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El-Okaily MS, Mostafa AA, Dulnik J, Denis P, Sajkiewicz P, Mahmoud AA, Dawood R, Maged A. Nanofibrous Polycaprolactone Membrane with Bioactive Glass and Atorvastatin for Wound Healing: Preparation and Characterization. Pharmaceutics 2023; 15:1990. [PMID: 37514176 PMCID: PMC10384954 DOI: 10.3390/pharmaceutics15071990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/14/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Skin wound healing is one of the most challenging processes for skin reconstruction, especially after severe injuries. In our study, nanofiber membranes were prepared for wound healing using an electrospinning process, where the prepared nanofibers were made of different weight ratios of polycaprolactone and bioactive glass that can induce the growth of new tissue. The membranes showed smooth and uniform nanofibers with an average diameter of 118 nm. FTIR and XRD results indicated no chemical interactions of polycaprolactone and bioactive glass and an increase in polycaprolactone crystallinity by the incorporation of bioactive glass nanoparticles. Nanofibers containing 5% w/w of bioactive glass were selected to be loaded with atorvastatin, considering their best mechanical properties compared to the other prepared nanofibers (3, 10, and 20% w/w bioactive glass). Atorvastatin can speed up the tissue healing process, and it was loaded into the selected nanofibers using a dip-coating technique with ethyl cellulose as a coating polymer. The study of the in vitro drug release found that atorvastatin-loaded nanofibers with a 10% coating polymer revealed gradual drug release compared to the non-coated nanofibers and nanofibers coated with 5% ethyl cellulose. Integration of atorvastatin and bioactive glass with polycaprolactone nanofibers showed superior wound closure results in the human skin fibroblast cell line. The results from this study highlight the ability of polycaprolactone-bioactive glass-based fibers loaded with atorvastatin to stimulate skin wound healing.
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Affiliation(s)
- Mohamed S El-Okaily
- Refractories, Ceramics and Building Materials Department (Biomaterials Group), National Research Centre (NRC), El Bohouth St., Dokki, Giza 12622, Egypt
- Nanomedicine & Tissue Engineering Lab., Medical Research Center of Excellence (MRCE), National Research Centre (NRC), Giza 12622, Egypt
| | - Amany A Mostafa
- Refractories, Ceramics and Building Materials Department (Biomaterials Group), National Research Centre (NRC), El Bohouth St., Dokki, Giza 12622, Egypt
- Nanomedicine & Tissue Engineering Lab., Medical Research Center of Excellence (MRCE), National Research Centre (NRC), Giza 12622, Egypt
| | - Judyta Dulnik
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warsaw, Poland
| | - Piotr Denis
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warsaw, Poland
| | - Paweł Sajkiewicz
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warsaw, Poland
| | - Azza A Mahmoud
- Pharmaceutics and Pharmaceutical Technology Department, Faculty of Pharmacy, Future University in Egypt, New Cairo 11835, Egypt
| | - Reham Dawood
- Microbial Biotechnology Department, Biotechnology Research Institute, National Research Centre, EL Bohouth St., Dokki, Giza 12622, Egypt
| | - Amr Maged
- Pharmaceutics and Pharmaceutical Technology Department, Faculty of Pharmacy, Future University in Egypt, New Cairo 11835, Egypt
- Pharmaceutical Factory, Faculty of Pharmacy, Future University in Egypt, New Cairo 11835, Egypt
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Dorozhkin SV. Synthetic amorphous calcium phosphates (ACPs): preparation, structure, properties, and biomedical applications. Biomater Sci 2021; 9:7748-7798. [PMID: 34755730 DOI: 10.1039/d1bm01239h] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Amorphous calcium phosphates (ACPs) represent a metastable amorphous state of other calcium orthophosphates (abbreviated as CaPO4) possessing variable compositional but rather identical glass-like physical properties, in which there are neither translational nor orientational long-range orders of the atomic positions. In nature, ACPs of a biological origin are found in the calcified tissues of mammals, some parts of primitive organisms, as well as in the mammalian milk. Manmade ACPs can be synthesized in a laboratory by various methods including wet-chemical precipitation, in which they are the first solid phases, precipitated after a rapid mixing of aqueous solutions containing dissolved ions of Ca2+ and PO43- in sufficient amounts. Due to the amorphous nature, all types of synthetic ACPs appear to be thermodynamically unstable and, unless stored in dry conditions or doped by stabilizers, they tend to transform spontaneously to crystalline CaPO4, mainly to ones with an apatitic structure. This intrinsic metastability of the ACPs is of a great biological relevance. In particular, the initiating role that metastable ACPs play in matrix vesicle biomineralization raises their importance from a mere laboratory curiosity to that of a reasonable key intermediate in skeletal calcifications. In addition, synthetic ACPs appear to be very promising biomaterials both for manufacturing artificial bone grafts and for dental applications. In this review, the current knowledge on the occurrence, structural design, chemical composition, preparation, properties, and biomedical applications of the synthetic ACPs have been summarized.
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Mostafa AA, Mahmoud AA, Hamid MAA, Basha M, El-Okaily MS, Abdelkhalek AFA, El-Anwar MI, El Moshy S, Gibaly A, Hassan EA. An in vitro / in vivo release test of risedronate drug loaded nano-bioactive glass composite scaffolds. Int J Pharm 2021; 607:120989. [PMID: 34389417 DOI: 10.1016/j.ijpharm.2021.120989] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/05/2021] [Accepted: 08/06/2021] [Indexed: 01/06/2023]
Abstract
Three-dimensional (3D) matrices scaffolds play a noteworthy role in promoting cell generation and propagation. In this study, scaffolds prepared from chitosan/polyvinyl alcohol loaded with/without an osteoporotic drug (risedronate) and nano-bioactive glass (nBG) have been developed to promote healing of bone defects. The scaffolds were characterized by scanning electron microscopy (SEM), porosity test as well as mechanical strength. The pattern of drug release and ability to promote the proliferation of Saos-2osteosarcoma cells had also been reported. Osteogenic potential of the scaffolds was evaluated by testing their effect on healing critical-sized dog's mandibular bone defects. Increasing chitosan and nBG in the porous scaffolds induced decrease in drug release, increased the scaffold's strength and supported their cell proliferation, alkaline phosphatase (ALP) activities, as well as increased calcium deposition. Histological and histomorphometric results demonstrated newly formed bone trabeculae inside critical-sized mandibular defects when treated with scaffolds. Trabecular thickness, bone volume/tissue volume and the percentage of mature collagen fibers increased in groups treated with scaffolds loaded with 10% nBG and risedronate or loaded with 30% nBG with/without risedronate compared with those treated with non-loaded scaffolds and empty control groups. These findings confirmed the potential osteogenic activity of chitosan/polyvinyl alcohol-based scaffolds loaded with risedronate and nBG.
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Affiliation(s)
- Amany A Mostafa
- Nanomedicine & Tissue Engineering Lab., Medical Research Center of Excellence (MRCE), National Research Centre, Cairo, Egypt; Refractories, Ceramics & Building Materials Department (Biomaterials group), National Research Centre, Cairo, Egypt.
