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Luo X, Liu M, Wang S, Chen Y, Bao X, Lv Y, Zhang S, Xu B, Weng X, Bai X, Zeng M, Zhao C, Li J, Jia H, Yu B. Combining metabolomics and OCT to reveal plasma metabolic profiling and biomarkers of plaque erosion and plaque rupture in STEMI patients. Int J Cardiol 2023; 390:131223. [PMID: 37517782 DOI: 10.1016/j.ijcard.2023.131223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/15/2023] [Accepted: 02/26/2023] [Indexed: 08/01/2023]
Abstract
OBJECTIVE Plaque erosion (PE) and plaque rupture (PR) are the main subtypes of ST-segment elevation myocardial infarction (STEMI), the differences of metabolic patterns between PE and PR remain largely unknown. METHODS 132 STEMI patients were divided into training set (PR, n = 36; PE, n = 36) and test set (PR, n = 30; PE, n = 30), the plasma from patients were analyzed by liquid chromatography quadruple time-of-flight mass spectrometry. RESULTS We identified 56 and 28 differences in training and test set, respectively. Among these metabolites, it was found that docosahexaenoic acid (DHA), salicylic acid and proline were recognized in both tests. Receiver Operating Characteristic (ROC) analysis showed that the area under curve of docosahexaenoic acid (DHA) was 0.81 and 0.75 in training and test samples, respectively; proline was 0.67 and 0.74 in training and test samples, respectively; salicylic acid was 0.70 and 0.73 in training and test samples, respectively. CONCLUSIONS DHA, salicylic acid, and proline could be used as non-invasive biomarkers to differentiate PE and PR.
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Affiliation(s)
- Xing Luo
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Minghao Liu
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Shengfang Wang
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Yuwu Chen
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Xiaoyi Bao
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Ying Lv
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Shan Zhang
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Biyi Xu
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Xiuzhu Weng
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Xiaoxuan Bai
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Ming Zeng
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Chen Zhao
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Ji Li
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China
| | - Haibo Jia
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China.
| | - Bo Yu
- Department of Cardiology, 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, PR China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, PR China.
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Carvajal F, Sánchez-Gil A, Cardona D, Rincón-Cervera MA, Lerma-Cabrera JM. The Effect of Very-Long-Chain n-3 Polyunsaturated Fatty Acids in the Central Nervous System and Their Potential Benefits for Treating Alcohol Use Disorder: Reviewing Pre-Clinical and Clinical Data. Nutrients 2023; 15:2993. [PMID: 37447319 DOI: 10.3390/nu15132993] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/28/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Alcohol use poses a significant global health concern, leading to serious physical and socioeconomic issues worldwide. The current treatment options for problematic alcohol consumption are limited, leading to the exploration of alternative approaches, such as nutraceuticals. One promising target is very-long-chain n-3 polyunsaturated fatty acids (VLC n-3 PUFAs). This review aims to compile the most relevant pre-clinical and clinical evidence on the effect of VLC n-3 PUFAs on alcohol use disorders and related outcomes. The findings suggest that VLC n-3 PUFAs may alleviate the physiological changes induced by alcohol consumption, including neuroinflammation and neurotransmitter dysregulation. Additionally, they can reduce withdrawal symptoms, improve mood, and reduce stress level, all of which are closely associated with problematic alcohol consumption. However, more research is required to fully understand the precise mechanisms by which VLC n-3 PUFAs exert their function. Furthermore, PUFAs should not be considered a standalone solution, but as a complement to other therapeutic approaches. Although preliminary evidence supports the potential therapeutic effect of VLC n-3 PUFAs on problematic alcohol consumption, additional research is needed to validate these findings and determine the optimal use of PUFAs as part of a comprehensive approach to the treatment of alcohol use disorders.
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Affiliation(s)
- Francisca Carvajal
- Department of Psychology, University of Almeria, 04120 Almeria, Spain
- Health Research Center, University of Almeria, 04120 Almeria, Spain
| | - Ainhoa Sánchez-Gil
- Department of Psychology, University of Almeria, 04120 Almeria, Spain
- Health Research Center, University of Almeria, 04120 Almeria, Spain
| | - Diana Cardona
- Health Research Center, University of Almeria, 04120 Almeria, Spain
- Department of Nursing, Physiotherapy and Medicine, University of Almeria, 04120 Almeria, Spain
| | - Miguel Angel Rincón-Cervera
- Food Technology Division, ceiA3, CIAMBITAL, University of Almeria, 04120 Almeria, Spain
- Institute of Nutrition and Food Technology, University of Chile, Santiago 830490, Chile
| | - Jose Manuel Lerma-Cabrera
- Department of Psychology, University of Almeria, 04120 Almeria, Spain
- Health Research Center, University of Almeria, 04120 Almeria, Spain
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Yin Q, Zang G, Li N, Sun C, Du R. Agonist-induced Piezo1 activation promote mitochondrial-dependent apoptosis in vascular smooth muscle cells. BMC Cardiovasc Disord 2022; 22:287. [PMID: 35751027 PMCID: PMC9233385 DOI: 10.1186/s12872-022-02726-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 06/15/2022] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE Mechanical damage plays an essential role in the progression of atherosclerosis. Piezo1 is a new mechanically sensitive ion channel. The present study investigated the vascular smooth muscle cells (VSMCs) apoptosis induced by Piezo1 activation and explored its underlying mechanism. METHODS We evaluated cell viability and apoptosis rate with cell counting kit-8 (CCK-8) and Annexin V-FITC/PI flow cytometry assay, respectively. And then Western blot was performed to measure the relative protein. Reactive oxygen species (ROS) and intracellular Ca2+ were assessed via fluorescence microscope, and the mitochondrial transmembrane potential was monitored by JC-10 staining. RESULTS Our in vitro study revealed that mice in the ApoE-/- group compared with control mice showed higher Piezo1 expression(P < 0.05). Besides, Yoda1, a Piezo1 agonist, triggered Ca2+ overload, mitochondrial damage, accumulation of ROS, and VSMCs apoptosis in a dose-depend manner. Furthermore, BAPT-AM (an intracellular Ca2+ chelator) and NAC (an antioxidant) suppressed the mitochondrial damage and attenuated the VSMCs apoptosis. CONCLUSION Our study suggested that Piezo1 induced VSMCs apoptosis because of Ca2+ overload, excessive ROS generation, and mitochondrial dysfunction, which indicated that Piezo1 has potential value in treating vascular diseases.
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Affiliation(s)
- Qing Yin
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu Province, China.,School of Medicine, Jiangsu University, Zhenjiang, 212001, Jiangsu Province, China
| | - Guangyao Zang
- School of Medicine, Jiangsu University, Zhenjiang, 212001, Jiangsu Province, China
| | - Nannan Li
- School of Medicine, Jiangsu University, Zhenjiang, 212001, Jiangsu Province, China
| | - Chenchen Sun
- School of Medicine, Jiangsu University, Zhenjiang, 212001, Jiangsu Province, China
| | - Rongzeng Du
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu Province, China.
