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Qiao W, Xiao YJ, Wang X, Sun LJ, Chen YX, Ren WD. A novel model of constrictive pericarditis associated with myocardial fibrosis in rats. Clin Exp Pharmacol Physiol 2021; 48:563-574. [PMID: 33349990 DOI: 10.1111/1440-1681.13449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 11/29/2020] [Indexed: 12/15/2022]
Abstract
An efficient animal model is fundamental for studies on the underlying mechanisms of constrictive pericarditis (CP). A novel CP rat model was established by pericardial injection composing of lipopolysaccharides (LPS) and talcum powder without thoracotomy. Pathological changes were confirmed by histological staining. E-flow Doppler of mitral valve, tissue Doppler E' in the medial mitral annular (E'sep ) and the lateral mitral annular (E'lat ) were measured to assess ventricular filling function. Circumferential, longitudinal, and radial strains (SC, SL and SR) and the respective strain rates (SrC, SrL and SrR) were analyzed in interventricular septum (IVS) and left ventricular free wall (LVFW). Rat cardiac fibroblasts (CFs) were treated with LPS. The activation of transforming growth factor β1 (TGF-β1) was confirmed by Q-PCR and western blot assays. Thickening of pericardium and fibrosis in pericardium and subepicardial myocardium were showed in the model group. Diastolic dysfunction in the CP group was indicated by decreased E'lat and E'lat /E'sep , increased E/E'lat , decreased EFW of SrC and SrL, increased AIVS and decreased E/A of SrC, SrL and SrR. Systolic dysfunction was indicated by decreased SCFW and SLFW in CP rats. The levels of TGF-β1, p-Smad2/3, α-smooth muscle actin (α-SMA), and collagen-I/III (COL-I/III) were increased in the CP group. The increased TGF-β1 that induced by LPS activated and phosphorylated Smad2/3 resulting in the secretion of α-SMA and COL-I/III. This model is of vital importance in studying the pathogenesis of CP.
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Affiliation(s)
- Wei Qiao
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yang-Jie Xiao
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xin Wang
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, China
| | - Li-Juan Sun
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, China
- Department of Ultrasound, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Yi-Xin Chen
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wei-Dong Ren
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, China
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Bonaventura A, Vecchié A, Mauro AG, Brucato AL, Imazio M, Abbate A. An update on the pathophysiology of acute and recurrent pericarditis. Panminerva Med 2020; 63:249-260. [PMID: 33337127 DOI: 10.23736/s0031-0808.20.04205-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Pericarditis is an inflammatory disease of the pericardium. Progress has been done in recent years in the understanding of its pathophysiology. In particular, pre-clinical and clinical studies have contributed to increasing our knowledge on the role of interleukin (IL)-1 and NLRP3 (NACHT, leucine- rich repeat, and pyrin domain- containing protein 3) inflammasome. Based on current evidence, pericarditis should be considered as an inflammatory reaction to various stimuli, including chemical/physical, infectious, or ischemic ones, with a viral infection being a common etiology. Interaction of pathogens or irritants with toll-like receptor (TLRs) and stimulation of IL-1 receptor by IL-1α and IL-1β lead to an increased transcription of pro-inflammatory genes, including those needed for NLRP3 inflammasome assembly. This pathway is confirmed indirectly by the beneficial effect of colchicine (an indirect NLRP3 inflammasome inhibitor) and IL-1 blockers in patients with recurrent pericarditis. More recently, a direct evidence of the NLRP3 inflammasome within the inflamed pericardium has been provided as well. It may, however, occur that selfantigens on the surface of mesothelial cells or microbial peptides may stimulate autoreactive T cells along with B cells producing anti-heart antibodies, although less evidence is available on this. Some uncertainties still remain about the role of neutrophils, neutrophil extracellular traps (NETs), and pericardial interstitial cells in recurrent and constrictive pericarditis. Unraveling these aspects might have a direct impact on the development of novel targeted therapies, especially considering the increasing number of drugs targeting NETs.
