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Bodnár K, Fehér P, Ujhelyi Z, Bácskay I, Józsa L. Recent Approaches for the Topical Treatment of Psoriasis Using Nanoparticles. Pharmaceutics 2024; 16:449. [PMID: 38675110 PMCID: PMC11054466 DOI: 10.3390/pharmaceutics16040449] [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] [Received: 02/13/2024] [Revised: 03/19/2024] [Accepted: 03/22/2024] [Indexed: 04/28/2024] Open
Abstract
Psoriasis (PSO) is a chronic autoimmune skin condition characterized by the rapid and excessive growth of skin cells, which leads to the formation of thick, red, and scaly patches on the surface of the skin. These patches can be itchy and painful, and they may cause discomfort for patients affected by this condition. Therapies for psoriasis aim to alleviate symptoms, reduce inflammation, and slow down the excessive skin cell growth. Conventional topical treatment options are non-specific, have low efficacy and are associated with adverse effects, which is why researchers are investigating different delivery mechanisms. A novel approach to drug delivery using nanoparticles (NPs) shows promise in reducing toxicity and improving therapeutic efficacy. The unique properties of NPs, such as their small size and large surface area, make them attractive for targeted drug delivery, enhanced drug stability, and controlled release. In the context of PSO, NPs can be designed to deliver active ingredients with anti-inflammatory effect, immunosuppressants, or other therapeutic compounds directly to affected skin areas. These novel formulations offer improved access to the epidermis and facilitate better absorption, thus enhancing the therapeutic efficacy of conventional anti-psoriatic drugs. NPs increase the surface-to-volume ratio, resulting in enhanced penetration through the skin, including intracellular, intercellular, and trans-appendage routes. The present review aims to discuss the latest approaches for the topical therapy of PSO using NPs. It is intended to summarize the results of the in vitro and in vivo examinations carried out in the last few years regarding the effectiveness and safety of nanoparticles.
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Affiliation(s)
- Krisztina Bodnár
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary; (K.B.); (P.F.); (Z.U.); (I.B.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Pálma Fehér
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary; (K.B.); (P.F.); (Z.U.); (I.B.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Zoltán Ujhelyi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary; (K.B.); (P.F.); (Z.U.); (I.B.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Ildikó Bácskay
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary; (K.B.); (P.F.); (Z.U.); (I.B.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
| | - Liza Józsa
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary; (K.B.); (P.F.); (Z.U.); (I.B.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei körút 98, 4032 Debrecen, Hungary
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Madhappan S, Kim SH, Huh P, Jung YS, Kim SC. Dramatic reduction of toxicity of Poly(hexamethylene guanidine) disinfectant by charge neutralization. ENVIRONMENTAL RESEARCH 2023; 231:116172. [PMID: 37201704 DOI: 10.1016/j.envres.2023.116172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 02/10/2023] [Accepted: 05/15/2023] [Indexed: 05/20/2023]
Abstract
The current study aimed to investigate the toxicity of positively charged polyhexamethylene guanidine (PHMG) polymer and its complexation with different anionic natural polymers such as k-carrageenan (kCG), chondroitin sulfate (CS), sodium alginate (Alg.Na), polystyrene sulfonate sodium (PSS.Na) and hydrolyzed pectin (HP). The physicochemical properties of the synthesized PHMG and its combination with anionic polyelectrolyte complexes (PECs) namely PHMG:PECs were characterized using zeta potential, XPS, FTIR, and TG analysis. Furthermore, cytotoxic behavior of the PHMG and PHMG:PECs, respectively, were evaluated using human liver cancer cell line (HepG2). The study results revealed that the PHMG alone had slightly higher cytotoxicity to the HepG2 cells than the prepared polyelectrolyte complexes such as PHMG:PECs. The PHMG:PECs showed a significant reduction of cytotoxicity to the HepG2 cells than the pristine PHMG alone. A reduction of PHMG toxicity was observed may be due to the facile formation of complexation between the positively charged PHMG and negatively charged anionic natural polymers such as kCG, CS, Alg. Na, PSS.Na and HP, respectively, via charge balance or neutralization. The experimental results indicate that the suggested method might significantly lower PHMG toxicity while improving biocompatibility.
