1
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Wagner B, Smieško M, Jakob RP, Mühlethaler T, Cramer J, Maier T, Rabbani S, Schwardt O, Ernst B. Analogues of the pan-selectin antagonist rivipansel (GMI-1070). Eur J Med Chem 2024; 272:116455. [PMID: 38728868 DOI: 10.1016/j.ejmech.2024.116455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/12/2024]
Abstract
The selectin family consisting of E-, P- and L-selectin plays dominant roles in atherosclerosis, ischemia-reperfusion injury, inflammatory diseases, and metastatic spreading of some cancers. An early goal in selectin-targeted drug discovery campaigns was to identify ligands binding to all three selectins, so-called pan-selectin antagonists. The physiological epitope, tetrasaccharide sialyl Lewisx (sLex, 1) binds to all selectins, albeit with very different affinities. Whereas P- and L-selectin require additional interactions contributed by sulfate groups for high binding affinity, E-selectin can functionally bind sLex-modified glycolipids and glycoproteins. Rivipansel (3) marked the first pan-selectin antagonist, which simultaneously interacted with both the sLex and the sulfate binding site. The aim of this contribution was to improve the pan-selectin affinity of rivipansel (3) by leveraging a new class of sLex mimetics in combination with an optimized linker length to the sulfate bearing group. As a result, the pan-selectin antagonist 11b exhibits an approximatively 5-fold improved affinity for E-, as well as P-selectin.
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Affiliation(s)
- Beatrice Wagner
- University of Basel, Department of Pharmaceutical Sciences, Group Molecular Pharmacy, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Martin Smieško
- University of Basel, Department of Pharmaceutical Sciences, Group Computational Pharmacy, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Roman P Jakob
- University of Basel, Department Biozentrum, Structural Area Focal Biology, Spitalstrasse 41, 4056, Basel, Switzerland
| | - Tobias Mühlethaler
- University of Basel, Department of Pharmaceutical Sciences, Group Molecular Pharmacy, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Jonathan Cramer
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Tim Maier
- University of Basel, Department Biozentrum, Structural Area Focal Biology, Spitalstrasse 41, 4056, Basel, Switzerland
| | - Said Rabbani
- University of Basel, Department of Pharmaceutical Sciences, Group Molecular Pharmacy, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Oliver Schwardt
- University of Basel, Department of Pharmaceutical Sciences, Group Molecular Pharmacy, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Beat Ernst
- University of Basel, Department of Pharmaceutical Sciences, Group Molecular Pharmacy, Klingelbergstrasse 50, 4056, Basel, Switzerland.
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2
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Tong Q, Yao L, Su M, Yang YG, Sun L. Thymocyte migration and emigration. Immunol Lett 2024; 267:106861. [PMID: 38697225 DOI: 10.1016/j.imlet.2024.106861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 12/15/2023] [Accepted: 04/26/2024] [Indexed: 05/04/2024]
Abstract
Hematopoietic precursors (HPCs) entering into the thymus undergo a sequential process leading to the generation of a variety of T cell subsets. This developmental odyssey unfolds in distinct stages within the thymic cortex and medulla, shaping the landscape of T cell receptor (TCR) expression and guiding thymocytes through positive and negative selection. Initially, early thymic progenitors (ETPs) take residence in the thymic cortex, where thymocytes begin to express their TCR and undergo positive selection. Subsequently, thymocytes transition to the thymic medulla, where they undergo negative selection. Both murine and human thymocyte development can be broadly classified into distinct stages based on the expression of CD4 and CD8 coreceptors, resulting in categorizations as double negative (DN), double positive (DP) or single positive (SP) cells. Thymocyte migration to the appropriate thymic microenvironment at the right differentiation stage is pivotal for the development and the proper functioning of T cells, which is critical for adaptive immune responses. The journey of lymphoid progenitor cells into the T cell developmental pathway hinges on an ongoing dialogue between the differentiating cell and the signals emanating from the thymus niche. Herein, we review the contribution of the key factors mentioned above for the localization, migration and emigration of thymocytes.
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Affiliation(s)
- Qingyue Tong
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun, Jilin, China; National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
| | - Liyu Yao
- Department of Pediatric Surgery, The First Hospital of Jilin University, Changchun, China
| | - Mengting Su
- National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
| | - Yong-Guang Yang
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun, Jilin, China; National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China.
| | - Liguang Sun
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun, Jilin, China; National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China.
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3
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Haynes ME, Sullivan DP, Muller WA. Neutrophil Infiltration and Function in the Pathogenesis of Inflammatory Airspace Disease. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:628-636. [PMID: 38309429 DOI: 10.1016/j.ajpath.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/07/2023] [Accepted: 12/21/2023] [Indexed: 02/05/2024]
Abstract
Neutrophils are an important cell type often considered the body's first responders to inflammatory insult or damage. They are recruited to the tissue of the lungs in patients with inflammatory airspace diseases and have unique and complex functions that range from helpful to harmful. The uniqueness of these functions is due to the heterogeneity of the inflammatory cascade and retention in the vasculature. Neutrophils are known to marginate, or remain stagnant, in the lungs even in nondisease conditions. This review discusses the ways in which the recruitment, presence, and function of neutrophils in the airspace of the lungs are unique from those of other tissues, and the complex effects of neutrophils on pathogenesis. Inflammatory mediators produced by neutrophils, such as neutrophil elastase, proresolving mediators, and neutrophil extracellular traps, dramatically affect the outcomes of patients with disease of the lungs.
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Affiliation(s)
- Maureen E Haynes
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - David P Sullivan
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - William A Muller
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
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4
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Hossen F, Geng X, Sun GY, Yao X, Lee JC. Oligomeric Amyloid-β and Tau Alter Cell Adhesion Properties and Induce Inflammatory Responses in Cerebral Endothelial Cells Through the RhoA/ROCK Pathway. Mol Neurobiol 2024:10.1007/s12035-024-04138-z. [PMID: 38561558 DOI: 10.1007/s12035-024-04138-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
Dysfunction of cerebral endothelial cells (CECs) has been implicated in the pathology of Alzheimer's disease (AD). Despite evidence showing cytotoxic effects of oligomeric amyloid-β (oAβ) and Tau (oTau) in the central nervous system, their direct effects on CECs have not been fully investigated. In this study, we examined the direct effects of oAβ, oTau, and their combination on cell adhesion properties and inflammatory responses in CECs. We found that both oAβ and oTau increased cell stiffness, as well as the p-selectin/Sialyl-LewisX (sLeX) bonding-mediated membrane tether force and probability of adhesion in CECs. Consistent with these biomechanical alterations, treatments with oAβ or oTau also increased actin polymerization and the expression of p-selectin at the cell surface. These toxic oligomeric peptides also triggered inflammatory responses, including upregulations of p-NF-kB p65, IL-1β, and TNF-α. In addition, they rapidly activated the RhoA/ROCK pathway. These biochemical and biomechanical changes were further enhanced by the treatment with the combination of oAβ and oTau, which were significantly suppressed by Fasudil, a specific inhibitor for the RhoA/ROCK pathway. In conclusion, our data suggest that oAβ, oTau, and their combination triggered subcellular mechanical alterations and inflammatory responses in CECs through the RhoA/ROCK pathway.
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Affiliation(s)
- Faruk Hossen
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Xue Geng
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Xincheng Yao
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - James C Lee
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA.
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5
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Zhang N, Tang W, Torres L, Wang X, Ajaj Y, Zhu L, Luan Y, Zhou H, Wang Y, Zhang D, Kurbatov V, Khan SA, Kumar P, Hidalgo A, Wu D, Lu J. Cell surface RNAs control neutrophil recruitment. Cell 2024; 187:846-860.e17. [PMID: 38262409 PMCID: PMC10922858 DOI: 10.1016/j.cell.2023.12.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 10/30/2023] [Accepted: 12/28/2023] [Indexed: 01/25/2024]
Abstract
RNAs localizing to the outer cell surface have been recently identified in mammalian cells, including RNAs with glycan modifications known as glycoRNAs. However, the functional significance of cell surface RNAs and their production are poorly known. We report that cell surface RNAs are critical for neutrophil recruitment and that the mammalian homologs of the sid-1 RNA transporter are required for glycoRNA expression. Cell surface RNAs can be readily detected in murine neutrophils, the elimination of which substantially impairs neutrophil recruitment to inflammatory sites in vivo and reduces neutrophils' adhesion to and migration through endothelial cells. Neutrophil glycoRNAs are predominantly on cell surface, important for neutrophil-endothelial interactions, and can be recognized by P-selectin (Selp). Knockdown of the murine Sidt genes abolishes neutrophil glycoRNAs and functionally mimics the loss of cell surface RNAs. Our data demonstrate the biological importance of cell surface glycoRNAs and highlight a noncanonical dimension of RNA-mediated cellular functions.
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Affiliation(s)
- Ningning Zhang
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Wenwen Tang
- Vascular Biology and Therapeutics Program and Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Lidiane Torres
- Department of Cell Biology and Ruth L. and David S. Gottesman Institute for Stem Cell Biology and Regenerative Medicine, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
| | - Xujun Wang
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Yasmeen Ajaj
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Li Zhu
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven CT 06511
| | - Yi Luan
- Vascular Biology and Therapeutics Program and Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Hongyue Zhou
- Vascular Biology and Therapeutics Program and Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Yadong Wang
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA; Yale Cooperative Center of Excellence in Hematology, New Haven, CT 12208, USA
| | - Dingyao Zhang
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA; Computational Biology and Bioinformatics Graduate Program, Yale University, New Haven, CT 06520, USA
| | - Vadim Kurbatov
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA; Department of Surgery, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Sajid A Khan
- Department of Surgery, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Priti Kumar
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven CT 06511
| | - Andres Hidalgo
- Vascular Biology and Therapeutics Program and Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06519, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Dianqing Wu
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT 06520, USA; Vascular Biology and Therapeutics Program and Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06519, USA; Yale Cancer Center, New Haven, CT 06520, USA.
| | - Jun Lu
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA; Yale Cooperative Center of Excellence in Hematology, New Haven, CT 12208, USA; Yale Cancer Center, New Haven, CT 06520, USA; Yale Center for RNA Science and Medicine, New Haven, CT 06520, USA.
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6
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Kassai S, de Vos P. Gastrointestinal barrier function, immunity, and neurocognition: The role of human milk oligosaccharide (hMO) supplementation in infant formula. Compr Rev Food Sci Food Saf 2024; 23:e13271. [PMID: 38284595 DOI: 10.1111/1541-4337.13271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/06/2023] [Accepted: 10/27/2023] [Indexed: 01/30/2024]
Abstract
Breastmilk is seen as the gold standard for infant nutrition as it provides nutrients and compounds that stimulate gut barrier, immune, and brain development to the infant. However, there are many instances where it is not possible for an infant to be fed with breastmilk, especially for the full 6 months recommended by the World Health Organization. In such instances, infant formula is seen as the next best approach. However, infant formulas do not contain human milk oligosaccharides (hMOs), which are uniquely present in human milk as the third most abundant solid component. hMOs have been linked to many health benefits, such as the development of the gut microbiome, the immune system, the intestinal barrier, and a healthy brain. This paper reviews the effects of specific hMOs applied in infant formula on the intestinal barrier, including the not-often-recognized intestinal alkaline phosphatase system that prevents inflammation. Additionally, impact on immunity and the current proof for effects in neurocognitive function and the corresponding mechanisms are discussed. Recent studies suggest that hMOs can alter gut microbiota, modulate intestinal immune barrier function, and promote neurocognitive function. The hMOs 2'-fucosyllactose and lacto-N-neotetraose have been found to have positive effects on the development of infants and have been deemed safe for use in formula. However, their use has been limited due to their cost and complexity of synthesis. Thus, although many benefits have been described, complex hMOs and combinations of hMOs with other oligosaccharides are the best approach to stimulate gut barrier, immune, and brain development and for the prevention of disease.
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Affiliation(s)
- Sonia Kassai
- Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Paul de Vos
- Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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7
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Cioffi A, Cecannecchia C, Bosco MA, Gurgoglione G, Baldari B, De Simone S. Lethal nitrous oxide (N 2O) intoxication during surgery: the contribution of immunohistochemistry in identifying the cause of death: a case report. J Med Case Rep 2023; 17:424. [PMID: 37814318 PMCID: PMC10563339 DOI: 10.1186/s13256-023-04159-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 09/01/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND Nitrous oxide (N2O) is a gas used in medicine for its analgesic, anxiolytic and amnesic properties. It is a drug considered safe if adequately administered. In the literature, accidental N2O-related deaths are rare. They are mostly related to inhalation of this substance for recreational and autoerotic purposes; rarely are reported deaths due to incorrect administration of medical gas in anesthesia. The diagnosis of death from acute N2O intoxication is complex and is generally an exclusion diagnosis: the macroscopic and microscopic post-mortem signs are entirely nonspecific. Furthermore, the circumstantial data are not always supportive and can even be confusing, mainly if the death occurred inside a hospital. CASE PRESENTATION We describe a particular case of death from acute nitrous oxide poisoning in a hospital environment, of a Caucasian male of 72-years-old. The intoxication occurred during a minimally invasive vascular surgery due to an incorrect assembly of the supply lines of medical gases (O2 and N2O). The identification of the cause of death resulted from the analysis of circumstantial data, macroscopic and microscopic autoptic findings, and immunohistochemical investigations based on the search for antibodies anti E-selectin, P-selectin, and HIF 1-α. CONCLUSION Although not pathognomonic of asphyxiation by N2O, the latter molecules are a valid and early marker of hypoxic insult. Therefore, in concert with all other findings, it may constitute valid support for the forensic pathologist to ascertain the cause of death in case of suspected intoxication by N2O.
