Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200113 (Univeristy of Niš, Faculty of Medicine)

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Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200113 (Univeristy of Niš, Faculty of Medicine) (en)
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, Ugovor br. 451-03-68/2020-14/200113 (Univerzitet u Nišu, Medicinski fakultet) (sr_RS)
Министарство просвете, науке и технолошког развоја Републике Србије, Уговор бр. 451-03-68/2020-14/200113 (Универзитет у Нишу, Медицински факултет) (sr)
Authors

Publications

Applications of biomaterials in regenerative medicine and tissue engineering – concepts and perspective

Najman, Stevo; Stojanović, Sanja; Živković, Jelena; Najdanović, Jelena; Radenković, Milena; Vasiljević, Perica; Ignjatović, Nenad

(Banja Luka : Academy of Sciences and Arts of the Republic of Srpska, 2023)

TY  - JOUR
AU  - Najman, Stevo
AU  - Stojanović, Sanja
AU  - Živković, Jelena
AU  - Najdanović, Jelena
AU  - Radenković, Milena
AU  - Vasiljević, Perica
AU  - Ignjatović, Nenad
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14751
AB  - Regenerative medicine (RM) exploits the innate potential of the human body to effectively repair and regenerate damaged tissues and organs with the help of various biomaterials. Tissue engineering (TE) makes it possible to replace damaged tissues and organs with new ones. Research in the field of biomaterials has significantly improved the area of RM and TE. Biomaterials are used as orthopedic, dental, cardiovascular implants, medical devices, in the fields of reconstructive and regenerative medicine, among others. Important preconditions for the biomaterial to be used for implantation are its biocompatibility and biofunctionality. Biomaterials should enable adhesion, migration, proliferation and differentiation of cells. The biological properties of biomaterials are a reflection of their physicochemical properties, such as internal architecture, surface characteristics and charge. Biomaterials used in tissue regeneration should mimic the natural structure of the extracellular matrix and represent a physiological microenvironment for normal cellular functions. These biomaterials should also have adequate biodegradability properties to facilitate the formation and growth of new tissue. Biomaterials for use in RM can be of natural or synthetic origin, polymers by structural properties, ceramic and composite type, and based on bioreactivity they can be bioinert or bioactive. In RM and TE, polymers of different classes, natural and synthetic, are used, which can be made as intelligent materials. The structure of hydrogels in the form of a porous network represents a good matrix for cell activity. Ceramic biomaterials based on hydroxyapatite (HAp) are selected for use in RM and TE, especially solid tissues. Properties, such as composition, particle size, material shape, porosity, surface charge, topography, etc., are relevant for the proper use of HAp materials. The properties of HAp allow modification of its structure, surface, particle size design at the micro and nano level, hybridization with polymers, metals, etc. which is very important for its applications. Designed micro-nanohybrid HAp structure is most similar to the bone structure, making the cell environment closest to natural. Bone tissue engineering (BTE) is based on the combined use of cells, osteostimulating (osteoinductive) factors and biomaterials as a scaffolds and carriers for bone regeneration and defects repair. In BTE adipose-derived mesenchymal stem cells (ADSCs) are often used that are induced in vitro towards osteogenic cells or endothelial cells, and freshly isolated stromal vascular fraction can also be used. Blood components (PRP, blood plasma or blood clot) can be included in the composition of the BTE construct as a source of osteoinductive factors. In vitro models and methods were used to examine the biocompatibility, immunomodulatory and regenerative potential of biomaterials, as well as their influence on cellular functions. After in vitro methods, and before clinical studies, various in vivo animal models are used to examine the regenerative potential of biomaterials, such as subcutaneous implantations and bone defects in tibia, femur and calvaria in experimental animals (mouse, rat, rabbit).
PB  - Banja Luka : Academy of Sciences and Arts of the Republic of Srpska
T2  - Contemporary Materials
T1  - Applications of biomaterials in regenerative medicine and tissue engineering – concepts and perspective
VL  - 14
IS  - 1
DO  - 10.7251/COMEN2301001N
UR  - https://hdl.handle.net/21.15107/rcub_dais_14751
ER  - 
@article{
author = "Najman, Stevo and Stojanović, Sanja and Živković, Jelena and Najdanović, Jelena and Radenković, Milena and Vasiljević, Perica and Ignjatović, Nenad",
