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Li H, Gao Y, Lin Y. Progress in molecular mechanisms of coronary microvascular dysfunction. Microcirculation 2023; 30:e12827. [PMID: 37608689 DOI: 10.1111/micc.12827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/23/2023] [Accepted: 08/03/2023] [Indexed: 08/24/2023]
Abstract
Coronary microvascular dysfunction is a high-risk factor for many cardiovascular events. However, because of multiple risk factors and limited understanding about its underlying pathophysiological mechanisms, it was easily misdiagnosed. Therefore, its clinical diagnosis and treatment were greatly restricted. Coronary microcirculation refers to microvessels that play an important role in the physiological regulation of myocardial perfusion and regulating blood flow distribution, fulfilling myocardial metabolic needs and moderating peripheral vascular resistance. In coronary microvascular dysfunction, vascular endothelial celldamage is a critical link. The main feature of early coronary microvascular dysfunction is the impairment of endothelial cell proliferation, adhesion, migration, apoptosis, and secretion. Moreover, coronary microvascular dysfunction risk factors include hyperglycemia, lipid metabolism disorders, ischemia-reperfusion injury, aging, and hypertension, similar to coronary atherosclerosis. There are various mechanisms by which these risk factors harm endothelial function and cause microcirculatory disturbances. Therefore, we reviewed coronary microvascular dysfunction's risk factors and pathogenesis in this article.
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Affiliation(s)
- Hao Li
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Yuping Gao
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Yuanyuan Lin
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
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Jiang LP, Yu XH, Chen JZ, Hu M, Zhang YK, Lin HL, Tang WY, He PP, Ouyang XP. Histone Deacetylase 3: A Potential Therapeutic Target for Atherosclerosis. Aging Dis 2022; 13:773-786. [PMID: 35656103 PMCID: PMC9116907 DOI: 10.14336/ad.2021.1116] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/16/2021] [Indexed: 11/17/2022] Open
Abstract
Atherosclerosis, the pathological basis of most cardiovascular disease, is characterized by plaque formation in the intima. Secondary lesions include intraplaque hemorrhage, plaque rupture, and local thrombosis. Vascular endothelial function impairment and smooth muscle cell migration lead to vascular dysfunction, which is conducive to the formation of macrophage-derived foam cells and aggravates inflammatory response and lipid accumulation that cause atherosclerosis. Histone deacetylase (HDAC) is an epigenetic modifying enzyme closely related to chromatin structure and gene transcriptional regulation. Emerging studies have demonstrated that the Class I member HDAC3 of the HDAC super family has cell-specific functions in atherosclerosis, including 1) maintenance of endothelial integrity and functions, 2) regulation of vascular smooth muscle cell proliferation and migration, 3) modulation of macrophage phenotype, and 4) influence on foam cell formation. Although several studies have shown that HDAC3 may be a promising therapeutic target, only a few HDAC3-selective inhibitors have been thoroughly researched and reported. Here, we specifically summarize the impact of HDAC3 and its inhibitors on vascular function, inflammation, lipid accumulation, and plaque stability in the development of atherosclerosis with the hopes of opening up new opportunities for the treatment of cardiovascular diseases.
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Affiliation(s)
- Li-Ping Jiang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hunan, China.
| | - Xiao-Hua Yu
- Institute of Clinical Medicine, the Second Affiliated Hospital of Hainan Medical University, Haikou, China.
| | - Jin-Zhi Chen
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hunan, China.
| | - Mi Hu
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hunan, China.
| | - Yang-Kai Zhang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hunan, China.
| | - Hui-Ling Lin
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hunan, China.
| | - Wan-Ying Tang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hunan, China.
| | - Ping-Ping He
- School of Nursing, University of South China, Hunan, China
- Correspondence should be addressed to: Dr. Ping-Ping He, School of Nursing, University of South China, Hunan, China. and Dr. Xin-Ping Ouyang, Department of Physiology, University of South China, Hunan, China. .
| | - Xin-Ping Ouyang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hunan, China.
