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Stehle M, Amini M, Venkatesan JK, Liu W, Wang D, Nguyen TN, Leroux A, Madry H, Migonney V, Cucchiarini M. Commitment of human mesenchymal stromal cells towards ACL fibroblast differentiation upon rAAV-mediated FGF-2 and TGF-β overexpression using pNaSS-grafted PCL films. Biotechnol Bioeng 2024. [PMID: 38877726 DOI: 10.1002/bit.28773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/29/2024] [Accepted: 05/28/2024] [Indexed: 06/16/2024]
Abstract
Despite various clinical options, human anterior cruciate ligament (ACL) lesions do not fully heal. Biomaterial-guided gene therapy using recombinant adeno-associated virus (rAAV) vectors may improve the intrinsic mechanisms of ACL repair. Here, we examined whether poly(sodium styrene sulfonate)-grafted poly(ε-caprolactone) (pNaSS-grafted PCL) films can deliver rAAV vectors coding for the reparative basic fibroblast growth factor (FGF-2) and transforming growth factor beta (TGF-β) in human mesenchymal stromal cells (hMSCs) as a source of implantable cells in ACL lesions. Efficient and sustained rAAV-mediated reporter (red fluorescent protein) and therapeutic (FGF-2 and TGF-β) gene overexpression was achieved in the cells for at least 21 days in particular with pNaSS-grafted PCL films relative to all other conditions (up to 5.2-fold difference). Expression of FGF-2 and TGF-β mediated by rAAV using PCL films increased the levels of cell proliferation, the DNA contents, and the deposition of proteoglycans and of type-I and -III collagen (up to 2.9-fold difference) over time in the cells with higher levels of transcription factor expression (Mohawk, Scleraxis) (up to 1.9-fold difference), without activation of inflammatory tumor necrosis alpha especially when using pNaSS-grafted PCL films compared with the controls. Overall, the effects mediated by TGF-β were higher than those promoted by FGF-2, possibly due to higher levels of gene expression achieved upon rAAV gene transfer. This study shows the potential of using functionalized PCL films to apply rAAV vectors for ACL repair.
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Affiliation(s)
- Meret Stehle
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Mahnaz Amini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Jagadeesh K Venkatesan
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Wei Liu
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Dan Wang
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Tuan N Nguyen
- LBPS/CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, Villetaneuse, France
| | - Amélie Leroux
- LBPS/CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, Villetaneuse, France
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Saarland, Germany
| | - Véronique Migonney
- LBPS/CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, Villetaneuse, France
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg, Saarland, Germany
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Amini M, Venkatesan JK, Nguyen TN, Liu W, Leroux A, Madry H, Migonney V, Cucchiarini M. rAAV TGF-β and FGF-2 Overexpression via pNaSS-Grafted PCL Films Stimulates the Reparative Activities of Human ACL Fibroblasts. Int J Mol Sci 2023; 24:11140. [PMID: 37446318 DOI: 10.3390/ijms241311140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/03/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Lesions in the human anterior cruciate ligament (ACL) are frequent, unsolved clinical issues due to the limited self-healing ability of the ACL and lack of treatments supporting full, durable ACL repair. Gene therapy guided through the use of biomaterials may steadily activate the processes of repair in sites of ACL injury. The goal of the present study was to test the hypothesis that functionalized poly(sodium styrene sulfonate)-grafted poly(ε-caprolactone) (pNaSS-grafted PCL) films can effectively deliver recombinant adeno-associated virus (rAAV) vectors as a means of overexpressing two reparative factors (transforming growth factor beta-TGF-β and basic fibroblast growth factor-FGF-2) in primary human ACL fibroblasts. Effective, durable rAAV reporter red fluorescent protein and candidate TGF-β and FGF-2 gene overexpression was achieved in the cells for at least 21 days, especially when pNaSS-grafted PCL films were used versus control conditions, such as ungrafted films and systems lacking vectors or films (between 1.8- and 5.2-fold differences), showing interactive regulation of growth factor production. The expression of TGF-β and FGF-2 from rAAV via PCL films safely enhanced extracellular matrix depositions of type-I/-III collagen, proteoglycans/decorin, and tenascin-C (between 1.4- and 4.5-fold differences) in the cells over time with increased levels of expression of the specific transcription factors Mohawk and scleraxis (between 1.7- and 3.7-fold differences) and without the activation of the inflammatory mediators IL-1β and TNF-α, most particularly with pNaSS-grafted PCL films relative to the controls. This work shows the value of combining rAAV gene therapy with functionalized PCL films to enhance ACL repair.
