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Chen WA, Boskovic DS. Neutrophil Extracellular DNA Traps in Response to Infection or Inflammation, and the Roles of Platelet Interactions. Int J Mol Sci 2024; 25:3025. [PMID: 38474270 DOI: 10.3390/ijms25053025] [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: 11/30/2023] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024] Open
Abstract
Neutrophils present the host's first line of defense against bacterial infections. These immune effector cells are mobilized rapidly to destroy invading pathogens by (a) reactive oxygen species (ROS)-mediated oxidative bursts and (b) via phagocytosis. In addition, their antimicrobial service is capped via a distinct cell death mechanism, by the release of their own decondensed nuclear DNA, supplemented with a variety of embedded proteins and enzymes. The extracellular DNA meshwork ensnares the pathogenic bacteria and neutralizes them. Such neutrophil extracellular DNA traps (NETs) have the potential to trigger a hemostatic response to pathogenic infections. The web-like chromatin serves as a prothrombotic scaffold for platelet adhesion and activation. What is less obvious is that platelets can also be involved during the initial release of NETs, forming heterotypic interactions with neutrophils and facilitating their responses to pathogens. Together, the platelet and neutrophil responses can effectively localize an infection until it is cleared. However, not all microbial infections are easily cleared. Certain pathogenic organisms may trigger dysregulated platelet-neutrophil interactions, with a potential to subsequently propagate thromboinflammatory processes. These may also include the release of some NETs. Therefore, in order to make rational intervention easier, further elucidation of platelet, neutrophil, and pathogen interactions is still needed.
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Affiliation(s)
- William A Chen
- Division of Biochemistry, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA
- Department of Pharmaceutical and Administrative Sciences, School of Pharmacy, Loma Linda University, Loma Linda, CA 92350, USA
| | - Danilo S Boskovic
- Division of Biochemistry, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA
- Department of Earth and Biological Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA
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2
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Wu Z, Liu Q, Zhao Y, Fang C, Zheng W, Zhao Z, Zhang N, Yang X. Rhogef17: A novel target for endothelial barrier function. Biomed Pharmacother 2024; 170:115983. [PMID: 38134633 DOI: 10.1016/j.biopha.2023.115983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/29/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
ARHGEF17 encodes the protein RhoGEF17, which is highly expressed in vascular endothelial cells. It is a guanine nucleotide exchange factor (GEF) that accelerates the exchange of GDP with GTP on many small GTPases through its Dbl homology (DH) domain, enabling the activation of Rho-GTPases such as RhoA, RhoB, and RhoC. Rho GTPase-regulated changes in the actin cytoskeleton and cell adhesion kinetics are the main mechanisms mediating many endothelial cell (EC) alterations, including cell morphology, migration, and division changes, which profoundly affect EC barrier function. This review focuses on ARHGEF17 expression, activation and biological functions in ECs, linking its regulation of cellular morphology, migration, mitosis and other cellular behaviors to disease onset and progression. Understanding ARHGEF17 mechanisms of action will contribute to the design of therapeutic approaches targeting RhoGEF17, a potential drug target for the treatment of various endothelium-related diseases, Such as vascular inflammation, carcinogenesis and transendothelial metastasis of tumors.
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Affiliation(s)
- Zhuolin Wu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin Medical University General Hospital, Tianjin, China
| | - Quanlei Liu
- Department of Neurosurgery, Capital Medical University, Xuanwu Hospital, Beijing, China
| | - Yan Zhao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin Medical University General Hospital, Tianjin, China
| | | | - Wen Zheng
- Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Zilin Zhao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin Medical University General Hospital, Tianjin, China
| | - Nai Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Xinyu Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin Medical University General Hospital, Tianjin, China.
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3
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Stierschneider A, Wiesner C. Shedding light on the molecular and regulatory mechanisms of TLR4 signaling in endothelial cells under physiological and inflamed conditions. Front Immunol 2023; 14:1264889. [PMID: 38077393 PMCID: PMC10704247 DOI: 10.3389/fimmu.2023.1264889] [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: 07/21/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023] Open
Abstract
Toll-like receptor 4 (TLR4) are part of the innate immune system. They are capable of recognizing pathogen-associated molecular patterns (PAMPS) of microbes, and damage-associated molecular patterns (DAMPs) of damaged tissues. Activation of TLR4 initiates downstream signaling pathways that trigger the secretion of cytokines, type I interferons, and other pro-inflammatory mediators that are necessary for an immediate immune response. However, the systemic release of pro-inflammatory proteins is a powerful driver of acute and chronic inflammatory responses. Over the past decades, immense progress has been made in clarifying the molecular and regulatory mechanisms of TLR4 signaling in inflammation. However, the most common strategies used to study TLR4 signaling rely on genetic manipulation of the TLR4 or the treatment with agonists such as lipopolysaccharide (LPS) derived from the outer membrane of Gram-negative bacteria, which are often associated with the generation of irreversible phenotypes in the target cells or unintended cytotoxicity and signaling crosstalk due to off-target or pleiotropic effects. Here, optogenetics offers an alternative strategy to control and monitor cellular signaling in an unprecedented spatiotemporally precise, dose-dependent, and non-invasive manner. This review provides an overview of the structure, function and signaling pathways of the TLR4 and its fundamental role in endothelial cells under physiological and inflammatory conditions, as well as the advances in TLR4 modulation strategies.
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Affiliation(s)
| | - Christoph Wiesner
- Department Science & Technology, Institute Biotechnology, IMC Krems University of Applied Sciences, Krems, Austria
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4
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Kim J, Mooren OL, Onken MD, Cooper JA. Septin and actin contributions to endothelial cell-cell junctions and monolayer integrity. Cytoskeleton (Hoboken) 2023; 80:228-241. [PMID: 36205643 PMCID: PMC10079785 DOI: 10.1002/cm.21732] [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: 07/08/2022] [Revised: 10/02/2022] [Accepted: 10/04/2022] [Indexed: 11/10/2022]
Abstract
Septins in endothelial cells (ECs) have important roles supporting the integrity of the endothelial monolayer. Cell-cell junctions in EC monolayers are highly dynamic, with continuous retractions and protrusions. Depletion of septins in ECs leads to disruption of cell-cell junctions, which are composed of VE-cadherin and other junctional proteins. In EC monolayers, septins are concentrated at the plasma membrane at sites of cell-cell contact, in curved- and scallop-shaped patterns. These membrane-associated septin accumulations are located in regions of positive membrane curvature, and those regions are often associated with and immediately adjacent to actin-rich protrusions with negative membrane curvature. EC septins associate directly with plasma membrane lipids, based on findings with site-specific mutations of septins in ECs, which is consistent with biochemical and cell biological studies in other systems. Loss of septins leads to disruption of the EC monolayer, and gaps form between cells. The number and breadth of cell-cell contacts and junctions decreases, and the number and frequency of retractions, ruffles, and protrusions at cell edges also decreases. In addition, loss of septins leads to decreased amounts of F-actin at the cortical membrane, along with increased amounts of F-actin in stress fibers of the cytoplasm. Endothelial monolayer disruption from loss of septins is also associated with decreased transendothelial electric resistance (TEER) and increased levels of transendothelial migration (TEM) by immune and cancer cells, owing to the gaps in the monolayer. A current working model is that assembly of septin filaments at regions of positive membrane curvature contributes to a mechanical footing or base for actin-based protrusive forces generated at adjoining regions of the membrane. Specific molecular interactions between the septin and actin components of the cytoskeleton may also be important contributors. Regulators of actin assembly may promote and support the assembly of septin filaments at the membrane, as part of a molecular feedback loop between the assembly of septin and actin filaments.
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Affiliation(s)
- Joanna Kim
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St Louis, Missouri, USA
| | - Olivia L Mooren
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St Louis, Missouri, USA
| | - Michael D Onken
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St Louis, Missouri, USA
| | - John A Cooper
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St Louis, Missouri, USA
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5
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Mahdinia E, Shokri N, Taheri AT, Asgharzadeh S, Elahimanesh M, Najafi M. Cellular crosstalk in atherosclerotic plaque microenvironment. Cell Commun Signal 2023; 21:125. [PMID: 37254185 DOI: 10.1186/s12964-023-01153-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/28/2023] [Indexed: 06/01/2023] Open
Abstract
Atherosclerosis is an underlying pathology of many vascular diseases as a result of cellular, structural and molecular dysfunctions within the sub-endothelial space. This review deals with the events involved in the formation, growth and remodeling of plaque, including the cell recruitment, cell polarization, and cell fat droplets. It also describes cross talking between endothelial cells, macrophages, and vascular smooth muscle cells, as well as the cellular pathways involved in plaque development in the plaque microenvironment. Finally, it describes the plaque structural components and the role of factors involved in the rupture and erosion of plaques in the vessel. Video Abstract.
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Affiliation(s)
- Elmira Mahdinia
- Department of Clinical Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nafiseh Shokri
- Department of Clinical Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Abdolkarim Talebi Taheri
- Department of Clinical Biochemistry, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sahar Asgharzadeh
- Department of Clinical Biochemistry, Faculty of Medicine, Ghazvin University of Medical Sciences, Ghazvin, Iran
| | - Mohammad Elahimanesh
- Department of Clinical Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Najafi
- Department of Clinical Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
- Microbial Biotechnology Center, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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6
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Frank JC, Song BH, Lee YM. Mice as an Animal Model for Japanese Encephalitis Virus Research: Mouse Susceptibility, Infection Route, and Viral Pathogenesis. Pathogens 2023; 12:pathogens12050715. [PMID: 37242385 DOI: 10.3390/pathogens12050715] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/09/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Japanese encephalitis virus (JEV), a zoonotic flavivirus, is principally transmitted by hematophagous mosquitoes, continually between susceptible animals and incidentally from those animals to humans. For almost a century since its discovery, JEV was geographically confined to the Asia-Pacific region with recurrent sizable outbreaks involving wildlife, livestock, and people. However, over the past decade, it has been detected for the first time in Europe (Italy) and Africa (Angola) but has yet to cause any recognizable outbreaks in humans. JEV infection leads to a broad spectrum of clinical outcomes, ranging from asymptomatic conditions to self-limiting febrile illnesses to life-threatening neurological complications, particularly Japanese encephalitis (JE). No clinically proven antiviral drugs are available to treat the development and progression of JE. There are, however, several live and killed vaccines that have been commercialized to prevent the infection and transmission of JEV, yet this virus remains the main cause of acute encephalitis syndrome with high morbidity and mortality among children in the endemic regions. Therefore, significant research efforts have been directed toward understanding the neuropathogenesis of JE to facilitate the development of effective treatments for the disease. Thus far, multiple laboratory animal models have been established for the study of JEV infection. In this review, we focus on mice, the most extensively used animal model for JEV research, and summarize the major findings on mouse susceptibility, infection route, and viral pathogenesis reported in the past and present, and discuss some unanswered key questions for future studies.
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Affiliation(s)
- Jordan C Frank
- Department of Animal, Dairy, and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT 84322, USA
| | - Byung-Hak Song
- Department of Animal, Dairy, and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT 84322, USA
| | - Young-Min Lee
- Department of Animal, Dairy, and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT 84322, USA
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7
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Gusev E, Sarapultsev A. Atherosclerosis and Inflammation: Insights from the Theory of General Pathological Processes. Int J Mol Sci 2023; 24:ijms24097910. [PMID: 37175617 PMCID: PMC10178362 DOI: 10.3390/ijms24097910] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Recent advances have greatly improved our understanding of the molecular mechanisms behind atherosclerosis pathogenesis. However, there is still a need to systematize this data from a general pathology perspective, particularly with regard to atherogenesis patterns in the context of both canonical and non-classical inflammation types. In this review, we analyze various typical phenomena and outcomes of cellular pro-inflammatory stress in atherosclerosis, as well as the role of endothelial dysfunction in local and systemic manifestations of low-grade inflammation. We also present the features of immune mechanisms in the development of productive inflammation in stable and unstable plaques, along with their similarities and differences compared to canonical inflammation. There are numerous factors that act as inducers of the inflammatory process in atherosclerosis, including vascular endothelium aging, metabolic dysfunctions, autoimmune, and in some cases, infectious damage factors. Life-critical complications of atherosclerosis, such as cardiogenic shock and severe strokes, are associated with the development of acute systemic hyperinflammation. Additionally, critical atherosclerotic ischemia of the lower extremities induces paracoagulation and the development of chronic systemic inflammation. Conversely, sepsis, other critical conditions, and severe systemic chronic diseases contribute to atherogenesis. In summary, atherosclerosis can be characterized as an independent form of inflammation, sharing similarities but also having fundamental differences from low-grade inflammation and various variants of canonical inflammation (classic vasculitis).
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Affiliation(s)
- Evgenii Gusev
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049 Ekaterinburg, Russia
| | - Alexey Sarapultsev
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049 Ekaterinburg, Russia
- Russian-Chinese Education and Research Center of System Pathology, South Ural State University, 454080 Chelyabinsk, Russia
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8
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Varela-Martínez E, Bilbao-Arribas M, Abendaño N, Asín J, Pérez M, Luján L, Jugo BM. Identification and characterization of miRNAs in spleens of sheep subjected to repetitive vaccination. Sci Rep 2023; 13:6239. [PMID: 37069162 PMCID: PMC10107569 DOI: 10.1038/s41598-023-32603-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/30/2023] [Indexed: 04/19/2023] Open
Abstract
Accumulative evidence has shown that short non-coding RNAs such as miRNAs can regulate the innate and adaptive immune responses. Aluminium hydroxide is a commonly used adjuvant in human and veterinary vaccines. Despite its extended use, its mechanism of action is not fully understood and very few in vivo studies have been done to enhance understanding at the molecular level. In this work, we took advantage of a previous long-term experiment in which lambs were exposed to three different treatments by parallel subcutaneous inoculations with aluminium-containing commercial vaccines, an equivalent dose of aluminium or mock injections. Spleen samples were used for miRNA-seq. A total of 46 and 16 miRNAs were found differentially expressed when animals inoculated with commercial vaccines or the adjuvant alone were compared with control animals, respectively. Some miRNAs previously related to macrophage polarization were found dysregulated exclusively by the commercial vaccine treatment but not in the aluminium inoculated animals. The dysregulated miRNAs in vaccine group let-7b-5p, miR-29a-3p, miR-27a and miR-101-3p are candidates for further research, since they may play key roles in the immune response induced by aluminium adjuvants added to vaccines. Finally, protein-protein interaction network analysis points towards leucocyte transendothelial migration as a specific mechanism in animals receiving adjuvant only.