- Correspondence should be addressed to: Dr. Ping-Ping He, School of Nursing, University of South China, Hunan, China. and Dr. Xin-Ping Ouyang, Department of Physiology, University of South China, Hunan, China. .
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Muscle-specific programmed cell death 5 deletion attenuates cardiac aging. Int J Cardiol 2021; 345:98-104. [PMID: 34710491 DOI: 10.1016/j.ijcard.2021.10.142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/09/2021] [Accepted: 10/22/2021] [Indexed: 01/10/2023]
Abstract
Programmed cell death 5 (PDCD5) is a tumor suppressor gene that regulates the cell cycle, apoptosis and immune responses. However, the physiological function of Pdcd5 in cardiac aging remains unknown. We find that Pdcd5 mRNA and protein levels were significantly increased in the heart of mice with age. Therefore, we hypothesize that Pdcd5 regulates cardiac aging. To test the hypothesis, we generated muscle-specific Pdcd5-deficient mice. Mature adult Pdcd5-deficient mice had normal cardiac morphology and function. In naturally aged mice, Pdcd5 deficiency alleviated age-related cardiac phenotypes including reduced fibrosis and suppressed cardiomyocyte hypertrophy. Moreover, muscle-specific Pdcd5 deficiency attenuated cellular senescence in the heart as demonstrated by decreased number of senescence-associated β-galactosidase-positive cells, diminished p53, p21 and p16 expression, and reduced the senescence-associated secretory phenotype. Apoptotic cell death was reduced by Pdcd5 deficiency in the heart as revealed by terminal deoxynucleotidyl transferase dUTP nick end labeling assay, which was coincident with diminished Bcl-2-associated X protein, and enhanced B-cell lymphoma 2 and X-linked inhibitor of apoptosis protein expression. Mitochondrial quality in cardiomyocytes was improved by Pdcd5 deficiency through increased Parkin-mediated mitophagy. In addition, Pdcd5 deficiency alleviated doxorubicin-induced premature cellular senescence and cardiac aging. Furthermore, Pdcd5 protein abundance was significantly correlated with p53 protein abundance, and Pdcd5 interacted with p53 in the heart. Taken together, our results reveal that Pdcd5 deficiency attenuates cardiac aging by reducing cellular senescence and apoptosis, and increasing Parkin-mediated mitophagy, likely through p53. Pdcd5 is a novel regulator of cardiac aging and a potential therapeutic target.
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Programmed cell death 5 improves skeletal muscle insulin resistance by inhibiting IRS-1 ubiquitination through stabilization of MDM2. Life Sci 2021; 285:119918. [PMID: 34480939 DOI: 10.1016/j.lfs.2021.119918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/18/2021] [Accepted: 08/24/2021] [Indexed: 11/20/2022]
Abstract
AIMS Insulin resistance is defined as the decreased sensitivity of tissues and organs to insulin and it is the main pathological basis of metabolic syndrome. PDCD5 is widely expressed in tissues including skeletal muscle and liver, but its exact function and the role in insulin resistance has not been studied. The present study is to explore the effect of PDCD5 on insulin resistance in skeletal muscle, the largest target organ of insulin, and its mechanism. MATERIALS AND METHODS Mice were fed with high-fat diet to establish obesity model. C2C12 myoblasts differentiated into myotubes and then were treated with palmitate to induce insulin resistance. Gain-of-function and loss-of-function experiments were performed by infecting C2C12 with adenovirus containing PDCD5 cDNA or PDCD5 shRNA. KEY FINDINGS PDCD5 protein was first increased and then decreased in the skeletal muscle from high-fat diet induced obese mice and consistently in palmitate induced insulin resistance C2C12 myotubes. Overexpression of PDCD5 in C2C12 cells did not affect the sensitivity to insulin but inhibited the palmitate induced insulin resistance, while knockdown of PDCD5 aggravated the insulin resistance. Mechanistically, PDCD5 interacted with ubiquitin ligase MDM2; overexpression of PDCD5 decreased MDM2 protein level, inhibited the increased interaction of MDM2 with IRS-1 and the degradation of IRS-1 by palmitate stimulation. SIGNIFICANCE PDCD5 is upregulated during the early stage of insulin resistance in skeletal muscle. The increased PDCD5 inhibits IRS-1 ubiquitination, increases the stability of IRS-1 by interacting with and degrading MDM2, thus providing a protective effect on insulin resistance in skeletal muscle.
