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Hasanin M, Taha NF, Abdou AR, Emara LH. Green decoration of graphene oxide Nano sheets with gelatin and gum Arabic for targeted delivery of doxorubicin. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2022; 34:e00722. [PMID: 35686004 PMCID: PMC9171453 DOI: 10.1016/j.btre.2022.e00722] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/09/2022] [Accepted: 03/16/2022] [Indexed: 12/21/2022]
Abstract
Tri-nanocomposite of gelatin, gum arabic functionalized onto graphene oxide. Loading of anticancer doxorubicin onto the tri-nanocomposite via green biosynthesis. High drug loading from loaded composite, with targeted delivery to cancerous cells. High proliferative inhibition of drug loaded composite on A549 lung carcinoma. Minimal toxicity of drug loaded composite on normal WI-38 lung fibroblast.
Tri-nanocomposite system of biocompatible polymers (gelatin/gum arabic) functionalized onto graphene-oxide nanosheets for controlling the release of an anticancer, doxorubicin (DOX), was fabricated via green-biosynthesis. Biocompatibility and nano-size stability of the tri-nanocomposite was characterized by SEM, TEM, FTIR, XRD, and zeta-potential. Loading-efficiency, release-behavior and cytotoxic-activity of DOX-loaded-composite in WI-38 normal-lung-fibroblast and A549 lung-carcinoma cells were investigated. High DOX-loading (at pH 9.5), with pH-sensitive release from loaded-composite was achieved, with 25% and 77% DOX released, at physiological pH 7.4 and cancerous pH 5.3, respectively. Stability of tri-nanocomposite system was confirmed over 3-months storage at accelerated conditions, as presented by FTIR, XRD, TEM, zeta-potential and in-vitro release assays. High proliferative inhibitory effect of DOX loaded-composite, on A549-cells, with minimal toxicity on WI-38-cells, with IC50 values of 51.9 ± 0.46 and 185±1.08 µg/mL, against A549 and WI-38, respectively. Proposed tri-nanocomposite offers a novel combination of gelatin/gum arabic with graphene-oxide for targeted drug-delivery and efficient anti-cancer therapy.
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Affiliation(s)
- Mohamed Hasanin
- Cellulose and Paper Department, Chemical Research Institute, National Research Centre, 33 EL Bohouth st. (former EL Tahrir st.), Dokki, Giza, P.O.12622 Egypt
| | - Nesrin Fouad Taha
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, 33 EL Bohouth st. (former EL Tahrir st.), Dokki, Giza, P.O.12622 Egypt
- Corresponding author.
| | - Aya Rashad Abdou
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, 33 EL Bohouth st. (former EL Tahrir st.), Dokki, Giza, P.O.12622 Egypt
| | - Laila Hasanin Emara
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, 33 EL Bohouth st. (former EL Tahrir st.), Dokki, Giza, P.O.12622 Egypt
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Yang SW, Chen YJ, Chen CJ, Liu JT, Yang CY, Tsai JH, Lu HE, Chen SY, Chang SJ. High-Density Horizontal Stacking of Chondrocytes via the Synergy of Biocompatible Magnetic Gelatin Nanocarriers and Internal Magnetic Navigation for Enhancing Cartilage Repair. Polymers (Basel) 2022; 14:809. [PMID: 35215722 PMCID: PMC8963011 DOI: 10.3390/polym14040809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/09/2022] [Accepted: 02/16/2022] [Indexed: 12/21/2022] Open
Abstract
Osteoarthritis (OA) is a globally occurring articular cartilage degeneration disease that adversely affects both the physical and mental well-being of the patient, including limited mobility. One major pathological characteristic of OA is primarily related to articular cartilage defects resulting from abrasion and catabolic and proinflammatory mediators in OA joints. Although cell therapy has hitherto been regarded as a promising treatment for OA, the therapeutic effects did not meet expectations due to the outflow of implanted cells. Here, we aimed to explore the repair effect of magnetized chondrocytes using magnetic amphiphilic-gelatin nanocarrier (MAGNC) to enhance cellular anchored efficiency and cellular magnetic guidance (MG) toward the superficial zone of damaged cartilage. The results of in vitro experiments showed that magnetized chondrocytes could be rapidly guided along the magnetic force line to form cellular amassment. Furthermore, the Arg-Gly-Asp (RGD) motif of gelatin in MAGNC could integrate the interaction among cells to form cellular stacking. In addition, MAGNCs upregulated the gene expression of collagen II (Col II), aggrecan, and downregulated that of collagen I (Col I) to reduce cell dedifferentiation. In animal models, the magnetized chondrocytes can be guided into the superficial zone with the interaction between the internal magnetic field and MAGNC to form cellular stacking. In vivo results showed that the intensity of N-sulfated-glycosaminoglycans (sGAG) and Col II in the group of magnetized cells with magnetic guiding was higher than that in the other groups. Furthermore, smooth closure of OA cartilage defects was observed in the superficial zone after 8 weeks of implantation. The study revealed the significant potential of MAGNC in promoting the high-density stacking of chondrocytes into the cartilage surface and retaining the biological functions of implanted chondrocytes for OA cartilage repair.
