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Vogl DP, Mateos B, Migotti M, Felkl M, Conibear AC, Konrat R, Becker CFW. Semisynthesis of segmentally isotope-labeled and site-specifically palmitoylated CD44 cytoplasmic tail. Bioorg Med Chem 2024; 100:117617. [PMID: 38306881 DOI: 10.1016/j.bmc.2024.117617] [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: 11/30/2023] [Revised: 01/19/2024] [Accepted: 01/26/2024] [Indexed: 02/04/2024]
Abstract
CD44, a ubiquitously expressed transmembrane receptor, plays a crucial role in cell growth, migration, and tumor progression. Dimerization of CD44 is a key event in signal transduction and has emerged as a potential target for anti-tumor therapies. Palmitoylation, a posttranslational modification, disrupts CD44 dimerization and promotes CD44 accumulation in ordered membrane domains. However, the effects of palmitoylation on the structure and dynamics of CD44 at atomic resolution remain poorly understood. Here, we present a semisynthetic approach combining solid-phase peptide synthesis, recombinant expression, and native chemical ligation to investigate the impact of palmitoylation on the cytoplasmic domain (residues 669-742) of CD44 (CD44ct) by NMR spectroscopy. A segmentally isotope-labeled and site-specifically palmitoylated CD44 variant enabled NMR studies, which revealed chemical shift perturbations and indicated local and long-range conformational changes induced by palmitoylation. The long-range effects suggest altered intramolecular interactions and potential modulation of membrane association patterns. Semisynthetic, palmitoylated CD44ct serves as the basis for studying CD44 clustering, conformational changes, and localization within lipid rafts, and could be used to investigate its role as a tumor suppressor and to explore its therapeutic potential.
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Affiliation(s)
- Dominik P Vogl
- University of Vienna, Faculty of Chemistry, Institute of Biological Chemistry, Währinger Str. 38, 1090 Vienna, Austria; University of Vienna, Vienna Doctoral School in Chemistry (DoSChem), Währinger Str. 42, 1090 Vienna, Austria
| | - Borja Mateos
- Max Perutz Laboratories, Vienna Biocenter Campus 5, 1030 Vienna, Austria
| | - Mario Migotti
- Max Perutz Laboratories, Vienna Biocenter Campus 5, 1030 Vienna, Austria; Vienna BioCenter PhD Program, Doctoral School of the University of Vienna and Medical University of Vienna, A-1030 Vienna, Austria
| | - Manuel Felkl
- University of Vienna, Faculty of Chemistry, Institute of Biological Chemistry, Währinger Str. 38, 1090 Vienna, Austria
| | - Anne C Conibear
- TU Wien, Institute of Applied Synthetic Chemistry, Getreidemarkt 9, 1060 Vienna, Austria
| | - Robert Konrat
- Max Perutz Laboratories, Vienna Biocenter Campus 5, 1030 Vienna, Austria
| | - Christian F W Becker
- University of Vienna, Vienna Doctoral School in Chemistry (DoSChem), Währinger Str. 42, 1090 Vienna, Austria.
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2
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Skandalis SS. CD44 Intracellular Domain: A Long Tale of a Short Tail. Cancers (Basel) 2023; 15:5041. [PMID: 37894408 PMCID: PMC10605500 DOI: 10.3390/cancers15205041] [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: 09/09/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
CD44 is a single-chain transmembrane receptor that exists in multiple forms due to alternative mRNA splicing and post-translational modifications. CD44 is the main cell surface receptor of hyaluronan as well as other extracellular matrix molecules, cytokines, and growth factors that play important roles in physiological processes (such as hematopoiesis and lymphocyte homing) and the progression of various diseases, the predominant one being cancer. Currently, CD44 is an established cancer stem cell marker in several tumors, implying a central functional role in tumor biology. The present review aims to highlight the contribution of the CD44 short cytoplasmic tail, which is devoid of any enzymatic activity, in the extraordinary functional diversity of the receptor. The interactions of CD44 with cytoskeletal proteins through specific structural motifs within its intracellular domain drives cytoskeleton rearrangements and affects the distribution of organelles and transport of molecules. Moreover, the CD44 intracellular domain specifically interacts with various cytoplasmic effectors regulating cell-trafficking machinery, signal transduction pathways, the transcriptome, and vital cell metabolic pathways. Understanding the cell type- and context-specificity of these interactions may unravel the high complexity of CD44 functions and lead to novel improved therapeutic interventions.