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Affiliation(s)
- Mahnaz Amini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, 66421 Homburg, Germany
| | - Jagadeesh K Venkatesan
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, 66421 Homburg, Germany
| | - Tuan N Nguyen
- LBPS/CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, 93430 Villetaneuse, France
| | - Wei Liu
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, 66421 Homburg, Germany
| | - Amélie Leroux
- LBPS/CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, 93430 Villetaneuse, France
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, 66421 Homburg, Germany
| | - Véronique Migonney
- LBPS/CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, 93430 Villetaneuse, France
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, 66421 Homburg, Germany
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Amini M, Venkatesan JK, Liu W, Leroux A, Nguyen TN, Madry H, Migonney V, Cucchiarini M. Advanced Gene Therapy Strategies for the Repair of ACL Injuries. Int J Mol Sci 2022; 23:ijms232214467. [PMID: 36430947 PMCID: PMC9695211 DOI: 10.3390/ijms232214467] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/07/2022] [Accepted: 11/19/2022] [Indexed: 11/23/2022] Open
Abstract
The anterior cruciate ligament (ACL), the principal ligament for stabilization of the knee, is highly predisposed to injury in the human population. As a result of its poor intrinsic healing capacities, surgical intervention is generally necessary to repair ACL lesions, yet the outcomes are never fully satisfactory in terms of long-lasting, complete, and safe repair. Gene therapy, based on the transfer of therapeutic genetic sequences via a gene vector, is a potent tool to durably and adeptly enhance the processes of ACL repair and has been reported for its workability in various experimental models relevant to ACL injuries in vitro, in situ, and in vivo. As critical hurdles to the effective and safe translation of gene therapy for clinical applications still remain, including physiological barriers and host immune responses, biomaterial-guided gene therapy inspired by drug delivery systems has been further developed to protect and improve the classical procedures of gene transfer in the future treatment of ACL injuries in patients, as critically presented here.
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Affiliation(s)
- Mahnaz Amini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg, Germany
| | - Jagadeesh K. Venkatesan
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg, Germany
| | - Wei Liu
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg, Germany
| | - Amélie Leroux
- Laboratoire CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, Avenue JB Clément, 93430 Villetaneuse, France
| | - Tuan Ngoc Nguyen
- Laboratoire CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, Avenue JB Clément, 93430 Villetaneuse, France
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg, Germany
| | - Véronique Migonney
- Laboratoire CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, Avenue JB Clément, 93430 Villetaneuse, France
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Kirrbergerstr. Bldg 37, D-66421 Homburg, Germany
- Correspondence: or
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Dokuchaeva AA, Timchenko TP, Karpova EV, Vladimirov SV, Soynov IA, Zhuravleva IY. Effects of Electrospinning Parameter Adjustment on the Mechanical Behavior of Poly-ε-caprolactone Vascular Scaffolds. Polymers (Basel) 2022; 14:polym14020349. [PMID: 35054754 PMCID: PMC8780554 DOI: 10.3390/polym14020349] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/06/2022] [Accepted: 01/11/2022] [Indexed: 11/16/2022] Open
Abstract
Electrospinning is a perspective method widely suggested for use in bioengineering applications, but the variability in currently available data and equipment necessitates additional research to ascertain the desirable methodology. In this study, we aimed to describe the effects of electrospinning technique alterations on the structural and mechanical properties of (1,7)-polyoxepan-2-one (poly-ε-caprolactone, PCL) scaffolds, such as circumferential and longitudinal stress/strain curves, in comparison with corresponding properties of fresh rat aorta samples. Scaffolds manufactured under different electrospinning modes were analyzed and evaluated using scanning electronic microscopy as well as uniaxial longitudinal and circumferential tensile tests. Fiber diameter was shown to be the most crucial characteristic of the scaffold, correlating with its mechanical properties.
