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You J, Wang S, Zhu Y, Zhang Z, Wang J, Lou Y, Yao Y, Hao Y, Liu P. Natural Killer Cells Reprogram Myeloid-Derived Suppressor Cells to Induce TNF-α Release via NKG2D-Ligand Interaction after Cryo-Thermal Therapy. Int J Mol Sci 2024; 25:5151. [PMID: 38791188 PMCID: PMC11121051 DOI: 10.3390/ijms25105151] [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: 04/02/2024] [Revised: 05/02/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
In our previous studies, a novel cryothermal therapy (CTT) was developed to induce systemic long-term anti-tumor immunity. Natural killer (NK) cells were found to play an important role in CTT-induced long-term immune-mediated tumor control at the late stage after CTT, but the underlying mechanism is unclear. Myeloid-derived suppressor cells (MDSCs) are immature myeloid cells that have potent immunosuppressive effects on T cells and weaken the long-term benefits of immunotherapy. Consequently, overcoming MDSC immunosuppression is essential for maintaining the long-term efficacy of immunotherapy. In this study, we revealed that NK cells considerably diminish MDSC accumulation at the late stage after CTT, boost T cell production, increase T cell activation, and promote MDSC maturation, culminating in Th1-dominant CD4+ T cell differentiation and enhancing NK and CD8+ T cell cytotoxicity. Additionally, NK cells activate ERK signaling in MDSCs through NKG2D-ligand interaction to increase the activity of tumor necrosis factor (TNF)-α converting enzyme (TACE)-cleaved membrane TNF-α. Furthermore, Increased TACE activity releases more soluble TNF-α from MDSCs to promote MDSC maturation. In our studies, we propose a novel mechanism by which NK cells can overcome MDSC-induced immunosuppression and maintain CTT-induced persistent anti-tumor immunity, providing a prospective therapeutic option to improve the performance of cancer immunotherapy.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Ping Liu
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai 200030, China; (J.Y.); (S.W.); (Y.Z.); (Z.Z.); (J.W.); (Y.L.); (Y.Y.); (Y.H.)
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2
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Vu QV, Sayama S, Ando M, Kataoka T. Sesquiterpene Lactones Containing an α-Methylene-γ-Lactone Moiety Selectively Down-Regulate the Expression of Tumor Necrosis Factor Receptor 1 by Promoting Its Ectodomain Shedding in Human Lung Adenocarcinoma A549 Cells. Molecules 2024; 29:1866. [PMID: 38675685 PMCID: PMC11053566 DOI: 10.3390/molecules29081866] [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: 03/19/2024] [Revised: 04/16/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Alantolactone is a eudesmane-type sesquiterpene lactone containing an α-methylene-γ-lactone moiety. Previous studies showed that alantolactone inhibits the nuclear factor κB (NF-κB) signaling pathway by targeting the inhibitor of NF-κB (IκB) kinase. However, in the present study, we demonstrated that alantolactone selectively down-regulated the expression of tumor necrosis factor (TNF) receptor 1 (TNF-R1) in human lung adenocarcinoma A549 cells. Alantolactone did not affect the expression of three adaptor proteins recruited to TNF-R1. The down-regulation of TNF-R1 expression by alantolactone was suppressed by an inhibitor of TNF-α-converting enzyme. Alantolactone increased the soluble forms of TNF-R1 that were released into the culture medium as an ectodomain. The structure-activity relationship of eight eudesmane derivatives revealed that an α-methylene-γ-lactone moiety was needed to promote TNF-R1 ectodomain shedding. In addition, parthenolide and costunolide, two sesquiterpene lactones with an α-methylene-γ-lactone moiety, increased the amount of soluble TNF-R1. Therefore, the present results demonstrate that sesquiterpene lactones with an α-methylene-γ-lactone moiety can down-regulate the expression of TNF-R1 by promoting its ectodomain shedding in A549 cells.
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Affiliation(s)
- Quy Van Vu
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Shinsei Sayama
- Department of Natural Sciences (Chemistry), Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan;
| | - Masayoshi Ando
- Department of Chemistry and Chemical Engineering, Niigata University, 2-8050 Ikarashi, Nishi-ku, Niigata 950-2181, Japan
| | - Takao Kataoka
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
- Biomedical Research Center, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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3
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Schumacher N, Thomsen I, Brundert F, Hejret V, Düsterhöft S, Tichý B, Schmidt-Arras D, Voss M, Rose-John S. EGFR stimulation enables IL-6 trans-signalling via iRhom2-dependent ADAM17 activation in mammary epithelial cells. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2023; 1870:119489. [PMID: 37271223 DOI: 10.1016/j.bbamcr.2023.119489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 04/14/2023] [Accepted: 05/05/2023] [Indexed: 06/06/2023]
Abstract
The cytokine interleukin-6 (IL-6) has considerable pro-inflammatory properties and is a driver of many physiological and pathophysiological processes. Cellular responses to IL-6 are mediated by membrane-bound or soluble forms of the IL-6 receptor (IL-6R) complexed with the signal-transducing subunit gp130. While expression of the membrane-bound IL-6R is restricted to selected cell types, soluble IL-6R (sIL-6R) enables gp130 engagement on all cells, a process termed IL-6 trans-signalling and considered to be pro-inflammatory. sIL-6R is predominantly generated through proteolytic processing by the metalloproteinase ADAM17. ADAM17 also liberates ligands of the epidermal growth factor receptor (EGFR), which is a prerequisite for EGFR activation and results in stimulation of proliferative signals. Hyperactivation of EGFR mostly due to activating mutations drives cancer development. Here, we reveal an important link between overshooting EGFR signalling and the IL-6 trans-signalling pathway. In epithelial cells, EGFR activity induces not only IL-6 expression but also the proteolytic release of sIL-6R from the cell membrane by increasing ADAM17 surface activity. We find that this derives from the transcriptional upregulation of iRhom2, a crucial regulator of ADAM17 trafficking and activation, upon EGFR engagement, which results in increased surface localization of ADAM17. Also, phosphorylation of the EGFR-downstream mediator ERK mediates ADAM17 activity via interaction with iRhom2. In sum, our study reveals an unforeseen interplay between EGFR activation and IL-6 trans-signalling, which has been shown to be fundamental in inflammation and cancer.
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Affiliation(s)
- Neele Schumacher
- Institute of Biochemistry, Medical Faculty, Kiel University, Germany.
| | - Ilka Thomsen
- Institute of Biochemistry, Medical Faculty, Kiel University, Germany
| | - Florian Brundert
- Institute of Biochemistry, Medical Faculty, Kiel University, Germany
| | - Vaclav Hejret
- CEITEC-Central European Institute of Technology, Masaryk University, Czech Republic
| | - Stefan Düsterhöft
- Institute of Molecular Pharmacology, University Hospital Aachen/RWTH, Aachen, Germany
| | - Boris Tichý
- CEITEC-Central European Institute of Technology, Masaryk University, Czech Republic
| | | | - Matthias Voss
- Institute of Biochemistry, Medical Faculty, Kiel University, Germany
| | - Stefan Rose-John
- Institute of Biochemistry, Medical Faculty, Kiel University, Germany
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4
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Mytych JS, Pan Z, Lopez-Davis C, Redinger N, Lawrence C, Ziegler J, Popescu NI, James JA, Farris AD. Peptidoglycan from Bacillus anthracis Inhibits Human Macrophage Efferocytosis in Part by Reducing Cell Surface Expression of MERTK and TIM-3. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.30.535001. [PMID: 37066181 PMCID: PMC10103956 DOI: 10.1101/2023.03.30.535001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Bacillus anthracis peptidoglycan (PGN) is a major component of the bacterial cell wall and a key pathogen-associated molecular pattern (PAMP) contributing to anthrax pathology, including organ dysfunction and coagulopathy. Increases in apoptotic lymphocytes are a late-stage feature of anthrax and sepsis, suggesting there is a defect in apoptotic clearance. Here, we tested the hypothesis that B. anthracis PGN inhibits the capacity of human monocyte-derived macrophages (MΦ) to efferocytose apoptotic cells. Exposure of CD163+CD206+ MΦ to PGN for 24h impaired efferocytosis in a manner dependent on human serum opsonins but independent of complement component C3. PGN treatment reduced cell surface expression of the pro-efferocytic signaling receptors MERTK, TYRO3, AXL, integrin αVβ5, CD36 and TIM-3, whereas TIM-1, αVβ3, CD300b, CD300f, STABILIN-1 and STABILIN-2 were unaffected. ADAM17 is a major membrane-bound protease implicated in mediating efferocytotic receptor cleavage. We found multiple ADAM17-mediated substrates increased in PGN-treated supernatant suggesting involvement of membrane-bound proteases. ADAM17 inhibitors TAPI-0 and Marimastat prevented TNF release, indicating effective protease inhibition, and modestly increased cell-surface levels of MerTK and TIM-3 but only partially restored efferocytic capacity by PGN-treated MΦ. We conclude that human serum factors are required for optimal recognition of PGN by human MΦ and that B. anthracis PGN inhibits efferocytosis in part by reducing cell surface expression of MERTK and TIM-3.
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Affiliation(s)
- Joshua S Mytych
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, 825 NE 13 Street, Oklahoma City, OK 73104, USA
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, 1100 N Lindsay Avenue, Oklahoma City, OK 73104, USA
| | - Zijian Pan
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, 825 NE 13 Street, Oklahoma City, OK 73104, USA
| | - Charmaine Lopez-Davis
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, 825 NE 13 Street, Oklahoma City, OK 73104, USA
| | - Nancy Redinger
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, 825 NE 13 Street, Oklahoma City, OK 73104, USA
| | - Christina Lawrence
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, 825 NE 13 Street, Oklahoma City, OK 73104, USA
| | - Jadith Ziegler
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, 825 NE 13 Street, Oklahoma City, OK 73104, USA
| | - Narcis I. Popescu
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, 825 NE 13 Street, Oklahoma City, OK 73104, USA
| | - Judith A. James
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, 825 NE 13 Street, Oklahoma City, OK 73104, USA
| | - A. Darise Farris
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, 825 NE 13 Street, Oklahoma City, OK 73104, USA
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, 1100 N Lindsay Avenue, Oklahoma City, OK 73104, USA
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5
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Kahveci-Türköz S, Bläsius K, Wozniak J, Rinkens C, Seifert A, Kasparek P, Ohm H, Oltzen S, Nieszporek M, Schwarz N, Babendreyer A, Preisinger C, Sedlacek R, Ludwig A, Düsterhöft S. A structural model of the iRhom-ADAM17 sheddase complex reveals functional insights into its trafficking and activity. Cell Mol Life Sci 2023; 80:135. [PMID: 37119365 PMCID: PMC10148629 DOI: 10.1007/s00018-023-04783-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 05/01/2023]
Abstract
Several membrane-anchored signal mediators such as cytokines (e.g. TNFα) and growth factors are proteolytically shed from the cell surface by the metalloproteinase ADAM17, which, thus, has an essential role in inflammatory and developmental processes. The membrane proteins iRhom1 and iRhom2 are instrumental for the transport of ADAM17 to the cell surface and its regulation. However, the structure-function determinants of the iRhom-ADAM17 complex are poorly understood. We used AI-based modelling to gain insights into the structure-function relationship of this complex. We identified different regions in the iRhom homology domain (IRHD) that are differentially responsible for iRhom functions. We have supported the validity of the predicted structure-function determinants with several in vitro, ex vivo and in vivo approaches and demonstrated the regulatory role of the IRHD for iRhom-ADAM17 complex cohesion and forward trafficking. Overall, we provide mechanistic insights into the iRhom-ADAM17-mediated shedding event, which is at the centre of several important cytokine and growth factor pathways.
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Affiliation(s)
- Selcan Kahveci-Türköz
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Katharina Bläsius
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Justyna Wozniak
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Cindy Rinkens
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Anke Seifert
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Petr Kasparek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Henrike Ohm
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Shixin Oltzen
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Martin Nieszporek
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Nicole Schwarz
- Institute of Molecular and Cellular Anatomy, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Aaron Babendreyer
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | | | - Radislav Sedlacek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Andreas Ludwig
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Stefan Düsterhöft
- Institute of Molecular Pharmacology, Medical Faculty, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany.
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6
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Wu K, Xu J, Jia Z, Wang J, Wang Z, Feng J, Zhu X, Liu Q, Wang B, Li M, Pang Y, Zou J. Phylogeny and expression of ADAM10 and ADAM17 homologs in lamprey. FISH PHYSIOLOGY AND BIOCHEMISTRY 2023; 49:321-334. [PMID: 36964830 DOI: 10.1007/s10695-023-01184-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 03/10/2023] [Indexed: 05/04/2023]
Abstract
The ADAMs (a disintegrin and metalloproteinase) play regulatory roles in cell adhesion, migration and proteolysis. To explore the origin and evolution of ADAMs, this study identified the homologs of adam10 and adam17 in Lampetra morii and Lampetra japonica. Sequence analysis revealed that they share the same genomic structures with their counterparts in jawed vertebrates. The putative proteins possess conserved motifs, including a furin cut site (RXXR) for precursor processing, an enzyme catalytic motif (HEXGEHXXGXXH) for hydrolysis, and a Ca2+-binding motif (CGNXXXEXGEXCD) for stabilizing protein structure. In addition, a substrate recognition domain is present at the membrane-proximal region of lamprey ADAM17. The cytoplasmic region of lamprey ADAM10 contains a potential threonine phosphorylation site which has been shown to be activated by protein kinase C (PKC) in mammals. Both the adam10 and adam17 genes were constitutively expressed in the brain, kidney, and gills and were differentially regulated in the primary blood leukocytes by lipopolysaccharide (LPS) and pokeweed mitogen (PWM). Adam10 was induced by LPS but not PWM; conversely, adam17 was induced by PWM but not LPS. Taken together, our results suggest that the activation pathways and functions of ADAM10 and ADAM17 are conserved in agnathans.
