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Jogdeo CM, Siddhanta K, Das A, Ding L, Panja S, Kumari N, Oupický D. Beyond Lipids: Exploring Advances in Polymeric Gene Delivery in the Lipid Nanoparticles Era. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2404608. [PMID: 38842816 DOI: 10.1002/adma.202404608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/23/2024] [Indexed: 06/07/2024]
Abstract
The recent success of gene therapy during the COVID-19 pandemic has underscored the importance of effective and safe delivery systems. Complementing lipid-based delivery systems, polymers present a promising alternative for gene delivery. Significant advances have been made in the recent past, with multiple clinical trials progressing beyond phase I and several companies actively working on polymeric delivery systems which provides assurance that polymeric carriers can soon achieve clinical translation. The massive advantage of structural tunability and vast chemical space of polymers is being actively leveraged to mitigate shortcomings of traditional polycationic polymers and improve the translatability of delivery systems. Tailored polymeric approaches for diverse nucleic acids and for specific subcellular targets are now being designed to improve therapeutic efficacy. This review describes the recent advances in polymer design for improved gene delivery by polyplexes and covalent polymer-nucleic acid conjugates. The review also offers a brief note on novel computational techniques for improved polymer design. The review concludes with an overview of the current state of polymeric gene therapies in the clinic as well as future directions on their translation to the clinic.
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Affiliation(s)
- Chinmay M Jogdeo
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Kasturi Siddhanta
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ashish Das
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ling Ding
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Sudipta Panja
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Neha Kumari
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - David Oupický
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68198, USA
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Kuang F, Hui T, Chen Y, Qiu M, Gao X. Post-Graphene 2D Materials: Structures, Properties, and Cancer Therapy Applications. Adv Healthc Mater 2024; 13:e2302604. [PMID: 37955406 DOI: 10.1002/adhm.202302604] [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: 08/09/2023] [Revised: 10/26/2023] [Indexed: 11/14/2023]
Abstract
Cancer is one of the most serious diseases challenging human health and life span. Cancer has claimed millions of lives worldwide. Early diagnosis and effective treatment of cancer are very important for the survival of patients. In recent years, 2D nanomaterials have shown great potential in the development of anticancer treatment by combining their inherent physicochemical properties after surface modification. 2D nanomaterials have attracted great interest due to their unique nanosheet structure, large surface area, and extraordinary physicochemical properties. This article reviews the advantages and application status of emerging 2D nanomaterials for targeted tumor synergistic therapy compared with traditional therapeutic strategies. In order to investigate novel potential anticancer strategies, this paper focuses on the surface modification, cargo delivery capability, and unique optical properties of emerging 2D nanomaterials. Finally, the current problems and challenges in cancer treatment are summarized and prospected.
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Affiliation(s)
- Fei Kuang
- College of Life Sciences, Qingdao University, No.308 Ningxia Road, Qingdao, Shandong, 266071, China
| | - Tiankun Hui
- Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China), Ministry of Education, Qingdao, 266100, P. R. China
| | - Yingjie Chen
- Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China), Ministry of Education, Qingdao, 266100, P. R. China
| | - Meng Qiu
- Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China), Ministry of Education, Qingdao, 266100, P. R. China
| | - Xiang Gao
- College of Life Sciences, Qingdao University, No.308 Ningxia Road, Qingdao, Shandong, 266071, China
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Tomara M, Selianitis D, Pispas S. Dual-Responsive Amphiphilic P(DMAEMA-co-LMA-co-OEGMA) Terpolymer Nano-Assemblies in Aqueous Media. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12213791. [PMID: 36364568 PMCID: PMC9659099 DOI: 10.3390/nano12213791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/04/2022] [Accepted: 10/24/2022] [Indexed: 06/12/2023]
Abstract
This work reports on the synthesis and self-assembly of a novel series of dual-responsive poly[2-(dimethylamino)ethylmethacrylate-co-laurylmethacrylate-co-(oligoethyleneglycol)methacrylate], P(DMAEMA-co-LMA-co-OEGMA)statistical terpolymers in aqueous solutions. Five P(DMAEMA-co-LMA-co-OEGMA) amphiphilic terpolymers, having different content of the three monomers, were synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. The success of the synthesis was confirmed by the molecular characterization of the terpolymers via size exclusion chromatography (SEC) for the determination of molecular weights and the molecular weight distributions. By using nuclear magnetic resonance (1H-NMR) and Fourier-transform infrared (FTIR) spectroscopy, it was possible to determine the exact composition of the terpolymers. Dynamic light scattering (DLS) and fluorescence spectroscopy (FS) indicated the formation of P(DMAEMA-co-LMA-co-OEGMA) unimolecular or multichain aggregates in aqueous solutions, as a response to pH, temperature and ionic strength changes, with their dimensions being largely affected. The amphiphilic terpolymers were able to encapsulate the hydrophobic drug curcumin (CUR) and demonstrate stability to fetal bovine serum (FBS) solutions. These terpolymer aggregates were studied by DLS, FS and UV-Vis, and it was found that they may have been used as potential nanocarriers for drug delivery and bio-imaging applications.
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Salama AH, Abouelatta SM. Optimized copolymeric microstructured platforms for smart controlled delivery of an anticoagulant drug: Preparation, in vitro assessment and crossover study in healthy adult human volunteers. Int J Pharm 2021; 608:121084. [PMID: 34508842 DOI: 10.1016/j.ijpharm.2021.121084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/05/2021] [Accepted: 09/06/2021] [Indexed: 01/05/2023]
Abstract
In the present study, novel micro-structured copolymeric carriers were developed based on the grafting technology where acrylamide was chemically crosslinked with different types of Eudragits® (NE30D, L100, RL30D, or RS30D) based on a 41*21 factorial design. The designed systems efficiently engulfed the anticoagulant drug dipyridamole (DIP), within their formed entangled mesh of crosslinked polymeric network. An optimized formulation, ECOP4 with a desirability-value of 0.706, (in which DIP is engulfed within a copolymeric network of acrylamide and Eudragit® RS30D) showed high engulfment capacity (97.13 ± 1.34%) and controlled DIP release over 8 h. FTIR studies revealed absence of interactions between DIP and the formed copolymer. ECOP4 was further inserted within an easily-administered safe raft forming system composed of a mixture of LM-pectin and gellan gum. A pharmacokinetic study was performed using human volunteers to determine DIP concentration in their plasma after administering the designed formulation using the high-performance liquid chromatography (HPLC) method. A crossover design was adopted comparing the designed formulation with Persantin® 25 mg tablets as a reference standard. Superior results were obtained for the optimized formulation regarding the measured pharmacokinetic parameters (AUC0-24h, Cmax, and Tmax) with a 2.31 fold increase in relative bioavailability, which reveals the usefulness of the designed grafted dipyridamole formulation in site-specific delivery system.
