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Tailoring surface properties of liposomes for dexamethasone intraocular administration. J Control Release 2023; 354:323-336. [PMID: 36641118 DOI: 10.1016/j.jconrel.2023.01.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/31/2022] [Accepted: 01/09/2023] [Indexed: 01/16/2023]
Abstract
Diseases of the posterior eye segment are often characterized by intraocular inflammation, which causes, in the long term, severe impairment of eye functions and, ultimately, vision loss. Aimed at enhancing the delivery of anti-inflammatory drugs to the posterior eye segment upon intravitreal administration, we developed liposomes with an engineered surface to control their diffusivity in the vitreous and retina association. Hydrogenated soybean phosphatidylcholine (HSPC)/cholesterol liposomes were coated with (agmatinyl)6-maltotriosyl-acetamido-N-(octadec-9-en-1-yl)hexanamide (Agm6-M-Oleate), a synthetic non-peptidic cell penetration enhancer (CPE), and/or 5% of mPEG2kDa-DSPE. The zeta potential of liposomes increased, and the mobility in bovine vitreous and colloidal stability decreased with the Agm6-M-Oleate coating concentration. Oppositely, mPEG2kDa-DSPE decreased the zeta potential of liposomes and restored both the diffusivity and the stability in vitreous. Liposomes with 5 mol% Agm6-M-Oleate coating were well tolerated by ARPE-19 retina cells either with or without mPEG2kDa-DSPE, while 10 mol% Agm6-M-Oleate showed cytotoxicity. Agm6-M-Oleate promoted the association of liposomes to ARPE-19 cells with respect to plain liposomes, while mPEG2kDa-DSPE slightly reduced the cell interaction. Dexamethasone hemisuccinate (DH) was remotely loaded into liposomes with a loading capacity of ∼10 wt/wt%. Interestingly, mPEG2kDa-DSPE coating reduced the rate of DH release and enhanced the disposition of Agm6-M-Oleate coated liposomes in the ARPE-19 cell cytosol resulting in a more efficient anti-inflammatory effect. Finally, mPEG2kDa-DSPE enhanced the association of DH-loaded Agm6-M-Oleate coated liposomes to explanted rat retina, which reflected in higher viability of inner and outer nuclear layer cells.
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Bellato F, Feola S, Dalla Verde G, Bellio G, Pirazzini M, Salmaso S, Caliceti P, Cerullo V, Mastrotto F. Mannosylated Polycations Target CD206 + Antigen-Presenting Cells and Mediate T-Cell-Specific Activation in Cancer Vaccination. Biomacromolecules 2022; 23:5148-5163. [PMID: 36394394 DOI: 10.1021/acs.biomac.2c00993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Immunotherapy is deemed one of the most powerful therapeutic approaches to treat cancer. However, limited response and tumor specificity are still major challenges to address. Herein, mannosylated polycations targeting mannose receptor- are developed as vectors for plasmid DNA (pDNA)-based vaccines to improve selective delivery of genetic material to antigen-presenting cells and enhance immune cell activation. Three diblock glycopolycations (M15A12, M29A25, and M58A45) and two triblock copolymers (M29A29B9 and M62A52B32) are generated by using mannose (M), agmatine (A), and butyl (B) derivatives to target CD206, complex nucleic acids, and favor the endosomal escape, respectively. All glycopolycations efficiently complex pDNA at N/P ratios <5, protecting the pDNA from degradation in a physiological milieu. M58A45 and M62A52B32 complexed with plasmid encoding for antigenic ovalbumin (pOVA) trigger the immune activation of cultured dendritic cells, which present the SIINFEKL antigenic peptide via specific major histocompatibility complex-I. Importantly, administration of M58A45/pOVA elicits SIINFEKL-specific T-cell response in C56BL/6 mice bearing the melanoma tumor model B16-OVA, well in line with a reduction in tumor growth. These results qualify mannosylation as an efficient strategy to target immune cells in cancer vaccination and emphasize the potential of these glycopolycations as effective delivery vehicles for nucleic acids.
