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Mughal A, Gillani SMH, Ahmed S, Fatima D, Hussain R, Manzur J, Nawaz MH, Minhas B, Shoaib Butt M, Bodaghi M, Ur Rehman MA. 3D-printed polyether-ether ketone/carboxymethyl cellulose scaffolds coated with Zn-Mn doped mesoporous bioactive glass nanoparticles. J Mech Behav Biomed Mater 2024; 156:106581. [PMID: 38776740 DOI: 10.1016/j.jmbbm.2024.106581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/07/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024]
Abstract
Patient-specific fabrication of scaffold/implant requires an engineering approach to manufacture the ideal scaffold. Herein, we design and 3D print scaffolds comprised of polyether-ether-ketone (PEEK) and sodium-carboxymethyl cellulose (Na-CMC). The fabricated scaffold was dip coated with Zn and Mn doped bioactive glass nanoparticles (Zn-Mn MBGNs). The synthesized ink exhibit suitable shear-thinning behavior for direct ink write (DIW) 3D printing. The scaffolds were crafted with precision, featuring 85% porosity, 0.3 mm layer height, and 1.5 mm/s printing speed at room temperature. Scanning electron microscopy images reveal a well-defined scaffold with an average pore size of 600 ± 30 μm. The energy dispersive X-ray spectroscopy analysis confirmed a well dispersed/uniform coating of Zn-Mn MBGNs on the PEEK/Na-CMC scaffold. Fourier transform infrared spectroscopy approved the presence of PEEK, CMC, and Zn-Mn MBGNs. The tensile test revealed a Young's modulus of 2.05 GPa. Antibacterial assays demonstrate inhibition zone against Staphylococcus aureus and Escherichia Coli strains. Chick Chorioallantoic Membrane assays also present significant angiogenesis potential, owing to the antigenic nature of Zn-Mn MBGNs. WST-8 cell viability assays depicted cell proliferation, with a 103% viability after 7 days of culture. This study suggests that the PEEK/Na-CMC scaffolds coated with Zn-Mn MBGNs are an excellent candidate for osteoporotic fracture treatment. Thus, the fabricated scaffold can offer multifaceted properties for enhanced patient outcomes in the bone tissue regeneration.
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Affiliation(s)
- Awab Mughal
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan; Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan
| | - Syed Muneeb Haider Gillani
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan; Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan
| | - Sheraz Ahmed
- Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan
| | - Duaa Fatima
- Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan; School of Chemical and Material Engineering (SCME), National University of Sciences and Technology (NUST), H-12, Islamabad, 44000, Pakistan
| | - Rabia Hussain
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan
| | - Jawad Manzur
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan
| | - Muhammad Haseeb Nawaz
- Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan
| | - Badar Minhas
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan
| | - Muhammad Shoaib Butt
- School of Chemical and Material Engineering (SCME), National University of Sciences and Technology (NUST), H-12, Islamabad, 44000, Pakistan
| | - Mahdi Bodaghi
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK.
| | - Muhammad Atiq Ur Rehman
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan; Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan.
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2
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Valamvanos TF, Dereka X, Katifelis H, Gazouli M, Lagopati N. Recent Advances in Scaffolds for Guided Bone Regeneration. Biomimetics (Basel) 2024; 9:153. [PMID: 38534838 DOI: 10.3390/biomimetics9030153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/28/2024] Open
Abstract
The rehabilitation of alveolar bone defects of moderate to severe size is often challenging. Currently, the therapeutic approaches used include, among others, the guided bone regeneration technique combined with various bone grafts. Although these techniques are widely applied, several limitations and complications have been reported such as morbidity, suboptimal graft/membrane resorption rate, low structural integrity, and dimensional stability. Thus, the development of biomimetic scaffolds with tailor-made characteristics that can modulate cell and tissue interaction may be a promising tool. This article presents a critical consideration in scaffold's design and development while also providing information on various fabrication methods of these nanosystems. Their utilization as delivery systems will also be mentioned.
