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Amargant F, Vieira C, Pritchard MT, Duncan FE. Systemic low-dose anti-fibrotic treatment attenuates ovarian aging in the mouse. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.21.600035. [PMID: 38979191 PMCID: PMC11230292 DOI: 10.1101/2024.06.21.600035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
The female reproductive system is one of the first to age in humans, resulting in infertility and endocrine disruptions. The aging ovary assumes a fibro-inflammatory milieu which negatively impacts gamete quantity and quality as well as ovulation. Here we tested whether the systemic delivery of anti-inflammatory (Etanercept) or anti-fibrotic (Pirfenidone) drugs attenuates ovarian aging in mice. We first evaluated the ability of these drugs to decrease the expression of fibro-inflammatory genes in primary ovarian stromal cells. Whereas Etanercept did not block Tnf expression in ovarian stromal cells, Pirfenidone significantly reduced Col1a1 expression. We then tested Pirfenidone in vivo where the drug was delivered systemically via mini-osmotic pumps for 6-weeks. Pirfenidone mitigated the age-dependent increase in ovarian fibrosis without impacting overall health parameters. Ovarian function was improved in Pirfenidone-treated mice as evidenced by increased follicle and corpora lutea number, AMH levels, and improved estrous cyclicity. Transcriptomic analysis revealed that Pirfenidone treatment resulted in an upregulation of reproductive function-related genes at 8.5 months and a downregulation of inflammatory genes at 12 months of age. These findings demonstrate that reducing the fibroinflammatory ovarian microenvironment improves ovarian function, thereby supporting modulating the ovarian environment as a therapeutic avenue to extend reproductive longevity.
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Affiliation(s)
- Farners Amargant
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Carol Vieira
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Michele T Pritchard
- Department of Pharmacology, Toxicology and Therapeutics and Institute for Reproductive and Developmental Sciences University of Kansas Medical Center, Kansas City, KS, USA
| | - Francesca E Duncan
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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2
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Qian Z, Li R, Zhao T, Xie K, Li P, Li G, Shen N, Gong J, Hong X, Yang L, Li H. Blockade of the ADAM8-Fra-1 complex attenuates neuroinflammation by suppressing the Map3k4/MAPKs axis after spinal cord injury. Cell Mol Biol Lett 2024; 29:75. [PMID: 38755530 PMCID: PMC11100242 DOI: 10.1186/s11658-024-00589-3] [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: 02/05/2024] [Accepted: 05/06/2024] [Indexed: 05/18/2024] Open
Abstract
BACKGROUND Mechanical spinal cord injury (SCI) is a deteriorative neurological disorder, causing secondary neuroinflammation and neuropathy. ADAM8 is thought to be an extracellular metalloproteinase, which regulates proteolysis and cell adherence, but whether its intracellular region is involved in regulating neuroinflammation in microglia after SCI is unclear. METHODS Using animal tissue RNA-Seq and clinical blood sample examinations, we found that a specific up-regulation of ADAM8 in microglia was associated with inflammation after SCI. In vitro, microglia stimulated by HMGB1, the tail region of ADAM8, promoted microglial inflammation, migration and proliferation by directly interacting with ERKs and Fra-1 to promote activation, then further activated Map3k4/JNKs/p38. Using SCI mice, we used BK-1361, a specific inhibitor of ADAM8, to treat these mice. RESULTS The results showed that administration of BK-1361 attenuated the level of neuroinflammation and reduced microglial activation and recruitment by inhibiting the ADAM8/Fra-1 axis. Furthermore, treatment with BK-1361 alleviated glial scar formation, and also preserved myelin and axonal structures. The locomotor recovery of SCI mice treated with BK-1361 was therefore better than those without treatment. CONCLUSIONS Taken together, the results showed that ADAM8 was a critical molecule, which positively regulated neuroinflammatory development and secondary pathogenesis by promoting microglial activation and migration. Mechanically, ADAM8 formed a complex with ERK and Fra-1 to further activate the Map3k4/JNK/p38 axis in microglia. Inhibition of ADAM8 by treatment with BK-1361 decreased the levels of neuroinflammation, glial formation, and neurohistological loss, leading to favorable improvement in locomotor functional recovery in SCI mice.
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Affiliation(s)
- Zhanyang Qian
- Department of Orthopedics, Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China
- Department of Orthopedics, Zhongda Hospital of Southeast University, Nanjing, China
| | - Rulin Li
- Department of Orthopedics, Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China
- School of Postgraduate, Dalian Medical University, Dalian, China
| | - Tianyu Zhao
- Department of Orthopedics, Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China
- School of Postgraduate, Dalian Medical University, Dalian, China
| | - Kunxin Xie
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, China
| | - PengFei Li
- Department of Orthopedics, Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China
- School of Postgraduate, Nanjing University of Chinese Medicine, Nanjing, China
| | - Guangshen Li
- Department of Orthopedics, Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China
| | - Na Shen
- School of Basic Medicine, Nanjing Medical University, Nanjing, China
| | - Jiamin Gong
- School of Basic Medicine, Nanjing Medical University, Nanjing, China
| | - Xin Hong
- Department of Orthopedics, Zhongda Hospital of Southeast University, Nanjing, China
| | - Lei Yang
- Department of Orthopedics, Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China.
| | - Haijun Li
- Department of Orthopedics, Taizhou People's Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China.
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3
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Cook L, Gharzia FG, Bartsch JW, Yildiz D. A jack of all trades - ADAM8 as a signaling hub in inflammation and cancer. FEBS J 2023. [PMID: 38097912 DOI: 10.1111/febs.17034] [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: 08/18/2023] [Revised: 10/23/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023]
Abstract
As a member of the family of A Disintegrin And Metalloproteinases (ADAM) ADAM8 is preferentially expressed in lymphatic organs, immune cells, and tumor cells. The substrate spectrum for ADAM8 proteolytic activity is not exclusive but is related to effectors of inflammation and signaling in the tumor microenvironment. In addition, complexes of ADAM8 with extracellular binding partners such as integrin β-1 cause an extensive intracellular signaling in tumor cells, thereby activating kinase pathways with STAT3, ERK1/2, and Akt signaling, which causes increased cell survival and enhanced motility. The cytoplasmic domain of ADAM8 harbors five SRC homology-3 (SH3) domains that can potentially interact with several proteins involved in actin dynamics and cell motility, including Myosin 1F (MYO1F), which is essential for neutrophil motility. The concept of ADAM8 thus involves immune cell recruitment, in most cases leading to an enhancement of inflammatory (asthma, COPD) and tumor (including pancreatic and breast cancers) pathologies. In this review, we report on available studies that qualify ADAM8 as a therapeutic target in different pathologies. As a signaling hub, ADAM8 controls extracellular, intracellular, and intercellular communication, the latter one mainly mediated by the release of extracellular vesicles with ADAM8 as cargo. Here, we will dissect the contribution of different domains to these distinct ways of communication in several pathologies. We conclude that therapeutic targeting attempts for ADAM8 should consider blocking more than a single domain and that this requires a thorough evaluation of potent molecules targeting ADAM8 in an in vivo setting.
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Affiliation(s)
- Lena Cook
- Department of Neurosurgery, Philipps University Marburg, Germany
| | - Federico Guillermo Gharzia
- Experimental and Clinical Pharmacology and Toxicology Center for Molecular Signaling (PZMS), Saarland University, Homburg, Germany
| | - Jörg W Bartsch
- Department of Neurosurgery, Philipps University Marburg, Germany
| | - Daniela Yildiz
- Experimental and Clinical Pharmacology and Toxicology Center for Molecular Signaling (PZMS), Saarland University, Homburg, Germany
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4
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Mierke CT. The versatile roles of ADAM8 in cancer cell migration, mechanics, and extracellular matrix remodeling. Front Cell Dev Biol 2023; 11:1130823. [PMID: 36910158 PMCID: PMC9995898 DOI: 10.3389/fcell.2023.1130823] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/15/2023] [Indexed: 02/25/2023] Open
Abstract
The posttranslational proteolytic cleavage is a unique and irreversible process that governs the function and half-life of numerous proteins. Thereby the role of the family of A disintegrin and metalloproteases (ADAMs) plays a leading part. A member of this family, ADAM8, has gained attention in regulating disorders, such as neurogenerative diseases, immune function and cancer, by attenuating the function of proteins nearby the extracellular membrane leaflet. This process of "ectodomain shedding" can alter the turnover rate of a number of transmembrane proteins that function in cell adhesion and receptor signal transduction. In the past, the major focus of research about ADAMs have been on neurogenerative diseases, such as Alzheimer, however, there seems to be evidence for a connection between ADAM8 and cancer. The role of ADAMs in the field of cancer research has gained recent attention, but it has been not yet been extensively addressed. Thus, this review article highlights the various roles of ADAM8 with particular emphasis on pathological conditions, such as cancer and malignant cancer progression. Here, the shedding function, direct and indirect matrix degradation, effects on cancer cell mobility and transmigration, and the interplay of ADAM8 with matrix-embedded neighboring cells are presented and discussed. Moreover, the most probable mechanical impact of ADAM8 on cancer cells and their matrix environment is addressed and debated. In summary, this review presents recent advances in substrates/ligands and functions of ADAM8 in its new role in cancer and its potential link to cell mechanical properties and discusses matrix mechanics modifying properties. A deeper comprehension of the regulatory mechanisms governing the expression, subcellular localization, and activity of ADAM8 is expected to reveal appropriate drug targets that will permit a more tailored and fine-tuned modification of its proteolytic activity in cancer development and metastasis.
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Affiliation(s)
- Claudia Tanja Mierke
- Faculty of Physics and Earth Science, Biological Physics Division, Peter Debye Institute of Soft Matter Physics, Leipzig University, Leipzig, Germany
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5
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Radtke D, Thuma N, Schülein C, Kirchner P, Ekici AB, Schober K, Voehringer D. Th2 single-cell heterogeneity and clonal distribution at distant sites in helminth-infected mice. eLife 2022; 11:74183. [PMID: 35950748 PMCID: PMC9391044 DOI: 10.7554/elife.74183] [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: 09/24/2021] [Accepted: 08/10/2022] [Indexed: 11/13/2022] Open
Abstract
Th2 cells provide effector functions in type 2 immune responses to helminths and allergens. Despite knowledge about molecular mechanisms of Th2 cell differentiation, there is little information on Th2 cell heterogeneity and clonal distribution between organs. To address this, we performed combined single-cell transcriptome and T-cell receptor (TCR) clonotype analysis on murine Th2 cells in mesenteric lymph nodes (MLNs) and lung after infection with Nippostrongylus brasiliensis (Nb) as a human hookworm infection model. We find organ-specific expression profiles, but also populations with conserved migration or effector/resident memory signatures that unexpectedly cluster with potentially regulatory Il10posFoxp3neg cells. A substantial MLN subpopulation with an interferon response signature suggests a role for interferon signaling in Th2 differentiation or diversification. Further RNA-inferred developmental directions indicate proliferation as a hub for differentiation decisions. Although the TCR repertoire is highly heterogeneous, we identified expanded clones and CDR3 motifs. Clonal relatedness between distant organs confirmed effective exchange of Th2 effector cells, although locally expanded clones dominated the response. We further cloned an Nb-specific TCR from an expanded clone in the lung effector cluster and describe surface markers that distinguish transcriptionally defined clusters. These results provide insights in Th2 cell subset diversity and clonal relatedness in distant organs.
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Affiliation(s)
- Daniel Radtke
- Department of Infection Biology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Natalie Thuma
- Department of Infection Biology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Christine Schülein
- Institute of Clinical Microbiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Philipp Kirchner
- Institute of Human Genetics, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Arif B Ekici
- Institute of Human Genetics, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Kilian Schober
- Institute of Clinical Microbiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - David Voehringer
- Department of Infection Biology, University of Erlangen-Nuremberg, Erlangen, Germany
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6
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Cook L, Sengelmann M, Winkler B, Nagl C, Koch S, Schlomann U, Slater EP, Miller MA, von Strandmann EP, Dörsam B, Preußer C, Bartsch JW. ADAM8-Dependent Extracellular Signaling in the Tumor Microenvironment Involves Regulated Release of Lipocalin 2 and MMP-9. Int J Mol Sci 2022; 23:ijms23041976. [PMID: 35216088 PMCID: PMC8875419 DOI: 10.3390/ijms23041976] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/03/2022] [Accepted: 02/08/2022] [Indexed: 12/11/2022] Open
Abstract
The metalloprotease-disintegrin ADAM8 is critically involved in the progression of pancreatic cancer. Under malignant conditions, ADAM8 is highly expressed and could play an important role in cell–cell communication as expression has been observed in tumor and immune cells of the tumor microenvironment (TME) such as macrophages. To analyze the potential role of ADAM8 in the TME, ADAM8 knockout PDAC tumor cells were generated, and their release of extracellular vesicles (EVs) was analyzed. In EVs, ADAM8 is present as an active protease and associated with lipocalin 2 (LCN2) and matrix metalloprotease 9 (MMP-9) in an ADAM8-dependent manner, as ADAM8 KO cells show a lower abundance of LCN2 and MMP-9. Sorting of ADAM8 occurs independent of TSG101, even though ADAM8 contains the recognition motif PTAP for the ESCRTI protein TSG101 within the cytoplasmic domain (CD). When tumor cells were co-cultured with macrophages (THP-1 cells), expression of LCN2 and MMP-9 in ADAM8 KO cells was induced, suggesting that macrophage signaling can overcome ADAM8-dependent intracellular signaling in PDAC cells. In co-culture with macrophages, regulation of MMP-9 is independent of the M1/M2 polarization state, whereas LCN2 expression is preferentially affected by M1-like macrophages. From these data, we conclude that ADAM8 has a systemic effect in the tumor microenvironment, and its expression in distinct cell types has to be considered for ADAM8 targeting in tumors.
