151
|
Bouallegui Y, Ben Younes R, Oueslati R, Sheehan D. Redox proteomic insights into involvement of clathrin-mediated endocytosis in silver nanoparticles toxicity to Mytilus galloprovincialis. PLoS One 2018; 13:e0205765. [PMID: 30372447 PMCID: PMC6205585 DOI: 10.1371/journal.pone.0205765] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 10/01/2018] [Indexed: 12/21/2022] Open
Abstract
Clathrin-mediated endocytosis is a major mode of nanoparticle (NP) internalization into cells. However, influence of internalization routes on nanoparticle toxicity is poorly understood. Here, we assess the impact of blocking clathrin-mediated endocytosis upon silver NP (AgNP) toxicity to gills and digestive glands of the mussel Mytilusgalloprovincialisusing the uptake inhibitor, amantadine. Animals were exposed for 12h to AgNP (< 50 nm) in the presence and absence of amantadine. Labeling of oxidative protein modifications, either thiol oxidation, carbonyl formation or both in two-dimensional electrophoresis separations revealed 16 differentially affected abundance spots. Amongst these, twelve hypothetical proteins were successfully identified by peptide mass fingerprinting (MALDI TOF-MS/MS). The proteins identified are involved in buffering redox status or in cytoprotection. We conclude that blockade of clathrin-mediated endocytosis protected against NP toxicity, suggesting this uptake pathway facilitates toxicity. Lysosomal degradation and autophagy are major mechanisms that might be induced to mitigate NP toxicity.
Collapse
Affiliation(s)
- Younes Bouallegui
- Research Unit of Immuno-Microbiology Environmental and Carcinogensis, Sciences Faculty of Bizerte, University of Carthage, Bizerte, Tunisia
| | - Ridha Ben Younes
- Research Unit of Immuno-Microbiology Environmental and Carcinogensis, Sciences Faculty of Bizerte, University of Carthage, Bizerte, Tunisia
| | - Ridha Oueslati
- Research Unit of Immuno-Microbiology Environmental and Carcinogensis, Sciences Faculty of Bizerte, University of Carthage, Bizerte, Tunisia
| | - David Sheehan
- Proteomic Research Group, School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
- Dept of Chemistry, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| |
Collapse
|
152
|
Abstract
The genetic modification of human T lymphocytes with established non-viral methods is inefficient. Linear polyethylenimine (l-PEI), one of the most popular non-viral transfection agents for mammalian cells in general, only achieves transfection rates in the single digit percentage range for these cells. Here, a well-defined 24-armed poly(2-dimethylamino) ethyl methacrylate (PDMAEMA) nanostar (number average of the molecular weight: 755 kDa, polydispersity: <1.21) synthesized via atom transfer radical polymerization (ATRP) from a silsesquioxane initiator core is proposed as alternative. The agent is used to prepare polyplexes with plasmid DNA (pDNA). Under optimal conditions these polyplexes reproducibly transfect >80% of the cells from a human T-cell leukemia cell line (Jurkat cells) at viabilities close to 90%. The agent also promotes pDNA uptake when simply added to a mixture of cells and pDNA. This constitutes a particular promising approach for efficient transient transfection at large scale. Finally, preliminary experiments were carried out with primary T cells from two different donors. Results were again significantly better than for l-PEI, although further research into the response of individual T cells to the transfection agent will be necessary, before either method can be used to routinely transfect primary T lymphocytes.
Collapse
|
153
|
Zhang C, Moonshi SS, Wang W, Ta HT, Han Y, Han FY, Peng H, Král P, Rolfe BE, Gooding JJ, Gaus K, Whittaker AK. High F-Content Perfluoropolyether-Based Nanoparticles for Targeted Detection of Breast Cancer by 19F Magnetic Resonance and Optical Imaging. ACS NANO 2018; 12:9162-9176. [PMID: 30118590 DOI: 10.1021/acsnano.8b03726] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Two important challenges in the field of 19F magnetic resonance imaging (MRI) are the maintenance of high fluorine content without compromising imaging performance, and effective targeting of small particles to diseased tissue. To address these challenges, we have developed a series of perfluoropolyether (PFPE)-based hyperbranched (HBPFPE) nanoparticles with attached peptide aptamer as targeting ligands for specific in vivo detection of breast cancer with high 19F MRI sensitivity. A detailed comparison of the HBPFPE nanoparticles (NPs) with the previously reported trifluoroethyl acrylate (TFEA)-based polymers demonstrates that the mobility of fluorinated segments of the HBPFPE nanoparticles is significantly enhanced (19F T2 > 80 ms vs 31 ms), resulting in superior MR imaging sensitivity. Selective targeting was confirmed by auto- and pair correlation analysis of fluorescence microscopy data, in vitro immunofluorescence, in vivo 19F MRI, ex vivo fluorescence and 19F NMR. The results highlight the high efficiency of aptamers for targeting and the excellent sensitivity of the PFPE moieties for 19F MRI. Of relevance to in vivo applications, the PFPE-based polymers exhibit much faster clearance from the body than the previously introduced perfluorocarbon emulsions ( t1/2 ∼ 20 h vs up to months). Moreover, the aptamer-conjugated NPs show significantly higher tumor-penetration, demonstrating the potential of these imaging agents for therapeutic applications. This report of the synthesis of polymeric aptamer-conjugated PFPE-based 19F MRI CAs with high fluorine content (∼10 wt %) demonstrates that these NPs are exciting candidates for detecting diseases with high imaging sensitivity.
Collapse
Affiliation(s)
| | | | | | | | | | - Felicity Y Han
- Centre for Integrated Preclinical Drug Development , The University of Queensland , Brisbane , Qld 4072 , Australia
| | | | - Petr Král
- Department of Biopharmaceutical Sciences , University of Illinois at Chicago , Chicago , Illinois 60612 , United States
| | | | | | | | | |
Collapse
|
154
|
Francia V, Aliyandi A, Salvati A. Effect of the development of a cell barrier on nanoparticle uptake in endothelial cells. NANOSCALE 2018; 10:16645-16656. [PMID: 30155550 DOI: 10.1039/c8nr03171a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
In order to improve the current success of nanomedicine, a better understanding of how nano-sized materials interact with and are processed by cells is required. Typical in vitro nanoparticle-cell interaction studies often make use of cells cultured at different cell densities. However, in vivo, for their successful delivery to the target tissue, nanomedicines need to overcome several barriers, such as endothelial and epithelial cell barriers. Unlike sub-confluent or confluent cell cultures, cell barriers are tight cell monolayers, expressing a series of specialized tight junction proteins between adjacent cells to limit paracellular transport and ensure close cell-to-cell interactions. A clear understanding on how the development of cells into a cell barrier may affect the uptake of nano-sized drug carriers is still missing. To this aim, here, human primary umbilical vein endothelial cells (HUVEC) are used as a model cell line to form endothelial cell barriers. Then, nanoparticle uptake is assessed in the developed endothelial barriers and compared to the uptake in sub-confluent or confluent HUVEC cultures. The results clearly show that the organization of cells into a cell barrier leads to a differential gene expression of endocytic markers, and - interestingly - this is accompanied by reduced nanoparticle uptake levels. Transport inhibitors are used to characterise the mechanisms involved in the uptake. However, we show that some of them can strongly compromise barrier integrity, thus impairing the interpretation of the outcomes, and overall, only a partial inhibition of nanoparticle uptake could be obtained.
Collapse
Affiliation(s)
- Valentina Francia
- Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
| | | | | |
Collapse
|
155
|
Willmann W, Dringen R. Monitoring of the Cytoskeleton-Dependent Intracellular Trafficking of Fluorescent Iron Oxide Nanoparticles by Nanoparticle Pulse-Chase Experiments in C6 Glioma Cells. Neurochem Res 2018; 43:2055-2071. [PMID: 30196349 DOI: 10.1007/s11064-018-2627-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 08/21/2018] [Accepted: 08/31/2018] [Indexed: 12/12/2022]
Abstract
Iron oxide nanoparticles (IONPs) are used for various biomedical and therapeutic approaches. To investigate the uptake and the intracellular trafficking of IONPs in neural cells we have performed nanoparticle pulse-chase experiments to visualize the internalization and the fate of fluorescent IONPs in C6 glioma cells and astrocyte cultures. Already a short exposure to IONPs for 10 min at 4 °C (nanoparticle pulse) allowed binding of substantial amounts of nanoparticles to the cells, while internalization of IONPs into the cell was prevented. The uptake of bound IONPs and the intracellular trafficking was started by increasing the temperature to 37 °C (chase period). While hardly any cellular fluorescence nor any iron staining was detectable directly after the nanoparticle pulse, dotted cellular fluorescence and iron patterns appeared already within a few minutes after start of the chase incubation and became intensified in the perinuclear region during further incubation for up to 90 min. Longer chase incubations resulted in separation of the fluorescent coat from the core of the internalized IONPs. Disruption of actin filaments in C6 cells strongly impaired the internalization of IONPs, whereas destabilization of microtubules traped IONP-containing vesicles to the plasma membrane. In conclusion, nanoparticle pulse-chase experiments allowed to synchronize the cellular uptake of fluorescent IONPs and to identify for C6 cells an actin-dependent early and a microtubule-dependent later process in the intracellular trafficking of fluorescent IONPs.
Collapse
Affiliation(s)
- Wiebke Willmann
- Center for Biomolecular Interactions Bremen, Faculty 2 (Biology/Chemistry), University of Bremen, PO. Box 330440, 28334, Bremen, Germany
- Center for Environmental Research and Sustainable Technology, Leobener Strasse, 28359, Bremen, Germany
| | - Ralf Dringen
- Center for Biomolecular Interactions Bremen, Faculty 2 (Biology/Chemistry), University of Bremen, PO. Box 330440, 28334, Bremen, Germany.
- Center for Environmental Research and Sustainable Technology, Leobener Strasse, 28359, Bremen, Germany.
| |
Collapse
|
156
|
Arya BD, Mittal S, Joshi P, Pandey AK, Ramirez-Vick JE, Singh SP. Graphene oxide–chloroquine nanoconjugate induce necroptotic death in A549 cancer cells through autophagy modulation. Nanomedicine (Lond) 2018; 13:2261-2282. [DOI: 10.2217/nnm-2018-0086] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aim: Chloroquine (Chl) has shown its potential in cancer therapy and graphene oxide (GO) exhibited excellent tumor-targeting ability, biocompatibility and low toxicity. We have endeavored to conjugate Chl to GO sheets and investigated the nonproliferation action on A549 cell lines along with cell signaling pathways. Materials & methods: Cellular toxicity, autophagic flux modulation and cell death mechanism induced by GO–Chl have been investigated on A549 cell lines. Results & conclusion: GO–Chl induces accumulation of autophagosomes (monodansylcadaverine staining, green fluorescence protein-tagged LC3 plasmid and transmission electron microscopy observations) in A549 cells through the blockade of autophagic flux that serves as scaffold for necrosome assembling and activates necroptotic cell death. GO–Chl nanoconjugate could be used as an effective cancer therapeutic agent, by targeting the autophagy necroptosis axis.
Collapse
Affiliation(s)
- Braham D Arya
- CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi 110012, India
- Academy of Scientific & Innovative Research (AcSIR), Sector 19, Ghaziabad, UP 201002, India
| | - Sandeep Mittal
- Academy of Scientific & Innovative Research (AcSIR), Sector 19, Ghaziabad, UP 201002, India
- CSIR-Indian Institute of Toxicology Research (CSIR-IITR), 31, Mahatma Gandhi Marg, Lucknow 226001, India
| | - Prachi Joshi
- CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi 110012, India
| | - Alok K Pandey
- Academy of Scientific & Innovative Research (AcSIR), Sector 19, Ghaziabad, UP 201002, India
- CSIR-Indian Institute of Toxicology Research (CSIR-IITR), 31, Mahatma Gandhi Marg, Lucknow 226001, India
| | - Jaime E Ramirez-Vick
- Department of Biomedical, Industrial & Human Factors Engineering, Wright State University, Dayton, OH 45435, USA
| | - Surinder P Singh
- CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi 110012, India
- Academy of Scientific & Innovative Research (AcSIR), Sector 19, Ghaziabad, UP 201002, India
| |
Collapse
|
157
|
Magrì D, Sánchez-Moreno P, Caputo G, Gatto F, Veronesi M, Bardi G, Catelani T, Guarnieri D, Athanassiou A, Pompa PP, Fragouli D. Laser Ablation as a Versatile Tool To Mimic Polyethylene Terephthalate Nanoplastic Pollutants: Characterization and Toxicology Assessment. ACS NANO 2018; 12:7690-7700. [PMID: 29944342 DOI: 10.1021/acsnano.8b01331] [Citation(s) in RCA: 149] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The presence of micro- and nanoplastics in the marine environment is raising strong concerns since they can possibly have a negative impact on human health. In particular, the lack of appropriate methodologies to collect the nanoplastics from water systems imposes the use of engineered model nanoparticles to explore their interactions with biological systems, with results not easily correlated with the real case conditions. In this work, we propose a reliable top-down approach based on laser ablation of polymers to form polyethylene terephthalate (PET) nanoplastics, which mimic real environmental nanopollutants, unlike synthetic samples obtained by colloidal chemistry. PET nanoparticles were carefully characterized in terms of chemical/physical properties and stability in different media. The nanoplastics have a ca. 100 nm average dimension, with significant size and shape heterogeneity, and they present weak acid groups on their surface, similarly to photodegraded PET plastics. Despite no toxic effects emerging by in vitro studies on human Caco-2 intestinal epithelial cells, the formed nanoplastics were largely internalized in endolysosomes, showing intracellular biopersistence and long-term stability in a simulated lysosomal environment. Interestingly, when tested on a model of intestinal epithelium, nano-PET showed high propensity to cross the gut barrier, with unpredictable long-term effects on health and potential transport of dispersed chemicals mediated by the nanopollutants.
