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Liolios C, Koutsikou TS, Salvanou EA, Kapiris F, Machairas E, Stampolaki M, Kolocouris A, Efthimiadou EΚ, Bouziotis P. Synthesis and in vitro proof-of-concept studies on bispecific iron oxide magnetic nanoparticles targeting PSMA and GRP receptors for PET/MR imaging of prostate cancer. Int J Pharm 2022; 624:122008. [PMID: 35820513 DOI: 10.1016/j.ijpharm.2022.122008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 06/08/2022] [Accepted: 07/05/2022] [Indexed: 11/20/2022]
Abstract
Prostate cancer (PCa) is the most common malignancy worldwide in men. This is a proof-of-concept study describing the development of 68Ga-magnetic iron oxide nanoparticles (mNP) targeting prostate specific membrane antigen (PSMA) and gastrin releasing peptide (GRPR) receptors as potential tools for diagnosis of PCa with PET/MRI. Two pharmacophores targeting PSMA, 1, and GRPR, 2, were coupled to mNPs carrying -SH (mNP-S1/2) or -NH2 (mNP-N1/2) groups. The mNP-S1/2 and mNP-N1/2 were characterized for their size, zeta potential, structure, and efficiency of functionalization using dynamic light scattering (DLS), FT-IR and RP-HPLC. A direct 68Ga-labelling procedure was followed, where 68Ga-mNP-N1/2 proved superior to 68Ga-mNP-S1/2 regarding radiolabelling efficiency, and thus were further evaluated in vitro. Toxicity studies in PCa cells (LNCaP, PC-3) showed low toxicity, and minimal hemolysis of red blood cells. In vitro assays in cells expressing PSMA (LNCaP), and GRPR (PC-3), showed specific time-dependent binding (40 min to plateau), high avidity (PC-3: Kd = 28.27 nM, LNCaP: Kd = 11.49 nM) and high internalization rates for 68Ga-mNP-N1/2 in both cell lines.
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Abstract
Magnetic iron oxide nanoparticles (MNPs) have been under intense investigation for at least the last five decades as they show enormous potential for many biomedical applications, such as biomolecule separation, MRI imaging and hyperthermia. Moreover, a large area of research on these nanostructures is concerned with their use as carriers of drugs, nucleic acids, peptides and other biologically active compounds, often leading to the development of targeted therapies. The uniqueness of MNPs is due to their nanometric size and unique magnetic properties. In addition, iron ions, which, along with oxygen, are a part of the MNPs, belong to the trace elements in the body. Therefore, after digesting MNPs in lysosomes, iron ions are incorporated into the natural circulation of this element in the body, which reduces the risk of excessive storage of nanoparticles. Still, one of the key issues for the therapeutic applications of magnetic nanoparticles is their pharmacokinetics which is reflected in the circulation time of MNPs in the bloodstream. These characteristics depend on many factors, such as the size and charge of MNPs, the nature of the polymers and any molecules attached to their surface, and other. Since the pharmacokinetics depends on the resultant of the physicochemical properties of nanoparticles, research should be carried out individually for all the nanostructures designed. Almost every year there are new reports on the results of studies on the pharmacokinetics of specific magnetic nanoparticles, thus it is very important to follow the achievements on this matter. This paper reviews the latest findings in this field. The mechanism of action of the mononuclear phagocytic system and the half-lives of a wide range of nanostructures are presented. Moreover, factors affecting clearance such as hydrodynamic and core size, core morphology and coatings molecules, surface charge and technical aspects have been described.
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Affiliation(s)
- Julia Nowak-Jary
- Department of Biotechnology, Institute of Biological Sciences, University of Zielona Gora, Prof. Z. Szafrana 1, 65-516, Zielona Gora, Poland.
