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Qiu W, Guo R, Yu H, Chen X, Chen Z, Ding D, Zhong J, Yang Y, Fang F. Single-cell atlas of human gingiva unveils a NETs-related neutrophil subpopulation regulating periodontal immunity. J Adv Res 2024:S2090-1232(24)00312-6. [PMID: 39084404 DOI: 10.1016/j.jare.2024.07.028] [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: 04/25/2024] [Revised: 07/27/2024] [Accepted: 07/28/2024] [Indexed: 08/02/2024] Open
Abstract
INTRODUCTION Exaggerated neutrophil recruitment and activation are the major features of pathological alterations in periodontitis, in which neutrophil extracellular traps (NETs) are considered to be responsible for inflammatory periodontal lesions. Despite the critical role of NETs in the development and progression of periodontitis, their specific functions and mechanisms remain unclear. OBJECTIVES To demonstrate the important functions and specific mechanisms of NETs involved in periodontal immunopathology. METHODS We performed single-cell RNA sequencing on gingival tissues from both healthy individuals and patients diagnosed with periodontitis. High-dimensional weighted gene co-expression network analysis and pseudotime analysis were then applied to characterize the heterogeneity of neutrophils. Animal models of periodontitis were treated with NETs inhibitors to investigate the effects of NETs in severe periodontitis. Additionally, we established a periodontitis prediction model based on NETs-related genes using six types of machine learning methods. Cell-cell communication analysis was used to identify ligand-receptor pairs among the major cell groups within the immune microenvironment. RESULTS We constructed a single-cell atlas of the periodontal microenvironment and obtained nine major cell populations. We further identified a NETs-related subgroup (NrNeu) in neutrophils. An in vivo inhibition experiment confirmed the involvement of NETs in gingival inflammatory infiltration and alveolar bone absorption in severe periodontitis. We further screened three key NETs-related genes (PTGS2, MME and SLC2A3) and verified that they have the potential to predict periodontitis. Moreover, our findings revealed that gingival fibroblasts had the most interactions with NrNeu and that they might facilitate the production of NETs through the MIF-CD74/CXCR4 axis in periodontitis. CONCLUSION This study highlights the pathogenic role of NETs in periodontal immunity and elucidates the specific regulatory relationship by which gingival fibroblasts activate NETs, which provides new insights into the clinical diagnosis and treatment of periodontitis.
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Affiliation(s)
- Wei Qiu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Ruiming Guo
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hongwen Yu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xiaoxin Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zehao Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Dian Ding
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jindou Zhong
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yumeng Yang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Fuchun Fang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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Brannon ER, Piegols LD, Cady G, Kupor D, Chu X, Guevara MV, Lima MRN, Kanthi Y, Pinsky DJ, Uhrich KE, Eniola-Adefeso O. Polymerized Salicylic Acid Microparticles Reduce the Progression and Formation of Human Neutrophil Extracellular Traps (NET)s. Adv Healthc Mater 2024:e2400443. [PMID: 38898728 DOI: 10.1002/adhm.202400443] [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: 02/04/2024] [Revised: 06/02/2024] [Indexed: 06/21/2024]
Abstract
Neutrophils can contribute to inflammatory disease propagation via innate mechanisms intended for inflammation resolution. For example, neutrophil extracellular traps (NETs) are necessary for trapping pathogens but can contribute to clot formation and blood flow restriction, that is, ischemia. Currently, no therapeutics in the clinic directly target NETs despite the known involvement of NETs contributing to mortality and increased disease severity. Vascular-deployed particle-based therapeutics are a novel and robust alternative to traditional small-molecule drugs by enhancing drug delivery to cells of interest. This work designs a high-throughput assay to investigate the immunomodulatory behavior and functionality of salicylic acid-based polymer-based particle therapeutics against NETosis in human neutrophils. Briefly, this work finds that polymeric composition plays a role, and particle size can also influence rates of NETosis. Salicylate-based polymeric (Poly-SA) particles are found to functionally inhibit NETosis depending on the particle size and concentration exposed to neutrophils. This work demonstrates the high throughput method can help fast-track particle-based therapeutic optimization and design, more efficiently preparing this innovative therapeutics for the clinic.
