1
|
Hudiyanti D, Al Khafiz MF, Anam K, Siahaan P, Suyati L, Sunarsih S, Christa SM. Prospect of Gum Arabic-Cocoliposome Matrix to Encapsulate Curcumin for Oral Administration. Polymers (Basel) 2024; 16:944. [PMID: 38611202 PMCID: PMC11013629 DOI: 10.3390/polym16070944] [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: 01/25/2024] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Curcumin is an antioxidant that can effectively eliminate free radicals. However, as its oral bioavailability is low, an effective delivery method is required. Phospholipid-based liposomes can encapsulate lipophilic drugs, such as curcumin, while liposome, cholesterol, and gum Arabic (GA) can enhance the internal and external stability of drug membranes. This present study used concentrations of cholesterol (Cchol) and GA (CGA), ranging from 0 to 10, 20, 30, and 40% as well as 0 to 5, 10, 15, 20, 30, and 40%, respectively, to encapsulate curcumin in a GA-cocoliposome (CCL/GA) matrix and test its efficacy in simulated intestinal fluid (SIF) and simulated gastric fluid (SGF). The absence of new characteristic peaks in the Fourier transform infrared (FTIR) spectra results indicate the presence of non-covalent interactions in the CCL/GA encapsulation. Furthermore, increasing the Cchol decreased the encapsulation efficiency (EE), loading capacity (LC), and antioxidant activity (IR) of the CCL/GA encapsulation but increased its release rate (RR). Conversely, increasing CGA increased its EE and IR but decreased its LC and RR. The two conditions applied confirmed this. Liposomal curcumin had the highest IR in SIF (84.081%) and the highest RR in SGF (0.657 ppm/day). Furthermore, liposomes loaded with 10% Cchol and 20% CGA performed best in SIF, while those loaded with 10% Cchol and 30% CGA performed best in SGF. Lastly, the CCL/GA performed better in SIF than SGF.
Collapse
Affiliation(s)
- Dwi Hudiyanti
- Department of Chemistry, Faculty of Science and Mathematics, Diponegoro University, Prof. Jacob Rais Street, Semarang 50275, Central Java, Indonesia; (K.A.); (P.S.); (L.S.)
| | - Muhammad Fuad Al Khafiz
- Postgraduate Chemistry Program, Faculty of Science and Mathematics, Diponegoro University, Prof. Jacob Rais Street, Semarang 50275, Central Java, Indonesia;
| | - Khairul Anam
- Department of Chemistry, Faculty of Science and Mathematics, Diponegoro University, Prof. Jacob Rais Street, Semarang 50275, Central Java, Indonesia; (K.A.); (P.S.); (L.S.)
| | - Parsaoran Siahaan
- Department of Chemistry, Faculty of Science and Mathematics, Diponegoro University, Prof. Jacob Rais Street, Semarang 50275, Central Java, Indonesia; (K.A.); (P.S.); (L.S.)
| | - Linda Suyati
- Department of Chemistry, Faculty of Science and Mathematics, Diponegoro University, Prof. Jacob Rais Street, Semarang 50275, Central Java, Indonesia; (K.A.); (P.S.); (L.S.)
