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Li S, Du Y, Du X, Ding X, Zhao A, Wang Z. Transcriptome and proteome revealed the differences in 3 colors of earlobe in Jiangshan Black-bone chicken. Poult Sci 2024; 103:103864. [PMID: 38838590 PMCID: PMC11190713 DOI: 10.1016/j.psj.2024.103864] [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: 03/08/2024] [Revised: 04/30/2024] [Accepted: 05/13/2024] [Indexed: 06/07/2024] Open
Abstract
The earlobe is a featherless, exposed thickening located beneath the ear canal of chickens, which plays a visual signaling role in age, performance, mental vitality, reproduction, and other aspects. However, despite its importance, there have been few studies on the color differences and formation mechanisms of chicken earlobes, particularly the structurally blue earlobes characteristic of the Jiangshan black-bone chicken. In this study, we explored the physiological mechanisms that may influence the formation of differently colored earlobes using 3 types of earlobes from Jiangshan black-bone chickens: light peacock green (Green group), dark peacock green (Blue group), and dark reddish purple (Black group). All 3 earlobe colors exhibited positive melanin Masson-Fontana staining, and the thickness of collagen fibers in the dermis decreased in the order of Green, Blue, and Black groups. A total of 1,953 differentially expressed genes (DEGs) were detected in the 3 earlobes through mRNA sequencing, among which the GO term "collagen trimer" was significantly enriched in DEGs between groups. Additionally, 716 differentially expressed proteins (DEPs) were identified in the 3 earlobes using 4D-DIA proteomics, with the term "collagen fibril organization" being significantly enriched in DEPs between the Green and Black groups. Integrated analysis of transcriptome and proteome data revealed that 12 DEGs and DEPs were commonly differentially expressed between the Green and Black groups, including the gene LUM (corneal keratan sulfate proteoglycan), which was significantly enriched in the "collagen fibril organization" GO term. In conclusion, our study suggests that LUM plays a crucial role in the formation of peacock green earlobes in Jiangshan black-bone chickens. The high level of LUM in peacock green (Green and Blue groups) may affect collagen nanostructures, leading to a stronger effect of melanin-supported dermal collagen on the production of non-iridescent structural colors through coherent scattering, resulting in a bright structural blue color in Jiangshan black-bone chickens. In contrast, the low expression of LUM in dark reddish purple (Black group) reduces the reflection of non-iridescent structural colors, making the earlobe color appear almost black, similar to melanin.
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Affiliation(s)
- Shiru Li
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, College of Animal Science and Technology& College of Veterinary Medicine of Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Yu Du
- Jiangshan Agriculture and Rural Bureau, Zhejiang, Quzhou, 324100
| | - Xue Du
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, College of Animal Science and Technology& College of Veterinary Medicine of Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Xiangying Ding
- Jiangshan Agriculture and Rural Bureau, Zhejiang, Quzhou, 324100
| | - Ayong Zhao
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, College of Animal Science and Technology& College of Veterinary Medicine of Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Zhijun Wang
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, College of Animal Science and Technology& College of Veterinary Medicine of Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
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2
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Li H, Zhang C, Liu Q. Lumican silencing ameliorates β-glycerophosphate-mediated vascular smooth muscle cell calcification by attenuating the inhibition of APOB on KIF2C activity. Open Med (Wars) 2023; 18:20230790. [PMID: 37711155 PMCID: PMC10499013 DOI: 10.1515/med-2023-0790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 08/01/2023] [Accepted: 08/06/2023] [Indexed: 09/16/2023] Open
Abstract
Adverse cardiovascular events are associated with vascular calcification (VC) process, where vascular smooth muscle cells (VSMCs) differentiate into osteoblastic phenotype and deposit hydroxyapatite crystals. Microtubule-associated protein kinesin family member 2C (KIF2C) expression is decreased obviously in VSMC during calcification induction. Accordingly, we investigate the role and potential mechanism of KIF2C on VSMC calcification. The effects of β-glycerophosphate (β-GP)/KIF2C/lumican (LUM) on calcification, calcium content, alkaline phosphatase (ALP) activity, calcification-related markers, Tubulin, the ratio of polymerized (Po) to free (Fr) tubulin, as well as levels of LUM, apolipoprotein B (APOB), and KIF2C were assessed by Alizarin red S staining, calcium assay kit, ALP assay kit, Western blot, immunofluorescence, and quantitative real-time PCR. The interplay between LUM and APOB was estimated using co-immunoprecipitation and immunofluorescence. As a result, β-GP promoted calcification of human VMSCs (HVMSCs) and repressed KIF2C expression. KIF2C overexpression reversed the effect of β-GP on HVSMCs. LUM silencing attenuated β-GP-induced promotion on HVSMC calcification and increased KIF2C expression by interacting with APOB. Collectively, LUM silencing can alleviate β-GP-induced VSMC calcification through mitigating the repression of APOB on KIF2C expression.
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Affiliation(s)
- Haibin Li
- Department of Vascular Surgery, Ningbo Yinzhou People’s Hospital (The Affiliated People’s Hospital of Ningbo University), Ningbo, Zhejiang, 315040, China
| | - Chunyan Zhang
- Department Emergency, The First Hospital of Qiqihar’er City, Qiqihar’er, Heilongjiang, 161021, China
| | - Qiang Liu
- Department of Vascular Surgery, The First Hospital of Qiqihar’er City, No. 700, Bukui North Street, Longsha District, Qiqihar’er, Heilongjiang, 161021, China
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Cheng WC, Lawson C, Liu HH, Wilkie L, Dobromylskyj M, Luis Fuentes V, Dudhia J, Connolly DJ. Exploration of Mediators Associated with Myocardial Remodelling in Feline Hypertrophic Cardiomyopathy. Animals (Basel) 2023; 13:2112. [PMID: 37443910 DOI: 10.3390/ani13132112] [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: 05/15/2023] [Revised: 06/16/2023] [Accepted: 06/17/2023] [Indexed: 07/15/2023] Open
Abstract
Hypertrophic cardiomyopathy (HCM) affects both humans and cats and exhibits considerable interspecies similarities that are exemplified by underlying pathological processes and clinical presentation to the extent that developments in the human field may have direct relevance to the feline disease. Characteristic changes on histological examination include cardiomyocyte hypertrophy and interstitial and replacement fibrosis. Clinically, HCM is characterised by significant diastolic dysfunction due to a reduction in ventricular compliance and relaxation associated with extracellular matrix (ECM) remodelling and the development of ventricular hypertrophy. Studies in rodent models and human HCM patients have identified key protein mediators implicated in these pathological changes, including lumican, lysyl oxidase and TGF-β isoforms. We therefore sought to quantify and describe the cellular location of these mediators in the left ventricular myocardium of cats with HCM and investigate their relationship with the quantity and structural composition of the ECM. We identified increased myocardial content of lumican, LOX and TGF-β2 mainly attributed to their increased expression within cardiomyocytes in HCM cats compared to control cats. Furthermore, we found strong correlations between the expressions of these mediators that is compatible with their role as important components of cellular pathways promoting remodelling of the left ventricular myocardium. Fibrosis and hypertrophy are important pathological changes in feline HCM, and a greater understanding of the mechanisms driving this pathology may facilitate the identification of potential therapies.
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Affiliation(s)
- Wan-Ching Cheng
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield AL9 7TA, UK
| | - Charlotte Lawson
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London NW1 0TU, UK
| | - Hui-Hsuan Liu
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London NW1 0TU, UK
| | - Lois Wilkie
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield AL9 7TA, UK
| | | | - Virginia Luis Fuentes
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield AL9 7TA, UK
| | - Jayesh Dudhia
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield AL9 7TA, UK
| | - David J Connolly
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield AL9 7TA, UK
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Zheng PF, Liu F, Zheng ZF, Pan HW, Liu ZY. Identification MNS1, FRZB, OGN, LUM, SERP1NA3 and FCN3 as the potential immune-related key genes involved in ischaemic cardiomyopathy by random forest and nomogram. Aging (Albany NY) 2023; 15:1475-1495. [PMID: 36863704 PMCID: PMC10042686 DOI: 10.18632/aging.204547] [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: 11/27/2022] [Accepted: 02/11/2023] [Indexed: 03/04/2023]
Abstract
The immune molecular mechanisms involved in ischaemic cardiomyopathy (ICM) have not been fully elucidated. The current study aimed to elucidate the immune cell infiltration pattern of the ICM and identify key immune-related genes that participate in the pathologic process of the ICM. The differentially expressed genes (DEGs) were identified from two datasets (GSE42955 combined with GSE57338) and the top 8 key DEGs related to ICM were screened using random forest and used to construct the nomogram model. Moreover, the "CIBERSORT" software package was used to determine the proportion of infiltrating immune cells in the ICM. A total of 39 DEGs (18 upregulated and 21 downregulated) were identified in the current study. Four upregulated DEGs, including MNS1, FRZB, OGN, and LUM, and four downregulated DEGs, SERP1NA3, RNASE2, FCN3 and SLCO4A1, were identified by the random forest model. The nomogram constructed based on the above 8 key genes suggested a diagnostic value of up to 99% to distinguish the ICM from healthy participants. Meanwhile, most of the key DEGs presented prominent interactions with immune cell infiltrates. The RT-qPCR results suggested that the expression levels of MNS1, FRZB, OGN, LUM, SERP1NA3 and FCN3 between the ICM and control groups were consistent with the bioinformatic analysis results. These results suggested that immune cell infiltration plays a critical role in the occurrence and progression of ICM. Several key immune-related genes, including the MNS1, FRZB, OGN, LUM, SERP1NA3 and FCN3 genes, are expected to be reliable serum markers for the diagnosis of ICM and potential molecular targets for ICM immunotherapy.