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Affiliation(s)
- Theodoros-Filippos Valamvanos
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Xanthippi Dereka
- Department of Periodontology, School of Dentistry, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Hector Katifelis
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Maria Gazouli
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
- School of Science and Technology, Hellenic Open University, 26335 Patra, Greece
| | - Nefeli Lagopati
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Greece Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece
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Shahjin F, Patel M, Hasan M, Cohen JD, Islam F, Ashaduzzaman M, Nayan MU, Subramaniam M, Zhou Y, Andreu I, Gendelman HE, Kevadiya BD. Development of a porous layer-by-layer microsphere with branched aliphatic hydrocarbon porogens. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023; 48:102644. [PMID: 36549555 PMCID: PMC10460474 DOI: 10.1016/j.nano.2022.102644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/22/2022] [Accepted: 12/10/2022] [Indexed: 12/24/2022]
Abstract
Porous polymer microspheres are employed in biotherapeutics, tissue engineering, and regenerative medicine. Porosity dictates cargo carriage and release that are aligned with the polymer physicochemical properties. These include material tuning, biodegradation, and cargo encapsulation. How uniformity of pore size affects therapeutic delivery remains an area of active investigation. Herein, we characterize six branched aliphatic hydrocarbon-based porogen(s) produced to create pores in single and multilayered microspheres. The porogens are composed of biocompatible polycaprolactone, poly(lactic-co-glycolic acid), and polylactic acid polymers within porous multilayered microspheres. These serve as controlled effective drug and vaccine delivery platforms.
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Affiliation(s)
- Farah Shahjin
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Milankumar Patel
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Mahmudul Hasan
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jacob D Cohen
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Farhana Islam
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Md Ashaduzzaman
- Computer Science, University of Nebraska-Omaha, Omaha, NE, USA
| | - Mohammad Ullah Nayan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | | | - You Zhou
- Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Irene Andreu
- Department of Chemical Engineering, University of Rhode Island, Kingston, RI, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Bhavesh D Kevadiya
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
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Kumari S, Katiyar S, Darshna, Anand A, Singh D, Singh BN, Mallick SP, Mishra A, Srivastava P. Design strategies for composite matrix and multifunctional polymeric scaffolds with enhanced bioactivity for bone tissue engineering. Front Chem 2022; 10:1051678. [PMID: 36518978 PMCID: PMC9742444 DOI: 10.3389/fchem.2022.1051678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 11/14/2022] [Indexed: 09/19/2023] Open
Abstract
Over the past few decades, various bioactive material-based scaffolds were investigated and researchers across the globe are actively involved in establishing a potential state-of-the-art for bone tissue engineering applications, wherein several disciplines like clinical medicine, materials science, and biotechnology are involved. The present review article's main aim is to focus on repairing and restoring bone tissue defects by enhancing the bioactivity of fabricated bone tissue scaffolds and providing a suitable microenvironment for the bone cells to fasten the healing process. It deals with the various surface modification strategies and smart composite materials development that are involved in the treatment of bone tissue defects. Orthopaedic researchers and clinicians constantly focus on developing strategies that can naturally imitate not only the bone tissue architecture but also its functional properties to modulate cellular behaviour to facilitate bridging, callus formation and osteogenesis at critical bone defects. This review summarizes the currently available polymeric composite matrices and the methods to improve their bioactivity for bone tissue regeneration effectively.
