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Sun X, Lee HC, Lu T. Sorbs2 Deficiency and Vascular BK Channelopathy in Diabetes. Circ Res 2024; 134:858-871. [PMID: 38362769 PMCID: PMC10978258 DOI: 10.1161/circresaha.123.323538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 02/02/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Vascular large conductance Ca2+-activated K+ (BK) channel, composed of the α-subunit (BK-α) and the β1-subunit (BK-β1), is a key determinant of coronary vasorelaxation and its function is impaired in diabetic vessels. However, our knowledge of diabetic BK channel dysregulation is incomplete. The Sorbs2 (Sorbin homology [SoHo] and Src homology 3 [SH3] domains-containing protein 2), is ubiquitously expressed in arteries, but its role in vascular pathophysiology is unknown. METHODS The role of Sorbs2 in regulating vascular BK channel activity was determined using patch-clamp recordings, molecular biological techniques, and in silico analysis. RESULTS Sorbs2 is not only a cytoskeletal protein but also an RNA-binding protein that binds to BK channel proteins and BK-α mRNA, regulating BK channel expression and function in coronary smooth muscle cells. Molecular biological studies reveal that the SH3 domain of Sorbs2 is necessary for Sorbs2 interaction with BK-α subunits, while both the SH3 and SoHo domains of Sorbs2 interact with BK-β1 subunits. Deletion of the SH3 or SoHo domains abolishes the Sorbs2 effect on the BK-α/BK-β1 channel current density. Additionally, Sorbs2 is a target gene of the Nrf2 (nuclear factor erythroid-2-related factor 2), which binds to the promoter of Sorbs2 and regulates Sorbs2 expression in coronary smooth muscle cells. In vivo studies demonstrate that Sorbs2 knockout mice at 4 months of age display a significant decrease in BK channel expression and function, accompanied by impaired BK channel Ca2+-sensitivity and BK channel-mediated vasodilation in coronary arteries, without altering their body weights and blood glucose levels. Importantly, Sorbs2 expression is significantly downregulated in the coronary arteries of db/db type 2 diabetic mice. CONCLUSIONS Sorbs2, a downstream target of Nrf2, plays an important role in regulating BK channel expression and function in vascular smooth muscle cells. Vascular Sorbs2 is downregulated in diabetes. Genetic knockout of Sorbs2 manifests coronary BK channelopathy and vasculopathy observed in diabetic mice, independent of obesity and glucotoxicity.
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Affiliation(s)
- Xiaojing Sun
- The Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Hon-Chi Lee
- The Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Tong Lu
- The Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
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2
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Yu M, Nie Y, Yang J, Yang S, Li R, Rao V, Hu X, Fang C, Li S, Song D, Guo F, Snyder MP, Chang HY, Kuo CJ, Xu J, Chang J. Integrative multi-omic profiling of adult mouse brain endothelial cells and potential implications in Alzheimer's disease. Cell Rep 2023; 42:113392. [PMID: 37925638 PMCID: PMC10843806 DOI: 10.1016/j.celrep.2023.113392] [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: 04/15/2023] [Revised: 09/11/2023] [Accepted: 10/22/2023] [Indexed: 11/07/2023] Open
Abstract
The blood-brain barrier (BBB) is primarily manifested by a variety of physiological properties of brain endothelial cells (ECs), but the molecular foundation for these properties remains incompletely clear. Here, we generate a comprehensive molecular atlas of adult brain ECs using acutely purified mouse ECs and integrated multi-omics. Using RNA sequencing (RNA-seq) and proteomics, we identify the transcripts and proteins selectively enriched in brain ECs and demonstrate that they are partially correlated. Using single-cell RNA-seq, we dissect the molecular basis of functional heterogeneity of brain ECs. Using integrative epigenomics and transcriptomics, we determine that TCF/LEF, SOX, and ETS families are top-ranked transcription factors regulating the BBB. We then validate the identified brain-EC-enriched proteins and transcription factors in normal mouse and human brain tissue and assess their expression changes in mice with Alzheimer's disease. Overall, we present a valuable resource with broad implications for regulation of the BBB and treatment of neurological disorders.