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Affiliation(s)
| | - Sou Hyun Kim
- Department of Pharmacy, College of Pharmacy,Research Institute for Drug Development, Pusan National University, Geumjeong-gu, Busan-46241, Republic of Korea
| | - Pilho Huh
- Department of Polymer Science and Engineering, Pusan National University, Geumjeong-gu, Busan-46241, Republic of Korea
| | - Young-Suk Jung
- Department of Pharmacy, College of Pharmacy,Research Institute for Drug Development, Pusan National University, Geumjeong-gu, Busan-46241, Republic of Korea.
| | - Seong-Cheol Kim
- School of Chemical Engineering, Yeungnam University, Gyeongsan- 38544, Republic of Korea.
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Weak Polyelectrolytes as Nanoarchitectonic Design Tools for Functional Materials: A Review of Recent Achievements. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103263. [PMID: 35630741 PMCID: PMC9145934 DOI: 10.3390/molecules27103263] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 12/23/2022]
Abstract
The ionization degree, charge density, and conformation of weak polyelectrolytes can be adjusted through adjusting the pH and ionic strength stimuli. Such polymers thus offer a range of reversible interactions, including electrostatic complexation, H-bonding, and hydrophobic interactions, which position weak polyelectrolytes as key nano-units for the design of dynamic systems with precise structures, compositions, and responses to stimuli. The purpose of this review article is to discuss recent examples of nanoarchitectonic systems and applications that use weak polyelectrolytes as smart components. Surface platforms (electrodeposited films, brushes), multilayers (coatings and capsules), processed polyelectrolyte complexes (gels and membranes), and pharmaceutical vectors from both synthetic or natural-type weak polyelectrolytes are discussed. Finally, the increasing significance of block copolymers with weak polyion blocks is discussed with respect to the design of nanovectors by micellization and film/membrane nanopatterning via phase separation.
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Salamanca CH, Barrera-Ocampo Á, Oñate-Garzón J. Development, Characterization, and Antimicrobial Evaluation of Ampicillin-Loaded Nanoparticles Based on Poly(maleic acid- co-vinylpyrrolidone) on Resistant Staphylococcus aureus Strains. Molecules 2022; 27:molecules27092943. [PMID: 35566294 PMCID: PMC9102852 DOI: 10.3390/molecules27092943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/20/2022] [Accepted: 04/27/2022] [Indexed: 02/01/2023] Open
Abstract
This study was focused on synthesizing, characterizing, and evaluating the antimicrobial effect of polymer nanoparticles (NPs) loaded with ampicillin. For this, the NPs were produced through polymeric self-assembly in aqueous media assisted by high-intensity sonication, using anionic polymers corresponding to the sodium salts of poly(maleic acid-co-vinylpyrrolidone) and poly(maleic acid-co-vinylpyrrolidone) modified with decyl-amine, here named as PMA-VP and PMA-VP-N10, respectively. The polymeric NPs were analyzed and characterized through the formation of polymeric pseudo-phases utilizing pyrene as fluorescent probe, as well as by measurements of particle size, zeta potential, polydispersity index, and encapsulation efficiency. The antimicrobial effect was evaluated by means of the broth microdilution method employing ampicillin sensitive and resistant Staphylococcus aureus strains. The results showed that PMA-VP and PMA-VP-N10 polymers can self-assemble, forming several types of hydrophobic pseudo-phases with respect to the medium pH and polymer concentration. Likewise, the results described that zeta potential, particle size, polydispersity index, and encapsulation efficiency are extremely dependent on the medium pH, whereas the antimicrobial activity displayed an interesting recovery of antibiotic activity when ampicillin is loaded in the polymeric NPs.