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Affiliation(s)
- Shikha Kumari
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | - Soumya Katiyar
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | - Darshna
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | - Aditya Anand
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | - Divakar Singh
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | - Bhisham Narayan Singh
- Department of Ageing Research, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sarada Prasanna Mallick
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Andhra Pradesh, India
| | - Abha Mishra
- School of Biochemical Engineering, IIT BHU, Varanasi, India
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Abstract
Tissue engineering or tissue reconstruction/repair/regeneration may be considered as a guiding strategy in oral and maxillofacial surgery, as well as in endodontics, orthodontics, periodontics, and daily clinical practice. A wide range of techniques has been developed over the past years, from tissue grafts to the more recent and innovative regenerative procedures. Continuous research in the field of natural and artificial materials and biomaterials, as well as in advanced scaffold design strategies has been carried out. The focus has also been on various growth factors involved in dental tissue repair or reconstruction. Benefiting from the recent literature, this review paper illustrates current innovative strategies and technological approaches in oral and maxillofacial tissue engineering, trying to offer some information regarding the available scientific data and practical applications. After introducing tissue engineering aspects, an overview on additive manufacturing technologies will be provided, with a focus on the applications of superparamagnetic iron oxide nanoparticles in the biomedical field. The potential applications of magnetic fields and magnetic devices on the acceleration of orthodontic tooth movement will be analysed.
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Advancing Regenerative Medicine Through the Development of Scaffold, Cell Biology, Biomaterials and Strategies of Smart Material. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2021. [DOI: 10.1007/s40883-021-00227-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Smart gating porous particles as new carriers for drug delivery. Adv Drug Deliv Rev 2021; 174:425-446. [PMID: 33930490 DOI: 10.1016/j.addr.2021.04.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/12/2021] [Accepted: 04/23/2021] [Indexed: 12/13/2022]
Abstract
The design of smart drug delivery carriers has recently attracted great attention in the biomedical field. Smart carriers can specifically respond to physical and chemical changes in their environment, such as temperature, photoirradiation, ultrasound, magnetic field, pH, redox species, and biomolecules. This review summarizes recent advances in the integration of porous particles and stimuli-responsive gatekeepers for effective drug delivery. Their unique structural properties play an important role in facilitating the diffusion of drug molecules and cell attachment. Various techniques for fabricating porous materials, with their major advantages and limitations, are summarized. Smart gatekeepers provide advanced functions such as "open-close" switching by functionalized stimuli-responsive polymers on a particle's pores. These controlled delivery systems enable drugs to be targeted at specific rates, time programs, and sites of the human body. The gate structures, gating mechanisms, and controlled release mechanisms of each trigger are detailed. Current ongoing research and future trends in targeted drug delivery, tissue engineering, and regenerative medicine applications are highlighted.
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Tripathi S, Singh BN, Divakar S, Kumar G, Mallick SP, Srivastava P. Design and evaluation of ciprofloxacin loaded collagen chitosan oxygenating scaffold for skin tissue engineering. Biomed Mater 2021; 16:025021. [PMID: 33291087 DOI: 10.1088/1748-605x/abd1b8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hypoxia and sepsis are key concerns towards modern regenerative medicine. Oxygen generating biomaterials having antibacterial property aims to answer these concerns. Hypoxia promotes reactive oxygen species at the implant site that delays wound healing. Sepsis in wound also contributes to delay in wound healing. Therefore, scaffold with antibacterial property and oxygen-producing capacities have shown ability to promote wound healing. In the present study oxygen releasing, ciprofloxacin loaded collagen chitosan scaffold was fabricated for sustained oxygen delivery. Calcium peroxide (CPO) acted as a chemical oxygen source. Oxygen release pattern exhibited a sustained release of oxygen with uniform deposition of CPO on the scaffold. The drug release study shows a prolonged, continuous, and sustained release of ciprofloxacin. Cell culture studies depict that scaffold has suitable cell attachment and migration properties for fibroblasts. In vivo studies performed in the skin flip model visually shows better wound healing and less necrosis. Histological studies show the maintenance of tissue architecture and the deposition of collagen. The results demonstrate that the proposed CPO coated ciprofloxacin loaded collagen-chitosan scaffold can be a promising candidate for skin tissue engineering.
