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Wu J, Fang C, Zhou Y, Wang M, Li Q, Dong S. Causal role of immune cells in uveitis: Mendelian randomization study. Front Immunol 2024; 15:1402074. [PMID: 39044820 PMCID: PMC11263026 DOI: 10.3389/fimmu.2024.1402074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 06/27/2024] [Indexed: 07/25/2024] Open
Abstract
Background Uveitis, characterized by inflammation of the iris, ciliary body, and choroid, presents a significant global clinical challenge, contributing substantially to visual impairment. Risk factors include autoimmune diseases and immune cell dysfunctions, yet many remain unidentified. Immune cells, notably T cells, B cells, and monocytes, play pivotal roles in uveitis pathogenesis. While biologic agents show promise, comprehensive studies on immune cell types in ocular diseases are lacking. Genome-wide association studies (GWAS) and Mendelian randomization (MR) present promising avenues to elucidate genetic susceptibilities and causal relationships between immune cell traits and uveitis risk. Methods Two-sample MR analysis was used to evaluate the causal relationship between 731 immune cells and uveitis, and genome-wide significance analysis was performed for genetic variation in 731 immune cells traits (P < 5 × 10-8). Immune characteristics include median fluorescence intensity (MFI), relative cell counts (RC), absolute cell counts (AC), and morphological parameters (MP), which were determined by published GWAS, and public data from the IEU Open GWAS database. The main analysis method of MR is inverse variance weighting (IVW). Heterogeneity and horizontal pleiotropy were also assessed. Results 5 immunophenotypes, including CD62L-DC %DC, IgD+ CD38dim %B cell, CD3 on CM CD4+T cell, CD3 on CD45RA-CD4 +T cell, and CD3 on CD39+ CD4+ Treg may increase the risk of uveitis. 5 immunophenotypes, including CD11b on CD33dim HLA DR-Myeloid cell, HLA DR on CD33dim HLA DR+ CD11b-myeloid cell, CD14-CD16 + %monocyte, HLA DR on CD14-CD16 + monocyte and PDL-1 on CD14-CD16 + monocyte was negatively associated with the risk of uveitis. Among them, HLA DR on CD14-CD16 + monocyte (OR=0.921, 95%CI =0.875-0.970, P=0.001) and HLA DR on CD33dim HLA DR+ CD11b- (OR=0.879, 95%CI = 0.833-0.927, P=0.00) were negatively associated with the risk of uveitis in bi-direction. Conclusion These results indicate that 10 immune cells traits are significantly associated with the risk of developing uveitis and 2 of them were strongly associated with uveitis bi-directionally, after excluding the effects of confounding factors such as some immune diseases, which provided new ideas and therapeutic targets for the study of immune mechanism of uveitis.
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Affiliation(s)
| | | | | | | | - Qiuming Li
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Henan Provincial Ophthalmic Hospital, Zhengzhou, China
| | - Shuqian Dong
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Henan Provincial Ophthalmic Hospital, Zhengzhou, China
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2
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Ya X, Li H, Ge P, Xu Y, Liu Z, Zheng Z, Mou S, Liu C, Zhang Y, Wang R, Zhang Q, Ye X, Wang W, Zhang D, Zhao J. Single-Cell Atlas of Atherosclerosis Patients by Cytof: Circulatory and Local Immune Disorders. Aging Dis 2024; 15:245-258. [PMID: 37307820 PMCID: PMC10796097 DOI: 10.14336/ad.2023.0426-1] [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: 12/27/2022] [Accepted: 04/28/2023] [Indexed: 06/14/2023] Open
Abstract
Atherosclerosis (AS) is a common underlying pathology of coronary artery disease, peripheral artery disease, and stroke. The characteristics of immune cells within plaques and their functional relationships with blood are crucial in AS. In this study, Mass cytometry (CyTOF), RNA-sequencing and immunofluorescence were combined to comprehensively analyze plaque tissues and peripheral blood from 25 AS patients (22 for Mass cytometry and 3 for RNA-sequencing), as well as blood from 20 healthy individuals. The study identified a complexity of leukocytes in the plaque, including both defined anti-inflammatory and pro-inflammatory subsets such as M2-like CD163+ macrophages, Natural killer T cells (NKT), CD11b+ CD4+ T effector memory cells (Tem), and CD8+ terminally differentiated effector memory cells (TEMRA). Functionally activated cell subsets were also found in peripheral blood in AS patients, highlighting the vivid interactions between leukocytes in plaque and blood. The study provides an atlas of the immune landscape in atherosclerotic patients, where pro-inflammatory activation was found to be a major feature of peripheral blood. The study identified NKT, CD11b+ CD4+ Tem, CD8+ TEMRA and CD163+ macrophages as key players in the local immune environment.
