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Kugelmann D, Anders M, Sigmund AM, Egu DT, Eichkorn RA, Yazdi AS, Sárdy M, Hertl M, Didona D, Hashimoto T, Waschke J. Role of ADAM10 and ADAM17 in the Regulation of Keratinocyte Adhesion in Pemphigus Vulgaris. Front Immunol 2022; 13:884248. [PMID: 35844545 PMCID: PMC9279611 DOI: 10.3389/fimmu.2022.884248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/26/2022] [Indexed: 11/13/2022] Open
Abstract
The severe autoimmune blistering disease Pemphigus vulgaris (PV) is mainly caused by autoantibodies (IgG) against desmoglein (Dsg) 3 and Dsg1. The mechanisms leading to the development of blisters are not fully understood, but intracellular signaling seems to play an important role. Sheddases ADAM10 and ADAM17 are involved in the turnover of the desmosomal cadherin Dsg2 and ADAM10 has been shown to contribute to acantholysis in a murine pemphigus model. In the present study, we further examined the role of ADAM10 and ADAM17 both in keratinocyte adhesion and in the pathogenesis of PV. First, we found that inhibition of ADAM10 enhanced adhesion of primary human keratinocytes but not of immortalized keratinocytes. In dissociation assays, inhibition of ADAM10 shifted keratinocyte adhesion towards a hyperadhesive state. However, ADAM inhibition did neither modulate protein levels of Dsg1 and Dsg3 nor activation of EGFR at Y1068 and Y845. In primary human keratinocytes, inhibition of ADAM10, but not ADAM17, reduced loss of cell adhesion and fragmentation of Dsg1 and Dsg3 immunostaining in response to a PV1-IgG from a mucocutaneous PV patient. Similarly, inhibition of ADAM10 in dissociation assay decreased fragmentation of primary keratinocytes induced by a monoclonal antibody against Dsg3 and by PV-IgG from two other patients both suffering from mucosal PV. However, such protective effect was not observed in both cultured cells and ex vivo disease models, when another mucocutaneous PV4-IgG containing more Dsg1 autoantibodies was used. Taken together, ADAM10 modulates both hyperadhesion and PV-IgG-induced loss of cell adhesion dependent on the autoantibody profile.
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Affiliation(s)
- Daniela Kugelmann
- Chair of Vegetative Anatomy, Faculty of Medicine, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Maresa Anders
- Chair of Vegetative Anatomy, Faculty of Medicine, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Anna M. Sigmund
- Chair of Vegetative Anatomy, Faculty of Medicine, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Desalegn T. Egu
- Chair of Vegetative Anatomy, Faculty of Medicine, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Ramona A. Eichkorn
- Department of Dermatology, University Medical Center Tübingen, Eberhard Karls-University, Tübingen, Germany
| | - Amir S. Yazdi
- Department of Dermatology, University Medical Center Tübingen, Eberhard Karls-University, Tübingen, Germany
- Department of Dermatology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Aachen, Germany
| | - Miklós Sárdy
- Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, Budapest, Hungary
- Department of Dermatology and Allergy, University Hospital, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Michael Hertl
- Department of Dermatology and Allergology, Philipps University of Marburg, Marburg, Germany
| | - Dario Didona
- Department of Dermatology and Allergology, Philipps University of Marburg, Marburg, Germany
| | - Takashi Hashimoto
- Department of Dermatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Jens Waschke
- Chair of Vegetative Anatomy, Faculty of Medicine, Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
- *Correspondence: Jens Waschke,
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Balneger N, Cornelissen LAM, Wassink M, Moons SJ, Boltje TJ, Bar-Ephraim YE, Das KK, Søndergaard JN, Büll C, Adema GJ. Sialic acid blockade in dendritic cells enhances CD8 + T cell responses by facilitating high-avidity interactions. Cell Mol Life Sci 2022; 79:98. [PMID: 35089436 PMCID: PMC8799591 DOI: 10.1007/s00018-021-04027-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/06/2021] [Accepted: 11/08/2021] [Indexed: 12/11/2022]
Abstract
Sialic acids are negatively charged carbohydrates that cap the glycans of glycoproteins and glycolipids. Sialic acids are involved in various biological processes including cell-cell adhesion and immune recognition. In dendritic cells (DCs), the major antigen-presenting cells of the immune system, sialic acids emerge as important regulators of maturation and interaction with other lymphocytes including T cells. Many aspects of how sialic acids regulate DC functions are not well understood and tools and model systems to address these are limited. Here, we have established cultures of murine bone marrow-derived DCs (BMDCs) that lack sialic acid expression using a sialic acid-blocking mimetic Ac53FaxNeu5Ac. Ac53FaxNeu5Ac treatment potentiated BMDC activation via toll-like receptor (TLR) stimulation without affecting differentiation and viability. Sialic acid blockade further increased the capacity of BMDCs to induce antigen-specific CD8+ T cell proliferation. Transcriptome-wide gene expression analysis revealed that sialic acid mimetic treatment of BMDCs induces differential expression of genes involved in T cell activation, cell-adhesion, and cell-cell interactions. Subsequent cell clustering assays and single cell avidity measurements demonstrated that BMDCs with reduced sialylation form higher avidity interactions with CD8+ T cells. This increased avidity was detectable in the absence of antigens, but was especially pronounced in antigen-dependent interactions. Together, our data show that sialic acid blockade in BMDCs ameliorates maturation and enhances both cognate T cell receptor-MHC-dependent and independent T cell interactions that allow for more robust CD8+ T cell responses.
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Affiliation(s)
- N Balneger
- Radiotherapy and OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, 6525 GA, Nijmegen, The Netherlands
| | - L A M Cornelissen
- Radiotherapy and OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, 6525 GA, Nijmegen, The Netherlands
| | - M Wassink
- Radiotherapy and OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, 6525 GA, Nijmegen, The Netherlands
| | - S J Moons
- Cluster for Molecular Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - T J Boltje
- Cluster for Molecular Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - Y E Bar-Ephraim
- LUMICKS, Pilotenstraat 41, 1059 CH, Amsterdam, The Netherlands
| | - K K Das
- LUMICKS, Pilotenstraat 41, 1059 CH, Amsterdam, The Netherlands
| | - J N Søndergaard
- Center for Infectious Disease Education and Research, Osaka University, Osaka, 565-0871, Japan
| | - C Büll
- Radiotherapy and OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, 6525 GA, Nijmegen, The Netherlands
- Hubrecht Institute, Uppsalalaan 8, 3584 CT, Utrecht, The Netherlands
| | - G J Adema
- Radiotherapy and OncoImmunology Laboratory, Department of Radiation Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 32, 6525 GA, Nijmegen, The Netherlands.
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Bortolotti D, Gentili V, Rizzo S, Schiuma G, Beltrami S, Spadaro S, Strazzabosco G, Campo G, Carosella ED, Papi A, Rizzo R, Contoli M. Increased sHLA-G Is Associated with Improved COVID-19 Outcome and Reduced Neutrophil Adhesion. Viruses 2021; 13:v13091855. [PMID: 34578436 PMCID: PMC8473385 DOI: 10.3390/v13091855] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/12/2021] [Accepted: 09/14/2021] [Indexed: 12/17/2022] Open
Abstract
Human leukocyte antigen (HLA) is a group of molecules involved in inflammatory and infective responses. We evaluated blood sHLA-E and sHLA-G levels in hospitalized COVID-19 patients with respiratory failure and their relationship with clinical evolution, changes in endothelial activation biomarker profile, and neutrophil adhesion. sHLA-E, sHLA-G, and endothelial activation biomarkers were quantified by ELISA assay in plasma samples. Neutrophil adhesion to endothelium was assessed in the presence/absence of patients’ plasma samples. At admission, plasma levels of sHLA-G and sHLA-E were significantly higher in COVID-19 patients with respiratory failure compared to controls. COVID-19 clinical improvement was associated with increased sHLA-G plasma levels. In COVID-19, but not in control patients, an inverse correlation was found between serum sICAM-1 and E-selectin levels and plasma sHLA-G values. The in vitro analysis of activated endothelial cells confirmed the ability of HLA-G molecules to control sICAM-1 and sE-selectin expression via CD160 interaction and FGF2 induction and consequently neutrophil adhesion. We suggest a potential role for sHLA-G in improving COVID-19 patients’ clinical condition related to the control of neutrophil adhesion to activated endothelium.
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Affiliation(s)
- Daria Bortolotti
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy; (D.B.); (V.G.); (S.R.); (G.S.); (S.B.); (G.S.)
| | - Valentina Gentili
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy; (D.B.); (V.G.); (S.R.); (G.S.); (S.B.); (G.S.)
| | - Sabrina Rizzo
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy; (D.B.); (V.G.); (S.R.); (G.S.); (S.B.); (G.S.)
| | - Giovanna Schiuma
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy; (D.B.); (V.G.); (S.R.); (G.S.); (S.B.); (G.S.)
| | - Silvia Beltrami
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy; (D.B.); (V.G.); (S.R.); (G.S.); (S.B.); (G.S.)
| | - Savino Spadaro
- Intensive Care Unit, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy;
| | - Giovanni Strazzabosco
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy; (D.B.); (V.G.); (S.R.); (G.S.); (S.B.); (G.S.)
| | - Gianluca Campo
- Cardiology Unit, Azienda Ospedaliero Universitaria di Ferrara, Cona, 44124 Ferrara, Italy;
| | - Edgardo D. Carosella
- CEA, Institute of Emerging Diseases and Innovative Therapies (iMETI), Research Division in Hematology and Immunology (SRHI), Saint-Louis Hospital, 75001 Paris, France;
| | - Alberto Papi
- Respiratory Section, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (A.P.); (M.C.)
- Respiratory Unit, Azienda Ospedaliera Universitaria Ferrara, Cona, 44124 Ferrara, Italy
| | - Roberta Rizzo
- Department of Chemical, Pharmaceutical and Agricultural Science, University of Ferrara, 44121 Ferrara, Italy; (D.B.); (V.G.); (S.R.); (G.S.); (S.B.); (G.S.)
- Industrial Research and Technology Transfer Laboratory (LTTA), University of Ferrara, 44121 Ferrara, Italy
- Correspondence: ; Tel.: +39-0532455382
| | - Marco Contoli
- Respiratory Section, Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (A.P.); (M.C.)
- Respiratory Unit, Azienda Ospedaliera Universitaria Ferrara, Cona, 44124 Ferrara, Italy
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Calvier L, Manouchehri N, Sacharidou A, Mineo C, Shaul PW, Hui DY, Kounnas MZ, Stüve O, Herz J. Apolipoprotein E receptor 2 deficiency decreases endothelial adhesion of monocytes and protects against autoimmune encephalomyelitis. Sci Immunol 2021; 6:eabd0931. [PMID: 34452924 PMCID: PMC8627794 DOI: 10.1126/sciimmunol.abd0931] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/29/2021] [Indexed: 01/10/2023]
Abstract
Under normal conditions, the blood-brain barrier effectively regulates the passage of immune cells into the central nervous system (CNS). However, under pathological conditions such as multiple sclerosis (MS), leukocytes, especially monocytes, infiltrate the CNS where they promote inflammatory demyelination, resulting in paralysis. Therapies targeting the immune cells directly and preventing leukocyte infiltration exist for MS but may compromise the immune system. Here, we explore how apolipoprotein E receptor 2 (ApoER2) regulates vascular adhesion and infiltration of monocytes during inflammation. We induced experimental autoimmune encephalitis in ApoER2 knockout mice and in mice carrying a loss-of-function mutation in the ApoER2 cytoplasmic domain. In both models, paralysis and neuroinflammation were largely abolished as a result of greatly diminished monocyte adherence due to reduced expression of adhesion molecules on the endothelial surface. Our findings expand our mechanistic understanding of the vascular barrier, the regulation of inflammation and vascular permeability, and the therapeutic potential of ApoER2-targeted therapies.
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Affiliation(s)
- Laurent Calvier
- Department of Molecular Genetics, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA.
- Center for Translational Neurodegeneration Research, UT Southwestern Medical Center, Dallas, TX, USA
| | - Navid Manouchehri
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Anastasia Sacharidou
- Center for Pulmonary and Vascular Biology, Department of Pediatrics, UT Southwestern Medical Center, Dallas, TX, USA
| | - Chieko Mineo
- Center for Pulmonary and Vascular Biology, Department of Pediatrics, UT Southwestern Medical Center, Dallas, TX, USA
| | - Philip W Shaul
- Center for Pulmonary and Vascular Biology, Department of Pediatrics, UT Southwestern Medical Center, Dallas, TX, USA
| | - David Y Hui
- Department of Pathology, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | | | - Olaf Stüve
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Neurology, VA North Texas Health Care System, Medical Service, Dallas, TX, USA
| | - Joachim Herz
- Department of Molecular Genetics, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA.
- Center for Translational Neurodegeneration Research, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Neurology, UT Southwestern Medical Center, Dallas, TX, USA
- Department of Neuroscience, UT Southwestern Medical Center, Dallas, TX, USA
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5
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Schmid A, Vlacil AK, Schuett J, Karrasch T, Schieffer B, Schäffler A, Grote K. Anti-Inflammatory Effects of C1q/Tumor Necrosis Factor-Related Protein 3 (CTRP3) in Endothelial Cells. Cells 2021; 10:2146. [PMID: 34440913 PMCID: PMC8391708 DOI: 10.3390/cells10082146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/13/2021] [Accepted: 08/18/2021] [Indexed: 01/18/2023] Open
Abstract
The C1q/TNF-related protein 3 (CTRP3) represents a pleiotropic adipokine reciprocally associated with obesity and type 2 diabetes mellitus and exhibits anti-inflammatory properties in relation to lipopolysaccharides (LPS)-mediated effects in adipocytes, as well as monocytes/macrophages. Here, we focused on the influence of CTRP3 on LPS-mediated effects in endothelial cells in order to expand the understanding of a possible anti-inflammatory function of CTRP3 in a setting of endotoxemia. An organ- and tissue-specific expression analysis by real-time PCR revealed a considerable Ctrp3 expression in various adipose tissue compartments; however, higher levels were detected in the aorta and in abundantly perfused tissues (bone marrow and the thyroid gland). We observed a robust Ctrp3 expression in primary endothelial cells and a transient upregulation in murine endothelial (MyEND) cells by LPS (50 ng/mL). In MyEND cells, CTRP3 inhibited the LPS-induced expression of interleukin (Il)-6 and the tumor necrosis factor (Tnf)-α, and suppressed the LPS-dependent expression of the major endothelial adhesion molecules Vcam-1 and Icam-1. The LPS-induced adhesion of monocytic cells to an endothelial monolayer was antagonized by CTRP3. In C57BL/6J mice with an LPS-induced systemic inflammation, exogenous CTRP3 did not affect circulating levels of TNF-α, ICAM-1, and VCAM-1. In conclusion, we characterized CTRP3 beyond its function as an adipokine in a setting of vascular inflammation. CTRP3 inhibited LPS-induced endothelial expression of adhesion molecules and monocyte cell adhesion, indicating an important vascular anti-inflammatory role for CTRP3 in endotoxemia.
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Affiliation(s)
- Andreas Schmid
- Department of Internal Medicine III, University of Giessen, 35390 Giessen, Germany; (T.K.); (A.S.)
| | - Ann-Kathrin Vlacil
- Department of Cardiology and Angiology, Philipps-University Marburg, 35037 Marburg, Germany; (A.-K.V.); (J.S.); (B.S.); (K.G.)
| | - Jutta Schuett
- Department of Cardiology and Angiology, Philipps-University Marburg, 35037 Marburg, Germany; (A.-K.V.); (J.S.); (B.S.); (K.G.)
| | - Thomas Karrasch
- Department of Internal Medicine III, University of Giessen, 35390 Giessen, Germany; (T.K.); (A.S.)
| | - Bernhard Schieffer
- Department of Cardiology and Angiology, Philipps-University Marburg, 35037 Marburg, Germany; (A.-K.V.); (J.S.); (B.S.); (K.G.)
| | - Andreas Schäffler
- Department of Internal Medicine III, University of Giessen, 35390 Giessen, Germany; (T.K.); (A.S.)
| | - Karsten Grote
- Department of Cardiology and Angiology, Philipps-University Marburg, 35037 Marburg, Germany; (A.-K.V.); (J.S.); (B.S.); (K.G.)