year = "2023",
abstract = "Regenerative medicine (RM) exploits the innate potential of the human body to effectively repair and regenerate damaged tissues and organs with the help of various biomaterials. Tissue engineering (TE) makes it possible to replace damaged tissues and organs with new ones. Research in the field of biomaterials has significantly improved the area of RM and TE. Biomaterials are used as orthopedic, dental, cardiovascular implants, medical devices, in the fields of reconstructive and regenerative medicine, among others. Important preconditions for the biomaterial to be used for implantation are its biocompatibility and biofunctionality. Biomaterials should enable adhesion, migration, proliferation and differentiation of cells. The biological properties of biomaterials are a reflection of their physicochemical properties, such as internal architecture, surface characteristics and charge. Biomaterials used in tissue regeneration should mimic the natural structure of the extracellular matrix and represent a physiological microenvironment for normal cellular functions. These biomaterials should also have adequate biodegradability properties to facilitate the formation and growth of new tissue. Biomaterials for use in RM can be of natural or synthetic origin, polymers by structural properties, ceramic and composite type, and based on bioreactivity they can be bioinert or bioactive. In RM and TE, polymers of different classes, natural and synthetic, are used, which can be made as intelligent materials. The structure of hydrogels in the form of a porous network represents a good matrix for cell activity. Ceramic biomaterials based on hydroxyapatite (HAp) are selected for use in RM and TE, especially solid tissues. Properties, such as composition, particle size, material shape, porosity, surface charge, topography, etc., are relevant for the proper use of HAp materials. The properties of HAp allow modification of its structure, surface, particle size design at the micro and nano level, hybridization with polymers, metals, etc. which is very important for its applications. Designed micro-nanohybrid HAp structure is most similar to the bone structure, making the cell environment closest to natural. Bone tissue engineering (BTE) is based on the combined use of cells, osteostimulating (osteoinductive) factors and biomaterials as a scaffolds and carriers for bone regeneration and defects repair. In BTE adipose-derived mesenchymal stem cells (ADSCs) are often used that are induced in vitro towards osteogenic cells or endothelial cells, and freshly isolated stromal vascular fraction can also be used. Blood components (PRP, blood plasma or blood clot) can be included in the composition of the BTE construct as a source of osteoinductive factors. In vitro models and methods were used to examine the biocompatibility, immunomodulatory and regenerative potential of biomaterials, as well as their influence on cellular functions. After in vitro methods, and before clinical studies, various in vivo animal models are used to examine the regenerative potential of biomaterials, such as subcutaneous implantations and bone defects in tibia, femur and calvaria in experimental animals (mouse, rat, rabbit).",
publisher = "Banja Luka : Academy of Sciences and Arts of the Republic of Srpska",
journal = "Contemporary Materials",
title = "Applications of biomaterials in regenerative medicine and tissue engineering – concepts and perspective",
volume = "14",
number = "1",
doi = "10.7251/COMEN2301001N",
url = "https://hdl.handle.net/21.15107/rcub_dais_14751"
}
Najman, S., Stojanović, S., Živković, J., Najdanović, J., Radenković, M., Vasiljević, P.,& Ignjatović, N.. (2023). Applications of biomaterials in regenerative medicine and tissue engineering – concepts and perspective. in Contemporary Materials
Banja Luka : Academy of Sciences and Arts of the Republic of Srpska., 14(1).
https://doi.org/10.7251/COMEN2301001N
https://hdl.handle.net/21.15107/rcub_dais_14751
Najman S, Stojanović S, Živković J, Najdanović J, Radenković M, Vasiljević P, Ignjatović N. Applications of biomaterials in regenerative medicine and tissue engineering – concepts and perspective. in Contemporary Materials. 2023;14(1).
doi:10.7251/COMEN2301001N
https://hdl.handle.net/21.15107/rcub_dais_14751 .
Najman, Stevo, Stojanović, Sanja, Živković, Jelena, Najdanović, Jelena, Radenković, Milena, Vasiljević, Perica, Ignjatović, Nenad, "Applications of biomaterials in regenerative medicine and tissue engineering – concepts and perspective" in Contemporary Materials, 14, no. 1 (2023),
https://doi.org/10.7251/COMEN2301001N .,
https://hdl.handle.net/21.15107/rcub_dais_14751 .