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Affiliation(s)
- Xiaolong Ya
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, China.
| | - Hao Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, China.
| | - Peicong Ge
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, China.
| | - Yiqiao Xu
- Capital Medical University, Beijing, China.
| | - Zechen Liu
- Department of Biostatistics, Harvard School of Public Health, Boston, USA.
| | - Zhiyao Zheng
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Siqi Mou
- University of Chinese Academy of Sciences, Beijing, China.
| | - Chenglong Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, China.
| | - Yan Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, China.
| | - Rong Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, China.
| | - Qian Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, China.
| | - Xun Ye
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, China.
| | - Wenjing Wang
- Beijing Institute of Hepatology, Beijing YouAn Hospital, Capital Medical University, Beijing, China.
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- Beijing Institute of Hepatology, Beijing YouAn Hospital, Capital Medical University, Beijing, China.
| | - Jizong Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
- Beijing Institute of Hepatology, Beijing YouAn Hospital, Capital Medical University, Beijing, China.
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3
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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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Garcia SM, Lau J, Diaz A, Chi H, Lizarraga M, Wague A, Montenegro C, Davies MR, Liu X, Feeley BT. Distinct human stem cell subpopulations drive adipogenesis and fibrosis in musculoskeletal injury. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.07.28.551038. [PMID: 38260367 PMCID: PMC10802239 DOI: 10.1101/2023.07.28.551038] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Fibroadipogenic progenitors (FAPs) maintain healthy skeletal muscle in homeostasis but drive muscle degeneration in chronic injuries by promoting adipogenesis and fibrosis. To uncover how these stem cells switch from a pro-regenerative to pro-degenerative role we perform single-cell mRNA sequencing of human FAPs from healthy and injured human muscles across a spectrum of injury, focusing on rotator cuff tears. We identify multiple subpopulations with progenitor, adipogenic, or fibrogenic gene signatures. We utilize full spectrum flow cytometry to identify distinct FAP subpopulations based on highly multiplexed protein expression. Injury severity increases adipogenic commitment of FAP subpopulations and is driven by the downregulation of DLK1. Treatment of FAPs both in vitro and in vivo with DLK1 reduces adipogenesis and fatty infiltration, suggesting that during injury, reduced DLK1 within a subpopulation of FAPs may drive degeneration. This work highlights how stem cells perform varied functions depending on tissue context, by dynamically regulating subpopulation fate commitment, which can be targeted improve patient outcomes after injury.
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Ferrer-Font L, Small SJ, Hyde E, Pilkington KR, Price KM. Panel Design and Optimization for Full Spectrum Flow Cytometry. Methods Mol Biol 2024; 2779:99-124. [PMID: 38526784 DOI: 10.1007/978-1-0716-3738-8_6] [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: 03/27/2024]
Abstract
Technological advancements in fluorescence flow cytometry and an ever-expanding understanding of the complexity of the immune system have led to the development of large flow cytometry panels, reaching up to 40 markers at the single-cell level. Full spectrum flow cytometry, which measures the full emission range of all the fluorophores present in the panel instead of only the emission peaks, is now routinely used in laboratories around the world, and the demand for this technology is rapidly increasing. With the ability to use larger and more complex staining panels, optimized protocols are vital for achieving the best panel design, panel optimization, and high-dimensional data analysis outcomes. In addition, a better understanding of how to fully characterize the autofluorescence of the sample, coupled with an intelligent panel design approach, allows improved marker resolution on highly autofluorescent tissues or cells. Here, we provide optimized step-by-step protocols for full spectrum flow cytometry, covering panel design and optimization, autofluorescence evaluation and strategy selection, and methods for performing longitudinal studies.
