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Li W, Xiong X, Gong Y, Li Z. Preparation and In vitro Evaluation of Folated Pluronic F87/TPGS Co-modified Liposomes for Targeted Delivery of Curcumin. Curr Drug Deliv 2024; 21:592-602. [PMID: 37340749 DOI: 10.2174/1567201820666230619112502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/01/2023] [Accepted: 05/19/2023] [Indexed: 06/22/2023]
Abstract
BACKGROUND Using targeted liposomes to encapsulate and deliver drugs has become a hotspot in biomedical research. Folated Pluronic F87/D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) co-modified liposomes (FA-F87/TPGS-Lps) were fabricated for curcumin delivery, and intracellular targeting of liposomal curcumin was investigated. METHODS FA-F87 was synthesized and its structural characterization was conducted through dehydration condensation. Then, cur-FA-F87/TPGS-Lps were prepared via thin film dispersion method combined with DHPM technique, and their physicochemical properties and cytotoxicity were determined. Finally, the intracellular distribution of cur-FA-F87/TPGS-Lps was investigated using MCF-7 cells. RESULTS Incorporation of TPGS in liposomes reduced their particle size, but increased the negative charge of the liposomes as well as their storage stability, and the encapsulation efficiency of curcumin was improved. While, modification of liposomes with FA increased their particle size, and had no impact on the encapsulation efficiency of curcumin in liposomes. Among all the liposomes (cur-F87-Lps, cur-FA-F87-Lps, cur-FA-F87/TPGS-Lps and cur-F87/TPGS-Lps), cur-FA-F87/TPGS-Lps showed highest cytotoxicity to MCF-7 cells. Moreover, cur-FA-F87/TPGS-Lps was found to deliver curcumin into the cytoplasm of MCF-7 cells. CONCLUSION Folate-Pluronic F87/TPGS co-modified liposomes provide a novel strategy for drug loading and targeted delivery.
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Affiliation(s)
- Wenjuan Li
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi, People's Republic of China
| | - Xiangyuan Xiong
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi, People's Republic of China
| | - Yanchun Gong
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi, People's Republic of China
| | - Ziling Li
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi, People's Republic of China
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Lin M, Song X, Zuo R, Zheng Y, Hu S, Gao S, Chen L, Zhu Y, Xu X, Liu M, Zhang J, Jiang S, Guo D. Nano-encapsulation of halofuginone hydrobromide enhances anticoccidial activity against Eimeria tenella in chickens. Biomater Sci 2023; 11:1725-1738. [PMID: 36648120 DOI: 10.1039/d2bm01543a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Coccidiosis is a worldwide epidemic intestinal disease with high incidence, which causes huge economic losses. Halofuginone hydrobromide (HF) is widely applied as an effective anticoccidial drug in the poultry industry. However, its therapeutic efficacy is severely restrained due to toxic effects, poor aqueous solubility and low permeability. Nanotechnology can improve the biological effect of drugs, and thus, reduce administered doses and toxic effects. The objective of this study was to investigate the therapeutic and preventive potential of novel HF-loaded D-α-tocopherol polyethylene glycol 1000 succinate (TPGS) polymer micelles (HTPM) for preventing coccidiosis in chickens. The HTPM were approximately spherical with a hydrodynamic diameter of 12.65 ± 0.089 nm, a zeta potential of 8.03 ± 0.242 mV, a drug loading of 14.04 ± 0.12%, and an encapsulation efficiency of 71.1 ± 4.15%. HF was encapsulated in the polymer micelles through interactions with TPGS, as characterized by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy. Cellular take up assays showed that TPGS polymer micelles could enhance drug internalization to alleviate intestinal apoptosis induced by coccidiosis and promote the necrosis of second-generation merozoites of E. tenella. Notably, clinical trials proved that 1.5 mg L-1 HTPM had a stronger anticoccidial effect on E. tenella than that of 3 mg kg-1 HF premix. Amplicon sequencing identified that HTPM could alleviate coccidiosis by restoring the structure of the gut microbiome. These findings indicated that the anticoccidial efficacy of HF was significantly enhanced after being encapsulated in polymer micelles, and further demonstrated the potential protective application of nano-encapsulating anticoccidial drugs as a promising approach to control coccidiosis in poultry. In summary, HTPM hold huge potential as an effective therapeutic agent for coccidiosis.
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Affiliation(s)
- Mengjuan Lin
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Xinhao Song
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Runan Zuo
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Yuling Zheng
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Shiheng Hu
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Shasha Gao
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Lu Chen
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Yuan Zhu
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Xiaolin Xu
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Moxin Liu
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Junren Zhang
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Shanxiang Jiang
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Dawei Guo
- Engineering Center of Innovative Veterinary Drugs, Center for Veterinary Drug Research and Evaluation, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
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Wu T, Gong Y, Li Z, Li Y, Xiong X. Preparation and in vitro/vivo evaluation of folate-conjugated pluronic F87-PLGA/TPGS mixed nanoparticles for targeted drug delivery. Curr Drug Deliv 2021; 18:1505-1514. [PMID: 33845742 DOI: 10.2174/1567201818666210412123210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/01/2021] [Accepted: 02/22/2021] [Indexed: 11/22/2022]
Abstract
AIM Folate-conjugated Pluronic F87-poly(lactic-co-glycolic acid) block copolymer (FA-F87-PLGA) was synthesized to encapsulate anticancer drug Paclitaxel (PTX) for targeted drug delivery. To further improve the curative effect, D-α-tocopheryl poly(ethylene glycol) 1000 succinate (TPGS or Vitamin E TPGS) was added to form FA-F87-PLGA/TPGS mixed NPs. METHODS FA-F87-PLGA was synthesized by the ring-opening polymerization and the structure was characterized. PTX-loaded nanoparticles were prepared with the nanoprecipitation method. The physicochemical characteristics were studied to determine the appropriate dose ratio of the FA-F87-PLGA to TPGS. The cytotoxicity against Ovarian Cancer Cells (OVCAR-3) was determined by MTT assay. The Area-Under-the Curve (AUC) and half-life were measured in the vivo pharmacokinetic studies. RESULTS Based on the optimization of particle size and embedding rate of PTX-loaded mixed NPs, the appropriate dosage ratio of FA-F87-PLGA to TPGS was finally determined to be 5:3. According to in vitro release studies, the cumulative release rate of PTX-loaded FA-F87-PLGA/TPGS mixed NPs was 92.04%, which was higher than that of nanoparticles without TPGS. The cytotoxicity studies showed that the IC50 value of PTX-loaded FA-F87-PLGA/TPGS decreased by 75.4 times and 19.7 times after 72 h treatment compared with free PTX injections and PTX-loaded FA-F87-PLGA NPs, respectively. In vivo pharmacokinetic studies indicated that FA-F87-PLGA/TPGS mixed NPs had a longer drug metabolism time and a larger Area-Under-the-Curve (AUC) compared with free PTX injections. CONCLUSION FA-F87-PLGA/TPGS mixed NPs are potential candidates for targeted drug delivery systems.
