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Xiong Y, Li S, Zhang Y, Chen Q, Xing M, Zhang Y, Wang Q. MechanoBase: a comprehensive database for the mechanics of tissues and cells. Database (Oxford) 2024; 2024:baae040. [PMID: 38805752 PMCID: PMC11131424 DOI: 10.1093/database/baae040] [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: 10/19/2023] [Revised: 04/16/2024] [Accepted: 05/13/2024] [Indexed: 05/30/2024]
Abstract
Mechanical aspects of tissues and cells critically influence a myriad of biological processes and can substantially alter the course of diverse diseases. The emergence of diverse methodologies adapted from physical science now permits the precise quantification of the cellular forces and the mechanical properties of tissues and cells. Despite the rising interest in tissue and cellular mechanics across fields like biology, bioengineering and medicine, there remains a noticeable absence of a comprehensive and readily accessible repository of this pertinent information. To fill this gap, we present MechanoBase, a comprehensive tissue and cellular mechanics database, curating 57 480 records from 5634 PubMed articles. The records archived in MechanoBase encompass a range of mechanical properties and forces, such as modulus and tractions, which have been measured utilizing various technical approaches. These measurements span hundreds of biosamples across more than 400 species studied under diverse conditions. Aiming for broad applicability, we design MechanoBase with user-friendly search, browsing and data download features, making it a versatile tool for exploring biomechanical attributes in various biological contexts. Moreover, we add complementary resources, including the principles of popular techniques, the concepts of mechanobiology terms and the cellular and tissue-level expression of related genes, offering scientists unprecedented access to a wealth of knowledge in this field of research. Database URL: https://zhanglab-web.tongji.edu.cn/mechanobase/ and https://compbio-zhanglab.org/mechanobase/.
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Affiliation(s)
- Yanhong Xiong
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
- Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Shiyu Li
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
- Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Yuxuan Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
- Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Qianqian Chen
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
- Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Mengtan Xing
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
- Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Yong Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
- Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Qi Wang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
- Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
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Djalali-Cuevas A, Rettel M, Stein F, Savitski M, Kearns S, Kelly J, Biggs M, Skoufos I, Tzora A, Prassinos N, Diakakis N, Zeugolis DI. Macromolecular crowding in human tenocyte and skin fibroblast cultures: A comparative analysis. Mater Today Bio 2024; 25:100977. [PMID: 38322661 PMCID: PMC10846491 DOI: 10.1016/j.mtbio.2024.100977] [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: 10/04/2023] [Revised: 12/22/2023] [Accepted: 01/24/2024] [Indexed: 02/08/2024] Open
Abstract
Although human tenocytes and dermal fibroblasts have shown promise in tendon engineering, no tissue engineered medicine has been developed due to the prolonged ex vivo time required to develop an implantable device. Considering that macromolecular crowding has the potential to substantially accelerate the development of functional tissue facsimiles, herein we compared human tenocyte and dermal fibroblast behaviour under standard and macromolecular crowding conditions to inform future studies in tendon engineering. Basic cell function analysis made apparent the innocuousness of macromolecular crowding for both cell types. Gene expression analysis of the without macromolecular crowding groups revealed expression of tendon related molecules in human dermal fibroblasts and tenocytes. Protein electrophoresis and immunocytochemistry analyses showed significantly increased and similar deposition of collagen fibres by macromolecular crowding in the two cell types. Proteomics analysis demonstrated great similarities between human tenocyte and dermal fibroblast cultures, as well as the induction of haemostatic, anti-microbial and tissue-protective proteins by macromolecular crowding in both cell populations. Collectively, these data rationalise the use of either human dermal fibroblasts or tenocytes in combination with macromolecular crowding in tendon engineering.
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Affiliation(s)
- Adrian Djalali-Cuevas
- Laboratory of Animal Science, Nutrition and Biotechnology, School of Agriculture, University of Ioannina, Arta, Greece
- School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Charles Institute of Dermatology, Conway Institute of Biomolecular & Biomedical Research and School of Mechanical & Materials Engineering, University College Dublin (UCD), Dublin, Ireland
| | - Mandy Rettel
- Proteomics Core Facility, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
| | - Frank Stein
- Proteomics Core Facility, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
| | - Mikhail Savitski
- Proteomics Core Facility, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
| | | | - Jack Kelly
- Galway University Hospital, Galway, Ireland
| | - Manus Biggs
- Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, University of Galway, Galway, Ireland
| | - Ioannis Skoufos
- Laboratory of Animal Science, Nutrition and Biotechnology, School of Agriculture, University of Ioannina, Arta, Greece
| | - Athina Tzora
- Laboratory of Animal Science, Nutrition and Biotechnology, School of Agriculture, University of Ioannina, Arta, Greece
| | - Nikitas Prassinos
- School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikolaos Diakakis
- School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios I. Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Charles Institute of Dermatology, Conway Institute of Biomolecular & Biomedical Research and School of Mechanical & Materials Engineering, University College Dublin (UCD), Dublin, Ireland
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3
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Jansen I, Cahalane R, Hengst R, Akyildiz A, Farrell E, Gijsen F, Aikawa E, van der Heiden K, Wissing T. The interplay of collagen, macrophages, and microcalcification in atherosclerotic plaque cap rupture mechanics. Basic Res Cardiol 2024; 119:193-213. [PMID: 38329498 PMCID: PMC11008085 DOI: 10.1007/s00395-024-01033-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 02/09/2024]
Abstract
The rupture of an atherosclerotic plaque cap overlying a lipid pool and/or necrotic core can lead to thrombotic cardiovascular events. In essence, the rupture of the plaque cap is a mechanical event, which occurs when the local stress exceeds the local tissue strength. However, due to inter- and intra-cap heterogeneity, the resulting ultimate cap strength varies, causing proper assessment of the plaque at risk of rupture to be lacking. Important players involved in tissue strength include the load-bearing collagenous matrix, macrophages, as major promoters of extracellular matrix degradation, and microcalcifications, deposits that can exacerbate local stress, increasing tissue propensity for rupture. This review summarizes the role of these components individually in tissue mechanics, along with the interplay between them. We argue that to be able to improve risk assessment, a better understanding of the effect of these individual components, as well as their reciprocal relationships on cap mechanics, is required. Finally, we discuss potential future steps, including a holistic multidisciplinary approach, multifactorial 3D in vitro model systems, and advancements in imaging techniques. The obtained knowledge will ultimately serve as input to help diagnose, prevent, and treat atherosclerotic cap rupture.
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Affiliation(s)
- Imke Jansen
- Department of Biomedical Engineering, Thorax Center Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Rachel Cahalane
- Mechanobiology and Medical Device Research Group (MMDRG), Biomedical Engineering, College of Science and Engineering, University of Galway, Galway, Ireland
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ranmadusha Hengst
- Department of Biomedical Engineering, Thorax Center Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Ali Akyildiz
- Department of Biomedical Engineering, Thorax Center Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Biomechanical Engineering, Technical University Delft, Delft, The Netherlands
| | - Eric Farrell
- Department of Oral and Maxillofacial Surgery, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Frank Gijsen
- Department of Biomedical Engineering, Thorax Center Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Biomechanical Engineering, Technical University Delft, Delft, The Netherlands
| | - Elena Aikawa
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Kim van der Heiden
- Department of Biomedical Engineering, Thorax Center Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Tamar Wissing
- Department of Biomedical Engineering, Thorax Center Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.
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Panwar P, Olesen JB, Blum G, Delaisse JM, Søe K, Brömme D. Real-time analysis of osteoclast resorption and fusion dynamics in response to bone resorption inhibitors. Sci Rep 2024; 14:7358. [PMID: 38548807 PMCID: PMC10978898 DOI: 10.1038/s41598-024-57526-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 03/19/2024] [Indexed: 04/01/2024] Open
Abstract
Cathepsin K (CatK), an essential collagenase in osteoclasts (OCs), is a potential therapeutic target for the treatment of osteoporosis. Using live-cell imaging, we monitored the bone resorptive behaviour of OCs during dose-dependent inhibition of CatK by an ectosteric (Tanshinone IIA sulfonate) and an active site inhibitor (odanacatib). CatK inhibition caused drastic reductions in the overall resorption speed of OCs. At IC50 CatK-inhibitor concentration, OCs reduced about 40% of their trench-forming capacity and at fourfold IC50 concentrations, a > 95% reduction was observed. The majority of CatK-inhibited OCs (~ 75%) were involved in resorption-migration-resorption episodes forming adjacent pits, while ~ 25% were stagnating OCs which remained associated with the same excavation. We also observed fusions of OCs during the resorption process both in control and inhibitor-treated conditions, which increased their resorption speeds by 30-50%. Inhibitor IC50-concentrations increased OC-fusion by twofold. Nevertheless, more fusion could not counterweigh the overall loss of resorption activity by inhibitors. Using an activity-based probe, we demonstrated the presence of active CatK at the resorbing front in pits and trenches. In conclusion, our data document how OCs respond to CatK-inhibition with respect to movement, bone resorption activity, and their attempt to compensate for inhibition by activating fusion.
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Affiliation(s)
- Preety Panwar
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
- Department of Pharmaceutical Sciences, Elizabeth City State University, Elizabeth City, NC, USA
| | - Jacob Bastholm Olesen
- Clinical Cell Biology, Pathology Research Unit, Department of Clinical Research, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
- Department of Pathology, Odense University Hospital, Odense, Denmark
| | - Galia Blum
- Faculty of Medicine, Campus Ein Karem, The School of Pharmacy, Institute of Drug Research, The Hebrew University of Jerusalem, Room 407, 9112001, Jerusalem, Israel
| | - Jean-Marie Delaisse
- Clinical Cell Biology, Pathology Research Unit, Department of Clinical Research, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Kent Søe
- Clinical Cell Biology, Pathology Research Unit, Department of Clinical Research, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark.
- Department of Pathology, Odense University Hospital, Odense, Denmark.
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark.
| | - Dieter Brömme
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada.
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada.
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Cathepsins in the extracellular space: Focusing on non-lysosomal proteolytic functions with clinical implications. Cell Signal 2023; 103:110531. [PMID: 36417977 DOI: 10.1016/j.cellsig.2022.110531] [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: 07/23/2022] [Revised: 10/29/2022] [Accepted: 11/18/2022] [Indexed: 11/21/2022]
Abstract
Cathepsins can be found in the extracellular space, cytoplasm, and nucleus. It was initially suspected that the primary physiological function of the cathepsins was to break down intracellular protein, and that they also had a role in pathological processes including inflammation and apoptosis. However, the many actions of cathepsins outside the cell and their complicated biological impacts have garnered much interest. Cathepsins play significant roles in a number of illnesses by regulating parenchymal cell proliferation, cell migration, viral invasion, inflammation, and immunological responses through extracellular matrix remodeling, signaling disruption, leukocyte recruitment, and cell adhesion. In this review, we outline the physiological roles of cathepsins in the extracellular space, the crucial pathological functions performed by cathepsins in illnesses, and the recent breakthroughs in the detection and therapy of specific inhibitors and fluorescent probes in associated dysfunction.
