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Feng Y, Wang J, Zhang S, Li Y, Wang B, Zhang J, Qiu Y, Zhang Y, Zhang Y. Preparation of amentoflavone-loaded DSPE-PEG 2000 micelles with improved bioavailability and in vitro antitumor efficacy. Biomed Chromatogr 2023; 37:e5690. [PMID: 37337343 DOI: 10.1002/bmc.5690] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/27/2023] [Accepted: 06/03/2023] [Indexed: 06/21/2023]
Abstract
To overcome the poor aqueous solubility and enhance the anticancer effects of amentoflavone (AF), a nontoxic and biodegradable amphiphilic copolymer, poly(ethyleneglycol)-distearoylphosphatidylethanolamine (DSPE-PEG2000 ), was introduced to prepare AF micelles using the thin-film hydration method. Amentoflavone was successfully encapsulated into the core, achieving an encapsulation efficiency of 98.80 ± 0.24% and a drug loading efficiency of 2.96 ± 0.12%. The resulting micelles exhibited a spherical shape with a particle size of approximately 25.99 nm. The solubility of AF was significant improved by 412-fold, and cumulative drug release studies showed that AF release was much faster from the micelles compared with the free drug. The release of AF was sustained over time and followed a degradation-based kinetic model, similar to polymeric systems. After oral administration, the AF-loaded micelles demonstrated an enhanced oral bioavailability, which was 3.79 times higher than that of free AF. In vitro evaluations of the micelles' antitumor effects revealed a significantly greater efficacy compared with free AF. These findings highlight the tremendous potential of DSPE-PEG2000 micelles as a drug delivery carrier for improving the solubility and therapeutic efficacy of AF.
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Affiliation(s)
- Yuan Feng
- Hebei Key Laboratory of Neuropharmacology, Hebei North University, Zhangjiakou, China
| | - Jin Wang
- Hebei Key Laboratory of Neuropharmacology, Hebei North University, Zhangjiakou, China
| | | | - Yanan Li
- Hebei Key Laboratory of Neuropharmacology, Hebei North University, Zhangjiakou, China
| | - Boxin Wang
- Hebei Key Laboratory of Neuropharmacology, Hebei North University, Zhangjiakou, China
| | - Jiayuan Zhang
- Hebei Key Laboratory of Neuropharmacology, Hebei North University, Zhangjiakou, China
| | - Yingzhe Qiu
- Hebei Key Laboratory of Neuropharmacology, Hebei North University, Zhangjiakou, China
| | - Yi Zhang
- Shenyang Pharmaceutical University, Shenyang, China
| | - Yuanyuan Zhang
- Hebei Key Laboratory of Neuropharmacology, Hebei North University, Zhangjiakou, China
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2
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Gheata A, Spada A, Wittwer M, Dhouib A, Molina E, Mugnier Y, Gerber-Lemaire S. Modulating the Surface Properties of Lithium Niobate Nanoparticles by Multifunctional Coatings Using Water-in-Oil Microemulsions. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:522. [PMID: 36770484 PMCID: PMC9921616 DOI: 10.3390/nano13030522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/13/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Inorganic nanoparticles (NPs) have emerged as promising tools in biomedical applications, owing to their inherent physicochemical properties and their ease of functionalization. In all potential applications, the surface functionalization strategy is a key step to ensure that NPs are able to overcome the barriers encountered in physiological media, while introducing specific reactive moieties to enable post-functionalization. Silanization appears as a versatile NP-coating strategy, due to the biocompatibility and stability of silica, thus justifying the need for robust and well controlled silanization protocols. Herein, we describe a procedure for the silica coating of harmonic metal oxide NPs (LiNbO3, LNO) using a water-in-oil microemulsion (W/O ME) approach. Through optimized ME conditions, the silanization of LNO NPs was achieved by the condensation of silica precursors (TEOS, APTES derivatives) on the oxide surface, resulting in the formation of coated NPs displaying carboxyl (LNO@COOH) or azide (LNO@N3) reactive moieties. LNO@COOH NPs were further conjugated to an unnatural azido-containing small peptide to obtain silica-coated LNO NPs (LNO@Talys), displaying both azide and carboxyl moieties, which are well suited for biomedical applications due to the orthogonality of their surface functional groups, their colloidal stability in aqueous medium, and their anti-fouling properties.
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Affiliation(s)
- Adrian Gheata
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Group for Functionalized Biomaterials, 1015 Lausanne, Switzerland
| | - Alessandra Spada
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Group for Functionalized Biomaterials, 1015 Lausanne, Switzerland
| | - Manon Wittwer
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Group for Functionalized Biomaterials, 1015 Lausanne, Switzerland
- Département de Chimie, École Normale Supérieure, PSL University, 75005 Paris, France
| | - Ameni Dhouib
- Université Savoie Mont-Blanc, SYMME, 74000 Annecy, France
| | - Emilie Molina
- Université Savoie Mont-Blanc, SYMME, 74000 Annecy, France
| | | | - Sandrine Gerber-Lemaire
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Group for Functionalized Biomaterials, 1015 Lausanne, Switzerland
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3
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Klimkevicius V, Voronovic E, Jarockyte G, Skripka A, Vetrone F, Rotomskis R, Katelnikovas A, Karabanovas V. Polymer brush coated upconverting nanoparticles with improved colloidal stability and cellular labeling. J Mater Chem B 2022; 10:625-636. [PMID: 34989749 DOI: 10.1039/d1tb01644j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Upconverting nanoparticles (UCNPs) possess great potential for biomedical application. UCNPs absorb and convert near-infrared (NIR) radiation in the biological imaging window to visible (Vis) and even ultraviolet (UV) radiation. NIR excitation offers reduced scattering and diminished autofluorescence in biological samples, whereas the emitted UV-Vis and NIR photons can be used for cancer treatment and imaging, respectively. However, UCNPs are usually synthesized in organic solvents and are not readily suitable for biomedical application due to the hydrophobic nature of their surface. Herein, we have removed the hydrophobic ligands from the synthesized UCNPs and coated the bare UCNPs with two custom-made hydrophilic polyelectrolytes (synthesized via the reversible addition-fragmentation chain transfer (RAFT) polymerization method). Polymers containing different amounts of PEGylated and carboxylic groups were studied. Coating with both polymers increased the upconversion (UC) emission intensity and photoluminescence lifetime values of the UCNPs, which directly translates to more efficient cancer cell labeling nanoprobes. The polymer composition plays a crucial role in the modification of UCNPs, not only with respect to their colloidal stability, but also with respect to the cellular uptake. Colloidally unstable bare UCNPs aggregate in cell culture media and precipitate, rendering themselves unsuitable for any biomedical use. However, stabilization with polymers prevents UCNPs from aggregation, increases their uptake in cells, and improves the quality of cellular labeling. This investigation sheds light on the appropriate coating for UCNPs and provides relevant insights for the rational development of imaging and therapeutic tools.
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Affiliation(s)
- Vaidas Klimkevicius
- Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225, Vilnius, Lithuania.
| | - Evelina Voronovic
- Biomedical Physics Laboratory of National Cancer Institute, Baublio 3B, LT-08406, Vilnius, Lithuania. .,Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Saulėtekio 11, LT-10223 Vilnius, Lithuania.,Life Science Center, Vilnius University, Sauletekio av. 7, LT-10257, Vilnius, Lithuania
| | - Greta Jarockyte
- Biomedical Physics Laboratory of National Cancer Institute, Baublio 3B, LT-08406, Vilnius, Lithuania. .,Life Science Center, Vilnius University, Sauletekio av. 7, LT-10257, Vilnius, Lithuania
| | - Artiom Skripka
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, Université du Québec, 1650, boul. Lionel-Boulet, J3X 1S2, Varennes, QC, Canada
| | - Fiorenzo Vetrone
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, Université du Québec, 1650, boul. Lionel-Boulet, J3X 1S2, Varennes, QC, Canada
| | - Ricardas Rotomskis
- Biomedical Physics Laboratory of National Cancer Institute, Baublio 3B, LT-08406, Vilnius, Lithuania. .,Biophotonics Group of Laser Research Centre, Vilnius University, Saulėtekio 9, c.3, LT-10222, Vilnius, Lithuania
| | - Arturas Katelnikovas
- Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225, Vilnius, Lithuania.
