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Liu H, Ma XF, Dong N, Wang GN, Qi MX, Tan JK. LncRNA PVT1 inhibits endothelial cells apoptosis in coronary heart disease through regulating MAPK1 expression via miR-532-3p. Acta Cardiol 2024; 79:295-303. [PMID: 37260124 DOI: 10.1080/00015385.2023.2209448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 04/25/2023] [Indexed: 06/02/2023]
Abstract
Background: Coronary atherosclerotic heart disease (CAD) is an inflammatory vascular disease caused by atherosclerosis. Long non-coding RNAs are involved in the pathophysiological process of coronary heart disease. Here we investigated the regulatory effects of lncRNA PVT1 (PVT1) in human coronary artery endothelial cells (HCAECs).Methods: qRT-PCR and western blot were performed to detect gene and protein expressions. CCK-8, flow cytometry and wound healing assays were used to determine cell viability, apoptosis and migration of HCAECs. The binding relationship among miR-532-3p, PVT1 and MAPK1 was verified by dual luciferase reporter assay.Results: Overexpression of PVT1 markedly reduced cell apoptosis and increased cell proliferation and migration. However, miR-532-3p upregulation suppressed cell proliferation and migration and promoted apoptosis of HCAECs. PVT1 suppressed the expression of miR-532-3p via directly targeting miR-532-3p. And miR-532-3p overexpression abolished the effect of PVT1 upregulation on proliferation and apoptosis in HCAECs. Furthermore, MAPK1 acted as a target gene of miR-532-3p and miR-532-3p inhibited MAPK1 expression.Conclusion: PVT1 promoted MAPK1 expression by targeting miR-532-3p, thus inhibiting HCAECs apoptosis and promoting cell proliferation, suggesting PVT1 might have great potential as a therapeutic target for CAD.
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Affiliation(s)
- Huan Liu
- Department of Cardiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, Province, P.R. China
| | - Xiao-Feng Ma
- Department of Cardiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, Province, P.R. China
| | - Na Dong
- Department of Endocrinology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, Province, P.R. China
| | - Guang-Neng Wang
- Department of Cardiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, Province, P.R. China
| | - Ming-Xu Qi
- Department of Cardiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, Province, P.R. China
| | - Jian-Kai Tan
- Department of Cardiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, Province, P.R. China
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2
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Wang HL, Narisawa M, Wu P, Meng X, Cheng XW. The many roles of cathepsins in restenosis. Heliyon 2024; 10:e24720. [PMID: 38333869 PMCID: PMC10850908 DOI: 10.1016/j.heliyon.2024.e24720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/12/2024] [Accepted: 01/12/2024] [Indexed: 02/10/2024] Open
Abstract
Drug-eluting stents (DES) and dual antiplatelet regimens have significantly improved the clinical management of ischemic heart disease; however, the drugs loaded with DES in clinical practice are mostly paclitaxel or rapamycin derivatives, which target symptoms of post implantation proliferation and inflammation, leading to delayed re-endothelialization and neo-atherosclerosis. Along with the treatments already in place, there is a need for novel strategies to lessen the negative clinical outcomes of DES delays as well as a need for greater understanding of their pathobiological mechanisms. This review concentrates on the function of cathepsins (Cats) in the inflammatory response and granulation tissue formation that follow Cat-induced damage to the vasculature scaffold, as well as the functions of Cats in intimal hyperplasia, which is characterized by the migration and proliferation of smooth muscle cells, and endothelial denudation, re-endothelialization, and/or neo-endothelialization. Additionally, Cats can alter essential neointima formation and immune response inside scaffolds, and if Cats are properly controlled in vivo, they may improve scaffold biocompatibility. This unique profile of functions could lead to an original concept for a cathepsin-based coronary intervention treatment as an adjunct to stent placement.