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Affiliation(s)
- Peng-Fei Zheng
- Cardiology Department, Hunan Provincial People’s Hospital, Furong, Changsha 410000, Hunan, China
- Clinical Research Center for Heart Failure in Hunan Province, Furong, Changsha 410000, Hunan, China
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Furong, Changsha 410000, Hunan, China
| | - Fen Liu
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Furong, Changsha 410000, Hunan, China
- The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People’s Hospital), Furong, Changsha 410000, Hunan, China
| | - Zhao-Fen Zheng
- Cardiology Department, Hunan Provincial People’s Hospital, Furong, Changsha 410000, Hunan, China
- Clinical Research Center for Heart Failure in Hunan Province, Furong, Changsha 410000, Hunan, China
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Furong, Changsha 410000, Hunan, China
| | - Hong-Wei Pan
- Cardiology Department, Hunan Provincial People’s Hospital, Furong, Changsha 410000, Hunan, China
- Clinical Research Center for Heart Failure in Hunan Province, Furong, Changsha 410000, Hunan, China
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Furong, Changsha 410000, Hunan, China
| | - Zheng-Yu Liu
- Cardiology Department, Hunan Provincial People’s Hospital, Furong, Changsha 410000, Hunan, China
- Clinical Research Center for Heart Failure in Hunan Province, Furong, Changsha 410000, Hunan, China
- Institute of Cardiovascular Epidemiology, Hunan Provincial People’s Hospital, Furong, Changsha 410000, Hunan, China
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5
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Portokallidou K, Dovrolis N, Ragia G, Atzemian N, Kolios G, Manolopoulos VG. Multi-omics integration to identify the genetic expression and protein signature of dilated and ischemic cardiomyopathy. Front Cardiovasc Med 2023; 10:1115623. [PMID: 36860278 PMCID: PMC9968758 DOI: 10.3389/fcvm.2023.1115623] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/30/2023] [Indexed: 02/16/2023] Open
Abstract
Introduction Heart failure (HF) is a complex clinical syndrome leading to high morbidity. In this study, we aimed to identify the gene expression and protein signature of HF main causes, namely dilated cardiomyopathy (DCM) and ischemic cardiomyopathy (ICM). Methods Omics data were accessed through GEO repository for transcriptomic and PRIDE repository for proteomic datasets. Sets of differentially expressed genes and proteins comprising DCM (DiSig) and ICM (IsSig) signatures were analyzed by a multilayered bioinformatics approach. Enrichment analysis via the Gene Ontology was performed through the Metascape platform to explore biological pathways. Protein-protein interaction networks were analyzed via STRING db and Network Analyst. Results Intersection of transcriptomic and proteomic analysis showed 10 differentially expressed genes/proteins in DiSig (AEBP1, CA3, HBA2, HBB, HSPA2, MYH6, SERPINA3, SOD3, THBS4, UCHL1) and 15 differentially expressed genes/proteins in IsSig (AEBP1, APOA1, BGN, CA3, CFH, COL14A1, HBA2, HBB, HSPA2, LTBP2, LUM, MFAP4, SOD3, THBS4, UCHL1). Common and distinct biological pathways between DiSig and IsSig were retrieved, allowing for their molecular characterization. Extracellular matrix organization, cellular response to stress and transforming growth factor-beta were common between two subphenotypes. Muscle tissue development was dysregulated solely in DiSig, while immune cells activation and migration in IsSig. Discussion Our bioinformatics approach sheds light on the molecular background of HF etiopathology showing molecular similarities as well as distinct expression differences between DCM and ICM. DiSig and IsSig encompass an array of "cross-validated" genes at both transcriptomic and proteomic level, which can serve as novel pharmacological targets and possible diagnostic biomarkers.
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Affiliation(s)
- Konstantina Portokallidou
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine and Pharmacological Research Solutions Center, Alexandroupolis, Greece
| | - Nikolas Dovrolis
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine and Pharmacological Research Solutions Center, Alexandroupolis, Greece,Nikolas Dovrolis,
| | - Georgia Ragia
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine and Pharmacological Research Solutions Center, Alexandroupolis, Greece
| | - Natalia Atzemian
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine and Pharmacological Research Solutions Center, Alexandroupolis, Greece
| | - George Kolios
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine and Pharmacological Research Solutions Center, Alexandroupolis, Greece
| | - Vangelis G. Manolopoulos
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine and Pharmacological Research Solutions Center, Alexandroupolis, Greece,Clinical Pharmacology Unit, Academic General Hospital of Alexandroupolis, Alexandroupolis, Greece,*Correspondence: Vangelis G. Manolopoulos,
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6
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Rixon C, Andreassen K, Shen X, Erusappan PM, Almaas VM, Palmero S, Dahl CP, Ueland T, Sjaastad I, Louch WE, Stokke MK, Tønnessen T, Christensen G, Lunde IG. Lumican accumulates with fibrillar collagen in fibrosis in hypertrophic cardiomyopathy. ESC Heart Fail 2022; 10:858-871. [PMID: 36444917 PMCID: PMC10053290 DOI: 10.1002/ehf2.14234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 10/06/2022] [Accepted: 11/07/2022] [Indexed: 12/02/2022] Open
Abstract
AIMS Familial hypertrophic cardiomyopathy (HCM) is the most common form of inherited cardiac disease. It is characterized by myocardial hypertrophy and diastolic dysfunction, and can lead to severe heart failure, arrhythmias, and sudden cardiac death. Cardiac fibrosis, defined by excessive accumulation of extracellular matrix (ECM) components, is central to the pathophysiology of HCM. The ECM proteoglycan lumican is increased during heart failure and cardiac fibrosis, including HCM, yet its role in HCM remains unknown. We provide an in-depth assessment of lumican in clinical and experimental HCM. METHODS Left ventricular (LV) myectomy specimens were collected from patients with hypertrophic obstructive cardiomyopathy (n = 15), and controls from hearts deemed unsuitable for transplantation (n = 8). Hearts were harvested from a mouse model of HCM; Myh6 R403Q mice administered cyclosporine A and wild-type littermates (n = 8-10). LV tissues were analysed for mRNA and protein expression. Patient myectomy or mouse mid-ventricular sections were imaged using confocal microscopy, direct stochastic optical reconstruction microscopy (dSTORM), or electron microscopy. Human foetal cardiac fibroblasts (hfCFBs) were treated with recombinant human lumican (n = 3) and examined using confocal microscopy. RESULTS Lumican mRNA was increased threefold in HCM patients (P < 0.05) and correlated strongly with expression of collagen I (R2 = 0.60, P < 0.01) and III (R2 = 0.58, P < 0.01). Lumican protein was increased by 40% in patients with HCM (P < 0.01) and correlated with total (R2 = 0.28, P = 0.05) and interstitial (R2 = 0.30, P < 0.05) fibrosis. In mice with HCM, lumican mRNA increased fourfold (P < 0.001), and lumican protein increased 20-fold (P < 0.001) in insoluble ECM lysates. Lumican and fibrillar collagen were located together throughout fibrotic areas in HCM patient tissue, with increased co-localization measured in patients and mice with HCM (patients: +19%, P < 0.01; mice: +13%, P < 0.01). dSTORM super-resolution microscopy was utilized to image interstitial ECM which had yet to undergo overt fibrotic remodelling. In these interstitial areas, collagen I deposits located closer to (-15 nm, P < 0.05), overlapped more frequently with (+7.3%, P < 0.05) and to a larger degree with (+5.6%, P < 0.05) lumican in HCM. Collagen fibrils in such deposits were visualized using electron microscopy. The effect of lumican on collagen fibre formation was demonstrated by adding lumican to hfCFB cultures, resulting in thicker (+53.8 nm, P < 0.001), longer (+345.9 nm, P < 0.001), and fewer (-8.9%, P < 0.001) collagen fibres. CONCLUSIONS The ECM proteoglycan lumican is increased in HCM and co-localizes with fibrillar collagen throughout areas of fibrosis in HCM. Our data suggest that lumican may promote formation of thicker collagen fibres in HCM.
