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Petrova T, Kalinina O, Aquino A, Grigoryev E, Dubashynskaya NV, Zubkova K, Kostareva A, Golovkin A. Topographic Distribution of miRNAs (miR-30a, miR-223, miR-let-7a, miR-let-7f, miR-451, and miR-486) in the Plasma Extracellular Vesicles. Noncoding RNA 2024; 10:15. [PMID: 38392970 PMCID: PMC10892389 DOI: 10.3390/ncrna10010015] [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: 12/28/2023] [Revised: 01/27/2024] [Accepted: 02/04/2024] [Indexed: 02/25/2024] Open
Abstract
There are many articles on the quantitative analysis of miRNAs contained in a population of EVs of different sizes under various physiological and pathological conditions. For such analysis, it is important to correctly quantify the miRNA contents of EVs. It should be considered that quantification is skewed depending on the isolation protocol, and different miRNAs are degraded by nucleases with different efficiencies. In addition, it is important to consider the contribution of miRNAs coprecipitating with the EVs population, because the amount of miRNAs in the EVs population under study is skewed without appropriate enzymatic treatment. By studying a population of EVs from the blood plasma of healthy donors, we found that the absolute amount of miRNA inside the vesicles is commensurate with the amount of the same type of miRNA adhered to the outside of the EVs. The inside/outside ratio ranged from 1.02 to 2.64 for different investigated miRNAs. According to our results, we propose the hypothesis that high occupancy of miRNAs on the outer surface of EVs influence on the transporting RNA repertoire no less than the inner cargo received from the host cell.
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Affiliation(s)
- Tatiana Petrova
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (T.P.); (O.K.); (A.A.); (K.Z.); (A.K.)
| | - Olga Kalinina
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (T.P.); (O.K.); (A.A.); (K.Z.); (A.K.)
| | - Arthur Aquino
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (T.P.); (O.K.); (A.A.); (K.Z.); (A.K.)
| | - Evgeniy Grigoryev
- St. Petersburg State University, Research Park, 199034 St. Petersburg, Russia;
| | - Natallia V. Dubashynskaya
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, 199004 St. Petersburg, Russia;
| | - Kseniya Zubkova
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (T.P.); (O.K.); (A.A.); (K.Z.); (A.K.)
| | - Anna Kostareva
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (T.P.); (O.K.); (A.A.); (K.Z.); (A.K.)
| | - Alexey Golovkin
- Almazov National Medical Research Centre, 197341 St. Petersburg, Russia; (T.P.); (O.K.); (A.A.); (K.Z.); (A.K.)
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Goncharov NV, Popova PI, Kudryavtsev IV, Golovkin AS, Savitskaya IV, Avdonin PP, Korf EA, Voitenko NG, Belinskaia DA, Serebryakova MK, Matveeva NV, Gerlakh NO, Anikievich NE, Gubatenko MA, Dobrylko IA, Trulioff AS, Aquino AD, Jenkins RO, Avdonin PV. Immunological Profile and Markers of Endothelial Dysfunction in Elderly Patients with Cognitive Impairments. Int J Mol Sci 2024; 25:1888. [PMID: 38339164 PMCID: PMC10855959 DOI: 10.3390/ijms25031888] [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: 12/10/2023] [Revised: 01/19/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
The process of aging is accompanied by a dynamic restructuring of the immune response, a phenomenon known as immunosenescence. Further, damage to the endothelium can be both a cause and a consequence of many diseases, especially in elderly people. The purpose of this study was to carry out immunological and biochemical profiling of elderly people with acute ischemic stroke (AIS), chronic cerebral circulation insufficiency (CCCI), prediabetes or newly diagnosed type II diabetes mellitus (DM), and subcortical ischemic vascular dementia (SIVD). Socio-demographic, lifestyle, and cognitive data were obtained. Biochemical, hematological, and immunological analyses were carried out, and extracellular vesicles (EVs) with endothelial CD markers were assessed. The greatest number of significant deviations from conditionally healthy donors (HDs) of the same age were registered in the SIVD group, a total of 20, of which 12 were specific and six were non-specific but with maximal differences (as compared to the other three groups) from the HDs group. The non-specific deviations were for the MOCA (Montreal Cognitive Impairment Scale), the MMSE (Mini Mental State Examination) and life satisfaction self-assessment scores, a decrease of albumin levels, and ADAMTS13 (a Disintegrin and Metalloproteinase with a Thrombospondin Type 1 motif, member 