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Affiliation(s)
- Min Yu
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yage Nie
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Jiawen Yang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Shilun Yang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Rui Li
- Center for Personal Dynamic Regulomes, Stanford University, Stanford, CA, USA; Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Varsha Rao
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Xiaoyan Hu
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Cheng Fang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Simeng Li
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Dengpan Song
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Fuyou Guo
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Michael P Snyder
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Howard Y Chang
- Center for Personal Dynamic Regulomes, Stanford University, Stanford, CA, USA; Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA; Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA
| | - Calvin J Kuo
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.
| | - Jin Xu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, China.
| | - Junlei Chang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
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3
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Dan Y, Radic N, Gay M, Fernández-Torras A, Arauz G, Vilaseca M, Aloy P, Canovas B, Nebreda A. Characterization of p38α signaling networks in cancer cells using quantitative proteomics and phosphoproteomics. Mol Cell Proteomics 2023; 22:100527. [PMID: 36894123 PMCID: PMC10105487 DOI: 10.1016/j.mcpro.2023.100527] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023] Open
Abstract
p38α (encoded by MAPK14) is a protein kinase that regulates cellular responses to almost all types of environmental and intracellular stresses. Upon activation, p38α phosphorylates many substrates both in the cytoplasm and nucleus, allowing this pathway to regulate a wide variety of cellular processes. While the role of p38α in the stress response has been widely investigated, its implication in cell homeostasis is less understood. To investigate the signaling networks regulated by p38α in proliferating cancer cells, we performed quantitative proteomic and phosphoproteomic analyses in breast cancer cells in which this pathway had been either genetically targeted or chemically inhibited. Our study identified with high confidence 35 proteins and 82 phosphoproteins (114 phosphosites) that are modulated by p38α, and highlighted the implication of various protein kinases, including MK2 and mTOR, in the p38α-regulated signaling networks. Moreover, functional analyses revealed an important contribution of p38α to the regulation of cell adhesion, DNA replication and RNA metabolism. Indeed, we provide experimental evidence supporting that p38α facilitates cancer cell adhesion, and showed that this p38α function is likely mediated by the modulation of the adaptor protein ArgBP2. Collectively, our results illustrate the complexity of the p38α regulated signaling networks, provide valuable information on p38α-dependent phosphorylation events in cancer cells, and document a mechanism by which p38α can regulate cell adhesion.
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Affiliation(s)
- Yuzhen Dan
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
| | - Nevenka Radic
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
| | - Marina Gay
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
| | - Adrià Fernández-Torras
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
| | - Gianluca Arauz
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
| | - Marta Vilaseca
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
| | - Patrick Aloy
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain; ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Begoña Canovas
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
| | - AngelR Nebreda
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain; ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain.
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4
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McLendon JM, Zhang X, Matasic DS, Kumar M, Koval OM, Grumbach IM, Sadayappan S, London B, Boudreau RL. Knockout of Sorbin And SH3 Domain Containing 2 (Sorbs2) in Cardiomyocytes Leads to Dilated Cardiomyopathy in Mice. J Am Heart Assoc 2022; 11:e025687. [PMID: 35730644 PMCID: PMC9333371 DOI: 10.1161/jaha.122.025687] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background Sorbin and SH3 domain containing 2 (Sorbs2) protein is a cytoskeletal adaptor with an emerging role in cardiac biology and disease; yet, its potential relevance to adult‐onset cardiomyopathies remains underexplored. Sorbs2 global knockout mice display lethal arrhythmogenic cardiomyopathy; however, the causative mechanisms remain unclear. Herein, we examine Sorbs2 dysregulation in heart failure, characterize novel Sorbs2 cardiomyocyte‐specific knockout mice (Sorbs2‐cKO), and explore associations between Sorbs2 genetic variations and human cardiovascular disease. Methods and Results Bioinformatic analyses show myocardial Sorbs2 mRNA is consistently upregulated in humans with adult‐onset cardiomyopathies and in heart failure models. We generated Sorbs2‐cKO mice and report that they develop progressive systolic dysfunction and enlarged cardiac chambers, and they die with congestive heart failure at about 1 year old. After 3 months, Sorbs2‐cKO mice begin to show atrial enlargement and P‐wave anomalies, without dysregulation of action potential–associated ion channel and gap junction protein expressions. After 6 months, Sorbs2‐cKO mice exhibit impaired contractility in dobutamine‐treated hearts and skinned myofibers, without dysregulation of contractile protein expressions. From our comprehensive survey of potential mechanisms, we found that within 4 months, Sorbs2‐cKO hearts have defective microtubule polymerization and compensatory upregulation of structural cytoskeletal and adapter proteins, suggesting that this early intracellular structural remodeling is responsible for contractile dysfunction. Finally, we identified genetic variants that associate with decreased Sorbs2 expression and human cardiac phenotypes, including conduction abnormalities, atrial enlargement, and dilated cardiomyopathy, consistent with Sorbs2‐cKO mice phenotypes. Conclusions Our studies show that Sorbs2 is essential for maintaining structural integrity in cardiomyocytes, likely through strengthening the interactions between microtubules and other cytoskeletal proteins at cross‐link sites.