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Ha F, Li N, Long C, Zheng P, Hu G, Jia G, Wang T. The Effect of Global DNA Methylation on PDCD5 Expression in the PBMC of Occupational Chromate Exposed Workers. J Occup Environ Med 2021; 63:600-608. [PMID: 34184653 DOI: 10.1097/jom.0000000000002192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To evaluate the alteration of protein of programmed cell death 5 (PDCD5) in peripheral blood mononuclear cells (PBMC) and DNA methylation caused by hexavalent chromium exposure. METHODS There were 112 workers and 56 controls in this study. The chromium in RBC and urine, PBMC with PDCD5+, DNA methylation, urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) and score of DNA damage were measured. RESULTS In chromate exposed workers, the percent of PBMC with PDCD5+, urine 8-OHdG, and score of DNA damage were significantly higher, whereas global DNA methylation was significantly lower. The binary logistic regression and generalized linear mixed model analysis showed that the percent of PBMC with PDCD5+ was significantly associated with global DNA hypomethylation. CONCLUSIONS The aberrant DNA hypomethylation plays an important role in PBMC apoptosis of occupational hexavalent chromium exposure.
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Affiliation(s)
- Feizai Ha
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, China (Ms Ha, Ms Li, and Dr Wang); Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China (Dr Long, Dr Zheng, Dr Hu, and Dr Jia)
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Park SY, Hong JY, Lee SY, Lee SH, Kim MJ, Kim SY, Kim KW, Shim HS, Park MS, Lee CG, Elias JA, Sohn MH, Yoon HG. Club cell-specific role of programmed cell death 5 in pulmonary fibrosis. Nat Commun 2021; 12:2923. [PMID: 34011956 PMCID: PMC8134485 DOI: 10.1038/s41467-021-23277-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/22/2021] [Indexed: 01/19/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) causes progressive fibrosis and worsening pulmonary function. Prognosis is poor and no effective therapies exist. We show that programmed cell death 5 (PDCD5) expression is increased in the lungs of patients with IPF and in mouse models of lung fibrosis. Lung fibrosis is significantly diminished by club cell-specific deletion of Pdcd5 gene. PDCD5 mediates β-catenin/Smad3 complex formation, promoting TGF-β-induced transcriptional activation of matricellular genes. Club cell Pdcd5 knockdown reduces matricellular protein secretion, inhibiting fibroblast proliferation and collagen synthesis. Here, we demonstrate the club cell-specific role of PDCD5 as a mediator of lung fibrosis and potential therapeutic target for IPF. Idiopathic pulmonary fibrosis (IPF) is a fatal adult lung disease. Here the authors investigate the functional significance of PDCD5 in club cells as a mediator of lung fibrosis and potential therapeutic target for IPF.