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Affiliation(s)
- Alaa H Salama
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ahram Canadian University, 6(th) of October City, Cairo, Egypt; Pharmaceutical Technology Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, Dokki, Cairo 12622, Egypt.
| | - Samar M Abouelatta
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ahram Canadian University, 6(th) of October City, Cairo, Egypt
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Sun X, Veeraraghavan VP, Surapaneni KM, Hussain S, Mathanmohun M, Alharbi SA, Aladresi AAM, Chinnathambi A. Eugenol-piperine loaded polyhydroxy butyrate/polyethylene glycol nanocomposite-induced apoptosis and cell death in nasopharyngeal cancer (C666-1) cells through the inhibition of the PI3K/AKT/mTOR signaling pathway. J Biochem Mol Toxicol 2021; 35:e22700. [PMID: 33421271 DOI: 10.1002/jbt.22700] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/27/2020] [Accepted: 11/16/2020] [Indexed: 11/07/2022]
Abstract
Nasopharyngeal cancer is a malignancy developing from the nasopharynx epithelium due to smoking and nitrosamine-containing foods. Nasopharyngeal cancer is highly endemic to Southeast Asia. Eugenol and piperine have shown many anticancer activities on numerous cancer types, like colon, lung, liver, and breast cancer. In this study, we amalgamated eugenol and piperine loaded with a polyhydroxy butyrate/polyethylene glycol nanocomposite (Eu-Pi/PHB-PEG-NC) for better anticancer results against nasopharyngeal cancer (C666-1) cells. In the current study, nasopharyngeal cancer cell lines C666-1 were utilized to appraise the cytotoxic potential of Eug-Pip-PEG-NC on cell propagation, programmed cell death, and relocation. Eu-Pi/PHB-PEG-NC inhibits cellular proliferation on C666-1 cells in a dose-dependent manner, and when compared with 20 µg/ml, 15 µg/ml of loaded mixture evidently restrained the passage aptitude of C666-1 cells, this was attended with a downregulated expression of mitochondrial membrane potential. Treatment with 15 µg/ml Eu-Pi/PHB-PEG-NC suggestively amplified cell apoptosis in the C666-1 cells. Furthermore, its cleaved caspase-3, 8, and 9 and Bax gene expression was augmented and Bcl-2 gene expression was diminished after Eu-Pi/PHB-PEG-NC treatment. Additionally, our data established that the collective effect of Eu-Pi/PHB-PEG-NC loaded micelles inhibited the expansion of C666-1 cells augmented apoptosis connected with the intrusion of PI3K/Akt/mTOR signaling pathway.
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Affiliation(s)
- Xiaopeng Sun
- Department of Surgery, Faculty of Medicine, Xi'an Jiaotong University, Xi'an, China.,Department of Otolaryngology, Second Affiliated Hospital of Xi'an Medical College, Xi'an, China
| | - Vishnu Priya Veeraraghavan
- Department of Biochemistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Krishna Mohan Surapaneni
- Departments of Biochemistry, Clinical Skills & Simulation, Research, Panimalar Medical College Hospital & Research Institute, Varadharajapuram, Poonamallee, Chennai, Tamilnadu, India
| | - Sardar Hussain
- Department of Biotechnology, Government Science College, Chitradurga, Karnataka, India
| | - Maghimaa Mathanmohun
- Department of Microbiology, Muthayammal College of Arts & Science, Rasipuram, Namakkal, Tamilnadu, India
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
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Khodaei M, Rostamizadeh K, Taromchi AH, Monirinasab H, Fathi M. DDAB cationic lipid-mPEG, PCL copolymer hybrid nano-carrier synthesis and application for delivery of siRNA targeting IGF-1R into breast cancer cells. Clin Transl Oncol 2021; 23:1167-1178. [PMID: 33389648 DOI: 10.1007/s12094-020-02507-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 09/28/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVE To use siRNA molecule as a therapeutic agent in gene silencing, an efficient delivery system is necessary. Stability and clearance by reticuloendothelial of siRNA still remains the major challenges for clinical application. Herein, we could develop new lipid-polymer hybrid nanoparticles (LPHNP) as a siRNA carrier to silence insulin-like growth factor type I (IGF-1R) gene overexpression in MCF-7 human breast cancer cell line. METHODS Dimethyldioctadecylammonium bromide-methoxy poly(ethylene glycol)-poly (ε-caprolactone) (DDAB-mPEG-PCL) LPHNPs were synthesized using a single step nanoprecipitation method and characterized by dynamic light scattering (DLS) and atomic force microscopy (AFM) microscope. Cytotoxicity of the nanoparticles was assessed in the MCF7 cell line using 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Desired LPHNP-siRNA complex was determined using different Nitrogen:Phosphate ratio (N/P) ratios and gel retardation. To determine the encapsulation efficiency of siRNA (%) in LPHNP, its absorbance was measured. The effect of the siRNA-LPHNP complex on IGF-1R silencing was assessed by reverse transcription-polymerase chain reaction (RT-PCR) RESULTS: LPHNP was synthesized using a single-step sonication method with a size below 100 nM. The viability of cells treated with hybrid nanoparticles was significantly greater than the corresponding cationic lipid (P < 0.01). As demonstrated by gel retardation assay, efficient siRNA binding to LPHNP occurred at N/P equal to 40 and siRNA encapsulation efficiency was found to be 95% ± 4 at this ratio. LPHNP-IGF-1R siRNA complex could be able to down-regulate the target more efficiently when it compared with the corresponded controls (P < 0.001). CONCLUSION In conclusion, our results suggest that DDAB cationic lipid and mPEG-PCL copolymer hybrid nanoparticle may be a good candidate for efficient siRNA delivery.
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Affiliation(s)
- M Khodaei
- Department of Biotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - K Rostamizadeh
- Department of Medicinal Chemistry, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - A H Taromchi
- Department of Biotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - H Monirinasab
- Department of Clinical Biochemistry, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - M Fathi
- Department of Clinical Biochemistry, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran. .,Cancer Gene Therapy Research Center, Zanjan University of Medical Sciences, Zanjan, Iran.
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Morgan TE, Kerr A, Wootton CA, Barrow MP, Bristow AW, Perrier S, O’Connor PB. Electron Capture Dissociation of Trithiocarbonate-Terminated Acrylamide Homo- and Copolymers: A Terminus-Directed Mechanism? Anal Chem 2020; 92:12852-12859. [DOI: 10.1021/acs.analchem.0c01224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Tomos E. Morgan
- Department of Chemistry, University of Warwick, Coventry, Midlands CV4 7AL, U.K
| | - Andrew Kerr
- Department of Chemistry, University of Warwick, Coventry, Midlands CV4 7AL, U.K
| | | | - Mark P. Barrow
- Department of Chemistry, University of Warwick, Coventry, Midlands CV4 7AL, U.K
| | - Anthony W.T. Bristow
- Chemical Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield, Cheshire SK10 2NA, U.K
| | - Sébastien Perrier
- Department of Chemistry, University of Warwick, Coventry, Midlands CV4 7AL, U.K
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, U.K
- Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Peter B. O’Connor
- Department of Chemistry, University of Warwick, Coventry, Midlands CV4 7AL, U.K
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Zhang H, Fan T, Chen W, Li Y, Wang B. Recent advances of two-dimensional materials in smart drug delivery nano-systems. Bioact Mater 2020; 5:1071-1086. [PMID: 32695937 PMCID: PMC7363990 DOI: 10.1016/j.bioactmat.2020.06.012] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 06/10/2020] [Accepted: 06/20/2020] [Indexed: 01/08/2023] Open
Abstract
Smart drug delivery nano-systems show significant changes in their physical or chemical properties in response to slight change in environmental physical and/or chemical signals, and further releasing drugs adjusted to the progression of the disease at the right target and rate intelligently. Two-dimensional materials possess dramatic status extend all over various scientific and technological disciplines by reason of their exceptional unique properties in application of smart drug delivery nano-systems. In this review, we summarized current progress to highlight various kinds of two-dimensional materials drug carriers which are widely explored in smart drug delivery systems as well as classification of stimuli responsive two-dimensional materials and the advantages and disadvantages of their applications. Consequently, we anticipate that this review might inspire the development of new two-dimensional materials with smart drug delivery systems, and deepen researchers' understanding of smart nano-carries based on two-dimensional materials.
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Affiliation(s)
- Hua Zhang
- Key Laboratory of Xinjiang Phytomedicine Resources and Utilization of Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, 832000, China
| | - Taojian Fan
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics, Collaborative Innovation Center for Optoelectronic Science &Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Shenzhen University, Shenzhen, 518060, China
| | - Wen Chen
- Key Laboratory of Xinjiang Phytomedicine Resources and Utilization of Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, 832000, China
| | - Yingchun Li
- Key Laboratory of Xinjiang Phytomedicine Resources and Utilization of Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, 832000, China
| | - Bing Wang
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics, Collaborative Innovation Center for Optoelectronic Science &Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Shenzhen University, Shenzhen, 518060, China
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Trinh Che L, Hiorth M, Hoogenboom R, Kjøniksen AL. Complex Temperature and Concentration Dependent Self-Assembly of Poly(2-oxazoline) Block Copolymers. Polymers (Basel) 2020; 12:polym12071495. [PMID: 32635506 PMCID: PMC7407653 DOI: 10.3390/polym12071495] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/24/2020] [Accepted: 06/26/2020] [Indexed: 11/17/2022] Open
Abstract
The effect of polymer concentration on the temperature-induced self-association of a block copolymer comprising a poly(2-ethyl-2-oxazoline) block and a random copolymer block consisting of 2-ethyl-2-oxazoline and 2-n-propyl-2-oxazoline (PEtO80-block-P(EtOxx-stat-PropO40-x) with x = 0, 4, or 8 were investigated by dynamic light scattering (DLS) and transmittance measurements (turbidimetry). The polymers reveal a complex aggregation behavior with up to three relaxation modes in the DLS data and with a transmittance that first goes through a minimum before it declines at high temperatures. At low temperatures, unassociated polymer chains were found to co-exist with larger aggregates. As the temperature is increased, enhanced association and contraction of the aggregates results in a drop of the transmittance values. The aggregates fragment into smaller micellar-like clusters when the temperature is raised further, causing the samples to become optically clear again. At high temperatures, the polymers aggregate into large compact clusters, and the samples become turbid. Interestingly, very large aggregates were observed at low temperatures when the polymer concentrations were low. The formation of these aggregates was also promoted by a more hydrophilic copolymer structure. The formation of large aggregates with an open structure at conditions where the solvent conditions are improved is probably caused by depletion flocculation of the smaller aggregates.
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Affiliation(s)
- Loan Trinh Che
- Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, 0315 Oslo, Norway;
| | - Marianne Hiorth
- Department of Pharmacy, School of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, 0316 Oslo, Norway;
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
- Correspondence: (R.H.); (A.-L.K.)
| | - Anna-Lena Kjøniksen
- Faculty of Engineering, Østfold University College, P.O. Box 700, 1757 Halden, Norway
- Correspondence: (R.H.); (A.-L.K.)
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Gaber M, Elhasany KA, Sabra S, Helmy MW, Fang JY, Khattab SN, Bekhit AA, Teleb M, Elkodairy KA, Elzoghby AO. Co-Administration of Tretinoin Enhances the Anti-Cancer Efficacy of Etoposide via Tumor-Targeted Green Nano-Micelles. Colloids Surf B Biointerfaces 2020; 192:110997. [PMID: 32361378 DOI: 10.1016/j.colsurfb.2020.110997] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 02/20/2020] [Accepted: 03/24/2020] [Indexed: 12/29/2022]
Abstract
Herein we report promoted anti-cancer activity via a combination strategy of synergistic chemotherapy/retinoid-based breast cancer therapy with shell-stabilized micellar green nanomedicine. Amphiphilic zein-chondroitin sulfate (ChS)-based copolymeric micelles (PMs) were successfully developed via carbodiimide coupling for concomitant delivery of etoposide (ETP) and all-trans retinoic acid (ATRA) to breast cancer. The micelles exhibited low critical micellar concentration (CMC) of 0.008 mg/mL with high encapsulation efficiencies of ETP and ATRA (61.2 and 84.29%, respectively). Calcium-mediated crosslinking of the anionic ChS micellar shell resulted in prolonged drug release with small micellar size of 222.7 nm. The micelles exhibited augmented internalization into MCF-7 breast cancer cells by virtue of ChS binding affinity to CD44 receptors overexpressed by cancer cells. Consequently, the ETP/ATRA-loaded micelles exhibited synergistic cytotoxicity against breast cancer cells as revealed by their significantly lower IC50, combination index (CI), and higherdose reduction index (DRI) in comparison to the free ETP and free ATRA or their combination. Micelles displayed superiority in reducing tumor volume, decreasing proliferation, and promoting necrosis in mice bearing Ehrlich Ascites Tumor (EAT) upon comparison to free ETP and free ATRA or their combination. Overall, the developed green zein-ChS micelles offer a promising platform for tumor-targeted delivery of hydrophobic therapeutic agents.
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Affiliation(s)
- Mohamed Gaber
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA; Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Kholod A Elhasany
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Saly Sabra
- Department of Biotechnology, Institute of Graduate Studies and Research, Alexandria University, Alexandria, 21526, Egypt
| | - Maged W Helmy
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhur University, Damanhur, Egypt
| | - Jia-You Fang
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Taoyuan, 333, Taiwan; Research Center for Industry of Human Ecology, Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, 333, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Kweishan, Taoyuan, 333, Taiwan
| | - Sherine N Khattab
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, 21321, Egypt.
| | - Adnan A Bekhit
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Mohamed Teleb
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Biotechnology, Institute of Graduate Studies and Research, Alexandria University, Alexandria, 21526, Egypt
| | - Kadria A Elkodairy
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Ahmed O Elzoghby
- Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA; Harvard-MIT Division of Health Sciences & Technology (HST), Cambridge, MA 02139, USA.
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11
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Lim JW, Na W, Kim HO, Yeom M, Kang A, Park G, Park C, Ki J, Lee S, Jung B, Jeong HH, Park D, Song D, Haam S. Co-delivery of antigens and immunostimulants via a polymersome for improvement of antigen-specific immune response. J Mater Chem B 2020; 8:5620-5626. [DOI: 10.1039/d0tb00892c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Bilayer spherical polymersome based adjuvants promote the antigen cellular uptake into antigen-presenting cells. The administration of polymersome loading OVA and MPLA induce the secretion of cytokines by macrophage activation and elicit potent antigen-specific antibody responses.