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Affiliation(s)
- Hai Long Wang
- Department of Adult Intensive Care Unit, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
- Department of Cardiology and Hypertension, Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, Jilin, PR China
| | - Megumi Narisawa
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Aichiken, 4668550, Japan
| | - Pan Wu
- Department of Adult Intensive Care Unit, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Xiangkun Meng
- Department of Vascular Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310000, PR China
| | - Xian Wu Cheng
- Department of Cardiology and Hypertension, Jilin Provincial Key Laboratory of Stress and Cardiovascular Disease, Yanbian University Hospital, Yanji, Jilin, PR China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, Jilin, 133002, PR China
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3
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Sun X, Yang X, Gui W, Liu S, Gui Q. Sirtuins and autophagy in lipid metabolism. Cell Biochem Funct 2023; 41:978-987. [PMID: 37755711 DOI: 10.1002/cbf.3860] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/28/2023]
Abstract
Sirtuins are a family of NAD+ -dependent deacetylases that regulate some important biological processes, including lipid metabolism and autophagy, through their deacetylase function. Autophagy is a new discovery in the field of lipid metabolism, which may provide a new idea for the regulation of lipid metabolism. There are many tandem parts in the regulation process of lipid metabolism and autophagy of sirtuins protein family. This paper summarized these tandem parts and proposed the possibility of sirtuins regulating lipid autophagy, as well as the interaction and synergy between sirtuins protein family. Currently, some natural drugs have been reported to affect metabolism by regulating sirtuins, some of which regulate autophagy by targeting sirtuins.
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Affiliation(s)
- Xuan Sun
- Department of Basic Medicine, Hengyang Medical School, University of South China, Hengyang, China
| | - Xiaoting Yang
- Department of Basic Medicine, Hengyang Medical School, University of South China, Hengyang, China
| | - Wanfei Gui
- Department of Medicine, Chuanshan College, University of South China, Hengyang, China
| | - Songling Liu
- Department of Basic Medicine, Hengyang Medical School, University of South China, Hengyang, China
| | - Qingjun Gui
- Department of Basic Medicine, Hengyang Medical School, University of South China, Hengyang, China
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4
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Meng Z, Lu J, Ge G, Wang G, Zhang R, Li Y, Guan S, Lu J. Ginsenoside Rb1 induces autophagic lipid degradation via miR-128 targeting TFEB. Food Funct 2023; 14:240-249. [PMID: 36484324 DOI: 10.1039/d2fo02719d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In recent years, the effect of lipid metabolism on health has attracted more and more attention. Ginseng is a traditional Chinese herbal medicine in China and is widely used as food in Asia. Ginsenoside Rb1 (Gs-Rb1) is the most abundant ingredient in ginsenoside, which has a variety of biological activities. In this study, we found that Gs-Rb1 can reduce lipid accumulation in mice and HepG2 cells induced by a high-fat diet (HFD) and palmitic acid (PA). At the same time, we also found that Gs-Rb1 could stimulate the autophagic flux of HFD-fed mice and PA-treated HepG2 cells, and it is further verified by adding the autophagy activator rapamycin (Rapa) and autophagy inhibitor chloroquine (CQ). Furthermore, we found that Gs-Rb1 promoted the nucleus translocation of the transcription factor EB (TFEB) and the target role of miR-128, thus stimulating autophagic flux. Therefore, our results showed that Gs-Rb1 enhanced the transcription of TFEB and its downstream lysosome-related genes by inhibiting miR-128, improved the degradation ability of lysosomes to autophagosomes, and then promoted autophagic lipid degradation.
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Affiliation(s)
- Zhuoqun Meng
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, People's Republic of China.
| | - Jianing Lu
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, People's Republic of China. .,Health Technology College, Jilin Sport University, Changchun, Jilin 130062, People's Republic of China
| | - Guangcai Ge
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, People's Republic of China.
| | - Guang Wang
- Office of Laboratory and Equipment Management, Jilin University, Changchun, Jilin 130000, People's Republic of China
| | - Ran Zhang
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, People's Republic of China.
| | - Yuhan Li
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, People's Republic of China.