Collapse
Affiliation(s)
- Davide Magrì
- Smart Materials , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
- Department of Informatics, Bioengineering, Robotics and Systems Engineering , University of Genova , Via All'Opera Pia, 13 , 16145 Genova , Italy
| | - Paola Sánchez-Moreno
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Gianvito Caputo
- Smart Materials , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Francesca Gatto
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
- Department of Engineering for Innovation , University of Salento , Via per Monteroni , 73100 Lecce , Italy
| | - Marina Veronesi
- D3-PharmaChemistry , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Giuseppe Bardi
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Tiziano Catelani
- Electron Microscopy Facility , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Daniela Guarnieri
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Athanassia Athanassiou
- Smart Materials , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| | - Despina Fragouli
- Smart Materials , Istituto Italiano di Tecnologia , Via Morego, 30 , 16163 Genova , Italy
| |
Collapse
|
158
|
Willmann W, Dringen R. How to Study the Uptake and Toxicity of Nanoparticles in Cultured Brain Cells: The Dos and Don't Forgets. Neurochem Res 2018; 44:1330-1345. [PMID: 30088236 DOI: 10.1007/s11064-018-2598-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 07/09/2018] [Accepted: 07/18/2018] [Indexed: 12/16/2022]
Abstract
Due to their exciting properties, engineered nanoparticles have obtained substantial attention over the last two decades. As many types of nanoparticles are already used for technical and biomedical applications, the chances that cells in the brain will encounter nanoparticles have strongly increased. To test for potential consequences of an exposure of brain cells to engineered nanoparticles, cell culture models for different types of neural cells are frequently used. In this review article we will discuss experimental strategies and important controls that should be used to investigate the physicochemical properties of nanoparticles for the cell incubation conditions applied as well as for studies on the biocompatibility and the cellular uptake of nanoparticles in neural cells. The main focus of this article will be the interaction of cultured neural cells with iron oxide nanoparticles, but similar considerations are important for studying the consequences of an exposure of other types of cultured cells with other types of nanoparticles. Our article aims to improve the understanding of the special technical challenges of working with nanoparticles on cultured neural cells, to identify potential artifacts and to prevent misinterpretation of data on the potential adverse or beneficial consequences of a treatment of cultured cells with nanoparticles.
Collapse
Affiliation(s)
- Wiebke Willmann
- Center for Biomolecular Interactions Bremen, Faculty 2 (Biology/Chemistry), University of Bremen, P.O. Box 330440, 28334, Bremen, Germany.,Center for Environmental Research and Sustainable Technology, Leobener Strasse, 28359, Bremen, Germany
| | - Ralf Dringen
- Center for Biomolecular Interactions Bremen, Faculty 2 (Biology/Chemistry), University of Bremen, P.O. Box 330440, 28334, Bremen, Germany. .,Center for Environmental Research and Sustainable Technology, Leobener Strasse, 28359, Bremen, Germany.
| |
Collapse
|
159
|
Choi E, Yoo W, Park JH, Kim S. Simultaneous Delivery of Electrostatically Complexed Multiple Gene-Targeting siRNAs and an Anticancer Drug for Synergistically Enhanced Treatment of Prostate Cancer. Mol Pharm 2018; 15:3777-3785. [PMID: 30028622 DOI: 10.1021/acs.molpharmaceut.8b00227] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Simultaneous silencing of multiple apoptosis-related genes is an attractive approach to treat cancer. In this article, we present a multiple gene-targeting siRNA/drug delivery system for prostate cancer treatment with a high efficiency. Bcl-2, survivin, and androgen receptor genes involved in the cell apoptosis pathways were chosen as silencing targets with three different siRNAs. The colloidal nanocomplex delivery system (<10 nm in size) was formulated electrostatically between anionic siRNAs and a cationic drug (BZT), followed by encapsulation with the Pluronic F-68 polymer. The formulated nanocomplex system exhibited sufficient stability against nuclease-induced degradation, leading to successful intracellular delivery for the desired therapeutic performance. Silencing of targeted genes and apoptosis induction were evaluated in vitro on human prostate LNCaP-LN3 cancer cells by using various biological analysis tools (e.g., real-time PCR, MTT cell viability test, and flow cytometry). It was demonstrated that when the total loaded siRNA amounts were kept the same in the nanocomplexes, the simultaneous silencing of triple genes with co-loaded siRNAs (i.e., Bcl-2, survivin, and AR-targeting siRNAs) enhanced BZT-induced apoptosis of cancer cells more efficiently than the silencing of each single gene alone, offering a novel way of improving the efficacy of gene therapeutics including anticancer drug.
Collapse
Affiliation(s)
- Eunshil Choi
- Center for Theragnosis , Korea Institute of Science and Technology (KIST) , Seoul 136-791 , Korea
| | - Wonjae Yoo
- Center for Theragnosis , Korea Institute of Science and Technology (KIST) , Seoul 136-791 , Korea.,School of Chemical Engineering, College of Engineering , Sungkyunkwan Univeristy , Suwon 440-746 , Korea
| | - Jae Hyung Park
- School of Chemical Engineering, College of Engineering , Sungkyunkwan Univeristy , Suwon 440-746 , Korea
| | - Sehoon Kim
- Center for Theragnosis , Korea Institute of Science and Technology (KIST) , Seoul 136-791 , Korea.,Division of Bio-Medical Science & Technology, KIST School , Korea University of Science and Technology (UST) , Seoul 136-791 , Korea
| |
Collapse
|
160
|
Managuli RS, Raut SY, Reddy MS, Mutalik S. Targeting the intestinal lymphatic system: a versatile path for enhanced oral bioavailability of drugs. Expert Opin Drug Deliv 2018; 15:787-804. [PMID: 30025212 DOI: 10.1080/17425247.2018.1503249] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION The major challenge of first pass metabolism in oral drug delivery can be surmounted by directing delivery toward intestinal lymphatic system (ILS). ILS circumvents the liver and transports drug directly into systemic circulation via thoracic duct. Lipid and polymeric nanoparticles are transported into ILS through lacteal and Peyer's patches. Moreover, surface modification of nanoparticles with ligand which is specific for Peyer's patches enhances the uptake of drugs into ILS. Bioavailability enhancement by lymphatic uptake is an advantageous approach adopted by scientists today. Therefore, it is important to understand clear insight of ILS in targeted drug delivery and challenges involved in it. AREAS COVERED Current review includes an overview of ILS, factors governing lymphatic transport of nanoparticles and absorption mechanism of lipid and polymeric nanoparticles into ILS. Various ligands used to target Peyer's patch and their conjugation strategies to nanoparticles are explained in detail. In vitro and in vivo models used to assess intestinal lymphatic transport of molecules are discussed further. EXPERT OPINION Although ILS offers a versatile pathway for nanotechnology based targeted drug delivery, extensive investigations on validation of the lymphatic transport models and on the strategies for gastric protection of targeted nanocarriers have to be perceived in for excellent performance of ILS in oral drug delivery.
Collapse
Affiliation(s)
- Renuka Suresh Managuli
- a Department of Pharmaceutics , Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal Karnataka State , India
| | - Sushil Yadaorao Raut
- a Department of Pharmaceutics , Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal Karnataka State , India
| | - Meka Sreenivasa Reddy
- a Department of Pharmaceutics , Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal Karnataka State , India
| | - Srinivas Mutalik
- a Department of Pharmaceutics , Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal Karnataka State , India
| |
Collapse
|
161
|
Bouallegui Y, Ben Younes R, Oueslati R, Sheehan D. Role of endocytotic uptake routes in impacting the ROS-related toxicity of silver nanoparticles to Mytilus galloprovincialis: A redox proteomic investigation. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 200:21-27. [PMID: 29705565 DOI: 10.1016/j.aquatox.2018.04.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/18/2018] [Accepted: 04/21/2018] [Indexed: 06/08/2023]
Abstract
Oxidative stress is often implicated in nanoparticle toxicity. Several studies have highlighted the role of internalization routes in determining nanotoxicity. Here, we investigate how two endocytotic mechanisms (clathrin- and caveolae-mediated) impact on redox balance in gill and digestive gland of the mussel, Mytilus galloprovincialis. Animals were exposed (for 3, 6 and 12 h) to two sizes of silver nanoparticles (AgNP: <50 nm and <100 nm) prior to and after blockade of two endocytic pathways (amantadine blocks clathrin-mediated endocytosis while nystatin blocks caveolae-mediated endocytosis). Redox-proteomic tools were used to determine effects. Our results demonstrate the ability of both sizes of AgNP (<50 and <100 nm) to cause protein thiol oxidation and/or protein carbonylation. However, blockade of endocytotic routes mitigated AgNP toxicity. Differential ROS-related toxicity of AgNP to mussel tissues seemed to be linked to tissue-specific mode of action requirements. Cell uptake mechanism strongly influences toxicity of AgNPs in this filter-feeder.
Collapse
Affiliation(s)
- Younes Bouallegui
- Research Unit of Immuno-Microbiology Environmental and Carcinogenesis, Sciences Faculty of Bizerte, University of Carthage, Tunisia.
| | - Ridha Ben Younes
- Research Unit of Immuno-Microbiology Environmental and Carcinogenesis, Sciences Faculty of Bizerte, University of Carthage, Tunisia
| | - Ridha Oueslati
- Research Unit of Immuno-Microbiology Environmental and Carcinogenesis, Sciences Faculty of Bizerte, University of Carthage, Tunisia
| | - David Sheehan
- Proteomic Research Group, School of Biochemistry and Cell Biology, University College Cork, Ireland; Dept of Chemistry, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates.
| |
Collapse
|
162
|
Wei Q, Huang C, Zhang Y, Zhao T, Zhao P, Butler P, Zhang S. Mechanotargeting: Mechanics-Dependent Cellular Uptake of Nanoparticles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707464. [PMID: 29797358 DOI: 10.1002/adma.201707464] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 04/07/2018] [Indexed: 05/24/2023]
Abstract
Targeted delivery of nanoparticle (NP)-based diagnostic and therapeutic agents to malignant cells and tissues has exclusively relied on chemotargeting, wherein NPs are surface-coated with ligands that specifically bind to overexpressed receptors on malignant cells. Here, it is demonstrated that cellular uptake of NPs can also be biased to malignant cells based on the differential mechanical states of cells, enabling mechanotargeting. Owing to mechanotransduction, cell lines (HeLa and HCT-8) cultured on hydrogels of various stiffness are directed into different stress states, measured by cellular force microscopies. In vitro NP delivery reveals that increases in cell stress suppress cellular uptake, counteracting the enhanced uptake that occurs with increases in exposed surface area of spread cells. Upon prolonged culture on stiff hydrogels, cohesive HCT-8 cell colonies undergo metastatic phenotypic change and disperse into individual malignant cells. The metastatic cells are of extremely low stress state and adopt an unspread, 3D morphology, resulting in several-fold higher uptake than the nonmetastatic counterparts. This study opens a new paradigm of harnessing mechanics for the design of future strategies in nanomedicine.
Collapse
Affiliation(s)
- Qiong Wei
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA, 16802, USA
| | - Changjin Huang
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA, 16802, USA
| | - Yao Zhang
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA, 16802, USA
| | - Tiankai Zhao
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA, 16802, USA
| | - Peng Zhao
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA, 16802, USA
| | - Peter Butler
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Sulin Zhang
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA, 16802, USA
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| |
Collapse
|
163
|
Lin LCW, Chattopadhyay S, Lin JC, Hu CMJ. Advances and Opportunities in Nanoparticle- and Nanomaterial-Based Vaccines against Bacterial Infections. Adv Healthc Mater 2018; 7:e1701395. [PMID: 29508547 DOI: 10.1002/adhm.201701395] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/22/2018] [Indexed: 02/06/2023]
Abstract
As the dawn of the postantibiotic era we approach, antibacterial vaccines are becoming increasingly important for managing bacterial infection and reducing the need for antibiotics. Despite the success of vaccination, vaccines remain unavailable for many pressing microbial diseases, including tuberculosis, chlamydia, and staphylococcus infections. Amid continuing research efforts in antibacterial vaccine development, the advancement of nanomaterial engineering has brought forth new opportunities in vaccine designs. With increasing knowledge in antibacterial immunity and immunologic adjuvants, innovative nanoparticles are designed to elicit the appropriate immune responses for effective antimicrobial defense. Rationally designed nanoparticles are demonstrated to overcome delivery barriers to shape the adaptive immunity. This article reviews the advances in nanoparticle- and nanomaterial-based antibacterial vaccines and summarizes the development of nanoparticulate adjuvants for immune potentiation against microbial pathogens. In addition, challenges and progress in ongoing antibacterial vaccine development are discussed to highlight the opportunities for future vaccine designs.