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Affiliation(s)
- Chloe Rixon
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- K.G. Jebsen Centre for Cardiac Research University of Oslo Oslo Norway
| | - Kristine Andreassen
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- K.G. Jebsen Centre for Cardiac Research University of Oslo Oslo Norway
- Department of Cardiology Oslo University Hospital, Rikshospitalet Oslo Norway
| | - Xin Shen
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- K.G. Jebsen Centre for Cardiac Research University of Oslo Oslo Norway
| | - Pugazendhi Murugan Erusappan
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- K.G. Jebsen Centre for Cardiac Research University of Oslo Oslo Norway
| | - Vibeke Marie Almaas
- Department of Cardiology Oslo University Hospital, Rikshospitalet Oslo Norway
| | - Sheryl Palmero
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- K.G. Jebsen Centre for Cardiac Research University of Oslo Oslo Norway
| | - Christen Peder Dahl
- Research Institute of Internal Medicine Oslo University Hospital, Rikshospitalet Oslo Norway
| | - Thor Ueland
- Research Institute of Internal Medicine Oslo University Hospital, Rikshospitalet Oslo Norway
- Institute of Clinical Medicine University of Oslo Oslo Norway
- K. G. Jebsen Thrombosis Research and Expertise Center University of Tromsø Tromsø Norway
| | - Ivar Sjaastad
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- K.G. Jebsen Centre for Cardiac Research University of Oslo Oslo Norway
| | - William Edward Louch
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- K.G. Jebsen Centre for Cardiac Research University of Oslo Oslo Norway
| | - Mathis Korseberg Stokke
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- K.G. Jebsen Centre for Cardiac Research University of Oslo Oslo Norway
- Department of Cardiology Oslo University Hospital, Rikshospitalet Oslo Norway
| | - Theis Tønnessen
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- Department of Cardiothoracic Surgery, Division of Cardiovascular and Pulmonary Diseases Oslo University Hospital Ullevål Oslo Norway
| | - Geir Christensen
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- K.G. Jebsen Centre for Cardiac Research University of Oslo Oslo Norway
| | - Ida Gjervold Lunde
- Institute for Experimental Medical Research Oslo University Hospital Ullevål and University of Oslo Oslo Norway
- K.G. Jebsen Centre for Cardiac Research University of Oslo Oslo Norway
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Metabolite, protein, and tissue dysfunction associated with COVID-19 disease severity. Sci Rep 2022; 12:12204. [PMID: 35842456 PMCID: PMC9288092 DOI: 10.1038/s41598-022-16396-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 07/08/2022] [Indexed: 01/09/2023] Open
Abstract
Proteins are direct products of the genome and metabolites are functional products of interactions between the host and other factors such as environment, disease state, clinical information, etc. Omics data, including proteins and metabolites, are useful in characterizing biological processes underlying COVID-19 along with patient data and clinical information, yet few methods are available to effectively analyze such diverse and unstructured data. Using an integrated approach that combines proteomics and metabolomics data, we investigated the changes in metabolites and proteins in relation to patient characteristics (e.g., age, gender, and health outcome) and clinical information (e.g., metabolic panel and complete blood count test results). We found significant enrichment of biological indicators of lung, liver, and gastrointestinal dysfunction associated with disease severity using publicly available metabolite and protein profiles. Our analyses specifically identified enriched proteins that play a critical role in responses to injury or infection within these anatomical sites, but may contribute to excessive systemic inflammation within the context of COVID-19. Furthermore, we have used this information in conjunction with machine learning algorithms to predict the health status of patients presenting symptoms of COVID-19. This work provides a roadmap for understanding the biochemical pathways and molecular mechanisms that drive disease severity, progression, and treatment of COVID-19.
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Huang C, Sharma A, Thakur R, Rai D, Katiki M, Germano JDF, Song Y, Singh S, Sin J, Sengstock D, Andres AM, Murali R, Mentzer RM, Gottlieb RA, Piplani H. Asporin, an extracellular matrix protein, is a beneficial regulator of cardiac remodeling. Matrix Biol 2022; 110:40-59. [DOI: 10.1016/j.matbio.2022.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 03/29/2022] [Accepted: 04/19/2022] [Indexed: 01/15/2023]
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Guan L, Yang Y, Liang JJ, Miao Y, Shang AY, Wang B, Wang YC, Ding M. ERGIC2 and ERGIC3 regulate the ER-to-Golgi transport of gap junction proteins in metazoans. Traffic 2022; 23:140-157. [PMID: 34994051 DOI: 10.1111/tra.12830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/16/2021] [Accepted: 01/04/2022] [Indexed: 11/26/2022]
Abstract
The extremely dynamic life cycle of gap junction connections requires highly efficient intracellular trafficking system especially designed for gap junction proteins, but the underlying mechanisms are largely unknown. Here, we identified that the COPII-associated proteins ERGIC2 (ER-Golgi intermediate compartment) and ERGIC3 are specifically required for the efficient intracellular transport of gap junction proteins in both C. elegans and mice. In the absence of Ergic2 or Ergic3, gap junction proteins accumulate in the ER and Golgi apparatus and the size of endogenous gap junction plaques is reduced. Knocking out the Ergic2 or Ergic3 in mice results in heart enlargement and cardiac malfunction accompanied by reduced number and size of connexin 43 (Cx43) gap junctions. Invertebrates' gap junction protein innexins share no sequence similarity with vertebrates' connexins. However, ERGIC2 and ERGIC3 could bind to gap junction proteins in both worms and mice. Characterization of the highly specialized roles of ERGIC2 and ERGIC3 in metazoans reveals how the early secretory pathway could be adapted to facilitate the efficient transport for gap junction proteins in vivo. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Liying Guan
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Yongzhi Yang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jing Jing Liang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Yue Miao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Ang Yang Shang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Baolei Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Ying Chun Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Mei Ding
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
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10
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Wang Z, Chen X, Li C, Tang W. Application of weighted gene co-expression network analysis to identify novel key genes in diabetic nephropathy. J Diabetes Investig 2022; 13:112-124. [PMID: 34245661 PMCID: PMC8756323 DOI: 10.1111/jdi.13628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 06/18/2021] [Accepted: 07/05/2021] [Indexed: 02/05/2023] Open
Abstract
AIMS/INTRODUCTION Diabetic nephropathy (DN) is among the leading causes of end-stage renal disease worldwide. DN pathogenesis remains largely unknown. Weighted gene co-expression network analysis is a powerful bioinformatic tool for identifying key genes in diseases. MATERIALS AND METHODS The datasets GSE30122, GSE104948, GSE37463 and GSE47185 containing 23 DN and 23 normal glomeruli samples were obtained from the National Center for Biotechnology Information Gene Expression Omnibus database. After data pre-processing, weighted gene co-expression network analysis was carried out to cluster significant modules. Then, Gene Set Enrichment Analysis-based Gene Ontology analysis and visualization of network were carried out to screen the key genes in the most significant modules. The connectivity map analysis was carried out to find the significant chemical compounds. Finally, some key genes were validated in in vivo and in vitro experiments. RESULTS A total of 454 upregulated and 392 downregulated genes were identified. A total of 16 modules were clustered, and the most significant modules (green, red and yellow modules) were determined. The green module was associated with extracellular matrix organization, the red module was associated with immunity reaction and the yellow module was associated with kidney development. We found several key genes in these three modules separately, and part of them were validated in vivo and in vitro successfully. We found the top 15 chemical compounds that could perturb the overall expression of key genes in DN. CONCLUSION Weighted gene co-expression network analysis was applied to DN expression profiling in combination with connectivity map analysis. Several novel key genes and chemical compounds were screened out, providing new molecular targets for DN.
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Affiliation(s)
- Zheng Wang
- Department of NephrologyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Xiaolei Chen
- Department of NephrologyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Chao Li
- Department of NephrologyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Wanxin Tang
- Department of NephrologyWest China HospitalSichuan UniversityChengduSichuanChina
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11
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Colon-Caraballo M, Lee N, Nallasamy S, Myers K, Hudson D, Iozzo RV, Mahendroo M. Novel regulatory roles of small leucine-rich proteoglycans in remodeling of the uterine cervix in pregnancy. Matrix Biol 2022; 105:53-71. [PMID: 34863915 PMCID: PMC9446484 DOI: 10.1016/j.matbio.2021.11.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 01/03/2023]
Abstract
The cervix undergoes rapid and dramatic shifts in collagen and elastic fiber structure to achieve its disparate physiological roles of competence during pregnancy and compliance during birth. An understanding of the structure-function relationships of collagen and elastic fibers to maintain extracellular matrix (ECM) homeostasis requires an understanding of the mechanisms executed by non-structural ECM molecules. Small-leucine rich proteoglycans (SLRPs) play key functions in biology by affecting collagen fibrillogenesis and regulating enzyme and growth factor bioactivities. In the current study, we evaluated collagen and elastic fiber structure-function relationships in mouse cervices using mice with genetic ablation of decorin and/or biglycan genes as representative of Class I SLRPs, and lumican gene representative of Class II SLRP. We identified structural defects in collagen fibril and elastic fiber organization in nonpregnant mice lacking decorin, or biglycan or lumican with variable resolution of defects noted during pregnancy. The severity of collagen and elastic fiber defects was greater in nonpregnant mice lacking both decorin and biglycan and defects were maintained throughout pregnancy. Loss of biglycan alone reduced tissue extensibility in nonpregnant mice while loss of both decorin and biglycan manifested in decreased rupture stretch in late pregnancy. Collagen cross-link density was similar in the Class I SLRP null mice as compared to wild-type nonpregnant and pregnant controls. A broader range in collagen fibril diameter along with an increase in mean fibril spacing was observed in the mutant mice compared to wild-type controls. Collectively, these findings uncover functional redundancy and hierarchical roles of Class I and Class II SLRPs as key regulators of cervical ECM remodeling in pregnancy. These results expand our understating of the critical role SLRPs play to maintain ECM homeostasis in the cervix.
