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Machado FR, Bortolotto VC, Araujo SM, Dahleh MMM, Fernandes EJ, Musachio EAS, Funguetto-Ribeiro AC, Haas SE, Guerra GP, Prigol M, Boeira SP. Toxicological analysis of chronic exposure to polymeric nanocapsules with different coatings in Drosophila melanogaster. Comp Biochem Physiol C Toxicol Pharmacol 2024; 283:109939. [PMID: 38723702 DOI: 10.1016/j.cbpc.2024.109939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/23/2024] [Accepted: 05/06/2024] [Indexed: 06/01/2024]
Abstract
Nanotechnology involves the utilization of nanomaterials, including polymeric nanocapsules (NCs) that are drug carriers. For modify drug release and stability, nanoformulations can feature different types of polymers as surface coatings: Polysorbate 80 (P80), Polyethylene glycol (PEG), Chitosan (CS) and Eudragit (EUD). Although nanoencapsulation aims to reduce side effects, these polymers can interact with living organisms, inducing events in the antioxidant system. Thus far, little has been described about the impacts of chronic exposure, with Drosophila melanogaster being an in vivo model for characterizing the toxicology of these polymers. This study analyzes the effects of chronic exposure to polymeric NCs with different coatings. Flies were exposed to 10, 50, 100, and 500 μL of NCP80, NCPEG, NCCS, or EUD. The survival rate, locomotor changes, oxidative stress markers, cell viability, and Nrf2 expression were evaluated. Between the coatings, NCPEG had minimal effects, as only 500 μL affected the levels of reactive species (RS) and the enzymatic activities of catalase (CAT) and glutathione S-transferase (GST) without reducing Nrf2 expression. However, NCEUD significantly impacted the total flies killed, RS, CAT, and Superoxide dismutase from 100 μL. In part, the toxicity mechanisms of these coatings can be explained by the imbalance of the antioxidant system. This research provided initial evidence on the chronic toxicology of these nanomaterials in D. melanogaster to clarify the nanosafety profile of these polymers in future nanoformulations. Further investigations are essential to characterize possible biochemical pathways involved in the toxicity of these polymeric coatings.
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Affiliation(s)
- Franciéle Romero Machado
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules - LaftamBio, Federal University of Pampa, Itaqui, RS 97650-000, Brazil
| | - Vandreza Cardoso Bortolotto
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules - LaftamBio, Federal University of Pampa, Itaqui, RS 97650-000, Brazil
| | - Stífani Machado Araujo
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules - LaftamBio, Federal University of Pampa, Itaqui, RS 97650-000, Brazil
| | - Mustafa Munir Mustafa Dahleh
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules - LaftamBio, Federal University of Pampa, Itaqui, RS 97650-000, Brazil
| | - Eliana Jardim Fernandes
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules - LaftamBio, Federal University of Pampa, Itaqui, RS 97650-000, Brazil
| | - Elize Aparecida Santos Musachio
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules - LaftamBio, Federal University of Pampa, Itaqui, RS 97650-000, Brazil
| | | | - Sandra Elisa Haas
- Pharmacology Laboratory - LABFAR, Federal University of Pampa, Uruguaiana, RS 22 97650-970, Brazil
| | - Gustavo Petri Guerra
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules - LaftamBio, Federal University of Pampa, Itaqui, RS 97650-000, Brazil
| | - Marina Prigol
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules - LaftamBio, Federal University of Pampa, Itaqui, RS 97650-000, Brazil
| | - Silvana Peterini Boeira
- Laboratory of Pharmacological and Toxicological Evaluations Applied to Bioactives Molecules - LaftamBio, Federal University of Pampa, Itaqui, RS 97650-000, Brazil.
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Solomun JI, Martin L, Mapfumo P, Moek E, Amro E, Becker F, Tuempel S, Hoeppener S, Rudolph KL, Traeger A. pH-sensitive packaging of cationic particles by an anionic block copolymer shell. J Nanobiotechnology 2022; 20:336. [PMID: 35842657 PMCID: PMC9287721 DOI: 10.1186/s12951-022-01528-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 06/28/2022] [Indexed: 03/26/2024] Open
Abstract
Cationic non-viral vectors show great potential to introduce genetic material into cells, due to their ability to transport large amounts of genetic material and their high synthetic versatility. However, designing materials that are effective without showing toxic effects or undergoing non-specific interactions when applied systemically remains a challenge. The introduction of shielding polymers such as polyethylene glycol (PEG) can enhance biocompatibility and circulation time, however, often impairs transfection efficiency. Herein, a multicomponent polymer system is introduced, based on cationic and hydrophobic particles (P(nBMA46-co-MMA47-co-DMAEMA90), (PBMD)) with high delivery performance and a pH-responsive block copolymer (poly((N-acryloylmorpholine)-b-(2-(carboxy)ethyl acrylamide)) (P(NAM72-b-CEAm74), PNC)) as shielding system, with PNAM as alternative to PEG. The pH-sensitive polymer design promotes biocompatibility and excellent stability at extracellular conditions (pH 7.4) and also allows endosomal escape and thus high transfection efficiency under acidic conditions. PNC shielded particles are below 200 nm in diameter and showed stable pDNA complexation. Further, interaction with human erythrocytes at extracellular conditions (pH 7.4) was prevented, while acidic conditions (pH 6) enabled membrane leakage. The particles demonstrate transfection in adherent (HEK293T) as well as difficult-to-transfect suspension cells (K-562), with comparable or superior efficiency compared to commercial linear poly(ethylenimine) (LPEI). Besides, the toxicity of PNC-shielded particles was significantly minimized, in particular in K-562 cells and erythrocytes. In addition, a pilot in vivo experiment on bone marrow blood cells of mice that were injected with PNC-shielded particles, revealed slightly enhanced cell transfection in comparison to naked pDNA. This study demonstrates the applicability of cationic hydrophobic polymers for transfection of adherent and suspension cells in culture as well as in vivo by co-formulation with pH-responsive shielding polymers, without substantially compromising transfection performance.
