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Min H, Xu L, Parrott R, Overall C, Lillich M, Meadows N, Fernandez-Castaneda A, Gaultier A, Kurtzberg J, Filiano A. Cord Blood Connect: The International Congress for Cord Blood and Perinatal Tissue Research 2020. Stem Cells Transl Med 2021; 9 Suppl 1:S2-S18. [PMID: 32902912 DOI: 10.1002/sctm.12807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Hyunjung Min
- Marcus Center for Cellular Cures, Duke University, Durham, North Carolina, USA.,Department of Neurosurgery, Duke University, Durham, North Carolina, USA
| | - Li Xu
- Marcus Center for Cellular Cures, Duke University, Durham, North Carolina, USA
| | - Roberta Parrott
- Marcus Center for Cellular Cures, Duke University, Durham, North Carolina, USA
| | - Christopher Overall
- Department of Neuroscience, Center for Brain Immunology and Glia, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Melina Lillich
- Marcus Center for Cellular Cures, Duke University, Durham, North Carolina, USA
| | - Norin Meadows
- Marcus Center for Cellular Cures, Duke University, Durham, North Carolina, USA
| | - Anthony Fernandez-Castaneda
- Department of Neuroscience, Center for Brain Immunology and Glia, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Alban Gaultier
- Department of Neuroscience, Center for Brain Immunology and Glia, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Joanne Kurtzberg
- Marcus Center for Cellular Cures, Duke University, Durham, North Carolina, USA.,Department of Pediatrics, Duke University, Durham, North Carolina, USA
| | - Anthony Filiano
- Marcus Center for Cellular Cures, Duke University, Durham, North Carolina, USA.,Department of Neurosurgery, Duke University, Durham, North Carolina, USA.,Department of Immunology, Duke University, Durham, North Carolina, USA.,Department of Pathology, Duke University, Durham, North Carolina, USA
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2
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McDermott JE, Cort JR, Nakayasu ES, Pruneda JN, Overall C, Adkins JN. Prediction of bacterial E3 ubiquitin ligase effectors using reduced amino acid peptide fingerprinting. PeerJ 2019; 7:e7055. [PMID: 31211016 PMCID: PMC6557245 DOI: 10.7717/peerj.7055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 05/02/2019] [Indexed: 11/20/2022] Open
Abstract
Background Although pathogenic Gram-negative bacteria lack their own ubiquitination machinery, they have evolved or acquired virulence effectors that can manipulate the host ubiquitination process through structural and/or functional mimicry of host machinery. Many such effectors have been identified in a wide variety of bacterial pathogens that share little sequence similarity amongst themselves or with eukaryotic ubiquitin E3 ligases. Methods To allow identification of novel bacterial E3 ubiquitin ligase effectors from protein sequences we have developed a machine learning approach, the SVM-based Identification and Evaluation of Virulence Effector Ubiquitin ligases (SIEVE-Ub). We extend the string kernel approach used previously to sequence classification by introducing reduced amino acid (RED) alphabet encoding for protein sequences. Results We found that 14mer peptides with amino acids represented as simply either hydrophobic or hydrophilic provided the best models for discrimination of E3 ligases from other effector proteins with a receiver-operator characteristic area under the curve (AUC) of 0.90. When considering a subset of E3 ubiquitin ligase effectors that do not fall into known sequence based families we found that the AUC was 0.82, demonstrating the effectiveness of our method at identifying novel functional family members. Feature selection was used to identify a parsimonious set of 10 RED peptides that provided good discrimination, and these peptides were found to be located in functionally important regions of the proteins involved in E2 and host target protein binding. Our general approach enables construction of models based on other effector functions. We used SIEVE-Ub to predict nine potential novel E3 ligases from a large set of bacterial genomes. SIEVE-Ub is available for download at https://doi.org/10.6084/m9.figshare.7766984.v1 or https://github.com/biodataganache/SIEVE-Ub for the most current version.
