1
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Bauer L, Antunović M, Ivanković H, Ivanković M. Biomimetic Scaffolds Based on Mn 2+-, Mg 2+-, and Sr 2+-Substituted Calcium Phosphates Derived from Natural Sources and Polycaprolactone. Biomimetics (Basel) 2024; 9:30. [PMID: 38248604 PMCID: PMC10813741 DOI: 10.3390/biomimetics9010030] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/18/2023] [Accepted: 12/25/2023] [Indexed: 01/23/2024] Open
Abstract
The occurrence of bone disorders is steadily increasing worldwide. Bone tissue engineering (BTE) has emerged as a promising alternative to conventional treatments of bone defects, developing bone scaffolds capable of promoting bone regeneration. In this research, biomimetic scaffolds based on ion-substituted calcium phosphates, derived from cuttlefish bone, were prepared using a hydrothermal method. To synthesize Mn2+-substituted scaffolds, three different manganese concentrations (corresponding to 1, 2.5, and 5 mol% Mn substitutions for Ca into hydroxyapatite) were used. Also, syntheses with the simultaneous addition of an equimolar amount (1 mol%) of two (Mg2+ and Sr2+) or three ions (Mn2+, Mg2+, and Sr2+) were performed. A chemical, structural, and morphological characterization was carried out using X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy. The effects of the ion substitutions on the lattice parameters, crystallite sizes, and fractions of the detected phases were discussed. Multi-substituted (Mn2+, Mg2+, and Sr2+) scaffolds were coated with polycaprolactone (PCL) using simple vacuum impregnation. The differentiation of human mesenchymal stem cells (hMSCs), cultured on the PCL-coated scaffold, was evaluated using histology, immunohistochemistry, and reverse transcription-quantitative polymerase chain reaction analyses. The expression of collagen I, alkaline phosphatase, and dentin matrix protein 1 was detected. The influence of PCL coating on hMSCs behavior is discussed.
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Affiliation(s)
- Leonard Bauer
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
| | - Maja Antunović
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
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2
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Bauer L, Rogina A, Ivanković M, Ivanković H. Medical-Grade Poly(Lactic Acid)/Hydroxyapatite Composite Films: Thermal and In Vitro Degradation Properties. Polymers (Basel) 2023; 15:polym15061512. [PMID: 36987292 PMCID: PMC10059894 DOI: 10.3390/polym15061512] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 02/16/2023] [Revised: 03/12/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Production of biocompatible composite scaffolds shifts towards additive manufacturing where thermoplastic biodegradable polymers such as poly(lactic acid) (PLA) are used as matrices. Differences between industrial- and medical-grade polymers are often overlooked although they may affect properties and degradation behaviour as significantly as the filler addition. In the present research, composite films based on medical-grade PLA and biogenic hydroxyapatite (HAp) with 0, 10, and 20 wt.% of HAp were prepared by solvent casting technique. The degradation of composites incubated in phosphate-buffered saline solution (PBS) at 37 °C after 10 weeks showed that the higher HAp content slowed down the hydrolytic PLA degradation and improved its thermal stability. Morphological nonuniformity after degradation was indicated by the different glass transition temperatures (Tg) throughout the film. The Tg of the inner part of the sample decreased significantly faster compared with the outer part. The decrease was observed prior to the weight loss of composite samples.