Collapse
Affiliation(s)
- Leon Chien-Wei Lin
- Institute of Biomedical Sciences; Academia Sinica; 128, Sec. 2, Academia Road Nangang District Taipei 11529 Taiwan
| | - Saborni Chattopadhyay
- Institute of Biomedical Sciences; Academia Sinica; 128, Sec. 2, Academia Road Nangang District Taipei 11529 Taiwan
| | - Jung-Chen Lin
- Institute of Biomedical Sciences; Academia Sinica; 128, Sec. 2, Academia Road Nangang District Taipei 11529 Taiwan
| | - Che-Ming Jack Hu
- Institute of Biomedical Sciences; Academia Sinica; 128, Sec. 2, Academia Road Nangang District Taipei 11529 Taiwan
| |
Collapse
|
164
|
Targeted Delivery of Cell Penetrating Peptide Virus-like Nanoparticles to Skin Cancer Cells. Sci Rep 2018; 8:8499. [PMID: 29855618 PMCID: PMC5981617 DOI: 10.1038/s41598-018-26749-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 05/18/2018] [Indexed: 01/19/2023] Open
Abstract
Skin cancer or cutaneous carcinoma, is a pre-eminent global public health problem with no signs of plateauing in its incidence. As the most common treatments for skin cancer, surgical resection inevitably damages a patient’s appearance, and chemotherapy has many side effects. Thus, the main aim of this study was to screen for a cell penetrating peptide (CPP) for the development of a targeting vector for skin cancer. In this study, we identified a CPP with the sequence NRPDSAQFWLHH from a phage displayed peptide library. This CPP targeted the human squamous carcinoma A431 cells through an interaction with the epidermal growth factor receptor (EGFr). Methyl-β-cyclodextrin (MβCD) and chlorpromazine hydrochloride (CPZ) inhibited the internalisation of the CPP into the A431 cells, suggesting the peptide entered the cells via clathrin-dependent endocytosis. The CPP displayed on hepatitis B virus-like nanoparticles (VLNPs) via the nanoglue successfully delivered the nanoparticles into A431 cells. The present study demonstrated that the novel CPP can serve as a ligand to target and deliver VLNPs into skin cancer cells.
Collapse
|
165
|
Preferential and Increased Uptake of Hydroxyl-Terminated PAMAM Dendrimers by Activated Microglia in Rabbit Brain Mixed Glial Culture. Molecules 2018; 23:molecules23051025. [PMID: 29702566 PMCID: PMC6102539 DOI: 10.3390/molecules23051025] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/18/2018] [Accepted: 04/20/2018] [Indexed: 01/05/2023] Open
Abstract
Polyamidoamine (PAMAM) dendrimers are multifunctional nanoparticles with tunable physicochemical features, making them promising candidates for targeted drug delivery in the central nervous system (CNS). Systemically administered dendrimers have been shown to localize in activated glial cells, which mediate neuroinflammation in the CNS. These dendrimers delivered drugs specifically to activated microglia, producing significant neurological improvements in multiple brain injury models, including in a neonatal rabbit model of cerebral palsy. To gain further insight into the mechanism of dendrimer cell uptake, we utilized an in vitro model of primary glial cells isolated from newborn rabbits to assess the differences in hydroxyl-terminated generation 4 PAMAM dendrimer (D4-OH) uptake by activated and non-activated glial cells. We used fluorescently-labelled D4-OH (D-Cy5) as a tool for investigating the mechanism of dendrimer uptake. D4-OH PAMAM dendrimer uptake was determined by fluorescence quantification using confocal microscopy and flow cytometry. Our results indicate that although microglial cells in the mixed cell population demonstrate early uptake of dendrimers in this in vitro system, activated microglia take up more dendrimer compared to resting microglia. Astrocytes showed delayed and limited uptake. We also illustrated the differences in mechanism of uptake between resting and activated microglia using different pathway inhibitors. Both resting and activated microglia primarily employed endocytotic pathways, which are enhanced in activated microglial cells. Additionally, we demonstrated that hydroxyl terminated dendrimers are taken up by primary microglia using other mechanisms including pinocytosis, caveolae, and aquaporin channels for dendrimer uptake.
Collapse
|
166
|
Walsh DP, Murphy RD, Panarella A, Raftery RM, Cavanagh B, Simpson JC, O'Brien FJ, Heise A, Cryan SA. Bioinspired Star-Shaped Poly(l-lysine) Polypeptides: Efficient Polymeric Nanocarriers for the Delivery of DNA to Mesenchymal Stem Cells. Mol Pharm 2018; 15:1878-1891. [PMID: 29590755 DOI: 10.1021/acs.molpharmaceut.8b00044] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The field of tissue engineering is increasingly recognizing that gene therapy can be employed for modulating in vivo cellular response thereby guiding tissue regeneration. However, the field lacks a versatile and biocompatible gene delivery platform capable of efficiently delivering transgenes to mesenchymal stem cells (MSCs), a cell type often refractory to transfection. Herein, we describe the extensive and systematic exploration of three architectural variations of star-shaped poly(l-lysine) polypeptide (star-PLL) with varying number and length of poly(l-lysine) arms as potential nonviral gene delivery vectors for MSCs. We demonstrate that star-PLL vectors are capable of self-assembling with pDNA to form stable, cationic nanomedicines. Utilizing high content screening, live cell imaging, and mechanistic uptake studies we confirm the intracellular delivery of pDNA by star-PLLs to MSCs is a rapid process, which likely proceeds via a clathrin-independent mechanism. We identify a star-PLL composition with 64 poly(l-lysine) arms and five l-lysine subunits per arm as a particularly efficient vector that is capable of delivering both reporter genes and the therapeutic transgenes bone morphogenetic protein-2 and vascular endothelial growth factor to MSCs. This composition facilitated a 1000-fold increase in transgene expression in MSCs compared to its linear analogue, linear poly(l-lysine). Furthermore, it demonstrated comparable transgene expression to the widely used vector polyethylenimine using a lower pDNA dose with significantly less cytotoxicity. Overall, this study illustrates the ability of the star-PLL vectors to facilitate efficient, nontoxic nucleic acid delivery to MSCs thereby functioning as an innovative nanomedicine platform for tissue engineering applications.
Collapse
Affiliation(s)
- David P Walsh
- Drug Delivery & Advanced Materials Team, School of Pharmacy , RCSI , Dublin , Ireland.,Tissue Engineering Research Group, Department of Anatomy , RCSI , Dublin , Ireland.,Trinity Centre for Bioengineering , Trinity College Dublin (TCD) , Dublin , Ireland
| | - Robert D Murphy
- Pharmaceutical and Medicinal Chemistry , RCSI , Dublin , Ireland
| | - Angela Panarella
- School of Biology and Environmental Science , University College Dublin , Dublin , Ireland
| | - Rosanne M Raftery
- Tissue Engineering Research Group, Department of Anatomy , RCSI , Dublin , Ireland.,Trinity Centre for Bioengineering , Trinity College Dublin (TCD) , Dublin , Ireland
| | | | - Jeremy C Simpson
- School of Biology and Environmental Science , University College Dublin , Dublin , Ireland
| | - Fergal J O'Brien
- Tissue Engineering Research Group, Department of Anatomy , RCSI , Dublin , Ireland.,Trinity Centre for Bioengineering , Trinity College Dublin (TCD) , Dublin , Ireland
| | - Andreas Heise
- Pharmaceutical and Medicinal Chemistry , RCSI , Dublin , Ireland
| | - Sally-Ann Cryan
- Drug Delivery & Advanced Materials Team, School of Pharmacy , RCSI , Dublin , Ireland.,Tissue Engineering Research Group, Department of Anatomy , RCSI , Dublin , Ireland.,Trinity Centre for Bioengineering , Trinity College Dublin (TCD) , Dublin , Ireland
| |
Collapse
|
167
|
Dalmau-Mena I, Del Pino P, Pelaz B, Cuesta-Geijo MÁ, Galindo I, Moros M, de la Fuente JM, Alonso C. Nanoparticles engineered to bind cellular motors for efficient delivery. J Nanobiotechnology 2018; 16:33. [PMID: 29602307 PMCID: PMC5877387 DOI: 10.1186/s12951-018-0354-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 03/19/2018] [Indexed: 11/17/2022] Open
Abstract
Background Dynein is a cytoskeletal molecular motor protein that transports cellular cargoes along microtubules. Biomimetic synthetic peptides designed to bind dynein have been shown to acquire dynamic properties such as cell accumulation and active intra- and inter-cellular motion through cell-to-cell contacts and projections to distant cells. On the basis of these properties dynein-binding peptides could be used to functionalize nanoparticles for drug delivery applications. Results Here, we show that gold nanoparticles modified with dynein-binding delivery sequences become mobile, powered by molecular motor proteins. Modified nanoparticles showed dynamic properties, such as travelling the cytosol, crossing intracellular barriers and shuttling the nuclear membrane. Furthermore, nanoparticles were transported from one cell to another through cell-to-cell contacts and quickly spread to distant cells through cell projections. Conclusions The capacity of these motor-bound nanoparticles to spread to many cells and increasing cellular retention, thus avoiding losses and allowing lower dosage, could make them candidate carriers for drug delivery. Electronic supplementary material The online version of this article (10.1186/s12951-018-0354-1) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Inmaculada Dalmau-Mena
- Dpt. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de la Coruña km 7.5, 28040, Madrid, Spain
| | - Pablo Del Pino
- Instituto de Nanociencia de Aragón, Universidad de Zaragoza, Mariano Esquillor, s/n, 50018, Zaragoza, Spain.,Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Física de Partículas, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Beatriz Pelaz
- Instituto de Nanociencia de Aragón, Universidad de Zaragoza, Mariano Esquillor, s/n, 50018, Zaragoza, Spain.,Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Física de Partículas, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Miguel Ángel Cuesta-Geijo
- Dpt. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de la Coruña km 7.5, 28040, Madrid, Spain
| | - Inmaculada Galindo
- Dpt. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de la Coruña km 7.5, 28040, Madrid, Spain
| | - María Moros
- Instituto de Nanociencia de Aragón, Universidad de Zaragoza, Mariano Esquillor, s/n, 50018, Zaragoza, Spain
| | - Jesús M de la Fuente
- Aragon Materials Science Institute (ICMA), CSIC-University of Zaragoza and CIBER-BBN, C/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Covadonga Alonso
- Dpt. Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de la Coruña km 7.5, 28040, Madrid, Spain.
| |
Collapse
|
168
|
Zhu X, Ji X, Kong N, Chen Y, Mahmoudi M, Xu X, Ding L, Tao W, Cai T, Li Y, Gan T, Barrett A, Bharwani Z, Chen H, Farokhzad OC. Intracellular Mechanistic Understanding of 2D MoS 2 Nanosheets for Anti-Exocytosis-Enhanced Synergistic Cancer Therapy. ACS NANO 2018; 12:2922-2938. [PMID: 29406760 PMCID: PMC6097229 DOI: 10.1021/acsnano.8b00516] [Citation(s) in RCA: 138] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Emerging two-dimensional (2D) nanomaterials, such as transition-metal dichalcogenide (TMD) nanosheets (NSs), have shown tremendous potential for use in a wide variety of fields including cancer nanomedicine. The interaction of nanomaterials with biosystems is of critical importance for their safe and efficient application. However, a cellular-level understanding of the nano-bio interactions of these emerging 2D nanomaterials ( i. e., intracellular mechanisms) remains elusive. Here we chose molybdenum disulfide (MoS2) NSs as representative 2D nanomaterials to gain a better understanding of their intracellular mechanisms of action in cancer cells, which play a significant role in both their fate and efficacy. MoS2 NSs were found to be internalized through three pathways: clathrin → early endosomes → lysosomes, caveolae → early endosomes → lysosomes, and macropinocytosis → late endosomes → lysosomes. We also observed autophagy-mediated accumulation in the lysosomes and exocytosis-induced efflux of MoS2 NSs. Based on these findings, we developed a strategy to achieve effective and synergistic in vivo cancer therapy with MoS2 NSs loaded with low doses of drug through inhibiting exocytosis pathway-induced loss. To the best of our knowledge, this is the first systematic experimental report on the nano-bio interaction of 2D nanomaterials in cells and their application for anti-exocytosis-enhanced synergistic cancer therapy.
Collapse
Affiliation(s)
- Xianbing Zhu
- School of Life Sciences, Tsinghua University, Beijing 100084, China
- Department of Biochemistry, Rosalind and Morris Goodman Cancer Research Center, McGill University, Montreal, Quebec H3A 1A3, Canada
| | - Xiaoyuan Ji
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Na Kong
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310000, China
| | - Yunhan Chen
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Morteza Mahmoudi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Xiaoding Xu
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Li Ding
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Wei Tao
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Ting Cai
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yujing Li
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Tian Gan
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Austin Barrett
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Zameer Bharwani
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Hongbo Chen
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Omid C. Farokhzad
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| |
Collapse
|
169
|
Sun Q, Ishii T, Kanehira K, Sato T, Taniguchi A. Uniform TiO 2 nanoparticles induce apoptosis in epithelial cell lines in a size-dependent manner. Biomater Sci 2018; 5:1014-1021. [PMID: 28338134 DOI: 10.1039/c6bm00946h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The size of titanium dioxide (TiO2) nanoparticles is a vital parameter that determines their cytotoxicity. However, most reported studies have employed irregular shapes and sizes of TiO2 nanoparticles, as it is difficult to produce nanoparticles of suitable sizes for research. We produced good model TiO2 nanoparticles of uniform shape and size for use in studying their cytotoxicity. In this work, spherical, uniform polyethylene glycol-modified TiO2 (TiO2-PEG) nanoparticles of differing sizes (100, 200, and 300 nm) were prepared using the sol-gel method. A size-dependent decrease in cell viability was observed with increasing nanoparticle size. Furthermore, apoptosis was found to be positively associated with nanoparticle size, as evidenced by an increase in caspase-3 activity with increasing nanoparticle size. Larger nanoparticles exhibited higher cellular uptake, suggesting that larger nanoparticles more strongly induce apoptosis. In addition, the cellular uptake of different sizes of nanoparticles was energy dependent, suggesting that there are size-dependent uptake pathways. We found that 100 and 200 nm (but not 300 nm) nanoparticles were taken up via clathrin-mediated endocytosis. These results utilizing uniform nanoparticles suggest that the size-dependent cytotoxicity of nanoparticles involves active cellular uptake, caspase-3 activation, and apoptosis in the epithelial cell line (NCI-H292). These findings will hopefully aid in the future design and safe use of nanoparticles.