| | - Vitalijus Karabanovas
- Biomedical Physics Laboratory of National Cancer Institute, Baublio 3B, LT-08406, Vilnius, Lithuania. .,Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Saulėtekio 11, LT-10223 Vilnius, Lithuania
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4
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Lv S, Sylvestre M, Song K, Pun SH. Development of D-melittin polymeric nanoparticles for anti-cancer treatment. Biomaterials 2021; 277:121076. [PMID: 34461456 DOI: 10.1016/j.biomaterials.2021.121076] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 08/09/2021] [Accepted: 08/16/2021] [Indexed: 12/15/2022]
Abstract
Melittin, the primary peptide component of bee venom, is a potent cytolytic anti-cancer peptide with established anti-tumor activity. However, practical application of melittin in oncology is hampered by its strong, nonspecific hemolytic activity and intrinsic instability. To address these shortcomings, delivery systems are used to overcome the drawbacks of melittin and facilitate its safe delivery. Yet, a recent study revealed that encapsulated melittin remains immunogenic and can act as an adjuvant to elicit a fatal antibody immune response against the delivery carrier. We discovered that substitution of l-amino acids with d-amino acids mitigates this problem: D-melittin nanoformulations induce significantly decreased immune response, resulting in excellent safety without compromising cytolytic potential. We now report the first application of D-melittin and its micellar formulations for cancer treatment. D-melittin was delivered by a pH-sensitive polymer carrier that (i) forms micellar nanoparticles at normal physiological conditions, encapsulating melittin, and (ii) dissociates at endosomal pH, restoring melittin activity. D-melittin micelles (DMM) exhibits significant cytotoxicity and induces hemolysis in a pH-dependent manner. In addition, DMM induce immunogenic cell death, revealing its potential for cancer immunotherapy. Indeed, in vivo studies demonstrated the superior safety profile of DMM over free peptide and improved efficacy at prohibiting tumor growth. Overall, we present the first application of micellar D-melittin for cancer therapy. These findings establish a new strategy for safe, systemic delivery of melittin, unlocking a potential pathway toward clinical translation for cytotoxic peptides as anti-cancer agents. which can revolutionize in vivo delivery of therapeutic peptides and peptide antigens.
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Affiliation(s)
- Shixian Lv
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, United States.
| | - Meilyn Sylvestre
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, United States.
| | - Kefan Song
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, United States.
| | - Suzie H Pun
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, United States.
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5
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Mori A, Kobayashi Y, Nirasawa K, Negishi Y, Asayama S. Structure-Activity Relationship of Mono-Ion Complexes for Plasmid DNA Delivery by Muscular Injection. Pharmaceutics 2021; 13:pharmaceutics13010078. [PMID: 33430003 PMCID: PMC7828051 DOI: 10.3390/pharmaceutics13010078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/04/2021] [Accepted: 01/04/2021] [Indexed: 11/16/2022] Open
Abstract
The structure-activity relationship of mono-ion complexes (MICs) for plasmid DNA (pDNA) delivery by muscular injection is demonstrated. MICs were formed between pDNA and monocationic poly(ethylene glycol) (PEG) macromolecules. As monocationic PEGs, the ω-amide-pentylimidazolium (APe-Im) end-modified PEGs with a stable amide (Am) and hydrolytic ester (Es) bond, that is, APe-Im-Am-PEG and APe-Im-Es-PEG, respectively, are synthesized. The difference between the APe-Im-Am-PEG and APe-Im-Es-PEG was only a spacer structure between a terminal cation and a PEG chain. The resulting pDNA MICs with APe-Im-Am-PEG at a charge ratio (+/-) of 32 or 64 were more stable than those with APe-Im-Es-PEG in the presence of serum proteins. The highest gene expression by muscular injection was achieved using the APe-Im-Am-PEG/pDNA MIC at a charge ratio (+/-) of 32 with a smaller particle diameter of approximately 50 nm, as compared to that charge ratio of 64. Consequently, the pDNA MIC with the monocationic PEG with a stable amide spacer, as compared to a hydrolytic ester spacer, is considered to be suitable for the highest gene expression by muscular injection.