| | - Azza A Mahmoud
- Nanomedicine & Tissue Engineering Lab., Medical Research Center of Excellence (MRCE), National Research Centre, Cairo, Egypt; Department of Pharmaceutical Technology, Pharmaceutical and Drug Industries Research Division, National Research Centre, Cairo, Egypt; Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Mohamed A Abdel Hamid
- Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Mona Basha
- Department of Pharmaceutical Technology, Pharmaceutical and Drug Industries Research Division, National Research Centre, Cairo, Egypt
| | - Mohamed S El-Okaily
- Nanomedicine & Tissue Engineering Lab., Medical Research Center of Excellence (MRCE), National Research Centre, Cairo, Egypt; Refractories, Ceramics & Building Materials Department (Biomaterials group), National Research Centre, Cairo, Egypt
| | - Abdel Fattah A Abdelkhalek
- Department of Microbiology of Supplementary General Science, Faculty of Oral & Dental Medicine, Future University in Egypt, Cairo, Egypt
| | - Mohamed I El-Anwar
- Department of Mechanical Engineering, National Research Centre, Cairo, Egypt
| | - Sara El Moshy
- Department of Oral Biology, Faculty of Dentistry, Cairo University, Cairo, Egypt
| | - Amr Gibaly
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Beni-Suef University, Beni-Suef, Egypt
| | - Elham A Hassan
- Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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In Vivo Assessment of Synthetic and Biological-Derived Calcium Phosphate-Based Coatings Fabricated by Pulsed Laser Deposition: A Review. COATINGS 2021. [DOI: 10.3390/coatings11010099] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The aim of this review is to present the state-of-the art achievements reported in the last two decades in the field of pulsed laser deposition (PLD) of biocompatible calcium phosphate (CaP)-based coatings for medical implants, with an emphasis on their in vivo biological performances. There are studies in the dedicated literature on the in vivo testing of CaP-based coatings (especially hydroxyapatite, HA) synthesized by many physical vapor deposition methods, but only a few of them addressed the PLD technique. Therefore, a brief description of the PLD technique, along with some information on the currently used substrates for the synthesis of CaP-based structures, and a short presentation of the advantages of using various animal and human implant models will be provided. For an in-depth in vivo assessment of both synthetic and biological-derived CaP-based PLD coatings, a special attention will be dedicated to the results obtained by standardized and micro-radiographies, (micro) computed tomography and histomorphometry, tomodensitometry, histology, scanning and transmission electron microscopies, and mechanical testing. One main specific result of the in vivo analyzed studies is related to the demonstrated superior osseointegration characteristics of the metallic (generally Ti) implants functionalized with CaP-based coatings when compared to simple (control) Ti ones, which are considered as the “gold standard” for implantological applications. Thus, all such important in vivo outcomes were gathered, compiled and thoroughly discussed both to clearly understand the current status of this research domain, and to be able to advance perspectives of these synthetic and biological-derived CaP coatings for future clinical applications.
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Madhusoodan AP, Das K, Mili B, Kumar K, Kumar A, Saxena AC, Singh P, Dutt T, Bag S. In vitro proliferation and differentiation of canine bone marrow derived mesenchymal stem cells over hydroxyl functionalized CNT substrates. ACTA ACUST UNITED AC 2019; 24:e00387. [PMID: 31799142 PMCID: PMC6881647 DOI: 10.1016/j.btre.2019.e00387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/06/2019] [Accepted: 10/14/2019] [Indexed: 11/26/2022]
Abstract
Nanotopography of culture substrate acts as a positive cue in cell-biomaterial based tissue regeneration. Considering the potentiality of carbon nanotubes (CNTs) this study was designed to evaluate its two functionalized form by an in vitro culture condition using canine mesenchymal stem cells as cellular model. Cells were isolated and its behaviour, proliferation and differentiation processes were elucidated onto CNT substrates. Beside the variations in cellular behaviour it was remarkably noted that even though proliferation was reduced but osteogenic and chondrogenic differentiation was enhanced over multi-walled CNTs, whereas neuronal differentiation was better supported by single walled CNTs as evidenced by our cytochemical, immunocytochemical, gene expression and flow cytometry assays. The former one was noticed more cytocompatible by our different apoptosis studies. The outcome of these experiments collectively indicated that hydroxylated functionalized CNTs could be a potential scaffold constituent for future experimentations as well as for the application in regenerative medicine.
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Affiliation(s)
- A P Madhusoodan
- Division of Physiology and Climatology, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Kinsuk Das
- Division of Physiology and Climatology, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Bhabesh Mili
- Division of Physiology and Climatology, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Kuldeep Kumar
- Division of Physiology and Climatology, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Ajay Kumar
- Biochemistry and Food Science Section, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - A C Saxena
- Division of Surgery, Izatnagar, ICAR - Indian Veterinary Research Institute, Uttar Pradesh, India
| | - Praveen Singh
- Biophysics, Electron Microscopy and Instrumentation Section, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Triveni Dutt
- Division of Livestock Production and Management, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Sadhan Bag
- Division of Physiology and Climatology, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
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A promising nystatin nanocapsular hydrogel as an antifungal polymeric carrier for the treatment of topical candidiasis. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.12.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Gajera BY, Shah DA, Dave RH. Investigating a Novel Hot Melt Extrusion-Based Drying Technique to Solidify an Amorphous Nanosuspension Using Design of Experiment Methodology. AAPS PharmSciTech 2018; 19:3778-3790. [PMID: 30280356 DOI: 10.1208/s12249-018-1189-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 09/17/2018] [Indexed: 12/28/2022] Open
Abstract
The hot melt extrusion (HME) technology was explored and optimized to solidify an amorphous nanosuspension using Quality by Design (QbD) methodology. A design of experiments (DoE) approach was used to perform a set of 15 experiments, varying independent variables (feed rate, input temperature, and screw speed) within a design space. Redispersibility index (RDI), moisture content, and process yield constituted the critical quality attributes (CQAs) of the experimental design. Regression analysis and ANOVA were employed to identify and estimate significant main effects and two-way interactions, and model the process of HME drying for predictive purposes. The optimized HME-dried end product was characterized for physicochemical properties using differential scanning calorimetry (DSC), X-ray powder diffractions (XRPD), polarized light microscopy (PLM), Fourier transform infrared spectroscopy (FTIR), and in vitro dissolution studies. The statistical analysis reveals feed rate and input temperature as significant independent variables, critically influencing RDI and moisture content of solidified end product. The model developed for process yield was insignificant at a p-value of 0.05. The API retained its amorphous nature after the extrusion process which was confirmed using DSC and XRPD techniques. PLM was unsuitable to differentiate and determine crystallinity of drug moiety in the presence of a semi-crystalline bulking agent, microcrystalline cellulose (MCC). In vitro dissolution study depicted solubility and dissolution enhancement for HME-dried amorphous nanosuspension in both the dissolution media which can be attributed to amorphous nature of nanosized drug particles. A well-designed study implemented by DoE aided in developing a robust and novel HME technique to dry aqueous nanosuspension.
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Manaspon C, Chaimongkolnukul K, Kengkoom K, Boongird A, Hongeng S, Chairoungdua A, Nasongkla N. Time-dependent distribution of SN-38 from injectable polymeric depots in brain tumor model. Biomed Phys Eng Express 2018. [DOI: 10.1088/2057-1976/aad396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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A potential antibacterial wound dressing of cefadroxil chitosan nanoparticles in situ gel: Fabrication, in vitro optimization and in vivo evaluation. Int J Pharm 2018; 544:129-140. [DOI: 10.1016/j.ijpharm.2018.04.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 04/10/2018] [Accepted: 04/11/2018] [Indexed: 11/19/2022]
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Intratumoral administration of carboplatin bearing poly (ε-caprolactone) nanoparticles amalgamated with in situ gel tendered augmented drug delivery, cytotoxicity, and apoptosis in melanoma tumor. Colloids Surf B Biointerfaces 2018; 166:339-348. [PMID: 29627747 DOI: 10.1016/j.colsurfb.2018.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 03/02/2018] [Accepted: 03/08/2018] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND OBJECTIVE In a phase II clinical trial, carboplatin (CBDCA) displayed the response rate of 19% equivalent to dacarbazine in the treatment of malignant melanoma. However, besides desirable therapeutic profile, intravenous (i.v) administration of CBDCA delivers a subtherapeutic concentration at the target site. This entails administration of CBDCA through an alternate route by using nanovectors to achieve therapeutic efficacy in the treatment of melanoma. METHODS AND RESULTS Carboplatin loaded poly(ε-caprolactone) nanoparticles (CBDCA-PCL-NPs) were formulated and amalgamated with chitosan-β-glycerophosphate gel (CBDCA-PCL-NPs-Gel) for intratumoral (i.t) administration. The mean particle size and zeta-potential of CBDCA-PCL-NPs were determined to be 54.5 ± 6.3-nm and -8.1 ± 0.9-mV, in addition to spherical shape of the nanoformulation. FT-IR spectroscopy denied any issue of chemical incompatibility between drug and polymer. XRD pattern indicated the amorphous lattice of CBDCA-PCL-NPs. The drug loading capacity of CBDCA-PCL-NPs-Gel was estimated to be 152 mg/1 ml. CBDCA-PCL-NPs-Gel demonstrated prolonged drug release up to 48 h. Furthermore, CBDCA-PCL-NPs-Gel displayed the IC50 of 80.3-μM significantly (P < 0.05) lower than 162.8-μM of CBDCA-PCL-NPs and 248.5-μM of CBDCA solution in B16F1, melanoma cancer cells. CBDCA-PCL-NPs-Gel verified 80.2% of apoptosis significantly (P < 0.01) higher than 57.6% of CBDCA-PCL-NPs and 43.4% of CBDCA solution. Continuation to this, CBDCA-PCL-NPs-Gel significantly (P < 0.01) suppressed the tumor volume to 95.5 ± 8.4-mm3 as compared to 178.9 ± 10.2-mm3 of CBDCA solution injected i.t. and 210.6 ± 17.1-mm3 displayed by CBDCA solution injected i.v. vis-à-vis 815.4 ± 17.1-mm3 tumor volume of B16F1 tumor bearing C57BL6J mice. CONCLUSION The promising preclinical results of CBDCA-PCL-NPs-Gel warrant further investigations under a set of stringent parameters for the treatment of melanoma.
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Pitorre M, Gondé H, Haury C, Messous M, Poilane J, Boudaud D, Kanber E, Rossemond Ndombina GA, Benoit JP, Bastiat G. Recent advances in nanocarrier-loaded gels: Which drug delivery technologies against which diseases? J Control Release 2017; 266:140-155. [PMID: 28951319 DOI: 10.1016/j.jconrel.2017.09.031] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/21/2017] [Accepted: 09/22/2017] [Indexed: 01/02/2023]
Abstract
The combination of pharmaceutical technologies can be a wise choice for developing innovative therapeutic strategies. The association of nanocarriers and gels provides new therapeutic possibilities due to the combined properties of the two technologies. Gels support the nanocarriers, localize their administration to the target tissue, and sustain their release. In addition to the properties afforded by the gel, nanocarriers can provide additional drug sustained release or different pharmacokinetic and biodistribution profiles than those from nanocarriers administered by the conventional route to improve the drug therapeutic index. This review focuses on recent (over the last ten years) in vivo data showing the advances and advantages of using nanocarrier-loaded gels. Liposomes, micelles, liquid and solid lipid nanocapsules, polymeric nanoparticles, dendrimers, and fullerenes are all nanotechnologies which have been recently assessed for medical applications, such as cancer therapy, the treatment of cutaneous and infectious diseases, anesthesia, the administration of antidepressants, and the treatment of unexpected diseases, such as alopecia.
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Affiliation(s)
- Marion Pitorre
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France; Master 2 Nanomédecines et R&D Pharmaceutique, Pharmacy Department, UFR Santé, Université Bretagne Loire, Angers, France
| | - Henri Gondé
- Master 2 Nanomédecines et R&D Pharmaceutique, Pharmacy Department, UFR Santé, Université Bretagne Loire, Angers, France
| | - Clotilde Haury
- Master 2 Nanomédecines et R&D Pharmaceutique, Pharmacy Department, UFR Santé, Université Bretagne Loire, Angers, France
| | - Marwa Messous
- Master 2 Nanomédecines et R&D Pharmaceutique, Pharmacy Department, UFR Santé, Université Bretagne Loire, Angers, France
| | - Jérémie Poilane
- Master 2 Nanomédecines et R&D Pharmaceutique, Pharmacy Department, UFR Santé, Université Bretagne Loire, Angers, France
| | - David Boudaud
- Master 2 Nanomédecines et R&D Pharmaceutique, Pharmacy Department, UFR Santé, Université Bretagne Loire, Angers, France
| | - Erdem Kanber
- Master 2 Nanomédecines et R&D Pharmaceutique, Pharmacy Department, UFR Santé, Université Bretagne Loire, Angers, France
| | | | - Jean-Pierre Benoit
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France; Master 2 Nanomédecines et R&D Pharmaceutique, Pharmacy Department, UFR Santé, Université Bretagne Loire, Angers, France
| | - Guillaume Bastiat
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France; Master 2 Nanomédecines et R&D Pharmaceutique, Pharmacy Department, UFR Santé, Université Bretagne Loire, Angers, France.
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Das K, Madhusoodan AP, Mili B, Kumar A, Saxena AC, Kumar K, Sarkar M, Singh P, Srivastava S, Bag S. Functionalized carbon nanotubes as suitable scaffold materials for proliferation and differentiation of canine mesenchymal stem cells. Int J Nanomedicine 2017; 12:3235-3252. [PMID: 28458543 PMCID: PMC5402918 DOI: 10.2147/ijn.s122945] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In the field of regenerative medicine, numerous potential applications of mesenchymal stem cells (MSCs) can be envisaged, due to their ability to differentiate into a range of tissues on the basis of the substrate on which they grow. With the advances in nanotechnology, carbon nanotubes (CNTs) have been widely explored for use as cell culture substrate in tissue engineering applications. In this study, canine bone marrow-derived MSCs were considered as the cellular model for an in vitro study to elucidate the collective cellular processes, using three different varieties of thin films of functionalized carbon nanotubes (COOH-single-walled CNTs [SWCNTs], COOH-multiwalled CNTs [MWCNTs] and polyethylene glycol [PEG]-SWCNTs), which were spray dried onto preheated cover slips. Cells spread out better on the CNT films, resulting in higher cell surface area and occurrence of filopodia, with parallel orientation of stress fiber bundles. Canine MSCs proliferated at a slower rate on all types of CNT substrates compared to the control, but no decline in cell number was noticed during the study period. Expression of apoptosis-associated genes decreased on the CNT substrates as time progressed. On flow cytometry after AnnexinV-fluorescein isothiocyanate/propidium iodide (PI) staining, total number of apoptotic and necrotic cells remained lower in COOH-functionalized films compared to PEG-functionalized ones. Collectively, these results indicate that COOH-MWCNT substrate provided an environment of low cytotoxicity. Canine MSCs were further induced to differentiate along osteogenic, chondrogenic, and neuronal lineages by culturing under specific differentiation conditions. The cytochemical and immunocytochemical staining results, as well as the expression of the bone marker genes, led us to hypothesize that the COOH-MWCNT substrate acted as a better cue, accelerating the osteogenic differentiation process. However, while chondrogenesis was promoted by COOH-SWCNT, neuronal differentiation was promoted by both COOH-SWNCT and COOH-MWCNT. Taken together, these findings suggest that COOH-functionalized CNTs represent a promising scaffold component for future utilization in the selective differentiation of canine MSCs in regenerative medicine.
