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Bugarin A, Patil SA, Tran RQ, Marichev KO. Metal complexes of backbone-halogenated imidazol-2-ylidenes. Inorganica Chim Acta 2024; 572:122263. [PMID: 39156221 PMCID: PMC11326507 DOI: 10.1016/j.ica.2024.122263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
In this manuscript, literature reports on mono- and di-halogen (F, Cl, Br, and I) substituted at positions 4 or/and 4,5 imidazol-2-ylidene (NHC) metal complexes are discussed: particularly, their structural diversity with various metals (groups 6-13), important physicochemical properties, catalytic and medicinal/biological applications are reviewed. To our knowledge, there are no literature reports on group 4 and 5 metal complexes with this type of NHC ligands. Halogenated imidazol-2-ylidene metal complexes deserve special attention because halogens are the classic electron donating groups (mesomerically) in conjugated aromatic/heteroaromatic ring systems, but electron withdrawing inductively. However, they exhibit a significant electron withdrawing inductive effect, thus providing unique electronic properties. This is important for fine tuning of σ-donor abilities of the "carbenic" carbon of imidazol-2-ylidenes, which directly affect catalytic performance of their metal complexes. Other applications, advantages, and disadvantages of halogenated vs. unsubstituted imidazol-2-ylidene metal complexes are critically analyzed and summarized in this review.
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Affiliation(s)
- Alejandro Bugarin
- Department of Chemistry and Physics, Florida Gulf Coast University, Fort Myers, FL, USA
| | - Siddappa A. Patil
- Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Kanakapura, Bangalore, Karnataka, India
| | - Ryan Q. Tran
- Department of Chemistry, Georgia State University, Atlanta, GA, USA
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2
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Ronga L, Varcamonti M, Tesauro D. Structure-Activity Relationships in NHC-Silver Complexes as Antimicrobial Agents. Molecules 2023; 28:molecules28114435. [PMID: 37298911 DOI: 10.3390/molecules28114435] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
Silver has a long history of antimicrobial activity and received an increasing interest in last decades owing to the rise in antimicrobial resistance. The major drawback is the limited duration of its antimicrobial activity. The broad-spectrum silver containing antimicrobial agents are well represented by N-heterocyclic carbenes (NHCs) silver complexes. Due to their stability, this class of complexes can release the active Ag+ cations in prolonged time. Moreover, the properties of NHC can be tuned introducing alkyl moieties on N-heterocycle to provide a range of versatile structures with different stability and lipophilicity. This review presents designed Ag complexes and their biological activity against Gram-positive, Gram-negative bacteria and fungal strains. In particular, the structure-activity relationships underlining the major requirements to increase the capability to induce microorganism death are highlighted here. Moreover, some examples of encapsulation of silver-NHC complexes in polymer-based supramolecular aggregates are reported. The targeted delivery of silver complexes to the infected sites will be the most promising goal for the future.
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Affiliation(s)
- Luisa Ronga
- Institut des Sciences Analytiques et de Physico-Chimie Pour l'Environnement et les Matériaux, Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, 64053 Pau, France
| | - Mario Varcamonti
- Department of Biology, University of Naples "Federico II", Via Cynthia, 80143 Naples, Italy
| | - Diego Tesauro
- Department of Pharmacy and Interuniversity Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II", Via Montesano, 49, 80131 Naples, Italy
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3
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Zhou W, Jia Y, Liu Y, Chen Y, Zhao P. Tumor Microenvironment-Based Stimuli-Responsive Nanoparticles for Controlled Release of Drugs in Cancer Therapy. Pharmaceutics 2022; 14:2346. [PMID: 36365164 PMCID: PMC9694300 DOI: 10.3390/pharmaceutics14112346] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/22/2022] [Accepted: 10/28/2022] [Indexed: 07/22/2023] Open
Abstract
With the development of nanomedicine technology, stimuli-responsive nanocarriers play an increasingly important role in antitumor therapy. Compared with the normal physiological environment, the tumor microenvironment (TME) possesses several unique properties, including acidity, high glutathione (GSH) concentration, hypoxia, over-expressed enzymes and excessive reactive oxygen species (ROS), which are closely related to the occurrence and development of tumors. However, on the other hand, these properties could also be harnessed for smart drug delivery systems to release drugs specifically in tumor tissues. Stimuli-responsive nanoparticles (srNPs) can maintain stability at physiological conditions, while they could be triggered rapidly to release drugs by specific stimuli to prolong blood circulation and enhance cancer cellular uptake, thus achieving excellent therapeutic performance and improved biosafety. This review focuses on the design of srNPs based on several stimuli in the TME for the delivery of antitumor drugs. In addition, the challenges and prospects for the development of srNPs are discussed, which can possibly inspire researchers to develop srNPs for clinical applications in the future.
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Affiliation(s)
- Weixin Zhou
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yujie Jia
- Institute of Biomedical Engineering and Technology, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200065, China
| | - Yani Liu
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yan Chen
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Pengxuan Zhao
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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4
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Acetalated dextran microparticles for the smart delivery of pyraclostrobin to control Sclerotinia diseases. Carbohydr Polym 2022; 291:119576. [DOI: 10.1016/j.carbpol.2022.119576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/06/2022] [Accepted: 05/03/2022] [Indexed: 11/23/2022]
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Prasher P, Sharma M, Singh SK, Haghi M, MacLoughlin R, Chellappan DK, Gupta G, Paudel KR, Hansbro PM, George Oliver BG, Wich PR, Dua K. Advances and applications of dextran-based nanomaterials targeting inflammatory respiratory diseases. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Formulation attributes, acid tunable degradability and cellular interaction of acetalated maltodextrin nanoparticles. Carbohydr Polym 2022; 288:119378. [DOI: 10.1016/j.carbpol.2022.119378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/12/2022] [Accepted: 03/16/2022] [Indexed: 01/06/2023]
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7
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Valente SA, Silva LM, Lopes GR, Sarmento B, Coimbra MA, Passos CP. Polysaccharide-based formulations as potential carriers for pulmonary delivery - A review of their properties and fates. Carbohydr Polym 2022; 277:118784. [PMID: 34893219 DOI: 10.1016/j.carbpol.2021.118784] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/28/2021] [Accepted: 10/14/2021] [Indexed: 12/31/2022]
Abstract
Polysaccharides can be elite carriers for therapeutic molecules due to their versatility and low probability to trigger toxicity and immunogenic responses. Local and systemic therapies can be achieved through particle pulmonary delivery, a promising non-invasive alternative. Successful pulmonary delivery requires particles with appropriate flowability to reach alveoli and avoid premature clearance mechanisms. Polysaccharides can form micro-, nano-in-micro-, and large porous particles, aerogels, and hydrogels. Herein, the characteristics of polysaccharides used in drug formulations for pulmonary delivery are reviewed, providing insights into structure-function relationships. Charged polysaccharides can confer mucoadhesion, whereas the ability for specific sugar recognition may confer targeting capacity for alveolar macrophages. The method of particle preparation must be chosen considering the properties of the components and the delivery device to be utilized. The fate of polysaccharide-based carriers is dependent on enzyme-triggered hydrolytic and/or oxidative mechanisms, allowing their complete degradation and elimination through urine or reutilization of released monosaccharides.