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Affiliation(s)
- Aldo Bonaventura
- Virginia Commonwealth University, Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Richmond, VA, USA - .,First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy - .,Internal Medicine Unit, Department of Medicine and Surgery, University of Insubria-Ospedale Di Circolo di Varese, ASST Dei Sette Laghi, Varese, Italy -
| | - Alessandra Vecchié
- Virginia Commonwealth University, Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Richmond, VA, USA.,Internal Medicine Unit, Department of Medicine and Surgery, University of Insubria-Ospedale Di Circolo di Varese, ASST Dei Sette Laghi, Varese, Italy
| | - Adolfo G Mauro
- Virginia Commonwealth University, Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Richmond, VA, USA
| | - Antonio L Brucato
- Department of Biomedical and Clinical Sciences, Fatebenefratelli Hospital, Università di Milano, Milan, Italy
| | - Massimo Imazio
- University Cardiology, AOU Città della Salute e della Scienza di Torino, Torino, Italy
| | - Antonio Abbate
- Virginia Commonwealth University, Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Richmond, VA, USA
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Chen Y, Sun F, Zhang Y, Song G, Qiao W, Zhou K, Ren S, Zhao Q, Ren W. Comprehensive molecular characterization of circRNA-associated ceRNA network in constrictive pericarditis. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:549. [PMID: 32411772 PMCID: PMC7214901 DOI: 10.21037/atm-20-2912] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Aberrant gene expression occurs in almost all diseases including constrictive pericarditis (CP). However, the dysregulation of genes underlying the CP remains unclear. This study aims to investigate the potential molecular mechanisms underlying CP and screen hub genes critical for the pathogenesis of CP. Methods Differentially expressed mRNAs, miRNAs, lncRNAs and circRNAs in pericardial tissues were screened using RNA-seq in CP patients and controls. Furthermore, functional annotation analysis and protein-protein interaction (PPI) network were carried out to investigate the potential key pathways and identify hub genes in CP. Subsequently, a ceRNA network was established and the key circRNAs were determined by Gene Set Enrichment Analysis (GSEA). Finally, the corresponding RNA-seq results were confirmed and validated with a quantitative real time-PCR (qRT-PCR). Results Functional annotation analysis revealed that differentially expressed mRNAs (DEMs) mainly participated in inflammatory response related pathways and the 10 top genes with the highest degree in PPI network were considered as the hub genes. In addition, a total of 377 regulatory relationships among the differentially expressed genes (DEGs) could be constructed, from which a subsequent ceRNA network was also established, while the circRNAs were further validated with qRT-PCR and the key biological pathways were identified using GSEA as well. Conclusions The genes determined to have altered expression levels in CP may participate in a number of biological signaling processes leading to inflammation and fibrosis frequently encountered in CP, and, therefore, our novel findings may provide an insight into the pathogenesis, molecular biomarkers, and potential therapeutic targets in CP.
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Affiliation(s)
- Yixin Chen
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Feifei Sun
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Yong Zhang
- Department of Cardiovascular Surgery, General Hospital of Northern Military Area, Shenyang 110016, China
| | - Guang Song
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Wei Qiao
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Ke Zhou
- Department of Cardiac Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Sihua Ren
- Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Qian Zhao
- Department of Pediatric Urology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Weidong Ren
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang 110004, China
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Bonaventura A, Montecucco F. Inflammation and pericarditis: Are neutrophils actors behind the scenes? J Cell Physiol 2018; 234:5390-5398. [PMID: 30417336 DOI: 10.1002/jcp.27436] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 08/28/2018] [Indexed: 12/11/2022]
Abstract
The morbidity of acute pericarditis is increasing over time impacting on patient quality of life. Recent clinical trials focused especially on clinical aspects, with a modest interest in pathophysiological mechanisms. This narrative review, based on papers in English language obtained via PubMed up to April 2018, aims at focusing on the role of the innate immunity in pericarditis and discussing future potential therapeutic strategies impacting on disease pathophysiology. In developed countries, most cases of pericarditis are referred to as idiopathic, although etiological causes have been described, with autoreactive/lymphocytic, malignant, and infectious ones as the most frequent causes. Apart the known impairment of the adaptive immunity, recently a large body evidence indicated the central role of the innate immune system in the pathogenesis of recurrent pericarditis, starting from similarities with autoinflammatory diseases. Accordingly, the "inflammasome" has been shown to behave as an important player in pericarditis development. Similarly, the beneficial effect of colchicine in recurrent pericarditis confirms that neutrophils are important effectors as colchicine, which can block neutrophil chemotaxis, interferes with neutrophil adhesion and recruitment to injured tissues and abrogate superoxide production. Anyway, the role of the adaptive immune system in pericarditis cannot be reduced to a black or white issue as mechanisms often overlap. Therefore, we believe that more efficient therapeutic strategies have to be investigated by targeting neutrophil-derived mediators (such as metalloproteinases) and disentangling the strict interplay between neutrophils and platelets. In this view, some progress has been done by using the recombinant human interleukin-1 receptor antagonist anakinra.
