101
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Popp L, Segatori L. Differential autophagic responses to nano-sized materials. Curr Opin Biotechnol 2015; 36:129-36. [DOI: 10.1016/j.copbio.2015.08.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 08/07/2015] [Accepted: 08/14/2015] [Indexed: 12/17/2022]
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102
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Wu B, Liang Y, Tan Y, Xie C, Shen J, Zhang M, Liu X, Yang L, Zhang F, Liu L, Cai S, Huai D, Zheng D, Zhang R, Zhang C, Chen K, Tang X, Sui X. Genistein-loaded nanoparticles of star-shaped diblock copolymer mannitol-core PLGA-TPGS for the treatment of liver cancer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 59:792-800. [PMID: 26652434 DOI: 10.1016/j.msec.2015.10.087] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 09/05/2015] [Accepted: 10/14/2015] [Indexed: 01/18/2023]
Abstract
The purpose of this research is to develop nanoparticles (NPs) of star-shaped copolymer mannitol-functionalized PLGA-TPGS for Genistein delivery for liver cancer treatment, and evaluate their therapeutic effects in liver cancer cell line and hepatoma-tumor-bearing nude mice in comparison with the linear PLGA nanoparticles and PLGA-TPGS nanoparticles. The Genistein-loaded M-PLGA-TPGS nanoparticles (MPTN), prepared by a modified nanoprecipitation method, were observed by FESEM and TEM to be near-spherical shape with narrow size distribution. The nanoparticles were further characterized in terms of their size, size distribution, surface charge, drug-loading content, encapsulation efficiency and in vitro drug release profiles. The data showed that the M-PLGA-TPGS nanoparticles were found to be stable, showing almost no change in particle size and surface charge during 3-month storage of their aqueous solution. In vitro Genistein release from the nanoparticles exhibited biphasic pattern with burst release at the initial 4days and sustained release afterwards. The cellular uptake efficiency of fluorescent M-PLGA-TPGS nanoparticles was 1.25-, 1.22-, and 1.29-fold higher than that of the PLGA-TPGS nanoparticles at the nanoparticle concentrations of 100, 250, and 500μg/mL, respectively. In the MPTN group, the ratio of apoptotic cells increased with the drug dose increased, which exhibited dose-dependent effect and a significant difference compared with Genistein solution group (p<0.05). The data also showed that the Genistein-loaded M-PLGA-TPGS nanoparticles have higher antitumor efficacy than that of linear PLGA-TPGS nanoparticles and PLGA nanoparticles in vitro and in vivo. In conclusion, the star-shaped copolymer M-PLGA-TPGS could be used as a potential and promising bioactive material for nanomedicine development for liver cancer treatment.
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Affiliation(s)
- Binquan Wu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - Yong Liang
- Clinical Laboratory, The Affiliated Huai'an Hospital of Xuzhou Medical College, Huai'an, 223002, China
| | - Yi Tan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - Chunmei Xie
- School of Biotechnology, Southern Medical University, Guangzhou 510515, China
| | - Jin Shen
- Huainan Laboratory of Clinical Genetics, Huainan First People's Hospital & First Affiliated Hospital, Medical College, Anhui University of Science & Technology, Huainan 232007, China; Stem Cell Engineering Research Center, Anhui University of Science & Technology, Huainan 232001, China
| | - Mei Zhang
- Huainan Laboratory of Clinical Genetics, Huainan First People's Hospital & First Affiliated Hospital, Medical College, Anhui University of Science & Technology, Huainan 232007, China
| | - Xinkuang Liu
- Huainan Laboratory of Clinical Genetics, Huainan First People's Hospital & First Affiliated Hospital, Medical College, Anhui University of Science & Technology, Huainan 232007, China
| | - Lixin Yang
- Huainan Laboratory of Clinical Genetics, Huainan First People's Hospital & First Affiliated Hospital, Medical College, Anhui University of Science & Technology, Huainan 232007, China
| | - Fujian Zhang
- Stem Cell Engineering Research Center, Anhui University of Science & Technology, Huainan 232001, China
| | - Liang Liu
- Stem Cell Engineering Research Center, Anhui University of Science & Technology, Huainan 232001, China
| | - Shuyu Cai
- Stem Cell Engineering Research Center, Anhui University of Science & Technology, Huainan 232001, China
| | - De Huai
- Clinical Laboratory, The Affiliated Huai'an Hospital of Xuzhou Medical College, Huai'an, 223002, China
| | - Donghui Zheng
- Clinical Laboratory, The Affiliated Huai'an Hospital of Xuzhou Medical College, Huai'an, 223002, China
| | - Rongbo Zhang
- Huainan Laboratory of Clinical Genetics, Huainan First People's Hospital & First Affiliated Hospital, Medical College, Anhui University of Science & Technology, Huainan 232007, China
| | - Chao Zhang
- Huainan Laboratory of Clinical Genetics, Huainan First People's Hospital & First Affiliated Hospital, Medical College, Anhui University of Science & Technology, Huainan 232007, China
| | - Ke Chen
- Clinical Laboratory, The Affiliated Huai'an Hospital of Xuzhou Medical College, Huai'an, 223002, China
| | - Xiaolong Tang
- Huainan Laboratory of Clinical Genetics, Huainan First People's Hospital & First Affiliated Hospital, Medical College, Anhui University of Science & Technology, Huainan 232007, China; Stem Cell Engineering Research Center, Anhui University of Science & Technology, Huainan 232001, China.
| | - Xuemei Sui
- Clinical Laboratory, Huai'an First People's Hospital, Nanjing Medical University, Huaian 223003, China.