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Affiliation(s)
- Laura Ferrer-Font
- Hugh Green Cytometry Centre, Malaghan Institute of Medical Research, Wellington, New Zealand.
| | - Sam J Small
- Hugh Green Cytometry Centre, Malaghan Institute of Medical Research, Wellington, New Zealand
- Malaghan Institute of Medical Research, Wellington, New Zealand
| | - Evelyn Hyde
- Malaghan Institute of Medical Research, Wellington, New Zealand
| | | | - Kylie M Price
- Hugh Green Cytometry Centre, Malaghan Institute of Medical Research, Wellington, New Zealand
- Malaghan Institute of Medical Research, Wellington, New Zealand
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6
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Gao J, Luo Y, Li H, Zhao Y, Zhao J, Han X, Han J, Lin H, Qian F. Deep Immunophenotyping of Human Whole Blood by Standardized Multi-parametric Flow Cytometry Analyses. PHENOMICS (CHAM, SWITZERLAND) 2023; 3:309-328. [PMID: 37325713 PMCID: PMC10260734 DOI: 10.1007/s43657-022-00092-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 12/03/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Immunophenotyping is proving crucial to understanding the role of the immune system in health and disease. High-throughput flow cytometry has been used extensively to reveal changes in immune cell composition and function at the single-cell level. Here, we describe six optimized 11-color flow cytometry panels for deep immunophenotyping of human whole blood. A total of 51 surface antibodies, which are readily available and validated, were selected to identify the key immune cell populations and evaluate their functional state in a single assay. The gating strategies for effective flow cytometry data analysis are included in the protocol. To ensure data reproducibility, we provide detailed procedures in three parts, including (1) instrument characterization and detector gain optimization, (2) antibody titration and sample staining, and (3) data acquisition and quality checks. This standardized approach has been applied to a variety of donors for a better understanding of the complexity of the human immune system. Supplementary Information The online version contains supplementary material available at 10.1007/s43657-022-00092-9.
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Affiliation(s)
- Jian Gao
- State Key Laboratory of Genetic Engineering, Shanghai Public Health Clinical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center and School of Life Sciences, Fudan University, Shanghai, 200438 China
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, 200438 China
| | - Yali Luo
- State Key Laboratory of Genetic Engineering, Shanghai Public Health Clinical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center and School of Life Sciences, Fudan University, Shanghai, 200438 China
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, 200438 China
| | - Helian Li
- State Key Laboratory of Genetic Engineering, Shanghai Public Health Clinical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center and School of Life Sciences, Fudan University, Shanghai, 200438 China
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, 200438 China
| | - Yiran Zhao
- State Key Laboratory of Genetic Engineering, Shanghai Public Health Clinical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center and School of Life Sciences, Fudan University, Shanghai, 200438 China
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, 200438 China
| | - Jialin Zhao
- State Key Laboratory of Genetic Engineering, Shanghai Public Health Clinical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center and School of Life Sciences, Fudan University, Shanghai, 200438 China
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, 200438 China
| | - Xuling Han
- State Key Laboratory of Genetic Engineering, Shanghai Public Health Clinical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center and School of Life Sciences, Fudan University, Shanghai, 200438 China
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, 200438 China
| | - Jingxuan Han
- State Key Laboratory of Genetic Engineering, Shanghai Public Health Clinical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center and School of Life Sciences, Fudan University, Shanghai, 200438 China
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, 200438 China
| | - Huiqin Lin
- State Key Laboratory of Genetic Engineering, Shanghai Public Health Clinical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center and School of Life Sciences, Fudan University, Shanghai, 200438 China