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Holm R, Douverne M, Weber B, Bauer T, Best A, Ahlers P, Koynov K, Besenius P, Barz M. Impact of Branching on the Solution Behavior and Serum Stability of Starlike Block Copolymers. Biomacromolecules 2018; 20:375-388. [DOI: 10.1021/acs.biomac.8b01545] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Regina Holm
- Institute of Organic Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Marcel Douverne
- Institute of Organic Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Benjamin Weber
- Institute of Organic Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Tobias Bauer
- Institute of Organic Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Andreas Best
- Max Planck Institute
for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Patrick Ahlers
- Institute of Organic Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Kaloian Koynov
- Max Planck Institute
for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Pol Besenius
- Institute of Organic Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Matthias Barz
- Institute of Organic Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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Bravo-Anaya LM, Gómez GL, Figueroa-Ochoa E, Ramos FC, Armando Soltero Martínez JF, Rharbi Y. Exchange dynamics between amphiphilic block copolymers and lipidic membranes through hydrophobic pyrene probe transfer. RSC Adv 2018; 8:39444-39454. [PMID: 35558027 PMCID: PMC9091295 DOI: 10.1039/c8ra08903e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 11/22/2018] [Indexed: 11/21/2022] Open
Abstract
Vectorization has experienced significant development over the last few years and has been used to control the distribution of active ingredients to a target by their association with a vector. However, controlled drug delivery suffers from "burst release" as the drugs are released before the targeted site. Very few studies have examined the collective mechanisms of fission-fusion on micelles in the transport and expulsion of active ingredients. Endocytosis and exocytosis of cells are examples of fusion and fission in biological matter. Understanding these dynamics becomes crucial for the design and the control of new materials and new processes effective in controlled drug delivery. In this work, a study of the exchange dynamics between amphiphilic block copolymers and lipid membranes for vectorization of hydrophobic molecules using a fluorescence technique is presented. A highly hydrophobic alkylated pyrene, PyC18, is used as a fluorescent probe that can be exchanged between amphiphilic block copolymer micelles and liposomes via different mechanisms. It is demonstrated that the exchange dynamics evaluated for different liposome concentrations is a collective mechanism characterized by having two rate constants.
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Affiliation(s)
- Lourdes Mónica Bravo-Anaya
- Univ. Grenoble Alpes, LRP F-38000 Grenoble France .,CNRS, LRP F-38000 Grenoble France.,Universidad de Guadalajara, Departamento de Ingeniería Química Blvd. M. García Barragán #1451 C.P. 44430 Guadalajara Jalisco Mexico
| | - Gabriel Landazuri Gómez
- Universidad de Guadalajara, Departamento de Ingeniería Química Blvd. M. García Barragán #1451 C.P. 44430 Guadalajara Jalisco Mexico
| | - Edgar Figueroa-Ochoa
- Universidad de Guadalajara, Departamento de Química Blvd. M. García Barragán #1451 C.P. 44430 Guadalajara Jalisco Mexico
| | - Francisco Carvajal Ramos
- Universidad de Guadalajara, CUTonalá, Departamento de Ingenierías Nuevo Periférico #555 Ejido San José Tatepozco C.P. 45425 Tonalá Jalisco Mexico
| | - J Félix Armando Soltero Martínez
- Universidad de Guadalajara, Departamento de Ingeniería Química Blvd. M. García Barragán #1451 C.P. 44430 Guadalajara Jalisco Mexico
| | - Yahya Rharbi
- Univ. Grenoble Alpes, LRP F-38000 Grenoble France .,CNRS, LRP F-38000 Grenoble France
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Barouti G, Jaffredo CG, Guillaume SM. Advances in drug delivery systems based on synthetic poly(hydroxybutyrate) (co)polymers. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2017.05.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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15
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Adam V, Vaculovicova M. Capillary electrophoresis and nanomaterials - Part I: Capillary electrophoresis of nanomaterials. Electrophoresis 2017; 38:2389-2404. [DOI: 10.1002/elps.201700097] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/02/2017] [Accepted: 06/22/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Vojtech Adam
- Department of Chemistry and Biochemistry; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Marketa Vaculovicova
- Department of Chemistry and Biochemistry; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
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16
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Gu J, Chen X, Fang X, Sha X. Retro-inverso d-peptide-modified hyaluronic acid/bioreducible hyperbranched poly(amido amine)/pDNA core-shell ternary nanoparticles for the dual-targeted delivery of short hairpin RNA-encoding plasmids. Acta Biomater 2017; 57:156-169. [PMID: 28442415 DOI: 10.1016/j.actbio.2017.04.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 03/29/2017] [Accepted: 04/20/2017] [Indexed: 01/08/2023]
Abstract
The active targeting of gene carriers is a powerful strategy for improving tumour-specific delivery and therapy. Although numerous l-peptide ligands play significant roles in the active targeting of nanomedicine, retro-inverso d-peptides have been explored as targeting ligands due to their superior stability and bioactivity in vivo. In this study, retro-inverso d-peptide (RIF7)-modified hyaluronic acid (HA)/bioreducible hyperbranched poly(amido amine) (RHB)/plasmid DNA (pDNA) ternary nanoparticles were successfully developed using the layer-by-layer method for the CD44-positive tumour-specific delivery of short hairpin RNA (shRNA)-encoding pDNA through the combination of the Anxa1 (tumour vasculature) and CD44 (tumour cell-surface) receptors, which mediated the dual targeting. The potential of these newly designed nanoparticles was evaluated by examining the efficacy of their cellular uptake and transfection in cell monolayers, tumour spheroids, and malignant xenograft animal models. With negligible cytotoxicity, the spherical-shaped RIF7-HA/RHB/pDNA nanoparticles were the direct result of an electrostatic complex that had efficiently targeted CD44-positive tumour delivery, penetration, and cellular uptake in vitro. The nanoparticles showed excellent target-specific gene transfection even in the presence of serum. The in vivo therapeutic effect of RIF7-HA/RHB/pDNA-shRNA nanoparticle-mediated shRNA targeting of the Cyclin gene (shCyclin) was evaluated in tumour-bearing mice. The RIF7-HA/RHB/pDNA-shCyclin nanoparticles significantly increased the survival time of tumour-bearing mice and substantially reduced tumour growth due to their extremely specific tumour-targeting activity. These results suggested that the combination of HA and retro-inverso peptide RIF7 significantly increased the therapeutic effect of pDNA-shCyclin-loaded nanoparticles for CD44-positive tumours. Thus, RIF7-HA-mediated multi-target ternary gene vectors are an efficient and promising strategy for the delivery of pDNA-shRNA in the targeted treatment of malignant and metastatic cancers. STATEMENT OF SIGNIFICANCE Although l-peptide ligands play significant roles in the active targeting of nanomedicine, retro-inverso d-peptides have been explored as targeting ligands due to their superior stability and bioactivity in vivo. Retro-inverso peptide RIF7 was designed as a ligand of Anxa1 receptor. The resultant peptide, RIF7, displayed high binding efficiency within Anxa1 receptor, which is highly expressed tumour vasculature cells and some tumour cells such as B16F10 and U87MG cells. The most important feature of RIF7 is its high stability in the blood, which is suitable and promising for application in vivo. Multifunctional RIF7-HA was then synthesized by conjugating the RIF7 peptide to HA, which was used to modify the surface of RHB/pDNA nanoparticles to prepare RIF7-HA/RHB/pDNA core-shell ternary nanoparticles for the dual-targeted delivery of shRNA-encoding plasmids in vitro and in vivo.