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Affiliation(s)
- Lena Cook
- Department of Neurosurgery, Philipps University Marburg, Baldingerstr, 35033 Marburg, Germany; (L.C.); (M.S.); (B.W.); (C.N.); (S.K.); (U.S.)
| | - Marie Sengelmann
- Department of Neurosurgery, Philipps University Marburg, Baldingerstr, 35033 Marburg, Germany; (L.C.); (M.S.); (B.W.); (C.N.); (S.K.); (U.S.)
| | - Birte Winkler
- Department of Neurosurgery, Philipps University Marburg, Baldingerstr, 35033 Marburg, Germany; (L.C.); (M.S.); (B.W.); (C.N.); (S.K.); (U.S.)
| | - Constanze Nagl
- Department of Neurosurgery, Philipps University Marburg, Baldingerstr, 35033 Marburg, Germany; (L.C.); (M.S.); (B.W.); (C.N.); (S.K.); (U.S.)
| | - Sarah Koch
- Department of Neurosurgery, Philipps University Marburg, Baldingerstr, 35033 Marburg, Germany; (L.C.); (M.S.); (B.W.); (C.N.); (S.K.); (U.S.)
| | - Uwe Schlomann
- Department of Neurosurgery, Philipps University Marburg, Baldingerstr, 35033 Marburg, Germany; (L.C.); (M.S.); (B.W.); (C.N.); (S.K.); (U.S.)
- Department of Visceral Surgery, Philipps University Marburg, Baldingerstr, 35033 Marburg, Germany;
| | - Emily P. Slater
- Department of Visceral Surgery, Philipps University Marburg, Baldingerstr, 35033 Marburg, Germany;
| | - Miles A. Miller
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA;
| | - Elke Pogge von Strandmann
- Department of Medicine, Institute for Tumor Immunology, Philipps University Marburg, 35043 Marburg, Germany; (E.P.v.S.); (B.D.); (C.P.)
| | - Bastian Dörsam
- Department of Medicine, Institute for Tumor Immunology, Philipps University Marburg, 35043 Marburg, Germany; (E.P.v.S.); (B.D.); (C.P.)
| | - Christian Preußer
- Department of Medicine, Institute for Tumor Immunology, Philipps University Marburg, 35043 Marburg, Germany; (E.P.v.S.); (B.D.); (C.P.)
| | - Jörg W. Bartsch
- Department of Neurosurgery, Philipps University Marburg, Baldingerstr, 35033 Marburg, Germany; (L.C.); (M.S.); (B.W.); (C.N.); (S.K.); (U.S.)
- Correspondence: ; Tel.: +49-6421-58-61173
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7
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Conrad C, Yildiz D, Cleary SJ, Margraf A, Cook L, Schlomann U, Panaretou B, Bowser JL, Karmouty-Quintana H, Li J, Berg NK, Martin SC, Aljohmani A, Moussavi-Harami SF, Wang KM, Tian JJ, Magnen M, Valet C, Qiu L, Singer JP, Eltzschig HK, Bertrams W, Herold S, Suttorp N, Schmeck B, Ball ZT, Zarbock A, Looney MR, Bartsch JW. ADAM8 signaling drives neutrophil migration and ARDS severity. JCI Insight 2022; 7:e149870. [PMID: 35132956 PMCID: PMC8855804 DOI: 10.1172/jci.insight.149870] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 12/21/2021] [Indexed: 01/27/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS) results in catastrophic lung failure and has an urgent, unmet need for improved early recognition and therapeutic development. Neutrophil influx is a hallmark of ARDS and is associated with the release of tissue-destructive immune effectors, such as matrix metalloproteinases (MMPs) and membrane-anchored metalloproteinase disintegrins (ADAMs). Here, we observed using intravital microscopy that Adam8-/- mice had impaired neutrophil transmigration. In mouse pneumonia models, both genetic deletion and pharmacologic inhibition of ADAM8 attenuated neutrophil infiltration and lung injury while improving bacterial containment. Unexpectedly, the alterations of neutrophil function were not attributable to impaired proteolysis but resulted from reduced intracellular interactions of ADAM8 with the actin-based motor molecule Myosin1f that suppressed neutrophil motility. In 2 ARDS cohorts, we analyzed lung fluid proteolytic signatures and identified that ADAM8 activity was positively correlated with disease severity. We propose that in acute inflammatory lung diseases such as pneumonia and ARDS, ADAM8 inhibition might allow fine-tuning of neutrophil responses for therapeutic gain.
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Affiliation(s)
- Catharina Conrad
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, School of Medicine, University of California, San Francisco, San Francisco, California, USA
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Daniela Yildiz
- Institute of Experimental and Clinical Pharmacology and Toxicology, PZMS, ZHMB, Saarland University, Homburg, Germany
| | - Simon J. Cleary
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, School of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Andreas Margraf
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Lena Cook
- Department of Neurosurgery/Lab, Faculty of Medicine, Philipps-University, Marburg, Germany
| | - Uwe Schlomann
- Department of Neurosurgery/Lab, Faculty of Medicine, Philipps-University, Marburg, Germany
| | - Barry Panaretou
- School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King’s College London, London, United Kingdom
| | - Jessica L. Bowser
- Department of Pathology & Laboratory Medicine, School of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
| | | | - Jiwen Li
- Department of Anesthesiology, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Nathaniel K. Berg
- Department of Anesthesiology, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | | | - Ahmad Aljohmani
- Institute of Experimental and Clinical Pharmacology and Toxicology, PZMS, ZHMB, Saarland University, Homburg, Germany
| | - S. Farshid Moussavi-Harami
- Department of Pediatrics, Division of Pediatric Critical Care, University of California, San Francisco, San Francisco, California, USA
| | - Kristin M. Wang
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, School of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Jennifer J. Tian
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, School of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Mélia Magnen
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, School of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Colin Valet
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, School of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Longhui Qiu
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, School of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Jonathan P. Singer
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, School of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Holger K. Eltzschig
- Department of Anesthesiology, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | | | - Wilhelm Bertrams
- Institute for Lung Research (iLung), Philipps-University, Marburg, Germany
| | - Susanne Herold
- Department of Internal Medicine II, University Medical Center Giessen and Marburg, Giessen, Germany
- Deutsches Zentrum für Lungenforschung (DZL), Giessen, Germany
| | - Norbert Suttorp
- Department of Internal Medicine/Infectious Diseases and Respiratory Medicine, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Bernd Schmeck
- Deutsches Zentrum für Lungenforschung (DZL), Giessen, Germany
- Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg, Marburg, Germany
- German Center for Infectious Disease Research (DZIF), Marburg, Germany
- Center for Synthetic Microbiology (SYNMIKRO), Marburg, Germany
| | - Zachary T. Ball
- Department of Chemistry, Rice University, Houston, Texas, USA
| | - Alexander Zarbock
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Mark R. Looney
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, School of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Jörg W. Bartsch
- Department of Neurosurgery/Lab, Faculty of Medicine, Philipps-University, Marburg, Germany
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8
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Brassard J, Marsolais D, Blanchet MR. Mutant Mice and Animal Models of Airway Allergic Disease. Methods Mol Biol 2021; 2241:59-74. [PMID: 33486728 DOI: 10.1007/978-1-0716-1095-4_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Eosinophilia is a hallmark of allergic airway inflammation, and eosinophils represent an integral effector leukocyte through their release of various granule-stored cytokines and proteins. Numerous mouse models have been developed to mimic clinical disease and they have been instrumental in furthering our understanding of the role of eosinophils in disease. Most of these models consist of intranasal (i.n.) administration of antigenic proteases including papain and house dust mite (HDM) or the neo-antigen ovalbumin, with a resulting Th2-biased immune response and airway eosinophilia. These models have been particularly informative when combined with the numerous transgenic mice available that modulate eosinophil frequency or the mechanisms involved in their migration. Here, we describe the current models of allergic airway inflammation and outline some of the transgenic mice available to study eosinophil disease.
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Affiliation(s)
- Julyanne Brassard
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec City, QC, Canada
| | - David Marsolais
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec City, QC, Canada
| | - Marie-Renee Blanchet
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Quebec City, QC, Canada.
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Expression of the Metalloproteinase ADAM8 Is Upregulated in Liver Inflammation Models and Enhances Cytokine Release In Vitro. Mediators Inflamm 2021; 2021:6665028. [PMID: 33814981 PMCID: PMC7987468 DOI: 10.1155/2021/6665028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/22/2021] [Accepted: 03/02/2021] [Indexed: 11/17/2022] Open
Abstract
Acute and chronic liver inflammation is driven by cytokine and chemokine release from various cell types in the liver. Here, we report that the induction of inflammatory mediators is associated with a yet undescribed upregulation of the metalloproteinase ADAM8 in different murine hepatitis models. We further show the importance of ADAM8 expression for the production of inflammatory mediators in cultured liver cells. As a model of acute inflammation, we investigated liver tissue from lipopolysaccharide- (LPS-) treated mice in which ADAM8 expression was markedly upregulated compared to control mice. In vitro, stimulation with LPS enhanced ADAM8 expression in murine and human endothelial and hepatoma cell lines as well as in primary murine hepatocytes. The enhanced ADAM8 expression was associated with an upregulation of TNF-α and IL-6 expression and release. Inhibition studies indicate that the cytokine response of hepatoma cells to LPS depends on the activity of ADAM8 and that signalling by TNF-α can contribute to these ADAM8-dependent effects. The role of ADAM8 was further confirmed with primary hepatocytes from ADAM8 knockout mice in which TNF-α and IL-6 induction and release were considerably attenuated. As a model of chronic liver injury, we studied liver tissue from mice undergoing high-fat diet-induced steatohepatitis and again observed upregulation of ADAM8 mRNA expression compared to healthy controls. In vitro, ADAM8 expression was upregulated in hepatoma, endothelial, and stellate cell lines by various mediators of steatohepatitis including fatty acid (linoleic-oleic acid), IL-1β, TNF-α, IFN-γ, and TGF-β. Upregulation of ADAM8 was associated with the induction and release of proinflammatory cytokines (TNF-α and IL-6) and chemokines (CX3CL1). Finally, knockdown of ADAM8 expression in all tested cell types attenuated the release of these mediators. Thus, ADAM8 is upregulated in acute and chronic liver inflammation and is able to promote inflammation by enhancing expression and release of inflammatory mediators.
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10
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Jaworek C, Verel-Yilmaz Y, Driesch S, Ostgathe S, Cook L, Wagner S, Bartsch DK, Slater EP, Bartsch JW. Cohort Analysis of ADAM8 Expression in the PDAC Tumor Stroma. J Pers Med 2021; 11:jpm11020113. [PMID: 33578644 PMCID: PMC7916368 DOI: 10.3390/jpm11020113] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/05/2021] [Accepted: 02/07/2021] [Indexed: 12/17/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a cancer type with one of the highest mortalities. The metalloprotease-disintegrin ADAM8 is highly expressed in pancreatic cancer cells and is correlated with an unfavorable patient prognosis. However, no information is available on ADAM8 expression in cells of the tumor microenvironment. We used immunohistochemistry (IHC) to describe the stromal cell types expressing ADAM8 in PDAC patients using a cohort of 72 PDAC patients. We found ADAM8 expressed significantly in macrophages (6%), natural killer cells (40%), and neutrophils (63%), which showed the highest percentage of ADAM8 expressing stromal cells. We quantified the amount of ADAM8+ neutrophils in post-capillary venules in PDAC sections by IHC. Notably, the amount of ADAM8+ neutrophils could be correlated with post-operative patient survival times. In contrast, neither the total neutrophil count in peripheral blood nor the neutrophil-to-lymphocyte ratio showed a comparable correlation. We conclude from our data that ADAM8 is, in addition to high expression levels in tumor cells, present in tumor-associated stromal macrophages, NK cells, and neutrophils and, in addition to functional implications, the ADAM8-expressing neutrophil density in post-capillary venules is a diagnostic parameter for PDAC patients when the numbers of ADAM8+ neutrophils are quantified.
