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Aufy M, Abdelaziz RF, Hussein AM, Topcagic N, Shamroukh H, Abdel-Maksoud MA, Salem TZ, Studenik CR. Impact of Enniatin B and Beauvericin on Lysosomal Cathepsin B Secretion and Apoptosis Induction. Int J Mol Sci 2023; 24:ijms24032030. [PMID: 36768354 PMCID: PMC9916760 DOI: 10.3390/ijms24032030] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/12/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023] Open
Abstract
Enniatin B (ENN B) and Beauvericin (BEA) are cyclohexadepsipeptides that can be isolated from Fusarium and Beauveria bassiana, respectively. Both compounds are cytotoxic and ionophoric. In the present study, the mechanism of cell death induced by these compounds was investigated. Epidermal carcinoma-derived cell line KB-3-1 cells were treated with different concentrations of these compounds. The extracellular secretion of cathepsin B increased in a concentration-dependent manner, and the lysosomal staining by lysotracker red was reduced upon the treatment with any of the compounds. However, the extracellular secretion of cathepsin L and cathepsin D were not affected. Inhibition of cathepsin B with specific inhibitor CA074 significantly reduced the cytotoxic effect of both compounds, while inhibition of cathepsin D or cathepsin L did not influence the cytotoxic activities of both compounds. In vitro labelling of lysosomal cysteine cathepsins with Ethyl (2S, 3S)-epoxysuccinate-Leu-Tyr-Acp-Lys (Biotin)-NH2 (DCG04) was not affected in case of cathepsin L upon the treatment with both compounds, while it was significantly reduced in case of cathepsin B. In conclusion, ENN B and BEA increase lysosomal Ph, which inhibits delivery of cathepsin B from Golgi to lysosomes, thereby inducing cathepsin B release in cytosol, which activates caspases and hence the apoptotic pathway.
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Affiliation(s)
- Mohammed Aufy
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, 1090 Vienna, Austria
- Correspondence:
| | - Ramadan F. Abdelaziz
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, 1090 Vienna, Austria
| | - Ahmed M. Hussein
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, 1090 Vienna, Austria
- Programme for Proteomics, Paracelsus Private Medical University, 5020 Salzburg, Austria
| | - Nermina Topcagic
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, 1090 Vienna, Austria
| | - Hadil Shamroukh
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, 1090 Vienna, Austria
| | - Mostafa A. Abdel-Maksoud
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Tamer Z. Salem
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza 12511, Egypt
| | - Christian R. Studenik
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, 1090 Vienna, Austria
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Ragusa R, Di Molfetta A, Del Turco S, Cabiati M, Del Ry S, Basta G, Mercatanti A, Pitto L, Amodeo A, Trivella MG, Rizzo M, Caselli C. Epigenetic Regulation of Cardiac Troponin Genes in Pediatric Patients with Heart Failure Supported by Ventricular Assist Device. Biomedicines 2021; 9:biomedicines9101409. [PMID: 34680526 PMCID: PMC8533380 DOI: 10.3390/biomedicines9101409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 09/30/2021] [Accepted: 10/03/2021] [Indexed: 11/16/2022] Open
Abstract
Ventricular Assist Device (VAD) therapy is considered as a part of standard care for end-stage Heart Failure (HF) children unresponsive to medical management, but the potential role of miRNAs in response to VAD therapy on molecular pathways underlying LV remodeling and cardiac function in HF is unknown. The aims of this study were to evaluate the effects of VAD on miRNA expression profile in cardiac tissue obtained from HF children, to determine the putative miRNA targets by an in-silico analysis as well as to verify the changes of predicated miRNA target in the same cardiac samples. The regulatory role of selected miRNAs on predicted targets was evaluated by a dedicated in vitro study. miRNA profile was determined in cardiac samples obtained from 13 HF children [median: 29 months; 19 LVEF%; 9 Kg] by NGS before VAD implant (pre-VAD) and at the moment of heart transplant (Post-VAD). Only hsa-miR-199b-5p, hsa-miR-19a-3p, hsa-miR-1246 were differentially expressed at post-VAD when compared to pre-VAD, and validated by real-time PCR. Putative targets of the selected miRNAs were involved in regulation of sarcomere genes, such as cardiac troponin (cTns) complex. The expression levels of fetal ad adult isoforms of cTns resulted significantly higher after VAD in cardiac tissue of HF pediatric patients when compared with HF adults. An in vitro study confirmed a down-regulatory effect of hsa-miR-19a-3p on cTnC expression. The effect of VAD on sarcomere organization through cTn isoform expression may be epigenetically regulated, suggesting for miRNAs a potential role as therapeutic targets to improve heart function in HF pediatric patients.