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Affiliation(s)
- Jared M McLendon
- Department of Internal Medicine University of Iowa Carver College of Medicine Iowa City IA.,Abboud Cardiovascular Research Center University of Iowa Carver College of Medicine Iowa City IA
| | - Xiaoming Zhang
- Department of Internal Medicine University of Iowa Carver College of Medicine Iowa City IA.,Abboud Cardiovascular Research Center University of Iowa Carver College of Medicine Iowa City IA
| | - Daniel S Matasic
- Department of Internal Medicine University of Iowa Carver College of Medicine Iowa City IA.,Department of Molecular Physiology and Biophysics University of Iowa Carver College of Medicine Iowa City IA
| | - Mohit Kumar
- Department of Pharmacology and Systems Physiology University of Cincinnati OH.,Division of Cardiovascular Health and Disease Department of Internal Medicine Heart, Lung, and Vascular Institute University of Cincinnati OH
| | - Olha M Koval
- Department of Internal Medicine University of Iowa Carver College of Medicine Iowa City IA.,Abboud Cardiovascular Research Center University of Iowa Carver College of Medicine Iowa City IA
| | - Isabella M Grumbach
- Department of Internal Medicine University of Iowa Carver College of Medicine Iowa City IA.,Abboud Cardiovascular Research Center University of Iowa Carver College of Medicine Iowa City IA
| | - Sakthivel Sadayappan
- Department of Pharmacology and Systems Physiology University of Cincinnati OH.,Division of Cardiovascular Health and Disease Department of Internal Medicine Heart, Lung, and Vascular Institute University of Cincinnati OH
| | - Barry London
- Department of Internal Medicine University of Iowa Carver College of Medicine Iowa City IA.,Abboud Cardiovascular Research Center University of Iowa Carver College of Medicine Iowa City IA
| | - Ryan L Boudreau
- Department of Internal Medicine University of Iowa Carver College of Medicine Iowa City IA.,Abboud Cardiovascular Research Center University of Iowa Carver College of Medicine Iowa City IA
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Morris T, Sue E, Geniesse C, Brieher WM, Tang VW. Synaptopodin stress fiber and contractomere at the epithelial junction. J Cell Biol 2022; 221:e202011162. [PMID: 35416930 PMCID: PMC9011326 DOI: 10.1083/jcb.202011162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 10/07/2021] [Accepted: 02/09/2022] [Indexed: 12/27/2022] Open
Abstract
The apical junction of epithelial cells can generate force to control cell geometry and perform contractile processes while maintaining barrier function and adhesion. Yet, the structural basis for force generation at the apical junction is not fully understood. Here, we describe two synaptopodin-dependent actomyosin structures that are spatially, temporally, and structurally distinct. The first structure is formed by the retrograde flow of synaptopodin initiated at the apical junction, creating a sarcomeric stress fiber that lies parallel to the apical junction. Contraction of the apical stress fiber is associated with either clustering of membrane components or shortening of junctional length. Upon junction maturation, apical stress fibers are disassembled. In mature epithelial monolayer, a motorized "contractomere" capable of "walking the junction" is formed at the junctional vertex. Actomyosin activities at the contractomere produce a compressive force evident by actin filament buckling and measurement with a new α-actinin-4 force sensor. The motility of contractomeres can adjust junctional length and change cell packing geometry during cell extrusion and intercellular movement. We propose a model of epithelial homeostasis that utilizes contractomere motility to support junction rearrangement while preserving the permeability barrier.