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Affiliation(s)
- Christian Jaworek
- Department of Neurosurgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (C.J.); (S.O.); (L.C.)
| | - Yesim Verel-Yilmaz
- Department of Visceral Surgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (Y.V.-Y.); (S.D.); (D.K.B.); (E.P.S.)
| | - Sarah Driesch
- Department of Visceral Surgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (Y.V.-Y.); (S.D.); (D.K.B.); (E.P.S.)
| | - Sarah Ostgathe
- Department of Neurosurgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (C.J.); (S.O.); (L.C.)
| | - Lena Cook
- Department of Neurosurgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (C.J.); (S.O.); (L.C.)
| | - Steffen Wagner
- Head and Neck Surgery, Department of Otorhinolaryngology, Justus Liebig University Giessen, Aulweg 128 (ForMED), 35392 Giessen, Germany;
| | - Detlef K. Bartsch
- Department of Visceral Surgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (Y.V.-Y.); (S.D.); (D.K.B.); (E.P.S.)
| | - Emily P. Slater
- Department of Visceral Surgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (Y.V.-Y.); (S.D.); (D.K.B.); (E.P.S.)
| | - Jörg W. Bartsch
- Department of Neurosurgery, Philipps University Marburg, Baldingerstrasse, 35033 Marburg, Germany; (C.J.); (S.O.); (L.C.)
- Correspondence: ; Tel.: +49-6421-58-61173
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11
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Zhang Y, Tian Z, Gerard D, Yao L, Shofer FS, Cs-Szabo G, Qin L, Pacifici M, Enomoto-Iwamoto M. Elevated inflammatory gene expression in intervertebral disc tissues in mice with ADAM8 inactivated. Sci Rep 2021; 11:1804. [PMID: 33469101 PMCID: PMC7815795 DOI: 10.1038/s41598-021-81495-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 12/31/2020] [Indexed: 12/24/2022] Open
Abstract
We found ADAM8 enzymatic activity elevated in degenerative human intervertebral disc (IVD). Here, we examined the discs in ADAM8-inactivation mice that carry a mutation preventing self-activation of the enzyme. Surprisingly, elevated gene expression for inflammatory markers (Cxcl1, IL6) was observed in injured discs of ADAM8 mutant mice, along with elevated expression of type 2 collagen gene (Col2a1), compared with wild type controls. Injured annulus fibrosus of mutant and wild type mice contained a higher proportion of large collagen fibers compared with intact discs, as documented by microscopic examination under circular polarized light. In the intact IVDs, Adam8EQ mouse AF contained lower proportion of yellow (intermediate) fiber than WT mice. This suggests that ADAM8 may regulate inflammation and collagen fiber assembly. The seemingly contradictory findings of elevated inflammatory markers in mutant mice and excessive ADAM8 activity in human degenerative discs suggest that ADAM8 may interact with other enzymatic and pro-inflammatory processes needed for tissue maintenance and repair. As a future therapeutic intervention to retard intervertebral disc degeneration, partial inhibition of ADAM8 proteolysis may be more desirable than complete inactivation of this enzyme.
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Affiliation(s)
- Yejia Zhang
- Department of Physical Medicine & Rehabilitation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
- Translational Musculoskeletal Research Center (TMRC), Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA, USA.
| | - Zuozhen Tian
- Department of Physical Medicine & Rehabilitation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - David Gerard
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
| | - Lutian Yao
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
- Department of Orthopaedics/Sports Medicine and Joint Surgery, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, China
| | - Frances S Shofer
- Emergency Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Gabriella Cs-Szabo
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
| | - Ling Qin
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Maurizio Pacifici
- Division of Orthopaedic Surgery, The Children's Hospital of Philadelphia, Philadelphia, USA
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12
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Machine-learning-driven biomarker discovery for the discrimination between allergic and irritant contact dermatitis. Proc Natl Acad Sci U S A 2020; 117:33474-33485. [PMID: 33318199 PMCID: PMC7776829 DOI: 10.1073/pnas.2009192117] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Contact dermatitis tremendously impacts the quality of life of suffering patients. Currently, diagnostic regimes rely on allergy testing, exposure specification, and follow-up visits; however, distinguishing the clinical phenotype of irritant and allergic contact dermatitis remains challenging. Employing integrative transcriptomic analysis and machine-learning approaches, we aimed to decipher disease-related signature genes to find suitable sets of biomarkers. A total of 89 positive patch-test reaction biopsies against four contact allergens and two irritants were analyzed via microarray. Coexpression network analysis and Random Forest classification were used to discover potential biomarkers and selected biomarker models were validated in an independent patient group. Differential gene-expression analysis identified major gene-expression changes depending on the stimulus. Random Forest classification identified CD47, BATF, FASLG, RGS16, SYNPO, SELE, PTPN7, WARS, PRC1, EXO1, RRM2, PBK, RAD54L, KIFC1, SPC25, PKMYT, HISTH1A, TPX2, DLGAP5, TPX2, CH25H, and IL37 as potential biomarkers to distinguish allergic and irritant contact dermatitis in human skin. Validation experiments and prediction performances on external testing datasets demonstrated potential applicability of the identified biomarker models in the clinic. Capitalizing on this knowledge, novel diagnostic tools can be developed to guide clinical diagnosis of contact allergies.
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13
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Hachim MY, Elemam NM, Ramakrishnan RK, Salameh L, Olivenstein R, Hachim IY, Venkatachalam T, Mahboub B, Al Heialy S, Halwani R, Hamid Q, Hamoudi R. Blood and Salivary Amphiregulin Levels as Biomarkers for Asthma. Front Med (Lausanne) 2020; 7:561866. [PMID: 33195308 PMCID: PMC7659399 DOI: 10.3389/fmed.2020.561866] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 09/11/2020] [Indexed: 02/06/2023] Open
Abstract
Background: Amphiregulin (AREG) expression in asthmatic airways and sputum was shown to increase and correlate with asthma. However, no studies were carried out to evaluate the AREG level in blood and saliva of asthmatic patients. Objective: To measure circulating AREG mRNA and protein concentrations in blood, saliva, and bronchial biopsies samples from asthmatic patients. Methods: Plasma and Saliva AREG protein concentrations were measured using ELISA while PBMCs, and Saliva mRNA expression was measured by RT qPCR in non-severe, and severe asthmatic patients compared to healthy controls. Primary asthmatic bronchial epithelial cells and fibroblasts were assessed for AREG mRNA expression and released soluble AREG in their conditioned media. Tissue expression of AREG was evaluated using immunohistochemistry of bronchial biopsies from asthmatic patients and healthy controls. Publicly available transcriptomic databases were explored for the global transcriptomic profile of bronchial epithelium, and PBMCs were explored for AREG expression in asthmatic vs. healthy controls. Results: Asthmatic patients had higher AREG protein levels in blood and saliva compared to control subjects. Higher mRNA expression in saliva and primary bronchial epithelial cells plus higher AREG immunoreactivity in bronchial biopsies were also observed. Both blood and saliva AREG levels showed positive correlations with allergic rhinitis status, atopy status, eczema status, plasma periostin, neutrophilia, Montelukast sodium use, ACT score, FEV1, and FEV1/FVC. In silico analysis showed that severe asthmatic bronchial epithelium with high AREG gene expression is associated with higher neutrophils infiltration. Conclusion: AREG levels measured in a minimally invasive blood sample and a non-invasive saliva sample are higher in non-allergic severe asthma. CLINICAL IMPLICATIONS This is the first report to show the higher level of AREG levels in blood and saliva of non-allergic severe asthma.
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Affiliation(s)
- Mahmood Yaseen Hachim
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Noha Mousaad Elemam
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Rakhee K. Ramakrishnan
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Laila Salameh
- Rashid Hospital, Dubai Health Authority, Dubai, United Arab Emirates
| | | | - Ibrahim Yaseen Hachim
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Thenmozhi Venkatachalam
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Bassam Mahboub
- Rashid Hospital, Dubai Health Authority, Dubai, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Saba Al Heialy
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
- Meakins-Christie Laboratories, McGill University, Montreal, QC, Canada
| | - Rabih Halwani
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Qutayba Hamid
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Meakins-Christie Laboratories, McGill University, Montreal, QC, Canada
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Rifat Hamoudi
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Division of Surgery and Interventional Science, UCL, London, United Kingdom
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14
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Schwartz DM, Farley TK, Richoz N, Yao C, Shih HY, Petermann F, Zhang Y, Sun HW, Hayes E, Mikami Y, Jiang K, Davis FP, Kanno Y, Milner JD, Siegel R, Laurence A, Meylan F, O'Shea JJ. Retinoic Acid Receptor Alpha Represses a Th9 Transcriptional and Epigenomic Program to Reduce Allergic Pathology. Immunity 2019; 50:106-120.e10. [PMID: 30650370 DOI: 10.1016/j.immuni.2018.12.014] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 09/20/2018] [Accepted: 12/12/2018] [Indexed: 12/21/2022]
Abstract
CD4+ T helper (Th) differentiation is regulated by diverse inputs, including the vitamin A metabolite retinoic acid (RA). RA acts through its receptor RARα to repress transcription of inflammatory cytokines, but is also essential for Th-mediated immunity, indicating complex effects of RA on Th specification and the outcome of the immune response. We examined the impact of RA on the genome-wide transcriptional response during Th differentiation to multiple subsets. RA effects were subset-selective and were most significant in Th9 cells. RA globally antagonized Th9-promoting transcription factors and inhibited Th9 differentiation. RA directly targeted the extended Il9 locus and broadly modified the Th9 epigenome through RARα. RA-RARα activity limited murine Th9-associated pulmonary inflammation, and human allergic inflammation was associated with reduced expression of RA target genes. Thus, repression of the Th9 program is a major function of RA-RARα signaling in Th differentiation, arguing for a role for RA in interleukin 9 (IL-9) related diseases.
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Affiliation(s)
- Daniella M Schwartz
- Molecular Immunology and Inflammation Branch, NIAMS, NIH, Rockville, MD 20892, USA; Genenetics and Pathogenesis of Allergy Section, Laboratory of Allergic Diseases, NIAID, NIH, Rockville, MD 20892, USA.
| | - Taylor K Farley
- Immunoregulation Section, Autoimmunity Branch, NIAMS, NIH, Rockville, MD 20892, USA; Metaorganism Immunity Section, Laboratory of Immune System Biology, NIAID, NIH, Rockville, MD 20892, USA
| | - Nathan Richoz
- Immunoregulation Section, Autoimmunity Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - Chen Yao
- Molecular Immunology and Inflammation Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - Han-Yu Shih
- Molecular Immunology and Inflammation Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - Franziska Petermann
- Molecular Immunology and Inflammation Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - Yuan Zhang
- Genenetics and Pathogenesis of Allergy Section, Laboratory of Allergic Diseases, NIAID, NIH, Rockville, MD 20892, USA
| | - Hong-Wei Sun
- Office of Science and Technology, NIAMS, NIH, Rockville, MD 20892, USA
| | - Erika Hayes
- Immunoregulation Section, Autoimmunity Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - Yohei Mikami
- Molecular Immunology and Inflammation Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - Kan Jiang
- Molecular Immunology and Inflammation Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - Fred P Davis
- Molecular Immunology and Inflammation Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - Yuka Kanno
- Molecular Immunology and Inflammation Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - Joshua D Milner
- Genenetics and Pathogenesis of Allergy Section, Laboratory of Allergic Diseases, NIAID, NIH, Rockville, MD 20892, USA
| | - Richard Siegel
- Immunoregulation Section, Autoimmunity Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - Arian Laurence
- Translational Gastroenterology Unit, Experimental Medicine Division, John Radcliffe Hospital, University of Oxford, UK
| | - Françoise Meylan
- Immunoregulation Section, Autoimmunity Branch, NIAMS, NIH, Rockville, MD 20892, USA
| | - John J O'Shea
- Molecular Immunology and Inflammation Branch, NIAMS, NIH, Rockville, MD 20892, USA
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15
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van der Vorst EPC, Donners MMPC. ADAM8 in the cardiovascular system: An innocent bystander with clinical use? Atherosclerosis 2019; 286:147-149. [PMID: 31003630 DOI: 10.1016/j.atherosclerosis.2019.04.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 04/03/2019] [Indexed: 10/27/2022]
Affiliation(s)
- Emiel P C van der Vorst
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich, Munich, Germany; Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, the Netherlands; Institute for Molecular Cardiovascular Research (IMCAR) / Interdisciplinary Center for Clinical Research (IZKF), RWTH Aachen University, Aachen, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany.
| | - Marjo M P C Donners
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, the Netherlands
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16
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ADAM8 in invasive cancers: links to tumor progression, metastasis, and chemoresistance. Clin Sci (Lond) 2019; 133:83-99. [PMID: 30635388 DOI: 10.1042/cs20180906] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 11/27/2018] [Accepted: 12/05/2018] [Indexed: 12/26/2022]
Abstract
Ectodomain shedding of extracellular and membrane proteins is of fundamental importance for cell-cell communication in neoplasias. A Disintegrin And Metalloproteinase (ADAM) proteases constitute a family of multifunctional, membrane-bound proteins with traditional sheddase functions. Their protumorigenic potential has been attributed to both, essential (ADAM10 and ADAM17) and 'dispensable' ADAM proteases (ADAM8, 9, 12, 15, and 19). Of specific interest in this review is the ADAM proteinase ADAM8 that has been identified as a significant player in aggressive malignancies including breast, pancreatic, and brain cancer. High expression levels of ADAM8 are associated with invasiveness and predict a poor patient outcome, indicating a prognostic and diagnostic potential of ADAM8. Current knowledge of substrates and interaction partners gave rise to the hypothesis that ADAM8 dysregulation affects diverse processes in tumor biology, attributable to different functional cores of the multidomain enzyme. Proteolytic degradation of extracellular matrix (ECM) components, cleavage of cell surface proteins, and subsequent release of soluble ectodomains promote cancer progression via induction of angiogenesis and metastasis. Moreover, there is increasing evidence for significance of a non-proteolytic function of ADAM8. With the disintegrin (DIS) domain ADAM8 binds integrins such as β1 integrin, thereby activating integrin signaling pathways. The cytoplasmic domain is critical for that activation and involves focal adhesion kinase (FAK), extracellular regulated kinase (ERK1/2), and protein kinase B (AKT/PKB) signaling, further contributing to cancer progression and mediating chemoresistance against first-line therapies. This review highlights the remarkable effects of ADAM8 in tumor biology, concluding that pharmacological inhibition of ADAM8 represents a promising therapeutic approach not only for monotherapy, but also for combinatorial therapies.
