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González-García D, Tapia O, Évora C, García-García P, Delgado A. Conventional and microfluidic methods: Design and optimization of lipid-polymeric hybrid nanoparticles for gene therapy. Drug Deliv Transl Res 2024:10.1007/s13346-024-01644-4. [PMID: 38872047 DOI: 10.1007/s13346-024-01644-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2024] [Indexed: 06/15/2024]
Abstract
Gene therapy holds significant promise as a therapeutic approach for addressing a diverse range of diseases through the suppression of overexpressed proteins and the restoration of impaired cell functions. Developing a nanocarrier that can efficiently load and release genetic material into cells remains a challenge. The primary goal of this study is to develop formulations aimed to enhance the therapeutic potential of GapmeRs through technological approaches. To this end, lipid-polymeric hybrid nanoparticles (LPHNPs) with PLGA, DC-cholesterol, and DOPE-mPEG2000 were produced by conventional single-step nanoprecipitation (SSN) and microfluidic (MF) methods. The optimized nanoparticles by SSN have a size of 149.9 ± 18.07 nm, a polydispersity index (PdI) of 0.23 ± 0.02, and a zeta potential of (ZP) of 29.34 ± 2.44 mV, while by MF the size was 179.8 ± 6.3, a PdI of 0.24 ± 0.01, and a ZP of 32.25 ± 1.36 mV. Furthermore, LPHNPs prepared with GapmeR-protamine by both methods exhibit a high encapsulation efficiency of approximately 90%. The encapsulated GapmeR is completely released in 24 h. The LPHNP suspensions are stable for up to 6 h in 10% FBS at pH 5.4 and 7.4. By contrast, LPHNPs remain stable in suspension in 4.5% albumin at pH 7.4 for 24 h. Additionally, LPHNPs were successfully freeze-dried using trehalose in the range of 2.5-5% as cryoprotectant The LPHNPs produced by MF and SSN increase, 6 and 12 fold respectively, GapmeR cell uptake, and both of them reduce by 60-70% expression of Tob1 in 48 h.Our study demonstrates the efficacy of the developed LPHNPs as carriers for oligonucleotide delivery, offering valuable insights for their scale up production from a conventional bulk methodology to a high-throughput microfluidic technology.
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Affiliation(s)
- Daniel González-García
- Department of Chemical Engineering and Pharmaceutical Technology, Universidad de La Laguna, La Laguna, 38200, Spain
- Institute of Biomedical Technologies (ITB), Center for Biomedical Research of the Canary Islands (CIBICAN), Universidad de La Laguna, La Laguna, 38200, Spain
| | - Olga Tapia
- Institute of Biomedical Technologies (ITB), Center for Biomedical Research of the Canary Islands (CIBICAN), Universidad de La Laguna, La Laguna, 38200, Spain
- Department of Basic Medical Sciences, Universidad de La Laguna, La Laguna, 38200, Spain
| | - Carmen Évora
- Department of Chemical Engineering and Pharmaceutical Technology, Universidad de La Laguna, La Laguna, 38200, Spain
- Institute of Biomedical Technologies (ITB), Center for Biomedical Research of the Canary Islands (CIBICAN), Universidad de La Laguna, La Laguna, 38200, Spain
| | - Patricia García-García
- Department of Chemical Engineering and Pharmaceutical Technology, Universidad de La Laguna, La Laguna, 38200, Spain.
- Institute of Biomedical Technologies (ITB), Center for Biomedical Research of the Canary Islands (CIBICAN), Universidad de La Laguna, La Laguna, 38200, Spain.
| | - Araceli Delgado
- Department of Chemical Engineering and Pharmaceutical Technology, Universidad de La Laguna, La Laguna, 38200, Spain.
- Institute of Biomedical Technologies (ITB), Center for Biomedical Research of the Canary Islands (CIBICAN), Universidad de La Laguna, La Laguna, 38200, Spain.
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2
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Thakur NS, Rus I, Sparks E, Agrahari V. Dual stimuli-responsive and sustained drug delivery NanoSensoGel formulation for prevention of cisplatin-induced ototoxicity. J Control Release 2024; 368:66-83. [PMID: 38331002 DOI: 10.1016/j.jconrel.2024.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 02/06/2024] [Indexed: 02/10/2024]
Abstract
Cisplatin (CisPt)-induced ototoxicity (CIO) is delineated as a consequence of CisPt-induced intracellular generation of reactive oxygen species (ROS) which can be circumvented by Bucillamine (BUC; an antioxidant drug with sulfhydryl groups) and Diltiazem (DLT, L-type calcium channel blocker). However, its effective accumulation in the Organ of Corti and cell cytoplasm is desired. Therefore, a biocompatible BUC- and DLT-nanoparticles (NPs)-impregnated dual stimuli-responsive formulation (NanoSensoGel) presented here with ROS- and thermo-responsive properties for the sustained and receptive delivery of drugs. The ROS-responsive polypropylene sulfide- methyl polyethylene glycol-2000 (PPS-mPEG2000) polymer was rationally designed, synthesized, and characterized to fabricate BUC- and DLT-loaded PPS-mPEG2000-NPs (BUC- and DLT-NPs). The fabricated BUC- and DLT-NPs showed efficient cellular uptake, intracellular delivery, ROS responsiveness, and cytoprotective effect which was characterized using cellular internalization, intracellular ROS, mitochondrial superoxide, and Caspase 3/7 assays on the House Ear Institute-Organ of Corti-1 (HEI-OC1) cells. The composite NanoSensoGel (i.e., ROS-responsive BUC- and DLT-NPs suspended in the thermo-responsive hydrogel) present in a sol state at room temperature and turned to gel above 33°C, which could be essential for retaining the formulation at the target site for long-term release. The NanoSensoGel showed sustained release of BUC and DLT following Fickian release diffusion kinetics. Overall, a novel NanoSensoGel formulation developed in this study has demonstrated its great potential in delivering therapeutics in the inner ear for prophylactic treatment of CIO, and associated hearing loss.
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Affiliation(s)
- Neeraj S Thakur
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
| | - Iulia Rus
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
| | - Ethan Sparks
- Department of Integrative Biology, Oklahoma State University, Stillwater, OK 74078, USA
| | - Vibhuti Agrahari
- Department of Pharmaceutical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA.
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3
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Spleis H, Sandmeier M, Claus V, Bernkop-Schnürch A. Surface design of nanocarriers: Key to more efficient oral drug delivery systems. Adv Colloid Interface Sci 2023; 313:102848. [PMID: 36780780 DOI: 10.1016/j.cis.2023.102848] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/31/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
As nanocarriers (NCs) can improve the solubility of drugs, prevent their degradation by gastrointestinal (GI) enzymes and promote their transport across the mucus gel layer and absorption membrane, the oral bioavailability of these drugs can be substantially enhanced. All these properties of NCs including self-emulsifying drug delivery systems (SEDDS), solid lipid nanoparticles (SLNs), nanostructured lipid carriers (NLCs), liposomes, polymeric nanoparticles, inorganic nanoparticles and polymeric micelles depend mainly on their surface chemistry. In particular, interaction with food, digestive enzymes, bile salts and electrolytes, diffusion behaviour across the mucus gel layer and fate on the absorption membrane are determined by their surface. Bioinert surfaces limiting interactions with gastrointestinal fluid and content as well as with mucus, adhesive surfaces providing an intimate contact with the GI mucosa and absorption enhancing surfaces can be designed. Furthermore, charge converting surfaces shifting their zeta potential from negative to positive directly at the absorption membrane and surfaces providing a targeted drug release are advantageous. In addition to these passive surfaces, even active surfaces cleaving mucus glycoproteins on their way through the mucus gel layer can be created. Within this review, we provide an overview on these different surfaces and discuss their impact on the performance of NCs in the GI tract.
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Affiliation(s)
- Helen Spleis
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck 6020, Austria; Thiomatrix Forschungs und Beratungs GmbH, Trientlgasse 65, Innsbruck 6020, Austria
| | - Matthias Sandmeier
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck 6020, Austria; Thiomatrix Forschungs und Beratungs GmbH, Trientlgasse 65, Innsbruck 6020, Austria
| | - Victor Claus
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck 6020, Austria; Thiomatrix Forschungs und Beratungs GmbH, Trientlgasse 65, Innsbruck 6020, Austria
| | - Andreas Bernkop-Schnürch
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, Innsbruck 6020, Austria.
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4
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Gokce C, Gurcan C, Besbinar O, Unal MA, Yilmazer A. Emerging 2D materials for antimicrobial applications in the pre- and post-pandemic era. NANOSCALE 2022; 14:239-249. [PMID: 34935015 DOI: 10.1039/d1nr06476b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Infectious diseases caused by viral or bacterial pathogens are one of the most serious threats to humanity. Moreover, they may lead to pandemics, as we have witnessed severely with the coronavirus disease 2019 (COVID-19). Nanotechnology, including technological developments of nano-sized materials, has brought great opportunities to control the spreading of such diseases. In the family of nano-sized materials, two-dimensional (2D) materials with intrinsic physicochemical properties can efficiently favor antimicrobial activity and maintain a safer environment to protect people against pathogens. For this purpose, they can be used alone or combined for the disinfection process of microbes, antiviral or antibacterial surface coatings, air filtering of medical equipment like face masks, or antimicrobial drug delivery systems. At the same time, they are promising candidates to deal with the issues of conventional antimicrobial approaches such as low efficacy and high cost. This review covers the antiviral or antibacterial activities of 2D materials and highlights their current and possible future applications. Considering their intrinsic properties, 2D materials will become part of the leading antimicrobial technologies for combating future pandemics anytime soon.
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Affiliation(s)
- Cemile Gokce
- Department of Biomedical Engineering, Ankara University, Golbasi, Ankara, Turkey.
| | - Cansu Gurcan
- Department of Biomedical Engineering, Ankara University, Golbasi, Ankara, Turkey.
- Stem Cell Institute, Ankara University, Balgat, Ankara, Turkey
| | - Omur Besbinar
- Department of Biomedical Engineering, Ankara University, Golbasi, Ankara, Turkey.
- Stem Cell Institute, Ankara University, Balgat, Ankara, Turkey
| | | | - Acelya Yilmazer
- Department of Biomedical Engineering, Ankara University, Golbasi, Ankara, Turkey.
- Stem Cell Institute, Ankara University, Balgat, Ankara, Turkey
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Cunningham C, de Kock M, Engelbrecht M, Miles X, Slabbert J, Vandevoorde C. Radiosensitization Effect of Gold Nanoparticles in Proton Therapy. Front Public Health 2021; 9:699822. [PMID: 34395371 PMCID: PMC8358148 DOI: 10.3389/fpubh.2021.699822] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 06/30/2021] [Indexed: 01/02/2023] Open
Abstract
The number of proton therapy facilities and the clinical usage of high energy proton beams for cancer treatment has substantially increased over the last decade. This is mainly due to the superior dose distribution of proton beams resulting in a reduction of side effects and a lower integral dose compared to conventional X-ray radiotherapy. More recently, the usage of metallic nanoparticles as radiosensitizers to enhance radiotherapy is receiving growing attention. While this strategy was originally intended for X-ray radiotherapy, there is currently a small number of experimental studies indicating promising results for proton therapy. However, most of these studies used low proton energies, which are less applicable to clinical practice; and very small gold nanoparticles (AuNPs). Therefore, this proof of principle study evaluates the radiosensitization effect of larger AuNPs in combination with a 200 MeV proton beam. CHO-K1 cells were exposed to a concentration of 10 μg/ml of 50 nm AuNPs for 4 hours before irradiation with a clinical proton beam at NRF iThemba LABS. AuNP internalization was confirmed by inductively coupled mass spectrometry and transmission electron microscopy, showing a random distribution of AuNPs throughout the cytoplasm of the cells and even some close localization to the nuclear membrane. The combined exposure to AuNPs and protons resulted in an increase in cell killing, which was 27.1% at 2 Gy and 43.8% at 6 Gy, compared to proton irradiation alone, illustrating the radiosensitizing potential of AuNPs. Additionally, cells were irradiated at different positions along the proton depth-dose curve to investigate the LET-dependence of AuNP radiosensitization. An increase in cytogenetic damage was observed at all depths for the combined treatment compared to protons alone, but no incremental increase with LET could be determined. In conclusion, this study confirms the potential of 50 nm AuNPs to increase the therapeutic efficacy of proton therapy.