| | - Sunarsih Sunarsih
- Department of Mathematics, Faculty of Science and Mathematics, Diponegoro University, Prof. Jacob Rais Street, Semarang 50275, Central Java, Indonesia;
| | - Sherllyn Meida Christa
- Chemistry Program, Faculty of Science and Mathematics, Diponegoro University, Prof. Jacob Rais Street, Semarang 50275, Central Java, Indonesia;
| |
Collapse
|
2
|
Lopes-Nunes J, Simões P, Moreira D, Leandro K, Nobre RJ, Pereira de Almeida L, Campello MPC, Oliveira MC, Paulo A, Coutinho A, Melo AM, Tomaz C, Cruz C. RNA-based liposomes for oral cancer: From biophysical characterization to biological evaluation. Int J Biol Macromol 2024; 259:129157. [PMID: 38199539 DOI: 10.1016/j.ijbiomac.2023.129157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/28/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024]
Abstract
Oral cancer incidence and mortality are increasing over time. The most common therapies for oral cancers are surgery and radiotherapy, either used alone or combined, and immunotherapy can be also an option. Although there are several therapeutic options, none of them are completely effective, and in addition, there are numerous associated side effects. To overcome these limitations, researchers have been trying to reduce these drawbacks by using drug delivery systems that carry drugs for specific delivery to cancer cells. For that purpose, RNA-coated liposomes to selectively deliver the ligands C8 (acridine orange derivative) and dexamethasone to oral cancer cells were produced, characterized, and biologically evaluated. Firstly, the RNA structure and binding interaction with ligands (C8 and dexamethasone) were evaluated by circular dichroism (CD), thermal difference spectroscopy (TDS), nuclear magnetic resonance (NMR) and fluorescence titrations. The biophysical assays evidenced the formation of an RNA hairpin and duplex structure. Moreover, steady-state and time-resolved fluorescence intensity and anisotropy experiments show that C8 forms a complex with RNA and adopts an open conformation upon RNA binding. Then, RNA-coated liposomes were characterized by dynamic light scattering, and diameters near 160 nm were observed. Time-resolved anisotropy measurements of C8 loaded in RNA-functionalized liposomes indicate the co-existence of free C8 in solution (inside the liposome) and C8 bound to RNA at the external liposome surface. The RNA-functionalized liposomes loaded with C8 or dexamethasone mediated a significant reduction in the cell viability of malignant UPCI-SCC-154 cells while maintaining viable non-malignant NHDF cells. Additionally, the liposomes were able to internalize the cells, with higher uptake by the malignant cell line. Overall, the results obtained in this work can contribute to the development of new drug delivery systems based on RNA-coated liposomes.
Collapse
Affiliation(s)
- Jéssica Lopes-Nunes
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Pedro Simões
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - David Moreira
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Kevin Leandro
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Rui Jorge Nobre
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal; Viral Vectors for Gene Transfer Core Facility, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, 3030-789 16 Coimbra, Portugal
| | - Luís Pereira de Almeida
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal; Viral Vectors for Gene Transfer Core Facility, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
| | - Maria Paula Cabral Campello
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10 (km 139.7), 2695-066 Bobadela, Portugal
| | - Maria Cristina Oliveira
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10 (km 139.7), 2695-066 Bobadela, Portugal
| | - António Paulo
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10 (km 139.7), 2695-066 Bobadela, Portugal; Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10 (km 139.7), 2695-066 Bobadela, Portugal
| | - Ana Coutinho
- iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Dep. Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Ana M Melo
- iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Cândida Tomaz
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal; Departamento de Química, Universidade da Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Carla Cruz
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal; Departamento de Química, Universidade da Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal.
| |
Collapse
|
3
|
López-Iglesias C, Klinger D. Rational Design and Development of Polymeric Nanogels as Protein Carriers. Macromol Biosci 2023; 23:e2300256. [PMID: 37551821 DOI: 10.1002/mabi.202300256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/26/2023] [Indexed: 08/09/2023]
Abstract
Proteins have gained significant attention as potential therapeutic agents owing to their high specificity and reduced toxicity. Nevertheless, their clinical utility is hindered by inherent challenges associated with stability during storage and after in vivo administration. To overcome these limitations, polymeric nanogels (NGs) have emerged as promising carriers. These colloidal systems are capable of efficient encapsulation and stabilization of protein cargoes while improving their bioavailability and targeted delivery. The design of such delivery systems requires a comprehensive understanding of how the synthesis and formulation processes affect the final performance of the protein. This review highlights critical aspects involved in the development of NGs for protein delivery, with specific emphasis on loading strategies and evaluation techniques. For example, factors influencing loading efficiency and release kinetics are discussed, along with strategies to optimize protein encapsulation through protein-carrier interactions to achieve the desired therapeutic outcomes. The discussion is based on recent literature examples and aims to provide valuable insights for researchers working toward the advancement of protein-based therapeutics.
Collapse
Affiliation(s)
- Clara López-Iglesias
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise Straße 2-4, 14195, Berlin, Germany
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma group (GI-1645), Faculty of Pharmacy, Instituto de Materiales (iMATUS) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Campus Vida s/n, Santiago de Compostela, 15782, Spain
| | - Daniel Klinger
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise Straße 2-4, 14195, Berlin, Germany
| |
Collapse
|
4
|
Mangang KN, Thakran P, Halder J, Yadav KS, Ghosh G, Pradhan D, Rath G, Rai VK. PVP-microneedle array for drug delivery: mechanical insight, biodegradation, and recent advances. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 34:986-1017. [PMID: 36541167 DOI: 10.1080/09205063.2022.2155778] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Microneedle arrays are micron-sized needles usually attached to a supporting base or patch facilitated drug delivery for systemic effects. Polyvinylpyrrolidone (PVP) is a lactam polymer containing an internal amide linkage. Because of its versatility and biocompatibility, it has been widely utilized to treat several skin, bone and eye problems. Due to its specific and unique properties, the researchers realize its utility as a polymer of tremendous potential. PVP-based dissolvable microneedles have widely been utilized as a carrier for delivering DNAs, proteins, vitamins, and several biological macromolecules transdermally. However, it does not get biodegraded into the body. Therefore, the presence of its fragments in the body post-treatment needs proper justification. The adequate justification for the fate of the fragment's end products in the body will allow even better utilization of PVP. This review analyses and illustrates various experimental findings to highlight the most recent advancements and applications of PVP microneedles in drug delivery systems and cosmetology and the potential for PVP microneedles in treating dermal and systemic disorders. This review presents the expected mode of PVP biodegradation in aqueous and soil environments as a waste material, its inertness, biocompatibility, and the importance of PVP as a fabricating material, pharmaceutical uses, and non-toxic profile.
Collapse
Affiliation(s)
- Keisham Nelson Mangang
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab, India.,Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida 203201, UP, India
| | - Pragati Thakran
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab, India
| | - Jitu Halder
- School of Pharmaceutical Science, Siksa 'O' Anusandhan University, Bhubaneswar, Odisha, India
| | | | - Goutam Ghosh
- School of Pharmaceutical Science, Siksa 'O' Anusandhan University, Bhubaneswar, Odisha, India
| | - Deepak Pradhan
- School of Pharmaceutical Science, Siksa 'O' Anusandhan University, Bhubaneswar, Odisha, India
| | - Goutam Rath
- School of Pharmaceutical Science, Siksa 'O' Anusandhan University, Bhubaneswar, Odisha, India
| | - Vineet Kumar Rai
- School of Pharmaceutical Science, Siksa 'O' Anusandhan University, Bhubaneswar, Odisha, India
| |
Collapse
|
5
|
Ugorji OL, Umeh ONC, Agubata CO, Adah D, Obitte NC, Chukwu A. The effect of noisome preparation methods in encapsulating 5-fluorouracil and real time cell assay against HCT-116 colon cancer cell line. Heliyon 2022; 8:e12369. [PMID: 36582708 PMCID: PMC9793284 DOI: 10.1016/j.heliyon.2022.e12369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/17/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022] Open
Abstract
The formulation of niosomes is influenced by a number of variables, and these variables may eventually affect the formulation's outcome. One of the elements that can influence the physico-chemical properties of niosomes is the method used in preparation of the formulation. In this study, we established if various methods of preparation have any impact on the prepared vesicles when loaded with 5-fluorouracil. Thereafter, a real-time cell assay (an in vitro cytotoxicity test) against HCT-116 colon cancer cell lines was done on an optimised batch. 5-fluorouracil loaded niosomes were prepared with either Tween 60 or Span 60 by four different methods - namely thin film hydration (TFH), reverse phase evaporation (RPE), evaporation/sonication (EVP/SON), and the ethanol injection method (EIM). In vitro evaluations were done on the formulations, and these included particle size analysis, entrapment efficiency, scanning electron microscopy (SEM), photomicrography, drug release, polydispersity index, and Fourier transform infrared spectroscopy (FTIR). The effects of the preparation method and type of non-ionic surfactants on encapsulation efficiency, particle size, and in vitro drug release of the niosomes at pH 7.4 were evaluated. An in vitro cytotoxicity test (real time cell assay (RTCA)) against HCT-116 cells was carried out using the optimised formulation. Results showed physically stable formulations. The TFH method produced the smallest particle sizes (187 nm and 482 nm), while the EVP/SON method produced the largest particle sizes (4476 nm and 9111 nm). The Tween-based niosomes prepared by TFH or RPE had higher drug entrapment. The FTIR studies of niosomal formulations showed broad peaks at wavenumbers above 3000 cm-1, indicating strong hydrogen bonds. The RTCA showed 5-fluorouracil-loaded niosomes caused more sustained cell death compared to the pure drug and blank niosomes. The methods of preparation affected the particle size, polydispersity index, entrapment efficiency, and the physical stability of the vesicles. The thin film hydration method was more robust in the entrapped 5-fluorouracil and showed lower particle sizes when compared to all the other methods. RTCA showed sustained cell death in real time.
Collapse
Affiliation(s)
- Onyinyechi Lydia Ugorji
- Department of Pharmaceutical Technology and Industrial Pharmacy, University of Nigeria, Nsukka, Nigeria,Corresponding author.
| | | | - Chukwuma Obumneme Agubata
- Department of Pharmaceutical Technology and Industrial Pharmacy, University of Nigeria, Nsukka, Nigeria
| | - Dickson Adah
- Department of Cancer Immunology, Clinical research center Lund University, Malmo, Sweden
| | - Nicholas Chinedu Obitte
- Department of Pharmaceutical Technology and Industrial Pharmacy, University of Nigeria, Nsukka, Nigeria
| | - Amarauche Chukwu
- Department of Pharmaceutical Technology and Industrial Pharmacy, University of Nigeria, Nsukka, Nigeria
| |
Collapse
|
6
|
Żak A, Łazarski G, Wytrwal-Sarna M, Jamróz D, Górniewicz M, Foryś A, Trzebicka B, Kepczynski M. Molecular insights into the self-assembly of hydrophobically modified chondroitin sulfate in aqueous media. Carbohydr Polym 2022; 297:119999. [DOI: 10.1016/j.carbpol.2022.119999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 08/12/2022] [Accepted: 08/14/2022] [Indexed: 11/28/2022]
|
7
|
Duwa R, Pokhrel RH, Banstola A, Pandit M, Shrestha P, Jeong JH, Chang JH, Yook S. T-cell engaging poly(lactic-co-glycolic acid) nanoparticles as a modular platform to induce a potent cytotoxic immunogenic response against PD-L1 overexpressing cancer. Biomaterials 2022; 291:121911. [DOI: 10.1016/j.biomaterials.2022.121911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 10/19/2022] [Accepted: 11/10/2022] [Indexed: 11/15/2022]
|
8
|
Polymeric Nanosystems Applied for Metal-Based Drugs and Photosensitizers Delivery: The State of the Art and Recent Advancements. Pharmaceutics 2022; 14:pharmaceutics14071506. [PMID: 35890401 PMCID: PMC9320085 DOI: 10.3390/pharmaceutics14071506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/03/2022] [Accepted: 07/12/2022] [Indexed: 11/17/2022] Open
Abstract
Nanotechnology-based approaches for targeting the delivery and controlled release of metal-based therapeutic agents have revealed significant potential as tools for enhancing the therapeutic effect of metal-based agents and minimizing their systemic toxicities. In this context, a series of polymer-based nanosized systems designed to physically load or covalently conjugate metal-based therapeutic agents have been remarkably improving their bioavailability and anticancer efficacy. Initially, the polymeric nanocarriers were applied for platinum-based chemotherapeutic agents resulting in some nanoformulations currently in clinical tests and even in medical applications. At present, these nanoassemblies have been slowly expanding for nonplatinum-containing metal-based chemotherapeutic agents. Interestingly, for metal-based photosensitizers (PS) applied in photodynamic therapy (PDT), especially for cancer treatment, strategies employing polymeric nanocarriers have been investigated for almost 30 years. In this review, we address the polymeric nanocarrier-assisted metal-based therapeutics agent delivery systems with a specific focus on non-platinum systems; we explore some biological and physicochemical aspects of the polymer–metallodrug assembly. Finally, we summarize some recent advances in polymeric nanosystems coupled with metal-based compounds that present potential for successful clinical applications as chemotherapeutic or photosensitizing agents. We hope this review can provide a fertile ground for the innovative design of polymeric nanosystems for targeting the delivery and controlled release of metal-containing therapeutic agents.
Collapse
|
9
|
Ren T, Chen J, Qi P, Xiao P, Wang P. Goserelin/PLGA solid dispersion used to prepare long-acting microspheres with reduced initial release and reduced fluctuation of drug serum concentration in vivo. Int J Pharm 2022; 615:121474. [PMID: 35041918 DOI: 10.1016/j.ijpharm.2022.121474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/02/2022] [Accepted: 01/11/2022] [Indexed: 12/19/2022]
Abstract
To prepare Goserelin (GOS) loaded long-acting microspheres with reduced initial release and prolonged drug release time of GOS, GOS/PLGA solid dispersion (by hot-melt extrusion, HME) was dissolved/dispersed in dichloromethane (DCM) to prepare microspheres by O/W method. From results of molecular dynamics simulation, PLGA and GOS molecules completely and uniformly dissolved and dispersed in DCM, respectively. In F5 microspheres (prepared by HME-O/W method), GOS existed as molecular or amorphous state, but not aggregation. Burst release of F5 microspheres (2.75%) was similar with ZoladexTM implant (0.39%) and less than F10 microspheres (prepared by S/O/W method, 25.92%). After lag phase, GOS released rapidly from F5 microspheres and the cumulative release on the 45th days was 95.14%. After injection of F5 microspheres, GOS serum concentration was relative steady at the range of 27.64-175.27 ng/mL for nearly 35 days. AUC(0-35 day) of F5 microspheres was almost 2 times that of F10 microspheres. Pharmacodynamics study also showed potential effect of F5 microspheres on inhibiting the secretion of testosterone in male rats. HME-O/W method is potential to establish long-acting PLGA microspheres (loading water-soluble drug) , exhibiting stable drug serum concentration in vivo, and without large concentration fluctuation or serious pain/side effects.
Collapse
Affiliation(s)
- Tianyang Ren
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Jin Chen
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, PR of China
| | - Pan Qi
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, PR of China
| | - Peifu Xiao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, PR of China
| | - Puxiu Wang
- Department of Pharmacy, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China.
