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Kumar J, Uppulapu SK, Kumari S, Sharma K, Paradee W, Yadav RP, Kumar V, Kumar S. P66Shc Mediates SUMO2-induced Endothelial Dysfunction. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.24.577109. [PMID: 38328241 PMCID: PMC10849724 DOI: 10.1101/2024.01.24.577109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Sumoylation is a post-translational modification that can regulate different physiological functions. Increased sumoylation, specifically conjugation of SUMO2/3 (small ubiquitin like modifier 2/3), is detrimental to vascular health. However, the molecular mechanism mediating this effect is poorly understood. Here, we demonstrate that SUMO2 modifies p66Shc, which impairs endothelial function. Using multiple approaches, we show that p66Shc is a direct target of SUMO2. Mass spectrometry identified that SUMO2 modified lysine-81 in the unique collagen homology-2 domain of p66Shc. SUMO2ylation of p66Shc increased phosphorylation at serine-36, causing it to translocate to the mitochondria. Notably, sumoylation-deficient p66Shc (p66ShcK81R) was resistant to SUMO2-induced p66ShcS36 phosphorylation and mitochondrial translocation. Ingenuity pathway analysis showed that majority of effects of p66Shc SUMO2ylation were mediated via p66ShcK81. Finally, p66ShcK81R knockin mice were resistant to SUMO2-induced endothelial dysfunction. Collectively, our work uncovers a posttranslational modification of redox protein p66Shc and identifies SUMO2-p66Shc signaling as a regulator of vascular endothelial function.
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Zhang L, Xia C, Yang Y, Sun F, Zhang Y, Wang H, Liu R, Yuan M. DNA methylation and histone post-translational modifications in atherosclerosis and a novel perspective for epigenetic therapy. Cell Commun Signal 2023; 21:344. [PMID: 38031118 PMCID: PMC10688481 DOI: 10.1186/s12964-023-01298-8] [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: 08/08/2022] [Accepted: 08/27/2023] [Indexed: 12/01/2023] Open
Abstract
Atherosclerosis, which is a vascular pathology characterized by inflammation and plaque build-up within arterial vessel walls, acts as the important cause of most cardiovascular diseases. Except for a lipid-depository and chronic inflammatory, increasing evidences propose that epigenetic modifications are increasingly associated with atherosclerosis and are of interest from both therapeutic and biomarker perspectives. The chronic progressive nature of atherosclerosis has highlighted atherosclerosis heterogeneity and the fact that specific cell types in the complex milieu of the plaque are, by far, not the only initiators and drivers of atherosclerosis. Instead, the ubiquitous effects of cell type are tightly controlled and directed by the epigenetic signature, which, in turn, is affected by many proatherogenic stimuli, including low-density lipoprotein, proinflammatory, and physical forces of blood circulation. In this review, we summarize the role of DNA methylation and histone post-translational modifications in atherosclerosis. The future research directions and potential therapy for the management of atherosclerosis are also discussed. Video Abstract.
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Affiliation(s)
- Liang Zhang
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Chenhai Xia
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Yongjun Yang
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Fangfang Sun
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Yu Zhang
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Huan Wang
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China
| | - Rui Liu
- Department of Rehabilitation, Tangdu Hospital, Air Force Military Medical University, No. 1 Xinsi Road, Xi'an 710000, China.
| | - Ming Yuan
- Department of Cardiology, Xijing Hospital, Air Force Military Medical University, No. 127 Changle West Road, Xi'an, 710032, China.
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3
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Zhang Z, Li X, He J, Wang S, Wang J, Liu J, Wang Y. Molecular mechanisms of endothelial dysfunction in coronary microcirculation dysfunction. J Thromb Thrombolysis 2023; 56:388-397. [PMID: 37466848 DOI: 10.1007/s11239-023-02862-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/01/2023] [Indexed: 07/20/2023]
Abstract
Coronary microvascular endothelial cells (CMECs) react to changes in coronary blood flow and myocardial metabolites and regulate coronary blood flow by balancing vasoconstrictors-such as endothelin-1-and the vessel dilators prostaglandin, nitric oxide, and endothelium-dependent hyperpolarizing factor. Coronary microvascular endothelial cell dysfunction is caused by several cardiovascular risk factors and chronic rheumatic diseases that impact CMEC blood flow regulation, resulting in coronary microcirculation dysfunction (CMD). The mechanisms of CMEC dysfunction are not fully understood. However, the following could be important mechanisms: the overexpression and activation of nicotinamide adenine dinucleotide phosphate oxidase (Nox), and mineralocorticoid receptors; the involvement of reactive oxygen species (ROS) caused by a decreased expression of sirtuins (SIRT3/SIRT1); forkhead box O3; and a decreased SKCA/IKCA expression in the endothelium-dependent hyperpolarizing factor electrical signal pathway. In addition, p66Shc is an adapter protein that promotes oxidative stress; although there are no studies on its involvement with cardiac microvessels, it is possible it plays an important role in CMD.
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Affiliation(s)
- Zhiyu Zhang
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China
| | - Xiangjun Li
- Department of Experimental Pharmacology and Toxicology, College of Pharmacy, Jilin University, Changchun, 130000, China
| | - Jiahuan He
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China
| | - Shipeng Wang
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China
| | - Jingyue Wang
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China
| | - Junqian Liu
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China
| | - Yushi Wang
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China.
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Harrington JS, Ryter SW, Plataki M, Price DR, Choi AMK. Mitochondria in health, disease, and aging. Physiol Rev 2023; 103:2349-2422. [PMID: 37021870 PMCID: PMC10393386 DOI: 10.1152/physrev.00058.2021] [Citation(s) in RCA: 87] [Impact Index Per Article: 87.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 04/07/2023] Open
Abstract
Mitochondria are well known as organelles responsible for the maintenance of cellular bioenergetics through the production of ATP. Although oxidative phosphorylation may be their most important function, mitochondria are also integral for the synthesis of metabolic precursors, calcium regulation, the production of reactive oxygen species, immune signaling, and apoptosis. Considering the breadth of their responsibilities, mitochondria are fundamental for cellular metabolism and homeostasis. Appreciating this significance, translational medicine has begun to investigate how mitochondrial dysfunction can represent a harbinger of disease. In this review, we provide a detailed overview of mitochondrial metabolism, cellular bioenergetics, mitochondrial dynamics, autophagy, mitochondrial damage-associated molecular patterns, mitochondria-mediated cell death pathways, and how mitochondrial dysfunction at any of these levels is associated with disease pathogenesis. Mitochondria-dependent pathways may thereby represent an attractive therapeutic target for ameliorating human disease.
