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Gao X, Hu W, Qian D, Bai X, He H, Li L, Sun S. The Mechanisms of Ferroptosis Under Hypoxia. Cell Mol Neurobiol 2023; 43:3329-3341. [PMID: 37458878 PMCID: PMC10477166 DOI: 10.1007/s10571-023-01388-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 07/06/2023] [Indexed: 09/05/2023]
Abstract
Ferroptosis is a new form of programmed cell death, which is characterized by the iron-dependent accumulation of lipid peroxidation and increase of ROS, resulting in oxidative stress and cell death. Iron, lipid, and multiple signaling pathways precisely control the occurrence and implementation of ferroptosis. The pathways mainly include Nrf2/HO-1 signaling pathway, p62/Keap1/Nrf2 signaling pathway. Activating p62/Keap1/Nrf2 signaling pathway inhibits ferroptosis. Nrf2/HO-1 signaling pathway promotes ferroptosis. Furthermore, some factors also participate in the occurrence of ferroptosis under hypoxia, such as HIF-1, NCOA4, DMT1. Meanwhile, ferroptosis is related with hypoxia-related diseases, such as MIRI, cancers, and AKI. Accordingly, ferroptosis appears to be a therapeutic target for hypoxia-related diseases.
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Affiliation(s)
- Xin Gao
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital, Kunming Medical University, No. 295, Xichang Road, Wuhua District, Kunming, 650032, China
- 2020 Clinical Medicine Class 6, Kunming Medical University, Kunming, 650500, China
| | - Wei Hu
- Department of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, 650032, China
| | - Dianlun Qian
- Department of Cardiothoracic Surgery, First Affiliated Hospital, Kunming Medical University, Kunming, 650032, China
| | - Xiangfeng Bai
- Department of Cardiothoracic Surgery, First Affiliated Hospital, Kunming Medical University, Kunming, 650032, China
| | - Huilin He
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital, Kunming Medical University, No. 295, Xichang Road, Wuhua District, Kunming, 650032, China
| | - Lin Li
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital, Kunming Medical University, No. 295, Xichang Road, Wuhua District, Kunming, 650032, China
| | - Shibo Sun
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital, Kunming Medical University, No. 295, Xichang Road, Wuhua District, Kunming, 650032, China.
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2
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Docosahexaenoic Acid Counteracts the Hypoxic-Induced Inflammatory and Metabolic Alterations in 3T3-L1 Adipocytes. Nutrients 2022; 14:nu14214600. [PMID: 36364860 PMCID: PMC9659308 DOI: 10.3390/nu14214600] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/15/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022] Open
Abstract
Background: Hypoxia is caused by the excessive expansion of the white adipose tissue (AT) and is associated with obesity-related conditions such as insulin resistance, inflammation, and oxidative stress. Docosahexaenoic acid (DHA) is an omega-3 fatty acid reported to have beneficial health effects. However, the effects of DHA in AT against hypoxia-induced immune-metabolic perturbations in adipocytes exposed to low O2 tension are not well known. Consequently, this study aimed to evaluate the impact of DHA on markers of inflammation, metabolism, apoptosis, and oxidative stress in 3T3-L1 cell adipocytes exposed to low O2 tension (1% O2) induced hypoxia. Methods: The apoptosis and reactive oxygen species (ROS) rates were evaluated. Metabolic parameters such as lactate, FFA, glycerol release, glucose uptake, and ATP content were assessed by a fluorometer. The expression of HIF-1, GLUT1 and the secretion of adipocytokines such as leptin, adiponectin, and pro-inflammatory markers was evaluated. Results: DHA-treated hypoxic cells showed significantly decreased basal free fatty acid release, lactate production, and enhanced glucose consumption. In addition, DHA-treatment of hypoxic cells caused a significant reduction in the apoptosis rate and ROS production with decreased lipid peroxidation. Moreover, DHA-treatment of hypoxic cells caused a decreased secretion of pro-inflammatory markers (IL-6, MCP-1) and leptin and increased adiponectin secretion compared with hypoxic cells. Furthermore, DHA-treatment of hypoxic cells caused significant reductions in the expression of genes related to hypoxia (HIF-1, HIF-2), anaerobic metabolism (GLUT1 and Ldha), ATP production (ANT2), and fat metabolism (FASN and PPARY). Conclusion: This study suggests that DHA can exert potential anti-obesity effects by reducing the secretion of inflammatory adipokines, oxidative stress, lipolysis, and apoptosis.