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Shen J, Zhang W, Jiang Q, Gao P, Xu Y, Xia W. The role of cathepsin L on structural changes of collagen fibers involved in textural deterioration of chilled grass carp (Ctenopharyngodon idella) fillets. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:5858-5866. [PMID: 35426126 DOI: 10.1002/jsfa.11935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/10/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Textural deterioration is a serious problem in chilled fish flesh. Cysteine proteinases are proposed to participate in disintegration of collagen fibers during this process, while its mechanism remains elusive. In the present study, a cysteine proteinase was purified from grass carp muscle and identified by mass spectrometry, and its effect on structural changes of collagen fibers was investigated. RESULTS During storage at 4 °C, cysteine proteinase activity in fillets increased to 1.53-fold at day 5 and maintained a high level later, and this variable was related to a decline in shear force and an increase in drip loss. A 29 kDa cysteine proteinase was purified through ammonium sulfate precipitation and column chromatography, and identified as cathepsin L. Cathepsin L caused collagen fibers to partly disintegrate into fibril bundles and individual fibrils at 48 h, while the triple helical structure of collagen molecules remained stable. Release of soluble proteins and glycosaminoglycans from cathepsin L-treated collagen fibers was time dependent, coinciding with a release of 4.12 ± 0.13% and 8.57 ± 0.03% at 48 h respectively. However, 0.85 ± 0.02% of hydroxyproline was freed from cathepsin L-treated collagen fibers at 48 h. Furthermore, scanning electron microscopy revealed that the inhibitory effect of cathepsin L could retard the destruction of intramuscular connective tissues (IMCTs). CONCLUSION These results indicated that cathepsin L might be involved in collagen fiber breakdown by degrading collagen-associated proteoglycans during textural deterioration of grass carp. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Jiandong Shen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
| | - Wei Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
| | - Qixing Jiang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
| | - Pei Gao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
| | - Yanshun Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
| | - Wenshui Xia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu, China
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Bose S, Li S, Mele E, Silberschmidt VV. Exploring the Mechanical Properties and Performance of Type-I Collagen at Various Length Scales: A Progress Report. MATERIALS 2022; 15:ma15082753. [PMID: 35454443 PMCID: PMC9025246 DOI: 10.3390/ma15082753] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 12/30/2022]
Abstract
Collagen is the basic protein of animal tissues and has a complex hierarchical structure. It plays a crucial role in maintaining the mechanical and structural stability of biological tissues. Over the years, it has become a material of interest in the biomedical industries thanks to its excellent biocompatibility and biodegradability and low antigenicity. Despite its significance, the mechanical properties and performance of pure collagen have been never reviewed. In this work, the emphasis is on the mechanics of collagen at different hierarchical levels and its long-term mechanical performance. In addition, the effect of hydration, important for various applications, was considered throughout the study because of its dramatic influence on the mechanics of collagen. Furthermore, the discrepancies in reports of the mechanical properties of collagenous tissues (basically composed of 20-30% collagen fibres) and those of pure collagen are discussed.
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Affiliation(s)
- Shirsha Bose
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough LE11 3TU, Leicestershire, UK; (S.B.); (S.L.)
| | - Simin Li
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough LE11 3TU, Leicestershire, UK; (S.B.); (S.L.)
| | - Elisa Mele
- Department of Materials, Loughborough University, Loughborough LE11 3TU, Leicestershire, UK
- Correspondence: (E.M.); (V.V.S.)
| | - Vadim V. Silberschmidt
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough LE11 3TU, Leicestershire, UK; (S.B.); (S.L.)
- Laboratory of Mechanics of Biocompatible Materials and Devices, Perm National Research Polytechnic University, 614990 Perm, Russia
- Correspondence: (E.M.); (V.V.S.)
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Shen J, Jiang Q, Zhang W, Xu Y, Xia W. Assessment of gelatinolytic proteinases in chilled grass carp (Ctenopharyngodon idellus) fillets: characterization and contribution to texture softening. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:1919-1926. [PMID: 34514605 DOI: 10.1002/jsfa.11529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/25/2021] [Accepted: 09/12/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Texture softening is always a problem during chilling of grass carp fillets. To solve this problem and provide for better quality of flesh, understanding the mechanism of softening is necessary. Gelatinolytic proteinases are suspected to play an essential role in the disintegration of collagen in softening of fish flesh. In the present study, the types and contribution of gelatinolytic proteinases in chilled fillets were investigated. RESULTS Four active bands (G1, 250 kDa; G2, 68 kDa; G3, 66 kDa; G4, 29 kDa) of gelatinolytic proteinases were identified in grass carp fillets by gelatin zymography. The effect of inhibitors and metal ions revealed that G1 was possibly a serine proteinase, G2 and G3 were calcium-dependent metalloproteinases and G4 was a cysteine proteinase. The effect of the inhibitors phenylmethanesulfonyl fluoride (PMSF), l-3-carboxy-trans-2,3-epoxy-propionyl-l-leucine-4-guanidinobutylamide (E-64) and 1,10-phenanthroline (Phen) on chilled fillets revealed that gelatinolytic proteinase activities were significantly suppressed. Collagen solubility indicated that metalloproteinase and serine proteinase played critical roles in collagen breakdown during the first 3 days, and cysteine proteinase revealed its effect after 3 days. Meanwhile, during chilled storage for 11 days, the final values of shear force increased 19.68% and 24.33% in PMSF and E-64 treatments when compared to control fillets respectively, whereas the increase after Phen treatment was 49.89%. CONCLUSION Our study concluded that the disintegration of collagen in post-mortem softening of grass carp fillets was mainly mediated by metalloproteinase and to a lesser extent by serine proteinase and cysteine proteinase. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Jiandong Shen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Qixing Jiang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Wei Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Yanshun Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Wenshui Xia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
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Chen Y, Yang J, Wang Y, Shen W, Liu J, Yuan M, Hao X, Zhong L, Guo R. Identification and Analysis of Hub Genes in Diabetic Cardiomyopathy: Potential Role of Cytochrome P450 1A1 in Mitochondrial Metabolism and STZ-Induced Myocardial Dysfunction. Front Cardiovasc Med 2022; 9:835244. [PMID: 35387435 PMCID: PMC8977650 DOI: 10.3389/fcvm.2022.835244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/25/2022] [Indexed: 11/23/2022] Open
Abstract
Diabetic cardiomyopathy (DCM) is a primary cause of death in diabetic patients; however, its molecular mechanism is not yet clear, and there is no uniform standard for diagnosis. The aim of this study is to discover the pathogenesis and potential therapeutic targets of DCM through screening and analysis of differentially expressed genes (DEGs) in heart ventricles of DCM, and to testify the role of key hub genes in DCM-induced myocardial dysfunction. Datasets GSE4745 and GSE6880 were downloaded from the GEO database. The difference analysis, visual analysis, cluster analysis and enrichment analysis were performed by using R language, python scripts and bioinformatics software followed by the construction of protein-protein interaction (PPI) network to obtain hub genes. The DCM models were established by streptozocin (STZ) injection to the male mice. The cardiac function and the expressions of hub genes were examined by using echocardiography and real-time quantitative poly-merase chain reaction (RT-qPCR), followed by multiple statistical analyses. Bioinformatic results indicate that mitochondrial dysfunction, disturbed lipid metabolism and decreased collagen synthesis are the main causes of the DCM development. In particular, the hub gene Cyp1a1 that encodes Cytochrome P450 1A1 (CYP4501A1) enzyme has the highest connectivity in the interaction network, and is associated with mitochondrial homeostasis and energy metabolism. It plays a critical role in the oxidation of endogenous or exogenous substrates. Our RT-qPCR results confirmed that ventricular Cyp1a1 mRNA level was nearly 12-fold upregulated in DCM model compared to normal control, which was correlated with abnormal cardiac function in diabetic individuals. CYP4501A1 protein expression in mitochondria was also increased in diabetic hearts. However, we found no significant changes in collagen expressions in cardiac ventricles of mice with DCM. This study provided compact data support for understanding the pathogenesis of DCM. CYP4501A1 might be considered as a potential candidate targeting for DCM therapy. Follow-up animal and clinical verifications need to be further explored.
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Affiliation(s)
- Yinliang Chen
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, China
| | - Jinbao Yang
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, China
| | - Ying Wang
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, China
| | - Weike Shen
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, China
| | - Jinlin Liu
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, China
| | - Meng Yuan
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, China
| | - Xiaoyu Hao
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, China
| | - Li Zhong
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, China
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA, United States
| | - Rui Guo
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, China
- The Key Laboratory of Zoological Systematics and Application, College of Life Sciences, Hebei University, Baoding, China
- *Correspondence: Rui Guo
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10
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Shen J, Zhang W, Gao P, Xu Y, Xia W. The role of endogenous serine proteinase on disintegration of collagen fibers from grass carp (Ctenopharyngodon idellus). Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.113003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Blázquez-Carmona P, Sanz-Herrera JA, Mora-Macías J, Morgaz J, Domínguez J, Reina-Romo E. Time-Dependent Collagen Fibered Structure in the Early Distraction Callus: Imaging Characterization and Mathematical Modeling. Ann Biomed Eng 2022; 50:1798-1809. [PMID: 35732853 PMCID: PMC9794544 DOI: 10.1007/s10439-022-02992-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 06/09/2022] [Indexed: 12/31/2022]
Abstract
Collagen is a ubiquitous protein present in regenerating bone tissues that experiences multiple biological phenomena during distraction osteogenesis until the deposition of phosphate crystals. This work combines fluorescence techniques and mathematical modeling to shed light on the mechano-structural processes behind the maturation and accommodation-to-mineralization of the callus tissue. Ovine metatarsal bone calluses were analyzed through confocal images at different stages of the early distraction osteogenesis process, quantifying the fiber orientation distribution and mean intensity as fiber density measure. Likewise, a mathematical model based on the experimental data was defined to micromechanically characterize the apparent stiffening of the tissue within the distracted callus. A reorganization of the fibers around the distraction axis and increased fiber density were found as the bone fragments were gradually separated. Given the degree of significance between the mathematical model and previous in vivo data, reorganization, densification, and bundle maturation phenomena seem to explain the apparent mechanical maturation observed in the tissue theoretically.
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Affiliation(s)
- Pablo Blázquez-Carmona
- Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Avenida Camino de los Descubrimientos s/n, 41092 Seville, Spain
| | - José A. Sanz-Herrera
- Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Avenida Camino de los Descubrimientos s/n, 41092 Seville, Spain
| | - Juan Mora-Macías
- Escuela Técnica Superior de Ingeniería, Universidad de Huelva, 21007 Huelva, Spain
| | - Juan Morgaz
- Hospital Clínico Veterinario, Universidad de Córdoba, Ctra. Nacional IV-A, Km 396, 14014 Córdoba, Spain
| | - Jaime Domínguez
- Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Avenida Camino de los Descubrimientos s/n, 41092 Seville, Spain
| | - Esther Reina-Romo
- Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Avenida Camino de los Descubrimientos s/n, 41092 Seville, Spain
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12
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Staab-Weijnitz CA. Fighting the Fiber: Targeting Collagen in Lung Fibrosis. Am J Respir Cell Mol Biol 2021; 66:363-381. [PMID: 34861139 DOI: 10.1165/rcmb.2021-0342tr] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Organ fibrosis is characterized by epithelial injury and aberrant tissue repair, where activated effector cells, mostly fibroblasts and myofibroblasts, excessively deposit collagen into the extracellular matrix. Fibrosis frequently results in organ failure and has been estimated to contribute to at least one third of all global deaths. Also lung fibrosis, in particular idiopathic pulmonary fibrosis (IPF), is a fatal disease with rising incidence worldwide. As current treatment options targeting fibrogenesis are insufficient, there is an urgent need for novel therapeutic strategies. During the last decade, several studies have proposed to target intra- and extracellular components of the collagen biosynthesis, maturation, and degradation machinery. This includes intra- and extracellular targets directly acting on collagen gene products, but also such that anabolize essential building blocks of collagen, in particular glycine and proline biosynthetic enzymes. Collagen, however, is a ubiquitous molecule in the body and fulfils essential functions as a macromolecular scaffold, growth factor reservoir, and receptor binding site in virtually every tissue. This review summarizes recent advances and future directions in this field. Evidence for the proposed therapeutic targets and where they currently stand in terms of clinical drug development for treatment of fibrotic disease is provided. The drug targets are furthermore discussed in light of (1) specificity for collagen biosynthesis, maturation and degradation, and (2) specificity for disease-associated collagen. As therapeutic success and safety of these drugs may largely depend on targeted delivery, different strategies for specific delivery to the main effector cells and to the extracellular matrix are discussed.
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Affiliation(s)
- Claudia A Staab-Weijnitz
- Helmholtz Zentrum Munchen Deutsches Forschungszentrum fur Gesundheit und Umwelt, 9150, Comprehensive Pneumology Center/Institute of Lung Biology and Disease, Member of the German Center of Lung Research (DZL), München, Germany;
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13
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Onursal C, Dick E, Angelidis I, Schiller HB, Staab-Weijnitz CA. Collagen Biosynthesis, Processing, and Maturation in Lung Ageing. Front Med (Lausanne) 2021; 8:593874. [PMID: 34095157 PMCID: PMC8172798 DOI: 10.3389/fmed.2021.593874] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 03/24/2021] [Indexed: 12/15/2022] Open
Abstract
In addition to providing a macromolecular scaffold, the extracellular matrix (ECM) is a critical regulator of cell function by virtue of specific physical, biochemical, and mechanical properties. Collagen is the main ECM component and hence plays an essential role in the pathogenesis and progression of chronic lung disease. It is well-established that many chronic lung diseases, e.g., chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF) primarily manifest in the elderly, suggesting increased susceptibility of the aged lung or accumulated alterations in lung structure over time that favour disease. Here, we review the main steps of collagen biosynthesis, processing, and turnover and summarise what is currently known about alterations upon lung ageing, including changes in collagen composition, modification, and crosslinking. Recent proteomic data on mouse lung ageing indicates that, while the ER-resident machinery of collagen biosynthesis, modification and triple helix formation appears largely unchanged, there are specific changes in levels of type IV and type VI as well as the two fibril-associated collagens with interrupted triple helices (FACIT), namely type XIV and type XVI collagens. In addition, levels of the extracellular collagen crosslinking enzyme lysyl oxidase are decreased, indicating less enzymatically mediated collagen crosslinking upon ageing. The latter contrasts with the ageing-associated increase in collagen crosslinking by advanced glycation endproducts (AGEs), a result of spontaneous reactions of protein amino groups with reactive carbonyls, e.g., from monosaccharides or reactive dicarbonyls like methylglyoxal. Given the slow turnover of extracellular collagen such modifications accumulate even more in ageing tissues. In summary, the collective evidence points mainly toward age-induced alterations in collagen composition and drastic changes in the molecular nature of collagen crosslinks. Future work addressing the consequences of these changes may provide important clues for prevention of lung disease and for lung bioengineering and ultimately pave the way to novel targeted approaches in lung regenerative medicine.
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Affiliation(s)
- Ceylan Onursal
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease, Helmholtz-Zentrum München, Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Elisabeth Dick
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease, Helmholtz-Zentrum München, Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Ilias Angelidis
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease, Helmholtz-Zentrum München, Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Herbert B Schiller
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease, Helmholtz-Zentrum München, Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Claudia A Staab-Weijnitz
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease, Helmholtz-Zentrum München, Member of the German Center of Lung Research (DZL), Munich, Germany
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14
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Majeed M, Bhatti KH, Amjad MS, Abbasi AM, Bussmann RW, Nawaz F, Rashid A, Mehmood A, Mahmood M, Khan WM, Ahmad KS. Ethno-veterinary uses of Poaceae in Punjab, Pakistan. PLoS One 2020; 15:e0241705. [PMID: 33142315 PMCID: PMC7608896 DOI: 10.1371/journal.pone.0241705] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 10/20/2020] [Indexed: 12/12/2022] Open
Abstract
Plant species of the Poaceae family are not only used as fodder and forage but also contribute substantially to the treatment of various health disorders, particularly in livestock. Consequently, the present study was aimed to document the therapeutic uses of Poaceae practiced by the inhabitants of the Punjab Province for the treatment of various veterinary health disorders. Semi structured interviews, group discussion and field walks were conducted to collect the data. Quantitative indices including cultural significance index (CSI), relative frequency of citations (RFC), fidelity level (FL), relative popularity level (RPL), and Jaccard Index (JI) were used for the data analysis. Traditional uses of 149 species belonging to 60 genera and 16 tribes of 5 sub families of Poaceae were recorded. Whole plants and leaves were the most consistently used parts with 40.94 and 29.53%. The plants were mainly given orally as fodder (59 reports) without processing followed by decoction (35 reports). Most of the species were employed to treat infectious diseases (25.93%), and digestive disorders (14.10%). Triticum aestivum had the highest CSI, RFC and RPL levels at 8.00, 0.96, 1.00, respectively, followed by Oryza sativa and Poa annua. Likewise, T. aestivum and Saccharum spontaneum had 100% FL and ROP. Jaccard index ranged from 12.25 to 0.37. Twelve plant species namely Chrysopogon zizanioides (anti-inflammatory), Pennisetum lanatum (improve bull fertility), Cymbopogon citratus (glandular secretion), Sorghum saccharatum and Themeda triandra (malaria), Aristida funiculate (anticancer), Koeleria argentia (skin allergies), Tetrapogon villosus (antibacterial), Cynodon radiatus (eyes infection), Sporobolus nervosa (Jaundice), Enneapogon persicus (antifungal), and Panicum repens (dysfunctional cattle organs) were reported for the first time, with novel ethnoveterinary uses. The inhabitants of the study area had a strong association with their surrounding plant diversity and possessed significant knowledge on therapeutic uses of Poaceae to treat various health disorders in animals. Plant species with maximum cultural and medicinal values could be a potential source of novel drugs to cure health disorders in animals and human as well.
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Affiliation(s)
- Muhammad Majeed
- Department of Botany, University of Gujrat, Hafiz Hayat Campus, Gujrat, Punjab, Pakistan
| | - Khizar Hayat Bhatti
- Department of Botany, University of Gujrat, Hafiz Hayat Campus, Gujrat, Punjab, Pakistan
| | - Muhammad Shoaib Amjad
- Department of Botany, Women University of Azad Jammu and Kashmir, Bagh, AJK, Pakistan
| | - Arshad Mehmood Abbasi
- Department of Environmental Sciences, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Rainer W. Bussmann
- Department of Ethnobotany, Institute of Botany, Ilia State University, La Paz, Bolivia
| | - Fahim Nawaz
- Department of Agronomy, MNS, University of Agriculture, Multan, Pakistan
| | - Audil Rashid
- Department of Botany, University of Gujrat, Hafiz Hayat Campus, Gujrat, Punjab, Pakistan
| | - Ansar Mehmood
- Department of Botany, University of Poonch Rawalakot (UPR), Azad Jammu and Kashmir, Pakistan
| | - Majid Mahmood
- Department of Zoology, University of Poonch Rawalakot (UPR), Azad Jammu and Kashmir, Pakistan
| | | | - Khawaja Shafique Ahmad
- Department of Botany, University of Poonch Rawalakot (UPR), Azad Jammu and Kashmir, Pakistan
- * E-mail: ,
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15
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On collagen fiber morphoelasticity and homeostatic remodeling tone. J Mech Behav Biomed Mater 2020; 113:104154. [PMID: 33158790 DOI: 10.1016/j.jmbbm.2020.104154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 03/14/2020] [Accepted: 10/21/2020] [Indexed: 11/23/2022]
Abstract
A variety of biochemical and physical processes participate in the creation and maintenance of collagen in biological tissue. Under mechanical stimuli these collagen fibers undergo continuous processes of morphoelastic change. The model presented here is motivated by experimental reports of stretch-stabilization of the collagen fibers to enzymatic degradation. The fiber structure is modeled in terms of a fiber density evolution that is regulated by means of a fixed creation rate and a mechano-sensitive dissolution rate. The theory accounts for the possibly different natural configurations of the fiber unit constituents and the ground substance matrix. It also generalizes previous theoretical descriptions so as to account for finite survival times of the individual fiber units. Special consideration is given to steady state fiber-remodeling processes in which fiber creation and dissolution are in balance. Fiber assembly processes that involve prestretching the fiber constituents yield a homeostatic stress response with a characteristic fiber tone. Fiber density returns to homeostasis after mechanical disruption when sufficient time has passed.
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16
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Borggaard XG, Pirapaharan DC, Delaissé JM, Søe K. Osteoclasts' Ability to Generate Trenches Rather Than Pits Depends on High Levels of Active Cathepsin K and Efficient Clearance of Resorption Products. Int J Mol Sci 2020; 21:ijms21165924. [PMID: 32824687 PMCID: PMC7460581 DOI: 10.3390/ijms21165924] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 12/19/2022] Open
Abstract
Until recently, it was well-accepted that osteoclasts resorb bone according to the resorption cycle model. This model is based on the assumption that osteoclasts are immobile during bone erosion, allowing the actin ring to be firmly attached and thereby provide an effective seal encircling the resorptive compartment. However, through time-lapse, it was recently documented that osteoclasts making elongated resorption cavities and trenches move across the bone surface while efficiently resorbing bone. However, it was also shown that osteoclasts making rounded cavities and pits indeed resorb bone while they are immobile. Only little is known about what distinguishes these two different resorption modes. This is of both basic and clinical interest because these resorption modes are differently sensitive to drugs and are affected by the gender as well as age of the donor. In the present manuscript we show that: 1. levels of active cathepsin K determine the switch from pit to trench mode; 2. pit and trench mode depend on clathrin-mediated endocytosis; and 3. a mechanism integrating release of resorption products and membrane/integrin recycling is required for prolongation of trench mode. Our study therefore contributes to an improved understanding of the molecular and cellular determinants for the two osteoclastic bone resorption modes.
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Affiliation(s)
- Xenia G. Borggaard
- Department of Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, 7100 Vejle, Denmark; (D.C.P.); (J.-M.D.)
- Department of Regional Health Research, University of Southern Denmark, 7100 Vejle, Denmark
- Clinical Cell Biology, Department of Pathology, Odense University Hospital, 5000 Odense C, Denmark
- Clinical Cell Biology, Pathology Research Unit, Department of Clinical Research, University of Southern Denmark, 5000 Odense C, Denmark
- Clinical Cell Biology, Department of Molecular Medicine, University of Southern Denmark, 5000 Odense C, Denmark
- Correspondence: (X.G.B.); (K.S.); Tel.: +45-65413190 (K.S.)
| | - Dinisha C. Pirapaharan
- Department of Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, 7100 Vejle, Denmark; (D.C.P.); (J.-M.D.)
- Department of Regional Health Research, University of Southern Denmark, 7100 Vejle, Denmark
| | - Jean-Marie Delaissé
- Department of Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, 7100 Vejle, Denmark; (D.C.P.); (J.-M.D.)