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Affiliation(s)
- Leonard Bauer
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
| | - Anamarija Rogina
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
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3
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Schauperl Z, Ivanković L, Bauer L, Šolić S, Ivanković M. Effects of Different Surface Treatments of Woven Glass Fibers on Mechanical Properties of an Acrylic Denture Base Material. Int J Mol Sci 2023; 24:ijms24020909. [PMID: 36674421 PMCID: PMC9863130 DOI: 10.3390/ijms24020909] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/20/2022] [Accepted: 12/24/2022] [Indexed: 01/06/2023] Open
Abstract
Silanized glass fibers are popular reinforcements of acrylic denture base materials. To increase the number of surface hydroxyl groups and to improve interfacial adhesion between the matrix and reinforcements, acid or base treatments of glass fibers are commonly performed before the silanization. However, limited data are available on the effect of these treatments on the mechanical properties of acrylic matrix composite materials used for denture base applications. In this work, before the silanization of a woven glass fiber fabric (GF) with 3-(trimethoxysilyl) propyl methacrylate, activation pretreatments using HCl and NH4OH aqueous solutions have been performed. To characterize the glass surface, FTIR spectroscopy was used. Specimens of cured acrylic denture base resin and composites were divided into five groups: (1) cured acrylic denture base resin-control group; (2) composite with non-silanized GF; (3) composite with silanized GF; (4) composite with NH4OH activated and silanized GF; (5) composite with HCl activated and silanized GF. The flexural and impact properties of specimens were evaluated by means of three-point-bending tests and Charpy impact testing, respectively. The residual reactivity of the samples was analyzed using differential scanning calorimetry. The results of mechanical testing showed that acid and base pretreatments of the glass fabric had a positive effect on the flexural modulus of prepared composites but a negative effect on their impact strength. Possible interfacial adhesion mechanisms and the diffusion control of isothermal cure reactions due to vitrification have been discussed.
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Affiliation(s)
- Zdravko Schauperl
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
| | - Luka Ivanković
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
| | - Leonard Bauer
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, 10001 Zagreb, Croatia
| | - Sanja Šolić
- Department of Mechanical Engineering, University North, J. Križanića 31b, 42000 Varaždin, Croatia
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, 10001 Zagreb, Croatia
- Correspondence:
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4
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Ressler A, Antunović M, Teruel-Biosca L, Ferrer GG, Babić S, Urlić I, Ivanković M, Ivanković H. Osteogenic differentiation of human mesenchymal stem cells on substituted calcium phosphate/chitosan composite scaffold. Carbohydr Polym 2022; 277:118883. [PMID: 34893286 DOI: 10.1016/j.carbpol.2021.118883] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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: 08/31/2021] [Revised: 10/26/2021] [Accepted: 11/09/2021] [Indexed: 11/24/2022]
Abstract
Ionic substitutions are a promising strategy to enhance the biological performance of calcium phosphates (CaP) and composite materials for bone tissue engineering applications. However, systematic studies have not been performed on multi-substituted organic/inorganic scaffolds. In this work, highly porous composite scaffolds based on CaPs substituted with Sr2+, Mg2+, Zn2+ and SeO32- ions, and chitosan have been prepared by freeze-gelation technique. The scaffolds have shown highly porous structure, with very well interconnected pores and homogeneously dispersed CaPs, and high stability during 28 days in the degradation medium. Osteogenic potential of human mesenchymal stem cells seeded on scaffolds has been determined by histological, immunohistochemical and RT-qPCR analysis of cultured cells in static and dynamic conditions. Results indicated that ionic substitutions have a beneficial effect on cells and tissues. The scaffolds with multi-substituted CaPs have shown increased expression of osteogenesis related markers and increased phosphate deposits, compared to the scaffolds with non-substituted CaPs.
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Affiliation(s)
- Antonia Ressler
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10 000 Zagreb, Croatia.
| | - Maja Antunović
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10 000 Zagreb, Croatia
| | - Laura Teruel-Biosca
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
| | - Gloria Gallego Ferrer
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 46022 Valencia, Spain.
| | - Slaven Babić
- UHC "Sestre Milosrdnice", Department for Traumatology, Draškovićeva 19, 10 000 Zagreb, Croatia
| | - Inga Urlić
- Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb 10 000, Croatia.
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10 000 Zagreb, Croatia.
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10 000 Zagreb, Croatia.
