1
|
Dallet L, Stanicki D, Voisin P, Miraux S, Ribot EJ. Micron-sized iron oxide particles for both MRI cell tracking and magnetic fluid hyperthermia treatment. Sci Rep 2021; 11:3286. [PMID: 33558583 PMCID: PMC7870900 DOI: 10.1038/s41598-021-82095-6] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 01/14/2021] [Indexed: 12/17/2022] Open
Abstract
Iron oxide particles (IOP) are commonly used for Cellular Magnetic Resonance Imaging (MRI) and in combination with several treatments, like Magnetic Fluid Hyperthermia (MFH), due to the rise in temperature they provoke under an Alternating Magnetic Field (AMF). Micrometric IOP have a high sensitivity of detection. Nevertheless, little is known about their internalization processes or their potential heat power. Two micrometric commercial IOP (from Bangs Laboratories and Chemicell) were characterized by Transmission Electron Microscopy (TEM) and their endocytic pathways into glioma cells were analyzed. Their Specific Absorption Rate (SAR) and cytotoxicity were evaluated using a commercial AMF inductor. T2-weighted imaging was used to monitor tumor growth in vivo after MFH treatment in mice. The two micron-sized IOP had similar structures and r2 relaxivities (100 mM-1 s-1) but involved different endocytic pathways. Only ScreenMAG particles generated a significant rise in temperature following AMF (SAR = 113 W g-1 Fe). After 1 h of AMF exposure, 60% of ScreenMAG-labeled cells died. Translated to a glioma model, 89% of mice responded to the treatment with smaller tumor volume 42 days post-implantation. Micrometric particles were investigated from their characterization to their intracellular internalization pathways and applied in one in vivo cancer treatment, i.e. MFH.
Collapse
Affiliation(s)
- Laurence Dallet
- Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536, CNRS/Univ. Bordeaux, 146 rue Léo Saignat, 33076, Bordeaux, France
| | - Dimitri Stanicki
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 19 avenue Maistriau, 7000, Mons, Belgium
| | - Pierre Voisin
- Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536, CNRS/Univ. Bordeaux, 146 rue Léo Saignat, 33076, Bordeaux, France
| | - Sylvain Miraux
- Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536, CNRS/Univ. Bordeaux, 146 rue Léo Saignat, 33076, Bordeaux, France
| | - Emeline J Ribot
- Centre de Résonance Magnétique des Systèmes Biologiques, UMR 5536, CNRS/Univ. Bordeaux, 146 rue Léo Saignat, 33076, Bordeaux, France.
| |
Collapse
|
2
|
Dold S, Zimmermann MB, Jeroense F, Zeder C, Habeych E, Galaffu N, Grathwohl D, Tajeri Foman J, Merinat S, Rey B, Sabatier M, Moretti D. Iron bioavailability from bouillon fortified with a novel ferric phytate compound: a stable iron isotope study in healthy women (part II). Sci Rep 2020; 10:5339. [PMID: 32210349 PMCID: PMC7093532 DOI: 10.1038/s41598-020-62307-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 03/04/2020] [Indexed: 11/23/2022] Open
Abstract
Bouillon cubes are widely consumed and when fortified with iron could contribute in preventing iron deficiency. We report the development (part I) and evaluation (current part II) of a novel ferric phytate compound to be used as iron fortificant in condiments such as bouillon. Ferric pyrophosphate (FePP), is the compound of choice due to its high stability in foods, but has a modest absorption in humans. Our objective was to assess iron bioavailability from a novel iron fortificant consisting of ferric iron complexed with phytic acid and hydrolyzed corn protein (Fe-PA-HCP), used in bouillon with and without an inhibitory food matrix. In a randomised single blind, cross-over study, we measured iron absorption in healthy adult women (n = 22). In vitro iron bioaccessibility was assessed using a Caco-2 cell model. Iron absorption from Fe-PA-HCP was 1.5% and 4.1% in bouillon with and without inhibitory matrix, respectively. Relative iron bioavailability to FeSO4 was 2.4 times higher than from FePP in bouillon (17% vs 7%) and 5.2 times higher when consumed with the inhibitory meal (41% vs 8%). Similar results were found in vitro. Fe-PA-HCP has a higher relative bioavailability versus FePP, especially when bouillon is served with an inhibitory food matrix.
Collapse
Affiliation(s)
- Susanne Dold
- ETH Zurich, Laboratory of Human Nutrition, Zurich, Switzerland
| | | | | | | | - Edwin Habeych
- Nestlé Research, Société des Produits Nestlé SA, Lausanne, Switzerland
| | - Nicola Galaffu
- Nestlé Research, Société des Produits Nestlé SA, Lausanne, Switzerland
| | - Dominik Grathwohl
- Nestlé Research, Société des Produits Nestlé SA, Lausanne, Switzerland
| | | | - Sylvie Merinat
- Nestlé Research, Société des Produits Nestlé SA, Lausanne, Switzerland
| | - Brigitte Rey
- Nestlé Research, Société des Produits Nestlé SA, Lausanne, Switzerland
| | - Magalie Sabatier
- Nestlé Research, Société des Produits Nestlé SA, Lausanne, Switzerland
| | - Diego Moretti
- ETH Zurich, Laboratory of Human Nutrition, Zurich, Switzerland.
- Swiss Distance University of Applied Sciences, Nutrition Research, Health Department, Regensdorf, Zurich, Switzerland.
| |
Collapse
|
3
|
Chen P, Zhang HM, Yao BM, Chen SC, Sun GX, Zhu YG. Bioavailable arsenic and amorphous iron oxides provide reliable predictions for arsenic transfer in soil-wheat system. J Hazard Mater 2020; 383:121160. [PMID: 31518812 DOI: 10.1016/j.jhazmat.2019.121160] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 03/16/2019] [Revised: 09/03/2019] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
The application of current soil quality standards based on total arsenic (As) fails to assess the ecological risks of soil arsenic or to ensure the safety of crops and foods. In this study, bioavailable arsenic instead of total arsenic was applied to improve predictive models for arsenic transfer from soil to wheat (Triticum turgidum L.). The stepwise multiple-linear regression analysis showed that bioavailable arsenic and amorphous iron oxides (FeOX) were the two most important factors contributing to arsenic accumulation in wheat grain, with the explained percentage of variation being up to 82%. Compared with the bioavailable arsenic extracted by NH4H2PO4, bioavailable arsenic extracted by HNO3 from soils generated better predictions of the amount of arsenic in grain. The best reliable model was log[Asgrain] = 0.917 log[HNO3-As] - 0.452 log[FeOX] - 1.507 (R2 = 0.82, P < 0.001). Consistently, bioavailable arsenic and FeOX were also the key factors to predict arsenic accumulation in wheat straw, leaves and spikes. Our prediction models was successfully verified for three independent soils. Our results highlight the role of soil bioavailable heavy metals in predicting their transfer in soil-plant systems and can be used to improve existing Chinese soil quality standards.
Collapse
Affiliation(s)
- Peng Chen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, the Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences. Beijing, 100049, China
| | - Hong-Mei Zhang
- Jiaxing Academy of Agricultural Sciences, Xiuzhou District, Jiaxing, 314016, China
| | - Bao-Min Yao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, the Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences. Beijing, 100049, China
| | - Song-Can Chen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, the Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences. Beijing, 100049, China
| | - Guo-Xin Sun
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, the Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences. Beijing, 100049, China.
| | - Yong-Guan Zhu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, the Chinese Academy of Sciences, Beijing, 100085, China; Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China; University of Chinese Academy of Sciences. Beijing, 100049, China
| |
Collapse
|
4
|
Ding Y, Zhu X, Li X, Zhang H, Wu M, Liu J, Palmen M, Roubert B, Li C. Pharmacokinetic, Pharmacodynamic, and Safety Profiles of Ferric Carboxymaltose in Chinese Patients with Iron-deficiency Anemia. Clin Ther 2020; 42:276-285. [PMID: 31937462 DOI: 10.1016/j.clinthera.2019.12.010] [Citation(s) in RCA: 5] [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: 08/19/2019] [Revised: 12/12/2019] [Accepted: 12/18/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE Iron deficiency (ID) is one of the most commonly known nutritional deficiencies and is considered the primary cause of anemia (iron-deficiency anemia). Ferric carboxymaltose (FCM), an intravenous iron preparation, has been widely used for >10 years for iron-deficiency anemia treatment worldwide because of its many advantages. METHODS This single-center, open-label, single dose escalation study in Chinese subjects was designed to assess the pharmacokinetic/pharmacodynamic parameters and safety of FCM in this population. The first 12 subjects received a 500-mg dose; after assessing safety data from the first 6 subjects in this cohort, another 12 subjects were assigned to the 1000-mg dose cohort. FINDINGS After an infusion of FCM over 15 min, a rapid dose-dependent increase in total serum iron levels was observed with a median Tmax of 30 min following the start of the infusion for both cohorts. The Cmax and AUC for the 1000-mg dose were ~1.8-fold (p = 0.2929) and 2.3-fold (p = 0.0318) those associated with the 500-mg dose, respectively. Mean terminal t1/2 values were 12.3 and 10.5 h for the 2 cohorts. The renal elimination of FCM was negligible (<0.1%). Increase in mean serum iron levels and ferritin concentrations showed dose dependency. Iron-binding capacity was transiently well utilized after dosing, as indicated by transferrin saturation >88% with 500-mg FCM and >90% with 1000-mg FCM. Hemoglobin levels did not show significant changes during the 7-day observation period, whereas mean reticulocyte counts significantly increased in both cohorts, suggesting activation of the hematopoietic system. FCM was well tolerated in these Chinese subjects. No new or unexpected treatment-emergent adverse events were attributable to FCM. IMPLICATIONS The pharmacokinetic/pharmacodynamic and safety profiles in Chinese subjects seemed comparable to those in white and Japanese populations. ChinaDrugTrials.org.cn identifier: CTR20160863.
Collapse
Affiliation(s)
- Yanhua Ding
- Phase 1 Clinical Trial Unit, First Hospital, Jilin University, Changchun, China
| | - Xiaoxue Zhu
- Phase 1 Clinical Trial Unit, First Hospital, Jilin University, Changchun, China
| | - Xiaojiao Li
- Phase 1 Clinical Trial Unit, First Hospital, Jilin University, Changchun, China
| | - Hong Zhang
- Phase 1 Clinical Trial Unit, First Hospital, Jilin University, Changchun, China
| | - Min Wu
- Phase 1 Clinical Trial Unit, First Hospital, Jilin University, Changchun, China
| | - Jingrui Liu
- Phase 1 Clinical Trial Unit, First Hospital, Jilin University, Changchun, China
| | | | | | - Cuiyun Li
- Phase 1 Clinical Trial Unit, First Hospital, Jilin University, Changchun, China.
| |
Collapse
|
5
|
Nie X, Xia L, Wang HL, Chen G, Wu B, Zeng TY, Hong CY, Wang LH, You YZ. Photothermal Therapy Nanomaterials Boosting Transformation of Fe(III) into Fe(II) in Tumor Cells for Highly Improving Chemodynamic Therapy. ACS Appl Mater Interfaces 2019; 11:31735-31742. [PMID: 31393101 DOI: 10.1021/acsami.9b11291] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Chemodynamic therapy based on Fe2+-catalyzed Fenton reaction holds great promise in cancer treatment. However, low-produced hydroxyl radicals in tumor cells constitute its severe challenges because of the fact that Fe2+ with high catalytic activity could be easily oxidized into Fe3+ with low catalytic activity, greatly lowering Fenton reaction efficacy. Here, we codeliver CuS with the iron-containing prodrug into tumor cells. In tumor cells, the overproduced esterase could cleave the phenolic ester bond in the prodrug to release Fe2+, activating Fenton reaction to produce the hydroxyl radical. Meanwhile, CuS could act as a nanocatalyst for continuously catalyzing the regeneration of high-active Fe2+ from low-active Fe3+ to produce enough hydroxyl radicals to efficiently kill tumor cells as well as a photothermal therapy agent for generating hyperthermia for thermal ablation of tumor cells upon NIR irradiation. The results have exhibited that the approach of photothermal therapy nanomaterials boosting transformation of Fe3+ into Fe2+ in tumor cells can highly improve Fenton reaction for efficient chemodynamic therapy. This strategy was demonstrated to have an excellent antitumor activity both in vitro and in vivo, which provides an innovative perspective to Fenton reaction-based chemodynamic therapy.
Collapse
Affiliation(s)
- Xuan Nie
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering , University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Lei Xia
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering , University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Hai-Li Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering , University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Guang Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering , University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Bin Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering , University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Tian-You Zeng
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering , University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Chun-Yan Hong
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering , University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Long-Hai Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering , University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Ye-Zi You
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering , University of Science and Technology of China , Hefei 230026 , P. R. China
| |
Collapse
|
6
|
Liu Y, Guo Z, Li F, Xiao Y, Zhang Y, Bu T, Jia P, Zhe T, Wang L. Multifunctional Magnetic Copper Ferrite Nanoparticles as Fenton-like Reaction and Near-Infrared Photothermal Agents for Synergetic Antibacterial Therapy. ACS Appl Mater Interfaces 2019; 11:31649-31660. [PMID: 31407880 DOI: 10.1021/acsami.9b10096] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Synergistic therapeutic strategies for bacterial infection have attracted extensive attentions owing to their enhanced therapeutic effects and less adverse effects compared with monotherapy. Herein, we report a novel synergistic antibacterial platform that integrates the nanocatalytic antibacterial therapy and photothermal therapy (PTT) by hemoglobin-functionalized copper ferrite nanoparticles (Hb-CFNPs). In the presence of a low concentration of hydrogen peroxide (H2O2), the excellent Fenton and Fenton-like reaction activity of Hb-CFNPs can effectively catalyze the decomposition of H2O2 to produce hydroxyl radicals (·OH), rendering an increase in the permeability of the bacterial cell membrane and the sensitivity to heat. With the assistance of NIR irradiation, hyperthermia generated by Hb-CFNPs can induce the death of the damaged bacteria. Additionally, owing to the outstanding magnetic property of Hb-CFNPs, it can improve the photothermal efficiency by about 20 times via magnetic enrichment, which facilitates to realize excellent bactericidal efficacy at a very low experimental dose (20 μg/mL). In vitro antibacterial experiment shows that this synergistic antibacterial strategy has a broad-spectrum antibacterial property against Gram-negative Escherichia coli (E. coli, 100%) and Gram-positive Staphylococcus aureus (S. aureus, 96.4%). More importantly, in vivo S. aureus-infected abscess treatment studies indicate that Hb-CFNPs can serve as an antibacterial candidate with negligible toxicity to realize synergistic treatment of bacterial infections through catalytic and photothermal effects. Accordingly, this study proposes a novel, high-efficiency, and multifunctional therapeutic system for the treatment of bacterial infection, which will open up a new avenue for the design of synergistic antibacterial systems in the future.
