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Dabasinskaite L, Krugly E, Baniukaitiene O, Ciuzas D, Martuzevicius D, Jankauskaite L, Malinauskas M, Usas A. Design and Fabrication Method of Bi-Layered Fibrous Scaffold for Cartilage Regeneration. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108413] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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2
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Bravi Costantino ML, Belluzo MS, Oberti TG, Cortizo AM, Cortizo MS. Terpolymer-chitosan membranes as biomaterial. J Biomed Mater Res A 2021; 110:383-393. [PMID: 34397166 DOI: 10.1002/jbm.a.37295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 07/29/2021] [Accepted: 08/03/2021] [Indexed: 11/09/2022]
Abstract
The present study shows a novel copolymer synthesis, its application in the membrane design and the physicochemical and biological characterization of the biomaterial obtained. Terpolymer starting diisopropyl fumarate (F), vinyl benzoate (V) and 2-hydroxyethyl methacrylate (H) was prepared by thermal radical polymerization. This polymer (FVH) was obtained in several monomer ratios and characterized by spectroscopic and chromatographic methods (FTIR, 1 H-NMR and SEC). The best relationship of F:V:H was 5:4:1, which allows efficient interaction with chitosan through cross-linking with borax to achieve scaffolds for potential biomedical applications. The membranes were obtained by solvent casting and analyzed by scanning electron microscopy (SEM), swelling behavior and mechanical properties. In addition, we studied the possible cytotoxicity and biocompatibility of these materials using a murine macrophage-like cell line (RAW 264.7) and bone marrow mesenchymal progenitor cells (BMPC), respectively, taking into account their intended applications. The results of this study show that the terpolymer obtained and its combination with a natural polymer is a very interesting strategy to obtain a biomaterial with possible applications in regenerative medicine and this could be extended to other structurally related systems.
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Affiliation(s)
- María Leticia Bravi Costantino
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP-CONICET, La Plata, Argentina.,Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, UNLP-CIC, La Plata, Argentina
| | - María Soledad Belluzo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP-CONICET, La Plata, Argentina
| | - Tamara G Oberti
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP-CONICET, La Plata, Argentina
| | - Ana M Cortizo
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, UNLP-CIC, La Plata, Argentina
| | - María Susana Cortizo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP-CONICET, La Plata, Argentina
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3
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Bravi Costantino ML, Oberti TG, Cortizo AM, Cortizo MS. Thermoresponsive behavior of scaffolds based on fumarate- N-isopropylacrylamide copolymers for potential biomedical applications. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1931206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- M. Leticia Bravi Costantino
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La Plata – CONICET CCT-La Plata, C.C., La Plata, Argentina
| | - Tamara G. Oberti
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La Plata – CONICET CCT-La Plata, C.C., La Plata, Argentina
| | - Ana M. Cortizo
- Departamento de Cs. Biológicas, Facultad de Cs. Exactas, Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), UNLP, La Plata, Argentina
| | - M. Susana Cortizo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La Plata – CONICET CCT-La Plata, C.C., La Plata, Argentina
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4
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Sumayya AS, Muraleedhara Kurup G. In vitro anti-inflammatory potential of marine macromolecules cross-linked bio-composite scaffold on LPS stimulated RAW 264.7 macrophage cells for cartilage tissue engineering applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:1040-1056. [PMID: 33682617 DOI: 10.1080/09205063.2021.1899590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Biomaterials serve as an integral component of tissue engineering. They are designed to provide architectural framework of native extracellular matrix so as to encourage cell growth and eventual tissue regeneration. Naturally occurring biopolymers as scaffolds offer options for cartilage tissue engineering due to anti-inflammatory, biocompatibility, biodegradability, low toxicity of degradation by-products and plasticity in processing into a variety of material formats. Here we studied in vitro anti-inflammatory potential of marine macromolecules cross-linked bio-composite scaffold composed of hydroxyapatite, alginate, chitosan and fucoidan named as HACF on LPS stimulated RAW 264.7 macrophage cells. The effects of HACF on the viability of RAW264.7 cells, nitrite level, intracellular ROS as well as the mRNA levels of NF-κB, iNOS, COX-2, TNF-α, IL-1β and IL-6 were examined in LPS induced RAW264.7 macrophage cells. The results revealed that HACF hydrogel scaffold exerts anti-inflammatory effect by inhibiting the production of ROS, suppress NF-kB translocation to the nucleus and thereby inhibiting the production of inflammatory mediators. Hence, our results confirm that HACF has a strong anti-oxidant capacity to inhibit inflammation associated gene expression by suppressing NF-kB signaling pathway. It clearly reveals the anti-oxidant and anti-inflammatory effect of HACF hydrogel scaffold on LPS induced RAW 264.7 cells.
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Affiliation(s)
- A S Sumayya
- Faculty, Department of Biochemistry, T.K.M. College of Arts and Science, Kollam, India
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5
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Belluzo MS, Medina LF, Molinuevo MS, Cortizo MS, Cortizo AM. Nanobiocomposite based on natural polyelectrolytes for bone regeneration. J Biomed Mater Res A 2020; 108:1467-1478. [PMID: 32170892 DOI: 10.1002/jbm.a.36917] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/28/2020] [Accepted: 03/09/2020] [Indexed: 01/10/2023]
Abstract
We developed a composite hydrogel based on chitosan and carboxymethyl cellulose with nanometric hydroxyapatite (nHA) as filler (ranging from 0.5 to 5%), by ultrasonic methodology to be used for bone regeneration. The 3D porous-structure of the biocomposite scaffolds were confirmed by Scanning Electron Microscopy and Microtomography analysis. Infrared analysis did not show specific interactions between the organic components of the composite and nHA in the scaffold. The hydrogel properties of the matrices were studied by swelling and mechanical tests, indicating that the scaffold presented a good mechanical behavior. The degradation test demonstrated that the material is slowly degraded, while the addition of nHA slightly influences the degradation of the scaffolds. Biocompatibility studies carried out with bone marrow mesenchymal progenitor cells (BMPC) showed that cell proliferation and alkaline phosphatase activity were increased depending on the matrix nHA content. On the other hand, no cytotoxic effect was observed when RAW264.7 cells were seeded on the scaffolds. Altogether, our results allow us to conclude that these nanobiocomposites are promising candidates to induce bone tissue regeneration.
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Affiliation(s)
- M Soledad Belluzo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata, CC 16 Suc. 4, CONICET, CCT-La Plata, La Plata, Argentina
| | - Lara F Medina
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata, CC 16 Suc. 4, CONICET, CCT-La Plata, La Plata, Argentina.,LIOMM (Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, UNLP, La Plata, Argentina
| | - M Silvina Molinuevo
- LIOMM (Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, UNLP, La Plata, Argentina
| | - M Susana Cortizo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata, CC 16 Suc. 4, CONICET, CCT-La Plata, La Plata, Argentina
| | - Ana M Cortizo
- LIOMM (Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, UNLP, La Plata, Argentina
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6
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Bravi Costantino ML, Cortizo MS, Cortizo AM, Oberti TG. Osteogenic scaffolds based on fumaric/N-isopropylacrylamide copolymers: Designed, properties and biocompatibility studies. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109348] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Zurriaga Carda J, Lastra ML, Antolinos-Turpin CM, Morales-Román RM, Sancho-Tello M, Perea-Ruiz S, Milián L, Fernández JM, Cortizo AM, Carda C, Gallego-Ferrer G, Gómez Ribelles JL. A cell-free approach with a supporting biomaterial in the form of dispersed microspheres induces hyaline cartilage formation in a rabbit knee model. J Biomed Mater Res B Appl Biomater 2019; 108:1428-1438. [PMID: 31520507 DOI: 10.1002/jbm.b.34490] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 07/29/2019] [Accepted: 08/17/2019] [Indexed: 12/21/2022]
Abstract
The objective of this study was to test a regenerative medicine strategy for the regeneration of articular cartilage. This approach combines microfracture of the subchondral bone with the implant at the site of the cartilage defect of a supporting biomaterial in the form of microspheres aimed at creating an adequate biomechanical environment for the differentiation of the mesenchymal stem cells that migrate from the bone marrow. The possible inflammatory response to these biomaterials was previously studied by means of the culture of RAW264.7 macrophages. The microspheres were implanted in a 3 mm-diameter defect in the trochlea of the femoral condyle of New Zealand rabbits, covering them with a poly(l-lactic acid) (PLLA) membrane manufactured by electrospinning. Experimental groups included a group where exclusively PLLA microspheres were implanted, another group where a mixture of 50/50 microspheres of PLLA (hydrophobic and rigid) and others of chitosan (a hydrogel) were used, and a third group used as a control where no material was used and only the membrane was covering the defect. The histological characteristics of the regenerated tissue have been evaluated 3 months after the operation. We found that during the regeneration process the microspheres, and the membrane covering them, are displaced by the neoformed tissue in the regeneration space toward the subchondral bone region, leaving room for the formation of a tissue with the characteristics of hyaline cartilage.
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Affiliation(s)
- Javier Zurriaga Carda
- Departamento de Patología, Facultad de Medicina y Odontología, Universitat de València, Valencia, Spain.,IMED (Innovación MÉDica), Hospital IMED, Valencia, Spain
| | - Maria L Lastra
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata 47 y 115 (1900), La Plata, Argentina
| | - Carmen M Antolinos-Turpin
- Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
| | - Rosa M Morales-Román
- Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
| | - María Sancho-Tello
- Departamento de Patología, Facultad de Medicina y Odontología, Universitat de València, Valencia, Spain.,INCLIVA Biomedical Research Institute, Valencia, Spain
| | - Sofía Perea-Ruiz
- Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
| | - Lara Milián
- Departamento de Patología, Facultad de Medicina y Odontología, Universitat de València, Valencia, Spain.,INCLIVA Biomedical Research Institute, Valencia, Spain
| | - Juan M Fernández
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata 47 y 115 (1900), La Plata, Argentina
| | - Ana M Cortizo
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata 47 y 115 (1900), La Plata, Argentina
| | - Carmen Carda
- Departamento de Patología, Facultad de Medicina y Odontología, Universitat de València, Valencia, Spain.,INCLIVA Biomedical Research Institute, Valencia, Spain.,Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
| | - Gloria Gallego-Ferrer
- Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain.,Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
| | - José L Gómez Ribelles
- Center for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain.,Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
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8
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Torres M, Fernandez J, Dellatorre F, Cortizo A, Oberti T. Purification of alginate improves its biocompatibility and eliminates cytotoxicity in matrix for bone tissue engineering. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101499] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Lino AB, McCarthy AD, Fernández JM. Evaluation of Strontium-Containing PCL-PDIPF Scaffolds for Bone Tissue Engineering: In Vitro and In Vivo Studies. Ann Biomed Eng 2018; 47:902-912. [PMID: 30560305 DOI: 10.1007/s10439-018-02183-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 12/04/2018] [Indexed: 12/19/2022]
Abstract
Bone tissue engineering (BTE) has the general objective of restoring and improving damaged bone. A very interesting strategy for BTE is to combine an adequate polymeric scaffold with an osteoinductive compound. Strontium is a divalent cation that can substitute calcium in hydroxyapatite and induce both anabolic and anti-catabolic effects in bone. On the other hand, systemic increases in Sr2+ levels can provoke adverse cardiovascular effects. In the present study we have developed a compatibilized blend of poly-ε-caprolactone (PCL) and polydiisopropyl fumarate (PDIPF) enriched with 1% or 5% Sr2+ and evaluated the applicability of these biomaterials for BTE, both in vitro and in vivo. In vitro, whereas Blend + 5% Sr2+ was pro-inflammatory and anti-osteogenic, Blend + 1% Sr2+ released very low quantities of the cation; was not cytotoxic for cultured macrophages; and showed improved osteocompatibility when used as a substratum for primary cultures of bone marrow stromal cells. In vivo, implants with Blend + 1% Sr2+ significantly increased bone tissue regeneration and improved fibrous bridging (vs. Blend alone), while neither inducing a local inflammatory response nor increased serum levels of Sr2+. These results indicate that our compatibilized blend of PCL-PDIPF enriched with 1% Sr2+ could be useful for BTE.
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Affiliation(s)
- Agustina Berenice Lino
- LIOMM (Laboratorio de Investigación en Osteopatías y Metabolismo Mineral) - Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calle 47 y 115 (1900), La Plata, Argentina
| | - Antonio Desmond McCarthy
- LIOMM (Laboratorio de Investigación en Osteopatías y Metabolismo Mineral) - Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calle 47 y 115 (1900), La Plata, Argentina
| | - Juan Manuel Fernández
- LIOMM (Laboratorio de Investigación en Osteopatías y Metabolismo Mineral) - Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calle 47 y 115 (1900), La Plata, Argentina. .,Cátedra Bioquímica Patológica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calle 47 y 115 (1900), La Plata, Argentina.