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Affiliation(s)
- Jana I Solomun
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
| | - Liam Martin
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
| | - Prosper Mapfumo
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
| | - Elisabeth Moek
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
| | - Elias Amro
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Beutenbergstraße 11, 07745, Jena, Germany
| | - Friedrich Becker
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Beutenbergstraße 11, 07745, Jena, Germany
| | - Stefan Tuempel
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Beutenbergstraße 11, 07745, Jena, Germany
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - K Lenhard Rudolph
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Beutenbergstraße 11, 07745, Jena, Germany
| | - Anja Traeger
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany. .,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany.
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3
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Sun Y, Gong L, Yin Y, Zhang L, Sun Q, Feng K, Cui Y, Zhang Q, Zhang X, Deng X, You F, Lu D, Lin Z. A Gradient pH-Sensitive Polymer-Based Antiviral Strategy via Viroporin-Induced Membrane Acidification. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2109580. [PMID: 35229371 DOI: 10.1002/adma.202109580] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/19/2022] [Indexed: 06/14/2023]
Abstract
Lipid-membrane-targeting strategies hold great promise to develop broad-spectrum antivirals. However, it remains a big challenge to identify novel membrane-based targets of viruses and virus-infected cells for development of precision targeted approaches. Here, it is discovered that viroporins, viral-encoded ion channels, which have been reported to mediate release of hydrogen ions, trigger membrane acidification of virus-infected cells. Through development of a fine-scale library of gradient pH-sensitive (GPS) polymeric nanoprobes, the cellular membrane pH transitions are measured from pH 6.8-7.1 (uninfection) to pH 6.5-6.8 (virus-infection). In response to the subtle pH alterations, the GPS polymer with sharp response at pH 6.8 (GPS6.8 ) selectively binds to virus-infected cell membranes or the viral envelope, and even completely disrupts the viral envelope. Accordingly, GPS6.8 treatment exerts suppressive effects on a wide variety of viruses including SARS-CoV-2 through triggering viral-envelope lysis rather than affecting immune pathway or viability of host cells. Murine viral-infection models exhibit that supplementation of GPS6.8 decreases viral titers and ameliorates inflammatory damage. Thus, the gradient pH-sensitive nanotechnology offers a promising strategy for accurate detection of biological pH environments and robust interference with viruses.
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Affiliation(s)
- Yizhe Sun
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Lidong Gong
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Yue Yin
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Lei Zhang
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Qiangming Sun
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, 65018, P. R. China
| | - Kai Feng
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, 65018, P. R. China
| | - Yimin Cui
- Department of Pharmacy Administration and Clinical Pharmacy, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Qiang Zhang
- Department of Pharmacy Administration and Clinical Pharmacy, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Xuehui Zhang
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Xuliang Deng
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Fuping You
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Dan Lu
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Zhiqiang Lin
- Institute of Systems Biomedicine, Department of Pathology, Department of Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
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Kuroki A, Tay J, Lee GH, Yang YY. Broad-Spectrum Antiviral Peptides and Polymers. Adv Healthc Mater 2021; 10:e2101113. [PMID: 34599850 DOI: 10.1002/adhm.202101113] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/13/2021] [Indexed: 12/18/2022]
Abstract
As the human cost of the pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is still being witnessed worldwide, the development of broad-spectrum antiviral agents against emerging and re-emerging viruses is seen as a necessity to hamper the spread of infections. Various targets during the viral life-cycle can be considered to inhibit viral infection, from viral attachment to viral fusion or replication. Macromolecules represent a particularly attractive class of therapeutics due to their multivalency and versatility. Although several antiviral macromolecules hold great promise in clinical applications, the emergence of resistance after prolonged exposure urges the need for improved solutions. In the present article, the recent advancement in the discovery of antiviral peptides and polymers with diverse structural features and antiviral mechanisms is reviewed. Future perspectives, such as, the development of virucidal peptides/polymers and their coatings against SARS-CoV-2 infection, standardization of antiviral testing protocols, and use of artificial intelligence or machine learning as a tool to accelerate the discovery of antiviral macromolecules, are discussed.
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Affiliation(s)
- Agnès Kuroki
- Yong Loo Lin School of Medicine National University of Singapore Singapore 117597 Singapore
- Institute of Bioengineering and Bioimaging 31 Biopolis Ways, The Nanos Singapore 138669 Singapore
| | - Joyce Tay
- Institute of Bioengineering and Bioimaging 31 Biopolis Ways, The Nanos Singapore 138669 Singapore
| | - Guan Huei Lee
- Yong Loo Lin School of Medicine National University of Singapore Singapore 117597 Singapore
| | - Yi Yan Yang
- Institute of Bioengineering and Bioimaging 31 Biopolis Ways, The Nanos Singapore 138669 Singapore
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Solomun JI, Cinar G, Mapfumo P, Richter F, Moek E, Hausig F, Martin L, Hoeppener S, Nischang I, Traeger A. Solely aqueous formulation of hydrophobic cationic polymers for efficient gene delivery. Int J Pharm 2021; 593:120080. [PMID: 33246046 DOI: 10.1016/j.ijpharm.2020.120080] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/05/2020] [Accepted: 11/08/2020] [Indexed: 01/01/2023]
Abstract
Cationic polymers are promising gene delivery vectors due to their ability to bind and protect genetic material. The introduction of hydrophobic moieties into cationic polymers can further improve the vector efficiency, but common formulations of hydrophobic polymers involve harsh conditions such as organic solvents, impairing intactness and loading efficiency of the genetic material. In this study, a mild, aqueous formulation method for the encapsulation of high amounts of genetic material is presented. A well-defined pH-responsive hydrophobic copolymer, i.e. poly((n-butylmethacrylate)-co-(methylmethacrylate)-co-(2-(dimethylamino) ethylmethacrylate)), (PBMD) was synthesized by reversible addition fragmentation chain transfer (RAFT) polymerization. Exploiting the pH-dependent solubility behavior of the polymer, stable pDNA loaded nanoparticles were prepared and characterized using analytical ultracentrifugation (AUC), cryo-transmission electron microscopy (cryo-TEM) and dynamic light scattering (DLS). This novel formulation approach showed high transfection efficiencies in HEK293T cells, while requiring 5- to 10-fold less pDNA compared to linear polyethylenimine (LPEI), in particular at short incubation times and in serum-containing media. Furthermore, the formulation was successfully adopted for siRNA and mRNA encapsulation and the commercially approved polymer Eudragit® E(PO/100). Overall, the aqueous formulation approach, accompanied by a tailor-made hydrophobic polymer and detailed physicochemical and application studies, led to improved gene delivery vectors with high potential for further applications.
