunisia
| | - I Chakroun
- Laboratory of Analysis, Treatment and Valorization of Environment Pollutants and Products, Faculty of Pharmacy, Monastir University, Monastir, Tunisia
| | - M A Esteban
- Fish Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional 'Campus Mare Nostrum', University of Murcia, Murcia, Spain
| | - D Mazurais
- Ifremer, UMR 6539 LEMAR, Laboratoire 'Adaptation, Reproduction, Nutrition' (ARN), Centre de Bretagne, Plouzané, France
| | - B Amina
- Laboratory of Analysis, Treatment and Valorization of Environment Pollutants and Products, Faculty of Pharmacy, Monastir University, Monastir, Tunisia
| | - F-J Gatesoupe
- Ifremer, UMR 6539 LEMAR, Laboratoire 'Adaptation, Reproduction, Nutrition' (ARN), Centre de Bretagne, Plouzané, France
- NUMEA, INRA, Université de Pau et des Pays de l'Adour, Saint Pée sur Nivelle, France
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Reeg S, Jung T, Castro JP, Davies KJA, Henze A, Grune T. The molecular chaperone Hsp70 promotes the proteolytic removal of oxidatively damaged proteins by the proteasome. Free Radic Biol Med 2016; 99:153-166. [PMID: 27498116 PMCID: PMC5201141 DOI: 10.1016/j.freeradbiomed.2016.08.002] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/19/2016] [Accepted: 08/01/2016] [Indexed: 01/23/2023]
Abstract
One hallmark of aging is the accumulation of protein aggregates, promoted by the unfolding of oxidized proteins. Unraveling the mechanism by which oxidized proteins are degraded may provide a basis to delay the early onset of features, such as protein aggregate formation, that contribute to the aging phenotype. In order to prevent aggregation of oxidized proteins, cells recur to the 20S proteasome, an efficient turnover proteolysis complex. It has previously been shown that upon oxidative stress the 26S proteasome, another form, dissociates into the 20S form. A critical player implicated in its dissociation is the Heat Shock Protein 70 (Hsp70), which promotes an increase in free 20S proteasome and, therefore, an increased capability to degrade oxidized proteins. The aim of this study was to test whether or not Hsp70 is involved in cooperating with the 20S proteasome for a selective degradation of oxidatively damaged proteins. Our results demonstrate that Hsp70 expression is induced in HT22 cells as a result of mild oxidative stress conditions. Furthermore, Hsp70 prevents the accumulation of oxidized proteins and directly promotes their degradation by the 20S proteasome. In contrast the expression of the Heat shock cognate protein 70 (Hsc70) was not changed in recovery after oxidative stress and Hsc70 has no influence on the removal of oxidatively damaged proteins. We were able to demonstrate in HT22 cells, in brain homogenates from 129/SV mice and in vitro, that there is an increased interaction of Hsp70 with oxidized proteins, but also with the 20S proteasome, indicating a role of Hsp70 in mediating the interaction of oxidized proteins with the 20S proteasome. Thus, our data clearly implicate an involvement of Hsp70 oxidatively damaged protein degradation by the 20S proteasome.
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Affiliation(s)
- Sandra Reeg
- German Institute of Human Nutrition Potsdam Rehbruecke (DIfE), Department of Molecular Toxicology, 14588 Nuthetal, Germany
| | - Tobias Jung
- German Institute of Human Nutrition Potsdam Rehbruecke (DIfE), Department of Molecular Toxicology, 14588 Nuthetal, Germany; German Center for Diabetes Research (DZD), Germany
| | - José P Castro
- German Institute of Human Nutrition Potsdam Rehbruecke (DIfE), Department of Molecular Toxicology, 14588 Nuthetal, Germany; German Center for Diabetes Research (DZD), Germany
| | - Kelvin J A Davies
- University of Southern California, Leonard Davis School of Gerontology, and Division of Molecular & Computational Biology, Dornsife College of Letters, Arts, and Sciences, Los Angeles, CA 90089-0191, USA
| | - Andrea Henze
- University Potsdam, Institute of Nutritional Science, Department of Physiology and Pathophysiology, 14588 Nuthetal, Germany
| | - Tilman Grune
- German Institute of Human Nutrition Potsdam Rehbruecke (DIfE), Department of Molecular Toxicology, 14588 Nuthetal, Germany; German Center for Diabetes Research (DZD), Germany.