- Department of Regional Health Research, University of Southern Denmark, 7100 Vejle, Denmark
- Clinical Cell Biology, Department of Pathology, Odense University Hospital, 5000 Odense C, Denmark
- Clinical Cell Biology, Pathology Research Unit, Department of Clinical Research, University of Southern Denmark, 5000 Odense C, Denmark
- Clinical Cell Biology, Department of Molecular Medicine, University of Southern Denmark, 5000 Odense C, Denmark
| | - Kent Søe
- Department of Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, 7100 Vejle, Denmark; (D.C.P.); (J.-M.D.)
- Department of Regional Health Research, University of Southern Denmark, 7100 Vejle, Denmark
- Clinical Cell Biology, Department of Pathology, Odense University Hospital, 5000 Odense C, Denmark
- Clinical Cell Biology, Pathology Research Unit, Department of Clinical Research, University of Southern Denmark, 5000 Odense C, Denmark
- Clinical Cell Biology, Department of Molecular Medicine, University of Southern Denmark, 5000 Odense C, Denmark
- Correspondence: (X.G.B.); (K.S.); Tel.: +45-65413190 (K.S.)
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17
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Nakajima K, Arora PD, Plaha A, McCulloch CA. Role of the small GTPase activating protein IQGAP1 in collagen phagocytosis. J Cell Physiol 2020; 236:1270-1280. [PMID: 32643295 DOI: 10.1002/jcp.29933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 07/01/2020] [Indexed: 01/23/2023]
Abstract
Many adult connective tissues undergo continuous remodeling to maintain matrix homeostasis. Physiological remodeling involves the degradation of collagen fibers by the intracellular cathepsin-dependent phagocytic pathway. We considered that a multidomain, small GTPase activating protein, IQGAP1, which is involved in the generation of cell extensions, is required for collagen phagocytosis, possibly arising from its interactions with cdc42 and the actin-binding protein Flightless I (FliI). We examined the role of IQGAP1 in collagen phagocytosis by human gingival fibroblasts (HGFs) and by IQGAP1+/+ and IQGAP1-/- mouse embryonic fibroblasts. IQGAP1 was strongly expressed by HGFs, localized to vinculin-stained cell adhesions and sites where cell extensions are initiated, and colocalized with FliI. Immunoprecipitation showed that IQGAP1 associated with FliI. HGFs showed 10-fold increases of collagen binding, 6-fold higher internalization, and 3-fold higher β1 integrin activation between 30 and 180 min after incubation with collagen. Compared with IQGAP1+/+ fibroblasts, deletion of IQGAP1 reduced collagen binding (1.4-fold), collagen internalization (3-fold), β1 integrin activation (2-fold), and collagen degradation (1.8-fold). We conclude that IQGAP1 affects collagen remodeling through its regulation of phagocytic degradation pathways, which may involve the interaction of IQGAP1 with FliI.
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Affiliation(s)
- Kei Nakajima
- Department of Clinical Pathophysiology, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan.,Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Pamela D Arora
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Ajay Plaha
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
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18
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Jones B, Tonniges JR, Debski A, Albert B, Yeung DA, Gadde N, Mahajan A, Sharma N, Calomeni EP, Go MR, Hans CP, Agarwal G. Collagen fibril abnormalities in human and mice abdominal aortic aneurysm. Acta Biomater 2020; 110:129-140. [PMID: 32339711 DOI: 10.1016/j.actbio.2020.04.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 03/27/2020] [Accepted: 04/10/2020] [Indexed: 12/19/2022]
Abstract
Vascular diseases like abdominal aortic aneurysms (AAA) are characterized by a drastic remodeling of the vessel wall, accompanied with changes in the elastin and collagen content. At the macromolecular level, the elastin fibers in AAA have been reported to undergo significant structural alterations. While the undulations (waviness) of the collagen fibers is also reduced in AAA, very little is understood about changes in the collagen fibril at the sub-fiber level in AAA as well as in other vascular pathologies. In this study we investigated structural changes in collagen fibrils in human AAA tissue extracted at the time of vascular surgery and in aorta extracted from angiotensin II (AngII) infused ApoE-/- mouse model of AAA. Collagen fibril structure was examined using transmission electron microscopy and atomic force microscopy. Images were analyzed to ascertain length and depth of D-periodicity, fibril diameter and fibril curvature. Abnormal collagen fibrils with compromised D-periodic banding were observed in the excised human tissue and in remodeled regions of AAA in AngII infused mice. These abnormal fibrils were characterized by statistically significant reduction in depths of D-periods and an increased curvature of collagen fibrils. These features were more pronounced in human AAA as compared to murine samples. Thoracic aorta from Ang II-infused mice, abdominal aorta from saline-infused mice, and abdominal aorta from non-AAA human controls did not contain abnormal collagen fibrils. The structural alterations in abnormal collagen fibrils appear similar to those reported for collagen fibrils subjected to mechanical overload or chronic inflammation in other tissues. Detection of abnormal collagen could be utilized to better understand the functional properties of the underlying extracellular matrix in vascular as well as other pathologies. STATEMENT OF SIGNIFICANCE: Several vascular diseases including abdominal aortic aneurysm (AAA) are characterized by extensive remodeling in the vessel wall. Although structural alterations in elastin fibers are well characterized in vascular diseases, very little is known about the collagen fibril structure in these diseases. We report here a comprehensive ultrastructural evaluation of the collagen fibrils in AAA, using high-resolution microscopy techniques like transmission electron microscopy (TEM) and atomic force microscopy (AFM). We elucidate how abnormal collagen fibrils with compromised D-periodicity and increased fibril curvature are present in the vascular tissue in both clinical AAA as well as in murine models. We discuss how these abnormal collagen fibrils are likely a consequence of mechanical overload accompanying AAA and could impact the functional properties of the underlying tissue.
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Affiliation(s)
- Blain Jones
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
| | - Jeffrey R Tonniges
- Biophysics Graduate Program, The Ohio State University, Columbus, OH, USA
| | - Anna Debski
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
| | - Benjamin Albert
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
| | - David A Yeung
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
| | - Nikhit Gadde
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
| | - Advitiya Mahajan
- Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH, USA; Department of Cardiovascular Medicine, Dalton Cardiovascular Research Center, and Medical Pharmacology and Physiology Columbia, University of Missouri, USA
| | - Neekun Sharma
- Department of Cardiovascular Medicine, Dalton Cardiovascular Research Center, and Medical Pharmacology and Physiology Columbia, University of Missouri, USA
| | - Edward P Calomeni
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Michael R Go
- Division of Vascular Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Chetan P Hans
- Center for Cardiovascular Research, Nationwide Children's Hospital, Columbus, OH, USA; Department of Cardiovascular Medicine, Dalton Cardiovascular Research Center, and Medical Pharmacology and Physiology Columbia, University of Missouri, USA.
| | - Gunjan Agarwal
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA; Biophysics Graduate Program, The Ohio State University, Columbus, OH, USA.
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19
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Bafail A, Carrilho MR, Kishen A, Prakki A. Effect of protease inhibitor specificity on dentin matrix properties. J Mech Behav Biomed Mater 2020; 109:103861. [PMID: 32543386 DOI: 10.1016/j.jmbbm.2020.103861] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate protease activity of dentin matrices subjected to treatment with non-specific (chlorhexidine - CHX), cysteine cathepsin specific (E-64), and cysteine cathepsin-K (CT-K) specific (Odanacatib - ODN) inhibitors. METHODS Pulverized dentin powder obtained from human dentin disks (0.5 mm thickness) completely demineralized with 10% H3PO4 were challenged in 1 mL lactic acid (LA) (0.1M, pH 5.5) or stored in deionized water for 30 min. Aliquots of dentin powder were then immersed in 1 mL of CHX (2%), E-64 (10 μM and 20 μM) or Odanacatib (0.2 nM and 1 μM) for 30min. Degradation of dentin collagen was determined by telopeptide assays measuring the sub-product release of C-terminal cross-linked telopeptides (ICTP) and C-terminal peptide (CTX) in incubation media, which correlates with matrix metalloproteinases (MMP) and CT-K activities respectively (n = 3). The ICTP and CTX data were normalized to concentration of total protein (ICTPtp and CTXtp) in the media, measured by bicinchoninic acid assay. Dentin matrix properties were also measured by gravimetric change (n = 8) and ultimate tensile strength (UTS) (n = 10). Data were analyzed by one-way ANOVA followed by Tukey's post-hoc test and independent t-test (α = 5%). RESULTS Telopeptide assays showed significantly lower CTXtp values after treatment with E-64 and Odanacatib. E-64 and Odanacatib at all tested concentrations significantly reduced the release of ICTPtp. Gravimetric analysis showed no significant difference between the tested inhibitors and control except for CHX after lactic acid challenge. UTS results showed significantly higher values for E-64 (20 μM) and Odanacatib (0.2 nM and 1 μM) groups in deionized water. SIGNIFICANCE Dentin therapies targeting enzymes such as CT-K by specific inhibitors may provide superior pharmacokinetics and optimum efficacy due to precise protein binding, consequently limiting collagen degradation directly or indirectly by enzyme related pathways.
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Affiliation(s)
- Arwa Bafail
- Dental Research Institute, Faculty of Dentistry, University of Toronto, 124 Edward St, Toronto, ON, M5G 1G6, Canada; Restorative Dental Sciences, Faculty of Dentistry, Taibah University, Janadah Bin Umayyah Road, Tayba, Medina, 42353, Saudi Arabia
| | - Marcela Rocha Carrilho
- College of Dental Medicine Illinois, Midwestern University, 555 31st Street, Downers Grove, IL, 60515, USA
| | - Anil Kishen
- Dental Research Institute, Faculty of Dentistry, University of Toronto, 124 Edward St, Toronto, ON, M5G 1G6, Canada
| | - Anuradha Prakki
- Dental Research Institute, Faculty of Dentistry, University of Toronto, 124 Edward St, Toronto, ON, M5G 1G6, Canada.
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20
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Liu ZQ, Zhou DY, Liu YX, Yu MM, Liu B, Song L, Dong XP, Qi H, Shahidi F. Inhibitory effect of natural metal ion chelators on the autolysis of sea cucumber (Stichopus japonicus) and its mechanism. Food Res Int 2020; 133:109205. [PMID: 32466945 DOI: 10.1016/j.foodres.2020.109205] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 03/05/2020] [Accepted: 03/27/2020] [Indexed: 11/26/2022]
Abstract
Live sea cucumbers (Stichopus japonicus) were stored in a solution containing oxalic acid and tea polyphenols as natural metal ion chelators. The inhibitory effects of these chelators on the autolysis phenomenon and the underlying mechanism of action were investigated for the first time by using scanning electron microscopy, differential scanning calorimetry, low-field nuclear magnetic resonance and confocal laser scanning microscopy. External stimuli cause autolysis through the release of calcium ions (Ca2+) from cells into the extracellular connective tissue, initiating activity of the matrix metalloprotease (MMP) in the sea cucumber body wall (SCBW). MMP subsequently degrades the microfibrillar networks, that support the interconnecting collagen fibres and the interfibrillar proteoglycan bridges linking the collagen fibrils, to release the water restricted within the interspaces between collagen fibres and collagen fibrils, ultimately causing mucoid degeneration of SCBW. The natural metal ion chelators significantly inhibited the activation of MMP by chelating Ca2+, consequently effectively preventing the autolysis of SCBW.
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Affiliation(s)
- Zi-Qiang Liu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China.
| | - Da-Yong Zhou
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National Engineering Research Center of Seafood, Dalian 116034, PR China.
| | - Yu-Xin Liu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National Engineering Research Center of Seafood, Dalian 116034, PR China.
| | - Man-Man Yu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China.
| | - Bing Liu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National Engineering Research Center of Seafood, Dalian 116034, PR China.
| | - Liang Song
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National Engineering Research Center of Seafood, Dalian 116034, PR China.
| | - Xiu-Ping Dong
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National Engineering Research Center of Seafood, Dalian 116034, PR China.
| | - Hang Qi
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National Engineering Research Center of Seafood, Dalian 116034, PR China.
| | - Fereidoon Shahidi
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, NL A1B3X9, Canada.
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21
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Liu Z, Zhou D, Liu Y, Liu X, Liu Y, Liu B, Song L, Shahidi F. In vivo mechanism of action of matrix metalloprotease (MMP) in the autolysis of sea cucumber ( Stichopus japonicus). J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Zi‐qiang Liu
- School of Food Science and Technology Dalian Polytechnic University Dalian PR China
| | - Da‐yong Zhou
- School of Food Science and Technology Dalian Polytechnic University Dalian PR China
- National Engineering Research Center of Seafood Dalian PR China
| | - Yu‐xin Liu
- School of Food Science and Technology Dalian Polytechnic University Dalian PR China
- National Engineering Research Center of Seafood Dalian PR China
| | - Xiao‐yang Liu
- School of Food Science and Technology Dalian Polytechnic University Dalian PR China
- National Engineering Research Center of Seafood Dalian PR China
| | - Yan Liu
- National Engineering Research Center of Seafood Dalian PR China
| | - Bing Liu
- School of Food Science and Technology Dalian Polytechnic University Dalian PR China
- National Engineering Research Center of Seafood Dalian PR China
| | - Liang Song
- School of Food Science and Technology Dalian Polytechnic University Dalian PR China
- National Engineering Research Center of Seafood Dalian PR China
| | - Fereidoon Shahidi
- Department of Biochemistry Memorial University of Newfoundland St. John’s NL Canada
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22
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Expression of elastolytic cathepsins in human skin and their involvement in age-dependent elastin degradation. Biochim Biophys Acta Gen Subj 2020; 1864:129544. [PMID: 32007579 DOI: 10.1016/j.bbagen.2020.129544] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/20/2020] [Accepted: 01/28/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Skin ageing is associated with structure-functional changes in the extracellular matrix, which is in part caused by proteolytic degradation. Since cysteine cathepsins are major matrix protein-degrading proteases, we investigated the age-dependent expression of elastolytic cathepsins K, S, and V in human skin, their in vitro impact on the integrity of the elastic fibre network, their cleavage specificities, and the release of bioactive peptides. METHODS Cathepsin-mediated degradation of human skin elastin samples was assessed from young to very old human donors using immunohistochemical and biochemical assays, scanning electron microscopy, and mass spectrometry. RESULTS Elastin samples derived from patients between 10 and 86 years of age were analysed and showed an age-dependent deterioration of the fibre structure from a dense network of thinner fibrils into a beaded and porous mesh. Reduced levels of cathepsins K, S, and V were observed in aged skin with a predominant epidermal expression. Cathepsin V was the most potent elastase followed by cathepsin K and S. Biomechanical analysis of degraded elastin fibres corroborated the destructive activity of cathepsins. Mass spectrometric determination of the cleavage sites in elastin revealed that all three cathepsins predominantly cleaved in hydrophobic domains. The degradation of elastin was efficiently inhibited by an ectosteric inhibitor. Furthermore, the degradation of elastin fibres resulted in the release of bioactive peptides, which have previously been associated with various pathologies. CONCLUSION Cathepsins are powerful elastin-degrading enzymes and capable of generating a multitude of elastokines. They may represent a viable target for intervention strategies to reduce skin ageing.
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Reassessing enzyme kinetics: Considering protease-as-substrate interactions in proteolytic networks. Proc Natl Acad Sci U S A 2020; 117:3307-3318. [PMID: 31980525 DOI: 10.1073/pnas.1912207117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Enzymes are catalysts in biochemical reactions that, by definition, increase rates of reactions without being altered or destroyed. However, when that enzyme is a protease, a subclass of enzymes that hydrolyze other proteins, and that protease is in a multiprotease system, protease-as-substrate dynamics must be included, challenging assumptions of enzyme inertness, shifting kinetic predictions of that system. Protease-on-protease inactivating hydrolysis can alter predicted protease concentrations used to determine pharmaceutical dosing strategies. Cysteine cathepsins are proteases capable of cathepsin cannibalism, where one cathepsin hydrolyzes another with substrate present, and misunderstanding of these dynamics may cause miscalculations of multiple proteases working in one proteolytic network of interactions occurring in a defined compartment. Once rates for individual protease-on-protease binding and catalysis are determined, proteolytic network dynamics can be explored using computational models of cooperative/competitive degradation by multiple proteases in one system, while simultaneously incorporating substrate cleavage. During parameter optimization, it was revealed that additional distraction reactions, where inactivated proteases become competitive inhibitors to remaining, active proteases, occurred, introducing another network reaction node. Taken together, improved predictions of substrate degradation in a multiple protease network were achieved after including reaction terms of autodigestion, inactivation, cannibalism, and distraction, altering kinetic considerations from other enzymatic systems, since enzyme can be lost to proteolytic degradation. We compiled and encoded these dynamics into an online platform (https://plattlab.shinyapps.io/catKLS/) for individual users to test hypotheses of specific perturbations to multiple cathepsins, substrates, and inhibitors, and predict shifts in proteolytic network reactions and system dynamics.
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Liu ZQ, Liu YX, Zhou DY, Liu XY, Dong XP, Li DM, Shahidi F. The role of matrix metalloprotease (MMP) to the autolysis of sea cucumber (Stichopus japonicus). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:5752-5759. [PMID: 31162681 DOI: 10.1002/jsfa.9843] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/11/2019] [Accepted: 05/30/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Sea cucumber (Stichopus japonicus) is easy to autolysis in response to a variety of environmental and mechanical factors. In the current study, collagen fibres were extracted from fresh sea cucumber body wall and then incubated with endogenous matrix metalloprotease (MMP) of sea cucumber. Scanning electron microscopy (SEM), differential scanning calorimetry (DSC), chemical analysis and sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) analysis were utilized to demonstrate the changes in collagen fibres, collagen fibrils and collagen proteins. Moreover, a verification experiment was also carried out to confirm the contribution of MMP to the autolysis of sea cucumber. RESULTS Endogenous MMP caused complete depolymerization of collagen fibres into smaller collagen fibril bundles and collagen fibrils due to the fracture of proteoglycan interfibrillar bridges. Meanwhile, endogenous MMP also caused partial degradation of collagen fibrils by releasing soluble hydroxyproline and pyridinium cross-links. Furthermore, the treatment with MMP inhibitor (1,10-phenanthroline) prevented the autolysis of tissue blocks from S. japonicus dermis. CONCLUSION Endogenous MMP was the key enzyme in the autolysis of sea cucumber, while its action still focused on high-level structures of collagens especially collagen fibres. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Zi-Qiang Liu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P. R. China
| | - Yu-Xin Liu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P. R. China
- National Engineering Research Center of Seafood, Dalian, P. R. China
| | - Da-Yong Zhou
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P. R. China
- National Engineering Research Center of Seafood, Dalian, P. R. China
| | - Xiao-Yang Liu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P. R. China
- National Engineering Research Center of Seafood, Dalian, P. R. China
| | - Xiu-Ping Dong
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P. R. China
- National Engineering Research Center of Seafood, Dalian, P. R. China
| | - Dong-Mei Li
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P. R. China
- National Engineering Research Center of Seafood, Dalian, P. R. China
| | - Fereidoon Shahidi
- Department of Biochemistry, Memorial University of Newfoundland, St John's, Canada
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25
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Bafail A, Azizalrahman M, Vilde T, Kishen A, Prakki A. Alternative model for cathepsin K activation in human dentin. Dent Mater 2019; 35:1630-1636. [PMID: 31543377 DOI: 10.1016/j.dental.2019.08.104] [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: 05/02/2019] [Revised: 07/15/2019] [Accepted: 08/22/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To evaluate the protease activity in dentin matrices subjected to lactic acid (LA) in comparison to polyacrylic acid (PAA) challenge model at cathepsin K (CT-K) optimum pH 5.5 to assess effectiveness of inhibitors in dentin collagen degradation. METHODS Dentin disks measuring 0.5mm prepared from human molars were completely demineralized in 10% H3PO4. Demineralized dentin disks were challenged with 0.1M LA, 1.1mM PAA, artificial saliva (AS), or deionized water (C) for 24h or 7-days. Dentin collagen properties were tested by measurement of %dry mass change, and ultimate tensile strength (UTS). Degradation of dentin type I collagen was measured by telopeptide assays measuring the sub-product release of C-terminal cross-linked telopeptides (ICTP) and C-terminal peptide (CTX) in the incubation media in relation to total protein concentration, which correlates with matrix metalloproteinases (MMPs) and CT-K activities. RESULTS Gravimetric analysis showed statistically significant difference between C and other groups (p<0.04) at 24h. LA specimens showed significantly higher weight loss from 24h to 7-days (p=0.02). UTS revealed statistically significant difference between AS and LA at 24h and 7-days. UTS at 24h and 7-days for C and AS had significantly higher mean values compared to LA and PAA. Telopeptide assays reported that CTXtp results showed that LA at 24h had significantly higher mean values compared to C and AS. SIGNIFICANCE LA has the ability to activate endogenous CT-K in dentin as measured by the release of CTX (CT-K specific telopeptide). This LA based model has the potential application for further investigations on the activity and possible inhibitors of CT-K in human dentin.
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Affiliation(s)
- A Bafail
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada; Department of Restorative Dental Sciences, Faculty of Dentistry, Taibah University, Medina, Saudi Arabia
| | - M Azizalrahman
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - T Vilde
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - A Kishen
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - A Prakki
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada.
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26
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Effects of collagenase type I on the structural features of collagen fibres from sea cucumber (Stichopus japonicus) body wall. Food Chem 2019; 301:125302. [PMID: 31387034 DOI: 10.1016/j.foodchem.2019.125302] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 07/30/2019] [Accepted: 07/30/2019] [Indexed: 11/23/2022]
Abstract
The autolysis of sea cucumber is caused by depolymerisation of collagen fibres and unfolding of fibrils. In order to highlight the role of collagenase in sea cucumber autolysis, collagen fibres from sea cucumber were hydrolysed with collagenase type I. Electron microscopy (EM) results indicated the collagenase caused partial depolymerisation of collagen fibres into fibrils due to the fracture of proteoglycan interfibrillar bridges, as well as uncoiling of collagen fibrils. Chemical analysis and SDS-PAGE both indicated collagenase induced a time-dependent release of glycosaminoglycans (GAGs) and soluble proteins, which further demonstrated the degradation of proteoglycan interfibrillar bridges. Collagenase also degraded collagens by releasing soluble hydroxyproline (Hpy), with the dissolution rate of Hyp reaching 11.11% after 72 h. Fourier transform infrared analysis showed that collagenase caused the reduction of intermolecular interactions and structural order of collagen. Hence, collagenase participated in the autolysis of sea cucumber by deteriorating both macromolecular and monomeric collagens.
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27
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Andrault PM, Panwar P, Mackenzie NCW, Brömme D. Elastolytic activity of cysteine cathepsins K, S, and V promotes vascular calcification. Sci Rep 2019; 9:9682. [PMID: 31273243 PMCID: PMC6609650 DOI: 10.1038/s41598-019-45918-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 06/07/2019] [Indexed: 12/13/2022] Open
Abstract
Elastin plays an important role in maintaining blood vessel integrity. Proteolytic degradation of elastin in the vascular system promotes the development of atherosclerosis, including blood vessel calcification. Cysteine cathepsins have been implicated in this process, however, their role in disease progression and associated complications remains unclear. Here, we showed that the degradation of vascular elastin by cathepsins (Cat) K, S, and V directly stimulates the mineralization of elastin and that mineralized insoluble elastin fibers were ~25–30% more resistant to CatK, S, and V degradation when compared to native elastin. Energy dispersive X-ray spectroscopy investigations showed that insoluble elastin predigested by CatK, S, or V displayed an elemental percentage in calcium and phosphate up to 8-fold higher when compared to non-digested elastin. Cathepsin-generated elastin peptides increased the calcification of MOVAS-1 cells acting through the ERK1/2 pathway by 34–36%. We made similar observations when cathepsin-generated elastin peptides were added to ex vivo mouse aorta rings. Altogether, our data suggest that CatK-, S-, and V-mediated elastolysis directly accelerates the mineralization of the vascular matrix by the generation of nucleation points in the elastin matrix and indirectly by elastin-derived peptides stimulating the calcification by vascular smooth muscle cells. Both processes inversely protect against further extracellular matrix degradation.
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Affiliation(s)
- Pierre-Marie Andrault
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, V6T1Z3, Canada.,Centre for Blood Research, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Preety Panwar
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, V6T1Z3, Canada.,Centre for Blood Research, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Neil C W Mackenzie
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, V6T1Z3, Canada.,Centre for Blood Research, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Dieter Brömme
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, V6T1Z3, Canada. .,Centre for Blood Research, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada. .,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, BC, V6T1Z3, Canada.
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28
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Effect of collagenase-gelatinase ratio on the mechanical properties of a collagen fibril: a combined Monte Carlo-molecular dynamics study. Biomech Model Mechanobiol 2019; 18:1809-1819. [PMID: 31161353 PMCID: PMC6825035 DOI: 10.1007/s10237-019-01178-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 05/27/2019] [Indexed: 12/30/2022]
Abstract
Loading in cartilage is supported primarily by fibrillar collagen, and damage will impair the function of the tissue, leading to pathologies such as osteoarthritis. Damage is initiated by two types of matrix metalloproteinases, collagenase and gelatinase, that cleave and denature the collagen fibrils in the tissue. Experimental and modeling studies have revealed insights into the individual contributions of these two types of MMPs, as well as the mechanical response of intact fibrils and fibrils that have experienced random surface degradation. However, no research has comprehensively examined the combined influences of collagenases and gelatinases on collagen degradation nor studied the mechanical consequences of biological degradation of collagen fibrils. Such preclinical examinations are required to gain insights into understanding, treating, and preventing degradation-related cartilage pathology. To develop these insights, we use sequential Monte Carlo and molecular dynamics simulations to probe the effect of enzymatic degradation on the structure and mechanics of a single collagen fibril. We find that the mechanical response depends on the ratio of collagenase to gelatinase—not just the amount of lost fibril mass—and we provide a possible mechanism underlying this phenomenon. Overall, by characterizing the combined influences of collagenases and gelatinases on fibril degradation and mechanics at the preclinical research stage, we gain insights that may facilitate the development of targeted interventions to prevent the damage and loss of mechanical integrity that can lead to cartilage pathology.
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29
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Quantitative proteomic profiling of extracellular matrix and site-specific collagen post-translational modifications in an in vitro model of lung fibrosis. Matrix Biol Plus 2019; 1:100005. [PMID: 33543004 PMCID: PMC7852317 DOI: 10.1016/j.mbplus.2019.04.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 12/21/2022] Open
Abstract
Lung fibrosis is characterized by excessive deposition of extracellular matrix (ECM), in particular collagens, by fibroblasts in the interstitium. Transforming growth factor-β1 (TGF-β1) alters the expression of many extracellular matrix (ECM) components produced by fibroblasts, but such changes in ECM composition as well as modulation of collagen post-translational modification (PTM) levels have not been comprehensively investigated. Here, we performed mass spectrometry (MS)-based proteomics analyses to assess changes in the ECM deposited by cultured lung fibroblasts from idiopathic pulmonary fibrosis (IPF) patients upon stimulation with transforming growth factor β1 (TGF-β1). In addition to the ECM changes commonly associated with lung fibrosis, MS-based label-free quantification revealed profound effects on enzymes involved in ECM crosslinking and turnover as well as multiple positive and negative feedback mechanisms of TGF-β1 signaling. Notably, the ECM changes observed in this in vitro model correlated significantly with ECM changes observed in patient samples. Because collagens are subject to multiple PTMs with major implications in disease, we implemented a new bioinformatic platform to analyze MS data that allows for the comprehensive mapping and site-specific quantitation of collagen PTMs in crude ECM preparations. These analyses yielded a comprehensive map of prolyl and lysyl hydroxylations as well as lysyl glycosylations for 15 collagen chains. In addition, site-specific PTM analysis revealed novel sites of prolyl-3-hydroxylation and lysyl glycosylation in type I collagen. Interestingly, the results show, for the first time, that TGF-β1 can modulate prolyl-3-hydroxylation and glycosylation in a site-specific manner. Taken together, this proof of concept study not only reveals unanticipated TGF-β1 mediated regulation of collagen PTMs and other ECM components but also lays the foundation for dissecting their key roles in health and disease. The proteomic data has been deposited to the ProteomeXchange Consortium via the MassIVE partner repository with the data set identifier MSV000082958. Quantitative proteomics of TGF-β-induced changes in ECM composition and collagen PTM in pulmonary fibroblasts TGF-β promotes crosslinking and turnover as well as complex feedback mechanisms that alter fibroblast ECM homeostasis. A novel bioinformatic workflow for MS data analysis enabled global mapping and quantitation of known and novel collagen PTMs Quantitative assessment of prolyl-3-hydroxylation site occupancy and lysine-O-glycosylation microheterogeneity TGF-β1 modulates collagen PTMs in a site-specific manner that may favor collagen accumulation in lung fibrosis
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Key Words
- 3-HyP, 3-hydroxyproline
- 4-HyP, 4-hydroxyproline
- AGC, automatic gain control
- ANXA11, annexin A11
- BGN, biglycan
- COL1A1, collagen-I alpha 1 chain
- Collagen
- Collagen post-translational modifications
- DCN, decorin
- ECM, extracellular matrix
- Extracellular matrix
- FN1, fibronectin 1
- G-HyK, galactosylhydroxylysine
- GG-HyK, glucosylgalactosylhydroxylysine
- HyK, hydroxylysine
- HyP, hydroxyproline
- ILD, interstitial lung disease
- IPF, idiopathic pulmonary fibrosis
- LH, lysyl hydroxylase
- LOX(L), lysyl oxidase(-like)
- LTBP2, latent-transforming growth factor β -binding protein 2
- Lysyl glycosylation
- Lysyl hydroxylation
- P3H, prolyl-3-hydroxylase
- P4H, prolyl-4-hydroxylase
- PAI1, plasminogen activator inhibitor 1
- PCA, principal component analysis
- PLOD (LH), procollagen-lysine,2-oxoglutarate 5-dioxygenases (lysyl hydroxylases)
- PTM, post-translational modification
- Prolyl hydroxylation
- Pulmonary fibrosis
- SEMA7A, semaphorin 7a
- TGF-β, transforming growth factor β
- TGM2, transglutaminase 1
- Transforming growth factor-β
- VCAN, versican
- Xaa, Xaa position in the Gly-Xaa-Yaa repeat in triple-helical collagen
- Yaa, Yaa position in the Gly-Xaa-Yaa repeat in triple-helical collagen
- α-SMA, α-smooth muscle actin
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Parks AN, Nahata J, Edouard NE, Temenoff JS, Platt MO. Sequential, but not Concurrent, Incubation of Cathepsin K and L with Type I Collagen Results in Extended Proteolysis. Sci Rep 2019; 9:5399. [PMID: 30931961 PMCID: PMC6443789 DOI: 10.1038/s41598-019-41782-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 03/13/2019] [Indexed: 01/13/2023] Open
Abstract
Degradation of extracellular matrix (ECM) during tendinopathy is, in part, mediated by the collagenolytic cathepsin K (catK) and cathepsin L (catL), with a temporal component to their activity. The objective of this study was to determine how catK and catL act in concert or in conflict to degrade collagen and tendon ECM during tissue degeneration. To do so, type I collagen gels or ECM extracted from apolipoprotein E deficient mouse Achilles tendons were incubated with catK and catL either concurrently or sequentially, incubating catK first, then catL after a delayed time period. Sequential incubation of catK then catL caused greater degradation of substrates over concurrent incubation, and of either cathepsin alone. Zymography showed there were reduced amounts of active enzymes when co-incubated, indicating that cannibalism, or protease-on-protease degradation between catK and catL was occurring, but incubation with ECM could distract from these interactions. CatK alone was sufficient to quickly degrade tendon ECM, but catL was not, requiring the presence of catK for degradation. Together, these data identify cooperative and conflicting actions of cathepsin mediated collagen matrix degradation by considering interactive effects of multiple proteases during tissue degeneration.
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Affiliation(s)
- Akia N Parks
- W.H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Juhi Nahata
- W.H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Naomi-Eliana Edouard
- Mathematics Department, Spelman College, 350 Spelman Ln, Atlanta, GA, 30314, USA
| | - Johnna S Temenoff
- W.H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Dr NW, Atlanta, GA, 30332, USA.,Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Manu O Platt
- W.H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Dr NW, Atlanta, GA, 30332, USA. .,Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Dr NW, Atlanta, GA, 30332, USA.
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31
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Faisal TR, Adouni M, Dhaher YY. The effect of fibrillar degradation on the mechanics of articular cartilage: a computational model. Biomech Model Mechanobiol 2019; 18:733-751. [DOI: 10.1007/s10237-018-01112-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 12/20/2018] [Indexed: 12/21/2022]
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32
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Pirapaharan DC, Søe K, Panwar P, Madsen JS, Bergmann ML, Overgaard M, Brömme D, Delaisse JM. A Mild Inhibition of Cathepsin K Paradoxically Stimulates the Resorptive Activity of Osteoclasts in Culture. Calcif Tissue Int 2019; 104:92-101. [PMID: 30194476 DOI: 10.1007/s00223-018-0472-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 08/30/2018] [Indexed: 12/24/2022]
Abstract
Cathepsin K (CatK) inhibition allows reducing bone resorption with specific advantages compared to the existing anti-osteoporosis drugs. Its clinical use appears even more promising with the recent development of ectosteric inhibitors. A confusing observation, however, is that a low dose of the active site CatK inhibitor odanacatib (ODN) was reported to decrease bone mineral density and increase serum levels of the bone resorption marker carboxy-terminal collagen crosslinks (CTX). The present study provides a possible explanation for this paradox. The resorptive activity of human osteoclasts seeded on bone slices was inhibited when subjected to ODN at doses of 20 nM, but about 100-fold lower doses induced a significant increase in CTX levels and in eroded surface (12 repeats). This low-dose-induced stimulation was prevented by inhibition of non-CatK cysteine proteinases, thereby indicating that the stimulation results from an interplay between CatK and other cysteine proteinases. Effective interplay between these proteinases was also shown in enzymatic assays where the CatK-mediated degradation of collagen was enhanced upon addition of cathepsins B or L. Furthermore, extracts of osteoclasts subjected to a low dose of ODN showed higher levels of cathepsin B compared with extracts of control osteoclasts. In conclusion, the low-dose-induced stimulation of resorption observed in the clinical study can be reproduced in osteoclasts cultured in the absence of any other cell. Our data support an osteoclast-intrinsic mechanism where a mild inhibition of CatK results in increased levels of other proteinases contributing to the collagen degradation process.
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Affiliation(s)
- Dinisha Cyril Pirapaharan
- Department of Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, 7100, Vejle, Denmark
| | - Kent Søe
- Department of Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, 7100, Vejle, Denmark.
| | - Preety Panwar
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Jonna Skov Madsen
- Department of Biochemistry and Immunology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, 7100, Vejle, Denmark
| | - Marianne Lerbæk Bergmann
- Department of Biochemistry and Immunology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, 7100, Vejle, Denmark
| | - Martin Overgaard
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Dieter Brömme
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Jean-Marie Delaisse
- Department of Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, 7100, Vejle, Denmark.
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Vizovišek M, Fonović M, Turk B. Cysteine cathepsins in extracellular matrix remodeling: Extracellular matrix degradation and beyond. Matrix Biol 2019; 75-76:141-159. [DOI: 10.1016/j.matbio.2018.01.024] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/14/2018] [Accepted: 01/29/2018] [Indexed: 12/21/2022]
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34
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Cathepsin K-deficiency impairs mouse cardiac function after myocardial infarction. J Mol Cell Cardiol 2018; 127:44-56. [PMID: 30465799 DOI: 10.1016/j.yjmcc.2018.11.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/08/2018] [Accepted: 11/16/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Extracellular matrix metabolism and cardiac cell death participate centrally in myocardial infarction (MI). This study tested the roles of collagenolytic cathepsin K (CatK) in post-MI left ventricular remodeling. METHODS AND RESULTS Patients with acute MI had higher plasma CatK levels (20.49 ± 7.07 pmol/L, n = 26) than those in subjects with stable angina pectoris (8.34 ± 1.66 pmol/L, n = 28, P = .01) or those without coronary heart disease (6.63 ± 0.84 pmol/L, n = 93, P = .01). CatK protein expression increases in mouse hearts at 7 and 28 days post-MI. Immunofluorescent staining localized CatK expression in cardiomyocytes, endothelial cells, fibroblasts, macrophages, and CD4+ T cells in infarcted mouse hearts at 7 days post-MI. To probe the direct participation of CatK in MI, we produced experimental MI in CatK-deficient mice (Ctsk-/-) and their wild-type (Ctsk+/+) littermates. CatK-deficiency yielded worsened cardiac function at 7 and 28 days post-MI, compared to Ctsk+/+ littermates (fractional shortening percentage: 5.01 ± 0.68 vs. 8.62 ± 1.04, P < .01, 7 days post-MI; 4.32 ± 0.52 vs. 7.60 ± 0.82, P < .01, 28 days post-MI). At 7 days post-MI, hearts from Ctsk-/- mice contained less CatK-specific type-I collagen fragments (10.37 ± 1.91 vs. 4.60 ± 0.49 ng/mg tissue extract, P = .003) and more fibrosis (1.67 ± 0.93 vs. 0.69 ± 0.20 type-III collagen positive area percentage, P = .01; 14.25 ± 4.12 vs. 6.59 ± 0.79 α-smooth muscle actin-positive area percentage, P = .016; and 0.82 ± 0.06 vs. 0.31 ± 0.08 CD90-positive area percentage, P = .008) than those of Ctsk+/+ mice. Immunostaining demonstrated that CatK-deficiency yielded elevated cardiac cell death but reduced cardiac cell proliferation. In vitro studies supported a role of CatK in cardiomyocyte survival. CONCLUSION Plasma CatK levels are increased in MI patients. Heart CatK expression is also elevated post-MI, but CatK-deficiency impairs post-MI cardiac function in mice by increasing myocardial fibrosis and cardiomyocyte death.
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Collagen degradation in tuberculosis pathogenesis: the biochemical consequences of hosting an undesired guest. Biochem J 2018; 475:3123-3140. [PMID: 30315001 DOI: 10.1042/bcj20180482] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/03/2018] [Accepted: 09/07/2018] [Indexed: 12/15/2022]
Abstract
The scenario of chemical reactions prompted by the infection by Mycobacterium tuberculosis is huge. The infection generates a localized inflammatory response, with the recruitment of neutrophils, monocytes, and T-lymphocytes. Consequences of this immune reaction can be the eradication or containment of the infection, but these events can be deleterious to the host inasmuch as lung tissue can be destroyed. Indeed, a hallmark of tuberculosis (TB) is the formation of lung cavities, which increase disease development and transmission, as they are sites of high mycobacterial burden. Pulmonary cavitation is associated with antibiotic failure and the emergence of antibiotic resistance. For cavities to form, M. tuberculosis induces the overexpression of host proteases, like matrix metalloproteinases and cathepsin, which are secreted from monocyte-derived cells, neutrophils, and stromal cells. These proteases destroy the lung parenchyma, in particular the collagen constituent of the extracellular matrix (ECM). Namely, in an attempt to destroy infected cells, the immune reactions prompted by mycobacterial infections induce the destruction of vital regions of the lung, in a process that can become fatal. Here, we review structure and function of the main molecular actors of ECM degradation due to M. tuberculosis infection and the proposed mechanisms of tissue destruction, mainly attacking fibrillar collagen. Importantly, enzymes responsible for collagen destruction are emerging as key targets for adjunctive therapies to limit immunopathology in TB.
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Liu ZQ, Tuo FY, Song L, Liu YX, Dong XP, Li DM, Zhou DY, Shahidi F. Action of trypsin on structural changes of collagen fibres from sea cucumber (Stichopus japonicus). Food Chem 2018; 256:113-118. [DOI: 10.1016/j.foodchem.2018.02.117] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 02/07/2018] [Accepted: 02/21/2018] [Indexed: 11/29/2022]
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Panwar P, Law S, Jamroz A, Azizi P, Zhang D, Ciufolini M, Brömme D. Tanshinones that selectively block the collagenase activity of cathepsin K provide a novel class of ectosteric antiresorptive agents for bone. Br J Pharmacol 2018; 175:902-923. [PMID: 29278432 DOI: 10.1111/bph.14133] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 11/24/2017] [Accepted: 11/29/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND PURPOSE Attempts to generate active site-directed cathepsin K (CatK) inhibitors for the treatment of osteoporosis have failed because of side effects. We have previously shown that an ectosteric tanshinone CatK inhibitor isolated from Salvia miltiorrhiza blocked, selectively, the collagenase activity of CatK, without affecting the active site and demonstrated its bone-preserving activity in vivo. Here, we have characterize the antiresorptive potential of other tanshinones, which may provide a scaffold for side effect-free CatK inhibitors. EXPERIMENTAL APPROACH Thirty-one tanshinones were tested for their activity against CatK in enzymic and cell-based assays. The inhibitory potency against triple helical and fibrillar collagen degradation was determined in enzymic assays, by scanning electron microscopy and mechanical strength measurements. Human osteoclast assays were used to determine the effects of the inhibitors on bone resorption, its reversibility and osteoclastogenesis. Binding sites were characterized by molecular docking. KEY RESULTS Twelve compounds showed highly effective anti-collagenase activity and protected collagen against destruction and mechanical instability without inhibiting the hydrolysis of non-collagenous substrates. Six compounds were highly effective in osteoclast bone resorption assays with IC50 values of <500 nM. None of these tanshinones had effects on cell viability, reversibility of bone resorption inhibition and osteoclastogenesis. The core pharmacophore of the tanshinones appears to be the three-ring system with either a para- or ortho-quinone entity. CONCLUSIONS AND IMPLICATIONS Our study identified several potent ectosteric antiresorptive CatK inhibitors from the medicinal plant, S. miltiorrhiza, which may avoid side effects seen with active site-directed inhibitors in clinical trials.
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Affiliation(s)
- Preety Panwar
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada.,Centre for Blood Research, Vancouver, BC, Canada.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Simon Law
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada.,Centre for Blood Research, Vancouver, BC, Canada.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Andrew Jamroz
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Pouya Azizi
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Dongwei Zhang
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada.,Diabetes Research Centre, Beijing University of Chinese Medicine, Beijing, China
| | - Marco Ciufolini
- Department of Chemistry, University of British Columbia, Vancouver, BC, Canada
| | - Dieter Brömme
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada.,Centre for Blood Research, Vancouver, BC, Canada.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
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Structural and biochemical changes in dermis of sea cucumber (Stichopus japonicus) during autolysis in response to cutting the body wall. Food Chem 2018; 240:1254-1261. [DOI: 10.1016/j.foodchem.2017.08.071] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 07/19/2017] [Accepted: 08/21/2017] [Indexed: 12/11/2022]
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39
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Nallasamy S, Akins M, Tetreault B, Luby-Phelps K, Mahendroo M. Distinct reorganization of collagen architecture in lipopolysaccharide-mediated premature cervical remodeling. Biol Reprod 2018; 98:63-74. [PMID: 29161343 PMCID: PMC5803761 DOI: 10.1093/biolre/iox155] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 11/10/2017] [Accepted: 11/16/2017] [Indexed: 11/13/2022] Open
Abstract
Previous work has identified divergent mechanisms by which cervical remodeling is achieved in preterm birth (PTB) induced by hormone withdrawal (mifepristone) or lipopolysaccharide (LPS). Our current study aims to document how collagen architecture is modified to achieve premature cervical remodeling in mice treated with LPS as a model of infection-induced inflammation. Cervices were collected on gestation day (d) 15 from mice with premature cervical ripening induced by LPS and compared to d15 and d18 controls as well as a hormone withdrawal PTB model. Second harmonic generation (SHG) and electron microscopy were utilized for visualization of collagen morphology and ultrastructure. LPS-mediated premature cervical ripening is characterized by unique structural changes in collagen fiber morphology. LPS treatment increased the interfibrillar spacing of collagen fibrils. A preferential disruption of collagen fiber architecture in the subepithelial region compared to midstroma region was evidenced by increased pores lacking collagen signal in SHG images in the LPS-treated mice. Coinciding with this alteration, the infiltration of neutrophils was concentrated in the subepithelial stromal region as compared to midstromal region implicating the potential role of immune cells to extracellular matrix reorganization in inflammation-induced preterm cervical ripening. The current study demonstrates a preferential disorganization of collagen interfibrillar spacing and collagen fiber structure in LPS-mediated ripening.