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Affiliation(s)
- Sara A Valente
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Lisete M Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Guido R Lopes
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Bruno Sarmento
- INEB - Institute of Biomedical Engineering Instituto, University of Porto, 4150-180 Porto, Portugal; i3S - Institute for Research & Innovation in Health, University of Porto, 4150-180 Porto, Portugal; CESPU - Institute for Research and Advanced Training in Health Sciences and Technologies, 4585-116 Gandra, Portugal
| | - Manuel A Coimbra
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Cláudia P Passos
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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8
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Varna D, Christodoulou E, Gounari E, Apostolidou CP, Landrou G, Papi R, Koliakos G, Coutsolelos AG, Bikiaris DN, Angaridis P. Pegylated-polycaprolactone nano-sized drug delivery platforms loaded with biocompatible silver(I) complexes for anticancer therapeutics. RSC Med Chem 2022; 13:857-872. [DOI: 10.1039/d2md00046f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 05/23/2022] [Indexed: 11/21/2022] Open
Abstract
Cytotoxic potential of Ag(I) coordination compounds against cancer cells is widely recognized, but their frequently low water solubility and potential adverse interactions of Ag(I) ions in biological media require their...
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Li S, Guo J, Tian Z, Chen J, Gou G, Niu Y, Li L, Yang J. Piperine-Loaded Glycyrrhizic Acid- and PLGA-Based Nanoparticles Modified with Transferrin for Antitumor : Piperine-Loaded Glycyrrhizic Acid- and PLGA-Based Nanoparticles. AAPS PharmSciTech 2021; 22:239. [PMID: 34590204 DOI: 10.1208/s12249-021-02123-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/18/2021] [Indexed: 12/13/2022] Open
Abstract
The purpose of this study was to enhance the antitumor effect of piperine by constructing the nanoparticles modified with transferrin (Tf-PIP-NPs) and evaluating their efficacy in vitro and in vivo. The Tf-PIP-NPs were prepared by the solvent evaporation method, and their properties were characterized. The effects of Tf-PIP-NPs on cytotoxicity, cell uptake, apoptosis, and mitochondrial membrane potential were evaluated in HepG2 cells, MDA-MB-231 cells, and 4T1 cells. In a 4T1 tumor-bearing mouse model, the antitumor efficacy of Tf-PIP-NPs was assessed in terms of tumor volumes, changes in body weight, HE staining, and immunohistochemical analysis. With a mean particle size of 112.2 ± 1.27 nm, the zeta potential of (- 28.0 ± 1.6 mV) Tf-PIP-NPs were rapidly internalized by tumor cells after 1 h through the transferrin receptor (TfR)-mediated endocytosis pathway, significantly inducing cellular apoptosis and mitochondrial membrane potential loss. Although Tf-PIP-NPs had no significant difference with PIP-NPs in tumor volume inhibition due to the presence of tumor microenvironment, it could significantly upregulate the expression of related pro-apoptotic proteins and induce tumor necrosis. We used the self-assembly properties of glycyrrhizic acid (GL) and polymer-PLGA to encapsulate piperine and modified with the transferrin, which provided a promising approach to improve the antitumor efficacy for anticarcinogen.
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11
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Goetzfried SK, Koenig SMC, Gallati CM, Gust R. Internal and External Influences on Stability and Ligand Exchange Reactions in Bromido[3-ethyl-4-aryl-5-(2-methoxypyridin-5-yl)-1-propyl-1,3-dihydro-2 H-imidazol-2-ylidene]gold(I) Complexes. Inorg Chem 2021; 60:8546-8553. [PMID: 34097405 PMCID: PMC8277168 DOI: 10.1021/acs.inorgchem.1c00325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The ligand scrambling
reaction of gold(I) complexes is a phenomenon
occurring primarily in L–AuI–X (L = phosphine, N-heterocyclic carbene (NHC), and thiol; X = halide and
thiol) complexes and has been observed among others for e.g., the
bromido[3-ethyl-4-(4-methoxyphenyl)-5-(2-methoxypyridin-5-yl)-1-propyl-1,3-dihydro-2H-imidazol-2-ylidene]gold(I) complex (7a),
which underwent ligand rearrangement in aqueous solutions. In this
study, we investigated the influence of substituents on the 4-aryl
ring of the related (NHC)AuIBr complexes (1a–9a) in terms of the conversion to the [(NHC)2AuI]+ (1b–9b) and [(NHC)2AuIIIBr2]+ (1c–9c) species. Furthermore,
the influence of external factors such as solvent, temperature, concentration,
and presence of halides (Cl–, Br–, and I–) or hydroxyl ions was studied to gain
a deeper understanding of the ligand rearrangement reaction. The substituent
on the 4-aryl ring has a marginal impact on the scrambling reaction.
Out of the investigated organic solvents (dimethylformamide (DMF),
dimethyl sulfoxide (DMSO), ethanol (EtOH), methanol (MeOH), and acetonitrile
(ACN)), only ACN separates single complex molecules. In all other
solvents, relatively stable ((NHC)AuIBr)2 dimers
are present. The addition of water to ACN solutions forces the formation
of such dimeric units, starting the transformation to [(NHC)2AuI]+ and [(NHC)2AuIIIBr2]+. The rate-determining step is the release
of Br– from a T-shape intermediate because an excess
of KBr terminates this reaction. Furthermore, it is obvious that only
single molecules react with halides. The aurophilic interactions between
two (NHC)AuIBr molecules are too strong in the presence
of water and largely impeded reaction with halides. As a single molecule,
the reaction with Cl– (e.g., in a 0.9% NaCl solution)
is notable, while I– even leads to a fast and quantitative
conversion to (NHC)AuII and finally to [(NHC)2AuI]+. Internal
and external factors of the ligand scrambling reaction
in (NHC)AuIBr complexes were investigated by the means
of HPLC. The data represent the impact of substituents, temperature,
solvent, concentration and addition of halides on the conversion to
the respective [(NHC)2AuI]+ and the
oxidation to the [(NHC)2AuIIIBr2]+ complexes.
