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Banaei G, García-Rodríguez A, Tavakolpournegari A, Martín-Pérez J, Villacorta A, Marcos R, Hernández A. The release of polylactic acid nanoplastics (PLA-NPLs) from commercial teabags. Obtention, characterization, and hazard effects of true-to-life PLA-NPLs. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131899. [PMID: 37354720 DOI: 10.1016/j.jhazmat.2023.131899] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/30/2023] [Accepted: 06/18/2023] [Indexed: 06/26/2023]
Abstract
This study investigates MNPLs release from commercially available teabags and their effects on both undifferentiated monocultures of Caco-2 and HT29 and in the in vitro model of the intestinal Caco-2/HT29 barrier. Teabags were subjected to mechanical and thermodynamic forces simulating the preparation of a cup of tea. The obtained dispersions were characterized using TEM, SEM, DLS, LDV, NTA, and FTIR. Results confirmed that particles were in the nano-range, constituted by polylactic acid (PLA-NPLs), and about one million of PLA-NPLs per teabag were quantified. PLA-NPLs internalization, cytotoxicity, intracellular reactive oxygen species induction, as well as structural and functional changes in the barrier were assessed. Results show that PLA-NPLs present high uptake rates, especially in mucus-secretor cells, and bio-persisted in the tissue after 72 h of exposure. Although no significant cytotoxicity was observed after the exposure to 100 µg/mL PLA-NPLs during 48 h, a slight barrier disruption could be detected at short-time periods. The present work reveals new insights into the safety of polymer-based teabags, the behavior of true-to-life MNPLs in the human body, as well as new questions on how repeated and prolonged exposures could affect the structure and function of the human intestinal epithelium.
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Affiliation(s)
- Gooya Banaei
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Alba García-Rodríguez
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Alireza Tavakolpournegari
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Juan Martín-Pérez
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Aliro Villacorta
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain; Facultad de Recursos Naturales Renovables, Universidad Arturo Prat, Iquique, Chile
| | - Ricard Marcos
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.
| | - Alba Hernández
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.
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Tran P, Nguyen TN, Lee Y, Tran PN, Park JS. Docetaxel-loaded PLGA nanoparticles to increase pharmacological sensitivity in MDA-MB-231 and MCF-7 breast cancer cells. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2021; 25:479-488. [PMID: 34448465 PMCID: PMC8405438 DOI: 10.4196/kjpp.2021.25.5.479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/04/2021] [Accepted: 05/17/2021] [Indexed: 11/23/2022]
Abstract
This study aimed to develop docetaxel (DTX) loaded poly(lactic-co-glycolic acid) (PLGA) nanoparticles (DTX-NPs) and to evaluate the different pharmacological sensitivity of NPs to MCF-7 and MDA-MB-231 breast cancer cells. NPs containing DTX or coumarin-6 were prepared by the nanoprecipitation method using PLGA as a polymer and d-α-tocopherol polyethylene glycol 1000 succinate (TPGS) as a surfactant. The physicochemical properties of NPs were characterized. In vitro anticancer effect and cellular uptake were evaluated in breast cancer cells. The particle size and zeta potential of the DTX-NPs were 160.5 ± 3.0 nm and –26.7 ± 0.46 mV, respectively. The encapsulation efficiency and drug loading were 81.3 ± 1.85% and 10.6 ± 0.24%, respectively. The in vitro release of DTX from the DTX-NPs was sustained at pH 7.4 containing 0.5% Tween 80. The viability of MDA-MB-231 and MCF-7 cells with DTX-NPs was 37.5 ± 0.5% and 30.3 ± 1.13%, respectively. The IC50 values of DTX-NPs were 3.92- and 6.75-fold lower than that of DTX for MDA-MB-231 cells and MCF-7 cells, respectively. The cellular uptake of coumarin-6-loaded PLGA-NPs in MCF-7 cells was significantly higher than that in MDA-MB-231 cells. The pharmacological sensitivity in breast cancer cells was higher on MCF-7 cells than on MDA-MB-231 cells. In conclusion, we successfully developed DTX-NPs that showed a great potential for the controlled release of DTX. DTX-NPs are an effective formulation for improving anticancer effect in breast cancer cells.
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Affiliation(s)
- Phuong Tran
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| | - Thu Nhan Nguyen
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| | - Yeseul Lee
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| | - Phan Nhan Tran
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| | - Jeong-Sook Park
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
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Mohyeldin SM, Samy WM, Ragab D, Abdelmonsif DA, Aly RG, Elgindy NA. Hybrid lipid core chitosan-TPGS shell nanocomposites as a promising integrated nanoplatform for enhanced oral delivery of sulpiride in depressive disorder therapy. Int J Biol Macromol 2021; 188:432-449. [PMID: 34375663 DOI: 10.1016/j.ijbiomac.2021.08.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 08/02/2021] [Accepted: 08/04/2021] [Indexed: 02/06/2023]
Abstract
Sulpiride (SUL), a benzamide derivative, acts as a multitarget drug with extensive biological properties. However, being a P-glycoprotein efflux substrate with a limited oral bioavailability imposes a challenge to its clinical efficacy. The current research explores the impact of tailored hybrid lipid-polysaccharide nanocomposites in augmenting the biological performance of SUL. Chitosan-graft-tocopherol polyethylene glycol 1000 succinate (TPGS) copolymers were synthesized and integrated as a polysaccharide shell into a SUL-loaded lipid nanocore. The optimized nanohybrids revealed a nanocore-shell structure with 110.1 nm particle size, 23.7 mV zeta potential, 85.42% encapsulation efficiency, a pH-dependent-release profile, and an acceptable mucoadhesive tendency. Employing TPGS into the chitosan backbone alleviated the cellular internalization of nanohybrids into the Caco-2 intestinal cells and hence increased the intestinal permeation and the oral bioavailability of SUL by 3.3, and 8.7-folds, respectively. Reserpine-induced depression rat model confirmed the superior antidepressant activity of nanohybrids, compared with free SUL and a marketed product. The nanohybrids exhibited 1.87- and 1.47-folds enhancement in both serotonin and dopamine levels, respectively. Additionally, nanohybrids were shown to attenuate brain oxidative stress state and SUL irritant effect on different body tissues. Overall, the newly tailored nanohybrids pave the way for an advance in the field of oral drug delivery.
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Affiliation(s)
- Salma M Mohyeldin
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
| | - Wael M Samy
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Doaa Ragab
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Doaa A Abdelmonsif
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt; Centre of Excellence for Research in Regenerative Medicine and Applications (CERRMA), Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Rania G Aly
- Department of Surgical Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Nazik A Elgindy
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt; College of Pharmacy, Arab Academy for Science, Technology & Maritime Transport, Alexandria, Egypt
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Design and Development of D‒α‒Tocopheryl Polyethylene Glycol Succinate‒ block‒Poly(ε-Caprolactone) (TPGS- b-PCL) Nanocarriers for Solubilization and Controlled Release of Paclitaxel. Molecules 2021; 26:molecules26092690. [PMID: 34064416 PMCID: PMC8125698 DOI: 10.3390/molecules26092690] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/24/2021] [Accepted: 05/01/2021] [Indexed: 11/29/2022] Open
Abstract
The objective of this study was to synthesize and characterize a set of biodegradable block copolymers based on TPGS-block-poly(ε-caprolactone) (TPGS-b-PCL) and to assess their self-assembled structures as a nanodelivery system for paclitaxel (PAX). The conjugation of PCL to TPGS was hypothesized to increase the stability and the drug solubilization characteristics of TPGS micelles. TPGS-b-PCL copolymer with various PCL/TPGS ratios were synthesized via ring opening bulk polymerization of ε-caprolactone using TPGS, with different molecular weights of PEG (1–5 kDa), as initiators and stannous octoate as a catalyst. The synthesized copolymers were characterized using 1H NMR, GPC, FTIR, XRD, and DSC. Assembly of block copolymers was achieved via the cosolvent evaporation method. The self-assembled structures were characterized for their size, polydispersity, and CMC using dynamic light scattering (DLS) technique. The results from the spectroscopic and thermal analyses confirmed the successful synthesis of the copolymers. Only copolymers that consisted of TPGS with PEG molecular weights ≥ 2000 Da were able to self-assemble and form nanocarriers of ≤200 nm in diameter. Moreover, TPGS2000-b-PCL4000, TPGS3500-b-PCL7000, and TPGS5000-b-PCL15000 micelles enhanced the aqueous solubility of PAX from 0.3 µg/mL up to 88.4 ug/mL in TPGS5000-b-PCL15000. Of the abovementioned micellar formulations, TPGS5000-b-PCL15000 showed the slowest in vitro release of PAX. Specifically, the PAX-loaded TPGS5000-b-PCL15000 micellar formulation showed less than 10% drug release within the first 12 h, and around 36% cumulative drug release within 72 h compared to 61% and 100% PAX release, respectively, from the commercially available formulation (Ebetaxel®) at the same time points. Our results point to a great potential for TPGS-b-PCL micelles to efficiently solubilize and control the release of PAX.
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Development and optimization of vitamin E TPGS based PLGA nanoparticles for improved and safe ocular delivery of ketorolac. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102121] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Advancement on Sustained Antiviral Ocular Drug Delivery for Herpes Simplex Virus Keratitis: Recent Update on Potential Investigation. Pharmaceutics 2020; 13:pharmaceutics13010001. [PMID: 33374925 PMCID: PMC7821943 DOI: 10.3390/pharmaceutics13010001] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/11/2020] [Accepted: 12/15/2020] [Indexed: 12/19/2022] Open
Abstract
The eyes are the window to the world and the key to communication, but they are vulnerable to multitudes of ailments. More serious than is thought, corneal infection by herpes simplex viruses (HSVs) is a prevalent yet silent cause of blindness in both the paediatric and adult population, especially if immunodeficient. Globally, there are 1.5 million new cases and forty thousand visual impairment cases reported yearly. The Herpetic Eye Disease Study recommends topical antiviral as the front-line therapy for HSV keratitis. Ironically, topical eye solutions undergo rapid nasolacrimal clearance, which necessitates oral drugs but there is a catch of systemic toxicity. The hurdle of antiviral penetration to reach an effective concentration is further complicated by drugs’ poor permeability and complex layers of ocular barriers. In this current review, novel delivery approaches for ocular herpetic infection, including nanocarriers, prodrugs, and peptides are widely investigated, with special focus on advantages, challenges, and recent updates on in situ gelling systems of ocular HSV infections. In general congruence, the novel drug delivery systems play a vital role in prolonging the ocular drug residence time to achieve controlled release of therapeutic agents at the application site, thus allowing superior ocular bioavailability yet fewer systemic side effects. Moreover, in situ gel functions synergistically with nanocarriers, prodrugs, and peptides. The findings support that novel drug delivery systems have potential in ophthalmic drug delivery of antiviral agents, and improve patient convenience when prolonged and chronic topical ocular deliveries are intended.