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Affiliation(s)
- Charnay Cunningham
- Radiation Biophysics Division, Nuclear Medicine Department, iThemba LABS, National Research Foundation, Cape Town, South Africa.,Department of Medical Biosciences, Faculty of Natural Sciences, University of the Western Cape, Cape Town, South Africa
| | - Maryna de Kock
- Department of Medical Biosciences, Faculty of Natural Sciences, University of the Western Cape, Cape Town, South Africa
| | - Monique Engelbrecht
- Radiation Biophysics Division, Nuclear Medicine Department, iThemba LABS, National Research Foundation, Cape Town, South Africa.,Department of Medical Biosciences, Faculty of Natural Sciences, University of the Western Cape, Cape Town, South Africa
| | - Xanthene Miles
- Radiation Biophysics Division, Nuclear Medicine Department, iThemba LABS, National Research Foundation, Cape Town, South Africa
| | - Jacobus Slabbert
- Radiation Biophysics Division, Nuclear Medicine Department, iThemba LABS, National Research Foundation, Cape Town, South Africa
| | - Charlot Vandevoorde
- Radiation Biophysics Division, Nuclear Medicine Department, iThemba LABS, National Research Foundation, Cape Town, South Africa
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6
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Tran L, Park S. Highly sensitive detection of dengue biomarker using streptavidin-conjugated quantum dots. Sci Rep 2021; 11:15196. [PMID: 34312404 PMCID: PMC8313577 DOI: 10.1038/s41598-021-94172-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/07/2021] [Indexed: 11/24/2022] Open
Abstract
A highly sensitive immunosensor using streptavidin-conjugated quantum dots (QDs/SA) was developed to detect dengue biomarker of non-structural protein 1 (NS1) at very low concentration, so that it can probe dengue infection even in the early stage. The QDs/SA were first bound to biotinylated NS1 antibody (Ab) and the QDs/SA-Ab conjugates were then used to detect the NS1 antigen (Ag) in the Ag concentration range of 1 pM to 120 nM. The formation of QDs/SA-Ab and QDs/SA-Ab-Ag conjugates was confirmed by the measurements of field emission scanning electron microscopy (FF-SEM), field emission transmission electron microscopy (FE-TEM), dynamic light scattering (DLS), and zeta-potential. Fluorescence emission spectra of QDs/SA-Ab-Ag conjugates showed that the magnitude of fluorescence quenching was linearly proportional to the NS1 Ag concentration and it nicely followed the Stern-Volmer (SV) equation in phosphate buffer solution. However, in human plasma serum solution, the fluorescence quenching behavior was negatively deviated from the SV equation presumably due to interference by the serum component biomolecules, and it was well explained by the Lehrer equation. These results suggest that the current approach is promising because it is highly sensitive, fast, simple, and convenient, and thus it has a potential of application for point-of-care.
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Affiliation(s)
- Linh Tran
- Department of Chemical and Biochemical Engineering, Dongguk University, Pildong-ro 1-gil 30, Jung-gu, Seoul, 04620, South Korea
| | - Sangkwon Park
- Department of Chemical and Biochemical Engineering, Dongguk University, Pildong-ro 1-gil 30, Jung-gu, Seoul, 04620, South Korea.
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7
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Shipunova VO, Kolesnikova OA, Kotelnikova PA, Soloviev VD, Popov AA, Proshkina GM, Nikitin MP, Deyev SM. Comparative Evaluation of Engineered Polypeptide Scaffolds in HER2-Targeting Magnetic Nanocarrier Delivery. ACS OMEGA 2021; 6:16000-16008. [PMID: 34179645 PMCID: PMC8223436 DOI: 10.1021/acsomega.1c01811] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 05/31/2021] [Indexed: 06/01/2023]
Abstract
Targeted drug delivery is one of the most intriguing and challenging issues in modern biomedicine. For active targeting, full-size IgG molecules (150 kDa) are usually used. Recent studies have revealed that small artificial polypeptide scaffolds such as DARPins (14 kDa) and affibodies (8 kDa) are much more promising tools for drug delivery due to their small size, artificial nature, low immunogenicity, and many other properties. However, there is no comparative information on the targeting abilities of scaffold polypeptides, which should be taken into account when developing drug delivery systems (DDSs). The present work is the first comprehensive study on the comparison of the effectiveness of different HER2-targeting proteins within the architecture of nanoparticles. Namely, we synthesized trimodal nanoparticles: magnetic, fluorescent, and directed toward HER2 oncomarker on cancer cells. The magnetic particles (MPs) were covalently modified with (i) full-size IgG, 150 kDa, (ii) DARPin_G3, 14 kDa, and (iii) affibody ZHER2:342, 8 kDa. We showed that the number of DARPin_G3 and affibody ZHER2:342 molecules conjugated to the nanoparticle surface are 10 and 40 times higher, respectively, than the corresponding value for trastuzumab. Using the methods of magnetic particle quantification (MPQ)-cytometry and confocal microscopy, we showed that all types of the obtained magnetic conjugates specifically labeled HER2-overexpressing cells. Namely, we demonstrated that particle binding to HER2-positive cells is 1113 ± 39 fg/cell for MP*trastuzumab, 1431 ± 186 fg/cell for MP*ZHER2:342, and 625±21 fg/cell for MP*DARPin_G3, which are 2.77, 2.75, and 2.30 times higher than the corresponding values for control HER2-negative cells. Thus, we showed that the smallest HER2-recognizing polypeptide affibody ZHER2:342 is more effective in terms of specificity and selectivity in nanoparticle-mediated cell labeling.
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Affiliation(s)
- Victoria O. Shipunova
- Shemyakin−Ovchinnikov
Institute of Bioorganic Chemistry, Russian
Academy of Sciences, 16/10 Miklukho-Maklaya Street, Moscow 117997, Russia
- Moscow
Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny 141701, Russia
- MEPhI
(Moscow Engineering Physics Institute), Institute of Engineering Physics for Biomedicine (PhysBio), 31 Kashirskoe Shosse, Moscow 115409, Russia
- Sirius
University of Science and Technology, 1 Olympic Avenue, Sochi 354340, Russia
| | - Olga A. Kolesnikova
- Shemyakin−Ovchinnikov
Institute of Bioorganic Chemistry, Russian
Academy of Sciences, 16/10 Miklukho-Maklaya Street, Moscow 117997, Russia
| | - Polina A. Kotelnikova
- Shemyakin−Ovchinnikov
Institute of Bioorganic Chemistry, Russian
Academy of Sciences, 16/10 Miklukho-Maklaya Street, Moscow 117997, Russia
| | - Vladislav D. Soloviev
- Shemyakin−Ovchinnikov
Institute of Bioorganic Chemistry, Russian
Academy of Sciences, 16/10 Miklukho-Maklaya Street, Moscow 117997, Russia
- Sirius
University of Science and Technology, 1 Olympic Avenue, Sochi 354340, Russia
| | - Anton A. Popov
- MEPhI
(Moscow Engineering Physics Institute), Institute of Engineering Physics for Biomedicine (PhysBio), 31 Kashirskoe Shosse, Moscow 115409, Russia
| | - Galina M. Proshkina
- Shemyakin−Ovchinnikov
Institute of Bioorganic Chemistry, Russian
Academy of Sciences, 16/10 Miklukho-Maklaya Street, Moscow 117997, Russia
| | - Maxim P. Nikitin
- Shemyakin−Ovchinnikov
Institute of Bioorganic Chemistry, Russian
Academy of Sciences, 16/10 Miklukho-Maklaya Street, Moscow 117997, Russia
- Moscow
Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny 141701, Russia
- Sirius
University of Science and Technology, 1 Olympic Avenue, Sochi 354340, Russia
| | - Sergey M. Deyev
- Shemyakin−Ovchinnikov
Institute of Bioorganic Chemistry, Russian
Academy of Sciences, 16/10 Miklukho-Maklaya Street, Moscow 117997, Russia
- MEPhI
(Moscow Engineering Physics Institute), Institute of Engineering Physics for Biomedicine (PhysBio), 31 Kashirskoe Shosse, Moscow 115409, Russia
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8
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Jing H, Pálmai M, Saed B, George A, Snee PT, Hu YS. Cytosolic delivery of membrane-penetrating QDs into T cell lymphocytes: implications in immunotherapy and drug delivery. NANOSCALE 2021; 13:5519-5529. [PMID: 33688882 PMCID: PMC8029070 DOI: 10.1039/d0nr08362c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
We report single-particle characterization of membrane-penetrating semiconductor quantum dots (QDs) in T cell lymphocytes. We functionalized water-soluble CdSe/CdZnS QDs with a cell-penetrating peptide composed of an Asp-Ser-Ser (DSS) repeat sequence. DSS and peptide-free control QDs displayed concentration-dependent internalization. Intensity profiles from single-particle imaging revealed a propensity of DSS-QDs to maintain a monomeric state in the T cell cytosol, whereas control QDs formed pronounced clusters. Single-particle tracking showed a direct correlation between individual QD clusters' mobility and aggregation state. A significant portion of control QDs colocalized with an endosome marker inside the T cells, while the percentage of DSS-QDs colocalized dropped to 9%. Endocytosis inhibition abrogated the internalization of control QDs, while DSS-QD internalization only mildly decreased, suggesting an alternative cell-entry mechanism. Using 3D single-particle tracking, we captured the rapid membrane-penetrating activity of a DSS-QD. The ability to characterize membrane penetrating activities in live T cells creates inroads for the optimization of gene therapy and drug delivery through the use of novel nanomaterials.
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Affiliation(s)
- Haoran Jing
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607-7061, USA.
| | - Marcell Pálmai
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607-7061, USA.
| | - Badeia Saed
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607-7061, USA.
| | - Anne George
- Department of Oral Biology, College of Dentistry, University of Illinois at Chicago, Chicago, IL 60612-7211, USA
| | - Preston T Snee
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607-7061, USA.
| | - Ying S Hu
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607-7061, USA.
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Bejgum BC, Donovan MD. Uptake and Transport of Ultrafine Nanoparticles (Quantum Dots) in the Nasal Mucosa. Mol Pharm 2020; 18:429-440. [PMID: 33346666 DOI: 10.1021/acs.molpharmaceut.0c01074] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A wide variety of colloidal delivery systems, including polymeric nanoparticles, metal colloids, liposomes, and microemulsions have been reported to enhance the delivery of therapeutic agents across the nasal mucosa. The mechanisms involved in the uptake of these nanomaterials, especially ultrafine nanomaterials (diameters < 20 nm) through the nasal mucosa are not well understood. Fluorescent quantum dots (QDs) were used to investigate the uptake of ultrafine nanoparticles by bovine respiratory and olfactory mucosal tissues following in vitro exposure, and an inductively coupled plasma optical emission spectroscopy method was developed to quantify the amount of QDs localized within the tissues. QDs do not biodegrade or release their core materials and, as a result, this method allowed for the direct quantification of the nanoparticles themselves, rather than the measurement of a potentially dissociated drug or label. The results demonstrated that carboxylate-modified QDs (COOH-QDs) showed ∼2.5-fold greater accumulation in the epithelial and submucosal regions of olfactory tissues compared to that in respiratory tissues. Endocytic inhibitory studies showed that clathrin-dependent endocytosis, macropinocytosis, and caveolae-dependent endocytic process are all involved in the uptake of COOH-QDs into the respiratory tissues. In olfactory tissues, clathrin-dependent endocytosis is the major endocytic pathway involved in the uptake of COOH-QDs. Additional energy-independent pathways also appeared to allow the transfer of COOH-QDs within the olfactory mucosa. When polyethylene glycol-modified QDs known as PEGylated QDs (PEG-QDs) of similar size, ∼15 nm, were investigated, no nanoparticles were detected in the tissues suggesting that the PEG corona limits the interactions with endocytic and other uptake processes in the nasal epithelium. The capacity for nanoparticle uptake observed in the nasal mucosa, along with the ability of significant numbers of nanoparticles to enter the olfactory tissues using nonenergy-dependent pathways show that the pathways for ultrafine nanoparticle uptake in the nasal tissues have both drug delivery and toxicologic consequences. This places an increased importance on the careful selection of nanoparticle components and drugs intended for intranasal administration.
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Affiliation(s)
- Bhanu C Bejgum
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Maureen D Donovan
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, Iowa 52242, United States
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10
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Huang X, Chau Y. Enhanced Delivery of siRNA to Retinal Ganglion Cells by Intravitreal Lipid Nanoparticles of Positive Charge. Mol Pharm 2020; 18:377-385. [PMID: 33295773 DOI: 10.1021/acs.molpharmaceut.0c00992] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
RNAi therapy has been developed and explored for treating retinal conditions since last decades. The progression of retinal diseases including the age-related macular degeneration and glaucoma is associated with the malfunction of specific retinal cells. Therefore, to deliver therapeutic RNAi to selective retinal tissues with desired gene downregulation is crucial for the treatment of retinal diseases via RNAi therapy. Lipid-based nanoparticles are potent delivery vectors for RNAi therapeutics to achieve high gene silencing efficiency. The surface charge has been demonstrated to affect the intraocular behaviors and retinal distribution of intravitreally administered lipid nanoparticles (LNPs), which could subsequently affect the gene knockdown efficiency in specific retinal layers. Here, we evaluated three charged LNPs for their ability to deliver siRNA and facilitate gene downregulation both in vitro and in vivo. LNPs with different surface charges ranging from neutral to positive (5-34 mV) were successfully formulated. All types of charged LNPs managed gene knockdown in both mammalian cell line and primary neurons. At 48 h post intravitreal injection, neutral LNPs (6.2 mV) and mildly positive LNPs (15.9 mV) mediated limited retinal gene suppression (<10%) and the more positive LNPs (31.2 mV) led to ∼25% gene suppression in the retinal ganglion cell (RGC) layer. No gene silencing in the retinal pigmented epithelium layer was facilitated by any LNPs independent of the charges. In summary, this study has shown that positive LNPs with an optimized charge managed specific gene downregulation in the RGC layer. These RNAi carriers hold potential for the treatment of RGC-associated retinal diseases.