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Affiliation(s)
- Endika Varela-Martínez
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena auzoa, 48940, Leioa, Spain
| | - Martin Bilbao-Arribas
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena auzoa, 48940, Leioa, Spain
| | - Naiara Abendaño
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena auzoa, 48940, Leioa, Spain
| | - Javier Asín
- Department of Animal Pathology, Veterinary Faculty, University of Zaragoza, Zaragoza, Spain
| | - Marta Pérez
- Department of Animal Pathology, Veterinary Faculty, University of Zaragoza, Zaragoza, Spain
| | - Lluís Luján
- Department of Animal Pathology, Veterinary Faculty, University of Zaragoza, Zaragoza, Spain
| | - Begoña M Jugo
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena auzoa, 48940, Leioa, Spain.
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9
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George S, Martin JAJ, Graziani V, Sanz-Moreno V. Amoeboid migration in health and disease: Immune responses versus cancer dissemination. Front Cell Dev Biol 2023; 10:1091801. [PMID: 36699013 PMCID: PMC9869768 DOI: 10.3389/fcell.2022.1091801] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/15/2022] [Indexed: 01/07/2023] Open
Abstract
Cell migration is crucial for efficient immune responses and is aberrantly used by cancer cells during metastatic dissemination. Amoeboid migrating cells use myosin II-powered blebs to propel themselves, and change morphology and direction. Immune cells use amoeboid strategies to respond rapidly to infection or tissue damage, which require quick passage through several barriers, including blood, lymph and interstitial tissues, with complex and varied environments. Amoeboid migration is also used by metastatic cancer cells to aid their migration, dissemination and survival, whereby key mechanisms are hijacked from professionally motile immune cells. We explore important parallels observed between amoeboid immune and cancer cells. We also consider key distinctions that separate the lifespan, state and fate of these cell types as they migrate and/or fulfil their function. Finally, we reflect on unexplored areas of research that would enhance our understanding of how tumour cells use immune cell strategies during metastasis, and how to target these processes.
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10
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Lu Y, Yang H, Cao Y, Wang Y, Wu M, He B, Xu J, Su Z, Luo W, Liu Y, Hu W. A survival model for prognostic prediction based on ferroptosis-associated genes and the association with immune infiltration in lung squamous cell carcinoma. PLoS One 2023; 18:e0282888. [PMID: 36928232 PMCID: PMC10019706 DOI: 10.1371/journal.pone.0282888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 02/25/2023] [Indexed: 03/18/2023] Open
Abstract
Lung squamous cell carcinoma (LUSC) is the primary pathological type of lung cancer with a less favorable prognosis. This study attempts to construct a ferroptosis-associated signature associated with overall survival (OS) that can predict the prognosis of LUSC and explore its relationship with immune infiltration. A 5 ferroptosis-associated gene model was constructed by LASSO-penalized regression analysis to predict the prognosis of patients with LUSC in the TCGA database and validated in the GEO and TCGA databases. Patients were stratified into high-risk and low-risk groups by the median value of the risk scores, and the former prognosis was significantly worse (P<0.001). Additionally, we found a certain association between the two risk groups and immune infiltration through CIBERSORT. Meanwhile, the differentially expressed genes (DEGs) between normal and tumor tissue were used to perform functional analysis, which showed a significant association with leukocyte transendothelial migration pathways in the TCGA cohort. In addition, immune cell infiltration analysis confirmed that M2 macrophages were significantly highly expressed in the high-risk group. Overall, the model successfully established by ferroptosis-associated genes suggests that ferroptosis may be related to immune infiltration in LUSC.
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Affiliation(s)
- Yanyi Lu
- Department of Thoracic Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
| | - Hua Yang
- Department of pathology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
| | - Yunliang Cao
- Department of Thoracic Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
| | - Yunan Wang
- Department of Thoracic Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
| | - Mengjia Wu
- Department of Thoracic Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
| | - Bo He
- Department of Thoracic Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
| | - Junzhu Xu
- Department of Thoracic Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
| | - Zixuan Su
- Department of Thoracic Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
| | - Wen Luo
- Department of Thoracic Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
| | - Yuyang Liu
- Department of pathology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
| | - Wei Hu
- Department of Thoracic Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi City, Guizhou Province, China
- * E-mail:
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11
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The potential role of ischaemia-reperfusion injury in chronic, relapsing diseases such as rheumatoid arthritis, Long COVID, and ME/CFS: evidence, mechanisms, and therapeutic implications. Biochem J 2022; 479:1653-1708. [PMID: 36043493 PMCID: PMC9484810 DOI: 10.1042/bcj20220154] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 02/07/2023]
Abstract
Ischaemia–reperfusion (I–R) injury, initiated via bursts of reactive oxygen species produced during the reoxygenation phase following hypoxia, is well known in a variety of acute circumstances. We argue here that I–R injury also underpins elements of the pathology of a variety of chronic, inflammatory diseases, including rheumatoid arthritis, ME/CFS and, our chief focus and most proximally, Long COVID. Ischaemia may be initiated via fibrin amyloid microclot blockage of capillaries, for instance as exercise is started; reperfusion is a necessary corollary when it finishes. We rehearse the mechanistic evidence for these occurrences here, in terms of their manifestation as oxidative stress, hyperinflammation, mast cell activation, the production of marker metabolites and related activities. Such microclot-based phenomena can explain both the breathlessness/fatigue and the post-exertional malaise that may be observed in these conditions, as well as many other observables. The recognition of these processes implies, mechanistically, that therapeutic benefit is potentially to be had from antioxidants, from anti-inflammatories, from iron chelators, and via suitable, safe fibrinolytics, and/or anti-clotting agents. We review the considerable existing evidence that is consistent with this, and with the biochemical mechanisms involved.
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12
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Li Y, Chen M, Chang W. Roles of the nucleus in leukocyte migration. J Leukoc Biol 2022; 112:771-783. [PMID: 35916042 DOI: 10.1002/jlb.1mr0622-473rr] [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: 12/17/2021] [Revised: 06/20/2022] [Indexed: 11/09/2022] Open
Abstract
Leukocytes patrol our bodies in search of pathogens and migrate to sites of injury in response to various stimuli. Rapid and directed leukocyte motility is therefore crucial to our immunity. The nucleus is the largest and stiffest cellular organelle and a mechanical obstacle for migration through constrictions. However, the nucleus is also essential for 3D cell migration. Here, we review the roles of the nucleus in leukocyte migration, focusing on how cells deform their nuclei to aid cell motility and the contributions of the nucleus to cell migration. We discuss the regulation of the nuclear biomechanics by the nuclear lamina and how it, together with the cytoskeleton, modulates the shapes of leukocyte nuclei. We then summarize the functions of nesprins and SUN proteins in leukocytes and discuss how forces are exerted on the nucleus. Finally, we examine the mechanical roles of the nucleus in cell migration, including its roles in regulating the direction of migration and path selection.
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Affiliation(s)
- Yutao Li
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Mengqi Chen
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Wakam Chang
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
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13
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Identification of Hub Genes and Key Pathways Associated with Follicular Lymphoma. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:5369104. [PMID: 35965624 PMCID: PMC9357743 DOI: 10.1155/2022/5369104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/09/2022] [Accepted: 07/12/2022] [Indexed: 11/24/2022]
Abstract
Follicular lymphoma (FL) is the second most prevalent form of non-Hodgkin lymphoma (NHL) and accounts for almost 20% of all NHL cases. Although FL patients' overall survival rates have steadily increased, there is still no accepted standard of care for individuals who experience recurrence or resistance to treatment. Hence, it is needed to evaluate the precise molecular cascades underlying FL to develop efficient diagnostic and treatment approaches. Herein, we aimed to evaluate variations in gene expression profiles, explore the underlying mechanisms, and find new FL targets. In the present study, Gene Expression Omnibus (GEO) database was employed to evaluate microarray datasets including GSE32018 and GSE55267. R software was employed to evaluate differentially expressed genes (DEGs) between FL and noncancer samples. The DEGs were evaluated using GO, KEGG pathway enrichment analysis, and PPI network to evaluate hub genes, which were then, examined using gene function enrichment analysis. According to the obtained results, a total of 190 upregulated and 162 downregulated DEGs were evaluated. Following the generation of PPI networks, 15 hub genes in highly connected upregulated DEGs were selected including FN1, MMP9, CCL2, CD8A, POSTN, CCR5, COL3A1, CXCL12, VCAM1, COL1A2, CCL5, SPARC, TIMP1, CXCL9, and IL18. The GO enrichment evaluation of the underlined hub genes indicated that the immunological response was the most considerably enriched term. Twelve significant cascades were found using the KEGG pathway analysis, most of which were linked to cellular structure and immunity. Our findings suggested that FN1, SPARC, POSTN, MMP9, and VCAM1 genes are potential biomarkers of FL, and cellular immunity contributes to the pathogenesis of FL. Moreover, the unique DEGs and cascades found in the present study may present new perspectives on the molecular basis of FL's underlying mechanisms as well as a new understanding of FL's future precise management.
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14
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Mechanosensation by endothelial PIEZO1 is required for leukocyte diapedesis. Blood 2022; 140:171-183. [PMID: 35443048 DOI: 10.1182/blood.2021014614] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 03/27/2022] [Indexed: 11/20/2022] Open
Abstract
The extravasation of leukocytes is a critical step during inflammation which requires the localized opening of the endothelial barrier. This process is initiated by the close interaction of leukocytes with various adhesion molecules such as intercellular adhesion molecule-1 (ICAM-1) on the surface of endothelial cells. Here we reveal that mechanical forces generated by leukocyte-induced clustering of ICAM-1 synergistically with fluid shear stress exerted by the flowing blood increase endothelial plasma membrane tension to activate the mechanosensitive cation channel PIEZO1. This leads to increases in [Ca2+]i and activation of downstream signaling events including phosphorylation of SRC, PYK2 and myosin light chain resulting in opening of the endothelial barrier. Mice with endothelium-specific Piezo1 deficiency show decreased leukocyte extravasation in different inflammation models. Thus, leukocytes and the hemodynamic microenvironment synergize to mechanically activate endothelial PIEZO1 and subsequent downstream signaling to initiate leukocyte diapedesis.
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15
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Biomimetic approaches for targeting tumor inflammation. Semin Cancer Biol 2022; 86:555-567. [DOI: 10.1016/j.semcancer.2022.04.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/31/2022] [Accepted: 04/20/2022] [Indexed: 02/08/2023]
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16
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Meier-Menches SM, Neuditschko B, Janker L, Gerner MC, Schmetterer KG, Reichle A, Gerner C. A Proteomic Platform Enables to Test for AML Normalization In Vitro. Front Chem 2022; 10:826346. [PMID: 35178376 PMCID: PMC8844467 DOI: 10.3389/fchem.2022.826346] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/05/2022] [Indexed: 11/16/2022] Open
Abstract
Acute promyelocytic leukaemia (APL) can be cured by the co-administration of arsenic trioxide (ATO) and all-trans retinoic acid (ATRA). These small molecules relieve the differentiation blockade of the transformed promyelocytes and trigger their maturation into functional neutrophils, which are physiologically primed for apoptosis. This normalization therapy represents a compelling alternative to cytotoxic anticancer chemotherapy, but lacks an in vitro model system for testing the efficiency of novel combination treatments consisting of inducers of differentiation and metallopharmaceuticals. Here, using proteome profiling we present an experimental framework that enables characterising the differentiation– and metal-specific effects of the combination treatment in a panel of acute myeloid leukaemia (AML) cell lines (HL-60 and U937), including APL (NB4). Differentiation had a substantial impact on the proteome on the order of 10% of the identified proteins and featured classical markers and transcription factors of myeloid differentiation. Additionally, ATO provoked specific cytoprotective effects in the AML cell lines HL-60 and U937. In HL-60, these effects included an integrated stress response (ISR) in conjunction with redox defence, while proteasomal responses and a metabolic rewiring were observed in U937 cells. In contrast, the APL cell line NB4 did not display such adaptions indicating a lack of plasticity to cope with the metal-induced stress, which may explain the clinical success of this combination treatment. Based on the induction of these cytoprotective effects, we proposed a novel metal-based compound to be used for the combination treatment instead of ATO. The organoruthenium drug candidate plecstatin-1 was previously shown to induce reactive oxygen species and an ISR. Indeed, the plecstatin-1 combination was found to affect similar pathways compared to the ATO combination in HL-60 cells and did not lead to cytoprotective response signatures in NB4. Moreover, the monocytic cell line U937 showed a low plasticity to cope with the plecstatin-1 combination, which suggests that this combination might achieve therapeutic benefit beyond APL. We propose that the cytoprotective plasticity of cancer cells might serve as a general proxy to discover novel combination treatments in vitro.