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Affiliation(s)
- Shanmugasundaram Nallasamy
- Department of Obstetrics and Gynecology and Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Meredith Akins
- Department of Obstetrics and Gynecology and Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Breanna Tetreault
- Department of Obstetrics and Gynecology and Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Kate Luby-Phelps
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Mala Mahendroo
- Department of Obstetrics and Gynecology and Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Panwar P, Butler GS, Jamroz A, Azizi P, Overall CM, Brömme D. Aging-associated modifications of collagen affect its degradation by matrix metalloproteinases. Matrix Biol 2018. [DOI: 10.1016/j.matbio.2017.06.004] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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41
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Panwar P, Xue L, Søe K, Srivastava K, Law S, Delaisse JM, Brömme D. An Ectosteric Inhibitor of Cathepsin K Inhibits Bone Resorption in Ovariectomized Mice. J Bone Miner Res 2017; 32:2415-2430. [PMID: 28745432 DOI: 10.1002/jbmr.3227] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/19/2017] [Accepted: 07/22/2017] [Indexed: 12/13/2022]
Abstract
The potent cathepsin K (CatK) inhibitor, Tanshinone IIA sulfonic sodium (T06), was tested for its in vitro and in vivo antiresorptive activities. T06 binds in an ectosteric site of CatK remote from its active site and selectively inhibits collagen degradation with an IC50 value of 2.7 ± 0.2 μM (CatK:T06 molar ratio of 1:5). However, it does not suppress fluorogenic peptide cleavage and gelatinolysis at a 2500-fold molar excess. Contrary to active site-directed CatK inhibitors, such as odanacatib, T06 suppresses bone resorption in both human and mouse osteoclasts equally well (IC50 value for human and mouse osteoclasts: 237 ± 60 nM and 245 ± 55 nM, respectively) and its antiresorptive activity is fully reversible in both cell types. Moreover, T06 affects neither the metabolic activity of osteoclasts nor osteoclastogenesis. In in vivo studies, 40 mg T06/kg/d given to 12-week-old ovariectomized (OVX) mice for 3 months reduced plasma CTx-1 by 20% and increased osteoblast numbers and plasma P1NP by ∼28% when compared with the OVX control. μCT analysis of T06-treated OVX mice showed a 35% increase in bone mineral density and other femoral trabecular bone parameters when compared with OVX animals. T06 did not alter the number of osteoclasts, had no estrogenic effect on the uterus, did not change plasma estradiol levels, and did not inhibit fibroblast-mediated TGF-ß1 processing or degradation and cognitive functions in OVX mice. This study indicates that the ectosteric inhibitor, T06, is a selective antiresorptive CatK inhibitor that may overcome the shortcomings of side effect-prone active site-directed drugs, which all failed in clinical trials. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Preety Panwar
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada.,Centre for Blood Research, University of British Columbia, Vancouver, Canada.,Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle, Denmark.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Liming Xue
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada.,Centre for Blood Research, University of British Columbia, Vancouver, Canada
| | - Kent Søe
- Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle, Denmark
| | - Kamini Srivastava
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada.,Centre for Blood Research, University of British Columbia, Vancouver, Canada
| | - Simon Law
- Centre for Blood Research, University of British Columbia, Vancouver, Canada.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Jean-Marie Delaisse
- Clinical Cell Biology, Vejle Hospital/Lillebaelt Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle, Denmark
| | - Dieter Brömme
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada.,Centre for Blood Research, University of British Columbia, Vancouver, Canada.,Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia, Vancouver, Canada
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Malaspina DC, Szleifer I, Dhaher Y. Mechanical properties of a collagen fibril under simulated degradation. J Mech Behav Biomed Mater 2017; 75:549-557. [DOI: 10.1016/j.jmbbm.2017.08.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 08/10/2017] [Accepted: 08/15/2017] [Indexed: 10/19/2022]
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43
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Tatara Y, Suto S, Itoh K. Novel roles of glycosaminoglycans in the degradation of type I collagen by cathepsin K. Glycobiology 2017; 27:1089-1098. [DOI: 10.1093/glycob/cwx083] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 10/02/2017] [Indexed: 11/14/2022] Open
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44
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Effect of conditioning solutions containing ferric chloride on dentin bond strength and collagen degradation. Dent Mater 2017; 33:1093-1102. [DOI: 10.1016/j.dental.2017.07.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 07/07/2017] [Accepted: 07/08/2017] [Indexed: 11/18/2022]
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45
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Goldstein MR, Mascitelli L. Might tumor secreted cathepsin proteases leave specific molecular signals in skin, hair and nails years before a cancer becomes clinically apparent? Med Hypotheses 2017; 103:62-63. [PMID: 28571813 DOI: 10.1016/j.mehy.2017.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 04/19/2017] [Indexed: 10/19/2022]
Abstract
X-ray fiber diffraction analysis (FDA) of the fibrous macromolecules in hair, nails and skin has been shown to non-invasively diagnose various cancers, at sites remote from the cancer, years before the cancer becomes clinically apparent. The technology is not widely accepted because of reproducibility issues (that can be easily resolved) and lack of an explanation as to how a clinically unapparent tumor can leave molecular "signatures" at remote sites. However, there is evidence that tumor-specific cathepsins (lysosomal proteases) circulate systemically long before a cancer is clinically apparent. As such, we hypothesize that cathepsins, by virtue of their proteolytic activity, impart molecular changes in tissues remote from the primary tumor. These subtle molecular changes, which are specific for various tumors, can be readily detected by FDA of hair, nails and skin. We call for more research in the utility of FDA and tumor specific cathepsins for the early and non-invasive diagnosis of various malignancies.
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Affiliation(s)
- Mark R Goldstein
- NCH Physician Group, 1845 Veterans Park Drive, Suite 110, Naples, FL 34109, USA.
| | - Luca Mascitelli
- Comando Brigata Alpina "Julia"/Multinational Land Force, Medical Service, Via S. Agostino, Udine 33100, Italy.
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46
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Effects of endogenous cysteine proteinases on structures of collagen fibres from dermis of sea cucumber (Stichopus japonicus). Food Chem 2017; 232:10-18. [PMID: 28490052 DOI: 10.1016/j.foodchem.2017.03.155] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 02/10/2017] [Accepted: 03/29/2017] [Indexed: 11/20/2022]
Abstract
Autolysis of sea cucumber, caused by endogenous enzymes, leads to postharvest quality deterioration of sea cucumber. However, the effects of endogenous proteinases on structures of collagen fibres, the major biologically relevant substrates in the body wall of sea cucumber, are less clear. Collagen fibres were prepared from the dermis of sea cucumber (Stichopus japonicus), and the structural consequences of degradation of the collagen fibres caused by endogenous cysteine proteinases (ECP) from Stichopus japonicus were examined. Scanning electron microscopic images showed that ECP caused partial disaggregation of collagen fibres into collagen fibrils by disrupting interfibrillar proteoglycan bridges. Differential scanning calorimetry and Fourier transform infrared analysis revealed increased structural disorder of fibrillar collagen caused by ECP. SDS-PAGE and chemical analysis indicated that ECP can liberate glycosaminoglycan, hydroxyproline and collagen fragments from collagen fibres. Thus ECP can cause disintegration of collagen fibres by degrading interfibrillar proteoglycan bridges.
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47
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Weiss-Sadan T, Gotsman I, Blum G. Cysteine proteases in atherosclerosis. FEBS J 2017; 284:1455-1472. [PMID: 28207191 DOI: 10.1111/febs.14043] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 01/04/2017] [Accepted: 02/13/2017] [Indexed: 12/22/2022]
Abstract
Atherosclerosis predisposes patients to cardiovascular diseases, such as myocardial infarction and stroke. Instigation of vascular injury is triggered by retention of lipids and inflammatory cells in the vascular endothelium. Whereas these vascular lesions develop in young adults and are mostly considered harmless, over time persistent inflammatory and remodeling processes will ultimately damage the arterial wall and cause a thrombotic event due to exposure of tissue factors into the lumen. Evidence from human tissues and preclinical animal models has clearly established the role of cathepsin cysteine proteases in the development and progression of vascular lesions. Hence, understanding the function of cathepsins in atherosclerosis is important for developing novel therapeutic strategies and advanced point of care diagnostics. In this review we will describe the roles of cysteine cathepsins in different cellular process that become dysfunctional in atherosclerosis, such as lipid metabolism, inflammation and apoptosis, and how they contribute to arterial remodeling and atherogenesis. Finally, we will explore new horizons in protease molecular imaging, which may potentially become a surrogate marker to identify future cardiovascular events.
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Affiliation(s)
- Tommy Weiss-Sadan
- The Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - Israel Gotsman
- Heart Institute, Hadassah University Hospital, Jerusalem, Israel
| | - Galia Blum
- The Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University, Jerusalem, Israel
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48
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Green EC, Zhang Y, Li H, Minus ML. Gel-spinning of mimetic collagen and collagen/nano-carbon fibers: Understanding multi-scale influences on molecular ordering and fibril alignment. J Mech Behav Biomed Mater 2017; 65:552-564. [DOI: 10.1016/j.jmbbm.2016.08.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 08/15/2016] [Indexed: 11/16/2022]
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49
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Bunderson-Schelvan M, Holian A, Hamilton RF. Engineered nanomaterial-induced lysosomal membrane permeabilization and anti-cathepsin agents. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2017; 20:230-248. [PMID: 28632040 PMCID: PMC6127079 DOI: 10.1080/10937404.2017.1305924] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Engineered nanomaterials (ENMs), or small anthropogenic particles approximately < 100 nm in size and of various shapes and compositions, are increasingly incorporated into commercial products and used for industrial and medical purposes. There is an exposure risk to both the population at large and individuals in the workplace with inhalation exposures to ENMs being a primary concern. Further, there is increasing evidence to suggest that certain ENMs may represent a significant health risk, and many of these ENMs exhibit distinct similarities with other particles and fibers that are known to induce adverse health effects, such as asbestos, silica, and particulate matter (PM). Evidence regarding the importance of lysosomal membrane permeabilization (LMP) and release of cathepsins in ENM toxicity has been accumulating. The aim of this review was to describe our current understanding of the mechanisms leading to ENM-associated pathologies, including LMP and the role of cathepsins with a focus on inflammation. In addition, anti-cathepsin agents, some of which have been tested in clinical trials and may prove useful for ameliorating the harmful effects of ENM exposure, are examined.
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Affiliation(s)
| | - Andrij Holian
- Center for Environmental Health Sciences, University of Montana, Missoula, MT 59812, USA
| | - Raymond F. Hamilton
- Center for Environmental Health Sciences, University of Montana, Missoula, MT 59812, USA
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Early cathepsin K degradation of type II collagen in vitro and in vivo in articular cartilage. Osteoarthritis Cartilage 2016; 24:1461-9. [PMID: 27049030 DOI: 10.1016/j.joca.2016.03.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 01/09/2016] [Accepted: 03/25/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To characterize the initial events in the cleavage of type II collagen mediated by cathepsin K and demonstrate the presence of the resulting products in human and equine articular osteoarthritic cartilage. DESIGN Equine type II collagen was digested with cathepsin K and the cleavage products characterized by mass spectrometry. Anti-neoepitope antibodies were raised against the most N-terminal cleavage products and used to investigate the progress of collagen cleavage, in vitro, and the presence of cathepsin K-derived products in equine and human osteoarthritic cartilage. RESULTS Six cathepsin K cleavage sites distributed throughout the triple helical region were identified in equine type II collagen. Most of the cleavages occurred following a hydroxyproline residue. The most N-terminal site was within three residues of the previously identified site in bovine type II collagen. Western blotting using anti-neoepitope antibodies showed that the initial cleavages occurred at the N-terminal sites and this was followed by more extensive degradation resulting in products too small to be resolved by SDS gel electrophoresis. Immunohistochemical staining of cartilage sections from equine or human osteoarthritic joints showed staining in lesional areas which was not observed in non-arthritic sites. CONCLUSIONS Cathepsin K cleaves triple helical collagen by erosion from the N-terminus and with subsequent progressive cleavages. The liberated fragments can be detected in osteoarthritic cartilage and may represent useful biomarkers for disease activity.
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