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Wang T, Dogru S, Dai Z, Kim SY, Vickers NA, Albro MB. Physiologic Doses of TGF-β Improve the Composition of Engineered Articular Cartilage. bioRxiv 2023:2023.09.27.559554. [PMID: 37808691 PMCID: PMC10557735 DOI: 10.1101/2023.09.27.559554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
For cartilage regeneration applications, transforming growth factor beta (TGF-β) is conventionally administered at highly supraphysiologic doses (10-10,000 ng/mL) in an attempt to cue cells to fabricate neocartilage that matches the composition, structure, and functional properties of native hyaline cartilage. While supraphysiologic doses enhance ECM biosynthesis, they are also associated with inducing detrimental tissue features, such as fibrocartilage matrix deposition, pathologic-like chondrocyte clustering, and tissue swelling. Here we investigate the hypothesis that moderated TGF-β doses (0.1-1 ng/mL), akin to those present during physiological cartilage development, can improve neocartilage composition. Variable doses of media-supplemented TGF-β were administered to a model system of reduced-size cylindrical constructs (Ø2-Ø3 mm), which mitigate the TGF-β spatial gradients observed in conventional-size constructs (Ø4-Ø6 mm), allowing for a novel assessment of the intrinsic effect of TGF-β doses on macroscale neocartilage properties and composition. The administration of physiologic TGF-β to reduced-size constructs yields neocartilage with native-matched sGAG content and mechanical properties while providing a more hyaline cartilage-like composition, marked by: 1) reduced fibrocartilage-associated type I collagen, 2) 77% reduction in the fraction of cells present in a clustered morphology, and 3) 45% reduction in the degree of tissue swelling. Physiologic TGF-β appears to achieve an important balance of promoting requisite ECM biosynthesis, while mitigating hyaline cartilage compositional deficits. These results can guide the development of novel physiologic TGF-β-delivering scaffolds to improve the regeneration clinical-sized neocartilage tissues.
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Haq-Siddiqi NA, Britton D, Kim Montclare J. Protein-engineered biomaterials for cartilage therapeutics and repair. Adv Drug Deliv Rev 2023; 192:114647. [PMID: 36509172 DOI: 10.1016/j.addr.2022.114647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 10/17/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Cartilage degeneration and injury are major causes of pain and disability that effect millions, and yet treatment options for conditions like osteoarthritis (OA) continue to be mainly palliative or involve complete replacement of injured joints. Several biomaterial strategies have been explored to address cartilage repair either by the delivery of therapeutics or as support for tissue repair, however the complex structure of cartilage tissue, its mechanical needs, and lack of regenerative capacity have hindered this goal. Recent advances in synthetic biology have opened new possibilities for engineered proteins to address these unique needs. Engineered protein and peptide-based materials benefit from inherent biocompatibility and nearly unlimited tunability as they utilize the body's natural building blocks to fabricate a variety of supramolecular structures. The pathophysiology and needs of OA cartilage are presented here, along with an overview of the current state of the art and next steps for protein-engineered repair strategies for cartilage.
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Affiliation(s)
- Nada A Haq-Siddiqi
- Department of Chemical and Biomolecular Engineering, New York University Tandon School of Engineering, Brooklyn, NY 11201, United States
| | - Dustin Britton
- Department of Chemical and Biomolecular Engineering, New York University Tandon School of Engineering, Brooklyn, NY 11201, United States
| | - Jin Kim Montclare
- Department of Chemical and Biomolecular Engineering, New York University Tandon School of Engineering, Brooklyn, NY 11201, United States; Department of Chemistry, New York University, New York 10003, United States; Department of Radiology, New York University Grossman School of Medicine, New York 10016, United States; Department of Biomaterials, NYU College of Dentistry, New York, NY 10010, United States; Department of Biomedical Engineering, New York University Tandon School of Engineering, Brooklyn, NY 11201, United States.
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Yi J, Liu Q, Zhang Q, Chew TG, Ouyang H. Modular protein engineering-based biomaterials for skeletal tissue engineering. Biomaterials 2022; 282:121414. [DOI: 10.1016/j.biomaterials.2022.121414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/27/2021] [Accepted: 05/19/2021] [Indexed: 12/24/2022]
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Yan C, Wang X, Xiang C, Wang Y, Pu C, Chen L, Jiang K, Li Y. Applications of Functionalized Hydrogels in the Regeneration of the Intervertebral Disc. Biomed Res Int 2021; 2021:2818624. [PMID: 34458364 DOI: 10.1155/2021/2818624] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 07/26/2021] [Indexed: 02/08/2023]
Abstract
Intervertebral disc degeneration (IDD) is caused by genetics, aging, and environmental factors and is one of the leading causes of low back pain. The treatment of IDD presents many challenges. Hydrogels are biomaterials that possess properties similar to those of the natural extracellular matrix and have significant potential in the field of regenerative medicine. Hydrogels with various functional qualities have recently been used to repair and regenerate diseased intervertebral discs. Here, we review the mechanisms of intervertebral disc homeostasis and degeneration and then discuss the applications of hydrogel-mediated repair and intervertebral disc regeneration. The classification of artificial hydrogels and natural hydrogels is then briefly introduced, followed by an update on the development of functional hydrogels, which include noncellular therapeutic hydrogels, cellular therapeutic hydrogel scaffolds, responsive hydrogels, and multifunctional hydrogels. The challenges faced and future developments of the hydrogels used in IDD are discussed as they further promote their clinical translation.
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Ajeeb B, Acar H, Detamore MS. Chondroinductive Peptides for Cartilage Regeneration. Tissue Eng Part B Rev 2021; 28:745-765. [PMID: 34375146 DOI: 10.1089/ten.teb.2021.0125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Inducing and maintaining a hyaline cartilage phenotype is the greatest challenge for cartilage regeneration. Synthetic chondroinductive biomaterials might be the answer to the unmet clinical need for a safe, stable, and cost-effective material capable of inducing true hyaline cartilage formation. The past decade witnessed an emergence of peptides to achieve chondrogenesis, as peptides have the advantages of versatility, high target specificity, minimized toxicity and immunogenicity, and ease of synthesis. Here, we review peptides as the basis for creating promising synthetic chondroinductive biomaterials for in situ scaffold-based cartilage regeneration. We provide a thorough review of peptides evaluated for cartilage regeneration while distinguishing between peptides reported to induce chondrogenesis independently, and peptides reported to act in synergy with other growth factors to induce cartilage regeneration. Additionally, we highlight that most peptide studies have been in vitro, and appropriate controls are not always present. A few rigorously-performed in vitro studies have proceeded to in vivo studies, but the peptides in those in vivo studies were mainly introduced via systemic, subcutaneous, or intraarticular injections, with a paucity of studies employing in situ defects with appropriate controls. Clinical translation of peptides will require the evaluation of these peptides in well-controlled in vivo cartilage defect studies. In the decade ahead, we may be poised to leverage peptides to design devices that are safe, reproducible, cost-efficient, and scalable biomaterials, which are themselves chondroinductive to achieve true hyaline cartilage regeneration without the need for growth factors and other small molecules.
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Affiliation(s)
- Boushra Ajeeb
- University of Oklahoma, 6187, Biomedical Engineering, Norman, Oklahoma, United States;
| | - Handan Acar
- University of Oklahoma, 6187, Biomedical Engineering, Norman, Oklahoma, United States;
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Zanotto GM, Liesbeny P, Barrett M, Zlotnick H, Frank E, Grodzinsky AJ, Frisbie DD. Microfracture Augmentation With Trypsin Pretreatment and Growth Factor-Functionalized Self-assembling Peptide Hydrogel Scaffold in an Equine Model. Am J Sports Med 2021; 49:2498-2508. [PMID: 34161182 DOI: 10.1177/03635465211021798] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Microfracture augmentation can be a cost-effective single-step alternative to current cartilage repair techniques. Trypsin pretreatment combined with a growth factor-functionalized self-assembling KLD hydrogel ("functionalized hydrogel") has been shown to improve overall cartilage repair and integration to surrounding tissue in small animal models of osteochondral defects. HYPOTHESIS Microfracture combined with trypsin treatment and a functionalized hydrogel will improve reparative tissue quality and integration as compared with microfracture alone in an equine model. STUDY DESIGN Controlled laboratory study. METHODS Bilateral cartilage defects (15-mm diameter) were created on the medial trochlear ridge of the femoropatellar joints in 8 adult horses (16 defects total). One defect was randomly selected to receive the treatment, and the contralateral defect served as the control (microfracture only). Treatment consisted of 2-minute trypsin pretreatment of the surrounding cartilage, subchondral bone microfracture, and functionalized hydrogel premixed with growth factors (platelet-derived growth factor and heparin-binding insulin-like growth factor 1). After surgery, all horses were subjected to standardized controlled exercise on a high-speed treadmill. Clinical evaluation was conducted monthly, and radiographic examinations were performed at 2, 16, 24, 32, 40, and 52 weeks after defect creation. After 12 months, all animals were euthanized. Magnetic resonance imaging, arthroscopy, gross pathologic evaluation of the joint, histology, immunohistochemistry, and biomechanical analyses were performed. Generalized linear mixed models (with horse as random effect) were utilized to assess outcome parameters. When P values were <.05, pairwise comparisons were made using least squares means. RESULTS Improved functional outcome parameters were observed for the treatment group, even though mildly increased joint effusion and subchondral bone sclerosis were noted on imaging. Microscopically, treatment resulted in improvement of several histologic parameters and overall quality of repaired tissue. Proteoglycan content based on safranin O-fast green staining was also significantly higher in the treated defects. CONCLUSION Trypsin treatment combined with functionalized hydrogel resulted in improved microfracture augmentation. CLINICAL RELEVANCE Therapeutic strategies for microfracture augmentation, such as those presented in this study, can be cost-effective ways to improve cartilage healing outcomes, especially in more active patients.
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Affiliation(s)
- Gustavo M Zanotto
- Department of Clinical Sciences, Orthopaedic Research Center, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA.,Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, Station, Texas, USA
| | - Paul Liesbeny
- Departments of Biological, Electrical, and Mechanical Engineering, Center for Biomedical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Myra Barrett
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Science, Colorado State University, Fort Collins, Colorado, USA
| | - Hannah Zlotnick
- Departments of Biological, Electrical, and Mechanical Engineering, Center for Biomedical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Eliot Frank
- Departments of Biological, Electrical, and Mechanical Engineering, Center for Biomedical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Alan J Grodzinsky
- Departments of Biological, Electrical, and Mechanical Engineering, Center for Biomedical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - David D Frisbie
- Department of Clinical Sciences, Orthopaedic Research Center, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
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Karavasili C, Fatouros DG. Self-assembling peptides as vectors for local drug delivery and tissue engineering applications. Adv Drug Deliv Rev 2021; 174:387-405. [PMID: 33965460 DOI: 10.1016/j.addr.2021.04.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/01/2021] [Accepted: 04/28/2021] [Indexed: 12/17/2022]
Abstract
Molecular self-assembly has forged a new era in the development of advanced biomaterials for local drug delivery and tissue engineering applications. Given their innate biocompatibility and biodegradability, self-assembling peptides (SAPs) have come in the spotlight of such applications. Short and water-soluble SAP biomaterials associated with enhanced pharmacokinetic (PK) and pharmacodynamic (PD) responses after the topical administration of the therapeutic systems, or improved regenerative potential in tissue engineering applications will be the focus of the current review. SAPs are capable of generating supramolecular structures using a boundless array of building blocks, while peptide engineering is an approach commonly pursued to encompass the desired traits to the end composite biomaterials. These two elements combined, expand the spectrum of SAPs multi-functionality, constituting them potent biomaterials for use in various biomedical applications.
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Morshed M, Hasan A, Sharifi M, Nejadi Babadaei MM, Bloukh SH, Islam MA, Chowdhury EH, Falahati M. Non-viral delivery systems of DNA into stem cells: Promising and multifarious actions for regenerative medicine. J Drug Deliv Sci Technol 2020; 60:101861. [DOI: 10.1016/j.jddst.2020.101861] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Peng F, Zhang W, Qiu F. Self-assembling Peptides in Current Nanomedicine: Versatile Nanomaterials for Drug Delivery. Curr Med Chem 2020; 27:4855-4881. [PMID: 31309877 DOI: 10.2174/0929867326666190712154021] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 05/27/2019] [Accepted: 06/11/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND The development of modern nanomedicine greatly depends on the involvement of novel materials as drug delivery system. In order to maximize the therapeutic effects of drugs and minimize their side effects, a number of natural or synthetic materials have been widely investigated for drug delivery. Among these materials, biomimetic self-assembling peptides (SAPs) have received more attention in recent years. Considering the rapidly growing number of SAPs designed for drug delivery, a summary of how SAPs-based drug delivery systems were designed, would be beneficial. METHOD We outlined research works on different SAPs that have been investigated as carriers for different drugs, focusing on the design of SAPs nanomaterials and how they were used for drug delivery in different strategies. RESULTS Based on the principle rules of chemical complementarity and structural compatibility, SAPs such as ionic self-complementary peptide, peptide amphiphile and surfactant-like peptide could be designed. Determined by the features of peptide materials and the drugs to be delivered, different strategies such as hydrogel embedding, hydrophobic interaction, electrostatic interaction, covalent conjugation or the combination of them could be employed to fabricate SAPs-drug complex, which could achieve slow release, targeted or environment-responsive delivery of drugs. Furthermore, some SAPs could also be combined with other types of materials for drug delivery, or even act as drug by themselves. CONCLUSION Various types of SAPs have been designed and used for drug delivery following various strategies, suggesting that SAPs as a category of versatile nanomaterials have promising potential in the field of nanomedicine.
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Affiliation(s)
- Fei Peng
- Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wensheng Zhang
- Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Feng Qiu
- Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Centre, West China Hospital, Sichuan University, Chengdu, 610041, China
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Abstract
Wound healing is a multifaceted biological process involving the replacement of damaged tissues and cellular structures, restoring the skin barrier's function, and maintaining internal homeostasis. Over the past two decades, numerous approaches are undertaken to improve the quality and healing rate of complex acute and chronic wounds, including synthetic and natural polymeric scaffolds, skin grafts, and supramolecular hydrogels. In this context, this review assesses the advantages and drawbacks of various types of supramolecular hydrogels including both polymeric and peptide-based hydrogels for wound healing applications. The molecular design features of natural and synthetic polymers are examined, as well as therapeutic-based and drug-free peptide hydrogels, and the strategies for each system are analyzed to integrate key elements such as biocompatibility, bioactivity, stimuli-responsiveness, site specificity, biodegradability, and clearance.