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5
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Ressler A, Antunović M, Cvetnić M, Ivanković M, Ivanković H. Selenite Substituted Calcium Phosphates: Preparation, Characterization, and Cytotoxic Activity. Materials (Basel) 2021; 14:ma14123436. [PMID: 34205736 PMCID: PMC8234483 DOI: 10.3390/ma14123436] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 01/28/2023]
Abstract
The aim of this study was to prepare a biomimetic selenium substituted calcium phosphate system for potential application in osteosarcoma therapy. Calcium phosphate (CaP) systems substituted with selenite ions were prepared by the wet precipitation method, using biogenic CaCO3 (derived from cuttlefish bone), CO(NH2)2-H3PO4, and Na2SeO3·5H2O as reagents. Starting reaction mixtures were prepared based on the formula for selenite-substituted hydroxyapatite, Ca10(PO4)6-x(SeO3)x(OH)2, with Ca/(P + Se) molar ratio of 1.67 and Se/(P + Se) molar ratio of: 0, 0.01, 0.05, and 0.10, respectively. The prepared CaP powders were characterized by Fourier transform infrared spectrometry, elemental analysis, scanning electron microscopy, X-ray powder diffraction analysis and Rietveld refinement studies. Phase transformation and ion release were analyzed during 7 days of incubation in simulated body fluid at 37 °C. The metabolic activity of healthy and osteosarcoma cell lines was assessed by cell cytotoxicity and viability test. The as-prepared powders were composed of calcium-deficient carbonated hydroxyapatite (HAp), octacalcium phosphate (OCP), and amorphous calcium phosphate (ACP). Along with the selenite substitution, the presence of Sr2+, Na+, and Mg2+ was detected as a result of using cuttlefish bone as a precursor for Ca2+ ions. Inductively coupled plasma mass spectrometry analysis showed that the Se/(P + Se) molar ratios of selenite substituted powders are lower than the nominal ratios. Heat treated powders were composed of HAp, α-tricalcium phosphate (α-TCP) and β-tricalcium phosphate (β-TCP). Doping CaP structure with selenite ions improves the thermal stability of HAp. The powder with the Se/(P + Se) molar ratio of 0.007 showed selective toxicity to cancer cells.
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6
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Rogina A, Pušić M, Štefan L, Ivković A, Urlić I, Ivanković M, Ivanković H. Characterization of Chitosan-Based Scaffolds Seeded with Sheep Nasal Chondrocytes for Cartilage Tissue Engineering. Ann Biomed Eng 2021; 49:1572-1586. [PMID: 33409853 DOI: 10.1007/s10439-020-02712-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/14/2020] [Indexed: 11/25/2022]
Abstract
The treatment of cartilage defect remains a challenging issue in clinical practice. Chitosan-based materials have been recognized as a suitable microenvironment for chondrocyte adhesion, proliferation and differentiation forming articular cartilage. The use of nasal chondrocytes to culture articular cartilage on an appropriate scaffold emerged as a promising novel strategy for cartilage regeneration. Beside excellent properties, chitosan lacks in biological activity, such as RGD-sequences. In this work, we have prepared pure and protein-modified chitosan scaffolds of different deacetylation degree and molecular weight as platforms for the culture of sheep nasal chondrocytes. Fibronectin (FN) was chosen as an adhesive protein for the improvement of chitosan bioactivity. Prepared scaffolds were characterised in terms of microstructure, physical and biodegradation properties, while FN interactions with different chitosans were investigated through adsorption-desorption studies. The results indicated faster enzymatic degradation of chitosan scaffolds with lower deacetylation degree, while better FN interactions with material were achieved on chitosan with higher number of amine groups. Histological and immunohistochemical analysis of in vitro engineered cartilage grafts showed presence of hyaline cartilage produced by nasal chondrocytes.
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Affiliation(s)
- Anamarija Rogina
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001, Zagreb, Croatia.
| | - Maja Pušić
- Faculty of Science, University of Zagreb, Horvatovac102a, 10001, Zagreb, Croatia.