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Affiliation(s)
- Soo-Yeon Park
- Department of Biochemistry and Molecular Biology, Severance Medical Research Institute, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Yeon Hong
- Department of Pediatrics and Institute of Allergy, Severance Medical Research Institute, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Yeon Lee
- Department of Biochemistry and Molecular Biology, Severance Medical Research Institute, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | - Seung-Hyun Lee
- Department of Biochemistry and Molecular Biology, Severance Medical Research Institute, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | - Mi Jeong Kim
- Department of Biochemistry and Molecular Biology, Severance Medical Research Institute, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Yeon Kim
- Department of Pediatrics and Institute of Allergy, Severance Medical Research Institute, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Won Kim
- Department of Pediatrics and Institute of Allergy, Severance Medical Research Institute, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
| | - Hyo Sup Shim
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - Moo Suk Park
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Chun Geun Lee
- Molecular Microbiology and Immunology, Brown University, Providence, RI, USA.,Department of Internal Medicine, Hanyang University, Seoul, Korea
| | - Jack A Elias
- Molecular Microbiology and Immunology, Brown University, Providence, RI, USA
| | - Myung Hyun Sohn
- Department of Pediatrics and Institute of Allergy, Severance Medical Research Institute, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea.
| | - Ho-Geun Yoon
- Department of Biochemistry and Molecular Biology, Severance Medical Research Institute, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea.
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Deng J. Research progress on the molecular mechanism of coronary microvascular endothelial cell dysfunction. IJC HEART & VASCULATURE 2021; 34:100777. [PMID: 33912653 PMCID: PMC8065195 DOI: 10.1016/j.ijcha.2021.100777] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/27/2021] [Accepted: 03/30/2021] [Indexed: 12/19/2022]
Abstract
Coronary microvascular disease is a high-risk factor for many cardiovascular events. However, due to its high concealment and many etiologies, the current understanding of its pathophysiological mechanism is very limited, which greatly limits its clinical diagnosis and treatment. In the process of the occurrence and development of coronary microvascular disease, the damage of coronary microvascular endothelial cell (CMEC) is the core link. CMEC's stress, metabolism, inflammation and other dysfunctions have a causal relationship with coronary microvascular disease, and are also the main features of coronary microvascular disease in the early stage. This article mainly reviews the molecular mechanisms of CMEC damage.
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Affiliation(s)
- Jianying Deng
- Department of Cardiovascular Surgery, Chongqing Kanghua Zhonglian Cardiovascular Hospital, Chong Qing, China
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Zhou ZX, Ren Z, Yan BJ, Qu SL, Tang ZH, Wei DH, Liu LS, Fu MG, Jiang ZS. The Role of Ubiquitin E3 Ligase in Atherosclerosis. Curr Med Chem 2021; 28:152-168. [PMID: 32141415 DOI: 10.2174/0929867327666200306124418] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 02/18/2020] [Accepted: 02/20/2020] [Indexed: 11/22/2022]
Abstract
Atherosclerosis is a chronic inflammatory vascular disease. Atherosclerotic cardiovascular disease is the main cause of death in both developed and developing countries. Many pathophysiological factors, including abnormal cholesterol metabolism, vascular inflammatory response, endothelial dysfunction and vascular smooth muscle cell proliferation and apoptosis, contribute to the development of atherosclerosis and the molecular mechanisms underlying the development of atherosclerosis are not fully understood. Ubiquitination is a multistep post-translational protein modification that participates in many important cellular processes. Emerging evidence suggests that ubiquitination plays important roles in the pathogenesis of atherosclerosis in many ways, including regulation of vascular inflammation, endothelial cell and vascular smooth muscle cell function, lipid metabolism and atherosclerotic plaque stability. This review summarizes important contributions of various E3 ligases to the development of atherosclerosis. Targeting ubiquitin E3 ligases may provide a novel strategy for the prevention of the progression of atherosclerosis.