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Affiliation(s)
- Shan-Wei Yang
- Department of Orthopedics, Kaohsiung Veterans General Hospital, Kaohsiung City 813414, Taiwan;
| | - Yong-Ji Chen
- Department of Biomedical Engineering, I-Shou University, Kaohsiung City 813414, Taiwan; (Y.-J.C.); (C.-Y.Y.); (J.-H.T.)
| | - Ching-Jung Chen
- School of Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China;
| | - Jen-Tsai Liu
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China;
| | - Chin-Yi Yang
- Department of Biomedical Engineering, I-Shou University, Kaohsiung City 813414, Taiwan; (Y.-J.C.); (C.-Y.Y.); (J.-H.T.)
| | - Jen-Hao Tsai
- Department of Biomedical Engineering, I-Shou University, Kaohsiung City 813414, Taiwan; (Y.-J.C.); (C.-Y.Y.); (J.-H.T.)
| | - Huai-En Lu
- Food Industry Research and Development Institute, Hsinchu 300193, Taiwan
| | - San-Yuan Chen
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu City 300093, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, Taichung City 406040, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung City 813414, Taiwan
| | - Shwu-Jen Chang
- Department of Biomedical Engineering, I-Shou University, Kaohsiung City 813414, Taiwan; (Y.-J.C.); (C.-Y.Y.); (J.-H.T.)
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One-step synthesis of hydrophilic functionalized and cytocompatible superparamagnetic iron oxide nanoparticles (SPIONs) based aqueous ferrofluids for biomedical applications. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.10.161] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Keshtkar M, Shahbazi-Gahrouei D, Mehrgardi M, Aghaei M, Khoshfetrat S. Synthesis and Cytotoxicity Assessment of Gold-coated Magnetic Iron Oxide Nanoparticles. J Biomed Phys Eng 2018; 8:357-364. [PMID: 30568925 PMCID: PMC6280118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 01/09/2017] [Indexed: 11/23/2022]
Abstract
INTRODUCTION One class of magnetic nanoparticles is magnetic iron oxide nanoparticles (MIONs) which has been widely offered due to of their many advantages. Owing to the extensive application of MIONs in biomedicine, before they can be used in vivo, their cytotoxicity have to be investigated. Therefore, there is an urgent need for understanding the potential risks associated with MIONs. MATERIALS AND METHODS Firstly, gold-coated Fe3O4 nanoparticles (GMNP) were synthesized. The size, structure and spectroscopic properties of the nanoparticles were characterized by transmission electron microscopy (TEM), X-ray diffractometry (XRD) and UV-Visible spectrophotometer, respectively. Cytotoxicity of nanoparticles was studied with different concentrations ranging from 10 µg/mL up to 400 µg/mL and for different incubation times (12 hours and 24 hours) on MCF-7 and HFFF-PI6. Cytotoxicity study was performed by MTT assay. RESULTS XRD pattern confirmed the structure of GMNPs and TEM image shows that GMNPs are under 50 nm. For MCF-7 and HFFF-PI6 cells, at concentration of 300 and 400 µg/mL, Fe3O4 nanoparticles are toxic, respectively. Moreover, for both cells, cell viability for GMNPs is higher than %80, therefore, up to 400 µg/mL they are not toxic. Results show that for both cells, Fe3O4 nanoparticles have higher cytotoxicity than GMNPs. CONCLUSION This finding suggests that gold coating reduces the toxic effects of uncoated Fe3O4 nanoparticles. Less toxicity of GMNP may be attributed to controlled release from Fe2+ ions in intracellular space. Moreover, cell toxicity increased with raise in dose (concentration) and incubation time.