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Yim MS, Soung NK, Han EH, Min JY, Han H, Son EJ, Kim HN, Kim B, Bang JK, Ryu EK. Vitamin E-Conjugated Phosphopeptide Inhibitor of the Polo-Box Domain of Polo-Like Kinase 1. Mol Pharm 2019; 16:4867-4877. [PMID: 31663746 DOI: 10.1021/acs.molpharmaceut.9b00757] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Polo-like kinase 1 (Plk1) regulates cell cycle and cell proliferation, and is currently considered a potential biomarker in clinical trials for many cancers. A characteristic feature of Plks is their C-terminal polo-box domain (PBD). Pro-Leu-His-Ser-pThr (PLHS[pT])-the phosphopeptide inhibitor of the PBD of Plk1-induces apoptosis in cancer cells. However, because of the low cell membrane-penetration ability of PLHS[pT], new approaches are required to overcome these drawbacks. We therefore developed a vitamin E (VE) conjugate that is biodegradable by intracellular redox enzymes as an anticancer drug-delivery system. To ensure high efficiency of membrane penetration, we synthesized VE-S-S-PLHS[pT]KY (1) by conjugating PLHS[pT] to VE via a disulfide bond. We found that 1 penetrated cancer cell membranes, blocked cancer cell proliferation, and induced apoptosis in cancer cells through cell cycle arrest in the G2/M phase. We synthesized a radiolabeled peptide (124I-1), and the radioligand was evaluated in in vivo tumor uptake using positron emission tomography. This study shows that combination conjugates are an excellent strategy for specifically targeting Plk PBD. These conjugates have a dual function, with possible uses in anticancer therapy and tumor diagnosis.
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Affiliation(s)
- Min Su Yim
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - Nak Kyun Soung
- Anticancer Agent Research Center, World Class Institute, Korean Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea
| | - Eun Hee Han
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - Jin-Young Min
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - HoJin Han
- Anticancer Agent Research Center, World Class Institute, Korean Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea
| | - Eun-Ju Son
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - Hak Nam Kim
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - BoYeon Kim
- Anticancer Agent Research Center, World Class Institute, Korean Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea
| | - Jeong Kyu Bang
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - Eun Kyoung Ryu
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
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Casalini T, Rossi F, Castrovinci A, Perale G. A Perspective on Polylactic Acid-Based Polymers Use for Nanoparticles Synthesis and Applications. Front Bioeng Biotechnol 2019; 7:259. [PMID: 31681741 PMCID: PMC6797553 DOI: 10.3389/fbioe.2019.00259] [Citation(s) in RCA: 174] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 09/26/2019] [Indexed: 11/18/2022] Open
Abstract
Polylactic acid (PLA)-based polymers are ubiquitous in the biomedical field thanks to their combination of attractive peculiarities: biocompatibility (degradation products do not elicit critical responses and are easily metabolized by the body), hydrolytic degradation in situ, tailorable properties, and well-established processing technologies. This led to the development of several applications, such as bone fixation screws, bioresorbable suture threads, and stent coating, just to name a few. Nanomedicine could not be unconcerned by PLA-based materials as well, where their use for the synthesis of nanocarriers for the targeted delivery of hydrophobic drugs emerged as a new promising application. The purpose of the here presented review is two-fold: on one side, it aims at providing a broad overview of PLA-based materials and their properties, which allow them gaining a leading role in the biomedical field; on the other side, it offers a specific focus on their recent use in nanomedicine, highlighting opportunities and perspectives.
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Affiliation(s)
- Tommaso Casalini
- Polymer Engineering Laboratory, Department of Innovative Technologies, Institute for Mechanical Engineering and Materials Technology, University of Applied Sciences of Southern Switzerland, Manno, Switzerland
| | - Filippo Rossi
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Milan, Italy
| | - Andrea Castrovinci
- Polymer Engineering Laboratory, Department of Innovative Technologies, Institute for Mechanical Engineering and Materials Technology, University of Applied Sciences of Southern Switzerland, Manno, Switzerland
| | - Giuseppe Perale
- Polymer Engineering Laboratory, Department of Innovative Technologies, Institute for Mechanical Engineering and Materials Technology, University of Applied Sciences of Southern Switzerland, Manno, Switzerland
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
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Lei C, Davoodi P, Zhan W, Chow PKH, Wang CH. Development of Nanoparticles for Drug Delivery to Brain Tumor: The Effect of Surface Materials on Penetration Into Brain Tissue. J Pharm Sci 2019; 108:1736-1745. [DOI: 10.1016/j.xphs.2018.12.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/01/2018] [Accepted: 12/04/2018] [Indexed: 10/27/2022]
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Trastuzumab decorated TPGS-g-chitosan nanoparticles for targeted breast cancer therapy. Colloids Surf B Biointerfaces 2019; 173:366-377. [DOI: 10.1016/j.colsurfb.2018.10.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/27/2018] [Accepted: 10/02/2018] [Indexed: 02/07/2023]
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11
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Alkholief M, Albasit H, Alhowyan A, Alshehri S, Raish M, Abul Kalam M, Alshamsan A. Employing a PLGA-TPGS based nanoparticle to improve the ocular delivery of Acyclovir. Saudi Pharm J 2018; 27:293-302. [PMID: 30766442 PMCID: PMC6362158 DOI: 10.1016/j.jsps.2018.11.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 11/22/2018] [Indexed: 11/27/2022] Open
Abstract
Delivering drugs via the ocular route has always been a challenge for poorly soluble drugs. The various anatomical and physiological barriers in the eye cavity hinder the residence of drugs within the corneal and precorneal regions. In this study, the nanosystem that could sufficiently deliver the poorly soluble Acyclovir topically via ocular route. Our nanosystem is composed of the biocompatible PLGA polymer stabilized with TPGS which possess a high emulsifying capacity and is also known as P-gp inhibitor. The optimized nanoparticles were prepared with 0.3% TPGS and had particle-size of 262.3 nm, zeta-potential of +15.14 mV. The physicochemical-characterization, ex vivo transcorneal permeation, ocular-irritation and Acyclovir ocular-availability, following topical ocular application of PLGA-NPs in rabbit eyes, were performed. The tested parameters and irritation by Draize's test suggested the suitability and safety of PLGA-NPs for ocular use. An ultrahigh performance liquid chromatographic method was developed, validated, and applied to quantify Acyclovir in aqueous humor which was shown to be significantly higher (p < 0.05) using the developed nanoparticles as compared to Acyclovir-aqueous suspension following their single topical ocular administration. Noticeable 2.78-, 1.71- and 2.2-times increased values of AUC0-24h, t1/2 (h) and MRT0-24h were found, respectively, with the PLGA-TPGS-NPs as compared to ACY-AqS. These results demonstrate the superiority of delivering Acyclovir using a nanosystem compared to conventional methods.
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Affiliation(s)
- Musaed Alkholief
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Hammam Albasit
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Adel Alhowyan
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box: 2457, Riyadh 11451, Saudi Arabia
| | - Mohammad Raish
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box: 2457, Riyadh 11451, Saudi Arabia
| | - Mohd Abul Kalam
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Aws Alshamsan
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Zhou M, Zhang X, Xie J, Qi R, Lu H, Leporatti S, Chen J, Hu Y. pH-Sensitive Poly(β-amino ester)s Nanocarriers Facilitate the Inhibition of Drug Resistance in Breast Cancer Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E952. [PMID: 30463238 PMCID: PMC6267427 DOI: 10.3390/nano8110952] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/13/2018] [Accepted: 11/14/2018] [Indexed: 12/14/2022]
Abstract
Multidrug resistance (MDR) remains an unmet challenge in chemotherapy. Stimuli-responsive nanocarriers emerge as a promising tool to overcome MDR. Herein, pH-sensitive poly(β-amino ester)s polymers (PHP)-based micellar nanoparticles were synthesized for enhanced doxorubicin (DOX) delivery in drug resistant breast cancer MCF-7/ADR cells. DOX-loaded PHP micelles showed rapid cell-internalization and lysosomal escape in MCF-7/ADR cells. The cytotoxicity assays showed relatively higher cell inhibition of DOX-loaded PHP micelles than that of free DOX against MCF-7/ADR cells. Further mechanistic studies showed that PHP micelles were able to inhibit P-glycoprotein (P-gp) activity by lowering mitochondrial membrane potentials and ATP levels. These results suggested that the enhanced antitumor effect might be attributed to PHP-mediated lysosomal escape and drug efflux inhibition. Therefore, PHP would be a promising pH-responsive nanocarrier for enhanced intracellular drug delivery and overcoming MDR in cancer cells.
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Affiliation(s)
- Mengxue Zhou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xingcai Zhang
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
| | - Jin Xie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
| | - Rongxiang Qi
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
| | - Huiru Lu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
| | - Stefano Leporatti
- CNR Nanotec-Istituto di Nanotecnologia, Polo di Nanotecnologia, 73100 Lecce, Italy.
| | - Jun Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yi Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multidisciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
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Pannico M, Calarco A, Peluso G, Musto P. Functionalized Gold Nanoparticles as Biosensors for Monitoring Cellular Uptake and Localization in Normal and Tumor Prostatic Cells. BIOSENSORS 2018; 8:E87. [PMID: 30287746 PMCID: PMC6316160 DOI: 10.3390/bios8040087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/27/2018] [Accepted: 09/29/2018] [Indexed: 11/16/2022]
Abstract
In the present contribution the fabrication and characterization of functionalized gold nanospheres of uniform shape and controlled size is reported. These nano-objects are intended to be used as Surface Enhanced Raman Spectroscopy (SERS) sensors for in-vitro cellular uptake and localization. Thiophenol was used as molecular reporter and was bound to the Au surface by a chemisorption process in aqueous solution. The obtained colloidal solution was highly stable and no aggregation of the single nanospheres into larger clusters was observed. The nanoparticles were incubated in human prostatic cells with the aim of developing a robust, SERS-based method to differentiate normal and tumor cell lines. SERS imaging experiments showed that tumor cells uptake considerably larger amounts of nanoparticles in comparison to normal cells (up to 950% more); significant differences were also observed in the uptake kinetics. This largely different behaviour might be exploited in diagnostic and therapeutic applications.
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Affiliation(s)
- Marianna Pannico
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, 80078 Pozzuoli, Italy.
| | - Anna Calarco
- Institute of Agro-environmental and Forest Biology, National Research Council of Italy, 80131 Naples, Italy.
| | - Gianfranco Peluso
- Institute of Agro-environmental and Forest Biology, National Research Council of Italy, 80131 Naples, Italy.
| | - Pellegrino Musto
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, 80078 Pozzuoli, Italy.