| | - Beata Machnicka
- Department of Biotechnology, Institute of Biological Sciences, University of Zielona Gora, Prof. Z. Szafrana 1, 65-516, Zielona Gora, Poland
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Antal I, Koneracka M, Kubovcikova M, Zavisova V, Jurikova A, Khmara I, Omastova M, Micusik M, Barathova M, Jelenska L, Kajanova I, Zatovicova M, Pastorekova S. Targeting of carbonic anhydrase IX-positive cancer cells by glycine-coated superparamagnetic nanoparticles. Colloids Surf B Biointerfaces 2021; 205:111893. [PMID: 34116397 DOI: 10.1016/j.colsurfb.2021.111893] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 05/17/2021] [Accepted: 05/30/2021] [Indexed: 11/16/2022]
Abstract
Antibody-modified magnetic nanoparticles were prepared to study their cellular uptake in 3D multicellular spheroidal cell cultures. For this purpose, carbonic anhydrase IX specific monoclonal antibody VII/20 was selected to conjugate on the surface of positively charged glycine coated magnetic nanoparticles in a form of a stable magnetic fluid. In this work, glycine-functionalized magnetic nanoparticles were characterized by different methods. X-ray photoelectron analysis confirmed the binding of glycine to the magnetic nanoparticles, and quantification of the glycine coating on the surface of the magnetic nanoparticles was conducted by thermogravimetric analysis. The optimal weight ratio of glycine to magnetic nanoparticles was determined to be 5 showing good colloid stability due to the high surface charge density of protonated glycine coating shown by the great zeta potential (⁓40 mV). The antibody conjugation to the functionalized magnetic nanoparticles was performed at an antibody to magnetic nanoparticles weight ratio equal to 0.5. Applications of antibody-modified magnetic nanoparticles in cancer therapy rely on their ability to specifically target cancer tissues and enter the tumour intracellular space. Here, we show that antibody coupled nanoparticle internalization was triggered by selective binding to tumour cells expressing hypoxic marker carbonic anhydrase IX. Moreover, our results confirmed specific penetration of conjugated nanoparticles into the tumour cell spheroids.
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Affiliation(s)
- Iryna Antal
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - Martina Koneracka
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia.
| | - Martina Kubovcikova
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - Vlasta Zavisova
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - Alena Jurikova
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - Iryna Khmara
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - Maria Omastova
- Polymer Institute Slovak Academy of Sciences, Dubravska cesta 9, 845 41, Bratislava 45, Slovakia
| | - Matej Micusik
- Polymer Institute Slovak Academy of Sciences, Dubravska cesta 9, 845 41, Bratislava 45, Slovakia
| | - Monika Barathova
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Lenka Jelenska
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Ivana Kajanova
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Miriam Zatovicova
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Silvia Pastorekova
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
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Cotchim S, Thavarungkul P, Kanatharana P, Thanakiatkrai P, Kitpipit T, Limbut W. Extraction and electrochemical detection for quantification of trace-level DNA. Mikrochim Acta 2021; 188:180. [PMID: 33950304 DOI: 10.1007/s00604-021-04825-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 04/06/2021] [Indexed: 11/30/2022]
Abstract
A novel strategy was developed to extract, detect, and quantify trace-level DNA. For the extraction step, a composite of methylene blue (MB), poly(acrylic acid) (PAA), and modified iron oxide magnetic nanoparticles (IOMNPs) (PAA/IOMNPs) was used to adsorb DNA from the sample. MB-PAA/IOMNPs with adsorbed DNA were then separated from the solution with an external magnet and MB-DNA was eluted from PAA/IOMNPs with acetic acid. In the detection step, MB-DNA was adsorbed on the surface of 3-aminopropyltriethoxysilane (APTES)-modified glassy carbon electrode via electrostatic force. DNA was quantified by measuring the oxidation peak of MB at a potential -0.13 V vs. Ag/AgCl using differential pulse voltammetry. Under the optimal experimental conditions, the DNA sensor showed linear ranges from 0.001 to 0.005 pg μL-1, 0.005 to 0.070 pg μL-1, and 0.070 to 0.400 pg μL-1 and a limit of detection of 0.87 fg μL-1. The proposed sensor detected trace DNA in real samples with recoveries that ranged from 80.4 to 90.4%.
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Affiliation(s)
- Suparat Cotchim
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Panote Thavarungkul
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Proespichaya Kanatharana
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Phuvadol Thanakiatkrai
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Thitika Kitpipit
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Warakorn Limbut
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.