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Affiliation(s)
- Samuel M. Meier-Menches
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Joint Metabolome Facility, University of Vienna and Medical University of Vienna, Vienna, Austria
- *Correspondence: Samuel M. Meier-Menches, ; Christopher Gerner,
| | - Benjamin Neuditschko
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Lukas Janker
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Joint Metabolome Facility, University of Vienna and Medical University of Vienna, Vienna, Austria
| | - Marlene C. Gerner
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
- Division of Biomedical Science, University of Applied Sciences FH Campus Wien, Vienna, Austria
| | - Klaus G. Schmetterer
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Albrecht Reichle
- Department of Internal Medicine III, Haematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Christopher Gerner
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Joint Metabolome Facility, University of Vienna and Medical University of Vienna, Vienna, Austria
- *Correspondence: Samuel M. Meier-Menches, ; Christopher Gerner,
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17
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Wang H, Yin J, Hong Y, Ren A, Wang H, Li M, Zhao Q, Jiang C, Liu L. SCG2 is a Prognostic Biomarker Associated With Immune Infiltration and Macrophage Polarization in Colorectal Cancer. Front Cell Dev Biol 2022; 9:795133. [PMID: 35047505 PMCID: PMC8763391 DOI: 10.3389/fcell.2021.795133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/01/2021] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is the second most lethal malignancy around the world. Limited efficacy of immunotherapy creates an urgent need for development of novel treatment targets. Secretogranin II (SCG2) is a member of the chromogranin family of acidic secretory proteins, has a role in tumor microenvironment (TME) of lung adenocarcinoma and bladder cancer. Besides, SCG2 is a stroma-related gene in CRC, its potential function in regulating tumor immune infiltration of CRC needs to be fully elucidated. In this study, we used western blot, real-time PCR, immunofluorescence and public databases to evaluate SCG2 expression levels and distribution. Survival analysis and functional enrichment analysis were performed. We examined TME and tumor infiltrating immune cells using ESTIMATE and CIBERSORT algorithm. The results showed that SCG2 expression was significantly decreased in CRC tumor tissues, and differentially distributed between tumor and adjacent normal tissues. SCG2 was an independent prognostic predictor in CRC. High expression of SCG2 correlated with poor survival and advanced clinical stage in CRC patients. SCG2 might regulate multiple tumor- and immune-related pathways in CRC, influence tumor immunity by regulating infiltration of immune cells and macrophage polarization in CRC.
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Affiliation(s)
- Hao Wang
- Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Jinwen Yin
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China.,Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yuntian Hong
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China.,Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Anli Ren
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China.,Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Haizhou Wang
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China.,Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Mengting Li
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China.,Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qiu Zhao
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China.,Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Congqing Jiang
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China.,Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lan Liu
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China.,Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
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18
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Tsai MC, Fleuriot L, Janel S, Gonzalez-Rodriguez D, Morel C, Mettouchi A, Debayle D, Dallongeville S, Olivo-Marin JC, Antonny B, Lafont F, Lemichez E, Barelli H. DHA-phospholipids control membrane fusion and transcellular tunnel dynamics. J Cell Sci 2021; 135:273659. [PMID: 34878112 DOI: 10.1242/jcs.259119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 11/27/2021] [Indexed: 11/20/2022] Open
Abstract
Metabolic studies and animal knockout models point to the critical role of polyunsaturated docosahexaenoic acid (22:6, DHA)-containing phospholipids (PLs) in physiology. Here, we investigated the impact of DHA-PLs on the dynamics of transendothelial cell macroapertures (TEMs) triggered by RhoA inhibition-associated cell spreading. Lipidomic analyses show that human umbilical vein endothelial cells (HUVECs) subjected to DHA-diet undergo a 6-fold enrichment in DHA-PLs at plasma membrane (PM) at the expense of monounsaturated OA-PLs. Consequently, DHA-PLs enrichment at the PM induces a reduction of cell thickness and shifts cellular membranes towards a permissive mode of membrane fusion for transcellular tunnel initiation. We provide evidence that a global homeostatic control of membrane tension and cell cortex rigidity minimizes overall changes of TEM area through a decrease of TEM size and lifetime. Conversely, low DHA-PL levels at the PM leads to the opening of unstable and wider TEMs. Together, this provides evidence that variations of DHA-PLs levels in membranes affect cell biomechanical properties.
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Affiliation(s)
- Meng-Chen Tsai
- Institut de Pharmacologie Moléculaire et Cellulaire, UMR 7275, CNRS and Université Côte d'Azur, 06560, Valbonne, France.,Institut Pasteur, Université de Paris, CNRS UMR2001, Unité des Toxines Bactériennes, 75015 Paris, France
| | - Lucile Fleuriot
- Institut de Pharmacologie Moléculaire et Cellulaire, UMR 7275, CNRS and Université Côte d'Azur, 06560, Valbonne, France
| | - Sébastien Janel
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France
| | | | - Camille Morel
- Institut Pasteur, Université de Paris, CNRS UMR2001, Unité des Toxines Bactériennes, 75015 Paris, France
| | - Amel Mettouchi
- Institut Pasteur, Université de Paris, CNRS UMR2001, Unité des Toxines Bactériennes, 75015 Paris, France
| | - Delphine Debayle
- Institut de Pharmacologie Moléculaire et Cellulaire, UMR 7275, CNRS and Université Côte d'Azur, 06560, Valbonne, France
| | | | | | - Bruno Antonny
- Institut de Pharmacologie Moléculaire et Cellulaire, UMR 7275, CNRS and Université Côte d'Azur, 06560, Valbonne, France
| | - Frank Lafont
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Emmanuel Lemichez
- Institut Pasteur, Université de Paris, CNRS UMR2001, Unité des Toxines Bactériennes, 75015 Paris, France
| | - Hélène Barelli
- Institut de Pharmacologie Moléculaire et Cellulaire, UMR 7275, CNRS and Université Côte d'Azur, 06560, Valbonne, France
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19
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Zhang Z, Wu H, Peng Q, Xie Z, Chen F, Ma Y, Zhang Y, Zhou Y, Yang J, Chen C, Li S, Zhang Y, Tian W, Wang Y, Xu Y, Luo H, Zhu M, Kuang YQ, Yu J, Wang K. Integration of Molecular Inflammatory Interactome Analyses Reveals Dynamics of Circulating Cytokines and Extracellular Vesicle Long Non-Coding RNAs and mRNAs in Heroin Addicts During Acute and Protracted Withdrawal. Front Immunol 2021; 12:730300. [PMID: 34489980 PMCID: PMC8416766 DOI: 10.3389/fimmu.2021.730300] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/04/2021] [Indexed: 01/01/2023] Open
Abstract
Heroin addiction and withdrawal influence multiple physiological functions, including immune responses, but the mechanism remains largely elusive. The objective of this study was to investigate the molecular inflammatory interactome, particularly the cytokines and transcriptome regulatory network in heroin addicts undergoing withdrawal, compared to healthy controls (HCs). Twenty-seven cytokines were simultaneously assessed in 41 heroin addicts, including 20 at the acute withdrawal (AW) stage and 21 at the protracted withdrawal (PW) stage, and 38 age- and gender-matched HCs. Disturbed T-helper(Th)1/Th2, Th1/Th17, and Th2/Th17 balances, characterized by reduced interleukin (IL)-2, elevated IL-4, IL-10, and IL-17A, but normal TNF-α, were present in the AW subjects. These imbalances were mostly restored to the baseline at the PW stage. However, the cytokines TNF-α, IL-2, IL-7, IL-10, and IL-17A remained dysregulated. This study also profiled exosomal long non-coding RNA (lncRNA) and mRNA in the plasma of heroin addicts, constructed co-expression gene regulation networks, and identified lncRNA-mRNA-pathway pairs specifically associated with alterations in cytokine profiles and Th1/Th2/Th17 imbalances. Altogether, a large amount of cytokine and exosomal lncRNA/mRNA expression profiling data relating to heroin withdrawal was obtained, providing a useful experimental and theoretical basis for further understanding of the pathogenic mechanisms of withdrawal symptoms in heroin addicts.
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Affiliation(s)
- Zunyue Zhang
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Hongjin Wu
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Qingyan Peng
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhenrong Xie
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Fengrong Chen
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yuru Ma
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yizhi Zhang
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yong Zhou
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jiqing Yang
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Cheng Chen
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Shaoyou Li
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yongjin Zhang
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Weiwei Tian
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yuan Wang
- Department of Research and Development, Echo Biotech Co., Ltd, Beijing, China
| | - Yu Xu
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Huayou Luo
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Mei Zhu
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yi-Qun Kuang
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Juehua Yu
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Kunhua Wang
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine (Kunming Medical University), The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Centre for Experimental Studies and Research, The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, China.,Yunnan University, Kunming, China
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20
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Sun L, Wang R, Hu G, Liu H, Lv K, Duan Y, Shen N, Wu J, Hu J, Liu Y, Jin Q, Zhang F, Xu X. Single cell RNA sequencing (scRNA-Seq) deciphering pathological alterations in streptozotocin-induced diabetic retinas. Exp Eye Res 2021; 210:108718. [PMID: 34364890 DOI: 10.1016/j.exer.2021.108718] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 08/01/2021] [Accepted: 08/04/2021] [Indexed: 11/28/2022]
Abstract
Diabetic retinopathy (DR) is an irreversible and progressive diabetic complication leading to visual impairment, even blindness. Due to the delicate and complicated structure of the retina, the pathology of DR has not been completely elucidated yet. We constructed a transcriptome atlas of >14,000 single cells from healthy and streptozotocin (STZ)-induced diabetic murine retinas to decipher pathological alterations of DR. We found four stress-inducible genes Cirbp, Rmb3, Mt1 and Mt2 commonly induced in most types of retinal cells. Bipolar cells were little affected on both number and gene expression. Diabetes increased expression of inflammatory factor genes in retinal microglia, and stimulated expression of immediate early genes (IEGs) in retinal astrocytes. A large number of genes were deregulated in diabetic vascular endothelial cells (ECs), and the differentially expressed genes were paired to the pathways functioning in metabolism, shear stress and vascular permeability. These pathways were mapped by more deregulated genes in a subpopulation of ECs specifically presented in diabetic retinas (diabetic retinal ECs, DRECs). Moreover, several inflammation pathways were activated in DRECs, and the most significant one is the IL-17 signaling pathway. According to the EC markers, DRECs were mainly capillary ECs, confirmed by immunofluorescent staining of S100a9, a target gene of the IL-17 signaling pathway. This study deciphered pathological alterations of DR, and provided clues for potential targets for DR therapy.
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Affiliation(s)
- Licheng Sun
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China
| | - Ruonan Wang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China
| | - Guangyi Hu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China
| | - Huazhen Liu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China
| | - Kangjia Lv
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China
| | - Yi Duan
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China
| | - Ning Shen
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China
| | - Jiali Wu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China
| | - Jing Hu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China
| | - Yujuan Liu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China
| | - Qihuang Jin
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China.
| | - Fang Zhang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China.
| | - Xun Xu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China; National Clinical Research Center for Eye Diseases, 200080, Shanghai, China; Shanghai Key Laboratory of Fundus Diseases, 200080, Shanghai, China; Shanghai Engineering Center for Visual Science and Photomedicine, 200080, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, 200080, Shanghai, China.
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21
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Arts JJG, Mahlandt EK, Grönloh MLB, Schimmel L, Noordstra I, Gordon E, van Steen ACI, Tol S, Walzog B, van Rijssel J, Nolte MA, Postma M, Khuon S, Heddleston JM, Wait E, Chew TL, Winter M, Montanez E, Goedhart J, van Buul JD. Endothelial junctional membrane protrusions serve as hotspots for neutrophil transmigration. eLife 2021; 10:66074. [PMID: 34431475 PMCID: PMC8437435 DOI: 10.7554/elife.66074] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 08/22/2021] [Indexed: 12/27/2022] Open
Abstract
Upon inflammation, leukocytes rapidly transmigrate across the endothelium to enter the inflamed tissue. Evidence accumulates that leukocytes use preferred exit sites, alhough it is not yet clear how these hotspots in the endothelium are defined and how they are recognized by the leukocyte. Using lattice light sheet microscopy, we discovered that leukocytes prefer endothelial membrane protrusions at cell junctions for transmigration. Phenotypically, these junctional membrane protrusions are present in an asymmetric manner, meaning that one endothelial cell shows the protrusion and the adjacent one does not. Consequently, leukocytes cross the junction by migrating underneath the protruding endothelial cell. These protrusions depend on Rac1 activity and by using a photo-activatable Rac1 probe, we could artificially generate local exit-sites for leukocytes. Overall, we have discovered a new mechanism that uses local induced junctional membrane protrusions to facilitate/steer the leukocyte escape/exit from inflamed vessel walls.
