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Mow RJ, Srinivasan A, Bolay E, Merlin D, Yang C. Fluorescent Labeling and Imaging of IL-22 mRNA-Loaded Lipid Nanoparticles. Bio Protoc 2024; 14:e4994. [PMID: 38798981 PMCID: PMC11116892 DOI: 10.21769/bioprotoc.4994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 04/28/2024] [Accepted: 05/01/2024] [Indexed: 05/29/2024] Open
Abstract
Lipid nanoparticle (LNP)-based drug delivery systems (DDSs) are widely recognized for their ability to enhance efficient and precise delivery of therapeutic agents, including nucleic acids like DNA and mRNA. Despite this acknowledgment, there is a notable knowledge gap regarding the systemic biodistribution and organ accumulation of these nanoparticles. The ability to track LNPs in vivo is crucial for understanding their fate within biological systems. Fluorescent labeling of LNPs facilitates real-time tracking, quantification, and visualization of their behavior within biological systems, providing valuable insights into biodistribution, cellular uptake, and the optimization of drug delivery strategies. Our prior research established reversely engineered LNPs as an exceptional mRNA delivery platform for treating ulcerative colitis. This study presents a detailed protocol for labeling interleukin-22 (IL-22) mRNA-loaded LNPs, their oral administration to mice, and visualization of DiR-labeled LNPs biodistribution in the gastrointestinal tract using IVIS spectrum. This fluorescence-based approach will assist researchers in gaining a dynamic understanding of nanoparticle fate in other models of interest. Key features • This protocol is developed to assess the delivery of IL-22 mRNA to ulcerative colitis sites using lipid nanoparticles. • This protocol uses fluorescent DiR dye for imaging of IL-22 mRNA-loaded lipid nanoparticles in the gastrointestinal tract of mice. • This protocol employs the IVIS spectrum for imaging.
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Affiliation(s)
- Rabeya Jafrin Mow
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Digestive Disease Research Group, Georgia State University, Atlanta, GA, USA
| | | | - Eunice Bolay
- Department of Chemistry, College of Arts & Sciences, Georgia State University, Atlanta, GA, USA
| | - Didier Merlin
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Digestive Disease Research Group, Georgia State University, Atlanta, GA, USA
- Atlanta Veterans Affairs Medical Center, Decatur, GA, USA
| | - Chunhua Yang
- Institute for Biomedical Sciences, Center for Diagnostics and Therapeutics, Digestive Disease Research Group, Georgia State University, Atlanta, GA, USA
- Atlanta Veterans Affairs Medical Center, Decatur, GA, USA
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2
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Yehia RM, Teaima MH, Ragaie MH, Elmazar MM, Attia DA, El-Nabarawi MA. Resolving acne with optimized adapalene microspongeal gel, in vivo and clinical evaluations. Sci Rep 2024; 14:1359. [PMID: 38228631 DOI: 10.1038/s41598-024-51392-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/04/2024] [Indexed: 01/18/2024] Open
Abstract
In our pursuit of enhancing acne treatment while minimizing side effects, we developed tailored Adapalene microsponges (MS) optimized using a Box-Behnken design 33. The independent variables, Eudragit RS100 percentage in the polymer mixture, organic phase volume, and drug to polymer percentage, were explored. The optimized formulation exhibited remarkable characteristics, with a 98.3% ± 1.6 production yield, 97.3% ± 1.64 entrapment efficiency, and a particle size of 31.8 ± 1.1 µm. Notably, it achieved a 24 h cumulative drug release of 75.1% ± 1.4. To delve deeper into its efficacy, we evaluated the optimized microspongeal-gel in vitro, in vivo, and clinically. It demonstrated impressive retention in the pilosebaceous unit, a target for acne treatment. Comparative studies between our optimized Adapalene microspongeal gel and marketed Adapalene revealed superior performance. In vivo studies on Propionibacterium acnes-infected mice ears showed a remarkable 97% reduction in ear thickness, accompanied by a significant decrease in inflammatory signs and NF-κB levels, as confirmed by histopathological and histochemical examination. Moreover, in preliminary clinical evaluation, it demonstrated outstanding effectiveness in reducing comedonal lesions while causing fewer irritations. This not only indicates its potential for clinical application but also underscores its ability to enhance patient satisfaction, paving the way for future commercialization.
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Affiliation(s)
- Rania M Yehia
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The British University in Egypt (BUE), Suez Desert Road, El Sherouk City, Cairo, 1183, Egypt.
| | - Mahmoud H Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Maha H Ragaie
- Department of Dermatology, STDs and Andrology, Faculty of Medicine, Minia University, Al Minya, Egypt
| | - Mohamed M Elmazar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, The British University in Egypt (BUE), Cairo, Egypt
| | - Dalia A Attia
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The British University in Egypt (BUE), Suez Desert Road, El Sherouk City, Cairo, 1183, Egypt
| | - Mohamed A El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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3
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Dual-Labelled Nanoparticles Inform on the Stability of Fluorescent Labels In Vivo. Pharmaceutics 2023; 15:pharmaceutics15030769. [PMID: 36986630 PMCID: PMC10059031 DOI: 10.3390/pharmaceutics15030769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/06/2023] [Accepted: 02/16/2023] [Indexed: 03/02/2023] Open
Abstract
Fluorescent labelling is commonly used to monitor the biodistribution of nanomedicines. However, meaningful interpretation of the results requires that the fluorescent label remains attached to the nanomedicine. In this work, we explore the stability of three fluorophores (BODIPY650, Cyanine 5 and AZ647) attached to polymeric hydrophobic biodegradable anchors. Using dual-labelled poly(ethylene glycol)-b-poly(lactic acid) (PEG-PLA) nanoparticles that are both radioactive and fluorescent, we investigated how the properties of the fluorophores impact the stability of the labelling in vitro and in vivo. Results suggest that the more hydrophilic dye (AZ647) is released faster from nanoparticles, and that this instability results in misinterpretation of in vivo data. While hydrophobic dyes are likely more suitable to track nanoparticles in biological environments, quenching of the fluorescence inside the nanoparticles can also introduce artefacts. Altogether, this work raises awareness about the importance of stable labelling methods when investigating the biological fate of nanomedicines.
