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Nazarizadeh P, Akbarzadeh AR, Pazouki M. Wastewater purification from Rhodamine B and Gemifeloxacine by graphene oxide/pectin/ferrite nanocomposite: A novel molecular dynamics simulation for experimental contaminants removing. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2023; 95:e10921. [PMID: 37669774 DOI: 10.1002/wer.10921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/03/2023] [Accepted: 08/13/2023] [Indexed: 09/07/2023]
Abstract
In this study, the synthesized nanocomposite was evaluated novel graphene oxide/pectin/ferrite (GOPF) adsorbent to the adsorption of Rhodamine B (RhB) and Gemifloxacin (GEM) from wastewater. Theoretical studies were carried out using quantum simulation via the Forcite module in Material Studio 2017. The simulation results demonstrated RhB and GEM adsorption over other dyes and drugs. The synthesized nanocomposite was identified by BET, TGA, FT-IR, FE-SEM, XRD, VSM, and EDS. The nanocomposite's ability to effectively take RhB and GEM from an aqueous solution was checked by performing a series of experiments based on the effect of adsorbent dose, initial condensation, contact time, pH, and temperature. The nanocomposite kinetics follow a PSO. The Freundlich isotherm model was applied for maximum adsorption capacity of GEM (124.37 mg/g) and RhB (86.60 mg/g) on GOPF nanocomposite. According to the antibacterial activity test, the synthesized nanocomposite can kill bacteria 5 mm in diameter. Also, the anti-cancer test of nanocomposite was done with 75% viability in high concentrations of nanocomposite. Thus, GOPF application results are not only suitable for dyes but only satisfying for drugs. PRACTITIONER POINTS: GOPF nanocomposite was fabricated for adsorption dye and drug and characterized. The effect of different process parameters, pH, catalyst dosage, contact time, and temperature effect was surveyed. The MD simulation were investigated to adsorb various dyes and drugs. The equilibrium isotherm and adsorption kinetic follow from Freundlich and pseudo-second-order kinetics; GOPF nanocomposite was used for about six cycles. The antibacterial activity and anticancer test of GOPF nanocomposite were investigated by satisfying results.
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Affiliation(s)
- Pegah Nazarizadeh
- Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
| | - Ali Reza Akbarzadeh
- Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
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Hosseinpour S, Dai H, Walsh LJ, Xu C. Mesoporous Core-Cone Silica Nanoparticles Can Deliver miRNA-26a to Macrophages to Exert Immunomodulatory Effects on Osteogenesis In Vitro. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111755. [PMID: 37299658 DOI: 10.3390/nano13111755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023]
Abstract
Nanoparticles can play valuable roles in delivering nucleic acids, including microRNAs (miRNA), which are small, non-coding RNA segments. In this way, nanoparticles may exert post-transcriptional regulatory influences on various inflammatory conditions and bone disorders. This study used biocompatible, core-cone-structured, mesoporous silica nanoparticles (MSN-CC) to deliver miRNA-26a to macrophages in order to influence osteogenesis in vitro. The loaded nanoparticles (MSN-CC-miRNA-26) showed low-level toxicity towards macrophages (RAW 264.7 cells) and were internalized efficiently, causing the reduced expression of pro-inflammatory cytokines, as seen via real-time PCR and cytokine immunoassays. The conditioned macrophages created a favorable osteoimmune environment for MC3T3-E1 preosteoblasts, driving osteogenic differentiation with enhanced osteogenic marker expression, alkaline phosphatase (ALP) production, extracellular matrix formation, and calcium deposition. An indirect co-culture system revealed that direct osteogenic induction and immunomodulation by MSN-CC-miRNA-26a synergistically increased bone production due to the crosstalk between MSN-CC-miRNA-26a-conditioned macrophages and MSN-CC-miRNA-26a-treated preosteoblasts. These findings demonstrate the value of nanoparticle delivery of miR-NA-26a using MSN-CC for suppressing the production of pro-inflammatory cytokines with macrophages and for driving osteogenic differentiation in preosteoblasts via osteoimmune modulation.
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Affiliation(s)
- Sepanta Hosseinpour
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia
| | - Huan Dai
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia
| | - Laurence J Walsh
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia
| | - Chun Xu
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia
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3
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Saydam M, Timur SS, Vural İ, Takka S. Cell culture and pharmacokinetic evaluation of a solid dosage formulation containing a water-insoluble orphan drug manufactured by FDM-3DP technology. Int J Pharm 2022; 628:122307. [DOI: 10.1016/j.ijpharm.2022.122307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 11/28/2022]
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4
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Antonio LC, Ribovski L, Pincela Lins PM, Zucolotto V. The amount of dextran in PLGA nanocarriers modulates protein corona and promotes cell membrane damage. J Mater Chem B 2022; 10:8282-8294. [PMID: 36155711 DOI: 10.1039/d2tb01296k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polymeric nanocarriers (NCs) are efficient vehicles to prevent drug unspecific biodistribution and increase the drug amounts delivered to tumor tissues. However, some toxicological aspects of NCs still lack a comprehensive assessment, such as their effects on cellular processes that lead to toxicity. We evaluate the interaction of poly(lactic-co-glycolic acid) (PLGA) NCs prepared using dextran (Dex) and Pluronic®-F127 as stabilizing agents with myocardial cells (H9C2), breast adenocarcinoma cells (MCF-7) and macrophages (RAW 264.7) to address the effect of Dex in PLGA NC formulations. By an emulsion diffusion method, doxorubicin-loaded NCs were prepared with no Dex (PLGA-DOX), 1% (w/v) Dex (Dex1/PLGA-DOX) and 5% (w/v) Dex (Dex5/PLGA-DOX). Uptake analyses revealed a significant reduction in Dex5/PLGA-DOX NC uptake by H9C2 and MCF-7, as in the case of Dex1/PLGA-DOX NCs in the absence of in vitro protein corona, revealing an effect of dextran concentration on the formation of protein corona. RAW 264.7 cells presented a greater uptake of Dex5/PLGA-DOX NCs than the other NCs likely because of receptor mediated endocytosis, since C-type lectins like SIGN-R1, mannose receptors and scavenger receptor type 1 that are expressed in RAW 264.7 can mediate Dex uptake. Despite the lower uptake, Dex5/PLGA-DOX NCs promote the generation of reactive oxygen species and oxidative membrane damage in MCF-7 and H9C2 even though cellular metabolic activity assessed by MTT was comparable among all the NCs. Our results highlight the importance of an in-depth investigation of the NC-cell interaction considering additional mechanisms of damage apart from metabolic variations, as nanoparticle-induced damage is not limited to imbalance in metabolic processes, but also associated with other mechanisms, e.g., membrane and DNA damage.
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Affiliation(s)
- Luana Corsi Antonio
- University of São Paulo, Physics Institute of São Carlos, Nanomedicine and Nanotoxicology Group, CP 369, 13566-590, São Carlos, SP, Brazil
| | - Laís Ribovski
- University of São Paulo, Physics Institute of São Carlos, Nanomedicine and Nanotoxicology Group, CP 369, 13566-590, São Carlos, SP, Brazil.,University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands.
| | - Paula Maria Pincela Lins
- University of São Paulo, Physics Institute of São Carlos, Nanomedicine and Nanotoxicology Group, CP 369, 13566-590, São Carlos, SP, Brazil
| | - Valtencir Zucolotto
- University of São Paulo, Physics Institute of São Carlos, Nanomedicine and Nanotoxicology Group, CP 369, 13566-590, São Carlos, SP, Brazil
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5
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Influence of Critical Parameters on Cytotoxicity Induced by Mesoporous Silica Nanoparticles. NANOMATERIALS 2022; 12:nano12122016. [PMID: 35745355 PMCID: PMC9228019 DOI: 10.3390/nano12122016] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/30/2022] [Accepted: 06/06/2022] [Indexed: 02/01/2023]
Abstract
Mesoporous Silica Nanoparticles (MSNs) have received increasing attention in biomedical applications due to their tuneable pore size, surface area, size, surface chemistry, and thermal stability. The biocompatibility of MSNs, although generally believed to be satisfactory, is unclear. Physicochemical properties of MSNs, such as diameter size, morphology, and surface charge, control their biological interactions and toxicity. Experimental conditions also play an essential role in influencing toxicological results. Therefore, the present study includes studies from the last five years to statistically analyse the effect of various physicochemical features on MSN-induced in-vitro cytotoxicity profiles. Due to non-normally distributed data and the presence of outliers, a Kruskal–Wallis H test was conducted on different physicochemical characteristics, including diameter sizes, zeta-potential measurements, and functionalisation of MSNs, based on the viability results, and statistical differences were obtained. Subsequently, pairwise comparisons were performed using Dunn’s procedure with a Bonferroni correction for multiple comparisons. Other experimental parameters, such as type of cell line used, cell viability measurement assay, and incubation time, were also explored and analysed for statistically significant results.
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6
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Ezzat AA, Tammam SN, Hanafi RS, Rashad O, Osama A, Abdelnaby E, Magdeldin S, Mansour S. Different Serum, Different Protein Corona! The Impact of the Serum Source on Cellular Targeting of Folic Acid-Modified Chitosan-Based Nanoparticles. Mol Pharm 2022; 19:1635-1646. [PMID: 35380849 DOI: 10.1021/acs.molpharmaceut.2c00108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The nanoparticle (NP) protein corona represents an interface between biological components and NPs, dictating their cellular interaction and biological fate. To assess the success of cellular targeting, NPs modified with targeting ligands are incubated with target cells in serum-free culture medium or in the presence of fetal bovine serum (FBS). In the former, the role of the corona is overlooked, and in the latter, the effects of a corona that does not represent the one forming in humans nor the respective disease state are considered. Via proteomic analysis, we demonstrate how the difference in the composition of FBS, sera from healthy human volunteers, and breast cancer patients (BrCr Pt) results in the formation of completely different protein coronas around the same NP. Successful in vitro targeting of breast cancer cells was only observed when NPs were incubated with target cells in the presence of BrCr Pt sera only. In such cases, the success of targeting was not attributed to the targeting ligand itself, but to the adsorption of specific serum proteins that facilitate NP uptake by cancer cells in the presence of BrCr Pt sera. This work therefore demonstrates how the serum source affects the reliability of in vitro experiments assessing NP-cell interactions and the consequent success or failure of active targeting and may in fact indicate an additional reason for the limited clinical success of drug targeting by NPs in cancer.
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Affiliation(s)
- Aya A Ezzat
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835 Cairo, Egypt
| | - Salma N Tammam
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835 Cairo, Egypt
| | - Rasha S Hanafi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835 Cairo, Egypt
| | - Omar Rashad
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835 Cairo, Egypt
| | - Aya Osama
- Proteomics and Metabolomics Unit, Department of Basic Research, Children's Cancer Hospital Egypt 57357, 11441 Cairo, Egypt
| | - Eman Abdelnaby
- Proteomics and Metabolomics Unit, Department of Basic Research, Children's Cancer Hospital Egypt 57357, 11441 Cairo, Egypt.,Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, 41522 Ismailia, Egypt
| | - Sameh Magdeldin
- Proteomics and Metabolomics Unit, Department of Basic Research, Children's Cancer Hospital Egypt 57357, 11441 Cairo, Egypt.,Department of Physiology, Faculty of Veterinary Medicine, Suez Canal University, 41522 Ismailia, Egypt
| | - Samar Mansour
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835 Cairo, Egypt.,Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, 11566 Al Obour, Egypt
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7
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Herrera-Alonso AE, Ibarra-Alonso MC, Esparza-González SC, Estrada-Flores S, García-Cerda LA, Martínez-Luévanos A. Biomimetic Growth of Hydroxyapatite on SiO 2 Microspheres to Improve Its Biocompatibility and Gentamicin Loading Capacity. MATERIALS 2021; 14:ma14226941. [PMID: 34832343 PMCID: PMC8621055 DOI: 10.3390/ma14226941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/07/2021] [Accepted: 11/10/2021] [Indexed: 11/16/2022]
Abstract
The interest in multifunctional biomaterials to be implanted are also able to release drugs that reduce pain and inflammation or prevent a possible infection has increased. Bioactive materials such as silica (SiO2) containing surface silanol groups contribute to the nucleation and growth of hydroxyapatite (HAp) in a physiological environment. Regarding biocompatibility, the spherical shape of particles is the desirable one, since it does not cause mechanical damage to the cell membrane. In this work, the synthesis of SiO2 microspheres was performed by the modified Stöber method and they were used for the biomimetic growth of HAp on their surface. The effect of the type of surfactant (sodium dodecyl sulphate (SDS), cetyltrimethylammonium bromide (CTAB), and polyethylene glycol (PEG)), and heat treatment on the morphology and size of SiO2 particles was investigated. Monodisperse, spherical-shaped SiO2 microparticles with an average particle size of 179 nm, were obtained when using PEG (SiO2-PEG). The biomimetic growth of HAp was performed on this sample to improve its biocompatibility and drug-loading capacity using gentamicin as a model drug. Biomimetic growth of HAp was confirmed by FTIR-ATR, SEM-EDX and TEM techniques. SiO2-PEG/HAp sample had a better biocompatibility in vitro and gentamicin loading capacity than SiO2-PEG sample.