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Doğan B, Kemer Doğan ES. The Effects of Omega‐3 Supplementation on Serum Oxidative Stress Parameters in Experimental Periodontitis in an Animal Model. EUR J LIPID SCI TECH 2021. [DOI: 10.1002/ejlt.202100102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Burak Doğan
- Department of Periodontology, Faculty of Dentistry Hatay Mustafa Kemal University Hatay 31001 Turkey
| | - Esra Sinem Kemer Doğan
- Department of Periodontology, Faculty of Dentistry Hatay Mustafa Kemal University Hatay 31001 Turkey
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DHA induces Jurkat T-cell arrest in G2/M phase of cell cycle and modulates the plasma membrane expression of TRPC3/6 channels. Biochimie 2020; 181:169-175. [PMID: 33333171 DOI: 10.1016/j.biochi.2020.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 11/28/2020] [Accepted: 12/12/2020] [Indexed: 12/23/2022]
Abstract
We investigated whether docosahexaenoic acid (DHA), a dietary n-3 fatty acid, modulates calcium (Ca2+) signaling and cell cycle progression in human Jurkat T-cells. Our study demonstrates that DHA inhibited Jurkat T-cell cycle progression by blocking their passage from S phase to G2/M phase. In addition, DHA decreased the plasma membrane expression of TRPC3 and TRPC6 calcium channels during T-cell proliferation. Interestingly, this fatty acid increased plasma membrane expression of TRPC6 after 24 h of mitogenic stimulation by phorbol-13-myristate-12-acetate (PMA) and ionomycin. These variations in the membrane expression of TRPC3 and TRPC6 channels were not directly correlated with the mRNA expression, indicating that it was a post-translational phenomenon. DHA increased free intracellular calcium concentrations, [Ca2+]i, via opening TRPC3 and TRPC6 channels. We conclude that the anti-proliferative effect of DHA might involve the modulation of TRPC3 and TRPC6 channels in human T-cells.
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Tamarindo GH, Góes RM. Docosahexaenoic acid differentially modulates the cell cycle and metabolism- related genes in tumor and pre-malignant prostate cells. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158766. [PMID: 32712248 DOI: 10.1016/j.bbalip.2020.158766] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/13/2020] [Accepted: 07/19/2020] [Indexed: 12/11/2022]
Abstract
Prostate cancer (PCa) has different molecular features along progression, including androgen profile, which is associated to therapy inefficiency leading to more aggressive phenotype. Docosahexaenoic acid (DHA) has antiproliferative and pro-apoptotic properties in different cancers associated to cell metabolism modulation. The latter is of particular interest since metabolic reprogramming is one of PCa hallmarks, but is not clear how this occurs among disease progression. Therefore, we evaluated DHA antiproliferative potential in distinct androgenic backgrounds associated to metabolism modulation and androgen-regulated genes. For this purpose, pre-malignant PNT1A and tumor AR-positive 22rv1, and AR-negative PC3 cells were incubated with DHA at 100 μM-48 h. DHA reduced at least 26% cell number for all lineages due to S-phase decrease in AR-positive and G2/M arrest in AR-negative. Mitochondrial metabolic rate decreased in PNT1A (~38%) and increased in tumor cells (at least 40%). This was associated with ROS overproduction (1.6-fold PNT1A; 2.1 22rv1; 2.2 PC3), lipid accumulation (3-fold PNT1A; 1.8 22rv1; 3.6 PC3) and mitochondria damage in all cell lines. AKT, AMPK and PTEN were not activated in any cell line, but p-ERK1/2 increased (1.5-fold) in PNT1A. Expression of androgen-regulated and nuclear receptors genes showed that DHA affected them in a distinct pattern in each cell line, but most converged to metabolism regulation, response to hormones, lipids and stress. In conclusion, regardless of androgenic or PTEN background DHA exerted antiproliferative effect associated to cell cycle impairment, lipid deregulation and oxidative stress, but differentially regulated gene expression probably due to distinct molecular features of each pathologic stage.
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Affiliation(s)
| | - Rejane Maira Góes
- Institute of Biology, University of Campinas, Campinas, SP, Brazil; Department of Biology, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, São José do Rio Preto, SP, Brazil.
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Xie S, Wei D, Tan B, Liu Y, Tian L, Niu J. Schizochytrium limacinum Supplementation in a Low Fish-Meal Diet Improved Immune Response and Intestinal Health of Juvenile Penaeus monodon. Front Physiol 2020; 11:613. [PMID: 32714197 PMCID: PMC7344155 DOI: 10.3389/fphys.2020.00613] [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: 02/10/2020] [Accepted: 05/15/2020] [Indexed: 01/01/2023] Open
Abstract
The aim of the present experiment was to evaluate the effects of Schizochytrium limacinum supplementation on the immune response, gut microbiota, and health of Penaeus monodon fed a low fish-meal (FM) diet. A diet containing 25% FM was used as a control (Diet A), and three other diets were formulated to contain 15% FM and supplemented with 0, 0.75, and 1.5% S. limacinum (Diet B, C, and D, respectively). The experiment was carried out in quadruplicates (30 shrimp per replicate, average weight 1.01 ± 0.01 g), and the shrimps were fed the test diets to apparent satiation three times daily for 8 weeks. Shrimp fed diet B and D showed lower weight gain than those fed diet A. Supplementation of 0.75% S. limacinum enhanced expression of antioxidative genes (superoxide dismutase and catalase) and immune-response-related genes in hepatopancreas but could not affect the gene expression of immune deficiency in hepatopancreas and Tube in the intestine. A low FM diet induced endoplasmic reticulum swelling of the intestinal epithelial cells, which was alleviated by S. limacinum supplementation. Ultra-performance liquid chromatography coupled with quadrupole time of flight mass spectrometry was employed to analyze the changes of hemolymph metabolomics, 49 significantly different metabolites were identified, and lysoPCs, deoxyinosine, inosine, and highly unsaturated fatty acids were lower in fish fed with low FM diets. Intestinal microbial diversity was lower in shrimp fed Diet B than those fed the control diet. Dietary supplementation of 0.75% S. limacinum increased intestinal microbial diversity of shrimp and decreased the ratio of pathogenic bacterium (Thalassotalea and Tenacibaculum). These results indicated that supplementing S. limacinum into a low FM diet improves the growth performance, immune response, and intestinal health of P. monodon. The optimum inclusion level of seems to be 0.75% of diet.
