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Xiao S, Wang Y, Ma W, Zhou P, Wang B, Wu Z, Wen Q, Xiong K, Liu Y, Fu S. Intraperitoneal administration of thermosensitive hydrogel Co-loaded with norcantharidin nanoparticles and oxaliplatin inhibits malignant ascites of hepatocellular carcinoma. Drug Deliv 2022; 29:2713-2722. [PMID: 35975331 PMCID: PMC9387330 DOI: 10.1080/10717544.2022.2111480] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Malignant ascites is a common complication of some advanced cancers. Although intraperitoneal (IP) administration of chemotherapy drugs is routinely used to treat cancerous ascites, conventional drugs have poor retention and therefore need to be administered frequently to maintain a sustained anti-tumor effect. In this study, a thermosensitive hydrogel composite loaded with norethindrone nanoparticles (NPs) and oxaliplatin (N/O/Hydrogel) was developed to inhibit ascites of hepatocellular carcinoma (HCC) through IP injection. N/O/Hydrogel induced apoptosis in the H22 cells in vitro, and significantly inhibited ascites formation, tumor cell proliferation and micro-angiogenesis in a mouse model of advanced HCC with ascites, and prolonged the survival of tumor-bearing mice. Histological examination of the major organs indicated that the hydrogel system is safe. Taken together, the N/O/Hydrogel system is a promising platform for in-situ chemotherapy of malignant ascites.
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Affiliation(s)
- Susu Xiao
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Yu Wang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China.,Health Management Center, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Wenqiong Ma
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Ping Zhou
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Biqiong Wang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Zhouxue Wu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Qian Wen
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Kang Xiong
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Yanlin Liu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Shaozhi Fu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
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2
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Wang F, Li X, Hu X, Zhuang W, Lai J, Wang W, Sun X, Wang H, Li Q. Preparation and evaluation of camptothecin analogues-loaded lyophilization using Kolliphor® HS 15 as carrier. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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3
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Shi Z, Liu J, Tian L, Li J, Gao Y, Xing Y, Yan W, Hua C, Xie X, Liu C, Liang C. Insights into stimuli-responsive diselenide bonds utilized in drug delivery systems for cancer therapy. Biomed Pharmacother 2022; 155:113707. [PMID: 36122520 DOI: 10.1016/j.biopha.2022.113707] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Due to the complexity and particularity of cancer cell microenvironments, redox responsive drug delivery systems (DDSs) for cancer therapy have been extensively explored. Compared with widely reported cancer treatment systems based on disulfide bonds, diselenide bonds have better redox properties and greater anticancer efficiency. In this review, the significance and application of diselenide bonds in DDSs are summarized, and the stimulation sensitivity of diselenide bonds is comprehensively reported. The potential and prospects for the application of diselenide bonds in next-generation anticancer drug treatment systems are extensively discussed.
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Affiliation(s)
- Zhenfeng Shi
- Department of Urology Surgery Center, The People's Hospital of Xinjiang Uyghur Autonomous Region, Urumqi 830002, PR China.
| | - Jifang Liu
- Faculty of Pharmacy, Shaanxi University of Science & Technology, Xi'an 710021, PR China; College of Life Science, Northwest University, Xi'an 710069, PR China.
| | - Lei Tian
- Faculty of Pharmacy, Shaanxi University of Science & Technology, Xi'an 710021, PR China; College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Jingyi Li
- Faculty of Pharmacy, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Yue Gao
- Faculty of Pharmacy, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Yue Xing
- Faculty of Pharmacy, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Wenjing Yan
- Faculty of Pharmacy, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Chenyu Hua
- Faculty of Pharmacy, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Xiaolin Xie
- Shaanxi Panlong Pharmaceutical Group Co., Ltd. Xi'an 710025, PR China.
| | - Chang Liu
- Zhuhai Jinan Selenium Source Nanotechnology Co., Ltd., Zhuhai 519030, PR China.
| | - Chengyuan Liang
- Faculty of Pharmacy, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
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Siram K, Karuppaiah A, Gautam M, Sankar V. Fabrication of Hyaluronic Acid Surface Modified Solid Lipid Nanoparticles Loaded with Imatinib Mesylate for Targeting Human Breast Cancer MCF-7 Cells. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02265-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Glycosylated paclitaxel mixed nanomicelles: Increasing drug brain accumulation and enhancing its in vitro antitumoral activity in glioblastoma cell lines. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.103046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abdel-Fatah SS, El-Batal AI, El-Sherbiny GM, Khalaf MA, El-Sayed AS. Production, bioprocess optimization and γ-irradiation of Penicillium polonicum, as a new Taxol producing endophyte from Ginko biloba. ACTA ACUST UNITED AC 2021; 30:e00623. [PMID: 34026575 PMCID: PMC8120861 DOI: 10.1016/j.btre.2021.e00623] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 11/27/2022]
Abstract
Twenty-eight fungal endophytes were recovered from the different parts of Ginkgo biloba and screened for their Taxol producing potency. Among these isolates, Penicillium polonicum AUMC14487 was reported as the potent Taxol producer (90.53 μg/l). The chemical identity of the extracted Taxol was verified from the TLC, HPLC, NMR, EDX, and FTIR analyses. The extracted Taxol displayed a strong antiproliferative activity against HEPG2 (IC50 4.06 μM) and MCF7 (IC50 6.07 μM). The yield of Taxol by P. polonicum was optimized by nutritional optimization with the Response Surface Methodology (RSM) using Plackett-Burman and Central Composite Designs. In addition to nutritional optimization, the effect of γ-irradiation of the spores of P. polonicum on its Taxol producing potency was evaluated. The yield of Taxol by P. polonicum was increased via nutritional optimization by response surface methodology with Plackett-Burman and FCCD designs, and γ-irradiation by about 4.5 folds, comparing to the control culture. The yield of Taxol was increased by about 1.2 folds (401.2 μg/l) by γ -irradiation of the isolates at 0.5-0.75 kGy, comparing to the control cultures (332.2 μg/l). The highest Taxol yield was obtained by growing P. polonicum on modified Czapek's- Dox medium (sucrose 40.0 g/l, malt extract 20.0 g/l, peptone 2.0 g/l, K2PO4 2.0 g/l, KCl 1.0 g/l, NaNO3 2.0 g/l, MgSO4. 5H2O 1.0 g/l) of pH 7.0 at 30.0 °C for 7.0 days. From the FCCD design, sucrose, malt extract and incubation time being the highest significant variables medium components affecting the Taxol production by P. polonicum.
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Affiliation(s)
- Sobhy S Abdel-Fatah
- Drug Radiation Research Dep., Biotechnology Division, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, Cairo, Egypt
| | - Ahmed I El-Batal
- Drug Radiation Research Dep., Biotechnology Division, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, Cairo, Egypt
| | - Gamal M El-Sherbiny
- Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt
| | - Mahmoud A Khalaf
- Drug Radiation Research Dep., Biotechnology Division, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, Cairo, Egypt.,Microbiology Dep., Biotechnology Division, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, Cairo, Egypt
| | - Ashraf S El-Sayed
- Enzymology and Fungal Biotechnology Lab (EFBL), Botany and Microbiology Department, Faculty of Science, Zagazig University, 44519, Egypt
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Liu X, Zhao T, Xu Y, Huo P, Xu X, Zhang Z, Tian Q, Zhang N. Co-administration of paclitaxel and 2-methoxyestradiol using folate-conjugated human serum albumin nanoparticles for improving drug resistance and antitumor efficacy. Pharm Dev Technol 2020; 26:1-10. [PMID: 32985928 DOI: 10.1080/10837450.2020.1829640] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The use of chemotherapeutic drug paclitaxel (PTX) for the treatment of tumors has several limitations, including multidrug resistance (MDR) and serious adverse reactions. This research aims to co-encapsulate PTX and the chemosensitizer 2-methoxyestradiol (2-ME) into folate-conjugated human serum albumin nanoparticles (FA-HSANPs) to reduce multiple drug resistance and improve antitumor efficiency. The results show PTX/2-ME@FA-HSANPs had uniform particle size (180 ± 12.31 nm) and high encapsulation efficacy. It also exhibited highly potent cytotoxicity and apoptosis-inducing activities in the G2/M phase of PTX-resistant EC109/Taxol cells. Moreover, PTX/2-ME@FA-HSANPs not only displayed better inhibition of tumor growth in S-180 tumor-bearing mice than PTX alone but also reduced pathological damage to normal tissues. In summary, PTX/2-ME@FA-HSANPs could be a promising vehicle for tumor therapy and reducing drug resistance. This research will also provide references for other MDR treatment.