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Affiliation(s)
- Kaizheng Wu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Jing Xu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Zhao Jia
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Junya Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Zixuan Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Jianhua Feng
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Xiaozhen Zhu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Qin Liu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Bangjie Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Mingjie Li
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Yue Pang
- Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China.
| | - Jun Zou
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Ministry of Education), Shanghai Ocean University, Shanghai, 201306, China.
- International Research Center for Marine Biosciences at, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, China.
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China.
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
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7
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A Bioengineering Strategy to Control ADAM10 Activity in Living Cells. Int J Mol Sci 2023; 24:ijms24020917. [PMID: 36674432 PMCID: PMC9863580 DOI: 10.3390/ijms24020917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/30/2022] [Accepted: 01/01/2023] [Indexed: 01/06/2023] Open
Abstract
A Disintegrin and Metalloprotease 10, also known as ADAM10, is a cell surface protease ubiquitously expressed in mammalian cells where it cuts several membrane proteins implicated in multiple physiological processes. The dysregulation of ADAM10 expression and function has been implicated in pathological conditions, including Alzheimer's disease (AD). Although it has been suggested that ADAM10 is expressed as a zymogen and the removal of the prodomain results in its activation, other potential mechanisms for the ADAM10 proteolytic function and activation remain unclear. Another suggested mechanism is post-translational modification of the cytoplasmic domain, which regulates ADAM10-dependent protein ectodomain shedding. Therefore, the precise and temporal activation of ADAM10 is highly desirable to reveal the fine details of ADAM10-mediated cleavage mechanisms and protease-dependent therapeutic applications. Here, we present a strategy to control prodomain and cytosolic tail cleavage to regulate ADAM10 shedding activity without the intervention of small endogenous molecule signaling pathways. We generated a series of engineered ADAM10 analogs containing Tobacco Etch Virus protease (TEV) cleavage site (TEVcs), rendering ADAM10 cleavable by TEV. This strategy revealed that, in the absence of other stimuli, the TEV-mediated removal of the prodomain could not activate ADAM10. However, the TEV-mediated cleavage of the cytosolic domain significantly increased ADAM10 activity. Then, we generated ADAM10 with a minimal constitutively catalytic activity that increased significantly in the presence of TEV or after activating a chemically activatable TEV. Our results revealed a bioengineering strategy for controlling the ADAM10 activity in living cells, paving the way to obtain spatiotemporal control of ADAM10. Finally, we proved that our approach of controlling ADAM10 promoted α-secretase activity and the non-amyloidogenic cleavage of amyloid-β precursor protein (APP), thereby increasing the production of the neuroprotective soluble ectodomain (sAPPα). Our bioengineering strategy has the potential to be exploited as a next-generation gene therapy for AD.
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8
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Sharma D, Singh NK. The Biochemistry and Physiology of A Disintegrin and Metalloproteinases (ADAMs and ADAM-TSs) in Human Pathologies. Rev Physiol Biochem Pharmacol 2023; 184:69-120. [PMID: 35061104 DOI: 10.1007/112_2021_67] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Metalloproteinases are a group of proteinases that plays a substantial role in extracellular matrix remodeling and its molecular signaling. Among these metalloproteinases, ADAMs (a disintegrin and metalloproteinases) and ADAM-TSs (ADAMs with thrombospondin domains) have emerged as highly efficient contributors mediating proteolytic processing of various signaling molecules. ADAMs are transmembrane metalloenzymes that facilitate the extracellular domain shedding of membrane-anchored proteins, cytokines, growth factors, ligands, and their receptors and therefore modulate their biological functions. ADAM-TSs are secretory, and soluble extracellular proteinases that mediate the cleavage of non-fibrillar extracellular matrix proteins. ADAMs and ADAM-TSs possess pro-domain, metalloproteinase, disintegrin, and cysteine-rich domains in common, but ADAM-TSs have characteristic thrombospondin motifs instead of the transmembrane domain. Most ADAMs and ADAM-TSs are activated by cleavage of pro-domain via pro-protein convertases at their N-terminus, hence directing them to various signaling pathways. In this article, we are discussing not only the structure and regulation of ADAMs and ADAM-TSs, but also the importance of these metalloproteinases in various human pathophysiological conditions like cardiovascular diseases, colorectal cancer, autoinflammatory diseases (sepsis/rheumatoid arthritis), Alzheimer's disease, proliferative retinopathies, and infectious diseases. Therefore, based on the emerging role of ADAMs and ADAM-TSs in various human pathologies, as summarized in this review, these metalloproteases can be considered as critical therapeutic targets and diagnostic biomarkers.
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Affiliation(s)
- Deepti Sharma
- Department of Ophthalmology, Visual and Anatomical Sciences, Integrative Biosciences Center (IBio), Wayne State University School of Medicine, Detroit, MI, USA
| | - Nikhlesh K Singh
- Department of Ophthalmology, Visual and Anatomical Sciences, Integrative Biosciences Center (IBio), Wayne State University School of Medicine, Detroit, MI, USA.
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9
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Tang BY, Ge J, Wu Y, Wen J, Tang XH. The Role of ADAM17 in Inflammation-Related Atherosclerosis. J Cardiovasc Transl Res 2022; 15:1283-1296. [PMID: 35648358 DOI: 10.1007/s12265-022-10275-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 05/06/2022] [Indexed: 10/18/2022]
Abstract
Atherosclerosis is a chronic inflammatory disease that poses a huge economic burden due to its extremely poor prognosis. Therefore, it is necessary to explore potential mechanisms to improve the prevention and treatment of atherosclerosis. A disintegrin and metalloprotease 17 (ADAM17) is a cell membrane-bound protein that performs a range of functions through membrane protein shedding and intracellular signaling. ADAM17-mediated inflammation has been identified to be an important contributor to atherosclerosis; however, the specific relationship between its multiple regulatory roles and the pathogenesis of atherosclerosis remains unclear. Here, we reviewed the activation, function, and regulation of ADAM17, described in detail the role of ADAM17-mediated inflammatory damage in atherosclerosis, and discussed several controversial points. We hope that these insights into ADAM17 biology will lead to rational management of atherosclerosis. ADAM17 promotes vascular inflammation in endothelial cells, smooth muscle cells, and macrophages, and regulates the occurrence and development of atherosclerosis.
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Affiliation(s)
- Bai-Yi Tang
- Department of Cardiology, Third Xiang-Ya Hospital, Central South University, 138 Tongzipo Road, Changsha, 410013, Hunan, China
| | - Jin Ge
- Department of Cardiology, Third Xiang-Ya Hospital, Central South University, 138 Tongzipo Road, Changsha, 410013, Hunan, China
| | - Yang Wu
- Department of Cardiology, Third Hospital of Changsha, 176 W. Laodong Road, Changsha, 410015, Hunan, China
| | - Juan Wen
- Department of Cardiology, Third Xiang-Ya Hospital, Central South University, 138 Tongzipo Road, Changsha, 410013, Hunan, China.
| | - Xiao-Hong Tang
- Department of Cardiology, Third Xiang-Ya Hospital, Central South University, 138 Tongzipo Road, Changsha, 410013, Hunan, China.
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10
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ADAM17 Is an Essential Factor for the Infection of Bovine Cells with Pestiviruses. Viruses 2022; 14:v14020381. [PMID: 35215974 PMCID: PMC8875743 DOI: 10.3390/v14020381] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 01/19/2023] Open
Abstract
The entry of BVDV into bovine cells was studied using CRIB cells (cells resistant to infection with bovine viral diarrhea virus [BVDV]) that have evolved from MDBK cells by a spontaneous loss of susceptibility to BVDV. Recently, larger genetic deletions were reported but no correlation of the affected genes and the resistance to BVDV infection could be established. The metalloprotease ADAM17 was reported as an essential attachment factor for the related classical swine fever virus (CSFV). To assess whether ADAM17 might be involved in the resistance of CRIB-1 cells to pestiviruses, we analyzed its expression in CRIB-1 and MDBK cells. While ADAM17 protein was detectable in MBDK cells, it was absent from CRIB-1 cells. No functional full-length ADAM17 mRNA could be detected in CRIB cells and genetic analysis revealed the presence of two defective alleles. Transcomplementation of functional ADAM17 derived from MDBK cells in CRIB-1 cells resulted in a nearly complete reversion of their resistance to pestiviral infection. Our results demonstrate that ADAM17 is a key cellular factor for the pestivirus resistance of CRIB-1 cells and establishes its essential role for a broader range of pestiviruses.
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11
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ADAM and ADAMTS disintegrin and metalloproteinases as major factors and molecular targets in vascular malfunction and disease. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2022; 94:255-363. [PMID: 35659374 PMCID: PMC9231755 DOI: 10.1016/bs.apha.2021.11.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A Disintegrin and Metalloproteinase (ADAM) and A Disintegrin and Metalloproteinase with Thrombospondin Motifs (ADAMTS) are two closely related families of proteolytic enzymes. ADAMs are largely membrane-bound enzymes that act as molecular scissors or sheddases of membrane-bound proteins, growth factors, cytokines, receptors and ligands, whereas ADAMTS are mainly secreted enzymes. ADAMs have a pro-domain, and a metalloproteinase, disintegrin, cysteine-rich and transmembrane domain. Similarly, ADAMTS family members have a pro-domain, and a metalloproteinase, disintegrin, and cysteine-rich domain, but instead of a transmembrane domain they have thrombospondin motifs. Most ADAMs and ADAMTS are activated by pro-protein convertases, and can be regulated by G-protein coupled receptor agonists, Ca2+ ionophores and protein kinase C. Activated ADAMs and ADAMTS participate in numerous vascular processes including angiogenesis, vascular smooth muscle cell proliferation and migration, vascular cell apoptosis, cell survival, tissue repair, and wound healing. ADAMs and ADAMTS also play a role in vascular malfunction and cardiovascular diseases such as hypertension, atherosclerosis, coronary artery disease, myocardial infarction, heart failure, peripheral artery disease, and vascular aneurysm. Decreased ADAMTS13 is involved in thrombotic thrombocytopenic purpura and microangiopathies. The activity of ADAMs and ADAMTS can be regulated by endogenous tissue inhibitors of metalloproteinases and other synthetic small molecule inhibitors. ADAMs and ADAMTS can be used as diagnostic biomarkers and molecular targets in cardiovascular disease, and modulators of ADAMs and ADAMTS activity may provide potential new approaches for the management of cardiovascular disorders.
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12
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Johansen KH, Golec DP, Thomsen JH, Schwartzberg PL, Okkenhaug K. PI3K in T Cell Adhesion and Trafficking. Front Immunol 2021; 12:708908. [PMID: 34421914 PMCID: PMC8377255 DOI: 10.3389/fimmu.2021.708908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/19/2021] [Indexed: 12/12/2022] Open
Abstract
PI3K signalling is required for activation, differentiation, and trafficking of T cells. PI3Kδ, the dominant PI3K isoform in T cells, has been extensively characterised using PI3Kδ mutant mouse models and PI3K inhibitors. Furthermore, characterisation of patients with Activated PI3K Delta Syndrome (APDS) and mouse models with hyperactive PI3Kδ have shed light on how increased PI3Kδ activity affects T cell functions. An important function of PI3Kδ is that it acts downstream of TCR stimulation to activate the major T cell integrin, LFA-1, which controls transendothelial migration of T cells as well as their interaction with antigen-presenting cells. PI3Kδ also suppresses the cell surface expression of CD62L and CCR7 which controls the migration of T cells across high endothelial venules in the lymph nodes and S1PR1 which controls lymph node egress. Therefore, PI3Kδ can control both entry and exit of T cells from lymph nodes as well as the recruitment to and retention of T cells within inflamed tissues. This review will focus on the regulation of adhesion receptors by PI3Kδ and how this contributes to T cell trafficking and localisation. These findings are relevant for our understanding of how PI3Kδ inhibitors may affect T cell redistribution and function.
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Affiliation(s)
- Kristoffer H Johansen
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom.,Laboratory of Immune System Biology, NIAID, NIH, Bethesda, MD, United States
| | - Dominic P Golec
- Laboratory of Immune System Biology, NIAID, NIH, Bethesda, MD, United States
| | - Julie H Thomsen
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | | | - Klaus Okkenhaug
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
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13
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Al-Salihi M, Bornikoel A, Zhuang Y, Stachura P, Scheller J, Lang KS, Lang PA. The role of ADAM17 during liver damage. Biol Chem 2021; 402:1115-1128. [PMID: 34192832 DOI: 10.1515/hsz-2021-0149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 06/02/2021] [Indexed: 12/14/2022]
Abstract
A disintegrin and metalloprotease (ADAM) 17 is a membrane bound protease, involved in the cleavage and thus regulation of various membrane proteins, which are critical during liver injury. Among ADAM17 substrates are tumor necrosis factor α (TNFα), tumor necrosis factor receptor 1 and 2 (TNFR1, TNFR2), the epidermal growth factor receptor (EGFR) ligands amphiregulin (AR) and heparin-binding-EGF-like growth factor (HB-EGF), the interleukin-6 receptor (IL-6R) and the receptor for a hepatocyte growth factor (HGF), c-Met. TNFα and its binding receptors can promote liver injury by inducing apoptosis and necroptosis in liver cells. Consistently, hepatocyte specific deletion of ADAM17 resulted in increased liver cell damage following CD95 stimulation. IL-6 trans-signaling is critical for liver regeneration and can alleviate liver damage. EGFR ligands can prevent liver damage and deletion of amphiregulin and HB-EGF can result in increased hepatocyte death and reduced proliferation. All of which indicates that ADAM17 has a central role in liver injury and recovery from it. Furthermore, inactive rhomboid proteins (iRhom) are involved in the trafficking and maturation of ADAM17 and have been linked to liver damage. Taken together, ADAM17 can contribute in a complex way to liver damage and injury.
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Affiliation(s)
- Mazin Al-Salihi
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany.,School of Medicine, University of Central Lancashire, Preston, PR1 2HE, UK
| | - Anna Bornikoel
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Yuan Zhuang
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Pawel Stachura
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Jürgen Scheller
- Department of Biochemistry and Molecular Biology II, Medical Faculty, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Karl S Lang
- Institute of Immunology, Medical Faculty, University of Duisburg-Essen, Hufelandstr. 55, D-45147 Essen, Germany
| | - Philipp A Lang
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany
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14
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Li T, Shen K, Li J, Leung SWS, Zhu T, Shi Y. Glomerular Endothelial Cells Are the Coordinator in the Development of Diabetic Nephropathy. Front Med (Lausanne) 2021; 8:655639. [PMID: 34222276 PMCID: PMC8249723 DOI: 10.3389/fmed.2021.655639] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 05/21/2021] [Indexed: 12/22/2022] Open
Abstract
The prevalence of diabetes is consistently rising worldwide. Diabetic nephropathy is a leading cause of chronic renal failure. The present study aimed to explore the crosstalk among the different cell types inside diabetic glomeruli, including glomerular endothelial cells, mesangial cells, podocytes, and immune cells, by analyzing an online single-cell RNA profile (GSE131882) of patients with diabetic nephropathy. Differentially expressed genes in the glomeruli were processed by gene enrichment and protein-protein interactions analysis. Glomerular endothelial cells, as well as podocytes, play a critical role in diabetic nephropathy. A subgroup of glomerular endothelial cells possesses characteristic angiogenesis genes, indicating that angiogenesis takes place in the progress of diabetic nephropathy. Immune cells such as macrophages, T lymphocytes, B lymphocytes, and plasma cells also contribute to the disease progression. By using iTALK, the present study reports complicated cellular crosstalk inside glomeruli. Dysfunction of glomerular endothelial cells and immature angiogenesis result from the activation of both paracrine and autocrine signals. The present study reinforces the importance of glomerular endothelial cells in the development of diabetic nephropathy. The exploration of the signaling pathways involved in aberrant angiogenesis reported in the present study shed light on potential therapeutic target(s) for diabetic nephropathy.
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Affiliation(s)
- Tingting Li
- Key Laboratory of Organ Transplantation, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Clinical Science, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Kaiyuan Shen
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jiawei Li
- Key Laboratory of Organ Transplantation, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Susan W S Leung
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Tongyu Zhu
- Key Laboratory of Organ Transplantation, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yi Shi
- Key Laboratory of Organ Transplantation, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Clinical Science, Zhongshan Hospital, Fudan University, Shanghai, China
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15
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Adu-Amankwaah J, Adzika GK, Adekunle AO, Ndzie Noah ML, Mprah R, Bushi A, Akhter N, Xu Y, Huang F, Chatambarara B, Sun H. The Synergy of ADAM17-Induced Myocardial Inflammation and Metabolic Lipids Dysregulation During Acute Stress: New Pathophysiologic Insights Into Takotsubo Cardiomyopathy. Front Cardiovasc Med 2021; 8:696413. [PMID: 34150874 PMCID: PMC8212952 DOI: 10.3389/fcvm.2021.696413] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 05/11/2021] [Indexed: 12/11/2022] Open
Abstract
Due to its reversible nature, Takotsubo cardiomyopathy (TTC) is considered an intriguing and fascinating cardiovascular disease characterized by a transient wall motion abnormality of the left ventricle, affecting more than one coronary artery territory, often in a circumferential apical distribution. Takotsubo cardiomyopathy was discovered by a Japanese cardiovascular expert and classified as acquired primary cardiomyopathy by the American Heart Association (AHA) in 1990 and 2006, respectively. Regardless of the extensive research efforts, its pathophysiology is still unclear; therefore, there are no well-established guidelines specifically for treating and managing TTC patients. Increasing evidence suggests that sympatho-adrenergic stimulation is strongly associated with the pathogenesis of this disease. Under acute stressful conditions, the hyperstimulation of beta-adrenergic receptors (β-ARs) resulting from excessive release of catecholamines induces intracellular kinases capable of phosphorylating and activating “A Disintegrin and Metalloprotease 17” (ADAM17), a type-I transmembrane protease that plays a central role in acute myocardial inflammation and metabolic lipids dysregulation which are the main hallmarks of TTC. However, our understanding of this is limited; hence this concise review provides a comprehensive insight into the key role of ADAM17 in acute myocardial inflammation and metabolic lipids dysregulation during acute stress. Also, how the synergy of ADAM17-induced acute inflammation and lipids dysregulation causes TTC is explained. Finally, potential therapeutic targets for TTC are also discussed.
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Affiliation(s)
| | | | | | | | - Richard Mprah
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
| | - Aisha Bushi
- Department of Medicine, Xuzhou Medical University, Xuzhou, China
| | - Nazma Akhter
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
| | - Yaxin Xu
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
| | - Fei Huang
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
| | | | - Hong Sun
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
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16
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Lora J, Weskamp G, Li TM, Maretzky T, Shola DTN, Monette S, Lichtenthaler SF, Lu TT, Yang C, Blobel CP. Targeted truncation of the ADAM17 cytoplasmic domain in mice results in protein destabilization and a hypomorphic phenotype. J Biol Chem 2021; 296:100733. [PMID: 33957124 PMCID: PMC8191336 DOI: 10.1016/j.jbc.2021.100733] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 04/21/2021] [Accepted: 04/28/2021] [Indexed: 12/28/2022] Open
Abstract
A disintegrin and metalloprotease 17 (ADAM17) is a cell-surface metalloprotease that serves as the principle sheddase for tumor necrosis factor α (TNFα), interleukin-6 receptor (IL-6R), and several ligands of the epidermal growth factor receptor (EGFR), regulating these crucial signaling pathways. ADAM17 activation requires its transmembrane domain, but not its cytoplasmic domain, and little is known about the role of this domain in vivo. To investigate, we used CRISPR-Cas9 to mutate the endogenous Adam17 locus in mice to produce a mutant ADAM17 lacking its cytoplasmic domain (Adam17Δcyto). Homozygous Adam17Δcyto animals were born at a Mendelian ratio and survived into adulthood with slightly wavy hair and curled whiskers, consistent with defects in ADAM17/EGFR signaling. At birth, Adam17Δcyto mice resembled Adam17−/− mice in that they had open eyes and enlarged semilunar heart valves, but they did not have bone growth plate defects. The deletion of the cytoplasmic domain resulted in strongly decreased ADAM17 protein levels in all tissues and cells examined, providing a likely cause for the hypomorphic phenotype. In functional assays, Adam17Δcyto mouse embryonic fibroblasts and bone-marrow-derived macrophages had strongly reduced ADAM17 activity, consistent with the reduced protein levels. Nevertheless, ADAM17Δcyto could be stimulated by PMA, a well-characterized posttranslational activator of ADAM17, corroborating that the cytoplasmic domain of endogenous ADAM17 is not required for its rapid response to PMA. Taken together, these results provide the first evidence that the cytoplasmic domain of ADAM17 plays a pivotal role in vivo in regulating ADAM17 levels and function.
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Affiliation(s)
- Jose Lora
- Physiology, Biophysics and Systems Biology Program, Weill Cornell Medicine, New York, New York, USA; Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, New York, USA
| | - Gisela Weskamp
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, New York, USA
| | - Thomas M Li
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, New York, USA
| | - Thorsten Maretzky
- Inflammation Program and Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Dorjee T N Shola
- CRISPR and Genome Editing Resource Center, Rockefeller University, New York, New York, USA
| | - Sébastien Monette
- Tri-Institutional Laboratory of Comparative Pathology, Sloan-Kettering Institute, New York, New York, USA
| | - Stefan F Lichtenthaler
- German Center for Neurodegenerative Diseases (DZNE), Technical University of Munich, Munich, Germany; Neuroproteomics, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Technical University of Munich, Munich, Germany; Institute for Advanced Study, Technical University of Munich, Garching, Germany
| | - Theresa T Lu
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, New York, USA; Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York, USA
| | - Chingwen Yang
- CRISPR and Genome Editing Resource Center, Rockefeller University, New York, New York, USA
| | - Carl P Blobel
- Physiology, Biophysics and Systems Biology Program, Weill Cornell Medicine, New York, New York, USA; Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, New York, USA; Institute for Advanced Study, Technical University of Munich, Garching, Germany; Department of Medicine, Weill Cornell Medicine, New York, New York, USA; Department of Biophysics, Physiology and Systems Biology, Weill Cornell Medicine, New York, New York, USA.
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17
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Huang H. Proteolytic Cleavage of Receptor Tyrosine Kinases. Biomolecules 2021; 11:biom11050660. [PMID: 33947097 PMCID: PMC8145142 DOI: 10.3390/biom11050660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/15/2021] [Accepted: 04/26/2021] [Indexed: 01/18/2023] Open
Abstract
The receptor tyrosine kinases (RTKs) are a large family of cell-surface receptors, which are essential components of signal transduction pathways. There are more than fifty human RTKs that can be grouped into multiple RTK subfamilies. RTKs mediate cellular signaling transduction, and they play important roles in the regulation of numerous cellular processes. The dysregulation of RTK signaling is related to various human diseases, including cancers. The proteolytic cleavage phenomenon has frequently been found among multiple receptor tyrosine kinases. More and more information about proteolytic cleavage in RTKs has been discovered, providing rich insight. In this review, we summarize research about different aspects of RTK cleavage, including its relation to cancer, to better elucidate this phenomenon. This review also presents proteolytic cleavage in various members of the RTKs.
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Affiliation(s)
- Hao Huang
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; or
- Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
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18
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Simultaneous readout of multiple FRET pairs using photochromism. Nat Commun 2021; 12:2005. [PMID: 33790271 PMCID: PMC8012603 DOI: 10.1038/s41467-021-22043-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 02/17/2021] [Indexed: 01/11/2023] Open
Abstract
Förster resonant energy transfer (FRET) is a powerful mechanism to probe associations in situ. Simultaneously performing more than one FRET measurement can be challenging due to the spectral bandwidth required for the donor and acceptor fluorophores. We present an approach to distinguish overlapping FRET pairs based on the photochromism of the donor fluorophores, even if the involved fluorophores display essentially identical absorption and emission spectra. We develop the theory underlying this method and validate our approach using numerical simulations. To apply our system, we develop rsAKARev, a photochromic biosensor for cAMP-dependent protein kinase (PKA), and combine it with the spectrally-identical biosensor EKARev, a reporter for extracellular signal-regulated kinase (ERK) activity, to deliver simultaneous readout of both activities in the same cell. We further perform multiplexed PKA, ERK, and calcium measurements by including a third, spectrally-shifted biosensor. Our work demonstrates that exploiting donor photochromism in FRET can be a powerful approach to simultaneously read out multiple associations within living cells. Performing multiple FRET measurements at once can be challenging. Here the authors report a method to discriminate between overlapping FRET pairs, even if the fluorophores display almost identical absorption and emission spectra, based on the photochromism of the donor fluorophores.
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19
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Soond SM, Savvateeva LV, Makarov VA, Gorokhovets NV, Townsend PA, Zamyatnin AA. Cathepsin S Cleaves BAX as a Novel and Therapeutically Important Regulatory Mechanism for Apoptosis. Pharmaceutics 2021; 13:pharmaceutics13030339. [PMID: 33807987 PMCID: PMC8035670 DOI: 10.3390/pharmaceutics13030339] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/08/2021] [Accepted: 03/01/2021] [Indexed: 12/11/2022] Open
Abstract
Certain lysosomal cathepsin proteins have come into focus as being good candidates for therapeutic targeting, based on them being over-expressed in a variety of cancers and based on their regulation of the apoptotic pathway. Here, we report novel findings that highlight the ability of cathepsin S expression to be up-regulated under Paclitaxel-stimulatory conditions in kidney cell lines and it being able to cleave the apoptotic p21 BAX protein in intact cells and in vitro. Consistent with this, we demonstrate that this effect can be abrogated in vitro and in mammalian cells under conditions that utilize dominant-inhibitory cathepsin S expression, cathepsin S expression-knockdown and through the activity of a novel peptide inhibitor, CS-PEP1. Moreover, we report a unique role for cathepsin S in that it can cleave a polyubiquitinated-BAX protein intermediate and is a step that may contribute to down-regulating post-translationally-modified levels of BAX protein. Finally, CS-PEP1 may possess promising activity as a potential anti-cancer therapeutic against chemotherapeutic-resistant Renal Clear Cell Carcinoma kidney cancer cells and for combined uses with therapeutics such as Paclitaxel.
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Affiliation(s)
- Surinder M. Soond
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Trubetskaya Str. 8-2, 119991 Moscow, Russia; (L.V.S.); (V.A.M.); (N.V.G.)
- Correspondence: (S.M.S.); (A.A.Z.J.)
| | - Lyudmila V. Savvateeva
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Trubetskaya Str. 8-2, 119991 Moscow, Russia; (L.V.S.); (V.A.M.); (N.V.G.)
| | - Vladimir A. Makarov
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Trubetskaya Str. 8-2, 119991 Moscow, Russia; (L.V.S.); (V.A.M.); (N.V.G.)
| | - Neonila V. Gorokhovets
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Trubetskaya Str. 8-2, 119991 Moscow, Russia; (L.V.S.); (V.A.M.); (N.V.G.)
| | - Paul A. Townsend
- Division of Cancer Sciences and Manchester Cancer Research Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK;
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey GU2 7X, UK
| | - Andrey A. Zamyatnin
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Trubetskaya Str. 8-2, 119991 Moscow, Russia; (L.V.S.); (V.A.M.); (N.V.G.)
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Department of Biotechnology, Sirius University of Science and Technology, 1 Olympic Ave, 354340 Sochi, Russia
- Correspondence: (S.M.S.); (A.A.Z.J.)
