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PARIS-DJ-1 Interaction Regulates Mitochondrial Functions in Cardiomyocytes, Which Is Critically Important in Cardiac Hypertrophy. Mol Cell Biol 2020; 41:MCB.00106-20. [PMID: 33077496 DOI: 10.1128/mcb.00106-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 10/05/2020] [Indexed: 11/20/2022] Open
Abstract
Mitochondrial dysfunction is one of the major pathological attributes of cardiac hypertrophy and is associated with reduced expression of PGC1α in cardiomyocytes. However, the transcriptional regulation of PGC1α remains elusive. Here, we show that parkin interacting substrate (PARIS), a KRAB zinc finger protein, prevented PGC1α transcription despite the induction of cardiomyocytes with hypertrophic stimuli. Moreover, PARIS expression and its nuclear localization are enhanced in hypertrophy both in vitro and in vivo Knocking down PARIS resulted in mitochondrial biogenesis and improved respiration and other biochemical features that were compromised during hypertrophy. Furthermore, a PARIS-dependent proteome showed exclusive binding of a deSUMOylating protein called DJ-1 to PARIS in control cells, while this interaction is completely abrogated in hypertrophied cells. We further demonstrate that proteasomal degradation of DJ-1 under oxidative stress led to augmented PARIS SUMOylation and consequent repression of PGC1α promoter activity. SUMOylation-resistant mutants of PARIS failed to repress PGC1α, suggesting a critical role for PARIS SUMOylation in hypertrophy. The present study, therefore, proposes a novel regulatory pathway where DJ-1 acts as an oxidative stress sensor and contributes to the feedback loop governing PARIS-mediated mitochondrial function.
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Ethaeb AM, Mohammad MA, Madkhali Y, Featherby S, Maraveyas A, Greenman J, Ettelaie C. Accumulation of tissue factor in endothelial cells promotes cellular apoptosis through over-activation of Src1 and involves β1-integrin signalling. Apoptosis 2020; 25:29-41. [PMID: 31654241 PMCID: PMC6965344 DOI: 10.1007/s10495-019-01576-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Accumulation of tissue factor (TF) within cells leads to cellular apoptosis mediated through p38 and p53 pathways. In this study, the involvement of Src1 in the induction of TF-mediated cell apoptosis, and the mechanisms of Src1 activation were investigated. Human coronary artery endothelial cell (HCAEC) were transfected with plasmids to express the wild-type TF (TFWt-tGFP), or a mutant (Ser253 → Ala) which is incapable of being released from cells (TFAla253-tGFP). The cells were then activated with PAR2-agonist peptide (SLIGKV-NH) and the phosphorylation of Src and Rac, and also the kinase activity of Src were assessed. Transfected cells were also pre-incubated with pp60c Src inhibitor, FAK inhibitor-14, or a blocking anti-β1-integrin antibody prior to activation and the phosphorylation of p38 as well as cellular apoptosis was examined. Finally, cells were co-transfected with the plasmids, together with a Src1-specific siRNA, activated as above and the cellular apoptosis measured. Activation of PAR2 lead to the phosphorylation of Src1 and Rac1 proteins at 60 min regardless of TF expression. Moreover, Src phosphorylation and kinase activity was prolonged up to 100 min in the presence of TF, with a significantly higher magnitude when the non-releasable TFAla253-tGFP was expressed in HCAEC. Inhibition of Src with pp60c, or suppression of Src1 expression in cells, reduced p38 phosphorylation and prevented cellular apoptosis. In contrast, inhibition of FAK had no significant influence on Src kinase activity or cellular apoptosis. Finally, pre-incubation of cells with an inhibitory anti-β1-integrin antibody reduced both Src1 activation and cellular apoptosis. Our data show for the first time that the over-activation of Src1 is a mediator of TF-induced cellular apoptosis in endothelial cells through a mechanism that is dependent on its interaction with β1-integrin.