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Affiliation(s)
- Spyros S Skandalis
- Biochemistry, Biochemical Analysis & Matrix Pathobiology Res. Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, 26504 Patras, Greece
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3
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Ren M, Zhao L, Ma Z, An H, Marrink SJ, Sun F. Molecular basis of PIP2-dependent conformational switching of phosphorylated CD44 in binding FERM. Biophys J 2023; 122:2675-2685. [PMID: 37218130 PMCID: PMC10397572 DOI: 10.1016/j.bpj.2023.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 05/07/2023] [Accepted: 05/18/2023] [Indexed: 05/24/2023] Open
Abstract
Association of the cellular adhesive protein CD44 and the N-terminal (FERM) domain of cytoskeleton adaptors is critical for cell proliferation, migration, and signaling. Phosphorylation of the cytoplasmic domain (CTD) of CD44 acts as an important regulator of the protein association, but the structural transformation and dynamics mechanism remain enigmatic. In this study, extensive coarse-grained simulations were employed to explore the molecular details in the formation of CD44-FERM complex under S291 and S325 phosphorylation, a modification path known to exert reciprocal effects on the protein association. We find that phosphorylation of S291 inhibits complexation by causing the CTD of CD44 to adopt a more closed structure. In contrast, S325 phosphorylation liberates the CD44-CTD from the membrane surface and promotes the linkage with FERM. The phosphorylation-driven transformation is found to occur in a PIP2-dependent manner, with PIP2 effecting the relative stability of the closed and open conformation, and a replacement of PIP2 by POPS greatly abrogates this effect. The revealed interdependent regulation mechanism by phosphorylation and PIP2 in the association of CD44 and FERM further strengthens our understanding of the molecular basis of cellular signaling and migration.
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Affiliation(s)
- Meina Ren
- Key Laboratory of Molecular Biophysics, Hebei Province, Institute of Biophysics, School of Health Science & Biomedical Engineering, Hebei University of Technology, Tianjin, China
| | - Lina Zhao
- Key Laboratory of Molecular Biophysics, Hebei Province, Institute of Biophysics, School of Health Science & Biomedical Engineering, Hebei University of Technology, Tianjin, China
| | - Ziyi Ma
- Key Laboratory of Molecular Biophysics, Hebei Province, Institute of Biophysics, School of Health Science & Biomedical Engineering, Hebei University of Technology, Tianjin, China
| | - Hailong An
- Key Laboratory of Molecular Biophysics, Hebei Province, Institute of Biophysics, School of Health Science & Biomedical Engineering, Hebei University of Technology, Tianjin, China.
| | - Siewert Jan Marrink
- Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, the Netherlands.
| | - Fude Sun
- Key Laboratory of Molecular Biophysics, Hebei Province, Institute of Biophysics, School of Health Science & Biomedical Engineering, Hebei University of Technology, Tianjin, China.
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Tabrizi MEA, Gupta JK, Gross SR. Ezrin and Its Phosphorylated Thr567 Form Are Key Regulators of Human Extravillous Trophoblast Motility and Invasion. Cells 2023; 12:cells12050711. [PMID: 36899847 PMCID: PMC10000480 DOI: 10.3390/cells12050711] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 02/27/2023] Open
Abstract
The protein ezrin has been shown to enhance cancer cell motility and invasion leading to malignant behaviours in solid tumours, but a similar regulatory function in the early physiological reproduction state is, however, much less clear. We speculated that ezrin may play a key role in promoting first-trimester extravillous trophoblast (EVT) migration/invasion. Ezrin, as well as its Thr567 phosphorylation, were found in all trophoblasts studied, whether primary cells or lines. Interestingly, the proteins were seen in a distinct cellular localisation in long, extended protrusions in specific regions of cells. Loss-of-function experiments were carried out in EVT HTR8/SVneo and Swan71, as well as primary cells, using either ezrin siRNAs or the phosphorylation Thr567 inhibitor NSC668394, resulting in significant reductions in both cell motility and cellular invasion, albeit with differences between the cells used. Our analysis further demonstrated that an increase in focal adhesion was, in part, able to explain some of the molecular mechanisms involved. Data collected using human placental sections and protein lysates further showed that ezrin expression was significantly higher during the early stage of placentation and, importantly, clearly seen in the EVT anchoring columns, further supporting the potential role of ezrin in regulating migration and invasion in vivo.