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20
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Bunker EN, Wheeler GE, Chapnick DA, Liu X. Suppression of α-catenin and adherens junctions enhances epithelial cell proliferation and motility via TACE-mediated TGF-α autocrine/paracrine signaling. Mol Biol Cell 2020; 32:348-361. [PMID: 33378218 PMCID: PMC8098817 DOI: 10.1091/mbc.e19-08-0474] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Sustained cell migration is essential for wound healing and cancer metastasis. The epidermal growth factor receptor (EGFR) signaling cascade is known to drive cell migration and proliferation. While the signal transduction downstream of EGFR has been extensively investigated, our knowledge of the initiation and maintenance of EGFR signaling during cell migration remains limited. The metalloprotease TACE (tumor necrosis factor alpha converting enzyme) is responsible for producing active EGFR family ligands in the via ligand shedding. Sustained TACE activity may perpetuate EGFR signaling and reduce a cell’s reliance on exogenous growth factors. Using a cultured keratinocyte model system, we show that depletion of α-catenin perturbs adherens junctions, enhances cell proliferation and motility, and decreases dependence on exogenous growth factors. We show that the underlying mechanism for these observed phenotypical changes depends on enhanced autocrine/paracrine release of the EGFR ligand transforming growth factor alpha in a TACE-dependent manner. We demonstrate that proliferating keratinocyte epithelial cell clusters display waves of oscillatory extracellular signal–regulated kinase (ERK) activity, which can be eliminated by TACE knockout, suggesting that these waves of oscillatory ERK activity depend on autocrine/paracrine signals produced by TACE. These results provide new insights into the regulatory role of adherens junctions in initiating and maintaining autocrine/paracrine signaling with relevance to wound healing and cellular transformation.
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Affiliation(s)
- Eric N Bunker
- Department of Biochemistry, University of Colorado, Boulder, CO 80303
| | - Graycen E Wheeler
- Department of Biochemistry, University of Colorado, Boulder, CO 80303
| | | | - Xuedong Liu
- Department of Biochemistry, University of Colorado, Boulder, CO 80303
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21
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Babendreyer A, Rojas-González DM, Giese AA, Fellendorf S, Düsterhöft S, Mela P, Ludwig A. Differential Induction of the ADAM17 Regulators iRhom1 and 2 in Endothelial Cells. Front Cardiovasc Med 2020; 7:610344. [PMID: 33335915 PMCID: PMC7736406 DOI: 10.3389/fcvm.2020.610344] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/10/2020] [Indexed: 12/23/2022] Open
Abstract
Background: Endothelial function significantly depends on the proteolytic release of surface expressed signal molecules, their receptors and adhesion molecules via the metalloproteinase ADAM17. The pseudoproteases iRhom1 and 2 independently function as adapter proteins for ADAM17 and are essential for the maturation, trafficking, and activity regulation of ADAM17. Bioinformatic data confirmed that immune cells predominantly express iRhom2 while endothelial cells preferentially express iRhom1. Objective: Here, we investigate possible reasons for higher iRhom1 expression and potential inflammatory regulation of iRhom2 in endothelial cells and analyze the consequences for ADAM17 maturation and function. Methods: Primary endothelial cells were cultured in absence and presence of flow with and without inflammatory cytokines (TNFα and INFγ). Regulation of iRhoms was studied by qPCR, involved signaling pathways were studied with transcriptional inhibitors and consequences were analyzed by assessment of ADAM17 maturation, surface expression and cleavage of the ADAM17 substrate junctional adhesion molecule JAM-A. Results: Endothelial iRhom1 is profoundly upregulated by physiological shear stress. This is accompanied by a homeostatic phenotype driven by the transcription factor KLF2 which is, however, only partially responsible for regulation of iRhom1. By contrast, iRhom2 is most prominently upregulated by inflammatory cytokines. This correlates with an inflammatory phenotype driven by the transcription factors NFκB and AP-1 of which AP-1 is most relevant for iRhom2 regulation. Finally, shear stress exposure and inflammatory stimulation have independent and no synergistic effects on ADAM17 maturation, surface expression and JAM-A shedding. Conclusion: Conditions of shear stress and inflammation differentially upregulate iRhom1 and 2 in primary endothelial cells which then results in independent regulation of ADAM17.
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Affiliation(s)
- Aaron Babendreyer
- Institute of Molecular Pharmacology, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Diana M Rojas-González
- Department of Mechanical Engineering, Munich School of BioEngineering, Technical University of Munich, Garching, Germany
| | - Anja Adelina Giese
- Institute of Molecular Pharmacology, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Sandra Fellendorf
- Institute of Molecular Pharmacology, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Stefan Düsterhöft
- Institute of Molecular Pharmacology, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Petra Mela
- Department of Mechanical Engineering, Munich School of BioEngineering, Technical University of Munich, Garching, Germany
| | - Andreas Ludwig
- Institute of Molecular Pharmacology, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
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22
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Ou SC, Bai KJ, Cheng WH, Chen JY, Lin CH, Wen HC, Chen BC. TGF-β Induced CTGF Expression in Human Lung Epithelial Cells through ERK, ADAM17, RSK1, and C/EBPβ Pathways. Int J Mol Sci 2020; 21:ijms21239084. [PMID: 33260349 PMCID: PMC7731197 DOI: 10.3390/ijms21239084] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 12/15/2022] Open
Abstract
Background: Lung epithelial cells play critical roles in idiopathic pulmonary fibrosis. Methods: In the present study, we investigated whether transforming growth factor-β (TGF-β)-induced expression of connective tissue growth factor (CTGF) was regulated by the extracellular signal-regulated kinase (ERK)/a disintegrin and metalloproteinase 17 (ADAM17)/ribosomal S6 kinases 1 (RSK1)/CCAAT/enhancer-binding protein β (C/EBPβ) signaling pathway in human lung epithelial cells (A549). Results: Our results revealed that TGF-β-induced CTGF expression was weakened by ADAM17 small interfering RNA (ADAM17 siRNA), TNF-α processing inhibitor-0 (TAPI-0, an ADAM17 inhibitor), U0126 (an ERK inhibitor), RSK1 siRNA, and C/EBPβ siRNA. TGF-β-induced ERK phosphorylation as well as ADAM17 phosphorylation was attenuated by U0126. The TGF-β-induced increase in RSK1 phosphorylation was inhibited by TAPI-0 and U0126. TGF-β-induced C/EBPβ phosphorylation was weakened by U0126, ADAM17 siRNA, and RSK1 siRNA. In addition, TGF-β increased the recruitment of C/EBPβ to the CTGF promoter. Furthermore, TGF-β enhanced fibronectin (FN), an epithelial–mesenchymal transition (EMT) marker, and CTGF mRNA levels and reduced E-cadherin mRNA levels. Moreover, TGF-β-stimulated FN protein expression was reduced by ADAM17 siRNA and CTGF siRNA. Conclusion: The results suggested that TGF-β induces CTGF expression through the ERK/ADAM17/RSK1/C/EBPβ signaling pathway. Moreover, ADAM17 and CTGF participate in TGF-β-induced FN expression in human lung epithelial cells.
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Affiliation(s)
- Shu-Ching Ou
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (S.-C.O.); (K.-J.B.); (H.-C.W.)
| | - Kuan-Jen Bai
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (S.-C.O.); (K.-J.B.); (H.-C.W.)
- Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 110, Taiwan
| | - Wun-Hao Cheng
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (W.-H.C.); (J.-Y.C.); (C.-H.L.)
- Respiratory Therapy, Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 110, Taiwan
| | - Jing-Yun Chen
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (W.-H.C.); (J.-Y.C.); (C.-H.L.)
| | - Chien-Huang Lin
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (W.-H.C.); (J.-Y.C.); (C.-H.L.)
| | - Heng-Ching Wen
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (S.-C.O.); (K.-J.B.); (H.-C.W.)
| | - Bing-Chang Chen
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (S.-C.O.); (K.-J.B.); (H.-C.W.)
- Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 110, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (W.-H.C.); (J.-Y.C.); (C.-H.L.)
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: ; Tel.: +886-2-27361661; Fax: +886-2-27391143
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23
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Functional Characterization of Colon-Cancer-Associated Variants in ADAM17 Affecting the Catalytic Domain. Biomedicines 2020; 8:biomedicines8110463. [PMID: 33143292 PMCID: PMC7692748 DOI: 10.3390/biomedicines8110463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/17/2020] [Accepted: 10/29/2020] [Indexed: 12/24/2022] Open
Abstract
Although extensively investigated, cancer is still one of the most devastating and lethal diseases in the modern world. Among different types, colorectal cancer (CRC) is most prevalent and mortal, making it an important subject of research. The metalloprotease ADAM17 has been implicated in the development of CRC due to its involvement in signaling pathways related to inflammation and cell proliferation. ADAM17 is capable of releasing membrane-bound proteins from the cell surface in a process called shedding. A deficiency of ADAM17 activity has been previously shown to have protective effects against CRC in mice, while an upregulation of ADAM17 activity is suspected to facilitate tumor development. In this study, we characterize ADAM17 variants found in tissue samples of cancer patients in overexpression studies. We here focus on point mutations identified within the catalytic domain of ADAM17 and could show a functional dysregulation of the CRC-associated variants. Since the catalytic domain of ADAM17 is the only region structurally determined by crystallography, we study the effect of each point mutation not only to learn more about the role of ADAM17 in cancer, but also to investigate the structure–function relationships of the metalloprotease.
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24
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Okitsu-Sakurayama S, Higa-Nakamine S, Torihara H, Higashiyama S, Yamamoto H. Roles of Pyk2 in signal transduction after gonadotropin-releasing hormone receptor stimulation. J Cell Physiol 2020; 236:3033-3043. [PMID: 32984962 DOI: 10.1002/jcp.30077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/03/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022]
Abstract
The receptor for gonadotropin-releasing hormone (GnRH) is highly expressed in hypothalamic neurons. It has been reported that GnRH treatment of cultured GnRH neurons (GT1-7 cells) activated proline-rich tyrosine kinase 2 (Pyk2), and Pyk2 was involved in the activation of extracellular signal-regulated protein kinase 1 (ERK1) and ERK2 (ERK1/2). In the present study, we first examined the possibility that GnRH treatment might activate epidermal growth factor receptor (EGFR). We found that activation of EGFR after GnRH treatment for 5 min was much less than after EGF or heparin-binding EGF treatment. Next, we examined whether or not Pyk2 bound to growth factor receptor-binding protein 2 (Grb2). We overexpressed FLAG-fused Pyk2 in GT1-7 cells, and immunoprecipitated Pyk2 using an anti-FLAG antibody. The binding of Pyk2 to Grb2 was detected only after GnRH treatment. In contrast, a site-directed mutant of Pyk2 wherein tyrosine 881 was mutated to phenylalanine did not bind to Grb2. Studies with small interfering RNA and inhibitors indicated that the activation of Grb2/Ras/Raf/MEK was a major pathway to ERK1/2 activation after the short-term treatment of GT1-7 cells with GnRH.
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Affiliation(s)
- Shiho Okitsu-Sakurayama
- Department of Biochemistry, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | | | - Hidetsugu Torihara
- Department of Biochemistry, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Department of Biochemistry and Molecular Genetics, Proteo-Science Center, Ehime University Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Hideyuki Yamamoto
- Department of Biochemistry, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
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25
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Arenas YM, Cabrera-Pastor A, Juciute N, Mora-Navarro E, Felipo V. Blocking glycine receptors reduces neuroinflammation and restores neurotransmission in cerebellum through ADAM17-TNFR1-NF-κβ pathway. J Neuroinflammation 2020; 17:269. [PMID: 32917219 PMCID: PMC7488331 DOI: 10.1186/s12974-020-01941-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/24/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Chronic hyperammonemia induces neuroinflammation in cerebellum, with glial activation and enhanced activation of the TNFR1-NF-kB-glutaminase-glutamate-GABA pathway. Hyperammonemia also increases glycinergic neurotransmission. These alterations contribute to cognitive and motor impairment. Activation of glycine receptors is reduced by extracellular cGMP, which levels are reduced in cerebellum of hyperammonemic rats in vivo. We hypothesized that enhanced glycinergic neurotransmission in hyperammonemic rats (1) contributes to induce neuroinflammation and glutamatergic and GABAergic neurotransmission alterations; (2) is a consequence of the reduced extracellular cGMP levels. The aims were to assess, in cerebellum of hyperammonemic rats, (a) whether blocking glycine receptors with the antagonist strychnine reduces neuroinflammation; (b) the cellular localization of glycine receptor; (c) the effects of blocking glycine receptors on the TNFR1-NF-kB-glutaminase-glutamate-GABA pathway and microglia activation; (d) whether adding extracellular cGMP reproduces the effects of strychnine. METHODS We analyzed in freshly isolated cerebellar slices from control or hyperammonemic rats the effects of strychnine on activation of microglia and astrocytes, the content of TNFa and IL1b, the surface expression of ADAM17, TNFR1 and transporters, the phosphorylation levels of ERK, p38 and ADAM17. The cellular localization of glycine receptor was assessed by immunofluorescence. We analyzed the content of TNFa, IL1b, HMGB1, glutaminase, and the level of TNF-a mRNA and NF-κB in Purkinje neurons. Extracellular concentrations of glutamate and GABA were performed by in vivo microdialysis in cerebellum. We tested whether extracellular cGMP reproduces the effects of strychnine in ex vivo cerebellar slices. RESULTS Glycine receptors are expressed mainly in Purkinje cells. In hyperammonemic rats, enhanced glycinergic neurotransmission leads to reduced membrane expression of ADAM17, resulting in increased surface expression and activation of TNFR1 and of the associated NF-kB pathway. This increases the expression in Purkinje neurons of TNFa, IL-1b, HMGB1, and glutaminase. Increased glutaminase activity leads to increased extracellular glutamate, which increases extracellular GABA. Increased extracellular glutamate and HMGB1 potentiate microglial activation. Blocking glycine receptors with strychnine or extracellular cGMP completely prevents the above pathway in hyperammonemic rats. CONCLUSIONS Glycinergic neurotransmission modulates neuroinflammation. Enhanced glycinergic neurotransmission in hyperammonemia would be due to reduced extracellular cGMP. These results shed some light on possible new therapeutic target pathways for pathologies associated to neuroinflammation.