Collapse
Affiliation(s)
- Yingnan Liu
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Zhirong Guo
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Fan Li
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Yaqing Xiao
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Yalan Zhang
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Tong Bu
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Pei Jia
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Taotao Zhe
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| | - Li Wang
- College of Food Science and Engineering , Northwest A&F University , Yangling 712100 , Shaanxi , China
| |
Collapse
|
7
|
Tombuloglu H, Slimani Y, Tombuloglu G, Almessiere M, Baykal A. Uptake and translocation of magnetite (Fe 3O 4) nanoparticles and its impact on photosynthetic genes in barley (Hordeum vulgare L.). Chemosphere 2019; 226:110-122. [PMID: 30925403 DOI: 10.1016/j.chemosphere.2019.03.075] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [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: 12/25/2018] [Revised: 03/03/2019] [Accepted: 03/12/2019] [Indexed: 05/23/2023]
Abstract
This study investigates the fate and impact of iron oxide or magnetite (Fe3O4, ∼13 nm in size) nanoparticles (NPs) in barley (Hordeum vulgare L.), a common crop cultivated around the world. Barley seedlings were grown in hydroponic culture for three weeks to include NPs (125, 250, 500, and 1000 mg/L). Transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM) techniques were used to assess their uptake and translocation. Photosynthesis marker genes were quantified by RT-qPCR. Results revealed that increasing doses of Fe3O4 NPs were gradually enhanced the plant growth up to 500 mg/L, which promoted the fresh weight (FW) respectively ∼19% and ∼88% for leaf and root tissues than the ones for control. No phytotoxic effect was recorded even at high NPs doses. NPs inclusion increased some phenological parameters such as chlorophyll, total soluble protein, number of chloroplasts, and dry weight. High NPs doses dramatically reduced the catalase activity and hydrogen peroxide content, suggesting a possible function of NPs as nanozyme in vivo. TEM observations showed that Fe3O4 NPs penetrated and internalized in the root cells. In leaves, they were mostly existed at the surrounding cell wall, suggesting their translocation from root to shoot without cellular penetration. Further analysis by using VSM confirmed the existence of Fe3O4 NPs in leaves which result in dramatic alterations of the photosystem genes (PetA, psaA, BCA and psbA). In conclusion, barley plants uptake and translocate Fe3O4 NPs, which promoted the plant growth probably due to the promoted gene expression and efficient photosynthetic activity.
Collapse
Affiliation(s)
- Huseyin Tombuloglu
- Department of Genetics Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 34221, Dammam, Saudi Arabia.
| | - Yassine Slimani
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 34221, Dammam, Saudi Arabia
| | - Guzin Tombuloglu
- Adnan Kahveci Mah., Mimar Sinan Cad., Mavisu evl., 7/28 Beylikduzu, Istanbul, Turkey
| | - Munirah Almessiere
- Department of Nanomedicine, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 34221, Dammam, Saudi Arabia; Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia
| | - Abdulhadi Baykal
- Department of Nanomedicine, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 34221, Dammam, Saudi Arabia
| |
Collapse
|
8
|
Turan O, Bielecki P, Perera V, Lorkowski M, Covarrubias G, Tong K, Yun A, Rahmy A, Ouyang T, Raghunathan S, Gopalakrishnan R, Griswold MA, Ghaghada KB, Peiris PM, Karathanasis E. Delivery of drugs into brain tumors using multicomponent silica nanoparticles. Nanoscale 2019; 11:11910-11921. [PMID: 31187845 PMCID: PMC7776621 DOI: 10.1039/c9nr02876e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Glioblastomas are highly lethal cancers defined by resistance to conventional therapies and rapid recurrence. While new brain tumor cell-specific drugs are continuously becoming available, efficient drug delivery to brain tumors remains a limiting factor. We developed a multicomponent nanoparticle, consisting of an iron oxide core and a mesoporous silica shell that can effectively deliver drugs across the blood-brain barrier into glioma cells. When exposed to alternating low-power radiofrequency (RF) fields, the nanoparticle's mechanical tumbling releases the entrapped drug molecules from the pores of the silica shell. After directing the nanoparticle to target the near-perivascular regions and altered endothelium of the brain tumor via fibronectin-targeting ligands, rapid drug release from the nanoparticles is triggered by RF facilitating wide distribution of drug delivery across the blood-brain tumor interface.
Collapse
Affiliation(s)
- O Turan
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Zhang W, Yu Z, Rao P, Lo IMC. Uptake and toxicity studies of magnetic TiO 2-Based nanophotocatalyst in Arabidopsis thaliana. Chemosphere 2019; 224:658-667. [PMID: 30849627 DOI: 10.1016/j.chemosphere.2019.02.161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 01/05/2019] [Revised: 02/18/2019] [Accepted: 02/22/2019] [Indexed: 06/09/2023]
Abstract
Information on the environmental impact of magnetic TiO2-based nanophotocatalysts is scarce. This study evaluated the potential effects of an innovative magnetic nanophotocatalyst N-TiO2/Fe3O4@SiO2 (NTFS) on plants using Arabidopsis thaliana grown in a hydroponic system. NTFS was detected in the vascular tissues and mesophyll of plants, thus confirming the uptake and upwards transport of NTFS from roots to leaves. Fourier transform infrared spectroscopy was applied to determine compositional and structural alterations in plant tissues exposed to NTFS, or its two main components (N-TiO2 and Fe3O4@SiO2), at concentrations ranging from 0 to 1000 mg/L, but no changes were detected in the lipids, pectins, proteins, cellulose, hemicellulose, and carbohydrates. The morphology and biomass of the plants were not affected by the NTFS or its components either. Biosensors for inorganic phosphate (Pi) and MgATP2- were used to monitor the in vivo Pi and MgATP2- levels in the plant cells. The results showed that NTFS and its components did not induce any adverse effects on the cytosolic Pi level or ATP synthesis, indicating the energy physiology of Arabidopsis was unaffected. In general, NTFS has inconsequential toxic effects on Arabidopsis, but can be taken up by plants, enter the food chain, and cause potential exposure and bioaccumulation in animals and human beings.
Collapse
Affiliation(s)
- Weilan Zhang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Zhigang Yu
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Pinhua Rao
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
| | - Irene M C Lo
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China; Institute for Advanced Study, The Hong Kong University of Science and Technology, Hong Kong, China.
| |
Collapse
|
10
|
Otani K, Kamiya A, Miyazaki T, Koga A, Inatomi A, Harada-Shiba M. Surface Modification with Lactadherin Augments the Attachment of Sonazoid Microbubbles to Glycoprotein IIb/IIIa. Ultrasound Med Biol 2019; 45:1455-1465. [PMID: 30857759 DOI: 10.1016/j.ultrasmedbio.2019.01.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 08/16/2018] [Revised: 12/07/2018] [Accepted: 01/25/2019] [Indexed: 06/09/2023]
Abstract
Arginine-glycine-aspartate (RGD)-carrying microbubbles (MBs) have been utilized as a specific contrast agent for glycoprotein IIb/IIIa (αIIbβ3 integrin)-expressing activated platelets in ultrasound molecular imaging. Recently, we found that surface modification with lactadherin provides the RGD motif on the surface of phosphatidylserine-containing clinically available MBs, Sonazoid. Here, we examined the potential of lactadherin-bearing Sonazoid MBs to be targeted MBs for glycoprotein IIb/IIIa using the custom-designed in vitro settings with recombinant αIIbβ3 integrin, activated platelets or erythrocyte-rich human clots. By modification of the surface with lactadherin, a large number of Sonazoid MBs were attached to the αIIbβ3 integrin-coated and platelet-immobilized plate. Additionally, the video intensity of clots after incubation with lactadherin-bearing Sonazoid MBs was significantly higher than that with unmodified Sonazoid MBs, implying the number of attached Sonazoid MBs was increased by the modification with lactadherin. Our results suggest that the lactadherin-bearing Sonazoid MBs have the potential to be thrombus-targeted MBs.
Collapse
Affiliation(s)
- Kentaro Otani
- Department of Regenerative Medicine and Tissue Engineering, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.
| | - Atsunori Kamiya
- Department of Physiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takahiro Miyazaki
- Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Ayumi Koga
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Ayako Inatomi
- Department of Regenerative Medicine and Tissue Engineering, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Mariko Harada-Shiba
- Department of Regenerative Medicine and Tissue Engineering, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan; Department of Molecular Innovation in Lipidology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| |
Collapse
|
11
|
Staniek H. The combined effects of Cr(III) propionate complex supplementation and iron excess on copper and zinc status in rats. J Trace Elem Med Biol 2019; 53:49-54. [PMID: 30910206 DOI: 10.1016/j.jtemb.2019.01.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/15/2019] [Accepted: 01/21/2019] [Indexed: 12/29/2022]
Abstract
It is suggested that both iron overload and chromium(III) deficiency may be risk factors of diabetes. It seems that both Fe and Cr(III) metabolism as well as copper and zinc metabolism are interrelated. However, the direction of these changes may depend on mutual proportions of these elements in the diet and organism. The aim of the study was to evaluate the combined effects of Cr(III) supplementation with Fe excess on the Cu and Zn status in female rats. Thirty-six healthy rats were divided into 6 experimental groups with different Fe levels in the diet. Groups marked with C (control) contained Fe at the recommended level (45 mg kg-1). The excess groups (E) contained Fe at 180 mg kg-1. At the same time the animals were supplemented with Cr(III) of doses 1, 50 and 500 mg kg-1 of diet. The Cr, Fe, Cu and Zn dietary and tissular contents were measured with the AAS method.The excess Fe in the diet significantly decreased the Cu content in the liver and kidneys, but it increased the spleen Cu level. The Cr(III) supplementary did not affect the tissular Cu levels, regardless of Fe supply with diet. The experimental factors did not have significant interactional effect on the Cu status parameters under study.The Fe excess in the diet reduced the renal and splenic Zn content, but increased the heart Zn content. The Cr(III) supplementation decreased the Zn content in the kidneys. The Zn content in the liver and spleen tended to decrease as the Cr(III) supply in the diet increased. There was no significant interactional effect of Cr(III) supplementation and the Fe excessive supply in diet on the parameters of Zn metabolism in Wistar rats. Iron oversupply disturbed the rat's Cu and Zn status. However, Cr(III) supplementation did not affect the tissular levels of these elements, except the kidney Zn content. Simultaneous supplementation with the Cr(III) propionate complex did not deepen changes in tissular Cu and Zn levels caused by the Fe excess in the diet.
Collapse
Affiliation(s)
- Halina Staniek
- Institute of Human Nutrition and Dietetics, Poznań University of Life Sciences, ul. Wojska Polskiego 31, 60-624 Poznań, Poland.
| |
Collapse
|
12
|
Soares GA, Prospero AG, Calabresi MF, Rodrigues DS, Simoes LG, Quini CC, Matos RR, Pinto LA, Sousa-Junior AA, Bakuzis AF, Mancera PA, Miranda JRA. Multichannel AC Biosusceptometry System to Map Biodistribution and Assess the Pharmacokinetic Profile of Magnetic Nanoparticles by Imaging. IEEE Trans Nanobioscience 2019; 18:456-462. [PMID: 30998477 DOI: 10.1109/tnb.2019.2912073] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this paper, the application of a technique to evaluate in vivo biodistribution of magnetic nanoparticles (MNP) is addressed: the Multichannel AC Biosusceptometry System (MC-ACB). It allows real-time assessment of magnetic nanoparticles in both bloodstream clearance and liver accumulation, where a complex network of inter-related cells is responsible for MNP uptake. Based on the acquired MC-ACB images, we propose a mathematical model which helps to understand the distribution and accumulation pharmacokinetics of MNP. The MC-ACB showed a high time resolution to detect and monitor MNP, providing sequential images over the particle biodistribution. Utilizing the MC-ACB instrument, we assessed regions corresponding to the heart and liver, and we determined the MNP transfer rates between the bloodstream and the liver. The pharmacokinetic model resulted in having a strong correlation with the experimental data, suggesting that the MC-ACB is a valuable and accessible imaging device to assess in vivo and real-time pharmacokinetic features of MNP.
Collapse
|
13
|
Ergüt M, Uzunoğlu D, Özer A. Efficient decolourization of malachite green with biosynthesized iron oxide nanoparticles loaded carbonated hydroxyapatite as a reusable heterogeneous Fenton-like catalyst. J Environ Sci Health A Tox Hazard Subst Environ Eng 2019; 54:786-800. [PMID: 30938571 DOI: 10.1080/10934529.2019.1596698] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 07/27/2018] [Revised: 03/11/2019] [Accepted: 03/14/2019] [Indexed: 06/09/2023]
Abstract
In this study, iron oxide nanoparticles (IO-NPs) with a mean diameter of 102.85 nm were firstly synthesized via a facile green route using Ulva spp. aqueous extract as a bioreductant agent. Then, IO-NPs were loaded into carbonated hydroxyapatite (c-Hap) and the final product was named as the iron oxide nanoparticles loaded carbonated hydroxyapatite (IO-NPs-Lc-Hap). Subsequently, IO-NPs-Lc-Hap was characterized by FT-IR, SEM, XRD and EDX analysis methods. MG colour removal efficiencies of Ulva spp., Hap, IO-NPs and IO-NPs-Lc-Hap materials were also evaluated by adsorption and/or Fenton-like reaction methods. IO-NPs-Lc-Hap with the highest decolourization capacity was chosen as a heterogeneous Fenton-like catalyst for Malachite Green (MG). For Fenton-like decolourization of MG, the optimum H2O2 concentration, initial dye concentration and catalyst concentration were determined to be 30 mM, 100 mg/L and 1.0 g/L, respectively. At these optimum conditions, 100% decolourization efficiency and 33.3% COD removal were obtained. On the other hand, 94% decolourization efficiency and 42% COD removal were achieved for the real textile wastewater at the obtained optimum conditions. The experimental decolourization reaction rate for MG was determined as -rd = 0.0779 [(mg dye0.3) (g cat-0.3) (min-1)] × qt0.7. Also, the catalyst had high decolourization efficiencies at the end of six sequence usages.
Collapse
Affiliation(s)
- Memduha Ergüt
- a Department of Chemical Engineering, Faculty of Engineering , Mersin University , Mersin , Turkey
| | - Deniz Uzunoğlu
- a Department of Chemical Engineering, Faculty of Engineering , Mersin University , Mersin , Turkey
| | - Ayla Özer
- a Department of Chemical Engineering, Faculty of Engineering , Mersin University , Mersin , Turkey
| |
Collapse
|
14
|
Wu X, Yan P, Ren Z, Wang Y, Cai X, Li X, Deng R, Han G. Ferric Hydroxide-Modified Upconversion Nanoparticles for 808 nm NIR-Triggered Synergetic Tumor Therapy with Hypoxia Modulation. ACS Appl Mater Interfaces 2019; 11:385-393. [PMID: 30556390 DOI: 10.1021/acsami.8b18427] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The efficacy of dynamic therapy for solid tumors suffers daunting challenges induced by tumor hypoxia. Herein, we report a biocompatible nanosystem containing Fe(OH)3-modified upconversion nanoparticles (UCNPs) for promoting synergetic chemo- and photodynamic therapy with the modulation of tumor hypoxia. In this system, UCNPs convert 808 nm near-infrared excitation to visible photon energy, which stimulates chlorin-e6 photosensitizers to generate toxic reactive oxygen species (ROS) by consumption of dissolved oxygen in cancer cells. Importantly, we employ Fe(OH)3 compounds to enable continuous oxygen generation in cancer cells and, meanwhile, induce extra ROS formation through the Fenton-like reaction. The system consequently improves the tumor treatment efficacy in vitro and in vivo. This study puts forward a novel combinatorial therapeutic platform for tumor microenvironment modulation and enhanced cancer therapy.