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103
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Ruan Y, Hu K, Chen H. Autophagy inhibition enhances isorhamnetin‑induced mitochondria‑dependent apoptosis in non‑small cell lung cancer cells. Mol Med Rep 2015; 12:5796-806. [PMID: 26238746 PMCID: PMC4581743 DOI: 10.3892/mmr.2015.4148] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 06/22/2015] [Indexed: 12/26/2022] Open
Abstract
Isorhamnetin (ISO) is a flavonoid from plants of the Polygonaceae family and is also an immediate metabolite of quercetin in mammals. To date, the anti-tumor effects of ISO and the underlying mechanisms have not been elucidated in lung cancer cells. The present study investigated the inhibitory effects of ISO on the growth of human lung cancer A549 cells. Treatment of the lung cancer cells with ISO significantly suppressed cell proliferation and colony formation. ISO treatment also resulted in a significant increase in apoptotic cell death of A549 cells in a time- and dose-dependent manner. Further investigation showed that the apoptosis proceeded via the mitochondria-dependent pathway as indicated by alteration of the mitochondrial membrane potential, the release of cytochrome C and caspase activation. Of note, treatment with ISO also induced the formation of autophagosomes and light chain 3-II protein in A549 cells. Furthermore, co-treatment with autophagy inhibitors 3-methyladenine and hydroxychloroquine significantly inhibited the ISO-induced autophagy and enhanced the ISO-induced apoptotic cell death in vitro as well as in vivo. Thus, the results of the present study suggested that ISO is a potential anti-lung cancer agent. In addition, the results indicated that the inhibition of autophagy may be a useful strategy for enhancing the chemotherapeutic effect of ISO on lung cancer cells.
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Affiliation(s)
- Yushu Ruan
- Division of Respiratory Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Ke Hu
- Division of Respiratory Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Hongbo Chen
- The Shenzhen Key Lab of Gene and Antibody Therapy, Division of Life and Health Sciences, Shenzhen Graduate School of Tsinghua University, Shenzhen, Guangdong 518055, P.R. China
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104
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Guo L, Zhang H, Wang F, Liu P, Wang Y, Xia G, Liu R, Li X, Yin H, Jiang H, Chen B. Targeted multidrug-resistance reversal in tumor based on PEG-PLL-PLGA polymer nano drug delivery system. Int J Nanomedicine 2015. [PMID: 26213467 PMCID: PMC4509529 DOI: 10.2147/ijn.s85587] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The study investigated the reversal of multidrug resistance (MDR) and the biodistribution of nanoparticles (NPs) that target leukemia cells in a nude mice model via a surface-bound transferrin (Tf). The cytotoxic cargo of daunorubicin (DNR) and tetrandrine (Tet) was protected in the NPs by an outer coat composed of polyethylene glycol (PEG)-poly-l-lysine (PLL)-poly(lactic-co-glycolic acid) (PLGA) NPs. Injection of DNR-Tet-Tf-PEG-PLL-PLGA NPs into nude mice bearing MDR leukemia cell K562/A02 xenografts was shown to inhibit tumor growth, and contemporaneous immunohistochemical analysis of tumor tissue showed the targeted NPs induced apoptosis in tumor cells. Targeted tumor cells exhibited a marked increase in Tf receptor expression, with noticeable decreases in P-glycoprotein, MDR protein, and nuclear factor κB, as assessed by quantitative real-time polymerase chain reaction and Western blot analysis. Moreover, the concentration of DNR was shown to increase in plasma, tumor tissue, and major organs. Flow cytometry analysis with a near-infrared fluorescent (NIRF) dye, NIR797, was used to study the effectiveness of Tf as a targeting group for leukemia cells, a finding that was supported by NIRF imaging in tumor-bearing nude mice. In summary, our studies show that DNR-Tet-Tf-PEG-PLL-PLGA NPs provide a specific and effective means to target cytotoxic drugs to MDR tumor cells.
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Affiliation(s)
- Liting Guo
- Department of Hematology and Oncology (Key Department of Jiangsu Medicine), The Affiliated Zhongda Hospital, Medical School of Southeast University, Nanjing, People's Republic of China
| | - Haijun Zhang
- Department of Hematology and Oncology (Key Department of Jiangsu Medicine), The Affiliated Zhongda Hospital, Medical School of Southeast University, Nanjing, People's Republic of China
| | - Fei Wang
- Department of Hematology and Oncology (Key Department of Jiangsu Medicine), The Affiliated Zhongda Hospital, Medical School of Southeast University, Nanjing, People's Republic of China
| | - Ping Liu
- Department of Hematology and Oncology (Key Department of Jiangsu Medicine), The Affiliated Zhongda Hospital, Medical School of Southeast University, Nanjing, People's Republic of China
| | - Yonglu Wang
- Department of Hematology and Oncology (Key Department of Jiangsu Medicine), The Affiliated Zhongda Hospital, Medical School of Southeast University, Nanjing, People's Republic of China ; School of Pharmacy, Nanjing University of Technology, Nanjing, People's Republic of China
| | - Guohua Xia
- Department of Hematology and Oncology (Key Department of Jiangsu Medicine), The Affiliated Zhongda Hospital, Medical School of Southeast University, Nanjing, People's Republic of China
| | - Ran Liu
- Department of Hematology and Oncology (Key Department of Jiangsu Medicine), The Affiliated Zhongda Hospital, Medical School of Southeast University, Nanjing, People's Republic of China
| | - Xueming Li
- School of Pharmacy, Nanjing University of Technology, Nanjing, People's Republic of China
| | - Haixiang Yin
- School of Pharmacy, Nanjing University of Technology, Nanjing, People's Republic of China
| | - Hulin Jiang
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Baoan Chen
- Department of Hematology and Oncology (Key Department of Jiangsu Medicine), The Affiliated Zhongda Hospital, Medical School of Southeast University, Nanjing, People's Republic of China
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105
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106
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A novel topical nano-propranolol for treatment of infantile hemangiomas. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:1109-15. [DOI: 10.1016/j.nano.2015.02.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 01/27/2015] [Accepted: 02/17/2015] [Indexed: 01/08/2023]
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107
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Muthu MS, Mei L, Feng SS. Nanotheranostics: advanced nanomedicine for the integration of diagnosis and therapy. Nanomedicine (Lond) 2015; 9:1277-80. [PMID: 25204816 DOI: 10.2217/nnm.14.83] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Madaswamy S Muthu