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Affiliation(s)
- Shiwei Xie
- Laboratory of Aquatic Animal Nutrition and Feed, Fisheries College, Guangdong Ocean University, Zhanjiang, China
- Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Dan Wei
- Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Beiping Tan
- Laboratory of Aquatic Animal Nutrition and Feed, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yongjian Liu
- Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Lixia Tian
- Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jin Niu
- Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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Taha A, Sharifpanah F, Wartenberg M, Sauer H. Omega-3 and Omega-6 polyunsaturated fatty acids stimulate vascular differentiation of mouse embryonic stem cells. J Cell Physiol 2020; 235:7094-7106. [PMID: 32020589 DOI: 10.1002/jcp.29606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 01/13/2020] [Indexed: 12/14/2022]
Abstract
Polyunsaturated fatty acids (PUFAs) and their metabolites may influence cell fate regulation. Herein, we investigated the effects of linoleic acid (LA) as ω-6 PUFA, eicosapentaenoic acid (EPA) as ω-3 PUFA and palmitic acid (PA) on vasculogenesis of embryonic stem (ES) cells. LA and EPA increased vascular structure formation and protein expression of the endothelial-specific markers fetal liver kinase-1, CD31 as well as VE-cadherin, whereas PA was without effect. LA and EPA increased reactive oxygen species (ROS) and nitric oxide (NO), activated endothelial NO synthase (eNOS) and raised intracellular calcium. The calcium response was inhibited by the intracellular calcium chelator BAPTA, sulfo-N-succinimidyl oleate which is an antagonist of CD36, the scavenger receptor for fatty acid uptake as well as by a CD36 blocking antibody. Prevention of ROS generation by radical scavengers or the NADPH oxidase inhibitor VAS2870 and inhibition of eNOS by L-NAME blunted vasculogenesis. PUFAs stimulated AMP activated protein kinase-α (AMPK-α) as well as peroxisome proliferator-activated receptor-α (PPAR-α). AMPK activation was abolished by calcium chelation as well as inhibition of ROS and NO generation. Moreover, PUFA-induced vasculogenesis was blunted by the PPAR-α inhibitor GW6471. In conclusion, ω-3 and ω-6 PUFAs stimulate vascular differentiation of ES cells via mechanisms involving calcium, ROS and NO, which regulate function of the energy sensors AMPK and PPAR-α and determine the metabolic signature of vascular cell differentiation.
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Affiliation(s)
- Amer Taha
- Department of Physiology, Justus Liebig University Giessen, Giessen, Germany
| | - Fatemeh Sharifpanah
- Department of Physiology, Justus Liebig University Giessen, Giessen, Germany
| | - Maria Wartenberg
- Department of Cardiology, Clinic of Internal Medicine I, University Heart Center, Jena University Hospital, Jena, Germany
| | - Heinrich Sauer
- Department of Physiology, Justus Liebig University Giessen, Giessen, Germany
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Shin JI, Jeon YJ, Lee S, Lee YG, Kim JB, Lee K. G-Protein-Coupled Receptor 120 Mediates DHA-Induced Apoptosis by Regulating IP3R, ROS and, ER Stress Levels in Cisplatin-Resistant Cancer Cells. Mol Cells 2019; 42:252-261. [PMID: 30764601 PMCID: PMC6449711 DOI: 10.14348/molcells.2019.2440] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 12/21/2018] [Accepted: 12/24/2018] [Indexed: 12/16/2022] Open
Abstract
The omega-3 fatty acid docosahexaenoic acid (DHA) is known to induce apoptosis and cell cycle arrest via the induction of reactive oxygen species (ROS) production and endoplasmic reticulum (ER) stress in many types of cancers. However, the roles of DHA in drug-resistant cancer cells have not been elucidated. In this study, we investigated the effects of DHA in cisplatin-resistant gastric cancer SNU-601/cis2 cells. DHA was found to induce ROS-dependent apoptosis in these cells. The inositol 1,4,5-triphosphate receptor (IP3R) blocker 2-aminoethyl diphenylboninate (2-APB) reduced DHA-induced ROS production, consequently reducing apoptosis. We also found that G-protein-coupled receptor 120 (GPR120), a receptor of long-chain fatty acids, is expressed in SNU-601/cis2 cells, and the knockdown of GPR120 using specific shRNAs alleviated DHA-mediated ROS production and apoptosis. GPR120 knockdown reduced the expression of ER stress response genes, similar to the case for the pre-treatment of the cells with N-acetyl-L-cysteine (NAC), an ROS scavenger, or 2-APB. Indeed, the knockdown of C/EBP homologous protein (CHOP), a transcription factor that functions under ER stress conditions, markedly reduced DHA-mediated apoptosis, indicating that CHOP plays an essential role in the anti-cancer activity of DHA. These results suggest that GPR120 mediates DHA-induced apoptosis by regulating IP3R, ROS, and ER stress levels in cisplatin-resistant cancer cells, and that GPR120 is an effective chemotherapeutic target for cisplatin resistance.
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Affiliation(s)
- Jong-Il Shin
- Department of Biological Sciences, Konkuk University, Seoul 05029,
Korea
| | - Yong-Joon Jeon
- Department of Biological Sciences, Konkuk University, Seoul 05029,
Korea
| | - Sol Lee
- Department of Biological Sciences, Konkuk University, Seoul 05029,
Korea
| | - Yoon Gyeong Lee
- Department of Biological Sciences, Konkuk University, Seoul 05029,
Korea
| | - Ji Beom Kim
- Department of Biological Sciences, Konkuk University, Seoul 05029,
Korea
| | - Kyungho Lee
- Department of Biological Sciences, Konkuk University, Seoul 05029,
Korea
- Research Center for Coupled Human and Natural System for Ecowelfare, Konkuk University, Seoul 05029,
Korea
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Gautam J, Banskota S, Shah S, Jee JG, Kwon E, Wang Y, Kim DY, Chang HW, Kim JA. 4-Hydroxynonenal-induced GPR109A (HCA 2 receptor) activation elicits bipolar responses, G αi -mediated anti-inflammatory effects and G βγ -mediated cell death. Br J Pharmacol 2018; 175:2581-2598. [PMID: 29473951 DOI: 10.1111/bph.14174] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 12/07/2017] [Accepted: 01/30/2018] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND AND PURPOSE In this study, we examined the possibility that 4-hydroxynonenal (4-HNE) acting as a ligand for the HCA2 receptor (GPR109A) elicits both anti-inflammatory and cell death responses. EXPERIMENTAL APPROACH Agonistic activity of 4-HNE was determined by observing the inhibition of cAMP generation in CHO-K1-GPR109A-Gi cell line, using surface plasmon resonance (SPR) binding and competition binding assays with [3 H]-niacin. 4-HNE-mediated signalling pathways and cellular responses were investigated in cells expressing GPR109A and those not expressing these receptors. KEY RESULTS Agonistic activity of 4-HNE was stronger than that of niacin or 3-OHBA at inhibiting forskolin-induced cAMP production and SPR binding affinity. In ARPE-19 and CCD-841 cells, activation of GPR109A by high concentrations of the agonists 4-HNE (≥10 μM), niacin (≥1000 μM) and 3-OHBA (≥1000 μM) induced apoptosis accompanied by elevated Ca2+ and superoxide levels. This 4-HNE-induced cell death was blocked by knockdown of GPR109A or NOX4 genes, or treatment with chemical inhibitors of Gβγ (gallein), intracellular Ca2+ (BAPTA-AM), NOX4 (VAS2870) and JNK (SP600125), but not by the cAMP analogue 8-CPT-cAMP. By contrast, low concentrations of 4-HNE, niacin and 3-OHBA down-regulated the expression of pro-inflammatory cytokines IL-6 and IL-8. These 4-HNE-induced inhibitory effects were blocked by a cAMP analogue but not by inhibitors of Gβγ -downstream signalling molecules. CONCLUSIONS AND IMPLICATIONS These results revealed that 4-HNE is a strong agonist for GPR109A that induces Gαi -dependent anti-inflammatory and Gβγ -dependent cell death responses. Moreover, the findings indicate that specific intracellular signalling molecules, but not GPR109A, can serve as therapeutic targets to block 4-HNE-induced cell death.