| | - Shuang Guan
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, People's Republic of China. .,Key Laboratory of Zoonosis, Ministry of Education College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, People's Republic of China
| | - Jing Lu
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, People's Republic of China. .,Key Laboratory of Zoonosis, Ministry of Education College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, People's Republic of China
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5
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Yuan L, Wang D, Wu C. Protective effect of liquiritin on coronary heart disease through regulating the proliferation of human vascular smooth muscle cells via upregulation of sirtuin1. Bioengineered 2022; 13:2840-2850. [PMID: 35038972 PMCID: PMC8974169 DOI: 10.1080/21655979.2021.2024687] [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] [Indexed: 12/15/2022] Open
Abstract
This study aimed to explore whether liquiritin affects the development of coronary heart disease by regulating the proliferation and migration of human vascular smooth muscle cells (hVSMCs). A 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2 H-tetrazolium bromide (MTT) assay and lactate dehydrogenase (LDH) release detection were performed to measure the toxic effects of liquiritin on hVSMCs. An in vitro atherosclerosis model in hVSMCs was established using oxidized low-density lipoprotein (ox-LDL), and cell proliferation and apoptosis were detected using an MTT assay and flow cytometry analysis. Western blotting and reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) were used to detect protein and mRNA expressions, respectively. Caspase3 activity and cell migration were measured using an activity detection kit and Transwell assay, respectively. The results indicated that liquiritin at doses <160 μM had no significant effect on cell viability and LDH release in hVSMCs. Ox-LDL significantly induced cell proliferation and migration, and inhibited hVSMCs apoptosis. Liquiritin significantly inhibited cell proliferation and migration, and enhanced cell apoptosis in ox-LDL induced hVSMCs. Sirtuin1 (SIRT1) was lowly expressed in atherosclerotic plaque tissues in coronary heart disease patients and in ox-LDL-induced hVSMCs. Liquiritin improved SIRT1 expression in ox-LDL-induced hVSMCs, whereas the improvement was inhibited by Selisistat (EX 527, an effective SIRT1 inhibitor) treatment. EX 527 reversed the effects of liquiritin on cell proliferation, migration, and apoptosis in ox-LDL-induced hVSMCs In conclusion, liquiritin plays a protective role in coronary heart disease by regulating the proliferation and migration of hVSMCs by increasing SIRT1 expression.
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Affiliation(s)
- Liang Yuan
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Dajie Wang
- Department of Cardiology, The Yancheng School of Clinical Medicine of Nanjing Medical University (Yancheng Third People's Hospital), Yancheng, China
| | - Chunyang Wu
- Department of Cardiology, The Yancheng School of Clinical Medicine of Nanjing Medical University (Yancheng Third People's Hospital), Yancheng, China
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Brownfoot F, Binder N, Hastie R, Harper A, Beard S, Tuohey L, Keenan E, Tong S, Hannan N. Nicotinamide and its effects on endothelial dysfunction and secretion of antiangiogenic factors by primary human placental cells and tissues. Placenta 2021; 109:28-31. [PMID: 33957335 DOI: 10.1016/j.placenta.2021.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/29/2021] [Accepted: 04/13/2021] [Indexed: 01/08/2023]
Abstract
Preeclampsia is a serious pregnancy complication associated with elevated antiangiogenic markers and endothelial dysfunction. Recently nicotinamide (vitamin B3) was shown to reduce high blood pressure and proteinuria in mice models of the disease. Using primary human pregnancy tissue we show nicotinamide did not change antiangiogenic factor secretion including soluble fms-like tyrosine kinase 1 or soluble endoglin from primary cytotrophoblasts and placental explants. Furthermore, it did not reverse markers of endothelial dysfunction. Therefore, we did not demonstrate an effect of nicotinamide on reducing markers of preeclampsia from primary human placental tissues and vascular cells.
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Affiliation(s)
- Fiona Brownfoot
- Mercy Perinatal, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia; Translational Obstetrics Group, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia.