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Affiliation(s)
- Amika Mori
- Department of Applied Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan; (A.M.); (Y.K.)
| | - Yuki Kobayashi
- Department of Applied Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan; (A.M.); (Y.K.)
| | - Kei Nirasawa
- Department of Drug Delivery and Molecular Biopharmaceutics, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan; (K.N.); (Y.N.)
| | - Yoichi Negishi
- Department of Drug Delivery and Molecular Biopharmaceutics, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan; (K.N.); (Y.N.)
| | - Shoichiro Asayama
- Department of Applied Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan; (A.M.); (Y.K.)
- Correspondence: ; Tel.: +81-42-677-1111 (ext. 4976)
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6
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Asayama S. Molecular Design of Polymer-based Carriers for Plasmid DNA Delivery In Vitro and In Vivo. CHEM LETT 2020. [DOI: 10.1246/cl.190696] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shoichiro Asayama
- Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
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7
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Li WQ, Wu JY, Xiang DX, Luo SL, Hu XB, Tang TT, Sun TL, Liu XY. Micelles Loaded With Puerarin And Modified With Triphenylphosphonium Cation Possess Mitochondrial Targeting And Demonstrate Enhanced Protective Effect Against Isoprenaline-Induced H9c2 Cells Apoptosis. Int J Nanomedicine 2019; 14:8345-8360. [PMID: 31695371 PMCID: PMC6814317 DOI: 10.2147/ijn.s219670] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 09/16/2019] [Indexed: 12/16/2022] Open
Abstract
Background The protective role of puerarin (PUE) against myocardial infarction is closely related to its regulation on mitochondria. However, free PUE can hardly reach the mitochondria of ischemic cardiomyocytes due to the lack of mitochondrial targeting of PUE. Here PUE was loaded into mitochondria-targeted micelles (PUE@TPP/PEG-PE) for precisely delivering PUE into mitochondria with the aim of enhancing the anti-apoptosis effect. Methods The mitochondriotropic polymer TPP-PEG-PE was synthesized for the preparation of PUE@TPP/PEG-PE micelles modified with triphenylphosphonium (TPP) cation. The physicochemical properties and anti-apoptosis effect of PUE@TPP/PEG-PE micelles were investigated. The coumarin 6 (C6)-labeled TPP/PEG-PE (C6@TPP/PEG-PE) micelles were used to observe the enhanced cellular uptake, mitochondrial targeting and lysosomes escape. Moreover, in vivo and ex vivo biodistribution of lipophilic near-infrared dye 1,1ʹ-dioctadecyl-3,3,3′,3ʹ-tetramethylindotricarbocyanine iodide (DiR)-labeled PUE@TPP/PEG-PE (DiR@TPP/PEG-PE) micelles were detected through fluorescence imaging. Results The successful synthesis of TPP-PEG-PE conjugate was confirmed. PUE@TPP/PEG-PE micelles had a particle size of 17.1 nm, a zeta potential of −6.2 mV, and a sustained-release behavior. The in vitro results showed that the intracellular uptake of C6@TPP/PEG-PE micelles was significantly enhanced in H9c2 cells. C6@TPP/PEG-PE micelles could deliver C6 to mitochondria and reduce the capture of lysosomes. In addition, compared with the PUE@PEG-PE micelles and free PUE, the PUE@TPP/PEG-PE micelles exerted an enhanced protective effect against isoprenaline-induced H9c2 cell apoptosis, as evident by the decreased percentage of apoptotic cells, Caspase-3 activity, ROS level, Bax expression, and increased Bcl-2 expression. The in vivo detecting results of the targeting effect using DiR probe also indicated that TPP/PEG-PE micelles could accumulate and retain in the ischemic myocardium. Conclusion The results of this study demonstrate the promising potential of applying PUE@TPP/PEG-PE micelles in mitochondria-targeted drug delivery to achieve maximum therapeutic effects of PUE.
