1
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Sabeh F, Li XY, Olson AW, Botvinick E, Kurup A, Gimenez LE, Cho JS, Weiss SJ. Mmp14-dependent remodeling of the pericellular-dermal collagen interface governs fibroblast survival. J Cell Biol 2024; 223:e202312091. [PMID: 38990714 PMCID: PMC11244150 DOI: 10.1083/jcb.202312091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 05/10/2024] [Accepted: 05/30/2024] [Indexed: 07/13/2024] Open
Abstract
Dermal fibroblasts deposit type I collagen, the dominant extracellular matrix molecule found in skin, during early postnatal development. Coincident with this biosynthetic program, fibroblasts proteolytically remodel pericellular collagen fibrils by mobilizing the membrane-anchored matrix metalloproteinase, Mmp14. Unexpectedly, dermal fibroblasts in Mmp14-/- mice commit to a large-scale apoptotic program that leaves skin tissues replete with dying cells. A requirement for Mmp14 in dermal fibroblast survival is recapitulated in vitro when cells are embedded within, but not cultured atop, three-dimensional hydrogels of crosslinked type I collagen. In the absence of Mmp14-dependent pericellular proteolysis, dermal fibroblasts fail to trigger β1 integrin activation and instead actuate a TGF-β1/phospho-JNK stress response that leads to apoptotic cell death in vitro as well as in vivo. Taken together, these studies identify Mmp14 as a requisite cell survival factor that maintains dermal fibroblast viability in postnatal dermal tissues.
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Affiliation(s)
- Farideh Sabeh
- Division of Genetic Medicine, Department of Internal Medicine, Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Xiao-Yan Li
- Division of Genetic Medicine, Department of Internal Medicine, Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Adam W. Olson
- Division of Genetic Medicine, Department of Internal Medicine, Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Elliot Botvinick
- The Henry Samueli School of Engineering, University of California, Irvine, CA, USA
| | - Abhishek Kurup
- The Henry Samueli School of Engineering, University of California, Irvine, CA, USA
| | - Luis E. Gimenez
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Jung-Sun Cho
- Division of Genetic Medicine, Department of Internal Medicine, Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Stephen J. Weiss
- Division of Genetic Medicine, Department of Internal Medicine, Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
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2
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Weiß MS, Trapani G, Long H, Trappmann B. Matrix Resistance Toward Proteolytic Cleavage Controls Contractility-Dependent Migration Modes During Angiogenic Sprouting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305947. [PMID: 38477409 PMCID: PMC11109655 DOI: 10.1002/advs.202305947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 02/16/2024] [Indexed: 03/14/2024]
Abstract
Tissue homeostasis and disease states rely on the formation of new blood vessels through angiogenic sprouting, which is tightly regulated by the properties of the surrounding extracellular matrix. While physical cues, such as matrix stiffness or degradability, have evolved as major regulators of cell function in tissue microenvironments, it remains unknown whether and how physical cues regulate endothelial cell migration during angiogenesis. To investigate this, a biomimetic model of angiogenic sprouting inside a tunable synthetic hydrogel is created. It is shown that endothelial cells sense the resistance of the surrounding matrix toward proteolytic cleavage and respond by adjusting their migration phenotype. The resistance cells encounter is impacted by the number of covalent matrix crosslinks, crosslink degradability, and the proteolytic activity of cells. When matrix resistance is high, cells switch from a collective to an actomyosin contractility-dependent single cellular migration mode. This switch in collectivity is accompanied by a major reorganization of the actin cytoskeleton, where stress fibers are no longer visible, and F-actin aggregates in large punctate clusters. Matrix resistance is identified as a previously unknown regulator of angiogenic sprouting and, thus, provides a mechanism by which the physical properties of the matrix impact cell migration modes through cytoskeletal remodeling.
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Affiliation(s)
- Martin S. Weiß
- Bioactive Materials LaboratoryMax Planck Institute for Molecular BiomedicineRöntgenstraße 2048149MünsterGermany
| | - Giuseppe Trapani
- Bioactive Materials LaboratoryMax Planck Institute for Molecular BiomedicineRöntgenstraße 2048149MünsterGermany
| | - Hongyan Long
- Bioactive Materials LaboratoryMax Planck Institute for Molecular BiomedicineRöntgenstraße 2048149MünsterGermany
| | - Britta Trappmann
- Bioactive Materials LaboratoryMax Planck Institute for Molecular BiomedicineRöntgenstraße 2048149MünsterGermany
- Department of Chemistry and Chemical BiologyTU Dortmund UniversityOtto‐Hahn‐Straße 644227DortmundGermany
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3
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Bui TM, Yalom LK, Ning E, Urbanczyk JM, Ren X, Herrnreiter CJ, Disario JA, Wray B, Schipma MJ, Velichko YS, Sullivan DP, Abe K, Lauberth SM, Yang GY, Dulai PS, Hanauer SB, Sumagin R. Tissue-specific reprogramming leads to angiogenic neutrophil specialization and tumor vascularization in colorectal cancer. J Clin Invest 2024; 134:e174545. [PMID: 38329810 PMCID: PMC10977994 DOI: 10.1172/jci174545] [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: 08/04/2023] [Accepted: 02/06/2024] [Indexed: 02/10/2024] Open
Abstract
Neutrophil (PMN) tissue accumulation is an established feature of ulcerative colitis (UC) lesions and colorectal cancer (CRC). To assess the PMN phenotypic and functional diversification during the transition from inflammatory ulceration to CRC we analyzed the transcriptomic landscape of blood and tissue PMNs. Transcriptional programs effectively separated PMNs based on their proximity to peripheral blood, inflamed colon, and tumors. In silico pathway overrepresentation analysis, protein-network mapping, gene signature identification, and gene-ontology scoring revealed unique enrichment of angiogenic and vasculature development pathways in tumor-associated neutrophils (TANs). Functional studies utilizing ex vivo cultures, colitis-induced murine CRC, and patient-derived xenograft models demonstrated a critical role for TANs in promoting tumor vascularization. Spp1 (OPN) and Mmp14 (MT1-MMP) were identified by unbiased -omics and mechanistic studies to be highly induced in TANs, acting to critically regulate endothelial cell chemotaxis and branching. TCGA data set and clinical specimens confirmed enrichment of SPP1 and MMP14 in high-grade CRC but not in patients with UC. Pharmacological inhibition of TAN trafficking or MMP14 activity effectively reduced tumor vascular density, leading to CRC regression. Our findings demonstrate a niche-directed PMN functional specialization and identify TAN contributions to tumor vascularization, delineating what we believe to be a new therapeutic framework for CRC treatment focused on TAN angiogenic properties.
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Affiliation(s)
- Triet M. Bui
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Lenore K. Yalom
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Edward Ning
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jessica M. Urbanczyk
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Xingsheng Ren
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Caroline J. Herrnreiter
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jackson A. Disario
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Brian Wray
- Quantitative Data Science Core, Lurie Cancer Center, Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA
| | - Matthew J. Schipma
- Quantitative Data Science Core, Lurie Cancer Center, Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA
| | - Yuri S. Velichko
- Department of Radiology, Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA
| | - David P. Sullivan
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Kouki Abe
- Simpson Querrey Institute for Epigenetics and Department of Biochemistry and Molecular Genetics, Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA
| | - Shannon M. Lauberth
- Simpson Querrey Institute for Epigenetics and Department of Biochemistry and Molecular Genetics, Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA
| | - Guang-Yu Yang
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Parambir S. Dulai
- Department of Medicine, Gastroenterology and Hepatology, Northwestern Memorial Hospital, Chicago, Illinois, USA
| | - Stephen B. Hanauer
- Department of Medicine, Gastroenterology and Hepatology, Northwestern Memorial Hospital, Chicago, Illinois, USA
| | - Ronen Sumagin
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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4
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Schevenels G, Cabochette P, America M, Vandenborne A, De Grande L, Guenther S, He L, Dieu M, Christou B, Vermeersch M, Germano RFV, Perez-Morga D, Renard P, Martin M, Vanlandewijck M, Betsholtz C, Vanhollebeke B. A brain-specific angiogenic mechanism enabled by tip cell specialization. Nature 2024; 628:863-871. [PMID: 38570687 PMCID: PMC11041701 DOI: 10.1038/s41586-024-07283-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 03/07/2024] [Indexed: 04/05/2024]
Abstract
Vertebrate organs require locally adapted blood vessels1,2. The gain of such organotypic vessel specializations is often deemed to be molecularly unrelated to the process of organ vascularization. Here, opposing this model, we reveal a molecular mechanism for brain-specific angiogenesis that operates under the control of Wnt7a/b ligands-well-known blood-brain barrier maturation signals3-5. The control mechanism relies on Wnt7a/b-dependent expression of Mmp25, which we find is enriched in brain endothelial cells. CRISPR-Cas9 mutagenesis in zebrafish reveals that this poorly characterized glycosylphosphatidylinositol-anchored matrix metalloproteinase is selectively required in endothelial tip cells to enable their initial migration across the pial basement membrane lining the brain surface. Mechanistically, Mmp25 confers brain invasive competence by cleaving meningeal fibroblast-derived collagen IV α5/6 chains within a short non-collagenous region of the central helical part of the heterotrimer. After genetic interference with the pial basement membrane composition, the Wnt-β-catenin-dependent organotypic control of brain angiogenesis is lost, resulting in properly patterned, yet blood-brain-barrier-defective cerebrovasculatures. We reveal an organ-specific angiogenesis mechanism, shed light on tip cell mechanistic angiodiversity and thereby illustrate how organs, by imposing local constraints on angiogenic tip cells, can select vessels matching their distinctive physiological requirements.
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Affiliation(s)
- Giel Schevenels
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Pauline Cabochette
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Michelle America
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Arnaud Vandenborne
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Line De Grande
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Stefan Guenther
- Max Planck Institute for Heart and Lung Research, ECCPS Bioinformatics and Deep Sequencing Platform, Bad Nauheim, Germany
| | - Liqun He
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Marc Dieu
- Mass Spectrometry Facility (MaSUN), University of Namur, Namur, Belgium
| | - Basile Christou
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Marjorie Vermeersch
- Center for Microscopy and Molecular Imaging (CMMI), Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Raoul F V Germano
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - David Perez-Morga
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
- Center for Microscopy and Molecular Imaging (CMMI), Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Patricia Renard
- Mass Spectrometry Facility (MaSUN), University of Namur, Namur, Belgium
| | - Maud Martin
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium
| | - Michael Vanlandewijck
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
- Department of Medicine (Huddinge), Karolinska Institutet, Huddinge, Sweden
| | - Christer Betsholtz
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
- Department of Medicine (Huddinge), Karolinska Institutet, Huddinge, Sweden
| | - Benoit Vanhollebeke
- Laboratory of Neurovascular Signaling, Department of Molecular Biology, ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Gosselies, Belgium.
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5
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Hu Z, Xu W, Yang X, Li Y, Ma R, Hei Y, Hu J, Zhang Z, Wang L, Wang Y. SIRT2 inhibition attenuates the vasculopathy and vision impairment via Akt signaling in retinopathy of prematurity. Exp Eye Res 2023:109547. [PMID: 37348672 DOI: 10.1016/j.exer.2023.109547] [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: 02/15/2023] [Revised: 06/01/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023]
Abstract
Despite decades of research, the underlying mechanism of retinopathy of prematurity (ROP) remains unclear. The role of Sirt2, which is involved in both angiogenesis and inflammation, both pivotal in ROP, was investigated in an animal model of ROP known as oxygen-induced retinopathy (OIR). Our study found that Sirt2 was overexpressed and colocalized with microglia in OIR. Furthermore, it demonstrated that the level of Sirt2 was upregulated in hypoxia microglia BV-2 in vitro. Subsequently, our results elucidated that administration of the Sirt2 antagonist AGK2 attenuated the avascular and neovascular area and downregulated the expression of IGF-1. The phosphorylation of Akt and the expression of IGF-1 were upregulated in hypoxia BV-2 and conditional media collected from BV-2 under hypoxia promoted the migration and tube formation of retinal capillary endothelial cells, which were suppressed with AGK2. Notably, our findings are the first to demonstrate the deleterious role of Sirt2 in ROP, as Sirt2 inhibition led to the downregulation of Akt/IGF-1 and ameliorated vasculopathy, ultimately improving visual function. These results suggest that Sirt2 may be a promising therapeutic target for ROP.
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Affiliation(s)
- Zhicha Hu
- Department of Ophthalmology of the Third Medical Center of PLA General Hospital, PR China
| | - Wenqi Xu
- Department of Ophthalmology of the Third Medical Center of PLA General Hospital, PR China
| | - Xinji Yang
- Department of Ophthalmology of the Third Medical Center of PLA General Hospital, PR China
| | - Yueyue Li
- Department of Ophthalmology of the Third Medical Center of PLA General Hospital, PR China
| | - Rui Ma
- Department of Ophthalmology of the Third Medical Center of PLA General Hospital, PR China
| | - Yan Hei
- Department of Ophthalmology of the Third Medical Center of PLA General Hospital, PR China
| | - Jian Hu
- Department of Ophthalmology of the Third Medical Center of PLA General Hospital, PR China
| | - Zifeng Zhang
- Department of Ophthalmology, Eye Institute of China PLA, Xijing Hospital, the Fourth Military Medical University, PR China.
| | - Liqiang Wang
- Department of Ophthalmology of the Third Medical Center of PLA General Hospital, PR China.
| | - Yusheng Wang
- Department of Ophthalmology, Eye Institute of China PLA, Xijing Hospital, the Fourth Military Medical University, PR China.
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6
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Ferre-Torres J, Noguera-Monteagudo A, Lopez-Canosa A, Romero-Arias JR, Barrio R, Castaño O, Hernandez-Machado A. Modelling of chemotactic sprouting endothelial cells through an extracellular matrix. Front Bioeng Biotechnol 2023; 11:1145550. [PMID: 37362221 PMCID: PMC10285466 DOI: 10.3389/fbioe.2023.1145550] [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: 01/17/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023] Open
Abstract
Sprouting angiogenesis is a core biological process critical to vascular development. Its accurate simulation, relevant to multiple facets of human health, is of broad, interdisciplinary appeal. This study presents an in-silico model replicating a microfluidic assay where endothelial cells sprout into a biomimetic extracellular matrix, specifically, a large-pore, low-concentration fibrin-based porous hydrogel, influenced by chemotactic factors. We introduce a novel approach by incorporating the extracellular matrix and chemotactic factor effects into a unified term using a single parameter, primarily focusing on modelling sprouting dynamics and morphology. This continuous model naturally describes chemotactic-induced sprouting with no need for additional rules. In addition, we extended our base model to account for matrix sensing and degradation, crucial aspects of angiogenesis. We validate our model via a hybrid in-silico experimental method, comparing the model predictions with experimental results derived from the microfluidic setup. Our results underscore the intricate relationship between the extracellular matrix structure and angiogenic sprouting, proposing a promising method for predicting the influence of the extracellular matrix on angiogenesis.