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Blum E, Margalit R, Levy L, Getter T, Lahav R, Zilber S, Bradfield P, Imhof BA, Alpert E, Gruzman A. A Potent Leukocyte Transmigration Blocker: GT-73 Showed a Protective Effect against LPS-Induced ARDS in Mice. Molecules 2021; 26:4583. [PMID: 34361736 PMCID: PMC8348436 DOI: 10.3390/molecules26154583] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/13/2021] [Accepted: 07/22/2021] [Indexed: 01/08/2023] Open
Abstract
We recently developed a molecule (GT-73) that blocked leukocyte transendothelial migration from blood to the peripheral tissues, supposedly by affecting the platelet endothelial cell adhesion molecule (PECAM-1) function. GT-73 was tested in an LPS-induced acute respiratory distress syndrome (ARDS) mouse model. The rationale for this is based on the finding that the mortality of COVID-19 patients is partly caused by ARDS induced by a massive migration of leukocytes to the lungs. In addition, the role of tert-butyl and methyl ester moieties in the biological effect of GT-73 was investigated. A human leukocyte, transendothelial migration assay was applied to validate the blocking effect of GT-73 derivatives. Finally, a mouse model of LPS-induced ARDS was used to evaluate the histological and biochemical effects of GT-73. The obtained results showed that GT-73 has a unique structure that is responsible for its biological activity; two of its chemical moieties (tert-butyl and a methyl ester) are critical for this effect. GT-73 is a prodrug, and its lipophilic tail covalently binds to PECAM-1 via Lys536. GT-73 significantly decreased the number of infiltrating leukocytes in the lungs and reduced the inflammation level. Finally, GT-73 reduced the levels of IL-1β, IL-6, and MCP-1 in bronchoalveolar lavage fluid (BALF). In summary, we concluded that GT-73, a blocker of white blood cell transendothelial migration, has a favorable profile as a drug candidate for the treatment of ARDS in COVID-19 patients.
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Affiliation(s)
- Eliav Blum
- Department of Chemistry, Faculty of Exact Sciences, Campus Ramat-Gan, Bar-Ilan University, Ramat-Gan 5290002, Israel; (E.B.); (L.L.); (T.G.)
| | - Raanan Margalit
- Science in Action, 3 Pinchas Sapir Street, Weizmann Science Park, Ness-Ziona 7403650, Israel;
| | - Laura Levy
- Department of Chemistry, Faculty of Exact Sciences, Campus Ramat-Gan, Bar-Ilan University, Ramat-Gan 5290002, Israel; (E.B.); (L.L.); (T.G.)
| | - Tamar Getter
- Department of Chemistry, Faculty of Exact Sciences, Campus Ramat-Gan, Bar-Ilan University, Ramat-Gan 5290002, Israel; (E.B.); (L.L.); (T.G.)
| | - Ron Lahav
- AltA-ZuZ Therapeutics, 3 Pinchas Sapir Street, Weizmann Science Park, Ness-Ziona 7403650, Israel;
| | - Sofia Zilber
- Department of Pathology, Shaare Zedek Medical Center, 12 Shmuel Bait Street, Jerusalem 9103102, Israel;
| | - Paul Bradfield
- MesenFlow Technologies, Chemin des Aulx, 14, CH-1228 Geneva, Switzerland;
| | - Beat A. Imhof
- Department of Pathology and Immunology, University of Geneva, Rue Michel-Servet, CH-1211 Geneva, Switzerland;
| | - Evgenia Alpert
- AltA-ZuZ Therapeutics, 3 Pinchas Sapir Street, Weizmann Science Park, Ness-Ziona 7403650, Israel;
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Campus Ramat-Gan, Bar-Ilan University, Ramat-Gan 5290002, Israel; (E.B.); (L.L.); (T.G.)
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Bonilha CS, Benson RA, Scales HE, Brewer JM, Garside P. Junctional adhesion molecule-A on dendritic cells regulates Th1 differentiation. Immunol Lett 2021; 235:32-40. [PMID: 34000305 DOI: 10.1016/j.imlet.2021.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/26/2021] [Accepted: 05/08/2021] [Indexed: 02/06/2023]
Abstract
The junctional adhesion molecule-A (JAM-A) is an adhesion molecule present in the surface of several cell types, such as endothelial cells and leukocytes as well as Dendritic Cells (DC). Given the potential relevance of JAM-A in diverse pathological conditions such as inflammatory diseases and cancer, we investigated the role of JAM-A in CD4+ T cell priming. We demonstrate that JAM-A is present in the immunological synapse formed between T cells and DC during priming. Furthermore, an antagonistic anti-JAM-A mAb could disrupt the interaction between CD4+ T cell and DC. Antagonism of JAM-A also attenuated T cell activation and proliferation with a decrease in T-bet expression and increased IL-6 and IL-17 secretion. These findings demonstrate a functional role for JAM-A in interactions between CD4+ T cells and DCs during T cell priming as a positive regulator of Th1 differentiation.
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Affiliation(s)
- Caio S Bonilha
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, Sir Graeme Davies Building, University of Glasgow, 120 University Place, Glasgow G12 8TA, UK.
| | - Robert A Benson
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, Sir Graeme Davies Building, University of Glasgow, 120 University Place, Glasgow G12 8TA, UK
| | - Hannah E Scales
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, Sir Graeme Davies Building, University of Glasgow, 120 University Place, Glasgow G12 8TA, UK
| | - James M Brewer
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, Sir Graeme Davies Building, University of Glasgow, 120 University Place, Glasgow G12 8TA, UK
| | - Paul Garside
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, Sir Graeme Davies Building, University of Glasgow, 120 University Place, Glasgow G12 8TA, UK.
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Matei E, Aschie M, Mitroi AF, Ghinea MM, Gheorghe E, Petcu L, Dobrin N, Chisoi A, Mihaela M. Biomarkers involved in evaluation of platelets function in South-Eastern Romanian patients with hematological malignancies subtypes. Medicine (Baltimore) 2021; 100:e25944. [PMID: 34011073 PMCID: PMC8137019 DOI: 10.1097/md.0000000000025944] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 04/02/2021] [Accepted: 04/23/2021] [Indexed: 01/05/2023] Open
Abstract
ABSTRACT At present, various researches presented how subtypes of hematological malignancies are related to stages of the immune response, because the activated immune system represents a promising form in cancer treatment. This study explores the relationship between the adaptive immune system (T cells), and the coagulation system (platelets, platelet membrane glycoproteins, platelets derivate microparticles) which seems to play an important role in host immune defense of patients with acute myeloblastic leukemia (AML) or B cell lymphoma (BCL), 2 of the most common hematological malignancies subtypes.Blood samples (n = 114) obtained from patients with AML or BCL were analyzed for platelet membrane glycoproteins (CD42b, CD61), glycoprotein found on the surface of the T helper cells (CD4+), protein complex-specific antigen for T cells (CD3+), platelet-derived microparticles (CD61 PMP) biomarkers by flow cytometry, and hematological parameters were quantified by usual methods.In patients with AML, the means of the percentage of the expressions of the molecules on platelet surfaces (CD61 and CD42b, P < .01; paired T test) were lower as compared to both control subgroups. The expression of cytoplasmic granules content (CD61 PMP) had a significantly higher value in patients with AML reported to controlling subgroups (P < .01; paired T test), which is suggesting an intravascular activation of platelets.The platelet activation status was presented in patients with low stage BCL because CD61 and CD42b expressions were significantly higher than control subgroups, but the expression of CD 61 PMP had a significantly decreased value reported to control subgroups (all P < .01; paired T test). T helper/inducer lineage CD4+ and T lymphoid lineage CD3+ expressions presented significant differences between patients with AML or low stage BCL reported to control subgroups (all P < .01; paired T test).Platelet-lymphocyte interactions are involved in malignant disorders, and CD61, CD42b present on platelet membranes, as functionally active surface receptors mediate the adhesion of active platelets to lymphocytes, endothelial cells, and cancer cells.
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MESH Headings
- Aged
- Biomarkers, Tumor/blood
- Biomarkers, Tumor/metabolism
- Blood Platelets/immunology
- Blood Platelets/metabolism
- CD3 Complex/blood
- Cell Adhesion/immunology
- Cell-Derived Microparticles
- Female
- Flow Cytometry
- Humans
- Integrin beta3/blood
- Leukemia, Myeloid, Acute/blood
- Leukemia, Myeloid, Acute/immunology
- Lymphocyte Activation
- Lymphocyte Count
- Lymphoma, B-Cell/blood
- Lymphoma, B-Cell/immunology
- Male
- Middle Aged
- Platelet Activation/immunology
- Platelet Count
- Platelet Glycoprotein GPIb-IX Complex/analysis
- Romania
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
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Affiliation(s)
- Elena Matei
- Center for Research and Development of the Morphological and Genetic Studies of Malignant Pathology, “Ovidius” University of Constanta, CEDMOG
| | - Mariana Aschie
- Center for Research and Development of the Morphological and Genetic Studies of Malignant Pathology, “Ovidius” University of Constanta, CEDMOG
- Clinical Service of Pathology
| | - Anca Florentina Mitroi
- Center for Research and Development of the Morphological and Genetic Studies of Malignant Pathology, “Ovidius” University of Constanta, CEDMOG
- Clinical Service of Pathology
| | - Mihaela Maria Ghinea
- Internal Medicine-Hematology Department, “Sf. Apostol Andrei” Emergency County Hospital
| | - Emma Gheorghe
- Medicine Faculty, “Ovidius” University of Constanta, Constanta, Romania
| | - Lucian Petcu
- Center for Research and Development of the Morphological and Genetic Studies of Malignant Pathology, “Ovidius” University of Constanta, CEDMOG
| | - Nicolae Dobrin
- Center for Research and Development of the Morphological and Genetic Studies of Malignant Pathology, “Ovidius” University of Constanta, CEDMOG
| | - Anca Chisoi
- Center for Research and Development of the Morphological and Genetic Studies of Malignant Pathology, “Ovidius” University of Constanta, CEDMOG
- Internal Medicine-Hematology Department, “Sf. Apostol Andrei” Emergency County Hospital
| | - Manea Mihaela
- Center for Research and Development of the Morphological and Genetic Studies of Malignant Pathology, “Ovidius” University of Constanta, CEDMOG
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9
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Abstract
Integrins are transmembrane receptors associated with adhesion and migration and are often highly differentially expressed receptors amongst natural killer cell subsets in microenvironments. Tissue resident natural killer cells are frequently defined by their differential integrin expression compared to other NK cell subsets, and integrins can further localize tissue resident NK cells to tissue microenvironments. As such, integrins play important roles in both the phenotypic and functional identity of NK cell subsets. Here we review the expression of integrin subtypes on NK cells and NK cell subsets with the goal of better understanding how integrin selection can dictate tissue residency and mediate function from the nanoscale to the tissue environment.
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Affiliation(s)
| | - Emily M. Mace
- Department of Pediatrics, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, United States
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10
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Nemcakova I, Blahova L, Rysanek P, Blanquer A, Bacakova L, Zajíčková L. Behaviour of Vascular Smooth Muscle Cells on Amine Plasma-Coated Materials with Various Chemical Structures and Morphologies. Int J Mol Sci 2020; 21:E9467. [PMID: 33322781 PMCID: PMC7763571 DOI: 10.3390/ijms21249467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 12/16/2022] Open
Abstract
Amine-coated biodegradable materials based on synthetic polymers have a great potential for tissue remodeling and regeneration because of their excellent processability and bioactivity. In the present study, we have investigated the influence of various chemical compositions of amine plasma polymer (PP) coatings and the influence of the substrate morphology, represented by polystyrene culture dishes and polycaprolactone nanofibers (PCL NFs), on the behavior of vascular smooth muscle cells (VSMCs). Although all amine-PP coatings improved the initial adhesion of VSMCs, 7-day long cultivation revealed a clear preference for the coating containing about 15 at.% of nitrogen (CPA-33). The CPA-33 coating demonstrated the ideal combination of good water stability, a sufficient amine group content, and favorable surface wettability and morphology. The nanostructured morphology of amine-PP-coated PCL NFs successfully slowed the proliferation rate of VSMCs, which is essential in preventing restenosis of vascular replacements in vivo. At the same time, CPA-33-coated PCL NFs supported the continuous proliferation of VSMCs during 7-day long cultivation, with no significant increase in cytokine secretion by RAW 264.7 macrophages. The CPA-33 coating deposited on biodegradable PCL NFs therefore seems to be a promising material for manufacturing small-diameter vascular grafts, which are still lacking on the current market.
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MESH Headings
- Amines/adverse effects
- Amines/chemistry
- Amines/immunology
- Amines/pharmacology
- Animals
- Cell Adhesion/drug effects
- Cell Adhesion/immunology
- Cell Proliferation/drug effects
- Cells, Cultured
- Coated Materials, Biocompatible/adverse effects
- Coated Materials, Biocompatible/chemistry
- Coated Materials, Biocompatible/pharmacology
- Macrophages/drug effects
- Macrophages/metabolism
- Mice
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/growth & development
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Nanofibers/adverse effects
- Nanofibers/chemistry
- Photoelectron Spectroscopy
- Plasma/chemistry
- Plasma/immunology
- Polyesters/chemistry
- Polymers/adverse effects
- Polymers/chemistry
- Polymers/pharmacology
- RAW 264.7 Cells
- Rats
- Surface Properties/drug effects
- Tissue Scaffolds/adverse effects
- Tissue Scaffolds/chemistry
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Affiliation(s)
- Ivana Nemcakova
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, v.v.i., Videnska 1083, 142 20 Prague 4, Czech Republic; (A.B.); (L.B.)
| | - Lucie Blahova
- Central European Institute of Technology—CEITEC, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (L.B.); (L.Z.)
| | - Petr Rysanek
- Department of Physics, Faculty of Science, University of J. E. Purkyne in Usti nad Labem, Pasteurova 15, 400 96 Usti nad Labem, Czech Republic;
| | - Andreu Blanquer
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, v.v.i., Videnska 1083, 142 20 Prague 4, Czech Republic; (A.B.); (L.B.)
| | - Lucie Bacakova
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, v.v.i., Videnska 1083, 142 20 Prague 4, Czech Republic; (A.B.); (L.B.)
| | - Lenka Zajíčková
- Central European Institute of Technology—CEITEC, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (L.B.); (L.Z.)
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37 Brno, Czech Republic
- Central European Institute of Technology—CEITEC, Brno University of Technology, Purkynova 123, 612 00 Brno, Czech Republic
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11
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Lam FW, Brown CA, Valladolid C, Emebo DC, Palzkill TG, Cruz MA. The vimentin rod domain blocks P-selectin-P-selectin glycoprotein ligand 1 interactions to attenuate leukocyte adhesion to inflamed endothelium. PLoS One 2020; 15:e0240164. [PMID: 33048962 PMCID: PMC7553327 DOI: 10.1371/journal.pone.0240164] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 09/21/2020] [Indexed: 01/30/2023] Open
Abstract
Acute inflammation begins with leukocyte P-selectin glycoprotein ligand-1 (PSGL-1) binding to P-selectin on inflamed endothelium and platelets. In pathologic conditions, this process may contribute to secondary organ damage, like sepsis-induced liver injury. Therefore, developing novel therapies to attenuate inflammation may be beneficial. We previously reported that recombinant human vimentin (rhVim) binds P-selectin to block leukocyte adhesion to endothelium and platelets. In this study, we used SPOT-peptide arrays to identify the rod domain as the active region within rhVim that interacts with P-selectin. Indeed, recombinant human rod domain of vimentin (rhRod) binds to P-selectin with high affinity, with in silico modeling suggesting that rhRod binds P-selectin at or near the PSGL-1 binding site. Using bio-layer interferometry, rhRod decreases PSGL-1 binding to immobilized P-selectin, corroborating the in silico data. Under parallel-plate flow, rhRod blocks leukocyte adhesion to fibrin(ogen)-captured platelets, P-selectin/Fc-coated channels, and IL-1β/IL-4-co-stimulated human umbilical vein endothelial cells. Finally, using intravital microscopy in endotoxemic C57Bl/6 mice, rhRod co-localizes with P-selectin in the hepatic sinusoids and decreases neutrophil adhesion to hepatic sinusoids. These data suggest a potential role for rhRod in attenuating inflammation through directly blocking P-selectin-PSGL-1 interactions.
