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Lubricants for osteoarthritis treatment: From natural to bioinspired and alternative strategies. Adv Colloid Interface Sci 2023; 311:102814. [PMID: 36446286 DOI: 10.1016/j.cis.2022.102814] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/28/2022] [Accepted: 11/11/2022] [Indexed: 11/18/2022]
Abstract
Osteoarthritis is the most common degenerative and highly prevalent joint disease, characterized by progressive loss and destruction of articular cartilage. The damaged cartilage surface has an increased friction, which causes patients to suffer from serious pain. Restoring the lubrication ability of the joint is central to the treatment of osteoarthritis, a key topic in medical research. A variety of lubricants have been designed to reduce friction in joints and promote cartilage tissue repair to alleviate the symptoms of osteoarthritis. Herein, we review the recent progress of lubricants from the three perspectives of natural, bioinspired, and alternative strategies for osteoarthritis treatment, as well as the structural characterization and lubrication properties of such lubricants. Specifically, natural lubricants include glycosaminoglycans, lubricin and lipids in joints, bioinspired lubricants include scaffolds mimicking hyaluronic acid or lubricin, and alternative lubricants include modified lubricants based on hyaluronic acid, lipids, nanoparticles, and peptides. We also discuss the current challenges and long-term perspectives for further research in this area.
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Recombinant lubricin improves anti-adhesive, wear protection, and lubrication of collagen II surface. Colloids Surf B Biointerfaces 2022; 220:112906. [DOI: 10.1016/j.colsurfb.2022.112906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/30/2022] [Accepted: 10/07/2022] [Indexed: 11/07/2022]
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Ground glass opacity: can we correlate radiological and histological features to plan clinical decision making? Gen Thorac Cardiovasc Surg 2022; 70:971-976. [PMID: 35524871 DOI: 10.1007/s11748-022-01826-2] [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: 02/24/2022] [Accepted: 04/25/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND The spectrum of ground glass opacity (GGO) is a diagnostic and clinical management quandary. The role of computed tomographic scans in detecting malignant GGO has inter-observer variability. Pure GGO have been traditionally thought to be predominantly benign in nature and has long volume doubling times. This study was undertaken to correlate the findings of radiology and histology of ground glass opacities at our institute. METHODS This study is a retrospective observational study of patients who underwent lung resection surgery for radiology proven ground glass opacities between January 2010 and December 2018. A total of 115 patients were included in the study based on inclusion and exclusion criteria and were analysed. RESULTS The patients were divided into two groups; pure GGO (n = 50), mixed GGO (n = 65). The pathological tumour size was ≤ 2 cm in 51% of the patients and 27 patients had the size between 2.1 and 3.0 cm. The predominant histopathologic feature was lepidic predominance in 54 patients followed by 24 patients with acinar predominance. Among patients with radiological tumour size of ≤ 2 cm, pure GGO was present in 48% of the patients. Among patients with pure GGO, 96% of the patients had no solid component. 44 patients had only single CT scan before proceeding to surgery. All these patients had mixed GGO. CONCLUSION Our study concludes pure GGOs, though lacking solid component have a high propensity to be malignant. The role of repeated CT surveillance in this context without offering curative surgery may be questionable.
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Knott S, Curry D, Zhao N, Metgud P, Dastgheyb SS, Purtill C, Harwood M, Chen AF, Schaer TP, Otto M, Hickok NJ. Staphylococcus aureus Floating Biofilm Formation and Phenotype in Synovial Fluid Depends on Albumin, Fibrinogen, and Hyaluronic Acid. Front Microbiol 2021; 12:655873. [PMID: 33995317 PMCID: PMC8117011 DOI: 10.3389/fmicb.2021.655873] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/19/2021] [Indexed: 11/13/2022] Open
Abstract
Biofilms are typically studied in bacterial media that allow the study of important properties such as bacterial growth. However, the results obtained in such media cannot take into account the bacterial localization/clustering caused by bacteria-protein interactions in vivo and the accompanying alterations in phenotype, virulence factor production, and ultimately antibiotic tolerance. We and others have reported that methicillin-resistant or methicillin-susceptible Staphylococcus aureus (MRSA or MSSA, respectively) and other pathogens assemble a proteinaceous matrix in synovial fluid. This proteinaceous bacterial aggregate is coated by a polysaccharide matrix as is characteristic of biofilms. In this study, we identify proteins important for this aggregation and determine the concentration ranges of these proteins that can reproduce bacterial aggregation. We then test this protein combination for its ability to cause marked aggregation, antibacterial tolerance, preservation of morphology, and expression of the phenol-soluble modulin (PSM) virulence factors. In the process, we create a viscous fluid that models bacterial behavior in synovial fluid. We suggest that our findings and, by extension, use of this fluid can help to better model bacterial behavior of new antimicrobial therapies, as well as serve as a starting point to study host protein-bacteria interactions characteristic of physiological fluids.
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Affiliation(s)
- Samantha Knott
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, United States
| | - Dylan Curry
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, United States
| | - Neil Zhao
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, United States
| | - Pallavi Metgud
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, United States
| | - Sana S. Dastgheyb
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, United States
| | - Caroline Purtill
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, United States
| | - Marc Harwood
- Rothman Orthopaedic Institute, Philadelphia, PA, United States
| | - Antonia F. Chen
- Department of Orthopaedic Surgery, Brigham and Women’s Hospital, Boston, PA, United States
| | - Thomas P. Schaer
- Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, United States
| | - Michael Otto
- Pathogen Molecular Genetics Section, Laboratory of Human Bacterial Pathogenesis, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Noreen J. Hickok
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, United States
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Link JM, Salinas EY, Hu JC, Athanasiou KA. The tribology of cartilage: Mechanisms, experimental techniques, and relevance to translational tissue engineering. Clin Biomech (Bristol, Avon) 2020; 79:104880. [PMID: 31676140 PMCID: PMC7176516 DOI: 10.1016/j.clinbiomech.2019.10.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 10/03/2019] [Accepted: 10/17/2019] [Indexed: 02/07/2023]
Abstract
Diarthrodial joints, found at the ends of long bones, function to dissipate load and allow for effortless articulation. Essential to these functions are cartilages, soft hydrated tissues such as hyaline articular cartilage and the knee meniscus, as well as lubricating synovial fluid. Maintaining adequate lubrication protects cartilages from wear, but a decrease in this function leads to tissue degeneration and pathologies such as osteoarthritis. To study cartilage physiology, articular cartilage researchers have employed tribology, the study of lubrication and wear between two opposing surfaces, to characterize both native and engineered tissues. The biochemical components of synovial fluid allow it to function as an effective lubricant that exhibits shear-thinning behavior. Although tribological properties are recognized to be essential to native tissue function and a critical characteristic for translational tissue engineering, tribology is vastly understudied when compared to other mechanical properties such as compressive moduli. Further, tribometer configurations and testing modalities vary greatly across laboratories. This review aims to define commonly examined tribological characteristics and discuss the structure-function relationships of biochemical constituents known to contribute to tribological properties in native tissue, address the variations in experimental set-ups by suggesting a move toward standard testing practices, and describe how tissue-engineered cartilages may be augmented to improve their tribological properties.
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Affiliation(s)
- Jarrett M. Link
- 3131 Engineering Hall, Department of Biomedical Engineering, University of California, Irvine, California 92617, USA
| | - Evelia Y. Salinas
- 3131 Engineering Hall, Department of Biomedical Engineering, University of California, Irvine, California 92617, USA
| | - Jerry C. Hu
- 3131 Engineering Hall, Department of Biomedical Engineering, University of California, Irvine, California 92617, USA
| | - Kyriacos A. Athanasiou
- 3131 Engineering Hall, Department of Biomedical Engineering, University of California, Irvine, California 92617, USA
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Xiao J, Hu B, Cheng D, Shi H, Xiu Y. Features of IgG4-related lung disease on 18F-FDG PET/computed tomography imaging. Nucl Med Commun 2020; 41:933-941. [PMID: 32796482 DOI: 10.1097/mnm.0000000000001238] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVES The aim of the study was to summarize the features of immunoglobulin G4-related lung disease (IgG4-RLD) on fluorine 18-fluorodeoxyglucose (F-FDG) PET/computed tomography (CT). METHODS In this retrospective case series, 12 consecutive patients (9 men and 3 women, mean age 55.4 ± 13.7 years) with IgG4-RLD were included. The clinicopathological information and features of F-FDG PET/CT imaging were analyzed. RESULTS Six (50%) patients had pulmonary involvement alone and six (50%) patients had extrapulmonary involvement with intense F-FDG uptake. Pulmonary manifestations included mass (25%, 3/12), solid nodule (solitary 25%, 3/12; multiple 50%, 6/12), multiple ground-glass opacities (GGOs) (50%, 6/12), thickening of alveolar interstitium (50%, 6/12), and thickening of bronchovascular bundle (33.3%, 4/12). The maximum standardized uptake value (SUVmax) of the solid nodules and masses, multiple GGOs, bronchovascular bundle and the thickening of septa was 4.0 ± 2.5, 2.3 ± 1.8, 1.4 ± 0.6, and 0.9 ± 0.5, respectively. The SUVmax statistically significant linear association with the diameter of masses or solid nodules (P value = 0.03), but no significant inverse linear association (P value = 0.06) with the concentration of serum IgG4 concentration. CONCLUSIONS The image patterns of IgG4-RLD on F-FDG PET/CT are varying. Multiple pulmonary manifestations or multiple organ involvement, especially in combination with elevated levels of serum IgG and IgG4, may help to make the diagnosis. A potential major application of PET-CT would be evaluation of response to treatment, and the impact of PET/CT on IgG4-RLD management is worth investigating further in the future.