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Affiliation(s)
- Yaiza M Arenas
- Laboratory of Neurobiology, Príncipe Felipe Research Center Valencia, C/Eduardo Primo Yúfera 3, 46012, Valencia, Spain
| | - Andrea Cabrera-Pastor
- Laboratory of Neurobiology, Príncipe Felipe Research Center Valencia, C/Eduardo Primo Yúfera 3, 46012, Valencia, Spain.
- Laboratory of Neurological Impairment, Health Research Institute INCLIVA, 46010, Valencia, Spain.
| | - Nora Juciute
- Laboratory of Neurobiology, Príncipe Felipe Research Center Valencia, C/Eduardo Primo Yúfera 3, 46012, Valencia, Spain
| | - Eloy Mora-Navarro
- Laboratory of Neurobiology, Príncipe Felipe Research Center Valencia, C/Eduardo Primo Yúfera 3, 46012, Valencia, Spain
| | - Vicente Felipo
- Laboratory of Neurobiology, Príncipe Felipe Research Center Valencia, C/Eduardo Primo Yúfera 3, 46012, Valencia, Spain
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iRhom2: An Emerging Adaptor Regulating Immunity and Disease. Int J Mol Sci 2020; 21:ijms21186570. [PMID: 32911849 PMCID: PMC7554728 DOI: 10.3390/ijms21186570] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/26/2020] [Accepted: 09/02/2020] [Indexed: 02/06/2023] Open
Abstract
The rhomboid family are evolutionary conserved intramembrane proteases. Their inactive members, iRhom in Drosophila melanogaster and iRhom1 and iRhom2 in mammals, lack the catalytic center and are hence labelled “inactive” rhomboid family members. In mammals, both iRhoms are involved in maturation and trafficking of the ubiquitous transmembrane protease a disintegrin and metalloprotease (ADAM) 17, which through cleaving many biologically active molecules has a critical role in tumor necrosis factor alpha (TNFα), epidermal growth factor receptor (EGFR), interleukin-6 (IL-6) and Notch signaling. Accordingly, with iRhom2 having a profound influence on ADAM17 activation and substrate specificity it regulates these signaling pathways. Moreover, iRhom2 has a role in the innate immune response to both RNA and DNA viruses and in regulation of keratin subtype expression in wound healing and cancer. Here we review the role of iRhom2 in immunity and disease, both dependent and independent of its regulation of ADAM17.
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27
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Schumacher N, Rose-John S, Schmidt-Arras D. ADAM-Mediated Signalling Pathways in Gastrointestinal Cancer Formation. Int J Mol Sci 2020; 21:ijms21145133. [PMID: 32698506 PMCID: PMC7404302 DOI: 10.3390/ijms21145133] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/10/2020] [Accepted: 07/15/2020] [Indexed: 02/06/2023] Open
Abstract
Tumour growth is not solely driven by tumour cell-intrinsic mechanisms, but also depends on paracrine signals provided by the tumour micro-environment. These signals comprise cytokines and growth factors that are synthesized as trans-membrane proteins and need to be liberated by limited proteolysis also termed ectodomain shedding. Members of the family of A disintegrin and metalloproteases (ADAM) are major mediators of ectodomain shedding and therefore initiators of paracrine signal transduction. In this review, we summarize the current knowledge on how ADAM proteases on tumour cells but also on cells of the tumour micro-environment contribute to the formation of gastrointestinal tumours, and discuss how these processes can be exploited pharmacologically.
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28
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Yamaguchi R, Haraguchi M, Yamaguchi R, Sakamoto A, Narahara S, Sugiuchi H, Yamaguchi Y. TRIM28/TIF1β and Fli-1 negatively regulate peroxynitrite generation via DUOX2 to decrease the shedding of membrane-bound fractalkine in human macrophages after exposure to substance P. Cytokine 2020; 134:155180. [PMID: 32673994 DOI: 10.1016/j.cyto.2020.155180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/15/2020] [Accepted: 06/15/2020] [Indexed: 11/25/2022]
Abstract
The chemokine fractalkine is synthesized as a membrane-bound protein, but studies have shown that serum levels of soluble fractalkine are elevated in inflammatory and autoimmune diseases. Patients with autoimmune diseases also have increased serum levels of neuropeptide substance P (SP). The shedding activity of the ADAM family is induced by peroxynitrite, but that of SP is unclear. Treatment of human macrophages with SP upregulated levels of membrane-bound fractalkine. Interestingly, small interfering RNA (siRNA) for DUOX2 further increased membrane-bound fractalkine but decreased soluble fractalkine compared with cells treated with SP alone. SP induced nitric oxide 2/inducible nitric oxide synthase (NOS2/iNOS) mRNA and increased levels of nitrotyrosine, a biomarker of peroxynitrite, whereas transfection with DUOX2 siRNA blunted upregulation of nitrotyrosine. Most importantly, N(ω)-nitro-L-arginine methyl ester (L-NAME, a nitric oxide synthase inhibitor) decreased protein levels of nitrotyrosine and concomitantly increased expression of membrane-bound fractalkine after exposure to SP. As for the signaling pathway of TGFβ1 (an inhibitor of iNOS mRNA expression), silencing of RNA for TAK-1 upregulated membrane-bound fractalkine, but silencing of RNA for the Smad family did not. Interfering RNA of transcription factor specificity protein 1 (Sp1) upregulated protein levels of TGFβ1/LAP. Most importantly, double transfection with siRNA for Sp1 and TRIM28/TIF1βor Fli-1 led to a significant increase in TGFβ1/LAP levels and a corresponding reduction of NOS2/iNOS, which inhibited the shedding of membrane-bound fractalkine. In conclusion, TRIM28/TIF1β and Fli-1 negatively regulate TGFβ1 expression to upregulate the generation of peroxynitrite, leading to increased shedding of membrane-bound fractalkine induced by SP.
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Affiliation(s)
- Rui Yamaguchi
- Graduate School of Medical Science, Kumamoto Health Science University, Kitaku Izumi-machi 325 Kumamoto 861-5598, Japan
| | - Misa Haraguchi
- Graduate School of Medical Science, Kumamoto Health Science University, Kitaku Izumi-machi 325 Kumamoto 861-5598, Japan
| | - Reona Yamaguchi
- Department of Neuroscience, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Yoshida-konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Arisa Sakamoto
- Graduate School of Medical Science, Kumamoto Health Science University, Kitaku Izumi-machi 325 Kumamoto 861-5598, Japan
| | - Shinji Narahara
- Graduate School of Medical Science, Kumamoto Health Science University, Kitaku Izumi-machi 325 Kumamoto 861-5598, Japan
| | - Hiroyuki Sugiuchi
- Graduate School of Medical Science, Kumamoto Health Science University, Kitaku Izumi-machi 325 Kumamoto 861-5598, Japan
| | - Yasuo Yamaguchi
- Graduate School of Medical Science, Kumamoto Health Science University, Kitaku Izumi-machi 325 Kumamoto 861-5598, Japan.
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29
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Njunge LW, Estania AP, Guo Y, Liu W, Yang L. Tumor progression locus 2 (TPL2) in tumor-promoting Inflammation, Tumorigenesis and Tumor Immunity. Am J Cancer Res 2020; 10:8343-8364. [PMID: 32724474 PMCID: PMC7381748 DOI: 10.7150/thno.45848] [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: 03/10/2020] [Accepted: 06/03/2020] [Indexed: 12/15/2022] Open
Abstract
Over the years, tumor progression locus 2 (TPL2) has been identified as an essential modulator of immune responses that conveys inflammatory signals to downstream effectors, subsequently modulating the generation and function of inflammatory cells. TPL2 is also differentially expressed and activated in several cancers, where it is associated with increased inflammation, malignant transformation, angiogenesis, metastasis, poor prognosis and therapy resistance. However, the relationship between TPL2-driven inflammation, tumorigenesis and tumor immunity has not been addressed. Here, we reconcile the function of TPL2-driven inflammation to oncogenic functions such as inflammation, proliferation, apoptosis resistance, angiogenesis, metastasis, immunosuppression and immune evasion. We also address the controversies reported on TPL2 function in tumor-promoting inflammation and tumorigenesis, and highlight the potential role of the TPL2 adaptor function in regulating the mechanisms leading to pro-tumorigenic inflammation and tumor progression. We discuss the therapeutic implications and limitations of targeting TPL2 for cancer treatment. The ideas presented here provide some new insight into cancer pathophysiology that might contribute to the development of more integrative and specific anti-inflammatory and anti-cancer therapeutics.
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30
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Shafei MA, Forshaw T, Davis J, Flemban A, Qualtrough D, Dean S, Perks C, Dong M, Newman R, Conway ME. BCATc modulates crosstalk between the PI3K/Akt and the Ras/ERK pathway regulating proliferation in triple negative breast cancer. Oncotarget 2020; 11:1971-1987. [PMID: 32523652 PMCID: PMC7260123 DOI: 10.18632/oncotarget.27607] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 04/14/2020] [Indexed: 12/12/2022] Open
Abstract
The cytosolic branched chain aminotransferase (BCATc) protein has been found to be highly expressed in breast cancer subtypes, including triple negative breast cancer (TNBC), compared with normal breast tissue. The catabolism of branched-chain amino acids (BCAAs) by BCATc leads to the production of glutamate and key metabolites which further drive the TCA cycle, important for cellular metabolism and growth. Upregulation of BCATc has been associated with increased cell proliferation, cell cycle progression and metastasis in several malignancies including breast, gliomas, ovarian and colorectal cancer but the underlying mechanisms are unclear. As nutrient levels of BCAAs, substrates of BCATc, regulate the PI3K/Akt pathway we hypothesized that increased expression of BCATc would contribute to tumour cell growth through upregulation of the insulin/IGF-1 signalling pathway. This pathway is known to potentiate proliferation and metastasis of malignant cells through the activation of PI3K/Akt and the RAS/ERK signalling cascades. Here we show that knockdown of BCATc significantly reduced insulin and IGF-1-mediated proliferation, migration and invasion of TNBC cells. An analysis of this pathway showed that when overexpressed BCATc regulates proliferation through the PI3K/Akt axis, whilst simultaneously attenuating the Ras/Erk pathway indicating that BCATc acts as a conduit between these two pathways. This ultimately led to an increase in FOXO3a, a key regulator of cell proliferation and Nrf2, which mediates redox homeostasis. Together this data indicates that BCATc regulates TNBC cell proliferation, migration and invasion through the IGF-1/insulin PI3K/Akt pathway, culminating in the upregulation of FOXO3a and Nrf2, pointing to a novel therapeutic target for breast cancer treatment.
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Affiliation(s)
- Mai Ahmed Shafei
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - Thomas Forshaw
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - Jasmine Davis
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - Arwa Flemban
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - David Qualtrough
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - Sarah Dean
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
| | - Claire Perks
- IGFs and Metabolic Endocrinology Group, University of Bristol, Bristol Medical School, Bristol, UK
| | - Ming Dong
- Department of Chemistry, North Carolina Agricultural and Technical State University, Greensboro, NC, USA
| | - Robert Newman
- Department of Biology, North Carolina Agricultural and Technical State University, Greensboro, NC, USA
| | - Myra Elizabeth Conway
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbor Lane, Bristol, UK
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31
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Kruse T, Gnosa SP, Nasa I, Garvanska DH, Hein JB, Nguyen H, Samsøe-Petersen J, Lopez-Mendez B, Hertz EPT, Schwarz J, Pena HS, Nikodemus D, Kveiborg M, Kettenbach AN, Nilsson J. Mechanisms of site-specific dephosphorylation and kinase opposition imposed by PP2A regulatory subunits. EMBO J 2020; 39:e103695. [PMID: 32400009 PMCID: PMC7327492 DOI: 10.15252/embj.2019103695] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 04/03/2020] [Accepted: 04/21/2020] [Indexed: 12/11/2022] Open
Abstract
PP2A is an essential protein phosphatase that regulates most cellular processes through the formation of holoenzymes containing distinct regulatory B‐subunits. Only a limited number of PP2A‐regulated phosphorylation sites are known. This hampers our understanding of the mechanisms of site‐specific dephosphorylation and of its tumor suppressor functions. Here, we develop phosphoproteomic strategies for global substrate identification of PP2A‐B56 and PP2A‐B55 holoenzymes. Strikingly, we find that B‐subunits directly affect the dephosphorylation site preference of the PP2A catalytic subunit, resulting in unique patterns of kinase opposition. For PP2A‐B56, these patterns are further modulated by affinity and position of B56 binding motifs. Our screens identify phosphorylation sites in the cancer target ADAM17 that are regulated through a conserved B56 binding site. Binding of PP2A‐B56 to ADAM17 protease decreases growth factor signaling and tumor development in mice. This work provides a roadmap for the identification of phosphatase substrates and reveals unexpected mechanisms governing PP2A dephosphorylation site specificity and tumor suppressor function.