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Affiliation(s)
- Wen-Qun Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Jun-Yong Wu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Da-Xiong Xiang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Shi-Lin Luo
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Xiong-Bin Hu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Tian-Tian Tang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Tao-Li Sun
- Key Laboratory Breeding Base of Hu'nan Oriented Fundamental and Applied Research of Innovative Pharmaceutics, College of Pharmacy, Changsha Medical University, Changsha 410219, People's Republic of China
| | - Xin-Yi Liu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
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8
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Valencia-Rivero KT, Cruz JC, Wagner-Gutierrez N, D’Amore A, Miranda MC, López R, Guerrero A, Wagner W, Sandoval N, Briceño JC. Evaluation of Microscopic Structure−Function Relationships of PEGylated Small Intestinal Submucosa Vascular Grafts for Arteriovenous Connection. ACS APPLIED BIO MATERIALS 2019; 2:3706-3721. [DOI: 10.1021/acsabm.9b00158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Juan C. Cruz
- Biomedical Engineering Department, Universidad de los Andes, Bogotá, Colombia
| | | | - Antonio D’Amore
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
- Fondazione RiMED, Palermo, Italy
| | - Maria C. Miranda
- Fundación Cardioinfantil - Cardiovascular Institution, Bogotá, Colombia
| | - Rocío López
- Fundación Santa Fe de Bogotá, Bogotá, Colombia
- School of Medicine, Universidad de los Andes, Bogotá, Colombia
| | - Albert Guerrero
- Fundación Cardioinfantil - Cardiovascular Institution, Bogotá, Colombia
| | - William Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Néstor Sandoval
- Fundación Cardioinfantil - Cardiovascular Institution, Bogotá, Colombia
| | - Juan C. Briceño
- Biomedical Engineering Department, Universidad de los Andes, Bogotá, Colombia
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9
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Addisu KD, Hailemeskel BZ, Mekuria SL, Andrgie AT, Lin YC, Tsai HC. Bioinspired, Manganese-Chelated Alginate-Polydopamine Nanomaterials for Efficient in Vivo T 1-Weighted Magnetic Resonance Imaging. ACS APPLIED MATERIALS & INTERFACES 2018; 10:5147-5160. [PMID: 29277987 DOI: 10.1021/acsami.7b13396] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Manganese-based nanomaterials are an emerging new class of magnetic resonance imaging (MRI) contrast agents (CAs) that provide impressive contrast abilities. MRI CAs that can respond to pathophysiological parameters such as pH or redox potential are also highly in demand for MRI-guided tumor diagnosis. Until now, synthesizing nanomaterials with good biocompatibility, physiochemical stability, and good contrast effects remains a challenge. This study investigated two new systems of calcium/manganese cations complexed with either alginate-polydopamine or alginate-dopamine nanogels [AlgPDA(Ca/Mn) NG or AlgDA(Ca/Mn) NG]. Under such systems, Ca cations form ionic interactions via carboxylic acids of the Alg backbone to enhance the stability of the synthetic nanogels (NGs). Likewise, complexation of Mn cations also increased the colloidal stability of the synthetic NGs. The magnetic property of the prepared CAs was confirmed with superconducting quantum interference device measurements, proving the potential paramagnetic property. Hence, the T1 relaxivity measurement showed that PDA-complexed synthetic NGs reveal a strong positive contrast enhancement with r1 = 12.54 mM-1·s-1 in 7.0 T MRI images, whereas DA-complexed synthetic NGs showed a relatively lower T1 relaxivity effect with r1 = 10.13 mM-1·s-1. In addition, both the synthetic NGs exhibit negligible cytotoxicity with >92% cell viability up to 0.25 mM concentration, when incubated with the mouse macrophage (RAW 264.7) and HeLa cells, and high biocompatibility under in vivo analysis. The in vivo MRI test indicates that the synthetic NG exhibits a high signal-to-noise ratio for longer hours, which provides a longer image acquisition time for tumor and anatomical imaging. Furthermore, T1-weighted MRI results revealed that PEGylated AlgPDA(Ca/Mn) NGs significantly enhanced the signals from liver and tumor tissues. Therefore, owing to the enhanced permeability and retention effect, significantly enhanced in vitro and in vivo imagings, low cost, and one-pot synthesis method, the Mn-based biomimetic approach used in this study provides a promising and competitive alternative for noninvasive tumor detection and comprehensive anatomical diagnosis.
