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Volkova T, Simonova O, Perlovich G. Revisiting the Solubility-Permeability Relationship with Hydrophobic Drug Umifenovir in Pluronic Solutions: Impact of pH and Co-Solvent. Pharmaceutics 2023; 15:pharmaceutics15020422. [PMID: 36839743 PMCID: PMC9959244 DOI: 10.3390/pharmaceutics15020422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
This study describes the influence of pluronic F-127 (F-127) and ethanol (EtOH) on the solubility of umifenovir (UMF) in buffer solutions of pH 2.0 and pH 7.4, and its permeability through cellulose membranes. A 44.4-fold greater UMF solubility in acidic medium as compared to an alkaline one was estimated at 310.15 K. The concentration of UMF in the saturated solution was enhanced by the interaction with F-127 micelles. The combined positive effect of EtOH and F-127 on the solubility was estimated. The aggregation number of F-127 micelles in the presence of 10% and 20% ethanol appeared to be reduced by 2.1-fold and 4.1-fold, respectively, as compared to buffer pH 7.4. The presence of ethanol in buffer pH 7.4 solution provided better solvent conditions but inhibited the formation of F-127 micelles. The impact of UMF on the aggregation number of F-127 was not pronounced and was expressed only by a slight increase of 1 and 3 units in 10% and 20% EtOH, respectively. According to the values of zeta potential, addition of EtOH reduced the stability of the system. The permeation of UMF in buffer pH 7.4 measured through the cellulose membrane MWCO 12-14 kDa was increased 1.4-fold by 10% EtOH. An increase in EtOH content to 20% reduced this effect to 1.2-fold. Decreasing effect of 1.5% F-127 on the permeability was inhibited by using 10% EtOH. The solution containing 1.5% F-127 and 10% EtOH was shown to be an advantageous system for UMF in view of the solubility-permeability balance. The authors suppose the findings of the study to be useful for the design of pharmaceutical formulations based on UMF antiviral drugs.
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2
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Zhao J, Zhang C, Wang W, Li C, Mu X, Hu K. Current progress of nanomedicine for prostate cancer diagnosis and treatment. Biomed Pharmacother 2022; 155:113714. [PMID: 36150309 DOI: 10.1016/j.biopha.2022.113714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/02/2022] Open
Abstract
Prostate cancer (PCa) is the most common new cancer case and the second most fatal malignancy in men. Surgery, endocrine therapy, radiotherapy and chemotherapy are the main clinical treatment options for PCa. However, most prostate cancers can develop into castration-resistant prostate cancer (CRPC), and due to the invasiveness of prostate cancer cells, they become resistant to different treatments and activate tumor-promoting signaling pathways, thereby inducing chemoresistance, radioresistance, ADT resistance, and immune resistance. Nanotechnology, which can combine treatment with diagnostic imaging tools, is emerging as a promising treatment modality in prostate cancer therapy. Nanoparticles can not only promote their accumulation at the pathological site through passive targeting techniques for enhanced permeability and retention (EPR), but also provide additional advantages for active targeting using different ligands. This property results in a reduced drug dose to achieve the desired effect, a longer duration of action within the tumor and fewer side effects on healthy tissues. In addition, nanotechnology can create good synergy with radiotherapy, chemotherapy, thermotherapy, photodynamic therapy and gene therapy to enhance their therapeutic effects with greater scope, and reduce the resistance of prostate cancer. In this article, we intend to review and discuss the latest technologies regarding the use of nanomaterials as therapeutic and diagnostic tools for prostate cancer.
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Affiliation(s)
- Jiang Zhao
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Chi Zhang
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China
| | - Weihao Wang
- Department of Plastic and Reconstructive Surgery, The First Hospital of Jilin University, Changchun 130021, China
| | - Chen Li
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun 130021, China
| | - Xupeng Mu
- Scientific Research Center, China-Japan Union Hospital, Jilin University, Changchun 130033, China.
| | - Kebang Hu
- Department of Urology, The First Hospital of Jilin University, Changchun 130021, China.
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3
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Joy MTR, Rub MA, Hossain MAA, Biswas PK, Alghamdi YG, Asiri AM, Amin MR, Mohanta SC, Hoque MA, Kabir SE. Study of the aggregation, interaction, and thermodynamic properties of the dodecyltrimethylammonium bromide & cefixime trihydrate mixture in sodium salts solution at numerous temperatures. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2091052] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Md. Tuhinur R. Joy
- Department of Chemistry, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Malik Abdul Rub
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Md Al Amin Hossain
- Department of Chemistry, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Provas Kumer Biswas
- Department of Chemistry, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Yousef G. Alghamdi
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdullah M. Asiri
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Md. Ruhul Amin
- Department of Chemistry & Physics, Gono Bishwabidyalay, Dhaka, Bangladesh
| | - Suman C. Mohanta
- Department of Chemistry, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Md. Anamul Hoque
- Department of Chemistry, Jahangirnagar University, Dhaka, Bangladesh
| | - Shariff E. Kabir
- Department of Chemistry, Jagannath University, Dhaka, Bangladesh
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4
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Fay JM, Kabanov AV. Interpolyelectrolyte Complexes as an Emerging Technology for Pharmaceutical Delivery of Polypeptides. REVIEWS AND ADVANCES IN CHEMISTRY 2022. [PMCID: PMC9987408 DOI: 10.1134/s2634827622600177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Polyelectrolyte complexes and the derivatives thereof comprise some of the most promising vehicles for the encapsulation and delivery of macromolecular therapeutics. In particular, protein therapeutics, which present a host of special considerations, can often be effectively packaged and delivered using interpolyelectrolyte complexes. While the technologies are still in the developmental phase, there are numerous examples of complexes where control is exerted over spacial and temporal delivery of a model protein cargo or candidate protein therapeutic agent. Here we provide a historical and practical background to promote a deeper understanding of interpolyelectrolyte complexes and the derivative technologies. Additionally, we review the physical principles underlying the association of polyelectrolyte complexes and the application of those principles to novel strategies and technologies driving interpolyelectrolyte complexation. Then, the application of polyelectrolyte complex technology to protein therapeutics is discussed in detail including discussions of several types of protein cargo with a special emphasis on Brain-Derived Neurotrophic Factor. Finally, we focus on the use of stealth polymers in block ionomer complexes, specifically PEG; its benefits, flaws, and possible alternatives. Comprehensive understanding of the field may promote the continued development of derivative technologies for the delivery of particularly intransigent protein therapeutics, much as has been accomplished for small molecule drugs. We also aim to link current advances to the historical developments which inaugurated the field. With consideration to the field, industrial and academic researchers can utilize the discussed technologies and continue to elucidate novel modalities for a myriad of therapeutic and commercial applications.
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Affiliation(s)
- James M. Fay
- Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina, NC 27599-7362 Chapel Hill, USA ,Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina, NC 27599-7260 Chapel Hill, USA
| | - Alexander V. Kabanov
- Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina, NC 27599-7362 Chapel Hill, USA ,Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, NC 27599-7260 Chapel Hill, USA ,Faculty of Chemistry, Moscow State University, 119992 Moscow, Russia
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5
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Impacts of polyols and temperature on the micellization, interaction and thermodynamics behavior of the mixture of tetradecyltrimethylammonium bromide and polyvinyl alcohol. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2021-3065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Herein, the aggregation manner of the mixture of polyvinyl alcohol (PVA) and tetradecyltrimethylammonium bromide (TTAB) was performed in polyols (glucose, maltose and galactose) media over 300.55–320.55 K temperatures range with 5 K interval through conductivity measurement method. The micelle formation of TTAB + PVA mixture was identified by the assessment of critical micelle concentration (CMC) from the plots of specific conductivity (κ) versus TTAB concentration. The degree of micelle ionization (α), the extent of bound counter ions (β) as well as thermodynamic properties (
Δ
G
m
0
${\Delta}{G}_{m}^{0}$
,
Δ
H
m
0
${\Delta}{H}_{m}^{0}$
and
Δ
S
m
0
${\Delta}{S}_{m}^{0}$
) of TTAB + PVA systems have been estimated. The CMC values reveal that the micelle formation of TTAB + PVA mixture experience an enhancement in the manifestation of polyols. The values of free energy of micellization (
Δ
G
m
0
${\Delta}{G}_{m}^{0}$
) are negative for the TTAB + PVA system in aqueous polyols media, suggesting a spontaneous aggregation phenomenon. The
Δ
H
m
0
${\Delta}{H}_{m}^{0}$
and
Δ
S
m
0
${\Delta}{S}_{m}^{0}$
values of TTAB + PVA systems direct that the PVA molecule interacts with TTAB through the exothermic, ion-dipole, and hydrophobic interactions. The thermodynamic properties of transfer were also determined for the move of TTAB + PVA mixture from H2O to water + polyols mixed solvents. The values of compensation temperature (T
c) and intrinsic enthalpy gain (
Δ
H
m
0
,
∗
${\Delta}{H}_{m}^{0,\ast }$
) were evaluated and discussed for the studied system.