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Affiliation(s)
- Ali M Ethaeb
- Biomedical Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK.,College of Veterinary Medicine, University of Wasit, Kut, Iraq
| | | | - Yahya Madkhali
- Biomedical Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK.,Department of Medical Laboratories, College of Applied Medical Sciences, Majmaah University, Majmaah, Kingdom of Saudi Arabia
| | - Sophie Featherby
- Biomedical Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK
| | - Anthony Maraveyas
- Division of Cancer-Hull York Medical School, University of Hull, Cottingham Road, Hull, HU6 7RX, UK
| | - John Greenman
- Biomedical Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK
| | - Camille Ettelaie
- Biomedical Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
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Madkhali Y, Featherby S, Collier ME, Maraveyas A, Greenman J, Ettelaie C. The Ratio of Factor VIIa:Tissue Factor Content within Microvesicles Determines the Differential Influence on Endothelial Cells. TH OPEN 2019; 3:e132-e145. [PMID: 31259295 PMCID: PMC6598090 DOI: 10.1055/s-0039-1688934] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 04/10/2019] [Indexed: 02/07/2023] Open
Abstract
Tissue factor (TF)-positive microvesicles from various sources can promote cellular proliferation or alternatively induce apoptosis, but the determining factors are unknown. In this study the hypothesis that the ratio of fVIIa:TF within microvesicles determines this outcome was examined. Microvesicles were isolated from HepG2, BxPC-3, 786-O, MDA-MB-231, and MCF-7 cell lines and microvesicle-associated fVIIa and TF antigen and activity levels were measured. Human coronary artery endothelial cells (HCAECs) were incubated with these purified microvesicles, or with combinations of fVIIa-recombinant TF, and cell proliferation/apoptosis was measured. Additionally, by expressing mCherry-PAR2 on HCAEC surface, PAR2 activation was quantified. Finally, the activation of PAR2 on HCAEC or the activities of TF and fVIIa in microvesicles were blocked prior to addition of microvesicles to cells. The purified microvesicles exhibited a range of fVIIa:TF ratios with HepG2 and 786-O cells having the highest (54:1) and lowest (10:1) ratios, respectively. The reversal from proapoptotic to proliferative was estimated to occur at a fVIIa:TF molar ratio of 15:1, but HCAEC could not be rescued at higher TF concentrations. The purified microvesicles induced HCAEC proliferation or apoptosis according to this ruling. Blocking PAR2 activation on HCAEC, or inhibiting fVIIa or TF-procoagulant function on microvesicles prevented the influence on HCAEC. Finally, incubation of HCAEC with recombinant TF resulted in increased surface exposure of fVII. The induction of cell proliferation or apoptosis by TF-positive microvesicles is dependent on the ratio of fVIIa:TF and involves the activation of PAR2. At lower TF concentrations, fVIIa can counteract the proapoptotic stimulus and induce proliferation.
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Affiliation(s)
- Yahya Madkhali
- Department of Biomedical Sciences, University of Hull, Hull, United Kingdom.,Department of Medical Laboratories, College of Applied Medical Sciences, Majmaah University, KSA, Al Majmaah, Saudi Arabia
| | - Sophie Featherby
- Department of Biomedical Sciences, University of Hull, Hull, United Kingdom
| | - Mary E Collier
- Department of Cardiovascular Sciences, University of Leicester, Glenfield General Hospital, Leicester, United Kingdom
| | - Anthony Maraveyas
- Division of Cancer-Hull York Medical School, University of Hull, Hull, United Kingdom
| | - John Greenman
- Department of Biomedical Sciences, University of Hull, Hull, United Kingdom
| | - Camille Ettelaie
- Department of Biomedical Sciences, University of Hull, Hull, United Kingdom
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Leary PJ. Causality, Correlation, and Cardiac Disease: Does Smoking Cause Cardiac Hypertrophy and Diastolic Dysfunction? Circ Cardiovasc Imaging 2018; 9:e005441. [PMID: 27625350 DOI: 10.1161/circimaging.116.005441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Peter J Leary
- From the Department of Medicine, University of Washington, Seattle.