| | - Lucija Štefan
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001, Zagreb, Croatia
| | - Alan Ivković
- Department of Histology and Embryology, School of Medicine, University of Zagreb, Šalata 3, 10001, Zagreb, Croatia
- Department of Orthopaedic Surgery, University Hospital Sveti Duh, Sveti Duh 64, 10001, Zagreb, Croatia
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000, Rijeka, Croatia
- University of Applied Health Sciences, Mlinarska cesta 38, 10001, Zagreb, Croatia
| | - Inga Urlić
- Faculty of Science, University of Zagreb, Horvatovac102a, 10001, Zagreb, Croatia
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001, Zagreb, Croatia
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001, Zagreb, Croatia
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7
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Rogina A, Vidović D, Antunović M, Ivanković M, Ivanković H. Metal ion-assisted formation of porous chitosan-based microspheres for biomedical applications. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1776283] [Citation(s) in RCA: 1] [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: 10/23/2022]
Affiliation(s)
- Anamarija Rogina
- Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
| | - Dorina Vidović
- Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
| | - Maja Antunović
- Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
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8
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Abstract
Nanocomposite structure of the bone can be mimicked by chitosan/hydroxyapatite (CS/HAp) composite scaffold. Biological hydroxyapatite (HAp) contains various ions, which have a crucial role in bone growth. The aim of the present work was to synthesize biomimetic hydroxyapatite and prepare composite scaffolds based on chitosan, where HAp was synthesised from hen eggshells, seashells and cuttlefish bone. The powders were composed of nano-structured calcium deficient HAp and amorphous calcium phosphate (ACP). In the as-prepared powders, Sr2+, Mg2+ and Na+ ions were detected as a result of using biogenic precursor of Ca2+ ions. Highly porous CS/HAp structures have been prepared by freeze-gelation technique. The CS/HAp scaffolds have shown highly porous structure with very well interconnected pores and homogeneously dispersed HAp particles. The MTT assay of CS/HAp scaffolds has shown no toxicity, and the live/dead assay has confirmed good viability and proliferation of seeded cells.
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Affiliation(s)
- Antonia Ressler
- University of Zagreb, Faculty of Chemical Engineering and Technology
| | - Karla Zadro
- Faculty of Chemical Engineering and Technology, University of Zagreb
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, HR-10001 Zagreb, Marulićev trg 19, p.p.177, Croatia
| | - Matija Cvetnić
- Faculty of Chemical Engineering and Technology, University of Zagreb
| | - Maja Antunović
- Faculty of Chemical Engineering and Technology, University of Zagreb, HR-10001 Zagreb, Marulićev trg 19, p.p.177, Croatia
| | - Ana Gudelj
- Faculty of Chemical Engineering and Technology, University of Zagreb
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9
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Ressler A, Cvetnić M, Antunović M, Marijanović I, Ivanković M, Ivanković H. Strontium substituted biomimetic calcium phosphate system derived from cuttlefish bone. J Biomed Mater Res B Appl Biomater 2019; 108:1697-1709. [PMID: 31738012 DOI: 10.1002/jbm.b.34515] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 07/12/2019] [Revised: 10/02/2019] [Accepted: 11/04/2019] [Indexed: 01/13/2023]
Abstract
Biomimetic triphasic strontium-substituted calcium phosphate (CaP) powders were prepared by wet precipitation method at 50°C, using CaCO3 , (NH2 )2 COH3 PO4 , and Sr(NO3 )2 as reagents. Calcite was prepared from biogenic source (cuttlefish bone). The synthesized powders have been characterized by elemental analysis, Fourier transform infrared spectrometry, X-ray diffraction, Rietveld refinement studies and cell viability test. Phase transformation and ion release were analyzed during 7 days of incubation in simulated body fluid at 37°C. The raw precipitated powders were composed of calcium deficient carbonated hydroxyapatite (HA), octacalcium phosphate (OCP), and amorphous calcium phosphate (ACP). After heat treatment at 1200°C β-tricalcium phosphate (β-TCP) was detected. Strontium substitution for calcium results in an increase of lattice parameters in HA, OCP, and β-TCP. Sr2+ occupy the Ca(1) site in HA, Ca(3,4,7,8) sites in OCP and Ca(1,2,3,4) sites in β-TCP. Along with Sr2+ substitution, presence of Mg2+ and Na+ ions was detected as a result of using biogenic calcium carbonate. The culture of human embryonic kidney cells indicated noncytotoxicity of the prepared CaP powders with emphasis on the cell proliferation during 3 days of culture.