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Affiliation(s)
- Sina Katharina Goetzfried
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
| | - Sophie Marie Charlotte Koenig
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
| | - Caroline Marie Gallati
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
| | - Ronald Gust
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
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Plucinski A, Lyu Z, Schmidt BVKJ. Polysaccharide nanoparticles: from fabrication to applications. J Mater Chem B 2021; 9:7030-7062. [DOI: 10.1039/d1tb00628b] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The present review highlights the developments in polysaccharide nanoparticles with a particular focus on applications in biomedicine, cosmetics and food.
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Affiliation(s)
| | - Zan Lyu
- School of Chemistry, University of Glasgow, G12 8QQ Glasgow, UK
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Braga CB, Kido LA, Lima EN, Lamas CA, Cagnon VHA, Ornelas C, Pilli RA. Enhancing the Anticancer Activity and Selectivity of Goniothalamin Using pH-Sensitive Acetalated Dextran (Ac-Dex) Nanoparticles: A Promising Platform for Delivery of Natural Compounds. ACS Biomater Sci Eng 2020; 6:2929-2942. [PMID: 33463303 DOI: 10.1021/acsbiomaterials.0c00057] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Goniothalamin (GTN), a natural compound isolated from Goniothalamus species, has previously demonstrated cytotoxic activity against several cancer cell lines. However, similarly to many natural and synthetic anticancer compounds, GTN presents toxicity toward some healthy cells and low aqueous solubility, decreasing its bioavailability and precluding its application as an antineoplastic drug. In our efforts to improve the pharmacokinetic behavior and selectivity of GTN against cancer cells, we developed a polymeric nanosystem, in which rac-GTN was encapsulated in pH-responsive acetalated dextran (Ac-Dex) nanoparticles (NPs) with high loadings of the bioactive compound. Dynamic light scattering (DLS) analysis showed that the nanoparticles obtained presented a narrow size distribution of around 100 nm in diameter, whereas electron microscopy (EM) images showed nanoparticles with a regular spherical morphology in agreement with the size range obtained by DLS. Stability and release studies indicated that the GTN@Ac-Dex NPs presented high stability under physiological conditions (pH 7.4) and disassembled under slightly acidic conditions (pH 5.5), releasing the rac-GTN in a sustained manner. In vitro assays showed that GTN@Ac-Dex NPs significantly increased cytotoxicity and selectivity against cancer cells when compared with the empty Ac-Dex NPs and the free rac-GNT. Cellular uptake and morphology studies using MCF-7 cells demonstrated that GTN@Ac-Dex NPs are rapidly internalized into the cancer cells, causing cell death. In vivo investigation confirmed the efficient release of rac-GTN from GTN@Ac-Dex NPs, resulting in the delay of prostate cancer progression in transgenic adenocarcinoma of the mouse prostate (TRAMP) model. Furthermore, liver histopathology evaluation after treatment with GTN@Ac-Dex NPs showed no evidence of toxicity. Therefore, the in vitro and in vivo findings suggest that the Ac-Dex NPs are a promising nanosystem for the sustained delivery of rac-GTN into tumors.
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Affiliation(s)
- Carolyne B Braga
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, CEP 13083-970 Campinas, São Paulo, Brazil
| | - Larissa A Kido
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, CEP 13083-865 Campinas, São Paulo, Brazil
| | - Ellen N Lima
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, CEP 13083-865 Campinas, São Paulo, Brazil
| | - Celina A Lamas
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, CEP 13083-865 Campinas, São Paulo, Brazil
| | - Valéria H A Cagnon
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, CEP 13083-865 Campinas, São Paulo, Brazil
| | - Catia Ornelas
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, CEP 13083-970 Campinas, São Paulo, Brazil
| | - Ronaldo A Pilli
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, CEP 13083-970 Campinas, São Paulo, Brazil
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Mottais A, Berchel M, Le Gall T, Sibiril Y, d'Arbonneau F, Laurent V, Jaffrès PA, Montier T. Antibacterial and transfection activities of nebulized formulations incorporating long n-alkyl chain silver N-heterocyclic carbene complexes. Int J Pharm 2019; 567:118500. [DOI: 10.1016/j.ijpharm.2019.118500] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/05/2019] [Accepted: 07/05/2019] [Indexed: 01/16/2023]
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Butzbach K, Konhäuser M, Fach M, Bamberger DN, Breitenbach B, Epe B, Wich PR. Receptor-mediated Uptake of Folic Acid-functionalized Dextran Nanoparticles for Applications in Photodynamic Therapy. Polymers (Basel) 2019; 11:polym11050896. [PMID: 31100893 PMCID: PMC6572481 DOI: 10.3390/polym11050896] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 04/30/2019] [Accepted: 05/10/2019] [Indexed: 01/26/2023] Open
Abstract
In photodynamic therapy (PDT), photosensitizers and light are used to cause photochemically induced cell death. The selectivity and the effectiveness of the phototoxicity in cancer can be increased by a specific uptake of the photosensitizer into tumor cells. A promising target for this goal is the folic acid receptor α (FRα), which is overexpressed on the surface of many tumor cells and mediates an endocytotic uptake. Here, we describe a polysaccharide-based nanoparticle system suitable for targeted uptake and its photochemical and photobiological characterization. The photosensitizer 5, 10, 15, 20-tetraphenyl-21H, 23H-porphyrine (TPP) was encapsulated in spermine- and acetal-modified dextran (SpAcDex) nanoparticles and conjugated with folic acid (FA) on the surface [SpAcDex(TPP)-FA]. The particles are successfully taken up by human HeLa-KB cells, and a light-induced cytotoxicity is observable. An excess of free folate as the competitor for the FRα-mediated uptake inhibits the phototoxicity. In conclusion, folate-modified SpAcDex particles are a promising drug delivery system for a tumor cell targeted photodynamic therapy.