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Affiliation(s)
- Mariano Colon-Caraballo
- Department of Ob/Gyn and Cecil H. and Ida Green Center for Reproductive Biological Science, The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Nicole Lee
- Department of Mechanical Engineering, Columbia University New York, New York 10027
| | - Shanmugasundaram Nallasamy
- Department of Ob/Gyn and Cecil H. and Ida Green Center for Reproductive Biological Science, The University of Texas Southwestern Medical Center, Dallas, Texas 75390,Department of Obstetrics, Gynecology and Reproductive Sciences, University of Vermont Burlington, Vermont 05405
| | - Kristin Myers
- Department of Mechanical Engineering, Columbia University New York, New York 10027
| | - David Hudson
- Department of Orthopaedics and Sports Medicine, University of Washington Seattle, Washington 98165
| | - Renato V. Iozzo
- Department of Pathology, Anatomy, and Cell Biology and the Translational Cellular Oncology Program, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania 19107
| | - Mala Mahendroo
- Department of Ob/Gyn and Cecil H. and Ida Green Center for Reproductive Biological Science, The University of Texas Southwestern Medical Center, Dallas, Texas 75390,Correspondence to: Mala Mahendroo, Ph.D, Department of Ob/Gyn and Cecil H. and Ida Green Center for Reproductive Biological Sciences, The University of Texas Southwestern Medical Center, Dallas, Texas 75390.
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12
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Cao J, Liu Z, Liu J, Li C, Zhang G, Shi R. Bioinformatics Analysis and Identification of Genes and Pathways in Ischemic Cardiomyopathy. Int J Gen Med 2021; 14:5927-5937. [PMID: 34584445 PMCID: PMC8464396 DOI: 10.2147/ijgm.s329980] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/08/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Ischemic cardiomyopathy (ICM) is considered to be the most common cause of heart failure, with high prevalence and mortality. This study aimed to investigate the different expressed genes (DEGs) and pathways in the pathogenesis of ICM using bioinformatics analysis. Methods The control and ICM datasets GSE116250, GSE46224 and GSE5406 were collected from the gene expression omnibus (GEO) database. DEGs were identified using limma package of R software, and co-expressed genes were identified using Venn diagrams. Then, the gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed to explore the biological functions and signaling pathways. Protein-protein interaction (PPI) networks were assembled with Cytoscape software to identify hub genes related to the pathogenesis of ICM. RT-PCR of Heart tissues (n=2 for non-failing controls and n=4 for ischemic cardiomyopathy patients) was used to validate the bioinformatic results. Results A total of 844 DEGs were screened from GSE116250, of which 447 were up-regulated genes and 397 were down-regulated genes, respectively. A total of 99 DEGs were singled out from GSE46224, of which 58 were up-regulated genes and 41 were down-regulated genes, respectively. Thirty DEGs were screened from GSE5406, including 10 genes with up-regulated expression and 20 genes with down-regulated expression. Five up-regulated and 3 down-regulated co-expressed DEGs were intersected in three datasets. GO and KEGG pathway analyses revealed that DEGs are mainly enriched in collagen fibril organization, protein digestion and absorption, AGE-RAGE signaling pathway and other related pathways. Collagen alpha-1(III) chain (COL3A1), collagen alpha-2(I) chain (COL1A2) and lumican (LUM) are the three hub genes in all three datasets through PPI network analysis. The expression of 5 DEGs (SERPINA3, FCN3, COL3A1, HBB, MXRA5) in heart tissues by qRT-PCR results was consistent with our GEO analysis, while expression of 3 DEGs (ASPN, LUM, COL1A2) was opposite with GEO analysis. Conclusion These findings from this bioinformatics network analysis investigated key hub genes, which contributed to better understanding the mechanism and new therapeutic targets of ICM.
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Affiliation(s)
- Jing Cao
- Department of Cardiovascular Medicine, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Zhaoya Liu
- Department of Geriatrics, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Jie Liu
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Chan Li
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Guogang Zhang
- Department of Cardiovascular Medicine, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Ruizheng Shi
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
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13
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Ma Z, Wang X, Lv Q, Gong Y, Xia M, Zhuang L, Lu X, Yang Y, Zhang W, Fu G, Ye Y, Lai D. Identification of Underlying Hub Genes Associated with Hypertrophic Cardiomyopathy by Integrated Bioinformatics Analysis. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2021; 14:823-837. [PMID: 34285551 PMCID: PMC8285300 DOI: 10.2147/pgpm.s314880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 06/03/2021] [Indexed: 11/23/2022]
Abstract
Background Considered as one of the major reasons of sudden cardiac death, hypertrophic cardiomyopathy (HCM) is a common inherited cardiovascular disease. However, effective treatment for HCM is still lacking. Identification of hub gene may be a powerful tool for discovering potential therapeutic targets and candidate biomarkers. Methods We analysed three gene expression datasets for HCM from the Gene Expression Omnibus. Two of them were merged by “sva” package. The merged dataset was used for analysis while the other dataset was used for validation. Following this, a weighted gene coexpression network analysis (WGCNA) was performed, and the key module most related to HCM was identified. Based on the intramodular connectivity, we identified the potential hub genes. Then, a receiver operating characteristic curve analysis was performed to verify the diagnostic values of hub genes. Finally, we validated changes of hub genes, for genetic transcription and protein expression levels, in datasets of HCM patients and myocardium of transverse aortic constriction (TAC) mice. Results In the merged dataset, a total of 455 differentially expressed genes (DEGs) were identified from normal and hypertrophic myocardium. In WGCNA, the blue module was identified as the key module and the genes in this module showed a high positive correlation with HCM. Functional enrichment analysis of DEGs and key module revealed that the extracellular matrix, fibrosis, and neurohormone pathways played important roles in HCM. FRZB, COL14A1, CRISPLD1, LUM, and sFRP4 were identified as hub genes in the key module. These genes showed a good predictive value for HCM and were significantly up-regulated in HCM patients and TAC mice. We also found protein expression of LUM and sFRP4 increased in myocardium of TAC mice. Conclusion This study revealed that five hub genes are involved in the occurrence and development of HCM, and they are potentially to be used as therapeutic targets and biomarkers for HCM.
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Affiliation(s)
- Zetao Ma
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China.,Department of Cardiology, Zhongshan People's Hospital, Zhongshan, Guangdong Province, 528403, People's Republic of China
| | - Xizhi Wang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
| | - Qingbo Lv
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
| | - Yingchao Gong
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
| | - Minghong Xia
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
| | - Lenan Zhuang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
| | - Xue Lu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
| | - Ying Yang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
| | - Wenbin Zhang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
| | - Guosheng Fu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
| | - Yang Ye
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
| | - Dongwu Lai
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310016, People's Republic of China
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14
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Öztürk-Öncel MÖ, Heras-Bautista CO, Uzun L, Hür D, Hescheler J, Pfannkuche K, Garipcan B. Impact of Poly(dimethylsiloxane) Surface Modification with Conventional and Amino Acid-Conjugated Self-Assembled Monolayers on the Differentiation of Induced Pluripotent Stem Cells into Cardiomyocytes. ACS Biomater Sci Eng 2021; 7:1539-1551. [DOI: 10.1021/acsbiomaterials.0c01434] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- M. Özgen Öztürk-Öncel
- Institute of Biomedical Engineering, Boğaziçi University, Kandilli Campus, Rasathane Cd. Uskudar, 34684 Istanbul, Turkey
| | - Carlos O. Heras-Bautista
- Center of Physiology and Pathophysiology, Institute for Neurophysiology, Medical Faculty, University of Cologne, Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Lokman Uzun
- Department of Chemistry, Hacettepe University, Beytepe Campus, 06800 Ankara, Turkey
| | - Deniz Hür
- Department of Chemistry, Eskisehir Technical University, 2 Eylül Campus Tepebaşı, 26555 Eskisehir, Turkey
| | - Jürgen Hescheler
- Center of Physiology and Pathophysiology, Institute for Neurophysiology, Medical Faculty, University of Cologne, Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Kurt Pfannkuche
- Center of Physiology and Pathophysiology, Institute for Neurophysiology, Medical Faculty, University of Cologne, Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Bora Garipcan
- Institute of Biomedical Engineering, Boğaziçi University, Kandilli Campus, Rasathane Cd. Uskudar, 34684 Istanbul, Turkey
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15
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Yegorova S, Yegorov O, Ferreira LF. RNA-sequencing reveals transcriptional signature of pathological remodeling in the diaphragm of rats after myocardial infarction. Gene 2020; 770:145356. [PMID: 33333219 DOI: 10.1016/j.gene.2020.145356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 11/11/2020] [Accepted: 12/01/2020] [Indexed: 12/21/2022]
Abstract
The diaphragm is the main inspiratory muscle, and the chronic phase post-myocardial infarction (MI) is characterized by diaphragm morphological, contractile, and metabolic abnormalities. However, the mechanisms of diaphragm weakness are not fully understood. In the current study, we aimed to identify the transcriptome changes associated with diaphragm abnormalities in the chronic stage MI. We ligated the left coronary artery to cause MI in rats and performed RNA-sequencing (RNA-Seq) in diaphragm samples 16 weeks post-surgery. The sham group underwent thoracotomy and pericardiotomy but no artery ligation. We identified 112 differentially expressed genes (DEGs) out of a total of 9664 genes. Myocardial infarction upregulated and downregulated 42 and 70 genes, respectively. Analysis of DEGs in the framework of skeletal muscle-specific biological networks suggest remodeling in the neuromuscular junction, extracellular matrix, sarcomere, cytoskeleton, and changes in metabolism and iron homeostasis. Overall, the data are consistent with pathological remodeling of the diaphragm and reveal potential biological targets to prevent diaphragm weakness in the chronic stage MI.