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Affiliation(s)
- Rosetta Ragusa
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy; (R.R.); (S.D.T.); (M.C.); (S.D.R.); (G.B.); (A.M.); (L.P.); (M.G.T.); (M.R.)
- Scuola Superiore Sant’Anna, 56127 Pisa, Italy
| | - Arianna Di Molfetta
- Departement of Cardiothoracic Surgery, Ospedale Pediatrico Bambino Gesù, 00165 Rome, Italy; (A.D.M.); (A.A.)
| | - Serena Del Turco
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy; (R.R.); (S.D.T.); (M.C.); (S.D.R.); (G.B.); (A.M.); (L.P.); (M.G.T.); (M.R.)
| | - Manuela Cabiati
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy; (R.R.); (S.D.T.); (M.C.); (S.D.R.); (G.B.); (A.M.); (L.P.); (M.G.T.); (M.R.)
| | - Silvia Del Ry
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy; (R.R.); (S.D.T.); (M.C.); (S.D.R.); (G.B.); (A.M.); (L.P.); (M.G.T.); (M.R.)
| | - Giuseppina Basta
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy; (R.R.); (S.D.T.); (M.C.); (S.D.R.); (G.B.); (A.M.); (L.P.); (M.G.T.); (M.R.)
| | - Alberto Mercatanti
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy; (R.R.); (S.D.T.); (M.C.); (S.D.R.); (G.B.); (A.M.); (L.P.); (M.G.T.); (M.R.)
| | - Letizia Pitto
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy; (R.R.); (S.D.T.); (M.C.); (S.D.R.); (G.B.); (A.M.); (L.P.); (M.G.T.); (M.R.)
| | - Antonio Amodeo
- Departement of Cardiothoracic Surgery, Ospedale Pediatrico Bambino Gesù, 00165 Rome, Italy; (A.D.M.); (A.A.)
| | - Maria Giovanna Trivella
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy; (R.R.); (S.D.T.); (M.C.); (S.D.R.); (G.B.); (A.M.); (L.P.); (M.G.T.); (M.R.)
| | - Milena Rizzo
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy; (R.R.); (S.D.T.); (M.C.); (S.D.R.); (G.B.); (A.M.); (L.P.); (M.G.T.); (M.R.)
| | - Chiara Caselli
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy; (R.R.); (S.D.T.); (M.C.); (S.D.R.); (G.B.); (A.M.); (L.P.); (M.G.T.); (M.R.)
- Fondazione Toscana Gabriele Monasterio, 56124 Pisa, Italy
- Correspondence: ; Tel.: +39-050-3153551; Fax: +39-050-3152166
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Plasma exosomes characterization reveals a perioperative protein signature in older patients undergoing different types of on-pump cardiac surgery. GeroScience 2020; 43:773-789. [PMID: 32691393 PMCID: PMC8110632 DOI: 10.1007/s11357-020-00223-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 06/23/2020] [Indexed: 12/23/2022] Open
Abstract
Although exosomes are extracellular nanovesicles mainly involved in cardioprotection, it is not known whether plasma exosomes of older patients undergoing different types of on-pump cardiac surgery protect cardiomyocytes from apoptosis. Since different exosomal proteins confer pro-survival effects, we have analyzed the protein cargo of exosomes circulating early after aortic unclamping. Plasma exosomes and serum cardiac troponin I levels were measured in older cardiac surgery patients (NYHA II-III) who underwent first-time on-pump coronary artery bypass graft (CABG; n = 15) or minimally invasive heart valve surgery (mitral valve repair, n = 15; aortic valve replacement, n = 15) at induction of anesthesia (T0, baseline), 3 h (T1) and 72 h (T2) after aortic unclamping. Anti-apoptotic role of exosomes was assessed in HL-1 cardiomyocytes exposed to hypoxia/re-oxygenation (H/R) by TUNEL assay. Protein exosomal cargo was characterized by mass spectrometry approach. Exosome levels increased at T1 (P < 0.01) in accord with troponin values in all groups. In CABG group, plasma exosomes further increased at T2 (P < 0.01) whereas troponin levels decreased. In vitro, all T1-exosomes prevented H/R-induced apoptosis. A total of 340 exosomal proteins were identified in all groups, yet 10% of those proteins were unique for each surgery type. In particular, 22 and 12 pro-survival proteins were detected in T1-exosomes of heart valve surgery and CABG patients, respectively. Our results suggest that endogenous intraoperative cardioprotection in older cardiac surgery patients is early mediated by distinct exosomal proteins regardless of surgery type.