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Affiliation(s)
- Aldo Bonaventura
- Department of Internal Medicine, First Clinic of Internal Medicine, University of Genoa, Genoa, Italy
| | - Fabrizio Montecucco
- Department of Internal Medicine, First Clinic of Internal Medicine, University of Genoa, Genoa, Italy
- Ospedale Policlinico San Martino, Genoa, Italy
- Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
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Ramasamy V, Mayosi BM, Sturrock ED, Ntsekhe M. Established and novel pathophysiological mechanisms of pericardial injury and constrictive pericarditis. World J Cardiol 2018; 10:87-96. [PMID: 30344956 PMCID: PMC6189073 DOI: 10.4330/wjc.v10.i9.87] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/06/2018] [Accepted: 04/22/2018] [Indexed: 02/06/2023] Open
Abstract
This review article aims to: (1) discern from the literature the immune and inflammatory processes occurring in the pericardium following injury; and (2) to delve into the molecular mechanisms which may play a role in the progression to constrictive pericarditis. Pericarditis arises as a result of a wide spectrum of pathologies of both infectious and non-infectious aetiology, which lead to various degrees of fibrogenesis. Current understanding of the sequence of molecular events leading to pathological manifestations of constrictive pericarditis is poor. The identification of key mechanisms and pathways common to most fibrotic events in the pericardium can aid in the design and development of novel interventions for the prevention and management of constriction. We have identified through this review various cellular events and signalling cascades which are likely to contribute to the pathological fibrotic phenotype. An initial classical pattern of inflammation arises as a result of insult to the pericardium and can exacerbate into an exaggerated or prolonged inflammatory state. Whilst the implication of major drivers of inflammation and fibrosis such as tumour necrosis factor and transforming growth factor β were foreseeable, the identification of pericardial deregulation of other mediators (basic fibroblast growth factor, galectin-3 and the tetrapeptide Ac-SDKP) provides important avenues for further research.
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Affiliation(s)
- Vinasha Ramasamy
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory 7925, South Africa
- Department of Integrative Biomedical Sciences, University of Cape Town, Observatory 7925, South Africa
| | - Bongani M Mayosi
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory 7925, South Africa
- Division of Cardiology, University of Cape Town, Observatory 7925, South Africa
| | - Edward D Sturrock
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory 7925, South Africa
- Department of Integrative Biomedical Sciences, University of Cape Town, Observatory 7925, South Africa
| | - Mpiko Ntsekhe
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Observatory 7925, South Africa
- Division of Cardiology, University of Cape Town, Observatory 7925, South Africa
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Han L, Li X, Zhang G, Xu Z, Gong D, Lu F, Liu X. Pericardial interstitial cell senescence responsible for pericardial structural remodeling in idiopathic and postsurgical constrictive pericarditis. J Thorac Cardiovasc Surg 2017; 154:966-975.e4. [PMID: 28456362 DOI: 10.1016/j.jtcvs.2017.03.115] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 03/04/2017] [Accepted: 03/20/2017] [Indexed: 01/14/2023]
Abstract
OBJECTIVE Idiopathic and postsurgical constrictive pericarditis is characterized by pericardial structural remodeling that involves fibrosis, calcification, and inflammation. This study aimed to determine whether cell senescence was responsible for pericardial structural remodeling. METHODS Pericardial interstitial cells derived from patients with idiopathic or postsurgical pericarditis (pericarditis cells) were harvested. Timing of senescence and differences in telomere length were compared between age- and sex-matched controls (nonpericarditis cells). Pericardial interstitial cells derived from normal pericardia were serially passaged until senescence (senescent cells). Apoptosis, collagen matrix, calcium deposition, chemoattractant properties, gene expression profiles, and paracrine effects of senescent cells were compared with nonsenescent cells of passage 2 (nonsenescent cells). RESULTS Pericarditis cells displayed senescent changes, including short telomere length, large flattened cell sizes, positive staining for senescence-associated β-galactosidase, and limited growth capacity. These senescent cells were resistant to apoptosis, produced more collagen matrix, deposited more calcium, and attracted more monocytes/lymphocytes than the nonsenescent cells. A cluster of genes involved in extracellular matrix deposition (connective tissue growth factor, fibronectin, collagen type I, collagen type III, and tissue inhibitors of metalloproteinase-1), calcium deposition (osteopontin, bone sialoprotein, osteonectin, and matrix Gla protein), and inflammatory cell recruitment (interleukin-6, chemoattractant protein-1, and tumor necrosis factor-α) were upregulated in senescent cells, whereas extracellular matrix-degrading enzyme (metalloproteinase-1 and metalloproteinase-3) was downregulated. Furthermore, senescent cells had the ability to promote the proliferation, differentiation, and senescence of neighboring cells. CONCLUSIONS These findings suggest that senescent cells have characteristics promoting pericardial structural remodeling, but further work is needed to establish causation.