| | - Natalie Binder
- Mercy Perinatal, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia; Translational Obstetrics Group, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia
| | - Roxanne Hastie
- Mercy Perinatal, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia; Translational Obstetrics Group, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia
| | - Alesia Harper
- Mercy Perinatal, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia; Translational Obstetrics Group, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia
| | - Sally Beard
- Mercy Perinatal, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia; Translational Obstetrics Group, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia
| | - Laura Tuohey
- Mercy Perinatal, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia; Translational Obstetrics Group, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia
| | - Emerson Keenan
- Mercy Perinatal, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia
| | - Stephen Tong
- Mercy Perinatal, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia; Translational Obstetrics Group, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia
| | - Natalie Hannan
- Mercy Perinatal, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia; Translational Obstetrics Group, The Department of Obstetrics and Gynaecology, University of Melbourne. Mercy Perinatal, Mercy Hospital for Women 163 Studley Rd, Heidelberg, 3084, Victoria, Australia
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7
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Ding Y, Feng Y, Zou Y, Wang F, Liu H, Liu C, Zhang Y. [Gly14]-humanin restores cathepsin D function via FPRL1 and promotes autophagic degradation of Ox-LDL in HUVECs. Nutr Metab Cardiovasc Dis 2020; 30:2406-2416. [PMID: 32917500 DOI: 10.1016/j.numecd.2020.07.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/01/2020] [Accepted: 07/16/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIM Abnormal aggregation of oxidized low-density lipoprotein (Ox-LDL) in vascular endothelial cells (VECs) is one of the major pathological changes in atherosclerotic lesions. Our research aimed to assess the mechanism of humanin (HN) in promoting autophagic degradation of Ox-LDL in HUVECs. METHODS AND RESULTS Flow cytometry and lipid quantitation results showed that Ox-LDL caused lipid and cholesterol accumulation in HUVECs. Western blot results showed that Ox-LDL increased the expression of autophagy-related proteins P62 and LC3-II in a concentration-dependent manner. The cathepsin D activity assay showed that Ox-LDL inhibited the function of cathepsin D. HNG pretreatment reduced lipid and cholesterol aggregation in HUVECs induced by Ox-LDL, increased LC3-II protein level, decreased P62 protein content, and reversed Ox-LDL-induced cathepsin D functional impairment. Inhibition of the FPRL1 pathway by FPRL1 siRNA or the FPRL1-specific inhibitor Boc-MLF blocked all HNG's protective effects. These results indicate that HNG could restore cathepsin D activity and protein level in HUVECs to repair lysosomal functional damage induced by Ox-LDL, further repairing Ox-LDL-induced autophagic damage in HUVECs. CONCLUSION HNG restores the activity of Ox-LDL-induced damaged lysosomal enzyme cathepsin D through its membrane protein receptor FPRL1 to promote autophagic degradation of Ox-LDL in HUVECs.
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Affiliation(s)
- Yu Ding
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Yue Feng
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Yutian Zou
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Fen Wang
- Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Huihui Liu
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Chunfeng Liu
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Neuroscience, Soochow University, Suzhou, 215123, China.
| | - Yanlin Zhang
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China.
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8
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Formanowicz D, Malińska A, Nowicki M, Kowalska K, Gruca-Stryjak K, Bręborowicz G, Korybalska K. Preeclampsia with Intrauterine Growth Restriction Generates Morphological Changes in Endothelial Cells Associated with Mitochondrial Swelling-An In Vitro Study. J Clin Med 2019; 8:jcm8111994. [PMID: 31731752 PMCID: PMC6912746 DOI: 10.3390/jcm8111994] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/05/2019] [Accepted: 11/13/2019] [Indexed: 01/07/2023] Open
Abstract
Pregnancy complicated by preeclampsia (PE) and intrauterine growth restriction (IUGR) promotes endothelial cell (EC) dysfunction. Our in vitro study aimed to evaluate the endothelial cell morphology after acute and chronic exposition to medium supplemented with serum taken from healthy pregnant women and women with IUGR and IUGR with PE. In the same condition, ECs viability, proliferation, reactive oxygen species (ROS) production, and serum concentration of vascular endothelial growth factor (VEGF) were also measured. Pregnant women with IUGR and IUGR with PE-delivered babies with reduced body mass and were characterized in elevated blood pressure, urine protein loss, and reduced level of VEGF. The 24 hours of exposition did not exert any morphological changes in ECs, except the reduction in cell viability, but prolonged exposition resulted in significant morphological changes concerning mostly the swelling of mitochondria with accompanying ROS production, cell autophagy, reduced cell viability, and proliferation only in complicated pregnancies. In conclusion, the sera taken from women with IUGR and IUGR with PE show a detrimental effect on ECs, reducing their viability, proliferation, and generating oxidative stress due to dysfunctional mitochondria. This multidirectional effect might have an adverse impact on the cardiovascular system in women with IUGR and PE.