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Affiliation(s)
- Svetlana Yegorova
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL 32611, USA.
| | - Oleg Yegorov
- Department of Neurosurgery, University of Florida, Gainesville, FL 32611, USA.
| | - Leonardo F Ferreira
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL 32611, USA.
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16
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Impaired collagen fibril assembly in keloids with enhanced expression of lumican and collagen V. Arch Biochem Biophys 2020; 697:108676. [PMID: 33188736 DOI: 10.1016/j.abb.2020.108676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 09/22/2020] [Accepted: 11/08/2020] [Indexed: 12/17/2022]
Abstract
Keloids are characterized by fibroblast activation and altered architecture of extracellular matrix (ECM). Excessive deposition of ECM molecules and irregular organization of collagen fibers have been observed in keloids. However, the ultrastructural alteration of collagen has not been fully investigated. In this study, the differences in tissue structure, collagen ultrastructure, matrix components, mechanical properties and collagen assembling molecules between keloids and their extra-lesional skins (ELSs) were explored using histology, transmission electron microscope (TEM), qPCR, Western blot, immunohistochemistry and bioinformatics. Histological evaluation showed thinner fibers in keloids with increased contents of collagen III and proteoglycans, which were supported by TEM findings of thinner collagen fibrils and less developed D-band periodicity in keloids than in ELSs (p < 0.05). In addition, total collagen and water contents were significantly increased (p < 0.05) along with richer proteoglycan production in keloids vs ELSs, which also led to increased stiffness and decreased maximal load in keloids compared with ELSs. Mechanism study showed that multiple molecules related to matrix assembly were significantly upregulated in keloids (p < 0.05). In particular, lumican and collagen V showed high degrees in co-expression analysis and their upregulation levels were revealed from microarray data, which were also verified in keloids at both gene and protein levels (p < 0.05). Nevertheless, siRNA knockdown of lumican failed to affect in vitro collagen assembly, but caused upregulated collagen V expression along with the upregulation of focal adhesion kinase, TGF-β1, TGF-β3 and PDGF, among which some are known for capable of enhancing collagen V expression. In conclusion, this study demonstrates impaired collagen assembly along with enhanced expression of lumican and collagen V, both are known for interfering with collagen fibril assembly.
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17
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Kuhn TC, Knobel J, Burkert-Rettenmaier S, Li X, Meyer IS, Jungmann A, Sicklinger F, Backs J, Lasitschka F, Müller OJ, Katus HA, Krijgsveld J, Leuschner F. Secretome Analysis of Cardiomyocytes Identifies PCSK6 (Proprotein Convertase Subtilisin/Kexin Type 6) as a Novel Player in Cardiac Remodeling After Myocardial Infarction. Circulation 2020; 141:1628-1644. [PMID: 32100557 DOI: 10.1161/circulationaha.119.044914] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Acute occlusion of a coronary artery results in swift tissue necrosis. Bordering areas of the infarcted myocardium can also experience impaired blood supply and reduced oxygen delivery, leading to altered metabolic and mechanical processes. Although transcriptional changes in hypoxic cardiomyocytes are well studied, little is known about the proteins that are actively secreted from these cells. METHODS We established a novel secretome analysis of cardiomyocytes by combining stable isotope labeling and click chemistry with subsequent mass spectrometry analysis. Further functional validation experiments included ELISA measurement of human samples, murine left anterior descending coronary artery ligation, and adeno-associated virus 9-mediated in vivo overexpression in mice. RESULTS The presented approach is feasible for analysis of the secretome of primary cardiomyocytes without serum starvation. A total of 1026 proteins were identified to be secreted within 24 hours, indicating a 5-fold increase in detection compared with former approaches. Among them, a variety of proteins have not yet been explored in the context of cardiovascular pathologies. One of the secreted factors most strongly upregulated upon hypoxia was PCSK6 (proprotein convertase subtilisin/kexin type 6). Validation experiments revealed an increase of PCSK6 on mRNA and protein level in hypoxic cardiomyocytes. PCSK6 expression was elevated in hearts of mice after 3 days of ligation of the left anterior descending artery, a finding confirmed by immunohistochemistry. ELISA measurements in human serum also indicate distinct kinetics for PCSK6 in patients with acute myocardial infarction, with a peak on postinfarction day 3. Transfer of PCSK6-depleted cardiomyocyte secretome resulted in decreased expression of collagen I and III in fibroblasts compared with control treated cells, and small interfering RNA-mediated knockdown of PCSK6 in cardiomyocytes impacted transforming growth factor-β activation and SMAD3 (mothers against decapentaplegic homolog 3) translocation in fibroblasts. An adeno-associated virus 9-mediated, cardiomyocyte-specific overexpression of PCSK6 in mice resulted in increased collagen expression and cardiac fibrosis, as well as decreased left ventricular function, after myocardial infarction. CONCLUSIONS A novel mass spectrometry-based approach allows investigation of the secretome of primary cardiomyocytes. Analysis of hypoxia-induced secretion led to the identification of PCSK6 as being crucially involved in cardiac remodeling after acute myocardial infarction.
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Affiliation(s)
- Tim Christian Kuhn
- Department of Cardiology, Medical University Hospital, Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., H.A.K., F.L.).,DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., J.B., H.A.K., F.L.)
| | - Johannes Knobel
- Department of Cardiology, Medical University Hospital, Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., H.A.K., F.L.).,DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., J.B., H.A.K., F.L.)
| | - Sonja Burkert-Rettenmaier
- Department of Cardiology, Medical University Hospital, Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., H.A.K., F.L.).,DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., J.B., H.A.K., F.L.)
| | - Xue Li
- Department of Cardiology, Medical University Hospital, Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., H.A.K., F.L.).,DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., J.B., H.A.K., F.L.)
| | - Ingmar Sören Meyer
- Department of Cardiology, Medical University Hospital, Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., H.A.K., F.L.).,DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., J.B., H.A.K., F.L.)
| | - Andreas Jungmann
- Department of Cardiology, Medical University Hospital, Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., H.A.K., F.L.).,DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., J.B., H.A.K., F.L.)
| | - Florian Sicklinger
- Department of Cardiology, Medical University Hospital, Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., H.A.K., F.L.).,DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., J.B., H.A.K., F.L.)
| | - Johannes Backs
- DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., J.B., H.A.K., F.L.).,Department of Molecular Cardiology and Epigenetics, Heidelberg, Germany (J.B.)
| | - Felix Lasitschka
- Institute of Pathology, University of Heidelberg, Germany (Fe.L.)
| | - Oliver J Müller
- Department of Internal Medicine III, University of Kiel, Germany (O.J.M.)
| | - Hugo A Katus
- Department of Cardiology, Medical University Hospital, Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., H.A.K., F.L.).,DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., J.B., H.A.K., F.L.)
| | - Jeroen Krijgsveld
- Deutsches Krebsforschungszentrum (DKFZ), Heidelberg, Germany (Je.K.).,Heidelberg University, Medical Faculty, Germany (Je.K.)
| | - Florian Leuschner
- Department of Cardiology, Medical University Hospital, Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., H.A.K., F.L.).,DZHK (German Centre for Cardiovascular Research), Heidelberg, Germany (T.C.K., J.K., S.B-R., X.L., I.S.M., A.J., F.S., J.B., H.A.K., F.L.)
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18
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Mohammadzadeh N, Melleby AO, Palmero S, Sjaastad I, Chakravarti S, Engebretsen KVT, Christensen G, Lunde IG, Tønnessen T. Moderate Loss of the Extracellular Matrix Proteoglycan Lumican Attenuates Cardiac Fibrosis in Mice Subjected to Pressure Overload. Cardiology 2020; 145:187-198. [PMID: 31968347 DOI: 10.1159/000505318] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 12/05/2019] [Indexed: 12/20/2022]
Abstract
INTRODUCTION The heart undergoes myocardial remodeling during progression to heart failure following pressure overload. Myocardial remodeling is associated with structural and functional changes in cardiac myocytes, fibroblasts, and the extracellular matrix (ECM) and is accompanied by inflammation. Cardiac fibrosis, the accumulation of ECM molecules including collagens and collagen cross-linking, contributes both to impaired systolic and diastolic function. Insufficient mechanistic insight into what regulates cardiac fibrosis during pathological conditions has hampered therapeutic so-lutions. Lumican (LUM) is an ECM-secreted proteoglycan known to regulate collagen fibrillogenesis. Its expression in the heart is increased in clinical and experimental heart failure. Furthermore, LUM is important for survival and cardiac remodeling following pressure overload. We have recently reported that total lack of LUM increased mortality and left ventricular dilatation, and reduced collagen expression and cross-linking in LUM knockout mice after aortic banding (AB). Here, we examined the effect of LUM on myocardial remodeling and function following pressure overload in a less extreme mouse model, where cardiac LUM level was reduced to 50% (i.e., moderate loss of LUM). METHODS AND RESULTS mRNA and protein levels of LUM were reduced to 50% in heterozygous LUM (LUM+/-) hearts compared to wild-type (WT) controls. LUM+/- mice were subjected to AB. There was no difference in survival between LUM+/- and WT mice post-AB. Echocardiography revealed no striking differences in cardiac geometry between LUM+/- and WT mice 2, 4, and 6 weeks post-AB, although markers of diastolic dysfunction indicated better function in LUM+/- mice. LUM+/- hearts revealed reduced cardiac fibrosis assessed by histology. In accordance, the expression of collagen I and III, the main fibrillar collagens in the heart, and other ECM molecules central to fibrosis, i.e. including periostin and fibronectin, was reduced in the hearts of LUM+/- compared to WT 6 weeks post-AB. We found no differences in collagen cross-linking between LUM+/- and WT mice post-AB, as assessed by histology and qPCR. CONCLUSIONS Moderate lack of LUM attenuated cardiac fibrosis and improved diastolic dysfunction following pressure overload in mice, adding to the growing body of evidence suggesting that LUM is a central profibrotic molecule in the heart that could serve as a potential therapeutic target.
