1
|
Courtney J, Irvine L, Jones C, Mosa S, Robertson L, Srivastava S. Biomaterials in Medicine - A Bioengineering Perspective. Int J Artif Organs 2018. [DOI: 10.1177/039139889301600311] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Biomaterials are considered with an emphasis on those used in artificial organs. Attention is drawn to the importance of the polymeric biomaterials and factors which affect their properties. Functions of membranes, sorbents, blood tubing, ventricular diaphragms and cell culture substrates are examined in order to obtain a summary of fundamental properties. Observations are made on the importance of blood compatibility assessment and its association with a biomaterial structure-property relationship. Blood-biomaterial interactions are discussed in terms of an overall relationship between the three components –- blood, biomaterial and antithrombotic agent, with examples given of factors influencing each component. Cell-biomaterial interactions are examined in the areas of toxicity evaluation and the promotion of cell attachment and growth, where an overall relationship is described for the cell, growth medium and growth factors, and the biomaterial acting as a substrate.
Collapse
Affiliation(s)
- J.M. Courtney
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| | - L. Irvine
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| | - C. Jones
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| | - S.M. Mosa
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| | - L.M. Robertson
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| | - S. Srivastava
- Bioengineering Unit, University of Strathclyde, Glasgow - UK
| |
Collapse
|
2
|
Terzi A, Storelli E, Bettini S, Sibillano T, Altamura D, Salvatore L, Madaghiele M, Romano A, Siliqi D, Ladisa M, De Caro L, Quattrini A, Valli L, Sannino A, Giannini C. Effects of processing on structural, mechanical and biological properties of collagen-based substrates for regenerative medicine. Sci Rep 2018; 8:1429. [PMID: 29362434 PMCID: PMC5780384 DOI: 10.1038/s41598-018-19786-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 12/11/2017] [Indexed: 12/21/2022] Open
Abstract
The aim of this work was to investigate the structural features of type I collagen isoforms and collagen-based films at atomic and molecular scales, in order to evaluate whether and to what extent different protocols of slurry synthesis may change the protein structure and the final properties of the developed scaffolds. Wide Angle X-ray Scattering data on raw materials demonstrated the preferential orientation of collagen molecules in equine tendon-derived collagens, while randomly oriented molecules were found in bovine skin collagens, together with a lower crystalline degree, analyzed by the assessment of FWHM (Full Width at Half Maximum), and a certain degree of salt contamination. WAXS and FT-IR (Fourier Transform Infrared) analyses on bovine collagen-based films, showed that mechanical homogenization of slurry in acidic solution was the treatment ensuring a high content of super-organization of collagen into triple helices and a high crystalline domain into the material. In vitro tests on rat Schwannoma cells showed that Schwann cell differentiation into myelinating cells was dependent on the specific collagen film being used, and was found to be stimulated in case of homogenization-treated samples. Finally DHT/EDC crosslinking treatment was shown to affect mechanical stiffness of films depending on collagen source and processing conditions.
Collapse
Affiliation(s)
- A Terzi
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - E Storelli
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
- Neuropathology Unit, Institute of Experimental Neurology and Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - S Bettini
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - T Sibillano
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - D Altamura
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - L Salvatore
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - M Madaghiele
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - A Romano
- Neuropathology Unit, Institute of Experimental Neurology and Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - D Siliqi
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - M Ladisa
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - L De Caro
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - A Quattrini
- Neuropathology Unit, Institute of Experimental Neurology and Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - L Valli
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
| | - A Sannino
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - C Giannini
- Institute of Crystallography (IC), National Research Council, Bari, Italy.