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Affiliation(s)
- Kefyalew Dagnew Addisu
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology , Taipei 106, Taiwan, ROC
| | - Balkew Zewge Hailemeskel
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology , Taipei 106, Taiwan, ROC
| | - Shewaye Lakew Mekuria
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology , Taipei 106, Taiwan, ROC
| | - Abegaz Tizazu Andrgie
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology , Taipei 106, Taiwan, ROC
| | - Yu-Chun Lin
- Department of Pathology, National Defense Medical Center, Tri-Service General Hospital , Taipei 114, Taiwan, ROC
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology , Taipei 106, Taiwan, ROC
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10
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Oda CMR, Fernandes RS, de Araújo Lopes SC, de Oliveira MC, Cardoso VN, Santos DM, de Castro Pimenta AM, Malachias A, Paniago R, Townsend DM, Colletti PM, Rubello D, Alves RJ, de Barros ALB, Leite EA. Synthesis, characterization and radiolabeling of polymeric nano-micelles as a platform for tumor delivering. Biomed Pharmacother 2017; 89:268-275. [PMID: 28235689 DOI: 10.1016/j.biopha.2017.01.144] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 01/25/2017] [Indexed: 10/20/2022] Open
Abstract
The use of nanoparticles for diagnostic approaches leads to higher accumulation in the targeting tissue promoting a better signal-to-noise ratio and consequently, early tumor detection through scintigraphic techniques. Such approaches have inherent advantages, including the possibility of association with a variety of gamma-emitting radionuclides available, among them, Tecnethium-99m (99mTc). 99mTc is readily conjugated with nanoparticles using chelating agents, such as diethylenetriaminepentaacetic acid (DTPA). Leveraging this approach, we synthesized polymeric micelles (PM) consisting of 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethyleneglycol)-2000] (DSPE-mPEG2000) functionalized with DTPA for radiolabeling with 99mTc. Micelles made up of DSPE-mPEG2000 and DSPE-PEG2000-DTPA had a mean diameter of ∼10nm, as measured by DLS and SAXS techniques, and a zeta potential of -2.7±1.1mV. Radiolabeled micelles exhibited high radiochemical yields and stability. In vivo assays indicated long blood circulation time (456.3min). High uptake in liver, spleen and kidneys was observed in the biodistribution and imaging studies on healthy and tumor-bearing mice. In addition, a high tumor-to-muscle ratio was detected, which increased over time, showing accumulation of the PM in the tumor region. These findings indicate that this system is a promising platform for simultaneous delivery of therapeutic agents and diagnostic probes.