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Affiliation(s)
- Anna A. Dokuchaeva
- Institute of Experimental Biology and Medicine, E. Meshalkin National Medical Research Center of the RF Ministry of Health, 15 Rechkunovskaya St., Novosibirsk 630055, Russia; (T.P.T.); (S.V.V.); (I.A.S.); (I.Y.Z.)
- Correspondence: ; Tel.: +7-383-347-60-47
| | - Tatyana P. Timchenko
- Institute of Experimental Biology and Medicine, E. Meshalkin National Medical Research Center of the RF Ministry of Health, 15 Rechkunovskaya St., Novosibirsk 630055, Russia; (T.P.T.); (S.V.V.); (I.A.S.); (I.Y.Z.)
| | - Elena V. Karpova
- Center of Spectral Investigations, Group of Optical Spectrometry, N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Avenue, Novosibirsk 630090, Russia;
| | - Sergei V. Vladimirov
- Institute of Experimental Biology and Medicine, E. Meshalkin National Medical Research Center of the RF Ministry of Health, 15 Rechkunovskaya St., Novosibirsk 630055, Russia; (T.P.T.); (S.V.V.); (I.A.S.); (I.Y.Z.)
| | - Ilya A. Soynov
- Institute of Experimental Biology and Medicine, E. Meshalkin National Medical Research Center of the RF Ministry of Health, 15 Rechkunovskaya St., Novosibirsk 630055, Russia; (T.P.T.); (S.V.V.); (I.A.S.); (I.Y.Z.)
| | - Irina Y. Zhuravleva
- Institute of Experimental Biology and Medicine, E. Meshalkin National Medical Research Center of the RF Ministry of Health, 15 Rechkunovskaya St., Novosibirsk 630055, Russia; (T.P.T.); (S.V.V.); (I.A.S.); (I.Y.Z.)
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Venkatesan JK, Cai X, Meng W, Rey-Rico A, Schmitt G, Speicher-Mentges S, Falentin-Daudré C, Leroux A, Madry H, Migonney V, Cucchiarini M. pNaSS-Grafted PCL Film-Guided rAAV TGF-β Gene Therapy Activates the Chondrogenic Activities in Human Bone Marrow Aspirates. Hum Gene Ther 2021; 32:895-906. [PMID: 33573471 DOI: 10.1089/hum.2020.329] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Scaffold-guided viral gene therapy is a novel, powerful tool to enhance the processes of tissue repair in articular cartilage lesions by the delivery and overexpression of therapeutic genes in a noninvasive, controlled release manner based on a procedure that may protect the gene vehicles from undesirable host immune responses. In this study, we examined the potential of transferring a recombinant adeno-associated virus (rAAV) vector carrying a sequence for the highly chondroregenerative transforming growth factor beta (TGF-β), using poly(ɛ-caprolactone) (PCL) films functionalized by the grafting of poly(sodium styrene sulfonate) (pNaSS) in chondrogenically competent bone marrow aspirates as future targets for therapy in cartilage lesions. Effective overexpression of TGF-β in the aspirates by rAAV was achieved upon delivery using pNaSS-grafted and ungrafted PCL films for up to 21 days (the longest time point evaluated), with superior levels using the grafted films, compared with respective conditions without vector coating. The production of rAAV-mediated TGF-β by pNaSS-grafted and ungrafted PCL films significantly triggered the biological activities and chondrogenic processes in the samples (proteoglycan and type-II collagen deposition and cell proliferation), while containing premature mineralization and hypertrophy relative to the other conditions, with overall superior effects supported by the pNaSS-grafted films. These observations demonstrate the potential of PCL film-assisted rAAV TGF-β gene transfer as a convenient, off-the-shelf technique to enhance the reparative potential of the bone marrow in patients in future approaches for improved cartilage repair.