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Affiliation(s)
- Constain H. Salamanca
- Grupo de investigación Biopolimer, Departamento de Farmacia, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia, Calle 67 No. 53-108, Medellín 050010, Colombia
- Grupo de Investigación Natura, Facultad de Ciencias Naturales, Universidad ICESI, Calle 18 No. 122-135, Cali 760035, Colombia;
- Correspondence:
| | - Álvaro Barrera-Ocampo
- Grupo de Investigación Natura, Facultad de Ciencias Naturales, Universidad ICESI, Calle 18 No. 122-135, Cali 760035, Colombia;
| | - Jose Oñate-Garzón
- Grupo de Investigación en Química y Biotecnología (QUIBIO), Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 No. 62-00, Cali, Colombia 760035, Colombia;
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Bandarkar F, Masocha W, Nada A. Pharmacodynamic/pharmacokinetic correlation of optimized ibuprofen nanosuspensions having enhanced anti-inflammatory and antinociceptive activity. J Pharm Pharmacol 2021; 74:387-396. [PMID: 34792142 DOI: 10.1093/jpp/rgab152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 10/14/2021] [Indexed: 11/12/2022]
Abstract
OBJECTIVES The main objective of this study was to evaluate the antinociceptive and anti-inflammatory activity of ibuprofen (IB) nanoformulations which were developed in our previous study and showed enhanced in-vitro dissolution rate compared with the marketed formulation. METHODS The in-vivo pharmacodynamic (PD) studies were performed in mice. The antinociceptive effect of the formulations was evaluated using the formalin test, whereas the anti-inflammatory activity was evaluated by measuring oedema caused by formalin test. KEY FINDINGS The optimized formulation exhibited nanosized particles with rapid dissolution compared with IB in water and marketed product. The antinociceptive and anti-inflammatory activity of IB was significantly improved in optimized nanosuspension compared with other formulations. A good correlation was observed between the pharmacokinetic and PD data: nanosuspension > freeze-dried nanoparticles > marketed product > unhomogenized formulation > IB suspension in water. There was a significantly good correlation between percentage inhibition of paw oedema with peak serum concentration (Cmax) and time at which the Cmax is observed (Tmax) but not area under the curve (AUC), whereas there was a good correlation between percentage inhibition of formalin-induced nociception in phase II, but not phase I, with AUC and Cmax but not Tmax. CONCLUSIONS The development of IB nanoformulation by ultra-homogenization technique improved its dissolution and PD properties.
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Affiliation(s)
- Farzana Bandarkar
- Department of Pharmaceutics, Faculty of Pharmacy, Kuwait University, Kuwait city, Kuwait
| | - Willias Masocha
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Kuwait University, Kuwait city, Kuwait
| | - Aly Nada
- Department of Pharmaceutics, Faculty of Pharmacy, Kuwait University, Kuwait city, Kuwait
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de Morais SC, Bezerra BG, Castro BB, Balaban RDC. Evaluation of polyelectrolytic complexes based on poly(epichlorohydrin-co-dimethylamine) and poly (4-styrene-sulfonic acid-co-maleic acid) in the delivery of polyphosphates for the control of CaCO3 scale in oil wells. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Optimization of dextran sulfate/poly-l-lysine based nanogels polyelectrolyte complex for intranasal ovalbumin delivery. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102678] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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In Silico Characterization of the Interaction between the PBP2a "Decoy" Protein of Resistant Staphylococcus aureus and the Monomeric Units of Eudragit E-100 and Poly(Maleic Acid- alt-Octadecene) Polymers. Polymers (Basel) 2021; 13:polym13142320. [PMID: 34301077 PMCID: PMC8309622 DOI: 10.3390/polym13142320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 11/17/2022] Open
Abstract
Antimicrobial treatment alternatives for methicillin-resistant Staphylococcus aureus (MRSA) are increasingly limited. MRSA strains are resistant to methicillin due to the formation of β-lactamase enzymes, as well as the acquisition of the mecA gene, which encodes the penicillin-binding protein (PBP2a) that reduces the affinity for β-lactam drugs. Previous studies have shown that the use of ampicillin-loaded nanoparticles can improve antimicrobial activity on resistant S. aureus strains. However, the biological mechanism of this effect has not yet been properly elucidated. Therefore, this short communication focused on characterizing the in silico interactions of the PBP2a membrane receptor protein from S. aureus against the monomeric units of two polymeric materials previously used in the development of different nanoparticles loaded with ampicillin. Such polymers correspond to Eudragit E-100 chloride (EuCl) and the sodium salt of poly(maleic acid-alt-octadecene) (PAM-18Na). For this, molecular coupling studies were carried out in the active site of the PBP2a protein with the monomeric units of both polymers in neutral and ionized form, as well as with ampicillin antibiotic (model β-lactam drug). The results showed that ampicillin, as well as the monomeric units of EuCl and PAM18Na, described a slight binding free energy to the PBPa2 protein. In addition, it was found that the amino acids of the active site of the PBPa2 protein have interactions of different types and intensities, suggesting, in turn, different forms of protein–substrate coupling.