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Affiliation(s)
- John S Harrington
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine, New York, New York, United States
| | | | - Maria Plataki
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine, New York, New York, United States
| | - David R Price
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine, New York, New York, United States
| | - Augustine M K Choi
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine, New York, New York, United States
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5
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Han YC, Liu YT, Zhang H, Xu Y, Liu J, Chen H, Song N, Qin DL, Yang S. VDR alleviates endothelial cell injury in arteriovenous fistula through inhibition of P66Shc-mediated mitochondrial ROS. Sci Rep 2023; 13:11088. [PMID: 37422508 PMCID: PMC10329703 DOI: 10.1038/s41598-023-37510-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/22/2023] [Indexed: 07/10/2023] Open
Abstract
To investigate the effects and mechanism of Vitamin D receptor (VDR) signaling on arteriovenous fistula (AVF) endothelial cell injury. Venous tissues of AVF stenosis patients were collected and analyzed, vascular morphology, reactive oxygen species (ROS), and the expression of VDR, P66Shc, fibronectin (FN), collagen-1 (Col-1) were detected. In addition, human umbilical vein endothelial cells (HUVECs) was used in in vitro studies. HUVECs was incubated with transforming growth factor-beta (TGF-β, 50 ng/ml). Aditionally, paricalcitol, VDR overexpression plasmid and Pin1 inhibitor Juglone were used to investigate the regulatory mechanism of VDR in mitochondrial ROS. The parameters of ROS (e.g. MitoSox) and the expression of FN, Col-1 were tested. Moreover, the mitochondrial translocation of P66Shc was analyzed. The expression of VDR was obviously decreased in the venous tissues of AVF stenosis patients. On the contrary, the expression of P66Shc, P-P66Shc, FN, Col-1 and 8-OHdG were increased significantly in the venous tissues of AVF stenosis patients (P < 0.05). In line with this, the level of mitochondrial ROS and the expression of P66Shc, P-P66Shc, FN, Col-1 increased obviously in HUVECs cells under TGF-β condition. Both VDR over-expression plasmid and Pin1 inhibitor Juglone could alleviate TGF-β induced endothelial injury. Mechanistically, VDR overexpression plasmid and Juglone could inhibit the expression of Pin1, and then restrain P66Shc mitochondrial translocation, eventually reduce the level of mitochondrial ROS. Our research indicated that activation of VDR could alleviate venous endothelial cell dysfunction through inhibiting Pin1-mediated mitochondrial translocation of P66Shc and consequently reducing mitochondrial ROS. It suggested that VDR signaling might be an effective target for AVF stenosis treatment.
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Affiliation(s)
- Ya-Chun Han
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yu-Ting Liu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Hao Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Yong Xu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Jun Liu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Hong Chen
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Na Song
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Dong-Lu Qin
- Department of Cardiovascular, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Shikun Yang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China.
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Jiang T, Qin T, Gao P, Tao Z, Wang X, Wu M, Gu J, Chu B, Zheng Z, Yi J, Xu T, Huang Y, Liu H, Zhao S, Ren Y, Chen J, Yin G. SIRT1 attenuates blood-spinal cord barrier disruption after spinal cord injury by deacetylating p66Shc. Redox Biol 2023; 60:102615. [PMID: 36716673 PMCID: PMC9900454 DOI: 10.1016/j.redox.2023.102615] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/12/2023] [Accepted: 01/23/2023] [Indexed: 01/26/2023] Open
Abstract
Disruption of the blood-spinal cord barrier (BSCB) leads to inflammatory cell infiltration and neural cell death, thus, contributing to poor functional recovery after spinal cord injury (SCI). Previous studies have suggested that Sirtuin 1 (SIRT1), an NAD+-dependent class III histone deacetylase, is abundantly expressed in endothelial cells and promotes endothelial homeostasis. However, the role of SIRT1 in BSCB function after SCI remains poorly defined. Here, we report that SIRT1 is highly expressed in spinal cord endothelial cells, and its expression significantly decreases after SCI. Using endothelial cell-specific SIRT1 knockout mice, we observed that endothelial cell-specific knockout of SIRT1 aggravated BSCB disruption, thus, resulting in widespread inflammation, neural cell death and poor functional recovery after SCI. In contrast, activation of SIRT1 by the agonist SRT1720 had beneficial effects. In vitro, knockdown of SIRT1 exacerbated IL-1β-induced endothelial barrier disruption in bEnd.3 cells, whereas overexpression of SIRT1 was protective. Using RNA-seq and IP/MS analysis, we identified p66Shc, a redox protein, as the potential target of SIRT1. Further studies demonstrated that SIRT1 interacts with and deacetylates p66Shc, thereby attenuating oxidative stress and protecting endothelial barrier function. Overall, our results indicate that SIRT1 decreases endothelial ROS production and attenuates BSCB disruption by deacetylating p66Shc after SCI, and suggest that SIRT1 activation has potential as a therapeutic approach to promote functional recovery against BSCB disruption following SCI.
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Affiliation(s)
- Tao Jiang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Tao Qin
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Peng Gao
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhiwen Tao
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Xiaowei Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Mengyuan Wu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jun Gu
- Department of Orthopedics, Xishan People's Hospital, Wuxi, 214000, Jiangsu, China
| | - Bo Chu
- Department of Orthopedics, Xishan People's Hospital, Wuxi, 214000, Jiangsu, China
| | - Ziyang Zheng
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jiang Yi
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Tao Xu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yifan Huang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Hao Liu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Shujie Zhao
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Yongxin Ren
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Jian Chen
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Guoyong Yin
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
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7
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Shi S, Chen Y, Luo Z, Nie G, Dai Y. Role of oxidative stress and inflammation-related signaling pathways in doxorubicin-induced cardiomyopathy. Cell Commun Signal 2023; 21:61. [PMID: 36918950 PMCID: PMC10012797 DOI: 10.1186/s12964-023-01077-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/12/2023] [Indexed: 03/16/2023] Open
Abstract
Doxorubicin (DOX) is a powerful and commonly used chemotherapeutic drug, used alone or in combination in a variety of cancers, while it has been found to cause serious cardiac side effects in clinical application. More and more researchers are trying to explore the molecular mechanisms of DOX-induced cardiomyopathy (DIC), in which oxidative stress and inflammation are considered to play a significant role. This review summarizes signaling pathways related to oxidative stress and inflammation in DIC and compounds that exert cardioprotective effects by acting on relevant signaling pathways, including the role of Nrf2/Keap1/ARE, Sirt1/p66Shc, Sirt1/PPAR/PGC-1α signaling pathways and NOS, NOX, Fe2+ signaling in oxidative stress, as well as the role of NLRP3/caspase-1/GSDMD, HMGB1/TLR4/MAPKs/NF-κB, mTOR/TFEB/NF-κB pathways in DOX-induced inflammation. Hence, we attempt to explain the mechanisms of DIC in terms of oxidative stress and inflammation, and to provide a theoretical basis or new idea for further drug research on reducing DIC. Video Abstract.
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Affiliation(s)
- Saixian Shi
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Luzhou, 646000, Sichuan Province, China.,School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan Province, China
| | - Ye Chen
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Luzhou, 646000, Sichuan Province, China.,School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan Province, China
| | - Zhijian Luo
- Department of Ultrasound, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan Province, China
| | - Guojun Nie
- The First Outpatient Department of People's Liberation Army Western Theater General Hospital, Chengdu, 610000, Sichuan Province, China
| | - Yan Dai
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Luzhou, 646000, Sichuan Province, China.