Collapse
Affiliation(s)
- Qingqing Sun
- Cellular Functional Nanobiomaterials Group, Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
| | | | | | | | | |
Collapse
|
170
|
Moss DM, Curley P, Kinvig H, Hoskins C, Owen A. The biological challenges and pharmacological opportunities of orally administered nanomedicine delivery. Expert Rev Gastroenterol Hepatol 2018; 12:223-236. [PMID: 29088978 DOI: 10.1080/17474124.2018.1399794] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nano-scale formulations are being developed to improve the delivery of orally administered medicines, and the interactions between nanoformulations and the gastrointestinal luminal, mucosal and epithelial environment is currently being investigated. The mucosal surface of the gastrointestinal tract is capable of trapping and eliminating large particles and pathogens as part of the natural defences of the body, it is becoming clearer that nanoformulation properties such as particle size, charge, and shape, as well as mucous properties such as viscoelasticity, thickness, density, and turn-over time are all relevant to these interactions. However, progress has been slow to utilise this information to produce effective mucous-penetrating particles. Areas covered: This review focuses on delivery method of nanomedicines both into and across the gastrointestinal mucosal surface, and aims to summarise the biological barriers that exist to successful oral nanomedicine delivery and how these barriers may be investigated and overcome. Expert commentary: Despite successes in the laboratory, no nanotechnology-enabled products are currently in clinical use which either specifically target the intestinal mucous surface or cross the epithelial barrier intact. New nanomedicine-based treatments of local diseases (intestinal cancer, inflammation, infection) and systemic diseases are advancing towards clinical use, and offer genuine opportunities to improve therapy.
Collapse
Affiliation(s)
- Darren Michael Moss
- a School of Pharmacy, Faculty of Medicine and Health Sciences , Keele University , Keele , UK
| | - Paul Curley
- b Molecular and Clinical Pharmacology, Institute of Translational Medicine , University of Liverpool , Liverpool , UK
| | - Hannah Kinvig
- b Molecular and Clinical Pharmacology, Institute of Translational Medicine , University of Liverpool , Liverpool , UK
| | - Clare Hoskins
- a School of Pharmacy, Faculty of Medicine and Health Sciences , Keele University , Keele , UK
| | - Andrew Owen
- b Molecular and Clinical Pharmacology, Institute of Translational Medicine , University of Liverpool , Liverpool , UK
| |
Collapse
|
171
|
Alshehri A, Grabowska A, Stolnik S. Pathways of cellular internalisation of liposomes delivered siRNA and effects on siRNA engagement with target mRNA and silencing in cancer cells. Sci Rep 2018; 8:3748. [PMID: 29491352 PMCID: PMC5830644 DOI: 10.1038/s41598-018-22166-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 02/19/2018] [Indexed: 01/01/2023] Open
Abstract
Design of an efficient delivery system is a generally recognised bottleneck in translation of siRNA technology into clinic. Despite research efforts, cellular processes that determine efficiency of siRNA silencing achieved by different delivery formulations remain unclear. Here, we investigated the mechanism(s) of cellular internalisation of a model siRNA-loaded liposome system in a correlation to the engagement of delivered siRNA with its target and consequent silencing by adopting siRNA molecular beacon technology. Probing of cellular internalisation pathways by a panel of pharmacological inhibitors indicated that clathrin-mediated (dynamin-dependent) endocytosis, macropinocytosis (dynamine independent), and cell membrane cholesterol dependent process(es) (clathrin and caveolea-independent) all play a role in the siRNA-liposomes internalization. The inhibition of either of these entry routes was, in general, mirrored by a reduction in the level of siRNA engagement with its target mRNA, as well as in a reduction of the target gene silencing. A dramatic increase in siRNA engagement with its target RNA was observed on disruption of endosomal membrane (by chloroquine), accompanied with an increased silencing. The work thus illustrates that employing molecular beacon siRNA technology one can start to assess the target RNA engagement - a stage between initial cellular internalization and final gene silencing of siRNA delivery systems.
Collapse
Affiliation(s)
- Abdullah Alshehri
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Anna Grabowska
- Cancer Biology, Division of Cancer and Stem Cells, School of Medicine, Queen's Medical Centre, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Snow Stolnik
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK.
| |
Collapse
|
172
|
Chetwynd AJ, Guggenheim EJ, Briffa SM, Thorn JA, Lynch I, Valsami-Jones E. Current Application of Capillary Electrophoresis in Nanomaterial Characterisation and Its Potential to Characterise the Protein and Small Molecule Corona. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E99. [PMID: 29439415 PMCID: PMC5853730 DOI: 10.3390/nano8020099] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 01/22/2018] [Accepted: 01/30/2018] [Indexed: 12/11/2022]
Abstract
Due to the increasing use and production of nanomaterials (NMs), the ability to characterise their physical/chemical properties quickly and reliably has never been so important. Proper characterisation allows a thorough understanding of the material and its stability, and is critical to establishing dose-response curves to ascertain risks to human and environmental health. Traditionally, methods such as Transmission Electron Microscopy (TEM), Field Flow Fractionation (FFF) and Dynamic Light Scattering (DLS) have been favoured for size characterisation, due to their wide-availability and well-established protocols. Capillary Electrophoresis (CE) offers a faster and more cost-effective solution for complex dispersions including polydisperse or non-spherical NMs. CE has been used to rapidly separate NMs of varying sizes, shapes, surface modifications and compositions. This review will discuss the literature surrounding the CE separation techniques, detection and NM characteristics used for the analysis of a wide range of NMs. The potential of combining CE with mass spectrometry (CE-MS) will also be explored to further expand the characterisation of NMs, including the layer of biomolecules adsorbed to the surface of NMs in biological or environmental compartments, termed the acquired biomolecule corona. CE offers the opportunity to uncover new/poorly characterised low abundance and polar protein classes due to the high ionisation efficiency of CE-MS. Furthermore, the possibility of using CE-MS to characterise the poorly researched small molecule interactions within the NM corona is discussed.
Collapse
Affiliation(s)
- Andrew J. Chetwynd
- AB Sciex UK Ltd., Phoenix House, Lakeside Drive, Warrington, Cheshire WA1 1RX, UK;
| | - Emily J. Guggenheim
- School of Geography Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (E.J.G.); (S.M.B.); (E.V.-J.)
| | - Sophie M. Briffa
- School of Geography Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (E.J.G.); (S.M.B.); (E.V.-J.)
| | - James A. Thorn
- AB Sciex UK Ltd., Phoenix House, Lakeside Drive, Warrington, Cheshire WA1 1RX, UK;
| | - Iseult Lynch
- School of Geography Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (E.J.G.); (S.M.B.); (E.V.-J.)
| | - Eugenia Valsami-Jones
- School of Geography Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (E.J.G.); (S.M.B.); (E.V.-J.)
| |
Collapse
|
173
|
Vilaça N, Totovao R, Prasetyanto EA, Miranda-Gonçalves V, Morais-Santos F, Fernandes R, Figueiredo F, Bañobre-López M, Fonseca AM, De Cola L, Baltazar F, Neves IC. Internalization studies on zeolite nanoparticles using human cells. J Mater Chem B 2018; 6:469-476. [PMID: 32254526 DOI: 10.1039/c7tb02534c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Zeolites are crystalline porous materials with a regular framework which have non-toxic effects on a variety of human cell lines and have been explored for cell imaging and drug delivery. Understanding the interaction between zeolite nanoparticles and cells is imperative for improving their potentialities, since the process of internalization of these particles is still poorly understood. In this study, the intracellular trafficking and internalization kinetics of zeolite L into breast cancer cells and normal epithelial mammary cells were analysed using scanning electron microscopy (SEM), confocal microscopy and transmission electron microscopy (TEM). We also studied the involvement of endocytic pathways using two pharmacological inhibitors, chlorpromazine and dynasore. Zeolite nanoparticles were taken up by both cell types and the cellular uptake was fast, and started immediately after 5 min of incubation. Interestingly, the uptake was dependent on the cell type since in breast cancer cells it was faster and more efficient, with a higher number of nanoparticles being internalized by cancer cells over time, compared to that in the epithelial mammary cells. TEM results showed that the internalized nanoparticles were mainly localized in the cell vacuoles. The data obtained upon using endocytic pharmacological inhibitors suggest that the zeolite L uptake is mediated by caveolin.
Collapse
Affiliation(s)
- Natália Vilaça
- Centre of Chemistry, Chemistry Department, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
174
|
Chen Z, Krishnamachary B, Penet MF, Bhujwalla ZM. Acid-degradable Dextran as an Image Guided siRNA Carrier for COX-2 Downregulation. Am J Cancer Res 2018; 8:1-12. [PMID: 29290789 PMCID: PMC5743456 DOI: 10.7150/thno.21052] [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: 05/16/2017] [Accepted: 09/27/2017] [Indexed: 01/10/2023] Open
Abstract
Purpose: Effective in vivo delivery of siRNA to silence genes is a highly sought-after goal in the treatment of multiple diseases. Cyclooxygenase-2 (COX-2) is a major mediator of inflammation and its effective and specific downregulation has been of major interest to treat conditions ranging from auto-immune diseases to gastric inflammation and cancer. Here we developed a novel and efficient method to produce a multiple imaging reporter labeled cationic dextran nanopolymer with cleavable positive charge groups for COX-2 siRNA delivery. Methods: Small molecules containing amine groups were conjugated to the dextran scaffold through acetal bonds that were cleaved in weak acid conditions. With multiple imaging reporters located on different regions of the nanopolymer, cleavage of acetal bonds was visualized and quantified by imaging, for the first time, in cancer cells and tumors. Results: The biocompatibility of dextran and the rapid cleavage and release of amine groups minimized proinflammatory side effects and COX-2 induction observed with other siRNA carriers, to successfully achieve COX-2 downregulation in cancer cells and tumors. Imaging results confirmed that this nanoplex, consisting of the dextran nanopolymer with COX-2 siRNA, accumulated in tumors, and the amine functional groups were rapidly cleaved in cancer cells and tumors. Along with effective downregulation of COX-2, we also demonstrated, for the first time, effective downregulation of its major product prostaglandin E2 (PGE2). Conclusions: We successfully developed an efficient method to produce an acid-degradable dextran nanopolymer containing cleavable amine groups as the siRNA carrier. Because of its biocompatibility, this degradable dextran delivered COX-2 siRNA within tumors and efficiently downregulated COX-2 expression.
Collapse
|
175
|
Zhao J, Stenzel MH. Entry of nanoparticles into cells: the importance of nanoparticle properties. Polym Chem 2018. [DOI: 10.1039/c7py01603d] [Citation(s) in RCA: 228] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Knowledge of the interactions between nanoparticles (NPs) and cell membranes is of great importance for the design of safe and efficient nanomedicines.
Collapse
Affiliation(s)
- Jiacheng Zhao
- Centre for Advanced Macromolecular Design
- The University of New South Wales
- Sydney
- Australia
- School of Chemical Engineering
| | - Martina H. Stenzel
- Centre for Advanced Macromolecular Design
- The University of New South Wales
- Sydney
- Australia
- School of Chemistry
| |
Collapse
|
176
|
Bouallegui Y, Ben Younes R, Bellamine H, Oueslati R. Histopathological indices and inflammatory response in the digestive gland of the mussel Mytilus galloprovincialis as biomarker of immunotoxicity to silver nanoparticles. Biomarkers 2017; 23:1-11. [PMID: 29166788 DOI: 10.1080/1354750x.2017.1409803] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Histopathological assessments approaches in bivalves have become an important tool in environmental toxicology. This study seeks to develop a quantitative histopathological index (Ih) and inflammation score as biomarkers in the aim to assess the health status of nanoparticles exposed mussels. METHODS Digestive gland hematoxylin and eosin (H&E) stained sections from Mytilus galloprovincialis were assessed after in vivo exposure (for 3, 6 and 12 h) to silver nanoparticles (Ag-NPs < 50 nm and Ag-NPs < 100 nm) prior and after manipulating the potential uptake pathways (clathrin- and caveolae-mediated endocytosis) using amantadine and nystatin as blockers. Quantitative models evaluate the impacts of nanoparticles size, as well as their uptake routes within different time of exposure on the inflammation intensity, the digestive tubules histomorphometry and the histopathological indices. RESULTS Silver nanoparticles clearly induced histopathological alterations in digestive gland (maximum inflammation 2.75 with AgNP < 100 nm [p < 0.05]; significant Ih with AgNP < 50 nm and AgNP < 100 nm at different time-points [p < 0.05]). Significant Ih were recorded after uptake routes were blockade: AgNP < 50 nm + nystatin and AgNP < 100 nm + amantadine; [p < 0.05] all time-points. CONCLUSIONS Histopathological assessments showed to be promising tool in nanotoxicity which seems to depend on nanoparticles size, exposure time and interestingly to uptake routes. It was not clear: is it the length of exposure or the size of particles is more impactful.