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Affiliation(s)
- Satyavrat Tripathi
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
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Matichescu A, Ardelean LC, Rusu LC, Craciun D, Bratu EA, Babucea M, Leretter M. Advanced Biomaterials and Techniques for Oral Tissue Engineering and Regeneration-A Review. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E5303. [PMID: 33238625 PMCID: PMC7700200 DOI: 10.3390/ma13225303] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 11/15/2020] [Accepted: 11/19/2020] [Indexed: 12/11/2022]
Abstract
The reconstruction or repair of oral and maxillofacial functionalities and aesthetics is a priority for patients affected by tooth loss, congenital defects, trauma deformities, or various dental diseases. Therefore, in dental medicine, tissue reconstruction represents a major interest in oral and maxillofacial surgery, periodontics, orthodontics, endodontics, and even daily clinical practice. The current clinical approaches involve a vast array of techniques ranging from the traditional use of tissue grafts to the most innovative regenerative procedures, such as tissue engineering. In recent decades, a wide range of both artificial and natural biomaterials and scaffolds, genes, stem cells isolated from the mouth area (dental follicle, deciduous teeth, periodontal ligament, dental pulp, salivary glands, and adipose tissue), and various growth factors have been tested in tissue engineering approaches in dentistry, with many being proven successful. However, to fully eliminate the problems of traditional bone and tissue reconstruction in dentistry, continuous research is needed. Based on a recent literature review, this paper creates a picture of current innovative strategies applying dental stem cells for tissue regeneration in different dental fields and maxillofacial surgery, and offers detailed information regarding the available scientific data and practical applications.
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Affiliation(s)
- Anamaria Matichescu
- Department of Preventive Dentistry, Community and Oral Health, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania;
| | - Lavinia Cosmina Ardelean
- Department of Technology of Materials and Devices in Dental Medicine, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
| | - Laura-Cristina Rusu
- Department of Oral Pathology, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (L.-C.R.); (D.C.); (M.B.)
| | - Dragos Craciun
- Department of Oral Pathology, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (L.-C.R.); (D.C.); (M.B.)
| | - Emanuel Adrian Bratu
- Department of Implant Supported Restorations, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
| | - Marius Babucea
- Department of Oral Pathology, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (L.-C.R.); (D.C.); (M.B.)
| | - Marius Leretter
- Department of Prosthodontics, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania;
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Kuriakose AE, Hu W, Nguyen KT, Menon JU. Scaffold-based lung tumor culture on porous PLGA microparticle substrates. PLoS One 2019; 14:e0217640. [PMID: 31150477 PMCID: PMC6544352 DOI: 10.1371/journal.pone.0217640] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/15/2019] [Indexed: 12/02/2022] Open
Abstract
Scaffold-based cancer cell culture techniques have been gaining prominence especially in the last two decades. These techniques can potentially overcome some of the limitations of current three-dimensional cell culture methods, such as uneven cell distribution, inadequate nutrient diffusion, and uncontrollable size of cell aggregates. Porous scaffolds can provide a convenient support for cell attachment, proliferation and migration, and also allows diffusion of oxygen, nutrients and waste. In this paper, a comparative study was done on porous poly (lactic-co-glycolic acid) (PLGA) microparticles prepared using three porogens—gelatin, sodium bicarbonate (SBC) or novel poly N-isopropylacrylamide [PNIPAAm] particles, as substrates for lung cancer cell culture. These fibronectin-coated, stable particles (19–42 μm) supported A549 cell attachment at an optimal cell seeding density of 250,000 cells/ mg of particles. PLGA-SBC porous particles had comparatively larger, more interconnected pores, and favored greater cell proliferation up to 9 days than their counterparts. This indicates that pore diameters and interconnectivity have direct implications on scaffold-based cell culture compared to substrates with minimally interconnected pores (PLGA-gelatin) or pores of uniform sizes (PLGA-PMPs). Therefore, PLGA-SBC-based tumor models were chosen for preliminary drug screening studies. The greater drug resistance observed in the lung cancer cells grown on porous particles compared to conventional cell monolayers agrees with previous literature, and indicates that the PLGA-SBC porous microparticle substrates are promising for in vitro tumor or tissue development.