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Zang X, Kagan L. Physiologically-based modeling and interspecies prediction of paclitaxel pharmacokinetics. J Pharmacokinet Pharmacodyn 2018; 45:577-592. [PMID: 29671170 DOI: 10.1007/s10928-018-9586-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 04/05/2018] [Indexed: 12/20/2022]
Abstract
The objective was to develop a physiologically-based pharmacokinetic (PBPK) model to characterize the whole-body disposition of paclitaxel (formulated in Cremophor EL and ethanol-Taxol®) in mice and to evaluate the utility of this model for predicting pharmacokinetics in other species. Published studies that reported paclitaxel plasma and tissue concentration-time data following single intravenous bolus administration of Taxol® to mice were used; and the PBPK model included plasma, liver, lungs, kidneys, spleen, heart, gastrointestinal tract, and remainder compartments. The final model resulted in a good description of the experimental plasma and tissues data in mice, where all tissues were represented by a single compartment, except the remainder that included two sub-compartments. The predictive performance of the PBPK model was assessed by evaluating its utility in predicting pharmacokinetics of paclitaxel in rats and humans. The relationship between species body weights (mice, rats, rabbits, and humans) and plasma clearance was determined by power-based regression, and resulting allometric exponent was 0.86. The model demonstrated reasonable predictions of plasma and tissue paclitaxel concentration-time profiles in rats and plasma profiles in humans. The proposed PBPK model represents an important basis that can be further utilized for characterization of novel formulations of paclitaxel.
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Affiliation(s)
- Xiaowei Zang
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ, 08854, USA
| | - Leonid Kagan
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ, 08854, USA.
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15
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Wang F, Porter M, Konstantopoulos A, Zhang P, Cui H. Preclinical development of drug delivery systems for paclitaxel-based cancer chemotherapy. J Control Release 2017; 267:100-118. [PMID: 28958854 PMCID: PMC5723209 DOI: 10.1016/j.jconrel.2017.09.026] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 09/12/2017] [Accepted: 09/18/2017] [Indexed: 12/28/2022]
Abstract
Paclitaxel (PTX) is one of the most successful drugs ever used in cancer chemotherapy, acting against a variety of cancer types. Formulating PTX with Cremophor EL and ethanol (Taxol®) realized its clinical potential, but the formulation falls short of expectations due to side effects such as peripheral neuropathy, hypotension, and hypersensitivity. Abraxane®, the albumin bound PTX, represents a superior replacement of Taxol® that mitigates the side effects associated with Cremophor EL. While Abraxane® is now considered a gold standard in chemotherapy, its 21% response rate leaves much room for further improvement. The quest for safer and more effective cancer treatments has led to the development of a plethora of innovative PTX formulations, many of which are currently undergoing clinical trials. In this context, we review recent development of PTX drug delivery systems and analyze the design principles underpinning each delivery strategy. We chose several representative examples to highlight the opportunities and challenges of polymeric systems, lipid-based formulations, as well as prodrug strategies.
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Affiliation(s)
- Feihu Wang
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States
| | - Michael Porter
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States
| | - Alexandros Konstantopoulos
- Department of Biomedical Engineering, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States
| | - Pengcheng Zhang
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States
| | - Honggang Cui
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States; Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, United States; Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, United States; Institute for NanoBiotechnology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States; Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, United States.
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16
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Chakraborty S, Kar N, Kumari L, De A, Bera T. Inhibitory effect of a new orally active cedrol-loaded nanostructured lipid carrier on compound 48/80-induced mast cell degranulation and anaphylactic shock in mice. Int J Nanomedicine 2017; 12:4849-4868. [PMID: 28744120 PMCID: PMC5511028 DOI: 10.2147/ijn.s132114] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Type I hypersensitivity is an allergic reaction characterized by the overactivity of the immune system provoked by normally harmless substances. Glucocorticoids, anti-histamines, or mast cell stabilizers are the choices of treatment for type I hypersensitivity. Even though these drugs have the anti-allergic effect, they can have several side effects in prolong use. Cedrol is the main bioactive compound of Cedrus atlantica with anti-tumor, anti-oxidative, and platelet-activating factor inhibiting properties. METHODS In this study, the preparation and anti-anaphylactic effect of cedrol-loaded nanostructured lipid carriers (NLCs) were evaluated. NLCs were prepared using Compritol® 888 ATO and triolein as lipid phase and vitamin E d-α-tocopherylpolyethyleneglycol 1000 succinate, soya lecithin, and sodium deoxycholate as nanoparticle stabilizers. RESULTS The average diameter of cedrol-NLCs (CR-NLCs) was 71.2 nm (NLC-C1) and 91.93 nm (NLC-C2). The particle had negative zeta potential values of -31.9 mV (NLC-C1) and -44.5 mV (NLC-C2). Type I anaphylactoid reaction in the animal model is significantly reduced by cedrol and cedrol-NLC. This in vivo activity of cedrol resulted that cedrol suppressed compound 48/80-induced peritoneal mast cell degranulation and histamine release from mast cells. Furthermore, compound 48/80-evoked Ca2+ uptake into mast cells was reduced in a dose-dependent manner by cedrol and cedrol-NLC. Studies confirmed that the inhibition of type I anaphylactoid response in vivo in mice and compound 48/80-induced mast cell activation in vitro are greatly enhanced by the loading of cedrol into the NLCs. The safety of cedrol and CR-NLC was evaluated as selectivity index (SI) with prednisolone and cromolyn sodium as positive control. SI of CR-NLC-C2 was found to be 11.5-fold greater than both prednisolone and cromolyn sodium. CONCLUSION Administration of CR-NLC 24 hours before the onset of anaphylaxis can prevent an anaphylactoid reaction. NLCs could be a promising vehicle for the oral delivery of cedrol to protect anaphylactic reactions.
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Affiliation(s)
- Shreyasi Chakraborty
- Laboratory of Nanomedicine, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, West Bengal, India
| | - Nabanita Kar
- Laboratory of Nanomedicine, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, West Bengal, India
| | - Leena Kumari
- Laboratory of Nanomedicine, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, West Bengal, India
| | - Asit De
- Laboratory of Nanomedicine, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, West Bengal, India
| | - Tanmoy Bera
- Laboratory of Nanomedicine, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, West Bengal, India
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17
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Xiong XY, Pan X, Tao L, Cheng F, Li ZL, Gong YC, Li YP. Enhanced effect of folated pluronic F87-PLA/TPGS mixed micelles on targeted delivery of paclitaxel. Int J Biol Macromol 2017; 103:1011-1018. [PMID: 28552723 DOI: 10.1016/j.ijbiomac.2017.05.136] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/10/2017] [Accepted: 05/23/2017] [Indexed: 12/31/2022]
Abstract
Targeted drug delivery systems have great potential to overcome the side effect and improve the bioavailability of conventional anticancer drugs. In order to further improve the antitumor efficacy of paclitaxel (PTX) loaded in folated Pluronic F87/poly(lactic acid) (FA-F87-PLA) micelles, D-α-tocopheryl poly(ethylene glycol) 1000 succinate (TPGS or Vitamin E TPGS) were added into FA-F87-PLA to form FA-F87-PLA/TPGS mixed micelles. The LE of PTX-loaded mixed micelles (13.5%) was highest in the mass ratio 5 to 3 of FA-F87-PLA to TPGS. The in vitro cytotoxicity assays indicated that the IC50 values for free PTX injections, PTX-loaded FA-F87-PLA micelles and PTX-loaded FA-F87-PLA/TPGS mixed micelles after 72h of incubation were 1.52, 0.42 and 0.037mg/L, respectively. The quantitative cellular uptake of coumarin 6-loaded FA-F87-PLA/TPGS and FA-F87-PLA micelles showed that the cellular uptake efficiency of mixed micelles was higher for 2 and 4h incubation, respectively. In vivo pharmacokinetic studies found that the AUC of PTX-loaded FA-F87-PLA/TPGS mixed micelles is almost 1.4 times of that of PTX-loaded FA-F87-PLA micelles. The decreased particle size and inhibition of P-glycoprotein effect induced by the addition of TPGS could result in enhancing the cellular uptake and improving the antitumor efficiency of PTX-loaded FA-F87-PLA/TPGS mixed micelles.
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Affiliation(s)
- Xiang Yuan Xiong
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China; School of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
| | - Xiaoqian Pan
- School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Long Tao
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Feng Cheng
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Zi Ling Li
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yan Chun Gong
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yu Ping Li
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China
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18
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Qin B, Liu L, Pan Y, Zhu Y, Wu X, Song S, Han G. PEGylated Solanesol for Oral Delivery of Coenzyme Q 10. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:3360-3367. [PMID: 28418660 DOI: 10.1021/acs.jafc.7b00165] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Coenzyme Q10 (CoQ10) is widely used in preventive or curative treatment of cardiovascular diseases. However, CoQ10 exhibits an extremely low solubility in aqueous medium as well as a poor oral bioavailability. Therefore, solanesyl poly(ethylene glycol) succinate (SPGS) and CoQ10 were formulated as CoQ10-SPGS micelles with a high content of CoQ10 to improve the bioavailability of CoQ10 in rat. Findings indicate that, in the CoQ10-SPGS micelles, SPGS is self-assembled into stable nanosized micelles with a CoQ10 loading capacity of more than 39%. The CoQ10-SPGS micelles exhibit an enhanced photostability upon exposure to simulated sunlight. In vivo experiments demonstrate that, as compared to that of the coarse suspensions of CoQ10, there was three-fold enhancement of oral bioavailability for CoQ10-loaded SPGS micelles depending on varying molecular weight of SPGS. In the encapsulation of CoQ10 by SPGS micelles, the self-assembled nanocarriers with strong muco-adhesive properties lead to increases in the solubility and oral absorption of lipophilic CoQ10 nanoparticles.
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Affiliation(s)
- Benkai Qin
- Institute of Pharmacy, Pharmacy College of Henan University , Jinming, Kaifeng, Henan 475001, China
| | - Lei Liu
- Institute of Pharmacy, Pharmacy College of Henan University , Jinming, Kaifeng, Henan 475001, China
| | - Yangyang Pan
- Institute of Pharmacy, Pharmacy College of Henan University , Jinming, Kaifeng, Henan 475001, China
| | - Yingchun Zhu
- Institute of Pharmacy, Pharmacy College of Henan University , Jinming, Kaifeng, Henan 475001, China
| | - Xiaohe Wu
- Institute of Pharmacy, Pharmacy College of Henan University , Jinming, Kaifeng, Henan 475001, China
| | - Shiyong Song
- Institute of Pharmacy, Pharmacy College of Henan University , Jinming, Kaifeng, Henan 475001, China
| | - Guang Han
- Institute of Pharmacy, Pharmacy College of Henan University , Jinming, Kaifeng, Henan 475001, China
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19
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Tabasum S, Noreen A, Kanwal A, Zuber M, Anjum MN, Zia KM. Glycoproteins functionalized natural and synthetic polymers for prospective biomedical applications: A review. Int J Biol Macromol 2017; 98:748-776. [PMID: 28111295 DOI: 10.1016/j.ijbiomac.2017.01.078] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 01/05/2017] [Accepted: 01/16/2017] [Indexed: 02/06/2023]
Abstract
Glycoproteins have multidimensional properties such as biodegradability, biocompatibility, non-toxicity, antimicrobial and adsorption properties; therefore, they have wide range of applications. They are blended with different polymers such as chitosan, carboxymethyl cellulose (CMC), polyvinyl pyrrolidone (PVP), polycaprolactone (PCL), heparin, polystyrene fluorescent nanoparticles (PS-NPs) and carboxyl pullulan (PC) to improve their properties like thermal stability, mechanical properties, resistance to pH, chemical stability and toughness. Considering the versatile charateristics of glycoprotein based polymers, this review sheds light on synthesis and characterization of blends and composites of glycoproteins, with natural and synthetic polymers and their potential applications in biomedical field such as drug delivery system, insulin delivery, antimicrobial wound dressing uses, targeting of cancer cells, development of anticancer vaccines, development of new biopolymers, glycoproteome research, food product and detection of dengue glycoproteins. All the technical scientific issues have been addressed; highlighting the recent advancement.
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Affiliation(s)
- Shazia Tabasum
- Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan
| | - Aqdas Noreen
- Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan
| | - Arooj Kanwal
- Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan
| | - Mohammad Zuber
- Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan
| | | | - Khalid Mahmood Zia
- Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan.
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20
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Ghosh S, Kar N, Bera T. Oleanolic acid loaded poly lactic co- glycolic acid- vitamin E TPGS nanoparticles for the treatment of Leishmania donovani infected visceral leishmaniasis. Int J Biol Macromol 2016; 93:961-970. [PMID: 27645930 DOI: 10.1016/j.ijbiomac.2016.09.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 08/24/2016] [Accepted: 09/05/2016] [Indexed: 01/20/2023]
Abstract
Oleanolic acid (OA) has low aqueous solubility and low permeability, which results poor bioavailability. To surmount the inadequacy, our aim was to fabricate oleanolic acid loaded poly lactic co- glycolic acid (PLGA)- d-α- tocopheryl polyethylene glycol 1000 succinate (TPGS) nanoparticles, which could be efficacious for the treatment of Leishmania donovani mediated visceral leishmaniasis (VL). OA loaded PLGA- TPGS nanoparticles were prepared by emulsion solvent evaporation technique. Cellular uptake was investigated. In vitro cumulative drug release study was carried out. In vitro susceptibility was confirmed against the amastigotes of Leishmania donovani AG83 wild and drug resistant strains. In vivo antileishmanial activity was evaluated against wild type amastigotes of L. donovani. OA loaded nanoparticles were successfully formulated. The highest drug loading was found to be 11.08%±0.35%. 85.66%±0.56% was the highest in vitro OA release for 30days among the formulations. In vivo study revealed that, 98.82±1.92% amastigote burden in spleen of BALB/c mice were suppressed by the polymeric nanoformulation of OA. Experimental OA nanoparticle formulation proved itself as an attractive carrier for OA which was significantly efficacious against both in vitro and in vivo amastigote form of Leishmania donovani than pure OA for chemotherapeutic intervention of visceral leishmaniasis.
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Affiliation(s)
- Santanu Ghosh
- Laboratory of Nanomedicine, Division of Pharmaceutical Biotech., Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700 032, West Bengal, India
| | - Nabanita Kar
- Laboratory of Nanomedicine, Division of Pharmaceutical Biotech., Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700 032, West Bengal, India
| | - Tanmoy Bera
- Laboratory of Nanomedicine, Division of Pharmaceutical Biotech., Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700 032, West Bengal, India.
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21
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Bone Regeneration after Treatment with Covering Materials Composed of Flax Fibers and Biodegradable Plastics: A Histological Study in Rats. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5146285. [PMID: 27597965 PMCID: PMC4997065 DOI: 10.1155/2016/5146285] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 07/14/2016] [Accepted: 07/17/2016] [Indexed: 11/17/2022]
Abstract
The aim of this study was to examine the osteogenic potential of new flax covering materials. Bone defects were created on the skull of forty rats. Materials of pure PLA and PCL and their composites with flax fibers, genetically modified producing PHB (PLA-transgen, PCL-transgen) and unmodified (PLA-wt, PCL-wt), were inserted. The skulls were harvested after four weeks and subjected to histological examination. The percentage of bone regeneration by using PLA was less pronounced than after usage of pure PCL in comparison with controls. After treatment with PCL-transgen, a large amount of new formed bone could be found. In contrast, PCL-wt decreased significantly the bone regeneration, compared to the other tested groups. The bone covers made of pure PLA had substantially less influence on bone regeneration and the bone healing proceeded with a lot of connective tissue, whereas PLA-transgen and PLA-wt showed nearly comparable amount of new formed bone. Regarding the histological data, the hypothesis could be proposed that PCL and its composites have contributed to a higher quantity of the regenerated bone, compared to PLA. The histological studies showed comparable bone regeneration processes after treatment with tested covering materials, as well as in the untreated bone lesions.
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22
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Countering drug resistance, infectious diseases, and sepsis using metal and metal oxides nanoparticles: Current status. Colloids Surf B Biointerfaces 2016; 146:70-83. [PMID: 27259161 DOI: 10.1016/j.colsurfb.2016.05.046] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 05/12/2016] [Accepted: 05/16/2016] [Indexed: 12/12/2022]
Abstract
One fourth of the global mortalities is still caused by microbial infections largely due to the development of resistance against conventional antibiotics among pathogens, the resurgence of old infectious diseases and the emergence of hundreds of new infectious diseases. The lack of funds and resources for the discovery of new antibiotics necessitates the search for economic and effective alternative antimicrobial agents. Metal and metal oxide nanoparticles including silver and zinc oxide exhibit remarkable antimicrobial activities against pathogens and hence are one of the most propitious alternative antimicrobial agents. These engineered nanomaterials are approved by regulatory agencies such as USFDA and Korea's FITI, for use as antimicrobial agents, supplementary antimicrobials, food packaging, skin care products, oral hygiene, and for fortifying devices prone to microbial infections. Nevertheless, detailed studies, on molecular and biochemical mechanisms underlying their antimicrobial activity are missing. To take the full advantage of this emerging technology selective antimicrobial activity of these nanoparticles against pathogens should be studied. Optimization of these nanomaterials through functionalization to increase their efficacy and biocompatibility is also required. Urgent in vivo studies on the toxicity of nanomaterials at realistic doses are also needed before their clinical translation.
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23
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Singh RP, Sharma G, Sonali, Agrawal P, Pandey BL, Koch B, Muthu MS. Transferrin receptor targeted PLA-TPGS micelles improved efficacy and safety in docetaxel delivery. Int J Biol Macromol 2016; 83:335-44. [DOI: 10.1016/j.ijbiomac.2015.11.081] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 11/26/2015] [Accepted: 11/27/2015] [Indexed: 12/19/2022]
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24
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Xiong XY, Tao L, Qin X, Li ZL, Gong YC, Li YP, Yang YJ, Liu ZY. Novel folated Pluronic/poly(lactic acid) nanoparticles for targeted delivery of paclitaxel. RSC Adv 2016. [DOI: 10.1039/c6ra09271c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In vivo prolonged circulation time and enhanced tumor resistant ability of targeted PTX-loaded FA–Pluronic–PLA nanoparticles.
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Affiliation(s)
- Xiang Yuan Xiong
- School of Life Science
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- China
| | - Long Tao
- School of Life Science
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- China
| | - Xiang Qin
- School of Life Science
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- China
| | - Zi Ling Li
- School of Life Science
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- China
| | - Yan Chun Gong
- School of Life Science
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- China
| | - Yu Ping Li
- School of Life Science
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- China
| | - Yi Jia Yang
- School of Life Science
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- China
| | - Zhi Yong Liu
- Laboratory Animal Science and Technology Center
- Jiangxi University of Traditional Chinese Medicine
- Nanchang 330045
- China
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25
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Shi W, Yuan Y, Chu M, Zhao S, Song Q, Mu X, Xu S, Zhang Z, Yang K. Radiosensitization of TPGS-emulsified docetaxel-loaded poly(lactic-co-glycolic acid) nanoparticles in CNE-1 and A549 cells. J Biomater Appl 2015; 30:1127-41. [PMID: 26608458 DOI: 10.1177/0885328215604081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Docetaxel is among the most effective radiosensitizers. It is widely used as radiosensitizer in many tumors, including head and neck carcinoma. Nevertheless, poor solubility and severe hypersensitivity limit its clinical use and its therapeutic effect remains to be improved. In this study, docetaxel-loaded polymeric nanoparticles were prepared by nanoprecipitation method to be new radiosensitizer with lower side effects and higher efficacy. The physiochemical characteristics of the nanoparticles were studied. Two human tumor cell lines which are resistant to radiotherapy were used in this research. We have compared the radioenhancement efficacy of docetaxel-loaded nanoparticles with docetaxel in A549 and CNE-1 cells. Compared with docetaxel, radiosensitization of docetaxel-loaded nanoparticles was improved significantly (sensitization enhancement ratio in A549 increased 1.24-fold to 1.68-fold when the radiation was applied 2 h after the drug, p < 0.01, sensitization enhancement ratio in CNE-1 increased 1.32-fold to 1.61-fold, p < 0.05). We explored the mechanisms for the radiosensitization efficiency and the difference between docetaxel and docetaxel-loaded poly(lactic-co-glycolic acid) (PLGA) nanoparticles. The improved radiosensitization efficacy was associated with enhanced G2/M arrest, promoted apoptosis and the role of D-alpha-tocopheryl polyethylene glycol 1000 succinate which will enhance the cell uptake and inhibit the multiple drug resistance. Moreover, the radiosensitization efficacy of docetaxel-loaded nanoparticles was more prominent than docetaxel. In conclusion, tocopheryl polyethylene glycol 1000 succinate-emulsified docetaxel-loaded PLGA nanoparticles were more efficacious and fewer adverse effects were observed than with the commercial docetaxel formulation. Thus, PLGA nanoparticles hold promise as a radiosensitizing agent.