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6
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Shaikh S, Patel H, Ray D, Aswal VK, Sharma RK. Mixed Poloxamer Nanomicelles for the Anticonvulsant Lamotrigine Drug: Solubility, Micellar Characterization, and In-Vitro Release Studies. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2021; 21:5723-5735. [PMID: 33980386 DOI: 10.1166/jnn.2021.19490] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recently the applications of Poloxamers in drug development is promising as it facilitated the drug molecule for delivering to the correct place, at the correct time and in the correct amount. Poloxamers can form nanomicelles to encapsulate hydrophobic drugs in order to increase solubility, stability and facilitate delivery at target. In this context, the solubilization of anticonvulsant lamotrigine (LMN) drug in a chain of Poloxamers containing different polyethylene oxide and polypropylene oxide noieties were examined. The results showed better solubilization of LMN in Poloxamers contain low CMTs while poor with Poloxamers having high CMTs. Systematic investigation of two mixed Poloxamer nanomicelles (P407:P403 and P407:P105) for LMN bioavailability at body temperature (37 °C) were investigated. The solubility of LMN was enhanced in mixed P407:P403 nanomicelles with the amount of P403 and reduced in mixed P407:P105 nanomicelles with the amount of P105. LMN encapsulated mixed Poloxamer nanomicelles were found spherical in shape with ~25 nm Dh sizes. The In-Vitro release profiles of mixed Poloxamer nanomicelles demonstrated the biphasic model with initial burst release and then slowly release of LMN. Better biocompatibility of LMN in the mixed P407:P403 nanomicelles was confirmed with stability data. The results of this work were proven the mixed P407:P403 nanomicelles as efficient nanocarriers for LMN.
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Affiliation(s)
- Sofiya Shaikh
- Applied Chemistry Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara 390001, Gujarat, India
| | - Hemil Patel
- Applied Chemistry Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara 390001, Gujarat, India
| | - Debes Ray
- State Physics Division, Bhabha Atomic Research Centre (BARC), Mumbai 400085, Maharashtra, India
| | - Vinod K Aswal
- State Physics Division, Bhabha Atomic Research Centre (BARC), Mumbai 400085, Maharashtra, India
| | - Rakesh K Sharma
- Applied Chemistry Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara 390001, Gujarat, India
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7
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Wei Y, Luo L, Gui T, Yu F, Yan L, Yao L, Zhong L, Yu W, Han B, Patel JM, Liu JF, Beier F, Levin LS, Nelson C, Shao Z, Han L, Mauck RL, Tsourkas A, Ahn J, Cheng Z, Qin L. Targeting cartilage EGFR pathway for osteoarthritis treatment. Sci Transl Med 2021; 13:13/576/eabb3946. [PMID: 33441426 DOI: 10.1126/scitranslmed.abb3946] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 11/23/2020] [Indexed: 12/19/2022]
Abstract
Osteoarthritis (OA) is a widespread joint disease for which there are no disease-modifying treatments. Previously, we found that mice with cartilage-specific epidermal growth factor receptor (EGFR) deficiency developed accelerated knee OA. To test whether the EGFR pathway can be targeted as a potential OA therapy, we constructed two cartilage-specific EGFR overactivation models in mice by overexpressing heparin binding EGF-like growth factor (HBEGF), an EGFR ligand. Compared to wild type, Col2-Cre HBEGF-overexpressing mice had persistently enlarged articular cartilage from adolescence, due to an expanded pool of chondroprogenitors with elevated proliferation ability, survival rate, and lubricant production. Adult Col2-Cre HBEGF-overexpressing mice and Aggrecan-CreER HBEGF-overexpressing mice were resistant to cartilage degeneration and other signs of OA after surgical destabilization of the medial meniscus (DMM). Treating mice with gefitinib, an EGFR inhibitor, abolished the protective action against OA in HBEGF-overexpressing mice. Polymeric micellar nanoparticles (NPs) conjugated with transforming growth factor-α (TGFα), a potent EGFR ligand, were stable and nontoxic and had long joint retention, high cartilage uptake, and penetration capabilities. Intra-articular delivery of TGFα-NPs effectively attenuated surgery-induced OA cartilage degeneration, subchondral bone plate sclerosis, and joint pain. Genetic or pharmacologic activation of EGFR revealed no obvious side effects in knee joints and major vital organs in mice. Together, our studies demonstrate the feasibility of using nanotechnology to target EGFR signaling for OA treatment.
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Affiliation(s)
- Yulong Wei
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lijun Luo
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Tao Gui
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Feifan Yu
- Alphathera LLC, Philadelphia, PA 19146, USA
| | - Lesan Yan
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Lutian Yao
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Leilei Zhong
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Wei Yu
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Biao Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Jay M Patel
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA 19104, USA
| | - Jessica F Liu
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Frank Beier
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Lawrence Scott Levin
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Charles Nelson
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lin Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Robert L Mauck
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA.,Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA 19104, USA
| | - Andrew Tsourkas
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jaimo Ahn
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI 48104, USA
| | - Zhiliang Cheng
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Ling Qin
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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8
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Hoque MA, Alam MM, Rana S, Alothman AA, Alsawat M. Aggregation behavior and thermodynamic properties of the mixture of sodium carboxymethyl cellulose and cetyltrimethylammonium bromide in numerous temperatures and mixed solvents. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2021-3030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Abstract
Interaction of sodium carboxymethylcellulose (SCMC) with cetyltrimethylammonium bromide (CTAB; cationic in nature) in H2O and additives (alcohols and diols) media has been investigated using conductivity technique. The micellar parameters such as critical micelle concentration (cmc), fraction of counter ion binding (β), thermodynamic parameters, transfer properties, and enthalpy-entropy compensation parameters of CTAB + SCMC mixture have been assessed in water and aq. alcohols/diols media. One cmc value was achieved for CTAB + SCMC mixtures in the entire circumstances and the attendance of SCMC disfavors the CTAB micellization. The cmc values were obtained to be greater in alcohols and diols media compared to H2O medium. The cmc values also exhibit a dependency on the solvent composition and temperature variation. In all the cases, the ΔG
0
m
values were achieved to be negative which signifying the spontaneous formation of micelles while the extent of spontaneity is decreased in alcohols and diols media. Both the ΔH
0
m
and ΔS
0
m
reveal that hydrophobic, ion-dipole as well as electrostatic interactions are the proposed binding forces between CTAB and SCMC. The compensation parameters (ΔH
0*
m
and T
c
) are in decent agreement with the biological fluid.
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Affiliation(s)
- Md. Anamul Hoque
- Department of Chemistry , Jahangirnagar University , Savar , Dhaka 1342 , Bangladesh
| | - Md. Mahabub Alam
- Department of Chemistry , Jahangirnagar University , Savar , Dhaka 1342 , Bangladesh
| | - Shahed Rana
- Department of Chemistry , Jahangirnagar University , Savar , Dhaka 1342 , Bangladesh
| | - Asma A. Alothman
- Chemistry Department , College of Science, King Saud University , Riyadh 11451 , Saudi Arabia
| | - Mohammed Alsawat
- Department of Chemistry , College of Science, Taif University , P.O. Box 11099 , Taif 21944 , Saudi Arabia
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9
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Hoque MA, Rahman MM, Alam MM, Mahbub S, Khan MA, Kumar D, Albaqami MD, Wabaidur SM. Interaction of cephalexin monohydrate with surfactants in aqueous and sodium chloride solution at variable temperatures: Conductivity and spectroscopic measurements. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115337] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Pillai SA, Sharma AK, Desai SM, Sheth U, Bahadur A, Ray D, Aswal VK, Kumar S. Characterization and application of mixed micellar assemblies of PEO-PPO star block copolymers for solubilization of hydrophobic anticancer drug and in vitro release. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113543] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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11
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Mohamadpour H, Azadi A, Rostamizadeh K, Andalib S, Saghatchi Zanjani MR, Hamidi M. Preparation, Optimization, and Evaluation of Methoxy Poly(ethylene glycol)- co-Poly(ε-caprolactone) Nanoparticles Loaded by Rivastigmine for Brain Delivery. ACS Chem Neurosci 2020; 11:783-795. [PMID: 32043866 DOI: 10.1021/acschemneuro.9b00691] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The objective of this study was to formulate and investigate the neuropharmacokinetics and pharmacodynamics of rivastigmine (Riv) loaded methoxy poly(ethylene glycol)-co-poly(ε-caprolactone) (MPEG-PCL) nanoparticles (Riv-NPs) in rats after IV administration. The MPEG-PCL was synthesized via ring-opening polymerization of ε-caprolactone by MPEG and used to prepare Riv-NPs by the nanoprecipitation method. Response surface D-optimal design was applied to optimize Riv-NPs drug delivery system. The optimized formulation showed a particle size (PS) of 98.5 ± 2.1 nm, drug loading (DL) of 19.2 ± 1.1%, and sustained release behavior of the drug. Moreover, the optimized Riv-NPs were characterized by AFM and DSC analyses. A simple and sensitive HPLC-DAD method for bioanalysis was developed and successfully applied to the pharmacokinetic study. The neuropharmacokinetic study in rats indicated that the integration plot was linear, and the brain uptake clearance of the drug-loaded in MPEG-PCL NPs was significantly higher than the free drug. Furthermore, results of pharmacodynamic studies using the Morris water maze test demonstrated faster regain of memory loss with Riv-NPs when compared to the free drug solution. The results revealed that the mentioned biodegradable nanoparticle holds promise as a suitable drug carrier for brain drug delivery.
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Affiliation(s)
- Hamed Mohamadpour
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
- Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Amir Azadi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Kobra Rostamizadeh
- Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Pharmaceutical biomaterials, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Sina Andalib
- Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mohammad Reza Saghatchi Zanjani
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
- Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mehrdad Hamidi
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
- Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Pharmaceutics, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
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12
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Antioxidants in Cancer Therapy: Recent Trends in Application of Nanotechnology for Enhanced Delivery. Sci Pharm 2020. [DOI: 10.3390/scipharm88010005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Recently, the occurrence of cancer has significantly increased; it represents the second-most frequent cause of death after cardiovascular diseases. Many dietary antioxidants have shown large impact as effective agents for cancer prevention by reducing oxidative stress, which has been a part in the development of many diseases, including cancer. One of the obstacles in the delivery of antioxidant therapies into the required domain lies in the inadequate delivery of these agents to their intended site of action. Using nanotechnology in delivery of antioxidants leads to increased therapeutic index and higher drug concentration in tumor tissues, thus enhancing anticancer treatment. In this review, we discuss the role of different antioxidants in cancer therapy and their improved therapeutic effect through their formulation using nanotechnology.
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13
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Lee CF, Yang CH, Lin TL, Bahadur P, Chen LJ. Role of molecular weight and hydrophobicity of amphiphilic tri-block copolymers in temperature-dependent co-micellization process and drug solubility. Colloids Surf B Biointerfaces 2019; 183:110461. [DOI: 10.1016/j.colsurfb.2019.110461] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 08/18/2019] [Accepted: 08/25/2019] [Indexed: 01/09/2023]
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14
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Mukherjee A, Ghosh S, Pal M, Singh B. Deciphering the effective sequestration of DNA bounded bioactive small molecule Safranin-O by non-ionic surfactant TX-114 and diminution its cytotoxicity. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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15
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Nemutlu E, Eroğlu İ, Eroğlu H, Kır S. In Vitro Release Test of Nano-drug Delivery Systems Based on Analytical and Technological Perspectives. CURR ANAL CHEM 2019. [DOI: 10.2174/1573411014666180912125931] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background:Nanotech products are gaining more attention depending on their advantages for improving drug solubility, maintenance of drug targeting, and attenuation of drug toxicity. In vitro release test is the critical physical parameter to determine the pharmaceutical quality of the product, to monitor formulation design and batch-to-batch variation.Methods:Spectrophotometric and chromatographic methods are mostly used in quantification studies from in vitro release test of nano-drug delivery systems. These techniques have advantages and disadvantages with respect to each other considering dynamic range, selectivity, automation, compatibility with in vitro release media and cost per sample.Results:It is very important to determine the correct kinetic profile of active pharmaceutical substances. At this point, the analytical method used for in vitro release tests has become a very critical parameter to correctly assess the profiles. In this review, we provided an overview of analytical methods applied to the in vitro release assay of various nanopharmaceuticals.Conclusion:This review presents practical direction on analytical method selection for in vitro release test on nanopharmaceuticals. Moreover, precautions on analytical method selection, optimization and validation were discussed.
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Affiliation(s)
- Emirhan Nemutlu
- Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, 06100, Sıhhiye, Ankara, Turkey
| | - İpek Eroğlu
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, 06100, Sıhhiye, Ankara, Turkey
| | - Hakan Eroğlu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, 06100, Sıhhiye, Ankara, Turkey
| | - Sedef Kır
- Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, 06100, Sıhhiye, Ankara, Turkey
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16
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Le Fer G, Le Cœur C, Guigner JM, Amiel C, Volet G. Amphiphilic diblock and triblock copolymers based on poly(2-methyl-2-oxazoline) and poly(D,L-lactide): Synthesis, physicochemical characterizations and self-assembly properties. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.03.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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17
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Margaritova Zaharieva M, Dimitrov Kroumov A, Dimitrova L, Tsvetkova I, Trochopoulos A, Mihaylov Konstantinov S, Reinhold Berger M, Momchilova M, Yoncheva K, Miladinov Najdenski H. Micellar curcumin improves the antibacterial activity of the alkylphosphocholines erufosine and miltefosine against pathogenic Staphyloccocus aureus strains. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2018.1533792] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Maya Margaritova Zaharieva
- Department of Infectious Microbiology, The Stephan Angeloff Institute of Microbiology Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Alexander Dimitrov Kroumov
- Department of Applied Microbiology, The Stephan Angeloff Institute of Microbiology Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Lyudmila Dimitrova
- Department of Infectious Microbiology, The Stephan Angeloff Institute of Microbiology Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Iva Tsvetkova
- Department of Infectious Microbiology, The Stephan Angeloff Institute of Microbiology Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Antonios Trochopoulos
- Department of Pharmacology Pharmacotherapy and Toxicology Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Spiro Mihaylov Konstantinov
- Department of Pharmacology Pharmacotherapy and Toxicology Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | | | - Milena Momchilova
- Department of Pharmaceutical Technology and Biopharmaceutics Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Krassimira Yoncheva
- Department of Pharmaceutical Technology and Biopharmaceutics Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Hristo Miladinov Najdenski
- Department of Infectious Microbiology, The Stephan Angeloff Institute of Microbiology Bulgarian Academy of Sciences, Sofia, Bulgaria
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18
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Hanafy NAN, El-Kemary M, Leporatti S. Micelles Structure Development as a Strategy to Improve Smart Cancer Therapy. Cancers (Basel) 2018; 10:E238. [PMID: 30037052 PMCID: PMC6071246 DOI: 10.3390/cancers10070238] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/12/2018] [Accepted: 07/17/2018] [Indexed: 12/11/2022] Open
Abstract
Micelles as colloidal suspension have attracted considerable attention due to their potential use for both cancer diagnosis and therapy. These structures have proven their ability to deliver poorly water-soluble anticancer drugs, improve drug stability, and have good penetration and site-specificity, leading to enhance therapeutic efficacy. Micelles are composed of hydrophobic and hydrophilic components assembled into nanosized spherical, ellipsoid, cylindrical, or unilamellar structures. For their simple formation, they are widely studied, either by using opposite polymers attachment consisting of two or more block copolymers, or by using fatty acid molecules that can modify themselves in a rounded shape. Recently, hybrid and responsive stimuli nanomicelles are formed either by integration with metal nanoparticles such as silver, gold, iron oxide nanoparticles inside micelles or by a combination of lipids and polymers into single composite. Herein, through this special issue, an updated overview of micelles development and their application for cancer therapy will be discussed.