Properties of Hydroxyapatite-Based Biomaterials Important for Interactions with Cells and Tissues

Živković, Jelena M.; Ignjatović, Nenad; Najman, Stevo

(Springer International Publishing, 2023)

TY  - CHAP
AU  - Živković, Jelena M.
AU  - Ignjatović, Nenad
AU  - Najman, Stevo
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/13683
AB  - Mammal bone tissue is mainly composed of an inorganic component consisting of calcium phosphate (CaPCalcium phosphateCaP) ceramics, predominantly calcium hydroxyapatiteCalcium phosphatecalcium hydroxyapatite (HAp)Calcium phosphateHAp, in addition to the organic component. Properties of HAp enable the modification of its structure, surface, design of particle size at the micro and the macro levels, hybridization with polymers, metals, etc., which makes it a very important biomaterial in the future as well. The properties of HAp can be improved by combination with a large number of therapeuticBiomaterialtherapeuticCalcium phosphateBioceramics and/or diagnosticBiomaterialdiagnosticBioceramicsCalcium phosphate agents. CaP and HAp occupy a significant place in the research of different types of multifunctionalMaterialsmultifunctional and hybridMaterialshybrid materials for potential application in diagnostic, preventiveMaterialspreventive, oncological, reconstructiveMaterialsreconstructiveRegenerative medicine and regenerative medicine. There are numerous data on the properties of HAp and HAp-based biomaterials relevant to their use, such as composition, particle sizeBiomaterialparticle sizeBioceramicsCalcium phosphate, material shape, porosity, surface charge, topography, etc. This chapter also discusses the different properties of hydroxyapatite and hydroxyapatite-based biomaterials important for interactionBiomaterialinteractionTissueCell with cells and tissues. In addition to references to literature data, the results of our research with different hydroxyapatite-based biomaterials in different in vitroModelsin vitroCellMethod and in vivoModelsin vivoMethodTissue engineering experimentalModelsexperimental modelsModels in the field of bone tissue engineeringTissue engineeringbone tissue engineering and regenerative medicine are presented.
PB  - Springer International Publishing
T2  - Bioceramics, Biomimetic and Other Compatible Materials Features for Medical Applications
T1  - Properties of Hydroxyapatite-Based Biomaterials Important for Interactions with Cells and Tissues
SP  - 115
EP  - 135
DO  - 10.1007/978-3-031-17269-4_6
UR  - https://hdl.handle.net/21.15107/rcub_dais_13683
ER  - 
@inbook{
author = "Živković, Jelena M. and Ignjatović, Nenad and Najman, Stevo",
year = "2023",
abstract = "Mammal bone tissue is mainly composed of an inorganic component consisting of calcium phosphate (CaPCalcium phosphateCaP) ceramics, predominantly calcium hydroxyapatiteCalcium phosphatecalcium hydroxyapatite (HAp)Calcium phosphateHAp, in addition to the organic component. Properties of HAp enable the modification of its structure, surface, design of particle size at the micro and the macro levels, hybridization with polymers, metals, etc., which makes it a very important biomaterial in the future as well. The properties of HAp can be improved by combination with a large number of therapeuticBiomaterialtherapeuticCalcium phosphateBioceramics and/or diagnosticBiomaterialdiagnosticBioceramicsCalcium phosphate agents. CaP and HAp occupy a significant place in the research of different types of multifunctionalMaterialsmultifunctional and hybridMaterialshybrid materials for potential application in diagnostic, preventiveMaterialspreventive, oncological, reconstructiveMaterialsreconstructiveRegenerative medicine and regenerative medicine. There are numerous data on the properties of HAp and HAp-based biomaterials relevant to their use, such as composition, particle sizeBiomaterialparticle sizeBioceramicsCalcium phosphate, material shape, porosity, surface charge, topography, etc. This chapter also discusses the different properties of hydroxyapatite and hydroxyapatite-based biomaterials important for interactionBiomaterialinteractionTissueCell with cells and tissues. In addition to references to literature data, the results of our research with different hydroxyapatite-based biomaterials in different in vitroModelsin vitroCellMethod and in vivoModelsin vivoMethodTissue engineering experimentalModelsexperimental modelsModels in the field of bone tissue engineeringTissue engineeringbone tissue engineering and regenerative medicine are presented.",
publisher = "Springer International Publishing",
journal = "Bioceramics, Biomimetic and Other Compatible Materials Features for Medical Applications",
booktitle = "Properties of Hydroxyapatite-Based Biomaterials Important for Interactions with Cells and Tissues",
pages = "115-135",
doi = "10.1007/978-3-031-17269-4_6",
url = "https://hdl.handle.net/21.15107/rcub_dais_13683"
}
Živković, J. M., Ignjatović, N.,& Najman, S.. (2023). Properties of Hydroxyapatite-Based Biomaterials Important for Interactions with Cells and Tissues. in Bioceramics, Biomimetic and Other Compatible Materials Features for Medical Applications
Springer International Publishing., 115-135.
https://doi.org/10.1007/978-3-031-17269-4_6
https://hdl.handle.net/21.15107/rcub_dais_13683
Živković JM, Ignjatović N, Najman S. Properties of Hydroxyapatite-Based Biomaterials Important for Interactions with Cells and Tissues. in Bioceramics, Biomimetic and Other Compatible Materials Features for Medical Applications. 2023;:115-135.
doi:10.1007/978-3-031-17269-4_6
https://hdl.handle.net/21.15107/rcub_dais_13683 .
Živković, Jelena M., Ignjatović, Nenad, Najman, Stevo, "Properties of Hydroxyapatite-Based Biomaterials Important for Interactions with Cells and Tissues" in Bioceramics, Biomimetic and Other Compatible Materials Features for Medical Applications (2023):115-135,
https://doi.org/10.1007/978-3-031-17269-4_6 .,
https://hdl.handle.net/21.15107/rcub_dais_13683 .
1

Influence of synthesized calcium phosphate-based nanomaterial on proliferation of dental pulp stem cells in various in vitro conditions

Tomić, Milica; Stojanović, Sanja; Ignjatović, Nenad; Najman, Stevo

(Belgrade : Institute of Technical Sciences of SASA, 2023)