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Affiliation(s)
- Emma R Brannon
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC B28, Ann Arbor, MI, 48109, USA
| | - Logan D Piegols
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC B28, Ann Arbor, MI, 48109, USA
| | - Gillian Cady
- Division of Cardiovascular Medicine, Samuel and Jean Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Daniel Kupor
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC B28, Ann Arbor, MI, 48109, USA
| | - Xueqi Chu
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC B28, Ann Arbor, MI, 48109, USA
| | - M Valentina Guevara
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC B28, Ann Arbor, MI, 48109, USA
| | - Mariana R N Lima
- Department of Chemistry, University of California Riverside, Riverside, CA, 92521, USA
| | - Yogendra Kanthi
- Division of Cardiovascular Medicine, Samuel and Jean Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, 48109, USA
- Section of Vascular Thrombosis & Inflammation, Division of Intramural Research, National Heart, Lung, and Blood Institute, Bethesda, MD, 20892, USA
| | - David J Pinsky
- Division of Cardiovascular Medicine, Samuel and Jean Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Kathryn E Uhrich
- Department of Chemistry, University of California Riverside, Riverside, CA, 92521, USA
| | - Omolola Eniola-Adefeso
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC B28, Ann Arbor, MI, 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
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Tilinova OM, Inozemtsev V, Sherstyukova E, Kandrashina S, Pisarev M, Grechko A, Vorobjeva N, Sergunova V, Dokukin ME. Cell Surface Parameters for Accessing Neutrophil Activation Level with Atomic Force Microscopy. Cells 2024; 13:306. [PMID: 38391919 PMCID: PMC10886474 DOI: 10.3390/cells13040306] [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: 12/11/2023] [Revised: 01/19/2024] [Accepted: 02/04/2024] [Indexed: 02/24/2024] Open
Abstract
In this study, we examine the topography and adhesion images of the cell surface of neutrophils during the activation process. Our analysis of cell surface parameters indicates that the most significant changes in neutrophils occur within the first 30 min of activation, suggesting that reactive oxygen species may require approximately this amount of time to activate the cells. Interestingly, we observed surface granular structure as early as 10 min after neutrophil activation when examining atomic force microscopy images. This finding aligns with the reorganization observed within the cells under confocal laser scanning microscopy. By analyzing the cell surface images of adhesion, we identified three spatial surface parameters that correlate with the activation time. This finding enables us to estimate the degree of activation by using atomic force microscopy maps of the cell surface.
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Affiliation(s)
| | - Vladimir Inozemtsev
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia
| | - Ekaterina Sherstyukova
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia
| | - Snezhanna Kandrashina
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia
| | - Mikhail Pisarev
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia
| | - Andrey Grechko
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia
| | - Nina Vorobjeva
- Department of Immunology, Biology Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Viktoria Sergunova
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia
| | - Maxim E Dokukin
- Sarov Physics and Technology Institute, MEPhI, 607186 Sarov, Russia
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Sounbuli K, Alekseeva LA, Markov OV, Mironova NL. A Comparative Study of Different Protocols for Isolation of Murine Neutrophils from Bone Marrow and Spleen. Int J Mol Sci 2023; 24:17273. [PMID: 38139101 PMCID: PMC10743699 DOI: 10.3390/ijms242417273] [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: 10/10/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Neutrophils are considered as the main player in innate immunity. In the last few years, it has been shown that they are involved in different physiological conditions and diseases. However, progress in the field of neutrophil biology is relatively slow due to existing difficulties in neutrophil isolation and maintenance in culture. Here we compare four protocols based on density-gradient and immunomagnetic methods for isolation of murine neutrophils from bone marrow and spleen. Neutrophil isolation was performed using Ficoll 1.077/1.119 g/mL density gradient, Ficoll 1.083/1.090/1.110 g/mL density gradient and immunomagnetic method of negative and positive selection. The different protocols were compared with respect to sample purity, cell viability, yield, and cost. The functionality of isolated neutrophils was checked by NETosis analysis and neutrophil oxidative burst test. Obtained data revealed that given purity/yield/viability/cost ratio the protocol based on cell centrifugation on Ficoll 1.077/1.119 g/mL density gradient is recommended for isolation of neutrophils from bone marrow, whereas immunomagnetic method of positive selection using Dynabeads is recommended for isolation of splenic neutrophils.