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3
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Kong Z, Li B, Zhou C, He Q, Zheng Y, Tan Z. Multi-Omics Analysis of Mammary Metabolic Changes in Dairy Cows Exposed to Hypoxia. Front Vet Sci 2021; 8:764135. [PMID: 34722715 PMCID: PMC8553012 DOI: 10.3389/fvets.2021.764135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 09/14/2021] [Indexed: 12/14/2022] Open
Abstract
Hypoxia exposure can cause a series of physiological and biochemical reactions in the organism and cells. Our previous studies found the milk fat rate increased significantly in hypoxic dairy cows, however, its specific metabolic mechanism is unclear. In this experiment, we explored and verified the mechanism of hypoxia adaptation based on the apparent and omics results of animal experiments and in vitro cell model. The results revealed that hypoxia exposure was associated with the elevation of AGPAT2-mediated glycerophospholipid metabolism. These intracellular metabolic disorders consequently led to the lipid disorders associated with apoptosis. Our findings update the existing understanding of increased adaptability of dairy cows exposure to hypoxia at the metabolic level.
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Affiliation(s)
- Zhiwei Kong
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, China.,School of Food Engineering and Biotechnology, Hanshan Nornal University, Chaozhou, China
| | - Bin Li
- State Key Laboratory of Hulless Barley and Yak Germplasm Resources and Genetic Improvement, Institute of Animal Husbandry and Veterinary, Tibet Autonomous Regional Academy of Agricultural Sciences, Lhasa, China
| | - Chuanshe Zhou
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Qinghua He
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, China
| | - Yuzhong Zheng
- School of Food Engineering and Biotechnology, Hanshan Nornal University, Chaozhou, China
| | - Zhiliang Tan
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
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4
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Zhang T, Linghu KG, Lou R, Li Z, Liu J, Li R, Qin ZH, Guo B, Lin L. Autophagy-regulating miRNAs: potential targets for obesity and related metabolic disorders. Drug Discov Today 2021; 26:1532-1538. [PMID: 33549825 DOI: 10.1016/j.drudis.2021.01.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/07/2021] [Accepted: 01/15/2021] [Indexed: 01/07/2023]
Affiliation(s)
- Tian Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Ke-Gang Linghu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Ruohan Lou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Zhengqiu Li
- School of Pharmacy, Jinan University, Guangzhou 510630, China
| | - Jingxin Liu
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen 518000, Guangdong, China
| | - Rongsong Li
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen 518000, Guangdong, China
| | - Zheng-Hong Qin
- Department of Pharmacology, Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Bing Guo
- Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang 550025, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China.
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Vladov I, Petrova E, Pavlova E, Tinkov AA, Ajsuvakova OP, Skalny AV, Gluhcheva Y. Alterations in Blood Metabolic Parameters of Immature Mice After Subchronic Exposure to Cobalt Chloride. Biol Trace Elem Res 2021; 199:588-593. [PMID: 32405686 DOI: 10.1007/s12011-020-02161-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/15/2020] [Indexed: 11/30/2022]
Abstract
The wide use of cobalt (Co) in food, industry, and medical devices requires full elucidation of its biological effects on tissues and organs. The aim was to assess serum metabolic alterations in immature mice after subchronic exposure to CoCl2. Pregnant ICR mice were subjected to a daily dose of 75 mg cobalt chloride/kg body weight (CoCl2x6H2O) 2-3 days before they gave birth, and treatment continued until days 25 and 30 after delivery. The compound was dissolved in and obtained with regular tap water. ICP-DRC-MS analysis showed significantly elevated serum Co2+ and diverse alterations in metabolic parameters of 25- and 30-day-old pups after exposure to CoCl2. Cholesterol and urea levels were significantly elevated in day 25 mice while HDL-C and LDL-C were reduced. In day 30, Co-exposed mice LDL-C and triglycerides were significantly increased while the total cholesterol level remained unchanged. Alkaline phosphatase was significantly reduced in day 25 Co-exposed mice. Blood glucose level of Co-exposed mice remained close to the untreated controls. Total protein content was slightly increased in day 30 mice. Co-exposure reduced albumin content and albumin/globulin ratio but increased significantly globulin content. Co administration showed strong correlation with cholesterol, urea, and HDL-C in both day 25 and 30 mice. Inverse correlation was found with alkaline phosphatase and albumin for day 25 and with triglycerides, globulin, and total protein content in day 30 Co-exposed mice. Subchronic CoCl2 exposure of immature mice induced significant changes in key metabolic parameters suggesting possible further disturbances in energy metabolism, osteogenesis, and reproduction.
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Affiliation(s)
- Ivelin Vladov
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. Georgi Bonchev, Str., Bl. 25, 1113, Sofia, Bulgaria
| | - Emilia Petrova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. Georgi Bonchev, Str., Bl. 25, 1113, Sofia, Bulgaria
| | - Ekaterina Pavlova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. Georgi Bonchev, Str., Bl. 25, 1113, Sofia, Bulgaria
| | - Alexey A Tinkov
- Yaroslavl State University, Sovetskaya Str., 14, Yaroslavl, 150000, Russia
- IM Sechenov First Moscow State Medical University, Moscow, 119146, Russia
| | - Olga P Ajsuvakova
- Yaroslavl State University, Sovetskaya Str., 14, Yaroslavl, 150000, Russia
- Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg, 460000, Russia
| | - Anatoly V Skalny
- Yaroslavl State University, Sovetskaya Str., 14, Yaroslavl, 150000, Russia
- IM Sechenov First Moscow State Medical University, Moscow, 119146, Russia
| | - Yordanka Gluhcheva
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. Georgi Bonchev, Str., Bl. 25, 1113, Sofia, Bulgaria.
