1
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Mermela A, Bołt M, Mrzygłód A, Żak P. Organocatalytic synthetic route to esters and their application in hydrosilylation process. Sci Rep 2024; 14:19108. [PMID: 39154105 PMCID: PMC11330490 DOI: 10.1038/s41598-024-70036-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 08/08/2024] [Indexed: 08/19/2024] Open
Abstract
A facile esterification of α,β-unsaturated aldehydes with alcohols has been developed for the synthesis of esters by using bulky N-heterocyclic (NHC) carbene as a metal-free and eco-friendly organocatalyst. This new protocol has been proved to be effective with a wide substrate scope, giving selective esters in yields greater than 84% under mild conditions. Moreover, proposed synthetic strategy enables modification of various types of silsesquioxanes (SQ) which cannot or are technically difficult to be carried out with known protocols. For the first time, a one-pot sequential esterification/hydrosilylation has been successfully carried out.
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Affiliation(s)
- Aleksandra Mermela
- Faculty of Chemistry, Department of Organometallic Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Małgorzata Bołt
- Faculty of Chemistry, Department of Organometallic Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Aleksandra Mrzygłód
- Faculty of Chemistry, Department of Organometallic Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
- Centre for Advanced Technologies, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland
| | - Patrycja Żak
- Faculty of Chemistry, Department of Organometallic Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland.
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2
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Anderson LR, Hunter AP, Kershaw MJ, Bylikin SY, Bowen J, Taylor PG, Birchall MA, Mehrban N. "Clicking" trimeric peptides onto hybrid T 8POSS nanocages and identifying synthesis limitations. NANOSCALE 2024; 16:14802-14812. [PMID: 39028306 DOI: 10.1039/d4nr01685h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Macromolecule branching upon polyhedral oligomeric silsesquioxanes (POSS) via "click" chemistry has previously been reported for promoting natural biological responses in vitro, particularly when regarding their demonstrated biocompatibility and structural robustness as potential macromolecule anchoring points. However, "clicking" of large molecules around POSS structures uncovers two main challenges: (1) a synthetic challenge encompassing multi-covalent attachment of macromolecules to a single nanoscale-central position, and (2) purification and separation of fully adorned nanocages from those that are incomplete due to their similar physical characteristics. Here we present peptide decoration to a T8POSS nanocage through the attachment of azido-modified trimers. Triglycine- and trialanine-methyl esters "clicked" to 97% and 92% completion, respectively, resulting in 84% and 68% yields of the fully-adorned octamers. The "clicks" halt within 27-h of the reaction time, and efforts to further increase the octamer yield were of negligible benefit. Exploration of reaction conditions reveals multiple factors preventing full octa-arm modification to all available POSS nanocages, and offers insights into macromolecule attachment between both peptides and small inorganic-organic structures, all of which require consideration for future work of this nature.
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Affiliation(s)
- Lewis R Anderson
- University College London, Ear Institute, 332 Grays Inn Rd, London WC1X 8EE, UK
- University of Bath, Department of Life Sciences, Claverton Down, Bath BA2 7AX, UK.
| | - Ann P Hunter
- NMSF, Swansea University Medical School, Singleton Park, Swansea, SA2 8PP, UK
| | - Matthew J Kershaw
- The Open University, School of Life, Health & Chemical Sciences, Walton Hall, Kents Hill, Milton Keynes MK7 6AA, UK
| | - Sergey Y Bylikin
- The Open University, School of Life, Health & Chemical Sciences, Walton Hall, Kents Hill, Milton Keynes MK7 6AA, UK
| | - James Bowen
- The Open University, School of Engineering & Innovation, Walton Hall, Kents Hill, Milton Keynes MK7 6AA, UK
| | - Peter G Taylor
- The Open University, School of Life, Health & Chemical Sciences, Walton Hall, Kents Hill, Milton Keynes MK7 6AA, UK
| | - Martin A Birchall
- University College London, Ear Institute, 332 Grays Inn Rd, London WC1X 8EE, UK
| | - Nazia Mehrban
- University of Bath, Department of Life Sciences, Claverton Down, Bath BA2 7AX, UK.
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3
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Pan Y, Wang Z, Yan Z, Sun H, Zhang L, Zhang W. Novel Strategy for Screening Target Proteins by the Common Drugs─Sofosbuvir-Specific Profiling of HCV Patient Serum. Anal Chem 2024; 96:9535-9543. [PMID: 38804236 DOI: 10.1021/acs.analchem.4c00993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
It is the scientific basis of precision medicine to study all of the targets of drugs based on the interaction between drugs and proteins. It is worth paying attention to unknown proteins that interact with drugs to find new targets for the design of new drugs. Herein, we developed a protein profiling strategy based on drug-protein interactions and drug-modified magnetic nanoparticles and took hepatitis C virus (HCV) and its corresponding drug sofosbuvir (SOF) as an example. A SOF-modified magnetic separation medium (Fe3O4@POSS@SOF) was prepared, and a gradient elution strategy was employed and optimized to profile specific proteins interacted with SOF. A series of proteomic analyses were performed to profile proteins based on SOF-protein interactions (SPIs) in the serum of HCV patients to evaluate the specificity of the profiling strategy. As a result, five proteins were profiled with strong SPIs and exhibited high relevance with liver tissue, which were potentially new drug targets. Among them, HSP60 was used to confirm the highly specific interactions between the SOF and its binding proteins by Western blotting analysis. Besides, 124 and 29 differential proteins were profiled by SOF material from three HCV patient serum and pooled 20 HCV patient serum, respectively, by comparing with healthy human serum. In comparison with those profiled by the polyhedral oligomeric silsesquioxane (POSS) material, differential proteins profiled by the SOF material were highly associated with liver diseases through GO analysis and pathway analysis. Furthermore, four common differential proteins profiled by SOF material but not by POSS material were found to be identical and expressed consistently in both pooled serum samples and independent serum samples, which might potentially be biomarkers of HCV infection. Taken together, our study proposes a highly specific protein profiling strategy to display distinctive proteomic profiles, providing a novel idea for drug design and development.
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Affiliation(s)
- Yini Pan
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Zhenxin Wang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, P. R. China
| | - Zhichao Yan
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Haofan Sun
- State Key Laboratory of Proteomics, National Center for Protein Sciences Beijing, Beijing Institute of Lifeomics, Beijing Proteome Research Center, Beijing 102413, P. R. China
| | - Lingyi Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Weibing Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
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4
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Sui F, Fang Z, Li L, Wan X, Zhang Y, Cai X. pH-triggered "PEG" sheddable and folic acid-targeted nanoparticles for docetaxel delivery in breast cancer treatment. Int J Pharm 2023; 644:123293. [PMID: 37541534 DOI: 10.1016/j.ijpharm.2023.123293] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/13/2023] [Accepted: 08/02/2023] [Indexed: 08/06/2023]
Abstract
Multifunctional nanoparticles have attracted significant attentions for oncology and cancer treatment. In fact, they could address critical point for tumour treatment by creating a stimuli-responsive targeted drug delivery system that can exist stably in the systemic circulation, efficiently penetrate the tumour tissue, and then accumulate in tumour cells in large quantities. A novel stepwise pH-responsive multifunctional nanoparticles (FPDPCNPs/DTX) for targeted delivery of the antitumour drug docetaxel (DTX) is prepared by coating a tumour acidity-sensitive "sheddable" FA modified β-carboxylic amide functionalized PEG layer (folic acid-polyethylene glycol-2,3-dimethylmaleic anhydride, FA-PEG-DA) on the cationic drug-loaded core (poly(β-amino ester-cholesterol, PAE-Chol) through electrostatic interaction in this study. The charge shielding behaviour of the FPDPCNPs/DTX was confirmed by zeta potential assay. The surface charges of the nanoparticles can change from positive to negative after PEG coating. The IC50 values of FPDPCNPs/DTX was 3.04 times higher than that of PEG "unsheddable" nanoparticles in cytotoxicity experiments. The results of in vivo experiment further showed that FPDPCNPs/DTX had enhanced tumour targeting effect, the tumour inhibition rate of FPDPCNPs/DTX was as high as 81.99%, which was 1.51 times that of free DTX. Under a micro acidic environment and folate receptor (FR)-mediated targeting, FPDPCNPs/DTX contributed to more uptake of DTX by MCF-7 cells. In summary, FPDPCNPs/DTX as a multifunctional nano-drug delivery system provides a promising strategy for efficiently delivering antitumour drugs.
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Affiliation(s)
- Fangqian Sui
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Zengjun Fang
- Department of Pharmacy, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Lingjun Li
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Xinhuan Wan
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Yongqing Zhang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China
| | - Xiaoqing Cai
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, China.
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Yao P, Wang X, Wang Q, Dai Q, Peng Y, Yuan Q, Mou N, Lv S, Weng B, Wang Y, Sun F. Cyclic RGD-Functionalized pH/ROS Dual-Responsive Nanoparticle for Targeted Breast Cancer Therapy. Pharmaceutics 2023; 15:1827. [PMID: 37514014 PMCID: PMC10386338 DOI: 10.3390/pharmaceutics15071827] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/18/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
Breast cancer is the most common malignant tumor in women and is a big challenge to clinical treatment due to the high morbidity and mortality. The pH/ROS dual-responsive nanoplatforms may be an effective way to significantly improve the therapeutic efficacy of breast cancer. Herein, we report a docetaxel (DTX)-loaded pH/ROS-responsive NP that could achieve active targeting of cancer cells and selective and complete drug release for effective drug delivery. The pH/ROS-responsive NPs were fabricated using nanocarriers that consist of an ROS-responsive moiety (4-hydroxymethylphenylboronic acid pinacol ester, HPAP), cinnamaldehyde (CA, an aldehyde organic compound with anticancer activities) and cyclodextrin (α-CD). The NPs were loaded with DTX, modified with a tumor-penetration peptide (circular RGD, cRGD) and named DTX/RGD NPs. The cRGD could promote DTX/RGD NPs penetration into deep tumor tissue and specifically target cancer cells. After internalization by cancer cells through receptor-mediated endocytosis, the pH-responsive acetal was cleaved to release CA in the lysosomal acidic environment. Meanwhile, the high ROS in tumor cells induced the disassembly of NPs with complete release of DTX. In vitro cellular assays verified that DTX/RGD NPs could be effectively internalized by 4T1 cells, obviously inducing apoptosis, blocking the cell cycle of 4T1 cells and consequently, killing tumor cells. In vivo animal experiments demonstrated that the NPs could target to the tumor sites and significantly inhibit the tumor growth in 4T1 breast cancer mice. Both in vitro and in vivo investigations demonstrated that DTX/RGD NPs could significantly improve the antitumor effect compared to free DTX. Thus, the DTX/RGD NPs provide a promising strategy for enhancing drug delivery and cancer therapy.
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Affiliation(s)
- Pu Yao
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Xiaowen Wang
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Qianmei Wang
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Qing Dai
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yu Peng
- Department of Oncology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Qian Yuan
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Nan Mou
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Shan Lv
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Bangbi Weng
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yu Wang
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Fengjun Sun
- Department of Pharmacy, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China
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6
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Patel T, Mohd Itoo A, Paul M, Purna Kondapaneni L, Ghosh B, Biswas S. Block HPMA-based pH-sensitive Gemcitabine Pro-drug Nanoaggregate for Cancer Treatment. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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7
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Ullah A, Ahmad S, Maric M, Shah SM, Hussain H. Low temperature
ATRP
of
POSS‐MA
and its amphiphilic pentablock copolymers. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220129] [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]
Affiliation(s)
- Asad Ullah
- Department of Chemistry Quaid‐i‐Azam University Islamabad Islamabad Pakistan
- Department of Chemical Engineering McGill University Montreal Quebec Canada
| | - Saira Ahmad
- Department of Chemistry Quaid‐i‐Azam University Islamabad Islamabad Pakistan
| | - Milan Maric
- Department of Chemical Engineering McGill University Montreal Quebec Canada
| | - Syed Mujtaba Shah
- Department of Chemistry Quaid‐i‐Azam University Islamabad Islamabad Pakistan
| | - Hazrat Hussain
- Department of Chemistry Quaid‐i‐Azam University Islamabad Islamabad Pakistan
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De R, Mahata MK, Kim K. Structure-Based Varieties of Polymeric Nanocarriers and Influences of Their Physicochemical Properties on Drug Delivery Profiles. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105373. [PMID: 35112798 PMCID: PMC8981462 DOI: 10.1002/advs.202105373] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/09/2022] [Indexed: 05/04/2023]
Abstract
Carriers are equally important as drugs. They can substantially improve bioavailability of cargos and safeguard healthy cells from toxic effects of certain therapeutics. Recently, polymeric nanocarriers (PNCs) have achieved significant success in delivering drugs not only to cells but also to subcellular organelles. Variety of natural sources, availability of different synthetic routes, versatile molecular architectures, exploitable physicochemical properties, biocompatibility, and biodegradability have presented polymers as one of the most desired materials for nanocarrier design. Recent innovative concepts and advances in PNC-associated nanotechnology are providing unprecedented opportunities to engineer nanocarriers and their functions. The efficiency of therapeutic loading has got considerably increased. Structural design-based varieties of PNCs are widely employed for the delivery of small therapeutic molecules to genes, and proteins. PNCs have gained ever-increasing attention and certainly paves the way to develop advanced nanomedicines. This article presents a comprehensive investigation of structural design-based varieties of PNCs and the influences of their physicochemical properties on drug delivery profiles with perspectives highlighting the inevitability of incorporating both the multi-stimuli-responsive and multi-drug delivery properties in a single carrier to design intelligent PNCs as new and emerging research directions in this rapidly developing area.
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Affiliation(s)
- Ranjit De
- Laboratory of Molecular NeurophysiologyDepartment of Life SciencesPohang University of Science and Technology (POSTECH)77 Cheongam‐RoPohangGyeongbuk37673South Korea
- Division of Integrative Biosciences and Biotechnology (IBB)Pohang University of Science and Technology (POSTECH)77 Cheongam‐RoPohangGyeongbuk37673South Korea
| | - Manoj Kumar Mahata
- Drittes Physikalisches Institut ‐ BiophysikGeorg‐August‐Universität GöttingenFriedrich‐Hund‐Platz 1Göttingen37077Germany
| | - Kyong‐Tai Kim
- Laboratory of Molecular NeurophysiologyDepartment of Life SciencesPohang University of Science and Technology (POSTECH)77 Cheongam‐RoPohangGyeongbuk37673South Korea
- Division of Integrative Biosciences and Biotechnology (IBB)Pohang University of Science and Technology (POSTECH)77 Cheongam‐RoPohangGyeongbuk37673South Korea
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Paliwal H, Parihar A, Prajapati BG. Current State-of-the-Art and New Trends in Self-Assembled Nanocarriers as Drug Delivery Systems. FRONTIERS IN NANOTECHNOLOGY 2022. [DOI: 10.3389/fnano.2022.836674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Self-assembled nanocarrier drug delivery has received profuse attention in the field of diagnosis and treatment of diseases. These carriers have proved that serious life-threatening diseases can be eliminated evidently by virtue of their characteristic design and features. This review is aimed at systematically presenting the research and advances in the field of self-assembled nanocarriers such as polymeric nanoparticles, dendrimers, liposomes, inorganic nanocarriers, solid lipid nanoparticles, polymerosomes, micellar systems, niosomes, and some other nanoparticles. The self-assembled delivery of nanocarriers has been developed in recent years for targeting diseases. Some of the innovative attempts with regard to prolonging drug action, improving bioavailability, avoiding drug resistance, enhancing cellular uptake, and so on have been discussed. The discussion about various delivery systems included the investigation conducted at the preliminary stage, i.e., preclinical trials and assessment of safety. The clinical studies of some of the recently developed self-assembled products are currently at the clinical trial phase or FDA approved.
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10
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Guo J, Zeng H, Shi X, Han T, Liu Y, Liu Y, Liu C, Qu D, Chen Y. A CFH peptide-decorated liposomal oxymatrine inactivates cancer-associated fibroblasts of hepatocellular carcinoma through epithelial–mesenchymal transition reversion. J Nanobiotechnology 2022; 20:114. [PMID: 35248071 PMCID: PMC8898522 DOI: 10.1186/s12951-022-01311-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/15/2022] [Indexed: 12/12/2022] Open
Abstract
AbstractCancer-associated fibroblasts (CAFs) deteriorate tumor microenvironment (TME) and hinder intra-tumoral drug delivery. Direct depleting CAFs exists unpredictable risks of tumor metastasis. Epithelial–mesenchymal transition (EMT) is a critical process of CAFs converted from hepatic stellate cells during hepatocellular tumorigenesis; however, until now the feasibility of reversing EMT to battle hepatocellular carcinoma has not been comprehensively explored. In this study, we report a CFH peptide (CFHKHKSPALSPVGGG)-decorated liposomal oxymatrine (CFH/OM-L) with a high affinity to Tenascin-C for targeted inactivating CAFs through reversing EMT, which is verified by the upregulation of E-cadherin and downregulation of vimentin, N-cadherin, and snail protein in vivo and in vitro. After the combination with icaritin-loaded lipid complex, CFH/OM-L obviously boosts the comprehensive anticancer efficacy in both 3D tumor spheroids and stromal-rich tumor xenograft nude mouse models. The combinational therapy not only effectively reversed the in vivo EMT process but also significantly lowered the collagen, creating favorable conditions for deep penetration of nanoparticles. More importantly, CFH/OM-L does not kill but inactivates CAFs, resulting in not only a low risk of tumor metastasis but also a reprogramming TME, such as M1 tumor-associated macrophages polarization and natural killer cells activation. Such strategy paves a moderate way to remold TME without depleting CAFs and provides a powerful tool to design strategies of combinational hepatocellular carcinoma therapy.
Graphical Abstract
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11
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Loman-Cortes P, Binte Huq T, Vivero-Escoto JL. Use of Polyhedral Oligomeric Silsesquioxane (POSS) in Drug Delivery, Photodynamic Therapy and Bioimaging. Molecules 2021; 26:molecules26216453. [PMID: 34770861 PMCID: PMC8588151 DOI: 10.3390/molecules26216453] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/15/2021] [Accepted: 10/22/2021] [Indexed: 01/18/2023] Open
Abstract
Polyhedral oligomeric silsesquioxanes (POSS) have attracted considerable attention in the design of novel organic-inorganic hybrid materials with high performance capabilities. Features such as their well-defined nanoscale structure, chemical tunability, and biocompatibility make POSS an ideal building block to fabricate hybrid materials for biomedical applications. This review highlights recent advances in the application of POSS-based hybrid materials, with particular emphasis on drug delivery, photodynamic therapy and bioimaging. The design and synthesis of POSS-based materials is described, along with the current methods for controlling their chemical functionalization for biomedical applications. We summarize the advantages of using POSS for several drug delivery applications. We also describe the current progress on using POSS-based materials to improve photodynamic therapies. The use of POSS for delivery of contrast agents or as a passivating agent for nanoprobes is also summarized. We envision that POSS-based hybrid materials have great potential for a variety of biomedical applications including drug delivery, photodynamic therapy and bioimaging.
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Affiliation(s)
- Paula Loman-Cortes
- Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA; (P.L.-C.); (T.B.H.)
- Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Tamanna Binte Huq
- Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA; (P.L.-C.); (T.B.H.)
- Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Juan L. Vivero-Escoto
- Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA; (P.L.-C.); (T.B.H.)
- Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
- The Center for Biomedical Engineering and Science, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
- Correspondence: ; Tel.: +1-704-687-5239
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12
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Fabrication of pH/Reduction Sensitive Polyethylene Glycol-Based Micelles for Enhanced Intracellular Drug Release. Pharmaceutics 2021; 13:pharmaceutics13091464. [PMID: 34575539 PMCID: PMC8470983 DOI: 10.3390/pharmaceutics13091464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 01/07/2023] Open
Abstract
At present, the drug is still difficult to release completely and quickly only with single stimulation. In order to promote the rapid release of polymeric micelles at tumor site, pH/reduction sensitive polymers (PCT) containing disulfide bonds and orthoester groups were synthesized. The PCT polymers can self-assemble in water and entrap doxorubicin to form drug-loaded micelles (DOX/PCT). In an in vitro drug release experiment, the cumulative release of DOX/PCT micelles in the simulated tumor microenvironment (pH 5.0 with GSH) reached (89.7 ± 11.7)% at 72 h, while it was only (16.7 ± 6.1)% in the normal physiological environment (pH 7.4 without GSH). In addition, pH sensitive DOX loaded micellar system (DOX/PAT) was prepared as a control. Furthermore, compared with DOX/PAT micelles, DOX/PCT micelles showed the stronger cytotoxicity against tumor cells to achieve an effective antitumor effect. After being internalized by clathrin/caveolin-mediated endocytosis and macropinocytosis, DOX/PCT micelles were depolymerized in intercellular acidic and a reductive environment to release DOX rapidly to kill tumor cells. Additionally, DOX/PCT micelles had a better inhibitory effect on tumor growth than DOX/PAT micelles in in vivo antitumor activity studies. Therefore, pH/reduction dual sensitive PCT polymers have great potential to be used as repaid release nanocarriers for intercellular delivery of antitumor drugs.
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Hershberger KK, Gauger AJ, Bronstein LM. Utilizing Stimuli Responsive Linkages to Engineer and Enhance Polymer Nanoparticle-Based Drug Delivery Platforms. ACS APPLIED BIO MATERIALS 2021; 4:4720-4736. [PMID: 35007022 DOI: 10.1021/acsabm.1c00351] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The devastating nature of cancer continues to be one of the leading causes of death in the world. Chemotherapy is among the most common forms of cancer treatment but comes with a host of adverse effects caused by the therapeutic agents damaging healthy tissue and organs. To limit these side effects, scientists have been designing stimuli responsive drug delivery vessels for targeted release. This Review focuses on the incorporation of stimuli responsive linkages in targeted drug delivery systems to enhance therapeutic efficiency. These platforms are primarily employed to control the distribution of anticancer agents in the body to reduce the adverse side effects caused by their toxicities. We will outline how drug delivery vessels are constructed so that exposure to select environmental and external stimuli releases the enclosed drug only at the target site. Stimuli responsive components are integrated within drug delivery vessels in the form of cross-linkers, polymers, and surface modifications. The changes, these moieties undergo upon stimuli exposure, cascade into larger scale alterations to the platforms, resulting in complete disassembly, reversible morphological variations, and enhanced cellular uptake. The ability for these modes of delivery to be initiated exclusively under stimuli exposure allows for release of toxic therapeutic agents to be confined only to the affected area.
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Affiliation(s)
- Kian K Hershberger
- Indiana University, Department of Chemistry, Bloomington, 800 East Kirkwood Avenue, Indiana 47405, United States
| | - Andrew J Gauger
- Indiana University, Department of Chemistry, Bloomington, 800 East Kirkwood Avenue, Indiana 47405, United States
| | - Lyudmila M Bronstein
- Indiana University, Department of Chemistry, Bloomington, 800 East Kirkwood Avenue, Indiana 47405, United States.,A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow, 119991 Russia.,King Abdulaziz University, Faculty of Science, Department of Physics, P.O. Box 80303, Jeddah 21589, Saudi Arabia
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14
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Yong HW, Kakkar A. Nanoengineering Branched Star Polymer-Based Formulations: Scope, Strategies, and Advances. Macromol Biosci 2021; 21:e2100105. [PMID: 34117840 DOI: 10.1002/mabi.202100105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/26/2021] [Indexed: 12/24/2022]
Abstract
Soft nanoparticles continue to offer a promising platform for the encapsulation and controlled delivery of poorly water-soluble drugs and help enhance their bioavailability at targeted sites. Linear amphiphilic block copolymers are the most extensively investigated in formulating delivery vehicles. However, more recently, there has been increasing interest in utilizing branched macromolecules for nanomedicine, as these have been shown to lower critical micelle concentrations, form particles of smaller dimensions, facilitate the inclusion of varied compositions and function-based entities, as well as provide prolonged and sustained release of cargo. In this review, it is aimed to discuss some of the key variables that are studied in tailoring branched architecture-based assemblies, and their influence on drug loading and delivery. By understanding structure-property relationships in these formulations, one can better design branched star polymers with suitable characteristics for efficient therapeutic interventions. The role played by polymer composition, chain architecture, crosslinking, stereocomplexation, compatibility between polymers and drugs, drug/polymer concentrations, and self-assembly methods in their performance as nanocarriers is highlighted.
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Affiliation(s)
- Hui Wen Yong
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montréal, Quebec, H3A 0B8, Canada
| | - Ashok Kakkar
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montréal, Quebec, H3A 0B8, Canada
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15
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Fan L, Wang X, Wu D. Polyhedral Oligomeric Silsesquioxanes (
POSS
)‐based Hybrid Materials: Molecular Design, Solution
Self‐Assembly
and Biomedical Applications. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000536] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Linfeng Fan
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Department of Biomedical Engineering, Southern University of Science and Technology Shenzhen Guangdong 518055 China
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16
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Lin X, Li L, Li S, Li Q, Xie D, Zhou M, Huang Y. Targeting the Opening of Mitochondrial Permeability Transition Pores Potentiates Nanoparticle Drug Delivery and Mitigates Cancer Metastasis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2002834. [PMID: 33643797 PMCID: PMC7887600 DOI: 10.1002/advs.202002834] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 10/09/2020] [Indexed: 05/19/2023]
Abstract
Mitochondria are highly involved in the metastasis of cancer cells. However, low permeability of mitochondria impedes the entry of anti-cancer drugs. Here, a self-assembled nanoparticle platform is designed that not only targets the DNA-intercalating agent doxorubicin to mitochondria but also enhances the specific penetration by opening the mitochondrial permeability transition pores (MPTPs). With drastic improvement in mitochondrial uptake, the drug delivery system results in substantial mitochondrial impairment leading to amplified induction of apoptosis, depletion of energy supply, and inhibition of numerous metastasis-associated proteins. As a consequence, the drug delivery system significantly inhibits the orthotopic tumor growth, and suppressed the metastasis of cancer cells detached from primary tumors. Additionally, the nanoparticle exhibits a potent effect on eradicating the metastasis of disseminated tumor cell from blood to lung. The results show that strategies of targeting mitochondria and unlocking MPTP are feasible and beneficial to mitigate both tumorigenesis and metastasis.
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Affiliation(s)
- Xi Lin
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)West China School of PharmacySichuan UniversityNo. 17, Block 3, South Renmin RoadChengdu610041P.R. China
| | - Lian Li
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)West China School of PharmacySichuan UniversityNo. 17, Block 3, South Renmin RoadChengdu610041P.R. China
| | - Shujie Li
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)West China School of PharmacySichuan UniversityNo. 17, Block 3, South Renmin RoadChengdu610041P.R. China
| | - Qiuyi Li
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)West China School of PharmacySichuan UniversityNo. 17, Block 3, South Renmin RoadChengdu610041P.R. China
| | - Dandan Xie
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)West China School of PharmacySichuan UniversityNo. 17, Block 3, South Renmin RoadChengdu610041P.R. China
| | - Minglu Zhou
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)West China School of PharmacySichuan UniversityNo. 17, Block 3, South Renmin RoadChengdu610041P.R. China
| | - Yuan Huang
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)West China School of PharmacySichuan UniversityNo. 17, Block 3, South Renmin RoadChengdu610041P.R. China
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17
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Yang J, Li Q, Zhou R, Zhou M, Lin X, Xiang Y, Xie D, Huang Y, Zhou Z. Combination of mitochondria targeting doxorubicin with Bcl-2 function-converting peptide NuBCP-9 for synergistic breast cancer metastasis inhibition. J Mater Chem B 2021; 9:1336-1350. [PMID: 33443508 DOI: 10.1039/d0tb02564j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Distant organ metastasis is the main cause of death in breast cancer patients. Evidences have shown that mitochondria also play a crucial role in tumor metastasis, except for as apoptosis center. However, the treatment of tumor growth and metastasis was reported to be limited by mitochondria-associated protein Bcl-2, which are gatekeepers of apoptosis and are found to reside in mitochondria mainly. Herein, we designed a mitochondria-targeting doxorubicin delivery system as well as a mitochondrial distributed Bcl-2 function-converting peptide NuBCP-9 delivery system, which are both based on N-(2-hydroxypropyl)methacrylamide copolymers, to achieve a synergistic effect on tumor regression and metastasis inhibition by combination therapy. After mitochondria were damaged by mitochondria-targeting peptide-modified doxorubicin, apoptosis was effectively enhanced by mitochondrial specifically distributed NuBCP-9 peptides, which converted Bcl-2 function from anti-apoptotic to pro-apoptotic and paved the way for the development of mitochondrial impairment. The combination treatment exhibited significant damage to mitochondria, including excess reactive oxygen species (ROS), the permeabilization of mitochondrial outer membrane (MOMP), and apoptosis initiation on 4T1 breast cancer cells. Meanwhile, besides enhanced tumor growth suppression, the combination treatment also improved the inhibition of 4T1 breast cancer metastasis both in vitro and in vivo. By increasing the expression of cytochrome C and decreasing the expression of Bcl-2, metal matrix protease-9 (MMP-9) as well as vascular endothelial growth factor (VEGF), the combination treatment successfully decreased 84% lung metastasis. Overall, our work provided a promising strategy for metastatic cancer treatment through mitochondria-targeting anti-cancer drug delivery and combination with mitochondrial distributed Bcl-2 function-converting peptide.
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Affiliation(s)
- Jiatao Yang
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy, Sichuan University, No. 17, Block 3, South Renmin Road, Chengdu 610041, P. R. China.
| | - Qiuyi Li
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy, Sichuan University, No. 17, Block 3, South Renmin Road, Chengdu 610041, P. R. China.
| | - Rui Zhou
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy, Sichuan University, No. 17, Block 3, South Renmin Road, Chengdu 610041, P. R. China.
| | - Minglu Zhou
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy, Sichuan University, No. 17, Block 3, South Renmin Road, Chengdu 610041, P. R. China.
| | - Xi Lin
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy, Sichuan University, No. 17, Block 3, South Renmin Road, Chengdu 610041, P. R. China.
| | - Yucheng Xiang
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy, Sichuan University, No. 17, Block 3, South Renmin Road, Chengdu 610041, P. R. China.
| | - Dandan Xie
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy, Sichuan University, No. 17, Block 3, South Renmin Road, Chengdu 610041, P. R. China.
| | - Yuan Huang
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy, Sichuan University, No. 17, Block 3, South Renmin Road, Chengdu 610041, P. R. China.
| | - Zhou Zhou
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy, Sichuan University, No. 17, Block 3, South Renmin Road, Chengdu 610041, P. R. China.
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18
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Inhibition of colorectal cancer-associated fibroblasts by lipid nanocapsules loaded with acriflavine or paclitaxel. Int J Pharm 2020; 584:119337. [PMID: 32371002 DOI: 10.1016/j.ijpharm.2020.119337] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/03/2020] [Accepted: 04/14/2020] [Indexed: 12/12/2022]
Abstract
Crosstalk between cancer-associated fibroblasts (CAFs) and colorectal cancer cells promotes tumor growth and contributes to chemoresistance. In this study, we assessed the sensitivity of a primary CAF cell line, CT5.3hTERT, to standard-of-care and alternative cytotoxic treatments. Paclitaxel (PTX) and acriflavine (ACF) were identified as the most promising molecules to inhibit CAF development. To allow the translational use of both drugs, we developed lipid nanocapsule (LNC) formulations for PTX and ACF. Finally, we mixed CAFs and tumor cell lines in a cocultured spheroid, and the effect of both drugs was investigated by histological analyses. We demonstrated CAF inhibition by LNC-ACF and whole tumor inhibition by LNC-PTX. Altogether, we proposed a new strategy to reduce CAF populations in the colorectal microenvironment that should be tested in vivo.
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19
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Zou Y, Sun Y, Guo B, Wei Y, Xia Y, Huangfu Z, Meng F, van Hest JCM, Yuan J, Zhong Z. α 3β 1 Integrin-Targeting Polymersomal Docetaxel as an Advanced Nanotherapeutic for Nonsmall Cell Lung Cancer Treatment. ACS APPLIED MATERIALS & INTERFACES 2020; 12:14905-14913. [PMID: 32148016 DOI: 10.1021/acsami.0c01069] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Docetaxel (DTX) widely used for treating nonsmall cell lung cancer (NSCLC) patients is associated with dose-limiting side effects, especially neurotoxicity and myelosuppression. Here, we have developed cyclic cNGQGEQc peptide-directed polymersomal docetaxel (cNGQ-PS-DTX) as a targeted and multifunctional formulation for NSCLC. cNGQ-PS-DTX carrying 8.1 wt % DTX had a size of 93 nm, neutral surface charge, high stability, and glutathione-triggered DTX release behavior. Cytotoxicity studies demonstrated a clearly better antitumor activity of cNGQ-PS-DTX in α3β1 integrin overexpressing A549 human lung cancer cells than free DTX and nontargeted PS-DTX. cNGQ-PS-DTX showed a remarkably high tolerability (over 8 times better than free DTX) and slow elimination in mice. Importantly, cNGQ-PS-DTX exhibited greatly improved tumor accumulation and higher suppression of subcutaneous and orthotopic A549 xenografts as compared to PS-DTX and free DTX controls. α3β1 integrin-targeting polymersomal docetaxel emerges as an advanced nanotherapeutic for NSCLC treatment.
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Affiliation(s)
- Yan Zou
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
- International Joint Centre for Biomedical Innovation, School of Life Sciences, Henan University, Jin Ming Avenue, Kaifeng, Henan 475004, P. R. China
| | - Yinping Sun
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Beibei Guo
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Yaohua Wei
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Yifeng Xia
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Zhenyuan Huangfu
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Fenghua Meng
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
| | - Jan C M van Hest
- Eindhoven University of Technology, P.O. Box 513 (STO 3.31), 5600 MB Eindhoven, The Netherlands
| | - Jiandong Yuan
- BrightGene Bio-Medical Technology Company Ltd., Suzhou 215123, PR China
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, College of Chemistry, Chemical Engineering and Materials Science, and State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P. R. China
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20
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Cai H, Dai X, Wang X, Tan P, Gu L, Luo Q, Zheng X, Li Z, Zhu H, Zhang H, Gu Z, Gong Q, Luo K. A Nanostrategy for Efficient Imaging-Guided Antitumor Therapy through a Stimuli-Responsive Branched Polymeric Prodrug. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903243. [PMID: 32195104 PMCID: PMC7080516 DOI: 10.1002/advs.201903243] [Citation(s) in RCA: 127] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/04/2020] [Indexed: 02/05/2023]
Abstract
A stimuli-responsive polymeric prodrug-based nanotheranostic system with imaging agents (cyanine5.5 and gadolinium-chelates) and a therapeutic agent paclitaxel (PTX) is prepared via polymerization and conjugating chemistry. The branched polymeric PTX-Gd-based nanoparticles (BP-PTX-Gd NPs) demonstrate excellent biocompatibility, and high stability under physiological conditions, but they stimuli-responsively degrade and release PTX rapidly in a tumor microenvironment. The in vitro behavior of NPs labeled with fluorescent dyes is effectively monitored, and the NPs display high cytotoxicity to 4T1 cells similar to free PTX by impairing the function of microtubules, downregulating anti-apoptotic protein Bcl-2, and upregulating the expression of Bax, cleaved caspase-3, cleaved caspase-9, cleaved-PARP, and p53 proteins. Great improvement in magnetic resonance imaging (MRI) is demonstrated by these NPs, and MRI accurately maps the temporal change profile of the tumor volume after injection of NPs and the tumor treatment process is also closely correlated with the T 1 values measured from MRI, demonstrating the capability of providing real-time feedback to the chemotherapeutic treatment effectiveness. The imaging-guided chemotherapy to the 4T1 tumor in the mice model achieves an excellent anti-tumor effect. This stimuli-responsive polymeric nano-agent opens a new door for efficient breast cancer treatment under the guidance of fluorescence/MRI.
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Affiliation(s)
- Hao Cai
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Xinghang Dai
- West China School of MedicineSichuan UniversityChengdu610041China
| | - Xiaoming Wang
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Ping Tan
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Lei Gu
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Qiang Luo
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Xiuli Zheng
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Zhiqian Li
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Hongyan Zhu
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Hu Zhang
- Amgen Bioprocessing CentreKeck Graduate InstituteClaremontCA91711USA
| | - Zhongwei Gu
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
- National Engineering Research Center for BiomaterialsSichuan UniversityChengdu610064China
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Kui Luo
- Huaxi MR Research Center (HMRRC)Department of RadiologyFunctional and Molecular Imaging Key Laboratory of Sichuan ProvinceNational Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
- National Engineering Research Center for BiomaterialsSichuan UniversityChengdu610064China
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21
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Liang Y, Zhang J, Tian B, Wu Z, Svirskis D, Han J. A NAG-Guided Nano-Delivery System for Redox- and pH-Triggered Intracellularly Sequential Drug Release in Cancer Cells. Int J Nanomedicine 2020; 15:841-855. [PMID: 32103941 PMCID: PMC7008180 DOI: 10.2147/ijn.s226249] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 12/10/2019] [Indexed: 12/12/2022] Open
Abstract
Aim Sequential treatment with paclitaxel (PTXL) and gemcitabine (GEM) is considered clinically beneficial for non-small-cell lung cancer. This study aimed to investigate the effectiveness of a nano-system capable of sequential release of PTXL and GEM within cancer cells. Methods PTXL-ss-poly(6-O-methacryloyl-d-galactopyranose)-GEM (PTXL-ss-PMAGP-GEM) was designed by conjugating PMAGP with PTXL via disulfide bonds (-ss-), while GEM via succinic anhydride (PTXL:GEM=1:3). An amphiphilic block copolymer N-acetyl-d-glucosamine(NAG)-poly(styrene-alt-maleic anhydride)58-b-polystyrene130 acted as a targeting moiety and emulsifier in formation of nanostructures (NLCs). Results The PTXL-ss-PMAGP-GEM/NAG NLCs (119.6 nm) provided a sequential in vitro release of, first PTXL (redox-triggered), then GEM (pH-triggered). The redox- and pH-sensitive NLCs readily distributed homogenously in the cytoplasm. NAG augmented the uptake of NLCs by the cancer cells and tumor accumulation. PTXL-ss-PMAGP-GEM/NAG NLCs exhibited synergistic cytotoxicity in vitro and strongest antitumor effects in tumor-bearing mice compared to NLCs lacking pH/redox sensitivities or free drug combination. Conclusion This study demonstrated the abilities of PTXL-ss-PMAGP-GEM/NAG NLCs to achieve synergistic antitumor effect by targeted intracellularly sequential drug release.
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Affiliation(s)
- Yan Liang
- School of Pharmacy, Binzhou Medical University, Yantai 264003, Shandong Province, People's Republic of China
| | - Jing Zhang
- School of Pharmacy, Binzhou Medical University, Yantai 264003, Shandong Province, People's Republic of China
| | - Baocheng Tian
- School of Pharmacy, Binzhou Medical University, Yantai 264003, Shandong Province, People's Republic of China
| | - Zimei Wu
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1023, New Zealand
| | - Darren Svirskis
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1023, New Zealand
| | - Jingtian Han
- School of Pharmacy, Binzhou Medical University, Yantai 264003, Shandong Province, People's Republic of China
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22
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Calabrese C, Aprile C, Gruttadauria M, Giacalone F. POSS nanostructures in catalysis. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01407a] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this review we highlight the use of appealing POSS-based nanostructures for both homogeneous and heterogeneous catalytic applications.
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Affiliation(s)
- Carla Calabrese
- Department of Biological
- Chemical and Pharmaceutical Sciences and Technologies
- University of Palermo
- Palermo
- Italy
| | | | - Michelangelo Gruttadauria
- Department of Biological
- Chemical and Pharmaceutical Sciences and Technologies
- University of Palermo
- Palermo
- Italy
| | - Francesco Giacalone
- Department of Biological
- Chemical and Pharmaceutical Sciences and Technologies
- University of Palermo
- Palermo
- Italy
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23
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Liu Y, Zhou Z, Lin X, Xiong X, Zhou R, Zhou M, Huang Y. Enhanced Reactive Oxygen Species Generation by Mitochondria Targeting of Anticancer Drug To Overcome Tumor Multidrug Resistance. Biomacromolecules 2019; 20:3755-3766. [PMID: 31465208 DOI: 10.1021/acs.biomac.9b00800] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
As a major clinical tumor chemotherapeutic burden, multidrug resistance (MDR) is often a result of up-regulation of P-glycoprotein (P-gp), which strongly enhances anticancer drug efflux. The excess mitochondrial reactive oxygen species (ROS) could not only inhibit the function of P-gp through insufficient adenosine triphosphate supply but also cause apoptosis in MDR cells. Here, we designed a mitochondria targeting nanoparticulate system (GNPs-P-Dox-GA) for overcoming MDR through enhanced ROS generation, where increased cellular uptake as well as mitochondria accumulation were both realized by glycyrrhetinic acid (GA). First, doxorubicin was conjugated with GA (GA-Dox) and then grafted onto a N-(2-hydroxypropyl) methacrylamide (HPMA) copolymer backbone via hydrazone bond (P-Dox-GA). The obtained P-Dox-GA was subsequently attached to the surface of gelatin nanoparticles (GNPs). As gelatin is a substrate of tumor extracellular metal matrix protease-2 (MMP2), GNPs-P-Dox-GA nanoparticles could be degraded and release small size P-Dox-GA to facilitate tumor tissue penetration. After P-Dox-GA internalized by tumor cells under GA mediation, Dox-GA detached from HPMA copolymer through hydrolysis of hydrazone bond and then efficiently delivered to mitochondria. Compared to non-GA modified carriers, GNPs-P-Dox-GA exhibited increased cellular uptake nearly 4-fold and mitochondria distribution 8.8-fold, and increased ROS production level nearly 3-fold, significantly decreased efflux rate (55% compared with Dox group) in drug resistant HepG2/ADR cells, and then led to improved in vitro antitumor efficiency in HepG2/ADR cells (IC50 only 19.5% of unmodified ones) as well as exciting in vivo antitumor efficiency on HepG2/ADR heterotopic tumor nude mice (1.75-fold higher tumor growth inhibition rate than free drug).
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Affiliation(s)
- Yuanyuan Liu
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 , People's Republic of China
| | - Zhou Zhou
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 , People's Republic of China
| | - Xi Lin
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 , People's Republic of China
| | - Xiaofeng Xiong
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 , People's Republic of China
| | - Rui Zhou
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 , People's Republic of China
| | - Minglu Zhou
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 , People's Republic of China
| | - Yuan Huang
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 , People's Republic of China
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24
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Dong Z, Bi Y, Cui H, Wang Y, Wang C, Li Y, Jin H, Wang C. AIE Supramolecular Assembly with FRET Effect for Visualizing Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2019; 11:23840-23847. [PMID: 31251019 DOI: 10.1021/acsami.9b04938] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Here, we constructed a nanostructured pH/redox dual-responsive supramolecular drug carrier with both aggregation-induced emission (AIE) and Forster resonance energy transfer (FRET) effects, which enabled selective drug release and monitoring drug delivery and release processes. Taking the hyperbranched polyamide amine (H-PAMAM) with intrinsic AIE effects as the core, poly(ethylene glycol) (PEG) was bridged on its periphery by dithiodipropionic acid. Then, through the host-guest interaction of PEG and α-cyclodextrin, the supramolecular nanoparticles with AIE effects were constructed to load the anticancer drug doxorubicin (DOX). The supramolecular assembly has sufficiently large DOX loading due to the abundant cavities formed by branched structures. The hyperbranched core H-PAMAM has strong fluorescence, and the dynamic track of drug carriers and the dynamic drug release process can be monitored by the AIE and FRET effects between H-PAMAM and DOX, respectively. Furthermore, the introduction of disulfide bonds and the pH sensitivity of H-PAMAM enable the achievement of rapid selective release of loaded DOX at the tumor while remaining stable under normal physiological conditions. In vitro cytotoxicity indicates that the drug-loaded supramolecular assembly has a good therapeutic effect on cancer. In addition, the H-PAMAM core is different from the traditional AIE functional group, which has no conjugated structure, such as a benzene ring, thereby providing better biocompatibility. This technology will have broad applications as a new drug delivery system.
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Affiliation(s)
- Zhenzhen Dong
- School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Yanze Bi
- School of Materials Science and Engineering , Beihang University , Beijing 100083 , China
| | - Hanrui Cui
- School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Yandong Wang
- School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Chunlei Wang
- School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Yan Li
- School of Materials Science and Engineering , Beihang University , Beijing 100083 , China
| | - Hongwei Jin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
| | - Caiqi Wang
- School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
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25
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Lee J, Jeong L, Jung E, Ko C, Seon S, Noh J, Lee D. Thrombus targeting aspirin particles for near infrared imaging and on-demand therapy of thrombotic vascular diseases. J Control Release 2019; 304:164-172. [DOI: 10.1016/j.jconrel.2019.05.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 04/10/2019] [Accepted: 05/06/2019] [Indexed: 12/17/2022]
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Cell Internalization in Fluidic Culture Conditions Is Improved When Microparticles Are Specifically Targeted to the Human Epidermal Growth Factor Receptor 2 (HER2). Pharmaceutics 2019; 11:pharmaceutics11040177. [PMID: 30978948 PMCID: PMC6523092 DOI: 10.3390/pharmaceutics11040177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/08/2019] [Accepted: 04/08/2019] [Indexed: 11/24/2022] Open
Abstract
Purpose: To determine if the specific targeting of microparticles improves their internalization by cells under fluidic conditions. Methods: Two isogenic breast epithelial cell lines, one overexpressing the Human Epidermal Growth Factor Receptor 2 (HER2) oncogene (D492HER2) and highly tumorigenic and the other expressing HER2 at much lower levels and non-tumorigenic (D492), were cultured in the presence of polystyrene microparticles of 1 µm in diameter, biofunctionalized with either a specific anti-HER2 antibody or a non-specific secondary antibody. Mono- and cocultures of both cell lines in static and fluidic conditions were performed, and the cells with internalized microparticles were scored. Results: Globally, the D492 cell line showed a higher endocytic capacity than the D492HER2 cell line. Microparticles that were functionalized with the anti-HER2 antibody were internalized by a higher percentage of cells than microparticles functionalized with the non-specific secondary antibody. Although internalization was reduced in fluidic culture conditions in comparison with static conditions, the increase in the internalization of microparticles biofunctionalized with the anti-HER2 antibody was higher for the cell line overexpressing HER2. Conclusion: The biofunctionalization of microparticles with a specific targeting molecule remarkably increases their internalization by cells in fluidic culture conditions (simulating the blood stream). This result emphasizes the importance of targeting for future in vivo delivery of drugs and bioactive molecules through microparticles.
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Glass SB, Gonzalez-Fajardo L, Beringhs AO, Lu X. Redox Potential and ROS-Mediated Nanomedicines for Improving Cancer Therapy. Antioxid Redox Signal 2019; 30:747-761. [PMID: 28990403 DOI: 10.1089/ars.2017.7370] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
SIGNIFICANCE The overabundance of reactive oxygen species (ROS) and antioxidants in cancer cells represents a challenge for therapeutic intervention, while also providing an opportunity for the development of new strategies to improve clinical therapeutic outcomes. Recent Advances: Nanotechnology has advanced tremendously in recent decades and now offers many potential opportunities to leverage altered redox status to improve conventional therapies. Highly tunable nanoparticle delivery systems have shown great promise for improving the following: (i) chemotherapy via selective redox-sensitive drug release in tumor cells and limited systemic toxicity; (ii) photodynamic therapy via enhancing photoactivation and/or ROS production; and (iii) radiation therapy via enhancing ROS production. Great progress has also been made regarding novel nanoparticle-mediated therapies to enhance tumor cell death via ROS generation and angiogenic inhibition. CRITICAL ISSUES Current anticancer therapies are limited by systemic side effects and resistance. The inherent heterogeneity and hypoxic status of solid tumors impose significant barriers for even the most rationally designed nanoparticle systems. In addition, few comprehensive biodistribution and toxicity evaluations exist, and clinical efficacy remains to be established. The practicality of many nanoparticle systems is compromised by variable in vivo responses and scale-up difficulties due to complicated chemistry and prohibitive manufacturing costs. FUTURE DIRECTIONS As nanoparticle design continues to advance, improved therapeutic efficacy will likely follow. Actively targeted systems may improve distribution specificity but more positive clinical demonstrations are needed. Further investigation into systemic and intracellular distribution as well as toxicity will improve understanding of how these nanoparticle systems can be applied to improve existing therapies.
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Affiliation(s)
- Sterling B Glass
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut
| | | | | | - Xiuling Lu
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut
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28
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Dong F, Lu L, Ha C. Silsesquioxane‐Containing Hybrid Nanomaterials: Fascinating Platforms for Advanced Applications. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201800324] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fuping Dong
- Department of Polymer Materials and EngineeringCollege of Materials and MetallurgyGuizhou University Guiyang 550025 China
| | - Liangyu Lu
- Department of Polymer Materials and EngineeringCollege of Materials and MetallurgyGuizhou University Guiyang 550025 China
| | - Chang‐Sik Ha
- Department of Polymer Science and EngineeringPusan National University Busan 46241 Republic of Korea
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29
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Mo CE, Chai MH, Zhang LP, Ran RX, Huang YP, Liu ZS. Floating molecularly imprinted polymers based on liquid crystalline and polyhedral oligomeric silsesquioxanes for capecitabine sustained release. Int J Pharm 2018; 557:293-303. [PMID: 30599225 DOI: 10.1016/j.ijpharm.2018.12.070] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 11/26/2018] [Accepted: 12/13/2018] [Indexed: 01/16/2023]
Abstract
Molecularly imprinted polymers (MIPs) have drawn extensive attention as carriers on drug delivery. However, most of MIPs suffer from insufficient drug loading capacity, burst release of drugs and/or low bioavailability. To solve the issues, this study designed an imprinted material with superior floating nature for oral drug delivery system of capecitabine (CAP) rationally. The MIPs was synthesized in the presence of 4-methylphenyl dicyclohexyl ethylene (liquid crystalline, LC) and polyhedral oligomeric silsesquioxanes (POSS) via polymerization reaction. The LC-POSS MIPs had extended release of the template molecules over 13.4 h with entrapment efficiency of 20.53%, diffusion coefficient of 2.83 × 10-11 cm2 s-1, and diffusion exponent of 0.84. Pharmacokinetic studies further revealed the prolong release and high relative bioavailability of CAP in vivo of rats, showing the effective floating effect of the LC-POSS MIPs. The in vivo images revealed visually that the gastroretentive time of the LC-POSS MIPs was longer than non-LC-POSS imprinted polymers. The physical characteristics of the polymers were also characterized by nitrogen adsorption experiment, scanning electron microscopy, thermogravimetric analysis and differential scanning calorimetry analysis. As a conclusion, the LC-POSS MIPs can be used as an eligible CAP carrier and might hold great potential in clinical applications for sustained release drug.
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Affiliation(s)
- Chun-E Mo
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Mei-Hong Chai
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Li-Ping Zhang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Rui-Xue Ran
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Yan-Ping Huang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.
| | - Zhao-Sheng Liu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.
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Membrane reorganization after photochemical internalization to release transferrin-biofunctionalized polystyrene microparticles. Sci Rep 2018; 8:17617. [PMID: 30514907 PMCID: PMC6279785 DOI: 10.1038/s41598-018-35913-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 11/09/2018] [Indexed: 01/06/2023] Open
Abstract
Therapeutic drug carriers can drive their cargo to their target cells. However, an obstacle is usually the entrapment of the drug inside the endolysosomal compartment, which physically impedes its actuation by the impossibility of reaching its molecular site of action. To overcome this hurdle, photochemical internalization (PCI) has been proposed, but the extent of PCI-induced membrane disruption and its capability to allow the release of microparticles is unknown. The aim of the present study was to determine if PCI allows the release of microparticles from the endolysosomal compartment to the cytosol and to analyze at the ultrastructural level the effect of PCI on the membrane surrounding the particles. Confocal microscope allowed us to detect that endolysosomal membranes suffered some disruption after PCI, evidenced by the diffusion of soluble transferrin from the endolysosomes to the cytosol and by a decrease of LAMP1-microparticles co-localization. Transmission electron microscopy (TEM) showed a decrease in the number of well-defined membranes around microparticles after PCI, and scanning TEM combined with energy dispersive x-ray revealed an increase in the width of endolysosomal membranes after treatment. These results suggest that endolysosomal membranes suffered an ultrastructure alteration after PCI, enough to liberate soluble transferrin but not the entire microparticles.
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31
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Chi H, Wang M, Xiao Y, Wang F, K S J. Self-Assembly and Applications of Amphiphilic Hybrid POSS Copolymers. Molecules 2018; 23:E2481. [PMID: 30262758 PMCID: PMC6222655 DOI: 10.3390/molecules23102481] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 09/24/2018] [Accepted: 09/25/2018] [Indexed: 01/22/2023] Open
Abstract
Understanding the mechanism of molecular self-assembly to form well-organized nanostructures is essential in the field of supramolecular chemistry. Particularly, amphiphilic copolymers incorporated with polyhedral oligomeric silsesquioxanes (POSSs) have been one of the most promising materials in material science, engineering, and biomedical fields. In this review, new ideas and research works which have been carried out over the last several years in this relatively new area with a main focus on their mechanism in self-assembly and applications are discussed. In addition, insights into the unique role of POSSs in synthesis, microphase separation, and confined size were encompassed. Finally, perspectives and challenges related to the further advancement of POSS-based amphiphilics are discussed, followed by the proposed design considerations to address the challenges that we may face in the future.
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Affiliation(s)
- Hong Chi
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry of Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Mingyue Wang
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry of Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Yiting Xiao
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry of Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Fuke Wang
- Polymeric Materials Department, Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634, Singapore.
| | - Joshy K S
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686 560, Kerala, India.
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32
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Improved anticancer efficacy of doxorubicin mediated by human-derived cell-penetrating peptide dNP2. Int J Pharm 2018; 551:14-22. [PMID: 30205127 DOI: 10.1016/j.ijpharm.2018.09.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 08/29/2018] [Accepted: 09/07/2018] [Indexed: 12/24/2022]
Abstract
Although cell penetrating peptides (CPPs) have been extensively studied as an approach to deliver anti-cancer drugs into the tumor cells for the last 30 years, no FDA-approved CPP-based drugs are available, implying that the existing CPPs may have less efficiency in human or have side effects such as toxicity. Herein, we established a tumor targeting drug delivery system by attaching a human-derived cell-penetrating peptide dNP2 (CKIKKVKKKGRKKIKKVKKKGRK) to N-(2-hydroxypropyl)-methacrylamide (HPMA) copolymer doxorubicin conjugates. Firstly, in vitro cytotoxicity of free dNP2 peptide and dNP2-modified blank HPMA copolymer were examined. A classic CPP-R8 (CRRRRRRRR) was chosen for comparison and the results showed that 200 μM free R8 reduced cell viability to 68.4% but dNP2 did not induce any toxicity at the same concentration. After conjugation to HPMA copolymer, a similar trend was also observed which indicated the excellent biocompatibility of dNP2. Next, effect of dNP2 modification on cellular uptake, DNA damage, apoptosis and anticancer activity of HPMA copolymer doxorubicin conjugates were evaluated. It was excited that dNP2 modified HPMA copolymer (P-(dNP2)-DOX) not only had a higher uptake by HeLa cell compared with non-modified copolymer (P-DOX) but resulted in an enhanced drug distribution in nuclei. Furthermore, P-(dNP2)-DOX exhibited greater DNA damage ability (10.5 folds higher than P-DOX) in comet assay and induced more apoptosis cells (46.0%). P-(dNP2)-DOX also showed a stronger cell cytotoxicity (3-fold to P-DOX) as well as in 3D tumor spheroid assay (inhibition rate 78%). All these results suggested that the human-derived cell-penetrating peptide dNP2 could facilitate tumor nuclear-accumulation of anti-cancer drugs and improve anticancer efficacy. More importantly, dNP2 has less toxicity compared with classic CPP-R8 thus shows the potential for the clinic cancer therapy.
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Lou S, Zhao Z, Dezort M, Lohneis T, Zhang C. Multifunctional Nanosystem for Targeted and Controlled Delivery of Multiple Chemotherapeutic Agents for the Treatment of Drug-Resistant Breast Cancer. ACS OMEGA 2018; 3:9210-9219. [PMID: 30197996 PMCID: PMC6120734 DOI: 10.1021/acsomega.8b00949] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 07/31/2018] [Indexed: 05/02/2023]
Abstract
By targeting CD44 receptors, inhibiting multidrug resistance (MDR), controlling drug release, and synergistically inhibiting tumor growth, a multilayered nanosystem was developed to serve as a multifunctional platform for the treatment of drug-resistant breast cancers. The multilayer nanosystem is composed of a poly(lactic-co-glycolic acid) core, a liposome second layer, and a chitosan third layer. The chitosan-multilayered nanoparticles (Ch-MLNPs) can co-deliver three chemotherapeutic agents: doxorubicin (DOX), paclitaxel (PTX), and silybin. The three drugs are released from the multilayered NPs in a controlled and sequential manner upon internalization and localization in the cellular endosomes. The presence of a chitosan layer allows the nanosystem to target a well-characterized MDR breast cancer biomarker, the CD44s receptor. In vitro cytotoxicity study showed that the nanosystem loaded with triple drugs, DOX-PTX-silybin, resulted in better antitumor efficacy than the single-drug or dual-drug nano-formulations. Likely attributed to the MDR-inhibition effect of silybin, the co-delivered DOX and PTX exhibited a better synergistic effect on MDR breast cancer cells than on non-MDR breast cancer cells. The in vivo study also showed that the multilayered nanosystem promoted MDR inhibition and synergy between chemotherapeutic agents, leading to significant tumor reduction in a xenograft animal model. Ch-MLNPs reduced the tumor volume by fivefold compared to that of the control group without causing overt cytotoxicity.
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Affiliation(s)
- Song Lou
- Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States
| | - Zongmin Zhao
- Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States
| | - Micah Dezort
- Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States
| | - Taylor Lohneis
- Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States
| | - Chenming Zhang
- Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States
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Hao X, Li Q, Ali H, Zaidi SSA, Guo J, Ren X, Shi C, Xia S, Zhang W, Feng Y. POSS-cored and peptide functionalized ternary gene delivery systems with enhanced endosomal escape ability for efficient intracellular delivery of plasmid DNA. J Mater Chem B 2018; 6:4251-4263. [PMID: 32254599 DOI: 10.1039/c8tb00786a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Biocompatibility, stability and high efficiency profiles are critical points for promoting the practical applications of gene delivery systems. The incorporation of cell-penetrating peptides (CPPs), REDV, and a nuclear localization signal (NLS) peptide sequence has been considered to be a promising strategy for developing efficient gene carriers to transfect vascular endothelial cells (ECs). However, these integrated multifunctional peptide carriers are usually limited by their inefficient targeting function and weak endosomal escape ability. Aiming to develop more efficient gene carriers, the integrated multifunctional REDV-G-TAT-G-NLS-C sequence was conjugated to polyhedral oligomeric silsesquioxane (POSS) by heterobifunctional poly(ethylene glycol) in the current study. This star-shaped polymer carrier complexed with the pZNF580 plasmid to form gene complexes, and then the histidine-rich peptide of REDV-TAT-NLS-H12 (TP-H12) was incorporated into their surface to obtain ternary gene delivery systems with enhanced endosomal escape ability. These ternary gene delivery systems exhibited low cytotoxicity towards ECs and possessed high REDV-mediated cellular uptake, excellent internalization efficiency, rapid endosomal escape and high nucleus translocation capacity. The endosomal escape of the ternary complexes was improved due to the pH buffering capacity of the histidine residue in TP-H12 and the optimized macropinocytosis internalization pathway. Moreover, these CPP-based ternary gene delivery systems have high gene delivery efficiency and could improve the migration of ECs as demonstrated by gene expression and transwell assay. These systems may serve as a promising candidate for gene delivery and transfection in ECs, which is advantageous for EC migration and endothelialization on the biomaterial surface.
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Affiliation(s)
- Xuefang Hao
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China.
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Tao J, Tan Z, Diao L, Ji Z, Zhu J, Chen W, Hu Y. Co-delivery of dihydroartemisinin and docetaxel in pH-sensitive nanoparticles for treating metastatic breast cancer via the NF-κB/MMP-2 signal pathway. RSC Adv 2018; 8:21735-21744. [PMID: 35541720 PMCID: PMC9080987 DOI: 10.1039/c8ra02833h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 05/28/2018] [Indexed: 01/01/2023] Open
Abstract
Metastasis is a major barrier in cancer chemotherapy. Prolonged circulation and rapid, specific intracellular drug release are two main goals in the development of nanoscale drug delivery systems to treat metastatic breast cancer. In this study, we investigated the anti-metastasis effect of docetaxel (DTX) in combination with dihydroartemisinin (DHA) in metastatic breast cancer 4T1 cells. We synthesized a pH-sensitive material 4-arm-PEG-DTX with a hydrazone bond and used it to construct nanoparticles that co-deliver DTX and DHA (D/D NPs). The D/D NPs had a mean size of 142.5 nm and approximately neutral zeta potential. The pH-sensitive nanoparticles allowed acid-triggered drug release at the tumor site, showing excellent cytotoxicity (IC50 = 7.0 μg mL-1), cell cycle arrest and suppression of cell migration and invasion. The mechanisms underlying the anti-metastasis effect of the D/D NPs involved downregulation of the expression of p-AKT, NF-κB and MMP-2. Therefore, D/D NPs represent a new nanoscale drug delivery system for treating metastatic breast cancer, responding to the acidic tumor microenvironment to release the chemotherapeutic drugs.
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Affiliation(s)
- Jin Tao
- Zhejiang Pharmaceutical College No. 888, East Section, Yinxian Main Road, The Zone of Higher Education Ningbo Zhejiang China
| | - Zeng Tan
- Zhejiang Pharmaceutical College No. 888, East Section, Yinxian Main Road, The Zone of Higher Education Ningbo Zhejiang China
| | - Lu Diao
- Zhejiang Pharmaceutical College No. 888, East Section, Yinxian Main Road, The Zone of Higher Education Ningbo Zhejiang China
- School of Pharmaceutical Sciences, Wenzhou Medical University Wenzhou Zhejiang China
| | - Zhonghua Ji
- Zhejiang Pharmaceutical College No. 888, East Section, Yinxian Main Road, The Zone of Higher Education Ningbo Zhejiang China
| | - Jiahuan Zhu
- Zhejiang Pharmaceutical College No. 888, East Section, Yinxian Main Road, The Zone of Higher Education Ningbo Zhejiang China
| | - Wei Chen
- Zhejiang Pharmaceutical College No. 888, East Section, Yinxian Main Road, The Zone of Higher Education Ningbo Zhejiang China
| | - Ying Hu
- Zhejiang Pharmaceutical College No. 888, East Section, Yinxian Main Road, The Zone of Higher Education Ningbo Zhejiang China
- School of Pharmaceutical Sciences, Wenzhou Medical University Wenzhou Zhejiang China
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Kazeminava F, Arsalani N, Akbari A. POSS nanocrosslinked poly (ethylene glycol) hydrogel as hybrid material support for silver nanocatalyst. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4359] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fahimeh Kazeminava
- Research Laboratory of Polymer, Department of Organic and Biochemistry, Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Nasser Arsalani
- Research Laboratory of Polymer, Department of Organic and Biochemistry, Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Ali Akbari
- Faculty of Engineering, Department of Polymer Science and Engineering; University of Bonab; PO Box 55517-61167 Bonab Iran
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Luo Q, Xiao X, Dai X, Duan Z, Pan D, Zhu H, Li X, Sun L, Luo K, Gong Q. Cross-Linked and Biodegradable Polymeric System as a Safe Magnetic Resonance Imaging Contrast Agent. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1575-1588. [PMID: 29260844 DOI: 10.1021/acsami.7b16345] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Owing to the low efficacy of clinically used small-molecule gadolinium (Gd)-based magnetic resonance imaging (MRI) agents, we designed and explored biodegradable macromolecular conjugates as MRI contrast agents. The linear polymeric structure and core-cross-linked formulation possessed different characteristics and features, so we prepared and comparatively studied the two kinds of Gd-based N-(2-hydroxypropyl) methacrylamide (HPMA) polymeric systems (the core-cross-linked pHPMA-DOTA-Gd and the linear one) using the clinical agent diethylene-triamine pentaacetic acid-Gd(III) (DTPA-Gd) as a control. This study was aimed to find the optimal polymeric formulation as a biocompatible and efficient MRI contrast agent. The high molecular weight (MW, 181 kDa) and core-cross-linked copolymer was obtained via the cross-linked block linear copolymer and could be degraded to low-MW segments (29 kDa) in the presence of glutathione (GSH) and cleaned from the body. Both core-cross-linked and linear pHPMA-DOTA-Gd copolymers displayed 2-3-fold increased relaxivity (r1 value) than that of DTPA-Gd. Animal studies demonstrated that two kinds of macromolecular systems led to much longer blood circulation time, higher tumor accumulation, and much higher signal intensity compared with the linear and clinical ones. Finally, in vivo and in vitro toxicity studies indicated that the two macromolecular agents had great biocompatibility. Therefore, we performed preliminary but important studies on the Gd-based HPMA polymeric systems as biocompatible and efficient MRI contrast agents and found that the biodegradable core-cross-linked pHPMA-DOTA-Gd copolymer might have greater benefits for the foreground.
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Affiliation(s)
- Qiang Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, ‡Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, and §West China School of Medicine, Sichuan University , Chengdu 610041, Sichuan, China
| | - Xueyang Xiao
- Huaxi MR Research Center (HMRRC), Department of Radiology, ‡Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, and §West China School of Medicine, Sichuan University , Chengdu 610041, Sichuan, China
| | - Xinghang Dai
- Huaxi MR Research Center (HMRRC), Department of Radiology, ‡Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, and §West China School of Medicine, Sichuan University , Chengdu 610041, Sichuan, China
| | - Zhenyu Duan
- Huaxi MR Research Center (HMRRC), Department of Radiology, ‡Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, and §West China School of Medicine, Sichuan University , Chengdu 610041, Sichuan, China
| | - Dayi Pan
- Huaxi MR Research Center (HMRRC), Department of Radiology, ‡Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, and §West China School of Medicine, Sichuan University , Chengdu 610041, Sichuan, China
| | - Hongyan Zhu
- Huaxi MR Research Center (HMRRC), Department of Radiology, ‡Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, and §West China School of Medicine, Sichuan University , Chengdu 610041, Sichuan, China
| | - Xue Li
- Huaxi MR Research Center (HMRRC), Department of Radiology, ‡Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, and §West China School of Medicine, Sichuan University , Chengdu 610041, Sichuan, China
| | - Ling Sun
- Huaxi MR Research Center (HMRRC), Department of Radiology, ‡Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, and §West China School of Medicine, Sichuan University , Chengdu 610041, Sichuan, China
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, ‡Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, and §West China School of Medicine, Sichuan University , Chengdu 610041, Sichuan, China
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, ‡Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, and §West China School of Medicine, Sichuan University , Chengdu 610041, Sichuan, China
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Shi J, Su Y, Liu W, Chang J, Zhang Z. A nanoliposome-based photoactivable drug delivery system for enhanced cancer therapy and overcoming treatment resistance. Int J Nanomedicine 2017; 12:8257-8275. [PMID: 29180864 PMCID: PMC5694201 DOI: 10.2147/ijn.s143776] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Recently, stimuli-responsive drug delivery systems (DDSs) with high spatial/temporal resolution bring many benefits to cancer treatment. However, cancer cells always develop ways to resist and evade treatment, ultimately limit the treatment efficacy of the DDSs. Here, we introduce photo-activated nanoliposomes (PNLs) that impart light-induced cytotoxicity and reversal of drug resistance in synchrony with a photoinitiated and rapid release of antitumor drug. The PNLs consist of a nanoliposome doped with a photosensitizer (hematoporphyrin monomethyl ether [HMME]) in the lipid bilayer and an antitumor drug doxorubicin (DOX) encapsulated inside. PNLs have several distinctive capabilities: 1) carrying high loadings of DOX and HMME and releasing the payloads in a photo-cleavage manner with high spatial/temporal resolution at the site of actions via photocatalysis; 2) reducing drug efflux in MCF-7/multidrug resistance cells via decreasing the level of P-glycoprotein induced by photodynamic therapy (PDT); 3) accumulating in tumor site taking advantage of the enhanced permeability and retention effect; and 4) combining effective chemotherapy and PDT to exert much enhanced anticancer effect and achieving significant tumor regression in a drug-resistant tumor model with little side effects.
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Affiliation(s)
- Jinjin Shi
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou.,Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou, People's Republic of China
| | - Yu Su
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou
| | - Wei Liu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou, People's Republic of China
| | - Zhenzhong Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou.,Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou, People's Republic of China
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Zhu YX, Jia HR, Chen Z, Wu FG. Photosensitizer (PS)/polyhedral oligomeric silsesquioxane (POSS)-crosslinked nanohybrids for enhanced imaging-guided photodynamic cancer therapy. NANOSCALE 2017; 9:12874-12884. [PMID: 28686273 DOI: 10.1039/c7nr02279d] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Photodynamic therapy (PDT) has drawn extensive attention as a promising cancer treatment modality. However, most PDT nanoagents suffer from insufficient drug loading capacity, a severe self-quenching effect, premature release of drugs and/or potential toxicity. Herein, we rationally designed an inorganic-organic nanohybrid with high drug loading capacity and superior chemical stability for enhanced PDT. Polyhedral oligomeric silsesquioxane (POSS), an amine-containing cage-shaped building block, was crosslinked with chlorin e6 (Ce6), a carboxyl-containing photosensitizer, via the amine-carboxyl reaction. Polyethylene glycol (PEG) polymers were further modified on the surface of the nanoparticle to improve the aqueous dispersibility and prolong the circulation time of the final nanoconstruct (POSS-Ce6-PEG). The as-prepared POSS-Ce6-PEG has a considerably high loading rate of Ce6 (19.8 wt%) with desirable fluorescence emission and singlet oxygen generation. Besides, in vitro experiments revealed that the nanoagent exhibited enhanced cellular uptake and a preferred intracellular accumulation within mitochondria and the endoplasmic reticulum, resulting in high anticancer efficiency under light irradiation. Furthermore, in vivo imaging-guided PDT was also successfully achieved, showing the effective tumor targeting and ablation ability of POSS-Ce6-PEG. More importantly, the nanoagent possesses negligible dark cytotoxicity and systemic side effects. Therefore, POSS-Ce6-PEG as an eligible PDT theranostic agent holds great potential in clinical applications.
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Affiliation(s)
- Ya-Xuan Zhu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China.
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40
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Yang DP, Oo MNNL, Deen GR, Li Z, Loh XJ. Nano-Star-Shaped Polymers for Drug Delivery Applications. Macromol Rapid Commun 2017; 38. [PMID: 28895248 DOI: 10.1002/marc.201700410] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 06/28/2017] [Indexed: 12/19/2022]
Abstract
With the advancement of polymer engineering, complex star-shaped polymer architectures can be synthesized with ease, bringing about a host of unique properties and applications. The polymer arms can be functionalized with different chemical groups to fine-tune the response behavior or be endowed with targeting ligands or stimuli responsive moieties to control its physicochemical behavior and self-organization in solution. Rheological properties of these solutions can be modulated, which also facilitates the control of the diffusion of the drug from these star-based nanocarriers. However, these star-shaped polymers designed for drug delivery are still in a very early stage of development. Due to the sheer diversity of macromolecules that can take on the star architectures and the various combinations of functional groups that can be cross-linked together, there remain many structure-property relationships which have yet to be fully established. This review aims to provide an introductory perspective on the basic synthetic methods of star-shaped polymers, the properties which can be controlled by the unique architecture, and also recent advances in drug delivery applications related to these star candidates.
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Affiliation(s)
- Da-Peng Yang
- College of Chemical Engineering & Materials Science, Quanzhou Normal University, Quanzhou, 362000, China
| | - Ma Nwe Nwe Linn Oo
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive Singapore, Singapore, 637459, Singapore
| | - Gulam Roshan Deen
- Soft Materials Laboratory, Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, Singapore, 637459, Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore.,Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Singapore
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41
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Gao YE, Ma X, Hou M, Bai S, Xue P, Kang Y, Xu Z. Highly cell-penetrating and ultra-pH-responsive nanoplatform for controlled drug release and enhanced tumor therapy. Colloids Surf B Biointerfaces 2017; 159:484-492. [PMID: 28841498 DOI: 10.1016/j.colsurfb.2017.08.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/04/2017] [Accepted: 08/10/2017] [Indexed: 01/03/2023]
Abstract
A stimuli-triggered drug release strategy could considerably reduce side effects while improving the bioavailability of chemotherapeutics. Here, we report that a series of ultra-pH-responsive copolymers are highly efficient drug delivery systems for near-infrared (NIR) imaging and controlled drug release. These polymers self-assemble into nano-sized micelles due to their amphipathic structure and deliver hydrophobic drugs (maximum drug loading rate ∼10wt%) into tumor cells via a controlled and pH-triggered modality. By altering the proportion of hydrophilic and hydrophobic chains, the drug loading rate and the in vitro drug release efficiency can be regulated. Moreover, the drug-loaded micelles with optimized compositions exhibited excellent antitumor efficacy in HeLa and MCF-7 cells, while the blank micelles had minimal cytotoxicity. Cellular uptake experiments further indicated that the ultra-pH-responsive micelles could be rapidly internalized in the tumor cells. This study demonstrated the strong potential of the ultra-pH-responsive platform as a universal carrier for the delivery of anticancer drugs to maximize their therapeutic effect.
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Affiliation(s)
- Yong-E Gao
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing 400715, China
| | - Xiaoqian Ma
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing 400715, China
| | - Meili Hou
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing 400715, China
| | - Shuang Bai
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing 400715, China
| | - Peng Xue
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing 400715, China
| | - Yuejun Kang
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing 400715, China.
| | - Zhigang Xu
- Institute for Clean Energy and Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Chongqing 400715, China; Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies, Chongqing 400715, China.
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Zhang P, Zhang Z, Jiang X, Rui L, Gao Y, Zhang W. Unimolecular micelles from POSS-based star-shaped block copolymers for photodynamic therapy. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.063] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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43
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Wang J, Sun J, Zhou J, Jin K, Fang Q. Fluorinated and Thermo-Cross-Linked Polyhedral Oligomeric Silsesquioxanes: New Organic-Inorganic Hybrid Materials for High-Performance Dielectric Application. ACS APPLIED MATERIALS & INTERFACES 2017; 9:12782-12790. [PMID: 28332816 DOI: 10.1021/acsami.7b01415] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A fluorinated and thermo-cross-linked polyhedral oligomeric silsesquioxane (POSS) has been successfully synthesized by thermal polymerization of a fluorinated POSS monomer having an inorganic silsesquioxane core and organic side chains bearing thermo-cross-linkable trifluorovinyl ether groups. This new inorganic-organic hybrid polymer shows high thermostability with a 5 wt % loss temperature of 436 °C, as well as good transparency (a sheet with an average thickness of 1.5 mm shows high transmittance of 92% varying from 400 to 1100 nm). Moreover, the polymer exhibits both low dielectric constant (<2.56) and low dissipation factor (<3.1 × 10-3) in a wide range of frequencies from 40 Hz to 30 MHz even at a high frequency of 5 GHz. The polymer also shows low water uptake (<0.04%) and low Dk (near 2.63) after immersing it in water at room temperature for 3 days. These data imply that this polymer is very suitable to be utilized as a high-performance dielectric material for fabrication of high-frequency printed circuit boards or encapsulation resins for integrated circuit dies in the microelectronic industry. Furthermore, this work also provides a route for the preparation of fluorinated POSS-based polymers.
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Affiliation(s)
- Jiajia Wang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, P. R. China
| | - Jing Sun
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, P. R. China
| | - Junfeng Zhou
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, P. R. China
| | - Kaikai Jin
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, P. R. China
| | - Qiang Fang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, P. R. China
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44
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Duan Z, Zhang Y, Zhu H, Sun L, Cai H, Li B, Gong Q, Gu Z, Luo K. Stimuli-Sensitive Biodegradable and Amphiphilic Block Copolymer-Gemcitabine Conjugates Self-Assemble into a Nanoscale Vehicle for Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3474-3486. [PMID: 28029039 DOI: 10.1021/acsami.6b15232] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The availability and the stability of current anticancer agents, particularly water-insoluble drugs, are still far from satisfactory. A widely used anticancer drug, gemcitabine (GEM), is so poorly stable in circulation that some polymeric drug-delivery systems have been under development for some time to improve its therapeutic index. Herein, we designed, prepared, and characterized a biodegradable amphiphilic block N-(2-hydroxypropyl) methacrylamide (HPMA) copolymer-GEM conjugate-based nanoscale and stimuli-sensitive drug-delivery vehicle. An enzyme-sensitive oligopeptide sequence glycylphenylalanylleucylglycine (GFLG) was introduced to the main chain with hydrophilic and hydrophobic blocks via the reversible addition-fragmentation chain transfer (RAFT) polymerization. Likewise, GEM was conjugated to the copolymer via the enzyme-sensitive peptide GFLG, producing a high molecular weight (MW) product (90 kDa) that can be degraded into smaller MW segments (<50 kDa), and ensuring potential rapid site-specific release and stability in vivo. The amphiphilic copolymer-GEM conjugate can self-assemble into compact nanoparticles. NIR fluorescent images demonstrated that the conjugate-based nanoparticles could accumulate and be retained within tumors, resulting in significant increased antitumor efficacy compared to free GEM. The conjugate was not toxic to organs of the mice as measured by body weight reductions and histological analysis. In summary, this biodegradable amphiphilic block HPMA copolymer-gemcitabine conjugate has the potential to be a stimuli-sensitive and nanoscale drug-delivery vehicle.
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Affiliation(s)
- Zhenyu Duan
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
| | - Yanhong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
| | | | | | - Hao Cai
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
| | | | | | - Zhongwei Gu
- National Engineering Research Center for Biomaterials, Sichuan University , Chengdu 610064, China
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45
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Liu M, Du H, Zhang W, Zhai G. Internal stimuli-responsive nanocarriers for drug delivery: Design strategies and applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:1267-1280. [DOI: 10.1016/j.msec.2016.11.030] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 10/26/2016] [Accepted: 11/08/2016] [Indexed: 11/29/2022]
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46
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Yang Q, Wu L, Li L, Zhou Z, Huang Y. Subcellular co-delivery of two different site-oriented payloads for tumor therapy. NANOSCALE 2017; 9:1547-1558. [PMID: 28067924 DOI: 10.1039/c6nr08200a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Co-delivery of multiple agents via nanocarriers is of great interest in cancer therapy, but subcellular delivery to the corresponding site of action remains challenging. Here we report a smart nanovehicle which enables two different site-oriented payloads to reach their targeted organelles based on stimulus-responsive release and nucleus-targeted modification. First, all trans retinoic acid (RA) conjugated camptothecin (RA-CPT) was loaded in a polyhedral oligomericsilsesquioxane (POSS)-based core; docetaxel (DTX) was grafted on N-(2-hydroxypropyl) methacrylamide (HPMA) copolymers. The POSS core grafted with semitelechelic HPMA copolymers then self-assembled into micelles. Once internalized into the cell, the two drugs were unleashed environment-responsively, and nuclear targeted RA remarkably facilitated the nuclear transport of CPT. Compared with single drug-loaded micelles, the dual drug-loaded platform showed superior synergic cytotoxicity, which was further strengthened by the involvement of RA. The ability to induce DNA damage and apoptosis was also enhanced by nucleus-targeted modification. Finally, dual drug-loaded micelles exhibited much better in vivo tumor inhibition (87.1%) and less systemic toxicity than the combination of single drug-loaded systems or the dual drug-loaded micelles without RA. Therefore, our study provides a novel "one platform, two targets" strategy in combinatory anti-cancer therapy.
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Affiliation(s)
- Qingqing Yang
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, P.R. China.
| | - Lei Wu
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, P.R. China.
| | - Lian Li
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, P.R. China.
| | - Zhou Zhou
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, P.R. China.
| | - Yuan Huang
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, P.R. China.
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Li L, Sun W, Li L, Liu Y, Wu L, Wang F, Zhou Z, Zhang Z, Huang Y. A pH-responsive sequential-disassembly nanohybrid for mitochondrial targeting. NANOSCALE 2017; 9:314-325. [PMID: 27910990 DOI: 10.1039/c6nr07004c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cationic materials have been reported as promising tools for targeting to mitochondria which are the "power houses" and "metabolic garbage keepers" of cells. However, their positive nature also restricts their in vivo application due to the quick clearance. Herein, we fabricated a nanohybrid consisting of the pH-responsive N-(2-hydroxypropyl)methacrylamide (HPMA) co-polymer (R-P) shells and positive mesoporous silica nanoparticle cores via electrostatic interaction. The anticancer drug, docetaxel (DTX), was encapsulated in the positive MSN cores (MSN-DTX). Once concealed by the anionic R-P shield, the assembled nanohybrid R-P@MSN-DTX will achieve prolonged blood circulation thereby leading to an enhanced EPR effect. At mildly acidic tumor environmental pH, first-stage charge reversion took place due to the hydrolysis of the amide bond on HPMA co-polymers. The de-attachment of the HPMA co-polymer occurred because of the positive charge repulsion and partial exposure of the positively charged MSN core promoted the cell internalization. The second-stage pH-responsiveness in the endo/lysosomes with a more acidic environment accelerates the disassembly of the nanohybrid and the leakage of the core facilitated the endo/lysosome escape and mitochondrial targeting with the help of intracellular compartmental acidity. Gathering up the characteristics of neutralized charge and stepwise pH-responsiveness, the R-P@MSN-DTX acquired a good tumor inhibition rate of 72.6% on nude mice. Our report provided a reference for systemic mitochondrial targeting achieved by the union of "assembly-disassembly".
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Affiliation(s)
- Lijia Li
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, PR China.
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Lv J, Hao X, Li Q, Akpanyung M, Nejjari A, Neve AL, Ren X, Feng Y, Shi C, Zhang W. