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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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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: 14] [Impact Index Per Article: 7.0] [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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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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4
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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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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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Mullooly M, McGowan PM, Crown J, Duffy MJ. The ADAMs family of proteases as targets for the treatment of cancer. Cancer Biol Ther 2016; 17:870-80. [PMID: 27115328 DOI: 10.1080/15384047.2016.1177684] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The ADAMs (a disintegrin and metalloproteases) are transmembrane multidomain proteins implicated in multiple biological processes including proteolysis, cell adhesion, cell fusion, cell proliferation and cell migration. Of these varied activities, the best studied is their role in proteolysis. However, of the 22 ADAMs believed to be functional in humans, only approximately a half possess matrix metalloproteinase (MMP)-like protease activity. In contrast to MMPs which are mostly implicated in the degradation of extracellular matrix proteins, the main ADAM substrates are the ectodomains of type I and type II transmembrane proteins. These include growth factor/cytokine precursors, growth factor/cytokine receptors and adhesion proteins. Recently, several different ADAMs, especially ADAM17, have been shown to play a role in the development and progression of multiple cancer types. Consistent with this role in cancer, targeting ADAM17 with either low molecular weight inhibitors or monoclonal antibodies was shown to have anti-cancer activity in multiple preclinical systems. Although early phase clinical trials have shown no serious side effects with a dual ADAM10/17 low molecular weight inhibitor, the consequences of long-term treatment with these agents is unknown. Furthermore, efficacy in clinical trials remains to be shown.
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Affiliation(s)
- Maeve Mullooly
- a National Institutes of Health , Bethesda , MD , USA.,b UCD School of Medicine and Medical Science , Conway Institute of Biomolecular and Biomedical Research, University College Dublin , Ireland
| | - Patricia M McGowan
- b UCD School of Medicine and Medical Science , Conway Institute of Biomolecular and Biomedical Research, University College Dublin , Ireland.,c Education and Research Center , St. Vincent's University Hospital , Dublin , Ireland
| | - John Crown
- d Department of Medical Oncology , St. Vincent's University Hospital , Dublin , Ireland
| | - Michael J Duffy
- b UCD School of Medicine and Medical Science , Conway Institute of Biomolecular and Biomedical Research, University College Dublin , Ireland.,e UCD Clinical Research Center , St. Vincent's University Hospital , Dublin , Ireland
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Wong E, Maretzky T, Peleg Y, Blobel CP, Sagi I. The Functional Maturation of A Disintegrin and Metalloproteinase (ADAM) 9, 10, and 17 Requires Processing at a Newly Identified Proprotein Convertase (PC) Cleavage Site. J Biol Chem 2015; 290:12135-46. [PMID: 25795784 DOI: 10.1074/jbc.m114.624072] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Indexed: 11/06/2022] Open
Abstract
Proenzyme maturation is a general mechanism to control the activation of enzymes. Catalytically active members of the A Disintegrin And Metalloprotease (ADAM) family of membrane-anchored metalloproteases are synthesized as proenzymes, in which the latency is maintained by their autoinhibitory pro-domains. A proteolytic processing then transforms the proenzyme into a catalytically active form. The removal of the pro-domain of ADAMs is currently thought to depend on processing at a canonical consensus site for the proprotein convertase Furin (RXXR) between the pro- and the catalytic domain. Here, we demonstrate that this previously described canonical site is a secondary cleavage site to a prerequisite cleavage in a newly characterized upstream PC site embedded within the pro-domain sequence. The novel upstream regulatory site is important for the maturation of several ADAM proenzymes. Mutations in the upstream regulatory site of ADAM17, ADAM10, and ADAM9 do not prevent pro-domain processing between the pro- and metalloprotease domain, but nevertheless, cause significantly reduced catalytic activity. Thus, our results have uncovered a novel functionally relevant PC processing site in the N-terminal part of the pro-domain that is important for the activation of these ADAMs. These results suggest that the novel PC site is part of a general mechanism underlying proenzyme maturation of ADAMs that is independent of processing at the previously identified canonical Furin cleavage site.