13) activity, and an increase of the VWF (von Willebrand factor) level. Considering the significant changes in immunological parameters (mostly Th17-like cells) and endothelial CD markers (CD144 and CD34), vascular repair was impaired to the greatest extent in the DM group. The AIS patients showed 12 significant deviations from the HD controls, including three specific to this group. These were high NEFAs (non-esterified fatty acids) and CD31 and CD147 markers of EVs. The lowest number of deviations were registered in the CCCI group, nine in total. There were significant changes from the HD controls with no specifics to this group, and just one non-specific with a maximal difference from the control parameters, which was α1-AGP (alpha 1 acid glycoprotein, orosomucoid). Besides the DM patients, impairments of vascular repair were also registered in the CCCI and AIS patients, with a complete absence of such in patients with dementia (SIVD group). On the other hand, microvascular damage seemed to be maximal in the latter group, considering the biochemical indicators VWF and ADAMTS13. In the DM patients, a maximum immune response was registered, mainly with Th17-like cells. In the CCCI group, the reaction was not as pronounced compared to other groups of patients, which may indicate the initial stages and/or compensatory nature of organic changes (remodeling). At the same time, immunological and biochemical deviations in SIVD patients indicated a persistent remodeling in microvessels, chronic inflammation, and a significant decrease in the anabolic function of the liver and other tissues. The data obtained support two interrelated assumptions. Taking into account the primary biochemical factors that trigger the pathological processes associated with vascular pathology and related diseases, the first assumption is that purine degradation in skeletal muscle may be a major factor in the production of uric acid, followed by its production by non-muscle cells, the main of which are endothelial cells. Another assumption is that therapeutic factors that increase the levels of endothelial progenitor cells may have a therapeutic effect in reducing the risk of cerebrovascular disease and related neurodegenerative diseases.
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Affiliation(s)
- Nikolay V. Goncharov
- Research Institute of Hygiene, Occupational Pathology and Human Ecology of the Federal Medical Biological Agency, bld 93 Kuzmolovsky, Leningrad Region 188663, Russia
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, St. Petersburg 194223, Russia
| | | | | | | | | | - Piotr P. Avdonin
- Koltsov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow 119334, Russia
| | - Ekaterina A. Korf
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, St. Petersburg 194223, Russia
| | - Natalia G. Voitenko
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, St. Petersburg 194223, Russia
| | - Daria A. Belinskaia
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, St. Petersburg 194223, Russia
| | | | | | | | | | | | - Irina A. Dobrylko
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, St. Petersburg 194223, Russia
| | | | - Arthur D. Aquino
- Almazov National Medical Research Centre, St. Petersburg 197341, Russia
| | - Richard O. Jenkins
- School of Allied Health Sciences, De Montfort University, The Gateway, Leicester LE1 9BH, UK
| | - Pavel V. Avdonin
- Koltsov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow 119334, Russia
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3
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Cai Z, Feng J, Dong N, Zhou P, Huang Y, Zhang H. Platelet-derived extracellular vesicles play an important role in platelet transfusion therapy. Platelets 2023; 34:2242708. [PMID: 37578045 DOI: 10.1080/09537104.2023.2242708] [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: 07/16/2023] [Accepted: 07/24/2023] [Indexed: 08/15/2023]
Abstract
Extracellular vesicles (EVs) contain the characteristics of their cell of origin and mediate cell-to-cell communication. Platelet-derived extracellular vesicles (PEVs) not only have procoagulant activity but also contain platelet-derived inflammatory factors (CD40L and mtDNA) that mediate inflammatory responses. Studies have shown that platelets are activated during storage to produce large amounts of PEVs, which may have implications for platelet transfusion therapy. Compared to platelets, PEVs have a longer storage time and greater procoagulant activity, making them an ideal alternative to platelets. This review describes the reasons and mechanisms by which PEVs may have a role in blood transfusion therapy.