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Cappabianca R, De Angelis P, Cardellini A, Chiavazzo E, Asinari P. Assembling Biocompatible Polymers on Gold Nanoparticles: Toward a Rational Design of Particle Shape by Molecular Dynamics. ACS OMEGA 2022; 7:42292-42303. [PMID: 36440134 PMCID: PMC9686196 DOI: 10.1021/acsomega.2c05218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Gold nanoparticles (AuNPs) have received great attention in a number of fields ranging from the energy sector to biomedical applications. As far as the latter is concerned, due to rapid renal clearance and a short lifetime in blood, AuNPs are often encapsulated in a poly(lactic-co-glycolic acid) (PLGA) matrix owing to its biocompatibility and biodegradability. A better understanding of the PLGA polymers on the AuNP surface is crucial to improve and optimize the above encapsulation process. In this study, we combine a number of computational approaches to explore the adsorption mechanisms of PLGA oligomers on a Au crystalline NP and to rationalize the PLGA coating process toward a more efficient design of the NP shape. Atomistic simulations supported by a recently developed unsupervised machine learning scheme show the temporal evolution and behavior of PLGA clusterization by tuning the oligomer concentration in aqueous solutions. Then, a detailed surface coverage analysis coupled with free energy landscape calculations sheds light on the anisotropic nature of PLGA adsorption onto the AuNP. Our results prove that the NP shape and topology may address and privilege specific sites of adsorption, such as the Au {1 1 1} crystal planes in selected NP samples. The modeling-based investigation suggested in this article offers a solid platform to guide the design of coated NPs.
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Affiliation(s)
- Roberta Cappabianca
- Department
of Energy “Galileo Ferraris”, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129Torino, Italy
| | - Paolo De Angelis
- Department
of Energy “Galileo Ferraris”, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129Torino, Italy
| | - Annalisa Cardellini
- Department
of Energy “Galileo Ferraris”, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129Torino, Italy
| | - Eliodoro Chiavazzo
- Department
of Energy “Galileo Ferraris”, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129Torino, Italy
| | - Pietro Asinari
- Department
of Energy “Galileo Ferraris”, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129Torino, Italy
- Istituto
Nazionale di Ricerca Metrologica, Strada Delle Cacce 91, 10135Torino, Italy
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Luminescence encoding of polymer microbeads with organic dyes and semiconductor quantum dots during polymerization. Sci Rep 2022; 12:12061. [PMID: 35835808 PMCID: PMC9283474 DOI: 10.1038/s41598-022-16065-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 07/04/2022] [Indexed: 01/15/2023] Open
Abstract
Luminescence-encoded microbeads are important tools for many applications in the life and material sciences that utilize luminescence detection as well as multiplexing and barcoding strategies. The preparation of such beads often involves the staining of premanufactured beads with molecular luminophores using simple swelling procedures or surface functionalization with layer-by-layer (LbL) techniques. Alternatively, these luminophores are sterically incorporated during the polymerization reaction yielding the polymer beads. The favorable optical properties of semiconductor quantum dots (QDs), which present broadly excitable, size-tunable, narrow emission bands and low photobleaching sensitivity, triggered the preparation of beads stained with QDs. However, the colloidal nature and the surface chemistry of these QDs, which largely controls their luminescence properties, introduce new challenges to bead encoding that have been barely systematically assessed. To establish a straightforward approach for the bead encoding with QDs with minimized loss in luminescence, we systematically assessed the incorporation of oleic acid/oleylamine-stabilized CdSe/CdS-core/shell-QDs into 0.5-2.5 µm-sized polystyrene (PS) microspheres by a simple dispersion polymerization synthesis that was first optimized with the organic dye Nile Red. Parameters addressed for the preparation of luminophore-encoded beads include the use of a polymer-compatible ligand such as benzyldimethyloctadecylammonium chloride (OBDAC) for the QDs, and crosslinking to prevent luminophore leakage. The physico-chemical and optical properties of the resulting beads were investigated with electron microscopy, dynamic light scattering, optical spectroscopy, and fluorescence microscopy. Particle size distribution, fluorescence quantum yield of the encapsulated QDs, and QD leaking stability were used as measures for bead quality. The derived optimized bead encoding procedure enables the reproducible preparation of bright PS microbeads encoded with organic dyes as well as with CdSe/CdS-QDs. Although these beads show a reduced photoluminescence quantum yield compared to the initially very strongly luminescent QDs, with values of about 35%, their photoluminescence quantum yield is nevertheless still moderate.
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6
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Diversifying the skin cancer-fighting worthwhile frontiers: How relevant are the itraconazole/ascorbyl palmitate nanovectors? NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2022; 43:102561. [PMID: 35417773 DOI: 10.1016/j.nano.2022.102561] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 03/20/2022] [Accepted: 03/30/2022] [Indexed: 12/13/2022]
Abstract
Fighting malignant neoplasms via repurposing existing drugs could be a welcome move for prosperous cancer remediations. In the current work, nanovehiculation and optimization of the repositioned itraconazole (ITZ) utilizing ascorbyl palmitate (AP) aspasomes would be an auspicious approach. Further, the optimized aspasomes were incorporated in a cream and tracked for skin deposition. The in vivo efficacy of aspasomal cream on mice subcutaneous Ehrlich carcinoma model was also assessed. The optimized aspasomes revealed nano size (67.83 ± 6.16 nm), negative charge (-79.40 ± 2.23 mV), > 95% ITZ entrapment and high colloidal stability. AP yielded substantial antioxidant capacity and pushed the ITZ cytotoxicity forward against A431 cells (IC50 = 5.3±0.27 μg/mL). An appealing privilege was the aspasomal cream that corroborated spreadability, contemplated skin permeation and potentiated in vivo anticancer competence, reflected in 62.68% reduction in the tumor weight. Such synergistic tumor probes set the foundation for futuristic clinical translation and commercialization.
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7
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Cao Y, Chen Z, Li X, Li Z, Lin G, Liu T, Wu Y. Dual-color quantum dot-loaded nanoparticles based lateral flow biosensor for the simultaneous detection of gastric cancer markers in a single test line. Anal Chim Acta 2022; 1218:339998. [DOI: 10.1016/j.aca.2022.339998] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/19/2022] [Accepted: 05/24/2022] [Indexed: 11/01/2022]
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Alkilany AM, Rachid O, Alkawareek MY, Billa N, Daou A, Murphy CJ. PLGA-Gold Nanocomposite: Preparation and Biomedical Applications. Pharmaceutics 2022; 14:pharmaceutics14030660. [PMID: 35336033 PMCID: PMC8949597 DOI: 10.3390/pharmaceutics14030660] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 12/13/2022] Open
Abstract
A composite system consisting of both organic and inorganic nanoparticles is an approach to prepare a new material exhibiting “the best of both worlds”. In this review, we highlight the recent advances in the preparation and applications of poly(lactic-co-glycolic acid)-gold nanoparticles (PLGA-GNP). With its current clinically use, PLGA-based nanocarriers have promising pharmaceutical applications and can “extract and utilize” the fascinating optical and photothermal properties of encapsulated GNP. The resulting “golden polymeric nanocarrier” can be tracked, analyzed, and visualized using the encapsulated gold nanoprobes which facilitate a better understanding of the hosting nanocarrier’s pharmacokinetics and biological fate. In addition, the “golden polymeric nanocarrier” can reveal superior nanotherapeutics that combine both the photothermal effect of the encapsulated gold nanoparticles and co-loaded chemotherapeutics. To help stimulate more research on the development of nanomaterials with hybrid and exceptional properties, functionalities, and applications, this review provides recent examples with a focus on the available chemistries and the rationale behind encapsulating GNP into PLGA nanocarriers that has the potential to be translated into innovative, clinically applicable nanomedicine.