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Affiliation(s)
- M. Keshtkar
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - D. Shahbazi-Gahrouei
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - M.A. Mehrgardi
- Department of Chemistry, University of Isfahan, Isfahan, Iran
| | - M. Aghaei
- Department of Clinical Biochemistry, School of Pharmacy and Isfahan Pharmaceutical Sciences, Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Fakhimikabir H, Tavakoli MB, Zarrabi A, Amouheidari A, Rahgozar S. Could FA-PG-SPIONs act as a hyperthermia sensitizing agent? An in vitro study. J Therm Biol 2018; 78:73-83. [DOI: 10.1016/j.jtherbio.2018.09.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/01/2018] [Accepted: 09/13/2018] [Indexed: 11/28/2022]
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Shu M, Yao X, Wu K, Zhang K, Nishinari K, Phillips GO, Yao X, Jiang F. Preparation and stability of nano-scaled gel beads of λ-carrageenan bound with ferric ions. Int J Biol Macromol 2018; 120:2523-2529. [PMID: 30195004 DOI: 10.1016/j.ijbiomac.2018.09.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/04/2018] [Accepted: 09/04/2018] [Indexed: 10/28/2022]
Abstract
Iron-deficiency anemia (IDA) is a major global public health problem, and the iron fortifiers in diet are clearly needed in the prevention and improvement of IDA for humans. A novel nano-scaled gel beads of λ-carrageenan (λ-car) specifically binding with ferric ions was developed to be a promising iron fortifier with no adverse organoleptic changes on food. Turbidity measurement, thermogravimetric analysis and Fourier transform infrared spectroscopy confirmed the successful chelating. The gel beads of λ-car-Fe3+ complex showed good dispersibility and solvent stability. The in vitro cell viability of HepG2 cells treated with λ-car-Fe3+ was over 75% at 5 mg/mL of ferric ions, indicating a significant cytotoxicity reduction of ferric ions. The stability of λ-car-Fe3+ complex powder was obviously increased against browning during 60 d storage with zein coating, which was attributed to the prevention of moisture permeation. Zein coated gel beads also performed a slow release of ferric ions in simulated gastrointestinal juices, resulting from the compact and hydrophobic zein surface delaying the dissociation of λ-car-Fe3+ in acidic environment. This λ-car-Fe3+ complex would have a great potential as a safe iron fortifier and facilitate iron supplementary with the advantage to relieve the side effects of iron ions.
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Affiliation(s)
- Meng Shu
- Glyn O. Phillips Hydrocolloid Research Centre, School of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Xiaoxue Yao
- Glyn O. Phillips Hydrocolloid Research Centre, School of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Kao Wu
- Glyn O. Phillips Hydrocolloid Research Centre, School of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Kun Zhang
- Ferguson (Wuhan) Biotechnologies Ltd., Wuhan 430056, China
| | - Katsuyoshi Nishinari
- Glyn O. Phillips Hydrocolloid Research Centre, School of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Glyn O Phillips
- Glyn O. Phillips Hydrocolloid Research Centre, School of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Xiaolin Yao
- Glyn O. Phillips Hydrocolloid Research Centre, School of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China; Ferguson (Wuhan) Biotechnologies Ltd., Wuhan 430056, China; School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Fatang Jiang
- Glyn O. Phillips Hydrocolloid Research Centre, School of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China.
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Fan W, Lu H, Wang WX. Aging Influences on the Biokinetics of Functional TiO 2 Nanoparticles with Different Surface Chemistries in Daphnia magna. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:7901-7909. [PMID: 29920079 DOI: 10.1021/acs.est.7b04392] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanoparticles functionalized with various surface capping moieties are now widely used in different fields, thus there is a major need to understand the behavior and fate of these nanoparticles in the environment. The present study investigated the biokinetics of fresh titanium dioxide nanoparticles (TiO2 NPs) or TiO2 NPs aged under artificial sunlight (16 h light: 8 h dark) for 1, 3, and 5 days, respectively. Two commercial functionalized TiO2 NPs (with SiO2 coating or SiO2 and polydimethylsiloxane coating) were employed in this study. Dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FT-IR), and contact angle (CA) measurements demonstrated that the surface properties had changed due to the degradation during aging. The biokinetic parameters including dissolved uptake and depuration rate constant as well as bioconcentration factors were calculated by a biokinetic model. All the biokinetic parameters were significantly dependent on the aging process. Further data analysis showed that the CA of the TiO2 NPs affected the uptake rate constant and the fast compartmental efflux, and both CA and hydrodynamic diameter affected the fast compartmental efflux. These results were due to the changes of corresponding indexes during the aging process. Our work highlighted the necessity of monitoring the physicochemical indexes of functionalized NPs during aging in evaluation of their environmental risks.
