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White MJV, Ozkan M, Gomez-Medellin JE, Rączy MM, Koss KM, Solanki A, Zhang ZJ, Alpar AT, Naved BA, Wertheim J, Hubbell JA. Blocking antibodies against integrin-α3, -αM, and -αMβ2 de-differentiate myofibroblasts, and improve lung fibrosis and kidney fibrosis. Sci Rep 2024; 14:21623. [PMID: 39284829 PMCID: PMC11405753 DOI: 10.1038/s41598-024-70737-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 08/20/2024] [Indexed: 09/22/2024] Open
Abstract
Fibrosis is involved in 45% of deaths in the United States, and no treatment exists to reverse the progression of lung or kidney fibrosis. Myofibroblasts are key to the progression and maintenance of fibrosis. We investigated features of cell adhesion necessary for monocytes to differentiate into myofibroblasts, seeking to identify pathways key to myofibroblast differentiation. Blocking antibodies against integrins α3, αM, and αMβ2 de-differentiate myofibroblasts in vitro, lower the pro-fibrotic secretome of myofibroblasts, and treat lung fibrosis and inhibit kidney fibrosis in vivo. Decorin's collagen-binding peptide can be used to direct functionalized blocking antibodies (against integrins-α3, -αM, -αMβ2) to both fibrotic lungs and fibrotic kidneys, reducing the dose of antibody necessary to treat fibrosis. This targeted immunotherapy blocking key integrins may be an effective therapeutic for the treatment of fibrosis.
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Affiliation(s)
- Michael J V White
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Melis Ozkan
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | | | - Michal M Rączy
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Kyle M Koss
- College of Medicine, University of Arizona, Tucson, AZ, 85724, USA
| | - Ani Solanki
- Animal Resources Center, University of Chicago, Chicago, IL, 60637, USA
| | - Zheng Jenny Zhang
- Comprehensive Transplant Center & Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Aaron T Alpar
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Bilal A Naved
- Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Jason Wertheim
- College of Medicine, University of Arizona, Tucson, AZ, 85724, USA
| | - Jeffrey A Hubbell
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA.
- Committee on Immunology, University of Chicago, Chicago, IL, 60637, USA.
- Committee on Cancer Biology, University of Chicago, Chicago, IL, 60637, USA.
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2
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Seclen E, Jang JC, Lawal AO, Pulicani S, Boyne A, Tkach D, Juillerat A, Duchateau P, Valton J. TALEN-mediated intron editing of HSPCs enables transgene expression restricted to the myeloid lineage. Mol Ther 2024; 32:1643-1657. [PMID: 38582963 PMCID: PMC11184328 DOI: 10.1016/j.ymthe.2024.04.001] [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: 09/26/2023] [Revised: 03/06/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024] Open
Abstract
Gene therapy in hematopoietic stem and progenitor cells (HSPCs) shows great potential for the treatment of inborn metabolic diseases. Typical HSPC gene therapy approaches rely on constitutive promoters to express a therapeutic transgene, which is associated with multiple disadvantages. Here, we propose a novel promoterless intronic gene editing approach that triggers transgene expression only after cellular differentiation into the myeloid lineage. We integrated a splicing-competent eGFP cassette into the first intron of CD11b and observed expression of eGFP in the myeloid lineage but minimal to no expression in HSPCs or differentiated non-myeloid lineages. In vivo, edited HSPCs successfully engrafted in immunodeficient mice and displayed transgene expression in the myeloid compartment of multiple tissues. Using the same approach, we expressed alpha-L-iduronidase (IDUA), the defective enzyme in Mucopolysaccharidosis type I, and observed a 10-fold supraendogenous IDUA expression exclusively after myeloid differentiation. Edited cells efficiently populated bone marrow, blood, and spleen of immunodeficient mice, and retained the capacity to secrete IDUA ex vivo. Importantly, cells edited with the eGFP and IDUA transgenes were also found in the brain. This approach may unlock new therapeutic strategies for inborn metabolic and neurological diseases that require the delivery of therapeutics in brain.
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3
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Lim H, Choe YH, Lee J, Kim GE, Hyun JW, Hyun YM. Neutrophil Migration Is Mediated by VLA-6 in the Inflamed Adipose Tissue. Immune Netw 2024; 24:e23. [PMID: 38974215 PMCID: PMC11224672 DOI: 10.4110/in.2024.24.e23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/20/2024] [Accepted: 05/26/2024] [Indexed: 07/09/2024] Open
Abstract
Adipose tissue, well known for its endocrine function, plays an immunological role in the body. The inflamed adipose tissue under LPS-induced systemic inflammation is characterized by the dominance of pro-inflammatory immune cells, particularly neutrophils. Although migration of macrophages toward damaged or dead adipocytes to form a crown-like structure in inflamed adipose tissue has been revealed, the neutrophilic interaction with adipocytes or the extracellular matrix remains unknown. Here, we demonstrated the involvement of adhesion molecules, particularly integrin α6β1, of neutrophils in adipocytes or the extracellular matrix of inflamed adipose tissue interaction. These results suggest that disrupting the adhesion between adipose tissue components and neutrophils may govern the accumulation of excessive neutrophils in inflamed tissues, a prerequisite in developing anti-inflammatory therapeutics by inhibiting inflammatory immune cells.
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Affiliation(s)
- Hyunseo Lim
- Department of Anatomy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Young Ho Choe
- Department of Anatomy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jaeho Lee
- Department of Anatomy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Gi Eun Kim
- Department of Anatomy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jin Won Hyun
- Department of Biochemistry, Jeju Research Center for Natural Medicine, Jeju National University College of Medicine, Jeju 63243, Korea
| | - Young-Min Hyun
- Department of Anatomy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
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4
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He T, Giacomini D, Tolomelli A, Baiula M, Gentilucci L. Conjecturing about Small-Molecule Agonists and Antagonists of α4β1 Integrin: From Mechanistic Insight to Potential Therapeutic Applications. Biomedicines 2024; 12:316. [PMID: 38397918 PMCID: PMC10887150 DOI: 10.3390/biomedicines12020316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/18/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
Integrins are heterodimeric cell-surface receptors that regulate cell-cell adhesion and cellular functions through bidirectional signaling. On the other hand, anomalous trafficking of integrins is also implicated in severe pathologies as cancer, thrombosis, inflammation, allergies, and multiple sclerosis. For this reason, they are attractive candidates as drug targets. However, despite promising preclinical data, several anti-integrin drugs failed in late-stage clinical trials for chronic indications, with paradoxical side effects. One possible reason is that, at low concentration, ligands proposed as antagonists may also act as partial agonists. Hence, the comprehension of the specific structural features for ligands' agonism or antagonism is currently of the utmost interest. For α4β1 integrin, the situation is particularly obscure because neither the crystallographic nor the cryo-EM structures are known. In addition, very few potent and selective agonists are available for investigating the mechanism at the basis of the receptor activation. In this account, we discuss the physiological role of α4β1 integrin and the related pathologies, and review the few agonists. Finally, we speculate on plausible models to explain agonism vs. antagonism by comparison with RGD-binding integrins and by analysis of computational simulations performed with homology or hybrid receptor structures.
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Affiliation(s)
- Tingting He
- Department of Chemistry “G. Ciamician”, University of Bologna, Via Gobetti 83, Ue4, 40129 Bologna, Italy; (T.H.); (D.G.); (A.T.)
| | - Daria Giacomini
- Department of Chemistry “G. Ciamician”, University of Bologna, Via Gobetti 83, Ue4, 40129 Bologna, Italy; (T.H.); (D.G.); (A.T.)
| | - Alessandra Tolomelli
- Department of Chemistry “G. Ciamician”, University of Bologna, Via Gobetti 83, Ue4, 40129 Bologna, Italy; (T.H.); (D.G.); (A.T.)
| | - Monica Baiula
- Department of Pharmacology and Biotechnology (FABIT), University of Bologna, Via Irnerio 48, 40126 Bologna, Italy;
| | - Luca Gentilucci
- Department of Chemistry “G. Ciamician”, University of Bologna, Via Gobetti 83, Ue4, 40129 Bologna, Italy; (T.H.); (D.G.); (A.T.)
- Health Sciences & Technologies (HST) CIRI, University of Bologna, Via Tolara di Sopra 41/E, 40064 Ozzano Emilia, Italy
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5
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Saravi B, Goebel U, Hassenzahl LO, Jung C, David S, Feldheiser A, Stopfkuchen-Evans M, Wollborn J. Capillary leak and endothelial permeability in critically ill patients: a current overview. Intensive Care Med Exp 2023; 11:96. [PMID: 38117435 PMCID: PMC10733291 DOI: 10.1186/s40635-023-00582-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/12/2023] [Indexed: 12/21/2023] Open
Abstract
Capillary leak syndrome (CLS) represents a phenotype of increased fluid extravasation, resulting in intravascular hypovolemia, extravascular edema formation and ultimately hypoperfusion. While endothelial permeability is an evolutionary preserved physiological process needed to sustain life, excessive fluid leak-often caused by systemic inflammation-can have detrimental effects on patients' outcomes. This article delves into the current understanding of CLS pathophysiology, diagnosis and potential treatments. Systemic inflammation leading to a compromise of endothelial cell interactions through various signaling cues (e.g., the angiopoietin-Tie2 pathway), and shedding of the glycocalyx collectively contribute to the manifestation of CLS. Capillary permeability subsequently leads to the seepage of protein-rich fluid into the interstitial space. Recent insights into the importance of the sub-glycocalyx space and preserving lymphatic flow are highlighted for an in-depth understanding. While no established diagnostic criteria exist and CLS is frequently diagnosed by clinical characteristics only, we highlight more objective serological and (non)-invasive measurements that hint towards a CLS phenotype. While currently available treatment options are limited, we further review understanding of fluid resuscitation and experimental approaches to target endothelial permeability. Despite the improved understanding of CLS pathophysiology, efforts are needed to develop uniform diagnostic criteria, associate clinical consequences to these criteria, and delineate treatment options.
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Affiliation(s)
- Babak Saravi
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA.
- Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center, University of Freiburg, University of Freiburg, Freiburg, Germany.
| | - Ulrich Goebel
- Department of Anesthesiology and Critical Care, St. Franziskus-Hospital, Muenster, Germany
| | - Lars O Hassenzahl
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Goethe University, Frankfurt, Germany
| | - Christian Jung
- Department of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University, Duesseldorf, Germany
| | - Sascha David
- Institute of Intensive Care Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Aarne Feldheiser
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, Evang. Kliniken Essen-Mitte, Huyssens-Stiftung/Knappschaft, University of Essen, Essen, Germany
| | - Matthias Stopfkuchen-Evans
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - Jakob Wollborn
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
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6
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Chauhan R, Tiwari M, Chaudhary A, Sharan Thakur R, Pande V, Das J. Chemokines: A key driver for inflammation in protozoan infection. Int Rev Immunol 2023; 43:211-228. [PMID: 37980574 DOI: 10.1080/08830185.2023.2281566] [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: 05/08/2023] [Accepted: 10/16/2023] [Indexed: 11/21/2023]
Abstract
Chemokines belong to the group of small proteins within the cytokine family having strong chemo-attractant properties. In most cases, the strong immuno-modulatory role of chemokines is crucial for generating the immune response against pathogens in various protozoan diseases. In this review, we have given a brief update on the classification, characterization, homeostasis, transcellular migration, and immuno-modulatory role of chemokines. Here we will evaluate the potential role of chemokines and their regulation in various protozoan diseases. There is a significant direct relationship between parasitic infection and the recruitment of effector cells of the immune response. Chemokines play an indispensable role in mediating several defense mechanisms against infection, such as leukocyte recruitment and the generation of innate and cell-mediated immunity that aids in controlling/eliminating the pathogen. This process is controlled by the chemotactic movement of chemokines induced as a primary host immune response. We have also addressed that chemokine expressions during infection are time-dependent and orchestrated in a systematic pattern that ultimately assists in generating a protective immune response. Taken together, this review provides a systematic understanding of the complexity of chemokines profiles during protozoan disease conditions and the rationale of targeting chemokines for the development of therapeutic strategies.