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Wu L, Wang Q, Guo F, Ma X, Wang J, Zhao Y, Yan Y, Qin G. Involvement of miR-27a-3p in diabetic nephropathy via affecting renal fibrosis, mitochondrial dysfunction, and endoplasmic reticulum stress. J Cell Physiol 2020; 236:1454-1468. [PMID: 32691413 DOI: 10.1002/jcp.29951] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/19/2020] [Accepted: 07/07/2020] [Indexed: 12/16/2022]
Abstract
Diabetic nephropathy (DN) is acknowledged as a serious chronic complication of diabetes mellitus. Nevertheless, its pathogenesis is complicated and unclear. Thus, in this study, the role of miR-27a-3p-prohibitin/TMBIM6 signaling axis in the progression of DN was elucidated. Type 2 diabetic db/db mice and high glucose (HG)-challenged HK-2 cells were used as in vivo and in vitro models. Our results showed that miR-27a-3p was upregulated and prohibitin or transmembrane BAX inhibitor motif containing 6 (TMBIM6) was downregulated in the kidney tissues of db/db mice and HG-treated HK-2 cells. Silencing miR-27a-3p enhanced the expression of prohibitin and TMBIM6 in the kidney tissues and HK-2 cells. Inhibition of miR-27a-3p improved functional injury, as evidenced by decreased blood glucose, urinary albumin, serum creatinine, and blood urea nitrogen levels. MiR-27a-3p silencing ameliorated renal fibrosis, reflected by reduced profibrogenic genes (e.g., transforming growth factor β1, fibronectin, collagen I and III, and α-smooth muscle actin). Furthermore, inhibition of miR-27a-3p relieved mitochondrial dysfunction in the kidney of db/db mice, including upregulation of mitochondrial membrane potential, complex I and III activities, adenosine triphosphate, and mitochondrial cytochrome C, as well as suppressing reactive oxygen species production. In addition, miR-27a-3p silencing attenuated endoplasmic reticulum (ER) stress, reflected by reduced expression of p-IRE1α, p-eIF2α, XBP1s, and CHOP. Mechanically, we identified prohibitin and TMBIM6 as direct targets of miR-27a-3p. Inhibition of miR-27a-3p protected HG-treated HK-2 cells from apoptosis, extracellular matrix accumulation, mitochondrial dysfunction, and ER stress by regulating prohibitin or TMBIM6. Taken together, we reveal that miR-27a-3p-prohibitin/TMBIM6 signaling axis regulates the progression of DN, which can be a potential therapeutic target.
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Affiliation(s)
- Lina Wu
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qingzhu Wang
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Feng Guo
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaojun Ma
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiao Wang
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanyan Zhao
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yushan Yan
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guijun Qin
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Nasution LS, Jusuf AA, Jusman SW, Sadikin M. Hypoxia and autophagic response of obese adult rat adipocytes which differ in nutritional state during childhood. J Clin Biochem Nutr 2020; 66:132-138. [PMID: 32231409 DOI: 10.3164/jcbn.19-74] [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: 08/25/2019] [Accepted: 09/29/2019] [Indexed: 11/22/2022] Open
Abstract
The prevalence of obesity in adults is increasing worldwide, which is problematic since obesity is associated with degenerative diseases. Nowadays Indonesia is facing an interesting phenomenon since there are adults who have been obese since childhood and others who conversely were undernourished while young. The biological differences of these two types of obesities are not well understood. This study aims to analyse the difference in the size and number of visceral adipocytes, HIF-1α, HIF-2α and MAP1LC3A/LC3 in obese adult rat groups that were undernourished at a young age compared to groups who were normal or even already fat from childhood. We analyzed Hif-1α, Hif-2α, Lc3 mRNA by RT-qPCR; HIF-1α, HIF-2α, MAP1LC3A/LC3 protein level by ELISA. The HIF-1α and HIF-2α protein level of visceral adipocytes derived from the group of rat which were undernourished while young increased significantly compared to the group which was overnourished. The visceral adipocytes of the group which was overnourished since childhood showed an increase in Hif-2α mRNA level. The Lc3 mRNA of the rat group which were undernourished since young increased significantly compared to rat group which was obese since childhood.