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Affiliation(s)
- Alejandra E. Herrera-Alonso
- Department of Advanced Ceramic Materials and Energy, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Blvd. V. Carranza s/n, Saltillo 25280, Coahuila, Mexico; (A.E.H.-A.); (S.E.-F.)
| | - María C. Ibarra-Alonso
- School of Chemical Sciences, CONACYT-Universidad Autónoma de Coahuila, Blvd. V. Carranza s/n, Saltillo 25280, Coahuila, Mexico
- Correspondence: (M.C.I.-A.); (A.M.-L.)
| | | | - Sofía Estrada-Flores
- Department of Advanced Ceramic Materials and Energy, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Blvd. V. Carranza s/n, Saltillo 25280, Coahuila, Mexico; (A.E.H.-A.); (S.E.-F.)
| | - Luis A. García-Cerda
- Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna, Hermosillo 140, San José de los Cerritos, Saltillo 25294, Coahuila, Mexico;
| | - Antonia Martínez-Luévanos
- Department of Advanced Ceramic Materials and Energy, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Blvd. V. Carranza s/n, Saltillo 25280, Coahuila, Mexico; (A.E.H.-A.); (S.E.-F.)
- Correspondence: (M.C.I.-A.); (A.M.-L.)
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8
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Sierosławska A, Borówka A, Rymuszka A, Żukociński G, Sobczak K. Mesoporous silica nanoparticles containing copper or silver synthesized with a new metal source: Determination of their structure parameters and cytotoxic and irritating effects. Toxicol Appl Pharmacol 2021; 429:115685. [PMID: 34428444 DOI: 10.1016/j.taap.2021.115685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/06/2021] [Accepted: 08/15/2021] [Indexed: 11/17/2022]
Abstract
One of the potential implementation of mesoporous silica nanomaterials (MSNs) is their use in biomedical applications as adsorbents or carriers of various bioactive substances. In this study, we attempted to fabricate silica nanomaterials containing copper and silver that were introduced into the MSN matrix, for the first time using oxalate compounds as a metal source. The syntheses were carried out using hydrothermal and impregnation methods. Structure studies revealed that the obtained nanoparticles were of a spheroidal shape and most had diameters in the range 200-500 nm. Silver and copper were found to be grouped into clusters in most samples, except in copper-decorated MSNs prepared with the impregnation method, which had an even distribution of metal atoms throughout the volume of the granule. An evaluation of the cytotoxic and irritating effects revealed that the preferred candidates for potential future applications in medicine or cosmetology among materials obtained with the presented method are the copper-conjugated MSNs.
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Affiliation(s)
- Anna Sierosławska
- Department of Animal Physiology and Toxicology, Faculty of Science and Health, The John Paul II Catholic University of Lublin, 1I Konstantynów Str., 20-708 Lublin, Poland.
| | - Anna Borówka
- Department of Animal Physiology and Toxicology, Faculty of Science and Health, The John Paul II Catholic University of Lublin, 1I Konstantynów Str., 20-708 Lublin, Poland
| | - Anna Rymuszka
- Department of Animal Physiology and Toxicology, Faculty of Science and Health, The John Paul II Catholic University of Lublin, 1I Konstantynów Str., 20-708 Lublin, Poland
| | - Grzegorz Żukociński
- Centre for Interdisciplinary Research, The John Paul II Catholic University of Lublin, 1H Konstantynów Str., 20-708 Lublin, Poland
| | - Kamil Sobczak
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirki i Wigury 101, 02-089 Warsaw, Poland
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9
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Heidari R, Khosravian P, Mirzaei SA, Elahian F. siRNA delivery using intelligent chitosan-capped mesoporous silica nanoparticles for overcoming multidrug resistance in malignant carcinoma cells. Sci Rep 2021; 11:20531. [PMID: 34654836 PMCID: PMC8519957 DOI: 10.1038/s41598-021-00085-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 10/06/2021] [Indexed: 12/12/2022] Open
Abstract
Although siRNA is a promising technology for cancer gene therapy, effective cytoplasmic delivery has remained a significant challenge. In this paper, a potent siRNA transfer system with active targeting moieties toward cancer cells and a high loading capacity is introduced to inhibit drug resistance. Mesoporous silica nanoparticles are of great potential for developing targeted gene delivery. Amino-modified MSNs (NH2-MSNs) were synthesized using a modified sol–gel method and characterized by FTIR, BET, TEM, SEM, X-ray diffraction, DLS, and 1H-NMR. MDR1-siRNA was loaded within NH2-MSNs, and the resulting negative surface was capped by functionalized chitosan as a protective layer. Targeting moieties such as TAT and folate were anchored to chitosan via PEG-spacers. The loading capacity of siRNA and the protective effect of chitosan for siRNA were determined by gel retardation assay. MTT assay, flow cytometry, real-time PCR, and western blot were performed to study the cytotoxicity, cellular uptake assay, targeting evaluation, and MDR1 knockdown efficiency. The synthesized NH2-MSNs had a particle size of ≈ 100 nm and pore size of ≈ 5 nm. siRNA was loaded into NH2-MSNs with a high loading capacity of 20% w/w. Chitosan coating on the surface of siRNA-NH2-MSNs significantly improved the siRNA protection against enzyme activity compared to naked siRNA-NH2-MSNs. MSNs and modified MSNs did not exhibit significant cytotoxicity at therapeutic concentrations in the EPG85.257-RDB and HeLa-RDB lines. The folate-conjugated nanoparticles showed a cellular uptake of around two times higher in folate receptor-rich HeLa-RDB than EPG85.257-RDB cells. The chitosan-coated siRNA-NH2-MSNs produced decreased MDR1 transcript and protein levels in HeLa-RDB by 0.20 and 0.48-fold, respectively. The results demonstrated that functionalized chitosan-coated siRNA-MSNs could be a promising carrier for targeted cancer therapy. Folate-targeted nanoparticles were specifically harvested by folate receptor-rich HeLa-RDB and produced a chemosensitized phenotype of the multidrug-resistant cancer cells.
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Affiliation(s)
- Razieh Heidari
- Department of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Pegah Khosravian
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Seyed Abbas Mirzaei
- Department of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran.,Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Fatemeh Elahian
- Department of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran. .,Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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10
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McGinnity TL, Sokolova V, Prymak O, Nallathamby PD, Epple M, Roeder RK. Colloidal stability, cytotoxicity, and cellular uptake of HfO 2 nanoparticles. J Biomed Mater Res B Appl Biomater 2021; 109:1407-1417. [PMID: 33474824 DOI: 10.1002/jbm.b.34800] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/16/2020] [Accepted: 01/09/2021] [Indexed: 12/23/2022]
Abstract
The colloidal stability, cytotoxicity, and cellular uptake of hafnium oxide (HfO2 ) nanoparticles (NPs) were investigated in vitro to assess safety and efficacy for use as a deliverable theranostic in nanomedicine. Monoclinic HfO2 NPs, ~60-90 nm in diameter and ellipsoidal in shape, were directly prepared without calcination by a hydrothermal synthesis at 83% yield. The as-prepared, bare HfO2 NPs exhibited colloidal stability in cell culture media for at least 10 days without significant agglomeration or settling. The viability (live/dead assay) of human epithelial cells (HeLa) and monocyte-derived macrophages (THP-1) did not fall below 95% of untreated cells after up to 24 h exposure to HfO2 NPs at concentrations up to 0.80 mg/ml. Similarly, the mitochondrial activity (MTT assay) of HeLa and THP-1 cells did not fall below 80% of untreated cells after up to 24 h exposure to HfO2 NPs at concentrations up to 0.40 mg/ml. Cellular uptake was confirmed and visualized in both HeLa and THP-1 cells by fluorescence microscopy of HfO2 NPs labeled with Cy5 and transmission electron microscopy (TEM) of bare HfO2 NPs. TEM micrographs provided direct observation of macropinocytosis and endosomal compartmentalization within 4 h of exposure. Thus, the HfO2 NPs in this study exhibited colloidal stability, cytocompatibility, and cellular uptake for potential use as a deliverable theranostic in nanomedicine.
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Affiliation(s)
- Tracie L McGinnity
- Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame, Notre Dame, Indiana, USA.,Harper Cancer Research Institute, University of Notre Dame, Notre Dame, Indiana, USA
| | - Viktoriya Sokolova
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Oleg Prymak
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Prakash D Nallathamby
- Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame, Notre Dame, Indiana, USA.,Harper Cancer Research Institute, University of Notre Dame, Notre Dame, Indiana, USA
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Essen, Germany
| | - Ryan K Roeder
- Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame, Notre Dame, Indiana, USA.,Harper Cancer Research Institute, University of Notre Dame, Notre Dame, Indiana, USA
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11
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Déciga-Alcaraz A, Medina-Reyes EI, Delgado-Buenrostro NL, Rodríguez-Ibarra C, Ganem-Rondero A, Vázquez-Zapién GJ, Mata-Miranda MM, Limón-Pacheco JH, García-Cuéllar CM, Sánchez-Pérez Y, Chirino YI. Toxicity of engineered nanomaterials with different physicochemical properties and the role of protein corona on cellular uptake and intrinsic ROS production. Toxicology 2020; 442:152545. [PMID: 32755642 DOI: 10.1016/j.tox.2020.152545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/15/2020] [Accepted: 07/27/2020] [Indexed: 11/25/2022]
Abstract
The Organisation for Economic Co-operation and Development has listed thirteen engineered nanomaterials (ENM) in order to investigate their toxicity on human health. Silicon dioxide (SiO2) and titanium dioxide (TiO2) are included on that list and we added indium tin oxide (ITO) nanoparticles (NPs) to our study, which is not listed on OECD suggested ENM to be investigated, however ITO NPs has a high potential of industrial production. We evaluate the physicochemical properties of SiO2 NPs (10-20 nm), TiO2 nanofibers (NFs; 3 μm length) and ITO NPs (<50 nm) and the impact of protein-corona formation on cell internalization. Then, we evaluated the toxicity of uncoated ENM on human lung epithelial cells exposed to 10 and 50 μg/cm2 for 24 h. TiO2 NFs showed the highest capability to adsorb proteins onto the particle surface followed by SiO2 NPs and ITO NPs after acellular incubation with fetal bovine serum. The protein adsorption had no impact on Alizarin Red S conjugation, intrinsic properties for reactive oxygen (ROS) formation or cell uptake for all types of ENM. Moreover, TiO2 NFs induced highest cell alterations in human lung epithelial cells exposed to 10 and 50 μg/cm2 while ITO NPs induced moderated cytotoxicity and SiO2 NPs caused even lower cytotoxicity under the same conditions. DNA, proteins and lipids were mainly affected by TiO2 NFs followed by SiO2 NPs with toxic effects in protein and lipids while limited variations were detected after exposure to ITO NPs on spectra analyzed by Fourier Transform Infrared Spectroscopy.
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Affiliation(s)
- Alejandro Déciga-Alcaraz
- Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México. Av. de los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla de Baz, CP 54090, Estado de Mexico, Mexico
| | - Estefany I Medina-Reyes
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de Mexico, CDMX, 04510, Programa de becas posdoctorales en la UNAM, DGAPA, Mexico
| | - Norma L Delgado-Buenrostro
- Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México. Av. de los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla de Baz, CP 54090, Estado de Mexico, Mexico
| | - Carolina Rodríguez-Ibarra
- Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México. Av. de los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla de Baz, CP 54090, Estado de Mexico, Mexico
| | - Adriana Ganem-Rondero
- División de Estudios de Posgrado (Tecnología Farmacéutica), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de Mexico, Av. 1° de Mayo s/n, Cuautitlán Izcalli, CP 54740, Estado de Mexico, Mexico
| | - Gustavo J Vázquez-Zapién
- Laboratorio de Embriología, Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Cerrada de Palomas S/N, Lomas de San Isidro, Alcaldía Miguel Hidalgo, C.P. 11200, Ciudad de Mexico, Mexico
| | - Mónica M Mata-Miranda
- Laboratorio de Biología Celular y Tisular, Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Cerrada de Palomas S/N, Lomas de San Isidro, Alcaldía Miguel Hidalgo, C.P. 11200, Ciudad de Mexico, Mexico
| | - Jorge H Limón-Pacheco
- Laboratorio de Biología Celular y Tisular, Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaría de la Defensa Nacional, Cerrada de Palomas S/N, Lomas de San Isidro, Alcaldía Miguel Hidalgo, C.P. 11200, Ciudad de Mexico, Mexico
| | - Claudia M García-Cuéllar
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología, San Fernando No. 22, Tlalpan, CP 14080, Ciudad de Mexico, Mexico
| | - Yesennia Sánchez-Pérez
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología, San Fernando No. 22, Tlalpan, CP 14080, Ciudad de Mexico, Mexico
| | - Yolanda I Chirino
- Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México. Av. de los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla de Baz, CP 54090, Estado de Mexico, Mexico.