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Affiliation(s)
- Rubika Chauhan
- Parasite-Host Biology, National Institute of Malaria Research, Dwarka, New Delhi, India
| | - Mrinalini Tiwari
- Parasite-Host Biology, National Institute of Malaria Research, Dwarka, New Delhi, India
| | - Amrendra Chaudhary
- Parasite-Host Biology, National Institute of Malaria Research, Dwarka, New Delhi, India
| | - Reva Sharan Thakur
- Parasite-Host Biology, National Institute of Malaria Research, Dwarka, New Delhi, India
| | - Veena Pande
- Biotechnology Department, Kumaun University, Nainital, India
| | - Jyoti Das
- Parasite-Host Biology, National Institute of Malaria Research, Dwarka, New Delhi, India
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7
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Maldonado H, Leyton L. CSK-mediated signalling by integrins in cancer. Front Cell Dev Biol 2023; 11:1214787. [PMID: 37519303 PMCID: PMC10382208 DOI: 10.3389/fcell.2023.1214787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 06/19/2023] [Indexed: 08/01/2023] Open
Abstract
Cancer progression and metastasis are processes heavily controlled by the integrin receptor family. Integrins are cell adhesion molecules that constitute the central components of mechanosensing complexes called focal adhesions, which connect the extracellular environment with the cell interior. Focal adhesions act as key players in cancer progression by regulating biological processes, such as cell migration, invasion, proliferation, and survival. Src family kinases (SFKs) can interplay with integrins and their downstream effectors. SFKs also integrate extracellular cues sensed by integrins and growth factor receptors (GFR), transducing them to coordinate metastasis and cell survival in cancer. The non-receptor tyrosine kinase CSK is a well-known SFK member that suppresses SFK activity by phosphorylating its specific negative regulatory loop (C-terminal Y527 residue). Consequently, CSK may play a pivotal role in tumour progression and suppression by inhibiting SFK oncogenic effects in several cancer types. Remarkably, CSK can localise near focal adhesions when SFKs are activated and even interact with focal adhesion components, such as phosphorylated FAK and Paxillin, among others, suggesting that CSK may regulate focal adhesion dynamics and structure. Even though SFK oncogenic signalling has been extensively described before, the specific role of CSK and its crosstalk with integrins in cancer progression, for example, in mechanosensing, remain veiled. Here, we review how CSK, by regulating SFKs, can regulate integrin signalling, and focus on recent discoveries of mechanotransduction. We additionally examine the cross talk of integrins and GFR as well as the membrane availability of these receptors in cancer. We also explore new pharmaceutical approaches to these signalling pathways and analyse them as future therapeutic targets.
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Affiliation(s)
- Horacio Maldonado
- Receptor Dynamics in Cancer Laboratory, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Lisette Leyton
- Cellular Communication Laboratory, Programa de Biología Celular y Molecular, Center for Studies on Exercise, Metabolism and Cancer (CEMC), Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Chemical and Pharmaceutical Sciences and Faculty of Medicine, Universidad de Chile, Santiago, Chile
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8
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Fattahi MJ, Rehm BH, Matsuo H, Cuzzocrea S, Jafarnezhad-Ansariha F, Ahmadi H, Tofighi-Zavareh F, Oraei M, Aghazadeh Z, Mirshafiey A. Evaluation of cell adhesion molecules (LFA-1 and L-selectin) in ankylosing spondylitis patients after treatment with β-D-mannuronic acid (M2000). Indian J Med Res 2023; 157:453-459. [PMID: 37955219 PMCID: PMC10443726 DOI: 10.4103/ijmr.ijmr_448_19] [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: 03/11/2019] [Indexed: 11/14/2023] Open
Abstract
Background & objectives To examine β-D-mannuronic acid (M2000) effects on L-selectin shedding and leucocyte function-associated antigen-1 (LFA-1) expression as mechanisms of action of this drug in patients with ankylosing spondylitis (AS). Methods To investigate the molecular consequences of β-D-mannuronic acid on L-selectin shedding, flow cytometry method was used. Furthermore, the effect of it on LFA-1 gene expression was analyzed by using quantitative real time (qRT)-PCR technique. Results The LFA-1 expression in patients with AS was higher than controls (P=0.046). The LFA-1 expression after 12 wk therapy with β-D-mannuronic acid was meaningfully decreased (P=0.01). After 12 wk treatment with β-D-mannuronic acid, the frequency of CD62L-expressing CD4+ T cells in patients with AS, was not considerably altered, compared to the patients before therapy (P=0.5). Furthermore, after 12 wk therapy with β-D-mannuronic acid, L-selectin expression levels on CD4+ T-cells in patients with AS, were not remarkably changed, compared to the expression levels of these in patients before treatment (P=0.2). Interpretation & conclusions The results of this study for the first time showed that β-D-mannuronic acid can affect events of adhesion cascade in patients with AS. Moreover, β-D-mannuronic acid presented as an acceptable benefit to AS patients and could aid in the process of disease management.
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Affiliation(s)
- Mohammad Javad Fattahi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bernd H.A. Rehm
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand,
| | - Hidenori Matsuo
- Department of Clinical Research, Nagasaki Kawatana Medical Center, Nagasaki, Japan
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical & Environmental Sciences, University of Messina, Messina, Italy
| | - Fahimeh Jafarnezhad-Ansariha
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, International Campus, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hossein Ahmadi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Tofighi-Zavareh
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Oraei
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Aghazadeh
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Mirshafiey
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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9
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Piekarska K, Bonowicz K, Grzanka A, Jaworski ŁM, Reiter RJ, Slominski AT, Steinbrink K, Kleszczyński K, Gagat M. Melatonin and TGF-β-Mediated Release of Extracellular Vesicles. Metabolites 2023; 13:metabo13040575. [PMID: 37110233 PMCID: PMC10142249 DOI: 10.3390/metabo13040575] [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: 03/13/2023] [Revised: 04/12/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
The immune system, unlike other systems, must be flexible and able to "adapt" to fully cope with lurking dangers. The transition from intracorporeal balance to homeostasis disruption is associated with activation of inflammatory signaling pathways, which causes modulation of the immunology response. Chemotactic cytokines, signaling molecules, and extracellular vesicles act as critical mediators of inflammation and participate in intercellular communication, conditioning the immune system's proper response. Among the well-known cytokines allowing for the development and proper functioning of the immune system by mediating cell survival and cell-death-inducing signaling, the tumor necrosis factor α (TNF-α) and transforming growth factor β (TGF-β) are noteworthy. The high bloodstream concentration of those pleiotropic cytokines can be characterized by anti- and pro-inflammatory activity, considering the powerful anti-inflammatory and anti-oxidative stress capabilities of TGF-β known from the literature. Together with the chemokines, the immune system response is also influenced by biologically active chemicals, such as melatonin. The enhanced cellular communication shows the relationship between the TGF-β signaling pathway and the extracellular vesicles (EVs) secreted under the influence of melatonin. This review outlines the findings on melatonin activity on TGF-β-dependent inflammatory response regulation in cell-to-cell communication leading to secretion of the different EV populations.
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Affiliation(s)
- Klaudia Piekarska
- Department of Histology and Embryology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland
| | - Klaudia Bonowicz
- Department of Histology and Embryology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland
| | - Alina Grzanka
- Department of Histology and Embryology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland
| | - Łukasz M Jaworski
- Department of Histology and Embryology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health, Long School of Medicine, San Antonio, TX 78229, USA
| | - Andrzej T Slominski
- Department of Dermatology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Pathology and Laboratory Medicine Service, VA Medical Center, Birmingham, AL 35294, USA
| | - Kerstin Steinbrink
- Department of Dermatology, University of Münster, Von-Esmarch-Str. 58, 48149 Münster, Germany
| | - Konrad Kleszczyński
- Department of Dermatology, University of Münster, Von-Esmarch-Str. 58, 48149 Münster, Germany
| | - Maciej Gagat
- Department of Histology and Embryology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland
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10
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Rezende L, Couto NFD, Fernandes-Braga W, Epshtein Y, Alvarez-Leite JI, Levitan I, Andrade LDO. OxLDL induces membrane structure rearrangement leading to biomechanics alteration and migration deficiency in macrophage. BIOCHIMICA ET BIOPHYSICA ACTA (BBA) - BIOMEMBRANES 2022; 1864:183951. [PMID: 35504320 DOI: 10.1016/j.bbamem.2022.183951] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 11/30/2022]
Abstract
Cholesterol sequestration from plasma membrane has been shown to induce lipid packing disruption, causing actin cytoskeleton reorganization and polymerization, increasing cell stiffness and inducing lysosomal exocytosis in non-professional phagocytes. Similarly, oxidized form of low-density lipoprotein (oxLDL) has also been shown to disrupt lipid organization and packing in endothelial cells, leading to biomechanics alterations that interfere with membrane injury and repair. For macrophages, much is known about oxLDL effects in cell activation, cytokine production and foam cell formation. However, little is known about its impact in the organization of macrophage membrane structured domains and cellular mechanics, the focus of the present study. Treatment of bone marrow-derived macrophages (BMDM) with oxLDL not only altered membrane structure, and potentially the distribution of raft domains, but also induced actin rearrangement, diffuse integrin distribution and cell shrinkage, similarly to observed upon treatment of these cells with MβCD. Those alterations led to decreased migration efficiency. For both treatments, higher co-localization of actin cytoskeleton and GM1 was observed, indicating a similar mechanism of action involving raft-like domain dynamics. Lastly, like MβCD treatment, oxLDL also induced lysosomal spreading in BMDM. We propose that OxLDL induced re-organization of membrane/cytoskeleton complex in macrophages can be attributed to the insertion of oxysterols into the membrane, which lead to changes in lipid organization and disruption of membrane structure, similar to the effect of cholesterol depletion by MβCD treatment. These results indicate that oxLDL can induce physical alterations in the complex membrane/cytoskeleton of macrophages, leading to significant biomechanical changes that compromise cell behavior.