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Affiliation(s)
| | - Janesh K. Gupta
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham B15 2TT, UK
- Fetal Medicine Centre, Birmingham Women’s NHS Foundation Trust, Birmingham B15 2TT, UK
| | - Stephane R. Gross
- School of Life and Health Sciences, Aston University, Birmingham B4 7ET, UK
- Correspondence: ; Tel.: +44-0121-204-3467
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Sin YJA, MacLeod R, Tanguay AP, Wang A, Braender-Carr O, Vitelli TM, Jay GD, Schmidt TA, Cowman MK. Noncovalent hyaluronan crosslinking by TSG-6: Modulation by heparin, heparan sulfate, and PRG4. Front Mol Biosci 2022; 9:990861. [PMID: 36275631 PMCID: PMC9579337 DOI: 10.3389/fmolb.2022.990861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
The size, conformation, and organization of the glycosaminoglycan hyaluronan (HA) affect its interactions with soluble and cell surface-bound proteins. HA that is induced to form stable networks has unique biological properties relative to unmodified soluble HA. AlphaLISA assay technology offers a facile and general experimental approach to assay protein-mediated networking of HA in solution. Connections formed between two end-biotinylated 50 kDa HA (bHA) chains can be detected by signal arising from streptavidin-coated donor and acceptor beads being brought into close proximity when the bHA chains are bridged by proteins. We observed that incubation of bHA with the protein TSG-6 (tumor necrosis factor alpha stimulated gene/protein 6, TNFAIP/TSG-6) leads to dimerization or higher order multimerization of HA chains in solution. We compared two different heparin (HP) samples and two heparan sulfate (HS) samples for the ability to disrupt HA crosslinking by TSG-6. Both HP samples had approximately three sulfates per disaccharide, and both were effective in inhibiting HA crosslinking by TSG-6. HS with a relatively high degree of sulfation (1.75 per disaccharide) also inhibited TSG-6 mediated HA networking, while HS with a lower degree of sulfation (0.75 per disaccharide) was less effective. We further identified Proteoglycan 4 (PRG4, lubricin) as a TSG-6 ligand, and found it to inhibit TSG-6-mediated HA crosslinking. The effects of HP, HS, and PRG4 on HA crosslinking by TSG-6 were shown to be due to HP/HS/PRG4 inhibition of HA binding to the Link domain of TSG-6. Using the AlphaLISA platform, we also tested other HA-binding proteins for ability to create HA networks. The G1 domain of versican (VG1) effectively networked bHA in solution but required a higher concentration than TSG-6. Cartilage link protein (HAPLN1) and the HA binding protein segment of aggrecan (HABP, G1-IGD-G2) showed only low and variable magnitude HA networking effects. This study unambiguously demonstrates HA crosslinking in solution by TSG-6 and VG1 proteins, and establishes PRG4, HP and highly sulfated HS as modulators of TSG-6 mediated HA crosslinking.
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Affiliation(s)
- Yun Jin Ashley Sin
- Department of Biomedical Engineering, Tandon School of Engineering, New York University, New York, NY, United States
| | - Rebecca MacLeod
- Department of Biomedical Engineering, Tandon School of Engineering, New York University, New York, NY, United States
| | - Adam P. Tanguay
- Department of Biomedical Engineering, School of Dental Medicine, UConn Health, Farmington, CT, United States
| | - Andrew Wang
- New York Medical College, Valhalla, NY, United States
| | - Olivia Braender-Carr
- Department of Biomedical Engineering, Tandon School of Engineering, New York University, New York, NY, United States
| | - Teraesa M. Vitelli
- Department of Biomedical Engineering, Tandon School of Engineering, New York University, New York, NY, United States
| | - Gregory D. Jay
- Department of Emergency Medicine, Warren Alpert Medical School and School of Engineering, Brown University, Providence, RI, United States
| | - Tannin A. Schmidt
- Department of Biomedical Engineering, School of Dental Medicine, UConn Health, Farmington, CT, United States
- *Correspondence: Mary K. Cowman, ; Tannin A. Schmidt,
| | - Mary K. Cowman
- Department of Biomedical Engineering, Tandon School of Engineering, New York University, New York, NY, United States
- Department of Orthopedic Surgery, Grossman School of Medicine, New York University, New York, NY, United States
- *Correspondence: Mary K. Cowman, ; Tannin A. Schmidt,
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Han J, Zhang H, Li N, Aziz AUR, Zhang Z, Liu B. The raft cytoskeleton binding protein complexes personate functional regulators in cell behaviors. Acta Histochem 2022; 124:151859. [PMID: 35123353 DOI: 10.1016/j.acthis.2022.151859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/23/2022] [Accepted: 01/27/2022] [Indexed: 12/08/2022]
Abstract
Several cytoskeleton proteins interact with raft proteins to form raft-cytoskeleton binding protein complexes (RCPCs) that control cell migration and adhesion. The purpose of this paper is to review the latest research on the modes and mechanisms by which a RCPC controls different cellular functions. This paper discusses RCPC composition and its role in cytoskeleton reorganization, as well as the latest developments in molecular mechanisms that regulate cell adhesion and migration under normal conditions. In addition, the role of some external stimuli (such as stress and chemical signals) in this process is further debated, and meanwhile potential mechanisms for RCPC to regulate lipid raft fluidity is proposed. Thus, this review mainly contributes to the understanding of RCPC signal transduction in cells. Additionally, the targeted signal transduction of RCPC and its mechanism connection with cell behaviors will provide a logical basis for the development of unified interventions to combat metastasis related dysfunction and diseases.
