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Stanic B, Kokai D, Markovic Filipovic J, Tomanic T, Vukcevic J, Stojkov V, Andric N. Vascular endothelial effects of dibutyl phthalate: In vitro and in vivo evidence. Chem Biol Interact 2024; 399:111120. [PMID: 38944327 DOI: 10.1016/j.cbi.2024.111120] [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: 02/29/2024] [Revised: 05/24/2024] [Accepted: 06/27/2024] [Indexed: 07/01/2024]
Abstract
Dibutyl phthalate (DBP) is widely used in many consumer and personal care products. Here, we report vascular endothelial response to DBP in three different exposure scenarios: after short-term exposure (24 h) of human endothelial cells (ECs) EA.hy926 to 10-6, 10-5, and 10-4 M DBP, long-term exposure (12 weeks) of EA.hy926 cells to 10-9, 10-8, and 10-7 M DBP, and exposure of rats (28 and 90 days) to 100, 500, and 5000 mg DBP/kg food. We examined different vascular functions such as migration of ECs, adhesion of ECs to the extracellular matrix, tube formation, the morphology of rat aorta, as well as several signaling pathways involved in controlling endothelial function. Short-term in vitro exposure to DBP increased migration of ECs through G protein-coupled estrogen receptor, extracellular signal-regulated kinase 1/2, and nitric oxide (NO) signaling and decreased adhesion to gelatin. Long-term in vitro exposure to DBP transiently increased EC migration and had a bidirectional effect on EC adhesion to gelatin and tube formation. These effects were accompanied by a sustained increase in NO production and endothelial NO synthase (eNOS) and Akt activity. In vivo, exposure to DBP for 90 days decreased the aortic wall-to-lumen ratio and increased eNOS and Akt phosphorylation in ECs of rat aorta. This comparative investigation has shown that exposure to DBP may affect vascular function by altering EC migration, adhesion to gelatin, and tube formation after short- and long-term in vitro exposure and by decreasing the aortic wall-to-lumen ratio in vivo. The eNOS-NO and Akt signaling could be important in mediating the effects of DBP in long-term exposure scenarios.
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Affiliation(s)
- Bojana Stanic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia.
| | - Dunja Kokai
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
| | | | - Tamara Tomanic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
| | - Jelena Vukcevic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
| | - Viktor Stojkov
- University of Novi Sad, Institute of Food Technology, Serbia
| | - Nebojsa Andric
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
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Altun HY, Secilmis M, Yang F, Akgul Caglar T, Vatandaslar E, Toy MF, Vilain S, Mann GE, Öztürk G, Eroglu E. Visualizing hydrogen peroxide and nitric oxide dynamics in endothelial cells using multispectral imaging under controlled oxygen conditions. Free Radic Biol Med 2024; 221:89-97. [PMID: 38735541 DOI: 10.1016/j.freeradbiomed.2024.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/04/2024] [Accepted: 05/10/2024] [Indexed: 05/14/2024]
Abstract
The complex interplay between hydrogen peroxide (H2O2) and nitric oxide (NO) in endothelial cells presents challenges due to technical limitations in simultaneous measurement, hindering the elucidation of their direct relationship. Previous studies have yielded conflicting findings regarding the impact of H2O2 on NO production. To address this problem, we employed genetically encoded biosensors, HyPer7 for H2O2 and geNOps for NO, allowing simultaneous imaging in single endothelial cells. Optimization strategies were implemented to enhance biosensor performance, including camera binning, temperature regulation, and environmental adjustments to mimic physiological normoxia. Our results demonstrate that under ambient oxygen conditions, H2O2 exhibited no significant influence on NO production. Subsequent exploration under physiological normoxia (5 kPa O2) revealed distinct oxidative stress levels characterized by reduced basal HyPer7 signals, enhanced H2O2 scavenging kinetics, and altered responses to pharmacological treatment. Investigation of the relationship between H2O2 and NO under varying oxygen conditions revealed a lack of NO response to H2O2 under hyperoxia (18 kPa O2) but a modest NO response under physiological normoxia (5 kPa O2). Importantly, the NO response was attenuated by l-NAME, suggesting activation of eNOS by endogenous H2O2 generation upon auranofin treatment. Our study highlights the intricate interplay between H2O2 and NO within the endothelial EA.hy926 cell line, emphasizing the necessity for additional research within physiological contexts due to differential response observed under physiological normoxia (5 kPa O2). This further investigation is essential for a comprehensive understanding of the H2O2 and NO signaling considering the physiological effects of ambient O2 levels involved.
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Affiliation(s)
- Hamza Yusuf Altun
- Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, 34810, Istanbul, Turkey; Molecular Biology, Genetics, and Bioengineering Program, Sabanci University, 34956, Istanbul, Turkey
| | - Melike Secilmis
- Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, 34810, Istanbul, Turkey; Molecular Biology, Genetics, and Bioengineering Program, Sabanci University, 34956, Istanbul, Turkey
| | - Fan Yang
- King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular and Metabolic Medicine & Sciences, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | - Tuba Akgul Caglar
- Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, 34810, Istanbul, Turkey; Molecular Biology, Genetics, and Bioengineering Program, Sabanci University, 34956, Istanbul, Turkey
| | - Emre Vatandaslar
- Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, 34810, Istanbul, Turkey
| | - Muhammed Fatih Toy
- School of Engineering and Natural Science, Istanbul Medipol University, 34810, Istanbul, Turkey
| | - Sven Vilain
- Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, 34810, Istanbul, Turkey.
| | - Giovanni E Mann
- King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular and Metabolic Medicine & Sciences, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK.
| | - Gürkan Öztürk
- Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, 34810, Istanbul, Turkey; Physiology Department, School of Medicine, Bolu Abant Izzet Baysal University (BAIBU), 14200, Bolu, Türkiye.
| | - Emrah Eroglu
- Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, 34810, Istanbul, Turkey; Molecular Biology, Genetics, and Bioengineering Program, Sabanci University, 34956, Istanbul, Turkey.
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Stanic B, Kokai D, Opacic M, Pogrmic-Majkic K, Andric N. Transcriptome-centric approach to the derivation of adverse outcome pathway networks of vascular dysfunction after long-term low-level exposure of human endothelial cells to dibutyl phthalate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:174918. [PMID: 39038667 DOI: 10.1016/j.scitotenv.2024.174918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 07/18/2024] [Accepted: 07/18/2024] [Indexed: 07/24/2024]
Abstract
Dibutyl phthalate (DBP) is an endocrine disruptor that adversely affects reproduction; however, evidence suggests it can also impact other systems, including vascular function. The mechanisms underlying DBP-induced vascular dysfunction, particularly after long-term low-level exposure of endothelial cells to this phthalate, remain largely unknown. To address this gap, we used experimentally derived data on differentially expressed genes (DEGs) obtained after 12 weeks of exposure of human vascular endothelial cells EA.hy926 to the concentrations of DBP to which humans are routinely exposed (10-9 M, 10-8 M, and 10-7 M) and various computational tools and manual data curation to build the first adverse outcome pathway (AOP) network relevant to DBP-induced vascular toxicity. DEGs were used to infer transcription factors (molecular initiating events) and molecular functions and biological processes (key events, KEs) using the Enrichr database. The AOP-helpFinder 2.0, an artificial intelligence-based web tool, was used to link genes and KEs and assign confidence scores to co-occurred terms. We constructed the AOP networks using Cytoscape and then manually arranged KEs to depict the flow of mechanistic information across different levels of network organization. An AOP network was created for each DBP concentration, revealing several distinct high-confidence subnetworks that could be involved in DBP-induced vascular toxicity: the insulin-like growth factor subnetwork for 10-7 M DBP, the CXCL8-dependent chemokine subnetwork for 10-8 M DBP, and the fatty acid subnetwork for 10-9 M DBP. We also developed an AOP network providing a mechanistic insight into the dose-dependent effects of DBP in endothelial cells leading to vascular dysfunction. In summary, we present novel putative AOP networks describing the mechanistic flow of information involved in DBP-induced vascular dysfunction in a long-term low-level exposure scenario.
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Affiliation(s)
- Bojana Stanic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
| | - Dunja Kokai
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
| | - Marija Opacic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia
| | | | - Nebojsa Andric
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Serbia.
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Binz RL, Pathak R. G-Banding and Molecular Cytogenetics Detect Novel Translocations and Cryptic Aberrations in Human Immortal Endothelial Cells. Int J Mol Sci 2024; 25:7941. [PMID: 39063182 PMCID: PMC11276908 DOI: 10.3390/ijms25147941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 07/16/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
Endothelial cells (ECs) maintain vessel tone and barrier integrity, regulate blood homeostasis, and prevent the extravasation of leukocytes under normal physiological conditions. Because of the limited lifespans and batch-to-batch differences with respect to the genetic make-up of primary ECs, established immortal EC lines are extensively used for studying endothelial biology. To address this issue, the immortal endothelial cell line EA.hy926 was developed by fusing primary human umbilical vein endothelial cells (HUVECs) with human lung carcinoma A549 cells. EA.hy926 cells share a number of similar endothelial properties with HUVECs and are considered the immortal counterpart to primary HUVECs. However, the cytogenetic integrity of EA.hy926 cells is not fully elucidated. We characterized EA.hy926 cells with conventional G-banding and molecular cytogenetic techniques such as spectral karyotyping and subtelomeric fluorescence in situ hybridization. Cytogenetic analysis revealed an array of numerical and stable structural chromosomal rearrangements including one deletion, one duplication, one isochromosome, seven simple translocations, and five complex translocations in Ea.hy926 cells. These findings will advance comprehension of EA.hy926 cell biology and augment future endothelial studies, specifically in comparison studies between HUVECs and EA.hy926 cells.
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Affiliation(s)
| | - Rupak Pathak
- Division of Radiation Health, Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
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Vahldieck C, Löning S, Hamacher C, Fels B, Rudzewski B, Nickel L, Weil J, Nording H, Baron L, Kleingarn M, Karsten CM, Kusche-Vihrog K. Dysregulated complement activation during acute myocardial infarction leads to endothelial glycocalyx degradation and endothelial dysfunction via the C5a:C5a-Receptor1 axis. Front Immunol 2024; 15:1426526. [PMID: 39055717 PMCID: PMC11269135 DOI: 10.3389/fimmu.2024.1426526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 06/25/2024] [Indexed: 07/27/2024] Open
Abstract
Introduction Complement-mediated damage to the myocardium during acute myocardial infarction (AMI), particularly the late components of the terminal pathway (C5-convertase and C5b-9), have previously been characterized. Unfortunately, only few studies have reported a direct association between dysregulated complement activation and endothelial function. Hence, little attention has been paid to the role of the anaphylatoxin C5a. The endothelial glycocalyx (eGC) together with the cellular actin cortex provide a vasoprotective barrier against chronic vascular inflammation. Changes in their nanomechanical properties (stiffness and height) are recognized as hallmarks of endothelial dysfunction as they correlate with the bioavailability of vasoactive substances, such as nitric oxide (NO). Here, we determined how the C5a:C5aR1 axis affects the eGC and endothelial function in AMI. Methods Samples of fifty-five patients with ST-elevation myocardial infarction (STEMI) vs. healthy controls were analyzed in this study. eGC components and C5a levels were determined via ELISA; NO levels were quantified chemiluminescence-based. Endothelial cells were stimulated with C5a or patient sera (with/without C5a-receptor1 antagonist "PMX53") and the nanomechanical properties of eGC quantified using the atomic force microscopy (AFM)-based nanoindentation technique. To measure actin cytoskeletal tension regulator activation (RhoA and Rac1) G-LISA assays were applied. Vascular inflammation was examined by quantifying monocyte-endothelium interaction via AFM-based single-cell-force spectroscopy. Results Serum concentrations of eGC components and C5a were significantly increased during STEMI. Serum and solely C5a stimulation decreased eGC height and stiffness, indicating shedding of the eGC. C5a enhanced RhoA activation, resulting in increased cortical stiffness with subsequent reduction in NO concentrations. Monocyte adhesion to the endothelium was enhanced after both C5a and stimulation with STEMI serum. eGC degradation- and RhoA-induced cortical stiffening with subsequent endothelial dysfunction were attenuated after administering PMX53. Conclusion This study demonstrates that dysregulated C5a activation during AMI results in eGC damage with subsequent endothelial dysfunction and reduced NO bioavailability, indicating progressively developing vascular inflammation. This could be prevented by antagonizing C5aR1, highlighting the role of the C5a:C5a-Receptor1 axis in vascular inflammation development and endothelial dysfunction in AMI, offering new therapeutic approaches for future investigations.
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Affiliation(s)
- Carl Vahldieck
- Department of Anesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein Campus Luebeck, Luebeck, Germany
- Institute of Physiology, University of Luebeck, Luebeck, Germany
- DZHK (German Research Centre for Cardiovascular Research), Partner Site Hamburg/Luebeck/Kiel, Luebeck, Germany
| | - Samuel Löning
- Institute of Physiology, University of Luebeck, Luebeck, Germany
| | | | - Benedikt Fels
- Institute of Physiology, University of Luebeck, Luebeck, Germany
- DZHK (German Research Centre for Cardiovascular Research), Partner Site Hamburg/Luebeck/Kiel, Luebeck, Germany
| | | | - Laura Nickel
- Medizinische Klinik II, Sana Kliniken Luebeck, Luebeck, Germany
| | - Joachim Weil
- Medizinische Klinik II, Sana Kliniken Luebeck, Luebeck, Germany
| | - Henry Nording
- DZHK (German Research Centre for Cardiovascular Research), Partner Site Hamburg/Luebeck/Kiel, Luebeck, Germany
- Cardioimmunology Group, Medical Clinic II, University Heart Center Luebeck, Luebeck, Germany
| | - Lasse Baron
- Cardioimmunology Group, Medical Clinic II, University Heart Center Luebeck, Luebeck, Germany
| | - Marie Kleingarn
- Institute for Systemic Inflammation Research (ISEF), University of Luebeck, Luebeck, Germany
| | | | - Kristina Kusche-Vihrog
- Institute of Physiology, University of Luebeck, Luebeck, Germany
- DZHK (German Research Centre for Cardiovascular Research), Partner Site Hamburg/Luebeck/Kiel, Luebeck, Germany
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Babenko VA, Yakupova EI, Pevzner IB, Bocharnikov AD, Zorova LD, Fedulova KS, Grebenchikov OA, Kuzovlev AN, Grechko AV, Silachev DN, Rahimi-Moghaddam P, Plotnikov EY. Effects of Lithium Ions on tPA-Induced Hemorrhagic Transformation under Stroke. Biomedicines 2024; 12:1325. [PMID: 38927532 PMCID: PMC11201972 DOI: 10.3390/biomedicines12061325] [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: 05/18/2024] [Revised: 06/07/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024] Open
Abstract
Thrombolytic therapy with the tissue plasminogen activator (tPA) is a therapeutic option for acute ischemic stroke. However, this approach is subject to several limitations, particularly the increased risk of hemorrhagic transformation (HT). Lithium salts show neuroprotective effects in stroke, but their effects on HT mechanisms are still unknown. In our study, we use the models of photothrombosis (PT)-induced brain ischemia and oxygen-glucose deprivation (OGD) to investigate the effect of Li+ on tPA-induced changes in brain and endothelial cell cultures. We found that tPA did not affect lesion volume or exacerbate neurological deficits but disrupted the blood-brain barrier. We demonstrate that poststroke treatment with Li+ improves neurological status and increases blood-brain barrier integrity after thrombolytic therapy. Under conditions of OGD, tPA treatment increased MMP-2/9 levels in endothelial cells, and preincubation with LiCl abolished this MMP activation. Moreover, we observed the effect of Li+ on glycolysis in tPA-treated endothelial cells, which we hypothesized to have an effect on MMP expression.
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Affiliation(s)
- Valentina A. Babenko
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.A.B.); (E.I.Y.); (I.B.P.); (A.D.B.); (L.D.Z.); (K.S.F.); (D.N.S.)
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Elmira I. Yakupova
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.A.B.); (E.I.Y.); (I.B.P.); (A.D.B.); (L.D.Z.); (K.S.F.); (D.N.S.)
| | - Irina B. Pevzner
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.A.B.); (E.I.Y.); (I.B.P.); (A.D.B.); (L.D.Z.); (K.S.F.); (D.N.S.)
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Alexey D. Bocharnikov
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.A.B.); (E.I.Y.); (I.B.P.); (A.D.B.); (L.D.Z.); (K.S.F.); (D.N.S.)
- Advanced Engineering School “Intelligent Theranostics Systems”, Sechenov First Moscow State Medical University, 119992 Moscow, Russia
| | - Ljubava D. Zorova
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.A.B.); (E.I.Y.); (I.B.P.); (A.D.B.); (L.D.Z.); (K.S.F.); (D.N.S.)
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Kseniya S. Fedulova
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.A.B.); (E.I.Y.); (I.B.P.); (A.D.B.); (L.D.Z.); (K.S.F.); (D.N.S.)
| | - Oleg A. Grebenchikov
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (O.A.G.); (A.N.K.); (A.V.G.)
| | - Artem N. Kuzovlev
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (O.A.G.); (A.N.K.); (A.V.G.)
| | - Andrey V. Grechko
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 107031 Moscow, Russia; (O.A.G.); (A.N.K.); (A.V.G.)
| | - Denis N. Silachev
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.A.B.); (E.I.Y.); (I.B.P.); (A.D.B.); (L.D.Z.); (K.S.F.); (D.N.S.)
