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Development of surface conjugated block co polymeric micelles as targeted therapeutics: characterization and in-vitro cell viability. JOURNAL OF POLYMER RESEARCH 2023. [DOI: 10.1007/s10965-022-03362-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Xie S, Gong YC, Xiong XY, Li ZL, Luo YY, Li YP. Targeted folate-conjugated pluronic P85/poly(lactide-co-glycolide) polymersome for the oral delivery of insulin. Nanomedicine (Lond) 2018; 13:2527-2544. [DOI: 10.2217/nnm-2017-0372] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Aim: To explore the better efficacy of targeted folic acid (FA)-Pluronic 85-poly(lactide-co-glycolide) (FA–P85–PLGA) polymersome in oral insulin delivery. Materials & methods: The cytotoxicity of the polymers, in vitro qualitative and quantitative cellular uptake and the internalization mechanism of insulin-loaded FA–P85–PLGA and PLGA–P85–PLGA polymersomes were studied with the human colon adenocarcinoma cells (Caco-2 cells). Their pharmacodynamics and pharmacokinetics properties were also studied with diabetic rats. Results & conclusion: Polymersomes have shown good biocompatibility. Polymersomes are mainly localized within the cytoplasm of Caco-2 cells from fluorescence microscopy images. FA–P85–PLGA exhibited higher cellular uptake than PLGA–P85–PLGA polymersomes and free fluorescein isothiocyanate-labeled insulin (FITC–insulin) did. The uptake process of targeted polymersomes included clathrin- and caveolae-mediated endocytosis, macropinocytosis and the folate receptor-mediated endocytosis. Insulin-loaded FA–P85–PLGA showed better hypoglycemic effects than insulin-loaded PLGA–P85–PLGA.
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Affiliation(s)
- Shuang Xie
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, PR China
| | - Yan C Gong
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, PR China
| | - Xiang Y Xiong
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, PR China
| | - Zi L Li
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, PR China
| | - Yue Y Luo
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, PR China
| | - Yu P Li
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, PR China
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Jiang D, Gao X, Kang T, Feng X, Yao J, Yang M, Jing Y, Zhu Q, Feng J, Chen J. Actively targeting D-α-tocopheryl polyethylene glycol 1000 succinate-poly(lactic acid) nanoparticles as vesicles for chemo-photodynamic combination therapy of doxorubicin-resistant breast cancer. NANOSCALE 2016; 8:3100-3118. [PMID: 26785758 DOI: 10.1039/c5nr07724a] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Drug resistance is the major reason for therapeutic failure during cancer treatment. Chemo-photodynamic combination therapy has potential to improve the treatment efficiency in drug-resistant cancers, but is limited by the incompatible physical properties of the photosensitizer with a chemo-drug and poor accumulation of both drugs into the inner areas of the tumor. Herein, a novel drug delivery system was designed by incorporating the photosensitizer, chlorine 6, chemically in the shell and the chemo-drug, doxorubicin, physically in the core of D-α-tocopheryl polyethylene glycol 1000 succinate-poly(lactic acid) (TPGS-PLA) nanoparticles with a targeting ligand, tLyp-1 peptide, decorated over the surface (tLyp-1-NP). This nanoparticle with a high drug loading capacity of both the photosensitizer and chemo-drug is expected to realize chemo-photodynamic combination therapy of drug-resistant cancer and simultaneously achieve the specific deep penetration and accumulation of drugs into the inner areas of tumor. tLyp-1-NP was prepared via a nanoprecipitation method and it exhibited a uniformly spherical morphology with a size of approximately 130 nm. After appropriate irradiation, tLyp-1-NP showed high cellular uptake and strong cytotoxicity in both human umbilical vein endothelial cells (HUVEC cells) and doxorubicin-resistant human breast adenocarcinoma cells (MCF-7/ADR cells) in vitro. After intravenous administration, compared with the unmodified NPs, tLyp-1-NP was found to have superior tumor targeting ability and more potent reversion of doxorubicin-resistant cancer. The terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling and the hematoxylin and eosin staining of the treated tumors further demonstrated the anti-tumor efficacy of tLyp-1-NP in the presence of a laser. These observations collectively suggest the potential of tLyp-1-NP for the actively targeting chemo-photodynamic combination therapy of drug-resistant cancer.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/metabolism
- Animals
- Antibiotics, Antineoplastic/chemistry
- Antibiotics, Antineoplastic/pharmacology
- Antibiotics, Antineoplastic/therapeutic use
- Apoptosis/drug effects
- Breast Neoplasms/drug therapy
- Breast Neoplasms/pathology
- Doxorubicin/chemistry
- Doxorubicin/therapeutic use
- Doxorubicin/toxicity
- Drug Carriers/chemistry
- Drug Liberation
- Drug Resistance, Neoplasm/drug effects
- Female
- Human Umbilical Vein Endothelial Cells
- Humans
- MCF-7 Cells
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Micelles
- Nanoparticles/chemistry
- Nanoparticles/ultrastructure
- Particle Size
- Peptides, Cyclic/chemistry
- Peptides, Cyclic/metabolism
- Photochemotherapy
- Photosensitizing Agents/chemistry
- Photosensitizing Agents/pharmacology
- Photosensitizing Agents/therapeutic use
- Polyethylene Glycols/chemistry
- Porphyrins/chemistry
- Reactive Oxygen Species/metabolism
- Succinates/chemistry
- Transplantation, Heterologous
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Affiliation(s)
- Di Jiang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Lane 826, Zhangheng Road, Shanghai 201203, PR China.
| | - Xiaoling Gao
- Department of Pharmacology, Institute of Medical Sciences, Shanghai Jiaotong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, PR China
| | - Ting Kang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Lane 826, Zhangheng Road, Shanghai 201203, PR China.
| | - Xingye Feng
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Lane 826, Zhangheng Road, Shanghai 201203, PR China.
| | - Jianhui Yao
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Lane 826, Zhangheng Road, Shanghai 201203, PR China.
| | - Mengshi Yang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Lane 826, Zhangheng Road, Shanghai 201203, PR China.
| | - Yixian Jing
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Lane 826, Zhangheng Road, Shanghai 201203, PR China.
| | - Qianqian Zhu
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Lane 826, Zhangheng Road, Shanghai 201203, PR China.
| | - Jingxian Feng
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Lane 826, Zhangheng Road, Shanghai 201203, PR China.
| | - Jun Chen
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Lane 826, Zhangheng Road, Shanghai 201203, PR China.
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