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Affiliation(s)
- Caroline Mari Ramos Oda
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Renata Salgado Fernandes
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Sávia Caldeira de Araújo Lopes
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Mônica Cristina de Oliveira
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Valbert Nascimento Cardoso
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Daniel Moreira Santos
- Department of Biochemistry and Imunology, Biological Science Institute, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Adriano Monteiro de Castro Pimenta
- Department of Biochemistry and Imunology, Biological Science Institute, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Angelo Malachias
- Department of Physics, Exact Sciences Institute, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Rogério Paniago
- Department of Physics, Exact Sciences Institute, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Danyelle M Townsend
- Department of Drug Discovery and Pharmaceutical Sciences, Medical University of South Carolina, United States
| | - Patrick M Colletti
- Department of Nuclear Medicine, University of Southern California, Los Angeles, CA, United States
| | - Domenico Rubello
- Department of Nuclear Medicine, Imaging and Clinical Pathology, Santa Maria della Misericordia Hospital, Rovigo, Italy.
| | - Ricardo José Alves
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - André Luís Branco de Barros
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Elaine Amaral Leite
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil.
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11
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Corbo C, Parodi A, Evangelopoulos M, Engler DA, Matsunami RK, Engler AC, Molinaro R, Scaria S, Salvatore F, Tasciotti E. Proteomic Profiling of a Biomimetic Drug Delivery Platform. Curr Drug Targets 2016; 16:1540-7. [PMID: 25382209 DOI: 10.2174/1389450115666141109211413] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 10/31/2014] [Indexed: 01/01/2023]
Abstract
Current delivery platforms are typically designed for prolonged circulation that favors superior accumulation of the payload in the targeted tissue. The design of efficient surface modifications determines both a longer circulation time and targeting abilities of particles. The optimization of synthesis protocols to efficiently combine targeting molecules and elements that allow for an increased circulation time can be challenging and almost impossible when several functional elements are needed. On the other hand, in the last decade, the development of bioinspired technologies was proposed as a new approach with which to increase particle safety, biocompatibility and targeting, while maintaining the synthesis protocols simple and reproducible. Recently, we developed a new drug delivery system inspired by the biology of immune cells called leukolike vector (LLV) and formed by a nanoporous silicon core and a shell derived from the leucocyte cell membrane. The goal of this study is to investigate the protein content of the LLV. Here we report the proteomic profiling of the LLV and demonstrate that our approach can be used to modify the surface of synthetic particles with more than 150 leukocyte membrane associated proteins that determine particle safety, circulation time and targeting abilities towards inflamed endothelium.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Ennio Tasciotti
- Department of Nanomedicine, The Houston Methodist Research Institute, Houston, 6670 Bertner Avenue, Houston Texas 77030, USA.
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12
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Shao Z, Shao J, Tan B, Guan S, Liu Z, Zhao Z, He F, Zhao J. Targeted lung cancer therapy: preparation and optimization of transferrin-decorated nanostructured lipid carriers as novel nanomedicine for co-delivery of anticancer drugs and DNA. Int J Nanomedicine 2015; 10:1223-33. [PMID: 25709444 PMCID: PMC4334334 DOI: 10.2147/ijn.s77837] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Purpose Nanostructured lipid carriers (NLC) represent an improved generation of lipid nanoparticles. They have specific nanostructures to accommodate drugs/genes, and thus achieve higher loading capacity. The aim of this study was to develop transferrin (Tf)-decorated NLC as multifunctional nanomedicine for co-delivery of paclitaxel (PTX) and enhanced green fluorescence protein plasmid. Methods Firstly, Tf-conjugated ligands were synthesized. Secondly, PTX- and DNA-loaded NLC (PTX-DNA-NLC) was prepared. Finally, Tf-containing ligands were used for the surface decoration of NLC. Their average size, zeta potential, drug, and gene loading were evaluated. Human non-small cell lung carcinoma cell line (NCl-H460 cells) was used for the testing of in vitro transfection efficiency, and in vivo transfection efficiency of NLC was evaluated on mice bearing NCl-H460 cells. Results Tf-decorated PTX and DNA co-encapsulated NLC (Tf-PTX-DNA-NLC) were nano-sized particles with positive zeta potential. Tf-PTX-DNA-NLC displayed low cytotoxicity, high gene transfection efficiency, and enhanced antitumor activity in vitro and in vivo. Conclusion The results demonstrated that Tf-PTX-DNA-NLC can achieve impressive antitumor activity and gene transfection efficiency. Tf decoration also enhanced the active targeting ability of the carriers to NCl-H460 cells. The novel drug and gene delivery system offers a promising strategy for the treatment of lung cancer.