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Affiliation(s)
- Andrea Cioffi
- Section of Forensic Science, Section of Legal Medicine, Department of Clinical and Experimental Medicine, University of Foggia, Viale Europa 12, 71122, Foggia, Italy
| | - Camilla Cecannecchia
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Maria Antonella Bosco
- Section of Forensic Science, Section of Legal Medicine, Department of Clinical and Experimental Medicine, University of Foggia, Viale Europa 12, 71122, Foggia, Italy
| | - Giovanni Gurgoglione
- Section of Forensic Science, Section of Legal Medicine, Department of Clinical and Experimental Medicine, University of Foggia, Viale Europa 12, 71122, Foggia, Italy
| | - Benedetta Baldari
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Stefania De Simone
- Section of Forensic Science, Section of Legal Medicine, Department of Clinical and Experimental Medicine, University of Foggia, Viale Europa 12, 71122, Foggia, Italy.
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8
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Takada Y, Fujita M, Takada YK. Virtual Screening of Protein Data Bank via Docking Simulation Identified the Role of Integrins in Growth Factor Signaling, the Allosteric Activation of Integrins, and P-Selectin as a New Integrin Ligand. Cells 2023; 12:2265. [PMID: 37759488 PMCID: PMC10527219 DOI: 10.3390/cells12182265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/02/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Integrins were originally identified as receptors for extracellular matrix (ECM) and cell-surface molecules (e.g., VCAM-1 and ICAM-1). Later, we discovered that many soluble growth factors/cytokines bind to integrins and play a critical role in growth factor/cytokine signaling (growth factor-integrin crosstalk). We performed a virtual screening of protein data bank (PDB) using docking simulations with the integrin headpiece as a target. We showed that several growth factors (e.g., FGF1 and IGF1) induce a integrin-growth factor-cognate receptor ternary complex on the surface. Growth factor/cytokine mutants defective in integrin binding were defective in signaling functions and act as antagonists of growth factor signaling. Unexpectedly, several growth factor/cytokines activated integrins by binding to the allosteric site (site 2) in the integrin headpiece, which is distinct from the classical ligand (RGD)-binding site (site 1). Since 25-hydroxycholesterol, a major inflammatory mediator, binds to site 2, activates integrins, and induces inflammatory signaling (e.g., IL-6 and TNFα secretion), it has been proposed that site 2 is involved in inflammatory signaling. We showed that several inflammatory factors (CX3CL1, CXCL12, CCL5, sPLA2-IIA, and P-selectin) bind to site 2 and activate integrins. We propose that site 2 is involved in the pro-inflammatory action of these proteins and a potential therapeutic target. It has been well-established that platelet integrin αIIbβ3 is activated by signals from the inside of platelets induced by platelet agonists (inside-out signaling). In addition to the canonical inside-out signaling, we showed that αIIbβ3 can be allosterically activated by inflammatory cytokines/chemokines that are stored in platelet granules (e.g., CCL5, CXCL12) in the absence of inside-out signaling (e.g., soluble integrins in cell-free conditions). Thus, the allosteric activation may be involved in αIIbβ3 activation, platelet aggregation, and thrombosis. Inhibitory chemokine PF4 (CXCL4) binds to site 2 but did not activate integrins, Unexpectedly, we found that PF4/anti-PF4 complex was able to activate integrins, indicating that the anti-PF4 antibody changed the phenotype of PF4 from inhibitory to inflammatory. Since autoantibodies to PF4 are detected in vaccine-induced thrombocytopenic thrombosis (VIPP) and autoimmune diseases (e.g., SLE, and rheumatoid arthritis), we propose that this phenomenon is related to the pathogenesis of these diseases. P-selectin is known to bind exclusively to glycans (e.g., sLex) and involved in cell-cell interaction by binding to PSGL-1 (CD62P glycoprotein ligand-1). Unexpectedly, through docking simulation, we discovered that the P-selectin C-type lectin domain functions as an integrin ligand. It is interesting that no one has studied whether P-selectin binds to integrins in the last few decades. The integrin-binding site and glycan-binding site were close but distinct. Also, P-selectin lectin domain bound to site 2 and allosterically activated integrins.
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Affiliation(s)
- Yoshikazu Takada
- Department of Dermatology, UC Davis School of Medicine, Sacramento, CA 95817, USA; (M.F.); (Y.K.T.)
- Department of Biochemistry and Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
| | - Masaaki Fujita
- Department of Dermatology, UC Davis School of Medicine, Sacramento, CA 95817, USA; (M.F.); (Y.K.T.)
| | - Yoko K. Takada
- Department of Dermatology, UC Davis School of Medicine, Sacramento, CA 95817, USA; (M.F.); (Y.K.T.)
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9
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Ogrodzinski L, Platt S, Goulding J, Alexander C, Farr TD, Woolard J, Hill SJ, Kilpatrick LE. Probing expression of E-selectin using CRISPR-Cas9-mediated tagging with HiBiT in human endothelial cells. iScience 2023; 26:107232. [PMID: 37496673 PMCID: PMC10366498 DOI: 10.1016/j.isci.2023.107232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 05/30/2023] [Accepted: 06/23/2023] [Indexed: 07/28/2023] Open
Abstract
E-selectin is expressed on endothelial cells in response to inflammatory cytokines and mediates leukocyte rolling and extravasation. However, studies have been hampered by lack of experimental approaches to monitor expression in real time in living cells. Here, NanoLuc Binary Technology (NanoBiT) in conjunction with CRISPR-Cas9 genome editing was used to tag endogenous E-selectin in human umbilical vein endothelial cells (HUVECs) with the 11 amino acid nanoluciferase fragment HiBiT. Addition of the membrane-impermeable complementary fragment LgBiT allowed detection of cell surface expression. This allowed the effect of inflammatory mediators on E-selectin expression to be monitored in real time in living endothelial cells. NanoBiT combined with CRISPR-Cas9 gene editing allows sensitive monitoring of real-time changes in cell surface expression of E-selectin and offers a powerful tool for future drug discovery efforts aimed at this important inflammatory protein.
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Affiliation(s)
- Lydia Ogrodzinski
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, University of Nottingham, NG7 2UH Nottingham, UK
- Centre of Membrane Proteins and Receptors, University of Birmingham and Nottingham, The Midlands, Nottingham, UK
| | - Simon Platt
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, University of Nottingham, NG7 2UH Nottingham, UK
- Centre of Membrane Proteins and Receptors, University of Birmingham and Nottingham, The Midlands, Nottingham, UK
| | - Joelle Goulding
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, University of Nottingham, NG7 2UH Nottingham, UK
- Centre of Membrane Proteins and Receptors, University of Birmingham and Nottingham, The Midlands, Nottingham, UK
| | - Cameron Alexander
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, Boots Building, University of Nottingham, NG7 2RD Nottingham, UK
| | - Tracy D. Farr
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, University of Nottingham, NG7 2UH Nottingham, UK
| | - Jeanette Woolard
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, University of Nottingham, NG7 2UH Nottingham, UK
- Centre of Membrane Proteins and Receptors, University of Birmingham and Nottingham, The Midlands, Nottingham, UK
| | - Stephen J. Hill
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, University of Nottingham, NG7 2UH Nottingham, UK
- Centre of Membrane Proteins and Receptors, University of Birmingham and Nottingham, The Midlands, Nottingham, UK
| | - Laura E. Kilpatrick
- Centre of Membrane Proteins and Receptors, University of Birmingham and Nottingham, The Midlands, Nottingham, UK
- Division of Bimolecular Science and Medicinal Chemistry, School of Pharmacy, Biodiscovery Institute, University of Nottingham, NG7 2RD Nottingham, UK
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10
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Takada YK, Simon SI, Takada Y. The C-type lectin domain of CD62P (P-selectin) functions as an integrin ligand. Life Sci Alliance 2023; 6:e202201747. [PMID: 37184585 PMCID: PMC10130748 DOI: 10.26508/lsa.202201747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 04/14/2023] [Accepted: 04/17/2023] [Indexed: 05/16/2023] Open
Abstract
Recognition of integrins by CD62P has not been reported and this motivated a docking simulation using integrin αvβ3 as a target. We predicted that the C-type lectin domain of CD62P functions as a potential integrin ligand and observed that it specifically bound to soluble β3 and β1 integrins. Known inhibitors of the interaction between CD62P-PSGL-1 did not suppress the binding, whereas the disintegrin domain of ADAM-15, a known integrin ligand, suppressed recognition by the lectin domain. Furthermore, an R16E/K17E mutation in the predicted integrin-binding interface located outside of the glycan-binding site within the lectin domain, strongly inhibited CD62P binding to integrins. In contrast, the E88D mutation that strongly disrupts glycan binding only slightly affected CD62P-integrin recognition, indicating that the glycan and integrin-binding sites are distinct. Notably, the lectin domain allosterically activated integrins by binding to the allosteric site 2. We conclude that CD62P-integrin binding may function to promote a diverse set of cell-cell adhesive interactions given that β3 and β1 integrins are more widely expressed than PSGL-1 that is limited to leukocytes.
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Affiliation(s)
- Yoko K Takada
- Department of Dermatology, UC Davis School of Medicine, Sacramento, CA, USA
| | - Scott I Simon
- Department of Dermatology, UC Davis School of Medicine, Sacramento, CA, USA
- Department of Biomedical Engineering, UC Davis, Davis, CA, USA
| | - Yoshikazu Takada
- Department of Dermatology, UC Davis School of Medicine, Sacramento, CA, USA
- Department of Biochemistry and Molecular Medicine, UC Davis School of Medicine, Sacramento, CA, USA
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11
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Morwood AJ, El-Karim IA, Clarke SA, Lundy FT. The Role of Extracellular Matrix (ECM) Adhesion Motifs in Functionalised Hydrogels. Molecules 2023; 28:4616. [PMID: 37375171 DOI: 10.3390/molecules28124616] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/05/2023] [Accepted: 05/12/2023] [Indexed: 06/29/2023] Open
Abstract
To create functional tissue engineering scaffolds, biomaterials should mimic the native extracellular matrix of the tissue to be regenerated. Simultaneously, the survival and functionality of stem cells should also be enhanced to promote tissue organisation and repair. Hydrogels, but in particular, peptide hydrogels, are an emerging class of biocompatible scaffolds which act as promising self-assembling biomaterials for tissue engineering and regenerative therapies, ranging from articular cartilage regeneration at joint defects, to regenerative spinal cord injury following trauma. To enhance hydrogel biocompatibility, it has become imperative to consider the native microenvironment of the site for regeneration, where the use of functionalised hydrogels with extracellular matrix adhesion motifs has become a novel, emerging theme. In this review, we will introduce hydrogels in the context of tissue engineering, provide insight into the complexity of the extracellular matrix, investigate specific adhesion motifs that have been used to generate functionalised hydrogels and outline their potential applications in a regenerative medicine setting. It is anticipated that by conducting this review, we will provide greater insight into functionalised hydrogels, which may help translate their use towards therapeutic roles.
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Affiliation(s)
- Anna J Morwood
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Ikhlas A El-Karim
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Susan A Clarke
- Medical Biology Centre, School of Nursing and Midwifery, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Fionnuala T Lundy
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
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12
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Lyu X, Zhang Z, Liu X, Geng L, Zhang M, Feng B. Prediction and Verification of Potential Therapeutic Targets for Non-Responders to Infliximab in Ulcerative Colitis. J Inflamm Res 2023; 16:2063-2078. [PMID: 37215377 PMCID: PMC10198282 DOI: 10.2147/jir.s409290] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/09/2023] [Indexed: 05/24/2023] Open
Abstract
Background Infliximab (IFX) has been widely used in ulcerative colitis (UC) patients. However, the subsequent effective treatment of IFX non-response in UC patients remains a challenge. This study aims to predict potential therapeutic targets for non-responders by performing a bioinformatic analysis of the data in the Gene Expression Omnibus (GEO) database and validation by biopsies. Methods Colonic mucosal biopsies expression profiles of IFX-treated UC patients (GSE73661, GSE16879) were utilized to predict potential therapeutic targets. Bioinformatics analyses were used to explore potential biological mechanisms. CytoHubba was performed to screen hub genes. We used a validation dataset and colonic mucosal biopsies of UC patients to validate hub genes. Results A total of 147 DEGs were identified (119 upregulated genes and 28 downregulated genes). GSEA showed that DEGs in GSE73661 were enriched in the pathways of the cytokine-cytokine receptor, the chemokine, and the adhesion molecules system. Based on the PPI network analysis, we identified four hub genes (and the transcription factor NF-κB). Then, we validate the expression of hub genes by reverse transcription-polymerase chain reaction (RT-PCR). We found higher expression of IL-6, IL1B, CXCL8, and CCL2 in non-responders compared to responders. Conclusion In summary, four potential targets (IL-6, IL1B, CXCL8, and CCL2) were finally identified by performing a bioinformatics analysis of the datasets in the GEO database. Their expression was confirmed in colonic mucosal biopsies of patients with UC. These results can help to further explore the mechanism of non-responders to IFX in UC and to provide potential targets for their subsequent treatment.
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Affiliation(s)
- Xue Lyu
- Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
| | - Zhe Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
| | - Xia Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
| | - Li Geng
- Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
| | - Muhan Zhang
- Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
| | - Baisui Feng
- Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
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13
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Li J, Qiu Y, Zhang C, Wang H, Bi R, Wei Y, Li Y, Hu B. The role of protein glycosylation in the occurrence and outcome of acute ischemic stroke. Pharmacol Res 2023; 191:106726. [PMID: 36907285 DOI: 10.1016/j.phrs.2023.106726] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/03/2023] [Accepted: 03/09/2023] [Indexed: 03/12/2023]
Abstract
Acute ischemic stroke (AIS) is a serious and life-threatening disease worldwide. Despite thrombolysis or endovascular thrombectomy, a sizeable fraction of patients with AIS have adverse clinical outcomes. In addition, existing secondary prevention strategies with antiplatelet and anticoagulant drugs therapy are not able to adequately decrease the risk of ischemic stroke recurrence. Thus, exploring novel mechanisms for doing so represents an urgent need for the prevention and treatment of AIS. Recent studies have discovered that protein glycosylation plays a critical role in the occurrence and outcome of AIS. As a common co- and post-translational modification, protein glycosylation participates in a wide variety of physiological and pathological processes by regulating the activity and function of proteins or enzymes. Protein glycosylation is involved in two causes of cerebral emboli in ischemic stroke: atherosclerosis and atrial fibrillation. Following ischemic stroke, the level of brain protein glycosylation becomes dynamically regulated, which significantly affects stroke outcome through influencing inflammatory response, excitotoxicity, neuronal apoptosis, and blood-brain barrier disruption. Drugs targeting glycosylation in the occurrence and progression of stroke may represent a novel therapeutic idea. In this review, we focus on possible perspectives about how glycosylation affects the occurrence and outcome of AIS. We then propose the potential of glycosylation as a therapeutic drug target and prognostic marker for AIS patients in the future.