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Affiliation(s)
- Kathrin Butzbach
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudingerweg 5, 55128 Mainz, Germany
| | - Matthias Konhäuser
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudingerweg 5, 55128 Mainz, Germany
| | - Matthias Fach
- Department of Health Technology, Technical University of Denmark, Produktionstorvet Building 423, 2800 Lyngby, Denmark
| | - Denise N Bamberger
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudingerweg 5, 55128 Mainz, Germany
| | - Benjamin Breitenbach
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudingerweg 5, 55128 Mainz, Germany
| | - Bernd Epe
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudingerweg 5, 55128 Mainz, Germany
| | - Peter R Wich
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudingerweg 5, 55128 Mainz, Germany.
- School of Chemical Engineering, University of New South Wales, Science and Engineering Building, Sydney, NSW 2052, Australia.
- Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW 2052, Australia.
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Braga CB, Perli G, Becher TB, Ornelas C. Biodegradable and pH-Responsive Acetalated Dextran (Ac-Dex) Nanoparticles for NIR Imaging and Controlled Delivery of a Platinum-Based Prodrug into Cancer Cells. Mol Pharm 2019; 16:2083-2094. [PMID: 30901218 DOI: 10.1021/acs.molpharmaceut.9b00058] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nanoparticles (NPs) based on the biodegradable acetalated dextran polymer (Ac-Dex) were used for near-infrared (NIR) imaging and controlled delivery of a PtIV prodrug into cancer cells. The Ac-Dex NPs loaded with the hydrophobic PtIV prodrug 3 (PtIV/Ac-Dex NPs) and with the novel hydrophobic NIR-fluorescent dye 9 (NIR-dye 9/Ac-Dex NPs), as well as Ac-Dex NPs coloaded with both compounds (coloaded Ac-Dex NPs), were assembled using a single oil-in-water nanoemulsion method. Dynamic light scattering measurements and scanning electron microscopy images showed that the resulting Ac-Dex NPs are spherical with an average diameter of 100 nm, which is suitable for accumulation in tumors via the enhanced permeation and retention effect. The new nanosystems exhibited high drug-loading capability, high encapsulation efficiency, high stability in physiological conditions, and pH responsiveness. Drug-release studies clearly showed that the PtIV prodrug 3 release from Ac-Dex NPs was negligible at pH 7.4, whereas at pH 5.5, this compound was completely released with a controlled rate. Confocal laser scanning microscopy unambiguously showed that the NIR-dye 9/Ac-Dex NPs were efficiently taken up by MCF-7 cells, and cytotoxicity assays against several cell lines showed no significant toxicity of blank Ac-Dex NPs up to 1 mg mL-1. The IC50 values obtained for the PtIV prodrug encapsulated in Ac-Dex NPs were much lower when compared with the IC50 values obtained for the free PtIV complex and cisplatin in all cell lines tested. Overall, our results demonstrate, for the first time, that Ac-Dex NPs constitute a promising drug delivery platform for cancer therapy.
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Affiliation(s)
- Carolyne B Braga
- Institute of Chemistry , University of Campinas-UNICAMP , 13083-970 Campinas , SP , Brazil
| | - Gabriel Perli
- Institute of Chemistry , University of Campinas-UNICAMP , 13083-970 Campinas , SP , Brazil
| | - Tiago B Becher
- Institute of Chemistry , University of Campinas-UNICAMP , 13083-970 Campinas , SP , Brazil
| | - Catia Ornelas
- Institute of Chemistry , University of Campinas-UNICAMP , 13083-970 Campinas , SP , Brazil
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Deirram N, Zhang C, Kermaniyan SS, Johnston APR, Such GK. pH‐Responsive Polymer Nanoparticles for Drug Delivery. Macromol Rapid Commun 2019; 40:e1800917. [DOI: 10.1002/marc.201800917] [Citation(s) in RCA: 183] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 01/31/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Nayeleh Deirram
- School of Chemistry The University of Melbourne Parkville Victoria 3010 Australia
| | - Changhe Zhang
- School of Chemistry The University of Melbourne Parkville Victoria 3010 Australia
| | - Sarah S. Kermaniyan
- School of Chemistry The University of Melbourne Parkville Victoria 3010 Australia
| | - Angus P. R. Johnston
- Monash Institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
| | - Georgina K. Such
- School of Chemistry The University of Melbourne Parkville Victoria 3010 Australia
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Zhang J, Shan C, Zhang T, Song J, Liu T, Lan Y. Computational advances aiding mechanistic understanding of silver-catalyzed carbene/nitrene/silylene transfer reactions. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.12.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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19
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Paßlick D, Piradashvili K, Bamberger D, Li M, Jiang S, Strand D, R. Wich P, Landfester K, Bros M, Grabbe S, Mailänder V. Delivering all in one: Antigen-nanocapsule loaded with dual adjuvant yields superadditive effects by DC-directed T cell stimulation. J Control Release 2018; 289:23-34. [DOI: 10.1016/j.jconrel.2018.09.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 08/13/2018] [Accepted: 09/11/2018] [Indexed: 12/14/2022]
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Stubelius A, Sheng W, Lee S, Olejniczak J, Guma M, Almutairi A. Disease-Triggered Drug Release Effectively Prevents Acute Inflammatory Flare-Ups, Achieving Reduced Dosing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800703. [PMID: 30009516 PMCID: PMC6165597 DOI: 10.1002/smll.201800703] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/01/2018] [Indexed: 06/08/2023]
Abstract
For conditions with inflammatory flare-ups, fast drug-release from a depot is crucial to reduce cell infiltration and prevent long-term tissue destruction. While this concept has been explored for chronic diseases, preventing acute inflammatory flares has not been explored. To address this issue, a preventative inflammation-sensitive system is developed and applied to acute gout, a condition where millions of inflammatory cells are recruited rapidly, causing excruciating and debilitating pain. Rapid drug release is first demonstrated from a pH-responsive acetalated dextran particle loaded with dexamethasone (AcDex-DXM), reducing proinflammatory cytokines in vitro as efficiently as free drug. Then, using the air pouch model of gout, mice are pretreated 24 h before inducing inflammation. AcDex-DXM reduces overall cell infiltration with decreased neutrophils, increases monocytes, and diminishes cytokines and chemokines. In a more extended prophylaxis model, murine joints are pretreated eight days before initiating inflammation. After quantifying cell infiltration, only AcDex-DXM reduces the overall joint inflammation, where neither free drug nor a conventional drug-depot achieves adequate anti-inflammatory effects. Here, the superior efficacy of disease-triggered drug-delivery to prevent acute inflammation is demonstrated over free drug and slow-release depots. This approach and results promise exciting treatment opportunities for multiple inflammatory conditions suffering from acute flares.
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Affiliation(s)
- Alexandra Stubelius
- Center of Excellence in Nanomedicine, Skaggs School of Pharmacy and Pharmaceutical Sciences, Departments of NanoEngineering and Materials Science and Engineering, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Wangzhong Sheng
- Center of Excellence in Nanomedicine, Skaggs School of Pharmacy and Pharmaceutical Sciences, Departments of NanoEngineering and Materials Science and Engineering, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Sangeun Lee
- Center of Excellence in Nanomedicine, Skaggs School of Pharmacy and Pharmaceutical Sciences, Departments of NanoEngineering and Materials Science and Engineering, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Jason Olejniczak
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Monica Guma
- School of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Adah Almutairi
- Center of Excellence in Nanomedicine, Skaggs School of Pharmacy and Pharmaceutical Sciences, Departments of NanoEngineering and Materials Science and Engineering, University of California, San Diego, La Jolla, CA, 92093, USA
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21
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Becher TB, Mendonça MCP, de Farias MA, Portugal RV, de Jesus MB, Ornelas C. Soft Nanohydrogels Based on Laponite Nanodiscs: A Versatile Drug Delivery Platform for Theranostics and Drug Cocktails. ACS APPLIED MATERIALS & INTERFACES 2018; 10:21891-21900. [PMID: 29889487 DOI: 10.1021/acsami.8b06149] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A new nanohydrogel drug delivery platform based on Laponite nanodiscs, polyacrylate, and sodium phosphate salts is described. The hybrid nanohydrogel is tailored to obtain soft and flexible nanohydrogels with G' around 3 kPa, which has been proposed as the ideal stiffness for drug delivery applications. In vitro studies demonstrate that the new nanohydrogels are biocompatible, biodegradable, nonswellable, pH-responsive, and noncytotoxic and are able to deliver antineoplastic drugs into cancer cells. The IC50 of nanohydrogels containing cisplatin, 4-fluorouracil, and cyclophosphamide is significantly lower than the IC50 of the free drugs. In vivo experiments suggest that the new nanomaterials are biocompatible and do not accumulate in crucial organs. The simple formulation procedure enables encapsulation of virtually any water-soluble molecule, without the need for chemical modification of the guests. These nanohydrogels are a versatile platform that enables the simultaneous encapsulation of several cancer drugs, yielding an efficient drug cocktail delivery system, which for instance presents a positive synergistic effect against MCF-7 cells.
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Affiliation(s)
| | | | - Marcelo A de Farias
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , 13083-970 Campinas , Sao Paulo , Brazil
| | - Rodrigo V Portugal
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , 13083-970 Campinas , Sao Paulo , Brazil
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22
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Colloid particle formulations for antimicrobial applications. Adv Colloid Interface Sci 2017; 249:134-148. [PMID: 28528626 DOI: 10.1016/j.cis.2017.05.012] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 05/10/2017] [Accepted: 05/10/2017] [Indexed: 11/23/2022]
Abstract
Colloidal particles are being extensively studied in various antimicrobial applications due to their small size to volume ratio and ability to exhibit a wide spectrum of antibacterial, antifungal, antialgal and antiviral action. The present review focuses on various nanoparticles (NPs) of inorganic, organic and hybrid materials, and discusses some of the methods for their preparation as well as mechanisms of their antimicrobial action. We consider the antimicrobial applications of metal oxide nanoparticles (ZnO, MgO, CuO, Cu2O, Al2O3, TiO2, CeO2 and Y2O3), metal nanoparticles (NPs), such as copper, silver and gold, metal hydroxide NPs such as Mg(OH)2 as well as hybrid NPs made from biodegradable materials, such as chitosan, lignin and dextran, loaded with other antimicrobial agents. Recent developments for targeted delivery of antimicrobials by using colloid antibodies for microbial cell shape and surface recognition are also discussed. We also consider recent advances in the functionalization of nanoparticles and their potential antimicrobial applications as a viable alternative of conventional antibiotics and antiseptic agents which can help to tackle antimicrobial resistance. The review also covers the recently developed environmentally benign NPs (EbNPs) as a "safer-by-design" green chemistry solution of the post use fate of antimicrobial nanomaterials.
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23
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Breitenbach BB, Schmid I, Wich PR. Amphiphilic Polysaccharide Block Copolymers for pH-Responsive Micellar Nanoparticles. Biomacromolecules 2017; 18:2839-2848. [DOI: 10.1021/acs.biomac.7b00771] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Benjamin B. Breitenbach
- Institut für Pharmazie
und Biochemie, Johannes Gutenberg-Universität Mainz, Staudingerweg
5, 55128 Mainz, Germany
| | - Ira Schmid
- Institut für Pharmazie
und Biochemie, Johannes Gutenberg-Universität Mainz, Staudingerweg
5, 55128 Mainz, Germany
| | - Peter R. Wich
- Institut für Pharmazie
und Biochemie, Johannes Gutenberg-Universität Mainz, Staudingerweg
5, 55128 Mainz, Germany
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24
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DeBord MA, Southerland MR, Wagers PO, Tiemann KM, Robishaw NK, Whiddon KT, Konopka MC, Tessier CA, Shriver LP, Paruchuri S, Hunstad DA, Panzner MJ, Youngs WJ. Synthesis, characterization, in vitro SAR and in vivo evaluation of N,N'bisnaphthylmethyl 2-alkyl substituted imidazolium salts against NSCLC. Bioorg Med Chem Lett 2017; 27:764-775. [PMID: 28126518 PMCID: PMC5575737 DOI: 10.1016/j.bmcl.2017.01.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 01/11/2017] [Accepted: 01/12/2017] [Indexed: 10/20/2022]
Abstract
Alkyl- and N,N'-bisnaphthyl-substituted imidazolium salts were tested in vitro for their anti-cancer activity against four non-small cell lung cancer cell lines (NCI-H460, NCI-H1975, HCC827, A549). All compounds had potent anticancer activity with 2 having IC50 values in the nanomolar range for three of the four cell lines, a 17-fold increase in activity against NCI-H1975 cells when compared to cisplatin. Compounds 1-4 also showed high anti-cancer activity against nine NSCLC cell lines in the NCI-60 human tumor cell line screen. In vitro studies performed using the Annexin V and JC-1 assays suggested that NCI-H460 cells treated with 2 undergo an apoptotic cell death pathway and that mitochondria could be the cellular target of 2 with the mechanism of action possibly related to a disruption of the mitochondrial membrane potential. The water solubilities of 1-4 was over 4.4mg/mL using 2-hydroxypropyl-β-cyclodextrin as a chemical excipient, thereby providing sufficient solubility for systemic administration.