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Affiliation(s)
- Zhi Cai
- Department of Transfusion, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China
| | - Junyan Feng
- Class 2018 Medical Inspection Technology, Southwest Medical University, Luzhou, China
| | - Nian Dong
- Department of Clinical Laboratory, Gulin People's Hospital, Guilin, China
| | - Pan Zhou
- Department of Clinical Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China
| | - Yuanshuai Huang
- Department of Transfusion, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China
| | - Hongwei Zhang
- Department of Transfusion, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China
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4
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Velmiskina AA, Nikitin YV, Mikhailovskii VY, Mosenko SV, Anisenkova AY, Apalko SV, Sushentseva NN, Scherbak SG, Ivanov AM, Galaktionov NK, Shneider OV, Kondratov KA. Analysis of the Morphology of Monocytes and Lymphocytes from COVID-19 Patients Using Low-Voltage Scanning Electronic Microscopy. Bull Exp Biol Med 2023; 176:297-302. [PMID: 38194071 DOI: 10.1007/s10517-024-06011-4] [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: 04/24/2023] [Indexed: 01/10/2024]
Abstract
Severe course of COVID-19 is largely determined by hyperactivation of the immune system, or cytokine storm, in which immune cells (lymphocytes, monocytes, etc.) play a major role. Using low-voltage scanning electron microscopy, we studied the morphology of lymphocytes and monocytes during cytokine storm. Monocytes and lymphocytes were isolated by fluorescence sorting from the blood of healthy volunteers (n=6) and patients with COVID-19 (n=5) during cytokine storm (IL-6>23 ng/ml, smear positive for SARS-CoV-2). For each patient, 11-32 individual cells were analyzed at magnification of 18-32,000 times. Measurements showed that monocyte size was increased during cytokine storm (p=0.0001).
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Affiliation(s)
- A A Velmiskina
- St. Petersburg City Hospital No. 40, Sestroretsk, St. Petersburg, Russia
- St. Petersburg State University, St. Petersburg, Russia
| | - Yu V Nikitin
- S. M. Kirov Military Medical Academy, Ministry of Defense of the Russian Federation, St. Petersburg, Russia
| | | | - S V Mosenko
- St. Petersburg City Hospital No. 40, Sestroretsk, St. Petersburg, Russia
- St. Petersburg State University, St. Petersburg, Russia
| | - A Yu Anisenkova
- St. Petersburg City Hospital No. 40, Sestroretsk, St. Petersburg, Russia
- St. Petersburg State University, St. Petersburg, Russia
| | - S V Apalko
- St. Petersburg City Hospital No. 40, Sestroretsk, St. Petersburg, Russia
| | - N N Sushentseva
- St. Petersburg City Hospital No. 40, Sestroretsk, St. Petersburg, Russia
| | - S G Scherbak
- St. Petersburg City Hospital No. 40, Sestroretsk, St. Petersburg, Russia
- St. Petersburg State University, St. Petersburg, Russia
| | - A M Ivanov
- S. M. Kirov Military Medical Academy, Ministry of Defense of the Russian Federation, St. Petersburg, Russia
| | - N K Galaktionov
- St. Petersburg City Hospital No. 40, Sestroretsk, St. Petersburg, Russia
| | - O V Shneider
- St. Petersburg City Hospital No. 40, Sestroretsk, St. Petersburg, Russia
| | - K A Kondratov
- St. Petersburg City Hospital No. 40, Sestroretsk, St. Petersburg, Russia.
- St. Petersburg State University, St. Petersburg, Russia.
- S. M. Kirov Military Medical Academy, Ministry of Defense of the Russian Federation, St. Petersburg, Russia.
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5
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Kondratov KA, Artamonov AA, Mikhailovskii VY, Velmiskina AA, Mosenko SV, Grigoryev EA, Anisenkova AY, Nikitin YV, Apalko SV, Sushentseva NN, Ivanov AM, Scherbak SG. SARS-CoV-2 Impact on Red Blood Cell Morphology. Biomedicines 2023; 11:2902. [PMID: 38001903 PMCID: PMC10669871 DOI: 10.3390/biomedicines11112902] [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: 09/01/2023] [Revised: 10/22/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
Severe COVID-19 alters the biochemical and morphological characteristics of blood cells in a wide variety of ways. To date, however, the vast majority of research has been devoted to the study of leukocytes, while erythrocyte morphological changes have received significantly less attention. The aim of this research was to identify erythrocyte morphology abnormalities that occur in COVID-19, compare the number of different poikilocyte types, and measure erythrocyte sizes to provide data on size dispersion. Red blood cells obtained from 6 control donors (800-2200 cells per donor) and 5 COVID-19 patients (800-1900 cells per patient) were examined using low-voltage scanning electron microscopy. We did not discover any forms of erythrocyte morphology abnormalities that would be specific to COVID-19. Among COVID-19 patients, we observed an increase in the number of acanthocytes (p = 0.01) and a decrease in the number of spherocytes (p = 0.03). In addition, our research demonstrates that COVID-19 causes an increase in the median (p = 0.004) and interquartile range (p = 0.009) when assessing erythrocyte size. The limitation of our study is a small number of participants.