TY  - CONF
AU  - Tomić, Milica
AU  - Stojanović, Sanja
AU  - Ignjatović, Nenad
AU  - Najman, Stevo
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15642
AB  - Dental pulp stem cells (DPSCs) are mesenchymal stem cells that are easy to obtain from any kind of discarded teeth and have the ability to differentiate into several cell types which makes them very popular in researches regarding regenerative dentistry. In recent years, there is an emerging trend of the use of nanomaterials in medicine and dentistry and they become very attractive tool for the treatment of bone tissue defects but also as a carriers of bioactive molecules. Before clinical application, thorough preclinical studies should be conducted regarding biocompatibility and biofunctionality of synthesized nanomaterials. Therefore, the aim of this study was to examine the influence of synthesized nanomaterial, biphasic calcium phosphate coated with poly-D,L-lactide-co-glycolide (CP/PLGA), on the proliferation of DPSCs during osteogenic differentiation in cell culture in vitro. We isolated the cells from the mature healthy teeth by outgrowth of the cells from undigested pulp pieces during culturing, in standard cell culture conditions. Cells were incubated with two concentrations of CP/PLGA nanoparticles in standard cell culture media and media for osteogenic differentiation. Cell proliferation rate was assessed using MTT and Crystal violet test after one, three and seven days of cell culturing. The results showed time- and concentration-dependent differences in DPSCs proliferation in the presence of nanomaterial. Differences in cell proliferation were noticed between osteogenic and standard cell culture media as well as in results obtained by performed tests. Increased cell proliferation was observed over time in both media but this effect was dependent on nanomaterial concentration. Calcium phosphate-based nanomaterials and DPSCs, based on observed cell materials interactions, could be a promising tool in bone tissue regeneration and further studies using in vitro as well as in vivo models should be conducted to fully unravel all of its potential.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
T1  - Influence of synthesized calcium phosphate-based nanomaterial on proliferation of dental pulp stem cells in various in vitro conditions
SP  - 11
EP  - 11
UR  - https://hdl.handle.net/21.15107/rcub_dais_15642
ER  - 
@conference{
author = "Tomić, Milica and Stojanović, Sanja and Ignjatović, Nenad and Najman, Stevo",
year = "2023",
abstract = "Dental pulp stem cells (DPSCs) are mesenchymal stem cells that are easy to obtain from any kind of discarded teeth and have the ability to differentiate into several cell types which makes them very popular in researches regarding regenerative dentistry. In recent years, there is an emerging trend of the use of nanomaterials in medicine and dentistry and they become very attractive tool for the treatment of bone tissue defects but also as a carriers of bioactive molecules. Before clinical application, thorough preclinical studies should be conducted regarding biocompatibility and biofunctionality of synthesized nanomaterials. Therefore, the aim of this study was to examine the influence of synthesized nanomaterial, biphasic calcium phosphate coated with poly-D,L-lactide-co-glycolide (CP/PLGA), on the proliferation of DPSCs during osteogenic differentiation in cell culture in vitro. We isolated the cells from the mature healthy teeth by outgrowth of the cells from undigested pulp pieces during culturing, in standard cell culture conditions. Cells were incubated with two concentrations of CP/PLGA nanoparticles in standard cell culture media and media for osteogenic differentiation. Cell proliferation rate was assessed using MTT and Crystal violet test after one, three and seven days of cell culturing. The results showed time- and concentration-dependent differences in DPSCs proliferation in the presence of nanomaterial. Differences in cell proliferation were noticed between osteogenic and standard cell culture media as well as in results obtained by performed tests. Increased cell proliferation was observed over time in both media but this effect was dependent on nanomaterial concentration. Calcium phosphate-based nanomaterials and DPSCs, based on observed cell materials interactions, could be a promising tool in bone tissue regeneration and further studies using in vitro as well as in vivo models should be conducted to fully unravel all of its potential.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia",
title = "Influence of synthesized calcium phosphate-based nanomaterial on proliferation of dental pulp stem cells in various in vitro conditions",
pages = "11-11",
url = "https://hdl.handle.net/21.15107/rcub_dais_15642"
}
Tomić, M., Stojanović, S., Ignjatović, N.,& Najman, S.. (2023). Influence of synthesized calcium phosphate-based nanomaterial on proliferation of dental pulp stem cells in various in vitro conditions. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 11-11.
https://hdl.handle.net/21.15107/rcub_dais_15642
Tomić M, Stojanović S, Ignjatović N, Najman S. Influence of synthesized calcium phosphate-based nanomaterial on proliferation of dental pulp stem cells in various in vitro conditions. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia. 2023;:11-11.
https://hdl.handle.net/21.15107/rcub_dais_15642 .
Tomić, Milica, Stojanović, Sanja, Ignjatović, Nenad, Najman, Stevo, "Influence of synthesized calcium phosphate-based nanomaterial on proliferation of dental pulp stem cells in various in vitro conditions" in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia (2023):11-11,
https://hdl.handle.net/21.15107/rcub_dais_15642 .