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Affiliation(s)
- Janine JG Arts
- Molecular Cell Biology Lab at Dept. Molecular Hematology, Sanquin Research and Landsteiner LaboratoryAmsterdamNetherlands
- Leeuwenhoek Centre for Advanced Microscopy (LCAM), section Molecular Cytology at Swammerdam Institute for Life Sciences (SILS) at University of AmsterdamAmsterdamNetherlands
| | - Eike K Mahlandt
- Leeuwenhoek Centre for Advanced Microscopy (LCAM), section Molecular Cytology at Swammerdam Institute for Life Sciences (SILS) at University of AmsterdamAmsterdamNetherlands
| | - Max LB Grönloh
- Molecular Cell Biology Lab at Dept. Molecular Hematology, Sanquin Research and Landsteiner LaboratoryAmsterdamNetherlands
- Leeuwenhoek Centre for Advanced Microscopy (LCAM), section Molecular Cytology at Swammerdam Institute for Life Sciences (SILS) at University of AmsterdamAmsterdamNetherlands
| | - Lilian Schimmel
- Molecular Cell Biology Lab at Dept. Molecular Hematology, Sanquin Research and Landsteiner LaboratoryAmsterdamNetherlands
- Leeuwenhoek Centre for Advanced Microscopy (LCAM), section Molecular Cytology at Swammerdam Institute for Life Sciences (SILS) at University of AmsterdamAmsterdamNetherlands
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of QueenslandBrisbaneQLDAustralia
| | - Ivar Noordstra
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of QueenslandBrisbaneQLDAustralia
| | - Emma Gordon
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of QueenslandBrisbaneQLDAustralia
| | - Abraham CI van Steen
- Molecular Cell Biology Lab at Dept. Molecular Hematology, Sanquin Research and Landsteiner LaboratoryAmsterdamNetherlands
| | - Simon Tol
- Molecular Cell Biology Lab at Dept. Molecular Hematology, Sanquin Research and Landsteiner LaboratoryAmsterdamNetherlands
| | - Barbara Walzog
- Department of Cardiovascular Physiology and Pathophysiology, Walter Brendel Center of Experimental Medicine, Biomedical Center, Ludwig-Maximilians-Universität MünchenPlanegg-MartinsriedGermany
| | - Jos van Rijssel
- Molecular Cell Biology Lab at Dept. Molecular Hematology, Sanquin Research and Landsteiner LaboratoryAmsterdamNetherlands
| | - Martijn A Nolte
- Molecular Cell Biology Lab at Dept. Molecular Hematology, Sanquin Research and Landsteiner LaboratoryAmsterdamNetherlands
| | - Marten Postma
- Leeuwenhoek Centre for Advanced Microscopy (LCAM), section Molecular Cytology at Swammerdam Institute for Life Sciences (SILS) at University of AmsterdamAmsterdamNetherlands
| | - Satya Khuon
- Advanced Imaging Center at Janelia Research Campus, Howard Hughes Medical InstituteAshburnUnited States
| | - John M Heddleston
- Advanced Imaging Center at Janelia Research Campus, Howard Hughes Medical InstituteAshburnUnited States
- Microscopy Facility at the Cleveland Clinic Florida Research and Innovation CenterPort St. LucieUnited States
| | - Eric Wait
- Advanced Imaging Center at Janelia Research Campus, Howard Hughes Medical InstituteAshburnUnited States
| | - Teng Leong Chew
- Advanced Imaging Center at Janelia Research Campus, Howard Hughes Medical InstituteAshburnUnited States
| | - Mark Winter
- Zuckerman Postdoctoral Fellow, Department of Marine Sciences, University of HaifaHaifaIsrael
| | - Eloi Montanez
- Department of Physiological Sciences, Faculty of Medicine and Health Sciences, University of BarcelonaBarcelonaSpain
| | - Joachim Goedhart
- Leeuwenhoek Centre for Advanced Microscopy (LCAM), section Molecular Cytology at Swammerdam Institute for Life Sciences (SILS) at University of AmsterdamAmsterdamNetherlands
| | - Jaap D van Buul
- Molecular Cell Biology Lab at Dept. Molecular Hematology, Sanquin Research and Landsteiner LaboratoryAmsterdamNetherlands
- Leeuwenhoek Centre for Advanced Microscopy (LCAM), section Molecular Cytology at Swammerdam Institute for Life Sciences (SILS) at University of AmsterdamAmsterdamNetherlands
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22
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Pan PJ, Liu JX. Diagnostic and prognostic value of secreted protein acidic and rich in cysteine in the diffuse large B-cell lymphoma. World J Clin Cases 2021; 9:6287-6299. [PMID: 34434995 PMCID: PMC8362571 DOI: 10.12998/wjcc.v9.i22.6287] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/29/2021] [Accepted: 06/03/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Secreted protein acidic and rich in cysteine (SPARC) is an extracellular matrix-associated protein. Studies have revealed that SPARC is involved in the cell interaction and function including proliferation, differentiation, and apoptosis. However, the role of SPARC in cancer is controversial, as it was reported as the promoter or suppressor in different cancers. Further, the role of SPARC in lymphoma is unclear.
AIM To identify the expression and significance of SPARC in lymphoma, especially in diffuse large B-cell lymphoma (DLBCL).
METHODS The expression analysis of SPARC in different cancers was evaluated with Oncomine. The Brune, Eckerle, Piccaluga, Basso, Compagno, Alizadeh, and Rosenwald datasets were included to evaluate the mRNA expression of SPARC in lymphoma. The Cancer Genome Atlas (TCGA)-DLBCL was used to analyze the diagnostic value of SPARC in DLBCL. The Compagno and Brune DLBCL datasets were used for validation. Then, the diagnostic value was evaluated with the receiver operating characteristic (ROC) curve. The Kaplan-Meier plot was conducted with TCGA-DLBCL, and the ROC analysis was performed based on the survival time. Further, the overall survival analysis based on the level of SPARC expression was performed with the GSE4475 and E-TABM-346. The Gene Set Enrichment Analyses (GSEA) was performed to make the underlying mechanism-regulatory networks.
RESULTS The pan-cancer analysis of SPARC showed that SPARC was highly expressed in the brain and central nervous system, breast, colon, esophagus, stomach, head and neck, pancreas, and sarcoma, especially in lymphoma. The overexpression of SPARC in lymphoma, especially DLBCL, was confirmed in several datasets. The ROC analysis revealed that SPARC was a valuable diagnostic biomarker. More importantly, compared with DLBCL patients with low SPARC expression, those with higher SPARC expression represented a higher overall survival rate. The ROC analysis showed that SPARC was a favorable prognostic biomarker for DLBCL. Results of the GSEA confirmed that the high expression of SPARC was closely associated with focal adhesion, extracellular matrix receptor interaction, and leukocyte transendothelial migration, which suggested that SPARC may be involved in the regulation of epithelial-mesenchymal transition, KRAS, and myogenesis in DLBCL.
CONCLUSION SPARC was highly expressed in DLBCL, and the overexpression of SPARC showed sound diagnostic value. More interestingly, the overexpression of SPARC might be a favorable prognostic biomarker for DLBCL, suggesting that SPARC might be an inducible factor in the development of DLBCL, and inducible SPARC was negative in some oncogenic pathways. All the evidence suggested that inducible SPARC might be a good diagnostic and prognostic biomarker for DLBCL.
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Affiliation(s)
- Peng-Ji Pan
- Department of Hematology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China
| | - Jun-Xia Liu
- Department of Oncology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China
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23
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Alonso FH, Christopher MM, Paes PRO. The predominance and diagnostic value of neutrophils in differentiating transudates and exudates in dogs. Vet Clin Pathol 2021; 50:384-393. [PMID: 34337780 DOI: 10.1111/vcp.12987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 11/13/2020] [Accepted: 12/15/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND There is disagreement in the literature about the proportion of neutrophils expected in canine transudates. A cutoff of <30% neutrophils has been recommended for distinguishing transudates from exudates, but its validity has not been established. OBJECTIVE The aim of this study was to evaluate differential cell counts in canine effusions and analyze the percentage and number of neutrophils in transudates and exudates. METHODS Effusion data were obtained retrospectively from 263 dogs with pleural or peritoneal effusion. Low-protein transudates, high-protein transudates, and exudates were classified using the total protein (TP) concentration and total nucleated cell count (TNCC). Differential percentages and absolute neutrophil counts were compared by the effusion type and underlying etiology. RESULTS Low-protein transudates (n = 63), high-protein transudates (n = 84), and exudates (n = 77) had a median (range) of 35% (0%-100%), 59% (0%-100%), and 90% (50%-98%) neutrophils (P < .0001). All effusions with <50% neutrophils were transudates, but 53% of transudates had ≥50% neutrophils, and 69% had ≥30%. Median neutrophil counts were 62/µL (0-892/µL), 538/µL (0-4550/µL), and 45 590/µL (5400-496 800/µL) in low-protein transudates, high-protein transudates, and exudates, respectively (P < .0001). Neutrophil counts correlated with TNCC (r2 = 0.99), such that using neutrophil cutoffs did not affect effusion classifications in most cases. Neutrophil percentages and counts were higher in effusions from dogs with uroabdomen and sepsis (P < .01); neutrophil counts were lower in dogs with hepatic insufficiency (P < .0001). Uroabdomen usually caused low-protein, high-neutrophil exudates. CONCLUSIONS Although effusions with <50% neutrophils are transudates, most transudates and exudates have ≥50% neutrophils, limiting the diagnostic usefulness of % neutrophils for classifying effusions. Absolute neutrophil cutoffs did not notably improve effusion classification but could warrant future studies.
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Affiliation(s)
- Flavio H Alonso
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Veterinary Medical Teaching Hospital and Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
| | - Mary M Christopher
- Veterinary Medical Teaching Hospital and Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
| | - Paulo R O Paes
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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24
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de Haan L, Suijker J, van Roey R, Berges N, Petrova E, Queiroz K, Strijker W, Olivier T, Poeschke O, Garg S, van den Broek LJ. A Microfluidic 3D Endothelium-on-a-Chip Model to Study Transendothelial Migration of T Cells in Health and Disease. Int J Mol Sci 2021; 22:8234. [PMID: 34361000 PMCID: PMC8347346 DOI: 10.3390/ijms22158234] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 01/01/2023] Open
Abstract
The recruitment of T cells is a crucial component in the inflammatory cascade of the body. The process involves the transport of T cells through the vascular system and their stable arrest to vessel walls at the site of inflammation, followed by extravasation and subsequent infiltration into tissue. Here, we describe an assay to study 3D T cell dynamics under flow in real time using a high-throughput, artificial membrane-free microfluidic platform that allows unimpeded extravasation of T cells. We show that primary human T cells adhere to endothelial vessel walls upon perfusion of microvessels and can be stimulated to undergo transendothelial migration (TEM) by TNFα-mediated vascular inflammation and the presence of CXCL12 gradients or ECM-embedded melanoma cells. Notably, migratory behavior was found to differ depending on T cell activation states. The assay is unique in its comprehensiveness for modelling T cell trafficking, arrest, extravasation and migration, all in one system, combined with its throughput, quality of imaging and ease of use. We envision routine use of this assay to study immunological processes and expect it to spur research in the fields of immunological disorders, immuno-oncology and the development of novel immunotherapeutics.
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Affiliation(s)
- Luuk de Haan
- Mimetas BV, de Limes 7, 2342 DH Oegstgeest, The Netherlands; (L.d.H.); (J.S.); (R.v.R.); (K.Q.); (W.S.); (T.O.)
| | - Johnny Suijker
- Mimetas BV, de Limes 7, 2342 DH Oegstgeest, The Netherlands; (L.d.H.); (J.S.); (R.v.R.); (K.Q.); (W.S.); (T.O.)
| | - Ruthger van Roey
- Mimetas BV, de Limes 7, 2342 DH Oegstgeest, The Netherlands; (L.d.H.); (J.S.); (R.v.R.); (K.Q.); (W.S.); (T.O.)
| | - Nina Berges
- Merck Healthcare KGaA, Frankfurter Str. 250, 64293 Darmstadt, Germany; (N.B.); (E.P.); (O.P.); (S.G.)
| | - Elissaveta Petrova
- Merck Healthcare KGaA, Frankfurter Str. 250, 64293 Darmstadt, Germany; (N.B.); (E.P.); (O.P.); (S.G.)
| | - Karla Queiroz
- Mimetas BV, de Limes 7, 2342 DH Oegstgeest, The Netherlands; (L.d.H.); (J.S.); (R.v.R.); (K.Q.); (W.S.); (T.O.)
| | - Wouter Strijker
- Mimetas BV, de Limes 7, 2342 DH Oegstgeest, The Netherlands; (L.d.H.); (J.S.); (R.v.R.); (K.Q.); (W.S.); (T.O.)
| | - Thomas Olivier
- Mimetas BV, de Limes 7, 2342 DH Oegstgeest, The Netherlands; (L.d.H.); (J.S.); (R.v.R.); (K.Q.); (W.S.); (T.O.)
| | - Oliver Poeschke
- Merck Healthcare KGaA, Frankfurter Str. 250, 64293 Darmstadt, Germany; (N.B.); (E.P.); (O.P.); (S.G.)
| | - Sakshi Garg
- Merck Healthcare KGaA, Frankfurter Str. 250, 64293 Darmstadt, Germany; (N.B.); (E.P.); (O.P.); (S.G.)
| | - Lenie J. van den Broek
- Mimetas BV, de Limes 7, 2342 DH Oegstgeest, The Netherlands; (L.d.H.); (J.S.); (R.v.R.); (K.Q.); (W.S.); (T.O.)