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Affiliation(s)
- Jaya Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan, Korea
| | | | - Sajita Shah
- College of Pharmacy, Yeungnam University, Gyeongsan, Korea
| | - Jun-Goo Jee
- College of Pharmacy, Kyungpook National University, Daegu, Korea
| | - Eunju Kwon
- College of Pharmacy, Yeungnam University, Gyeongsan, Korea
| | - Ying Wang
- College of Pharmacy, Yeungnam University, Gyeongsan, Korea
| | - Dong Young Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, Korea
| | | | - Jung-Ae Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, Korea
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Maternal high-salt diet alters redox state and mitochondrial function in newborn rat offspring's brain. Br J Nutr 2018; 119:1003-1011. [PMID: 29502538 DOI: 10.1017/s0007114518000235] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Excessive salt intake is a common feature of Western dietary patterns, and has been associated with important metabolic changes including cerebral redox state imbalance. Considering that little is known about the effect on progeny of excessive salt intake during pregnancy, the present study investigated the effect of a high-salt diet during pregnancy and lactation on mitochondrial parameters and the redox state of the brains of resulting offspring. Adult female Wistar rats were divided into two dietary groups (n 20 rats/group): control standard chow (0·675 % NaCl) or high-salt chow (7·2 % NaCl), received throughout pregnancy and for 7 d after delivery. On postnatal day 7, the pups were euthanised and their cerebellum, hypothalamus, hippocampus, prefrontal and parietal cortices were dissected. Maternal high-salt diet reduced cerebellar mitochondrial mass and membrane potential, promoted an increase in reactive oxygen species allied to superoxide dismutase activation and decreased offspring cerebellar nitric oxide levels. A significant increase in hypothalamic nitric oxide levels and mitochondrial superoxide in the hippocampus and prefrontal cortex was observed in the maternal high-salt group. Antioxidant enzymes were differentially modulated by oxidant increases in each brain area studied. Taken together, our results suggest that a maternal high-salt diet during pregnancy and lactation programmes the brain metabolism of offspring, favouring impaired mitochondrial function and promoting an oxidative environment; this highlights the adverse effect of high-salt intake in the health state of the offspring.
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de Oliveira MR, Nabavi SF, Nabavi SM, Jardim FR. Omega-3 polyunsaturated fatty acids and mitochondria, back to the future. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.06.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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A Critical Review on the Effect of Docosahexaenoic Acid (DHA) on Cancer Cell Cycle Progression. Int J Mol Sci 2017; 18:ijms18081784. [PMID: 28817068 PMCID: PMC5578173 DOI: 10.3390/ijms18081784] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 11/17/2022] Open
Abstract
Globally, there were 14.1 million new cancer diagnoses and 8.2 million cancer deaths in 2012. For many cancers, conventional therapies are limited in their successes and an improved understanding of disease progression is needed in conjunction with exploration of alternative therapies. The long chain polyunsaturated fatty acid, docosahexaenoic acid (DHA), has been shown to enhance many cellular responses that reduce cancer cell viability and decrease proliferation both in vitro and in vivo. A small number of studies suggest that DHA improves chemotherapy outcomes in cancer patients. It is readily incorporated into cancer cell membranes and, as a result there has been considerable research regarding cell membrane initiated events. For example, DHA has been shown to mediate the induction of apoptosis/reduction of proliferation in vitro and in vivo. However, there is limited research into the effect of DHA on cell cycle regulation in cancer cells and the mechanism(s) by which DHA acts are not fully understood. The purpose of the current review is to provide a critical examination of the literature investigating the ability of DHA to stall progression during different cell cycle phases in cancer cells, as well as the consequences that these changes may have on tumour growth, independently and in conjunction with chemotherapy.
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Wang P, Wang ZY. Metal ions influx is a double edged sword for the pathogenesis of Alzheimer's disease. Ageing Res Rev 2017; 35:265-290. [PMID: 27829171 DOI: 10.1016/j.arr.2016.10.003] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 09/08/2016] [Accepted: 10/17/2016] [Indexed: 12/17/2022]
Abstract
Alzheimer's disease (AD) is a common form of dementia in aged people, which is defined by two pathological characteristics: β-amyloid protein (Aβ) deposition and tau hyperphosphorylation. Although the mechanisms of AD development are still being debated, a series of evidence supports the idea that metals, such as copper, iron, zinc, magnesium and aluminium, are involved in the pathogenesis of the disease. In particular, the processes of Aβ deposition in senile plaques (SP) and the inclusion of phosphorylated tau in neurofibrillary tangles (NFTs) are markedly influenced by alterations in the homeostasis of the aforementioned metal ions. Moreover, the mechanisms of oxidative stress, synaptic plasticity, neurotoxicity, autophagy and apoptosis mediate the effects of metal ions-induced the aggregation state of Aβ and phosphorylated tau on AD development. More importantly, imbalance of these mechanisms finally caused cognitive decline in different experiment models. Collectively, reconstructing the signaling network that regulates AD progression by metal ions may provide novel insights for developing chelators specific for metal ions to combat AD.
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Affiliation(s)
- Pu Wang
- College of Life and Health Sciences, Northeastern University, No. 3-11, Wenhua Road, Shenyang, 110819, PR China.
| | - Zhan-You Wang
- College of Life and Health Sciences, Northeastern University, No. 3-11, Wenhua Road, Shenyang, 110819, PR China.
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Shanahan CM, Furmanik M. Endoplasmic Reticulum Stress in Arterial Smooth Muscle Cells: A Novel Regulator of Vascular Disease. Curr Cardiol Rev 2017; 13:94-105. [PMID: 27758694 PMCID: PMC5440785 DOI: 10.2174/1573403x12666161014094738] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 09/24/2016] [Accepted: 10/06/2016] [Indexed: 01/27/2023] Open
Abstract
Cardiovascular disease continues to be the leading cause of death in industrialised societies. The idea that the arterial smooth muscle cell (ASMC) plays a key role in regulating many vascular pathologies has been gaining importance, as has the realisation that not enough is known about the pathological cellular mechanisms regulating ASMC function in vascular remodelling. In the past decade endoplasmic reticulum (ER) stress and the unfolded protein response (UPR) have been recognised as a stress response underlying many physiological and pathological processes in various vascular cell types. Here we summarise what is known about how ER stress signalling regulates phenotypic switching, trans/dedifferentiation and apoptosis of ASMCs and contributes to atherosclerosis, hypertension, aneurysms and vascular calcification.