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Affiliation(s)
- Thomas Kruse
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sebastian Peter Gnosa
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Isha Nasa
- Biochemistry and Cell Biology, Geisel School of Medicine at Dartmouth College, Hanover, NH, USA.,Norris Cotton Cancer Center, Lebanon, NH, USA
| | - Dimitriya Hristoforova Garvanska
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jamin B Hein
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Hieu Nguyen
- Biochemistry and Cell Biology, Geisel School of Medicine at Dartmouth College, Hanover, NH, USA.,Norris Cotton Cancer Center, Lebanon, NH, USA
| | - Jacob Samsøe-Petersen
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Blanca Lopez-Mendez
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Emil Peter Thrane Hertz
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jeanette Schwarz
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Hanna Sofia Pena
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Denise Nikodemus
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Marie Kveiborg
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Arminja N Kettenbach
- Biochemistry and Cell Biology, Geisel School of Medicine at Dartmouth College, Hanover, NH, USA.,Norris Cotton Cancer Center, Lebanon, NH, USA
| | - Jakob Nilsson
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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32
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Saad MI, Alhayyani S, McLeod L, Yu L, Alanazi M, Deswaerte V, Tang K, Jarde T, Smith JA, Prodanovic Z, Tate MD, Balic JJ, Watkins DN, Cain JE, Bozinovski S, Algar E, Kohmoto T, Ebi H, Ferlin W, Garbers C, Ruwanpura S, Sagi I, Rose-John S, Jenkins BJ. ADAM17 selectively activates the IL-6 trans-signaling/ERK MAPK axis in KRAS-addicted lung cancer. EMBO Mol Med 2020; 11:emmm.201809976. [PMID: 30833304 PMCID: PMC6460353 DOI: 10.15252/emmm.201809976] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Oncogenic KRAS mutations are major drivers of lung adenocarcinoma (LAC), yet the direct therapeutic targeting of KRAS has been problematic. Here, we reveal an obligate requirement by oncogenic KRAS for the ADAM17 protease in LAC In genetically engineered and xenograft (human cell line and patient-derived) Kras G12D-driven LAC models, the specific blockade of ADAM17, including with a non-toxic prodomain inhibitor, suppressed tumor burden by reducing cellular proliferation. The pro-tumorigenic activity of ADAM17 was dependent upon its threonine phosphorylation by p38 MAPK, along with the preferential shedding of the ADAM17 substrate, IL-6R, to release soluble IL-6R that drives IL-6 trans-signaling via the ERK1/2 MAPK pathway. The requirement for ADAM17 in Kras G12D-driven LAC was independent of bone marrow-derived immune cells. Furthermore, in KRAS mutant human LAC, there was a significant positive correlation between augmented phospho-ADAM17 levels, observed primarily in epithelial rather than immune cells, and activation of ERK and p38 MAPK pathways. Collectively, these findings identify ADAM17 as a druggable target for oncogenic KRAS-driven LAC and provide the rationale to employ ADAM17-based therapeutic strategies for targeting KRAS mutant cancers.
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Affiliation(s)
- Mohamed I Saad
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
| | - Sultan Alhayyani
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
| | - Louise McLeod
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
| | - Liang Yu
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
| | - Mohammad Alanazi
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
| | - Virginie Deswaerte
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
| | - Ke Tang
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
| | - Thierry Jarde
- Cancer Program, Monash Biomedicine Discovery Institute, Clayton, Vic., Australia.,Department of Anatomy and Developmental Biology, Monash University, Clayton, Vic., Australia.,Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, Vic., Australia
| | - Julian A Smith
- Department of Surgery, School of Clinical Sciences at Monash Health, Monash University, Clayton, Vic., Australia.,Department of Cardiothoracic Surgery, Monash Health, Clayton, Vic., Australia
| | | | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
| | - Jesse J Balic
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
| | - D Neil Watkins
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
| | - Jason E Cain
- Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia.,Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, Vic., Australia
| | - Steven Bozinovski
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Vic., Australia
| | - Elizabeth Algar
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Genetics and Molecular Pathology Laboratory, Monash Health, Clayton, Vic., Australia
| | - Tomohiro Kohmoto
- Department of Human Genetics, Tokushima University Graduate School of Medicine, Tokushima, Japan.,Division of Molecular Genetics, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Hiromichi Ebi
- Division of Molecular Therapeutics, Aichi Cancer Center Research Institute, Nagoya, Japan.,Division of Advanced Cancer Therapeutics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Christoph Garbers
- Department of Pathology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | - Saleela Ruwanpura
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia.,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
| | - Irit Sagi
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Stefan Rose-John
- Institute of Biochemistry, Christian-Albrechts-University, Kiel, Germany
| | - Brendan J Jenkins
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic., Australia .,Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Vic., Australia
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Heib M, Rose-John S, Adam D. Necroptosis, ADAM proteases and intestinal (dys)function. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 353:83-152. [PMID: 32381179 DOI: 10.1016/bs.ircmb.2020.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Recently, an unexpected connection between necroptosis and members of the a disintegrin and metalloproteinase (ADAM) protease family has been reported. Necroptosis represents an important cell death routine which helps to protect from viral, bacterial, fungal and parasitic infections, maintains adult T cell homeostasis and contributes to the elimination of potentially defective organisms before parturition. Equally important for organismal homeostasis, ADAM proteases control cellular processes such as development and differentiation, immune responses or tissue regeneration. Notably, necroptosis as well as ADAM proteases have been implicated in the control of inflammatory responses in the intestine. In this review, we therefore provide an overview of the physiology and pathophysiology of necroptosis, ADAM proteases and intestinal (dys)function, discuss the contribution of necroptosis and ADAMs to intestinal (dys)function, and review the current knowledge on the role of ADAMs in necroptotic signaling.
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Affiliation(s)
- Michelle Heib
- Institut für Immunologie, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Stefan Rose-John
- Institut für Biochemie, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Dieter Adam
- Institut für Immunologie, Christian-Albrechts-Universität zu Kiel, Kiel, Germany.
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34
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Tang B, Li X, Maretzky T, Perez-Aguilar JM, McIlwain D, Xie Y, Zheng Y, Mak TW, Weinstein H, Blobel CP. Substrate-selective protein ectodomain shedding by ADAM17 and iRhom2 depends on their juxtamembrane and transmembrane domains. FASEB J 2020; 34:4956-4969. [PMID: 32103528 DOI: 10.1096/fj.201902649r] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 01/09/2020] [Accepted: 01/20/2020] [Indexed: 12/17/2022]
Abstract
The metalloprotease ADAM17 (a disintegrin and metalloprotease 17) regulates EGF-receptor and TNFα signaling, thereby not only protecting the skin and intestinal barrier, but also contributing to autoimmunity. ADAM17 can be rapidly activated by many stimuli through its transmembrane domain (TMD), with the seven membrane-spanning inactive Rhomboids (iRhom) 1 and 2 implicated as candidate regulatory partners. However, several alternative models of ADAM17 regulation exist that do not involve the iRhoms, such as regulation through disulfide bond exchange or through interaction with charged phospholipids. Here, we report that a non-activatable mutant of ADAM17 with the TMD of betacellulin (BTC) can be rescued by restoring residues from the ADAM17 TMD, but only in Adam17-/- cells, which contain iRhoms, not in iRhom1/2-/- cells. We also provide the first evidence that the extracellular juxtamembrane domains (JMDs) of ADAM17 and iRhom2 regulate the stimulation and substrate selectivity of ADAM17. Interestingly, a point mutation in the ADAM17 JMD identified in a patient with Tetralogy of Fallot, a serious heart valve defect, affects the substrate selectivity of ADAM17 toward Heparin-binding epidermal growth factor like growth factor (HB-EGF), a crucial regulator of heart valve development in mice. These findings provide new insights into the regulation of ADAM17 through an essential interaction with the TMD1 and JMD1 of iRhom2.
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Affiliation(s)
- Beiyu Tang
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, NY, USA.,Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA
| | - Xue Li
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, NY, USA.,Department of Biochemistry, Cellular and Molecular Biology, Weill Cornell Medicine, New York, NY, USA
| | - Thorsten Maretzky
- Inflammation Program and Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Jose Manuel Perez-Aguilar
- Department of Physiology, Biophysics and Systems Biology, Weill Cornell Medicine, New York, NY, USA.,School of Chemical Sciences, Meritorious Autonomous University of Puebla (BUAP), Puebla, Mexico
| | - David McIlwain
- Baxter Laboratory in Stem Cell Biology, Department of Microbiology and Immunology, Stanford University, Stanford, CA, USA.,Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Center, University Health Network, Toronto, ON, Canada
| | - Yifang Xie
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, State Key Laboratory of Genetic, Engineering at School of Life Sciences, Fudan University, Shanghai, China.,Key Laboratory of Reproduction Regulation of NPFPC, Collaborative Innovation Center of Genetics and Development, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yufang Zheng
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, State Key Laboratory of Genetic, Engineering at School of Life Sciences, Fudan University, Shanghai, China.,Key Laboratory of Reproduction Regulation of NPFPC, Collaborative Innovation Center of Genetics and Development, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Tak W Mak
- Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Center, University Health Network, Toronto, ON, Canada
| | - Harel Weinstein
- Department of Physiology, Biophysics and Systems Biology, Weill Cornell Medicine, New York, NY, USA
| | - Carl P Blobel
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, NY, USA.,Department of Physiology, Biophysics and Systems Biology, Weill Cornell Medicine, New York, NY, USA.,Institute for Advanced Study, Technical University Munich, Garching, Germany
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35
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Phosphorylation Signaling in APP Processing in Alzheimer's Disease. Int J Mol Sci 2019; 21:ijms21010209. [PMID: 31892243 PMCID: PMC6981488 DOI: 10.3390/ijms21010209] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 12/23/2019] [Accepted: 12/24/2019] [Indexed: 12/13/2022] Open
Abstract
The abnormal accumulation of amyloid-β (Aβ) in the central nervous system is a hallmark of Alzheimer’s disease (AD). The regulation of the processing of the single- transmembrane amyloid precursor protein (APP) plays an important role in the generation of Aβ in the brain. The phosphorylation of APP and key enzymes involved in the proteolytic processing of APP has been demonstrated to be critical for modulating the generation of Aβ by either altering the subcellular localization of APP or changing the enzymatic activities of the secretases responsible for APP processing. In addition, the phosphorylation may also have an impact on the physiological function of these proteins. In this review, we summarize the kinases and signaling pathways that may participate in regulating the phosphorylation of APP and secretases and how this further affects the function and processing of APP and Aβ pathology. We also discuss the potential of approaches that modulate these phosphorylation-signaling pathways or kinases as interventions for AD pathology.
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36
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Pelullo M, Nardozza F, Zema S, Quaranta R, Nicoletti C, Besharat ZM, Felli MP, Cerbelli B, d'Amati G, Palermo R, Capalbo C, Talora C, Di Marcotullio L, Giannini G, Checquolo S, Screpanti I, Bellavia D. Kras/ADAM17-Dependent Jag1-ICD Reverse Signaling Sustains Colorectal Cancer Progression and Chemoresistance. Cancer Res 2019; 79:5575-5586. [PMID: 31506332 DOI: 10.1158/0008-5472.can-19-0145] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 05/17/2019] [Accepted: 09/06/2019] [Indexed: 11/16/2022]
Abstract
Colorectal cancer is characterized by well-known genetic defects and approximately 50% of cases harbor oncogenic Ras mutations. Increased expression of Notch ligand Jagged1 occurs in several human malignancies, including colorectal cancer, and correlates with cancer progression, poor prognosis, and recurrence. Herein, we demonstrated that Jagged1 was constitutively processed in colorectal cancer tumors with mutant Kras, which ultimately triggered intrinsic reverse signaling via its nuclear-targeted intracellular domain Jag1-ICD. This process occurred when Kras/Erk/ADAM17 signaling was switched on, demonstrating that Jagged1 is a novel target of the Kras signaling pathway. Notably, Jag1-ICD promoted tumor growth and epithelial-mesenchymal transition, enhancing colorectal cancer progression and chemoresistance both in vitro and in vivo. These data highlight a novel role for Jagged1 in colorectal cancer tumor biology that may go beyond its effect on canonical Notch activation and suggest that Jag1-ICD may behave as an oncogenic driver that is able to sustain tumor pathogenesis and to confer chemoresistance through a noncanonical mechanism. SIGNIFICANCE: These findings present a novel role of the transcriptionally active Jag1-ICD fragment to confer and mediate some of the activity of oncogenic KRAS.
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Affiliation(s)
- Maria Pelullo
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy
| | | | - Sabrina Zema
- Department of Molecular Medicine, Sapienza University, Rome, Italy
| | - Roberta Quaranta
- Department of Molecular Medicine, Sapienza University, Rome, Italy
| | - Carmine Nicoletti
- Department of Anatomy, Histology, Forensic Medicine and Orthopedics, Unit of Histology and Medical Embryology, Sapienza University, Rome, Italy
| | | | - Maria Pia Felli
- Department of Experimental Medicine, Sapienza University, Rome, Italy
| | - Bruna Cerbelli
- Department of Radiological, Oncological and Pathological Sciences, Sapienza University, Rome, Italy
| | - Giulia d'Amati
- Department of Radiological, Oncological and Pathological Sciences, Sapienza University, Rome, Italy
| | - Rocco Palermo
- Department of Molecular Medicine, Sapienza University, Rome, Italy
| | - Carlo Capalbo
- Department of Molecular Medicine, Sapienza University, Rome, Italy
| | - Claudio Talora
- Department of Molecular Medicine, Sapienza University, Rome, Italy
| | - Lucia Di Marcotullio
- Department of Molecular Medicine, Sapienza University, Laboratory affiliated to Istituto Pasteur Italia, Italy
| | - Giuseppe Giannini
- Department of Molecular Medicine, Sapienza University, Laboratory affiliated to Istituto Pasteur Italia, Italy
| | - Saula Checquolo
- Department of Medico-Surgical Sciences and Biotechnology, Sapienza University, Latina, Italy.
| | | | - Diana Bellavia
- Department of Molecular Medicine, Sapienza University, Rome, Italy.