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Affiliation(s)
- Wei Shi
- Cancer Center, Union Hospital, Tongji Medical College, Wuhan, PR China Sun Yat-Sen University Cancer Center, Guangdong, China State Key Laboratory of Oncology in South China, China
| | - Yin Yuan
- Cancer Center, Union Hospital, Tongji Medical College, Wuhan, PR China
| | - Min Chu
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, PR China
| | - Shuang Zhao
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, PR China
| | - Qingle Song
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, PR China
| | - Xiaoqian Mu
- Cancer Center, Union Hospital, Tongji Medical College, Wuhan, PR China
| | - Shuangbing Xu
- Cancer Center, Union Hospital, Tongji Medical College, Wuhan, PR China
| | - Zhiping Zhang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, PR China National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan, PR China
| | - Kunyu Yang
- Cancer Center, Union Hospital, Tongji Medical College, Wuhan, PR China
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26
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Wu Y, Chu Q, Tan S, Zhuang X, Bao Y, Wu T, Zhang Z. D-α-tocopherol polyethylene glycol succinate-based derivative nanoparticles as a novel carrier for paclitaxel delivery. Int J Nanomedicine 2015; 10:5219-35. [PMID: 26316751 PMCID: PMC4548758 DOI: 10.2147/ijn.s82847] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Paclitaxel (PTX) is one of the most effective antineoplastic drugs. Its current clinical administration Taxol® is formulated in Cremophor EL, which causes serious side effects. Nanoparticles (NP) with lower systemic toxicity and enhanced therapeutic efficiency may be an alternative formulation of the Cremophor EL-based vehicle for PTX delivery. In this study, novel amphipathic 4-arm-PEG-TPGS derivatives, the conjugation of D-α-tocopherol polyethylene glycol succinate (TPGS) and 4-arm-polyethylene glycol (4-arm-PEG) with different molecular weights, have been successfully synthesized and used as carriers for the delivery of PTX. These 4-arm-PEG-TPGS derivatives were able to self-assemble to form uniform NP with PTX encapsulation. Among them, 4-arm-PEG5K-TPGS NP exhibited the smallest particle size, highest drug-loading efficiency, negligible hemolysis rate, and high physiologic stability. Therefore, it was chosen for further in vitro and in vivo investigations. Facilitated by the effective uptake of the NP, the PTX-loaded 4-arm-PEG5K-TPGS NP showed greater cytotoxicity compared with free PTX against human ovarian cancer (A2780), non-small cell lung cancer (A549), and breast adenocarcinoma cancer (MCF-7) cells, as well as a higher apoptotic rate and a more significant cell cycle arrest effect at the G2/M phase in A2780 cells. More importantly, PTX-loaded 4-arm-PEG5K-TPGS NP resulted in a significantly improved tumor growth inhibitory effect in comparison to Taxol® in S180 sarcoma-bearing mice models. This study suggested that 4-arm-PEG5K-TPGS NP may have the potential as an anticancer drug delivery system.
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Affiliation(s)
- Yupei Wu
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Qian Chu
- Department of Oncology, Tongji Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Songwei Tan
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Xiangting Zhuang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Yuling Bao
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Tingting Wu
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Zhiping Zhang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, People's Republic of China ; Hubei Engineering Research Center for NDDS, Huazhong University of Science and Technology, Wuhan, People's Republic of China ; National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Arshad A, Yang B, Bienemann AS, Barua NU, Wyatt MJ, Woolley M, Johnson DE, Edler KJ, Gill SS. Convection-Enhanced Delivery of Carboplatin PLGA Nanoparticles for the Treatment of Glioblastoma. PLoS One 2015; 10:e0132266. [PMID: 26186224 PMCID: PMC4506141 DOI: 10.1371/journal.pone.0132266] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 06/11/2015] [Indexed: 12/01/2022] Open
Abstract
We currently use Convection-Enhanced Delivery (CED) of the platinum-based drug, carboplatin as a novel treatment strategy for high grade glioblastoma in adults and children. Although initial results show promise, carboplatin is not specifically toxic to tumour cells and has been associated with neurotoxicity at high infused concentrations in pre-clinical studies. Our treatment strategy requires intermittent infusions due to rapid clearance of carboplatin from the brain. In this study, carboplatin was encapsulated in lactic acid-glycolic acid copolymer (PLGA) to develop a novel drug delivery system. Neuronal and tumour cytotoxicity were assessed in primary neuronal and glioblastoma cell cultures. Distribution, tissue clearance and toxicity of carboplatin nanoparticles following CED was assessed in rat and porcine models. Carboplatin nanoparticles conferred greater tumour cytotoxicity, reduced neuronal toxicity and prolonged tissue half-life. In conclusion, this drug delivery system has the potential to improve the prognosis for patients with glioblastomas.
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Affiliation(s)
- Azeem Arshad
- Functional Neurosurgery Research Group, School of Clinical Sciences, Bristol University, Bristol, United Kingdom
| | - Bin Yang
- Department of Chemistry, University of Bath, Bath, United Kingdom
| | - Alison S. Bienemann
- Functional Neurosurgery Research Group, School of Clinical Sciences, Bristol University, Bristol, United Kingdom
| | - Neil U. Barua
- Functional Neurosurgery Research Group, School of Clinical Sciences, Bristol University, Bristol, United Kingdom
| | - Marcella J. Wyatt
- Functional Neurosurgery Research Group, School of Clinical Sciences, Bristol University, Bristol, United Kingdom
| | - Max Woolley
- Neurological Applications Division, Renishaw Plc, Gloucestershire, United Kingdom
| | - Dave E. Johnson
- Neurological Applications Division, Renishaw Plc, Gloucestershire, United Kingdom
| | - Karen J. Edler
- Department of Chemistry, University of Bath, Bath, United Kingdom
| | - Steven S. Gill
- Functional Neurosurgery Research Group, School of Clinical Sciences, Bristol University, Bristol, United Kingdom
- * E-mail:
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28
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Kanwar JR, Roy K, Patel Y, Zhou SF, Singh MR, Singh D, Nasir M, Sehgal R, Sehgal A, Singh RS, Garg S, Kanwar RK. Multifunctional iron bound lactoferrin and nanomedicinal approaches to enhance its bioactive functions. Molecules 2015; 20:9703-31. [PMID: 26016555 PMCID: PMC6272382 DOI: 10.3390/molecules20069703] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/13/2015] [Indexed: 02/08/2023] Open
Abstract
Lactoferrin (Lf), an iron-binding protein from the transferrin family has been reported to have numerous functions. Even though Lf was first isolated from milk, it is also found in most exocrine secretions and in the secondary granules of neutrophils. Antimicrobial and anti-inflammatory activity reports on lactoferrin identified its significance in host defense against infection and extreme inflammation. Anticarcinogenic reports on lactoferrin make this protein even more valuable. This review is focused on the structural configuration of iron-containing and iron-free forms of lactoferrin obtained from different sources such as goat, camel and bovine. Apart for emphasizing on the specific beneficial properties of lactoferrin from each of these sources, the general antimicrobial, immunomodulatory and anticancer activities of lactoferrin are discussed here. Implementation of nanomedicinial strategies that enhance the bioactive function of lactoferrin are also discussed, along with information on lactoferrin in clinical trials.
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Affiliation(s)
- Jagat R Kanwar
- Nanomedicine-Laboratory of Immunology and Molecular Biomedical Research (NLIMBR), School of Medicine (SoM), Molecular and Medical Research (MMR) Strategic Research Centre, Faculty of Health, Deakin University, Waurn Ponds, Victoria 3217, Australia.
| | - Kislay Roy
- Nanomedicine-Laboratory of Immunology and Molecular Biomedical Research (NLIMBR), School of Medicine (SoM), Molecular and Medical Research (MMR) Strategic Research Centre, Faculty of Health, Deakin University, Waurn Ponds, Victoria 3217, Australia.
| | - Yogesh Patel
- Nanomedicine-Laboratory of Immunology and Molecular Biomedical Research (NLIMBR), School of Medicine (SoM), Molecular and Medical Research (MMR) Strategic Research Centre, Faculty of Health, Deakin University, Waurn Ponds, Victoria 3217, Australia.
| | - Shu-Feng Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL 33612, USA.
| | - Manju Rawat Singh
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur 492 010, India.
| | - Deependra Singh
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur 492 010, India.
| | - Muhammad Nasir
- Department of Food Science & Human Nutrition, Faculty of Bio-Sciences, University of Veterinary & Animal Sciences, Lahore, Punjab 54000, Pakistan.
| | - Rakesh Sehgal
- Department of Medical Parasitology, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India.
| | - Alka Sehgal
- Department of Obstetrics & Gynecology, Government Medical College & Hospital, Sector 32, Chandigarh 160031, India.
| | - Ram Sarup Singh
- Carbohydrate and Protein Biotechnology Laboratory, Department of Biotechnology, Punjabi University, Patiala 147002, India.
| | - Sanjay Garg
- Centre for Pharmaceutical Innovation and Development (CPID), School of Pharmacy and Medical Sciences, University of South Australia, Adelaide SA 5000, Australia.
| | - Rupinder K Kanwar
- Nanomedicine-Laboratory of Immunology and Molecular Biomedical Research (NLIMBR), School of Medicine (SoM), Molecular and Medical Research (MMR) Strategic Research Centre, Faculty of Health, Deakin University, Waurn Ponds, Victoria 3217, Australia.
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29
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Zhang XY, Zhang YD. Enhanced antiproliferative and apoptosis effect of paclitaxel-loaded polymeric micelles against non-small cell lung cancers. Tumour Biol 2015; 36:4949-59. [DOI: 10.1007/s13277-015-3142-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Accepted: 01/19/2015] [Indexed: 12/28/2022] Open
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Song Q, Tan S, Zhuang X, Guo Y, Zhao Y, Wu T, Ye Q, Si L, Zhang Z. Nitric oxide releasing d-α-tocopheryl polyethylene glycol succinate for enhancing antitumor activity of doxorubicin. Mol Pharm 2014; 11:4118-29. [PMID: 25222114 DOI: 10.1021/mp5003009] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Nitric oxide (NO) has attracted much attention for its antitumor activity and synergistic effects when codelivered with anticancer agents. However, due to its chemical instability and short half-life, delivering gaseous NO directly to tumors is still challenging. Herein, we synthesized a NO releasing polymer, nitrate functionalized d-α-tocopheryl polyethylene glycol succinate (TNO3). TNO3 was able to self-assemble into stable micelles in physiological conditions, accumulate in tumors, and release ∼90% of NO content in cancer cells for 96 h. It further exhibited significant cancer cell cytotoxicity and apoptosis compared with nitroglycerine (GTN). Notably, TNO3 could also serve as an enhancer for the common chemotherapeutic drug doxorubicin (DOX). Codelivering TNO3 with DOX to hepatocarcinoma HepG2 cancer cells strengthened the cellular uptake of DOX and enabled the synergistic effect between NO and DOX to induce higher cytotoxicity (∼6.25-fold lower IC50). Moreover, for DOX-based chemotherapy in tumor-bearing mice, coadministration with TNO3 significantly extended the blood circulation time of DOX (14.7-fold t1/2, 6.5-fold mean residence time (MRT), and 13.7-fold area under curve (AUC)) and enhanced its tumor accumulation and penetration, thus resulting in better antitumor efficacy. In summary, this new NO donor, TNO3, may provide a simple but effective strategy to enhance the therapeutic efficacy of chemotherapeutic drugs.
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Affiliation(s)
- Qingle Song
- Tongji School of Pharmacy and ‡National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology , Wuhan 430030, China
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Enhanced effect of pH-sensitive mixed copolymer micelles for overcoming multidrug resistance of doxorubicin. Biomaterials 2014; 35:9877-9887. [PMID: 25201738 DOI: 10.1016/j.biomaterials.2014.08.008] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 08/01/2014] [Indexed: 11/21/2022]
Abstract
P-glycoprotein (P-gp) mediated drug efflux has been recognized as a key factor contributing to the multidrug resistance (MDR) in tumor cells. To address this issue, a new pH-sensitive mixed copolymer micelles system composed of hyaluronic acid-g-poly(l-histidine) (HA-PHis) and d-α-tocopheryl polyethylene glycol 2000 (TPGS2k) copolymers was developed to co-deliver doxorubicin (DOX) and TPGS2k into drug-resistant breast cancer MCF-7 cells (MCF-7/ADR). The DOX-loaded HA-PHis/TPGS2k mixed micelles (HPHM/TPGS2k) were characterized to have a unimodal size distribution, high DOX loading content and a pH dependent drug release profile due to the protonation of poly(l-histidine). As compared to HA-PHis micelles (HPHM), the HPHM/TPGS2k showed higher and comparable cytotoxicity against MCF-7/ADR cells and MCF-7 cells, respectively. The enhanced MDR reversal effect was attributed to the higher amount of cellular uptake of HPHM/TPGS2k in MCF-7/ADR cells than HPHM, arising from the inhibition of P-gp mediated drug efflux by TPGS2k. The measurements of P-gp expression level and mitochondrial membrane potential indicate that the blank HPHM/TPGS2k inhibited P-gp activity by reducing mitochondrial membrane potential and depletion of ATP but without inhibition of P-gp expression. In vivo study of micelles in tumor-bearing mice indicate that HPHM/TPGS2k could reach the tumor site more effectively than HPHM. The pH-sensitive mixed micelles system has been demonstrated to be a promising approach for overcoming the MDR.
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32
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Kaur V, Garg T, Rath G, Goyal AK. Therapeutic potential of nanocarrier for overcoming to P-glycoprotein. J Drug Target 2014; 22:859-70. [PMID: 25101945 DOI: 10.3109/1061186x.2014.947295] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Enhancement of targeted therapeutic effect in the body and achievement of high bioavailability are major concern for the researchers due to the complex physiology of human body. There are so many barriers that hinder the absorption and permeation of drugs from the body, thus influencing the bioavailability of therapeutics. P-glycoprotein (P-gp) is one of such barrier present on the apical membranes of various organs such as small intestine, brain, kidney and liver. This protein interacts with vast variety of therapeutics and efflux out them preventing their entrance to the desired site, thus modulating their pharmacokinetic properties. To address this, a concerned number of approaches have been used such as the use of chemo sensitizers along with the therapeutics and various novel techniques. In this review, we are going to discuss the basic introduction to this protein and overview of various strategies used earlier to tackle the problem of P-gp efflux as well as the role of nanocarriers in confronting this issue. Nanocarriers have played great role in the enhancement of the bioavailability of many antineoplastic agents as well as other P-gp substrates. Encapsulation of P-gp inhibitors in the nanocarrier system prevents toxicity and gives site-specific action.
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Affiliation(s)
- Vimratjeet Kaur
- Department of Pharmaceutics, ISF College of Pharmacy , Moga, Punjab , India
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Warsi MH, Anwar M, Garg V, Jain GK, Talegaonkar S, Ahmad FJ, Khar RK. Dorzolamide-loaded PLGA/vitamin E TPGS nanoparticles for glaucoma therapy: Pharmacoscintigraphy study and evaluation of extended ocular hypotensive effect in rabbits. Colloids Surf B Biointerfaces 2014; 122:423-431. [PMID: 25159319 DOI: 10.1016/j.colsurfb.2014.07.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 06/13/2014] [Accepted: 07/02/2014] [Indexed: 01/16/2023]
Abstract
Poor drug penetration and rapid clearance after topical instillation of a drug formulation into the eyes are the major causes for the lower ocular bioavailability from conventional eye drops. Along with this, poor encapsulation efficiency of hydrophilic drug in polymeric nanoparticles remains a major formulation challenge. Taking this perspective into consideration, dorzolamide (DZ)-loaded PLGA nanoparticles were developed employing two different emulsifiers (PVA and vitamin E TPGS) and the effects of various formulation and process variables on particle size and encapsulation efficiency were assessed. Nanoparticles emulsified with vitamin E TPGS (DZ-T-NPs) were found to possess enhanced drug encapsulation (59.8±6.1%) as compared to those developed with PVA as emulsifier (DZ-P-NPs). Transcorneal permeation study revealed a significant enhancement in permeation (1.8-2.5 fold) as compared to solution. In addition, ex vivo biodistribution study showed a higher concentration of drug in the aqueous humour (1.5-2.3 fold). Histological and IR-camera studies proved the non-irritant potential of the formulations. Pharmacoscintigraphic studies revealed the reduced corneal clearance, as well as naso-lachrymal drainage in comparison to drug solution. Furthermore, efficacy study revealed that DZ-P-NPs and DZ-T-NPs significantly reduced the intraocular pressure by 22.81% and 29.12%, respectively, after a single topical instillation into the eye.
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Affiliation(s)
- Musarrat H Warsi
- Nanoformulation Research Lab, Faculty of Pharmacy, Hamdard University, New Delhi, India.
| | - Mohammed Anwar
- Nanoformulation Research Lab, Faculty of Pharmacy, Hamdard University, New Delhi, India
| | - Vaidehi Garg
- Nanoformulation Research Lab, Faculty of Pharmacy, Hamdard University, New Delhi, India
| | - Gaurav K Jain
- Nanoformulation Research Lab, Faculty of Pharmacy, Hamdard University, New Delhi, India
| | - Sushama Talegaonkar
- Nanoformulation Research Lab, Faculty of Pharmacy, Hamdard University, New Delhi, India
| | - Farhan J Ahmad
- Nanoformulation Research Lab, Faculty of Pharmacy, Hamdard University, New Delhi, India.
| | - Roop K Khar
- Nanoformulation Research Lab, Faculty of Pharmacy, Hamdard University, New Delhi, India; B. S. Anangpuria Institute of Pharmacy, Faridabad, Haryana, India
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34
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Targeted Paclitaxel Delivery to Tumors Using Cleavable PEG-Conjugated Solid Lipid Nanoparticles. Pharm Res 2014; 31:2220-33. [DOI: 10.1007/s11095-014-1320-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 01/28/2014] [Indexed: 10/25/2022]
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35
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Effects of PEG tethering chain length of vitamin E TPGS with a Herceptin-functionalized nanoparticle formulation for targeted delivery of anticancer drugs. Biomaterials 2014; 35:3340-7. [PMID: 24461325 DOI: 10.1016/j.biomaterials.2014.01.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 01/01/2014] [Indexed: 02/07/2023]
Abstract
Drug formulation by ligand conjugated nanoparticles of biodegradable polymers has become one of the most important strategies in drug targeting. We have developed in our previous work nanoparticles of a mixture of two vitamin E TPGS based copolymers PLA-TPGS and TPGS-TOOH with the latter for Herceptin conjugation for targeted delivery of anticancer drugs such as docetaxel to the cancer cells of human epidermal growth factor receptor 2 (HER2) overexpression. In this research, we investigated the effects of the PEG chain length in TPGS, which is in fact a PEGylated vitamin E, on the cellular uptake and cytotoxicity of the drug formulated in the Herceptin-conjugated nanoparticles of PLA-TPGS/TPGS-COOH blend (NPs). Such NPs of PEG1000, PEG2000, PEG3350 and PEG5000, i.e. the PEG of molecule weight 1000, 2000, 3350 and 5000, were prepared by the nanoprecipitation method and characterized for their size and size distribution, drug loading, surface morphology, surface charge and surface chemistry as well as in vitro drug release profile, cellular uptake and cytotoxicity. We found among such nanoparticles, those of PEG1000, i.e. of the shortest PEG tethering chain length, could result in the best therapeutic effects, which are 24.1%, 37.3%, 38.1% more efficient in cellular uptake and 68.1%, 90%, 92.6% lower in IC50 (thus higher in cytotoxicity) than the Herceptin-conjugated nanoparticles of PLA-TPGS/TPGS-COOH blend of PEG2000, PEG3350 and PEG5000 respectively in treatment of SK-BR-3 cancer cells which are of high HER2 overexpression. We provided a theoretical explanation from surface mechanics and thermodynamics for endocytosis of nanoparticles.
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36
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Saadati R, Dadashzadeh S. Marked effects of combined TPGS and PVA emulsifiers in the fabrication of etoposide-loaded PLGA-PEG nanoparticles: in vitro and in vivo evaluation. Int J Pharm 2014; 464:135-44. [PMID: 24451238 DOI: 10.1016/j.ijpharm.2014.01.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 01/06/2014] [Accepted: 01/08/2014] [Indexed: 02/03/2023]
Abstract
The purpose of this study was to investigate the effect of d-alpha tocopheryl polyethylene glycol 1000 succinate (TPGS) alone or in combination with other emulsifiers in the fabrication of etoposide-loaded PLGA-PEG nanoparticles for in vivo applications. Nanoparticles were prepared by nanoprecipitation or single-emulsion solvent evaporation method using TPGS alone or in combination with other surfactants. These nanoparticles were fully characterized by different techniques. For nanoprecipitation preparations, by adding 0.1% TPGS to polyvinyl alcohol in the aqueous phase, encapsulation efficiency markedly increased (up to 82%); moreover, drug release was readily controlled up to 3 days. Regarding emulsion solvent evaporation method, the highest encapsulation efficiency was obtained for nanoparticles emulsified with polyvinyl alcohol or TPGS; however, the burst release was high. When the combination of TPGS and polyvinyl alcohol was applied a marked increase in encapsulation efficiency (∼ 90%) was observed and the drug release was extended to more than one week. Pharmacokinetic measurements showed that the optimum formulation generated 14.4 times higher AUC and lasted 5.1 times longer when compared to free drug. Overall, using TPGS in combination with polyvinyl alcohol as an emulsifier in preparing etoposide loaded PLGA-PEG nanoparticles markedly increased the encapsulation efficiency, sustained drug release and resulted in nanoparticles with noticeable sustainable in vivo disposition.
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Affiliation(s)
- Roonak Saadati
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Simin Dadashzadeh
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Pharmaceutical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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37
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Mondal S, Roy P, Das S, Halder A, Mukherjee A, Bera T. In vitro susceptibilities of wild and drug resistant leishmania donovani amastigote stages to andrographolide nanoparticle: role of vitamin E derivative TPGS for nanoparticle efficacy. PLoS One 2013; 8:e81492. [PMID: 24339938 PMCID: PMC3858255 DOI: 10.1371/journal.pone.0081492] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 10/13/2013] [Indexed: 01/13/2023] Open
Abstract
Visceral leishmaniasis (VL) is a chronic protozoan infection in humans associated with significant global morbidity and mortality. There is an urgent need to develop drugs and strategy that will improve therapeutic response for effective clinical treatment of drug resistant VL. To address this need, andrographolide (AG) nanoparticles were designed with P-gp efflux inhibitor vitamin E TPGS (D-α-tocopheryl polyethyleneglycol 1000 succinate) for sensitivity against drug resistant Leishmania strains. AG loaded PLGA (50∶50) nanoparticles (AGnps) stabilized by vitamin E TPGS were prepared for delivery into macrophage cells infested with sensitive and drug resistant amastigotes of Leishmania parasites. Physico-chemical characterization of AGnps by photon correlation spectroscopy exhibited an average particle size of 179.6 nm, polydispersity index of 0.245 and zeta potential of -37.6 mV. Atomic force microscopy and transmission electron microscopy visualization revealed spherical nanoparticles with smooth surfaces. AGnps displayed sustained AG release up to 288 hours as well as minimal particle aggregation and drug loss even after three months study period. Antileishmanial activity as revealed from selectivity index in wild-type strain was found to be significant for AGnp with TPGS in about one-tenth of the dosage of the free AG and one-third of the dosage of the AGnp without TPGS. Similar observations were also found in case of in vitro generated drug resistant and field isolated resistant strains of Leishmania. Cytotoxicity of AGnp with and without TPGS was significantly less than standard antileishmanial chemotherapeutics like amphotericin B, paromomycin or sodium stibogluconate. Macrophage uptake of AGnps was almost complete within one hour as evident from fluorescent microscopy studies. Thus, based on these observations, it can be concluded that the low-selectivity of AG in in vitro generated drug resistant and field isolated resistant strains was improved in case of AG nanomedicines designed with vitamin E TPGS.