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Affiliation(s)
- Jagadeesh K Venkatesan
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany
| | - Xiaoyu Cai
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany
| | - Weikun Meng
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany
| | - Ana Rey-Rico
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany
| | - Gertrud Schmitt
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany
| | | | | | - Amélie Leroux
- LBPS/CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, Villetaneuse, France
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany.,Department of Orthopaedic Surgery, Saarland University Medical Center, Homburg/Saar, Germany
| | - Véronique Migonney
- LBPS/CSPBAT UMR CNRS 7244, Université Sorbonne Paris Nord, Villetaneuse, France
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany
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Lam M, Migonney V, Falentin-Daudre C. Review of silicone surface modification techniques and coatings for antibacterial/antimicrobial applications to improve breast implant surfaces. Acta Biomater 2021; 121:68-88. [PMID: 33212233 DOI: 10.1016/j.actbio.2020.11.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/12/2020] [Accepted: 11/12/2020] [Indexed: 12/19/2022]
Abstract
Silicone implants are widely used in the medical field for plastic or reconstructive surgeries for the purpose of soft tissue issues. However, as with any implanted object, healthcare-associated infections are not completely avoidable. The material suffers from a lack of biocompatibility and is often subject to bacterial/microbial infections characterized by biofilm growth. Numerous strategies have been developed to either prevent, reduce, or fight bacterial adhesion by providing an antibacterial property. The present review summarizes the diverse approaches to deal with bacterial infections on silicone surfaces along with the different methods to activate/oxidize the surface before any surface modifications. It includes antibacterial coatings with antibiotics or nanoparticles, covalent attachment of active bacterial molecules like peptides or polymers. Regarding silicone surfaces, the activation step is essential to render the surface reactive for any further modifications using energy sources (plasma, UV, ozone) or chemicals (acid solutions, sol-gel strategies, chemical vapor deposition). Meanwhile, corresponding work on breast silicone prosthesis is discussed. The latter is currently in the line of sight for causing severe capsular contractures. Specifically, to that end, besides chemical modifications, the antibacterial effect can also be achieved by physical surface modifications by adjusting the surface roughness and topography for instance.
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Long-term hydrolytic degradation study of polycaprolactone films and fibers grafted with poly(sodium styrene sulfonate): Mechanism study and cell response. Biointerphases 2020; 15:061006. [PMID: 33203213 DOI: 10.1116/6.0000429] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Polycaprolactone (PCL) is a widely used biodegradable polyester for tissue engineering applications when long-term degradation is preferred. In this article, we focused on the analysis of the hydrolytic degradation of virgin and bioactive poly(sodium styrene sulfonate) (pNaSS) functionalized PCL surfaces under simulated physiological conditions (phosphate buffer saline at 25 and 37 °C) for up to 120 weeks with the aim of applying bioactive PCL for ligament tissue engineering. Techniques used to characterize the bulk and surface degradation indicated that PCL was hydrolyzed by a bulk degradation mode with an accelerated degradation-three times increased rate constant-for pNaSS grafted PCL at 37 °C when compared to virgin PCL at 25 °C. The observed degradation mechanism is due to the pNaSS grafting process (oxidation and radical polymerization), which accelerated the degradation until 48 weeks, when a steady state is reached. The PCL surface was altered by pNaSS grafting, introducing hydrophilic sulfonate groups that increase the swelling and smoothing of the surface, which facilitated the degradation. After 48 weeks, pNaSS was largely removed from the surface, and the degradation of virgin and pNaSS grafted surfaces was similar. The cell response of primary fibroblast cells from sheep ligament was consistent with the surface analysis results: a better initial spreading of cells on pNaSS surfaces when compared to virgin surfaces and a tendency to become similar with degradation time. It is worthy to note that during the extended degradation process the surfaces were able to continue inducing better cell spreading and preserve their cell phenotype as shown by collagen gene expressions.