Collapse
Affiliation(s)
- Xiao Wu
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Peijian Yan
- Key Laboratory of Endoscopic Technique Research of Zhejiang Province, Sir Run Run Shaw Hospital , Zhejiang University , Hangzhou 310016 , P. R. China
| | - Zhaohui Ren
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Yifan Wang
- Key Laboratory of Endoscopic Technique Research of Zhejiang Province, Sir Run Run Shaw Hospital , Zhejiang University , Hangzhou 310016 , P. R. China
| | - Xiujun Cai
- Key Laboratory of Endoscopic Technique Research of Zhejiang Province, Sir Run Run Shaw Hospital , Zhejiang University , Hangzhou 310016 , P. R. China
| | - Xiang Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Renren Deng
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Gaorong Han
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| |
Collapse
|
15
|
Carregal-Romero S, Plaza-García S, Piñol R, Murillo JL, Ruiz-Cabello J, Padro D, Millán A, Ramos-Cabrer P. MRI Study of the Influence of Surface Coating Aging on the In Vivo Biodistribution of Iron Oxide Nanoparticles. Biosensors (Basel) 2018; 8:bios8040127. [PMID: 30545065 PMCID: PMC6316692 DOI: 10.3390/bios8040127] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/05/2018] [Accepted: 12/07/2018] [Indexed: 12/12/2022]
Abstract
Medical imaging is an active field of research that fosters the necessity for novel multimodal imaging probes. In this line, nanoparticle-based contrast agents are of special interest, since those can host functional entities either within their interior, reducing potential toxic effects of the imaging tracers, or on their surface, providing high payloads of probes, due to their large surface-to-volume ratio. The long-term stability of the particles in solution is an aspect usually under-tackled during probe design in research laboratories, since their performance is generally tested briefly after synthesis. This may jeopardize a later translation into practical medical devices, due to stability reasons. To dig into the effects of nanoparticle aging in solution, with respect to their behavior in vivo, iron oxide stealth nanoparticles were used at two stages (3 weeks vs. 9 months in solution), analyzing their biodistribution in mice. Both sets of nanoprobes showed similar sizes, zeta potentials, and morphology, as observed by dynamic light scattering (DLS) and transmission electronic microscopy (TEM), but fresh nanoparticles accumulated in the kidneys after systemic administration, while aged ones accumulated in liver and spleen, confirming an enormous effect of particle aging on their in vivo behavior, despite barely noticeable changes perceived on a simple inspection of their structural integrity.
Collapse
Affiliation(s)
- Susana Carregal-Romero
- Molecular and Functional Biomarkers group, CIC biomaGUNE, 20014 Donostia-San Sebastián, Spain.
- CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain.
| | - Sandra Plaza-García
- Magnetic Resonance Imaging Laboratory, CIC biomaGUNE, 20014 Donostia-San Sebastián, Spain.
| | - Rafael Piñol
- CSIC-Universidad de Zaragoza, ICMA, 50009 Zaragoza, Spain.
| | - José L Murillo
- CSIC-Universidad de Zaragoza, ICMA, 50009 Zaragoza, Spain.
| | - Jesús Ruiz-Cabello
- Molecular and Functional Biomarkers group, CIC biomaGUNE, 20014 Donostia-San Sebastián, Spain.
- CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain.
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain.
- Departamento de Química en Ciencias Farmacéuticas, Universidad Complutense de Madrid, 28040 Madrid, Spain.
| | - Daniel Padro
- Magnetic Resonance Imaging Laboratory, CIC biomaGUNE, 20014 Donostia-San Sebastián, Spain.
| | - Angel Millán
- CSIC-Universidad de Zaragoza, ICMA, 50009 Zaragoza, Spain.
| | - Pedro Ramos-Cabrer
- Magnetic Resonance Imaging Laboratory, CIC biomaGUNE, 20014 Donostia-San Sebastián, Spain.
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain.
| |
Collapse
|
16
|
Li M, Deng L, Li J, Yuan W, Gao X, Ni J, Jiang H, Zeng J, Ren J, Wang P. Actively Targeted Magnetothermally Responsive Nanocarriers/Doxorubicin for Thermochemotherapy of Hepatoma. ACS Appl Mater Interfaces 2018; 10:41107-41117. [PMID: 30403475 DOI: 10.1021/acsami.8b14972] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanodrug-delivery systems modified with targeting molecules allow antitumor drugs to localize to tumor sites efficiently. CD147 protein is expressed highly on hepatoma cells. Firstly, we synthesized magnetothermally responsive nanocarriers/doxorubicin (MTRN/DOX) which was composed of manganese zinc (Mn-Zn) ferrite magnetic nanoparticles, amphiphilic and thermosensitivity copolymer drug carriers together with DOX. Then CD147-MTRN/DOX was formed with MTRN/DOX and monoclonal antibody that specifically binds to CD147 protein. It could target hepatoma cells actively and improve the DOX concentration in the tumor sites. Subsequently, an external alternating magnetic field elevated the temperature of the thermomagnetic particles, resulting in structural changes in the thermosensitive copolymer drug carriers, thereby releasing DOX. Hence, CD147-MTRN/DOX could enhance the responsiveness of hepatoma cells to the pre-existing chemotherapy drugs owing to active targeting combined synergistically with thermotherapy and chemotherapy, which has more significant anticancer effects than MTRN/DOX.
Collapse
Affiliation(s)
- Minghua Li
- Department of Radiology, Tongji Hospital, School of Medicine , Tongji University , Shanghai 200065 , P. R. China
| | - Li Deng
- Institute of Nano and Biopolymeric Materials, School of Materials Science and Engineering , Tongji University , Shanghai 201804 , P. R. China
| | - Jianbo Li
- Institute of Nano and Biopolymeric Materials, School of Materials Science and Engineering , Tongji University , Shanghai 201804 , P. R. China
| | - Weizhong Yuan
- Institute of Nano and Biopolymeric Materials, School of Materials Science and Engineering , Tongji University , Shanghai 201804 , P. R. China
| | - Xiaolong Gao
- Department of Radiology, Tongji Hospital, School of Medicine , Tongji University , Shanghai 200065 , P. R. China
| | - Jiong Ni
- Department of Radiology, Tongji Hospital, School of Medicine , Tongji University , Shanghai 200065 , P. R. China
| | - Hong Jiang
- Department of Radiology, Tongji Hospital, School of Medicine , Tongji University , Shanghai 200065 , P. R. China
| | - Jiaqi Zeng
- Department of Radiology, Tongji Hospital, School of Medicine , Tongji University , Shanghai 200065 , P. R. China
| | - Jie Ren
- Institute of Nano and Biopolymeric Materials, School of Materials Science and Engineering , Tongji University , Shanghai 201804 , P. R. China
| | - Peijun Wang
- Department of Radiology, Tongji Hospital, School of Medicine , Tongji University , Shanghai 200065 , P. R. China
| |
Collapse
|
17
|
Asperti M, Gryzik M, Brilli E, Castagna A, Corbella M, Gottardo R, Girelli D, Tarantino G, Arosio P, Poli M. Sucrosomial ® Iron Supplementation in Mice: Effects on Blood Parameters, Hepcidin, and Inflammation. Nutrients 2018; 10:nu10101349. [PMID: 30241424 PMCID: PMC6213119 DOI: 10.3390/nu10101349] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/15/2018] [Accepted: 09/18/2018] [Indexed: 02/07/2023] Open
Abstract
Sucrosomial® Iron is a recently developed formulation to treat iron deficiency based on ferric pyrophosphate covered by a matrix of phospholipids plus sucrose esters of fatty acids. Previous data indicated that Sucrosomial® Iron is efficiently absorbed by iron-deficient subjects, even at low dosage, and without side effects. Its structural properties may suggest that it is absorbed by an intestinal pathway which is different to the one used by ionic iron. Although, studies in vitro showed that Sucrosomial® Iron is readily absorbed, no animal models have been established to study this important aspect. To this aim, we induced iron deficient anemia in mice by feeding them with a low-iron diet, and then we treated them with either Sucrosomial® Iron or sulfate iron by gavage for up to two weeks. Both iron formulations corrected anemia and restored iron stores in a two-week period, but with different kinetics. Ferrous Sulfate was more efficient during the first week and Sucrosomial® Iron in the second week. Of note, when given at the same concentrations, Ferrous Sulfate induced the expression of hepcidin and four different inflammatory markers (Socs3, Saa1, IL6 and CRP), while Sucrosomial® Iron did not. We conclude that anemic mice are interesting models to study the absorption of oral iron, and that Sucrosomial® Iron is to be preferred over Ferrous Sulfate because of similar absorption but without inducing an inflammatory response.
Collapse
Affiliation(s)
- Michela Asperti
- Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy.
| | - Magdalena Gryzik
- Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy.
| | | | | | - Michela Corbella
- Department of Medicine, University of Verona, 37134 Verona, Italy.
| | - Rossella Gottardo
- Department of Diagnostics and Public Health, University of Verona, 37134 Verona, Italy.
| | - Domenico Girelli
- Department of Medicine, University of Verona, 37134 Verona, Italy.
| | | | - Paolo Arosio
- Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy.
| | - Maura Poli
- Department of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy.
| |
Collapse
|
18
|
Pang J, Zhao H, Bansal R, Bohuon E, Lambers H, Ryan MH, Siddique KHM. Leaf transpiration plays a role in phosphorus acquisition among a large set of chickpea genotypes. Plant Cell Environ 2018; 41:2069-2079. [PMID: 29315636 DOI: 10.1111/pce.13139] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/23/2017] [Accepted: 12/26/2017] [Indexed: 05/20/2023]
Abstract
Low availability of inorganic phosphorus (P) is considered a major constraint for crop productivity worldwide. A unique set of 266 chickpea (Cicer arietinum L.) genotypes, originating from 29 countries and with diverse genetic background, were used to study P-use efficiency. Plants were grown in pots containing sterilized river sand supplied with P at a rate of 10 μg P g-1 soil as FePO4 , a poorly soluble form of P. The results showed large genotypic variation in plant growth, shoot P content, physiological P-use efficiency, and P-utilization efficiency in response to low P supply. Further investigation of a subset of 100 chickpea genotypes with contrasting growth performance showed significant differences in photosynthetic rate and photosynthetic P-use efficiency. A positive correlation was found between leaf P concentration and transpiration rate of the young fully expanded leaves. For the first time, our study has suggested a role of leaf transpiration in P acquisition, consistent with transpiration-driven mass flow in chickpea grown in low-P sandy soils. The identification of 6 genotypes with high plant growth, P-acquisition, and P-utilization efficiency suggests that the chickpea reference set can be used in breeding programmes to improve both P-acquisition and P-utilization efficiency under low-P conditions.
Collapse
Affiliation(s)
- Jiayin Pang
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia
- School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia
| | - Hongxia Zhao
- Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Ruchi Bansal
- Division of Germplasm Evaluation, ICAR-National Bureau of Plant Genetic Resources, New Delhi, 110012, India
| | - Emilien Bohuon
- Institut Polytechnique UniLaSalle, Beauvais, Cedex 60000, France
- School of Biological Sciences, The University of Western Australia, Perth, WA, 6001, Australia
| | - Hans Lambers
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia
- School of Biological Sciences, The University of Western Australia, Perth, WA, 6001, Australia
| | - Megan H Ryan
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia
- School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia
- School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia
| |
Collapse
|
19
|
Tay ZW, Chandrasekharan P, Zhou XY, Yu E, Zheng B, Conolly S. In vivo tracking and quantification of inhaled aerosol using magnetic particle imaging towards inhaled therapeutic monitoring. Theranostics 2018; 8:3676-3687. [PMID: 30026874 PMCID: PMC6037024 DOI: 10.7150/thno.26608] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 05/15/2018] [Indexed: 12/14/2022] Open
Abstract
Pulmonary delivery of therapeutics is attractive due to rapid absorption and non-invasiveness but it is challenging to monitor and quantify the delivered aerosol or powder. Currently, single-photon emission computed tomography (SPECT) is used but requires inhalation of radioactive labels that typically have to be synthesized and attached by hot chemistry techniques just prior to every scan. Methods: In this work, we demonstrate that superparamagnetic iron oxide nanoparticles (SPIONs) can be used to label and track aerosols in vivo with high sensitivity using an emerging medical imaging technique known as magnetic particle imaging (MPI). We perform proof-of-concept experiments with SPIONs for various lung applications such as evaluation of efficiency and uniformity of aerosol delivery, tracking of the initial aerosolized therapeutic deposition in vivo, and finally, sensitive visualization of the entire mucociliary clearance pathway from the lung up to the epiglottis and down the gastrointestinal tract to be excreted. Results: Imaging of SPIONs in the lung has previously been limited by difficulty of lung imaging with magnetic resonance imaging (MRI). In our results, MPI enabled SPION lung imaging with high sensitivity, and a key implication is the potential combination with magnetic actuation or hyperthermia for MPI-guided therapy in the lung with SPIONs. Conclusion: This work shows how magnetic particle imaging can be enabling for new imaging and therapeutic applications of SPIONs in the lung.