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Affiliation(s)
- Dorota Formanowicz
- Department of Clinical Biochemistry and Laboratory Medicine, Poznan University of Medical Sciences, 60-806 Poznań, Poland
- Correspondence:
| | - Agnieszka Malińska
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznań, Poland
| | - Marcin Nowicki
- Department of Clinical Biochemistry and Laboratory Medicine, Poznan University of Medical Sciences, 60-806 Poznań, Poland
| | - Katarzyna Kowalska
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznań, Poland
| | - Karolina Gruca-Stryjak
- Department of Perinatology and Gynecology, Poznan University of Medical Sciences, 60-535 Poznań, Poland; (K.G.-S.); (G.B.)
| | - Grzegorz Bręborowicz
- Department of Perinatology and Gynecology, Poznan University of Medical Sciences, 60-535 Poznań, Poland; (K.G.-S.); (G.B.)
| | - Katarzyna Korybalska
- Department of Pathophysiology, Poznan University of Medical Sciences, 60-806 Poznań, Poland;
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9
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Xiao L, Luo G, Guo X, Jiang C, Zeng H, Zhou F, Li Y, Yu J, Yao P. Macrophage iron retention aggravates atherosclerosis: Evidence for the role of autocrine formation of hepcidin in plaque macrophages. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1865:158531. [PMID: 31666189 DOI: 10.1016/j.bbalip.2019.158531] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 09/10/2019] [Accepted: 09/13/2019] [Indexed: 12/18/2022]
Abstract
Iron accumulation has been frequently found in atherosclerotic lesions, especially in macrophages/foam cells, but the exact mechanisms by which hepcidin induces iron retention in plaque macrophages and its roles in atherogenesis remain unknown. Double immunofluorescence staining showed colocalization of hepcidin-positive macrophages with ox-LDL, TLR4, p-p65 and ferritin light chain (ferritin-L) both in human and murine atherosclerotic lesions. RAW264.7 macrophages incubated with ox-LDL showed elevated expression of TLR4, p-p65, hepcidin, ferritin-L/H, CYP27A1, CD36, PPARγ, liver X receptor α (LXRα), and ATP binding cassette transporter A1/G1 (ABCA1/G1), as well as increased intracellular labile iron pool level and lipid accumulation. Ox-LDL-induced iron retention and lipid accumulation were aggravated by lipopolysaccharide but blocked by TAK-242, an antagonist of TLR4. Moreover, macrophage TLR4/NF-κB pathway activation and foaming triggered by ox-LDL was enhanced by ferric ammonium citrate or exogenous hepcidin but attenuated by hepcidin silencing or the use of iron chelator. Meanwhile, the addition of hepcidin stimulated CD36-mediated Dil-labeled-ox-LDL uptake and inhibited the LXRα-ABCA1/G1 pathway-dependent cholesterol efflux in macrophages, which was significantly reversed by 27-hydroxycholesterol but further exacerbated by cyclosporin A, a selective inhibitor of CYP27A1. Our study provided the evidence that iron trapped in atherosclerosis plaque macrophages contributes to cholesterol disequilibrium-initiated foam cell formation, which is provoked by the unique but largely unknown autocrine formation of hepcidin in plaque macrophages via activating the TLR4/NF-κB pathway when exposed to ox-LDL. Such findings, considering the intricate vicious cycle between macrophage hepcidin autocrine-triggered iron retention and cholesterol disequilibrium, may shed new light on the "iron hypothesis" of atherosclerosis.
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Affiliation(s)
- Lin Xiao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Gang Luo
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoping Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chunjie Jiang
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hongmei Zeng
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Feng Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yanyan Li
- Shenzhen Center for Chronic Disease Control, 2021 Buxin Road, Shenzhen 518020, China
| | - Jiasheng Yu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, HuaZhong University of Science and Technology, Wuhan 430030, China
| | - Ping Yao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Wang H, Wang Z, Tang Q. Reduced expression of microRNA-199a-3p is associated with vascular endothelial cell injury induced by type 2 diabetes mellitus. Exp Ther Med 2018; 16:3639-3645. [PMID: 30233719 DOI: 10.3892/etm.2018.6655] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/18/2018] [Indexed: 02/06/2023] Open
Abstract
The aim of the present study was to investigate the function and mechanism of action of microRNA (miRNA or miR)-199a-3p in vascular endothelial cell injury induced by type 2 diabetes mellitus (T2DM). A total of 36 patients with T2DM (26 males and 10 females; mean age, 52.5±7.0 years) and 20 healthy subjects (10 males and 10 females; mean age, 55.6±4.5 years) were included in the present study. Peripheral blood samples were obtained from all participants and total RNA was extracted Reverse transcription-quantitative polymerase chain reaction was performed to determine the expression of miR-199a-3p. Following the transfection of human umbilical vein endothelial cells (HUVECs) with a negative control (NC) miRNA or miR-199a-3p mimics, cell proliferation was assessed using a Cell Counting kit-8 assay. Cell migration was investigated using Transwell assays and flow cytometry was performed to detect the apoptosis of HUVECs. HUVECs were infected with Ad-GFP-LC3B and laser-scanning confocal microscopy was performed to observe autophagosomes in HUVECs. Western blotting was used to measure the expression of proteins associated with autophagy and the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT)/nuclear factor (NF)-κB signaling pathway. MiR-199a-3p was downregulated in peripheral blood from patients with T2DM compared with healthy subjects. Transfection with miR-199a-3p mimics promoted the proliferation and migration of HUVECs. However, miR-199a-3p overexpression inhibited the apoptosis of HUVECs. MiR-199a-3p facilitated HUVEC autophagy by affecting autophagy-associated signaling pathways. Furthermore, miR-199a-3p regulated the biological functions of HUVECs via the PI3K/AKT/NF-κB signaling pathway. The results of the present study suggest that miR-199a-3p expression was reduced in patients with T2DM compared with healthy subjects and may be associated with vascular endothelial cell injury. In addition, miR-199a-3p promoted the proliferation, migration and autophagy of HUVECs, potentially by regulating the PI3K/AKT/NF-κB signaling pathway. Therefore, miR-199a-3p may function as protector of vascular endothelia.
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Affiliation(s)
- Hui Wang
- Department of Endocrinology, Affiliated Hospital of Taishan Medical University, Taian, Shandong 271000, P.R. China
| | - Zhengxia Wang
- Clinical Skills Center, Affiliated Hospital of Taishan Medical University, Taian, Shandong 271000, P.R. China
| | - Qingbin Tang
- Emergency Medicine Department, Affiliated Hospital of Taishan Medical University, Taian, Shandong 271000, P.R. China
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D'Onofrio N, Servillo L, Balestrieri ML. SIRT1 and SIRT6 Signaling Pathways in Cardiovascular Disease Protection. Antioxid Redox Signal 2018; 28:711-732. [PMID: 28661724 PMCID: PMC5824538 DOI: 10.1089/ars.2017.7178] [Citation(s) in RCA: 251] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 05/24/2017] [Indexed: 02/06/2023]
Abstract
SIGNIFICANCE Oxidative stress represents the common hallmark of pathological conditions associated with cardiovascular disease (CVD), including atherosclerosis, heart failure, hypertension, aging, diabetes, and other vascular system-related diseases. The sirtuin (SIRT) family, comprising seven proteins (SIRT1-SIRT7) sharing a highly conserved nicotinamide adenine dinucleotide (NAD+)-binding catalytic domain, attracted a great attention for the past few years as stress adaptor and epigenetic enzymes involved in the cellular events controlling aging-related disorder, cancer, and CVD. Recent Advances: Among sirtuins, SIRT1 and SIRT6 are the best characterized for their protective roles against inflammation, vascular aging, heart disease, and atherosclerotic plaque development. This latest role has been only recently unveiled for SIRT6. Of interest, in recent years, complex signaling networks controlled by SIRT1 and SIRT6 common to stress resistance, vascular aging, and CVD have emerged. CRITICAL ISSUES We provide a comprehensive overview of recent developments on the molecular signaling pathways controlled by SIRT1 and SIRT6, two post-translational modifiers proven to be valuable tools to dampen inflammation and oxidative stress at the cardiovascular level. FUTURE DIRECTIONS A deeper understanding of the epigenetic mechanisms through which SIRT1 and SIRT6 act in the signalings responsible for onset and development CVD is a prime scientific endeavor of the upcoming years. Multiple "omic" technologies will have widespread implications in understanding such mechanisms, speeding up the achievement of selective and efficient pharmacological modulation of sirtuins for future applications in the prevention and treatment of CVD. Antioxid. Redox Signal. 28, 711-732.