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Cabiati M, Botta L, Caselli C, Del Ry S. Transcriptional evaluation of relaxin and endothelin-1 axis in heart failure patients: First evidence of its involvement during left ventricular assist device support. Int J Cardiol 2020; 306:109-115. [PMID: 32143920 DOI: 10.1016/j.ijcard.2020.02.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/18/2020] [Accepted: 02/23/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Left ventricular assist devices (LVAD) are implanted in patients with end-stage heart failure (ESHF) as a mechanical support for the failing myocardium, which is characterized by an activation of the neuro-hormonal system, with release of vasoactive mediators, such as endothelin (ET)-1 and relaxin (RLX)-2. The aim of this study was to evaluate whether LVAD is able to modulate the RLX-2 and ET-1 system expression in ESHF patients. METHODS Cardiac tissue was collected from ESHF patients before LVAD implantation (pre-LVAD group, n = 22), at the time of cardiac transplantation with concomitant LVAD removal (post-LVAD group, n = 6), and from stable HF patients on medical therapy at the time of cardiac transplantation (HTx group, n = 7). The expression of RLX-2, ET-1 system and inflammatory markers (IL-8, IL-6, TNF-α) were evaluated by Real-Time PCR. RESULTS RLX-2 mRNA resulted similar in pre-LVAD and HTx, but it was significantly increased in post-LVAD (p = 0.02/p = 0.01 respectively). A similar trend was observed for ET-1 and ET-converting enzyme (ECE)-1 while no significant difference was observed for ET-receptors. A positive correlation was found between ET-1 and ET-A (p = 0.031) and ECE-1 (p < 0.0001). The inflammatory markers resulted activated in all the three groups. A significant correlation between RLX-2 and ET-1 in pre-LVAD, as well as between RLX-2 and IL-8/IL-6, was found. CONCLUSIONS Our research investigates for the first time the involvement of RLX-2 and ET-1 system in ESHF patients supported by LVAD, demonstrating their potential ability to partially recover the failing myocardium, indicating their possible clinical role as biomarkers or pharmacological agents in LVAD patients. TRANSLATIONAL ASPECT The study of novel biomarkers in patients supported by continuous axial flow devices may be a starting point analysis applicable to patients with centrifugal flow devices.