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Maraveyas A, ElKeeb A, Collier M, Ettelaie C. Accumulation of tissue factor in endothelial cells induces cell apoptosis, mediated through p38 and p53 activation. Thromb Haemost 2017; 114:364-78. [DOI: 10.1160/th14-09-0795] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 03/03/2015] [Indexed: 12/26/2022]
Abstract
SummaryWe previously reported that high levels of tissue factor (TF) can induce cellular apoptosis in endothelial cells. In this study, TF-mediated mechanisms of induction of apoptosis were explored. Endothelial cells were transfected to express wild-type TF. Additionally, cells were transfected to express Asp253-substituted, or Ala253-substitued TF to enhance or prevent TF release, respectively. Alternatively, cells were pre-incubated with TF-rich and TF-poor microvesicles. Cell proliferation, apoptosis and the expression of cyclin D1, p53, bax and p21 were measured following activation of cells with PAR2-agonist peptide. Greatest levels of cell proliferation and cyclin D1 expression were observed in cells expressing wild-type or Asp253-substituted TF. In contrast, increased cellular apoptosis was observed in cells expressing Ala253-substituted TF, or cells pre-incubated with TF-rich microvesicles. The level of p53 protein, p53-phosphorylation at ser33, p53 nuclear localisation and transcriptional activity, but not p53 mRNA, were increased in cells expressing wild-type and Ala253-substituted TF, or in cells pre-incubated with TF-rich microvesicles. However, the expression of bax and p21 mRNA, and Bax protein were only increased in cells pre-incubated with TF-rich microvesicle and in cells expressing Ala253-substituted TF. Inhibition of the transcriptional activity of p53 using pifithrin-α suppressed the expression of Bax. Finally, siRNA- mediated suppression of p38α, or inhibition using SB202190 significantly reduced the p53 protein levels, p53 nuclear localisation and transcriptional activity, suppressed Bax expression and prevented cellular apoptosis. In conclusion, accumulation of TF within endothelial cells, or sequestered from the surrounding can induce cellular apoptosis through mechanisms mediated by p38, and involves the stabilisation of p53.
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Banerjee P, Chander V, Bandyopadhyay A. Balancing functions of annexin A6 maintain equilibrium between hypertrophy and apoptosis in cardiomyocytes. Cell Death Dis 2015; 6:e1873. [PMID: 26335715 PMCID: PMC4650436 DOI: 10.1038/cddis.2015.231] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 07/09/2015] [Accepted: 07/10/2015] [Indexed: 01/11/2023]
Abstract
Pathological cardiac hypertrophy is a major risk factor associated with heart failure, a state concomitant with increased cell death. However, the mechanism governing progression of hypertrophy to apoptosis at the single-cell level remains elusive. Here, we demonstrate annexin A6 (Anxa6), a calcium (Ca(2+))-dependent phospholipid-binding protein critically regulates the transition of chronic hypertrophied cardiomyocytes to apoptosis. Treatment of the H9c2(2-1) cardiomyocytes with hypertrophic agonists upregulates and relocalizes Anxa6 with increased cytosolic punctate appearance. Live cell imaging revealed that chronic exposure to hypertrophic agonists such as phenylephrine (PE) compromises the mitochondrial membrane potential (ΔΨm) and morphological dynamics. Such chronic hypertrophic induction also activated the caspases 9 and 3 and induced cleavage of the poly-(ADP-ribose) polymerase 1 (Parp1), which are the typical downstream events in the mitochondrial pathways of apoptosis. An increased rate of apoptosis was evident in the hypertrophied cardiomyocytes after 48-72 h of treatment with the hypertrophic agonists. Anxa6 was progressively associated with the mitochondrial fraction under chronic hypertrophic stimulation, and Anxa6 knockdown severely abrogated mitochondrial network and dynamics. Ectopically expressed Anxa6 protected the mitochondrial morphology and dynamics under PE treatment, and also increased the cellular susceptibility to apoptosis. Biochemical analysis showed that Anxa6 interacts with Parp1 and its 89 kDa cleaved product in a Ca(2+)-dependent manner through the N-terminal residues (1-28). Furthermore, expression of Anxa6(S13E), a mutant dominant negative with respect to Parp1 binding, served as an enhancer of mitochondrial dynamics, even under chronic PE treatment. Chemical inhibition of Parp1 activity released the cellular vulnerability to apoptosis in Anxa6-expressing stable cell lines, thereby shifting the equilibrium away from cell death. Taken together, the present study depicts a dual regulatory function of Anxa6 that is crucial for balancing hypertrophy with apoptosis in cardiomyocytes.