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8
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Jiang Y, Xiang Y, Lin C, Zhang W, Yang Z, Xiang L, Xiao Y, Chen L, Ran Q, Li Z. Multifunctions of CRIF1 in cancers and mitochondrial dysfunction. Front Oncol 2022; 12:1009948. [PMID: 36263222 PMCID: PMC9574215 DOI: 10.3389/fonc.2022.1009948] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/14/2022] [Indexed: 11/23/2022] Open
Abstract
Sustaining proliferative signaling and enabling replicative immortality are two important hallmarks of cancer. The complex of cyclin-dependent kinase (CDK) and its cyclin plays a decisive role in the transformation of the cell cycle and is also critical in the initiation and progression of cancer. CRIF1, a multifunctional factor, plays a pivotal role in a series of cell biological progresses such as cell cycle, cell proliferation, and energy metabolism. CRIF1 is best known as a negative regulator of the cell cycle, on account of directly binding to Gadd45 family proteins or CDK2. In addition, CRIF1 acts as a regulator of several transcription factors such as Nur77 and STAT3 and partly determines the proliferation of cancer cells. Many studies showed that the expression of CRIF1 is significantly altered in cancers and potentially regarded as a tumor suppressor. This suggests that targeting CRIF1 would enhance the selectivity and sensitivity of cancer treatment. Moreover, CRIF1 might be an indispensable part of mitoribosome and is involved in the regulation of OXPHOS capacity. Further, CRIF1 is thought to be a novel target for the underlying mechanism of diseases with mitochondrial dysfunctions. In summary, this review would conclude the latest aspects of studies about CRIF1 in cancers and mitochondria-related diseases, shed new light on targeted therapy, and provide a more comprehensive holistic view.
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Affiliation(s)
- Yangzhou Jiang
- Laboratory of Radiation Biology, Laboratory Medicine Center, Department of Blood Transfusion, The Second Affiliated Hospital, Army Military Medical University, Chongqing, China
| | - Yang Xiang
- Laboratory of Radiation Biology, Laboratory Medicine Center, Department of Blood Transfusion, The Second Affiliated Hospital, Army Military Medical University, Chongqing, China
| | - Chuanchuan Lin
- Laboratory of Radiation Biology, Laboratory Medicine Center, Department of Blood Transfusion, The Second Affiliated Hospital, Army Military Medical University, Chongqing, China
| | - Weiwei Zhang
- Laboratory of Radiation Biology, Laboratory Medicine Center, Department of Blood Transfusion, The Second Affiliated Hospital, Army Military Medical University, Chongqing, China
| | - Zhenxing Yang
- Laboratory of Radiation Biology, Laboratory Medicine Center, Department of Blood Transfusion, The Second Affiliated Hospital, Army Military Medical University, Chongqing, China
| | - Lixin Xiang
- Laboratory of Radiation Biology, Laboratory Medicine Center, Department of Blood Transfusion, The Second Affiliated Hospital, Army Military Medical University, Chongqing, China
| | - Yanni Xiao
- Laboratory of Radiation Biology, Laboratory Medicine Center, Department of Blood Transfusion, The Second Affiliated Hospital, Army Military Medical University, Chongqing, China
| | - Li Chen
- Laboratory of Radiation Biology, Laboratory Medicine Center, Department of Blood Transfusion, The Second Affiliated Hospital, Army Military Medical University, Chongqing, China
| | - Qian Ran
- Laboratory of Radiation Biology, Laboratory Medicine Center, Department of Blood Transfusion, The Second Affiliated Hospital, Army Military Medical University, Chongqing, China
| | - Zhongjun Li
- Laboratory of Radiation Biology, Laboratory Medicine Center, Department of Blood Transfusion, The Second Affiliated Hospital, Army Military Medical University, Chongqing, China
- State Key Laboratory of Trauma, Burn and Combined Injuries, The Second Affiliated Hospital, Army Medical University, Chongqing, China
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9
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Mengozzi A, Costantino S, Paneni F, Duranti E, Nannipieri M, Mancini R, Lai M, La Rocca V, Puxeddu I, Antonioli L, Fornai M, Ghionzoli M, Georgiopoulos G, Ippolito C, Bernardini N, Ruschitzka F, Pugliese NR, Taddei S, Virdis* A, Masi S. Targeting SIRT1 Rescues Age- and Obesity-Induced Microvascular Dysfunction in Ex Vivo Human Vessels. Circ Res 2022; 131:476-491. [PMID: 35968712 PMCID: PMC9426744 DOI: 10.1161/circresaha.122.320888] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Experimental evidence suggests a key role of SIRT1 (silent information regulator 1) in age- and metabolic-related vascular dysfunction. Whether these effects hold true in the human microvasculature is unknown. We aimed to investigate the SIRT1 role in very early stages of age- and obesity-related microvascular dysfunction in humans. METHODS Ninety-five subjects undergoing elective laparoscopic surgery were recruited and stratified based on their body mass index status (above or below 30 kg/m2) and age (above or below 40 years) in 4 groups: Young Nonobese, Young Obese, Old Nonobese, and Old Obese. We measured small resistance arteries' endothelial function by pressurized micromyography before and after incubation with a SIRT1 agonist (SRT1720) and a mitochondria reactive oxygen species (mtROS) scavenger (MitoTEMPO). We assessed vascular levels of mtROS and nitric oxide availability by confocal microscopy and vascular gene expression of SIRT1 and mitochondrial proteins by qPCR. Chromatin immunoprecipitation assay was employed to investigate SIRT1-dependent epigenetic regulation of mitochondrial proteins. RESULTS Compared with Young Nonobese, obese and older patients showed lower vascular expression of SIRT1 and antioxidant proteins (FOXO3 [forkhead box protein O3] and SOD2) and higher expression of pro-oxidant and aging mitochondria proteins p66Shc and Arginase II. Old Obese, Young Obese and Old Nonobese groups endothelial dysfunction was rescued by SRT1720. The restoration was comparable to the one obtained with mitoTEMPO. These effects were explained by SIRT1-dependent chromatin changes leading to reduced p66Shc expression and upregulation of proteins involved in mitochondria respiratory chain. CONCLUSIONS SIRT1 is a novel central modulator of the earliest microvascular damage induced by age and obesity. Through a complex epigenetic control mainly involving p66Shc and Arginase II, it influences mtROS levels, NO availability, and the expression of proteins of the mitochondria respiratory chain. Therapeutic modulation of SIRT1 restores obesity- and age-related endothelial dysfunction. Early targeting of SIRT1 might represent a crucial strategy to prevent age- and obesity-related microvascular dysfunction.