- Department of Pharmacology, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, India
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108
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Hoang B, Ernsting MJ, Roy A, Murakami M, Undzys E, Li SD. Docetaxel-carboxymethylcellulose nanoparticles target cells via a SPARC and albumin dependent mechanism. Biomaterials 2015; 59:66-76. [PMID: 25956852 DOI: 10.1016/j.biomaterials.2015.04.032] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 04/11/2015] [Accepted: 04/14/2015] [Indexed: 01/18/2023]
Abstract
Cellax, a polymer-docetaxel (DTX) conjugate that self-assembled into 120 nm particles, displayed significant enhancements in safety and efficacy over native DTX across a number of primary and metastatic tumor models. Despite these exciting preclinical data, the underlying mechanism of delivery of Cellax remains elusive. Herein, we demonstrated that serum albumin efficiently adsorbed onto the Cellax particles with a 4-fold increased avidity compared to native DTX, and the uptake of Cellax by cells was primarily driven by an albumin and SPARC (secreted protein acidic and rich in cysteine, an albumin binder) dependent internalization mechanism. In the SPARC-positive cells, a >2-fold increase in cellular internalization of Cellax was observed in the presence of albumin. In the SPARC-negative cells, no difference in Cellax internalization was observed in the presence or absence of albumin. Evaluation of the internalization mechanism using endocytotic inhibitors revealed that Cellax was internalized predominantly via a clathrin-mediated endocytotic mechanism. Upon internalization, it was demonstrated that Cellax was entrapped within the endo-lysosomal and autophagosomal compartments. Analysis of the tumor SPARC level with tumor growth inhibition of Cellax in a panel of tumor models revealed a positive and linear correlation (R(2) > 0.9). Thus, this albumin and SPARC-dependent pathway for Cellax delivery to tumors was confirmed both in vitro and in vivo.
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Affiliation(s)
- Bryan Hoang
- Drug Delivery and Formulation, Drug Discovery Program, Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Mark J Ernsting
- Drug Delivery and Formulation, Drug Discovery Program, Ontario Institute for Cancer Research, Toronto, ON, Canada; Faculty of Engineering and Architectural Science, Ryerson University, Toronto, ON, Canada
| | - Aniruddha Roy
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Mami Murakami
- Drug Delivery and Formulation, Drug Discovery Program, Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Elijus Undzys
- Drug Delivery and Formulation, Drug Discovery Program, Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Shyh-Dar Li
- Drug Delivery and Formulation, Drug Discovery Program, Ontario Institute for Cancer Research, Toronto, ON, Canada; Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada.
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109
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Chen C, Zhao B, Deng J. Optically Active Porous Microspheres Consisting of Helical Substituted Polyacetylene Prepared by Precipitation Polymerization without Porogen and the Application in Enantioselective Crystallization. ACS Macro Lett 2015; 4:348-352. [PMID: 35596319 DOI: 10.1021/acsmacrolett.5b00088] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel chiral acetylenic monomer derived from cholic acid was synthesized and structurally characterized. The monomer underwent precipitation polymerization in tetrahydrofuran/n-heptane mixed solvent with [Rh(nbd)Cl]2 as catalyst. Without adding porogen, porous microspheres were successfully prepared in a high yield (>80 wt %). The formation mechanism of the porous structure was proposed. Circular dichroism and UV-vis absorption spectra demonstrated that the porous microspheres possessed optical activity. The optical activity was originated in the chiral helical conformations of substituted polyacetylene forming the microspheres. The porous microspheres were further used as specific chiral additive to induce enantioselective crystallization of racemic BOC-alanine, in which BOC-l-alanine was preferentially induced forming rod-like crystals with e.e. of 69%. This strongly indicates the significant potential applications of the porous microspheres in chiral technologies. The present study also provides a new approach to prepare chiral porous polymer microspheres.
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Affiliation(s)
- Chunni Chen
- State Key Laboratory of Chemical Resource Engineering and ‡College of Materials
Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Biao Zhao
- State Key Laboratory of Chemical Resource Engineering and ‡College of Materials
Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering and ‡College of Materials
Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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110
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Xiong W, Peng L, Chen H, Li Q. Surface modification of MPEG-b-PCL-based nanoparticles via oxidative self-polymerization of dopamine for malignant melanoma therapy. Int J Nanomedicine 2015; 10:2985-96. [PMID: 25945046 PMCID: PMC4406261 DOI: 10.2147/ijn.s79605] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
To enhance the therapeutic effects of chemotherapy on malignant melanoma, paclitaxel (PTX)-loaded methoxy poly(ethylene glycol)-b-poly(ε-caprolactone) nanoparticles (MPEG-b-PCL NPs) that had their surfaces modified with polydopamine (PTX-loaded MPEG-b-PCL NPs@PDA) were prepared as drug vehicles. The block copolymer MPEG-b-PCL was synthesized by ring-opening polymerization and characterized by proton nuclear magnetic resonance spectroscopy and gel permeation chromatography. The PTX-loaded NPs were prepared by a modified nanoprecipitation technique. The PTX-loaded NPs and PTX-loaded NPs@PDA were characterized in terms of size and size distribution, zeta potential, surface morphology, drug encapsulation efficiency, and drug release. Confocal laser scanning microscopy showed that coumarin-6-loaded NPs@PDA could be internalized by human melanoma cell line A875 cells. The cellular uptake efficiency of NPs was greatly enhanced after PDA modification. The antitumor efficacy of the PTX-loaded NPs@PDA was investigated in vitro by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and in vivo by a xenograft tumor model. The PTX-loaded NPs@PDA could significantly inhibit tumor growth compared to Taxol(®) and precursor PTX-loaded NPs. All the results suggested that the PTX-loaded MPEG-b-PCL NPs that had their surfaces modified with PDA are promising nanocarriers for malignant melanoma therapy.