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Affiliation(s)
- Nunzia D'Onofrio
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Università degli Studi della Campania , Naples, Italy
| | - Luigi Servillo
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Università degli Studi della Campania , Naples, Italy
| | - Maria Luisa Balestrieri
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Università degli Studi della Campania , Naples, Italy
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12
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Hwang ES, Song SB. Nicotinamide is an inhibitor of SIRT1 in vitro, but can be a stimulator in cells. Cell Mol Life Sci 2017; 74:3347-3362. [PMID: 28417163 PMCID: PMC11107671 DOI: 10.1007/s00018-017-2527-8] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 03/24/2017] [Accepted: 04/12/2017] [Indexed: 01/15/2023]
Abstract
Nicotinamide (NAM), a form of vitamin B3, plays essential roles in cell physiology through facilitating NAD+ redox homeostasis and providing NAD+ as a substrate to a class of enzymes that catalyze non-redox reactions. These non-redox enzymes include the sirtuin family proteins which deacetylate target proteins while cleaving NAD+ to yield NAM. Since the finding that NAM exerts feedback inhibition to the sirtuin reactions, NAM has been widely used as an inhibitor in the studies where SIRT1, a key member of sirtuins, may have a role in certain cell physiology. However, once administered to cells, NAM is rapidly converted to NAD+ and, therefore, the cellular concentration of NAM decreases rapidly while that of NAD+ increases. The result would be an inhibition of SIRT1 for a limited duration, followed by an increase in the activity. This possibility raises a concern on the validity of the interpretation of the results in the studies that use NAM as a SIRT1 inhibitor. To understand better the effects of cellular administration of NAM, we reviewed published literature in which treatment with NAM was used to inhibit SIRT1 and found that the expected inhibitory effect of NAM was either unreliable or muted in many cases. In addition, studies demonstrated NAM administration stimulates SIRT1 activity and improves the functions of cells and organs. To determine if NAM administration can generate conditions in cells and tissues that are stimulatory to SIRT1, the changes in the cellular levels of NAM and NAD+ reported in the literature were examined and the factors that are involved in the availability of NAD+ to SIRT1 were evaluated. We conclude that NAM treatment can hypothetically be stimulatory to SIRT1.
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Affiliation(s)
- Eun Seong Hwang
- Department of Life Science, University of Seoul, Dongdaemungu, 163 Seoulsiripdaero, Seoul, 02504, Republic of Korea.
| | - Seon Beom Song
- Department of Life Science, University of Seoul, Dongdaemungu, 163 Seoulsiripdaero, Seoul, 02504, Republic of Korea
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13
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Nègre-Salvayre A, Augé N, Camaré C, Bacchetti T, Ferretti G, Salvayre R. Dual signaling evoked by oxidized LDLs in vascular cells. Free Radic Biol Med 2017; 106:118-133. [PMID: 28189852 DOI: 10.1016/j.freeradbiomed.2017.02.006] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Revised: 01/30/2017] [Accepted: 02/02/2017] [Indexed: 12/12/2022]
Abstract
The oxidative theory of atherosclerosis relies on the modification of low density lipoproteins (LDLs) in the vascular wall by reactive oxygen species. Modified LDLs, such as oxidized LDLs, are thought to participate in the formation of early atherosclerotic lesions (accumulation of foam cells and fatty streaks), whereas their role in advanced lesions and atherothrombotic events is more debated, because antioxidant supplementation failed to prevent coronary disease events and mortality in intervention randomized trials. As oxidized LDLs and oxidized lipids are present in atherosclerotic lesions and are able to trigger cell signaling on cultured vascular cells and macrophages, it has been proposed that they could play a role in atherogenesis and atherosclerotic vascular remodeling. Oxidized LDLs exhibit dual biological effects, which are dependent on extent of lipid peroxidation, nature of oxidized lipids (oxidized phospholipids, oxysterols, malondialdehyde, α,β-unsaturated hydroxyalkenals), concentration of oxidized LDLs and uptake by scavenger receptors (e.g. CD36, LOX-1, SRA) that signal through different transduction pathways. Moderate concentrations of mildly oxidized LDLs are proinflammatory and trigger cell migration and proliferation, whereas higher concentrations induce cell growth arrest and apoptosis. The balance between survival and apoptotic responses evoked by oxidized LDLs depends on cellular systems that regulate the cell fate, such as ceramide/sphingosine-1-phosphate rheostat, endoplasmic reticulum stress, autophagy and expression of pro/antiapoptotic proteins. In vivo, the intimal concentration of oxidized LDLs depends on the influx (hypercholesterolemia, endothelial permeability), residence time and lipid composition of LDLs, oxidative stress intensity, induction of defense mechanisms (antioxidant systems, heat shock proteins). As a consequence, the local cellular responses to oxidized LDLs may stimulate inflammatory or anti-inflammatory pathways, angiogenic or antiangiogenic responses, survival or apoptosis, thereby contributing to plaque growth, instability, complication (intraplaque hemorrhage, proteolysis, calcification, apoptosis) and rupture. Finally, these dual properties suggest that oxLDLs could be implicated at each step of atherosclerosis development, from early fatty streaks to advanced lesions, depending on the nature and concentration of their oxidized lipid content.