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Affiliation(s)
- Kirill A. Kondratov
- City Hospital No. 40, St. Petersburg 197706, Russia
- S. M. Kirov Military Medical Academy, St. Petersburg 194044, Russia
- Saint-Petersburg State University, St. Petersburg 199034, Russia
| | | | | | - Anastasiya A. Velmiskina
- City Hospital No. 40, St. Petersburg 197706, Russia
- Saint-Petersburg State University, St. Petersburg 199034, Russia
| | - Sergey V. Mosenko
- City Hospital No. 40, St. Petersburg 197706, Russia
- Saint-Petersburg State University, St. Petersburg 199034, Russia
| | | | - Anna Yu. Anisenkova
- City Hospital No. 40, St. Petersburg 197706, Russia
- Saint-Petersburg State University, St. Petersburg 199034, Russia
| | - Yuri V. Nikitin
- S. M. Kirov Military Medical Academy, St. Petersburg 194044, Russia
| | - Svetlana V. Apalko
- City Hospital No. 40, St. Petersburg 197706, Russia
- Saint-Petersburg State University, St. Petersburg 199034, Russia
| | | | - Andrey M. Ivanov
- S. M. Kirov Military Medical Academy, St. Petersburg 194044, Russia
| | - Sergey G. Scherbak
- City Hospital No. 40, St. Petersburg 197706, Russia
- Saint-Petersburg State University, St. Petersburg 199034, Russia
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6
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Kalinina OV, Khudiakov AА, Panshin DD, Nikitin YV, Ivanov AM, Kostareva AA, Golovkin AS. Small Non-Coding RNA Profiles of Sorted Plasma Extracellular Vesicles: Technical Approach. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022060151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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7
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Vaughan L, Zamyadi A, Ajjampur S, Almutaram H, Freguia S. A review of microscopic cell imaging and neural network recognition for synergistic cyanobacteria identification and enumeration. ANAL SCI 2022; 38:261-279. [PMID: 35286640 PMCID: PMC8938360 DOI: 10.1007/s44211-021-00013-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/07/2021] [Indexed: 11/30/2022]
Abstract
AbstractReal-time cyanobacteria/algal monitoring is a valuable tool for early detection of harmful algal blooms, water treatment efficacy evaluation, and assists tailored water quality risk assessments by considering taxonomy and cell counts. This review evaluates and proposes a synergistic approach using neural network image recognition and microscopic imaging devices by first evaluating published literature for both imaging microscopes and image recognition. Quantitative phase imaging was considered the most promising of the investigated imaging techniques due to the provision of enhanced information relative to alternatives. This information provides significant value to image recognition neural networks, such as the convolutional neural networks discussed within this review. Considering published literature, a cyanobacteria monitoring system and corresponding image processing workflow using in situ sample collection buoys and on-shore sample processing was proposed. This system can be implemented using commercially available equipment to facilitate accurate, real-time water quality monitoring.
Graphical abstract
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Affiliation(s)
- Liam Vaughan
- Water Research Australia, Level 2, 250 Victoria Square, Adelaide, SA, 5000, Australia.