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Affiliation(s)
- Wei Xiong
- Southern Medical University, Guangzhou, People’s Republic of China
- Department of Plastic Surgery, General Hospital of Guangzhou Military Command of PLA, Guangzhou, People’s Republic of China
| | - Lixia Peng
- Southern Medical University, Guangzhou, People’s Republic of China
- Department of Plastic Surgery, General Hospital of Guangzhou Military Command of PLA, Guangzhou, People’s Republic of China
| | - Hongbo Chen
- Division of Life Sciences and Health, Graduate School at Shenzhen, Tsinghua University, Shenzhen, People’s Republic of China
| | - Qin Li
- Southern Medical University, Guangzhou, People’s Republic of China
- Department of Plastic Surgery, General Hospital of Guangzhou Military Command of PLA, Guangzhou, People’s Republic of China
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111
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Teng L, Nie W, Zhou Y, Song L, Chen P. Synthesis and characterization of star-shaped PLLA with sorbitol as core and its microspheres application in controlled drug release. J Appl Polym Sci 2015. [DOI: 10.1002/app.42213] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Lijing Teng
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials; School of Chemistry & Chemical Engineering, Anhui University; Hefei 230601 People's Republic of China
| | - Wangyan Nie
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials; School of Chemistry & Chemical Engineering, Anhui University; Hefei 230601 People's Republic of China
| | - Yifeng Zhou
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials; School of Chemistry & Chemical Engineering, Anhui University; Hefei 230601 People's Republic of China
| | - Linyong Song
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials; School of Chemistry & Chemical Engineering, Anhui University; Hefei 230601 People's Republic of China
| | - Pengpeng Chen
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials; School of Chemistry & Chemical Engineering, Anhui University; Hefei 230601 People's Republic of China
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112
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Tang X, Liang Y, Feng X, Zhang R, Jin X, Sun L. Co-delivery of docetaxel and Poloxamer 235 by PLGA–TPGS nanoparticles for breast cancer treatment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:348-355. [DOI: 10.1016/j.msec.2015.01.033] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 12/14/2014] [Accepted: 01/06/2015] [Indexed: 12/01/2022]
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113
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Zhang J, Tao W, Chen Y, Chang D, Wang T, Zhang X, Mei L, Zeng X, Huang L. Doxorubicin-loaded star-shaped copolymer PLGA-vitamin E TPGS nanoparticles for lung cancer therapy. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:165. [PMID: 25791459 DOI: 10.1007/s10856-015-5498-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 02/15/2015] [Indexed: 05/20/2023]
Abstract
A doxorubicin-loaded mannitol-functionalized poly(lactide-co-glycolide)-b-D-α-tocopheryl polyethylene glycol 1000 succinate nanoparticles (DOX-loaded M-PLGA-b-TPGS NPs) were prepared by a modified nanoprecipitation method. The NPs were characterized by the particle size, surface morphology, particle stability, in vitro drug release and cellular uptake efficiency. The NPs were near-spherical with narrow size distribution. The size of M-PLGA-b-TPGS NPs was ~110.9 nm (much smaller than ~143.7 nm of PLGA NPs) and the zeta potential was -35.8 mV (higher than -42.6 mV of PLGA NPs). The NPs exhibited a good redispersion since the particle size and surface charge hardly changed during 3-month storage period. In the release medium (phosphate buffer solution vs. fetal bovine serum), the cumulative drug release of DOX-loaded M-PLGA-b-TPGS, PLGA-b-TPGS, and PLGA NPs were 76.41 versus 83.11 %, 58.94 versus 73.44 % and 45.14 versus 53.12 %, respectively. Compared with PLGA-b-TPGS NPs and PLGA NPs, the M-PLGA-b-TPGS NPs possessed the highest cellular uptake efficiency in A549 and H1975 cells (lung cancer cells). Ultimately, both in vitro and in vivo antitumor activities were evaluated. The results showed that M-PLGA-b-TPGS NPs could achieve a significantly higher level of cytotoxicity in cancer cells and a better antitumor efficiency on xenograft BALB/c nude mice tumor model than free DOX. In conclusion, the DOX-loaded M-PLGA-b-TPGS could be used as a potential DOX-loaded nanoformulation in lung cancer chemotherapy.
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Affiliation(s)
- Jinxie Zhang
- School of Life Sciences, Tsinghua University, Beijing, 100084, People's Republic of China
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114
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Wang Y, Kaur G, Zysk A, Liapis V, Hay S, Santos A, Losic D, Evdokiou A. Systematic in vitro nanotoxicity study on anodic alumina nanotubes with engineered aspect ratio: Understanding nanotoxicity by a nanomaterial model. Biomaterials 2015; 46:117-30. [DOI: 10.1016/j.biomaterials.2014.12.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 11/25/2014] [Accepted: 12/16/2014] [Indexed: 01/13/2023]
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115
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Liang Y, Su Z, Yao Y, Zhang N. Preparation of pH Sensitive Pluronic-Docetaxel Conjugate Micelles to Balance the Stability and Controlled Release Issues. MATERIALS 2015; 8:379-391. [PMID: 28787944 PMCID: PMC5455281 DOI: 10.3390/ma8020379] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 01/13/2015] [Indexed: 01/03/2023]
Abstract
A novel polymer-drug conjugate was prepared by the chemical reaction between the copolymer Pluronic P123 and the docetaxel via a pH sensitive hydrazone bond. These pluronic P123-docetaxel (DTX) conjugates (P123-DTX) could form the stable drug-loaded materials that can self-assemble into the defined nano-micelles in aqueous solution because of their obvious amphiphilic property and low critical micelle concentration. The spherical morphology and particle size of the prepared nano-micelles were characterized by transmission electron microscopy and dynamic light scattering, respectively. Moreover, after the introduction of pH sensitive hydrazone bond, P123-DTX micelle showed a pH dependent drug release behavior. At pH 5.0 (in 48 h), the cumulative release amount of DTX were ~84.9%, which is about six times higher than that at pH 7.4. The prepared novel p123-DTX conjugates may offer a great benefit for drug delivery and controlling the drug release.