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12
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Astrocytes Are More Vulnerable than Neurons to Silicon Dioxide Nanoparticle Toxicity in Vitro. TOXICS 2020; 8:toxics8030051. [PMID: 32751182 PMCID: PMC7560395 DOI: 10.3390/toxics8030051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 11/29/2022]
Abstract
Some studies have shown that silicon dioxide nanoparticles (SiO2-NPs) can reach different regions of the brain and cause toxicity; however, the consequences of SiO2-NPs exposure on the diverse brain cell lineages is limited. We aimed to investigate the neurotoxic effects of SiO2-NP (0–100 µg/mL) on rat astrocyte-rich cultures or neuron-rich cultures using scanning electron microscopy, Attenuated Total Reflection-Fourier Transform Infrared spectroscopy (ATR-FTIR), FTIR microspectroscopy mapping (IQ mapping), and cell viability tests. SiO2-NPs were amorphous particles and aggregated in saline and culture media. Both astrocytes and neurons treated with SiO2-NPs showed alterations in cell morphology and changes in the IR spectral regions corresponding to nucleic acids, proteins, and lipids. The analysis by the second derivative revealed a significant decrease in the signal of the amide I (α-helix, parallel β-strand, and random coil) at the concentration of 10 µg/mL in astrocytes but not in neurons. IQ mapping confirmed changes in nucleic acids, proteins, and lipids in astrocytes; cell death was higher in astrocytes than in neurons (10–100 µg/mL). We conclude that astrocytes were more vulnerable than neurons to SiO2-NPs toxicity. Therefore, the evaluation of human exposure to SiO2-NPs and possible neurotoxic effects must be followed up.
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Tian Q, Cai Y, Li N, Liu Q, Gu B, Chen ZG, Song S. Ellagic acid-Fe nanoscale coordination polymer with higher longitudinal relaxivity for dual-modality T 1-weighted magnetic resonance and photoacoustic tumor imaging. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 28:102219. [PMID: 32474078 DOI: 10.1016/j.nano.2020.102219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/14/2020] [Accepted: 04/30/2020] [Indexed: 11/16/2022]
Abstract
Dual-modality contrast agents for T1-weighted magnetic resonance imaging (MRI) and photoacoustic imaging have attracted substantial attention as they combine the advantages of unlimited penetration depth and high sensitivity. However, most of the reported agents are Gd-based materials that exhibit nephrotoxicity, and few studies have focused on Fe-based materials owing to their lower relaxivity. This work describes the development of an ellagic acid (EA)-Fe nanoscale coordination polymer with high longitudinal relaxivity and strong near-infrared absorption for dual-modality T1-weighted MRI and photoacoustic imaging. The longitudinal relaxivity (r1) of the prepared EA-Fe@BSA nanoparticles was 2.54 mM-1 s-1, an increase of 185% compared with previously reported gallic acid-Fe nanoparticles. Furthermore, in vitro and in vivo experiments demonstrate that the EA-Fe@BSA NPs are an excellent T1-weighted MRI and photoacoustic dual-modality contrast agent with the advantages of convenient synthesis and low toxicity, exhibiting great potential for clinical use in tumor imaging.
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Affiliation(s)
- Qiwei Tian
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China
| | - Yu Cai
- College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, China
| | - Nan Li
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China
| | - Qiufang Liu
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China
| | - Bingxin Gu
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China
| | - Zhi-Gang Chen
- School of Mechanical & Mining Engineering, University of Queensland, Brisbane, Australia.
| | - Shaoli Song
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Center for Biomedical Imaging, Fudan University, Shanghai, China; Shanghai Engineering Research Center of Molecular Imaging Probes, Shanghai, China.
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Dutz S, Buske N, Landers J, Gräfe C, Wende H, Clement JH. Biocompatible Magnetic Fluids of Co-Doped Iron Oxide Nanoparticles with Tunable Magnetic Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1019. [PMID: 32471031 PMCID: PMC7352500 DOI: 10.3390/nano10061019] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 01/03/2023]
Abstract
Magnetite (Fe3O4) particles with a diameter around 10 nm have a very low coercivity (Hc) and relative remnant magnetization (Mr/Ms), which is unfavorable for magnetic fluid hyperthermia. In contrast, cobalt ferrite (CoFe2O4) particles of the same size have a very high Hc and Mr/Ms, which is magnetically too hard to obtain suitable specific heating power (SHP) in hyperthermia. For the optimization of the magnetic properties, the Fe2+ ions of magnetite were substituted by Co2+ step by step, which results in a Co doped iron oxide inverse spinel with an adjustable Fe2+ substitution degree in the full range of pure iron oxide up to pure cobalt ferrite. The obtained magnetic nanoparticles were characterized regarding their structural and magnetic properties as well as their cell toxicity. The pure iron oxide particles showed an average size of 8 nm, which increased up to 12 nm for the cobalt ferrite. For ferrofluids containing the prepared particles, only a limited dependence of Hc and Mr/Ms on the Co content in the particles was found, which confirms a stable dispersion of the particles within the ferrofluid. For dry particles, a strong correlation between the Co content and the resulting Hc and Mr/Ms was detected. For small substitution degrees, only a slight increase in Hc was found for the increasing Co content, whereas for a substitution of more than 10% of the Fe atoms by Co, a strong linear increase in Hc and Mr/Ms was obtained. Mössbauer spectroscopy revealed predominantly Fe3+ in all samples, while also verifying an ordered magnetic structure with a low to moderate surface spin canting. Relative spectral areas of Mössbauer subspectra indicated a mainly random distribution of Co2+ ions rather than the more pronounced octahedral site-preference of bulk CoFe2O4. Cell vitality studies confirmed no increased toxicity of the Co-doped iron oxide nanoparticles compared to the pure iron oxide ones. Magnetic heating performance was confirmed to be a function of coercivity as well. The here presented non-toxic magnetic nanoparticle system enables the tuning of the magnetic properties of the particles without a remarkable change in particles size. The found heating performance is suitable for magnetic hyperthermia application.
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Affiliation(s)
- Silvio Dutz
- Institute of Biomedical Engineering and Informatics (BMTI), Technische Universität Ilmenau, D-98693 Ilmenau, Germany
- Department of Nano Biophotonics, Leibniz Institute of Photonic Technology (IPHT), D-07745 Jena, Germany
| | - Norbert Buske
- MagneticFluids, Köpenicker Landstraße 203, D-12437 Berlin, Germany;
| | - Joachim Landers
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, D-47057 Duisburg, Germany; (J.L.); (H.W.)
| | - Christine Gräfe
- Department Hematology and Oncology, Jena University Hospital, D-07747 Jena, Germany; (C.G.); (J.H.C.)
| | - Heiko Wende
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, D-47057 Duisburg, Germany; (J.L.); (H.W.)
| | - Joachim H. Clement
- Department Hematology and Oncology, Jena University Hospital, D-07747 Jena, Germany; (C.G.); (J.H.C.)
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Nguyen CH, Zeng C, Boitano S, Field JA, Sierra-Alvarez R. Cytotoxicity Assessment of Gallium- and Indium-Based Nanoparticles Toward Human Bronchial Epithelial Cells Using an Impedance-Based Real-Time Cell Analyzer. Int J Toxicol 2020; 39:218-231. [PMID: 32228215 DOI: 10.1177/1091581820914255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The semiconductor manufacturing sector plans to introduce III/V film structures (eg, gallium arsenide (GaAs), indium arsenide (InAs) onto silicon wafers due to their high electron mobility and low power consumption. Aqueous solutions generated during chemical and mechanical planarization of silicon wafers can contain a mixture of metal oxide nanoparticles (NPs) and soluble indium, gallium, and arsenic. In this work, the cytotoxicity induced by Ga- and In-based NPs (GaAs, InAs, Ga2O3, In2O3) and soluble III-V salts on human bronchial epithelial cells (16HBE14o-) was evaluated using a cell impedance real-time cell analysis (RTCA) system. The RTCA system provided inhibition data at different concentrations for multiple time points, for example, GaAs (25 mg/L) caused 60% inhibition after 8 hours of exposure and 100% growth inhibition after 24 hours. Direct testing of As(III) and As(V) demonstrated significant cytotoxicity with 50% growth inhibition concentrations after 16-hour exposure (IC50) of 2.4 and 4.5 mg/L, respectively. Cell signaling with rapid rise and decrease in signal was unique to arsenic cytotoxicity, a precursor of strong cytotoxicity over the longer term. In contrast with arsenic, soluble gallium(III) and indium(III) were less toxic. Whereas the oxide NPs caused low cytotoxicity, the arsenide compounds were highly inhibitory (IC50 of GaAs and InAs = 6.2 and 68 mg/L, respectively). Dissolution experiments over 7 days revealed that arsenic was fully leached from GaAs NPs, whereas only 10% of the arsenic was leached out of InAs NPs. These results indicate that the cytotoxicity of GaAs and InAs NPs is largely due to the dissolution of toxic arsenic species.
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Affiliation(s)
- Chi H Nguyen
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, USA
| | - Chao Zeng
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, USA
| | - Scott Boitano
- Department of Physiology and The Asthma and Airway Disease Research Center, University of Arizona, Tucson, AZ, USA
| | - Jim A Field
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, USA
| | - Reyes Sierra-Alvarez
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, USA
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De Simone U, Spinillo A, Caloni F, Avanzini MA, Coccini T. In vitro evaluation of magnetite nanoparticles in human mesenchymal stem cells: comparison of different cytotoxicity assays. Toxicol Mech Methods 2019; 30:48-59. [PMID: 31364912 DOI: 10.1080/15376516.2019.1650151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
This work was aimed at defining the suitable test for evaluating Fe3O4 NPs cytotoxicity after short-term exposure in human mesenchymal stem cells (hMSCs) using different viability tests, namely NRU, MTT and TB assays, paralleled by cell morphology analyses for cross checking. MTT and NRU data (culture medium with/without hMSCs plus Fe3O4NPs) indicated artificial/false increments in cell viability after Fe3O4NPs. These observations did not fit with the morphological analyses showing reduced cell density, loss of monolayer features, and morphological alterations at Fe3O4NPs ≥50 μg/ml. Fe3O4NPs alone induced a substantial increased absorbance at the wavelength required for MTT and NRU. A significant death (25%) of hMSC at Fe3O4NPs ≥10 μg/ml, with a maximum effect (45%) at 300 μg/ml after 24 h, exacerbated after 48 h, was observed when applying TB test. These results paralleled the effects on cell morphology. The optical properties and stability of Fe3O4NP suspension (tendency to agglomerate in a specific culture medium) represent factors that limit in vitro result interpretation. These findings suggest the non applicability of the spectrophotometric assays for hMSC culture conditions, while TB is an accurate method for determining cell viability after Fe3O4NP exposure in this model. In relation to NPs safety assessment: cell-based assays must be considered on case-by-case basis; selection of relevant cell models is also important for predictive toxicological studies; application of a testing strategy is fundamental for understanding the toxicity pathways driving cellular responses.
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Affiliation(s)
- Uliana De Simone
- Laboratory of Clinical and Experimental Toxicology, Toxicology Unit, ICS Maugeri SpA-SB, IRCCS, Pavia, Italy
| | - Arsenio Spinillo
- Department of Obstetrics and Gynecology, Fondazione IRCCS Policlinico San Matteo and University of Pavia, Pavia, Italy
| | - Francesca Caloni
- Department of Veterinary Medicine (DIMEVET), Università degli Studi di Milano, Milano, Italy
| | - Maria Antonietta Avanzini
- Laboratory of Transplant Immunology/Cell Factory, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Teresa Coccini
- Laboratory of Clinical and Experimental Toxicology, Toxicology Unit, ICS Maugeri SpA-SB, IRCCS, Pavia, Italy
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Wiedmer L, Ducray AD, Frenz M, Stoffel MH, Widmer HR, Mevissen M. Silica nanoparticle-exposure during neuronal differentiation modulates dopaminergic and cholinergic phenotypes in SH-SY5Y cells. J Nanobiotechnology 2019; 17:46. [PMID: 30935413 PMCID: PMC6442417 DOI: 10.1186/s12951-019-0482-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 03/23/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Silica-ε-polycaprolactone-nanoparticles (SiPCL-NPs) represent a promising tool for laser-tissue soldering in the brain. After release of the SiPCL-NPs in the brain, neuronal differentiation might be modulated. The present study was performed to determine effects of SiPCL-NP-exposure at different stages of neuronal differentiation in neuron-like SH-SY5Y cells. The resulting phenotypes were analyzed quantitatively and signaling pathways involved in neuronal differentiation and degeneration were studied. SH-SY5Y cells were differentiated with all-trans retinoic acid or staurosporine to obtain predominantly cholinergic or dopaminergic neurons. The resulting phenotype was analyzed at the end of differentiation with and without the SiPCL-NPs given at various times during differentiation. RESULTS Exposure to SiPCL-NPs before and during differentiation led to a decreased cell viability of SH-SY5Y cells depending on the differentiation protocol used. SiPCL-NPs co-localized with the neuronal marker β-3-tubulin but did not alter the morphology of these cells. A significant decrease in the number of tyrosine hydroxylase (TH) immunoreactive neurons was found in staurosporine-differentiated cells when SiPCL-NPs were added at the end of the differentiation. TH-protein expression was also significantly downregulated when SiPCL-NPs were applied in the middle of differentiation. Protein expression of the marker for the dopamine active transporter (DAT) was not affected by SiPCL-NPs. SiPCL-NP-exposure predominantly decreased the expression of the high-affinity choline transporter 1 (CHT1) when the NPs were given before the differentiation. Pathways involved in neuronal differentiation, namely Akt, MAP-K, MAP-2 and the neurodegeneration-related markers β-catenin and GSK-3β were not altered by NP-exposure. CONCLUSIONS The decrease in the number of dopaminergic and cholinergic cells may implicate neuronal dysfunction, but the data do not provide evidence that pathways relevant for differentiation and related to neurodegeneration are impaired.