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Affiliation(s)
- Alaaldin M. Alkilany
- College of Pharmacy, QU Health, Qatar University, Doha 2713, Qatar; (O.R.); (N.B.); (A.D.)
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar
- Department of Pharmaceutics and Pharmaceutical Technology, School of Pharmacy, The University of Jordan, Amman 11942, Jordan;
- Correspondence: (A.M.A.); (C.J.M.)
| | - Ousama Rachid
- College of Pharmacy, QU Health, Qatar University, Doha 2713, Qatar; (O.R.); (N.B.); (A.D.)
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar
| | - Mahmoud Y. Alkawareek
- Department of Pharmaceutics and Pharmaceutical Technology, School of Pharmacy, The University of Jordan, Amman 11942, Jordan;
| | - Nashiru Billa
- College of Pharmacy, QU Health, Qatar University, Doha 2713, Qatar; (O.R.); (N.B.); (A.D.)
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar
| | - Anis Daou
- College of Pharmacy, QU Health, Qatar University, Doha 2713, Qatar; (O.R.); (N.B.); (A.D.)
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar
| | - Catherine J. Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA
- Correspondence: (A.M.A.); (C.J.M.)
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9
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Alferiev IS, Fishbein I, Levy RJ, Chorny M. Robust Chemical Strategy for Stably Labeling Polyester-Based Nanoparticles with BODIPY Fluorophores. ACS APPLIED POLYMER MATERIALS 2022; 4:1196-1206. [PMID: 36060230 PMCID: PMC9432775 DOI: 10.1021/acsapm.1c01601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Aliphatic polyesters are among materials most extensively used for producing biodegradable polymeric nanoparticles currently in development as delivery carriers and imaging agents for a range of biomedical applications. Their clinical translation requires robust particle labeling methodologies that allow reliably monitoring the fate of these formulations in complex biological environments. In the present study, a practical and versatile synthetic strategy providing conjugates of poly(D,L-lactide) representative of this class of polymers with BODIPY fluorophores varying in functional groups and excitation/emission maxima was investigated as a tool for making traceable nanoparticles. Polymer-probe conjugation was accomplished by carbodiimide-induced and 4-(dimethylamino)pyridinium 4-toluenesulfonate-catalyzed esterification of the polymer's terminal hydroxyl group, either directly with a carboxy-functionalized fluorophore or with amine-protected amino acids (Boc-glycine or Boc-6-aminohexanoic acid). In the latter case, the amino acid-derivatized polymeric precursors were reacted with amine-reactive BODIPY dyes after the removal of the protective group. Unlike nanoparticles encapsulating a strongly hydrophobic BODIPY505/515 (logPo/w = 4.3), nanoparticles labeled covalently with its carboxy-functionalized analogue (BODIPY FL) demonstrated stable particle-tracer association under perfect sink conditions. Furthermore, in contrast to the encapsulated dye rapidly partitioning from particles onto cell membranes but not stably retained by cultured cells, the internalization of the covalently attached probe was an irreversible process requiring the presence of serum, consistent with active nanoparticle uptake by endocytosis. In conclusion, the conjugation of particle-forming polymers with BODIPY fluorophores offers an effective and accessible labeling strategy for making traceable polyester-based biodegradable nanoparticles and is expected to facilitate their development and optimization as therapeutic carriers and diagnostic agents.
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Affiliation(s)
- Ivan S Alferiev
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104-4318, United States; The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania 19104-4318, United States
| | - Ilia Fishbein
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104-4318, United States; The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania 19104-4318, United States
| | - Robert J Levy
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104-4318, United States; The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania 19104-4318, United States
| | - Michael Chorny
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104-4318, United States; The University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania 19104-4318, United States
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10
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Fluorescently Labeled PLGA Nanoparticles for Visualization In Vitro and In Vivo: The Importance of Dye Properties. Pharmaceutics 2021; 13:pharmaceutics13081145. [PMID: 34452106 PMCID: PMC8399891 DOI: 10.3390/pharmaceutics13081145] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/16/2021] [Accepted: 07/21/2021] [Indexed: 12/11/2022] Open
Abstract
Fluorescently labeled nanoparticles are widely used for evaluating their distribution in the biological environment. However, dye leakage can lead to misinterpretations of the nanoparticles' biodistribution. To better understand the interactions of dyes and nanoparticles and their biological environment, we explored PLGA nanoparticles labeled with four widely used dyes encapsulated (coumarin 6, rhodamine 123, DiI) or bound covalently to the polymer (Cy5.5.). The DiI label was stable in both aqueous and lipophilic environments, whereas the quick release of coumarin 6 was observed in model media containing albumin (42%) or liposomes (62%), which could be explained by the different affinity of these dyes to the polymer and lipophilic structures and which we also confirmed by computational modeling (log PDPPC/PLGA: DiI-2.3, Cou6-0.7). The importance of these factors was demonstrated by in vivo neuroimaging (ICON) of the rat retina using double-labeled Cy5.5/Cou6-nanoparticles: encapsulated Cou6 quickly leaked into the tissue, whereas the stably bound Cy.5.5 label remained associated with the vessels. This observation is a good example of the possible misinterpretation of imaging results because the coumarin 6 distribution creates the impression that nanoparticles effectively crossed the blood-retina barrier, whereas in fact no signal from the core material was found beyond the blood vessels.