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Affiliation(s)
- Zhi-Xiang Zhou
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical College, University of South China, Hengyang City, Hunan Province 421001, China
| | - Zhong Ren
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical College, University of South China, Hengyang City, Hunan Province 421001, China
| | - Bin-Jie Yan
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical College, University of South China, Hengyang City, Hunan Province 421001, China
| | - Shun-Lin Qu
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical College, University of South China, Hengyang City, Hunan Province 421001, China
| | - Zhi-Han Tang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical College, University of South China, Hengyang City, Hunan Province 421001, China
| | - Dang-Heng Wei
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical College, University of South China, Hengyang City, Hunan Province 421001, China
| | - Lu-Shan Liu
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical College, University of South China, Hengyang City, Hunan Province 421001, China
| | - Min-Gui Fu
- Department of Basic Medical Science, School of Medicine, University of Missouri Kansas City, Kansas City, MO 64108, United States
| | - Zhi-Sheng Jiang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical College, University of South China, Hengyang City, Hunan Province 421001, China
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Guan X, Lu J, Sun F, Li Q, Pang Y. The Molecular Evolution and Functional Divergence of Lamprey Programmed Cell Death Genes. Front Immunol 2019; 10:1382. [PMID: 31281315 PMCID: PMC6596451 DOI: 10.3389/fimmu.2019.01382] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 05/31/2019] [Indexed: 12/23/2022] Open
Abstract
The programmed cell death (PDCD) family plays a significant role in the regulation of cell survival and apoptotic cell death. However, the evolution, distribution and role of the PDCD family in lampreys have not been revealed. Thus, we identified the PDCD gene family in the lamprey genome and classified the genes into five subfamilies based on orthologs of the genes, conserved synteny, functional domains, phylogenetic tree, and conserved motifs. The distribution of the lamprey PDCD family and the immune response of the PDCD family in lampreys stimulated by different pathogens were also demonstrated. In addition, we investigated the molecular function of lamprey PDCD2, PDCD5, and PDCD10. Our studies showed that the recombinant lamprey PDCD5 protein and transfection of the L-PDCD5 gene induced cell apoptosis, upregulated the expression of the associated X protein (BAX) and TP53 and downregulated the expression of B cell lymphoma 2 (BCL-2) independent of Caspase 3. In contrast, lamprey PDCD10 suppressed apoptosis in response to cis-diaminedichloro-platinum (II) stimuli. Our phylogenetic and functional data not only provide a better understanding of the evolution of lamprey PDCD genes but also reveal the conservation of PDCD genes in apoptosis. Overall, our results provide a novel perspective on lamprey immune regulation mediated by the PDCD family.
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Affiliation(s)
- Xin Guan
- Lamprey Research Center, Liaoning Normal University, Dalian, China
| | - Jiali Lu
- Lamprey Research Center, Liaoning Normal University, Dalian, China
| | - Feng Sun
- Lamprey Research Center, Liaoning Normal University, Dalian, China
| | - Qingwei Li
- Lamprey Research Center, Liaoning Normal University, Dalian, China
| | - Yue Pang
- Lamprey Research Center, Liaoning Normal University, Dalian, China
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Roberts DS, Chen B, Tiambeng TN, Wu Z, Ge Y, Jin S. Reproducible Large-Scale Synthesis of Surface Silanized Nanoparticles as an Enabling Nanoproteomics Platform: Enrichment of the Human Heart Phosphoproteome. NANO RESEARCH 2019; 12:1473-1481. [PMID: 31341559 PMCID: PMC6656398 DOI: 10.1007/s12274-019-2418-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A reproducible synthetic strategy was developed for facile large-scale (200 mg) synthesis of surface silanized magnetite (Fe3O4) nanoparticles (NPs) for biological applications. After further coupling a phosphate-specific affinity ligand, these functionalized magnetic NPs were used for the highly specific enrichment of phosphoproteins from a complex biological mixture. Moreover, correlating the surface silane density of the silanized magnetite NPs to their resultant enrichment performance established a simple and reliable quality assurance control to ensure reproducible synthesis of these NPs routinely in large scale and optimal phosphoprotein enrichment performance from batch-to-batch. Furthermore, by successful exploitation of a top-down phosphoproteomics strategy that integrates this high throughput nanoproteomics platform with online liquid chromatography (LC) and tandem mass spectrometry (MS/MS), we were able to specifically enrich, identify, and characterize endogenous phosphoproteins from highly complex human cardiac tissue homogenate. This nanoproteomics platform possesses a unique combination of scalability, specificity, reproducibility, and efficiency for the capture and enrichment of low abundance proteins in general, thereby enabling downstream proteomics applications.