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Affiliation(s)
- Linda Wiedmer
- Division of Veterinary Pharmacology and Toxicology, Vetsuisse Faculty, University of Bern, Laenggassstrasse 124, 3012 Bern, Switzerland
| | - Angélique D. Ducray
- Division of Veterinary Pharmacology and Toxicology, Vetsuisse Faculty, University of Bern, Laenggassstrasse 124, 3012 Bern, Switzerland
| | - Martin Frenz
- Institute of Applied Physics, University of Bern, Bern, Switzerland
| | - Michael H. Stoffel
- Division of Veterinary Anatomy, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Hans-Rudolf Widmer
- Department of Neurosurgery, Research Unit, Inselspital, University of Bern, Bern, Switzerland
| | - Meike Mevissen
- Division of Veterinary Pharmacology and Toxicology, Vetsuisse Faculty, University of Bern, Laenggassstrasse 124, 3012 Bern, Switzerland
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18
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Wang C, Han M, Liu X, Chen S, Hu F, Sun J, Yuan H. Mitoxantrone-preloaded water-responsive phospholipid-amorphous calcium carbonate hybrid nanoparticles for targeted and effective cancer therapy. Int J Nanomedicine 2019; 14:1503-1517. [PMID: 30880961 PMCID: PMC6396884 DOI: 10.2147/ijn.s193976] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The application of mitoxantrone (MIT) in cancer therapy has been severely limited by its inherent drawbacks. In addition, effective cancer therapy calls for drug release systems capable of enforcing drug release within cancer cells in response to infinite stimulant with enhanced drug penetration capability. METHODS MIT-preloaded phospholipid-amorphous calcium carbonate hybrid nanoparticles (PL/ACC-MIT) that surface modified with PL shell (containing shielding polymer polyethylene glycol and targeting moiety folic acid) were prepared by a facile solvent-diffusion method. RESULTS It has been proven that the resulting PL/ACC-MIT nanoparticles demonstrated satisfactory stability against various aqueous environments with minimal drug leakage and exerted strong targeting capability but selective preference to the folate receptor-overexpressing cell line. In contrast, once exposed to the enzyme-abundant and acidic environments of cancer cells, the PL/ACC-MIT nanoparticles can readily decompose to facilitate quick drug release and enhanced drug penetration to yield preferable antitumor effect both in vitro and in vivo. CONCLUSION In this study, MIT-preloaded water-responsive hybrid nanoparticles with increased stability, targetability, controlled drug release, and enhanced drug penetration were successfully developed, which might be a candidate for targeted and effective cancer therapy.
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Affiliation(s)
- Cheng Wang
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China,
| | - Min Han
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China,
- Hangzhou Zhongmei Huadong Pharmaceutical Co, Ltd, Hangzhou 310011, China
| | - Xuerong Liu
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China,
| | - Shaoqing Chen
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China,
| | - Fuqiang Hu
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China,
| | - Jihong Sun
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China,
| | - Hong Yuan
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China,
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Carroll LM, Wiedmann M, Mukherjee M, Nicholas DC, Mingle LA, Dumas NB, Cole JA, Kovac J. Characterization of Emetic and Diarrheal Bacillus cereus Strains From a 2016 Foodborne Outbreak Using Whole-Genome Sequencing: Addressing the Microbiological, Epidemiological, and Bioinformatic Challenges. Front Microbiol 2019; 10:144. [PMID: 30809204 PMCID: PMC6379260 DOI: 10.3389/fmicb.2019.00144] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 01/21/2019] [Indexed: 12/21/2022] Open
Abstract
The Bacillus cereus group comprises multiple species capable of causing emetic or diarrheal foodborne illness. Despite being responsible for tens of thousands of illnesses each year in the U.S. alone, whole-genome sequencing (WGS) is not yet routinely employed to characterize B. cereus group isolates from foodborne outbreaks. Here, we describe the first WGS-based characterization of isolates linked to an outbreak caused by members of the B. cereus group. In conjunction with a 2016 outbreak traced to a supplier of refried beans served by a fast food restaurant chain in upstate New York, a total of 33 B. cereus group isolates were obtained from human cases (n = 7) and food samples (n = 26). Emetic (n = 30) and diarrheal (n = 3) isolates were most closely related to B. paranthracis (group III) and B. cereus sensu stricto (group IV), respectively. WGS indicated that the 30 emetic isolates (24 and 6 from food and humans, respectively) were closely related and formed a well-supported clade distinct from publicly available emetic group III genomes with an identical sequence type (ST 26). The 30 emetic group III isolates from this outbreak differed from each other by a mean of 8.3 to 11.9 core single nucleotide polymorphisms (SNPs), while differing from publicly available emetic group III ST 26 B. cereus group genomes by a mean of 301.7-528.0 core SNPs, depending on the SNP calling methodology used. Using a WST-1 cell proliferation assay, the strains isolated from this outbreak had only mild detrimental effects on HeLa cell metabolic activity compared to reference diarrheal strain B. cereus ATCC 14579. We hypothesize that the outbreak was a single source outbreak caused by emetic group III B. cereus belonging to the B. paranthracis species, although food samples were not tested for presence of the emetic toxin cereulide. In addition to showcasing how WGS can be used to characterize B. cereus group strains linked to a foodborne outbreak, we also discuss potential microbiological and epidemiological challenges presented by B. cereus group outbreaks, and we offer recommendations for analyzing WGS data from the isolates associated with them.
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Affiliation(s)
- Laura M. Carroll
- Department of Food Science, Cornell University, Ithaca, NY, United States
| | - Martin Wiedmann
- Department of Food Science, Cornell University, Ithaca, NY, United States
| | - Manjari Mukherjee
- Department of Food Science, The Pennsylvania State University, University Park, PA, United States
| | - David C. Nicholas
- New York State Department of Health, Corning Tower, Empire State Plaza, Albany, NY, United States
| | - Lisa A. Mingle
- New York State Department of Health, Wadsworth Center, Albany, NY, United States
| | - Nellie B. Dumas
- New York State Department of Health, Wadsworth Center, Albany, NY, United States
| | - Jocelyn A. Cole
- New York State Department of Health, Wadsworth Center, Albany, NY, United States
| | - Jasna Kovac
- Department of Food Science, The Pennsylvania State University, University Park, PA, United States
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20
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Mubin N, Umar MS, Zubair S, Owais M. Selective Targeting of 4SO 4- N-Acetyl-Galactosamine Functionalized Mycobacterium tuberculosis Protein Loaded Chitosan Nanoparticle to Macrophages: Correlation With Activation of Immune System. Front Microbiol 2018; 9:2469. [PMID: 30515134 PMCID: PMC6255963 DOI: 10.3389/fmicb.2018.02469] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 09/26/2018] [Indexed: 12/30/2022] Open
Abstract
In the present study, we investigated potential of chitosan-based nanoparticles (CNPs) to deliver loaded therapeutic molecules to pathogen harboring macrophages. We fabricated stable CNPs employing ionic cross-linking method and evaluated their potential to target RAW 264.7 cells. The physicochemical characterization of as-synthesized CNPs was determined using electron microscopy, infrared microscopy and zeta potential measurement. Next, cellular uptake and intracellular localization studies of CNPs were followed in living RAW264.7 cells using confocal microscopy. We found that both Acr-1 loaded (CNP-A) and 4-SO4-GalNAc ligand harboring (CNP-L) chitosan nanoparticle experience increased cellular uptake by Mycobacterium smegmatis infected RAW cells. Following cellular digestion in model macrophage cell line (RAW), CNPs provide an increased immune response. Further, 4-SO4-GalNAc bearing CNP-L exhibits high binding affinity as well as antibacterial efficacy toward M. smegmatis. The data of the present study suggest that CNP-based nanoparticle offer a promising delivery strategy to target infected macrophages for prevention and eradication of intracellular pathogens such as M. smegmatis.
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Affiliation(s)
- Nida Mubin
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Mohd Saad Umar
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Swaleha Zubair
- Department of Computer Science, Aligarh Muslim University, Aligarh, India
| | - Mohammad Owais
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
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21
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Adamson SXF, Wang R, Wu W, Cooper B, Shannahan J. Metabolomic insights of macrophage responses to graphene nanoplatelets: Role of scavenger receptor CD36. PLoS One 2018; 13:e0207042. [PMID: 30403754 PMCID: PMC6221354 DOI: 10.1371/journal.pone.0207042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 10/23/2018] [Indexed: 12/12/2022] Open
Abstract
Graphene nanoplatelets (GNPs) are novel two-dimensional engineered nanomaterials consisting of planar stacks of graphene. Although human exposures are increasing, our knowledge is lacking regarding immune-specific responses to GNPs and mechanisms of interactions. Our current study utilizes a metabolite profiling approach to evaluate macrophage responses to GNPs. Furthermore, we assessed the role of the scavenger receptor CD36 in mediating these GNP-induced responses. GNPs were purchased with dimensions of 2 μm × 2 μm × 12 nm. Macrophages were exposed to GNPs at different concentrations of 0, 25, 50, or 100 μg/ml for 1, 3, or 6 h. Following exposure, no cytotoxicity was observed, while GNPs readily associated with macrophages in a concentration-dependent manner. After the 1h-pretreatment of either a CD36 competitive ligand sulfo-N-succinimidyl oleate (SSO) or a CD36 specific antibody, the cellular association of GNPs by macrophages was significantly reduced. GNP exposure was determined to alter mitochondrial membrane potential while the pretreatment with a CD36 antibody inhibited these changes. In a separate exposure, macrophages were exposed to GNPs at concentrations of 0, 50, or 100 μg/mL for 1 or 3h or 100 μM SSO (a CD36 specific ligand) for 1h and collected for metabolite profiling. Principal component analysis of identified compounds determined differential grouping based on exposure conditions. The number of compounds changed following exposure was determined to be both concentration- and time-dependent. Identified metabolites were determined to relate to several metabolism pathways such as glutathione metabolism, Pantothenate and CoA biosynthesis, Sphingolipid metabolism, Purine metabolism, arachidonic acid metabolism and others. Lastly, a number of metabolites were found in common between cells exposed to the CD36 receptor ligand, SSO, and GNPs suggesting both CD36-dependent and independent responses to GNP exposure. Together our data demonstrates GNP-macrophage interactions, the role of CD36 in the cellular response, and metabolic pathways disrupted due to exposure.
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Affiliation(s)
| | - Ruoxing Wang
- School of Industrial Engineering, Purdue University, West Lafayette, IN, United States of America
| | - Wenzhuo Wu
- School of Industrial Engineering, Purdue University, West Lafayette, IN, United States of America
| | - Bruce Cooper
- Metabolite Profiling Facility in Bindley Biosciences Center, Discovery Park, Purdue University, West Lafayette, IN, United States of America
| | - Jonathan Shannahan
- School of Health Sciences, Purdue University, West Lafayette, IN, United States of America
- * E-mail:
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22
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Llinàs MC, Martínez-Edo G, Cascante A, Porcar I, Borrós S, Sánchez-García D. Preparation of a mesoporous silica-based nano-vehicle for dual DOX/CPT pH-triggered delivery. Drug Deliv 2018; 25:1137-1146. [PMID: 29779394 PMCID: PMC6058477 DOI: 10.1080/10717544.2018.1472678] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 04/24/2018] [Accepted: 05/01/2018] [Indexed: 12/04/2022] Open
Abstract
A dual doxorubicin/camptothecin (DOX/CPT) pH-triggered drug delivery mesoporous silica nanoparticle (MSN)-based nano-vehicle has been prepared. In this drug-delivery system (DDS), CPT is loaded inside the pores of the MSNs, while DOX is covalently attached to the surface of an aldehyde-functionalized MSN through a dihydrazide-polyethylene glycol chain. Thus, DOX and the linker act as pH-sensitive gatekeeper. The system is versatile and easy to assemble, not requiring the chemical modification of the drugs. While at physiological conditions the release of the drugs is negligible, at acidic pH a burst release of DOX and a gradual release of CPT take place. In vitro cytotoxicity tests have demonstrated that this DDS can deliver efficiently DOX and CPT for combination therapy.