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Affiliation(s)
| | | | | | | | | | | | | | - Praveen Singh
- Biophysics, Electron Microscopy and Instrumentation Section
| | - Sameer Srivastava
- Division of Veterinary Biotechnology, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India
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Eliaz N, Metoki N. Calcium Phosphate Bioceramics: A Review of Their History, Structure, Properties, Coating Technologies and Biomedical Applications. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E334. [PMID: 28772697 PMCID: PMC5506916 DOI: 10.3390/ma10040334] [Citation(s) in RCA: 382] [Impact Index Per Article: 54.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 03/15/2017] [Accepted: 03/22/2017] [Indexed: 02/06/2023]
Abstract
Calcium phosphate (CaP) bioceramics are widely used in the field of bone regeneration, both in orthopedics and in dentistry, due to their good biocompatibility, osseointegration and osteoconduction. The aim of this article is to review the history, structure, properties and clinical applications of these materials, whether they are in the form of bone cements, paste, scaffolds, or coatings. Major analytical techniques for characterization of CaPs, in vitro and in vivo tests, and the requirements of the US Food and Drug Administration (FDA) and international standards from CaP coatings on orthopedic and dental endosseous implants, are also summarized, along with the possible effect of sterilization on these materials. CaP coating technologies are summarized, with a focus on electrochemical processes. Theories on the formation of transient precursor phases in biomineralization, the dissolution and reprecipitation as bone of CaPs are discussed. A wide variety of CaPs are presented, from the individual phases to nano-CaP, biphasic and triphasic CaP formulations, composite CaP coatings and cements, functionally graded materials (FGMs), and antibacterial CaPs. We conclude by foreseeing the future of CaPs.
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Affiliation(s)
- Noam Eliaz
- Biomaterials and Corrosion Lab, Department of Materials Science and Engineering, Tel-Aviv University, Ramat Aviv 6997801, Israel.
| | - Noah Metoki
- Biomaterials and Corrosion Lab, Department of Materials Science and Engineering, Tel-Aviv University, Ramat Aviv 6997801, Israel.
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Jog R, Burgess DJ. Pharmaceutical Amorphous Nanoparticles. J Pharm Sci 2017; 106:39-65. [DOI: 10.1016/j.xphs.2016.09.014] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 09/06/2016] [Accepted: 09/15/2016] [Indexed: 01/18/2023]
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Abdelfattah MI, Nasry SA, Mostafa AA. Characterization and Cytotoxicity Analysis of a Ciprofloxacin Loaded Chitosan/Bioglass Scaffold on Cultured Human Periodontal Ligament Stem Cells: a Preliminary Report. Open Access Maced J Med Sci 2016; 4:461-467. [PMID: 27703576 PMCID: PMC5042636 DOI: 10.3889/oamjms.2016.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 04/12/2016] [Accepted: 04/13/2016] [Indexed: 11/21/2022] Open
Abstract
AIM: The aim of this study was to analyze the cytotoxicity of ciprofloxacin (CIP) loaded on chitosan bioactive glass scaffold on human periodontal ligament stem cells (PLSCs) in vitro. MATERIALS AND METHODS: PLSCs obtained from human third molars, cultures treated with medium containing 15 x 15 mm chitosan/bioactive glass scaffolds without/with different concentration 0, 5, 10, and 20 % of CIP. A total of 15 x 10^3 cells were plated in 6 well plates. The attached cells of each group were harvested from the plates after 1, 4 and 8 days of culture to detect the viability of cells. The cell number was determined using a hemocytometer and the trypan blue dye-exclusion assay. Data was analyzed using normality using Shapiro-Wilk test. Comparisons between groups were made using One-way ANOVA complemented by Tukey’s test. RESULTS: When comparing the proliferation rate of cells in the four groups, no statistically significant difference was found (P = 0.633). With regards to cell viability, no statistical difference was found between the 0, 5, and 10 % CIP concentrations, while the 20 % CIP concentration demonstrated the least viability with a high statistically significant difference (P = 0.003). CONCLUSION: Twenty percentages CIP demonstrated the least proliferation rate and viability.
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Affiliation(s)
- Maha I Abdelfattah
- Oro-dental Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo, Egypt
| | - Sherine A Nasry
- Surgery and Oral Medicine Department, Oro-dental Research Division, National Research Centre, Cairo, Egypt
| | - Amani A Mostafa
- Refractories, Ceramic & Building Materials Department & Nanomedicine & Tissue Engineering Laboratory, MRCE, National Research Centre, Cairo, Egypt
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