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Affiliation(s)
- Aneetta E. Kuriakose
- Bioengineering Department, University of Texas at Arlington, Arlington, Texas, United States of America
- Graduate Biomedical Engineering Program, UT Southwestern Medical Center, Dallas, Texas, United States of America
| | - Wenjing Hu
- Progenitec Inc., Arlington, Texas, United States of America
| | - Kytai T. Nguyen
- Bioengineering Department, University of Texas at Arlington, Arlington, Texas, United States of America
- Graduate Biomedical Engineering Program, UT Southwestern Medical Center, Dallas, Texas, United States of America
- * E-mail: (KTN); (JUM)
| | - Jyothi U. Menon
- Bioengineering Department, University of Texas at Arlington, Arlington, Texas, United States of America
- Graduate Biomedical Engineering Program, UT Southwestern Medical Center, Dallas, Texas, United States of America
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island, United States of America
- * E-mail: (KTN); (JUM)
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Zhang K, Wang S, Zhou C, Cheng L, Gao X, Xie X, Sun J, Wang H, Weir MD, Reynolds MA, Zhang N, Bai Y, Xu HHK. Advanced smart biomaterials and constructs for hard tissue engineering and regeneration. Bone Res 2018; 6:31. [PMID: 30374416 PMCID: PMC6196224 DOI: 10.1038/s41413-018-0032-9] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 09/10/2018] [Accepted: 09/10/2018] [Indexed: 02/05/2023] Open
Abstract
Hard tissue repair and regeneration cost hundreds of billions of dollars annually worldwide, and the need has substantially increased as the population has aged. Hard tissues include bone and tooth structures that contain calcium phosphate minerals. Smart biomaterial-based tissue engineering and regenerative medicine methods have the exciting potential to meet this urgent need. Smart biomaterials and constructs refer to biomaterials and constructs that possess instructive/inductive or triggering/stimulating effects on cells and tissues by engineering the material's responsiveness to internal or external stimuli or have intelligently tailored properties and functions that can promote tissue repair and regeneration. The smart material-based approaches include smart scaffolds and stem cell constructs for bone tissue engineering; smart drug delivery systems to enhance bone regeneration; smart dental resins that respond to pH to protect tooth structures; smart pH-sensitive dental materials to selectively inhibit acid-producing bacteria; smart polymers to modulate biofilm species away from a pathogenic composition and shift towards a healthy composition; and smart materials to suppress biofilms and avoid drug resistance. These smart biomaterials can not only deliver and guide stem cells to improve tissue regeneration and deliver drugs and bioactive agents with spatially and temporarily controlled releases but can also modulate/suppress biofilms and combat infections in wound sites. The new generation of smart biomaterials provides exciting potential and is a promising opportunity to substantially enhance hard tissue engineering and regenerative medicine efficacy.