| |
Collapse
|
3
|
Hasan A, Khattab A, Islam MA, Hweij KA, Zeitouny J, Waters R, Sayegh M, Hossain MM, Paul A. Injectable Hydrogels for Cardiac Tissue Repair after Myocardial Infarction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2015; 2:1500122. [PMID: 27668147 PMCID: PMC5033116 DOI: 10.1002/advs.201500122] [Citation(s) in RCA: 181] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 06/09/2015] [Indexed: 05/17/2023]
Abstract
Cardiac tissue damage due to myocardial infarction (MI) is one of the leading causes of mortality worldwide. The available treatments of MI include pharmaceutical therapy, medical device implants, and organ transplants, all of which have severe limitations including high invasiveness, scarcity of donor organs, thrombosis or stenosis of devices, immune rejection, and prolonged hospitalization time. Injectable hydrogels have emerged as a promising solution for in situ cardiac tissue repair in infarcted hearts after MI. In this review, an overview of various natural and synthetic hydrogels for potential application as injectable hydrogels in cardiac tissue repair and regeneration is presented. The review starts with brief discussions about the pathology of MI, its current clinical treatments and their limitations, and the emergence of injectable hydrogels as a potential solution for post MI cardiac regeneration. It then summarizes various hydrogels, their compositions, structures and properties for potential application in post MI cardiac repair, and recent advancements in the application of injectable hydrogels in treatment of MI. Finally, the current challenges associated with the clinical application of injectable hydrogels to MI and their potential solutions are discussed to help guide the future research on injectable hydrogels for translational therapeutic applications in regeneration of cardiac tissue after MI.
Collapse
Affiliation(s)
- Anwarul Hasan
- Center for Biomedical Engineering Department of Medicine Brigham and Women's Hospital Harvard Medical School Cambridge MA 02139 USA; Harvard-MIT Division of Health Sciences and Technology Massachusetts Institute of Technology Cambridge MA 02139 USA; Biomedical Engineering and Department of Mechanical Engineering Faculty of Engineering and Architecture American University of Beirut Beirut 1107 2020 Lebanon
| | - Ahmad Khattab
- Department of Electrical and Computer Engineering Faculty of Engineering and Architecture American University of Beirut Beirut 1107 2020 Lebanon
| | - Mohammad Ariful Islam
- Laboratory of Nanomedicine and Biomaterials Department of Anesthesiology Brigham and Women's Hospital Harvard Medical School Boston MA 02115 USA; Laboratory for Nanoengineering and Drug Delivery Brigham and Women's Hospital Harvard Medical School Boston MA 02115 USA
| | - Khaled Abou Hweij
- Department of Mechanical Engineering Faculty of Engineering and Architecture American University of Beirut Beirut 1107 2020 Lebanon
| | - Joya Zeitouny
- Department of Electrical and Computer Engineering Faculty of Engineering and Architecture American University of Beirut Beirut 1107 2020 Lebanon
| | - Renae Waters
- BioIntel Research Laboratory Department of Chemical and Petroleum Engineering Bioengineering Graduate Program School of Engineering University of Kansas Lawrence KS 66045 USA
| | | | - Md Monowar Hossain
- Department of Medicine Lyell McEwin Hospital University of Adelaide South Australia 5112 Australia
| | - Arghya Paul
- BioIntel Research Laboratory Department of Chemical and Petroleum Engineering Bioengineering Graduate Program School of Engineering University of Kansas Lawrence KS 66045 USA
| |
Collapse
|
4
|
Ko JH, Kim YH, Jeong SH, Lee S, Park SN, Shim IK, Kim SC. Collagen esterification enhances the function and survival of pancreatic β cells in 2D and 3D culture systems. Biochem Biophys Res Commun 2015; 463:1084-90. [DOI: 10.1016/j.bbrc.2015.06.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 06/09/2015] [Indexed: 11/29/2022]
|
5
|
Potency of fish collagen as a scaffold for regenerative medicine. BIOMED RESEARCH INTERNATIONAL 2014; 2014:302932. [PMID: 24982861 PMCID: PMC4055654 DOI: 10.1155/2014/302932] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 05/14/2014] [Indexed: 11/18/2022]
Abstract
Cells, growth factors, and scaffold are the crucial factors for tissue engineering. Recently, scaffolds consisting of natural polymers, such as collagen and gelatin, bioabsorbable synthetic polymers, such as polylactic acid and polyglycolic acid, and inorganic materials, such as hydroxyapatite, as well as composite materials have been rapidly developed. In particular, collagen is the most promising material for tissue engineering due to its biocompatibility and biodegradability. Collagen contains specific cell adhesion domains, including the arginine-glycine-aspartic acid (RGD) motif. After the integrin receptor on the cell surface binds to the RGD motif on the collagen molecule, cell adhesion is actively induced. This interaction contributes to the promotion of cell growth and differentiation and the regulation of various cell functions. However, it is difficult to use a pure collagen scaffold as a tissue engineering material due to its low mechanical strength. In order to make up for this disadvantage, collagen scaffolds are often modified using a cross-linker, such as gamma irradiation and carbodiimide. Taking into account the possibility of zoonosis, a variety of recent reports have been documented using fish collagen scaffolds. We herein review the potency of fish collagen scaffolds as well as associated problems to be addressed for use in regenerative medicine.
Collapse
|
6
|
Way L, Scutt N, Scutt A. Cytocentrifugation: a convenient and efficient method for seeding tendon-derived cells into monolayer cultures or 3-D tissue engineering scaffolds. Cytotechnology 2011; 63:567-79. [PMID: 21948096 DOI: 10.1007/s10616-011-9391-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Accepted: 08/12/2011] [Indexed: 02/06/2023] Open
Abstract
Tendon and ligament injuries are very common, requiring some 200,000 reconstructions per year in the USA. Autografting can be used to repair these but donor tissue is limited and harvesting leads to morbidity at the graft sites. Tissue engineering has been used to grow simple tissues such as skin, cartilage and bone and due to their low vascularity and simple structure, tendons should be ideal candidates for such an approach. Scaffolds are essential for tissue engineering as they provide structure and signals that regulate growth. However, they present a physical barrier to cell seeding with the majority of the cells congregating at the scaffold surface. To address this we used centrifugation to enhance penetration of tendon-derived cells to the centres of 3-D scaffolds. The process had no apparent deleterious effects on the cells and both plating efficiency and cell distribution improved. After attachment the cells continued to proliferate and deposit a collagenous matrix. Scaffold penetration was investigated using layers of Azowipes allowing the separation and examination of individual leaves. At relatively low g-forces, cells penetrated a stack of 6 Azowipes leaving cells attached to each leaf. These data suggest that cytocentrifugation improves the penetration and homogeneity of tendon derived cells in 3-D and monolayer cultures.
Collapse
Affiliation(s)
- Louise Way
- Bone Biology Group, Department of Human Metabolism, Faculty of Medicine, Dentistry and Health, University of Sheffield, Beech Hill Road, Sheffield, S10 2RX, UK
| | | | | |
Collapse
|
7
|
Tan GK, Cooper-White JJ. Interactions of meniscal cells with extracellular matrix molecules: towards the generation of tissue engineered menisci. Cell Adh Migr 2011; 5:220-6. [PMID: 21187716 DOI: 10.4161/cam.5.3.14463] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Menisci are one of the most commonly injured parts of the knee. Conventional surgical interventions are often associated with a long-term increased risk of osteoarthritis. Meniscal tissue engineering utilizes natural or synthetic matrices as a scaffold to guide tissue repair or regeneration in three dimensions. Studies have shown that a diverse cellular response can be triggered depending on the composition of the surrounding extracellular matrix (ECM) components. As such, attempts have been made to replace or repair meniscus defects using tissue grafts or reconstituted ECM components prepared from a multitude of tissues. This commentary summarizes the most recent data on the response of meniscal cells to ECM components, both in vivo and in vitro, and focuses on their potential roles in meniscal repair and regeneration. We also discuss our recent investigations into the interactions of meniscal cells and a self assembled biomimetic surface composed of meniscal ECM molecules. The biological effects conferred by the biomimetic surface, in terms of cell adhesion, proliferation, gene expression profiles and matrix synthesis, were evaluated. Finally, some suggested directions for future research in this field are outlined.