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Affiliation(s)
- Nemany A N Hanafy
- Sohag Cancer Center, Sohag 82511, Egypt.
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafrelsheikh 33516, Egypt.
| | - Maged El-Kemary
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafrelsheikh 33516, Egypt.
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19
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Carmona-Ribeiro AM. Self-Assembled Antimicrobial Nanomaterials. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E1408. [PMID: 29973521 PMCID: PMC6069395 DOI: 10.3390/ijerph15071408] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/28/2018] [Accepted: 06/29/2018] [Indexed: 12/17/2022]
Abstract
Nanotechnology came to stay improving the quality of human life by reducing environmental contamination of earth and water with pathogens. This review discusses how self-assembled antimicrobial nanomaterials can contribute to maintain humans, their water and their environment inside safe boundaries to human life even though some of these nanomaterials display an overt toxicity. At the core of their strategic use, the self-assembled antimicrobial nanomaterials exhibit optimal and biomimetic organization leading to activity at low doses of their toxic components. Antimicrobial bilayer fragments, bilayer-covered or multilayered nanoparticles, functionalized inorganic or organic polymeric materials, coatings and hydrogels disclose their potential for environmental and public health applications in this review.
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Affiliation(s)
- Ana Maria Carmona-Ribeiro
- Biocolloids Laboratory, Instituto de Química, Universidade de São Paulo; Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil.
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20
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Salay LC, Prazeres EA, Marín Huachaca NS, Lemos M, Piccoli JP, Sanches PRS, Cilli EM, Santos RS, Feitosa E. Molecular interactions between Pluronic F127 and the peptide tritrpticin in aqueous solution. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4304-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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Zhang RY, Wang ZY, Yang XQ, Xuan Y, Cheng K, Li C, Song XL, An J, Hou XL, Zhao YD. Folic acid modified Pluronic F127 coating Ag 2S quantum dot for photoacoustic imaging of tumor cell-targeting. NANOTECHNOLOGY 2018; 29:055101. [PMID: 29139396 DOI: 10.1088/1361-6528/aa9acc] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this study, an oil-soluble Ag2S quantum dot (QD) was synthesized through thermal decomposition using the single-source precursor method, and Pluronic F127 (PF127), a triblock copolymer functionalized with folic acid (FA), was deposited on the surface of the QD, then a water-soluble PF127-FA@Ag2S nanoprobe with targeting ability was fabricated. The as-prepared PF127-FA@Ag2S exhibited spheroidal morphology and high dispersibility, with average diameters of 115 ± 20.7 nm (as observed by transmission electron microscopy). No obvious toxicity of the PF127-FA@Ag2S nanoprobe was found in standard 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide assay and colony-formation assay, indicating good biocompatibility and safety. The resulting PF127-FA@Ag2S exhibited excellent stability between 4 °C-40 °C. Additionally, the capacity of the tumor cell-targeting high contrast enhanced photoacoustic imaging of PF127-FA@Ag2S was verified in comparison with A547 and HeLa cells. In other words, the excellent properties of PF127-FA@Ag2S show great potential in further research for targeting and photoacoustic imaging.
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Affiliation(s)
- Ruo-Yun Zhang
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, Hubei, People's Republic of China
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22
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Synergistic Effect of Binary Mixed-Pluronic Systems on Temperature Dependent Self-assembly Process and Drug Solubility. Polymers (Basel) 2018; 10:polym10010105. [PMID: 30966142 PMCID: PMC6415020 DOI: 10.3390/polym10010105] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 01/17/2018] [Accepted: 01/19/2018] [Indexed: 11/17/2022] Open
Abstract
Mixed Pluronic micelles from very hydrophobic and very hydrophilic copolymers were selected to scrutinize the synergistic effect on the self-assembly process as well as the solubilization capacity of ibuprofen. The tendency of mixing behavior between parent copolymers was systematically examined from two perspectives: different block chain lengths at same hydrophilicity (L92 + F108, +F98, +F88, and +F68), as well as various hydrophobicities at the same PPO moiety (L92 + F88, +F87, and +P84). Temperature-dependent micellization in these binary systems was clearly inspected by the combined use of high sensitivity differential scanning calorimeter (HSDSC) and dynamic light scattering (DLS). Changes in heat capacity and size of aggregates at different temperatures during the whole micellization process were simultaneously observed and examined. While distinction of block chain length between parent copolymers increases, the monodispersity of the binary Pluronic systems decreases. However, parent copolymers with distinct PPO moieties do not affirmatively lead to non-cooperative binding, such as the L92 + P84 system. The addition of ibuprofen promotes micellization as well as stabilizes aggregates in the solution. The partial replacement of the hydrophilic Pluronic by a more hydrophobic Pluronic L92 would increase the total hydrophobicity of mixed Pluronics used in the system to substantially enhance the solubility of ibuprofen. The solubility of ibuprofen in the 0.5 wt % L92 + 0.368 wt % P84 system is as high as 4.29 mg/mL, which is 1.4 times more than that of the 0.868 wt % P84 system and 147 times more than that in pure water at 37 °C.
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23
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Khimani M, Tseng HW, Aswal VK, Chen LJ, Bahadur P. Salt-assisted microstructure evaluation of hydrophilic block copolymer F98: A thermal and scattering study. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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24
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Physicochemical investigations of mixed micelles of cationic gemini surfactants with different triblock polymers. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4195-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Vong LB, Kimura S, Nagasaki Y. Newly Designed Silica-Containing Redox Nanoparticles for Oral Delivery of Novel TOP2 Catalytic Inhibitor for Treating Colon Cancer. Adv Healthc Mater 2017; 6. [PMID: 28736844 DOI: 10.1002/adhm.201700428] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 06/13/2017] [Indexed: 01/23/2023]
Abstract
Although oral drug delivery is the most common route of drug administration, the conventional polymeric nanocarriers exhibit a low drug loading capacity and low stability in the gastrointestinal (GI) environments. In this study, a newly designed silica-containing redox nanoparticle (siRNP) with reactive oxygen species (ROS) scavenging capacity is developed as an ideal oral nanocarrier for a novel hydrophobic anticancer compound BNS-22 to treat colitis-associated colon cancer in vivo. Crosslinking of silica moieties significantly enhances the stability under acidic conditions and improves BNS-22 loading capacity of siRNP compared to the conventional redox nanoparticle. After oral administration to mice, BNS-22-loaded siRNP (BNS-22@siRNP) remarkably improves bioavailability and colonic tumor distribution of BNS-22. As the result, BNS-22@siRNP significantly inhibits the tumor progression in colitis-associated colon cancer mice compared to other control treatments. It is noteworthy that no systemic absorption of siRNP carrier is observed after oral administration. Interestingly, orally administered BNS-22@siRNP significantly suppresses the adverse effects of BNS-22 owing to its ROS scavenging capacity, and no other noticeable toxicities are observed in mice treated with BNS-22@siRNP although siRNP is localized in the GI tract. Our results indicate that siRNP is a promising oral drug nanocarrier for cancer therapy.
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Affiliation(s)
- Long Binh Vong
- Department of Materials Science; Graduate School of Pure and Applied Sciences; University of Tsukuba; 1-1-1 Tennoudai Tsukuba Ibaraki 305-8573 Japan
- Department of Biochemistry; Faculty of Biology and Biotechnology; University of Science; Vietnam National University Ho Chi Minh City (VNU-HCM); Ho Chi Minh City 702500 Vietnam
| | - Shinya Kimura
- Division of Hematology; Respiratory Medicine and Oncology; Department of Internal Medicine; Faculty of Medicine; Saga University; Saga 849-8501 Japan
| | - Yukio Nagasaki
- Department of Materials Science; Graduate School of Pure and Applied Sciences; University of Tsukuba; 1-1-1 Tennoudai Tsukuba Ibaraki 305-8573 Japan
- Master's School of Medical Sciences; Graduate School of Comprehensive Human Sciences; University of Tsukuba; 1-1-1 Tennoudai Tsukuba Ibaraki 305-8575 Japan
- Satellite Laboratory; International Center for Materials Nanoarchitectonics (WPI-MANA); National Institute for Materials Science (NIMS); University of Tsukuba; 1-1-1 Tennoudai Tsukuba Ibaraki 305-8573 Japan
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26
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Gromadzki D, Tzankova V, Kondeva M, Gorinova C, Rychter P, Libera M, Momekov G, Marić M, Momekova D. Amphiphilic core-shell nanoparticles with dimer fatty acid-based aliphatic polyester core and zwitterionic poly(sulfobetaine) shell for controlled delivery of curcumin. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1278217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Daniel Gromadzki
- Institute of Polymers, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Virginia Tzankova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University-Sofia, Sofia, Bulgaria
| | - Magdalena Kondeva
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University-Sofia, Sofia, Bulgaria
| | - Cvetelina Gorinova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University-Sofia, Sofia, Bulgaria
| | - Piotr Rychter
- Institute of Polymers, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Marcin Libera
- Department of Nanostructured Materials, Centre for Polymer and Carbon Materials of the Polish Academy of Sciences, Zabrze, Poland
| | - Georgi Momekov
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University-Sofia, Sofia, Bulgaria
| | - Milan Marić
- Department of Chemical Engineering, McGill University, Montreal, Canada
| | - Denitsa Momekova
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Medical University-Sofia, Sofia, Bulgaria
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27
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Abstract
Thermo-reversible polymeric gels represent an interesting class of materials that can be tailored for a wide range of applications. The triblock poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO) based systems, PEO-PPO-PEO, show thermoreversible gelation around body temperature and, therefore, are particularly suitable for biomedical applications such as drug delivery, gene therapy and tissue engineering. The PEO-PPO-PEO tri-block copolymers have amphiphilic characteristics and self-assemble into micelles to form a variety of close packed structures. By varying the block composition (PEO/PPO ratio) and the molecular weight, it is possible to tailor the final properties of these systems to meet the specific application needs. In this report the thermodynamic basis of micellization of PEO-PPO-PEO systems is described. The factors influencing the micelles formation are discussed along with the methods used to investigate the micellization process and morphology as well as with the main applications of these systems in biomedical fields.
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28
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Taniguchi I, Akiyoshi K, Sunamoto J, Suda Y, Yamamoto M. Cell Specificity of Macromolecular Assembly of Cholesteryl and Galactoside Groups-Conjugated Pullulan. J BIOACT COMPAT POL 2016. [DOI: 10.1177/088391159901400301] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Galactose or lactose groups were conjugated to cholesterol-bearing pullulan (CHP). The CHP derivatives obtained formed monodisperse nanoparticles upon self-aggregation in water. Nanoparticles of galactoside-conjugated CHP self-aggregates were specifically internalized by rat hepatocytes and HepG2 cells. Galactoside-bearing CHP-coated liposome or oil droplet of O/W-emulsion was also taken up by HepG2 cells. Tissue distribution of the nanoparticle CHP self-aggregates changed dramatically with chemical conjugation of the galactose moiety. Galactoside-bearing nanoparticles were specifically accumulated in the liver.
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Affiliation(s)
- Ikuo Taniguchi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Sakyo-ku, Yoshida-Hommachi, Kyoto 606-8501, Japan
| | - Kazunari Akiyoshi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Sakyo-ku, Yoshida-Hommachi, Kyoto 606-8501, Japan
| | - Junzo Sunamoto
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Sakyo-ku, Yoshida-Hommachi, Kyoto 606-8501, Japan
| | - Yasuo Suda
- Department of Chemistry, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Masayuki Yamamoto
- 2nd Department of Surgery, Nagasaki University School of Medicine, 1-7-1 Sakamoto, Nagasaki 852-8102, Japan
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29
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Vong LB, Kobayashi M, Nagasaki Y. Evaluation of the Toxicity and Antioxidant Activity of Redox Nanoparticles in Zebrafish (Danio rerio) Embryos. Mol Pharm 2016; 13:3091-7. [DOI: 10.1021/acs.molpharmaceut.6b00225] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Long Binh Vong
- Department
of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8573, Japan
| | - Makoto Kobayashi
- Department
of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan
| | - Yukio Nagasaki
- Department
of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8573, Japan
- Master’s
School of Medical Sciences, Graduate School of Comprehensive Human
Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
- Satellite
Laboratory, International Center for Materials Nanoarchitectonics
(WPI-MANA), National Institute for Materials Science (NIMS), University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8573, Japan
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30
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Double stimuli responsive mixed aggregates from poly(acrylic acid)-block-poly(ε-caprolactone)-block-poly(acrylic acid) and poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) triblock copolymers. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1741-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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31
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Gorinova C, Aluani D, Yordanov Y, Kondeva-Burdina M, Tzankova V, Popova C, Yoncheva K. In vitro evaluation of antioxidant and neuroprotective effects of curcumin loaded in Pluronic micelles. BIOTECHNOL BIOTEC EQ 2016. [DOI: 10.1080/13102818.2016.1186500] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Cvetelina Gorinova
- Faculty of Pharmacy, Department of Pharmacology, Pharmacotherapy and Toxicology, Medical University of Sofia, Sofia, Bulgaria
| | - Denitsa Aluani
- Faculty of Pharmacy, Department of Pharmacology, Pharmacotherapy and Toxicology, Medical University of Sofia, Sofia, Bulgaria
| | - Yordan Yordanov
- Faculty of Pharmacy, Department of Pharmacology, Pharmacotherapy and Toxicology, Medical University of Sofia, Sofia, Bulgaria
| | - Magdalena Kondeva-Burdina
- Faculty of Pharmacy, Department of Pharmacology, Pharmacotherapy and Toxicology, Medical University of Sofia, Sofia, Bulgaria
| | - Virginia Tzankova
- Faculty of Pharmacy, Department of Pharmacology, Pharmacotherapy and Toxicology, Medical University of Sofia, Sofia, Bulgaria
| | - Cvetelina Popova
- Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medical University of Sofia, Sofia, Bulgaria
| | - Krassimira Yoncheva
- Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medical University of Sofia, Sofia, Bulgaria
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32
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Li X, Tsibouklis J, Weng T, Zhang B, Yin G, Feng G, Cui Y, Savina IN, Mikhalovska LI, Sandeman SR, Howel CA, Mikhalovsky SV. Nano carriers for drug transport across the blood-brain barrier. J Drug Target 2016; 25:17-28. [PMID: 27126681 DOI: 10.1080/1061186x.2016.1184272] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Effective therapy lies in achieving a therapeutic amount of drug to the proper site in the body and then maintaining the desired drug concentration for a sufficient time interval to be clinically effective for treatment. The blood-brain barrier (BBB) hinders most drugs from entering the central nervous system (CNS) from the blood stream, leading to the difficulty of delivering drugs to the brain via the circulatory system for the treatment, diagnosis and prevention of brain diseases. Several brain drug delivery approaches have been developed, such as intracerebral and intracerebroventricular administration, intranasal delivery and blood-to-brain delivery, as a result of transient BBB disruption induced by biological, chemical or physical stimuli such as zonula occludens toxin, mannitol, magnetic heating and ultrasound, but these approaches showed disadvantages of being dangerous, high cost and unsuitability for most brain diseases and drugs. The strategy of vector-mediated blood-to-brain delivery, which involves improving BBB permeability of the drug-carrier conjugate, can minimize side effects, such as being submicrometre objects that behave as a whole unit in terms of their transport and properties, nanomaterials, are promising carrier vehicles for direct drug transport across the intact BBB as a result of their potential to enter the brain capillary endothelial cells by means of normal endocytosis and transcytosis due to their small size, as well as their possibility of being functionalized with multiple copies of the drug molecule of interest. This review provids a concise discussion of nano carriers for drug transport across the intact BBB, various forms of nanomaterials including inorganic/solid lipid/polymeric nanoparticles, nanoemulsions, quantum dots, nanogels, liposomes, micelles, dendrimers, polymersomes and exosomes are critically evaluated, their mechanisms for drug transport across the BBB are reviewed, and the future directions of this area are fully discussed.