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Affiliation(s)
- P Banerjee
- Cell Biology and Physiology Division, Council of Scientific and Industrial Research - Indian Institute of Chemical Biology, 4, Raja SC Mullick Road, Kolkata 700 032, West Bengal, India
| | - V Chander
- Cell Biology and Physiology Division, Council of Scientific and Industrial Research - Indian Institute of Chemical Biology, 4, Raja SC Mullick Road, Kolkata 700 032, West Bengal, India
| | - A Bandyopadhyay
- Cell Biology and Physiology Division, Council of Scientific and Industrial Research - Indian Institute of Chemical Biology, 4, Raja SC Mullick Road, Kolkata 700 032, West Bengal, India
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Gardiner C, Harrison P, Belting M, Böing A, Campello E, Carter BS, Collier ME, Coumans F, Ettelaie C, van Es N, Hochberg FH, Mackman N, Rennert RC, Thaler J, Rak J, Nieuwland R. Extracellular vesicles, tissue factor, cancer and thrombosis - discussion themes of the ISEV 2014 Educational Day. J Extracell Vesicles 2015; 4:26901. [PMID: 25773446 PMCID: PMC4359985 DOI: 10.3402/jev.v4.26901] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 02/11/2015] [Accepted: 02/18/2015] [Indexed: 12/31/2022] Open
Abstract
Although the association between cancer and venous thromboembolism (VTE) has long been known, the mechanisms are poorly understood. Circulating tissue factor–bearing extracellular vesicles have been proposed as a possible explanation for the increased risk of VTE observed in some types of cancer. The International Society for Extracellular Vesicles (ISEV) and International Society on Thrombosis and Haemostasis (ISTH) held a joint Educational Day in April 2014 to discuss the latest developments in this field. This review discusses the themes of that event and the ISEV 2014 meeting that followed.
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Affiliation(s)
- Chris Gardiner
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3 Women's Centre, John Radcliffe Hospital, Oxford, UK;
| | - Paul Harrison
- School of Immunity and Infection, University of Birmingham Medical School, Birmingham, UK
| | - Mattias Belting
- Department of Oncology and Pathology, Clinical Sciences, Skåne University Hospital, Lund, Sweden
| | - Anita Böing
- Department of Clinical Chemistry, Academic Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands
| | - Elena Campello
- Department of Cardiologic, Thoracic and Vascular Sciences, University of Padua Medical School, Padua, Italy
| | - Bob S Carter
- Division of Neurosurgery, University of California San Diego, La Jolla, CA, USA
| | - Mary E Collier
- Department of Cardiovascular Sciences, University of Leicester, Clinical Sciences Wing, Glenfield General Hospital, Leicester, UK
| | - Frank Coumans
- Department of Clinical Chemistry, Academic Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands.,Department of Biomedical Engineering and Physics, Academic Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands
| | - Camille Ettelaie
- School of Biological, Biomedical and Environmental Sciences, The University of Hull, Hull, UK
| | - Nick van Es
- Department of Vascular Medicine, Academic Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands
| | - Fred H Hochberg
- Division of Neurosurgery, University of California San Diego, La Jolla, CA, USA.,Department of Neurology and Program in Neuroscience, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Nigel Mackman
- Thrombosis and Hemostasis Program, Department of Medicine, UNC McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Robert C Rennert
- Division of Neurosurgery, University of California San Diego, La Jolla, CA, USA
| | - Johannes Thaler
- Clinical Division of Haematology and Haemostaseology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Janusz Rak
- Department of Pediatrics, McGill University, Montreal Children's Hospital Research Institute MUHC, Montreal, QC, Canada
| | - Rienk Nieuwland
- Department of Clinical Chemistry, Academic Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands
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Banerjee P, Bandyopadhyay A. Cytosolic dynamics of annexin A6 trigger feedback regulation of hypertrophy via atrial natriuretic peptide in cardiomyocytes. J Biol Chem 2014; 289:5371-85. [PMID: 24403064 DOI: 10.1074/jbc.m113.514810] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Malfunctions in regulatory pathways that control cell size are prominent in pathological cardiac hypertrophy. Here, we show annexin A6 (Anxa6) to be a crucial regulator of atrial natriuretic peptide (ANP)-mediated counterhypertrophic responses in cardiomyocytes. Adrenergic stimulation of H9c2 cardiomyocytes by phenylephrine (PE) increased the cell size with enhanced expression of biochemical markers of hypertrophy, concomitant with elevated expression and subcellular redistribution of Anxa6. Stable cell lines with controlled increase in Anxa6 levels were protected against PE-induced adverse changes, whereas Anxa6 knockdown augmented the hypertrophic responses. Strikingly, Anxa6 knockdown also abrogated PE-induced juxtanuclear accumulation of secretory granules (SG) containing ANP propeptides (pro-ANP), a signature of maladaptive hypertrophy having counteractive functions. Mechanistically, PE treatment prompted a dynamic association of Anxa6 with pro-ANP-SG, parallel to their participation in anterograde traffic, in an isoform-specific fashion. Moreover, Anxa6 mutants that failed to associate with pro-ANP hindered ANP-mediated protection against hypertrophy, which was rescued, at least partially, by WT Anxa6. Additionally, elevated intracellular calcium (Ca(2+)) stimulated Anxa6-pro-ANP colocalization and membrane association. It also rescued pro-ANP translocation in cells expressing an Anxa6 mutant (Anxa6(ΔC)). Furthermore, stable overexpression of Anxa6(T356D), a mutant with superior flexibility, provided enhanced protection against PE, compared with WT, presumably due to enhanced membrane-binding capacity. Together, the present study delivers a cooperative mechanism where Anxa6 potentiates ANP-dependent counterhypertrophic responses in cardiomyocytes by facilitating regulated traffic of pro-ANP.
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Affiliation(s)
- Priyam Banerjee
- From the Cell Biology and Physiology Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata-700 032, West Bengal, India
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MicroRNA profiling during rat ventricular maturation: A role for miR-29a in regulating cardiomyocyte cell cycle re-entry. FEBS Lett 2013; 587:1548-55. [DOI: 10.1016/j.febslet.2013.01.075] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Revised: 01/19/2013] [Accepted: 01/23/2013] [Indexed: 12/11/2022]
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Chu AJ. Tissue factor, blood coagulation, and beyond: an overview. Int J Inflam 2011; 2011:367284. [PMID: 21941675 PMCID: PMC3176495 DOI: 10.4061/2011/367284] [Citation(s) in RCA: 122] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 06/16/2011] [Accepted: 06/18/2011] [Indexed: 12/18/2022] Open
Abstract
Emerging evidence shows a broad spectrum of biological functions of tissue factor (TF). TF classical role in initiating the extrinsic blood coagulation and its direct thrombotic action in close relation to cardiovascular risks have long been established. TF overexpression/hypercoagulability often observed in many clinical conditions certainly expands its role in proinflammation, diabetes, obesity, cardiovascular diseases, angiogenesis, tumor metastasis, wound repairs, embryonic development, cell adhesion/migration, innate immunity, infection, pregnancy loss, and many others. This paper broadly covers seminal observations to discuss TF pathogenic roles in relation to diverse disease development or manifestation. Biochemically, extracellular TF signaling interfaced through protease-activated receptors (PARs) elicits cellular activation and inflammatory responses. TF diverse biological roles are associated with either coagulation-dependent or noncoagulation-mediated actions. Apparently, TF hypercoagulability refuels a coagulation-inflammation-thrombosis circuit in “autocrine” or “paracrine” fashions, which triggers a wide spectrum of pathophysiology. Accordingly, TF suppression, anticoagulation, PAR blockade, or general anti-inflammation offers an array of therapeutical benefits for easing diverse pathological conditions.
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Affiliation(s)
- Arthur J Chu
- Division of Biological and Physical Sciences, Delta State University, Cleveland, MS 38733, USA
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