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Affiliation(s)
- Ke Zhang
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD USA
| | - Suping Wang
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD USA
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Deptartment of Cariology and Endodonics West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chenchen Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Deptartment of Cariology and Endodonics West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lei Cheng
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD USA
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Deptartment of Cariology and Endodonics West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xianling Gao
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD USA
- Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xianju Xie
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD USA
| | - Jirun Sun
- Volpe Research Center, American Dental Association Foundation, National Institute of Standards and Technology, Gaithersburg, MD USA
| | - Haohao Wang
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD USA
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Deptartment of Cariology and Endodonics West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Michael D. Weir
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD USA
| | - Mark A. Reynolds
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD USA
| | - Ning Zhang
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD USA
| | - Yuxing Bai
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China
| | - Hockin H. K. Xu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD USA
- Center for Stem Cell Biology & Regenerative Medicine, University of Maryland School of Medicine, Baltimore, MD USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD USA
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Gupta M, Aina A, Boukari Y, Doughty S, Morris A, Billa N. Effect of volume of porogens on the porosity of PLGA scaffolds in pH-controlled environment. Pharm Dev Technol 2017; 23:207-210. [DOI: 10.1080/10837450.2017.1304415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Manish Gupta
- Drug Delivery Laboratory, School of Pharmacy, University of Nottingham Malaysia Campus, Semenyih, Malaysia
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia
| | - Adeyinka Aina
- Drug Delivery Laboratory, School of Pharmacy, University of Nottingham Malaysia Campus, Semenyih, Malaysia
- Pharmaceutical Manufacturing Technology Centre, University of Limerick, Limerick, Ireland
| | - Yamina Boukari
- Drug Delivery Laboratory, School of Pharmacy, University of Nottingham Malaysia Campus, Semenyih, Malaysia
| | - Stephen Doughty
- Drug Delivery Laboratory, School of Pharmacy, University of Nottingham Malaysia Campus, Semenyih, Malaysia
- Penang Medical College, George Town, Malaysia
| | - Andrew Morris
- Drug Delivery Laboratory, School of Pharmacy, University of Nottingham Malaysia Campus, Semenyih, Malaysia
| | - Nashiru Billa
- Drug Delivery Laboratory, School of Pharmacy, University of Nottingham Malaysia Campus, Semenyih, Malaysia
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Perez RA, Mestres G. Role of pore size and morphology in musculo-skeletal tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 61:922-39. [DOI: 10.1016/j.msec.2015.12.087] [Citation(s) in RCA: 218] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 12/23/2015] [Accepted: 12/28/2015] [Indexed: 01/04/2023]
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Zeng S, Liu L, Shi Y, Qiu J, Fang W, Rong M, Guo Z, Gao W. Characterization of Silk Fibroin/Chitosan 3D Porous Scaffold and In Vitro Cytology. PLoS One 2015; 10:e0128658. [PMID: 26083846 PMCID: PMC4470591 DOI: 10.1371/journal.pone.0128658] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 04/29/2015] [Indexed: 01/06/2023] Open
Abstract
Bone tissue engineering is a powerful tool to treat bone defects caused by trauma, infection, tumors and other factors. Both silk fibroin (SF) and chitosan (CS) are non-toxic and have good biocompatibility, but are poor biological scaffolds when used alone. In this study, the microscopic structure and related properties of SF/CS composite scaffolds with different component ratios were examined. The scaffold material most suitable for osteoblast growth was determined, and these results offer an experimental basis for the future reconstruction of bone defects. First, via freeze-drying and chemical crosslinking methods, SF/CS composites with different component ratios were prepared and their structure was characterized. Changes in the internal structure of the SF and CS mixture were observed, confirming that the mutual modification between the two components was complete and stable. The internal structure of the composite material was porous and three-dimensional with a porosity above 90%. We next studied the pore size, swelling ratio, water absorption ratio, degradation and in vitro cell proliferation. For the 40% SF-60% CS group, the pore size of the scaffold was suitable for the growth of osteoblasts, and the rate of degradation was steady. This favors the early adhesion, growth and proliferation of MG-63 cells. In addition to good biocompatibility and satisfactory cell affinity, this material promotes the secretion of extracellular matrix materials by osteoblasts. Thus, 40% SF-60% CS is a good material for bone tissue engineering.