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37
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Saad MI, Rose-John S, Jenkins BJ. ADAM17: An Emerging Therapeutic Target for Lung Cancer. Cancers (Basel) 2019; 11:E1218. [PMID: 31438559 PMCID: PMC6769596 DOI: 10.3390/cancers11091218] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/07/2019] [Accepted: 08/17/2019] [Indexed: 12/23/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related mortality, which histologically is classified into small-cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC). NSCLC accounts for approximately 85% of all lung cancer diagnoses, with the majority of patients presenting with lung adenocarcinoma (LAC). KRAS mutations are a major driver of LAC, and are closely related to cigarette smoking, unlike mutations in the epidermal growth factor receptor (EGFR) which arise in never-smokers. Although the past two decades have seen fundamental progress in the treatment and diagnosis of NSCLC, NSCLC still is predominantly diagnosed at an advanced stage when therapeutic interventions are mostly palliative. A disintegrin and metalloproteinase 17 (ADAM17), also known as tumour necrosis factor-α (TNFα)-converting enzyme (TACE), is responsible for the protease-driven shedding of more than 70 membrane-tethered cytokines, growth factors and cell surface receptors. Among these, the soluble interleukin-6 receptor (sIL-6R), which drives pro-inflammatory and pro-tumourigenic IL-6 trans-signaling, along with several EGFR family ligands, are the best characterised. This large repertoire of substrates processed by ADAM17 places it as a pivotal orchestrator of a myriad of physiological and pathological processes associated with the initiation and/or progression of cancer, such as cell proliferation, survival, regeneration, differentiation and inflammation. In this review, we discuss recent research implicating ADAM17 as a key player in the development of LAC, and highlight the potential of ADAM17 inhibition as a promising therapeutic strategy to tackle this deadly malignancy.
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Affiliation(s)
- Mohamed I Saad
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria 3168, Australia
- Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria 3168, Australia
| | - Stefan Rose-John
- Institute of Biochemistry, Christian-Albrechts-University, D-24098 Kiel, Germany
| | - Brendan J Jenkins
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria 3168, Australia.
- Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria 3168, Australia.
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38
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Kopp R, Krautloher A, Ramírez-Fernández A, Nicke A. P2X7 Interactions and Signaling - Making Head or Tail of It. Front Mol Neurosci 2019; 12:183. [PMID: 31440138 PMCID: PMC6693442 DOI: 10.3389/fnmol.2019.00183] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 07/11/2019] [Indexed: 12/14/2022] Open
Abstract
Extracellular adenine nucleotides play important roles in cell-cell communication and tissue homeostasis. High concentrations of extracellular ATP released by dying cells are sensed as a danger signal by the P2X7 receptor, a non-specific cation channel. Studies in P2X7 knockout mice and numerous disease models have demonstrated an important role of this receptor in inflammatory processes. P2X7 activation has been shown to induce a variety of cellular responses that are not usually associated with ion channel function, for example changes in the plasma membrane composition and morphology, ectodomain shedding, activation of lipases, kinases, and transcription factors, as well as cytokine release and apoptosis. In contrast to all other P2X family members, the P2X7 receptor contains a long intracellular C-terminus that constitutes 40% of the whole protein and is considered essential for most of these effects. So far, over 50 different proteins have been identified to physically interact with the P2X7 receptor. However, few of these interactions have been confirmed in independent studies and for the majority of these proteins, the interaction domains and the physiological consequences of the interactions are only poorly described. Also, while the structure of the P2X7 extracellular domain has recently been resolved, information about the organization and structure of its C-terminal tail remains elusive. After shortly describing the structure and assembly of the P2X7 receptor, this review gives an update of the identified or proposed interaction domains within the P2X7 C-terminus, describes signaling pathways in which this receptor has been involved, and provides an overlook of the identified interaction partners.
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Affiliation(s)
- Robin Kopp
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Anna Krautloher
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Antonio Ramírez-Fernández
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Annette Nicke
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, LMU Munich, Munich, Germany
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39
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Palau V, Pascual J, Soler MJ, Riera M. Role of ADAM17 in kidney disease. Am J Physiol Renal Physiol 2019; 317:F333-F342. [DOI: 10.1152/ajprenal.00625.2018] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
It is known that the renin-angiotensin system plays a major role in the pathophysiology of cardiovascular disease and renal injury. Within the renin-angiotensin system, angiotensin-converting enzyme 2 (ACE2) cleaves ANG II to generate ANG(1–7) peptide, which counteracts the adverse effects of ANG II accumulation. ACE2 can undergo cleavage or shedding to release the catalytically active ectodomain into the circulation by a disintegrin and metalloprotease (ADAM)17, also known as TNF-α-converting enzyme. ADAM17 is involved in many pathological processes such as cancer, inflammatory diseases, neurological diseases, cardiovascular diseases, atherosclerosis, diabetes, and hypertension. Clinical and experimental studies have shown that ADAM17 is involved in chronic kidney disease (CKD) with a proinflammatory and profibrotic role, suggesting that it could be an important mediator of CKD progression. ADAM17 inhibition attenuates fibrosis and inflammation, suggesting that its inhibition may be a possible new valuable therapeutic tool in fibrotic kidney disease treatment. In addition, in renal disease, some experimental studies have demonstrated that ADAM17 is differently expressed in the kidney. Thus, ADAM17 is highly expressed in distal renal tubules and increased in the whole kidney in diabetic models. In this article, we will review the role of ADAM17 under physiological and pathological conditions. We will mainly focus on the importance of ADAM17 in the context of CKD.
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Affiliation(s)
- Vanesa Palau
- Department of Nephrology, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Julio Pascual
- Department of Nephrology, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Maria José Soler
- Department of Nephrology, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Marta Riera
- Department of Nephrology, Hospital del Mar Medical Research Institute, Barcelona, Spain
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40
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Status update on iRhom and ADAM17: It's still complicated. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:1567-1583. [PMID: 31330158 DOI: 10.1016/j.bbamcr.2019.06.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/26/2019] [Accepted: 06/28/2019] [Indexed: 02/06/2023]
Abstract
Several membrane-bound proteins with a single transmembrane domain are subjected to limited proteolysis at the cell surface. This cleavage leads to the release of their biologically active ectodomains, which can trigger different signalling pathways. In many cases, this ectodomain shedding is mediated by members of the family of a disintegrins and metalloproteinases (ADAMs). ADAM17 in particular is responsible for the cleavage of several proinflammatory mediators, growth factors, receptors and adhesion molecules. Due to its direct involvement in the release of these signalling molecules, ADAM17 can be positively and negatively involved in various physiological processes as well as in inflammatory, fibrotic and malignant pathologies. This central role of ADAM17 in a variety of processes requires strict multi-level regulation, including phosphorylation, various conformational changes and endogenous inhibitors. Recent research has shown that an early, crucial control mechanism is interaction with certain adapter proteins identified as iRhom1 and iRhom2, which are pseudoproteases of the rhomboid superfamily. Thus, iRhoms have also a decisive influence on physiological and pathophysiological signalling processes regulated by ADAM17. Their characteristic gene expression profiles, the specific consequences of gene knockouts and finally the occurrence of disease-associated mutations suggest that iRhom1 and iRhom2 undergo different gene regulation in order to fulfil their function in different cell types and are therefore only partially redundant. Therefore, there is not only interest in ADAM17, but also in iRhoms as therapeutic targets. However, to exploit the therapeutic potential, the regulation of ADAM17 activity and in particular its interaction with iRhoms must be well understood.
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41
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Yu Y, Cao Y, Bell B, Chen X, Weiss RM, Felder RB, Wei SG. Brain TACE (Tumor Necrosis Factor-α-Converting Enzyme) Contributes to Sympathetic Excitation in Heart Failure Rats. Hypertension 2019; 74:63-72. [PMID: 31154904 DOI: 10.1161/hypertensionaha.119.12651] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
TNF-α (tumor necrosis factor-α) is initially synthesized as a transmembrane protein that is cleaved by TACE (TNF-α-converting enzyme) to release soluble TNF-α. The elevated level of TNF-α in the brain and circulation in heart failure (HF) suggests an increase in the TACE-mediated ectodomain shedding process. The present study sought to determine whether TACE is upregulated in cardiovascular/autonomic brain regions like subfornical organ and hypothalamic paraventricular nucleus in rats with ischemia-induced HF and whether TACE plays a role in TNF-α-driven sympathetic excitation. We found that TACE was expressed throughout the subfornical organ and paraventricular nucleus, with significantly higher levels in HF than in sham-operated (Sham) rats. Intracerebroventricular injection of recombinant TACE induced a mild increase in blood pressure, heart rate, and renal sympathetic nerve activity that peaked at 15 to 20 minutes in both Sham and HF rats. HF rats had a secondary prolonged increase in these variables that was prevented by the TNF-α inhibitor SPD304. Intracerebroventricular administration of the TACE inhibitor TNF-alpha protease inhibitor 1 decreased blood pressure, heart rate, and renal sympathetic nerve activity in Sham and HF rats, with an exaggerated reduction in heart rate and renal sympathetic nerve activity in the HF rats. Direct microinjection of TACE or TNF-alpha protease inhibitor 1 into paraventricular nucleus or subfornical organ of Sham and HF rats elicited blood pressure, heart rate, and renal sympathetic nerve activity responses similar to intracerebroventricular TACE or TNF-alpha protease inhibitor 1. Intracerebroventricular infusion of Ang II (angiotensin II) and IL (interleukin)-1β increased TACE expression in subfornical organ and paraventricular nucleus of normal rats. These data suggest that a TACE-mediated increase in soluble TNF-α in the brain contributes to sympathetic excitation in HF.
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Affiliation(s)
- Yang Yu
- From the Department of Internal Medicine (Y.Y., Y.C., B.B., X.C., R.M.W., R.B.F., S.-G.W.), University of Iowa Carver College of Medicine
| | - Yiling Cao
- From the Department of Internal Medicine (Y.Y., Y.C., B.B., X.C., R.M.W., R.B.F., S.-G.W.), University of Iowa Carver College of Medicine
| | - Balyssa Bell
- From the Department of Internal Medicine (Y.Y., Y.C., B.B., X.C., R.M.W., R.B.F., S.-G.W.), University of Iowa Carver College of Medicine
| | - Xiaolei Chen
- From the Department of Internal Medicine (Y.Y., Y.C., B.B., X.C., R.M.W., R.B.F., S.-G.W.), University of Iowa Carver College of Medicine
| | - Robert M Weiss
- From the Department of Internal Medicine (Y.Y., Y.C., B.B., X.C., R.M.W., R.B.F., S.-G.W.), University of Iowa Carver College of Medicine
| | - Robert B Felder
- From the Department of Internal Medicine (Y.Y., Y.C., B.B., X.C., R.M.W., R.B.F., S.-G.W.), University of Iowa Carver College of Medicine.,Veterans Affairs Medical Center, Iowa City, IA (R.B.F.)
| | - Shun-Guang Wei
- From the Department of Internal Medicine (Y.Y., Y.C., B.B., X.C., R.M.W., R.B.F., S.-G.W.), University of Iowa Carver College of Medicine.,Neuroscience Graduate Program (S.-G.W.), University of Iowa Carver College of Medicine
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Pavlenko E, Cabron AS, Arnold P, Dobert JP, Rose-John S, Zunke F. Functional Characterization of Colon Cancer-Associated Mutations in ADAM17: Modifications in the Pro-Domain Interfere with Trafficking and Maturation. Int J Mol Sci 2019; 20:ijms20092198. [PMID: 31060243 PMCID: PMC6539446 DOI: 10.3390/ijms20092198] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 12/28/2022] Open
Abstract
Colorectal cancer is one of the most commonly diagnosed malignancies in the Western world and is associated with elevated expression and activity of epidermal growth factor receptors (EGF-R). The metalloproteinase ADAM17 is involved in EGF-R activation by processing EGF-R ligands from membrane-bound pro-ligands. Underlining the link between colon cancer and ADAM17, genetic intestinal cancer models in ADAM17-deficient mice show a reduced tumor burden. In this study, we characterize point mutations within the ADAM17 gene found in the tissue of colon cancer patients. In order to shed light on the role of ADAM17 in cancer development, as well as into the mechanisms that regulate maturation and cellular trafficking of ADAM17, we here perform overexpression studies of four ADAM17 variants located in the pro-, membrane-proximal- and cytoplasmic-domain of the ADAM17 protein in ADAM10/17-deficient HEK cells. Interestingly, we found a cancer-associated point mutation within the pro-domain of ADAM17 (R177C) to be most impaired in its proteolytic activity and trafficking to the cell membrane. By comparing this variant to an ADAM17 construct lacking the entire pro-domain, we discovered similar functional limitations and propose a crucial role of the pro-domain for ADAM17 maturation, cellular trafficking and thus proteolytic activity.
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Affiliation(s)
- Egor Pavlenko
- Institute of Biochemistry, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany.
| | - Anne-Sophie Cabron
- Institute of Biochemistry, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany.
| | - Philipp Arnold
- Institute of Anatomy, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany.
| | - Jan Philipp Dobert
- Institute of Biochemistry, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany.
| | - Stefan Rose-John
- Institute of Biochemistry, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany.
| | - Friederike Zunke
- Institute of Biochemistry, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany.
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Zhong S, Khalil RA. A Disintegrin and Metalloproteinase (ADAM) and ADAM with thrombospondin motifs (ADAMTS) family in vascular biology and disease. Biochem Pharmacol 2019; 164:188-204. [PMID: 30905657 DOI: 10.1016/j.bcp.2019.03.033] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/20/2019] [Indexed: 12/11/2022]
Abstract
A Disintegrin and Metalloproteinase (ADAM) is a family of proteolytic enzymes that possess sheddase function and regulate shedding of membrane-bound proteins, growth factors, cytokines, ligands and receptors. Typically, ADAMs have a pro-domain, and a metalloproteinase, disintegrin, cysteine-rich and a characteristic transmembrane domain. Most ADAMs are activated by proprotein convertases, but can also be regulated by G-protein coupled receptor agonists, Ca2+ ionophores and protein kinase C activators. A Disintegrin and Metalloproteinase with Thrombospondin Motifs (ADAMTS) is a family of secreted enzymes closely related to ADAMs. Like ADAMs, ADAMTS members have a pro-domain, and a metalloproteinase, disintegrin, and cysteine-rich domain, but they lack a transmembrane domain and instead have characteristic thrombospondin motifs. Activated ADAMs perform several functions and participate in multiple cardiovascular processes including vascular smooth muscle cell proliferation and migration, angiogenesis, vascular cell apoptosis, cell survival, tissue repair, and wound healing. ADAMs may also be involved in pathological conditions and cardiovascular diseases such as atherosclerosis, hypertension, aneurysm, coronary artery disease, myocardial infarction and heart failure. Like ADAMs, ADAMTS have a wide-spectrum role in vascular biology and cardiovascular pathophysiology. ADAMs and ADAMTS activity is naturally controlled by endogenous inhibitors such as tissue inhibitors of metalloproteinases (TIMPs), and their activity can also be suppressed by synthetic small molecule inhibitors. ADAMs and ADAMTS can serve as important diagnostic biomarkers and potential therapeutic targets for cardiovascular disorders. Natural and synthetic inhibitors of ADAMs and ADAMTS could be potential therapeutic tools for the management of cardiovascular diseases.