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17
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18
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da Silva Antunes R, Mehta AK, Madge L, Tocker J, Croft M. TNFSF14 (LIGHT) Exhibits Inflammatory Activities in Lung Fibroblasts Complementary to IL-13 and TGF-β. Front Immunol 2018; 9:576. [PMID: 29616048 PMCID: PMC5868327 DOI: 10.3389/fimmu.2018.00576] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 03/07/2018] [Indexed: 12/21/2022] Open
Abstract
The cytokine TNFSF14 [homologous to Lymphotoxin, exhibits Inducible expression and competes with HSV Glycoprotein D for binding to HVEM, a receptor expressed on T lymphocytes (LIGHT)] has been shown in mouse models to be important for development of lung tissue remodeling that is characteristic of asthma, idiopathic pulmonary fibrosis (IPF), and systemic sclerosis (SSc). However, its cellular targets are not fully delineated. In the present report, we show that LTβR and HVEM, the receptors for LIGHT, are constitutively expressed in primary human lung fibroblasts (HLFs). We asked whether LIGHT could promote inflammatory and remodeling-relevant activity in HLFs and how this was similar to, or distinct from, IL-13 or TGF-β, two cytokines strongly implicated in the pathogenesis of asthma, IPF, and SSc. Accumulation of myofibroblasts expressing alpha smooth muscle actin is a feature of lung inflammatory diseases. LIGHT promoted cell cycle progression and proliferation of HLFs, but not alpha smooth muscle actin expression. In contrast, TGF-β upregulated alpha smooth muscle actin but did not drive their proliferation. LIGHT also increased the gene or protein expression of a number of proinflammatory mediators, including ICAM-1 and VCAM-1, IL-6 and GM-CSF, the chemokines CCL5 and 20, and CXCL5, 11, and 12, and lung remodeling-associated proteinases MMP-9 and ADAM8. These were dependent on LTβR but not HVEM. LIGHT displayed overlapping and synergistic activities with IL-13 for a number of the activities, but LIGHT additionally enhanced the gene expression of several molecules, including the innate cytokines IL-33 and TSLP, which were not upregulated by IL-13. Our results highlight the varied and pleiotropic effects of LIGHT in HLFs. LIGHT might then be a therapeutic target for modulation of inflammation and remodeling associated with asthma and other similar diseases of the lung that involve fibroblasts.
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Affiliation(s)
- Ricardo da Silva Antunes
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, United States
| | - Amit K Mehta
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, United States
| | - Lisa Madge
- Janssen Research and Development, LLC, Immunology Discovery Research, Spring House, PA, United States
| | - Joel Tocker
- Janssen Research and Development, LLC, Immunology Discovery Research, Spring House, PA, United States
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, United States.,Department of Medicine, University of California San Diego, La Jolla, CA, United States
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19
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Das S, Miller M, Broide DH. Chromosome 17q21 Genes ORMDL3 and GSDMB in Asthma and Immune Diseases. Adv Immunol 2017; 135:1-52. [PMID: 28826527 DOI: 10.1016/bs.ai.2017.06.001] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chromosome 17q21 contains a cluster of genes including ORMDL3 and GSDMB, which have been highly linked to asthma in genome-wide association studies. ORMDL3 is localized to the endoplasmic reticulum and regulates downstream pathways including sphingolipids, metalloproteases, remodeling genes, and chemokines. ORMDL3 inhibits serine palmitoyl-CoA transferase, the rate-limiting enzyme for sphingolipid biosynthesis. In addition, ORMDL3 activates the ATF6α branch of the unfolded protein response which regulates SERCA2b and IL-6, pathways of potential importance to asthma. The SNP-linking chromosome 17q21 to asthma is associated with increased ORMDL3 and GSDMB expression. Mice expressing either increased levels of human ORMDL3, or human GSDMB, have an asthma phenotype characterized by increased airway responsiveness and increased airway remodeling (increased smooth muscle and fibrosis) in the absence of airway inflammation. GSDMB regulates expression of 5-LO and TGF-β1 which are known pathways involved in the pathogenesis of asthma. GSDMB is one of four members of the GSDM family (GSDMA, GSDMB, GSDMC, and GSDMD). GSDMD (located on chromosome 8q24 and not linked to asthma) has emerged as a key mediator of pyroptosis. GSDMD is a key component of the NLPR3 inflammasome and is required for its activation. GSDMD undergoes proteolytic cleavage by caspase-1 to release its N-terminal fragment, which in turn mediates pyroptosis and IL-1β secretion. Chromosome 17q21 has not only been linked to asthma but also to type 1 diabetes, inflammatory bowel disease, and primary biliary cirrhosis suggesting that future insights into the biology of genes located in this region will increase our understanding of these diseases.
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Affiliation(s)
- Sudipta Das
- University of California, San Diego, CA, United States
| | - Marina Miller
- University of California, San Diego, CA, United States
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20
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Human eosinophils constitutively express a unique serine protease, PRSS33. Allergol Int 2017; 66:463-471. [PMID: 28216055 DOI: 10.1016/j.alit.2017.01.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/12/2016] [Accepted: 12/15/2016] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Eosinophils play important roles in asthma, especially airway remodeling, by producing various granule proteins, chemical mediators, cytokines, chemokines and proteases. However, protease production by eosinophils is not fully understood. In the present study, we investigated the production of eosinophil-specific proteases/proteinases by transcriptome analysis. METHODS Human eosinophils and other cells were purified from peripheral blood by density gradient sedimentation and negative/positive selections using immunomagnetic beads. Protease/proteinase expression in eosinophils and release into the supernatant were evaluated by microarray analysis, qPCR, ELISA, flow cytometry and immunofluorescence staining before and after stimulation with eosinophil-activating cytokines and secretagogues. mRNAs for extracellular matrix proteins in human normal fibroblasts were measured by qPCR after exposure to recombinant protease serine 33 (PRSS33) protein (rPRSS33), created with a baculovirus system. RESULTS Human eosinophils expressed relatively high levels of mRNA for metalloproteinase 25 (MMP25), a disintegrin and metalloprotease 8 (ADAM8), ADAM10, ADAM19 and PRSS33. Expression of PRSS33 was the highest and eosinophil-specific. PRSS33 mRNA expression was not affected by eosinophil-activating cytokines. Immunofluorescence staining showed that PRSS33 was co-localized with an eosinophil granule protein. PRSS33 was not detected in the culture supernatant of eosinophils even after stimulation with secretagogues, but its cell surface expression was increased. rPRSS33 stimulation of human fibroblasts increased expression of collagen and fibronectin mRNAs, at least in part via protease-activated receptor-2 activation. CONCLUSIONS Activated eosinophils may induce fibroblast extracellular matrix protein synthesis via cell surface expression of PRSS33, which would at least partly explain eosinophils' role(s) in airway remodeling.
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21
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Chen JY, Lin CH, Chen BC. Hypoxia-induced ADAM 17 expression is mediated by RSK1-dependent C/EBPβ activation in human lung fibroblasts. Mol Immunol 2017. [PMID: 28646679 DOI: 10.1016/j.molimm.2017.06.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Hypoxia was identified as a mediator of lung fibrosis in patients with chronic obstructive asthma (COA). Overexpression of a disintegrin and metalloproteinase 17 (ADAM 17) and connective tissue growth factor (CTGF) leads to development of tissue fibrosis. However, the signaling pathway in hypoxia-induced ADAM 17 expression remains poorly defined. In this study, we investigated the roles that ribosomal S-6 kinase 1 (RSK1)/CCAAT/enhancer-binding protein β (C/EBPβ)-dependent ADAM 17 expression plays in hypoxia-induced CTGF expression in human lung fibroblasts. We observed that hypoxia caused increases in ADAM 17 expression and ADAM 17-luciferase activity in WI-38 cells. Hypoxia-induced CTGF-luciferase activity and CTGF expression were reduced in cells transfected with small interfering (si)RNA of ADAM 17 in WI-38 cells. Moreover, hypoxia-induced ADAM 17 expression was reduced by RSK1 siRNA and C/EBPβ siRNA. Hypoxia caused time-dependent increases in RSK1 phosphorylation at Thr359/Ser363. Exposure of cells to hypoxia resulted in increased C/EBPβ phosphorylation at Thr266 and C/EBPβ-luciferase activity in time-dependent manners, and these effects were suppressed by RSK1 siRNA. Hypoxia induced recruitment of C/EBPβ to the ADAM 17 promoter. Furthermore, CTGF-luciferase activity induced by hypoxia was attenuated by RSK1 siRNA and C/EBPβ siRNA. These results suggest that hypoxia instigates the RSK1-dependent C/EBPβ signaling pathway, which in turn initiates binding of C/EBPβ to the ADAM 17 promoter and ultimately induces ADAM 17 expression in human lung fibroblasts. Moreover, RSK1/C/EBPβ-dependent ADAM 17 expression is involved in hypoxia-induced CTGF expression. Our results suggest possible therapeutic approaches for treating hypoxia-mediated lung fibrosis in COA.
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Affiliation(s)
- Jing-Yun Chen
- Gradual Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chien-Huang Lin
- Gradual Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Bing-Chang Chen
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
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22
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Bernatchez E, Langlois A, Brassard J, Flamand N, Marsolais D, Blanchet MR. Hypersensitivity pneumonitis onset and severity is regulated by CD103 dendritic cell expression. PLoS One 2017. [PMID: 28628641 PMCID: PMC5476273 DOI: 10.1371/journal.pone.0179678] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background Pulmonary dendritic cells drive lung responses to foreign antigens, including Saccharopolyspora rectivirgula, a causative agent of hypersensitivity pneumonitis. While the airway inflammatory mechanisms involved in hypersensitivity pneumonitis are well described, the mechanisms leading to the break in homeostasis and hypersensitivity pneumonitis onset are not well-described, and could involve CD103+ dendritic cells, which are found at baseline and during inflammatory responses in the lung. However, recent demonstration of the ability of CD103+ dendritic cells to induce inflammatory responses starkly contrasts with their classically described role as regulatory cells. These discrepancies may be attributable to the lack of current information on the importance of CD103 expression and modulation on these cells during inflammatory episodes. Methods To verify the importance of CD103 expression in the regulation of hypersensitivity pneumonitis, wild-type and Cd103-/- mice were exposed intranasally to S. rectivirgula and airway inflammation was quantified. Surface expression of CD103 in response to S. rectivirgula exposure was studied and cell transfers were used to determine the relative importance of CD103 expression on dendritic cells and T cells in regulating the inflammation in hypersensitivity pneumonitis. Results Cd103-/- mice developed an exacerbated inflammatory response as early as 18h following S. rectivirgula exposure. CD103 expression on dendritic cells was downregulated quickly following S. rectivirgula exposure, and cell transfers demonstrated that CD103 expression on dendritic cells specifically (and not T cells) regulates the onset and severity of this response. Conclusion All in all, we demonstrate that CD103 expression by dendritic cells, but not T cells, is crucial for homeostasis maintenance and the regulation of the TH17 airway inflammatory response in hypersensitivity pneumonitis.
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Affiliation(s)
- Emilie Bernatchez
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec, Quebec, Canada
| | - Anick Langlois
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec, Quebec, Canada
| | - Julyanne Brassard
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec, Quebec, Canada
| | - Nicolas Flamand
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec, Quebec, Canada
| | - David Marsolais
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec, Quebec, Canada
| | - Marie-Renée Blanchet
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec, Quebec, Canada
- * E-mail:
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23
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Dreymueller D, Pruessmeyer J, Schumacher J, Fellendorf S, Hess FM, Seifert A, Babendreyer A, Bartsch JW, Ludwig A. The metalloproteinase ADAM8 promotes leukocyte recruitment in vitro and in acute lung inflammation. Am J Physiol Lung Cell Mol Physiol 2017; 313:L602-L614. [PMID: 28596294 DOI: 10.1152/ajplung.00444.2016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 06/02/2017] [Accepted: 06/02/2017] [Indexed: 12/20/2022] Open
Abstract
Alveolar leukocyte recruitment is a hallmark of acute lung inflammation and involves transmigration of leukocytes through endothelial and epithelial layers. The disintegrin and metalloproteinase (ADAM) 8 is expressed on human isolated leukocytic cells and can be further upregulated on cultured endothelial and epithelial cells by proinflammatory cytokines. By shRNA-mediated knockdown we show that leukocytic ADAM8 is required on monocytic THP-1 cells for chemokine-induced chemotaxis as well as transendothelial and transepithelial migration. Furthermore, ADAM8 promotes αL-integrin upregulation and THP-1 cell adhesion to endothelial cells. On endothelial cells ADAM8 enhances transendothelial migration and increases cytokine-induced permeability. On epithelial cells the protease facilitates migration in a wound closure assay but does not affect transepithelial leukocyte migration. Blood leukocytes and bone marrow-derived macrophages (BMDM) from ADAM8-deficient mice show suppressed chemotactic response. Intranasal application of LPS to mice is accompanied with ADAM8 upregulation in the lung. In this model of acute lung inflammation ADAM8-deficient mice are protected against leukocyte infiltration. Finally, transfer experiments of BMDM in mice indicate that ADAM8 exerts a promigratory function predominantly on leukocytes. Our study provides in vitro and in vivo evidence that ADAM8 on leukocytes holds a proinflammatory function in acute lung inflammation by promoting alveolar leukocyte recruitment.
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Affiliation(s)
- Daniela Dreymueller
- Institute of Pharmacology and Toxicology, RWTH Aachen University, Aachen, Germany; and
| | - Jessica Pruessmeyer
- Institute of Pharmacology and Toxicology, RWTH Aachen University, Aachen, Germany; and
| | - Julian Schumacher
- Institute of Pharmacology and Toxicology, RWTH Aachen University, Aachen, Germany; and
| | - Sandra Fellendorf
- Institute of Pharmacology and Toxicology, RWTH Aachen University, Aachen, Germany; and
| | - Franz Martin Hess
- Institute of Pharmacology and Toxicology, RWTH Aachen University, Aachen, Germany; and
| | - Anke Seifert
- Institute of Pharmacology and Toxicology, RWTH Aachen University, Aachen, Germany; and
| | - Aaron Babendreyer
- Institute of Pharmacology and Toxicology, RWTH Aachen University, Aachen, Germany; and
| | - Jörg W Bartsch
- Department of Neurosurgery, Philipps University Marburg, University Hospital Marburg, Marburg, Germany
| | - Andreas Ludwig
- Institute of Pharmacology and Toxicology, RWTH Aachen University, Aachen, Germany; and
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24
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Johansson MW, Khanna M, Bortnov V, Annis DS, Nguyen CL, Mosher DF. IL-5-stimulated eosinophils adherent to periostin undergo stereotypic morphological changes and ADAM8-dependent migration. Clin Exp Allergy 2017; 47:1263-1274. [PMID: 28378503 DOI: 10.1111/cea.12934] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/28/2017] [Accepted: 03/28/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND IL-5 causes suspended eosinophils to polarize with filamentous (F)-actin and granules at one pole and the nucleus in a specialized uropod, the "nucleopod," which is capped with P-selectin glycoprotein ligand-1 (PSGL-1). IL-5 enhances eosinophil adhesion and migration on periostin, an extracellular matrix protein upregulated in asthma by type 2 immunity mediators. OBJECTIVE Determine how the polarized morphology evolves to foster migration of IL-5-stimulated eosinophils on a surface coated with periostin. METHODS Blood eosinophils adhering to adsorbed periostin were imaged at different time points by fluorescent microscopy, and migration of eosinophils on periostin was assayed. RESULTS After 10 minutes in the presence of IL-5, adherent eosinophils were polarized with PSGL-1 at the nucleopod tip and F-actin distributed diffusely at the opposite end. After 30-60 minutes, the nucleopod had dissipated such that PSGL-1 was localized in a crescent or ring away from the cell periphery, and F-actin was found in podosome-like structures. The periostin layer, detected with monoclonal antibody Stiny-1, shown here to recognize the FAS1 4 module, was cleared in wide areas around adherent eosinophils. Clearance was attenuated by metalloproteinase inhibitors or antibodies to disintegrin metalloproteinase 8 (ADAM8), a major eosinophil metalloproteinase previously implicated in asthma pathogenesis. ADAM8 was not found in podosome-like structures, which are associated with proteolytic activity in other cell types. Instead, immunoblotting demonstrated proteoforms of ADAM8 that lack the cytoplasmic tail in the supernatant. Anti-ADAM8 inhibited migration of IL-5-stimulated eosinophils on periostin. CONCLUSIONS AND CLINICAL RELEVANCE Migrating IL-5-activated eosinophils on periostin exhibit loss of nucleopodal features and appearance of prominent podosomes along with clearance of the Stiny-1 periostin epitope. Migration and epitope clearance are both attenuated by inhibitors of ADAM8. We propose, therefore, that eosinophils remodel and migrate on periostin-rich extracellular matrix in the asthmatic airway in an ADAM8-dependent manner, making ADAM8 a possible therapeutic target.
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Affiliation(s)
- M W Johansson
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI, USA
| | - M Khanna
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI, USA
| | - V Bortnov
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI, USA
| | - D S Annis
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI, USA
| | - C L Nguyen
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI, USA
| | - D F Mosher
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI, USA.,Department of Medicine, University of Wisconsin, Madison, WI, USA
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25
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Fine Tuning Cell Migration by a Disintegrin and Metalloproteinases. Mediators Inflamm 2017; 2017:9621724. [PMID: 28260841 PMCID: PMC5316459 DOI: 10.1155/2017/9621724] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 12/22/2016] [Indexed: 02/07/2023] Open
Abstract
Cell migration is an instrumental process involved in organ development, tissue homeostasis, and various physiological processes and also in numerous pathologies. Both basic cell migration and migration towards chemotactic stimulus consist of changes in cell polarity and cytoskeletal rearrangement, cell detachment from, invasion through, and reattachment to their neighboring cells, and numerous interactions with the extracellular matrix. The different steps of immune cell, tissue cell, or cancer cell migration are tightly coordinated in time and place by growth factors, cytokines/chemokines, adhesion molecules, and receptors for these ligands. This review describes how a disintegrin and metalloproteinases interfere with several steps of cell migration, either by proteolytic cleavage of such molecules or by functions independent of proteolytic activity.
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26
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Chen J, Deng L, Dreymüller D, Jiang X, Long J, Duan Y, Wang Y, Luo M, Lin F, Mao L, Müller B, Koller G, Bartsch JW. A novel peptide ADAM8 inhibitor attenuates bronchial hyperresponsiveness and Th2 cytokine mediated inflammation of murine asthmatic models. Sci Rep 2016; 6:30451. [PMID: 27458083 PMCID: PMC4960557 DOI: 10.1038/srep30451] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 07/06/2016] [Indexed: 12/31/2022] Open
Abstract
A disintegrin and metalloproteinase 8 (ADAM8) has been identified as a signature gene associated with moderate and severe asthma. Studies in mice have demonstrated that the severity of asthma can be reduced by either transgenic knock-out or by antibodies blocking ADAM8 function, highlighting ADAM8 as potential drug target for asthma therapy. Here, we examined the therapeutic effect of an ADAM8 inhibitor peptide (BK-1361) that specifically blocks cellular ADAM8 activity in ovalbumin-sensitized and challenged Balb/c mice. We found that BK-1361 (25 μg/g body weight) attenuated airway responsiveness to methacholine stimulation by up to 42%, concomitantly reduced tissue remodeling by 50%, and decreased inflammatory cells (e.g. eosinophils down by 54%)/inflammatory factors (e.g. sCD23 down by 50%)/TH2 cytokines (e.g. IL-5 down by 70%)/ADAM8-positive eosinophils (down by 60%) in the lung. We further verified that BK-1361 specifically targets ADAM8 in vivo as the peptide caused significantly reduced levels of soluble CD23 in wild-type but not in ADAM8-deficient mice. These findings suggest that BK-1361 blocks ADAM8-dependent asthma effects in vivo by inhibiting infiltration of eosinophils and TH2 lymphocytes, thus leading to reduction of TH2-mediated inflammation, tissue remodeling and bronchial hyperresponsiveness. Taken together, pharmacological ADAM8 inhibition appears as promising novel therapeutic strategy for the treatment of asthma.
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Affiliation(s)
- Jun Chen
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou, Jiangsu, China.,Key Lab of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China
| | - Linhong Deng
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou, Jiangsu, China.,Key Lab of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China
| | - Daniela Dreymüller
- Institute of Pharmacology and Toxicology, RWTH Aachen University, Wendlingweg 2, 52074 Aachen, Germany
| | - Xuemei Jiang
- Key Lab of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China
| | - Jiaoyue Long
- Key Lab of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China
| | - Yiyuan Duan
- Key Lab of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China
| | - Yue Wang
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou, Jiangsu, China
| | - Mingzhi Luo
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou, Jiangsu, China
| | - Feng Lin
- Key Lab of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, China
| | - Lizhen Mao
- Jiangsu Asialand Bio-med Technology Co. Ltd., Changzhou, Jiangsu, China
| | - Bernd Müller
- Laboratory of Respiratory Cell Biology, Division of Pneumology, Philipps-University Marburg, Marburg, Germany
| | - Garrit Koller
- KCLDI Biomaterials, Biomimetics and Biophotonics Group. King's College London, London SE1 9RT, United Kingdom.,Department of Neurosurgery, Philipps-University Marburg, Baldinger Str., 35033 Marburg, Germany
| | - Jörg W Bartsch
- Department of Neurosurgery, Philipps-University Marburg, Baldinger Str., 35033 Marburg, Germany
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27
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Dreymueller D, Ludwig A. Considerations on inhibition approaches for proinflammatory functions of ADAM proteases. Platelets 2016; 28:354-361. [PMID: 27460023 DOI: 10.1080/09537104.2016.1203396] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Proteases of the disintegrin and metalloproteinase (ADAM) family mediate the proteolytic shedding of various surface molecules including cytokine precursors, adhesion molecules, growth factors, and receptors. Within the vasculature ADAM10 and ADAM17 regulate endothelial permeability, transendothelial leukocyte migration, and the adhesion of leukocytes and platelets. In vivo studies show that both proteases are implicated in several inflammatory pathologies, for example, edema formation, leukocyte infiltration, and thrombosis. However, both proteases also contribute to developmental and regenerative processes. Thus, although ADAMs can be regarded as valuable drug targets in many aspects, the danger of severe side effects is clearly visible. To circumvent these side effects, traditional inhibition approaches have to be improved to target ADAMs at the right time in the right place. Moreover, the inhibitors need to be more selective for the target protease and if possible also for the substrate. Antibodies recognizing the active conformation of ADAMs or small molecules blocking exosites of ADAM proteases may represent inhibitors with the desired selectivities.
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Affiliation(s)
- Daniela Dreymueller
- a Institute of Pharmacology and Toxicology , RWTH Aachen University , Aachen , Germany
| | - Andreas Ludwig
- a Institute of Pharmacology and Toxicology , RWTH Aachen University , Aachen , Germany
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28
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Davies ER, Kelly JFC, Howarth PH, Wilson DI, Holgate ST, Davies DE, Whitsett JA, Haitchi HM. Soluble ADAM33 initiates airway remodeling to promote susceptibility for allergic asthma in early life. JCI Insight 2016; 1. [PMID: 27489884 PMCID: PMC4968941 DOI: 10.1172/jci.insight.87632] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Asthma is a chronic inflammatory airways disease that usually begins in early life and involves gene-environment interactions. Although most asthma exhibits allergic inflammation, many allergic individuals do not have asthma. Here, we report how the asthma gene a disintegrin and metalloprotease 33 (ADAM33) acts as local tissue susceptibility gene that promotes allergic asthma. We show that enzymatically active soluble ADAM33 (sADAM33) is increased in asthmatic airways and plays a role in airway remodeling, independent of inflammation. Furthermore, remodeling and inflammation are both suppressed in Adam33-null mice after allergen challenge. When induced in utero or added ex vivo, sADAM33 causes structural remodeling of the airways, which enhances postnatal airway eosinophilia and bronchial hyperresponsiveness following subthreshold challenge with an aeroallergen. This substantial gene-environment interaction helps to explain the end-organ expression of allergic asthma in genetically susceptible individuals. Finally, we show that sADAM33-induced airway remodeling is reversible, highlighting the therapeutic potential of targeting ADAM33 in asthma. Loss of ADAM33 suppresses airway remodeling and allergic inflammation in mice, suggesting the therapeutic potential of targeting ADAM33 in asthma.