Collapse
Affiliation(s)
- Guak-Kim Tan
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St. Lucia, Queensland, Australia
| | | |
Collapse
|
8
|
Mizuno S, Lycette C, Quinto C, Glowacki J. A Collagen/DBP Sponge System Designed for in Vitro Analysis of Chondroinduction. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-252-133] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTIn response to subcutaneous implants of demineralized bone powder (DBP), cells are attracted to the DBP, are converted to
chondroblasts, and produce a cartilage matrix that is resorbed and replaced by bone. In order to define the cellular mechanisms of this induction, we developed a collagen sponge model for simulating the in vivo environment and for promoting the ingrowth and viability of cells cultured in them in vitro. Reconstituted pepsin–digested type I collagen from bovine hide was neutralized. Rat DBP (75–250 εm) was added into the collagen mixture (20 mg/ml). In order to simulate the connective tissue environment, modified chondroitin sulfate, heparan sulfate, or hyaluronic acid was added into the mixture. Aliquots (0.2 ml) were placed in 3/8 inch diameter molds and freeze-dried. Human dermal fibroblasts were cultured from minced fresh tissue and inoculated at 1.5 × 105 cells/sponge. Fifteen hours later, some sponges were transferred to medium which contained growth factors (PDGF or TGF-β). At intervals, samples were examined histologically. The inoculated cells attached to the collagen fibers and migrated into the sponge. Eventually the sponges contracted and acquired an oval shape. Cells on or near DBP were ovoid or stellate in shape. Cell morphology was modulated by glycosaminoglycan composition of the sponge. Increasing doses of PDGF or TGF-β promoted cellularity within the sponges. In conclusion, this system simulates the in vivo environment but allows accessibility for analysis. This three-dimensional matrix culture system will enable investigation of mechanisms of chondroinduction by morphogenic material.
Collapse
|
9
|
Tan GK, Dinnes DL, Butler LN, Cooper-White JJ. Interactions between meniscal cells and a self assembled biomimetic surface composed of hyaluronic acid, chitosan and meniscal extracellular matrix molecules. Biomaterials 2010; 31:6104-18. [DOI: 10.1016/j.biomaterials.2010.04.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Accepted: 04/11/2010] [Indexed: 10/19/2022]
|
10
|
Angele P, Müller R, Schumann D, Englert C, Zellner J, Johnstone B, Yoo J, Hammer J, Fierlbeck J, Angele MK, Nerlich M, Kujat R. Characterization of esterified hyaluronan-gelatin polymer composites suitable for chondrogenic differentiation of mesenchymal stem cells. J Biomed Mater Res A 2009; 91:416-27. [PMID: 18985778 PMCID: PMC2749916 DOI: 10.1002/jbm.a.32236] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Composite scaffolds of homogeneously mixed esterified hyaluronan (HY) and gelatin (G) were manufactured with variable component compositions (HY100%; HY95%/G5%; HY70%/G30%). The goals of this study were to analyze the produced composite scaffolds using physical and chemical methods, for example, scanning electron microscopy, IR-spectroscopy, water contact angle, protein assay, and tensile testing as well as to assess the effects of adding gelatin to the composite scaffolds on attachment, proliferation, and chondrogenic differentiation of human mesenchymal stem cells. Numbers of attached cells were significantly higher on the composite material compared to pure hyaluronan at different time points of two-dimensional or three-dimensional cell culture (p< 0.02). In composite scaffolds, a significantly greater amount of cartilage-specific extracellular matrix components was deposited after 28 days in culture (glycosaminoglycan: p < 0.001; collagen: p < 0.001) as compared with 100% hyaluronan scaffolds. Additionally, gelatin-containing composite scaffolds displayed stronger promotion of collagen type II expression than pure hyaluronan scaffolds. The mechanism, based on which gelatin influences cell adhesion, was examined. The effect was inhibited by collagenase treatment of the composites or by addition of alpha5beta1-integrin blocking antibodies to the cell suspension. In summary, the results describe the establishment of a class of composite polymer scaffolds, consisting of esterified hyaluronan and gelatin, which are potentially useful for cell-based tissue engineering approaches using mesenchymal stem cells for chondrogenic differentiation.