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Affiliation(s)
- Fong Wilson Lam
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States of America
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, United States of America
- * E-mail:
| | - Cameron August Brown
- Department of Pharmacology and Chemical Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Christian Valladolid
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, United States of America
- Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
| | - Dabel Cynthia Emebo
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States of America
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, United States of America
| | - Timothy Gerald Palzkill
- Department of Pharmacology and Chemical Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Miguel Angel Cruz
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, United States of America
- Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
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12
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Dehghani T, Panitch A. Endothelial cells, neutrophils and platelets: getting to the bottom of an inflammatory triangle. Open Biol 2020; 10:200161. [PMID: 33050789 PMCID: PMC7653352 DOI: 10.1098/rsob.200161] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023] Open
Abstract
Severe fibrotic and thrombotic events permeate the healthcare system, causing suffering for millions of patients with inflammatory disorders. As late-state consequences of chronic inflammation, fibrosis and thrombosis are the culmination of pathological interactions of activated endothelium, neutrophils and platelets after vessel injury. Coupling of these three cell types ensures a pro-coagulant, cytokine-rich environment that promotes the capture, activation and proliferation of circulating immune cells and recruitment of key pro-fibrotic cell types such as myofibroblasts. As the first responders to sterile inflammatory injury, it is important to understand how endothelial cells, neutrophils and platelets help create this environment. There has been a growing interest in this intersection over the past decade that has helped shape the development of therapeutics to target these processes. Here, we review recent insights into how neutrophils, platelets and endothelial cells guide the development of pathological vessel repair that can also result in underlying tissue fibrosis. We further discuss recent efforts that have been made to translate this knowledge into therapeutics and provide perspective as to how a compound or combination therapeutics may be most efficacious when tackling fibrosis and thrombosis that is brought upon by chronic inflammation.
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Affiliation(s)
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California, Davis, 451 Health Sciences Drive, GBSF 2303, Davis, CA, USA
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13
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Baiula M, Greco R, Ferrazzano L, Caligiana A, Hoxha K, Bandini D, Longobardi P, Spampinato S, Tolomelli A. Integrin-mediated adhesive properties of neutrophils are reduced by hyperbaric oxygen therapy in patients with chronic non-healing wound. PLoS One 2020; 15:e0237746. [PMID: 32810144 PMCID: PMC7433869 DOI: 10.1371/journal.pone.0237746] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/31/2020] [Indexed: 12/30/2022] Open
Abstract
In recent years, several studies suggested that the ability of hyperbaric oxygen therapy (HBOT) to promote healing in patients with diabetic ulcers and chronic wounds is due to the reduction of inflammatory cytokines and to a significant decrease in neutrophils recruitment to the damaged area. α4 and β2 integrins are receptors mediating the neutrophil adhesion to the endothelium and the comprehension of the effects of hyperbaric oxygenation on their expression and functions in neutrophils could be of great importance for the design of novel therapeutic protocols focused on anti-inflammatory agents. In this study, the α4 and β2 integrins' expression and functions have been evaluated in human primary neutrophils obtained from patients with chronic non-healing wounds and undergoing a prolonged HBOT (150 kPa per 90 minutes). The effect of a peptidomimetic α4β1 integrin antagonist has been also analyzed under these conditions. A statistically significant decrease (68%) in β2 integrin expression on neutrophils was observed during the treatment with HBO and maintained one month after the last treatment, while α4 integrin levels remained unchanged. However, cell adhesion function of both neutrophilic integrins α4β1 and β2 was significantly reduced 70 and 67%, respectively), but α4β1 integrin was still sensitive to antagonist inhibition in the presence of fibronectin, suggesting that a combined therapy between HBOT and integrin antagonists could have greater antinflammatory efficacy.
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Affiliation(s)
- Monica Baiula
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Roberto Greco
- Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum -University of Bologna, Bologna, Italy
| | - Lucia Ferrazzano
- Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum -University of Bologna, Bologna, Italy
| | - Alberto Caligiana
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | | | | | | | - Santi Spampinato
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Alessandra Tolomelli
- Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum -University of Bologna, Bologna, Italy
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14
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Abstract
Foreign body reaction reflects the integration between biomaterials and host cells. At the implantation microenvironment, macrophages usually fuse into multinuclear cells, also known as foreign body giant cells, to respond to the biomaterial implants. To understand the biomaterial-induced macrophage fusion, we examined whether biomaterial alone can initiate and control the fusion rate without exogenous cytokines and chemicals. We introduced a collagen-based 3D matrix to embed Raw264.7 cell line and primary rat bone marrow-derived macrophages. We found the biomaterial-stimuli interacted regional macrophages and altered the overall fusogenic protein expressions to regulate the macrophage fusion rate. The fusion rate could be altered by modulating the cell-matrix and cell-cell adhesions. The fused macrophage morphologies, the nuclei number in the fused macrophage, and the fusion rates were matrix dependent. The phenomena were also observed in the in vivo models. These results suggest that the biomaterial-derived stimuli exert similar functions as cytokines to alter the competency of macrophage fusion as well as their drug sensitivity in the biomaterial implanted tissue environment. Furthermore, this in vitro 3D-matrix model has the potential to serve as a toolbox to predict the host tissue response on implanted biomaterials.
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Affiliation(s)
- Josephine Y Fang
- Nimni-Cordoba Tissue Engineering and Drug Discovery Laboratory, Division of Plastic and Reconstructive Surgery, Departments of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States
- Center of Craniofacial Biology, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, California, United States
| | - Zhi Yang
- Nimni-Cordoba Tissue Engineering and Drug Discovery Laboratory, Division of Plastic and Reconstructive Surgery, Departments of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States
| | - Bo Han
- Nimni-Cordoba Tissue Engineering and Drug Discovery Laboratory, Division of Plastic and Reconstructive Surgery, Departments of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States.
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Souther California, Los Angeles, California, United States.
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15
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Lukácsi S, Gerecsei T, Balázs K, Francz B, Szabó B, Erdei A, Bajtay Z. The differential role of CR3 (CD11b/CD18) and CR4 (CD11c/CD18) in the adherence, migration and podosome formation of human macrophages and dendritic cells under inflammatory conditions. PLoS One 2020; 15:e0232432. [PMID: 32365067 PMCID: PMC7197861 DOI: 10.1371/journal.pone.0232432] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 04/14/2020] [Indexed: 11/19/2022] Open
Abstract
CR3 and CR4, the leukocyte specific β2-integrins, involved in cellular adherence, migration and phagocytosis, are often assumed to have similar functions. Previously however, we proved that under physiological conditions CR4 is dominant in the adhesion to fibrinogen of human monocyte-derived macrophages (MDMs) and dendritic cells (MDDCs). Here, using inflammatory conditions, we provide further evidence that the expression and function of CR3 and CR4 are not identical in these cell types. We found that LPS treatment changes their expression differently on MDMs and MDDCs, suggesting a cell type specific regulation. Using mAb24, specific for the high affinity conformation of CD18, we proved that the activation and recycling of β2-integrins is significantly enhanced upon LPS treatment. Adherence to fibrinogen was assessed by two fundamentally different approaches: a classical adhesion assay and a computer-controlled micropipette, capable of measuring adhesion strength. While both receptors participated in adhesion, we demonstrated that CR4 exerts a dominant role in the strong attachment of MDDCs. Studying the formation of podosomes we found that MDMs retain podosome formation after LPS activation, whereas MDDCs lose this ability, resulting in a significantly reduced adhesion force and an altered cellular distribution of CR3 and CR4. Our results suggest that inflammatory conditions reshape differentially the expression and role of CR3 and CR4 in macrophages and dendritic cells.
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Affiliation(s)
- Szilvia Lukácsi
- MTA-ELTE Immunology Research Group, Eötvös Loránd University, Budapest, Hungary
| | - Tamás Gerecsei
- Department of Biological Physics, Eötvös Loránd University, Budapest, Hungary
- Nanobiosensorics “Lendület” Group, Institute of Technical Physics and Material Sciences, Centre for Energy Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Katalin Balázs
- Department of Immunology, Eötvös Loránd University, Budapest, Hungary
| | | | - Bálint Szabó
- Department of Biological Physics, Eötvös Loránd University, Budapest, Hungary
- CellSorter Company for Innovations, Budapest, Hungary
| | - Anna Erdei
- MTA-ELTE Immunology Research Group, Eötvös Loránd University, Budapest, Hungary
- Department of Immunology, Eötvös Loránd University, Budapest, Hungary
| | - Zsuzsa Bajtay
- MTA-ELTE Immunology Research Group, Eötvös Loránd University, Budapest, Hungary
- Department of Immunology, Eötvös Loránd University, Budapest, Hungary
- * E-mail:
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16
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Asem M, Young AM, Oyama C, Claure De La Zerda A, Liu Y, Yang J, Hilliard TS, Johnson J, Harper EI, Guldner I, Zhang S, Page-Mayberry T, Kaliney WJ, Stack MS. Host Wnt5a Potentiates Microenvironmental Regulation of Ovarian Cancer Metastasis. Cancer Res 2020; 80:1156-1170. [PMID: 31932454 PMCID: PMC8245162 DOI: 10.1158/0008-5472.can-19-1601] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/09/2019] [Accepted: 01/09/2020] [Indexed: 12/19/2022]
Abstract
The noncanonical Wnt ligand Wnt5a is found in high concentrations in ascites of women with ovarian cancer. In this study, we elucidated the role of Wnt5a in ovarian cancer metastasis. Wnt5a promoted ovarian tumor cell adhesion to peritoneal mesothelial cells as well as migration and invasion, leading to colonization of peritoneal explants. Host components of the ovarian tumor microenvironment, notably peritoneal mesothelial cells and visceral adipose, secreted Wnt5a. Conditional knockout of host WNT5A significantly reduced peritoneal metastatic tumor burden. Tumors formed in WNT5A knockout mice had elevated cytotoxic T cells, increased M1 macrophages, and decreased M2 macrophages, indicating that host Wnt5a promotes an immunosuppressive microenvironment. The Src family kinase Fgr was identified as a downstream effector of Wnt5a. These results highlight a previously unreported role for host-expressed Wnt5a in ovarian cancer metastasis and suggest Fgr as a novel target for inhibition of ovarian cancer metastatic progression.Significance: This study establishes host-derived Wnt5a, expressed by peritoneal mesothelial cells and adipocytes, as a primary regulator of ovarian cancer intraperitoneal metastatic dissemination and identifies Fgr kinase as novel target for inhibition of metastasis.
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Affiliation(s)
- Marwa Asem
- Integrated Biomedical Sciences Program, University of Notre Dame, South Bend, Indiana
- Department of Chemistry and Biochemistry, University of Notre Dame, South Bend, Indiana
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
| | - Allison M Young
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
| | - Carlysa Oyama
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
| | | | - Yueying Liu
- Department of Chemistry and Biochemistry, University of Notre Dame, South Bend, Indiana
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
| | - Jing Yang
- Department of Chemistry and Biochemistry, University of Notre Dame, South Bend, Indiana
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
| | - Tyvette S Hilliard
- Department of Chemistry and Biochemistry, University of Notre Dame, South Bend, Indiana
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
| | - Jeffery Johnson
- Department of Chemistry and Biochemistry, University of Notre Dame, South Bend, Indiana
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
| | - Elizabeth I Harper
- Department of Chemistry and Biochemistry, University of Notre Dame, South Bend, Indiana
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
| | - Ian Guldner
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
- Department of Biological Sciences, University of Notre Dame; South Bend, Indiana
| | - Siyuan Zhang
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
- Department of Biological Sciences, University of Notre Dame; South Bend, Indiana
| | - Toni Page-Mayberry
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
| | - William J Kaliney
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
| | - M Sharon Stack
- Integrated Biomedical Sciences Program, University of Notre Dame, South Bend, Indiana.
- Department of Chemistry and Biochemistry, University of Notre Dame, South Bend, Indiana
- Harper Cancer Research Institute, University of Notre Dame, South Bend, Indiana
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17
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Bednarczyk M, Stege H, Grabbe S, Bros M. β2 Integrins-Multi-Functional Leukocyte Receptors in Health and Disease. Int J Mol Sci 2020; 21:E1402. [PMID: 32092981 PMCID: PMC7073085 DOI: 10.3390/ijms21041402] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/11/2020] [Accepted: 02/14/2020] [Indexed: 12/25/2022] Open
Abstract
β2 integrins are heterodimeric surface receptors composed of a variable α (CD11a-CD11d) and a constant β (CD18) subunit and are specifically expressed by leukocytes. The α subunit defines the individual functional properties of the corresponding β2 integrin, but all β2 integrins show functional overlap. They mediate adhesion to other cells and to components of the extracellular matrix (ECM), orchestrate uptake of extracellular material like complement-opsonized pathogens, control cytoskeletal organization, and modulate cell signaling. This review aims to delineate the tremendous role of β2 integrins for immune functions as exemplified by the phenotype of LAD-I (leukocyte adhesion deficiency 1) patients that suffer from strong recurrent infections. These immune defects have been largely attributed to impaired migratory and phagocytic properties of polymorphonuclear granulocytes. The molecular base for this inherited disease is a functional impairment of β2 integrins due to mutations within the CD18 gene. LAD-I patients are also predisposed for autoimmune diseases. In agreement, polymorphisms within the CD11b gene have been associated with autoimmunity. Consequently, β2 integrins have received growing interest as targets in the treatment of autoimmune diseases. Moreover, β2 integrin activity on leukocytes has been implicated in tumor development.
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Affiliation(s)
| | | | | | - Matthias Bros
- Department of Dermatology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany; (M.B.); (H.S.); (S.G.)
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18
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Ren C, Yuan Q, Jian X, Randazzo PA, Tang W, Wu D. Small GTPase ARF6 Is a Coincidence-Detection Code for RPH3A Polarization in Neutrophil Polarization. J Immunol 2020; 204:1012-1021. [PMID: 31924649 PMCID: PMC6994837 DOI: 10.4049/jimmunol.1901080] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 12/10/2019] [Indexed: 12/21/2022]
Abstract
Cell polarization is a key step for leukocytes adhesion and transmigration during leukocytes' inflammatory infiltration. Polarized localization of plasma membrane (PM) phosphatidylinositol-4-phosphate (PtdIns4P) directs the polarization of RPH3A, which contains a PtdIns4P binding site. Consequently, RPH3A mediates the RAB21 and PIP5K1C90 polarization, which is important for neutrophil adhesion to endothelia during inflammation. However, the mechanism by which RPH3A is recruited only to PM PtdIns4P rather than Golgi PtdIns4P remains unclear. By using ADP-ribosylation factor 6 (ARF6) small interfering RNA, ARF6 dominant-negative mutant ARF6(T27N), and ARF6 activation inhibitor SecinH3, we demonstrate that ARF6 plays an important role in the polarization of RPH3A, RAB21, and PIP5K1C90 in murine neutrophils. PM ARF6 is polarized and colocalized with RPH3A, RAB21, PIP5K1C90, and PM PtdIns4P in mouse and human neutrophils upon integrin stimulation. Additionally, ARF6 binds to RPH3A and enhances the interaction between the PM PtdIns4P and RPH3A. Consistent with functional roles of polarization of RPH3A, Rab21, and PIP5K1C90, ARF6 is also required for neutrophil adhesion on the inflamed endothelial layer. Our study reveals a previously unknown role of ARF6 in neutrophil polarization as being the coincidence-detection code with PM PtdIns4P. Cooperation of ARF6 and PM PtdIns4P direct RPH3A polarization, which is important for neutrophil firm adhesion to endothelia.
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Affiliation(s)
- Chunguang Ren
- Department of Pharmacology, Vascular Biology and Therapeutic Program, School of Medicine, Yale University, New Haven, CT 06520; and
| | - Qianying Yuan
- Department of Pharmacology, Vascular Biology and Therapeutic Program, School of Medicine, Yale University, New Haven, CT 06520; and
| | - Xiaoying Jian
- Laboratory of Cellular and Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Paul A Randazzo
- Laboratory of Cellular and Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Wenwen Tang
- Department of Pharmacology, Vascular Biology and Therapeutic Program, School of Medicine, Yale University, New Haven, CT 06520; and
| | - Dianqing Wu
- Department of Pharmacology, Vascular Biology and Therapeutic Program, School of Medicine, Yale University, New Haven, CT 06520; and
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19
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Gross CC, Meyer C, Bhatia U, Yshii L, Kleffner I, Bauer J, Tröscher AR, Schulte-Mecklenbeck A, Herich S, Schneider-Hohendorf T, Plate H, Kuhlmann T, Schwaninger M, Brück W, Pawlitzki M, Laplaud DA, Loussouarn D, Parratt J, Barnett M, Buckland ME, Hardy TA, Reddel SW, Ringelstein M, Dörr J, Wildemann B, Kraemer M, Lassmann H, Höftberger R, Beltrán E, Dornmair K, Schwab N, Klotz L, Meuth SG, Martin-Blondel G, Wiendl H, Liblau R. CD8 + T cell-mediated endotheliopathy is a targetable mechanism of neuro-inflammation in Susac syndrome. Nat Commun 2019; 10:5779. [PMID: 31852955 PMCID: PMC6920411 DOI: 10.1038/s41467-019-13593-5] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 11/11/2019] [Indexed: 12/19/2022] Open
Abstract
Neuroinflammation is often associated with blood-brain-barrier dysfunction, which contributes to neurological tissue damage. Here, we reveal the pathophysiology of Susac syndrome (SuS), an enigmatic neuroinflammatory disease with central nervous system (CNS) endotheliopathy. By investigating immune cells from the blood, cerebrospinal fluid, and CNS of SuS patients, we demonstrate oligoclonal expansion of terminally differentiated activated cytotoxic CD8+ T cells (CTLs). Neuropathological data derived from both SuS patients and a newly-developed transgenic mouse model recapitulating the disease indicate that CTLs adhere to CNS microvessels in distinct areas and polarize granzyme B, which most likely results in the observed endothelial cell injury and microhemorrhages. Blocking T-cell adhesion by anti-α4 integrin-intervention ameliorates the disease in the preclinical model. Similarly, disease severity decreases in four SuS patients treated with natalizumab along with other therapy. Our study identifies CD8+ T-cell-mediated endotheliopathy as a key disease mechanism in SuS and highlights therapeutic opportunities.