Одговор ткива на различите имплантиране биоматеријале у моделима in vivo

Živković, Jelena M.; Radenković, Milena; Stojanović, Sanja; Najdanović, Jelena; Cvetković, Vladimir; Vukelić Nikolić, Marija; Vučković, Ivica; Ignjatović, Nenad; Najman, Stevo

(Banja Luka : ANURS, 2022)

TY  - CONF
AU  - Živković, Jelena M.
AU  - Radenković, Milena
AU  - Stojanović, Sanja
AU  - Najdanović, Jelena
AU  - Cvetković, Vladimir
AU  - Vukelić Nikolić, Marija
AU  - Vučković, Ivica
AU  - Ignjatović, Nenad
AU  - Najman, Stevo
PY  - 2022
UR  - http://informatikaubiomedicini.ekonferencije.com/presentation/paperpresentation/679/6441
UR  - https://dais.sanu.ac.rs/123456789/13655
AB  - Данашњи приступ репарацији и регенерацији ткива често подразумева употребу различитих биоматеријала, самостално или у комбинацији са ћелијама и/или факторима раста. Сви материјали, без обзира да ли су природног порекла или синтетисани, изазивају реакцију околног ткива након имплантације. Ова реакција подразумева низ повезаних догађаја од којих коначно зависи да ли ће имплантирани материјал бити добро прихваћен и обавити своју примарну улогу. Сваки материјал за организам представља страно тело и иницира пролазну инфламаторну реакцију, чија дужина трајања и интензитет умногоме одређују његову даљу судбину. На то утиче хемијски састав материјала, величина и облик његових гранула, порозност, компактност, као и степен биодеградабилности. Тако, судбина материјала може кренути једним од два пута: ка доброј интеграцији са околним ткивом, подршци ћелијама са којима интерагује и, код биодеградабилних материјала, замени здравим, функционалним ткивом, или ће пак изазвати снажан и продужен инфламаторни одговор који резултује потпуном изолацијом материјала од остатка ткива дебелом фиброзном капсулом. In vivo испитивања одговора ткива на имплантирани биоматеријал подразумевају истраживања на различитим анималним моделима и у различитим ткивима, са ортопичним или ектопичним имплантацијама. У овом раду ће бити дат преглед наших in vivo истраживања на различитим моделима имплантација. Користили смо ортопичне моделе за формирање кости код пацова и кунића и моделе супкутаних имплантација различитих биоматеријала мишевима и пацовима. За анализу импланата и околног ткива у временским периодима раног и касног одговора коришћене су бројне методе као што су хистолошка бојења, хистоморфометрија, имунохистохемија, СЕМ, радиографске методе, анализа специфичне експресије гена и друге. In vivo анимални модели у сврху претклиничких испитивања важни су за добијање смерница за клиничку примену.
AB  - Today's approach to tissue repair and regeneration often involves application of different biomaterials, alone or in combination with cells and/or growth factors. All materials, regardless of whether they are of natural origin or synthesized, cause a reaction in the surrounding tissue after implantation. This reaction involves a series of related events on which ultimately depends whether the implanted material will be well accepted and perform its primary role. Each material represents a foreign body for the organism and initiates a transient inflammatory reaction, the duration and intensity of which largely determine materil's further fate. Inflammatory reaction is influenced by material's chemical composition, the size and shape of its granules, porosity, compactness, as well as the degree of material's biodegradability. Thus, the fate of the material can go one of two ways: towards good integration with the surrounding tissue, supporting the cells with which it interacts and, in the case of biodegradable materials, replacement by healthy, functional tissue, or it will cause a strong inflammatory response resulting in the complete isolation of the material from the rest of the tissue with thick fibrous capsule. In vivo research of tissue response to implanted biomaterial involves investigation in different animal models and in different tissues, with orthotopic or ectopic implantations. We used orthotopic models for bone formation in rats and rabbits and models of subcutaneous implantation of various biomaterials in mice and rats. Numerous methods were used for the analysis of implants and surrounding tissue in the time periods of early and late response, such as histological staining, histomorphometry, immunohistochemistry, SEM, radiographic methods, analysis of specific gene expression and others. In vivo animal models for the purpose of preclinical studies are important in order to obtain guidelines for clinical application.
PB  - Banja Luka : ANURS
C3  - Contemporary Materials 2022 - Савремени материјали, 8-9. 9. 2022.
T1  - Одговор ткива на различите имплантиране биоматеријале у моделима in vivo
T1  - Tissue response to different implanted biomaterials in models in vivo
UR  - https://hdl.handle.net/21.15107/rcub_dais_13655
ER  - 
@conference{
author = "Živković, Jelena M. and Radenković, Milena and Stojanović, Sanja and Najdanović, Jelena and Cvetković, Vladimir and Vukelić Nikolić, Marija and Vučković, Ivica and Ignjatović, Nenad and Najman, Stevo",
year = "2022",
