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Vallet Y, Baldit A, Bertholdt C, Rahouadj R, Morel O, Laurent C. Characterization of the skin-to-bone mechanical interaction on porcine scalp: A combined experimental and computational approach. J Mech Behav Biomed Mater 2023; 147:106139. [PMID: 37757616 DOI: 10.1016/j.jmbbm.2023.106139] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 03/02/2023] [Revised: 05/03/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Abstract
Fasciae are soft tissues permitting a large but finite sliding between organs, but also between skin and its underlying elements. The contribution of fasciae has been seldomly reported in the literature, and is usually neglected or overly simplified within simulations. In the present contribution, we propose to use peeling tests in order to quantify the skin-to-bone interaction associated with a simple computational approach based on a geometrical modeling of the skin-to-bone interface. To this aim, a new experimental set up combined with a computational model to characterize the skin-to-bone interaction were proposed. The current work is devoted to the porcine scalp complex since it constitutes a common mechanical surrogate for the human scalp complex. The ad hoc computational approach and peeling set up were firstly evaluated on a validation material, before being used to characterize the skin-to-bone interaction within 6 porcine specimens harvested from the scalp. Our experimental setup allowed to measure the peeling response of porcine scalp, showing a three-regimes response including a plateau force. The computational approach satisfyingly reproduced the peeling response based uniquely on experimental-based parameters and on a discrete modeling of skin-to-bone interface. The presented methodology is a first attempt to propose a computationally efficient geometrically based model able to take into account the skin-to-bone interaction up to failure and corroborated by experimental data, and may be largely extended to the modeling of soft interactions between biological human tissues in the future.
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Affiliation(s)
- Y Vallet
- CNRS UMR 7239 LEM3 - Université de Lorraine, Nancy, France.
| | - A Baldit
- CNRS UMR 7239 LEM3 - Université de Lorraine, Nancy, France
| | - C Bertholdt
- Université de Lorraine, CHRU-NANCY, Pôle de la Femme, F-54000, Nancy, France; IADI, INSERM U1254, Rue du Morvan, 54500, Vandoeuvre-lès-nancy, France
| | - R Rahouadj
- CNRS UMR 7239 LEM3 - Université de Lorraine, Nancy, France
| | - O Morel
- Université de Lorraine, CHRU-NANCY, Pôle de la Femme, F-54000, Nancy, France; IADI, INSERM U1254, Rue du Morvan, 54500, Vandoeuvre-lès-nancy, France
| | - C Laurent
- CNRS UMR 7239 LEM3 - Université de Lorraine, Nancy, France
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Vallet Y, Lefebvre J, Laurent C, Rahouadj R, Morel O, Bertholdt C. A preliminary quantification of the clinical gesture during vacuum assisted delivery on a training dummy. Clin Biomech (Bristol, Avon) 2023; 109:106093. [PMID: 37734119 DOI: 10.1016/j.clinbiomech.2023.106093] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 09/05/2023] [Accepted: 09/12/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND The vacuum assisted delivery represents, in France, the most used operative vaginal delivery technique. The purpose was to provide a preliminar quantification of the operator's hand kinematics while performing a vacuum assisted delivery. METHODS A group of 21 participants composed of 12 trainees and 9 obstetricians were recorded performing a vacuum assisted delivery on a training dummy, the matching fetal presentation was a left occiput anterior position. FINDINGS The mean movement was composed of a first phase corresponding to a descendant pull, followed by an ascendant finish of the gesture. No significative difference were found between the trainees and the obstetricians' mean gesture. INTERPRETATION This is the first quantification of the clinical gesture associated with the vacuum assisted delivery.
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Affiliation(s)
- Y Vallet
- CNRS UMR 7239 LEM3 - Université de Lorraine, Nancy, France.
| | - J Lefebvre
- Université de Lorraine, CHRU-NANCY, Pôle de la Femme, F-54000 Nancy, France
| | - C Laurent
- CNRS UMR 7239 LEM3 - Université de Lorraine, Nancy, France
| | - R Rahouadj
- CNRS UMR 7239 LEM3 - Université de Lorraine, Nancy, France
| | - O Morel
- Université de Lorraine, CHRU-NANCY, Pôle de la Femme, F-54000 Nancy, France; IADI, INSERM U1254, Rue du Morvan, 54500 Vandoeuvre-lès-Nancy, France
| | - C Bertholdt
- Université de Lorraine, CHRU-NANCY, Pôle de la Femme, F-54000 Nancy, France; IADI, INSERM U1254, Rue du Morvan, 54500 Vandoeuvre-lès-Nancy, France
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Vallet Y, Laurent C, Bertholdt C, Rahouadj R, Morel O. Analysis of suction-based gripping strategies in wildlife towards future evolutions of the obstetrical suction cup. Bioinspir Biomim 2022; 17:061003. [PMID: 36206746 DOI: 10.1088/1748-3190/ac9878] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
The design of obstetrical suction cups used for vacuum assisted delivery has not substantially evolved through history despite of its inherent limitations. The associated challenges concern both the decrease of risk of soft tissue damage and failure of instrumental delivery due to detachment of the cup. The present study firstly details some of the suction-based strategies that have been developed in wildlife in order to create and maintain an adhesive contact with potentially rough and uneven substratum in dry or wet environments. Such strategies have permitted the emergence of bioinspired suction-based devices in the fields of robotics or biomedical patches that are briefly reviewed. The objective is then to extend the observations of such suction-based strategies toward the development of innovative medical suction cups. We firstly conclude that the overall design, shape and materials of the suction cups could be largely improved. We also highlight that the addition of a patterned surface combined with a viscous fluid at the interface between the suction cup and scalp could significantly limit the detachment rate and the differential pressure required to exert a traction force. In the future, the development of a computational model including a detailed description of scalp properties should allow to experiment various designs of bioinspired suction cups.
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Affiliation(s)
- Y Vallet
- CNRS UMR 7239 LEM3-Université de Lorraine, Nancy, France
| | - C Laurent
- CNRS UMR 7239 LEM3-Université de Lorraine, Nancy, France
| | - C Bertholdt
- Université de Lorraine, CHRU-NANCY, Pôle de la Femme, F-54000 Nancy, France
- IADI, INSERM U1254, Rue du Morvan, 54500 Vandoeuvre-lès-Nancy, France
| | - R Rahouadj
- CNRS UMR 7239 LEM3-Université de Lorraine, Nancy, France
| | - O Morel
- Université de Lorraine, CHRU-NANCY, Pôle de la Femme, F-54000 Nancy, France
- IADI, INSERM U1254, Rue du Morvan, 54500 Vandoeuvre-lès-Nancy, France
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Baldit A, Dubus M, Sergheraert J, Kerdjoudj H, Mauprivez C, Rahouadj R. Biomechanical tensile behavior of human Wharton's jelly. J Mech Behav Biomed Mater 2021; 126:104981. [PMID: 34915358 DOI: 10.1016/j.jmbbm.2021.104981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 03/10/2021] [Revised: 11/02/2021] [Accepted: 11/12/2021] [Indexed: 02/08/2023]
Abstract
Wharton's jelly (WJ) is a mucous connective tissue of the umbilical cord. It shows high healing capabilities, mainly attributed to the chemical composition and to the presence of stem cells, growth factors and peptides. Although WJ biological properties are well documented in vitro and in vivo, there is still a lack of mechanical data on this tissue, which is paramount for its use as a biomaterial for medical applications. In this study, mechanical responses of ten WJ samples within close physiological conditions were registered undergoing quasi static cyclic tensile tests followed by a load up to failure. This protocol aimed on one hand to provide biomechanical data to feed predictive numerical models and on the other hand increase WJ knowledge in view of its potential use in biomedical field. In spite of the WJ harvest, the resulting viscous nonlinear elastic response obtained is fully in tune with the literature confirming the database quality. A side of the knowledge improvement on WJ mechanical response, this paper provides accurate data that will enhance predictive simulation work such as finite element analysis. The mechanical step-through brought by the analytical nonlinear characterization over cyclic and ultimate loads is to predict WJ behavior. Actually, principal component analysis highlighted its quality while pointing out indicators, such as failure or hydration criteria, as well as models' limitations.
