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Pinelli F, Saadati M, Rossetti A, Rossi F, Sacchetti A. On the influence of polyethyleneimine modification in nanogel-driven drug delivery. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2
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Gruber A, Navarro L, Klinger D. Dual-reactive nanogels for orthogonal functionalization of hydrophilic shell and amphiphilic network. SOFT MATTER 2022; 18:2858-2871. [PMID: 35348179 DOI: 10.1039/d2sm00116k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Amphiphilic nanogels (NGs) combine a soft, water-swollen hydrogel matrix with internal hydrophobic domains. While these domains can encapsulate hydrophobic cargoes, the amphiphilic particle surface can reduce colloidal stability and/or limit biological half-life. Therefore, a functional hydrophilic shell is needed to shield the amphiphilic network and tune interactions with biological systems. To adjust core and shell properties independently, we developed a synthetic strategy that uses preformed dual-reactive nanogels. In a first step, emulsion copolymerization of pentafluorophenyl methacrylate (PFPMA) and a reduction-cleavable crosslinker produced precursor particles for subsequent network modification. Orthogonal shell reactivity was installed by using an amphiphilic block copolymer (BCP) surfactant during this particle preparation step. Here, the hydrophilic block poly(polyethylene glycol methyl ether methacrylate) (PPEGMA) contains a reactive alkyne end group for successive functionalization. The hydrophobic block (P(PFPMA-co-MAPMA) contains random methacryl-amido propyl methacrylamide (MAPMA) units to covalently attach the surfactant to the growing PPFPMA network. In the second step, orthogonal modification of the core and shell was demonstrated. Network functionalization with combinations of hydrophilic (acidic, neutral, or basic) and hydrophobic (cholesterol) groups gave a library of pH- and redox-sensitive amphiphilic NGs. Stimuli-responsive properties were demonstrated by pH-dependent swelling and reduction-induced degradation via dynamic light scattering. Subsequently, copper-catalyzed azide-alkyne cycloaddition was used to attach azide-modified rhodamine as model compound to the shell (followed by UV-Vis). Overall, this strategy provides a versatile platform to develop multi-functional amphiphilic nanogels as carriers for hydrophobic cargoes.
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Affiliation(s)
- Alexandra Gruber
- Institute of Pharmacy (Pharmaceutical Chemistry), Freie Universität Berlin, Königin-Luise-Straße 2-4, 14195 Berlin, Germany.
| | - Lucila Navarro
- Institute of Pharmacy (Pharmaceutical Chemistry), Freie Universität Berlin, Königin-Luise-Straße 2-4, 14195 Berlin, Germany.
| | - Daniel Klinger
- Institute of Pharmacy (Pharmaceutical Chemistry), Freie Universität Berlin, Königin-Luise-Straße 2-4, 14195 Berlin, Germany.
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Xing Y, Lu P, Xue Z, Liang C, Zhang B, Kebebe D, Liu H, Liu Z. Nano-Strategies for Improving the Bioavailability of Inhaled Pharmaceutical Formulations. Mini Rev Med Chem 2021; 20:1258-1271. [PMID: 32386491 DOI: 10.2174/1389557520666200509235945] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 05/02/2019] [Accepted: 12/02/2019] [Indexed: 02/06/2023]
Abstract
Pulmonary pharmaceutical formulations are targeted for the treatment of respiratory diseases. However, their application is limited due to the physiological characteristics of the lungs, such as branching structure, mucociliary and macrophages, as well as certain properties of the drugs like particle size and solubility. Nano-formulations can ameliorate particle sizes and improve drug solubility to enhance bioavailability in the lungs. The nano-formulations for lungs reviewed in this article can be classified into nanocarriers, no-carrier-added nanosuspensions and polymer-drug conjugates. Compared with conventional inhalation preparations, these novel pulmonary pharmaceutical formulations have their own advantages, such as increasing drug solubility for better absorption and less inflammatory reaction caused by the aggregation of insoluble drugs; prolonging pulmonary retention time and reducing drug clearance; improving the patient compliance by avoiding multiple repeated administrations. This review will provide the reader with some background information for pulmonary drug delivery and give an overview of the existing literature about nano-formulations for pulmonary application to explore nano-strategies for improving the bioavailability of pulmonary pharmaceutical formulations.
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Affiliation(s)
- Yue Xing
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Peng Lu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zhifeng Xue
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Chunxia Liang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Bing Zhang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Dereje Kebebe
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Hongfei Liu
- College of Pharmacy, Jiangsu University, Zhenjiang 212013, China
| | - Zhidong Liu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
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4
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Effect of surface decoration on properties and drug release ability of nanogels. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126164] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Influence of the Core Formulation on Features and Drug Delivery Ability of Carbamate-Based Nanogels. Int J Mol Sci 2020; 21:ijms21186621. [PMID: 32927733 PMCID: PMC7555386 DOI: 10.3390/ijms21186621] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 01/07/2023] Open
Abstract
In the last years, nanogels have emerged as one of the most promising classes of novel drug delivery vehicles since they can be employed in multiple fields, such as various therapeutics or diagnostics, and with different classes of compounds and active molecules. Their features, such as a high volume to surface ratio, excellent drug loading and release ability, as well as biocompatibility and tunable behavior, are unique, and, nowadays, great efforts are made to develop new formulations that can be employed in a wider range of applications. Polyethylene glycol (PEG)-polyethylenimine (PEI) nanogels probably represent the baseline of this class of biomaterials and they are still largely employed and studied. In any way, the possibility to exploit new core formulations for nanogels is certainly very interesting in order to understand the influence of different polymer chains on the final properties of the system. In this research, we explore and make a comparison between PEG-PEI nanogels and two other different formulations: pluronic F127-PEI nanogels and PEG-Jeffamine nanogels. We propose nanogels synthesis methods, their chemical and physical characterization, as well as their stability analysis, and we focus on the different drug delivery ability that these structures exhibit working with different typologies of drug mimetics.