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Affiliation(s)
- Catharina C Gross
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany.
| | - Céline Meyer
- Centre de Physiopathologie Toulouse-Purpan (CPTP), Université de Toulouse, CNRS, Inserm, UPS, CHU Purpan - BP 3028 - 31024, Toulouse Cedex 3, Toulouse, France
| | - Urvashi Bhatia
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Lidia Yshii
- Centre de Physiopathologie Toulouse-Purpan (CPTP), Université de Toulouse, CNRS, Inserm, UPS, CHU Purpan - BP 3028 - 31024, Toulouse Cedex 3, Toulouse, France
| | - Ilka Kleffner
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
- Department of Neurology, University Hospital Knappschaftskrankenhaus Bochum, Ruhr University Bochum, In der Schornau 23-25, 44892, Bochum, Germany
| | - Jan Bauer
- Department of Neuroimmunology, Center for Brain Research, Medical University of Vienna, Spitalgasse 4, 1090, Vienna, Austria
| | - Anna R Tröscher
- Department of Neuroimmunology, Center for Brain Research, Medical University of Vienna, Spitalgasse 4, 1090, Vienna, Austria
| | - Andreas Schulte-Mecklenbeck
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Sebastian Herich
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Tilman Schneider-Hohendorf
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Henrike Plate
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Tanja Kuhlmann
- Institute of Neuropathology, University Hospital Münster, University of Münster, Pottkamp 2, 48149, Münster, Germany
| | - Markus Schwaninger
- Institute of Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Germany
| | - Wolfgang Brück
- Institute of Neuropathology, University Medical Center Göttingen, Robert-Koch-Straße 40, 37099, Göttingen, Germany
| | - Marc Pawlitzki
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - David-Axel Laplaud
- UMR 1064, INSERM, Centre de Recherche en Transplantation et Immunologie, Université de Nantes, CHU Nantes - Hôtel Dieu Bd Jean Monnet, 44093, Nantes Cedex 01, France
- Service Neurologie, CHU Nantes, Nantes, France
| | - Delphine Loussouarn
- Service d'Anatomo-Pathologie, CHU Nantes, Hôtel-Dieu, rez-de-jardin, 44093, Nantes Cedex 1, France
| | - John Parratt
- Department of Neurology, Royal North Shore Hospital, Sydney, Australia
- Australia Northern Clinical School, University of Sydney, Reserve Road, St Leonards, Sydney, NSW, 2065, Australia
| | - Michael Barnett
- Brain and Mind Centre, Medical Faculty, University of Sydney, Mallett Street, Camperdown, Sydney, NSW, 2050, Australia
| | - Michael E Buckland
- Brain and Mind Centre, Medical Faculty, University of Sydney, Mallett Street, Camperdown, Sydney, NSW, 2050, Australia
- Department of Neuropathology, Royal Prince Alfred Hospital, 94, Mallett Street, Camperdown, Sydney, NSW, 2050, Australia
| | - Todd A Hardy
- Brain and Mind Centre, Medical Faculty, University of Sydney, Mallett Street, Camperdown, Sydney, NSW, 2050, Australia
- Department of Neurology, Concord Hospital, University of Sydney, Sydney, NSW, 2139, Australia
| | - Stephen W Reddel
- Brain and Mind Centre, Medical Faculty, University of Sydney, Mallett Street, Camperdown, Sydney, NSW, 2050, Australia
- Department of Neurology, Concord Hospital, University of Sydney, Sydney, NSW, 2139, Australia
| | - Marius Ringelstein
- Department of Neurology, Medical Faculty, Heinrich Heine University, Moorenstraße 5, 40225, Düsseldorf, Germany
- Department of Neurology, Center of Neurology und Neuropsychiatry, LVR-Klinikum, Heinrich Heine University Düsseldorf, Bergische Landstraße 2, 40629, Düsseldorf, Germany
| | - Jan Dörr
- Max Delbrueck Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, NeuroCure, Experimental and Clinical Research Center, Charitéplatz 1, 10117, Berlin, Germany
| | - Brigitte Wildemann
- Molecular Neuroimmunology Group, Department of Neurology, University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Markus Kraemer
- Department of Neurology, Medical Faculty, Heinrich Heine University, Moorenstraße 5, 40225, Düsseldorf, Germany
- Department of Neurology, Alfried Krupp Hospital, Alfried-Krupp-Strasse 21, 45130, Essen, Germany
| | - Hans Lassmann
- Department of Neuroimmunology, Center for Brain Research, Medical University of Vienna, Spitalgasse 4, 1090, Vienna, Austria
| | - Romana Höftberger
- Institute of Neurology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Eduardo Beltrán
- Institute of Clinical Neuroimmunology, Biomedical Center and Hospital of the Ludwig-Maximilians-University Munich, Großhaderner Straße 9, Martinsried, 82152, Munich, Germany
| | - Klaus Dornmair
- Institute of Clinical Neuroimmunology, Biomedical Center and Hospital of the Ludwig-Maximilians-University Munich, Großhaderner Straße 9, Martinsried, 82152, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Nicholas Schwab
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Luisa Klotz
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
| | - Sven G Meuth
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany
- Cells in Motion (CiM), Münster, Germany
| | - Guillaume Martin-Blondel
- Centre de Physiopathologie Toulouse-Purpan (CPTP), Université de Toulouse, CNRS, Inserm, UPS, CHU Purpan - BP 3028 - 31024, Toulouse Cedex 3, Toulouse, France
- Department of Infectious and Tropical Diseases, Toulouse University Hospital, Toulouse, France
| | - Heinz Wiendl
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, University of Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Germany.
- Australia Northern Clinical School, University of Sydney, Reserve Road, St Leonards, Sydney, NSW, 2065, Australia.
- Cells in Motion (CiM), Münster, Germany.
| | - Roland Liblau
- Centre de Physiopathologie Toulouse-Purpan (CPTP), Université de Toulouse, CNRS, Inserm, UPS, CHU Purpan - BP 3028 - 31024, Toulouse Cedex 3, Toulouse, France.
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20
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Gouttefangeas C, Schuhmacher J, Dimitrov S. Adhering to adhesion: assessing integrin conformation to monitor T cells. Cancer Immunol Immunother 2019; 68:1855-1863. [PMID: 31309255 PMCID: PMC11028104 DOI: 10.1007/s00262-019-02365-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/02/2019] [Indexed: 11/27/2022]
Abstract
Monitoring T cells is of major importance for the development of immunotherapies. Recent sophisticated assays can address particular aspects of the anti-tumor T-cell repertoire or support very large-scale immune screening for biomarker discovery. Robust methods for the routine assessment of the quantity and quality of antigen-specific T cells remain, however, essential. This review discusses selected methods that are commonly used for T-cell monitoring and summarizes the advantages and limitations of these assays. We also present a new functional assay, which specifically detects activated β2 integrins within a very short time following CD8+ T-cell stimulation. Because of its unique and favorable characteristics, this assay could be useful for implementation into our T-cell monitoring toolbox.
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Affiliation(s)
- Cécile Gouttefangeas
- Department of Immunology, Interfaculty Institute for Cell Biology, Eberhard Karls University, Auf der Morgenstelle 15, 72076, Tübingen, Germany.
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Partner Site Tübingen, Tübingen, Germany.
| | - Juliane Schuhmacher
- Department of Immunology, Interfaculty Institute for Cell Biology, Eberhard Karls University, Auf der Morgenstelle 15, 72076, Tübingen, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Partner Site Tübingen, Tübingen, Germany
| | - Stoyan Dimitrov
- Institute of Medical Psychology and Behavioral Neurobiology, Eberhard Karls University, Otfried-Müller Straße 25, 72076, Tübingen, Germany.
- German Center for Diabetes Research, 72076, Tübingen, Germany.
- Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich at the University of Tübingen (IDM), Otfried-Müller Straße 10, 72076, Tübingen, Germany.
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21
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Klinger M, Zugmaier G, Nägele V, Goebeler ME, Brandl C, Stelljes M, Lassmann H, von Stackelberg A, Bargou RC, Kufer P. Adhesion of T Cells to Endothelial Cells Facilitates Blinatumomab-Associated Neurologic Adverse Events. Cancer Res 2019; 80:91-101. [PMID: 31662326 DOI: 10.1158/0008-5472.can-19-1131] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 09/13/2019] [Accepted: 10/23/2019] [Indexed: 11/16/2022]
Abstract
Blinatumomab, a CD19/CD3-bispecific T-cell engager (BiTE) immuno-oncology therapy for the treatment of B-cell malignancies, is associated with neurologic adverse events in a subgroup of patients. Here, we provide evidence for a two-step process for the development of neurologic adverse events in response to blinatumomab: (i) blinatumomab induced B-cell-independent redistribution of peripheral T cells, including T-cell adhesion to blood vessel endothelium, endothelial activation, and T-cell transmigration into the perivascular space, where (ii) blinatumomab induced B-cell-dependent T-cell activation and cytokine release to potentially trigger neurologic adverse events. Evidence for this process includes (i) the coincidence of T-cell redistribution and the early occurrence of most neurologic adverse events, (ii) T-cell transmigration through brain microvascular endothelium, (iii) detection of T cells, B cells, and blinatumomab in cerebrospinal fluid, (iv) blinatumomab-induced T-cell rolling and adhesion to vascular endothelial cells in vitro, and (v) the ability of antiadhesive agents to interfere with blinatumomab-induced interactions between T cells and vascular endothelial cells in vitro and in patients. On the basis of these observations, we propose a model that could be the basis of mitigation strategies for neurologic adverse events associated with blinatumomab treatment and other T-cell therapies. SIGNIFICANCE: This study proposes T-cell adhesion to endothelial cells as a necessary but insufficient first step for development of blinatumomab-associated neurologic adverse events and suggests interfering with adhesion as a mitigation approach.
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MESH Headings
- Adult
- Antibodies, Bispecific/adverse effects
- B-Lymphocytes/drug effects
- B-Lymphocytes/immunology
- Brain/blood supply
- Brain/immunology
- Brain/pathology
- Cell Adhesion/drug effects
- Cell Adhesion/immunology
- Cell Line
- Child
- Clinical Trials, Phase I as Topic
- Clinical Trials, Phase II as Topic
- Endothelial Cells/drug effects
- Endothelial Cells/immunology
- Endothelium, Vascular/cytology
- Endothelium, Vascular/immunology
- Endothelium, Vascular/pathology
- Female
- Humans
- Incidence
- Lymphoma, Non-Hodgkin/blood
- Lymphoma, Non-Hodgkin/drug therapy
- Lymphoma, Non-Hodgkin/immunology
- Male
- Microvessels/cytology
- Microvessels/immunology
- Microvessels/pathology
- Neoplasm Recurrence, Local/drug therapy
- Neoplasm Recurrence, Local/immunology
- Neurotoxicity Syndromes/epidemiology
- Neurotoxicity Syndromes/immunology
- Neurotoxicity Syndromes/pathology
- Neurotoxicity Syndromes/prevention & control
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/blood
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/drug therapy
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/immunology
- T-Lymphocytes/drug effects
- T-Lymphocytes/immunology
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Affiliation(s)
| | | | | | | | | | | | - Hans Lassmann
- Department of Neuroimmunology, Medical University of Vienna, Vienna, Austria
| | - Arend von Stackelberg
- Department of Pediatrics, Division of Oncology and Hematology, Charité, Berlin, Germany
| | - Ralf C Bargou
- Comprehensive Cancer Center Mainfranken, University Würzburg, Würzburg, Germany
| | - Peter Kufer
- Amgen Research (Munich) GmbH, Munich, Germany
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22
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Akk A, Springer LE, Yang L, Hamilton-Burdess S, Lambris JD, Yan H, Hu Y, Wu X, Hourcade DE, Miller MJ, Pham CTN. Complement activation on neutrophils initiates endothelial adhesion and extravasation. Mol Immunol 2019; 114:629-642. [PMID: 31542608 PMCID: PMC6815348 DOI: 10.1016/j.molimm.2019.09.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 09/08/2019] [Accepted: 09/08/2019] [Indexed: 01/07/2023]
Abstract
Neutrophils are essential to the pathogenesis of many inflammatory diseases. In the autoantibody-mediated K/BxN model of inflammatory arthritis, the alternative pathway (AP) of complement and Fc gamma receptors (FcγRs) are required for disease development while the classical pathway is dispensable. The reason for this differential requirement is unknown. We show that within minutes of K/BxN serum injection complement activation (CA) is detected on circulating neutrophils, as evidenced by cell surface C3 fragment deposition. CA requires the AP factor B and FcγRs but not C4, implying that engagement of FcγRs by autoantibody or immune complexes directly triggers AP C3 convertase assembly. The absence of C5 does not prevent CA on neutrophils but diminishes the upregulation of adhesion molecules. In vivo two-photon microscopy reveals that CA on neutrophils is critical for neutrophil extravasation and generation of C5a at the site of inflammation. C5a stimulates the release of neutrophil proteases, which contribute to the degradation of VE-cadherin, an adherens junction protein that regulates endothelial barrier integrity. C5a receptor antagonism blocks the extracellular release of neutrophil proteases, suppressing VE-cadherin degradation and neutrophil transendothelial migration in vivo. These results elucidate the AP-dependent intravascular neutrophil-endothelial interactions that initiate the inflammatory cascade in this disease model but may be generalizable to neutrophil extravasation in other inflammatory processes.
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Affiliation(s)
- Antonina Akk
- Division of Rheumatology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Luke E Springer
- Division of Rheumatology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Lihua Yang
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Samantha Hamilton-Burdess
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - John D Lambris
- Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Huimin Yan
- Division of Rheumatology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Ying Hu
- Division of Rheumatology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Xiaobo Wu
- Division of Rheumatology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Dennis E Hourcade
- Division of Rheumatology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Mark J Miller
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA.
| | - Christine T N Pham
- Division of Rheumatology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA; John Cochran VA Medical Center, Saint Louis, MO, USA.
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23
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Erpenbeck L, Gruhn AL, Kudryasheva G, Günay G, Meyer D, Busse J, Neubert E, Schön MP, Rehfeldt F, Kruss S. Effect of Adhesion and Substrate Elasticity on Neutrophil Extracellular Trap Formation. Front Immunol 2019; 10:2320. [PMID: 31632402 PMCID: PMC6781793 DOI: 10.3389/fimmu.2019.02320] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 09/13/2019] [Indexed: 12/29/2022] Open
Abstract
Neutrophils are the most abundant type of white blood cells. Upon stimulation, they are able to decondense and release their chromatin as neutrophil extracellular traps (NETs). This process (NETosis) is part of immune defense mechanisms but also plays an important role in many chronic and inflammatory diseases such as atherosclerosis, rheumatoid arthritis, diabetes, and cancer. For this reason, much effort has been invested into understanding biochemical signaling pathways in NETosis. However, the impact of the mechanical micro-environment and adhesion on NETosis is not well-understood. Here, we studied how adhesion and especially substrate elasticity affect NETosis. We employed polyacrylamide (PAA) gels with distinctly defined elasticities (Young's modulus E) within the physiologically relevant range from 1 to 128 kPa and coated the gels with integrin ligands (collagen I, fibrinogen). Neutrophils were cultured on these substrates and stimulated with potent inducers of NETosis: phorbol 12-myristate 13-acetate (PMA) and lipopolysaccharide (LPS). Interestingly, PMA-induced NETosis was neither affected by substrate elasticity nor by different integrin ligands. In contrast, for LPS stimulation, NETosis rates increased with increasing substrate elasticity (E > 20 kPa). LPS-induced NETosis increased with increasing cell contact area, while PMA-induced NETosis did not require adhesion at all. Furthermore, inhibition of phosphatidylinositide 3 kinase (PI3K), which is involved in adhesion signaling, completely abolished LPS-induced NETosis but only slightly decreased PMA-induced NETosis. In summary, we show that LPS-induced NETosis depends on adhesion and substrate elasticity while PMA-induced NETosis is completely independent of adhesion.