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25
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Kang YY, Li JJ, Sun JX, Wei JX, Ding C, Shi CL, Wu G, Li K, Ma YF, Sun Y, Qiao H. Genome-wide scanning for CHD1L gene in papillary thyroid carcinoma complicated with type 2 diabetes mellitus. Clin Transl Oncol 2021; 23:2536-2547. [PMID: 34245428 DOI: 10.1007/s12094-021-02656-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 05/28/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE Papillary thyroid carcinoma (PTC) represents the most common subtype of thyroid cancer (TC). This study was set out to explore the potential effect of CHD1L on PTC and type 2 diabetes mellitus (T2DM). METHODS We searched for T2DM susceptibility genes through the GWAS database and obtained T2DM-related differentially expressed gene from the GEO database. The expression and clinical data of TC and normal samples were collated from the TCGA database. Receiver operating characteristic (ROC) curve analysis was subsequently applied to assess the sensitivity and specificity of the CHD1L for the diagnosis of PTC. The MCP-counter package in R language was then utilized to generate immune cell score to evaluate the relationship between CHD1L expression and immune cells. Then, we performed functional enrichment analysis of co-expressed genes and DEGs to determine significantly enriched GO terms and KEGG to predict the potential functions of CHD1L in PTC samples and T2DM adipose tissue. RESULTS From two genes (ABCB9, CHD1L) were identified to be DEGs (p < 1 * 10-5) that exerted effects on survival (HR > 1, p < 0.05) in PTC and served as T2DM susceptibility genes. The gene expression matrix-based scoring of immunocytes suggested that PTC samples with high and low CHD1L expression presented with significant differences in the tumor microenvironment (TME). The enrichment analysis of CHD1L co-expressed genes and DEGs suggested that CHD1L was involved in multiple pathways to regulate the development of PTC. Among them, Kaposi sarcoma-associated herpesvirus infection, salmonella infection and TNF signaling pathways were highlighted as the three most relevant pathways. GSEA analysis, employed to analyze the genome dataset of PTC samples and T2DM adipose tissue presenting with high and low expression groups of CHD1L, suggests that these differential genes are related to chemokine signaling pathway, leukocyte transendothelial migration and TCELL receptor signaling pathway. CONCLUSION CHD1L may potentially serve as an early diagnostic biomarker for PTC, and a target of immunotherapy for PTC and T2DM.
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Affiliation(s)
- Y Y Kang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Harbin Medical University, No. 246, Xuefu Road, Nangang District, Harbin, 150081, Heilongjiang, People's Republic of China.,Department of Endocrinology and Metabolism, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, People's Republic of China
| | - J J Li
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Harbin Medical University, No. 246, Xuefu Road, Nangang District, Harbin, 150081, Heilongjiang, People's Republic of China
| | - J X Sun
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Harbin Medical University, No. 246, Xuefu Road, Nangang District, Harbin, 150081, Heilongjiang, People's Republic of China
| | - J X Wei
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Harbin Medical University, No. 246, Xuefu Road, Nangang District, Harbin, 150081, Heilongjiang, People's Republic of China
| | - C Ding
- Departments of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, People's Republic of China
| | - C L Shi
- Departments of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, People's Republic of China
| | - G Wu
- Departments of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, People's Republic of China
| | - K Li
- Departments of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, People's Republic of China
| | - Y F Ma
- Departments of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, People's Republic of China
| | - Y Sun
- Departments of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, People's Republic of China
| | - H Qiao
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Harbin Medical University, No. 246, Xuefu Road, Nangang District, Harbin, 150081, Heilongjiang, People's Republic of China.
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26
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Ross EC, Ten Hoeve AL, Barragan A. Integrin-dependent migratory switches regulate the translocation of Toxoplasma-infected dendritic cells across brain endothelial monolayers. Cell Mol Life Sci 2021; 78:5197-5212. [PMID: 34023934 PMCID: PMC8254729 DOI: 10.1007/s00018-021-03858-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/23/2021] [Accepted: 05/15/2021] [Indexed: 12/31/2022]
Abstract
Multiple cellular processes, such as immune responses and cancer cell metastasis, crucially depend on interconvertible migration modes. However, knowledge is scarce on how infectious agents impact the processes of cell adhesion and migration at restrictive biological barriers. In extracellular matrix, dendritic cells (DCs) infected by the obligate intracellular protozoan Toxoplasma gondii undergo mesenchymal-to-amoeboid transition (MAT) for rapid integrin-independent migration. Here, in a cellular model of the blood–brain barrier, we report that parasitised DCs adhere to polarised endothelium and shift to integrin-dependent motility, accompanied by elevated transendothelial migration (TEM). Upon contact with endothelium, parasitised DCs dramatically reduced velocities and adhered under both static and shear stress conditions, thereby obliterating the infection-induced amoeboid motility displayed in collagen matrix. The motility of adherent parasitised DCs on endothelial monolayers was restored by blockade of β1 and β2 integrins or ICAM-1, which conversely reduced motility on collagen-coated surfaces. Moreover, parasitised DCs exhibited enhanced translocation across highly polarised primary murine brain endothelial cell monolayers. Blockade of β1, β2 integrins, ICAM-1 and PECAM-1 reduced TEM frequencies. Finally, gene silencing of the pan-integrin-cytoskeleton linker talin (Tln1) or of β1 integrin (Itgb1) in primary DCs resulted in increased motility on endothelium and decreased TEM. Adding to the paradigms of leukocyte diapedesis, the findings provide novel insights in how an intracellular pathogen impacts the migratory plasticity of leukocytes in response to the cellular environment, to promote infection-related dissemination.
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Affiliation(s)
- Emily C Ross
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Arne L Ten Hoeve
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Antonio Barragan
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden.
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27
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Li X, Liu X, Horvatovich P, Hu Y, Zhang J. Proteomics Landscape of Host-Pathogen Interaction in Acinetobacter baumannii Infected Mouse Lung. Front Genet 2021; 12:563516. [PMID: 34025711 PMCID: PMC8138179 DOI: 10.3389/fgene.2021.563516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 04/14/2021] [Indexed: 12/15/2022] Open
Abstract
Acinetobacter baumannii is an important pathogen of nosocomial infection worldwide, which can primarily cause pneumonia, bloodstream infection, and urinary tract infection. The increasing drug resistance rate of A. baumannii and the slow development of new antibacterial drugs brought great challenges for clinical treatment. Host immunity is crucial to the defense of A. baumannii infection, and understanding the mechanisms of immune response can facilitate the development of new therapeutic strategies. To characterize the system-level changes of host proteome in immune response, we used tandem mass tag (TMT) labeling quantitative proteomics to compare the proteome changes of lungs from A. baumannii infected mice with control mice 6 h after infection. A total of 6,218 proteins were identified in which 6,172 could be quantified. With threshold p < 0.05 and relative expression fold change > 1.2 or < 0.83, we found 120 differentially expressed proteins. Bioinformatics analysis showed that differentially expressed proteins after infection were associated with receptor recognition, NADPH oxidase (NOX) activation and antimicrobial peptides. These differentially expressed proteins were involved in the pathways including leukocyte transendothelial migration, phagocyte, neutrophil degranulation, and antimicrobial peptides. In conclusion, our study showed proteome changes in mouse lung tissue due to A. baumannii infection and suggested the important roles of NOX, neutrophils, and antimicrobial peptides in host response. Our results provide a potential list of protein candidates for the further study of host-bacteria interaction in A. baumannii infection. Data are available via ProteomeXchange with identifier PXD020640.
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Affiliation(s)
- Xin Li
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, Shanghai, China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaofen Liu
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, Shanghai, China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Peter Horvatovich
- Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands
| | - Yingwei Hu
- Department of Pathology, Johns Hopkins University, Baltimore, MD, United States
| | - Jing Zhang
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Clinical Pharmacology of Antibiotics, National Health and Family Planning Commission, Shanghai, China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
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28
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Tan X, Petri B, DeVinney R, Jenne CN, Chaconas G. The Lyme disease spirochete can hijack the host immune system for extravasation from the microvasculature. Mol Microbiol 2021; 116:498-515. [PMID: 33891779 DOI: 10.1111/mmi.14728] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/13/2021] [Accepted: 04/14/2021] [Indexed: 11/30/2022]
Abstract
Lyme disease is the most common tick-transmitted disease in the northern hemisphere and is caused by the spirochete Borrelia burgdorferi and related Borrelia species. The constellation of symptoms attributable to this malady results from vascular dissemination of B. burgdorferi throughout the body to invade various tissue types. However, little is known about the mechanism by which the spirochetes can breach the blood vessel wall to reach distant tissues. We have studied this process by direct observation of spirochetes in the microvasculature of living mice using multi-laser spinning-disk intravital microscopy. Our results show that in our experimental system, instead of phagocytizing B. burgdorferi, host neutrophils are involved in the production of specific cytokines that activate the endothelium and potentiate B. burgdorferi escape into the surrounding tissue. Spirochete escape is not induced by paracellular permeability and appears to occur via a transcellular pathway. Neutrophil repurposing to promote bacterial extravasation represents a new and innovative pathogenic strategy.
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Affiliation(s)
- Xi Tan
- Department of Biochemistry & Molecular Biology, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
| | - Björn Petri
- Department of Microbiology, Immunology & Infectious Diseases, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
| | - Rebekah DeVinney
- Department of Microbiology, Immunology & Infectious Diseases, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
| | - Craig N Jenne
- Department of Microbiology, Immunology & Infectious Diseases, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
| | - George Chaconas
- Department of Biochemistry & Molecular Biology, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada.,Department of Microbiology, Immunology & Infectious Diseases, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
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29
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Zhao Y, Ting KK, Coleman P, Qi Y, Chen J, Vadas M, Gamble J. The Tumour Vasculature as a Target to Modulate Leucocyte Trafficking. Cancers (Basel) 2021; 13:cancers13071724. [PMID: 33917287 PMCID: PMC8038724 DOI: 10.3390/cancers13071724] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/29/2021] [Accepted: 04/03/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Tumour blood vessels, characterised by abnormal morphology and function, create an immunosuppressive tumour microenvironment via restricting the appropriate leucocyte subsets trafficking. Strategies to trigger phenotypic alteration in tumour vascular system to resemble normal vascular system, named vascular normalisation, promote effective trafficking of leucocytes into tumours through enhancing the interactions between leucocytes and endothelial cells. This review specifically demonstrates how targeting tumour blood vessels modulates the critical steps of leucocyte trafficking. Furthermore, selective regulation of leucocyte subsets trafficking in tumours can be achieved by vasculature-targeting strategies, contributing to improved immunotherapy and thereby delayed tumour progression. Abstract The effectiveness of immunotherapy against solid tumours is dependent on the appropriate leucocyte subsets trafficking and accumulating in the tumour microenvironment (TME) with recruitment occurring at the endothelium. Such recruitment involves interactions between the leucocytes and the endothelial cells (ECs) of the vessel and occurs through a series of steps including leucocyte capture, their rolling, adhesion, and intraluminal crawling, and finally leucocyte transendothelial migration across the endothelium. The tumour vasculature can curb the trafficking of leucocytes through influencing each step of the leucocyte recruitment process, ultimately producing an immunoresistant microenvironment. Modulation of the tumour vasculature by strategies such as vascular normalisation have proven to be efficient in facilitating leucocyte trafficking into tumours and enhancing immunotherapy. In this review, we discuss the underlying mechanisms of abnormal tumour vasculature and its impact on leucocyte trafficking, and potential strategies for overcoming the tumour vascular abnormalities to boost immunotherapy via increasing leucocyte recruitment.
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Affiliation(s)
- Yang Zhao
- Department of Biochemistry and Molecular Biology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Correspondence: (Y.Z.); (J.G.); Tel.: +86-025-85811237 (Y.Z.); +61-02-95656225 (J.G.)
| | - Ka Ka Ting
- Vascular Biology Program, Centenary Institute, The University of Sydney, Sydney 2050, Australia; (K.K.T.); (P.C.); (Y.Q.); (M.V.)
| | - Paul Coleman
- Vascular Biology Program, Centenary Institute, The University of Sydney, Sydney 2050, Australia; (K.K.T.); (P.C.); (Y.Q.); (M.V.)
| | - Yanfei Qi
- Vascular Biology Program, Centenary Institute, The University of Sydney, Sydney 2050, Australia; (K.K.T.); (P.C.); (Y.Q.); (M.V.)
| | - Jinbiao Chen
- Liver Injury and Cancer Program, Centenary Institute, The University of Sydney, Sydney 2050, Australia;
| | - Mathew Vadas
- Vascular Biology Program, Centenary Institute, The University of Sydney, Sydney 2050, Australia; (K.K.T.); (P.C.); (Y.Q.); (M.V.)
| | - Jennifer Gamble
- Vascular Biology Program, Centenary Institute, The University of Sydney, Sydney 2050, Australia; (K.K.T.); (P.C.); (Y.Q.); (M.V.)
- Correspondence: (Y.Z.); (J.G.); Tel.: +86-025-85811237 (Y.Z.); +61-02-95656225 (J.G.)
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Morsing SKH, Rademakers T, Brouns SLN, van Stalborch AMD, Donners MMPC, van Buul JD. ADAM10-Mediated Cleavage of ICAM-1 Is Involved in Neutrophil Transendothelial Migration. Cells 2021; 10:cells10020232. [PMID: 33504031 PMCID: PMC7911467 DOI: 10.3390/cells10020232] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 01/12/2021] [Accepted: 01/19/2021] [Indexed: 01/24/2023] Open
Abstract
To efficiently cross the endothelial barrier during inflammation, neutrophils first firmly adhere to the endothelial surface using the endothelial adhesion molecule ICAM-1. Upon actual transmigration, the release from ICAM-1 is required. While Integrin LFA1/Mac1 de-activation is one described mechanism that leads to this, direct cleavage of ICAM-1 from the endothelium represents a second option. We found that a disintegrin and metalloprotease 10 (ADAM10) cleaves the extracellular domain of ICAM-1 from the endothelial surface. Silencing or inhibiting endothelial ADAM10 impaired the efficiency of neutrophils to cross the endothelium, suggesting that neutrophils use endothelial ADAM10 to dissociate from ICAM-1. Indeed, when measuring transmigration kinetics, neutrophils took almost twice as much time to finish the diapedesis step when ADAM10 was silenced. Importantly, we found increased levels of ICAM-1 on the transmigrating neutrophils when crossing an endothelial monolayer where such increased levels were not detected when neutrophils crossed bare filters. Using ICAM-1-GFP-expressing endothelial cells, we show that ICAM-1 presence on the neutrophils can also occur by membrane transfer from the endothelium to the neutrophil. Based on these findings, we conclude that endothelial ADAM10 contributes in part to neutrophil transendothelial migration by cleaving ICAM-1, thereby supporting the release of neutrophils from the endothelium during the final diapedesis step.