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Affiliation(s)
- Luisa Rezende
- Department of Morphology/Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Natalia Fernanda Do Couto
- Department of Morphology/Federal University of Minas Gerais, Belo Horizonte, MG, Brazil; Department of Medicine, University of Illinois at Chicago, Chicago, USA
| | - Weslley Fernandes-Braga
- Department of Biochemistry and Immunology/Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Yulia Epshtein
- Department of Medicine, University of Illinois at Chicago, Chicago, USA
| | | | - Irena Levitan
- Department of Medicine, University of Illinois at Chicago, Chicago, USA
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11
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Nkandeu DS, Basson C, Joubert AM, Serem JC, Bipath P, Nyakudya T, Hlophe Y. The involvement of a chemokine receptor antagonist CTCE-9908 and kynurenine metabolites in cancer development. Cell Biochem Funct 2022; 40:608-622. [PMID: 35789495 DOI: 10.1002/cbf.3731] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/22/2022] [Indexed: 11/06/2022]
Abstract
Cancer is the second leading cause of mortality worldwide. Skin cancer is the most common cancer in South Africa with nearly 20,000 reported cases every year and 700 deaths. If diagnosed early, the 5-year survival rate is about 90%, however, when diagnosed late, the 5-year survival rate decreases to about 20%. Melanoma is a type of skin cancer with an estimated 5-year survival rate of approximately 90%. Neuroblastoma is a paediatric cancer with a low survival rate. Sixty percent of patients with metastatic disease do not survive 5 years after diagnosis. Despite recent advances in targeted therapies, there is a crucial need to identify reliable prognostic biomarkers which will be able to contribute to the development of more precision-based chemotherapeutic strategies to prevent tumour migration and metastasis. The compound, CTCE-9908 inhibits the binding of CXC chemokine ligand 12 (CXCL12) to the CXC chemokine receptor 4 (CXCR4) receptor leading to reduced metastasis. Kynurenine metabolites are derived tryptophan, which is an essential amino acid. Kynurenine metabolites inhibit T-cell proliferation resulting in cell growth arrest. For this reason, chemokines receptors represent potential targets for the treatment of cancer growth and metastasis. In this review paper, the role of the CXCL12/CXCR4 signalling pathway in the development of cancer is highlighted together with the current available treatments involving the CTCE-9908 compound in combination with microtubule inhibitors like paclitaxel and docetaxel.
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Affiliation(s)
- Danielle Sandra Nkandeu
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Charlize Basson
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Anna Margaretha Joubert
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - June Cheptoo Serem
- Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Priyesh Bipath
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Trevor Nyakudya
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Yvette Hlophe
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
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12
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Kutikhin AG, Shishkova DK, Velikanova EA, Sinitsky MY, Sinitskaya AV, Markova VE. Endothelial Dysfunction in the Context of Blood–Brain Barrier Modeling. J EVOL BIOCHEM PHYS+ 2022; 58:781-806. [PMID: 35789679 PMCID: PMC9243926 DOI: 10.1134/s0022093022030139] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/04/2022] [Accepted: 04/05/2022] [Indexed: 01/04/2023]
Abstract
Here, we discuss pathophysiological approaches to the defining
of endothelial dysfunction criteria (i.e., endothelial activation,
impaired endothelial mechanotransduction, endothelial-to-mesenchymal
transition, reduced nitric oxide release, compromised endothelial
integrity, and loss of anti-thrombogenic properties) in different
in vitro and in vivo models. The canonical definition of endothelial
dysfunction includes insufficient production of vasodilators, pro-thrombotic
and pro-inflammatory activation of endothelial cells, and pathologically
increased endothelial permeability. Among the clinical consequences
of endothelial dysfunction are arterial hypertension, macro- and
microangiopathy, and microalbuminuria. We propose to extend the definition
of endothelial dysfunction by adding altered endothelial mechanotransduction
and endothelial-to-mesenchymal transition to its criteria. Albeit
interleukin-6, interleukin-8, and MCP-1/CCL2 dictate the pathogenic
paracrine effects of dysfunctional endothelial cells and are therefore
reliable endothelial dysfunction biomarkers in vitro, they are non-specific
for endothelial cells and cannot be used for the diagnostics of
endothelial dysfunction in vivo. Conceptual improvements in the
existing methods to model endothelial dysfunction, specifically,
in relation to the blood–brain barrier, include endothelial cell
culturing under pulsatile flow, collagen IV coating of flow chambers,
and endothelial lysate collection from the blood vessels of laboratory
animals in situ for the subsequent gene and protein expression profiling.
Combined with the simulation of paracrine effects by using conditioned
medium from dysfunctional endothelial cells, these flow-sensitive
models have a high physiological relevance, bringing the experimental
conditions to the physiological scenario.
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Affiliation(s)
- A. G. Kutikhin
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - D. K. Shishkova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - E. A. Velikanova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - M. Yu. Sinitsky
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - A. V. Sinitskaya
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - V. E. Markova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
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13
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Therapeutic Targets in Allergic Conjunctivitis. Pharmaceuticals (Basel) 2022; 15:ph15050547. [PMID: 35631374 PMCID: PMC9147625 DOI: 10.3390/ph15050547] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/18/2022] [Accepted: 04/22/2022] [Indexed: 02/02/2023] Open
Abstract
Allergic conjunctivitis (AC) is a common condition resulting from exposure to allergens such as pollen, animal dander, or mold. It is typically mediated by allergen-induced crosslinking of immunoglobulin E attached to receptors on primed conjunctival mast cells, which results in mast cell degranulation and histamine release, as well as the release of lipid mediators, cytokines, and chemokines. The clinical result is conjunctival hyperemia, tearing, intense itching, and chemosis. Refractory and chronic cases can result in ocular surface complications that may be vision threatening. Patients who experience even mild forms of this disease report an impact on their quality of life. Current treatment options range from non-pharmacologic therapies to ocular and systemic options. However, to adequately control AC, the use of multiple agents is often required. As such, a precise understanding of the immune mechanisms responsible for this ocular surface inflammation is needed to support ongoing research for potential therapeutic targets such as chemokine receptors, cytokine receptors, non-receptor tyrosine kinases, and integrins. This review utilized several published articles regarding the current therapeutic options to treat AC, as well as the pathological and immune mechanisms relevant to AC. This review will also focus on cellular and molecular targets in AC, with particular emphasis on potential therapeutic agents that can attenuate the pathology and immune mechanisms driven by cells, receptors, and molecules that participate in the immunopathogenesis and immunopathology of AC.
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14
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Chen YH, Lightman S, Eskandarpour M, Calder VL. Adhesion Molecule Targeted Therapy for Non-Infectious Uveitis. Int J Mol Sci 2022; 23:503. [PMID: 35008929 PMCID: PMC8745221 DOI: 10.3390/ijms23010503] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/08/2021] [Accepted: 12/11/2021] [Indexed: 02/01/2023] Open
Abstract
Non-infectious uveitis (NIU) is an inflammatory eye disease initiated via CD4+ T-cell activation and transmigration, resulting in focal retinal tissue damage and visual acuity disturbance. Cell adhesion molecules (CAMs) are activated during the inflammatory process to facilitate the leukocyte recruitment cascade. Our review focused on CAM-targeted therapies in experimental autoimmune uveitis (EAU) and NIU. We concluded that CAM-based therapies have demonstrated benefits for controlling EAU severity with decreases in immune cell migration, especially via ICAM-1/LFA-1 and VCAM-1/VLA-4 (integrin) pathways. P-selectin and E-selectin are more involved specifically in uveitis related to vasculitis. These therapies have potential clinical applications for the development of a more personalized and specific treatment. Localized therapies are the future direction to avoid serious systemic side effects.
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Affiliation(s)
- Yi-Hsing Chen
- UCL Institute of Ophthalmology, University College London, London EC1V 9EL, UK; (Y.-H.C.); (S.L.); (M.E.)
- Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Sue Lightman
- UCL Institute of Ophthalmology, University College London, London EC1V 9EL, UK; (Y.-H.C.); (S.L.); (M.E.)
| | - Malihe Eskandarpour
- UCL Institute of Ophthalmology, University College London, London EC1V 9EL, UK; (Y.-H.C.); (S.L.); (M.E.)
| | - Virginia L. Calder
- UCL Institute of Ophthalmology, University College London, London EC1V 9EL, UK; (Y.-H.C.); (S.L.); (M.E.)
- NIHR Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust, London EC1V 2PD, UK
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15
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van Beers JJBC, Damoiseaux JGMC. Treatment of Autoimmune Diseases with Therapeutic Antibodies: Lessons Learned from PID Patients Allow for Stratification of the Infection Risk. Methods Mol Biol 2022; 2313:27-44. [PMID: 34478130 DOI: 10.1007/978-1-0716-1450-1_2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Over the years, a wide variety of therapeutic antibodies has been successfully introduced in the autoimmunology clinic and many more are on the edge to follow. Many of these treatments address either a pathogenic circulating molecule or a cell-bound molecule. Whereas the former target results in neutralization of the soluble factor, the latter target either inhibits cellular function or induces selective cell death. If this targeted molecule or cell is part of the immune system, this therapy evokes a state of immunodeficiency. Knowing the exact function of the respective components enables the risk stratification for possible infectious complications in patients treated with biologics. Much of the understanding of the function of immune cells and their associated molecules, in relation to redundancy in the immune system, is derived from studies in knockout mice. However, as mice are not men in terms of their life-expectancy, their infection exposure, or the composition of their immune system, the most useful knowledge for estimating the consequence of therapeutic intervention on immune competence comes from monitoring patients. In the current chapter, we focus on patients with a primary immunodeficiency (PID) because they provide us with a unique perspective to estimate the redundancy of a certain genetic defect for overall immune competence. These patients have inborn errors of the immune system that, in general, are due to single gene defects. Depending on the immunological pathway that is defective, patients can present with different types of (opportunistic) infectious diseases, as well as other clinical manifestations. Based on selected examples, we focus in this chapter on finding parallels in the infectious risk of autoimmune patients treated with biologics and PID patients with a defect in the immunological pathway that is affected by the respective biologic. The goal is to learn from the (dis)similarities between both patient populations in terms of safety profiles of biologic treatments.
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Affiliation(s)
- Joyce J B C van Beers
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Jan G M C Damoiseaux
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands.
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16
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Ueno K, Otani Y, Yanagihara N, Urai M, Nagamori A, Sato-Fukushima M, Shimizu K, Saito N, Miyazaki Y. Cryptococcus gattii evades CD11b-mediated fungal recognition by coating itself with capsular polysaccharides. Eur J Immunol 2021; 51:2281-2295. [PMID: 33728652 DOI: 10.1002/eji.202049042] [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: 10/30/2020] [Revised: 01/25/2021] [Accepted: 03/10/2021] [Indexed: 12/15/2022]
Abstract
Cryptococcus gattii is a capsular pathogenic fungus causing life-threatening cryptococcosis. Although the capsular polysaccharides (CPs) of C. gattii are considered as virulence factors, the physiological significance of CP biosynthesis and of CPs themselves is not fully understood, with many conflicting data reported. First, we demonstrated that CAP gene deletant of C. gattii completely lacked capsule layer and its virulence, and that the strain was susceptible to host-related factors including oxidizing, hypoxic, and hypotrophic conditions in vitro. Extracellular CPs recovered from culture supernatant bound specifically to C. gattii acapsular strains, not to other fungi and immune cells, and rendered them the immune escape effects. In fact, dendritic cells (DCs) did not efficiently uptake the CP-treated acapsular strains, which possessed no visible capsule layer, and a decreased amount of phosphorylated proteins and cytokine levels after the stimulation. DCs recognized C. gattii acapuslar cells via an immune receptor CD11b- and Syk-related pathway; however, CD11b did not bind to CP-treated acapsular cells. These results suggested that CPs support immune evasion by coating antigens on C. gattii and blocking the interaction between CD11b and C. gattii cells. Here, we describe the importance of CPs in pathogenicity and immune evasion mechanisms of C. gattii.
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Affiliation(s)
- Keigo Ueno
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Yoshiko Otani
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan.,Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo, Japan
| | - Nao Yanagihara
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan.,Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo, Japan
| | - Makoto Urai
- Department of Chemistry for Life Sciences and Agriculture, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Akiko Nagamori
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Miyuki Sato-Fukushima
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Kiminori Shimizu
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo, Japan
| | - Noriko Saito
- Laboratory of Electron Microscopy, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Yoshitsugu Miyazaki
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
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17
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Kalm F, Mansouri L, Russom A, Lundahl J, Nopp A. Adhesion molecule cross-linking and cytokine exposure modulate IgE- and non-IgE-dependent basophil activation. Immunology 2020; 162:92-104. [PMID: 32955733 PMCID: PMC7730031 DOI: 10.1111/imm.13268] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/26/2020] [Accepted: 09/10/2020] [Indexed: 12/22/2022] Open
Abstract
Basophils are known for their role in allergic inflammation, which makes them suitable targets in allergy diagnostics such as the basophil activation test (BAT) and the microfluidic immunoaffinity basophil activation test (miBAT). Beside their role in allergy, basophils have an immune modulatory role in both innate immunity and adaptive immunity. To accomplish this mission, basophils depend on the capability to migrate from blood to extravascular tissues, which includes interactions with endothelial cells, extracellular matrix and soluble mediators. Their receptor repertoire is well known, but less is known how these receptor–ligand interactions impact the degranulation process and the responsiveness to subsequent activation. As the consequences of these interactions are crucial to fully appreciate the role of basophils in immune modulation and to enable optimization of the miBAT, we explored how basophil activation status is regulated by cytokines and cross‐linking of adhesion molecules. The expression of adhesion molecules and activation markers on basophils from healthy blood donors was analysed by flow cytometry. Cross‐linking of CD203c, CD62L, CD11b and CD49d induced a significant upregulation of CD63 and CD203c. To mimic in vivo conditions, valid also for miBAT, CD62L and CD49d were cross‐linked followed by IgE‐dependent activation (anti‐IgE), which caused a reduced CD63 expression compared with anti‐IgE activation only. IL‐3 and IL‐33 priming caused increased CD63 expression after IgE‐independent activation (fMLP). Together, our data suggest that mechanisms operational both in the microfluidic chip and in vivo during basophil adhesion may impact basophil anaphylactic and piecemeal degranulation procedures and hence their immune regulatory function.
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Affiliation(s)
- Frida Kalm
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden.,Division of Nanobiotechnology, Department of Protein Sciences, Science for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden.,Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Ladan Mansouri
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden.,Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Aman Russom
- Division of Nanobiotechnology, Department of Protein Sciences, Science for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Joachim Lundahl
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden.,Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Anna Nopp
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden.,Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
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18
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Abstract
Sepsis remains medically challenging, with high morbidity and mortality. A novel intervention is urgently needed in the absence of specific, targeted therapy. Neutrophils act as double-edged swords in sepsis; they can help to eradicate microbes, but they also contribute to tissue injury. β2 integrins are critical adhesion molecules that regulate a number of neutrophil functions. β2 integrins consist of four members, namely, αLβ2, αMβ2, αXβ2, and αDβ2. Here, we review the role of each β2 integrin in neutrophils and sepsis and consider future direction for therapeutic intervention.
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19
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Bhan C, Dash SP, Dipankar P, Kumar P, Chakraborty P, Sarangi PP. Investigation of Extracellular Matrix Protein Expression Dynamics Using Murine Models of Systemic Inflammation. Inflammation 2020; 42:2020-2031. [PMID: 31376095 DOI: 10.1007/s10753-019-01063-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Extracellular matrix (ECM) proteins form the structural support for migration of leukocytes and provide multiple signals to assist in their functions during inflammatory conditions. Presence of pro-inflammatory mediators in the tissues results in the remodelling of matrices which could modify the functions of extravasated leukocytes. Previous reports have shown changes in the expression of ECM proteins during local inflammatory responses. In this study, we have investigated the time- and tissue-specific expression profile of key ECM proteins in systemic inflammation using lipopolysaccharide (LPS)-induced endotoxemia and cecal ligation and puncture (CLP) mouse models. The results show that compared to naïve tissues, within 12 h following CLP surgery, a 20-30-fold increase was observed in the expression of collagen-IV (Col-IV) transcripts in the mesentery tissues with a 2.4-fold increase in the protein by 24 h. However, Western blot band intensities indicated that vimentin and fibrinogen were remarkably expressed in more quantity compared to Col-IV. Secondly, in CLP group of mice, fibrinogen showed 6-40-fold increase in mRNA level in various tissues with about 2-fold increase in the protein level compared to respective naïve tissues. Similar studies in the LPS-injected mice showed up to 2-3 fold increase in the expression of Col-IV, fibrinogen and vimentin at protein level in the lungs. In such animals, although similar pattern was observed for fibrinogen in kidney and liver tissues, the mesentery showed prominent changes in Col-IV and vimentin mRNA compared to CLP. Further, bioinformatics analysis showed multiple pathways which could be associated with vimentin, Col-IV and fibrinogen under inflammatory conditions both in human and mouse. The current study will help in better understanding of possible signalling from ECM proteins in inflammatory microenvironment and may contribute in development of cell adhesion-based therapeutics.
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Affiliation(s)
- Chandra Bhan
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
| | - Shiba Prasad Dash
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
| | - Pankaj Dipankar
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
| | - Puneet Kumar
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
| | - Papiya Chakraborty
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
| | - Pranita P Sarangi
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India.
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20
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Abstract
Syndecans are transmembrane proteoglycans with heparan and chondroitin sulfate chains attached to their extracellular domain. Like many proteoglycans, they interact with a large number of ligands, such as growth factors, adhesion receptors, soluble small molecules, proteinases, and other extracellular matrix proteins to initiate downstream signaling pathways. Syndecans play a major role in inflammation, mainly by regulating leukocyte extravasation and cytokine function. At the same time, syndecans can undergo cytokine mediated changes in their expression levels during inflammation. The function of syndecans during inflammation appears to depend on the stage of inflammation, sulfation of heparan/chondroitin sulfate chains, the rate of ectodomain shedding and the solubility of the ectodomains. From the current literature, it is clear that syndecans are not only involved in the initial recruitment of pro-inflammatory molecules but also in establishing a balanced progression of inflammation. This review will summarize how cell surface and soluble syndecans regulate multiple aspects of inflammation.
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Affiliation(s)
- Sandeep Gopal
- Development and Stem Cells Program, Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC, Australia
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21
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Grosche L, Mühl-Zürbes P, Ciblis B, Krawczyk A, Kuhnt C, Kamm L, Steinkasserer A, Heilingloh CS. Herpes Simplex Virus Type-2 Paralyzes the Function of Monocyte-Derived Dendritic Cells. Viruses 2020; 12:E112. [PMID: 31963276 PMCID: PMC7019625 DOI: 10.3390/v12010112] [Citation(s) in RCA: 8] [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: 12/11/2019] [Revised: 01/09/2020] [Accepted: 01/14/2020] [Indexed: 12/13/2022] Open
Abstract
Herpes simplex viruses not only infect a variety of different cell types, including dendritic cells (DCs), but also modulate important cellular functions in benefit of the virus. Given the relevance of directed immune cell migration during the initiation of potent antiviral immune responses, interference with DC migration constitutes a sophisticated strategy to hamper antiviral immunity. Notably, recent reports revealed that HSV-1 significantly inhibits DC migration in vitro. Thus, we aimed to investigate whether HSV-2 also modulates distinct hallmarks of DC biology. Here, we demonstrate that HSV-2 negatively interferes with chemokine-dependent in vitro migration capacity of mature DCs (mDCs). Interestingly, rather than mediating the reduction of the cognate chemokine receptor expression early during infection, HSV-2 rapidly induces β2 integrin (LFA-1)-mediated mDC adhesion and thereby blocks mDC migration. Mechanistically, HSV-2 triggers the proteasomal degradation of the negative regulator of β2 integrin activity, CYTIP, which causes the constitutive activation of LFA-1 and thus mDC adhesion. In conclusion, our data extend and strengthen recent findings reporting the reduction of mDC migration in the context of a herpesviral infection. We thus hypothesize that hampering antigen delivery to secondary lymphoid organs by inhibition of mDC migration is an evolutionary conserved strategy among distinct members of Herpesviridae.
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Affiliation(s)
- Linda Grosche
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91052 Erlangen, Germany
| | - Petra Mühl-Zürbes
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91052 Erlangen, Germany
| | - Barbara Ciblis
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91052 Erlangen, Germany
| | - Adalbert Krawczyk
- Department of Infectious Diseases, University Hospital Essen, University of Duisburg-Essen, D-45147 Essen, Germany
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, D-45147 Essen, Germany
| | - Christine Kuhnt
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91052 Erlangen, Germany
| | - Lisa Kamm
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91052 Erlangen, Germany
| | - Alexander Steinkasserer
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91052 Erlangen, Germany
| | - Christiane Silke Heilingloh
- Department of Immune Modulation, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91052 Erlangen, Germany
- Department of Infectious Diseases, University Hospital Essen, University of Duisburg-Essen, D-45147 Essen, Germany
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22
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Lokwani R, Wark PA, Baines KJ, Fricker M, Barker D, Simpson JL. Blood Neutrophils In COPD But Not Asthma Exhibit A Primed Phenotype With Downregulated CD62L Expression. Int J Chron Obstruct Pulmon Dis 2019; 14:2517-2525. [PMID: 31814717 PMCID: PMC6863133 DOI: 10.2147/copd.s222486] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 09/23/2019] [Indexed: 11/25/2022] Open
Abstract
Purpose To characterize neutrophils in obstructive airway disease by measuring their surface adhesion molecules and oxidative burst along with characterizing them into different subsets as per their adhesion molecule expression. Patients and methods Peripheral blood from adults with COPD (n=17), asthma (n=20), and healthy participants (n=19) was examined for expression of CD16, CD62L, CD11b, CD11c, and CD54, and analyzed by flow cytometry. For oxidative burst and CD62L shedding analysis, CD16 and CD62L stained leukocytes were loaded with Dihydrorhodamine-123 (DHR-123) and stimulated with N-Formylmethionine-leucyl-phenylalanine (fMLF). Neutrophil subsets were characterized based on CD16 and CD62L expression. Marker surface expression was recorded on CD16+ neutrophils as median fluorescence intensity (MFI). Results Neutrophil surface expression of CD62L was significantly reduced in COPD (median (IQR) MFI: 1156 (904, 1365)) compared with asthma (1865 (1157, 2408)) and healthy controls (2079 (1054, 2960)); p=0.028. COPD neutrophils also demonstrated a significant reduction in CD62L expression with and without fMLF stimulation. Asthma participants had a significantly increased proportion and number of CD62Lbright/CD16dim neutrophils (median: 5.4% and 0.14 × 109/L, respectively), in comparison with healthy (3.54% and 0.12 × 109/L, respectively); p<0.017. Conclusion Reduced CD62L expression suggests blood neutrophils have undergone priming in COPD but not in asthma, which may be the result of systemic inflammation. The increased shedding of CD62L receptor by COPD blood neutrophils suggests a high sensitivity for activation.
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Affiliation(s)
- Ravi Lokwani
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW 2308, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, New Lambton Heights, NSW 2305, Australia.,School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Peter Ab Wark
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW 2308, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, New Lambton Heights, NSW 2305, Australia.,School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Katherine J Baines
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW 2308, Australia.,School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Michael Fricker
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW 2308, Australia.,School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Daniel Barker
- School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Jodie L Simpson
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW 2308, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, New Lambton Heights, NSW 2305, Australia.,School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW 2308, Australia
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23
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Andreone S, Spadaro F, Buccione C, Mancini J, Tinari A, Sestili P, Gambardella AR, Lucarini V, Ziccheddu G, Parolini I, Zanetti C, D’Urso MT, De Ninno A, Businaro L, Afferni C, Mattei F, Schiavoni G. IL-33 Promotes CD11b/CD18-Mediated Adhesion of Eosinophils to Cancer Cells and Synapse-Polarized Degranulation Leading to Tumor Cell Killing. Cancers (Basel) 2019; 11:cancers11111664. [PMID: 31717819 PMCID: PMC6895824 DOI: 10.3390/cancers11111664] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/15/2019] [Accepted: 10/21/2019] [Indexed: 12/15/2022] Open
Abstract
Eosinophils are major effectors of Th2-related pathologies, frequently found infiltrating several human cancers. We recently showed that eosinophils play an essential role in anti-tumor responses mediated by immunotherapy with the ‘alarmin’ intereukin-33 (IL-33) in melanoma mouse models. Here, we analyzed the mechanisms by which IL-33 mediates tumor infiltration and antitumor activities of eosinophils. We show that IL-33 recruits eosinophils indirectly, via stimulation of tumor cell-derived chemokines, while it activates eosinophils directly, up-regulating CD69, the adhesion molecules ICAM-1 and CD11b/CD18, and the degranulation marker CD63. In co-culture experiments with four different tumor cell lines, IL-33-activated eosinophils established large numbers of stable cell conjugates with target tumor cells, with the polarization of eosinophil effector proteins (ECP, EPX, and granzyme-B) and CD11b/CD18 to immune synapses, resulting in efficient contact-dependent degranulation and tumor cell killing. In tumor-bearing mice, IL-33 induced substantial accumulation of degranulating eosinophils within tumor necrotic areas, indicating cytotoxic activity in vivo. Blocking of CD11b/CD18 signaling significantly reduced IL-33-activated eosinophils’ binding and subsequent killing of tumor cells, indicating a crucial role for this integrin in triggering degranulation. Our findings provide novel mechanistic insights for eosinophil-mediated anti-tumoral function driven by IL-33. Treatments enabling tumor infiltration and proper activation of eosinophils may improve therapeutic response in cancer patients.
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Affiliation(s)
- Sara Andreone
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
| | - Francesca Spadaro
- Microscopy Unit, Core Facilities, Istituto Superiore di Sanità, 00161 Rome, Italy; (F.S.); (P.S.)
| | - Carla Buccione
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
| | - Jacopo Mancini
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
| | - Antonella Tinari
- Center for Gender Medicine, Istituto Superiore di Sanità, 00161, Rome, Italy;
| | - Paola Sestili
- Microscopy Unit, Core Facilities, Istituto Superiore di Sanità, 00161 Rome, Italy; (F.S.); (P.S.)
| | - Adriana Rosa Gambardella
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
| | - Valeria Lucarini
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
| | - Giovanna Ziccheddu
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
| | - Isabella Parolini
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
| | - Cristiana Zanetti
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
| | - Maria Teresa D’Urso
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
| | - Adele De Ninno
- Institute for Photonics and Nanotechnologies, National Research Council (CNR), 00156 Rome, Italy; (A.D.N.); (L.B.)
| | - Luca Businaro
- Institute for Photonics and Nanotechnologies, National Research Council (CNR), 00156 Rome, Italy; (A.D.N.); (L.B.)
| | - Claudia Afferni
- National Center for Drug Research and Evaluation, Istituto Superiore di Sanità, 00161 Rome, Italy;
| | - Fabrizio Mattei
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
| | - Giovanna Schiavoni
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (S.A.); (C.B.); (J.M.); (A.R.G.); (V.L.); (G.Z.); (I.P.); (C.Z.); (M.T.D.); (F.M.)
- Correspondence: ; Tel.: +39-0649906099
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24
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Esmaeilzadeh P, Groth T. Switchable and Obedient Interfacial Properties That Grant New Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25637-25653. [PMID: 31283160 DOI: 10.1021/acsami.9b06253] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Toward imitating the natural smartness and responsivity of biological systems, surface interfacial properties are considered to be responsive and tunable if they show a reactive behavior to an environmental stimulus. This is still quite different from many contemporary biomaterials that lack responsiveness to interact with blood and different body tissues in a physiological manner. Meanwhile it is possible to even go one step further from responsiveness to dual-mode switchability and explore "switchable" or "reversible" responses of synthetic materials. We understand "switchable biomaterials" as materials undergoing a stepwise, structural transformation coupled with considerable changes of interfacial and other surface properties as a response to a stimulus. Therewith, a survey on stimuli-induced dynamic changes of charge, wettability, stiffness, topography, porosity, and thickness/swelling is presented here, as potentially powerful new technologies especially for future biomaterial development. Since living cells constantly sense their environment through a variety of surface receptors and other mechanisms, these obedient interfacial properties were particularly discussed regarding their advantageous multifunctionality for protein adsorption and cell adhesion signaling, which may alter in time and with environmental conditions.
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Affiliation(s)
- Pegah Esmaeilzadeh
- Biomedical Materials Group, Institute of Pharmacy , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale), Germany
- Interdisciplinary Center of Material Science , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale), Germany
| | - Thomas Groth
- Biomedical Materials Group, Institute of Pharmacy , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale), Germany
- Interdisciplinary Center of Material Science , Martin Luther University Halle-Wittenberg , Heinrich Damerow Strasse 4 , 06120 Halle (Saale), Germany
- Interdisciplinary Center of Applied Sciences , Martin Luther University Halle-Wittenberg , 06099 Halle (Saale), Germany
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25
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Edwards DN, Bix GJ. The Inflammatory Response After Ischemic Stroke: Targeting β 2 and β 1 Integrins. Front Neurosci 2019; 13:540. [PMID: 31191232 PMCID: PMC6546847 DOI: 10.3389/fnins.2019.00540] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 05/09/2019] [Indexed: 12/20/2022] Open
Abstract
Ischemic stroke is a leading cause of death and disability with limited therapeutic options. Resulting inflammatory mechanisms after reperfusion (removal of the thrombus) result in cytokine activation, calcium influx, and leukocytic infiltration to the area of ischemia. In particular, leukocytes migrate toward areas of inflammation by use of integrins, particularly integrins β1 and β2. Integrins have been shown to be necessary for leukocyte adhesion and migration, and thus are of immediate interest in many inflammatory diseases, including ischemic stroke. In this review, we identify the main integrins involved in leukocytic migration following stroke (α L β2, αDβ2, α4β1, and α5β1) and targeted clinical therapeutic interventions.
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Affiliation(s)
- Danielle N. Edwards
- Sanders–Brown Center on Aging, University of Kentucky, Lexington, KY, United States
- Department of Neuroscience, University of Kentucky, Lexington, KY, United States
| | - Gregory J. Bix
- Department of Neurology, University of Kentucky, Lexington, KY, United States
- Department of Neurosurgery, University of Kentucky, Lexington, KY, United States
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26
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Hyun YM, Choe YH, Park SA, Kim M. LFA-1 (CD11a/CD18) and Mac-1 (CD11b/CD18) distinctly regulate neutrophil extravasation through hotspots I and II. Exp Mol Med 2019; 51:1-13. [PMID: 30967528 PMCID: PMC6456621 DOI: 10.1038/s12276-019-0227-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 11/21/2018] [Accepted: 12/11/2018] [Indexed: 01/21/2023] Open
Abstract
Precise spatiotemporal regulation of leukocyte extravasation is key for generating an efficient immune response to injury or infection. The integrins LFA-1(CD11a/CD18) and Mac-1(CD11b/CD18) play overlapping roles in neutrophil migration because they bind the same as well as different ligands in response to extracellular signaling. Using two-photon intravital imaging and transmission electron microscopy, we observed the existence of preferred sites for neutrophil entrance into the endothelial cell monolayer and exit from the basement membrane and pericyte sheath during neutrophil extravasation, namely, hotspots I and II, by elucidating distinctive roles of LFA-1 and Mac-1. To penetrate the vascular endothelium, neutrophils must first penetrate the endothelial cell layer through hotspot I (i.e., the point of entry into the endothelium). Neutrophils frequently remain in the space between the endothelial cell layer and the basement membrane for a prolonged period (>20 min). Subsequently, neutrophils penetrate the basement membrane and pericyte sheath at hotspot II, which is the final stage of exiting the vascular endothelium. To further investigate the roles of LFA-1 and Mac-1, we newly generated LFA-1 FRET (CD11a-YFP/CD18-CFP) mice and Mac-1 FRET (CD11b-YFP/CD18-CFP) mice. Using both FRET mice, we were able to determine that LFA-1 and Mac-1 distinctly regulate the neutrophil extravasation cascade. Our data suggest that the vascular endothelium functions as a double-layered barrier in the steps of neutrophil extravasation. We propose that the harmonized regulation of neutrophil penetration through the endothelium via hotspots I and II may be critical for vascular homeostasis during inflammation.
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Affiliation(s)
- Young-Min Hyun
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Young Ho Choe
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Republic of Korea
- Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sang A Park
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Republic of Korea
- Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
- School of Medicine, CHA University, Seongnam, South Korea
| | - Minsoo Kim
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
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27
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Pandolfi F, Franza L, Altamura S, Mandolini C, Cianci R, Ansari A, Kurnick JT. Integrins: Integrating the Biology and Therapy of Cell-cell Interactions. Clin Ther 2017; 39:2420-2436. [PMID: 29203050 DOI: 10.1016/j.clinthera.2017.11.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/29/2017] [Accepted: 11/07/2017] [Indexed: 12/12/2022]
Abstract
PURPOSE Although the role of integrins has been described in a variety of diseases, these roles seem to be distinct. To date, no study has attempted to provide links to the various pathways by which such integrins can be involved in these diverse disease settings. The purpose of this review was to address this gap in our knowledge with the hypothesis that there is, in fact, a common pathway by which integrins may function. METHODS This article provides an in-depth perspective on the discovery, development, and design of therapeutics that modulate cellular function by targeting integrin:ligand interactions by reviewing the literature on this subject; the review included the most recent results of clinical and subclinical studies. A MEDLINE search was conducted for articles pertaining to the various issues related to integrins, and the most relevant articles are discussed (ie, not only those published in journals with a higher impact factor). FINDINGS It seems that the ligation of the integrins with their cognate ligands plays a major role in translating membrane dialogue into biological function. In addition, they also seem to play a major regulatory role that can enhance or inhibit biological function depending on the context within which such receptor:ligand interactions occur and the organ and tissues at which interactions occurs and is manipulated. Those studies that used statistical analyses have been included where appropriate. IMPLICATIONS Our findings show that anti-integrin treatment has the potential to become a valid coadjuvant in the treatment of several diseases including cancer, inflammatory diseases, HIv infection and cardiovascular diseases.