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Affiliation(s)
- Maria C Llinàs
- a Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià , Universitat Ramon Llull , Barcelona , Spain
| | - Gabriel Martínez-Edo
- a Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià , Universitat Ramon Llull , Barcelona , Spain
| | - Anna Cascante
- a Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià , Universitat Ramon Llull , Barcelona , Spain
| | - Irene Porcar
- a Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià , Universitat Ramon Llull , Barcelona , Spain
| | - Salvador Borrós
- a Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià , Universitat Ramon Llull , Barcelona , Spain
- b Centro de Investigación Biomédica en Red en Bioingeniería , Biomateriales y Nanomedicina (CIBER-BBN) , Zaragoza , Spain
| | - David Sánchez-García
- a Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià , Universitat Ramon Llull , Barcelona , Spain
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23
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Abstract
Haemozoin is a by-product of haemoglobin digestion by intraerythrocytic malaria parasites, which induces immunologic responses on different tissues, including endothelial cells. In the present paper, the incubation of human microvascular endothelial cells with haemozoin significantly inhibited MTT reduction, a measure of cytotoxicity, without increasing the release of cytoplasmic lactate dehydrogenase. Moreover, haemozoin did not induce apoptosis or cell cycle arrest nor decreased the number of live cells, suggesting that cells viability itself was not affected and that the inhibition of MTT reduction was only apparent and probably due to accelerated MTT-formazan exocytosis. After 30 min of MTT addition, a significant increase in the % of cells exocytosing MTT formazan crystals was observed in haemozoin-treated cells compared with control cells. Such an effect was partially reversed by the addition of genistein, an inhibitor of MTT-formazan exocytosis. The rapid release of CXCL-8, a preformed chemokine contained in Weibel-Palade bodies, confirmed that haemozoin induces a perturbation of the intracellular endothelial trafficking, including the exocytosis of MTT-formazan containing vesicles. The haem moiety of haemozoin is responsible for the observed effect. Moreover, this work underlines that MTT assay should not be used to measure cytotoxicity induced by haemozoin and other methods should be preferred.
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24
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Zeng C, Nguyen C, Boitano S, Field JA, Shadman F, Sierra-Alvarez R. Cerium dioxide (CeO 2) nanoparticles decrease arsenite (As(III)) cytotoxicity to 16HBE14o- human bronchial epithelial cells. ENVIRONMENTAL RESEARCH 2018; 164:452-458. [PMID: 29574255 PMCID: PMC6240918 DOI: 10.1016/j.envres.2018.03.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 02/24/2018] [Accepted: 03/05/2018] [Indexed: 06/08/2023]
Abstract
The production and application of engineered nanoparticles (NPs) are increasing in demand with the rapid development of nanotechnology. However, there are concerns that some of these novel materials could lead to emerging environmental and health problems. Some NPs are able to facilitate the transport of contaminants into cells/organisms via a "Trojan Horse" effect which enhances the toxicity of the adsorbed materials. In this work, we evaluated the toxicity of arsenite (As(III)) adsorbed onto cerium dioxide (CeO2) NPs to human bronchial epithelial cells (16HBE14o-) using the xCELLigence real time cell analyzing system (RTCA). Application of 0.5 mg/L As(III) resulted in 81.3% reduction of cell index (CI, an RTCA measure of cell toxicity) over 48 h when compared to control cells exposed to medium lacking As(III). However, when the cells were exposed to 0.5 mg/L As(III) in the presence of CeO2 NPs (250 mg/L), the CI was only reduced by 12.9% compared to the control. The CeO2 NPs had a high capacity for As(III) adsorption (20.2 mg/g CeO2) in the bioassay medium, effectively reducing dissolved As(III) in the aqueous solution and resulting in reduced toxicity. Transmission electron microscopy was used to study the transport of CeO2 NPs into 16HBE14o- cells. NP uptake via engulfment was observed and the internalized NPs accumulated in vesicles. The results demonstrate that dissolved As(III) in the aqueous solution was the decisive factor controlling As(III) toxicity of 16HBE14o- cells, and that CeO2 NPs effectively reduced available As(III) through adsorption. These data emphasize the evaluation of mixtures when assaying toxicity.
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Affiliation(s)
- Chao Zeng
- Department of Chemical and Environmental Engineering, The University of Arizona, P.O. Box 210011, Tucson, AZ 85721, USA
| | - Chi Nguyen
- Department of Chemical and Environmental Engineering, The University of Arizona, P.O. Box 210011, Tucson, AZ 85721, USA
| | - Scott Boitano
- Department of Physiology and The Asthma and Airway Disease Research Center, The University of Arizona, P.O. Box 245030, Tucson, AZ 85724, USA
| | - Jim A Field
- Department of Chemical and Environmental Engineering, The University of Arizona, P.O. Box 210011, Tucson, AZ 85721, USA
| | - Farhang Shadman
- Department of Chemical and Environmental Engineering, The University of Arizona, P.O. Box 210011, Tucson, AZ 85721, USA
| | - Reyes Sierra-Alvarez
- Department of Chemical and Environmental Engineering, The University of Arizona, P.O. Box 210011, Tucson, AZ 85721, USA.
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25
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Braun K, Stürzel CM, Biskupek J, Kaiser U, Kirchhoff F, Lindén M. Comparison of different cytotoxicity assays for in vitro evaluation of mesoporous silica nanoparticles. Toxicol In Vitro 2018; 52:214-221. [PMID: 29940343 DOI: 10.1016/j.tiv.2018.06.019] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 06/19/2018] [Accepted: 06/22/2018] [Indexed: 10/28/2022]
Abstract
Colorimetric or luminogenic cytotoxicity assays are typically applied for in vitro cytotoxicity evaluations due to their easy handling and low cost. However, the results may be strongly assay-dependent. Furthermore, when applied to nanoparticle toxicity screening, nanoparticle-specific interferences can occur. Therefore, it is important to evaluate the assays for different classes of nanoparticles. Mesoporous silica nanoparticles (MSNs) have emerged as a promising platform for both diagnostic and therapeutic applications but a comparison between the commonly employed colorimetric formazan-dependent MTT and WST-1 and luminescent ATP-dependent cytotoxicity assays is still missing. In this work, we evaluated the applicability of four different in vitro cell viability assays for the cytotoxicity analysis of three differently functionalized mesoporous silica nanoparticles towards TZM-bl indicator cells. The results derived from the colorimetric measurements of cell-viability were compared with results obtained by cell count experiments, flow cytometry, and optical microscopy. The correlation between the viability assay results and the viable cell count was observed to be both assay and particle dependent. The MTT assay generally overestimated the cytotoxicity of the mesoporous silica particles, while the WST-1 assay sometimes clearly underestimated their cytotoxicity and even suggested a viability exceeding 100%. Of the two ATP-based assays, the CellTiterGlo assay gave the best correlation with cell count data, although some particle-dependent effects were observed. In conclusion, ATP-based assays seem most suitable for in vitro cytotoxicity evaluation of MSNs.
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Affiliation(s)
- Katharina Braun
- Institute of Inorganic Chemistry II, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
| | - Christina Martina Stürzel
- Institute of Molecular Virology, Ulm University Medical Centre, Meyerhofstraße 1, 89081 Ulm, Germany.
| | - Johannes Biskupek
- Electron microscopy group of material science, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
| | - Ute Kaiser
- Electron microscopy group of material science, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
| | - Frank Kirchhoff
- Institute of Molecular Virology, Ulm University Medical Centre, Meyerhofstraße 1, 89081 Ulm, Germany.
| | - Mika Lindén
- Institute of Inorganic Chemistry II, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
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26
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Sengar P, Juárez P, Verdugo-Meza A, Arellano DL, Jain A, Chauhan K, Hirata GA, Fournier PGJ. Development of a functionalized UV-emitting nanocomposite for the treatment of cancer using indirect photodynamic therapy. J Nanobiotechnology 2018; 16:19. [PMID: 29482561 PMCID: PMC5827996 DOI: 10.1186/s12951-018-0344-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 02/13/2018] [Indexed: 01/08/2023] Open
Abstract
Background Photodynamic therapy is a promising cancer therapy modality but its application for deep-seated tumor is mainly hindered by the shallow penetration of visible light. X-ray-mediated photodynamic therapy (PDT) has gained a major attention owing to the limitless penetration of X-rays. However, substantial outcomes have still not been achieved due to the low luminescence efficiency of scintillating nanoparticles and weak energy transfer to the photosensitizer. The present work describes the development of Y2.99Pr0.01Al5O12-based (YP) mesoporous silica coated nanoparticles, multifunctionalized with protoporphyrin IX (PpIX) and folic acid (YPMS@PpIX@FA) for potential application in targeted deep PDT. Results A YP nanophosphor core was synthesized using the sol–gel method to be used as X-ray energy transducer and was then covered with a mesoporous silica layer. The luminescence analysis indicated a good spectral overlap between the PpIX and nanoscintillator at the Soret as well as Q-band region. The comparison of the emission spectra with or without PpIX showed signs of energy transfer, a prerequisite for deep PDT. In vitro studies showed the preferential uptake of the nanocomposite in cancer cells expressing the folate receptorFolr1, validating the targeting efficiency. Direct activation of conjugated PpIX with UVA in vitro induced ROS production causing breast and prostate cancer cell death indicating that the PpIX retained its activity after conjugation to the nanocomposite. The in vivo toxicity analysis showed the good biocompatibility and non-immunogenic response of YPMS@PpIX@FA. Conclusion Our results indicate that YPMS@PpIX@FA nanocomposites are promising candidates for X-ray-mediated PDT of deep-seated tumors. The design of these nanoparticles allows the functionalization with exchangeable targeting ligands thus offering versatility, in order to target various cancer cells, expressing different molecular targets on their surface. Electronic supplementary material The online version of this article (10.1186/s12951-018-0344-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Prakhar Sengar
- Biomedical Innovation Department, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, (CICESE), Carretera Tijuana Ensenada No. 3918, Zona Playitas, 22860, Ensenada, Baja California, Mexico.,Centro de Nanociencias y Nanotecnología (CNyN), Universidad Nacional Autónoma de México (UNAM), Ensenada, Baja California, Mexico.,Posgrado en Física de Materiales, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, (CICESE), Ensenada, Baja California, Mexico
| | - Patricia Juárez
- Biomedical Innovation Department, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, (CICESE), Carretera Tijuana Ensenada No. 3918, Zona Playitas, 22860, Ensenada, Baja California, Mexico
| | - Andrea Verdugo-Meza
- Biomedical Innovation Department, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, (CICESE), Carretera Tijuana Ensenada No. 3918, Zona Playitas, 22860, Ensenada, Baja California, Mexico
| | - Danna L Arellano
- Biomedical Innovation Department, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, (CICESE), Carretera Tijuana Ensenada No. 3918, Zona Playitas, 22860, Ensenada, Baja California, Mexico
| | - Akhil Jain
- Biomedical Innovation Department, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, (CICESE), Carretera Tijuana Ensenada No. 3918, Zona Playitas, 22860, Ensenada, Baja California, Mexico.,Centro de Nanociencias y Nanotecnología (CNyN), Universidad Nacional Autónoma de México (UNAM), Ensenada, Baja California, Mexico.,Posgrado en Física de Materiales, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, (CICESE), Ensenada, Baja California, Mexico
| | - Kanchan Chauhan
- Centro de Nanociencias y Nanotecnología (CNyN), Universidad Nacional Autónoma de México (UNAM), Ensenada, Baja California, Mexico
| | - Gustavo A Hirata
- Centro de Nanociencias y Nanotecnología (CNyN), Universidad Nacional Autónoma de México (UNAM), Ensenada, Baja California, Mexico
| | - Pierrick G J Fournier
- Biomedical Innovation Department, Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, (CICESE), Carretera Tijuana Ensenada No. 3918, Zona Playitas, 22860, Ensenada, Baja California, Mexico.
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27
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Zheng G, Shen Y, Zhao R, Chen F, Zhang Y, Xu A, Shao J. Dual-Targeting Multifuntional Mesoporous Silica Nanocarrier for Codelivery of siRNA and Ursolic Acid to Folate Receptor Overexpressing Cancer Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:6904-6911. [PMID: 28771340 DOI: 10.1021/acs.jafc.7b03047] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A targeting drug delivery system (TDDS) can selectively deliver antitumor drugs to cancerous parts to improve its anticancer efficacy. Hence, a targeted drug delivery system (UA/siVEGF@MSN-FA) coloading ursolic acid (UA) and vascular endothelial growth factor (VEGF) targeted siRNA (siVEGF) based on mesoporous silica (MSN) nanocarrier modified by a folic acid (FA) molecule was designed and synthesized. The MSN-FA nanoparticles were investigated for shape, diameter, and zeta potential and and by infrared (IR) spectroscopy. FR-overexpressing HeLa cells and FR-negative HepG2 cell lines were used to evaluate the in vitro cellular uptake and the cytotoxicity of MSN-FA nanoparticles. The morphology of HeLa cells transfected with siVEGF@MSN-FA was observed using fluorescence microscopy. Our findings demonstrated that UA@MSN-FA nanoparticles were near-spherical, and the particle size was about 209 ± 9.21 nm. The MSN-FA nanocarrier not only could enhance the in vitro transfection efficiency and the stability of siVEGF but also could further improve the targeted anticancer efficacy of UA and siVEGF via the active targeting property of FA. Overall, the MSN-FA drug delivery system could serve as an excellent material in biomedical applications.
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Affiliation(s)
- Guirong Zheng
- Cancer Metastasis Alert and Prevention Center, Pharmaceutical Photocatalysis of State Key Laboratory of Photocatalysis on Energy and Environment, and Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University , Fuzhou 350116, China
| | - Yiling Shen
- Cancer Metastasis Alert and Prevention Center, Pharmaceutical Photocatalysis of State Key Laboratory of Photocatalysis on Energy and Environment, and Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University , Fuzhou 350116, China
| | - Ruirui Zhao
- Cancer Metastasis Alert and Prevention Center, Pharmaceutical Photocatalysis of State Key Laboratory of Photocatalysis on Energy and Environment, and Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University , Fuzhou 350116, China
| | - Fan Chen
- Cancer Metastasis Alert and Prevention Center, Pharmaceutical Photocatalysis of State Key Laboratory of Photocatalysis on Energy and Environment, and Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University , Fuzhou 350116, China
| | - Ying Zhang
- Cancer Metastasis Alert and Prevention Center, Pharmaceutical Photocatalysis of State Key Laboratory of Photocatalysis on Energy and Environment, and Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University , Fuzhou 350116, China
| | - Aixiao Xu
- Cancer Metastasis Alert and Prevention Center, Pharmaceutical Photocatalysis of State Key Laboratory of Photocatalysis on Energy and Environment, and Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University , Fuzhou 350116, China
| | - Jingwei Shao
- Cancer Metastasis Alert and Prevention Center, Pharmaceutical Photocatalysis of State Key Laboratory of Photocatalysis on Energy and Environment, and Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University , Fuzhou 350116, China
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28
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Zhang X, Zhang Z, Zhang S, Li D, Ma W, Ma C, Wu F, Zhao Q, Yan Q, Xing B. Size Effect on the Cytotoxicity of Layered Black Phosphorus and Underlying Mechanisms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1701210. [PMID: 28696584 DOI: 10.1002/smll.201701210] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 05/28/2017] [Indexed: 06/07/2023]
Abstract
A systematic cytotoxicity study of layered black phosphorus (BP) is urgently needed before moving forward to its potential biomedical applications. Herein, bulk BP crystals are synthesized and exfoliated into layered BP with different lateral size and thickness. The cytotoxicity of as-exfoliated layered BP is evaluated by a label-free real-time cell analysis technique, displaying a concentration-, size-, and cell type-dependent response. The IC50 values can vary by 40 and 30 times among the BP sizes and cell types, respectively. BP-1 with the largest lateral size and thickness has the highest cytotoxicity; whereas the smallest BP-3 only shows moderate toxicity. The sensitivity of three tested cell lines follows the sequence of 293T > NIH 3T3 > HCoEpiC. Two possible mechanisms for BP to induce cytotoxicity are proposed and verified: (1) the generation of intracellular reactive oxygen species (ROS) is detected by a ROS sensitive probe using the inverted fluorescence microscopy and flow cytometry; (2) the interaction of layered BP and model cell membrane is examined by quartz crystal microbalance with dissipation, illustrating the disruption of cell membrane integrity especially by the largest BP-1. This systematic study of BP's cytotoxicity will shed light on its future biomedical and environmental applications.
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Affiliation(s)
- Xuejiao Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Ziming Zhang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Siyu Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Dengyu Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Ma
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - ChuanXin Ma
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, 01003, USA
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT, 06504, USA
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Qing Zhao
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Qingfeng Yan
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, 01003, USA
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29
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He H, Kuriyan AE, Su CW, Mahabole M, Zhang Y, Zhu YT, Flynn HW, Parel JM, Tseng SCG. Inhibition of Proliferation and Epithelial Mesenchymal Transition in Retinal Pigment Epithelial Cells by Heavy Chain-Hyaluronan/Pentraxin 3. Sci Rep 2017; 7:43736. [PMID: 28252047 PMCID: PMC5333089 DOI: 10.1038/srep43736] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 01/30/2017] [Indexed: 01/15/2023] Open
Abstract
Proliferative vitreoretinopathy (PVR) is mediated by proliferation and epithelial mesenchymal transition (EMT) of retinal pigment epithelium (RPE). Because heavy chain-hyaluronic acid/pentraxin 3 (HC-HA/PTX3) purified from human amniotic membrane exerts anti-inflammatory and anti-scarring actions, we hypothesized that HC-HA/PTX3 could inhibit these PVR-related processes in vitro. In this study, we first optimized an ARPE-19 cell culture model to mimic PVR by defining cell density, growth factors, and cultivation time. Using this low cell density culture model and HA as a control, we tested effects of HC-HA/PTX3 on the cell viability (cytotoxicity), proliferation (EGF + FGF-2) and EMT (TGF-β1). Furthermore, we determined effects of HC-HA/PTX3 on cell migration (EGF + FGF-2 + TGF-β1) and collagen gel contraction (TGF-β1). We found both HA and HC-HA/PTX3 were not toxic to unstimulated RPE cells. Only HC-HA/PTX3 dose-dependently inhibited proliferation and EMT of stimulated RPE cells by down-regulating Wnt (β-catenin, LEF1) and TGF-β (Smad2/3, collagen type I, α-SMA) signaling, respectively. Additionally, HA and HC-HA/PTX3 inhibited migration but only HC-HA/PTX3 inhibited collagen gel contraction. These results suggest HC-HA/PTX3 is a non-toxic, potent inhibitor of proliferation and EMT of RPE in vitro, and HC-HA/PTX3’s ability to inhibit PVR formation warrants evaluation in an animal model.
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Affiliation(s)
- Hua He
- TissueTech, Inc., Miami, FL, 33173, USA
| | - Ajay E Kuriyan
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.,Flaum Eye Institute, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | | | | | - Yuan Zhang
- Ocular Surface Center and Ocular Surface Research &Education Foundation, Miami, FL, 33173, USA
| | | | - Harry W Flynn
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Jean-Marie Parel
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Scheffer C G Tseng
- TissueTech, Inc., Miami, FL, 33173, USA.,Ocular Surface Center and Ocular Surface Research &Education Foundation, Miami, FL, 33173, USA
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30
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Sun D, Li N, Zhang W, Zhao Z, Mou Z, Huang D, Liu J, Wang W. Design of PLGA-functionalized quercetin nanoparticles for potential use in Alzheimer’s disease. Colloids Surf B Biointerfaces 2016; 148:116-129. [DOI: 10.1016/j.colsurfb.2016.08.052] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/26/2016] [Accepted: 08/29/2016] [Indexed: 12/14/2022]
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31
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Lee CG, Koo JC, Park JK. Antifungal Effect of Chitosan as Ca(2+) Channel Blocker. THE PLANT PATHOLOGY JOURNAL 2016; 32:242-250. [PMID: 27298599 PMCID: PMC4892820 DOI: 10.5423/ppj.oa.08.2015.0162] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 02/06/2016] [Accepted: 02/15/2016] [Indexed: 06/06/2023]
Abstract
The aim of this study was to investigate antifungal activity of a range of different molecular weight (MW) chitosan against Penicillium italicum. Our results demonstrate that the antifungal activity was dependent both the MW and concentration of the chitosan. Among a series of chitosan derived from the hydrolysis of high MW chitosan, the fractions containing various sizes of chitosan ranging from 3 to 15 glucosamine units named as chitooligomers-F2 (CO-F2) was found to show the highest antifungal activity against P. italicum. Furthermore, the effect of CO-F2 toward this fungus was significantly reduced in the presence of Ca(2+), whereas its effect was recovered by ethylenediaminetetraacetic acid, suggesting that the CO-F2 acts via disruption of Ca(2+) gradient required for survival of the fungus. Our results suggest that CO-F2 may serve as potential compounds to develop alternatives to synthetic fungicides for the control of the postharvest diseases.
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Affiliation(s)
- Choon Geun Lee
- Department of Life Science, College of BioNano, Gachon University, Seongnam 13120,
Korea
| | - Ja Choon Koo
- Division of Science Education and Institute of Fusion Science, Chonbuk National University, Jeonju 54896,
Korea
| | - Jae Kweon Park
- Department of Life Science, College of BioNano, Gachon University, Seongnam 13120,
Korea
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32
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Autophagy upregulation promotes macrophages to escape mesoporous silica nanoparticle (MSN)-induced NF-κB-dependent inflammation. Inflamm Res 2016; 65:325-41. [PMID: 26860538 DOI: 10.1007/s00011-016-0919-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 01/19/2016] [Accepted: 01/21/2016] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Our previous studies (Int J Nanomed 10:22, 2015) have indicated that a single large dose of mesoporous silica nanoparticles (MSNs) can induce severe and selective nephrotoxicity, which is closely related to inflammation mediated by the NF-κB pathway. However, the effect of MSNs on other organs and the interactions of nanomaterials with biological systems remain rudimentary. OBJECTIVE This study aimed to clarify the biological behaviour and influence of MSNs on macrophages. METHODS The mice received a single intraperitoneal injection of a suspension of 150, 300 of 600 mg/kg MSNs, and RAW 264.7 cells were treated with MSNs at various concentrations and times. Cell viability was determined by MTT assay and LDH release assay. The NF-κB pathway and the target proinflammatory cytokines IL-1β and TNF-α were determined by western blotting or ELISA. Autophagy is considered as an emerging mechanism of nanomaterials. So the autophagic ultrastructural analysis, the determination of Beclin-1 and LC3 expression, and the calculation of LC3II dots were employed to verify autophagy activation. In addition, RNA interference, autophagy agonist and inhibitor were used to explore the role of autophagy in inflammation. RESULTS The results indicated that MSNs are internalized into macrophages and induce cytotoxicity in a dose- and time-dependent manner. The NF-κB pathway, IL-1β and TNF-α were induced and released by MSNs. The levels of Beclin-1 and LC3II dots were obviously up-regulated by MSNs, which indicated that autophagy was induced in the MSN-treated cells. Moreover, the enhanced autophagy can attenuate the inflammation mediated by the NF-κB pathway, whereas the inhibition of autophagy can contribute to inflammation. CONCLUSIONS In summary, our results suggest that autophagy may be a possible protective factor in inflammation induced by MSNs in macrophages.
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Abstract
The pharmacological use of new therapeutics is often limited by a safe and effective drug-delivery system. In this sense, new chemical CDK inhibitors are not an exception. Nanotechnology may be able to solve some of the main problems limiting cancer treatments such as more specific delivery of therapeutics and reduction of toxic secondary effects. It provides new delivery systems able to specifically target cancer cells and release the active molecules in a controlled fashion. Specifically, silica mesoporous supports (SMPS) have emerged as an alternative for more classical drug delivery systems based on polymers. In this chapter, we describe the synthesis of a SMPS containing the CDK inhibitor roscovitine as cargo molecule and the protocols for confirmation of the proper cargo release of the nanoparticles in cell culture employing cell viability, cellular internalization, and cell death induction studies.
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Affiliation(s)
- Daniel Alvira
- Centre Mediterranéen de Médecine Moléculaire (C3M), équipe "Biology and pathology of melanocyte cells: from skin pigmentation to melanomas", Institut national de la santé et de la recherche médicale (Inserm), U1065, BP 2 3194, 06204, Nice, France
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Paolini A, Guarch CP, Ramos-López D, de Lapuente J, Lascialfari A, Guari Y, Larionova J, Long J, Nano R. Rhamnose-coated superparamagnetic iron-oxide nanoparticles: an evaluation of their in vitro cytotoxicity, genotoxicity and carcinogenicity. J Appl Toxicol 2015; 36:510-20. [PMID: 26708321 DOI: 10.1002/jat.3273] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 11/05/2015] [Accepted: 11/06/2015] [Indexed: 12/16/2022]
Abstract
Tumor recurrence after the incomplete removal of a tumor mass inside brain tissue is the main reason that scientists are working to identify new strategies in brain oncologic therapy. In particular, in the treatment of the most malignant astrocytic tumor glioblastoma, the use of magnetic nanoparticles seems to be one of the most promising keys in overcoming this problem, namely by means of magnetic fluid hyperthermia (MFH) treatment. However, the major unknown issue related to the use of nanoparticles is their toxicological behavior when they are in contact with biological tissues. In the present study, we investigated the interaction of glioblastoma and other tumor cell lines with superparamagnetic iron-oxide nanoparticles covalently coated with a rhamnose derivative, using proper cytotoxic assays. In the present study, we focused our attention on different strategies of toxicity evaluation comparing different cytotoxicological approaches in order to identify the biological damages induced by the nanoparticles. The data show an intensive internalization process of rhamnose-coated iron oxide nanoparticles by the cells, suggesting that rhamnose moiety is a promising biocompatible coating in favoring cells' uptake. With regards to cytotoxicity, a 35% cell death at a maximum concentration, mainly as a result of mitochondrial damages, was found. This cytotoxic behavior, along with the high uptake ability, could facilitate the use of these rhamnose-coated iron-oxide nanoparticles for future MFH therapeutic treatments.