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Affiliation(s)
- Jason E McDermott
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, United States of America.,Department of Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, OR, United States of America
| | - John R Cort
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Ernesto S Nakayasu
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Jonathan N Pruneda
- Department of Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, OR, United States of America
| | - Christopher Overall
- Center for Brain Immunology and Glia, University of Virginia, Charlottesville, United States of America
| | - Joshua N Adkins
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, United States of America
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3
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Saha A, Xu L, Gunaratne A, Balber AE, Troy JD, Overall C, Filiano A, Kurtzberg J. Duoc-01, a Cord Blood Derived Cell Therapy Product, Ameliorates Experimental Autoimmune Encephalomyelitis. Biol Blood Marrow Transplant 2019. [DOI: 10.1016/j.bbmt.2018.12.466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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4
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O'Brien CA, Overall C, Konradt C, O'Hara Hall AC, Hayes NW, Wagage S, John B, Christian DA, Hunter CA, Harris TH. CD11c-Expressing Cells Affect Regulatory T Cell Behavior in the Meninges during Central Nervous System Infection. J Immunol 2017; 198:4054-4061. [PMID: 28389591 DOI: 10.4049/jimmunol.1601581] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 03/14/2017] [Indexed: 01/17/2023]
Abstract
Regulatory T cells (Tregs) play an important role in the CNS during multiple infections, as well as autoimmune inflammation, but the behavior of this cell type in the CNS has not been explored. In mice, infection with Toxoplasma gondii leads to a Th1-polarized parasite-specific effector T cell response in the brain. Similarly, Tregs in the CNS during T. gondii infection are Th1 polarized, as exemplified by their T-bet, CXCR3, and IFN-γ expression. Unlike effector CD4+ T cells, an MHC class II tetramer reagent specific for T. gondii did not recognize Tregs isolated from the CNS. Likewise, TCR sequencing revealed minimal overlap in TCR sequence between effector T cells and Tregs in the CNS. Whereas effector T cells are found in the brain parenchyma where parasites are present, Tregs were restricted to the meninges and perivascular spaces. The use of intravital imaging revealed that activated CD4+ T cells within the meninges were highly migratory, whereas Tregs moved more slowly and were found in close association with CD11c+ cells. To test whether the behavior of Tregs in the meninges is influenced by interactions with CD11c+ cells, mice were treated with anti-LFA-1 Abs to reduce the number of CD11c+ cells in this space. The anti-LFA-1 treatment led to fewer contacts between Tregs and the remaining CD11c+ cells and increased the speed of Treg migration. These data suggest that Tregs are anatomically restricted within the CNS, and their interaction with CD11c+ populations regulates their local behavior during T. gondii infection.
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Affiliation(s)
- Carleigh A O'Brien
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, VA 22908; and
| | - Christopher Overall
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, VA 22908; and
| | - Christoph Konradt
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Aisling C O'Hara Hall
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Nikolas W Hayes
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, VA 22908; and
| | - Sagie Wagage
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Beena John
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - David A Christian
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Christopher A Hunter
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Tajie H Harris
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, VA 22908; and
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5
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Mallia-Milanes B, Dufour A, Bailey H, Meakin G, Leme A, Bolton C, Shapiro S, Overall C, Johnson S. S129 A two species proteomics approach to determine MMP-12 substrates in COPD. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Morrison C, Mancini S, Cipollone J, Kappelhoff R, Roskelley C, Overall C. Microarray and proteomic analysis of breast cancer cell and osteoblast co-cultures: role of osteoblast matrix metalloproteinase (MMP)-13 in bone metastasis. J Biol Chem 2011; 286:34271-85. [PMID: 21784845 PMCID: PMC3190775 DOI: 10.1074/jbc.m111.222513] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 07/20/2011] [Indexed: 12/20/2022] Open
Abstract
Dynamic reciprocal interactions between a tumor and its microenvironment impact both the establishment and progression of metastases. These interactions are mediated, in part, through proteolytic sculpting of the microenvironment, particularly by the matrix metalloproteinases, with both tumors and stroma contributing to the proteolytic milieu. Because bone is one of the predominant sites of breast cancer metastases, we used a co-culture system in which a subpopulation of the highly invasive human breast cancer cell line MDA-MB-231, with increased propensity to metastasize to bone, was overlaid onto a monolayer of differentiated osteoblast MC3T3-E1 cells in a mineralized osteoid matrix. CLIP-CHIP® microarrays identified changes in the complete protease and inhibitor expression profile of the breast cancer and osteoblast cells that were induced upon co-culture. A large increase in osteoblast-derived MMP-13 mRNA and protein was observed. Affymetrix analysis and validation showed induction of MMP-13 was initiated by soluble factors produced by the breast tumor cells, including oncostatin M and the acute response apolipoprotein SAA3. Significant changes in the osteoblast secretomes upon addition of MMP-13 were identified by degradomics from which six novel MMP-13 substrates with the potential to functionally impact breast cancer metastasis to bone were identified and validated. These included inactivation of the chemokines CCL2 and CCL7, activation of platelet-derived growth factor-C, and cleavage of SAA3, osteoprotegerin, CutA, and antithrombin III. Hence, the influence of breast cancer metastases on the bone microenvironment that is executed via the induction of osteoblast MMP-13 with the potential to enhance metastases growth by generating a microenvironmental amplifying feedback loop is revealed.