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Affiliation(s)
- Tianyi Wu
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi. China
| | - Yanchun Gong
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi. China
| | - Ziling Li
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi. China
| | - Yuping Li
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi. China
| | - Xiangyuan Xiong
- School of Life Science, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi. China
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Liu Y, Wu J, Huang L, Qiao J, Wang N, Yu D, Zhang G, Yu S, Guan Q. Synergistic effects of antitumor efficacy via mixed nano-size micelles of multifunctional Bletilla striata polysaccharide-based copolymer and D-α-tocopheryl polyethylene glycol succinate. Int J Biol Macromol 2020; 154:499-510. [DOI: 10.1016/j.ijbiomac.2020.03.136] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 03/15/2020] [Accepted: 03/15/2020] [Indexed: 11/17/2022]
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Pan XQ, Gong YC, Li ZL, Li YP, Xiong XY. Folate-conjugated pluronic/polylactic acid polymersomes for oral delivery of paclitaxel. Int J Biol Macromol 2019; 139:377-386. [DOI: 10.1016/j.ijbiomac.2019.07.224] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/22/2019] [Accepted: 07/31/2019] [Indexed: 12/13/2022]
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99mTc-Radiolabeled TPGS Nanomicelles Outperform 99mTc-Sestamibi as Breast Cancer Imaging Agent. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:4087895. [PMID: 31178670 PMCID: PMC6507097 DOI: 10.1155/2019/4087895] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/30/2019] [Accepted: 03/18/2019] [Indexed: 12/24/2022]
Abstract
D-α-Tocopheryl polyethylene glycol 1000 succinate (TPGS) is a Food and Drug Administration (FDA) approved biomaterial that can form nanosized micelles in aqueous solution. TPGS micelles stand as an interesting system to perform drug delivery as they can carry lipophilic drugs and overcome P glycoprotein efflux as well. Therefore, TPGS micelles combined with other copolymers have been reported in many cancer research studies as a carrier for therapeutic drugs. Their ability to reach tumoral tissue can also be exploited to develop imaging agents with diagnostic application. A radiolabeling method with 99mTc for TPGS nanosized micelles and their biodistribution in a healthy animal model as well as their pharmacokinetics and radiolabeling stability in vivo was previously reported. The aim of this work was to evaluate the performance of this radioactive probe as a diagnostic imaging agent compared to routinely available SPECT radiopharmaceutical, 99mTc-sestamibi. A small field of view gamma camera was used for scintigraphy studies using radiolabeled TPGS micelles in two animal models of breast cancer: syngeneic 4T1 murine cell line (injected in BALB/c mice) and chemically NMU-induced (Sprague-Dawley rats). Ex vivo radioactivity accumulation in organs of interest was measured by a solid scintillation counter, and a semiquantitative analysis was performed over acquired images as well. Results showed an absence of tumoral visualization in 4T1 model for both radioactive probes by gamma camera imaging. On the contrary, NMU-induced tumors had a clear tumor visualization by scintigraphy. A higher tumor/background ratio and more homogeneous uptake were found for radiolabeled TPGS micelles compared to 99mTc-sestamibi. In conclusion, 99mTc-radiolabeled TPGS micelles might be a potential SPECT imaging probe for diagnostic purposes.
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Qu X, Zou Y, He C, Zhou Y, Jin Y, Deng Y, Wang Z, Li X, Zhou Y, Liu Y. Improved intestinal absorption of paclitaxel by mixed micelles self-assembled from vitamin E succinate-based amphiphilic polymers and their transcellular transport mechanism and intracellular trafficking routes. Drug Deliv 2018; 25:210-225. [PMID: 29313392 PMCID: PMC6058530 DOI: 10.1080/10717544.2017.1419513] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
To ensure that antitumor drugs can be effectively transported across intestinal barrier and then quickly released in tumor cells, mixed polymeric micelles (Mix-PMs) were designed and fabricated by combining poly(2-ethyl-2-oxazoline)-vitamin E succinate (PEOz-VES) with TPGS1000 for enhancing intestinal absorption of paclitaxel. PEOz-VES exhibited an extremely low critical micelle concentration and negligible cytotoxicity. The Mix-PMs were characterized to have about 20 nm in diameter, uniform spherical morphology, high drug-loading content and sustained drug release profile with a retained pH-sensitivity. The results of the transport through Caco-2 cell monolayers and intestinal absorption revealed that Mix-PMs displayed higher transcellular transport efficiency compared with PEOz-VES micelles and Taxol®. The possible mechanism of transcellular transport for Mix-PMs was elucidated to be mainly through clathrin- and caveolae/lipid rafts-mediated transcytosis. Confocal laser scanning micrographs revealed that late endosomes, lysosomes, endoplasmic reticulum, Golgi apparatus, and mitochondria were all involved in intracellular trafficking of Mix-PMs. The proteins involved in transcytosis of Mix-PMs and finally excreted were unraveled for the first time by the analysis of proteins in the basolateral media according to the proteomics method. Consequently, the fabricated mixed polymeric micelles may have great potential in enhancing intestinal absorption and accelerating drug release in tumor cells.