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Rangel A, Colaço L, Nguyen N, Grosset JF, Egles C, Migonney V. Adapting Mechanical Characterization of a Biodegradable Polymer to Physiological Approach of Anterior Cruciate Ligament Functions. Ing Rech Biomed 2020. [DOI: 10.1016/j.irbm.2020.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Jiao Y, Li C, Liu L, Wang F, Liu X, Mao J, Wang L. Construction and application of textile-based tissue engineering scaffolds: a review. Biomater Sci 2020; 8:3574-3600. [PMID: 32555780 DOI: 10.1039/d0bm00157k] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tissue engineering (TE) provides a practicable method for tissue and organ repair or substitution. As the most important component of TE, a scaffold plays a critical role in providing a growing environment for cell proliferation and functional differentiation as well as good mechanical support. And the restorative effects are greatly dependent upon the nature of the scaffold including the composition, morphology, structure, and mechanical performance. Medical textiles have been widely employed in the clinic for a long time and are being extensively investigated as TE scaffolds. However, unfortunately, the advantages of textile technology cannot be fully exploited in tissue regeneration due to the ignoring of the diversity of fabric structures. Therefore, this review focuses on textile-based scaffolds, emphasizing the significance of the fabric design and the resultant characteristics of cell behavior and extracellular matrix reconstruction. The structure and mechanical behavior of the fabrics constructed by various textile techniques for different tissue repairs are summarized. Furthermore, the prospect of structural design in the TE scaffold preparation was anticipated, including profiled fibers and some unique and complex textile structures. Hopefully, the readers of this review would appreciate the importance of structural design of the scaffold and the usefulness of textile-based TE scaffolds in tissue regeneration.
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Affiliation(s)
- Yongjie Jiao
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, Shanghai 201620, China.
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Ionescu AM, Chato-Astrain J, Cardona JDLC, Campos F, Pérez MM, Alaminos M, Garzón I. Evaluation of the optical and biomechanical properties of bioengineered human skin generated with fibrin-agarose biomaterials. JOURNAL OF BIOMEDICAL OPTICS 2020; 25:1-16. [PMID: 32383372 PMCID: PMC7203517 DOI: 10.1117/1.jbo.25.5.055002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 04/24/2020] [Indexed: 05/21/2023]
Abstract
SIGNIFICANCE Recent generation of bioengineered human skin allowed the efficient treatment of patients with severe skin defects. However, the optical and biomechanical properties of these models are not known. AIM Three models of bioengineered human skin based on fibrin-agarose biomaterials (acellular, dermal skin substitutes, and complete dermoepidermal skin substitutes) were generated and analyzed. APPROACH Optical and biomechanical properties of these artificial human skin substitutes were investigated using the inverse adding-doubling method and tensile tests, respectively. RESULTS The analysis of the optical properties revealed that the model that most resembled the optical behavior of the native human skin in terms of absorption and scattering properties was the dermoepidermal human skin substitutes after 7 to 14 days in culture. The time-course evaluation of the biomechanical parameters showed that the dermoepidermal substitutes displayed significant higher values than acellular and dermal skin substitutes for all parameters analyzed and did not differ from the control skin for traction deformation, stress, and strain at fracture break. CONCLUSIONS We demonstrate the crucial role of the cells from a physical point of view, confirming that a bioengineered dermoepidermal human skin substitute based on fibrin-agarose biomaterials is able to fulfill the minimal requirements for skin transplants for future clinical use at early stages of in vitro development.
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Affiliation(s)
- Ana Maria Ionescu
- University of Granada, Laboratory of Biomaterials Optics, Department of Optics, Faculty of Sciences, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Jesus Chato-Astrain
- University of Granada, Department of Histology, Faculty of Medicine, Tissue Engineering Group, Granada, Spain
| | - Juan de la Cruz Cardona
- University of Granada, Laboratory of Biomaterials Optics, Department of Optics, Faculty of Sciences, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Fernando Campos
- University of Granada, Department of Histology, Faculty of Medicine, Tissue Engineering Group, Granada, Spain
| | - Maria M. Pérez
- University of Granada, Laboratory of Biomaterials Optics, Department of Optics, Faculty of Sciences, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Miguel Alaminos
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- University of Granada, Department of Histology, Faculty of Medicine, Tissue Engineering Group, Granada, Spain
| | - Ingrid Garzón
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- University of Granada, Department of Histology, Faculty of Medicine, Tissue Engineering Group, Granada, Spain
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Lam M, Moris V, Humblot V, Migonney V, Falentin-Daudre C. A simple way to graft a bioactive polymer – Polystyrene sodium sulfonate on silicone surfaces. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109608] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Amokrane G, Humblot V, Jubeli E, Yagoubi N, Ramtani S, Migonney V, Falentin-Daudré C. Electrospun Poly(ε-caprolactone) Fiber Scaffolds Functionalized by the Covalent Grafting of a Bioactive Polymer: Surface Characterization and Influence on in Vitro Biological Response. ACS OMEGA 2019; 4:17194-17208. [PMID: 31656893 PMCID: PMC6811844 DOI: 10.1021/acsomega.9b01647] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/19/2019] [Indexed: 05/10/2023]
Abstract
The purpose of this study is to present the poly(caprolactone) (PCL) functionalization by the covalent grafting of poly(sodium styrene sulfonate) on electrospun scaffolds using the "grafting from" technique and evaluate the effect of the coating and surface wettability on the biological response. The "grafting from" technique required energy (thermal or UV) to induce the decomposition of the PCL (hydro)peroxides and generate radicals able to initiate the polymerization of NaSS. In addition, UV irradiation was used to initiate the radical polymerization of NaSS directly from the surface (UV direct "grafting from"). The interest of these two techniques is their easiness, the reduction of the number of process steps, and its applicability to the industry. The selected parameters allow controlling the grafting rate (i.e., degree of functionalization). The aim of the study was to compare two covalent grafting in terms of surface functionalization and hydrophilicity and their effect on the in vitro biological responses of fibroblasts. The achieved results showed the influence of the sulfonate functional groups on the cell response. In addition, outcomes highlighted that the UV direct "grafting from" method allows to moderate the amount of sulfonate groups and the surface hydrophilicity presents a considerable interest for covalently immobilizing bioactive polymers onto electrospun scaffolds designed for tissue engineering applications using efficient post-electrospinning chemical modification.
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Affiliation(s)
- Gana Amokrane
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
| | - Vincent Humblot
- Sorbonne Université, Caboratoire
de Réactivité de Surface, UMR CNRS 7197, 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Emile Jubeli
- Laboratoire Matériaux et Santé EA 401,
UFR de Pharmacie, Université Paris-Sud, 92290 Châtenay-Malabry, France
| | - Najet Yagoubi
- Laboratoire Matériaux et Santé EA 401,
UFR de Pharmacie, Université Paris-Sud, 92290 Châtenay-Malabry, France
| | - Salah Ramtani
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
| | - Véronique Migonney
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
| | - Céline Falentin-Daudré
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
- E-mail:
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Analysis of early cellular responses of anterior cruciate ligament fibroblasts seeded on different molecular weight polycaprolactone films functionalized by a bioactive poly(sodium styrene sulfonate) polymer. Biointerphases 2019; 14:041004. [PMID: 31405286 DOI: 10.1116/1.5102150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
With the growing number of anterior cruciate ligament (ACL) ruptures and the increased interest for regenerative medicine procedures, many studies are now concentrated on developing bioactive and biodegradable synthetic ligaments. For this application, the choice of raw materials with appropriate physicochemical characteristics and long-term degradation features is essential. Polycaprolactone (PCL) has the advantage of slow degradation that depends on its molecular weight. This study evaluates two PCL materials: a technical grade (PC60: 60 kDa) versus a medical grade (PC12: 80 kDa), both before and after functionalization with poly(sodium styrene sulfonate) (pNaSS). After determining the grafting process had little to no effect on the PCL physicochemical properties, sheep ACL fibroblast responses were investigated. The PC12 films induced a significantly lower expression of the tumor necrosis factor alpha inflammatory gene compared to the PC60 films. Both film types induced an overproduction of fibroblast growth factor-2 and transforming growth factor beta compared to the controls on day 5 and demonstrated collagen gene expression profiles similar to the controls on day 7. Upon protein adsorption, pNaSS grafting caused a rapid cell adhesion in the first 30 min and an increased adhesion strength (1.5-fold higher). Moreover, after 7 days, an increase in cell density and actin network development were noted on the grafted films.
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van Zyl EM, Coburn JM. Hierarchical structure of bacterial-derived cellulose and its impact on biomedical applications. Curr Opin Chem Eng 2019. [DOI: 10.1016/j.coche.2019.04.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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