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Affiliation(s)
- Luise Erpenbeck
- Department of Dermatology, Venereology and Allergology, University Medical Center, Göttingen University, Göttingen, Germany
| | - Antonia Luise Gruhn
- Department of Dermatology, Venereology and Allergology, University Medical Center, Göttingen University, Göttingen, Germany
| | - Galina Kudryasheva
- Third Institute of Physics–Biophysics, Göttingen University, Göttingen, Germany
| | - Gökhan Günay
- Department of Dermatology, Venereology and Allergology, University Medical Center, Göttingen University, Göttingen, Germany
- Department of Chemistry, Institute of Physical Chemistry, Göttingen University, Göttingen, Germany
| | - Daniel Meyer
- Department of Chemistry, Institute of Physical Chemistry, Göttingen University, Göttingen, Germany
| | - Julia Busse
- Department of Dermatology, Venereology and Allergology, University Medical Center, Göttingen University, Göttingen, Germany
| | - Elsa Neubert
- Department of Dermatology, Venereology and Allergology, University Medical Center, Göttingen University, Göttingen, Germany
- Department of Chemistry, Institute of Physical Chemistry, Göttingen University, Göttingen, Germany
| | - Michael P. Schön
- Department of Dermatology, Venereology and Allergology, University Medical Center, Göttingen University, Göttingen, Germany
- Lower Saxony Institute of Occupational Dermatology, Göttingen, Germany
| | - Florian Rehfeldt
- Third Institute of Physics–Biophysics, Göttingen University, Göttingen, Germany
| | - Sebastian Kruss
- Department of Chemistry, Institute of Physical Chemistry, Göttingen University, Göttingen, Germany
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24
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Cotrim-Sousa L, Freire-Assis A, Pezzi N, Tanaka PP, Oliveira EH, Passos GA. Adhesion between medullary thymic epithelial cells and thymocytes is regulated by miR-181b-5p and miR-30b. Mol Immunol 2019; 114:600-611. [PMID: 31539668 DOI: 10.1016/j.molimm.2019.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 09/03/2019] [Accepted: 09/05/2019] [Indexed: 12/16/2022]
Abstract
In this work, we demonstrate that adhesion between medullary thymic epithelial cells (mTECs) and thymocytes is controlled by miRNAs. Adhesion between mTECs and developing thymocytes is essential for triggering negative selection (NS) of autoreactive thymocytes that occurs in the thymus. Immune recognition is mediated by the MHC / TCR receptor, whereas adhesion molecules hold cell-cell interaction stability. Indeed, these processes must be finely controlled, if it is not, it may lead to aggressive autoimmunity. Conversely, the precise molecular genetic control of mTEC-thymocyte adhesion is largely unclear. Here, we asked whether miRNAs would be controlling this process through the posttranscriptional regulation of mRNAs that encode adhesion molecules. For this, we used small interfering RNA to knockdown (KD) Dicer mRNA in vitro in a murine mTEC line. A functional assay with fresh murine thymocytes co-cultured with mTECs showed that single-positive (SP) CD4 and CD8 thymocyte adhesion was increased after Dicer KD and most adherent subtype was CD8 SP cells. Analysis of broad mTEC transcriptional expression showed that Dicer KD led to the modulation of 114 miRNAs and 422 mRNAs, including those encoding cell adhesion or extracellular matrix proteins, such as Lgals9, Lgals3pb, Tnc and Cd47. Analysis of miRNA-mRNA networks followed by miRNA mimic transfection showed that these mRNAs are under the control of miR-181b-5p and miR-30b*, which may ultimately control mTEC-thymocyte adhesion. The expression of CD80 surface marker in mTECs was increased after Dicer KD following thymocyte adhesion. This indicates the existence of new mechanisms in mTECs that involve the synergistic action of thymocyte adhesion and regulatory miRNAs.
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Affiliation(s)
- Larissa Cotrim-Sousa
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Amanda Freire-Assis
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil; State University of Minas Gerais, Passos, MG, Brazil
| | - Nicole Pezzi
- Graduate Program in Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Pedro Paranhos Tanaka
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Ernna Hérida Oliveira
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Geraldo Aleixo Passos
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil; Graduate Program in Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil; Laboratory of Genetics and Molecular Biology, Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, USP, Ribeirão Preto, SP, Brazil.
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25
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Schroer AK, Bersi MR, Clark CR, Zhang Q, Sanders LH, Hatzopoulos AK, Force TL, Majka SM, Lal H, Merryman WD. Cadherin-11 blockade reduces inflammation-driven fibrotic remodeling and improves outcomes after myocardial infarction. JCI Insight 2019; 4:131545. [PMID: 31534054 PMCID: PMC6795284 DOI: 10.1172/jci.insight.131545] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 08/21/2019] [Indexed: 12/17/2022] Open
Abstract
Over one million Americans experience myocardial infarction (MI) annually, and the resulting scar and subsequent cardiac fibrosis gives rise to heart failure. A specialized cell-cell adhesion protein, cadherin-11 (CDH11), contributes to inflammation and fibrosis in rheumatoid arthritis, pulmonary fibrosis, and aortic valve calcification but has not been studied in myocardium after MI. MI was induced by ligation of the left anterior descending artery in mice with either heterozygous or homozygous knockout of CDH11, wild-type mice receiving bone marrow transplants from Cdh11-deficient animals, and wild-type mice treated with a functional blocking antibody against CDH11 (SYN0012). Flow cytometry revealed significant CDH11 expression in noncardiomyocyte cells after MI. Animals given SYN0012 had improved cardiac function, as measured by echocardiogram, reduced tissue remodeling, and altered transcription of inflammatory and proangiogenic genes. Targeting CDH11 reduced bone marrow-derived myeloid cells and increased proangiogenic cells in the heart 3 days after MI. Cardiac fibroblast and macrophage interactions increased IL-6 secretion in vitro. Our findings suggest that CDH11-expressing cells contribute to inflammation-driven fibrotic remodeling after MI and that targeting CDH11 with a blocking antibody improves outcomes by altering recruitment of bone marrow-derived cells, limiting the macrophage-induced expression of IL-6 by fibroblasts and promoting vascularization.
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Affiliation(s)
| | | | | | | | | | | | | | - Susan M. Majka
- Department of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University, Nashville, Tennessee, USA
| | - Hind Lal
- Department of Cardiovascular Medicine, and
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Abstract
The signaling lymphocytic activation molecule (SLAM) family is comprised of nine distinct receptors that are expressed exclusively on hematopoietic cells. Most of these transmembrane receptors are homotypic by nature and downstream signaling occurs when cells that express the same SLAM receptor interact. Previous studies have determined that anti-SLAMF6 antibodies can have a therapeutic effect in autoimmunity and cancer. However, little is known about the role of SLAMF6 in the adaptive immune responses and in order to utilize SLAMF6 interventional approaches, a better understanding of the biology of this receptor in T cell is warranted. Accordingly, the objective of our study was to investigate both functionally and structurally the role of SLAMF6 in T cell receptor (TCR) mediated responses. Biochemical and genetic experiments revealed that SLAMF6 was required for productive TCR downstream signaling. Interestingly, SLAMF6 ectodomain was required for its function, but not for its recruitment to the immunological synapse. Flow-cytometry analysis demonstrated that tyrosine 308 of the tail of SLAMF6 was crucial for its ability to enhance T cell function. Imaging studies revealed that SLAMF6 clustering, specifically with the TCR, resulted in dramatic increase in downstream signaling. Mechanistically, we showed that SLAMF6 enhanced T cell function by increasing T cell adhesiveness through activation of the small GTPase Rap1. Taken together SLAMF6 is an important regulator of T cell activation where both its ectodomain and its endodomain contribute differentially to T cell functions. Additional studies are underway to better evaluate the role of anti-SLAMF6 approaches in specific human diseases.
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Affiliation(s)
- Matthew A. Dragovich
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, New York, United States of America
- Division of Rheumatology, Columbia University Medical Center, New York, New York, United States of America
| | - Kieran Adam
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, New York, United States of America
- Division of Rheumatology, Columbia University Medical Center, New York, New York, United States of America
| | - Marianne Strazza
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, New York, United States of America
- Division of Rheumatology, Columbia University Medical Center, New York, New York, United States of America
| | - Anna S. Tocheva
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, New York, United States of America
- Division of Rheumatology, Columbia University Medical Center, New York, New York, United States of America
| | - Michael Peled
- Division of Pulmonary Medicine, Sheba Medical Center, Ramat Gan, Israel
| | - Adam Mor
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, New York, United States of America
- Division of Rheumatology, Columbia University Medical Center, New York, New York, United States of America
- * E-mail:
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Miyabe Y, Miyabe C, Mani V, Mempel TR, Luster AD. Atypical complement receptor C5aR2 transports C5a to initiate neutrophil adhesion and inflammation. Sci Immunol 2019; 4:eaav5951. [PMID: 31076525 DOI: 10.1126/sciimmunol.aav5951] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 03/29/2019] [Indexed: 12/14/2022]
Abstract
Chemoattractant-induced arrest of circulating leukocytes and their subsequent diapedesis is a fundamental component of inflammation. However, how tissue-derived chemoattractants are transported into the blood vessel lumen to induce leukocyte entry into tissue is not well understood. Here, intravital microscopy in live mice has shown that the "atypical" complement C5a receptor 2 (C5aR2) and the atypical chemokine receptor 1 (ACKR1) expressed on endothelial cells were required for the transport of C5a and CXCR2 chemokine ligands, respectively, into the vessel lumen in a murine model of immune complex-induced arthritis. Transported C5a was required to initiate C5aR1-mediated neutrophil arrest, whereas transported chemokines were required to initiate CXCR2-dependent neutrophil transdendothelial migration. These findings provide new insights into how atypical chemoattractant receptors collaborate with "classical" signaling chemoattractant receptors to control distinct steps in the recruitment of neutrophils into tissue sites of inflammation.
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Affiliation(s)
- Yoshishige Miyabe
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Chie Miyabe
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Vinidhra Mani
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Thorsten R Mempel
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrew D Luster
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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28
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Vallières F, Durocher I, Girard D. Biological activities of interleukin (IL)-21 in human monocytes and macrophages. Cell Immunol 2019; 337:62-70. [PMID: 30765203 DOI: 10.1016/j.cellimm.2019.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 01/31/2019] [Accepted: 02/08/2019] [Indexed: 01/13/2023]
Abstract
The biological roles of interleukin (IL)-21 in human monocytes and macrophages have been neglected. We previously demonstrated that IL-21 induce phagocytosis and established that Syk is a new molecular target of IL-21. Herein, we found that IL-21 is not chemoattractant for immature THP-1 and primary monocytes but can increase the capacity of THP-1 cells (not primary monocytes) to adhere onto a cell substratum by a Syk-dependent mechanism without altering the expression of a panel of cell surface molecules. Unlike THP- 1 and monocytes, IL-21 can increase metalloproteinase (MMP)-9 secretion and activity in monocyte-derived macrophages (HMDM), as assessed by western blot and zymography experiments, respectively. We reported that IL-21 did not increase the production of IL-6 and the chemokines MIP-1α and GRO-α in HMDM. Therefore, IL-21 can increase functions other that phagocytosis, but this cytokine does not have a large spectrum of biological activities in monocytes and macrophages.
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Affiliation(s)
- Francis Vallières
- Laboratoire de recherche en inflammation et physiologie des granulocytes, Université du Québec, INRS-Institut Armand-Frappier, Laval, Québec, Canada
| | - Isabelle Durocher
- Laboratoire de recherche en inflammation et physiologie des granulocytes, Université du Québec, INRS-Institut Armand-Frappier, Laval, Québec, Canada
| | - Denis Girard
- Laboratoire de recherche en inflammation et physiologie des granulocytes, Université du Québec, INRS-Institut Armand-Frappier, Laval, Québec, Canada.
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Coppieters N, Merry S, Patel R, Highet B, Curtis MA. Polysialic acid masks neural cell adhesion molecule antigenicity. Brain Res 2018; 1710:199-208. [PMID: 30584926 DOI: 10.1016/j.brainres.2018.12.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 12/31/2022]
Abstract
The neural cell adhesion molecule (NCAM) is a transmembrane protein involved in major cellular processes. The addition of polysialic acid (PSA), a post-translational modification (PTM) almost exclusively carried by NCAM, alters NCAM properties and functions and is therefore tightly regulated. Changes in NCAM and PSA-NCAM take place during development and ageing and occur in various diseases. The presence of PTMs can reduce the accessibility of antibodies to their epitopes and lead to false negative results. Thus, it is vital to identify antibodies that can specifically detect their target regardless of the presence of PTMs. In the present study, four commercially available NCAM antibodies were characterized by western blot and immunocytochemistry. Antibody specificity was determined by decreasing NCAM expression with small interfering RNA and subsequently determining whether the antibodies still produced a signal. In addition, PSA was digested with endoneuraminidase N to assess whether removing PSA improves NCAM detection with these antibodies. Our study revealed that the presence of PSA on NCAM reduced antibody accessibility to the epitope and consequently masked NCAM antigenicity for both techniques investigated. Moreover, three of the four antibodies tested were specific for the detection of NCAM by western blot and by immunocytochemistry. Altogether, this study demonstrates the importance of choosing the correct antibody to study NCAM depending on the technique of interest and underlines the importance of taking PTMs into account when using antibody-based techniques for the study of NCAM.
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Affiliation(s)
- Natacha Coppieters
- Centre for Brain Research, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand; Department of Anatomy and Medical Imaging, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Sonya Merry
- Centre for Brain Research, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand; Department of Anatomy and Medical Imaging, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Rachna Patel
- Centre for Brain Research, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand; Department of Anatomy and Medical Imaging, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Blake Highet
- Centre for Brain Research, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand; Department of Anatomy and Medical Imaging, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Maurice A Curtis
- Centre for Brain Research, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand; Department of Anatomy and Medical Imaging, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand.
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Swain S, Roe MM, Sebrell TA, Sidar B, Dankoff J, VanAusdol R, Smythies LE, Smith PD, Bimczok D. CD103 (αE Integrin) Undergoes Endosomal Trafficking in Human Dendritic Cells, but Does Not Mediate Epithelial Adhesion. Front Immunol 2018; 9:2989. [PMID: 30622531 PMCID: PMC6308147 DOI: 10.3389/fimmu.2018.02989] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 12/04/2018] [Indexed: 12/20/2022] Open
Abstract
Dendritic cell (DC) expression of CD103, the α subunit of αEβ7 integrin, is thought to enable DC interactions with E-cadherin-expressing gastrointestinal epithelia for improved mucosal immunosurveillance. In the stomach, efficient DC surveillance of the epithelial barrier is crucial for the induction of immune responses to H. pylori, the causative agent of peptic ulcers and gastric cancer. However, gastric DCs express only low levels of surface CD103, as we previously showed. We here tested the hypothesis that intracellular pools of CD103 in human gastric DCs can be redistributed to the cell surface for engagement of epithelial cell-expressed E-cadherin to promote DC-epithelial cell adhesion. In support of our hypothesis, immunofluorescence analysis of tissue sections showed that CD103+ gastric DCs were preferentially localized within the gastric epithelial layer. Flow cytometry and imaging cytometry revealed that human gastric DCs expressed intracellular CD103, corroborating our previous findings in monocyte-derived DCs (MoDCs). Using confocal microscopy, we show that CD103 was present in endosomal compartments, where CD103 partially co-localized with clathrin, early endosome antigen-1 and Rab11, suggesting that CD103 undergoes endosomal trafficking similar to β1 integrins. Dynamic expression of CD103 on human MoDCs was confirmed by internalization assay. To analyze whether DC-expressed CD103 promotes adhesion to E-cadherin, we performed adhesion and spreading assays on E-cadherin-coated glass slides. In MoDCs generated in the presence of retinoic acid, which express increased CD103, intracellular CD103 significantly redistributed toward the E-cadherin-coated glass surface. However, DCs spreading and adhesion did not differ between E-cadherin-coated slides and slides coated with serum alone. In adhesion assays using E-cadherin-positive HT-29 cells, DC binding was significantly improved by addition of Mn2+ and decreased in the presence of EGTA, consistent with the dependence of integrin-based interactions on divalent cations. However, retinoic acid failed to increase DC adhesion, and a CD103 neutralizing antibody was unable to inhibit DC binding to the E-cadherin positive cells. In contrast, a blocking antibody to DC-expressed E-cadherin significantly reduced DC binding to the epithelium. Overall, these data indicate that CD103 engages in DC-epithelial cell interactions upon contact with epithelial E-cadherin, but is not a major driver of DC adhesion to gastrointestinal epithelia.