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Affiliation(s)
- Jana I Solomun
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Gizem Cinar
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Prosper Mapfumo
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Friederike Richter
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Elisabeth Moek
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Franziska Hausig
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Liam Martin
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Stephanie Hoeppener
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ivo Nischang
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Anja Traeger
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
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6
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Evaluation of curcumin-loaded polymeric nanocapsules with different coatings in chick embryo model: influence on angiogenesis, teratogenesis and oxidative stress. Pharmacol Rep 2021; 73:563-573. [PMID: 33471303 DOI: 10.1007/s43440-021-00218-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 12/29/2020] [Accepted: 01/07/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Curcumin (CUR) is a bioactive compound with several proven pharmacological properties. However, the major limitation for therapeutic use of CUR is its low bioavailability. In this sense, an alternative to this question is the use of polymeric nanocapsules (NC) as drug/nutraceutical delivery systems. Thus, the aim of current study was to assess the effect of CUR-loaded NC and their different coatings in chick embryo model, evaluating angiogenic, teratogenic and oxidative stress parameters. METHODS The physicochemical characterization of unloaded and loaded NC with different coatings: (U-NC (P80), U-NC (PEG), U-NC (EUD), U-NC (CS), CUR-NC (P80), CUR-NC (PEG), CUR-NC (EUD) and CUR-NC (CS)) were performed. After 9 days of incubation, eggs were treated (10 mL/kg eggs; via injection) with NC (unloaded and loaded with CUR) and CUR-solution. In sequence, hen's egg test-chorioallantoic membrane (HET-CAM), angiogenic assay, external abnormalities, weight of embryos and oxidative stress markers (TBARS, NPSH, ROS and CAT) were analyzed. RESULTS CUR-NC (P80, PEG, EUD and CS) treatments caused antiangiogenic and non-teratogenic effects in chick embryo model. Still, CUR-NC (P80), CUR-NC (PEG), CUR-NC (EUD) and CUR-NC (CS) did not alter markers of oxidative stress (TBARS, NPSH, CAT) studied. Only CUR-NC (EUD) caused increase in ROS levels. CONCLUSION Wherefore, these findings of present study represent a advance in research of drug/nutraceutical delivery systems.
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Bianculli RH, Mase JD, Schulz MD. Antiviral Polymers: Past Approaches and Future Possibilities. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01273] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Rachel H. Bianculli
- Department of Chemistry, Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Jonathan D. Mase
- Department of Chemistry, Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Michael D. Schulz
- Department of Chemistry, Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
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Montero N, Alhajj MJ, Sierra M, Oñate-Garzon J, Yarce CJ, Salamanca CH. Development of Polyelectrolyte Complex Nanoparticles-PECNs Loaded with Ampicillin by Means of Polyelectrolyte Complexation and Ultra-High Pressure Homogenization (UHPH). Polymers (Basel) 2020; 12:E1168. [PMID: 32443668 PMCID: PMC7285317 DOI: 10.3390/polym12051168] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/09/2020] [Accepted: 05/14/2020] [Indexed: 12/27/2022] Open
Abstract
This study was focused on synthesizing, characterizing and evaluating the biological potential of Polyelectrolyte Complex Nanoparticles (PECNs) loaded with the antibiotic ampicillin. For this, the PECNs were produced initially by polyelectrolytic complexation (bottom-up method) and subsequently subjected to ultra-high pressure homogenization-UHPH (top-down method). The synthetic polymeric materials corresponding to the sodium salt of poly(maleic acid-alt-octadecene) (PAM-18Na) and the chloride salt of Eudragit E-100 (EuCl) were used, where the order of polyelectrolyte complexation, the polyelectrolyte ratio and the UHPH conditions on the PECNs features were evaluated. Likewise, PECNs were physicochemically characterized through particle size, polydispersity index, zeta potential, pH and encapsulation efficiency, whereas the antimicrobial effect was evaluated by means of the broth microdilution method employing ampicillin sensitive and resistant S. aureus strains. The results showed that the classical method of polyelectrolyte complexation (bottom-up) led to obtain polymeric complexes with large particle size and high polydispersity, where the 1:1 ratio between the titrant and receptor polyelectrolyte was the most critical condition. In contrast, the UHPH technique (top-down method) proved high performance to produce uniform polymeric complexes on the nanometric scale (particle size < 200 nm and PDI < 0.3). Finally, it was found there was a moderate increase in antimicrobial activity when ampicillin was loaded into the PECNs.
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Affiliation(s)
- Nicolle Montero
- Laboratorio de Diseño y Formulación de Productos Químicos y Derivados, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Naturales, Universidad ICESI, Calle 18 No. 122-135, Cali 760035, Colombia; (N.M.); (M.J.A.); (M.S.); (C.J.Y.)
| | - Maria J. Alhajj
- Laboratorio de Diseño y Formulación de Productos Químicos y Derivados, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Naturales, Universidad ICESI, Calle 18 No. 122-135, Cali 760035, Colombia; (N.M.); (M.J.A.); (M.S.); (C.J.Y.)
| | - Mariana Sierra
- Laboratorio de Diseño y Formulación de Productos Químicos y Derivados, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Naturales, Universidad ICESI, Calle 18 No. 122-135, Cali 760035, Colombia; (N.M.); (M.J.A.); (M.S.); (C.J.Y.)
| | - Jose Oñate-Garzon
- Grupo de Investigación en Química y Biotecnología (QUIBIO), Facultad de Ciencias Básicas, Universidad Santiago de Cali, calle 5 No. 62-00, Cali 760035, Colombia;
| | - Cristhian J. Yarce
- Laboratorio de Diseño y Formulación de Productos Químicos y Derivados, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Naturales, Universidad ICESI, Calle 18 No. 122-135, Cali 760035, Colombia; (N.M.); (M.J.A.); (M.S.); (C.J.Y.)
| | - Constain H. Salamanca
- Laboratorio de Diseño y Formulación de Productos Químicos y Derivados, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Naturales, Universidad ICESI, Calle 18 No. 122-135, Cali 760035, Colombia; (N.M.); (M.J.A.); (M.S.); (C.J.Y.)