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Pinelli F, Perale G, Rossi F. Coating and Functionalization Strategies for Nanogels and Nanoparticles for Selective Drug Delivery. Gels 2020; 6:gels6010006. [PMID: 32033057 PMCID: PMC7151136 DOI: 10.3390/gels6010006] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 12/21/2022] Open
Abstract
Drug delivery is a fascinating research field with several development opportunities. Great attention is now focused on colloidal systems, nanoparticles, and nanogels and on the possibility of modifying them in order to obtain precise targeted drug delivery systems. The aim of this review is to give an overview of the main available surface functionalization and coating strategies that can be adopted in order to modify the selectivity of the nanoparticles in the delivery process and obtain a final system with great targeted drug delivery ability. We also highlight the most important fields of application of these kinds of delivery systems and we propose a comparison between the advantages and disadvantages of the described functionalization strategies.
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Affiliation(s)
- Filippo Pinelli
- Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, via Mancinelli 7, 20131 Milan, Italy;
| | - Giuseppe Perale
- Faculty of Biomedical Sciences, University of Southern Switzerland (USI), Via Buffi 13, 6900 Lugano, Switzerland;
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Filippo Rossi
- Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, via Mancinelli 7, 20131 Milan, Italy;
- Correspondence: ; Tel.: +39-02-2399-3145
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Mauri E, Veglianese P, Papa S, Rossetti A, De Paola M, Mariani A, Posel Z, Posocco P, Sacchetti A, Rossi F. Effects of primary amine-based coatings on microglia internalization of nanogels. Colloids Surf B Biointerfaces 2020; 185:110574. [DOI: 10.1016/j.colsurfb.2019.110574] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/08/2019] [Accepted: 10/09/2019] [Indexed: 12/20/2022]
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Kordalivand N, Tondini E, Lau CYJ, Vermonden T, Mastrobattista E, Hennink WE, Ossendorp F, Nostrum CFV. Cationic synthetic long peptides-loaded nanogels: An efficient therapeutic vaccine formulation for induction of T-cell responses. J Control Release 2019; 315:114-125. [PMID: 31672626 DOI: 10.1016/j.jconrel.2019.10.048] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 10/23/2019] [Accepted: 10/26/2019] [Indexed: 12/18/2022]
Abstract
Recent studies have shown a high potency of protein-based vaccines for cell-mediated cancer immunotherapy. However, due to their poor cellular uptake, efficient immune responses with soluble protein antigens are often not observed. As a result of superior cellular uptake, nanogels loaded with antigenic peptides were investigated in this study as carrier systems for cancer immunotherapy. Different synthetic long peptides (SLPs) containing the CTL and CD4+ T-helper (Help) epitopes were synthesized and covalently conjugated via disulfide bonds to the polymeric network of cationic dextran nanogels. Cationic nanogels with a size of 210 nm, positive zeta potential (+24 mV) and high peptide loading content (15%) showed triggered release of the loaded peptides under reducing conditions. An in vitro study demonstrated the capability of cationic nanogels to maturate dendritic cells (DCs). Importantly, covalently SLP-loaded nanogels adjuvanted with poly(I:C) showed superior CD8+ T cell responses compared to soluble peptides and nanogel formulations with physically loaded peptides both in vitro and in vivo. In conclusion, covalently SLPs-loaded cationic nanogels are a promising system to provoke immune responses for therapeutic cancer vaccination.
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Affiliation(s)
- Neda Kordalivand
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Elena Tondini
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, the Netherlands
| | - Chun Yin Jerry Lau
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Tina Vermonden
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Enrico Mastrobattista
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - Wim E Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands.
| | - Ferry Ossendorp
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, the Netherlands
| | - Cornelus F van Nostrum
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
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Nezami S, Sadeghi M. pH-sensitive free AgNPs composite and nanocomposite beads based on starch as drug delivery systems. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02801-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Eslami P, Rossi F, Fedeli S. Hybrid Nanogels: Stealth and Biocompatible Structures for Drug Delivery Applications. Pharmaceutics 2019; 11:E71. [PMID: 30736486 PMCID: PMC6409538 DOI: 10.3390/pharmaceutics11020071] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 02/02/2019] [Accepted: 02/04/2019] [Indexed: 01/12/2023] Open
Abstract
Considering nanogels, we have focused our attention on hybrid nanosystems for drug delivery and biomedical purposes. The distinctive strength of these structures is the capability to join the properties of nanosystems with the polymeric structures, where versatility is strongly demanded for biomedical applications. Alongside with the therapeutic effect, a non-secondary requirement of the nanosystem is indeed its biocompatibility. The importance to fulfill this aim is not only driven by the priority to reduce, as much as possible, the inflammatory or the immune response of the organism, but also by the need to improve circulation lifetime, biodistribution, and bioavailability of the carried drugs. In this framework, we have therefore gathered the hybrid nanogels specifically designed to increase their biocompatibility, evade the recognition by the immune system, and overcome the self-defense mechanisms present in the bloodstream of the host organism. The works have been essentially organized according to the hybrid morphologies and to the strategies adopted to fulfill these aims: Nanogels combined with nanoparticles or with liposomes, and involving polyethylene glycol chains or zwitterionic polymers.
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Affiliation(s)
- Parisa Eslami
- Laboratory of Molecular Magnetism (LaMM), Department of Chemistry "Ugo Shiff", University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy.
| | - Filippo Rossi
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy.
| | - Stefano Fedeli
- Colorobbia Research Center (CERICOL), via Pietramarina 53, 50053 Sovigliana Vinci, Italy.
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