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Affiliation(s)
- Charlotte Morrison
- From the Centre for Blood Research and
- Departments of Oral Biological and Medical Sciences
| | - Stephanie Mancini
- Cellular and Physiological Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Jane Cipollone
- Cellular and Physiological Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Reinhild Kappelhoff
- From the Centre for Blood Research and
- Departments of Oral Biological and Medical Sciences
| | - Calvin Roskelley
- Cellular and Physiological Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Christopher Overall
- From the Centre for Blood Research and
- Departments of Oral Biological and Medical Sciences
- Biochemistry and Molecular Biology, and
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7
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Lou Y, McDonald PC, Oloumi A, Chia S, Kyle A, dem Keller UA, Fotovati A, Gray V, Leung S, Huntsman D, Clarke B, Waterhouse D, Bally M, Roskelley C, Overall C, Minchinton A, Supuran CT, Dedhar S. Abstract 455: Hypoxia induced carbonic anhydrase IX is essential for the growth and metastasis of breast tumors. Cancer Res 2010. [DOI: 10.1158/1538-7445.am10-455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Metastasis of primary malignancies is a multi-step process and remains the principal cause of cancer deaths. Carbonic anhydrase IX (CAIX) is a hypoxia inducible protein and a poor prognostic marker for several types of cancer, including breast cancer. However, the functional role of CAIX in the metastatic progression of breast cancer is unclear. Here, we have investigated its role in the growth and metastasis of breast tumors. Orthotopic mouse mammary tumors derived from metastatic 4T1 and 66cl4 cells or non-metastatic 67NR cells were examined for levels of proliferation (BrdU), hypoxia, (pimonidazole), perfusion (DiOC7), vasculature (CD31), apoptosis (TUNEL) and lymphangiogenesis (LYVE-1). Metastatic 4T1 and 66cl4 tumors expressed a hypoxia gene signature and were characterized as being poorly vascularized, with high levels of hypoxia. Large numbers of apoptotic cells and well developed intratumoral lymphatic vessels were also evident. Inhibition of expression of CAIX in the metastatic 4T1 cells by stable expression of short hairpin RNA (shRNA) resulted in cell death and reversal of extracellular acidosis in hypoxia in vitro, dramatic regression of tumors in vivo, and inhibition of metastasis. These properties were rescued by constitutive expression of human CAIX. Treatment of mice harboring 4T1 tumors with a novel CAIX-specific inhibitor resulted in significant inhibition of tumor growth. Interrogation by immunohistochemistry of a large (3992 patient samples) primary breast tumor tissue microarray showed that CAIX expression was significantly associated with worse distant relapse free survival (p<10−16) and was most prominent in the basal breast cancers (51%). Our data show that CAIX-mediated function is required for the survival and metastasis of hypoxic breast tumors, and suggest that CAIX is a promising therapeutic target for metastatic breast cancer.
This work was supported by the Canadian Breast Cancer Research Alliance, with special funding from the Canadian Breast Cancer Foundation.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr 455.