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Affiliation(s)
- Xiaonan Huang
- Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Clearwater Bay, Kowloon 999077, Hong Kong, China
| | - Ying Chau
- Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Clearwater Bay, Kowloon 999077, Hong Kong, China
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11
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Komalla V, Allam VSRR, Kwok PCL, Sheikholeslami B, Owen L, Jaffe A, Waters SA, Mohammad S, Oliver BG, Chen H, Haghi M. A phospholipid-based formulation for the treatment of airway inflammation in chronic respiratory diseases. Eur J Pharm Biopharm 2020; 157:47-58. [PMID: 33065219 DOI: 10.1016/j.ejpb.2020.09.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/06/2020] [Accepted: 09/26/2020] [Indexed: 12/20/2022]
Abstract
Inflammation, the major hallmark of all chronic respiratory diseases is generally managed by inhaled corticosteroids. However, long term high dose treatment can result in significant side effects. Hence, there is a medical need for non-steroidal anti-inflammatory therapies to address airway inflammation. Phospholipids have been shown to reduce inflammation in several inflammatory conditions; however, their clinical translation has been limited to liposomal formulations traditionally used as drug carriers and their biological activity has not been investigated. Here we report the first application of empty liposomes as an anti-inflammatory treatment in airway inflammation. In the current study, liposomes (UTS-001) were prepared from cholesterol and a synthetic phospholipid (DOPC). The formulation was characterised in terms of size, charge, polydispersity index, morphology and stability as colloidal suspension and freeze-dried nanoparticles. Time-dependant uptake of UTS-001 in airway epithelial cells was observed which was inhibited by nystatin demonstrating that the uptake is via the caveolae pathway. In-vitro, in primary nasal epithelial cells, UTS-001 treatment successfully attenuated IL-6 levels following TNF-α stimulation. Consistent with the in-vitro findings, in-vivo, in the ovalbumin model of allergic airway inflammation, UTS-001 significantly reduced total immune cell counts in bronchoalveolar lavage fluid and reduced airway hyperresponsiveness in response to increasing doses of methacholine challenge. Therefore, our results establish UTS-001 as a potential anti-inflammatory treatment that may be useful as a therapeutic for lung inflammatory diseases.
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Affiliation(s)
- Varsha Komalla
- Graduate School of Health, University of Technology Sydney, Chippendale, NSW 2008, Australia; Woolcock Institute of Medical Research, The University of Sydney, Glebe, NSW 2037, Australia
| | - Venkata Sita Rama Raju Allam
- Graduate School of Health, University of Technology Sydney, Chippendale, NSW 2008, Australia; Woolcock Institute of Medical Research, The University of Sydney, Glebe, NSW 2037, Australia
| | - Philip Chi Lip Kwok
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia
| | - Behjat Sheikholeslami
- Graduate School of Health, University of Technology Sydney, Chippendale, NSW 2008, Australia
| | - Louisa Owen
- School of Women's and Children's Health, Faculty of Medicine, The University of New South Wales, Kensington, NSW 2052, Australia; Molecular and Integrative Cystic Fibrosis Research Centre (miCF_RC), School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, NSW, Australia; Department of Respiratory Medicine, Sydney Children's Hospital, Sydney, NSW, Australia
| | - Adam Jaffe
- School of Women's and Children's Health, Faculty of Medicine, The University of New South Wales, Kensington, NSW 2052, Australia; Molecular and Integrative Cystic Fibrosis Research Centre (miCF_RC), School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, NSW, Australia; Department of Respiratory Medicine, Sydney Children's Hospital, Sydney, NSW, Australia
| | - Shafagh A Waters
- School of Women's and Children's Health, Faculty of Medicine, The University of New South Wales, Kensington, NSW 2052, Australia; Molecular and Integrative Cystic Fibrosis Research Centre (miCF_RC), School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, NSW, Australia; Department of Respiratory Medicine, Sydney Children's Hospital, Sydney, NSW, Australia
| | - Shiva Mohammad
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Brian Gregory Oliver
- Woolcock Institute of Medical Research, The University of Sydney, Glebe, NSW 2037, Australia; School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Hui Chen
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Mehra Haghi
- Graduate School of Health, University of Technology Sydney, Chippendale, NSW 2008, Australia.
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12
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Kukreja A, Kang B, Han S, Shin MK, Son HY, Choi Y, Lim EK, Huh YM, Haam S. Inner structure- and surface-controlled hollow MnO nanocubes for high sensitive MR imaging contrast effect. NANO CONVERGENCE 2020; 7:16. [PMID: 32394133 PMCID: PMC7214580 DOI: 10.1186/s40580-020-00227-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/29/2020] [Indexed: 05/03/2023]
Abstract
Manganese oxide (MnO) nanocubes were fabricated and their surface were modified by ligand encapsulation or ligand exchange, to render them water-soluble. And then, MnO formed the hollow structure by etching using acidic solution (phthalate buffer, pH 4.0). Depending on the ligand of the MnO surface, it increases the interaction between MnO and water molecules. Also, the hollow structure of MnO, as well as the ligand, can greatly enhance the accessibility of water molecules to metal ions by surface area-to-volume ratio. These factors provide high R1 relaxation, leading to strong T1 MRI signal. We have confirmed T1-weighted MR contrast effect using 4-kinds of MnO nanocubes (MnOEn, MnOEnHo, MnOEx and MnOExHo). They showed enough a MR contrast effect and biocompatibility. Especially, among them, MnOExHo exhibited high T1 relaxivity (r1) (6.02 mM-1 s-1), even about 1.5 times higher sensitivity than commercial T1 MR contrast agents. In vitro/in vivo studies have shown that MnOExHo provides highly sensitive T1-weighted MR imaging, thereby improving diagnostic visibility at the disease site.
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Affiliation(s)
- Aastha Kukreja
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
| | - Byunghoon Kang
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
- BioNanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141 Republic of Korea
| | - Seungmin Han
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
- Division of Cardiothoracic Surgery, Department of Surgery, University of Arizona, Tucson, AZ 85724 USA
| | - Moo-Kwang Shin
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
| | - Hye Young Son
- Department of Radiology, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
- Severance Biomedical Science Institute, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
| | - Yuna Choi
- Department of Radiology, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
| | - Eun-Kyung Lim
- BioNanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141 Republic of Korea
- YUHS-KRIBB Medical Convergence Research Institute, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113 Republic of Korea
| | - Yong-Min Huh
- Department of Radiology, College of Medicine, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
- YUHS-KRIBB Medical Convergence Research Institute, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
| | - Seungjoo Haam
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
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13
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Abdellatif AAH, Ibrahim MA, Amin MA, Maswadeh H, Alwehaibi MN, Al-Harbi SN, Alharbi ZA, Mohammed HA, Mehany ABM, Saleem I. Cetuximab Conjugated with Octreotide and Entrapped Calcium Alginate-beads for Targeting Somatostatin Receptors. Sci Rep 2020; 10:4736. [PMID: 32170176 PMCID: PMC7069942 DOI: 10.1038/s41598-020-61605-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 02/29/2020] [Indexed: 12/25/2022] Open
Abstract
There is a need to formulate oral cetuximab (CTX) for targeting colorectal cancer, which is reported to express somatostatin receptors (SSTRs). Therefore, coating CTX with a somatostatin analogue such as octreotide (OCT) is beneficial. Alginate was used to coat CTX to facilitate delivery to the gastrointestinal tract (GIT). This study aimed to deliver CTX conjugated with OCT in the form of microparticles as a GIT-targeted SSTR therapy. Both CTX and OCT were conjugated using a solvent evaporation method and the conjugated CTX-OCT was then loaded onto Ca-alginate-beads (CTX-OCT-Alg), which were characterized for drug interactions using differential scanning calorimetry (DSC), and Fourier transform infrared spectra (FTIR). Moreover, the morphology of formulated beads was examined using a scanning electron microscope (SEM). The drug content and release profile were studied using UV spectroscopy. Finally, in vitro cytotoxicity of all compounds was evaluated. The results showed homogenous conjugated CTX-OCT with a diameter of 0.4 mm. DSC showed a delay in the OCT peak that appeared after 200 °C due to small polymer interaction that shifted the OCT peak. Moreover, FTIR showed no prominent interaction. SEM showed clear empty cavities in the plain Ca-alginate-beads, while CTX-OCT-Alg showed occupied beads without cavities. CTX-OCT-Alg had a negligible release in 0.1 N HCl, while the CTX-OCT was completely released after 300 min in phosphate buffer pH 7.4. All formulations showed good antiproliferative activity compared with free drugs. The formulated CTX-OCT-Alg are a promising platform for targeting colorectal cancer through GIT.
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Affiliation(s)
- Ahmed A H Abdellatif
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia.
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt.
| | - Mohamed A Ibrahim
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
- Kayyali Chair for Pharmaceutical Industries, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed A Amin
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
| | - Hamzah Maswadeh
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
| | - Muhammed N Alwehaibi
- Pharm. D. Student, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
| | - Sultan N Al-Harbi
- Pharm. D. Student, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
| | - Zayed A Alharbi
- Pharm. D. Student, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
| | - Hamdoon A Mohammed
- Department of Medicnal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Ahmed B M Mehany
- Department of Zoology, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Imran Saleem
- School of Pharmacy & Biomolecular Sciences, Liverpool John Moores University James Parsons Building, Liverpool, UK
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14
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Price E, Gesquiere AJ. Animal simulations facilitate smart drug design through prediction of nanomaterial transport to individual tissue cells. SCIENCE ADVANCES 2020; 6:eaax2642. [PMID: 32076633 PMCID: PMC7002136 DOI: 10.1126/sciadv.aax2642] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 11/25/2019] [Indexed: 05/27/2023]
Abstract
Smart drug design for antibody and nanomaterial-based therapies allows optimization of drug efficacy and more efficient early-stage preclinical trials. The ideal drug must display maximum efficacy at target tissue sites, with transport from tissue vasculature to the cellular environment being critical. Biological simulations, when coupled with in vitro approaches, can predict this exposure in a rapid and efficient manner. As a result, it becomes possible to predict drug biodistribution within single cells of live animal tissue without the need for animal studies. Here, we successfully utilized an in vitro assay and a computational fluid dynamic model to translate in vitro cell kinetics (accounting for cell-induced degradation) to whole-body simulations for multiple species as well as nanomaterial types to predict drug distribution into individual tissue cells. We expect this work to assist in refining, reducing, and replacing animal testing, while providing scientists with a new perspective during the drug development process.
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Affiliation(s)
- Edward Price
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA
| | - Andre J. Gesquiere
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA
- Department of Materials Science and Engineering, University of Central Florida, Orlando, FL 32816, USA
- The College of Optics and Photonics (CREOL), University of Central Florida, Orlando, FL 32816, USA
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15
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Francia V, Montizaan D, Salvati A. Interactions at the cell membrane and pathways of internalization of nano-sized materials for nanomedicine. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:338-353. [PMID: 32117671 PMCID: PMC7034226 DOI: 10.3762/bjnano.11.25] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 01/27/2020] [Indexed: 05/17/2023]
Abstract
Nano-sized materials have great potential as drug carriers for nanomedicine applications. Thanks to their size, they can exploit the cellular machinery to enter cells and be trafficked intracellularly, thus they can be used to overcome some of the cellular barriers to drug delivery. Nano-sized drug carriers of very different properties can be prepared, and their surface can be modified by the addition of targeting moieties to recognize specific cells. However, it is still difficult to understand how the material properties affect the subsequent interactions and outcomes at cellular level. As a consequence of this, designing targeted drugs remains a major challenge in drug delivery. Within this context, we discuss the current understanding of the initial steps in the interactions of nano-sized materials with cells in relation to nanomedicine applications. In particular, we focus on the difficult interplay between the initial adhesion of nano-sized materials to the cell surface, the potential recognition by cell receptors, and the subsequent mechanisms cells use to internalize them. The factors affecting these initial events are discussed. Then, we briefly describe the different pathways of endocytosis in cells and illustrate with some examples the challenges in understanding how nanomaterial properties, such as size, charge, and shape, affect the mechanisms cells use for their internalization. Technical difficulties in characterizing these mechanisms are presented. A better understanding of the first interactions of nano-sized materials with cells will help to design nanomedicines with improved targeting.
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Affiliation(s)
- Valentina Francia
- Groningen Research Institute of Pharmacy, University of Groningen, 9713AV Groningen, Netherlands
| | - Daphne Montizaan
- Groningen Research Institute of Pharmacy, University of Groningen, 9713AV Groningen, Netherlands
| | - Anna Salvati
- Groningen Research Institute of Pharmacy, University of Groningen, 9713AV Groningen, Netherlands
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16
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Ahmed S, Nakaji-Hirabayashi T, Rajan R, Zhao D, Matsumura K. Cytosolic delivery of quantum dots mediated by freezing and hydrophobic polyampholytes in RAW 264.7 cells. J Mater Chem B 2019; 7:7387-7395. [PMID: 31697291 DOI: 10.1039/c9tb01184f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Quantum dots (QDs) can be delivered efficiently inside macrophages using a freeze-concentration approach. In this study, we introduced a new, facile, high concentration-based freezing technology of low toxicity. We also developed QD-conjugated new hydrophobic polyampholytes using poly-l-lysine (PLL), a naturally derived polymer, which showed sustained biocompatibility, stability over one week, and enhanced intracellular delivery. When freeze-concentration was applied, the QD-encapsulated hydrophobic polyampholytes showed a higher tendency to adsorb onto the cell membrane than the non-frozen molecules. Interestingly, we observed that the efficacy of adsorption of QDs on RAW 264.7 macrophages was higher than that on fibroblasts. Furthermore, the intracellular delivery of QDs using hydrophobic polyampholytes was higher than those of PLL and QDs. In vitro studies revealed the efficient endosomal escape of QDs in the presence of hydrophobic polyampholytes and freeze-concentration. Collectively, these observations indicated that the promising combination of freeze-concentration and hydrophobic polyampholytes may act as an effective and versatile strategy for the intracellular delivery of QDs, which can be used for biological diagnosis and therapeutic applications.