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Affiliation(s)
- Jinxin Han
- School of Biomedical Engineering, Dalian University of Technology, Key Laboratory for Integrated Circuit and Biomedical Electronic System of Liaoning Province, Dalian 116024, China
| | - Hangyu Zhang
- School of Biomedical Engineering, Dalian University of Technology, Key Laboratory for Integrated Circuit and Biomedical Electronic System of Liaoning Province, Dalian 116024, China
| | - Na Li
- School of Biomedical Engineering, Dalian University of Technology, Key Laboratory for Integrated Circuit and Biomedical Electronic System of Liaoning Province, Dalian 116024, China
| | - Aziz Ur Rehman Aziz
- School of Biomedical Engineering, Dalian University of Technology, Key Laboratory for Integrated Circuit and Biomedical Electronic System of Liaoning Province, Dalian 116024, China
| | - Zhengyao Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin 124221, China.
| | - Bo Liu
- School of Biomedical Engineering, Dalian University of Technology, Key Laboratory for Integrated Circuit and Biomedical Electronic System of Liaoning Province, Dalian 116024, China.
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7
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Evrard C, Lambert de Rouvroit C, Poumay Y. Epidermal Hyaluronan in Barrier Alteration-Related Disease. Cells 2021; 10:3096. [PMID: 34831319 PMCID: PMC8618819 DOI: 10.3390/cells10113096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 12/13/2022] Open
Abstract
In skin, although the extracellular matrix (ECM) is highly developed in dermis and hypodermis, discrete intercellular spaces between cells of the living epidermal layers are also filled with ECM components. Herein, we review knowledge about structure, localization and role of epidermal hyaluronan (HA), a key ECM molecule. HA is a non-sulfated glycosaminoglycan non-covalently bound to proteins or lipids. Components of the basal lamina maintain some segregation between the epidermis and the underlying dermis, and all epidermal HA is locally synthesized and degraded. Functions of HA in keratinocyte proliferation and differentiation are still controversial. However, through interactions with partners, such as the TSG-6 protein, HA is involved in the formation, organization and stabilization of the epidermal ECM. In addition, epidermal HA is involved in the formation of an efficient epidermal barrier made of cornified keratinocytes. In atopic dermatitis (AD) with profuse alterations of the epidermal barrier, HA is produced in larger amounts by keratinocytes than in normal skin. Epidermal HA inside AD lesional skin is located in enlarged intercellular spaces, likely as the result of disease-related modifications of HA metabolism.
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Affiliation(s)
| | | | - Yves Poumay
- Research Unit for Molecular Physiology (URPhyM), Department of Medicine, Namur Research Institute for Life Sciences (NARILIS), University of Namur, B-5000 Namur, Belgium; (C.E.); (C.L.d.R.)
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8
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Effect of Pig-Adipose-Derived Stem Cells' Conditioned Media on Skin Wound-Healing Characteristics In Vitro. Int J Mol Sci 2021; 22:ijms22115469. [PMID: 34067360 PMCID: PMC8196863 DOI: 10.3390/ijms22115469] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 01/05/2023] Open
Abstract
The primary mechanism by which adipose-derived stem cells (ASCs) exert their reparative or regenerative potential relies predominantly on paracrine action. Secretory abilities of ASCs have been found to be amplified by hypoxia pre-conditioning. This study investigates the impact of hypoxia (1% O2) on the secretome composition of pig ASCs (pASCs) and explores the effect of pASCs’ conditioned media (CM) on skin cell functions in vitro and the expression of markers attributed to wound healing. Exposure of pASCs to hypoxia increased levels of vascular endothelial growth factor (VEGF) in CM-Hyp compared to CM collected from the cells cultured in normoxia (CM-Nor). CM-Hyp promoted the migratory ability of pig keratinocytes (pKERs) and delayed migration of pig dermal fibroblasts (pDFs). Exposure of pKERs to either CM-Nor or CM-Hyp decreased the levels of pro-fibrotic indicators WNT10A and WNT11. Furthermore, CM-Hyp enhanced the expression of KRT14, the marker of the basal epidermis layer. In contrast, CM-Nor showed a stronger effect on pDFs manifested by increases in TGFB1, COL1A1, COL3A1, and FN1 mRNA expression. The formation of three-dimensional endothelial cell networks was improved in the presence of CM-Hyp. Overall, our results demonstrate that the paracrine activity of pASCs affects skin cells, and this property might be used to modulate wound healing.