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Affiliation(s)
- Jianzhuang Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanmei Qiu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chunlin Zhang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hailing Wang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rentang Bi
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanhao Wei
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanan Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Bo Hu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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14
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Caputo F, Barranco R, Ventura F, Fracasso T. Immunohistochemical detection of Fibronectin, P-Selectin, FVIII, HSP-70 and MRP-8 in the skin of ligature marks of suicidal hangings. J Forensic Leg Med 2023; 96:102524. [PMID: 37075596 DOI: 10.1016/j.jflm.2023.102524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 03/08/2023] [Accepted: 04/14/2023] [Indexed: 04/21/2023]
Abstract
The determination of vitality of skin injuries is one of the most central research areas in forensic pathology for it is often necessary to discern antemortem from postmortem damage. Typical is the case of a hanging, which should be distinguished from the postmortem suspension of a body. In this study, 15 human skin samples from ligature marks (study group) of victims of suicidal hanging and 15 uninjured skin samples (negative control group) were analyzed. In addition, 15 skin samples from ecchymoses in homicide victims with short survival intervals were investigated as a positive control group. Sections were processed for immunohistochemistry in order to detect the expression of Fibronectin, P-Selectin, FVIII, HSP-70, and MRP8. Immunohistochemical reactions were classified semiquantitatively (mild - score 1, moderate - score 2, and intense - score 3). In the ligature marks, Fibronectin was significantly less expressed compared to ecchymoses. The expression was similar to hanging marks and uninjured skin. In both ligature marks and ecchymoses, the expression of P-Selectin was significantly increased compared to uninjured skin. In both ligature marks and ecchymoses, expression of HSP-70 was significantly decreased in the epidermis compared to uninjured skin. In both ligature marks and ecchymoses, the expression of FVIII and MRP8 was significantly increased in the dermis and hypodermis compared to uninjured skin. The results of this study show that the immunohistochemical study of early inflammatory and coagulation factors could help determine the vitality of ligature marks. The combined analysis of P-Selectin, FVIII, HSP-70, and MRP-8 can be considered for this purpose.
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Affiliation(s)
- Fiorella Caputo
- University of Genova, Department of Legal and Forensic Medicine, Via De Toni 12, Genova, 16132, Italy; University of Catanzaro, Department of Legal and Forensic Medicine, Viale Europa, Catanzaro, 88100, Italy
| | - Rosario Barranco
- University of Genova, Department of Legal and Forensic Medicine, Via De Toni 12, Genova, 16132, Italy.
| | - Francesco Ventura
- University of Genova, Department of Legal and Forensic Medicine, Via De Toni 12, Genova, 16132, Italy
| | - Tony Fracasso
- University Center of Legal Medicine, Lausanne Geneva, Geneva University Hospitals, Switzerland
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15
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Wang L, Wilhelm S. Exploiting endothelial transcytosis to reach into the brain. NATURE MATERIALS 2023; 22:282-283. [PMID: 36864160 DOI: 10.1038/s41563-023-01487-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Affiliation(s)
- Lin Wang
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK, USA
| | - Stefan Wilhelm
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK, USA.
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Institute for Biomedical Engineering, Science, and Technology (IBEST), University of Oklahoma, Norman, OK, USA.
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16
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Sialyl Lewis X/A and Cytokeratin Crosstalk in Triple Negative Breast Cancer. Cancers (Basel) 2023; 15:cancers15030731. [PMID: 36765690 PMCID: PMC9913872 DOI: 10.3390/cancers15030731] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/31/2022] [Accepted: 01/23/2023] [Indexed: 01/27/2023] Open
Abstract
Triple-negative breast cancer (TNBC) encompasses multiple entities and is generally highly aggressive and metastatic. We aimed to determine the clinical and biological relevance of Sialyl-Lewis X and A (sLeX/A)-a fucosylated glycan involved in metastasis-in TNBC. Here, we studied tissues from 50 TNBC patients, transcripts from a TNBC dataset from The Cancer Genome Atlas (TCGA) database, and a primary breast cancer cell line. All 50 TNBC tissue samples analysed expressed sLeX/A. Patients with high expression of sLeX/A had 3 years less disease-free survival than patients with lower expression. In tissue, sLeX/A negatively correlated with cytokeratins 5/6 (CK5/6, which was corroborated by the inverse correlation between fucosyltransferases and CK5/6 genes. Our observations were confirmed in vitro when inhibition of sLeX/A remarkably increased expression of CK5/6, followed by a decreased proliferation and invasion capacity. Among the reported glycoproteins bearing sLeX/A and based on the STRING tool, α6 integrin showed the highest interaction score with CK5/6. This is the first report on the sLeX/A expression in TNBC, highlighting its association with lower disease-free survival and its inverse crosstalk with CK5/6 with α6 integrin as a mediator. All in all, sLeX/A is critical for TNBC malignancy and a potential prognosis biomarker and therapeutic target.
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17
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Rayat S, Ramezanidoraki N, Kazemi N, Modarressi MH, Falah M, Zardadi S, Morovvati S. Association study between polymorphisms in MIA3, SELE, SMAD3 and CETP genes and coronary artery disease in an Iranian population. BMC Cardiovasc Disord 2022; 22:298. [PMID: 35768776 PMCID: PMC9245199 DOI: 10.1186/s12872-022-02695-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 05/31/2022] [Indexed: 11/10/2022] Open
Abstract
Background Coronary artery disease (CAD) is the most common heart disease. Several studies have shown association between some polymorphism in different genes with CAD. Finding this association can be used in order to early diagnosis and prevention of CAD. Method 101 CAD patients with ≥ 50% luminal stenosis of any coronary vessel as case group and 111 healthy individuals as control group were selected. the polymorphisms were evaluated by ARMS-PCR and RFLP-PCR methods. Result The results of this study show that there is no significant association between rs17228212, rs17465637, and rs708272 and risk of CAD. But there is significant association between risk of CAD and rs5355 (p-value = 0.022) and rs3917406 (p-value = 0.006) in total cases, and rs5882 (p-value = 0.001) in male cases. Conclusions Our findings revealed a significant interaction between CETP SNPs and CETP activity for affecting HDL-C levels. The SELE gene is a known cell adhesion molecule with a significant role in inflammation. Studies about possible linkage between SELE gene polymorphisms and the development of CAD are conflicting. We have found a significant association between polymorphisms of SELE gene and risk of CAD.
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Affiliation(s)
- Sima Rayat
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Nasim Ramezanidoraki
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Nima Kazemi
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad H Modarressi
- Department of Medical Genetics, Tehran University of Medical Sciences, Keshavarz Blvd, Tehran, Iran
| | - Masoumeh Falah
- ENT and Head and Neck Research Center, The Five Senses Health Institute, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Safoura Zardadi
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Saeid Morovvati
- Department of Genetics, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
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18
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Radovani B, Gudelj I. N-Glycosylation and Inflammation; the Not-So-Sweet Relation. Front Immunol 2022; 13:893365. [PMID: 35833138 PMCID: PMC9272703 DOI: 10.3389/fimmu.2022.893365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/30/2022] [Indexed: 12/28/2022] Open
Abstract
Chronic inflammation is the main feature of many long-term inflammatory diseases such as autoimmune diseases, metabolic disorders, and cancer. There is a growing number of studies in which alterations of N-glycosylation have been observed in many pathophysiological conditions, yet studies of the underlying mechanisms that precede N-glycome changes are still sparse. Proinflammatory cytokines have been shown to alter the substrate synthesis pathways as well as the expression of glycosyltransferases required for the biosynthesis of N-glycans. The resulting N-glycosylation changes can further contribute to disease pathogenesis through modulation of various aspects of immune cell processes, including those relevant to pathogen recognition and fine-tuning the inflammatory response. This review summarizes our current knowledge of inflammation-induced N-glycosylation changes, with a particular focus on specific subsets of immune cells of innate and adaptive immunity and how these changes affect their effector functions, cell interactions, and signal transduction.
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Affiliation(s)
- Barbara Radovani
- Department of Biotechnology, University of Rijeka, Rijeka, Croatia
| | - Ivan Gudelj
- Department of Biotechnology, University of Rijeka, Rijeka, Croatia
- Genos Glycoscience Research Laboratory, Zagreb, Croatia
- *Correspondence: Ivan Gudelj,
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19
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Burnie J, Persaud AT, Thaya L, Liu Q, Miao H, Grabinsky S, Norouzi V, Lusso P, Tang VA, Guzzo C. P-selectin glycoprotein ligand-1 (PSGL-1/CD162) is incorporated into clinical HIV-1 isolates and can mediate virus capture and subsequent transfer to permissive cells. Retrovirology 2022; 19:9. [PMID: 35597982 PMCID: PMC9123692 DOI: 10.1186/s12977-022-00593-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 04/21/2022] [Indexed: 11/16/2022] Open
Abstract
Background P-selectin glycoprotein ligand-1 (PSGL-1/CD162) has been studied extensively for its role in mediating leukocyte rolling through interactions with its cognate receptor, P-selectin. Recently, PSGL-1 was identified as a novel HIV-1 host restriction factor, particularly when expressed at high levels in the HIV envelope. Importantly, while the potent antiviral activity of PSGL-1 has been clearly demonstrated in various complementary model systems, the breadth of PSGL-1 incorporation across genetically diverse viral isolates and clinical isolates has yet to be described. Additionally, the biological activity of virion-incorporated PSGL-1 has also yet to be shown. Results Herein we assessed the levels of PSGL-1 on viruses produced through transfection with various amounts of PSGL-1 plasmid DNA (0–250 ng), compared to levels of PSGL-1 on viruses produced through infection of T cell lines and primary PBMC. We found that very low levels of PSGL-1 plasmid DNA (< 2.5 ng/well) were necessary to generate virus models that could closely mirror the phenotype of viruses produced via infection of T cells and PBMC. Unique to this study, we show that PSGL-1 is incorporated in a broad range of HIV-1 and SIV isolates and that virions with incorporated PSGL-1 are detectable in plasma from viremic HIV-1-infected individuals, corroborating the relevance of PSGL-1 in natural infection. Additionally, we show that PSGL-1 on viruses can bind its cognate selectin receptors, P-, E-, and L-selectins. Finally, we show viruses with endogenous levels of PSGL-1 can be captured by P-selectin and transferred to HIV-permissive bystander cells, highlighting a novel role for PSGL-1 in HIV-1 infection. Notably, viruses which contained high levels of PSGL-1 were noninfectious in our hands, in line with previous findings reporting the potent antiviral activity of PSGL-1. Conclusions Our results indicate that levels of PSGL-1 incorporation into virions can vary widely among model systems tested, and that careful tailoring of plasmid levels is required to recapitulate physiological systems when using pseudovirus models. Taken together, our data suggest that PSGL-1 may play diverse roles in the physiology of HIV-1 infection, particularly due to the functionally active state of PSGL-1 on virion surfaces and the breadth of PSGL-1 incorporation among a wide range of viral isolates. Supplementary Information The online version contains supplementary material available at 10.1186/s12977-022-00593-5.
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Affiliation(s)
- Jonathan Burnie
- Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON, Canada.,Department of Cell and Systems Biology, University of Toronto, 25 Harbord Street, Toronto, ON, Canada
| | - Arvin Tejnarine Persaud
- Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON, Canada.,Department of Cell and Systems Biology, University of Toronto, 25 Harbord Street, Toronto, ON, Canada
| | - Laxshaginee Thaya
- Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON, Canada.,Department of Cell and Systems Biology, University of Toronto, 25 Harbord Street, Toronto, ON, Canada
| | - Qingbo Liu
- Viral Pathogenesis Section, Laboratory of Immunoregulation (LIR), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Huiyi Miao
- Viral Pathogenesis Section, Laboratory of Immunoregulation (LIR), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Stephen Grabinsky
- Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON, Canada
| | - Vanessa Norouzi
- Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON, Canada
| | - Paolo Lusso
- Viral Pathogenesis Section, Laboratory of Immunoregulation (LIR), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Vera A Tang
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, Flow Cytometry and Virometry Core Facility, University of Ottawa, Ottawa, ON, Canada
| | - Christina Guzzo
- Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON, Canada. .,Department of Cell and Systems Biology, University of Toronto, 25 Harbord Street, Toronto, ON, Canada.