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Affiliation(s)
- Sana Ahmed
- School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), Nomi, Ishikawa 923-1292, Japan. and Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan
| | - Tadashi Nakaji-Hirabayashi
- Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan and Graduate School of Innovative Life Science, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan
| | - Robin Rajan
- School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), Nomi, Ishikawa 923-1292, Japan.
| | - Dandan Zhao
- School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), Nomi, Ishikawa 923-1292, Japan.
| | - Kazuaki Matsumura
- School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), Nomi, Ishikawa 923-1292, Japan.
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17
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Foroozandeh P, Aziz AA, Mahmoudi M. Effect of Cell Age on Uptake and Toxicity of Nanoparticles: The Overlooked Factor at the Nanobio Interface. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39672-39687. [PMID: 31633323 DOI: 10.1021/acsami.9b15533] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Clinical translation of nanotechnologies has limited success, at least in part, due to the existence of several overlooked factors on the nature of the nanosystem (e.g., physicochemical properties of nanoparticles), nanobio interfaces (e.g., protein corona composition), and the cellular characteristics (e.g., cell type). In the past decade, several ignored factors including personalized and disease-specific protein corona (a layer of formed biomolecules at the surface of nanoparticles upon their entrance into a biological fluid), incubating temperature, local temperature gradient, cell shape, and cell sex has been introduced. Here, it was hypothesized and validated cell age as another overlooked factor in the field of nanomedicine. To test our hypothesis, cellular toxicity and uptake profiles of our model nanoparticles (i.e., PEGylated quantum dots, QDs) were probed in young and senescent cells (i.e., IMR90 fibroblast cells from human fetal lung and CCD841CoN epithelial cells from human fetal colon) and the outcomes revealed substantial dependency of cell-nanoparticles interactions to the cell age. For example, it was observed that the PEGylated QDs were acutely toxic to senescent IMR90 and CCD841CoN cells, leading to lysosomal membrane permeabilization which caused cell necrosis; in contrast, the young cells were resilient to the exact same amount of QDs and the same incubation time. It was also found that the formation of protein corona could delay the QDs' toxicity on senescent cells. These findings suggest that the cellular aging process have a capacity to cause deteriorative effects on their organelles and normal functions. The outcomes of this study suggest the proof-of-concept that cell age may have critical role in biosystem responses to nanoparticle technologies. Therefore, the effect of cell age should be carefully considered on the nanobio interactions and the information about cellular age (e.g., passage number and age of the cell donor) should be included in the nanomedicine papers to facilitate clinical translation of nanotechnologies and to help scientists to better design and produce safe and efficient diagnostic/therapeutic age-specific nanoparticles.
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Affiliation(s)
| | - Azlan Abdul Aziz
- School of Physics , Universiti Sains Malaysia , 11800 Penang , Malaysia
- Nano-Biotechnology Research and Innovation (NanoBRI), Institute for Research in Molecular Medicine (INFORMM) , Universiti Sains Malaysia , 11800 Penang , Malaysia
| | - Morteza Mahmoudi
- Precision Health Program , Michigan State University , East Lansing , Michigan 48824 , United States
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18
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Price E, Gesquiere AJ. An in vitro assay and artificial intelligence approach to determine rate constants of nanomaterial-cell interactions. Sci Rep 2019; 9:13943. [PMID: 31558741 PMCID: PMC6763461 DOI: 10.1038/s41598-019-50208-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 09/05/2019] [Indexed: 12/11/2022] Open
Abstract
In vitro assays and simulation technologies are powerful methodologies that can inform scientists of nanomaterial (NM) distribution and fate in humans or pre-clinical species. For small molecules, less animal data is often needed because there are a multitude of in vitro screening tools and simulation-based approaches to quantify uptake and deliver data that makes extrapolation to in vivo studies feasible. Small molecule simulations work because these materials often diffuse quickly and partition after reaching equilibrium shortly after dosing, but this cannot be applied to NMs. NMs interact with cells through energy dependent pathways, often taking hours or days to become fully internalized within the cellular environment. In vitro screening tools must capture these phenomena so that cell simulations built on mechanism-based models can deliver relationships between exposure dose and mechanistic biology, that is biology representative of fundamental processes involved in NM transport by cells (e.g. membrane adsorption and subsequent internalization). Here, we developed, validated, and applied the FORECAST method, a combination of a calibrated fluorescence assay (CF) with an artificial intelligence-based cell simulation to quantify rates descriptive of the time-dependent mechanistic biological interactions between NMs and individual cells. This work is expected to provide a means of extrapolation to pre-clinical or human biodistribution with cellular level resolution for NMs starting only from in vitro data.
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Affiliation(s)
- Edward Price
- NanoScience Technology Center, University of Central Florida, Orlando, FL, 32826, USA
- Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Andre J Gesquiere
- NanoScience Technology Center, University of Central Florida, Orlando, FL, 32826, USA.
- Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA.
- Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, 32816, USA.
- The College of Optics and Photonics (CREOL), University of Central Florida, Orlando, FL, 32816, USA.
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19
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Belova MM, Shipunova VO, Kotelnikova PA, Babenyshev AV, Rogozhin EA, Cherednichenko MY, Deyev SM. "Green" Synthesis of Cytotoxic Silver Nanoparticles Based on Secondary Metabolites of Lavandula Angustifolia Mill. Acta Naturae 2019; 11:47-53. [PMID: 31413879 PMCID: PMC6643349 DOI: 10.32607/20758251-2019-11-2-47-53] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Indexed: 11/21/2022] Open
Abstract
In this study, we used "green" synthesis to prepare silver nanoparticles (NPs) from aqueous plant and callus extracts of the narrow-leaved lavender Lavandula angustifolia Mill. 35.4 ± 1.6 nm and 56.4 ± 2.4 nm nanoparticles, colloidally stable in phosphate-buffered saline, were synthesized using the plant extract and the callus extract, respectively. NPs were characterized by spectrophotometry, dynamic light scattering, and scanning electron microscopy. We studied the dynamics of the nanoparticle synthesis and evaluated the cytotoxic properties of the plant extract-based NPs. Modification of NPs with bovine serum albumin demonstrated that blockage of the nanoparticle surface completely suppressed NP cytotoxic activity in vitro. The synthesized NPs possess localized surface plasmon resonance properties and are of small sizes, and their surface can be modified with protein molecules, which makes them promising agents for cancer theranostics.
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Affiliation(s)
- M. M. Belova
- Russian State Agrarian University-Moscow Timiryazev Agricultural Academy, Timiryazevskaya Str. 49 , Moscow, 127550, Russia
| | - V. O. Shipunova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, GSP-7, Miklukho-Maklaya Str. 16/10, Moscow, 117997, Russia
- Moscow Institute of Physics & Technology, Kerchenskaya Str. 1 “A”, Moscow, 117303, Russia
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe sh. 31, Moscow, 115409, Russia
| | - P. A. Kotelnikova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, GSP-7, Miklukho-Maklaya Str. 16/10, Moscow, 117997, Russia
| | - A. V. Babenyshev
- Moscow Institute of Physics & Technology, Kerchenskaya Str. 1 “A”, Moscow, 117303, Russia
| | - E. A. Rogozhin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, GSP-7, Miklukho-Maklaya Str. 16/10, Moscow, 117997, Russia
| | - M. Yu. Cherednichenko
- Russian State Agrarian University-Moscow Timiryazev Agricultural Academy, Timiryazevskaya Str. 49 , Moscow, 127550, Russia
| | - S. M. Deyev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, GSP-7, Miklukho-Maklaya Str. 16/10, Moscow, 117997, Russia
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe sh. 31, Moscow, 115409, Russia
- Sechenov First Moscow State Medical University, Trubetskaya Str., 8-2, Moscow, 119991, Russia
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20
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Abdellatif AA, Aldalaen SM, Faisal W, Tawfeek HM. Somatostatin receptors as a new active targeting sites for nanoparticles. Saudi Pharm J 2018; 26:1051-1059. [PMID: 30416362 PMCID: PMC6218373 DOI: 10.1016/j.jsps.2018.05.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 05/22/2018] [Indexed: 12/11/2022] Open
Abstract
The delivery of nanoparticles through receptor-mediated cell interactions has nowadays a major attention in the area of drug targeting applications. This specific kind of targeting is mediated by localized receptors impeded into the target site with subsequent drugs internalization. Hence, this type of interaction would diminish side effects and enhance drug delivery efficacy to the target site. Somatostatin receptors (SSTRs) are one type of G protein-coupled receptors, which could be active targeted for various purposes. There are five SSTRs types (SSTR1-5) which are localized at various organs in the body and spread into different tissues. SSTRs could be considered as a promising target to various nanoparticles which is facilitated when nanoparticles are modified through specific ligand or coating to allow better binding. This review discusses the exploration of SSTRs for active targeting of nanoparticles with certain emphasize on their interaction at the cellular level.
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Affiliation(s)
- Ahmed A.H. Abdellatif
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
- Department of Pharmaceutics, Faculty of Pharmacy, Qassim University, Buraydah, 51452 Al-Qassim, Kingdom of Saudi Arabia
| | - Sa'ed M. Aldalaen
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Mutah University, Mutah, Al-Karak 61710, Jordan
| | - Waleed Faisal
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, Egypt
- School of Pharmacy, University of College Cork, Cork, Ireland
| | - Hesham M. Tawfeek
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Mutah University, Mutah, Al-Karak 61710, Jordan
- Department of Industrial Pharmacy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
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21
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Ruan L, Ge M, Huang X, Ren J. Assay of Single-Cell Apoptosis by Ensemble and Single-Molecule Fluorescence Methods: Annexin-V/Polyethylene Glycol-Functionalized Quantum Dots as Probes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:10040-10047. [PMID: 30063356 DOI: 10.1021/acs.langmuir.8b01749] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Apoptosis plays a critical role in many biological processes and the etiology of various diseases of the immune system. The study of apoptosis would allow both improving the diagnosis of certain diseases and serving as a target of drug screening. In this paper, we developed a sensitive assay of single-cell apoptosis using semiconductor quantum dots (QDs) as fluorescent-labeling probes. The principle of this assay is based on the detection of phosphatidylserine (PS) exposed on the plasma membrane during the drug-induced apoptosis. The QD-labeled annexin V (AV) was prepared to specifically target PS on the membrane of apoptotic cells, and PS was detected by fluorescent imaging, flow cytometer, and single-molecule fluorescence correlation spectroscopy (FCS). We developed the procedures for conjugation of QDs to AV and for purification of their conjugates by gel chromatography. The obtained conjugates were characterized by FCS, capillary electrophoresis, and zeta potential analyzer. We studied the nonspecific adsorption of cells to different surface-modified QDs and found that the nonspecific adsorption effects were significantly reduced by modification of QDs with polyethylene glycol in the detection of apoptosis. In this assay, the results obtained by flow cytometry were consistent with the commercial test kit. Furthermore, a home-built single-molecule FCS system was developed for in situ study the drug-induced apoptosis. We observed the significant change in the diffusion coefficients of QDs on cells during the progress of cell apoptosis. Compared with conventional methods, the fluorescent methods represented here possess high sensitivity because of the use of high photo stability and brightness QDs as labeling probes and provide the temp-spatial information on a single apoptotic cell.
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Affiliation(s)
- Lingao Ruan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , People's Republic of China
- Shanghai Laiyi Center for Biopharmaceutical R&D , 200 Niudun Road , Shanghai 201203 , People's Republic of China
| | - Mei Ge
- Shanghai Laiyi Center for Biopharmaceutical R&D , 200 Niudun Road , Shanghai 201203 , People's Republic of China
| | - Xiangyi Huang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , People's Republic of China
| | - Jicun Ren
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , People's Republic of China
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22
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Stochaj U, Rodríguez Burbano DC, Cooper DR, Kodiha M, Capobianco JA. The effects of lanthanide-doped upconverting nanoparticles on cancer cell biomarkers. NANOSCALE 2018; 10:14464-14471. [PMID: 30022175 DOI: 10.1039/c8nr01451e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Lanthanide-doped upconverting nanoparticles (Ln-UCNPs) possess optical and physicochemical properties that are promising for the design of new theranostic platforms. This applies in particular to the treatment of cancer. Towards this goal, oleate-capped-NaLuF4:Tm3+(0.5%)/Yb3+(20%)/Gd3+(30%) with an average size of 35 nm ± 2 nm were synthesized by co-precipitation. Due to their hydrophobic surface, these Ln-UCNPs produced agglomerates under cell culture conditions. To assess the cellular response to Ln-UCNPs at the molecular level, we evaluated several key aspects of tumor cell physiology. Using cancer lines of different origins, we demonstrated Ln-UCNP dependent changes of cancer cell biomarkers. Multiple cellular components that regulate tumorigenesis and cancer cell homeostasis were affected. In particular, Ln-UCNPs reduced the abundance of hsp70s, elevated DNA damage, and diminished nucleolin and B23/nucleophosmin, proteins required for the assembly of ribosomes. Treatment with Ln-UCNPs also decreased the concentration of paxillin, a focal adhesion protein that is involved in directed cell migration. Furthermore, epidermal growth factor (EGFR) levels were decreased by Ln-UCNPs for most cancer cell lines examined. Taken together, we identified several potential cancer cell targets that were affected by Ln-UCNPs. Our work thereby provides the foundation to optimize Ln-UCNPs for the targeted killing of tumor cells.