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Affiliation(s)
- Naiyereh Mohammadzadeh
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Arne Olav Melleby
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Sheryl Palmero
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Ivar Sjaastad
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Shukti Chakravarti
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA.,Department of Ophthalmology and Pathology, NYU Langone Health, New York, New York, USA
| | | | - Geir Christensen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Ida G Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research and Center for Heart Failure Research, University of Oslo, Oslo, Norway.,Center for Molecular Medicine Norway, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Theis Tønnessen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway, .,KG Jebsen Center for Cardiac Research and Center for Heart Failure Research, University of Oslo, Oslo, Norway, .,Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway,
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19
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Mohammadzadeh N, Lunde IG, Andenæs K, Strand ME, Aronsen JM, Skrbic B, Marstein HS, Bandlien C, Nygård S, Gorham J, Sjaastad I, Chakravarti S, Christensen G, Engebretsen KVT, Tønnessen T. The extracellular matrix proteoglycan lumican improves survival and counteracts cardiac dilatation and failure in mice subjected to pressure overload. Sci Rep 2019; 9:9206. [PMID: 31235849 PMCID: PMC6591256 DOI: 10.1038/s41598-019-45651-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 06/07/2019] [Indexed: 12/20/2022] Open
Abstract
Left ventricular (LV) dilatation is a key step in transition to heart failure (HF) in response to pressure overload. Cardiac extracellular matrix (ECM) contains fibrillar collagens and proteoglycans, important for maintaining tissue integrity. Alterations in collagen production and cross-linking are associated with cardiac LV dilatation and HF. Lumican (LUM) is a collagen binding proteoglycan with increased expression in hearts of patients and mice with HF, however, its role in cardiac function remains poorly understood. To examine the role of LUM in pressure overload induced cardiac remodeling, we subjected LUM knock-out (LUMKO) mice to aortic banding (AB) and treated cultured cardiac fibroblasts (CFB) with LUM. LUMKO mice exhibited increased mortality 1-14 days post-AB. Echocardiography revealed increased LV dilatation, altered hypertrophic remodeling and exacerbated contractile dysfunction in surviving LUMKO 1-10w post-AB. LUMKO hearts showed reduced collagen expression and cross-linking post-AB. Transcriptional profiling of LUMKO hearts by RNA sequencing revealed 714 differentially expressed transcripts, with enrichment of cardiotoxicity, ECM and inflammatory pathways. CFB treated with LUM showed increased mRNAs for markers of myofibroblast differentiation, proliferation and expression of ECM molecules important for fibrosis, including collagens and collagen cross-linking enzyme lysyl oxidase. In conclusion, we report the novel finding that lack of LUM attenuates collagen cross-linking in the pressure-overloaded heart, leading to increased mortality, dilatation and contractile dysfunction in mice.
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Affiliation(s)
- Naiyereh Mohammadzadeh
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Ida G Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- Center for Molecular Medicine Norway, Oslo University Hospital and University of Oslo, Oslo, Norway
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Kine Andenæs
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Mari E Strand
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Jan Magnus Aronsen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Bjørknes College, Oslo, Norway
| | - Biljana Skrbic
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway
| | - Henriette S Marstein
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Caroline Bandlien
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway
| | - Ståle Nygård
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- Department of Informatics, University of Oslo, Oslo, Norway
| | - Joshua Gorham
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Ivar Sjaastad
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Shukti Chakravarti
- Department of Medicine, Johns Hopkins University, Baltimore, PhD, USA
- Department of Ophthalmology and Pathology, NYU Langone Health, Alexandria Life Sciences Center, West Tower, New York, NY, NY10011, USA
| | - Geir Christensen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Kristin V T Engebretsen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- Department of Surgery, Vestre Viken Hospital, Drammen, Norway
| | - Theis Tønnessen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.
- KG Jebsen Center for Cardiac Research, University of Oslo and Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway.
- Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway.
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20
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Heras-Bautista CO, Mikhael N, Lam J, Shinde V, Katsen-Globa A, Dieluweit S, Molcanyi M, Uvarov V, Jütten P, Sahito RG, Mederos-Henry F, Piechot A, Brockmeier K, Hescheler J, Sachinidis A, Pfannkuche K. Cardiomyocytes facing fibrotic conditions re-express extracellular matrix transcripts. Acta Biomater 2019; 89:180-192. [PMID: 30862552 DOI: 10.1016/j.actbio.2019.03.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 03/06/2019] [Accepted: 03/07/2019] [Indexed: 01/14/2023]
Abstract
Pathophysiological conditions, such as myocardial infarction and mechanical overload affect the mammalian heart integrity, leading to a stiffened fibrotic tissue. With respect to the pathophysiology of cardiac fibrosis but also in the limelight of upcoming approaches of cardiac cell therapy it is of interest to decipher the interaction of cardiomyocytes with fibrotic matrix. Therefore, we designed a hydrogel-based model to engineer fibrotic tissue in vitro as an approach to predict the behavior of cardiomyocytes facing increased matrix rigidity. Here, we generated pure induced pluripotent stem cell-derived cardiomyocytes and cultured them on engineered polyacrylamide hydrogels matching the elasticities of healthy as well as fibrotic cardiac tissue. Only in cardiomyocytes cultured on matrices with fibrotic-like elasticity, transcriptional profiling revealed a substantial up-regulation of a whole panel of cardiac fibrosis-associated transcripts, including collagen I and III, decorin, lumican, and periostin. In addition, matrix metalloproteinases and their inhibitors, known to be essential in cardiac remodeling, were found to be elevated as well as insulin-like growth factor 2. Control experiments with primary cardiac fibroblasts were analyzed and did not show comparable behavior. In conclusion, we do not only present a snapshot on the transcriptomic fingerprint alterations in cardiomyocytes under pathological conditions but also provide a new reproducible approach to study the effects of fibrotic environments to various cell types. STATEMENT OF SIGNIFICANCE: The ageing population in many western countries is faced with an increasing burden of ageing-related diseases such as heart failure which is associated with cardiac fibrosis. A deeper understanding of the interaction of organotypic cells with altered extracellular matrix mechanical properties is of pivotal importance to understand the underlying mechanisms. Here, we present a strategy to combine hydrogel matrices with induced pluripotent stem cell derived cardiomyocytes to study the effect of matrix stiffening on these cells. Our findings suggest an active role of matrix stiffening on cardiomyocyte function and heart failure progression.
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21
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Suzuki-Hatano S, Saha M, Soustek MS, Kang PB, Byrne BJ, Cade WT, Pacak CA. AAV9- TAZ Gene Replacement Ameliorates Cardiac TMT Proteomic Profiles in a Mouse Model of Barth Syndrome. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2019; 13:167-179. [PMID: 30788385 PMCID: PMC6369239 DOI: 10.1016/j.omtm.2019.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 01/16/2019] [Indexed: 12/23/2022]
Abstract
Barth syndrome (BTHS) is a rare mitochondrial disease that causes severe cardiomyopathy and has no disease-modifying therapy. It is caused by recessive mutations in the gene tafazzin (TAZ), which encodes tafazzin-an acyltransferase that remodels the inner mitochondrial membrane lipid cardiolipin. To identify novel mechanistic pathways involved in BTHS and evaluate the effects of gene therapy on proteomic profiles, we performed a multiplex tandem mass tagging (TMT) quantitative proteomics analysis to compare protein expression profiles from heart lysates isolated from BTHS, healthy wild-type (WT), and BTHS treated with adeno-associated virus serotype 9 (AAV9)-TAZ gene replacement as neonates or adults. 197 proteins with ≥2 unique peptides were identified. Of these, 91 proteins were significantly differentially expressed in BTHS compared to WT controls. Cause-effect relationships between tafazzin deficiency and altered protein profiles were confirmed through demonstrated significant improvements in expression levels following administration of AAV9-TAZ. The importance of TMEM65 in Cx43 localization to cardiac intercalated discs was revealed as a novel consequence of tafazzin deficiency that was improved following gene therapy. This study identifies novel mechanistic pathways involved in the pathophysiology of BTHS, demonstrates the ability of gene delivery to improve protein expression profiles, and provides support for clinical translation of AAV9-TAZ gene therapy.
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Affiliation(s)
- Silveli Suzuki-Hatano
- Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Madhurima Saha
- Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Meghan S Soustek
- Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA.,Department of Molecular Genetics and Microbiology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Peter B Kang
- Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA.,Department of Molecular Genetics and Microbiology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Barry J Byrne
- Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA.,Department of Molecular Genetics and Microbiology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - W Todd Cade
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Christina A Pacak
- Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA.,Department of Molecular Genetics and Microbiology, University of Florida College of Medicine, Gainesville, FL 32610, USA
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22
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Emerging roles of proteoglycans in cardiac remodeling. Int J Cardiol 2018; 278:192-198. [PMID: 30528626 DOI: 10.1016/j.ijcard.2018.11.125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 11/12/2018] [Accepted: 11/27/2018] [Indexed: 02/07/2023]
Abstract
Cardiac remodeling is the response of the heart to a range of pathological stimuli. Cardiac remodeling is initially adaptive; however, if sustained, it ultimately causes adverse clinical outcomes. Cardiomyocyte loss or hypertrophy, inflammation and fibrosis are hallmarks of cardiac remodeling. Proteoglycans, which are composed of glycosaminoglycans and a core protein, are a non-structural component of the extracellular matrix. The lack of proteoglycans results in cardiovascular defects during development. Moreover, emerging evidence has indicated that proteoglycans act as significant modifiers in ischemia and pressure overload-related cardiac remodeling. Proteoglycans may also provide novel therapeutic strategies for further improvement in the prognosis of cardiovascular diseases.