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Affiliation(s)
- Lailan Safina Nasution
- Doctoral Programme in Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Salemba Raya 4 Jakarta 10430, Indonesia.,Department of Nutrition, Faculty of Medicine, Universitas Muhammadiyah Jakarta, K.H. Ahmad Dahlan Jakarta 15419, Indonesia
| | - Ahmad Aulia Jusuf
- Department of Histology, Faculty of Medicine, Universitas Indonesia, Salemba Raya 4 Jakarta 10430, Indonesia
| | - Sri Widia Jusman
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitas Indonesia, Salemba Raya 4 Jakarta 10430, Indonesia.,Center of Hypoxia and Oxidative Stress Studies, Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitas Indonesia, Salemba Raya 4 Jakarta 10430, Indonesia
| | - Mohamad Sadikin
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitas Indonesia, Salemba Raya 4 Jakarta 10430, Indonesia.,Center of Hypoxia and Oxidative Stress Studies, Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitas Indonesia, Salemba Raya 4 Jakarta 10430, Indonesia
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Higashida K, Takeuchi N, Inoue S, Hashimoto T, Nakai N. Iron deficiency attenuates catecholamine‑stimulated lipolysis via downregulation of lipolysis‑related proteins and glucose utilization in 3T3‑L1 adipocytes. Mol Med Rep 2020; 21:1383-1389. [PMID: 32016466 DOI: 10.3892/mmr.2020.10929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 10/29/2019] [Indexed: 11/06/2022] Open
Abstract
Iron deficiency has been associated with obesity and related metabolic disorders. The aim of the present study was to evaluate the effect of iron deficiency on fat metabolism, particularly regarding the lipolytic activity, lipolysis‑related protein expression, and glucose utilization of adipocytes. Differentiated 3T3‑L1 adipocytes were incubated with an iron chelator, deferoxamine mesylate (DFO), for 48 h. Subsequently, basal and isoproterenol‑stimulated lipolytic activities, the proteins involved in lipolysis and glucose utilization were compared with a control (CON). The results revealed that treatment with DFO significantly decreased the free iron content but did not affect total protein and lipid contents in adipocytes. Iron deprivation caused a significant reduction in isoproterenol‑stimulated lipolysis, but not basal lipolysis. Lipolysis‑related proteins, including perilipin A, adipose triglyceride lipase, hormone sensitive lipase and comparative gene identification‑58, were decreased in the DFO compared with the CON group. Furthermore, glucose utilization, a major precursor of 3‑glycerol phosphate for micro‑lipid droplet synthesis during lipolysis and the expression of glucose transporter (GLUT) 4 were significantly lower in the DFO group when compared with the CON group. However, hypoxia‑inducible factor‑1α and GLUT1 expressions were upregulated in DFO‑treated adipocytes. In conclusion, the results indicated that low iron availability attenuated catecholamine‑stimulated lipolysis by downregulating lipolytic enzymes and glucose utilization in 3T3‑L1 adipocytes.
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Affiliation(s)
- Kazuhiko Higashida
- Department of Nutrition, Laboratory of Exercise Nutrition, University of Shiga Prefecture, Hikone, Shiga 522‑8533, Japan
| | - Nodoka Takeuchi
- Department of Nutrition, Laboratory of Exercise Nutrition, University of Shiga Prefecture, Hikone, Shiga 522‑8533, Japan
| | - Sachika Inoue
- Department of Nutrition, Laboratory of Exercise Nutrition, University of Shiga Prefecture, Hikone, Shiga 522‑8533, Japan
| | - Takeshi Hashimoto
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Shiga 525‑8577, Japan
| | - Naoya Nakai
- Department of Nutrition, Laboratory of Exercise Nutrition, University of Shiga Prefecture, Hikone, Shiga 522‑8533, Japan
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Liu L, Sha XY, Wu YN, Chen MT, Zhong JX. Lycium barbarum polysaccharides protects retinal ganglion cells against oxidative stress injury. Neural Regen Res 2020; 15:1526-1531. [PMID: 31997818 PMCID: PMC7059572 DOI: 10.4103/1673-5374.274349] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The accumulation of excessive reactive oxygen species can exacerbate any injury of retinal tissue because free radicals can trigger lipid peroxidation, protein damage and DNA fragmentation. Increased oxidative stress is associated with the common pathological process of many eye diseases, such as glaucoma, diabetic retinopathy and ischemic optic neuropathy. Many studies have demonstrated that Lycium barbarum polysaccharides (LBP) protects against oxidative injury in numerous cells and tissues. For the model of hypoxia we used cultured retinal ganglion cells and induced hypoxia by incubating with 200 µM cobalt chloride (CoCl2) for 24 hours. To investigate the protective effect of LBP and its mechanism of action against oxidative stress injury, the retinal tissue was pretreated with 0.5 mg/mL LBP for 24 hours. The results of flow cytometric analysis showed LBP could effectively reduce the CoCl2-induced retinal ganglion cell apoptosis, inhibited the generation of reactive oxygen species and the reduction of mitochondrial membrane potential. These findings suggested that LBP could protect retinal ganglion cells from CoCl2-induced apoptosis by reducing mitochondrial membrane potential and reactive oxygen species.