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Biocompatibility assessment of fibrous nanomaterials in mammalian embryos. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:1151-9. [DOI: 10.1016/j.nano.2016.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 12/04/2015] [Accepted: 01/15/2016] [Indexed: 11/22/2022]
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Wang J, Sun H, Fu Z, Liu M. Chondroprotective effects of alpha-lipoic acid in a rat model of osteoarthritis. Free Radic Res 2016; 50:767-80. [PMID: 27055478 DOI: 10.1080/10715762.2016.1174775] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The purpose of this study was to investigate whether alpha-lipoic acid (ALA) confers a chondroprotective effect on articular cartilage in rats with monosodium iodoacetate (MIA)-induced osteoarthritis (OA). METHODS Fifty male SD rats were divided into five groups, including SHAM-operated, MIA-induced OA, and three experimental groups treated with 50-, 100-, or 200-mg/kg ALA. After 14 d of ALA treatment, rats were sacrificed for joint macroscopic and histology assessments. The gene and protein expressions of markers related to chondrocyte phenotype, caspase proteins, NADPH oxidase 4 (Nox4), p22(phox), activation of nuclear factor-κB (NF-κB), and endoplasmic reticulum (ER) stress were measured by Western blot analyses or qRT-PCR. RESULTS The results showed that MIA injection successfully induced OA by causing cartilage degeneration. Morphological and histological examinations demonstrated that ALA treatment, especially 200 mg/kg of ALA, significantly ameliorated cartilage degeneration in rats with MIA-induced OA. ALA could effectively increase the levels of the collagen type II and aggrecan genes and inhibit apoptosis-related proteins expression. ALA reduced biomakers of oxidative damage and over-expression levels of Nox4 and p22(phox). ALA also suppressed ER stress and inhibited the activation of NF-κB pathway. Moreover, ALA obviously inhibited TNF-α secretion and Wnt/β-catenin signaling way. CONCLUSION These findings indicated that ALA might be a potential therapeutic agent for the protection of articular cartilage against progression of OA through inhibition of oxidative stress, ER stress, inflammatory cytokine secretion, and Wnt/β-catenin activation.
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Affiliation(s)
- Ji Wang
- a Department of Orthopaedics , First Affiliated Hospital, Dalian Medical University , Dalian , China
| | - Huijun Sun
- b Department of Clinical Pharmacology, College of Pharmacy , Dalian Medical University , Dalian , China
| | - Zhuodong Fu
- a Department of Orthopaedics , First Affiliated Hospital, Dalian Medical University , Dalian , China
| | - Mozhen Liu
- a Department of Orthopaedics , First Affiliated Hospital, Dalian Medical University , Dalian , China
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Molecular cloning, expression pattern, and chemical analysis of heat shock protein 70 (HSP70) in the mudskipper Boleophthalmus pectinirostris: Evidence for its role in regulating spermatogenesis. Gene 2016; 575:331-8. [DOI: 10.1016/j.gene.2015.09.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 09/03/2015] [Accepted: 09/03/2015] [Indexed: 01/26/2023]
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30
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Zhao X, Kuang D, Duan Y, Xiao G, Ni J, Duan Y, Wang G. Hyperhomocysteinemia regulated SCF expression in cultured cardiomyocytes via modulation of NF-κB activities. Mol Cell Biochem 2015; 405:197-203. [PMID: 25896131 DOI: 10.1007/s11010-015-2411-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 04/09/2015] [Indexed: 11/28/2022]
Abstract
Hyperhomocysteinemia (HHcy) is an important, independent risk factor for coronary artery disease, especially for the myocardial infarction. Our previous study has shown that myocardial stem cell factor (SCF) mediated cardiac stem cells migration, which was involved in cardiac repair. However, it is not clear regarding the action of HHcy on the expression of SCF in cardiomyocytes. In the present study, cultured neonatal rat cardiomyocytes were treated with 20, 50, or 100 μM homocysteine (Hcy) for 5 h. Results showed an significantly increase of SCF expression with 20-50 μM Hcy incubation, which matched with elevated nuclear factor-kappaB (NF-κB) activities. Treatment with NF-κB inhibitor N-acetylcysteine significantly inhibited the increase of SCF. Nevertheless, 100 μM Hcy markedly decreased the expression of SCF, which was in accordance with the suppression of NF-κB activities. The present study indicated that HHcy regulated the expression of SCF in a concentration-dependent manner via modulation of NF-κB activities. Thus, HHcy may increase the risk for cardiovascular diseases not only by causing endothelial dysfunction but also by directly exerting detrimental effects on cardiomyocytes.
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Affiliation(s)
- Xia Zhao
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Da Dao, Wuhan, 430030, China,
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Saintigny Y, Cruet-Hennequart S, Hamdi DH, Chevalier F, Lefaix JL. Impact of Therapeutic Irradiation on Healthy Articular Cartilage. Radiat Res 2015; 183:135-46. [DOI: 10.1667/rr13928.1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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