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Jokela TA, LaBarge MA. Integration of mechanical and ECM microenvironment signals in the determination of cancer stem cell states. CURRENT STEM CELL REPORTS 2020; 7:39-47. [PMID: 33777660 DOI: 10.1007/s40778-020-00182-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Purpose of review Cancer stem cells (CSCs) are increasingly understood to play a central role in tumor progression. Growing evidence implicates tumor microenvironments as a source of signals that regulate or even impose CSC states on tumor cells. This review explores points of integration for microenvironment-derived signals that are thought to regulate CSCs in carcinomas. Recent findings CSC states are directly regulated by the mechanical properties and extra cellular matrix (ECM) composition of tumor microenvironments that promote CSC growth and survival, which may explain some modes of therapeutic resistance. CSCs sense mechanical forces and ECM composition through integrins and other cell surface receptors, which then activate a number of intracellular signaling pathways. The relevant signaling events are dynamic and context-dependent. Summary CSCs are thought to drive cancer metastases and therapeutic resistance. Cells that are in CSC states and more differentiated states appear to be reversible and conditional upon the components of the tumor microenvironment. Signals imposed by tumor microenvironment are of a combinatorial nature, ultimately representing the integration of multiple physical and chemical signals. Comprehensive understanding of the tumor microenvironment-imposed signaling that maintains cells in CSC states may guide future therapeutic interventions.
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Affiliation(s)
- Tiina A Jokela
- Department of Population Sciences, Beckman Research Institute, City of Hope, 1500 E. Duarte Rd, Duarte CA 91010
| | - Mark A LaBarge
- Department of Population Sciences, Beckman Research Institute, City of Hope, 1500 E. Duarte Rd, Duarte CA 91010
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10
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Lugović-Mihić L, Novak-Bilić G, Vučić M, Japundžić I, Bukvić I. CD44 expression in human skin: High expression in irritant and allergic contact dermatitis and moderate expression in psoriasis lesions in comparison with healthy controls. Contact Dermatitis 2020; 82:297-306. [PMID: 31900953 DOI: 10.1111/cod.13463] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 12/05/2019] [Accepted: 01/02/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Previous research using animal models demonstrated that CD44 expression may contribute to directing inflammatory cells into skin lesions during inflammation development in allergic contact dermatitis (ACD). OBJECTIVES To examine CD44 expression in patients with ACD and irritant contact dermatitis (ICD), and to compare it to patients with psoriatic lesions and healthy controls' (HCs) skin. METHODS This study included 200 patients comprising four groups of 50 each: ACD, ICD, psoriasis vulgaris, and HCs. CD44 expression was determined by immunohistochemical analysis using an optical microscope, and the results were visualized semiquantitatively by determining the percentage of immunoreactive cells in the epidermis, dermis, and on lymphocytes. RESULTS The highest CD44 expression was found in ICD, followed by ACD, psoriasis vulgaris, and lastly, the HCs (P < .001). Epidermal CD44 expression was significantly higher in contact dermatoses (especially in ICD) compared with psoriasis and healthy skin (P < .001). Similarly, CD44 expression in the dermis and on lymphocytes was strongest in ICD, although less pronounced than in the epidermis. CONCLUSIONS Because significantly elevated CD44 expression in ICD might be related to its function in maintaining and preserving the skin barrier in affected patients, further research on disease pathogenesis and new treatment options is needed.