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Affiliation(s)
- Franco Pandolfi
- Institute of Internal Medicine, Catholic University, Rome, Italy.
| | - Laura Franza
- Institute of Internal Medicine, Catholic University, Rome, Italy
| | - Simona Altamura
- Institute of Internal Medicine, Catholic University, Rome, Italy
| | | | - Rossella Cianci
- Institute of Internal Medicine, Catholic University, Rome, Italy
| | - Aftab Ansari
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - James T Kurnick
- CytoCure LLC, Beverly, Massachusetts; Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
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28
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Høye AM, Erler JT. Structural ECM components in the premetastatic and metastatic niche. Am J Physiol Cell Physiol 2016; 310:C955-67. [PMID: 27053524 DOI: 10.1152/ajpcell.00326.2015] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The aim of this review is to give an overview of the extracellular matrix (ECM) components that are important for creating structural changes in the premetastatic and metastatic niche. The successful arrival and survival of cancer cells that have left the primary tumor and colonized distant sites depends on the new microenvironment they encounter. The primary tumor itself releases factors into the circulation that travel to distant organs and then initiate structural changes, both non-enzymatic and enzymatic, to create a favorable niche for the disseminating tumor cells. Therapeutic strategies aimed at targeting cell-ECM interactions may well be one of the best viable approaches to combat metastasis and thus improve patient care.
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Affiliation(s)
- Anette M Høye
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Janine T Erler
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
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29
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Schmidt EP, Kuebler WM, Lee WL, Downey GP. Adhesion Molecules: Master Controllers of the Circulatory System. Compr Physiol 2016; 6:945-73. [PMID: 27065171 DOI: 10.1002/cphy.c150020] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This manuscript will review our current understanding of cellular adhesion molecules (CAMs) relevant to the circulatory system, their physiological role in control of vascular homeostasis, innate and adaptive immune responses, and their importance in pathophysiological (disease) processes such as acute lung injury, atherosclerosis, and pulmonary hypertension. This is a complex and rapidly changing area of research that is incompletely understood. By design, we will begin with a brief overview of the structure and classification of the major groups of adhesion molecules and their physiological functions including cellular adhesion and signaling. The role of specific CAMs in the process of platelet aggregation and hemostasis and leukocyte adhesion and transendothelial migration will be reviewed as examples of the complex and cooperative interplay between CAMs during physiological and pathophysiological processes. The role of the endothelial glycocalyx and the glycobiology of this complex system related to inflammatory states such as sepsis will be reviewed. We will then focus on the role of adhesion molecules in the pathogenesis of specific disease processes involving the lungs and cardiovascular system. The potential of targeting adhesion molecules in the treatment of immune and inflammatory diseases will be highlighted in the relevant sections throughout the manuscript.
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Affiliation(s)
- Eric P Schmidt
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Wolfgang M Kuebler
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
- Departments of Surgery and Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Warren L Lee
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
- Division of Respirology and the Interdepartmental Division of Critical Care Medicine, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Gregory P Downey
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Aurora, Colorado, USA
- Division of Pulmonary, Critical Care, and Sleep Medicine, Departments of Medicine, Pediatrics, and Biomedical Research, National Jewish Health, Denver, Colorado, USA
- Departments of Medicine, and Immunology and Microbiology, University of Colorado, Aurora, Colorado, USA
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30
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Lim K, Hyun YM, Lambert-Emo K, Topham DJ, Kim M. Visualization of integrin Mac-1 in vivo. J Immunol Methods 2015; 426:120-7. [PMID: 26342259 DOI: 10.1016/j.jim.2015.08.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 08/19/2015] [Accepted: 08/25/2015] [Indexed: 01/13/2023]
Abstract
β2 integrins play critical roles in migration of immune cells and in the interaction with other cells, pathogens, and the extracellular matrix. Among the β2 integrins, Mac-1 (Macrophage antigen-1), composed of CD11b and CD18, is mainly expressed in innate immune cells and plays a major role in cell migration and trafficking. In order to image Mac-1-expressing cells both in live cells and mouse, we generated a knock-in (KI) mouse strain expressing CD11b conjugated with monomeric yellow fluorescent protein (mYFP). Expression of CD11b-mYFP protein was confirmed by Western blot and silver staining of CD11b-immunoprecipitates and total cell lysates from the mouse splenocytes. Mac-1-mediated functions of the KI neutrophils were comparable with those in WT cells. The fluorescence intensity of CD11b-mYFP was sufficient to image CD11b expressing cells in live mice using intravital two-photon microscopy. In vitro, dynamic changes in the intracellular localization of CD11b molecules could be measured by epifluorescent microscopy. Finally, CD11b-expressing immune cells from tissue were easily detected by flow cytometry without anti-CD11b antibody staining.
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Affiliation(s)
- Kihong Lim
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA.
| | - Young-Min Hyun
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
| | - Kris Lambert-Emo
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
| | - David J Topham
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
| | - Minsoo Kim
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA.
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31
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Tolomelli A, Baiula M, Viola A, Ferrazzano L, Gentilucci L, Dattoli S, Spampinato S, Juaristi E, Escudero M. Dehydro-β-proline Containing α4β1 Integrin Antagonists: Stereochemical Recognition in Ligand-Receptor Interplay. ACS Med Chem Lett 2015; 6:701-6. [PMID: 26101577 PMCID: PMC4468404 DOI: 10.1021/acsmedchemlett.5b00125] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 05/05/2015] [Indexed: 01/10/2023] Open
Abstract
A novel class of dehydro-β-proline-containing peptidomimetics, designed to be effective as α4β1 integrin ligands, has been developed on the basis of the fundamental requirements for the interactions of these transmembrane receptors with bioactive ligands. Dehydro-β-proline ring has been synthesized through an original pathway, involving ring closing metathesis of a diallylamino derivative. The synthesized products showed to be effective and selective as α4β1 integrin antagonists and displayed IC50 values in the nanomolar range in cell adhesion inhibition assays and in VCAM-1-induced phosphorylation of extracellular-signal-regulated kinases. Significant activity was observed also toward the homologous integrin α4β7, while they did not display any activity toward selected members of β1, β2, and β3 families. A strong dependence on the stereochemistry of the heterocyclic central core could be observed. The great importance of α4β1 integrin in chronic inflammatory and autoimmune diseases suggests a possible exploitation of these ligands as lead compounds for therapeutic tools development.
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Affiliation(s)
- Alessandra Tolomelli
- Department of Chemistry “G. Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Monica Baiula
- Department of Pharmacy
and Biotechnology, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Angelo Viola
- Department of Chemistry “G. Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Lucia Ferrazzano
- Department of Chemistry “G. Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Luca Gentilucci
- Department of Chemistry “G. Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Samantha
Deianira Dattoli
- Department of Pharmacy
and Biotechnology, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Santi Spampinato
- Department of Pharmacy
and Biotechnology, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Eusebio Juaristi
- Centro de Investigación y de Estudios Avanzados del Instituto
Politécnico Nacional, Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco 07360, México
| | - Margarita Escudero
- Centro de Investigación y de Estudios Avanzados del Instituto
Politécnico Nacional, Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco 07360, México
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32
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Dominguez GA, Hammer DA. Effect of adhesion and chemokine presentation on T-lymphocyte haptokinesis. Integr Biol (Camb) 2015; 6:862-73. [PMID: 25012074 DOI: 10.1039/c4ib00094c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Motility is critical for the function of T-lymphocytes. Motility in T-lymphocytes is driven by the occupancy of chemokine receptors by chemokines, and modulated by adhesive interactions. However, it is not well understood how the combination of adhesion and chemokine binding affects T-lymphocyte migration. We used microcontact printing on polymeric substrates to measure how lymphocyte migration is quantitatively controlled by adhesion and chemokine ligation. Focusing only on random motion, we found that T-lymphocytes exhibit biphasic motility in response to the substrate concentration of either ICAM-1 or VCAM-1, and generally display more active motion on ICAM-1 surfaces. Furthermore, we examined how the combination of the homeostatic chemokines CCL19 and CCL21 contribute to motility. By themselves, CCL19 and CCL21, ligands for CCR7, elicit biphasic motility, but their combination synergistically increases CCR7 mediated chemokinesis on ICAM-1. By presenting CCL21 with ICAM-1 on the surface with soluble CCL19, we observed random motion that is greater than what is observed with soluble chemokines alone. These data suggest that ICAM-1 has a greater contribution to motility than VCAM-1 and that both adhesive interactions and chemokine ligation work in concert to control T-lymphocyte motility.
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Affiliation(s)
- George A Dominguez
- Department of Bioengineering, University of Pennsylvania, 210 S. 33rd St, Philadelphia, PA 19104, USA
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33
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Dominguez GA, Anderson NR, Hammer DA. The direction of migration of T-lymphocytes under flow depends upon which adhesion receptors are engaged. Integr Biol (Camb) 2015; 7:345-55. [PMID: 25674729 DOI: 10.1039/c4ib00201f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
T-lymphocyte migration is important for homing, cell trafficking, and immune surveillance. T-lymphocytes express lymphocyte function-associated antigen-1 (LFA-1; αLβ2) and very late antigen-4 (VLA-4; α4β1), which bind to their cognate ligands, intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1). These adhesive interactions provide T-lymphocytes with the ability to withstand hemodynamic shear forces to facilitate adhesion and migration along the blood endothelium. Recently, it has been shown that T-lymphocytes will crawl upstream against the direction of flow on surfaces functionalized with ICAM-1. Here, we have investigated whether the identity of the receptor and the magnitude of its engagement affects the direction of T-lymphocyte migration under flow. We used microcontact printed ICAM-1 and VCAM-1 PDMS surfaces on which density and type of adhesion molecule can be tightly controlled and non-specific adhesion adequately blocked. Using a laminar flow chamber, we demonstrate that T-lymphocytes migrate either upstream or downstream dependent upon ligand type, ligand concentration and shear rate. T-lymphocytes were found to migrate upstream on ICAM-1 but downstream on VCAM-1 surfaces - a behavior unique to T-lymphocytes. By varying concentrations of ICAM-1 and VCAM-1, directed migration under flow was observed to be dependent upon the type and concentration of ligand. As shear rates increase, T-lymphocytes favor upstream migration when any ICAM-1 is present, even in the presence of substantial amounts of VCAM-1. Furthermore, a loss of cytoskeletal polarity was observed upon introduction of fluid flow with reorganization that is dependent upon ligand presentation. These results indicate that T-lymphocytes exhibit two different modes of motility - upstream or downstream - under fluid flow that depends on ligand composition and the shear rate.
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Affiliation(s)
- George A Dominguez
- Department of Bioengineering, University of Pennsylvania, 210 S. 33rd St, Philadelphia, PA 19104, USA.
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Díaz-González F, Sánchez-Madrid F. NSAIDs: learning new tricks from old drugs. Eur J Immunol 2015; 45:679-86. [PMID: 25523026 DOI: 10.1002/eji.201445222] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 12/07/2014] [Accepted: 12/16/2014] [Indexed: 01/04/2023]
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) comprise a heterogeneous group of pharmacological agents used for the symptomatic treatment of fever, pain, and inflammation. Although the main mechanism of action of NSAIDs consists of inhibiting prostaglandin synthesis by blocking the enzyme cyclooxygenase (COX), clinical, and experimental data strongly indicate the existence of additional mechanisms. Some of the COX-independent effects are related to the ability of NSAIDs to penetrate biological membranes and disrupt important molecular interactions necessary for a wide array of cellular functions, including cell adhesion. These effects, in particular those that interfere with L-selectin function in neutrophils during the inflammatory response, may contribute to the anti-inflammatory properties that NSAIDs exert in vivo. Recent contributions in this field have shown that the anti-L-selectin effect of NSAIDs is related to the NADPH-oxidase-dependent generation of superoxide anion at the plasma membrane. These findings might represent a novel approach for developing new and effective anti-inflammatory compounds with a better safety profile than the currently available NSAIDs.
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Affiliation(s)
- Federico Díaz-González
- Department of Internal Medicine, Universidad de La Laguna, Rheumatology Service, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
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Chigaev A, Smagley Y, Haynes MK, Ursu O, Bologa CG, Halip L, Oprea T, Waller A, Carter MB, Zhang Y, Wang W, Buranda T, Sklar LA. FRET detection of lymphocyte function-associated antigen-1 conformational extension. Mol Biol Cell 2014; 26:43-54. [PMID: 25378583 PMCID: PMC4279228 DOI: 10.1091/mbc.e14-06-1050] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Lymphocyte function–associated antigen 1 (LFA-1) and its ligands are essential for immune cell interactions. LFA-1 is regulated through conformational changes. The relationship between molecular conformation and function is unclear. Förster resonance energy transfer is used to assess LFA-1 conformation under real-time signaling conditions. Lymphocyte function–associated antigen 1 (LFA-1, CD11a/CD18, αLβ2-integrin) and its ligands are essential for adhesion between T-cells and antigen-presenting cells, formation of the immunological synapse, and other immune cell interactions. LFA-1 function is regulated through conformational changes that include the modulation of ligand binding affinity and molecular extension. However, the relationship between molecular conformation and function is unclear. Here fluorescence resonance energy transfer (FRET) with new LFA-1–specific fluorescent probes showed that triggering of the pathway used for T-cell activation induced rapid unquenching of the FRET signal consistent with extension of the molecule. Analysis of the FRET quenching at rest revealed an unexpected result that can be interpreted as a previously unknown LFA-1 conformation.
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Affiliation(s)
| | | | - Mark K Haynes
- University of New Mexico Center for Molecular Discovery, and
| | - Oleg Ursu
- University of New Mexico Center for Molecular Discovery, and Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131
| | - Cristian G Bologa
- University of New Mexico Center for Molecular Discovery, and Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131
| | - Liliana Halip
- Department of Computational Chemistry, Institute of Chemistry, Romanian Academy, Timisoara 300223, Romania
| | - Tudor Oprea
- University of New Mexico Center for Molecular Discovery, and Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131
| | - Anna Waller
- University of New Mexico Center for Molecular Discovery, and
| | - Mark B Carter
- University of New Mexico Center for Molecular Discovery, and
| | - Yinan Zhang
- Department of Pharmaceutical Science, College of Pharmacy, University of Kentucky, Lexington, KY 40506
| | - Wei Wang
- Department of Chemistry, University of New Mexico, Albuquerque, NM 87131
| | | | - Larry A Sklar
- Department of Pathology and Cancer Center, University of New Mexico Center for Molecular Discovery, and
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Molecular mechanisms and functional implications of polarized actin remodeling at the T cell immunological synapse. Cell Mol Life Sci 2014; 72:537-556. [PMID: 25355055 DOI: 10.1007/s00018-014-1760-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 09/22/2014] [Accepted: 10/13/2014] [Indexed: 02/05/2023]
Abstract
Transient,specialized cell-cell interactions play a central role in leukocyte function by enabling specific intercellular communication in the context of a highly dynamic systems level response. The dramatic structural changes required for the formation of these contacts are driven by rapid and precise cytoskeletal remodeling events. In recent years, the immunological synapse that forms between a T lymphocyte and its antigen-presenting target cell has emerged as an important model system for understanding immune cell interactions. In this review, we discuss how regulators of the cortical actin cytoskeleton control synaptic architecture and in this way specify T cell function.
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Hoonhorst SJM, Timens W, Koenderman L, Lo Tam Loi AT, Lammers JWJ, Boezen HM, van Oosterhout AJM, Postma DS, Ten Hacken NHT. Increased activation of blood neutrophils after cigarette smoking in young individuals susceptible to COPD. Respir Res 2014; 15:121. [PMID: 25301367 PMCID: PMC4203909 DOI: 10.1186/s12931-014-0121-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 09/30/2014] [Indexed: 11/10/2022] Open
Abstract
Background Cigarette smoking is the most important risk factor for Chronic Obstructive Pulmonary Disease (COPD). Only a subgroup of smokers develops COPD and it is unclear why these individuals are more susceptible to the detrimental effects of cigarette smoking. The risk to develop COPD is known to be higher in individuals with familial aggregation of COPD. This study aimed to investigate if acute systemic and local immune responses to cigarette smoke differentiate between individuals susceptible or non-susceptible to develop COPD, both at young (18-40 years) and old (40-75 years) age. Methods All participants smoked three cigarettes in one hour. Changes in inflammatory markers in peripheral blood (at 0 and 3 hours) and in bronchial biopsies (at 0 and 24 hours) were investigated. Acute effects of smoking were analyzed within and between susceptible and non-susceptible individuals, and by multiple regression analysis. Results Young susceptible individuals showed significantly higher increases in the expression of FcγRII (CD32) in its active forms (A17 and A27) on neutrophils after smoking (p = 0.016 and 0.028 respectively), independently of age, smoking status and expression of the respective markers at baseline. Smoking had no significant effect on mediators in blood or inflammatory cell counts in bronchial biopsies. In the old group, acute effects of smoking were comparable between healthy controls and COPD patients. Conclusions We show for the first time that COPD susceptibility at young age associates with an increased systemic innate immune response to cigarette smoking. This suggests a role of systemic inflammation in the early induction phase of COPD. Trial registration Clinicaltrials.gov: NCT00807469 Electronic supplementary material The online version of this article (doi:10.1186/s12931-014-0121-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Susan J M Hoonhorst
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands. .,GRIAC research institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Wim Timens
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands. .,Department of Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Leo Koenderman
- Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Adèle T Lo Tam Loi
- Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Jan-Willem J Lammers
- Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - H Marike Boezen
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands. .,Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Antoon J M van Oosterhout
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands. .,Lab of Allergy and Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Dirkje S Postma
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands. .,GRIAC research institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Nick H T Ten Hacken
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands. .,GRIAC research institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
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Ulivieri C, Baldari CT. T-cell-based immunotherapy of autoimmune diseases. Expert Rev Vaccines 2014; 12:297-310. [DOI: 10.1586/erv.12.146] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Sellner J, Koczi W, Harrer A, Oppermann K, Obregon-Castrillo E, Pilz G, Wipfler P, Afazel S, Haschke-Becher E, Trinka E, Kraus J. Glatiramer acetate attenuates the pro-migratory profile of adhesion molecules on various immune cell subsets in multiple sclerosis. Clin Exp Immunol 2013; 173:381-9. [PMID: 23611040 DOI: 10.1111/cei.12125] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2013] [Indexed: 01/01/2023] Open
Abstract
An altered expression pattern of adhesion molecules (AM) on the surface of immune cells is a premise for their extravasation into the central nervous system (CNS) and the formation of acute brain lesions in multiple sclerosis (MS). We evaluated the impact of glatiramer acetate (GA) on cell-bound and soluble AM in the peripheral blood of patients with relapsing-remitting MS (RRMS). Fifteen patients treated de novo with GA were studied on four occasions over a period of 12 months. Surface levels of intracellular cell adhesion molecule (ICAM)-1, ICAM-3, lymphocyte function-associated antigen (LFA)-1 and very late activation antigen (VLA)-4 were assessed in T cells (CD3(+) CD8(+) , CD3(+) CD4(+) ), B cells, natural killer (NK) cells, natural killer T cells (NK T) and monocytes by five-colour flow cytometry. Soluble E-selectin, ICAM-1, ICAM-3, platelet endothelial cell adhesion molecule (PECAM)-1, P-selectin and vascular cell adhesion molecule (VCAM)-1 were determined with a fluorescent bead-based immunoassay. The pro-migratory pattern in RRMS was verified by comparison with healthy controls and was characterized by up-regulation of LFA-1 (CD3(+) CD4(+) T cells, B cells), VLA-4 (CD3(+) CD8(+) T cells, NK cells), ICAM-1 (B cells) and ICAM-3 (NK cells). Effects of GA treatment were most pronounced after 6 months and included attenuated levels of LFA-1 (CD3(+) CD4(+) ) and VLA-4 (CD3(+) CD4(+) , CD3(+) CD8(+) , NK, NK T, monocytes). Further effects included lowering of ICAM-1 and ICAM-3 levels in almost all immune cell subsets. Soluble AM levels in RRMS did not differ from healthy controls and remained unaltered after GA treatment. The deregulated pro-migratory expression profile of cell-bound AM is altered by GA treatment. While this alteration may contribute to the beneficial action of the drug, the protracted development and unselective changes indicate more secondary immune regulatory phenomena related to these effects.
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Affiliation(s)
- J Sellner
- Department of Neurology, Paracelsus Medical University, Salzburg, Austria.
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Complement modulates the cutaneous microbiome and inflammatory milieu. Proc Natl Acad Sci U S A 2013; 110:15061-6. [PMID: 23980152 DOI: 10.1073/pnas.1307855110] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The skin is colonized by a plethora of microbes that include commensals and potential pathogens, but it is currently unknown how cutaneous host immune mechanisms influence the composition, diversity, and quantity of the skin microbiota. Here we reveal an interactive role for complement in cutaneous host-microbiome interactions. Inhibiting signaling of the complement component C5a receptor (C5aR) altered the composition and diversity of the skin microbiota as revealed by deep sequencing of the bacterial 16S rRNA gene. In parallel, we demonstrate that C5aR inhibition results in down-regulation of genes encoding cutaneous antimicrobial peptides, pattern recognition receptors, and proinflammatory mediators. Immunohistochemistry of inflammatory cell infiltrates in the skin showed reduced numbers of macrophages and lymphocytes with C5aR inhibition. Further, comparing cutaneous gene expression in germ-free mice vs. conventionally raised mice suggests that the commensal microbiota regulates expression of complement genes in the skin. These findings demonstrate a component of host immunity that impacts colonization of the skin by the commensal microbiota and vice versa, a critical step toward understanding host-microbe immune mutualism of the skin and its implications for health and disease. Additionally, we reveal a role for complement in homeostatic host-microbiome interactions of the skin.
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Huse M, Catherine Milanoski S, Abeyweera TP. Building tolerance by dismantling synapses: inhibitory receptor signaling in natural killer cells. Immunol Rev 2013; 251:143-53. [PMID: 23278746 DOI: 10.1111/imr.12014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Cell surface receptors bearing immunotyrosine-based inhibitory motifs (ITIMs) maintain natural killer (NK) cell tolerance to normal host tissues. These receptors are difficult to analyze mechanistically because they block activating responses in a rapid and comprehensive manner. The advent of high-resolution single cell imaging techniques has enabled investigators to explore the cell biological basis of the inhibitory response. Recent studies using these approaches indicate that ITIM-containing receptors function at least in part by structurally undermining the immunological synapse between the NK cell and its target. In this review, we discuss these new advances and how they might relate to what is known about the biochemistry of inhibitory signaling in NK cells and other cell types.