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Affiliation(s)
- Federica Bellato
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131Padova, Italy
| | - Sara Feola
- Drug Research Program ImmunoViroTherapy Lab (IVT), Faculty of Pharmacy, Helsinki University, Viikinkaari 5E, 00790Helsinki, Finland.,iCAN Digital Precision Cancer Medicine Flagship, FI-00014Helsinki, Finland
| | - Gloria Dalla Verde
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131Padova, Italy
| | - Greta Bellio
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131Padova, Italy
| | - Marco Pirazzini
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/B, 35131Padova, Italy
| | - Stefano Salmaso
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131Padova, Italy
| | - Paolo Caliceti
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131Padova, Italy
| | - Vincenzo Cerullo
- Drug Research Program ImmunoViroTherapy Lab (IVT), Faculty of Pharmacy, Helsinki University, Viikinkaari 5E, 00790Helsinki, Finland.,iCAN Digital Precision Cancer Medicine Flagship, FI-00014Helsinki, Finland
| | - Francesca Mastrotto
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131Padova, Italy
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Udourioh GA, Solomon MM, Epelle EI. Metal Organic Frameworks as Biosensing Materials for COVID-19. Cell Mol Bioeng 2021; 14:535-553. [PMID: 34249167 PMCID: PMC8260022 DOI: 10.1007/s12195-021-00686-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/21/2021] [Indexed: 12/16/2022] Open
Abstract
The novel coronavirus disease (COVID-19) pandemic outbreak is the most startling public health crises with attendant global socio-economic burden ever experienced in the twenty-first century. The level of devastation by this outbreak is such that highly impacted countries will take years to recover. Studies have shown that timely detection based on accelerated sample testing and accurate diagnosis are crucial steps to reducing or preventing the spread of any pandemic outbreak. In this opinionated review, the impacts of metal organic frameworks (MOFs) as a biosensor in a pandemic outbreak is investigated with reference to COVID-19. Biosensing technologies have been proven to be very effective in clinical analyses, especially in assessment of severe infectious diseases. Polymerase chain reactions (PCR, RT-PCR, CRISPR) - based test methods predominantly used for SARS-COV-2 diagnoses have serious limitations and the health scientists and researchers are urged to come up with a more robust and versatile system for solving diagnostic problem associated with the current and future pandemic outbreaks. MOFs, an emerging crystalline material with unique characteristics will serve as promising biosensing materials in a pandemic outbreak such as the one we are in. We hereby highlight the characteristics of MOFs and their sensing applications, potentials as biosensors in a pandemic outbreak and draw the attention of researchers to a new vista of research that needs immediate action.
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Affiliation(s)
- Godwin A. Udourioh
- Analytical/Material Chemistry Laboratory, Department of Pure and Applied Chemistry, Faculty of Natural and Applied Sciences, Veritas University, Abuja, P.O.Box 6523, Garki, Abuja Nigeria
| | - Moses M. Solomon
- Department of Chemistry, College of Science and Technology, Covenant University, Canaanland, Km10, Idiroko Road, Ota, Ogun State Nigeria
| | - Emmanuel I. Epelle
- Institute for Materials and Processes (IMP), School of Engineering, University of Edinburgh, The King’s Buildings, Edinburgh, EH9 3FB UK
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Saeed RM, Abdullah M, Ahram M, Taha MO. Novel Ellipsoid Chitosan-Phthalate Lecithin Nanoparticles for siRNA Delivery. Front Bioeng Biotechnol 2021; 9:695371. [PMID: 34395401 PMCID: PMC8355739 DOI: 10.3389/fbioe.2021.695371] [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: 04/14/2021] [Accepted: 06/15/2021] [Indexed: 12/11/2022] Open
Abstract
Small interfering RNA (siRNA) has received increased interest as a gene therapeutic agent. However, instability and lack of safe, affordable, and effective carrier systems limit siRNA's widespread clinical use. To tackle this issue, synthetic vectors such as liposomes and polymeric nanoparticles have recently been extensively investigated. In this study, we exploited the advantages of reduced cytotoxicity and enhanced cellular penetration of chitosan-phthalate (CSP) together with the merits of lecithin (LC)-based nanoparticles (NPs) to create novel, ellipsoid, non-cytotoxic, tripolyphosphate (TPP)-crosslinked NPs capable of delivering siRNA efficiently. The resulting NPs were characterized by dynamic light scattering (DLS) and transmission electron microscopy (TEM), and were found to be ellipsoid in the shape of ca. 180 nm in size, exhibiting novel double-layer shells, with excellent stability at physiological pH and in serum solutions. MTT assay and confocal fluorescence microscopy showed that CSP-LC-TPP NPs are non-cytotoxic and efficiently penetrate cancer cells in vitro. They achieved 44% silencing against SLUG protein in MDA-MB-453 cancer cells and were significantly superior to a commercial liposome-based transfection agent that achieved only 30% silencing under comparable conditions. Moreover, the NPs protected their siRNA cargos in 50% serum and from being displaced by variable concentrations of heparin. In fact, CSP-LC-TPP NPs achieved 26% transfection efficiency in serum containing cell culture media. Real-time wide-field fluorescence microscopy showed siRNA-loaded CSP-LC-TPP NPs to successfully release their cargo intracellularly. We found that the amphoteric nature of chitosan-phthalate polymer promotes the endosomal escape of siRNA and improves the silencing efficiency.
