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Xavier M, Farez N, Salvatierra PL, Jardini AL, Kharmandayan P, Feldman S. Biological performance of a bioabsorbable Poly (L-Lactic Acid) produced in polymerization unit: in vivo studies. F1000Res 2021; 10:1275. [PMID: 35035900 PMCID: PMC8729025 DOI: 10.12688/f1000research.73754.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/04/2021] [Indexed: 11/20/2022] Open
Abstract
Background: The biomaterials engineering goal is to manufacture a biocompatible scaffold that adequately supports or improves tissue regeneration after implantation of the biomaterial in the injured area. Many requirements are demanded for a biomaterial, such as biocompatibility, elasticity, degradation time, and a very important factor is its cost of importation or synthesis, making its application inaccessible to some countries. Studies about biomaterials market show that Polylactic acid (PLLA) is one of the most used polymers, but expensive to produce. It becomes important to prove the biocompatibility of the new PLLA and to find strategies to produce biocompatible biopolymers at an acceptable production cost. Methods: In this work, the polylactic acid biomaterial was synthesized by ring-opening polymerization. The polymer was submitted to initial in vivo biocompatibility studies in 12 New Zealand female rabbits, assigned to two groups: (1) Lesion and PLLA group (n = 6), (2) Lesion No PLLA group (n = 6). Each group was divided into two subgroups at six and nine months post-surgical time. Before euthanasia clinical and biochemical studies were performed and after that tomographic (CT), histological (Hematoxylin and Eosin and Masson's trichrome) and histomorphometric analyses were performed to evaluate the injury site and prove biocompatibility. The final cost of this polymer was analyzed. Results: The statistical studies of hemogram and hepatocyte enzymes, showed that there were no significant differences between the groups for any of the times studied, in any of the variables considered and the results of CT and histology showed that there was an important process of neoregeneration. The cost analysis showed the biopolymer synthesis is between R$3,06 - R$5,49 cheaper than the import cost. Conclusions: It was possible to synthesize the PLLA biopolymer by cyclic ring opening, which proved to be biocompatible, potential osteoregenerative and cheaper than other imported biopolymers.
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Affiliation(s)
- Mariana Xavier
- School of Chemical Engineering, Institute of Biofabrication, Campinas, São Paulo, 13081-970, Brazil
- School of Medicine, LABOATEM Laboratory of Molecular Biology, Tissue Engineering and Emerging Therapies, Rosario, Santa fé, 2000, Argentina
- School of Medical Sciences, Campinas, São Paulo, 13083-970, Brazil
| | - Nayla Farez
- School of Medicine, LABOATEM Laboratory of Molecular Biology, Tissue Engineering and Emerging Therapies, Rosario, Santa fé, 2000, Argentina
| | | | - Andre Luiz Jardini
- School of Medicine, LABOATEM Laboratory of Molecular Biology, Tissue Engineering and Emerging Therapies, Rosario, Santa fé, 2000, Argentina
| | - Paulo Kharmandayan
- School of Chemical Engineering, Institute of Biofabrication, Campinas, São Paulo, 13081-970, Brazil
- School of Medical Sciences, Campinas, São Paulo, 13083-970, Brazil
| | - Sara Feldman
- School of Medicine, LABOATEM Laboratory of Molecular Biology, Tissue Engineering and Emerging Therapies, Rosario, Santa fé, 2000, Argentina
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Camal Ruggieri IN, Ramallo M, Grenón HG, MARDEGAN ISSA JP, Feldman S. DESARROLLO Y CRECIMIENTO FEMORAL DE CONEJAS DE LA LÍNEA NEW ZEALAND. ACTA BIOLÓGICA COLOMBIANA 2021. [DOI: 10.15446/abc.v26n3.87221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