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Affiliation(s)
- Josep Ferre-Torres
- Department of Condensed Matter Physics, University of Barcelona (UB), Barcelona, Spain
| | | | - Adrian Lopez-Canosa
- Electronics and Biomedical Engineering, University of Barcelona (UB), Barcelona, Spain
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Spain
| | - J Roberto Romero-Arias
- Institute for Research in Applied Mathematics and Systems, National Autonomous University of Mexico , Mexico City, Mexico
| | - Rafael Barrio
- Institute of Physics, National Autonomous University of Mexico, Mexico City, Mexico
| | - Oscar Castaño
- Electronics and Biomedical Engineering, University of Barcelona (UB), Barcelona, Spain
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona (UB), Barcelona, Spain
| | - Aurora Hernandez-Machado
- Department of Condensed Matter Physics, University of Barcelona (UB), Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona (UB), Barcelona, Spain
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7
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Barrasa-Ramos S, Dessalles CA, Hautefeuille M, Barakat AI. Mechanical regulation of the early stages of angiogenesis. J R Soc Interface 2022; 19:20220360. [PMID: 36475392 PMCID: PMC9727679 DOI: 10.1098/rsif.2022.0360] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Favouring or thwarting the development of a vascular network is essential in fields as diverse as oncology, cardiovascular disease or tissue engineering. As a result, understanding and controlling angiogenesis has become a major scientific challenge. Mechanical factors play a fundamental role in angiogenesis and can potentially be exploited for optimizing the architecture of the resulting vascular network. Largely focusing on in vitro systems but also supported by some in vivo evidence, the aim of this Highlight Review is dual. First, we describe the current knowledge with particular focus on the effects of fluid and solid mechanical stimuli on the early stages of the angiogenic process, most notably the destabilization of existing vessels and the initiation and elongation of new vessels. Second, we explore inherent difficulties in the field and propose future perspectives on the use of in vitro and physics-based modelling to overcome these difficulties.
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Affiliation(s)
- Sara Barrasa-Ramos
- LadHyX, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - Claire A. Dessalles
- LadHyX, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - Mathieu Hautefeuille
- Laboratoire de Biologie du Développement (UMR7622), Institut de Biologie Paris Seine, Sorbonne Université, Paris, France,Facultad de Ciencias, Universidad Nacional Autónoma de México, CDMX, Mexico
| | - Abdul I. Barakat
- LadHyX, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
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8
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Díaz-Flores L, Gutiérrez R, García MP, González-Gómez M, Díaz-Flores L, Carrasco JL, Madrid JF, Rodríguez Bello A. Comparison of the Behavior of Perivascular Cells (Pericytes and CD34+ Stromal Cell/Telocytes) in Sprouting and Intussusceptive Angiogenesis. Int J Mol Sci 2022; 23:ijms23169010. [PMID: 36012273 PMCID: PMC9409369 DOI: 10.3390/ijms23169010] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Perivascular cells in the pericytic microvasculature, pericytes and CD34+ stromal cells/telocytes (CD34+SCs/TCs), have an important role in angiogenesis. We compare the behavior of these cells depending on whether the growth of endothelial cells (ECs) from the pre-existing microvasculature is toward the interstitium with vascular bud and neovessel formation (sprouting angiogenesis) or toward the vascular lumen with intravascular pillar development and vessel division (intussusceptive angiogenesis). Detachment from the vascular wall, mobilization, proliferation, recruitment, and differentiation of pericytes and CD34+SCs/TCs, as well as associated changes in vessel permeability and functionality, and modifications of the extracellular matrix are more intense, longer lasting over time, and with a greater energy cost in sprouting angiogenesis than in intussusceptive angiogenesis, in which some of the aforementioned events do not occur or are compensated for by others (e.g., sparse EC and pericyte proliferation by cell elongation and thinning). The governing mechanisms involve cell-cell contacts (e.g., peg-and-socket junctions between pericytes and ECs), multiple autocrine and paracrine signaling molecules and pathways (e.g., vascular endothelial growth factor, platelet-derived growth factor, angiopoietins, transforming growth factor B, ephrins, semaphorins, and metalloproteinases), and other factors (e.g., hypoxia, vascular patency, and blood flow). Pericytes participate in vessel development, stabilization, maturation and regression in sprouting angiogenesis, and in interstitial tissue structure formation of the pillar core in intussusceptive angiogenesis. In sprouting angiogenesis, proliferating perivascular CD34+SCs/TCs are an important source of stromal cells during repair through granulation tissue formation and of cancer-associated fibroblasts (CAFs) in tumors. Conversely, CD34+SCs/TCs have less participation as precursor cells in intussusceptive angiogenesis. The dysfunction of these mechanisms is involved in several diseases, including neoplasms, with therapeutic implications.
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Affiliation(s)
- Lucio Díaz-Flores
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain
- Correspondence: ; Tel.: +34-922-319317; Fax: +34-922-319279
| | - Ricardo Gutiérrez
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain
| | - Maria Pino García
- Department of Pathology, Eurofins Megalab–Hospiten Hospitals, 38100 Tenerife, Spain
| | - Miriam González-Gómez
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain
- Instituto de Tecnologías Biomédicas de Canarias, University of La Laguna, 38071 Tenerife, Spain
| | - Lucio Díaz-Flores
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain
| | - Jose Luis Carrasco
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain
| | - Juan Francisco Madrid
- Department of Cell Biology and Histology, School of Medicine, Campus of International Excellence “Campus Mare Nostrum”, IMIB-Arrixaca, University of Murcia, 30120 Murcia, Spain
| | - Aixa Rodríguez Bello
- Department of Bioquímica, Microbiología, Biología Celular y Genética, University of La Laguna, 38071 Tenerife, Spain
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9
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Kolbinger A, Kestner RI, Jencio L, Schäufele TJ, Vutukuri R, Pfeilschifter W, Scholich K. Behind the Wall-Compartment-Specific Neovascularisation during Post-Stroke Recovery in Mice. Cells 2022; 11:1659. [PMID: 35626695 PMCID: PMC9139871 DOI: 10.3390/cells11101659] [Citation(s) in RCA: 4] [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: 04/05/2022] [Revised: 05/09/2022] [Accepted: 05/13/2022] [Indexed: 02/06/2023] Open
Abstract
Ischemic stroke is a highly prevalent vascular disease leading to oxygen- and glucose deprivation in the brain. In response, ischemia-induced neovascularization occurs, which is supported by circulating CD34+ endothelial progenitor cells. Here, we used the transient middle cerebral artery occlusion (tMCAO) mouse model to characterize the spatio-temporal alterations within the ischemic core from the acute to the chronic phase using multiple-epitope-ligand cartography (MELC) for sequential immunohistochemistry. We found that around 14 days post-stroke, significant angiogenesis occurs in the ischemic core, as determined by the presence of CD31+/CD34+ double-positive endothelial cells. This neovascularization was accompanied by the recruitment of CD4+ T-cells and dendritic cells as well as IBA1+ and IBA1- microglia. Neighborhood analysis identified, besides pericytes only for T-cells and dendritic cells, a statistically significant distribution as direct neighbors of CD31+/CD34+ endothelial cells, suggesting a role for these cells in aiding angiogenesis. This process was distinct from neovascularization of the peri-infarct area as it was separated by a broad astroglial scar. At day 28 post-stroke, the scar had emerged towards the cortical periphery, which seems to give rise to a neuronal regeneration within the peri-infarct area. Meanwhile, the ischemic core has condensed to a highly vascularized subpial region adjacent to the leptomeningeal compartment. In conclusion, in the course of chronic post-stroke regeneration, the astroglial scar serves as a seal between two immunologically active compartments-the peri-infarct area and the ischemic core-which exhibit distinct processes of neovascularization as a central feature of post-stroke tissue remodeling. Based on our findings, we propose that neovascularization of the ischemic core comprises arteriogenesis as well as angiogenesis originating from the leptomenigeal vasculature.
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Affiliation(s)
- Anja Kolbinger
- Institute of Clinical Pharmacology, pharmazentrum frankfurt Goethe-University, D-60590 Frankfurt am Main, Germany; (A.K.); (T.J.S.)
| | - Roxane Isabelle Kestner
- Department of Neurology, Hospital of the Goethe University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany; (R.I.K.); (L.J.)
- Institute of Pharmacology and Toxicology, pharmazentrum frankfurt Goethe-University, D-60590 Frankfurt am Main, Germany; (R.V.); (W.P.)
| | - Lara Jencio
- Department of Neurology, Hospital of the Goethe University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany; (R.I.K.); (L.J.)
| | - Tim J. Schäufele
- Institute of Clinical Pharmacology, pharmazentrum frankfurt Goethe-University, D-60590 Frankfurt am Main, Germany; (A.K.); (T.J.S.)
| | - Rajkumar Vutukuri
- Institute of Pharmacology and Toxicology, pharmazentrum frankfurt Goethe-University, D-60590 Frankfurt am Main, Germany; (R.V.); (W.P.)
| | - Waltraud Pfeilschifter
- Institute of Pharmacology and Toxicology, pharmazentrum frankfurt Goethe-University, D-60590 Frankfurt am Main, Germany; (R.V.); (W.P.)
- Department of Neurology and Clinical Neurophysiology, Municipal Hospital Lüneburg, D-21339 Lüneburg, Germany
| | - Klaus Scholich
- Institute of Clinical Pharmacology, pharmazentrum frankfurt Goethe-University, D-60590 Frankfurt am Main, Germany; (A.K.); (T.J.S.)
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, D-60596 Frankfurt am Main, Germany
- Fraunhofer Cluster of Excellence for Immune-Mediated Diseases CIMD, Theodor-Stern-Kai 7, D-60596 Frankfurt am Main, Germany
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10
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Kanazawa Y, Nagano M, Koinuma S, Sugiyo S, Shigeyoshi Y. Effects of Aging on Basement Membrane of Tibialis Anterior Muscle During Recovery Following Muscle Injury in Rats. Microscopy (Oxf) 2022; 71:245-248. [PMID: 35349694 PMCID: PMC9340794 DOI: 10.1093/jmicro/dfac016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/10/2022] [Accepted: 03/26/2022] [Indexed: 12/03/2022] Open
Abstract
We investigated the effect of aging on the basement membrane (BM) during postinjury muscle recovery. Using a rat model, we found that aging delayed muscle fiber and BM recovery. In addition, expression of BM-related factors peaked 7 days after muscle injury among both young and older rats. Peak expression of collagen IV synthetic factors decreased with age, whereas expression of the degradative factor was unaffected by age. These results suggest that age-related delays in postinjury muscle fiber and BM recovery may be related to the suppression of collagen IV synthetic factors.
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Affiliation(s)
- Yuji Kanazawa
- Department of Medical Technology and Clinical Engineering, Hokuriku University, Kanazawa 920-1180, Japan.,Department of Anatomy and Neurobiology, Graduate school of Medical Sciences, Kindai University, Ohnohigashi, Osakasayama 589-8511, Japan
| | - Mamoru Nagano
- Department of Anatomy and Neurobiology, Graduate school of Medical Sciences, Kindai University, Ohnohigashi, Osakasayama 589-8511, Japan
| | - Satoshi Koinuma
- Department of Anatomy and Neurobiology, Graduate school of Medical Sciences, Kindai University, Ohnohigashi, Osakasayama 589-8511, Japan
| | - Shinichi Sugiyo
- Department of Physical Therapy, Osaka University of Human Sciences, Shojyaku, Settsu 566-8501, Japan
| | - Yasufumi Shigeyoshi
- Department of Anatomy and Neurobiology, Graduate school of Medical Sciences, Kindai University, Ohnohigashi, Osakasayama 589-8511, Japan
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11
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Wang A, Madden LA, Paunov VN. Fabrication of Angiogenic Sprouting Coculture of Cell Clusteroids Using an Aqueous Two-Phase Pickering Emulsion System. ACS APPLIED BIO MATERIALS 2022; 5:1804-1816. [PMID: 35315278 DOI: 10.1021/acsabm.2c00168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tumor cell spheroids and 3D cell culture have generated a lot of interest in the past decade due to their relative ease of production and biomedical research applications. To date, the frontier in tumor 3D models has been pushed to the level of personalized cancer treatment and customized tissue engineering applications. However, without vascularization, the central parts of these artificial constructs cannot survive without an adequate oxygen and nutrient supply. The formation of a necrotic core into in vitro 3D cell models still serves as the major obstacle in their wider practical application. Here, we propose a rapid formation protocol based on using a water-in-water (w/w) Pickering emulsion template to generate phenotypically endothelial/hepatic (ECV304/Hep-G2) coculture cell clusteroids with angiogenic capability. The w/w Pickering emulsion template was based on a dextran/poly(ethylene oxide) aqueous two-phase system stabilized by whey protein particles. The initial cell proportion in the coculture clusteroids can easily be manipulated for optimal performance. The cocultured pattern of the endothelial/hepatic cells could significantly promote the production of angiogenesis-related proteins. Our study confirmed that cocultured clusteroids can stimulate cell sprouting without the addition of vascular endothelial growth factor (VEGF) or other angiogenesis inducers at a 1:2 ratio of Hep-G2/ECV304. Angiogenesis gene production in the coculture clusteroids was enhanced with VEGF, urea, and insulin-like growth factor-binding protein along with angiogenesis-related marker CD34 levels, also indicating angiogenesis progress. Our aqueous two-phase Pickering emulsion templates provided a convenient approach to vascularize a target cell type in 3D cell coculture without additional stimulating factors, which could potentially apply to either cell lines or biopsy tissues, expanding the clusteroids downstream applications.