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Affiliation(s)
- Steve Swain
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States
| | - Mandi M. Roe
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States
| | - Thomas A. Sebrell
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States
| | - Barkan Sidar
- Chemical and Biological Engineering Department, Montana State University, Bozeman, MT, United States
| | - Jennifer Dankoff
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States
| | - Rachel VanAusdol
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States
| | - Lesley E. Smythies
- Division of Gastroenterology and Hepatology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Phillip D. Smith
- Division of Gastroenterology and Hepatology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Diane Bimczok
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States
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31
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Domínguez-Luis MJ, Armas-González E, Herrera-García A, Arce-Franco M, Feria M, Vicente-Manzanares M, Martínez-Ruiz A, Sánchez-Madrid F, Díaz-González F. L-selectin expression is regulated by CXCL8-induced reactive oxygen species produced during human neutrophil rolling. Eur J Immunol 2018; 49:386-397. [PMID: 30443903 DOI: 10.1002/eji.201847710] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 09/21/2018] [Accepted: 10/29/2018] [Indexed: 12/11/2022]
Abstract
Neutrophils destroy invading microorganisms by phagocytosis by bringing them into contact with bactericidal substances, among which ROS are the most important. However, ROS also function as important physiological regulators of cellular signaling pathways. Here, we addressed the involvement of oxygen derivatives in the regulation of human neutrophil rolling, an essential component of the inflammatory response. Flow experiments using dihydroethidium-preloaded human neutrophils showed that these cells initiate an early production of intracellular ROS during the rolling phase of the adhesion cascade, a phenomenon that required cell rolling, and the interaction of the chemokine receptor CXCR2 with their ligand CXCL8. Flow cytometry experiments demonstrated that L-selectin shedding in neutrophils is triggered by ROS through an autocrine-paracrine mechanism. Preincubation of neutrophils with the NADPH oxidase complex inhibitor diphenyleniodonium chloride significantly increased the number of rolling neutrophils on endothelial cells. Interestingly, the same effect was observed when CXCL8 signaling was interfered using either a blocking monoclonal antibody or an inhibitor of its receptor. These findings indicate that, in response to CXCL8, neutrophils initiate ROS production during the rolling phase of the inflammatory response. This very early ROS production might participate in the modulation of the inflammatory response by inducing L-selectin shedding in neutrophils.
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Affiliation(s)
| | | | - Ada Herrera-García
- Servicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain
| | - María Arce-Franco
- Servicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain
| | - Manuel Feria
- Departamento de Farmacología, Facultad de Medicina, Universidad de La Laguna, La Laguna, Spain
| | | | - Antonio Martínez-Ruiz
- Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- Centro de Investigaciones Biomedicas en Red en Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Francisco Sánchez-Madrid
- Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- Centro de Investigaciones Biomedicas en Red en Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Federico Díaz-González
- Servicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain
- Departamento de Medicina, Facultad de Medicina, Universidad de La Laguna, Tenerife, Spain
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32
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de Jong SJ, Créquer A, Matos I, Hum D, Gunasekharan V, Lorenzo L, Jabot-Hanin F, Imahorn E, Arias AA, Vahidnezhad H, Youssefian L, Markle JG, Patin E, D'Amico A, Wang CQF, Full F, Ensser A, Leisner TM, Parise LV, Bouaziz M, Maya NP, Cadena XR, Saka B, Saeidian AH, Aghazadeh N, Zeinali S, Itin P, Krueger JG, Laimins L, Abel L, Fuchs E, Uitto J, Franco JL, Burger B, Orth G, Jouanguy E, Casanova JL. The human CIB1-EVER1-EVER2 complex governs keratinocyte-intrinsic immunity to β-papillomaviruses. J Exp Med 2018; 215:2289-2310. [PMID: 30068544 PMCID: PMC6122964 DOI: 10.1084/jem.20170308] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 05/21/2018] [Accepted: 07/02/2018] [Indexed: 02/04/2023] Open
Abstract
Patients with epidermodysplasia verruciformis (EV) and biallelic null mutations of TMC6 (encoding EVER1) or TMC8 (EVER2) are selectively prone to disseminated skin lesions due to keratinocyte-tropic human β-papillomaviruses (β-HPVs), which lack E5 and E8. We describe EV patients homozygous for null mutations of the CIB1 gene encoding calcium- and integrin-binding protein-1 (CIB1). CIB1 is strongly expressed in the skin and cultured keratinocytes of controls but not in those of patients. CIB1 forms a complex with EVER1 and EVER2, and CIB1 proteins are not expressed in EVER1- or EVER2-deficient cells. The known functions of EVER1 and EVER2 in human keratinocytes are not dependent on CIB1, and CIB1 deficiency does not impair keratinocyte adhesion or migration. In keratinocytes, the CIB1 protein interacts with the HPV E5 and E8 proteins encoded by α-HPV16 and γ-HPV4, respectively, suggesting that this protein acts as a restriction factor against HPVs. Collectively, these findings suggest that the disruption of CIB1-EVER1-EVER2-dependent keratinocyte-intrinsic immunity underlies the selective susceptibility to β-HPVs of EV patients.
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Affiliation(s)
- Sarah Jill de Jong
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | - Amandine Créquer
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | - Irina Matos
- Robin Chemers Neustein Laboratory of Mammalian Development and Cell Biology, The Rockefeller University, New York, NY
| | - David Hum
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | | | - Lazaro Lorenzo
- Laboratory of Human Genetics of Infectious Diseases, Institut National de la Santé et de la Recherche Médicale, UMR 1163, Necker Hospital for Sick Children, Paris, France
- University Paris Descartes, Imagine Institute, Paris, France
| | - Fabienne Jabot-Hanin
- Laboratory of Human Genetics of Infectious Diseases, Institut National de la Santé et de la Recherche Médicale, UMR 1163, Necker Hospital for Sick Children, Paris, France
- University Paris Descartes, Imagine Institute, Paris, France
| | - Elias Imahorn
- Department of Biomedicine, University Hospital Basel and University of Basel, Switzerland
| | - Andres A Arias
- Primary Immunodeficiencies Group, School of Medicine, University of Antioquia, Medellin, Colombia
- School of Microbiology, University of Antioquia, Medellin, Colombia
| | - Hassan Vahidnezhad
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA
- Molecular Medicine Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Leila Youssefian
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA
- Department of Medical Genetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Janet G Markle
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | - Etienne Patin
- Human Evolutionary Genetics, Pasteur Institute, Paris, France
- National Center for Scientific Research, URA 3012, Paris, France
- Center of Bioinformatics, Biostatistics and Integrative Biology, Pasteur Institute, Paris, France
| | - Aurelia D'Amico
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | - Claire Q F Wang
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY
| | - Florian Full
- Clinical and Molecular Virology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Armin Ensser
- Clinical and Molecular Virology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Tina M Leisner
- Department of Biochemistry and Biophysics and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Leslie V Parise
- Department of Biochemistry and Biophysics and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Matthieu Bouaziz
- Laboratory of Human Genetics of Infectious Diseases, Institut National de la Santé et de la Recherche Médicale, UMR 1163, Necker Hospital for Sick Children, Paris, France
- University Paris Descartes, Imagine Institute, Paris, France
| | | | - Xavier Rueda Cadena
- Dermatology/Oncology - Skin Cancer Unit, National Cancer Institute, Bogota, Colombia
| | - Bayaki Saka
- Department of Dermatology, Sylvanus Olympio Hospital, University of Lomé, Togo
| | - Amir Hossein Saeidian
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA
| | - Nessa Aghazadeh
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sirous Zeinali
- Molecular Medicine Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
- Kawsar Human Genetics Research Center, Tehran, Iran
| | - Peter Itin
- Department of Biomedicine, University Hospital Basel and University of Basel, Switzerland
- Dermatology, University Hospital Basel, Basel, Switzerland
| | - James G Krueger
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY
| | - Lou Laimins
- Department of Microbiology-Immunology, Northwestern University, Chicago, IL
| | - Laurent Abel
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Laboratory of Human Genetics of Infectious Diseases, Institut National de la Santé et de la Recherche Médicale, UMR 1163, Necker Hospital for Sick Children, Paris, France
- University Paris Descartes, Imagine Institute, Paris, France
| | - Elaine Fuchs
- Robin Chemers Neustein Laboratory of Mammalian Development and Cell Biology, The Rockefeller University, New York, NY
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA
- Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA
| | - Jose Luis Franco
- Primary Immunodeficiencies Group, School of Medicine, University of Antioquia, Medellin, Colombia
| | - Bettina Burger
- Department of Biomedicine, University Hospital Basel and University of Basel, Switzerland
| | - Gérard Orth
- Department of Virology, Pasteur Institute, Paris, France
| | - Emmanuelle Jouanguy
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Laboratory of Human Genetics of Infectious Diseases, Institut National de la Santé et de la Recherche Médicale, UMR 1163, Necker Hospital for Sick Children, Paris, France
- University Paris Descartes, Imagine Institute, Paris, France
| | - Jean-Laurent Casanova
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
- Laboratory of Human Genetics of Infectious Diseases, Institut National de la Santé et de la Recherche Médicale, UMR 1163, Necker Hospital for Sick Children, Paris, France
- University Paris Descartes, Imagine Institute, Paris, France
- Pediatric Hematology-Immunology Unit, Necker Hospital for Sick Children, Paris, France
- Howard Hughes Medical Institute, New York, NY
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33
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Suzuki T, Sakata K, Mizuno N, Palikhe S, Yamashita S, Hattori K, Matsuda N, Hattori Y. Different involvement of the MAPK family in inflammatory regulation in human pulmonary microvascular endothelial cells stimulated with LPS and IFN-γ. Immunobiology 2018; 223:777-785. [PMID: 30115376 DOI: 10.1016/j.imbio.2018.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/08/2018] [Accepted: 08/08/2018] [Indexed: 12/16/2022]
Abstract
Pulmonary endothelial injury is central in the pathogenesis of acute lung injury (ALI). The MAPK signaling cascades are generally thought to be involved in the molecular mechanism underlying the ALI development, but their roles in pulmonary endothelial injury is poorly understood. We thus examined the involvement of the MAPK family member in inflammatory responses of human pulmonary microvascular endothelial cells (HPMVECs) stimulated with LPS and IFN-γ. HPMVECs were found to exhibit the upregulation of expression of Toll-like receptor 4 by IFN-γ, resulting in potentiation of inflammatory cytokine release by LPS stimulation. All MAPKs, ERK1/2, JNK, and p38, were activated by simultaneous stimulation with LPS/IFN-γ. JNK activation in cells stimulated with LPS/IFN-γ was significantly potentiated by the two different p38 inhibitors, SB203580 and RWJ67657, suggesting the negative regulation of JNK activation by p38 in HPMVECs. The mRNA and protein expression levels of ICAM-1 were eliminated by the JNK inhibitor, suggesting that ICAM-1 expression is positively regulated by JNK. The p38 inhibitor significantly enhanced ICAM-1 expression. ERK1/2 activation was not responsible for the LPS/IFN-γ-induced ICAM-1 upregulation in HPMVECs. THP-1 monocyte adhesion to HPMVECs under LPS/IFN-γ stimulation was inhibited by the JNK inhibitor and enhanced by the p38 inhibitor. We conclude that, in HPMVECs stimulated with LPS/IFN-γ, JNK mediates ICAM-1 expression that can facilitate leukocyte adherence and transmigration, while p38 MAPK negatively regulates the upregulation of ICAM-1 through inhibition of JNK activation.
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Affiliation(s)
- Tokiko Suzuki
- Department of Molecular and Medical Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan.
| | - Kimimasa Sakata
- Department of Molecular and Medical Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; Department of Thoracic and Cardiovascular Surgery, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Natsumi Mizuno
- Department of Molecular and Medical Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Sailesh Palikhe
- Department of Molecular and Medical Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Shigeyuki Yamashita
- Department of Molecular and Medical Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; Department of Thoracic and Cardiovascular Surgery, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Kohshi Hattori
- Department of Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Naoyuki Matsuda
- Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuichi Hattori
- Department of Molecular and Medical Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
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Kamaguchi M, Iwata H, Ujiie H, Natsuga K, Nishie W, Kitagawa Y, Shimizu H. High Expression of Collagen XVII Compensates for its Depletion Induced by Pemphigoid IgG in the Oral Mucosa. J Invest Dermatol 2018; 138:1707-1715. [PMID: 29530535 DOI: 10.1016/j.jid.2018.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 02/22/2018] [Accepted: 03/02/2018] [Indexed: 02/08/2023]
Abstract
The basement membrane zone consists of multiple components, including collagen XVII (COL17), which is the target of bullous pemphigoid. To our knowledge, no research has addressed the differences in basement membrane zone components between the skin and oral mucosa; therefore, we investigated the basement membrane zone proteins, with a focus on COL17. The mRNA and protein expression levels of COL17 were significantly higher in oral keratinocytes than in skin keratinocytes. Hemidesmosomal COL17 expression was markedly higher in oral keratinocytes than in skin keratinocytes, and its level was associated with adhesion strength. Oral keratinocytes adhered to the extracellular matrix more tightly than did skin keratinocytes in vitro. Based on these results, we attempt to explain the clinical diversity of bullous pemphigoid. COL17 depletion was more prominent in skin keratinocytes than in oral keratinocytes after treatment with COL17-NC16A mAbs, which have in vivo pathogenicity. COL17 C-terminus mAbs, which are not pathogenic, facilitated COL17 depletion in combination treatment with COL17-NC16A mAbs in both types of keratinocytes. In summary, the greater amount of COL17 in oral keratinocytes than in skin keratinocytes is associated with the higher strength of oral keratinocyte hemidesmosomal adhesion at the basement membrane zone. Our results may explain why bullous pemphigoid blistering tends to be more prevalent in the skin than in the oral mucosa.
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Affiliation(s)
- Mayumi Kamaguchi
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; Department of Oral Diagnosis and Medicine, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Hiroaki Iwata
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
| | - Hideyuki Ujiie
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Ken Natsuga
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Wataru Nishie
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Yoshimasa Kitagawa
- Department of Oral Diagnosis and Medicine, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Hiroshi Shimizu
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
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Sorensen EW, Lian J, Ozga AJ, Miyabe Y, Ji SW, Bromley SK, Mempel TR, Luster AD. CXCL10 stabilizes T cell-brain endothelial cell adhesion leading to the induction of cerebral malaria. JCI Insight 2018; 3:98911. [PMID: 29669942 PMCID: PMC5931132 DOI: 10.1172/jci.insight.98911] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 03/14/2018] [Indexed: 01/12/2023] Open
Abstract
Malaria remains one of the world's most significant human infectious diseases and cerebral malaria (CM) is its most deadly complication. CM pathogenesis remains incompletely understood, hindering the development of therapeutics to prevent this lethal complication. Elevated levels of the chemokine CXCL10 are a biomarker for CM, and CXCL10 and its receptor CXCR3 are required for experimental CM (ECM) in mice, but their role has remained unclear. Using multiphoton intravital microscopy, CXCR3 receptor- and ligand-deficient mice and bone marrow chimeric mice, we demonstrate a key role for endothelial cell-produced CXCL10 in inducing the firm adhesion of T cells and preventing their cell detachment from the brain vasculature. Using a CXCL9 and CXCL10 dual-CXCR3-ligand reporter mouse, we found that CXCL10 was strongly induced in the brain endothelium as early as 4 days after infection, while CXCL9 and CXCL10 expression was found in inflammatory monocytes and monocyte-derived DCs within the blood vasculature on day 8. The induction of both CXCL9 and CXCL10 was completely dependent on IFN-γ receptor signaling. These data demonstrate that IFN-γ-induced, endothelium-derived CXCL10 plays a critical role in mediating the T cell-endothelial cell adhesive events that initiate the inflammatory cascade that injures the endothelium and induces the development of ECM.