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Affiliation(s)
- Timothy Morris
- Department of Cell and Developmental Biology, University of Illinois, Urbana-Champaign, IL
| | - Eva Sue
- Department of Cell and Developmental Biology, University of Illinois, Urbana-Champaign, IL
| | - Caleb Geniesse
- Department of Cell and Developmental Biology, University of Illinois, Urbana-Champaign, IL
| | - William M. Brieher
- Department of Cell and Developmental Biology, University of Illinois, Urbana-Champaign, IL
| | - Vivian W. Tang
- Department of Cell and Developmental Biology, University of Illinois, Urbana-Champaign, IL
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6
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Chen J, Chen Y, Du X, Liu G, Fei X, Peng JR, Zhang X, Xiao F, Wang X, Yang X, Feng Z. Integrative Studies of Human Cord Blood Derived Mononuclear Cells and Umbilical Cord Derived Mesenchyme Stem Cells in Ameliorating Bronchopulmonary Dysplasia. Front Cell Dev Biol 2021; 9:679866. [PMID: 34858969 PMCID: PMC8631197 DOI: 10.3389/fcell.2021.679866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 08/30/2021] [Indexed: 11/13/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a common pulmonary complication observed in preterm infants that is composed of multifactorial pathogenesis. Current strategies, albeit successful in moderately reducing morbidity and mortality of BPD, failed to draw overall satisfactory conclusion. Here, using a typical mouse model mimicking hallmarks of BPD, we revealed that both cord blood-derived mononuclear cells (CB-MNCs) and umbilical cord-derived mesenchymal stem cells (UC-MSCs) are efficient in alleviating BPD. Notably, infusion of CB-MNCs has more prominent effects in preventing alveolar simplification and pulmonary vessel loss, restoring pulmonary respiratory functions and balancing inflammatory responses. To further elucidate the underlying mechanisms within the divergent therapeutic effects of UC-MSC and CB-MNC, we systematically investigated the long noncoding RNA (lncRNA)-microRNA (miRNA)-messenger RNA (mRNA) and circular RNA (circRNA)-miRNA-mRNA networks by whole-transcriptome sequencing. Importantly, pathway analysis integrating Gene Ontology (GO)/Kyoto Encyclopedia of Genes and Genomes (KEGG)/gene set enrichment analysis (GSEA) method indicates that the competing endogenous RNA (ceRNA) network is mainly related to the regulation of GTPase activity (GO: 0043087), extracellular signal-regulated kinase 1 (ERK1) and ERK2 signal cascade (GO: 0070371), chromosome regulation (GO: 0007059), and cell cycle control (GO: 0044770). Through rigorous selection of the lncRNA/circRNA-based ceRNA network, we demonstrated that the hub genes reside in UC-MSC- and CB-MNC-infused networks directed to the function of cell adhesion, motor transportation (Cdk13, Lrrn2), immune homeostasis balance, and autophagy (Homer3, Prkcd) relatively. Our studies illustrate the first comprehensive mRNA-miRNA-lncRNA and mRNA-miRNA-circRNA networks in stem cell-infused BPD model, which will be valuable in identifying reliable biomarkers or therapeutic targets for BPD pathogenesis and shed new light in the priming and conditioning of UC-MSCs or CB-MNCs in the treatment of neonatal lung injury.
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Affiliation(s)
- Jia Chen
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Department of Neonatology, Senior Department of Pediatrics, The Seventh Medical Center of PLA General Hospital, Beijing, China.,National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China.,Beijing Key Laboratory of Pediatric Organ Failure, Beijing, China
| | - Yuhan Chen
- Department of Neonatology, Senior Department of Pediatrics, The Seventh Medical Center of PLA General Hospital, Beijing, China.,National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China.,Beijing Key Laboratory of Pediatric Organ Failure, Beijing, China
| | - Xue Du
- Department of Neonatology, Senior Department of Pediatrics, The Seventh Medical Center of PLA General Hospital, Beijing, China.,National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China.,Beijing Key Laboratory of Pediatric Organ Failure, Beijing, China.,The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Guojun Liu
- Shandong Qilu Stem Cell Engineering Co., Ltd., Jinan, China
| | - Xiaowei Fei
- The First Affiliated Hospital of Dalian Medical University, Dalian, China.,Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi'an, China
| | - Jian Ru Peng
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Department of Neonatology, Senior Department of Pediatrics, The Seventh Medical Center of PLA General Hospital, Beijing, China.,National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China.,Beijing Key Laboratory of Pediatric Organ Failure, Beijing, China
| | - Xing Zhang
- Department of Neonatology, Senior Department of Pediatrics, The Seventh Medical Center of PLA General Hospital, Beijing, China.,National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China.,Beijing Key Laboratory of Pediatric Organ Failure, Beijing, China
| | - Fengjun Xiao
- Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing, China
| | - Xue Wang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiao Yang
- Department of Neonatology, Senior Department of Pediatrics, The Seventh Medical Center of PLA General Hospital, Beijing, China.,National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China.,Beijing Key Laboratory of Pediatric Organ Failure, Beijing, China
| | - Zhichun Feng
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Department of Neonatology, Senior Department of Pediatrics, The Seventh Medical Center of PLA General Hospital, Beijing, China.,National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China.,Beijing Key Laboratory of Pediatric Organ Failure, Beijing, China.,The First Affiliated Hospital of Dalian Medical University, Dalian, China
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7
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Chen Q, Xu J, Zhu M. miR-18a-5p Facilitates Malignant Progression of Head and Neck Squamous Cell Carcinoma Cells via Modulating SORBS2. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:5953881. [PMID: 34707683 PMCID: PMC8545503 DOI: 10.1155/2021/5953881] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 09/18/2021] [Indexed: 12/15/2022]
Abstract
This study attempted to investigate possible molecular mechanism and role of miR-18a-5p in head and neck squamous cell carcinoma (HNSCC). Differential miRNAs and their possible targets were analyzed through TCGA database. By conducting qRT-PCR, miR-18a-5p was tested to be increased and SORBS2 was assessed to be downregulated in HNSCC cells. CCK-8, Transwell, and flow cytometry assays disclosed that miR-18a-5p facilitated HNSCC cell proliferation, migration, and invasion and repressed cell apoptosis. By dual-luciferase reporter gene assay, it was verified that miR-18a-5p had binding sites into SORBS2. Rescue experiments displayed that forced expression of SORBS2 restored the impact of miR-18a-5p overexpression on HNSCC cells. Collectively, our research preliminarily identified the promotion effect of miR-18a-5p/SORBS2 axis on malignant phenotypes of HNSCC cells. Our findings may provide a preclinical reference for HNSCC treatment.