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Affiliation(s)
- Lin Han
- Institute of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xin Li
- Institute of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Guanxin Zhang
- Institute of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhiyun Xu
- Institute of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Dejun Gong
- Institute of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Fanglin Lu
- Institute of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xiaohong Liu
- Institute of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
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Pacini D, Murana G, Pantaleo A. A "muscled" fight against aortic dissection: Knowledge is the key to success. J Thorac Cardiovasc Surg 2016; 152:830-1. [PMID: 27423337 DOI: 10.1016/j.jtcvs.2016.06.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 06/16/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Davide Pacini
- Department of Cardiac Surgery, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy.
| | - Giacomo Murana
- Department of Cardiac Surgery, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Antonio Pantaleo
- Department of Cardiac Surgery, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
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Martin S, Lin H, Ejimadu C, Lee T. Tissue-nonspecific alkaline phosphatase as a target of sFRP2 in cardiac fibroblasts. Am J Physiol Cell Physiol 2015; 309:C139-47. [PMID: 25972450 DOI: 10.1152/ajpcell.00009.2015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 05/04/2015] [Indexed: 01/11/2023]
Abstract
Recent studies of myocardial infarction in secreted Frizzled-related protein 2 (sFRP2) knockout mice and our hamster heart failure therapy based on sFRP2 blockade have established sFRP2 as a key profibrotic cytokine in the heart. The failing hamster heart is marked by prominent fibrosis and calcification with elevated expression of sFRP2. Noting the involvement of tissue-nonspecific alkaline phosphatase (TNAP) in bone mineralization and vascular calcification, we determined whether sFRP2 might be an upstream regulator of TNAP. Biochemical assays revealed an approximately twofold increase in the activity of TNAP and elevated levels of inorganic phosphate (Pi) in the failing heart compared with the normal heart. Neither was this change detected in the liver or hamstring muscle nor was it associated with systemic hyperphosphatemia. TNAP was readily cloned from the hamster heart and upon overexpression increased the level of extracellular but not intracellular Pi, which is consistent with the cell surface location of the ectoenzyme. In line with the previous demonstration that sFRP2 blockade attenuated fibrosis, we show here that the therapy downregulated TNAP. This in vivo finding is corroborated by the in vitro study showing that cultured cardiac fibroblasts treated with recombinant sFRP2 protein exhibited progressive increase in the expression and activity of TNAP, which was completely abrogated by cycloheximide or tunicamycin. Induction of TNAP by sFRP2 is restricted to cardiac fibroblasts among the multiple cell types examined, and was not observed with sFRP4. The current work indicates that sFRP2 may promote cardiac fibrocalcification through coordinate activation of tolloid-like metalloproteinases and TNAP.
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Affiliation(s)
- Sean Martin
- Department of Biochemistry and Department of Biomedical Engineering, University at Buffalo, Buffalo, New York
| | - Huey Lin
- Department of Biochemistry and Department of Biomedical Engineering, University at Buffalo, Buffalo, New York
| | - Chukwuemeka Ejimadu
- Department of Biochemistry and Department of Biomedical Engineering, University at Buffalo, Buffalo, New York
| | - Techung Lee
- Department of Biochemistry and Department of Biomedical Engineering, University at Buffalo, Buffalo, New York
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Chong JJ, Forte E, Harvey RP. Developmental origins and lineage descendants of endogenous adult cardiac progenitor cells. Stem Cell Res 2014; 13:592-614. [DOI: 10.1016/j.scr.2014.09.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 09/24/2014] [Accepted: 09/26/2014] [Indexed: 12/30/2022] Open
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Epicardial Origin of Resident Mesenchymal Stem Cells in the Adult Mammalian Heart. J Dev Biol 2014. [DOI: 10.3390/jdb2020117] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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