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10
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Radhakrishnan A, Sreekumaran S, Nair JA, Kurup MG. Immunocompatibility of poly(ethylene glycol)-penetrated alginate–chitosan hydrogels. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2018. [DOI: 10.1680/jbibn.18.00023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Scaffold-guided tissue regeneration using hydrogels has been emerging as an ideal alternative for the management of terminal-stage organ damage. Design of scaffolds for tissue regrowth mainly focuses on their immuno/biocompatibility as well as physiochemical characteristics. The focus of this study is on the biocompatibility evaluations of a panel of four hydrogel scaffolds fabricated using alginate, chitosan and hydroxyapatite reinforced with poly(ethylene glycol). The hydrogels were subsequently cross-linked with calcium ions and glutaraldehyde. Immunocompatibility was assessed by interacting Raw 264.7 cell lines with these hydrogels. MTT cell viability assay revealed the non-cytotoxic nature of the hydrogels, and the macrophages grown in contact with the hydrogels exhibited no alteration in their morphology and were similar to the untreated normal cells. The concentration of nitric oxide, activity of myeloperoxidase and the messenger ribonucleic acid transcripts of proinflammatory cytokines, interleukin 6 and tumour necrosis factor alpha exhibited no considerable increase in the macrophages cultured with the hydrogels when compared to lipopolysaccharide-stimulated cells. In short, the absence of macrophage activation on contact with hydrogels is a clear indication of their in vitro immunocompatibility, suggesting their potential application as tissue engineering templates.
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Affiliation(s)
- Anitha Radhakrishnan
- Department of Biochemistry, University of Kerala, Thiruvananthapuram, Kerala, India
| | | | - Jayakumaran A Nair
- Inter University Centre for Genomics and Gene Technology, University of Kerala, Thiruvananthapuram, Kerala, India
| | - Muraleedhara G Kurup
- Department of Biochemistry, University of Kerala, Thiruvananthapuram, Kerala, India
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Bravi Costantino ML, Oberti TG, Cortizo AM, Cortizo MS. Matrices based on lineal and star fumarate-metha/acrylate copolymers for bone tissue engineering: Characterization and biocompatibility studies. J Biomed Mater Res A 2018; 107:195-203. [DOI: 10.1002/jbm.a.36554] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/18/2018] [Accepted: 09/18/2018] [Indexed: 11/09/2022]
Affiliation(s)
- M. Leticia Bravi Costantino
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA); Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET CCT-La Plata; CC 16 Sucursal 4, 1900 La Plata Argentina
| | - Tamara G Oberti
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA); Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET CCT-La Plata; CC 16 Sucursal 4, 1900 La Plata Argentina
| | - Ana M. Cortizo
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Departamento de Cs. Biológicas, Facultad de Cs. Exactas; UNLP; La Plata Argentina
| | - M. Susana Cortizo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA); Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET CCT-La Plata; CC 16 Sucursal 4, 1900 La Plata Argentina
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12
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Lastra ML, Molinuevo MS, Cortizo AM, Cortizo MS. Fumarate Copolymer-Chitosan Cross-Linked Scaffold Directed to Osteochondrogenic Tissue Engineering. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600219] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 09/30/2016] [Indexed: 11/09/2022]
Affiliation(s)
- María Laura Lastra
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA); Facultad de Ciencias Exactas; Universidad Nacional de La Plata (UNLP); CCT- La Plata, CONICET CC 16, Suc. 4. Argentina
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM); Departamento de Ciencias Biológicas; Facultad de Cs. Exactas; Universidad Nacional de La Plata; 47 y 115 (1900) La Plata Argentina
| | - María Silvina Molinuevo
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM); Departamento de Ciencias Biológicas; Facultad de Cs. Exactas; Universidad Nacional de La Plata; 47 y 115 (1900) La Plata Argentina
| | - Ana María Cortizo
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM); Departamento de Ciencias Biológicas; Facultad de Cs. Exactas; Universidad Nacional de La Plata; 47 y 115 (1900) La Plata Argentina
| | - María Susana Cortizo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA); Facultad de Ciencias Exactas; Universidad Nacional de La Plata (UNLP); CCT- La Plata, CONICET CC 16, Suc. 4. Argentina
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13
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Biodegradable polyester networks including hydrophilic groups favor BMSCs differentiation and can be eroded by macrophage action. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.05.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Novel Vanadium-Loaded Ordered Collagen Scaffold Promotes Osteochondral Differentiation of Bone Marrow Progenitor Cells. Int J Biomater 2016; 2016:1486350. [PMID: 27293438 PMCID: PMC4879236 DOI: 10.1155/2016/1486350] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 04/13/2016] [Accepted: 04/17/2016] [Indexed: 12/03/2022] Open
Abstract
Bone and cartilage regeneration can be improved by designing a functionalized biomaterial that includes bioactive drugs in a biocompatible and biodegradable scaffold. Based on our previous studies, we designed a vanadium-loaded collagen scaffold for osteochondral tissue engineering. Collagen-vanadium loaded scaffolds were characterized by SEM, FTIR, and permeability studies. Rat bone marrow progenitor cells were plated on collagen or vanadium-loaded membranes to evaluate differences in cell attachment, growth and osteogenic or chondrocytic differentiation. The potential cytotoxicity of the scaffolds was assessed by the MTT assay and by evaluation of morphological changes in cultured RAW 264.7 macrophages. Our results show that loading of VOAsc did not alter the grooved ordered structure of the collagen membrane although it increased membrane permeability, suggesting a more open structure. The VOAsc was released to the media, suggesting diffusion-controlled drug release. Vanadium-loaded membranes proved to be a better substratum than C0 for all evaluated aspects of BMPC biocompatibility (adhesion, growth, and osteoblastic and chondrocytic differentiation). In addition, there was no detectable effect of collagen or vanadium-loaded scaffolds on macrophage viability or cytotoxicity. Based on these findings, we have developed a new ordered collagen scaffold loaded with VOAsc that shows potential for osteochondral tissue engineering.