En este proyecto se investigan los cambios que acontecen en el desarrollo y crecimiento de conejos hembras de la línea New Zealand (CoNZ) en sus huesos femorales. Los animales fueron mantenidas en jaulas individuales desde las 2 semanas de edad, con comida y agua ad libitum y se sacrificaron en tiempos mensualmente consecutivos: 1, 2, 3, 4, 5, y 6 meses. Tras la obtención de las piezas femorales, y a partir de estudios imagenológicos se determinaron los ángulos del cuello femoral (Af), la longitud total (L), la densidad mineral ósea total, del centro óseo y de la metáfisis femoral (DMOt, DMOco y DMOmf respectivamente), analizándose las variaciones intergrupales por el test Wilcoxon, y corrección de Bonferroni. Se realizaron estudios histológicos de los cortes descalcificados de las piezas femorales. Los análisis sobre los Af mostraron un incremento significativo durante el primer mes mientras que L se estabilizó a partir del 4to mes. Los valores de DMOt mostraron un plateau a partir del cuarto mes, si bien las DMOco y DMOmf ya a partir del tercer mes no mostraron incrementos significativos. Histológicamente se observó para el cuarto mes ausencia de las diferentes zonas características del cartílago de crecimiento metafisiario, con presencia únicamente de un pequeño remanente de células condrales. Desde el quinto mes se observa ausencia total de cartílago, con presencia únicamente de tejido osteoide (TO). La interpretación integrada de los resultados nos permite afirmar, que a partir del cuarto mes de desarrollo, el fémur de CoNZ adquiere características compatibles con un periodo de adultez.
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Camal Ruggieri IN, Cícero AM, Issa JPM, Feldman S. Bone fracture healing: perspectives according to molecular basis. J Bone Miner Metab 2021; 39:311-331. [PMID: 33151416 DOI: 10.1007/s00774-020-01168-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/13/2020] [Indexed: 12/11/2022]
Abstract
Fractures have a great impact on health all around the world and with fracture healing optimization; this problem could be resolved partially. To make a practical contribution to this issue, the knowledge of bone tissue, cellularity, and metabolism is essential, especially cytoskeletal architecture and its transformations according to external pressures. Special physical and chemical characteristics of the extracellular matrix (ECM) allow the transmission of mechanical stimuli from outside the cell to the plasmatic membrane. The osteocyte cytoskeleton is conformed by a complex network of actin and microtubules combined with crosslinker proteins like vinculin and fimbrin, connecting and transmitting outside stimuli through EMC to cytoplasm. Herein, critical signaling pathways like Cx43-depending ones, MAPK/ERK, Wnt, YAP/TAZ, Rho-ROCK, and others are activated due to mechanical stimuli, resulting in osteocyte cytoskeletal changes and ECM remodeling, altering the tissue and, therefore, the bone. In recent years, the osteocyte has gained more interest and value in relation to bone homeostasis as a great coordinator of other cell populations, thanks to its unique functions. By integrating the latest advances in relation to intracellular signaling pathways, mechanotransmission system of the osteocyte and bone tissue engineering, there are promising experimental strategies, while some are ready for clinical trials. This work aims to show clearly and precisely the integration between cytoskeleton and main molecular pathways in relation to mechanotransmission mechanism in osteocytes, and the use of this theoretical knowledge in therapeutic tools for bone fracture healing.
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Affiliation(s)
- Iván Nadir Camal Ruggieri
- School of Medicine, LABOATEM (Osteoarticular Biology, Tissue Engineering and Emerging Therapies Laboratory), Biological Chemistry Cat, School of Medicine, Rosario National University, Rosario, Argentina.