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Affiliation(s)
- Xiaoyou Qu
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yang Zou
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Chuyu He
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yuanhang Zhou
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yao Jin
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yunqiang Deng
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Ziqi Wang
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Xinru Li
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yanxia Zhou
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yan Liu
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
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Patra A, Satpathy S, Shenoy AK, Bush JA, Kazi M, Hussain MD. Formulation and evaluation of mixed polymeric micelles of quercetin for treatment of breast, ovarian, and multidrug resistant cancers. Int J Nanomedicine 2018; 13:2869-2881. [PMID: 29844670 PMCID: PMC5961470 DOI: 10.2147/ijn.s153094] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background Quercetin (QCT), a naturally occurring flavonoid has a wide array of pharmacological properties such as anticancer, antioxidant and anti-inflammatory activities. QCT has low solubility in water and poor bioavailability, which limited its use as a therapeutic molecule. Polymeric micelles (PMs) is a novel drug delivery system having characteristics like smaller particle size, higher drug loading, sustained drug release, high stability, increased cellular uptake and improved therapeutic potential. In the present study, we have formulated and characterized mixed PMs (MPMs) containing QCT for increasing its anticancer potential. Methods The MPMs were prepared by thin film hydration method, and their physicochemical properties were characterized. The in vitro anticancer activity of the MPMs were tested in breast (MCF-7 and MDA-MB-231, epithelial and metastatic cancer cell lines, respectively), and ovarian (SKOV-3 and NCI/ADR, epithelial and multi-drug resistant cell lines, respectively) cancer. Results The optimal MPM formulations were obtained from Pluronic polymers, P123 and P407 with molar ratio of 7:3 (A16); and P123, P407 and TPGS in the molar ratio of 7:2:1 (A22). The size of the particles before lyophilization (24.83±0.44 nm) and after lyophilisation (37.10±4.23 nm), drug loading (8.75±0.41%), and encapsulation efficiency (87.48±4.15%) for formulation A16 were determined. For formulation A22, the particle size before lyophilization, after lyophilization, drug loading and encapsulation efficiency were 26.37±2.19 nm, 45.88±13.80 nm, 9.01±0.11% and 90.07±1.09%, respectively. The MPMs exhibited sustained release of QCT compared to free QCT as demonstrated from in vitro release experiments. The solubility of QCT was markedly improved compared to pure QCT. The MPMs were highly stable in aqueous media as demonstrated by their low critical micelle concentration. The concentration which inhibited 50% growth (IC50) values of both micellar preparations in all the cancer cell lines were significantly less compared to free QCT. Conclusion Both the MPMs containing QCT could be used for effective delivery to different type of cancer and may be considered for further development.
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Affiliation(s)
- Arjun Patra
- College of Pharmacy, Department of Pharmaceutical and Biomedical Sciences, California Health Sciences University, Clovis, CA, USA.,Institute of Pharmacy, Guru Ghasidas Vishwavidyalaya, Bilaspur (C.G.), India
| | - Swaha Satpathy
- College of Pharmacy, Department of Pharmaceutical and Biomedical Sciences, California Health Sciences University, Clovis, CA, USA.,Institute of Pharmacy, Guru Ghasidas Vishwavidyalaya, Bilaspur (C.G.), India
| | - Anitha K Shenoy
- College of Pharmacy, Department of Pharmaceutical and Biomedical Sciences, California Health Sciences University, Clovis, CA, USA
| | - Jason A Bush
- Department of Biology, California State University, Fresno, CA, USA
| | - Mohsin Kazi
- Kayyali Chair for Pharmaceutical Industries, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Muhammad Delwar Hussain
- College of Pharmacy, Department of Pharmaceutical and Biomedical Sciences, California Health Sciences University, Clovis, CA, USA
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Je HJ, Kim ES, Lee JS, Lee HG. Release Properties and Cellular Uptake in Caco-2 Cells of Size-Controlled Chitosan Nanoparticles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10899-10906. [PMID: 29172499 DOI: 10.1021/acs.jafc.7b03627] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The influences of particle size on the physicochemical, release, and cellular uptake properties of chitosan nanoparticles (CSNPs) were investigated. Ionotropic CSNPs of different sizes (200-1000 nm) loaded with two model core materials (resveratrol or coumarin-6) were prepared using tripolyphosphate and carrageenan as cross-linkers. With an increase of particle size, zeta potential (34.6 ± 0.5 to 51.1 ± 0.9) and entrapment efficiency (14.9 ± 1.4 to 40.9 ± 1.9) of the CSNPs were significantly (p < 0.05) increased and release rates were decreased. However, Caco-2 cellular uptake of CSNPs were significantly increased from 3.70 ± 0.03 to 5.24 ± 0.20 with an increase of particle size from 200 to 600 nm, whereas those significantly decreased from 5.24 ± 0.20 to 4.55 ± 0.2 for particles larger than 600 nm in transwell assay. Moreover, much the same uptake patterns were also observed in confocal microscopy and flow cytometry. Investigation of cellular uptake of CSNPs revealed positive correlations between ZP and EE and indicated the effects of complex factors of nanoparticles other than size. These results provide a better understanding of CSNPs absorption and raises the possibility of controlling alternative nanoparticle properties to enhance bioavailability.
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Affiliation(s)
- Hyun Jeong Je
- Department of Food and Nutrition, Hanyang University , 222, Wangsimni-ro, Seoungdong-gu, Seoul 04763, Republic of Korea
| | - Eun Suh Kim
- Department of Food and Nutrition, Hanyang University , 222, Wangsimni-ro, Seoungdong-gu, Seoul 04763, Republic of Korea
| | - Ji-Soo Lee
- Department of Food and Nutrition, Hanyang University , 222, Wangsimni-ro, Seoungdong-gu, Seoul 04763, Republic of Korea
| | - Hyeon Gyu Lee
- Department of Food and Nutrition, Hanyang University , 222, Wangsimni-ro, Seoungdong-gu, Seoul 04763, Republic of Korea
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Min JB, Kim ES, Lee JS, Lee HG. Preparation, characterization, and cellular uptake of resveratrol-loaded trimethyl chitosan nanoparticles. Food Sci Biotechnol 2017; 27:441-450. [PMID: 30263768 DOI: 10.1007/s10068-017-0272-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/21/2017] [Accepted: 11/24/2017] [Indexed: 02/05/2023] Open
Abstract
The aim of the study was to encapsulate resveratrol (RV) in trimethyl chitosan (TMC) nanoparticles cross-linked with tripolyphosphate (TPP) and/or alginate to achieve controlled release and improved cellular uptake. TMC (degree of quaternization of 78%) was prepared by reacting purified chitosan with iodomethane. Three types of RV-loaded TMC nanoparticles were prepared: TMC-TPP (TP-NPs), TMC-alginate (TA-NPs), and TMC-alginate-TPP (TAP-NPs). TA-NPs and TAP-NPs showed lower particle size and encapsulation efficiency (EE), better distribution, and more sustained release than TP-NPs due to the high molecular weight and viscous property of alginate. Caco-2 cellular uptake of RV was improved by TMC nanoencapsulation, and TP-NPs showed the highest uptake due to its significantly higher EE. Compared with TAP-NPs, TA-NPs with higher positive surface charge showed higher cellular uptake. Moreover, Caco-2 cell growth-inhibiting activity of RV was significantly increased by TMC nanoencapsulation and TP-NPs showed the significantly highest activity with a good agreement with the permeability results.