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Affiliation(s)
- Qian Chen
- Department of Oncology, The Second People's Hospital of Lianyungang (The Oncology Hospital of Lianyungang), Lianyungang City, Jiangsu Province 222000, China
| | - Jing Xu
- Department of Oncology, The Second People's Hospital of Lianyungang (The Oncology Hospital of Lianyungang), Lianyungang City, Jiangsu Province 222000, China
| | - Mingzhen Zhu
- Department of Oncology, The Second People's Hospital of Lianyungang (The Oncology Hospital of Lianyungang), Lianyungang City, Jiangsu Province 222000, China
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Ghafarpour V, Khansari M, Banaei-Moghaddam AM, Najafi A, Masoudi-Nejad A. DNA methylation association with stage progression of head and neck squamous cell carcinoma. Comput Biol Med 2021; 134:104473. [PMID: 34034219 DOI: 10.1016/j.compbiomed.2021.104473] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 01/13/2023]
Abstract
Head and Neck Squamous Cell Carcinoma (HNSCC) is the sixth most common cancer worldwide, which accounts for approximately 6% of all cases and is responsible for an estimated 2% of all cancer deaths. Despite progress in the treatment of squamous cell carcinomas, survival rates remain low. It is a fact that epigenetic modifications have numerous associations with biological processes and complex diseases such as cancer. Hence, a more systematic approach is needed to provide potential screening targets and have an effective therapy method. This study developed a workflow to analyze HM450 methylation arrays with mRNA expression profiles that identified novel signatures of epigenetic regulators for tumor progression. We identified differentially expressed genes and differentially methylated regions and the correlation between associated genes to identify epigenetic modifications underlying regulation roles. We have taken the differentiation direction of expressions into account during the integration of gene expression and DNA methylation modification to detect epigenetic regulators of core genes of tumor-stage progression. Enrichment analysis of selected key genes provides better insight into their functionality. Thus, we have investigated gene copy number alteration and mutations to filter differentially expressed genes, including some members of the fibroblast growth factor family and cyclin-dependent kinase inhibitor family with other potential known regulators. Our analysis has revealed the list of 61 commercial methylation probes positively correlated with 31 differentially expressed genes, which can be associated with HNSC metastasis stages. Most of these genes have already reported potential epigenetic regulators, and their role in cancer progression was studied. We suggest these selected probes of DNA methylation as potential targets of the epigenetic regulators in revealed genes that have displayed significant genetic and epigenetic modification behavior during cancer stage progression and tumor metastasis.