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Affiliation(s)
- Antonia Ressler
- Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
| | - Matija Cvetnić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
| | - Maja Antunović
- Faculty of Science, University of Zagreb, Zagreb, Croatia
| | | | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
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Rogina A, Lončarević A, Antunović M, Marijanović I, Ivanković M, Ivanković H. Tuning physicochemical and biological properties of chitosan through complexation with transition metal ions. Int J Biol Macromol 2019; 129:645-652. [DOI: 10.1016/j.ijbiomac.2019.02.075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/06/2019] [Accepted: 02/13/2019] [Indexed: 12/20/2022]
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Abstract
Bioactive synthetic hydrogels have emerged as promising materials because they<br />
can provide molecularly tailored biofunctions and adjustable mechanical properties. To<br />
mimic the mineralogical and organic components of the natural bone, hydroxyapatite and<br />
a tyramine conjugate of gelatine were combined in this study. The effect of various amounts of in situ synthesized hydroxyapatite in gelatine-tyramine on the morphology<br />
and physical properties of injectable hydrogels was investigated. Mineralogical identification confirmed successful precipitation of in situ formed hydroxyapatite. Better distribution of hydroxyapatite crystal agglomerates within modified gelatine was found at 5 % of hydroxyapatite, which could be responsible for increased storage modulus with respect to pure gelatine hydrogel. Prepared composite hydrogels are non-toxic and support<br />
the proliferation of Hek293 cells.
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Affiliation(s)
- Anamarija Rogina
- Faculty of Chemical Engineering and Technology, University of Zagreb
| | - Nikolina Šandrk
- Faculty of Chemical Engineering and Technology, University of Zagreb
| | - Laura Teruel-Biosca
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Maja Antunović
- Faculty of Chemical Engineering and Technology, University of Zagreb, HR-10001 Zagreb, Marulićev trg 19, p.p.177, Croatia
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, HR-10001 Zagreb, Marulićev trg 19, p.p.177, Croatia
| | - Gloria Gallego Ferrer
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; b Biomedical Research Networking centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Mariano Esquillor s/n,
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12
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Ressler A, Ródenas-Rochina J, Ivanković M, Ivanković H, Rogina A, Gallego Ferrer G. Injectable chitosan-hydroxyapatite hydrogels promote the osteogenic differentiation of mesenchymal stem cells. Carbohydr Polym 2018; 197:469-477. [PMID: 30007636 DOI: 10.1016/j.carbpol.2018.06.029] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 05/10/2018] [Accepted: 06/05/2018] [Indexed: 11/25/2022]
Abstract
Injectable hydrogels have emerged as promising biomaterials for tissue engineering applications. The goal of this study was to evaluate the potential of a pH-responsive chitosan-hydroxyapatite hydrogel to be used as a three-dimensional support for encapsulated mesenchymal stem cells (MSCs) osteogenic differentiation. In vitro enzymatic degradation of the hydrogel, during 28 days of incubation, in simulated physiological condiditons, was characterized by swelling measurements, molecular weight determination and SEM analysis of hydrogel microstructure. Osteogenic differentiation of encapsulated MSCs was confirmed by osteogenic Runx2, collagen type I and osteocalcin immunostaining and alkaline phosphatase quantification. The deposition of late osteogenic markers (calcium phosphates) detected by Alizarin red and von Kossa staining indicated an extracellular matrix mineralization.
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Affiliation(s)
- Antonia Ressler
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, HR-10001 Zagreb, Croatia.
| | - Joaquín Ródenas-Rochina
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, HR-10001 Zagreb, Croatia.
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, HR-10001 Zagreb, Croatia.
| | - Anamarija Rogina
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, HR-10001 Zagreb, Croatia.
| | - Gloria Gallego Ferrer
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain.
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Abstract
Up till now, chitosan has confirmed its versatile application in skin, cartilage and bone tissue engineering, as well as in drug delivery applications. This study is focused on enzymatic degradation of porous chitosan structures usually designed for mentioned purposes. In vitro degradation was monitored during four weeks of incubation at physiological temperature and in two different media, phosphate buffer saline solution and water. The scaffolds were characterised before and after enzymatic degradation using scanning electron microscopy and infrared spectroscopy with Fourier transformations (FTIR). According to the gravimetric analysis, higher weight loss of chitosan scaffolds was observed in buffered medium with respect to the water. The results implied that the total weight loss obtained in buffer involves physical dissolution of chitosan and lysozyme cleavage of glycoside bond. Importantly, FTIR identification of chitosan scaffolds after enzymatic degradation indicated the absence of lysozyme activity in water, indicating that weight loss is a result of the chitosan dissolution. This finding greatly impacts design of degradation experiments and characterisation of degradation behaviour of chitosan-based materials utilised as implants or drug delivery systems.
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Affiliation(s)
- Andrea Lončarević
- Faculty of Chemical Engineering and Technology, University of Zagreb
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb
| | - Anamarija Rogina
- Faculty of Chemical Engineering and Technology, University of Zagreb
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14
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Rogina A, Antunović M, Pribolšan L, Caput Mihalić K, Vukasović A, Ivković A, Marijanović I, Gallego Ferrer G, Ivanković M, Ivanković H. Human Mesenchymal Stem Cells Differentiation Regulated by Hydroxyapatite Content within Chitosan-Based Scaffolds under Perfusion Conditions. Polymers (Basel) 2017; 9:E387. [PMID: 30965692 PMCID: PMC6418638 DOI: 10.3390/polym9090387] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 07/21/2017] [Revised: 08/18/2017] [Accepted: 08/21/2017] [Indexed: 11/24/2022] Open
Abstract
The extensive need for hard tissue substituent greatly motivates development of suitable allogeneic grafts for therapeutic recreation. Different calcium phosphate phases have been accepted as scaffold's components with positive influence on osteoinduction and differentiation of human mesenchymal stem cells, in terms of their higher fraction within the graft. Nevertheless, the creation of unlimited nutrients diffusion through newly formed grafts is of great importance. The media flow accomplished by perfusion forces can provide physicochemical, and also, biomechanical stimuli for three-dimensional bone-construct growth. In the present study, the influence of a different scaffold's composition on the human mesenchymal stem cells (hMSCs) differentiation performed in a U-CUP bioreactor under perfusion conditioning was investigated. The histological and immunohistochemical analysis of cultured bony tissues, and the evaluation of osteogenic genes' expression indicate that the lower fraction of in situ formed hydroxyapatite in the range of 10⁻30% within chitosan scaffold could be preferable for bone-construct development.
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Affiliation(s)
- Anamarija Rogina
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001 Zagreb, Croatia.
| | - Maja Antunović
- Faculty of Science, University of Zagreb, Horvatovac102a, 10001 Zagreb, Croatia.
| | - Lidija Pribolšan
- Faculty of Science, University of Zagreb, Horvatovac102a, 10001 Zagreb, Croatia.
| | | | - Andreja Vukasović
- Department of Histology and Embryology, School of Medicine, University of Zagreb, Šalata 3, 10001 Zagreb, Croatia.
| | - Alan Ivković
- Department of Histology and Embryology, School of Medicine, University of Zagreb, Šalata 3, 10001 Zagreb, Croatia.
- Department of Orthopaedic Surgery, University Hospital, Sveti Duh, 10001 Zagreb, Croatia.
| | - Inga Marijanović
- Faculty of Science, University of Zagreb, Horvatovac102a, 10001 Zagreb, Croatia.
| | - Gloria Gallego Ferrer
- Centro de Biomateriales e Ingeniería Tisular, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
- Biomedical Research Networking centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Mariano Esquillor s/n, 50018 Zaragoza, Spain.
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001 Zagreb, Croatia.
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10001 Zagreb, Croatia.