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Affiliation(s)
- David Stern
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology The Johns Hopkins University 3400 N. Charles Street Baltimore MD 21218 USA
| | - Honggang Cui
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology The Johns Hopkins University 3400 N. Charles Street Baltimore MD 21218 USA
- Department of Materials Science and Engineering The Johns Hopkins University 3400 N. Charles Street Baltimore MD 21218 USA
- Department of Oncology and Sidney Kimmel Comprehensive Cancer Center Johns Hopkins University School of Medicine Baltimore MD 21205 USA
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Karavasili C, Panteris E, Vizirianakis IS, Koutsopoulos S, Fatouros DG. Chemotherapeutic Delivery from a Self-Assembling Peptide Nanofiber Hydrogel for the Management of Glioblastoma. Pharm Res 2018; 35. [DOI: 10.1007/s11095-018-2442-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 06/07/2018] [Indexed: 01/04/2023]
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Kim M, Garrity ST, Steinberg DR, Dodge GR, Mauck RL. Role of dexamethasone in the long-term functional maturation of MSC-laden hyaluronic acid hydrogels for cartilage tissue engineering. J Orthop Res 2018; 36:1717-1727. [PMID: 29178462 PMCID: PMC6948196 DOI: 10.1002/jor.23815] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 11/23/2017] [Indexed: 02/04/2023]
Abstract
The purpose of study was to investigate the maturation of mesenchymal stem cells (MSC) laden in HA constructs with various combinations of chemically defined medium (CM) components and determine the impact of dexamethasone and serum on construct properties. Constructs were cultured in CM with the addition or withdrawal of media components or were transferred to serum containing media that partially represents an in vivo-like condition where pro-inflammatory signals are present. Constructs cultured in CM+ (CM with TGF-β3) and DEX- (CM+ without dexamethasone) conditions produced robust matrix, while those in ITS/BSA/LA- (CM+ without ITS/BSA/LA) and Serum+ (10% FBS with TGF-β3) produced little matrix. While construct properties in DEX- were greater than those in CM+ at 4 weeks, properties in CM+ and DEX- reversed by 8 weeks. While construct properties in DEX- were greater than those in CM+ at 4 weeks, the continued absence or removal of dexamethasone resulted in marked GAG loss by 8 weeks. Conversely, the continued presence or new addition of dexamethasone at 4 weeks further improved or maintained construct properties through 8 weeks. Finally, when constructs were converted to Serum (in the continued presence of TGF-β3 with or without dexamethasone) after pre-culture in CM+ for 4 weeks, GAG loss was attenuated with addition of dexamethasone. Interestingly, however, collagen content and type was not impacted. In conclusion, dexamethasone influences the functional maturation of MSC-laden HA constructs, and may help to maintain properties during long-term culture or with in vivo translation by repressing pro-inflammatory signals. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1717-1727, 2018.
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Affiliation(s)
- Minwook Kim
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104,Translational Musculoskeletal Research Center (TMRC), Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA 19104, U.S.A
| | - Sean T. Garrity
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - David R. Steinberg
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Translational Musculoskeletal Research Center (TMRC), Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA 19104, U.S.A
| | - George R. Dodge
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Translational Musculoskeletal Research Center (TMRC), Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA 19104, U.S.A
| | - Robert L. Mauck
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104,Translational Musculoskeletal Research Center (TMRC), Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA 19104, U.S.A,Address for Correspondence: Robert L. Mauck, Ph.D., Mary Black Ralston Professor of Orthopaedic Surgery, Professor of Bioengineering, McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, 36 Street and Hamilton Walk, Philadelphia, PA 19104, Phone: (215) 898-3294, Fax: (215) 573-2133,
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Pan P, Chen X, Metavarayuth K, Su J, Wang Q. Self-assembled supramolecular systems for bone engineering applications. Curr Opin Colloid Interface Sci 2018. [DOI: 10.1016/j.cocis.2018.01.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Stüdle C, Vallmajó-Martín Q, Haumer A, Guerrero J, Centola M, Mehrkens A, Schaefer DJ, Ehrbar M, Barbero A, Martin I. Spatially confined induction of endochondral ossification by functionalized hydrogels for ectopic engineering of osteochondral tissues. Biomaterials 2018; 171:219-229. [PMID: 29705655 DOI: 10.1016/j.biomaterials.2018.04.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/13/2018] [Accepted: 04/13/2018] [Indexed: 01/09/2023]
Abstract
Despite the various reported approaches to generate osteochondral composites by combination of different cell types and materials, engineering of templates with the capacity to autonomously and orderly develop into cartilage-bone bi-layered structures remains an open challenge. Here, we hypothesized that the embedding of cells inducible to endochondral ossification (i.e. bone marrow derived mesenchymal stromal cells, BMSCs) and of cells capable of robust and stable chondrogenesis (i.e. nasal chondrocytes, NCs) adjacent to each other in bi-layered hydrogels would develop directly in vivo into osteochondral tissues. Poly(ethylene glycol) (PEG) hydrogels were functionalized with TGFβ3 or BMP-2, enzymatically polymerized encapsulating human BMSCs, combined with a hydrogel layer containing human NCs and ectopically implanted in nude mice without pre-culture. The BMSC-loaded layers reproducibly underwent endochondral ossification and generated ossicles containing bone and marrow. The NC-loaded layers formed cartilage tissues, which (under the influence of BMP-2 but not of TGFβ3 from the neighbouring layer) remained phenotypically stable. The proposed strategy, resulting in orderly connected osteochondral composites, should be further assessed for the repair of osteoarticular defects and will be useful to model developmental processes leading to cartilage-bone interfaces.