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Affiliation(s)
- Vahid Ghafarpour
- Laboratory of Systems Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Mohammad Khansari
- Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Ali M Banaei-Moghaddam
- Laboratory of Genomics and Epigenomics (LGE), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Ali Najafi
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Tehran, Iran
| | - Ali Masoudi-Nejad
- Laboratory of Systems Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran. http://lbb.ut.ac.ir/
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9
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Cho WK, Kim HI, Paek SH, Kim SY, Hyun Seo H, Song J, Lee OH, Min J, Lee SJ, Jo Y, Choi H, Lee JH, Moh SH. Gene expression profile of human follicle dermal papilla cells in response to Camellia japonica phytoplacenta extract. FEBS Open Bio 2021; 11:633-651. [PMID: 33410284 PMCID: PMC7931240 DOI: 10.1002/2211-5463.13076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 12/19/2022] Open
Abstract
Camellia japonica L. is a flowering tree with several medicinal and cosmetic applications. Here, we investigated the efficacy of C. japonica placenta extract (CJPE) as a potential therapeutic agent for promotion of hair growth and scalp health by using various in vitro and in vivo assays. Moreover, we performed transcriptome analysis to examine the relative expression of human follicle dermal papilla cells (HFDPC) in response to CJPE by RNA-sequencing (RNA-seq). In vitro assays revealed upregulation of the expression of hair growth marker genes in HFDPC after CJPE treatment. Moreover, in vivo clinical tests with 42 adult female participants showed that a solution containing 0.5% CJPE increased the moisture content of the scalp and decreased the scalp's sebum content, dead scalp keratin, and erythema. Furthermore, RNA-seq analysis revealed key genes in HFDPC which are associated with CJPE. Interestingly, genes associated with lipid metabolism and cholesterol efflux were upregulated. Genes upregulated by CJPE are associated with several hormones, including parathyroid, adrenocorticotropic hormone, α-melanocyte-stimulating hormone (alpha-MSH), and norepinephrine, which are involved in hair follicle biology. Furthermore, some upregulated genes are associated with the regulation of axon guidance. In contrast, many genes downregulated by CJPE are associated with structural components of the cytoskeleton. In addition, CJPE suppressed genes associated with muscle structure and development. Taken together, this study provides extensive evidence that CJPE may have potential as a therapeutic agent for scalp treatment and hair growth promotion.
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Affiliation(s)
- Won Kyong Cho
- Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Korea
| | - Hye-In Kim
- Anti-aging Research Institute of BIO-FD&C Co., Ltd., Incheon, Korea
| | - Seung Hye Paek
- Anti-aging Research Institute of BIO-FD&C Co., Ltd., Incheon, Korea
| | - Soo-Yun Kim
- Anti-aging Research Institute of BIO-FD&C Co., Ltd., Incheon, Korea
| | - Hyo Hyun Seo
- Anti-aging Research Institute of BIO-FD&C Co., Ltd., Incheon, Korea
| | - Jihyeok Song
- Anti-aging Research Institute of BIO-FD&C Co., Ltd., Incheon, Korea
| | - Ok Hwa Lee
- Anti-aging Research Institute of BIO-FD&C Co., Ltd., Incheon, Korea
| | - Jiae Min
- Anti-aging Research Institute of BIO-FD&C Co., Ltd., Incheon, Korea
| | - Sang Jun Lee
- Anti-aging Research Institute of BIO-FD&C Co., Ltd., Incheon, Korea
| | - Yeonhwa Jo
- Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Korea
| | - Hoseong Choi
- Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Korea
| | - Jeong Hun Lee
- Anti-aging Research Institute of BIO-FD&C Co., Ltd., Incheon, Korea
| | - Sang Hyun Moh
- Anti-aging Research Institute of BIO-FD&C Co., Ltd., Incheon, Korea
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RNA-binding protein SORBS2 suppresses clear cell renal cell carcinoma metastasis by enhancing MTUS1 mRNA stability. Cell Death Dis 2020; 11:1056. [PMID: 33311452 PMCID: PMC7732854 DOI: 10.1038/s41419-020-03268-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 12/27/2022]
Abstract
RNA-binding proteins (RBPs) predominantly contribute to abnormal posttranscriptional gene modulation and disease progression in cancer. Sorbin and SH3 domain-containing 2 (SORBS2), an RBP, has been reported to be a potent tumor suppressor in several cancer types. Through integrative analysis of clinical specimens, we disclosed that the expression level of SORBS2 was saliently decreased in metastatic tissues and positively correlated with overall survival. We observed that overexpression of SORBS2 brought about decreased metastatic capacity in ccRCC cell lines. Transcriptome-wide analysis revealed that SORBS2 notably increased microtubule-associated tumor-suppressor 1 gene (MTUS1) expression. In-depth mechanistic exploring discovered that the Cys2-His2 zinc finger (C2H2-ZnF) domain of SORBS2 directly bound to the 3′ untranslated region (3′UTR) of MTUS1 mRNA, which increased MTUS1 mRNA stability. In addition, we identified that MTUS1 regulated microtubule dynamics via promoting KIF2CS192 phosphorylation by Aurora B. Together, our research identified SORBS2 as a suppressor of ccRCC metastasis by enhancing MTUS1 mRNA stability, providing a novel understanding of RBPs during ccRCC progression.