Collapse
Affiliation(s)
- Zhi Wei Tay
- Department of Bioengineering, University of California, Berkeley, CA 94720, United States
| | | | - Xinyi Yedda Zhou
- Department of Bioengineering, University of California, Berkeley, CA 94720, United States
| | - Elaine Yu
- Magnetic Insight, Inc., Alameda, CA 94501, United States
| | - Bo Zheng
- Department of Bioengineering, University of California, Berkeley, CA 94720, United States
| | - Steven Conolly
- Department of Bioengineering, University of California, Berkeley, CA 94720, United States
- Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, United States
| |
Collapse
|
20
|
Chan JMS, Monaco C, Wylezinska-Arridge M, Tremoleda JL, Cole JE, Goddard M, Cheung MSH, Bhakoo KK, Gibbs RGJ. Imaging vulnerable plaques by targeting inflammation in atherosclerosis using fluorescent-labeled dual-ligand microparticles of iron oxide and magnetic resonance imaging. J Vasc Surg 2018; 67:1571-1583.e3. [PMID: 28648478 DOI: 10.1016/j.jvs.2017.04.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 04/01/2017] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Identification of patients with high-risk asymptomatic carotid plaques remains an elusive but essential step in stroke prevention. Inflammation is a key process in plaque destabilization and a prelude to clinical sequelae. There are currently no clinical imaging tools to assess the inflammatory activity within plaques. This study characterized inflammation in atherosclerosis using dual-targeted microparticles of iron oxide (DT-MPIO) as a magnetic resonance imaging (MRI) probe. METHODS DT-MPIO were used to detect and characterize inflammatory markers, vascular cell adhesion molecule 1 (VCAM-1). and P-selectin on (1) tumor necrosis factor-α-treated cells by immunocytochemistry and (2) aortic root plaques of apolipoprotein-E deficient mice by in vivo MRI. Furthermore, apolipoprotein E-deficient mice with focal carotid plaques of different phenotypes were developed by means of periarterial cuff placement to allow in vivo molecular MRI using these probes. The association between biomarkers and the magnetic resonance signal in different contrast groups was assessed longitudinally in these models. RESULTS Immunocytochemistry confirmed specificity and efficacy of DT-MPIO to VCAM-1 and P-selectin. Using this in vivo molecular MRI strategy, we demonstrated (1) the DT-MPIO-induced magnetic resonance signal tracked with VCAM-1 (r = 0.69; P = .014), P-selectin (r = 0.65; P = .022), and macrophage content (r = 0.59; P = .045) within aortic root plaques and (2) high-risk inflamed plaques were distinguished from noninflamed plaques in the murine carotid artery within a practical clinical imaging time frame. CONCLUSIONS These molecular MRI probes constitute a novel imaging tool for in vivo characterization of plaque vulnerability and inflammatory activity in atherosclerosis. Further development and translation into the clinical arena will facilitate more accurate risk stratification in carotid atherosclerotic disease in the future.
Collapse
Affiliation(s)
- Joyce M S Chan
- Department of Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, United Kingdom; Regional Vascular Unit, St Mary's Hospital, Imperial College Healthcare National Health Service Trust, Imperial College London, London, United Kingdom; The Laboratory of Molecular Imaging, Singapore Bioimaging Consortium, Agency for Science, Technology and Research (ASTAR), Singapore.
| | - Claudia Monaco
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Marzena Wylezinska-Arridge
- Neuroradiological Academic Unit, University of College London Institute of Neurology, University College London, London, United Kingdom
| | - Jordi L Tremoleda
- Medical Research Council-Clinical Sciences Centre, Imperial College London, and Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
| | - Jennifer E Cole
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Michael Goddard
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Maggie S H Cheung
- Department of Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, United Kingdom
| | - Kishore K Bhakoo
- The Laboratory of Molecular Imaging, Singapore Bioimaging Consortium, Agency for Science, Technology and Research (ASTAR), Singapore
| | - Richard G J Gibbs
- Regional Vascular Unit, St Mary's Hospital, Imperial College Healthcare National Health Service Trust, Imperial College London, London, United Kingdom
| |
Collapse
|
21
|
Gorman AW, Deh KM, Schwiedrzik CM, White JR, Groman EV, Fisher CA, Gillen KM, Spincemaille P, Rasmussen S, Prince MR, Voss HU, Freiwald WA, Wang Y. Brain Iron Distribution after Multiple Doses of Ultra-small Superparamagnetic Iron Oxide Particles in Rats. Comp Med 2018; 68:139-147. [PMID: 29663939 PMCID: PMC5897970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 07/16/2017] [Accepted: 09/26/2017] [Indexed: 06/08/2023]
Abstract
The purpose of this study is to determine the effects of high cumulative doses of ultra-small paramagnetic iron oxide (USPIO) used in neuroimaging studies. We intravenously administered 8 mg/kg of 2 USPIO compounds daily for 4 wk to male Sprague-Dawley rats (Crl:SD). Multiecho gradient-echo MRI, serum iron levels, and histology were performed at the end of dosing and after a 7-d washout period. R2* maps and quantitative susceptibility maps (QSM) were generated from multiecho gradient-echo data. R2* maps and QSM showed iron accumulation in brain ventricles on MR images acquired at the 4- and 5-wk time points. Estimates from QSM data showed ventricular iron concentration was equal to or higher than serum iron concentration. Histologic analysis revealed choroid plexus hemosiderosis and midbrain vacuolation, without iron deposition in brain parenchyma. Serum iron levels increased with administration of both compounds, and a 7-d washout period effectively reduced serum iron levels of one but not both of the compounds. High cumulative doses from multiple, frequent administrations of USPIO can lead to iron deposition in brain ventricles, resulting in persistent signal loss on T2*-weighted images. Techniques such as QSM are helpful in quantifying iron biodistribution in this situation.
Collapse
Affiliation(s)
- Andrew W Gorman
- Institute of Comparative Medicine, Columbia University, New York, New York, USA. Center of Comparative Medicine and Pathology, Memorial Sloan-Kettering Center, Tri Institutional Training Program in Laboratory Animal Medicine and Science, New York, New York, USA.,
| | - Kofi M Deh
- Joan and Sanford I Weill Medical College, Cornell University, New York, New York, USA
| | - Caspar M Schwiedrzik
- Laboratory of Neural Systems, Rockefeller University, New York, New York, USA. Neural Circuits and Cognition Lab, European Neuroscience Institute, Gottingen, Germany
| | - Julie R White
- Center of Comparative Medicine and Pathology, Memorial Sloan-Kettering Cancer Center, Tri Institutional Training Program in Laboratory Animal Medicine and Science, New York, New York, USA
| | - Ernest Victor Groman
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
| | - Clark A Fisher
- Laboratory of Neural Systems, Rockefeller University, New York, New York, USA
| | - Kelly M Gillen
- Joan and Sanford I Weill Medical College, Cornell University, New York, New York, USA
| | - Pascal Spincemaille
- Joan and Sanford I Weill Medical College, Cornell University, New York, New York, USA
| | - Skye Rasmussen
- Comparative Bioscience Center, Rockefeller University, New York, New York, USA
| | - Martin R Prince
- Joan and Sanford I Weill Medical College, Cornell University, New York, New York, USA
| | - Henning U Voss
- Joan and Sanford I Weill Medical College, Cornell University, New York, New York, USA
| | - Winrich A Freiwald
- Laboratory of Neural Systems, Rockefeller University, New York, New York, USA
| | - Yi Wang
- Joan and Sanford I Weill Medical College, Cornell University, New York, New York, USA
| |
Collapse
|
22
|
Cabrera D, Coene A, Leliaert J, Artés-Ibáñez EJ, Dupré L, Telling ND, Teran FJ. Dynamical Magnetic Response of Iron Oxide Nanoparticles Inside Live Cells. ACS Nano 2018; 12:2741-2752. [PMID: 29508990 DOI: 10.1021/acsnano.7b08995] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Magnetic nanoparticles exposed to alternating magnetic fields have shown a great potential acting as magnetic hyperthermia mediators for cancer treatment. However, a dramatic and unexplained reduction of the nanoparticle magnetic heating efficiency has been evidenced when nanoparticles are located inside cells or tissues. Recent studies suggest the enhancement of nanoparticle clustering and/or immobilization after interaction with cells as possible causes, although a quantitative description of the influence of biological matrices on the magnetic response of magnetic nanoparticles under AC magnetic fields is still lacking. Here, we studied the effect of cell internalization on the dynamical magnetic response of iron oxide nanoparticles (IONPs). AC magnetometry and magnetic susceptibility measurements of two magnetic core sizes (11 and 21 nm) underscored differences in the dynamical magnetic response following cell uptake with effects more pronounced for larger sizes. Two methodologies have been employed for experimentally determining the magnetic heat losses of magnetic nanoparticles inside live cells without risking their viability as well as the suitability of magnetic nanostructures for in vitro hyperthermia studies. Our experimental results-supported by theoretical calculations-reveal that the enhancement of intracellular IONP clustering mainly drives the cell internalization effects rather than intracellular IONP immobilization. Understanding the effects related to the nanoparticle transit into live cells on their magnetic response will allow the design of nanostructures containing magnetic nanoparticles whose dynamical magnetic response will remain invariable in any biological environments, allowing sustained and predictable in vivo heating efficiency.
Collapse
Affiliation(s)
- David Cabrera
- iMdea Nanociencia , Campus Universitario de Cantoblanco, C\Faraday, 9 , 28049 Madrid , Spain
- Institute for Science and Technology in Medicine , Keele University , Guy Hilton Research Centre, Thornburrow Drive , Hartshill, Stoke-on-Trent ST4 7QB , United Kingdom
| | - Annelies Coene
- Department of Electrical Energy, Metals, Mechanical Constructions and Systems , Ghent University , Technologiepark 913 , 9052 Zwijnaarde , Belgium
| | - Jonathan Leliaert
- Department of Solid State Sciences , Ghent University , Krijgslaan 281/S1 , 9000 Ghent , Belgium
| | - Emilio J Artés-Ibáñez
- iMdea Nanociencia , Campus Universitario de Cantoblanco, C\Faraday, 9 , 28049 Madrid , Spain
| | - Luc Dupré
- Department of Electrical Energy, Metals, Mechanical Constructions and Systems , Ghent University , Technologiepark 913 , 9052 Zwijnaarde , Belgium
| | - Neil D Telling
- Institute for Science and Technology in Medicine , Keele University , Guy Hilton Research Centre, Thornburrow Drive , Hartshill, Stoke-on-Trent ST4 7QB , United Kingdom
| | - Francisco J Teran
- iMdea Nanociencia , Campus Universitario de Cantoblanco, C\Faraday, 9 , 28049 Madrid , Spain
- Nanobiotecnología (iMdea-Nanociencia) , Unidad Asociada al Centro Nacional de Biotecnología (CSIC) , 28049 Madrid , Spain
| |
Collapse
|
23
|
Peng YK, Lui CNP, Chen YW, Chou SW, Chou PT, Yung KKL, Tsang SCE. Engineered core-shell magnetic nanoparticle for MR dual-modal tracking and safe magnetic manipulation of ependymal cells in live rodents. Nanotechnology 2018; 29:015102. [PMID: 29205171 DOI: 10.1088/1361-6528/aa96eb] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Tagging recognition group(s) on superparamagnetic iron oxide is known to aid localisation (imaging), stimulation and separation of biological entities using magnetic resonance imaging (MRI) and magnetic agitation/separation (MAS) techniques. Despite the wide applicability of iron oxide nanoparticles in T 2-weighted MRI and MAS, the quality of the images and safe manipulation of the exceptionally delicate neural cells in a live brain are currently the key challenges. Here, we demonstrate the engineered manganese oxide clusters-iron oxide core-shell nanoparticle as an MR dual-modal contrast agent for neural stem cells (NSCs) imaging and magnetic manipulation in live rodents. As a result, using this engineered nanoparticle and associated technologies, identification, stimulation and transportation of labelled potentially multipotent NSCs from a specific location of a live brain to another by magnetic means for self-healing therapy can therefore be made possible.
Collapse
Affiliation(s)
- Yung-Kang Peng
- Department of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | | | | | | | | | | | | |
Collapse
|
24
|
Liberti ME, Garofalo C, Sagliocca A, Borrelli S, Conte G, De Nicola L, Minutolo R. [Iron deficiency in ND-CKD: from diagnosis to treatment]. G Ital Nefrol 2017; 34:50-61. [PMID: 28963827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In non-dialysis-chronic kidney disease (CKD), iron deficiency is a frequent nutritional disorder due to either the greater tendency to occult gastrointestinal bleeding or to the chronic inflammatory state resulting in a reduced intestinal iron reabsorption through an increased synthesis of hepcidin. These phenomenon are responsible for a negative iron balance that compromises erythropoiesis and contributes to the pathogenesis of anemia in CKD. Several laboratory tests are now available to allow an adequate diagnosis of iron deficiency. Among the new parameters, the percentage of hypochromic red cells (% HYPO) and the reticulocyte hemoglobin content (CHr) are now considered as the most specific markers for diagnosing iron-deficiency erythropoiesis. Unfortunately, their implementation in clinical practice is limited by the scarce availability. In non-dialyzed CKD , subjects intolerant or non-responsive to oral iron therapy, can be effectively treated with novel intravenous iron preparations, such as iron carboxymaltose, that allow a complete and rapid correction of iron deficient anemia. Furthermore, this iron compound is associated with lower rate of adverse effects since the carbohydrate shell (carboxymaltose) is more stable than gluconate and saccarate thus reducing the release of free iron in the bloodstream. Of note, the possibility of administering this drug at high doses and reduced frequency decreases the risk of infusion reactions. Finally, a substantial economic saving mainly dependent on a reduction in indirect costs represents a further advantage in the use of iron carboxymaltose in this population.
Collapse
Affiliation(s)
- Maria Elena Liberti
- Cattedra di Nefrologia, Università della Campania Luigi Vanvitelli, Napoli, Italia
| | - Carlo Garofalo
- Cattedra di Nefrologia, Università della Campania Luigi Vanvitelli, Napoli, Italia
| | - Adelia Sagliocca
- Cattedra di Nefrologia, Università della Campania Luigi Vanvitelli, Napoli, Italia
| | - Silvio Borrelli
- Cattedra di Nefrologia, Università della Campania Luigi Vanvitelli, Napoli, Italia
| | - Giuseppe Conte
- Cattedra di Nefrologia, Università della Campania Luigi Vanvitelli, Napoli, Italia
| | - Luca De Nicola
- Cattedra di Nefrologia, Università della Campania Luigi Vanvitelli, Napoli, Italia
| | - Roberto Minutolo
- Cattedra di Nefrologia, Università della Campania Luigi Vanvitelli, Napoli, Italia
| |
Collapse
|
25
|
Chiarelli PA, Revia RA, Stephen ZR, Wang K, Jeon M, Nelson V, Kievit FM, Sham J, Ellenbogen RG, Kiem HP, Zhang M. Nanoparticle Biokinetics in Mice and Nonhuman Primates. ACS Nano 2017; 11:9514-9524. [PMID: 28885825 PMCID: PMC6002853 DOI: 10.1021/acsnano.7b05377] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Despite the preponderance of iron oxide nanoparticles (NPs) designed for theranostic applications, widespread clinical translation of these NPs lags behind. A better understanding of how NP pharmacokinetics vary between small and large animal models is needed to rapidly customize NPs for optimal performance in humans. Here we use noninvasive magnetic resonance imaging (MRI) to track iron oxide NPs through a large number of organ systems in vivo to investigate NP biokinetics in both mice and nonhuman primates. We demonstrate that pharmacokinetics are similar between mice and macaques in the blood, liver, spleen, and muscle, but differ in the kidneys, brain, and bone marrow. Our study also demonstrates that full-body MRI is practical, rapid, and cost-effective for tracking NPs noninvasively with high spatiotemporal resolution. Our techniques using a nonhuman primate model may provide a platform for testing a range of NP formulations.