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Affiliation(s)
- Liborija Lugović-Mihić
- Department of Dermatovenereology, University Hospital Center Sestre Milosrdnice, Zagreb, Croatia
| | - Gaby Novak-Bilić
- Department of Dermatovenereology, University Hospital Center Sestre Milosrdnice, Zagreb, Croatia
| | - Majda Vučić
- Department of Pathology Ljudevit Jurak, University Hospital Center Sestre Milosrdnice, Zagreb, Croatia
| | - Iva Japundžić
- Department of Dermatovenereology, University Hospital Center Sestre Milosrdnice, Zagreb, Croatia
| | - Iva Bukvić
- Department of Dermatovenereology, University Hospital Center Sestre Milosrdnice, Zagreb, Croatia
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11
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Melanocyte Hyaluronan Coat Fragmentation Enhances the UVB-Induced TLR-4 Receptor Signaling and Expression of Proinflammatory Mediators IL6, IL8, CXCL1, and CXCL10 via NF-κB Activation. J Invest Dermatol 2019; 139:1993-2003.e4. [DOI: 10.1016/j.jid.2019.03.1135] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 02/20/2019] [Accepted: 03/05/2019] [Indexed: 12/18/2022]
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12
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Tammi MI, Oikari S, Pasonen-Seppänen S, Rilla K, Auvinen P, Tammi RH. Activated hyaluronan metabolism in the tumor matrix — Causes and consequences. Matrix Biol 2019; 78-79:147-164. [DOI: 10.1016/j.matbio.2018.04.012] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 03/13/2018] [Accepted: 04/25/2018] [Indexed: 02/08/2023]
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13
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Frühbauer B, Mateos B, Konrat R. 1H, 15N, 13C resonance assignment of the human CD44 cytoplasmic tail (669-742). BIOMOLECULAR NMR ASSIGNMENTS 2019; 13:109-113. [PMID: 30474821 PMCID: PMC6439174 DOI: 10.1007/s12104-018-9861-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 10/31/2018] [Indexed: 06/09/2023]
Abstract
CD44 is a universally and abundantly expressed single-pass type I protein that spans the cytoplasmic membrane and is considered the principal receptor for hyaluronan in the extracellular matrix. CD44 exerts a multitude of biological functions, especially in cell adhesion and migration, and its deregulation has several pathological implications, including a putative role in cancer cell dissemination. Here we report the NMR chemical shift assignment of the recombinant intrinsically disordered CD44 cytoplasmic region (669-742).
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Affiliation(s)
- Benjamin Frühbauer
- Max F. Perutz Laboratories, Department of Computational and Structural Biology, University of Vienna, Campus Vienna Biocenter 5, 1030, Vienna, Austria
| | - Borja Mateos
- Max F. Perutz Laboratories, Department of Computational and Structural Biology, University of Vienna, Campus Vienna Biocenter 5, 1030, Vienna, Austria
| | - Robert Konrat
- Max F. Perutz Laboratories, Department of Computational and Structural Biology, University of Vienna, Campus Vienna Biocenter 5, 1030, Vienna, Austria.
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14
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Hämäläinen L, Kärkkäinen E, Takabe P, Rauhala L, Bart G, Kärnä R, Pasonen-Seppänen S, Oikari S, Tammi MI, Tammi RH. Hyaluronan metabolism enhanced during epidermal differentiation is suppressed by vitamin C. Br J Dermatol 2018; 179:651-661. [PMID: 29405260 DOI: 10.1111/bjd.16423] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND Hyaluronan is a large, linear glycosaminoglycan present throughout the narrow extracellular space of the vital epidermis. Increased hyaluronan metabolism takes place in epidermal hypertrophy, wound healing and cancer. Hyaluronan is produced by hyaluronan synthases and catabolized by hyaluronidases, reactive oxygen species and KIAA1199. OBJECTIVES To investigate the changes in hyaluronan metabolism during epidermal stratification and maturation, and the impact of vitamin C on these events. METHODS Hyaluronan synthesis and expression of the hyaluronan-related genes were analysed during epidermal maturation from a simple epithelium to a fully differentiated epidermis in organotypic cultures of rat epidermal keratinocytes using quantitative reverse transcriptase polymerase chain reaction, immunostaining and Western blotting, in the presence and absence of vitamin C. RESULTS With epidermal stratification, both the production and the degradation of hyaluronan were enhanced, resulting in an increase of hyaluronan fragments of various sizes. While the mRNA levels of Has3 and KIAA1199 remained stable during the maturation, Has1, Has2 and Hyal2 showed a transient upregulation during stratification, Hyal1 transcription remained permanently increased and transcription of the hyaluronan receptor, Cd44, decreased. At maturation, vitamin C downregulated Has2, Hyal2 and Cd44, whereas it increased high-molecular-mass hyaluronan in the epidermis, and reduced small fragments in the medium, suggesting stabilization of epidermal hyaluronan. CONCLUSIONS Epidermal stratification and maturation is associated with enhanced hyaluronan turnover, and release of large amounts of hyaluronan fragments. The high turnover is suppressed by vitamin C, which is suggested to enhance normal epidermal differentiation in part through its effect on hyaluronan.