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Affiliation(s)
- Alessandro Paolini
- Bambino Gesù Children's Hospital-IRCCS, Gene Expression - Microarrays Laboratory, Rome, Italy.,Department of Biology and Biotechnology 'Lazzaro Spallanzani', University of Pavia, Pavia, Italy
| | - Constança Porredon Guarch
- Unit of Experimental Toxicology and Ecotoxicology (UTOX-CERETOX), Barcelona Science Park, Barcelona, Spain
| | - David Ramos-López
- Unit of Experimental Toxicology and Ecotoxicology (UTOX-CERETOX), Barcelona Science Park, Barcelona, Spain
| | - Joaquín de Lapuente
- Unit of Experimental Toxicology and Ecotoxicology (UTOX-CERETOX), Barcelona Science Park, Barcelona, Spain
| | | | - Yannick Guari
- ICGM - UMR5253- Equipe IMNO, Université de Montpellier, Montpellier CEDEX 5, France
| | - Joulia Larionova
- ICGM - UMR5253- Equipe IMNO, Université de Montpellier, Montpellier CEDEX 5, France
| | - Jerome Long
- ICGM - UMR5253- Equipe IMNO, Université de Montpellier, Montpellier CEDEX 5, France
| | - Rosanna Nano
- Department of Biology and Biotechnology 'Lazzaro Spallanzani', University of Pavia, Pavia, Italy
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35
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Comparative safety evaluation of silica-based particles. Toxicol In Vitro 2015; 30:355-63. [DOI: 10.1016/j.tiv.2015.09.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 08/13/2015] [Accepted: 09/29/2015] [Indexed: 11/19/2022]
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36
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Qu H, Bhattacharyya S, Ducheyne P. Silicon oxide based materials for controlled release in orthopedic procedures. Adv Drug Deliv Rev 2015; 94:96-115. [PMID: 26032046 DOI: 10.1016/j.addr.2015.05.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 05/21/2015] [Accepted: 05/25/2015] [Indexed: 12/14/2022]
Abstract
By virtue of excellent tissue responses in bone tissue, silicon oxide (silica) based materials have been used for bone tissue engineering. Creating nanoscale porosity within silica based materials expands their applications into the realm of controlled release area. This additional benefit of silica based materials widens their application in the orthopedic fields in a major way. This review discusses the various chemical and physical forms of silica based controlled release materials, the release mechanisms, the applications in orthopedic procedures and their overall biocompatibility.
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Stepanenko AA, Dmitrenko VV. Pitfalls of the MTT assay: Direct and off-target effects of inhibitors can result in over/underestimation of cell viability. Gene 2015; 574:193-203. [PMID: 26260013 DOI: 10.1016/j.gene.2015.08.009] [Citation(s) in RCA: 189] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 07/30/2015] [Accepted: 08/05/2015] [Indexed: 12/18/2022]
Abstract
The MTT assay (to a less degree MTS, XTT or WST) is a widely exploited approach for measuring cell viability/drug cytotoxicity. MTT reduction occurs throughout a cell and can be significantly affected by a number of factors, including metabolic and energy perturbations, changes in the activity of oxidoreductases, endo-/exocytosis and intracellular trafficking. Over/underestimation of cell viability by the MTT assay may be due to both adaptive metabolic and mitochondrial reprogramming of cells subjected to drug treatment-mediated stress and inhibitor off-target effects. Previously, imatinib, rottlerin, ursolic acid, verapamil, resveratrol, genistein nanoparticles and some polypeptides were shown to interfere with MTT reduction rate resulting in inconsistent results between the MTT assay and alternative assays. Here, to test the under/overestimation of viability by the MTT assay, we compared results derived from the MTT assay with the trypan blue exclusion assay after treatment of glioblastoma U251, T98G and C6 cells with three widely used inhibitors with the known direct and side effects on energy and metabolic homeostasis - temozolomide (TMZ), a DNA-methylating agent, temsirolimus (TEM), an inhibitor of mTOR kinase, and U0126, an inhibitor of MEK1/2 kinases. Inhibitors were applied shortly as in IC50 evaluating studies or long as in studies focusing on drug resistance acquisition. We showed that over/underestimation of cell viability by the MTT assay and its significance depends on a cell line, a time point of viability measurement and other experimental parameters. Furthermore, we provided a comprehensive survey of factors that should be accounted in the MTT assay. To avoid result misinterpretation, supplementation of the tetrazolium salt-based assays with other non-metabolic assays is recommended.
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Affiliation(s)
- A A Stepanenko
- Department of Biosynthesis of Nucleic Acids, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo str. 150, Kyiv 03680, Ukraine.
| | - V V Dmitrenko
- Department of Biosynthesis of Nucleic Acids, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo str. 150, Kyiv 03680, Ukraine
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High-throughput, quantitative assessment of the effects of low-dose silica nanoparticles on lung cells: grasping complex toxicity with a great depth of field. BMC Genomics 2015; 16:315. [PMID: 25895662 PMCID: PMC4404697 DOI: 10.1186/s12864-015-1521-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 04/10/2015] [Indexed: 01/23/2023] Open
Abstract
Background The toxicity of manufactured fumed silica nanoparticles (NPs) remains poorly investigated compared to that of crystalline silica NPs, which have been associated with lung diseases after inhalation. Amorphous silica NPs are a raw material for manufactured nanocomposites, such as cosmetics, foods, and drugs, raising concerns about their potential toxicity. Results The size of the NPs was determined by dynamic light scattering and their shape was visualized by atomic force microscopy (10 ± 4 nm). The pertinent toxicological concentration and dynamic ranges were determined using viability tests and cellular impedance. We combined transcriptomics and proteomics to assess the cellular and molecular effects of fumed silica in A549 human alveolar epithelial cells. The “no observed transcriptomic adverse effect level” (NOTEL) was set to 1.0 μg/cm2, and the “lowest observed adverse transcriptional effect level” (LOTEL) was set at 1.5 μg/cm2. We carried out genome-wide expression profiles with microarrays and identified, by shotgun proteomics, the exoproteome changes in lung cells after exposure to NP doses (0.1, 1.0, 1.5, 3.0, and 6.0 μg/cm2) at two time points (24 h and 72 h). The data revealed a hierarchical, dose-dependent cellular response to silica NPs. At 1.5 μg/cm2, the Rho signaling cascade, actin cytoskeleton remodeling, and clathrin-mediated endocytosis were induced. At 3.0 μg/cm2, many inflammatory mediators were upregulated and the coagulation system pathway was triggered. Lastly, at 6.0 μg/cm2, oxidative stress was initiated. The proteins identified in the extracellular compartment were consistent with these findings. Conclusions The alliance of two high-throughput technologies allowed the quantitative assessment of the cellular effects and molecular consequences of exposure of lung cells to low doses of NPs. These results were obtained using a pathway-driven analysis instead of isolated genes. As in photography, toxicogenomics allows, at the same time, the visualization of a wide spectrum of biological responses and a “zoom in” to the details with a great depth of field. This study illustrates how such an approach based on human cell culture models is a valuable predictive screening tool to evaluate the toxicity of many potentially harmful emerging substances, alone or in mixtures, in the framework of future regulatory reinforcements. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-1521-5) contains supplementary material, which is available to authorized users.
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Liu Y, Chen Q, Xu M, Guan G, Hu W, Liang Y, Zhao X, Qiao M, Chen D, Liu H. Single peptide ligand-functionalized uniform hollow mesoporous silica nanoparticles achieving dual-targeting drug delivery to tumor cells and angiogenic blood vessel cells. Int J Nanomedicine 2015; 10:1855-67. [PMID: 25834425 PMCID: PMC4358692 DOI: 10.2147/ijn.s75098] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The purpose of this study was to construct hollow mesoporous silica nanoparticles (HMSN) decorated with tLyp-1 peptide (tHMSN) for dual-targeting drug delivery to tumor cells and angiogenic blood vessel cells. METHODS HMSN were synthesized de novo using a novel cationic surfactant-assisted selective etching strategy and were then modified with tLyp-1. Multiple methods, including transmission electron microscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis, bicinchoninic acid assay, and nitrogen adsorption and desorption isotherms, were used to characterize the tHMSN. Doxorubicin were chosen as the model cargo, and the uptake of doxorubicin-loaded tHMSN into MDA-MB-231 cells and human umbilical vein endothelial cells (HUVECs), as models of tumor cells and tumor neovascular endothelial cells, respectively, were observed and detected by confocal laser scanning microscopy and flow cytometry. An in vitro pharmacodynamic study and a study of the mechanism via which the nanoparticles were endocytosed were also performed. RESULTS HMSN with a highly uniform size and well oriented mesopores were synthesized. After tHMSN were characterized, enhanced uptake of the cargo carried by tHMSN into MDA-MB-231 cells and HUVECs compared with that of their unmodified counterparts was validated by confocal laser scanning microscopy and flow cytometry at the qualitative and quantitative levels, respectively. Further, the pharmacodynamic study suggested that, compared with their unmodified counterparts, doxorubicin-loaded tHMSN had an enhanced inhibitory effect on MDA-MB-231 cells and HUVECs in vitro. Finally, a preliminary study on the mechanism by which the nanoparticles were endocytosed indicated that the clathrin-mediated endocytosis pathway has a primary role in the transport of tHMSN into the cytoplasm. CONCLUSION tHMSN might serve as an effective active targeting nanocarrier strategy for anti-mammary cancer drug delivery.
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Affiliation(s)
- Yang Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, People's Republic of China ; Department of Pharmacy, Bengbu Medical College, Bengbu, People's Republic of China
| | - Qing Chen
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Ming Xu
- College of Pharmaceutical Science, Soochow University, Suzhou, People's Republic of China
| | - Guannan Guan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Wen Hu
- College of Pharmaceutical Science, Soochow University, Suzhou, People's Republic of China
| | - Ying Liang
- Department of Pharmacy, Bengbu Medical College, Bengbu, People's Republic of China
| | - Xiuli Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Mingxi Qiao
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Dawei Chen
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Hao Liu
- Department of Pharmacy, Bengbu Medical College, Bengbu, People's Republic of China
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Rajabi S, Ramazani A, Hamidi M, Naji T. Artemia salina as a model organism in toxicity assessment of nanoparticles. Daru 2015; 23:20. [PMID: 25888940 PMCID: PMC4344789 DOI: 10.1186/s40199-015-0105-x] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Accepted: 02/16/2015] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Because of expanding presence of nanomaterials, there has been an increase in the exposure of humans to nanoparticles that is why nanotoxicology studies are important. A number of studies on the effects of nanomatrials in in vitro and in vivo systems have been published. Currently cytotoxicity of different nanoparticles is assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay on different cell lines to determine cell viability, a tedious and expensive method. The aim of this study was to evaluate the Artemia salina test in comparison with the MTT assay in the assessment of cytotoxicity of nanostructures because the former method is more rapid and convenient and less expensive. METHODS At the first stage, toxicity of different nanoparticles with different concentrations (1.56-400 μg/mL) was measured by means of the brine shrimp lethality test. At the second stage, the effect of nanoparticles on the viability of the L929 cell line was assessed using the MTT assay. Experiments were conducted with each concentration in triplicate. RESULTS The results obtained from both tests (A. salina test and MTT assay) did not have statistically significant differences (P>0.05). CONCLUSIONS These findings suggest that the A. salina test may expedite toxicity experiments and decrease costs, and therefore, may be considered an alternative to the in vitro cell culture assay.
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Affiliation(s)
- Somayeh Rajabi
- Cell and Molecular Biology Departments, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran.
| | - Ali Ramazani
- Cell and Molecular Biology Departments, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran.
- Biotechnology Departments, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran.
| | - Mehrdad Hamidi
- Zanjan Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran.
| | - Tahereh Naji
- Cell and Molecular Biology Departments, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran.