| | - Arash Zamyadi
- Water Research Australia, Level 2, 250 Victoria Square, Adelaide, SA, 5000, Australia
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Suraj Ajjampur
- Water Research Australia, Level 2, 250 Victoria Square, Adelaide, SA, 5000, Australia
| | - Husein Almutaram
- Department of Civil and Mineral Engineering, University of Toronto, Toronto, ON, M5S 1A4, Canada
| | - Stefano Freguia
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia
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8
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Božič D, Vozel D, Hočevar M, Jeran M, Jan Z, Pajnič M, Pađen L, Iglič A, Battelino S, Kralj-Iglič V. Enrichment of plasma in platelets and extracellular vesicles by the counterflow to erythrocyte settling. Platelets 2021; 33:592-602. [PMID: 34384320 DOI: 10.1080/09537104.2021.1961716] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In order to prepare optimal platelet and extracellular vesicle (EV)-rich plasma for the treatment of chronic temporal bone inflammation, we studied effects of centrifugation parameters on redistribution of blood constituents in blood samples of 23 patients and 20 volunteers with no record of disease. Concentrations of blood cells and EVs were measured by flow cytometry. Sample content was inspected by scanning electron microscopy. A mathematical model was constructed to interpret the experimental results. The observed enrichment of plasma in platelets and EVs after a single spin of blood depended on the erythrocyte sedimentation rate, thereby indicating the presence of a flow of plasma that carried platelets and EVs in the direction opposite to settling of erythrocytes. Prolonged handling time correlated with the decrease of concentration of platelets and larger EVs in platelet and EV-rich plasma (PVRP), R = -0.538, p = 0.003, indicating cell fragmentation during the processing of samples. In further centrifugation of the obtained plasma, platelet and EV enrichment depended on the average distance of the sample from the centrifuge rotor axis. Based on the agreement of the model predictions with observations, we propose the centrifugation protocol optimal for platelet and EV enrichment and recovery in an individual sample, adjusted to the dimensions of the centrifuge rotor, volume of blood and erythrocyte sedimentation rate.[Figure: see text].
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Affiliation(s)
- Darja Božič
- University of Ljubljana, Faculty of Health Sciences, Laboratory of Clinical Biophysics, Ljubljana, Slovenia.,University of Ljubljana, Faculty of Electrical Engineering, Laboratory of Physics, Ljubljana, Slovenia
| | - Domen Vozel
- University Medical Centre Ljubljana, Department of Otorhinolaryngology and Cervicofacial Surgery, Ljubljana, Slovenia.,University of Ljubljana, Faculty of Medicine, Department of Otorhinolaryngology, Ljubljana, Slovenia
| | - Matej Hočevar
- Department of Physics and Chemistry of Materials, Institute of Metals and Technology, Ljubljana, Slovenia
| | - Marko Jeran
- University of Ljubljana, Faculty of Health Sciences, Laboratory of Clinical Biophysics, Ljubljana, Slovenia.,University of Ljubljana, Faculty of Electrical Engineering, Laboratory of Physics, Ljubljana, Slovenia
| | - Zala Jan
- University of Ljubljana, Faculty of Health Sciences, Laboratory of Clinical Biophysics, Ljubljana, Slovenia
| | - Manca Pajnič
- University of Ljubljana, Faculty of Health Sciences, Laboratory of Clinical Biophysics, Ljubljana, Slovenia
| | - Ljubiša Pađen
- University of Ljubljana, Faculty of Health Sciences, Laboratory of Clinical Biophysics, Ljubljana, Slovenia
| | - Aleš Iglič
- University of Ljubljana, Faculty of Electrical Engineering, Laboratory of Physics, Ljubljana, Slovenia.,University of Ljubljana, Faculty of Medicine, Chair of Orthopedics, Laboratory of Clinical Biophysics, Ljubljana, Slovenia
| | - Saba Battelino
- University Medical Centre Ljubljana, Department of Otorhinolaryngology and Cervicofacial Surgery, Ljubljana, Slovenia.,University of Ljubljana, Faculty of Medicine, Department of Otorhinolaryngology, Ljubljana, Slovenia
| | - Veronika Kralj-Iglič
- University of Ljubljana, Faculty of Health Sciences, Laboratory of Clinical Biophysics, Ljubljana, Slovenia
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9
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The Significance of Phenotyping and Quantification of Plasma Extracellular Vesicles Levels Using High-Sensitivity Flow Cytometry during COVID-19 Treatment. Viruses 2021; 13:v13050767. [PMID: 33925492 PMCID: PMC8146052 DOI: 10.3390/v13050767] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/20/2021] [Accepted: 04/25/2021] [Indexed: 12/13/2022] Open
Abstract
New investigation results point to the potential participation of extracellular vesicles (EVs) in the pathogenesis of coronavirus infection, its progression, and mechanisms of the therapy effectiveness. This dictates the necessity to transfer scientific testing technologies to medical practice. Here, we demonstrated the method of phenotyping and quantitative analysis of plasma EVs based on differential centrifugation, immunostaining, and high-sensitivity multicolor flow cytometry. We used EV markers that were potentially associated with SARS-CoV-2 dissemination via vesicles and cell-origination markers, characterizing objects from different cell types that could influence clinical manifestation of COVID-19. Plasma levels of CD235a+ and CD14+ EVs in patients with moderate infection were significantly increased while CD8+ and CD19+ EVs were decreased comparing with HD. Patients with severe infection had lower levels of CD4+, CD19+, and CD146+ EVs than HD. These findings demonstrate that EV concentrations in COVID-19 are severity related. Moreover, the three-point dynamic assessment demonstrated significant loss of CD63+ and CD147+ plasma EVs. The used method can be a convenient tool for vital infection pathogenesis investigation and for COVID-19 diagnostics.