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Affiliation(s)
- Catherine M Shanahan
- British Heart Foundation Centre of Research Excellence, Cardiovascular Division, James Black Centre, King's College London, 125 Coldharbour Lane, London, SE5 9NU, United Kingdom
| | - Malgorzata Furmanik
- British Heart Foundation Centre of Research Excellence, Cardiovascular Division, James Black Centre, King's College London, 125 Coldharbour Lane, London, SE5 9NU, United Kingdom
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16
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Kim HJ, Ohk B, Yoon HJ, Kang WY, Seong SJ, Kim SY, Yoon YR. Docosahexaenoic acid signaling attenuates the proliferation and differentiation of bone marrow-derived osteoclast precursors and promotes apoptosis in mature osteoclasts. Cell Signal 2017; 29:226-232. [DOI: 10.1016/j.cellsig.2016.11.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 11/03/2016] [Accepted: 11/07/2016] [Indexed: 12/21/2022]
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17
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Nagaraj C, Tang B, Nagy BM, Papp R, Jain PP, Marsh LM, Meredith AL, Ghanim B, Klepetko W, Kwapiszewska G, Weir EK, Olschewski H, Olschewski A. Docosahexaenoic acid causes rapid pulmonary arterial relaxation via KCa channel-mediated hyperpolarisation in pulmonary hypertension. Eur Respir J 2016; 48:1127-1136. [PMID: 27540020 DOI: 10.1183/13993003.01814-2015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 05/14/2016] [Indexed: 01/17/2023]
Abstract
Cardioprotective benefits of ω-3 fatty acids such as docosahexaenoic acid (DHA) are well established, but the regulatory effect of DHA on vascular tone and pressure in pulmonary hypertension is largely unknown.As DHA is a potent regulator of K+ channels, we hypothesised that DHA modulates the membrane potential of pulmonary artery smooth muscle cells (PASMCs) through K+ channels and thus exerts its effects on pulmonary vascular tone and pressure.We show that DHA caused dose-dependent activation of the calcium-activated K+ (KCa) current in primary human PASMCs and endothelium-dependent relaxation of pulmonary arteries. This vasodilation was significantly diminished in KCa-/- (Kcnma1-/-) mice. In vivo, acute DHA returned the right ventricular systolic pressure in the chronic hypoxia-induced pulmonary hypertension animal model to the level of normoxic animals. Interestingly, in idiopathic pulmonary arterial hypertension the KCa channels and their subunits were upregulated. DHA activated KCa channels in these human PASMCs and hyperpolarised the membrane potential of the idiopathic pulmonary arterial hypertension PASMCs to that of the PASMCs from healthy donors.Our findings indicate that DHA activates PASMC KCa channels leading to vasorelaxation in pulmonary hypertension. This effect might provide a molecular explanation for the previously undescribed role of DHA as an acute vasodilator in pulmonary hypertension.
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Affiliation(s)
- Chandran Nagaraj
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria Experimental Anesthesiology, Dept of Anesthesia and Intensive Care Medicine, Medical University of Graz, Graz, Austria
| | - Bi Tang
- Experimental Anesthesiology, Dept of Anesthesia and Intensive Care Medicine, Medical University of Graz, Graz, Austria Dept of Cardiovascular Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu Anhui, PR China
| | - Bence M Nagy
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria Institute of Physiology, Medical University of Graz, Graz, Austria
| | - Rita Papp
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Pritesh P Jain
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Leigh M Marsh
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Andrea L Meredith
- Dept of Physiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Bahil Ghanim
- Division of Thoracic Surgery, Dept of Surgery, Medical University of Vienna, Vienna, Austria
| | - Walter Klepetko
- Division of Thoracic Surgery, Dept of Surgery, Medical University of Vienna, Vienna, Austria
| | - Grazyna Kwapiszewska
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria Experimental Anesthesiology, Dept of Anesthesia and Intensive Care Medicine, Medical University of Graz, Graz, Austria
| | - E Kenneth Weir
- Dept of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Horst Olschewski
- Division of Pulmonology, Dept of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Andrea Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria Institute of Physiology, Medical University of Graz, Graz, Austria
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The unfolded protein response in the therapeutic effect of hydroxy-DHA against Alzheimer's disease. Apoptosis 2015; 20:712-24. [PMID: 25663172 DOI: 10.1007/s10495-015-1099-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The unfolded protein response (UPR) and autophagy are two cellular processes involved in the clearing of intracellular misfolded proteins. Both pathways are targets for molecules that may serve as treatments for several diseases, including neurodegenerative disorders like Alzheimer's disease (AD). In the present work, we show that 2-hydroxy-DHA (HDHA), a docosahexaenoic acid (DHA) derivate that restores cognitive function in a transgenic mouse model of AD, modulates UPR and autophagy in differentiated neuron-like SH-SY5Y cells. Mild therapeutic HDHA exposure induced UPR activation, characterized by the up-regulation of the molecular chaperone Bip as well as PERK-mediated stimulation of eIF2α phosphorylation. Key proteins involved in initiating autophagy, such as beclin-1, and several Atg proteins involved in autophagosome maturation (Atg3, Atg5, Atg12 and Atg7), were also up-regulated on exposure to HDHA. Moreover, when HDHA-mediated autophagy was studied after amyloid-β peptide (Aβ) stimulation to mimic the neurotoxic environment of AD, it was associated with increased cell survival, suggesting that HDHA driven modulation of this process at least in part mediates the neuroprotective effects of this new anti-neurodegenerative drug. The present results in part explain the pharmacological effects of HDHA inducing full recovery of the cognitive scores in murine models of AD.
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Lycopene Protects against Hypoxia/Reoxygenation Injury by Alleviating ER Stress Induced Apoptosis in Neonatal Mouse Cardiomyocytes. PLoS One 2015; 10:e0136443. [PMID: 26291709 PMCID: PMC4546295 DOI: 10.1371/journal.pone.0136443] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 08/03/2015] [Indexed: 12/12/2022] Open
Abstract
Endoplasmic reticulum (ER) stress induced apoptosis plays a pivotal role in myocardial ischemia/reperfusion (I/R)-injury. Inhibiting ER stress is a major therapeutic target/strategy in treating cardiovascular diseases. Our previous studies revealed that lycopene exhibits great pharmacological potential in protecting against the I/R-injury in vitro and vivo, but whether attenuation of ER stress (and) or ER stress-induced apoptosis contributes to the effects remains unclear. In the present study, using neonatal mouse cardiomyocytes to establish an in vitro model of hypoxia/reoxygenation (H/R) to mimic myocardium I/R in vivo, we aimed to explore the hypothesis that lycopene could alleviate the ER stress and ER stress-induced apoptosis in H/R-injury. We observed that lycopene alleviated the H/R injury as revealed by improving cell viability and reducing apoptosis, suppressed reactive oxygen species (ROS) generation and improved the phosphorylated AMPK expression, attenuated ER stress as evidenced by decreasing the expression of GRP78, ATF6 mRNA, sXbp-1 mRNA, eIF2α mRNA and eIF2α phosphorylation, alleviated ER stress-induced apoptosis as manifested by reducing CHOP/GADD153 expression, the ratio of Bax/Bcl-2, caspase-12 and caspase-3 activity in H/R-treated cardiomyocytes. Thapsigargin (TG) is a potent ER stress inducer and used to elicit ER stress of cardiomyocytes. Our results showed that lycopene was able to prevent TG-induced ER stress as reflected by attenuating the protein expression of GRP78 and CHOP/GADD153 compared to TG group, significantly improve TG-caused a loss of cell viability and decrease apoptosis in TG-treated cardiomyocytes. These results suggest that the protective effects of lycopene on H/R-injury are, at least in part, through alleviating ER stress and ER stress-induced apoptosis in neonatal mouse cardiomyocytes.
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Cui ZG, Ogawa R, Tsuneyama K, Yan G, Tao L, Shimomura A, Inadera H. Insight into the molecular mechanism of heme oxygenase-1 induction by docosahexaenoic acid in U937 cells. Chem Biol Interact 2015; 238:180-8. [PMID: 26163453 DOI: 10.1016/j.cbi.2015.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 06/28/2015] [Accepted: 07/06/2015] [Indexed: 01/01/2023]
Abstract
Heme oxygenase-1 (HO-1) has anti-inflammatory effects on myeloid cells in response to various stimuli. To date, little is known about whether fatty acids can affect HO-1 induction. Here, we report the induction of HO-1 by docosahexaenoic acid (DHA) and the associated molecular mechanisms in human myelomonocytic lymphoma U937 cells. When U937 cells were treated with DHA, eicosapentaenoic acid, palmitic acid or oleic acid, DHA was the most effective inducer of HO-1. The activation of AKT and glycogen synthase kinase-3β did not significantly change after DHA treatment. However, DHA increased the activation of extracellular signal-regulated kinases 1 and 2 (ERK1/2), but not of other mitogen-activated protein kinases such as p38 and JNK. The increase in HO-1 expression was significantly inhibited by U0126, an ERK1/2 inhibitor. Nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf-2) and its binding to the HO-1 promoter significantly increased upon DHA treatment. An increase in intracellular reactive oxygen species was detected by dichlorofluorescein diacetate, but not by hydroethidium or 2-[6-(4-hydroxy)phenoxy-3H-xanthen-3-on-9-yl] benzoic acid after DHA treatment. Pretreatment with NAC dramatically inhibited the ERK1/2 activation, binding of Nrf-2 to antioxidant response elements (AREs) located in the HO-1 promoter and the induction of HO-1 by DHA. In conclusion, DHA increased HO-1 expression in U937 cells via activation of ERK1/2 and increased Nrf-2 binding to ARE in the HO-1 promoter. These findings will help develop better strategies for treating inflammatory disorders with DHA.
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Affiliation(s)
- Zheng-Guo Cui
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Ryohei Ogawa
- Department of Radiological Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Koichi Tsuneyama
- Department of Diagnostic Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Gen Yan
- Department of Radiology, The Affiliated Hospital of Jiangnan University, Wuxi 21422, PR China.
| | - Lingling Tao
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Akiko Shimomura
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Hidekuni Inadera
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
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Venturini D, Simão ANC, Urbano MR, Dichi I. Effects of extra virgin olive oil and fish oil on lipid profile and oxidative stress in patients with metabolic syndrome. Nutrition 2015; 31:834-40. [DOI: 10.1016/j.nut.2014.12.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 11/12/2014] [Accepted: 12/08/2014] [Indexed: 12/14/2022]
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22
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Wang C, Luo F, Zhou Y, Du X, Shi J, Zhao X, Xu Y, Zhu Y, Hong W, Zhang J. The therapeutic effects of docosahexaenoic acid on oestrogen/androgen-induced benign prostatic hyperplasia in rats. Exp Cell Res 2015; 345:125-33. [PMID: 25849092 DOI: 10.1016/j.yexcr.2015.03.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 03/27/2015] [Accepted: 03/28/2015] [Indexed: 12/18/2022]
Abstract
Benign prostatic hyperplasia (BPH) is one of the major disorders of the urinary system in elderly men. Docosahexaenoic acid (DHA) is the main component of n-3 polyunsaturated fatty acids (n-3 PUFAs) and has nerve protective, anti-inflammatory and tumour-growth inhibitory effects. Here, the therapeutic potential of DHA in treating BPH was investigated. Seal oil effectively prevented the development of prostatic hyperplasia induced by oestradiol/testosterone in a rat model by suppressing the increase of the prostatic index (PI), reducing the thickness of the peri-glandular smooth muscle layer, inhibiting the proliferation of both prostate epithelial and stromal cells, and downregulating the expression of androgen receptor (AR) and oestrogen receptor α (ERα). An in vitro study showed that DHA inhibited the growth of the human prostate stromal cell line WPMY-1 and the epithelial cell line RWPE-1 in a dose- and time-dependent manner. In both cell lines, the DHA arrested the cell cycle in the G2/M phase. In addition, DHA also reduced the expression of ERα and AR in the WPMY-1 and RWPE-1 cells. These results indicate that DHA inhibits the multiplication of prostate stromal and epithelial cells through a mechanism that may involve cell cycle arrest and the downregulation of ERα and AR expression.
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Affiliation(s)
- Chao Wang
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Bioactive Materials Key Lab of Ministry of Education, Nankai University, Tianjin 300071, China
| | - Fei Luo
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Ying Zhou
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Bioactive Materials Key Lab of Ministry of Education, Nankai University, Tianjin 300071, China
| | - Xiaoling Du
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Bioactive Materials Key Lab of Ministry of Education, Nankai University, Tianjin 300071, China
| | - Jiandang Shi
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Bioactive Materials Key Lab of Ministry of Education, Nankai University, Tianjin 300071, China
| | - Xiaoling Zhao
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Bioactive Materials Key Lab of Ministry of Education, Nankai University, Tianjin 300071, China
| | - Yong Xu
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Yan Zhu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Wei Hong
- Department of Histology and Embryology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China.
| | - Ju Zhang
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Bioactive Materials Key Lab of Ministry of Education, Nankai University, Tianjin 300071, China.
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Zgheel F, Alhosin M, Rashid S, Burban M, Auger C, Schini-Kerth VB. Redox-sensitive induction of Src/PI3-kinase/Akt and MAPKs pathways activate eNOS in response to EPA:DHA 6:1. PLoS One 2014; 9:e105102. [PMID: 25133540 PMCID: PMC4136823 DOI: 10.1371/journal.pone.0105102] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 07/21/2014] [Indexed: 02/07/2023] Open
Abstract
Aims Omega-3 fatty acid products containing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have vasoprotective effects, in part, by stimulating the endothelial formation of nitric oxide (NO). This study determined the role of the EPA:DHA ratio and amount, and characterized the mechanism leading to endothelial NO synthase (eNOS) activation. Methods and Results EPA:DHA 6∶1 and 9∶1 caused significantly greater endothelium-dependent relaxations in porcine coronary artery rings than EPA:DHA 3∶1, 1∶1, 1∶3, 1∶6, 1∶9, EPA and DHA alone, and EPA:DHA 6∶1 with a reduced EPA + DHA amount, which were inhibited by an eNOS inhibitor. Relaxations to EPA:DHA 6∶1 were insensitive to cyclooxygenase inhibition, and reduced by inhibitors of either oxidative stress, Src kinase, PI3-kinase, p38 MAPK, MEK, or JNK. EPA:DHA 6∶1 induced phosphorylation of Src, Akt, p38 MAPK, ERK, JNK and eNOS; these effects were inhibited by MnTMPyP. EPA:DHA 6∶1 induced the endothelial formation of ROS in coronary artery sections as assessed by dihydroethidium, and of superoxide anions and hydrogen peroxide in cultured endothelial cells as assessed by electron spin resonance with the spin probe CMH, and the Amplex Red based assay, respectively. Conclusion Omega-3 fatty acids cause endothelium-dependent NO-mediated relaxations in coronary artery rings, which are dependent on the EPA:DHA ratio and amount, and involve an intracellular activation of the redox-sensitive PI3-kinase/Akt and MAPKs pathways to activate eNOS.