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Affiliation(s)
- Yanchao Liang
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, Ji'nan 250012, Shandong, China.
| | - Zhihui Su
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, Ji'nan 250012, Shandong, China.
| | - Yao Yao
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, Ji'nan 250012, Shandong, China.
| | - Na Zhang
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, Ji'nan 250012, Shandong, China.
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116
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Puntel A, Maeda A, Golczak M, Gao SQ, Yu G, Palczewski K, Lu ZR. Prolonged prevention of retinal degeneration with retinylamine loaded nanoparticles. Biomaterials 2015; 44:103-10. [PMID: 25617130 DOI: 10.1016/j.biomaterials.2014.12.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Revised: 12/12/2014] [Accepted: 12/20/2014] [Indexed: 01/07/2023]
Abstract
Retinal degeneration impairs the vision of millions in all age groups worldwide. Increasing evidence suggests that the etiology of many retinal degenerative diseases is associated with impairment in biochemical reactions involved in the visual cycle, a metabolic pathway responsible for regeneration of the visual chromophore (11-cis-retinal). Inefficient clearance of toxic retinoid metabolites, especially all-trans-retinal, is considered responsible for photoreceptor cytotoxicity. Primary amines, including retinylamine, are effective in lowing the concentration of all-trans-retinal within the retina and thus prevent retina degeneration in mouse models of human retinopathies. Here we achieved prolonged prevention of retinal degeneration by controlled delivery of retinylamine to the eye from polylactic acid nanoparticles in Abca4(-/-)Rdh8(-/-) (DKO) mice, an animal model of Stargardt disease/age-related macular degeneration. Subcutaneous administration of the nanoparticles containing retinylamine provided a constant supply of the drug to the eye for about a week and resulted in effective prolonged prevention of light-induced retinal degeneration in DKO mice. Retinylamine nanoparticles hold promise for prolonged prophylactic treatment of human retinal degenerative diseases, including Stargardt disease and age-related macular degeneration.
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Affiliation(s)
- Anthony Puntel
- Department of Biomedical Engineering, School of Engineering, Case Western Reserve University, Cleveland, OH 44140, USA
| | - Akiko Maeda
- Department of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, OH 44140, USA; Department of Ophthalmology, School of Medicine, Case Western Reserve University, Cleveland, OH 44140, USA
| | - Marcin Golczak
- Department of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, OH 44140, USA
| | - Song-Qi Gao
- Department of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, OH 44140, USA
| | - Guanping Yu
- Department of Biomedical Engineering, School of Engineering, Case Western Reserve University, Cleveland, OH 44140, USA
| | - Krzysztof Palczewski
- Department of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, OH 44140, USA
| | - Zheng-Rong Lu
- Department of Biomedical Engineering, School of Engineering, Case Western Reserve University, Cleveland, OH 44140, USA.
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117
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Wang Y, Santos A, Evdokiou A, Losic D. An overview of nanotoxicity and nanomedicine research: principles, progress and implications for cancer therapy. J Mater Chem B 2015; 3:7153-7172. [DOI: 10.1039/c5tb00956a] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The studies of nanomaterial-based drug delivery and nanotoxicity are closely interconnected.
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Affiliation(s)
- Ye Wang
- School of Chemical Engineering
- The University of Adelaide
- 5005 Adelaide
- Australia
- School of Medicine
| | - Abel Santos
- School of Chemical Engineering
- The University of Adelaide
- 5005 Adelaide
- Australia
| | - Andreas Evdokiou
- School of Medicine
- Discipline of Surgery
- The University of Adelaide
- Australia
| | - Dusan Losic
- School of Chemical Engineering
- The University of Adelaide
- 5005 Adelaide
- Australia
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118
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Liang X, Yang Y, Wang L, Zhu X, Zeng X, Wu X, Chen H, Zhang X, Mei L. pH-Triggered burst intracellular release from hollow microspheres to induce autophagic cancer cell death. J Mater Chem B 2015; 3:9383-9396. [DOI: 10.1039/c5tb00328h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Rapamycin–NaHCO3-loaded HMs combined CQ–NaHCO3-loaded HMs could efficiently induce cancer cell death through apoptosis with autophagosome both in vitro and in vivo.
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Affiliation(s)
- Xin Liang
- School of Life Sciences
- Tsinghua University
- Beijing 100084
- China
- The Shenzhen Key Lab of Gene and Antibody Therapy, and Division of Life and Health Sciences
| | - Ying Yang
- School of Life Sciences
- Tsinghua University
- Beijing 100084
- China
- The Shenzhen Key Lab of Gene and Antibody Therapy, and Division of Life and Health Sciences
| | - Lijun Wang
- School of Life Sciences
- Tsinghua University
- Beijing 100084
- China
- The Shenzhen Key Lab of Gene and Antibody Therapy, and Division of Life and Health Sciences
| | - Xianbing Zhu
- School of Life Sciences
- Tsinghua University
- Beijing 100084
- China
- The Shenzhen Key Lab of Gene and Antibody Therapy, and Division of Life and Health Sciences
| | - Xiaowei Zeng
- School of Life Sciences
- Tsinghua University
- Beijing 100084
- China
- The Shenzhen Key Lab of Gene and Antibody Therapy, and Division of Life and Health Sciences
| | - Xiaojin Wu
- School of Life Sciences
- Tsinghua University
- Beijing 100084
- China
- The Shenzhen Key Lab of Gene and Antibody Therapy, and Division of Life and Health Sciences
| | - Hongbo Chen
- School of Life Sciences
- Tsinghua University
- Beijing 100084
- China
- The Shenzhen Key Lab of Gene and Antibody Therapy, and Division of Life and Health Sciences
| | - Xudong Zhang
- School of Life Sciences
- Tsinghua University
- Beijing 100084
- China
- The Shenzhen Key Lab of Gene and Antibody Therapy, and Division of Life and Health Sciences
| | - Lin Mei
- School of Life Sciences
- Tsinghua University
- Beijing 100084
- China
- The Shenzhen Key Lab of Gene and Antibody Therapy, and Division of Life and Health Sciences
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119
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Tang ZH, Li T, Chang LL, Zhu H, Tong YG, Chen XP, Wang YT, Lu JJ. Glycyrrhetinic Acid triggers a protective autophagy by activation of extracellular regulated protein kinases in hepatocellular carcinoma cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:11910-6. [PMID: 25403108 PMCID: PMC4264863 DOI: 10.1021/jf503968k] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Glycyrrhetinic acid (GA), one of the main constituents of the famous Chinese medicinal herb and food additive licorice (Glycyrrhiza uralensis Fisch), has been indicated to possess potential anticancer effects and is widely utilized in hepatocellular carcinoma (HCC) targeted drug delivery systems (TDDS) due to the highly expressed target binding sites of GA on HCC cells. This study found that GA reduced the cell viability, increased the release of lactate dehydrogenase, and enhanced the expression of Bax, cleaved caspase-3, and LC3-II in HCC cells. The GA-triggered autophagy has been further confirmed by monodansylcadaverine staining as well as transmission electron microscopy analysis. The cell viability was obviously decreased whereas the expression of cleaved caspases was significantly increased when inhibition of autophagy by choloroquine or bafilomycin A1, suggesting that GA triggered a protective autophagy. Extracellular regulated protein kinase (ERK) was activated after treatment with GA in HepG2 cells and pretreatment with U0126 or PD98059, the MEK inhibitors, reversed GA-triggered autophagy as evidenced by decreased expression of LC3-II and formation of autophagosomes, respectively. Furthermore, GA-induced cell death and apoptosis were enhanced after pretreatment with PD98059. This is the first report that GA triggers a protective autophagy in HCC cells via activation of ERK, which might attenuate the anticancer effects of GA or chemotherapeutic drugs loaded with GA-modified TDDS.
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Affiliation(s)
- Zheng-Hai Tang
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macao, China
| | - Ting Li
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macao, China
| | - Lin-Lin Chang
- Zhejiang
Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical
Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Hong Zhu
- Zhejiang
Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical
Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yun-Guang Tong
- Department
of Pathology, Xinxiang Medical University, 601 East Jinsui Ave., Xinxiang, Henan, China
- Department
of Medicine, Cedars−Sinai Medical Center, University of California at Los Angeles School of Medicine, Los Angeles, California 90048, United States
| | - Xiu-Ping Chen
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macao, China
| | - Yi-Tao Wang
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macao, China
| | - Jin-Jian Lu
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macao, China
- (J.-J.L.) Mail: State Key Laboratory
of Quality Research in Chinese Medicine, Institute of Chinese Medical
Sciences, University of Macau, Avenida da Universidade, Taipa, Macao,
China. Phone: 853-88224674. Fax: 853-28841358. E-mail: or
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120
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The chemotherapeutic potential of PEG-b-PLGA copolymer micelles that combine chloroquine as autophagy inhibitor and docetaxel as an anti-cancer drug. Biomaterials 2014; 35:9144-54. [DOI: 10.1016/j.biomaterials.2014.07.028] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 07/20/2014] [Indexed: 12/16/2022]
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121
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Hoang KV, Borteh HM, Rajaram MVS, Peine KJ, Curry H, Collier MA, Homsy ML, Bachelder EM, Gunn JS, Schlesinger LS, Ainslie KM. Acetalated dextran encapsulated AR-12 as a host-directed therapy to control Salmonella infection. Int J Pharm 2014; 477:334-43. [PMID: 25447826 DOI: 10.1016/j.ijpharm.2014.10.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 09/22/2014] [Accepted: 10/07/2014] [Indexed: 10/24/2022]
Abstract
AR-12 has been evaluated in clinical trials as an anti-cancer agent but also has demonstrated host-directed, broad-spectrum clearance of bacteria. We have previously shown that AR-12 has activity in vitro against Salmonella enterica serovar Typhimurium and Francisella species by inducing autophagy and other host immune pathways. AR-12 treatment of S. Typhimurium-infected mice resulted in a 10-fold reduction in bacterial load in the liver and spleen and an increased survival time. However, AR-12 treatment did not protect mice from death, likely due poor formulation. In the current study, AR-12 was encapsulated in a microparticulate carrier formulated from the novel degradable biopolymer acetalated dextran (Ace-DEX) and subsequently evaluated for its activity in human monocyte-derived macrophages (hMDMs). Our results show that hMDMs efficiently internalized Ace-DEX microparticles (MPs), and that encapsulation significantly reduced host cell cytotoxicity compared to unencapsulated AR-12. Efficient macrophage internalization of AR-12 loaded MPs (AR-12/MPs) was further demonstrated by autophagosome formation that was comparable to free AR-12 and resulted in enhanced clearance of intracellular Salmonella. Taken together, these studies provide support that Ace-DEX encapsulated AR-12 may be a promising new therapeutic agent to control intracellular bacterial pathogens of macrophages by targeting delivery and reducing drug toxicity.