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Affiliation(s)
- Subhasish Mondal
- Division of Medicinal Biochemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, West Bengal, India
| | - Partha Roy
- Department of Chemical Technology, University of Calcutta, Kolkata, West Bengal, India
| | - Suvadra Das
- Department of Chemical Technology, University of Calcutta, Kolkata, West Bengal, India
| | - Asim Halder
- Department of Chemical Technology, University of Calcutta, Kolkata, West Bengal, India
| | - Arup Mukherjee
- Department of Chemical Technology, University of Calcutta, Kolkata, West Bengal, India
| | - Tanmoy Bera
- Division of Medicinal Biochemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, West Bengal, India
- * E-mail:
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Guo Y, Chu M, Tan S, Zhao S, Liu H, Otieno BO, Yang X, Xu C, Zhang Z. Chitosan-g-TPGS Nanoparticles for Anticancer Drug Delivery and Overcoming Multidrug Resistance. Mol Pharm 2013; 11:59-70. [DOI: 10.1021/mp400514t] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yuanyuan Guo
- Tongji
School of Pharmacy, §National Engineering Research Center for Nanomedicine, ⊥College of Life Science
and Technology, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Min Chu
- Tongji
School of Pharmacy, §National Engineering Research Center for Nanomedicine, ⊥College of Life Science
and Technology, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Songwei Tan
- Tongji
School of Pharmacy, §National Engineering Research Center for Nanomedicine, ⊥College of Life Science
and Technology, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Shuang Zhao
- Tongji
School of Pharmacy, §National Engineering Research Center for Nanomedicine, ⊥College of Life Science
and Technology, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Hanxiao Liu
- Tongji
School of Pharmacy, §National Engineering Research Center for Nanomedicine, ⊥College of Life Science
and Technology, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Ben Oketch Otieno
- Tongji
School of Pharmacy, §National Engineering Research Center for Nanomedicine, ⊥College of Life Science
and Technology, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Xiangliang Yang
- Tongji
School of Pharmacy, §National Engineering Research Center for Nanomedicine, ⊥College of Life Science
and Technology, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Chuanrui Xu
- Tongji
School of Pharmacy, §National Engineering Research Center for Nanomedicine, ⊥College of Life Science
and Technology, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Zhiping Zhang
- Tongji
School of Pharmacy, §National Engineering Research Center for Nanomedicine, ⊥College of Life Science
and Technology, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
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Optimization of parameters for preparation of docetaxel-loaded PLGA nanoparticles by nanoprecipitation method. ACTA ACUST UNITED AC 2013; 33:754-758. [PMID: 24142732 DOI: 10.1007/s11596-013-1192-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/15/2013] [Indexed: 02/01/2023]
Abstract
The purpose of this study was to develop docetaxel-poly (lactide-co-glycolide) (PLGA) loaded nanoparticles by using nanoprecipitation method and optimize the relative parameters to obtain nanoparticles with higher encapsulation efficiency and smaller size. The physicochemical characteristics of nanoparticles were studied. The optimized parameters were as follows: the oil phase was mixture of acetone and ethanol, concentration of tocopheryl polyethylene glycol succinate (TPGS) was 0.2%, the ratio of oil phase to water phase was 1:5, and the theoretical drug concentration was 5%. The optimized nanoparticles were spherical with size between 130 and 150 nm. The encapsulation efficiency was (40.83±2.1)%. The in vitro release exhibited biphasic pattern. The results indicate that docetaxel-PLGA nanoparticles were successfully fabricated and may be used as the novel vehicles for docetaxel, which would replace Taxotere® and play great roles in future.
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40
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Mi Y, Zhao J, Feng SS. Prodrug micelle-based nanomedicine for cancer treatment. Nanomedicine (Lond) 2013; 8:1559-62. [DOI: 10.2217/nnm.13.121] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Yu Mi
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Singapore
| | - Jing Zhao
- Department of Bioengineering, National University of Singapore, Singapore
| | - Si-Shen Feng
- Department of Chemical & Biomolecular Engineering, Department of Bioengineering, & Nanoscience & Nanotechnology Initiative (NUSNNI/NanoCore), National University of Singapore, Block E3, 05–29, 2 Engineering Drive 3, Singapore 117576, Singapore
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Yu Y, Tan S, Zhao S, Zhuang X, Song Q, Wang Y, Zhou Q, Zhang Z. Antitumor activity of docetaxel-loaded polymeric nanoparticles fabricated by Shirasu porous glass membrane-emulsification technique. Int J Nanomedicine 2013; 8:2641-52. [PMID: 23935362 PMCID: PMC3735276 DOI: 10.2147/ijn.s48214] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Docetaxel (DTX) has excellent efficiency against a wide spectrum of cancers. However, the current clinical formulation has limited its usage, as it causes some severe side effects. Various polymeric nanoparticles have thus been developed as alternative formulations of DTX, but they have been mostly fabricated on a laboratory scale. Previously, we synthesized a novel copolymer, poly(lactide)-D-α-tocopheryl polyethylene glycol 1000 succinate (PLA-TPGS), and found that it exhibited great potential in drug delivery with improved properties. In this study, we applied the Shirasu porous glass (SPG) membrane-emulsification technique to prepare the DTX-loaded PLA-TPGS nanoparticles on a pilot scale. The effect of several formulation variables on the DTX-loaded nanoparticle properties, including particle size, zeta potential, and drug-encapsulation efficiency, were investigated based on surfactant type and concentration in the aqueous phase, organic/aqueous phase volumetric ratio, membrane-pore size, transmembrane cycles, and operation pressure. The DTX-loaded nanoparticles were obtained with sizes of 306.8 ± 5.5 nm and 334.1 ± 2.7 nm (mean value ± standard deviation), and drug-encapsulation efficiency of 81.8% ± 4.5% and 64.5% ± 2.7% for PLA-TPGS and poly(lactic-co-glycolic acid) (PLGA) nanoparticles, respectively. In vivo pharmacokinetic study exhibited a significant advantage of PLA-TPGS nanoparticles over PLGA nanoparticles and Taxotere. Drug-loaded PLA-TPGS nanoparticles exhibited 1.78-, 6.34- and 3.35-fold higher values for area under the curve, half-life, and mean residence time, respectively, compared with those of PLGA nanoparticles, and 2.23-, 13.2-, 8.51-fold higher than those of Taxotere, respectively. In vivo real-time distribution of nanoparticles was measured on tumor-bearing mice by near-infrared fluorescence imaging, which demonstrated that the PLA-TPGS nanoparticles achieved much higher concentration and longer retention in tumors than PLGA nanoparticles after intravenous injection. This is consistent with the pharmacokinetic behavior of the nanoparticles. The tumor-inhibitory effect of DTX-loaded nanoparticles was observed in vivo in an H22 tumor-bearing mice model via intravenous administration. This indicated that PLA-TPGS nanoparticles are a feasible drug-delivery formulation with a pilot fabrication technique and have superior pharmacokinetic and anticancer effects compared to the commercially available Taxotere.
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Affiliation(s)
- Yunni Yu
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
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Zhao S, Tan S, Guo Y, Huang J, Chu M, Liu H, Zhang Z. pH-Sensitive Docetaxel-Loaded d-α-Tocopheryl Polyethylene Glycol Succinate–Poly(β-amino ester) Copolymer Nanoparticles for Overcoming Multidrug Resistance. Biomacromolecules 2013; 14:2636-46. [DOI: 10.1021/bm4005113] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Shuang Zhao
- Tongji School of Pharmacy & National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Songwei Tan
- Tongji School of Pharmacy & National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yuanyuan Guo
- Tongji School of Pharmacy & National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jing Huang
- Tongji School of Pharmacy & National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Min Chu
- Tongji School of Pharmacy & National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hudan Liu
- Tongji School of Pharmacy & National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhiping Zhang
- Tongji School of Pharmacy & National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430030, China
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Polymeric micelles, a promising drug delivery system to enhance bioavailability of poorly water-soluble drugs. JOURNAL OF DRUG DELIVERY 2013; 2013:340315. [PMID: 23936656 PMCID: PMC3712247 DOI: 10.1155/2013/340315] [Citation(s) in RCA: 267] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 06/04/2013] [Accepted: 06/11/2013] [Indexed: 01/27/2023]
Abstract
Oral administration is the most commonly used and readily accepted form of drug delivery; however, it is find that many drugs are difficult to attain enough bioavailability when administered via this route. Polymeric micelles (PMs) can overcome some limitations of the oral delivery acting as carriers able to enhance drug absorption, by providing (1) protection of the loaded drug from the harsh environment of the GI tract, (2) release of the drug in a controlled manner at target sites, (3) prolongation of the residence time in the gut by mucoadhesion, and (4) inhibition of efflux pumps to improve the drug accumulation. To explain the mechanisms for enhancement of oral bioavailability, we discussed the special stability of PMs, the controlled release properties of pH-sensitive PMs, the prolongation of residence time with mucoadhesive PMs, and the P-gp inhibitors commonly used in PMs, respectively. The primary purpose of this paper is to illustrate the potential of PMs for delivery of poorly water-soluble drugs with bioavailability being well maintained.
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Mei L, Zhang Z, Zhao L, Huang L, Yang XL, Tang J, Feng SS. Pharmaceutical nanotechnology for oral delivery of anticancer drugs. Adv Drug Deliv Rev 2013; 65:880-90. [PMID: 23220325 DOI: 10.1016/j.addr.2012.11.005] [Citation(s) in RCA: 248] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Revised: 10/28/2012] [Accepted: 11/07/2012] [Indexed: 01/01/2023]
Abstract
Oral chemotherapy is an important topic in the 21st century medicine, which may radically change the current regimen of chemotherapy and greatly improve the quality of life of the patients. Unfortunately, most anticancer drugs, especially those of high therapeutic efficacy such as paclitaxel and docetaxel, are not orally bioavailable due to the gastrointestinal (GI) drug barrier. The molecular basis of the GI barrier has been found mainly due to the multidrug efflux proteins, i.e. P-type glycoproteins (P-gp), which are rich in the epithelial cell membranes in the GI tract. Medical solution for oral chemotherapy is to apply P-gp inhibitors such as cyclosporine A, which, however, suppress the body's immune system either, thus causing medical complication. Pharmaceutical nanotechnology, which is to apply and further develop nanotechnology to solve the problems in drug delivery, may provide a better solution and thus change the way we make drug and the way we take drug. This review is focused on the problems encountered in oral chemotherapy and the pharmaceutical nanotechnology solutions such as prodrugs, nanoemulsions, dendrimers, micelles, liposomes, solid lipid nanoparticles and nanoparticles of biodegradable polymers. Proof-of-concept in vitro and in vivo results for oral delivery of anticancer drugs by the various nanocarriers, which can be found so far from the literature, are provided.