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Shan B, Li JY, Liu YJ, Tang XB, Zhou Z, Luo LX. LncRNA H19 Inhibits the Progression of Sepsis-Induced Myocardial Injury via Regulation of the miR-93-5p/SORBS2 Axis. Inflammation 2020; 44:344-357. [PMID: 32996061 DOI: 10.1007/s10753-020-01340-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/02/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022]
Abstract
Sepsis is an infectious disease that seriously endangers human health. It usually leads to myocardial injury which seriously endangers to the health of human beings. H19 has been confirmed to play key roles in various diseases, including sepsis. However, its function in the progression of sepsis-induced myocardial injury remains largely unknown. H9C2 cells were treated with lipopolysaccharide (LPS) to mimic sepsis-induced myocardial injury in vitro. Cell proliferation and apoptosis were detected by MTT assay and flow cytometry, respectively. In addition, gene and protein expression levels in H9C2 cells were measured by quantitative real-time PCR (qRT-PCR) and Western blotting. The levels of inflammatory cytokines in H9C2 cell supernatants were tested by ELISA. JC-1 staining was performed to observe the mitochondrial membrane potential level in H9C2 cells. H19 and SORBS2 were downregulated in H9C2 cells following LPS treatment, while miR-93-5p was upregulated. Moreover, LPS-induced cell growth inhibition and mitochondrial damage were significantly reversed by overexpression of H19. In addition, H19 upregulation notably suppressed LPS-induced inflammatory responses in H9C2 cells. Moreover, H19 sponged miR-93-5p to promote SORBS2 expression. Overall, H19 suppressed sepsis-induced myocardial injury via regulation of the miR-93-5p/SORBS2 axis. H19 attenuated the development of sepsis-induced myocardial injury in vitro via modulation of the miR-93-5p/SORBS2 axis. Thus, H19 could serve as a potential target for the treatment of sepsis-induced myocardial injury.
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Affiliation(s)
- Bin Shan
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, No. 8, Qinnian Avenue Road, Chenzhou, 423000, Hunan Province, People's Republic of China
| | - Jia-Yan Li
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, No. 8, Qinnian Avenue Road, Chenzhou, 423000, Hunan Province, People's Republic of China
| | - Ya-Jiang Liu
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, No. 8, Qinnian Avenue Road, Chenzhou, 423000, Hunan Province, People's Republic of China
| | - Xiao-Bin Tang
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, No. 8, Qinnian Avenue Road, Chenzhou, 423000, Hunan Province, People's Republic of China
| | - Zheng Zhou
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, No. 8, Qinnian Avenue Road, Chenzhou, 423000, Hunan Province, People's Republic of China
| | - Liang-Xian Luo
- Department of Critical Care Medicine, The First People's Hospital of Chenzhou, No. 8, Qinnian Avenue Road, Chenzhou, 423000, Hunan Province, People's Republic of China.
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Badu-Nkansah KA, Lechler T. Proteomic analysis of desmosomes reveals novel components required for epidermal integrity. Mol Biol Cell 2020; 31:1140-1153. [PMID: 32238101 PMCID: PMC7353166 DOI: 10.1091/mbc.e19-09-0542] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Desmosomes are cell–cell adhesions necessary for the maintenance of tissue integrity in the skin and heart. While the core components of desmosomes have been identified, peripheral components that modulate canonical or noncanonical desmosome functions still remain largely unexplored. Here we used targeted proximity labeling approaches to further elaborate the desmosome proteome in epidermal keratinocytes. Quantitative mass spectrometry analysis identified all core desmosomal proteins while uncovering a diverse array of new constituents with broad molecular functions. By individually targeting the inner and outer dense plaques, we defined proteins enriched within these subcompartments. We validated a number of these novel desmosome-associated proteins and find that many are membrane proximal proteins that show a dependence on functional desmosomes for their cortical localization. We further explored the mechanism of localization and function of two novel desmosome-associated adaptor proteins enriched in the desmosome proteome, Crk and Crk-like (CrkL). These proteins interacted with Dsg1 and rely on Dsg1 and desmoplakin for robust cortical localization. Epidermal deletion of both Crk and CrkL resulted in perinatal lethality with defects in desmosome morphology and keratin organization, thus demonstrating the utility of this dataset in identifying novel proteins required for desmosome-dependent epidermal integrity.