| |
Collapse
|
10
|
Effect of the Carrier on the Coprecipitation of Curcumin through Supercritical-Assisted Atomization. CHEMENGINEERING 2021. [DOI: 10.3390/chemengineering5030059] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this paper, composite systems containing curcumin (CUR) were prepared through supercritical-assisted atomization (SAA), using different carriers. Curcumin is particularly interesting in the pharmaceutical and nutraceutical fields for its antioxidant, antitumoral, and anti-inflammatory properties. However, its therapeutic effect on human health is restricted by its poor water solubility and low dissolution rate, limiting its absorption after its oral administration. To increase the dissolution rate and then the bioavailability of the active compound, CUR was coprecipitated with polymeric, i.e., polyvinylpyrrolidone (PVP) and dextran (DXT), and not polymeric, i.e., hydroxypropyl-β-cyclodextrin (HP-β-CD), carriers. The effects of some operating parameters, namely the concentration of solutes in solution and the active compound/carrier ratio, on the morphology and the particle size distribution of the powders were investigated. Submicrometric particles were produced with all the carriers. Under the best operating conditions, the mean diameters ± standard deviation were equal to 0.69 ± 0.20 μm, 0.40 ± 0.13 μm, and 0.81 ± 0.25 μm for PVP/CUR, DXT/CUR, and HP-β-CD/CUR, respectively. CUR dissolution rates from coprecipitated particles were significantly increased in the case of all the carriers. Therefore, the results are exciting from a pharmaceutical and nutraceutical point of view, to produce supplements containing curcumin, but assuring a high dissolution rate and bioavailability and, consequently, a more effective therapeutic effect.
Collapse
|
11
|
Zatorska-Płachta M, Łazarski G, Maziarz U, Foryś A, Trzebicka B, Wnuk D, Chołuj K, Karewicz A, Michalik M, Jamróz D, Kepczynski M. Encapsulation of Curcumin in Polystyrene-Based Nanoparticles-Drug Loading Capacity and Cytotoxicity. ACS OMEGA 2021; 6:12168-12178. [PMID: 34056370 PMCID: PMC8154162 DOI: 10.1021/acsomega.1c00867] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 04/20/2021] [Indexed: 05/03/2023]
Abstract
Nanoparticles made of amphiphilic block copolymers are commonly used in the preparation of nano-sized drug delivery systems. Poly(styrene)-block -poly(acrylic acid) (PS-PAA) copolymers have been proposed for drug delivery purposes; however, the drug loading capacity and cytotoxicity of PS-PAA nanoparticles are still not fully recognized. Herein, we investigated the accumulation of a model hydrophobic drug, curcumin, and its spatial distribution inside the PS-PAA nanoparticles. Experimental methods and atomistic molecular dynamics simulations were used to understand the molecular structure of the PS core and how curcumin molecules interact and organize within the PS matrix. The hydrophobic core of the PS-PAA nanoparticles consists of adhering individually coiled polymeric chains and is compact enough to prevent post-incorporation of curcumin. However, the drug has a good affinity for the PS matrix and can be efficiently enclosed in the PS-PAA nanoparticles at the formation stage. At low concentrations, curcumin is evenly distributed in the PS core, while its aggregates were observed above ca. 2 wt %. The nanoparticles were found to have relatively low cytotoxicity to human skin fibroblasts, and the presence of curcumin further increased their biocompatibility. Our work provides a detailed description of the interactions between a hydrophobic drug and PS-PAA nanoparticles and information on the biocompatibility of these anionic nanostructures which may be relevant to the development of amphiphilic copolymer-based drug delivery systems.
Collapse
Affiliation(s)
| | - Grzegorz Łazarski
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
| | - Urszula Maziarz
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
| | - Aleksander Foryś
- Centre
of Polymer and Carbon Materials, Polish
Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze 41-819, Poland
| | - Barbara Trzebicka
- Centre
of Polymer and Carbon Materials, Polish
Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze 41-819, Poland
| | - Dawid Wnuk
- Department
of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, Kraków 30-387, Poland
| | - Karolina Chołuj
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
| | - Anna Karewicz
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
| | - Marta Michalik
- Department
of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, Kraków 30-387, Poland
| | - Dorota Jamróz
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
- . Phone: +48 12 6862529
| | - Mariusz Kepczynski
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
- . Phone: +48 12 6862532
| |
Collapse
|