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Affiliation(s)
- Jeong Bin Min
- Department of Food and Nutrition, Hanyang University, 222, Wangsimni-ro, Seoungdong-gu, Seoul, 04763 Republic of Korea
| | - Eun Suh Kim
- Department of Food and Nutrition, Hanyang University, 222, Wangsimni-ro, Seoungdong-gu, Seoul, 04763 Republic of Korea
| | - Ji-Soo Lee
- Department of Food and Nutrition, Hanyang University, 222, Wangsimni-ro, Seoungdong-gu, Seoul, 04763 Republic of Korea
| | - Hyeon Gyu Lee
- Department of Food and Nutrition, Hanyang University, 222, Wangsimni-ro, Seoungdong-gu, Seoul, 04763 Republic of Korea
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Cagel M, Bernabeu E, Gonzalez L, Lagomarsino E, Zubillaga M, Moretton MA, Chiappetta DA. Mixed micelles for encapsulation of doxorubicin with enhanced in vitro cytotoxicity on breast and ovarian cancer cell lines versus Doxil ®. Biomed Pharmacother 2017; 95:894-903. [PMID: 28903185 DOI: 10.1016/j.biopha.2017.09.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 08/16/2017] [Accepted: 09/03/2017] [Indexed: 11/19/2022] Open
Abstract
Doxorubicin (DOX) is used as a "first-line" antineoplastic drug in ovarian and metastatic breast cancer. However, serious side effects, such as cardiotoxicity have been reported after DOX intravenous administration. Hence, we investigated different micelle-former biomaterials, as Soluplus®, Pluronic F127, Tetronic T1107 and d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) to develop a potential mixed micellar nanocarrier for DOX delivery. Since DOX hydrochloride is a poor candidate to be encapsulated inside the hydrophobic core of the mixed micelles, we assayed a hydrophobic complex between DOX and sodium deoxycholate (NaDC) as an excellent candidate to be encapsulated within polymeric micelles. The combination of T1107:TPGS (1:3, weight ratio) demonstrated the best physicochemical properties together with a high DL capacity (6.43% w/v). Particularly, DOX in vitro release was higher at acidic tumour microenvironment pH value (5.5) than at physiological counterpart (7.4). The hydrodynamic diameter of the DOX/NaDC-loaded mixed micellar system was 10.7nm (PDI=0.239). The in vitro cytotoxicity of the mixed micellar formulation resulted significantly (p<0.05) higher than Doxil® against ovarian (SKOV-3) and triple-negative breast cancer cells (MDA-MB- 231). Further, the in vitro cellular uptake assays demonstrated a significant increment (p<0.05) of the DOX intracellular content for the mixed micelles versus Doxil® for both, SKOV-3 (at 2, 4 and 6h of incubation) and MDA-MB-231 (at 4h of incubation) cells. These findings suggest that T1107:TPGS (1:3) mixed micelles could be employed as a potential nanotechnological platform for drug delivery of DOX.
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Affiliation(s)
- Maximiliano Cagel
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Ezequiel Bernabeu
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Lorena Gonzalez
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Química Biológica, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Eduardo Lagomarsino
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina
| | - Marcela Zubillaga
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Marcela A Moretton
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Diego A Chiappetta
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
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12
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Glycyrrhetinic acid-modified TPGS polymeric micelles for hepatocellular carcinoma-targeted therapy. Int J Pharm 2017; 529:451-464. [DOI: 10.1016/j.ijpharm.2017.07.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 07/02/2017] [Accepted: 07/04/2017] [Indexed: 12/28/2022]
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13
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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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14
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Zhao LY, Zhang WM. Recent progress in drug delivery of pluronic P123: pharmaceutical perspectives. J Drug Target 2017; 25:471-484. [PMID: 28135859 DOI: 10.1080/1061186x.2017.1289538] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This review focuses on recent investigations that used Pluronic P123 (P123) as pharmaceutical ingredients in vesicle, micelle, mixed micelle, in situ gel, tablet and emulsion. The main results from these studies show that P123 can significantly increase the stability of incorporated hydrophobic drugs with enhanced in vitro cytotoxicity and cellular uptake of anticancer drugs. Moreover, modified forms of P123 with RGD, folate or other targeted marker have shown its therapeutic potentials in various types of tumors and cancers. Furthermore, modified forms of P123 alone and/or mixed with other copolymers have less toxic effects and more tumor-specific delivery of anticancer drugs. They are promising materials as a nanoplatform for the drug delivery. Finally, the future perspectives of the field are briefly discussed.
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Affiliation(s)
- Li-Yan Zhao
- a Department of Pharmacy , Hebei North University , Zhangjiakou , PR China
| | - Wan-Ming Zhang
- a Department of Pharmacy , Hebei North University , Zhangjiakou , PR China
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15
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Cagel M, Tesan FC, Bernabeu E, Salgueiro MJ, Zubillaga MB, Moretton MA, Chiappetta DA. Polymeric mixed micelles as nanomedicines: Achievements and perspectives. Eur J Pharm Biopharm 2017; 113:211-228. [PMID: 28087380 DOI: 10.1016/j.ejpb.2016.12.019] [Citation(s) in RCA: 222] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/01/2016] [Accepted: 12/04/2016] [Indexed: 10/20/2022]
Abstract
During the past few decades, polymeric micelles have raised special attention as novel nano-sized drug delivery systems for optimizing the treatment and diagnosis of numerous diseases. These nanocarriers exhibit several in vitro and in vivo advantages as well as increased stability and solubility to hydrophobic drugs. An interesting approach for optimizing these properties and overcoming some of their disadvantages is the combination of two or more polymers in order to assemble polymeric mixed micelles. This review article gives an overview on the current state of the art of several mixed micellar formulations as nanocarriers for drugs and imaging probes, evaluating their ongoing status (preclinical or clinical stage), with special emphasis on type of copolymers, physicochemical properties, in vivo progress achieved so far and toxicity profiles. Besides, the present article presents relevant research outcomes about polymeric mixed micelles as better drug delivery systems, when compared to polymeric pristine micelles. The reported data clearly illustrates the promise of these nanovehicles reaching clinical stages in the near future.
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Affiliation(s)
- Maximiliano Cagel
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Fiorella C Tesan
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires, Argentina
| | - Ezequiel Bernabeu
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Maria J Salgueiro
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires, Argentina
| | - Marcela B Zubillaga
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Marcela A Moretton
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Diego A Chiappetta
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
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16
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Li Y, He H, Lu W, Jia X. A poly(amidoamine) dendrimer-based drug carrier for delivering DOX to gliomas cells. RSC Adv 2017. [DOI: 10.1039/c7ra00713b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
G4–FA–PEG/DOX with surface-modified PEG and FA and encapsulated DOX showed enhanced in vitro cytotoxicity and cellular uptake via FR-mediated endocytosis.
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Affiliation(s)
- Yan Li
- College of Materials Science and Engineering
- Hebei University of Engineering
- Handan 056038
- China
- Beijing National Laboratory for Molecular Sciences
| | - Hai He
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
| | - Wanliang Lu
- State Key Laboratory of Natural and Biomimetic Drugs and School of Pharmaceutical Science
- Peking University
- Beijing
- China
| | - Xinru Jia
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
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17
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Cheng X, Yan H, Jia X, Zhang Z. Preparation and in vivo/in vitro evaluation of formononetin phospholipid/vitamin E TPGS micelles. J Drug Target 2016; 24:161-8. [PMID: 26325229 DOI: 10.3109/1061186x.2015.1064435] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
To enhance the formononetin (FN) antitumor effect, we developed a passive targeting FN-contained formulation. FN-contained Vitamin E d-α-tocopheryl polyethylene glycol 1000 succinate (vitamin E TPGS or TPGS)/phospholipid micelles were prepared by the solvent injection method. Particle size, polydispersity, zeta potential, encapsulation efficiency, drug release profile, and micelles morphology were evaluated and characterized by various methods including high-performance liquid chromatography, dynamic light scattering, and transmission electron microscopy. Cellular uptake of micelles was evaluated with fluorescence imaging coupled with HPLC method. Cytotoxicity of FN micelles and free FN was compared using MTT method. In vivo imaging was employed to assess the accumulation of DiR micelles and free DiR at tumor site. The antitumor effect of FN micelles was examined in tumor-bearing mice. The results showed that prepared FN micelles had an average particle diameter of 111.91 ± 5.82 nm with good stability. FN micelles enhanced the cellular uptake and improved cell cytotoxicity than free FN. Furthermore, DiR micelles quickly accumulated at the tumor site than free DiR. FN micelles significantly improved tumor inhibition rate compared to that observed with free FN in tumor-bearing mice with great biosafety. Thus, FN micelles demonstrated a clear treatment advantage and provided an ideal drug administration system to improve the antitumor effect of FN.
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18
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Muddineti OS, Ghosh B, Biswas S. Current trends in the use of vitamin E-based micellar nanocarriers for anticancer drug delivery. Expert Opin Drug Deliv 2016; 14:715-726. [DOI: 10.1080/17425247.2016.1229300] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Omkara Swami Muddineti
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Telangana, India
| | - Balaram Ghosh
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Telangana, India
| | - Swati Biswas
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Telangana, India
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19
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Novel Soluplus ® —TPGS mixed micelles for encapsulation of paclitaxel with enhanced in vitro cytotoxicity on breast and ovarian cancer cell lines. Colloids Surf B Biointerfaces 2016; 140:403-411. [DOI: 10.1016/j.colsurfb.2016.01.003] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 12/11/2015] [Accepted: 01/01/2016] [Indexed: 11/22/2022]
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20
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Junyaprasert VB, Dhanahiranpruk S, Suksiriworapong J, Sripha K, Moongkarndi P. Enhanced toxicity and cellular uptake of methotrexate-conjugated nanoparticles in folate receptor-positive cancer cells by decorating with folic acid-conjugated d -α-tocopheryl polyethylene glycol 1000 succinate. Colloids Surf B Biointerfaces 2015; 136:383-93. [DOI: 10.1016/j.colsurfb.2015.09.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 08/11/2015] [Accepted: 09/07/2015] [Indexed: 12/31/2022]
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21
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Kuo YC, Chen YC. Targeting delivery of etoposide to inhibit the growth of human glioblastoma multiforme using lactoferrin- and folic acid-grafted poly(lactide-co-glycolide) nanoparticles. Int J Pharm 2015; 479:138-49. [DOI: 10.1016/j.ijpharm.2014.12.070] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 12/11/2014] [Accepted: 12/30/2014] [Indexed: 12/11/2022]
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22
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Abbad S, Wang C, Waddad AY, Lv H, Zhou J. Preparation, in vitro and in vivo evaluation of polymeric nanoparticles based on hyaluronic acid-poly(butyl cyanoacrylate) and D-alpha-tocopheryl polyethylene glycol 1000 succinate for tumor-targeted delivery of morin hydrate. Int J Nanomedicine 2015; 10:305-20. [PMID: 25609946 PMCID: PMC4293365 DOI: 10.2147/ijn.s73971] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Herein, we describe the preparation of a targeted cellular delivery system for morin hydrate (MH), based on a low-molecular-weight hyaluronic acid-poly(butyl cyanoacrylate) (HA-PBCA) block copolymer. In order to enhance the therapeutic effect of MH, D-alpha-tocopheryl polyethylene glycol 1000 succinate (TPGS) was mixed with HA-PBCA during the preparation process. The MH-loaded HA-PBCA “plain” nanoparticle (MH-PNs) and HA-PBCA/TPGS “mixed” nanoparticles (MH-MNs) were concomitantly characterized in terms of loading efficiency, particle size, zeta potential, critical aggregation concentration, and morphology. The obtained MH-PNs and MH-MNs exhibited a spherical morphology with a negative zeta potential and a particle size less than 200 nm, favorable for drug targeting. Remarkably, the addition of TPGS resulted in about 1.6-fold increase in drug-loading. The in vitro cell viability experiment revealed that MH-MNs enhanced the cytotoxicity of MH in A549 cells compared with MH solution and MH-PNs. Furthermore, blank MNs containing TPGS exhibited selective cytotoxic effects against cancer cells without diminishing the viability of normal cells. In addition, the cellular uptake study indicated that MNs resulted in 2.28-fold higher cellular uptake than that of PNs, in A549 cells. The CD44 receptor competitive inhibition and the internalization pathway studies suggested that the internalization mechanism of the nanoparticles was mediated mainly by the CD44 receptors through a clathrin-dependent endocytic pathway. More importantly, MH-MNs exhibited a higher in vivo antitumor potency and induced more tumor cell apoptosis than did MH-PNs, following intravenous administration to S180 tumor-bearing mice. Overall, the results imply that the developed nanoparticles are promising vehicles for the targeted delivery of lipophilic anticancer drugs.