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Affiliation(s)
- Ky V Hoang
- Center for Microbial Interface Biology, Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210, United States
| | - Hassan M Borteh
- Division of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Murugesan V S Rajaram
- Center for Microbial Interface Biology, Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210, United States
| | - Kevin J Peine
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, 4211 Marsico Hall, 125 Mason Farm Road, Chapel Hill, NC 27599, United States
| | - Heather Curry
- Center for Microbial Interface Biology, Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210, United States
| | - Michael A Collier
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, 4211 Marsico Hall, 125 Mason Farm Road, Chapel Hill, NC 27599, United States
| | - Michael L Homsy
- Department of Chemical and Bimolecular Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, United States
| | - Eric M Bachelder
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, 4211 Marsico Hall, 125 Mason Farm Road, Chapel Hill, NC 27599, United States
| | - John S Gunn
- Center for Microbial Interface Biology, Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210, United States
| | - Larry S Schlesinger
- Center for Microbial Interface Biology, Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210, United States
| | - Kristy M Ainslie
- Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, 4211 Marsico Hall, 125 Mason Farm Road, Chapel Hill, NC 27599, United States.
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122
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Li Y, Wang S, Wang Z, Qian X, Fan J, Zeng X, Sun Y, Song P, Feng M, Ju D. Cationic poly(amidoamine) dendrimers induced cyto-protective autophagy in hepatocellular carcinoma cells. NANOTECHNOLOGY 2014; 25:365101. [PMID: 25140534 DOI: 10.1088/0957-4484/25/36/365101] [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
Poly(amidoamine) (PAMAM) dendrimers are proposed as one of the most promising nanomaterials for biomedical applications because of their unique tree-like structure, monodispersity and tunable properties. In this study, we found that PAMAM dendrimers could induce the formation of autophagosomes and the conversion of microtubule-associated protein 1 light chain 3 (LC3) in hepatocellular carcinoma HepG2 cells, while the inhibition of the Akt/mTOR and activation of the Erk 1/2 signaling pathways were involved in autophagy-induced by PAMAM dendrimers. We also investigated the suppression of autophagy with the obviously enhanced cytotoxicity of PAMAM dendrimers. Moreover, the blockage of a reactive oxygen species (ROS) could enhance the growth inhibition and apoptosis of hepatocellular carcinoma cells, induced by PAMAM dendrimers through reducing autophagic effects. Taken together, these findings explored the role and mechanism of autophagy induced by PAMAM dendrimers in HepG2 cells, provided new insight into the effect of autophagy on drug delivery nanomaterials and tumor cells and contributed to the use of a drug delivery vehicle for hepatocellular carcinoma treatment.
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123
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Zhang X, Yang Y, Liang X, Zeng X, Liu Z, Tao W, Xiao X, Chen H, Huang L, Mei L. Enhancing therapeutic effects of docetaxel-loaded dendritic copolymer nanoparticles by co-treatment with autophagy inhibitor on breast cancer. Am J Cancer Res 2014; 4:1085-95. [PMID: 25285162 PMCID: PMC4173759 DOI: 10.7150/thno.9933] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 07/30/2014] [Indexed: 12/13/2022] Open
Abstract
Dendrimers are synthetic nanocarriers that comprise a highly branched spherical polymer as new, efficient tools for drug delivery. However, the fate of nanocarriers after being internalized into cells has seldom been studied. Docetaxel loaded dendritic copolymer H40-poly(D,L-lactide) nanoparticles, referred to as “DTX-H40-PLA NPs”, were prepared and used as a model to evaluate whether the NPs were sequestered by autophagy and fused with lysosomes. Besides being degraded through the endolysosomal pathway, the DTX-loaded H40-PLA NPs were also sequestered by autophagosomes and degraded through the autolysosomal pathway. DTX-loaded H40-PLA NPs may stop exerting beneficial effects after inducing autophagy of human MCF-7 cancer cells. Co-delivery of autophagy inhibitor such as chloroquine and chemotherapeutic drug DTX by dendritic copolymer NPs greatly enhanced cancer cell killing in vitro, and decreased both the volume and weight of the tumors in severe combined immunodeficient mice. These findings provide valuable evidence for development of nanomedicine such as dendritic copolymer NPs for clinical application.
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124
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Remaut K, Oorschot V, Braeckmans K, Klumperman J, De Smedt SC. Lysosomal capturing of cytoplasmic injected nanoparticles by autophagy: an additional barrier to non viral gene delivery. J Control Release 2014; 195:29-36. [PMID: 25125327 DOI: 10.1016/j.jconrel.2014.08.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 08/01/2014] [Accepted: 08/02/2014] [Indexed: 11/18/2022]
Abstract
Autophagy or 'self-eating' is a process by which defective organelles and foreign material can be cleared from the cell's cytoplasm and delivered to the lysosomes in which degradation occurs. It remains an open question, however, whether nanoparticles that did not enter the cell through endocytosis can also be captured from the cytoplasm by autophagy. We demonstrate that nanoparticles that are introduced directly in the cytoplasm of the cells by microinjection, can trigger an autophagy response. Moreover, both polystyrene beads and plasmid DNA containing poly-ethylene-imine complexes colocalize with autophagosomes and lysosomes, as was confirmed by electron microscopy. This indicates that cytoplasmic capturing of nanoparticles can occur by an autophagy response. The capturing of nanoparticles from the cytoplasm most likely limits the time frame in which efficient nucleic acid delivery can be obtained. Hence, autophagy forms an additional barrier to non-viral gene delivery, a notion that was not often taken into account before. Furthermore, these findings urge us to reconsider the idea that a single endosomal escape event is sufficient to have the long-lasting presence of nanoparticles in the cytoplasm of the cells.