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Affiliation(s)
- Faraj Zgheel
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Mahmoud Alhosin
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Sherzad Rashid
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Mélanie Burban
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Cyril Auger
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
| | - Valérie B. Schini-Kerth
- CNRS UMR 7213 Laboratoire de Biophotonique et Pharmacologie, Université de Strasbourg, Faculté de Pharmacie, Illkirch, France
- * E-mail:
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Hsu JH, Liou SF, Yang SN, Wu BN, Dai ZK, Chen IJ, Yeh JL, Wu JR. B-type natriuretic peptide inhibits angiotensin II-induced proliferation and migration of pulmonary arterial smooth muscle cells. Pediatr Pulmonol 2014; 49:734-44. [PMID: 24167111 DOI: 10.1002/ppul.22904] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 06/21/2013] [Accepted: 08/13/2013] [Indexed: 01/10/2023]
Abstract
Pulmonary vascular remodeling, characterized by disordered proliferation and migration of pulmonary arterial smooth muscle cells (PASMCs), is a pathognomonic feature of pulmonary arterial hypertension. Thus, pharmacologic strategy targeting on anti-proliferation and anti-migration of PASMCs may have therapeutic implications for PAH. Here we investigated the effects and underlying mechanisms of B-type natriuretic peptide (BNP) on angiotensin II (Ang II)-induced proliferation and migration of PASMCs. Proliferation and migration of PASMCs cultured from Wistar rats were induced by Ang II, with or without BNP treatment. In addition, potential underlying mechanisms including cell cycle progression, Ca(2+) overload, reactive oxygen species (ROS) production, signal transduction of MAPK and Akt, and the cGMP/PKG pathway were examined. We found that BNP inhibited Ang II-induced PASMCs proliferation and migration dose dependently. BNP could also arrest the cell cycle progression in the G0/G1-phase. In addition, BNP attenuated intracellular calcium overload caused by Ang II. Moreover, Ang II-induced ROS production was mitigated by BNP, with associated down-regulation of NAD(P)H oxidase 1 (Nox1) and reduced mitochondrial ROS production. Finally, Ang II-activated MAPKs and Akt were also counteracted by BNP. Of note, all these effects of BNP were abolished by a PKG inhibitor (Rp-8-Br-PET-cGMPS). In conclusion, BNP inhibits Ang II-induced PASMCs proliferation and migration. These effects are potentially mediated by decreased calcium influx, reduced ROS production by Nox1 and mitochondria, and down-regulation of MAPK and Akt signal transduction, through the cGMP/PKG pathway. Therefore, this study implicates that BNP may have a therapeutic role in pulmonary vascular remodeling.
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Affiliation(s)
- Jong-Hau Hsu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Pediatrics, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Sunkaria A, Sharma DR, Wani WY, Gill KD. 4-Hydroxy TEMPO attenuates dichlorvos induced microglial activation and apoptosis. ACS Chem Neurosci 2014; 5:115-27. [PMID: 24369695 DOI: 10.1021/cn400206w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Microglial cells have been implicated in various neurodegenerative diseases. Previous studies from our lab have shown that dichlorvos (an organophosphate) could induce Parkinson's like features in rats. Recently, we have shown that dichlorvos can induce microglial activation, and if not checked in time could ultimately induce neuronal apoptosis. However, this activation does not always pose a threat to the neurons. Activated microglia also secrete various neuronal growth factors, suggesting that they have beneficial roles in CNS repair. Therefore, it is essential to control their detrimental functions selectively. Here, we tried to find out how microglial cells behave when exposed to dichlorvos in either the presence or absence of potent nitric oxide scavenger and superoxide dismutase mimetic, 4-hydroxy TEMPO (4-HT). Wistar rat pups (1 day) were used to isolate and culture primary microglial cells. We found 4-HT pretreatment successfully attenuated the dichlorvos mediated microglial activation. Moreover, 4-HT pretreatment decreased the up-regulated levels of p53 and its downstream effector, p21. The expression of various cell cycle regulators such as Chk2, CDC25a, and cyclin A remained close to their basal levels when 4-HT pretreatment was given. DNA fragmentation analysis showed significant reduction in the DNA damage of 4-HT pretreated microglia as compared to dichlorvos treated cells. In addition to this, we found 4-HT pretreatment prevented the microglial cells from undergoing apoptotic cell death even after 48 h of dichlorvos exposure. Taken together, our results showed 4-HT pretreatment could successfully ameliorate the dichlorvos induced microglial cell damage.
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Affiliation(s)
- Aditya Sunkaria
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Deep Raj Sharma
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Willayat Yousuf Wani
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Kiran Dip Gill
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
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Song J, Kwon N, Lee MH, Ko YG, Lee JH, Kim OY. Association of serum phospholipid PUFAs with cardiometabolic risk: beneficial effect of DHA on the suppression of vascular proliferation/inflammation. Clin Biochem 2014; 47:361-8. [PMID: 24457065 DOI: 10.1016/j.clinbiochem.2014.01.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 12/15/2013] [Accepted: 01/09/2014] [Indexed: 01/17/2023]
Abstract
OBJECTIVES Blood or dietary polyunsaturated fatty acids (PUFAs), particularly ω3-PUFAs were known for cardiovascular protective effect. However, the results are still controversial. We aimed to investigate the association of serum phospholipid PUFAs with cardiometabolic risk through cross-sectional/experimental studies. DESIGN/METHODS Serum phospholipid FA compositions and cardiometabolic risk parameters were measured in controls [healthy: n=987, metabolic syndrome (MetS): n=214] and CAD patients (CAD-only: n=152, CAD+MetS: n=56). Experimental assays were performed in vascular smooth muscle cells (VSMCs). RESULTS Major cardiometabolic risk markers, i.e. insulin resistance, hs-C-reactive proteins, and malondialdehyde were higher, and adiponectin and LDL particle size were lower in CAD patients, particularly those with MetS than in healthy controls. Serum linoleic acid (LA, C18:2ω-6) was lowest and dihomo-γ-linolenic acids (DGLAs, C20:3ω-6) were highest in CAD patients with MetS among the 4 groups. Docosahexaenoic acid (DHA, C22:6ω-3) was lower and arachidonic acid (AA, C20:4ω-6) and ω6/ω3-PUFAs were higher in CAD patients than in controls. ω3-PUFAs were significantly lower in CAD patients, particularly those with MetS than in healthy controls. Multiple regression analysis revealed that AA and DHA among serum FAs were mainly associated with the cardiometabolic risk (β'-coefficients for AA:0.336; DHA: -0.296) together with age, MetS factors, LA, DGLA and gender (r=0.529, p<0.001). Under LPS-induced stress condition, LA and DHA significantly suppressed VSMC proliferation. DHA also up-regulated the phosphorylation of p38 and ERK, and dramatically inhibited nuclear translocation of NF-κB-p65 in VSMCs. CONCLUSION AA and DHA were mainly associated with cardiometabolic risk. Particularly, DHA may be effective on suppression of vascular proliferation and inflammation.
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Affiliation(s)
- Juhyun Song
- Interdisciplinary Course of Science for Aging, Yonsei University, Seoul, Republic of Korea
| | - Nayeon Kwon
- Department of Food and Nutrition, Yonsei University, Seoul, Republic of Korea
| | - Mi-Hyang Lee
- Department of Food and Nutrition, Yonsei University, Seoul, Republic of Korea
| | - Young-Guk Ko
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Republic of Korea
| | - Jong Ho Lee
- Department of Food and Nutrition, Yonsei University, Seoul, Republic of Korea.
| | - Oh Yoen Kim
- Department of Food Science and Nutrition, Dong-A University, Busan, Republic of Korea.
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Yan J, Chen R, Liu P, Gu Y. Docosahexaenoic acid attenuates hypoxic pulmonary vasoconstriction by activating the large conductance Ca2+-activated K+ currents in pulmonary artery smooth muscle cells. Pulm Pharmacol Ther 2013; 28:9-16. [PMID: 24269522 DOI: 10.1016/j.pupt.2013.11.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2013] [Revised: 10/14/2013] [Accepted: 11/11/2013] [Indexed: 01/31/2023]
Abstract
BACKGROUND The inhibition of potassium (K(+)) channels plays an important role in pulmonary circulation for its close relationship with hypoxic pulmonary vasoconstriction (HPV). Docosahexaenoic acid (DHA), a n-3 polyunsaturated fatty acid, is well known for its prevention and treatment of cardiovascular diseases. However the role which DHA plays in HPV remains unclear. Here, we tested the hypothesis that DHA contributes to pulmonary vascular tone by activating the large conductance Ca(2+)-activated K(+) (BKCa) channels via calcium sparks. METHODS AND RESULTS Isolated resistance pulmonary artery preparation was used to study the vasomotor response to DHA. Pulmonary artery smooth muscle cells (PASMCs) were isolated from third- to fourth order branches of pulmonary arteries by collagenase digestion method. BKCa and the voltage-dependent potassium channel (Kv) currents in PASMCs were measured by the whole-cell patch-clamp technique. Fluo-8 was used as a fluorescence indicator for the real-time measurement of calcium dynamics in PASMCs. DHA dilated resistance pulmonary arteries in a dose-dependent manner in hypoxic or normoxic solution, and the effects of DHA were abolished after pre-treatment with heparin (100 μg/ml), a 1,4,5-triphosphate (IP3) receptor (IP3R) inhibitor or iberiotoxin (100 nmol/L), a specific inhibitor of BKCa channel. DHA activated BKCa channels in a dose-dependent manner, however, the activation induced by DHA was not seen in PASMCs pre-incubated with heparin. While the Kv currents decreased from 102.6 ± 5.4 to 36.5 ± 6.7 pA/pF by addition of 10 μmol/L DHA. DHA also caused calcium sparks in PASMCs. Moreover, hypoxia inhibited BKCa currents in PASMCs, but this inhibition was reversed by DHA. CONCLUSION Our findings suggest that DHA is a novel BKCa opener in PASMCs, which may indicate a potential therapeutic role in HPV.
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Affiliation(s)
- Jinchuan Yan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province 212001, China.
| | - Rui Chen
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province 212001, China
| | - Peijing Liu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province 212001, China.
| | - Yuchun Gu
- Institute of Molecular Medicine, Peking University, Beijing 100871, China
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Yan J, Chen R, Liu P, Gu Y. Docosahexaenoic acid inhibits development of hypoxic pulmonary hypertension: In vitro and in vivo studies. Int J Cardiol 2013; 168:4111-6. [DOI: 10.1016/j.ijcard.2013.07.073] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2012] [Revised: 07/02/2013] [Accepted: 07/07/2013] [Indexed: 01/28/2023]
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Stulnig G, Frisch MT, Crnkovic S, Stiegler P, Sereinigg M, Stacher E, Olschewski H, Olschewski A, Frank S. Docosahexaenoic acid (DHA)-induced heme oxygenase-1 attenuates cytotoxic effects of DHA in vascular smooth muscle cells. Atherosclerosis 2013; 230:406-13. [PMID: 24075775 DOI: 10.1016/j.atherosclerosis.2013.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 07/19/2013] [Accepted: 08/03/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Docosahexaenoic acid (DHA), a member of n-3 polyunsaturated fatty acids (n-3 PUFA) is a potent regulator of molecular events implicated in cardiovascular health. In a previous study we found that Ca(2+)-dependent oxidative stress is the central and initial event responsible for induction of unfolded protein response (UPR), cell cycle arrest and apoptosis in DHA treated primary human smooth muscle cells isolated from small pulmonary artery (hPASMC). In the present study we examined the impact of heme oxygenase (HO)-1, induced by DHA, on DHA-induced oxidative stress, UPR, cell proliferation and apoptosis in hPASMC. METHODS & RESULTS DHA led to a time- and concentration-dependent increase in HO-1 mRNA and protein levels in hPASMC. The DHA-induced HO-1 upregulation could be attenuated by preincubation of cells with a strong antioxidant Tempol or by siRNA-mediated depletion of nuclear factor erythroid 2-related factor-2 (Nrf2). In DHA-treated hPASMC, depletion of HO-1 by siRNA-mediated silencing resulted in increased levels of reactive oxygen species (ROS) and increased duration of UPR, the latter revealed by monitoring of spliced X-box binding protein 1 (XBP-1) variant. Moreover, HO-1 silencing augmented apoptosis in DHA-treated hPASMC as found by increased numbers of cleaved caspase-3-positive cells. HO-1 silencing did not affect proliferation of hPASMC exposed to DHA. CONCLUSION Our results indicate that DHA-induced, ROS-dependent upregulation of HO-1 attenuates oxidative stress, UPR and apoptosis in DHA-treated hPASMC.
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Affiliation(s)
- Gabriel Stulnig
- Institute of Molecular Biology and Biochemistry, Center of Molecular Medicine, Medical University of Graz, Harrachgasse 21/III, A-8010 Graz, Austria
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Abstract
PURPOSE OF REVIEW Dietary n-3 polyunsaturated fatty acids (n-3 PUFAs) may be related to a number of chronic metabolic abnormalities, including metabolic syndrome. This review presents an update on the effects of n-3 PUFAs on risk factors of metabolic syndrome, especially adipose tissue inflammation, oxidative stress and underlying mechanisms of these effects. RECENT FINDINGS Anti-inflammatory actions of n-3 PUFAs are thought to be mediated by the formation of their active metabolites (eicosanoids and other lipid mediators) as well as their regulation of the production of inflammatory mediators (e.g., adipocytokines, cytokines) and immune cell infiltration into adipose tissue. n-3 PUFAs mediate these effects by modulating several pathways, such as those involving nuclear factor-κB, peroxisome proliferator-activated receptors and Toll-like receptors. The antioxidative effects of n-3 PUFAs in adipocytes appear to inhibit reactive oxygen species production and alter mitochondrial function. SUMMARY This review summarizes the evidence for beneficial effects of n-3 PUFAs on adipose tissue inflammation and oxidative stress. More studies are necessary to investigate the mechanisms underlying these effects and to relate this topic to human health.
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Affiliation(s)
- Chaonan Fan
- Key Laboratory of Major Disease in Children and National Key Discipline of Pediatrics (Capital Medical University), Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
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