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Affiliation(s)
- Xinyang Liu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Taoqian Zhao
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Yue Xu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Pengchao Huo
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Xia Xu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Zhenzhong Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Qingfeng Tian
- School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Nan Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
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Yang Q, Shi G, Chen X, Lin Y, Cheng L, Jiang Q, Yan X, Jiang M, Li Y, Zhang H, Wang H, Wang Y, Wang Q, Zhang Y, Liu Y, Su X, Dai L, Tang M, Li J, Zhang L, Qian Z, Yu D, Deng H. Nanomicelle protects the immune activation effects of Paclitaxel and sensitizes tumors to anti-PD-1 Immunotherapy. Theranostics 2020; 10:8382-8399. [PMID: 32724476 PMCID: PMC7381738 DOI: 10.7150/thno.45391] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/12/2020] [Indexed: 02/07/2023] Open
Abstract
Paclitaxel (PTX) has shown pleiotropic immunologic effects on the tumor microenvironment, and nanomicelle has emerged as a promising strategy for PTX delivery. However, the detailed mechanisms remain to be fully elucidated. Meanwhile, immunogenic cell death (ICD) is an effective approach to activate the immune system. This study investigated the ICD effect of PTX and how nanomicelle affected the immune-activation ability of PTX. Methods: The ICD effects of PTX were identified via the expression of ICD markers and cell vaccine experiment. Tumor size and overall survival in multiple animal models with treatment were monitored to evaluate the antitumor effects. The mechanisms of PTX-induced ICD and antitumor immunity were determined by detecting gene expression related to ER stress and analyzing immune cell profile in tumor after treatment. Results: We revealed the immune-regulation mechanism of PTX nanomicelle by inducing ICD, which can promote antigen presentation by dendritic cells (DCs) and activate antitumor immunity. Notably, nanomicelle encapsulation protected the ICD effects and immune activation, which were hampered by immune system impairment caused by chemotherapy. Compared with traditional formulations, a low dose of nanomicelle-encapsulated PTX (nano-PTX) treatment induced immune-dependent tumor control, which increased the infiltration and function of both T cells and DCs within tumors. However, this antitumor immunity was hampered by highly expressed PD-1 on tumor-infiltrating CD8+ T cells and upregulated PD-L1 on both immune cells and tumor cells after nano-PTX treatment. Combination therapy with a low dose of nano-PTX and PD-1 antibodies elicited CD8+ T cell-dependent antitumor immunity and remarkably improved the therapeutic efficacy. Conclusions: Our results provide systemic insights into the immune-regulation ability of PTX to induce ICD, which acts as an inducer of endogenous vaccines through ICD effects, and also provides an experimental basis for clinical combination therapy with nano-PTX and PD-1 antibodies.
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Lu A, Petit E, Jelonek K, Orchel A, Kasperczyk J, Wang Y, Su F, Li S. Self-assembled micelles prepared from bio-based hydroxypropyl methyl cellulose and polylactide amphiphilic block copolymers for anti-tumor drug release. Int J Biol Macromol 2020; 154:39-47. [DOI: 10.1016/j.ijbiomac.2020.03.094] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/04/2020] [Accepted: 03/11/2020] [Indexed: 12/11/2022]
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10
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El-Sayed AS, El-Sayed MT, Rady AM, Zein N, Enan G, Shindia A, El-Hefnawy S, Sitohy M, Sitohy B. Exploiting the Biosynthetic Potency of Taxol from Fungal Endophytes of Conifers Plants; Genome Mining and Metabolic Manipulation. Molecules 2020; 25:E3000. [PMID: 32630044 PMCID: PMC7412027 DOI: 10.3390/molecules25133000] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/17/2020] [Accepted: 06/23/2020] [Indexed: 11/17/2022] Open
Abstract
Endophytic fungi have been considered as a repertoire for bioactive secondary metabolites with potential application in medicine, agriculture and food industry. The biosynthetic pathways by fungal endophytes raise the argument of acquisition of these machineries of such complex metabolites from the plant host. Diterpenoids "Taxol" is the most effective anticancer drug with highest annual sale, since its discovery in 1970 from the Pacific yew tree, Taxus brevifolia. However, the lower yield of Taxol from this natural source (bark of T. brevifolia), availability and vulnerability of this plant to unpredicted fluctuation with the ecological and environmental conditions are the challenges. Endophytic fungi from Taxus spp. opened a new avenue for industrial Taxol production due to their fast growth, cost effectiveness, independence on climatic changes, feasibility of genetic manipulation. However, the anticipation of endophytic fungi for industrial Taxol production has been challenged by the loss of its productivity, due to the metabolic reprograming of cells, downregulating the expression of its encoding genes with subculturing and storage. Thus, the objectives of this review were to (1) Nominate the endophytic fungal isolates with the Taxol producing potency from Taxaceae and Podocarpaceae; (2) Emphasize the different approaches such as molecular manipulation, cultural optimization, co-cultivation for enhancing the Taxol productivities; (3) Accentuate the genome mining of the rate-limiting enzymes for rapid screening the Taxol biosynthetic machinery; (4) Triggering the silenced rate-limiting genes and transcriptional factors to activates the biosynthetic gene cluster of Taxol.
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Affiliation(s)
- Ashraf S.A. El-Sayed
- Enzymology and Fungal Biotechnology Lab (EFBL), Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (M.T.E.-S.); (G.E.); (A.S.); (S.E.-H.)
| | - Manal T. El-Sayed
- Enzymology and Fungal Biotechnology Lab (EFBL), Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (M.T.E.-S.); (G.E.); (A.S.); (S.E.-H.)
| | - Amgad M. Rady
- Faculty of Biotechnology, October University for Modern Sciences and Arts, Cairo 12566, Egypt;
| | - Nabila Zein
- Chemistry Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt;
| | - Gamal Enan
- Enzymology and Fungal Biotechnology Lab (EFBL), Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (M.T.E.-S.); (G.E.); (A.S.); (S.E.-H.)
| | - Ahmed Shindia
- Enzymology and Fungal Biotechnology Lab (EFBL), Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (M.T.E.-S.); (G.E.); (A.S.); (S.E.-H.)
| | - Sara El-Hefnawy
- Enzymology and Fungal Biotechnology Lab (EFBL), Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt; (M.T.E.-S.); (G.E.); (A.S.); (S.E.-H.)
| | - Mahmoud Sitohy
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44519, Egypt;
| | - Basel Sitohy
- Department of Clinical Microbiology, Infection and Immunology, Umeå University, SE-90185 Umeå, Sweden
- Department of Radiation Sciences, Oncology, Umeå University, SE-90185 Umeå, Sweden
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Production and Characterization of Taxol as Anticancer Agent from Aspergillus terreus. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2019. [DOI: 10.22207/jpam.13.4.17] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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12
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Restoring the Taxol biosynthetic machinery of Aspergillus terreus by Podocarpus gracilior Pilger microbiome, with retrieving the ribosome biogenesis proteins of WD40 superfamily. Sci Rep 2019; 9:11534. [PMID: 31395904 PMCID: PMC6687737 DOI: 10.1038/s41598-019-47816-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 07/04/2019] [Indexed: 11/13/2022] Open
Abstract
Attenuating the Taxol yield of Aspergillus terreus with the subculturing and storage were the technical challenges that prevent this fungus to be a novel platform for industrial Taxol production. Thus, the objective of this study was to unravel the metabolic machineries of A. terreus associated with attenuation of Taxol productivity, and their restoring potency upon cocultivation with the Podocarpus gracilior microbiome. The Taxol yield of A. terreus was drastically reduced with the fungal subculturing. At the 10th subculture, the yield of Taxol was reduced by four folds (78.2 µg/l) comparing to the original culture (268 µg/l), as authenticated from silencing of molecular expression of the Taxol-rate limiting enzymes (GGPPS, TDS, DBAT and BAPT) by qPCR analyses. The visual fading of A. terreus conidial pigmentation with the subculturing, revealing the biosynthetic correlation of melanin and Taxol. The level of intracellular acetyl-CoA influx was reduced sequentially with the fungal subculturing, rationalizing the decreasing on Taxol and melanin yields. Fascinatingly, the Taxol biosynthetic machinery and cellular acetyl-CoA of A. terreus have been completely restored upon addition of 3% surface sterilized leaves of P. gracilior, suggesting the implantation of plant microbiome on re-triggering the molecular machinery of Taxol biosynthesis, their transcriptional factors, and/or increasing the influx of Acetyl-CoA. The expression of the proteins of 74.4, 68.2, 37.1 kDa were exponentially suppressed with A. terreus subculturing, and strongly restored upon addition of P. gracilior leaves, ensuring their profoundly correlation with the molecular expression of Taxol biosynthetic genes. From the proteomic analysis, the restored proteins 74.4 kDa of A. terreus upon addition of P. gracilior leaves were annotated as ribosome biogenesis proteins YTM and microtubule-assembly proteins that belong to WD40 superfamily. Thus, further ongoing studies for molecular cloning and expression of these genes with strong promotors in A. terreus, have been initiated, to construct a novel platform of metabolically stable A. terreus for sustainable Taxol production. Attenuating the Taxol yield of A. terreus with the multiple-culturing and storage might be due to the reduction on main influx of acetyl-CoA, or downregulation of ribosome biogenesis proteins that belong to WD40 protein superfamily.