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Affiliation(s)
- Adrien Baldit
- LEM3-UMR-7239, CNRS - Université de Lorraine - Arts et Métiers ParisTech, France; ENIM, Université de Lorraine, METZ, France.
| | - Marie Dubus
- Université de Reims Champagne Ardenne, Biomatériaux et Inflammation en Site Osseux (BIOS) EA 4691, 51100, Reims, France
| | - Johan Sergheraert
- Université de Reims Champagne Ardenne, Biomatériaux et Inflammation en Site Osseux (BIOS) EA 4691, 51100, Reims, France; Centre Hospitalier Universitaire de Reims, France
| | - Halima Kerdjoudj
- Université de Reims Champagne Ardenne, Biomatériaux et Inflammation en Site Osseux (BIOS) EA 4691, 51100, Reims, France
| | - Cedric Mauprivez
- Université de Reims Champagne Ardenne, Biomatériaux et Inflammation en Site Osseux (BIOS) EA 4691, 51100, Reims, France; Centre Hospitalier Universitaire de Reims, France
| | - Rachid Rahouadj
- LEM3-UMR-7239, CNRS - Université de Lorraine - Arts et Métiers ParisTech, France
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do Nascimento RM, Schmitt JF, Sarig U, Rodrigues JEFS, Pecharromán C, Ramos AP, Ciancaglini P, Faita FL, Rahouadj R, Hernandes AC, Bechtold IH. Surface Wettability of a Natural Rubber Composite under Stretching: A Model to Predict Cell Survival. Langmuir 2021; 37:4639-4646. [PMID: 33826341 DOI: 10.1021/acs.langmuir.1c00430] [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: 06/12/2023]
Abstract
We report the stress-strain effect of a stretchable natural rubber (NR)-calcium phosphate composite on the surface wettability (SW) using an innovative approach coupling a uniaxial tensile micromachine, goniometer, and microscope. In situ contact angle measurements in real time were performed during mechanical tension. Our results show that SW is guided by the stress-strain relationship with two different characteristics, depending on the static or dynamic experiments. The results evidenced the limits of the classical theory of wetting. Furthermore, based on the mechanically tunable SW of the system associated with the cytocompatibility of the NR composite, we have modeled such a system for application as a cell support. From the experimental surface energy value, our proposed 3D modeling numerical simulation predicted a window of opportunities for cell-NR survival under mechanical stimuli. The presented data and the thermodynamics-based theoretical approach enable not only accurate correlation of SW with mechanical properties of the NR composite but also provide huge potential for future cell supportability in view of tissue engineering.
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Affiliation(s)
- Rodney Marcelo do Nascimento
- Departamento de Física, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
- São Carlos Institute of Physics, University of São Paulo (USP), Sao Carlos 13566-590, Brazil
- Laboratoire d'Etude des Microstructures, de Mécanique des Matériaux et du Vivant, LEM3 UMR CNRS 7239, University of Lorraine Nancy- Metz, Nancy 57070, France
| | - Jean-François Schmitt
- Laboratoire d'Etude des Microstructures, de Mécanique des Matériaux et du Vivant, LEM3 UMR CNRS 7239, University of Lorraine Nancy- Metz, Nancy 57070, France
| | - Udi Sarig
- Biotechnology & Food Engineering Technion-Israel Institute of Technology, Haifa 32000 Israel
- Guangdong Technion-Israel Institute of Technology, Shantou 515063, China
| | - João Elias Figueiredo Soares Rodrigues
- Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain
- European Synchrotron Radiation Facility, ESRF, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Carlos Pecharromán
- Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain
| | - Ana Paula Ramos
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo (USP), Ribeiro Preto 14040-900, Brazil
| | - Pietro Ciancaglini
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, University of São Paulo (USP), Ribeiro Preto 14040-900, Brazil
| | - Fabricio Luiz Faita
- Universidade Federal do Rio Grande do Sul, Instituto de Física (UFRGS), 91501970 Porto Alegre, Brazil
| | - Rachid Rahouadj
- Laboratoire d'Etude des Microstructures, de Mécanique des Matériaux et du Vivant, LEM3 UMR CNRS 7239, University of Lorraine Nancy- Metz, Nancy 57070, France
| | | | - Ivan Helmuth Bechtold
- Departamento de Física, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
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Okley S, Mauprivez C, Prada P, Dubus M, Velard F, Rahouadj R, Kerdjoudj H, Baldit A. Haemostatic sponges as an alternative to granular bone substitute for sinus lifts. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1813429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- S. Okley
- LEM3-UMR-7239, CNRS - Université de Lorraine - Arts et Métiers ParisTech
- ENIM, Université de Lorraine, Metz, France
- EA 4691 « Biomatériaux et Inflammation en Site Osseux » (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, France
| | - C. Mauprivez
- EA 4691 « Biomatériaux et Inflammation en Site Osseux » (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, France
| | - P. Prada
- EA 4691 « Biomatériaux et Inflammation en Site Osseux » (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, France
| | - M. Dubus
- EA 4691 « Biomatériaux et Inflammation en Site Osseux » (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, France
| | - F. Velard
- EA 4691 « Biomatériaux et Inflammation en Site Osseux » (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, France
| | | | - H. Kerdjoudj
- EA 4691 « Biomatériaux et Inflammation en Site Osseux » (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, France
| | - A. Baldit
- LEM3-UMR-7239, CNRS - Université de Lorraine - Arts et Métiers ParisTech
- ENIM, Université de Lorraine, Metz, France
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Dubus M, Kerdjoudj H, Scomazzon L, Sergheraert J, Mauprivez C, Rahouadj R, Baldit A. Mechanical behaviour of a membrane made of human umbilical cord for dental bone regenerative medicine. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1812169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- M. Dubus
- Biomatériaux et Inflammation en Site Osseux (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, EA, France
| | - H. Kerdjoudj
- Biomatériaux et Inflammation en Site Osseux (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, EA, France
| | - L. Scomazzon
- Biomatériaux et Inflammation en Site Osseux (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, EA, France
| | - J. Sergheraert
- Biomatériaux et Inflammation en Site Osseux (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, EA, France
| | - C. Mauprivez
- Biomatériaux et Inflammation en Site Osseux (BIOS), Université de Reims Champagne Ardenne (URCA), Reims, EA, France
| | - R. Rahouadj
- LEM3-UMR-7239, CNRS – Université de Lorraine - Arts et Métiers ParisTech, Metz, France
| | - A. Baldit
- LEM3-UMR-7239, CNRS – Université de Lorraine - Arts et Métiers ParisTech, Metz, France
- ENIM, Université de Lorraine, Metz, France
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Gyliene V, Gylys G, Lipinski P, Wronski S, Tarasiuk J, Baldit A, Rahouadj R, Eidukynas V, Kraptavičiūte N. Characterization of mechanical behaviour of healthy and injured human incus by eigenfrequency evaluation. Proc Inst Mech Eng H 2020; 234:265-272. [PMID: 32126905 DOI: 10.1177/0954411920909054] [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] [Indexed: 11/17/2022]
Abstract
The usage of finite element method techniques gives a possibility to replace time-consuming experiments or imitate physical process in the ear by numerical simulation. Especially, the research of spatial motion of ossicular chain in the middle ear is of high interest for the oto-surgeons and engineers. It is known that the most affected bone from the ossicular chain is the incus. After the cholesteatoma operation and tympanoplasty, the affected incus is removed or sacrificed; thus, the possibility of transducing noise lays on the stapes, new titanium or other material prosthesis. In this case, the affected incus was removed because of the cholesteatoma that was lying in front of it in the tympanic cavity. The removed incus with the affected long process passed micro-computed tomography. The computer-aided design systems allowed redesigning a 'healthy' incus with an intact long process. In this way, it was possible to evaluate the influence of damaged long process of incus in the vibrational analysis. This article analyses the problems of mechanical behaviour of injured and healthy human incus. The numerical simulation has demonstrated that the features of healthy incus and analysed injured incus do not differ significantly, especially at low (about 500 Hz) frequencies. It explains why there is no impact of cholesteatoma on hearing for a long time in the audiogram.
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Affiliation(s)
- Virginija Gyliene
- Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Kaunas, Lithuania
| | - Giedrius Gylys
- Department of Otolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Pawel Lipinski
- Laboratory of Mechanics, Physics and Mathematics, Ecole Nationale d'Ingenieurs de Metz, University of Lorraine, Metz, France
| | - Sebastian Wronski
- Department of Condensed Matter Physics, AGH University of Science and Technology, Krakow, Poland
| | - Jacek Tarasiuk
- Department of Condensed Matter Physics, AGH University of Science and Technology, Krakow, Poland
| | - Adrien Baldit
- Laboratory of Mechanics, Physics and Mathematics, Ecole Nationale d'Ingenieurs de Metz, University of Lorraine, Metz, France
| | | | - Valdas Eidukynas
- Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Kaunas, Lithuania
| | - Neringa Kraptavičiūte
- Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Kaunas, Lithuania
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do Nascimento RM, Sarig U, da Cruz NC, de Carvalho VR, Eyssartier C, Siad L, Ganghoffer J, Hernandes AC, Rahouadj R. Optimized‐Surface Wettability: A New Experimental 3D Modeling Approach Predicting Favorable Biomaterial–Cell Interactions. Adv Theory Simul 2019. [DOI: 10.1002/adts.201900079] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Rodney Marcelo do Nascimento
- São Carlos Institute of PhysicsUniversity of São Paulo USP 13566‐590 Brazil
- Laboratoire d'Etude des Microstructures et de Mécanique des MatériauxLEM3 UMR CNRS 7239University of Lorraine Nancy‐Metz 57070 France
- Departamento de FisicaUniversidade Federal de Santa CatarinaCampus Reitor Joao David Ferreira Lima, s/n, Trindade Florianopolis 88040‐900 Brazil
| | - Udi Sarig
- Biotechnology & Food EngineeringTechnion – Israel Institute of Technology 32000 Haifa Israel
- Biotechnology & Food EngineeringGuangdong‐Technion Israel Institute of Technology 515063 Shantou Guangdong Province P. R. China
| | | | | | - Camille Eyssartier
- Ecole Nationale Supérieure des Mines de Nancy Campus Artem – CS 14 234, 92 France
| | - Larbi Siad
- Biomatériaux et inflammation en site osseuxBIOSUniversité de Reims EA 4691 CNRS 51095 France
| | - Jean‐François Ganghoffer
- Laboratoire d'Etude des Microstructures et de Mécanique des MatériauxLEM3 UMR CNRS 7239University of Lorraine Nancy‐Metz 57070 France
| | | | - Rachid Rahouadj
- Laboratoire d'Etude des Microstructures et de Mécanique des MatériauxLEM3 UMR CNRS 7239University of Lorraine Nancy‐Metz 57070 France
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Laurent C, Liu X, De Isla N, Wang X, Rahouadj R. Defining a scaffold for ligament tissue engineering: What has been done, and what still needs to be done. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.jocit.2018.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Laurent CP, Vaquette C, Liu X, Schmitt JF, Rahouadj R. Suitability of a PLCL fibrous scaffold for soft tissue engineering applications: A combined biological and mechanical characterisation. J Biomater Appl 2018; 32:1276-1288. [PMID: 29409376 DOI: 10.1177/0885328218757064] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Poly(lactide-co-ε-caprolactone) (PLCL) has been reported to be a good candidate for tissue engineering because of its good biocompatibility. Particularly, a braided PLCL scaffold (PLL/PCL ratio = 85/15) has been recently designed and partially validated for ligament tissue engineering. In the present study, we assessed the in vivo biocompatibility of acellular and cellularised scaffolds in a rat model. We then determined its in vitro biocompatibility using stem cells issued from both bone marrow and Wharton Jelly. From a biological point of view, the scaffold was shown to be suitable for tissue engineering in all these cases. Secondly, while the initial mechanical properties of this scaffold have been previously reported to be adapted to load-bearing applications, we studied the evolution in time of the mechanical properties of PLCL fibres due to hydrolytic degradation. Results for isolated PLCL fibres were extrapolated to the fibrous scaffold using a previously developed numerical model. It was shown that no accumulation of plastic strain was to be expected for a load-bearing application such as anterior cruciate ligament tissue engineering. However, PLCL fibres exhibited a non-expected brittle behaviour after two months. This may involve a potential risk of premature failure of the scaffold, unless tissue growth compensates this change in mechanical properties. This combined study emphasises the need to characterise the properties of biomaterials in a pluridisciplinary approach, since biological and mechanical characterisations led in this case to different conclusions concerning the suitability of this scaffold for load-bearing applications.