Collapse
Affiliation(s)
- Peter Angele
- Department of Trauma Surgery, University Hospital of Regensburg, Regensburg, Germany.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Angele P, Abke J, Kujat R, Faltermeier H, Schumann D, Nerlich M, Kinner B, Englert C, Ruszczak Z, Mehrl R, Mueller R. Influence of different collagen species on physico-chemical properties of crosslinked collagen matrices. Biomaterials 2004; 25:2831-41. [PMID: 14962561 DOI: 10.1016/j.biomaterials.2003.09.066] [Citation(s) in RCA: 199] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2003] [Accepted: 09/17/2003] [Indexed: 10/26/2022]
Abstract
Collagen-based scaffolds are appealing products for the repair of cartilage defects using tissue engineering strategies. The present study investigated the species-related differences of collagen scaffolds with and without 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide (EDC)/N-hydroxysuccinimide (NHS)-crosslinking. Resistance against collagenase digestion, swelling ratio, amino acid sequence, shrinkage temperature, ultrastructural matrix morphology, crosslinking density and stress-strain characteristics were determined to evaluate the physico-chemical properties of equine- and bovine-collagen-based scaffolds. Three-factor ANOVA analysis revealed a highly significant effect of collagen type (p=0.0001), crosslinking (p=0.0001) and time (p=0.0001) on degradation of the collagen samples by collagenase treatment. Crosslinked equine collagen samples showed a significantly reduced swelling ratio compared to bovine collagen samples (p< 0.0001). The amino acid composition of equine collagen revealed a higher amount of hydroxylysine and lysine. Shrinkage temperatures of non-crosslinked samples showed a significant difference between equine (60 degrees C) and bovine collagen (57 degrees C). Three-factor ANOVA analysis revealed a highly significant effect of collagen type (p=0.0001), crosslinking (p=0.0001) and matrix condition (p=0.0001) on rupture strength measured by stress-strain analysis. The ultrastructure, the crosslinking density and the strain at rupture between collagen matrices of both species showed no significant differences. For tissue engineering purposes, the higher enzymatic stability, the higher form stability, as well as the lower risk of transmissible disease make the case for considering equine-based collagen. This study also indicates that results obtained for scaffolds based on a certain collagen species may not be transferable to scaffolds based on another, because of the differing physico-chemical properties.
Collapse
Affiliation(s)
- Peter Angele
- Department of Trauma Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, Regensburg 93051, Germany.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Dufrane D, Cornu O, Delloye C, Schneider YJ. Physical and chemical processing for a human dura mater substitute. Biomaterials 2002; 23:2979-88. [PMID: 12069340 DOI: 10.1016/s0142-9612(02)00027-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECT Allogenic human fascia lata used in neurosurgery, as dura mater substitute, can be associated with a risk of viral and bacterial transmission. Chemical and physical procedures, developed to inactivate virus and bacteria, have been applied to fascia lata. The aim of this study consists in the evaluation of the biological properties of this treated graft. METHODS Grafts were treated with solvent detergents, freeze-dried for conservation and gamma irradiated (25,000 Gy) for sterilization. The indirect toxicity evaluation was performed by extraction method, according to the International Standard Organization (ISO). First, the cytotoxic effect of each extracts incubated in the presence of human fibroblasts (WI38) was quantitatively assessed by measuring the cell growth, the viability (succinate dehydrogenase activity, MTT), the membrane integrity (uptake of the neutral red by viable cells, NR) as well as the release of lactate dehydrogenase in the culture medium. Second, confocal laser scanning microscopy (CLSM) was used to assess the direct contact between human primary fibroblasts and graft. CLSM was performed at days 3 and 7 after cells loading. RESULTS No acute cytotoxicity was observed for chemically processed allografts. Cells loaded on the graft have demonstrated a good growth and spreading. CONCLUSIONS Human fascia lata secured against conventional and non-conventional agents is a fully biocompatible alternative to the available dural graft materials.
Collapse
Affiliation(s)
- D Dufrane
- University Tissue Bank, Université catholique de Louvain, Orthopaedic Research Laboratory, Brussels, Belgium.
| | | | | | | |
Collapse
|
13
|
Affiliation(s)
- K Y Lee
- Departments of Biologic & Materials Sciences, Chemical Engineering, and Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
| | | |
Collapse
|
14
|
Allemann F, Mizuno S, Eid K, Yates KE, Zaleske D, Glowacki J. Effects of hyaluronan on engineered articular cartilage extracellular matrix gene expression in 3-dimensional collagen scaffolds. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH 2001; 55:13-9. [PMID: 11426390 DOI: 10.1002/1097-4636(200104)55:1<13::aid-jbm20>3.0.co;2-g] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Hyaluronan (HA) is a component of cartilage matrix with known effects on chondrocytes. We tested the effects of adding HA to 3-dimensional (3-D) collagen. sponges on chondrocyte function in vitro. Bovine articular chondrocytes isolated by collagenase digestion were injected into either collagen or HA/collagen scaffolds comprising different amounts of HA (2, 5, 10, and 14% w/w). Expression of aggrecan and type II collagen genes was measured by gene-specific quantitative competitive reverse transcriptase-polymerase chain reactions, and the extracellular matrix was estimated by histomorphometrical analyses. After 7-day culture, the chondrocytes in 2% (w/w) HA sponges expressed fourfold more mRNA transcripts for type II collagen (p = 0.002) and twofold more mRNA transcripts for aggrecan (p = 0.022) than in control collagen sponges. Furthermore, there was 45% more extracellular matrix in 2% (w/w) HA sponges and 43% less matrix in the 10% (w/w) HA sponges compared with plain collagen sponges (p > 0.05). In sum, a small amount of HA in 3-D collagen scaffolds enhanced chondrogenesis, but a greater amount was inhibitory. This 3-D system represents a novel tool to identify mechanisms by which extracellular matrix molecules influence chondrocyte function. Further, these results show the potential for modifying scaffolds to improve production of engineered cartilage for in vivo applications.
Collapse
Affiliation(s)
- F Allemann
- Department of Orthopedic Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA
| | | | | | | | | | | |
Collapse
|
15
|
Radhika M, Babu M, Sehgal PK. Cellular proliferation on desamidated collagen matrices. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART C, PHARMACOLOGY, TOXICOLOGY & ENDOCRINOLOGY 1999; 124:131-9. [PMID: 10622428 DOI: 10.1016/s0742-8413(99)00042-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The attachment and growth of human skin keratinocytes (KR) and fibroblasts (FB) on collagen modified by desamidation were investigated. Unlike type I native collagen, desamidated collagen has a sharp iso-ionic pH (5.1) thereby making available either negative or positively charged biomolecules as and when required for a specific bio-application. The cytocompatibility of desamidated collagen prepared from bovine achilles tendons (DCA) and hide trimmings (DCH) was compared with the bovine type I collagen (NC). KR or FB were seeded onto the wells of tissue culture plates coated with the collagen preparations (DCA, DCH and NC). Cellular proliferation on each of these substrates was monitored by reduction of MITT ([3-(4,5-dimethyl-2-thiazolyl)-2,5-dimethyltetrazolium bromide] and by determining the DNA synthesis with [3H]thymidine. In both cases cells proliferated well indicating that DCA and DCH serve as good substrata and are biocompatible. Cell growth occurred without any morphological changes in cell appearance as observed from the phase-contrast microscopy of the cultures, indicating no toxicity of the material during the period studied.