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Affiliation(s)
- David S. Roberts
- Department of Chemistry, University of Wisconsin-Madison, Wisconsin 53706, USA
| | - Bifan Chen
- Department of Chemistry, University of Wisconsin-Madison, Wisconsin 53706, USA
| | - Timothy N. Tiambeng
- Department of Chemistry, University of Wisconsin-Madison, Wisconsin 53706, USA
| | - Zhijie Wu
- Department of Chemistry, University of Wisconsin-Madison, Wisconsin 53706, USA
| | - Ying Ge
- Department of Chemistry, University of Wisconsin-Madison, Wisconsin 53706, USA
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705, USA
| | - Song Jin
- Department of Chemistry, University of Wisconsin-Madison, Wisconsin 53706, USA
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Ye J, Zheng Q, Jia S, Qiao X, Cao Y, Xu C, Weng L, Zhao L, Chen Y, Liu J, Wang T, Cheng H, Zheng M. Programmed Cell Death 5 Provides Negative Feedback on Cardiac Hypertrophy Through the Stabilization of Sarco/Endoplasmic Reticulum Ca 2+-ATPase 2a Protein. Hypertension 2019; 72:889-901. [PMID: 30354711 DOI: 10.1161/hypertensionaha.118.11357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
PDCD5 (programmed cell death 5) is ubiquitously expressed in tissues, including the heart; however, the mechanism underlying the cardiac function of PDCD5 has not been understood. We investigated the mechanisms of PDCD5 in the pathogenesis of cardiac hypertrophy. Cardiac-specific PDCD5 knockout mice developed severe cardiac hypertrophy and impaired cardiac function, whereas PDCD5 protein was significantly increased in transverse aortic constriction mouse hearts and phenylephrine-stimulated cardiomyocytes. Overexpression of PDCD5 inhibited phenylephrine-induced cardiomyocyte hypertrophy, and knockdown of PDCD5 induced cardiomyocyte hypertrophy and aggravated phenylephrine-induced hypertrophy. The expression of PDCD5 protein was regulated by NFATc2 (nuclear factor of activated T cells c2) during hypertrophy. SERCA2a (sarco/endoplasmic reticulum Ca2+-ATPase 2a) expression was decreased in PDCD5-deficient mouse hearts because of increased ubiquitination. PDCD5-deficient cardiomyocytes displayed decreased calcium uptake rate, slowed decay of Ca2+ transients, decreased calcium stores, and diastolic dysfunction. Moreover, reintroduction of PDCD5 in PDCD5-deficient mouse hearts reserved SERCA2a protein, suppressed NFATc2 protein, and rescued the hypertrophy and cardiac dysfunction. Our results revealed that PDCD5 is a novel target of NFATc2 in the hypertrophic heart and provides negative feedback to protect the heart against excessive hypertrophy via the stabilization of SERCA2a protein.
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Affiliation(s)
- Jingjing Ye
- From the Department of Physiology and Pathophysiology, School of Basic Medical Sciences (J.Y., S.J., X.Q., Y.C., C.X., L.W., L.Z., M.Z.), Peking University Health Science Center, Beijing, China
| | - Qiaoxia Zheng
- Institute of Molecular Medicine, Peking University, Beijing, P.R. China (Q.Z., H.C.)