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23
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Hui Y, Wibowo D, Liu Y, Ran R, Wang HF, Seth A, Middelberg APJ, Zhao CX. Understanding the Effects of Nanocapsular Mechanical Property on Passive and Active Tumor Targeting. ACS NANO 2018; 12:2846-2857. [PMID: 29489325 DOI: 10.1021/acsnano.8b00242] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The physicochemical properties of nanoparticles (size, charge, and surface chemistry, etc.) influence their biological functions often in complex and poorly understood ways. This complexity is compounded when the nanostructures involved have variable mechanical properties. Here, we report the synthesis of liquid-filled silica nanocapsules (SNCs, ∼ 150 nm) having a wide range of stiffness (with Young's moduli ranging from 704 kPa to 9.7 GPa). We demonstrate a complex trade-off between nanoparticle stiffness and the efficiencies of both immune evasion and passive/active tumor targeting. Soft SNCs showed 3 times less uptake by macrophages than stiff SNCs, while the uptake of PEGylated SNCs by cancer cells was independent of stiffness. In addition, the functionalization of stiff SNCs with folic acid significantly enhanced their receptor-mediated cellular uptake, whereas little improvement for the soft SNCs was conferred. Further in vivo experiments confirmed these findings and demonstrated the critical role of nanoparticle mechanical properties in regulating their interactions with biological systems.
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Affiliation(s)
- Yue Hui
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , St. Lucia , Queensland 4072 , Australia
| | - David Wibowo
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , St. Lucia , Queensland 4072 , Australia
| | - Yun Liu
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , St. Lucia , Queensland 4072 , Australia
| | - Rui Ran
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , St. Lucia , Queensland 4072 , Australia
| | - Hao-Fei Wang
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , St. Lucia , Queensland 4072 , Australia
| | - Arjun Seth
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , St. Lucia , Queensland 4072 , Australia
| | - Anton P J Middelberg
- Faculty of Engineering, Computer and Mathematical Sciences , The University of Adelaide , Adelaide , South Australia 5005 , Australia
| | - Chun-Xia Zhao
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , St. Lucia , Queensland 4072 , Australia
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24
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Serpooshan V, Sheibani S, Pushparaj P, Wojcik M, Jang AY, Santoso MR, Jang JH, Huang H, Safavi-Sohi R, Haghjoo N, Nejadnik H, Aghaverdi H, Vali H, Kinsella JM, Presley J, Xu K, Yang PCM, Mahmoudi M. Effect of Cell Sex on Uptake of Nanoparticles: The Overlooked Factor at the Nanobio Interface. ACS NANO 2018. [PMID: 29536733 DOI: 10.1021/acsnano.7b06212] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Cellular uptake of nanoparticles (NPs) depends on the nature of the nanobio system including the solid nanocomponents ( e. g., physicochemical properties of NPs), nanobio interfaces ( e. g., protein corona composition), and the cellular characteristics ( e. g., cell type). In this study, we document the role of sex in cellular uptake of NPs as an "overlooked" factor in nanobio interface investigations. We demonstrate that cell sex leads to differences in NP uptake between male and female human amniotic stem cells (hAMSCs), with greater uptake by female cells. hAMSCs are one of the earliest sources of somatic stem cells. The experiments were replicated with primary fibroblasts isolated from the salivary gland of adult male and female donors of similar ages, and again the extent of NP uptake was altered by cell sex. However, in contrast to hAMSCs, uptake was greater in male cells. We also found out that female versus male amniotic stem cells exhibited different responses to reprogramming into induced pluripotent stem cells (iPSCs) by the Yamanaka factors. Thus, future studies should consider the effect of sex on the nanobio interactions to optimize clinical translation of NPs and iPSC biology and to help researchers to better design and produce safe and efficient therapeutic sex-specific NPs.
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Affiliation(s)
- Vahid Serpooshan
- Department of Biomedical Engineering , Georgia Institute of Technology & Emory University School of Medicine , Atlanta , Georgia 30322 , United States
- Department of Pediatrics , Emory University School of Medicine , Atlanta , Georgia 30322 , United States
| | - Sara Sheibani
- Department of Anatomy and Cell Biology and Facility for Electron Microscopy Research , McGill University , Montreal , Quebec H3A 0C3 , Canada
| | - Pooja Pushparaj
- Department of Bioengineering , McGill University , Montreal , Quebec H3A 0C3 , Canada
| | - Michal Wojcik
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Albert Y Jang
- Division of Cardiovascular Medicine , Stanford University , Stanford , California 94305 , United States
| | - Michelle R Santoso
- Division of Cardiovascular Medicine , Stanford University , Stanford , California 94305 , United States
| | - Joyce H Jang
- Meakins Christie Laboratories , McGill University Health Centre and McGill University , Montreal , Quebec H4A 3J1 , Canada
| | - Haina Huang
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Reihaneh Safavi-Sohi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute , Shahid Beheshti University , Tehran 1983963113 , Iran
| | - Niloofar Haghjoo
- Institute of Biochemistry and Biophysics , University of Tehran , Tehran 14174 , Iran
| | - Hossein Nejadnik
- Department of Radiology and Molecular Imaging Program at Stanford (MIPS) , Stanford School of Medicine , Stanford , California 94305 , United States
| | - Haniyeh Aghaverdi
- Department of Anesthesiology , Brigham & Women's Hospital, Harvard Medical School , Boston , Massachusetts 02115 , United States
| | - Hojatollah Vali
- Department of Anatomy and Cell Biology and Facility for Electron Microscopy Research , McGill University , Montreal , Quebec H3A 0C3 , Canada
| | | | - John Presley
- Department of Anatomy and Cell Biology and Facility for Electron Microscopy Research , McGill University , Montreal , Quebec H3A 0C3 , Canada
| | - Ke Xu
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
- Division of Molecular Biophysics and Integrated Bioimaging , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Phillip Chung-Ming Yang
- Division of Cardiovascular Medicine , Stanford University , Stanford , California 94305 , United States
| | - Morteza Mahmoudi
- Division of Cardiovascular Medicine , Stanford University , Stanford , California 94305 , United States
- Department of Anesthesiology , Brigham & Women's Hospital, Harvard Medical School , Boston , Massachusetts 02115 , United States
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25
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Shi X, He D, Tang G, Tang Q, Xiong R, Ouyang H, Yu CY. Fabrication and characterization of a folic acid-bound 5-fluorouracil loaded quantum dot system for hepatocellular carcinoma targeted therapy. RSC Adv 2018; 8:19868-19878. [PMID: 35541013 PMCID: PMC9080723 DOI: 10.1039/c8ra01025k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/02/2018] [Indexed: 02/06/2023] Open
Abstract
In the present study, we covalently coupled folic acid (FA) and 5-fluorouracil acetic acid (FUA) on the surface of quantum dots (QDs) to produce a tumor targeting drug delivery system, FA-QDs-FUA.
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Affiliation(s)
- Xiaoxin Shi
- Institute of Pharmacy & Pharmacology
- University of South China
- Hengyang
- China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
| | - Dongxiu He
- Institute of Pharmacy & Pharmacology
- University of South China
- Hengyang
- China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
| | - Guotao Tang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
- Hengyang
- China
| | - Qian Tang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
- Hengyang
- China
| | - Runde Xiong
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
- Hengyang
- China
| | - Hu Ouyang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
- Hengyang
- China
| | - Cui-yun Yu
- Institute of Pharmacy & Pharmacology
- University of South China
- Hengyang
- China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
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26
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Fontana JM, Yin H, Chen Y, Florez R, Brismar H, Fu Y. Transport and release of colloidal 3-mercaptopropionic acid-coated CdSe-CdS/ZnS core-multishell quantum dots in human umbilical vein endothelial cells. Int J Nanomedicine 2017; 12:8615-8629. [PMID: 29270011 PMCID: PMC5720035 DOI: 10.2147/ijn.s145608] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Colloidal semiconductor quantum dots (QDs) have been extensively researched and developed for biomedical applications, including drug delivery and biosensing assays. Hence, it is pivotal to understand their behavior in terms of intracellular transport and toxicological effects. In this study, we focused on 3-mercaptopropionic acid-coated CdSe-CdS/ZnS core-multishell quantum dots (3MPA-QDs) converted from the as-grown octadecylamine-coated quantum dots (ODA-QDs) and their direct and dynamic interactions with human umbilical vein endothelial cells (HUVECs). Live cell imaging using confocal fluorescence microscopy showed that 3MPA-QDs first attached to and subsequently aggregated on HUVEC plasma membrane ~25 min after QD deposition. The aggregated QDs started being internalized at ~2 h and reached their highest internalization degree at ~24 h. They were released from HUVECs after ~48 h. During the 48 h period, the HUVECs responded normally to external stimulations, grew, proliferated and wound healed without any perceptible apoptosis. Furthermore, 1) 3MPA-QDs were internalized in newly formed LysoTracker-stained early endosomes; 2) adenosine 5′-triphosphate-induced [Ca2+]i modulation caused a transient decrease in the fluorescence of 3MPA-QDs that were attached to the plasma membrane but a transient increase in the internalized 3MPA-QDs; and 3) fluorescence signal modulations of co-stained LysoTracker and QDs induced by the lysosomotropic agent Gly-Phe-β-naphthylamide were spatially co-localized and temporally synchronized. Our findings suggest that 3MPA-QDs converted from ODA-QDs are a potential nontoxic fluorescent probe for future use in clinical applications. Moreover, the photophysical strategy and techniques reported in this work are easily applicable to study of direct interactions between other nanoparticles and live cells; contributing to awareness and implementation of the safe applications of nanoparticles.
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Affiliation(s)
- Jacopo M Fontana
- Section of Cellular Biophysics, Department of Applied Physics, Royal Institute of Technology, Science for Life Laboratory, Solna
| | - Huijuan Yin
- Section of Cellular Biophysics, Department of Applied Physics, Royal Institute of Technology, Science for Life Laboratory, Solna
| | - Yun Chen
- Department of Molecular and Clinical Medicine/Clinical Physiology, The Sahlgrenska Academy and University Hospital, University of Gothenburg, Gothenburg, Sweden
| | - Ricardo Florez
- Section of Cellular Biophysics, Department of Applied Physics, Royal Institute of Technology, Science for Life Laboratory, Solna
| | - Hjalmar Brismar
- Section of Cellular Biophysics, Department of Applied Physics, Royal Institute of Technology, Science for Life Laboratory, Solna
| | - Ying Fu
- Section of Cellular Biophysics, Department of Applied Physics, Royal Institute of Technology, Science for Life Laboratory, Solna
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27
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Feng G, Liu J, Liu R, Mao D, Tomczak N, Liu B. Ultrasmall Conjugated Polymer Nanoparticles with High Specificity for Targeted Cancer Cell Imaging. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1600407. [PMID: 28932655 PMCID: PMC5604381 DOI: 10.1002/advs.201600407] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 11/21/2016] [Indexed: 05/14/2023]
Abstract
Fluorescent and biocompatible organic nanoparticles have attracted great interest in cancer detection and imaging, but the nonspecific cellular uptake has limited the detection specificity and sensitivity. Herein, the authors report the ultrasmall conjugated polymer nanoparticles (CPNs) with bright far-red/near-infrared emission for targeted cancer imaging with high specificity. The sizes of the ultrasmall CPNs are around 6 nm (CPN6), while large CPNs show sizes around 30 nm (CPN30). Moreover, CPN6 exhibits largely improved fluorescence quantum yield (η) of 41% than CPN30 (25%). Benefiting from the ultrasmall size, bare CPN6 shows largely suppressed nonspecific cellular uptake as compared to CPN30, while cyclic arginine-glycine-aspartic acid (cRGD) functionalized CPN6 (cRGD-CPN6) possesses excellent selectivity toward αvβ3 integrin overexpressed MDA-MB-231 cells over other cells in cell mixtures. The faster body clearance of CPN6 over CPN30 indicates its greater potentials as a noninvasive nanoprobe for in vivo and practical applications.
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Affiliation(s)
- Guangxue Feng
- Department of Chemical and Biomolecular EngineeringNational University of Singapore4 Engineering Drive 4117585Singapore
| | - Jie Liu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore4 Engineering Drive 4117585Singapore
| | - Rongrong Liu
- Institute of Materials Research and Engineering (IMRE)2 Fusionopolis WayInnovis136834Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular EngineeringNational University of Singapore4 Engineering Drive 4117585Singapore
| | - Nikodem Tomczak
- Institute of Materials Research and Engineering (IMRE)2 Fusionopolis WayInnovis136834Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore4 Engineering Drive 4117585Singapore
- Institute of Materials Research and Engineering (IMRE)2 Fusionopolis WayInnovis136834Singapore
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28
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Singh L, Kruger HG, Maguire GE, Govender T, Parboosing R. The role of nanotechnology in the treatment of viral infections. Ther Adv Infect Dis 2017; 4:105-131. [PMID: 28748089 PMCID: PMC5507392 DOI: 10.1177/2049936117713593] [Citation(s) in RCA: 150] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Infectious diseases are the leading cause of mortality worldwide, with viruses in particular making global impact on healthcare and socioeconomic development. In addition, the rapid development of drug resistance to currently available therapies and adverse side effects due to prolonged use is a serious public health concern. The development of novel treatment strategies is therefore required. The interaction of nanostructures with microorganisms is fast-revolutionizing the biomedical field by offering advantages in both diagnostic and therapeutic applications. Nanoparticles offer unique physical properties that have associated benefits for drug delivery. These are predominantly due to the particle size (which affects bioavailability and circulation time), large surface area to volume ratio (enhanced solubility compared to larger particles), tunable surface charge of the particle with the possibility of encapsulation, and large drug payloads that can be accommodated. These properties, which are unlike bulk materials of the same compositions, make nanoparticulate drug delivery systems ideal candidates to explore in order to achieve and/or improve therapeutic effects. This review presents a broad overview of the application of nanosized materials for the treatment of common viral infections.