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Affiliation(s)
- L Hämäläinen
- Institute of Biomedicine/Anatomy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - E Kärkkäinen
- Institute of Biomedicine/Anatomy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - P Takabe
- Institute of Biomedicine/Anatomy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - L Rauhala
- Institute of Biomedicine/Anatomy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - G Bart
- Institute of Biomedicine/Anatomy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - R Kärnä
- Institute of Biomedicine/Anatomy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - S Pasonen-Seppänen
- Institute of Biomedicine/Anatomy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - S Oikari
- Institute of Biomedicine/Anatomy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland.,Dentistry, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - M I Tammi
- Institute of Biomedicine/Anatomy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
| | - R H Tammi
- Institute of Biomedicine/Anatomy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland
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15
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Belvedere R, Bizzarro V, Parente L, Petrella F, Petrella A. Effects of Prisma® Skin dermal regeneration device containing glycosaminoglycans on human keratinocytes and fibroblasts. Cell Adh Migr 2017; 12:168-183. [PMID: 28795878 DOI: 10.1080/19336918.2017.1340137] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Prisma® Skin is a new pharmaceutical device developed by Mediolanum Farmaceutici S.p.a. It includes alginates, hyaluronic acid and mainly mesoglycan. The latter is a natural glycosaminoglycan preparation containing chondroitin sulfate, dermatan sulfate, heparan sulfate and heparin and it is used in the treatment of vascular disease. Glycosaminoglycans may contribute to the re-epithelialization in the skin wound healing, as components of the extracellular matrix. Here we describe, for the first time, the effects of Prisma® Skin in in vitro cultures of adult epidermal keratinocytes and dermal fibroblasts. Once confirmed the lack of cytotoxicity by mesoglycan and Prisma® Skin, we have shown the increase of S and G2 phases of fibroblasts cell cycle distribution. We further report the strong induction of cell migration rate and invasion capability on both cell lines, two key processes of wound repair. In support of these results, we found significant cytoskeletal reorganization, following the treatments with mesoglycan and Prisma® Skin, as confirmed by the formation of F-actin stress fibers. Additionally, together with a significant reduction of E-cadherin, keratinocytes showed an increase of CD44 expression and the translocation of ezrin to the plasma membrane, suggesting the involvement of CD44/ERM (ezrin-radixin-moesin) pathway in the induction of the analyzed processes. Furthermore, as showed by immunofluorescence assay, fibroblasts treated with mesoglycan and Prisma® Skin exhibited the increase of Fibroblast Activated Protein α and a remarkable change in shape and orientation, two common features of reactive stromal fibroblasts. In all experiments Prisma® Skin was slightly more potent than mesoglycan. In conclusion, based on these findings we suggest that Prisma® Skin may be able to accelerate the healing process in venous skin ulcers, principally enhancing re-epithelialization and granulation processes.
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Affiliation(s)
- Raffaella Belvedere
- a Department of Pharmacy , University of Salerno , Fisciano, Salerno , Italy
| | - Valentina Bizzarro
- a Department of Pharmacy , University of Salerno , Fisciano, Salerno , Italy
| | - Luca Parente
- a Department of Pharmacy , University of Salerno , Fisciano, Salerno , Italy
| | - Francesco Petrella
- b Primary Care - Wound Care Service , Health Local Agency Naples 3 South , Portici, Napoli , Italy
| | - Antonello Petrella
- a Department of Pharmacy , University of Salerno , Fisciano, Salerno , Italy
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16
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HA metabolism in skin homeostasis and inflammatory disease. Food Chem Toxicol 2017; 101:128-138. [DOI: 10.1016/j.fct.2017.01.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/16/2017] [Accepted: 01/17/2017] [Indexed: 01/10/2023]
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17
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Hyaluronan mediates the adhesion of porcine peripheral blood mononuclear cells to poly (I:C)-treated intestinal cells and modulates their cytokine production. Vet Immunol Immunopathol 2016; 184:8-17. [PMID: 28166932 DOI: 10.1016/j.vetimm.2016.12.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 11/18/2016] [Accepted: 12/22/2016] [Indexed: 02/07/2023]
Abstract