| | - Andrés Mauricio Cícero
- School of Medicine, LABOATEM (Osteoarticular Biology, Tissue Engineering and Emerging Therapies Laboratory), Biological Chemistry Cat, School of Medicine, Rosario National University, Rosario, Argentina
| | | | - Sara Feldman
- School of Medicine, LABOATEM (Osteoarticular Biology, Tissue Engineering and Emerging Therapies Laboratory), Biological Chemistry Cat, School of Medicine, Rosario National University, Rosario, Argentina
- Research Council of the Rosario National University (CIUNR) and CONICET, Rosario, Argentina
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4
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Ramallo M, Carreras-Sánchez I, López-Fernández A, Vélez R, Aguirre M, Feldman S, Vives J. Advances in translational orthopaedic research with species-specific multipotent mesenchymal stromal cells derived from the umbilical cord. Histol Histopathol 2020; 36:19-30. [PMID: 32914860 DOI: 10.14670/hh-18-249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Compliance with current regulations for the development of innovative medicines require the testing of candidate therapies in relevant translational animal models prior to human use. This poses a great challenge when the drug is composed of cells, not only because of the living nature of the active ingredient but also due to its human origin, which can subsequently lead to a xenogeneic response in the animals. Although immunosuppression is a plausible solution, this is not suitable for large animals and may also influence the results of the study by altering mechanisms of action that are, in fact, poorly understood. For this reason, a number of procedures have been developed to isolate homologous species-specific cell types to address preclinical pharmacodynamics, pharmacokinetics and toxicology. In this work, we present and discuss advances in the methodologies for derivation of multipotent Mesenchymal Stromal Cells derived from the umbilical cord, in general, and Wharton's jelly, in particular, from medium to large animals of interest in orthopaedics research, as well as current and potential applications in studies addressing proof of concept and preclinical regulatory aspects.
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Affiliation(s)
- Melina Ramallo
- School of Medicine, LABOATEM, - Osteoarticular Biology, Tissue Engineering and Emerging Therapies Laboratory, Biological Chemistry Cat., School of Medicine, National Rosario University, Rosario, Argentina
| | | | - Alba López-Fernández
- Servei de Teràpia Cellular, Banc de Sang i Teixits, Barcelona, Spain.,Musculoskeletal Tissue Engineering Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Roberto Vélez
- Musculoskeletal Tissue Engineering Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain.,Orthopedic Surgery Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
| | - Màrius Aguirre
- Musculoskeletal Tissue Engineering Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain.,Orthopedic Surgery Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
| | - Sara Feldman
- School of Medicine, LABOATEM, - Osteoarticular Biology, Tissue Engineering and Emerging Therapies Laboratory, Biological Chemistry Cat., School of Medicine, National Rosario University, Argentina.,Researh Council of the Rosario National University, (CIUNR) and CONICET, Rosario, Argentina.
| | - Joaquim Vives
- Servei de Teràpia Cellular, Banc de Sang i Teixits, Barcelona, Spain.,Musculoskeletal Tissue Engineering Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain.,Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain.
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Zuluaga M, Gregnanin G, Cencetti C, Di Meo C, Gueguen V, Letourneur D, Meddahi-Pellé A, Pavon-Djavid G, Matricardi P. PVA/Dextran hydrogel patches as delivery system of antioxidant astaxanthin: a cardiovascular approach. ACTA ACUST UNITED AC 2017; 13:015020. [PMID: 28875946 DOI: 10.1088/1748-605x/aa8a86] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
After myocardial infarction, the heart's mechanical properties and its intrinsic capability to recover are compromised. To improve this recovery, several groups have developed cardiac patches based on different biomaterials strategies. Here, we developed polyvinylalcohol/dextran (PVA/Dex) elastic hydrogel patches, obtained through the freeze thawing (FT) process, with the aim to deliver locally a potent natural antioxidant molecule, astaxanthin, and to assist the heart's response against the generated myofibril stress. Extensive rheological and dynamo-mechanical characterization of the effect of the PVA molecular weight, number of freeze-thawing cycles and Dex addition on the mechanical properties of the resulting hydrogels, were carried out. Hydrogel systems based on PVA 145 kDa and PVA 47 kDa blended with Dex 40 kDa, were chosen as the most promising candidates for this application. In order to improve astaxanthin solubility, an inclusion system using hydroxypropyl-β-cyclodextrin was prepared. This system was posteriorly loaded within the PVA/Dex hydrogels. PVA145/Dex 1FT and PVA47/Dex 3FT showed the best rheological and mechanical properties when compared to the other studied systems; environmental scanning electron microscope and confocal imaging evidenced a porous structure of the hydrogels allowing astaxanthin release. In vitro cellular behavior was analyzed after 24 h of contact with astaxanthin-loaded hydrogels. In vivo subcutaneous biocompatibility was performed in rats using PVA145/Dex 1FT, as the best compromise between mechanical support and astaxanthin delivery. Finally, ex vivo and in vivo experiments showed good mechanical and compatibility properties of this hydrogel. The obtained results showed that the studied materials have a potential to be used as myocardial patches to assist infarcted heart mechanical function and to reduce oxidative stress by the in situ release of astaxanthin.