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Pershina AG, Brikunova OY, Demin AM, Abakumov MA, Vaneev AN, Naumenko VA, Erofeev AS, Gorelkin PV, Nizamov TR, Muslimov AR, Timin AS, Malkeyeva D, Kiseleva E, Vtorushin SV, Larionova IV, Gereng EA, Minin AS, Murzakaev AM, Krasnov VP, Majouga AG, Ogorodova LM. Variation in tumor pH affects pH-triggered delivery of peptide-modified magnetic nanoparticles. Nanomedicine 2021; 32:102317. [PMID: 33096245 DOI: 10.1016/j.nano.2020.102317] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 09/11/2020] [Accepted: 10/07/2020] [Indexed: 01/27/2023]
Abstract
Acidification of the extracellular matrix, an intrinsic characteristic of many solid tumors, is widely exploited for physiologically triggered delivery of contrast agents, drugs, and nanoparticles to tumor. However, pH of tumor microenvironment shows intra- and inter-tumor variation. Herein, we investigate the impact of this variation on pH-triggered delivery of magnetic nanoparticles (MNPs) modified with pH-(low)-insertion peptide (pHLIP). Fluorescent flow cytometry, laser confocal scanning microscopy and transmission electron microscopy data proved that pHLIP-conjugated MNPs interacted with 4T1 cells in two-dimensional culture and in spheroids more effectively at pH 6.4 than at pH 7.2, and entered the cell via clathrin-independent endocytosis. The accumulation efficiency of pHLIP-conjugated MNPs in 4T1 tumors after their intravenous injection, monitored in vivo by magnetic resonance imaging, showed variation. Analysis of the tumor pH profiles recorded with implementation of original nanoprobe pH sensor, revealed obvious correlation between pH measured in the tumor with the amount of accumulated MNPs.
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Affiliation(s)
- Alexandra G Pershina
- Siberian State Medical University, Tomsk, Russia; Research School of Chemical and Biomedical Engineering, National Research Tomsk Polytechnic University, Tomsk, Russia.
| | | | - Alexander M Demin
- Postovsky Institute of Organic Synthesis UB RAS, Yekaterinburg, Russia
| | - Maxim A Abakumov
- National University of Science and Technology MISiS, Moscow, Russia
| | - Alexander N Vaneev
- National University of Science and Technology MISiS, Moscow, Russia; Lomonosov Moscow State University, Moscow, Russia
| | - Victor A Naumenko
- National University of Science and Technology MISiS, Moscow, Russia; V. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia
| | - Alexander S Erofeev
- National University of Science and Technology MISiS, Moscow, Russia; Lomonosov Moscow State University, Moscow, Russia
| | - Peter V Gorelkin
- National University of Science and Technology MISiS, Moscow, Russia; Medical Nanotechnology LLC, Moscow, Russia
| | - Timur R Nizamov
- National University of Science and Technology MISiS, Moscow, Russia
| | - Albert R Muslimov
- Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Alexander S Timin
- Research School of Chemical and Biomedical Engineering, National Research Tomsk Polytechnic University, Tomsk, Russia; Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Dina Malkeyeva
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Elena Kiseleva
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Sergey V Vtorushin
- Siberian State Medical University, Tomsk, Russia; Cancer Research Institute, Tomsk National Research Medical Center RAS, Tomsk, Russia
| | - Irina V Larionova
- Cancer Research Institute, Tomsk National Research Medical Center RAS, Tomsk, Russia; National Research Tomsk State University, Tomsk, Russia
| | | | - Artem S Minin
- Mikheev Institute of Metal Physics UB RAS, Yekaterinburg, Russia
| | - Aidar M Murzakaev
- Institute of Electrophysics UB RAS, Yekaterinburg, Russia; Ural Federal University, Yekaterinburg, Russia
| | - Victor P Krasnov
- Postovsky Institute of Organic Synthesis UB RAS, Yekaterinburg, Russia; Ural Federal University, Yekaterinburg, Russia
| | - Alexander G Majouga
- National University of Science and Technology MISiS, Moscow, Russia; Lomonosov Moscow State University, Moscow, Russia; Dmitry Mendeleev University of Chemical Technology of Russia, Moscow, Russia