Hyaluronan (HA), a major component of the extracellular matrix (ECM), has been increasingly recognized as a regulator of inflammation. Its role is complex since it has pro- and anti-inflammatory actions by modulating the expression of inflammatory genes, the recruitment of inflammatory cells and the production of inflammatory cytokines, but also by attenuating the course of inflammation and providing protection against tissue damage. Certain viruses and other inflammatory stimuli induce organization of HA into cable-like structures, which may be responsible for leukocyte recruitment and, on the other hand, low molecular weight fragments of HA have been shown to activate various inflammatory responses. The aim of the present study was to analyze the effects of a simulated infection with the viral mimetic Poly (I:C) on HA deposition on different porcine intestinal cells (primary colonic muscular smooth muscle cells (SMC), and epithelial IPEC-J2 and IPI-2I cell lines) and on the recruitment of peripheral blood mononuclear cells (PBMC) to intestinal cell layers. We show that Poly (I:C) treatment induces the formation of an HA-based pericellular matrix coat in muscular SMC and in intestinal epithelial cells (IECs) and that, on differentiated IPEC-J2 cells, HA accumulates in the basolateral membrane. Porcine PBMCs bind to Poly (I:C)-treated cells and this binding is dependent on HA, since the increase in adhesion is abolished by hyaluronidase treatment of the cell layers. A second goal was to study the effect of different molecular weight HA forms on the production of pro-inflammatory cytokines and chemokines (TNF-α, IL-1β and IL-8) by porcine PBMCs. Low molecular weight HA fragments (100-150kDa), in contrast to high molecular weight HA (2500kDa), stimulate the release of these pro-inflammatory mediators by porcine PBMCs. Our results suggest that HA is involved in the inflammatory response against pathogenic insults to the porcine gut.
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18
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Deen AJ, Arasu UT, Pasonen-Seppänen S, Hassinen A, Takabe P, Wojciechowski S, Kärnä R, Rilla K, Kellokumpu S, Tammi R, Tammi M, Oikari S. UDP-sugar substrates of HAS3 regulate its O-GlcNAcylation, intracellular traffic, extracellular shedding and correlate with melanoma progression. Cell Mol Life Sci 2016; 73:3183-204. [PMID: 26883802 PMCID: PMC11108457 DOI: 10.1007/s00018-016-2158-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 01/25/2016] [Accepted: 02/04/2016] [Indexed: 01/06/2023]
Abstract
Hyaluronan content is a powerful prognostic factor in many cancer types, but the molecular basis of its synthesis in cancer still remains unclear. Hyaluronan synthesis requires the transport of hyaluronan synthases (HAS1-3) from Golgi to plasma membrane (PM), where the enzymes are activated. For the very first time, the present study demonstrated a rapid recycling of HAS3 between PM and endosomes, controlled by the cytosolic levels of the HAS substrates UDP-GlcUA and UDP-GlcNAc. Depletion of UDP-GlcNAc or UDP-GlcUA shifted the balance towards HAS3 endocytosis, and inhibition of hyaluronan synthesis. In contrast, UDP-GlcNAc surplus suppressed endocytosis and lysosomal decay of HAS3, favoring its retention in PM, stimulating hyaluronan synthesis, and HAS3 shedding in extracellular vesicles. The concentration of UDP-GlcNAc also controlled the level of O-GlcNAc modification of HAS3. Increasing O-GlcNAcylation reproduced the effects of UDP-GlcNAc surplus on HAS3 trafficking, while its suppression showed the opposite effects, indicating that O-GlcNAc signaling is associated to UDP-GlcNAc supply. Importantly, a similar correlation existed between the expression of GFAT1 (the rate limiting enzyme in UDP-GlcNAc synthesis) and hyaluronan content in early and deep human melanomas, suggesting the association of UDP-sugar metabolism in initiation of melanomagenesis. In general, changes in glucose metabolism, realized through UDP-sugar contents and O-GlcNAc signaling, are important in HAS3 trafficking, hyaluronan synthesis, and correlates with melanoma progression.
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Affiliation(s)
- Ashik Jawahar Deen
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland.
| | - Uma Thanigai Arasu
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland
| | - Sanna Pasonen-Seppänen
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland
| | - Antti Hassinen
- Faculty of Biochemistry and Molecular Medicine, University of Oulu, 90014, Oulu, Finland
| | - Piia Takabe
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland
| | - Sara Wojciechowski
- A. I. Virtanen Institute for Molecular Sciences, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland
| | - Riikka Kärnä
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland
| | - Kirsi Rilla
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland
| | - Sakari Kellokumpu
- Faculty of Biochemistry and Molecular Medicine, University of Oulu, 90014, Oulu, Finland
| | - Raija Tammi
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland
| | - Markku Tammi
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland
| | - Sanna Oikari
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland.
- Institute of Dentistry, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland.
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