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Affiliation(s)
- Sarra Abbad
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, People's Republic of China ; Department of Pharmacy, Abou Bekr Belkaid University, Tlemcen, Algeria
| | - Cheng Wang
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Ayman Yahia Waddad
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Huixia Lv
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Jianping Zhou
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, People's Republic of China
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23
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Kaur L, Jain SK, Singh K. Vitamin E TPGS based nanogel for the skin targeting of high molecular weight anti-fungal drug: development and in vitro and in vivo assessment. RSC Adv 2015. [DOI: 10.1039/c5ra08374e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Enhanced skin permeation and deposition potential of nanogel containing Vitamin E TPGS.
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Affiliation(s)
- Lakhvir Kaur
- Department of Pharmaceutical Sciences
- Guru Nanak Dev University
- Amritsar
- India
| | - Subheet Kumar Jain
- Department of Pharmaceutical Sciences
- Guru Nanak Dev University
- Amritsar
- India
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24
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Shi C, Zhang Z, Wang F, Ji X, Zhao Z, Luan Y. Docetaxel-loaded PEO–PPO–PCL/TPGS mixed micelles for overcoming multidrug resistance and enhancing antitumor efficacy. J Mater Chem B 2015; 3:4259-4271. [DOI: 10.1039/c5tb00401b] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A schematic diagram of DTX-loaded PEO–PPO–PCL/TPGS mixed micelles in vivo for overcoming multidrug resistance and enhancing antitumor efficacy.
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Affiliation(s)
- Chunhuan Shi
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Zhiqing Zhang
- College of Science
- China University of Petroleum
- Qingdao
- P. R. China
| | - Fang Wang
- College of Science
- China University of Petroleum
- Qingdao
- P. R. China
| | - Xiaoqing Ji
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Zhongxi Zhao
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Yuxia Luan
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
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25
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Wang S, Chen R, Morott J, Repka MA, Wang Y, Chen M. mPEG-b-PCL/TPGS mixed micelles for delivery of resveratrol in overcoming resistant breast cancer. Expert Opin Drug Deliv 2014; 12:361-73. [DOI: 10.1517/17425247.2014.951634] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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26
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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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27
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Jin SE, Jin HE, Hong SS. Targeted delivery system of nanobiomaterials in anticancer therapy: from cells to clinics. BIOMED RESEARCH INTERNATIONAL 2014; 2014:814208. [PMID: 24672796 PMCID: PMC3950423 DOI: 10.1155/2014/814208] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 12/25/2013] [Indexed: 12/14/2022]
Abstract
Targeted delivery systems of nanobiomaterials are necessary to be developed for the diagnosis and treatment of cancer. Nanobiomaterials can be engineered to recognize cancer-specific receptors at the cellular levels and to deliver anticancer drugs into the diseased sites. In particular, nanobiomaterial-based nanocarriers, so-called nanoplatforms, are the design of the targeted delivery systems such as liposomes, polymeric nanoparticles/micelles, nanoconjugates, norganic materials, carbon-based nanobiomaterials, and bioinspired phage system, which are based on the nanosize of 1-100 nm in diameter. In this review, the design and the application of these nanoplatforms are discussed at the cellular levels as well as in the clinics. We believe that this review can offer recent advances in the targeted delivery systems of nanobiomaterials regarding in vitro and in vivo applications and the translation of nanobiomaterials to nanomedicine in anticancer therapy.
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Affiliation(s)
- Su-Eon Jin
- Department of Drug Development, College of Medicine, Inha University, 3-ga, Sinheung dong, Jung-gu, Incheon 400-712, Republic of Korea
| | - Hyo-Eon Jin
- Department of Bioengineering, University of California, Berkeley and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Soon-Sun Hong
- Department of Drug Development, College of Medicine, Inha University, 3-ga, Sinheung dong, Jung-gu, Incheon 400-712, Republic of Korea
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28
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Khoee S, Kavand A. Preparation, co-assembling and interfacial crosslinking of photocurable and folate-conjugated amphiphilic block copolymers for controlled and targeted drug delivery: smart armored nanocarriers. Eur J Med Chem 2013; 73:18-29. [PMID: 24374349 DOI: 10.1016/j.ejmech.2013.11.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Revised: 11/08/2013] [Accepted: 11/23/2013] [Indexed: 11/30/2022]
Abstract
Novel pH-sensitive, biodegradable and biocompatible copolymers based on polycaprolactone-poly(ethylene glycol) (PCL/PEG) were synthesized and further modified with folic acid and/or acryloyl chloride. The mixed polymeric micelles were formed by self-assembling of folated-copolymer and non-folated-copolymer with different compositions via nanoprecipitation method. The solubilization of quercetin as anti-cancer drug by the mixed micelle with the optimized composition (folated/non-folated 20/80) was more efficient than those made of each one alone. Nanogels with different crosslinking density were produced in the presence of ethylene glycol dimethacrylate (EGDMA) as the crosslinker via a photochemical method. Interfacial crosslinking of acrylated groups were utilized to produce a core-shell spherical nanoparticle to evaluate their in-vitro drug release and degradation rate.