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15
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Rogina A, Ressler A, Matić I, Gallego Ferrer G, Marijanović I, Ivanković M, Ivanković H. Cellular hydrogels based on pH-responsive chitosan-hydroxyapatite system. Carbohydr Polym 2017; 166:173-182. [PMID: 28385221 DOI: 10.1016/j.carbpol.2017.02.105] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [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: 10/24/2016] [Revised: 02/23/2017] [Accepted: 02/27/2017] [Indexed: 11/30/2022]
Abstract
The development of bioactive injectable system as cell carrier with minimal impact on viability of encapsulated cells represents a great challenge. In the present work, we propose a new pH-responsive chitosan-hydroxyapatite-based hydrogel with sodium bicarbonate (NaHCO3) as the gelling agent. The in situ synthesis of hydroxyapatite phase has resulted in stable composite suspension and final homogeneous hydrogel. The application of sodium bicarbonate has allowed non-cytotoxic fast gelation of chitosan-hydroxyapatite within 4min, and without excess of sodium ions concentration. Rheological properties of crosslinked hydrogel have demonstrated possible behaviour as 'strong physical hydrogel'. The live dead staining has confirmed good viability and dispersion, as well as proliferation of encapsulated cells by the culture time. Presented preliminary results show good potential of chitosan-hydroxyapatite/NaHCO3 as a cell carrier, whose impact on the cell differentiation need to be confirmed by encapsulation of other cell phenotypes.
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Affiliation(s)
- Anamarija Rogina
- Faculty of Chemical Engineering and Technology, University of Zagreb, HR-10001 Zagreb, Marulićev trg 19, p.p.177, Croatia.
| | - Antonia Ressler
- Faculty of Chemical Engineering and Technology, University of Zagreb, HR-10001 Zagreb, Marulićev trg 19, p.p.177, Croatia.
| | - Igor Matić
- Faculty of Science, University of Zagreb, HR-10001 Zagreb, Horvatovac102a, Croatia.
| | - Gloria Gallego Ferrer
- Centro de Biomateriales e Ingeniería Tisular, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; Biomedical Research Networking centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain.
| | - Inga Marijanović
- Faculty of Science, University of Zagreb, HR-10001 Zagreb, Horvatovac102a, Croatia.
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, HR-10001 Zagreb, Marulićev trg 19, p.p.177, Croatia.
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, HR-10001 Zagreb, Marulićev trg 19, p.p.177, Croatia.
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16
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Rogina A, Rico P, Gallego Ferrer G, Ivanković M, Ivanković H. In Situ Hydroxyapatite Content Affects the Cell Differentiation on Porous Chitosan/Hydroxyapatite Scaffolds. Ann Biomed Eng 2015; 44:1107-19. [DOI: 10.1007/s10439-015-1418-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/04/2015] [Indexed: 12/27/2022]
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17
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Rogina A, Rico P, Gallego Ferrer G, Ivanković M, Ivanković H. Effect of in situ formed hydroxyapatite on microstructure of freeze-gelled chitosan-based biocomposite scaffolds. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.05.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Teyssandier F, Ivanković M, Love BJ. Modeling the effect of the curing conversion on the dynamic viscosity of epoxy resins cured by an anhydride curing agent. J Appl Polym Sci 2009. [DOI: 10.1002/app.31148] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Ivanković M, Brnardić I, Ivanković H, Huskić M, Gajović A. Preparation and properties of organic–inorganic hybrids based on poly(methyl methacrylate) and sol–gel polymerized 3-glycidyloxypropyltrimethoxysilane. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.03.059] [Citation(s) in RCA: 29] [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] [Indexed: 11/29/2022]
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20
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Škrobot Vidaček N, Çukušić A, Ferenac Kiš M, Ivanković M, Jevtov I, Mrsić S, Rubelj I. Telomere dynamics and genome stability in the human pancreatic tumor cell line MIAPaCa-2. Cytogenet Genome Res 2007; 119:60-7. [DOI: 10.1159/000109620] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2007] [Accepted: 05/23/2007] [Indexed: 12/19/2022] Open
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21
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Brnardić I, Macan J, Ivanković H, Ivanković M. Thermal degradation kinetics of epoxy/organically modified montmorillonite nanocomposites. J Appl Polym Sci 2007. [DOI: 10.1002/app.27230] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Abstract