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Affiliation(s)
- Yuanmei Lou
- 1British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Paul C. McDonald
- 1British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Arusha Oloumi
- 1British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Stephen Chia
- 2British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Alastair Kyle
- 1British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | | | - Abbas Fotovati
- 4Child and Family Research Institute, Vancouver, British Columbia, Canada
| | - Virginia Gray
- 1British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Samuel Leung
- 5Genetic Pathology Evaluation Centre, Vancouver, British Columbia, Canada
| | - David Huntsman
- 6Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada
| | - Blaise Clarke
- 5Genetic Pathology Evaluation Centre, Vancouver, British Columbia, Canada
| | - Dawn Waterhouse
- 1British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Marcel Bally
- 1British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Calvin Roskelley
- 3University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Andrew Minchinton
- 1British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | | | - Shoukat Dedhar
- 1British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
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8
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Cheung C, Marchant D, Walker EKY, Luo Z, Zhang J, Yanagawa B, Rahmani M, Cox J, Overall C, Senior RM, Luo H, McManus BM. Ablation of Matrix Metalloproteinase-9 Increases Severity of Viral Myocarditis in Mice. Circulation 2008; 117:1574-82. [DOI: 10.1161/circulationaha.107.733238] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background—
Coxsackievirus B3 (CVB3) causes human myocarditis, which can result in cardiac damage, maladaptive remodeling, and heart failure. Matrix metalloproteinases (MMP)-8 and -9 have been identified in virus-infected myocardium, but their particular roles and underlying mechanisms of effect are unknown. For the first time, we examine the severity of CVB3-induced myocarditis in MMP-8–and MMP-9–deficient mice.
Methods and Results—
CVB3-infected MMP-8 and MMP-9 knockout (KO) mice and corresponding wild-type (WT) mice were euthanized and harvested at 9 days after infection. Expression of MMP-2, -8, -12, and -13 and tissue inhibitors of MMPs was assessed by zymography or immunoblotting on harvested hearts, and in situ hybridization was performed to detect active infection. Infected MMP-9 KO mice had greater myocardial injury and foci of infection than WT mice despite similar pancreatic infection. Increased fibrosis (10.6±2.7% versus 7.1±2.6%,
P
=0.04), viral titer, as well as decreased cardiac output, were evident in MMP-9 KO compared with WT mice as assessed by picrosirius red staining, plaque assay, and echocardiography, respectively. Immune infiltration was also greatly increased in MMP-9 KO compared with WT mice (15.2±12.6% versus 2.0±3.0%,
P
<0.002). Myocardial interferon-β1, interferon-γ, interleukin-6, interleukin-10, and macrophage inflammatory protein-1α expression was elevated in MMP-9 KO mice as measured by quantitative real-time polymerase chain reaction and ELISA. In contrast, MMP-8 KO mice had the same degree of cardiac injury, fibrosis, and viral infection as their WT counterparts.
Conclusions—
During acute CVB3 infection, MMP-9 appears necessary to halt virus propagation in the heart, promote proper immune infiltration and remodeling, and preserve cardiac output.
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Affiliation(s)
- Caroline Cheung
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - David Marchant
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - Elizabeth K.-Y. Walker
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - Zongshu Luo
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - Jingchun Zhang
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - Bobby Yanagawa
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - Maziar Rahmani
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - Jennifer Cox
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - Christopher Overall
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - Robert M. Senior
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - Honglin Luo
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
| | - Bruce M. McManus
- From the Department of Pathology and Laboratory Medicine (C.C., D.M., E.K.-Y.W., Z.L., J.Z., B.Y., M.R., H.L., B.M.M.), The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul’s Hospital/Providence Health Care, and the Department of Oral Biological & Medical Sciences (J.C., C.O.), Centre for Blood Research, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada; and the Division of Pulmonary and Critical Care Medicine (R.M.S.),
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Wolf K, Wu YI, Liu Y, Geiger J, Tam E, Overall C, Stack MS, Friedl P. Multi-step pericellular proteolysis controls the transition from individual to collective cancer cell invasion. Nat Cell Biol 2007; 9:893-904. [PMID: 17618273 DOI: 10.1038/ncb1616] [Citation(s) in RCA: 704] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2007] [Accepted: 06/21/2007] [Indexed: 01/01/2023]
Abstract
Invasive cell migration through tissue barriers requires pericellular remodelling of extracellular matrix (ECM) executed by cell-surface proteases, particularly membrane-type-1 matrix metalloproteinase (MT1-MMP/MMP-14). Using time-resolved multimodal microscopy, we show how invasive HT-1080 fibrosarcoma and MDA-MB-231 breast cancer cells coordinate mechanotransduction and fibrillar collagen remodelling by segregating the anterior force-generating leading edge containing beta1 integrin, MT1-MMP and F-actin from a posterior proteolytic zone executing fibre breakdown. During forward movement, sterically impeding fibres are selectively realigned into microtracks of single-cell calibre. Microtracks become expanded by multiple following cells by means of the large-scale degradation of lateral ECM interfaces, ultimately prompting transition towards collective invasion similar to that in vivo. Both ECM track widening and transition to multicellular invasion are dependent on MT1-MMP-mediated collagenolysis, shown by broad-spectrum protease inhibition and RNA interference. Thus, invasive migration and proteolytic ECM remodelling are interdependent processes that control tissue micropatterning and macropatterning and, consequently, individual and collective cell migration.