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10
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Kondratov K, Nikitin Y, Fedorov A, Kostareva A, Mikhailovskii V, Isakov D, Ivanov A, Golovkin A. Heterogeneity of the nucleic acid repertoire of plasma extracellular vesicles demonstrated using high-sensitivity fluorescence-activated sorting. J Extracell Vesicles 2020; 9:1743139. [PMID: 32341769 PMCID: PMC7170328 DOI: 10.1080/20013078.2020.1743139] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 02/12/2020] [Accepted: 03/05/2020] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was to investigate cell source-dependent nucleic acids repertoire of diverse subpopulations of plasma extracellular vesicles (EVs). Blood plasma from nine healthy volunteers was used for the analysis. Samples of EVs were obtained by differential centrifugation of plasma. The application of high-sensitivity fluorescence-activated vesicles sorting (hs-FAVS) using fluorophore-conjugated anti-CD41-FITC (Fluorescein isothiocyanate) and anti-CD235a-PE antibodies allowed the isolation of three subpopulations of EVs, namely CD41+ CD235a-, CD41-CD235a+ and CD41-CD235a dim. The high purity (>97%) of the sorted subpopulations was verified by high-sensitivity flow cytometry. Presence of nanosized objects in sorted samples was confirmed by combination of low-voltage scanning electron microscopy and dynamic light scattering. The amount of material in sorted samples was enough to perform Quantitative polymerase chain reaction (qPCR)-based nucleic acid quantification. The most prominent differences in the nucleic acid repertoire were noted between CD41+ CD235- vs. CD41-CD235a+ vesicles: the former contained significantly (p = 0.004) higher amount of mitochondrial DNA, and platelet enriched miR-21-5p (4-fold), miR-223-3p (38-fold) and miR-199a-3p (187-fold), but lower amount of erythrocyte enriched miR-451a (90-fold). CD41-CD235a+ and CD41-CD235a dim vesicles differed in levels of miR-451a (p = 0.016) and miR-21-5p (p = 0.031). Nuclear DNA was below the limit of detection in all EV subpopulations. The hs-FCM-based determination of the number of sorted EVs allowed the calculation of per single-event miRNA concentrations. It was demonstrated that the most abundant marker in CD41+ CD235a- subpopulation was miR-223-3p, reaching 38.2 molecules per event. In the CD41-CD235+ subpopulation, the most abundant marker was miR-451a, reaching 24.7 molecules per event. Taken together, our findings indicate that erythrocyte- and platelet-derived EVs carry different repertoires of nucleic acids, which were similar to the composition of their cellular sources.
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Affiliation(s)
- Kirill Kondratov
- Institute of Molecular Biology and Genetics, Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Yuri Nikitin
- Department of Clinical Biochemistry and Laboratory Diagnostics, Military Medical Academy N.a. S.M. Kirov, St. Petersburg, Russia
| | - Anton Fedorov
- Institute of Molecular Biology and Genetics, Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Anna Kostareva
- Institute of Molecular Biology and Genetics, Almazov National Medical Research Centre, St. Petersburg, Russia
- Department of Woman and Child Health, Karolinska Institute, Stockholm, Sweden
| | - Vladimir Mikhailovskii
- Interdisciplinary Resource Center for Nanotechnology, Saint-Petersburg State University, St. Petersburg, Russia
| | - Dmitry Isakov
- Department of Immunology, Institution of Experimental Medicine, St. Petersburg, Russia
- Department of Immunology, Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - Andrey Ivanov
- Department of Clinical Biochemistry and Laboratory Diagnostics, Military Medical Academy N.a. S.M. Kirov, St. Petersburg, Russia
| | - Alexey Golovkin
- Institute of Molecular Biology and Genetics, Almazov National Medical Research Centre, St. Petersburg, Russia
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