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de Oliveira MA, Pound-Lana G, Capelari-Oliveira P, Pontífice TG, Silva SED, Machado MGC, Postacchini BB, Mosqueira VCF. Release, transfer and partition of fluorescent dyes from polymeric nanocarriers to serum proteins monitored by asymmetric flow field-flow fractionation. J Chromatogr A 2021; 1641:461959. [PMID: 33611111 DOI: 10.1016/j.chroma.2021.461959] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 12/20/2022]
Abstract
Fluorescent probes are used in drug nanocarrier pre-clinical studies or as active compounds in theranostics and photodynamic therapy. In the biological medium, nanoparticles interact with proteins, which can result in the off-target release of their cargo. The present study used asymmetric flow field-flow fractionation with online multi-angle laser light scattering and fluorescence detection (AF4-MALLS-FLD) to study the release, transfer, and partition of fluorescent dyes from polymeric nanoparticles (NP). NP formulations containing the dyes Rose Bengal, Rhodamine B, DiI, 3-(α-azidoacetyl)coumarin and its polymer conjugate, Nile Red, and IR780 and its polymer conjugate were prepared. NP suspensions were incubated in a medium with serum proteins and then analyzed by AF4. AF4 allowed efficient separation of proteins (< 10 nm) from fluorescently labeled NP (range of 54 - 180 nm in diameters). The AF4 analyses showed that some dyes, such as Rose Bengal, IR780, and Coumarin were transferred to a high extent (68-77%) from NP to proteins. By contrast, for DiI and dye-polymer conjugates, transfer occured to a lower extent. The studies of dye release kinetics showed that the transfer of IR780 from NP to proteins occurs at a high extent (~50%) and rate, while Nile Red was slowly released from the NP over time with reduced association with proteins (~20%). This experiment assesses the stability of fluorescence labeling of nanocarriers and probes the transfer of fluorescent dyes from NP to proteins, which is otherwise not accessible with commonly used techniques of separation, such as dialysis and ultrafiltration/centrifugation employed in drug encapsulation and release studies of nanocarriers. Determining the interaction and transfer of dyes to proteins is of utmost importance in the pre-clinical evaluation of drug nanocarriers for improved correlation between in vitro and in vivo studies.
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Affiliation(s)
- Maria Alice de Oliveira
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Gwenaelle Pound-Lana
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Patricia Capelari-Oliveira
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Thaís Godinho Pontífice
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Sabrina Emanuelle Dias Silva
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Marina Guimarães Carvalho Machado
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Bruna Bueno Postacchini
- Photophysics Laboratory, Department of Physics, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Minas Gerais, Brazil
| | - Vanessa Carla Furtado Mosqueira
- Laboratory of Pharmaceutics and Nanobiotechnology (LDGNano), School of Pharmacy, Federal University of Ouro Preto, Minas Gerais, Brazil.
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12
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Transdermal delivery of second-generation antipsychotics for management of schizophrenia; disease overview, conventional and nanobased drug delivery systems. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102104] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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13
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Kargozar S, Hoseini SJ, Milan PB, Hooshmand S, Kim H, Mozafari M. Quantum Dots: A Review from Concept to Clinic. Biotechnol J 2020; 15:e2000117. [DOI: 10.1002/biot.202000117] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/10/2020] [Indexed: 01/30/2023]
Affiliation(s)
- Saeid Kargozar
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Seyed Javad Hoseini
- Department of Medical Biotechnology and Nanotechnology, School of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Peiman Brouki Milan
- Cellular and Molecular Research Centre Iran University of Medical Sciences Tehran Iran
- Institutes of Regenerative Medicine, Faculty of Advanced Technologies in Medicine Iran University of Medical Sciences Tehran Iran
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine Iran University of Medical Sciences Tehran Iran
| | - Sara Hooshmand
- Pharmacological Research Center of Medicinal Plants Mashhad University of Medical Sciences Mashhad Iran
- Department of Pharmacology, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Hae‐Won Kim
- Institute of Tissue Regeneration Engineering (ITREN) Dankook University Cheonan Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine Dankook University Cheonan Republic of Korea
- Department of Biomaterials Science, School of Dentistry Dankook University Cheonan Republic of Korea
| | - Masoud Mozafari
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine Iran University of Medical Sciences Tehran Iran
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Putzke S, Feldhues E, Heep I, Ilg T, Lamprecht A. Cationic lipid/pDNA complex formation as potential generic method to generate specific IRF pathway stimulators. Eur J Pharm Biopharm 2020; 155:112-121. [PMID: 32798666 DOI: 10.1016/j.ejpb.2020.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 05/21/2020] [Accepted: 08/10/2020] [Indexed: 10/23/2022]
Abstract
Cationic liposome - CpG DNA complexes (lipoplexes) are known as stimulators of innate immunity via Toll-like receptor 9 (TLR9)-triggered activation of the nuclear factor kappa B (NF-κB) pathway. More recent reports suggest that DNA lipoplexes also engage DNA sensors in the cytosol leading to the stimulation of the interferon response factor (IRF) pathway. In this study a range of lipoplexes were formulated by using an invariable helper lipid, three different cationic lipids (DOTAP, DOTMA and DDA) and three different CpG-containing plasmids of different sizes. These lipoplexes exhibited similar hydrodynamic diameters, zeta-potentials and plasmid loading rates, despite the different lipid blends and CpG-containing plasmids. Binding and uptake of liposomal lipids by J774.A1 macrophages and JAWSII dendritic cells increased significantly (up to 4-fold) upon lipoplex formation. Cellular plasmid DNA uptake via lipoplexes compared to naked DNA was increased up to 18-fold. Analysis of signal transduction pathway activation in J774-DUAL™ reporter cells by liposomes or naked CpG plasmid DNA compared to their derived lipoplexes showed only minor activation of the NF-κB pathway, while the IRF pathway displayed massive activation factors of up to 46-fold. DOTAP- and DOTMA lipoplexes also led to massive interferon-alpha and -beta secretion of J774A.1 macrophages and JAWSII dendritic cells, which is a hallmark of IRF pathway activation. Cellular distribution studies on DOTAP lipoplexes suggest delivery of plasmid DNA via vesicular compartments into the cytosol. Taken together, the CpG plasmid DNA lipoplexes generated in this study appear to selectively stimulate DNA receptors activating the IRF pathway, while bypassing TLR9 and NF-κB activation.
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Affiliation(s)
- Simone Putzke
- Department of Pharmaceutics, Institute of Pharmacy, University of Bonn, 53121 Bonn, Germany; Bayer Animal Health GmbH, 40789 Monheim am Rhein, Germany
| | | | - Iris Heep
- Bayer Animal Health GmbH, 40789 Monheim am Rhein, Germany
| | - Thomas Ilg
- Bayer Animal Health GmbH, 40789 Monheim am Rhein, Germany
| | - Alf Lamprecht
- Department of Pharmaceutics, Institute of Pharmacy, University of Bonn, 53121 Bonn, Germany.
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15
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Al-Natour MA, Yousif MD, Cavanagh R, Abouselo A, Apebende EA, Ghaemmaghami A, Kim DH, Aylott JW, Taresco V, Chauhan VM, Alexander C. Facile Dye-Initiated Polymerization of Lactide-Glycolide Generates Highly Fluorescent Poly(lactic- co-glycolic Acid) for Enhanced Characterization of Cellular Delivery. ACS Macro Lett 2020; 9:431-437. [PMID: 35648548 DOI: 10.1021/acsmacrolett.9b01014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Poly(lactic-co-glycolic acid) (PLGA) is a versatile synthetic copolymer that is widely used in pharmaceutical applications. This is because it is well-tolerated in the body, and copolymers of varying physicochemical properties are readily available via ring-opening polymerization. However, native PLGA polymers are hard to track as drug delivery carriers when delivered to subcellular spaces, due to the absence of an easily accessible "handle" for fluorescent labeling. Here we show a one-step, scalable, solvent-free, synthetic route to fluorescent blue (2-aminoanthracene), green (5-aminofluorescein), and red (rhodamine-6G) PLGA, in which every polymer chain in the sample is fluorescently labeled. The utility of initiator-labeled PLGA was demonstrated through the preparation of nanoparticles, capable of therapeutic subcellular delivery to T-helper-precursor-1 (THP-1) macrophages, a model cell line for determining in vitro biocompatibility and particle uptake. Super resolution confocal fluorescence microscopy imaging showed that dye-initiated PLGA nanoparticles were internalized to punctate regions and retained bright fluorescence over at least 24 h. In comparison, PLGA nanoparticles with 5-aminofluorescein introduced by conventional nanoprecipitation/encapsulation showed diffuse and much lower fluorescence intensity in the same cells and over the same time periods. The utility of this approach for in vitro drug delivery experiments was demonstrated through the concurrent imaging of the fluorescent drug doxorubicin (λex = 480 nm, λem = 590 nm) with carrier 5-aminofluorescein PLGA, also in THP-1 cells, in which the intracellular locations of the drug and the polymer could be clearly visualized. Finally, the dye-labeled particles were evaluated in an in vivo model, via delivery to the nematode Caenorhabditis elegans, with bright fluorescence again apparent in the internal tract after 3 h. The results presented in this manuscript highlight the ease of synthesis of highly fluorescent PLGA, which could be used to augment tracking of future therapeutics and accelerate in vitro and in vivo characterization of delivery systems prior to clinical translation.
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Affiliation(s)
- Mohammad A. Al-Natour
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham NG7 2RD, United Kingdom
- Division of Immunology, School of Life Sciences, Faculty of Medicine and Health Sciences, Queen’s Medical Centre, University of Nottingham, Nottingham, United Kingdom
- The Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Mohamed D. Yousif
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Robert Cavanagh
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Amjad Abouselo
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Edward A. Apebende
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Amir Ghaemmaghami
- Division of Immunology, School of Life Sciences, Faculty of Medicine and Health Sciences, Queen’s Medical Centre, University of Nottingham, Nottingham, United Kingdom
| | - Dong-Hyun Kim
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Jonathan W. Aylott
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Vincenzo Taresco
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham NG7 2RD, United Kingdom
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Veeren M. Chauhan
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Cameron Alexander
- School of Pharmacy, Boots Science Building, University of Nottingham, Nottingham NG7 2RD, United Kingdom
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16
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Zhang Y, García-Gabilondo M, Grayston A, Feiner IVJ, Anton-Sales I, Loiola RA, Llop J, Ramos-Cabrer P, Barba I, Garcia-Dorado D, Gosselet F, Rosell A, Roig A. PLGA protein nanocarriers with tailor-made fluorescence/MRI/PET imaging modalities. NANOSCALE 2020; 12:4988-5002. [PMID: 32057060 DOI: 10.1039/c9nr10620k] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Designing theranostic nanocarriers with high protein payload and multimodality tracking without cross interferences between the different imaging probes and the delicate protein cargo is challenging. Here, chemical modifications of poly(lactic-co-glycolic acid) (PLGA) to produce nanocapsules (NCs) that incorporate several imaging moieties are reported. The biocompatible and biodegradable PLGA-NCs can be endowed with a magnetic resonance imaging (MRI) reporter, two fluorescence imaging probes (blue/NIR) and a positron emission tomography (PET) reporter. The modular integration of these imaging moieties into the shell of the NCs is successfully achieved without affecting the morphochemical properties of the nanocarrier or the protein loading capacity. In vivo biodistribution of the NCs is monitored by MRI, PET and NIRF and the results from different techniques are analyzed comparatively. The viabilities of two different human endothelial cells in vitro show no toxicity for NC concentration up to 100 μg mL-1. The morbidity of mice for 2 weeks after systemic administration and the hepatic/pancreatic enzymes at the plasma level indicate their in vivo biosafety. In summary, the new theranostic PLGA nanoplatform presented here shows versatile in vitro/in vivo multimodal imaging capabilities, excellent biosafety and over 1 wt% protein loading.
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Affiliation(s)
- Yajie Zhang
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), 08193 Bellaterra, Catalonia, Spain.
| | - Miguel García-Gabilondo
- Neurovascular Research Laboratory, Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, 08035 Barcelona, Catalonia, Spain.
| | - Alba Grayston
- Neurovascular Research Laboratory, Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, 08035 Barcelona, Catalonia, Spain.
| | - Irene V J Feiner
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 San Sebastian, Guipúzcoa, Spain
| | - Irene Anton-Sales
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), 08193 Bellaterra, Catalonia, Spain.
| | - Rodrigo A Loiola
- University of Artois, Blood-Brain Barrier Laboratory (BBB Lab), UR2465, F-62300 Lens, France
| | - Jordi Llop
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 San Sebastian, Guipúzcoa, Spain and CIBERES, Centro de Investigación Biomédica en Red, 28029 Madrid, Spain
| | - Pedro Ramos-Cabrer
- Magnetic Resonance Imaging Laboratory, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 San Sebastian, Guipúzcoa, Spain and Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Ignasi Barba
- Cardiovascular Diseases Research Group, Vall d'Hebron University Hospital and Research Institute, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain
| | - David Garcia-Dorado
- Cardiovascular Diseases Research Group, Vall d'Hebron University Hospital and Research Institute, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain
| | - Fabien Gosselet
- University of Artois, Blood-Brain Barrier Laboratory (BBB Lab), UR2465, F-62300 Lens, France
| | - Anna Rosell
- Neurovascular Research Laboratory, Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, 08035 Barcelona, Catalonia, Spain.
| | - Anna Roig
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), 08193 Bellaterra, Catalonia, Spain.
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17
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Zhang Y, García-Gabilondo M, Rosell A, Roig A. MRI/Photoluminescence Dual-Modal Imaging Magnetic PLGA Nanocapsules for Theranostics. Pharmaceutics 2019; 12:E16. [PMID: 31877821 PMCID: PMC7023350 DOI: 10.3390/pharmaceutics12010016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/02/2019] [Accepted: 12/17/2019] [Indexed: 12/29/2022] Open
Abstract
Developing multifunctional and biocompatible drug delivery nanoplatforms that integrate high drug loads and multiple imaging modalities avoiding cross-interferences is extremely challenging. Here we report on the successful chemical reaction of the high quantum yield biodegradable and photoluminescent polyester (BPLP) with the poly(lactic-co-glycolic acid) (PLGA) polymer to fabricate biocompatible photoluminescent nanocapsules (NCs). Furthermore, we transform the PLGA-BPLP NCs into a magnetic resonance (MR)/photoluminescence dual-modal imaging theranostic platform by incorporating superparamagnetic iron oxide nanoparticles (SPIONs) into the polymeric shell. In vitro phantoms confirmed the excellent MRI-r2 relaxivity values of the NCs whilst the cellular uptake of these NCs was clearly observed by fluorescence optical imaging. Besides, the NCs (mean size ~270 nm) were loaded with ~1 wt% of a model protein (BSA) and their PEGylation provided a more hydrophilic surface. The NCs show biocompatibility in vitro, as hCMEC/D3 endothelial cells viability was not affected for particle concentration up to 500 μg/mL. Interestingly, NCs decorated with SPIONs can be exploited for magnetic guiding and retention.
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Affiliation(s)
- Yajie Zhang
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Catalonia, Spain
| | - Miguel García-Gabilondo
- Neurovascular Research Laboratory, Vall d’Hebron Institut de Recerca, Universitat Autònoma de Barcelona, 08035 Barcelona, Catalonia, Spain
| | - Anna Rosell
- Neurovascular Research Laboratory, Vall d’Hebron Institut de Recerca, Universitat Autònoma de Barcelona, 08035 Barcelona, Catalonia, Spain
| | - Anna Roig
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Catalonia, Spain
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18
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Alkilany AM, Alsotari S, Alkawareek MY, Abulateefeh SR. Facile Hydrophobication of Glutathione-Protected Gold Nanoclusters and Encapsulation into Poly(lactide-co-glycolide) Nanocarriers. Sci Rep 2019; 9:11098. [PMID: 31366896 PMCID: PMC6668383 DOI: 10.1038/s41598-019-47543-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 07/05/2019] [Indexed: 12/05/2022] Open
Abstract
We report a simple surface functionalization of glutathione-capped gold nanoclusters by hydrophobic ion pairing with alkylamine followed by a complete phase transfer to various organic solvents with maintained colloidal stability and photoluminescence properties. The described surface hydrophobication enables efficient encapsulation of gold nanoclusters into PLGA nanocarriers allowing their visualization inside cultured cells using confocal fluorescent microscopy. The simplicity and efficiency of the described protocols should extend the biomedical applications of these metallic nanoclusters as a fluorescent platform to label hydrophobic polymeric nanocarriers beyond conventional organic dyes.
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Affiliation(s)
- Alaaldin M Alkilany
- Department of Pharmaceutics & Pharmaceutical Technology, School of Pharmacy, The University of Jordan, Amman, 11942, Jordan.
| | - Shrouq Alsotari
- Cell Therapy Center, The University of Jordan, Amman, 11942, Jordan
| | - Mahmoud Y Alkawareek
- Department of Pharmaceutics & Pharmaceutical Technology, School of Pharmacy, The University of Jordan, Amman, 11942, Jordan
| | - Samer R Abulateefeh
- Department of Pharmaceutics & Pharmaceutical Technology, School of Pharmacy, The University of Jordan, Amman, 11942, Jordan
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19
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Castellani C, Fedrigo M, Tavano R, Cappellini R, Fedeli C, Mognato M, Abdel-Mottaleb MMA, Lamprecht A, Tudorancea I, Porumb V, Iliescu R, Angelini A, Papini E, Dimofte G. Tumor-facing hepatocytes significantly contribute to mild hyperthermia-induced targeting of rat liver metastasis by PLGA-NPs. Int J Pharm 2019; 566:541-548. [PMID: 31173801 DOI: 10.1016/j.ijpharm.2019.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/22/2019] [Accepted: 06/03/2019] [Indexed: 11/26/2022]
Abstract
The effect of mild hyperthermia (MHT) on nanoparticle (NP) accumulation in rat model liver metastasis and the contribution of neoplastic and non-neoplastic cells were characterized. CdSe/ZnS QD-doped poly(lactic-co-glycolic acid) (PLGA) NPs (155 ± 10 nm) were delivered via the ileocolic vein to metastatic livers 15 min after localized MW irradiation (1 min, 41 °C) or in normothermia (37 °C, NT). Quantitative analysis of tissue sections by confocal fluorescence microscopy 1 h after NP injection showed no NP tumor accumulation in NT. On the contrary, MHT increased NP association with tumor, compared to normal tissue. Counterstaining of specific markers showed that the MHT effect is due to an increased NP endocytosis not only by tumor cells, but also by hepatocytes at the growing tumor edge and, to a minor extent, by tumor-associated macrophages. High-NP capturing hepatocytes, close to the tumor, may be a relevant phenomenon in MHT-induced increased targeting of NPs to liver metastasis, influencing their therapeutic efficacy.
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Affiliation(s)
- Chiara Castellani
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Italy
| | - Marny Fedrigo
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Italy
| | - Regina Tavano
- Department of Biomedical Sciences, University of Padova, Italy
| | | | - Chiara Fedeli
- Department of Biomedical Sciences, University of Padova, Italy
| | | | - Mona M A Abdel-Mottaleb
- PEPITE EA4267, Université Bourgogne Franche-Comté, F-25000 Besançon, France; Department of Pharmaceutics and Industrial Pharmacy, Ain Shams University, Cairo, Egypt
| | - Alf Lamprecht
- PEPITE EA4267, Université Bourgogne Franche-Comté, F-25000 Besançon, France; Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Germany.
| | - Ionut Tudorancea
- Department of Internal Medicine, University of Medicine and Pharmacy "Grigore T. Popa" Iasi, Romania.
| | - Vlad Porumb
- Department of Surgery, University of Medicine and Pharmacy "Grigore T. Popa" Iasi, Regional Institute of Oncology Iasi, Romania
| | - Radu Iliescu
- Department of Pharmacology, University of Medicine and Pharmacy "Grigore T. Popa" Iasi, Regional Institute of Oncology Iasi, Romania
| | - Annalisa Angelini
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Italy
| | - Emanuele Papini
- Department of Biomedical Sciences, University of Padova, Italy.