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Affiliation(s)
- Elizabeth R Davies
- The Brooke Laboratory, Academic Unit of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.; Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Joanne F C Kelly
- The Brooke Laboratory, Academic Unit of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Peter H Howarth
- National Institute for Health Research (NIHR) Southampton Respiratory Biomedical Research Unit, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom.; Institute for Life Sciences, Stem Cells and Regeneration, Human Genetics, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - David I Wilson
- Institute for Life Sciences, Stem Cells and Regeneration, Human Genetics, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.; Centre for Human Development, Stem Cells and Regeneration, Human Genetics, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Stephen T Holgate
- National Institute for Health Research (NIHR) Southampton Respiratory Biomedical Research Unit, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom.; Institute for Life Sciences, Stem Cells and Regeneration, Human Genetics, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Donna E Davies
- The Brooke Laboratory, Academic Unit of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.; National Institute for Health Research (NIHR) Southampton Respiratory Biomedical Research Unit, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom.; Institute for Life Sciences, Stem Cells and Regeneration, Human Genetics, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Jeffrey A Whitsett
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Hans Michael Haitchi
- The Brooke Laboratory, Academic Unit of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.; Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.; National Institute for Health Research (NIHR) Southampton Respiratory Biomedical Research Unit, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom.; Institute for Life Sciences, Stem Cells and Regeneration, Human Genetics, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
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29
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Ambrosino N, Casaburi R, Chetta A, Clini E, Donner CF, Dreher M, Goldstein R, Jubran A, Nici L, Owen CA, Rochester C, Tobin MJ, Vagheggini G, Vitacca M, ZuWallack R. 8th international conference on management and rehabilitation of chronic respiratory failure: the long summaries – part 1. Multidiscip Respir Med 2015. [PMCID: PMC4595244 DOI: 10.1186/s40248-015-0026-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
This paper summarizes the Part 1 of the proceedings of the 8th International Conference on Management and Rehabilitation of Chronic Respiratory Failure, held in Pescara, Italy, on 7 and 8 May, 2015. It summarizes the contributions from numerous experts in the field of chronic respiratory disease and chronic respiratory failure. The outline follows the temporal sequence of presentations. This paper (Part 1) includes sections regarding: Advances in Asthma and COPD Therapy (Novel Therapeutic Targets for Asthma: Proteinases, Blood Biomarker Changes in COPD Patients); The problem of Hospital Re-Admission following Discharge after the COPD Exacerbation (Characteristics of the Hospitalized COPD Patient, Reducing Hospital Readmissions Following COPD Exacerbation).
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30
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da Silva Antunes R, Madge L, Soroosh P, Tocker J, Croft M. The TNF Family Molecules LIGHT and Lymphotoxin αβ Induce a Distinct Steroid-Resistant Inflammatory Phenotype in Human Lung Epithelial Cells. THE JOURNAL OF IMMUNOLOGY 2015. [PMID: 26209626 DOI: 10.4049/jimmunol.1500356] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Lung epithelial cells are considered important sources of inflammatory molecules and extracellular matrix proteins that contribute to diseases such as asthma. Understanding the factors that stimulate epithelial cells may lead to new insights into controlling lung inflammation. This study sought to investigate the responsiveness of human lung epithelial cells to the TNF family molecules LIGHT and lymphotoxin αβ (LTαβ). Bronchial and alveolar epithelial cell lines, and primary human bronchial epithelial cells, were stimulated with LIGHT and LTαβ, and expression of inflammatory cytokines and chemokines and markers of epithelial-mesenchymal transition and fibrosis/remodeling was measured. LTβ receptor, the receptor shared by LIGHT and LTαβ, was constitutively expressed on all epithelial cells. Correspondingly, LIGHT and LTαβ strongly induced a limited but highly distinct set of inflammatory genes in all epithelial cells tested, namely the adhesion molecules ICAM-1 and VCAM-1; the chemokines CCL5, CCL20, CXCL1, CXCL3, CXCL5, and CXCL11; the cytokines IL-6, activin A and GM-CSF; and metalloproteinases matrix metalloproteinase-9 and a disintegrin and metalloproteinase domain-8. Importantly, induction of the majority of these inflammatory molecules was insensitive to the suppressive effects of the corticosteroid budesonide. LIGHT and LTαβ also moderately downregulated E-cadherin, a protein associated with maintaining epithelial integrity, but did not significantly drive production of extracellular matrix proteins or α-smooth muscle actin. Thus, LIGHT and LTαβ induce a distinct steroid-resistant inflammatory signature in airway epithelial cells via constitutively expressed LTβ receptor. These findings support our prior murine studies that suggested the receptors for LIGHT and LTαβ contribute to development of lung inflammation characteristic of asthma and idiopathic pulmonary fibrosis.
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Affiliation(s)
- Ricardo da Silva Antunes
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037
| | - Lisa Madge
- Janssen Research and Development, Immunology Discovery Research, Spring House, PA 19002; and
| | | | - Joel Tocker
- Janssen Research and Development, Immunology Discovery Research, Spring House, PA 19002; and
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037;
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31
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Methods in assessment of airway reactivity in mice. Methods Mol Biol 2015; 1220:521-7. [PMID: 25388272 DOI: 10.1007/978-1-4939-1568-2_32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Due to the wealth of reagents and transgenic strains available, mice have become one of the most commonly used model organisms for the study of allergic airway inflammation. One of the major hallmarks of the asthma phenotype in humans is reversible airflow obstruction, or airway hyper-responsiveness. However, the ability to confidently obtain useful physiological responses from such a small animal has presented a large technological challenge in murine studies. Recent advances have provided the technology to obtain lung mechanics through either the forced oscillation technique or plethysmography. Here we describe the utility of these measurements in mouse models of allergic airway inflammation and anaphylaxis.
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32
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Bernatchez E, Gold MJ, Langlois A, Lemay AM, Brassard J, Flamand N, Marsolais D, McNagny KM, Blanchet MR. Pulmonary CD103 expression regulates airway inflammation in asthma. Am J Physiol Lung Cell Mol Physiol 2015; 308:L816-26. [PMID: 25681437 DOI: 10.1152/ajplung.00319.2014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 02/11/2015] [Indexed: 12/31/2022] Open
Abstract
Although CD103(+) cells recently emerged as key regulatory cells in the gut, the role of CD103 ubiquitous expression in the lung and development of allergic airway disease has never been studied. To answer this important question, we evaluated the response of Cd103(-/-) mice in two separate well-described mouse models of asthma (ovalbumin and house dust mite extract). Pulmonary inflammation was assessed by analysis of bronchoalveolar lavage content, histology, and cytokine response. CD103 expression was analyzed on lung dendritic cells and T cell subsets by flow cytometry. Cd103(-/-) mice exposed to antigens developed exacerbated lung inflammation, characterized by increased eosinophilic infiltration, severe tissue inflammation, and altered cytokine response. In wild-type mice exposed to house dust mite, CD103(+) dendritic cells are increased in the lung and an important subset of CD4(+) T cells, CD8(+) T cells, and T regulatory cells express CD103. Importantly, Cd103(-/-) mice presented a deficiency in the resolution phase of inflammation, which supports an important role for this molecule in the control of inflammation severity. These results suggest an important role for CD103 in the control of airway inflammation in asthma.
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Affiliation(s)
- Emilie Bernatchez
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada; and
| | - Matthew J Gold
- The Biomedical Research Center, University of British Columbia, Vancouver, BC, Canada
| | - Anick Langlois
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada; and
| | - Anne-Marie Lemay
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada; and
| | - Julyanne Brassard
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada; and
| | - Nicolas Flamand
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada; and
| | - David Marsolais
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada; and
| | - Kelly M McNagny
- The Biomedical Research Center, University of British Columbia, Vancouver, BC, Canada
| | - Marie-Renee Blanchet
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada; and
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33
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Nishimura D, Sakai H, Sato T, Sato F, Nishimura S, Toyama-Sorimachi N, Bartsch JW, Sehara-Fujisawa A. Roles of ADAM8 in elimination of injured muscle fibers prior to skeletal muscle regeneration. Mech Dev 2014; 135:58-67. [PMID: 25511460 DOI: 10.1016/j.mod.2014.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 12/03/2014] [Accepted: 12/04/2014] [Indexed: 11/15/2022]
Abstract
Skeletal muscle regeneration requires processes different from developmental myogenesis. One important difference is a requirement of inflammatory reactions prior to regenerative myogenesis, by which injured muscle fibers must be eliminated to make new myotubes. In this study, we show that efficient elimination of injured muscle fibers during regeneration requires ADAM8, a member of a disintegrin and metalloprotease (ADAM) family. Skeletal muscle of dystrophin-null mice, an animal model for Duchenne Muscular Dystrophy, deteriorates by the lack of ADAM8, which is characterized by increased area of muscle degeneration and increased number of necrotic and calcified muscle fibers. Adam8 is highly expressed in neutrophils. Upon cardiotoxin-induced skeletal muscle injury, neutrophils invade into muscle fibers through the basement membrane and form large clusters in wild type, but not in ADAM8-deficient mice, although neutrophils of the latter infiltrate into interstitial tissues similarly to those of wild type mice. Neutrophils lose their adhesiveness to blood vessels after infiltration, which includes an ectodomain shedding of P-Selectin Glycoprotein Ligand-1 (PSGL-1) on their surface. Expression of PSGL-1 on the surface of neutrophils remains higher in ADAM8-deficient than in wild type mice. These results suggest that ADAM8 mediates an enhanced invasiveness of neutrophils into injured muscle fibers by the removal of their adhesiveness to blood vessels after infiltration into interstitial tissues.
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Affiliation(s)
- Daigo Nishimura
- Department of Growth Regulation, Institute for Frontier Medical Sciences, Kyoto University, Kawahara-cho 53, Shogo-in, Kyoto 606-8507, Japan
| | - Hiroshi Sakai
- Department of Growth Regulation, Institute for Frontier Medical Sciences, Kyoto University, Kawahara-cho 53, Shogo-in, Kyoto 606-8507, Japan
| | - Takahiko Sato
- Department of Growth Regulation, Institute for Frontier Medical Sciences, Kyoto University, Kawahara-cho 53, Shogo-in, Kyoto 606-8507, Japan
| | - Fuminori Sato
- Department of Growth Regulation, Institute for Frontier Medical Sciences, Kyoto University, Kawahara-cho 53, Shogo-in, Kyoto 606-8507, Japan
| | - Satoshi Nishimura
- Department of Cell and Molecular Medicine, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Noriko Toyama-Sorimachi
- Department of Molecular Immunology and Inflammation, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Jörg W Bartsch
- Department of Neurosurgery/Lab, Philipps University Marburg, Baldingerstr., 35033 Marburg, Germany
| | - Atsuko Sehara-Fujisawa
- Department of Growth Regulation, Institute for Frontier Medical Sciences, Kyoto University, Kawahara-cho 53, Shogo-in, Kyoto 606-8507, Japan.
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Dreymueller D, Uhlig S, Ludwig A. ADAM-family metalloproteinases in lung inflammation: potential therapeutic targets. Am J Physiol Lung Cell Mol Physiol 2014; 308:L325-43. [PMID: 25480335 DOI: 10.1152/ajplung.00294.2014] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Acute and chronic lung inflammation is driven and controlled by several endogenous mediators that undergo proteolytic conversion from surface-expressed proteins to soluble variants by a disintegrin and metalloproteinase (ADAM)-family members. TNF and epidermal growth factor receptor ligands are just some of the many substrates by which these proteases regulate inflammatory or regenerative processes in the lung. ADAM10 and ADAM17 are the most prominent members of this protease family. They are constitutively expressed in most lung cells and, as recent research has shown, are the pivotal shedding enzymes mediating acute lung inflammation in a cell-specific manner. ADAM17 promotes endothelial and epithelial permeability, transendothelial leukocyte migration, and inflammatory mediator production by smooth muscle and epithelial cells. ADAM10 is critical for leukocyte migration and alveolar leukocyte recruitment. ADAM10 also promotes allergic asthma by driving B cell responses. Additionally, ADAM10 acts as a receptor for Staphylococcus aureus (S. aureus) α-toxin and is crucial for bacterial virulence. ADAM8, ADAM9, ADAM15, and ADAM33 are upregulated during acute or chronic lung inflammation, and recent functional or genetic analyses have linked them to disease development. Pharmacological inhibitors that allow us to locally or systemically target and differentiate ADAM-family members in the lung suppress acute and asthmatic inflammatory responses and S. aureus virulence. These promising results encourage further research to develop therapeutic strategies based on selected ADAMs. These studies need also to address the role of the ADAMs in repair and regeneration in the lung to identify further therapeutic opportunities and possible side effects.