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Pandya AD, Jäger E, Bagheri Fam S, Höcherl A, Jäger A, Sincari V, Nyström B, Štěpánek P, Skotland T, Sandvig K, Hrubý M, Mælandsmo GM. Paclitaxel-loaded biodegradable ROS-sensitive nanoparticles for cancer therapy. Int J Nanomedicine 2019; 14:6269-6285. [PMID: 31496685 PMCID: PMC6689768 DOI: 10.2147/ijn.s208938] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 06/13/2019] [Indexed: 12/15/2022] Open
Abstract
Background Reactive oxygen species (ROS), such as hydrogen peroxide and superoxide, trigger biodegradation of polymer-based nanoparticles (NPs) bearing pinacol-type boronic ester groups. These NPs may selectively release their cargo, in this case paclitaxel (PTX), at the high levels of ROS present in the intracellular environment of inflamed tissues and most tumors. Purpose The main objective was to determine anti-tumor efficacy of PTX-loaded ROS-sensitive NPs and to examine whether macrophage infiltration had any impact on treatment efficacy. Methods NPs were synthesized and their characteristics in the presence of H2O2 were demonstrated. Both confocal microscopy as well as flow cytometry approaches were used to determine degradation of ROS-sensitive NPs. HeLa cells were cultured in vitro and used to establish tumor xenografts in nude mice. In vivo experiments were performed to understand toxicity, biodistribution and anti-tumor efficacy of the NPs. Moreover, we performed immunohistochemistry on tumor sections to study infiltration of M1 and M2 subsets of macrophages. Results We demonstrated that PTX delivered in NPs containing a ROS-sensitive polymer exhibits a better anti-tumor efficacy than PTX in NPs containing ROS-non-sensitive polymer, free PTX or Abraxane® (nab-PTX). The biodistribution revealed that ROS-sensitive NPs exhibit retention in liver, spleen and lungs, suggesting a potential to target cancer metastasizing to these organs. Finally, we demonstrated a correlation between infiltrated macrophage subsets and treatment efficacy, possibly contributing to the efficient anti-tumor effects. Conclusion Treatment with ROS-sensitive NPs containing PTX gave an improved therapeutic effect in HeLa xenografts than their counterpart, free PTX or nab-PTX. Our data revealed a correlation between macrophage infiltration and efficiency of the different antitumor treatments, as the most effective NPs resulted in the highest infiltration of the anti-tumorigenic M1 macrophages.
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Affiliation(s)
- Abhilash D Pandya
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, The Norwegian Radium Hospital, Oslo, Norway
| | - Eliézer Jäger
- Institute of Macromolecular Chemistry v.v.i, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Shahla Bagheri Fam
- Department of Radiation Biology, Institute for Cancer Research, Oslo University Hospital, The Norwegian Radium Hospital, Oslo, Norway
| | - Anita Höcherl
- Institute of Macromolecular Chemistry v.v.i, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Alessandro Jäger
- Institute of Macromolecular Chemistry v.v.i, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Vladimir Sincari
- Institute of Macromolecular Chemistry v.v.i, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Bo Nyström
- Department of Chemistry, University of Oslo, Oslo, Norway
| | - Petr Štěpánek
- Institute of Macromolecular Chemistry v.v.i, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Tore Skotland
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, The Norwegian Radium Hospital, Oslo, Norway
| | - Kirsten Sandvig
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, The Norwegian Radium Hospital, Oslo, Norway.,Department of Biosciences, University of Oslo, Oslo, Norway
| | - Martin Hrubý
- Institute of Macromolecular Chemistry v.v.i, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Gunhild M Mælandsmo
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, The Norwegian Radium Hospital, Oslo, Norway.,Institute of Medical Biology, Faculty of Health Sciences, The Arctic University of Norway - University of Tromsø, Tromsø, Norway
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14
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Preparation and anticancer activity evaluation of self-assembled paclitaxel conjugated MPEG-PCL micelles on 4T1 cells. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.11.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Espinoza SM, Patil HI, San Martin Martinez E, Casañas Pimentel R, Ige PP. Poly-ε-caprolactone (PCL), a promising polymer for pharmaceutical and biomedical applications: Focus on nanomedicine in cancer. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2018.1539990] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sergio Miguel Espinoza
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Legaria 694, Col. Irrigación, 11500 Ciudad de México
| | - Harshal Indrabhan Patil
- Department of Pharmaceutics, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Dhule, Maharashtra 425405, India
| | - Eduardo San Martin Martinez
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Legaria 694, Col. Irrigación, 11500 Ciudad de México
| | - Rocio Casañas Pimentel
- CONACYT-Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Legaria 694, Col. Irrigación, 11500 Ciudad de México
| | - Pradum Pundlikrao Ige
- Department of Pharmaceutics, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Dhule, Maharashtra 425405, India
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Dunn SS, Luft JC, Parrott MC. Zapped assembly of polymeric (ZAP) nanoparticles for anti-cancer drug delivery. NANOSCALE 2019; 11:1847-1855. [PMID: 30637420 PMCID: PMC6512809 DOI: 10.1039/c8nr09944h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The starting hypothesis for this work was that microwave synthesis could enable the rapid assembly of polymers into size-specific nanoparticles (NPs). The Zapped Assembly of Polymeric (ZAP) NPs was initially realized using poly(lactic-co-glycolic acid)-poly(ethylene glycol) (PLGA-PEG) block copolymers and distinct microwave reaction parameters. A library of polymeric NPs was generated with sizes ranging from sub-20 nm to 350 nm and low polydispersity. Select ZAP NPs were synthesized in 30 seconds at different scales and concentrations, up to 200 mg and 100 mg mL-1, without substantial size variation. ZAP NPs with diameters of 25 nm, 50 nm, and 100 nm were loaded with the chemotherapeutic paclitaxel (PXL), demonstrated unique release profiles, and exhibited dose-dependent cytotoxicity similar to Taxol. Incorporation of d-alpha tocopheryl polyethylene glycol succinate (TPGS) and PLGA33k allowed for the production of a sub-40 nm NP with an exceptionally high loading of PXL (12.6 wt%, ca. 7 times the original NP) and a slower release profile. This ZAP NP platform demonstrated scalable, flexible, and tunable synthesis with potential toward clinical scale production of size-specific drug carriers.
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Affiliation(s)
- Stuart S. Dunn
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - J. Christopher Luft
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Carolina Institute for Nanomedicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Matthew C. Parrott
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Carolina Institute for Nanomedicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Department of Radiology, Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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El-Sayed AS, Ali DM, Yassin MA, Zayed RA, Ali GS. Sterol inhibitor “Fluconazole” enhance the Taxol yield and molecular expression of its encoding genes cluster from Aspergillus flavipes. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.10.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Li W, Li W, Kuang Y, Yang T, Zhu J, Xu Z, Yuan X, Li M, Zhang Z, Yang Y. Toxicity Assessment of PEG-PCCL Nanoparticles and Preliminary Investigation on Its Anti-tumor Effect of Paclitaxel-Loading. NANOSCALE RESEARCH LETTERS 2018; 13:253. [PMID: 30143890 PMCID: PMC6108981 DOI: 10.1186/s11671-018-2615-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 06/25/2018] [Indexed: 02/05/2023]
Abstract
The efficiency of single treatment of conventional chemotherapy drugs is unpleasantly reduced by the physiological barriers of tumors. In this regard, nanoparticles have become attractive for achieving such medical purpose of targeted cancer therapy by delivering anti-tumor agents to the needed area. A novel drug deliverer, poly (ethylene glycol) carboxyl-poly (ε-caprolactone) (PEG-PCCL), has been reported to be highly hydrophilic and stable, while little is known about its organic toxicity. This study focused on systemic toxicity assessments of PEG-PCCL. The pharmacokinetics of PTX-loaded PEG-PCCL (PEG-PCCL/PTX) and its anti-tumor effect were preliminarily investigated. In the present work, PEG-PCCL was characterized by laser particle size analyzer and transmission electron microscopy. The cytotoxicity was investigated by MTT test, LDH leakage assay, immunofluorescence, and transmission electron microscopy. Hemolysis, phlebitis, and organ toxicity tests were performed to demonstrate the biocompatibility and acute biotoxicity. H22 tumor-bearing mice were used to evaluate the pharmacokinetics of the micells of PEG-PCCL/PTX and its anti-tumor effect. The results showed that the size of PEG-PCCL nanospheres was 97 ± 2.6 nm. PEG-PCCL treatment showed little cytotoxicity and good biocompatibility, and did not exhibit organ toxicity. PTX-loading efficiency was 49.98%. The pharmacokinetic study on H22 tumor-bearing mice revealed that PEG-PCCL/PTX has higher stability and slower release than PTX alone. Together, these results suggest that PEG-PCCL nanosphere has little toxicity to organisms and is a potential candidate of biocompatible drug vehicle for hydrophobic drugs.
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Affiliation(s)
- Wei Li
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China.,Department of Burns surgery, Sichuan Academy of Medical Sciences and Sichuan Province People's Hospital, Chengdu, 610072, China
| | - Wanyi Li
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Yu Kuang
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Ting Yang
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Jie Zhu
- Department of Microbiology, Guizhou Medical University, Guiyang, 55000, China
| | - Zilin Xu
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Xiang Yuan
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Mingyuan Li
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Zhongwei Zhang
- ICU, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yuan Yang
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041, China.
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Induction of Taxol biosynthesis by Aspergillus terreus, endophyte of Podocarpus gracilior Pilger, upon intimate interaction with the plant endogenous microbes. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.04.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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20
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He H, Jiang S, Xie Y, Lu Y, Qi J, Dong X, Zhao W, Yin Z, Wu W. Reassessment of long circulation via monitoring of integral polymeric nanoparticles justifies a more accurate understanding. NANOSCALE HORIZONS 2018; 3:397-407. [PMID: 32254127 DOI: 10.1039/c8nh00010g] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Monitoring of payloads results in a biased perception of long circulation of nanoparticles. Instead, herein, the long-circulation effect was re-confirmed by monitoring integral nanoparticles, but circulation was not found to be as long as generally perceived. In contrast, disparate pharmacokinetics were obtained by monitoring a model drug, paclitaxel, highlighting the bias of the conventional protocol.
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Affiliation(s)
- Haisheng He
- Key Laboratory of Smart Drug Delivery of MOE and PLA, School of Pharmacy, Fudan University, Shanghai 201203, China.