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Affiliation(s)
- Katarina Wolf
- Rudolf Virchow Center, DFG Research Center for Experimental Biomedicine and Department of Dermatology, University of Würzburg, Josef-Schneider-Strasse 2, 97080 Würzburg, Germany
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10
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Overall C. ID: 370 CLIP-TAILS and CLIP-STEP: New Degradomic Techniques for the Discovery of Natural Substrates and Proteases in Complex Cell Proteomes. J Thromb Haemost 2006. [DOI: 10.1111/j.1538-7836.2006.00370.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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McCulloeh CAG, Birek P, Overall C, Aitken S, Lee W, Kulkarni G. Randomized controlled trial of doxycycline in prevention of recurrent periodontitis in high-risk patients: antimicrobial activity and collagenase inhibition. J Clin Pharm Ther 1992. [DOI: 10.1111/j.1365-2710.1992.tb01186.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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McCulloeh CAG, Birek P, Overall C, Aitken S, Lee W, Kulkarni G. Randomized controlled trial of doxycycline in prevention of recurrent periodontitis in high-risk patients: antimicrobial activity and collagenase inhibition. J Clin Pharm Ther 1992. [DOI: 10.1111/j.1365-2710.1992.tb01162.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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McCulloch CA, Birek P, Overall C, Aitken S, Lee W, Kulkarni G. Randomized controlled trial of doxycycline in prevention of recurrent periodontitis in high-risk patients: antimicrobial activity and collagenase inhibition. J Clin Periodontol 1990; 17:616-22. [PMID: 2174446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
82 patients with a recent history of periodontal abscesses and/or loss of gingival attachment (GAL) despite active periodontal therapy were enrolled in a double-blind, randomized, placebo-controlled trial. Clinical measurements and subgingival scaling were performed every 2 months. If any site exhibited greater than or equal to 2 mm loss of GAL or a periodontal abscess, patients were administered either 100 mg Doxycycline per day for 3 weeks or placebo. During 12 months of monitoring, 55 patients exhibited recurrent active disease and were then randomly assigned to either the Doxycycline or placebo groups. Clinical measurements of GAL and microbiological culture of subgingival bacteria were made at intervals between 1 week and 7 months after completion of the drug regime. Within 7 months, 15 out of 19 patients on placebo exhibited recurrent disease compared to 13 out of 29 patients on Doxycycline, a relative risk reduction of 43% (p less than 0.05) for Doxycycline compared to placebo. Minimal inhibitory concentrations of Doxycycline for subgingival plaque samples from active sites ranged between 25-100 micrograms/ml, which are several fold higher than reported crevicular fluid concentrations for this drug. However gingival crevicular fluid collagenase was inhibited in vitro at concentrations of 5-10 micrograms/ml Doxycycline. These data indicate that Doxycycline provides significant risk reduction of recurrent periodontitis in patients with active disease.
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Affiliation(s)
- C A McCulloch
- Faculty of Dentistry, University of Toronto, Ontario, Canada
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McCulloch CAG, Birek P, Overall C, Aitken S, Lee W, Kulkarni G. Randomized controlled trial of doxycycline in prevention of recurrent periodontitis in high-risk patients: antimicrobial activity and collagenase inhibition. J Clin Periodontol 1990. [DOI: 10.1111/j.1600-051x.1990.tb01682.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Overall C. Selective termination of pregnancy and women's reproductive autonomy. Hastings Cent Rep 1990; 20:6-11. [PMID: 2376500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- C Overall
- Queen's University, Kingston, Ontario, Canada
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