| | - Shi Jia
- From the Department of Physiology and Pathophysiology, School of Basic Medical Sciences (J.Y., S.J., X.Q., Y.C., C.X., L.W., L.Z., M.Z.), Peking University Health Science Center, Beijing, China
| | - Xue Qiao
- From the Department of Physiology and Pathophysiology, School of Basic Medical Sciences (J.Y., S.J., X.Q., Y.C., C.X., L.W., L.Z., M.Z.), Peking University Health Science Center, Beijing, China
| | - Yangpo Cao
- From the Department of Physiology and Pathophysiology, School of Basic Medical Sciences (J.Y., S.J., X.Q., Y.C., C.X., L.W., L.Z., M.Z.), Peking University Health Science Center, Beijing, China
| | - Chunling Xu
- From the Department of Physiology and Pathophysiology, School of Basic Medical Sciences (J.Y., S.J., X.Q., Y.C., C.X., L.W., L.Z., M.Z.), Peking University Health Science Center, Beijing, China
| | - Lin Weng
- From the Department of Physiology and Pathophysiology, School of Basic Medical Sciences (J.Y., S.J., X.Q., Y.C., C.X., L.W., L.Z., M.Z.), Peking University Health Science Center, Beijing, China
| | - Lifang Zhao
- From the Department of Physiology and Pathophysiology, School of Basic Medical Sciences (J.Y., S.J., X.Q., Y.C., C.X., L.W., L.Z., M.Z.), Peking University Health Science Center, Beijing, China
| | - Yingyu Chen
- Key Laboratory of Medical Immunology, Ministry of Health (Y.C.), Peking University Health Science Center, Beijing, China
| | - Jian Liu
- Departments of Cardiology (J.L.), Peking University People's Hospital, Beijing, China
| | - Tianbing Wang
- Trauma and Orthopedics (T.W.), Peking University People's Hospital, Beijing, China
| | - Heping Cheng
- Institute of Molecular Medicine, Peking University, Beijing, P.R. China (Q.Z., H.C.)
| | - Ming Zheng
- From the Department of Physiology and Pathophysiology, School of Basic Medical Sciences (J.Y., S.J., X.Q., Y.C., C.X., L.W., L.Z., M.Z.), Peking University Health Science Center, Beijing, China
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The Role of Ceramide and Sphingosine-1-Phosphate in Alzheimer's Disease and Other Neurodegenerative Disorders. Mol Neurobiol 2019; 56:5436-5455. [PMID: 30612333 PMCID: PMC6614129 DOI: 10.1007/s12035-018-1448-3] [Citation(s) in RCA: 164] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 12/06/2018] [Indexed: 12/11/2022]
Abstract
Bioactive sphingolipids-ceramide, sphingosine, and their respective 1-phosphates (C1P and S1P)-are signaling molecules serving as intracellular second messengers. Moreover, S1P acts through G protein-coupled receptors in the plasma membrane. Accumulating evidence points to sphingolipids' engagement in brain aging and in neurodegenerative disorders such as Alzheimer's, Parkinson's, and Huntington's diseases and amyotrophic lateral sclerosis. Metabolic alterations observed in the course of neurodegeneration favor ceramide-dependent pro-apoptotic signaling, while the levels of the neuroprotective S1P are reduced. These trends are observed early in the diseases' development, suggesting causal relationship. Mechanistic evidence has shown links between altered ceramide/S1P rheostat and the production, secretion, and aggregation of amyloid β/α-synuclein as well as signaling pathways of critical importance for the pathomechanism of protein conformation diseases. Sphingolipids influence multiple aspects of Akt/protein kinase B signaling, a pathway that regulates metabolism, stress response, and Bcl-2 family proteins. The cross-talk between sphingolipids and transcription factors including NF-κB, FOXOs, and AP-1 may be also important for immune regulation and cell survival/death. Sphingolipids regulate exosomes and other secretion mechanisms that can contribute to either the spread of neurotoxic proteins between brain cells, or their clearance. Recent discoveries also suggest the importance of intracellular and exosomal pools of small regulatory RNAs in the creation of disturbed signaling environment in the diseased brain. The identified interactions of bioactive sphingolipids urge for their evaluation as potential therapeutic targets. Moreover, the early disturbances in sphingolipid metabolism may deliver easily accessible biomarkers of neurodegenerative disorders.
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