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Prokopiou E D, Pissas M, Fibbi G, Margheri F, Kalska-Szostko B, Papanastasiou G, Jansen M, Wang J, Laurenzana A, Efthimiadou K E. Synthesis and characterization of modified magnetic nanoparticles as theranostic agents: in vitro safety assessment in healthy cells. Toxicol In Vitro 2021; 72:105094. [PMID: 33460736 DOI: 10.1016/j.tiv.2021.105094] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/24/2020] [Accepted: 01/11/2021] [Indexed: 12/27/2022]
Abstract
Over the past few decades nanotechnology has paved its way into cancer treatment procedures with the use of nanoparticles (NPs) for contrast media and therapeutic agents. Iron based NPs are the most investigated since they can be used for drug delivery, imaging and when magnetically activate employed as local heat sources in cancer hyperthermia. In this work, was performed synthesis, characterization and biological evaluation of different types of iron oxide nanoparticles (mNPs'), as promising material for tumor hyperthermia. The surface of mNPs' has modified with inorganic stabilizing agents to particularly improve characteristics such as their magnetic properties, colloidal stability and biocompatibility. The successful coating of mNPs' was confirmed by morphological and structural characterization by transmission electron microscopy (TEM) and Fourier-Transform Infra-Red spectroscopy (FT-IR), while their hydrodynamic diameter was studied by using Dynamic light scattering (DLS). X-ray Diffraction (XRD) proved that the crystallite phase of mNPs' is the same with the pattern of magnetite. Superparamagnetic behavior and mNPs' response under the application of alternating magnetic field (AMF) were also thoroughly investigated and showed good heating efficiency in magnetic hyperthermia experiments. The contrast ability in magnetic resonance imaging (MRI) is also discussed indicating that mNPs are negative MRI contrast types. Nonetheless the effects of mNPs on cell viability was performed by MTT on human keratinocytes, human embryonic kidney cells, endothelial cells and by hemolytic assay on erythrocytes. In healthy keratinocytes wound healing assay in different time intervals was performed, assessing both the cell migration and wound closure. Endothelial cells have also been studied in functional activity performing capillary morphogenesis. In vitro studies showed that mNPs are safely taken by the healthy cells and do not interfere with the biological processes such as cell migration and motility.
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Affiliation(s)
- Danai Prokopiou E
- Inorganic Chemistry Laboratory, Chemistry Department, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou 157 71, Greece; Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 153 41 Aghia Paraskevi Attikis, Greece
| | - Michael Pissas
- Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 153 41 Aghia Paraskevi Attikis, Greece
| | - Gabriella Fibbi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale G.B. Morgagni, 50, Florence 50134, Italy
| | - Francesca Margheri
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale G.B. Morgagni, 50, Florence 50134, Italy
| | - Beata Kalska-Szostko
- Institute of Chemistry, Faculty of Biology and Chemistry, University of Bialystok, Ciołkowskiego 1K, Białystok 15-245, Poland
| | - Giorgos Papanastasiou
- Edinburgh Imaging, Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Maurits Jansen
- Edinburgh Imaging, Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Jansen Wang
- Edinburgh Imaging, Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Anna Laurenzana
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale G.B. Morgagni, 50, Florence 50134, Italy.
| | - Eleni Efthimiadou K
- Inorganic Chemistry Laboratory, Chemistry Department, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou 157 71, Greece; Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 153 41 Aghia Paraskevi Attikis, Greece.