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Affiliation(s)
- Wenhong Fan
- School of Space and Environment , Beihang University , Beijing 100191 , P. R. China
| | - Huiting Lu
- School of Space and Environment , Beihang University , Beijing 100191 , P. R. China
- Division of Life Science , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , Hong Kong
| | - Wen-Xiong Wang
- Marine Environmental Laboratory , HKUST Shenzhen Research Institute , Shenzhen 518057 , P. R. China
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8
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Hogan M, Chen YT, Kolhatkar AG, Candelari CJ, Madala S, Lee TR, Birla R. Conditioning of Cardiovascular Tissue Using a Noncontact Magnetic Stretch Bioreactor with Embedded Magnetic Nanoparticles. ACS Biomater Sci Eng 2016; 2:1619-1629. [DOI: 10.1021/acsbiomaterials.6b00375] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Matthew Hogan
- Department of Biomedical
Engineering, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 2027, Houston, Texas 77204-5060, United States
| | - Yi-Ting Chen
- Department
of Chemistry, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 5004, Houston, Texas 77204-5060, United States
| | - Arati G. Kolhatkar
- Department
of Chemistry, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 5004, Houston, Texas 77204-5060, United States
| | - Christopher J. Candelari
- Department of Biomedical
Engineering, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 2027, Houston, Texas 77204-5060, United States
| | - Sridhar Madala
- Indus Instruments, 721 Tristar Drive, Webster, Texas 77598, United States
| | - T. Randall Lee
- Department
of Chemistry, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 5004, Houston, Texas 77204-5060, United States
| | - Ravi Birla
- Department of Biomedical
Engineering, Science and Engineering Research Center (SERC-Building
545), University of Houston, 3605 Cullen Boulevard, Room 2027, Houston, Texas 77204-5060, United States
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9
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Ferreira MPA, Ranjan S, Correia AMR, Mäkilä EM, Kinnunen SM, Zhang H, Shahbazi MA, Almeida PV, Salonen JJ, Ruskoaho HJ, Airaksinen AJ, Hirvonen JT, Santos HA. In vitro and in vivo assessment of heart-homing porous silicon nanoparticles. Biomaterials 2016; 94:93-104. [PMID: 27107168 DOI: 10.1016/j.biomaterials.2016.03.046] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 03/01/2016] [Accepted: 03/30/2016] [Indexed: 12/13/2022]
Abstract
Chronic heart failure, predominantly developed after myocardial infarction, is a leading cause of high mortality worldwide. As existing therapies have still limited success, natural and/or synthetic nanomaterials are emerging alternatives for the therapy of heart diseases. Therefore, we aimed to functionalize undecylenic acid thermally hydrocarbonized porous silicon nanoparticles (NPs) with different targeting peptides to improve the NP's accumulation in different cardiac cells (primary cardiomyocytes, non-myocytes, and H9c2 cardiomyoblasts), additionally to investigate the behavior of the heart-targeted NPs in vivo. The toxicity profiles of the NPs evaluated in the three heart-type cells showed low toxicity at concentrations up to 50 μg/mL. Qualitative and quantitative cellular uptake revealed a significant increase in the accumulation of atrial natriuretic peptide (ANP)-modified NPs in primary cardiomyocytes, non-myocytes and H9c2 cells, and in hypoxic primary cardiomyocytes and non-myocytes. Competitive uptake studies in primary cardiomyocytes showed the internalization of ANP-modified NPs takes place via the guanylate cyclase-A receptor. When a myocardial infarction rat model was induced by isoprenaline and the peptide-modified [(111)In]NPs administered intravenously, the targeting peptides, particularly peptide 2, improved the NPs' accumulation in the heart up to 3.0-fold, at 10 min. This study highlights the potential of these peptide-modified nanosystems for future applications in heart diseases.
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Affiliation(s)
- Mónica P A Ferreira
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland.
| | - Sanjeev Ranjan
- Laboratory of Radiochemistry, Department of Chemistry, University of Helsinki, FI-00014 Helsinki, Finland
| | - Alexandra M R Correia
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Ermei M Mäkilä
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Sini M Kinnunen
- Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Hongbo Zhang
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland; School of Applied Science and Engineering, Harvard University, 02138 Cambridge MA, USA
| | - Mohammad-Ali Shahbazi
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Patrick V Almeida
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Jarno J Salonen
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Heikki J Ruskoaho
- Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Anu J Airaksinen
- Laboratory of Radiochemistry, Department of Chemistry, University of Helsinki, FI-00014 Helsinki, Finland
| | - Jouni T Hirvonen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland.
| | - Hélder A Santos
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland.