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Affiliation(s)
- Chiara Stüdle
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Queralt Vallmajó-Martín
- Department of Obstetrics, University Hospital Zürich, University of Zürich, Zürich, Switzerland; Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Alexander Haumer
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Julien Guerrero
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Matteo Centola
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland; Anika Therapeutics Srl, Padua, Italy
| | - Arne Mehrkens
- Spine Surgery, University Hospital Basel, Basel, Switzerland
| | - Dirk J Schaefer
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland
| | - Martin Ehrbar
- Department of Obstetrics, University Hospital Zürich, University of Zürich, Zürich, Switzerland
| | - Andrea Barbero
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Ivan Martin
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland.
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Abstract
Hydrogels have been widely studied in various biomedical applications, such as tissue engineering, cell culture, immunotherapy and vaccines, and drug delivery. Peptide-based nanofibers represent a promising new strategy for current drug delivery approaches and cell carriers for tissue engineering. This review focuses on the recent advances in the use of self-assembling engineered β-sheet peptide assemblies for biomedical applications. The applications of peptide nanofibers in biomedical fields, such as drug delivery, tissue engineering, immunotherapy, and vaccines, are highlighted. The current challenges and future perspectives for self-assembling peptide nanofibers in biomedical applications are discussed.
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Affiliation(s)
- Zhiqiang Yu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Zheng Cai
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Qiling Chen
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Menghua Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Ling Ye
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Jiaoyan Ren
- Department of Food Science and Technology, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, China.
| | - Wenzhen Liao
- Department of Food Science and Technology, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, China.
| | - Shuwen Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
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16
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Abstract
Cartilaginous tissue requires structural and metabolic support after traumatic or chronic injuries because of its limited capacity for regeneration. However, current techniques for cartilage regeneration are either invasive or ineffective for long-term repair. Developing alternative approaches to regenerate cartilage tissue is needed. Therefore, versatile scaffolds formed by biomaterials are promising tools for cartilage regeneration. Bioactive scaffolds further enhance the utility in a broad range of applications including the treatment of major cartilage defects. This chapter provides an overview of cartilage tissue, tissue defects, and the methods used for regeneration, with emphasis on peptide scaffold materials that can be used to supplement or replace current medical treatment options.
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Affiliation(s)
- Nurcan Hastar
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, 06800, Turkey
| | - Elif Arslan
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, 06800, Turkey
| | - Mustafa O Guler
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, 06800, Turkey
- Institute for Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Ayse B Tekinay
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, 06800, Turkey.
- Neuroscience Graduate Program, Bilkent University, Ankara, 06800, Turkey.
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Zhou A, Chen S, He B, Zhao W, Chen X, Jiang D. Controlled release of TGF-beta 1 from RADA self-assembling peptide hydrogel scaffolds. Drug Des Devel Ther 2016; 10:3043-3051. [PMID: 27703332 PMCID: PMC5036568 DOI: 10.2147/dddt.s109545] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Bioactive mediators, cytokines, and chemokines have an important role in regulating and optimizing the synergistic action of materials, cells, and cellular microenvironments for tissue engineering. RADA self-assembling peptide hydrogels have been proved to have an excellent ability to promote cell proliferation, wound healing, tissue repair, and drug delivery. Here, we report that D-RADA16 and L-RADA16-RGD self-assembling peptides can form stable second structure and hydrogel scaffolds, affording the slow release of growth factor (transforming growth factor cytokine-beta 1 [TGF-beta 1]). In vitro tests demonstrated that the plateau release amount can be obtained till 72 hours. Moreover, L-RADA16, D-RADA16, and L-RADA16-RGD self-assembling peptide hydrogels containing TGF-beta 1 were used for 3D cell culture of bone mesenchymal stem cells of rats for 2 weeks. The results revealed that these three RADA16 peptide hydrogels had a significantly favorable influence on proliferation of bone mesenchymal stem cells and hold some promise in slow and sustained release of growth factor.