Collapse
Affiliation(s)
- Younes Bouallegui
- a Research Unit of Immuno-Microbiology Environmental and Cancerogensis, Sciences Faculty of Bizerte , University of Carthage , Tunisia
| | - Ridha Ben Younes
- a Research Unit of Immuno-Microbiology Environmental and Cancerogensis, Sciences Faculty of Bizerte , University of Carthage , Tunisia
| | - Houda Bellamine
- b Pathological Anatomy Department , Regional Hospital of Menzel Bourguiba , Bizerte , Tunisia
| | - Ridha Oueslati
- a Research Unit of Immuno-Microbiology Environmental and Cancerogensis, Sciences Faculty of Bizerte , University of Carthage , Tunisia
| |
Collapse
|
177
|
Kumawat MK, Thakur M, Gurung RB, Srivastava R. Graphene Quantum Dots for Cell Proliferation, Nucleus Imaging, and Photoluminescent Sensing Applications. Sci Rep 2017; 7:15858. [PMID: 29158566 PMCID: PMC5696518 DOI: 10.1038/s41598-017-16025-w] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 11/06/2017] [Indexed: 01/22/2023] Open
Abstract
We report a simple one-pot microwave assisted "green synthesis" of Graphene Quantum Dots (GQDs) using grape seed extract as a green therapeutic carbon source. These GQDs readily self-assemble, hereafter referred to as "self-assembled" GQDs (sGQDs) in the aqueous medium. The sGQDs enter via caveolae and clathrin-mediated endocytosis and target themselves into cell nucleus within 6-8 h without additional assistance of external capping/targeting agent. The tendency to self-localize themselves into cell nucleus also remains consistent in different cell lines such as L929, HT-1080, MIA PaCa-2, HeLa, and MG-63 cells, thereby serving as a nucleus labelling agent. Furthermore, the sGQDs are highly biocompatible and act as an enhancer in cell proliferation in mouse fibroblasts as confirmed by in vitro wound scratch assay and cell cycle analysis. Also, photoluminescence property of sGQDs (lifetime circa (ca.) 10 ns) was used for optical pH sensing application. The sGQDs show linear, cyclic and reversible trend in its fluorescence intensity between pH 3 and pH 10 (response time: ~1 min, sensitivity -49.96 ± 3.5 mV/pH) thereby serving as a good pH sensing agent. A simple, cost-effective, scalable and green synthetic approach based sGQDs can be used to develop selective organelle labelling, nucleus targeting in theranostics, and optical sensing probes.
Collapse
Affiliation(s)
- Mukesh Kumar Kumawat
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Mukeshchand Thakur
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Raju B Gurung
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Rohit Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India.
| |
Collapse
|
178
|
Felix LC, Ortega VA, Goss GG. Cellular uptake and intracellular localization of poly (acrylic acid) nanoparticles in a rainbow trout (Oncorhynchus mykiss) gill epithelial cell line, RTgill-W1. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 192:58-68. [PMID: 28917946 DOI: 10.1016/j.aquatox.2017.09.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 09/04/2017] [Accepted: 09/06/2017] [Indexed: 06/07/2023]
Abstract
The ever-growing production of engineered nanoparticles (NPs) for use in many agricultural, commercial, consumer, and industrial applications will lead to their accidental or intentional release into the environment. Potential routes of environmental exposure include manufacturing or transport spills, disposal of NP-containing products down the drain and/or in landfills, as well as direct usage on agricultural land. Therefore, NPs will inevitably contaminate aquatic environments and interact with resident organisms. However, there is limited information regarding the mechanisms that regulate NP transport into fish from the environment. Thus, our primary objective was to elucidate the mechanism(s) underlying cellular uptake and intracellular fate of 3-9nm poly (acrylic acid) NPs loaded with the fluorescent dye Nile red using a rainbow trout (Oncorhynchus mykiss) gill epithelial cell line (RTgill-W1). In vitro measurements with NP-treated RTgill-W1 cells were carried out using a combination of laser scanning confocal microscopy, flow cytometry, fluorescent biomarkers (transferrin, cholera toxin B subunit, and dextran), endocytosis inhibitors (chlorpromazine, genistein, and wortmannin), and stains (4', 6-diamidino-2-phenylindole, Hoechst 33342, CellMask Deep Red, and LysoTracker Yellow). Clathrin-mediated endocytosis (CME), caveolae-mediated endocytosis and macropinocytosis pathways were active in RTgill-W1 cells, and these pathways were exploited by the non-cytotoxic NPs to enter these cells. We have demonstrated that NP uptake by RTgill-W1 cells was impeded when clathrin-coated pit formation was blocked by chlorpromazine. Furthermore, colocalization analysis revealed a moderate positive relationship between NPs and LysoTracker Yellow-positive lysosomal compartments indicating that CME was the dominant operative mechanism involved in NP internalization by RTgill-W1 cells. Overall, our results clearly show that fish gill epithelial cells internalized NPs via energy-dependent endocytotic processes. This study enhances our understanding of complex NP-cell interactions and the results obtained in vitro imply a potential risk to aquatic organisms.
Collapse
Affiliation(s)
- Lindsey C Felix
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada.
| | - Van A Ortega
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada.
| | - Greg G Goss
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada; National Institute for Nanotechnology, National Research Council of Canada, Edmonton, Alberta, T6G 2M9, Canada.
| |
Collapse
|
179
|
Orellana-Tavra C, Haddad S, Marshall RJ, Abánades Lázaro I, Boix G, Imaz I, Maspoch D, Forgan RS, Fairen-Jimenez D. Tuning the Endocytosis Mechanism of Zr-Based Metal-Organic Frameworks through Linker Functionalization. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35516-35525. [PMID: 28925254 PMCID: PMC5663390 DOI: 10.1021/acsami.7b07342] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 09/19/2017] [Indexed: 05/21/2023]
Abstract
A critical bottleneck for the use of metal-organic frameworks (MOFs) as drug delivery systems has been allowing them to reach their intracellular targets without being degraded in the acidic environment of the lysosomes. Cells take up particles by endocytosis through multiple biochemical pathways, and the fate of these particles depends on these routes of entry. Here, we show the effect of functional group incorporation into a series of Zr-based MOFs on their endocytosis mechanisms, allowing us to design an efficient drug delivery system. In particular, naphthalene-2,6-dicarboxylic acid and 4,4'-biphenyldicarboxylic acid ligands promote entry through the caveolin-pathway, allowing the particles to avoid lysosomal degradation and be delivered into the cytosol and enhancing their therapeutic activity when loaded with drugs.
Collapse
Affiliation(s)
- Claudia Orellana-Tavra
- Adsorption &
Advanced Materials Laboratory (AAML), Department of Chemical Engineering
and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Salame Haddad
- Adsorption &
Advanced Materials Laboratory (AAML), Department of Chemical Engineering
and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Ross J. Marshall
- WestCHEM School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K.
| | - Isabel Abánades Lázaro
- WestCHEM School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K.
| | - Gerard Boix
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Inhar Imaz
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Daniel Maspoch
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Ross S. Forgan
- WestCHEM School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, U.K.
| | - David Fairen-Jimenez
- Adsorption &
Advanced Materials Laboratory (AAML), Department of Chemical Engineering
and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| |
Collapse
|
180
|
Yang G, Wang X, Fu S, Tang R, Wang J. pH-triggered chitosan nanogels via an ortho ester-based linkage for efficient chemotherapy. Acta Biomater 2017; 60:232-243. [PMID: 28479490 DOI: 10.1016/j.actbio.2017.05.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 04/21/2017] [Accepted: 05/04/2017] [Indexed: 11/26/2022]
Abstract
We report on new types of chitosan-based nanogels via an ortho ester-based linkage, used as drug carriers for efficient chemotherapy. First, we synthesized a novel diacrylamide containing ortho ester (OEAM) as an acid-labile cross-linker. Subsequently, methacrylated succinyl-chitosan (MASCS) was prepared and polymerized with OEAM at different molar ratios to give a series of pH-triggered MASCS nanogels. Doxorubicin (DOX) as a model anticancer drug was loaded into MASCS nanogels with a loading content of 16.5%. As expected, with the incorporation of ortho ester linkages, these nanogels showed pH-triggered degradation and drug release at acidic pH values. In vitro cellular uptake shows that the DOX-loaded nanogels could be preferentially internalized by two-dimensional (2D) cells and three-dimensional (3D) multicellular spheroids (MCs), resulting in higher inhibition of the proliferation of tumor cells. In vivo biodistribution and anti-tumor effect were determined in H22 tumor-bearing mice, and the results demonstrate that the acid-labile MASCS nanogels can significantly prolong the blood circulation time of DOX and improve the accumulation in tumor areas, leading to higher therapeutic efficacy. STATEMENT OF SIGNIFICANCE We designed new pH-triggered chitosan nanogels via an ortho ester-based cross-linker for efficient drug-loading and chemotherapy. These drug-loaded nanogels exhibit excellent pH-triggered drug release behavior due to the degradation of ortho ester linkages in mildly acidic environments. In vitro and in vivo results demonstrate that the nanogels could be efficiently internalized by 2D cells and 3D-MCs, improve drug concentration in solid tumors, and lead to higher therapeutic efficacy. To the best of our knowledge, this is the first report on using an ortho ester-based cross-linker to prepare pH-triggered chitosan nanogels as tumor carriers, which may provide a potential route for improved safety and to increase the therapeutic efficacy of anticancer therapy.
Collapse
|
181
|
Intracellular Colocalization of Influenza Viral RNA and Rab11A Is Dependent upon Microtubule Filaments. J Virol 2017; 91:JVI.01179-17. [PMID: 28724771 PMCID: PMC5599730 DOI: 10.1128/jvi.01179-17] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 07/13/2017] [Indexed: 12/31/2022] Open
Abstract
Influenza A virus (IAV) consists of eight viral RNA (vRNA) segments that are replicated in the host cell nucleus and transported to the plasma membrane for packaging into progeny virions. We have previously proposed a model where subcomplexes of vRNA are exported from the nucleus and assembled en route to the plasma membrane. However, the role of host cytoskeletal proteins in the cytoplasmic assembly of IAV vRNA segments remains unknown. Previous studies have suggested that IAV vRNA segments are transported via Rab11A-containing recycling endosomes (RE) and use both microtubules (MT) and actin. Rab11A RE transport primarily along MT; therefore, investigation of the role of MT in vRNA assembly is warranted. We explored the role of MT in vRNA assembly and replication by using multiple IAV strains in various cell types, including primary human airway epithelial cells. We observed that Rab11A localization was altered in the presence of MT-depolymerizing drugs, but growth of IAV in all of the cell types tested was unchanged. Fluorescent in situ hybridization was performed to determine the role of MT in the assembly of multiple vRNA segments. Unexpectedly, we found that vRNA-vRNA association in cytoplasmic foci was independent of MT. Given the disparity of localization between Rab11A and vRNA segments in the absence of intact MT filaments, we analyzed the three-dimensional spatial relationship between Rab11A and vRNA in the cytoplasm of infected cells. We found that Rab11A and vRNA colocalization is dependent upon dynamic MT filaments. Taken together, our data suggest that cytoplasmic transport of influenza vRNA may include a Rab11A RE-independent mechanism. IMPORTANCE IAV infections cause a large public health burden through seasonal epidemics and sporadic pandemics. Pandemic IAVs emerge through reassortment of vRNA in animal or human hosts. Elucidation of the mechanism of intracellular dynamics of IAV assembly is necessary to understand reassortment. Our results describing the role of MT in vRNA transport and assembly expand upon previous studies characterizing vRNA assembly. This study is the first to assess the role of MT in influenza virus replication in human bronchial airway epithelial cells. In addition, we present novel data on the role of MT in facilitating the association between distinct vRNA segments. Interestingly, our results suggest that progressive assembly of vRNA segments may be cell type dependent and that vRNA may be transported through the cytoplasm without Rab11A RE in the absence of intact MT. These results enhance our understanding of vRNA assembly and the role of cytoskeletal proteins in that process.