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Affiliation(s)
- Jijin Gu
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China; Laboratory for Drug Delivery and Biomaterials, Faculty of Pharmacy, University of Manitoba, 750 McDermot Ave, Winnipeg, Manitoba R3E 0T5, Canada
| | - Xinyi Chen
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
| | - Xiaoling Fang
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
| | - Xianyi Sha
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China.
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17
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Chen CK, Lin WJ, Hsia Y, Lo LW. Synthesis of Polylactide-Based Core-Shell Interface Cross-Linked Micelles for Anticancer Drug Delivery. Macromol Biosci 2016; 17. [PMID: 27678386 DOI: 10.1002/mabi.201600191] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 08/28/2016] [Indexed: 11/09/2022]
Abstract
Well-defined poly(ethylene glycol)-b-allyl functional polylactide-b-polylactides (PEG-APLA-PLAs) are synthesized through sequential ring-opening polymerization. PEG-APLA-PLAs that have amphiphilic properties and reactive allyl side chains on their intermediate blocks are successfully transferred to core-shell interface cross-linked micelles (ICMs) by micellization and UV-initiated irradiation. ICMs have demonstrated enhanced colloidal stability in physiological-mimicking media. Hydrophobic molecules such as Nile Red or doxorubicin (Dox) are readily loaded into ICMs; the resulting drug-ICM formulations possess slow and sustained drug release profiles under physiological-mimicking conditions. ICMs exhibit negligible cytotoxicity in human uterine sarcoma cancer cells by using biodegradable aliphatic polyester as the hydrophobic segments. Relative to free Dox, Dox-loaded ICMs show a reduced cytotoxicity due to the late intracellular release of Dox from ICMs. Overall, ICMs represent a new type of biodegradable cross-linked micelle and can be employed as a promising platform for delivering a broad variety of hydrophobic drugs.
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Affiliation(s)
- Chih-Kuang Chen
- Polymeric Biomaterial Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung, 40724, Taiwan
| | - Wei-Jen Lin
- Polymeric Biomaterial Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung, 40724, Taiwan
| | - Yu Hsia
- Institute of Biotechnology, National Tsing Hua University, Hsinchu, 30013, Taiwan.,Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan, 35053, Taiwan
| | - Leu-Wei Lo
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan, 35053, Taiwan
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18
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Nguyen DH, Lee JS, Bae JW, Choi JH, Lee Y, Son JY, Park KD. Targeted doxorubicin nanotherapy strongly suppressing growth of multidrug resistant tumor in mice. Int J Pharm 2015; 495:329-335. [DOI: 10.1016/j.ijpharm.2015.08.083] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 08/26/2015] [Indexed: 11/16/2022]
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19
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Topete A, Barbosa S, Taboada P. Intelligent micellar polymeric nanocarriers for therapeutics and diagnosis. J Appl Polym Sci 2015. [DOI: 10.1002/app.42650] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Antonio Topete
- Laboratorio de Inmunología, Departamento de Fisiología; Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara; 44340 Guadalajara Jalisco Mexico
| | - Silvia Barbosa
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada; Universidad de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Pablo Taboada
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada; Universidad de Santiago de Compostela; 15782 Santiago de Compostela Spain
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20
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Gody G, Barbey R, Danial M, Perrier S. Ultrafast RAFT polymerization: multiblock copolymers within minutes. Polym Chem 2015. [DOI: 10.1039/c4py01251h] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A remarkably efficient and versatile procedure for the preparation of multiblock copolymers is presented.
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Affiliation(s)
- Guillaume Gody
- Key Centre for Polymers & Colloids
- School of Chemistry
- The University of Sydney
- NSW 2006
- Australia
| | - Raphael Barbey
- Key Centre for Polymers & Colloids
- School of Chemistry
- The University of Sydney
- NSW 2006
- Australia
| | - Maarten Danial
- Key Centre for Polymers & Colloids
- School of Chemistry
- The University of Sydney
- NSW 2006
- Australia
| | - Sébastien Perrier
- Key Centre for Polymers & Colloids
- School of Chemistry
- The University of Sydney
- NSW 2006
- Australia
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21
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Erfani-Moghadam V, Nomani A, Zamani M, Yazdani Y, Najafi F, Sadeghizadeh M. A novel diblock of copolymer of (monomethoxy poly [ethylene glycol]-oleate) with a small hydrophobic fraction to make stable micelles/polymersomes for curcumin delivery to cancer cells. Int J Nanomedicine 2014; 9:5541-54. [PMID: 25489242 PMCID: PMC4257051 DOI: 10.2147/ijn.s63762] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Curcumin is a potent natural anticancer agent, but its effectiveness is limited by properties such as very low solubility, high rate of degradation, and low rate of absorption of its hydrophobic molecules in vivo. To date, various nanocarriers have been used to improve the bioavailability of this hydrophobic biomaterial. This study investigates the encapsulation of curcumin in a novel nanostructure of monomethoxy poly(ethylene glycol)-oleate (mPEG-OA) and its anticancer effect. Tests were done to determine the critical micelle concentration (CMC), encapsulation efficiency, drug-loading efficiency, and cytotoxicity (against U87MG brain carcinoma cells and HFSF-PI3 cells as normal human fibroblasts) of some nanodevice preparations. The results of fluorescence microscopy and cell-cycle analyses indicated that the in vitro bioavailability of the encapsulated curcumin was significantly greater than that of free curcumin. Cytotoxicity evaluations showed that half maximal inhibitory concentrations of free curcumin and curcumin-loaded mPEG-OA for the U87MG cancer cell line were 48 μM and 24 μM, respectively. The Annexin-V-FLUOS assay was used to quantify the apoptotic effect of the prepared nanostructures. Apoptosis induction was observed in a dose-dependent manner after curcumin-loaded mPEG-OA treatments. Two common self-assembling structures, micelles and polymersomes, were observed by atomic force microscopy and dynamic light scattering, and the abundance of each structure was dependent on the concentration of the diblock copolymer. The mPEG-OA micelles had a very low CMC (13.24 μM or 0.03 g/L). Moreover, atomic force microscopy and dynamic light scattering showed that the curcumin-loaded mPEG-OA polymersomes had very stable structures, and at concentrations 1,000 times less than the CMC, at which the micelles disappear, polymersomes were the dominant structures in the dispersion with a reduced size distribution below 150 nm. Overall, the results from these tests revealed that this nanocarrier can be considered as an appropriate drug delivery system for delivering curcumin to cancer cells.