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Affiliation(s)
- Ao Zhou
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Shuo Chen
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing; Department of Orthopedics, Dujiangyan Medical Center, Dujiangyan, People's Republic of China
| | - Bin He
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Weikang Zhao
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Xiaojun Chen
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Dianming Jiang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing
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Li Z, Ba R, Wang Z, Wei J, Zhao Y, Wu W. Angiogenic Potential of Human Bone Marrow-Derived Mesenchymal Stem Cells in Chondrocyte Brick-Enriched Constructs Promoted Stable Regeneration of Craniofacial Cartilage. Stem Cells Transl Med 2016; 6:601-612. [PMID: 28191761 PMCID: PMC5442805 DOI: 10.5966/sctm.2016-0050] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 07/15/2016] [Indexed: 12/12/2022] Open
Abstract
Craniofacial deformities caused by congenital defects or trauma remain challenges for clinicians, whereas current surgical interventions present limited therapeutic outcomes. Injection of bone marrow‐derived mesenchymal stem cells (BMSCs) into the defect is highly desirable because such a procedure is microinvasive and grafts are more flexible to fill the lesions. However, preventing hypertrophic transition and morphological contraction remain significant challenges. We have developed an “all host derived” cell transplantation system composed of chondrocyte brick (CB)‐enriched platelet‐rich plasma (P) gel and BMSCs (B). Without exogenous biomaterials or growth factors, such grafts regenerate cartilage efficiently and present great clinical promise. In immunodeficient mice, we compared performance of BMSCs and BMSCs lacking angiogenic potential in CB‐B‐P constructs and followed the cartilage maturation process by histology, immunostaining, micro‐computed tomography, and protein analysis. We determined that angiogenesis occurred quickly inside rudimentary cartilage derived from CB‐B‐P constructs after implantation, which improved tissue survival, tissue growth, and production of chondrogenic signals from chondrocytes. In contrast, silencing angiogenic potential of BMSCs led to poor chondrogenesis accompanied by necrosis. Chondrocyte bricks merged rapidly with angiogenesis, which constituted an enclosed chondrogenic niche and effectively inhibited runt‐related transcription factor‐2‐dependent hypertrophic transition of BMSCs as well as endochondral ossification; progressive chondrogenic differentiation of BMSCs resulted in vascularization regression, thus favoring persistent chondrogenesis and effectively augmenting nasal cartilage. In conclusion, these findings provided a novel, efficient approach to regenerating cartilage tissues in vivo. Chondrocyte bricks mixed with P provide transient vascularization and a persistently chondrogenic microenvironment for BMSCs; this provides a mini‐invasive approach for craniofacial cartilage reconstruction. Stem Cells Translational Medicine2017;6:601–612
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Affiliation(s)
- Zhiye Li
- Department of Oral and Maxillofacial Surgery, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, People's Republic of China
- Department of Prosthodontics, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Ruikai Ba
- Department of Prosthodontics, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Zhifa Wang
- Department of Oral and Maxillofacial Surgery, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Jianhua Wei
- Department of Oral and Maxillofacial Surgery, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Yimin Zhao
- Department of Prosthodontics, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Wei Wu
- Department of Oral and Maxillofacial Surgery, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, and Shaanxi Key Laboratory of Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, People's Republic of China
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Liebesny PH, Byun S, Hung HH, Pancoast JR, Mroszczyk KA, Young WT, Lee RT, Frisbie DD, Kisiday JD, Grodzinsky AJ. Growth Factor-Mediated Migration of Bone Marrow Progenitor Cells for Accelerated Scaffold Recruitment. Tissue Eng Part A 2016; 22:917-27. [PMID: 27268956 DOI: 10.1089/ten.tea.2015.0524] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Tissue engineering approaches using growth factor-functionalized acellular scaffolds to support and guide repair driven by endogenous cells are thought to require a careful balance between cell recruitment and growth factor release kinetics. The objective of this study was to identify a growth factor combination that accelerates progenitor cell migration into self-assembling peptide hydrogels in the context of cartilage defect repair. A novel 3D gel-to-gel migration assay enabled quantification of the chemotactic impact of platelet-derived growth factor-BB (PDGF-BB), heparin-binding insulin-like growth factor-1 (HB-IGF-1), and transforming growth factor-β1 (TGF-β1) on progenitor cells derived from subchondral bovine trabecular bone (bone-marrow progenitor cells, BM-PCs) encapsulated in the peptide hydrogel [KLDL]3. Only the combination of PDGF-BB and TGF-β1 stimulated significant migration of BM-PCs over a 4-day period, measured by confocal microscopy. Both PDGF-BB and TGF-β1 were slowly released from the gel, as measured using their (125)I-labeled forms, and they remained significantly present in the gel at 4 days. In the context of augmenting microfracture surgery for cartilage repair, our strategy of delivering chemotactic and proanabolic growth factors in KLD may provide the necessary local stimulus to help increase defect cellularity, providing more cells to generate repair tissue.
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Affiliation(s)
- Paul H Liebesny
- 1 Department of Biological Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Sangwon Byun
- 1 Department of Biological Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Han-Hwa Hung
- 1 Department of Biological Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | | | - Keri A Mroszczyk
- 3 Department of Mechanical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Whitney T Young
- 3 Department of Mechanical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Richard T Lee
- 2 Brigham and Women's Hospital , Boston, Massachusetts
| | - David D Frisbie
- 4 Colorado State University , Orthopaedic Research Center, Fort Collins, Colorado
| | - John D Kisiday
- 4 Colorado State University , Orthopaedic Research Center, Fort Collins, Colorado
| | - Alan J Grodzinsky
- 1 Department of Biological Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts.,3 Department of Mechanical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts.,5 Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology , Cambridge, Massachusetts
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Abstract
Regenerative medicine holds great potential to address many shortcomings in current medical therapies. An emerging avenue of regenerative medicine is the use of self-assembling peptides (SAP) in conjunction with stem cells to improve the repair of damaged tissues. The specific peptide sequence, mechanical properties, and nanotopographical cues vary widely between different SAPs, many of which have been used for the regeneration of similar tissues. To evaluate the potential of SAPs to guide stem cell fate, we extensively reviewed the literature for reports of SAPs and stem cell differentiation. To portray the most accurate summary of these studies, we deliberately discuss both the successes and pitfalls, allowing us to make conclusions that span the breadth of this exciting field. We also expand on these conclusions by relating these findings to the fields of nanotopography, mechanotransduction, and the native composition of the extracellular matrix in specific tissues to identify potential directions for future research.
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Affiliation(s)
- Philip D Tatman
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Medical Scientist Training Program, University of Colorado, Aurora, Colorado, USA
| | - Ethan G Muhonen
- School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Sean T. Wickers
- Department of Chemistry, University of Colorado, Denver, Colorado, USA
| | - Albert O. Gee
- Department of Orthopedics and Sports Medicine, University of Washington, Seattle, WA 98195, USA
| | - Eung-Sam Kim
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Department of Biological Sciences, Chonnam National University, Gwangju, Korea
| | - Deok-Ho Kim
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
- Institute of Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
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21
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Abstract
Hydrogels are useful delivery vehicles for therapeutic proteins. The ability to control the rate of protein release is paramount to a gel's utility and, in part, defines its clinical application. Electrostatic interactions made between encapsulated protein and a gel's network represents one modality in which protein motility can be controlled. For many gels this strategy works well under low ionic strength solution conditions, but dramatically less so in solutions of physiologically relevant ionic strength where electrostatic interactions are more effectively screened. Herein, we find that highly charged self-assembling peptides can be used to prepare fibrillar hydrogels of sufficient electropotential to allow electrostatic-based control over protein release under physiological buffer conditions. Rheology shows that proteins, differing significantly in their isoelectric point, can be directly encapsulated within negatively- or positively-charged peptide hydrogel networks during the peptide self-assembly event leading to gelation. Bulk adsorption studies coupled with transmission electron microscopy shows that electrostatic interactions drive the association of protein to oppositely charged fibrils in the final gel state, which in turn, dictates the diffusion and retention of these macromolecules in the hydrogel network.
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Affiliation(s)
- Katelyn Nagy-Smith
- Chemical Biology Laboratory, National Cancer Institute, Frederick, MD 21702, USA.
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Yuan T, He L, Yang J, Zhang L, Xiao Y, Fan Y, Zhang X. Conjugated icariin promotes tissue-engineered cartilage formation in hyaluronic acid/collagen hydrogel. Process Biochem 2015; 50:2242-50. [DOI: 10.1016/j.procbio.2015.09.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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23
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Abstract
Articular cartilage defects often progress to osteoarthritis, which negatively impacts quality of life for millions of people worldwide and leads to high healthcare expenditures. Tissue engineering approaches to osteoarthritis have concentrated on proliferation and differentiation of stem cells by activation and suppression of signaling pathways, and by using a variety of scaffolding techniques. Recent studies indicate a key role of environmental factors in the differentiation of mesenchymal stem cells to mature cartilage-producing chondrocytes. Therapeutic approaches that consider environmental regulation could optimize chondrogenesis protocols for regeneration of articular cartilage. This review focuses on the effect of scaffold structure and composition, mechanical stress and hypoxia in modulating mesenchymal stem cell fate and the current use of these environmental factors in tissue engineering research.
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Affiliation(s)
- Carrie Gaut
- INDICASAT-AIP, Ciudad de Saber, Clayton, Apartado 0843-01103, Panama, Rep. de Panama
- Department of Biotechnology, Acharya Nagarjuna University, Guntur, Andhra Pradesh 522510, India
| | - Kiminobu Sugaya
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, FL 32827, USA
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Abstract
A hallmark of chronic metabolic diseases, such as diabetes and metabolic syndrome, and oxidative stress, as occurs in chronic inflammatory and degenerative conditions, is the presence of extensive protein post-translational modifications, including glycation, glycoxidation, carbonylation and nitrosylation. These modifications have been detected on structural cartilage proteins in joints and intervertebral discs, where they are known to affect protein folding, induce protein aggregation and, ultimately, generate microanatomical changes in the proteoglycan-collagen network that surrounds chondrocytes. Many of these modifications have also been shown to promote oxidative cleavage as well as enzymatically-mediated matrix degradation. Overall, a general picture starts to emerge indicating that biochemical changes in proteins constitute an early event that compromises the anatomical organization and viscoelasticity of cartilage, thereby affecting its ability to sustain pressure and, ultimately, impeding its overall bio-performance.