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Affiliation(s)
- Anheng Wang
- Department of Chemistry and Biochemistry, University of Hull, Hull HU67RX, United Kingdom
| | - Leigh A Madden
- Department of Biomedical Sciences, University of Hull, Hull HU67RX, United Kingdom
| | - Vesselin N Paunov
- Department of Chemistry, Nazarbayev University, 53 Kabanbay Batyr Avenue, Nursultan 010000, Kazakhstan
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12
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Park H, Nam KS, Lee HJ, Kim KS. Ionizing Radiation-Induced GDF15 Promotes Angiogenesis in Human Glioblastoma Models by Promoting VEGFA Expression Through p-MAPK1/SP1 Signaling. Front Oncol 2022; 12:801230. [PMID: 35280749 PMCID: PMC8913883 DOI: 10.3389/fonc.2022.801230] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 02/02/2022] [Indexed: 11/13/2022] Open
Abstract
Glioblastoma multiforme (GBM), the most aggressive cancer type that has a poor prognosis, is characterized by enhanced and aberrant angiogenesis. In addition to surgical resection and chemotherapy, radiotherapy is commonly used to treat GBM. However, radiation-induced angiogenesis in GBM remains unexplored. This study examined the role of radiation-induced growth/differentiation factor-15 (GDF15) in regulating tumor angiogenesis by promoting intercellular cross-talk between brain endothelial cells (ECs) and glioblastoma cells. Radiation promoted GDF15 secretion from human brain microvascular endothelial cells (HBMVECs). Subsequently, GDF15 activated the transcriptional promoter VEGFA in the human glioblastoma cell line U373 through p-MAPK1/SP1 signaling. Upregulation of vascular endothelial growth factor (VEGF) expression in U373 cells resulted in the activation of angiogenic activity in HBMVECs via KDR phosphorylation. Wound healing, tube formation, and invasion assay results revealed that the conditioned medium of recombinant human GDF15 (rhGDF15)-stimulated U373 cell cultures promoted the angiogenic activity of HBMVECs. In the HBMVEC-U373 cell co-culture, GDF15 knockdown mitigated radiation-induced VEGFA upregulation in U373 cells and enhanced angiogenic activity of HBMVECs. Moreover, injecting rhGDF15-stimulated U373 cells into orthotopic brain tumors in mice promoted angiogenesis in the tumors. Thus, radiation-induced GDF15 is essential for the cross-talk between ECs and GBM cells and promotes angiogenesis. These findings indicate that GDF15 is a putative therapeutic target for patients with GBM undergoing radio-chemotherapy.
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Affiliation(s)
- Hyejin Park
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
- School of Radiological and Medico-Oncological Sciences, University of Science and Technology, Daejeon, South Korea
| | - Ki-Seok Nam
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
| | - Hae-June Lee
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
- School of Radiological and Medico-Oncological Sciences, University of Science and Technology, Daejeon, South Korea
- *Correspondence: Kwang Seok Kim, ; Hae-June Lee,
| | - Kwang Seok Kim
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
- School of Radiological and Medico-Oncological Sciences, University of Science and Technology, Daejeon, South Korea
- *Correspondence: Kwang Seok Kim, ; Hae-June Lee,
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13
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Matrix Metalloproteinases Shape the Tumor Microenvironment in Cancer Progression. Int J Mol Sci 2021; 23:ijms23010146. [PMID: 35008569 PMCID: PMC8745566 DOI: 10.3390/ijms23010146] [Citation(s) in RCA: 151] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/12/2022] Open
Abstract
Cancer progression with uncontrolled tumor growth, local invasion, and metastasis depends largely on the proteolytic activity of numerous matrix metalloproteinases (MMPs), which affect tissue integrity, immune cell recruitment, and tissue turnover by degrading extracellular matrix (ECM) components and by releasing matrikines, cell surface-bound cytokines, growth factors, or their receptors. Among the MMPs, MMP-14 is the driving force behind extracellular matrix and tissue destruction during cancer invasion and metastasis. MMP-14 also influences both intercellular as well as cell-matrix communication by regulating the activity of many plasma membrane-anchored and extracellular proteins. Cancer cells and other cells of the tumor stroma, embedded in a common extracellular matrix, interact with their matrix by means of various adhesive structures, of which particularly invadopodia are capable to remodel the matrix through spatially and temporally finely tuned proteolysis. As a deeper understanding of the underlying functional mechanisms is beneficial for the development of new prognostic and predictive markers and for targeted therapies, this review examined the current knowledge of the interplay of the various MMPs in the cancer context on the protein, subcellular, and cellular level with a focus on MMP14.
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14
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Kümper M, Hessenthaler S, Zamek J, Niland S, Pach E, Mauch C, Zigrino P. LOSS OF ENDOTHELIAL CELL MMP14 REDUCES MELANOMA GROWTH AND METASTASIS BY INCREASING TUMOR VESSEL STABILITY. J Invest Dermatol 2021; 142:1923-1933.e5. [DOI: 10.1016/j.jid.2021.12.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 12/03/2021] [Accepted: 12/14/2021] [Indexed: 12/13/2022]
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15
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Dynamic Expression of Membrane Type 1-Matrix Metalloproteinase (Mt1-mmp/Mmp14) in the Mouse Embryo. Cells 2021; 10:cells10092448. [PMID: 34572097 PMCID: PMC8465375 DOI: 10.3390/cells10092448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/03/2021] [Accepted: 09/15/2021] [Indexed: 01/13/2023] Open
Abstract
MT1-MMP/MMP14 belongs to a subgroup of the matrix metalloproteinases family that presents a transmembrane domain, with a cytosolic tail and the catalytic site exposed to the extracellular space. Deficient mice for this enzyme result in early postnatal death and display severe defects in skeletal, muscle and lung development. By using a transgenic line expressing the LacZ reporter under the control of the endogenous Mt1-mmp promoter, we reported a dynamic spatiotemporal expression pattern for Mt1-mmp from early embryonic to perinatal stages during cardiovascular development and brain formation. Thus, Mt1-mmp shows expression in the endocardium of the heart and the truncus arteriosus by E8.5, and is also strongly detected during vascular system development as well as in endothelial cells. In the brain, LacZ reporter expression was detected in the olfactory bulb, the rostral cerebral cortex and the caudal mesencephalic tectum. LacZ-positive cells were observed in neural progenitors of the spinal cord, neural crest cells and the intersomitic region. In the limb, Mt1-mmp expression was restricted to blood vessels, cartilage primordium and muscles. Detection of the enzyme was confirmed by Western blot and immunohistochemical analysis. We suggest novel functions for this metalloproteinase in angiogenesis, endocardial formation and vascularization during organogenesis. Moreover, Mt1-mmp expression revealed that the enzyme may contribute to heart, muscle and brain throughout development.
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16
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Kim MS, Ha SE, Wu M, Zogg H, Ronkon CF, Lee MY, Ro S. Extracellular Matrix Biomarkers in Colorectal Cancer. Int J Mol Sci 2021; 22:ijms22179185. [PMID: 34502094 PMCID: PMC8430714 DOI: 10.3390/ijms22179185] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/12/2021] [Accepted: 08/18/2021] [Indexed: 12/12/2022] Open
Abstract
The cellular microenvironment composition and changes therein play an extremely important role in cancer development. Changes in the extracellular matrix (ECM), which constitutes a majority of the tumor stroma, significantly contribute to the development of the tumor microenvironment. These alterations within the ECM and formation of the tumor microenvironment ultimately lead to tumor development, invasion, and metastasis. The ECM is composed of various molecules such as collagen, elastin, laminin, fibronectin, and the MMPs that cleave these protein fibers and play a central role in tissue remodeling. When healthy cells undergo an insult like DNA damage and become cancerous, if the ECM does not support these neoplastic cells, further development, invasion, and metastasis fail to occur. Therefore, ECM-related cancer research is indispensable, and ECM components can be useful biomarkers as well as therapeutic targets. Colorectal cancer specifically, is also affected by the ECM and many studies have been conducted to unravel the complex association between the two. Here we summarize the importance of several ECM components in colorectal cancer as well as their potential roles as biomarkers.
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Affiliation(s)
- Min-Seob Kim
- Department of Physiology, Digestive Disease Research Institute and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Iksan 54538, Korea; (M.-S.K.); (M.W.)
| | - Se-Eun Ha
- Department of Physiology and Cell Biology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA; (S.-E.H.); (H.Z.); (C.F.R.)
| | - Moxin Wu
- Department of Physiology, Digestive Disease Research Institute and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Iksan 54538, Korea; (M.-S.K.); (M.W.)
- Department of Medical Laboratory, Affiliated Hospital of Jiujiang University, Jiujiang 332000, China
| | - Hannah Zogg
- Department of Physiology and Cell Biology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA; (S.-E.H.); (H.Z.); (C.F.R.)
| | - Charles F. Ronkon
- Department of Physiology and Cell Biology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA; (S.-E.H.); (H.Z.); (C.F.R.)
| | - Moon-Young Lee
- Department of Physiology, Digestive Disease Research Institute and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Iksan 54538, Korea; (M.-S.K.); (M.W.)
- Correspondence: (M.-Y.L.); (S.R.)
| | - Seungil Ro
- Department of Physiology and Cell Biology, Reno School of Medicine, University of Nevada, Reno, NV 89557, USA; (S.-E.H.); (H.Z.); (C.F.R.)
- Correspondence: (M.-Y.L.); (S.R.)
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17
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Zhu L, Tang Y, Li XY, Keller ET, Yang J, Cho JS, Feinberg TY, Weiss SJ. Osteoclast-mediated bone resorption is controlled by a compensatory network of secreted and membrane-tethered metalloproteinases. Sci Transl Med 2021; 12:12/529/eaaw6143. [PMID: 32024800 DOI: 10.1126/scitranslmed.aaw6143] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 10/03/2019] [Accepted: 01/02/2020] [Indexed: 12/11/2022]
Abstract
Osteoclasts actively remodel both the mineral and proteinaceous components of bone during normal growth and development as well as pathologic states ranging from osteoporosis to bone metastasis. The cysteine proteinase cathepsin K confers osteoclasts with potent type I collagenolytic activity; however, cathepsin K-null mice, as well as cathepsin K-mutant humans, continue to remodel bone and degrade collagen by as-yet-undefined effectors. Here, we identify a cathepsin K-independent collagenolytic system in osteoclasts that is composed of a functionally redundant network of the secreted matrix metalloproteinase MMP9 and the membrane-anchored matrix metalloproteinase MMP14. Unexpectedly, whereas deleting either of the proteinases individually leaves bone resorption intact, dual targeting of Mmp9 and Mmp14 inhibited the resorptive activity of mouse osteoclasts in vitro and in vivo and human osteoclasts in vitro. In vivo, Mmp9/Mmp14 conditional double-knockout mice exhibited marked increases in bone density and displayed a highly protected status against either parathyroid hormone- or ovariectomy-induced pathologic bone loss. Together, these studies characterize a collagenolytic system operative in mouse and human osteoclasts and identify the MMP9/MMP14 axis as a potential target for therapeutic interventions for bone-wasting disease states.
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Affiliation(s)
- Lingxin Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China. .,Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.,Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yi Tang
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.,Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Xiao-Yan Li
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.,Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Evan T Keller
- Department of Pathology, Department of Urology and the Institute of Gerontology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jingwen Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China.,School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jung-Sun Cho
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.,Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Tamar Y Feinberg
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.,Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Stephen J Weiss
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA. .,Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
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18
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Soltantoyeh T, Akbari B, Karimi A, Mahmoodi Chalbatani G, Ghahri-Saremi N, Hadjati J, Hamblin MR, Mirzaei HR. Chimeric Antigen Receptor (CAR) T Cell Therapy for Metastatic Melanoma: Challenges and Road Ahead. Cells 2021; 10:cells10061450. [PMID: 34207884 PMCID: PMC8230324 DOI: 10.3390/cells10061450] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/31/2021] [Accepted: 06/09/2021] [Indexed: 12/11/2022] Open
Abstract
Metastatic melanoma is the most aggressive and difficult to treat type of skin cancer, with a survival rate of less than 10%. Metastatic melanoma has conventionally been considered very difficult to treat; however, recent progress in understanding the cellular and molecular mechanisms involved in the tumorigenesis, metastasis and immune escape have led to the introduction of new therapies. These include targeted molecular therapy and novel immune-based approaches such as immune checkpoint blockade (ICB), tumor-infiltrating lymphocytes (TILs), and genetically engineered T-lymphocytes such as chimeric antigen receptor (CAR) T cells. Among these, CAR T cell therapy has recently made promising strides towards the treatment of advanced hematological and solid cancers. Although CAR T cell therapy might offer new hope for melanoma patients, it is not without its shortcomings, which include off-target toxicity, and the emergence of resistance to therapy (e.g., due to antigen loss), leading to eventual relapse. The present review will not only describe the basic steps of melanoma metastasis, but also discuss how CAR T cells could treat metastatic melanoma. We will outline specific strategies including combination approaches that could be used to overcome some limitations of CAR T cell therapy for metastatic melanoma.
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Affiliation(s)
- Tahereh Soltantoyeh
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (T.S.); (B.A.); (G.M.C.); (N.G.-S.); (J.H.)
| | - Behnia Akbari
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (T.S.); (B.A.); (G.M.C.); (N.G.-S.); (J.H.)
| | - Amirali Karimi
- School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran;
| | - Ghanbar Mahmoodi Chalbatani
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (T.S.); (B.A.); (G.M.C.); (N.G.-S.); (J.H.)
| | - Navid Ghahri-Saremi
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (T.S.); (B.A.); (G.M.C.); (N.G.-S.); (J.H.)
| | - Jamshid Hadjati
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (T.S.); (B.A.); (G.M.C.); (N.G.-S.); (J.H.)
| | - Michael R. Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein 2028, South Africa;
- Radiation Biology Research Center, Iran University of Medical Sciences, Tehran 1449614535, Iran
| | - Hamid Reza Mirzaei
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (T.S.); (B.A.); (G.M.C.); (N.G.-S.); (J.H.)
- Correspondence: ; Tel.: +98-21-64053268; Fax: +98-21-66419536
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19
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Kanazawa Y, Nagano M, Koinuma S, Sugiyo S, Shigeyoshi Y. Effects of aging on basement membrane-related gene expression of the skeletal muscle in rats. Biomed Res 2021; 42:115-119. [PMID: 34092753 DOI: 10.2220/biomedres.42.115] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The basement membrane (BM), with collagen IV as a major component, plays an important role in the maintenance of muscle structure and its robustness. To investigate the effects of aging on factors related to BM construction, we compared the expression status of these factors in 3- and 20-month-old male Wistar rats. The expression levels of Col4a1 and Col4a2 (encoding collagen IV), Sparc (involved in collagen IV functionalization), and Mmp14 (a collagen IV degradation factor) were decreased. These results suggest that aging suppresses collagen IV synthetic and degradative factors and affects BM-related factors in the steady state.