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
| | - Parvaneh Rahimi-Moghaddam
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran 14496-14535, Iran;
| | - Egor Y. Plotnikov
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.A.B.); (E.I.Y.); (I.B.P.); (A.D.B.); (L.D.Z.); (K.S.F.); (D.N.S.)
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
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Grytting VS, Skuland T, Ballangby J, Refsnes M, Låg M, Øvrevik J, Mariussen E. The effects of fine particulate matter (SRM 2786) on three different 3D lung models exposed at the air-liquid interface - A comparative study. Toxicol In Vitro 2024; 98:105841. [PMID: 38729454 DOI: 10.1016/j.tiv.2024.105841] [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: 01/05/2024] [Revised: 04/17/2024] [Accepted: 05/06/2024] [Indexed: 05/12/2024]
Abstract
3D cell culture models exposed at the air-liquid interface (ALI) represent a potential alternative to animal experiments for hazard and risk assessment of inhaled compounds. This study compares cocultures composed of either Calu-3, A549 or HBEC3-KT lung epithelial cells, cultured together with THP-1-derived macrophages and EA.hy926 endothelial cells, in terms of barrier capacity and responses to a standard reference sample of fine particulate matter (SRM 2786). High-content imaging analysis revealed a similar cellular composition between the different cell models. The 3D cell cultures with Calu-3 cells showed the greatest barrier capacity, as measured by transepithelial electrical resistance and permeability to Na-fluorescein. Mucus production was detected in 3D cell cultures based on Calu-3 and A549 cells. Exposure to SRM 2786 at ALI increased cytokine release and expression of genes associated with inflammation and xenobiotic metabolism. Moreover, the presence of THP-1-derived macrophages was central to the cytokine responses in all cell models. While the different 3D cell culture models produced qualitatively similar responses, more pronounced pro-inflammatory responses were observed in the basolateral compartment of the A549 and HBEC3-KT models compared to the Calu-3 model, likely due to their reduced barrier capacity and lower retention of secreted mediators in the apical compartment.
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Affiliation(s)
- Vegard Sæter Grytting
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway.
| | - Tonje Skuland
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway
| | - Jarle Ballangby
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway
| | - Magne Refsnes
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway
| | - Marit Låg
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway
| | - Johan Øvrevik
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway; Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, PO Box 1066 Blindern, 0316 Oslo, Norway
| | - Espen Mariussen
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway.
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8
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Krempski J, Yamani A, Thota LNR, Marella S, Ganesan V, Sharma A, Kaneshige A, Bai L, Zhou H, Foster PS, Wang S, Obi AT, Hogan SP. IL-4-STAT6 axis amplifies histamine-induced vascular endothelial dysfunction and hypovolemic shock. J Allergy Clin Immunol 2024:S0091-6749(24)00520-7. [PMID: 38777155 DOI: 10.1016/j.jaci.2024.05.009] [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: 07/13/2023] [Revised: 04/22/2024] [Accepted: 05/02/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Mast cell-derived mediators induce vasodilatation and fluid extravasation, leading to cardiovascular failure in severe anaphylaxis. We previously revealed a synergistic interaction between the cytokine IL-4 and the mast cell-derived mediator histamine in modulating vascular endothelial (VE) dysfunction and severe anaphylaxis. The mechanism by which IL-4 exacerbates histamine-induced VE dysfunction and severe anaphylaxis is unknown. OBJECTIVE We sought to identify the IL-4-induced molecular processes regulating the amplification of histamine-induced VE barrier dysfunction and the severity of IgE-mediated anaphylactic reactions. METHODS RNA sequencing, Western blot, Ca2+ imaging, and barrier functional analyses were performed on the VE cell line (EA.hy926). Pharmacologic degraders (selective proteolysis-targeting chimera) and genetic (lentiviral short hairpin RNA) inhibitors were used to determine the roles of signal transducer and activator of transcription 3 (STAT3) and STAT6 in conjunction with in vivo model systems of histamine-induced hypovolemic shock. RESULTS IL-4 enhancement of histamine-induced VE barrier dysfunction was associated with increased VE-cadherin degradation, intracellular calcium flux, and phosphorylated Src levels and required transcription and de novo protein synthesis. RNA sequencing analyses of IL-4-stimulated VE cells identified dysregulation of genes involved in cell proliferation, cell development, and cell growth, and transcription factor motif analyses revealed a significant enrichment of differential expressed genes with putative STAT3 and STAT6 motif. IL-4 stimulation in EA.hy926 cells induced both serine residue 727 and tyrosine residue 705 phosphorylation of STAT3. Genetic and pharmacologic ablation of VE STAT3 activity revealed a role for STAT3 in basal VE barrier function; however, IL-4 enhancement and histamine-induced VE barrier dysfunction was predominantly STAT3 independent. In contrast, IL-4 enhancement and histamine-induced VE barrier dysfunction was STAT6 dependent. Consistent with this finding, pharmacologic knockdown of STAT6 abrogated IL-4-mediated amplification of histamine-induced hypovolemia. CONCLUSIONS These studies unveil a novel role of the IL-4/STAT6 signaling axis in the priming of VE cells predisposing to exacerbation of histamine-induced anaphylaxis.
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Affiliation(s)
- James Krempski
- Mary H. Weiser Food Allergy Center, Michigan Medicine, University of Michigan, Ann Arbor, Mich
| | - Amnah Yamani
- Mary H. Weiser Food Allergy Center, Michigan Medicine, University of Michigan, Ann Arbor, Mich; Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Sahiti Marella
- Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, Mich
| | - Varsha Ganesan
- Mary H. Weiser Food Allergy Center, Michigan Medicine, University of Michigan, Ann Arbor, Mich; Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, Mich
| | - Ankit Sharma
- Mary H. Weiser Food Allergy Center, Michigan Medicine, University of Michigan, Ann Arbor, Mich
| | - Atsunori Kaneshige
- Department of Internal Medicine, University of Michigan, Ann Arbor, Mich; Department of Pharmacology, University of Michigan, Ann Arbor, Mich; Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Mich
| | - Longchuan Bai
- Department of Internal Medicine, University of Michigan, Ann Arbor, Mich; Department of Pharmacology, University of Michigan, Ann Arbor, Mich; Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Mich
| | - Haibin Zhou
- Department of Internal Medicine, University of Michigan, Ann Arbor, Mich; Department of Pharmacology, University of Michigan, Ann Arbor, Mich; Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Mich
| | - Paul S Foster
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, and Immune Health Program, Hunter Medical Research Institute, Newcastle, Australia
| | - Shaomeng Wang
- Department of Internal Medicine, University of Michigan, Ann Arbor, Mich; Department of Pharmacology, University of Michigan, Ann Arbor, Mich; Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Mich
| | - Andrea T Obi
- Conrad Jobst Vascular Research Laboratories, University of Michigan Medical School, Ann Arbor, Mich
| | - Simon P Hogan
- Mary H. Weiser Food Allergy Center, Michigan Medicine, University of Michigan, Ann Arbor, Mich; Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, Mich.
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9
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Chen Q, Xu X, Xie S, Sheng A, Han N, Tian Z, Wang X, Li F, Linhardt RJ, Zhang F, Jin L, Zhang Q, Chi L. Improving impact of heparan sulfate on the endothelial glycocalyx abnormalities in atherosclerosis as revealed by glycan-protein interactome. Carbohydr Polym 2024; 330:121834. [PMID: 38368111 DOI: 10.1016/j.carbpol.2024.121834] [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: 11/08/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 02/19/2024]
Abstract
Endothelial dysfunction induced by oxidative stress is an early predictor of atherosclerosis, which can cause various cardiovascular diseases. The glycocalyx layer on the endothelial cell surface acts as a barrier to maintain endothelial biological function, and it can be impaired by oxidative stress. However, the mechanism of glycocalyx damage during the development of atherosclerosis remains largely unclear. Herein, we established a novel strategy to address these issues from the glycomic perspective that has long been neglected. Using countercharged fluorescence protein staining and quantitative mass spectrometry, we found that heparan sulfate, a major component of the glycocalyx, was structurally altered by oxidative stress. Comparative proteomics and protein microarray analysis revealed several new heparan sulfate-binding proteins, among which alpha-2-Heremans-Schmid glycoprotein (AHSG) was identified as a critical protein. The molecular mechanism of AHSG with heparin was characterized through several methods. A heparan analog could relieve atherosclerosis by protecting heparan sulfate from degradation during oxidative stress and by reducing the accumulation of AHSG at lesion sites. In the present study, the molecular mechanism of anti-atherosclerotic effect of heparin through interaction with AHSG was revealed. These findings provide new insights into understanding of glycocalyx damage in atherosclerosis and lead to the development of corresponding therapeutics.
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Affiliation(s)
- Qingqing Chen
- National Glycoengineering Research Center, Shandong University, Qingdao, Shandong 266237, China
| | - Xiaohui Xu
- National Glycoengineering Research Center, Shandong University, Qingdao, Shandong 266237, China
| | - Shaoshuai Xie
- National Glycoengineering Research Center, Shandong University, Qingdao, Shandong 266237, China
| | - Anran Sheng
- National Glycoengineering Research Center, Shandong University, Qingdao, Shandong 266237, China
| | - Naihan Han
- National Glycoengineering Research Center, Shandong University, Qingdao, Shandong 266237, China
| | - Zhenyu Tian
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital, Shandong University, Jinan, Shandong 250021, China
| | - Xiaowei Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital, Shandong University, Jinan, Shandong 250021, China
| | - Fuchuan Li
- National Glycoengineering Research Center, Shandong University, Qingdao, Shandong 266237, China
| | - Robert J Linhardt
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States
| | - Fuming Zhang
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States
| | - Lan Jin
- National Glycoengineering Research Center, Shandong University, Qingdao, Shandong 266237, China.
| | - Qunye Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital, Shandong University, Jinan, Shandong 250021, China.
| | - Lianli Chi
- National Glycoengineering Research Center, Shandong University, Qingdao, Shandong 266237, China.
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10
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Lemmens TP, Bröker V, Rijpkema M, Hughes CCW, Schurgers LJ, Cosemans JMEM. Fundamental considerations for designing endothelialized in vitro models of thrombosis. Thromb Res 2024; 236:179-190. [PMID: 38460307 DOI: 10.1016/j.thromres.2024.03.004] [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: 11/18/2023] [Revised: 02/19/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
Endothelialized in vitro models for cardiovascular disease have contributed greatly to our current understanding of the complex molecular mechanisms underlying thrombosis. To further elucidate these mechanisms, it is important to consider which fundamental aspects to incorporate into an in vitro model. In this review, we will focus on the design of in vitro endothelialized models of thrombosis. Expanding our understanding of the relation and interplay between the different pathways involved will rely in part on complex models that incorporate endothelial cells, blood, the extracellular matrix, and flow. Importantly, the use of tissue-specific endothelial cells will help in understanding the heterogeneity in thrombotic responses between different vascular beds. The dynamic and complex responses of endothelial cells to different shear rates underlines the importance of incorporating appropriate shear in in vitro models. Alterations in vascular extracellular matrix composition, availability of bioactive molecules, and gradients in concentration and composition of these molecules can all regulate the function of both endothelial cells and perivascular cells. Factors modulating these elements in in vitro models should therefore be considered carefully depending on the research question at hand. As the complexity of in vitro models increases, so can the variability. A bottom-up approach to designing such models will remain an important tool for researchers studying thrombosis. As new techniques are continuously being developed and new pathways are brought to light, research question-dependent considerations will have to be made regarding what aspects of thrombosis to include in in vitro models.
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Affiliation(s)
- Titus P Lemmens
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Vanessa Bröker
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Minke Rijpkema
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Christopher C W Hughes
- Department of Molecular Biology and Biochemistry, and Department of Biomedical Engineering, University of California, Irvine, USA
| | - Leon J Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Judith M E M Cosemans
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands.
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11
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Lisec B, Bozic T, Santek I, Markelc B, Vrecl M, Frangez R, Cemazar M. Characterization of two distinct immortalized endothelial cell lines, EA.hy926 and HMEC-1, for in vitro studies: exploring the impact of calcium electroporation, Ca 2+ signaling and transcriptomic profiles. Cell Commun Signal 2024; 22:118. [PMID: 38347539 PMCID: PMC10863159 DOI: 10.1186/s12964-024-01503-2] [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: 11/08/2023] [Accepted: 01/28/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Disruption of Ca2+ homeostasis after calcium electroporation (CaEP) in tumors has been shown to elicit an enhanced antitumor effect with varying impacts on healthy tissue, such as endothelium. Therefore, our study aimed to determine differences in Ca2+ kinetics and gene expression involved in the regulation of Ca2+ signaling and homeostasis, as well as effects of CaEP on cytoskeleton and adherens junctions of the established endothelial cell lines EA.hy926 and HMEC-1. METHODS CaEP was performed on EA.hy926 and HMEC-1 cells with increasing Ca2+ concentrations. Viability after CaEP was assessed using Presto Blue, while the effect on cytoskeleton and adherens junctions was evaluated via immunofluorescence staining (F-actin, α-tubulin, VE-cadherin). Differences in intracellular Ca2+ regulation ([Ca2+]i) were determined with spectrofluorometric measurements using Fura-2-AM, exposing cells to DPBS, ionomycin, thapsigargin, ATP, bradykinin, angiotensin II, acetylcholine, LaCl3, and GdCl3. Molecular distinctions were identified by analyzing differentially expressed genes and pathways related to the cytoskeleton and Ca2+ signaling through RNA sequencing. RESULTS EA.hy926 cells, at increasing Ca2+ concentrations, displayed higher CaEP susceptibility and lower survival than HMEC-1. Immunofluorescence confirmed CaEP-induced, time- and Ca2+-dependent morphological changes in EA.hy926's actin filaments, microtubules, and cell-cell junctions. Spectrofluorometric Ca2+ kinetics showed higher amplitudes in Ca2+ responses in EA.hy926 exposed to buffer, G protein coupled receptor agonists, bradykinin, and angiotensin II compared to HMEC-1. HMEC-1 exhibited significantly higher [Ca2+]i changes after ionomycin exposure, while responses to thapsigargin, ATP, and acetylcholine were similar in both cell lines. ATP without extracellular Ca2+ ions induced a significantly higher [Ca2+]i rise in EA.hy926, suggesting purinergic ionotropic P2X and metabotropic P2Y receptor activation. RNA-sequencing analysis showed significant differences in cytoskeleton- and Ca2+-related gene expression, highlighting upregulation of ORAI2, TRPC1, TRPM2, CNGA3, TRPM6, and downregulation of TRPV4 and TRPC4 in EA.hy926 versus HMEC-1. Moreover, KEGG analysis showed upregulated Ca2+ import and downregulated export genes in EA.hy926. CONCLUSIONS Our finding show that significant differences in CaEP response and [Ca2+]i regulation exist between EA.hy926 and HMEC-1, which may be attributed to distinct transcriptomic profiles. EA.hy926, compared to HMEC-1, displayed higher susceptibility and sensitivity to [Ca2+]i changes, which may be linked to overexpression of Ca2+-related genes and an inability to mitigate changes in [Ca2+]i. The study offers a bioinformatic basis for selecting EC models based on research objectives.
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Affiliation(s)
- Barbara Lisec
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000, Ljubljana, Slovenia
| | - Tim Bozic
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000, Ljubljana, Slovenia
| | - Iva Santek
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000, Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, SI-1000, Ljubljana, Slovenia
| | - Bostjan Markelc
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000, Ljubljana, Slovenia
| | - Milka Vrecl
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbiceva 60, SI-1000, Ljubljana, Slovenia
| | - Robert Frangez
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbiceva 60, SI-1000, Ljubljana, Slovenia
| | - Maja Cemazar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000, Ljubljana, Slovenia.
- Faculty of Health Sciences, University of Primorska, Polje 42, SI-6310, Izola, Slovenia.
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Wang AC, Qi XM, Li QF, Feng YJ, Zhang YL, Wei HZ, Li JS, Qiao YB, Li QS. Methionine redox regulation of actin-interacting proteins primarily governs antioxidative signaling and response to the salvianolic acid B treatment in EA.hy926 cells. Toxicol Appl Pharmacol 2024; 483:116835. [PMID: 38272317 DOI: 10.1016/j.taap.2024.116835] [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: 10/13/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 01/27/2024]
Abstract
Actin-interacting proteins are important molecules for filament assembly and cytoskeletal signaling within vascular endothelium. Disruption in their interactions causes endothelial pathogenesis through redox imbalance. Actin filament redox regulation remains largely unexplored, in the context of pharmacological treatment. This work focused on the peptidyl methionine (M) redox regulation of actin-interacting proteins, aiming at elucidating its role on governing antioxidative signaling and response. Endothelial EA.hy926 cells were subjected to treatment with salvianolic acid B (Sal B) and tert-butyl-hydroperoxide (tBHP) stimulation. Mass spectrometry was employed to characterize redox status of proteins, including actin, myosin-9, kelch-like erythroid-derived cap-n-collar homology-associated protein 1 (Keap1), plastin-3, prelamin-A/C and vimentin. The protein redox landscape revealed distinct stoichiometric ratios or reaction site transitions mediated by M sulfoxide reductase and reactive oxygen species. In comparison with effects of tBHP stimulation, Sal B treatment prevented oxidation at actin M325, myosin-9 M1489/1565, Keap1 M120, plastin-3 M592, prelamin-A/C M187/371/540 and vimentin M344. For Keap1, reaction site was transitioned within its scaffolding region to the actin ring. These protein M oxidation regulations contributed to the Sal B cytoprotective effects on actin filament. Additionally, regarding the Keap1 homo-dimerization region, Sal B preventive roles against M120 oxidation acted as a primary signal driver to activate nuclear factor erythroid 2-related factor 2 (Nrf2). Transcriptional splicing of non-POU domain-containing octamer-binding protein was validated during the Sal B-mediated overexpression of NAD(P)H dehydrogenase [quinone] 1. This molecular redox regulation of actin-interacting proteins provided valuable insights into the phenolic structures of Sal B analogs, showing potential antioxidative effects on vascular endothelium.