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Affiliation(s)
- Lavanya Singh
- Department of Virology, National Health Laboratory Service, University of KwaZulu-Natal, Durban, South Africa
| | - Hendrik G. Kruger
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
| | - Glenn E.M. Maguire
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
| | - Thavendran Govender
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
| | - Raveen Parboosing
- Department of Virology, National Health Laboratory Service, University of KwaZulu-Natal, Durban, South Africa
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29
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Ho LWC, Yung WY, Sy KHS, Li HY, Choi CKK, Leung KCF, Lee TWY, Choi CHJ. Effect of Alkylation on the Cellular Uptake of Polyethylene Glycol-Coated Gold Nanoparticles. ACS NANO 2017; 11:6085-6101. [PMID: 28562003 DOI: 10.1021/acsnano.7b02044] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Alkyl groups (CnH2n+1) are prevalent in engineered bionanomaterials used for many intracellular applications, yet how alkyl groups dictate the interactions between nanoparticles and mammalian cells remains incomprehensively investigated. In this work, we report the effect of alkylation on the cellular uptake of densely polyethylene glycol-coated nanoparticles, which are characterized by their limited entry into mammalian cells. Specifically, we prepare densely PEGylated gold nanoparticles that bear alkyl chains of varying carbon chain lengths (n) and loading densities (termed "alkyl-PEG-AuNPs"), followed by investigating their uptake by Kera-308 keratinocytes. Strikingly, provided a modest alkyl mass percentage of 0.2% (2 orders of magnitude lower than that of conventional lipid-based NPs) in their PEG shells, dodecyl-PEG-AuNPs (n = 12) and octadecyl-PEG-AuNPs (n = 18) can enter Kera-308 cells 30-fold more than methoxy-PEG-AuNPs (no alkyl groups) and hexyl-PEG-AuNPs (n = 6) after 24 h of incubation. Such strong dependence on n is valid for all serum concentrations considered (even under serum-free conditions), although enhanced serum levels can trigger the agglomeration of alkyl-PEG-AuNPs (without permanent aggregation of the AuNP cores) and can attenuate their cellular uptake. Additionally, alkyl-PEG-AuNPs can rapidly enter Kera-308 cells via the filipodia-mediated pathway, engaging the tips of membrane protrusions and accumulating within interdigital folds. Most alkyl-PEG-AuNPs adopt the "endo-lysosomal" route of trafficking, but ∼15% of them accumulate in the cytosol. Regardless of intracellular location, alkyl-PEG-AuNPs predominantly appear as individual entities after 24 h of incubation. Our work offers insights into the incorporation of alkyl groups for designing bionanomaterials for cellular uptake and cytosolic accumulation with intracellular stability.
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Affiliation(s)
- Lok Wai Cola Ho
- Department of Electronic Engineering (Biomedical Engineering), §School of Pharmacy,⊥Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, and ‡Department of Chemistry, Hong Kong Baptist University , Kowloon, Hong Kong, China
| | - Wing-Yin Yung
- Department of Electronic Engineering (Biomedical Engineering), §School of Pharmacy,⊥Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, and ‡Department of Chemistry, Hong Kong Baptist University , Kowloon, Hong Kong, China
| | - Kwun Hei Samuel Sy
- Department of Electronic Engineering (Biomedical Engineering), §School of Pharmacy,⊥Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, and ‡Department of Chemistry, Hong Kong Baptist University , Kowloon, Hong Kong, China
| | - Ho Yin Li
- Department of Electronic Engineering (Biomedical Engineering), §School of Pharmacy,⊥Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, and ‡Department of Chemistry, Hong Kong Baptist University , Kowloon, Hong Kong, China
| | - Chun Kit K Choi
- Department of Electronic Engineering (Biomedical Engineering), §School of Pharmacy,⊥Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, and ‡Department of Chemistry, Hong Kong Baptist University , Kowloon, Hong Kong, China
| | - Ken Cham-Fai Leung
- Department of Electronic Engineering (Biomedical Engineering), §School of Pharmacy,⊥Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, and ‡Department of Chemistry, Hong Kong Baptist University , Kowloon, Hong Kong, China
| | - Thomas W Y Lee
- Department of Electronic Engineering (Biomedical Engineering), §School of Pharmacy,⊥Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, and ‡Department of Chemistry, Hong Kong Baptist University , Kowloon, Hong Kong, China
| | - Chung Hang Jonathan Choi
- Department of Electronic Engineering (Biomedical Engineering), §School of Pharmacy,⊥Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, and ‡Department of Chemistry, Hong Kong Baptist University , Kowloon, Hong Kong, China
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30
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Phuc LTM, Taniguchi A. Epidermal Growth Factor Enhances Cellular Uptake of Polystyrene Nanoparticles by Clathrin-Mediated Endocytosis. Int J Mol Sci 2017. [PMID: 28629179 PMCID: PMC5486122 DOI: 10.3390/ijms18061301] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The interaction between nanoparticles and cells has been studied extensively, but most research has focused on the effect of various nanoparticle characteristics, such as size, morphology, and surface charge, on the cellular uptake of nanoparticles. In contrast, there have been very few studies to assess the influence of cellular factors, such as growth factor responses, on the cellular uptake efficiency of nanoparticles. The aim of this study was to clarify the effects of epidermal growth factor (EGF) on the uptake efficiency of polystyrene nanoparticles (PS NPs) by A431 cells, a human carcinoma epithelial cell line. The results showed that EGF enhanced the uptake efficiency of A431 cells for PS NPs. In addition, inhibition and localization studies of PS NPs and EGF receptors (EGFRs) indicated that cellular uptake of PS NPs is related to the binding of EGF-EGFR complex and PS NPs. Different pathways are used to enter the cells depending on the presence or absence of EGF. In the presence of EGF, cellular uptake of PS NPs is via clathrin-mediated endocytosis, whereas, in the absence of EGF, uptake of PS NPs does not involve clathrin-mediated endocytosis. Our findings indicate that EGF enhances cellular uptake of PS NPs by clathrin-mediated endocytosis. This result could be important for developing safe nanoparticles and their safe use in medical applications.
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Affiliation(s)
- Le Thi Minh Phuc
- Cellular Functional Nanomaterials Group, Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
- Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan.
| | - Akiyoshi Taniguchi
- Cellular Functional Nanomaterials Group, Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
- Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan.
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31
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Jiang XY, Sarsons CD, Gomez-Garcia MJ, Cramb DT, Rinker KD, Childs SJ. Quantum dot interactions and flow effects in angiogenic zebrafish ( Danio rerio ) vessels and human endothelial cells. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:999-1010. [DOI: 10.1016/j.nano.2016.12.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 11/21/2016] [Accepted: 12/05/2016] [Indexed: 01/21/2023]
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32
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Martynenko IV, Litvin AP, Purcell-Milton F, Baranov AV, Fedorov AV, Gun'ko YK. Application of semiconductor quantum dots in bioimaging and biosensing. J Mater Chem B 2017; 5:6701-6727. [DOI: 10.1039/c7tb01425b] [Citation(s) in RCA: 200] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this review we present new concepts and recent progress in the application of semiconductor quantum dots (QD) as labels in two important areas of biology, bioimaging and biosensing.
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Affiliation(s)
- I. V. Martynenko
- BAM Federal Institute for Materials Research and Testing
- 12489 Berlin
- Germany
- ITMO University
- St. Petersburg
| | | | | | | | | | - Y. K. Gun'ko
- ITMO University
- St. Petersburg
- Russia
- School of Chemistry and CRANN
- Trinity College Dublin
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33
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Arita Y, Richards JM, Mazilu M, Spalding GC, Skelton Spesyvtseva SE, Craig D, Dholakia K. Rotational Dynamics and Heating of Trapped Nanovaterite Particles. ACS NANO 2016; 10:11505-11510. [PMID: 27966892 DOI: 10.1021/acsnano.6b07290] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We synthesize, optically trap, and rotate individual nanovaterite crystals with a mean particle radius of 423 nm. Rotation rates of up to 4.9 kHz in heavy water are recorded. Laser-induced heating due to residual absorption of the nanovaterite particle results in the superlinear behavior of the rotation rate as a function of trap power. A finite element method based on the Navier-Stokes model for the system allows us to determine the residual optical absorption coefficient for a trapped nanovaterite particle. This is further confirmed by the theoretical model. Our data show that the translational Stokes drag force and rotational Stokes drag torque need to be modified with appropriate correction factors to account for the power dissipated by the nanoparticle.
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Affiliation(s)
- Yoshihiko Arita
- SUPA, School of Physics and Astronomy, University of St. Andrews , North Haugh, St. Andrews KY16 9SS, United Kingdom
- Molecular Chirality Research Center, Graduate School of Advanced Integration Science, Chiba University , 1-33 Yayoi, Inage, Chiba 263-0022, Japan
| | - Joseph M Richards
- Illinois Wesleyan University , Bloomington, Illinois 61701, United States
| | - Michael Mazilu
- SUPA, School of Physics and Astronomy, University of St. Andrews , North Haugh, St. Andrews KY16 9SS, United Kingdom
| | - Gabriel C Spalding
- Illinois Wesleyan University , Bloomington, Illinois 61701, United States
| | - Susan E Skelton Spesyvtseva
- SUPA, School of Physics and Astronomy, University of St. Andrews , North Haugh, St. Andrews KY16 9SS, United Kingdom
| | - Derek Craig
- SUPA, School of Physics and Astronomy, University of St. Andrews , North Haugh, St. Andrews KY16 9SS, United Kingdom
| | - Kishan Dholakia
- SUPA, School of Physics and Astronomy, University of St. Andrews , North Haugh, St. Andrews KY16 9SS, United Kingdom
- Molecular Chirality Research Center, Graduate School of Advanced Integration Science, Chiba University , 1-33 Yayoi, Inage, Chiba 263-0022, Japan
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Męczyńska-Wielgosz S, Piotrowska A, Majkowska-Pilip A, Bilewicz A, Kruszewski M. Effect of Surface Functionalization on the Cellular Uptake and Toxicity of Nanozeolite A. NANOSCALE RESEARCH LETTERS 2016; 11:123. [PMID: 26935303 PMCID: PMC4775514 DOI: 10.1186/s11671-016-1334-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 02/23/2016] [Indexed: 05/29/2023]
Abstract
Extensive use of zeolite nanoparticles in many areas, including medicine, has led to the concern about an impact and possible risk of their use for human health and the environment.In our studies, we investigated an uptake, retention, and cytotoxicity of nanozeolite A (BaA) functionalized with aminopropyl or poly(ethylene glycol) (PEG) of different chain lengths using human cervical carcinoma cell line. For internalization studies, nanozeolite was labeled with (133)Ba radionuclide.The results show that in the case of PEG modification, toxicity and uptake depend on the PEG chain length. The highest toxicity has been observed for nanozeolites coated with short-length chain (Ba-silane-PEGm(MW350). Also, amine-modified nanozeolites exhibited high toxicity, while nanozeolites coated with long PEG molecules, BaA-silane-PEGm(MW1000), and BaA-silane-PEGm(MW2000), as well as unmodified nanozeolite, seem to be nontoxic.In conclusion, this study shows that uptake, retention, and toxicity of nanozeolites coated with various length PEG molecules groups depend on the molecular weight of PEG.
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Affiliation(s)
| | - Agata Piotrowska
- Institute of Nuclear Chemistry and Technology, Dorodna 16, Warsaw, 03-195, Poland.
| | | | - Aleksander Bilewicz
- Institute of Nuclear Chemistry and Technology, Dorodna 16, Warsaw, 03-195, Poland.
| | - Marcin Kruszewski
- Institute of Nuclear Chemistry and Technology, Dorodna 16, Warsaw, 03-195, Poland.
- Faculty of Medicine, University of Information Technology and Management in Rzeszów, ul. Sucharskiego 2, Rzeszów, 35-225, Poland.
- Department of Molecular Biology and Translational Research, Institute of Rural Health, Jaczewskiego 2, Lublin, 20-090, Poland.
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Oswald M, Geissler S, Goepferich A. Determination of the activity of maleimide-functionalized phospholipids during preparation of liposomes. Int J Pharm 2016; 514:93-102. [DOI: 10.1016/j.ijpharm.2016.06.116] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 06/23/2016] [Accepted: 06/24/2016] [Indexed: 01/06/2023]
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Elbaradei A, Brown SL, Miller JB, May S, Hobbie EK. Interaction of polymer-coated silicon nanocrystals with lipid bilayers and surfactant interfaces. Phys Rev E 2016; 94:042804. [PMID: 27841530 DOI: 10.1103/physreve.94.042804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Indexed: 06/06/2023]
Abstract
We use photoluminescence (PL) microscopy to measure the interaction between polyethylene-glycol-coated (PEGylated) silicon nanocrystals (SiNCs) and two model surfaces: lipid bilayers and surfactant interfaces. By characterizing the photostability, transport, and size-dependent emission of the PEGylated nanocrystal clusters, we demonstrate the retention of red PL suitable for detection and tracking with minimal blueshift after a year in an aqueous environment. The predominant interaction measured for both interfaces is short-range repulsion, consistent with the ideal behavior anticipated for PEGylated phospholipid coatings. However, we also observe unanticipated attractive behavior in a small number of scenarios for both interfaces. We attribute this anomaly to defective PEG coverage on a subset of the clusters, suggesting a possible strategy for enhancing cellular uptake by controlling the homogeneity of the PEG corona. In both scenarios, the shape of the apparent potential is modeled through the free or bound diffusion of the clusters near the confining interface.