Collapse
Affiliation(s)
- M Radhika
- Central Leather Research Institute, Adyar, Chennai, India
| | | | | |
Collapse
|
16
|
Abstract
The use of collagen as a biomaterial is currently undergoing a renaissance in the tissue engineering field. The biotechnological applications focus on the aspects of cellular growth or delivery of proteins capable of stimulating cellular response. However, basic knowledge about collagen biochemistry and the processing technology in combination with understanding of the physico-chemical properties is necessary for an adequate application of collagen for carrier systems. The purpose of this review article is to summarize information available on collagen dosage forms for drug delivery as well as to impart an overview of the chemical structures and the galenical properties including detailed description of the processing steps - extraction, purification, chemical crosslinking and sterilization. The most successful and stimulating applications are shields in ophthalmology, injectable dispersions for local tumor treatment, sponges carrying antibiotics and minipellets loaded with protein drugs. However, the scientific information about manipulating release properties or mechanistic studies is not as abundant as for some synthetic polymers.
Collapse
Affiliation(s)
- W Friess
- University of Erlangen, Germany.
| |
Collapse
|
17
|
Rooney P, Kumar S. Inverse relationship between hyaluronan and collagens in development and angiogenesis. Differentiation 1993. [DOI: 10.1111/j.1432-0436.1993.tb01582.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
18
|
Abstract
The extracellular matrix plays a vital role in regulating normal tissue development and function--largely via the specific arrangement of macromolecules such as collagens, proteoglycans, glycosaminoglycans and glycoproteins. Previous reports have concentrated on associations between combinations of collagens/proteoglycans, collagens/glycoproteins and proteoglycans/glycosaminoglycans whilst little information is available on associations between collagens and free glycosaminoglycans. In this review, we discuss possible associations between collagens and the glycosaminoglycan hyaluronan; macromolecules which are known to exhibit changes in amount and composition during development and under pathological conditions. We demonstrate two types of collagen/hyaluronan association in vivo: the first, during the formation of extracellular matrix structures where neither collagens nor hyaluronan are degraded, resulting in the regulation of collagen fibrillogenesis, and the second, involving an inverse correlation between collagen synthesis and hyaluronan degradation and vice versa. We suggest that associations between collagens and hyaluronan play an important role in the initiation and maintenance of angiogenesis and put forward a model of cartilage vascularisation which relies on these associations.
Collapse
Affiliation(s)
- P Rooney
- Department of Pathological Sciences, University of Manchester, UK
| | | |
Collapse
|
19
|
Srivastava S, Grant H, Courtney J, Barbenel J. The In-Vitro Cellular Response of Mouse and Human Fibroblasts to Collagen-Based Wound Dressings. J Tissue Viability 1993. [DOI: 10.1016/s0965-206x(14)80080-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
20
|
Bibliography. J Med Eng Technol 1993. [DOI: 10.3109/03091909309008379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
21
|
Koide M, Osaki K, Konishi J, Oyamada K, Katakura T, Takahashi A, Yoshizato K. A new type of biomaterial for artificial skin: dehydrothermally cross-linked composites of fibrillar and denatured collagens. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH 1993; 27:79-87. [PMID: 8421002 DOI: 10.1002/jbm.820270111] [Citation(s) in RCA: 168] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A new type of biomaterial for artificial skin was developed as a form of sponge by combining fibrillar collagen (F-collagen) with gelatin. The sponge was physically and metabolically stabilized by introducing dehydrothermal cross links. To get the final product, various conditions in the preparation of sponges were evaluated by in vitro cellular responses and in vivo tissue reactions. Fibroblasts placed on a sponge of gelatin attached themselves to it, migrated well into the sponge, and remained inside it for at least 7 days. However, sponges of gelatin showed structural instability for hydrolytic degradation by the cells. Most fibroblasts appeared not to penetrate into the interior of a sponge of F-collagen but to remain on its surface when fibroblasts were placed on the sponge, suggesting poor attraction of F-collagen toward cells. Implantation experiments of sponges of F-collagen revealed an intense infiltration of neutrophils into the sponge, indicating F-collagen as an inducer of the inflammatory reaction. These aggravating characters of F-collagen sponges were greatly improved by blending gelatin with F-collagen. The new type of collagen-based biomaterials developed in the present study is expected to become a useful matrix substance for artificial skin.