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Affiliation(s)
- M Zuluaga
- INSERM, U1148, Laboratory for Vascular Translational Science, Cardiovascular Bioengineering, Paris 13 University, Sorbonne Paris Cite 99, Av. Jean-Baptiste Clément, F-93430 Villetaneuse, France. INSERM, U1148, Laboratory for Vascular Translational Science, Cardiovascular Bioengineering, CHU X. Bichat, 46 rue H. Huchard, F-75018 Paris, France
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Coletta DJ, Ibáñez-Fonseca A, Missana LR, Jammal MV, Vitelli EJ, Aimone M, Zabalza F, Issa JPM, Alonso M, Rodríguez-Cabello JC, Feldman S. Bone Regeneration Mediated by a Bioactive and Biodegradable Extracellular Matrix-Like Hydrogel Based on Elastin-Like Recombinamers. Tissue Eng Part A 2017; 23:1361-1371. [DOI: 10.1089/ten.tea.2017.0047] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Dante J. Coletta
- LABOATEM, Osteoarticular Biology, Tissue Engineering and Emerging Therapies Laboratory, School of Medicine, National Rosario University, Rosario, Argentina
| | | | - Liliana R. Missana
- Experimental Pathology and Tissue Engineering Laboratory, Dental School, National Tucumán University, Tucumán, Argentina
- Tissues Laboratory, Proimi-Biotechnology-Conicet, Tucumán, Argentina
| | - María V. Jammal
- Experimental Pathology and Tissue Engineering Laboratory, Dental School, National Tucumán University, Tucumán, Argentina
- Tissues Laboratory, Proimi-Biotechnology-Conicet, Tucumán, Argentina
| | - Ezequiel J. Vitelli
- LABOATEM, Osteoarticular Biology, Tissue Engineering and Emerging Therapies Laboratory, School of Medicine, National Rosario University, Rosario, Argentina
| | - Mariangeles Aimone
- LABOATEM, Osteoarticular Biology, Tissue Engineering and Emerging Therapies Laboratory, School of Medicine, National Rosario University, Rosario, Argentina
| | - Facundo Zabalza
- LABOATEM, Osteoarticular Biology, Tissue Engineering and Emerging Therapies Laboratory, School of Medicine, National Rosario University, Rosario, Argentina
| | | | - Matilde Alonso
- BIOFORGE Lab, University of Valladolid, CIBER-BBN, Valladolid, Spain
| | | | - Sara Feldman
- LABOATEM, Osteoarticular Biology, Tissue Engineering and Emerging Therapies Laboratory, School of Medicine, National Rosario University, Rosario, Argentina
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Esbrit P, Herrera S, Portal-Núñez S, Nogués X, Díez-Pérez A. Parathyroid Hormone-Related Protein Analogs as Osteoporosis Therapies. Calcif Tissue Int 2016; 98:359-69. [PMID: 26259869 DOI: 10.1007/s00223-015-0050-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 08/03/2015] [Indexed: 12/14/2022]
Abstract
The only bone anabolic agent currently available for osteoporosis treatment is parathyroid hormone (PTH)-either its N-terminal 1-34 fragment or the whole molecule of 1-84 aminoacids-whose intermittent administration stimulates new bone formation by targeting osteoblastogenesis and osteoblast survival. PTH-related protein (PTHrP) is an abundant factor in bone which shows N-terminal homology with PTH and thus exhibits high affinity for the same PTH type 1 receptor in osteoblasts. Therefore, it is not surprising that intermittently administered N-terminal PTHrP peptides induce bone anabolism in animals and humans. Furthermore, the C-terminal region of PTHrP also elicits osteogenic features in vitro in osteoblastic cells and in various animal models of osteoporosis. In this review, we discuss the current concepts about the cellular and molecular mechanisms whereby PTHrP may induce anabolic actions in bone. Pre-clinical studies and clinical data using N-terminal PTHrP analogs are also summarized, pointing to PTHrP as a promising alternative to current bone anabolic therapies.