Collapse
|
182
|
Khurana RK, Beg S, Burrow AJ, Vashishta RK, Katare OP, Kaur S, Kesharwani P, Singh KK, Singh B. Enhancing biopharmaceutical performance of an anticancer drug by long chain PUFA based self-nanoemulsifying lipidic nanomicellar systems. Eur J Pharm Biopharm 2017; 121:42-60. [PMID: 28887099 DOI: 10.1016/j.ejpb.2017.09.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/22/2017] [Accepted: 09/02/2017] [Indexed: 12/18/2022]
Abstract
The aim of this study was to develop polyunsaturated fatty acid (PUFA) long chain glyceride (LCG) enriched self-nanoemulsifying lipidic nanomicelles systems (SNELS) for augmenting lymphatic uptake and enhancing oral bioavailability of docetaxel and compare its biopharmaceutical performance with a medium-chain fatty acid glyceride (MCG) SNELS. Equilibrium solubility and pseudo ternary phase studies facilitated the selection of suitable LCG and MCG. The critical material attributes (CMAs) and critical process parameters (CPPs) were earmarked using Placket-Burman Design (PBD) and Fractional Factorial Design (FFD) for LCG- and MCG-SNELS respectively, and nano micelles were subsequently optimized using I- and D-optimal designs. Desirability function unearthed the optimized SNELS with Temul <5min, Dnm <100nm, Rel15min >85% and Perm45min >75%. The SNELS demonstrated efficient biocompatibility and energy dependent cellular uptake, reduced P-gp efflux and increased permeability using bi-directional Caco-2 model. Optimal PUFA enriched LCG-SNELS exhibited distinctly superior permeability and absorption parameters during ex vivo permeation, in situ single pass intestinal perfusion, lymphatic uptake and in vivo pharmacokinetic studies over MCG-SNELS.
Collapse
Affiliation(s)
- Rajneet Kaur Khurana
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Sarwar Beg
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Andrea Julie Burrow
- School of Pharmacy and Biomedical Sciences, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Rakesh K Vashishta
- Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - O P Katare
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Satvinder Kaur
- GHG Khalsa of Pharmacy, Gurusar Sadhar, Ludhiana 141104, India
| | - Prashant Kesharwani
- Department of Pharmaceutical Technology, International Medical University, Bukit Jalil, Kuala Lumpur, Malaysia; Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, UP 226031, India
| | - Kamalinder K Singh
- School of Pharmacy and Biomedical Sciences, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom.
| | - Bhupinder Singh
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Chandigarh 160014, India; UGC-Centre of Excellence in Applications of Nanomaterials, Nanoparticles and Nanocomposites (Biomedical Sciences), Panjab University, Chandigarh 160014, India.
| |
Collapse
|
183
|
Salatin S, Yari Khosroushahi A. Overviews on the cellular uptake mechanism of polysaccharide colloidal nanoparticles. J Cell Mol Med 2017; 21:1668-1686. [PMID: 28244656 PMCID: PMC5571529 DOI: 10.1111/jcmm.13110] [Citation(s) in RCA: 184] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/30/2016] [Indexed: 12/15/2022] Open
Abstract
Nanoparticulate drug/gene carriers have gained much attention in the past decades because of their versatile and tunable properties. However, efficacy of the therapeutic agents can be further enhanced using naturally occurring materials-based nanoparticles. Polysaccharides are an emerging class of biopolymers; therefore, they are generally considered to be safe, non-toxic, biocompatible and biodegradable. Considering that the target of nanoparticle-based therapeutic strategies is localization of biomedical agents in subcellular compartments, a detailed understanding of the cellular mechanism involved in the uptake of polysaccharide-based nanoparticles is essential for safe and efficient therapeutic applications. Uptake of the nanoparticles by the cellular systems occurs with a process known as endocytosis and is influenced by the physicochemical characteristics of nanoparticles such as size, shape and surface chemistry as well as the employed experimental conditions. In this study, we highlight the main endocytosis mechanisms responsible for the cellular uptake of polysaccharide nanoparticles containing drug/gene.
Collapse
Affiliation(s)
- Sara Salatin
- Biotechnology Research Center, Tabriz University of Medical Science, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Science, Tabriz, Iran
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
| | - Ahmad Yari Khosroushahi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmacognosy, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
184
|
Libralato G, Galdiero E, Falanga A, Carotenuto R, de Alteriis E, Guida M. Toxicity Effects of Functionalized Quantum Dots, Gold and Polystyrene Nanoparticles on Target Aquatic Biological Models: A Review. Molecules 2017; 22:molecules22091439. [PMID: 28858240 PMCID: PMC6151384 DOI: 10.3390/molecules22091439] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 08/17/2017] [Accepted: 08/28/2017] [Indexed: 12/20/2022] Open
Abstract
Nano-based products are widespread in several sectors, including textiles, medical-products, cosmetics, paints and plastics. Nanosafety and safe-by-design are driving nanoparticle (NP) production and applications through NP functionalization (@NPs). Indeed, @NPs frequently present biological effects that differ from the parent material. This paper reviews the impact of quantum dots (QDs), gold nanoparticles (AuNPs), and polystyrene-cored NPs (PSNPs), evidencing the role of NP functionalization in toxicity definition. Key biological models were taken into consideration for NP evaluation: Saccharomyces cerevisiae, fresh- (F) and saltwater (S) microalgae (Raphidocelis subcapitata (F), Scenedesmus obliquus (F) and Chlorella spp. (F), and Phaeodactylum tricornutum (S)), Daphnia magna, and Xenopus laevis. QDs are quite widespread in technological devices, and they are known to induce genotoxicity and oxidative stress that can drastically change according to the coating employed. For example, AuNPs are frequently functionalized with antimicrobial peptides, which is shown to both increase their activity and decrease the relative environmental toxicity. P-NPs are frequently coated with NH2− for cationic and COOH− for anionic surfaces, but when positively charged toxicity effects can be observed. Careful assessment of functionalized and non-functionalized NPs is compulsory to also understand their potential direct and indirect effects when the coating is removed or degraded.
Collapse
Affiliation(s)
- Giovanni Libralato
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte S. Angelo, via Cinthia ed. 7, 80126 Naples, Italy.
| | - Emilia Galdiero
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte S. Angelo, via Cinthia ed. 7, 80126 Naples, Italy.
| | - Annarita Falanga
- Department of Pharmacy, University of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy.
| | - Rosa Carotenuto
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte S. Angelo, via Cinthia ed. 7, 80126 Naples, Italy.
| | - Elisabetta de Alteriis
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte S. Angelo, via Cinthia ed. 7, 80126 Naples, Italy.
| | - Marco Guida
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte S. Angelo, via Cinthia ed. 7, 80126 Naples, Italy.
| |
Collapse
|
185
|
Ozer I, Tomak A, Zareie HM, Baran Y, Bulmus V. Effect of Molecular Architecture on Cell Interactions and Stealth Properties of PEG. Biomacromolecules 2017; 18:2699-2710. [DOI: 10.1021/acs.biomac.7b00443] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | | | - Hadi M. Zareie
- School
of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, Sydney NSW 2007, Australia
| | - Yusuf Baran
- Department
of Molecular Biology and Genetics, Abdullah Gul University, Kayseri 38080, Turkey
| | | |
Collapse
|
186
|
Behzadi S, Serpooshan V, Tao W, Hamaly MA, Alkawareek MY, Dreaden EC, Brown D, Alkilany AM, Farokhzad OC, Mahmoudi M. Cellular uptake of nanoparticles: journey inside the cell. Chem Soc Rev 2017; 46:4218-4244. [PMID: 28585944 PMCID: PMC5593313 DOI: 10.1039/c6cs00636a] [Citation(s) in RCA: 1428] [Impact Index Per Article: 204.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Nanoscale materials are increasingly found in consumer goods, electronics, and pharmaceuticals. While these particles interact with the body in myriad ways, their beneficial and/or deleterious effects ultimately arise from interactions at the cellular and subcellular level. Nanoparticles (NPs) can modulate cell fate, induce or prevent mutations, initiate cell-cell communication, and modulate cell structure in a manner dictated largely by phenomena at the nano-bio interface. Recent advances in chemical synthesis have yielded new nanoscale materials with precisely defined biochemical features, and emerging analytical techniques have shed light on nuanced and context-dependent nano-bio interactions within cells. In this review, we provide an objective and comprehensive account of our current understanding of the cellular uptake of NPs and the underlying parameters controlling the nano-cellular interactions, along with the available analytical techniques to follow and track these processes.
Collapse
Affiliation(s)
- Shahed Behzadi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
187
|
Han Y, Li X, Chen H, Hu X, Luo Y, Wang T, Wang Z, Li Q, Fan C, Shi J, Wang L, Zhao Y, Wu C, Chen N. Real-Time Imaging of Endocytosis and Intracellular Trafficking of Semiconducting Polymer Dots. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21200-21208. [PMID: 28586196 DOI: 10.1021/acsami.7b05662] [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: 06/07/2023]
Abstract
Semiconducting polymer dots (Pdots) have shown great promise in biomedical applications, including biosensing, drug delivery, and live imaging of cells and biomolecules. Insight into the mechanism and regulation of cellular uptake and intracellular metabolism of Pdots is important for the development of superior Pdots-based theranostic nanoconjugates. Herein, we performed real-time imaging of endocytosis and intracellular trafficking of a type of fluorescent Pdots that showed excellent biocompatibility in various types of cells. The endocytic routes and kinetics of Pdots were differently regulated in distinct cell types. Following endocytosis, Pdots were transported in vesicles along microtubule and destined for lysosomes. Furthermore, our results revealed exosome-mediated extracellular release of Pdots and have tracked the dynamic process at the single particle level. These results provide new insight into the design of more effective and selective imaging probes as well as drug carriers.
Collapse
Affiliation(s)
- Yuping Han
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Xiaoming Li
- School of Life Science and Technology, ShanghaiTech University , Shanghai 201210, China
| | - Haobin Chen
- Department of Biomedical Engineering, Southern University of Science and Technology , Shenzhen, Guangdong 518055, China
| | - Xingjie Hu
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Yao Luo
- College of Life Sciences, Sichuan University , Chengdu 610064, China
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Ting Wang
- College of Life Sciences, Sichuan University , Chengdu 610064, China
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Zejun Wang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Qian Li
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Chunhai Fan
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
- School of Life Science and Technology, ShanghaiTech University , Shanghai 201210, China
| | - Jiye Shi
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
- UCB Pharma , 208 Bath Road, Slough SL1 3WE, United Kingdom
| | - Lihua Wang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Yun Zhao
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Changfeng Wu
- Department of Biomedical Engineering, Southern University of Science and Technology , Shenzhen, Guangdong 518055, China
| | - Nan Chen
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| |
Collapse
|
188
|
Halamoda-Kenzaoui B, Ceridono M, Urbán P, Bogni A, Ponti J, Gioria S, Kinsner-Ovaskainen A. The agglomeration state of nanoparticles can influence the mechanism of their cellular internalisation. J Nanobiotechnology 2017. [PMID: 28651541 PMCID: PMC5485545 DOI: 10.1186/s12951-017-0281-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background Significant progress of nanotechnology, including in particular biomedical and pharmaceutical applications, has resulted in a high number of studies describing the biological effects of nanomaterials. Moreover, a determination of so-called “critical quality attributes”, that is specific physicochemical properties of nanomaterials triggering the observed biological response, has been recognised as crucial for the evaluation and design of novel safe and efficacious therapeutics. In the context of in vitro studies, a thorough physicochemical characterisation of nanoparticles (NPs), also in the biological medium, is necessary to allow a correlation with a cellular response. Following this concept, we examined whether the main and frequently reported characteristics of NPs such as size and the agglomeration state can influence the level and the mechanism of NP cellular internalization. Results We employed fluorescently-labelled 30 and 80 nm silicon dioxide NPs, both in agglomerated and non-agglomerated form. Using flow cytometry, transmission electron microscopy, the inhibitors of endocytosis and gene silencing we determined the most probable routes of cellular uptake for each form of tested silica NPs. We observed differences in cellular uptake depending on the size and the agglomeration state of NPs. Caveolae-mediated endocytosis was implicated particularly in the internalisation of well dispersed silica NPs but with an increase of the agglomeration state of NPs a combination of endocytic pathways with a predominant role of macropinocytosis was noted. Conclusions We demonstrated that the agglomeration state of NPs is an important factor influencing the level of cell uptake and the mechanism of endocytosis of silica NPs. Electronic supplementary material The online version of this article (doi:10.1186/s12951-017-0281-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Blanka Halamoda-Kenzaoui
- European Commission Joint Research Centre, Directorate for Health, Consumers and Reference Materials, Via E. Fermi 2749, TP 127, 21027, Ispra, VA, Italy
| | - Mara Ceridono
- European Commission Joint Research Centre, Directorate for Health, Consumers and Reference Materials, Via E. Fermi 2749, TP 127, 21027, Ispra, VA, Italy
| | - Patricia Urbán
- European Commission Joint Research Centre, Directorate for Health, Consumers and Reference Materials, Via E. Fermi 2749, TP 127, 21027, Ispra, VA, Italy
| | - Alessia Bogni
- European Commission Joint Research Centre, Directorate for Health, Consumers and Reference Materials, Via E. Fermi 2749, TP 127, 21027, Ispra, VA, Italy
| | - Jessica Ponti
- European Commission Joint Research Centre, Directorate for Health, Consumers and Reference Materials, Via E. Fermi 2749, TP 127, 21027, Ispra, VA, Italy
| | - Sabrina Gioria
- European Commission Joint Research Centre, Directorate for Health, Consumers and Reference Materials, Via E. Fermi 2749, TP 127, 21027, Ispra, VA, Italy
| | - Agnieszka Kinsner-Ovaskainen
- European Commission Joint Research Centre, Directorate for Health, Consumers and Reference Materials, Via E. Fermi 2749, TP 127, 21027, Ispra, VA, Italy.
| |
Collapse
|
189
|
Bouallegui Y, Ben Younes R, Turki F, Oueslati R. Impact of exposure time, particle size and uptake pathway on silver nanoparticle effects on circulating immune cells in mytilus galloprovincialis. J Immunotoxicol 2017; 14:116-124. [DOI: 10.1080/1547691x.2017.1335810] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Younes Bouallegui
- Research Unit for Immuno-Microbiology Environmental and Cancerogenesis, Sciences Faculty of Bizerte, University of Carthage, Bizerte, Tunisia
| | - Ridha Ben Younes
- Research Unit for Immuno-Microbiology Environmental and Cancerogenesis, Sciences Faculty of Bizerte, University of Carthage, Bizerte, Tunisia
| | - Faten Turki
- Research Unit for Immuno-Microbiology Environmental and Cancerogenesis, Sciences Faculty of Bizerte, University of Carthage, Bizerte, Tunisia
| | - Ridha Oueslati
- Research Unit for Immuno-Microbiology Environmental and Cancerogenesis, Sciences Faculty of Bizerte, University of Carthage, Bizerte, Tunisia
| |
Collapse
|
190
|
Wang T, Wang L, Li X, Hu X, Han Y, Luo Y, Wang Z, Li Q, Aldalbahi A, Wang L, Song S, Fan C, Zhao Y, Wang M, Chen N. Size-Dependent Regulation of Intracellular Trafficking of Polystyrene Nanoparticle-Based Drug-Delivery Systems. ACS APPLIED MATERIALS & INTERFACES 2017; 9:18619-18625. [PMID: 28497682 DOI: 10.1021/acsami.7b05383] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Nanoparticles (NPs) have shown great promise as intracellular imaging probes or nanocarriers and are increasingly being used in biomedical applications. A detailed understanding of how NPs get "in and out" of cells is important for developing new nanomaterials with improved selectivity and less cytotoxicity. Both physical and chemical characteristics have been proven to regulate the cellular uptake of NPs. However, the exocytosis process and its regulation are less explored. Herein, we investigated the size-regulated endocytosis and exocytosis of carboxylated polystyrene (PS) NPs. PS NPs with a smaller size were endocytosed mainly through the clathrin-dependent pathway, whereas PS NPs with a larger size preferred caveolae-mediated endocytosis. Furthermore, our results revealed exocytosis of larger PS NPs and tracked the dynamic process at the single-particle level. These results indicate that particle size is a key factor for the regulation of intracellular trafficking of NPs and provide new insight into the development of more effective cellular nanocarriers.
Collapse
Affiliation(s)
- Ting Wang
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Lu Wang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Xiaoming Li
- School of Life Science and Technology, ShanghaiTech University , Shanghai 201210, China
| | - Xingjie Hu
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Yuping Han
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Yao Luo
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Zejun Wang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Qian Li
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Ali Aldalbahi
- Chemistry Department, King Saud University , Riyadh 11451, Saudi Arabia
| | - Lihua Wang
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Shiping Song
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Chunhai Fan
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Yun Zhao
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Maolin Wang
- College of Life Sciences, Sichuan University , Chengdu 610064, China
| | - Nan Chen
- Division of Physical Biology and Bioimaging Center, Shanghai Synchrotron Radiation Facility, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| |
Collapse
|
191
|
Bouallegui Y, Ben Younes R, Turki F, Mezni A, Oueslati R. Effect of exposure time, particle size and uptake pathways in immune cell lysosomal cytotoxicity of mussels exposed to silver nanoparticles. Drug Chem Toxicol 2017; 41:169-174. [PMID: 28583008 DOI: 10.1080/01480545.2017.1329317] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Cytotoxicity evaluation of hemocytes (lysosomal membrane stability [LMS] assay) from Mytilus galloprovincialis Lamarck, exposed to a sublethal dose (100 μg/L) of two size of silver nanoparticles (AgNPs: <50 nm and <100 nm) - prior to and after inhibition of potential uptake pathways (i.e., clathrin- and caveolae-mediated endocytosis) within different times of exposure (3, 6, 12 h) - showed that there was a significant cytotoxic effect on immune cells of mussels exposed for different times to either AgNP size (p < 0.01); the greater effect was with the smaller size. However, hemocytes seemed more sensitive to the larger AgNP after clathrin-mediated endocytosis was blocked (p < 0.01); this was not so with inhibition of caveolae-mediated endocytosis. Dimethyl-sulfoxide (DMSO) did not impart a carrier-mediated effect despite an enhanced cytotoxicity when DMSO was present with AgNP. From these results, it is concluded that the immunotoxicity of AgNP in mussels was size-dependent as well as length of exposure-dependent. It was also clear that nanoparticles (NP) internalization mechanisms were a major factor underlying any toxicity.
Collapse
Affiliation(s)
- Younes Bouallegui
- a Research Unit of Immuno-Microbiology Environmental and Cancerogensis, Sciences Faculty of Bizerte , University of Carthage , Bizerte , Tunisia
| | - Ridha Ben Younes
- a Research Unit of Immuno-Microbiology Environmental and Cancerogensis, Sciences Faculty of Bizerte , University of Carthage , Bizerte , Tunisia
| | - Faten Turki
- a Research Unit of Immuno-Microbiology Environmental and Cancerogensis, Sciences Faculty of Bizerte , University of Carthage , Bizerte , Tunisia
| | - Amine Mezni
- b Department of Chemistry, Faculty of Science , Taif University , Taif , Saudi Arabia.,c Research Unit "Synthesis and Structure of Nanomaterials" UR11ES30, Sciences Faculty of Bizerte , University of Carthage , Bizerte , Tunisia
| | - Ridha Oueslati
- a Research Unit of Immuno-Microbiology Environmental and Cancerogensis, Sciences Faculty of Bizerte , University of Carthage , Bizerte , Tunisia
| |
Collapse
|
192
|
Hsiao IL, Hsieh YK, Chuang CY, Wang CF, Huang YJ. Effects of silver nanoparticles on the interactions of neuron- and glia-like cells: Toxicity, uptake mechanisms, and lysosomal tracking. ENVIRONMENTAL TOXICOLOGY 2017; 32:1742-1753. [PMID: 28181394 DOI: 10.1002/tox.22397] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 01/14/2017] [Accepted: 01/15/2017] [Indexed: 05/11/2023]
Abstract
Silver nanoparticles (AgNPs) are commonly used nanomaterials in consumer products. Previous studies focused on its effects on neurons; however, little is known about their effects and uptake mechanisms on glial cells under normal or activated states. Here, ALT astrocyte-like, BV-2 microglia and differentiated N2a neuroblastoma cells were directly or indirectly exposed to 10 nm AgNPs using mono- and co-culture system. A lipopolysaccharide (LPS) was pretreated to activate glial cells before AgNP treatment for mimicking NP exposure under brain inflammation. From mono-culture, ALT took up the most AgNPs and had the lowest cell viability within three cells. Moreover, AgNPs induced H2 O2 and NO from ALT/activated ALT and BV-2, respectively. However, AgNPs did not induce cytokines release (IL-6, TNF-α, MCP-1). LPS-activated BV-2 took up more AgNPs than normal BV-2, while the induction of ROS and cytokines from activated cells were diminished. Ca2+ -regulated clathrin- and caveolae-independent endocytosis and phagocytosis were involved in the AgNP uptake in ALT, which caused more rapid NP translocation to lysosome than in macropinocytosis and clathrin-dependent endocytosis-involved BV-2. AgNPs directly caused apoptosis and necrosis in N2a cells, while by indirect NP exposure to bottom chamber ALT or BV-2 in Transwell, more apoptotic upper chamber N2a cells were observed. Cell viability of BV-2 also decreased in an ALT-BV-2 co-culturing study. The damaged cells correlated to NP-mediated H2 O2 release from ALT or NO from BV-2, which indicates that toxic response of AgNPs to neurons is not direct, but indirectly arises from AgNP-induced soluble factors from other glial cells.
Collapse
Affiliation(s)
- I-Lun Hsiao
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Yi-Kong Hsieh
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Chun-Yu Chuang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Chu-Fang Wang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Yuh-Jeen Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 30013, Taiwan
| |
Collapse
|
193
|
Teplensky MH, Fantham M, Li P, Wang TC, Mehta JP, Young LJ, Moghadam PZ, Hupp JT, Farha OK, Kaminski CF, Fairen-Jimenez D. Temperature Treatment of Highly Porous Zirconium-Containing Metal–Organic Frameworks Extends Drug Delivery Release. J Am Chem Soc 2017; 139:7522-7532. [DOI: 10.1021/jacs.7b01451] [Citation(s) in RCA: 218] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Michelle H. Teplensky
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, U.K
| | - Marcus Fantham
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, U.K
| | - Peng Li
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Timothy C. Wang
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Joshua P. Mehta
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, U.K
- Department
of Chemistry, University of Cambridge, Cambridge, U.K
| | - Laurence J. Young
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, U.K
| | - Peyman Z. Moghadam
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, U.K
| | - Joseph T. Hupp
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Omar K. Farha
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department
of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Clemens F. Kaminski
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, U.K
| | - David Fairen-Jimenez
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, U.K
| |
Collapse
|
194
|
De Francesco PN, Castrogiovanni D, Uriarte M, Frassa V, Agosti F, Raingo J, Perello M. A simple strategy for culturing morphologically-conserved rat hypothalamic tanycytes. Cell Tissue Res 2017; 369:369-380. [PMID: 28413862 DOI: 10.1007/s00441-017-2608-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 03/02/2017] [Accepted: 03/06/2017] [Indexed: 10/19/2022]
Abstract
Hypothalamic tanycytes are specialized bipolar ependymal cells that line the floor of the third ventricle. Given their strategic location, tanycytes are believed to play several key functions including being a selective barrier and controlling the amount of hypothalamic-derived factors reaching the anterior pituitary. The in vitro culture of these cells has proved to be difficult. Here, we report an improved method for the generation of primary cultures of rat hypothalamic tanycytes. Ependymal cultures were derived from tissue dissected out of the median eminence region of 10-day-old rats and cultured in a chemically defined medium containing DMEM:F12, serum albumin, insulin, transferrin and the antibiotic gentamycin. After 7 days in vitro, ∼30% of the cultured cells exhibited morphological features of tanycytes as observed by phase contrast or scanning electron microscopy. Tanycyte-like cells were strongly immuno-reactive for vimentin and dopamine-cAMP-regulated phospho-protein (DARPP-32) and weakly immune-reactive for glial fibrillary acidic protein. Tanycyte-like cells displayed a stable negative resting plasma membrane potential and failed to show spiking properties in response to current injections. When exposed to fluorescent beads in the culture medium, tanycyte-like cells exhibited a robust endocytosis. Thus, the present method effectively yields cultures containing tanycyte-like cells that resemble in vivo tanycytes in terms of morphologic features and molecular markers as well as electrical and endocytic activity. To our knowledge, this is the first protocol that allows the culturing of tanycyte-like cells that can be individually identified and that conserve the morphology of tanycytes in their natural physiological environment.
Collapse
Affiliation(s)
- Pablo Nicolás De Francesco
- Laboratory of Neurophysiology of the Multidisciplinary Institute of Cell Biology [IMBICE, dependent of the Argentine Research Council (CONICET) and Scientific Research Commission, Province of Buenos Aires (CIC-PBA)], Calle 526 entre 10 y 11, PO Box 403, La Plata, 1900, Buenos Aires, Argentina
| | - Daniel Castrogiovanni
- Cell Culture Facility of the Multidisciplinary Institute of Cell Biology [IMBICE, dependent of the Argentine Research Council (CONICET) and Scientific Research Commission, Province of Buenos Aires (CIC-PBA)], La Plata, Buenos Aires, Argentina
| | - Maia Uriarte
- Laboratory of Neurophysiology of the Multidisciplinary Institute of Cell Biology [IMBICE, dependent of the Argentine Research Council (CONICET) and Scientific Research Commission, Province of Buenos Aires (CIC-PBA)], Calle 526 entre 10 y 11, PO Box 403, La Plata, 1900, Buenos Aires, Argentina
| | - Victoria Frassa
- Laboratory of Neurophysiology of the Multidisciplinary Institute of Cell Biology [IMBICE, dependent of the Argentine Research Council (CONICET) and Scientific Research Commission, Province of Buenos Aires (CIC-PBA)], Calle 526 entre 10 y 11, PO Box 403, La Plata, 1900, Buenos Aires, Argentina
| | - Francina Agosti
- Laboratory of Electrophysiology of the Multidisciplinary Institute of Cell Biology [IMBICE, dependent of the Argentine Research Council (CONICET) and Scientific Research Commission, Province of Buenos Aires (CIC-PBA)], La Plata, Buenos Aires, Argentina
| | - Jesica Raingo
- Laboratory of Electrophysiology of the Multidisciplinary Institute of Cell Biology [IMBICE, dependent of the Argentine Research Council (CONICET) and Scientific Research Commission, Province of Buenos Aires (CIC-PBA)], La Plata, Buenos Aires, Argentina
| | - Mario Perello
- Laboratory of Neurophysiology of the Multidisciplinary Institute of Cell Biology [IMBICE, dependent of the Argentine Research Council (CONICET) and Scientific Research Commission, Province of Buenos Aires (CIC-PBA)], Calle 526 entre 10 y 11, PO Box 403, La Plata, 1900, Buenos Aires, Argentina.
| |
Collapse
|
195
|
Cytotoxicity of gold nanoparticles with different structures and surface-anchored chiral polymers. Acta Biomater 2017; 53:610-618. [PMID: 28213095 DOI: 10.1016/j.actbio.2017.01.082] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 01/24/2017] [Accepted: 01/30/2017] [Indexed: 12/15/2022]
Abstract
Nanoparticles (NPs) can have profound effects on cell biology. However, the potential adverse effects of gold nanoparticles (AuNPs) with different surface chirality and structures have not been elucidated. In this study, monolayers of poly(acryloyl-l(d)-valine (l(d)-PAV) chiral molecules were anchored on the surfaces of gold nanocubes (AuNCs) and nanooctahedras (AuNOs), respectively. The l-PAV-AuNCs and d-PAV-AuNCs, or the l-PAV-AuNOs and d-PAV-AuNOs, had identical physicochemical properties in terms of size, morphology and ligand density except of the reverse molecular chirality on the particle surfaces, respectively. The l-PAV capped AuNCs and AuNOs exhibited larger cytotoxicity to A549 cells than the D-PAV coated ones, and the PAV-AuNOs had larger cytotoxicity than PAV-AuNCs when being capped with the same type of enantiomers, respectively. The cytotoxicity was positively correlated with the cellular uptake amount, and thereby the production of intracellular reactive oxygen species (ROS). STATEMENT OF SIGNIFICANCE • Gold nanoparticles with different structure and surface chirality are fabricated. • The structure and surface chirality at the nanoscale can influence cytotoxicity and genotoxicity. • A new perspective on designing nanoparticles for drug delivery, bioimaging and diagnosis.