| | - Gabriel Dimofte
- Department of Internal Medicine, University of Medicine and Pharmacy "Grigore T. Popa" Iasi, Romania
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20
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Luminescent nanomaterials for droplet tracking in a microfluidic trapping array. Anal Bioanal Chem 2018; 411:157-170. [PMID: 30483856 DOI: 10.1007/s00216-018-1448-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 10/16/2018] [Accepted: 10/22/2018] [Indexed: 12/18/2022]
Abstract
The use of high-throughput multiplexed screening platforms has attracted significant interest in the field of on-site disease detection and diagnostics for their capability to simultaneously interrogate single-cell responses across different populations. However, many of the current approaches are limited by the spectral overlap between tracking materials (e.g., organic dyes) and commonly used fluorophores/biochemical stains, thus restraining their applications in multiplexed studies. This work demonstrates that the downconversion emission spectra offered by rare earth (RE)-doped β-hexagonal NaYF4 nanoparticles (NPs) can be exploited to address this spectral overlap issue. Compared to organic dyes and other tracking materials where the excitation and emission is separated by tens of nanometers, RE elements have a large gap between excitation and emission which results in their spectral independence from the organic dyes. As a proof of concept, two differently doped NaYF4 NPs (europium: Eu3+, and terbium: Tb3+) were employed on a fluorescent microscopy-based droplet microfluidic trapping array to test their feasibility as spectrally independent droplet trackers. The luminescence tracking properties of Eu3+-doped (red emission) and Tb3+-doped (green emission) NPs were successfully characterized by co-encapsulating with genetically modified cancer cell lines expressing green or red fluorescent proteins (GFP and RFP) in addition to a mixed population of live and dead cells stained with ethidium homodimer. Detailed quantification of the luminescent and fluorescent signals was performed to confirm no overlap between each of the NPs and between NPs and cells. Thus, the spectral independence of Eu3+-doped and Tb3+-doped NPs with each other and with common fluorophores highlights the potential application of this novel technique in multiplexed systems, where many such luminescent NPs (other doped and co-doped NPs) can be used to simultaneously track different input conditions on the same platform. Graphical abstract ᅟ.
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21
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Akhter KF, Mumin MA, Lui EMK, Charpentier PA. Fabrication of fluorescent labeled ginseng polysaccharide nanoparticles for bioimaging and their immunomodulatory activity on macrophage cell lines. Int J Biol Macromol 2017; 109:254-262. [PMID: 29229245 DOI: 10.1016/j.ijbiomac.2017.12.050] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 11/30/2017] [Accepted: 12/07/2017] [Indexed: 12/20/2022]
Abstract
Polysaccharides are a major active component of American ginseng root showing various biological activities including anti-carcinogenic, anti-aging, immunostimulatory and antioxidant effects. Although their biological activity has been reported by several groups, no research has explored their cellular uptake and biodistribution, owing to the lack of suitable detection techniques in living cells. This work examines a novel, simple and efficient fluorescent labeling procedure of ginseng polysaccharides (PS), in order to examine their cellular distribution using confocal microscopy. This procedure utilized a one-pot strategy with fluorescein-5-thiosemicarbazide (FTSC) to introduce a thiosemicarbazide group onto the aldehyde group at the reducing saccharide end to form a stable amino derivative through reductive amination. This polysaccharide-FTSC derivative was then characterized by GPC, UV, FTIR, photoluminescence and fluorescence microscopy to confirm attachment and any structural changes. The results demonstrated that the labeled ginseng PS nanostructure showed high fluorescence with minimal changes in PS molecular weight. The labeled PS exhibited almost no cytotoxicity effect against tumor induced macrophage cell lines (RAW 264.7) while retaining high immunostimulating activity similar to the non-labeled ginseng PS. Therefore, the developed approach provides a convenient and highly efficient fluorescent labeling procedure for understanding the mechanism of ginseng PS uptake in macrophage cell lines.
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Affiliation(s)
- Kazi Farida Akhter
- Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
| | - Md Abdul Mumin
- Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada
| | - Edmund M K Lui
- Physiology and Pharmacology, University of Western Ontario, London, Ontario, N6A 5C1, Canada
| | - Paul A Charpentier
- Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada; Biomedical Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada.
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22
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Oliveira LT, de Paula MA, Roatt BM, Garcia GM, Silva LSB, Reis AB, de Paula CS, Vilela JMC, Andrade MS, Pound-Lana G, Mosqueira VCF. Impact of dose and surface features on plasmatic and liver concentrations of biodegradable polymeric nanocapsules. Eur J Pharm Sci 2017; 105:19-32. [DOI: 10.1016/j.ejps.2017.04.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 04/19/2017] [Accepted: 04/21/2017] [Indexed: 11/17/2022]
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23
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Medina DX, Householder KT, Ceton R, Kovalik T, Heffernan JM, Shankar RV, Bowser RP, Wechsler-Reya RJ, Sirianni RW. Optical barcoding of PLGA for multispectral analysis of nanoparticle fate in vivo. J Control Release 2017; 253:172-182. [PMID: 28263836 DOI: 10.1016/j.jconrel.2017.02.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 02/08/2017] [Accepted: 02/27/2017] [Indexed: 12/31/2022]
Abstract
Understanding of the mechanisms by which systemically administered nanoparticles achieve delivery across biological barriers remains incomplete, due in part to the challenge of tracking nanoparticle fate in the body. Here, we develop a new approach for "barcoding" nanoparticles composed of poly(lactic-co-glycolic acid) (PLGA) with bright, spectrally defined quantum dots (QDs) to enable direct, fluorescent detection of nanoparticle fate with subcellular resolution. We show that QD labeling does not affect major biophysical properties of nanoparticles or their interaction with cells and tissues. Live cell imaging enabled simultaneous visualization of the interaction of control and targeted nanoparticles with bEnd.3 cells in a flow chamber, providing direct evidence that surface modification of nanoparticles with the cell-penetrating peptide TAT increases their biophysical association with cell surfaces over very short time periods under convective current. We next developed this technique for quantitative biodistribution analysis in vivo. These studies demonstrate that nanoparticle surface modification with the cell penetrating peptide TAT facilitates brain-specific delivery that is restricted to brain vasculature. Although nanoparticle entry into the healthy brain parenchyma is minimal, with no evidence for movement of nanoparticles across the blood-brain barrier (BBB), we observed that nanoparticles are able to enter to the central nervous system (CNS) through regions of altered BBB permeability - for example, into circumventricular organs in the brain or leaky vasculature of late-stage intracranial tumors. In sum, these data demonstrate a new, multispectral approach for barcoding PLGA, which enables simultaneous, quantitative analysis of the fate of multiple nanoparticle formulations in vivo.