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41
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Karunakaran G, Suriyaprabha R, Rajendran V, Kannan N. Effect of contact angle, zeta potential and particles size on the
in vitro
studies of Al
2
O
3
and SiO
2
nanoparticles. IET Nanobiotechnol 2015; 9:27-34. [DOI: 10.1049/iet-nbt.2013.0067] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- Gopalu Karunakaran
- Centre for Nanoscience and TechnologyK. S. Rangasamy College of TechnologyTiruchengode637215Tamil NaduIndia
| | - Rangaraj Suriyaprabha
- Centre for Nanoscience and TechnologyK. S. Rangasamy College of TechnologyTiruchengode637215Tamil NaduIndia
| | - Venkatachalam Rajendran
- Centre for Nanoscience and TechnologyK. S. Rangasamy College of TechnologyTiruchengode637215Tamil NaduIndia
| | - Narayanasamy Kannan
- Centre for Nanoscience and TechnologyK. S. Rangasamy College of TechnologyTiruchengode637215Tamil NaduIndia
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Jiao G, He X, Li X, Qiu J, Xu H, Zhang N, Liu S. Limitations of MTT and CCK-8 assay for evaluation of graphene cytotoxicity. RSC Adv 2015. [DOI: 10.1039/c5ra08958a] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cellular toxicity test is a key step in assessing the graphene toxicity for its biomedical applications.
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Affiliation(s)
- Guozheng Jiao
- Department of Chemistry
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Xiong He
- Department of Chemistry
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Xin Li
- Department of Chemistry
- Harbin Institute of Technology
- Harbin 150090
- China
- State Key Lab of Urban Water Resource and Environment
| | - Junqiang Qiu
- Institute of Traditional Chinese Medicine
- Key Laboratory of Chinese Materia Medica
- Ministry of Education
- Heilongjiang University of Chinese Medicine
- Harbin 150040
| | - Hongying Xu
- Institute of Traditional Chinese Medicine
- Key Laboratory of Chinese Materia Medica
- Ministry of Education
- Heilongjiang University of Chinese Medicine
- Harbin 150040
| | - Ning Zhang
- Institute of Traditional Chinese Medicine
- Key Laboratory of Chinese Materia Medica
- Ministry of Education
- Heilongjiang University of Chinese Medicine
- Harbin 150040
| | - Shumin Liu
- Institute of Traditional Chinese Medicine
- Key Laboratory of Chinese Materia Medica
- Ministry of Education
- Heilongjiang University of Chinese Medicine
- Harbin 150040
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Ferenc M, Katir N, Miłowska K, Bousmina M, Majoral JP, Bryszewska M, El Kadib A. Haemolytic activity and cellular toxicity of SBA-15-type silicas: elucidating the role of the mesostructure, surface functionality and linker length. J Mater Chem B 2015; 3:2714-2724. [DOI: 10.1039/c4tb01901f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Haemolytic activity and cellular toxicity of native, amino-, mercapto-, and carboxy-terminated SBA-15-type silicates were investigated.
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Affiliation(s)
- Małgorzata Ferenc
- Department of General Biophysics
- Faculty of Biology and Environmental Protection
- University of Lodz
- Lodz
- Poland
| | - Nadia Katir
- Euromed Research Institute
- Engineering Division
- Euro-Mediterranean University of Fes (UEMF)
- 30070 Fès
- Morocco
| | - Katarzyna Miłowska
- Department of General Biophysics
- Faculty of Biology and Environmental Protection
- University of Lodz
- Lodz
- Poland
| | - Mosto Bousmina
- Euromed Research Institute
- Engineering Division
- Euro-Mediterranean University of Fes (UEMF)
- 30070 Fès
- Morocco
| | - Jean-Pierre Majoral
- Laboratoire de Chimie de Coordination (LCC) CNRS
- 205 route de Narbonne
- 31077 Toulouse Cedex 4
- France
| | - Maria Bryszewska
- Department of General Biophysics
- Faculty of Biology and Environmental Protection
- University of Lodz
- Lodz
- Poland
| | - Abdelkrim El Kadib
- Euromed Research Institute
- Engineering Division
- Euro-Mediterranean University of Fes (UEMF)
- 30070 Fès
- Morocco
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Andrade GF, Carvalho JL, Júnior ASC, Goes AM, Sousa EMB. Osteogenic differentiation of adipose-derived stem cells in mesoporous SBA-16 and SBA-16 hydroxyapatite scaffolds. RSC Adv 2015. [DOI: 10.1039/c5ra07330h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Adipose-derived stem cells (ASCs) are currently a point of focus for bone tissue engineering applications.
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Affiliation(s)
- Gracielle F. Andrade
- SENAN
- Centro de Desenvolvimento da Tecnologia Nuclear – CDTN/CNEN
- Av. Presidente Antônio Carlos, 6627
- Campus da UFMG
- Belo Horizonte
| | - Juliana L. Carvalho
- Instituto de Ciências Biológicas
- Departamento de Bioquímica e Imunologia UFMG
- Belo Horizonte
- Brazil
| | | | - Alfredo M. Goes
- Instituto de Ciências Biológicas
- Departamento de Bioquímica e Imunologia UFMG
- Belo Horizonte
- Brazil
| | - Edésia M. B. Sousa
- SENAN
- Centro de Desenvolvimento da Tecnologia Nuclear – CDTN/CNEN
- Av. Presidente Antônio Carlos, 6627
- Campus da UFMG
- Belo Horizonte
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Patrulea V, Applegate LA, Ostafe V, Jordan O, Borchard G. Optimized synthesis of O-carboxymethyl-N,N,N-trimethyl chitosan. Carbohydr Polym 2014; 122:46-52. [PMID: 25817641 DOI: 10.1016/j.carbpol.2014.12.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 12/12/2014] [Accepted: 12/16/2014] [Indexed: 02/02/2023]
Abstract
We present here the synthesis of a highly O-carboxymethylated chitosan derivative. First, an improved protocol for the two-step synthesis of N-trimethyl chitosan (TMC) from chitosan was developed, yielding a maximum degree of quaternization (DQ) of up to 46.6%. Successively, the chitosan derivative O-carboxymethyl-N-trimethyl chitosan (CMTMC) was synthesized from the TMC obtained by applying an optimized synthesis pathway. In contrast to previous reports, the optimized protocol was shown to yield very high rates (>85%) of O-carboxymethylation of CMTMC, as shown by (1)H NMR and heteronuclear single quantum correlation ((1)H-(13)C HSQC). Finally, in vitro cytocompatibility (viability >80%) of the polymer was demonstrated using human fibroblasts.
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Affiliation(s)
- V Patrulea
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest Ansermet 30, 1211 Geneva, Switzerland; West University of Timisoara, Department of Biology-Chemistry, Pestalozzi 16, Timisoara 300115, Romania; West University of Timisoara, Advanced Environmental Research Laboratories, Oituz 4, Timisoara 300086, Romania
| | - Lee Ann Applegate
- University Hospital of Lausanne (CHUV-UNIL), Department of Musculoskeletal Medicine, EPCR/02/ch. Croisettes 22, 1066 Epalinges, Switzerland
| | - V Ostafe
- West University of Timisoara, Department of Biology-Chemistry, Pestalozzi 16, Timisoara 300115, Romania; West University of Timisoara, Advanced Environmental Research Laboratories, Oituz 4, Timisoara 300086, Romania
| | - O Jordan
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest Ansermet 30, 1211 Geneva, Switzerland
| | - G Borchard
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest Ansermet 30, 1211 Geneva, Switzerland.
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Mody KT, Mahony D, Zhang J, Cavallaro AS, Zhang B, Popat A, Mahony TJ, Yu C, Mitter N. Silica vesicles as nanocarriers and adjuvants for generating both antibody and T-cell mediated immune resposes to Bovine Viral Diarrhoea Virus E2 protein. Biomaterials 2014; 35:9972-9983. [DOI: 10.1016/j.biomaterials.2014.08.044] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 08/29/2014] [Indexed: 01/01/2023]
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Andrade GF, Gomide VS, da Silva Júnior AC, Goes AM, de Sousa EMB. An in situ synthesis of mesoporous SBA-16/hydroxyapatite for ciprofloxacin release: in vitro stability and cytocompatibility studies. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:2527-2540. [PMID: 25056197 DOI: 10.1007/s10856-014-5273-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 07/07/2014] [Indexed: 06/03/2023]
Abstract
The present work developed a biomaterial (HA/SBA-16) based on the growth of calcium phosphate (HA) particles within an organized silica structure (SBA-16) to evaluate its application as a drug delivery system. The samples were charged with ciprofloxacin as a model drug and in vitro release assays were carried out. The samples were characterized by elemental analysis (CHN), Fourier transform infrared spectroscopy, nitrogen adsorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM), small angle X-ray scattering (SAXS) and X-ray diffraction. The results obtained by TEM, SEM and SAXS reveal a well-defined cubic arrangement of a uniform spherical mesoporous structure, an intrinsic characteristic of these materials, which indicated that SBA-16 and HA/SBA-16 could potentially encapsulate bioactive molecules by means of ordered mesopores. It was found that both surface interaction and pore volume affect the rate and amount of ciprofloxacin released from the mesoporous materials. In vitro assays were performed to evaluate the adhesion, viability, and growth behavior of human adipose tissue-derived stem cells (hADSC) on SBA-16 and HA/SBA-16 nanocomposites to verify their potential as a scaffold for application in bone-tissue engineering using MTT assay and alkaline phosphatase activity tests. The results showed that the materials are promising systems for bone repair, providing a good environment for the adhesion and proliferation of rat mesenchymal stem cells and hADSC in vitro.
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Affiliation(s)
- Gracielle Ferreira Andrade
- SENAN, Centro de Desenvolvimento da Tecnologia Nuclear - CDTN/CNEN, Av. Presidente Antônio Carlos 6627 - Campus da UFMG, Belo Horizonte, MG, CEP 30270-901, Brazil
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Roggers R, Kanvinde S, Boonsith S, Oupický D. The practicality of mesoporous silica nanoparticles as drug delivery devices and progress toward this goal. AAPS PharmSciTech 2014; 15:1163-71. [PMID: 24871552 PMCID: PMC4179667 DOI: 10.1208/s12249-014-0142-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 05/07/2014] [Indexed: 12/23/2022] Open
Abstract
Mesoporous silica nanoparticles (MSNs) have been proposed as drug delivery devices for approximately 15 years. The history of in vitro studies has been promising, demonstrating that MSNs have the capability for stimulus-responsive controlled release, good cellular uptake, cell specific targeting, and the ability to carry a variety of cargoes from hydrophobic drug molecules to imaging agents. However, the translation of the in vitro findings to in vivo conditions has been slow. Herein, we review the current state-of-the-art in the use of MSN for systemic drug delivery in vivo and provide critical insight into the future of MSNs as systemic drug delivery devices and directions that should be undertaken to improve their practicality.
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Affiliation(s)
- Robert Roggers
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198 USA
| | - Shrey Kanvinde
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198 USA
| | - Suthida Boonsith
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198 USA
| | - David Oupický
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198 USA
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Fisichella M, Berenguer F, Steinmetz G, Auffan M, Rose J, Prat O. Toxicity evaluation of manufactured CeO2 nanoparticles before and after alteration: combined physicochemical and whole-genome expression analysis in Caco-2 cells. BMC Genomics 2014; 15:700. [PMID: 25145350 PMCID: PMC4150968 DOI: 10.1186/1471-2164-15-700] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 08/11/2014] [Indexed: 11/23/2022] Open
Abstract
Background Engineered nanomaterials may release nanosized residues, by degradation, throughout their life cycle. These residues may be a threat for living organisms. They may be ingested by humans through food and water. Although the toxicity of pristine CeO2 nanoparticles (NPs) has been documented, there is a lack of studies on manufactured nanoparticles, which are often surface modified. Here, we investigated the potential adverse effects of CeO2 Nanobyk 3810™ NPs, used in wood care, and their residues, altered by light or acid. Results Human intestinal Caco-2 cells were exposed to residues degraded by daylight or in a medium simulating gastric acidity. Size and zeta potential were determined by dynamic light scattering. The surface structure and redox state of cerium were analyzed by transmission electronic microscopy (TEM) and X-ray absorption spectroscopy, respectively. Viability tests were performed in Caco-2 cells exposed to NPs. Cell morphology was imaged with scanning electronic microscopy. Gene expression profiles obtained from cells exposed to NPs before and after their alteration were compared, to highlight differences in cellular functions. No change in the cerium redox state was observed for altered NPs. All CeO2 NPs suspended in the culture medium became microsized. Cytotoxicity tests showed no toxicity after Caco-2 cell exposure to these various NPs up to 170 μg/mL (24 h and 72 h). Nevertheless, a more-sensitive whole-gene-expression study, based on a pathway-driven analysis, highlighted a modification of metabolic activity, especially mitochondrial function, by altered Nanobyk 3810™. The down-regulation of key genes of this pathway was validated by qRT-PCR. Conversely, Nanobyk 3810™ coated with ammonium citrate did not display any adverse effect at the same concentration. Conclusion The degraded nanoparticles were more toxic than their coated counterparts. Desorption of the outside layer was the most likely cause of this discrepancy in toxicity. It can be assumed that the safe design of engineered nanoparticles could include robust protective layers conferring on them greater resistance to alteration during their life cycle. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-700) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | | | - Odette Prat
- CEA, IBEB, SBTN, Laboratoire d'Etude des Protéines Cibles, F-30207 Bagnols-sur-Cèze, France.
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