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Affiliation(s)
- Yuji Kanazawa
- Department of Medical Technology and Clinical Engineering, Hokuriku University.,Department of Anatomy and Neurobiology, Graduate school of Medical Sciences, Kindai University
| | - Mamoru Nagano
- Department of Anatomy and Neurobiology, Graduate school of Medical Sciences, Kindai University
| | - Satoshi Koinuma
- Department of Anatomy and Neurobiology, Graduate school of Medical Sciences, Kindai University
| | - Shinichi Sugiyo
- Department of Physical Therapy, Osaka University of Human Sciences
| | - Yasufumi Shigeyoshi
- Department of Anatomy and Neurobiology, Graduate school of Medical Sciences, Kindai University
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20
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Pouw AE, Greiner MA, Coussa RG, Jiao C, Han IC, Skeie JM, Fingert JH, Mullins RF, Sohn EH. Cell-Matrix Interactions in the Eye: From Cornea to Choroid. Cells 2021; 10:687. [PMID: 33804633 PMCID: PMC8003714 DOI: 10.3390/cells10030687] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/03/2021] [Accepted: 03/16/2021] [Indexed: 02/07/2023] Open
Abstract
The extracellular matrix (ECM) plays a crucial role in all parts of the eye, from maintaining clarity and hydration of the cornea and vitreous to regulating angiogenesis, intraocular pressure maintenance, and vascular signaling. This review focuses on the interactions of the ECM for homeostasis of normal physiologic functions of the cornea, vitreous, retina, retinal pigment epithelium, Bruch's membrane, and choroid as well as trabecular meshwork, optic nerve, conjunctiva and tenon's layer as it relates to glaucoma. A variety of pathways and key factors related to ECM in the eye are discussed, including but not limited to those related to transforming growth factor-β, vascular endothelial growth factor, basic-fibroblastic growth factor, connective tissue growth factor, matrix metalloproteinases (including MMP-2 and MMP-9, and MMP-14), collagen IV, fibronectin, elastin, canonical signaling, integrins, and endothelial morphogenesis consistent of cellular activation-tubulogenesis and cellular differentiation-stabilization. Alterations contributing to disease states such as wound healing, diabetes-related complications, Fuchs endothelial corneal dystrophy, angiogenesis, fibrosis, age-related macular degeneration, retinal detachment, and posteriorly inserted vitreous base are also reviewed.
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Affiliation(s)
- Andrew E. Pouw
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA 52242, USA; (A.E.P.); (M.A.G.); (R.G.C.); (C.J.); (I.C.H.); (J.M.S.); (J.H.F.); (R.F.M.)
- Institute for Vision Research, University of Iowa, Iowa City, IA 52242, USA
| | - Mark A. Greiner
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA 52242, USA; (A.E.P.); (M.A.G.); (R.G.C.); (C.J.); (I.C.H.); (J.M.S.); (J.H.F.); (R.F.M.)
- Institute for Vision Research, University of Iowa, Iowa City, IA 52242, USA
| | - Razek G. Coussa
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA 52242, USA; (A.E.P.); (M.A.G.); (R.G.C.); (C.J.); (I.C.H.); (J.M.S.); (J.H.F.); (R.F.M.)
- Institute for Vision Research, University of Iowa, Iowa City, IA 52242, USA
| | - Chunhua Jiao
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA 52242, USA; (A.E.P.); (M.A.G.); (R.G.C.); (C.J.); (I.C.H.); (J.M.S.); (J.H.F.); (R.F.M.)
- Institute for Vision Research, University of Iowa, Iowa City, IA 52242, USA
| | - Ian C. Han
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA 52242, USA; (A.E.P.); (M.A.G.); (R.G.C.); (C.J.); (I.C.H.); (J.M.S.); (J.H.F.); (R.F.M.)
- Institute for Vision Research, University of Iowa, Iowa City, IA 52242, USA
| | - Jessica M. Skeie
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA 52242, USA; (A.E.P.); (M.A.G.); (R.G.C.); (C.J.); (I.C.H.); (J.M.S.); (J.H.F.); (R.F.M.)
| | - John H. Fingert
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA 52242, USA; (A.E.P.); (M.A.G.); (R.G.C.); (C.J.); (I.C.H.); (J.M.S.); (J.H.F.); (R.F.M.)
- Institute for Vision Research, University of Iowa, Iowa City, IA 52242, USA
| | - Robert F. Mullins
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA 52242, USA; (A.E.P.); (M.A.G.); (R.G.C.); (C.J.); (I.C.H.); (J.M.S.); (J.H.F.); (R.F.M.)
- Institute for Vision Research, University of Iowa, Iowa City, IA 52242, USA
| | - Elliott H. Sohn
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA 52242, USA; (A.E.P.); (M.A.G.); (R.G.C.); (C.J.); (I.C.H.); (J.M.S.); (J.H.F.); (R.F.M.)
- Institute for Vision Research, University of Iowa, Iowa City, IA 52242, USA
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21
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Crist AM, Zhou X, Garai J, Lee AR, Thoele J, Ullmer C, Klein C, Zabaleta J, Meadows SM. Angiopoietin-2 Inhibition Rescues Arteriovenous Malformation in a Smad4 Hereditary Hemorrhagic Telangiectasia Mouse Model. Circulation 2020; 139:2049-2063. [PMID: 30744395 DOI: 10.1161/circulationaha.118.036952] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Hereditary hemorrhagic telangiectasia is an autosomal dominant vascular disorder caused by heterozygous, loss-of-function mutations in 4 transforming growth factor beta (TGFβ) pathway members, including the central transcriptional mediator of the TGFβ pathway, Smad4. Loss of Smad4 causes the formation of inappropriate, fragile connections between arteries and veins called arteriovenous malformations (AVMs), which can hemorrhage leading to stroke, aneurysm, or death. Unfortunately, the molecular mechanisms underlying AVM pathogenesis remain poorly understood, and the TGFβ downstream effectors responsible for hereditary hemorrhagic telangiectasia-associated AVM formation are currently unknown. METHODS To identify potential biological targets of the TGFβ pathway involved in AVM formation, we performed RNA- and chromatin immunoprecipitation-sequencing experiments on BMP9 (bone morphogenetic protein 9)-stimulated endothelial cells (ECs) and isolated ECs from a Smad4-inducible, EC-specific knockout ( Smad4-iECKO) mouse model that develops retinal AVMs. These sequencing studies identified the angiopoietin-Tek signaling pathway as a downstream target of SMAD4. We used monoclonal blocking antibodies to target a specific component in this pathway and assess its effects on AVM development. RESULTS Sequencing studies uncovered 212 potential biological targets involved in AVM formation, including the EC surface receptor, TEK (TEK receptor tyrosine kinase) and its antagonistic ligand, ANGPT2 (angiopoietin-2). In Smad4-iECKO mice, Angpt2 expression is robustly increased, whereas Tek levels are decreased, resulting in an overall reduction in angiopoietin-Tek signaling. We provide evidence that SMAD4 directly represses Angpt2 transcription in ECs. Inhibition of ANGPT2 function in Smad4-deficient mice, either before or after AVMs form, prevents and alleviates AVM formation and normalizes vessel diameters. These rescue effects are attributed to a reversion in EC morphological changes, such as cell size and shape that are altered in the absence of Smad4. CONCLUSIONS Our studies provide a novel mechanism whereby the loss of Smad4 causes increased Angpt2 transcription in ECs leading to AVM formation, increased blood vessel calibers, and changes in EC morphology in the retina. Blockade of ANGPT2 function in an in vivo Smad4 model of hereditary hemorrhagic telangiectasia alleviated these vascular phenotypes, further implicating ANGPT2 as an important TGFβ downstream mediator of AVM formation. Therefore, alternative approaches that target ANGPT2 function may have therapeutic value for the alleviation of hereditary hemorrhagic telangiectasia symptoms, such as AVMs.
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Affiliation(s)
- Angela M Crist
- Cell and Molecular Biology Department, Tulane University, New Orleans, LA (A.M.C., X.Z., A.R.L., S.M.M.)
| | - Xingyan Zhou
- Cell and Molecular Biology Department, Tulane University, New Orleans, LA (A.M.C., X.Z., A.R.L., S.M.M.)
| | - Jone Garai
- Department of Pediatrics and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans (J.G., J.Z.)
| | - Amanda R Lee
- Cell and Molecular Biology Department, Tulane University, New Orleans, LA (A.M.C., X.Z., A.R.L., S.M.M.)
| | - Janina Thoele
- Roche Innovation Center, Basel, Switzerland (J.T., C.U.)
| | | | | | - Jovanny Zabaleta
- Department of Pediatrics and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans (J.G., J.Z.)
| | - Stryder M Meadows
- Cell and Molecular Biology Department, Tulane University, New Orleans, LA (A.M.C., X.Z., A.R.L., S.M.M.)
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22
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Esteban S, Clemente C, Koziol A, Gonzalo P, Rius C, Martínez F, Linares PM, Chaparro M, Urzainqui A, Andrés V, Seiki M, Gisbert JP, Arroyo AG. Endothelial MT1-MMP targeting limits intussusceptive angiogenesis and colitis via TSP1/nitric oxide axis. EMBO Mol Med 2020; 12:e10862. [PMID: 31793743 PMCID: PMC7005619 DOI: 10.15252/emmm.201910862] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 11/05/2019] [Accepted: 11/08/2019] [Indexed: 12/27/2022] Open
Abstract
Pathological angiogenesis contributes to cancer progression and chronic inflammatory diseases. In inflammatory bowel disease, the microvasculature expands by intussusceptive angiogenesis (IA), a poorly characterized mechanism involving increased blood flow and splitting of pre-existing capillaries. In this report, mice lacking the protease MT1-MMP in endothelial cells (MT1iΔEC ) presented limited IA in the capillary plexus of the colon mucosa assessed by 3D imaging during 1% DSS-induced colitis. This resulted in better tissue perfusion, preserved intestinal morphology, and milder disease activity index. Combined in vivo intravital microscopy and lentiviral rescue experiments with in vitro cell culture demonstrated that MT1-MMP activity in endothelial cells is required for vasodilation and IA, as well as for nitric oxide production via binding of the C-terminal fragment of MT1-MMP substrate thrombospondin-1 (TSP1) to CD47/αvβ3 integrin. Moreover, TSP1 levels were significantly higher in serum from IBD patients and in vivo administration of an anti-MT1-MMP inhibitory antibody or a nonamer peptide spanning the αvβ3 integrin binding site in TSP1 reduced IA during mouse colitis. Our results identify MT1-MMP as a new actor in inflammatory IA and a promising therapeutic target for inflammatory bowel disease.
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Affiliation(s)
- Sergio Esteban
- Vascular Pathophysiology AreaCentro Nacional de Investigaciones Cardiovasculares (CNIC)MadridSpain
| | - Cristina Clemente
- Vascular Pathophysiology AreaCentro Nacional de Investigaciones Cardiovasculares (CNIC)MadridSpain
- Centro de Investigaciones Biológicas (CIB‐CSIC)MadridSpain
| | - Agnieszka Koziol
- Vascular Pathophysiology AreaCentro Nacional de Investigaciones Cardiovasculares (CNIC)MadridSpain
| | - Pilar Gonzalo
- Vascular Pathophysiology AreaCentro Nacional de Investigaciones Cardiovasculares (CNIC)MadridSpain
| | - Cristina Rius
- Vascular Pathophysiology AreaCentro Nacional de Investigaciones Cardiovasculares (CNIC)MadridSpain
- CIBER de Enfermedades Cardiovasculares (CIBER‐CV)MadridSpain
| | - Fernando Martínez
- Bioinformatics UnitCentro Nacional de Investigaciones Cardiovasculares (CNIC)MadridSpain
| | - Pablo M Linares
- Gastroenterology UnitHospital Universitario de La PrincesaInstituto de Investigación Sanitaria Princesa (IIS‐IP)Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBER‐EHD)Universidad Autónoma de MadridMadridSpain
| | - María Chaparro
- Gastroenterology UnitHospital Universitario de La PrincesaInstituto de Investigación Sanitaria Princesa (IIS‐IP)Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBER‐EHD)Universidad Autónoma de MadridMadridSpain
| | - Ana Urzainqui
- Immunology DepartmentFIB‐Hospital Universitario de La PrincesaInstituto de Investigación Sanitaria Princesa (IIS‐IP)MadridSpain
| | - Vicente Andrés
- Vascular Pathophysiology AreaCentro Nacional de Investigaciones Cardiovasculares (CNIC)MadridSpain
- CIBER de Enfermedades Cardiovasculares (CIBER‐CV)MadridSpain
| | - Motoharu Seiki
- Division of Cancer Cell ResearchInstitute of Medical ScienceUniversity of TokyoTokyoJapan
| | - Javier P Gisbert
- Gastroenterology UnitHospital Universitario de La PrincesaInstituto de Investigación Sanitaria Princesa (IIS‐IP)Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBER‐EHD)Universidad Autónoma de MadridMadridSpain
| | - Alicia G Arroyo
- Vascular Pathophysiology AreaCentro Nacional de Investigaciones Cardiovasculares (CNIC)MadridSpain
- Centro de Investigaciones Biológicas (CIB‐CSIC)MadridSpain
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23
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Edatt L, Poyyakkara A, Raji GR, Ramachandran V, Shankar SS, Kumar VBS. Role of Sirtuins in Tumor Angiogenesis. Front Oncol 2020; 9:1516. [PMID: 32010617 PMCID: PMC6978795 DOI: 10.3389/fonc.2019.01516] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 12/16/2019] [Indexed: 12/11/2022] Open
Abstract
Generally, changes in the metabolic status of cells under conditions like hypoxia and accumulation of lactate can be sensed by various sensing mechanisms, leading to modulation of a number of signal transduction pathways and transcription factors. Several of the proangiogenic cytokines like VEGF, FGF, PDGF, TGF-β, Ang-2, ILs, etc. are secreted by cancer cells, under hypoxic microenvironment. These cytokines bind to their receptors on the endothelial cells and activates a number of signaling pathways including Akt/PIP3, Src, p38/MAPK, Smad2/3, etc., which ultimately results in the proliferation and migration of endothelial cells. Transcription factors that are activated in response to the metabolic status of tumors include HIFs, NF-κb, p53, El-2, and FOXO. Many of these transcription factors has been reported to be regulated by a class of histone deacetylase called sirtuins. Sirtuins are NAD+ dependent histone deacetylases that play pivotal role in the regulation of tumor cell metabolism, proliferation, migration and angiogenesis. The major function of sirtuins include, deacetylation of histones as well as some non-histone proteins like NF-κB, FOXOs, PPAR⋎, PGC1-α, enzymes like acetyl coenzymeA and structural proteins like α tubulin. In the cell, sirtuins are generally considered as the redox sensors and their activities are dependent on the metabolic status of the cell. Understanding the intricate regulatory mechanisms adopted by sirtuins, is crucial in devising effective therapeutic strategies against angiogenesis, metastasis and tumor progression. Keeping this in mind, the present review focuses on the role of sirtuins in the process of tumor angiogenesis and the regulatory mechanisms employed by them.
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Affiliation(s)
| | | | | | | | | | - V. B. Sameer Kumar
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Kasaragod, India
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24
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Beamish JA, Juliar BA, Cleveland DS, Busch ME, Nimmagadda L, Putnam AJ. Deciphering the relative roles of matrix metalloproteinase- and plasmin-mediated matrix degradation during capillary morphogenesis using engineered hydrogels. J Biomed Mater Res B Appl Biomater 2019; 107:2507-2516. [PMID: 30784190 PMCID: PMC6699943 DOI: 10.1002/jbm.b.34341] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 01/09/2019] [Accepted: 01/26/2019] [Indexed: 12/20/2022]
Abstract
Extracellular matrix (ECM) remodeling is essential for the process of capillary morphogenesis. Here we employed synthetic poly(ethylene glycol) (PEG) hydrogels engineered with proteolytic specificity to either matrix metalloproteinases (MMPs), plasmin, or both to investigate the relative contributions of MMP- and plasmin-mediated ECM remodeling to vessel formation in a 3D-model of capillary self-assembly analogous to vasculogenesis. We first demonstrated a role for both MMP- and plasmin-mediated mechanisms of ECM remodeling in an endothelial-fibroblast co-culture model of vasculogenesis in fibrin hydrogels using inhibitors of MMPs and plasmin. When this co-culture model was employed in engineered PEG hydrogels with selective protease sensitivity, we observed robust capillary morphogenesis only in MMP-sensitive matrices. Fibroblast spreading in plasmin-selective hydrogels confirmed this difference was due to protease preference by endothelial cells, not due to limitations of the matrix itself. In hydrogels engineered with crosslinks that were dually susceptible to MMPs and plasmin, capillary morphogenesis was unchanged. These findings highlight the critical importance of MMP-mediated degradation during vasculogenesis and provide strong evidence to justify the preferential selection of MMP-degradable peptide crosslinkers in synthetic hydrogels used to study vascular morphogenesis and promote vascularization. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B:2507-2516, 2019.
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Affiliation(s)
- Jeffrey A. Beamish
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Benjamin A. Juliar
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan
| | - David S. Cleveland
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan
| | - Megan E. Busch
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan
| | - Likitha Nimmagadda
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan
| | - Andrew J. Putnam
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan
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25
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Mehes E, Barath M, Gulyas M, Bugyik E, Geiszt M, Szoor A, Lanyi A, Czirok A. Enhanced endothelial motility and multicellular sprouting is mediated by the scaffold protein TKS4. Sci Rep 2019; 9:14363. [PMID: 31591456 PMCID: PMC6779758 DOI: 10.1038/s41598-019-50915-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 09/17/2019] [Indexed: 01/15/2023] Open
Abstract
Endothelial cell motility has fundamental role in vasculogenesis and angiogenesis during developmental or pathological processes. Tks4 is a scaffold protein known to organize the cytoskeleton of lamellipodia and podosomes, and thus modulating cell motility and invasion. In particular, Tks4 is required for the localization and activity of membrane type 1-matrix metalloproteinase, a key factor for extracellular matrix (ECM) cleavage during cell migration. While its role in transformed cells is well established, little is known about the function of Tks4 under physiological conditions. In this study we examined the impact of Tks4 gene silencing on the functional activity of primary human umbilical vein endothelial cells (HUVEC) and used time-lapse videomicrosopy and quantitative image analysis to characterize cell motility phenotypes in culture. We demonstrate that the absence of Tks4 in endothelial cells leads to impaired ECM cleavage and decreased motility within a 3-dimensional ECM environment. Furthermore, absence of Tks4 also decreases the ability of HUVEC cells to form multicellular sprouts, a key requirement for angiogenesis. To establish the involvement of Tks4 in vascular development in vivo, we show that loss of Tks4 leads sparser vasculature in the fetal chorion in the Tks4-deficient ‘nee’ mouse strain.
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Affiliation(s)
- Elod Mehes
- Department of Biological Physics, Eotvos University, Budapest, Hungary
| | - Monika Barath
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Department of Physiology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Marton Gulyas
- Department of Biological Physics, Eotvos University, Budapest, Hungary
| | - Edina Bugyik
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Miklos Geiszt
- Department of Physiology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Arpad Szoor
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Arpad Lanyi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Andras Czirok
- Department of Biological Physics, Eotvos University, Budapest, Hungary. .,Department of Anatomy & Cell Biology, University of Kansas Medical Center, Kansas City, KS, USA.
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26
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Jászai J, Schmidt MHH. Trends and Challenges in Tumor Anti-Angiogenic Therapies. Cells 2019; 8:cells8091102. [PMID: 31540455 PMCID: PMC6770676 DOI: 10.3390/cells8091102] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/09/2019] [Accepted: 09/14/2019] [Indexed: 01/18/2023] Open
Abstract
Excessive abnormal angiogenesis plays a pivotal role in tumor progression and is a hallmark of solid tumors. This process is driven by an imbalance between pro- and anti-angiogenic factors dominated by the tissue hypoxia-triggered overproduction of vascular endothelial growth factor (VEGF). VEGF-mediated signaling has quickly become one of the most promising anti-angiogenic therapeutic targets in oncology. Nevertheless, the clinical efficacy of this approach is severely limited in certain tumor types or shows only transient efficacy in patients. Acquired or intrinsic therapy resistance associated with anti-VEGF monotherapeutic approaches indicates the necessity of a paradigm change when targeting neoangiogenesis in solid tumors. In this context, the elaboration of the conceptual framework of “vessel normalization” might be a promising approach to increase the efficacy of anti-angiogenic therapies and the survival rates of patients. Indeed, the promotion of vessel maturation instead of regressing tumors by vaso-obliteration could result in reduced tumor hypoxia and improved drug delivery. The implementation of such anti-angiogenic strategies, however, faces several pitfalls due to the potential involvement of multiple pro-angiogenic factors and modulatory effects of the innate and adaptive immune system. Thus, effective treatments bypassing relapses associated with anti-VEGF monotherapies or breaking the intrinsic therapy resistance of solid tumors might use combination therapies or agents with a multimodal mode of action. This review enumerates some of the current approaches and possible future directions of treating solid tumors by targeting neovascularization.
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Affiliation(s)
- József Jászai
- Institute of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden School of Medicine, 01307 Dresden, Germany.
| | - Mirko H H Schmidt
- Institute of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden School of Medicine, 01307 Dresden, Germany.
- German Cancer Consortium (DKTK), Partner Site Dresden, 01307 Dresden, Germany.
- German Cancer Research Center (DKFZ), 61920 Heidelberg, Germany.
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27
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Hsu KS, Otsu W, Li Y, Wang HC, Chen S, Tsang SH, Chuang JZ, Sung CH. CLIC4 regulates late endosomal trafficking and matrix degradation activity of MMP14 at focal adhesions in RPE cells. Sci Rep 2019; 9:12247. [PMID: 31439888 PMCID: PMC6706427 DOI: 10.1038/s41598-019-48438-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 08/05/2019] [Indexed: 12/17/2022] Open
Abstract
Dysregulation in the extracellular matrix (ECM) microenvironment surrounding the retinal pigment epithelium (RPE) has been implicated in the etiology of proliferative vitreoretinopathy and age-related macular degeneration. The regulation of ECM remodeling by RPE cells is not well understood. We show that membrane-type matrix metalloproteinase 14 (MMP14) is central to ECM degradation at the focal adhesions in human ARPE19 cells. The matrix degradative activity, but not the assembly, of the focal adhesion is regulated by chloride intracellular channel 4 (CLIC4). CLIC4 is co-localized with MMP14 in the late endosome. CLIC4 regulates the proper sorting of MMP14 into the lumen of the late endosome and its proteolytic activation in lipid rafts. CLIC4 has the newly-identified “late domain” motif that binds to MMP14 and to Tsg101, a component of the endosomal sorting complex required for transport (ESCRT) complex. Unlike the late domain mutant CLIC4, wild-type CLIC4 can rescue the late endosomal sorting defect of MMP14. Finally, CLIC4 knockdown inhibits the apical secretion of MMP2 in polarized human RPE monolayers. These results, taken together, demonstrate that CLIC4 is a novel matrix microenvironment modulator and a novel regulator for late endosomal cargo sorting. Moreover, the late endosomal sorting of MMP14 actively regulates its surface activation in RPE cells.
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Affiliation(s)
- Kuo-Shun Hsu
- Department of Ophthalmology, Weill Medical College of Cornell University, New York, NY, USA.,Department of Surgery, Colorectal Service and Laboratory of Signal Transduction, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Wataru Otsu
- Department of Ophthalmology, Weill Medical College of Cornell University, New York, NY, USA.,Department of Biomedical Research Laboratory, Gifu Pharmaceutical University, Gifu, Japan
| | - Yao Li
- Department of Ophthalmology, Columbia University, New York, NY, USA
| | - Heuy-Ching Wang
- Ocular Trauma Task Area, US Army Institute of Surgical Research, Joint Base San Antonio-Fort Sam Houston, TX, San Antonio, USA
| | - Shuibing Chen
- Department of Surgery and Department of Biochemistry, Weill Medical College of Cornell University, New York, NY, USA
| | - Stephen H Tsang
- Department of Ophthalmology, Columbia University, New York, NY, USA.,Institute of Human Nutrition, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.,Jonas Children's Vision Care and Bernard & Shirlee Brown Glaucoma Laboratory, Edward S. Harkness Eye Institute, New York-Presbyterian Hospital, New York, NY, USA.,Department of Pathology & Cell Biology, and Columbia Stem Cell Initiative, Columbia University Medical Center, New York, NY, USA
| | - Jen-Zen Chuang
- Department of Ophthalmology, Weill Medical College of Cornell University, New York, NY, USA
| | - Ching-Hwa Sung
- Department of Ophthalmology, Weill Medical College of Cornell University, New York, NY, USA. .,Department of Cell and Developmental Biology, Weill Medical College of Cornell University, New York, NY, USA.
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28
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Lin Y, Li L, Liu J, Zhao X, Ye J, Reinach PS, Qu J, Yan D. SIRT1 Deletion Impairs Retinal Endothelial Cell Migration Through Downregulation of VEGF-A/VEGFR-2 and MMP14. Invest Ophthalmol Vis Sci 2019; 59:5431-5440. [PMID: 30452596 DOI: 10.1167/iovs.17-23558] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Silent information regulator protein 1 (SIRT1) is a nicotinamide adenine dinucleotide-dependent deacetylase that is abundantly expressed in vascular endothelial cells (VECs), and it has an essential role in angiogenesis. However, its contribution to retinal vascular development remains unclear. Here we characterize its involvement in regulating this process under both physiological and pathologic conditions. Methods Endothelium-specific Sirt1 knockout mice were established using the Cre-lox system. VECs were isolated using magnetic beads and identified by immunostaining. Retinal whole-mount staining analyzed the retinal vascular patterns. SIRT1 was knocked down or overexpressed in human retinal microvascular endothelial cells (HRMECs) using small interfering RNA (siRNA) or lentivirus infection, respectively. Scratch assay, Transwell, and Matrigel angiogenesis assay evaluated cell migration and tube formation, respectively. Quantitative RT-PCR analyzed genes regulating VEC migration. Western blotting determined protein expression. Coimmunoprecipitation detected the interaction of hypoxia-inducible factor 1α (HIF-1α) and SIRT1 as well as acetylation status of HIF-1α. Results Specific deletion of Sirt1 in VECs dramatically delayed retinal vessel expansion and reduced vessel density. In the oxygen-induced retinopathy (OIR) mouse model, Sirt1 ablation markedly suppressed retinal revascularization and consequently increased retinal avascularity. SIRT1 downregulation in HRMECs inhibited cell migration and tube formation, while overexpression of SIRT1 had the opposite effects. Vascular endothelial growth factor-A (VEGF-A)/VEGF receptor-2 (VEGFR-2), and matrix metalloproteinases 14 (MMP14) expression significantly declined in Sirt1-null VECs, as well as SIRT1 siRNA-transfected HRMECs. SIRT1 downregulation upregulated the HIF-1α acetylation status. Conversely, SIRT1 overexpression decreased this response. Conclusions SIRT1 contributes to both physiological and pathologic retinal angiogenesis through promoting retinal VEC migration. Its underlying molecular mechanism involves SIRT1-mediated deacetylation of HIF-1α and subsequent upregulation of VEGF-A/VEGFR-2 and MMP14 expression.
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Affiliation(s)
- Yong Lin
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang, China
| | - Li Li
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang, China
| | - Junjie Liu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang, China
| | - Xiaoting Zhao
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang, China
| | - Juxiu Ye
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang, China
| | - Peter S Reinach
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang, China
| | - Jia Qu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang, China
| | - Dongsheng Yan
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou, Zhejiang, China
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29
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de Souza Junior DA, Santana C, Vieira GV, Oliver C, Jamur MC. Mast Cell Protease 7 Promotes Angiogenesis by Degradation of Integrin Subunits. Cells 2019; 8:cells8040349. [PMID: 31013764 PMCID: PMC6523500 DOI: 10.3390/cells8040349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/02/2019] [Accepted: 04/10/2019] [Indexed: 12/17/2022] Open
Abstract
Previous studies from our laboratory have shown that during angiogenesis in vitro, rmMCP-7 (recombinant mouse mast cell protease-7) stimulates endothelial cell spreading and induces their penetration into the matrix. The ability of rmMCP-7 to induce angiogenesis in vivo was assessed in the present study using a directed in vivo angiogenesis assay (DIVAA™). Vessel invasion of the angioreactor was observed in the presence of rmMCP-7 but was not seen in the control. Since integrins are involved in endothelial cell migration, the relationship between rmMCP-7 and integrins during angiogenesis was investigated. Incubation with rmMCP-7 resulted in a reduction in the levels of integrin subunits αv and β1 on SVEC4-10 endothelial cells during angiogenesis in vitro. Furthermore, the degradation of integrin subunits occurs both through the direct action of rmMCP-7 and indirectly via the ubiquitin/proteasome system. Even in the presence of a proteasome inhibitor, incubation of endothelial cells with rmMCP-7 induced cell migration and tube formation as well as the beginning of loop formation. These data indicate that the direct degradation of the integrin subunits by rmMCP-7 is sufficient to initiate angiogenesis. The results demonstrate, for the first time, that mMCP-7 acts in angiogenesis through integrin degradation.
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Affiliation(s)
- Devandir A de Souza Junior
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14.049-900, Brazil.
| | - Carolina Santana
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14.049-900, Brazil.
| | - Gabriel V Vieira
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14.049-900, Brazil.
| | - Constance Oliver
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14.049-900, Brazil.
| | - Maria Celia Jamur
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14.049-900, Brazil.
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30
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Duran CL, Abbey CA, Bayless KJ. Establishment of a three-dimensional model to study human uterine angiogenesis. Mol Hum Reprod 2019; 24:74-93. [PMID: 29329415 DOI: 10.1093/molehr/gax064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 12/19/2017] [Indexed: 01/29/2023] Open
Abstract
STUDY QUESTION Can primary human uterine microvascular endothelial cells (UtMVECs) be used as a model to study uterine angiogenic responses in vitro that are relevant in pregnancy? SUMMARY ANSWER UtMVECs demonstrated angiogenic responses when stimulated with proangiogenic factors, including sphingosine 1-phosphate (S1P), vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), physiological levels of wall shear stress (WSS), human chorionic gonadotropin (hCG) and various combinations of estrogen and progesterone. WHAT IS KNOWN ALREADY During sprouting angiogenesis, signaling from growth factors and cytokines induces a monolayer of quiescent endothelial cells (ECs) lining the vasculature to degrade the extracellular matrix and invade the surrounding tissue to form new capillaries. During pregnancy and the female reproductive cycle, the uterine endothelium becomes activated and undergoes sprouting angiogenesis to increase the size and number of blood vessels in the endometrium. STUDY DESIGN, SIZE, DURATION The study was designed to examine the angiogenic potential of primary human UtMVECs using the well-characterized human umbilical vein EC (HUVEC) line as a control to compare angiogenic potential. ECs were seeded onto three-dimensional (3D) collagen matrices, supplemented with known proangiogenic stimuli relevant to pregnancy and allowed to invade for 24 h. Sprouting responses were analyzed using manual and automated methods for quantification. PARTICIPANTS/MATERIALS, SETTING, METHODS RT-PCR, Western blot analysis and immunostaining were used to characterize UtMVECs. Angiogenic responses were examined using 3D invasion assays. Western blotting was used to confirm signaling responses after proangiogenic lipid, pharmacological inhibitor, and recombinant lentiviral treatments. All experiments were repeated at least three times. MAIN RESULTS AND THE ROLE OF CHANCE After ensuring that UtMVECs expressed the proper endothelial markers, we found that UtMVECs invade 3D collagen matrices dose-dependently in response to known proangiogenic stimuli (e.g. S1P, VEGF, bFGF, hCG, estrogen, progesterone and WSS) present during early pregnancy. Invasion responses were positively correlated with phosphorylation of phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) and p42/p44 mitogen-activated protein kinase (ERK). Inhibition of these second messengers significantly impaired sprouting (P < 0.01). Gene silencing of membrane type 1-matrix metalloproteinase using multiple approaches completely abrogated sprouting (P < 0.001). Finally, UtMVECs displayed a unique ability to undergo sprouting in response to hCG, and combined estrogen and progesterone treatment. LARGE SCALE DATA Not applicable. LIMITATIONS, REASONS FOR CAUTION The study of uterine angiogenesis in vitro has limitations and any findings many not fully represent the in vivo state. However, these experiments do provide evidence for the ability of UtMVECs to be used in functional sprouting assays in a 3D environment, stimulated by physiological factors that are produced locally within the uterus during early pregnancy. WIDER IMPLICATIONS OF THE FINDINGS We show that UtMVECs can be used reliably to investigate how growth factors, hormones, lipids and other factors, such as flow, affect angiogenesis in the uterus. STUDY FUNDING/COMPETING INTERESTS This work was supported by NIH award HL095786 to K.J.B. The authors have no conflicts of interest.
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Affiliation(s)
- Camille L Duran
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, 440 Reynolds Medical Building, College Station, TX 77843-1114, USA.,Interdisciplinary Program in Genetics, Texas A&M University, Mail Stop 2128, College Station, TX 77843, USA
| | - Colette A Abbey
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, 440 Reynolds Medical Building, College Station, TX 77843-1114, USA
| | - Kayla J Bayless
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, 440 Reynolds Medical Building, College Station, TX 77843-1114, USA.,Interdisciplinary Program in Genetics, Texas A&M University, Mail Stop 2128, College Station, TX 77843, USA.,Interdisciplinary Faculty of Reproductive Biology, Texas A&M University, Mail Stop 2471, College Station, TX 77843, USA
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A cell surface display fluorescent biosensor for measuring MMP14 activity in real-time. Sci Rep 2018; 8:5916. [PMID: 29651043 PMCID: PMC5897415 DOI: 10.1038/s41598-018-24080-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 03/23/2018] [Indexed: 01/16/2023] Open
Abstract
Despite numerous recent advances in imaging technologies, one continuing challenge for cell biologists and microscopists is the visualization and measurement of endogenous proteins as they function within living cells. Achieving this goal will provide a tool that investigators can use to associate cellular outcomes with the behavior and activity of many well-studied target proteins. Here, we describe the development of a plasmid-based fluorescent biosensor engineered to measure the location and activity of matrix metalloprotease-14 (MMP14). The biosensor design uses fluorogen-activating protein technology coupled with a MMP14-selective protease sequence to generate a binary, “switch-on” fluorescence reporter capable of measuring MMP14 location, activity, and temporal dynamics. The MMP14-fluorogen activating protein biosensor approach is applicable to both short and long-term imaging modalities and contains an adaptable module that can be used to study many membrane-bound proteases. This MMP14 biosensor promises to serve as a tool for the advancement of a broad range of investigations targeting MMP14 activity during cell migration in health and disease.
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32
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Photoactivatable substrates for systematic study of the impact of an extracellular matrix ligand on appearance of leader cells in collective cell migration. Biomaterials 2018; 169:72-84. [PMID: 29655082 DOI: 10.1016/j.biomaterials.2018.03.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/25/2018] [Accepted: 03/26/2018] [Indexed: 11/24/2022]
Abstract
Epithelial cells migrate as multicellular units. The directionality and speed of these units are determined by actively moving leader cells. It is important to understand how external cues affect the appearance of these leader cells in physiological and pathological processes. However, the impact of extracellular matrices (ECMs) is still controversial, because physically-adsorbed ECM proteins are amenable to protein remodeling, and uncontrolled cluster geometry can vary migration phenotypes. Here, we demonstrate a photoactivatable substrate, which we used to study the impact of a cyclic Arg-Gly-Asp (cRGD) ligand on leader cell formation in MDCK cells. This robust platform allowed us to investigate the effect of cRGD density on leader cell formation, in any given cluster geometry, with minimized ECM remodeling. Our results show a biphasic response of leader cell appearance upon reducing the surface cRGD density. The increase, in leader cell appearance, within the higher density range, is not only associated with the weakening of circumferential actomyosin belts, but also reduction of cellular mechanical tension and intercellular junctional E-cadherin. These results indicate that cRGD-mediated cell-ECM interactions positively regulate mechanical and biochemical coupling within cell clusters; both are critical for the coordination of cell collectives and eventual reduction in the appearance of leader cells.
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Abstract
Cell migration is an adaptive process that depends on and responds to physical and molecular triggers. Moving cells sense and respond to tissue mechanics and induce transient or permanent tissue modifications, including extracellular matrix stiffening, compression and deformation, protein unfolding, proteolytic remodelling and jamming transitions. Here we discuss how the bi-directional relationship of cell-tissue interactions (mechanoreciprocity) allows cells to change position and contributes to single-cell and collective movement, structural and molecular tissue organization, and cell fate decisions.
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34
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Duran CL, Howell DW, Dave JM, Smith RL, Torrie ME, Essner JJ, Bayless KJ. Molecular Regulation of Sprouting Angiogenesis. Compr Physiol 2017; 8:153-235. [PMID: 29357127 DOI: 10.1002/cphy.c160048] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The term angiogenesis arose in the 18th century. Several studies over the next 100 years laid the groundwork for initial studies performed by the Folkman laboratory, which were at first met with some opposition. Once overcome, the angiogenesis field has flourished due to studies on tumor angiogenesis and various developmental models that can be genetically manipulated, including mice and zebrafish. In addition, new discoveries have been aided by the ability to isolate primary endothelial cells, which has allowed dissection of various steps within angiogenesis. This review will summarize the molecular events that control angiogenesis downstream of biochemical factors such as growth factors, cytokines, chemokines, hypoxia-inducible factors (HIFs), and lipids. These and other stimuli have been linked to regulation of junctional molecules and cell surface receptors. In addition, the contribution of cytoskeletal elements and regulatory proteins has revealed an intricate role for mobilization of actin, microtubules, and intermediate filaments in response to cues that activate the endothelium. Activating stimuli also affect various focal adhesion proteins, scaffold proteins, intracellular kinases, and second messengers. Finally, metalloproteinases, which facilitate matrix degradation and the formation of new blood vessels, are discussed, along with our knowledge of crosstalk between the various subclasses of these molecules throughout the text. Compr Physiol 8:153-235, 2018.
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Affiliation(s)
- Camille L Duran
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - David W Howell
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - Jui M Dave
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - Rebecca L Smith
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - Melanie E Torrie
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, Iowa, USA
| | - Jeffrey J Essner
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, Iowa, USA
| | - Kayla J Bayless
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
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35
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Botkjaer KA, Kwok HF, Terp MG, Karatt-Vellatt A, Santamaria S, McCafferty J, Andreasen PA, Itoh Y, Ditzel HJ, Murphy G. Development of a specific affinity-matured exosite inhibitor to MT1-MMP that efficiently inhibits tumor cell invasion in vitro and metastasis in vivo. Oncotarget 2017; 7:16773-92. [PMID: 26934448 PMCID: PMC4941350 DOI: 10.18632/oncotarget.7780] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 01/23/2016] [Indexed: 11/25/2022] Open
Abstract
The membrane-associated matrix metalloproteinase-14, MT1-MMP, has been implicated in pericellular proteolysis with an important role in cellular invasion of collagenous tissues. It is substantially upregulated in various cancers and rheumatoid arthritis, and has been considered as a potential therapeutic target. Here, we report the identification of antibody fragments to MT1-MMP that potently and specifically inhibit its cell surface functions. Lead antibody clones displayed inhibitory activity towards pro-MMP-2 activation, collagen-film degradation and gelatin-film degradation, and were shown to bind to the MT1-MMP catalytic domain outside the active site cleft, inhibiting binding to triple helical collagen. Affinity maturation using CDR3 randomization created a second generation of antibody fragments with dissociation constants down to 0.11 nM, corresponding to an improved affinity of 332-fold with the ability to interfere with cell-surface MT1-MMP functions, displaying IC50 values down to 5 nM. Importantly, the new inhibitors were able to inhibit collagen invasion by tumor-cells in vitro and in vivo primary tumor growth and metastasis of MDA-MB-231 cells in a mouse orthotopic xenograft model. Herein is the first demonstration that an inhibitory antibody targeting sites outside the catalytic cleft of MT1-MMP can effectively abrogate its in vivo activity during tumorigenesis and metastasis.
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Affiliation(s)
- Kenneth A Botkjaer
- Department of Oncology, University of Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, U.K
| | - Hang Fai Kwok
- Department of Oncology, University of Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, U.K.,Faculty of Health Sciences, University of Macau, Taipa, Macau SAR
| | - Mikkel G Terp
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | | | - Salvatore Santamaria
- Kennedy Institute of Rheumatology, University of Oxford, Headington, Oxford, U.K
| | | | - Peter A Andreasen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark.,Danish-Chinese Centre for Proteases and Cancer, Aarhus University, Aarhus, Denmark
| | - Yoshifumi Itoh
- Kennedy Institute of Rheumatology, University of Oxford, Headington, Oxford, U.K
| | - Henrik J Ditzel
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.,Department of Oncology, Odense University Hospital, Odense, Denmark
| | - Gillian Murphy
- Department of Oncology, University of Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, U.K
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36
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Suzuki T, Minerva D, Nishiyama K, Koshikawa N, Chaplain MAJ. Study on the tumor-induced angiogenesis using mathematical models. Cancer Sci 2017; 109:15-23. [PMID: 28892582 PMCID: PMC5765301 DOI: 10.1111/cas.13395] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 08/29/2017] [Accepted: 09/06/2017] [Indexed: 12/01/2022] Open
Abstract
We studied angiogenesis using mathematical models describing the dynamics of tip cells. We reviewed the basic ideas of angiogenesis models and its numerical simulation technique to produce realistic computer graphics images of sprouting angiogenesis. We examined the classical model of Anderson-Chaplain using fundamental concepts of mass transport and chemical reaction with ECM degradation included. We then constructed two types of numerical schemes, model-faithful and model-driven ones, where new techniques of numerical simulation are introduced, such as transient probability, particle velocity, and Boolean variables.