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Affiliation(s)
- Shuguang Zeng
- Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital Affiliated to Southern Medical University, Guangzhou, 510280, Guangdong, P.R. China
| | - Lei Liu
- Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital Affiliated to Southern Medical University, Guangzhou, 510280, Guangdong, P.R. China
- Department of Children stomatology, Branch Hospital of Stomatology, The Affiliated Zhongshan Hospital of Sun Yat-sen University, Zhongshan, 528403, Guangdong, P.R. China
| | - Yong Shi
- Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital Affiliated to Southern Medical University, Guangzhou, 510280, Guangdong, P.R. China
| | - Junqi Qiu
- Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital Affiliated to Southern Medical University, Guangzhou, 510280, Guangdong, P.R. China
| | - Wei Fang
- Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital Affiliated to Southern Medical University, Guangzhou, 510280, Guangdong, P.R. China
| | - Mingdeng Rong
- Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital Affiliated to Southern Medical University, Guangzhou, 510280, Guangdong, P.R. China
| | - Zehong Guo
- Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital Affiliated to Southern Medical University, Guangzhou, 510280, Guangdong, P.R. China
| | - Wenfeng Gao
- Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital Affiliated to Southern Medical University, Guangzhou, 510280, Guangdong, P.R. China
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15
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Mittal A, Kumar N. A new, bioactive, antibacterial-eluting, composite graft for infection-free wound healing. Wound Repair Regen 2015; 22:527-36. [PMID: 24899130 DOI: 10.1111/wrr.12194] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 04/01/2014] [Indexed: 11/28/2022]
Abstract
The current work focuses on the in vivo performance of a newly developed injectable composite graft in infected full-thickness wounds. The composite graft was composed of bioactive porous Poly dl-lactide-co-glycolide scaffolds, antibiotic gentamicin, and crosslinked gelatin as carrier gel. Treated infected wounds exhibited a faster wound closure, rapid weight gain, lower neutrophil count, higher breaking strength, and 100 times lesser microbial count (10(2) colony forming units/g in infected treated vs. 10(4) colony forming units/g in infected control group) in comparison with infected control group 28 days post treatment. During healing, collagen production was more in the treated groups at day 7 than controls and thereafter gradually reduced to normal levels. Histology revealed a mature scar tissue formation, fibroblast proliferation, epidermal resurfacing, and collagen deposition in reticular alignment similar to normal healthy skin in treated wounds. Further, the plasma concentration of gentamicin was 35-45 μg/mL during the initial 12 hours and reduced to 1 μg/mL in 24 hours, which indicated safe levels of the antibiotic drug during healing. These results clearly indicate a faster, infection-free, and safe after treatment with the developed graft.
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Affiliation(s)
- Anupama Mittal
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), SAS Nagar, India
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16
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Development and characterization of GRGDSPC-modified poly(lactide-co-glycolide acid) porous microspheres incorporated with protein-loaded chitosan microspheres for bone tissue engineering. Colloids Surf B Biointerfaces 2014; 122:439-446. [DOI: 10.1016/j.colsurfb.2014.04.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2013] [Revised: 04/23/2014] [Accepted: 04/25/2014] [Indexed: 01/09/2023]
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17
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Braghirolli DI, Steffens D, Pranke P. Electrospinning for regenerative medicine: a review of the main topics. Drug Discov Today 2014; 19:743-53. [DOI: 10.1016/j.drudis.2014.03.024] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 03/06/2014] [Accepted: 03/27/2014] [Indexed: 12/20/2022]
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18
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Karadzic I, Vucic V, Jokanovic V, Debeljak-Martacic J, Markovic D, Petrovic S, Glibetic M. Effects of novel hydroxyapatite-based 3D biomaterials on proliferation and osteoblastic differentiation of mesenchymal stem cells. J Biomed Mater Res A 2014; 103:350-7. [PMID: 24665062 DOI: 10.1002/jbm.a.35180] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 03/10/2014] [Accepted: 03/19/2014] [Indexed: 01/08/2023]
Abstract
The aim of this study was to examine the differential capacity of isolated dental pulp stem cells (SHED) cultured onto four different scaffold materials. The differential potential of isolated SHED was examined on the following scaffolds: porous hydroxyapatite (pHAP) alone or combined with three polymers [polylactic-co-glycolic acid (PLGA), alginate, and ethylene vinylacetate / ethylene vinylversatate (EVA/EVV)]. SHED were isolated by "outgrowth" method and characterized by the flow cytometry. Viability of cells grown with scaffolds was assessed by MTT and LDH assays. No significant cytotoxic effect of any of the tested materials was shown. Staining with alizarin red and estimated alkaline phosphatase activity to identify differentiation, demonstrated osteoblastic phenotype of SHED and newly deposited and mineralized extra cellular matrix (ECM) in presence of all tested scaffolds. The developed ECM seen at scanning electronic micrographs additionally confirmed the osteogenic differentiation and biocompatibility between cells and materials. In summary, all studied biomaterials are suitable carriers for proliferation and osteoblastic differentiation of dental pulp mesenchymal stem cells in vitro.
