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Kudláčová J, Kužílková D, Bárta F, Brdičková N, Vávrová A, Kostka L, Hovorka O, Kalina T, Etrych T. Hybrid Macromolecular Constructs as a Platform for Spectral Nanoprobes for Advanced Cellular Barcoding in Flow Cytometry. Macromol Biosci 2024; 24:e2300306. [PMID: 37691533 DOI: 10.1002/mabi.202300306] [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: 06/29/2023] [Revised: 08/17/2023] [Indexed: 09/12/2023]
Abstract
Herein, an advanced bioconjugation technique to synthesize hybrid polymer-antibody nanoprobes tailored for fluorescent cell barcoding in flow cytometry-based immunophenotyping of leukocytes is applied. A novel approach of attachment combining two fluorescent dyes on the copolymer precursor and its conjugation to antibody is employed to synthesize barcoded nanoprobes of antibody polymer dyes allowing up to six nanoprobes to be resolved in two-dimensional cytometry analysis. The major advantage of these nanoprobes is the construct design in which the selected antibody is labeled with an advanced copolymer bearing two types of fluorophores in different molar ratios. The cells after antibody recognition and binding to the target antigen have a characteristic double fluorescence signal for each nanoprobe providing a unique position on the dot plot, thus allowing antibody-based barcoding of cellular samples in flow cytometry assays. This technique is valuable for cellular assays that require low intersample variability and is demonstrated by the live cell barcoding of clinical samples with B cell abnormalities. In total, the samples from six various donors were successfully barcoded using only two detection channels. This barcoding of clinical samples enables sample preparation and measurement in a single tube.
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Affiliation(s)
- Júlia Kudláčová
- Department of Biomedical Polymers, Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, Prague, 162 00, Czech Republic
| | - Daniela Kužílková
- CLIP (Childhood Leukemia Investigation Prague), Department of Paediatric Haematology and Oncology, Second Faculty of Medicine, Charles University and University Hospital Motol, V Úvalu 84, Prague, 150 06, Czech Republic
| | - František Bárta
- R&D division, I.T.A.-Intertact s.r.o, Černokostelecká 143, Prague, 108 00, Czech Republic
| | - Naděžda Brdičková
- CLIP (Childhood Leukemia Investigation Prague), Department of Paediatric Haematology and Oncology, Second Faculty of Medicine, Charles University and University Hospital Motol, V Úvalu 84, Prague, 150 06, Czech Republic
| | - Adéla Vávrová
- CLIP (Childhood Leukemia Investigation Prague), Department of Paediatric Haematology and Oncology, Second Faculty of Medicine, Charles University and University Hospital Motol, V Úvalu 84, Prague, 150 06, Czech Republic
| | - Libor Kostka
- Department of Biomedical Polymers, Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, Prague, 162 00, Czech Republic
| | - Ondřej Hovorka
- R&D division, I.T.A.-Intertact s.r.o, Černokostelecká 143, Prague, 108 00, Czech Republic
| | - Tomáš Kalina
- CLIP (Childhood Leukemia Investigation Prague), Department of Paediatric Haematology and Oncology, Second Faculty of Medicine, Charles University and University Hospital Motol, V Úvalu 84, Prague, 150 06, Czech Republic
| | - Tomáš Etrych
- Department of Biomedical Polymers, Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, Prague, 162 00, Czech Republic
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Balz K, Grange M, Pegel U, Karamya ZA, Mello M, Zhou X, Berger T, Bloch K, Dunham D, Chinthrajah S, Nadeau K, Luche H, Skevaki C. A novel mass cytometry protocol optimized for immunophenotyping of low-frequency antigen-specific T cells. Front Cell Infect Microbiol 2024; 13:1336489. [PMID: 38287974 PMCID: PMC10822892 DOI: 10.3389/fcimb.2023.1336489] [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: 11/10/2023] [Accepted: 12/20/2023] [Indexed: 01/31/2024] Open
Abstract
Understanding antigen-specific T-cell responses, for example, following virus infections or allergen exposure, is of high relevance for the development of vaccines and therapeutics. We aimed on optimizing immunophenotyping of T cells after antigen stimulation by improving staining procedures for flow and mass cytometry. Our method can be used for primary cells of both mouse and human origin for the detection of low-frequency T-cell response using a dual-barcoding system for individual samples and conditions. First, live-cell barcoding was performed using anti-CD45 antibodies prior to an in vitro T-cell stimulation assay. Second, to discriminate between stimulation conditions and prevent cell loss, sample barcoding was combined with a commercial barcoding solution. This dual-barcoding approach is cell sparing and, therefore, particularly relevant for samples with low cell numbers. To further reduce cell loss and to increase debarcoding efficiency of multiplexed samples, we combined our dual-barcoding approach with a new centrifugation-free washing system by laminar flow (Curiox™). Finally, to demonstrate the benefits of our established protocol, we assayed virus-specific T-cell response in SARS-CoV-2-vaccinated and SARS-CoV-2-infected patients and compared with healthy non-exposed individuals by a high-parameter CyTOF analysis. We could reveal a heterogeneity of phenotypes among responding CD4, CD8, and gd-T cells following antigen-specific stimulations. Our protocol allows to assay antigen-specific responses of minute populations of T cells to virus-derived peptides, allergens, or other antigens from the same donor sample, in order to investigate qualitative and quantitative differences.