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Affiliation(s)
- Alessandro Mengozzi
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy.,Scuola Superiore Sant’Anna, Pisa, Italy (A.M., V.L.R., N.B.)
| | - Sarah Costantino
- Center for Molecular Cardiology, University of Zürich, Switzerland (S.C., F.P.)
| | - Francesco Paneni
- Center for Molecular Cardiology, University of Zürich, Switzerland (S.C., F.P.).,Department of Cardiology, University Heart Center (F.P., F.R.), University Hospital Zurich, Switzerland.,Department of Research and Education (F.P.), University Hospital Zurich, Switzerland
| | - Emiliano Duranti
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy
| | - Monica Nannipieri
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy
| | - Rudj Mancini
- Unit of Bariatric Surgery, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy (R.M.)
| | - Michele Lai
- Retrovirus Center and Virology Section, Department of Translational Research and New Technologies in Medicine and Surgery (M.L., V.L.R.), University of Pisa, Italy
| | - Veronica La Rocca
- Retrovirus Center and Virology Section, Department of Translational Research and New Technologies in Medicine and Surgery (M.L., V.L.R.), University of Pisa, Italy.,Scuola Superiore Sant’Anna, Pisa, Italy (A.M., V.L.R., N.B.)
| | - Ilaria Puxeddu
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy
| | - Luca Antonioli
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy
| | - Matteo Fornai
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy
| | - Marco Ghionzoli
- Paediatric Surgery Unit, Meyer Children’s Hospital, Florence, Italy (M.G.)
| | - Georgios Georgiopoulos
- School of Biomedical Engineering and Imaging Sciences, King’s College London, United Kingdom (G.G.).,Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Greece (G.G.)
| | - Chiara Ippolito
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy
| | - Nunzia Bernardini
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy.,Scuola Superiore Sant’Anna, Pisa, Italy (A.M., V.L.R., N.B.)
| | - Frank Ruschitzka
- Department of Cardiology, University Heart Center (F.P., F.R.), University Hospital Zurich, Switzerland
| | - Nicola Riccardo Pugliese
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy
| | - Stefano Taddei
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy
| | - Agostino Virdis*
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy
| | - Stefano Masi
- Department of Clinical and Experimental Medicine (A.M., E.D., M.N., I.P., L.A., M.F., C.I., N.B., N.R.P., S.T., A.V., S.M.), University of Pisa, Italy.,Institute of Cardiovascular Science, University College London, United Kingdom (S.M.)
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10
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Haslem L, Hays JM, Hays FA. p66Shc in Cardiovascular Pathology. Cells 2022; 11:cells11111855. [PMID: 35681549 PMCID: PMC9180016 DOI: 10.3390/cells11111855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 02/06/2023] Open
Abstract
p66Shc is a widely expressed protein that governs a variety of cardiovascular pathologies by generating, and exacerbating, pro-apoptotic ROS signals. Here, we review p66Shc’s connections to reactive oxygen species, expression, localization, and discuss p66Shc signaling and mitochondrial functions. Emphasis is placed on recent p66Shc mitochondrial function discoveries including structure/function relationships, ROS identity and regulation, mechanistic insights, and how p66Shc-cyt c interactions can influence p66Shc mitochondrial function. Based on recent findings, a new p66Shc mitochondrial function model is also put forth wherein p66Shc acts as a rheostat that can promote or antagonize apoptosis. A discussion of how the revised p66Shc model fits previous findings in p66Shc-mediated cardiovascular pathology follows.
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Affiliation(s)
- Landon Haslem
- Biochemistry and Molecular Biology Department, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (L.H.); (J.M.H.)
| | - Jennifer M. Hays
- Biochemistry and Molecular Biology Department, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (L.H.); (J.M.H.)
| | - Franklin A. Hays
- Biochemistry and Molecular Biology Department, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (L.H.); (J.M.H.)
- Stephenson Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Correspondence:
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11
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Gierhardt M, Pak O, Sydykov A, Kraut S, Schäffer J, Garcia C, Veith C, Zeidan EM, Brosien M, Quanz K, Esfandiary A, Saraji A, Hadzic S, Kojonazarov B, Wilhelm J, Ghofrani HA, Schermuly RT, Seeger W, Grimminger F, Herden C, Schulz R, Weissmann N, Heger J, Sommer N. Genetic deletion of p66shc and/or cyclophilin D results in decreased pulmonary vascular tone. Cardiovasc Res 2022; 118:305-315. [PMID: 33119054 PMCID: PMC8752355 DOI: 10.1093/cvr/cvaa310] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 10/15/2020] [Indexed: 11/13/2022] Open
Abstract
AIMS The pulmonary vascular tone and hypoxia-induced alterations of the pulmonary vasculature may be regulated by the mitochondrial membrane permeability transition pore (mPTP) that controls mitochondrial calcium load and apoptosis. We thus investigated, if the mitochondrial proteins p66shc and cyclophilin D (CypD) that regulate mPTP opening affect the pulmonary vascular tone. METHODS AND RESULTS Mice deficient for p66shc (p66shc-/-), CypD (CypD-/-), or both proteins (p66shc/CypD-/-) exhibited decreased pulmonary vascular resistance (PVR) compared to wild-type mice determined in isolated lungs and in vivo. In contrast, systemic arterial pressure was only lower in CypD-/- mice. As cardiac function and pulmonary vascular remodelling did not differ between genotypes, we determined alterations of vascular contractility in isolated lungs and calcium handling in pulmonary arterial smooth muscle cells (PASMC) as underlying reason for decreased PVR. Potassium chloride (KCl)-induced pulmonary vasoconstriction and KCl-induced cytosolic calcium increase determined by Fura-2 were attenuated in all gene-deficient mice. In contrast, KCl-induced mitochondrial calcium increase determined by the genetically encoded Mito-Car-GECO and calcium retention capacity were increased only in CypD-/- and p66shc/CypD-/- mitochondria indicating that decreased mPTP opening affected KCl-induced intracellular calcium peaks in these cells. All mouse strains showed a similar pulmonary vascular response to chronic hypoxia, while acute hypoxic pulmonary vasoconstriction was decreased in gene-deficient mice indicating that CypD and p66shc regulate vascular contractility but not remodelling. CONCLUSIONS We conclude that p66shc specifically regulates the pulmonary vascular tone, while CypD also affects systemic pressure. However, only CypD acts via regulation of mPTP opening and mitochondrial calcium regulation.