Collapse
Affiliation(s)
- Peter A. Chiarelli
- Department of Neurological Surgery, University of Washington, Seattle, Washington 98195
| | - Richard A. Revia
- Department of Neurological Surgery, University of Washington, Seattle, Washington 98195
| | - Zachary R. Stephen
- Department of Neurological Surgery, University of Washington, Seattle, Washington 98195
| | - Kui Wang
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195
| | - Mike Jeon
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195
| | - Veronica Nelson
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Forrest M. Kievit
- Department of Neurological Surgery, University of Washington, Seattle, Washington 98195
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195
| | - Jonathan Sham
- Department of Surgery, University of Washington, Seattle, Washington 98195
| | - Richard G. Ellenbogen
- Department of Neurological Surgery, University of Washington, Seattle, Washington 98195
- Department of Radiology, University of Washington, Seattle, Washington 98195
| | - Hans-Peter Kiem
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
- Department of Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Miqin Zhang
- Department of Neurological Surgery, University of Washington, Seattle, Washington 98195
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195
- Department of Radiology, University of Washington, Seattle, Washington 98195
| |
Collapse
|
26
|
Chaves NL, Estrela-Lopis I, Böttner J, Lopes CAP, Guido BC, de Sousa AR, Báo SN. Exploring cellular uptake of iron oxide nanoparticles associated with rhodium citrate in breast cancer cells. Int J Nanomedicine 2017; 12:5511-5523. [PMID: 28814867 PMCID: PMC5546771 DOI: 10.2147/ijn.s141582] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Nanocarriers have the potential to improve the therapeutic index of currently available drugs by improving their efficacy and achieving therapeutic steady-state levels over an extended period. The association of maghemite-rhodium citrate (MRC) nanoparticles (NPs) has the potential to increase specificity of the cytotoxic action. However, the interaction of these NPs with cells, their uptake mechanism, and subcellular localization need to be elucidated. This work evaluates the uptake mechanism of MRC NPs in metastatic and nonmetastatic breast cancer-cell models, comparing them to a nontumor cell line. MRC NPs uptake in breast cancer cells was more effective than in normal cells, with regard to both the amount of internalized material and the achievement of more strategic intracellular distribution. Moreover, this process occurred through a clathrin-dependent endocytosis pathway with different basal expression levels of this protein in the cell lines tested.
Collapse
Affiliation(s)
- Natalia L Chaves
- Institute of Biological Sciences, Department of Cell Biology, University of Brasília (UnB), Brasília, Brazil
| | - Irina Estrela-Lopis
- Institute of Biophysics and Medical Physics, University of Leipzig, Leipzig, Germany
| | - Julia Böttner
- Institute of Biophysics and Medical Physics, University of Leipzig, Leipzig, Germany
| | - Cláudio AP Lopes
- Institute of Biological Sciences, Department of Cell Biology, University of Brasília (UnB), Brasília, Brazil
| | - Bruna C Guido
- Institute of Biological Sciences, Department of Cell Biology, University of Brasília (UnB), Brasília, Brazil
| | | | - Sônia N Báo
- Institute of Biological Sciences, Department of Cell Biology, University of Brasília (UnB), Brasília, Brazil
| |
Collapse
|
27
|
Lewinski NA, Berthet A, Maurizi L, Eisenbeis A, Hopf NB. Effectiveness of hand washing on the removal of iron oxide nanoparticles from human skin ex vivo. J Occup Environ Hyg 2017; 14:D115-D119. [PMID: 28426382 DOI: 10.1080/15459624.2017.1296238] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, the effectiveness of washing with soap and water in removing nanoparticles from exposed skin was investigated. Dry, nanoscale hematite (α-Fe2O3) or maghemite (γ-Fe2O3) powder, with primary particle diameters between 20-30 nm, were applied to two samples each of fresh and frozen ex vivo human skin in two independent experiments. The permeation of nanoparticles through skin, and the removal of nanoparticles after washing with soap and water were investigated. Bare iron oxide nanoparticles remained primarily on the surface of the skin, without penetrating beyond the stratum corneum. Skin exposed to iron oxide nanoparticles for 1 and 20 hr resulted in removal of 85% and 90%, respectively, of the original dose after washing. In the event of dermal exposure to chemicals, removal is essential to avoid potential local irritation or permeation across skin. Although manufactured at an industrial scale and used extensively in laboratory experiments, limited data are available on the removal of engineered nanoparticles after skin contact. Our finding raises questions about the potential consequences of nanoparticles remaining on the skin and whether alternative washing methods should be proposed. Further studies on skin decontamination beyond use of soap and water are needed to improve the understanding of the potential health consequences of dermal exposure to nanoparticles.
Collapse
Affiliation(s)
- Nastassja A Lewinski
- a Institute for Work and Health , University of Lausanne , Lausanne , Switzerland
- b Department of Chemical and Life Science Engineering , Virginia Commonwealth University , Richmond , Virginia
| | - Aurélie Berthet
- a Institute for Work and Health , University of Lausanne , Lausanne , Switzerland
| | - Lionel Maurizi
- c Powder Technology Laboratory , École Polytechnique Fédérale de Lausanne , Lausanne , Switzerland
| | - Antoine Eisenbeis
- a Institute for Work and Health , University of Lausanne , Lausanne , Switzerland
| | - Nancy B Hopf
- a Institute for Work and Health , University of Lausanne , Lausanne , Switzerland
| |
Collapse
|
28
|
Li P, Hoppmann S, Du P, Li H, Evans PM, Moestue SA, Yu W, Dong F, Liu H, Liu L. Pharmacokinetics of Perfluorobutane after Intra-Venous Bolus Injection of Sonazoid in Healthy Chinese Volunteers. Ultrasound Med Biol 2017; 43:1031-1039. [PMID: 28283327 DOI: 10.1016/j.ultrasmedbio.2017.01.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 09/08/2016] [Revised: 12/22/2016] [Accepted: 01/06/2017] [Indexed: 06/06/2023]
Abstract
Sonazoid is an ultrasound contrast agent based on microbubbles (MB) containing perfluorobutane (PFB) gas. Sonazoid is approved in Japan, Korea and Norway for contrast-enhanced ultrasonography of focal liver lesions and focal breast lesions (Japan only). The objective of this study was to determine the pharmacokinetics (PKs) and safety of Sonazoid in Chinese healthy volunteers (HVs) and to evaluate the potential for ethnic differences in PKs between Chinese and Caucasian HVs. Sonazoid was administered as an intra-venous bolus injection at the clinical dose of 0.12 μL or 0.60 μL MB/kg body weight to two groups of eight Chinese HVs. Expired air and blood samples were collected and analyzed using a validated gas chromatographic tandem mass spectrometry method, and the main PK parameters were calculated. The highest PFB concentrations in blood were observed shortly after intra-venous administration of Sonazoid, and elimination of PFB was rapid. In the 0.12 μL MB/kg body weight cohort, PFB concentrations above the limit of quantification were observed for only 10 to 15 min post-injection. In the 0.60 μL MB/kg body weight cohort, PFB concentrations above the limit of quantification were observed for 60 min post-injection, and the shape of the elimination curve suggested a biphasic elimination profile. The maximum observed concentration (Cmax) values of PFB in blood were 2.3 ± 1.1 and 19.1 ± 9.2 ng/g for the 0.12 and 0.60 μL MB/kg body weight dose groups (mean ± standard deviation). Area under the curve values were 10.1 ± 2.7 and 90.1 ± 38.3 ng × min/g for the 0.12 and 0.60 μL MB/kg body weight dose groups. Cmax values of PFB in exhaled air were 0.35 ± 0.2 and 2.4 ± 0.7 ng/mL for the 0.12 and 0.60 μL MB/kg body weight dose groups. Assessment of laboratory parameters, vital signs, oxygen saturation and electrocardiograms revealed no changes indicative of a concern. The PK profile and safety data generated in the Chinese HVs were comparable to previous data for Caucasian HVs.
Collapse
Affiliation(s)
- Pengfei Li
- Phase I Clinical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Chaoyang District, Beijing, China
| | - Susan Hoppmann
- GE Healthcare, The Grove Centre, Amersham, Buckinghamshire, UK.
| | - Ping Du
- Phase I Clinical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Chaoyang District, Beijing, China
| | - Huiling Li
- Phase I Clinical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Chaoyang District, Beijing, China
| | - Paul M Evans
- GE Healthcare, The Grove Centre, Amersham, Buckinghamshire, UK
| | - Siver A Moestue
- Department of Laboratory Medicine, Women's and Children's Health, Faculty of Medicine, NTNU (Norwegian University of Science and Technology), Trondheim, Norway
| | - Weiyue Yu
- Phase I Clinical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Chaoyang District, Beijing, China
| | - Fang Dong
- Phase I Clinical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Chaoyang District, Beijing, China
| | - Hongchuan Liu
- Phase I Clinical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Chaoyang District, Beijing, China
| | - Lihong Liu
- Phase I Clinical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Chaoyang District, Beijing, China
| |
Collapse
|
29
|
Perfecto A, Elgy C, Valsami-Jones E, Sharp P, Hilty F, Fairweather-Tait S. Mechanisms of Iron Uptake from Ferric Phosphate Nanoparticles in Human Intestinal Caco-2 Cells. Nutrients 2017; 9:nu9040359. [PMID: 28375175 PMCID: PMC5409698 DOI: 10.3390/nu9040359] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 03/27/2017] [Accepted: 03/30/2017] [Indexed: 12/28/2022] Open
Abstract
Food fortification programs to reduce iron deficiency anemia require bioavailable forms of iron that do not cause adverse organoleptic effects. Rodent studies show that nano-sized ferric phosphate (NP-FePO4) is as bioavailable as ferrous sulfate, but there is controversy over the mechanism of absorption. We undertook in vitro studies to examine this using a Caco-2 cell model and simulated gastrointestinal (GI) digestion. Supernatant iron concentrations increased inversely with pH, and iron uptake into Caco-2 cells was 2–3 fold higher when NP-FePO4 was digested at pH 1 compared to pH 2. The size and distribution of NP-FePO4 particles during GI digestion was examined using transmission electron microscopy. The d50 of the particle distribution was 413 nm. Using disc centrifugal sedimentation, a high degree of agglomeration in NP-FePO4 following simulated GI digestion was observed, with only 20% of the particles ≤1000 nm. In Caco-2 cells, divalent metal transporter-1 (DMT1) and endocytosis inhibitors demonstrated that NP-FePO4 was mainly absorbed via DMT1. Small particles may be absorbed by clathrin-mediated endocytosis and micropinocytosis. These findings should be considered when assessing the potential of iron nanoparticles for food fortification.
Collapse
Affiliation(s)
- Antonio Perfecto
- 1Norwich Medical School, University of East Anglia, Norwich, Norfolk NR4 7UQ, UK; of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (C.E.); (E.V.-J.)3Diabetes and Nutritional Sciences Division, King's College London, London SE1 9NH, UK; of Food, Nutrition, and Health, ETH, Schmelzbergstrasse 9, 8092 Zürich, Switzerland; .
| | - Christine Elgy
- 1Norwich Medical School, University of East Anglia, Norwich, Norfolk NR4 7UQ, UK; of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (C.E.); (E.V.-J.)3Diabetes and Nutritional Sciences Division, King's College London, London SE1 9NH, UK; of Food, Nutrition, and Health, ETH, Schmelzbergstrasse 9, 8092 Zürich, Switzerland; .
| | - Eugenia Valsami-Jones
- 1Norwich Medical School, University of East Anglia, Norwich, Norfolk NR4 7UQ, UK; of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (C.E.); (E.V.-J.)3Diabetes and Nutritional Sciences Division, King's College London, London SE1 9NH, UK; of Food, Nutrition, and Health, ETH, Schmelzbergstrasse 9, 8092 Zürich, Switzerland; .
| | - Paul Sharp
- 1Norwich Medical School, University of East Anglia, Norwich, Norfolk NR4 7UQ, UK; of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (C.E.); (E.V.-J.)3Diabetes and Nutritional Sciences Division, King's College London, London SE1 9NH, UK; of Food, Nutrition, and Health, ETH, Schmelzbergstrasse 9, 8092 Zürich, Switzerland; .
| | - Florentine Hilty
- 1Norwich Medical School, University of East Anglia, Norwich, Norfolk NR4 7UQ, UK; of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (C.E.); (E.V.-J.)3Diabetes and Nutritional Sciences Division, King's College London, London SE1 9NH, UK; of Food, Nutrition, and Health, ETH, Schmelzbergstrasse 9, 8092 Zürich, Switzerland; .
| | - Susan Fairweather-Tait
- 1Norwich Medical School, University of East Anglia, Norwich, Norfolk NR4 7UQ, UK; of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (C.E.); (E.V.-J.)3Diabetes and Nutritional Sciences Division, King's College London, London SE1 9NH, UK; of Food, Nutrition, and Health, ETH, Schmelzbergstrasse 9, 8092 Zürich, Switzerland; .
| |
Collapse
|
30
|
Iacovita C, Florea A, Dudric R, Pall E, Moldovan AI, Tetean R, Stiufiuc R, Lucaciu CM. Small versus Large Iron Oxide Magnetic Nanoparticles: Hyperthermia and Cell Uptake Properties. Molecules 2016; 21:E1357. [PMID: 27754394 PMCID: PMC6274490 DOI: 10.3390/molecules21101357] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 09/30/2016] [Accepted: 10/06/2016] [Indexed: 11/16/2022] Open
Abstract
Efficient use of magnetic hyperthermia in clinical cancer treatment requires biocompatible magnetic nanoparticles (MNPs), with improved heating capabilities. Small (~34 nm) and large (~270 nm) Fe₃O₄-MNPs were synthesized by means of a polyol method in polyethylene-glycol (PEG) and ethylene-glycol (EG), respectively. They were systematically investigated by means of X-ray diffraction, transmission electron microscopy and vibration sample magnetometry. Hyperthermia measurements showed that Specific Absorption Rate (SAR) dependence on the external alternating magnetic field amplitude (up to 65 kA/m, 355 kHz) presented a sigmoidal shape, with remarkable SAR saturation values of ~1400 W/gMNP for the small monocrystalline MNPs and only 400 W/gMNP for the large polycrystalline MNPs, in water. SAR values were slightly reduced in cell culture media, but decreased one order of magnitude in highly viscous PEG1000. Toxicity assays performed on four cell lines revealed almost no toxicity for the small MNPs and a very small level of toxicity for the large MNPs, up to a concentration of 0.2 mg/mL. Cellular uptake experiments revealed that both MNPs penetrated the cells through endocytosis, in a time dependent manner and escaped the endosomes with a faster kinetics for large MNPs. Biodegradation of large MNPs inside cells involved an all-or-nothing mechanism.