Collapse
|
196
|
Ullah I, Muhammad K, Akpanyung M, Nejjari A, Neve AL, Guo J, Feng Y, Shi C. Bioreducible, hydrolytically degradable and targeting polymers for gene delivery. J Mater Chem B 2017; 5:3253-3276. [PMID: 32264392 DOI: 10.1039/c7tb00275k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recently, synthetic gene carriers have been intensively developed owing to their promising application in gene therapy and considered as a suitable alternative to viral vectors because of several benefits. But cationic polymers still face some problems like low transfection efficiency, cytotoxicity, and poor cell recognition and internalization. The emerging engineered and smart polymers can respond to some changes in the biological environment like pH change, ionic strength change and redox potential, which is beneficial for cellular uptake. Redox-sensitive disulfide based and hydrolytically degradable cationic polymers serve as gene carriers with excellent transfection efficiency and good biocompatibility owing to degradation in the cytoplasm. Additionally, biodegradable polymeric micelles with cell-targeting function are recently emerging gene carriers, especially for the transfection of endothelial cells. In this review, some strategies for gene carriers based on these bioreducible and hydrolytically degradable polymers will be illustrated.
Collapse
Affiliation(s)
- Ihsan Ullah
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China.
| | | | | | | | | | | | | | | |
Collapse
|
197
|
Delivery of doxorubicin-loaded PLGA nanoparticles into U87 human glioblastoma cells. Int J Pharm 2017; 524:77-90. [PMID: 28359811 DOI: 10.1016/j.ijpharm.2017.03.049] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 12/22/2022]
Abstract
The paramount problem in the therapy of brain tumors is the inability of most drugs to cross the blood-brain barrier. PLGA nanoparticles overcoated with poloxamer 188 could overcome this problem and enabled a high anti-tumoral effect against the very aggressive intracranial 101.8 glioblastoma in rats that closely resembles human grade IV glioblastomas. The basis for the transport of these particles across the blood-brain barrier appears to be adsorption of blood apolipoproteins (ApoE or ApoA-I) on the nanoparticle surface caused by the poloxamer 188-coating, followed by receptor-mediated transcytosis of the nanoparticles. The objective of the present study is the elucidation of the mechanism by which the poloxamer 188-coated nanoparticles then enter the brain tumor cells. Their intracellular fate, therefore, was investigated using the U87 human glioma cell line. The main mechanism of the PLGA nanoparticle internalization by U87 cells was clathrin-mediated endocytosis. Within 1h free doxorubicin was released from late endosomes and could reach its target site, i.e. the DNA in the nuclei without degradation, whereas the PLGA nanoparticles, which were labeled with Cy5.5, still were observed in the endo-lysosomal compartment. These results demonstrate that the underlying mechanism of action in the brain cells is by diffusive doxorubicin release from the nanoparticles rather than by their intracellular degradation.
Collapse
|
198
|
Wang J, Ayano E, Maitani Y, Kanazawa H. Enhanced cellular uptake and gene silencing activity of siRNA using temperature-responsive polymer-modified liposome. Int J Pharm 2017; 523:217-228. [PMID: 28330734 DOI: 10.1016/j.ijpharm.2017.03.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/06/2017] [Accepted: 03/18/2017] [Indexed: 10/19/2022]
Abstract
Short interfering RNA (siRNA) delivery systems using nanoparticle carriers have been limited by inefficient intracellular delivery. One drawback is the poor cellular uptake of siRNA/particle complexes through the plasma membrane and release of the nucleic acids into the cytosol. In this study, to develop the temperature-responsive liposome as a novel carrier for siRNA delivery, we prepared lipoplexes and assessed cellular uptake of siRNA and gene silencing activity of target genes, compared with those of a commercial transfection reagent, Lipofectamine RNAiMAX, and non-modified or PEGylated liposomes. The temperature-responsive polymer, N-isopropylacrylamide-co-N,N'-dimethylaminopropylacrylamide [P(NIPAAm-co-DMAPAAm)]-modified liposome induced faster intracellular delivery because P(NIPAAm-co-DMAPAAm) exhibits a lower critical solution temperature (LCST) changing its nature from hydrophilic to hydrophobic above the LCST. The temperature-responsive liposomes showed significantly higher gene silencing activity than other carriers with less cytotoxicity. Furthermore, we showed that the temperature-responsive lipoplexes were internalized mainly via microtubule-dependent transport and also by the clathrin-mediated endocytosis pathway. This is the first report that temperature-responsive polymer-modified liposomes thermally enhanced silencing activity of siRNA. The dehydrated polymer on the liposomes, and its aggregation caused around the LCST, can probably be attributed to effective cellular uptake of the lipoplexes for gene silencing activity by interaction with the cell membrane.
Collapse
Affiliation(s)
- Jian Wang
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan
| | - Eri Ayano
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan
| | - Yoshie Maitani
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
| |
Collapse
|
199
|
da Luz CM, Boyles MSP, Falagan-Lotsch P, Pereira MR, Tutumi HR, de Oliveira Santos E, Martins NB, Himly M, Sommer A, Foissner I, Duschl A, Granjeiro JM, Leite PEC. Poly-lactic acid nanoparticles (PLA-NP) promote physiological modifications in lung epithelial cells and are internalized by clathrin-coated pits and lipid rafts. J Nanobiotechnology 2017; 15:11. [PMID: 28143572 PMCID: PMC5282631 DOI: 10.1186/s12951-016-0238-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 12/03/2016] [Indexed: 02/07/2023] Open
Abstract
Background Poly-lactic acid nanoparticles (PLA-NP) are a type of polymeric NP, frequently used as nanomedicines, which have advantages over metallic NP such as the ability to maintain therapeutic drug levels for sustained periods of time. Despite PLA-NP being considered biocompatible, data concerning alterations in cellular physiology are scarce. Methods We conducted an extensive evaluation of PLA-NP biocompatibility in human lung epithelial A549 cells using high throughput screening and more complex methodologies. These included measurements of cytotoxicity, cell viability, immunomodulatory potential, and effects upon the cells’ proteome. We used non- and green-fluorescent PLA-NP with 63 and 66 nm diameters, respectively. Cells were exposed with concentrations of 2, 20, 100 and 200 µg/mL, for 24, 48 and 72 h, in most experiments. Moreover, possible endocytic mechanisms of internalization of PLA-NP were investigated, such as those involving caveolae, lipid rafts, macropinocytosis and clathrin-coated pits. Results Cell viability and proliferation were not altered in response to PLA-NP. Multiplex analysis of secreted mediators revealed a low-level reduction of IL-12p70 and vascular epidermal growth factor (VEGF) in response to PLA-NP, while all other mediators assessed were unaffected. However, changes to the cells’ proteome were observed in response to PLA-NP, and, additionally, the cellular stress marker miR155 was found to reduce. In dual exposures of staurosporine (STS) with PLA-NP, PLA-NP enhanced susceptibility to STS-induced cell death. Finally, PLA-NP were rapidly internalized in association with clathrin-coated pits, and, to a lesser extent, with lipid rafts. Conclusions These data demonstrate that PLA-NP are internalized and, in general, tolerated by A549 cells, with no cytotoxicity and no secretion of pro-inflammatory mediators. However, PLA-NP exposure may induce modification of biological functions of A549 cells, which should be considered when designing drug delivery systems. Moreover, the pathways of PLA-NP internalization we detected could contribute to the improvement of selective uptake strategies. Electronic supplementary material The online version of this article (doi:10.1186/s12951-016-0238-1) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Camila Macedo da Luz
- Laboratory of Bioengineering and in Vitro Toxicology, Directory of Metrology Applied to Life Sciences (Dimav), National Institute of Metrology Quality and Technology (INMETRO), Duque De Caxias, RJ, Brazil
| | - Matthew Samuel Powys Boyles
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria.,Heriot-Watt University, Edinburg, UK
| | - Priscila Falagan-Lotsch
- Laboratory of Bioengineering and in Vitro Toxicology, Directory of Metrology Applied to Life Sciences (Dimav), National Institute of Metrology Quality and Technology (INMETRO), Duque De Caxias, RJ, Brazil
| | - Mariana Rodrigues Pereira
- Laboratory of Chemical Signaling in Nervous System, Biology Institute, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Henrique Rudolf Tutumi
- Laboratory of Bioengineering and in Vitro Toxicology, Directory of Metrology Applied to Life Sciences (Dimav), National Institute of Metrology Quality and Technology (INMETRO), Duque De Caxias, RJ, Brazil
| | - Eidy de Oliveira Santos
- Laboratory of Bioengineering and in Vitro Toxicology, Directory of Metrology Applied to Life Sciences (Dimav), National Institute of Metrology Quality and Technology (INMETRO), Duque De Caxias, RJ, Brazil.,Laboratory of Biochemistry, State University Center of West Zone (UEZO), Rio de Janeiro, RJ, Brazil
| | - Nathalia Balthazar Martins
- Laboratory of Bioengineering and in Vitro Toxicology, Directory of Metrology Applied to Life Sciences (Dimav), National Institute of Metrology Quality and Technology (INMETRO), Duque De Caxias, RJ, Brazil
| | - Martin Himly
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Aniela Sommer
- Department of Cell Biology, University of Salzburg, Salzburg, Austria
| | - Ilse Foissner
- Department of Cell Biology, University of Salzburg, Salzburg, Austria
| | - Albert Duschl
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - José Mauro Granjeiro
- Laboratory of Bioengineering and in Vitro Toxicology, Directory of Metrology Applied to Life Sciences (Dimav), National Institute of Metrology Quality and Technology (INMETRO), Duque De Caxias, RJ, Brazil.,Dental School, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Paulo Emílio Corrêa Leite
- Laboratory of Bioengineering and in Vitro Toxicology, Directory of Metrology Applied to Life Sciences (Dimav), National Institute of Metrology Quality and Technology (INMETRO), Duque De Caxias, RJ, Brazil. .,, Av. Nossa Senhora das Gracas 50, LABET - Dimav, Predio 27, Duque de Caxias, Xerem, Rio de Janeiro, 25250-020, Brazil.
| |
Collapse
|
200
|
Deville S, Hadiwikarta WW, Smisdom N, Wathiong B, Ameloot M, Nelissen I, Hooyberghs J. Transient loading of CD34 + hematopoietic progenitor cells with polystyrene nanoparticles. Int J Nanomedicine 2017; 12:459-472. [PMID: 28138242 PMCID: PMC5238761 DOI: 10.2147/ijn.s119407] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
CD34+ hematopoietic progenitor cells (HPCs) offer great opportunities to develop new treatments for numerous malignant and non-malignant diseases. Nanoparticle (NP)-based strategies can further enhance this potential, and therefore a thorough understanding of the loading behavior of HPCs towards NPs is essential for a successful application. The present study focusses on the interaction kinetics of 40 nm sized carboxylated polystyrene (PS) NPs with HPCs. Interestingly, a transient association of the NPs with HPCs is observed, reaching a maximum within 1 hour and declining afterwards. This behavior is not seen in dendritic cells (CD34-DCs) differentiated from HPCs, which display a monotonic increase in NP load. We demonstrate that this transient interaction requires an energy-dependent cellular process, suggesting active loading and release of NPs by HPCs. This novel observation offers a unique approach to transiently equip HPCs. A simple theoretical approach modeling the kinetics of NP loading and release is presented, contributing to a framework of describing this phenomenon.
Collapse
Affiliation(s)
- Sarah Deville
- VITO, Flemish Institute for Technological Research, Mol, Belgium; Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | | | - Nick Smisdom
- VITO, Flemish Institute for Technological Research, Mol, Belgium; Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Bart Wathiong
- VITO, Flemish Institute for Technological Research, Mol, Belgium; Theoretical Physics, Hasselt University, Diepenbeek, Belgium
| | - Marcel Ameloot
- Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Inge Nelissen
- VITO, Flemish Institute for Technological Research, Mol, Belgium
| | - Jef Hooyberghs
- VITO, Flemish Institute for Technological Research, Mol, Belgium; Theoretical Physics, Hasselt University, Diepenbeek, Belgium
| |
Collapse
|