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Affiliation(s)
- Ai-Cheng Wang
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030619, China
| | - Xiao-Ming Qi
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030619, China.
| | - Qing-Fang Li
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030619, China
| | - Yi-Jia Feng
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030619, China
| | - Yuan-Lin Zhang
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030619, China.
| | - Hui-Zhi Wei
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030619, China; School of Public Health Science & Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, China.
| | - Jin-Shan Li
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030619, China
| | - Yuan-Biao Qiao
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030619, China.
| | - Qing-Shan Li
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030619, China; School of Public Health Science & Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, China.
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13
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Egorova A, Maretina M, Krylova I, Kiselev A. Polycondensed Peptide-Based Polymers for Targeted Delivery of Anti-Angiogenic siRNA to Treat Endometriosis. Int J Mol Sci 2023; 25:13. [PMID: 38203184 PMCID: PMC10778610 DOI: 10.3390/ijms25010013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/06/2023] [Accepted: 12/14/2023] [Indexed: 01/12/2024] Open
Abstract
Endometriosis (EM) is a prevalent gynecological disease characterized by the abnormal growth of tissue similar to the endometrium outside of the uterus. This condition is accompanied by the development of new blood vessels in endometriotic lesions. While surgical intervention is effective in removing endometriotic lesions, some patients require multiple surgeries. Therefore, finding non-surgical treatments for EM is of great interest. One of the promising approaches is anti-angiogenic therapy using siRNA-therapeutics to target the expression of the VEGFA gene. Peptide-based polymers have shown promise as siRNA delivery systems due to their biocompatibility and ease of modification. We conducted a study to evaluate the effectiveness of the R6p-cRGD peptide carrier as a non-viral vehicle for delivering siRNA to endothelial cells in vitro and endometrial implants in vivo. We investigated the physicochemical properties of the siRNA-complexes, assessed cellular toxicity, and examined the efficiency of GFP and VEGFA genes silencing. Furthermore, we tested the anti-angiogenic effects of these complexes in cellular and animal models. The transfection with siRNA complexes led to a significant increase in VEGFA gene knockdown efficiency and a decrease in the migration of endothelial cells. For the animal model, we induced endometriosis in rats by transplanting endometrial tissue subcutaneously. We evaluated the efficiency of anti-angiogenic therapy for EM in vivo using anti-VEGF siRNA/R6p-RGD complexes. During this assessment, we measured the volume of the implants, analyzed VEGFA gene expression, and conducted CD34 immunohistochemical staining. The results showed a significant decrease in the growth of endometriotic implants and in VEGFA gene expression. Overall, our findings demonstrate the potential of the R6p-cRGD peptide carrier as a delivery system for anti-angiogenic therapy of EM.
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Affiliation(s)
- Anna Egorova
- Laboratory of Molecular Genetics and Gene Therapy, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia; (A.E.); (M.M.)
| | - Marianna Maretina
- Laboratory of Molecular Genetics and Gene Therapy, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia; (A.E.); (M.M.)
| | - Iuliia Krylova
- Department of Pathology, Pavlov First Saint-Petersburg State Medical University, L’va Tolstogo Street 6-8, 197022 Saint-Petersburg, Russia;
| | - Anton Kiselev
- Laboratory of Molecular Genetics and Gene Therapy, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia; (A.E.); (M.M.)
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14
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Dahmani M, Zhu JC, Cook JH, Riley SP. Anaphylatoxin signaling activates macrophages to control intracellular Rickettsia proliferation. Microbiol Spectr 2023; 11:e0253823. [PMID: 37855623 PMCID: PMC10714731 DOI: 10.1128/spectrum.02538-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/11/2023] [Indexed: 10/20/2023] Open
Abstract
IMPORTANCE Pathogenic Rickettsia species are extremely dangerous bacteria that grow within the cytoplasm of host mammalian cells. In most cases, these bacteria are able to overpower the host cell and grow within the protected environment of the cytoplasm. However, a dramatic conflict occurs when Rickettsia encounter innate immune cells; the bacteria can "win" by taking over the host, or the bacteria can "lose" if the host cell efficiently fights the infection. This manuscript examines how the immune complement system is able to detect the presence of Rickettsia and alert nearby cells. Byproducts of complement activation called anaphylatoxins are signals that "activate" innate immune cells to mount an aggressive defensive strategy. This study enhances our collective understanding of the innate immune reaction to intracellular bacteria and will contribute to future efforts at controlling these dangerous infections.
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Affiliation(s)
- Mustapha Dahmani
- Department of Veterinary Medicine, University of Maryland-College Park, College Park, Maryland, USA
| | - Jinyi C. Zhu
- Department of Veterinary Medicine, University of Maryland-College Park, College Park, Maryland, USA
| | - Jack H. Cook
- Department of Veterinary Medicine, University of Maryland-College Park, College Park, Maryland, USA
| | - Sean P. Riley
- Department of Veterinary Medicine, University of Maryland-College Park, College Park, Maryland, USA
- Virginia-Maryland College of Veterinary Medicine, College Park, Maryland, USA
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15
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Hackemann VCJ, Hagel S, Jandt KD, Rödel J, Löffler B, Tuchscherr L. The Controversial Effect of Antibiotics on Methicillin-Sensitive S. aureus: A Comparative In Vitro Study. Int J Mol Sci 2023; 24:16308. [PMID: 38003500 PMCID: PMC10671744 DOI: 10.3390/ijms242216308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/06/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Methicillin-sensitive Staphylococcus (S.) aureus (MSSA) bacteremia remains a global challenge, despite the availability of antibiotics. Primary treatments include β-lactam agents such as cefazolin and flucloxacillin. Ongoing discussions have focused on the potential synergistic effects of combining these agents with rifampicin or fosfomycin to combat infections associated with biofilm formation. Managing staphylococcal infections is challenging due to antibacterial resistance, biofilms, and S. aureus's ability to invade and replicate within host cells. Intracellular invasion shields the bacteria from antibacterial agents and the immune system, often leading to incomplete bacterial clearance and chronic infections. Additionally, S. aureus can assume a dormant phenotype, known as the small colony variant (SCV), further complicating eradication and promoting persistence. This study investigated the impact of antibiotic combinations on the persistence of S. aureus 6850 and its stable small colony variant (SCV strain JB1) focusing on intracellular survival and biofilm formation. The results from the wild-type strain 6850 demonstrate that β-lactams combined with RIF effectively eliminated biofilms and intracellular bacteria but tend to select for SCVs in planktonic culture and host cells. Higher antibiotic concentrations were associated with an increase in the zeta potential of S. aureus, suggesting reduced membrane permeability to antimicrobials. When using the stable SCV mutant strain JB1, antibiotic combinations with rifampicin successfully cleared planktonic bacteria and biofilms but failed to eradicate intracellular bacteria. Given these findings, it is reasonable to report that β-lactams combined with rifampicin represent the optimal treatment for MSSA bacteremia. However, caution is warranted when employing this treatment over an extended period, as it may elevate the risk of selecting for small colony variants (SCVs) and, consequently, promoting bacterial persistence.
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Affiliation(s)
| | - Stefan Hagel
- Institute of Infectious Diseases and Infection Control, Jena University Hospital, 07747 Jena, Germany
| | - Klaus D Jandt
- Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena School for Microbial Communication (JSMC), 07743 Jena, Germany
| | - Jürgen Rödel
- Institute for Medical Microbiology, Jena University Hospital, 07747 Jena, Germany
| | - Bettina Löffler
- Institute for Medical Microbiology, Jena University Hospital, 07747 Jena, Germany
| | - Lorena Tuchscherr
- Institute for Medical Microbiology, Jena University Hospital, 07747 Jena, Germany
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16
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Rossmann C, Ranz C, Kager G, Ledinski G, Koestenberger M, Wonisch W, Wagner T, Schwaminger SP, Di Geronimo B, Hrzenjak A, Hallstöm S, Reibnegger G, Cvirn G, Paar M. Metformin Impedes Oxidation of LDL In Vitro. Pharmaceutics 2023; 15:2111. [PMID: 37631325 PMCID: PMC10459002 DOI: 10.3390/pharmaceutics15082111] [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: 06/22/2023] [Revised: 07/13/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
Metformin is the most commonly prescribed glucose-lowering drug for the treatment of type 2 diabetes. The aim of this study was to investigate whether metformin is capable of impeding the oxidation of LDL, a crucial step in the development of endothelial dysfunction and atherosclerosis. LDL was oxidized by addition of CuCl2 in the presence of increasing concentrations of metformin. The extent of LDL oxidation was assessed by measuring lipid hydroperoxide and malondialdehyde concentrations, relative electrophoretic mobilities, and oxidation-specific immune epitopes. Cytotoxicity of oxLDL in the vascular endothelial cell line EA.hy926 was assessed using the alamarBlue viability test. Quantum chemical calculations were performed to determine free energies of reactions between metformin and radicals typical for lipid oxidation. Metformin concentration-dependently impeded the formation of lipid hydroperoxides, malondialdehyde, and oxidation-specific immune epitopes when oxidation of LDL was initiated by addition of Cu2+. The cytotoxicity of oxLDL was reduced when it was obtained under increasing concentrations of metformin. The quantum chemical calculations revealed that only the reaction of metformin with hydroxyl radicals is exergonic, whereas the reactions with hydroperoxyl radicals or superoxide radical anions are endergonic. Metformin, beside its glucose-lowering effect, might be a suitable agent to impede the development of atherosclerosis and associated CVD. This is due to its capability to impede LDL oxidation, most likely by scavenging hydroxyl radicals.
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Affiliation(s)
- Christine Rossmann
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
| | - Cornelia Ranz
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
| | - Gerd Kager
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
| | - Gerhard Ledinski
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
| | - Martin Koestenberger
- Department of Pediatrics and Adolescent Medicine, Division of General Pediatrics, Medical University of Graz, 8010 Graz, Austria;
| | - Willibald Wonisch
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
| | - Thomas Wagner
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Graz, 8010 Graz, Austria;
| | - Sebastian P. Schwaminger
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
- BioTechMed Graz, 8010 Graz, Austria
| | - Bruno Di Geronimo
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
| | - Andelko Hrzenjak
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, 8010 Graz, Austria;
| | - Seth Hallstöm
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
- Division of Biomedical Research and Translational Medicine, Medical University of Vienna, 1090 Vienna, Austria
| | - Gilbert Reibnegger
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
| | - Gerhard Cvirn
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
| | - Margret Paar
- Division of Medicinal Chemistry, Otto Loewi Research Centre, Medical University of Graz, 8010 Graz, Austria; (C.R.); (C.R.); (G.K.); (G.L.); (W.W.); (S.P.S.); (B.D.G.); (S.H.); (G.R.); (M.P.)
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17
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Egorova A, Petrosyan M, Maretina M, Bazian E, Krylova I, Baranov V, Kiselev A. iRGD-Targeted Peptide Nanoparticles for Anti-Angiogenic RNAi-Based Therapy of Endometriosis. Pharmaceutics 2023; 15:2108. [PMID: 37631322 PMCID: PMC10459007 DOI: 10.3390/pharmaceutics15082108] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/04/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
Anti-angiogenic RNAi-based therapy can be considered as a possible strategy for the treatment of endometriosis (EM), which is the most common gynecological disease. Targeted delivery of siRNA therapeutics is a prerequisite for successful treatment without adverse effects. Here we evaluated the RGD1-R6 peptide carrier as a non-viral vehicle for targeted siRNA delivery to endothelial cells in vitro and endometrial implants in vivo. The physicochemical properties of the siRNA complexes, cellular toxicity, and GFP and VEGFA gene silencing efficiency were studied, and anti-angiogenic effects were proved in cellular and animal models. The modification of siRNA complexes with iRGD ligand resulted in a two-fold increase in gene knockdown efficiency and three-fold decrease in endothelial cells' migration in vitro. Modeling of EM in rats with the autotransplantation of endometrial tissue subcutaneously was carried out. Efficiency of anti-angiogenic EM therapy in vivo by anti-VEGF siRNA/RGD1-R6 complexes was evaluated by the implants' volume measurement, CD34 immunohistochemical staining, and VEGFA gene expression analysis. We observed a two-fold decrease in endometriotic implants growth and a two-fold decrease in VEGFA gene expression in comparison with saline-treated implants. RNAi-mediated therapeutic effects were comparable with Dienogest treatment efficiency in a rat EM model. Taken together, these findings demonstrate the advantages of RGD1-R6 peptide carrier as a delivery system for RNAi-based therapy of EM.
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Affiliation(s)
- Anna Egorova
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia; (A.E.)
| | - Mariya Petrosyan
- Pharmacology Group, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia
| | - Marianna Maretina
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia; (A.E.)
| | - Elena Bazian
- Pharmacology Group, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia
| | - Iuliia Krylova
- Department of Pathology, Pavlov First Saint-Petersburg State Medical University, L’va Tolstogo Street 6-8, 197022 Saint-Petersburg, Russia
| | - Vladislav Baranov
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia; (A.E.)
| | - Anton Kiselev
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Mendeleevskaya Line 3, 199034 Saint-Petersburg, Russia; (A.E.)
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18
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Liashkovich I, Stefanello ST, Vidyadharan R, Haufe G, Erofeev A, Gorelkin PV, Kolmogorov V, Mizdal CR, Dulebo A, Bulk E, Kouzel IU, Shahin V. Pitstop-2 and its novel derivative RVD-127 disrupt global cell dynamics and nuclear pores integrity by direct interaction with small GTPases. Bioeng Transl Med 2023; 8:e10425. [PMID: 37476059 PMCID: PMC10354767 DOI: 10.1002/btm2.10425] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/26/2022] [Accepted: 10/03/2022] [Indexed: 07/22/2023] Open
Abstract
Clathrin-mediated endocytosis (CME) is an essential cell physiological process of broad biomedical relevance. Since the recent introduction of Pitstop-2 as a potent CME inhibitor, we and others have reported on substantial clathrin-independent inhibitory effects. Herein, we developed and experimentally validated a novel fluorescent derivative of Pitstop-2, termed RVD-127, to clarify Pitstop-2 diverse effects. Using RVD-127, we were able to trace additional protein targets of Pitstop-2. Besides inhibiting CME, Pitstop-2 and RVD-127 proved to directly and reversibly bind to at least two members of the small GTPase superfamily Ran and Rac1 with particularly high efficacy. Binding locks the GTPases in a guanosine diphosphate (GDP)-like conformation disabling their interaction with their downstream effectors. Consequently, overall cell motility, mechanics and nucleocytoplasmic transport integrity are rapidly disrupted at inhibitor concentrations well below those required to significantly reduce CME. We conclude that Pitstop-2 is a highly potent, reversible inhibitor of small GTPases. The inhibition of these molecular switches of diverse crucial signaling pathways, including nucleocytoplasmic transport and overall cell dynamics and motility, clarifies the diversity of Pitstop-2 activities. Moreover, considering the fundamental importance and broad implications of small GTPases in physiology, pathophysiology and drug development, Pitstop-2 and RVD-127 open up novel avenues.
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Affiliation(s)
| | | | | | - Günter Haufe
- Organic Chemistry Institute, University of MünsterMünsterGermany
| | - Alexander Erofeev
- National University of Science and Technology «MISiS»MoscowRussia
- Department of ChemistryLomonosov Moscow State UniversityMoscowRussia
| | | | | | | | | | - Etmar Bulk
- Institute of Physiology II, University of MünsterMünsterGermany
| | | | - Victor Shahin
- Institute of Physiology II, University of MünsterMünsterGermany
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19
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Antoniak K, Studzińska-Sroka E, Szymański M, Dudek-Makuch M, Cielecka-Piontek J, Korybalska K. Antiangiogenic, Anti-Inflammatory and Antioxidant Properties of Bidens tripartite Herb, Galium verum Herb and Rumex hydrolapathum Root. Molecules 2023; 28:4966. [PMID: 37446627 DOI: 10.3390/molecules28134966] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/16/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
Plants are commonly used in folk medicine. Research indicates that the mechanisms of biological activity of plant extracts may be essential in the treatment of various diseases. In this respect, we decided to test the ethanolic extracts of Bidens tripartita herb (BTH), Galium verum herb (GVH), and Rumicis hydrolapathum root (RHR) on angiogenic, anti-inflammatory, and antioxidant properties and their total polyphenols content. In vitro studies using endothelial cells were used to see tested extracts' angiogenic/angiostatic and anti-inflammatory properties. The DPPH assay and FRAP analysis were used to detect antioxidant properties of extracts. The Folin-Ciocalteu analysis was used to determine the content of total polyphenols. The results of gas chromatography-mass spectrometry analysis was also presented. In vitro study demonstrated that BTH, GVH, and RHR ethanolic extracts significantly increased cell invasiveness, compared with the control group. Increased endothelial proangiogenic invasiveness was accompanied by reduced metalloproteinase inhibitor 1 (TIMP-1) and raised in metalloproteinase 9 (MMP-9). Only BTH and GVH significantly reduced cell proliferation, while BTH and RHR facilitated migration. Additionally, tested extracts reduced the production of proangiogenic platelet-derived growth factor (PDGF) and hepatocyte growth factor (HGF). The most potent anti-inflammatory capacity showed BTH and GVH, reducing proinflammatory interleukin 8 (CXCL8) and interleukin 6 (Il-6), compared to RHR extract that has slightly less inhibited CXCL8 production without affecting IL-6 production. Moreover, we confirmed the antioxidant properties of all examined extracts. The highest activity was characterized by RHR, which has been correlated with the high content of polyphenols. In conclusion, the modifying influence of examined extracts can be promising in disorders with pathogenesis related to angiogenesis, inflammation and free radicals formation. BTH is the best choice among the three tested extracts with its antiangiogenic and anti-inflammatory properties.