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Affiliation(s)
- Ahmed Elbaradei
- North Dakota State University, Fargo, North Dakota 58108, USA
| | - Samuel L Brown
- North Dakota State University, Fargo, North Dakota 58108, USA
| | - Joseph B Miller
- North Dakota State University, Fargo, North Dakota 58108, USA
| | - Sylvio May
- North Dakota State University, Fargo, North Dakota 58108, USA
| | - Erik K Hobbie
- North Dakota State University, Fargo, North Dakota 58108, USA
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Peuschel H, Ruckelshausen T, Kiefer S, Silina Y, Kraegeloh A. Penetration of CdSe/ZnS quantum dots into differentiated vs undifferentiated Caco-2 cells. J Nanobiotechnology 2016; 14:70. [PMID: 27669686 PMCID: PMC5037864 DOI: 10.1186/s12951-016-0222-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 09/12/2016] [Indexed: 12/11/2022] Open
Abstract
Background Quantum dots (QDs) have great potential as fluorescent labels but cytotoxicity relating to extra- and intracellular degradation in biological systems has to be addressed prior to biomedical applications. In this study, human intestinal cells (Caco-2) grown on transwell membranes were used to study penetration depth, intracellular localization, translocation and cytotoxicity of CdSe/ZnS QDs with amino and carboxyl surface modifications. The focus of this study was to compare the penetration depth of QDs in differentiated vs undifferentiated cells using confocal microscopy and image processing. Results Caco-2 cells were exposed to QDs with amino (NH2) and carboxyl (COOH) surface groups for 3 days using a concentration of 45 µg cadmium ml−1. Image analysis of confocal/multiphoton microscopy z-stacks revealed no penetration of QDs into the cell lumen of differentiated Caco-2 cells. Interestingly, translocation of cadmium ions onto the basolateral side of differentiated monolayers was observed using high resolution inductively coupled plasma mass spectrometry (ICP-MS). Membrane damage was neither detected after short nor long term incubation in Caco-2 cells. On the other hand, intracellular localization of QDs after exposure to undifferentiated cells was observed and QDs were partially located within lysosomes. Conclusions In differentiated Caco-2 monolayers, representing a model for small intestinal enterocytes, no penetration of amino and carboxyl functionalized CdSe/ZnS QDs into the cell lumen was detected using microscopy analysis and image processing. In contrast, translocation of cadmium ions onto the basolateral side could be detected using ICP-MS. However, even after long term incubation, the integrity of the cell monolayer was not impaired and no cytotoxic effects could be detected. In undifferentiated Caco-2 cells, both QD modifications could be found in the cell lumen. Only to some extend, QDs were localized in endosomes or lysosomes in these cells. The results indicate that the differentiation status of Caco-2 cells is an important factor in internalization and localization studies using Caco-2 cells. Furthermore, a combination of microscopy analysis and sensitive detection techniques like ICP-MS are necessary for studying the interaction of cadmium containing QDs with cells. Electronic supplementary material The online version of this article (doi:10.1186/s12951-016-0222-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Henrike Peuschel
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123, Saarbrücken, Germany
| | - Thomas Ruckelshausen
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123, Saarbrücken, Germany
| | - Silke Kiefer
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123, Saarbrücken, Germany
| | - Yuliya Silina
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123, Saarbrücken, Germany
| | - Annette Kraegeloh
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123, Saarbrücken, Germany.
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Li Y, Gao L, Tan X, Li F, Zhao M, Peng S. Lipid rafts-mediated endocytosis and physiology-based cell membrane traffic models of doxorubicin liposomes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:1801-11. [DOI: 10.1016/j.bbamem.2016.04.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 03/09/2016] [Accepted: 04/13/2016] [Indexed: 12/01/2022]
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Erdoğar N, Esendağlı G, Nielsen TT, Şen M, Öner L, Bilensoy E. Design and optimization of novel paclitaxel-loaded folate-conjugated amphiphilic cyclodextrin nanoparticles. Int J Pharm 2016; 509:375-390. [PMID: 27282534 DOI: 10.1016/j.ijpharm.2016.05.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 04/25/2016] [Accepted: 05/21/2016] [Indexed: 12/31/2022]
Abstract
As nanomedicines are gaining momentum in the therapy of cancer, new biomaterials emerge as alternative platforms for the delivery of anticancer drugs with bioavailability problems. In this study, two novel amphiphilic cyclodextrins (FCD-1 and FCD-2) conjugated with folate group to enable active targeting to folate positive breast tumors were introduced. The objective of this study was to develop and characterize new folated-CD nanoparticles via 3(2) factorial design for optimal final parameters. Full physicochemical characterization studies were performed. Blank and paclitaxel loaded FCD-1 and FCD-2 nanoparticles remained within the range of 70-275nm and 125-185nm, respectively. Zeta potential values were neutral and -20mV for FCD-1 and FCD-2 nanoparticles, respectively. Drug release studies showed initial burst release followed by a longer sustained release. Blank nanoparticles had no cytotoxicity against L929 cells. T-47D and ZR-75-1 human breast cancer cells with different levels of folate receptor expression were used to assess anti-cancer efficacy. Through targeting the folate receptor, these nanoparticles were efficiently engulfed by the breast cancer cells. Additionally, breast cancer cells became more sensitive to cytotoxic and/or cytostatic effects of PCX delivered by FCD-1 and FCD-2. In conclusion, these novel folate-conjugated cyclodextrin nanoparticles can therefore be considered as promising alternative systems for safe and effective delivery of paclitaxel with a folate-dependent mechanism.
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Affiliation(s)
- Nazlı Erdoğar
- Hacettepe University Faculty of Pharmacy, Department of Pharmaceutical Technology, 06100 Sıhhiye-Ankara, Turkey
| | - Güneş Esendağlı
- Hacettepe University, Cancer Institute, Department of Basic Oncology, 06100 Sıhhiye-Ankara, Turkey
| | - Thorbjorn T Nielsen
- University of Aalborg, Faculty of Engineering and Science, Department of Biotechnology, Chemistry and Environmental Engineering, 9000 Aalborg, Denmark
| | - Murat Şen
- Hacettepe University, Faculty of Science, Department of Chemistry, 06800 Beytepe-Ankara, Turkey
| | - Levent Öner
- Hacettepe University Faculty of Pharmacy, Department of Pharmaceutical Technology, 06100 Sıhhiye-Ankara, Turkey
| | - Erem Bilensoy
- Hacettepe University Faculty of Pharmacy, Department of Pharmaceutical Technology, 06100 Sıhhiye-Ankara, Turkey.
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40
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Heat shock mediated labelling of Pseudomonas aeruginosa with quantum dots. Colloids Surf B Biointerfaces 2016; 142:259-265. [DOI: 10.1016/j.colsurfb.2016.02.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 01/27/2016] [Accepted: 02/24/2016] [Indexed: 01/02/2023]
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41
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Abdellatif AAH, Zayed G, El-Bakry A, Zaky A, Saleem IY, Tawfeek HM. Novel gold nanoparticles coated with somatostatin as a potential delivery system for targeting somatostatin receptors. Drug Dev Ind Pharm 2016; 42:1782-91. [PMID: 27032509 DOI: 10.3109/03639045.2016.1173052] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Targeting of G-protein coupled receptors (GPCRs) like somatostatin-14 (SST-14) could have a potential interest in delivery of anti-cancer agents to tumor cells. Attachment of SST to different nano-carriers e.g. polymeric nanoparticles is limited due to the difficulty of interaction between SST itself and those nano-carriers. Furthermore, the instability problems associated with the final formulation. Attaching of SST to gold nanoparticles (AuNPs) using the positive and negative charge of SST and citrate-AuNPs could be considered a new technique to get stable non-aggregated AuNPs coated with SST. Different analyses techniques have been performed to proof the principle of coating between AuNPs and SST. Furthermore, cellular uptake studies on HCC-1806, HELA and U-87 cell lines has been investigated to show the ability of AuNPs coated SST to enter the cells via SST receptors. Dynamic light scattering (DLS) indicated a successful coating of SST on the MUA-AuNPs surface. Furthermore, all the performed analysis including DLS, SDS-PAGE and UV-VIS absorption spectra indicated a successful coating of AuNPs with SST. Cellular uptake studies on HCC-1806, HELA and U-87 cell lines showed that the number of AuNPs-SST per cell is signiflcantly higher compared to citrate-AuNPs when quantified using inductively coupled plasma spectroscopy. Moreover, the binding of AuNPs-SST to cells can be suppressed by addition of antagonist, indicating that the binding of AuNPs-SST to cells is due to receptor-specific binding. In conclusion, AuNPs could be attached to SST via adsorption to get stable AuNPs coated SST. This new formulation has a potential to target SST receptors localized in many normal and tumor cells.
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Affiliation(s)
- Ahmed A H Abdellatif
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Al-Azhar University , Assiut , Egypt
| | - Gamal Zayed
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Al-Azhar University , Assiut , Egypt
| | - Asmaa El-Bakry
- b Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Al-Azhar University , Cairo , Egypt
| | - Alaa Zaky
- b Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Al-Azhar University , Cairo , Egypt
| | - Imran Y Saleem
- c School of Pharmacy and Biomolecular Science , Liverpool John Moores University , Liverpool , UK
| | - Hesham M Tawfeek
- d Department of Industrial Pharmacy, Faculty of Pharmacy , Assiut University , Assiut , Egypt
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42
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Shang L, Yang L, Wang H, Nienhaus GU. In Situ Monitoring of the Intracellular Stability of Nanoparticles by Using Fluorescence Lifetime Imaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:868-873. [PMID: 26708212 DOI: 10.1002/smll.201503316] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 11/22/2015] [Indexed: 06/05/2023]
Abstract
FLIMaging nanoparticle degradation: semiconductor and metal nanoparticle degradation has been observed in live cells over 3 d via the change of the characteristic luminescence lifetime using fluorescence lifetime imaging microscopy (FLIM). Thus, FLIM is a simple yet robust tool to examine the intracellular stability of photoluminescent nanoparticles in live cells, tissues, and organisms.
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Affiliation(s)
- Li Shang
- Institute of Applied Physics, Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
| | - Linxiao Yang
- Institute of Applied Physics, Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
| | - Haixia Wang
- Institute of Applied Physics, Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
| | - Gerd Ulrich Nienhaus
- Institute of Applied Physics, Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
- Institute of Nanotechnology and Institute of Toxicology and Genetics, Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
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Gharatape A, Milani M, Rasta SH, Pourhassan-Moghaddam M, Ahmadi-Kandjani S, Davaran S, Salehi R. A novel strategy for low level laser-induced plasmonic photothermal therapy: the efficient bactericidal effect of biocompatible AuNPs@(PNIPAAM-co-PDMAEMA, PLGA and chitosan). RSC Adv 2016. [DOI: 10.1039/c6ra23213b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bactericidal effect of modified gold nanoparticles based on plasmonic photothermal therapy.
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Affiliation(s)
- Alireza Gharatape
- Department of Medical Nanotechnology
- School of Advanced Medical Science
- Tabriz University of Medical Science
- Tabriz
- Iran
| | - Morteza Milani
- Department of Medical Nanotechnology
- School of Advanced Medical Science
- Tabriz University of Medical Science
- Tabriz
- Iran
| | - Seyed Hossein Rasta
- School of Medical Sciences
- University of Aberdeen
- Aberdeen AB24 5DT
- UK
- Department of Medical Bioengineering
| | - Mohammad Pourhassan-Moghaddam
- Department of Medical Biotechnology
- School of Advanced Medical Science
- Tabriz University of Medical Sciences
- Tabriz
- Iran
| | | | - Soodabeh Davaran
- Drug Applied Research Center and Department of Medicinal Chemistry
- Faculty of Pharmacy
- Tabriz University of Medical Science
- Tabriz
- Iran
| | - Roya Salehi
- Research Center for Pharmaceutical Nanotechnology and Department of Medical Nanotechnology
- School of Advanced Medical Science
- Tabriz University of Medical Science
- Tabriz
- Iran
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Arshad E, Anas A, Asok A, Jasmin C, Pai SS, Bright Singh IS, Mohandas A, Biju V. Fluorescence detection of the pathogenic bacteria Vibrio harveyi in solution and animal cells using semiconductor quantum dots. RSC Adv 2016. [DOI: 10.1039/c5ra24161h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Irreversible binding of luminescent quantum dots to microbial cell surface enables easy detection of pathogens and validation of microbial infection pathways.