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Wu R, Xing X, Corredig M, Meng B, Griffiths MW. Concentration of hepatitis A virus in milk using protamine-coated iron oxide (Fe 3O 4) magnetic nanoparticles. Food Microbiol 2019; 84:103236. [PMID: 31421754 DOI: 10.1016/j.fm.2019.05.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 05/01/2019] [Accepted: 05/30/2019] [Indexed: 12/11/2022]
Abstract
Hepatitis A virus (HAV) continues to be the leading cause of viral hepatitis. HAV outbreaks have been linked to the consumption of milk, but methods for HAV detection in milk are very limited. We developed a method to concentrate HAV in milk using protamine-coated iron oxide (Fe3O4) magnetic nanoparticles (PMNPs). In this study, protamine was covalently coated on the surface of the MNPs (20-30 nm) by a three-step chemical reaction. The successful linkage of protamine to the MNPs was confirmed by Fourier transform infrared spectroscopy (FTIR), zeta potential, and transmission electron microscopy (TEM). When used for concentrating HAV from 40 mL of milk, 50 μL of PMNPs were added to the sample and mixed for 20 min by gentle rotation, followed by a magnet capture for 30 min. The captured PMNPs were washed with glycine buffer (0.05 M glycine, 0.14 M NaCl, 0.2% (v/v) Tween 20, pH 9.0) and HAV RNA was extracted using the QIAamp MinElute Virus Spin Kit and quantified by real-time RT-PCR. The method showed a detection limit of 8.3 × 100 PFU of HAV in milk. The whole concentration procedure could be completed in approximately 50 min. The developed method was simple, inexpensive, and easy-to-perform.
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Affiliation(s)
- Ruiqin Wu
- Department of Food Science, University of Guelph, 50 Stone Road East, Guelph, ON, N1G 2W1, Canada; Canadian Research Institute for Food Safety, 43 McGilvray Street, Guelph, ON, N1G 2W1, Canada
| | - Xiaohui Xing
- Department of Food Science, University of Guelph, 50 Stone Road East, Guelph, ON, N1G 2W1, Canada
| | - Milena Corredig
- Department of Food Science, University of Guelph, 50 Stone Road East, Guelph, ON, N1G 2W1, Canada
| | - Baozhong Meng
- Department of Molecular and Cellular Biology, University of Guelph, 50 Stone Road East, Guelph, ON, N1G 2W1, Canada
| | - Mansel W Griffiths
- Department of Food Science, University of Guelph, 50 Stone Road East, Guelph, ON, N1G 2W1, Canada; Canadian Research Institute for Food Safety, 43 McGilvray Street, Guelph, ON, N1G 2W1, Canada.
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8
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Menon PK, Sharma A, Lafuente JV, Muresanu DF, Aguilar ZP, Wang YA, Patnaik R, Mössler H, Sharma HS. Intravenous Administration of Functionalized Magnetic Iron Oxide Nanoparticles Does Not Induce CNS Injury in the Rat: Influence of Spinal Cord Trauma and Cerebrolysin Treatment. Int Rev Neurobiol 2017; 137:47-63. [PMID: 29132543 DOI: 10.1016/bs.irn.2017.08.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Influence of iron oxide magnetic nanoparticles (IOMNPs, 10nm in diameter, 0.25 or 0.50mg/mL in 100μL, i.v.) on the blood-brain barrier (BBB) permeability, edema formation, and neuronal or glial changes within 4-24h after administration was examined in normal rats and after a focal spinal cord injury (SCI). Furthermore, effect of cerebrolysin, a balanced composition of several neurotrophic factors, and active peptide fragments was also evaluated on IOMNP-induced changes in central nervous system (CNS) pathology. The SCI was inflicted in rats by making a longitudinal incision into the right dorsal horn of the T10-11 segments and allowed to survive 4 or 24h after trauma. Cerebrolysin (2.5mL/kg, i.v.) was given either 30min before IOMNP injection in the 4-h SCI group or 4h after injury in the 24-h survival groups. Control group received cerebrolysin in identical situation following IOMNP administration. In all groups, leakage of serum albumin in the CNS as a marker of BBB breakdown and activation of astrocytes using glial fibrillary acidic protein was evaluated by immunohistochemistry. The neuronal injury was examined by Nissl staining. The IOMNPs alone in either low or high doses did not induce CNS pathology either following 4 or 24h after administration. However, administration of IOMNPs in SCI group slightly enhanced the pathological changes in the CNS after 24h but not 4h after trauma. Cerebrolysin treatment markedly attenuated IOMNP-induced aggravation of SCI-induced cord pathology and induced significant neuroprotection. These observations are the first to show that IOMNPs are safe for the CNS and cerebrolysin treatment prevented CNS pathology following a combination of trauma and IOMNP injection. This indicated that cerebrolysin might be used as adjunct therapy during IOMNP administration in disease conditions, not reported earlier.
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Nosrati H, Salehiabar M, Manjili HK, Danafar H, Davaran S. Preparation of magnetic albumin nanoparticles via a simple and one-pot desolvation and co-precipitation method for medical and pharmaceutical applications. Int J Biol Macromol 2018; 108:909-15. [PMID: 29101048 DOI: 10.1016/j.ijbiomac.2017.10.180] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/28/2017] [Accepted: 10/30/2017] [Indexed: 11/22/2022]
Abstract
In this study, iron oxide magnetic bovine serum albumin core-shell nanoparticles (BSA coated IONPs) with narrow particle size distribution were synthesized under one-pot reaction via the desolvation and chemical co-precipitation method. Functionalized IONPs were characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM) techniques. Furthermore, vibrating sample magnetometer (VSM) analysis show these nanoparticles (NPs) have an excellent magnetic properties. Cellular toxicity of IONPs was also investigated on HFF2 cell lines. Additionally, a hemolysis test of as prepared core-shell NPs were performed. The presence of albumin as a biomolecule coating on the surface of IONPs showed an improving effect to reduce the cytotoxicity. The properties of the designed NPs propose the BSA coated IONPs as a promising candidate for multifunctional biomedical applications.
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Sundaresan V, Menon JU, Rahimi M, Nguyen KT, Wadajkar AS. Dual-responsive polymer-coated iron oxide nanoparticles for drug delivery and imaging applications. Int J Pharm 2014; 466:1-7. [PMID: 24607216 PMCID: PMC4642438 DOI: 10.1016/j.ijpharm.2014.03.016] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 03/03/2014] [Accepted: 03/03/2014] [Indexed: 11/19/2022]
Abstract
We reported the synthesis and characterization of dual-responsive poly(N-isopropylacrylamide-acrylamide-chitosan) (PAC)-coated magnetic nanoparticles (MNPs) for controlled and targeted drug delivery and imaging applications. The PAC-MNPs size was about 150nm with 70% iron mass content and excellent superparamagnetic properties. PAC-MNPs loaded with anti-cancer drug doxorubicin showed dual-responsive drug release characteristics with the maximum release of drugs at 40°C (∼78%) than at 37°C (∼33%) and at pH of 6 (∼55%) than at pH of 7.4 (∼28%) after 21 days. Further, the conjugation of prostate cancer-specific R11 peptides increased the uptake of PAC-MNPs by prostate cancer PC3 cells. The dose-dependent cellular uptake of the nanoparticles was also significantly increased with the presence of 1.3T magnetic field. The nanoparticles demonstrated cytocompatibility up to concentrations of 500μg/ml when incubated over a period of 24h with human dermal fibroblasts and normal prostate epithelial cells. Finally, pharmacokinetic studies indicated that doxorubicin-loaded PAC-MNPs caused significant prostate cancer cell death at 40°C than at 37°C, thereby confirming the temperature-dependent drug release kinetics and in vitro therapeutic efficacy. Future evaluation of in vivo therapeutic efficacy of targeted image-guided cancer therapy using R11-PAC-MNPs will reinforce a significant impact of the multifunctional PAC-MNPs on the future drug delivery systems.
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Affiliation(s)
- Varsha Sundaresan
- Department of Bioengineering, The University of Texas at Arlington, Arlington, TX 76019, United States; Joint Biomedical Engineering Program between The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, TX 75390, United States
| | - Jyothi U Menon
- Department of Bioengineering, The University of Texas at Arlington, Arlington, TX 76019, United States; Joint Biomedical Engineering Program between The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, TX 75390, United States
| | - Maham Rahimi
- Department of Vascular Surgery, University of Cincinnati, OH 45267, United States
| | - Kytai T Nguyen
- Department of Bioengineering, The University of Texas at Arlington, Arlington, TX 76019, United States; Joint Biomedical Engineering Program between The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, TX 75390, United States
| | - Aniket S Wadajkar
- Department of Bioengineering, The University of Texas at Arlington, Arlington, TX 76019, United States; Joint Biomedical Engineering Program between The University of Texas at Arlington and The University of Texas Southwestern Medical Center, Dallas, TX 75390, United States.
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