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Affiliation(s)
- Vahid Erfani-Moghadam
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran ; Department of Biotechnology, Faculty of Advanced Medical Technology, Golestan University of Medical Sciences, Gorgan, Iran
| | - Alireza Nomani
- Department of Pharmaceutics, Faculty of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mina Zamani
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Yaghoub Yazdani
- Infectious Diseases Research Center and Laboratory Science Research Center, Golestan University of Medical Sciences, Gorgan, Golestan, Iran
| | - Farhood Najafi
- Department of Resin and Additives, Institute for Color Science and Technology, Tehran, Iran
| | - Majid Sadeghizadeh
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran ; Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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22
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Cordeiro RA, Farinha D, Rocha N, Serra AC, Faneca H, Coelho JFJ. Novel Cationic Triblock Copolymer of Poly[2-(dimethylamino)ethyl methacrylate]-block-poly(β-amino ester)-block-poly[2-(dimethylamino)ethyl methacrylate]: A Promising Non-Viral Gene Delivery System. Macromol Biosci 2014; 15:215-28. [DOI: 10.1002/mabi.201400424] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Indexed: 12/12/2022]
Affiliation(s)
- Rosemeyre A. Cordeiro
- Department of Chemical Engineering; University of Coimbra; Polo II, Rua Sílvio Lima 3030-790 Coimbra Portugal
| | - Dina Farinha
- Center for Neuroscience and Cell Biology; University of Coimbra; 3004-517 Coimbra Portugal
| | - Nuno Rocha
- CEMUC®, Department of Mechanical Engineering; University of Coimbra; Polo II, Rua Luís Reis Santos Pinhal de Marrocos 3030-788 Coimbra Portugal
| | - Arménio C. Serra
- CEMUC®, Department of Mechanical Engineering; University of Coimbra; Polo II, Rua Luís Reis Santos Pinhal de Marrocos 3030-788 Coimbra Portugal
| | - Henrique Faneca
- Center for Neuroscience and Cell Biology; University of Coimbra; 3004-517 Coimbra Portugal
| | - Jorge F. J. Coelho
- CEMUC®, Department of Mechanical Engineering; University of Coimbra; Polo II, Rua Luís Reis Santos Pinhal de Marrocos 3030-788 Coimbra Portugal
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23
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Shahbazi MA, Fernández TD, Mäkilä EM, Le Guével X, Mayorga C, Kaasalainen MH, Salonen JJ, Hirvonen JT, Santos HA. Surface chemistry dependent immunostimulative potential of porous silicon nanoplatforms. Biomaterials 2014; 35:9224-35. [DOI: 10.1016/j.biomaterials.2014.07.050] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 07/23/2014] [Indexed: 02/02/2023]
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24
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Crucho CIC. Stimuli-responsive polymeric nanoparticles for nanomedicine. ChemMedChem 2014; 10:24-38. [PMID: 25319803 DOI: 10.1002/cmdc.201402290] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 09/17/2014] [Indexed: 12/28/2022]
Abstract
Nature continues to be the ultimate in nanotechnology, where polymeric nanometer-scale architectures play a central role in biological systems. Inspired by the way nature forms functional supramolecular assemblies, researchers are trying to make nanostructures and to incorporate these into macrostructures as nature does. Recent advances and progress in nanoscience have demonstrated the great potential that nanomaterials have for applications in healthcare. In the realm of drug delivery, nanomaterials have been used in vivo to protect the drug entity in the systemic circulation, ensuring reproducible absorption of bioactive molecules that do not naturally penetrate biological barriers, restricting drug access to specific target sites. Several building blocks have been used in the formulation of nanoparticles. Thus, stability, drug release, and targeting can be tailored by surface modification. Herein the state of the art of stimuli-responsive polymeric nanoparticles are reviewed. Such systems are able to control drug release by reacting to naturally occurring or external applied stimuli. Special attention is paid to the design and nanoparticle formulation of these so-called smart drug-delivery systems. Future strategies for further developments of a promising controlled drug delivery responsive system are also outlined.
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Affiliation(s)
- Carina I C Crucho
- Department of Chemistry REQUIMTE/CQFB, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica (Portugal).
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25
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Bian J, Hao Y, He J, Zhang W, Zhang M, Ni P. Synthesis and characterization of a biodegradable ABC triblock terpolymer as co-delivery carrier of doxorubicin and DNA. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27361] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jiao Bian
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| | - Ying Hao
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| | - Jinlin He
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| | - Wenling Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| | - Mingzu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| | - Peihong Ni
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
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26
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Shahbazi MA, Almeida PV, Mäkilä EM, Kaasalainen MH, Salonen JJ, Hirvonen JT, Santos HA. Augmented cellular trafficking and endosomal escape of porous silicon nanoparticles via zwitterionic bilayer polymer surface engineering. Biomaterials 2014; 35:7488-500. [DOI: 10.1016/j.biomaterials.2014.05.020] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Accepted: 05/10/2014] [Indexed: 12/11/2022]
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27
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Shahbazi MA, Herranz B, Santos HA. Nanostructured porous Si-based nanoparticles for targeted drug delivery. BIOMATTER 2014; 2:296-312. [PMID: 23507894 PMCID: PMC3568114 DOI: 10.4161/biom.22347] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
One of the backbones in nanomedicine is to deliver drugs specifically to unhealthy cells. Drug nanocarriers can cross physiological barriers and access different tissues, which after proper surface biofunctionalization can enhance cell specificity for cancer therapy. Recent developments have highlighted the potential of mesoporous silica (PSiO2) and silicon (PSi) nanoparticles for targeted drug delivery. In this review, we outline and discuss the most recent advances on the applications and developments of cancer therapies by means of PSiO2 and PSi nanomaterials. Bio-engineering and fine tuning of anti-cancer drug vehicles, high flexibility and potential for sophisticated release mechanisms make these nanostructures promising candidates for “smart” cancer therapies. As a result of their physicochemical properties they can be controllably loaded with large amounts of drugs and coupled to homing molecules to facilitate active targeting. The main emphasis of this review will be on the in vitro and in vivo studies.
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28
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Hehir S, Cameron NR. Recent advances in drug delivery systems based on polypeptides prepared from N
-carboxyanhydrides. POLYM INT 2014. [DOI: 10.1002/pi.4710] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sarah Hehir
- Department of Chemistry and Biophysical Sciences Institute; Durham University; South Road Durham DH1 3LE UK
| | - Neil R Cameron
- Department of Chemistry and Biophysical Sciences Institute; Durham University; South Road Durham DH1 3LE UK
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29
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Affiliation(s)
- Theoni K Georgiou
- Surfactant and Colloid Group, Department of Chemistry; University of Hull; Hull HU6 7RX UK
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30
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Teng W, Huang Z, Chen Y, Wang L, Wang Q, Huang H. pVEGF-loaded lipopolysaccharide-amine nanopolymersomes for therapeutic angiogenesis. NANOTECHNOLOGY 2014; 25:065702. [PMID: 24434195 DOI: 10.1088/0957-4484/25/6/065702] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Therapeutic angiogenesis via gene delivery is promising for tissue survival and regeneration after injury or ischemia. A stable, safe and efficient gene vector is essential for successful angiogenesis. We have demonstrated that our newly developed lipopolysaccharide-amine nanopolymersomes (LNPs) have higher than 95% transfection efficiency when delivering pEGFP into mesenchymal stem cells (MSCs). To explore their clinical potential in therapeutic angiogenesis, in this study, we studied their toxicity, storage stability, protection ability to genes and efficacy to deliver therapeutic genes of pVEGF in MSCs and zebrafish. The results show that LNPs can condense pVEGF to form pVEGF-loaded nanopolymersomes (VNPs), and protect pVEGF against DNase digestion in 6 h. Both LNPs and VNPs have low toxicity to MSCs, erythrocytes and zebrafish embryos. LNPs are stable at 4 °C for at least two years with unchanged size and transfection efficiency. MSCs transfected by VNPs continuously synthesize VEGF for at least four days under control, with a peak (21.25 ng ml(-1)) ∼35-fold greater than that for the untreated group. VNPs induce significant and dose-dependent angiogenesis in zebrafish without causing death, deformity or delay in growth and development, and the induced maximal vessel area of subintestinal vessel plexus is 2.5-fold higher than that for the untreated group. Our study suggests that VNP has high potential in therapeutic angiogenesis.
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Affiliation(s)
- Wei Teng
- Hospital of Stomatology, Institute of Stomatological Research, Guanghua School of Stomatology,Sun Yat-sen University, Guangdong 510600, People's Republic of China
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31
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Shahbazi MA, Almeida PV, Mäkilä E, Correia A, Ferreira MPA, Kaasalainen M, Salonen J, Hirvonen J, Santos HA. Poly(methyl vinyl ether-alt
-maleic acid)-Functionalized Porous Silicon Nanoparticles for Enhanced Stability and Cellular Internalization. Macromol Rapid Commun 2014; 35:624-9. [DOI: 10.1002/marc.201300868] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 12/20/2013] [Indexed: 12/12/2022]
Affiliation(s)
- Mohammad-Ali Shahbazi
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy; University of Helsinki; Fl-00014 Helsinki Finland
| | - Patrick V. Almeida
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy; University of Helsinki; Fl-00014 Helsinki Finland
| | - Ermei Mäkilä
- Laboratory of Industrial Physics, Department of Physics and Astronomy; University of Turku; Fl-20014 Turku Finland
| | - Alexandra Correia
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy; University of Helsinki; Fl-00014 Helsinki Finland
| | - Mónica P. A. Ferreira
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy; University of Helsinki; Fl-00014 Helsinki Finland
| | - Martti Kaasalainen
- Laboratory of Industrial Physics, Department of Physics and Astronomy; University of Turku; Fl-20014 Turku Finland
| | - Jarno Salonen
- Laboratory of Industrial Physics, Department of Physics and Astronomy; University of Turku; Fl-20014 Turku Finland
| | - Jouni Hirvonen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy; University of Helsinki; Fl-00014 Helsinki Finland
| | - Hélder A. Santos
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy; University of Helsinki; Fl-00014 Helsinki Finland
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Noguez Méndez NA, Naranjo Rodríguez EB, Nájera RH, Chávez Castellanos AE. Synthesis of Artificial Membrane of Copolymer (Acrylic Acid/Butyl Acrylate) PAA-PBA for the Design of Polymersomes. INT J POLYM MATER PO 2013. [DOI: 10.1080/00914037.2013.800982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Shahbazi MA, Hamidi M, Mäkilä EM, Zhang H, Almeida PV, Kaasalainen M, Salonen JJ, Hirvonen JT, Santos HA. The mechanisms of surface chemistry effects of mesoporous silicon nanoparticles on immunotoxicity and biocompatibility. Biomaterials 2013; 34:7776-89. [DOI: 10.1016/j.biomaterials.2013.06.052] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 06/26/2013] [Indexed: 01/17/2023]
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Nirmala MJ, Mukherjee A, Chandrasekaran N. Design and formulation technique of a novel drug delivery system for azithromycin and its anti-bacterial activity against Staphylococcus aureus. AAPS PharmSciTech 2013; 14:1045-54. [PMID: 23800858 DOI: 10.1208/s12249-013-9993-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 06/11/2013] [Indexed: 11/30/2022] Open
Abstract
Azithromycin, an important member of the azalide subclass is effective against both Gram-positive and Gram-negative organisms. Certain physicochemical properties of the drug like poor water solubility and relatively low bioavailability of 37% due to incomplete absorption after ingestion, aroused the need for the development of a novel drug delivery system to enhance the solubilization potential and antibacterial activity against Staphylococcus aureus at a very low concentration. Cinnamon oil (Cinnamonum zeylanicum)-based microemulsion system formulated using non-ionic surfactant, Tween 20, and water was characterized. The drug-incorporated system F4 (oil to surfactant ratio of 1:4 (v/v)) showed enhanced solubilization of the drug, droplet diameter of 5-8 nm, and a good thermodynamic stability. The effect of surfactant concentration exhibited a negative correlation with droplet size diameter and turbidity and a positive correlation with stability and viscosity. The system was investigated for its antibacterial activity that demonstrated a significantly higher activity at a minimum concentration (4 μg/ml) of the novel drug-loaded system in comparison with the conventional formulation (128 μg/ml). Examination through scanning electron microscopy analysis further confirmed a considerable morphologic variation due to alteration in the membrane permeability of the microemulsion-treated system. The small droplet size of the microemulsion system and the antibacterial property of cinnamon oil, together, accounts clearly for the enhanced efficacy of the new formulated system F4 and not just azithromycin alone. Staining with acridine orange/ethidium bromide dyes as examined through fluorescence microscopy also substantiated with the results of membrane permeability of bacteria. Thus, our study discloses a potential oral drug delivery system of azithromycin with improved biocompatibility.
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Danafar H, Rostamizadeh K, Davaran S, Hamidi M. PLA-PEG-PLA copolymer-based polymersomes as nanocarriers for delivery of hydrophilic and hydrophobic drugs: preparation and evaluation with atorvastatin and lisinopril. Drug Dev Ind Pharm 2013; 40:1411-20. [PMID: 23944838 DOI: 10.3109/03639045.2013.828223] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Tri-block poly(lactide)-poly(ethylene glycol)-poly(lactide) (PLA-PEG-PLA) copolymers were synthesized and used to prepare polymersomes loaded separately by the hydrophobic and hydrophilic model drugs, atorvastatin and lisinopril, respectively. The resulting nanostructures were characterized by various techniques such as FTIR, DSC, PCS and AFM. The polymersomes exhibited high encapsulation efficiencies of almost 78% and 70.8% for atorvastatin and lisinopril, respectively. Investigation on FTIR and DSC results revealed that such a high encapsulation efficiency is due to strong interaction between atorvastatin and the copolymer. The impact of drug/copolymer ratio and copolymer composition on drug-loading efficiency and drug release behavior were also studied. The results showed that in case of lisinopril, polymersomes exhibited a triphasic drug release, while for atorvastatin a biphasic release profile was obtained. Overall, the results indicated that PLA-PEG-PLA polymersomes can be considered as a promising carrier for both hydrophilic and hydrophobic drugs.