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Affiliation(s)
| | - Cédryck Vaquette
- 2 95541 Queensland University of Technology (QUT) , Brisbane, Australia
| | - Xing Liu
- 3 CNRS, IMoPA, UMR 7365, Biopôle, Université de Lorraine, France
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Tappert LK, Baldit A, Rahouadj R, Lipinski P. Local elastic properties characterization of the temporo-mandibular joint disc through macro-indentation. Comput Methods Biomech Biomed Engin 2017; 20:201-202. [DOI: 10.1080/10255842.2017.1382932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- LK. Tappert
- LEM3, University of Lorraine (ENIM), 1 route d’Ars Laquenexy, BP 65820, 57078 Metz Cedex 3, France
| | - A. Baldit
- LEM3, University of Lorraine (ENIM), 1 route d’Ars Laquenexy, BP 65820, 57078 Metz Cedex 3, France
| | - R. Rahouadj
- LEMTA, University of Lorraine (ENSEM), 2 Avenue de la Forêt de Haye, BP 90161, 54505 Vandœuvre-lès-Nancy cedex, France
| | - P. Lipinski
- LEM3, University of Lorraine (ENIM), 1 route d’Ars Laquenexy, BP 65820, 57078 Metz Cedex 3, France
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Duval C, Rahouadj R, Nouvel C, Six JL. PLGA with less than 1 month of half-life time: Tensile properties in dry and wet states and hydrolytic degradation. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1354197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Charlotte Duval
- Laboratoire de Chimie Physique Macromoléculaire, Université de Lorraine, Nancy, France
- Laboratoire de Chimie Physique Macromoléculaire, CNRS, Nancy, France
| | - Rachid Rahouadj
- Laboratoire d’Energétique et de Mécanique Théorique Appliquée, CNRS-Lorraine University, ENSEM, Vandœuvre-lès-Nancy, France
| | - Cécile Nouvel
- Laboratoire de Chimie Physique Macromoléculaire, Université de Lorraine, Nancy, France
- Laboratoire de Chimie Physique Macromoléculaire, CNRS, Nancy, France
| | - Jean-Luc Six
- Laboratoire de Chimie Physique Macromoléculaire, Université de Lorraine, Nancy, France
- Laboratoire de Chimie Physique Macromoléculaire, CNRS, Nancy, France
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Schiavi J, Reppel L, Charif N, de Isla N, Mainard D, Benkirane-Jessel N, Stoltz JF, Rahouadj R, Huselstein C. Mechanical stimulations on human bone marrow mesenchymal stem cells enhance cells differentiation in a three-dimensional layered scaffold. J Tissue Eng Regen Med 2017; 12:360-369. [PMID: 28486755 DOI: 10.1002/term.2461] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 08/24/2016] [Revised: 03/20/2017] [Accepted: 05/04/2017] [Indexed: 11/05/2022]
Abstract
Scaffolds laden with stem cells are a promising approach for articular cartilage repair. Investigations have shown that implantation of artificial matrices, growth factors or chondrocytes can stimulate cartilage formation, but no existing strategies apply mechanical stimulation on stratified scaffolds to mimic the cartilage environment. The purpose of this study was to adapt a spraying method for stratified cartilage engineering and to stimulate the biosubstitute. Human mesenchymal stem cells from bone marrow were seeded in an alginate (Alg)/hyaluronic acid (HA) or Alg/hydroxyapatite (Hap) gel to direct cartilage and hypertrophic cartilage/subchondral bone differentiation, respectively, in different layers within a single scaffold. Homogeneous or composite stratified scaffolds were cultured for 28 days and cell viability and differentiation were assessed. The heterogeneous scaffold was stimulated daily. The mechanical behaviour of the stratified scaffolds were investigated by plane-strain compression tests. Results showed that the spraying process did not affect cell viability. Moreover, cell differentiation driven by the microenvironment was increased with loading: in the layer with Alg/HA, a specific extracellular matrix of cartilage, composed of glycosaminoglycans and type II collagen was observed, and in the Alg/Hap layer more collagen X was detected. Hap seemed to drive cells to a hypertrophic chondrocytic phenotype and increased mechanical resistance of the scaffold. In conclusion, mechanical stimulations will allow for the production of a stratified biosubstitute, laden with human mesenchymal stem cells from bone marrow, which is capable in vivo to mimic all depths of chondral defects, thanks to an efficient combination of stem cells, biomaterial compositions and mechanical loading.
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Affiliation(s)
- Jessica Schiavi
- CNRS UMR 7365 - Lorraine University, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Vandœuvre-lès-Nancy, France.,Fédération de Recherche 3209, Bioingénierie Moléculaire Cellulaire et Thérapeutique, Vandœuvre-lès-Nancy, France
| | - Loïc Reppel
- CNRS UMR 7365 - Lorraine University, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Vandœuvre-lès-Nancy, France.,Fédération de Recherche 3209, Bioingénierie Moléculaire Cellulaire et Thérapeutique, Vandœuvre-lès-Nancy, France.,CHRU de Nancy, Unité de Thérapie Cellulaire et Tissulaire, Vandœuvre-lès-Nancy, France
| | - Naceur Charif
- CNRS UMR 7365 - Lorraine University, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Vandœuvre-lès-Nancy, France.,Fédération de Recherche 3209, Bioingénierie Moléculaire Cellulaire et Thérapeutique, Vandœuvre-lès-Nancy, France
| | - Natalia de Isla
- CNRS UMR 7365 - Lorraine University, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Vandœuvre-lès-Nancy, France.,Fédération de Recherche 3209, Bioingénierie Moléculaire Cellulaire et Thérapeutique, Vandœuvre-lès-Nancy, France
| | - Didier Mainard
- CNRS UMR 7365 - Lorraine University, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Vandœuvre-lès-Nancy, France.,Fédération de Recherche 3209, Bioingénierie Moléculaire Cellulaire et Thérapeutique, Vandœuvre-lès-Nancy, France.,CHRU de Nancy, Chirurgie Orthopédique et Traumatologique, Nancy, France
| | | | - Jean-François Stoltz
- CNRS UMR 7365 - Lorraine University, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Vandœuvre-lès-Nancy, France.,Fédération de Recherche 3209, Bioingénierie Moléculaire Cellulaire et Thérapeutique, Vandœuvre-lès-Nancy, France.,CHRU de Nancy, Unité de Thérapie Cellulaire et Tissulaire, Vandœuvre-lès-Nancy, France
| | - Rachid Rahouadj
- CNRS - UMR 7563 - Lorraine University, Vandœuvre-lès-Nancy, France
| | - Céline Huselstein
- CNRS UMR 7365 - Lorraine University, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Vandœuvre-lès-Nancy, France.,Fédération de Recherche 3209, Bioingénierie Moléculaire Cellulaire et Thérapeutique, Vandœuvre-lès-Nancy, France
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15
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Huselstein C, Rahouadj R, de Isla N, Bensoussan D, Stoltz JF, Li YP. Mechanobiology of mesenchymal stem cells: Which interest for cell-based treatment? Biomed Mater Eng 2017; 28:S47-S56. [PMID: 28372277 DOI: 10.3233/bme-171623] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Thanks to their immune properties, the mesenchymal stem cells (MSC) are a promising source for cell therapy. Current clinical trials show that MSC administrated to patients can treat different diseases (graft-versus-host disease (GVHD), liver cirrhosis, systemic lupus, erythematosus, rheumatoid arthritis, type I diabetes…). In this case, the most common mode of cell administration is the intravenous injection, and the hemodynamic environment of cells induced by blood circulation could interfere on their behavior during the migration and homing towards the injured site. After a brief review of the mechanobiology concept, this paper will help in understanding how the mechanical environment could interact with MSC behavior once they are injected to patient in cell-based treatment.