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Zhang X, Lu J, Huang Y, Zhao W, Li J, Gao X, Venkataramanan R, Sun M, Stolz DD, Zhang L, Li S. PEG-farnesylthiosalicylate conjugate as a nanomicellar carrier for delivery of paclitaxel. Bioconjug Chem 2013; 24:464-72. [PMID: 23425093 PMCID: PMC3623935 DOI: 10.1021/bc300608h] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
S-trans, trans-farnesylthiosalicylic acid (FTS) is a synthetic small molecule that acts as a potent and especially nontoxic Ras antagonist. It inhibits both oncogenically activated Ras and growth factor receptor-mediated Ras activation, resulting in the inhibition of Ras-dependent tumor growth. In this work, an FTS conjugate with poly(ethylene glycol) (PEG) through a labile ester linkage, PEG5K-FTS2(L), was developed. PEG5K-FTS2 conjugate readily forms micelles in aqueous solutions with a critical micelle concentration of 0.68 μM, and hydrophobic drugs such as paclitaxel (PTX) could be effectively loaded into these particles. Both drug-free and PTX-loaded micelles were spherical in shape with a uniform size of 20-30 nm. The release of PTX from PTX-loaded PEG5K-FTS2 micelles was significantly slower than that from Taxol formulation. In vitro cytotoxicity studies with several tumor cell lines showed that PEG5K-FTS2(L) was comparable to FTS in antitumor activity. Western immunoblotting showed that total Ras levels were downregulated in several cancer cell lines treated with FTS or PEG5K-FTS2(L). The micellar formulation of PTX exhibited more in vitro cytotoxic activity against several tumor cell lines compared with free PTX, suggesting a possible synergistic effect between the carrier and the codelivered drug. The antitumor activity of the PTX loaded PEG5K-FTS2(L) micelles in a syngeneic murine breast cancer model was found to be significantly higher than that of Taxol, which may be attributed to their preferential tumor accumulation and a possible synergistic effect between PEG5K-FTS2 carrier and loaded PTX.
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Affiliation(s)
- Xiaolan Zhang
- Center for Pharmacogenetics, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Jianqin Lu
- Center for Pharmacogenetics, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Yixian Huang
- Center for Pharmacogenetics, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Wenchen Zhao
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Jiang Li
- Center for Pharmacogenetics, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Xiang Gao
- Center for Pharmacogenetics, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Raman Venkataramanan
- Center for Pharmacogenetics, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Min Sun
- Department of Cell Biology and Physiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Donna D. Stolz
- Department of Cell Biology and Physiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Lin Zhang
- University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Song Li
- Center for Pharmacogenetics, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, 15261, USA
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Characterization and in-vitro bioactivity evaluation of paclitaxel-loaded polyester nanoparticles. Anticancer Drugs 2013; 23:947-58. [PMID: 22713593 DOI: 10.1097/cad.0b013e328355a6c6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Paclitaxel, an antimicrotubular agent used in the treatment of ovarian and breast cancer, was encapsulated in nanoparticles of poly(DL-lactide-co-glycolide) and poly(ε-caprolactone) polymers using the double emulsion-solvent evaporation technique. The morphology, size distribution, drug encapsulation efficiency, thermal degradation and in-vitro drug release profile were characterized. High-performance liquid chromatography was used to determine the drug encapsulation efficiency and in-vitro drug release profile. MCF-7 breast cancer cells were used to evaluate the cytotoxicity (MTT assay), the cellular uptake and the cell cycle. The particle size was in the range of 200-400 nm. Poly(lactide-co-glycolide) nanoparticles showed more effective cellular uptake compared with those of poly(ε-caprolactone). Unloaded nanoparticles were found to be cytocompatible on MCF-7 cells and paclitaxel formulations showed efficacy in killing MCF-7 cells. Paclitaxel-loaded nanoparticles induced the release of the drug-blocking cells in the G2/M phase. Paclitaxel-loaded nanoparticles may be considered a promising drug delivery system in the evaluation of an in-vivo model.
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Vijayakumar MR, Muthu MS, Singh S. Copolymers of poly(lactic acid) and D-α-tocopheryl polyethylene glycol 1000 succinate-based nanomedicines: versatile multifunctional platforms for cancer diagnosis and therapy. Expert Opin Drug Deliv 2013; 10:529-43. [PMID: 23316695 DOI: 10.1517/17425247.2013.758632] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION The major drawbacks associated with most of the anti-cancer drugs are their potential adverse effects. Distribution of these drugs throughout the body causes untoward adverse effects and less accumulation of drug at the site of tumors also causes decrease in therapeutic efficacy. Targeted nanomedicines are the emerging systems to improve the targetability of drug to the tumor site and to reduce the toxicity with maximum efficacy. Copolymers of poly-lactic acid (PLA) and D-α-tocopheryl polyethylene glycol 1000 succinate (Vitamin-E TPGS or TPGS) are innovative materials being actively investigated for the fabrication of non-targeted and targeted nanomedicines for diagnosis and therapy of cancer. AREAS COVERED In this review, different nanomedicines of copolymers such as poly-lactic acid - polyoxyethylene sorbitan monooleate (PLA - Tween® 80), poly-lactic acid - poly-ethyleneglycol (PLA-PEG), poly-lactic acid-D-α-tocopheryl polyethylene glycol 1000 succinate (PLA-TPGS) and TPGS-based nanomedicines (i.e., TPGS emulsified polymeric nanoparticles, TPGS prodrugs, TPGS liposomes, and TPGS micelles) for the diagnosis and therapy of cancer have been discussed. EXPERT OPINION PLA, PLA-Tween® 80, PLA-PEG, PLA-TPGS, and TPGS are the promising polymeric biomaterials well studied as cancer nanomedicines. These biomaterials have proved that they could be applied in the fabrication of multifunctional nanomedicines for the future needs in simultaneous diagnosis of cancer as well as targeted chemotherapy.
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Affiliation(s)
- Mahalingam R Vijayakumar
- Banaras Hindu University, Indian Institute of Technology, Department of Pharmaceutics, Varanasi 221005 (U.P), India
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Abstract
Paclitaxel is one of the most effective chemotherapeutic drugs ever developed and is active against a broad range of cancers, such as lung, ovarian, and breast cancers. Due to its low water solubility, paclitaxel is formulated in a mixture of Cremophor EL and dehydrated ethanol (50:50, v/v) a combination known as Taxol. However, Taxol has some severe side effects related to Cremophor EL and ethanol. Therefore, there is an urgent need for the development of alternative Taxol formulations. The encapsulation of paclitaxel in biodegradable and non-toxic nano-delivery systems can protect the drug from degradation during circulation and in-turn protect the body from toxic side effects of the drug thereby lowering its toxicity, increasing its circulation half-life, exhibiting improved pharmacokinetic profiles, and demonstrating better patient compliance. Also, nanoparticle-based delivery systems can take advantage of the enhanced permeability and retention (EPR) effect for passive tumor targeting, therefore, they are promising carriers to improve the therapeutic index and decrease the side effects of paclitaxel. To date, paclitaxel albumin-bound nanoparticles (Abraxane®) have been approved by the FDA for the treatment of metastatic breast cancer and non-small cell lung cancer (NSCLC). In addition, there are a number of novel paclitaxel nanoparticle formulations in clinical trials. In this comprehensive review, several types of developed paclitaxel nano-delivery systems will be covered and discussed, such as polymeric nanoparticles, lipid-based formulations, polymer conjugates, inorganic nanoparticles, carbon nanotubes, nanocrystals, and cyclodextrin nanoparticles.
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Affiliation(s)
- Ping Ma
- Center for Nanotechnology in Drug Delivery, Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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Wang Y, Guo M, Lu Y, Ding LY, Ron WT, Liu YQ, Song FF, Yu SQ. Alpha-tocopheryl polyethylene glycol succinate-emulsified poly(lactic-co-glycolic acid) nanoparticles for reversal of multidrug resistance in vitro. NANOTECHNOLOGY 2012; 23:495103. [PMID: 23149859 DOI: 10.1088/0957-4484/23/49/495103] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Multidrug resistance (MDR) is one of the factors in the failure of anticancer chemotherapy. In order to enhance the anticancer effect of P-glycoprotein (P-gp) substrates, inhibition of the P-gp efflux pump on MDR cells is a good tactic. We designed novel multifunctional drug-loaded alpha-tocopheryl polyethylene glycol succinate (TPGS)/poly(lactic-co-glycolic acid) (PLGA) nanoparticles (TPGS/PLGA/SN-38 NPs; SN-38 is 7-ethyl-10-hydroxy-camptothecin), with TPGS-emulsified PLGA NPs as the carrier and modulator of the P-gp efflux pump and SN-38 as the model drug. TPGS/PLGA/SN-38 NPs were prepared using a modified solvent extraction/evaporation method. Physicochemical characterizations of TPGS/PLGA/SN-38 NPs were in conformity with the principle of nano-drug delivery systems (nDDSs), including a diameter of about 200 nm, excellent spherical particles with a smooth surface, narrow size distribution, appropriate surface charge, and successful drug-loading into the NPs. The cytotoxicity of TPGS/PLGA/SN-38 NPs to MDR cells was increased by 3.56 times compared with that of free SN-38. Based on an intracellular accumulation study relative to the time-dependent uptake and efflux inhibition, we suggest novel mechanisms of MDR reversal of TPGS/PLGA NPs. Firstly, TPGS/PLGA/SN-38 NPs improved the uptake of the loaded drug by clathrin-mediated endocytosis in the form of unbroken NPs. Simultaneously, intracellular NPs escaped the recognition of P-gp by MDR cells. After SN-38 was released from TPGS/PLGA/SN-38 NPs in MDR cells, TPGS or/and PLGA may modulate the efflux microenvironment of the P-gp pump, such as mitochondria and the P-gp domain with an ATP-binding site. Finally, the controlled-release drug entered the nucleus of the MDR cell to induce cytotoxicity. The present study showed that TPGS-emulsified PLGA NPs could be functional carriers in nDDS for anticancer drugs that are also P-gp substrates. More importantly, to enhance the therapeutic effect of P-gp substrates, this work might provide a new insight into the design of pharmacologically inactive excipients that can serve as P-gp modulators instead of drugs that are P-gp inhibitors.
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Affiliation(s)
- Ying Wang
- Jiangsu Key Laboratory for Supramolecular Medicinal Materials and Applications, College of Life Sciences, Nanjing Normal University, Nanjing 210046, People's Republic of China
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