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21
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Zhang X, Wu Y, Zhang M, Mao J, Wu Y, Zhang Y, Yao J, Xu C, Guo W, Yu B. Sodium cholate-enhanced polymeric micelle system for tumor-targeting delivery of paclitaxel. Int J Nanomedicine 2017; 12:8779-8799. [PMID: 29263668 PMCID: PMC5732553 DOI: 10.2147/ijn.s150196] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Polymeric micelles are attractive nanocarriers for tumor-targeted delivery of paclitaxel (PTX). High antitumor efficacy and low toxicity require that PTX mainly accumulated in tumors with little drug exposure to normal tissues. However, many PTX-loaded micelle formulations suffer from low stability, fast drug release, and lack of tumor-targeting capability in the circulation. To overcome these challenges, we developed a micellar formulation that consists of sodium cholate (NaC) and monomethoxy poly (ethylene glycol)-block-poly (d,l-lactide) (mPEG-PDLLA). METHODS PTX-loaded NaC-mPEG-PDLLA micelles (PTX-CMs) and PTX-loaded mPEG-PDLLA micelles (PTX-Ms) were formulated, and their characteristics, particle size, surface morphology, release behavior in vitro, pharmacokinetics and in vivo biodistributions were researched. In vitro and in vivo tumor inhibition effects were systematically investigated. Furthermore, the hemolysis and acute toxicity of PTX-CMs were also evaluated. RESULTS The size of PTX-CMs was 53.61±0.75 nm and the ζ-potential was -19.73±0.68 mV. PTX was released much slower from PTX-CMs than PTX-Ms in vitro. Compared with PTX-Ms, the cellular uptake of PTX-CMs was significantly reduced in macrophages and significantly increased in human cancer cells, and therefore, PTX-CMs showed strong growth inhibitory effects on human cancer cells. In vivo, the plasma AUC0-t of PTX-CMs was 1.8-fold higher than that of PTX-Ms, and 5.2-fold higher than that of Taxol. The biodistribution study indicated that more PTX-CMs were accumulated in tumor than PTX-Ms and Taxol. Furthermore, the significant antitumor efficacy of PTX-CMs was observed in mice bearing BEL-7402 hepatocellular carcinoma and A549 lung carcinoma. Results from drug safety assessment studies including acute toxicity and hemolysis test revealed that the PTX-CMs were safe for in vivo applications. CONCLUSION These results strongly revealed that NaC-mPEG-PDLLA micelles can tumor-target delivery of PTX and enhance drug penetration in tumor, suggesting that NaC-mPEG-PDLLA micelles are promising nanocarrier systems for anticancer drugs delivery.
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Affiliation(s)
- Xiaomin Zhang
- Beijing Key Laboratory of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing
- Push-Kang Biotechnology, Hangzhou
| | - Yibo Wu
- Beijing Key Laboratory of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing
| | - Min Zhang
- Beijing Key Laboratory of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing
| | - Jing Mao
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, Beijing University of Civil Engineering and Architecture, Beijing, China
| | - Yun Wu
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, USA
| | | | - Ju Yao
- Push-Kang Biotechnology, Hangzhou
| | - Chang Xu
- Push-Kang Biotechnology, Hangzhou
| | - Wenli Guo
- Beijing Key Laboratory of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing
| | - Bo Yu
- Push-Kang Biotechnology, Hangzhou
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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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23
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Efficient inhibition of cervical cancer by dual drugs loaded in biodegradable thermosensitive hydrogel composites. Oncotarget 2017; 9:282-292. [PMID: 29416613 PMCID: PMC5787464 DOI: 10.18632/oncotarget.22965] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/09/2017] [Indexed: 01/02/2023] Open
Abstract
Background and Purpose We aimed to explore the anti-tumor effect and mechanism of the combination of cisplatin (DDP)-containing thermosensitive hydrogel (PEG-PCL-PEG, or PECE) and paclitaxel (PTX)-loaded MPEG-PCL polymeric micelles called PDMP on human cervical carcinoma (HeLa) cell. In our previous studies, we found that PDMP in situ treatment of lung cancer will be liable to have potential in Lung cancer patients. Results Compared with other treatments, PDMP was most effective in prolonging survival time (P < 0.05), inhibiting tumor growth (P < 0.05), decreasing expression of CD133 (P < 0.05), CD31 (P < 0.05), and aldehyde dehydrogenase 1 (ALDH1) (P > 0.05), inducing G1 phase arrest (P < 0.05), increasing the apoptosis rate (P < 0.05), and in expressing ATM and γ-H2AX (P < 0.05). Conclusions PDMP is regarded as a promising anti-tumor reactant, when it comes to the treatment of cervical carcinoma. Methods we used a xenograft cervical cancer model to verify the anti-tumor activity of PDMP and to explore its mechanism of action. Mice were intratumorally administered with NS, PECE, PTX+DDP or PDMP. After two days of treatment, three mice per group were sacrificed and tumor tissue was harvested. Levels of histone H2AX phosphorylation (γ-H2AX) were determined by immunohistochemistry and ataxia telangiectasia mutated(ATM) protein levels were measured by western blot analysis. In addition, it would sacrifice each of group of three mice through 10 days’ treatment, what’s more, it would harvest tumor by virtue of flow cytometry and immunohistochemical analysis. It would like to use there maining mice to analyze tumor growth and survival. The remaining mice were analyzed for tumor growth and survival.
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24
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Sathyamoorthy N, Magharla D, Chintamaneni P, Vankayalu S. Optimization of paclitaxel loaded poly (ε-caprolactone) nanoparticles using Box Behnken design. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2017. [DOI: 10.1016/j.bjbas.2017.06.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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25
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Xiong M, Lei Q, You X, Gao T, Song X, Xia Y, Ye T, Zhang L, Wang N, Yu L. Mannosylated liposomes improve therapeutic effects of paclitaxel in colon cancer models. J Microencapsul 2017; 34:513-521. [PMID: 28705043 DOI: 10.1080/02652048.2017.1339739] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Mannose receptor (MR) is a highly effective endocytic receptor. It is closely related to tumour immune escape and metastasis. We found that MR was highly expressed in some colon cancer cell lines such as CT26 and HCT116 cells. Therefore, MR might be a potential target in colon cancer therapy. In this study, we aimed to develop mannosylated liposomes containing anticancer drug paclitaxel and investigate the potential effects on targeted therapy for colon cancer. Mannosylated liposomes were prepared by film dispersion method. Characterisation, drug release behaviour, cytotoxicity, cellular uptake, anti-tumour efficacy and safety profiles of liposomes were investigated. The results showed that mannosylated liposomes had a higher CT26 cells uptake efficiency and tumour inhibition rate, which might be due to the target effect to MR. And no notable toxicity was observed. Taken together, these data demonstrated that mannosylated liposomes could target colon cancer and improve the efficacy of chemotherapy.
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Affiliation(s)
- Menghua Xiong
- a Lab of Chemistry , Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center , Chengdu , P.R. China
| | - Qian Lei
- a Lab of Chemistry , Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center , Chengdu , P.R. China
| | - Xinyu You
- b School of Chemical Engineering , Sichuan University , Chengdu , P.R. China
| | - Tiantao Gao
- a Lab of Chemistry , Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center , Chengdu , P.R. China
| | - Xuejiao Song
- a Lab of Chemistry , Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center , Chengdu , P.R. China
| | - Yong Xia
- a Lab of Chemistry , Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center , Chengdu , P.R. China
| | - Tinghong Ye
- a Lab of Chemistry , Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center , Chengdu , P.R. China
| | - Lidan Zhang
- a Lab of Chemistry , Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center , Chengdu , P.R. China
| | - Ningyu Wang
- a Lab of Chemistry , Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center , Chengdu , P.R. China
| | - Luoting Yu
- a Lab of Chemistry , Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center , Chengdu , P.R. China
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Tan L, Peng J, Zhao Q, Zhang L, Tang X, Chen L, Lei M, Qian Z. A Novel MPEG-PDLLA-PLL Copolymer for Docetaxel Delivery in Breast Cancer Therapy. Theranostics 2017; 7:2652-2672. [PMID: 28819454 PMCID: PMC5558560 DOI: 10.7150/thno.19680] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 04/27/2017] [Indexed: 02/05/2023] Open
Abstract
Satisfactory drug loading capacity and stability are the two main factors that determine the anti-cancer performance. In general, the stability of the micelles is reduced when the drug loading (DL) is increased. Therefore, it was a challenge to have high drug loading capacity and good stability. In this study, we introduced a hydrophilic poly (L-Lysine) (PLL) segment with different molecular-weights into the monomethoxy poly (ethylene glycol)-poly (D, L-lactide) (MPEG-PDLLA) block copolymer to obtain a series of novel triblock MPEG-PDLLA-PLL copolymers. We found that the micelles formed by a specific MPEG2k-PDLLA4k-PLL1k copolymer could encapsulate docetaxel (DTX) with a satisfactory loading capacity of up to 20% (w/w) via the thin film hydration method, while the stability of drug loaded micellar formulation was still as good as that of micelles formed by MPEG2k-PDLLA1.7k with drug loading of 5% (w/w). The results from computer simulation study showed that compared with MPEG2k-PDLLA1.7k, the molecular chain of MPEG2k-PDLLA4k-PLL1k could form a more compact funnel-shaped structure when interacted with DTX. This structure favored keeping DTX encapsulated in the copolymer molecules, which improved the DL and stability of the nano-formulations. The in vitro and in vivo evaluation showed that the DTX loaded MPEG2k-PDLLA4k-PLL1k (DTX/MPEG2k-PDLLA4k-PLL1k) micelles exhibited more efficiency in tumor cell growth inhibition. In conclusion, the MPEG2k-PDLLA4k-PLL1k micelles were much more suitable than MPEG2k-PDLLA1.7k for DTX delivery, and then the novel nano-formulations showed better anti-tumor efficacy in breast cancer therapy.
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Affiliation(s)
| | | | | | | | | | | | | | - Zhiyong Qian
- State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Sichuan, China
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Yu Y, Xu S, You H, Zhang Y, Yang B, Sun X, Yang L, Chen Y, Fu S, Wu J. In vivo synergistic anti-tumor effect of paclitaxel nanoparticles combined with radiotherapy on human cervical carcinoma. Drug Deliv 2017; 24:75-82. [PMID: 28155566 PMCID: PMC8241140 DOI: 10.1080/10717544.2016.1230902] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
In this study, our purpose was to explore the synergistic anti-tumor effect and mechanism of paclitaxel nanoparticles (PTX-NPs) combined with radiotherapy (RT) on human cervical carcinoma (HeLa). PTX-NPs were prepared by a solid dispersion method using methoxy poly(ethylene glycol)–poly(ɛ-caprolactone) (MPEG–PCL), which combined with RT exerted a potent and high efficient effect against cervical cancer. In vivo antitumor activity of PTX-NPs combined with RT, was estimated using nude mice carrying Hela cell xenograft tumor. The results were evaluated using microfluorine-18-deoxyglucose PET/computed tomography (18F-FDG PET/CT) and immunohistochemistry. The results showed that PTX-NPs possessed a more efficient effect than PTX when combined with RT (p < 0.05). PTX-NPs in combination with RT might inhibit cell proliferation through its action on Ki-67, and decreased micro-vessel density (MVD) associated with CD31 and vascular endothelial growth factor (VEGF). These results suggested that PTX-NPs possessed a synergistic anti-tumor effect against cervical cancer when combined with RT.
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Affiliation(s)
| | - Shan Xu
- a Department of Oncology and
| | | | | | - Bo Yang
- a Department of Oncology and
| | | | | | - Yue Chen
- b Department of Nuclear Medicine , the Affiliated Hospital of Southwest Medical University , Luzhou , China
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Liu D, Zhang H, Cito S, Fan J, Mäkilä E, Salonen J, Hirvonen J, Sikanen TM, Weitz DA, Santos HA. Core/Shell Nanocomposites Produced by Superfast Sequential Microfluidic Nanoprecipitation. NANO LETTERS 2017; 17:606-614. [PMID: 28060521 DOI: 10.1021/acs.nanolett.6b03251] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Although a number of techniques exist for generating structured organic nanocomposites, it is still challenging to fabricate them in a controllable, yet universal and scalable manner. In this work, a microfluidic platform, exploiting superfast (milliseconds) time intervals between sequential nanoprecipitation processes, has been developed for high-throughput production of structured core/shell nanocomposites. The extremely short time interval between the sequential nanoprecipitation processes, facilitated by the multiplexed microfluidic design, allows us to solve the instability issues of nanocomposite cores without using any stabilizers. Beyond high throughput production rate (∼700 g/day on a single device), the generated core/shell nanocomposites harness the inherent ultrahigh drug loading degree and enhanced payload dissolution kinetics of drug nanocrystals and the controlled drug release from polymer-based nanoparticles.
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Affiliation(s)
- Dongfei Liu
- Division of Pharmaceutical Chemistry and Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki , FI-00014 Helsinki, Finland
- John A. Paulson School of Engineering and Applied Sciences, Harvard University , Cambridge, Massachusetts 02138, United States
| | - Hongbo Zhang
- Division of Pharmaceutical Chemistry and Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki , FI-00014 Helsinki, Finland
- John A. Paulson School of Engineering and Applied Sciences, Harvard University , Cambridge, Massachusetts 02138, United States
| | - Salvatore Cito
- Division of Pharmaceutical Chemistry and Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki , FI-00014 Helsinki, Finland
| | - Jin Fan
- Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University , 210029 Nanjing, China
| | - Ermei Mäkilä
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku , FI-20014 Turku, Finland
| | - Jarno Salonen
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku , FI-20014 Turku, Finland
| | - Jouni Hirvonen
- Division of Pharmaceutical Chemistry and Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki , FI-00014 Helsinki, Finland
| | - Tiina M Sikanen
- Division of Pharmaceutical Chemistry and Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki , FI-00014 Helsinki, Finland
| | - David A Weitz
- John A. Paulson School of Engineering and Applied Sciences, Harvard University , Cambridge, Massachusetts 02138, United States
| | - Hélder A Santos
- Division of Pharmaceutical Chemistry and Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki , FI-00014 Helsinki, Finland
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Toward targeted therapy in chemotherapy-resistant pancreatic cancer with a smart triptolide nanomedicine. Oncotarget 2016; 7:8360-72. [PMID: 26840019 PMCID: PMC4884998 DOI: 10.18632/oncotarget.7073] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 01/13/2016] [Indexed: 02/07/2023] Open
Abstract
Chemoresistance is the major impediment for treating pancreatic cancer. Herb-derived compound triptolide (TP) can inhibit proliferation of chemo-resistant pancreatic cancer (CPC) cell lines through multiple mechanisms, which exhibited superior anticancer efficacy compared with gemcitabine. However, toxicity due to non-specific exposure to healthy tissues hindered its clinical translation. Herein we successfully achieved targeting CPC cells and avoiding exposure to healthy tissues for TP by nucleolin-specific aptamer (AS1411) mediated polymeric nanocarrier. We conjugated AS1411 aptamer to carboxy terminated poly(ethylene glycol)–block–poly(d, l-lactide) (HOOC-PEG-PDLLA), then prepared AS1411-PEG-PDLLA micelle loading TP (AS-PPT) through solid dispersion technique. AS-PPT showed more antitumor activity than TP and equivalent specific binding ability with gemcitabine-resistant human pancreatic cancer cell (MIA PaCa-2) to AS1411 aptamer in vitro. Furthermore, we studied the distribution of AS-PPT (Cy3-labed TP) at tissue and cellular levels using biophotonic imaging technology. The results showed AS1411 facilitated TP selectively accumulating in tumor tissues and targeting CPC cells. The lifetime of the MIA PaCa-2 cell-bearing mice administrated with AS-PPT was efficiently prolonged than that of the mice subjected to the clinical anticancer drug Gemzar®in vivo. Such work provides a new strategy for overcoming the drug resistance of pancreatic cancer.
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Zhang L, Tan L, Chen L, Chen X, Long C, Peng J, Qian Z. A simple method to improve the stability of docetaxel micelles. Sci Rep 2016; 6:36957. [PMID: 27833135 PMCID: PMC5105067 DOI: 10.1038/srep36957] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 10/24/2016] [Indexed: 02/05/2023] Open
Abstract
Self-assembled polymeric micelles have been widely applied in drug delivery systems. In this study, we found that pH value of micellar system solution was the decisive factor of physical stability. Furthermore, the weak basic solution could maintain the solution clarification for a relative long time. To investigate the stability of polymeric micelles in different pH solutions, the micellar particle size and the docetaxel content remaining in solution were detected at predetermined time points. The crystallographic assay of freeze-drying powder was characterized by an X-ray diffractometer. In vitro release results indicated that the PBS had little influence on the sustained-release effect of docetaxel-loaded polymeric micelles (DPM). Besides, the safety of micellar formulation was determined by an MTT assay on HEK293 cells, and the anti-tumor activity was tested on MCF-7 cells. The results demonstrated that DPM adjusted with PBS (DPM (PBS)) was of low toxicity and maintained the effectiveness of docetaxel. In vivo antitumor results indicated that DPM (PBS) had better antitumor efficacy than common docetaxel injection (DTX). Thus it was concluded that regulation of micellar solution PH by PBS is a safe and effective method to improve the physical stability of DPM. It might promote the application of micellar formulation in clinical applications.
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Affiliation(s)
- Lan Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China.,Research and Development Department, Guangdong Zhongsheng Pharmacy, Dongguan, 523325, China
| | - LiWei Tan
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China
| | - LiJuan Chen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China
| | - XiaoXin Chen
- Research and Development Department, Guangdong Zhongsheng Pharmacy, Dongguan, 523325, China
| | - ChaoFeng Long
- Research and Development Department, Guangdong Zhongsheng Pharmacy, Dongguan, 523325, China
| | - JinRong Peng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China
| | - ZhiYong Qian
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, China
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31
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Preparation and evaluation of teniposide-loaded polymeric micelles for breast cancer therapy. Int J Pharm 2016; 513:118-129. [DOI: 10.1016/j.ijpharm.2016.09.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 08/25/2016] [Accepted: 09/02/2016] [Indexed: 11/15/2022]
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32
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He H, Zhang J, Xie Y, Lu Y, Qi J, Ahmad E, Dong X, Zhao W, Wu W. Bioimaging of Intravenous Polymeric Micelles Based on Discrimination of Integral Particles Using an Environment-Responsive Probe. Mol Pharm 2016; 13:4013-4019. [DOI: 10.1021/acs.molpharmaceut.6b00705] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Haisheng He
- School
of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery of MOE and PLA, Shanghai 201203, China
| | - Jian Zhang
- School
of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery of MOE and PLA, Shanghai 201203, China
- Key
Laboratory for Special Functional Materials of the Ministry of Education, Henan University, Kaifeng 475001, China
| | - Yunchang Xie
- School
of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery of MOE and PLA, Shanghai 201203, China
| | - Yi Lu
- School
of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery of MOE and PLA, Shanghai 201203, China
| | - Jianping Qi
- School
of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery of MOE and PLA, Shanghai 201203, China
| | - Ejaj Ahmad
- School
of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery of MOE and PLA, Shanghai 201203, China
| | - Xiaochun Dong
- School
of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery of MOE and PLA, Shanghai 201203, China
| | - Weili Zhao
- School
of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery of MOE and PLA, Shanghai 201203, China
- Key
Laboratory for Special Functional Materials of the Ministry of Education, Henan University, Kaifeng 475001, China
| | - Wei Wu
- School
of Pharmacy, Fudan University, Key Laboratory of Smart Drug Delivery of MOE and PLA, Shanghai 201203, China
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Synthesis, characterization and drug loading property of Monomethoxy-Poly(ethylene glycol)-Poly(ε-caprolactone)-Poly(D,L-lactide) (MPEG-PCLA) copolymers. Sci Rep 2016; 6:34069. [PMID: 27677842 PMCID: PMC5039728 DOI: 10.1038/srep34069] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 09/07/2016] [Indexed: 02/05/2023] Open
Abstract
Amphiphilic block copolymers have attracted a great deal of attention in drug delivery systems. In this work, a series of monomethoxy-poly (ethylene glycol)-poly (ε-caprolactone-co-D,L-lactide) (MPEG-PCLA) copolymers with variable composition of poly (ε-caprolactone) (PCL) and poly (D,L-lactide) (PDLLA) were prepared via ring-opening copolymerization of ε-CL and D,L-LA in the presence of MPEG and stannous octoate. The structure and molecular weight were characterized by nuclear magnetic resonance (NMR) and gel permeation chromatography (GPC). The crystallinity, hydrophilicity, thermal stability and hydrolytic degradation behavior were investigated in detail, respectively. The results showed that the prepared amphiphilic MPEG-PCLA copolymers have adjustable properties by altering the composition of PCLA, which make it convenient for clinical applications. Besides, the drug loading properties were also studied. Docetaxel (DTX) could be entrapped in MPEG-PCLA micelles with high loading capacity and encapsulation efficiency. And all lyophilized DTX-loaded MPEG-PCLA micelles except MPEG-PCL micelles were readily re-dissolved in normal saline at 25 °C. In addition, DTX-loaded MPEG-PCLA micelles showed a slightly enhanced antitumor activity compared with free DTX. Furthermore, DTX micelles exhibited a slower and sustained release behavior in vitro, and higher DTX concentration and longer retention time in vivo. The results suggested that the MPEG-PCLA copolymer with the adjustable ratio of PCL to PDLLA may be a promising drug delivery carrier for DTX.
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Quillaja saponin: A prospective emulsifier for the preparation of solid lipid nanoparticles. Colloids Surf B Biointerfaces 2016; 147:274-280. [PMID: 27521748 DOI: 10.1016/j.colsurfb.2016.07.065] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 07/03/2016] [Accepted: 07/31/2016] [Indexed: 01/21/2023]
Abstract
Quillaja saponin (QS) is a non-ionic amphiphilic surfactant of natural origin. In the present study, we evaluated its potential to form solid lipid nanoparticles (SLNs) in the presence of stearic acid (SA) as a lipid carrier and imatinib mesylate (IM) as a model drug. IM loaded solid lipid nanoparticles (IMSLNs) were prepared using the hot homogenisation method. Characterisation of IMSLNs revealed that they were quasi-spherical in shape, neutrally charged and 143.5-641.9nm in size. Haemolysis, a toxicity issue of QS was not observed in SLNs. Comparative in vitro cytotoxicity analyses performed in human breast cancer cell line MCF7 revealed that IMSLNs were more toxic than IM. On the other hand, in vitro viability studies in the RAW264.7 cell line did not show any sign of toxicity by IMSLNs. Our results indicate that QS hold great potential in nano drug delivery as an emulsifier.
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35
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Mo J, Eggers PK, Yuan ZX, Raston CL, Lim LY. Paclitaxel-loaded phosphonated calixarene nanovesicles as a modular drug delivery platform. Sci Rep 2016; 6:23489. [PMID: 27009430 PMCID: PMC4806332 DOI: 10.1038/srep23489] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 03/08/2016] [Indexed: 02/06/2023] Open
Abstract
A modular p-phosphonated calix[4]arene vesicle (PCV) loaded with paclitaxel (PTX) and conjugated with folic acid as a cancer targeting ligand has been prepared using a thin film-sonication method. It has a pH-responsive capacity to trigger the release of the encapsulated PTX payload under mildly acidic conditions. PTX-loaded PCV conjugated with alkyne-modified PEG-folic acid ligands prepared via click ligation (fP-PCVPTX) has enhanced potency against folate receptor (FR)-positive SKOV-3 ovarian tumour cells over FR-negative A549 lung tumour cells. Moreover, fP-PCVPTX is also four times more potent than the non-targeting PCVPTX platform towards SKOV-3 cells. Overall, as a delivery platform the PCVs have the potential to enhance efficacy of anticancer drugs by targeting a chemotherapeutic payload specifically to tumours and triggering the release of the encapsulated drug in the vicinity of cancer cells.
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Affiliation(s)
- Jingxin Mo
- Pharmacy, School of Medicine and Pharmacology, The University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia.,Key Laboratory for Stem Cells and Tissue Engineering (Sun Yat-sen University), Ministry of Education, Guangzhou, Guangdong, 510080, China
| | - Paul K Eggers
- School of Chemistry and Biochemistry, The University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia
| | - Zhi-xiang Yuan
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Colin L Raston
- Centre for NanoScale Science and Technology, School of Chemical and Physical Sciences, Flinders University, Bedford Park, SA, 5042, Australia
| | - Lee Yong Lim
- Pharmacy, School of Medicine and Pharmacology, The University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia
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Hyaluronic acid-coated liposomes for targeted delivery of paclitaxel, in-vitro characterization and in-vivo evaluation. J Control Release 2016; 229:10-22. [PMID: 26968799 DOI: 10.1016/j.jconrel.2016.03.012] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 03/05/2016] [Accepted: 03/07/2016] [Indexed: 12/13/2022]
Abstract
Breast cancer is the leading cause of cancer death in women. Chemotherapy is regarded as the most essential strategy in inhibiting the proliferation of tumor cells. Paclitaxel is a widely used taxane; however, the side effects of available Cremophor-based formulations and also the limitations of passive targeting uncovered an essential need to develop tumor-specific targeted nanocarriers. A hyaluronic acid targeted liposomal formulation of paclitaxel was prepared in which, hyaluronic acid was electrostatistically attracted to the surface of liposomes. Liposomes, had a particle size of 106.4±3.2nm, a weakly negative zeta potential of -9.7±0.8mV and an acceptable encapsulation efficiency of 92.1±1.7%. The release profile of liposomes in buffer showed that 95% of PTX was released during 40h. Confocal laser scanning microscopy and flow cytometry analysis showed the greater cellular internalization of coumarin-loaded liposomes compared to free coumarin. MTT assay on 4T1 and T47D cells demonstrated the stronger cytotoxic activity of liposomes in comparison to free paclitaxel. Cell cycle analysis showed that cells were mainly blocked at G2/M phases after 48h treatment with liposomes. In vivo real time imaging on 4T1 tumor-bearing mice revealed that the liposomal formulation mainly accumulated in the tumor area. Liposomes also had better antitumor efficacy against Cremophor-based formulation. In conclusion, hyaluronic acid targeted paclitaxel liposome can serve as a promising targeted formulation of paclitaxel for future cancer chemotherapy.
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37
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Alhalili Z, Figueroa D, Johnston MR, Shapter J, Sanderson B. Effect of Modification Protocols on the Effectiveness of Gold Nanoparticles as Drug Delivery Vehicles for Killing of Breast Cancer Cells. Aust J Chem 2016. [DOI: 10.1071/ch16430] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The current study evaluated the potential of gold nanoparticles (AuNPs) for the delivery of Taxol to breast cancer cells (T47D) using an in vitro cell culture model. For this study, new loading approaches and novel chemical attachments were investigated. Five different gold nanoparticle-based complexes were used to determine their cytotoxicity towards T47D cells using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) viability assay. There was no significant decrease (P > 0.05) in cell viability when T47D cells were treated with AuNPs that did not contain Taxol. However, cells were significantly killed by gold nanoparticles chemically conjugated to Taxol using three different approaches and one novel hybrid AuNP-Taxol nanoparticle, wherein no chemical bonds were involved. These Taxol-loaded AuNPs were more effective at inducing cell death in vitro than a solution of free Taxol used to treat cells. This result demonstrated that Taxol could be released from the particles in the cell culture media for subsequent therapeutic action. Additionally, the experiments proved that the Taxol-loaded AuNPs were more toxic in a dose dependent manner than Taxol as a formulation for the treatment of breast cancer cells. The results of this study suggest that gold nanoparticles have potential for the efficient delivery of Taxol to breast cancer cells. This could provide a future solution as an alternative application method to overcome adverse side effects resulting from current high-dose treatment regimes.