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Affiliation(s)
- Céline Huselstein
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, 54500 Vandœuvre-lès-Nancy, France.,Université de Lorraine, 54000 Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, F-54505 Vandœuvre-lès-Nancy, France
| | - R Rahouadj
- Université de Lorraine, 54000 Nancy, France.,UMR 7563 CNRS-Université de Lorraine, LEMTA, Vandœuvre-lès-Nancy, France
| | - N de Isla
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, 54500 Vandœuvre-lès-Nancy, France.,Université de Lorraine, 54000 Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, F-54505 Vandœuvre-lès-Nancy, France
| | - D Bensoussan
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, 54500 Vandœuvre-lès-Nancy, France.,Université de Lorraine, 54000 Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, F-54505 Vandœuvre-lès-Nancy, France.,CHU de Nancy, Unité de Thérapie Cellulaire, banque de Tissus, 54500 Vandœuvre-lès-Nancy, France
| | - J F Stoltz
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, 54500 Vandœuvre-lès-Nancy, France.,Université de Lorraine, 54000 Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, F-54505 Vandœuvre-lès-Nancy, France
| | - Y P Li
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
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16
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Avercenc-Léger L, Guerci P, Virion JM, Cauchois G, Hupont S, Rahouadj R, Magdalou J, Stoltz JF, Bensoussan D, Huselstein C, Reppel L. Umbilical cord-derived mesenchymal stromal cells: predictive obstetric factors for cell proliferation and chondrogenic differentiation. Stem Cell Res Ther 2017; 8:161. [PMID: 28676126 PMCID: PMC5497358 DOI: 10.1186/s13287-017-0609-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 05/09/2017] [Accepted: 06/14/2017] [Indexed: 01/20/2023] Open
Abstract
Background The umbilical cord is becoming a notable alternative to bone marrow (BM) as a source of mesenchymal stromal cells (MSC). Although age-dependent variations in BM-MSC are well described, less data are available for MSC isolated from Wharton’s jelly (WJ-MSC). We initiated a study to identify whether obstetric factors influenced MSC properties. We aimed to evaluate the correlation between a large number of obstetric factors collected during pregnancy and until peripartum (related to the mother, the labor and delivery, and the newborn) with WJ-MSC proliferation and chondrogenic differentiation parameters. Methods Correlations were made between 27 obstetric factors and 8 biological indicators including doubling time at passage (P)1 and P2, the percentage of proteoglycans and collagens, and the relative transcriptional expression of Sox-9, aggrecans, and total type 2 collagen (Coll2T). Results Amongst the obstetric factors considered, birth weight, the number of amenorrhea weeks, placental weight, normal pregnancy, and the absence of preeclampsia were identified as relevant factors for cell expansion, using multivariate linear regression analysis. Since all the above parameters are related to term, we concluded that WJ-MSC from healthy, full-term infants exhibit greater proliferation capacity. As for chondrogenesis, we also observed that obstetric factors influencing proliferation seemed beneficial, with no negative impact on MSC differentiation. Conclusions Awareness of obstetric factors influencing the proliferation and/or differentiation of WJ-MSC will make it possible to define criteria for collecting optimal umbilical cords with the aim of decreasing the variability of WJ-MSC batches produced for clinical use in cell and tissue engineering. Electronic supplementary material The online version of this article (doi:10.1186/s13287-017-0609-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Léonore Avercenc-Léger
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Philippe Guerci
- CHRU de Nancy, Maternité Régionale Universitaire, Département d'Anesthésie-Réanimation, 54000, Nancy, France
| | - Jean-Marc Virion
- CHRU de Nancy, Epidémiologie et Evaluation Cliniques, 54500, Vandœuvre-lès-Nancy, France
| | - Ghislaine Cauchois
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Sébastien Hupont
- FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Rachid Rahouadj
- Université de Lorraine, 54000, Nancy, France.,UMR 7563 CNRS-Université de Lorraine, LEMTA, 54500, Vandœuvre-lès-Nancy, France
| | - Jacques Magdalou
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Jean-François Stoltz
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,CHRU de Nancy, Unité de Thérapie Cellulaire¸ Banque de Tissus, 54500, Vandœuvre-lès-Nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Danièle Bensoussan
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,CHRU de Nancy, Unité de Thérapie Cellulaire¸ Banque de Tissus, 54500, Vandœuvre-lès-Nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Céline Huselstein
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France.,Université de Lorraine, 54000, Nancy, France.,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France
| | - Loïc Reppel
- UMR 7365 CNRS-Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus biologie-santé, Faculté de Médecine, Avenue de la Forêt de Haye, BP 184, 54500, Vandoeuvre-Les-nancy, France. .,CHRU de Nancy, Unité de Thérapie Cellulaire¸ Banque de Tissus, 54500, Vandœuvre-lès-Nancy, France. .,Université de Lorraine, 54000, Nancy, France. .,FR3209 CNRS BMCT - Bio-Ingénierie Moléculaire Cellulaire et Thérapeutique, Faculté de Médecine, 54500, Vandœuvre-lès-Nancy, France.
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17
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Yu H, Cauchois G, Schmitt JF, Louvet N, Six JL, Chen Y, Rahouadj R, Huselstein C. Is there a cause-and-effect relationship between physicochemical properties and cell behavior of alginate-based hydrogel obtained after sterilization? J Mech Behav Biomed Mater 2017; 68:134-143. [DOI: 10.1016/j.jmbbm.2017.01.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 01/21/2017] [Accepted: 01/24/2017] [Indexed: 11/25/2022]
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18
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Yu H, Cauchois G, Louvet N, Chen Y, Rahouadj R, Huselstein C. Comparison of MSC properties in two different hydrogels. Impact of mechanical properties. Biomed Mater Eng 2017; 28:S193-S200. [DOI: 10.3233/bme-171641] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Hao Yu
- UMR 7365 CNRS, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Université de Lorraine, 54500, Vandoeuvre-lès-Nancy, France
- Fédération de Recherche 3209, Bioingénierie Moléculaire Cellulaire et Thérapeutique, 54500 Vandoeuvre-lès-Nancy, France
| | - Ghislaine Cauchois
- UMR 7365 CNRS, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Université de Lorraine, 54500, Vandoeuvre-lès-Nancy, France
- Fédération de Recherche 3209, Bioingénierie Moléculaire Cellulaire et Thérapeutique, 54500 Vandoeuvre-lès-Nancy, France
| | - Nicolas Louvet
- CNRS UMR 7563, Group of Biomechanics and Bioengineering, Université de Lorraine, 54500 Vandoeuvre-lès-Nancy, France
| | - Yun Chen
- Department of Biomedical Engineering, School of Basic Medical Science, Wuhan University, Wuhan 430071, China
| | - Rachid Rahouadj
- CNRS UMR 7563, Group of Biomechanics and Bioengineering, Université de Lorraine, 54500 Vandoeuvre-lès-Nancy, France
| | - Céline Huselstein
- UMR 7365 CNRS, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Université de Lorraine, 54500, Vandoeuvre-lès-Nancy, France
- Fédération de Recherche 3209, Bioingénierie Moléculaire Cellulaire et Thérapeutique, 54500 Vandoeuvre-lès-Nancy, France
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19
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Laurent CP, Ganghoffer JF, Rahouadj R. An Attempt to Predict the Preferential Cellular Orientation in Any Complex Mechanical Environment. Bioengineering (Basel) 2017; 4:bioengineering4010016. [PMID: 28952494 PMCID: PMC5590443 DOI: 10.3390/bioengineering4010016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 02/06/2017] [Accepted: 02/20/2017] [Indexed: 12/13/2022] Open
Abstract
Cells respond to their mechanical environment in different ways: while their response in terms of differentiation and proliferation has been widely studied, the question of the direction in which cells align when subject to a complex mechanical loading in a 3D environment is still widely open. In the present paper, we formulate the hypothesis that the cells orientate in the direction of unitary stretch computed from the right Cauchy-Green tensor in a given mechanical environment. The implications of this hypothesis are studied in different simple cases corresponding to either the available in vitro experimental data or physiological conditions, starting from finite element analysis results to computed preferential cellular orientation. The present contribution is a first step to the formulation of a deeper understanding of the orientation of cells within or at the surface of any 3D scaffold subject to any complex load. It is believed that these initial preferential directions have strong implications as far as the anisotropy of biological structures is concerned.
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Affiliation(s)
- Cédric P Laurent
- CNRS, LEMTA, UMR 7563, Université de Lorraine, 2 Avenue de la Forêt de Haye, 54502 Vandoeuvre-lès-Nancy, France.
| | - Jean-François Ganghoffer
- CNRS, LEMTA, UMR 7563, Université de Lorraine, 2 Avenue de la Forêt de Haye, 54502 Vandoeuvre-lès-Nancy, France.
| | - Rachid Rahouadj
- CNRS, LEMTA, UMR 7563, Université de Lorraine, 2 Avenue de la Forêt de Haye, 54502 Vandoeuvre-lès-Nancy, France.