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Affiliation(s)
- Takashi Suzuki
- Center for Mathematical Modeling and Data Science, Osaka University, Osaka, Japan
| | - Dhisa Minerva
- Center for Mathematical Modeling and Data Science, Osaka University, Osaka, Japan
| | - Koichi Nishiyama
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Naohiko Koshikawa
- Division of Cancer Cell Research, Kanagawa Cancer Center Research Institute, Yokohama, Japan
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37
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Koshikawa N, Minegishi T, Kiyokawa H, Seiki M. Specific detection of soluble EphA2 fragments in blood as a new biomarker for pancreatic cancer. Cell Death Dis 2017; 8:e3134. [PMID: 29072678 PMCID: PMC5680914 DOI: 10.1038/cddis.2017.545] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/08/2017] [Accepted: 09/13/2017] [Indexed: 12/23/2022]
Abstract
Because membrane type 1-matrix metalloproteinase 1 (MT1-MMP) and erythropoietin-producing hepatocellular receptor 2 (EphA2) expression are upregulated by the Ras/mitogen-activated protein kinase pathway, they are frequently coexpressed in malignant tumors. MT1-MMP cleaves the N-terminal ligand-binding domain of EphA2 and inactivates its ligand-dependent tumor-suppressing activity. Therefore, specific detection of the cleaved N-terminal EphA2 fragment in blood might be an effective biomarker to diagnose malignant tumors. To evaluate this possibility, we developed three monoclonal antibodies against the soluble EphA2 fragment. One of them recognized this fragment specifically, with negligible cross-reactivity to the intact form. We used the cleaved form-specific antibody to develop a quantitative enzyme-linked immunosorbent assay and confirmed the linear reactivity to the recombinant fragment. We applied this assay on commercially available serum specimens obtained from patients with several types of cancer including gastric, pancreatic, esophageal, gastroesophageal, and head-and-neck cancers, and healthy donors. Soluble EphA2 fragment levels in cancer-patient sera were higher than those in healthy donors (n=50). In particular, levels of eight out of nine (89%) pancreatic cancer patients and ten out of seventeen (59%) gastric cancer patients significantly exceeded cutoff values obtained from the healthy donors, whereas those of esophageal and head-and-neck cancer-patient sera were low. The preliminary receiver operating characteristic curve analysis for pancreatic cancer demonstrated that the sensitivity and specificity were 89.0% and 90.0%, respectively, whereas those of the conventional digestive tumor marker CA19-9 were 88.9% and 72.0%, respectively. These results indicated that specific detection of soluble EphA2 fragment levels in serum could be potentially useful as a biomarker to diagnose pancreatic cancer.
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Affiliation(s)
- Naohiko Koshikawa
- Division of Cancer Cell Research, Kanagawa Cancer Center Research Institute, Yokohama, Japan.,Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Tomoko Minegishi
- Division of Cancer Cell Research, Kanagawa Cancer Center Research Institute, Yokohama, Japan.,Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Hirofumi Kiyokawa
- Division of Cancer Cell Research, Kanagawa Cancer Center Research Institute, Yokohama, Japan.,Division of Gastroenterology and Hepatology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Motoharu Seiki
- Division of Cancer Cell Research, Institute of Medical Science, University of Tokyo, Tokyo, Japan.,Faculty of Medicine, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kanazawa, Japan
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38
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Barnes RH, Akama T, Öhman MK, Woo MS, Bahr J, Weiss SJ, Eitzman DT, Chun TH. Membrane-Tethered Metalloproteinase Expressed by Vascular Smooth Muscle Cells Limits the Progression of Proliferative Atherosclerotic Lesions. J Am Heart Assoc 2017; 6:e003693. [PMID: 28735290 PMCID: PMC5586255 DOI: 10.1161/jaha.116.003693] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 06/08/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND The MMP (matrix metalloproteinase) family plays diverse and critical roles in directing vascular wall remodeling in atherosclerosis. Unlike secreted-type MMPs, a member of the membrane-type MMP family, MT1-MMP (membrane-type 1 MMP; MMP14), mediates pericellular extracellular matrix degradation that is indispensable for maintaining physiological extracellular matrix homeostasis. However, given the premature mortality exhibited by MT1-MMP-null mice, the potential role of the proteinase in atherogenesis remains elusive. We sought to determine the effects of both MT1-MMP heterozygosity and tissue-specific gene targeting on atherogenesis in APOE (apolipoprotein E)-null mice. METHODS AND RESULTS MT1-MMP heterozygosity in the APOE-null background (Mmp14+/-Apoe-/- ) significantly promoted atherogenesis relative to Mmp14+/+Apoe-/- mice. Furthermore, the tissue-specific deletion of MT1-MMP from vascular smooth muscle cells (VSMCs) in SM22α-Cre(+)Mmp14F/FApoe-/- (VSMC-knockout) mice likewise increased the severity of atherosclerotic lesions. Although VSMC-knockout mice also developed progressive atherosclerotic aneurysms in their iliac arteries, macrophage- and adipose-specific MT1-MMP-knockout mice did not display this sensitized phenotype. In VSMC-knockout mice, atherosclerotic lesions were populated by hyperproliferating VSMCs (smooth muscle actin- and Ki67-double-positive cells) that were characterized by a proinflammatory gene expression profile. Finally, MT1-MMP-null VSMCs cultured in a 3-dimensional spheroid model system designed to mimic in vivo-like cell-cell and cell-extracellular matrix interactions, likewise displayed markedly increased proliferative potential. CONCLUSIONS MT1-MMP expressed by VSMCs plays a key role in limiting the progression of atherosclerosis in APOE-null mice by regulating proliferative responses and inhibiting the deterioration of VSMC function in atherogenic vascular walls.
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MESH Headings
- Animals
- Aorta/enzymology
- Aorta/pathology
- Aortic Diseases/enzymology
- Aortic Diseases/genetics
- Aortic Diseases/pathology
- Atherosclerosis/enzymology
- Atherosclerosis/genetics
- Atherosclerosis/pathology
- Cell Communication
- Cell Proliferation
- Cell-Matrix Junctions/enzymology
- Cell-Matrix Junctions/pathology
- Cells, Cultured
- Disease Models, Animal
- Female
- Genetic Predisposition to Disease
- Heterozygote
- Iliac Artery/enzymology
- Iliac Artery/pathology
- Inflammation Mediators/metabolism
- Male
- Matrix Metalloproteinase 14/deficiency
- Matrix Metalloproteinase 14/genetics
- Matrix Metalloproteinase 14/metabolism
- Mice, Inbred C57BL
- Mice, Knockout, ApoE
- Muscle, Smooth, Vascular/enzymology
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/enzymology
- Myocytes, Smooth Muscle/pathology
- Phenotype
- Plaque, Atherosclerotic
- Signal Transduction
- Vascular Remodeling
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Affiliation(s)
- Richard H Barnes
- Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI
| | - Takeshi Akama
- Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI
| | - Miina K Öhman
- Department of Internal Medicine, Cardiovascular Research Center, University of Michigan, Ann Arbor, MI
| | - Moon-Sook Woo
- Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI
| | - Julian Bahr
- Life Sciences Institute, University of Michigan, Ann Arbor, MI
| | - Stephen J Weiss
- Life Sciences Institute, University of Michigan, Ann Arbor, MI
| | - Daniel T Eitzman
- Department of Internal Medicine, Cardiovascular Research Center, University of Michigan, Ann Arbor, MI
| | - Tae-Hwa Chun
- Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI
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Han KY, Chang JH, Lee H, Azar DT. Proangiogenic Interactions of Vascular Endothelial MMP14 With VEGF Receptor 1 in VEGFA-Mediated Corneal Angiogenesis. Invest Ophthalmol Vis Sci 2017; 57:3313-22. [PMID: 27327585 PMCID: PMC5993529 DOI: 10.1167/iovs.16-19420] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Purpose Matrix metalloproteinase 14 (MMP14) has been shown to be required for corneal angiogenesis. We hypothesized that the proangiogenic activity of MMP14 may be based on its selective binding to, and cleaving of, vascular endothelial growth factor receptor 1 (VEGFR1), but not VEGFR2 or VEGFR3. Methods Recombinant human (rh)VEGFR1, R2, and R3 were incubated with human MMP14, and the reaction mixtures were analyzed by SDS-PAGE and Coomassie blue staining. Surface plasmon resonance was used to determine the equilibrium constants (KD) for binding between MMP14 and VEGFA versus rhVEGFR1, R2, and R3. Extracellular signal-regulated kinase (ERK) phosphorylation was assayed in vascular endothelial cells after incubation with VEGF and various concentrations of MMP14. Ex vivo aortic ring tube formation assays and VEGFA micropocket corneal neovascularization assays were performed using Flk1Cre/Flk1mCherry/MMP14lox and Flk1mCherry/MMP14lox control mice. Results Maxtrix metalloproteinase 14 increased VEGFA-induced ERK phosphorylation in a time- and concentration-dependent manner in vascular endothelial cells. Aortic ring assays showed diminished vessel sprouting in vitro in response to VEGFA, but not to basic fibroblast growth factor, in mice with conditional deletion of vascular MMP14 (Flk1creMMP14lox) compared with that in MMP14lox control mice. In addition, diminished VEGFA-induced corneal angiogenesis was seen in flk1creMMP14lox mice compared with MMP14lox mice in vivo. Conclusions Our findings indicate that VEGFR1 interaction with MMP14 and the enzymatic activity of MMP14 are necessary for VEGFA-induced angiogenesis. Additionally, selective cleavage of VEGFR1 by MMP14 may play an important role in VEGFA-induced corneal angiogenesis.
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Affiliation(s)
- Kyu-Yeon Han
- Department of Ophthalmology and Visual Sciences Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States
| | - Jin-Hong Chang
- Department of Ophthalmology and Visual Sciences Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States
| | - Hyun Lee
- Center for Pharmaceutical Biotechnology and Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, Illinois, United States
| | - Dimitri T Azar
- Department of Ophthalmology and Visual Sciences Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States
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40
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Turunen SP, Tatti-Bugaeva O, Lehti K. Membrane-type matrix metalloproteases as diverse effectors of cancer progression. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:1974-1988. [PMID: 28390905 DOI: 10.1016/j.bbamcr.2017.04.002] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 04/02/2017] [Accepted: 04/03/2017] [Indexed: 12/12/2022]
Abstract
Membrane-type matrix metalloproteases (MT-MMP) are pivotal regulators of cell invasion, growth and survival. Tethered to the cell membranes by a transmembrane domain or GPI-anchor, the six MT-MMPs can exert these functions via cell surface-associated extracellular matrix degradation or proteolytic protein processing, including shedding or release of signaling receptors, adhesion molecules, growth factors and other pericellular proteins. By interactions with signaling scaffold or cytoskeleton, the C-terminal cytoplasmic tail of the transmembrane MT-MMPs further extends their functionality to signaling or structural relay. MT-MMPs are differentially expressed in cancer. The most extensively studied MMP14/MT1-MMP is induced in various cancers along malignant transformation via pathways activated by mutations in tumor suppressors or proto-oncogenes and changes in tumor microenvironment including cellular heterogeneity, extracellular matrix composition, tissue oxygenation, and inflammation. Classically such induction involves transcriptional programs related to epithelial-to-mesenchymal transition. Besides inhibition by endogenous tissue inhibitors, MT-MMP activities are spatially and timely regulated at multiple levels by microtubular vesicular trafficking, dimerization/oligomerization, other interactions and localization in the actin-based invadosomes, in both tumor and the stroma. The functions of MT-MMPs are multifaceted within reciprocal cellular responses in the evolving tumor microenvironment, which poses the importance of these proteases beyond the central function as matrix scissors, and necessitates us to rethink MT-MMPs as dynamic signaling proteases of cancer. This article is part of a Special Issue entitled: Matrix Metalloproteinases edited by Rafael Fridman.
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Affiliation(s)
- S Pauliina Turunen
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Nobels väg 16, SE-17177 Stockholm, Sweden
| | - Olga Tatti-Bugaeva
- Research Programs Unit, Genome-Scale Biology and Haartman Institute, University of Helsinki, and Helsinki University Hospital, P.O. Box 63, FI-00014 Helsinki, Finland
| | - Kaisa Lehti
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Nobels väg 16, SE-17177 Stockholm, Sweden; Research Programs Unit, Genome-Scale Biology and Haartman Institute, University of Helsinki, and Helsinki University Hospital, P.O. Box 63, FI-00014 Helsinki, Finland; K. Albin Johansson Foundation, Finnish Cancer Institute, P.O. Box 63, FI-00014, Helsinki, Finland.
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41
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Camaré C, Pucelle M, Nègre-Salvayre A, Salvayre R. Angiogenesis in the atherosclerotic plaque. Redox Biol 2017; 12:18-34. [PMID: 28212521 PMCID: PMC5312547 DOI: 10.1016/j.redox.2017.01.007] [Citation(s) in RCA: 264] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/04/2017] [Accepted: 01/05/2017] [Indexed: 12/12/2022] Open
Abstract
Atherosclerosis is a multifocal alteration of the vascular wall of medium and large arteries characterized by a local accumulation of cholesterol and non-resolving inflammation. Atherothrombotic complications are the leading cause of disability and mortality in western countries. Neovascularization in atherosclerotic lesions plays a major role in plaque growth and instability. The angiogenic process is mediated by classical angiogenic factors and by additional factors specific to atherosclerotic angiogenesis. In addition to its role in plaque progression, neovascularization may take part in plaque destabilization and thromboembolic events. Anti-angiogenic agents are effective to reduce atherosclerosis progression in various animal models. However, clinical trials with anti-angiogenic drugs, mainly anti-VEGF/VEGFR, used in anti-cancer therapy show cardiovascular adverse effects, and require additional investigations.
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Affiliation(s)
- Caroline Camaré
- INSERM - I2MC, U-1048, 1 avenue Jean Poulhès, BP 84225, 31432 Toulouse cedex 4, France; Université Paul Sabatier Toulouse III, Faculty of Medicine, Biochemistry Departement, Toulouse, France; CHU Toulouse, Rangueil, 1 avenue Jean Poulhès, TSA 50032, 31059 Toulouse Cedex 9, France
| | - Mélanie Pucelle
- INSERM - I2MC, U-1048, 1 avenue Jean Poulhès, BP 84225, 31432 Toulouse cedex 4, France
| | - Anne Nègre-Salvayre
- INSERM - I2MC, U-1048, 1 avenue Jean Poulhès, BP 84225, 31432 Toulouse cedex 4, France.
| | - Robert Salvayre
- INSERM - I2MC, U-1048, 1 avenue Jean Poulhès, BP 84225, 31432 Toulouse cedex 4, France; Université Paul Sabatier Toulouse III, Faculty of Medicine, Biochemistry Departement, Toulouse, France; CHU Toulouse, Rangueil, 1 avenue Jean Poulhès, TSA 50032, 31059 Toulouse Cedex 9, France.