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20
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Nashine S, Cohen P, Wan J, Kenney C. Effect of Humanin G (HNG) on inflammation in age-related macular degeneration (AMD). Aging (Albany NY) 2022; 14:4247-4269. [PMID: 35576057 PMCID: PMC9186758 DOI: 10.18632/aging.204074] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/25/2022] [Indexed: 12/03/2022]
Abstract
Inflammation plays a crucial role in the etiology and pathogenesis of AMD (Age-related Macular Degeneration). Humanin G (HNG) is a Mitochondrial Derived Peptide (MDP) that is cytoprotective in AMD and can protect against mitochondrial and cellular stress induced by damaged AMD mitochondria. The goal of this study was to test our hypothesis that inflammation-associated marker protein levels are increased in AMD and treatment with HNG leads to reduction in their protein levels. Humanin protein levels were measured in the plasma of AMD patients and normal subjects using ELISA assay. Humanin G was added to AMD and normal (control) cybrids which had identical nuclei from mitochondria-deficient ARPE-19 cells but differed in mitochondrial DNA (mtDNA) content derived from clinically characterized AMD patients and normal (control) subjects. Cell lysates were extracted from untreated and HNG-treated AMD and normal cybrids, and the Luminex XMAP multiplex assay was used to measure the levels of inflammatory proteins. AMD plasma showed reduced Humanin protein levels, but higher protein levels of inflammation markers compared to control plasma samples. In AMD RPE cybrid cells, Humanin G reduced the CD62E/ E-Selectin, CD62P/ P-Selectin, ICAM-1, TNF-α, MIP-1α, IFN–γ, IL-1β, IL-13, and IL-17A protein levels, thereby suggesting that Humanin G may rescue from mtDNA-mediated inflammation in AMD cybrids. In conclusion, we present novel findings that: A) show reduced Humanin protein levels in AMD plasma vs. normal plasma; B) suggest the role of inflammatory markers in AMD pathogenesis, and C) highlight the positive effects of Humanin G in reducing inflammation in AMD.
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Affiliation(s)
- Sonali Nashine
- Department of Ophthalmology, Gavin Herbert Eye Institute, University of California Irvine, Irvine, CA 92697, USA
| | - Pinchas Cohen
- Davis School of Gerontology, University of Southern California, Los Angeles, CA 90007, USA
| | - Junxiang Wan
- Davis School of Gerontology, University of Southern California, Los Angeles, CA 90007, USA
| | - Cristina Kenney
- Department of Ophthalmology, Gavin Herbert Eye Institute, University of California Irvine, Irvine, CA 92697, USA.,Department of Pathology and Laboratory Medicine, University of California, Irvine, CA 92697, USA
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21
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Purdy M, Obi A, Myers D, Wakefield T. P- and E- selectin in venous thrombosis and non-venous pathologies. J Thromb Haemost 2022; 20:1056-1066. [PMID: 35243742 PMCID: PMC9314977 DOI: 10.1111/jth.15689] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/22/2022] [Indexed: 12/12/2022]
Abstract
Venous thromboembolism is a very common and costly health problem worldwide. Anticoagulant treatment for VTE is imperfect: all have the potential for significant bleeding, and none prevent the development of post thrombotic syndrome after deep vein thrombosis or chronic thromboembolic pulmonary hypertension after pulmonary embolism. For these reasons, alternate forms of therapy with improved efficacy and decreased bleeding are needed. Selectins are a family (P-selectin, E-selectin, L-selectin) of glycoproteins that facilitate and augment thrombosis, modulating neutrophil, monocyte, and platelet activity. P- and E-selectin have been investigated as potential biomarkers for thrombosis. Inhibition of P-selectin and E-selectin decrease thrombosis and vein wall fibrosis, with no increase in bleeding. Selectin inhibition is a promising avenue of future study as either a stand-alone treatment for VTE or as an adjunct to standard anticoagulation therapies.
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Affiliation(s)
- Megan Purdy
- University of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Andrea Obi
- Section of Vascular SurgeryDepartment of SurgeryUniversity of MichiganAnn ArborMichiganUSA
| | - Daniel Myers
- Section of Vascular SurgeryDepartment of SurgeryUniversity of MichiganAnn ArborMichiganUSA
- Unit for Laboratory Animal Medicine and Section of Vascular SurgeryDepartment of SurgeryUniversity of MichiganAnn ArborMichiganUSA
| | - Thomas Wakefield
- Section of Vascular SurgeryDepartment of SurgeryUniversity of MichiganAnn ArborMichiganUSA
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22
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The interface between biochemical signaling and cell mechanics shapes T lymphocyte migration and activation. Eur J Cell Biol 2022; 101:151236. [DOI: 10.1016/j.ejcb.2022.151236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 11/18/2022] Open
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23
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Yeini E, Satchi-Fainaro R. The role of P-selectin in cancer-associated thrombosis and beyond. Thromb Res 2022; 213 Suppl 1:S22-S28. [DOI: 10.1016/j.thromres.2021.12.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/12/2021] [Accepted: 12/27/2021] [Indexed: 10/18/2022]
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24
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Cappenberg A, Kardell M, Zarbock A. Selectin-Mediated Signaling-Shedding Light on the Regulation of Integrin Activity in Neutrophils. Cells 2022; 11:cells11081310. [PMID: 35455989 PMCID: PMC9025114 DOI: 10.3390/cells11081310] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 02/04/2023] Open
Abstract
As a consequence of tissue injury or infection, neutrophils are recruited in a stepwise recruitment process from the bloodstream into the surrounding tissue. Selectins are a family of adhesion molecules comprised of L-, E-, and P-selectin. Differences in expression patterns, protein structure, and ligand binding characteristics mediate distinct functions of each selectin. Interactions of selectins and their counter-receptors mediate the first contact of neutrophils with the endothelium, as well as subsequent neutrophil rolling along the endothelial surface. For efficient neutrophil recruitment, activation of β2-integrins on the cell surface is essential. Integrin activation can be elicited via selectin- as well as chemokine-mediated inside-out signaling resulting in integrin conformational changes and clustering. Dysregulation of selectin-induced integrin activation on neutrophils is involved in the development of severe pathological disease conditions including leukocyte adhesion deficiency (LAD) syndromes in humans. Here, we review molecular mechanisms involved in selectin-mediated signaling pathways in neutrophils and their impact on integrin activation, neutrophil recruitment, and inflammatory diseases.
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Stutte S, Ishikawa-Ankerhold H, Lynch L, Eickhoff S, Nasiscionyte S, Guo C, van den Heuvel D, Setzensack D, Colonna M, Maier-Begandt D, Weckbach L, Brocker T, Schulz C, Walzog B, von Andrian U. High-Fat Diet Rapidly Modifies Trafficking, Phenotype, and Function of Plasmacytoid Dendritic Cells in Adipose Tissue. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:1445-1455. [PMID: 35181637 PMCID: PMC8919350 DOI: 10.4049/jimmunol.2100022] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 01/05/2022] [Indexed: 06/14/2023]
Abstract
Plasmacytoid dendritic cells (pDCs) display an increased abundance in visceral adipose tissue (VAT) of humans with obesity. In the current study, we set out to decipher the molecular mechanisms of their recruitment to VAT and the functional relevance of this process. We observed increased pDC numbers in murine blood, liver, spleen, and VAT after feeding a high-fat diet (HFD) for 3 wk when compared with a standard diet. pDCs were enriched in fat-associated lymphoid clusters representing highly specific lymphoid regions within VAT. HFD led to an enlargement of fat-associated lymphoid clusters with an increased density and migratory speed of pDCs as shown by intravital multiphoton microscopy. For their recruitment into VAT, pDCs employed P-selectin with E-selectin and L-selectin being only critical in response to HFD, indicating that the molecular cues underlying pDC trafficking were dependent on the nutritional state. Subsequent recruitment steps required α4β1 and α4β7 integrins and engagement of CCR7. Application of fingolimod (FTY720) abrogated egress of pDCs from VAT, indicating the involvement of sphingosine-1-phosphate in this process. Furthermore, HFD altered pDC functions by promoting their activation and type 1 IFN expression. Blocking pDC infiltration into VAT prevented weight gain and improved glucose tolerance during HFD. In summary, a HFD fundamentally alters pDC biology by promoting their trafficking, retention, and activation in VAT, which in turn seems to regulate metabolism.
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Affiliation(s)
- Susanne Stutte
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany;
- Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
- Institute for Immunology, Faculty of Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA
| | - Hellen Ishikawa-Ankerhold
- Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
- Department of Internal Medicine I, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Lydia Lynch
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA
- Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
| | - Sarah Eickhoff
- Institute of Systems Immunology, University of Würzburg, Würzburg, Germany
| | - Simona Nasiscionyte
- Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Chenglong Guo
- Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
- Department of Internal Medicine I, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Dominic van den Heuvel
- Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
- Department of Internal Medicine I, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Daniel Setzensack
- Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
- Department of Internal Medicine I, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Marco Colonna
- Washington University, School of Medicine, St. Louis, MO; and
| | - Daniela Maier-Begandt
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
- Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Ludwig Weckbach
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
- Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
- Department of Internal Medicine I, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Thomas Brocker
- Institute for Immunology, Faculty of Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Christian Schulz
- Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
- Department of Internal Medicine I, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Barbara Walzog
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
- Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Ulrich von Andrian
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA
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Liu X, Liu X, Kusaykin MI, Zhang M, Bai X, Cui T, Shi Y, Liu C, Jia A. Structural characterization of a P-selectin and EGFR dual-targeting fucoidan from Sargassum fusiforme. Int J Biol Macromol 2022; 199:86-95. [PMID: 34968550 DOI: 10.1016/j.ijbiomac.2021.12.135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 12/12/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022]
Abstract
In this study, we obtained fucoidans SFP, SHP, STP, and FVP from Sargassum fusiforme, Sargassum horneri, Sargassumthunbergii, and Fucus vesiculosus, respectively. Chitosan/fucoidan nanoparticles (Cs/F NPs) were prepared using the fucoidans mentioned above. SFP NPs and SHP NPs showed strong binding abilities to P-selectin and epithelial growth factor receptor (EGFR). Given the yields from the alga, SFP was first selected to explore the structural characteristics of the P-selectin and EGFR dual-targeting fucoidan. SFP had an estimated molecular weight of 739 kDa and was mainly composed of galactose (26.57%, mol%) and fucose (66.81%), with minor amounts of mannose (2.54%), glucosamine (0.42%), and glucose (3.66%). Galactose and fucose accounted for thevast majority. Further investigation, including methylation analysis, one- and two-dimensional nuclear magnetic resonance, and mass spectroscopy, was performed to reveal the fine structure of SFP. The results indicated that SFP mainly consisted of → 3)-α-l-Fucp-(1→, →4)-α-l-Fucp-(1→, →3,4)-α-l-Fucp-(1→, →3)-β-d-Galp-(1→, and minor → 6)-β-d-Galp-(1→, partially sulfated at the C-4 of → 3)-α-l-Fucp-(1→, C-3 of → 4)-α-l-Fucp-(1→, C-3 of → 6)-β-d-Galp-(1→, and C-6 of → 3)-β-d-Galp-(1 → . Sulfated fuco- and galactofuco-segments formed the branches.
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Affiliation(s)
- Xue Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250103, China
| | - Xin Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250103, China
| | - Mikhail I Kusaykin
- Laboratory of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, 159, Prospect 100-let Vladivostoku, 690022 Vladivostok, Russia
| | - Miansong Zhang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250103, China; Centre for Marine Bioproducts Development, College of Medicine and Public Health, Flinders University, Adelaide, SA 5042, Australia
| | - Xinfeng Bai
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250103, China
| | - Tingting Cui
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250103, China
| | - Yaping Shi
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250103, China
| | - Changheng Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250103, China
| | - Airong Jia
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250103, China.
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Dai M, Jiang T, Luo CD, Du W, Wang M, Qiu QY, Wang H. Radiofrequency ablation reduces expression of SELF by upregulating the expression of microRNA-26a/b in the treatment of atrial fibrillation. J Interv Card Electrophysiol 2022; 65:663-673. [PMID: 35864328 PMCID: PMC9726778 DOI: 10.1007/s10840-022-01305-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 07/11/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND In this study, we aimed to investigate the role of miR-26a and miR-26b in the management of AF. METHODS Real-time PCR was carried out to determine plasma microRNA expression in AF patients pre- and post-radiofrequency ablation. The correlation between the expression of SELP and miR-26a/miR-26b was also studied using luciferase assays to establish a miR-26a/miR-26b/SELP signaling pathway. RESULTS The relative expression of SELP reached its peak in pre-ablation AF ( +) patients, while ablation treatment reduced the expression of SELP in AF ( +) patients. Similarly, AF pigs showed dysregulation of miR-26a/b and SELP, thus verifying the involvement of miR-26a/b and SELP in AF. Meanwhile, the regulatory association between SELP and miR-26a/b was also investigated, and the results showed that the presence of pre-miR-26a/b increased the levels of miR-26a/b and inhibited the mRNA/protein expression of SELP. Finally, using bioinformatic tools and luciferase assays, SELP mRNA was confirmed as the target of miR-26a/b, which affected the effect of AF ablation treatment. CONCLUSIONS RFA helped to restore circulating levels of miR-26, which were reduced in atrial fibrillation. Meanwhile, miR-26 is a potential cause for the elevated plasma levels of pro-thrombogenic SELP in that disease.