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20
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Arieby RB, Mrabet K, Terfas OA, Laurent C, Rahouadj R. Anisotropic mechanical behavior of semi-crystalline polymers: Characterization and modeling of non-monotonic loading including damage. J Appl Polym Sci 2017. [DOI: 10.1002/app.44468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rida B. Arieby
- Department of Mechanical & Industrial Engineering; University of Tripoli; P.O. Box 13589 Tripoli Libya
| | - Kaïs Mrabet
- LASMAP, Tunisia Polytechnic School, University of Carthage; B.P. 743-2078 Marsa Tunisia
| | - Osama A. Terfas
- Department of Marine & Offshore Engineering; University of Tripoli; P.O. Box 13589 Tripoli Libya
| | - Cédric Laurent
- CNRS, LEMTA, UMR 7563, Université de Lorraine, 54504 Vandoeuvre-lès-Nancy; France
| | - Rachid Rahouadj
- CNRS, LEMTA, UMR 7563, Université de Lorraine, 54504 Vandoeuvre-lès-Nancy; France
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21
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Laurent CP, Latil P, Durville D, Rahouadj R, Geindreau C, Orgéas L, Ganghoffer JF. Mechanical behaviour of a fibrous scaffold for ligament tissue engineering: Finite elements analysis vs. X-ray tomography imaging. J Mech Behav Biomed Mater 2014; 40:222-233. [DOI: 10.1016/j.jmbbm.2014.09.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 08/25/2014] [Accepted: 09/02/2014] [Indexed: 11/30/2022]
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22
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Torres-Silva R, Lopes-Martins RAB, Bjordal JM, Frigo L, Rahouadj R, Arnold G, Leal-Junior ECP, Magdalou J, Pallotta R, Marcos RL. The low level laser therapy (LLLT) operating in 660 nm reduce gene expression of inflammatory mediators in the experimental model of collagenase-induced rat tendinitis. Lasers Med Sci 2014; 30:1985-90. [PMID: 25380666 DOI: 10.1007/s10103-014-1676-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 10/16/2014] [Indexed: 12/16/2022]
Abstract
Tendinopathy is a common disease with a variety of treatments and therapies. Laser therapy appears as an alternative treatment. Here, we investigate the effects of laser irradiation in an experimental model of tendinitis induced by collagenase injection on rats' Achilles tendon, verifying its action in important inflammatory markers. Male Wistar rats were used and divided into five groups: control saline (C), non-treated tendinitis (NT) and tendinitis treated with sodium diclofenac (D) or laser (1 J) and (3 J). The tendinitis was induced by collagenase (100 μg/tendon) on the Achilles tendon, which was removed for further analyses. The gene expression for COX-2; TNF-α; IL-6; and IL-10 (RT-PCR) was measured. The laser irradiation (660 nm, 100 mW, 3 J) used in the treatment of the tendinitis induced by collagenase in Achilles tendon in rats was effective in the reduction of important pro-inflammatory markers such as IL-6 and TNF-α, becoming a promising tool for the treatment of tendon diseases.
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Affiliation(s)
- Romildo Torres-Silva
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University, São Paulo, 01504-001, Brazil
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23
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Marcos RL, Arnold G, Magnenet V, Rahouadj R, Magdalou J, Lopes-Martins RÁB. Biomechanical and biochemical protective effect of low-level laser therapy for Achilles tendinitis. J Mech Behav Biomed Mater 2013; 29:272-85. [PMID: 24126100 DOI: 10.1016/j.jmbbm.2013.08.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [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: 03/27/2013] [Revised: 08/23/2013] [Accepted: 08/27/2013] [Indexed: 11/25/2022]
Abstract
For three decades, low level laser therapy (LLLT) has been used for treatment of tendinitis as well as other musculoskeletal diseases. Nevertheless, the biological mechanisms involved remain not completely understood. In this work, the effects of LLLT and of the widely used nonsteroidal anti-inflammatory drug, diclofenac, have been compared in the case of collagenase-induced Achilles tendinitis. Wistar rats were treated with diclofenac or laser therapy. The tensile behavior of tendons was characterized through successive loading-unloading sequences. The method considered 11 characteristic parameters to describe the mechanical behavior. It was shown that during the acute inflammatory process of the tendon, the mechanical properties were significantly correlated to the high levels of MMP-3, MMP-9 and MMP-13 expression presented in a previous paper (Marcos, R.L., et al., 2012). The treatment by non-steroidal anti-inflammatory drugs such as diclofenac sodium produces a low protective effect and can affect the short-term biochemical and biomechanical properties. On the contrary, it is shown that LLLT exhibits the best results in terms of MMPs reduction and mechanical properties recovery. Thus, LLLT looks to be a promising and consistent treatment for tendinopathies.
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Affiliation(s)
- Rodrigo Labat Marcos
- University of Nove de Julho, Biophotonics Applied to Health Sciences, São Paulo 01504-001, Brazil; University of São Paulo (USP), Laboratory of Pharmacology and Experimental Therapeutics, Institute of Biomedical Sciences (ICB), São Paulo 05508-900, Brazil; Université de Lorraine (UL), Ingénierie Moléculaire, Physiopathologie Articulaire (IMoPA), UMR 7365 CNRS, Biopôle, F-54505 Vandœuvre-lès-Nancy, France
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24
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Laydi F, Rahouadj R, Cauchois G, Stoltz JF, de Isla N. Hydroxyapatite incorporated into collagen gels for mesenchymal stem cell culture. Biomed Mater Eng 2013; 23:311-5. [DOI: 10.3233/bme-130755] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- F. Laydi
- CNRS, UMR 7365 IMOPA, Biopôle-Campus Santé, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - R. Rahouadj
- CNRS, UMR 7563 LEMTA, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - G. Cauchois
- CNRS, UMR 7365 IMOPA, Biopôle-Campus Santé, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - J.-F. Stoltz
- CNRS, UMR 7365 IMOPA, Biopôle-Campus Santé, Université de Lorraine, Vandoeuvre-lès-Nancy, France
- CHU de Nancy, UTCT, Brabois, Vandoeuvre-lès-Nancy, France
| | - N. de Isla
- CNRS, UMR 7365 IMOPA, Biopôle-Campus Santé, Université de Lorraine, Vandoeuvre-lès-Nancy, France
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Maurice G, Rouxel D, Vincent B, Hadji R, Schmitt JF, Taghite M, Rahouadj R. Investigation of elastic constants of polymer/nanoparticles composites using the brillouin spectroscopy and the mechanical homogenization modeling. POLYM ENG SCI 2012. [DOI: 10.1002/pen.23397] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Marcos RL, Leal-Junior ECP, Arnold G, Magnenet V, Rahouadj R, Wang X, Demeurie F, Magdalou J, de Carvalho MHC, Lopes-Martins RÁB. Low-level laser therapy in collagenase-induced Achilles tendinitis in rats: analyses of biochemical and biomechanical aspects. J Orthop Res 2012; 30:1945-51. [PMID: 22674405 DOI: 10.1002/jor.22156] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 05/07/2012] [Indexed: 02/04/2023]
Abstract
NSAIDs are widely prescribed and used over the years to treat tendon injuries despite its well-known long-term side effects. In the last years several animal and human trials have shown that low-level laser therapy (LLLT) presents modulatory effects on inflammatory markers, however the mechanisms involved are not fully understood. The aim of this study was to evaluate the short-term effects of LLLT or sodium diclofenac treatments on biochemical markers and biomechanical properties of inflamed Achilles tendons. Wistar rats Achilles tendons (n = 6/group) were injected with saline (control) or collagenase at peritendinous area of Achilles tendons. After 1 h animals were treated with two different doses of LLLT (810 nm, 1 and 3 J) at the sites of the injections, or with intramuscular sodium diclofenac. Regarding biochemical analyses, LLLT significantly decreased (p < 0.05) COX-2, TNF-α, MMP-3, MMP-9, and MMP-13 gene expression, as well as prostaglandin E(2) (PGE(2) ) production when compared to collagenase group. Interestingly, diclofenac treatment only decreased PGE(2) levels. Biomechanical properties were preserved in the laser-treated groups when compared to collagenase and diclofenac groups. We conclude that LLLT was able to reduce tendon inflammation and to preserve tendon resistance and elasticity.