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Genotoxicity of Superparamagnetic Iron Oxide Nanoparticles in Granulosa Cells. Int J Mol Sci 2015; 16:26280-90. [PMID: 26540051 PMCID: PMC4661819 DOI: 10.3390/ijms161125960] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/13/2015] [Accepted: 10/15/2015] [Indexed: 12/27/2022] Open
Abstract
Nanoparticles that are aimed at targeting cancer cells, but sparing healthy tissue provide an attractive platform of implementation for hyperthermia or as carriers of chemotherapeutics. According to the literature, diverse effects of nanoparticles relating to mammalian reproductive tissue are described. To address the impact of nanoparticles on cyto- and genotoxicity concerning the reproductive system, we examined the effect of superparamagnetic iron oxide nanoparticles (SPIONs) on granulosa cells, which are very important for ovarian function and female fertility. Human granulosa cells (HLG-5) were treated with SPIONs, either coated with lauric acid (SEONLA) only, or additionally with a protein corona of bovine serum albumin (BSA; SEONLA-BSA), or with dextran (SEONDEX). Both micronuclei testing and the detection of γH2A.X revealed no genotoxic effects of SEONLA-BSA, SEONDEX or SEONLA. Thus, it was demonstrated that different coatings of SPIONs improve biocompatibility, especially in terms of genotoxicity towards cells of the reproductive system.
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Canfarotta F, Piletsky SA. Engineered magnetic nanoparticles for biomedical applications. Adv Healthc Mater 2014; 3:160-75. [PMID: 24497448 DOI: 10.1002/adhm.201300141] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Indexed: 12/11/2022]
Abstract
In the past decades, magnetic nanoparticles (MNPs) have been used in wide range of diverse applications, ranging from separation to sensing. Here, synthesis and applications of functionalized MNPs in the biomedical field are discussed, in particular in drug delivery, imaging, and cancer therapy, highlighting also recent progresses in the development of multifunctional and stimuli-responsive MNPs. The role of their size, composition, and surface functionalization is analyzed, together with their biocompatibility issues.
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Feswick A, Griffitt RJ, Siebein K, Barber DS. Uptake, retention and internalization of quantum dots in Daphnia is influenced by particle surface functionalization. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 130-131:210-218. [PMID: 23419536 DOI: 10.1016/j.aquatox.2013.01.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 01/04/2013] [Accepted: 01/08/2013] [Indexed: 06/01/2023]
Abstract
Nanomaterials are a diverse group of compounds whose inevitable release into the environment warrants study of the fundamental processes that govern the ingestion, uptake and accumulation in aquatic organisms. Nanomaterials have the ability to transfer to higher trophic levels in aquatic ecosystems, and recent evidence suggests that the surface chemistry of both the nanoparticle and biological membrane can influence uptake kinetics. Therefore, our study investigates the effect of surface functionalization on uptake, internalization and depuration in Daphnia spp. Uncharged (polyethylene glycol; PEG), positively charged (amino-terminated: NH2) and negatively charged (carboxyl-modified; COOH) cadmium selenide/zinc sulfide quantum dots were used to monitor ingestion, uptake and depuration of nanometals in Daphnia magna and Ceriodaphnia dubia over 24h of exposure. These studies demonstrated that particles with higher negative charge (COOH quantum dots) were taken up to a greater extent by Daphnia (259.17±17.70 RFU/20 Daphnia) than either the NH2 (150.01±18.91) or PEG quantum dots (95.17±9.78), however this is likely related to the functional groups attached to the nanoparticles as there were no real differences in zeta potential. Whole body fluorescence associates well with fluorescent microscopic images obtained at the 24h timepoint. Confocal and electron microscopic analysis clearly demonstrated that all three types of quantum dots could cross the intestinal epithelial barrier and be translocated to other cells. Upon cessation of exposure, elimination of all three materials was biphasic with rapid initial clearance that likely represents elimination of material remaining in the GI tract followed by a much slower elimination phase that likely represents elimination of internalized material. These studies demonstrate that daphnids can take up intact nanomaterial from the water column and that this uptake is strongly influenced by particle surface functionalization. In addition, the usefulness of using quantum dots as a proxy for other nanometals (no acute toxicity, clear visualization in electron microscopy), in conjunction with several different imaging techniques in assessing uptake and accumulation of nanoparticles in daphnids was demonstrated.
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Affiliation(s)
- A Feswick
- Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA.
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