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Affiliation(s)
- Min Dai
- grid.54549.390000 0004 0369 4060Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, 12 Changjia Alley, Fucheng District, Mianyang, 621000 Sichuan China
| | - Tao Jiang
- grid.54549.390000 0004 0369 4060Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, 12 Changjia Alley, Fucheng District, Mianyang, 621000 Sichuan China
| | - Cai-dong Luo
- grid.54549.390000 0004 0369 4060Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, 12 Changjia Alley, Fucheng District, Mianyang, 621000 Sichuan China
| | - Wei Du
- grid.54549.390000 0004 0369 4060Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, 12 Changjia Alley, Fucheng District, Mianyang, 621000 Sichuan China
| | - Min Wang
- grid.54549.390000 0004 0369 4060Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, 12 Changjia Alley, Fucheng District, Mianyang, 621000 Sichuan China
| | - Qing-yan Qiu
- grid.54549.390000 0004 0369 4060Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, 12 Changjia Alley, Fucheng District, Mianyang, 621000 Sichuan China
| | - Hu Wang
- grid.54549.390000 0004 0369 4060Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, 12 Changjia Alley, Fucheng District, Mianyang, 621000 Sichuan China
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Verma AK, Aladel A, Dabeer S, Ahmad I, Khan MI, Almutairi MG, Al-Harbi AI, Beg MMA. Clinical Importance of FNDC-5 and Selectin-E mRNA Expression Among Type 2 Diabetics with and without Obesity. Diabetes Metab Syndr Obes 2022; 15:1011-1021. [PMID: 35401010 PMCID: PMC8986209 DOI: 10.2147/dmso.s352483] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 03/10/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is growing illnesses associated with metabolic dysregulation such as obesity affecting a large population become leading causes of death worldwide. Fibronectin type III domain-containing protein 5 (FNDC-5) and selectin-E were suggested to have effects on metabolism and diabetes, therefore present study aimed to evaluate the clinical importance of FNDC-5 and selectin-E among the T2DM patients with and without obesity. METHODS Study included cohort of 200 T2DM patients with and without obesity. We evaluated FNDC-5, selectin-E mRNA expression as well as vitamin-D, and vitamin-B12 levels in among the T2DM patients with and without obesity. RESULTS Study observed significant difference in biochemical parameters included in study. T2DM patients with obesity had significantly higher fasting blood glucose levels (p<0.0001) and HbA1c (glycated hemoglobin) (p<0.0001) compared to those T2DM patients without obesity. T2DM patients with obesity also had higher systolic blood pressure (p=0.001), LDL (low density lipoprotein) (p=0.02), TG (triglycerides) (p=0.02) and cholesterol (p=0.01) compared to T2DM patients without obesity. The mRNA expression of FNDC-5 (p<0.0001) was lower in T2DM patients with obesity compared to T2DM patients without obesity. It was observed that the T2DM patients with vitamin-D deficiency had significantly lower FNDC-5 mRNA expression (p=0.03) when compared with those with sufficient vitamin-D level. T2DM patients with clinically normal vitamin-B12 level expressed 0.60 fold FNDC-5 mRNA expression while B12 deficient T2DM patients had 0.28 fold FNDC-5 mRNA expression (p=0.005). No as such significant association was was observed with selectin-E. A negative correlation of FNDC-5 mRNA expression with Post prandial glucose (mg/dl) (p=0.04) and TG (mg/dl) (p=0.02) was observed. CONCLUSION FNDC-5 down regulation was observed with T2DM with obesity, vitamin-D and vitamin-B12 deficiency suggesting obesity, vitamin-D and vitamin-B12 deficiency could be the factor for FNDC-5 down-regulation leading to worseness or progression of disease. We suggest that FNDC-5 down-regulation could be used as an indicator for T2DM worseness and development of other associated complications.
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Affiliation(s)
- Amit K Verma
- Department of Biotechnology, Jamia Millia Islamia University, New Delhi, India
- Department of Zoology and Environmental Sciences, Gurukul Kangri Vishwavidyalaya, Haridwar, India
| | - Alanoud Aladel
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Sadaf Dabeer
- Department of Exercise Science and Sport Management, Kennesaw State University, Kennesaw, GA, USA
| | - Irfan Ahmad
- Department of Clinical Laboratory Science, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Mohammad Idreesh Khan
- Department of Clinical Nutrition, College of Applied Health Sciences in Arras, Qassim University, Buraidah, Saudi Arabia
| | - Malak Ghazi Almutairi
- Department of nutrition, Almethnab General Hospital, Qassim Health Cluster, Ministry of Health, Al Mithnab, Saudi Arabia
| | - Alhanouf I Al-Harbi
- Department of Medical Laboratory, College of Applied Medical Sciences, Taibah University, Yanbu, Saudi Arabia
| | - Mirza Masroor Ali Beg
- Faculty of Medicine, Ala-Too International University, Bishkek, Kyrgyzstan
- Centre for Promotion of Medical Research, Ala-Too International University, Bishkek, Kyrgyzstan
- Correspondence: Mirza Masroor Ali Beg, Email
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Grenier JMP, Testut C, Fauriat C, Mancini SJC, Aurrand-Lions M. Adhesion Molecules Involved in Stem Cell Niche Retention During Normal Haematopoiesis and in Acute Myeloid Leukaemia. Front Immunol 2021; 12:756231. [PMID: 34867994 PMCID: PMC8636127 DOI: 10.3389/fimmu.2021.756231] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/27/2021] [Indexed: 12/11/2022] Open
Abstract
In the bone marrow (BM) of adult mammals, haematopoietic stem cells (HSCs) are retained in micro-anatomical structures by adhesion molecules that regulate HSC quiescence, proliferation and commitment. During decades, researchers have used engraftment to study the function of adhesion molecules in HSC's homeostasis regulation. Since the 90's, progress in genetically engineered mouse models has allowed a better understanding of adhesion molecules involved in HSCs regulation by BM niches and raised questions about the role of adhesion mechanisms in conferring drug resistance to cancer cells nested in the BM. This has been especially studied in acute myeloid leukaemia (AML) which was the first disease in which the concept of cancer stem cell (CSC) or leukemic stem cells (LSCs) was demonstrated. In AML, it has been proposed that LSCs propagate the disease and are able to replenish the leukemic bulk after complete remission suggesting that LSC may be endowed with drug resistance properties. However, whether such properties are due to extrinsic or intrinsic molecular mechanisms, fully or partially supported by molecular crosstalk between LSCs and surrounding BM micro-environment is still matter of debate. In this review, we focus on adhesion molecules that have been involved in HSCs or LSCs anchoring to BM niches and discuss if inhibition of such mechanism may represent new therapeutic avenues to eradicate LSCs.
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Affiliation(s)
- Julien M P Grenier
- Aix-Marseille Université, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Paoli Calmettes, Centre de Recherche en Cancérologie de Marseille (CRCM), Equipe Labellisée Ligue Nationale Contre le Cancer 2020, Marseille, France
| | - Céline Testut
- Aix-Marseille Université, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Paoli Calmettes, Centre de Recherche en Cancérologie de Marseille (CRCM), Equipe Labellisée Ligue Nationale Contre le Cancer 2020, Marseille, France
| | - Cyril Fauriat
- Aix-Marseille Université, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Paoli Calmettes, Centre de Recherche en Cancérologie de Marseille (CRCM), Equipe Labellisée Ligue Nationale Contre le Cancer 2020, Marseille, France
| | - Stéphane J C Mancini
- Aix-Marseille Université, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Paoli Calmettes, Centre de Recherche en Cancérologie de Marseille (CRCM), Equipe Labellisée Ligue Nationale Contre le Cancer 2020, Marseille, France
| | - Michel Aurrand-Lions
- Aix-Marseille Université, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Paoli Calmettes, Centre de Recherche en Cancérologie de Marseille (CRCM), Equipe Labellisée Ligue Nationale Contre le Cancer 2020, Marseille, France
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Sehnert B, Pohle S, Heuberger C, Rzepka R, Seidl M, Nimmerjahn F, Chevalier N, Titze J, Voll RE. Low-Salt Diet Attenuates B-Cell- and Myeloid-Cell-Driven Experimental Arthritides by Affecting Innate as Well as Adaptive Immune Mechanisms. Front Immunol 2021; 12:765741. [PMID: 34925335 PMCID: PMC8678127 DOI: 10.3389/fimmu.2021.765741] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 11/09/2021] [Indexed: 12/28/2022] Open
Abstract
A link between high sodium chloride (salt) intake and the development of autoimmune diseases was previously reported. These earlier studies demonstrated exacerbation of experimental autoimmune encephalomyelitis and colitis by excess salt intake associated with Th17- and macrophage-mediated mechanisms. Little is known about the impact of dietary salt intake on experimental arthritides. Here, we investigated if salt restriction can exert beneficial effects on collagen-induced arthritis (CIA) and K/BxN serum transfer-induced arthritis (STIA). CIA depends on both adaptive and innate immunity, while STIA predominantly mimics the innate immune cell-driven effector phase of arthritis. In both models, low salt (LS) diet significantly decreased arthritis severity compared to regular salt (RS) and high salt (HS) diet. We did not observe an aggravation of arthritis with HS diet compared to RS diet. Remarkably, in STIA, LS diet was as effective as IL-1 receptor blocking treatment. Complement-fixing anti-CII IgG2a antibodies are associated with inflammatory cell infiltration and cartilage destruction. LS diet reduced anti-CII IgG2a levels in CIA and decreased the anti-CII IgG2a/IgG1 ratios pointing toward a more Th2-like response. Significantly less inflammatory joint infiltrates and cartilage breakdown associated with reduced protein concentrations of IL-1 beta (CIA and STIA), IL-17 (CIA), and the monocyte chemoattractant protein-1 (MCP-1) (CIA) were detected in mice receiving LS diet compared to HS diet. However, we did not find a reduced IL-17A expression in CD4+ T cells upon salt restriction in CIA. Analysis of mRNA transcripts and immunoblots revealed a link between LS diet and inhibition of the p38 MAPK (mitogen-activated protein kinase)/NFAT5 (nuclear factor of activated T-cells 5) signaling axis in STIA. Further experiments indicated a decreased leukodiapedesis under LS conditions. In conclusion, dietary salt restriction ameliorates CIA and STIA, indicating a beneficial role of LS diet during both the immunization and effector phase of immune-mediated arthritides by predominantly modulating the humoral immunity and the activation status of myeloid lineage cells. Hence, salt restriction might represent a supportive dietary intervention not only to reduce cardiovascular risk, but also to improve human inflammatory joint diseases like rheumatoid arthritis.
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Affiliation(s)
- Bettina Sehnert
- Department of Rheumatology and Clinical Immunology, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Sandy Pohle
- Department of Medicine 3, Friedrich-Alexander-University of Erlangen-Nuremberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Cornelia Heuberger
- Department of Rheumatology and Clinical Immunology, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Rita Rzepka
- Department of Rheumatology and Clinical Immunology, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Maximilian Seidl
- Institute for Surgical Pathology, Department of Pathology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Institute of Pathology, Heinrich-Heine University and University Hospital of Düsseldorf, Düsseldorf, Germany
| | - Falk Nimmerjahn
- Institute of Genetics, Department of Biology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Nina Chevalier
- Department of Rheumatology and Clinical Immunology, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jens Titze
- Interdisciplinary Center for Clinical Research and Department of Nephrology and Hypertension, Nikolaus-Fiebiger Center for Molecular Medicine, Friedrich-Alexander-University, Erlangen, Germany
- Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore, Singapore
| | - Reinhard E. Voll
- Department of Rheumatology and Clinical Immunology, Medical Center–University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Center for Chronic Immunodeficiency (CCI) Freiburg, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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Kremsreiter SM, Kroell ASH, Weinberger K, Boehm H. Glycan-Lectin Interactions in Cancer and Viral Infections and How to Disrupt Them. Int J Mol Sci 2021; 22:10577. [PMID: 34638920 PMCID: PMC8508825 DOI: 10.3390/ijms221910577] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 02/07/2023] Open
Abstract
Glycan-lectin interactions play an essential role in different cellular processes. One of their main functions is involvement in the immune response to pathogens or inflammation. However, cancer cells and viruses have adapted to avail themselves of these interactions. By displaying specific glycosylation structures, they are able to bind to lectins, thus promoting pathogenesis. While glycan-lectin interactions promote tumor progression, metastasis, and/or chemoresistance in cancer, in viral infections they are important for viral entry, release, and/or immune escape. For several years now, a growing number of investigations have been devoted to clarifying the role of glycan-lectin interactions in cancer and viral infections. Various overviews have already summarized and highlighted their findings. In this review, we consider the interactions of the lectins MGL, DC-SIGN, selectins, and galectins in both cancer and viral infections together. A possible transfer of ways to target and disrupt them might lead to new therapeutic approaches in different pathological backgrounds.
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Affiliation(s)
- Stefanie Maria Kremsreiter
- Institute for Pharmacy and Molecular Biotechnology (IPMB), Ruprecht Karls University Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany; (S.M.K.); (A.-S.H.K.); (K.W.)
| | - Ann-Sophie Helene Kroell
- Institute for Pharmacy and Molecular Biotechnology (IPMB), Ruprecht Karls University Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany; (S.M.K.); (A.-S.H.K.); (K.W.)
| | - Katharina Weinberger
- Institute for Pharmacy and Molecular Biotechnology (IPMB), Ruprecht Karls University Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany; (S.M.K.); (A.-S.H.K.); (K.W.)
| | - Heike Boehm
- Max-Planck-Institute for Medical Research, Jahnstr. 29, 69120 Heidelberg, Germany
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Ezetimibe Improves Rosuvastatin Effects on Inflammation and Vascular Endothelial Function in Acute Coronary Syndrome Patients Undergoing PCI. J Interv Cardiol 2021; 2021:2995602. [PMID: 34566523 PMCID: PMC8443370 DOI: 10.1155/2021/2995602] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/26/2021] [Accepted: 08/18/2021] [Indexed: 02/02/2023] Open
Abstract
Background Little is known of the acute effects of ezetimibe in patients with acute coronary syndrome (ACS) undergoing PCI. We investigated whether ezetimibe improves inflammation and vascular endothelial function in patients with ACS undergoing PCI. Methods We randomized 171 patients with ACS undergoing PCI to receive ezetimibe 10 mg/day plus rosuvastatin 20 mg/day (combination group, n = 81) versus rosuvastatin 20 mg/day (rosuvastatin group, n = 90). Lipid profile, type II secretory phospholipase A2 (sPLA2-IIa), interleukin-1β (IL-1β), vascular cell adhesion molecule-1 (VCAM-1), and intercellular cell adhesion molecule-1 (ICAM-1) were measured at baseline and after 7 days. Three months after PCI, clinical outcomes were examined. Result The levels of sPLA2-IIa and IL-1β reduced significantly in both groups, but more when ezetimibe and rosuvastatin were coadministered (sPLA2-IIa: 6.16 ± 2.67 vs. 7.42 ± 3.53 ng/ml, p=0.01; IL-1β: 37.39 ± 26.25 vs. 48.98 ± 32.26 pg/ml, p=0.01). A significant rise of VCAM-1 and ICAM-1 was observed on day 7 after PCI in the both groups, but was less in the combination group (VCAM-1: 918.28 ± 235.31 vs. 988.54 ± 194.41 ng/ml, p=0.03; ICAM-1: 213.01 ± 100.15 vs. 246.88 ± 105.71 ng/ml, p=0.03). Patients in the combination versus rosuvastatin group appeared to suffer from less major adverse events. Periprocedural therapy of ezetimibe improves rosuvastatin effects on proinflammatory responses and endothelial function associated with ACS patients undergoing PCI. This trial is registered with https://clinicaltrials.gov/ct2/show/ChiCTR-IPR-17012219 (Chinese Clinical Trial Registry, http://www.chictr.org.cn on 02/08/2017).