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Affiliation(s)
- John A Hardin
- Department of Orthopedic Surgery, Montefiore Medical Centre, 1250 Waters Place, New York, NY 10467, USA
| | - Neil Cobelli
- Department of Orthopedic Surgery, Montefiore Medical Centre, 1250 Waters Place, New York, NY 10467, USA
| | - Laura Santambrogio
- Departments of Pathology, Microbiology and Immunology and Orthopedic Surgery, Albert Einstein College of Medicine, 1300 Morris Park Avenue, New York, NY 10461, USA
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Krüger JP, Machens I, Lahner M, Endres M, Kaps C. Initial boost release of transforming growth factor-β3 and chondrogenesis by freeze-dried bioactive polymer scaffolds. Ann Biomed Eng 2014; 42:2562-76. [PMID: 25169425 DOI: 10.1007/s10439-014-1099-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 08/23/2014] [Indexed: 01/06/2023]
Abstract
In cartilage regeneration, bio-activated implants are used in stem and progenitor cell-based microfracture cartilage repair procedures. Our aim was to analyze the chondrogenic potential of freeze-dried resorbable polymer-based polyglycolic acid (PGA) scaffolds bio-activated with transforming growth factor-β3 (TGFB3) on human subchondral mesenchymal progenitor cells known from microfracture. Progenitor cells derived from femur heads were cultured in the presence of freeze-dried TGFB3 in high-density pellet culture and in freeze-dried TGFB3-PGA scaffolds for chondrogenic differentiation. Progenitor cell cultures in PGA scaffolds as well as pellet cultures with and without continuous application of TGFB3 served as controls. Release studies showed that freeze-dried TGFB3-PGA scaffolds facilitate a rapid, initial boost-like release of 71.5% of TGFB3 in the first 10 h. Gene expression analysis and histology showed induction of typical chondrogenic markers like type II collagen and formation of cartilaginous tissue in TGFB3-PGA scaffolds seeded with subchondral progenitor cells and in pellet cultures stimulated with freeze-dried TGFB3. Chondrogenic differentiation in freeze-dried TGFB3-PGA scaffolds was comparable to cultures receiving TGFB3 continuously, while non-stimulated controls did not show chondrogenesis during prolonged culture for 14 days. These results suggest that bio-activated, freeze-dried TGFB3-PGA scaffolds have chondrogenic potential and are a promising tool for stem cell-mediated cartilage regeneration.
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Wang B, Sun C, Shao Z, Yang S, Che B, Wu Q, Liu J. Designer self-assembling peptide nanofiber scaffolds containing link protein N-terminal peptide induce chondrogenesis of rabbit bone marrow stem cells. Biomed Res Int 2014; 2014:421954. [PMID: 25243141 DOI: 10.1155/2014/421954] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 07/30/2014] [Accepted: 07/30/2014] [Indexed: 01/06/2023]
Abstract
Designer self-assembling peptide nanofiber hydrogel scaffolds have been considered as promising biomaterials for tissue engineering because of their excellent biocompatibility and biofunctionality. Our previous studies have shown that a novel designer functionalized self-assembling peptide nanofiber hydrogel scaffold (RLN/RADA16, LN-NS) containing N-terminal peptide sequence of link protein (link N) can promote nucleus pulposus cells (NPCs) adhesion and three-dimensional (3D) migration and stimulate biosynthesis of type II collagen and aggrecan by NPCs in vitro. The present study has extended these investigations to determine the effects of this functionalized LN-NS on bone marrow stem cells (BMSCs), a potential cell source for NP regeneration. Although the functionalized LN-NS cannot promote BMSCs proliferation, it significantly promotes BMSCs adhesion compared with that of the pure RADA16 hydrogel scaffold. Moreover, the functionalized LN-NS remarkably stimulates biosynthesis and deposition of type II collagen and aggrecan. These data demonstrate that the functionalized peptide nanofiber hydrogel scaffold containing link N peptide as a potential matrix substrate will be very useful in the NP tissue regeneration.
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He B, Yuan X, Zhou A, Zhang H, Jiang D. Designer functionalised self-assembling peptide nanofibre scaffolds for cartilage tissue engineering. Expert Rev Mol Med 2014; 16:e12. [PMID: 25089851 DOI: 10.1017/erm.2014.13] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Owing to the limited regenerative capacity of cartilage tissue, cartilage repair remains a challenge in clinical treatment. Tissue engineering has emerged as a promising and important approach to repair cartilage defects. It is well known that material scaffolds are regarded as a fundamental element of tissue engineering. Novel biomaterial scaffolds formed by self-assembling peptides consist of nanofibre networks highly resembling natural extracellular matrices, and their fabrication is based on the principle of molecular self-assembly. Indeed, peptide nanofibre scaffolds have obtained much progress in repairing various damaged tissues (e.g. cartilage, bone, nerve, heart and blood vessel). This review outlines the rational design of peptide nanofibre scaffolds and their potential in cartilage tissue engineering.
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