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Wimmer B, Schernthaner J, Edobor G, Friedrich A, Poeltner K, Temaj G, Wimmer M, Kronsteiner E, Pichler M, Gercke H, Huber R, Kaefer N, Rinnerthaler M, Karl T, Krauß J, Mohr T, Gerner C, Hintner H, Breitenbach M, Bauer JW, Rakers C, Kuhn D, von Hagen J, Müller N, Rathner A, Breitenbach-Koller H. RiboScreen TM Technology Delivers a Ribosomal Target and a Small-Molecule Ligand for Ribosome Editing to Boost the Production Levels of Tropoelastin, the Monomeric Unit of Elastin. Int J Mol Sci 2024; 25:8430. [PMID: 39125999 PMCID: PMC11312584 DOI: 10.3390/ijms25158430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 07/28/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
Elastin, a key structural protein essential for the elasticity of the skin and elastogenic tissues, degrades with age. Replenishing elastin holds promise for anti-aging cosmetics and the supplementation of elastic activities of the cardiovascular system. We employed RiboScreenTM, a technology for identifying molecules that enhance the production of specific proteins, to target the production of tropoelastin. We make use of RiboScreenTM in two crucial steps: first, to pinpoint a target ribosomal protein (TRP), which acts as a switch to increase the production of the protein of interest (POI), and second, to identify small molecules that activate this ribosomal protein switch. Using RiboScreenTM, we identified ribosomal protein L40, henceforth eL40, as a TRP switch to boost tropoelastin production. Drug discovery identified a small-molecule hit that binds to eL40. In-cell treatment demonstrated activity of the eL40 ligand and delivered increased tropoelastin production levels in a dose-dependent manner. Thus, we demonstrate that RiboScreenTM can successfully identify a small-molecule hit capable of selectively enhancing tropoelastin production. This compound has the potential to be developed for topical or systemic applications to promote skin rejuvenation and to supplement elastic functionality within the cardiovascular system.
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Affiliation(s)
- Bjoern Wimmer
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Jan Schernthaner
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Genevieve Edobor
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Andreas Friedrich
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Katharina Poeltner
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Gazmend Temaj
- Human Genetics, Faculty of Pharmacy, College UBT, 10000 Pristina, Kosovo;
| | - Marlies Wimmer
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Elli Kronsteiner
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Mara Pichler
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Hanna Gercke
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Ronald Huber
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Niklas Kaefer
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Mark Rinnerthaler
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Thomas Karl
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Jan Krauß
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Thomas Mohr
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (T.M.); (C.G.)
| | - Christopher Gerner
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (T.M.); (C.G.)
- Join Metabolome Facility, University of Vienna, Waehringer Str. 38, 1090 Vienna, Austria
| | - Helmut Hintner
- Department of Dermatology and Allergology, University Hospital Salzburg, Muellner Hauptstraße 48, 5020 Salzburg, Austria; (H.H.); (J.W.B.)
| | - Michael Breitenbach
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
| | - Johann W. Bauer
- Department of Dermatology and Allergology, University Hospital Salzburg, Muellner Hauptstraße 48, 5020 Salzburg, Austria; (H.H.); (J.W.B.)
| | - Christin Rakers
- Merck KGaA, Discovery & Development Technologies, Frankfurter Staße 250, 64293 Darmstadt, Germany (D.K.)
| | - Daniel Kuhn
- Merck KGaA, Discovery & Development Technologies, Frankfurter Staße 250, 64293 Darmstadt, Germany (D.K.)
| | - Joerg von Hagen
- Merck KGaA Healthcare, Frankfurter Straße 250, 64293 Darmstadt, Germany;
- ryon-Greentech Accelerator, Mainzer Straße 41, 64579 Gernsheim, Germany
| | - Norbert Müller
- Institute of Biochemistry, Johannes Kepler University, Altenbergerstraße 69, 4040 Linz, Austria;
- Department of Chemistry, Faculty of Science, University of South Bohemia in Českých Budějovicích, Branišovská 1760, 370 05 České Budějovice, Czech Republic
| | - Adriana Rathner
- Institute of Biochemistry, Johannes Kepler University, Altenbergerstraße 69, 4040 Linz, Austria;
| | - Hannelore Breitenbach-Koller
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (B.W.); (J.S.); (G.E.); (A.F.); (K.P.); (M.W.); (E.K.); (M.P.); (H.G.); (R.H.); (M.R.); (T.K.); (J.K.); (M.B.)
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Krymchenko R, Coşar Kutluoğlu G, van Hout N, Manikowski D, Doberenz C, van Kuppevelt TH, Daamen WF. Elastogenesis in Focus: Navigating Elastic Fibers Synthesis for Advanced Dermal Biomaterial Formulation. Adv Healthc Mater 2024:e2400484. [PMID: 38989717 DOI: 10.1002/adhm.202400484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/31/2024] [Indexed: 07/12/2024]
Abstract
Elastin, a fibrous extracellular matrix (ECM) protein, is the main component of elastic fibers that are involved in tissues' elasticity and resilience, enabling them to undergo reversible extensibility and to endure repetitive mechanical stress. After wounding, it is challenging to regenerate elastic fibers and biomaterials developed thus far have struggled to induce its biosynthesis. This review provides a comprehensive summary of elastic fibers synthesis at the cellular level and its implications for biomaterial formulation, with a particular focus on dermal substitutes. The review delves into the intricate process of elastogenesis by cells and investigates potential triggers for elastogenesis encompassing elastin-related compounds, ECM components, and other molecules for their potential role in inducing elastin formation. Understanding of the elastogenic processes is essential for developing biomaterials that trigger not only the synthesis of the elastin protein, but also the formation of a functional and branched elastic fiber network.
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Affiliation(s)
- Roman Krymchenko
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Gizem Coşar Kutluoğlu
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
- MedSkin Solutions Dr. Suwelack AG, 48727, Billerbeck, Germany
| | - Noor van Hout
- Department of Dermatology, Radboud university medical center, Nijmegen, 6525 GA, The Netherlands
| | | | | | - Toin H van Kuppevelt
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Willeke F Daamen
- Department of Medical BioSciences, Research Institute for Medical Innovation, Radboud university medical center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
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Cesanelli L, Minderis P, Degens H, Satkunskiene D. Passive mechanical properties of adipose tissue and skeletal muscle from C57BL/6J mice. J Mech Behav Biomed Mater 2024; 155:106576. [PMID: 38744119 DOI: 10.1016/j.jmbbm.2024.106576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/01/2024] [Accepted: 05/08/2024] [Indexed: 05/16/2024]
Abstract
Skeletal muscle and adipose tissue are characterized by unique structural features finely tuned to meet specific functional demands. In this study, we investigated the passive mechanical properties of soleus (SOL), extensor digitorum longus (EDL) and diaphragm (DIA) muscles, as well as subcutaneous (SAT), visceral (VAT) and brown (BAT) adipose tissues from 13 C57BL/6J mice. Thereto, alongside stress-relaxation assessments we subjected isolated muscles and adipose tissues (ATs) to force-extension tests up to 10% and 30% of their optimal length, respectively. Peak passive stress was highest in the DIA, followed by the SOL and lowest in the EDL (p < 0.05). SOL displayed also the highest Young's modulus and hysteresis among muscles (p < 0.05). BAT demonstrated highest peak passive stress and Young's modulus followed by VAT (p < 0.05), while SAT showed the highest hysteresis (p < 0.05). When comparing data across all six biological specimens at fixed passive force intervals (i.e., 20-40 and 50-70 mN), skeletal muscles exhibited significantly higher peak stresses and strains than ATs (p < 0.05). Young's modulus was higher in skeletal muscles than in ATs (p < 0.05). Muscle specimens exhibited slower force relaxation in the first phase compared to ATs (p < 0.05), while there was no significant difference in behavior between muscles and AT in the second phase of relaxation. The study revealed distinctive mechanical behaviors specific to different tissues, and even between different muscles and ATs. These variations in mechanical properties are likely such to optimize the specific functions performed by each biological tissue.
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Affiliation(s)
- L Cesanelli
- Institute of Sport Science and Innovations, Lithuanian Sports University, Kaunas, Lithuania; Department of Health Promotion and Rehabilitation, Lithuanian Sports University, Kaunas, Lithuania.
| | - P Minderis
- Institute of Sport Science and Innovations, Lithuanian Sports University, Kaunas, Lithuania
| | - H Degens
- Institute of Sport Science and Innovations, Lithuanian Sports University, Kaunas, Lithuania; Department of Life Sciences, Manchester Metropolitan University, Manchester, UK
| | - D Satkunskiene
- Department of Health Promotion and Rehabilitation, Lithuanian Sports University, Kaunas, Lithuania
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Murphy MP, Hunt D, Herron M, McDonnell J, Alshuhoumi R, McGarvey LP, Fabré A, O’Brien H, McCarthy C, Martin SL, McElvaney NG, Reeves EP. Neutrophil-Derived Peptidyl Arginine Deiminase Activity Contributes to Pulmonary Emphysema by Enhancing Elastin Degradation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:75-85. [PMID: 38758115 PMCID: PMC11212725 DOI: 10.4049/jimmunol.2300658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 04/12/2024] [Indexed: 05/18/2024]
Abstract
In chronic obstructive pulmonary disease (COPD), inflammation gives rise to protease-mediated degradation of the key extracellular matrix protein, elastin, which causes irreversible loss of pulmonary function. Intervention against proteolysis has met with limited success in COPD, due in part to our incomplete understanding of the mechanisms that underlie disease pathogenesis. Peptidyl arginine deiminase (PAD) enzymes are a known modifier of proteolytic susceptibility, but their involvement in COPD in the lungs of affected individuals is underexplored. In this study, we showed that enzyme isotypes PAD2 and PAD4 are present in primary granules of neutrophils and that cells from people with COPD release increased levels of PADs when compared with neutrophils of healthy control subjects. By examining bronchoalveolar lavage and lung tissue samples of patients with COPD or matched smoking and nonsmoking counterparts with normal lung function, we reveal that COPD presents with markedly increased airway concentrations of PADs. Ex vivo, we established citrullinated elastin in the peripheral airways of people with COPD, and in vitro, elastin citrullination significantly enhanced its proteolytic degradation by serine and matrix metalloproteinases, including neutrophil elastase and matrix metalloprotease-12, respectively. These results provide a mechanism by which neutrophil-released PADs affect lung function decline, indicating promise for the future development of PAD-based therapeutics for preserving lung function in patients with COPD.
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Affiliation(s)
- Mark P. Murphy
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
| | - David Hunt
- Pulmonary Clinical Science, Department of Anaesthesia and Critical Care Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
| | - Malcolm Herron
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
| | - Jake McDonnell
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
| | - Rashed Alshuhoumi
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
| | - Lorcan P. McGarvey
- Wellcome–Wolfson Centre for Experimental Medicine, School of Medicine Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, United Kingdom
- Department of Respiratory Medicine, Royal Victoria Hospital; Belfast Health Social Care Trust, Belfast, United Kingdom
| | - Aurelie Fabré
- Department of Histopathology, St. Vincent’s University Hospital and Department of Medicine, University College Dublin, Dublin, Ireland
- School of Medicine, University College Dublin, Dublin, Ireland
| | - Helen O’Brien
- Department of Respiratory Medicine, St. Vincent’s University Hospital, Elm Park, Dublin, Ireland
| | - Cormac McCarthy
- School of Medicine, University College Dublin, Dublin, Ireland
- Department of Respiratory Medicine, St. Vincent’s University Hospital, Elm Park, Dublin, Ireland
| | - S. Lorraine Martin
- Biomolecular Sciences Research Group, School of Pharmacy, Queen’s University Belfast, Belfast, United Kingdom
| | - Noel G. McElvaney
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
| | - Emer P. Reeves
- Pulmonary Clinical Science, Department of Anaesthesia and Critical Care Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
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Nawaz T, Gu L, Gibbons J, Hu Z, Zhou R. Bridging Nature and Engineering: Protein-Derived Materials for Bio-Inspired Applications. Biomimetics (Basel) 2024; 9:373. [PMID: 38921253 PMCID: PMC11201842 DOI: 10.3390/biomimetics9060373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/11/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024] Open
Abstract
The sophisticated, elegant protein-polymers designed by nature can serve as inspiration to redesign and biomanufacture protein-based materials using synthetic biology. Historically, petro-based polymeric materials have dominated industrial activities, consequently transforming our way of living. While this benefits humans, the fabrication and disposal of these materials causes environmental sustainability challenges. Fortunately, protein-based biopolymers can compete with and potentially surpass the performance of petro-based polymers because they can be biologically produced and degraded in an environmentally friendly fashion. This paper reviews four groups of protein-based polymers, including fibrous proteins (collagen, silk fibroin, fibrillin, and keratin), elastomeric proteins (elastin, resilin, and wheat glutenin), adhesive/matrix proteins (spongin and conchiolin), and cyanophycin. We discuss the connection between protein sequence, structure, function, and biomimetic applications. Protein engineering techniques, such as directed evolution and rational design, can be used to improve the functionality of natural protein-based materials. For example, the inclusion of specific protein domains, particularly those observed in structural proteins, such as silk and collagen, enables the creation of novel biomimetic materials with exceptional mechanical properties and adaptability. This review also discusses recent advancements in the production and application of new protein-based materials through the approach of synthetic biology combined biomimetics, providing insight for future research and development of cutting-edge bio-inspired products. Protein-based polymers that utilize nature's designs as a base, then modified by advancements at the intersection of biology and engineering, may provide mankind with more sustainable products.
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Affiliation(s)
- Taufiq Nawaz
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
| | - Liping Gu
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
| | | | - Zhong Hu
- Department of Mechanical Engineering, South Dakota State University, Brookings, SD 57007, USA;
| | - Ruanbao Zhou
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
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von Konow I, Eliasson A, Nilsson J, Malm T. Impact of prolonged storage time on homograft ultrastructures: an attempt to find optimal guidelines for homograft processing. Cell Tissue Bank 2024; 25:649-662. [PMID: 38386211 PMCID: PMC11142956 DOI: 10.1007/s10561-024-10127-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 01/10/2024] [Indexed: 02/23/2024]
Abstract
According to guidelines, total ischemic time for homografts at processing must be kept short to avoid degeneration. Many homografts are discarded due to practical inability to finish all steps from procurement to cryopreservation within the time limit. Although, several studies have shown that homografts with prolonged ischemic time show adequate quality and performance. Twenty aortic and 12 pulmonary homografts were collected and biopsies were retrieved at preparation (day 0) and after 1, 2, 3, 4, 7, 14, 21, 28, and 60 days in antibiotic decontamination at 4 °C. Biopsies were prepared for light microscopy (LM) and transmission electron microscopy (TEM). Assessment generated scores for cells, elastin, and collagen. Relative differences between times were compared with Wilcoxon signed rank test. Bonferroni corrected p value of 0.0056 was considered significant. LM could only reveal decrease in cell count at 60 days in aortic homografts, no other differences was detected. TEM showed affected cell appearance in day 3 and day 4 and beyond for aortic and pulmonary homografts respectively. Elastin appearance was affected at day 60 for aortic and day 21 for pulmonary homografts. Collagen appearance was affected at day 28 for aortic homografts, with no significant differences in pulmonary homografts. Cell degeneration starts early after homograft procurement, but elastic and collagen fibers are more resistant to degeneration. Overall structure integrity as seen in LM was not affected at all, while TEM could reveal small degeneration signs in individual elastic fibers and collagen bundles at 21 and 28 days respectively.
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Affiliation(s)
- Ida von Konow
- Department of Cardiothoracic Surgery, Skane University Hospital, Lund, Sweden.
- Department of Clinical Sciences, Thoracic Surgery, Lund University, Lund, Sweden.
- Tissue Bank Lund, Skane University Hospital, Lund, Sweden.
| | | | - Johan Nilsson
- Department of Cardiothoracic Surgery, Skane University Hospital, Lund, Sweden
- Department of Translational Medicine, Thoracic Surgery and Bioinformatics, Lund University, Lund, Sweden
| | - Torsten Malm
- Department of Clinical Sciences, Thoracic Surgery, Lund University, Lund, Sweden
- Tissue Bank Lund, Skane University Hospital, Lund, Sweden
- Department of Pediatric Cardiac Surgery Unit, Skane University Hospital, Lund, Sweden
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Kasamatsu S, Takano K, Aoki M, Takahashi Y, Suzuki T. Rosemary extract and rosmarinic acid accelerate elastic fiber formation by increasing the expression of elastic fiber components in dermal fibroblasts. J Dermatol 2024; 51:816-826. [PMID: 38470170 DOI: 10.1111/1346-8138.17185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/05/2024] [Accepted: 02/20/2024] [Indexed: 03/13/2024]
Abstract
Ultraviolet (UV)-induced skin photoaging is caused by qualitative and quantitative degradation of dermal extracellular matrix components such as collagen and elastic fibers. Elastic fibers are important for maintaining cutaneous elasticity, despite their small amount in the skin. Previously, microfibril-associated protein 4 (MFAP-4), which is downregulated in photoaging dermis, has been found to be essential for elastic fiber formation by interaction with both fibrillin-1 and elastin, which are core components of elastic fiber. In addition, enhanced cutaneous MFAP-4 expression in a human skin-xenografted murine photoaging model protects against UV-induced photodamage accompanied by the prevention of elastic fiber degradation and aggravated elasticity. We therefore hypothesized that the upregulation of MFAP-4 in dermal fibroblasts may more efficiently accelerate elastic fiber formation. We screened botanical extracts for MFAP-4 expression-promoting activity in normal human dermal fibroblasts (NHDFs). We found that rosemary extract markedly promotes early microfibril formation and mature elastic fiber formation along with a significant upregulation of not only MFAP-4 but also fibrillin-1 and elastin in NHDFs. Furthermore, rosmarinic acid, which is abundant in rosemary extract, accelerated elastic fiber formation via upregulation of transforming growth factor β-1. This was achieved by the induction of cAMP response element-binding protein phosphorylation, demonstrating that rosmarinic acid represents one of the active ingredients in rosemary extract. Based on the findings in this study, we conclude that rosemary extract and rosmarinic acid represent promising materials that exert a preventive or ameliorative effect on skin photoaging by accelerating elastic fiber formation.
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Affiliation(s)
- Shinya Kasamatsu
- Biological Science Research Laboratories, Kao Corporation, Kanagawa, Japan
| | - Kei Takano
- Biological Science Research Laboratories, Kao Corporation, Kanagawa, Japan
| | - Mika Aoki
- Biological Science Research Laboratories, Kao Corporation, Kanagawa, Japan
| | - Yoshito Takahashi
- Biological Science Research Laboratories, Kao Corporation, Kanagawa, Japan
| | - Tamio Suzuki
- Department of Dermatology, Faculty of Medicine, Yamagata University, Yamagata, Japan
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8
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Burgess JK, Gosens R. Mechanotransduction and the extracellular matrix: Key drivers of lung pathologies and drug responsiveness. Biochem Pharmacol 2024:116255. [PMID: 38705536 DOI: 10.1016/j.bcp.2024.116255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/19/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
The lung is a biomechanically active organ, with multiscale mechanical forces impacting the organ, tissue and cellular responses within this microenvironment. In chronic lung diseases, such as chronic obstructive pulmonary disease, pulmonary fibrosis and others, the structure of the lung is drastically altered impeding gas exchange. These changes are, in part, reflected in alterations in the composition, amount and organization of the extracellular matrix within the different lung compartments. The transmission of mechanical forces within lung tissue are broadcast by this complex mix of extracellular matrix components, in particular the collagens, elastin and proteoglycans and the crosslinking of these components. At both a macro and a micro level, the mechanical properties of the microenvironment have a key regulatory role in ascertaining cellular responses and the function of the lung. Cells adhere to, and receive signals from, the extracellular matrix through a number of different surface receptors and complexes which are important for mechanotransduction. This review summarizes the multiscale mechanics in the lung and how the mechanical environment changes in lung disease and aging. We then examine the role of mechanotransduction in driving cell signaling events in lung diseases and finish with a future perspective of the need to consider how such forces may impact pharmacological responsiveness in lung diseases.
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Affiliation(s)
- Janette K Burgess
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands.
| | - Reinoud Gosens
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands; Department of Molecular Pharmacology, University of Groningen, Groningen, the Netherlands
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9
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van Velthoven MJJ, Gudde AN, van der Kruit M, van Loon MPC, Rasing L, Wagener FADTG, Roovers JP, Guler Z, Kouwer PHJ. An Improved Understanding of the Pathophysiology of Pelvic Organ Prolapse: A 3D In Vitro Model under Static and Mechanical Loading Conditions. Adv Healthc Mater 2024; 13:e2302905. [PMID: 38219051 DOI: 10.1002/adhm.202302905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 12/22/2023] [Indexed: 01/15/2024]
Abstract
The suboptimal outcomes of pelvic organ prolapse (POP) surgery illustrate the demand for improved therapies. However, their development is hampered by the limited knowledge on the cellular pathophysiology of POP. Current investigations, that are limited to tissues and 2D in vitro models, provide highly inconclusive results on how the extracellular matrix (ECM) metabolism and fibroblasts are affected in POP. This study uses a physiologically relevant 3D in vitro model to investigate the cellular pathophysiology of POP by determining the differences between POP and non-POP fibroblasts on ECM metabolism, proliferation, and fibroblast-to-myofibroblast (FMT) transition. This model, based on the synthetic and biomimetic polyisocyanide hydrogel, enables the incorporation of mechanical loading, which simulates the forces exerted on the pelvic floor. Under static conditions, 3D cultured POP fibroblasts are less proliferative, undergo FMT, and exhibit lower collagen and elastin contents compared to non-POP fibroblasts. However, under mechanical loading, the differences between POP and non-POP fibroblasts are less pronounced. This study contributes to the development of more comprehensive models that can accurately mimic the POP pathophysiology, which will aid in an enhanced understanding and may contribute to improved therapies in the future.
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Affiliation(s)
- Melissa J J van Velthoven
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 28, Nijmegen, 6525 GA, The Netherlands
| | - Aksel N Gudde
- Department of Obstetrics and Gynecology, Amsterdam University Medical Center, location AMC, Meibergdreef 9, Amsterdam, 1105 AZ, The Netherlands
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam University Medical Center, location AMC, Meibergdreef 9, Amsterdam, 1105 AZ, The Netherlands
| | - Marit van der Kruit
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 28, Nijmegen, 6525 GA, The Netherlands
| | - Malou P C van Loon
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 28, Nijmegen, 6525 GA, The Netherlands
| | - Lissy Rasing
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 28, Nijmegen, 6525 GA, The Netherlands
| | - Frank A D T G Wagener
- Department of Dentistry-Orthodontics and Craniofacial Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Philips van Leydenlaan 25, Nijmegen, 6525 EX, The Netherlands
| | - Jan-Paul Roovers
- Department of Obstetrics and Gynecology, Amsterdam University Medical Center, location AMC, Meibergdreef 9, Amsterdam, 1105 AZ, The Netherlands
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam University Medical Center, location AMC, Meibergdreef 9, Amsterdam, 1105 AZ, The Netherlands
| | - Zeliha Guler
- Department of Obstetrics and Gynecology, Amsterdam University Medical Center, location AMC, Meibergdreef 9, Amsterdam, 1105 AZ, The Netherlands
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam University Medical Center, location AMC, Meibergdreef 9, Amsterdam, 1105 AZ, The Netherlands
| | - Paul H J Kouwer
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
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10
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Zhu L, Gou W, Ou L, Liu B, Liu M, Feng H. Role and new insights of microfibrillar-associated protein 4 in fibrotic diseases. APMIS 2024; 132:55-67. [PMID: 37957836 DOI: 10.1111/apm.13358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023]
Abstract
Fibrosis is one of the most worrisome complications of chronic inflammatory diseases, leading to tissue damage, organ failure, and ultimately, death. The most notable pathological characteristic of fibrosis is the excessive accumulation of extracellular matrix (ECM) components such as collagen and fibronectin adjacent to foci of inflammation or damage. The human microfibrillar-associated protein 4 (MFAP4), an important member of the superfamily of fibrinogen-related proteins, is considered to have an extremely important role in ECM transformation of fibrogenesis. This review summarizes the structure, characteristics, and physiological functions of MFAP4 and the importance of MFAP4 in various fibrotic diseases. Meanwhile, we elaborated the underlying actions and mechanisms of MFAP4 in the development of fibrosis, suggesting that a better understand of MFAP4 broadens novel perspective for early screening, diagnosis, prognostic risk assessment, and treatment of fibrotic diseases.
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Affiliation(s)
- Long Zhu
- Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Changsha, China
- Xiangya Stomatological Hospital, Changsha, China
- Xiangya School of Stomatology, Central South University, Changsha, China
| | - Wenqun Gou
- Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Changsha, China
- Xiangya Stomatological Hospital, Changsha, China
- Xiangya School of Stomatology, Central South University, Changsha, China
- Changsha Stomatological Hospital, Changsha, China
| | - Lijia Ou
- Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Changsha, China
- Department of Histology and Embryology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Binjie Liu
- Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Changsha, China
- Xiangya Stomatological Hospital, Changsha, China
- Xiangya School of Stomatology, Central South University, Changsha, China
| | - Manyi Liu
- Xiangya Stomatological Hospital, Changsha, China
- Xiangya School of Stomatology, Central South University, Changsha, China
| | - Hui Feng
- Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Changsha, China
- Xiangya Stomatological Hospital, Changsha, China
- Xiangya School of Stomatology, Central South University, Changsha, China
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11
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Franchi M, Piperigkou Z, Mastronikolis NS, Karamanos N. Extracellular matrix biomechanical roles and adaptation in health and disease. FEBS J 2024; 291:430-440. [PMID: 37612040 DOI: 10.1111/febs.16938] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/24/2023] [Accepted: 08/22/2023] [Indexed: 08/25/2023]
Abstract
Extracellular matrices (ECMs) are dynamic 3D macromolecular networks that exhibit structural characteristics and composition specific to different tissues, serving various biomechanical and regulatory functions. The interactions between ECM macromolecules such as collagen, elastin, glycosaminoglycans (GAGs), proteoglycans (PGs), fibronectin, and laminin, along with matrix effectors and water, contribute to the unique cellular and tissue functional properties during organ development, tissue homoeostasis, remodeling, disease development, and progression. Cells adapt to environmental changes by adjusting the composition and array of ECM components. ECMs, forming the 3D bioscaffolds of our body, provide mechanical support for tissues and organs and respond to the environmental variables influencing growth and final adult body shape in mammals. Different cell types display distinct adaptations to the respective ECM environments. ECMs regulate biological processes by controlling the diffusion of infections and inflammations, sensing and adapting to external stimuli and gravity from the surrounding habitat, and, in the context of cancer, interplaying with and regulating cancer cell invasion and drug resistance. Alterations in the ECM composition in pathological conditions drive adaptive responses of cells and could therefore result in abnormal cell behavior and tissue dysfunction. Understanding the biomechanical functionality, adaptation, and roles of distinct ECMs is essential for research on various pathologies, including cancer progression and multidrug resistance, which is of crucial importance for developing targeted therapies. In this Viewpoint article, we critically present and discuss specific biomechanical functions of ECMs and regulatory adaptation mechanisms in both health and disease, with a particular focus on cancer progression.
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Affiliation(s)
- Marco Franchi
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
| | - Zoi Piperigkou
- Department of Chemistry, Biochemistry, Biochemical Analysis and Matrix Pathobiology Res. Group, Laboratory of Biochemistry, University of Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH)/Institute of Chemical Engineering Sciences (ICE-HT), Patras, Greece
| | - Nicholas S Mastronikolis
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, University of Patras, Greece
| | - Nikos Karamanos
- Department of Chemistry, Biochemistry, Biochemical Analysis and Matrix Pathobiology Res. Group, Laboratory of Biochemistry, University of Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH)/Institute of Chemical Engineering Sciences (ICE-HT), Patras, Greece
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12
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Cantor J. Desmosine as a biomarker for the emergent properties of pulmonary emphysema. Front Med (Lausanne) 2023; 10:1322283. [PMID: 38164218 PMCID: PMC10758135 DOI: 10.3389/fmed.2023.1322283] [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: 10/16/2023] [Accepted: 11/24/2023] [Indexed: 01/03/2024] Open
Abstract
Developing an effective treatment for pulmonary emphysema will require a better understanding of the molecular changes responsible for distention and rupture of alveolar walls. A potentially useful approach to studying this process involves the concept of emergence in which interactions at different levels of scale induce a phase transition comprising a spontaneous reorganization of chemical and physical systems. Recent studies in our laboratory provide evidence of this phenomenon in pulmonary emphysema by relating the emergence of airspace enlargement to the release of elastin-specific desmosine and isodesmosine (DID) crosslinks from damaged elastic fibers. When the mean alveolar diameter exceeded 400 μm, the level of peptide-free DID in human lungs was greatly increased, reflecting rapid acceleration of elastin breakdown, alveolar wall rupture, and a phase transition to an active disease state that is less responsive to treatment. Based on this finding, it is hypothesized that free DID in urine and other body fluids may serve as a biomarker for early detection of airspace enlargement, thereby facilitating timely therapeutic intervention and reducing the risk of respiratory failure.
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Affiliation(s)
- Jerome Cantor
- College of Pharmacy and Health Sciences, St John’s University, Queens, NY, United States
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13
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Roth L, Dogan S, Tuna BG, Aranyi T, Benitez S, Borrell-Pages M, Bozaykut P, De Meyer GRY, Duca L, Durmus N, Fonseca D, Fraenkel E, Gillery P, Giudici A, Jaisson S, Johansson M, Julve J, Lucas-Herald AK, Martinet W, Maurice P, McDonnell BJ, Ozbek EN, Pucci G, Pugh CJA, Rochfort KD, Roks AJM, Rotllan N, Shadiow J, Sohrabi Y, Spronck B, Szeri F, Terentes-Printzios D, Tunc Aydin E, Tura-Ceide O, Ucar E, Yetik-Anacak G. Pharmacological modulation of vascular ageing: A review from VascAgeNet. Ageing Res Rev 2023; 92:102122. [PMID: 37956927 DOI: 10.1016/j.arr.2023.102122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/27/2023] [Accepted: 11/09/2023] [Indexed: 11/20/2023]
Abstract
Vascular ageing, characterized by structural and functional changes in blood vessels of which arterial stiffness and endothelial dysfunction are key components, is associated with increased risk of cardiovascular and other age-related diseases. As the global population continues to age, understanding the underlying mechanisms and developing effective therapeutic interventions to mitigate vascular ageing becomes crucial for improving cardiovascular health outcomes. Therefore, this review provides an overview of the current knowledge on pharmacological modulation of vascular ageing, highlighting key strategies and promising therapeutic targets. Several molecular pathways have been identified as central players in vascular ageing, including oxidative stress and inflammation, the renin-angiotensin-aldosterone system, cellular senescence, macroautophagy, extracellular matrix remodelling, calcification, and gasotransmitter-related signalling. Pharmacological and dietary interventions targeting these pathways have shown potential in ameliorating age-related vascular changes. Nevertheless, the development and application of drugs targeting vascular ageing is complicated by various inherent challenges and limitations, such as certain preclinical methodological considerations, interactions with exercise training and sex/gender-related differences, which should be taken into account. Overall, pharmacological modulation of endothelial dysfunction and arterial stiffness as hallmarks of vascular ageing, holds great promise for improving cardiovascular health in the ageing population. Nonetheless, further research is needed to fully elucidate the underlying mechanisms and optimize the efficacy and safety of these interventions for clinical translation.
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Affiliation(s)
- Lynn Roth
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium.
| | - Soner Dogan
- Department of Medical Biology, School of Medicine, Yeditepe University, Istanbul, Turkiye
| | - Bilge Guvenc Tuna
- Department of Biophysics, School of Medicine, Yeditepe University, Istanbul, Turkiye
| | - Tamas Aranyi
- Institute of Enzymology, Research Centre for Natural Sciences, Budapest, Hungary; Department of Molecular Biology, Semmelweis University, Budapest, Hungary
| | - Sonia Benitez
- CIBER de Diabetes y enfermedades Metabólicas asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain; Cardiovascular Biochemistry, Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
| | - Maria Borrell-Pages
- Cardiovascular Program ICCC, Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain; Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares (CIBER-CV), Instituto de Salud Carlos III, Madrid, Spain
| | - Perinur Bozaykut
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkiye
| | - Guido R Y De Meyer
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
| | - Laurent Duca
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France
| | - Nergiz Durmus
- Department of Pharmacology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkiye
| | - Diogo Fonseca
- Laboratory of Pharmacology and Pharmaceutical Care, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal; Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Emil Fraenkel
- 1st Department of Internal Medicine, University Hospital, Pavol Jozef Šafárik University of Košice, Košice, Slovakia
| | - Philippe Gillery
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France; Laboratoire de Biochimie-Pharmacologie-Toxicologie, Centre Hospitalier et Universitaire de Reims, Reims, France
| | - Alessandro Giudici
- Department of Biomedical Engineering, CARIM School for Cardiovascular Diseases, Maastricht University, the Netherlands; GROW School for Oncology and Reproduction, Maastricht University, the Netherlands
| | - Stéphane Jaisson
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France; Laboratoire de Biochimie-Pharmacologie-Toxicologie, Centre Hospitalier et Universitaire de Reims, Reims, France
| | | | - Josep Julve
- CIBER de Diabetes y enfermedades Metabólicas asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain; Endocrinology, Diabetes and Nutrition group, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
| | | | - Wim Martinet
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
| | - Pascal Maurice
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France
| | - Barry J McDonnell
- Centre for Cardiovascular Health and Ageing, Cardiff Metropolitan University, Cardiff, UK
| | - Emine Nur Ozbek
- Department of Pharmacology, Faculty of Pharmacy, Ege University, Izmir, Turkiye
| | - Giacomo Pucci
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Christopher J A Pugh
- Centre for Cardiovascular Health and Ageing, Cardiff Metropolitan University, Cardiff, UK
| | - Keith D Rochfort
- School of Nursing, Psychotherapy, and Community Health, Dublin City University, Dublin, Ireland
| | - Anton J M Roks
- Department of Internal Medicine, Division of Vascular Disease and Pharmacology, Erasmus Medical Center, Erasmus University, Rotterdam, the Netherlands
| | - Noemi Rotllan
- CIBER de Diabetes y enfermedades Metabólicas asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain; Pathophysiology of lipid-related diseases, Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
| | - James Shadiow
- School of Kinesiology, University of Michigan, Ann Arbor, MI, USA
| | - Yahya Sohrabi
- Molecular Cardiology, Dept. of Cardiology I - Coronary and Peripheral Vascular Disease, University Hospital Münster, Westfälische Wilhelms-Universität, 48149 Münster, Germany; Department of Medical Genetics, Third Faculty of Medicine, Charles University, 100 00 Prague, Czechia
| | - Bart Spronck
- Department of Biomedical Engineering, CARIM School for Cardiovascular Diseases, Maastricht University, the Netherlands; Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Australia
| | - Flora Szeri
- Institute of Enzymology, Research Centre for Natural Sciences, Budapest, Hungary
| | - Dimitrios Terentes-Printzios
- First Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Elif Tunc Aydin
- Department of Cardiology, Hospital of Ataturk Training and Research Hospital, Katip Celebi University, Izmir, Turkiye
| | - Olga Tura-Ceide
- Biomedical Research Institute-IDIBGI, Girona, Spain; Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Respiratorias, Madrid, Spain
| | - Eda Ucar
- Department of Biophysics, School of Medicine, Yeditepe University, Istanbul, Turkiye
| | - Gunay Yetik-Anacak
- Department of Pharmacology, Faculty of Pharmacy, Ege University, Izmir, Turkiye; Department of Pharmacology, Faculty of Pharmacy, Acıbadem Mehmet Aydinlar University, Istanbul, Turkiye.
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14
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Alexiades M. Radiofrequency Microneedling. Facial Plast Surg Clin North Am 2023; 31:495-502. [PMID: 37806682 DOI: 10.1016/j.fsc.2023.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Radiofrequency microneedling is a technique that allows energy to be delivered to specified target depths in the skin via needle electrodes and measures temperature and impedance within the tissue. This method of delivery and real-time feedback has increased safety and efficacy, providing clinically significant improvements in skin laxity, rhytids, and cellulite.
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Affiliation(s)
- Macrene Alexiades
- Yale University School of Medicine, New Haven, CT, USA; Dermatology & Laser Surgery Center of New York, NY, USA.
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15
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Dua HS, Freitas R, Mohammed I, Ting DSJ, Said DG. The pre-Descemet's layer (Dua's layer, also known as the Dua-Fine layer and the pre-posterior limiting lamina layer): Discovery, characterisation, clinical and surgical applications, and the controversy. Prog Retin Eye Res 2023; 97:101161. [PMID: 36642673 DOI: 10.1016/j.preteyeres.2022.101161] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 12/22/2022] [Accepted: 12/28/2022] [Indexed: 01/15/2023]
Abstract
The pre-Descemet's layer/Dua's layer, also termed the Dua-Fine layer and the pre-posterior limiting lamina layer, lies anterior to the Descemet's membrane in the cornea, is 10 μm (range 6-16) thick, made predominantly of type I and some type VI collagen with abundant elastin, more than any other layer of the cornea. It has high tensile strength (bursting pressure up to 700 mm of Hg), is impervious to air and almost acellular. At the periphery it demonstrates fenestrations and ramifies to become the core of the trabecular meshwork, with implications for intraocular pressure and glaucoma. It has been demonstrated in some species of animals. The layer has assumed considerable importance in anterior and posterior lamellar corneal transplant surgery by improving our understanding of the behaviour of corneal tissue during these procedures, improved techniques and made the surgery safer with better outcomes. It has led to the innovation of new surgical procedures namely, pre-Descemet's endothelial keratoplasty, suture management of acute hydrops, DALK-triple and Fogla's mini DALK. The discovery and knowledge of the layer has introduced paradigm shifts in our age old concepts of Descemet's membrane detachment, acute corneal hydrops in keratoconus and Descemetoceles, with impact on management approaches. It has been shown to contribute to the pathology and clinical signs observed in corneal infections and some corneal dystrophies. Early evidence suggests that it may have a role in the pathogenesis of keratoconus in relation to its elastin content. Its contribution to corneal biomechanics and glaucoma are subjects of current investigations.
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Affiliation(s)
- Harminder S Dua
- Larry A Donoso Laboratory for Eye Research, Academic Unit of Ophthalmology and Visual Sciences, University of Nottingham, The Queens Medical Centre, Nottingham University Hospitals, NHS Trust, Nottingham, England, UK.
| | - Rui Freitas
- Larry A Donoso Laboratory for Eye Research, Academic Unit of Ophthalmology and Visual Sciences, University of Nottingham, The Queens Medical Centre, Nottingham University Hospitals, NHS Trust, Nottingham, England, UK; Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Portugal.
| | - Imran Mohammed
- Larry A Donoso Laboratory for Eye Research, Academic Unit of Ophthalmology and Visual Sciences, University of Nottingham, The Queens Medical Centre, Nottingham University Hospitals, NHS Trust, Nottingham, England, UK.
| | - Darren S J Ting
- Larry A Donoso Laboratory for Eye Research, Academic Unit of Ophthalmology and Visual Sciences, University of Nottingham, The Queens Medical Centre, Nottingham University Hospitals, NHS Trust, Nottingham, England, UK.
| | - Dalia G Said
- Larry A Donoso Laboratory for Eye Research, Academic Unit of Ophthalmology and Visual Sciences, University of Nottingham, The Queens Medical Centre, Nottingham University Hospitals, NHS Trust, Nottingham, England, UK; Research Institute of Ophthalmology, Cairo, Egypt.
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16
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Wang Y, Li J. Current progress in growth factors and extracellular vesicles in tendon healing. Int Wound J 2023; 20:3871-3883. [PMID: 37291064 PMCID: PMC10588330 DOI: 10.1111/iwj.14261] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/20/2023] [Indexed: 06/10/2023] Open
Abstract
Tendon injury healing is a complex process that involves the participation of a significant number of molecules and cells, including growth factors molecules in a key role. Numerous studies have demonstrated the function of growth factors in tendon healing, and the recent emergence of EV has also provided a new visual field for promoting tendon healing. This review examines the tendon structure, growth, and development, as well as the physiological process of its healing after injury. The review assesses the role of six substances in tendon healing: insulin-like growth factor-I (IGF-I), transforming growth factor β (TGFβ), vascular endothelial growth factor (VEGF), platelet-derived growth factor (PDGF), basic fibroblast growth factor (bFGF), and EV. Different growth factors are active at various stages of healing and exhibit separate physiological activities. IGF-1 is expressed immediately after injury and stimulates the mitosis of various cells while suppressing the response to inflammation. VEGF, which is also active immediately after injury, accelerates local metabolism by promoting vascular network formation and positively impacts the activities of other growth factors. However, VEGF's protracted action could be harmful to tendon healing. PDGF, the earliest discovered cytokine to influence tendon healing, has a powerful cell chemotaxis and promotes cell proliferation, but it can equally accelerate the response to inflammation and relieve local adhesions. Also useful for relieving tendon adhesion is TGF- β, which is active almost during the entire phase of tendon healing. As a powerful active substance, in addition to its participation in the field of cardiovascular and cerebrovascular vessels, tumour and chronic wounds, TGF- β reportedly plays a role in promoting cell proliferation, activating growth factors, and inhibiting inflammatory response during tendon healing.
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Affiliation(s)
- Yufeng Wang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jin Li
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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17
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Halvorsen S, Wang R, Zhang Y. Contribution of Elastic and Collagen Fibers to the Mechanical Behavior of Bovine Nuchal Ligament. Ann Biomed Eng 2023; 51:2204-2215. [PMID: 37284997 PMCID: PMC10528717 DOI: 10.1007/s10439-023-03254-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 05/16/2023] [Indexed: 06/08/2023]
Abstract
Ligamentum nuchae is a highly elastic tissue commonly used to study the structure and mechanics of elastin. This study combines imaging, mechanical testing, and constitutive modeling to examine the structural organization of elastic and collagen fibers and their contributions to the nonlinear stress-strain behavior of the tissue. Rectangular samples of bovine ligamentum nuchae cut in both longitudinal and transverse directions were tested in uniaxial tension. Purified elastin samples were also obtained and tested. It was observed that the stress-stretch response of purified elastin tissue follows a similar curve as the intact tissue initially, but the intact tissue shows a significant stiffening behavior for stretches above 1.29 with collagen engagement. Multiphoton and histology images confirm the elastin-dominated bulk of ligamentum nuchae interspersed with small bundles of collagen fibrils and sporadic collagen-rich regions with cellular components and ground substance. A transversely isotropic constitutive model that considers the longitudinal organization of elastic and collagen fibers was developed to describe the mechanical behavior of both intact and purified elastin tissue under uniaxial tension. These findings shed light on the unique structural and mechanical roles of elastic and collagen fibers in tissue mechanics and may aid in future use of ligamentum nuchae in tissue grafting.
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Affiliation(s)
- Samuel Halvorsen
- Mechanical Engineering, Boston University, 110 Cummington Mall, Boston, MA, 02215, USA
| | - Ruizhi Wang
- Mechanical Engineering, Boston University, 110 Cummington Mall, Boston, MA, 02215, USA
| | - Yanhang Zhang
- Mechanical Engineering, Boston University, 110 Cummington Mall, Boston, MA, 02215, USA.
- Biomedical Engineering, Boston University, Boston, MA, USA.
- Division of Materials Science & Engineering, Boston University, Boston, MA, USA.
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18
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Irfan M, Qadir MB, Afzal A, Shaker K, Salman SM, Majeed N, Indrie L, Albu A. Investigating the effect of different filaments and yarn structures on mechanical and physical properties of dual-core elastane composite yarns. Heliyon 2023; 9:e20007. [PMID: 37809450 PMCID: PMC10559734 DOI: 10.1016/j.heliyon.2023.e20007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 10/10/2023] Open
Abstract
Dual-core yarns, containing two filaments within the core of the yarn, have gained increasing commercial and research interest recently, especially in denim manufacturing. The use of multi-components in dual-core yarns allows for tailoring the properties of the yarn and denim fabric. The type of filaments and fibers and their surface characteristics play a role in fiber-to-fiber cohesion within yarn structure. However, little has been reported regarding the effect of different filaments on the properties of dual-core yarns. The objective of this study was to investigate the effect of three different filaments, T400, polyester flat (PET flat) and polyester textured (PET textured) as well as two yarn structures, siro versus non-siro, on tensile, elastic and other properties of dual-core yarns at same twist level and linear density of the yarn. The results showed that the siro spun dual-core yarn containing T400 exhibited 25% higher tenacity compared with yarns containing other filaments. However, the plastic deformation of the yarn containing PET flat filament, having a higher initial modulus, was at a relatively lower level compared with T400 and PET textured. Overall, the siro yarn structure showed lower imperfections and higher tenacity compared with the non-siro yarn structure. The dual-core yarn containing T400 showed a higher level of moisture wicking compared with other filaments which can add to the comfort properties but a similar hairiness level. The findings of this study suggest that the use of a filament with a higher initial modulus can improve the stretch and recovery behavior of the dual-core yarns.
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Affiliation(s)
- Muhammad Irfan
- Department of Textile Engineering, National Textile University Faisalabad, Pakistan
| | - Muhammad Bilal Qadir
- Department of Textile Engineering, National Textile University Faisalabad, Pakistan
| | - Ali Afzal
- Department of Textile Engineering, National Textile University Faisalabad, Pakistan
| | - Khubab Shaker
- Department of Materials, National Textile University Faisalabad, Pakistan
| | - Syed Muhammad Salman
- Department of Textile Engineering, National Textile University Faisalabad, Pakistan
| | - Nasir Majeed
- National Textile Research Center, National Textile University Faisalabad, Pakistan
| | - Liliana Indrie
- Faculty of Energy Engineering and Industrial Management, Department of Textiles, University of Oradea, B. St. Delavrancea Str., no. 4, 410058, Oradea, Romania
| | - Adina Albu
- Faculty of Energy Engineering and Industrial Management, Department of Textiles, University of Oradea, B. St. Delavrancea Str., no. 4, 410058, Oradea, Romania
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19
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Wang Q, Li S, Wang H, Zhang M. Configuration of elastin fibers in the intra- and extra-capsule ligaments of the elderly cricoarytenoid joint. Eur Arch Otorhinolaryngol 2023; 280:4149-4153. [PMID: 37208491 PMCID: PMC10382399 DOI: 10.1007/s00405-023-08003-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 04/26/2023] [Indexed: 05/21/2023]
Abstract
PURPOSE To define the localization and configuration of the elastic fibers of the cricoarytenoid ligament (CAL) and their relationship with the cricoarytenoid joint (CAJ) capsule. METHODS Twenty-four CAJs from twelve cadavers were analyzed using Verhoeff-Van Gieson staining, and immunohistochemistry methods. This is a prospective study. RESULTS The CAL was classified into two parts: an extra-capsular anterior-CAL and an intra-capsular posterior-CAL. The both parts contained rich elastic fibers. The elastic fibers of the anterior-CAL were orientated in both anterior-posterior and superior-inferior directions and under a relaxation status, whereas the elastic fibers of the posterior-CAL were arranged in a lateral-medial direction and under a taut status. CONCLUSIONS This study defined the fine configuration of the CAL, particularly its elastic fibers, which may help us to better understand the biomechanics of the CAJ motions, and differential diagnosis of CAJ disorders. The results of the study re-confirm that the P-CAL is the key posterior-lateral passive force to limit the mobility of the muscular process of the arytenoid cartilage and stabilize the CAJ, whereas the A-CAL may protect the CAJ from an over superior-lateral-posterior motion. LEVEL OF EVIDENCE H/A.
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Affiliation(s)
- Qin Wang
- Department of Otolaryngology, The First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Sheng Li
- Department of Anatomy, The Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Huaqiao Wang
- Department of Anatomy, The Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Ming Zhang
- Department of Anatomy, University of Otago, Dunedin, New Zealand.
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20
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Xu R, Li T, Li Z, Kong W, Wang T, Zhang X, Luo J, Li W, Jiao L. Knowledge fields and emerging trends about extracellular matrix in carotid artery disease from 1990 to 2021: analysis of the scientific literature. Eur J Med Res 2023; 28:284. [PMID: 37587506 PMCID: PMC10428572 DOI: 10.1186/s40001-023-01259-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 08/01/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND Stroke is a heavy burden in modern society, and carotid artery disease is a major cause. The role of the extracellular matrix (ECM) in the development and progression of carotid artery disease has become a popular research focus. However, there is no published bibliometric analysis to derive the main publication features and trends in this scientific area. We aim to conduct a bibliometric analysis to reveal current status of ECM in carotid artery disease and to predict future hot spots. METHODS We searched and downloaded articles from the Web of Science Core Collection with "Carotid" and "Extracellular Matrix" as subject words from 1990 to 2021. The complete bibliographic data were analyzed by Bibliometrics, BICOMB, gCLUTO and CiteSpace softwares. RESULTS Since 1990, the United States has been the leader in the number of publications in the field of ECM in carotid artery disease, followed by China, Japan and Germany. Among institutions, Institut National De La Sante Et De La Recherche Medicale Inserm, University of Washington Seattle and Harvard University are in the top 3. "Arteriosclerosis Thrombosis and Vascular Biology" is the most popular journal and "Circulation" is the most cited journal. "Clowes AW", "Hedin Ulf" and "Nilsson Jan" are the top three authors of published articles. Finally, we investigated the frontiers through the strongest citation bursts, conducted keyword biclustering analysis, and discovered five clusters of research hotspots. Our research provided a comprehensive analysis of the fundamental data, knowledge organization, and dynamic evolution of research about ECM in carotid artery disease. CONCLUSIONS The field of ECM in carotid artery disease has received increasing attention. We summarized the history of the field and predicted five future hotspots through bibliometric analysis. This study provided a reference for researchers in this fields, and the methodology can be extended to other fields.
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Affiliation(s)
- Ran Xu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Tianhua Li
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Zhiqing Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University Health Science Center, Beijing, China
| | - Tao Wang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Xiao Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Jichang Luo
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Wenjing Li
- Laboratory of Computational Biology and Machine Intelligence, National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Liqun Jiao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
- China International Neuroscience Institute (China-INI), Beijing, China.
- Department of Interventional Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China.
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21
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Nourian Z, Hong K, Li M, Castorena-Gonzalez JA, Martinez-Lemus LA, Clifford PS, Meininger GA, Hill MA. Postnatal development of extracellular matrix and vascular function in small arteries of the rat. Front Pharmacol 2023; 14:1210128. [PMID: 37649891 PMCID: PMC10464837 DOI: 10.3389/fphar.2023.1210128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 08/02/2023] [Indexed: 09/01/2023] Open
Abstract
Introduction: Vascular extracellular matrix (ECM) is dominated by elastic fibers (elastin with fibrillin-rich microfibrils) and collagens. Current understanding of ECM protein development largely comes from studies of conduit vessels (e.g., aorta) while resistance vessel data are sparse. With an emphasis on elastin, we examined whether changes in postnatal expression of arteriolar wall ECM would correlate with development of local vasoregulatory mechanisms such as the myogenic response and endothelium-dependent dilation. Methods: Rat cerebral and mesenteric arteries were isolated at ages 3, 7, 11, 14, 19 days, 2 months, and 2 years. Using qPCR mRNA expression patterns were examined for elastin, collagen types I, II, III, IV, fibrillin-1, and -2, lysyl oxidase (LOX), and transglutaminase 2. Results: Elastin, LOX and fibrillar collagens I and III mRNA peaked at day 11-14 in both vasculatures before declining at later time-points. 3D confocal imaging for elastin showed continuous remodeling in the adventitia and the internal elastic lamina for both cerebral and mesenteric vessels. Myogenic responsiveness in cannulated cerebral arteries was detectable at day 3 with constriction shifted to higher intraluminal pressures by day 19. Myogenic responsiveness of mesenteric vessels appeared fully developed by day 3. Functional studies were performed to investigate developmental changes in endothelial-dependent dilation. Endothelial-dependent dilation to acetylcholine was less at day 3 compared to day 19 and at day 3 lacked an endothelial-derived hyperpolarizing factor component that was evident at day 19. Conclusion: Collectively, in the rat small artery structural remodeling and aspects of functional control continue to develop in the immediate postnatal period.
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Affiliation(s)
- Zahra Nourian
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
| | - Kwangseok Hong
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
- Department of Physical Education, College of Education, Chung-Ang University, Seoul, Republic of Korea
| | - Min Li
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
| | - Jorge A. Castorena-Gonzalez
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Luis A. Martinez-Lemus
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
| | - Philip S. Clifford
- College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, United States
| | - Gerald A. Meininger
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
| | - Michael A. Hill
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
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22
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Lu J, Li H, Zhang Z, Xu R, Wang J, Jin H. Platelet-rich plasma in the pathologic processes of tendinopathy: a review of basic science studies. Front Bioeng Biotechnol 2023; 11:1187974. [PMID: 37545895 PMCID: PMC10401606 DOI: 10.3389/fbioe.2023.1187974] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 07/10/2023] [Indexed: 08/08/2023] Open
Abstract
Tendinopathy is a medical condition that includes a spectrum of inflammatory and degenerative tendon changes caused by traumatic or overuse injuries. The pathological mechanism of tendinopathy has not been well defined, and no ideal treatment is currently available. Platelet-rich plasma (PRP) is an autologous whole blood derivative containing a variety of cytokines and other protein components. Various basic studies have found that PRP has the therapeutic potential to promote cell proliferation and differentiation, regulate angiogenesis, increase extracellular matrix synthesis, and modulate inflammation in degenerative tendons. Therefore, PRP has been widely used as a promising therapeutic agent for tendinopathy. However, controversies exist over the optimal treatment regimen and efficacy of PRP for tendinopathy. This review focuses on the specific molecular and cellular mechanisms by which PRP manipulates tendon healing to better understand how PRP affects tendinopathy and explore the reason for the differences in clinical trial outcomes. This article has also pointed out the future direction of basic research and clinical application of PRP in the treatment of tendinopathy, which will play a guiding role in the design of PRP treatment protocols for tendinopathy.
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Affiliation(s)
- Jialin Lu
- Department of Pain, The Second Hospital of Jilin University, Changchun, China
- Norman Bethune Health Science Center of Jilin University, Changchun, China
| | - Han Li
- Norman Bethune Health Science Center of Jilin University, Changchun, China
| | - Ziyu Zhang
- Norman Bethune Health Science Center of Jilin University, Changchun, China
| | - Rui Xu
- Department of Endocrinology and Metabolism, Ruijin Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jincheng Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Hui Jin
- Department of Pain, The Second Hospital of Jilin University, Changchun, China
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
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23
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Sun L, Zhang X, Wu S, Liu Y, Guerrero-Juarez CF, Liu W, Huang J, Yao Q, Yin M, Li J, Ramos R, Liao Y, Wu R, Xia T, Zhang X, Yang Y, Li F, Heng S, Zhang W, Yang M, Tzeng CM, Ji C, Plikus MV, Gallo RL, Zhang LJ. Dynamic interplay between IL-1 and WNT pathways in regulating dermal adipocyte lineage cells during skin development and wound regeneration. Cell Rep 2023; 42:112647. [PMID: 37330908 PMCID: PMC10765379 DOI: 10.1016/j.celrep.2023.112647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 05/25/2023] [Accepted: 05/30/2023] [Indexed: 06/20/2023] Open
Abstract
Dermal adipocyte lineage cells are highly plastic and can undergo reversible differentiation and dedifferentiation in response to various stimuli. Using single-cell RNA sequencing of developing or wounded mouse skin, we classify dermal fibroblasts (dFBs) into distinct non-adipogenic and adipogenic cell states. Cell differentiation trajectory analyses identify IL-1-NF-κB and WNT-β-catenin as top signaling pathways that positively and negatively associate with adipogenesis, respectively. Upon wounding, activation of adipocyte progenitors and wound-induced adipogenesis are mediated in part by neutrophils through the IL-1R-NF-κB-CREB signaling axis. In contrast, WNT activation, by WNT ligand and/or ablation of Gsk3, inhibits the adipogenic potential of dFBs but promotes lipolysis and dedifferentiation of mature adipocytes, contributing to myofibroblast formation. Finally, sustained WNT activation and inhibition of adipogenesis is seen in human keloids. These data reveal molecular mechanisms underlying the plasticity of dermal adipocyte lineage cells, defining potential therapeutic targets for defective wound healing and scar formation.