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Affiliation(s)
- Esha Arshad
- National Centre for Aquatic Animal Health
- Cochin University of Science and Technology
- Kochi 682 016
- India
| | - Abdulaziz Anas
- Council of Scientific and Industrial Research (CSIR)-National Institute of Oceanography (NIO)
- Regional Centre Cochin
- Kochi 682 018
- India
| | - Aparna Asok
- National Centre for Aquatic Animal Health
- Cochin University of Science and Technology
- Kochi 682 016
- India
| | - C. Jasmin
- Council of Scientific and Industrial Research (CSIR)-National Institute of Oceanography (NIO)
- Regional Centre Cochin
- Kochi 682 018
- India
| | - Somnath S. Pai
- Amity Institute of Virology and Immunology
- Amity University
- Noida
- India
| | - I. S. Bright Singh
- National Centre for Aquatic Animal Health
- Cochin University of Science and Technology
- Kochi 682 016
- India
| | - A. Mohandas
- National Centre for Aquatic Animal Health
- Cochin University of Science and Technology
- Kochi 682 016
- India
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Manna A, Pramanik S, Tripathy A, Moradi A, Radzi Z, Pingguan-Murphy B, Hasnan N, Abu Osman NA. Development of biocompatible hydroxyapatite–poly(ethylene glycol) core–shell nanoparticles as an improved drug carrier: structural and electrical characterizations. RSC Adv 2016. [DOI: 10.1039/c6ra21210g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A model of a controlled drug release mechanism of a dielectric core–shell composite carrier.
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Affiliation(s)
- Ayan Manna
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
| | - Sumit Pramanik
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
| | - Ashis Tripathy
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
| | - Ali Moradi
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
| | - Zamri Radzi
- Department of Paediatric Dentistry & Orthodontics
- Faculty of Dentistry
- University of Malaya
- Kuala Lumpur – 50603
- Malaysia
| | - Belinda Pingguan-Murphy
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
| | - Nazirah Hasnan
- Department of Rehabilitation Medicine
- Faculty of Medicine
- University of Malaya
- Kuala Lumpur – 50603
- Malaysia
| | - Noor Azuan Abu Osman
- Centre for Applied Biomechanics
- Department of Biomedical Engineering
- Faculty of Engineering
- University of Malaya
- Kuala Lumpur – 50603
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Vedunova MV, Mishchenko TA, Mitroshina EV, Ponomareva NV, Yudintsev AV, Generalova AN, Deyev SM, Mukhina IV, Semyanov AV, Zvyagin AV. Cytotoxic effects of upconversion nanoparticles in primary hippocampal cultures. RSC Adv 2016. [DOI: 10.1039/c6ra01272h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The research demonstrated that upconversion nanoparticles (UCNPs) are toxic to nervous cells. The cytotoxic severity depends on surface modification of UCNPs.
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47
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Sasaki A, Nagatomo K, Ono K, Yamamoto T, Otsuka Y, Teshima T, Yamada K. Uptake of a fluorescent L-glucose derivative 2-NBDLG into three-dimensionally accumulating insulinoma cells in a phloretin-sensitive manner. Hum Cell 2015; 29:37-45. [PMID: 26553070 PMCID: PMC4705143 DOI: 10.1007/s13577-015-0125-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 10/10/2015] [Indexed: 01/21/2023]
Abstract
Of two stereoisomers of glucose, only d- and not l-glucose is abundantly found in nature, being utilized as an essential fuel by most organisms. The uptake of d-glucose into mammalian cells occurs through glucose transporters such as GLUTs, and this process has been effectively monitored by a fluorescent d-glucose derivative 2-[N-(7-Nitrobenz-2-oxa-1,3-diazol-4-yl)amino]-2-deoxy-d-glucose (2-NBDG) at the single cell level. However, since fluorescence is an arbitrary measure, we have developed a fluorescent analog of l-glucose 2-[N-(7-Nitrobenz-2-oxa-1,3-diazol-4-yl)amino]-2-deoxy-l-glucose (2-NBDLG), as a negative control substrate for more accurately identifying the stereoselectivity of the uptake. Interestingly, a small portion of mouse insulinoma cells MIN6 abundantly took up 2-NBDLG at a late culture stage (≳10 days in vitro, DIV) when multi-cellular spheroids exhibiting heterogeneous nuclei were formed, whereas no such uptake was detected at an early culture stage (≲6 DIV). The 2-NBDLG uptake was persistently observed in the presence of a GLUT inhibitor cytochalasin B. Neither d- nor l-glucose in 50 mM abolished the uptake. No significant inhibition was detected by inactivating sodium/glucose cotransporters (SGLTs) with Na+-free condition. To our surprise, the 2-NBDLG uptake was totally inhibited by phloretin, a broad spectrum inhibitor against transporters/channels including GLUTs and aquaporins. From these, a question might be raised if non-GLUT/non-SGLT pathways participate in the 2-NBDLG uptake into spheroid-forming MIN6 insulinoma. It might also be worthwhile investigating whether 2-NBDLG can be used as a functional probe for detecting cancer, since the nuclear heterogeneity is among critical features of malignancy.
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Affiliation(s)
- Ayako Sasaki
- Department of Physiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Katsuhiro Nagatomo
- Department of Physiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Koki Ono
- Department of Physiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Toshihiro Yamamoto
- Peptide Institute, Inc., Saito Research Center, Ibaraki, Osaka, 567-0085, Japan.,Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Yuji Otsuka
- Peptide Institute, Inc., Saito Research Center, Ibaraki, Osaka, 567-0085, Japan
| | - Tadashi Teshima
- Peptide Institute, Inc., Saito Research Center, Ibaraki, Osaka, 567-0085, Japan
| | - Katsuya Yamada
- Department of Physiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan.
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Radu BM, Radu M, Tognoli C, Benati D, Merigo F, Assfalg M, Solani E, Stranieri C, Ceccon A, Fratta Pasini AM, Cominacini L, Bramanti P, Osculati F, Bertini G, Fabene PF. Are they in or out? The elusive interaction between Qtracker®800 vascular labels and brain endothelial cells. Nanomedicine (Lond) 2015; 10:3329-42. [DOI: 10.2217/nnm.15.120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Aim: Qtracker®800 Vascular labels (Qtracker®800) are promising biomedical tools for high-resolution vasculature imaging; their effects on mouse and human endothelia, however, are still unknown. Materials & methods: Qtracker®800 were injected in Balb/c mice, and brain endothelium uptake was investigated by transmission electron microscopy 3-h post injection. We then investigated, in vitro, the effects of Qtracker®800 exposure on mouse and human endothelial cells by calcium imaging. Results: Transmission electron microscopy images showed nanoparticle accumulation in mouse brain endothelia. A subset of mouse and human endothelial cells generated intracellular calcium transients in response to Qtracker®800. Conclusion: Qtracker®800 nanoparticles elicit endothelial functional responses, which prompts biomedical safety evaluations and may bias the interpretation of experimental studies involving vascular imaging.
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Affiliation(s)
- Beatrice Mihaela Radu
- Section of Anatomy & Histology, Department of Neurological & Movement Sciences, University of Verona, Verona 37134, Italy
- Department of Anatomy, Animal Physiology & Biophysics, Faculty of Biology, University of Bucharest, Bucharest 050095, Romania
| | - Mihai Radu
- Section of Anatomy & Histology, Department of Neurological & Movement Sciences, University of Verona, Verona 37134, Italy
- Department of Life & Environmental Physics, ‘Horia Hulubei’ National Institute for Physics & Nuclear Engineering, Magurele 077125, Romania
| | - Cristina Tognoli
- Section of Anatomy & Histology, Department of Neurological & Movement Sciences, University of Verona, Verona 37134, Italy
| | - Donatella Benati
- Section of Anatomy & Histology, Department of Neurological & Movement Sciences, University of Verona, Verona 37134, Italy
| | - Flavia Merigo
- Section of Anatomy & Histology, Department of Neurological & Movement Sciences, University of Verona, Verona 37134, Italy
| | - Michael Assfalg
- Department of Biotechnology, University of Verona, Verona 37134, Italy
| | - Erika Solani
- Section of Internal Medicine, Department of Medicine, University of Verona, Verona 37134, Italy
| | - Chiara Stranieri
- Section of Internal Medicine, Department of Medicine, University of Verona, Verona 37134, Italy
| | - Alberto Ceccon
- Department of Biotechnology, University of Verona, Verona 37134, Italy
| | | | - Luciano Cominacini
- Section of Internal Medicine, Department of Medicine, University of Verona, Verona 37134, Italy
| | | | - Francesco Osculati
- Section of Anatomy & Histology, Department of Neurological & Movement Sciences, University of Verona, Verona 37134, Italy
- IRCCS Centro Neurolesi ‘Bonino Pulejo’, Messina, Italy
| | - Giuseppe Bertini
- Section of Anatomy & Histology, Department of Neurological & Movement Sciences, University of Verona, Verona 37134, Italy
| | - Paolo Francesco Fabene
- Section of Anatomy & Histology, Department of Neurological & Movement Sciences, University of Verona, Verona 37134, Italy
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Agarwal R, Jurney P, Raythatha M, Singh V, Sreenivasan SV, Shi L, Roy K. Effect of shape, size, and aspect ratio on nanoparticle penetration and distribution inside solid tissues using 3D spheroid models. Adv Healthc Mater 2015; 4:2269-80. [PMID: 26376024 DOI: 10.1002/adhm.201500441] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 07/30/2015] [Indexed: 12/12/2022]
Abstract
Efficient penetration and uniform distribution of nanoparticles (NPs) inside solid tissues and tumors is paramount to their therapeutic and diagnostic success. While many studies have reported the effect of NP size and charge on intratissue distribution, role of shape, and aspect ratio on NP transport inside solid tissues remain unclear. Here experimental and theoretical studies are reported on how nanoscale geometry of Jet and Flash Imprint Lithography-fabricated, polyethylene-glycol-based anionic nanohydrogels affect their penetration and distribution inside 3D spheroids, a model representing the intervascular region of solid, tumor-like tissues. Unexpectedly, low aspect ratio cylindrical NPs (H/D ≈0.3; disk-like particles, 100 nm height, and 325 nm diameter) show maximal intratissue delivery (>50% increase in total cargo delivered) and more uniform penetration compared to nanorods or smaller NPs of the same shape. This is in contrast to spherical NPs where smaller NP size resulted in deeper, more uniform penetration. Our results provide fundamental new knowledge on NP transport inside solid tissues and further establish shape and aspect ratio as important design parameters in developing more efficient, better penetrating, nanocarriers for drug, or contrast-agent delivery.
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Affiliation(s)
- Rachit Agarwal
- The Woodruff School of Mechanical Engineering; Georgia Institute of Technology; Atlanta GA 30332 USA
| | - Patrick Jurney
- Department of Mechanical EngineeringThe University of Texas at Austin; Austin TX 78712 USA
| | - Mansi Raythatha
- Department of Biomedical Engineering; The University of Texas at Austin; Austin TX 78712 USA
| | - Vikramjit Singh
- Department of Mechanical EngineeringThe University of Texas at Austin; Austin TX 78712 USA
| | | | - Li Shi
- Department of Mechanical EngineeringThe University of Texas at Austin; Austin TX 78712 USA
| | - Krishnendu Roy
- The Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University; Georgia Institute of Technology; Atlanta GA 30332 USA
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50
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Timor R, Weitman H, Waiskopf N, Banin U, Ehrenberg B. PEG-Phospholipids Coated Quantum Rods as Amplifiers of the Photosensitization Process by FRET. ACS APPLIED MATERIALS & INTERFACES 2015; 7:21107-21114. [PMID: 26334672 DOI: 10.1021/acsami.5b04318] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Singlet oxygen ((1)O2) generated upon photostimulation of photosensitizer molecules is a highly reactive specie which is utilized in photodynamic therapy. Recent studies have shown that semiconductor nanoparticles can be used as donors in fluorescence resonance energy transfer (FRET) process to excite attached photosensitizer molecules. In these studies, their unique properties, such as low nanoscale size, long-term photostability, wide broad absorbance band, large absorption cross section, and narrow and tunable emission bands were used to provide advantages over the traditional methods to produce singlet oxygen. Previous studies that achieved this goal, however, showed some limitations, such as low FRET efficiency, poor colloidal stability, nonspecific interactions, and/or complex preparation procedure. In this work, we developed and characterized a novel system of semiconductor quantum rods (QRs) and the photosensitizer meso-tetra(hydroxyphenyl) chlorin (mTHPC), as a model system that produces singlet oxygen without these limitations. A simple two-step preparation method is shown; Hydrophobic CdSe/CdS QRs are solubilized in aqueous solutions by encapsulation with lecithin and PEGylated phospholipid (PEG-PL) of two lipid lengths: PEG350 or PEG2000. Then, the hydrophobic photosensitizer mTHPC, was intercalated into the new amphiphilic PEG-PL coating of the QR, providing a strong attachment to the nanoparticle without covalent linkage. These PEGylated QR (eQR)-mTHPC nanocomposites show efficient FRET processes upon light stimulation of the QR component which results in efficient production of singlet oxygen. The results demonstrate the potential for future use of this concept in photodynamic therapy schemes.
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Affiliation(s)
- Reut Timor
- Department of Physics and Institute of Nanotechnology and Advanced Materials, Bar Ilan University , Ramat Gan 52900, Israel
| | - Hana Weitman
- Department of Physics and Institute of Nanotechnology and Advanced Materials, Bar Ilan University , Ramat Gan 52900, Israel
| | - Nir Waiskopf
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Uri Banin
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
| | - Benjamin Ehrenberg
- Department of Physics and Institute of Nanotechnology and Advanced Materials, Bar Ilan University , Ramat Gan 52900, Israel
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