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Affiliation(s)
- Xinming Li
- a School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering , Guangzhou , PR China.,b School of Pharmacy and Biomedical Sciences , University of Portsmouth , Portsmouth , UK
| | - John Tsibouklis
- b School of Pharmacy and Biomedical Sciences , University of Portsmouth , Portsmouth , UK
| | - Tingting Weng
- c Department of Chemical Engineering , Guangdong Petroleum and Chemical Technology Institute , Foshan , China
| | - Buning Zhang
- a School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering , Guangzhou , PR China
| | - Guoqiang Yin
- a School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering , Guangzhou , PR China
| | - Guangzhu Feng
- a School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering , Guangzhou , PR China
| | - Yingde Cui
- a School of Chemistry and Chemical Engineering , Zhongkai University of Agriculture and Engineering , Guangzhou , PR China
| | - Irina N Savina
- d School of Pharmacy and Biomolecular Science , University of Brighton , Brighton , UK
| | - Lyuba I Mikhalovska
- d School of Pharmacy and Biomolecular Science , University of Brighton , Brighton , UK
| | - Susan R Sandeman
- d School of Pharmacy and Biomolecular Science , University of Brighton , Brighton , UK
| | - Carol A Howel
- d School of Pharmacy and Biomolecular Science , University of Brighton , Brighton , UK
| | - Sergey V Mikhalovsky
- d School of Pharmacy and Biomolecular Science , University of Brighton , Brighton , UK.,e School of Engineering , Nazarbayev Uiversity , Astana , Kazakhstan
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33
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Mora AK, Singh PK, Nath S. Controlled Sequestration of DNA Intercalated Drug by Polymer–Surfactant Supramolecular Assemblies. J Phys Chem B 2016; 120:4143-51. [DOI: 10.1021/acs.jpcb.5b12689] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aruna K. Mora
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Prabhat K. Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Sukhendu Nath
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
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34
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Fuentes I, Blanco-Fernandez B, Alvarado N, Leiva Á, Radić D, Alvarez-Lorenzo C, Concheiro A. Encapsulation of Antioxidant Gallate Derivatives in Biocompatible Poly(ε-caprolactone)-b-Pluronic-b-Poly(ε-caprolactone) Micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3331-3339. [PMID: 26986801 DOI: 10.1021/acs.langmuir.5b04748] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Formulation of antioxidant agents is still a challenge that limits their application in the biomedical field. Pentablock copolymers obtained through modification of two common PEO-PPO-PEO copolymers (Pluronic F127 and F68) with poly(ε-carprolactone) (PCL) were evaluated regarding their capability to form nanocarriers suitable for gallic acid, methyl gallate, and ethyl gallate. Applying a dialysis method, PCL/F127/PCL and PCL/F68/PCL self-assembled into spherical micelles in 0.9% NaCl aqueous solution but notably differed in critical micellar concentration (CMC), micelle core hydrophobicity, and micelle size, as evidenced by pyrene fluorescence, transmission electron microscopy, and dynamic light scattering. Cytotoxicity studies showed that the copolymers were safe at concentrations well above the CMC. Transfer of gallic acid and derivatives from aqueous medium to the micelle phase was characterized in terms of distribution constant and free energy of transference, which were shown to be strongly dependent on the hydrophobicity of the gallate derivatives and the length of PCL in the pentablock copolymer. Antioxidant activity of gallates was challenged against DPPH previously loaded in PCL/F127/PCL and PCL/F68/PCL micelles. The more the hydrophobicity of the gallate derivative, the greater the capability to enter in the micelle and to consume free radicals. In vitro release studies of gallic acid, methyl gallate, and ethyl gallate from the pentablock copolymer micelles also evidenced the influence of the hydrophobicity of both the gallate derivative and the micelle core on release rate, recording a variety of release patterns. Overall, PCL/F127/PCL and PCL/F68/PCL appear as suitable nanocarriers of potent antioxidant agents in a wide range of polarities, which may be useful for diverse therapeutic applications.
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Affiliation(s)
- Irma Fuentes
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile , Santiago 7820436, Chile
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera , Temuco 4811230, Chile
| | - Bárbara Blanco-Fernandez
- Departamento de Farmacia y Tecnología Farmaceútica, Facultad de Farmacia, Universidade de Santiago de Compostela , 15782 Santiago de Compostela, Spain
- Michigan State University, Radiology , 610 West Ottawa Street, Apartment 811, Lansing, Michigan 48933, United States
| | - Nancy Alvarado
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile , Santiago 7820436, Chile
| | - Ángel Leiva
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile , Santiago 7820436, Chile
| | - Deodato Radić
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile , Santiago 7820436, Chile
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacia y Tecnología Farmaceútica, Facultad de Farmacia, Universidade de Santiago de Compostela , 15782 Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacia y Tecnología Farmaceútica, Facultad de Farmacia, Universidade de Santiago de Compostela , 15782 Santiago de Compostela, Spain
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Khan I, Khan M, Umar MN, Oh DH. Nanobiotechnology and its applications in drug delivery system: a review. IET Nanobiotechnol 2016; 9:396-400. [PMID: 26647817 DOI: 10.1049/iet-nbt.2014.0062] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Nanobiotechnology holds great potential in various regimes of life sciences. In this review, the potential applications of nanobiotechnology in various sectors of nanotechnologies, including nanomedicine and nanobiopharmaceuticals, are highlighted. To overcome the problems associated with drug delivery, nanotechnology has gained increasing interest in recent years. Nanosystems with different biological properties and compositions have been extensively investigated for drug delivery applications. Nanoparticles fabricated through various techniques have elevated therapeutic efficacy, provided stability to the drugs and proved capable of targeting the cells and controlled release inside the cell. Polymeric nanoparticles have shown increased development and usage in drug delivery as well as in diagnostics in recent decades.
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Affiliation(s)
- Imran Khan
- Department of Food Science and Biotechnology, School of Bio-convergence Science and Technology, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Momin Khan
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | | | - Deog-Hwan Oh
- Department of Food Science and Biotechnology, School of Bio-convergence Science and Technology, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea.