Collapse
Affiliation(s)
- Cristian Iacovita
- Department of Pharmaceutical Physics-Biophysics, Faculty of Pharmacy, "Iuliu Hatieganu" University of Medicine and Pharmacy, Pasteur 6, 400349 Cluj-Napoca, Romania.
| | - Adrian Florea
- Department of Cell and Molecular Biology, Faculty of Medicine, ''Iuliu Hatieganu'' University of Medicine and Pharmacy, Pasteur 6, 400349 Cluj-Napoca, Romania.
| | - Roxana Dudric
- Faculty of Physics, "Babes Bolyai" University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania.
| | - Emoke Pall
- Department of Reproduction Obstetrics and Veterinary Gynecology, University of Agricultural Sciences and Veterinary Medicine, Manastur 3-5, 400372 Cluj-Napoca, Romania.
| | - Alin Iulian Moldovan
- Department of Bionanoscopy, MedFuture Research Center for Advance Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, Pasteur 4-6, 400337 Cluj-Napoca, Romania.
| | - Romulus Tetean
- Faculty of Physics, "Babes Bolyai" University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania.
| | - Rares Stiufiuc
- Department of Pharmaceutical Physics-Biophysics, Faculty of Pharmacy, "Iuliu Hatieganu" University of Medicine and Pharmacy, Pasteur 6, 400349 Cluj-Napoca, Romania.
- Department of Bionanoscopy, MedFuture Research Center for Advance Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, Pasteur 4-6, 400337 Cluj-Napoca, Romania.
| | - Constantin Mihai Lucaciu
- Department of Pharmaceutical Physics-Biophysics, Faculty of Pharmacy, "Iuliu Hatieganu" University of Medicine and Pharmacy, Pasteur 6, 400349 Cluj-Napoca, Romania.
| |
Collapse
|
31
|
Wang B, Wang Q, Chen H, Zhou X, Wang H, Wang H, Zhang J, Feng W. Size-Dependent Translocation Pattern, Chemical and Biological Transformation of Nano- and Submicron-Sized Ferric Oxide Particles in the Central Nervous System. J Nanosci Nanotechnol 2016; 16:5553-5561. [PMID: 27427596 DOI: 10.1166/jnn.2016.11716] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The present study investigated the size-dependent translocation pattern and biological fate of intranasally instilled nano- and submicron-sized Fe2O3 particles (40 nm and 280 nm) in the CNS. The particle translocation in different parts of brain at 4 h, 12 h, 24 h, 3 d, 7 d, and 30 d after intranasal instillation were quantified using ICP-MS method. A biexponential model (correlation coefficient r = 0.98-0.99) was satisfactory to describe the particokinetic translocation behavior of Fe2O3 nanoparticles in brain. We found a size-dependent translocation pattern and a time-dependent translocation mode for nano- and submicron-sized Fe2O3 nanoparticles in the olfactory bulb, which are most significant in toxic concerns of nanoparticles in the CNS. The TEM images showed particle-like substances of approximately 35-50 nm were located in the axons of olfactory neurons and in the mitochondria and lysosomes of hippocampus cells in the 40 nm-Fe2O3 exposed mice. The synchrotron-based near-edge X-ray absorption spectroscopy (XANES) was used to identify the chemical forms of the nanoparticles in brain. The XANES results indicate that the presence of chemical speciation of the Fe2O3 nanoparticle (-17%) and protein-complex like apotransferrin-Fe2O3 (-16%) in the olfactory bulb, implying that self-coating of Fe2O3 nanoparticles with transferrin occurred in brain. All the findings suggest size-sensitive manners of nano- and submicron-sized Fe2O3 particles in the brain; the smaller one possesses evident detention properties in the CNS versus the larger one.
Collapse
|
32
|
Deng L, Li Q, Al-Rehili S, Omar H, Almalik A, Alshamsan A, Zhang J, Khashab NM. Hybrid Iron Oxide-Graphene Oxide-Polysaccharides Microcapsule: A Micro-Matryoshka for On-Demand Drug Release and Antitumor Therapy In Vivo. ACS Appl Mater Interfaces 2016; 8:6859-68. [PMID: 26915062 DOI: 10.1021/acsami.6b00322] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Premature drug release is a common drawback in stimuli-responsive drug delivery systems (DDS), especially if it depends on internal triggers, which are hard to control, or a single external stimulus, which can only have one function. Thus, many DDS systems have been reported that combined different triggers; however, limited success has been established in fine-tuning the release process, mainly due to the poor bioavailability and complexity of the reported designs. This paper reports the design of a hybrid microcapsule (h-MC) by a simple layer-by-layer technique comprising polysaccharides (sodium alginate, chitosan, and hyaluronic acid), iron oxide, and graphene oxide (GO). Electrostatic assembly of the oppositely charged polysaccharides and graphene sheets provided a robust structure in which to load drugs through pH control. The polysaccharide component ensured high biocompatibility, bioavailability, and tumor cells targeting. The alternative magnetic field and near-infrared laser triggerable Fe3O4@GO component provided for dual high-energy and high-penetration hyperthermia therapy. On-demand drug release from h-MC can be achieved by synchronizing these external triggers, making the release highly controllable. The synergistic effect of hyperthermia and chemotherapy was successfully confirmed in vitro and in vivo.
Collapse
Affiliation(s)
- Lin Deng
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Qiujin Li
- School of Textiles, Tianjin Polytechnic University, Key Laboratory of Advanced Textile Composites (Tianjin Polytechnic University), Ministry of Education , Tianjin 300387, China
| | - Safa'a Al-Rehili
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Haneen Omar
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Abdulaziz Almalik
- Center of Excellence in Nanomedicine, King Abdulaziz City for Science and Technology (KACST) , Riyadh, Kingdom of Saudi Arabia
| | - Aws Alshamsan
- Center of Excellence in Nanomedicine, King Abdulaziz City for Science and Technology (KACST) , Riyadh, Kingdom of Saudi Arabia
| | - Jianfei Zhang
- School of Textiles, Tianjin Polytechnic University, Key Laboratory of Advanced Textile Composites (Tianjin Polytechnic University), Ministry of Education , Tianjin 300387, China
| | - Niveen M Khashab
- Smart Hybrid Materials (SHMs) Laboratory, Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| |
Collapse
|
33
|
Dickmann RS, Strasburg GM, Romsos DR, Wilson LA, Lai GH, Huang H. Particle Size, Surface Area, and Amorphous Content as Predictors of Solubility and Bioavailability for Five Commercial Sources of Ferric Orthophosphate in Ready-To-Eat Cereal. Nutrients 2016; 8:129. [PMID: 26938556 PMCID: PMC4808859 DOI: 10.3390/nu8030129] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/19/2016] [Accepted: 02/23/2016] [Indexed: 11/28/2022] Open
Abstract
Ferric orthophosphate (FePO4) has had limited use as an iron fortificant in ready-to-eat (RTE) cereal because of its variable bioavailability, the mechanism of which is poorly understood. Even though FePO4 has desirable sensory properties as compared to other affordable iron fortificants, few published studies have well-characterized its physicochemical properties. Semi-crystalline materials such as FePO4 have varying degrees of molecular disorder, referred to as amorphous content, which is hypothesized to be an important factor in bioavailability. The objective of this study was to systematically measure the physicochemical factors of particle size, surface area, amorphous content, and solubility underlying the variation in FePO4 bioavailability. Five commercial FePO4 sources and ferrous sulfate were added to individual batches of RTE cereal. The relative bioavailability value (RBV) of each iron source, determined using the AOAC Rat Hemoglobin Repletion Bioassay, ranged from 51% to 99% (p < 0.05), which is higher than typically reported. Solubility in dilute HCl accurately predicted RBV (R2 = 0.93, p = 0.008). Amorphous content measured by Dynamic Vapor Sorption ranged from 1.7% to 23.8% and was a better determinant of solubility (R2 = 0.91; p = 0.0002) than surface area (R2 = 0.83; p = 0.002) and median particle size (R2 = 0.59; p = 0.12). The results indicate that while solubility of FePO4 is highly predictive of RBV, solubility, in turn, is strongly linked to amorphous content and surface area. This information may prove useful for the production of FePO4 with the desired RBV.
Collapse
Affiliation(s)
- Robin S Dickmann
- Kellogg Company, W.K. Kellogg Institute for Food and Nutrition Research, Battle Creek, 2 Hamblin Avenue, Battle Creek, MI 49015, USA.
| | - Gale M Strasburg
- Department of Food Science and Human Nutrition, Michigan State University, 469 Wilson Road, East Lansing, MI 48824, USA.
| | - Dale R Romsos
- Department of Food Science and Human Nutrition, Michigan State University, 469 Wilson Road, East Lansing, MI 48824, USA.
| | - Lori A Wilson
- Kellogg Company, W.K. Kellogg Institute for Food and Nutrition Research, Battle Creek, 2 Hamblin Avenue, Battle Creek, MI 49015, USA.
| | - Grace H Lai
- Kellogg Company, W.K. Kellogg Institute for Food and Nutrition Research, Battle Creek, 2 Hamblin Avenue, Battle Creek, MI 49015, USA.
| | - Hsimin Huang
- Kellogg Company, W.K. Kellogg Institute for Food and Nutrition Research, Battle Creek, 2 Hamblin Avenue, Battle Creek, MI 49015, USA.
| |
Collapse
|
34
|
Park J, Cho J, Kwon H, Kang M, Lee S, Roh YH, Kim KW, Lee SW. Liver Function Assessment Using Parenchyma-Specific Contrast-Enhanced Ultrasonography. Ultrasound Med Biol 2016; 42:430-437. [PMID: 26610713 DOI: 10.1016/j.ultrasmedbio.2015.08.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 02/02/2015] [Revised: 08/21/2015] [Accepted: 08/31/2015] [Indexed: 06/05/2023]
Abstract
The aim of this study was to assess hepatic functional reserve by analyzing the hepatic parenchyma enhancement curve of parenchyma-specific contrast-enhanced ultrasonography (CEUS). Fifty-two patients with cirrhosis who underwent CEUS and indocyanine green tests (ICG) because of a focal liver lesion were enrolled. We evaluated the hemodynamic-related parameters of the time-intensity curve and compared these findings with the ICG retention rate at 15 min (ICG R15). The correlation between the time from peak to one half (s) and ICG R15 was statistically significant and was relatively proportional to the ICG R15. A cut-off value of 149 s was determined for the time from peak to one half for abnormal ICG R15 (>14). The sensitivity and specificity were 85.7% and 92.3%, respectively, for the detection of abnormal ICG R15. In conclusion, the time from peak to one half of the time-intensity curve of parenchyma-specific CEUS of the liver can be a useful parameter to predict the hepatic reserve in liver cirrhosis.
Collapse
Affiliation(s)
- Jaehyung Park
- Department of Radiology, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Jinhan Cho
- Department of Radiology, Dong-A University College of Medicine, Busan, Republic of Korea.
| | - Heejin Kwon
- Department of Radiology, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Myongjin Kang
- Department of Radiology, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Sangyun Lee
- Department of Radiology, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Young-hoon Roh
- Department of Surgery, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Kwan Woo Kim
- Department of Surgery, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Sung Wook Lee
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, Republic of Korea
| |
Collapse
|
35
|
Jiang W, Chen B, Wu J, Xu S, Tian R. Synthesis and Evaluation of Thermo-Sensitive, Magnetic Fluorescent Nanocomposite as Trifunctional Drug Delivery Carrier. J Nanosci Nanotechnol 2016; 16:246-252. [PMID: 27398451 DOI: 10.1166/jnn.2016.10675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The thermo-sensitive magnetic fluorescent trifunctional nanocomposite (Fe₃O₄/ZnS@PNIPAM) has been synthesized via a facile route. The obtained biocompatible nanocomposite was composed of monodisperse heterostructural Fe₃O₄/ZnS core and a thermo-sensitive poly(N-isopropyl acrylamide) (PNIPAM) shell. Fe₃O₄/ZnS acted as magnetic response and fluorescence luminous body, PNIPAM acted as drug loaded platform which can adsorb and release drug controllably. Fe₃O₄/ZnS@PNIPAM was characterized and all of the results showed that it had excellent magnetic response, photostability and thermo-sensitivity. Moreover, the drug release studies in vitro showed that the release rate increased with increasing temperature. MTT assays in model HepG2 cells demonstrated that Fe₃O₄/ZnS@PNIPAM was practically non-toxic. Thus, our results revealed that Fe₃O₄/ZnS@PNIPAM would be used in biomedical fields such as targeted drug delivery, as well as cancer diagnosis and treatment in the nearly future.
Collapse
|
36
|
Hanot CC, Choi YS, Anani TB, Soundarrajan D, David AE. Effects of Iron-Oxide Nanoparticle Surface Chemistry on Uptake Kinetics and Cytotoxicity in CHO-K1 Cells. Int J Mol Sci 2015; 17:ijms17010054. [PMID: 26729108 PMCID: PMC4730299 DOI: 10.3390/ijms17010054] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 12/21/2015] [Accepted: 12/23/2015] [Indexed: 12/20/2022] Open
Abstract
Superparamagnetic iron-oxide nanoparticles (SPIONs) show great promise for multiple applications in biomedicine. While a number of studies have examined their safety profile, the toxicity of these particles on reproductive organs remains uncertain. The goal of this study was to evaluate the cytotoxicity of starch-coated, aminated, and PEGylated SPIONs on a cell line derived from Chinese Hamster ovaries (CHO-K1 cells). We evaluated the effect of particle diameter (50 and 100 nm) and polyethylene glycol (PEG) chain length (2k, 5k and 20k Da) on the cytotoxicity of SPIONs by investigating cell viability using the tetrazolium dye 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and sulforhodamine B (SRB) assays. The kinetics and extent of SPION uptake by CHO-K1 cells was also studied, as well as the resulting generation of intracellular reactive oxygen species (ROS). Cell toxicity profiles of SPIONs correlated strongly with their cellular uptake kinetics, which was strongly dependent on surface properties of the particles. PEGylation caused a decrease in both uptake and cytotoxicity compared to aminated SPIONs. Interestingly, 2k Da PEG-modifed SPIONs displayed the lowest cellular uptake and cytotoxicity among all studied particles. These results emphasize the importance of surface coatings when engineering nanoparticles for biomedical applications.
Collapse
Affiliation(s)
- Camille C Hanot
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA.
| | - Young Suk Choi
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA.
| | - Tareq B Anani
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA.
| | | | - Allan E David
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA.
| |
Collapse
|
37
|
Park EJ, Kim SW, Yoon C, Kim Y, Kim JS. Disturbance of ion environment and immune regulation following biodistribution of magnetic iron oxide nanoparticles injected intravenously. Toxicol Lett 2015; 243:67-77. [PMID: 26687879 DOI: 10.1016/j.toxlet.2015.11.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 10/02/2015] [Revised: 11/12/2015] [Accepted: 11/30/2015] [Indexed: 12/17/2022]
Abstract
Although it is expected that accumulation of metal oxide nanoparticles that can induce redox reaction in the biological system may influence ion homeostasis and immune regulation through generation of free radicals, the relationship is still unclear. In this study, mice received magnetic iron oxide nanoparticles (M-FeNPs, 2 and 4 mg/kg) a single via the tail vein, and their distribution in tissues was investigated over time (1, 4, and 13 weeks). In addition, we evaluated the effects on homeostasis of redox reaction-related elements, the ion environment and immune regulation. The iron level in tissues reached at the maximum on 4 weeks after injection and M-FeNPs the most distributed in the spleen at 13 weeks. Additionally, levels of redox reaction-related elements in tissues were notably altered since 1 week post-injection. While levels of K(+) and Na(+) in tissue tended to decrease with time, Ca(2+) levels reached to the maximum at 4 weeks post-injection. On 13 weeks post-injection, the increased percentages of neutrophils and eosinophils, the enhanced release of LDH, and the elevated secretion of IL-8 and IL-6 were clearly observed in the blood of M-FeNP-treated mice compared to the control. While expression of antigen presentation related-proteins and the maturation of dendritic cells were markedly inhibited following distribution of M-FeNPs, the expression of several chemokines, including CXCR2, CCR5, and CD123, was enhanced on the splenocytes of the treated groups. Taken together, we suggest that accumulation of M-FeNPs may induce adverse health effects by disturbing homeostasis of the immune regulation and ion environment.