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23
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Andenæs K, Lunde IG, Mohammadzadeh N, Dahl CP, Aronsen JM, Strand ME, Palmero S, Sjaastad I, Christensen G, Engebretsen KVT, Tønnessen T. The extracellular matrix proteoglycan fibromodulin is upregulated in clinical and experimental heart failure and affects cardiac remodeling. PLoS One 2018; 13:e0201422. [PMID: 30052659 PMCID: PMC6063439 DOI: 10.1371/journal.pone.0201422] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 07/13/2018] [Indexed: 01/01/2023] Open
Abstract
Pressure overload of the heart leads to cardiac remodeling that may progress into heart failure, a common, morbid and mortal condition. Increased mechanistic insight into remodeling is instrumental for development of novel heart failure treatment. Cardiac remodeling comprises cardiomyocyte hypertrophic growth, extracellular matrix alterations including fibrosis, and inflammation. Fibromodulin is a small leucine-rich proteoglycan that regulates collagen fibrillogenesis. Fibromodulin is expressed in the cardiac extracellular matrix, however its role in the heart remains largely unknown. We investigated fibromodulin levels in myocardial biopsies from heart failure patients and mice, subjected fibromodulin knock-out (FMOD-KO) mice to pressure overload by aortic banding, and overexpressed fibromodulin in cultured cardiomyocytes and cardiac fibroblasts using adenovirus. Fibromodulin was 3-10-fold upregulated in hearts of heart failure patients and mice. Both cardiomyocytes and cardiac fibroblasts expressed fibromodulin, and its expression was increased by pro-inflammatory stimuli. Without stress, FMOD-KO mice showed no cardiac phenotype. Upon aortic banding, left ventricles of FMOD-KO mice developed mildly exacerbated hypertrophic remodeling compared to wild-type mice, with increased cardiomyocyte size and altered infiltration of leukocytes. There were no differences in mortality, left ventricle dilatation, dysfunction or expression of heart failure markers. Although collagen amount and cross-linking were comparable in FMOD-KO and wild-type, overexpression of fibromodulin in cardiac fibroblasts in vitro decreased their migratory capacity and expression of fibrosis-associated molecules, i.e. the collagen-cross linking enzyme lysyl oxidase, transglutaminase 2 and periostin. In conclusion, despite a robust fibromodulin upregulation in clinical and experimental heart failure, FMOD-KO mice showed a relatively mild hypertrophic phenotype. In cultured cardiac fibroblasts, fibromodulin has anti-fibrotic effects.
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Affiliation(s)
- Kine Andenæs
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Ida G. Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Oslo, Norway
- Centre for Molecular Medicine Norway, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Naiyereh Mohammadzadeh
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Christen P. Dahl
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Oslo, Norway
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Department of Cardiology, Oslo University Hospital, Oslo, Norway
| | - Jan Magnus Aronsen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Bjørknes College, Oslo, Norway
| | - Mari E. Strand
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Sheryl Palmero
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Ivar Sjaastad
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Geir Christensen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Kristin V. T. Engebretsen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Oslo, Norway
- Department of Surgery, Vestre Viken Hospital, Drammen, Norway
| | - Theis Tønnessen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Cardiac Research Center and Center for Heart Failure Research, University of Oslo, Oslo, Norway
- Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway
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24
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Yang G, Chen S, Ma A, Lu J, Wang T. Identification of the difference in the pathogenesis in heart failure arising from different etiologies using a microarray dataset. Clinics (Sao Paulo) 2017; 72:600-608. [PMID: 29160422 PMCID: PMC5666440 DOI: 10.6061/clinics/2017(10)03] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 07/19/2017] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Clinically, patients with chronic heart failure arising from different etiologies receive the same treatment. However, the prognoses of these patients differ. The purpose of this study was to elucidate whether the pathogenesis of heart failure arising from different etiologies differs. METHODS Heart failure-related dataset GSE1145 was obtained from the Gene Expression Omnibus database. Differentially expressed genes were identified using R. A protein-protein interaction network of the differentially expressed genes was constructed using Search Tool for the Retrieval of Interacting Genes. The modules in each network were analyzed by Molecular Complex Detection of Cytoscape. The Database for Annotation, Visualization and Integrated Discovery was used to obtain the functions of the modules. RESULTS Samples contained in GSE1145 were myocardial tissues from patients with dilated cardiomyopathy, familial cardiomyopathy, hypertrophic cardiomyopathy, ischemic cardiomyopathy, and post-partum cardiomyopathy. The differentially expressed genes, modules, and functions of the modules associated with different etiologies varied. Abnormal formation of extracellular matrix was overlapping among five etiologies. The change in cytoskeleton organization was specifically detected in dilated cardiomyopathy. The activation of the Wnt receptor signaling pathway was limited to hypertrophic cardiomyopathy. The change in nucleosome and chromatin assembly was associated with only familial cardiomyopathy. Germ cell migration and disrupted cellular calcium ion homeostasis were solely detected in ischemic cardiomyopathy. The change in the metabolic process of glucose and triglyceride was detected in only post-partum cardiomyopathy. CONCLUSION These results indicate that the pathogenesis of heart failure arising from different etiologies varies, which may provide molecular evidence supporting etiology-based treatment for heart failure patients.
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Affiliation(s)
- Guodong Yang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi’an Jiaotong University, China
| | - Shuping Chen
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi’an Jiaotong University, China
| | - Aiqun Ma
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi’an Jiaotong University, China
- Key Laboratory of Molecular Cardiology, Shaanxi Province, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, China
- *Corresponding authors. E-mails: /
| | - Jun Lu
- Clinical Research Center, First Affiliated Hospital of Xi’an Jiaotong University, China
| | - Tingzhong Wang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi’an Jiaotong University, China
- Key Laboratory of Molecular Cardiology, Shaanxi Province, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, China
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25
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Chen SW, Tung YC, Jung SM, Chu Y, Lin PJ, Kao WWY, Chu PH. Lumican-null mice are susceptible to aging and isoproterenol-induced myocardial fibrosis. Biochem Biophys Res Commun 2016; 482:1304-1311. [PMID: 27939890 DOI: 10.1016/j.bbrc.2016.12.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 12/06/2016] [Indexed: 10/20/2022]
Abstract
With aging and stress, the myocardium undergoes structural remodeling, often leading to fibrosis. The purpose of this study is to examine whether lumican, one of the class II small leucine-rich proteoglycans, has a protective role in cardiac remodeling and fibrosis. In attempts to elucidate the hypothesis that lumican may have a protective role in cardiac remodeling and fibrosis, we compared the cardiac phenotypes of young (3-month-old) and elder (6-month- and 12-month-old) lumican-null (Lum-/-) mice. Extra-cellular matrix remodeling and apoptosis are examined to determine the roles of lumican on age-dependent cardiac fibrosis induced by isoproterenol. Compared to wild type littermates, Lum-/- mice exhibited higher mortality due to significantly impaired systolic function, which was associated with an increase of atrial natriuretic peptide (ANP) secreted by the ventricles in response to excessive stretching of myocytes. Masson's Trichrome and silver stains showed significantly more severe ventricle fibrosis in Lum-/- mice. Interestingly, rate of cell death mediated via apoptosis illustrated by the expression of caspase 3 and TUNEL assay was lower in Lum-/- mice after isoproterenol infusion. In addition, Lum-/- mice exhibited higher levels of TGF-β, collagen I/III, and membrane-type matrix metalloproteinase-1 (MT1-MMP/MMP-14) during cardiac remodeling. This study shows that alternations of lumican might be implicated in the pathogenesis of cardiac fibrosis and suggests lumican as novel targets for cardiac fibrosis therapy. Further studies are required to define the mechanism by which lumican modulates cardiac remodeling.
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Affiliation(s)
- Shao-Wei Chen
- Divisiont of Thoracic and Cardiovascular Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University; Taiwan
| | - Ying-Chang Tung
- The Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan
| | - Shih-Ming Jung
- Department of Pathology, Ophthalmology, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taipei, Taiwan
| | - Yen Chu
- Divisiont of Thoracic and Cardiovascular Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan
| | - Pyng-Jing Lin
- Divisiont of Thoracic and Cardiovascular Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan
| | - Winston W-Y Kao
- Crawley Vision Research Center, Department of Ophthalmology, College of Medicine, University of Cincinnati, Cincinnati, OH 5267-0838, USA
| | - Pao-Hsien Chu
- The Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan; Healthcare Center, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan; Heart Failure Center, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan.