abstract = "Данашњи приступ репарацији и регенерацији ткива често подразумева употребу различитих биоматеријала, самостално или у комбинацији са ћелијама и/или факторима раста. Сви материјали, без обзира да ли су природног порекла или синтетисани, изазивају реакцију околног ткива након имплантације. Ова реакција подразумева низ повезаних догађаја од којих коначно зависи да ли ће имплантирани материјал бити добро прихваћен и обавити своју примарну улогу. Сваки материјал за организам представља страно тело и иницира пролазну инфламаторну реакцију, чија дужина трајања и интензитет умногоме одређују његову даљу судбину. На то утиче хемијски састав материјала, величина и облик његових гранула, порозност, компактност, као и степен биодеградабилности. Тако, судбина материјала може кренути једним од два пута: ка доброј интеграцији са околним ткивом, подршци ћелијама са којима интерагује и, код биодеградабилних материјала, замени здравим, функционалним ткивом, или ће пак изазвати снажан и продужен инфламаторни одговор који резултује потпуном изолацијом материјала од остатка ткива дебелом фиброзном капсулом. In vivo испитивања одговора ткива на имплантирани биоматеријал подразумевају истраживања на различитим анималним моделима и у различитим ткивима, са ортопичним или ектопичним имплантацијама. У овом раду ће бити дат преглед наших in vivo истраживања на различитим моделима имплантација. Користили смо ортопичне моделе за формирање кости код пацова и кунића и моделе супкутаних имплантација различитих биоматеријала мишевима и пацовима. За анализу импланата и околног ткива у временским периодима раног и касног одговора коришћене су бројне методе као што су хистолошка бојења, хистоморфометрија, имунохистохемија, СЕМ, радиографске методе, анализа специфичне експресије гена и друге. In vivo анимални модели у сврху претклиничких испитивања важни су за добијање смерница за клиничку примену., Today's approach to tissue repair and regeneration often involves application of different biomaterials, alone or in combination with cells and/or growth factors. All materials, regardless of whether they are of natural origin or synthesized, cause a reaction in the surrounding tissue after implantation. This reaction involves a series of related events on which ultimately depends whether the implanted material will be well accepted and perform its primary role. Each material represents a foreign body for the organism and initiates a transient inflammatory reaction, the duration and intensity of which largely determine materil's further fate. Inflammatory reaction is influenced by material's chemical composition, the size and shape of its granules, porosity, compactness, as well as the degree of material's biodegradability. Thus, the fate of the material can go one of two ways: towards good integration with the surrounding tissue, supporting the cells with which it interacts and, in the case of biodegradable materials, replacement by healthy, functional tissue, or it will cause a strong inflammatory response resulting in the complete isolation of the material from the rest of the tissue with thick fibrous capsule. In vivo research of tissue response to implanted biomaterial involves investigation in different animal models and in different tissues, with orthotopic or ectopic implantations. We used orthotopic models for bone formation in rats and rabbits and models of subcutaneous implantation of various biomaterials in mice and rats. Numerous methods were used for the analysis of implants and surrounding tissue in the time periods of early and late response, such as histological staining, histomorphometry, immunohistochemistry, SEM, radiographic methods, analysis of specific gene expression and others. In vivo animal models for the purpose of preclinical studies are important in order to obtain guidelines for clinical application.",
publisher = "Banja Luka : ANURS",
journal = "Contemporary Materials 2022 - Савремени материјали, 8-9. 9. 2022.",
title = "Одговор ткива на различите имплантиране биоматеријале у моделима in vivo, Tissue response to different implanted biomaterials in models in vivo",
url = "https://hdl.handle.net/21.15107/rcub_dais_13655"
}
Živković, J. M., Radenković, M., Stojanović, S., Najdanović, J., Cvetković, V., Vukelić Nikolić, M., Vučković, I., Ignjatović, N.,& Najman, S.. (2022). Одговор ткива на различите имплантиране биоматеријале у моделима in vivo. in Contemporary Materials 2022 - Савремени материјали, 8-9. 9. 2022.
Banja Luka : ANURS..
https://hdl.handle.net/21.15107/rcub_dais_13655
Živković JM, Radenković M, Stojanović S, Najdanović J, Cvetković V, Vukelić Nikolić M, Vučković I, Ignjatović N, Najman S. Одговор ткива на различите имплантиране биоматеријале у моделима in vivo. in Contemporary Materials 2022 - Савремени материјали, 8-9. 9. 2022.. 2022;.
https://hdl.handle.net/21.15107/rcub_dais_13655 .
Živković, Jelena M., Radenković, Milena, Stojanović, Sanja, Najdanović, Jelena, Cvetković, Vladimir, Vukelić Nikolić, Marija, Vučković, Ivica, Ignjatović, Nenad, Najman, Stevo, "Одговор ткива на различите имплантиране биоматеријале у моделима in vivo" in Contemporary Materials 2022 - Савремени материјали, 8-9. 9. 2022. (2022),
https://hdl.handle.net/21.15107/rcub_dais_13655 .

Интеракција ћелија са различитим биоматеријалима in vitro и методе карактеризације

Stojanović, Sanja; Najdanović, Jelena; Mitić, Žarko; Vasiljević, Perica; Ignjatović, Nenad; Najman, Stevo

(Banja Luka : ANURS, 2022)

TY  - CONF
AU  - Stojanović, Sanja
AU  - Najdanović, Jelena
AU  - Mitić, Žarko
AU  - Vasiljević, Perica
AU  - Ignjatović, Nenad
AU  - Najman, Stevo
PY  - 2022
UR  - http://informatikaubiomedicini.ekonferencije.com/presentation/paperpresentation/679/6440
UR  - https://dais.sanu.ac.rs/123456789/13654
AB  - Тестирање биоматеријала намењених за примену у регенеративној медицини на ћелијским моделима in vitro је неопходан први корак у циљу процене биокомпатибилности биоматеријала али и њихове биофункционалности. Постоје различити начини тестирања биоматеријала, као и различити ћелијски модели на којима се врши тестирање. Одабир адекватног ћелијског модела врши се на основу врсте биоматеријала и његове потенцијалне примене а тестирање се врши најпре стандардним тестовима као што су тестови цитотоксичности и генотоксичности а затим се испитују друге биолошке карактеристике као што су нпр. способност биоматеријала да индукује диференцијацију ћелија у одређени тип или способност активације макрофага ка одређеном фенотипу и индукција њиховог одговора ин витро, и многе друге. У овом раду ће бити преглед резултата наших досадашњих истраживања у области карактеризације биоматеријала и испитивања на ћелијским моделима in vitro. Испитивали смо биоматеријале намењене за регенерацију тврдих ткива, нпр. материјали на бази хидроксиапатита, калцијум фосфата, природног и синтетског порекла, тако и биоматеријале за регенерацију меких ткива, нпр. материјали на бази колагена или других полимера како природног тако и синтетског порекла. Да би се побољшала биофункционалност биоматеријала често им се додају биоактивне супстанце или њихове комбинације, а материјали могу бити у различитим облицима, у виду скафолда, у виду гранула, нано- или микро- димензија, мембрана и разним другим, при чему облик материјала утиче и на одабир ћелијског модела који се користи за тестирање. За карактеризацију биматеријала користили смо методе као што су SEM, EDX, FTIR и друге. Рађени су и тестови цитотоксичности, генотоксичности, пролиферације, миграције, диференцијације, фагоцитозе и многи други, а биоматеријале смо тестирали у директном контакту са ћелијама и у индиректном контакту. Испитивали смо и промене биоматеријала након интеракције са ћелијама као и понашање биоматеријала у различитим условима in vitro.
AB  - Testing biomaterials intended for use in regenerative medicine on cell models in vitro is a necessary first step in order to assess the biocompatibility of biomaterials as well as their biofunctionality. There are different methods of testing biomaterials, as well as different cell models on which testing is performed. The selection of an adequate cell model is made based on the type of biomaterial and its potential application, and testing is performed first using standard tests such as cytotoxicity and genotoxicity tests, and then other biological characteristics are examined such as, for example, the ability of biomaterials to induce the differentiation of cells into a certain type or the ability to activate macrophages towards a certain phenotype and the induction of their response in vitro, and many others. This paper will present the results of our research in the field of characterization of biomaterials and examination on cell models in vitro. We examined biomaterials intended for the regeneration of hard tissues, e.g. materials based on hydroxyapatite, calcium phosphate, of natural and synthetic origin, as well as biomaterials for the regeneration of soft tissues, e.g. materials based on collagen or other polymers of both natural and synthetic origin. In order to improve the biofunctionality of biomaterials, bioactive substances or their combinations are often added, and the biomaterials can be in different forms, in the form of scaffolds, in the form of granules, nano- or micro-dimensions, membranes and many others, whereby the shape of the material also affects the selection of the cell model used for testing. To characterize bimaterials, we used methods such as SEM, EDX, FTIR and others. In addition to cytotoxicity and genotoxicity tests, we performed proliferation, migration, differentiation, phagocytosis and many other tests, and we tested biomaterials both in direct contact with cells and in indirect contact. We also examined changes in biomaterials after interaction with cells, as well as the behavior of biomaterials in various conditions in vitro.
PB  - Banja Luka : ANURS
C3  - Contemporary Materials 2022 - Савремени материјали, 8-9. 9. 2022.
T1  - Интеракција ћелија са различитим биоматеријалима in vitro и методе карактеризације
T1  - Interaction of cells with different biomaterials in vitro and methods of characterization
UR  - https://hdl.handle.net/21.15107/rcub_dais_13654
ER  - 
@conference{
author = "Stojanović, Sanja and Najdanović, Jelena and Mitić, Žarko and Vasiljević, Perica and Ignjatović, Nenad and Najman, Stevo",
year = "2022",