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Affiliation(s)
- Sofia K. H. Morsing
- Molecular Cell Biology Lab, Department Molecular and Cellular Homeostasis, Sanquin Research and Landsteiner Laboratory, University of Amsterdam, Plesmanlaan 125, 1066 CX Amsterdam, The Netherlands; (S.K.H.M.); (T.R.); (S.L.N.B.); (A.-M.D.v.S.)
| | - Timo Rademakers
- Molecular Cell Biology Lab, Department Molecular and Cellular Homeostasis, Sanquin Research and Landsteiner Laboratory, University of Amsterdam, Plesmanlaan 125, 1066 CX Amsterdam, The Netherlands; (S.K.H.M.); (T.R.); (S.L.N.B.); (A.-M.D.v.S.)
| | - Sanne L. N. Brouns
- Molecular Cell Biology Lab, Department Molecular and Cellular Homeostasis, Sanquin Research and Landsteiner Laboratory, University of Amsterdam, Plesmanlaan 125, 1066 CX Amsterdam, The Netherlands; (S.K.H.M.); (T.R.); (S.L.N.B.); (A.-M.D.v.S.)
| | - Anne-Marieke D. van Stalborch
- Molecular Cell Biology Lab, Department Molecular and Cellular Homeostasis, Sanquin Research and Landsteiner Laboratory, University of Amsterdam, Plesmanlaan 125, 1066 CX Amsterdam, The Netherlands; (S.K.H.M.); (T.R.); (S.L.N.B.); (A.-M.D.v.S.)
| | - Marjo M. P. C. Donners
- Department of Pathology, Cardiovascular Research Institute Maastricht, Maastricht University, P. Debyelaan 25, 6229 HX Maastricht, The Netherlands
- Correspondence: (M.M.P.C.D.); (J.D.v.B.); Tel.: +31-43-3877167 (M.M.P.C.D.); +31-20-5121219 (J.D.v.B.); Fax: +31-20-5123310 (J.D.v.B.)
| | - Jaap D. van Buul
- Molecular Cell Biology Lab, Department Molecular and Cellular Homeostasis, Sanquin Research and Landsteiner Laboratory, University of Amsterdam, Plesmanlaan 125, 1066 CX Amsterdam, The Netherlands; (S.K.H.M.); (T.R.); (S.L.N.B.); (A.-M.D.v.S.)
- Leeuwenhoek Centre for Advanced Microscopy (LCAM), Section Molecular Cytology at Swammerdam Institute for Life Sciences (SILS), University of Amsterdam, 1066 CX Amsterdam, The Netherlands
- Correspondence: (M.M.P.C.D.); (J.D.v.B.); Tel.: +31-43-3877167 (M.M.P.C.D.); +31-20-5121219 (J.D.v.B.); Fax: +31-20-5123310 (J.D.v.B.)
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Duru G, van Egmond M, Heemskerk N. A Window of Opportunity: Targeting Cancer Endothelium to Enhance Immunotherapy. Front Immunol 2020; 11:584723. [PMID: 33262763 PMCID: PMC7686513 DOI: 10.3389/fimmu.2020.584723] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/19/2020] [Indexed: 12/19/2022] Open
Abstract
Vascular abnormalities in tumors have a major impact on the immune microenvironment in tumors. The consequences of abnormal vasculature include increased hypoxia, acidosis, high intra-tumoral fluid pressure, and angiogenesis. This introduces an immunosuppressive microenvironment that alters immune cell maturation, activation, and trafficking, which supports tumor immune evasion and dissemination of tumor cells. Increasing data suggests that cancer endothelium is a major barrier for traveling leukocytes, ranging from a partial blockade resulting in a selective endothelial barrier, to a complete immune infiltration blockade associated with immune exclusion and immune desert cancer phenotypes. Failed immune cell trafficking as well as immunosuppression within the tumor microenvironment limits the efficacy of immunotherapeutic approaches. As such, targeting proteins with key roles in angiogenesis may potentially reduce immunosuppression and might restore infiltration of anti-tumor immune cells, creating a therapeutic window for successful immunotherapy. In this review, we provide a comprehensive overview of established as well as more controversial endothelial pathways that govern selective immune cell trafficking across cancer endothelium. Additionally, we discuss recent insights and strategies that target tumor vasculature in order to increase infiltration of cytotoxic immune cells during the therapeutic window of vascular normalization hereby improving the efficacy of immunotherapy.
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Affiliation(s)
- Gizem Duru
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection & Immunity, Amsterdam, Netherlands
| | - Marjolein van Egmond
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection & Immunity, Amsterdam, Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Surgery, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Niels Heemskerk
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection & Immunity, Amsterdam, Netherlands
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Novel Intrinsic Mechanisms of Active Drug Extrusion at the Blood-Brain Barrier: Potential Targets for Enhancing Drug Delivery to the Brain? Pharmaceutics 2020; 12:pharmaceutics12100966. [PMID: 33066604 PMCID: PMC7602420 DOI: 10.3390/pharmaceutics12100966] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 12/13/2022] Open
Abstract
The blood-brain barrier (BBB) limits the pharmacotherapy of several brain disorders. In addition to the structural and metabolic characteristics of the BBB, the ATP-driven, drug efflux transporter P-glycoprotein (Pgp) is a selective gatekeeper of the BBB; thus, it is a primary hindrance to drug delivery into the brain. Here, we review the complex regulation of Pgp expression and functional activity at the BBB with an emphasis on recent studies from our laboratory. In addition to traditional processes such as transcriptional regulation and posttranscriptional or posttranslational modification of Pgp expression and functionality, novel mechanisms such as intra- and intercellular Pgp trafficking and intracellular Pgp-mediated lysosomal sequestration in BBB endothelial cells with subsequent disposal by blood neutrophils are discussed. These intrinsic mechanisms of active drug extrusion at the BBB are potential therapeutic targets that could be used to modulate P-glycoprotein activity in the treatment of brain diseases and enhance drug delivery to the brain.
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Kamel M, Pavulraj S, Fauler B, Mielke T, Azab W. Equid Herpesvirus-1 Exploits the Extracellular Matrix of Mononuclear Cells to Ensure Transport to Target Cells. iScience 2020; 23:101615. [PMID: 33015592 PMCID: PMC7521387 DOI: 10.1016/j.isci.2020.101615] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 08/27/2020] [Accepted: 09/23/2020] [Indexed: 12/21/2022] Open
Abstract
Mononuclear cells are the first line of defense against microbial infection. Yet, several viruses have evolved different mechanisms to overcome host defenses to ensure their spread. Here, we show unique mechanisms of how equid herpesvirus-1 manipulates peripheral blood mononuclear cells (PBMC) to travel further in the body. (1) "PBMC-hitching": at the initial contact, herpesviruses lurk in the extracellular matrix (ECM) of PBMC without entering the cells. The virus exploits the components of the ECM to bind, transport, and then egress to infect other cells. (2) "Intracellular delivery": transendothelial migration is a physiological mechanism where mononuclear cells can transmigrate through the endothelial cells. The virus was intangible and probably did not interfere with such a mechanism where the infected PBMC can probably deliver the virus inside the endothelium. (3) "Classical-fusion": this process is well mastered by herpesviruses due to a set of envelope glycoproteins that facilitate cell-cell fusion and virus spread.
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Affiliation(s)
- Mohamed Kamel
- Institut für Virologie, Robert von Ostertag-Haus, Zentrum für Infektionsmedizin, Freie Universität Berlin, Robert-von-Ostertag-Str. 7-13, 14163 Berlin, Germany.,Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, 12211 Cairo, Egypt
| | - Selvaraj Pavulraj
- Institut für Virologie, Robert von Ostertag-Haus, Zentrum für Infektionsmedizin, Freie Universität Berlin, Robert-von-Ostertag-Str. 7-13, 14163 Berlin, Germany
| | - Beatrix Fauler
- Max-Planck-Institut für Molekulare Genetik, Mikroskopie und Kryo-Elektronenmikroskopie Servicegruppe, Ihnestr. 63-73, 14195 Berlin, Germany
| | - Thorsten Mielke
- Max-Planck-Institut für Molekulare Genetik, Mikroskopie und Kryo-Elektronenmikroskopie Servicegruppe, Ihnestr. 63-73, 14195 Berlin, Germany
| | - Walid Azab
- Institut für Virologie, Robert von Ostertag-Haus, Zentrum für Infektionsmedizin, Freie Universität Berlin, Robert-von-Ostertag-Str. 7-13, 14163 Berlin, Germany
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Wu F, Chen X, Zhai L, Wang H, Sun M, Song C, Wang T, Qian Z. CXCR2 antagonist attenuates neutrophil transmigration into brain in a murine model of LPS induced neuroinflammation. Biochem Biophys Res Commun 2020; 529:839-845. [PMID: 32616311 DOI: 10.1016/j.bbrc.2020.05.124] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 05/17/2020] [Indexed: 10/24/2022]
Abstract
Sepsis-associated encephalopathy (SAE) is a devastating neurological complication of sepsis with intolerable high motility. SAE is accompanied with brain vascular injury, endothelial hyperpermeability, and neutrophil infiltration into the brain tissue, key inflammatory processes leading to further brain edema and neuronal cell apoptosis. Recent studies from us and others suggest that the chemokine receptor C-X-C Motif Chemokine Receptor 2 (CXCR2) is crucial for neutrophil recruitment during SAE. Here we use CXCR2 antagonist SB225002 to characterize the role of CXCR2 in brain infiltration of neutrophil in a murine model of SAE. Systemic administration of high-dose LPS (10 mg/kg) induced evident neutrophil infiltration into the cerebral cortex in wild-type mice. However, CXCR2 antagonist SB225002 markedly attenuated neutrophil infiltration into brain. The CXCR2 expression on neutrophils in the peripheral circulation was dramatically downregulated in response to this LPS dose, and endothelial CXCR2 was significantly upregulated, suggesting endothelial but not neutrophil CXCR2 plays a more important role in neutrophil infiltration into brain. Strikingly, although these CXCR2 antagonist SB225002 treated mice displayed reduced neutrophil infiltration, no change in neutrophil rolling and adhesion was observed. Furthermore, we confirmed that CXCR2 agonist CXCL1 induced a marked increase in actin stress fiber synthesis and paracellular gap formation in cultured cerebral endothelial cells, which is attenuated by SB225002. Thus, these results demonstrate a selective role for endothelial CXCR2 to regulate cerebral vascular permeability and neutrophil transmigration in high-dose LPS induced neuroinflammation, and also suggest a therapeutic potential of CXCR2 antagonist SB225002 in SAE.
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Affiliation(s)
- Fengjiao Wu
- Department of Immunology, School of Laboratory Medicine, Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical College, Bengbu, Anhui, 233030, China
| | - Xiaofen Chen
- Department of Immunology, School of Laboratory Medicine, Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical College, Bengbu, Anhui, 233030, China
| | - Liqian Zhai
- Department of Histology and Embryology, Bengbu Medical College, Bengbu, Anhui, 233030, China
| | - Hongtao Wang
- Department of Immunology, School of Laboratory Medicine, Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical College, Bengbu, Anhui, 233030, China
| | - Meiqun Sun
- Department of Histology and Embryology, Bengbu Medical College, Bengbu, Anhui, 233030, China
| | - Chuanwang Song
- Department of Immunology, School of Laboratory Medicine, Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical College, Bengbu, Anhui, 233030, China
| | - Ting Wang
- Department of Internal Medicine, University of Arizona, Phoenix, AZ, 85004, USA.
| | - Zhongqing Qian
- Department of Immunology, School of Laboratory Medicine, Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical College, Bengbu, Anhui, 233030, China.
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Mondadori C, Crippa M, Moretti M, Candrian C, Lopa S, Arrigoni C. Advanced Microfluidic Models of Cancer and Immune Cell Extravasation: A Systematic Review of the Literature. Front Bioeng Biotechnol 2020; 8:907. [PMID: 32984267 PMCID: PMC7479057 DOI: 10.3389/fbioe.2020.00907] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/14/2020] [Indexed: 12/12/2022] Open
Abstract
Extravasation is a multi-step process implicated in many physiological and pathological events. This process is essential to get leukocytes to the site of injury or infection but is also one of the main steps in the metastatic cascade in which cancer cells leave the primary tumor and migrate to target sites through the vascular route. In this perspective, extravasation is a double-edged sword. This systematic review analyzes microfluidic 3D models that have been designed to investigate the extravasation of cancer and immune cells. The purpose of this systematic review is to provide an exhaustive summary of the advanced microfluidic 3D models that have been designed to study the extravasation of cancer and immune cells, offering a perspective on the current state-of-the-art. To this end, we set the literature search cross-examining PUBMED and EMBASE databases up to January 2020 and further included non-indexed references reported in relevant reviews. The inclusion criteria were defined in agreement between all the investigators, aimed at identifying studies which investigate the extravasation process of cancer cells and/or leukocytes in microfluidic platforms. Twenty seven studies among 174 examined each step of the extravasation process exploiting 3D microfluidic devices and hence were included in our review. The analysis of the results obtained with the use of microfluidic models allowed highlighting shared features and differences in the extravasation of immune and cancer cells, in view of the setup of a common framework, that could be beneficial for the development of therapeutic approaches fostering or hindering the extravasation process.