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Affiliation(s)
| | - Elżbieta Studzińska-Sroka
- Deparatment of Pharmacognosy and Biomaterials, Poznan University of Medical Science, Rokietnicka 3 Str., 60-806 Poznań, Poland
| | - Marcin Szymański
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10 Str., 61-614 Poznań, Poland
| | - Marlena Dudek-Makuch
- Regulatory Affairs Department, Curtis Health Caps S.A., Batorowska 52 Str., Wysogotowo, 62-081 Przeźmierowo, Poland
| | - Judyta Cielecka-Piontek
- Deparatment of Pharmacognosy and Biomaterials, Poznan University of Medical Science, Rokietnicka 3 Str., 60-806 Poznań, Poland
| | - Katarzyna Korybalska
- Department of Patophysiology, Poznań University of Medical Science, Rokietnicka 8 Str., 60-806 Poznań, Poland
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20
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Leidecker M, Bertling A, Hussain M, Bischoff M, Eble JA, Fender AC, Jurk K, Rumpf C, Herrmann M, Kehrel BE, Niemann S. Protein Disulfide Isomerase and Extracellular Adherence Protein Cooperatively Potentiate Staphylococcal Invasion into Endothelial Cells. Microbiol Spectr 2023; 11:e0388622. [PMID: 36995240 PMCID: PMC10269700 DOI: 10.1128/spectrum.03886-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 03/09/2023] [Indexed: 03/31/2023] Open
Abstract
Invasion of host cells is an important feature of Staphylococcus aureus. The main internalization pathway involves binding of the bacteria to host cells, e.g., endothelial cells, via a fibronectin (Fn) bridge between S. aureus Fn binding proteins and α5β1-integrin, followed by phagocytosis. The secreted extracellular adherence protein (Eap) has been shown to promote this cellular uptake pathway of not only S. aureus, but also of bacteria otherwise poorly taken up by host cells, such as Staphylococcus carnosus. The exact mechanisms are still unknown. Previously, we demonstrated that Eap induces platelet activation by stimulation of the protein disulfide isomerase (PDI), a catalyst of thiol-disulfide exchange reactions. Here, we show that Eap promotes PDI activity on the surface of endothelial cells, and that this contributes critically to Eap-driven staphylococcal invasion. PDI-stimulated β1-integrin activation followed by increased Fn binding to host cells likely accounts for the Eap-enhanced uptake of S. aureus into non-professional phagocytes. Additionally, Eap supports the binding of S. carnosus to Fn-α5β1 integrin, thereby allowing its uptake into endothelial cells. To our knowledge, this is the first demonstration that PDI is crucial for the uptake of bacteria into host cells. We describe a hitherto unknown function of Eap-the promotion of an enzymatic activity with subsequent enhancement of bacterial uptake-and thus broaden mechanistic insights into its importance as a driver of bacterial pathogenicity. IMPORTANCE Staphylococcus aureus can invade and persist in non-professional phagocytes, thereby escaping host defense mechanisms and antibiotic treatment. The intracellular lifestyle of S. aureus contributes to the development of infection, e.g., in infective endocarditis or chronic osteomyelitis. The extracellular adherence protein secreted by S. aureus promotes its own internalization as well as that of bacteria that are otherwise poorly taken up by host cells, such as Staphylococcus carnosus. In our study, we demonstrate that staphylococcal uptake by endothelial cells requires catalytic disulfide exchange activity by the cell-surface protein disulfide isomerase, and that this critical enzymatic function is enhanced by Eap. The therapeutic application of PDI inhibitors has previously been investigated in the context of thrombosis and hypercoagulability. Our results add another intriguing possibility: therapeutically targeting PDI, i.e., as a candidate approach to modulate the initiation and/or course of S. aureus infectious diseases.
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Affiliation(s)
- Marleen Leidecker
- Institute of Medical Microbiology, University Hospital of Münster, Münster, Germany
| | - Anne Bertling
- Department of Anaesthesiology and Intensive Care, Experimental and Clinical Haemostasis, University Hospital of Münster, Münster, Germany
| | - Muzaffar Hussain
- Institute of Medical Microbiology, University Hospital of Münster, Münster, Germany
| | - Markus Bischoff
- Institute of Medical Microbiology and Hygiene, Saarland University, Homburg, Germany
| | - Johannes A. Eble
- Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany
| | - Anke C. Fender
- Department of Anaesthesiology and Intensive Care, Experimental and Clinical Haemostasis, University Hospital of Münster, Münster, Germany
- Institute of Pharmacology, University Hospital Essen, Essen, Germany
| | - Kerstin Jurk
- Department of Anaesthesiology and Intensive Care, Experimental and Clinical Haemostasis, University Hospital of Münster, Münster, Germany
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Christine Rumpf
- Institute of Medical Microbiology, University Hospital of Münster, Münster, Germany
| | - Mathias Herrmann
- Institute of Medical Microbiology, University Hospital of Münster, Münster, Germany
| | - Beate E. Kehrel
- Department of Anaesthesiology and Intensive Care, Experimental and Clinical Haemostasis, University Hospital of Münster, Münster, Germany
| | - Silke Niemann
- Institute of Medical Microbiology, University Hospital of Münster, Münster, Germany
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21
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Kuntic I, Kuntic M, Oelze M, Stamm P, Karpi A, Kleinert H, Hahad O, Münzel T, Daiber A. The role of acrolein for E-cigarette vapour condensate mediated activation of NADPH oxidase in cultured endothelial cells and macrophages. Pflugers Arch 2023:10.1007/s00424-023-02825-9. [PMID: 37285062 DOI: 10.1007/s00424-023-02825-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/08/2023]
Abstract
Electronic cigarettes (E-cigarettes) have recently become a popular alternative to traditional tobacco cigarettes. Despite being marketed as a healthier alternative, increasing evidence shows that E-cigarette vapour could cause adverse health effects. It has been postulated that degradation products of E-cigarette liquid, mainly reactive aldehydes, are responsible for those effects. Previously, we have demonstrated that E-cigarette vapour exposure causes oxidative stress, inflammation, apoptosis, endothelial dysfunction and hypertension by activating NADPH oxidase in a mouse model. To better understand oxidative stress mechanisms, we have exposed cultured endothelial cells and macrophages to condensed E-cigarette vapour (E-cigarette condensate) and acrolein. In both endothelial cells (EA.hy 926) and macrophages (RAW 264.7), we have observed that E-cigarette condensate incubation causes cell death. Since recent studies have shown that among toxic aldehydes found in E-cigarette vapour, acrolein plays a prominent role, we have incubated the same cell lines with increasing concentrations of acrolein. Upon incubation with acrolein, a translocation of Rac1 to the plasma membrane has been observed, accompanied by an increase in oxidative stress. Whereas reactive oxygen species (ROS) formation by acrolein in cultured endothelial cells was mainly intracellular, the release of ROS in cultured macrophages was both intra- and extracellular. Our data also demonstrate that acrolein activates the nuclear factor erythroid 2-related factor 2 (Nrf2) antioxidant pathway and, in general, could mediate E-cigarette vapour-induced oxidative stress and cell death. More mechanistic insight is needed to clarify the toxicity associated with E-cigarette consumption and the possible adverse effects on human health.
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Affiliation(s)
- Ivana Kuntic
- Department for Cardiology 1, University Medical Center Mainz, Molecular Cardiology, Geb. 605, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Marin Kuntic
- Department for Cardiology 1, University Medical Center Mainz, Molecular Cardiology, Geb. 605, Langenbeckstr. 1, 55131, Mainz, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Rhine-Main, Mainz, Germany
| | - Matthias Oelze
- Department for Cardiology 1, University Medical Center Mainz, Molecular Cardiology, Geb. 605, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Paul Stamm
- Department for Cardiology 1, University Medical Center Mainz, Molecular Cardiology, Geb. 605, Langenbeckstr. 1, 55131, Mainz, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Rhine-Main, Mainz, Germany
| | - Angelica Karpi
- Department for Cardiology 1, University Medical Center Mainz, Molecular Cardiology, Geb. 605, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Hartmut Kleinert
- Department of Pharmacology, University Medical Center, Mainz, Germany
| | - Omar Hahad
- Department for Cardiology 1, University Medical Center Mainz, Molecular Cardiology, Geb. 605, Langenbeckstr. 1, 55131, Mainz, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Rhine-Main, Mainz, Germany
| | - Thomas Münzel
- Department for Cardiology 1, University Medical Center Mainz, Molecular Cardiology, Geb. 605, Langenbeckstr. 1, 55131, Mainz, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Rhine-Main, Mainz, Germany
| | - Andreas Daiber
- Department for Cardiology 1, University Medical Center Mainz, Molecular Cardiology, Geb. 605, Langenbeckstr. 1, 55131, Mainz, Germany.
- DZHK (German Center for Cardiovascular Research), Partner Site Rhine-Main, Mainz, Germany.
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Oon CE, Subramaniam AV, Ooi LY, Yehya AHS, Lee YT, Kaur G, Sasidharan S, Qiu B, Wang X. BZD9L1 benzimidazole analogue hampers colorectal tumor progression by impeding angiogenesis. World J Gastrointest Oncol 2023; 15:810-827. [PMID: 37275453 PMCID: PMC10237024 DOI: 10.4251/wjgo.v15.i5.810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/17/2023] [Accepted: 04/21/2023] [Indexed: 05/12/2023] Open
Abstract
BACKGROUND The development of new vasculatures (angiogenesis) is indispensable in supplying oxygen and nutrients to fuel tumor growth. Epigenetic dysregulation in the tumor vasculature is critical to colorectal cancer (CRC) progression. Sirtuin (SIRT) enzymes are highly expressed in blood vessels. BZD9L1 benzimidazole analogue is a SIRT 1 and 2 inhibitor with reported anticancer activities in CRC. However, its role has yet to be explored in CRC tumor angiogenesis.
AIM To investigate the anti-angiogenic potential of BZD9L1 on endothelial cells (EC) in vitro, ex vivo and in HCT116 CRC xenograft in vivo models.
METHODS EA.hy926 EC were treated with half inhibitory concentration (IC50) (2.5 μM), IC50 (5.0 μM), and double IC50 (10.0 μM) of BZD9L1 and assessed for cell proliferation, adhesion and SIRT 1 and 2 protein expression. Next, 2.5 μM and 5.0 μM of BZD9L1 were employed in downstream in vitro assays, including cell cycle, cell death and sprouting in EC. The effect of BZD9L1 on cell adhesion molecules and SIRT 1 and 2 were assessed via real-time quantitative polymerase chain reaction (qPCR). The growth factors secreted by EC post-treatment were evaluated using the Quantibody Human Angiogenesis Array. Indirect co-culture with HCT116 CRC cells was performed to investigate the impact of growth factors modulated by BZD9L1-treated EC on CRC. The effect of BZD9L1 on sprouting impediment and vessel regression was determined using mouse choroids. HCT116 cells were also injected subcutaneously into nude mice and analyzed for the outcome of BZD9L1 on tumor necrosis, Ki67 protein expression indicative of proliferation, cluster of differentiation 31 (CD31) and CD34 EC markers, and SIRT 1 and 2 genes via hematoxylin and eosin, immunohistochemistry and qPCR, respectively.
RESULTS BZD9L1 impeded EC proliferation, adhesion, and spheroid sprouting through the downregulation of intercellular adhesion molecule 1, vascular endothelial cadherin, integrin-alpha V, SIRT1 and SIRT2 genes. The compound also arrested the cells at G1 phase and induced apoptosis in the EC. In mouse choroids, BZD9L1 inhibited sprouting and regressed sprouting vessels compared to the negative control. Compared to the negative control, the compound also reduced the protein levels of angiogenin, basic fibroblast growth factor, platelet-derived growth factor and placental growth factor, which then inhibited HCT116 CRC spheroid invasion in co-culture. In addition, a significant reduction in CRC tumor growth was noted alongside the downregulation of human SIRT1 (hSIRT1), hSIRT2, CD31, and CD34 EC markers and murine SIRT2 gene, while the murine SIRT1 gene remained unaffected, compared to vehicle control. Histology analyses revealed that BZD9L1 at low (50 mg/kg) and high (250 mg/kg) doses reduced Ki-67 protein expression, while BZD9L1 at the high dose diminished tumor necrosis compared to vehicle control.
CONCLUSION These results highlighted the anti-angiogenic potential of BZD9L1 to reduce CRC tumor progression. Furthermore, together with previous anticancer findings, this study provides valuable insights into the potential of BZD9L1 to co-target CRC tumor vasculatures and cancer cells via SIRT1 and/or SIRT2 down-regulation to improve the therapeutic outcome.
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Affiliation(s)
- Chern Ein Oon
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Ayappa V Subramaniam
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Lik Yang Ooi
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Ashwaq Hamid Salem Yehya
- Cancer Research, Eman Biodiscoveries, Kedah 08000, Malaysia
- Vatche and Tamar Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA 90095, United States
| | - Yeuan Ting Lee
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Gurjeet Kaur
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Sreenivasan Sasidharan
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Beiying Qiu
- Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore 169857, Singapore
- Singapore National Eye Centre, Singapore Eye Research Institute, Singapore 168751, Singapore
| | - Xiaomeng Wang
- Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore 169857, Singapore
- Singapore National Eye Centre, Singapore Eye Research Institute, Singapore 169857, Singapore
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23
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Tang H, Zhang D, Jiang F, Yu L, Tang H, Zhu J, Wu S, Niu H. Enhancement of Cell Adhesion by Anaplasma phagocytophilum Nucleolin-Interacting Protein AFAP. J Pers Med 2023; 13:jpm13020302. [PMID: 36836536 PMCID: PMC9965380 DOI: 10.3390/jpm13020302] [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: 11/27/2022] [Revised: 02/05/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Anaplasma phagocytophilum, the aetiologic agent of human granulocytic anaplasmosis (HGA), is an obligate intracellular Gram-negative bacterium. During infection, A. phagocytophilum enhances the adhesion of neutrophils to the infected endothelial cells. However, the bacterial factors contributing to this phenomenon remain unknown. In this study, we characterized a type IV secretion system substrate of A. phagocytophilum, AFAP (an actin filament-associated Anaplasma phagocytophilum protein) and found that it dynamically changed its pattern and subcellular location in cells and enhanced cell adhesion. Tandem affinity purification combined with mass spectrometry identified host nucleolin as an AFAP-interacting protein. Further study showed the disruption of nucleolin by RNA interference, and the treatment of a nucleolin-binding DNA aptamer AS1411 attenuated AFAP-mediated cell adhesion, indicating that AFAP enhanced cell adhesion in a nucleolin-dependent manner. The characterization of cell adhesion-enhancing AFAP and the identification of host nucleolin as its interaction partner may help understand the mechanism underlying A. phagocytophilum-promoting cell adhesion, facilitating the elucidation of HGA pathogenesis.