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Affiliation(s)
- Zhenyu Shao
- Department of Radiotherapy, Cancer Centre, Qilu Hospital, Shandong University, Ji'nan, Shandong, People's Republic of China
| | - Jingyu Shao
- Affiliated Hospital of Northwest Institute of Mechanical and Electrical Engineering, Xianyang, Shaanxi, People's Republic of China
| | - Bingxu Tan
- Department of Radiotherapy, Cancer Centre, Qilu Hospital, Shandong University, Ji'nan, Shandong, People's Republic of China
| | - Shanghui Guan
- Department of Radiotherapy, Cancer Centre, Qilu Hospital, Shandong University, Ji'nan, Shandong, People's Republic of China
| | - Zhulong Liu
- Department of Radiotherapy, Cancer Centre, Qilu Hospital, Shandong University, Ji'nan, Shandong, People's Republic of China
| | - Zengjun Zhao
- Department of Radiotherapy, Cancer Centre, Qilu Hospital, Shandong University, Ji'nan, Shandong, People's Republic of China
| | - Fangfang He
- Department of Radiotherapy, Cancer Centre, Qilu Hospital, Shandong University, Ji'nan, Shandong, People's Republic of China
| | - Jian Zhao
- Department of Thoracic Surgery, Qilu Hospital, Shandong University, Ji'nan, Shandong, People's Republic of China
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13
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Faig A, Petersen L, Moghe PV, Uhrich KE. Impact of hydrophobic chain composition on amphiphilic macromolecule antiatherogenic bioactivity. Biomacromolecules 2014; 15:3328-37. [PMID: 25070717 PMCID: PMC4157764 DOI: 10.1021/bm500809f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/24/2014] [Indexed: 01/08/2023]
Abstract
Amphiphilic macromolecules (AMs) composed of sugar backbones modified with branched aliphatic chains and a poly(ethylene glycol) (PEG) tail can inhibit macrophage uptake of oxidized low-density lipoproteins (oxLDL), a major event underlying atherosclerosis development. Previous studies indicate that AM hydrophobic domains influence this bioactivity through interacting with macrophage scavenger receptors, which can contain basic and/or hydrophobic residues within their binding pockets. In this study, we compare two classes of AMs to investigate their ability to promote athero-protective potency via hydrogen-bonding or hydrophobic interactions with scavenger receptors. A series of ether-AMs, containing methoxy-terminated aliphatic arms capable of hydrogen-bonding, was synthesized. Compared to analogous AMs containing no ether moieties (alkyl-AMs), ether-AMs showed improved cytotoxicity profiles. Increasing AM hydrophobicity via incorporation of longer and/or alkyl-terminated hydrophobic chains yielded macromolecules with enhanced oxLDL uptake inhibition. These findings indicate that hydrophobic interactions and the length of AM aliphatic arms more significantly influence AM bioactivity than hydrogen-bonding.
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Affiliation(s)
- Allison Faig
- Department of Chemistry and Chemical Biology, Department
of Biomedical Engineering, and Department of Chemical and Biochemical
Engineering, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Latrisha
K. Petersen
- Department of Chemistry and Chemical Biology, Department
of Biomedical Engineering, and Department of Chemical and Biochemical
Engineering, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Prabhas V. Moghe
- Department of Chemistry and Chemical Biology, Department
of Biomedical Engineering, and Department of Chemical and Biochemical
Engineering, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Kathryn E. Uhrich
- Department of Chemistry and Chemical Biology, Department
of Biomedical Engineering, and Department of Chemical and Biochemical
Engineering, Rutgers University, Piscataway, New Jersey 08854, United States
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