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Affiliation(s)
- Pedro Esbrit
- Laboratorio de Metabolismo Mineral y Óseo, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Avda. Reyes Católicos, 2, 28040, Madrid, Spain.
- Universidad Autónoma de Madrid, Madrid, Spain.
- Red Temática de Investigación Cooperativa en Envejecimiento y Fragilidad (RETICEF), Instituto de Salud Carlos III, Madrid, Spain.
| | - Sabina Herrera
- Hospital del Mar-IMIM, Universidad Autónoma de Barcelona, Barcelona, Spain
- Red Temática de Investigación Cooperativa en Envejecimiento y Fragilidad (RETICEF), Instituto de Salud Carlos III, Madrid, Spain
| | - Sergio Portal-Núñez
- Laboratorio de Metabolismo Mineral y Óseo, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Avda. Reyes Católicos, 2, 28040, Madrid, Spain
- Universidad Autónoma de Madrid, Madrid, Spain
- Red Temática de Investigación Cooperativa en Envejecimiento y Fragilidad (RETICEF), Instituto de Salud Carlos III, Madrid, Spain
| | - Xavier Nogués
- Hospital del Mar-IMIM, Universidad Autónoma de Barcelona, Barcelona, Spain
- Red Temática de Investigación Cooperativa en Envejecimiento y Fragilidad (RETICEF), Instituto de Salud Carlos III, Madrid, Spain
| | - Adolfo Díez-Pérez
- Hospital del Mar-IMIM, Universidad Autónoma de Barcelona, Barcelona, Spain
- Red Temática de Investigación Cooperativa en Envejecimiento y Fragilidad (RETICEF), Instituto de Salud Carlos III, Madrid, Spain
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Kyllönen L, D’Este M, Alini M, Eglin D. Local drug delivery for enhancing fracture healing in osteoporotic bone. Acta Biomater 2015; 11:412-34. [PMID: 25218339 DOI: 10.1016/j.actbio.2014.09.006] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 08/30/2014] [Accepted: 09/04/2014] [Indexed: 01/08/2023]
Abstract
Fragility fractures can cause significant morbidity and mortality in patients with osteoporosis and inflict a considerable medical and socioeconomic burden. Moreover, treatment of an osteoporotic fracture is challenging due to the decreased strength of the surrounding bone and suboptimal healing capacity, predisposing both to fixation failure and non-union. Whereas a systemic osteoporosis treatment acts slowly, local release of osteogenic agents in osteoporotic fracture would act rapidly to increase bone strength and quality, as well as to reduce the bone healing period and prevent development of a problematic non-union. The identification of agents with potential to stimulate bone formation and improve implant fixation strength in osteoporotic bone has raised hope for the fast augmentation of osteoporotic fractures. Stimulation of bone formation by local delivery of growth factors is an approach already in clinical use for the treatment of non-unions, and could be utilized for osteoporotic fractures as well. Small molecules have also gained ground as stable and inexpensive compounds to enhance bone formation and tackle osteoporosis. The aim of this paper is to present the state of the art on local drug delivery in osteoporotic fractures. Advantages, disadvantages and underlying molecular mechanisms of different active species for local bone healing in osteoporotic bone are discussed. This review also identifies promising new candidate molecules and innovative approaches for the local drug delivery in osteoporotic bone.
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