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Affiliation(s)
- Daniela Dreymueller
- Institute of Pharmacology and Toxicology, Rheinisch-Westfälische Technische Hochschule Aachen University, Aachen, Germany
| | - Stefan Uhlig
- Institute of Pharmacology and Toxicology, Rheinisch-Westfälische Technische Hochschule Aachen University, Aachen, Germany
| | - Andreas Ludwig
- Institute of Pharmacology and Toxicology, Rheinisch-Westfälische Technische Hochschule Aachen University, Aachen, Germany
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Oreo KM, Gibson PG, Simpson JL, Wood LG, McDonald VM, Baines KJ. Sputum ADAM8 expression is increased in severe asthma and COPD. Clin Exp Allergy 2014; 44:342-52. [PMID: 24147597 DOI: 10.1111/cea.12223] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 10/02/2013] [Accepted: 10/07/2013] [Indexed: 01/13/2023]
Abstract
BACKGROUND Severe asthma and chronic obstructive pulmonary disease (COPD) are chronic inflammatory airway diseases in which the mechanisms are not fully understood. A disintegrin and metalloproteinase domain 8 (ADAM8) is an enzyme expressed on most leucocytes and may be important for facilitating leucocyte migration in respiratory disease. OBJECTIVE To investigate ADAM8 mRNA and protein expression in asthma and COPD and its relationship between asthma severity and inflammatory phenotypes. METHODS Induced sputum was collected from 113 subjects with asthma (severe n = 31, uncontrolled n = 39 and controlled n = 35), 20 subjects with COPD and 21 healthy controls. Sputum ADAM8 mRNA expression was measured by qPCR, and soluble ADAM8 (sADAM8) protein was measured in the sputum supernatant by validated ELISA. RESULTS ADAM8 mRNA correlated with ADAM8 protein levels (r = 0.27, P < 0.01). ADAM8 mRNA (P = 0.004) and sADAM8 protein (P = 0.014) levels were significantly higher in both asthma and COPD compared with healthy controls. ADAM8 mRNA (P = 0.035) and sADAM8 protein (P = 0.002) levels were significantly higher in severe asthma compared with controlled asthma. Total inflammatory cell count (P < 0.01) and neutrophils (P < 0.01) were also elevated in severe asthmatic sputum. Although ADAM8 mRNA was significantly higher in eosinophilic and neutrophilic asthma (P < 0.001), sADAM8 did not differ between asthma inflammatory phenotypes. ADAM8 expression positively correlated with sputum total cell count and sputum neutrophils. CONCLUSIONS AND CLINICAL RELEVANCE ADAM8 expression is increased in both severe asthma and COPD and associated with sputum total cell count and neutrophils. ADAM8 may facilitate neutrophil migration to the airways in severe asthma and COPD.
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Affiliation(s)
- K M Oreo
- Virus Infections/Immunity Vaccines & Asthma, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia; Priority Research Centre for Asthma and Respiratory Diseases, The University of Newcastle, Callaghan, NSW, Australia; Severe Asthma Network, Woolcock Institute of Medical Research, Glebe, NSW, Australia; The University of Sydney, Camperdown/Darlington, NSW, Australia
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Miller M, Rosenthal P, Beppu A, Mueller JL, Hoffman HM, Tam AB, Doherty TA, McGeough MD, Pena CA, Suzukawa M, Niwa M, Broide DH. ORMDL3 transgenic mice have increased airway remodeling and airway responsiveness characteristic of asthma. THE JOURNAL OF IMMUNOLOGY 2014; 192:3475-87. [PMID: 24623133 DOI: 10.4049/jimmunol.1303047] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Orosomucoid-like (ORMDL)3 has been strongly linked with asthma in genetic association studies. Because allergen challenge induces lung ORMDL3 expression in wild-type mice, we have generated human ORMDL3 zona pellucida 3 Cre (hORMDL3(zp3-Cre)) mice that overexpress human ORMDL3 universally to investigate the role of ORMDL3 in regulating airway inflammation and remodeling. These hORMDL3(zp3-Cre) mice have significantly increased levels of airway remodeling, including increased airway smooth muscle, subepithelial fibrosis, and mucus. hORMDL3(zp3-Cre) mice had spontaneously increased airway responsiveness to methacholine compared to wild-type mice. This increased airway remodeling was associated with selective activation of the unfolded protein response pathway transcription factor ATF6 (but not Ire1 or PERK). The ATF6 target gene SERCA2b, implicated in airway remodeling in asthma, was strongly induced in the lungs of hORMDL3(zp3-Cre) mice. Additionally, increased levels of expression of genes associated with airway remodeling (TGF-β1, ADAM8) were detected in airway epithelium of these mice. Increased levels of airway remodeling preceded increased levels of airway inflammation in hORMDL3(zp3-Cre) mice. hORMDL3(zp3-Cre) mice had increased levels of IgE, with no change in levels of IgG, IgM, and IgA. These studies provide evidence that ORMDL3 plays an important role in vivo in airway remodeling potentially through ATF6 target genes such as SERCA2b and/or through ATF6-independent genes (TGF-β1, ADAM8).
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Affiliation(s)
- Marina Miller
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093
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Chen J, Jiang X, Duan Y, Long J, Bartsch JW, Deng L. ADAM8 in asthma. Friend or foe to airway inflammation? Am J Respir Cell Mol Biol 2014; 49:875-84. [PMID: 23837412 DOI: 10.1165/rcmb.2013-0168tr] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Airway inflammation has been suggested as the pathological basis in asthma pathogenesis. Recruitment of leukocytes from the vasculature into airway sites is essential for induction of airway inflammation, a process thought to be mediated by a disintegrin and metalloprotease 8 (ADAM8). However, there is an apparent controversy about whether ADAM8 helps or hampers transmigration of leukocytes through endothelium in airway inflammation of asthma. This review outlines the current contradictory concepts concerning the role of ADAM8 in airway inflammation, particularly focusing on the recruitment of leukocytes during asthma, and attempts to bridge the existing experimental data on the basis of the functional analysis of different domains of ADAM8 and their endogenous processing in vivo. We suggest a possible hypothesis for the specific mechanism by which ADAM8 regulates the transmigration of leukocytes to explain the disparity existing in current studies, and we also raise some questions that require future investigations.
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Affiliation(s)
- Jun Chen
- 1 Key Lab of Biorheological Science and Technology, Ministry of Education, "National 985 Project" Institute of Biorheology and Gene Regulation, Bioengineering College, Chongqing University, Chongqing, P.R. China
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Abstract
Eosinophilia is a hallmark of allergic airway inflammation, and eosinophils represent an integral effector leukocyte through their release of various granule-stored cytokines and proteins. Numerous mouse models have been developed to mimic clinical disease and they have been instrumental in furthering our understanding of the role of eosinophils in disease. Most of these models consist of intranasal (i.n.) administration of antigenic proteases including papain and house dust mite (HDM) or the neo-antigen ovalbumin, with a resulting Th2-biased immune response and airway eosinophilia. These models have been particularly informative when combined with the numerous transgenic mice available that modulate eosinophil frequency or the mechanisms involved in their migration. Here, we describe the current models or allergic airway inflammation and outline some of the transgenic mice available to study eosinophils in disease.
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Affiliation(s)
- Marie-Renée Blanchet
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, Canada, G1V 4G5,
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Fischer KD, Agrawal DK. Hematopoietic stem and progenitor cells in inflammation and allergy. Front Immunol 2013; 4:428. [PMID: 24363657 PMCID: PMC3849597 DOI: 10.3389/fimmu.2013.00428] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 11/20/2013] [Indexed: 11/13/2022] Open
Abstract
Hematopoietic stem and progenitor cells contribute to allergic inflammation. Pro-inflammatory cytokines that are generated following allergen challenge can impact the differentiation of hematopoietic progenitor cells leading to increased production of effector cells such as eosinophils and basophils, which are key cells involved in the pathogenesis of allergic airway inflammation. Homing of stem cells to the lungs is associated with inflammatory and remodeling changes in asthmatics. Factors that modulate the differentiation and increased migration of stem cells to the site of inflammation in asthma remain to be defined. Stem cells can mature at the site of inflammation in response to inflammatory mediators and other components in the milieu. While the available data suggest that hematopoietic cells traffic to target tissues, the molecular factors underlying in situ differentiation have yet to be specified. Here, we critically evaluate the potential role of hematopoietic progenitors in contributing to the increased immune cell infiltrate in allergic asthma and the factors that drive their differentiation.
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Affiliation(s)
- Kimberly D Fischer
- Department of Medical Microbiology and Immunology, Creighton University School of Medicine , Omaha, NE , USA
| | - Devendra K Agrawal
- Department of Medical Microbiology and Immunology, Creighton University School of Medicine , Omaha, NE , USA ; Department of Biomedical Sciences, Creighton University School of Medicine , Omaha, NE , USA ; Department of Internal Medicine, Creighton University School of Medicine , Omaha, NE , USA ; Center for Clinical and Translational Science, Creighton University School of Medicine , Omaha, NE , USA
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Yuan S, Lei S, Wu S. ADAM10 is overexpressed in human hepatocellular carcinoma and contributes to the proliferation, invasion and migration of HepG2 cells. Oncol Rep 2013; 30:1715-22. [PMID: 23912592 DOI: 10.3892/or.2013.2650] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Accepted: 07/01/2013] [Indexed: 11/05/2022] Open
Abstract
The overexpression of A disintegrin and metalloproteinase 10 (ADAM10) has been found to be closely associated with the development and progression of various types of tumors. However, ADAM10 expression in hepatocellular carcinoma (HCC) and its significance remain largely unknown. The present study aimed to investigate the expression of ADAM10 in human HCC and the effect of ADAM10 gene silencing by siRNA on the proliferation, invasion and migration of HepG2 human hepatoma cells. Immunohistochemistry was performed to examine the expression of ADAM10 in human HCC tissues and in the adjacent non-cancer tissues from 30 patients with HCC. RNA interference was used to knock down ADAM10 expression in HepG2 human hepatoma cells and the proliferation and migration as well as the invasive ability of the treated cells were observed in vitro. The expression of ADAM10 protein in HCC tissues was significantly higher when compared to that in adjacent non-tumor tissues (P<0.05). The high expression of ADAM10 in cancer was significantly correlated with clinical outcomes (P<0.05). Silencing of ADAM10 resulted in inhibition of proliferation and migration as well as invasion of HepG2 human hepatoma cells (P<0.05). These studies suggest that ADAM10 plays an important role in regulating proliferation, invasion and migration of HepG2 cells. High expression of ADAM10 may be a valuable predictive factor for HCC prognosis, and ADAM10 is potentially an important therapeutic target for the prevention of tumor development and progression in HCC.
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Affiliation(s)
- Shao Yuan
- Department of Otorhinolaryngology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Knolle MD, Nakajima T, Hergrueter A, Gupta K, Polverino F, Craig VJ, Fyfe SE, Zahid M, Permaul P, Cernadas M, Montano G, Tesfaigzi Y, Sholl L, Kobzik L, Israel E, Owen CA. Adam8 limits the development of allergic airway inflammation in mice. THE JOURNAL OF IMMUNOLOGY 2013; 190:6434-49. [PMID: 23670189 DOI: 10.4049/jimmunol.1202329] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
To determine whether a disintegrin and metalloproteinase-8 (Adam8) regulates allergic airway inflammation (AAI) and airway hyperresponsiveness (AHR), we compared AAI and AHR in wild-type (WT) versus Adam8(-/-) mice in different genetic backgrounds sensitized and challenged with OVA or house dust mite protein extract. OVA- and house dust mite-treated Adam8(-/-) mice had higher lung leukocyte counts, more airway mucus metaplasia, greater lung levels of some Th2 cytokines, and higher methacholine-induced increases in central airway resistance than allergen-treated WT mice. Studies of OVA-treated Adam8 bone marrow chimeric mice confirmed that leukocyte-derived Adam8 predominantly mediated Adam8's anti-inflammatory activities in murine airways. Airway eosinophils and macrophages both expressed Adam8 in WT mice with AAI. Adam8 limited AAI and AHR in mice by reducing leukocyte survival because: 1) Adam8(-/-) mice with AAI had fewer apoptotic eosinophils and macrophages in their airways than WT mice with AAI; and 2) Adam8(-/-) macrophages and eosinophils had reduced rates of apoptosis compared with WT leukocytes when the intrinsic (but not the extrinsic) apoptosis pathway was triggered in the cells in vitro. ADAM8 was robustly expressed by airway granulocytes in lung sections from human asthma patients, but, surprisingly, airway macrophages had less ADAM8 staining than airway eosinophils. Thus, ADAM8 has anti-inflammatory activities during AAI in mice by activating the intrinsic apoptosis pathway in myeloid leukocytes. Strategies that increase ADAM8 levels in myeloid leukocytes may have therapeutic efficacy in asthma.