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Affiliation(s)
- Rodrigo Labat Marcos
- Laboratory of Pharmacology and Experimental Therapeutics, Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 1524, Butantan, São Paulo 05508-900, SP, Brazil
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Laurent CP, Durville D, Mainard D, Ganghoffer JF, Rahouadj R. A multilayer braided scaffold for Anterior Cruciate Ligament: Mechanical modeling at the fiber scale. J Mech Behav Biomed Mater 2012; 12:184-96. [DOI: 10.1016/j.jmbbm.2012.03.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 02/22/2012] [Accepted: 03/02/2012] [Indexed: 10/28/2022]
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Laurent CP, Durville D, Rahouadj R, Ganghoffer JF. COMPUTER-AIDED TISSUE ENGINEERING OF THE ANTERIOR CRUCIATE LIGAMENT. J Biomech 2012. [DOI: 10.1016/s0021-9290(12)70667-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Vaquette C, Slimani S, Kahn CJF, Tran N, Rahouadj R, Wang X. A Poly(lactic-co-glycolic acid) Knitted Scaffold for Tendon Tissue Engineering: An In Vitro and In Vivo Study. Journal of Biomaterials Science, Polymer Edition 2012; 21:1737-60. [DOI: 10.1163/092050609x12560455246676] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Cédryck Vaquette
- a Group of Cell and Tissue Engineering, LEMTA, Nancy-Université, CNRS, 2 avenue de la Forêt de Haye, 54 500 Vandoeuvre, France.
| | - Saïd Slimani
- b Group of Cell and Tissue Engineering, LEMTA, Nancy-Université, CNRS, 2 avenue de la Forêt de Haye, 54 500 Vandoeuvre, France
| | - Cyril J. F. Kahn
- c Group of Cell and Tissue Engineering, LEMTA, Nancy-Université, CNRS, 2 avenue de la Forêt de Haye, 54 500 Vandoeuvre, France
| | - Nguyen Tran
- d School of Surgery, Faculté de Médecine de Nancy, Nancy-Université, 9 avenue de la Forêt de Haye, 54 500 Vandoeuvre, France
| | - Rachid Rahouadj
- e Group of Cell and Tissue Engineering, LEMTA, Nancy-Université, CNRS, 2 avenue de la Forêt de Haye, 54 500 Vandoeuvre, France
| | - Xiong Wang
- f Group of Cell and Tissue Engineering, LEMTA, Nancy-Université, CNRS, 2 avenue de la Forêt de Haye, 54 500 Vandoeuvre, France
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Magnenet V, Schiavi-Tritz J, Huselstein C, Rahouadj R. Constitutive equations for Ca2+ -alginate gels. J Mech Behav Biomed Mater 2012; 5:90-8. [DOI: 10.1016/j.jmbbm.2011.08.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 08/13/2011] [Indexed: 10/17/2022]
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Laurent CP, Ganghoffer JF, Babin J, Six JL, Wang X, Rahouadj R. Morphological characterization of a novel scaffold for anterior cruciate ligament tissue engineering. J Biomech Eng 2011; 133:065001. [PMID: 21744936 DOI: 10.1115/1.4004250] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Tissue engineering offers an interesting alternative to current anterior cruciate ligament (ACL) surgeries. Indeed, a tissue-engineered solution could ideally overcome the long-term complications due to actual ACL reconstruction by being gradually replaced by biological tissue. Key requirements concerning the ideal scaffold for ligament tissue engineering are numerous and concern its mechanical properties, biochemical nature, and morphology. This study is aimed at predicting the morphology of a novel scaffold for ligament tissue engineering, based on multilayer braided biodegradable copoly(lactic acid-co-(e-caprolactone)) (PLCL) fibers The process used to create the scaffold is briefly presented, and the degradations of the material before and after the scaffold processing are compared. The process offers varying parameters, such as the number of layers in the scaffold, the pitch length of the braid, and the fibers' diameter. The prediction of the morphology in terms of pore size distribution and pores interconnectivity as a function of these parameters is performed numerically using an original method based on a virtual scaffold. The virtual scaffold geometry and the prediction of pore size distribution are evaluated by comparison with experimental results. The presented process permits creation of a tailorable scaffold for ligament tissue engineering using basic equipment and from minimum amounts of raw material. The virtual scaffold geometry closely mimics the geometry of real scaffolds, and the prediction of the pore size distribution is found to be in good accordance with measurements on real scaffolds. The scaffold offers an interconnected network of pores the sizes of which are adjustable by playing on the process parameters and are able to match the ideal pore size reported for tissue ingrowth. The adjustability of the presented scaffold could permit its application in both classical ACL reconstructions and anatomical double-bundle reconstructions. The precise knowledge of the scaffold morphology using the virtual scaffold will be useful to interpret the activity of cells once it will be seeded into the scaffold. An interesting perspective of the present work is to perform a similar study aiming at predicting the mechanical response of the scaffold according to the same process parameters, by implanting the virtual scaffold into a finite element algorithm.
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Affiliation(s)
- Cédric P Laurent
- LEMTA, Nancy-Université, CNRS UMR 7563, 2 Avenue Forêt de Haye, 54504 Vandœuvre-lès-Nancy, France.
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Laurent C, Durville D, Ganghoffer JF, Rahouadj R. Prediction of the morphological and mechanical properties of a novel scaffold for anterior cruciate ligament tissue engineering. Comput Methods Biomech Biomed Engin 2011. [DOI: 10.1080/10255842.2011.591631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Vaquette C, Kahn C, Frochot C, Nouvel C, Six JL, De Isla N, Luo LH, Cooper-White J, Rahouadj R, Wang X. Aligned poly(L-lactic-co-e-caprolactone) electrospun microfibers and knitted structure: a novel composite scaffold for ligament tissue engineering. J Biomed Mater Res A 2010; 94:1270-82. [PMID: 20694995 DOI: 10.1002/jbm.a.32801] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We developed a novel technique involving knitting and electrospinning to fabricate a composite scaffold for ligament tissue engineering. Knitted structures were coated with poly(L-lactic-co-e-caprolactone) (PLCL) and then placed onto a rotating cylinder and a PLCL solution was electrospun onto the structure. Highly aligned 2-microm-diameter microfibers covered the space between the stitches and adhered to the knitted scaffolds. The stress-strain tensile curves exhibited an initial toe region similar to the tensile behavior of ligaments. Composite scaffolds had an elastic modulus (150 +/- 14 MPa) similar to the modulus of human ligaments. Biological evaluation showed that cells proliferated on the composite scaffolds and they spontaneously orientated along the direction of microfiber alignment. The microfiber architecture also induced a high level of extracellular matrix secretion, which was characterized by immunostaining. We found that cells produced collagen type I and type III, two main components found in ligaments. After 14 days of culture, collagen type III started to form a fibrous network. We fabricated a composite scaffold having the mechanical properties of the knitted structure and the morphological properties of the aligned microfibers. It is difficult to seed a highly macroporous structure with cells, however the technique we developed enabled an easy cell seeding due to presence of the microfiber layer. Therefore, these scaffolds presented attractive properties for a future use in bioreactors for ligament tissue engineering.