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Affiliation(s)
- Kathrin Balz
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Magali Grange
- Centre d’Immunophénomique Centre d'Immunophénomique (CIPHE), Aix Marseille Université, INSERM, CNRS Philipps-Universität Marburg (UMR), Marseille, France
| | - Uta Pegel
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Zain A. Karamya
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Marielle Mello
- Centre d’Immunophénomique Centre d'Immunophénomique (CIPHE), Aix Marseille Université, INSERM, CNRS Philipps-Universität Marburg (UMR), Marseille, France
| | - Xiaoying Zhou
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Thilo Berger
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Konstantin Bloch
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Diane Dunham
- Sean N Parker Center for Allergy and Asthma Research at Stanford University, Stanford, CA, United States
| | - Sharon Chinthrajah
- Sean N Parker Center for Allergy and Asthma Research at Stanford University, Stanford, CA, United States
| | - Kari Nadeau
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Hervé Luche
- Centre d’Immunophénomique Centre d'Immunophénomique (CIPHE), Aix Marseille Université, INSERM, CNRS Philipps-Universität Marburg (UMR), Marseille, France
| | - Chrysanthi Skevaki
- Institute of Laboratory Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, German Center for Lung Research (DZL), Marburg, Germany
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Chen A, Lu D, Yang Z, Che X, Xia Y, Shao X, Chen Z, Qian J, Ge J. Association between NLRP3 inflammasome and periprocedural myocardial injury following elective PCI. Heliyon 2023; 9:e19269. [PMID: 37654461 PMCID: PMC10466922 DOI: 10.1016/j.heliyon.2023.e19269] [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: 03/26/2023] [Revised: 08/05/2023] [Accepted: 08/17/2023] [Indexed: 09/02/2023] Open
Abstract
Background Periprocedural myocardial injury (PMI) is a common complication of percutaneous coronary intervention (PCI) associated with poor prognosis. Inflammation has been demonstrated to exert a crucial role in PMI. However, how the inflammation is initiated or sustained in PMI remains elusive. Methods RNA-seq in peripheral blood mononuclear cells (PBMCs) from 3 Non-PMI and 6 PMI patients was performed with subsequent bioinformatics analysis. RNA-seq results were verified in a patient cohort. We also established the coronary microembolization (CME) mice model to mimic PMI. The activity of caspase-1 in PBMCs was detected by flow cytometry. The levels of interleukin (IL)-1β, IL-18 and cardiac troponin in plasma were measured by enzyme-linked immunosorbent assay. Results We identified a total of 901 differentially expressed genes (DEGs) between Non-PMI and PMI patients. These DEGs participated in several inflammation-related processes. NOD-like receptor signaling pathway was significantly enriched in pathway analysis. All the key genes composed in the NLRP3 inflammasome, including NLRP3, PYCARD, CASP1 and IL1B, were upregulated in PMI patients. The activation of NLRP3 inflammasome was then verified by increased activity of caspase-1 in PBMCs, and elevated levels of IL-1β and IL-18 in plasma in PMI patients. Spearman analysis confirmed tight correlations between caspase-1 activity, IL-1β, IL-18 levels and troponin T level. In addition, caspase-1 activity, IL-1β and IL-18 levels were also enhanced in CME mice. Conclusions We discovered that NLRP3 inflammasome was involved in PMI, thus providing evidence supporting the therapeutic value of NLRP3 inflammasome-targeted strategies in PMI.
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Affiliation(s)
- Ao Chen
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Danbo Lu
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Zheng Yang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xinyu Che
- Shanghai Institute of Infectious Disease and Biosecurity, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yan Xia
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Xia Shao
- Center for Tumor Diagnosis & Therapy, Jinshan Hospital, Fudan University, Shanghai, China
| | - Zhangwei Chen
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Juying Qian
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Junbo Ge
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
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