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MESH Headings
- Animals
- Arterial Pressure
- Calcium/metabolism
- Calcium Signaling
- Cell Proliferation
- Cells, Cultured
- Peptidyl-Prolyl Isomerase F/deficiency
- Peptidyl-Prolyl Isomerase F/genetics
- Disease Models, Animal
- Gene Deletion
- Hypertension, Pulmonary/enzymology
- Hypertension, Pulmonary/etiology
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/physiopathology
- Hypoxia/complications
- Mice, Inbred C57BL
- Mice, Knockout
- Mitochondria/enzymology
- Mitochondria/genetics
- Mitochondrial Permeability Transition Pore/metabolism
- Pulmonary Artery/enzymology
- Pulmonary Artery/physiopathology
- Src Homology 2 Domain-Containing, Transforming Protein 1/deficiency
- Src Homology 2 Domain-Containing, Transforming Protein 1/genetics
- Vascular Remodeling
- Vascular Resistance
- Vasoconstriction
- Mice
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Affiliation(s)
- Mareike Gierhardt
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - CONICET - Partner Institute of the Max Planck Society, Buenos Aires, Argentina
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
| | - Oleg Pak
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Akylbek Sydykov
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Simone Kraut
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Julia Schäffer
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Claudia Garcia
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Christine Veith
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Esraa M Zeidan
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, El-Minia, Egypt
| | - Monika Brosien
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Karin Quanz
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Azadeh Esfandiary
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Alireza Saraji
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Stefan Hadzic
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Baktybek Kojonazarov
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
- Institute for Lung Health (ILH), Giessen, Germany
| | - Jochen Wilhelm
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
- Institute for Lung Health (ILH), Giessen, Germany
| | - Hossein A Ghofrani
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
- Department of Medicine, Imperial College London, Du Cane Road, Hammersmith Campus, London, W12 0NN, UK
| | - Ralph T Schermuly
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Werner Seeger
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
| | - Friedrich Grimminger
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Christiane Herden
- Institute of Veterinary Pathology, Justus-Liebig University, Giessen, Germany
| | - Rainer Schulz
- Institute of Physiology, Justus-Liebig University, Giessen, Germany
| | - Norbert Weissmann
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
| | - Jacqueline Heger
- Institute of Physiology, Justus-Liebig University, Giessen, Germany
| | - Natascha Sommer
- Excellence Cluster Cardio Pulmonary Institute (CPI), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus-Liebig University, Giessen, Germany
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12
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Old and New Biomarkers Associated with Endothelial Dysfunction in Chronic Hyperglycemia. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2021:7887426. [PMID: 34987703 PMCID: PMC8723873 DOI: 10.1155/2021/7887426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/18/2021] [Accepted: 11/20/2021] [Indexed: 11/18/2022]
Abstract
Chronic hyperglycemia and vascular damage are strictly related. Biomarkers of vascular damage have been intensively studied in the recent years in the quest of reliable cardiovascular risk assessment tools able to facilitate risk stratification and early detection of vascular impairment. The present study is a narrative review with the aim of revising the available evidence on current and novel markers of hyperglycemia-induced vascular damage. After a discussion of classic tools used to investigate endothelial dysfunction, we provide an in-depth description of novel circulating biomarkers (chemokines, extracellular vesicles, and epigenetic and metabolomic biomarkers). Appropriate use of a single as well as a cluster of the discussed biomarkers might enable in a near future (a) the prompt identification of targeted and customized treatment strategies and (b) the follow-up of cardiovascular treatment efficacy over time in clinical research and/or in clinical practice.
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13
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Mousavi S, Khazeei Tabari MA, Bagheri A, Samieefar N, Shaterian N, Kelishadi R. The Role of p66Shc in Diabetes: A Comprehensive Review from Bench to Bedside. J Diabetes Res 2022; 2022:7703520. [PMID: 36465704 PMCID: PMC9715346 DOI: 10.1155/2022/7703520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/02/2022] [Accepted: 11/09/2022] [Indexed: 11/27/2022] Open
Abstract
It is well-documented that diabetes is an inflammatory and oxidative disease, with an escalating global burden. Still, there is no definite treatment for diabetes or even prevention of its harmful complications. Therefore, understanding the molecular pathways associated with diabetes might help in finding a solution. p66Shc is a member of Shc family proteins, and it is considered as an oxidative stress sensor and regulator in cells. There are inconsistent data about the role of p66Shc in inducing diabetes, but accumulating evidence supports its role in the pathogenesis of diabetes-related complications, including macro and microangiopathies. There is growing hope that by understanding and targeting molecular pathways involved in this network, prevention of diabetes or its complications would be achievable. This review provides an overview about the role of p66Shc in the development of diabetes and its complications.
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Affiliation(s)
- SeyedehFatemeh Mousavi
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- USERN Office, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Khazeei Tabari
- Student Research Committee, Mazandaran University of Medical Sciences, Mazandaran, Iran
- USERN Office, Mazandaran University of Medical Sciences, Mazandaran, Iran
| | - Alireza Bagheri
- USERN Office, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Genetics, Faculty of Basic Sciences, Shahrekord University, Shahrekord, Iran
| | - Noosha Samieefar
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- USERN Office, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Negar Shaterian
- Student Research Committee, School of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran
- USERN Office, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
- USERN Office, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
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14
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Zhang H, Pang X, Yu H, Zhou H. Genistein suppresses ox-LDL-elicited oxidative stress and senescence in HUVECs through the SIRT1-p66shc-Foxo3a pathways. J Biochem Mol Toxicol 2021; 36:e22939. [PMID: 34719845 DOI: 10.1002/jbt.22939] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 08/09/2021] [Accepted: 10/18/2021] [Indexed: 01/10/2023]
Abstract
The anti-senescence function of genistein is related to inhibiting oxidative stress, however, the mechanism has not been clarified. The present study aimed to explore the effects of genistein on oxidized low-density lipoprotein (ox-LDL)-induced endothelial senescence and the role of the sirtuin-1 (SIRT1)-66-kDa Src homology 2 domain-containing protein (p66Shc)-forkhead box protein O3 (Foxo3a) pathways in the process. In this paper, human umbilical vein endothelial cells were pretreated with 1000 nM genistein for 30 min and then incubated with 50 mg/L ox-LDL for another 12 h; meanwhile, the functions of adenovirus-mediated overexpression of p66shc and small interfering RNA-mediated silencing of SIRT1 were investigated. Results showed that genistein pretreatment alleviated ox-LDL-induced mitochondrial reactive oxygen species, the levels of oxidatively modified DNA (8-OHdG) and pai-1, and the activity of SA-β-gal, which was associated with mitigating p66shc. Further studies indicated the inhibitory effect of genistein on p66shc was correlated with suppressing the acetylation and phosphorylation of p66shc, and ameliorating its mitochondrial translocation by activating SIRT1. Moreover, the inactivated p66shc could enhance the activity of Foxo3a via restraining the phosphorylation and triggering nucleus accumulation. The study demonstrates genistein could prevent ox-LDL-induced mitochondrial oxidative stress and senescence through the SIRT1-p66shc-Foxo3a pathways.