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Affiliation(s)
- Morgan Huse
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
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Goswami S. Importance of integrin receptors in the field of pharmaceutical & medical science. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/abc.2013.32028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Herrera-García A, Domínguez-Luis M, Arce-Franco M, López-Fernández J, Feria M, Barreiro O, Sánchez-Madrid F, Díaz-González F. In vivo modulation of the inflammatory response by nonsteroidal antiinflammatory drug-related compounds that trigger L-selectin shedding. Eur J Immunol 2012; 43:55-64. [PMID: 22975861 DOI: 10.1002/eji.201242805] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Revised: 08/12/2012] [Accepted: 09/10/2012] [Indexed: 01/04/2023]
Abstract
Diphenylamine-based nonsteroidal antiinflammatory drugs (NSAIDs) are able to cause in vitro the shedding of L-selectin. The aim of this work was to determine the physio-logic relevance of L-selectin shedding in the antiinflammatory effect exerted by NSAIDs in vivo. Chemical compounds structurally related to NSAIDs - including diphenyl-amine, N-phenylanthranilic acid (N-Ph), diphenylacetic acid - as well as the traditional NSAID indomethacin were studied using the zymosan air-pouch mouse model. Animals intramuscularly pretreated with indomethacin or N-Ph, but not with diphenyl-amine or diphenylacetic acid, showed a significant dose-dependent reduction in the number of neutrophils compared with untreated animals (N-Ph, IC50 = 6.7 mg/kg). Except for indomethacin, none of these compounds caused any significant reduction in cyclooxygenase-1 activity in vivo. In flow chamber experiments, N-Ph reduced the capability of human neutrophils to pass across the endothelial barrier by interfering with leukocyte rolling step on HUVEC. N-Ph, but not diphenylacetic acid, induced activation-independent L-selectin shedding in mouse neutrophils. Interestingly, N-Ph exerted an antiinflammatory effect similar to that of the anti-L-selectin blocking antibody Mel-14, although no additive action was observed when both compounds were combined. These data suggest that the L-selectin shedding induced by NSAIDs may be involved in the antiinflammatory action exerted by these compounds in clinical settings.
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Affiliation(s)
- Ada Herrera-García
- Servicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain
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Weeks S, Kulkarni A, Smith H, Whittall C, Yang Y, Middleton J. The effects of chemokine, adhesion and extracellular matrix molecules on binding of mesenchymal stromal cells to poly(l-lactic acid). Cytotherapy 2012; 14:1080-8. [PMID: 22809223 DOI: 10.3109/14653249.2012.700704] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AIMS Mesenchymal stromal cells (MSC) are pluripotent adult stem cells capable of osteogenesis and chondrogenesis to form bone and cartilage. This characteristic gives them the potential for bone and cartilage regeneration. Synthetic polymers have been studied to examine whether they could be used as a scaffold for tissue engineering. In the current study a two-dimensional (2-D) poly(l-lactic acid) (PLLA) scaffold was treated with chemokine, adhesion and extracellular matrix molecules with the aim of using biologic molecules to improve the attachment of human MSC. METHODS MSC were isolated from human bone marrow and applied to a 2-D PLLA scaffold. Chemokines ligand (CXCL12 and CXCL13), adhesion molecules [P-selectin, vascular cell adhesion molecule (VCAM)-1 and heparin] and extracellular matrix molecules (fibronectin and type IV collagen) were coated on the scaffold and their effects on the number of MSC that adhered were recorded. RESULTS When used alone CXCL12 and CXCL13 enhanced MSC adhesion, as did VCAM-1, P-selectin, fibronectin and collagen, but not heparin. The effects of VCAM-1, P-selectin and heparin were enhanced by the addition of CXCL12. Incubation of MSC with antibodies to integrins α4 and α5β1 inhibited their adhesion to VCAM-1 and fibronectin-treated PLLA respectively, suggesting that these integrins were involved in the MSC interactions. CONCLUSIONS The use of certain chemokines and adhesion and extracellular matrix molecules, alone or in combination, is beneficial for the attachment of MSC to PLLA, and may be helpful as natural molecules in scaffolds for regenerative medicine.
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Affiliation(s)
- Sylvia Weeks
- Leopold Muller Arthritis Research Centre, Institute for Science and Technology in Medicine, Medical School, Keele University, RJAH Orthopaedic Hospital, Oswestry, UK
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Abstract
BACKGROUND The process of extravasation of leucocytes from the vasculature into an infected, inflamed or injured tissue, designated the leucocyte adhesion cascade, is a major process in innate and adaptive immunity. In every immune process, both agonists and inhibitors, that is, positive and negative regulators, exist. MATERIALS AND METHODS It was only recently that endogenous inhibitors of the leucocyte adhesion cascade were identified, whereas many selectin, integrin and immunoglobulin superfamily adhesion receptors as well as chemokines and chemokine receptors promoting leucocyte recruitment have been described over the last three decades. Endogenous negative regulators include for instance pentraxin-3 (PTX-3) that blocks selectin-dependent leucocyte rolling, or the endothelium-derived developmental endothelial locus-1 (Del-1) that antagonizes beta2-integrin-mediated firm adhesion of leucocytes to the endothelium. CONCLUSIONS As leucocyte infiltration is a major therapeutic target in inflammatory and autoimmune disease, it becomes obvious that such endogenous anti-adhesive and anti-inflammatory agents may represent an attractive novel therapeutic platform for inflammatory and immune disorders. This review focuses on these novel endogenous inhibitors of leucocyte recruitment.
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Affiliation(s)
- Triantafyllos Chavakis
- Division of Vascular Inflammation, Diabetes and Kidney, Department of Medicine and Institute of Physiology, University Dresden, Dresden, Germany.
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Chigaev A, Smagley Y, Zhang Y, Waller A, Haynes MK, Amit O, Wang W, Larson RS, Sklar LA. Real-time analysis of the inside-out regulation of lymphocyte function-associated antigen-1 revealed similarities to and differences from very late antigen-4. J Biol Chem 2011; 286:20375-86. [PMID: 21515675 PMCID: PMC3121518 DOI: 10.1074/jbc.m110.206185] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Ten years ago, we introduced a fluorescent probe that shed light on the inside-out regulation of one of the major leukocyte integrins, very late antigen-4 (VLA-4, CD49d/CD29). Here we describe the regulation of another leukocyte integrin, lymphocyte function-associated antigen-1 (LFA-1, CD11a/CD18) using a novel small fluorescent probe in real time on live cells. We found that multiple signaling mechanisms regulate LFA-1 conformation in a manner analogous to VLA-4. LFA-1 can be rapidly activated by Gαi-coupled G protein-coupled receptors (GPCRs) and deactivated by Gαs-coupled GPCRs. The effects of Gαs-coupled GPCR agonists can be reversed in real time by receptor-specific antagonists. The specificity of the fluorescent probe binding has been assessed in a competition assay using the natural LFA-1 ligand ICAM-1 and the LFA-1-specific α I allosteric antagonist BIRT0377. Similar to VLA-4 integrin, modulation of the ligand dissociation rate can be observed for different LFA-1 affinity states. However, we also found a striking difference in the binding of the small fluorescent ligand. In the absence of inside-out activation ligand, binding to LFA-1 is extremely slow, at least 10 times slower than expected for diffusion-limited binding. This implies that an additional structural mechanism prevents ligand binding to inactive LFA-1. We propose that such a mechanism explains the inability of LFA-1 to support cell rolling, where the absence of its rapid engagement by a counterstructure in the inactive state leads to a requirement for a selectin-mediated rolling step.
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Affiliation(s)
- Alexandre Chigaev
- Department of Pathology and Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, New Mexico 87131, USA.
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Todd RF. Mary Allen Engle Award: The glue of life--a career retrospective. TRANSACTIONS OF THE AMERICAN CLINICAL AND CLIMATOLOGICAL ASSOCIATION 2011; 122:138-149. [PMID: 21686217 PMCID: PMC3116342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The author was privileged to be an early contributor to the concept that cell adhesion molecules, the leukocyte (β2) integrins, play a pivotal role in the acute inflammatory process. For the author, this began with the development of a monoclonal antibody (anti-Mo1) that identified a differentiation antigen on the surface of human myeloid cells (including neutrophils, monocytes, and natural killer (NK) cells). Serendipitously, it was discovered that the Mo1 antigen was the heterodimeric glycoprotein (gp155,95) absent from the surface of neutrophils isolated from patients with adhesion defects in vitro and a syndrome characterized by chronic, life-threatening infections in vivo (a syndrome now termed leukocyte adhesion deficiency, type 1) (LAD-1). Collaborative efforts with other investigators (including members of the ACCA) revealed that patients with LAD-1 exhibited genetic mutations on chromosome 21 resulting in absent or diminished expression of a class of 4 surface adhesion molecules (now termed CD11a/CD18, CD11b/CD18, CD11c/CD18, and CD11d/CD18) known as the leukocyte or β2 family of integrins. Knowledge of the role of the β2 integrins in the acute inflammatory response led to the development of effective gene therapy strategies to treat LAD-1 in preclinical animal models and to the comprehensive testing of anti-integrin antibodies as anti-inflammatory agents to prevent organ damage as a complication of acute inflammation. This retrospective provides one illustration of the potential of bench-to-bedside research to generate new knowledge of clinical significance.
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Affiliation(s)
- Robert F Todd
- The Margaret M. and Albert B. Alkek Department of Medicine, 1709 Dryden Road, Suite 500, Houston, TX 77030, USA.
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Efalizumab modulates T cell function both in vivo and in vitro. J Dermatol Sci 2010; 60:159-66. [DOI: 10.1016/j.jdermsci.2010.10.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 09/30/2010] [Accepted: 10/01/2010] [Indexed: 01/13/2023]
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Abstract
The migration of T lymphocytes involves the adhesive interaction of cell surface integrins with ligands expressed on other cells or with extracellular matrix proteins. The precise spatiotemporal activation of integrins from a low affinity state to a high affinity state at the cell leading edge is important for T lymphocyte migration 1. Likewise, retraction of the cell trailing edge, or uropod, is a necessary step in maintaining persistent integrin-dependent T lymphocyte motility 2. Many therapeutic approaches to autoimmune or inflammatory diseases target integrins as a means to inhibit the excessive recruitment and migration of leukocytes 3. To study the molecular events that regulate human T lymphocyte migration, we have utilized an in vitro system to analyze cell migration on a two-dimensional substrate that mimics the environment that a T lymphocyte encounters during recruitment from the vasculature. T lymphocytes are first isolated from human donors and are then stimulated and cultured for seven to ten days. During the assay, T lymphocytes are allowed to adhere and migrate on a substrate coated with intercellular adhesion molecule-1 (ICAM-1), a ligand for integrin LFA-1, and stromal cell-derived factor-1 (SDF-1). Our data show that T lymphocytes exhibit a migratory velocity of ~15 μm/min. T lymphocyte migration can be inhibited by integrin blockade 1 or by inhibitors of the cellular actomyosin machinery that regulates cell migration 2.
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Affiliation(s)
- Craig T Lefort
- Center for Vaccine Biology and Immunology, University of Rochester, USA
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Lord EM. Immunology at the university of Rochester. Immunol Res 2009; 45:97-9. [PMID: 19240990 DOI: 10.1007/s12026-009-8099-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Edith M Lord
- Department of Microbiology & Immunology, University of Rochester Medical Center, NY 14642, USA.
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