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German SV, Bratashov DN, Navolokin NA, Kozlova AA, Lomova MV, Novoselova MV, Burilova EA, Zyev VV, Khlebtsov BN, Bucharskaya AB, Terentyuk GS, Amirov RR, Maslyakova GN, Sukhorukov GB, Gorin DA. In vitro and in vivo MRI visualization of nanocomposite biodegradable microcapsules with tunable contrast. Phys Chem Chem Phys 2016; 18:32238-32246. [DOI: 10.1039/c6cp03895f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tunable MRI contrast of microcapsules was obtained.
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Affiliation(s)
| | | | - Nikita A. Navolokin
- Saratov State University
- Saratov
- Russia
- Saratov State Medical University
- Saratov
| | | | | | | | | | - Victor V. Zyev
- Saratov State University
- Saratov
- Russia
- Saratov State Medical University
- Saratov
| | - Boris N. Khlebtsov
- Saratov State University
- Saratov
- Russia
- Institute of Biochemistry and Physiology of Plants and Microorganisms
- Russia
| | | | | | - Rustem R. Amirov
- Alexander Butlerov Institute of Chemistry
- Kazan Federal University
- Kazan
- Russia
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37
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Martins AM, Tanbour R, Elkhodiry MA, Husseini GA. Ultrasound-induced doxorubicin release from folate-targeted and non-targeted P105 micelles: a modeling study. EUROPEAN JOURNAL OF NANOMEDICINE 2016. [DOI: 10.1515/ejnm-2015-0045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
AbstractThe aim of this work is to study the kinetics of ultrasound (70 kHz) – using a kinetic model that takes into account cavitation events and drug re-encapsulation upon the cessation of the acoustic field. The simulation allowed the determination of three parameters
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38
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Panova IG, Spiridonov VV, Kaplan IB, Trubinov SS, Elizova NV, Melnichenko AA, Orekhov AN, Yaroslavov AA. Inhibitory effect of polyethylene oxide and polypropylene oxide triblock copolymers on aggregation and fusion of atherogenic low density lipoproteins. BIOCHEMISTRY (MOSCOW) 2015; 80:1057-64. [DOI: 10.1134/s0006297915080118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Nevirapine loaded Poloxamer 407/Pluronic P123 mixed micelles: Optimization of formulation and in vitro evaluation. Colloids Surf B Biointerfaces 2015; 129:100-6. [DOI: 10.1016/j.colsurfb.2015.03.030] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 02/21/2015] [Accepted: 03/10/2015] [Indexed: 01/07/2023]
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40
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Hassanzadeh S, Khoee S, Beheshti A, Hakkarainen M. Release of quercetin from micellar nanoparticles with saturated and unsaturated core forming polyesters — A combined computational and experimental study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 46:417-26. [DOI: 10.1016/j.msec.2014.10.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 09/16/2014] [Accepted: 10/21/2014] [Indexed: 11/26/2022]
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41
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Nanoparticles and the blood-brain barrier: advancing from in-vitro models towards therapeutic significance. Pharm Res 2014; 32:1161-85. [PMID: 25446769 DOI: 10.1007/s11095-014-1545-6] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 10/06/2014] [Indexed: 01/12/2023]
Abstract
The blood-brain barrier is a unique cell-based restrictive barrier that prevents the entry of many substances, including most therapeutics, into the central nervous system. A wide range of nanoparticulate delivery systems have been investigated with the aim of targeting therapeutics (drugs, nucleic acids, proteins) to the brain following administration by various routes. This review provides a comprehensive description of the design and formulation of these nanoparticles including the rationale behind individual approaches. In addition, the ability of currently available in-vitro BBB models to accurately predict the in-vivo performance of targeted nanoparticles is critically assessed.
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42
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Husseini GA, Pitt WG, Martins AM. Ultrasonically triggered drug delivery: breaking the barrier. Colloids Surf B Biointerfaces 2014; 123:364-86. [PMID: 25454759 DOI: 10.1016/j.colsurfb.2014.07.051] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 07/23/2014] [Accepted: 07/24/2014] [Indexed: 12/21/2022]
Abstract
The adverse side-effects of chemotherapy can be minimized by delivering the therapeutics in time and space to only the desired target site. Ultrasound offers one fairly non-invasive method of accomplishing such precise delivery because its energy can disrupt nanosized containers that are designed to sequester the drug until the ultrasonic event. Such containers include micelles, liposomes and solid nanoparticles. Conventional micelles and liposomes are less acoustically sensitive to ultrasound because the strongest forces associated with ultrasound are generated by gas-liquid interfaces, which both of these conventional constructs lack. Acoustically activated carriers often incorporate a gas phase, either actively as preformed bubbles, or passively such as taking advantage of dissolved gasses that form bubbles upon insonation. Newer concepts include using liquids that form gas when insonated. This review focuses on the ultrasonically activated delivery of therapeutics from micelles, liposomes and solid particles. In vitro and in vivo results are summarized and discussed. Novel structural concepts from micelles and liposomes are presented. Mechanisms of ultrasonically activated release are discussed. The future of ultrasound in drug delivery is envisioned.
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Affiliation(s)
| | | | - Ana M Martins
- American University of Sharjah, Sharjah, United Arab Emirates
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Chong JYT, Mulet X, Postma A, Keddie DJ, Waddington LJ, Boyd BJ, Drummond CJ. Novel RAFT amphiphilic brush copolymer steric stabilisers for cubosomes: poly(octadecyl acrylate)-block-poly(polyethylene glycol methyl ether acrylate). SOFT MATTER 2014; 10:6666-6676. [PMID: 25058647 DOI: 10.1039/c4sm01064g] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Copolymers, particularly Pluronics®, are typically used to sterically stabilise colloidal nanostructured particles composed of a lyotropic liquid crystalline bicontinuous cubic phase (cubosomes). There is a need to design and assess new functionalisable stabilisers for these colloidal drug delivery systems. Six amphiphilic brush copolymers, poly(octadecyl acrylate)-block-poly(polyethylene glycol methyl ether acrylate) (P(ODA)-b-P(PEGA-OMe)), synthesised by reversible addition-fragmentation chain transfer (RAFT), were assessed as novel steric stabilisers for cubosomes. It was found that increasing the density of PEG on the nanostructured particle surface by incorporating a PEG brush design (i.e., brush copolymer), provided comparable and/or increased stabilisation effectiveness compared to a linear PEG structure, Pluronic® F127, which is extensively used for steric stabilisation of cubosomes. Assessment was conducted both prior to and following the removal of the dodecyl trithiocarbonate end-group, by free radical-induced reduction. The reduced (P(ODA)-b-P(PEGA-OMe) copolymers were more effective steric stabilisers for phytantriol and monoolein colloidal particle dispersions than their non-reduced analogues. High throughput characterisation methodologies, including an accelerated stability assay (ASA) and synchrotron small angle X-ray scattering (SAXS), were implemented in this study for the rapid assessment of steric stabiliser effectiveness and lyotropic liquid crystalline phase identification. Phytantriol cubosomes stabilised with P(ODA)-b-P(PEGA-OMe) copolymers exhibited a double diamond cubic phase (Q(2)(D)), whilst monoolein cubosomes exhibited a primitive cubic phase (Q(2)(P)), analogous to those formed using Pluronic® F127.
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Affiliation(s)
- Josephine Y T Chong
- CSIRO Materials Science and Engineering, Private Bag 10, Clayton, VIC 3169, Australia.
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Chen J, Yang XQ, Meng YZ, Huang HH, Qin MY, Yan DM, Zhao YD, Ma ZY. In vitro and in vivo CT imaging using bismuth sulfide modified with a highly biocompatible Pluronic F127. NANOTECHNOLOGY 2014; 25:295103. [PMID: 24990410 DOI: 10.1088/0957-4484/25/29/295103] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Probe bismuth sulfide modified with Pluronic F127 (Bi2S3-PF127), which has high biocompatibility and dispersibility, is synthesized using triblock copolymer Pluronic F127 to modify hydrophobic Bi2S3 nanoparticles that are prepared by a hot injection method. TEM results show that most of the probe has a length of about 14.85 ± 1.70 nm and a breadth of about 4.79 ± 0.63 nm. After injected into the tail vein of a mouse, the probe has obvious CT contrast enhancement capability from x-ray CT imaging results. Meanwhile, the probe's in vivo toxicity is also studied. It is found that hematoxylin and eosin stains of major organs have no change. A biochemical analysis (alanine aminotransferase and aspartate aminotransferase) prove the probe has no adverse effects. The results of a blood analysis (white blood cell count, red blood cell count, hemoglobin, and platelet count) are also normal. The biological distribution of Bi by ICP-AES shows that most of nanoparticles are cleaned out after injection 48 h, and the circulation half-life of the probe is 5.0 h, suggesting that Bi2S3-PF127 has a long circulation and indicating that the Bi2S3-PF127 probe has good biocompatibility and safety.
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45
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Yi X, Kabanov AV. Brain delivery of proteins via their fatty acid and block copolymer modifications. J Drug Target 2014; 21:940-55. [PMID: 24160902 DOI: 10.3109/1061186x.2013.847098] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
It is well known that hydrophobic small molecules penetrate cell membranes better than hydrophilic molecules. Amphiphilic molecules that dissolve both in lipid and aqueous phases are best suited for membrane transport. Transport of biomacromolecules across physiological barriers, e.g. the blood-brain barrier, is greatly complicated by the unique structure and function of such barriers. Two decades ago we adopted a simple philosophy that to increase protein delivery to the brain one needs to modify this protein with hydrophobic moieties. With this general idea we began modifying proteins (antibodies, enzymes, hormones, etc.) with either hydrophobic fatty acid residues or amphiphilic block copolymer moieties, such as poy(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (pluronics or poloxamers) and more recently, poly(2-oxasolines). This simple approach has resulted in impressive successes in CNS drug delivery. We present a retrospective overview of these works initiated in the Soviet Union in 1980s, and then continued in the United States and other countries. Notably some of the early findings were later corroborated by brain pharmacokinetic data. Industrial development of several drug candidates employing these strategies has followed. Overall modification by hydrophobic fatty acids residues or amphiphilic block copolymers represents a promising and relatively safe strategy to deliver proteins to the brain.
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Affiliation(s)
- Xiang Yi
- Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill , Chapel Hill, NC , USA and
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46
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Agile delivery of protein therapeutics to CNS. J Control Release 2014; 190:637-63. [PMID: 24956489 DOI: 10.1016/j.jconrel.2014.06.017] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 06/10/2014] [Accepted: 06/13/2014] [Indexed: 12/11/2022]
Abstract
A variety of therapeutic proteins have shown potential to treat central nervous system (CNS) disorders. Challenge to deliver these protein molecules to the brain is well known. Proteins administered through parenteral routes are often excluded from the brain because of their poor bioavailability and the existence of the blood-brain barrier (BBB). Barriers also exist to proteins administered through non-parenteral routes that bypass the BBB. Several strategies have shown promise in delivering proteins to the brain. This review, first, describes the physiology and pathology of the BBB that underscore the rationale and needs of each strategy to be applied. Second, major classes of protein therapeutics along with some key factors that affect their delivery outcomes are presented. Third, different routes of protein administration (parenteral, central intracerebroventricular and intraparenchymal, intranasal and intrathecal) are discussed along with key barriers to CNS delivery associated with each route. Finally, current delivery strategies involving chemical modification of proteins and use of particle-based carriers are overviewed using examples from literature and our own work. Whereas most of these studies are in the early stage, some provide proof of mechanism of increased protein delivery to the brain in relevant models of CNS diseases, while in few cases proof of concept had been attained in clinical studies. This review will be useful to broad audience of students, academicians and industry professionals who consider critical issues of protein delivery to the brain and aim developing and studying effective brain delivery systems for protein therapeutics.
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47
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Glavas L, Odelius K, Albertsson AC. Induced redox responsiveness and electroactivity for altering the properties of micelles without external stimuli. SOFT MATTER 2014; 10:4028-36. [PMID: 24737104 PMCID: PMC4159694 DOI: 10.1039/c4sm00258j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Control over micelle properties is vital in the field of drug delivery, and the ability to modify these properties in order to trigger dissociation is highly desirable. We prepared polymeric micelles with the ability to undergo dissociation over time without the need for external stimulation by incorporating an electroactive and redox responsive segment into amphiphilic copolymers. The incorporation of this segment also provides the ability to tailor the critical micelle concentration (CMC) and micelle size of the copolymers. Amphiphilic PEG-PLA copolymers were functionalized by coupling to an aniline pentamer in two different oxidation states (leucoemeraldine and emeraldine state). The incorporation of the electroactive and redox responsive aniline pentamer decreased the CMCs and the micelle size, independent of the oxidation state. However, the copolymers with the aniline pentamer in the leucoemeraldine state had significantly lower CMCs than the copolymers with the aniline pentamer in the emeraldine state. Simultaneously, stability tests performed on the functionalized micelles demonstrated the oxidation of the aniline segment, from the leucoemeraldine to the emeraldine state, over time. The oxidation led to an increase in the CMC, and the copolymers could thereby represent an excellent starting point for triggering drug release without external stimuli.
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Affiliation(s)
- Lidija Glavas
- Fiber and Polymer Technology , School of Chemical Science and Engineering , KTH , Royal Institute of Technology , SE-100 44 Stockholm , Sweden .
| | - Karin Odelius
- Fiber and Polymer Technology , School of Chemical Science and Engineering , KTH , Royal Institute of Technology , SE-100 44 Stockholm , Sweden .
| | - Ann-Christine Albertsson
- Fiber and Polymer Technology , School of Chemical Science and Engineering , KTH , Royal Institute of Technology , SE-100 44 Stockholm , Sweden .
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48
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Study of the Interaction Between Promazine Hydrochloride and Surfactant (Conventional/Gemini) Mixtures at Different Temperatures. J SOLUTION CHEM 2014. [DOI: 10.1007/s10953-014-0174-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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49
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Park K. Controlled drug delivery systems: past forward and future back. J Control Release 2014; 190:3-8. [PMID: 24794901 DOI: 10.1016/j.jconrel.2014.03.054] [Citation(s) in RCA: 364] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 03/23/2014] [Accepted: 03/29/2014] [Indexed: 11/15/2022]
Abstract
Controlled drug delivery technology has progressed over the last six decades. This progression began in 1952 with the introduction of the first sustained release formulation. The 1st generation of drug delivery (1950-1980) focused on developing oral and transdermal sustained release systems and establishing controlled drug release mechanisms. The 2nd generation (1980-2010) was dedicated to the development of zero-order release systems, self-regulated drug delivery systems, long-term depot formulations, and nanotechnology-based delivery systems. The latter part of the 2nd generation was largely focused on studying nanoparticle formulations. The Journal of Controlled Release (JCR) has played a pivotal role in the 2nd generation of drug delivery technologies, and it will continue playing a leading role in the next generation. The best path towards a productive 3rd generation of drug delivery technology requires an honest, open dialog without any preconceived ideas of the past. The drug delivery field needs to take a bold approach to designing future drug delivery formulations primarily based on today's necessities, to produce the necessary innovations. The JCR provides a forum for sharing the new ideas that will shape the 3rd generation of drug delivery technology.
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Affiliation(s)
- Kinam Park
- Purdue University, Departments of Biomedical Engineering and Pharmaceutics, West Lafayette, IN 47907, USA.
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50
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Noori S, Naqvi AZ, Ansari WH, Kabir-ud-Din. Experimental and theoretical approach to cationic drug-anionic gemini surfactant systems in aqueous medium. Colloids Surf B Biointerfaces 2014; 115:71-8. [DOI: 10.1016/j.colsurfb.2013.11.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 11/07/2013] [Accepted: 11/12/2013] [Indexed: 11/25/2022]
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