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Affiliation(s)
- Huaping Zhang
- Translational Medicine Research Center, Shanxi Medical University, Taiyuan, Shanxi, PR China
| | - Xuefen Pang
- National Key Disciplines, Key Laboratory for Cellular Physiology of Ministry of Education, Shanxi Medical University, Taiyuan, Shanxi, PR China
| | - Haixia Yu
- Translational Medicine Research Center, Shanxi Medical University, Taiyuan, Shanxi, PR China
| | - Hui Zhou
- Translational Medicine Research Center, Shanxi Medical University, Taiyuan, Shanxi, PR China
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15
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Tracy EP, Hughes W, Beare JE, Rowe G, Beyer A, LeBlanc AJ. Aging-Induced Impairment of Vascular Function: Mitochondrial Redox Contributions and Physiological/Clinical Implications. Antioxid Redox Signal 2021; 35:974-1015. [PMID: 34314229 PMCID: PMC8905248 DOI: 10.1089/ars.2021.0031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Significance: The vasculature responds to the respiratory needs of tissue by modulating luminal diameter through smooth muscle constriction or relaxation. Coronary perfusion, diastolic function, and coronary flow reserve are drastically reduced with aging. This loss of blood flow contributes to and exacerbates pathological processes such as angina pectoris, atherosclerosis, and coronary artery and microvascular disease. Recent Advances: Increased attention has recently been given to defining mechanisms behind aging-mediated loss of vascular function and development of therapeutic strategies to restore youthful vascular responsiveness. The ultimate goal aims at providing new avenues for symptom management, reversal of tissue damage, and preventing or delaying of aging-induced vascular damage and dysfunction in the first place. Critical Issues: Our major objective is to describe how aging-associated mitochondrial dysfunction contributes to endothelial and smooth muscle dysfunction via dysregulated reactive oxygen species production, the clinical impact of this phenomenon, and to discuss emerging therapeutic strategies. Pathological changes in regulation of mitochondrial oxidative and nitrosative balance (Section 1) and mitochondrial dynamics of fission/fusion (Section 2) have widespread effects on the mechanisms underlying the ability of the vasculature to relax, leading to hyperconstriction with aging. We will focus on flow-mediated dilation, endothelial hyperpolarizing factors (Sections 3 and 4), and adrenergic receptors (Section 5), as outlined in Figure 1. The clinical implications of these changes on major adverse cardiac events and mortality are described (Section 6). Future Directions: We discuss antioxidative therapeutic strategies currently in development to restore mitochondrial redox homeostasis and subsequently vascular function and evaluate their potential clinical impact (Section 7). Antioxid. Redox Signal. 35, 974-1015.
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Affiliation(s)
- Evan Paul Tracy
- Department of Physiology, University of Louisville, Louisville, Kentucky, USA
| | - William Hughes
- Department of Medicine and Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Jason E Beare
- Cardiovascular Innovation Institute, University of Louisville, Louisville, Kentucky, USA.,Kentucky Spinal Cord Injury Research Center, University of Louisville, Louisville, Kentucky, USA
| | - Gabrielle Rowe
- Department of Physiology, University of Louisville, Louisville, Kentucky, USA
| | - Andreas Beyer
- Department of Medicine and Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Amanda Jo LeBlanc
- Department of Physiology, University of Louisville, Louisville, Kentucky, USA.,Cardiovascular Innovation Institute, University of Louisville, Louisville, Kentucky, USA
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16
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Wang K, Ni J, Zhu X, Zhu L, Li Y, Zhou F. Ginkgo biloba extract protects human neuroblastoma SH-SY5Y cells against oxidative glutamate toxicity by activating redoxosome-p66Shc. Exp Ther Med 2021; 22:951. [PMID: 34335893 PMCID: PMC8290427 DOI: 10.3892/etm.2021.10383] [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: 06/03/2020] [Accepted: 12/01/2020] [Indexed: 11/17/2022] Open
Abstract
Ginkgo biloba extract (GBE), a traditional Chinese herbal medicine component, is widely used to alleviate symptoms of neurodegenerative diseases. It has been confirmed that GBE exerts its pharmacological effect mainly due to its antioxidant activity; however, the molecular mechanism responsible for this effect remains unclear. The aim of the present study was to investigate the detailed mechanism of GBE, the main component of Gingko biloba dropping medicine, against oxidative glutamate toxicity in human neuroblastoma SH-SY5Y cells. The SH-SY5Y cells were untreated or pretreated with GBE followed by glutamate stimulation. Cell viability was assessed using an MTT assay. In addition, oxidative stress indexes, including intracellular ROS generation and NADPH oxidase and caspase activity, were also measured. The protein expression of key signaling factors involved in the redoxosome-p66Shc pathway was evaluated to elucidate the neuroprotective effect of GBE. The results showed that GBE treatment significantly attenuated the glutamate-induced cytotoxicity in SH-SY5Y cells by suppressing oxidative stress. A mechanical study revealed that redoxosome-p66Shc activation was associated with glutamate-induced cytotoxicity, which caused mitochondrial dysfunction and cell death. Interestingly, GBE treatment attenuated the activation of redoxosome-p66Shc in a dose-dependent manner, which suggested that the protective effect of GBE on SH-SY5Y cells against oxidative glutamate toxicity may be mediated by the modulation of redoxosome-p66Shc signaling. The current findings contribute to a better understanding of the therapeutic effect of GBE and indicate that redoxosome-p66Shc signaling might be a novel therapeutic target in the prevention and/or treatment of neurodegenerative diseases.
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Affiliation(s)
- Ke Wang
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, Jiangsu 214063, P.R. China
| | - Jing Ni
- Department of Geriatric Rehabilitation, Jiangsu Rongjun Hospital, Wuxi, Jiangsu 214035, P.R. China
| | - Xue Zhu
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, Jiangsu 214063, P.R. China
| | - Ling Zhu
- Save Sight Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Yue Li
- Sydney Pharmacy School, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Fanfan Zhou
- Sydney Pharmacy School, The University of Sydney, Sydney, New South Wales 2006, Australia
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17
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Kirkman DL, Robinson AT, Rossman MJ, Seals DR, Edwards DG. Mitochondrial contributions to vascular endothelial dysfunction, arterial stiffness, and cardiovascular diseases. Am J Physiol Heart Circ Physiol 2021; 320:H2080-H2100. [PMID: 33834868 PMCID: PMC8163660 DOI: 10.1152/ajpheart.00917.2020] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 03/12/2021] [Accepted: 04/05/2021] [Indexed: 12/11/2022]
Abstract
Cardiovascular disease (CVD) affects one in three adults and remains the leading cause of death in America. Advancing age is a major risk factor for CVD. Recent plateaus in CVD-related mortality rates in high-income countries after decades of decline highlight a critical need to identify novel therapeutic targets and strategies to mitigate and manage the risk of CVD development and progression. Vascular dysfunction, characterized by endothelial dysfunction and large elastic artery stiffening, is independently associated with an increased CVD risk and incidence and is therefore an attractive target for CVD prevention and management. Vascular mitochondria have emerged as an important player in maintaining vascular homeostasis. As such, age- and disease-related impairments in mitochondrial function contribute to vascular dysfunction and consequent increases in CVD risk. This review outlines the role of mitochondria in vascular function and discusses the ramifications of mitochondrial dysfunction on vascular health in the setting of age and disease. The adverse vascular consequences of increased mitochondrial-derived reactive oxygen species, impaired mitochondrial quality control, and defective mitochondrial calcium cycling are emphasized, in particular. Current evidence for both lifestyle and pharmaceutical mitochondrial-targeted strategies to improve vascular function is also presented.