abstract = "Тестирање биоматеријала намењених за примену у регенеративној медицини на ћелијским моделима in vitro је неопходан први корак у циљу процене биокомпатибилности биоматеријала али и њихове биофункционалности. Постоје различити начини тестирања биоматеријала, као и различити ћелијски модели на којима се врши тестирање. Одабир адекватног ћелијског модела врши се на основу врсте биоматеријала и његове потенцијалне примене а тестирање се врши најпре стандардним тестовима као што су тестови цитотоксичности и генотоксичности а затим се испитују друге биолошке карактеристике као што су нпр. способност биоматеријала да индукује диференцијацију ћелија у одређени тип или способност активације макрофага ка одређеном фенотипу и индукција њиховог одговора ин витро, и многе друге. У овом раду ће бити преглед резултата наших досадашњих истраживања у области карактеризације биоматеријала и испитивања на ћелијским моделима in vitro. Испитивали смо биоматеријале намењене за регенерацију тврдих ткива, нпр. материјали на бази хидроксиапатита, калцијум фосфата, природног и синтетског порекла, тако и биоматеријале за регенерацију меких ткива, нпр. материјали на бази колагена или других полимера како природног тако и синтетског порекла. Да би се побољшала биофункционалност биоматеријала често им се додају биоактивне супстанце или њихове комбинације, а материјали могу бити у различитим облицима, у виду скафолда, у виду гранула, нано- или микро- димензија, мембрана и разним другим, при чему облик материјала утиче и на одабир ћелијског модела који се користи за тестирање. За карактеризацију биматеријала користили смо методе као што су SEM, EDX, FTIR и друге. Рађени су и тестови цитотоксичности, генотоксичности, пролиферације, миграције, диференцијације, фагоцитозе и многи други, а биоматеријале смо тестирали у директном контакту са ћелијама и у индиректном контакту. Испитивали смо и промене биоматеријала након интеракције са ћелијама као и понашање биоматеријала у различитим условима in vitro., Testing biomaterials intended for use in regenerative medicine on cell models in vitro is a necessary first step in order to assess the biocompatibility of biomaterials as well as their biofunctionality. There are different methods of testing biomaterials, as well as different cell models on which testing is performed. The selection of an adequate cell model is made based on the type of biomaterial and its potential application, and testing is performed first using standard tests such as cytotoxicity and genotoxicity tests, and then other biological characteristics are examined such as, for example, the ability of biomaterials to induce the differentiation of cells into a certain type or the ability to activate macrophages towards a certain phenotype and the induction of their response in vitro, and many others. This paper will present the results of our research in the field of characterization of biomaterials and examination on cell models in vitro. We examined biomaterials intended for the regeneration of hard tissues, e.g. materials based on hydroxyapatite, calcium phosphate, of natural and synthetic origin, as well as biomaterials for the regeneration of soft tissues, e.g. materials based on collagen or other polymers of both natural and synthetic origin. In order to improve the biofunctionality of biomaterials, bioactive substances or their combinations are often added, and the biomaterials can be in different forms, in the form of scaffolds, in the form of granules, nano- or micro-dimensions, membranes and many others, whereby the shape of the material also affects the selection of the cell model used for testing. To characterize bimaterials, we used methods such as SEM, EDX, FTIR and others. In addition to cytotoxicity and genotoxicity tests, we performed proliferation, migration, differentiation, phagocytosis and many other tests, and we tested biomaterials both in direct contact with cells and in indirect contact. We also examined changes in biomaterials after interaction with cells, as well as the behavior of biomaterials in various conditions in vitro.",
publisher = "Banja Luka : ANURS",
journal = "Contemporary Materials 2022 - Савремени материјали, 8-9. 9. 2022.",
title = "Интеракција ћелија са различитим биоматеријалима in vitro и методе карактеризације, Interaction of cells with different biomaterials in vitro and methods of characterization",
url = "https://hdl.handle.net/21.15107/rcub_dais_13654"
}
Stojanović, S., Najdanović, J., Mitić, Ž., Vasiljević, P., Ignjatović, N.,& Najman, S.. (2022). Интеракција ћелија са различитим биоматеријалима in vitro и методе карактеризације. in Contemporary Materials 2022 - Савремени материјали, 8-9. 9. 2022.
Banja Luka : ANURS..
https://hdl.handle.net/21.15107/rcub_dais_13654
Stojanović S, Najdanović J, Mitić Ž, Vasiljević P, Ignjatović N, Najman S. Интеракција ћелија са различитим биоматеријалима in vitro и методе карактеризације. in Contemporary Materials 2022 - Савремени материјали, 8-9. 9. 2022.. 2022;.
https://hdl.handle.net/21.15107/rcub_dais_13654 .
Stojanović, Sanja, Najdanović, Jelena, Mitić, Žarko, Vasiljević, Perica, Ignjatović, Nenad, Najman, Stevo, "Интеракција ћелија са различитим биоматеријалима in vitro и методе карактеризације" in Contemporary Materials 2022 - Савремени материјали, 8-9. 9. 2022. (2022),
https://hdl.handle.net/21.15107/rcub_dais_13654 .