| | - Feng Qian
- State Key Laboratory of Genetic Engineering, Shanghai Public Health Clinical Center, Human Phenome Institute, Zhangjiang Fudan International Innovation Center and School of Life Sciences, Fudan University, Shanghai, 200438 China
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, 200438 China
- Institute of Immunophenome, International Human Phenome Institutes (Shanghai), Shanghai, 200433 China
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7
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Qi H, Qin L, Li Y, Jin F, Kang Z, Hou J, Wang Y. A 16-color full spectrum flow cytometric analysis for comprehensive evaluation of T-cell reconstitution in SIV-infected rhesus macaques. J Immunol Methods 2023; 514:113404. [PMID: 36496008 DOI: 10.1016/j.jim.2022.113404] [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: 07/27/2022] [Revised: 11/01/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
T-cell reconstitution is central in human immunodeficiency virus (HIV) infection/disease progression. Simian immunodeficiency virus (SIV)-infected rhesus macaques (Macaca mulatta) have been the most widely used animal model for HIV research so far. An effective flow cytometry panel is crucial for monitoring the T cell reconstitution in SIV infection progression. We developed this sixteen-color flow cytometry-based panel for a T cell subsets analysis by manual gating and, once successfully gated, to characterize T cells function in-depth in rhesus macaques. This panel included markers to characterize CD4+ T cells and CD8+ T cells, T regulatory cells (Tregs), and T cell differentiation status (CD45RA and CCR7). Additionally, we included antibodies that measure T cell activation and proliferation molecules (CD69, HLA-DR, CD38 and Ki67), antibodies that examine the expressions of key PD-1 pathway molecule (PD-1), SIV potential target (CD32) and the primary SIV co-receptor CCR5 (CD195). High-dimensional single cell analysis was also performed to identify CD3+ T cells immunophenotypes of SIV-infected rhesus macaques. We designed this panel to evaluate the responses of different T cell subsets to SIV in whole blood from SIV-infected rhesus macaques.
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Affiliation(s)
- Hemei Qi
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
| | - Li Qin
- CAS Lamvac (Guangzhou) Biomedical Technology CO.,Ltd., Guangzhou 510663, China
| | - Yuefeng Li
- Landao Biotech Co., Ltd, Guangzhou 510555, China
| | - Fujun Jin
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Zhongkui Kang
- CAS Lamvac (Guangzhou) Biomedical Technology CO.,Ltd., Guangzhou 510663, China
| | - Jianghou Hou
- Kunming City Matermal and Child Health Hospital, Kunming 650013, China.
| | - Yifei Wang
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
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Ferrer-Font L, Kraker G, Hally KE, Price KM. Ensuring Full Spectrum Flow Cytometry Data Quality for High-Dimensional Data Analysis. Curr Protoc 2023; 3:e657. [PMID: 36744957 DOI: 10.1002/cpz1.657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Full spectrum flow cytometry (FSFC) allows for the analysis of more than 40 parameters at the single-cell level. Compared to the practice of manual gating, high-dimensional data analysis can be used to fully explore single-cell datasets and reduce analysis time. As panel size and complexity increases so too does the detail and time required to prepare and validate the quality of the resulting data for use in downstream high-dimensional data analyses. To ensure data analysis algorithms can be used efficiently and to avoid artifacts, some important steps should be considered. These include data cleaning (such as eliminating variable signal change over time, removing cell doublets, and antibody aggregates), proper unmixing of full spectrum data, ensuring correct scale transformation, and correcting for batch effects. We have developed a methodical step-by-step protocol to prepare full spectrum high-dimensional data for use with high-dimensional data analyses, with a focus on visualizing the impact of each step of data preparation using dimensionality reduction algorithms. Application of our workflow will aid FSFC users in their efforts to apply quality control methods to their datasets for use in high-dimensional analysis, and help them to obtain valid and reproducible results. © 2023 Wiley Periodicals LLC. Basic Protocol 1: Data cleaning Basic Protocol 2: Validating the quality of unmixing Basic Protocol 3: Data scaling Basic Protocol 4: Batch-to-batch normalization.