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Affiliation(s)
- Eitan Wong
- From the Department of Biological Regulation and
| | - Thorsten Maretzky
- the Arthritis and Tissue Degeneration Program, Hospital for Special Surgery and
| | - Yoav Peleg
- The Israel Structural Proteomics Center, Weizmann Institute of Science, Rehovot, 7610001, Israel and
| | - Carl P Blobel
- the Arthritis and Tissue Degeneration Program, Hospital for Special Surgery and the Departments of Medicine and of Physiology, Biophysics and Systems Biology, Weill Cornell Medical College, New York, New York 10021
| | - Irit Sagi
- From the Department of Biological Regulation and
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Abstract
STUDY DESIGN The presence of fibronectin fragments (FN-fs) and the cleaving enzyme, A disintegrin and metalloproteinase domain-containing protein (ADAM)-8 were examined in human intervertebral disc (IVD) tissue in vitro. OBJECTIVE To investigate the presence and pathophysiological concentration of FN-fs and their cleaving enzyme, ADAM-8, in the human IVD tissue. SUMMARY OF BACKGROUND DATA The 29-kDa FN-f has been shown to result in extracellular matrix loss in rabbit IVDs. However, the concentration of this biologically active fragment in the degenerative human IVD tissue has previously not been determined. Furthermore, it is critical to identify the enzyme(s) responsible for FN cleavage in the IVD. METHODS Human degenerative IVD tissues were removed during spinal surgery. A normal seeming young adult and an infant human cadaveric sample were obtained as controls. Soluble proteins were extracted, and analyzed by Western blotting using antibodies specific for the human FN neoepitope VRAA²⁷¹. A purified 29-kDa FN-f was used to allow estimation of the concentration of FN-fs in the tissues. ADAM-8, a FN-cleaving enzyme, was analyzed by Western blotting and immunostaining. RESULTS All adult IVD tissues contain many FN-f species, but these species were absent from the infant disc tissue. Moderately degenerative discs contained the highest amount of FN-fs; the concentration was estimated to be in the nanomolar range per gram of tissue. ADAM-8, known to cleave FN resulting in the VRAA²⁷¹ neoepitope, was present in the human disc. ADAM-8 primarily localized in the pericellular matrix of the nucleus pulposus tissue, as determined by immunostaining. CONCLUSION This is the first report that N-terminal FN-fs are consistently present in IVD tissues from adult subjects. The pathophysiological concentration of these fragments is estimated to be at nanomolar range per gram of IVD tissue. Furthermore, ADAM-8, known to cleave FN, is present at the pericellular matrix of disc cells.
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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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10
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Przemyslaw L, Boguslaw HA, Elzbieta S, Malgorzata SM. ADAM and ADAMTS family proteins and their role in the colorectal cancer etiopathogenesis. BMB Rep 2013; 46:139-50. [PMID: 23527857 PMCID: PMC4133867 DOI: 10.5483/bmbrep.2013.46.3.176] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The ADAM and ADAMTS families, also called adamalysins belong to an important group of extracellular matrix proteins. The ADAMs family belong to both the transmembrane and secreted proteins, while ADAMTS family only contains secreted forms. Adamalysins play an important role in the cell phenotype regulation via their activities in signaling pathways, cell adhesion and migration. The human proteome contains 21 ADAM, and 19 ADAMTS proteins, which are involved in extracellular matrix remodeling, shedding of various substrates such as: adhesion ligands, growth factors, their receptors and diverse cytokines. Recent studies provide evidence that adamalysins play a crucial role in colorectal cancer (CRC) etiopathogenesis. It seems possible that adamalysins might be used as CRC prediction markers or potential pharmaceutical targets. [BMB Reports 2013; 46(3): 139-150]
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11