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Affiliation(s)
- David X Medina
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Road, Phoenix, AZ 85013, USA
| | - Kyle T Householder
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Road, Phoenix, AZ 85013, USA; School of Biological and Health Systems Engineering, Arizona State University, P.O. Box 879709, Tempe, AZ 85287, USA
| | - Ricki Ceton
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Road, Phoenix, AZ 85013, USA; School of Biological and Health Systems Engineering, Arizona State University, P.O. Box 879709, Tempe, AZ 85287, USA
| | - Tina Kovalik
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Road, Phoenix, AZ 85013, USA
| | - John M Heffernan
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Road, Phoenix, AZ 85013, USA; School of Biological and Health Systems Engineering, Arizona State University, P.O. Box 879709, Tempe, AZ 85287, USA
| | - Rohini V Shankar
- School of Biological and Health Systems Engineering, Arizona State University, P.O. Box 879709, Tempe, AZ 85287, USA
| | - Robert P Bowser
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Road, Phoenix, AZ 85013, USA
| | - Robert J Wechsler-Reya
- Sanford Burnham Prebys Medical Discovery Institute, 2880 Torrey Pines Scenic Drive, La Jolla, CA 92037, USA
| | - Rachael W Sirianni
- Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W Thomas Road, Phoenix, AZ 85013, USA; School of Biological and Health Systems Engineering, Arizona State University, P.O. Box 879709, Tempe, AZ 85287, USA.
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24
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Sahin A, Esendagli G, Yerlikaya F, Caban-Toktas S, Yoyen-Ermis D, Horzum U, Aktas Y, Khan M, Couvreur P, Capan Y. A small variation in average particle size of PLGA nanoparticles prepared by nanoprecipitation leads to considerable change in nanoparticles’ characteristics and efficacy of intracellular delivery. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 45:1657-1664. [DOI: 10.1080/21691401.2016.1276924] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Adem Sahin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Gunes Esendagli
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Firat Yerlikaya
- Elixir Pharmaceutical Research and Development Corporation, Ankara, Turkey
| | - Secil Caban-Toktas
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Digdem Yoyen-Ermis
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Utku Horzum
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Yesim Aktas
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Mansoor Khan
- Irma Lerma Rangel College of Pharmacy, Texas A&M University, TX, USA
| | - Patrick Couvreur
- Institut Galien Paris-Sud UMR CNRS 8612, Faculty of Pharmacy, University Paris-Sud XI, Châtenay-Malabry, France
| | - Yilmaz Capan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
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Pluronic mimicking fluorescent carbon nanoparticles conjugated with doxorubicin via acid-cleavable linkage for tumor-targeted drug delivery and bioimaging. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.08.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Composite chitosan-transfersomal vesicles for improved transnasal permeation and bioavailability of verapamil. Int J Biol Macromol 2016; 93:591-599. [PMID: 27620464 DOI: 10.1016/j.ijbiomac.2016.09.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 09/05/2016] [Accepted: 09/07/2016] [Indexed: 11/20/2022]
Abstract
The creation of composite systems has become an emerging field in drug delivery. Chitosan has demonstrated several pharmaceutical advantages, especially in intranasal delivery. In this manuscript, a comparative study was conducted between regular vesicles (transfersomes and penetration enhancer vesicles) and composite vesicles (chitosan containing transfersomes and penetration enhancer vesicles) loaded with a model antihypertensive drug; verapamil hydrochloride VRP. Composite vesicles displayed larger particle size than regular vesicles owing to the coating potential of chitosan on the vesicular bilayer as displayed by transmission electron microscopy, with an increased viscosity of composite vesicles and a shift in the zeta potential values from negative to positive. The entrapment efficiency of VRP in the vesicles ranged from 24 to 64%, with best physical stability displayed with transfersomal vesicles prepared using sodium deoxycholate. Chitosan slowed the in vitro release of VRP from the selected formulation but managed to achieve high penetrability across sheep nasal mucosa as displayed by confocal laser microscopy. The chitosan composite transfersomal formulation exhibited absolute bioavailability of 81.83% compared to the oral solution which displayed only 13.04%. Findings of this manuscript highly recommend chitosan as a promising functional additive in vesicular formulations to improve the intranasal delivery of drugs with low oral bioavailability.
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Popov A, Schopf L, Bourassa J, Chen H. Enhanced pulmonary delivery of fluticasone propionate in rodents by mucus-penetrating nanoparticles. Int J Pharm 2016; 502:188-97. [DOI: 10.1016/j.ijpharm.2016.02.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 01/23/2016] [Accepted: 02/17/2016] [Indexed: 02/08/2023]
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Try C, Moulari B, Béduneau A, Fantini O, Pin D, Pellequer Y, Lamprecht A. Size dependent skin penetration of nanoparticles in murine and porcine dermatitis models. Eur J Pharm Biopharm 2016; 100:101-8. [DOI: 10.1016/j.ejpb.2016.01.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 12/24/2015] [Accepted: 01/07/2016] [Indexed: 11/25/2022]
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Biopharmaceutical profile of hydrogels containing pranoprofen-loaded PLGA nanoparticles for skin administration: In vitro, ex vivo and in vivo characterization. Int J Pharm 2016; 501:350-61. [PMID: 26844786 DOI: 10.1016/j.ijpharm.2016.01.071] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 01/26/2016] [Accepted: 01/28/2016] [Indexed: 11/22/2022]
Abstract
Pranoprofen (PF)-loaded nanoparticles (PF-F1NPs and PF-F2NPs) have been formulated into blank hydrogels (HG_PF-F1NPs and HG_PF-F1NPs) or into hydrogels composed of 3% azone (HG_PF-F1NPs-Azone and HG_PF-F2NPs-Azone), as innovative strategy to improve the biopharmaceutical profile of the selected non-steroidal anti-inflammatory drug (Pranoprofen, PF) for topical application. The purpose of this approach has been to increase the contact of PF with the skin, improve its retention in deeper layers, thus enhancing its anti-inflammatory and analgesic effects. The physicochemical characterization of the developed hydrogels showed a non-Newtonian behaviour, typical of semi-solid formulations for skin administration, with sustained release profile. The results obtained from ex vivo skin human permeation and in vivo anti-inflammatory efficacy studies suggest that topical application of HG_PF-F2NPs has been more effective in the treatment of oedema on the skin' surface in comparison to other hydrogels. No signs of skin irritancy have been detected for all the semi-solid formulations containing 0% or 3% azone.
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