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Affiliation(s)
- Laura Ferrer-Font
- Hugh Green Cytometry Centre, Malaghan Institute of Medical Research, Wellington, New Zealand
| | | | - Kathryn E Hally
- Department of Surgery and Anaesthesia, The University of Otago, Wellington, New Zealand
| | - Kylie M Price
- Hugh Green Cytometry Centre, Malaghan Institute of Medical Research, Wellington, New Zealand
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Zhang T, Gao M, Chen X, Gao C, Feng S, Chen D, Wang J, Zhao X, Chen J. Demands and technical developments of clinical flow cytometry with emphasis in quantitative, spectral, and imaging capabilities. NANOTECHNOLOGY AND PRECISION ENGINEERING 2022. [DOI: 10.1063/10.0015301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
As the gold-standard method for single-cell analysis, flow cytometry enables high-throughput and multiple-parameter characterization of individual biological cells. This review highlights the demands for clinical flow cytometry in laboratory hematology (e.g., diagnoses of minimal residual disease and various types of leukemia), summarizes state-of-the-art clinical flow cytometers (e.g., FACSLyricTM by Becton Dickinson, DxFLEX by Beckman Coulter), then considers innovative technical improvements in flow cytometry (including quantitative, spectral, and imaging approaches) to address the limitations of clinical flow cytometry in hematology diagnosis. Finally, driven by these clinical demands, future developments in clinical flow cytometry are suggested.
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Affiliation(s)
- Ting Zhang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Mengge Gao
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, People’s Republic of China
| | - Xiao Chen
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Chiyuan Gao
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Shilun Feng
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
| | - Deyong Chen
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Junbo Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiaosu Zhao
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, People’s Republic of China
| | - Jian Chen
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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10
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Lannigan J. Flow cytometry has seen the light: All of it. Cytometry A 2022; 101:809-811. [PMID: 36203398 DOI: 10.1002/cyto.a.24694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2022] [Indexed: 01/27/2023]
Affiliation(s)
- Joanne Lannigan
- Flow Cytometry Support Services, LLC, Alexandria, Virginia, USA
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11
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Cusinato M, Hadcocks L, Yona S, Planche T, Macallan D. Increased monocyte distribution width in COVID-19 and sepsis arises from a complex interplay of altered monocyte cellular size and subset frequency. Int J Lab Hematol 2022; 44:1029-1039. [PMID: 35915915 PMCID: PMC9538408 DOI: 10.1111/ijlh.13941] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 07/14/2022] [Indexed: 12/01/2022]
Abstract
Introduction Monocyte distribution width (MDW), a parameter generated alongside full blood counts (FBC) in new‐generation haematology analysers, has been proposed as a diagnostic test for severe infection/sepsis. It represents the standard deviation (SD) of the monocyte mean volume (MMV). Methods This study aimed to compare monocyte volumetric parameters retrieved by the UniCel DxH 900 haematology analyser (MMV and MDW) against corresponding parameters from the same sample measured using flow cytometry (forward scatter [FSC] mean and SD) in combination with phenotypic characterization of monocyte subtypes. We analysed blood samples from healthy individuals (n = 11) and patients with conditions associated with elevated MDW: sepsis (n = 26) and COVID‐19 (n = 15). Results Between‐instrument comparisons of monocyte volume parameters (MMV vs. FSC‐mean) showed relatively good levels of correlation, but comparisons across volume variability parameters (MDW vs. FSC‐SD) were poor. Stratification on sample type revealed this lack of correlation only within the sepsis group. Flow cytometry analysis revealed that in healthy controls intermediate monocytes are the largest and non‐classical the smallest cells. In each disease state, however, each monocyte subset undergoes different changes in volume and frequency that together determine the overall configuration of the monocyte population. Increased MDW was associated with reduced classical monocyte frequency and increased intermediate monocyte size. In COVID‐19, the range of monocyte sizes (smallest to largest) reduced, whereas in sepsis it increased. Conclusion Increased MDW in COVID‐19 and sepsis has no single flow cytometric phenotypic correlate. It represents—within a single value—the delicate equipoise between monocyte subset frequency and size.