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26
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Liu Y, Lu J, Xu G, Wei J, Zhang Z, Li X. Tuning the conductivity and inner structure of electrospun fibers to promote cardiomyocyte elongation and synchronous beating. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:865-74. [DOI: 10.1016/j.msec.2016.07.069] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 07/16/2016] [Accepted: 07/26/2016] [Indexed: 01/25/2023]
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27
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Zhao Y, Li X, Xu X, He Z, Cui L, Lv X. Lumican alleviates hypertrophic scarring by suppressing integrin-FAK signaling. Biochem Biophys Res Commun 2016; 480:153-159. [PMID: 27693693 DOI: 10.1016/j.bbrc.2016.09.159] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Accepted: 09/28/2016] [Indexed: 01/15/2023]
Abstract
Hypertrophic scarring (HS) is an overcompensation of wound healing that increases the risk of cosmetic disfigurement and functional impairment. No gold standard has been established for the treatment or prevention of HS. Our study aims to elucidate the expression and function of lumican in the pathogenesis of HS as well as the underlying mechanism involved in this procedure. An animal model of HS (rabbit ear) was established, and the Ad-lumican vectors were locally injected. Primary fibroblasts isolated from patients with hypertrophic burn scars were used in vitro. Histological and molecular changes in HS pathogenesis were evaluated. The results showed that lumican is significantly reduced in HS tissues and fibroblasts from HS patients as compared to normal skin or cells. Lumican levels were further suppressed in response to TGF-β stimulation. However, lumican upregulation effectively thinned the scar area and inhibited fibroblast proliferation and the cell cycle. Meanwhile, Ad-lumican administration suppressed the deposition of extracellular matrix, such as collagen and CTGF. Ad-lumican injected animals or fibroblasts presented comparable integrin α2β1 expression while greatly reduced phosphorylation of FAK compared to the negative control. Moreover, Ad-lumican administration largely enhanced the binding of lumican to integrin α2β1 and may thus inhibit the signaling propagation of collagen-integrin α2β1. Overall, the restoration of lumican levels contributed to suppressing the HS progression by inhibiting collagen-integrin α2β1-FAK signaling.
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Affiliation(s)
- Yuqian Zhao
- Department of Plastic Surgery, Tangdu Hospital, Fourth Military Medical University, Shaan xi, Xi'an 710038, China
| | - Xueyong Li
- Department of Plastic Surgery, Tangdu Hospital, Fourth Military Medical University, Shaan xi, Xi'an 710038, China.
| | - Xiaoli Xu
- Department of Plastic Surgery, Tangdu Hospital, Fourth Military Medical University, Shaan xi, Xi'an 710038, China
| | - Zhi He
- Department of Plastic Surgery, Tangdu Hospital, Fourth Military Medical University, Shaan xi, Xi'an 710038, China
| | - Lei Cui
- Department of Plastic Surgery, Tangdu Hospital, Fourth Military Medical University, Shaan xi, Xi'an 710038, China
| | - Xiaoxing Lv
- Department of Plastic Surgery, Tangdu Hospital, Fourth Military Medical University, Shaan xi, Xi'an 710038, China
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Barallobre-Barreiro J, Lynch M, Yin X, Mayr M. Systems biology-opportunities and challenges: the application of proteomics to study the cardiovascular extracellular matrix. Cardiovasc Res 2016; 112:626-636. [PMID: 27635058 PMCID: PMC5157133 DOI: 10.1093/cvr/cvw206] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 08/31/2016] [Accepted: 09/09/2016] [Indexed: 12/29/2022] Open
Abstract
Systems biology approaches including proteomics are becoming more widely used in cardiovascular research. In this review article, we focus on the application of proteomics to the cardiac extracellular matrix (ECM). ECM remodelling is a hallmark of many cardiovascular diseases. Proteomic techniques using mass spectrometry (MS) provide a platform for the comprehensive analysis of ECM proteins without a priori assumptions. Proteomics overcomes various constraints inherent to conventional antibody detection. On the other hand, studies that use whole tissue lysates for proteomic analysis mask the identification of the less abundant ECM constituents. In this review, we first discuss decellularization-based methods that enrich for ECM proteins in cardiac tissue, and how targeted MS allows for accurate protein quantification. The second part of the review will focus on post-translational modifications including hydroxylation and glycosylation and on the release of matrix fragments with biological activity (matrikines), all of which can be interrogated by proteomic techniques.
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Affiliation(s)
| | - Marc Lynch
- King's British Heart Foundation Centre, King's College London, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Xiaoke Yin
- King's British Heart Foundation Centre, King's College London, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Manuel Mayr
- King's British Heart Foundation Centre, King's College London, 125 Coldharbour Lane, London SE5 9NU, UK
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Dupuis LE, Doucette L, Rice AK, Lancaster AE, Berger MG, Chakravarti S, Kern CB. Development of myotendinous-like junctions that anchor cardiac valves requires fibromodulin and lumican. Dev Dyn 2016; 245:1029-42. [PMID: 27503167 DOI: 10.1002/dvdy.24435] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/28/2016] [Accepted: 07/24/2016] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND There are many patients that exhibit connective tissue related cardiac malformations but do not have mutations in collagen genes. The Small Leucine Rich Proteoglycans (SLRP) fibromodulin (FMOD) and lumican (LUM) bind collagen and regulate fibril assembly in other biological contexts. RESULTS FMOD deficient mice and double deficient FMOD; LUM mice exhibited anomalies in regions where cardiac valve tissue interdigitates with adjacent muscle for support. Ectopic connective and/or myocardial tissue(s) was associated with the more severe cardiac valve anomalies in FMOD; LUM deficient mice. At postnatal day 0 (P0) there was an increase in the mesenchymal cell number in the regions where valve cusps anchor in FMOD; LUM deficient mice compared to WT. The cardiac valve anomalies correlated with the highest levels of FMOD expression in the heart and also where myotendinous junctions (MTJ) components biglycan, collagen type I alpha 1, and collagen type VI, are also localized. CONCLUSIONS The postnatal assembly of the collagen-rich ECM in regions where cardiac valves anchor, that we have designated 'myotendinous-like junctions' (MTLJ) requires the SLRPs FMOD and LUM. Moreover, FMOD and LUM may facilitate mesenchymal cell differentiation in late stages of cardiac valve development. Developmental Dynamics 245:1029-1042, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Loren E Dupuis
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina
| | - Lorna Doucette
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina
| | - A Kittrell Rice
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina
| | - Ashton E Lancaster
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina
| | - Matthew G Berger
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina
| | - Shukti Chakravarti
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Christine B Kern
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina.
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Chen R, Yu WH. Matrix Proteins and Proteinases Network in Human Cardiovascular Diseases Explored By Cytoscape. RESEARCH IDEAS AND OUTCOMES 2016. [DOI: 10.3897/rio.2.e9617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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31
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Tonniges JR, Albert B, Calomeni EP, Roy S, Lee J, Mo X, Cole SE, Agarwal G. Collagen Fibril Ultrastructure in Mice Lacking Discoidin Domain Receptor 1. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2016; 22:599-611. [PMID: 27329311 PMCID: PMC5174982 DOI: 10.1017/s1431927616000787] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The quantity and quality of collagen fibrils in the extracellular matrix (ECM) have a pivotal role in dictating biological processes. Several collagen-binding proteins (CBPs) are known to modulate collagen deposition and fibril diameter. However, limited studies exist on alterations in the fibril ultrastructure by CBPs. In this study, we elucidate how the collagen receptor, discoidin domain receptor 1 (DDR1) regulates the collagen content and ultrastructure in the adventitia of DDR1 knock-out (KO) mice. DDR1 KO mice exhibit increased collagen deposition as observed using Masson's trichrome. Collagen ultrastructure was evaluated in situ using transmission electron microscopy, scanning electron microscopy, and atomic force microscopy. Although the mean fibril diameter was not significantly different, DDR1 KO mice had a higher percentage of fibrils with larger diameter compared with their wild-type littermates. No significant differences were observed in the length of D-periods. In addition, collagen fibrils from DDR1 KO mice exhibited a small, but statistically significant, increase in the depth of the fibril D-periods. Consistent with these observations, a reduction in the depth of D-periods was observed in collagen fibrils reconstituted with recombinant DDR1-Fc. Our results elucidate how DDR1 modulates collagen fibril ultrastructure in vivo, which may have important consequences in the functional role(s) of the underlying ECM.
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Affiliation(s)
- Jeffrey R. Tonniges
- Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA
| | - Benjamin Albert
- Biomedical Engineering Department, The Ohio State University, Columbus, OH 43210, USA
| | - Edward P. Calomeni
- Department of Pathology, The Ohio State University, Columbus, OH 43210, USA
| | - Shuvro Roy
- David Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Joan Lee
- David Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Xiaokui Mo
- Center for Biostatistics, The Ohio State University, Columbus, OH 43210, USA
| | - Susan E. Cole
- Department of Molecular Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Gunjan Agarwal
- Biomedical Engineering Department, The Ohio State University, Columbus, OH 43210, USA
- David Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA
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32
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Loiselle D, Ramchandra R. A counterview of 'An investigation of the false discovery rate and the misinterpretation of p-values' by Colquhoun (2014). ROYAL SOCIETY OPEN SCIENCE 2015; 2:150217. [PMID: 26361549 PMCID: PMC4555854 DOI: 10.1098/rsos.150217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 06/30/2015] [Indexed: 06/05/2023]
Affiliation(s)
- D. Loiselle
- Department of Physiology, The University of Auckland, Auckland, New Zealand
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
| | - R. Ramchandra
- Department of Physiology, The University of Auckland, Auckland, New Zealand
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