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Affiliation(s)
- Sheng Zhong
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Raouf A Khalil
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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Xing Z, Wei L, Jiang X, Conroy J, Glenn S, Bshara W, Yu T, Pao A, Tanaka S, Kawai A, Choi C, Wang J, Liu S, Morrison C, Yu YE. Analysis of mutations in primary and metastatic synovial sarcoma. Oncotarget 2018; 9:36878-36888. [PMID: 30627328 PMCID: PMC6305143 DOI: 10.18632/oncotarget.26416] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 11/16/2018] [Indexed: 02/06/2023] Open
Abstract
Synovial sarcoma is the most common pediatric non-rhabdomyosarcoma soft tissue sarcoma and accounts for about 8-10% of all soft tissue sarcoma in childhood and adolescence. The presence of a chromosomal translocation-associated SS18-SSX-fusion gene is causally linked to development of primary synovial sarcoma. Metastases occur in approximately 50-70% of synovial sarcoma cases with yet unknown mechanisms, which led to about 70-80% mortality rate in five years. To explore the possibilities to investigate metastatic mechanisms of synovial sarcoma, we carried out the first genome-wide search for potential genetic biomarkers and drivers associated with metastasis by comparative mutational profiling of 18 synovial sarcoma samples isolated from four patients carrying the primary tumors and another four patients carrying the metastatic tumors through whole exome sequencing. Selected from the candidates yielded from this effort, we examined the effect of the multiple missense mutations of ADAM17, which were identified solely in metastatic synovial sarcoma. The mutant alleles as well as the wild-type control were expressed in the mammalian cells harboring the SS18-SSX1 fusion gene. The ADAM17-P729H mutation was shown to enhance cell migration, a phenotype associated with metastasis. Therefore, like ADAM17-P729H, other mutations we identified solely in metastatic synovial sarcoma may also have the potential to serve as an entry point for unraveling the metastatic mechanisms of synovial sarcoma.
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Affiliation(s)
- Zhuo Xing
- The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program, Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Lei Wei
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Xiaoling Jiang
- The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program, Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Jeffrey Conroy
- Center for Personalized Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.,OmniSeq Inc., Buffalo, NY, USA
| | - Sean Glenn
- Center for Personalized Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.,OmniSeq Inc., Buffalo, NY, USA
| | - Wiam Bshara
- Department of Pathology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Tao Yu
- The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program, Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY, USA.,Department of Medical Genetics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Annie Pao
- The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program, Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Shinya Tanaka
- Department of Cancer Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Akira Kawai
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Christopher Choi
- Center for Immunotherapy, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Jianmin Wang
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Song Liu
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Carl Morrison
- Center for Personalized Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.,OmniSeq Inc., Buffalo, NY, USA.,Department of Pathology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Y Eugene Yu
- The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program, Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY, USA.,Genetics, Genomics and Bioinformatics Program, State University of New York at Buffalo, Buffalo, NY, USA
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Cabron AS, El Azzouzi K, Boss M, Arnold P, Schwarz J, Rosas M, Dobert JP, Pavlenko E, Schumacher N, Renné T, Taylor PR, Linder S, Rose-John S, Zunke F. Structural and Functional Analyses of the Shedding Protease ADAM17 in HoxB8-Immortalized Macrophages and Dendritic-like Cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2018; 201:3106-3118. [PMID: 30355783 PMCID: PMC6215251 DOI: 10.4049/jimmunol.1701556] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 09/16/2018] [Indexed: 01/19/2023]
Abstract
A disintegrin and metalloproteinase (ADAM) 17 has been implicated in many shedding processes. Major substrates of ADAM17 are TNF-α, IL-6R, and ligands of the epidermal growth factor receptor. The essential role of the protease is emphasized by the fact that ADAM17 deficiency is lethal in mice. To study ADAM17 function in vivo, we generated viable hypomorphic ADAM17 mice called ADAM17ex/ex mice. Recent studies indicated regulation of proteolytic ADAM17 activity by cellular processes such as cytoplasmic phosphorylation and removal of the prodomain by furin cleavage. Maturation and thus activation of ADAM17 is not fully understood. So far, studies of ADAM17 maturation have been mainly limited to mouse embryonic fibroblasts or transfected cell lines relying on nonphysiologic stimuli such as phorbol esters, thus making interpretation of the results difficult in a physiologic context. In this article, we present a robust cell system to study ADAM17 maturation and function in primary cells of the immune system. To this end, HoxB8 conditionally immortalized macrophage precursor cell lines were derived from bone marrow of wild-type and hypomorphic ADAM17ex/ex mice, which are devoid of measurable ADAM17 activity. ADAM17 mutants were stably expressed in macrophage precursor cells, differentiated to macrophages under different growth factor conditions (M-CSF versus GM-CSF), and analyzed for cellular localization, proteolytic activity, and podosome disassembly. Our study reveals maturation and activity of ADAM17 in a more physiological-immune cell system. We show that this cell system can be further exploited for genetic modifications of ADAM17 and for studying its function in immune cells.
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Affiliation(s)
- Anne-Sophie Cabron
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Karim El Azzouzi
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | - Melanie Boss
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Philipp Arnold
- Institute of Anatomy, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Jeanette Schwarz
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Marcela Rosas
- Division of Infection and Immunity, Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff CF10 3AT, United Kingdom
| | - Jan Philipp Dobert
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Egor Pavlenko
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Neele Schumacher
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Thomas Renné
- Department of Molecular Medicine and Surgery, Karolinska Institutet and University Hospital, Solna, SE-171 76 Stockholm, Sweden; and
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Philip R Taylor
- Division of Infection and Immunity, Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff CF10 3AT, United Kingdom
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
| | - Stefan Rose-John
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany;
| | - Friederike Zunke
- Institute of Biochemistry, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany;
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Phosphorylation of iRhom2 Controls Stimulated Proteolytic Shedding by the Metalloprotease ADAM17/TACE. Cell Rep 2018; 21:745-757. [PMID: 29045841 PMCID: PMC5656746 DOI: 10.1016/j.celrep.2017.09.074] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 07/12/2017] [Accepted: 09/22/2017] [Indexed: 12/02/2022] Open
Abstract
Cell surface metalloproteases coordinate signaling during development, tissue homeostasis, and disease. TACE (TNF-α-converting enzyme), is responsible for cleavage (“shedding”) of membrane-tethered signaling molecules, including the cytokine TNF, and activating ligands of the EGFR. The trafficking of TACE within the secretory pathway requires its binding to iRhom2, which mediates the exit of TACE from the endoplasmic reticulum. An important, but mechanistically unclear, feature of TACE biology is its ability to be stimulated rapidly on the cell surface by numerous inflammatory and growth-promoting agents. Here, we report a role for iRhom2 in TACE stimulation on the cell surface. TACE shedding stimuli trigger MAP kinase-dependent phosphorylation of iRhom2 N-terminal cytoplasmic tail. This recruits 14-3-3 proteins, enforcing the dissociation of TACE from complexes with iRhom2, promoting the cleavage of TACE substrates. Our data reveal that iRhom2 controls multiple aspects of TACE biology, including stimulated shedding on the cell surface. iRhom2 is phosphorylated in response to stimuli that activate the sheddase TACE Blocking iRhom phosphorylation represses TACE stimulated shedding Phosphorylated iRhom2 recruits 14-3-3 and dissociates from TACE, enabling shedding iRhom2 is thus a signal integrator and transducer of stimulated TACE shedding
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48
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Arkun Y, Yasemi M. Dynamics and control of the ERK signaling pathway: Sensitivity, bistability, and oscillations. PLoS One 2018; 13:e0195513. [PMID: 29630631 PMCID: PMC5891012 DOI: 10.1371/journal.pone.0195513] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 03/22/2018] [Indexed: 02/06/2023] Open
Abstract
Cell signaling is the process by which extracellular information is transmitted into the cell to perform useful biological functions. The ERK (extracellular-signal-regulated kinase) signaling controls several cellular processes such as cell growth, proliferation, differentiation and apoptosis. The ERK signaling pathway considered in this work starts with an extracellular stimulus and ends with activated (double phosphorylated) ERK which gets translocated into the nucleus. We model and analyze this complex pathway by decomposing it into three functional subsystems. The first subsystem spans the initial part of the pathway from the extracellular growth factor to the formation of the SOS complex, ShC-Grb2-SOS. The second subsystem includes the activation of Ras which is mediated by the SOS complex. This is followed by the MAPK subsystem (or the Raf-MEK-ERK pathway) which produces the double phosphorylated ERK upon being activated by Ras. Although separate models exist in the literature at the subsystems level, a comprehensive model for the complete system including the important regulatory feedback loops is missing. Our dynamic model combines the existing subsystem models and studies their steady-state and dynamic interactions under feedback. We establish conditions under which bistability and oscillations exist for this important pathway. In particular, we show how the negative and positive feedback loops affect the dynamic characteristics that determine the cellular outcome.
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Affiliation(s)
- Yaman Arkun
- Department of Chemical and Biological Engineering, Koc University, Rumeli Feneri Yolu, Sariyer, Istanbul, Turkey
- * E-mail:
| | - Mohammadreza Yasemi
- Department of Chemical and Biological Engineering, Koc University, Rumeli Feneri Yolu, Sariyer, Istanbul, Turkey
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49
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Motani K, Kosako H. Activation of stimulator of interferon genes (STING) induces ADAM17-mediated shedding of the immune semaphorin SEMA4D. J Biol Chem 2018; 293:7717-7726. [PMID: 29618514 DOI: 10.1074/jbc.ra118.002175] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/23/2018] [Indexed: 01/06/2023] Open
Abstract
Stimulator of interferon genes (STING) is an endoplasmic reticulum-resident membrane protein that mediates cytosolic pathogen DNA-induced innate immunity and inflammatory responses in host defenses. STING is activated by cyclic di-nucleotides and is then translocated to the Golgi apparatus, an event that triggers STING assembly with the downstream enzyme TANK-binding kinase 1 (TBK1). This assembly leads to the phosphorylation of the transcription factor interferon regulatory factor 3 (IRF3), which in turn induces expression of type-I interferon (IFN) and chemokine genes. STING also mediates inflammatory responses independently of IRF3, but these molecular pathways are largely unexplored. Here, we analyzed the RAW264.7 macrophage secretome to comprehensively identify proinflammatory factors released into the extracellular medium upon STING activation. In total, we identified 1299 proteins in macrophage culture supernatants, of which 23 were significantly increased after STING activation. These proteins included IRF3-dependent cytokines, as well as previously unknown targets of STING, such as the immune semaphorin SEMA4D/CD100, which possesses proinflammatory cytokine-like activities. Unlike for canonical cytokines, the expression of the SEMA4D gene was not up-regulated. Instead, upon STING activation, membrane-bound SEMA4D was cleaved into a soluble form, suggesting the presence of a post-translational shedding machinery. Importantly, the SEMA4D shedding was blocked by TMI-1, an inhibitor of the sheddase ADAM metallopeptidase domain 17 (ADAM17) but not by the TBK1 inhibitor BX795. These results suggest that STING activates ADAM17 and that this activation produces soluble proinflammatory SEMA4D independently of the TBK1/IRF3-mediated transcriptional pathway.
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Affiliation(s)
- Kou Motani
- From the Division of Cell Signaling, Fujii Memorial Institute of Medical Sciences, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hidetaka Kosako
- From the Division of Cell Signaling, Fujii Memorial Institute of Medical Sciences, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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50
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The EGFR-ADAM17 Axis in Chronic Obstructive Pulmonary Disease and Cystic Fibrosis Lung Pathology. Mediators Inflamm 2018. [PMID: 29540993 PMCID: PMC5818912 DOI: 10.1155/2018/1067134] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) and cystic fibrosis (CF) share molecular mechanisms that cause the pathological symptoms they have in common. Here, we review evidence suggesting that hyperactivity of the EGFR/ADAM17 axis plays a role in the development of chronic lung disease in both CF and COPD. The ubiquitous transmembrane protease A disintegrin and metalloprotease 17 (ADAM17) forms a functional unit with the EGF receptor (EGFR), in a feedback loop interaction labeled the ADAM17/EGFR axis. In airway epithelial cells, ADAM17 sheds multiple soluble signaling proteins by proteolysis, including EGFR ligands such as amphiregulin (AREG), and proinflammatory mediators such as the interleukin 6 coreceptor (IL-6R). This activity can be enhanced by injury, toxins, and receptor-mediated external triggers. In addition to intracellular kinases, the extracellular glutathione-dependent redox potential controls ADAM17 shedding. Thus, the epithelial ADAM17/EGFR axis serves as a receptor of incoming luminal stress signals, relaying these to neighboring and underlying cells, which plays an important role in the resolution of lung injury and inflammation. We review evidence that congenital CFTR deficiency in CF and reduced CFTR activity in chronic COPD may cause enhanced ADAM17/EGFR signaling through a defect in glutathione secretion. In future studies, these complex interactions and the options for pharmaceutical interventions will be further investigated.
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