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Affiliation(s)
- Jie Xiao
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University
- Nuclear Medicine Institute of Fudan University
- Medical Imaging Institute of Shanghai, China
| | - Bingxin Hu
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University
- Nuclear Medicine Institute of Fudan University
- Medical Imaging Institute of Shanghai, China
| | - Dengfeng Cheng
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University
- Nuclear Medicine Institute of Fudan University
- Medical Imaging Institute of Shanghai, China
| | - Hongcheng Shi
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University
- Nuclear Medicine Institute of Fudan University
- Medical Imaging Institute of Shanghai, China
| | - Yan Xiu
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University
- Nuclear Medicine Institute of Fudan University
- Medical Imaging Institute of Shanghai, China
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Galandáková A, Ulrichová J, Langová K, Hanáková A, Vrbka M, Hartl M, Gallo J. Characteristics of synovial fluid required for optimization of lubrication fluid for biotribological experiments. J Biomed Mater Res B Appl Biomater 2016; 105:1422-1431. [DOI: 10.1002/jbm.b.33663] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 02/18/2016] [Accepted: 03/10/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Adéla Galandáková
- Department of Medical Chemistry and Biochemistry; Faculty of Medicine and Dentistry, Palacký University Olomouc; Czech Republic
| | - Jitka Ulrichová
- Department of Medical Chemistry and Biochemistry; Faculty of Medicine and Dentistry, Palacký University Olomouc; Czech Republic
| | - Kateřina Langová
- Department of Medical Biophysics; Faculty of Medicine and Dentistry, Palacký University Olomouc; Czech Republic
| | - Adéla Hanáková
- Department of Medical Biophysics; Faculty of Medicine and Dentistry, Palacký University Olomouc; Czech Republic
| | - Martin Vrbka
- Institute of Machine and Industrial Design, Faculty of Mechanical Engineering, Brno University of Technology; Czech Republic
| | - Martin Hartl
- Institute of Machine and Industrial Design, Faculty of Mechanical Engineering, Brno University of Technology; Czech Republic
| | - Jiri Gallo
- Department of Orthopaedics; Faculty of Medicine and Dentistry, Palacký University Olomouc, University Hospital Olomouc; Olomouc Czech Republic
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Bonnevie ED, Galesso D, Secchieri C, Cohen I, Bonassar LJ. Elastoviscous Transitions of Articular Cartilage Reveal a Mechanism of Synergy between Lubricin and Hyaluronic Acid. PLoS One 2015; 10:e0143415. [PMID: 26599797 PMCID: PMC4658013 DOI: 10.1371/journal.pone.0143415] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 11/04/2015] [Indexed: 12/02/2022] Open
Abstract
When lubricated by synovial fluid, articular cartilage provides some of the lowest friction coefficients found in nature. While it is known that macromolecular constituents of synovial fluid provide it with its lubricating ability, it is not fully understood how two of the main molecules, lubricin and hyaluronic acid, lubricate and interact with one another. Here, we develop a novel framework for cartilage lubrication based on the elastoviscous transition to show that lubricin and hyaluronic acid lubricate by distinct mechanisms. Such analysis revealed nonspecific interactions between these molecules in which lubricin acts to concentrate hyaluronic acid near the tissue surface and promotes a transition to a low friction regime consistent with the theory of viscous boundary lubrication. Understanding the mechanics of synovial fluid not only provides insight into the progression of diseases such as arthritis, but also may be applicable to the development of new biomimetic lubricants.
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Affiliation(s)
- Edward D. Bonnevie
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, United States of America
| | - Devis Galesso
- Department of Research and Development, Fidia Farmaceutici SpA, Padua, Italy
| | - Cynthia Secchieri
- Department of Research and Development, Fidia Farmaceutici SpA, Padua, Italy
| | - Itai Cohen
- Department of Physics, Cornell University, Ithaca, NY, United States of America
| | - Lawrence J. Bonassar
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, United States of America
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, United States of America
- * E-mail:
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Correction: Effects of Hyaluronic Acid and γ-Globulin Concentrations on the Frictional Response of Human Osteoarthritic Articular Cartilage. PLoS One 2015; 10:e0118040. [PMID: 25668186 PMCID: PMC4323194 DOI: 10.1371/journal.pone.0118040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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