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Antalis TM, Conway GD, Peroutka RJ, Buzza MS. Membrane-anchored proteases in endothelial cell biology. Curr Opin Hematol 2016; 23:243-52. [PMID: 26906027 DOI: 10.1097/moh.0000000000000238] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
PURPOSE OF REVIEW The endothelial cell plasma membrane is a metabolically active, dynamic, and fluid microenvironment where pericellular proteolysis plays a critical role. Membrane-anchored proteases may be expressed by endothelial cells as well as mural cells and leukocytes with distribution both inside and outside of the vascular system. Here, we will review the recent advances in our understanding of the direct and indirect roles of membrane-anchored proteases in vascular biology and the possible conservation of their extravascular functions in endothelial cell biology. RECENT FINDINGS Membrane-anchored proteases belonging to the serine or metalloprotease families contain amino-terminal or carboxy-terminal domains, which serve to tether their extracellular protease domains directly at the plasma membrane. This architecture enables protease function and substrate repertoire to be regulated through dynamic localization in distinct areas of the cell membrane. These proteases are proving to be key components of the cell machinery for regulating vascular permeability, generation of vasoactive peptides, receptor tyrosine kinase transactivation, extracellular matrix proteolysis, and angiogenesis. SUMMARY A complex picture of the interdependence between membrane-anchored protease localization and function is emerging that may provide a mechanism for precise coordination of extracellular signals and intracellular responses through communication with the cytoskeleton and with cellular signaling molecules.
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Affiliation(s)
- Toni M Antalis
- Center for Vascular and Inflammatory Diseases and the Department of Physiology, University of Maryland School of Medicine, Baltimore, Maryland, USA
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43
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Mazurek R, Dave JM, Chandran RR, Misra A, Sheikh AQ, Greif DM. Vascular Cells in Blood Vessel Wall Development and Disease. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2016; 78:323-350. [PMID: 28212800 DOI: 10.1016/bs.apha.2016.08.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The vessel wall is composed of distinct cellular layers, yet communication among individual cells within and between layers results in a dynamic and versatile structure. The morphogenesis of the normal vascular wall involves a highly regulated process of cell proliferation, migration, and differentiation. The use of modern developmental biological and genetic approaches has markedly enriched our understanding of the molecular and cellular mechanisms underlying these developmental events. Additionally, the application of similar approaches to study diverse vascular diseases has resulted in paradigm-shifting insights into pathogenesis. Further investigations into the biology of vascular cells in development and disease promise to have major ramifications on therapeutic strategies to combat pathologies of the vasculature.
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Affiliation(s)
- R Mazurek
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, United States
| | - J M Dave
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, United States
| | - R R Chandran
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, United States
| | - A Misra
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, United States
| | - A Q Sheikh
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, United States
| | - D M Greif
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, United States.
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44
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VEGF-A/Notch-Induced Podosomes Proteolyse Basement Membrane Collagen-IV during Retinal Sprouting Angiogenesis. Cell Rep 2016; 17:484-500. [DOI: 10.1016/j.celrep.2016.09.016] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 07/23/2016] [Accepted: 09/03/2016] [Indexed: 11/21/2022] Open
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Bazou D, Ng MR, Song JW, Chin SM, Maimon N, Munn LL. Flow-induced HDAC1 phosphorylation and nuclear export in angiogenic sprouting. Sci Rep 2016; 6:34046. [PMID: 27669993 PMCID: PMC5037418 DOI: 10.1038/srep34046] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 08/17/2016] [Indexed: 01/02/2023] Open
Abstract
Angiogenesis requires the coordinated growth and migration of endothelial cells (ECs), with each EC residing in the vessel wall integrating local signals to determine whether to remain quiescent or undergo morphogenesis. These signals include vascular endothelial growth factor (VEGF) and flow-induced mechanical stimuli such as interstitial flow, which are both elevated in the tumor microenvironment. However, it is not clear how VEGF signaling and mechanobiological activation due to interstitial flow cooperate during angiogenesis. Here, we show that endothelial morphogenesis is histone deacetylase-1- (HDAC1) dependent and that interstitial flow increases the phosphorylation of HDAC1, its activity, and its export from the nucleus. Furthermore, we show that HDAC1 inhibition decreases endothelial morphogenesis and matrix metalloproteinase-14 (MMP14) expression. Our results suggest that HDAC1 modulates angiogenesis in response to flow, providing a new target for modulating vascularization in the clinic.
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Affiliation(s)
- Despina Bazou
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
| | - Mei Rosa Ng
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
| | - Jonathan W Song
- Department of Mechanical and Aerospace Engineering, Ohio State University, E406 201 W. 19th Avenue, Columbus, OH 43210, USA
| | - Shan Min Chin
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
| | - Nir Maimon
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
| | - Lance L Munn
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
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46
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Feinberg TY, Rowe RG, Saunders TL, Weiss SJ. Functional roles of MMP14 and MMP15 in early postnatal mammary gland development. Development 2016; 143:3956-3968. [PMID: 27633994 DOI: 10.1242/dev.136259] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 09/05/2016] [Indexed: 12/17/2022]
Abstract
During late embryogenesis, mammary epithelial cells initiate migration programs that drive ductal invasion into the surrounding adipose-rich mesenchyme. Currently, branching morphogenesis is thought to depend on the mobilization of the membrane-anchored matrix metalloproteinases MMP14 (MT1-MMP) and MMP15 (MT2-MMP), which drive epithelial cell invasion by remodeling the extracellular matrix and triggering associated signaling cascades. However, the roles that these proteinases play during mammary gland development in vivo remain undefined. Here, we characterize the impact of global Mmp14 and Mmp15 targeting on early postnatal mammary gland development in mice. Unexpectedly, both Mmp14-/- and Mmp15-/- mammary glands retain the ability to generate intact ductal networks. Although neither proteinase is required for branching morphogenesis, transcriptome profiling reveals a key role for MMP14 and MMP15 in regulating mammary gland adipocyte differentiation. Whereas MMP14 promotes the generation of white fat depots crucial for energy storage, MMP15 differentially controls the formation of thermogenic brown fat. Taken together, these data not only indicate that current paradigms relevant to proteinase-dependent morphogenesis need be revisited, but also identify new roles for the enzymes in regulating adipocyte fate determination in the developing mammary gland.
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Affiliation(s)
- Tamar Y Feinberg
- Division of Molecular Medicine and Genetics, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.,Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA.,Cellular and Molecular Biology Graduate Program, University of Michigan, Ann Arbor, MI 48109, USA
| | - R Grant Rowe
- Division of Molecular Medicine and Genetics, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Thomas L Saunders
- Division of Molecular Medicine and Genetics, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.,Transgenic Animal Model Core, Biomedical Research Core Facilities, University of Michigan, Ann Arbor, MI 48109, USA
| | - Stephen J Weiss
- Division of Molecular Medicine and Genetics, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA .,Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA.,Cellular and Molecular Biology Graduate Program, University of Michigan, Ann Arbor, MI 48109, USA
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47
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Thakur V, Bedogni B. The membrane tethered matrix metalloproteinase MT1-MMP at the forefront of melanoma cell invasion and metastasis. Pharmacol Res 2016; 111:17-22. [DOI: 10.1016/j.phrs.2016.05.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Revised: 05/13/2016] [Accepted: 05/17/2016] [Indexed: 01/18/2023]
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48
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Wu J, Su W, Powner MB, Liu J, Copland DA, Fruttiger M, Madeddu P, Dick AD, Liu L. Pleiotropic action of CpG-ODN on endothelium and macrophages attenuates angiogenesis through distinct pathways. Sci Rep 2016; 6:31873. [PMID: 27558877 PMCID: PMC4997267 DOI: 10.1038/srep31873] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 07/26/2016] [Indexed: 12/22/2022] Open
Abstract
There is an integral relationship between vascular cells and leukocytes in supporting healthy tissue homeostasis. Furthermore, activation of these two cellular components is key for tissue repair following injury. Toll-like receptors (TLRs) play a role in innate immunity defending the organism against infection, but their contribution to angiogenesis remains unclear. Here we used synthetic TLR9 agonists, cytosine-phosphate-guanosine oligodeoxynucleotides (CpG-ODN), to investigate the role of TLR9 in vascular pathophysiology and identify potential therapeutic translation. We demonstrate that CpG-ODN stimulates inflammation yet inhibits angiogenesis. Regulation of angiogenesis by CpG-ODN is pervasive and tissue non-specific. Further, we noted that synthetic CpG-ODN requires backbone phosphorothioate but not TLR9 activation to render and maintain endothelial stalk cells quiescent. CpG-ODN pre-treated endothelial cells enhance macrophage migration but restrain pericyte mobilisation. CpG-ODN attenuation of angiogenesis, however, remains TLR9-dependent, as inhibition is lost in TLR9 deficient mice. Additionally, CpG-ODNs induce an M1 macrophage phenotype that restricts angiogenesis. The effects mediated by CpG-ODNs can therefore modulate both endothelial cells and macrophages through distinct pathways, providing potential therapeutic application in ocular vascular disease.
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Affiliation(s)
- Jiahui Wu
- Academic Unit of Ophthalmology, School of Clinical Sciences, University of Bristol, UK
| | - Wenru Su
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangzhou, China
- Centre for Clinic Immunology, Sun Yat-sen University Third Affiliated Hospital, Guangzhou, China
| | - Michael B. Powner
- UCL-Institute of Ophthalmology, University College London, London, UK
| | - Jian Liu
- Academic Unit of Ophthalmology, School of Clinical Sciences, University of Bristol, UK
| | - David A. Copland
- Academic Unit of Ophthalmology, School of Clinical Sciences, University of Bristol, UK
| | - Marcus Fruttiger
- UCL-Institute of Ophthalmology, University College London, London, UK
| | - Paolo Madeddu
- Bristol Heart Institute, School of Clinical Sciences, University of Bristol, UK
| | - Andrew D. Dick
- Academic Unit of Ophthalmology, School of Clinical Sciences, University of Bristol, UK
- UCL-Institute of Ophthalmology, University College London, London, UK
- National Institute for Health Research (NIHR) Biomedical Research Centre, Moorfields Eye Hospital, London, UK.
| | - Lei Liu
- Academic Unit of Ophthalmology, School of Clinical Sciences, University of Bristol, UK
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49
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Mori H, Bhat R, Bruni-Cardoso A, Chen EI, Jorgens DM, Coutinho K, Louie K, Bowen BB, Inman JL, Tecca V, Lee SJ, Becker-Weimann S, Northen T, Seiki M, Borowsky AD, Auer M, Bissell MJ. New insight into the role of MMP14 in metabolic balance. PeerJ 2016; 4:e2142. [PMID: 27478693 PMCID: PMC4950575 DOI: 10.7717/peerj.2142] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Accepted: 05/25/2016] [Indexed: 12/16/2022] Open
Abstract
Membrane-anchored matrix metalloproteinase 14 (MMP14) is involved broadly in organ development through both its proteolytic and signal-transducing functions. Knockout of Mmp14 (KO) in mice results in a dramatic reduction of body size and wasting followed by premature death, the mechanism of which is poorly understood. Since the mammary gland develops after birth and is thus dependent for its functional progression on systemic and local cues, we chose it as an organ model for understanding why KO mice fail to thrive. A global analysis of the mammary glands' proteome in the wild type (WT) and KO mice provided insight into an unexpected role of MMP14 in maintaining metabolism and homeostasis. We performed mass spectrometry and quantitative proteomics to determine the protein signatures of mammary glands from 7 to 11 days old WT and KO mice and found that KO rudiments had a significantly higher level of rate-limiting enzymes involved in catabolic pathways. Glycogen and lipid levels in KO rudiments were reduced, and the circulating levels of triglycerides and glucose were lower. Analysis of the ultrastructure of mammary glands imaged by electron microscopy revealed a significant increase in autophagy signatures in KO mice. Finally, Mmp14 silenced mammary epithelial cells displayed enhanced autophagy. Applied to a systemic level, these findings indicate that MMP14 is a crucial regulator of tissue homeostasis. If operative on a systemic level, these findings could explain how Mmp14KO litter fail to thrive due to disorder in metabolism.
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Affiliation(s)
- Hidetoshi Mori
- Department of Pathology, Center for Comparative Medicine, University of California,Davis,CA,USA; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory,Berkeley,CA,USA
| | - Ramray Bhat
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory,Berkeley,CA,USA; Calcutta Medical College, University of Calcutta, Calcutta, India
| | - Alexandre Bruni-Cardoso
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory,Berkeley,CA,USA; Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo,São Paulo,Brazil
| | - Emily I Chen
- Department of Pharmacology, Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center , New York , NY , USA
| | - Danielle M Jorgens
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Kester Coutinho
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Katherine Louie
- Environmental Genomics and Systems Biology, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Benjamin Ben Bowen
- Environmental Genomics and Systems Biology, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Jamie L Inman
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Victoria Tecca
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Sarah J Lee
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Sabine Becker-Weimann
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Trent Northen
- Environmental Genomics and Systems Biology, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Motoharu Seiki
- Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Alexander D Borowsky
- Department of Pathology, Center for Comparative Medicine, University of California, Davis, CA, USA
| | - Manfred Auer
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Mina J Bissell
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
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50
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Transcription factor KLF6 upregulates expression of metalloprotease MMP14 and subsequent release of soluble endoglin during vascular injury. Angiogenesis 2016; 19:155-71. [PMID: 26850053 PMCID: PMC4819519 DOI: 10.1007/s10456-016-9495-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 01/23/2016] [Indexed: 12/31/2022]
Abstract
After endothelial injury, the transcription factor Krüppel-like factor 6 (KLF6) translocates into the cell nucleus to regulate a variety of target genes involved in angiogenesis, vascular repair and remodeling, including components of the membrane transforming growth factor beta (TGF-β) receptor complex such as endoglin and activin receptor-like kinase 1. The membrane metalloproteinase 14 (MMP14 or MT1-MMP) targets endoglin to release soluble endoglin and is involved in vascular inflammation and endothelial tubulogenesis. However, little is known about the regulation of MMP14 expression during vascular wounding. In vitro denudation of monolayers of human endothelial cell monolayers leads to an increase in the KLF6 gene transcriptional rate, followed by an upregulation of MMP14 and release of soluble endoglin. Concomitant with this process, MMP14 co-localizes with endoglin in the sprouting endothelial cells surrounding the wound border. MMP14 expression at mRNA and protein levels is increased by ectopic KLF6 and downregulated by KLF6 suppression in cultured endothelial cells. Moreover, after wire-induced endothelial denudation, Klf6+/− mice show lower levels of MMP14 in their vasculature compared with their wild-type siblings. Ectopic cellular expression of KLF6 results in an increased transcription rate of MMP14, and chromatin immunoprecipitation assays show that KLF6 interacts with MMP14 promoter in ECs, this interaction being enhanced during wound healing. Furthermore, KLF6 markedly increases the transcriptional activity of different reporter constructs of MMP14 gene promoter. These results suggest that KLF6 regulates MMP14 transcription and is a critical player of the gene expression network triggered during endothelial repair.
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