Collapse
Affiliation(s)
- Eun-Jung Park
- Myunggok Eye Research Institute, Konyang University, Daejeon 302-718, South Korea.
| | - Sang-Wook Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-749, South Korea
| | - Cheolho Yoon
- Seoul Center, Korea Basic Science Institute, Seoul 126-16, South Korea
| | - Younghun Kim
- Department of Chemical Engineering, Kwangwoon University, Seoul 139-701, South Korea
| | - Jong Sung Kim
- Department of Community Health and Epidemiology, Faculty of Medicine, Dalhousie University, Halifax, Canada
| |
Collapse
|
38
|
Abstract
Iron oxide nanoparticles (IONPs) have been extensively used during the last two decades, either as effective bio-imaging contrast agents or as carriers of biomolecules such as drugs, nucleic acids and peptides for controlled delivery to specific organs and tissues. Most of these novel applications require elaborate tuning of the physiochemical and surface properties of the IONPs. As new IONPs designs are envisioned, synergistic consideration of the body's innate biological barriers against the administered nanoparticles and the short and long-term side effects of the IONPs become even more essential. There are several important criteria (e.g. size and size-distribution, charge, coating molecules, and plasma protein adsorption) that can be effectively tuned to control the in vivo pharmacokinetics and biodistribution of the IONPs. This paper reviews these crucial parameters, in light of biological barriers in the body, and the latest IONPs design strategies used to overcome them. A careful review of the long-term biodistribution and side effects of the IONPs in relation to nanoparticle design is also given. While the discussions presented in this review are specific to IONPs, some of the information can be readily applied to other nanoparticle systems, such as gold, silver, silica, calcium phosphates and various polymers.
Collapse
Affiliation(s)
- Hamed Arami
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington, 98195
| | - Amit Khandhar
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington, 98195
| | - Denny Liggitt
- Department of Comparative Medicine, University of Washington School of Medicine, Seattle, Washington, 98195
| | - Kannan M. Krishnan
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington, 98195
| |
Collapse
|
39
|
Lee J, Cho H, Choi J, Kim D, Hong D, Park JH, Yang SH, Choi IS. Chemical sporulation and germination: cytoprotective nanocoating of individual mammalian cells with a degradable tannic acid-FeIII complex. Nanoscale 2015; 7:18918-18922. [PMID: 26528931 DOI: 10.1039/c5nr05573c] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Individual mammalian cells were coated with cytoprotective and degradable films by cytocompatible processes maintaining the cell viability. Three types of mammalian cells (HeLa, NIH 3T3, and Jurkat cells) were coated with a metal-organic complex of tannic acid (TA) and ferric ion, and the TA-Fe(III) nanocoat effectively protected the coated mammalian cells against UV-C irradiation and a toxic compound. More importantly, the cell proliferation was controlled by programmed formation and degradation of the TA-Fe(III) nanocoat, mimicking the sporulation and germination processes found in nature.
Collapse
Affiliation(s)
- Juno Lee
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon 34141, Korea.
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Kong MY, Wang L, Chen QY, Xu XL, Lu WL. Study on the interaction of Fe(III) complex of BODIPY appended di(picolyl)amine with water and HeLa cells. Spectrochim Acta A Mol Biomol Spectrosc 2015; 151:790-795. [PMID: 26172466 DOI: 10.1016/j.saa.2015.07.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 03/23/2015] [Revised: 05/28/2015] [Accepted: 07/07/2015] [Indexed: 06/04/2023]
Abstract
The iron complex [(m-BDA)FeCl3] (Fe1) (m-BDA=8-[di(2-picolyl)amine-3-benzyl]-4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene) was characterized by spectroscopic methods. The emission intensity of Fe1 is weaker than that of m-BDA due to the electrostatic interaction between the Fe(III) ion and m-BDA. However, the coordination of water with the central Fe(III) ion in Fe1 changed metal-ligand charge transfer, thus the quenched emission at 509 nm was recovered. Furthermore, Fe1 can catalyze water oxidation to generate dioxygen when irradiated by green LED light (10W). In particular, the Fe1 can enter into HepG-2 cells and show different inhibition rates in black and under irradiation. The anticancer activity of Fe1 was greatly enhanced under irradiation. Our results demonstrate that Fe(III) complexes of BODIPY can be developed as new kinds of photodynamic agents.
Collapse
Affiliation(s)
- Meng-Yun Kong
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Li Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Qiu-Yun Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China.
| | - Xiao-Lei Xu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Wen-Long Lu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| |
Collapse
|
41
|
Park EJ, Oh SY, Lee SJ, Lee K, Kim Y, Lee BS, Kim JS. Chronic pulmonary accumulation of iron oxide nanoparticles induced Th1-type immune response stimulating the function of antigen-presenting cells. Environ Res 2015; 143:138-147. [PMID: 26492398 DOI: 10.1016/j.envres.2015.09.030] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [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: 07/15/2015] [Revised: 09/28/2015] [Accepted: 09/28/2015] [Indexed: 06/05/2023]
Abstract
Although there is growing evidence that suggests that pulmonary exposure to nanoparticles causes adverse health effects by modulating immune system of the body, available information is very limited. In this study, we investigated immune response following chronic pulmonary accumulation of iron oxide nanoparticles (FeNPs, Fe2O3). FeNPs have a needle-like shape in suspension (101.3±4.2 nm). On day 90 after a single intratracheal instillation (0.5, 1, and 2 mg/kg), the FeNPs remained in the lung and particle-laden macrophages were clearly observed in the BAL fluid of the treated-mice. The number of total cells and proportions of neutrophils and lymphocytes significantly increased at 2 mg/kg dose, and the percentage of apoptotic cells and LDH release increased in a dose-dependent manner. We also found that Th1-polarized inflammatory response was induced in the lung of the treated group accompanying the elevated secretion of chemokines, including GM-CSF, MCP-1, and MIP-1. Additionally, FeNPs enhanced the expression of antigen presentation-related proteins, including CD80, CD86, and MHC class II, on antigen-presenting cells in BAL fluid. Taken together, we suggest that chronic pulmonary accumulation of FeNPs may induce Th1-polarized immune response augmenting the function of antigen-presenting cells in the lung.
Collapse
Affiliation(s)
- Eun-Jung Park
- Myunggok Eye Research Institute, Konyang University, 685, Gasuwon-dong, Seo-Gu, Daejeon 302-718, Republic of Korea.
| | - Seung Yun Oh
- Department of Chemical Engineering, Kwangwoon University, Seoul 139-701, Republic of Korea
| | - Sang Jin Lee
- Inhalation Toxicology Center, Korea Institute of Toxicology, Jeongeup 580-185, Republic of Korea
| | - Kyuhong Lee
- Inhalation Toxicology Center, Korea Institute of Toxicology, Jeongeup 580-185, Republic of Korea
| | - Younghun Kim
- Department of Chemical Engineering, Kwangwoon University, Seoul 139-701, Republic of Korea
| | - Byoung-Seok Lee
- Toxicologic Pathology Center, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Jong Sung Kim
- Department of Community Health and Epidemiology, Faculty of Medicine, Dalhousie University, Halifax, Canada
| |
Collapse
|
42
|
Wei Y, Liao R, Liu H, Li H, Xu H, Zhou Q. Biocompatible Low-Retention Superparamagnetic Iron Oxide Nanoclusters as Contrast Agents for Magnetic Resonance Imaging of Liver Tumor. J Biomed Nanotechnol 2015; 11:854-64. [PMID: 26349397 DOI: 10.1166/jbn.2015.2042] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Although superparamagnetic iron oxide (SPIO) nanoparticles have been developed as a contrast agent for magnetic resonance imaging (MRI), acute iron overload due to the persistently high retention of SPIOs in the liver and spleen that are slowly converted to ferroproteins is a serious safety concern. Here, we report that the addition of poly-L-lysine polymers to an SPIO hydroxyethyl starch solution produced tightly controlled, monodispersed nanoparticles in a size-dependent manner as effective contrast agents for the MRI of liver tumors. High MRI contrast was demonstrated with an orthotopic liver tumor model at a low injection dose. Simultaneously, rapid bioclearance of excess iron in the lung and spleen and in blood serum was observed within 24 h post-injection. The full excretion of excess iron was confirmed in urine post-intravenous injection, suggesting that the effective clearance of SPIOs could be achieved with our SPIO nanoclusters as a liver imaging contrast agent to resolve acute iron overload in the clinical usage of SPIOs as a contrast agent.
Collapse
|
43
|
Song S, Guo H, Jiang Z, Jin Y, Wu Y, An X, Zhang Z, Sun K, Dou H. Self-assembled microbubbles as contrast agents for ultrasound/magnetic resonance dual-modality imaging. Acta Biomater 2015; 24:266-78. [PMID: 26112374 DOI: 10.1016/j.actbio.2015.06.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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: 01/12/2015] [Revised: 05/29/2015] [Accepted: 06/17/2015] [Indexed: 01/26/2023]
Abstract
In this work, superparamagnetic self-assembled microbubbles (SAMBs) consisting of "Poly(acrylic acid)-Iron oxide nanoparticles-Polyamine" sandwich-like shells and tetradecafluorohexane cores were fabricated by a template-free self-assembly approach. The SAMBs exhibit not only magnetic resonance (MR) T2 imaging functionality, but also ultrasound (US) image contrast, showing great potential as US/MR dual contrast agents. The diameters of the SAMBs can be tuned easily from 450nm to 1300nm by changing the precursor ratio, and this size variation directly affects their in vitro MRI and US signals. The SAMBs also exhibit in vivo contrast enhancement capabilities in rat liver with injection through portal vein, for both MR and US imaging. Additionally, the biodistribution of SAMBs over time suggests normal systemic metabolic activity through the spleen. The results show that the Fe content in rat liver reduces to a level of which Fe cannot be detected in 45days. The SAMBs exhibit no obvious damage to the primary organs of rat during the metabolic process, indicating their good biocompatibility in vivo.
Collapse
Affiliation(s)
- Sheng Song
- The State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Heze Guo
- The State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Zequan Jiang
- The State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Yuqing Jin
- Department of Plastic and Reconstructive Surgery, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, PR China
| | - Ying Wu
- Department of Ultrasound, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, PR China
| | - Xiao An
- Department of Neoplasms and Interventional Radiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, PR China
| | - Zhaofeng Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, PR China.
| | - Kang Sun
- The State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
| | - Hongjing Dou
- The State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
| |
Collapse
|
44
|
Zhou H, Qian W, Uckun FM, Wang L, Wang YA, Chen H, Kooby D, Yu Q, Lipowska M, Staley CA, Mao H, Yang L. IGF1 Receptor Targeted Theranostic Nanoparticles for Targeted and Image-Guided Therapy of Pancreatic Cancer. ACS Nano 2015; 9:7976-91. [PMID: 26242412 PMCID: PMC4908958 DOI: 10.1021/acsnano.5b01288] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Overcoming resistance to chemotherapy is a major and unmet medical challenge in the treatment of pancreatic cancer. Poor drug delivery due to stromal barriers in the tumor microenvironment and aggressive tumor biology are additional impediments toward a more successful treatment of pancreatic cancer. In attempts to address these challenges, we developed IGF1 receptor (IGF1R)-directed, multifunctional theranostic nanoparticles for targeted delivery of therapeutic agents into IGF1R-expressing drug-resistant tumor cells and tumor-associated stromal cells. These nanoparticles were prepared by conjugating recombinant human IGF1 to magnetic iron oxide nanoparticles (IONPs) carrying the anthracycline doxorubicin (Dox) as the chemotherapeutic payload. Intravenously administered IGF1-IONPs exhibited excellent tumor targeting and penetration in an orthotopic patient-derived xenograft (PDX) model of pancreatic cancer featuring enriched tumor stroma and heterogeneous cancer cells. IGF1R-targeted therapy using the theranostic IGF1-IONP-Dox significantly inhibited the growth of pancreatic PDX tumors. The effects of the intratumoral nanoparticle delivery and therapeutic responses in the orthotopic pancreatic PDX tumors could be detected by magnetic resonance imaging (MRI) with IONP-induced contrasts. Histological analysis showed that IGF1R-targeted delivery of Dox significantly inhibited cell proliferation and induced apoptotic cell death of pancreatic cancer cells. Therefore, further development of IGF1R-targeted theranostic IONPs and MRI-guided cancer therapy as a precision nanomedicine may provide the basis for more effective treatment of pancreatic cancer.
Collapse
Affiliation(s)
- Hongyu Zhou
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Weiping Qian
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Fatih M. Uckun
- University of Southern California Norris Comprehensive Cancer Center, Children's Center for Cancer and Blood Diseases, Children's Hospital Los Angeles, Los Angeles, California 90027, United States
| | - Liya Wang
- Departments of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Y. Andrew Wang
- Ocean Nanotech, LLC, San Diego, California 92126, United States
| | - Hongyu Chen
- Ocean Nanotech, LLC, San Diego, California 92126, United States
| | - David Kooby
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Qian Yu
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Malgorzata Lipowska
- Departments of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Charles A. Staley
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Hui Mao
- Departments of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Lily Yang
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
- Departments of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, United States
- Address correspondence to .
| |
Collapse
|
45
|
Kolosnjaj-Tabi J, Javed Y, Lartigue L, Volatron J, Elgrabli D, Marangon I, Pugliese G, Caron B, Figuerola A, Luciani N, Pellegrino T, Alloyeau D, Gazeau F. The One Year Fate of Iron Oxide Coated Gold Nanoparticles in Mice. ACS Nano 2015; 9:7925-39. [PMID: 26168364 DOI: 10.1021/acsnano.5b00042] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Safe implementation of nanotechnology and nanomedicine requires an in-depth understanding of the life cycle of nanoparticles in the body. Here, we investigate the long-term fate of gold/iron oxide heterostructures after intravenous injection in mice. We show these heterostructures degrade in vivo and that the magnetic and optical properties change during the degradation process. These particles eventually eliminate from the body. The comparison of two different coating shells for heterostructures, amphiphilic polymer or polyethylene glycol, reveals the long lasting impact of initial surface properties on the nanocrystal degradability and on the kinetics of elimination of magnetic iron and gold from liver and spleen. Modulation of nanoparticles reactivity to the biological environment by the choice of materials and surface functionalization may provide new directions in the design of multifunctional nanomedicines with predictable fate.