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Affiliation(s)
- Carlotta Mondadori
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, Milan, Italy
| | - Martina Crippa
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Milan, Italy
- Regenerative Medicine Technologies Laboratory, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
| | - Matteo Moretti
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, Milan, Italy
- Regenerative Medicine Technologies Laboratory, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
| | - Christian Candrian
- Regenerative Medicine Technologies Laboratory, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
| | - Silvia Lopa
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, Milan, Italy
| | - Chiara Arrigoni
- Regenerative Medicine Technologies Laboratory, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
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Soremekun OS, Omolabi KF, Soliman MES. Identification and classification of differentially expressed genes reveal potential molecular signature associated with SARS-CoV-2 infection in lung adenocarcinomal cells. INFORMATICS IN MEDICINE UNLOCKED 2020; 20:100384. [PMID: 32835074 PMCID: PMC7308782 DOI: 10.1016/j.imu.2020.100384] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/20/2020] [Accepted: 06/21/2020] [Indexed: 01/04/2023] Open
Abstract
Genomic techniques such as next-generation sequencing and microarrays have facilitated the identification and classification of molecular signatures inherent in cells upon viral infection, for possible therapeutic targets. Therefore, in this study, we performed a differential gene expression analysis, pathway enrichment analysis, and gene ontology on RNAseq data obtained from SARS-CoV-2 infected A549 cells. Differential expression analysis revealed that 753 genes were up-regulated while 746 down-regulated. SNORA81, OAS2, SYCP2, LOC100506985, and SNORD35B are the top 5 upregulated genes upon SARS-Cov-2 infection. Expectedly, these genes have been implicated in the immune response to viral assaults. In the Ontology of protein classification, a high percentage of the genes are classified as Gene-specific transcriptional regulator, metabolite interconversion enzyme, and Protein modifying enzymes. Twenty pathways with P-value lower than 0.05 were enriched in the up-regulated genes while 18 pathways are enriched in the down-regulated DEGs. The toll-like receptor signalling pathway is one of the major pathways enriched. This pathway plays an important role in the innate immune system by identifying the pathogen-associated molecular signature emanating from various microorganisms. Taken together, our results present a novel understanding of genes and corresponding pathways upon SARS-Cov-2 infection, and could facilitate the identification of novel therapeutic targets and biomarkers in the treatment of COVID-19.
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Affiliation(s)
- Opeyemi S Soremekun
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa
| | - Kehinde F Omolabi
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa
| | - Mahmoud E S Soliman
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa
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de Lima AO, Koltes JE, Diniz WJS, de Oliveira PSN, Cesar ASM, Tizioto PC, Afonso J, de Souza MM, Petrini J, Rocha MIP, Cardoso TF, Neto AZ, Coutinho LL, Mourão GB, Regitano LCA. Potential Biomarkers for Feed Efficiency-Related Traits in Nelore Cattle Identified by Co-expression Network and Integrative Genomics Analyses. Front Genet 2020; 11:189. [PMID: 32194642 PMCID: PMC7064723 DOI: 10.3389/fgene.2020.00189] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 02/17/2020] [Indexed: 12/14/2022] Open
Abstract
Feed efficiency helps to reduce environmental impacts from livestock production, improving beef cattle profitability. We identified potential biomarkers (hub genes) for feed efficiency, by applying co-expression analysis in Longissimus thoracis RNA-Seq data from 180 Nelore steers. Six co-expression modules were associated with six feed efficiency-related traits (p-value ≤ 0.05). Within these modules, 391 hub genes were enriched for pathways as protein synthesis, muscle growth, and immune response. Trait-associated transcription factors (TFs) ELF1, ELK3, ETS1, FLI1, and TCF4, were identified with binding sites in at least one hub gene. Gene expression of CCDC80, FBLN5, SERPINF1, and OGN was associated with multiple feed efficiency-related traits (FDR ≤ 0.05) and were previously related to glucose homeostasis, oxidative stress, fat mass, and osteoblastogenesis, respectively. Potential regulatory elements were identified, integrating the hub genes with previous studies from our research group, such as the putative cis-regulatory elements (eQTLs) inferred as affecting the PCDH18 and SPARCL1 hub genes related to immune system and adipogenesis, respectively. Therefore, our analyses contribute to a better understanding of the biological mechanisms underlying feed efficiency in bovine and the hub genes disclosed can be used as biomarkers for feed efficiency-related traits in Nelore cattle.
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Affiliation(s)
- Andressa O de Lima
- Center for Biological and Health Sciences, Federal University of São Carlos, São Carlos, Brazil
| | - James E Koltes
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Wellison J S Diniz
- Center for Biological and Health Sciences, Federal University of São Carlos, São Carlos, Brazil
| | | | - Aline S M Cesar
- Department of Agroindustry, Food and Nutrition, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
| | | | - Juliana Afonso
- Center for Biological and Health Sciences, Federal University of São Carlos, São Carlos, Brazil
| | - Marcela M de Souza
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Juliana Petrini
- Exact Sciences Institute, Federal University of Alfenas, Alfenas, Brazil
| | - Marina I P Rocha
- Center for Biological and Health Sciences, Federal University of São Carlos, São Carlos, Brazil
| | - Tainã F Cardoso
- Embrapa Pecuária Sudeste, Empresa Brazileira de Pesquisa Agropecuária, São Carlos, Brazil
| | - Adhemar Zerlotini Neto
- Embrapa Informática Agropecuária, Empresa Brazileira de Pesquisa Agropecuária, Campinas, Brazil
| | - Luiz L Coutinho
- Department of Animal Science, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
| | - Gerson B Mourão
- Department of Animal Science, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil
| | - Luciana C A Regitano
- Embrapa Pecuária Sudeste, Empresa Brazileira de Pesquisa Agropecuária, São Carlos, Brazil
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AISA can control the inflammatory facet of SASP. Mech Ageing Dev 2020; 186:111206. [DOI: 10.1016/j.mad.2019.111206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 12/29/2019] [Accepted: 12/30/2019] [Indexed: 12/12/2022]
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Glaría E, Valledor AF. Roles of CD38 in the Immune Response to Infection. Cells 2020; 9:cells9010228. [PMID: 31963337 PMCID: PMC7017097 DOI: 10.3390/cells9010228] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/12/2020] [Accepted: 01/14/2020] [Indexed: 12/13/2022] Open
Abstract
CD38 is a multifunctional protein widely expressed in cells from the immune system and as a soluble form in biological fluids. CD38 expression is up-regulated by an array of inflammatory mediators, and it is frequently used as a cell activation marker. Studies in animal models indicate that CD38 functional expression confers protection against infection by several bacterial and parasitic pathogens. In addition, infectious complications are associated with anti-CD38 immunotherapy. Although CD38 displays receptor and enzymatic activities that contribute to the establishment of an effective immune response, recent work raises the possibility that CD38 might also enhance the immunosuppressive potential of regulatory leukocytes. This review integrates the current knowledge on the diversity of functions mediated by CD38 in the host defense to infection.
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Priyadarshini CS, Balaji T, Kumar JA, Subramanian M, Sundaramurthi I, Meera M. Chlorpyrifos and its metabolite modulates angiogenesis in the chorioallantoic membrane of chick embryo. J Basic Clin Physiol Pharmacol 2019; 31:jbcpp-2019-0041. [PMID: 31622248 DOI: 10.1515/jbcpp-2019-0041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 07/02/2019] [Indexed: 02/07/2023]
Abstract
Background Chlorpyrifos (CPF) is an organophosphate insecticide, acaricide, and miticide used primarily to control foliage and soilborne insect pests on a variety of food and feed crops. Since trace amounts of these compounds are found in water and food products, they easily enter into the organ system unnoticed. In the same way, the compound or its metabolite gets transmitted from the parent to the embryo mainly through blood vessels. Since blood vessels form the major route of transport, it is pertinent to study the effect of these compounds during angiogenesis. The effect of CPF and 3,5,6-trichloro-2-pyridinol (TCPy) on the angiogenesis of chick embryo was evaluated in the chorioallantoic membrane (CAM) using an ex vivo model. Methods Nine-day-old incubated eggs where inoculated with various doses of CPF and TCPy. After 48 h of incubation, the CAM layers were retrieved and analyzed using angiogenesis software to obtain the density of blood vessels. Histomorphometric studies were performed to measure the thickness of vessel walls. The expression of VEGF, VEGFR2, and N-cadherin genes responsible for angiogenesis were analyzed. Results The exposure to the parent compound CPF and its metabolite TCPy promoted angiogenesis in groups administered with lower concentration of the pesticide and its metabolite, whereas a decline in angiogenesis was observed at higher concentrations. These observations were made by analyzing the density, histomorphometry results, and semiquantitative reverse transcriptase polymerase chain reaction (RT-PCR) results. The density, thickness, and lumen size of blood vessels in the groups with low concentration of CPF and TCPy were 28.34, 9 μm, and 30 μm, respectively, whereas in the groups with higher CPF and TCPy concentrations, they were 12, 3 μm, and 9 μm, respectively. Conclusions Hence, CPF and its metabolites interfere with angiogenesis in the CAM of chick embryos. Because of their estrogen-mimicking ability, pesticides are the prime etiological suspects of increasing alteration in blood vessel formation. These results may be of help in future studies on the effect of CPF in embryonic growth, wound healing, diabetes, and tumors.
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Affiliation(s)
- C Swathi Priyadarshini
- Department of Anatomy, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Chennai 603103, Tamil Nadu, India
| | - Thotakura Balaji
- Department of Anatomy, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Chennai 603103, Tamil Nadu, India, Mobile: +91 7358449857
| | - Jyothi Ashok Kumar
- Department of Anatomy, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Chennai 603103, Tamil Nadu, India
| | - Manickam Subramanian
- Department of Anatomy, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Chennai 603103, Tamil Nadu, India
| | - Indumathi Sundaramurthi
- Department of Anatomy, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Chennai 603103, Tamil Nadu, India
| | - M Meera
- Department of Medical Biotechnology, Faculty of Allied Health Science, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Chennai 603103, Tamil Nadu, India
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Wettschureck N, Strilic B, Offermanns S. Passing the Vascular Barrier: Endothelial Signaling Processes Controlling Extravasation. Physiol Rev 2019; 99:1467-1525. [PMID: 31140373 DOI: 10.1152/physrev.00037.2018] [Citation(s) in RCA: 150] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A central function of the vascular endothelium is to serve as a barrier between the blood and the surrounding tissue of the body. At the same time, solutes and cells have to pass the endothelium to leave or to enter the bloodstream to maintain homeostasis. Under pathological conditions, for example, inflammation, permeability for fluid and cells is largely increased in the affected area, thereby facilitating host defense. To appropriately function as a regulated permeability filter, the endothelium uses various mechanisms to allow solutes and cells to pass the endothelial layer. These include transcellular and paracellular pathways of which the latter requires remodeling of intercellular junctions for its regulation. This review provides an overview on endothelial barrier regulation and focuses on the endothelial signaling mechanisms controlling the opening and closing of paracellular pathways for solutes and cells such as leukocytes and metastasizing tumor cells.
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Affiliation(s)
- Nina Wettschureck
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research , Bad Nauheim , Germany ; and Centre for Molecular Medicine, Medical Faculty, J.W. Goethe University Frankfurt , Frankfurt , Germany
| | - Boris Strilic
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research , Bad Nauheim , Germany ; and Centre for Molecular Medicine, Medical Faculty, J.W. Goethe University Frankfurt , Frankfurt , Germany
| | - Stefan Offermanns
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research , Bad Nauheim , Germany ; and Centre for Molecular Medicine, Medical Faculty, J.W. Goethe University Frankfurt , Frankfurt , Germany
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Organization of the Skin Immune System and Compartmentalized Immune Responses in Infectious Diseases. Clin Microbiol Rev 2019; 32:32/4/e00034-18. [PMID: 31366611 DOI: 10.1128/cmr.00034-18] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The skin is an organ harboring several types of immune cells that participate in innate and adaptive immune responses. The immune system of the skin comprises both skin cells and professional immune cells that together constitute what is designated skin-associated lymphoid tissue (SALT). In this review, I extensively discuss the organization of SALT and the mechanisms involved in its responses to infectious diseases of the skin and mucosa. The nature of these SALT responses, and the cellular mediators involved, often determines the clinical course of such infections. I list and describe the components of innate immunity, such as the roles of the keratinocyte barrier and of inflammatory and natural killer cells. I also examine the mechanisms involved in adaptive immune responses, with emphasis on new cytokine profiles, and the role of cell death phenomena in host-pathogen interactions and control of the immune responses to infectious agents. Finally, I highlight the importance of studying SALT in order to better understand host-pathogen relationships involving the skin and detail future directions in the immunological investigation of this organ, especially in light of recent findings regarding the skin immune system.
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van der Wijk AE, Lachkar N, de Vos J, Grootemaat AE, van der Wel NN, Hordijk PL, Bakker ENTP, vanBavel E. Extravasation of Microspheres in a Rat Model of Silent Brain Infarcts. Stroke 2019; 50:1590-1594. [PMID: 31136287 DOI: 10.1161/strokeaha.119.024975] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose- We developed a rat model of silent brain infarcts based on microsphere infusion and investigated their impact on perfusion and tissue damage. Second, we studied the extent and mechanisms of perfusion recovery. Methods- At day 0, 15 µm fluorescent microspheres were injected into the right common carotid artery of F344 rats. At days 1, 7, or 28, the brain was removed, cut in 100-µm cryosections, and processed for immunofluorescent staining and analysis. Results- Injection of microspheres caused mild and transient damage to the treated hemisphere, with a decrease in perfused capillary volume at day 1, as compared with the untreated hemisphere. At day 1 but not at days 7 and 28, we observed IgG staining outside of the vessels, indicating vessel leakage. All microspheres were located inside the lumen of the vessels at day 1, whereas the vast majority (≈80%) of the microspheres were extravascular at day 7, and 100% at day 28. This was accompanied by restoration of perfused capillary volume. Conclusions- Microspheres cause mild and transient damage, and effective extravasation mechanisms exist in the brain to clear microsized emboli from the vessels.