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Affiliation(s)
- Lian Liu
- Department of Ophthalmology, Affiliated First Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Xiao-Yuan Sha
- Department of Ophthalmology, Affiliated First Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Yi-Ning Wu
- Department of Ophthalmology, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province, China
| | - Meng-Ting Chen
- Department of Ophthalmology, Affiliated First Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Jing-Xiang Zhong
- Department of Ophthalmology, Affiliated First Hospital of Jinan University, Guangzhou, Guangdong Province, China
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Sun S, Wu Y, Fu H, Ge X, You H, Wu X. Identification and Characterization of Four Autophagy-Related Genes That Are Expressed in Response to Hypoxia in the Brain of the Oriental River Prawn ( Macrobrachium nipponense). Int J Mol Sci 2019; 20:ijms20081856. [PMID: 30991659 PMCID: PMC6514668 DOI: 10.3390/ijms20081856] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/01/2019] [Accepted: 04/11/2019] [Indexed: 01/02/2023] Open
Abstract
Autophagy is a cytoprotective mechanism triggered in response to adverse environmental conditions. Herein, we investigated the autophagy process in the oriental river prawn (Macrobrachium nipponense) following hypoxia. Full-length cDNAs encoding autophagy-related genes (ATGs) ATG3, ATG4B, ATG5, and ATG9A were cloned, and transcription following hypoxia was explored in different tissues and developmental stages. The ATG3, ATG4B, ATG5, and ATG9A cDNAs include open reading frames encoding proteins of 319, 264, 268, and 828 amino acids, respectively. The four M. nipponense proteins clustered separately from vertebrate homologs in phylogenetic analysis. All four mRNAs were expressed in various tissues, with highest levels in brain and hepatopancreas. Hypoxia up-regulated all four mRNAs in a time-dependent manner. Thus, these genes may contribute to autophagy-based responses against hypoxia in M. nipponense. Biochemical analysis revealed that hypoxia stimulated anaerobic metabolism in the brain tissue. Furthermore, in situ hybridization experiments revealed that ATG4B was mainly expressed in the secretory and astrocyte cells of the brain. Silencing of ATG4B down-regulated ATG8 and decreased cell viability in juvenile prawn brains following hypoxia. Thus, autophagy is an adaptive response protecting against hypoxia in M. nipponense and possibly other crustaceans. Recombinant MnATG4B could interact with recombinant MnATG8, but the GST protein could not bind to MnATG8. These findings provide us with a better understanding of the fundamental mechanisms of autophagy in prawns.
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Affiliation(s)
- Shengming Sun
- Wuxi Fishery College, Nanjing Agricultural University, Wuxi 214081, China.
| | - Ying Wu
- Wuxi Fishery College, Nanjing Agricultural University, Wuxi 214081, China.
| | - Hongtuo Fu
- Wuxi Fishery College, Nanjing Agricultural University, Wuxi 214081, China.
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Use, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China.
| | - Xianping Ge
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Use, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China.
| | - Hongzheng You
- Tianjin Fisheries Research Institute, Tianjin 300221, China.
| | - Xugan Wu
- Key Laboratory of Exploration and Use of Aquatic Genetic Resources, Shanghai Ocean University, Shanghai 201306, China.
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11
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Cadenas C, Vosbeck S, Edlund K, Grgas K, Madjar K, Hellwig B, Adawy A, Glotzbach A, Stewart JD, Lesjak MS, Franckenstein D, Claus M, Hayen H, Schriewer A, Gianmoena K, Thaler S, Schmidt M, Micke P, Pontén F, Mardinoglu A, Zhang C, Käfferlein HU, Watzl C, Frank S, Rahnenführer J, Marchan R, Hengstler JG. LIPG-promoted lipid storage mediates adaptation to oxidative stress in breast cancer. Int J Cancer 2019; 145:901-915. [PMID: 30653260 PMCID: PMC6618071 DOI: 10.1002/ijc.32138] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 12/19/2018] [Indexed: 12/16/2022]
Abstract
Endothelial lipase (LIPG) is a cell surface associated lipase that displays phospholipase A1 activity towards phosphatidylcholine present in high‐density lipoproteins (HDL). LIPG was recently reported to be expressed in breast cancer and to support proliferation, tumourigenicity and metastasis. Here we show that severe oxidative stress leading to AMPK activation triggers LIPG upregulation, resulting in intracellular lipid droplet accumulation in breast cancer cells, which supports survival. Neutralizing oxidative stress abrogated LIPG upregulation and the concomitant lipid storage. In human breast cancer, high LIPG expression was observed in a limited subset of tumours and was significantly associated with shorter metastasis‐free survival in node‐negative, untreated patients. Moreover, expression of PLIN2 and TXNRD1 in these tumours indicated a link to lipid storage and oxidative stress. Altogether, our findings reveal a previously unrecognized role for LIPG in enabling oxidative stress‐induced lipid droplet accumulation in tumour cells that protects against oxidative stress, and thus supports tumour progression. What's new? Endothelial lipase (LIPG), a cell surface‐associated lipase with multifaceted roles, is expressed on breast cancer cells, but its molecular function and clinical relevance remain unknown. Here the authors uncover a link between oxidative stress and LIPG upregulation and show that high LIPG expression is associated with shorter metastasis‐free survival in women with node‐negative breast cancer. The authors speculate that LIPG may favor metastasis by enabling stress adaptation through lipid droplet formation and protection of mitochondria.
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Affiliation(s)
- Cristina Cadenas
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Sonja Vosbeck
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Karolina Edlund
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Katharina Grgas
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Katrin Madjar
- Department of Statistics, TU Dortmund University, Dortmund, Germany
| | - Birte Hellwig
- Department of Statistics, TU Dortmund University, Dortmund, Germany
| | - Alshaimaa Adawy
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Annika Glotzbach
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Joanna D Stewart
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Michaela S Lesjak
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Dennis Franckenstein
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Maren Claus
- Department of Immunology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Heiko Hayen
- Department of Analytical Chemistry, Institute of Inorganic and Analytical Chemistry, University of Münster, Münster, Germany
| | - Alexander Schriewer
- Department of Analytical Chemistry, Institute of Inorganic and Analytical Chemistry, University of Münster, Münster, Germany
| | - Kathrin Gianmoena
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Sonja Thaler
- European Center for Angioscience (ECAS), Medical Faculty Mannheim of the University of Heidelberg, Tridomus C, Mannheim, Germany
| | - Marcus Schmidt
- Department of Obstetrics and Gynecology, University Hospital Mainz, Mainz, Germany
| | - Patrick Micke
- Department of Immunology Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Fredrik Pontén
- Department of Immunology Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Adil Mardinoglu
- Science for Life Laboratory, KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Cheng Zhang
- Science for Life Laboratory, KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Heiko U Käfferlein
- Center of Toxicology, Institute for Prevention and Occupational Medicine of the German Social Accident Insurance (IPA), Institute of the Ruhr University Bochum, Bochum, Germany
| | - Carsten Watzl
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Saša Frank
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | | | - Rosemarie Marchan
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
| | - Jan G Hengstler
- Department of Toxicology, Leibniz-Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), Dortmund, Germany
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12
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MicroRNAs and other non-coding RNAs in adipose tissue and obesity: emerging roles as biomarkers and therapeutic targets. Clin Sci (Lond) 2019; 133:23-40. [PMID: 30606812 DOI: 10.1042/cs20180890] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/29/2018] [Accepted: 12/05/2018] [Indexed: 02/07/2023]
Abstract
Obesity is a metabolic condition usually accompanied by insulin resistance (IR), type 2 diabetes (T2D), and dyslipidaemia, which is characterised by excessive fat accumulation and related to white adipose tissue (WAT) dysfunction. Enlargement of WAT is associated with a transcriptional alteration of coding and non-coding RNAs (ncRNAs). For many years, big efforts have focused on understanding protein-coding RNAs and their involvement in the regulation of adipocyte physiology and subsequent role in obesity. However, diverse findings have suggested that a dysfunctional adipocyte phenotype in obesity might be also dependent on specific alterations in the expression pattern of ncRNAs, such as miRNAs. The aim of this review is to update current knowledge on the physiological roles of miRNAs and other ncRNAs in adipose tissue function and their potential impact on obesity. Therefore, we examined their regulatory role on specific WAT features: adipogenesis, adipokine secretion, inflammation, glucose metabolism, lipolysis, lipogenesis, hypoxia and WAT browning. MiRNAs can be released to body fluids and can be transported (free or inside microvesicles) to other organs, where they might trigger metabolic effects in distant tissues, thus opening new possibilities to a potential use of miRNAs as biomarkers for diagnosis, prognosis, and personalisation of obesity treatment. Understanding the role of miRNAs also opens the possibility of using these molecules on individualised dietary strategies for precision weight management. MiRNAs should be envisaged as a future therapeutic approach given that miRNA levels could be modulated by synthetic molecules (f.i. miRNA mimics and inhibitors) and/or specific nutrients or bioactive compounds.