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Affiliation(s)
- Ramzi Mukred Saeed
- Department of Pharmaceutical Sciences, School of Pharmacy, The University of Jordan, Amman, Jordan
| | - Mohammed Abdullah
- Department of Physiology and Biochemistry, School of Medicine, The University of Jordan, Amman, Jordan
| | - Mamoun Ahram
- Department of Physiology and Biochemistry, School of Medicine, The University of Jordan, Amman, Jordan
| | - Mutasem Omar Taha
- Department of Pharmaceutical Sciences, School of Pharmacy, The University of Jordan, Amman, Jordan
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Wang Y, Hu Y, He Q, Yan J, Xiong H, Wen N, Cai S, Peng D, Liu Y, Liu Z. Metal-organic frameworks for virus detection. Biosens Bioelectron 2020; 169:112604. [PMID: 32980805 PMCID: PMC7489328 DOI: 10.1016/j.bios.2020.112604] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/16/2020] [Accepted: 09/07/2020] [Indexed: 02/07/2023]
Abstract
Virus severely endangers human life and health, and the detection of viruses is essential for the prevention and treatment of associated diseases. Metal-organic framework (MOF), a novel hybrid porous material which is bridged by the metal clusters and organic linkers, has become a promising biosensor platform for virus detection due to its outstanding properties including high surface area, adjustable pore size, easy modification, etc. However, the MOF-based sensing platforms for virus detection are rarely summarized. This review systematically divided the detection platforms into nucleic acid and immunological (antigen and antibody) detection, and the underlying sensing mechanisms were interpreted. The nucleic acid sensing was discussed based on the properties of MOF (such as metal ion, functional group, geometry structure, size, porosity, stability, etc.), revealing the relationship between the sensing performance and properties of MOF. Moreover, antibodies sensing based on the fluorescence detection and antigens sensing based on molecular imprinting or electrochemical immunoassay were highlighted. Furthermore, the remaining challenges and future development of MOF for virus detection were further discussed and proposed. This review will provide valuable references for the construction of sophisticated sensing platform for the detection of viruses, especially the 2019 coronavirus.
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Affiliation(s)
- Ying Wang
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, PR China
| | - Yaqin Hu
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, PR China
| | - Qunye He
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Jianhua Yan
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Hongjie Xiong
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Nachuan Wen
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, PR China
| | - Shundong Cai
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Dongming Peng
- Department of Medicinal Chemistry, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, Hunan Province, PR China
| | - Yanfei Liu
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan Province, PR China.
| | - Zhenbao Liu
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, Hunan Province, PR China.
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Song J, Wang D, Wang J, Shen Q, Xie C, Lu W, Wang R, Liu M. Low molecular weight polyethyleneimine modified by 2-aminoimidazole achieving excellent gene transfection efficiency. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ko S, Park J, Lee Y, Lee DW, Macgregor RB, Oh YK. Biochemical reprogramming of tumors for active modulation of receptor-mediated nanomaterial delivery. Biomaterials 2020; 262:120343. [PMID: 32911254 DOI: 10.1016/j.biomaterials.2020.120343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 08/10/2020] [Accepted: 08/21/2020] [Indexed: 02/01/2023]
Abstract
Here we report that reactive oxygen species (ROS) can reprogram cancer cells to increase the expression of specific receptors and modulate the delivery of nanomaterials. Gold and γ-polyglutamic acid (γ-PGA) hybrid nanoparticles (PGANP) were prepared via a facile single-step process. Gold nanoclusters in PGANP were dispersed within the tangled γ-PGA matrix of the nanoparticles. The condensed assembly of gold nanoclusters in γ-PGA matrix enabled the interparticle plasmon coupling effect, which lacks in single gold nanoparticles. Compared with gold nanoparticles of the similar sizes, PGANP showed significantly higher absorbance at near infrared (NIR) wavelength and light-to-heat converting ratios, resulting in greater temperature increase upon NIR light irradiation. Pretreatment of HeLa cancer cells with methylene blue (MB) generated reactive oxygen species. The ROS reprogrammed the cancer cells to express higher cell membrane levels of gamma glutamyl transferase (GGT), which is known to bind to γ-PGA of PGANP. MB pretreatment significantly enhanced delivery of PGANP to cancer cells. Cancer cells internalized PGANP to a greater extent and, were highly susceptible to irradiation with NIR light, which reduced cell viability to near zero. In vivo, MB pretreatment of HeLa xenograft mice increased the expression of GGT in tumor tissues. In mice pretreated with MB and exposed to NIR irradiation, PGANP treatment resulted in complete tumor ablation. The strategy of actively reprogramming tumor membrane levels of target receptors could be widely applied to overcome the heterogeneity of cancer cells. Although we used interparticle plasmon coupling effect-based PGANP for proving the concept of receptor-modulated delivery, this strategy could be broadly applicable to the active modulation of the receptor-mediated delivery of anticancer nanomaterials.
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Affiliation(s)
- Seungbeom Ko
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Jinwon Park
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Yeon Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Da Woon Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Robert B Macgregor
- Graduate Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Yu-Kyoung Oh
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea.
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De Smedt SC. Lifting shadows off intracellular processing. J Control Release 2019; 310:209-210. [PMID: 31513825 DOI: 10.1016/j.jconrel.2019.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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