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Bukhovets AV, Sitenkov AY, Moustafine RI. Comparative evaluation study of polycomplex carriers based on Eudragit®
EPO
/
S100
copolymers prepared in different media. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Spirescu VA, Chircov C, Grumezescu AM, Andronescu E. Polymeric Nanoparticles for Antimicrobial Therapies: An Up-To-Date Overview. Polymers (Basel) 2021; 13:724. [PMID: 33673451 PMCID: PMC7956825 DOI: 10.3390/polym13050724] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 12/20/2022] Open
Abstract
Despite the many advancements in the pharmaceutical and medical fields and the development of numerous antimicrobial drugs aimed to suppress and destroy pathogenic microorganisms, infectious diseases still represent a major health threat affecting millions of lives daily. In addition to the limitations of antimicrobial drugs associated with low transportation rate, water solubility, oral bioavailability and stability, inefficient drug targeting, considerable toxicity, and limited patient compliance, the major cause for their inefficiency is the antimicrobial resistance of microorganisms. In this context, the risk of a pre-antibiotic era is a real possibility. For this reason, the research focus has shifted toward the discovery and development of novel and alternative antimicrobial agents that could overcome the challenges associated with conventional drugs. Nanotechnology is a possible alternative, as there is significant evidence of the broad-spectrum antimicrobial activity of nanomaterials and nanoparticles in particular. Moreover, owing to their considerable advantages regarding their efficient cargo dissolving, entrapment, encapsulation, or surface attachment, the possibility of forming antimicrobial groups for specific targeting and destruction, biocompatibility and biodegradability, low toxicity, and synergistic therapy, polymeric nanoparticles have received considerable attention as potential antimicrobial drug delivery agents. In this context, the aim of this paper is to provide an up-to-date overview of the most recent studies investigating polymeric nanoparticles designed for antimicrobial therapies, describing both their targeting strategies and their effects.
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Affiliation(s)
- Vera Alexandra Spirescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (V.A.S.); (C.C.); (E.A.)
| | - Cristina Chircov
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (V.A.S.); (C.C.); (E.A.)
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (V.A.S.); (C.C.); (E.A.)
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (V.A.S.); (C.C.); (E.A.)
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Hedaya M, Bandarkar F, Nada A. In vitro and in vivo Evaluation of Ibuprofen Nanosuspensions for Enhanced Oral Bioavailability. Med Princ Pract 2021; 30:361-368. [PMID: 33823524 PMCID: PMC8436653 DOI: 10.1159/000516299] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 04/05/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION The objectives were to prepare, characterize, and evaluate different ibuprofen (IBU) nanosuspensions. METHODS The nanosuspensions produced by ultrahomogenization were compared with a marketed IBU suspension for particle size, in vitro dissolution, and in vivo absorption. Five groups of rabbits were orally administered with 25 mg/kg of IBU nanosuspension, nanoparticles, unhomogenized suspension, marketed product, and untreated suspension. A sixth group received 5 mg/kg IBU intravenously. Blood samples obtained were analyzed by chromatography. RESULTS The nanosuspensions showed significant decrease in particle size. Polyvinylpyrrolidone (PP) K30 profoundly increased aqueous solubility of IBU. Addition of Tween 80 (TW), in equal amount as PP (IBU:PP:TW, 1:2:2 w/w), resulted in much smaller particle size and better dissolution rate. The Cmax values achieved were 14.8 ± 1.64, 11.1 ± 1.37, 9.01 ± 0.761, 7.03 ± 1.38, and 3.23 ± 1.03 μg/mL, and the tmax values were 36 ± 8.2, 39 ± 8.2, 100 ± 17.3, 112 ± 15, and 105 ± 17 min for the nanosuspension, nanoparticle, unhomogenized suspension, marketed IBU suspension, and untreated IBU suspension in water, respectively. Bioavailability of the different formulations relative to the marketed suspension was found to be in the following sequence: nanosuspension > unhomogenized suspension > nanoparticles > untreated IBU suspension. CONCLUSION IBU/PP/TW nanosuspension showed enhanced in vitro and in vivo performance as compared to the marketed product. Nanosuspensions prepared by the ultrahigh-pressure homogenization technique can be used as a good formulation strategy to enhance the rate and extent of absorption of poorly soluble drugs.