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Affiliation(s)
- Michael A. DeBord
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
| | - Marie R. Southerland
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
| | - Patrick O. Wagers
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
| | - Kristin M. Tiemann
- Departments of Pediatrics and Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri 63110, United States
| | - Nikki K. Robishaw
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
| | - Kyle T. Whiddon
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
| | - Michael C. Konopka
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
| | - Claire A. Tessier
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
| | - Leah P. Shriver
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
- Department of Biology, University of Akron, Akron, Ohio 44325, United States
| | - Sailaja Paruchuri
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
| | - David A. Hunstad
- Departments of Pediatrics and Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri 63110, United States
| | - Matthew J. Panzner
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
| | - Wiley J. Youngs
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States, USA. Tel: 330-972-5362, Fax: 330-972-6085
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25
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DeBord MA, Wagers PO, Crabtree SR, Tessier CA, Panzner MJ, Youngs WJ. Synthesis, characterization, and in vitro SAR evaluation of N,N'-bis(arylmethyl)-C 2-alkyl substituted imidazolium salts. Bioorg Med Chem Lett 2017; 27:196-202. [PMID: 27939175 PMCID: PMC5204360 DOI: 10.1016/j.bmcl.2016.11.075] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 11/23/2016] [Accepted: 11/24/2016] [Indexed: 10/20/2022]
Abstract
A series of C2-alkyl substituted N,N'-bis(arylmethyl)imidazolium salts were synthesized, characterized, and tested for their in vitro anti-cancer activity against multiple non-small cell lung cancer cell lines by our group and the National Cancer Institute's-60 human tumor cell line screen to establish a structure-activity relationship. Compounds are related to previously published N,N'-bis(arylmethyl)imidazolium salts but utilize the historical quinoline motif and anion effects to increase the aqueous solubility. Multiple derivatives displayed high anti-cancer activity with IC50 values in the nanomolar to low micromolar range against a panel of non-small cell lung cancer cell lines. Several of these derivatives have high aqueous solubilities with potent anti-proliferative properties and are ideal candidates for future in vivo xenograft studies and have high potential to progress into clinic use.
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Affiliation(s)
- Michael A DeBord
- Department of Chemistry, University of Akron, Akron, OH 44325, United States
| | - Patrick O Wagers
- Department of Chemistry, University of Akron, Akron, OH 44325, United States
| | - Steven R Crabtree
- Department of Chemistry, University of Akron, Akron, OH 44325, United States
| | - Claire A Tessier
- Department of Chemistry, University of Akron, Akron, OH 44325, United States
| | - Matthew J Panzner
- Department of Chemistry, University of Akron, Akron, OH 44325, United States.
| | - Wiley J Youngs
- Department of Chemistry, University of Akron, Akron, OH 44325, United States.
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26
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Bachelder EM, Pino EN, Ainslie KM. Acetalated Dextran: A Tunable and Acid-Labile Biopolymer with Facile Synthesis and a Range of Applications. Chem Rev 2016; 117:1915-1926. [PMID: 28032507 DOI: 10.1021/acs.chemrev.6b00532] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Acetalated dextran (Ac-DEX) is a tunable acid-labile biopolymer with facile synthesis, aptly designed for the formulation of microparticles for vaccines and immune modulation. Tunability of degradation is achieved based on the kinetics of reaction and the molecular weight of the parent dextran polymer. This tunability translated to differential rates of activation of CD8+ T cells in an in vitro ovalbumin model and illustrated that acid-labile polymer can activate CD8+ T cells at an increased rate compared to acid-insensitive polymers. In addition, Ac-DEX has been used to encapsulate small molecules, deliver nucleotides, transport inorganic molecules, formulate immune modulating therapies and vaccines, and trigger pH responsive constructs for therapy. Here we highlight the properties and results of Ac-DEX nano-/microparticles as well as the use of the polymer in other constructs and chemistries.
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Affiliation(s)
- Eric M Bachelder
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina , Chapel Hill, North Carolina 27599, United States
| | - Erica N Pino
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina , Chapel Hill, North Carolina 27599, United States
| | - Kristy M Ainslie
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina , Chapel Hill, North Carolina 27599, United States
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27
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Lim YH, Tiemann KM, Hunstad DA, Elsabahy M, Wooley KL. Polymeric nanoparticles in development for treatment of pulmonary infectious diseases. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2016; 8:842-871. [PMID: 27016134 PMCID: PMC5035710 DOI: 10.1002/wnan.1401] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 02/08/2016] [Accepted: 02/15/2016] [Indexed: 12/17/2022]
Abstract
Serious lung infections, such as pneumonia, tuberculosis, and chronic obstructive cystic fibrosis-related bacterial diseases, are increasingly difficult to treat and can be life-threatening. Over the last decades, an array of therapeutics and/or diagnostics have been exploited for management of pulmonary infections, but the advent of drug-resistant bacteria and the adverse conditions experienced upon reaching the lung environment urge the development of more effective delivery vehicles. Nanotechnology is revolutionizing the approach to circumventing these barriers, enabling better management of pulmonary infectious diseases. In particular, polymeric nanoparticle-based therapeutics have emerged as promising candidates, allowing for programmed design of multi-functional nanodevices and, subsequently, improved pharmacokinetics and therapeutic efficiency, as compared to conventional routes of delivery. Direct delivery to the lungs of such nanoparticles, loaded with appropriate antimicrobials and equipped with 'smart' features to overcome various mucosal and cellular barriers, is a promising approach to localize and concentrate therapeutics at the site of infection while minimizing systemic exposure to the therapeutic agents. The present review focuses on recent progress (2005-2015) important for the rational design of nanostructures, particularly polymeric nanoparticles, for the treatment of pulmonary infections with highlights on the influences of size, shape, composition, and surface characteristics of antimicrobial-bearing polymeric nanoparticles on their biodistribution, therapeutic efficacy, and toxicity. WIREs Nanomed Nanobiotechnol 2016, 8:842-871. doi: 10.1002/wnan.1401 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Young H Lim
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, TX, USA
| | - Kristin M Tiemann
- Department of Pediatrics, Washington University of School of Medicine, St. Louis, MO, USA
| | - David A Hunstad
- Department of Pediatrics, Washington University of School of Medicine, St. Louis, MO, USA
- Department of Molecular Microbiology, Washington University of School of Medicine, St. Louis, MO, USA
| | - Mahmoud Elsabahy
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, TX, USA.
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut, Egypt.
- Misr University for Science and Technology, 6th of October City, Egypt.
| | - Karen L Wooley
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, TX, USA.
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28
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Foerster F, Bamberger D, Schupp J, Weilbächer M, Kaps L, Strobl S, Radi L, Diken M, Strand D, Tuettenberg A, Wich PR, Schuppan D. Dextran-based therapeutic nanoparticles for hepatic drug delivery. Nanomedicine (Lond) 2016; 11:2663-2677. [PMID: 27628057 DOI: 10.2217/nnm-2016-0156] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
AIM Evaluation of dextran-based nanoparticles (DNP) as a drug delivery system to target myeloid cells of the liver. MATERIALS & METHODS DNP were synthesized and optionally PEGylated. Their toxicity and cellular uptake were studied in vitro. Empty and siRNA-carrying DNP were tested in vivo with regard to biodistribution and cellular uptake. RESULTS In vitro, DNP were taken up by cells of the myeloid lineage without compromising their viability. In vivo, empty and siRNA-carrying DNP distributed to the liver where a single treatment addressed approximately 70% of macrophages and dendritic cells. Serum parameters indicated no in vivo toxicity. CONCLUSION DNP are multifunctional liver-specific drug carriers which lack toxic side effects and may be utilized in clinical applications targeting liver macrophages.
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Affiliation(s)
- Friedrich Foerster
- Institute of Translational Immunology & Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Department of Medicine I, University Medical Center, Mainz, Germany
| | - Denise Bamberger
- Institute of Pharmacy & Biochemistry, Johannes Gutenberg-University Mainz, Staudingerweg 5, Mainz, Germany
| | - Jonathan Schupp
- Department of Dermatology, University Medical Center, Mainz, Germany
| | - Martin Weilbächer
- Department of Dermatology, University Medical Center, Mainz, Germany
| | - Leonard Kaps
- Institute of Translational Immunology & Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Stephanie Strobl
- Institute of Translational Immunology & Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Lydia Radi
- Institute of Pharmacy & Biochemistry, Johannes Gutenberg-University Mainz, Staudingerweg 5, Mainz, Germany
| | - Mustafa Diken
- TRON - Translational Oncology at the University Medical Center of Johannes Gutenberg University Mainz gGmbH, Freiligrathstraße 12, 55131 Mainz, Germany
| | - Dennis Strand
- Department of Medicine I, University Medical Center, Mainz, Germany
| | | | - Peter R Wich
- Institute of Pharmacy & Biochemistry, Johannes Gutenberg-University Mainz, Staudingerweg 5, Mainz, Germany
| | - Detlef Schuppan
- Institute of Translational Immunology & Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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29
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In vitro and in vivo uptake studies of PAMAM G4.5 dendrimers in breast cancer. J Nanobiotechnology 2016; 14:45. [PMID: 27297021 PMCID: PMC4906583 DOI: 10.1186/s12951-016-0197-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 05/23/2016] [Indexed: 11/25/2022] Open
Abstract
Background Breast cancer is the second leading cause of cancer death worldwide. Nanotechnology approaches can overcome the side effects of chemotherapy as well as improve the efficacy of drugs. Dendrimers are nanometric size polymers which are suitable as drug delivery systems. To the best of our knowledge, studies on the application of PAMAM G4.5 (polyamidoamine half generation 4) dendrimers as potential drug delivery systems in breast cancer have not been reported. In this work we developed a PAMAM G4.5 dendrimer containing FITC (fluorescein isothiocyanate) dye to study their uptake by murine breast cancer cells and BALB/c mice breast tumors. Results We performed a reaction between FITC and PAMAM G4.5 dendrimers which were previously derivatized with piperazine (linker molecule), characterized them by 1H NMR (proton nuclear magnetic resonance) spectroscopy and MALDI-TOF (matrix-assisted laser desorption/ionization- time-of-flight) mass spectrometry. The experimental data indicated that 2 FITC molecules could be bound covalently at the PAMAM G4.5 dendrimer surface, with 17 FITC molecules probably occluded in PAMAM dendrimers cavity. PAMAM-FITC dendrimer (PAMAM G4.5-piperazinyl-FITC dendrimer) size distribution was evaluated by DLS (dynamic light scattering) and TEM (transmission electron microscopy). The nanoparticle hydrodynamic size was 96.3 ± 1.4 nm with a PdI (polydispersion index) of 0.0296 ± 0.0171, and the size distribution measured by TEM was 44.2 ± 9.2 nm. PAMAM-FITC dendrimers were neither cytotoxic in 4T1 cells nor hemolytic up to 24 h of incubation. In addition, they were uptaken in vitro by 4T1 cells and in vivo by BALB/c mice breast tumors. PAMAM G4.5-piperazinyl-FITC dendrimer intracellular distribution was observed through histologic analysis of the tumor by laser confocal microscopy. Conclusion These results indicate that PAMAM G4.5 dendrimers enter tumor tissue cells, being good candidates to be used as antitumor drug delivery systems for breast cancer treatment and diagnosis.
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30
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Terms of endearment: Bacteria meet graphene nanosurfaces. Biomaterials 2016; 89:38-55. [DOI: 10.1016/j.biomaterials.2016.02.030] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 02/11/2016] [Accepted: 02/19/2016] [Indexed: 12/12/2022]
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31
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An update on polysaccharide-based nanomaterials for antimicrobial applications. Appl Microbiol Biotechnol 2016; 100:2603-15. [PMID: 26830099 DOI: 10.1007/s00253-016-7315-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/09/2016] [Accepted: 01/12/2016] [Indexed: 01/01/2023]
Abstract
Scientific community has made a lot of efforts to combat the infectious diseases using antimicrobial agents, but these are associated with problems of development of multi-drug resistance and their adverse side effects. To tackle these challenges, nanocarrier-based drug delivery system using polysaccharides has received enormous attention in the past few years. These antimicrobial agents can become more efficacious when adsorbed, entrapped, or linked to polysaccharides. In addition, these nanocarrier-based systems provide an increase in the surface area of the drug and are able to achieve the targeted drug delivery as well as used for the synthesis of packaging materials with improved mechanical strength, barrier, and antimicrobial properties. This review focuses on potential therapeutic applications of nanocarrier-based drug delivery systems using polysaccharides for antimicrobial applications.
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32
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Ornelas C. Brief Timelapse on Dendrimer Chemistry: Advances, Limitations, and Expectations. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500393] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Catia Ornelas
- Institute of Chemistry; University of Campinas - Unicamp; Campinas SP 13083-970 Brazil
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33
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Davidović S, Miljković M, Lazić V, Jović D, Jokić B, Dimitrijević S, Radetić M. Impregnation of cotton fabric with silver nanoparticles synthesized by dextran isolated from bacterial species Leuconostoc mesenteroides T3. Carbohydr Polym 2015; 131:331-6. [DOI: 10.1016/j.carbpol.2015.06.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 06/05/2015] [Accepted: 06/06/2015] [Indexed: 10/23/2022]
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34
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Wright BD, Deblock MC, Wagers PO, Duah E, Robishaw NK, Shelton KL, Southerland MR, DeBord MA, Kersten KM, McDonald LJ, Stiel JA, Panzner MJ, Tessier CA, Paruchuri S, Youngs WJ. Anti-tumor activity of lipophilic imidazolium salts on select NSCLC cell lines. Med Chem Res 2015; 24:2838-2861. [PMID: 26446298 PMCID: PMC4593509 DOI: 10.1007/s00044-015-1330-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 01/19/2015] [Indexed: 10/23/2022]
Abstract
The anti-tumor activity of imidazolium salts is highly dependent upon the substituents on the nitrogen atoms of the imidazolium cation. We have synthesized and characterized a series of naphthalene-substituted imidazolium salts and tested them against a variety of non-smallcell lung cancer cell lines. Several of these complexes displayed anticancer activity comparable to cisplatin. These compounds induced apoptosis in the NCI-H460 cell line as determined by Annexin V staining, caspase-3, and PARP cleavage. These results strongly suggest that this class of compounds can serve as potent chemotherapeutic agents.
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Affiliation(s)
- Brian D. Wright
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Michael C. Deblock
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Patrick O. Wagers
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Ernest Duah
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Nikki K. Robishaw
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Kerri L. Shelton
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | | | - Michael A. DeBord
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Kortney M. Kersten
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Lucas J. McDonald
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Jason A. Stiel
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Matthew J. Panzner
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Claire A. Tessier
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Sailaja Paruchuri
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
| | - Wiley J. Youngs
- Department of Chemistry, The University of Akron, Akron, OH 44325-3601, USA
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Zhang F, Smolen JA, Zhang S, Li R, Shah PN, Cho S, Wang H, Raymond JE, Cannon CL, Wooley KL. Degradable polyphosphoester-based silver-loaded nanoparticles as therapeutics for bacterial lung infections. NANOSCALE 2015; 7:2265-2270. [PMID: 25573163 DOI: 10.1039/c4nr07103d] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this study, a new type of degradable polyphosphoester-based polymeric nanoparticle, capable of carrying silver cations via interactions with alkyne groups, has been developed as a potentially effective and safe treatment for lung infections. It was found that up to 15% (w/w) silver loading into the nanoparticles could be achieved, consuming most of the pendant alkyne groups along the backbone, as revealed by Raman spectroscopy. The well-defined Ag-loaded nanoparticles released silver in a controlled and sustained manner over 5 days, and displayed enhanced in vitro antibacterial activities against cystic fibrosis-associated pathogens and decreased cytotoxicity to human bronchial epithelial cells, in comparison to silver acetate.
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Affiliation(s)
- Fuwu Zhang
- Department of Chemistry, Department of Chemical Engineering, and Department of Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, USA.
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Klinger-Strobel M, Lautenschläger C, Fischer D, Mainz JG, Bruns T, Tuchscherr L, Pletz MW, Makarewicz O. Aspects of pulmonary drug delivery strategies for infections in cystic fibrosis--where do we stand? Expert Opin Drug Deliv 2015; 12:1351-74. [PMID: 25642831 DOI: 10.1517/17425247.2015.1007949] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Cystic fibrosis (CF) is the most common life-shortening hereditary disease among Caucasians and is associated with severe pulmonary damage because of decreased mucociliary clearance and subsequent chronic bacterial infections. Approximately 90% of CF patients die from lung destruction, promoted by pathogens such as Pseudomonas aeruginosa. Consequently, antibiotic treatment is a cornerstone of CF therapy, preventing chronic infection and reducing bacterial load, exacerbation rates and loss of pulmonary function. Many drugs are administered by inhalation to achieve high pulmonary concentration and to lower systemic side effects. However, pulmonary deposition of inhaled drugs is substantially limited by bronchial obstruction with viscous mucus and restrained by intrapulmonary bacterial biofilms. AREAS COVERED This review describes challenges in the therapy of CF-associated infections by inhaled antibiotics and summarizes the current state of microtechnology and nanotechnology-based pulmonary antibiotic delivery strategies. Recent and ongoing clinical trials as well as experimental approaches for microparticle/nanoparticle-based antibiotics are presented and their advantages and disadvantages are discussed. EXPERT OPINION Rapidly increasing antimicrobial resistance accompanied by the lack of novel antibiotics force targeted and more efficient use of the available drugs. Encapsulation of antimicrobials in nanoparticles or microparticles of organic polymers may have great potential for use in CF therapy.
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Affiliation(s)
- Mareike Klinger-Strobel
- Jena University Hospital, Center for Infectious Diseases and Infection Control , Erlanger Allee 101, 07740 Jena , Germany +49 3641 9324227 ;
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Binauld S, Stenzel MH. Acid-degradable polymers for drug delivery: a decade of innovation. Chem Commun (Camb) 2013; 49:2082-102. [DOI: 10.1039/c2cc36589h] [Citation(s) in RCA: 312] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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