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Affiliation(s)
- Ivana Karadzic
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, 11000, Serbia
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19
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Mittal A, Kumar N. Drug-Loaded Polymeric Composite Skin Graft for Infection-Free Wound Healing: Fabrication, Characterization, Cell Proliferation, Migration, and Antimicrobial Activity. Pharm Res 2012; 29:3110-21. [DOI: 10.1007/s11095-012-0803-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 06/07/2012] [Indexed: 10/28/2022]
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20
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Mittal A, Kumar R, Parsad D, Kumar N. Cytomodulin-functionalized porous PLGA particulate scaffolds respond better to cell migration, actin production and wound healing in rodent model. J Tissue Eng Regen Med 2012; 8:351-63. [DOI: 10.1002/term.1527] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 02/06/2012] [Accepted: 04/03/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Anupama Mittal
- Department of Pharmaceutics; National Institute of Pharmaceutical Education and Research (NIPER); Sector 67 SAS Nagar-160 062 India
| | - Ravinder Kumar
- Department of Dermatology; Post Graduate Institute of Medical Education and Research (PGIMER); Chandigarh-160012 India
| | - Davinder Parsad
- Department of Dermatology; Post Graduate Institute of Medical Education and Research (PGIMER); Chandigarh-160012 India
| | - Neeraj Kumar
- Department of Pharmaceutics; National Institute of Pharmaceutical Education and Research (NIPER); Sector 67 SAS Nagar-160 062 India
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Psycharakis S, Tosca A, Melissinaki V, Giakoumaki A, Ranella A. Tailor-made three-dimensional hybrid scaffolds for cell cultures. Biomed Mater 2011; 6:045008. [DOI: 10.1088/1748-6041/6/4/045008] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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22
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Zhou S, Cui Z, Urban J. Dead cell counts during serum cultivation are underestimated by the fluorescent live/dead assay. Biotechnol J 2011; 6:513-8. [PMID: 21305696 DOI: 10.1002/biot.201000254] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Revised: 11/24/2010] [Accepted: 12/15/2010] [Indexed: 11/12/2022]
Abstract
The live/dead fluorescent assay provides a quick method for assessing the proportion of live and dead cells in cell culture systems or tissues and is widely used. Dead cells are detected by the fluorescence produced when propidium iodide (PI) binds to DNA; PI and similar molecules are excluded from live cells but can penetrate dead cells because of their loss of membrane integrity. Here we investigated the effect of serum in the culture medium on the reliability of the method. We assessed viability of chondrocytes with/without serum using both a live/dead assay kit and also trypan blue staining. We found that after 2 days of culture, the DNA-binding dye PI could no longer detect dead cells if serum was present but they were readily detected in serum-free medium or if an inhibitor to DNase I was added to the serum-containing medium. Dead cells could be detected by trypan blue staining in all cultures. Hence dead cells are no longer detected as the DNase I present in serum degrades their DNA. DNA-binding dyes may thus not give a reliable estimate of the number of dead cells in systems that have been cultured in the presence of serum for several days.
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Affiliation(s)
- Shengda Zhou
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
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