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Liscano Y, Oñate-Garzón J, Delgado JP. Peptides with Dual Antimicrobial-Anticancer Activity: Strategies to Overcome Peptide Limitations and Rational Design of Anticancer Peptides. Molecules 2020; 25:E4245. [PMID: 32947811 PMCID: PMC7570524 DOI: 10.3390/molecules25184245] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 12/31/2022] Open
Abstract
Peptides are naturally produced by all organisms and exhibit a wide range of physiological, immunomodulatory, and wound healing functions. Furthermore, they can provide with protection against microorganisms and tumor cells. Their multifaceted performance, high selectivity, and reduced toxicity have positioned them as effective therapeutic agents, representing a positive economic impact for pharmaceutical companies. Currently, efforts have been made to invest in the development of new peptides with antimicrobial and anticancer properties, but the poor stability of these molecules in physiological environments has triggered a bottleneck. Therefore, some tools, such as nanotechnology and in silico approaches can be applied as alternatives to try to overcome these obstacles. In silico studies provide a priori knowledge that can lead to the development of new anticancer peptides with enhanced biological activity and improved stability. This review focuses on the current status of research in peptides with dual antimicrobial-anticancer activity, including advances in computational biology using in silico analyses as a powerful tool for the study and rational design of these types of peptides.
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Affiliation(s)
- Yamil Liscano
- Research Group of Chemical and Biotechnology, Faculty of Basic Sciences, Universidad Santiago de Cali, 760035 Cali, Colombia;
- Research Group of Genetics, Regeneration and Cancer, Institute of Biology, Universidad de Antioquia, 050010 Medellin, Colombia;
| | - Jose Oñate-Garzón
- Research Group of Chemical and Biotechnology, Faculty of Basic Sciences, Universidad Santiago de Cali, 760035 Cali, Colombia;
| | - Jean Paul Delgado
- Research Group of Genetics, Regeneration and Cancer, Institute of Biology, Universidad de Antioquia, 050010 Medellin, Colombia;
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de Souza C, Carvalho JA, Abreu AS, de Paiva LP, Ambrósio JAR, Junior MB, de Oliveira MA, Mittmann J, Simioni AR. Polyelectrolytic gelatin nanoparticles as a drug delivery system for the promastigote form of Leishmania amazonensis treatment. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 32:1-21. [PMID: 32847485 DOI: 10.1080/09205063.2020.1815495] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this study, phthalocianato[bis(dimethylaminoethanoxy)] silicon (NzPC) was loaded onto gelatin nanoparticles functionalized with polyelectrolytes (polystyrene sulfonate/polyallylamine hydrochloride) by layer-by-layer (LbL) assembly for photodynamic therapy (PDT) application in promastigote form of Leishmania amazonensis treatment. The process yield, and encapsulation efficiency were 80.0% ± 1.8 and EE = 87.0% ± 1.1, respectively. The polyelectrolytic gelatin nanoparticles (PGN) had a mean diameter of 437.4 ± 72.85 nm, narrow distribution size with a polydispersity index of 0.086. The obvious switching of zeta potential indicates successful alternating deposition of the polyanion PSS and polycation PAH directly on the gelatin nanoparticles. Photosensitizer photophysical properties were shown to be preserved after gelatin nanoparticle encapsulation. The impact of the PDT in the viability and morphology of Leishmania amazonensis promastigote in culture medium was evaluated. The PGN-NzPc presented low toxicity at the dark and the PDT was capable of decreasing the viability in more than 80% in 0.1 µmol.L-1 concentration tested. The PDT also triggered significant morphological alterations in the Leishmania promastigotes. These results reinforce the idea that the use of PGN as photosensitizers carriers is useful for PDT of Leishmania promastigotes.
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Affiliation(s)
- Catarina de Souza
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, SP, Brazil
| | - Janicy A Carvalho
- Departament of Chemistry, Center of Nanotechnology and Tissue Engineering- Photobiology and Photomedicine (CNET), University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Alexandro S Abreu
- Departament of Chemistry, Center of Nanotechnology and Tissue Engineering- Photobiology and Photomedicine (CNET), University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Lucas P de Paiva
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, SP, Brazil
| | - Jéssica A R Ambrósio
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, SP, Brazil
| | - Milton Beltrame Junior
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, SP, Brazil
| | - Marco A de Oliveira
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, SP, Brazil
| | - Josane Mittmann
- Distance Education Coordination, Vila Velha University, Vila Velha, ES, Brazil
| | - Andreza R Simioni
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, SP, Brazil
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