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Affiliation(s)
- H Danafar
- Faculty of Pharmacy, Tabriz University of Medical Sciences , Tabriz , Iran
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Nirmala MJ, Mukherjee A, Chandrasekaran N. Improved efficacy of fluconazole against candidiasis using bio-based microemulsion technique. Biotechnol Appl Biochem 2013; 60:417-29. [PMID: 23586695 DOI: 10.1002/bab.1116] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 03/25/2013] [Indexed: 11/10/2022]
Affiliation(s)
- M. Joyce Nirmala
- Centre for Nanobiotechnology; VIT University; Vellore; Tamil Nadu; India
| | - Amitava Mukherjee
- Centre for Nanobiotechnology; VIT University; Vellore; Tamil Nadu; India
| | - N. Chandrasekaran
- Centre for Nanobiotechnology; VIT University; Vellore; Tamil Nadu; India
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Joglekar M, Trewyn BG. Polymer-based stimuli-responsive nanosystems for biomedical applications. Biotechnol J 2013; 8:931-45. [PMID: 23843342 DOI: 10.1002/biot.201300073] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Revised: 04/20/2013] [Accepted: 06/06/2013] [Indexed: 12/26/2022]
Abstract
The application of organic polymers and inorganic/organic hybrid systems in numerous fields of biotechnology has seen a considerable growth in recent years. Typically, organic polymers with diverse structures, compositional variations and differing molecular weights have been utilized to assemble polymeric nanosystems such as polymeric micelles, polymersomes, and nanohydrogels with unique features and structural properties. The architecture of these polymeric nanosystems involves the use of both hydrophobic and hydrophilic polymeric blocks, making them suitable as vehicles for diagnostic and therapeutic applications. Recently, "smart" or "intelligent" polymers have attracted significant attention in the biomedical field wherein careful introduction of specific polymeric modalities changes a banal polymeric nanosystem to an advanced stimuli-responsive nanosystem capable of performing extraordinary functions in response to an internal or external trigger such as pH, temperature, redox, enzymes, light, magnetic, or ultrasound. Further, incorporation of inorganic nanoparticles such as gold, silica, or iron oxide with surface-bound stimuli-responsive polymers offers additional advantages and multifunctionality in the field of nanomedicine. This review covers the physical properties and applications of both organic and organic/inorganic hybrid nanosystems with specific recent breakthroughs in drug delivery, imaging, tissue engineering, and separations and provides a brief discussion on the future direction.
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Affiliation(s)
- Madhura Joglekar
- Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, CO 80401, USA
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Shahbazi MA, Hamidi M, Mohammadi-Samani S. Preparation, optimization, and in-vitro/in-vivo/ex-vivo characterization of chitosan-heparin nanoparticles: drug-induced gelation. J Pharm Pharmacol 2013; 65:1118-33. [DOI: 10.1111/jphp.12076] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 04/07/2013] [Indexed: 12/20/2022]
Abstract
Abstract
Objectives
Management of blood coagulation-related diseases is currently limited by the inability to provide an adequate drug concentration in blood circulation for a long term. As a promising way to overcome this problem, the long-acting forms of these drugs have attracted many interests in recent years.
Methods
In this study, chitosan-heparin nanoparticles were prepared as a polymeric delivery system intended for the prolonged intravenous delivery of heparin where the drug was used as both the therapeutic agent and a gel-forming counter-ion. The nanoparticle preparation method was optimized using a Taguchi orthogonal array. Critical formulation variables were optimized in this study in terms of their corresponding effects on the target response of particle size. Nanoparticles were characterized by the Fourier transform infrared spectroscopy, transmission electron microscopy and zeta potential.
Key findings
The size, polydispersity index, zeta potential and encapsulation efficiency for the optimized formulation were found to be 61.33 ± 1.53 nm, 0.06, +15.7 mv and 74.16 ± 1.27%, respectively. The sizes of the prepared drug-loaded nanoparticles were stable at least 1 week at room temperature and 3 months in refrigerator.
Conclusions
The ex-vivo and in-vivo tests on the heparin-chitosan nanoparticles using activated partial thromboplastin time (aPTT) as the biological index were indicative of a smoother and longer elevation in aPTT in the presence of nanoparticulate drug.
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Affiliation(s)
- Mohammad-Ali Shahbazi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Division of Pharmaceutical Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Mehrdad Hamidi
- Department of Pharmaceutics, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Soliman Mohammadi-Samani
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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Agatemor C, Shaver MP. Tacticity-Induced Changes in the Micellization and Degradation Properties of Poly(lactic acid)-block-poly(ethylene glycol) Copolymers. Biomacromolecules 2013; 14:699-708. [DOI: 10.1021/bm400060x] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Christian Agatemor
- Department of Chemistry, University of Prince Edward Island,
550 University Avenue, Charlottetown, PE, C1A 4P3, Canada
| | - Michael P. Shaver
- Department of Chemistry, University of Prince Edward Island,
550 University Avenue, Charlottetown, PE, C1A 4P3, Canada
- School of Chemistry, University of Edinburgh, Joseph Black
Building, West Mains Road, Edinburgh, EH9 3JJ, United Kingdom
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40
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McNamee KP, Pitet LM, Knauss DM. Synthesis, assembly, and cross-linking of polymer amphiphiles in situ: polyurethane–polylactide core–shell particles. Polym Chem 2013. [DOI: 10.1039/c3py00030c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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41
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Shahbazi MA, Hamidi M. The impact of preparation parameters on typical attributes of chitosan-heparin nanohydrogels: particle size, loading efficiency, and drug release. Drug Dev Ind Pharm 2012; 39:1774-82. [DOI: 10.3109/03639045.2012.736518] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Schmelz J, Schedl AE, Steinlein C, Manners I, Schmalz H. Length Control and Block-Type Architectures in Worm-like Micelles with Polyethylene Cores. J Am Chem Soc 2012; 134:14217-25. [DOI: 10.1021/ja306264d] [Citation(s) in RCA: 181] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Joachim Schmelz
- Makromolekulare
Chemie II, Universität Bayreuth,
95440 Bayreuth, Germany
| | - Andreas E. Schedl
- Makromolekulare
Chemie II, Universität Bayreuth,
95440 Bayreuth, Germany
| | | | - Ian Manners
- School of Chemistry, University of Bristol, Bristol BS8 1TS, U. K
| | - Holger Schmalz
- Makromolekulare
Chemie II, Universität Bayreuth,
95440 Bayreuth, Germany
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Miller T, Hill A, Uezguen S, Weigandt M, Goepferich A. Analysis of immediate stress mechanisms upon injection of polymeric micelles and related colloidal drug carriers: implications on drug targeting. Biomacromolecules 2012; 13:1707-18. [PMID: 22462502 DOI: 10.1021/bm3002045] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Polymeric micelles are ideal carriers for solubilization and targeting applications using hydrophobic drugs. Stability of colloidal aggregates upon injection into the bloodstream is mandatory to maintain the drugs' targeting potential and to influence pharmacokinetics. In this review we analyzed and discussed the most relevant stress mechanisms that polymeric micelles and related colloidal carriers encounter upon injection, including (1) dilution, (2) interactions with blood components, and (3) immunological responses of the body. In detail we analyzed the opsonin-dysopsonin hypothesis that points at a connection between a particles' protein-corona and its tissue accumulation by the enhanced permeability and retention (EPR) effect. In the established theory, size is seen as a necessary condition to reach nanoparticle accumulation in disease modified tissue. There is, however, mounting evidence of other sufficient conditions (e.g., particle charge, receptor recognition of proteins adsorbed onto particle surfaces) triggering nanoparticle extravasation by active mechanisms. In conclusion, the analyzed stress mechanisms are directly responsible for in vivo success or failure of the site-specific delivery with colloidal carrier systems.
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Affiliation(s)
- Tobias Miller
- Exploratory Pharmaceutical Development, Merck KGaA, Darmstadt, Germany
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