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Affiliation(s)
- Martina Cusinato
- Institute for Infection and Immunity, St. George's, University of London, London, UK
| | - Linda Hadcocks
- Institute for Infection and Immunity, St. George's, University of London, London, UK
| | - Simon Yona
- The Institute of Oral and Biomedical Research, Faculty of Dental Medicine, Hebrew University, Ein-Kerem Campus, Jerusalem, Israel
| | - Timothy Planche
- Institute for Infection and Immunity, St. George's, University of London, London, UK.,Infection Care Group, St. George's University Hospitals NHS Foundation Trust, London, UK
| | - Derek Macallan
- Institute for Infection and Immunity, St. George's, University of London, London, UK.,Infection Clinical Academic Group, St. George's University Hospitals NHS Foundation Trust, London, UK
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Farrand K, Holz LE, Ferrer-Font L, Wilson MD, Ganley M, Minnell JJ, Tang CW, Painter GF, Heath WR, Hermans IF, Burn OK. Using Full-Spectrum Flow Cytometry to Phenotype Memory T and NKT Cell Subsets with Optimized Tissue-Specific Preparation Protocols. Curr Protoc 2022; 2:e482. [PMID: 35819836 DOI: 10.1002/cpz1.482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Full-spectrum flow cytometry is now routinely used in many laboratories internationally, and the demand for this technology is rapidly increasing. With capacity to use larger and more complex staining panels, standardized protocols are required for optimal panel design and analysis. Importantly, for ex vivo analysis, tissue preparation methods also need to be optimized to ensure samples are truly representative of tissues in situ. This is particularly relevant given the recent interest in adaptive immune cells that form residency in specific organs. Here we provide optimized protocols for tissue processing and phenotyping of memory T cells and natural killer T (NKT) cell subsets from liver, lung, spleen, and lymph node using full-spectrum flow cytometry. We provide a 21-color antibody panel for identification of different memory subsets, including tissue-resident memory T (TRM ) cells, which are increasingly regarded as important effectors in adaptive immunity. We show that processing procedures can affect outcomes, with liver TRM cells particularly sensitive to heat, such that accurate evaluation requires fast processing at defined temperatures. © 2022 Wiley Periodicals LLC. Basic Protocol 1: Processing mouse liver for flow cytometric analysis of memory T and NKT cell subsets Basic Protocol 2: Processing mouse spleen for flow cytometric analysis of memory T and NKT cell subsets Basic Protocol 3: Processing mouse lungs for flow cytometric analysis of memory T and NKT cell subsets Basic Protocol 4: Processing mouse lymph nodes for flow cytometric analysis of memory T and NKT cell subsets Basic Protocol 5: Staining and flow cytometric analysis of samples for memory T and NKT cell subsets Support Protocol: Obtaining cell counts from flow cytometry data.
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Affiliation(s)
- Kathryn Farrand
- Malaghan Institute of Medical Research, Wellington, New Zealand
| | - Lauren E Holz
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Victoria, Australia
| | - Laura Ferrer-Font
- Malaghan Institute of Medical Research, Wellington, New Zealand
- Maurice Wilkins Centre, Auckland, New Zealand
| | | | - Mitch Ganley
- Ferrier Research Institute, Victoria University of Wellington, Wellington, New Zealand
| | | | - Ching-Wen Tang
- Malaghan Institute of Medical Research, Wellington, New Zealand
| | - Gavin F Painter
- Ferrier Research Institute, Victoria University of Wellington, Wellington, New Zealand
| | - William R Heath
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Victoria, Australia
| | - Ian F Hermans
- Malaghan Institute of Medical Research, Wellington, New Zealand
- Maurice Wilkins Centre, Auckland, New Zealand
| | - Olivia K Burn
- Malaghan Institute of Medical Research, Wellington, New Zealand
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