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Affiliation(s)
- Hongcheng Tang
- Department of Microbiology, School of Biology & Basic Medical Sciences, Soochow University, Suzhou 215123, China
| | - Daxiu Zhang
- Clinical Laboratory Center, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - Fenfen Jiang
- Laboratory of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - Lifeng Yu
- Clinical Laboratory Center, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - Hui Tang
- Clinical Laboratory Center, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - Jiafeng Zhu
- Department of Microbiology, School of Biology & Basic Medical Sciences, Soochow University, Suzhou 215123, China
| | - Shuyan Wu
- Department of Microbiology, School of Biology & Basic Medical Sciences, Soochow University, Suzhou 215123, China
| | - Hua Niu
- Laboratory of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
- Guangxi Key Laboratory of Molecular Medicine in Liver Injury and Repair, Guilin Medical University, Guilin 541001, China
- Guangxi Health Commission Key Laboratory of Basic Research in Sphingolipid Metabolism Related Diseases, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
- Correspondence:
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Sesamin Attenuates VEGFA-Induced Angiogenesis via Inhibition of Src and FAK Signaling in Chick Chorioallantoic Membrane Model and Human Endothelial EA.hy926 Cells. Biomedicines 2023; 11:biomedicines11010188. [PMID: 36672695 PMCID: PMC9855418 DOI: 10.3390/biomedicines11010188] [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: 11/22/2022] [Revised: 01/06/2023] [Accepted: 01/07/2023] [Indexed: 01/13/2023] Open
Abstract
Sesamin, a major phytochemical in sesame seeds and oil, has been reported to have effects on physiological and pathological angiogenesis in several studies. Nevertheless, the underlying mechanisms of sesamin's effect on angiogenesis are not understood well enough. This study aimed to investigate its effect on both physiological and pathological angiogenesis using the in vivo chick chorioallantoic membrane (CAM) model and the in vitro human endothelial cell line, EA.hy926, model. Sesamin inhibited the VEGFA-induced pathological angiogenesis significantly, although no effect was seen on angiogenesis without induction. It reduced the formation of vascular branches in the VEGFA-treated CAMs and also the proliferation and migration of EA.hy926 endothelial cells induced by VEGFA. Sesamin impeded the VEGF-mediated activation of Src and FAK signaling proteins, which may be responsible for sesamin-mediated reduction of pathological angiogenesis. Moreover, the effect of sesamin on the expressions of angiogenesis-related genes was then investigated and it was found that both mRNA and protein expressions of Notch1, the key pathway in vascular development, induced by VEGFA, were significantly reduced by sesamin. Our results altogether suggested that sesamin, by inhibiting pathological angiogenesis, has the potential to be employed in the prevention or treatment of diseases with over-angiogenesis, such as cancers.
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25
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Deep Semantic Segmentation of Angiogenesis Images. Int J Mol Sci 2023; 24:ijms24021102. [PMID: 36674617 PMCID: PMC9866671 DOI: 10.3390/ijms24021102] [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: 12/18/2022] [Revised: 12/31/2022] [Accepted: 01/02/2023] [Indexed: 01/09/2023] Open
Abstract
Angiogenesis is the development of new blood vessels from pre-existing ones. It is a complex multifaceted process that is essential for the adequate functioning of human organisms. The investigation of angiogenesis is conducted using various methods. One of the most popular and most serviceable of these methods in vitro is the short-term culture of endothelial cells on Matrigel. However, a significant disadvantage of this method is the manual analysis of a large number of microphotographs. In this regard, it is necessary to develop a technique for automating the annotation of images of capillary-like structures. Despite the increasing use of deep learning in biomedical image analysis, as far as we know, there still has not been a study on the application of this method to angiogenesis images. To the best of our knowledge, this article demonstrates the first tool based on a convolutional Unet++ encoder-decoder architecture for the semantic segmentation of in vitro angiogenesis simulation images followed by the resulting mask postprocessing for data analysis by experts. The first annotated dataset in this field, AngioCells, is also being made publicly available. To create this dataset, participants were recruited into a markup group, an annotation protocol was developed, and an interparticipant agreement study was carried out.
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Lee MJ, Lee J, Kang SK, Wirth D, Yoo SM, Park C, Lee MS. CXCL1 confers a survival advantage in Kaposi's sarcoma-associated herpesvirus-infected human endothelial cells through STAT3 phosphorylation. J Med Virol 2023; 95. [PMID: 35869037 DOI: 10.1002/jmv.28020] [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: 06/03/2022] [Revised: 07/05/2022] [Accepted: 07/20/2022] [Indexed: 01/11/2023]
Abstract
Many cytokines produced by Kaposi's sarcoma-associated herpesvirus (KSHV)-infected cells have been shown to participate in the pathogenesis of KSHV. Determination of the exact role of cytokines in Kaposi's sarcoma (KS) pathogenesis is limited, however, by the difficulty to manipulate the target genes in human endothelial cells. In this study, we sought to elucidate the role of cytokines in KSHV-infected human immortalized endothelial cell line (HuARLT cells) by knockout (KO) of the corresponding target genes using the CRISPR/Cas9 system. The cytokine production profile of KSHV-infected HuARLT cells was analyzed using a protein array, and several cytokines were found to be highly upregulated following KSHV infection. This study focused on CXCL1, which was investigated by knocked out in HuARLT cells. KSHV-infected CXCL1 KO cells underwent increased cell death compared to KSHV-infected wild-type (WT) cells and mock-infected CXCL1 KO cells. Lytic replication was not observed in KSHV-infected WT nor CXCL1 KO cells. Phosphorylation of STAT3 was significantly suppressed in KSHV-infected CXCL1 KO cells. Additionally, inhibitors of STAT3 and CXCL1 induced cell death in KSHV-infected endothelial cells. Our results show that CXCL1 production is required for the survival of KSHV-infected endothelial cells, and the CXCL1 to STAT3 phosphorylation signaling pathway may be a therapeutic target for KS.
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Affiliation(s)
- Myung-Ju Lee
- Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Jisu Lee
- Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Su-Kyung Kang
- Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Dagmar Wirth
- Model Systems for Infection and Immunity, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Seung-Min Yoo
- Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Changhoon Park
- Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, Republic of Korea
| | - Myung-Shin Lee
- Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, Republic of Korea
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Abstract
The angiogenesis process was described in its basic concepts in the works of the Scottish surgeon John Hunter and terminologically assessed in the early twentieth century. An aberrant angiogenesis is a prerequisite for cancer cells in solid tumors to grow and metastasize. The sprouting of new blood vessels is one of the major characteristics of cancer and represents a gateway for tumor cells to enter both the blood and lymphatic circulation systems. In vivo, ex vivo, and in vitro models of angiogenesis have provided essential tools for cancer research and antiangiogenic drug screening. Several in vivo studies have been performed to investigate the various steps of tumor angiogenesis and in vitro experiments contributed to dissecting the molecular bases of this phenomenon. Moreover, coculture of cancer and endothelial cells in 2D and 3D matrices have contributed to improve the recapitulation of the complex process of tumor angiogenesis, including the peculiar conditions of tumor microenvironment.
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Affiliation(s)
- Gianfranco Natale
- Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, Pisa, Italy
- Museum of Human Anatomy "Filippo Civinini", School of Medicine, University of Pisa, Pisa, Italy
| | - Guido Bocci
- Department of Clinical and Experimental Medicine, School of Medicine, University of Pisa, Pisa, Italy.
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Cognasse F, Hamzeh-Cognasse H, Rosa M, Corseaux D, Bonneaudeau B, Pierre C, Huet J, Arthaud CA, Eyraud MA, Prier A, Duchez AC, Ebermeyer T, Heestermans M, Audoux-Caire E, Philippot Q, Le Voyer T, Hequet O, Fillet AM, Chavarin P, Legrand D, Richard P, Pirenne F, Gallian P, Casanova JL, Susen S, Morel P, Lacombe K, Bastard P, Tiberghien P. Inflammatory markers and auto-Abs to type I IFNs in COVID-19 convalescent plasma cohort study. EBioMedicine 2022; 87:104414. [PMID: 36535107 PMCID: PMC9758484 DOI: 10.1016/j.ebiom.2022.104414] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 11/10/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND COVID-19 convalescent plasma (CCP) contains neutralising anti-SARS-CoV-2 antibodies that may be useful as COVID-19 passive immunotherapy in patients at risk of developing severe disease. Such plasma from convalescent patients may also have additional immune-modulatory properties when transfused to COVID-19 patients. METHODS CCP (n = 766) was compared to non-convalescent control plasma (n = 166) for soluble inflammatory markers, ex-vivo inflammatory bioactivity on endothelial cells, neutralising auto-Abs to type I IFNs and reported adverse events in the recipients. FINDINGS CCP exhibited a statistically significant increase in IL-6 and TNF-alpha levels (0.531 ± 0.04 vs 0.271 ± 0.04; (95% confidence interval [CI], 0.07371-0.4446; p = 0.0061) and 0.900 ± 0.07 vs 0.283 ± 0.07 pg/mL; (95% [CI], 0.3097-0.9202; p = 0.0000829) and lower IL-10 (0.731 ± 0.07 vs 1.22 ± 0.19 pg/mL; (95% [CI], -0.8180 to -0.1633; p = 0.0034) levels than control plasma. Neutralising auto-Abs against type I IFNs were detected in 14/766 (1.8%) CCPs and were not associated with reported adverse events when transfused. Inflammatory markers and bioactivity in CCP with or without auto-Abs, or in CCP whether or not linked to adverse events in transfused patients, did not differ to a statistically significant extent. INTERPRETATION Overall, CCP exhibited moderately increased inflammatory markers compared to the control plasma with no discernible differences in ex-vivo bioactivity. Auto-Abs to type I IFNs detected in a small fraction of CCP were not associated with reported adverse events or differences in inflammatory markers. Additional studies, including careful clinical evaluation of patients treated with CCP, are required in order to further define the clinical relevance of these findings. FUNDING French National Blood Service-EFS, the Association "Les Amis de Rémi" Savigneux, France, the "Fondation pour la Recherche Médicale (Medical Research Foundation)-REACTing 2020".
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Affiliation(s)
- Fabrice Cognasse
- Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France,Univ Jean Monnet, Mines Saint-Étienne, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France,Corresponding author. Etablissement Français du Sang Auvergne-Rhône-Alpes, INSERM U1059, Campus Santé Innovation - 10 rue de la Marandière, 42270, Saint-Priest-en-Jarez, France.
| | - Hind Hamzeh-Cognasse
- Univ Jean Monnet, Mines Saint-Étienne, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France
| | - Mickael Rosa
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, CNRS, U1011- EGID, F-59000 Lille, France,Centre National de la Recherche Scientifique (National Scientific Research Centre), Surgical Critical Care, Department of Anaesthesiology and Critical Care, U1019 - Unité Mixte de Recherche 9017 (Mixed Research Unit 9017) – Lille Centre for Infection and Immunity, France
| | - Delphine Corseaux
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, CNRS, U1011- EGID, F-59000 Lille, France,Centre National de la Recherche Scientifique (National Scientific Research Centre), Surgical Critical Care, Department of Anaesthesiology and Critical Care, U1019 - Unité Mixte de Recherche 9017 (Mixed Research Unit 9017) – Lille Centre for Infection and Immunity, France
| | | | - Chloe Pierre
- Etablissement Français du Sang, La Plaine, St Denis, France
| | - Julie Huet
- Etablissement Français du Sang, La Plaine, St Denis, France
| | - Charles Antoine Arthaud
- Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France,Univ Jean Monnet, Mines Saint-Étienne, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France
| | - Marie Ange Eyraud
- Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France,Univ Jean Monnet, Mines Saint-Étienne, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France
| | - Amélie Prier
- Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France,Univ Jean Monnet, Mines Saint-Étienne, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France
| | - Anne Claire Duchez
- Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France,Univ Jean Monnet, Mines Saint-Étienne, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France
| | - Theo Ebermeyer
- Univ Jean Monnet, Mines Saint-Étienne, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France
| | - Marco Heestermans
- Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France,Univ Jean Monnet, Mines Saint-Étienne, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France
| | - Estelle Audoux-Caire
- Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France,Univ Jean Monnet, Mines Saint-Étienne, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France
| | - Quentin Philippot
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163 (National Institute for Health and Medical Research), Necker Hospital for Sick Children, Paris, France,University of Paris, Imagine Institute, Paris, France
| | - Tom Le Voyer
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163 (National Institute for Health and Medical Research), Necker Hospital for Sick Children, Paris, France,University of Paris, Imagine Institute, Paris, France
| | - Olivier Hequet
- Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France
| | | | - Patricia Chavarin
- Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France
| | - Dominique Legrand
- Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France
| | | | - France Pirenne
- Univ Paris Est Creteil, INSERM U955, Institut Mondor de Recherche Biomédicale (Mondor Biomedical Research Institute) (IMRB), Creteil, France & Laboratory of Excellence GR-Ex, Paris, France
| | - Pierre Gallian
- Etablissement Français du Sang, La Plaine, St Denis, France,UMR “Unité des Virus Emergents” (Emerging Virus Unit), Aix-Marseille University - IRD 190 - INSERM 1207 - IRBA - EFS - IHU Méditerranée Infection, Marseille, France
| | - Jean Laurent Casanova
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163 (National Institute for Health and Medical Research), Necker Hospital for Sick Children, Paris, France,University of Paris, Imagine Institute, Paris, France,St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA,Howard Hughes Medical Institute, New York, NY, USA
| | - Sophie Susen
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, CNRS, U1011- EGID, F-59000 Lille, France,Centre National de la Recherche Scientifique (National Scientific Research Centre), Surgical Critical Care, Department of Anaesthesiology and Critical Care, U1019 - Unité Mixte de Recherche 9017 (Mixed Research Unit 9017) – Lille Centre for Infection and Immunity, France
| | - Pascal Morel
- Etablissement Français du Sang, La Plaine, St Denis, France
| | - Karine Lacombe
- Sorbonne University, Inserm IPLESP, Infectious Diseases Department, Saint-Antoine Hospital, APHP (University Hospital Trust), Paris, France
| | - Paul Bastard
- Etablissement Français du Sang, La Plaine, St Denis, France,Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163 (National Institute for Health and Medical Research), Necker Hospital for Sick Children, Paris, France,St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Pierre Tiberghien
- Etablissement Français du Sang, La Plaine, St Denis, France,UMR RIGHT U1098, INSERM, Etablissement Français du Sang, University of Franche-Comté, Besançon, France
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Slowey C, Nyhan D. The Vascular System: Anatomical, Physiological, Pathological, and Aging Considerations. Anesthesiol Clin 2022; 40:557-574. [PMID: 36328615 DOI: 10.1016/j.anclin.2022.08.004] [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] [Indexed: 06/16/2023]
Abstract
The vascular system is one of the earliest recognized anatomical systems. It is composed of 3 parts; arterial, capillary, and venous, each with their own unique anatomy and physiology. Blood flow through this system is compromised in aging, atherosclerosis and peripheral vascular disease, and the practicing anesthesiologist must understand both the physiology and pathophysiology of the vascular tree.
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Affiliation(s)
- Charlie Slowey
- Johns Hopkins Department of Anesthesiology and Critical Care Medicine, 600 North Wolf Street, Baltimore, MD 21287, USA.
| | - Daniel Nyhan
- Johns Hopkins Department of Anesthesiology and Critical Care Medicine, 600 North Wolf Street, Baltimore, MD 21287, USA
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Sodium Thiosulphate-Loaded Liposomes Control Hydrogen Sulphide Release and Retain Its Biological Properties in Hypoxia-like Environment. Antioxidants (Basel) 2022; 11:antiox11112092. [DOI: 10.3390/antiox11112092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/09/2022] [Accepted: 10/18/2022] [Indexed: 11/16/2022] Open
Abstract
Hypoxia, or insufficient oxygen availability is a common feature in the development of a myriad of cardiovascular-related conditions including ischemic disease. Hydrogen sulphide (H2S) donors, such as sodium thiosulphate (STS), are known for their cardioprotective properties. However, H2S due to its gaseous nature, is released and cleared rapidly, limiting its potential translation to clinical settings. For the first time, we developed and characterised liposome formulations encapsulating STS and explored their potential for modulating STS uptake, H2S release and the ability to retain pro-angiogenic and biological signals in a hypoxia-like environment mirroring oxygen insufficiency in vitro. Liposomes were prepared by varying lipid ratios and characterised for size, polydispersity and charge. STS liposomal encapsulation was confirmed by HPLC-UV detection and STS uptake and H2S release was assessed in vitro. To mimic hypoxia, cobalt chloride (CoCl2) was administered in conjunction with formulated and non-formulated STS, to explore pro-angiogenic and metabolic signals. Optimised liposomal formulation observed a liposome diameter of 146.42 ± 7.34 nm, a polydispersity of 0.22 ± 0.19, and charge of 3.02 ± 1.44 mV, resulting in 25% STS encapsulation. Maximum STS uptake (76.96 ± 3.08%) from liposome encapsulated STS was determined at 24 h. Co-exposure with CoCl2 and liposome encapsulated STS resulted in increased vascular endothelial growth factor mRNA as well as protein expression, enhanced wound closure and increased capillary-like formation. Finally, liposomal STS reversed metabolic switch induced by hypoxia by enhancing mitochondrial bioenergetics. These novel findings provide evidence of a feasible controlled-delivery system for STS, thus H2S, using liposome-based nanoparticles. Likewise, data suggests that in scenarios of hypoxia, liposomal STS is a good therapeutic candidate to sustain pro-angiogenic signals and retain metabolic functions that might be impaired by limited oxygen and nutrient availability.
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Cognasse F, Hamzeh-Cognasse H, Duchez AC, Shurko N, Eyraud MA, Arthaud CA, Prier A, Heestermans M, Hequet O, Bonneaudeau B, Rochette-Eribon S, Teyssier F, Barlet-Excoffier V, Chavarin P, Legrand D, Richard P, Morel P, Mooney N, Tiberghien P. Inflammatory profile of convalescent plasma to treat COVID: Impact of amotosalen/UVA pathogen reduction technology. Front Immunol 2022; 13:1034379. [PMID: 36275757 PMCID: PMC9585295 DOI: 10.3389/fimmu.2022.1034379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Blood products in therapeutic transfusion are now commonly acknowledged to contain biologically active constituents during the processes of preparation. In the midst of a worldwide COVID-19 pandemic, preliminary evidence suggests that convalescent plasma may lessen the severity of COVID-19 if administered early in the disease, particularly in patients with profound B-cell lymphopenia and prolonged COVID-19 symptoms. This study examined the influence of photochemical Pathogen Reduction Treatment (PRT) using amotosalen‐HCl and UVA light in comparison with untreated control convalescent plasma (n= 72 – paired samples) - cFFP, regarding soluble inflammatory factors: sCD40L, IFN-alpha, IFN-beta, IFN-gamma, IL-1 beta, IL-6, IL-8, IL-10, IL-18, TNF-alpha and ex-vivo inflammatory bioactivity on endothelial cells. We didn’t observe significant modulation of the majority of inflammatory soluble factors (8 of 10 molecules tested) pre- or post-PRT. We noted that IL-8 concentrations were significantly decreased in cFFP with PRT, whereas the IL-18 concentration was increased by PRT. In contrast, endothelial cell release of IL-6 was similar whether cFFP was pre-treated with or without PRT. Expression of CD54 and CD31 in the presence of cFFP were similar to control levels, and both were significant decreased in when cFFP had been pre-treated by PRT. It will be interesting to continue investigations of IL-18 and IL-8, and the physiopathological effect of PRT- treated convalescent plasma and in clinical trials. But overall, it appears that cFFP post-PRT were not excessively pro-inflammatory. Further research, including a careful clinical evaluation of CCP-treated patients, will be required to thoroughly define the clinical relevance of these findings.
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Affiliation(s)
- Fabrice Cognasse
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint-Etienne, France
- Université Jean Monnet, Mines Saint-Étienne, INSERM (Institut National de la Santé et de la Recherche Médicale), U 1059 Sainbiose, (SAnté INgéniérie BIOlogie St-Etienne), Saint-Étienne, France
- *Correspondence: Fabrice Cognasse,
| | - Hind Hamzeh-Cognasse
- Université Jean Monnet, Mines Saint-Étienne, INSERM (Institut National de la Santé et de la Recherche Médicale), U 1059 Sainbiose, (SAnté INgéniérie BIOlogie St-Etienne), Saint-Étienne, France
| | - Anne-Claire Duchez
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint-Etienne, France
- Université Jean Monnet, Mines Saint-Étienne, INSERM (Institut National de la Santé et de la Recherche Médicale), U 1059 Sainbiose, (SAnté INgéniérie BIOlogie St-Etienne), Saint-Étienne, France
| | - Natalia Shurko
- Institute of Blood Pathology and Transfusion Medicine NAMS (National Academy of Medical Sciences) of Ukraine, Lviv, Ukraine
| | - Marie-Ange Eyraud
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint-Etienne, France
- Université Jean Monnet, Mines Saint-Étienne, INSERM (Institut National de la Santé et de la Recherche Médicale), U 1059 Sainbiose, (SAnté INgéniérie BIOlogie St-Etienne), Saint-Étienne, France
| | - Charles-Antoine Arthaud
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint-Etienne, France
- Université Jean Monnet, Mines Saint-Étienne, INSERM (Institut National de la Santé et de la Recherche Médicale), U 1059 Sainbiose, (SAnté INgéniérie BIOlogie St-Etienne), Saint-Étienne, France
| | - Amélie Prier
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint-Etienne, France
- Université Jean Monnet, Mines Saint-Étienne, INSERM (Institut National de la Santé et de la Recherche Médicale), U 1059 Sainbiose, (SAnté INgéniérie BIOlogie St-Etienne), Saint-Étienne, France
| | - Marco Heestermans
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint-Etienne, France
- Université Jean Monnet, Mines Saint-Étienne, INSERM (Institut National de la Santé et de la Recherche Médicale), U 1059 Sainbiose, (SAnté INgéniérie BIOlogie St-Etienne), Saint-Étienne, France
| | - Olivier Hequet
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint-Etienne, France
- CIRI, International Center for Infectiology Research, INSERM (Institut National de la Santé et de la Recherche Médicale) U1111, Université de Lyon, Lyon, France
| | | | | | - Françoise Teyssier
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint-Etienne, France
| | | | - Patricia Chavarin
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint-Etienne, France
| | - Dominique Legrand
- Etablissement Français du Sang Auvergne-Rhône-Alpes, Saint-Etienne, France
| | | | - Pascal Morel
- Etablissement Français du Sang, La Plaine St Denis, France
- UMR (Unité mixte de recherche) RIGHT U1098, INSERM, Etablissement Français du Sang, Université de Franche-Comté, Besançon, France
| | - Nuala Mooney
- Human Immunology, Pathophysiology and Immunotherapy, INSERM (Institut National de la Santé et de la Recherche Médicale) U976, Paris, France
| | - Pierre Tiberghien
- Etablissement Français du Sang, La Plaine St Denis, France
- UMR (Unité mixte de recherche) RIGHT U1098, INSERM, Etablissement Français du Sang, Université de Franche-Comté, Besançon, France
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Bachkoenig OA, Gottschalk B, Malli R, Graier WF. An unexpected effect of risperidone reveals a nonlinear relationship between cytosolic Ca 2+ and mitochondrial Ca 2+ uptake. CURRENT TOPICS IN MEMBRANES 2022; 90:13-35. [PMID: 36368872 DOI: 10.1016/bs.ctm.2022.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Mitochondria actively contribute to cellular Ca2+ homeostasis. The molecular mechanisms of mitochondrial Ca2+ uptake and release are well characterized and are attributed to the multi-protein assembly of the mitochondrial Ca2+ uniporter complex (MCUC) and the mitochondrial sodium-calcium exchanger (NCLX), respectively. Hence, Ca2+ transfer from the endoplasmic reticulum (ER) and store-operated Ca2+ entry (SOCE) into the mitochondrial matrix has been quantitatively visualized on the subcellular level using targeted fluorescent biosensors. However, a correlation between the amplitude of cytosolic Ca2+ elevation with that in the mitochondrial matrix has not been investigated in detail so far. In the present study, we combined the Ca2+-mobilizing agonist histamine with the H1-receptor antagonist risperidone to establish a well-tunable experimental approach allowing the correlation between low, slow, high, and fast cytosolic and mitochondrial Ca2+ signals in response to inositol 1,4,5-trisphosphate (IP3)-triggered ER Ca2+ release. Our present data confirm a defined threshold in cytosolic Ca2+, which is necessary for the activation of mitochondrial Ca2+ uptake. Moreover, our data support the hypothesis of different modes of mitochondrial Ca2+ uptake depending on the source of the ion (i.e., ER vs SOCE).
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Affiliation(s)
- Olaf A Bachkoenig
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Benjamin Gottschalk
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Roland Malli
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Wolfgang F Graier
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria.
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Kampa RP, Flori L, Sęk A, Spezzini J, Brogi S, Szewczyk A, Calderone V, Bednarczyk P, Testai L. Luteolin-Induced Activation of Mitochondrial BK Ca Channels: Undisclosed Mechanism of Cytoprotection. Antioxidants (Basel) 2022; 11:1892. [PMID: 36290615 PMCID: PMC9598376 DOI: 10.3390/antiox11101892] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 09/29/2023] Open
Abstract
Luteolin (LUT) is a well-known flavonoid that exhibits a number of beneficial properties. Among these, it shows cardioprotective effects, as confirmed by numerous studies. However, its effect on mitochondrial potassium channels, the activation of which is related to cytoprotection, as well as on heart ischemia/reperfusion (I/R) damage prevention, has not yet been investigated. The large conductance calcium-regulated potassium channel (mitoBKCa) has been identified in both the mitochondria of the vascular endothelial cells, which plays a significant role in the functioning of the cardiovascular system under oxidative stress-related conditions, and in the mitochondria of cardiomyocytes, where it is deeply involved in cardiac protection against I/R injury. Therefore, the aim of this study was to explore the role of the mitoBKCa channel in luteolin-induced cytoprotection. A number of in vitro, in vivo, ex vivo and in silico studies have confirmed that luteolin activates this channel in the mitochondria of cardiomyocytes and endothelial cells, which in turn leads to the protection of the endothelium and a significant reduction in the extent of damage resulting from myocardial infarction, where this effect was partially abolished by the mitoBKCa channel blocker paxilline. In conclusion, these results suggest that luteolin has cardioprotective effects, at least in part, through the activation of the mitoBKCa channel, shedding light on a new putative mechanism of action.
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Affiliation(s)
- Rafał P. Kampa
- Laboratory of Intracellular Ion Channels, Nencki Institute of Experimental Biology PAS, 02-093 Warsaw, Poland
- Department of Pharmacology, Faculty of Pharmacy, University of Pisa, 6 via Bonanno Pisano, 56120 Pisa, Italy
| | - Lorenzo Flori
- Department of Pharmacology, Faculty of Pharmacy, University of Pisa, 6 via Bonanno Pisano, 56120 Pisa, Italy
| | - Aleksandra Sęk
- Laboratory of Intracellular Ion Channels, Nencki Institute of Experimental Biology PAS, 02-093 Warsaw, Poland
| | - Jacopo Spezzini
- Department of Pharmacology, Faculty of Pharmacy, University of Pisa, 6 via Bonanno Pisano, 56120 Pisa, Italy
| | - Simone Brogi
- Department of Pharmacology, Faculty of Pharmacy, University of Pisa, 6 via Bonanno Pisano, 56120 Pisa, Italy
| | - Adam Szewczyk
- Laboratory of Intracellular Ion Channels, Nencki Institute of Experimental Biology PAS, 02-093 Warsaw, Poland
| | - Vincenzo Calderone
- Department of Pharmacology, Faculty of Pharmacy, University of Pisa, 6 via Bonanno Pisano, 56120 Pisa, Italy
| | - Piotr Bednarczyk
- Department of Physics and Biophysics, Institute of Biology, Warsaw University of Life Sciences–SGGW (WULS-SGGW), 159 Nowoursynowska St., 02-776 Warsaw, Poland
| | - Lara Testai
- Department of Pharmacology, Faculty of Pharmacy, University of Pisa, 6 via Bonanno Pisano, 56120 Pisa, Italy
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Ashraf APK, Gerke V. The resealing factor S100A11 interacts with annexins and extended synaptotagmin-1 in the course of plasma membrane wound repair. Front Cell Dev Biol 2022; 10:968164. [PMID: 36200035 PMCID: PMC9527316 DOI: 10.3389/fcell.2022.968164] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 09/01/2022] [Indexed: 11/13/2022] Open
Abstract
After damage, cells repair their plasma membrane in an active process that is driven by Ca2+ entering through the wound. This triggers a range of Ca2+-regulated events such as the translocation of different Ca2+-binding proteins to the wound site which likely function in the repair process. The translocated proteins include Ca2+/phospholipid binding proteins of the annexin (ANX) family and S100A11, an EF hand-type Ca2+-binding protein which can interact with ANX. The molecular mechanism by which S100A11 mediates PM wound repair remains poorly understood although it likely involves interactions with ANX. Here, using S100A11 knockout endothelial cells and expression of S100A11 mutants, we show that endothelial S100A11 is essential for efficient plasma membrane wound repair and engages in Ca2+-dependent interactions with ANXA1 and ANXA2 through its C-terminal extension (residues 93–105). ANXA2 but not ANXA1 translocation to the wound is substantially inhibited in the absence of S100A11; however, the repair defect in S100A11 knockout cells is rescued by ectopic expression of an ANX interaction-defective S100A11 mutant, suggesting an ANX-independent role of S100A11 in membrane wound repair. In search for other interaction partners that could mediate this action of S100A11 we identify extended synaptotagmin 1 (E-Syt1), a protein tether that regulates endoplasmic reticulum-plasma membrane contact sites. E-Syt1 binds to S100A11 in the presence of Ca2+ and depletion of E-Syt1 interferes with wound site recruitment of S100A11 and proper membrane resealing. Thus, the role of S100A11 in membrane wound repair does not exclusively dependent on ANX interactions and a Ca2+-regulated S100A11-E-Syt1 complex acts as a yet unrecognized component of the membrane resealing machinery.
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Effect of Flaxseed (Linum usitatissimum L.) Supplementation on Vascular Endothelial Cell Morphology and Function in Patients with Dyslipidaemia—A Preliminary Observation. Nutrients 2022; 14:nu14142879. [PMID: 35889835 PMCID: PMC9315791 DOI: 10.3390/nu14142879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/03/2022] [Accepted: 07/08/2022] [Indexed: 11/17/2022] Open
Abstract
Context: Flaxseed has a characteristic fatty acids composition and unique phytonutrient profile that may have health-promoting properties. Objective: This study aimed to determine the effects of 10 weeks of supplementation with the flaxseed (28 g/day) on endothelial cells (EC) function, serum lipids and proinflammatory mediators in patients with mild and severe dyslipidaemia. Materials and methods: Eleven lean patients with severe dyslipidaemia treated with apheresis (group 1; 10 weeks treated in four phases: (i) ordinary diet, (ii) ordinary diet + flaxseed, (iii) ordinary diet (wash out), (iv) ordinary diet + placebo) and eleven obese patients with mild dyslipidaemia—not treated with apheresis (group 2; 10 weeks treated in two phases: (i) ordinary diet, (ii) low fat diet + flaxseed). Flaxseed was given blindly. Serum was collected at the end of each phase of the study. ECs were exposed in vitro to the medium supplemented with pooled serum taken from patients from both groups to detect their morphological changes using light and electron microscopy. ECs proliferation was also measured at the end of each study phase. Results: Serum vascular endothelial growth factor was decreased after flaxseed supplementation but only in group 1. ECs proliferation was increased after flaxseed supplementation only in obese patients. ECs exposed to medium supplemented with obese patients’ serum revealed the following cellular abnormalities: accumulation of lipid droplets, changes of rough endoplasmic reticulum and mitochondria, and flaxseed did not reverse observed changes. At the same time, flaxseed supplementation decreases total cholesterol in both tested groups, low-density lipoprotein cholesterol in group 1 and triglycerides in group 2. Conclusions: Our findings support the potential role of flaxseed in treating dyslipidaemia but indicate only a slight impact on endothelial cell function.
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Abdelgawad IY, Agostinucci K, Ismail SG, Grant MKO, Zordoky BN. EA.hy926 Cells and HUVECs Share Similar Senescence Phenotypes but Respond Differently to the Senolytic Drug ABT-263. Cells 2022; 11:cells11131992. [PMID: 35805077 PMCID: PMC9266052 DOI: 10.3390/cells11131992] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/18/2022] [Accepted: 06/19/2022] [Indexed: 12/24/2022] Open
Abstract
Doxorubicin (DOX) induces endothelial cell (EC) senescence, which contributes to endothelial dysfunction and cardiovascular complications. Senolytic drugs selectively eliminate senescent cells to ameliorate senescence-mediated pathologies. Previous studies have demonstrated differences between immortalized and primary EC models in some characteristics. However, the response of DOX-induced senescent ECs to senolytics has not been determined across these two models. In the present work, we first established a comparative characterization of DOX-induced senescence phenotypes in immortalized EA.hy926 endothelial-derived cells and primary human umbilical vein EC (HUVECs). Thereafter, we evaluated the senolytic activity of four senolytics across both ECs. Following the DOX treatment, both EA.hy926 and HUVECs shared similar senescence phenotypes characterized by upregulated senescence markers, increased SA-β-gal activity, cell cycle arrest, and elevated expression of the senescence-associated secretory phenotype (SASP). The potentially senolytic drugs dasatinib, quercetin, and fisetin demonstrated a lack of selectivity against DOX-induced senescent EA.hy926 cells and HUVECs. However, ABT-263 (Navitoclax) selectively induced the apoptosis of DOX-induced senescent HUVECs but not EA.hy926 cells. Mechanistically, DOX-treated EA.hy926 cells and HUVECs demonstrated differential expression levels of the BCL-2 family proteins. In conclusion, both EA.hy926 cells and HUVECs demonstrate similar DOX-induced senescence phenotypes but they respond differently to ABT-263, presumably due to the different expression levels of BCL-2 family proteins.
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Monteiro NO, Oliveira C, Silva TH, Martins A, Fangueiro JF, Reis RL, Neves NM. Biomimetic Surface Topography from the Rubus fruticosus Leaf as a Guidance of Angiogenesis in Tissue Engineering Applications. ACS Biomater Sci Eng 2022; 8:2943-2953. [PMID: 35706335 DOI: 10.1021/acsbiomaterials.2c00264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The promotion of angiogenesis is a fundamental step for efficient organ/tissue reconstitution and replacement. Thus, several strategies to promote vascularization of scaffolds were studied to satisfy this unsolved clinical need. The interface between cells and substrates is a determinant for the success of tissue engineering (TE) strategies. Substrate's topography is reported to play a key role in influencing endothelial cell behavior, namely, on its proliferation, metabolic activity, morphology, migration, and secretion of cytokines and chemokines. Therefore, surface topography of the biomaterial-based grafts is a crucial property that is considered in the development of a new TE approach. Herein, we hypothesize that the surface of Rubus fruticosus leaf plays a crucial role in driving angiogenesis since its architecture resembles the vascular structures at a biologically relevant size scale. For this, we produced biomimetic polycaprolactone (PCL) membranes (BpMs) replicating the surface topography of a R. fruticosus leaf by replica molding and nanoimprint lithography. Our results showed an enhanced performance in terms of proliferation of the human endothelial cell line on top of the BpM. Moreover, an asymmetric cellular spatial distribution among the surface of the BpM was observed. These cells seem to have higher density for longer time periods in the region that replicates the leaf veins. Finally, we assess the angiogenic capacity through a chick chorioallantoic membrane assay, revealing that BpMs are more prone to support angiogenesis than flat PCL membranes. We strongly believe that this strategy can bring new insights into developing TE strategies with an enhanced performance in terms of the vascular integration between the host and the scaffolds implanted.