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Abstract
SummaryThe integrin αIIbβ3 is the major fibrinogen receptor on the platelet membrane and plays a crucial role for platelet aggregation. The β3-subunit carries the human platelet alloantigen (HPA)-1a, which is the main target for alloantibodies (alloabs) responsible for foetal and neonatal alloimmune thrombocytopenia (FNAIT) and post-transfusion purpura (PTP).Whereas PTP is almost invariably associated with severe bleeding, the clinical presentation of FNAIT ranges from mild thrombocytopenia to severe haemorrhagic diathesis. However, this clinical heterogeneity is not fully understood as it is not explained solely by the variability of the platelet count. Here, we examined the ability of HPA-1a alloabs from mothers with FNAIT (n = 43) and PTP patients (n = 8) to inhibit cell adhesion to fibrinogen and asked if this inhibition was correlated with the heterogeneity of the clinical picture. Stably transfected cells expressing HPA-1a (β3-Leu33) and –1b (β3-Pro33) isoforms were incubated with sera containing HPA-1a alloabs and were allowed to adhere to immobilised fibrinogen. The inhibitory activity was measured as percentage of cell adhesion in the presence of patient sera versus normalAB serum. Only two FNAIT sera specifically inhibited the adhesion of HPA-1a, but not HPA-1b cells. Two other FNAIT sera blocked the adhesion of HPA-1a as well as HPA-1b cells. Interestingly, all four neonates with inhibitory HPA-1a alloabs (9% of all sera) suffered severe bleeding. In comparison, the majority of PTP sera (75%) inhibited cell binding to fibrinogen, four PTP sera selectively inhibited the adhesion of HPA-1a cells whilst 2 sera impaired the binding of both allotypes. Our observations indicate that 1) HPA-1a alloabs are heterogeneous in their ability to interfere with fibrinogen binding, and 2) inhibition of the αIIbβ3 fibrinogen receptor by HPA-1a alloabs may contribute to pronounced bleeding in patients with alloimmune thrombocytopenia.
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MESH Headings
- Animals
- Antibody Specificity
- Antigens, Human Platelet/genetics
- Antigens, Human Platelet/immunology
- Antigens, Human Platelet/metabolism
- CHO Cells
- Cell Adhesion/immunology
- Cricetinae
- Cricetulus
- Female
- Fibrinogen/metabolism
- Humans
- Infant, Newborn
- Infant, Newborn, Diseases/blood
- Infant, Newborn, Diseases/etiology
- Infant, Newborn, Diseases/immunology
- Integrin beta3
- Isoantibodies/blood
- Isoantibodies/immunology
- Isoantibodies/metabolism
- Thrombocytopenia/blood
- Thrombocytopenia/etiology
- Thrombocytopenia/immunology
- Transfection
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Affiliation(s)
- Hartmut Kroll
- Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
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Abstract
The adherence of monocytes to endothelial cells plays a causal role in the early development of atherosclerosis and is driven by several inflammatory stimuli, which includes oxidized low-density lipoprotein (ox-LDL). Lunasin, a natural peptide identified in soybean seeds, soy-derived food products, other grains and herbal plants, has been found to exert numerous biological activities, including anti-inflammatory and antioxidant properties. However, little is known regarding the mechanism of action of lunasin in ox-LDL-induced endothelial inflammation. The results of the present study indicate that lunasin significantly ameliorated ox-LDL-induced adhesion of THP-1 monocytes to the surface of human umbilical vein endothelial cells (HUVECs). Lunasin also suppressed expression of the adhesion molecules VCAM-1 and E-selectin, but not ICAM-1. Notably, the inhibitory mechanism of lunasin is associated with its stimulatory effects on expression of the KLF2 transcriptional factor. In addition, lunasin treatment could reverse the effects of ox-LDL on the expression of eNOS and PAI-1, the direct target genes of KLF2. Mechanistically, it was proven that the MEK5/ERK5 pathway mediates the effects of lunasin on KLF2 expression. Taken together, the results of this study suggest that dietary or supplementary intake of lunasin may have a prophylactic or therapeutic capacity in cardiovascular diseases such as atherosclerosis.
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Affiliation(s)
- Yongjun Zhu
- Deapartment of cardiovascular disease-2, The First Hospital Of Shangqiu, Shangqiu, 476000, Henan, China.
| | - Hui Li
- Deapartment of cardiovascular disease-2, The First Hospital Of Shangqiu, Shangqiu, 476000, Henan, China
| | - Xuezhen Wang
- Deapartment of cardiovascular disease-2, The First Hospital Of Shangqiu, Shangqiu, 476000, Henan, China
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38
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Newman R, Ahlfors H, Saveliev A, Galloway A, Hodson DJ, Williams R, Besra GS, Cook CN, Cunningham AF, Bell SE, Turner M. Maintenance of the marginal-zone B cell compartment specifically requires the RNA-binding protein ZFP36L1. Nat Immunol 2017; 18:683-693. [PMID: 28394372 PMCID: PMC5438597 DOI: 10.1038/ni.3724] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 03/09/2017] [Indexed: 12/15/2022]
Abstract
RNA-binding proteins of the ZFP36 family are best known for inhibiting the expression of cytokines through binding to AU-rich elements in the 3' untranslated region and promoting mRNA decay. Here we identified an indispensable role for ZFP36L1 as the regulator of a post-transcriptional hub that determined the identity of marginal-zone B cells by promoting their proper localization and survival. ZFP36L1 controlled a gene-expression program related to signaling, cell adhesion and locomotion; it achieved this in part by limiting expression of the transcription factors KLF2 and IRF8, which are known to enforce the follicular B cell phenotype. These mechanisms emphasize the importance of integrating transcriptional and post-transcriptional processes by RNA-binding proteins for maintaining cellular identity among closely related cell types.
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Affiliation(s)
- Rebecca Newman
- Laboratory of Lymphocyte Signalling and Development, The Babraham
Institute, Babraham Research Campus, Cambridge, CB22 3AT, United Kingdom
- Immune Receptor Activation Laboratory, The Francis Crick Institute,
1 Midland Road, London, NW1 1AT, United Kingdom
| | - Helena Ahlfors
- Laboratory of Lymphocyte Signalling and Development, The Babraham
Institute, Babraham Research Campus, Cambridge, CB22 3AT, United Kingdom
| | - Alexander Saveliev
- Laboratory of Lymphocyte Signalling and Development, The Babraham
Institute, Babraham Research Campus, Cambridge, CB22 3AT, United Kingdom
| | - Alison Galloway
- Laboratory of Lymphocyte Signalling and Development, The Babraham
Institute, Babraham Research Campus, Cambridge, CB22 3AT, United Kingdom
| | - Daniel J Hodson
- Department of Haematology, University of Cambridge, The Clifford
Allbutt Building, Cambridge Biomedical Campus, Hills Road, Cambridge, CB2 0AH,
United Kingdom
| | - Robert Williams
- Laboratory of Lymphocyte Signalling and Development, The Babraham
Institute, Babraham Research Campus, Cambridge, CB22 3AT, United Kingdom
| | - Gurdyal S. Besra
- School of Biosciences, University of Birmingham, Birmingham, B15
2TT, United Kingdom
| | - Charlotte N Cook
- MRC Centre for Immune Regulation, School of Immunity and Infection,
University of Birmingham, Birmingham, B15 2TT, United Kingdom
| | - Adam F Cunningham
- MRC Centre for Immune Regulation, School of Immunity and Infection,
University of Birmingham, Birmingham, B15 2TT, United Kingdom
| | - Sarah E Bell
- Laboratory of Lymphocyte Signalling and Development, The Babraham
Institute, Babraham Research Campus, Cambridge, CB22 3AT, United Kingdom
| | - Martin Turner
- Laboratory of Lymphocyte Signalling and Development, The Babraham
Institute, Babraham Research Campus, Cambridge, CB22 3AT, United Kingdom
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Yousaf F, Shahid M, Riaz M, Atta A, Fatima H. Immunomodulatory potential of Anacyclus pyrethrum (L.) and Mucuna pruriens (L.) In male albino rats. J BIOL REG HOMEOS AG 2017; 31:425-429. [PMID: 28685548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The present study was designed to investigate the immunomodulatory potential of Anacyclus pyrethrum roots and Mucuna pruriens seeds in male albino rats. The roots of A. pyrethrum and seeds of M. pruriens were extracted with methanolic solvent (70:30) and administered at dose concentrations of 50, 100 and 200 mg/Kg body weight to healthy male rats. The immune system of rats was suppressed by injecting carbon tetrachloride to animals in the toxic control group and test group animals. Cell-mediated immune response of animals was examined by performing neutrophil adhesion test and the humoral immune response was evaluated by determining serum immunoglobulin levels of the animals under study. The administration of methanolic extracts of A. pyrethrum roots and M. pruriens seeds significantly (p less than 0.05) increased the neutrophil adhesion to the nylon fiber. Increase in % neutrophil adhesion was observed in animals treated with 200 mg of each plant extract. Significant (p less than 0.05) improvement in immunoglobulin levels was recorded in the extract treated group animals, showing that the root extract of A. pyrethrum and seed extract of M. pruriens have immunomodulatory potential. We therefore conclude that the tested extracts can be used as immunomodulatory agents to stimulate the immune system.
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Affiliation(s)
- F Yousaf
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - M Shahid
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - M Riaz
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
- Department of Allied Health Sciences, Sargodha Medical College, University of Sargodha, Sargodha, Pakistan
| | - A Atta
- Department of Biochemistry, Bahauddin Zakaria University, Multan, Pakistan
| | - H Fatima
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
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Abdelbaset-Ismail A, Borkowska-Rzeszotek S, Kubis E, Bujko K, Brzeźniakiewicz-Janus K, Bolkun L, Kloczko J, Moniuszko M, Basak GW, Wiktor-Jedrzejczak W, Ratajczak MZ. Activation of the complement cascade enhances motility of leukemic cells by downregulating expression of HO-1. Leukemia 2017; 31:446-458. [PMID: 27451975 PMCID: PMC5288274 DOI: 10.1038/leu.2016.198] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 07/06/2016] [Accepted: 07/08/2016] [Indexed: 02/07/2023]
Abstract
As a crucial arm of innate immunity, the complement cascade (ComC) is involved both in mobilization of normal hematopoietic stem/progenitor cells (HSPCs) from bone marrow (BM) into peripheral blood and in their homing to BM. Despite the fact that ComC cleavage fragments alone do not chemoattract normal HSPCs, we found that leukemia cell lines as well as clonogenic blasts from chronic myeloid leukemia and acute myeloid leukemia patients respond robustly to C3 and C5 cleavage fragments by chemotaxis and increased adhesion. This finding was supported by the detection of C3a and C5a receptors in cells from human malignant hematopoietic cell lines and patient blasts at the mRNA (reverse transcriptase-polymerase chain reaction) and protein level (fluorescence-activated cell sorting), and by the demonstration that these receptors respond to stimulation by C3a and C5a by phosphorylation of p42/44 and p38 mitogen-activated protein kinases (MAPK), and protein kinase B (PKB/AKT). We also found that inducible heme oxygenase 1 (HO-1) is a negative regulator of ComC-mediated trafficking of leukemic cells, and that stimulation of leukemic cells by C3 or C5 cleavage fragments activates p38 MAPK, which downregulates HO-1 expression, rendering cells more mobile. We conclude that activation of the ComC in leukemia/lymphoma patients (for example, as a result of accompanying infections) enhances the motility of malignant cells and contributes to their spread in a p38 MAPK-HO-1-dependent manner. Therefore, inhibition of p38 MAPK or upregulation of HO-1 by small-molecule modulators would have a beneficial effect on ameliorating cell migration-mediated expansion of leukemia/lymphoma cells when the ComC becomes activated.
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Affiliation(s)
- A Abdelbaset-Ismail
- Stem Cell Institute at James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | | | - E Kubis
- Department of Physiology, Pomeranian Medical University, Szczecin, Poland
| | - K Bujko
- Stem Cell Institute at James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | | | - L Bolkun
- Department of Regenerative Medicine, Medical University of Bialystok, Bialystok, Poland
- Department of Hematology, Medical University of Bialystok, Bialystok, Poland
| | - J Kloczko
- Department of Regenerative Medicine, Medical University of Bialystok, Bialystok, Poland
- Department of Hematology, Medical University of Bialystok, Bialystok, Poland
| | - M Moniuszko
- Department of Regenerative Medicine, Medical University of Bialystok, Bialystok, Poland
| | - G W Basak
- Department of Hematology, Warsaw Medical University, Warsaw, Poland
| | | | - M Z Ratajczak
- Stem Cell Institute at James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
- Department of Regenerative Medicine, Warsaw Medical University, Warsaw, Poland
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41
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Baron L, Paatero AO, Morel JD, Impens F, Guenin-Macé L, Saint-Auret S, Blanchard N, Dillmann R, Niang F, Pellegrini S, Taunton J, Paavilainen VO, Demangel C. Mycolactone subverts immunity by selectively blocking the Sec61 translocon. J Exp Med 2016; 213:2885-2896. [PMID: 27821549 PMCID: PMC5154940 DOI: 10.1084/jem.20160662] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 08/26/2016] [Accepted: 10/17/2016] [Indexed: 12/29/2022] Open
Abstract
Mycolactone, an immunosuppressive macrolide released by the human pathogen Mycobacterium ulcerans, was previously shown to impair Sec61-dependent protein translocation, but the underlying molecular mechanism was not identified. In this study, we show that mycolactone directly targets the α subunit of the Sec61 translocon to block the production of secreted and integral membrane proteins with high potency. We identify a single-amino acid mutation conferring resistance to mycolactone, which localizes its interaction site near the lumenal plug of Sec61α. Quantitative proteomics reveals that during T cell activation, mycolactone-mediated Sec61 blockade affects a selective subset of secretory proteins including key signal-transmitting receptors and adhesion molecules. Expression of mutant Sec61α in mycolactone-treated T cells rescued their homing potential and effector functions. Furthermore, when expressed in macrophages, the mycolactone-resistant mutant restored IFN-γ receptor-mediated antimicrobial responses. Thus, our data provide definitive genetic evidence that Sec61 is the host receptor mediating the diverse immunomodulatory effects of mycolactone and identify Sec61 as a novel regulator of immune cell functions.
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Affiliation(s)
- Ludivine Baron
- Unité d’Immunobiologie de l’Infection, Institut Pasteur, Institut National de la Santé et de la Recherche Médicale U1221, 75015 Paris, France
| | | | - Jean-David Morel
- Unité d’Immunobiologie de l’Infection, Institut Pasteur, Institut National de la Santé et de la Recherche Médicale U1221, 75015 Paris, France
| | - Francis Impens
- Unité des Interactions Bactéries-Cellules, Institut Pasteur, Institut National de la Santé et de la Recherche Médicale U604, Institut National de la Recherche Agronomique, Unité sous-contrat 2020, 75015 Paris, France
| | - Laure Guenin-Macé
- Unité d’Immunobiologie de l’Infection, Institut Pasteur, Institut National de la Santé et de la Recherche Médicale U1221, 75015 Paris, France
| | - Sarah Saint-Auret
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7509, École européenne de Chimie, Polymères et Matériaux, Université de Strasbourg, 67087 Strasbourg, France
| | - Nicolas Blanchard
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7509, École européenne de Chimie, Polymères et Matériaux, Université de Strasbourg, 67087 Strasbourg, France
| | - Rabea Dillmann
- Institute of Biotechnology, University of Helsinki, 00014 Helsinki, Finland
| | - Fatoumata Niang
- Unité d’Immunobiologie de l’Infection, Institut Pasteur, Institut National de la Santé et de la Recherche Médicale U1221, 75015 Paris, France
| | - Sandra Pellegrini
- Unité de Signalisation des Cytokines, Institut Pasteur, Institut National de la Santé et de la Recherche Médicale U1221, 75015 Paris, France
| | - Jack Taunton
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158
| | | | - Caroline Demangel
- Unité d’Immunobiologie de l’Infection, Institut Pasteur, Institut National de la Santé et de la Recherche Médicale U1221, 75015 Paris, France
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42
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Girola N, Matsuo AL, Figueiredo CR, Massaoka MH, Farias CF, Arruda DC, Azevedo RA, Monteiro HP, Resende-Lara PT, Cunha RLOR, Polonelli L, Travassos LR. The Ig V H complementarity-determining region 3-containing Rb9 peptide, inhibits melanoma cells migration and invasion by interactions with Hsp90 and an adhesion G-protein coupled receptor. Peptides 2016; 85:1-15. [PMID: 27575453 DOI: 10.1016/j.peptides.2016.08.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/17/2016] [Accepted: 08/22/2016] [Indexed: 12/30/2022]
Abstract
The present work aims at investigating the mechanism of action of the Rb9 peptide, which contains the VHCDR 3 sequence of anti-sodium-dependent phosphate transport protein 2B (NaPi2B) monoclonal antibody RebMab200 and displayed antitumor properties. Short peptides corresponding to the hypervariable complementarity-determining regions (CDRs) of immunoglobulins have been associated with antimicrobial, antiviral, immunomodulatory and antitumor activities regardless of the specificity of the antibody. We have shown that the CDR derived peptide Rb9 induced substrate hyperadherence, inhibition of cell migration and matrix invasion in melanoma and other tumor cell lines. Rb9 also inhibited metastasis of murine melanoma in a syngeneic mouse model. We found that Rb9 binds to and interferes with Hsp90 chaperone activity causing attenuation of FAK-Src signaling and downregulation of active Rac1 in B16F10-Nex2 melanoma cells. The peptide also bound to an adhesion G-protein coupled receptor, triggering a concentration-dependent synthesis of cAMP and activation of PKA and VASP signaling as well as IP-3 dependent Ca2+ release. Hsp90 is highly expressed on the cell surface of melanoma cells, and synthetic agents that target Hsp90 are promising cancer therapeutic drugs. Based on their remarkable antitumor effects, the CDR-H3-derived peptides from RebMab200, and particularly the highly soluble and stable Rb9, are novel candidates to be further studied as potential antitumor drugs, selectively acting on cancer cell motility and invasion.