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38
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Wei C, Zhang Y, Xu H, Xu Y, Xu Y, Lang M. Well-defined labile diselenide-centered poly(ε-caprolactone)-based micelles for activated intracellular drug release. J Mater Chem B 2016; 4:5059-5067. [DOI: 10.1039/c6tb01040g] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diselenide groups were introduced into aliphatic polyesters to develop a novel well-defined reduction-labile biodegradable diselenide-containing polymeric drug delivery system (mPEG–PCL–Se)2.
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Affiliation(s)
- Chao Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials and Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Yan Zhang
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials and Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Heng Xu
- Collaborative Innovation Center for Petrochemical New Materials
- Anqing
- China
| | - Ying Xu
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials and Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Yue Xu
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials and Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Meidong Lang
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials and Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
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39
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Hao Y, Huang Y, He Y, Peng J, Chen L, Hu X, Qian Z. The evaluation of cellular uptake efficiency and tumor-targeting ability of MPEG–PDLLA micelles: effect of particle size. RSC Adv 2016. [DOI: 10.1039/c5ra26563k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The study reported herein describes the cellular uptake efficiency and tumor-targeting ability of MPEG–PDLLA micelles with two different particle sizes.
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Affiliation(s)
- Ying Hao
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University
- Collaborative Innovation Center for Biotherapy
- Chengdu
| | - YiXing Huang
- Department of Orthopaedic Surgery
- Second Affiliated Hospital of Wenzhou Medical University
- Wenzhou Medical University
- Wenzhou
- China
| | - YunQi He
- College of Chemistry
- Sichuan University
- Chengdu
- PR China
| | - JinRong Peng
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University
- Collaborative Innovation Center for Biotherapy
- Chengdu
| | - LiJuan Chen
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University
- Collaborative Innovation Center for Biotherapy
- Chengdu
| | - Xun Hu
- Biobank of West China Hospital
- Sichuan University
- Chengdu
- PR China
| | - ZhiYong Qian
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University
- Collaborative Innovation Center for Biotherapy
- Chengdu
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40
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Cheng X, Qiu N, Yang J, Liu H, Wen J, Wang W, Wang Z, Chen L. Preparation, Characterization, and In Vivo Study of 7-Ethyl-14-Aminocamptothecin-Loaded Poly(Ethylene Glycol)2000-Poly(Lactic Acid)2000 Polymeric Micelles Against H460 Human Nonsmall Cell Lung Carcinoma. J Pharm Sci 2015; 104:3934-3942. [DOI: 10.1002/jps.24613] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 07/23/2015] [Accepted: 07/24/2015] [Indexed: 12/23/2022]
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41
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Jin S, Wan J, Meng L, Huang X, Guo J, Liu L, Wang C. Biodegradation and Toxicity of Protease/Redox/pH Stimuli-Responsive PEGlated PMAA Nanohydrogels for Targeting Drug delivery. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19843-19852. [PMID: 26288386 DOI: 10.1021/acsami.5b05984] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The application of nanomaterials in intelligent drug delivery is developing rapidly for treatment of cancers. In this paper, we fabricated a new kind of protease/redox/pH stimuli-responsive biodegradable nanohydrogels with methacrylic acid (MAA) as the monomer and N,N-bis(acryloyl)cystamine (BACy) as the cross-linker through a facile reflux-precipitation polymerization. After that, the polyethylene glycol (PEG) and folic acid (FA) were covalently grafted onto the surface of the nanohydrogels for enhancement of their long in vivo circulation lifetime and active targeting ability to the tumor cells and tissues. This kind of nanohydrogels could be disassembled into short polymer chains (Mn<1140; PDI<1.35) both in response to glutathione (GSH) through reduction of the sensitive disulfide bonds and protease by breakage of the amido bonds in the cross-linked networks. The nanohydrogels were utilized to simultaneously load both hydrophilic drug doxorubicin (DOX) and hydrophobic drug paclitaxel (PTX) with high drug loading efficiency. The cumulative release profile showed that the drug release from the drug-loaded nanohydrogels was significantly expedited by weak acidic (pH 5.0) and reducing environment (GSH), which exhibited an distinct redox/pH dual stimuli-responsive drug release to reduce the leakage of drugs before they reach tumor site. In addition, the in vitro experiment results indicated that the multidrug-loaded system had synergistic effect on cancer therapy. Meanwhile, the acute toxicity and intravital fluorescence imaging studies were adopted to evaluate the biocompatibility and biotoxicity of the nanohydrogels, the experimental results showed that the PEG modification could greatly enhance the long in vivo circulation lifetime and reduce the acute toxicity (LD50: from 138.4 mg/kg to 499.7 mg/kg) of the nanohydrogels.
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Affiliation(s)
- Sha Jin
- State Key Laboratory of Molecular Engineering of Polymers, and Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, China
| | - Jiaxun Wan
- State Key Laboratory of Molecular Engineering of Polymers, and Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, China
| | - Lizheng Meng
- Shanghai Institute of Phamaceutical Industry , Shanghai 200000, China
| | - Xiaoxing Huang
- Shanghai Institute of Phamaceutical Industry , Shanghai 200000, China
| | - Jia Guo
- State Key Laboratory of Molecular Engineering of Polymers, and Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, China
| | - Li Liu
- Shanghai Institute of Phamaceutical Industry , Shanghai 200000, China
| | - Changchun Wang
- State Key Laboratory of Molecular Engineering of Polymers, and Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University , Shanghai 200433, China
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42
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Chen L, Tan L, Zhang X, Li J, Qian Z, Xiang M, Wei Y. Which polymer is more suitable for etoposide: A comparison between two kinds of drug loaded polymeric micelles in vitro and in vivo? Int J Pharm 2015; 495:265-275. [PMID: 26325322 DOI: 10.1016/j.ijpharm.2015.08.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 08/02/2015] [Accepted: 08/16/2015] [Indexed: 02/05/2023]
Abstract
In this paper, we systemly compared the two kinds of VP16 (etoposide) loaded polymers micelles, monomethyl poly (ethylene glycol)-poly (lactic acid) (MPEG-PDLLA) and monomethyl poly (ethylene glycol)-poly (ϵ-caprolactone) (MPEG-PCL) in vitro and in vivo. Molecular modeling study was used as a novel means to compare the two formulations. In vitro, the micelle samples were fully characterized by TEM, XRD, drug loading (DL), Encapsulation efficiency (EE), stability and MTT. The stability study revealed that MPEG-PDLLA-VP16 had the significant advantage of 100% drug retention within 48 h compared to MPEG-PCL-VP16 with 40%, conform to the computer simulation model results. Cellular uptake figured that MPEG-PDLLA-VP16 had a 7 times larger uptake rate in the H460 cell line. In vivo, pharmacodynamics results showed MPEG-PDLLA-VP16 perform no significant difference with VP16 clinical formulations (10, 20mg/kg). However, MPEG-PCL-VP16 had no difference between different dosages on anticancer activities. Plasma pharmacokinetics results showed that the two micelle formulations prolong the half-life of VP16 twice than that of VP16 clinical formulations. In conclusion, micelle were better choice for cancer treatment on reducing drug toxic. In this study, the results also indicated that MPEG-PDLLA was more suitable for VP16 than MPEG-PCL as a more promising formulation for clinical cancer treatment.
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Affiliation(s)
- Lijuan Chen
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Liwei Tan
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Xiaoning Zhang
- School of Medicine, Tsinghua University, Beijing 100084, PR China
| | - Jun Li
- School of Medicine, Tsinghua University, Beijing 100084, PR China
| | - Zhiyong Qian
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China.
| | - Mingli Xiang
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China.
| | - Yuquan Wei
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
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43
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Zhang Y, Zhao Q, Zhu W, Zhang L, Han J, Lin Q, Ai F. Synthesis and evaluation of mesoporous carbon/lipid bilayer nanocomposites for improved oral delivery of the poorly water-soluble drug, nimodipine. Pharm Res 2015; 32:2372-83. [PMID: 25609013 DOI: 10.1007/s11095-015-1630-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 01/14/2015] [Indexed: 11/25/2022]
Abstract
PURPOSE A novel mesoporous carbon/lipid bilayer nanocomposite (MCLN) with a core-shell structure was synthesized and characterized as an oral drug delivery system for poorly water-soluble drugs. The objective of this study was to investigate the potential of MCLN-based formulation to modulate the in vitro release and in vivo absorption of a model drug, nimodipine (NIM). METHODS NIM-loaded MCLN was prepared by a procedure involving a combination of thin-film hydration and lyophilization. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), specific surface area analysis, differential scanning calorimetry (DSC) and X-ray diffraction (XRD) were employed to characterize the NIM-loaded MCLN formulation. The effect of MCLN on cell viability was assessed using the MTT assay. In addition, the oral bioavailability of NIM-loaded MCLN in beagle dogs was compared with that of the immediate-release formulation, Nimotop®. RESULTS Our results demonstrate that the NIM-loaded MCLN formulation exhibited a typical sustained release pattern. The NIM-loaded MCLN formulation achieved a greater degree of absorption and longer lasting plasma drug levels compared with the commercial formulation. The relative bioavailability of NIM for NIM-loaded MCLN was 214%. MCLN exhibited negligible toxicity. CONCLUSION The data reported herein suggest that the MCLN matrix is a promising carrier for controlling the drug release rate and improving the oral absorption of poorly water-soluble drugs.
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Affiliation(s)
- Yanzhuo Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical College, P.O. Box 62, No. 209, Tongshan Road, Xuzhou, 221004, China,
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44
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Wu Z, Zou X, Yang L, Lin S, Fan J, Yang B, Sun X, Wan Q, Chen Y, Fu S. Thermosensitive hydrogel used in dual drug delivery system with paclitaxel-loaded micelles for in situ treatment of lung cancer. Colloids Surf B Biointerfaces 2014; 122:90-98. [DOI: 10.1016/j.colsurfb.2014.06.052] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Revised: 06/21/2014] [Accepted: 06/24/2014] [Indexed: 10/25/2022]
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45
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Jeetah R, Bhaw-Luximon A, Jhurry D. Polymeric nanomicelles for sustained delivery of anti-cancer drugs. Mutat Res 2014; 768:47-59. [PMID: 24768976 DOI: 10.1016/j.mrfmmm.2014.04.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 04/08/2014] [Accepted: 04/10/2014] [Indexed: 06/03/2023]
Abstract
In the first section of this paper, the existing and emerging nanotechnology-based cancer therapies--nanoparticles, drug conjugates, nanomicelles--are reviewed. In a second part, we present our original and unpublished findings on the sustained release of anti-cancer drugs such as paclitaxel, doxorubicin and camptothecin using block copolymer micelles [PEG-b-poly(dioxanone-co-methyl dioxanone)]. Copolymers with variable lengths of hydrophobic and hydrophilic blocks have been synthesized and successfully loaded with paclitaxel, doxorubicin and camptothecin anti-cancer drugs, with micelles size in the range 130-300 nm. Drug encapsulation efficiencies varied between 15% and 70% depending on drug and copolymer composition. The drug binding constants, which give a good insight into drug encapsulation and release, were evaluated from UV spectroscopy as we reported previously for anti-TB drugs. Through variation of the methyl dioxanone content of the copolymer, our systems can be tailored for sustained release of the different drugs.
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Affiliation(s)
- Roubeena Jeetah
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, University of Mauritius, MSIRI Building, Réduit, Mauritius
| | - Archana Bhaw-Luximon
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, University of Mauritius, MSIRI Building, Réduit, Mauritius
| | - Dhanjay Jhurry
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, University of Mauritius, MSIRI Building, Réduit, Mauritius.
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Kang Y, Ha W, Liu YQ, Ma Y, Fan MM, Ding LS, Zhang S, Li BJ. pH-responsive polymer-drug conjugates as multifunctional micelles for cancer-drug delivery. NANOTECHNOLOGY 2014; 25:335101. [PMID: 25073730 DOI: 10.1088/0957-4484/25/33/335101] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We developed a novel linear pH-sensitive conjugate methoxy poly(ethylene glycol)-4β-aminopodophyllotoxin (mPEG-NPOD-I) by a covalently linked 4β-aminopodophyllotoxin (NPOD) and PEG via imine bond, which was amphiphilic and self-assembled to micelles in an aqueous solution. The mPEG-NPOD-I micelles simultaneously served as an anticancer drug conjugate and as drug carriers. As a drug conjugate, mPEG-NPOD-I showed a significantly faster NPOD release at a mildly acidic pH of 5.0 and 4.0 than a physiological pH of 7.4. Notably, it was confirmed that this drug conjugate could efficiently deliver NPOD to the nuclei of the tumor cells and led to much more cytotoxic effects to A549, Hela, and HepG2 cancer cells than the parent NPOD. The half maximal inhibitory concentration (IC₅₀) of mPEG-NPOD-I was about one order magnitude lower than that of the NPOD. In vivo, mPEG-NPOD-I reduced the size of the tumors significantly, and the biodistribution studies indicated that this drug conjugate could selectively accumulate in tumor tissues. As drug carriers, the mPEG-NPOD-I micelles encapsulated hydrophobic PTX with drug-loading efficiencies of 57% and drug-loading content of 16%. The loaded PTX also showed pH-triggered fast release behavior, and good additive cytotoxicity effect was observed for the PEG-NPOD-I/PTX. We are convinced that these multifunctional drug conjugate micelles have tremendous potential for targeted cancer therapy.
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Affiliation(s)
- Yang Kang
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, People's Republic of China
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Iatrou H, Dimas K, Gkikas M, Tsimblouli C, Sofianopoulou S. Polymersomes from polypeptide containing triblock Co- and terpolymers for drug delivery against pancreatic cancer: asymmetry of the external hydrophilic blocks. Macromol Biosci 2014; 14:1222-38. [PMID: 24838730 DOI: 10.1002/mabi.201400137] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 04/13/2014] [Indexed: 11/09/2022]
Abstract
Well-defined amphiphilic polymers of the ABA and ABC type are synthesized, where A is poly(L-lysine hydrochloride) (PLL), B is poly(γ-benzyl-(d7) L-glutamate) (PBLG(-d7)), and C is poly(ethylene oxide) (PEO). The two polymers exhibit similar PBLG(-d7) composition, while in the ABC, the volume fraction of PEO block is higher than that of PLL. Both polymers form polymersomes in water. The polymersomes are loaded with doxorubicin or paclitaxel. It is found that in the ABC, due to asymmetry of the two hydrophilic blocks, PEO is always on the outer periphery and the dimensions of the vesicles are smaller. The release of the vesicles is temperature- and pH-dependent. In vivo toxicity tests of the empty vesicles show that they are not toxic. In vitro activity of the loaded vesicles against human pancreatic cancer cell lines reveals comparable activity to Myocet for the ABA loaded with doxorubicin, while lower activity is observed for the ABC.
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Affiliation(s)
- Hermis Iatrou
- University of Athens, Chemistry Department, Panepistimiopolis, Zografou, 15771, Athens, Greece
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PEG-PCL based micelle hydrogels as oral docetaxel delivery systems for breast cancer therapy. Biomaterials 2014; 35:6972-85. [PMID: 24836952 DOI: 10.1016/j.biomaterials.2014.04.099] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 04/24/2014] [Indexed: 02/05/2023]
Abstract
In this study, a composite drug delivery system was developed and evaluated for oral delivery of docetaxel: docetaxel-loaded micelles in pH-responsive hydrogel (DTX-micelle-hydrogel). Docetaxel was successfully loaded in micelles with small particle size of 20 nm and high drug loading of 7.76%, which contributed to the drug absorption in the intestinal tract. The experiments of cytotoxicity on 4T1 cells demonstrated the effective antitumor activity of DTX micelles. Meanwhile, a pH-responsive hydrogel was synthesized and optimized for incorporating the docetaxel micelles. The pH-responsiveness and reversibility of the hydrogel were investigated under the pH conditions of the gastrointestinal tract. Furthermore, the DTX-micelle-hydrogel system showed much quicker diffusion of micelles in simulated intestinal fluid than in simulated gastric fluid, which was mainly caused by the change of pH value. The docetaxel released from the micelle-hydrogel system quite slowly, so it had little influence on the absorption of DTX micelles in small intestine. More important, the pharmacokinetic study revealed that the DTX-micelle-hydrogel significantly improved the oral bioavailability of docetaxel (75.6%) about 10 times compared to DTX micelles, and this increase in bioavailability was probably due to the small intestine targeting release of the pH-responsive hydrogel. Consequently, the oral DTX-micelle-hydrogel system was effective in inhibiting tumor growth in subcutaneous 4T1 breast cancer model, and decreased systemic toxicity compared with intravenous treatment. The apoptosis cells in the immunofluorescent studies and the proliferation-positive cells in the immunohistochemical studies were also consistent with the results. Therefore, the DTX-micelle-hydrogel system might be a promising candidate oral drug for breast cancer therapy.
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Targeted poly (L-γ-glutamyl glutamine) nanoparticles of docetaxel against folate over-expressed breast cancer cells. Int J Pharm 2014; 467:123-38. [PMID: 24680951 DOI: 10.1016/j.ijpharm.2014.03.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 03/15/2014] [Accepted: 03/18/2014] [Indexed: 01/23/2023]
Abstract
A novel folate (FA) conjugated poly(l-γ-glutamyl glutamine) (PGG) nanoparticle loaded with docetaxel (DTX) was prepared to take advantage of both targeted drug delivery in breast cancer and reducing the overall side effects due to the adjuvant free formulation in comparison with Taxotere(®). Nanoprecipitation method was employed to prepare nanoparticles (NPs). The chemical structure of PGG synthesized polymers and PGG-FA conjugates and polymeric nanoparticles were characterized by H NMR, FTIR spectroscopy, field emission scanning electron microscopy, and laser scanning confocal microscopy. The average size of optimized nanoparticles with the aid of Box-Behnken experimental design was 131.96 ± 5.34(nm) with polydispersity of 0.089 ± 0.019, zeta potential of -25.8 ± 2.21(mV), and entrapment efficiency of 67.83 ± 3.29(%). In vitro cytotoxicity of the designed NPs was investigated by MTT assay against three chosen cell lines of MCF7, 4T1, and A549 based on their folate receptor expression capacity and was compared with Taxotere(®). Moreover, PGG-FOL NPs were loaded with 6-coumarin for cellular uptake investigation. In order to assess the antitumor efficacy and biodistribution of targeted NPs, 4T1 murine breast tumors were established on the balb/c mice and in vivo studies were performed. The obtained results showed that the novel designed system was highly effective against tumor cells and successfully localized in the tumor site.
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