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13
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Nicu C, Pople J, Bonsell L, Bhogal R, Ansell DM, Paus R. A guide to studying human dermal adipocytes in situ. Exp Dermatol 2018; 27:589-602. [DOI: 10.1111/exd.13549] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Carina Nicu
- Centre for Dermatology Research; The University of Manchester; Manchester UK
- NIHR Manchester Biomedical Research Centre; Manchester Academic Health Science Centre; Manchester UK
| | | | - Laura Bonsell
- Centre for Dermatology Research; The University of Manchester; Manchester UK
- NIHR Manchester Biomedical Research Centre; Manchester Academic Health Science Centre; Manchester UK
| | | | - David M. Ansell
- Centre for Dermatology Research; The University of Manchester; Manchester UK
- NIHR Manchester Biomedical Research Centre; Manchester Academic Health Science Centre; Manchester UK
| | - Ralf Paus
- Centre for Dermatology Research; The University of Manchester; Manchester UK
- NIHR Manchester Biomedical Research Centre; Manchester Academic Health Science Centre; Manchester UK
- Department of Dermatology and Cutaneous Surgery; Miller School of Medicine; University of Miami; Miami FL USA
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He Y, Gan X, Zhang L, Liu B, Zhu Z, Li T, Zhu J, Chen J, Yu H. CoCl 2 induces apoptosis via a ROS-dependent pathway and Drp1-mediated mitochondria fission in periodontal ligament stem cells. Am J Physiol Cell Physiol 2018; 315:C389-C397. [PMID: 29768044 DOI: 10.1152/ajpcell.00248.2017] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Oxygen deficiency is associated with various oral diseases, including chronic periodontitis, age-related alveolar bone loss, and mechanical stress-linked cell injury from orthodontic appliances. Nevertheless, our understanding of the impact of hypoxia on periodontal tissues and its biochemical mechanism is still rudimentary. The purpose of this research was to elucidate the effects of hypoxia on the apoptosis of human periodontal ligament stem cells (PDLSCs) in vitro and the underlying mechanism. Herein, we showed that cobalt chloride (CoCl2) triggered cell dysfunction in human PDLSCs in a concentration-dependent manner and resulted in cell apoptosis and oxidative stress overproduction and accumulation in PDLSCs. In addition, CoCl2 promoted mitochondrial fission in PDLSCs. Importantly, CoCl2 increased the expression of dynamin-related protein 1 (Drp1), the major regulator in mitochondrial fission, in PDLSCs. Mitochondrial division inhibitor-1, pharmacological inhibition of Drp1, not only inhibited mitochondrial fission but also protected against CoCl2-induced PDLSC dysfunction, as shown by increased mitochondrial membrane potential, increased ATP level, reduced reactive oxygen species (ROS) level, and decreased apoptosis. Furthermore, N-acety-l-cysteine, a pharmacological inhibitor of ROS, also abolished CoCl2-induced expression of Drp1 and protected against CoCl2-induced PDLSC dysfunction, as shown by restored mitochondrial membrane potential, ATP level, inhibited mitochondrial fission, and decreased apoptosis. Collectively, our data provide new insights into the role of the ROS-Drp1-dependent mitochondrial pathway in CoCl2-induced apoptosis in PDLSCs, indicating that ROS and Drp1 are promising therapeutic targets for the treatment of CoCl2-induced PDLSC dysfunction.
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Affiliation(s)
- Yuting He
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu , People's Republic of China.,West China-Washington Mitochondria and Metabolism Center, Department of Anesthesiology, West China Hospital, Sichuan University , Chengdu , People's Republic of China
| | - Xueqi Gan
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu , People's Republic of China
| | - Ling Zhang
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu , People's Republic of China
| | - Beilei Liu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu , People's Republic of China
| | - Zhuoli Zhu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu , People's Republic of China
| | - Tao Li
- West China-Washington Mitochondria and Metabolism Center, Department of Anesthesiology, West China Hospital, Sichuan University , Chengdu , People's Republic of China
| | - Junfei Zhu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu , People's Republic of China
| | - Junsheng Chen
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu , People's Republic of China
| | - Haiyang Yu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu , People's Republic of China
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15
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Dipeptidyl peptidase IV (DPP-IV) inhibition prevents fibrosis in adipose tissue of obese mice. Biochim Biophys Acta Gen Subj 2018; 1862:403-413. [DOI: 10.1016/j.bbagen.2017.11.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 11/10/2017] [Accepted: 11/13/2017] [Indexed: 01/07/2023]
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16
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Ma Y, Zhou Y, Zhu YC, Wang SQ, Ping P, Chen XF. Lipophagy Contributes to Testosterone Biosynthesis in Male Rat Leydig Cells. Endocrinology 2018; 159:1119-1129. [PMID: 29304246 DOI: 10.1210/en.2017-03020] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 12/22/2017] [Indexed: 12/21/2022]
Abstract
In recent years, autophagy was found to regulate lipid metabolism through a process termed lipophagy. Lipophagy modulates the degradation of cholesteryl esters to free cholesterol (FC), which is the substrate of testosterone biosynthesis. However, the role of lipophagy in testosterone production is unknown. To investigate this, primary rat Leydig cells and varicocele rat models were administered to inhibit or promote autophagy, and testosterone, lipid droplets (LDs), total cholesterol (TC), and FC were evaluated. The results demonstrated that inhibiting autophagy in primary rat Leydig cells reduced testosterone production. Further studies demonstrated that inhibiting autophagy increased the number and size of LDs and the level of TC, but decreased the level of FC. Furthermore, hypoxia promoted autophagy in Leydig cells. We found that short-term hypoxia stimulated testosterone secretion; however, the inhibition of autophagy abolished stimulated testosterone release. Hypoxia decreased the number and size of LDs in Leydig cells, but the changes could be largely rescued by blocking autophagy. In experimental varicocele rat models, the administration of autophagy inhibitors substantially reduced serum testosterone. These data demonstrate that autophagy contributes to testosterone biosynthesis at least partially through degrading intracellular LDs/TC. Our observations might reveal an autophagic regulatory mode regarding testosterone biosynthesis.