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Affiliation(s)
- Nelson O Monteiro
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães 4805-017, Portugal.,ICVS/3B's─PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Catarina Oliveira
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães 4805-017, Portugal.,ICVS/3B's─PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Tiago H Silva
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães 4805-017, Portugal.,ICVS/3B's─PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Albino Martins
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães 4805-017, Portugal.,ICVS/3B's─PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana F Fangueiro
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães 4805-017, Portugal.,ICVS/3B's─PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães 4805-017, Portugal.,ICVS/3B's─PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Nuno M Neves
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães 4805-017, Portugal.,ICVS/3B's─PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Binz RL, Pathak R. Molecular Cytogenetics Reveals Mosaicism in Human Umbilical Vein Endothelial Cells. Genes (Basel) 2022; 13:genes13061012. [PMID: 35741774 PMCID: PMC9222953 DOI: 10.3390/genes13061012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 05/31/2022] [Accepted: 06/02/2022] [Indexed: 02/06/2023] Open
Abstract
Primary human umbilical vein endothelial cells (HUVECs) are consistently the most reliable in vitro model system for studying the inner lining of blood and lymphatic vessels or the endothelium. Primary human cells originate from freshly isolated tissues without genetic manipulation and generally show a modal number of 46 chromosomes with no structural alterations, at least during early passages. We investigated the cytogenetic integrity of HUVECs with conventional (G-banding) and molecular cytogenetic methods (spectral karyotyping (SKY) and fluorescence in situ hybridization (FISH)). Our G-band data shows two X-chromosomes, confirming these HUVECs originate from a female donor. Notably, some cells consistently exhibit an unfamiliar banding pattern on one X chromosome toward the distal end of the long arm (Xq). Our FISH analysis confirms that approximately 50% of these HUVECs have a deletion of the Xq terminal region. SKY analysis indicates that the deleted region is apparently not integrated into any other chromosome. Finally, we demonstrated the presence of a similar Xq deletion in the daughter cell line, EA.hy926, which was generated by fusing HUVECs with A549 (a thioguanine-resistant clone of adenocarcinomic human alveolar basal epithelial cells). These findings will advance comprehension of HUVECs biology and will augment future endothelial studies.
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Luzak B, Siarkiewicz P, Boncler M. An evaluation of a new high-sensitivity PrestoBlue assay for measuring cell viability and drug cytotoxicity using EA.hy926 endothelial cells. Toxicol In Vitro 2022; 83:105407. [PMID: 35659575 DOI: 10.1016/j.tiv.2022.105407] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/29/2022] [Accepted: 05/29/2022] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Commercially-available resazurin-based reagents used for cell viability assessment contain varying amounts of resorufin; these may contribute to differences in autofluorescence, signal-to-background (S/B) ratio and the dynamic range of the assay. OBJECTIVES This in vitro study compares the sensitivity of a new, high-sensitivity PrestoBlue (hs-PB) assay with standard PrestoBlue (PB) in assessing the efficacy of valinomycin and antimycin A in human vascular endothelial EA.hy926 cells, as well as cell viability. METHODS The metabolic activity of EA.hy926 was evaluated based on resorufin fluorescence or formazan absorbance. RESULTS The hs-PB assay demonstrated lower resorufin autofluorescence than the PB, resulting in a ≥ 1.4-fold increase in S/B ratio in hs-PB compared to PB. Valinomycin was more potent cytotoxic agent than antimycin A. The hs-PB, PB and MTT produced similar IC50 values for valinomycin. Antimycin A demonstrated significantly higher potency in the MTT than in the resazurin-based assays. The EA.hy926 cells demonstrated higher metabolic activity in the presence of the antimycin A solvent - DMSO. CONCLUSION All the examined methods may be used interchangeably to analyze drug cytotoxicity. Any differences in drug cytotoxicity observed between the assays may be due to relatively low drug potency and/or the influence of solvent on metabolism of assay reagent. The hs-PB assay appears to more effectively detect cell viability and produce a stronger signal than its conventional counterpart.
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Affiliation(s)
- Boguslawa Luzak
- Department of Haemostasis and Haemostatic Disorders, Medical University of Lodz, Lodz, Poland
| | - Przemysław Siarkiewicz
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Lodz, Poland
| | - Magdalena Boncler
- Department of Haemostasis and Haemostatic Disorders, Medical University of Lodz, Lodz, Poland.
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Meuleman MS, Duval A, Fremeaux-Bacchi V, Roumenina LT, Chauvet S. Ex Vivo Test for Measuring Complement Attack on Endothelial Cells: From Research to Bedside. Front Immunol 2022; 13:860689. [PMID: 35493497 PMCID: PMC9041553 DOI: 10.3389/fimmu.2022.860689] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 03/21/2022] [Indexed: 01/04/2023] Open
Abstract
As part of the innate immune system, the complement system plays a key role in defense against pathogens and in host cell homeostasis. This enzymatic cascade is rapidly triggered in the presence of activating surfaces. Physiologically, it is tightly regulated on host cells to avoid uncontrolled activation and self-damage. In cases of abnormal complement dysregulation/overactivation, the endothelium is one of the primary targets. Complement has gained momentum as a research interest in the last decade because its dysregulation has been implicated in the pathophysiology of many human diseases. Thus, it appears to be a promising candidate for therapeutic intervention. However, detecting abnormal complement activation is challenging. In many pathological conditions, complement activation occurs locally in tissues. Standard routine exploration of the plasma concentration of the complement components shows values in the normal range. The available tests to demonstrate such dysregulation with diagnostic, prognostic, and therapeutic implications are limited. There is a real need to develop tools to demonstrate the implications of complement in diseases and to explore the complex interplay between complement activation and regulation on human cells. The analysis of complement deposits on cultured endothelial cells incubated with pathologic human serum holds promise as a reference assay. This ex vivo assay most closely resembles the physiological context. It has been used to explore complement activation from sera of patients with atypical hemolytic uremic syndrome, malignant hypertension, elevated liver enzymes low platelet syndrome, sickle cell disease, pre-eclampsia, and others. In some cases, it is used to adjust the therapeutic regimen with a complement-blocking drug. Nevertheless, an international standard is lacking, and the mechanism by which complement is activated in this assay is not fully understood. Moreover, primary cell culture remains difficult to perform, which probably explains why no standardized or commercialized assay has been proposed. Here, we review the diseases for which endothelial assays have been applied. We also compare this test with others currently available to explore complement overactivation. Finally, we discuss the unanswered questions and challenges to overcome for validating the assays as a tool in routine clinical practice.
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Affiliation(s)
- Marie-Sophie Meuleman
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, Paris, France
| | - Anna Duval
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, Paris, France
| | | | - Lubka T Roumenina
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, Paris, France
| | - Sophie Chauvet
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, Paris, France
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5,2′-Dibromo-2,4′,5′-trihydroxydiphenylmethanone Inhibits LPS-Induced Vascular Inflammation by Targeting the Cav1 Protein. Molecules 2022; 27:molecules27092884. [PMID: 35566232 PMCID: PMC9101869 DOI: 10.3390/molecules27092884] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/18/2022] [Accepted: 04/27/2022] [Indexed: 11/16/2022] Open
Abstract
Vascular inflammation is directly responsible for atherosclerosis. 5,2′-Dibromo-2,4′,5′-trihydroxydiphenylmethanone (TDD), a synthetic bromophenol derivative, exhibits anti-atherosclerosis and anti-inflammatory effects. However, the underlying pathways are not yet clear. In this study, we first examined the effects of TDD on toll-like receptor-4 (TLR4) activity, the signaling receptor for lipopolysaccharide (LPS), and found that TDD does not inhibit LPS-induced TLR4 expression in EA.hy926 cells and the vascular wall in vivo. Next, we investigated the global protein alterations and the mechanisms underlying the action of TDD in LPS-treated EA.hy926 cells using an isobaric tag for the relative and absolute quantification technique. Western blot analysis revealed that TDD inhibited NF-κB activation by regulating the phosphorylation and subsequent degradation IκBα. Among the differentially expressed proteins, TDD concentration-dependently inhibited Caveolin 1(Cav1) expression. The interaction between Cav1 and TDD was determined by using biolayer interference assay, UV-vis absorption spectra, fluorescence spectrum, and molecular docking. We found that TDD can directly bind to Cav1 through hydrogen bonds and van der Waals forces. In conclusion, our results showed that TDD inhibited LPS-induced vascular inflammation and the NF-κB signaling pathway by specifically targeting the Cav1 protein. TDD may be a novel anti-inflammatory compound, especially for the treatment of atherosclerosis.
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Ohashi A, Uemura Y, Yoshimori M, Wada N, Imadome KI, Yudo K, Koyama T, Shimizu N, Nishio M, Arai A. The Plasma Level of Interleukin-1β Can Be a Biomarker of Angiopathy in Systemic Chronic Active Epstein-Barr Virus Infection. Front Microbiol 2022; 13:874998. [PMID: 35464987 PMCID: PMC9019545 DOI: 10.3389/fmicb.2022.874998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/16/2022] [Indexed: 01/12/2023] Open
Abstract
Systemic chronic active Epstein-Barr virus infection (sCAEBV) is an EBV-positive T- or NK-cell neoplasm revealing persistent systemic inflammation. Twenty-five percent of sCAEBV patients accompany angiopathy. It is crucial to clarify the mechanisms of angiopathy development in sCAEBV because angiopathy is one of the main causes of death. Interleukin-1β (IL-1β) is reported to be involved in angiopathy onset. We investigated if IL-1β plays a role as the inducer of angiopathy of sCAEBV. We detected elevated IL-1β levels in four out of 17 sCAEBV patient's plasma. Interestingly, three out of the four had clinically associated angiopathy. None of the other patients with undetectable level of IL-1β had angiopathy. In all patients with high plasma levels of IL-1β and vascular lesions, EBV-infected cells were CD4-positive T cells. In one patient with high plasma IL-1β, the level of IL-1β mRNA of the monocytes was 17.2 times higher than the level of the same patient's EBV-infected cells in peripheral blood. In Ea.hy926 cells, which are the models of vascular endothelial cells, IL-1β inhibited the proliferation and induced the surface coagulation activity. IL-1β is a potent biomarker and a potent therapeutic target to treat sCAEBV accompanying angiopathy.
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Affiliation(s)
- Ayaka Ohashi
- Department of Frontier Medicine, Institute of Medical Science, St. Marianna University School of Medicine, Kanagawa, Japan.,Department of Laboratory Molecular Genetics of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Yu Uemura
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Mayumi Yoshimori
- Department of Hematological Therapeutics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Naomi Wada
- Department of Advanced Medicine for Viral Infections, National Center for Child Health and Development, Tokyo, Japan
| | - Ken-Ichi Imadome
- Department of Advanced Medicine for Viral Infections, National Center for Child Health and Development, Tokyo, Japan
| | - Kazuo Yudo
- Department of Frontier Medicine, Institute of Medical Science, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Takatoshi Koyama
- Department of Laboratory Molecular Genetics of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Hematology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Norio Shimizu
- Center of Stem Cell and Regenerative Medicine, Advanced Multidisciplinary Research Cluster, Institute of Research, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Miwako Nishio
- Department of Laboratory Molecular Genetics of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Ayako Arai
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan.,Department of Hematological Therapeutics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Paweł Kampa R, Gliździńska A, Szewczyk A, Bednarczyk P, Filipek S. Flavonoid quercetin abolish paxilline inhibition of the mitochondrial bk channel. Mitochondrion 2022; 65:23-32. [DOI: 10.1016/j.mito.2022.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/30/2022] [Accepted: 04/27/2022] [Indexed: 12/17/2022]
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Molinar-Inglis O, Wozniak JM, Grimsey NJ, Orduña-Castillo L, Cheng N, Lin Y, Gonzalez Ramirez ML, Birch CA, Lapek JD, Gonzalez DJ, Trejo J. Phosphoproteomic analysis of thrombin- and p38 MAPK-regulated signaling networks in endothelial cells. J Biol Chem 2022; 298:101801. [PMID: 35257745 PMCID: PMC8987612 DOI: 10.1016/j.jbc.2022.101801] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 01/11/2023] Open
Abstract
Endothelial dysfunction is a hallmark of inflammation and is mediated by inflammatory factors that signal through G protein–coupled receptors including protease-activated receptor-1 (PAR1). PAR1, a receptor for thrombin, signals via the small GTPase RhoA and myosin light chain intermediates to facilitate endothelial barrier permeability. PAR1 also induces endothelial barrier disruption through a p38 mitogen-activated protein kinase–dependent pathway, which does not integrate into the RhoA/MLC pathway; however, the PAR1-p38 signaling pathways that promote endothelial dysfunction remain poorly defined. To identify effectors of this pathway, we performed a global phosphoproteome analysis of thrombin signaling regulated by p38 in human cultured endothelial cells using multiplexed quantitative mass spectrometry. We identified 5491 unique phosphopeptides and 2317 phosphoproteins, four distinct dynamic phosphoproteome profiles of thrombin-p38 signaling, and an enrichment of biological functions associated with endothelial dysfunction, including modulators of endothelial barrier disruption and a subset of kinases predicted to regulate p38-dependent thrombin signaling. Using available antibodies to detect identified phosphosites of key p38-regulated proteins, we discovered that inhibition of p38 activity and siRNA-targeted depletion of the p38α isoform increased basal phosphorylation of extracellular signal–regulated protein kinase 1/2, resulting in amplified thrombin-stimulated extracellular signal–regulated protein kinase 1/2 phosphorylation that was dependent on PAR1. We also discovered a role for p38 in the phosphorylation of α-catenin, a component of adherens junctions, suggesting that this phosphorylation may function as an important regulatory process. Taken together, these studies define a rich array of thrombin- and p38-regulated candidate proteins that may serve important roles in endothelial dysfunction.
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Matyjaszczyk-Gwarda K, Kij A, Olkowicz M, Fels B, Kusche-Vihrog K, Walczak M, Chlopicki S. Simultaneous quantification of selected glycosaminoglycans by butanolysis-based derivatization and LC-SRM/MS analysis for assessing glycocalyx disruption in vitro and in vivo. Talanta 2022; 238:123008. [PMID: 34857342 DOI: 10.1016/j.talanta.2021.123008] [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: 08/03/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/25/2022]
Abstract
Glycosaminoglycans (GAGs) constitute the main building blocks of the endothelial glycocalyx (GLX), and disruption of GLX initiates and promotes endothelial dysfunction. Here, we aimed to develop a novel, specific and accurate LC-SRM/MS-based method for glycosaminoglycans (GAGs) profiling. The method involved butanolysis derivatization to facilitate GAG-specific disaccharide generation and its subsequent retention in LC-reversed-phase mode followed by mass spectrometric detection performed in positive ion-selected reaction monitoring (SRM) mode. GAG contents were measured in media of endothelial cells (EA.hy926) subjected to various GAG-degrading enzymes, as well as in murine plasma and urine in apolipoprotein E/low-density lipoprotein receptor-deficient (ApoE/LDLR -/-) mice and age-matched wild-type C57BL/6 mice. Alternatively, GLX disruption was verified by atomic force microscopy (AFM)-based analysis of GLX thickness. The proposed assay to quantify GAG-specific disaccharides presented high sensitivity for each of the analytes (LLOQ: 0.05-0.1 μg/mL) as well as accuracy and precision (86.8-114.9% and 2.0-14.3%, respectively). In medium of EA.hy926 cells subjected to GAG-degrading enzymes various GAG-specific disaccharides indicating the degradation of keratan sulphate (KS), heparan sulphate (HS), chondroitin sulphate (CHS) or hyaluronan (HA) were detected as predicted based on the characteristics of individual enzyme activity. In turn, AFM-based assessment of GLX thickness was reduced to a similar extent by all single enzyme treatments, whereas the most prominent reduction of GLX thickness was detected following the enzyme mixture. Plasma measurements of GAGs revealed age- and hypercholesterolemia-dependent decrease in GAGs concentration. In summary, a novel LC-SRM/MS-based method for GAG profiling was proposed that may inform on GLX status in cell culture for both in vitro and in vivo conditions.
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Affiliation(s)
- Karolina Matyjaszczyk-Gwarda
- Jagiellonian University, Jagiellonian Centre for Experimental Therapeutics (JCET), Bobrzynskiego 14, 30-348, Krakow, Poland
| | - Agnieszka Kij
- Jagiellonian University, Jagiellonian Centre for Experimental Therapeutics (JCET), Bobrzynskiego 14, 30-348, Krakow, Poland
| | - Mariola Olkowicz
- Jagiellonian University, Jagiellonian Centre for Experimental Therapeutics (JCET), Bobrzynskiego 14, 30-348, Krakow, Poland
| | - Benedikt Fels
- Universität zu Lübeck, Institut für Physiologie, Ratzeburger Allee 160, Gebäude 61, D-23562, Lübeck, Germany
| | - Kristina Kusche-Vihrog
- Universität zu Lübeck, Institut für Physiologie, Ratzeburger Allee 160, Gebäude 61, D-23562, Lübeck, Germany
| | - Maria Walczak
- Jagiellonian University, Jagiellonian Centre for Experimental Therapeutics (JCET), Bobrzynskiego 14, 30-348, Krakow, Poland; Jagiellonian University Medical College, Chair and Department of Toxicology, Medyczna 9, 30-688, Krakow, Poland
| | - Stefan Chlopicki
- Jagiellonian University, Jagiellonian Centre for Experimental Therapeutics (JCET), Bobrzynskiego 14, 30-348, Krakow, Poland; Jagiellonian University Medical College, Chair of Pharmacology, Grzegorzecka 16, 31-531, Krakow, Poland.