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Affiliation(s)
- Kwabena A Badu-Nkansah
- Department of Dermatology and Department of Cell Biology, Duke University, Durham, NC 27710
| | - Terry Lechler
- Department of Dermatology and Department of Cell Biology, Duke University, Durham, NC 27710
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Schlaweck AE, Tazi-Ahnini R, Ü. Basmanav FB, Mohungoo J, Pasternack-Ziach SM, Mattheisen M, Oprisoreanu AM, Humbatova A, Wolf S, Messenger A, Betz RC. Autosomal-dominant hypotrichosis with woolly hair: Novel gene locus on chromosome 4q35.1-q35.2. PLoS One 2019; 14:e0225943. [PMID: 31790498 PMCID: PMC6886801 DOI: 10.1371/journal.pone.0225943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 11/15/2019] [Indexed: 11/18/2022] Open
Abstract
Hypotrichosis simplex (HS) with and without woolly hair (WH) comprises a group of rare, monogenic disorders of hair loss. Patients present with a diffuse loss of scalp and/or body hair, which usually begins in early childhood and progresses into adulthood. Some of the patients also show hair that is tightly curled. Approximately 10 genes for autosomal recessive and autosomal dominant forms of HS have been identified in the last decade, among them five genes for the dominant form. We collected blood and buccal samples from 17 individuals of a large British family with HS and WH. After having sequenced all known dominant genes for HS in this family without the identification of any disease causing mutation, we performed a genome-wide scan, using the HumanLinkage-24 BeadChip, followed by a classical linkage analysis; and whole exome-sequencing (WES). Evidence for linkage was found for a region on chromosome 4q35.1-q35.2 with a maximum LOD score of 3.61. WES led to the identification of a mutation in the gene SORBS2, encoding sorbin and SH3 domain containing 2. Unfortunately, we could not find an additional mutation in any other patient/family with HS; and in cell culture, we could not observe any difference between cloned wildtype and mutant SORBS2 using western blotting and immunofluorescence analyses. Therefore, at present, SORBS2 cannot be considered a definite disease gene for this phenotype. However, the locus on chromosome 4q is a robust and novel finding for hypotrichosis with woolly hair. Further fine mapping and sequencing efforts are therefore warranted in order to confirm SORBS2 as a plausible HS disease gene.
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Affiliation(s)
- Annika E. Schlaweck
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Rachid Tazi-Ahnini
- Department of Infection, Immunity, and Cardiovascular Disease, The Medical School, University of Sheffield, Sheffield, United Kingdom
| | - F. Buket Ü. Basmanav
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Javed Mohungoo
- Department of Dermatology, Royal Hallamshire Hospital, Sheffield, United Kingdom
| | - Sandra M. Pasternack-Ziach
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Manuel Mattheisen
- Department of Psychiatry, Psychosomatics, and Psychotherapy, University Hospital Würzburg, Würzburg, Germany
| | - Ana-Maria Oprisoreanu
- Department of Neuropathology and Department of Epileptology, University Hospital Bonn, Bonn, Germany
| | - Aytaj Humbatova
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Sabrina Wolf
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Andrew Messenger
- Department of Dermatology, Royal Hallamshire Hospital, Sheffield, United Kingdom
| | - Regina C. Betz
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
- * E-mail:
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Liu L, Meng L, Zhang P, Lin H, Chi J, Peng F, Guo H. Angiotensin II inhibits the protein expression of ZO‑1 in vascular endothelial cells by downregulating VE‑cadherin. Mol Med Rep 2018; 18:429-434. [PMID: 29749551 DOI: 10.3892/mmr.2018.8991] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 04/03/2018] [Indexed: 11/06/2022] Open
Abstract
Angiotensin II (Ang II) is reported to be involved in the development of various cardiovascular diseases by disrupting microvessel permeability, however, the underlying mechanism remains to be elucidated. The present study aimed to investigate the mechanism by which Ang II disrupts microvascular permeability. Rat endothelial cells were subjected to primary culture and identification. Cells in passages 4‑7 were then used for the following experiments. The cells were divided into control, Ang II, and Ang II + valsartan groups, and reverse transcription‑quantitative polymerase chain reaction and western blot analyses were perform to evaluate the expression of zonula occludens‑1 (ZO‑1) and vascular endothelial (VE)‑cadherin in the cells. The distribution of ZO‑1 protein was also detected using immunofluorescence assays. It was found that, compared with the control group, lower expression levels of ZO‑1 and VE‑cadherin were present in the Ang II group (P<0.01). ZO‑1 was also irregularly distributed at the periphery of the cells. In addition, the overexpression of VE‑cadherin reversed the effect of Ang II on the expression and distribution of ZO‑1 in endothelial cells. Together, these results suggested that Ang II inhibited the protein expression of ZO‑1 in vascular endothelial cells by downregulating VE‑cadherin, thus destroying the tight junctions between endothelial cells, which may also be the mechanism by which Ang II is involved in the development of cardiovascular diseases.
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Affiliation(s)
- Longbin Liu
- Department of Cardiology, Shaoxing Municipal Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Liping Meng
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Peng Zhang
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Hui Lin
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Jufang Chi
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Fang Peng
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Hangyuan Guo
- Department of Cardiology, Shaoxing Municipal Hospital, Shaoxing, Zhejiang 312000, P.R. China
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