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Affiliation(s)
- Lixiang Sun
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Xiaowei Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Shuai Wu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Youxi Liu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | | | - Wenjie Liu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Jinwen Huang
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Qian Yao
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Meimei Yin
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Jiacheng Li
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Raul Ramos
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
| | - Yanhang Liao
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Rundong Wu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Tian Xia
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Xinyuan Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Yichun Yang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Fengwu Li
- Department of Dermatology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Shujun Heng
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Wenlu Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Minggang Yang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 350005, China
| | - Chi-Meng Tzeng
- Translation Medicine Research Center (TMRC), School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Chao Ji
- Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Maksim V Plikus
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
| | - Richard L Gallo
- Department of Dermatology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Ling-Juan Zhang
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China.
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24
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Mohammadi A, Mansoori B, Safarzadeh E, Gholizadeh S, Baradaran B. Anacyclus pyrethrum extract significantly destroyed lung cancer cell line (A549) by inducing apoptosis. J Herb Med 2023. [DOI: 10.1016/j.hermed.2023.100649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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25
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Fagiola M, Reznik S, Riaz M, Qyang Y, Lee S, Avella J, Turino G, Cantor J. The relationship between elastin cross linking and alveolar wall rupture in human pulmonary emphysema. Am J Physiol Lung Cell Mol Physiol 2023; 324:L747-L755. [PMID: 37014816 DOI: 10.1152/ajplung.00284.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 03/28/2023] [Accepted: 04/02/2023] [Indexed: 04/05/2023] Open
Abstract
To better define the role of mechanical forces in pulmonary emphysema, we employed methods recently developed in our laboratory to identify microscopic level relationships between airspace size and elastin-specific desmosine and isodesmosine (DID) cross links in normal and emphysematous human lungs. Free DID in wet tissue (a biomarker for elastin degradation) and total DID in formalin-fixed, paraffin-embedded (FFPE) tissue sections were measured using liquid chromatography-tandem mass spectrometry and correlated with alveolar diameter, as determined by the mean linear intercept (MLI) method. There was a positive correlation between free lung DID and MLI (P < 0.0001) in formalin-fixed lungs, and elastin breakdown was greatly accelerated when airspace diameter exceeded 400 µm. In FFPE tissue, DID density was markedly increased beyond 300 µm (P < 0.0001) and leveled off around 400 µm. Elastic fiber surface area similarly peaked at around 400 µm, but to a much lesser extent than DID density, indicating that elastin cross linking is markedly increased in response to early changes in airspace size. These findings support the hypothesis that airspace enlargement is an emergent phenomenon in which initial proliferation of DID cross links to counteract alveolar wall distention is followed by a phase transition involving rapid acceleration of elastin breakdown, alveolar wall rupture, and progression to an active disease state that is less amenable to therapeutic intervention.NEW & NOTEWORTHY The current findings support the hypothesis that airspace enlargement is an emergent phenomenon in which initial proliferation of DID cross links to counteract alveolar wall distention is followed by a phase transition involving rapid acceleration of elastin breakdown, alveolar wall rupture, and progression to an active disease state that is less amenable to therapeutic intervention.
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Affiliation(s)
- Michael Fagiola
- Department of Pharmaceutical Sciences, St. John's University, Queens, New York, United States
- Nassau County Medical Examiner, Department of Forensic Toxicology, East Meadow, New York, United States
| | - Sandra Reznik
- Department of Pharmaceutical Sciences, St. John's University, Queens, New York, United States
- Department of Pathology, Albert Einstein College of Medicine, Bronx, New York, United States
- Department of Obstetrics and Gynecology and Women's Health, Albert Einstein College of Medicine, Bronx, New York, United States
| | - Muhammad Riaz
- Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, United States
| | - Yibing Qyang
- Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, United States
| | - Seoyeon Lee
- Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, United States
| | - Joseph Avella
- Nassau County Medical Examiner, Department of Forensic Toxicology, East Meadow, New York, United States
| | - Gerard Turino
- Department of Medicine, Mount Sinai - St. Luke's Medical Center, New York, New York, United States
| | - Jerome Cantor
- Department of Pharmaceutical Sciences, St. John's University, Queens, New York, United States
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26
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Oh S, Lee JH, Kim HM, Batsukh S, Sung MJ, Lim TH, Lee MH, Son KH, Byun K. Poly-L-Lactic Acid Fillers Improved Dermal Collagen Synthesis by Modulating M2 Macrophage Polarization in Aged Animal Skin. Cells 2023; 12:cells12091320. [PMID: 37174720 PMCID: PMC10177436 DOI: 10.3390/cells12091320] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Poly-L-lactic acid (PLLA) fillers correct cutaneous volume loss by stimulating fibroblasts to synthesize collagen and by augmenting the volume. PLLA triggers the macrophage-induced activation of fibroblasts that secrete transforming growth factor-β (TGF-β). However, whether M2 macrophage polarization is involved in PLLA-induced collagen synthesis via fibroblast activation in aged skin is not known. Therefore, we evaluated the effect of PLLA on dermal collagen synthesis via M2 polarization in an H2O2-induced cellular senescence model and aged animal skin. H2O2-treated macrophages had increased expression levels of the M1 marker CD80 and decreased expression levels of the M2 marker CD163, which were reversed by PLLA. The expression levels of interleukin (IL)-4 and IL-13, which mediate M2 polarization, were decreased in H2O2-treated macrophages and increased upon the PLLA treatment. CD163, IL-4, and IL-13 expression levels were decreased in aged skin, but increased after the PLLA treatment. The expression levels of TGF-β, pSMAD2/SMAD2, connective tissue growth factor (CTGF), alpha-smooth muscle actin (α-SMA), collagen type 1A1 (COL1A1), and COL3A1 were also decreased in aged skin, but increased after the PLLA treatment. Moreover, PLLA upregulated phosphatidylinositol 3-kinase p85α (PI3-kinase p85α)/protein kinase B (AKT) signaling, leading to fibroblast proliferation. PLLA decreased the expression of matrix metalloproteinase (MMP) 2 and MMP3, which destroy collagen and elastin fibers in aged skin. The amount of collagen and elastin fibers in aged skin increased following the PLLA treatment. In conclusion, PLLA causes M2 polarization by increasing IL-4 and IL-13 levels and upregulating TGF-β expression and collagen synthesis in aged skin.
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Affiliation(s)
- Seyeon Oh
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Republic of Korea
| | - Je Hyuk Lee
- Doctorbom Clinic, Seoul 06614, Republic of Korea
- Department of Anatomy & Cell Biology, Gachon University College of Medicine, Incheon 21936, Republic of Korea
| | - Hyoung Moon Kim
- Department of Anatomy & Cell Biology, Gachon University College of Medicine, Incheon 21936, Republic of Korea
| | - Sosorburam Batsukh
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Republic of Korea
- Department of Anatomy & Cell Biology, Gachon University College of Medicine, Incheon 21936, Republic of Korea
| | | | | | | | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea
| | - Kyunghee Byun
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Republic of Korea
- Department of Anatomy & Cell Biology, Gachon University College of Medicine, Incheon 21936, Republic of Korea
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health & Sciences and Technology (GAIHST), Gachon University, Incheon 21999, Republic of Korea
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27
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Lin P, Zhang G, Li H. The Role of Extracellular Matrix in Wound Healing. Dermatol Surg 2023; 49:S41-S48. [PMID: 37115999 DOI: 10.1097/dss.0000000000003779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
BACKGROUND Extracellular matrix communicates with surrounding cells to maintain skin homeostasis and modulate multiple cellular processes including wound healing. OBJECTIVE To elucidate the dynamic composition and potential roles of extracellular matrix in normal skin, wound healing process, and abnormal skin scarring. MATERIALS AND METHODS Literature review was performed to identify relevant publications pertaining to the extracellular matrix deposition in normal skin and wound healing process, as well as in abnormal scars. RESULTS A summary of the matrix components in normal skin is presented. Their primary roles in hemostasis, inflammation, proliferation, and remodeling phases of wound healing are briefly discussed. Identification of novel extracellular matrix in keloids is also provided. CONCLUSION Abnormal scarring remains a challenging condition with unmet satisfactory treatments. Illumination of extracellular matrix composition and functions in wound healing process will allow for the development of targeted therapies in the future.
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Affiliation(s)
- Pingping Lin
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
- NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
| | - Guohong Zhang
- Department of Pathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Hang Li
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
- NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
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28
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Liu Z, Hui Mingalone CK, Gnanatheepam E, Hollander JM, Zhang Y, Meng J, Zeng L, Georgakoudi I. Label-free, multi-parametric assessments of cell metabolism and matrix remodeling within human and early-stage murine osteoarthritic articular cartilage. Commun Biol 2023; 6:405. [PMID: 37055483 PMCID: PMC10102009 DOI: 10.1038/s42003-023-04738-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 03/21/2023] [Indexed: 04/15/2023] Open
Abstract
Osteoarthritis (OA) is characterized by the progressive deterioration of articular cartilage, involving complicated cell-matrix interactions. Systematic investigations of dynamic cellular and matrix changes during OA progression are lacking. In this study, we use label-free two-photon excited fluorescence (TPEF) and second harmonic generation (SHG) imaging to assess cellular and extracellular matrix features of murine articular cartilage during several time points at early stages of OA development following destabilization of medial meniscus surgery. We detect significant changes in the organization of collagen fibers and crosslink-associated fluorescence of the superficial zone as early as one week following surgery. Such changes become significant within the deeper transitional and radial zones at later time-points, highlighting the importance of high spatial resolution. Cellular metabolic changes exhibit a highly dynamic behavior, and indicate metabolic reprogramming from enhanced oxidative phosphorylation to enhanced glycolysis or fatty acid oxidation over the ten-week observation period. The optical metabolic and matrix changes detected within this mouse model are consistent with differences identified in excised human cartilage specimens from OA and healthy cartilage specimens. Thus, our studies reveal important cell-matrix interactions at the onset of OA that may enable improved understanding of OA development and identification of new potential treatment targets.
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Affiliation(s)
- Zhiyi Liu
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang, 310027, China
- Intelligent Optics & Photonics Research Center, Jiaxing Research Institute, Zhejiang University, Jiaxing, Zhejiang, 314000, China
| | - Carrie K Hui Mingalone
- Program in Cell, Molecular, and Developmental Biology, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, 02111, USA
| | | | - Judith M Hollander
- Program in Cell, Molecular, and Developmental Biology, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, 02111, USA
| | - Yang Zhang
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Jia Meng
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Li Zeng
- Program in Cell, Molecular, and Developmental Biology, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, 02111, USA
- Department of Immunology, Tufts University School of Medicine, Boston, MA, 02111, USA
- Department of Orthopaedics, Tufts Medical Center, Boston, MA, 02111, USA
| | - Irene Georgakoudi
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA.
- Program in Cell, Molecular, and Developmental Biology, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, 02111, USA.
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29
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Timin G, Milinkovitch MC. High-resolution confocal and light-sheet imaging of collagen 3D network architecture in very large samples. iScience 2023; 26:106452. [PMID: 37020961 PMCID: PMC10067766 DOI: 10.1016/j.isci.2023.106452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 02/06/2023] [Accepted: 03/15/2023] [Indexed: 04/03/2023] Open
Abstract
Although notoriously difficult, imaging collagen network architecture, a key element affecting tissue mechanical properties, is of paramount importance in developmental and cancer biology. Here, we introduce a simple and robust method of whole-mount collagen staining with the 'Fast Green' dye that provides unmatched visualization of collagen 3D network architecture, via confocal or light-sheet microscopy, compatible with solvent-based tissue clearing and immunostaining.
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30
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Trębacz H, Barzycka A. Mechanical Properties and Functions of Elastin: An Overview. Biomolecules 2023; 13:biom13030574. [PMID: 36979509 PMCID: PMC10046833 DOI: 10.3390/biom13030574] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/08/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Human tissues must be elastic, much like other materials that work under continuous loads without losing functionality. The elasticity of tissues is provided by elastin, a unique protein of the extracellular matrix (ECM) of mammals. Its function is to endow soft tissues with low stiffness, high and fully reversible extensibility, and efficient elastic-energy storage. Depending on the mechanical functions, the amount and distribution of elastin-rich elastic fibers vary between and within tissues and organs. The article presents a concise overview of the mechanical properties of elastin and its role in the elasticity of soft tissues. Both the occurrence of elastin and the relationship between its spatial arrangement and mechanical functions in a given tissue or organ are overviewed. As elastin in tissues occurs only in the form of elastic fibers, the current state of knowledge about their mechanical characteristics, as well as certain aspects of degradation of these fibers and their mechanical performance, is presented. The overview also outlines the latest understanding of the molecular basis of unique physical characteristics of elastin and, in particular, the origin of the driving force of elastic recoil after stretching.
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Affiliation(s)
- Hanna Trębacz
- Department of Biophysics, Medical University of Lublin, Al. Racławickie 1, 20-059 Lublin, Poland
| | - Angelika Barzycka
- Department of Biophysics, Medical University of Lublin, Al. Racławickie 1, 20-059 Lublin, Poland
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31
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Ma H, Zheng L, Yang S, Cheng YY, Liu T, Wu S, Wang H, Zhang J, Song K. Construction and properties detection of 3D micro-structure scaffolds base on decellularized sheep kidney before and after crosslinking. J Biomater Appl 2023; 37:1593-1604. [PMID: 36919373 DOI: 10.1177/08853282231163758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Decellularized extracellular matrix is one form of natural material in tissue engineering. The process of dECM retains the tissue microstructure, provides good cell adhesion sites, maintains most of biological signals that promotes the survival and differentiation ability of cells. In this study, sheep kidney was decellularized followed by histochemical staining, elemental analysis and scanning electron microscopy characterizations. The dECM scaffold was prepared with different sequences of freeze drying technology, crosslinking and the water absorption, porosity, mechanical strength with subsequent thermogravimetric analysis, Infrared spectroscopy and biocompatibility tests. Our results indicated that these decellularized treatments of sheep kidney can effectively remove DNA and retain uniform pore size distribution. After crosslinking the scaffold's water absorption decreased from 987.56 ± 40.21% to 934.39 ± 39.61%, the porosity decreased from 89.64 ± 3.2% to 85.09 ± 17.63%, and the compression modulus increased from 304.32 ± 25.43 kPa to 459.53 ± 38.92 kPa, with thermal process the percentage of weight loss decreased from 66.57% to 44.731%, in addition, the composition didn't change significantly, crosslinking could also promote the stability. In terms of biocompatibility, the number of viable cells increased significantly with the days. In conclusion, the crosslinked decellularized sheep kidney extracellular matrix scaffold reduced water absorption and porosity slightly, but has a significant increase in mechanical properties, and presented excellent biocompatibility which are beneficial to cell adhesion, growth and differentiation.
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Affiliation(s)
- Hailin Ma
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, 12399Dalian University of Technology, Dalian, China
| | - Le Zheng
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, 12399Dalian University of Technology, Dalian, China
| | - Shuangjia Yang
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, 12399Dalian University of Technology, Dalian, China
| | - Yuen Yee Cheng
- Institute for Biomedical Materials and Devices, Faculty of Science, 1994University of Technology Sydney, Sydney, NSW, Australia
| | - Tianqing Liu
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, 12399Dalian University of Technology, Dalian, China
| | - Shuo Wu
- Department of Medical Oncology, Liaoning Cancer Hospital & Institute, 12399Cancer Hospital of Dalian University of Technology, Shenyang, China
| | - Hongfei Wang
- Department of Orthopedics, 36674Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jingying Zhang
- The Second Clinical Medical College, 12453Guangdong Medical University, Dongguan, China
| | - Kedong Song
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, 12399Dalian University of Technology, Dalian, China
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32
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Xie W, Wei X, Kang H, Jiang H, Chu Z, Lin Y, Hou Y, Wei Q. Static and Dynamic: Evolving Biomaterial Mechanical Properties to Control Cellular Mechanotransduction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204594. [PMID: 36658771 PMCID: PMC10037983 DOI: 10.1002/advs.202204594] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 12/28/2022] [Indexed: 06/17/2023]
Abstract
The extracellular matrix (ECM) is a highly dynamic system that constantly offers physical, biological, and chemical signals to embraced cells. Increasing evidence suggests that mechanical signals derived from the dynamic cellular microenvironment are essential controllers of cell behaviors. Conventional cell culture biomaterials, with static mechanical properties such as chemistry, topography, and stiffness, have offered a fundamental understanding of various vital biochemical and biophysical processes, such as cell adhesion, spreading, migration, growth, and differentiation. At present, novel biomaterials that can spatiotemporally impart biophysical cues to manipulate cell fate are emerging. The dynamic properties and adaptive traits of new materials endow them with the ability to adapt to cell requirements and enhance cell functions. In this review, an introductory overview of the key players essential to mechanobiology is provided. A biophysical perspective on the state-of-the-art manipulation techniques and novel materials in designing static and dynamic ECM-mimicking biomaterials is taken. In particular, different static and dynamic mechanical cues in regulating cellular mechanosensing and functions are compared. This review to benefit the development of engineering biomechanical systems regulating cell functions is expected.
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Affiliation(s)
- Wenyan Xie
- Department of BiotherapyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan UniversityChengduSichuan610065China
| | - Xi Wei
- Department of Mechanical EngineeringThe University of Hong KongHong KongChina
| | - Heemin Kang
- Department of Materials Science and EngineeringKorea UniversitySeoul02841South Korea
| | - Hong Jiang
- Department of BiotherapyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan UniversityChengduSichuan610065China
| | - Zhiqin Chu
- Department of Electrical and Electronic Engineering (Joint Appointment with School of Biomedical Sciences)The University of Hong KongHong KongChina
| | - Yuan Lin
- Department of Mechanical EngineeringThe University of Hong KongHong KongChina
| | - Yong Hou
- Department of Electrical and Electronic EngineeringThe University of Hong KongHong KongChina
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Qiang Wei
- College of Polymer Science and EngineeringState Key Laboratory of Polymer Materials and EngineeringSichuan UniversityChengdu610065China
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33
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Ili P, Sari F. Egg yolk oil accelerates wound healing in streptozotocin induced diabetic rats. Biotech Histochem 2023; 98:94-111. [PMID: 36040350 DOI: 10.1080/10520295.2022.2115554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Impaired diabetic wound healing causes foot ulcers. We investigated egg yolk oil for skin wound healing in streptozotocin (STZ) induced diabetic rats. Rats were allocated into three groups of six. Group 1, nondiabetic control group, was treated topically with 2% fusidic acid ointment. Group 2, STZ diabetic control, was treated topically with 2% fusidic acid ointment. Group 3, STZ diabetic group, was treated topically with egg yolk oil. Three days after STZ injection, two full thickness excisional skin wounds were created on the back of each animal. Wound diameter was measured for 14 days and wound contraction was calculated. Re-epithelization time also was determined. Three rats from each group were sacrificed on experimental day 7 and the remaining rats on day 14. Wound samples were examined using hematoxylin and eosin, periodic acid-Schiff, Masson's trichrome, Taenzer-Unna orcein and toluidine blue staining. Expression of endoglin (CD105), epidermal growth factor (EGF) and vascular endothelial growth factor (VEGF) were investigated using immunohistochemistry. Egg yolk oil increased the proliferation of epithelial cells and angiogenesis, and stimulated collagen deposition in the lesion area. Egg yolk oil increased CD105, EGF and VEGF expression in blood vessels, and EGF and VEGF expression in epidermis of the lesions. The predominant fatty acids in egg yolk oil are oleic, palmitic and linoleic, which likely were responsible for the beneficial effects of egg yolk oil on diabetic wound healing. Egg yolk oil appears to be a promising therapeutic agent for healing of diabetic wounds.
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Affiliation(s)
- Pinar Ili
- Department of Medical Services and Techniques, Denizli Vocational School of Health Services, Pamukkale University, Denizli, Turkey
| | - Fikret Sari
- Department of Plant and Animal Production, Tavas Vocational School, Pamukkale University, Denizli, Turkey
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34
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Åström Malm I, De Basso R, Blomstrand P. No differences in FBN1 genotype between men with and without abdominal aortic aneurysm. BMC Cardiovasc Disord 2023; 23:36. [PMID: 36670346 PMCID: PMC9854173 DOI: 10.1186/s12872-023-03068-3] [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: 09/04/2022] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is an aortic enlargement in which the transverse diameter reaches at least 30 mm. Certain risk factors, such as age, male gender, and smoking, are well known; however, less is known about the genetic factors involved. Fibrillin-1 (FBN1) is a protein that coordinates the deposition of elastin fibres in the extracellular matrix and is therefore likely to affect the elastic properties in the aortic wall. Previously studies have found associations between the FBN1-2/3 genotype and arterial stiffness, but how different FBN1 genotypes, AAA, and arterial stiffness are related has been less frequently investigated. AIM This study aimed to investigate whether there is a difference in FBN1 genotype between men with and without AAA. A further aim was to study whether the FBN1 genotype affects arterial wall stiffness differently in men with and without AAA. METHODS Pulse wave velocity and FBN1 genotyping were performed in 229 men (159 with AAA, 70 without AAA). Participants were recruited from ultrasound AAA surveillance programs or ongoing ultrasound screening programs from 2011 to 2016. RESULTS The distribution of the FBN1 genotype in the AAA and control groups were as follows: FBN1-2/2: 62% vs. 64%; FBN1-2/3: 8% vs. 14%; and FBN1-2/4: 30% vs. 21%, respectively. Men with AAA and FBN1-2/2 had increased central pulse wave velocity (p < 0.005) compared to the control group (those without AAA) with the FBN1-2/2 genotype. CONCLUSION No differences were found with respect to FBN1 genotypes between men with and without AAA. The development of AAA in men does not appear to be linked to a specific FBN1 genotype. Nevertheless, men with FBN1-2/2 and AAA have increased central arterial stiffness compared to men with the same FBN1 genotype but without AAA.
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Affiliation(s)
- Ida Åström Malm
- grid.118888.00000 0004 0414 7587Department of Natural Sciences and Biomedicine, School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | - Rachel De Basso
- grid.118888.00000 0004 0414 7587Department of Natural Sciences and Biomedicine, School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | - Peter Blomstrand
- grid.118888.00000 0004 0414 7587Department of Natural Sciences and Biomedicine, School of Health and Welfare, Jönköping University, Jönköping, Sweden ,grid.413253.2Department of Clinical Physiology, County Hospital Ryhov, Jönköping, Sweden
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35
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Guo T, Wantono C, Tan Y, Deng F, Duan T, Liu D. Regulators, functions, and mechanotransduction pathways of matrix stiffness in hepatic disease. Front Physiol 2023; 14:1098129. [PMID: 36711017 PMCID: PMC9878334 DOI: 10.3389/fphys.2023.1098129] [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: 11/14/2022] [Accepted: 01/06/2023] [Indexed: 01/15/2023] Open
Abstract
The extracellular matrix (ECM) provides physical support and imparts significant biochemical and mechanical cues to cells. Matrix stiffening is a hallmark of liver fibrosis and is associated with many hepatic diseases, especially liver cirrhosis and carcinoma. Increased matrix stiffness is not only a consequence of liver fibrosis but is also recognized as an active driver in the progression of fibrotic hepatic disease. In this article, we provide a comprehensive view of the role of matrix stiffness in the pathological progression of hepatic disease. The regulators that modulate matrix stiffness including ECM components, MMPs, and crosslinking modifications are discussed. The latest advances of the research on the matrix mechanics in regulating intercellular signaling and cell phenotype are classified, especially for hepatic stellate cells, hepatocytes, and immunocytes. The molecular mechanism that sensing and transducing mechanical signaling is highlighted. The current progress of ECM stiffness's role in hepatic cirrhosis and liver cancer is introduced and summarized. Finally, the recent trials targeting ECM stiffness for the treatment of liver disease are detailed.
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Affiliation(s)
- Ting Guo
- Department of Gastroenterology, The Second Xiangya Hospital of Central South University, Changsha, China,Research Center of Digestive Disease, Central South University, Changsha, China
| | - Cindy Wantono
- Department of Gastroenterology, The Second Xiangya Hospital of Central South University, Changsha, China,Research Center of Digestive Disease, Central South University, Changsha, China
| | - Yuyong Tan
- Department of Gastroenterology, The Second Xiangya Hospital of Central South University, Changsha, China,Research Center of Digestive Disease, Central South University, Changsha, China
| | - Feihong Deng
- Department of Gastroenterology, The Second Xiangya Hospital of Central South University, Changsha, China,Research Center of Digestive Disease, Central South University, Changsha, China
| | - Tianying Duan
- Department of Gastroenterology, The Second Xiangya Hospital of Central South University, Changsha, China,Research Center of Digestive Disease, Central South University, Changsha, China
| | - Deliang Liu
- Department of Gastroenterology, The Second Xiangya Hospital of Central South University, Changsha, China,Research Center of Digestive Disease, Central South University, Changsha, China,*Correspondence: Deliang Liu,
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36
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Summers KM, Bush SJ, Davis MR, Hume DA, Keshvari S, West JA. Fibrillin-1 and asprosin, novel players in metabolic syndrome. Mol Genet Metab 2023; 138:106979. [PMID: 36630758 DOI: 10.1016/j.ymgme.2022.106979] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Fibrillin-1 is a major component of the extracellular microfibrils, where it interacts with other extracellular matrix proteins to provide elasticity to connective tissues, and regulates the bioavailability of TGFβ family members. A peptide consisting of the C-terminal 140 amino acids of fibrillin-1 has recently been identified as a glucogenic hormone, secreted from adipose tissue during fasting and targeting the liver to release glucose. This fragment, called asprosin, also signals in the hypothalamus to stimulate appetite. Asprosin levels are correlated with many of the pathologies indicative of metabolic syndrome, including insulin resistance and obesity. Previous studies and reviews have addressed the therapeutic potential of asprosin as a target in obesity, diabetes and related conditions without considering mechanisms underlying the relationship between generation of asprosin and expression of the much larger fibrillin-1 protein. Profibrillin-1 undergoes obligatory cleavage at the cell surface as part of its assembly into microfibrils, producing the asprosin peptide as well as mature fibrillin-1. Patterns of FBN1 mRNA expression are inconsistent with the necessity for regulated release of asprosin. The asprosin peptide may be protected from degradation in adipose tissue. We present evidence for an alternative possibility, that asprosin mRNA is generated independently from an internal promoter within the 3' end of the FBN1 gene, which would allow for regulation independent of fibrillin-synthesis and is more economical of cellular resources. The discovery of asprosin opened exciting possibilities for treatment of metabolic syndrome related conditions, but there is much to be understood before such therapies could be introduced into the clinic.
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Affiliation(s)
- Kim M Summers
- Mater Research Institute-University of Queensland, Translational Research Institute, 37 Kent St, Woolloongabba, Queensland 4102, Australia.
| | - Stephen J Bush
- Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headley Way, Oxford OX3 9DS, United Kingdom.
| | - Margaret R Davis
- The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, United Kingdom
| | - David A Hume
- Mater Research Institute-University of Queensland, Translational Research Institute, 37 Kent St, Woolloongabba, Queensland 4102, Australia.
| | - Sahar Keshvari
- Mater Research Institute-University of Queensland, Translational Research Institute, 37 Kent St, Woolloongabba, Queensland 4102, Australia.
| | - Jennifer A West
- Faculty of Medicine, The University of Queensland, Mayne Medical Building, 288 Herston Road, Herston, Queensland 4006, Australia.
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37
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Kushige H, Amano Y, Yagi H, Morisaku T, Kojima H, Satou A, Hamada KI, Kitagawa Y. Injectable extracellular matrix hydrogels contribute to native cell infiltration in a rat partial nephrectomy model. J Biomed Mater Res B Appl Biomater 2023; 111:184-193. [PMID: 36053744 DOI: 10.1002/jbm.b.35144] [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: 03/04/2022] [Revised: 06/07/2022] [Accepted: 07/25/2022] [Indexed: 11/11/2022]
Abstract
Decellularized extracellular matrix (dECM) hydrogels have cytocompatibility, and are currently being investigated for application in soft tissues as a material that promotes native cell infiltration and tissue reconstruction. A dECM hydrogel has broad potential for application in organs with complex structures or various tissue injury models. In this study, we investigated the practical application of a dECM hydrogel by injecting a kidney-derived dECM hydrogel into a rat partial nephrectomy model. The prepared dECM hydrogel was adjustable in viscosity to allow holding at the excision site, and after gelation, had an elastic modulus similar to that of kidney tissue. In addition, the migration of renal epithelial cells and vascular endothelial cells embedded in dECM hydrogels was observed in vitro. Four weeks after injection of the dECM hydrogel to the partial excision site of the kidneys, infiltration of renal tubular constituent cells and native cells with high proliferative activity, as well as angiogenesis, were observed inside the injected areas. This study is the first to show that dECM hydrogels can be applied to the kidney, one of the most complex structural organs and that they can function as a scaffold to induce angiogenesis and infiltration of organ-specific renal tubular constituent cells, providing fundamental insights for further application of dECM hydrogels.
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Affiliation(s)
- Hiroko Kushige
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan.,JSR-Keio University Medical and Chemical Innovation Center (JKiC), Keio University School of Medicine, Tokyo, Japan
| | - Yuki Amano
- JSR-Keio University Medical and Chemical Innovation Center (JKiC), JSR Corp, Tokyo, Japan
| | - Hiroshi Yagi
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan.,JSR-Keio University Medical and Chemical Innovation Center (JKiC), Keio University School of Medicine, Tokyo, Japan
| | - Toshinori Morisaku
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan.,JSR-Keio University Medical and Chemical Innovation Center (JKiC), Keio University School of Medicine, Tokyo, Japan
| | - Hideaki Kojima
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan.,JSR-Keio University Medical and Chemical Innovation Center (JKiC), Keio University School of Medicine, Tokyo, Japan
| | - Akiko Satou
- JSR-Keio University Medical and Chemical Innovation Center (JKiC), JSR Corp, Tokyo, Japan
| | - Ken-Ichi Hamada
- JSR-Keio University Medical and Chemical Innovation Center (JKiC), JSR Corp, Tokyo, Japan
| | - Yuko Kitagawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan.,JSR-Keio University Medical and Chemical Innovation Center (JKiC), Keio University School of Medicine, Tokyo, Japan
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38
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Virulence Induction in Pseudomonas aeruginosa under Inorganic Phosphate Limitation: a Proteomics Perspective. Microbiol Spectr 2022; 10:e0259022. [PMID: 36354317 PMCID: PMC9769906 DOI: 10.1128/spectrum.02590-22] [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] [Indexed: 11/12/2022] Open
Abstract
Inorganic phosphate (Pi) is a central nutrient and signal molecule for bacteria. Pi limitation was shown to increase the virulence of several phylogenetically diverse pathogenic bacteria with different lifestyles. Hypophosphatemia enhances the risk of death in patients due to general bacteremia and was observed after surgical injury in humans. Phosphate therapy, or the reduction of bacterial virulence by the administration of Pi or phosphate-containing compounds, is a promising anti-infective therapy approach that will not cause cytotoxicity or the emergence of antibiotic-resistant strains. The proof of concept of phosphate therapy has been obtained using primarily Pseudomonas aeruginosa (PA). However, a detailed understanding of Pi-induced changes at protein levels is missing. Using pyocyanin production as proxy, we show that the Pi-mediated induction of virulence is a highly cooperative process that occurs between 0.2 to 0.6 mM Pi. We present a proteomics study of PA grown in minimal medium supplemented with either 0.2 mM or 1 mM Pi and rich medium. About half of the predicted PA proteins could be quantified. Among the 1,471 dysregulated proteins comparing growth in 0.2 mM to 1 mM Pi, 1,100 were depleted under Pi-deficient conditions. Most of these proteins are involved in general and energy metabolism, different biosynthetic and catabolic routes, or transport. Pi depletion caused accumulation of proteins that belong to all major families of virulence factors, including pyocyanin synthesis, secretion systems, quorum sensing, chemosensory signaling, and the secretion of proteases, phospholipases, and phosphatases, which correlated with an increase in exoenzyme production and antibacterial activity. IMPORTANCE Antibiotics are our main weapons to fight pathogenic bacteria, but the increase in antibiotic-resistant strains and their consequences represents a major global health challenge, revealing the necessity to develop alternative antimicrobial strategies that do not involve the bacterial killing or growth inhibition. P. aeruginosa has been placed second on the global priority list to guide research on the development of new antibiotics. One of the most promising alternative strategies is the phosphate therapy for which the proof of concept has been obtained for P. aeruginosa. This article reports the detailed changes at the protein levels comparing P. aeruginosa grown under Pi-abundant and Pi-depleted conditions. These data describe in detail the molecular mechanisms underlying phosphate therapy. Apart from Pi, several other phosphate-containing compounds have been used for phosphate therapy and this study will serve as a reference for comparative studies aimed at evaluating the effect of alternative compounds.
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Bax M, Romanov V, Junday K, Giannoulatou E, Martinac B, Kovacic JC, Liu R, Iismaa SE, Graham RM. Arterial dissections: Common features and new perspectives. Front Cardiovasc Med 2022; 9:1055862. [PMID: 36561772 PMCID: PMC9763901 DOI: 10.3389/fcvm.2022.1055862] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/16/2022] [Indexed: 12/12/2022] Open
Abstract
Arterial dissections, which involve an abrupt tear in the wall of a major artery resulting in the intramural accumulation of blood, are a family of catastrophic disorders causing major, potentially fatal sequelae. Involving diverse vascular beds, including the aorta or coronary, cervical, pulmonary, and visceral arteries, each type of dissection is devastating in its own way. Traditionally they have been studied in isolation, rather than collectively, owing largely to the distinct clinical consequences of dissections in different anatomical locations - such as stroke, myocardial infarction, and renal failure. Here, we review the shared and unique features of these arteriopathies to provide a better understanding of this family of disorders. Arterial dissections occur commonly in the young to middle-aged, and often in conjunction with hypertension and/or migraine; the latter suggesting they are part of a generalized vasculopathy. Genetic studies as well as cellular and molecular investigations of arterial dissections reveal striking similarities between dissection types, particularly their pathophysiology, which includes the presence or absence of an intimal tear and vasa vasorum dysfunction as a cause of intramural hemorrhage. Pathway perturbations common to all types of dissections include disruption of TGF-β signaling, the extracellular matrix, the cytoskeleton or metabolism, as evidenced by the finding of mutations in critical genes regulating these processes, including LRP1, collagen genes, fibrillin and TGF-β receptors, or their coupled pathways. Perturbances in these connected signaling pathways contribute to phenotype switching in endothelial and vascular smooth muscle cells of the affected artery, in which their physiological quiescent state is lost and replaced by a proliferative activated phenotype. Of interest, dissections in various anatomical locations are associated with distinct sex and age predilections, suggesting involvement of gene and environment interactions in disease pathogenesis. Importantly, these cellular mechanisms are potentially therapeutically targetable. Consideration of arterial dissections as a collective pathology allows insight from the better characterized dissection types, such as that involving the thoracic aorta, to be leveraged to inform the less common forms of dissections, including the potential to apply known therapeutic interventions already clinically available for the former.
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Affiliation(s)
- Monique Bax
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
- UNSW Medicine and Health, UNSW Sydney, Kensington, NSW, Australia
| | - Valentin Romanov
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
- UNSW Medicine and Health, UNSW Sydney, Kensington, NSW, Australia
| | - Keerat Junday
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
- UNSW Medicine and Health, UNSW Sydney, Kensington, NSW, Australia
| | - Eleni Giannoulatou
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
- UNSW Medicine and Health, UNSW Sydney, Kensington, NSW, Australia
| | - Boris Martinac
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
- UNSW Medicine and Health, UNSW Sydney, Kensington, NSW, Australia
| | - Jason C. Kovacic
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
- UNSW Medicine and Health, UNSW Sydney, Kensington, NSW, Australia
- St. Vincent’s Hospital, Darlinghurst, NSW, Australia
- Icahn School of Medicine at Mount Sinai, Cardiovascular Research Institute, New York, NY, United States
| | - Renjing Liu
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
- UNSW Medicine and Health, UNSW Sydney, Kensington, NSW, Australia
| | - Siiri E. Iismaa
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
- UNSW Medicine and Health, UNSW Sydney, Kensington, NSW, Australia
| | - Robert M. Graham
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
- UNSW Medicine and Health, UNSW Sydney, Kensington, NSW, Australia
- St. Vincent’s Hospital, Darlinghurst, NSW, Australia
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Pukaluk A, Wolinski H, Viertler C, Regitnig P, Holzapfel GA, Sommer G. Changes in the microstructure of the human aortic medial layer under biaxial loading investigated by multi-photon microscopy. Acta Biomater 2022; 151:396-413. [PMID: 35970481 DOI: 10.1016/j.actbio.2022.08.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 07/29/2022] [Accepted: 08/08/2022] [Indexed: 11/01/2022]
Abstract
Understanding the correlation between tissue architecture, health status, and mechanical properties is essential for improving material models and developing tissue engineering scaffolds. Since structural-based material models are state of the art, there is an urgent need for experimentally obtained structural parameters. For this purpose, the medial layer of nine human abdominal aortas was simultaneously subjected to equibiaxial loading and multi-photon microscopy. At each loading interval of 0.02, collagen and elastin fibers were imaged based on their second-harmonic generation signal and two-photon excited autofluorescence, respectively. The structural alterations in the fibers were quantified using the parameters of orientation, diameter, and waviness. The results of the mechanical tests divided the sample cohort into the ruptured and non-ruptured, and stiff and non-stiff groups, which were covered by the findings from histological investigations. The alterations in structural parameters provided an explanation for the observed mechanical behavior. In addition, the waviness parameters of both collagen and elastin fibers showed the potential to serve as indicators of tissue strength. The data provided address deficiencies in current material models and bridge multiscale mechanisms in the aortic media. STATEMENT OF SIGNIFICANCE: Available material models can reproduce, but cannot predict, the mechanical behavior of human aortas. This deficiency could be overcome with the help of experimentally validated structural parameters as provided in this study. Simultaneous multi-photon microscopy and biaxial extension testing revealed the microstructure of human aortic media at different stretch levels. Changes in the arrangement of collagen and elastin fibers were quantified using structural parameters such as orientation, diameter and waviness. For the first time, structural parameters of human aortic tissue under continuous loading conditions have been obtained. In particular, the waviness parameters at the reference configuration have been associated with tissue stiffness, brittleness, and the onset of atherosclerosis.
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Affiliation(s)
- Anna Pukaluk
- Institute of Biomechanics, Graz University of Technology, Austria
| | - Heimo Wolinski
- Institute of Molecular Biosciences, University of Graz, Austria; Field of Excellence BioHealth - University of Graz, Austria
| | | | - Peter Regitnig
- Institute of Pathology, Medical University of Graz, Austria
| | - Gerhard A Holzapfel
- Institute of Biomechanics, Graz University of Technology, Austria; Department of Structural Engineering, NTNU, Trondheim, Norway
| | - Gerhard Sommer
- Institute of Biomechanics, Graz University of Technology, Austria.
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41
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Walters KA, Moreno-Asso A, Stepto NK, Pankhurst MW, Rodriguez Paris V, Rodgers RJ. Key signalling pathways underlying the aetiology of polycystic ovary syndrome. J Endocrinol 2022; 255:R1-R26. [PMID: 35980384 DOI: 10.1530/joe-22-0059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/11/2022] [Indexed: 11/08/2022]
Abstract
Polycystic ovary syndrome (PCOS) is a common endocrine condition characterised by a range of reproductive, endocrine, metabolic and psychological abnormalities. Reports estimate that around 10% of women of reproductive age are affected by PCOS, representing a significant prevalence worldwide, which poses a high economic health burden. As the origin of PCOS remains largely unknown, there is neither a cure nor mechanism-based treatments leaving patient management suboptimal and focused solely on symptomatic treatment. However, if the underlying mechanisms underpinning the development of PCOS were uncovered then this would pave the way for the development of new interventions for PCOS. Recently, there have been significant advances in our understanding of the underlying pathways likely involved in PCOS pathogenesis. Key insights include the potential involvement of androgens, insulin, anti-Müllerian hormone and transforming growth factor beta in the development of PCOS. This review will summarise the significant scientific discoveries on these factors that have enhanced our knowledge of the mechanisms involved in the development of PCOS and discuss the impact these insights may have in shaping the future development of effective strategies for women with PCOS.
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Affiliation(s)
- Kirsty A Walters
- School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Alba Moreno-Asso
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
- Australian Institute of Musculoskeletal Science, Victoria University, St. Albans, Victoria, Australia
| | - Nigel K Stepto
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
- Australian Institute of Musculoskeletal Science, Victoria University, St. Albans, Victoria, Australia
- Monash Centre for Health Research and Implementation, Monash University and Monash Health, Clayton, Victoria, Australia
- Medicine at Western Health, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Michael W Pankhurst
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Valentina Rodriguez Paris
- School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Raymond J Rodgers
- The Robinson Research Institute, School of Biomedicine, The University of Adelaide, Adelaide, South Australia, Australia
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Jovanović T, Penava Ž, Vrljičak Z. Impact of the Elastane Percentage on the Elastic Properties of Knitted Fabrics under Cyclic Loading. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15196512. [PMID: 36233858 PMCID: PMC9570736 DOI: 10.3390/ma15196512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/06/2022] [Accepted: 09/15/2022] [Indexed: 05/27/2023]
Abstract
Elastic knitted fabrics find numerous applications in the industry for compression stockings, sports and leisure wear, swimwear, ballet wear, etc. During its use, knitwear is subjected to dynamic loading due to body movements. The loading and unloading of the knitted fabric affect the size of the elastic region in which unrecovered deformation completely disappears. This paper deals with the influence of the elastane percentage in the knitted fabric on the elastic properties of the knitted fabric under dynamic loading. For this experiment, three types of yarn were used in different combinations: polyamide (PA), wrapped elastane yarn and bare elastane. The mentioned yarns were used to knit three different groups of plated weft-knitted fabrics (two yarns in a knitted fabric row): without elastane, knitted fabric with a percentage of wrapped elastane, and knitted fabric with a percentage of bare elastane. The percentage of elastane ranged between 0% and 43%. First, standard uniaxial tensile tests were performed on knitted fabric samples until breakage under static load. The force-elongation diagrams obtained are used to determine the elastic limit up to which Hook's law applies. All knitted fabrics were cyclically tested to the elastic limit. From the obtained loading and unloading curves, unrecovered deformation (unrecovered elongation), elastic elongation and hysteresis index were determined and calculated. The results showed that the percentage of elastane significantly affects the size of the elastic region of the knitted fabric and has no effect on the hysteresis index. Therefore, it is necessary to optimize the elastane percentage for different knitted fabric designs to achieve the best dynamic recovery of the knitted fabric and to design a more stretchable knitted garment that fits the body as well as possible.
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Cyril D, Giugni A, Bangar SS, Mirzaeipoueinak M, Shrivastav D, Sharabi M, Tipper JL, Tavakoli J. Elastic Fibers in the Intervertebral Disc: From Form to Function and toward Regeneration. Int J Mol Sci 2022; 23:8931. [PMID: 36012198 PMCID: PMC9408956 DOI: 10.3390/ijms23168931] [Citation(s) in RCA: 6] [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: 07/20/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
Despite extensive efforts over the past 40 years, there is still a significant gap in knowledge of the characteristics of elastic fibers in the intervertebral disc (IVD). More studies are required to clarify the potential contribution of elastic fibers to the IVD (healthy and diseased) function and recommend critical areas for future investigations. On the other hand, current IVD in-vitro models are not true reflections of the complex biological IVD tissue and the role of elastic fibers has often been ignored in developing relevant tissue-engineered scaffolds and realistic computational models. This has affected the progress of IVD studies (tissue engineering solutions, biomechanics, fundamental biology) and translation into clinical practice. Motivated by the current gap, the current review paper presents a comprehensive study (from the early 1980s to 2022) that explores the current understanding of structural (multi-scale hierarchy), biological (development and aging, elastin content, and cell-fiber interaction), and biomechanical properties of the IVD elastic fibers, and provides new insights into future investigations in this domain.
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Affiliation(s)
- Divya Cyril
- Centre for Health Technologies, School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Amelia Giugni
- Centre for Health Technologies, School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Saie Sunil Bangar
- Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Melika Mirzaeipoueinak
- Centre for Health Technologies, School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Dipika Shrivastav
- Centre for Health Technologies, School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Mirit Sharabi
- Department of Mechanical Engineering and Mechatronics, Ariel University, Ariel 407000, Israel
| | - Joanne L. Tipper
- Centre for Health Technologies, School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Javad Tavakoli
- Centre for Health Technologies, School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW 2007, Australia
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Dhawan S, Singh H, Dutta S, Haridas V. Designer peptides as versatile building blocks for functional materials. Bioorg Med Chem Lett 2022; 68:128733. [PMID: 35421579 DOI: 10.1016/j.bmcl.2022.128733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/04/2022] [Accepted: 04/08/2022] [Indexed: 11/02/2022]
Abstract
Peptides and pseudopeptides show distinct self-assembled nanostructures such as fibers, nanotubes, vesicles, micelles, toroids, helices and rods. The formation of such molecular communities through the collective behavior of molecules is not fully understood at a molecular level. All these self-assembled nanostructured materials have a wide range of applications such as drug delivery, gene delivery, biosensing, bioimaging, catalysis, tissue engineering, nano-electronics and sensing. Self-assembly is one of the most efficient and a simple strategy to generate complex functional materials. Owing to its significance, the last few decades witnessed a remarkable advancement in the field of self-assembling peptides with a plethora of new designer synthetic systems being discovered. These systems range from amphiphilic, cyclic, linear and polymeric peptides. This article presents only selected examples of such self-assembling peptides and pseudopeptides.
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Affiliation(s)
- Sameer Dhawan
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Hanuman Singh
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Souvik Dutta
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - V Haridas
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India.
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45
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Suki B, Bates JHT, Bartolák-Suki E. Remodeling of the Aged and Emphysematous Lungs: Roles of Microenvironmental Cues. Compr Physiol 2022; 12:3559-3574. [PMID: 35766835 DOI: 10.1002/cphy.c210033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Aging is a slow process that affects all organs, and the lung is no exception. At the alveolar level, aging increases the airspace size with thicker and stiffer septal walls and straighter and thickened collagen and elastic fibers. This creates a microenvironment that interferes with the ability of cells in the parenchyma to maintain normal homeostasis and respond to injury. These changes also make the lung more susceptible to disease such as emphysema. Emphysema is characterized by slow but progressive remodeling of the deep alveolar regions that leads to airspace enlargement and increased but disorganized elastin and collagen deposition. This remodeling has been attributed to ongoing inflammation that involves inflammatory cells and the cytokines they produce. Cellular senescence, another consequence of aging, weakens the ability of cells to properly respond to injury, something that also occurs in emphysema. These factors conspire to make alveolar walls more prone to mechanical failure, which can set emphysema in motion by driving inflammation through immune stimulation by protein fragments. Both aging and emphysema are influenced by microenvironmental conditions such as local inflammation, chemical makeup, tissue stiffness, and mechanical stresses. Although aging and emphysema are not equivalent, they have the potential to influence each other in synergistic ways; aging sets up the conditions for emphysema to develop, while emphysema may accelerate cellular senescence and thus aging itself. This article focuses on the similarities and differences between the remodeled microenvironment of the aging and emphysematous lung, with special emphasis on the alveolar septal wall. © 2022 American Physiological Society. Compr Physiol 12:3559-3574, 2022.
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Affiliation(s)
- Béla Suki
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts, USA
| | - Jason H T Bates
- Depatment of Medicine, University of Vermont Larner College of Medicine, Burlington, Vermont, USA
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Duhig EE. Usual interstitial pneumonia: a review of the pathogenesis and discussion of elastin fibres, type II pneumocytes and proposed roles in the pathogenesis. Pathology 2022; 54:517-525. [PMID: 35778287 DOI: 10.1016/j.pathol.2022.05.002] [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: 01/16/2022] [Revised: 05/11/2022] [Accepted: 05/22/2022] [Indexed: 10/17/2022]
Abstract
The pathogenesis of idiopathic pulmonary fibrosis (IPF) and its histological counterpart, usual interstitial pneumonia (UIP) remains debated. IPF/UIP is a disease characterised by respiratory restriction, and while there have been recent advances in treatment, mortality remains high. Genetic and environmental factors predispose to its development and aberrant alveolar repair is thought to be central. Following alveolar injury, the type II pneumocyte (AEC2) replaces the damaged thin type I pneumocytes. Despite the interstitial fibroblast being considered instrumental in formation of the fibrosis, there has been little consideration for a role for AEC2 in the repair of the septal interstitium. Elastin is a complex protein that conveys flexibility and recoil to the lung. The fibroblast is presumed to produce elastin but there is evidence that the AEC2 may have a role in production or deposition. While the lung is an elastic organ, the role of elastin in repair of lung injury and its possible role in UIP has not been explored in depth. In this paper, pathogenetic mechanisms of UIP involving AEC2 and elastin are reviewed and the possible role of AEC2 in elastin generation is proposed.
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Affiliation(s)
- Edwina E Duhig
- Sullivan Nicolaides Pathology, The John Flynn Hospital, Tugun, Qld, Australia; UQ Thoracic Research Centre, The Prince Charles Hospital, Chermside, Qld, Australia; Faculty of Medicine, The University of Queensland, Herston, Qld, Australia.
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47
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Matrikines as mediators of tissue remodelling. Adv Drug Deliv Rev 2022; 185:114240. [PMID: 35378216 DOI: 10.1016/j.addr.2022.114240] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/21/2022] [Accepted: 03/26/2022] [Indexed: 11/21/2022]
Abstract
Extracellular matrix (ECM) proteins confer biomechanical properties, maintain cell phenotype and mediate tissue repair (via release of sequestered cytokines and proteases). In contrast to intracellular proteomes, where proteins are monitored and replaced over short time periods, many ECM proteins function for years (decades in humans) without replacement. The longevity of abundant ECM proteins, such as collagen I and elastin, leaves them vulnerable to damage accumulation and their host organs prone to chronic, age-related diseases. However, ECM protein fragmentation can potentially produce peptide cytokines (matrikines) which may exacerbate and/or ameliorate age- and disease-related ECM remodelling. In this review, we discuss ECM composition, function and degradation and highlight examples of endogenous matrikines. We then critically and comprehensively analyse published studies of matrix-derived peptides used as topical skin treatments, before considering the potential for improvements in the discovery and delivery of novel matrix-derived peptides to skin and internal organs. From this, we conclude that while the translational impact of matrix-derived peptide therapeutics is evident, the mechanisms of action of these peptides are poorly defined. Further, well-designed, multimodal studies are required.
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48
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Hu M, Ling Z, Ren X. Extracellular matrix dynamics: tracking in biological systems and their implications. J Biol Eng 2022; 16:13. [PMID: 35637526 PMCID: PMC9153193 DOI: 10.1186/s13036-022-00292-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 05/11/2022] [Indexed: 12/23/2022] Open
Abstract
The extracellular matrix (ECM) constitutes the main acellular microenvironment of cells in almost all tissues and organs. The ECM not only provides mechanical support, but also mediates numerous biochemical interactions to guide cell survival, proliferation, differentiation, and migration. Thus, better understanding the everchanging temporal and spatial shifts in ECM composition and structure – the ECM dynamics – will provide fundamental insight regarding extracellular regulation of tissue homeostasis and how tissue states transition from one to another during diverse pathophysiological processes. This review outlines the mechanisms mediating ECM-cell interactions and highlights how changes in the ECM modulate tissue development and disease progression, using the lung as the primary model organ. We then discuss existing methodologies for revealing ECM compositional dynamics, with a particular focus on tracking newly synthesized ECM proteins. Finally, we discuss the ramifications ECM dynamics have on tissue engineering and how to implement spatial and temporal specific extracellular microenvironments into bioengineered tissues. Overall, this review communicates the current capabilities for studying native ECM dynamics and delineates new research directions in discovering and implementing ECM dynamics to push the frontier forward.
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Affiliation(s)
- Michael Hu
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA, 15213, USA
| | - Zihan Ling
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA, 15213, USA
| | - Xi Ren
- Department of Biomedical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA, 15213, USA.
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49
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Lühmann P, Kremer T, Siemers F, Rein S. Comparative histomorphological analysis of elbow ligaments and capsule. Clin Anat 2022; 35:1070-1084. [DOI: 10.1002/ca.23913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/23/2022] [Accepted: 05/06/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Paul Lühmann
- Department of Plastic and Hand Surgery with Burn Unit Hospital Sankt Georg Leipzig Germany
| | - Thomas Kremer
- Department of Plastic and Hand Surgery with Burn Unit Hospital Sankt Georg Leipzig Germany
| | - Frank Siemers
- Department of Plastic and Hand Surgery with Burn Unit Trauma Center Bergmannstrost Halle Germany
- Martin‐Luther‐University Halle‐Wittenberg Halle Germany
| | - Susanne Rein
- Department of Plastic and Hand Surgery with Burn Unit Hospital Sankt Georg Leipzig Germany
- Martin‐Luther‐University Halle‐Wittenberg Halle Germany
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50
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Eisner LE, Rosario R, Andarawis-Puri N, Arruda EM. The Role of the Non-Collagenous Extracellular Matrix in Tendon and Ligament Mechanical Behavior: A Review. J Biomech Eng 2022; 144:1128818. [PMID: 34802057 PMCID: PMC8719050 DOI: 10.1115/1.4053086] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Indexed: 12/26/2022]
Abstract
Tendon is a connective tissue that transmits loads from muscle to bone, while ligament is a similar tissue that stabilizes joint articulation by connecting bone to bone. The 70-90% of tendon and ligament's extracellular matrix (ECM) is composed of a hierarchical collagen structure that provides resistance to deformation primarily in the fiber direction, and the remaining fraction consists of a variety of non-collagenous proteins, proteoglycans, and glycosaminoglycans (GAGs) whose mechanical roles are not well characterized. ECM constituents such as elastin, the proteoglycans decorin, biglycan, lumican, fibromodulin, lubricin, and aggrecan and their associated GAGs, and cartilage oligomeric matrix protein (COMP) have been suggested to contribute to tendon and ligament's characteristic quasi-static and viscoelastic mechanical behavior in tension, shear, and compression. The purpose of this review is to summarize existing literature regarding the contribution of the non-collagenous ECM to tendon and ligament mechanics, and to highlight key gaps in knowledge that future studies may address. Using insights from theoretical mechanics and biology, we discuss the role of the non-collagenous ECM in quasi-static and viscoelastic tensile, compressive, and shear behavior in the fiber direction and orthogonal to the fiber direction. We also address the efficacy of tools that are commonly used to assess these relationships, including enzymatic degradation, mouse knockout models, and computational models. Further work in this field will foster a better understanding of tendon and ligament damage and healing as well as inform strategies for tissue repair and regeneration.
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Affiliation(s)
- Lainie E Eisner
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109; Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853
| | - Ryan Rosario
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109
| | - Nelly Andarawis-Puri
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853
| | - Ellen M Arruda
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109; Professor Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109; Professor Program in Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI 48109
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