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Cariello M, Piccinin E, Zerlotin R, Piglionica M, Peres C, Divella C, Signorile A, Villani G, Ingravallo G, Sabbà C, Moschetta A. Adhesion of Platelets to Colon Cancer Cells Is Necessary to Promote Tumor Development in Xenograft, Genetic and Inflammation Models. Cancers (Basel) 2021; 13:cancers13164243. [PMID: 34439397 PMCID: PMC8394609 DOI: 10.3390/cancers13164243] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Platelets are small, anucleate, metabolically active cells and they represent an important linkage between tissue damage and inflammatory response. Several studies focused on the central role of platelets in inflammation and tumor development through their direct interaction with other cell types. Mice lacking the vascular adhesion molecules P-selectin exhibited a reduction in tumor metastases. We demonstrated that P-selectin-ablated platelets reduced tumor growth in a xenograft adenocarcinoma model. Furthermore, the lack of P-selectin decreased colon cancer progression in genetic mouse models and in chemically-induced colitis colorectal carcinogenesis. Our results suggest that platelets-cancer cells crosstalk via P-selectin is fundamental for tumor development. Abstract Platelets represent the linkage between tissue damage and inflammatory response with a putative role in tumorigenesis. Given the importance of the microenvironment in colon cancer development, we elucidated the eventual role of platelets-cancer cells crosstalk in in vivo colon cancer models. To evaluate the involvement of platelets in intestinal tumorigenesis, we first analyzed if the ablation of β-integrin P-selectin that drives platelets-cell adhesion, would contribute to platelets-colon cancer cell interaction and drive cancer progression. In a xenograft tumor model, we observed that when tumors are inoculated with platelets, the ablation of P-selectin significantly reduced tumor growth compared to control platelets. Furthermore, in genetic models, as well as in chronic colitis-associated colorectal carcinogenesis, P-selectin ablated mice displayed a significant reduction in tumor number and size compared to control mice. Taken together, our data highlights the importance of platelets in the tumor microenvironment for intestinal tumorigenesis. These results support the hypothesis that a strategy aimed to inhibit platelets adhesion to tumor cells are able to block tumor growth and could represent a novel therapeutic approach to colon cancer treatment.
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Affiliation(s)
- Marica Cariello
- Department of Interdisciplinary Medicine, “Aldo Moro” University of Bari, 70124 Bari, Italy; (M.C.); (E.P.); (R.Z.); (M.P.); (C.S.)
| | - Elena Piccinin
- Department of Interdisciplinary Medicine, “Aldo Moro” University of Bari, 70124 Bari, Italy; (M.C.); (E.P.); (R.Z.); (M.P.); (C.S.)
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, “Aldo Moro” University of Bari, 70124 Bari, Italy; (A.S.); (G.V.)
| | - Roberta Zerlotin
- Department of Interdisciplinary Medicine, “Aldo Moro” University of Bari, 70124 Bari, Italy; (M.C.); (E.P.); (R.Z.); (M.P.); (C.S.)
| | - Marilidia Piglionica
- Department of Interdisciplinary Medicine, “Aldo Moro” University of Bari, 70124 Bari, Italy; (M.C.); (E.P.); (R.Z.); (M.P.); (C.S.)
| | - Claudia Peres
- INBB, National Institute for Biostructures and Biosystems, 00136 Rome, Italy;
| | - Chiara Divella
- Nephrology, Dialysis, and Transplantation Unit, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, 71024 Bari, Italy;
| | - Anna Signorile
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, “Aldo Moro” University of Bari, 70124 Bari, Italy; (A.S.); (G.V.)
| | - Gaetano Villani
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, “Aldo Moro” University of Bari, 70124 Bari, Italy; (A.S.); (G.V.)
| | - Giuseppe Ingravallo
- Pathology Section, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, 70124 Bari, Italy;
| | - Carlo Sabbà
- Department of Interdisciplinary Medicine, “Aldo Moro” University of Bari, 70124 Bari, Italy; (M.C.); (E.P.); (R.Z.); (M.P.); (C.S.)
| | - Antonio Moschetta
- Department of Interdisciplinary Medicine, “Aldo Moro” University of Bari, 70124 Bari, Italy; (M.C.); (E.P.); (R.Z.); (M.P.); (C.S.)
- INBB, National Institute for Biostructures and Biosystems, 00136 Rome, Italy;
- Correspondence: ; Tel.: +39-0805593262; Fax: +39-0805478126
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Rodrigues RM, He Y, Hwang S, Bertola A, Mackowiak B, Ahmed YA, Seo W, Ma J, Wang X, Park SH, Guan Y, Fu Y, Vanhaecke T, Feng D, Gao B. E-Selectin-Dependent Inflammation and Lipolysis in Adipose Tissue Exacerbate Steatosis-to-NASH Progression via S100A8/9. Cell Mol Gastroenterol Hepatol 2021; 13:151-171. [PMID: 34390865 PMCID: PMC8593619 DOI: 10.1016/j.jcmgh.2021.08.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/04/2021] [Accepted: 08/04/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Nonalcoholic steatohepatitis (NASH) is a leading cause of chronic liver disease, characterized by steatosis and hallmark liver neutrophil infiltration. NASH also is associated with adipose tissue inflammation, but the role of adipose tissue inflammation in NASH pathogenesis remains obscure. The aim of this study was to investigate the interplay between neutrophil recruitment in adipose tissue and the progression of NASH. METHODS A mouse model of NASH was obtained by high-fat diet (HFD) feeding plus adenovirus-Cxcl1 overexpression (HFD+AdCxcl1). Genetic deletion of E-selectin (Sele) and treatment with an S100A9 inhibitor (Paquinimod) were investigated using this model. RESULTS By analyzing transcriptomic data sets of adipose tissue from NASH patients, we found that E-selectin, a key adhesion molecule for neutrophils, is the highest up-regulated gene among neutrophil recruitment-related factors in adipose tissue of NASH patients compared with those in patients with simple steatosis. A marked up-regulation of Sele in adipose tissue also was observed in HFD+AdCxcl1 mice. The HFD+AdCxcl1-induced NASH phenotype was ameliorated in Sele knockout mice and was accompanied by reduced lipolysis and inflammation in adipose tissue, which resulted in decreased serum free fatty acids and proinflammatory adipokines. S100A8/A9, a major proinflammatory protein secreted by neutrophils, was highly increased in adipose tissue of HFD+AdCxcl1 mice. This increase was blunted in the Sele knockout mice. Therapeutically, treatment with the S100A9 inhibitor Paquinimod reduced lipolysis, inflammation, and adipokine production, ameliorating the NASH phenotype in mice. CONCLUSIONS E-selectin plays an important role in inducing neutrophil recruitment in adipose tissue, which subsequently promotes inflammation and lipolysis via the production of S100A8/A9, thereby exacerbating the steatosis-to-NASH progression. Targeting adipose tissue inflammation therefore may represent a potential novel therapy for treatment of NASH.
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Affiliation(s)
- Robim M. Rodrigues
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland,Department of In Vitro Toxicology and Dermato-Cosmetology, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Yong He
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Seonghwan Hwang
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Adeline Bertola
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Bryan Mackowiak
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Yeni Ait Ahmed
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Wonhyo Seo
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Jing Ma
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Xiaolin Wang
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Seol Hee Park
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Yukun Guan
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Yaojie Fu
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Tamara Vanhaecke
- Department of In Vitro Toxicology and Dermato-Cosmetology, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Dechun Feng
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland,Correspondence Address correspondence to: Bin Gao, MD, PhD, Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, 5625 Fishers Lane, Bethesda, Maryland 20892. fax: (301) 480-0257.
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Trypanosoma cruzi Exploits E- and P-Selectins to Migrate Across Endothelial Cells and Extracellular Matrix Proteins. Infect Immun 2021; 89:e0017821. [PMID: 34228487 DOI: 10.1128/iai.00178-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The Chagas disease parasite Trypanosoma cruzi must extravasate to home in on susceptible cells residing in most tissues. It remains unknown how T. cruzi undertakes this crucial step of its life cycle. We hypothesized that the pathogen exploits the endothelial cell programming leukocytes use to extravasate to sites of inflammation. Transendothelial migration (TEM) starts after inflammatory cytokines induce E-selectin expression and P-selectin translocation on endothelial cells (ECs), enabling recognition by leukocyte ligands that engender rolling cell adhesion. Here we show that T. cruzi upregulates E- and P-selectins in cardiac ECs to which it binds in a ligand-receptor fashion, whether under static or shear flow conditions. Glycoproteins isolated from T. cruzi (TcEx) specifically recognize P-selectin in a ligand-receptor interaction. As with leukocytes, binding of P-selectin to T. cruzi or TcEx requires sialic acid and tyrosine sulfate, which are pivotal for downstream migration across ECs and extracellular matrix proteins. Additionally, soluble selectins, which bind T. cruzi, block transendothelial migration dose-dependently, implying that the pathogen bears selectin-binding ligand(s) that start transmigration. Furthermore, function-blocking antibodies against E- and P-selectins, which act on endothelial cells and not T. cruzi, are exquisite in preventing TEM. Thus, our results show that selectins can function as mediators of T. cruzi transendothelial transmigration, suggesting a pathogenic mechanism that allows homing in of the parasite on targeted tissues. As selectin inhibitors are sought-after therapeutic targets for autoimmune diseases and cancer metastasis, they may similarly represent a novel strategy for Chagas disease therapy.
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Wang SS, Solar VD, Yu X, Antonopoulos A, Friedman AE, Agarwal K, Garg M, Ahmed SM, Addhya A, Nasirikenari M, Lau JT, Dell A, Haslam SM, Sampathkumar SG, Neelamegham S. Efficient inhibition of O-glycan biosynthesis using the hexosamine analog Ac 5GalNTGc. Cell Chem Biol 2021; 28:699-710.e5. [PMID: 33609441 DOI: 10.1016/j.chembiol.2021.01.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 12/20/2020] [Accepted: 01/21/2021] [Indexed: 11/18/2022]
Abstract
There is a critical need to develop small-molecule inhibitors of mucin-type O-linked glycosylation. The best-known reagent currently is benzyl-GalNAc, but it is effective only at millimolar concentrations. This article demonstrates that Ac5GalNTGc, a peracetylated C-2 sulfhydryl-substituted GalNAc, fulfills this unmet need. When added to cultured leukocytes, breast cells, and prostate cells, Ac5GalNTGc increased cell-surface VVA binding by ∼10-fold, indicating truncation of O-glycan biosynthesis. Cytometry, mass spectrometry, and western blot analysis of HL-60 promyelocytes demonstrated that 50-80 μM Ac5GalNTGc prevented elaboration of 30%-60% of the O-glycans beyond the Tn-antigen (GalNAcα1-Ser/Thr) stage. The effect of the compound on N-glycans and glycosphingolipids was small. Glycan inhibition induced by Ac5GalNTGc resulted in 50%-80% reduction in leukocyte sialyl-Lewis X expression and L-/P-selectin-mediated rolling under flow conditions. Ac5GalNTGc was pharmacologically active in mouse. It reduced neutrophil infiltration to sites of inflammation by ∼60%. Overall, Ac5GalNTGc may find diverse applications as a potent inhibitor of O-glycosylation.
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Affiliation(s)
- Shuen-Shiuan Wang
- Department of Chemical and Biological Engineering, State University of New York, 906 Furnas Hall, Buffalo, NY, USA
| | - Virginia Del Solar
- Department of Chemical and Biological Engineering, State University of New York, 906 Furnas Hall, Buffalo, NY, USA
| | - Xinheng Yu
- Department of Chemical and Biological Engineering, State University of New York, 906 Furnas Hall, Buffalo, NY, USA
| | | | - Alan E Friedman
- Department of Chemistry, State University of New York, Buffalo, NY, USA
| | - Kavita Agarwal
- Laboratory of Chemical Glycobiology, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Monika Garg
- Laboratory of Chemical Glycobiology, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Syed Meheboob Ahmed
- Laboratory of Chemical Glycobiology, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Ahana Addhya
- Laboratory of Chemical Glycobiology, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Mehrab Nasirikenari
- Department of Cellular and Molecular Biology, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Joseph T Lau
- Department of Cellular and Molecular Biology, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Anne Dell
- Department of Life Sciences, Imperial College London, London, UK
| | - Stuart M Haslam
- Department of Life Sciences, Imperial College London, London, UK
| | | | - Sriram Neelamegham
- Department of Chemical and Biological Engineering, State University of New York, 906 Furnas Hall, Buffalo, NY, USA; Department of Medicine, State University of New York, Buffalo, NY, USA.
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Osthoff G, Hugo A, Madende M, Schmidt L, Kobeni S, Deacon F. Milk Composition of Free-Ranging Impala ( Aepyceros melampus) and Tsessebe ( Damaliscus lunatus lunatus), and Comparison with Other African Bovidae. Animals (Basel) 2021; 11:516. [PMID: 33671145 PMCID: PMC7922303 DOI: 10.3390/ani11020516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/03/2021] [Accepted: 02/03/2021] [Indexed: 11/24/2022] Open
Abstract
The major nutrient and fatty acid composition of the milk of impala and tsessebe is reported and compared with other Bovidae and species. The proximate composition of impala milk was 5.56 ± 1.96% fat, 6.60 ± 0.51% protein, and 4.36 ± 0.94% lactose, and that of tsessebe milk was 8.44 ± 3.19%, 5.15 ± 0.49%, and 6.10 ± 3.85%, respectively. The high protein content of impala milk accounted for 42% of gross energy, which is typical for African Bovids that use a "hider" postnatal care system, compared to the 25% of the tsessebe, a "follower". Electrophoresis showed that the molecular size and surface charge of the tsessebe caseins resembled that of other Alcelaphinae members, while that of the impala resembled that of Hippotraginae. The milk composition of these two species was compared by statistical methods with 13 other species representing eight suborders, families, or subfamilies of African Artiodactyla. This showed that the tsessebe milk resembled that of four other species of the Alcelaphinae sub-family and that the milk of this sub-family differs from other Artiodactyla by its specific margins of nutrient contents and milk fat with a high content of medium-length fatty acids (C8-C12) above 17% of the total fatty acids.
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Affiliation(s)
- Gernot Osthoff
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein 9300, South Africa; (A.H.); (M.M.); (L.S.); (S.K.)
| | - Arnold Hugo
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein 9300, South Africa; (A.H.); (M.M.); (L.S.); (S.K.)
| | - Moses Madende
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein 9300, South Africa; (A.H.); (M.M.); (L.S.); (S.K.)
| | - Lauren Schmidt
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein 9300, South Africa; (A.H.); (M.M.); (L.S.); (S.K.)
| | - Sibusiso Kobeni
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein 9300, South Africa; (A.H.); (M.M.); (L.S.); (S.K.)
| | - Francois Deacon
- Department of Animal, Wildlife and Grassland Sciences, University of the Free State, Bloemfontein 9300, South Africa;
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Wang L, Tang C. Targeting Platelet in Atherosclerosis Plaque Formation: Current Knowledge and Future Perspectives. Int J Mol Sci 2020; 21:ijms21249760. [PMID: 33371312 PMCID: PMC7767086 DOI: 10.3390/ijms21249760] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/09/2020] [Accepted: 12/16/2020] [Indexed: 12/23/2022] Open
Abstract
Besides their role in hemostasis and thrombosis, it has become increasingly clear that platelets are also involved in many other pathological processes of the vascular system, such as atherosclerotic plaque formation. Atherosclerosis is a chronic vascular inflammatory disease, which preferentially develops at sites under disturbed blood flow with low speeds and chaotic directions. Hyperglycemia, hyperlipidemia, and hypertension are all risk factors for atherosclerosis. When the vascular microenvironment changes, platelets can respond quickly to interact with endothelial cells and leukocytes, participating in atherosclerosis. This review discusses the important roles of platelets in the plaque formation under pro-atherogenic factors. Specifically, we discussed the platelet behaviors under disturbed flow, hyperglycemia, and hyperlipidemia conditions. We also summarized the molecular mechanisms involved in vascular inflammation during atherogenesis based on platelet receptors and secretion of inflammatory factors. Finally, we highlighted the studies of platelet migration in atherogenesis. In general, we elaborated an atherogenic role of platelets and the aspects that should be further studied in the future.
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Affiliation(s)
- Lei Wang
- Cyrus Tang Hematology Center, Cyrus Tang Medical Institute, Soochow University, Suzhou 215123, China;
| | - Chaojun Tang
- Cyrus Tang Hematology Center, Cyrus Tang Medical Institute, Soochow University, Suzhou 215123, China;
- Collaborative Innovation Center of Hematology of Jiangsu Province, Soochow University, Suzhou 215123, China
- National Clinical Research Center for Hematologic Diseases, the First Affiliated Hospital of Soochow University, Suzhou 215123, China
- Correspondence: ; Tel.: +86-512-6588-0899
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García-Bernal D, García-Arranz M, García-Guillén AI, García-Hernández AM, Blanquer M, García-Olmo D, Sackstein R, Moraleda JM, Zapata AG. Exofucosylation of Adipose Mesenchymal Stromal Cells Alters Their Secretome Profile. Front Cell Dev Biol 2020; 8:584074. [PMID: 33324641 PMCID: PMC7726227 DOI: 10.3389/fcell.2020.584074] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/09/2020] [Indexed: 01/01/2023] Open
Abstract
Mesenchymal stromal cells (MSCs) constitute the cell type more frequently used in many regenerative medicine approaches due to their exclusive immunomodulatory properties, and they have been reported to mediate profound immunomodulatory effects in vivo. Nevertheless, MSCs do not express essential adhesion molecules actively involved in cell migration, a phenotypic feature that hampers their ability to home inflamed tissues following intravenous administration. In this study, we investigated whether modification by fucosylation of murine AdMSCs (mAdMSCs) creates Hematopoietic Cell E-/L-selectin Ligand, the E-selectin-binding CD44 glycoform. This cell surface glycan modification of CD44 has previously shown in preclinical studies to favor trafficking of mAdMSCs to inflamed or injured peripheral tissues. We analyzed the impact that exofucosylation could have in other innate phenotypic and functional properties of MSCs. Compared to unmodified counterparts, fucosylated mAdMSCs demonstrated higher in vitro migration, an altered secretome pattern, including increased expression and secretion of anti-inflammatory molecules, and a higher capacity to inhibit mitogen-stimulated splenocyte proliferation under standard culture conditions. Together, these findings indicate that exofucosylation could represent a suitable cell engineering strategy, not only to facilitate the in vivo MSC colonization of damaged tissues after systemic administration, but also to convert MSCs in a more potent immunomodulatory/anti-inflammatory cell therapy-based product for the treatment of a variety of autoimmune, inflammatory, and degenerative diseases.
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Affiliation(s)
- David García-Bernal
- Hematopoietic Transplant and Cellular Therapy Unit, Instituto Murciano de Investigación Biosanitaria Virgen de la Arrixaca, University of Murcia, Murcia, Spain.,Department of Internal Medicine, Medicine School, University of Murcia, Murcia, Spain
| | - Mariano García-Arranz
- Foundation Health Research Institute-Fundación Jiménez Díaz University Hospital, Madrid, Spain
| | - Ana I García-Guillén
- Hematopoietic Transplant and Cellular Therapy Unit, Instituto Murciano de Investigación Biosanitaria Virgen de la Arrixaca, University of Murcia, Murcia, Spain
| | - Ana M García-Hernández
- Hematopoietic Transplant and Cellular Therapy Unit, Instituto Murciano de Investigación Biosanitaria Virgen de la Arrixaca, University of Murcia, Murcia, Spain
| | - Miguel Blanquer
- Hematopoietic Transplant and Cellular Therapy Unit, Instituto Murciano de Investigación Biosanitaria Virgen de la Arrixaca, University of Murcia, Murcia, Spain.,Department of Internal Medicine, Medicine School, University of Murcia, Murcia, Spain
| | - Damián García-Olmo
- Foundation Health Research Institute-Fundación Jiménez Díaz University Hospital, Madrid, Spain
| | - Robert Sackstein
- Department of Translational Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, United States
| | - Jose M Moraleda
- Hematopoietic Transplant and Cellular Therapy Unit, Instituto Murciano de Investigación Biosanitaria Virgen de la Arrixaca, University of Murcia, Murcia, Spain.,Department of Internal Medicine, Medicine School, University of Murcia, Murcia, Spain
| | - Agustín G Zapata
- Department of Cell Biology, Faculty of Biology, Complutense University of Madrid, Madrid, Spain
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Wang X, Bie L, Fei J, Gao J. Insights into the Loop at the E-Selectin Binding Site: From Open to Close Conformation. J Chem Inf Model 2020; 60:5153-5161. [DOI: 10.1021/acs.jcim.0c00939] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xiaocong Wang
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Lihua Bie
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Junwen Fei
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Jun Gao
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, Hubei 430070, China
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Hassan AA, Artemenko M, Tang MK, Wong AS. Selectins: An Important Family of Glycan-Binding Cell Adhesion Molecules in Ovarian Cancer. Cancers (Basel) 2020; 12:cancers12082238. [PMID: 32785160 PMCID: PMC7463917 DOI: 10.3390/cancers12082238] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/07/2020] [Accepted: 08/07/2020] [Indexed: 12/12/2022] Open
Abstract
Ovarian cancer is the most lethal gynecological malignancy worldwide. Unlike most other tumor types that metastasize via the vasculature, ovarian cancer metastasizes predominantly via the transcoelomic route within the peritoneal cavity. As cancer metastasis accounts for the majority of deaths, there is an urge to better understand its determinants. In the peritoneal cavity, tumor-mesothelial adhesion is an important step for cancer dissemination. Selectins are glycan-binding molecules that facilitate early steps of this adhesion cascade by mediating heterotypic cell-cell interaction under hydrodynamic flow. Here, we review the function and regulation of selectins in peritoneal carcinomatosis of ovarian cancer, and highlight how dysregulation of selectin ligand biogenesis affects disease outcome. Further, we will introduce the latest tools in studying selectin-glycan interaction. Finally, an overview of potential therapeutic intervention points that may lead to the development of efficacious therapies for ovarian cancer is provided.
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Arctigenin attenuates platelet activation and clot retraction by regulation of thromboxane A 2 synthesis and cAMP pathway. Biomed Pharmacother 2020; 130:110535. [PMID: 32707441 DOI: 10.1016/j.biopha.2020.110535] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/08/2020] [Accepted: 07/11/2020] [Indexed: 11/22/2022] Open
Abstract
Pathophysiological reaction of platelets in the blood vessel is an indispensable part of thrombosis and cardiovascular disease, which is the most common cause of death in the world. In this study, we performed in vitro assays to evaluate antiplatelet activity of arctigenin in human platelets and attempted to identify the mechanism responsible for thromboxane A2 (TXA2) generation, integrin αIIbβ3 activation and cAMP pathway. Arctigenin exhibited obvious inhibitory effects on collagen-, thrombin-, and ADP-induced human platelet aggregation, granule secretion, TXA2 generation, integrin αIIbβ3 activation, and clot retraction. Additionally, we found that arctigenin attenuated PI3K/Akt/mTOR/GSK-3β and MAPK signaling pathways, and increased cAMP level. Accordingly, the findings support that arctigenin attenuates thrombotic events through the inhibition of platelet activation and platelet plug formation. Therefore, we suggest that arctigenin may have therapeutic potential as an antiplatelet and antithrombotic agent.
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Kulkarni R, Kale V. Physiological Cues Involved in the Regulation of Adhesion Mechanisms in Hematopoietic Stem Cell Fate Decision. Front Cell Dev Biol 2020; 8:611. [PMID: 32754597 PMCID: PMC7366553 DOI: 10.3389/fcell.2020.00611] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 06/19/2020] [Indexed: 12/16/2022] Open
Abstract
Hematopoietic stem cells (HSC) could have several fates in the body; viz. self-renewal, differentiation, migration, quiescence, and apoptosis. These fate decisions play a crucial role in maintaining homeostasis and critically depend on the interaction of the HSCs with their micro-environmental constituents. However, the physiological cues promoting these interactions in vivo have not been identified to a great extent. Intense research using various in vitro and in vivo models is going on in various laboratories to understand the mechanisms involved in these interactions, as understanding of these mechanistic would greatly help in improving clinical transplantations. However, though these elegant studies have identified the molecular interactions involved in the process, harnessing these interactions to the recipients' benefit would ultimately depend on manipulation of environmental cues initiating them in vivo: hence, these need to be identified at the earliest. HSCs reside in the bone marrow, which is a very complex tissue comprising of various types of stromal cells along with their secreted cytokines, extra-cellular matrix (ECM) molecules and extra-cellular vesicles (EVs). These components control the HSC fate decision through direct cell-cell interactions - mediated via various types of adhesion molecules -, cell-ECM interactions - mediated mostly via integrins -, or through soluble mediators like cytokines and EVs. This could be a very dynamic process involving multiple transient interactions acting concurrently or sequentially, and the adhesion molecules involved in various fate determining situations could be different. If the switch mechanisms governing these dynamic states in vivo are identified, they could be harnessed for the development of novel therapeutics. Here, in addition to reviewing the adhesion molecules involved in the regulation of HSCs, we also touch upon recent advances in our understanding of the physiological cues known to initiate specific adhesive interactions of HSCs with the marrow stromal cells or ECM molecules and EVs secreted by them.
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Affiliation(s)
- Rohan Kulkarni
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
| | - Vaijayanti Kale
- Symbiosis Centre for Stem Cell Research, Symbiosis International University, Pune, India
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Cell-Type Targeted NF-kappaB Inhibition for the Treatment of Inflammatory Diseases. Cells 2020; 9:cells9071627. [PMID: 32640727 PMCID: PMC7407293 DOI: 10.3390/cells9071627] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 12/29/2022] Open
Abstract
Deregulated NF-k activation is not only involved in cancer but also contributes to the pathogenesis of chronic inflammatory diseases like rheumatoid arthritis (RA) and multiple sclerosis (MS). Ideally, therapeutic NF-KappaB inhibition should only take place in those cell types that are involved in disease pathogenesis to maintain physiological cell functions in all other cells. In contrast, unselective NF-kappaB inhibition in all cells results in multiple adverse effects, a major hindrance in drug development. Hitherto, various substances exist to inhibit different steps of NF-kappaB signaling. However, powerful tools for cell-type specific NF-kappaB inhibition are not yet established. Here, we review the role of NF-kappaB in inflammatory diseases, current strategies for drug delivery and NF-kappaB inhibition and point out the “sneaking ligand” approach. Sneaking ligand fusion proteins (SLFPs) are recombinant proteins with modular architecture consisting of three domains. The prototype SLC1 binds specifically to the activated endothelium and blocks canonical NF-kappaB activation. In vivo, SLC1 attenuated clinical and histological signs of experimental arthritides. The SLFP architecture allows an easy exchange of binding and effector domains and represents an attractive approach to study disease-relevant biological targets in a broad range of diseases. In vivo, SLFP treatment might increase therapeutic efficacy while minimizing adverse effects.
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Abidi AH, Alghamdi SS, Dabbous MK, Tipton DA, Mustafa SM, Moore BM. Cannabinoid type-2 receptor agonist, inverse agonist, and anandamide regulation of inflammatory responses in IL-1β stimulated primary human periodontal ligament fibroblasts. J Periodontal Res 2020; 55:762-783. [PMID: 32562275 DOI: 10.1111/jre.12765] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 04/08/2020] [Accepted: 04/24/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The aim of this study is to understand the role of cannabinoid type 2 receptor (CB2R) during periodontal inflammation and to identify anti-inflammatory agents for the development of drugs to treat periodontitis (PD). BACKGROUND Cannabinoid type 2 receptor is found in periodontal tissue at sites of inflammation/infection. Our previous study demonstrated anti-inflammatory responses in human periodontal ligament fibroblasts (hPDLFs) via CB2R ligands. METHODS Anandamide (AEA), HU-308 (agonist), and SMM-189 (inverse agonist) were tested for effects on IL-1β-stimulated cytokines, chemokines, and angiogenic and vascular markers expressed by hPDLFs using Mesoscale Discovery V-Plex Kits. Signal transduction pathways (p-c-Jun, p-ERK, p-p-38, p-JNK, p-CREB, and p-NF-kB) were investigated using Cisbio HTRF kits. ACTOne and Tango™ -BLA functional assays were used to measure cyclic AMP (cAMP) and β-arrestin activity. RESULTS IL-1β stimulated hPDLF production of 18/39 analytes, which were downregulated by the CB2R agonist and the inverse agonist. AEA exhibited pro-inflammatory and anti-inflammatory effects. IL-1β increased phosphoproteins within the first hour except p-JNK. CB2R ligands attenuated p-p38 and p-NFĸB, but a late rise in p-38 was seen with HU-308. As p-ERK levels declined, a significant increase in p-ERK was observed later in the time course by synthetic CB2R ligands. P-JNK was significantly affected by SMM-189 only, while p-CREB was elevated significantly by CB2R ligands at 180 minutes. HU-308 affected both cAMP and β-arrestin pathway. SMM-189 only stimulated cAMP. CONCLUSION The findings that CB2R agonist and inverse agonist may potentially regulate inflammation suggest that development of CB2R therapeutics could improve on current treatments for PD and other oral inflammatory pathologies.
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Affiliation(s)
- Ammaar H Abidi
- College of Dentistry, The University of Tennessee Health Science Center, Memphis, TN, USA.,Department of Bioscience Research, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Sahar S Alghamdi
- Department of Pharmaceutical Sciences, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Mustafa Kh Dabbous
- College of Dentistry, The University of Tennessee Health Science Center, Memphis, TN, USA.,Department of Bioscience Research, The University of Tennessee Health Science Center, Memphis, TN, USA.,College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA.,Department of Microbiology, Immunology and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - David A Tipton
- College of Dentistry, The University of Tennessee Health Science Center, Memphis, TN, USA.,Department of Bioscience Research, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Suni M Mustafa
- Department of Pharmaceutical Sciences, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Bob M Moore
- Department of Pharmaceutical Sciences, The University of Tennessee Health Science Center, Memphis, TN, USA
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Tvaroška I, Selvaraj C, Koča J. Selectins-The Two Dr. Jekyll and Mr. Hyde Faces of Adhesion Molecules-A Review. Molecules 2020; 25:molecules25122835. [PMID: 32575485 PMCID: PMC7355470 DOI: 10.3390/molecules25122835] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/27/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023] Open
Abstract
Selectins belong to a group of adhesion molecules that fulfill an essential role in immune and inflammatory responses and tissue healing. Selectins are glycoproteins that decode the information carried by glycan structures, and non-covalent interactions of selectins with these glycan structures mediate biological processes. The sialylated and fucosylated tetrasaccharide sLex is an essential glycan recognized by selectins. Several glycosyltransferases are responsible for the biosynthesis of the sLex tetrasaccharide. Selectins are involved in a sequence of interactions of circulated leukocytes with endothelial cells in the blood called the adhesion cascade. Recently, it has become evident that cancer cells utilize a similar adhesion cascade to promote metastases. However, like Dr. Jekyll and Mr. Hyde’s two faces, selectins also contribute to tissue destruction during some infections and inflammatory diseases. The most prominent function of selectins is associated with the initial stage of the leukocyte adhesion cascade, in which selectin binding enables tethering and rolling. The first adhesive event occurs through specific non-covalent interactions between selectins and their ligands, with glycans functioning as an interface between leukocytes or cancer cells and the endothelium. Targeting these interactions remains a principal strategy aimed at developing new therapies for the treatment of immune and inflammatory disorders and cancer. In this review, we will survey the significant contributions to and the current status of the understanding of the structure of selectins and the role of selectins in various biological processes. The potential of selectins and their ligands as therapeutic targets in chronic and acute inflammatory diseases and cancer will also be discussed. We will emphasize the structural characteristic of selectins and the catalytic mechanisms of glycosyltransferases involved in the biosynthesis of glycan recognition determinants. Furthermore, recent achievements in the synthesis of selectin inhibitors will be reviewed with a focus on the various strategies used for the development of glycosyltransferase inhibitors, including substrate analog inhibitors and transition state analog inhibitors, which are based on knowledge of the catalytic mechanism.
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Affiliation(s)
- Igor Tvaroška
- Central European Institute of Technology (CEITEC), Masaryk University, 62500 Brno, Czech Republic
- Institute of Chemistry, Slovak Academy of Sciences, 84538 Bratislava, Slovak Republic
- Correspondence: (I.T.); (J.K.); Tel.: +421-948-535-601 (I.T.); +420-731-682-606 (J.K.)
| | - Chandrabose Selvaraj
- Central European Institute of Technology (CEITEC), Masaryk University, 62500 Brno, Czech Republic
| | - Jaroslav Koča
- Central European Institute of Technology (CEITEC), Masaryk University, 62500 Brno, Czech Republic
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
- Correspondence: (I.T.); (J.K.); Tel.: +421-948-535-601 (I.T.); +420-731-682-606 (J.K.)
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Lee BK, Kim MH, Lee SY, Son SJ, Hong CH, Jung YS. Downregulated Platelet miR-1233-5p in Patients with Alzheimer's Pathologic Change with Mild Cognitive Impairment is Associated with Aβ-Induced Platelet Activation via P-Selectin. J Clin Med 2020; 9:jcm9061642. [PMID: 32485903 PMCID: PMC7357133 DOI: 10.3390/jcm9061642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) have been proposed as a promising biomarker for various diseases including Alzheimer’s disease (AD). More attention has recently been focused on the diagnosis and treatment at earlier stage of mild cognitive impairment (MCI) for preventing its progression to AD. To identify potential pathologic markers for Aβ(+)MCI (Alzheimer’s pathologic change with MCI), we investigated miRNA expression profiles in the platelets from patients with Aβ(+)MCI, in comparison with those from Aβ(−)MCI (Non-Alzheimer’s pathologic change with MCI) and CNI (cognitively normal individuals). We found that let-7i-5p, miR-125a, miR-1233-5p, and miR-6787-5p were significantly downregulated, while miR-6880-5p expression was upregulated. Of these, only miR-1233-5p was significantly downregulated by Aβ treatment in both human platelets and their precursor megakaryocytes (MEG-01 cells). We explored the role of miRNAs by using miRNA mimics or inhibitors, and found that the diminished level of miR-1233-5p was associated with Aβ-induced increase in the expression of P-selectin and cell adhesion to fibronectin. Our results further indicated that Aβ-induced increase in platelet/MEG adhesion to fibronectin is likely mediated via P-selectin. In conclusion, this study suggests the downregulation of platelet-derived miR-1233-5p as a pathologic marker for Aβ(+)MCI.
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Affiliation(s)
- Bo Kyung Lee
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (B.K.L.); or (M.H.K.)
| | - Min Hee Kim
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (B.K.L.); or (M.H.K.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
| | - Sang Yoon Lee
- Department of Biomedical Sciences, School of Medicine, Ajou University, Suwon 16499, Korea;
| | - Sang Joon Son
- Department of Psychiatry, School of Medicine, Ajou University, Suwon 16499, Korea;
| | - Chang Hyung Hong
- Department of Psychiatry, School of Medicine, Ajou University, Suwon 16499, Korea;
- Correspondence: (C.H.H.); (Y.-S.J.); Tel.: +82-31-219-3444 (C.H.H.); +82-31-219-5185 (Y.-S.J.)
| | - Yi-Sook Jung
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (B.K.L.); or (M.H.K.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
- Correspondence: (C.H.H.); (Y.-S.J.); Tel.: +82-31-219-3444 (C.H.H.); +82-31-219-5185 (Y.-S.J.)
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Safarova Y, Umbayev B, Hortelano G, Askarova S. Mesenchymal stem cells modifications for enhanced bone targeting and bone regeneration. Regen Med 2020; 15:1579-1594. [PMID: 32297546 DOI: 10.2217/rme-2019-0081] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In pathological bone conditions (e.g., osteoporotic fractures or critical size bone defects), increasing the pool of osteoblast progenitor cells is a promising therapeutic approach to facilitate bone healing. Since mesenchymal stem cells (MSCs) give rise to the osteogenic lineage, a number of clinical trials investigated the potential of MSCs transplantation for bone regeneration. However, the engraftment of transplanted cells is often hindered by insufficient oxygen and nutrients supply and the tendency of MSCs to home to different sites of the body. In this review, we discuss various approaches of MSCs transplantation for bone regeneration including scaffold and hydrogel constructs, genetic modifications and surface engineering of the cell membrane aimed to improve homing and increase cell viability, proliferation and differentiation.
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Affiliation(s)
- Yuliya Safarova
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan.,School of Engineering & Digital Sciences, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Bauyrzhan Umbayev
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Gonzalo Hortelano
- School of Sciences & Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Sholpan Askarova
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan
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Zhang G, Iwase H, Wang L, Yamamoto T, Jagdale A, Ayares D, Li Y, Cooper DKC, Hara H. Is interleukin-6 receptor blockade (tocilizumab) beneficial or detrimental to pig-to-baboon organ xenotransplantation? Am J Transplant 2020; 20:999-1013. [PMID: 31733178 DOI: 10.1111/ajt.15712] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 10/08/2019] [Accepted: 10/29/2019] [Indexed: 01/25/2023]
Abstract
The interleukin (IL)-6/IL-6 receptor-α (IL-6Rα)/signal transduction and activation of the transcription 3 (STAT3) pathway plays an important role in inflammation. Anti-human IL-6Rα blockade by tocilizumab (TCZ) has been used in pig-to-baboon organ xenotransplant models, but whether it is beneficial remains uncertain. After xenotransplant, there were significant increases in both baboon and pig IL-6 in the baboon serum, especially in baboons that received TCZ before xenotransplant. In vitro observations demonstrated that human, baboon, and pig IL-6 can activate the IL-6/IL-6Rα/STAT3 pathway in human, baboon, and pig cells, respectively. Activation of the IL-6/IL-6Rα/STAT3 pathway was blocked by TCZ in human and baboon cells but not in pig cells (ie, pig IL-6R). Siltuximab (human IL-6 inhibitor) bound to both human and baboon, but not pig, IL-6 and suppressed activation of the IL-6/IL-6Rα/STAT3 pathway. These results indicate that TCZ and siltuximab do not cross-react with pig IL-6R and pig IL-6, respectively. Rapamycin partially inhibited human, baboon, and pig IL-6/IL-6Rα/STAT3 pathways and suppressed inflammatory gene expression. TCZ treatment increased serum IL-6 because it could no longer bind to baboon IL-6Rα. We suggest that increased serum IL-6 may be detrimental to the pig xenograft because it is likely to bind to pig IL-6R, resulting in activation of pig cells.
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Affiliation(s)
- Guoqiang Zhang
- Department of General Surgery, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China.,Xenotransplantation Program, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA.,Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Hayato Iwase
- Xenotransplantation Program, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Liaoran Wang
- Xenotransplantation Program, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Takayuki Yamamoto
- Xenotransplantation Program, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Abhijit Jagdale
- Xenotransplantation Program, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Yong Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - David K C Cooper
- Xenotransplantation Program, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Hidetaka Hara
- Xenotransplantation Program, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Jeong J, Choi J. Development of AOP relevant to microplastics based on toxicity mechanisms of chemical additives using ToxCast™ and deep learning models combined approach. ENVIRONMENT INTERNATIONAL 2020; 137:105557. [PMID: 32078872 DOI: 10.1016/j.envint.2020.105557] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/21/2020] [Accepted: 02/05/2020] [Indexed: 06/10/2023]
Abstract
Various additives are used in plastic products to improve the properties and the durability of the plastics. Their possible elution from the plastics when plastics are fragmented into micro- and nano-size in the environment is suspected to one of the major contributors to environmental and human toxicity of microplastics. In this context, to better understand the hazardous effect of microplastics, the toxicity of chemical additives was investigated. Fifty most common chemicals presented in plastics were selected as target additives. Their toxicity was systematically identified using apical and molecular toxicity databases, such as ChemIDplus and ToxCast™. Among the vast ToxCast assays, those having intended gene targets were selected for identification of the mechanism of toxicity of plastic additives. Deep learning artificial neural network models were further developed based on the ToxCast assays for the chemicals not tested in the ToxCast program. Using both the ToxCast database and deep learning models, active chemicals on each ToxCast assays were identified. Through correlation analysis between molecular targets from ToxCast and mammalian toxicity results from ChemIDplus, we identified the fifteen most relevant mechanisms of toxicity for the understanding mechanism of toxicity of plastic additives. They are neurotoxicity, inflammation, lipid metabolism, and cancer pathways. Based on these, along with, previously conducted systemic review on the mechanism of toxicity of microplastics, here we have proposed potential adverse outcome pathways (AOPs) relevant to microplastics pollution. This study also suggests in vivo and in vitro toxicity database and deep learning model combined approach is appropriate to provide insight into the toxicity mechanism of the broad range of environmental chemicals, such as plastic additives.
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Affiliation(s)
- Jaeseong Jeong
- School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 02504, Republic of Korea
| | - Jinhee Choi
- School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 02504, Republic of Korea.
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