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Affiliation(s)
| | | | - Caroline Camaré
- Inserm UMR-1048, France; University of Toulouse, Faculty of Medicine, Biochemistry Dept, Toulouse, France; CHU Toulouse, Rangueil, Toulouse, France
| | | | | | - Robert Salvayre
- Inserm UMR-1048, France; University of Toulouse, Faculty of Medicine, Biochemistry Dept, Toulouse, France; CHU Toulouse, Rangueil, Toulouse, France.
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Koskela A, Reinisalo M, Petrovski G, Sinha D, Olmiere C, Karjalainen R, Kaarniranta K. Nutraceutical with Resveratrol and Omega-3 Fatty Acids Induces Autophagy in ARPE-19 Cells. Nutrients 2016; 8:E284. [PMID: 27187449 PMCID: PMC4882697 DOI: 10.3390/nu8050284] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 04/29/2016] [Accepted: 05/05/2016] [Indexed: 01/07/2023] Open
Abstract
Impaired autophagic and proteasomal cleansing have been documented in aged retinal pigment epithelial (RPE) cells and age-related macular degeneration (AMD). Omega-3 fatty acids and resveratrol have many positive homeostatic effects in RPE cells. In this work, ARPE-19 cells were treated with 288 ng of Resvega, containing 30 mg of trans resveratrol and 665 mg of omega-3 fatty acids, among other nutrients, with proteasome inhibitor MG-132 or autophagy inhibitor bafilomycin A1 up to 48 h. Autophagy markers p62/SQSTM1 (p62) and LC3 (microtubule-associated protein 1A/1B-light chain 3) were analyzed by Western blotting. Fluorescence microscopy with mCherry-GFP-LC3 plasmid was applied to study the autophagy flux, and cytoprotective effects were investigated with colorimetric MTT and LDH assays. Resvega induced autophagy by showing increased autolysosome formation and autophagy flux, and the change in the p62 and LC3 protein levels further confirmed the fluorescent microscopy results. Moreover, Resvega provided a clear cytoprotection under proteasome inhibition. These findings highlight the potential of the nutraceuticals containing resveratrol, omega-3 fatty acids and other nutrients in the prevention of ARPE-19 cell damage.
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Affiliation(s)
- Ali Koskela
- Department of Ophthalmology, University of Eastern Finland, Kuopio 70211, Finland.
| | - Mika Reinisalo
- School of Pharmacy, University of Eastern Finland, Kuopio 70211, Finland.
| | - Goran Petrovski
- Stem Cells and Eye Research Laboratory, Department of Ophthalmology, Faculty of Medicine, University of Szeged, Szeged 6720, Hungary.
- Centre of Eye Research, Department of Ophthalmology, Oslo University Hospital, University of Oslo, Oslo 0450, Norway.
| | - Debasish Sinha
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
| | - Céline Olmiere
- Laboratoires Théa, Clermond-Ferrand cedex 63 000, France.
| | - Reijo Karjalainen
- Department of Biology, University of Eastern Finland, Kuopio 70211, Finland.
| | - Kai Kaarniranta
- Department of Ophthalmology, University of Eastern Finland, Kuopio 70211, Finland.
- Department of Ophthalmology, Kuopio University Hospital, Kuopio 70029, Finland.
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