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Affiliation(s)
- Sepideh Khoee
- Polymer Laboratory, Chemistry Department, School of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran.
| | - Alireza Kavand
- Polymer Laboratory, Chemistry Department, School of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
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29
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Zhou J, Wang J, Xu Q, Xu S, Wen J, Yu Z, Yang D. Folate-chitosan-gemcitabine core-shell nanoparticles targeted to pancreatic cancer. Chin J Cancer Res 2013; 25:527-35. [PMID: 24255576 DOI: 10.3978/j.issn.1000-9604.2013.09.04] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 09/23/2013] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE Human pancreatic cancer is one of the most common clinical malignancies. The effect of comprehensive treatment based on surgery is general. The effects of chemotherapy were not obvious mainly because of lack of targeting and chemoresistance in pancreatic cancer. This study aimed to investigate the effects of folate receptor (FR)-mediated gemcitabine FA-Chi-Gem nanoparticles with a core-shell structure by electrostatic spray on pancreatic cancer. METHODS In this study, the levels of expression of FR in six human pancreatic cancer cell lines were studied by immunohistochemical analysis. The uptake rate of isothiocyanate-labeled FA-Chi nanoparticles in FR high expression cell line COLO357 was assessed by fluorescence microscope and the inhibition rate of FA-Chi-Gem nanoparticles on COLO357 cells was evaluated by MTT assay. Moreover, the biodistribution of PEG-FA-ICGDER02-Chi in the orthotopic pancreatic tumor model was observed using near-infrared imaging and the human pancreatic cancer orthotopic xenografts were treated with different nanoparticles and normal saline control. RESULTS The expression of FR in COLO357 was the highest among the six pancreatic cancer cell lines. The FR mainly distributed on cell membrane and fewer in the cytoplasm in pancreatic cancer. Moreover, the absorption rate of the FA-Chi-Gem nanoparticles was more than the Chi nanoparticles without FA modified. The proliferation of COLO357 was significantly inhibited by FA-Chi-Gem nanoparticles. The PEG-FA-ICGDER02-Chi nanoparticles were enriched in tumor tissue in human pancreatic cancer xenografts, while non-targeted nanoparticles were mainly in normal liver tissue. PEG-FA-Gem-Chi significantly inhibited the growth of human pancreatic cancer xenografts (PEG-FA-Gem-Chi vs. Gem, t=22.950, P=0.000). CONCLUSIONS PEG-FA-FITC-Chi nanoparticles might be an effective targeted drug for treating human FR-positive pancreatic cancer.
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Affiliation(s)
- Jiahua Zhou
- Department of General Surgery, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210029, China
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Nair K L, Jagadeeshan S, Nair S A, Kumar GSV. Folic acid conjugated δ-valerolactone-poly(ethylene glycol) based triblock copolymer as a promising carrier for targeted doxorubicin delivery. PLoS One 2013; 8:e70697. [PMID: 23990912 PMCID: PMC3749165 DOI: 10.1371/journal.pone.0070697] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 06/04/2013] [Indexed: 11/19/2022] Open
Abstract
The aim of this study is to test the hypothesis that the newly synthesized poly(δ-valerolactone)/poly(ethylene glycol)/poly(δ-valerolactone) (VEV) copolymer grafted with folic acid would impart targetability and further enhance the anti-tumor efficacy of doxorubicin (DOX). Here, folic acid conjugated VEV (VEV-FOL) was synthesized by a modified esterification method and characterized using IR and NMR. DOX loaded VEV-FOL micelles were synthesized using a novel solvent evaporation method and were obtained with a mean diameter of 97 nm with high encapsulation efficiency and sustained in vitro release profile. Comparative studies of polymer micelles with and without folate for cellular uptake and cytotoxicity were done on folate receptor-positive breast cancer cell line, MDAMB231. The intracellular uptake tests showed significant increase in folate micellar uptake when compared to non-folate-mediated micelles. MTT assay followed by apoptosis assays clearly indicated that folate decorated micelles showed significantly better cytotoxicity (IC50 = 0.014 µM) and efficiency to induce apoptosis than other treated groups. Moreover, a significant G2/M arrest was induced by DOX loaded VEV-FOL micelles at a concentration where free drug failed to show any activity. Thus, our results show that the folic acid-labeled VEV copolymer is a promising biomaterial with controlled and sustainable tumor targeting ability for anticancer drugs which can open new frontiers in the area of targeted chemotherapy.
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Affiliation(s)
- Lekha Nair K
- Chemical Biology, Rajiv Gandhi Centre for Biotechnology, Poojappura, Kerala, India
| | - Sankar Jagadeeshan
- Cancer Research, Rajiv Gandhi Centre for Biotechnology, Poojappura, Kerala, India
| | - Asha Nair S
- Cancer Research, Rajiv Gandhi Centre for Biotechnology, Poojappura, Kerala, India
| | - G. S. Vinod Kumar
- Chemical Biology, Rajiv Gandhi Centre for Biotechnology, Poojappura, Kerala, India
- * E-mail:
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Ma P, Mumper RJ. Anthracycline Nano-Delivery Systems to Overcome Multiple Drug Resistance: A Comprehensive Review. NANO TODAY 2013; 8:313-331. [PMID: 23888183 PMCID: PMC3718073 DOI: 10.1016/j.nantod.2013.04.006] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Anthracyclines (doxorubicin, daunorubicin, and idarubicin) are very effective chemotherapeutic drugs to treat many cancers; however, the development of multiple drug resistance (MDR) is one of the major limitations for their clinical applications. Nano-delivery systems have emerged as the novel cancer therapeutics to overcome MDR. Up until now, many anthracycline nano-delivery systems have been developed and reported to effectively circumvent MDR both in-vitro and in-vivo, and some of these systems have even advanced to clinical trials, such as the HPMA-doxorubicin (HPMA-DOX) conjugate. Doxil, a DOX PEGylated liposome formulation, was developed and approved by FDA in 1995. Unfortunately, this formulation does not address the MDR problem. In this comprehensive review, more than ten types of developed anthracycline nano-delivery systems to overcome MDR and their proposed mechanisms are covered and discussed, including liposomes; polymeric micelles, conjugate and nanoparticles; peptide/protein conjugates; solid-lipid, magnetic, gold, silica, and cyclodextrin nanoparticles; and carbon nanotubes.
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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
| | - Russell J. Mumper
- 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
- UNC Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, NC 27599, USA
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Kim Y, Pourgholami MH, Morris DL, Lu H, Stenzel MH. Effect of shell-crosslinking of micelles on endocytosis and exocytosis: acceleration of exocytosis by crosslinking. Biomater Sci 2013; 1:265-275. [DOI: 10.1039/c2bm00096b] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Wu X, Li S. Synthesis of polylactide/poly(ethylene glycol) diblock copolymers with functional endgroups. POLYM INT 2012. [DOI: 10.1002/pi.4385] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaohan Wu
- Max Mousseron Institute on Biomolecules, UMR CNRS 5247, University Montpellier I; 34093; Montpellier; France
| | - Suming Li
- Max Mousseron Institute on Biomolecules, UMR CNRS 5247, University Montpellier I; 34093; Montpellier; France
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Zhang Z, Tan S, Feng SS. Vitamin E TPGS as a molecular biomaterial for drug delivery. Biomaterials 2012; 33:4889-906. [DOI: 10.1016/j.biomaterials.2012.03.046] [Citation(s) in RCA: 437] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Accepted: 03/13/2012] [Indexed: 11/16/2022]
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Mi Y, Liu Y, Feng SS. Formulation of Docetaxel by folic acid-conjugated d-α-tocopheryl polyethylene glycol succinate 2000 (Vitamin E TPGS(2k)) micelles for targeted and synergistic chemotherapy. Biomaterials 2011; 32:4058-66. [PMID: 21396707 DOI: 10.1016/j.biomaterials.2011.02.022] [Citation(s) in RCA: 215] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2010] [Accepted: 02/12/2011] [Indexed: 01/14/2023]
Abstract
Although high efficacy has been showed, Paclitaxel and Docetaxel cause serious side effects due to the adjuvant used in their clinical formulation Taxol® and Taxotere®. We developed a micelle system with a newly synthesized TPGS(2k) polymer, which shows lower CMC of 0.0219 mg/ml compared with 0.2 mg/ml for traditional micelles with TPGS involved, to achieve sustained and controlled drug delivery with Docetaxel used as a model anti-cancer drug. The TPGS(2k) micelles were further conjugated to folic acid (FA) for targeted drug delivery. The Docetaxel-loaded TPGS(2k) micelles with and without FA conjugation were found of desired size and size distribution, high drug encapsulation efficiency and favorable drug release. In vitro studies using MCF-7 cancer cells demonstrated significantly the higher cellular uptake of the formulated drug for TPGS(2k) micelle formulation than that for Taxotere®. The targeting effects for the FA conjugated TPGS(2k) micelles are also demonstrated. The IC₅₀ value, which is the drug concentration needed for 50% cell viability in the designated time period, is 103.4, 1.280 and 0.1480 μg/ml for MCF-7 cancer cells after 24, 48, and 72 h treatment respectively, which is greatly decreased to be 0.526, 0.251 and 0.233 μg/ml, i.e. a 99.5%, 80.4% decrease and 57.5% increase for the TPGS(2k) micelle formulation, and further decreased to be 0.1780, 0.1520 and 0.1140 μg/ml, i.e. a 99.8%, 88.1% and 23.0% decrease for the folic acid conjugated micelles, respectively. A synergistic effect between TPGS(2k) and Docetaxel is also achieved. The present work represents a new concept in the design of drug delivery systems--the carrier materials of the drug delivery system can also have therapeutic effects, which either modulate the side effects of, or promote a synergistic interaction with the formulated drug.
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Affiliation(s)
- Yu Mi
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Block E5, 02-11, 4 Engineering Drive 4, Singapore 117576, Singapore
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Ebrahim Attia AB, Ong ZY, Hedrick JL, Lee PP, Ee PLR, Hammond PT, Yang YY. Mixed micelles self-assembled from block copolymers for drug delivery. Curr Opin Colloid Interface Sci 2011. [DOI: 10.1016/j.cocis.2010.10.003] [Citation(s) in RCA: 240] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Chen S, Cheng SX, Zhuo RX. Self-assembly strategy for the preparation of polymer-based nanoparticles for drug and gene delivery. Macromol Biosci 2010; 11:576-89. [PMID: 21188686 DOI: 10.1002/mabi.201000427] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Indexed: 12/13/2022]
Abstract
Nanoparticulate drug-delivery systems have attained much importance because of their injectable property, the possibility to achieve passive targeting and active targeting, and unique advantages to realize stimuli tailored delivery. Molecular self-assembly is a powerful method for fabricating polymer-based nanoparticles, which involves various driving forces, such as hydrophobic interactions, electrostatic interactions, stereocomplexation, host/guest interactions and hydrogen bonding. By fine tuning one or many types of these interactions, self-assemblies with a wide range of structures and functions could be fabricated. In this article, recent developments in different self-assembly strategies for the preparation of polymer-based nanoparticulate delivery systems are discussed.
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Affiliation(s)
- Si Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, China
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Zhang L, Hu CH, Cheng SX, Zhuo RX. Hyperbranched amphiphilic polymer with folate mediated targeting property. Colloids Surf B Biointerfaces 2010; 79:427-33. [PMID: 20537873 DOI: 10.1016/j.colsurfb.2010.05.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2010] [Revised: 04/24/2010] [Accepted: 05/02/2010] [Indexed: 12/31/2022]
Abstract
Hyperbranched amphiphilic polymer PG6-PLA-PEG was synthesized through grafting hydrophobic poly(D,L-lactide) (PLA) segments and hydrophilic poly(ethylene glycol) (PEG) blocks to hydrophilic hyperbranched polyglycerol core (PG6), subsequently. To achieve cell targeting property, folic acid (FA) was further incorporated to the hyperbranched polymer to obtain PG6-PLA-PEG-FA. The polymers were characterized by (1)H NMR, UV-vis spectroscopy and combined size-exclusion chromatography and multiangle laser light scattering (SEC-MALLS) analysis. Due to the amphiphilicity, PG6-PLA-PEG and PG6-PLA-PEG-FA could self-assemble to form nanoparticles in aqueous solutions. Antineoplastic drug, paclitaxel (PTX), was encapsulated into the nanoparticles. The nanoparticles were observed by transmission electron microscopy (TEM). The targeting property of PG6-PLA-PEG-FA was evaluated in vitro. The results showed that the PTX loaded PG6-PLA-PEG-FA nanoparticles exhibited enhanced inhibition on folate receptor positive tumor cells due to the folate mediated targeting.
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Affiliation(s)
- Lei Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, PR China
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