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15
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Belluzo MS, Medina LF, Cortizo AM, Cortizo MS. Ultrasonic compatibilization of polyelectrolyte complex based on polysaccharides for biomedical applications. ULTRASONICS SONOCHEMISTRY 2016; 30:1-8. [PMID: 26703196 DOI: 10.1016/j.ultsonch.2015.11.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 11/11/2015] [Accepted: 11/23/2015] [Indexed: 06/05/2023]
Abstract
In recent years, there has been an increasing interest in the design of biomaterials for cartilage tissue engineering. This type of materials must meet several requirements. In this study, we apply ultrasound to prepare a compatibilized blend of polyelectrolyte complexes (PEC) based on carboxymethyl cellulose (CMC) and chitosan (CHI), in order to improve stability and mechanical properties through the inter-polymer macroradicals coupling produced by sonochemical reaction. We study the kinetic of the sonochemical degradation of each component in order to optimize the experimental conditions for PEC compatibilization. Scaffolds obtained applying this methodology and scaffolds without ultrasound processing were prepared and their morphology (by scanning electron microscopy), polyelectrolyte interactions (by FTIR), stability and mechanical properties were analyzed. The swelling kinetics was studied and interpreted based on the structural differences between the two kinds of scaffolds. In addition we evaluate the possible in vitro cytotoxicity of the scaffolds using macrophage cells in culture. Our results demonstrate that the ultrasound is a very efficient methodology to compatibilize PEC, exhibiting improved properties compared with the simple mixture of the two polysaccharides. The test with murine macrophage RAW 264.7 cells showed no evince of cytotoxicity, suggesting that PEC biomaterials obtained under ultrasound conditions could be useful in the cartilage tissue engineering field.
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Affiliation(s)
- M Soledad Belluzo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata, CC 16 Suc. 4, CONICET, CCT-La Plata, La Plata, Argentina
| | - Lara F Medina
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata, CC 16 Suc. 4, CONICET, CCT-La Plata, La Plata, Argentina; LIOMM (Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, UNLP, La Plata, Argentina
| | - Ana M Cortizo
- LIOMM (Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, UNLP, La Plata, Argentina
| | - M Susana Cortizo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata, CC 16 Suc. 4, CONICET, CCT-La Plata, La Plata, Argentina
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16
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Khan F, Tanaka M, Ahmad SR. Fabrication of polymeric biomaterials: a strategy for tissue engineering and medical devices. J Mater Chem B 2015; 3:8224-8249. [DOI: 10.1039/c5tb01370d] [Citation(s) in RCA: 153] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Fabrication of biomaterials scaffolds using various methods and techniques is discussed, utilising biocompatible, biodegradable and stimuli-responsive polymers and their composites. This review covers the lithography and printing techniques, self-organisation and self-assembly methods for 3D structural scaffolds generation, and smart hydrogels, for tissue regeneration and medical devices.
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Affiliation(s)
- Ferdous Khan
- Senior Polymer Chemist
- ECOSE-Biopolymer
- Knauf Insulation Limited
- St. Helens
- UK
| | - Masaru Tanaka
- Biomaterials Science Group
- Department of Biochemical Engineering
- Graduate School of Science and Engineering
- Yamagata University
- Yonezawa
| | - Sheikh Rafi Ahmad
- Centre for Applied Laser Spectroscopy
- CDS
- DEAS
- Cranfield University
- Swindon
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