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Hall T, Shieh HS, Day JE, Caspers N, Chrencik JE, Williams JM, Pegg LE, Pauley AM, Moon AF, Krahn JM, Fischer DH, Kiefer JR, Tomasselli AG, Zack MD. Structure of human ADAM-8 catalytic domain complexed with batimastat. Acta Crystallogr Sect F Struct Biol Cryst Commun 2012; 68:616-21. [PMID: 22684055 PMCID: PMC3370895 DOI: 10.1107/s1744309112015618] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 04/10/2012] [Indexed: 11/11/2022]
Abstract
The role of ADAM-8 in cancer and inflammatory diseases such as allergy, arthritis and asthma makes it an attractive target for drug development. Therefore, the catalytic domain of human ADAM-8 was expressed, purified and crystallized in complex with a hydroxamic acid inhibitor, batimastat. The crystal structure of the enzyme-inhibitor complex was refined to 2.1 Å resolution. ADAM-8 has an overall fold similar to those of other ADAM members, including a central five-stranded β-sheet and a catalytic Zn(2+) ion. However, unique differences within the S1' binding loop of ADAM-8 are observed which might be exploited to confer specificity and selectivity to ADAM-8 competitive inhibitors for the treatment of diseases involving this enzyme.
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Affiliation(s)
- Troii Hall
- Pfizer Inc., 700 Chesterfield Parkway West, Chesterfield, MO 63017, USA
| | - Huey-Sheng Shieh
- Pfizer Inc., 700 Chesterfield Parkway West, Chesterfield, MO 63017, USA
| | - Jacqueline E. Day
- Pfizer Inc., 700 Chesterfield Parkway West, Chesterfield, MO 63017, USA
| | - Nicole Caspers
- Pfizer Inc., 700 Chesterfield Parkway West, Chesterfield, MO 63017, USA
| | - Jill E. Chrencik
- Pfizer Inc., 700 Chesterfield Parkway West, Chesterfield, MO 63017, USA
| | | | - Lyle E. Pegg
- Pfizer Inc., 700 Chesterfield Parkway West, Chesterfield, MO 63017, USA
| | - Adele M. Pauley
- Pfizer Inc., 700 Chesterfield Parkway West, Chesterfield, MO 63017, USA
| | - Andrea F. Moon
- Laboratory of Structural Biology, National Institute of Environmental Health Sciences, National Institutes of Health, 111 T. W. Alexander Drive, Building 101/MD F3-09, Research Triangle Park, NC 27709, USA
| | - Joseph M. Krahn
- Laboratory of Structural Biology, National Institute of Environmental Health Sciences, National Institutes of Health, 111 T. W. Alexander Drive, Building 101/MD F3-09, Research Triangle Park, NC 27709, USA
| | - David H. Fischer
- Pfizer Inc., 700 Chesterfield Parkway West, Chesterfield, MO 63017, USA
| | - James R. Kiefer
- Pfizer Inc., 700 Chesterfield Parkway West, Chesterfield, MO 63017, USA
| | | | - Marc D. Zack
- Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, IN 46268, USA
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12
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Hall T, Pegg LE, Pauley AM, Fischer HD, Tomasselli AG, Zack MD. ADAM8 substrate specificity: influence of pH on pre-processing and proteoglycan degradation. Arch Biochem Biophys 2009; 491:106-11. [PMID: 19766586 DOI: 10.1016/j.abb.2009.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Revised: 09/09/2009] [Accepted: 09/12/2009] [Indexed: 11/25/2022]
Abstract
A disintegrin and metalloprotease-8 (ADAM8) is thought to play a role in cancer and inflammatory diseases such as allergy, arthritis, and asthma. Despite the implication of ADAM8 in these diseases, the functional role of ADAM8 catalytic activity remains unclear. In this report, we demonstrate that an early critical autolytic event, we have termed pre-processing, is accelerated at acidic pH (pH 5.5) while autolytic activation is abrogated under the same conditions. Likewise, we found that pre-processing is hindered and autolytic activation is facilitated in neutral pH conditions, and thus demonstrates a pH-dependent shift in substrate selectivity. This finding is further supported by two peptide substrates corresponding to the pre-processing and C-terminal scissile bonds that were preferentially cleaved at acidic and neutral pH, respectively. Lastly, we found fibronectin cleavage to be attenuated at pH 5.5, while two novel substrates, brevican, and vitronectin, were readily cleaved in neutral or acidic conditions.
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Affiliation(s)
- Troii Hall
- Pfizer Inc., Global Research and Development, St. Louis Laboratories, St. Louis, MO 63017-1732, USA
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13
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Zack MD, Melton MA, Stock JL, Storer CE, Barve RA, Minnerly JC, Weiss DJ, Stejskal JA, Tortorella MD, Turk JR, Shevlin KM, Malfait AM. Reduced incidence and severity of experimental autoimmune arthritis in mice expressing catalytically inactive A disintegrin and metalloproteinase 8 (ADAM8). Clin Exp Immunol 2009; 158:246-56. [PMID: 19737139 DOI: 10.1111/j.1365-2249.2009.04009.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
A disintegrin and metalloproteinase 8 (ADAM8), a catalytically active member of the ADAMs family of enzymes, is expressed primarily on immune cells and thus probably involved in inflammatory responses. ADAM8 is also produced by chondrocytes, and recombinant ADAM8 can induce cartilage catabolism. We therefore decided to test the role of ADAM8 in autoimmune inflammatory arthritis using transgenic mice expressing catalytically inactive ADAM8. Transgenic DBA/1J mice expressing an inactivating point mutation in the ADAM8 gene to change Glu330 to Gln330 (ADAM8(EQ)) were generated to evaluate the proteolytic function of ADAM8 in an lipopolysaccharide-synchronized collagen-induced arthritis (LPS-CIA) model of autoimmune arthritis. The systemic inflammatory reaction to LPS was also evaluated in these mice. Expression profiling of paw joints from wild-type mice revealed that ADAM8 mRNA levels increased at the onset of clinical arthritis and correlated well with cellular macrophage markers. When subjected to LPS-CIA, ADAM8(EQ) mice demonstrated decreased incidence and severity of clinical arthritis compared to wild-type mice. Histological examination of paw joints from ADAM8(EQ) mice confirmed marked attenuation of synovial inflammation, cartilage degradation and bone resorption when compared to wild-type mice. However, transgenic mice and wild-type mice responded similarly to LPS-induced systemic inflammation with regard to mortality, organ weights, neutrophil sequestration and serum cytokine/chemokine production. We conclude that ADAM8 proteolytic activity plays a key role in the development of experimental arthritis and may thus be an attractive target for the treatment of arthritic disorders while minimizing risk of immunocompromise.
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Affiliation(s)
- M D Zack
- Pfizer Global Research and Development, Chesterfield, MO 63017, USA.
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Abstract
BACKGROUND A proteinase with a disintegrin and a metalloproteinase domain-8 (ADAM8) has been linked to asthma. OBJECTIVE To explore whether ADAM8 is a therapeutic target for asthma. METHODS We reviewed literature on ADAM8's function and expression and activities in lungs of humans and mice with allergic airway inflammation (AAI). We used these data to generate hypotheses about the contributions of ADAM8 to asthma pathogenesis. CONCLUSIONS ADAM8 levels are increased in airway epithelium and airway inflammatory cells in mice with AAI and human asthma patients. Data from murine models of AAI indicate that ADAM8 dampens airway inflammation. It is not clear whether ADAM8 contributes directly to structural remodeling in asthmatic airways. Additional studies are required to validate ADAM8 as a therapeutic target for asthma.
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Affiliation(s)
- Martin D Knolle
- Brigham and Women's Hospital, Harvard Medical School, Division of Pulmonary and Critical Care Medicine, 905 Thorn Building, 75 Francis Street, Boston, MA 02115, USA
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