Normal human somatic cells have a limited division potential when they grow in vitro. It is believed that shortening of telomeres, specialized structures at the ends of chromosomes, controls cell growth. When one telomere achieves a critical minimal length, the cell cycle control mechanism recognizes it as DNA damage and causes the cell's exit from the cycle in G1-phase. Because it is not possible to extend telomeres in normal cells, this non-dividing state is prolonged indefinitely, and is known as cellular senescence. The immortal cell line MDA-MB-231 has active telomerase, which prevents telomere shortening and allows cells' permanent divisions. However, there is a fraction of cells that do not divide over several days in culture as documented for some other tumour cell lines. Combination of methods has made it possible to isolate these non-growing cells and compare them with the fraction of fast-growing cells from the same culture. Although the non-growing fraction contains a significant percentage of typical senescent cells, both fractions have equal telomerase activity and telomere length. In this paper we discuss possible mechanisms that cause the appearance of this non-growing fraction of cells in cultures of MDA-MB-231, which indicate stress and genome instability rather than variation in telomerase activity or telomere shortening to affect individual cells.
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Affiliation(s)
- A Cukusić
- Department of Molecular Biology, Ruder Boskovic Institute, Bijenicka 54, 10 000 Zagreb, Croatia
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23
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Ivanković M. [Etiopathogenesis of varicosities of the lower extremities]. Lijec Vjesn 1991; 113:394-7. [PMID: 1669607] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This study was performed to validate the importance of heredity in the development of varicosities of lower extremities and to establish the correlation between the sclerotherapy and the pathological changes on the perforating and deep veins. The aim was also to determine the share of trauma in the development of insufficiency of the perforating veins of the lower leg. The author studied 484 hospitalized patients. By application of modern diagnostic procedures, pathological changes in the system of veins were discovered and located and varicose veins were classified into five groups. A positive family history was found in 64.5% of the treated patients. The relationship between the heredity and the pathological changes in the venous system has been given in tables. Of all the treated patients, 12.2% underwent sclerotherapy earlier. Among these patients, 50.8% showed pathological changes on the perforating veins; in 22% pathological changes, however, were found on the deep veins as well. One hundred and thirty-five patients were operated on due to insufficiency of the communicating veins. Of those patients, 21.4% stated a positive trauma in their past history, while 14.1% showed some degenerative changes in the fatty-connective tissue of the deep fascia of leg. In conclusion these results tissue of the deep fascia of leg. In conclusion these results confirm the hypothesis that trauma of lower extremities may lead to insufficiency of the communicating veins.
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Affiliation(s)
- M Ivanković
- Kirurski odjel Medicinskog centra Vukovar i Kirurski odjel Opće bolnice, Osijek
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24
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Ivanković M. [Etiopathogenesis of varicosities of the lower extremities]. Lijec Vjesn 1990; 112:365-9. [PMID: 2097467] [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] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To investigate the significance of heredity in the development of varicosities of the lower extremities, and to establish the association between the sclerotherapy and the pathologic changes of the perforating and deep veins as well as the share of trauma in the development of perforating venous insufficiency of the lower part of the leg, the author studied 484 hospitalized patients. By using modern diagnostic procedures, the pathologic changes of the venous system were identified and located and varicosities were classified into five groups. A positive family anamnesis was found in 64.5% of the treated patients. The relationship between the heredity and the pathologic changes of the venous system is shown in tables. Of all the treated patients, 12.2% underwent sclerotization before the admission to the hospital. In 50.8% of these patients, the author found pathologic changes of the perforating veins and in 22% pathologic changes of the deep veins, as well. Due to perforating venous insufficiency 135 patients were operated. Among these patients, 21.4% reported positive history of trauma, while in 14.1% of surgically treated patients some degenerative changes of the fatty-connective tissue of the crural fascia were found. This speaks in favour of the assumption that trauma of the lower extremities may lead to perforating venous insufficiency.
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