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Affiliation(s)
- Khetam Sounbuli
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave. 8, 630090 Novosibirsk, Russia; (K.S.); (L.A.A.); (O.V.M.)
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Ludmila A. Alekseeva
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave. 8, 630090 Novosibirsk, Russia; (K.S.); (L.A.A.); (O.V.M.)
| | - Oleg V. Markov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave. 8, 630090 Novosibirsk, Russia; (K.S.); (L.A.A.); (O.V.M.)
| | - Nadezhda L. Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave. 8, 630090 Novosibirsk, Russia; (K.S.); (L.A.A.); (O.V.M.)
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Sergunova V, Inozemtsev V, Vorobjeva N, Kozlova E, Sherstyukova E, Lyapunova S, Chernysh A. Morphology of Neutrophils during Their Activation and NETosis: Atomic Force Microscopy Study. Cells 2023; 12:2199. [PMID: 37681931 PMCID: PMC10486724 DOI: 10.3390/cells12172199] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023] Open
Abstract
Confocal microscopy and fluorescence staining of cellular structures are commonly used to study neutrophil activation and NETosis. However, they do not reveal the specific characteristics of the neutrophil membrane surface, its nanostructure, and morphology. The aim of this study was to reveal the topography and nanosurface characteristics of neutrophils during activation and NETosis using atomic force microscopy (AFM). We showed the main stages of neutrophil activation and NETosis, which include control cell spreading, cell fragment formation, fusion of nuclear segments, membrane disruption, release of neutrophil extracellular traps (NETs), and final cell disintegration. Changes in neutrophil membrane nanosurface parameters during activation and NETosis were quantified. It was shown that with increasing activation time there was a decrease in the spectral intensity of the spatial periods. Exposure to the activator A23187 resulted in an increase in the number and average size of cell fragments over time. Exposure to the activators A23187 and PMA (phorbol 12-myristate 13-acetate) caused the same pattern of cell transformation from spherical cells with segmented nuclei to disrupted cells with NET release. A23187 induced NETosis earlier than PMA, but PMA resulted in more cells with NETosis at the end of the specified time interval (180 min). In our study, we used AFM as the main research tool. Confocal laser-scanning microscopy (CLSM) images are provided for identification and detailed analysis of the phenomena studied. In this way, we exploited the advantages of both techniques.
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Affiliation(s)
- Viktoria Sergunova
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (V.I.); (E.K.); (E.S.); (S.L.); (A.C.)
| | - Vladimir Inozemtsev
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (V.I.); (E.K.); (E.S.); (S.L.); (A.C.)
- Koltzov Institute of Developmental Biology of Russian Academy of Sciences, 119334 Moscow, Russia
| | - Nina Vorobjeva
- Department of Immunology, Biology Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia;
| | - Elena Kozlova
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (V.I.); (E.K.); (E.S.); (S.L.); (A.C.)
- Department of Medical and Biological Physics, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Ekaterina Sherstyukova
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (V.I.); (E.K.); (E.S.); (S.L.); (A.C.)
- Department of Medical and Biological Physics, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Snezhanna Lyapunova
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (V.I.); (E.K.); (E.S.); (S.L.); (A.C.)
| | - Aleksandr Chernysh
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, V.A. Negovsky Research Institute of General Reanimatology, 107031 Moscow, Russia; (V.I.); (E.K.); (E.S.); (S.L.); (A.C.)
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