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Affiliation(s)
- Yi Ma
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Yan Zhou
- Department of Central Laboratory, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yin-Ci Zhu
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Si-Qi Wang
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Ping Ping
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Xiang-Feng Chen
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
- Shanghai Human Sperm Bank, Department of Urology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China
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Eseberri I, Lasa A, Miranda J, Gracia A, Portillo MP. Potential miRNA involvement in the anti-adipogenic effect of resveratrol and its metabolites. PLoS One 2017; 12:e0184875. [PMID: 28953910 PMCID: PMC5617156 DOI: 10.1371/journal.pone.0184875] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 09/03/2017] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVE Scientific research is constantly striving to find molecules which are effective against excessive body fat and its associated complications. Taking into account the beneficial effects that resveratrol exerts on other pathologies through miRNA, the aim of the present work was to analyze the possible involvement of miRNAs in the regulation of adipogenic transcription factors peroxisome proliferator-activated receptor γ (pparγ), CCAAT enhancer-binding proteins α and β (cebpβ and cebpα) induced by resveratrol and its metabolites. METHODS 3T3-L1 maturing pre-adipocytes were treated during differentiation with 25 μM of trans-resveratrol (RSV), trans-resveratrol-3-O-sulfate (3S), trans-resveratrol-3'-O-glucuronide (3G) and trans-resveratrol-4'-O-glucuronide (4G). After computational prediction and bibliographic search of miRNAs targeting pparγ, cebpβ and cebpα, the expression of microRNA-130b-3p (miR-130b-3p), microRNA-155-5p (miR-155-5p), microRNA-27b-3p (miR-27b-3p), microRNA-31-5p (miR-31-5p), microRNA-326-3p (miR-326-3p), microRNA-27a-3p (miR-27a-3p), microRNA-144-3p (miR-144-3p), microRNA-205-5p (miR-205-5p) and microRNA-224-3p (miR-224-3p) was analyzed. Moreover, other adipogenic mediators such as sterol regulatory element binding transcription factor 1 (srebf1), krüppel-like factor 5 (klf5), liver x receptor α (lxrα) and cAMP responding element binding protein 1 (creb1), were measured by Real Time RT-PCR. As a confirmatory assay, cells treated with RSV were transfected with anti-miR-155 in order to measure cebpβ gene and protein expressions. RESULTS Of the miRNAs analyzed only miR-155 was modified after resveratrol and glucuronide metabolite treatment. In transfected cells with anti-miR-155, RSV did not reduce cebpβ gene and protein expression. 3S decreased gene expression of creb1, klf5, srebf1 and lxrα. CONCLUSIONS While RSV and glucuronide metabolites exert their inhibitory effect on adipogenesis through miR-155 up-regulation, the anti-adipogenic effect of 3S is not mediated via miRNAs.
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Affiliation(s)
- Itziar Eseberri
- Nutrition and Obesity group, Department of Nutrition and Food Science, University of Basque Country (UPV/EHU) and Lucio Lascaray Research Center, Vitoria, Spain
- Centro de Investigación Biomédica en Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Arrate Lasa
- Nutrition and Obesity group, Department of Nutrition and Food Science, University of Basque Country (UPV/EHU) and Lucio Lascaray Research Center, Vitoria, Spain
- Centro de Investigación Biomédica en Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Jonatan Miranda
- Nutrition and Obesity group, Department of Nutrition and Food Science, University of Basque Country (UPV/EHU) and Lucio Lascaray Research Center, Vitoria, Spain
- Centro de Investigación Biomédica en Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Ana Gracia
- Nutrition and Obesity group, Department of Nutrition and Food Science, University of Basque Country (UPV/EHU) and Lucio Lascaray Research Center, Vitoria, Spain
- Centro de Investigación Biomédica en Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Maria P. Portillo
- Nutrition and Obesity group, Department of Nutrition and Food Science, University of Basque Country (UPV/EHU) and Lucio Lascaray Research Center, Vitoria, Spain
- Centro de Investigación Biomédica en Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
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18
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Chirumbolo S, Bjørklund G. Pyrethroid pesticides in the autophagy/apoptosis balance: Role in adipocyte lipidogenesis. Food Chem Toxicol 2017; 106:568-569. [PMID: 28377267 DOI: 10.1016/j.fct.2017.03.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Accepted: 03/31/2017] [Indexed: 11/18/2022]
Affiliation(s)
| | - Geir Bjørklund
- Council of Nutritional and Environmental Medicine, Mo i Rana, Norway
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