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Affiliation(s)
- Danielle L Kirkman
- Department of Kinesiology and Health Sciences, Virginia Commonwealth University, Richmond, Virginia
| | | | - Matthew J Rossman
- Department of Integrative Physiology, University of Colorado, Boulder, Colorado
| | - Douglas R Seals
- Department of Integrative Physiology, University of Colorado, Boulder, Colorado
| | - David G Edwards
- Department of Kinesiology and Applied Physiology, University of Delaware, Newark, Delaware
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18
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Weerackoon N, Gunawardhana KL, Mani A. Wnt Signaling Cascades and Their Role in Coronary Artery Health and Disease. JOURNAL OF CELLULAR SIGNALING 2021; 2:52-62. [PMID: 33969358 PMCID: PMC8098721 DOI: 10.33696/signaling.2.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The Wnt signaling is classified as two distinct pathways of canonical Wnt/β-catenin signaling, and the non-canonical pathways of planar cell polarity and Wnt/Ca2+ pathways. However, the scientific discoveries in recent years have shown that canonical and non-canonical Wnts pathways are intertwined and have complex interaction with other major signaling pathways such as hedgehog, Hippo and TOR signaling. Wnt signaling plays important roles in cell proliferation, differentiation and migration during embryonic development. The impairment of these pathways during embryonic development often leads to major congenital defects. In adult organisms Wnt expression is more restricted to proliferating tissues, where it plays a key role in tissue regeneration. In addition, the disruption of homeostatic processes of multicellular organisms may give rise to reactivation and/or altered activation of Wnt signaling, leading to development of malignant tumors and chronic diseases such as type-2 diabetes and adult cardiovascular diseases. Coronary artery disease (CAD) is the leading cause of death in the world. The disease is the consequences of two distinct disease processes: Atherosclerosis, a primarily inflammatory disease and plaque erosion, a disease process associated with endothelial cell defect and smooth muscle proliferation with only modest contribution of inflammatory cells. The atherosclerosis is itself a multifactorial disease that is initiated by lipid deposition and endothelial dysfunction, triggering vascular inflammation via recruitment and aggregation of monocytes and their transformation to foam cell by the uptake of modified low-density lipoprotein (LDL), culminating in an atheromatous plaque core formation. Further accumulation of lipids, infiltration and proliferation of vascular smooth muscle cells (VSMCs) and extracellular matrix deposition result in intimal hyperplasia. Myocardial infarction is the ultimate consequence of these processes and is caused by plaque rupture and hypercoagulation. In vivo studies have established the role of the Wnt pathway in all phases of atherosclerosis development, though much remains unknown or controversial. Less is known about the mechanisms that induce plaque erosion. The limited evidence in mouse models of Wnt coreceptor LRP6 mutation and heterozygous TCF7L2 knock out mice implicate altered Wnt signaling also in the pathogenesis of plaque erosion. In this article we focus and review the role of the Wnt pathway in CAD pathophysiology from clinical and experimental standpoints.
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Affiliation(s)
- Nadisha Weerackoon
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Kushan L Gunawardhana
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA.,Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Arya Mani
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA.,Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA
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Combined transcriptomic and lipidomic analysis reveals aberrant lipid metabolism in central nervous system hemangioblastomas. Sci Rep 2021; 11:1314. [PMID: 33446752 PMCID: PMC7809491 DOI: 10.1038/s41598-020-80263-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 12/16/2020] [Indexed: 02/05/2023] Open
Abstract
Peritumoral cysts are commonly detected in the central nervous system tumors, especially hemangioblastomas (HBs). However, the molecular mechanisms driving their formation and propagation are still unknown. We conducted an integrated lipidomics and transcriptomics analysis on solid and cystic HB samples in order to elucidate the changes in the lipid profile and expression of lipid metabolism-related genes during cyst formation. Transcriptomic analysis revealed differential expression of several genes between the solid and cystic HBs, and those associated with lipid metabolism, such as ADCY4, MGLL, ACOT2, DGKG, SHC1 and LPAR2, were markedly dysregulated in the cystic HBs. The lipidomic analysis further showed a significant reduction in the abundance of triacylglycerol, ceramide, lysophosphatidylcholine and lysophosphatidylethanolamine, and an increase in phosphatidylcholine and phosphatidylethanolamine levels in the cystic HBs. Furthermore, bioinformatics analysis revealed altered lipid biosynthesis, glycerophospholipid metabolism and phospholipase activity in the cystic HBs. Taken together, our findings indicate that cyst formation in HBs is related with aberrant lipid metabolism.
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ALTamimi JZ, AlFaris NA, Al-Farga AM, Alshammari GM, BinMowyna MN, Yahya MA. Curcumin reverses diabetic nephropathy in streptozotocin-induced diabetes in rats by inhibition of PKCβ/p 66Shc axis and activation of FOXO-3a. J Nutr Biochem 2021; 87:108515. [PMID: 33017608 DOI: 10.1016/j.jnutbio.2020.108515] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/01/2020] [Accepted: 09/11/2020] [Indexed: 02/06/2023]
Abstract
This study investigated if the nephroprotective effect of Curcumin in streptozotocin-induced type 1 diabetes mellitus (DM) in rats involves downregulation/inhibition of p66Shc and examined the underlying mechanisms. Rats were divided into 4 groups (n = 12/group) as control, control + Curcumin (100 mg/kg), T1DM, and T1DM + Curcumin. Curcumin was administered orally to control or diabetic rats for 12 weeks daily. As compared to diabetic rats, Curcumin didn't affect either plasma glucose or insulin levels but significantly reduced serum levels of urea, blood urea nitrogen, and creatinine, and concurrently reduced albumin/protein urea and increased creatinine clearance. It also prevented the damage in renal tubules and mitochondria, mesangial cell expansion, the thickness of the basement membrane. Mechanistically, Curcumin reduced mRNA and protein levels of collagen I/III and transforming growth factor- β-1 (TGF-β1), reduced inflammatory cytokines levels, improved markers of mitochondrial function, and suppressed the release of cytochrome-c and the activation of caspase-3. In the kidneys of both control and diabetic rats, Curcumin reduced the levels of reactive oxygen species (ROS), increased mRNA levels of manganese superoxide dismutase (MnSOD) and gamma-glutamyl ligase, increased glutathione (GSH) and protein levels of Bcl-2 and MnSOD, and increased the nuclear levels of nuclear factor2 (Nrf2) and FOXO-3a. Besides, Curcumin reduced the nuclear activity of the nuclear factor-kappa B (NF-κB), downregulated protein kinase CβII (PKCβII), NADPH oxidase, and p66Shc, and decreased the activation of p66Shc. In conclusion, Curcumin prevents kidney damage in diabetic rats by activating Nrf2, inhibiting Nf-κB, suppressing NADPH oxidase, and downregulating/inhibiting PKCβII/p66Shc axis.