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Li J, Guo W, Yu F, Liu L, Wang X, Li L, Fang B, Xia L. Low-intensity pulsed ultrasound promotes angiogenesis via the AKT pathway and DNA methylation in human umbilical vein endothelial cells. ULTRASONICS 2022; 118:106561. [PMID: 34500338 DOI: 10.1016/j.ultras.2021.106561] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 06/13/2023]
Abstract
Angiogenesis involves the activation of endothelial cells (ECs). Low-intensity pulsed ultrasound (LIPUS), which delivers ultrasound waves at a low intensity, can induce the angiogenic potential of ECs. However, the underlying cellular mechanisms remain to be elucidated. In this study, the LIPUS parameters were 1.5 MHz pulsed frequency, 200 us pulse duration, 1.0 kHz repetition rate, and 30 mW/cm2 energy intensity. First, we evaluated the effects of LIPUS on the proliferation and angiogenic differentiation of the EC line EA.hy926. The results showed that LIPUS could induce cell proliferation, promote migration, and increase mRNA level inKDR and CD144.Also, the mRNA level and secretion of VEGF were enhanced. We then investigated the role of the AKT signaling pathway in this process. We observed that the expression of p-AKT was upregulated which means that the AKT signaling pathway could be activated by LIPUS, while inhibitor LY294002 of the AKT signaling pathway effectively blocked LIPUS-induced angiogenesis. Finally,we applied confocal Raman microscopy to track biomolecular changes in cells after LIPUS treatment. Spectral analysis showed DNA methylation changes. An Infinium Methylation assay suggested that399 sites were significantly different. After KEGG enrichment analysis, we found seven genes (IRS1, GNG7, COL4A1, FOXO3, COL4A2, CDK4 and EGF) which were closely related to AKT signaling pathway. We verified that AKT signaling pathway inhibition partially blocked LIPUS-induced DNA methylation changes. Ourstudy demonstrated that LIPUS couldpromote the proliferation and angiogenic differentiation of ECs via the AKT signaling pathway. LIPUS could also alter DNA methylation of ECs via the activation of AKT signal.
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Affiliation(s)
- JiaYi Li
- School of Medicine, Shanghai Jiao Tong University, 227 South Chongqing Road, Shanghai 200025, China
| | - WeiMing Guo
- School of Medicine, Shanghai Jiao Tong University, 227 South Chongqing Road, Shanghai 200025, China
| | - Fei Yu
- School of Medicine, Shanghai Jiao Tong University, 227 South Chongqing Road, Shanghai 200025, China
| | - Lu Liu
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 500 Qu Xi Road, Shanghai 200011, China
| | - XiaoTing Wang
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 500 Qu Xi Road, Shanghai 200011, China
| | - LvYuan Li
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 500 Qu Xi Road, Shanghai 200011, China
| | - Bing Fang
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 500 Qu Xi Road, Shanghai 200011, China.
| | - Lunguo Xia
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 500 Qu Xi Road, Shanghai 200011, China.
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Herrero Y, Pascuali N, Velázquez C, Oubiña G, Hauk V, de Zúñiga I, Peña MG, Martínez G, Lavolpe M, Veiga F, Neuspiller F, Abramovich D, Scotti L, Parborell F. SARS-CoV-2 infection negatively affects ovarian function in ART patients. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166295. [PMID: 34718118 PMCID: PMC8550892 DOI: 10.1016/j.bbadis.2021.166295] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/24/2021] [Accepted: 10/15/2021] [Indexed: 01/08/2023]
Abstract
Several organs, such as the heart, breasts, intestine, testes, and ovaries, have been reported to be target tissues of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. To date, no studies have demonstrated SARS-CoV-2 infection in the female reproductive system. In the present study, we investigated the effects of SARS-CoV-2 infection on ovarian function by comparing follicular fluid (FF) from control and recovered coronavirus disease 2019 (COVID-19) patients and by evaluating the influence of these FF on human endothelial and non-luteinized granulosa cell cultures. Our results showed that most FFs (91.3%) from screened post COVID-19 patients were positive for IgG antibodies against SARS-CoV-2. Additionally, patients with higher levels of IgG against SARS-CoV-2 had lower numbers of retrieved oocytes. While VEGF and IL-1β were significantly lower in post COVID-19 FF, IL-10 did not differ from that in control FF. Moreover, in COV434 cells stimulated with FF from post COVID-19 patients, steroidogenic acute regulatory protein (StAR), estrogen-receptor β (Erβ), and vascular endothelial growth factor (VEGF) expression were significantly decreased, whereas estrogen-receptor α (ERα) and 3β-hydroxysteroid dehydrogenase (3β-HSD) did not change. In endothelial cells stimulated with post COVID-19 FF, we observed a decrease in cell migration without changes in protein expression of certain angiogenic factors. Both cell types showed a significantly higher γH2AX expression when exposed to post COVID-19 FF. In conclusion, our results describe for the first time that the SARS-CoV-2 infection adversely affects the follicular microenvironment, thus dysregulating ovarian function.
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Affiliation(s)
- Yamila Herrero
- Ovarian Pathophysiology Studies Laboratory, Institute of Experimental Biology and Medicine (IByME) - CONICET, Buenos Aires, Argentina
| | - Natalia Pascuali
- Ovarian Pathophysiology Studies Laboratory, Institute of Experimental Biology and Medicine (IByME) - CONICET, Buenos Aires, Argentina
| | - Candela Velázquez
- Ovarian Pathophysiology Studies Laboratory, Institute of Experimental Biology and Medicine (IByME) - CONICET, Buenos Aires, Argentina
| | - Gonzalo Oubiña
- Ovarian Pathophysiology Studies Laboratory, Institute of Experimental Biology and Medicine (IByME) - CONICET, Buenos Aires, Argentina
| | - Vanesa Hauk
- Immunopharmacology Laboratory, Institute of Biological Chemistry (IQUIBICEN), School of Exact and Natural Sciences, University of Buenos Aires-CONICET, Buenos Aires, Argentina
| | | | | | | | | | | | | | - Dalhia Abramovich
- Ovarian Pathophysiology Studies Laboratory, Institute of Experimental Biology and Medicine (IByME) - CONICET, Buenos Aires, Argentina
| | - Leopoldina Scotti
- Ovarian Pathophysiology Studies Laboratory, Institute of Experimental Biology and Medicine (IByME) - CONICET, Buenos Aires, Argentina; Centro de Investigaciones y Transferencia del Noroeste de la Provincia de Buenos Aires (CITNOBA) - CONICET - UNNOBA - UNSAdA, San Antonio de Areco, Argentina
| | - Fernanda Parborell
- Ovarian Pathophysiology Studies Laboratory, Institute of Experimental Biology and Medicine (IByME) - CONICET, Buenos Aires, Argentina.
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Markova K, Mikhailova V, Milyutina Y, Korenevsky A, Sirotskaya A, Rodygina V, Tyshchuk E, Grebenkina P, Simbirtsev A, Selkov S, Sokolov D. Effects of Microvesicles Derived from NK Cells Stimulated with IL-1β on the Phenotype and Functional Activity of Endothelial Cells. Int J Mol Sci 2021; 22:ijms222413663. [PMID: 34948459 PMCID: PMC8708902 DOI: 10.3390/ijms222413663] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/14/2021] [Accepted: 12/16/2021] [Indexed: 12/23/2022] Open
Abstract
Microvesicles (MVs) are plasma extracellular vesicles ranging from 100 (150) to 1000 nm in diameter. These are generally produced by different cells through their vital activity and are a source of various protein and non-protein molecules. It is assumed that MVs can mediate intercellular communication and modulate cell functions. The interaction between natural killer cells (NK cells) and endothelial cells underlies multiple pathological conditions. The ability of MVs derived from NK cells to influence the functional state of endothelial cells in inflammatory conditions has yet to be studied well. In this regard, we aimed to study the effects of MVs derived from NK cells of the NK-92 cell line stimulated with IL-1β on the phenotype, caspase activity, proliferation and migration of endothelial cells of the EA.hy926 cell line. Endothelial cells were cultured with MVs derived from cells of the NK-92 cell line after their stimulation with IL-1β. Using flow cytometry, we evaluated changes in the expression of endothelial cell surface molecules and endothelial cell death. We evaluated the effect of MVs derived from stimulated NK cells on the proliferative and migratory activity of endothelial cells, as well as the activation of caspase-3 and caspase-9 therein. It was established that the incubation of endothelial cells with MVs derived from cells of the NK-92 cell line stimulated with IL-1β and with MVs derived from unstimulated NK cells, leads to the decrease in the proliferative activity of endothelial cells, appearance of the pan leukocyte marker CD45 on them, caspase-3 activation and partial endothelial cell death, and reduced CD105 expression. However, compared with MVs derived from unstimulated NK cells, a more pronounced effect of MVs derived from cells of the NK-92 cell line stimulated with IL-1β was found in relation to the decrease in the endothelial cell migratory activity and the intensity of the CD54 molecule expression on them. The functional activity of MVs is therefore mediated by the conditions they are produced under, as well as their internal contents.
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Affiliation(s)
- Kseniia Markova
- Department of Immunology and Intercellular Interactions, Federal State Budgetary Scientific Institution, Research Institute of Obstetrics, Gynecology, and Reproductology Named after D.O. Ott, 199034 St. Petersburg, Russia; (V.M.); (Y.M.); (A.K.); (A.S.); (V.R.); (E.T.); (P.G.); (S.S.); (D.S.)
- Correspondence: ; Tel.:+7-812-323-75-45
| | - Valentina Mikhailova
- Department of Immunology and Intercellular Interactions, Federal State Budgetary Scientific Institution, Research Institute of Obstetrics, Gynecology, and Reproductology Named after D.O. Ott, 199034 St. Petersburg, Russia; (V.M.); (Y.M.); (A.K.); (A.S.); (V.R.); (E.T.); (P.G.); (S.S.); (D.S.)
| | - Yulia Milyutina
- Department of Immunology and Intercellular Interactions, Federal State Budgetary Scientific Institution, Research Institute of Obstetrics, Gynecology, and Reproductology Named after D.O. Ott, 199034 St. Petersburg, Russia; (V.M.); (Y.M.); (A.K.); (A.S.); (V.R.); (E.T.); (P.G.); (S.S.); (D.S.)
| | - Andrey Korenevsky
- Department of Immunology and Intercellular Interactions, Federal State Budgetary Scientific Institution, Research Institute of Obstetrics, Gynecology, and Reproductology Named after D.O. Ott, 199034 St. Petersburg, Russia; (V.M.); (Y.M.); (A.K.); (A.S.); (V.R.); (E.T.); (P.G.); (S.S.); (D.S.)
| | - Anastasia Sirotskaya
- Department of Immunology and Intercellular Interactions, Federal State Budgetary Scientific Institution, Research Institute of Obstetrics, Gynecology, and Reproductology Named after D.O. Ott, 199034 St. Petersburg, Russia; (V.M.); (Y.M.); (A.K.); (A.S.); (V.R.); (E.T.); (P.G.); (S.S.); (D.S.)
| | - Veronika Rodygina
- Department of Immunology and Intercellular Interactions, Federal State Budgetary Scientific Institution, Research Institute of Obstetrics, Gynecology, and Reproductology Named after D.O. Ott, 199034 St. Petersburg, Russia; (V.M.); (Y.M.); (A.K.); (A.S.); (V.R.); (E.T.); (P.G.); (S.S.); (D.S.)
| | - Elizaveta Tyshchuk
- Department of Immunology and Intercellular Interactions, Federal State Budgetary Scientific Institution, Research Institute of Obstetrics, Gynecology, and Reproductology Named after D.O. Ott, 199034 St. Petersburg, Russia; (V.M.); (Y.M.); (A.K.); (A.S.); (V.R.); (E.T.); (P.G.); (S.S.); (D.S.)
| | - Polina Grebenkina
- Department of Immunology and Intercellular Interactions, Federal State Budgetary Scientific Institution, Research Institute of Obstetrics, Gynecology, and Reproductology Named after D.O. Ott, 199034 St. Petersburg, Russia; (V.M.); (Y.M.); (A.K.); (A.S.); (V.R.); (E.T.); (P.G.); (S.S.); (D.S.)
| | - Andrey Simbirtsev
- State Research Institute of Highly Pure Biopreparations, 197110 St. Petersburg, Russia;
| | - Sergey Selkov
- Department of Immunology and Intercellular Interactions, Federal State Budgetary Scientific Institution, Research Institute of Obstetrics, Gynecology, and Reproductology Named after D.O. Ott, 199034 St. Petersburg, Russia; (V.M.); (Y.M.); (A.K.); (A.S.); (V.R.); (E.T.); (P.G.); (S.S.); (D.S.)
| | - Dmitry Sokolov
- Department of Immunology and Intercellular Interactions, Federal State Budgetary Scientific Institution, Research Institute of Obstetrics, Gynecology, and Reproductology Named after D.O. Ott, 199034 St. Petersburg, Russia; (V.M.); (Y.M.); (A.K.); (A.S.); (V.R.); (E.T.); (P.G.); (S.S.); (D.S.)
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Eichler M, Aksi E, Pfeilschifter J, Imre G. Application of pseudotyped virus particles to monitor Ebola virus and SARS-CoV-2 viral entry in human cell lines. STAR Protoc 2021; 2:100818. [PMID: 34467222 PMCID: PMC8390363 DOI: 10.1016/j.xpro.2021.100818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Experimental work on highly pathogenic viruses such as Ebola virus (EBOV) and severe acute respiratory syndrome coronavirus-2 requires high-level biosafety facilities. Here, we provide a detailed step-by-step protocol which details the production and application of replication-incompetent murine leukemia virus-based pseudotyped particles to monitor and quantify the viral entry efficiency in human cell lines under biosafety level-2 conditions. We describe the use of viral particles encoding luciferase gene and the quantification of transduction efficiency by measuring luciferase activity. For complete details on the use and execution of this protocol, please refer to Imre et al. (2021). MLV pseudotyped viruses are suitable for studies on viral entry in human cell lines Replication incompetence of pseudoviruses enables bio safety level-2 conditions Quantification of transduction efficiency by measurement of luciferase activity
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Affiliation(s)
- Madeleine Eichler
- Institute of General Pharmacology and Toxicology, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Ebru Aksi
- Institute of General Pharmacology and Toxicology, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Josef Pfeilschifter
- Institute of General Pharmacology and Toxicology, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Gergely Imre
- Institute of General Pharmacology and Toxicology, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
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50
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Itagaki K, Riça I, Konecna B, Kim HI, Park J, Kaczmarek E, Hauser CJ. Role of Mitochondria-Derived Danger Signals Released After Injury in Systemic Inflammation and Sepsis. Antioxid Redox Signal 2021; 35:1273-1290. [PMID: 33847158 PMCID: PMC8905257 DOI: 10.1089/ars.2021.0052] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Significance: Sepsis is a major public health concern, with high mortality and morbidity, especially among patients undergoing trauma. It is characterized by a systemic inflammatory response syndrome (SIRS) occurring in response to infection. Although classically associated with pathogens, many patients with SIRS do not have infection. The variability of the disease course cannot be fully explained by our current understanding of its pathogenesis. Thus, other factors are likely to play key roles in the development and progression of SIRS/sepsis. Recent Advances: Circulating levels of damage-associated molecular patterns (DAMPs) seem to correlate with SIRS/sepsis morbidity and mortality. Of the known DAMPs, those of mitochondrial (mt) origin have been of particular interest, since their DNA (mtDNA) and formyl peptides (mtFPs) resemble bacterial DNA and peptides, and hence, when released, may be recognized as "danger signals." Critical Issues: mtDAMPs released after tissue injury trigger immune responses similar to those induced by pathogens. Thus, they can result in systemic inflammation and organ damage, similar to that observed in SIRS/sepsis. We will discuss recent findings on the roles of mtDAMPs, particularly regarding the less recognized mtFPs, in the activation of inflammatory responses and development of SIRS/sepsis. Future Directions: There are no established methods to predict the course of SIRS/sepsis, but clinical studies reveal that plasma levels of mtDAMPs may correlate with the outcome of the disease. We propose that non-pathogen-initiated, mtDAMPs-induced SIRS/sepsis events need further studies aimed at early clinical recognition and better treatment of this disease.
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Affiliation(s)
- Kiyoshi Itagaki
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Ingred Riça
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Barbora Konecna
- Institute of Molecular Biomedicine, Comenius University, Bratislava, Slovakia
| | - Hyo In Kim
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Jinbong Park
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Elzbieta Kaczmarek
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA.,Center for Vascular Biology Research, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Carl J Hauser
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, USA
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