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Affiliation(s)
- Cédryck Vaquette
- Group of Cell and Tissue Engineering, LEMTA, Nancy-Université, CNRS, Vandoeuvre, France.
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Abstract
Abstract
Although the mechanical properties of ligament and tendon are well documented in research literature, very few unified mechanical formulations can describe a wide range of different loadings. The aim of this study was to propose a new model, which can describe tendon responses to various solicitations such as cycles of loading, unloading, and reloading or successive relaxations at different strain levels. In this work, experiments with cycles of loading and reloading at increasing strain level and sequences of relaxation were performed on white New Zealand rabbit Achilles tendons. We presented a local formulation of thermodynamic evolution outside equilibrium at a representative element volume scale to describe the tendon’s macroscopic behavior based on the notion of relaxed stress. It was shown that the model corresponds quite well to the experimental data. This work concludes with the complexity of tendons’ mechanical properties due to various microphysical mechanisms of deformation involved in loading such as the recruitment of collagen fibers, the rearrangement of the microstructure (i.e., collagens type I and III, proteoglycans, and water), and the evolution of relaxed stress linked to these mechanisms.
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Affiliation(s)
- Cyril J.F. Kahn
- LEMTA, Cell and Tissue Engineering Group, Nancy-Université, 2 Avenue de la Forêt de Haye, BP 160, 54504 Vandoeuvre-lès-Nancy Cedex, France
| | - Xiong Wang
- LEMTA, UMR 7563, Cell and Tissue Engineering Group, Nancy-Université, CNRS, 2 Avenue de la Forêt de Haye, BP 160, 54504 Vandoeuvre-lès-Nancy Cedex, France; Physiopatholgie, Pharmacologie et Ingénierie Articulaires, UMR 7561, Nancy-Université, CNRS, 9 Avenue de la Forêt de Haye, 54500 Vandoeuvre-Lès-Nancy, France
| | - Rachid Rahouadj
- LEMTA, UMR 7563, Cell and Tissue Engineering Group, Nancy-Université, CNRS, 2 Avenue de la Forêt de Haye, BP 160, 54504 Vandoeuvre-lès-Nancy Cedex, France
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Laurent C, Durville D, Wang X, Ganghoffer J, Rahouadj R. Designing a new scaffold for anterior cruciate ligament tissue engineering. Comput Methods Biomech Biomed Engin 2010. [DOI: 10.1080/10255842.2010.494033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Vaquette C, Frochot C, Rahouadj R, Wang X. An innovative method to obtain porous PLLA scaffolds with highly spherical and interconnected pores. J Biomed Mater Res B Appl Biomater 2008; 86:9-17. [PMID: 18098188 DOI: 10.1002/jbm.b.30982] [Citation(s) in RCA: 38] [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: 11/10/2022]
Abstract
Scaffolding is an essential issue in tissue engineering and scaffolds should answer certain essential criteria: biocompatibility, high porosity, and important pore interconnectivity to facilitate cell migration and fluid diffusion. In this work, a modified solvent casting-particulate leaching out method is presented to produce scaffolds with spherical and interconnected pores. Sugar particles (200-300 microm and 300-500 microm) were poured through a horizontal Meker burner flame and collected below the flame. While crossing the high temperature zone, the particles melted and adopted a spherical shape. Spherical particles were compressed in plastic mold. Then, poly-L-lactic acid solution was cast in the sugar assembly. After solvent evaporation, the sugar was removed by immersing the structure into distilled water for 3 days. The obtained scaffolds presented highly spherical interconnected pores, with interconnection pathways from 10 to 100 mum. Pore interconnection was obtained without any additional step. Compression tests were carried out to evaluate the scaffold mechanical performances. Moreover, rabbit bone marrow mesenchymal stem cells were found to adhere and to proliferate in vitro in the scaffold over 21 days. This technique produced scaffold with highly spherical and interconnected pores without the use of additional organic solvents to leach out the porogen.
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Affiliation(s)
- Cédryck Vaquette
- Group of Cell and Tissue Engineering, LEMTA, Nancy-Université, CNRS, 2 avenue de la forêt de Haye, 54 500 Vandoeuvre, France.
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Kahn CJF, Vaquette C, Rahouadj R, Wang X. A novel bioreactor for ligament tissue engineering. Biomed Mater Eng 2008; 18:283-287. [PMID: 19065035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Bioreactors are defined as devices in which biological and/or biochemical processes develop under closely monitored and tightly controlled environmental and operating conditions (e.g. pH, temperature, mechanical conditions, nutrient supply and waste removal). In functional tissue engineering of musculoskeletal tissues, a bioreactor capable of controlling dynamic loading plays a determinant role. It has been shown that mechanical stretching promotes the expression of type I and III collagens, fibronectin, tenascin-C in cultured ligament fibroblasts (J.C.-H. Goh et al., Tissue Eng. 9 (2003), S31) and that human bone marrow mesenchymal stem cells (hBMMSC) - even in the absence of biochemical regulators - could be induced to differentiate into ligament-like fibroblast by the application of physiologically relevant cyclic strains (G. Vunjak-Novakovic et al., Ann. Rev. Biomed. Eng. 6 (2004), 131; H.A. Awad et al., Tissue Eng. 5 (1999), 267; R.G. Young et al., J. Orthop. Res. 16 (1998), 406). Different bioreactors are commercially available but they are too generic to be used for a given tissue, each tissue showing specific mechanical loading properties. In the case of ligament tissue engineering, the design of a bioreactor is still an open question. Our group proposes a bioreactor allowing cyclic traction-torsion on a scaffold seeded with stem cells.
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Affiliation(s)
- Cyril J F Kahn
- Group Cell and Tissue Engineering, LEMTA-UMR 7563 CNRS, Nancy-University, Vandoeuvre, France
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Affiliation(s)
- Cyril J.F. Kahn
- Group Cell and Tissue Engineering, LEMTA–UMR 7563 CNRS, Nancy-University, Vandoeuvre, France
| | - Cédryck Vaquette
- Group Cell and Tissue Engineering, LEMTA–UMR 7563 CNRS, Nancy-University, Vandoeuvre, France
| | - Rachid Rahouadj
- Group Solid Mechanics, LEMTA–UMR 7563 CNRS, Nancy-University, Vandoeuvre, France
| | - Xiong Wang
- Group Cell and Tissue Engineering, LEMTA–UMR 7563 CNRS, Nancy-University, Vandoeuvre, France
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Kahn C, Wang X, Rahouadj R. Application of a thermodynamic model to mechanical properties of rabbit Achilles tendon. Comput Methods Biomech Biomed Engin 2008. [DOI: 10.1080/10255840802296475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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40
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Vaquette C, Rahouadj R, Wang X. A knitted scaffold for ligament tissue engineering. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)83818-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kahn C, Vaquette C, Slimani S, Rahouadj R, Wang X. Mechanical characterisation of rabbit Achilles tendon for functional tissue engineering. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)83816-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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42
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Mrabet K, Rahouadj R, Cunat C. An irreversible thermodynamic model for semicrystalline polymers submitted to multisequence loading at large strain. POLYM ENG SCI 2004. [DOI: 10.1002/pen.20228] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Khireddine D, Rahouadj R, Clavel M. The influence of δ' and s' precipitation on low cycle fatigue behaviour of an aluminium alloy. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/0001-6160(89)90278-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rahouadj R, Menigault J, Clavel M. Strain rate effects and associated deformation mode in a nickel-based alloy during low cycle fatigue testing. ACTA ACUST UNITED AC 1987. [DOI: 10.1016/0025-5416(87)90423-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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