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Affiliation(s)
- Martin D Knolle
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
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Mouse models to evaluate the function of genes associated with allergic airway disease. Curr Opin Allergy Clin Immunol 2013; 12:467-74. [PMID: 22885889 DOI: 10.1097/aci.0b013e328357cc17] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE OF REVIEW In recent years, considerable effort has been invested in developing mouse models of allergic airway disease, as a means of evaluating the role of select genes in its pathophysiology. Here, we review the principal models used in this field, including models of allergic asthma and hypersensitivity pneumonitis. As an example of how these models can reveal novel functional roles for genes, we review our work showing a role for the stem-cell-associated gene, Cd34. Through this example, we illustrate the genetic and immunological strategies available in the field to better understand allergic airway inflammation. RECENT FINDINGS CD34 was found to play an important role in the development of two different models of allergic disease, that is, Th2-driven allergic asthma and Th17-driven hypersensitivity pneumonitis. Using a combination of genetically modified mice as well as cell transfers and chimeric mice, we showed that CD34 is important for the efficient trafficking of hematopoietic subsets into and out of the lung, including mast cells, eosinophils and dendritic cells. SUMMARY The currently available array of mutant mice and animal models of allergic disease now offers an opportunity to make profound insights into these diseases and provide preclinical models for the development of therapeutics.
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Abstract
Proteolytic enzymes belonging to the A Disintegin And Metalloproteinase (ADAM) family are able to cleave transmembrane proteins close to the cell surface, in a process referred to as ectodomain shedding. Substrates for ADAMs include growth factors, cytokines, chemokines and adhesion molecules, and, as such, many ADAM proteins play crucial roles in cell-cell adhesion, extracellular and intracellular signaling, cell differentiation and cell proliferation. In this Review, we summarize the fascinating roles of ADAMs in embryonic and adult tissue development in both vertebrates and invertebrates.
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Affiliation(s)
- Silvio Weber
- Heart Research Centre Göttingen, Universitaetsmedizin Göttingen, Department of Cardiology and Pneumology, Georg-August-University Göttingen, Germany
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ORMDL3 is an inducible lung epithelial gene regulating metalloproteases, chemokines, OAS, and ATF6. Proc Natl Acad Sci U S A 2012; 109:16648-53. [PMID: 23011799 DOI: 10.1073/pnas.1204151109] [Citation(s) in RCA: 160] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Orosomucoid like 3 (ORMDL3) has been strongly linked with asthma in genetic association studies, but its function in asthma is unknown. We demonstrate that in mice ORMDL3 is an allergen and cytokine (IL-4 or IL-13) inducible endoplasmic reticulum (ER) gene expressed predominantly in airway epithelial cells. Allergen challenge induces a 127-fold increase in ORMDL3 mRNA in bronchial epithelium in WT mice, with lesser 15-fold increases in ORMDL-2 and no changes in ORMDL-1. Studies of STAT-6-deficient mice demonstrated that ORMDL3 mRNA induction highly depends on STAT-6. Transfection of ORMDL3 in human bronchial epithelial cells in vitro induced expression of metalloproteases (MMP-9, ADAM-8), CC chemokines (CCL-20), CXC chemokines (IL-8, CXCL-10, CXCL-11), oligoadenylate synthetases (OAS) genes, and selectively activated activating transcription factor 6 (ATF6), an unfolded protein response (UPR) pathway transcription factor. siRNA knockdown of ATF-6α in lung epithelial cells inhibited expression of SERCA2b, which has been implicated in airway remodeling in asthma. In addition, transfection of ORMDL3 in lung epithelial cells activated ATF6α and induced SERCA2b. These studies provide evidence of the inducible nature of ORMDL3 ER expression in particular in bronchial epithelial cells and suggest an ER UPR pathway through which ORMDL3 may be linked to asthma.
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Paulissen G, El Hour M, Rocks N, Guéders MM, Bureau F, Foidart JM, Lopez-Otin C, Noel A, Cataldo DD. Control of allergen-induced inflammation and hyperresponsiveness by the metalloproteinase ADAMTS-12. THE JOURNAL OF IMMUNOLOGY 2012; 189:4135-43. [PMID: 22962682 DOI: 10.4049/jimmunol.1103739] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) constitute a family of endopeptidases related to matrix metalloproteinases. These proteinases have been largely implicated in tissue remodeling associated with pathological processes. Among them, ADAMTS12 was identified as an asthma-associated gene in a human genome screening program. However, its functional implication in asthma is not yet documented. The present study aims at investigating potential ADAMTS-12 functions in experimental models of allergic airways disease. Two different in vivo protocols of allergen-induced airways disease were applied to the recently generated Adamts12-deficient mice and corresponding wild-type mice. In this study, we provide evidence for a protective effect of ADAMTS-12 against bronchial inflammation and hyperresponsiveness. In the absence of Adamts12, challenge with different allergens (OVA and house dust mite) led to exacerbated eosinophilic inflammation in the bronchoalveolar lavage fluid and in lung tissue, along with airway dysfunction assessed by increased airway responsiveness following methacholine exposure. Furthermore, mast cell counts and ST2 receptor and IL-33 levels were higher in the lungs of allergen-challenged Adamts12-deficient mice. The present study provides, to our knowledge, the first experimental evidence for a contribution of ADAMTS-12 as a key mediator in airways disease, interfering with immunological processes leading to inflammation and airway hyperresponsiveness.
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Affiliation(s)
- Geneviève Paulissen
- Laboratory of Tumor and Developmental Biology, Interdisciplinary Group of Applied Genoproteomics-Cancer (GIGA-Cancer), University of Liège and University Hospital of Liège, 4000 Liège, Belgium
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Janssen-Heininger YM, Irvin CG, Scheller EV, Brown AL, Kolls JK, Alcorn JF. Airway Hyperresponsiveness and Inflammation: Causation, Correlation, or No Relation? ACTA ACUST UNITED AC 2012; 2012. [PMID: 23560246 DOI: 10.4172/2155-6121.s1-008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Asthma represents a growing problem in the developing world, affecting millions of children and adults. Features of the disease are reversible airflow obstruction, airway hyperresponsiveness and airway inflammation leading to tissue damage and remodeling. Many studies have attempted to address whether inflammation and airway hyperresponsiveness are mechanistically linked. In this study, data are presented from several mouse models that illustrate that a clear link between these features of asthma remains elusive. The impact of altering inflammatory signaling (NF-κB or JNK1) on inflammation and airway hyperresponsiveness was examined. In addition, the effect of antigen sensitization and the route of antigen delivery were investigated. The data herein show that in many cases, inflammation and airway hyperresponsiveness do not directly correlate. In conclusion, the need for mechanistic studies in mouse models is highlighted to address the interplay between these components thought to be critical to asthma pathogenesis.
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The role of ADAM-mediated shedding in vascular biology. Eur J Cell Biol 2011; 91:472-85. [PMID: 22138087 DOI: 10.1016/j.ejcb.2011.09.003] [Citation(s) in RCA: 167] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 07/08/2011] [Accepted: 09/08/2011] [Indexed: 01/14/2023] Open
Abstract
Within the vasculature the disintegrins and metalloproteinases (ADAMs) 8, 9, 10, 12, 15, 17, 19, 28 and 33 are expressed on endothelial cells, smooth muscle cells and on leukocytes. As surface-expressed proteases they mediate cleavage of vascular surface molecules at an extracellular site close to the membrane. This process is termed shedding and leads to the release of a soluble substrate ectodomain thereby critically modulating the biological function of the substrate. In the vasculature several surface molecules undergo ADAM-mediated shedding including tumour necrosis factor (TNF) α, interleukin (IL) 6 receptor α, L-selectin, vascular endothelial (VE)-cadherin, the transmembrane CX3C-chemokine ligand (CX3CL) 1, Notch, transforming growth factor (TGF) and heparin-binding epidermal growth factor (HB-EGF). These substrates play distinct roles in vascular biology by promoting inflammation, permeability changes, leukocyte recruitment, resolution of inflammation, regeneration and/or neovascularisation. Especially ADAM17 and ADAM10 are capable of cleaving many substrates with diverse function within the vasculature, whereas other ADAMs have a more restricted substrate range. Therefore, targeting ADAM17 or ADAM10 by pharmacologic inhibition or gene knockout not only attenuates the inflammatory response in animal models but also affects tissue regeneration and neovascularisation. Recent discoveries indicate that other ADAMs (e.g. ADAM8 and 9) also play important roles in vascular biology but appear to have more selective effects on vascular responses (e.g. on neovascularisation only). Although, targeting of ADAM17 and ADAM10 in inflammatory diseases is still a promising approach, temporal and spatial as well as substrate-specific inhibition approaches are required to minimise undesired side effects on vascular cells.
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Park IH, Choi SW, Choi H, Kim TH, Lee SH, Lee SH, Lee HM. Increased expression of a disintegrin and metalloprotease 8 in allergic rhinitis. Am J Rhinol Allergy 2011; 25:107-11. [PMID: 21679521 DOI: 10.2500/ajra.2011.25.3581] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND A disintegrin and metalloproteases (ADAMs) constitute a family of cell surface proteins containing disintegrin and metalloprotease domain, which associate features of adhesion molecules and proteases. ADAM8 is a member of the ADAM family and has recently been implicated to have a role in allergic lung inflammation. Therefore, our aims were to determine the expression of ADAM8 mRNA and protein and to localize ADAM8 protein in the nasal mucosa of patients with allergic rhinitis and control subjects. METHODS Inferior turbinate mucosa samples were obtained from 20 patients with allergic rhinitis and 20 matched healthy normal controls. ADAM8 mRNA was extracted from the inferior turbinate mucosa, and then reverse transcription-polymerase chain reaction was performed. Western blot testing was used to analyze differences in the level of ADAM8 protein expression between patients with allergic rhinitis and normal controls, and the ADAM8 protein was localized with immunohistochemical staining. RESULTS The level of expression of ADAM8 mRNA and protein in the nasal mucosa was significantly increased in patients with allergic rhinitis compared with normal controls. ADAM8 protein was expressed in the epithelium, infiltrating inflammatory cells, and submucosal glands. CONCLUSION ADAM8 is expressed in human nasal mucosa and is increased in patients with allergic rhinitis. These results suggest a possible contribution for ADAM8 in chronic inflammation of the nasal mucosa in patients with allergic rhinitis.
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Affiliation(s)
- Il-Ho Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Guro Hospital, Korea University College of Medicine, Seoul, South Korea
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Affiliation(s)
- Shamsah Kazani
- Department of Medicine, Pulmonary and Critical Care Division, Brigham and Women's Hospital, Boston, MA 02115, USA
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Moss ML, Powell G, Miller MA, Edwards L, Qi B, Sang QXA, De Strooper B, Tesseur I, Lichtenthaler SF, Taverna M, Zhong JL, Dingwall C, Ferdous T, Schlomann U, Zhou P, Griffith LG, Lauffenburger DA, Petrovich R, Bartsch JW. ADAM9 inhibition increases membrane activity of ADAM10 and controls α-secretase processing of amyloid precursor protein. J Biol Chem 2011; 286:40443-51. [PMID: 21956108 DOI: 10.1074/jbc.m111.280495] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Prodomains of A disintegrin and metalloproteinase (ADAM) metallopeptidases can act as highly specific intra- and intermolecular inhibitors of ADAM catalytic activity. The mouse ADAM9 prodomain (proA9; amino acids 24-204), expressed and characterized from Escherichia coli, is a competitive inhibitor of human ADAM9 catalytic/disintegrin domain with an overall inhibition constant of 280 ± 34 nM and high specificity toward ADAM9. In SY5Y neuroblastoma cells overexpressing amyloid precursor protein, proA9 treatment reduces the amount of endogenous ADAM10 enzyme in the medium while increasing membrane-bound ADAM10, as shown both by Western and activity assays with selective fluorescent peptide substrates using proteolytic activity matrix analysis. An increase in membrane-bound ADAM10 generates higher levels of soluble amyloid precursor protein α in the medium, whereas soluble amyloid precursor protein β levels are decreased, demonstrating that inhibition of ADAM9 increases α-secretase activity on the cell membrane. Quantification of physiological ADAM10 substrates by a proteomic approach revealed that substrates, such as epidermal growth factor (EGF), HER2, osteoactivin, and CD40-ligand, are increased in the medium of BT474 breast tumor cells that were incubated with proA9, demonstrating that the regulation of ADAM10 by ADAM9 applies for many ADAM10 substrates. Taken together, our results demonstrate that ADAM10 activity is regulated by inhibition of ADAM9, and this regulation may be used to control shedding of amyloid precursor protein by enhancing α-secretase activity, a key regulatory step in the etiology of Alzheimer disease.
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