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Affiliation(s)
- Anne-Eva van der Wijk
- From the Department of Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences (A.-E.v.d.W., N.L., J.D.V., E.N.T.P.B., E.v.B.), Amsterdam University Medical Center, University of Amsterdam, the Netherlands
| | - Nadia Lachkar
- From the Department of Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences (A.-E.v.d.W., N.L., J.D.V., E.N.T.P.B., E.v.B.), Amsterdam University Medical Center, University of Amsterdam, the Netherlands
| | - Judith de Vos
- From the Department of Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences (A.-E.v.d.W., N.L., J.D.V., E.N.T.P.B., E.v.B.), Amsterdam University Medical Center, University of Amsterdam, the Netherlands
| | - Anita E Grootemaat
- Department of Medical Biology, Electron Microscopy Center Amsterdam (A.E.G., N.N.v.d.W.), Amsterdam University Medical Center, University of Amsterdam, the Netherlands
| | - Nicole N van der Wel
- Department of Medical Biology, Electron Microscopy Center Amsterdam (A.E.G., N.N.v.d.W.), Amsterdam University Medical Center, University of Amsterdam, the Netherlands
| | - Peter L Hordijk
- Department of Physiology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, the Netherlands (P.L.H.)
| | - Erik N T P Bakker
- From the Department of Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences (A.-E.v.d.W., N.L., J.D.V., E.N.T.P.B., E.v.B.), Amsterdam University Medical Center, University of Amsterdam, the Netherlands
| | - Ed vanBavel
- From the Department of Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences (A.-E.v.d.W., N.L., J.D.V., E.N.T.P.B., E.v.B.), Amsterdam University Medical Center, University of Amsterdam, the Netherlands
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Ashraf MU, Jeong Y, Roh SE, Bae YS. Transendothelial migration (TEM) of in vitro generated dendritic cell vaccine in cancer immunotherapy. Arch Pharm Res 2019; 42:582-590. [PMID: 30937843 DOI: 10.1007/s12272-019-01145-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 03/12/2019] [Indexed: 12/18/2022]
Abstract
Many efforts have been made to improve the efficacy of dendritic cell (DC) vaccines in DC-based cancer immunotherapy. One of these efforts is to deliver a DC vaccine more efficiently to the regional lymph nodes (rLNs) to induce stronger anti-tumor immunity. Together with chemotaxis, transendothelial migration (TEM) is believed to be a critical and indispensable step for DC vaccine migration to the rLNs after administration. However, the mechanism underlying the in vitro-generated DC TEM in DC-based cancer immunotherapy has been largely unknown. Currently, junctional adhesion molecules (JAMs) were found to play an important role in the TEM of in vitro generated DC vaccines. This paper reviews the TEM of DC vaccines and TEM-associated JAM molecules.
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Affiliation(s)
- Muhammad Umer Ashraf
- Department of Biological Sciences, Science Research Center (SRC) for Immune Research on Non-lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do, 16419, South Korea
| | - Yideul Jeong
- Department of Biological Sciences, Science Research Center (SRC) for Immune Research on Non-lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do, 16419, South Korea
| | - Seung-Eon Roh
- Department of Neuroscience, Johns Hopkins University School of Medicine, 725 North Wolfe St, Baltimore, MD, 21205, USA
| | - Yong-Soo Bae
- Department of Biological Sciences, Science Research Center (SRC) for Immune Research on Non-lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do, 16419, South Korea. .,Department of Biological Science, Research Complex Bldg 1, Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do, 16419, South Korea.
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Rey-Gallardo A, Tomlins H, Joachim J, Rahman I, Kitscha P, Frudd K, Parsons M, Ivetic A. Sequential binding of ezrin and moesin to L-selectin regulates monocyte protrusive behaviour during transendothelial migration. J Cell Sci 2018; 131:jcs.215541. [PMID: 29777033 PMCID: PMC6051341 DOI: 10.1242/jcs.215541] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 05/02/2018] [Indexed: 01/21/2023] Open
Abstract
Leukocyte transendothelial migration (TEM) is absolutely fundamental to the inflammatory response, and involves initial pseudopod protrusion and subsequent polarised migration across inflamed endothelium. Ezrin/radixin/moesin (ERM) proteins are expressed in leukocytes and mediate cell shape changes and polarity. The spatio-temporal organisation of ERM proteins with their targets, and their individual contribution to protrusion during TEM, has never been explored. Here, we show that blocking binding of moesin to phosphatidylinositol 4,5-bisphosphate (PIP2) reduces its C-terminal phosphorylation during monocyte TEM, and that on–off cycling of ERM activity is essential for pseudopod protrusion into the subendothelial space. Reactivation of ERM proteins within transmigrated pseudopods re-establishes their binding to targets, such as L-selectin. Knockdown of ezrin, but not moesin, severely impaired the recruitment of monocytes to activated endothelial monolayers under flow, suggesting that this protein plays a unique role in the early recruitment process. Ezrin binds preferentially to L-selectin in resting cells and during early TEM. The moesin–L-selectin interaction increases within transmigrated pseudopods as TEM proceeds, facilitating localised L-selectin ectodomain shedding. In contrast, a non-cleavable L-selectin mutant binds selectively to ezrin, driving multi-pseudopodial extensions. Taken together, these results show that ezrin and moesin play mutually exclusive roles in modulating L-selectin signalling and shedding to control protrusion dynamics and polarity during monocyte TEM. Summary: Ezrin and moesin co-ordinate binding to L-selectin in monocytes to, respectively, regulate pseudopod protrusion and ectodomain shedding during transendothelial migration.
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Affiliation(s)
- Angela Rey-Gallardo
- School of Cardiovascular Medicine and Sciences, James Black Centre, BHF Centre of Research Excellence, 125 Coldharbour Lane, King's College London, London SE5 9NU, UK
| | - Hannah Tomlins
- School of Cardiovascular Medicine and Sciences, James Black Centre, BHF Centre of Research Excellence, 125 Coldharbour Lane, King's College London, London SE5 9NU, UK
| | - Justin Joachim
- School of Cardiovascular Medicine and Sciences, James Black Centre, BHF Centre of Research Excellence, 125 Coldharbour Lane, King's College London, London SE5 9NU, UK
| | - Izajur Rahman
- School of Cardiovascular Medicine and Sciences, James Black Centre, BHF Centre of Research Excellence, 125 Coldharbour Lane, King's College London, London SE5 9NU, UK
| | - Phoebe Kitscha
- School of Cardiovascular Medicine and Sciences, James Black Centre, BHF Centre of Research Excellence, 125 Coldharbour Lane, King's College London, London SE5 9NU, UK
| | - Karen Frudd
- School of Cardiovascular Medicine and Sciences, James Black Centre, BHF Centre of Research Excellence, 125 Coldharbour Lane, King's College London, London SE5 9NU, UK
| | - Maddy Parsons
- School of Basic & Medical Biosciences, Randall Division of Cell & Molecular Biophysics, New Hunt's House, London, SE1 1UL, UK
| | - Aleksandar Ivetic
- School of Cardiovascular Medicine and Sciences, James Black Centre, BHF Centre of Research Excellence, 125 Coldharbour Lane, King's College London, London SE5 9NU, UK
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Schimmel L, de Ligt A, Tol S, de Waard V, van Buul JD. Endothelial RhoB and RhoC are dispensable for leukocyte diapedesis and for maintaining vascular integrity during diapedesis. Small GTPases 2018; 11:225-232. [PMID: 28960175 DOI: 10.1080/21541248.2017.1377815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Active remodeling of the actin cytoskeleton in endothelial cells is necessary for allowing leukocytes to cross the barrier during the process of transendothelial migration (TEM). Involvement of RhoGTPases to regulate actin organization is inevitable, and we recently reported on the local function of RhoA in limiting vascular leakage during leukocyte TEM. As a follow-up we investigated here the possible involvement of two other closely-related GTPases; RhoB and RhoC, in regulating leukocyte TEM and vascular barrier maintenance. Physiological flow experiments showed no substantial involvement of either endothelial RhoB or RhoC in neutrophil adhesion and transmigration efficiency. Besides neutrophil TEM, we did not observe a role for endothelial RhoB or RhoC in limiting vascular leakage in both inflammatory conditions and during TEM. In conclusion, endothelial RhoB and RhoC are both dispensable for regulating leukocyte diapedesis and for maintaining vascular barrier function under inflammatory conditions and during leukocyte diapedesis.
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Affiliation(s)
- Lilian Schimmel
- Department of Plasma Proteins, Molecular Cell Biology Lab, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Aafke de Ligt
- Department of Plasma Proteins, Molecular Cell Biology Lab, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Simon Tol
- Department of Central Facility, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Vivian de Waard
- Department of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands
| | - Jaap D van Buul
- Department of Plasma Proteins, Molecular Cell Biology Lab, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Huang R, He Y, Sun B, Liu B. Bioinformatic Analysis Identifies Three Potentially Key Differentially Expressed Genes in Peripheral Blood Mononuclear Cells of Patients with Takayasu's Arteritis. CELL JOURNAL 2017; 19:647-653. [PMID: 29105401 PMCID: PMC5672105 DOI: 10.22074/cellj.2018.4991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 05/09/2017] [Indexed: 11/29/2022]
Abstract
Objective This study aimed to identify several potentially key genes associated with the pathogenesis of Takayasu’s
arteritis (TA). This identification may lead to a deeper mechanistic understanding of TA etiology and pave the way for
potential therapeutic approaches.
Materials and Methods In this experimental study, the microarray dataset GSE33910, which includes expression
data for peripheral blood mononuclear cell (PBMC) samples isolated from TA patients and normal volunteers, was
downloaded from the publicly accessible Gene Expression Omnibus (GEO) database. Differentially expressed genes
(DEGs) were identified in PBMCs of TA patients compared with normal controls. Gene ontology (GO) enrichment
analysis of DEGs and analysis of protein-protein interaction (PPI) network were carried out. Several hub proteins were
extracted from the PPI network based on node degrees and random walk algorithm. Additionally, transcription factors
(TFs) were predicted and the corresponding regulatory network was constructed.
Results A total of 932 DEGs (372 up- and 560 down-regulated genes) were identified in PBMCs from TA patients.
Interestingly, up-regulated and down-regulated genes were involved in different GO terms and pathways. A PPI network
of proteins encoded by DEGs was constructed and RHOA, FOS, EGR1, and GNB1 were considered to be hub proteins
with both higher random walk score and node degree. A total of 13 TFs were predicted to be differentially expressed. A
total of 49 DEGs had been reported to be associated with TA in the Comparative Toxicogenomics Database (CTD). The
only TA marker gene in the CTD database was NOS2, confirmed by three studies. However, NOS2 was not significantly
altered in the analyzed microarray dataset. Nevertheless,NOS3 was a significantly down-regulated gene and was
involved in the platelet activation pathway.
Conclusion RHOA, FOS, and EGR1 are potential candidate genes for the diagnosis and therapy of TA.
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Affiliation(s)
- Renping Huang
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yang He
- Department of Anesthesiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Bei Sun
- Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Bing Liu
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
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Morsing KSH, Peters AL, van Buul JD, Vlaar APJ. The role of endothelium in the onset of antibody-mediated TRALI. Blood Rev 2017; 32:1-7. [PMID: 28823763 DOI: 10.1016/j.blre.2017.08.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 06/14/2017] [Accepted: 08/04/2017] [Indexed: 12/11/2022]
Abstract
Transfusion Related Acute Lung Injury (TRALI) is one of the leading causes of mortality and morbidity following blood transfusion. The mechanisms behind the disease are not yet fully understood but seem to involve many different activating pathways and donor factors, in synergy with patient susceptibility. Studies have focused mostly on neutrophil activation, as aggregates of neutrophils and edema in lungs are found in post-mortem histological sections. This review aims to highlight the role of the endothelium in TRALI, as activated endothelium is the main promoter of leukocyte transmigration, and creates the barrier between blood and tissue. Since recent evidence suggests that a strong endothelial barrier prevents leukocyte transmigration and vascular leakage, we suggest that strengthening this barrier may be key to TRALI prevention.
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Affiliation(s)
- K S H Morsing
- Department of Plasma Proteins, Molecular Cell Biology Lab, Sanquin Research and Landsteiner Laboratory, Sanquin, Amsterdam, The Netherlands; Laboratory of Experimental Intensive Care and Anesthesiology, Academic Medical Center, Amsterdam, The Netherlands
| | - A L Peters
- Laboratory of Experimental Intensive Care and Anesthesiology, Academic Medical Center, Amsterdam, The Netherlands; Department of Intensive Care Medicine, Academic Medical Center, Amsterdam, The Netherlands
| | - J D van Buul
- Department of Plasma Proteins, Molecular Cell Biology Lab, Sanquin Research and Landsteiner Laboratory, Sanquin, Amsterdam, The Netherlands
| | - A P J Vlaar
- Laboratory of Experimental Intensive Care and Anesthesiology, Academic Medical Center, Amsterdam, The Netherlands; Department of Intensive Care Medicine, Academic Medical Center, Amsterdam, The Netherlands.
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