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Affiliation(s)
| | - Luca Botta
- Department of Cardiac Surgery, Niguarda Ca' Granda Hospital, Milan, Italy; Department of Cardiac Surgery, AOU Bologna, S. Orsola Hospital, Italy
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Stephens EH, Han J, Trawick EA, Di Martino ES, Akkiraju H, Brown LM, Connell JP, Grande-Allen KJ, Vunjak-Novakovic G, Takayama H. Left-Ventricular Assist Device Impact on Aortic Valve Mechanics, Proteomics and Ultrastructure. Ann Thorac Surg 2017; 105:572-580. [PMID: 29223417 DOI: 10.1016/j.athoracsur.2017.08.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 06/24/2017] [Accepted: 08/07/2017] [Indexed: 12/23/2022]
Abstract
BACKGROUND Aortic regurgitation is a prevalent, detrimental complication of left ventricular assist devices (LVADs). The altered hemodynamics of LVADs results in aortic valves (AVs) having distinct mechanical stimulation. Our hypothesis was that the altered AV hemodynamics modulates the valve cells and matrix, resulting in changes in valvular mechanical properties that then can lead to regurgitation. METHODS AVs were collected from 16 LVAD and 6 non-LVAD patients at time of heart transplant. Standard demographic and preoperative data were collected and comparisons between the two groups were calculated using standard statistical methods. Samples were analyzed using biaxial mechanical tensile testing, mass spectrometry-based proteomics, and transmission electron microscopy to assess ultrastructure. RESULTS The maximum circumferential leaflet strain in LVAD patients was less than in non-LVAD patients (0.35 ± 0.10MPa versus 0.52 ± 0.18 MPa, p = 0.03) with a trend of reduced radial strain (p = 0.06) and a tendency for the radial strain to decrease with increasing LVAD duration (p = 0.063). Numerous proteins associated with actin and myosin, immune signaling and oxidative stress, and transforming growth factor β were increased in LVAD patients. Ultrastructural analysis showed a trend of increased fiber diameter in LVAD patients (46.2 ± 7.2 nm versus 45.1 ± 6.9 nm, p = 0.10), but no difference in fiber density. CONCLUSIONS AVs in LVAD patients showed decreased compliance and increased expression of numerous proteins related to valve activation and injury compared to non-LVAD patients. Further knowledge of AV changes leading to regurgitation in LVAD patients and the pathways by which they occur may provide an opportunity for interventions to prevent and/or reverse this detrimental complication.
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Affiliation(s)
- Elizabeth H Stephens
- Division of Cardiac, Thoracic and Vascular Surgery, Columbia University Medical Center, New York, New York.
| | - Jiho Han
- Division of Cardiac, Thoracic and Vascular Surgery, Columbia University Medical Center, New York, New York
| | - Emma A Trawick
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Elena S Di Martino
- Schulich School of Engineering and Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada
| | - Hemanth Akkiraju
- Quantitative Proteomics and Metabolomics Center and Department of Biological Sciences, Columbia University, New York, New York
| | - Lewis M Brown
- Quantitative Proteomics and Metabolomics Center and Department of Biological Sciences, Columbia University, New York, New York
| | | | | | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, New York, New York; Department of Medicine, Columbia University Medical Center, New York, New York
| | - Hiroo Takayama
- Division of Cardiac, Thoracic and Vascular Surgery, Columbia University Medical Center, New York, New York
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Yerramilli M, Farace G, Quinn J, Yerramilli M. Kidney Disease and the Nexus of Chronic Kidney Disease and Acute Kidney Injury: The Role of Novel Biomarkers as Early and Accurate Diagnostics. Vet Clin North Am Small Anim Pract 2016; 46:961-93. [PMID: 27485279 DOI: 10.1016/j.cvsm.2016.06.011] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chronic kidney disease (CKD) and acute kidney injury (AKI) are interconnected and the presence of one is a risk for the other. CKD is an important predictor of AKI after exposure to nephrotoxic drugs or major surgery, whereas persistent or repetitive injury could result in the progression of CKD. This brings new perspectives to the diagnosis and monitoring of kidney diseases highlighting the need for a panel of kidney-specific biomarkers that reflect functional as well as structural damage and recovery, predict potential risk and provide prognosis. This article discusses the kidney-specific biomarkers, symmetric dimethylarginine (SDMA), clusterin, cystatin B, and inosine.
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Affiliation(s)
- Murthy Yerramilli
- IDEXX Laboratories, Research & Development, 1-IDEXX Drive, Westbrook, ME 04092, USA.
| | - Giosi Farace
- IDEXX Laboratories, Research & Development, 1-IDEXX Drive, Westbrook, ME 04092, USA
| | - John Quinn
- IDEXX Laboratories, Research & Development, 1-IDEXX Drive, Westbrook, ME 04092, USA
| | - Maha Yerramilli
- IDEXX Laboratories, Research & Development, 1-IDEXX Drive, Westbrook, ME 04092, USA
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Linz D, Hohl M, Dhein S, Ruf S, Reil JC, Kabiri M, Wohlfart P, Verheule S, Böhm M, Sadowski T, Schotten U. Cathepsin A mediates susceptibility to atrial tachyarrhythmia and impairment of atrial emptying function in Zucker diabetic fatty rats. Cardiovasc Res 2016; 110:371-80. [DOI: 10.1093/cvr/cvw071] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 03/25/2016] [Indexed: 02/01/2023] Open
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