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Affiliation(s)
- Natalia Girola
- Department of Microbiology, Immunology and Parasitology, Cell Biology Division and Experimental Oncology Unit (UNONEX), Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Alisson L Matsuo
- Interdepartmental Group of Health Economics (Grides), Federal University of São Paulo, SP, Brazil
| | - Carlos R Figueiredo
- Department of Microbiology, Immunology and Parasitology, Cell Biology Division and Experimental Oncology Unit (UNONEX), Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Mariana H Massaoka
- Department of Microbiology, Immunology and Parasitology, Cell Biology Division and Experimental Oncology Unit (UNONEX), Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Camyla F Farias
- Department of Microbiology, Immunology and Parasitology, Cell Biology Division and Experimental Oncology Unit (UNONEX), Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil
| | - Denise C Arruda
- Núcleo Integrado de Biotecnologia, Universidade de Mogi das Cruzes, São Paulo, SP, Brazil
| | - Ricardo A Azevedo
- Biochemistry and Biophysics Laboratory, Butantan Institute, São Paulo, SP, Brazil
| | - Hugo P Monteiro
- Center for Cellular and Molecular Therapy (CTCMol) and Department of Biochemistry, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Pedro T Resende-Lara
- Computation and Bioinformatic Biology laboratory, Federal University of ABC, Santo André, São Paulo, SP, Brazil
| | - Rodrigo L O R Cunha
- Chemical Biology Laboratory, Natural and Human Sciences Center, Federal University of ABC, Santo André, São Paulo, SP, Brazil
| | - Luciano Polonelli
- Microbiology and Virology Unit, Department of Biomedical, Biotechnological and Translational Sciences, Universitá degli Studi di Parma, Parma, Italy
| | - Luiz R Travassos
- Department of Microbiology, Immunology and Parasitology, Cell Biology Division and Experimental Oncology Unit (UNONEX), Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil; Recepta Biopharma, São Paulo, SP, Brazil.
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43
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Thaveeratitham P, Plengpanich W, Naen-Udorn W, Patumraj S, Khovidhunkit W. Effects of human apolipoprotein A-I on endotoxin-induced leukocyte adhesion on endothelial cells in vivo and on the growth of Escherichia coli in vitro. ACTA ACUST UNITED AC 2016; 13:58-64. [PMID: 17621547 DOI: 10.1177/0968051907078611] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Background: High-density lipoprotein (HDL) has been shown to inhibit leukocyte adhesion to endothelial cells induced by endotoxin in vivo and suppress the growth of bacteria in vitro; however, the components responsible for these effects, either lipids or proteins, are not yet defined. In this study, we examined the effects of apolipoprotein (apo) A-I, the major protein of HDL, on ameliorating the effect of endotoxin and inhibiting the growth of bacteria. Materials and Methods: Apo A-I, purified from normal human HDL, was incubated with endotoxin. Leukocyte adhesion to endothelial cells of rat mesenteric venules was assessed using intravital fluorescence microscopy. Ability of apo A-I to inhibit the growth of Escherichia coli was assessed using a spread plate method. Results: Purified, lipid-free apo A-I could inhibit endotoxin-induced leukocyte adhesion to endothelial cells in vivo in a dose-dependent manner. In addition, apoA-I was able to suppress the growth of Escherichia coli in vitro. Conclusions: These data suggest that apo A-I of HDL can directly interact with endotoxin, ameliorating its effect and that apo A-I may have a direct toxic effect on whole bacteria. Therefore, therapeutic use of apo A-I in septicemia and bacterial infection should be further explored.
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Affiliation(s)
- Premtip Thaveeratitham
- Interdepartment of Physiology, Graduate School, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
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Pezzi N, Assis AF, Cotrim-Sousa LC, Lopes GS, Mosella MS, Lima DS, Bombonato-Prado KF, Passos GA. Aire knockdown in medullary thymic epithelial cells affects Aire protein, deregulates cell adhesion genes and decreases thymocyte interaction. Mol Immunol 2016; 77:157-73. [PMID: 27505711 DOI: 10.1016/j.molimm.2016.08.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 07/12/2016] [Accepted: 08/02/2016] [Indexed: 12/15/2022]
Abstract
We demonstrate that even a partial reduction of Aire mRNA levels by siRNA-induced Aire knockdown (Aire KD) has important consequences to medullary thymic epithelial cells (mTECs). Aire knockdown is sufficient to reduce Aire protein levels, impair its nuclear location, and cause an imbalance in large-scale gene expression, including genes that encode cell adhesion molecules. These genes drew our attention because adhesion molecules are implicated in the process of mTEC-thymocyte adhesion, which is critical for T cell development and the establishment of central self-tolerance. Accordingly, we consider the following: 1) mTECs contribute to the elimination of self-reactive thymocytes through adhesion; 2) Adhesion molecules play a crucial role during physical contact between these cells; and 3) Aire is an important transcriptional regulator in mTECs. However, its role in controlling mTEC-thymocyte adhesion remains unclear. Because Aire controls adhesion molecule genes, we hypothesized that the disruption of its expression could influence mTEC-thymocyte interaction. To test this hypothesis, we used a murine Aire(+) mTEC cell line as a model system to reproduce mTEC-thymocyte adhesion in vitro. Transcriptome analysis of the mTEC cell line revealed that Aire KD led to the down-modulation of more than 800 genes, including those encoding for proteins involved in cell adhesion, i.e., the extracellular matrix constituent Lama1, the CAM family adhesion molecules Vcam1 and Icam4, and those that encode peripheral tissue antigens. Thymocytes co-cultured with Aire KD mTECs had a significantly reduced capacity to adhere to these cells. This finding is the first direct evidence that Aire also plays a role in controlling mTEC-thymocyte adhesion.
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Affiliation(s)
- Nicole Pezzi
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Amanda Freire Assis
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Larissa Cotrim Cotrim-Sousa
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Gabriel Sarti Lopes
- Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil
| | - Maritza Salas Mosella
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Djalma Sousa Lima
- Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil
| | - Karina F Bombonato-Prado
- Department of Morphology, Physiology and Basic Pathology, School of Dentistry of Ribeirão Preto, USP, Ribeirão Preto, SP, Brazil
| | - Geraldo Aleixo Passos
- Molecular Immunogenetics Group, Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, SP, Brazil; Department of Morphology, Physiology and Basic Pathology, School of Dentistry of Ribeirão Preto, USP, Ribeirão Preto, SP, Brazil.
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45
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Ni X, Geller EB, Eppihimer MJ, Eisenstein TK, Adler MW, Tuma RF. Win 55212-2, a cannabinoid receptor agonist, attenuates leukocyte/endothelial interactions in an experimental autoimmune encephalomyelitis model. Mult Scler 2016; 10:158-64. [PMID: 15124761 DOI: 10.1191/1352458504ms1009oa] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Multiple sclerosis (MS) is the most common of the immune demyelinating disorders of the central nervous system (C NS). Leukocyte/endothelial interactions are important steps in the progression of the disease and substances that interfere with these activities have been evaluated as potential therapeutic agents. C annabinoid receptor agonists have been shown to downregulate immune responses and there is preliminary evidence that they may slow the progress of MS. The purpo se of this investigation was to determine how cannabinoid recepto r agonists interfere with leukocyte rolling and adhesion. This was investigated in an experimental autoimmune encephalo myelitis (EAE) model using six to eight week old C 57BL/6 mice. Mouse myelin oligodendrocyte protein and pertussis toxin were used to induce EAE. WIN 55212-2, C B1 and C B2 antagonist were given. By use of in vivo intravital microscopy, leukocyte/endothelial interactio ns were evaluated via a cranial window implanted two days before. The results demonstrated that EAE increases leukocyte rolling and firm adhesion in the brain, and that this increased leukocyte/endothelial interactio n can be attenuated by administration of WIN 55212-2. Furthermore, use of the selective antagonists for the C B1 recepto r (SR 141716A) and the C B2 receptor (SR144528) in this study demonstrated that the cannabinoid’s inhibitory effects on leukocyte/endothelial interactions can be mediated by activating C B2 receptor.
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MESH Headings
- Animals
- Benzoxazines
- Calcium Channel Blockers/pharmacology
- Cell Adhesion/drug effects
- Cell Adhesion/immunology
- Cell Communication/drug effects
- Disease Models, Animal
- Encephalomyelitis, Autoimmune, Experimental/drug therapy
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Endothelium, Vascular/cytology
- Female
- Leukocyte Rolling/drug effects
- Leukocytes/cytology
- Mice
- Mice, Inbred C57BL
- Morpholines/pharmacology
- Multiple Sclerosis/drug therapy
- Multiple Sclerosis/immunology
- Naphthalenes/pharmacology
- Paralysis/drug therapy
- Paralysis/immunology
- Paralysis/pathology
- Receptor, Cannabinoid, CB1/agonists
- Receptor, Cannabinoid, CB2/agonists
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Affiliation(s)
- Xiang Ni
- Department of Physiology, Temple University, 3420 N. Broad Street, Philadelphia, PA 19140, USA
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46
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Jürets A, Le Bras M, Staffler G, Stein G, Leitner L, Neuhofer A, Tardelli M, Turkof E, Zeyda M, Stulnig TM. Inhibition of Cellular Adhesion by Immunological Targeting of Osteopontin Neoepitopes Generated through Matrix Metalloproteinase and Thrombin Cleavage. PLoS One 2016; 11:e0148333. [PMID: 26840958 PMCID: PMC4740464 DOI: 10.1371/journal.pone.0148333] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 01/15/2016] [Indexed: 01/10/2023] Open
Abstract
Osteopontin (OPN), a secreted protein involved in inflammatory processes and cancer, induces cell adhesion, migration, and activation of inflammatory pathways in various cell types. Cells bind OPN via integrins at a canonical RGD region in the full length form as well as to a contiguous cryptic site that some have shown is unmasked upon thrombin or matrix metalloproteinase cleavage. Thus, the adhesive capacity of osteopontin is enhanced by proteolytic cleavage that may occur in inflammatory conditions such as obesity, atherosclerosis, rheumatoid arthritis, tumor growth and metastasis. Our aim was to inhibit cellular adhesion to recombinant truncated proteins that correspond to the N-terminal cleavage products of thrombin- or matrix metalloproteinase-cleaved OPN in vitro. We specifically targeted the cryptic integrin binding site with monoclonal antibodies and antisera induced by peptide immunization of mice. HEK 293 cells adhered markedly stronger to truncated OPN proteins than to full length OPN. Without affecting cell binding to the full length form, the raised monoclonal antibodies specifically impeded cellular adhesion to the OPN fragments. Moreover, we show that the peptides used for immunization were able to induce antisera, which impeded adhesion either to all OPN forms, including the full-length form, or selectively to the corresponding truncated recombinant proteins. In conclusion, we developed immunological tools to selectively target functional properties of protease-cleaved OPN forms, which could find applications in treatment and prevention of various inflammatory diseases and cancers.
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Affiliation(s)
- Alexander Jürets
- Christian Doppler Laboratory for Cardio-Metabolic Immunotherapy and Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | | | | | - Gesine Stein
- Christian Doppler Laboratory for Cardio-Metabolic Immunotherapy and Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Lukas Leitner
- Christian Doppler Laboratory for Cardio-Metabolic Immunotherapy and Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Angelika Neuhofer
- Christian Doppler Laboratory for Cardio-Metabolic Immunotherapy and Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Matteo Tardelli
- Christian Doppler Laboratory for Cardio-Metabolic Immunotherapy and Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Edvin Turkof
- Department of Plastic and Reconstructive Surgery, Medical University of Vienna, Vienna, Austria
| | - Maximilian Zeyda
- Christian Doppler Laboratory for Cardio-Metabolic Immunotherapy and Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Thomas M. Stulnig
- Christian Doppler Laboratory for Cardio-Metabolic Immunotherapy and Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- * E-mail:
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47
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Chen L, Miao W, Zhang H, Zeng F, Cao C, Qiu R, Yang J, Luo F, Yan J, Lv H, Xu Q. The inhibitory effects of a monoclonal antibody targeting neuropilin-1 on adhesion of glioma cells to fibronectin. J Biomed Nanotechnol 2015; 10:3373-80. [PMID: 26000395 DOI: 10.1166/jbn.2014.1867] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We investigated the inhibitory effects of anti-Neuropilin-1 monoclonal antibody (NRP-1 MAb) on adhesion of glioma cells to Fibronectin (FN) and the associated mechanisms. The effects of NRP-1 MAb on adhesion of U251 glioma cells and formation of stress fibers were studied using adhesion assays and confocal fluorescence microscopy. After treatment of U251 glioma cells with NRP-1 MAb, changes of related proteins adhering to FN were detected by co-immunoprecipitation and Western blot. Adhesion assays showed that NRP-1 MAb played an inhibitory role in adhesion of U251 glioma cells. Confocal fluorescence microscopy, co-immunoprecipitation and Western blot showed that NRP-1 MAb can inhibit the formation of stress fibers adhering to U251 cells. NRP-1 MAb can also affect the formation of Integrin α5β1-NRP-1 complex, and also reduce the level of phosphorylation of FAK and p130cas. In conclusion, NRP-1 MAb has the inhibitory effects on adhesion of glioma cells to FN. This effect is related to the inhibition of NRP-1 MAb on the formation of Integrin α5β1-NRP-1 complex, which leads to the inhibition of FAK/p130cas signaling pathway.
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48
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Affiliation(s)
- N L Hansen
- Department of Dermatology, Bispebjerg Hospital, Copenhagen, Denmark
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49
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Lee TT, García JR, Paez J, Singh A, Phelps EA, Weis S, Shafiq Z, Shekaran A, del Campo A, García AJ. Light-triggered in vivo activation of adhesive peptides regulates cell adhesion, inflammation and vascularization of biomaterials. Nat Mater 2015; 14:352-60. [PMID: 25502097 PMCID: PMC4336636 DOI: 10.1038/nmat4157] [Citation(s) in RCA: 283] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Accepted: 10/31/2014] [Indexed: 05/03/2023]
Abstract
Materials engineered to elicit targeted cellular responses in regenerative medicine must display bioligands with precise spatial and temporal control. Although materials with temporally regulated presentation of bioadhesive ligands using external triggers, such as light and electric fields, have recently been realized for cells in culture, the impact of in vivo temporal ligand presentation on cell-material responses is unknown. Here, we present a general strategy to temporally and spatially control the in vivo presentation of bioligands using cell-adhesive peptides with a protecting group that can be easily removed via transdermal light exposure to render the peptide fully active. We demonstrate that non-invasive, transdermal time-regulated activation of cell-adhesive RGD peptide on implanted biomaterials regulates in vivo cell adhesion, inflammation, fibrous encapsulation, and vascularization of the material. This work shows that triggered in vivo presentation of bioligands can be harnessed to direct tissue reparative responses associated with implanted biomaterials.
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Affiliation(s)
- Ted T. Lee
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - José R. García
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Julieta Paez
- Max-Planck-Institut für Polymerforschung, Mainz 55128, Germany
| | - Ankur Singh
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Edward A. Phelps
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Simone Weis
- Max-Planck-Institut für Polymerforschung, Mainz 55128, Germany
| | - Zahid Shafiq
- Max-Planck-Institut für Polymerforschung, Mainz 55128, Germany
| | - Asha Shekaran
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | | | - Andrés J. García
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
- Correspondence and requests for materials should be addressed to A.J.G.
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50
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Abstract
Plasmodium falciparum-infected red blood cells (IRBC) adhere to the endothelium via receptors expressed on the surface of vascular endothelial cells (EC) and sequester in the microvasculature of several organs. Sequestration is the primary step leading to complications related to the severity of malaria. In order to study this cytoadhesion phenomenon, IRBC in vitro binding assays have been developed using a monolayer of primary or transformed endothelial cells. Here we describe the methodology of an assay to inhibit the binding of IRBC on vascular endothelial cells under static adhesion conditions. Similar techniques could be used for conducting a binding inhibition assay under flow assay conditions using an appropriate device.
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Affiliation(s)
- Marion Avril
- Center for Infectious Disease Research formerly known as Seattle Biomedical research Institute, 307 Westlake Avenue North, Suite 500, Seattle, WA, 98109, USA.
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