Collapse
Affiliation(s)
- Jelena Kolosnjaj-Tabi
- Laboratoire Matières et Systèmes Complexes, UMR 7057 CNRS/Université Paris Diderot , 10 rue Alice Domon et Léonie Duquet, Paris F-75205 Cedex 13, France
- Inserm U970, Paris Cardiovascular Research Center-PARCC/Université Paris-Descartes , 56 rue Leblanc, Paris 75015, France
| | - Yasir Javed
- Laboratoire Matériaux et Phénomènes Quantiques, UMR 7162 CNRS/Université Paris Diderot , 10 rue Alice Domon et Léonie Duquet, Paris F-75205 Cedex 13, France
| | - Lénaic Lartigue
- Laboratoire Matières et Systèmes Complexes, UMR 7057 CNRS/Université Paris Diderot , 10 rue Alice Domon et Léonie Duquet, Paris F-75205 Cedex 13, France
- Laboratoire Matériaux et Phénomènes Quantiques, UMR 7162 CNRS/Université Paris Diderot , 10 rue Alice Domon et Léonie Duquet, Paris F-75205 Cedex 13, France
| | - Jeanne Volatron
- Laboratoire Matières et Systèmes Complexes, UMR 7057 CNRS/Université Paris Diderot , 10 rue Alice Domon et Léonie Duquet, Paris F-75205 Cedex 13, France
| | - Dan Elgrabli
- Laboratoire Matières et Systèmes Complexes, UMR 7057 CNRS/Université Paris Diderot , 10 rue Alice Domon et Léonie Duquet, Paris F-75205 Cedex 13, France
| | - Iris Marangon
- Laboratoire Matières et Systèmes Complexes, UMR 7057 CNRS/Université Paris Diderot , 10 rue Alice Domon et Léonie Duquet, Paris F-75205 Cedex 13, France
| | | | - Benoit Caron
- ISTeP, UMR 7193 CNRS/Université Pierre et Marie Curie , 4 place Jussieu, Paris 75005, France
| | - Albert Figuerola
- Istituto Italiano di Tecnologia , via Morego 30, Genova 16163, Italy
| | - Nathalie Luciani
- Laboratoire Matières et Systèmes Complexes, UMR 7057 CNRS/Université Paris Diderot , 10 rue Alice Domon et Léonie Duquet, Paris F-75205 Cedex 13, France
| | - Teresa Pellegrino
- Istituto Italiano di Tecnologia , via Morego 30, Genova 16163, Italy
| | - Damien Alloyeau
- Laboratoire Matériaux et Phénomènes Quantiques, UMR 7162 CNRS/Université Paris Diderot , 10 rue Alice Domon et Léonie Duquet, Paris F-75205 Cedex 13, France
| | - Florence Gazeau
- Laboratoire Matières et Systèmes Complexes, UMR 7057 CNRS/Université Paris Diderot , 10 rue Alice Domon et Léonie Duquet, Paris F-75205 Cedex 13, France
| |
Collapse
|
46
|
Andersen SL, Gyrup C, Handberg A, Nielsen GL. Oral iron absorption test should not be performed with iron drops containing ferric iron. Dan Med J 2015; 62:A5116. [PMID: 26239588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
INTRODUCTION In an oral iron absorption test (OIAT), the rise in plasma iron concentration after oral ingestion of iron is a measure of intestinal iron absorption. We describe results of the OIAT using two different formulations of oral iron drops. METHODS The study included all patients who had an OIAT performed at the Department of Internal Medicine, Farsø, Aalborg University Hospital, Denmark, from 1 January 2013 to 17 June 2014 (n = 24) using ferrous iron drops "Glycifer" and from 18 June to 3 November 2014 (n = 17) using ferric iron drops "Medic". A venous blood sample was drawn before and then 90, 180 and 240 min. after the intake of 9 ml iron drops of the "Glycifer" brand (270 mg ferrous iron) or the intake of 11 ml iron drops of the "Medic" brand (264 mg ferric iron). RESULTS The patient characteristics (ferrous versus ferric iron drops) were similar in terms of gender, age, haemoglobin, ferritin and previous gastric bypass surgery. The fasting baseline plasma iron concentration was median 5 μmol/l in both groups (p = 0.4). The maximum plasma iron concen-tration increase from baseline after oral intake of the iron drops was median 2 μmol/l (range: 0-8 μmol/l) in the group given ferric iron drops and 48 μmol/l (range: 14-78 μmol/l) when ferrous iron drops were used (p < 0.001). CONCLUSION OIAT performed with ferrous or ferric iron drops showed very different results with a lack of plasma iron concentration increase after ingestion of ferric iron drops. FUNDING none. TRIAL REGISTRATION not relevant.
Collapse
|
47
|
Bouchard M, Létourneau M, Sarra-Bournet C, Laprise-Pelletier M, Turgeon S, Chevallier P, Lagueux J, Laroche G, Fortin MA. Rapid Nucleation of Iron Oxide Nanoclusters in Aqueous Solution by Plasma Electrochemistry. Langmuir 2015; 31:7633-7643. [PMID: 26086241 DOI: 10.1021/acs.langmuir.5b01235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Progresses in cold atmospheric plasma technologies have made possible the synthesis of nanoparticles in aqueous solutions using plasma electrochemistry principles. In this contribution, a reactor based on microhollow cathodes and operating at atmospheric pressure was developed to synthesize iron-based nanoclusters (nanoparticles). Argon plasma discharges are generated at the tip of the microhollow cathodes, which are placed near the surface of an aqueous solution containing iron salts (FeCl2 and FeCl3) and surfactants (biocompatible dextran). Upon reaction at the plasma-liquid interface, reduction processes occur and lead to the nucleation of ultrasmall iron-based nanoclusters (IONCs). The purified IONCs were investigated by XPS and FTIR, which confirmed that the nucleated clusters contain a highly hydrated form of iron oxide, close to the stoichiometric constituents of α-FeOOH (goethite) or Fe5O3(OH)9 (ferrihydrite). Relaxivity values of r1 = 0.40 mM(-1) s(-1) and r2/r1 = 1.35 were measured (at 1.41 T); these are intermediate values between the relaxometric properties of superparamagnetic iron oxide nanoparticles used in medicine (USPIO) and those of ferritin, an endogenous contrast agent. Plasma-synthesized IONCs were injected into the mouse model and provided positive vascular signal enhancement in T1-w. MRI for a period of 10-20 min. Indications of rapid and strong elimination through the urinary and gastrointestinal tracts were also found. This study is the first to report on the development of a compact reactor suitable for the synthesis of MRI iron-based contrast media solutions, on site and upon demand.
Collapse
Affiliation(s)
- Mathieu Bouchard
- †Axe Médecine Régénératrice, Centre Hospitalier Universitaire (CHU) de Québec, 10 rue de l'Espinay, Québec, G1L 3L5, Canada
| | - Mathieu Létourneau
- †Axe Médecine Régénératrice, Centre Hospitalier Universitaire (CHU) de Québec, 10 rue de l'Espinay, Québec, G1L 3L5, Canada
| | - Christian Sarra-Bournet
- †Axe Médecine Régénératrice, Centre Hospitalier Universitaire (CHU) de Québec, 10 rue de l'Espinay, Québec, G1L 3L5, Canada
| | - Myriam Laprise-Pelletier
- †Axe Médecine Régénératrice, Centre Hospitalier Universitaire (CHU) de Québec, 10 rue de l'Espinay, Québec, G1L 3L5, Canada
| | - Stéphane Turgeon
- †Axe Médecine Régénératrice, Centre Hospitalier Universitaire (CHU) de Québec, 10 rue de l'Espinay, Québec, G1L 3L5, Canada
| | - Pascale Chevallier
- †Axe Médecine Régénératrice, Centre Hospitalier Universitaire (CHU) de Québec, 10 rue de l'Espinay, Québec, G1L 3L5, Canada
| | - Jean Lagueux
- †Axe Médecine Régénératrice, Centre Hospitalier Universitaire (CHU) de Québec, 10 rue de l'Espinay, Québec, G1L 3L5, Canada
| | - Gaétan Laroche
- †Axe Médecine Régénératrice, Centre Hospitalier Universitaire (CHU) de Québec, 10 rue de l'Espinay, Québec, G1L 3L5, Canada
| | - Marc-A Fortin
- †Axe Médecine Régénératrice, Centre Hospitalier Universitaire (CHU) de Québec, 10 rue de l'Espinay, Québec, G1L 3L5, Canada
| |
Collapse
|
48
|
Chamorro S, Gutiérrez L, Vaquero MP, Verdoy D, Salas G, Luengo Y, Brenes A, José Teran F. Safety assessment of chronic oral exposure to iron oxide nanoparticles. Nanotechnology 2015; 26:205101. [PMID: 25927227 DOI: 10.1088/0957-4484/26/20/205101] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Iron oxide nanoparticles with engineered physical and biochemical properties are finding a rapidly increasing number of biomedical applications. However, a wide variety of safety concerns, especially those related to oral exposure, still need to be addressed for iron oxide nanoparticles in order to reach clinical practice. Here, we report on the effects of chronic oral exposure to low doses of γ-Fe2O3 nanoparticles in growing chickens. Animal observation, weight, and diet intake reveal no adverse signs, symptoms, or mortality. No nanoparticle accumulation was observed in liver, spleen, and duodenum, with feces as the main excretion route. Liver iron level and duodenal villi morphology reflect the bioavailability of the iron released from the partial transformation of γ-Fe2O3 nanoparticles in the acid gastric environment. Duodenal gene expression studies related to the absorption of iron from γ-Fe2O3 nanoparticles indicate the enhancement of a ferric over ferrous pathway supporting the role of mucins. Our findings reveal that oral administration of iron oxide nanoparticles is a safe route for drug delivery at low nanoparticle doses.
Collapse
Affiliation(s)
- Susana Chamorro
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición, ICTAN-CSIC, Ciudad Universitaria, José Antonio Novais, 10, 28040 Madrid, Spain
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Dan M, Bae Y, Pittman TA, Yokel RA. Alternating magnetic field-induced hyperthermia increases iron oxide nanoparticle cell association/uptake and flux in blood-brain barrier models. Pharm Res 2015; 32:1615-25. [PMID: 25377069 PMCID: PMC4803069 DOI: 10.1007/s11095-014-1561-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [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: 08/04/2014] [Accepted: 10/27/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE Superparamagnetic iron oxide nanoparticles (IONPs) are being investigated for brain cancer therapy because alternating magnetic field (AMF) activates them to produce hyperthermia. For central nervous system applications, brain entry of diagnostic and therapeutic agents is usually essential. We hypothesized that AMF-induced hyperthermia significantly increases IONP blood-brain barrier (BBB) association/uptake and flux. METHODS Cross-linked nanoassemblies loaded with IONPs (CNA-IONPs) and conventional citrate-coated IONPs (citrate-IONPs) were synthesized and characterized in house. CNA-IONP and citrate-IONP BBB cell association/uptake and flux were studied using two BBB Transwell(®) models (bEnd.3 and MDCKII cells) after conventional and AMF-induced hyperthermia exposure. RESULTS AMF-induced hyperthermia for 0.5 h did not alter CNA-IONP size but accelerated citrate-IONP agglomeration. AMF-induced hyperthermia for 0.5 h enhanced CNA-IONP and citrate-IONP BBB cell association/uptake. It also enhanced the flux of CNA-IONPs across the two in vitro BBB models compared to conventional hyperthermia and normothermia, in the absence of cell death. Citrate-IONP flux was not observed under these conditions. AMF-induced hyperthermia also significantly enhanced paracellular pathway flux. The mechanism appears to involve more than the increased temperature surrounding the CNA-IONPs. CONCLUSIONS Hyperthermia induced by AMF activation of CNA-IONPs has potential to increase the BBB permeability of therapeutics for the diagnosis and therapy of various brain diseases.
Collapse
Affiliation(s)
- Mo Dan
- Graduate Center for Toxicology, University of Kentucky Lexington, Kentucky 40536, USA; National Center for Safety Evaluation of Drugs, National Institutes for Food and Drug Control, Beijing 100176, China; Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky Academic Medical Center, 335 Biopharmaceutical Complex (College of Pharmacy) Building, Lexington, Kentucky 40536-0596, USA
| | - Younsoo Bae
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky Academic Medical Center, 335 Biopharmaceutical Complex (College of Pharmacy) Building, Lexington, Kentucky 40536-0596, USA
| | - Thomas A. Pittman
- Department of Neurosurgery, University of Kentucky Lexington, Kentucky 40536, USA
| | - Robert A. Yokel
- Graduate Center for Toxicology, University of Kentucky Lexington, Kentucky 40536, USA; Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky Academic Medical Center, 335 Biopharmaceutical Complex (College of Pharmacy) Building, Lexington, Kentucky 40536-0596, USA
| |
Collapse
|
50
|
Stefi AL, Sarantopoulou E, Kollia Z, Spyropoulos-Antonakakis N, Bourkoula A, Petrou PS, Kakabakos S, Soras G, Trohopoulos PN, Nizamutdinov AS, Semashko VV, Cefalas AC. Nanothermodynamics mediates drug delivery. Adv Exp Med Biol 2015; 822:213-20. [PMID: 25416996 DOI: 10.1007/978-3-319-08927-0_28] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
The efficiency of penetration of nanodrugs through cell membranes imposes further complexity due to nanothermodynamic and entropic potentials at interfaces. Action of nanodrugs is effective after cell membrane penetration. Contrary to diffusion of water diluted common molecular drugs, nanosize imposes an increasing transport complexity at boundaries and interfaces (e.g., cell membrane). Indeed, tiny dimensional systems brought the concept of "nanothermodynamic potential," which is proportional to the number of nanoentities in a macroscopic system, from either the presence of surface and edge effects at the boundaries of nanoentities or the restriction of the translational and rotational degrees of freedom of molecules within them. The core element of nanothermodynamic theory is based on the assumption that the contribution of a nanosize ensemble to the free energy of a macroscopic system has its origin at the excess interaction energy between the nanostructured entities. As the size of a system is increasing, the contribution of the nanothermodynamic potential to the free energy of the system becomes negligible. Furthermore, concentration gradients at boundaries, morphological distribution of nanoentities, and restriction of the translational motion from trapping sites are the source of strong entropic potentials at the interfaces. It is evident therefore that nanothermodynamic and entropic potentials either prevent or allow enhanced concentration very close to interfaces and thus strongly modulate nanoparticle penetration within the intracellular region. In this work, it is shown that nano-sized polynuclear iron (III)-hydroxide in sucrose nanoparticles have a nonuniform concentration around the cell membrane of macrophages in vivo, compared to uniform concentration at hydrophobic prototype surfaces. The difference is attributed to the presence of entropic and nanothermodynamic potentials at interfaces.
Collapse
Affiliation(s)
- Aikaterina L Stefi
- National Hellenic Research Foundation, Theoretical and Physical Chemistry Institute, 48 Vassileos Constantinou Avenue, Athens, 11635, Greece,
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|