Collapse
Affiliation(s)
- M Koide
- R & D Center, Terumo Co., Kanagawa, Japan
| | | | | | | | | | | | | |
Collapse
|
22
|
Smith MD, Shearer MG, Srivastava S, Scott R, Courtney JM. Quantitative evaluation of the growth of established cell lines on the surface of collagen, collagen composite and reconstituted basement membrane. UROLOGICAL RESEARCH 1992; 20:285-8. [PMID: 1509635 DOI: 10.1007/bf00300260] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
As a step in the development of a system for assessing growth of human urothelium and transitional cell carcinoma, the growth of two established cell lines on collagen-based membranes has been evaluated. HT1080 (metastatic human fibrosarcoma) and WI38 VA13 (virus-transformed human fibroblasts) were grown on substrates of collagen, collagen/hyaluronic acid or chondroitin sulphate and reconstituted basement membrane (Matrigel). Cell growth was quantified using a new fluorimetric assay utilizing carboxyfluorescein diacetate. There were differences in morphology between cells grown on collagen and those grown on polystyrene. There were, however, no differences in growth of the WI38 VA13 cells on collagen compared with polystyrene, but growth of the HT1080 cells was increased on membranes of collagen/2.5% hyaluronic acid and collagen/5% chondroitin sulphate, and decreased on Matrigel. Adequate growth on collagen substrates is dependent on cell line. The fluorimetric assay used was suitable for quantifying cell growth on such substrates.
Collapse
Affiliation(s)
- M D Smith
- Bioengineering Unit, Wolfson Centre, University of Strathclyde, UK
| | | | | | | | | |
Collapse
|
23
|
|
24
|
Srivastava S, Gorham SD, French DA, Shivas AA, Courtney JM. In vivo evaluation and comparison of collagen, acetylated collagen and collagen/glycosaminoglycan composite films and sponges as candidate biomaterials. Biomaterials 1990; 11:155-61. [PMID: 2161687 DOI: 10.1016/0142-9612(90)90148-j] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Native collagen, acetylated collagen, collagen/10% chondroitin sulphate, collagen/2.5% hyaluronic acid and collagen/20% hyaluronic acid were implanted both as film and as sponge into rat lumbar muscle for 7 and 14 d. After 7 d implantation, all materials elicited an acute inflammatory cell response characterized by numerous polymorphs and histocytes. The cell population after 14 d was principally mononuclear, i.e. leucocytes, neutrophils, macrophages, lymphocytes and fibroblasts. Both films and sponges followed a similar pattern. Native collagen elicited a subacute inflammatory response after 7 d. However, 14 d after implantation, a marked infiltration by neutrophils was apparent with subsequent degradation of existing collagen material. Acetylated collagen film evoked a much greater inflammatory cell response than native collagen. Both collagen/hyaluronic acid composites elicited a similar response. The collagen/10% chondroitin sulphate composite elicited the least inflammatory cell response at 7 d, whereas infiltration by host fibroblasts after 14 d implantation was clearly seen.
Collapse
|