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Hering I, Eilebrecht E, Parnham MJ, Günday-Türeli N, Türeli AE, Weiler M, Schäfers C, Fenske M, Wacker MG. Evaluation of potential environmental toxicity of polymeric nanomaterials and surfactants. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 76:103353. [PMID: 32086102 DOI: 10.1016/j.etap.2020.103353] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 02/05/2020] [Indexed: 05/25/2023]
Abstract
Nanomaterials have gained huge importance in various fields including nanomedicine. Nanoformulations of drugs and nanocarriers are used to increase pharmaceutical potency. However, it was seen that polymeric nanomaterials can cause negative effects. Thus, it is essential to identify nanomaterials with the least adverse effects on aquatic organisms. To determine the toxicity of polymeric nanomaterials, we investigated the effects of poly(lactic-co-glycolid) acid (PLGA), Eudragit® E 100 and hydroxylpropyl methylcellulose phthalate (HPMCP) on zebrafish embryos using the fish embryo toxicity test (FET). Furthermore, we studied Cremophor® RH40, Cremophor® A25, Pluronic® F127 and Pluronic® F68 applied in the generation of nanoformulations to identify the surfactant with minimal toxic impact. The order of ecotoxicty was HPMCP < PLGA < Eudragit® E100 and Pluronic® F68 < Pluronic® F127 < Cremophor® RH40 < Cremophor® A25. In summary, HPMCP and Pluronic® F68 displayed the least toxic impact, thus suggesting adequate environmental compatibility for the generation of nanomedicines.
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Affiliation(s)
- Indra Hering
- Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie IME, 65926, Frankfurt, Main, Germany; Fraunhofer Institut für Molekularbiologie und Angewandte Oekologie IME, 57392, Schmallenberg, Germany; Goethe University Frankfurt am Main, Department Aquatic Ecotoxicology, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany.
| | - Elke Eilebrecht
- Fraunhofer Institut für Molekularbiologie und Angewandte Oekologie IME, 57392, Schmallenberg, Germany
| | - Michael J Parnham
- Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie IME, 65926, Frankfurt, Main, Germany
| | | | | | - Marc Weiler
- MJR, PharmJet GmbH, 66802, Überherrn, Germany
| | - Christoph Schäfers
- Fraunhofer Institut für Molekularbiologie und Angewandte Oekologie IME, 57392, Schmallenberg, Germany
| | - Martina Fenske
- Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie IME, 65926, Frankfurt, Main, Germany.
| | - Matthias G Wacker
- National University of Singapore, Department of Pharmacy, Faculty of Science, 6 Science Drive 2, Singapore, 117546, Singapore
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Assessment of unloaded polymeric nanocapsules with different coatings in female rats: Influence on toxicological and behavioral parameters. Biomed Pharmacother 2019; 121:109575. [PMID: 31689599 DOI: 10.1016/j.biopha.2019.109575] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/09/2019] [Accepted: 10/21/2019] [Indexed: 11/20/2022] Open
Abstract
The unloaded polymeric nanocapsules (NCs) present incredible characteristics as drug carriers. However, the toxicity caused by NCs with different coatings is still a challenge for contemporary toxicology. Allied to this, preclinical studies are performed in males, disregarding possible gender-dependent toxicity. Thus, the aim of present study was to evaluate the influence of different NCs coatings on toxicological and behavioral parameters in female rats. The physicochemical characterization of NCs with different surface coatings: NC1 (Polysorbate 80), NC2 (PEG), NC3 (Eudragit®RS 100) and NC4 (Chitosan) were performed. Female rats were treated with saline, NC1, NC2, NC3 or NC4 daily for 14 days, p.o. After 24 h of last treatment, animals were submitted to behavioral tests. Only after behavioral tests, female rats were euthanized, organs were removed and weighted. After, histopathological, biochemical and oxidative stress analysis were performed. All NCs-coatings did not cause alterations in behavioral tests. For markers of hepatic, renal damage and lipid profile, the different coatings showed a low toxicity. NCs did not alter weight of organs and histopathological analysis. Also, all NCs-coatings did not modify redox balance in organs studied, only NC2 induced a increase of FRAP levels in intestine. This study demonstrated that the different NCs-coatings did not cause behavioral changes and showed a low toxicity in female rats.
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Pachota M, Kłysik-Trzciańska K, Synowiec A, Yukioka S, Yusa SI, Zając M, Zawilinska B, Dzieciątkowski T, Szczubialka K, Pyrc K, Nowakowska M. Highly Effective and Safe Polymeric Inhibitors of Herpes Simplex Virus in Vitro and in Vivo. ACS APPLIED MATERIALS & INTERFACES 2019; 11:26745-26752. [PMID: 31287654 DOI: 10.1021/acsami.9b10302] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A series of poly(ethylene glycol)-block-poly(3-(methacryloylamino)propyl trimethylammonium chloride) (PEG-b-PMAPTAC) water-soluble block copolymers consisting of PEG and PMPTAC were obtained by reversible addition-fragmentation chain-transfer (RAFT) polymerization and demonstrated to function as highly effective herpes simplex virus type 1 (HSV-1) inhibitors as shown by in vitro tests (Vero E6 cells) and in vivo experiments (mouse model). Half-maximal inhibitory concentration (IC50) values were determined by quantitative polymerase chain reaction to be 0.36 ± 0.08 μg/mL for the most effective polymer PEG45-b-PMAPTAC52 and 0.84 ± 1.24 μg/mL for the less effective one, PEG45-b-PMAPTAC74. The study performed on the mouse model showed that the polymers protect mice from lethal infection. The polymers are not toxic to the primary human skin fibroblast cells up to the concentration of 100 μg/mL and to the Vero E6 cells up to 500 μg/mL. No systemic or topical toxicity was observed in vivo, even with mice treated with concentrated formulation (100 mg/mL). The mechanistic studies indicated that polymers interacted with the cell and blocked the formation of the entry/fusion complex. Physicochemical and biological properties of PEGx-b-PMAPTACy make them promising drug candidates.
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Affiliation(s)
| | | | | | - Shotaro Yukioka
- Department of Applied Chemistry, Graduate School of Engineering , University of Hyogo , Himeji 671-2280 , Hyogo Japan
| | - Shin-Ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering , University of Hyogo , Himeji 671-2280 , Hyogo Japan
| | | | - Barbara Zawilinska
- Department of Virology, Chair of Microbiology, Faculty of Medicine , Jagiellonian University Medical College , Krakow 31-121 , Poland
| | - Tomasz Dzieciątkowski
- Chair and Department of Medical Microbiology , Warsaw Medical University , Warsaw 02-004 , Poland
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12
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Pereira MP, de Gomes MG, Izoton JC, Nakama KA, Dos Santos RB, Pinto Savall AS, Ramalho JB, Roman SS, Luchese C, Cibin FW, Pinton S, Haas SE. Cationic and anionic unloaded polymeric nanocapsules: Toxicological evaluation in rats shows low toxicity. Biomed Pharmacother 2019; 116:109014. [PMID: 31146108 DOI: 10.1016/j.biopha.2019.109014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/05/2019] [Accepted: 05/21/2019] [Indexed: 01/23/2023] Open
Abstract
The experimental design aiming at evaluating the performance of drugs nanoencapsulated involves inclusion of a formulation without drug (unloaded). This formulation has sometimes presented per se effect. In this sense, we sought to evaluate the toxicity of unloaded polymeric nanocapsules (NCs) with different surfaces (cationic and anionic) in male Wistar rats in male Wistar rats. The physicochemical characterization of NCs with different surfaces: polysorbate 80 (P80), polyethylene glycol (PEG), eudragit ®RS 100 (EUD) and chitosan (CS) was performed. Rats were treated with unloaded NCs (P80, PEG, EUD and CS surfaces) daily for 14 days per oral route. 24 h of last treatment, animals were euthanized and organs were removed and weighted. After, biochemical determinations were performed. In general, NCs-surfaces did not cause alterations in body weight, weight of organs and histopathological analysis. PEG-surface NCs did not generate hepatotoxicity. In investigation of lipid profile, the surface with P80 changed TC and HDL-C levels. Besides that, all NCs did not alter oxidative stress markers in organs studied (TBARS and Reactive Species) and CS-surface presented antioxidant activity in kidney. This study demonstrated that NCs-surfaces depending on their physicochemical characteristics had low or no toxicity.
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Affiliation(s)
- Muriel Pando Pereira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil
| | - Marcelo Gomes de Gomes
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil
| | - Jessica Cristina Izoton
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil
| | - Kelly Ayumi Nakama
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil
| | - Renata Bem Dos Santos
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil
| | - Anne Suely Pinto Savall
- Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, UNIPAMPA, Uruguaiana, Brazil
| | - Juliana Bernera Ramalho
- Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, UNIPAMPA, Uruguaiana, Brazil
| | - Silvane Souza Roman
- Universidade Regional Integrada do Alto Uruguai e das Missões, Campus Erechim, Erechim, Brazil
| | - Cristiane Luchese
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica, Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Francielli Weber Cibin
- Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, UNIPAMPA, Uruguaiana, Brazil
| | - Simone Pinton
- Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, UNIPAMPA, Uruguaiana, Brazil
| | - Sandra Elisa Haas
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pampa, Campus Uruguaiana BR 472, Km 7, 97500-970, Uruguaiana, RS, Brazil.
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13
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Evaluation of the Antimicrobial Activity of Cationic Peptides Loaded in Surface-Modified Nanoliposomes against Foodborne Bacteria. Int J Mol Sci 2019; 20:ijms20030680. [PMID: 30764495 PMCID: PMC6386929 DOI: 10.3390/ijms20030680] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 01/31/2019] [Accepted: 02/02/2019] [Indexed: 01/03/2023] Open
Abstract
Bacteria are a common group of foodborne pathogens presenting public health issues with a large economic burden for the food industry. Our work focused on a solution to this problem by evaluating antibiotic activity against two bacteria (Listeria monocytogenes and Escherichia coli) of relevance in the field of foodstuffs. We used two approaches: (i) structural modification of the antimicrobial peptides and (ii) nano-vehiculisation of the modified peptides into polymer-coated liposomes. To achieve this, two antimicrobial peptides, herein named ‘peptide +2′ and ‘peptide +5′ were synthesised using the solid phase method. The physicochemical characterisation of the peptides was carried out using measurements of surface tension and dynamic light scattering. Additionally, nanoliposomes were elaborated by the ethanol injection method and coated with a cationic polymer (Eudragit E-100) through the layer-by-layer process. Liposome characterisation, in terms of size, polydispersity and zeta potential, was undertaken using dynamic light scattering. The results show that the degree of hydrophilic modification in the peptide leads to different characteristics of amphipathicity and subsequently to different physicochemical behaviour. On the other hand, antibacterial activity against both bacteria was slightly altered after modifying peptide sequence. Nonetheless, after the encapsulation of the peptides into polymer-coated nano-liposomes, the antibacterial activity increased approximately 2000-fold against that of L. monocytogenes.
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14
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Lin X, Su L, Li N, Hu Y, Tang G, Liu L, Li H, Yang Z. Understanding the mechanism of dissolution enhancement for poorly water-soluble drugs by solid dispersions containing Eudragit® E PO. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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15
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Pachota M, Klysik K, Synowiec A, Ciejka J, Szczubiałka K, Pyrć K, Nowakowska M. Inhibition of Herpes Simplex Viruses by Cationic Dextran Derivatives. J Med Chem 2017; 60:8620-8630. [DOI: 10.1021/acs.jmedchem.7b01189] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Magdalena Pachota
- Microbiology
Department, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland
- Malopolska
Centre of Biotechnology, Jagiellonian University, Gronostajowa 7A, 30-387 Krakow, Poland
| | - Katarzyna Klysik
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Aleksandra Synowiec
- Microbiology
Department, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland
| | - Justyna Ciejka
- Malopolska
Centre of Biotechnology, Jagiellonian University, Gronostajowa 7A, 30-387 Krakow, Poland
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Krzysztof Szczubiałka
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Krzysztof Pyrć
- Microbiology
Department, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland
- Malopolska
Centre of Biotechnology, Jagiellonian University, Gronostajowa 7A, 30-387 Krakow, Poland
| | - Maria Nowakowska
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
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16
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Mauro N, Ferruti P, Ranucci E, Manfredi A, Berzi A, Clerici M, Cagno V, Lembo D, Palmioli A, Sattin S. Linear biocompatible glyco-polyamidoamines as dual action mode virus infection inhibitors with potential as broad-spectrum microbicides for sexually transmitted diseases. Sci Rep 2016; 6:33393. [PMID: 27641362 PMCID: PMC5027566 DOI: 10.1038/srep33393] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 08/16/2016] [Indexed: 01/06/2023] Open
Abstract
The initial steps of viral infections are mediated by interactions between viral proteins and cellular receptors. Blocking the latter with high-affinity ligands may inhibit infection. DC-SIGN, a C-type lectin receptor expressed by immature dendritic cells and macrophages, mediates human immunodeficiency virus (HIV) infection by recognizing mannose clusters on the HIV-1 gp120 envelope glycoprotein. Mannosylated glycodendrimers act as HIV entry inhibitors thanks to their ability to block this receptor. Previously, an amphoteric, but prevailingly cationic polyamidoamine named AGMA1 proved effective as infection inhibitor for several heparan sulfate proteoglycan-dependent viruses, such as human papilloma virus HPV-16 and herpes simplex virus HSV-2. An amphoteric, but prevailingly anionic PAA named ISA23 proved inactive. It was speculated that the substitution of mannosylated units for a limited percentage of AGMA1 repeating units, while imparting anti-HIV activity, would preserve the fundamentals of its HPV-16 and HSV-2 infection inhibitory activity. In this work, four biocompatible linear PAAs carrying different amounts of mannosyl-triazolyl pendants, Man-ISA7, Man-ISA14, Man-AGMA6.5 and Man-AGMA14.5, were prepared by reaction of 2-(azidoethyl)-α-D-mannopyranoside and differently propargyl-substituted AGMA1 and ISA23. All mannosylated PAAs inhibited HIV infection. Both Man-AGMA6.5 and Man-AGMA14.5 maintained the HPV-16 and HSV-2 activity of the parent polymer, proving broad-spectrum, dual action mode virus infection inhibitors.
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Affiliation(s)
- Nicolò Mauro
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
| | - Paolo Ferruti
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
- Consorzio Interuniversitario di Scienza e Tecnologia dei Materiali, via G. Giusti 9, 56121 Firenze, Italy
| | - Elisabetta Ranucci
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
| | - Amedea Manfredi
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
| | - Angela Berzi
- Department of Biomedical and Clinical Sciences “Sacco”, University of Milan, via G. B. Grassi 74, 20157 Milan, Italy
| | - Mario Clerici
- Department of Medical, Surgical and Transplants Physiopathology, University of Milan, via Fratelli Cervi 93, 20090 Segrate, Milan, and Don C. Gnocchi Foundation IRCCS, Via Capecelatro 66, 20148 Milan, Italy
| | - Valeria Cagno
- Dipartimento di Scienze Cliniche e Biologiche, Università di Torino, Azienda Ospedaliero Universitaria S. Luigi Gonzaga, via Regione Gonzole 10, 10043 Orbassano, Torino, Italy
| | - David Lembo
- Dipartimento di Scienze Cliniche e Biologiche, Università di Torino, Azienda Ospedaliero Universitaria S. Luigi Gonzaga, via Regione Gonzole 10, 10043 Orbassano, Torino, Italy
| | - Alessandro Palmioli
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
| | - Sara Sattin
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
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17
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Constantinides PP, Chakraborty S, Shukla D. Considerations and recommendations on traditional and non-traditional uses of excipients in oral drug products. AAPS OPEN 2016. [DOI: 10.1186/s41120-016-0004-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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18
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Szczubiałka K, Pyrć K, Nowakowska M. In search for effective and definitive treatment of herpes simplex virus type 1 (HSV-1) infections. RSC Adv 2016. [DOI: 10.1039/c5ra22896d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Herpes Simplex Virus type 1 (HSV-1) is a nuclear replicating enveloped virus.
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Affiliation(s)
| | - Krzysztof Pyrć
- Faculty of Biochemistry, Biophysics and Biotechnology
- Jagiellonian University
- 30-387 Kraków
- Poland
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19
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Chen X, Hu B, Xing X, Liu Z, Zuo Y, Xiang Q. Preparation of grafted cationic polymer/silver chloride modified cellulose fibers and their antibacterial properties. J Appl Polym Sci 2015. [DOI: 10.1002/app.42092] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoqin Chen
- College of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Bojian Hu
- AppTech Company, Limited; Shanghai 200131 China
| | - Xiaodong Xing
- College of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Zuliang Liu
- College of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Yan Zuo
- College of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Qian Xiang
- College of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
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20
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Jain R, Dandekar P, Loretz B, Koch M, Lehr CM. Dimethylaminoethyl methacrylate copolymer-siRNA nanoparticles for silencing a therapeutically relevant gene in macrophages. MEDCHEMCOMM 2015. [DOI: 10.1039/c4md00490f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DMC nanoparticles target Bfl1/A1 gene in lung macrophages and effective silencing of Bfl1/A1 gene by DMC nanoparticles paves the way for research on alternative treatment strategies for tuberculosis.
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Affiliation(s)
- Ratnesh Jain
- Department of Chemical Engineering
- Institute of Chemical Technology
- NP Marg
- Mumbai 400019
- India
| | - Prajakta Dandekar
- Department of Pharmaceutical Sciences and Technology
- Institute of Chemical Technology
- NP Marg
- Mumbai 400019
- India
| | - Brigitta Loretz
- Department of Drug Delivery (DDEL)
- Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)
- Campus A4 1
- Saarland University
- Saarbrücken
| | - Marcus Koch
- Innovative Electron Microscopy
- INM – Leibniz Institute for New Materials
- Service Group Physical Analysis
- Campus D2 2
- Saarland University
| | - Claus-Michael Lehr
- Department of Drug Delivery (DDEL)
- Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)
- Campus A4 1
- Saarland University
- Saarbrücken
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21
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Quinteros DA, Tártara LI, Palma SD, Manzo RH, Allemandi DA. Ocular delivery of flurbiprofen based on Eudragit(®) E-flurbiprofen complex dispersed in aqueous solution: preparation, characterization, in vitro corneal penetration, and ocular irritation. J Pharm Sci 2014; 103:3859-3868. [PMID: 25294798 DOI: 10.1002/jps.24153] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 07/22/2014] [Accepted: 08/12/2014] [Indexed: 11/11/2022]
Abstract
A novel ophthalmic formulation based on the ionic complexation between Eudragit E 100 (EU) and flurbiprofen (FB) is proposed. The selected complex composition, named EU-FBH50 Cl50 , had the basic groups of EU completely neutralized with equal molar amounts of FB and HCl. This complex, obtained in the solid state, exhibited a high aqueous compatibility producing a colloidal dispersion with a high positive electrokinetic potential, in which more than 99% of FB was ionically condensed with EU. In bicompartimental Franz cells, FB diffusion from the complex was very slow. However, dispersion in 0.9% NaCl increased the FB release through an ionic exchange, providing an optimal constant rate of delivery. Corneal FB permeation from 0.1% EU-FBH50 -Cl50 dispersed in 0.9% NaCl solution was substantially more effective compared with 0.1% FB solution, EU-FBH50 -Cl50 (Dex), or Tolerane(®) (a marketed formulation). This complex formulation was shown to be innocuous for rabbit ocular tissues because no irritant effects were evidenced.
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Affiliation(s)
- Daniela Alejandra Quinteros
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA)CONICET; Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000-Córdoba, Argentina.
| | - Luis Ignacio Tártara
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA)CONICET; Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000-Córdoba, Argentina
| | - Santiago Daniel Palma
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA)CONICET; Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000-Córdoba, Argentina
| | - Ruben Hilario Manzo
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA)CONICET; Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000-Córdoba, Argentina
| | - Daniel Alberto Allemandi
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA)CONICET; Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000-Córdoba, Argentina
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22
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Riva JS, Cámara CI, Juarez AV, Yudi LM. Electrochemical behaviour of cationic polyelectrolytes at a polarized liquid/liquid interface. J APPL ELECTROCHEM 2014. [DOI: 10.1007/s10800-014-0747-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Agmatine-containing poly(amidoamine)s as a novel class of antiviral macromolecules: structural properties and in vitro evaluation of infectivity inhibition. Antimicrob Agents Chemother 2014; 58:6315-9. [PMID: 25092704 DOI: 10.1128/aac.03420-14] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Poly(amidoamine)s (PAAs) are multifunctional tert-amine polymers endowed with high structural versatility. Here we report on the screening of a minilibrary of PAAs against a panel of viruses. The PAA AGMA1 showed antiviral activity against herpes simplex virus, human cytomegalovirus, human papillomavirus 16, and respiratory syncytial virus but not against human rotavirus and vesicular stomatitis virus. The results suggest the contribution of both a polycationic nature and side guanidine groups in imparting antiviral activity.
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24
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Riva JS, Beltramo DM, Yudi LM. Adsorption–desorption mechanism of a cationic polyelectrolyte based on dimethylaminoethyl polymethacrylates at the water/1,2-dichloroethane interface. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.10.156] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Maitani Y, Ishigaki K, Nakazawa Y, Aragane D, Akimoto T, Iwamizu M, Kai T, Hayashi K. Polyethylenimine combined with liposomes and with decreased numbers of primary amine residues strongly enhanced therapeutic antiviral efficiency against herpes simplex virus type 2 in a mouse model. J Control Release 2013; 166:139-46. [PMID: 23298614 DOI: 10.1016/j.jconrel.2012.12.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 12/05/2012] [Accepted: 12/18/2012] [Indexed: 01/21/2023]
Abstract
The development of antiviral agents that have novel mechanisms of action is urgently required in the topical therapy of herpes simplex virus type 2 (HSV-2) infections. We reported previously that topical application of branched 3610-Da polyethylenimine (PEI) exhibited preventative antiviral activity. In this study, to develop therapeutic anti-HSV-2 agents, the most potent PEI combined with ~200 nm-sized liposomes with or without oleic acid (liposomes/PEI) was selected in vitro and further evaluated using in vivo studies. The mechanism of action in vivo was elucidated using PEIs with decreased numbers of primary amine residues, resulting from ethylene carbonate treatment, and polyallylamine, a linear polyamine consisting of primary amines. Cytotoxicity and antiviral activity in vitro, and the appearance of acute herpetic disease and virus yields in mice intravaginally administered with liposomes/PEI were evaluated in cell culture assays and a mouse genital herpes model, respectively. In addition, the cellular association of liposome/PEI was examined by flow cytometry and confocal microscopy. PEI showed higher antiviral activity postinfection than preinfection in vivo. Liposome/PEI and PEI with decreased numbers of primary amine residues at a dose of 0.2 mg PEI/mouse exhibited more potent therapeutic antiviral activity than acyclovir and PEI alone without acute lesion appearance or toxicity pre- or postinfection, but polyallylamine was moderately effective only preinfection. Liposome concentrations were important for the effectiveness of liposome/PEI. This finding suggests that PEI combined with liposomes and with slightly decreased numbers of primary amines may be an effective vaginally administrated antiviral drug, and secondary and tertiary amine residues of PEI may contribute to the inhibitory efficiency against viral infection.
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Affiliation(s)
- Yoshie Maitani
- Institute of Medicinal Chemistry, Hoshi University, Japan.
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26
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Romero VL, Pons P, Bocco JL, Manzo RH, Alovero FL. Eudragit E100® potentiates the bactericidal action of ofloxacin against fluoroquinolone-resistant Pseudomonas aeruginosa. FEMS Microbiol Lett 2012; 334:102-10. [DOI: 10.1111/j.1574-6968.2012.02626.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2012] [Revised: 05/30/2012] [Accepted: 06/18/2012] [Indexed: 12/01/2022] Open
Affiliation(s)
- Verónica L. Romero
- Departamento de Farmacia; Facultad de Ciencias Químicas; Universidad Nacional de Córdoba; Córdoba; Argentina
| | - Patricia Pons
- Centro de Microscopía Electrónica; Facultad de Ciencias Médicas; Universidad Nacional de Córdoba; Córdoba; Argentina
| | - José L. Bocco
- Departamento de Bioquímica Clínica; Facultad de Ciencias Químicas; Universidad Nacional de Córdoba; Córdoba; Argentina
| | - Rubén H. Manzo
- Departamento de Farmacia; Facultad de Ciencias Químicas; Universidad Nacional de Córdoba; Córdoba; Argentina
| | - Fabiana L. Alovero
- Departamento de Farmacia; Facultad de Ciencias Químicas; Universidad Nacional de Córdoba; Córdoba; Argentina
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Eudragit E100 surface activity and lipid interactions. Colloids Surf B Biointerfaces 2012; 91:84-9. [DOI: 10.1016/j.colsurfb.2011.10.041] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 10/20/2011] [Accepted: 10/21/2011] [Indexed: 02/04/2023]
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Obermeier B, Langguth P, Frey H. Partially Quarternized Amino Functional Poly(methacrylate) Terpolymers: Versatile Drug Permeability Modifiers. Biomacromolecules 2010; 12:425-31. [DOI: 10.1021/bm1012037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Boris Obermeier
- Institute of Organic Chemistry, Organic and Macromolecular Chemistry, Duesbergweg 10-14, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany, and Institute of Pharmacy, Department of Biopharmaceutics and Pharmaceutical Technology, Staudingerweg 5, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - Peter Langguth
- Institute of Organic Chemistry, Organic and Macromolecular Chemistry, Duesbergweg 10-14, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany, and Institute of Pharmacy, Department of Biopharmaceutics and Pharmaceutical Technology, Staudingerweg 5, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - Holger Frey
- Institute of Organic Chemistry, Organic and Macromolecular Chemistry, Duesbergweg 10-14, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany, and Institute of Pharmacy, Department of Biopharmaceutics and Pharmaceutical Technology, Staudingerweg 5, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
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Hasanovic A, Hollick C, Fischinger K, Valenta C. Improvement in physicochemical parameters of DPPC liposomes and increase in skin permeation of aciclovir and minoxidil by the addition of cationic polymers. Eur J Pharm Biopharm 2010; 75:148-53. [DOI: 10.1016/j.ejpb.2010.03.014] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 02/09/2010] [Accepted: 03/18/2010] [Indexed: 11/27/2022]
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30
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Grube S, Wolfrum U, Langguth P. Characterization of the Epithelial Permeation Enhancing Effect of Basic Butylated Methacrylate Copolymer—In Vitro Studies. Biomacromolecules 2008; 9:1398-405. [DOI: 10.1021/bm701337q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stefan Grube
- Department of Biopharmaceutics and Pharmaceutical Technology, Johannes Gutenberg University, Saudinger Weg 5, Mainz, Germany, and Institute of Zoology, Johannes Gutenberg University, Department of Cell and Matrix Biology, Mainz, Germany
| | - Uwe Wolfrum
- Department of Biopharmaceutics and Pharmaceutical Technology, Johannes Gutenberg University, Saudinger Weg 5, Mainz, Germany, and Institute of Zoology, Johannes Gutenberg University, Department of Cell and Matrix Biology, Mainz, Germany
| | - Peter Langguth
- Department of Biopharmaceutics and Pharmaceutical Technology, Johannes Gutenberg University, Saudinger Weg 5, Mainz, Germany, and Institute of Zoology, Johannes Gutenberg University, Department of Cell and Matrix Biology, Mainz, Germany
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Alasino RV, Bianco ID, Vitali MS, Zarzur JA, Beltramo DM. Characterization of the Inhibition of Enveloped Virus Infectivity by the Cationic Acrylate Polymer Eudragit E100. Macromol Biosci 2007; 7:1132-8. [PMID: 17787020 DOI: 10.1002/mabi.200700102] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The antiviral effects of the cationic acrylate polymer E100 on a panel of lipid-enveloped viruses and the interactions involved are studied. The treatment of several common viruses with E100 induced a dose-dependent inhibition of the infectivity of viruses below the detection limit of the assays employed. Similarly, the treatment of human sera infected with HIV or HCV reduced virus RNA plasma levels to undetectable values. This implies that Eudragit E100 can interact with enveloped viruses, even in the presence of proteins, through a mechanism that is not reversed by titration of the positively charged groups of the polymer, opening the possibility to remove viral particles with the polymer as it is eliminated.
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Affiliation(s)
- Roxana V Alasino
- Centro de Excelencia en Productos y Procesos de Córdoba, Agencia Córdoba Ciencia S. E., Pabellón CEPROCOR, CP 5164, Santa María de Punilla, Córdoba, Argentina
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Sambhy V, MacBride MM, Peterson BR, Sen A. Silver Bromide Nanoparticle/Polymer Composites: Dual Action Tunable Antimicrobial Materials. J Am Chem Soc 2006; 128:9798-808. [PMID: 16866536 DOI: 10.1021/ja061442z] [Citation(s) in RCA: 442] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present a simple method of fabricating highly potent dual action antibacterial composites consisting of a cationic polymer matrix and embedded silver bromide nanoparticles. A simple and novel technique of on-site precipitation of AgBr was used to synthesize the polymer/nanoparticle composites. The synthesized composites have potent antibacterial activity toward both gram-positive and gram-negative bacteria. The materials form good coatings on surfaces and kill both airborne and waterborne bacteria. Surfaces coated with these composites resist biofilm formation. These composites are different from other silver-containing antibacterial materials both in the ease of synthesis and in the use of a silver salt nanoparticle instead of elemental silver or complex silver compounds. We also demonstrate the ability to tune the release of biocidal Ag(+) ions from these composites by controlling the size of the embedded AgBr nanoparticles. These composites are potentially useful as antimicrobial coatings in a wide variety of biomedical and general use applications.
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Affiliation(s)
- Varun Sambhy
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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