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Affiliation(s)
- Jozaa Z ALTamimi
- Nutrition and Food Science, Department of Physical Sport Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Nora A AlFaris
- Nutrition and Food Science, Department of Physical Sport Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
| | - Ammar M Al-Farga
- Biochemistry Department, College of Sciences, University of Jeddah, Jeddah, Saudi Arabia
| | - Ghedeir M Alshammari
- Department of Food Science and Nutrition, College of Food and Agricultural Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Mohammed A Yahya
- Department of Food Science and Nutrition, College of Food and Agricultural Science, King Saud University, Riyadh, Saudi Arabia
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21
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Ihenacho UK, Meacham KA, Harwig MC, Widlansky ME, Hill RB. Mitochondrial Fission Protein 1: Emerging Roles in Organellar Form and Function in Health and Disease. Front Endocrinol (Lausanne) 2021; 12:660095. [PMID: 33841340 PMCID: PMC8027123 DOI: 10.3389/fendo.2021.660095] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/05/2021] [Indexed: 12/13/2022] Open
Abstract
Mitochondrial fission protein 1 (Fis1) was identified in yeast as being essential for mitochondrial division or fission and subsequently determined to mediate human mitochondrial and peroxisomal fission. Yet, its exact functions in humans, especially in regard to mitochondrial fission, remains an enigma as genetic deletion of Fis1 elongates mitochondria in some cell types, but not others. Fis1 has also been identified as an important component of apoptotic and mitophagic pathways suggesting the protein may have multiple, essential roles. This review presents current perspectives on the emerging functions of Fis1 and their implications in human health and diseases, with an emphasis on Fis1's role in both endocrine and neurological disorders.
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Affiliation(s)
| | - Kelsey A. Meacham
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Megan Cleland Harwig
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Michael E. Widlansky
- Department of Medicine, Division of Cardiovascular Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - R. Blake Hill
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, United States
- *Correspondence: R. Blake Hill,
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Mir HA, Ali R, Mushtaq U, Khanday FA. Structure-functional implications of longevity protein p66Shc in health and disease. Ageing Res Rev 2020; 63:101139. [PMID: 32795504 DOI: 10.1016/j.arr.2020.101139] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/17/2020] [Accepted: 08/06/2020] [Indexed: 12/15/2022]
Abstract
ShcA (Src homologous- collagen homologue), family of adapter proteins, consists of three isoforms which integrate and transduce external stimuli to different signaling networks. ShcA family consists of p46Shc, p52Shc and p66Shc isoforms, characterized by having multiple protein-lipid and protein-protein interaction domains implying their functional diversity. Among the three isoforms p66Shc is structurally different containing an additional CH2 domain which attributes to its dual functionality in cell growth, mediating both cell proliferation and apoptosis. Besides, p66Shc is also involved in different biological processes including reactive oxygen species (ROS) production, cell migration, ageing, cytoskeletal reorganization and cell adhesion. Moreover, the interplay between p66Shc and ROS is implicated in the pathology of various dreadful diseases. Accordingly, here we discuss the recent structural aspects of all ShcA adaptor proteins but are highlighting the case of p66Shc as model isoform. Furthermore, this review insights the role of p66Shc in progression of chronic age-related diseases like neuro diseases, metabolic disorders (non-alcoholic fatty liver, obesity, diabetes, cardiovascular diseases, vascular endothelial dysfunction) and cancer in relation to ROS. We finally conclude that p66Shc might act as a valuable biomarker for the prognosis of these diseases and could be used as a potential therapeutic target.
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Oxidative Stress and New Pathogenetic Mechanisms in Endothelial Dysfunction: Potential Diagnostic Biomarkers and Therapeutic Targets. J Clin Med 2020; 9:jcm9061995. [PMID: 32630452 PMCID: PMC7355625 DOI: 10.3390/jcm9061995] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/15/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular diseases (CVD), including heart and pathological circulatory conditions, are the world's leading cause of mortality and morbidity. Endothelial dysfunction involved in CVD pathogenesis is a trigger, or consequence, of oxidative stress and inflammation. Endothelial dysfunction is defined as a diminished production/availability of nitric oxide, with or without an imbalance between endothelium-derived contracting, and relaxing factors associated with a pro-inflammatory and prothrombotic status. Endothelial dysfunction-induced phenotypic changes include up-regulated expression of adhesion molecules and increased chemokine secretion, leukocyte adherence, cell permeability, low-density lipoprotein oxidation, platelet activation, and vascular smooth muscle cell proliferation and migration. Inflammation-induced oxidative stress results in an increased accumulation of reactive oxygen species (ROS), mainly derived from mitochondria. Excessive ROS production causes oxidation of macromolecules inducing cell apoptosis mediated by cytochrome-c release. Oxidation of mitochondrial cardiolipin loosens cytochrome-c binding, thus, favoring its cytosolic release and activation of the apoptotic cascade. Oxidative stress increases vascular permeability, promotes leukocyte adhesion, and induces alterations in endothelial signal transduction and redox-regulated transcription factors. Identification of new endothelial dysfunction-related oxidative stress markers represents a research goal for better prevention and therapy of CVD. New-generation therapeutic approaches based on carriers, gene therapy, cardiolipin stabilizer, and enzyme inhibitors have proved useful in clinical practice to counteract endothelial dysfunction. Experimental studies are in continuous development to discover new personalized treatments. Gene regulatory mechanisms, implicated in endothelial dysfunction, represent potential new targets for developing drugs able to prevent and counteract CVD-related endothelial dysfunction. Nevertheless, many challenges remain to overcome before these technologies and personalized therapeutic strategies can be used in CVD management.
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Piao S, Nagar H, Kim S, Lee I, Choi SJ, Kim T, Jeon BH, Kim CS. CRIF1 deficiency induced mitophagy via p66shc-regulated ROS in endothelial cells. Biochem Biophys Res Commun 2020; 522:869-875. [DOI: 10.1016/j.bbrc.2019.11.109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 11/17/2019] [Indexed: 12/15/2022]
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Affiliation(s)
- Santosh Kumar
- Francois M Abboud Cardiovascular Research Center, Division of Cardiovascular Medicine, Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
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26
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Boengler K, Bornbaum J, Schlüter KD, Schulz R. P66shc and its role in ischemic cardiovascular diseases. Basic Res Cardiol 2019; 114:29. [PMID: 31165272 DOI: 10.1007/s00395-019-0738-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 05/29/2019] [Indexed: 12/16/2022]
Abstract
Oxidative stress caused by an imbalance in the formation and removal of reactive oxygen species (ROS) plays an important role in the development of several cardiovascular diseases. ROS originate from various cellular origins; however, the highest amount of ROS is produced by mitochondria. One of the proteins contributing to mitochondrial ROS formation is the adaptor protein p66shc, which upon cellular stresses translocates from the cytosol to the mitochondria. In the present review, we focus on the role of p66shc in longevity, in the development of cardiovascular diseases including diabetes, atherosclerosis and its risk factors, myocardial ischemia/reperfusion injury and the protection from it by ischemic preconditioning. Also, the contribution of p66shc towards cerebral pathologies and the potential of the protein as a therapeutic target for the treatment of the aforementioned diseases are discussed.
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Affiliation(s)
- Kerstin Boengler
- Institut für Physiologie, Justus-Liebig Universität Gießen, Aulweg 129, 35392, Giessen, Germany
| | - Julia Bornbaum
- Institut für Physiologie, Justus-Liebig Universität Gießen, Aulweg 129, 35392, Giessen, Germany
| | - Klaus-Dieter Schlüter
- Institut für Physiologie, Justus-Liebig Universität Gießen, Aulweg 129, 35392, Giessen, Germany
| | - Rainer Schulz
- Institut für Physiologie, Justus-Liebig Universität Gießen, Aulweg 129, 35392, Giessen, Germany.
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