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Affiliation(s)
- Katrien Remaut
- Lab General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Viola Oorschot
- Dept. of Cell Biology, Center for Molecular Medicine, Universital Medical Center Utrecht, The Netherlands
| | - Kevin Braeckmans
- Lab General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Judith Klumperman
- Dept. of Cell Biology, Center for Molecular Medicine, Universital Medical Center Utrecht, The Netherlands
| | - Stefaan C De Smedt
- Lab General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium.
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125
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Panzarini E, Dini L. Nanomaterial-induced autophagy: a new reversal MDR tool in cancer therapy? Mol Pharm 2014; 11:2527-38. [PMID: 24921216 DOI: 10.1021/mp500066v] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Most of the therapeutic strategies to counteract cancer imply killing of malignant cells. The most exploited cell death mechanism in cancer therapies is apoptosis, but recently, a lot of papers report that other mechanisms, mainly autophagy, could represent a new line of attack in the fight against cancer. One of the limitations for the effectiveness of the approved clinical treatments is the phenomenon of multidrug resistance (MDR) which enables the cancer cells to develop resistance to therapy, especially for chemotherapy. The MDR mechanisms include (a) decreased uptake of drug, (b) reduced intracellular drug concentration by efflux pumps, (c) altered cell cycle checkpoints, (d) altered drug targets, (e) increased metabolism of drugs, (f) induced emergency response genes to impair apoptotic pathway, and (g) altered drug detoxification. Great efforts have been made to reverse MDR. Currently, autophagy and nanosized drug delivery systems (DDSs) belonging to nanomaterials (NMs) provide alternative strategies to circumvent MDR. Nanosized DDSs are very promising tools to accumulate chemotherapeutics at targeting sites and control temporal and spatial drug release into tumor cells. On the other hand, autophagy could overrule drug resistance upon its activation by ensuring cell death via switching its prosurvival role to a prodeath one or by mediating the occurrence of cell death, i.e., apoptosis or necrosis. Likewise, the autophagy inhibition could counteract MDR by sensitizing the cells to anticancer molecules, i.e., Src family tyrosine kinase (SFK) inhibitors or 5-fluorouracil. Noteworthy, autophagy has been recently indicated to be a common cellular response to NMs, corroborating the fascinating idea of the exploitation of NM-induced autophagy in nanomedicine therapy. This review focuses on recently published literature about the relationship between MDR reversal and NMs or autophagy pointing to hypothesize a pivotal role of autophagy modulation induced by NMs in counteracting MDR.
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Affiliation(s)
- Elisa Panzarini
- Department of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento , 73100 Lecce, Italy
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126
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Soliman GM, Redon R, Sharma A, Mejía D, Maysinger D, Kakkar A. Miktoarm Star Polymer Based Multifunctional Traceable Nanocarriers for Efficient Delivery of Poorly Water Soluble Pharmacological Agents. Macromol Biosci 2014; 14:1312-24. [DOI: 10.1002/mabi.201400123] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/16/2014] [Indexed: 12/21/2022]
Affiliation(s)
- Ghareb M. Soliman
- Department of Chemistry; McGill University; 801 Sherbrooke St. West Montreal Quebec, Canada H3A 0B8
- Department of Pharmacology and Therapeutics; McGill University; 3655 Promenade Sir-William-Osler Montreal Quebec, Canada H3G 1Y6
- Department of Pharmaceutics, Faculty of Pharmacy; Assiut University; 71526 Assiut Egypt
| | - Rocio Redon
- Department of Chemistry; McGill University; 801 Sherbrooke St. West Montreal Quebec, Canada H3A 0B8
- Centro de Ciencias Aplicadas y Desarrollo Tecnológico; Universidad Nacional Autónoma de México; Cd. Universitaria A.P. 70-186, C.P. 04510 Coyoacan México D. F., México
| | - Anjali Sharma
- Department of Chemistry; McGill University; 801 Sherbrooke St. West Montreal Quebec, Canada H3A 0B8
| | - Diana Mejía
- Department of Pharmacology and Therapeutics; McGill University; 3655 Promenade Sir-William-Osler Montreal Quebec, Canada H3G 1Y6
| | - Dusica Maysinger
- Department of Pharmacology and Therapeutics; McGill University; 3655 Promenade Sir-William-Osler Montreal Quebec, Canada H3G 1Y6
| | - Ashok Kakkar
- Department of Chemistry; McGill University; 801 Sherbrooke St. West Montreal Quebec, Canada H3A 0B8
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127
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Muthu MS, Leong DT, Mei L, Feng SS. Nanotheranostics - application and further development of nanomedicine strategies for advanced theranostics. Am J Cancer Res 2014; 4:660-77. [PMID: 24723986 PMCID: PMC3982135 DOI: 10.7150/thno.8698] [Citation(s) in RCA: 347] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 03/11/2014] [Indexed: 12/16/2022] Open
Abstract
Nanotheranostics is to apply and further develop nanomedicine strategies for advanced theranostics. This review summarizes the various nanocarriers developed so far in the literature for nanotheranostics, which include polymer conjugations, dendrimers, micelles, liposomes, metal and inorganic nanoparticles, carbon nanotubes, and nanoparticles of biodegradable polymers for sustained, controlled and targeted co-delivery of diagnostic and therapeutic agents for better theranostic effects with fewer side effects. The theranostic nanomedicine can achieve systemic circulation, evade host defenses and deliver the drug and diagnostic agents at the targeted site to diagnose and treat the disease at cellular and molecular level. The therapeutic and diagnostic agents are formulated in nanomedicine as a single theranostic platform, which can then be further conjugated to biological ligand for targeting. Nanotheranostics can also promote stimuli-responsive release, synergetic and combinatory therapy, siRNA co-delivery, multimodality therapies, oral delivery, delivery across the blood-brain barrier as well as escape from intracellular autophagy. The fruition of nanotheranostics will be able to provide personalized therapy with bright prognosis, which makes even the fatal diseases curable or at least treatable at the earliest stage.
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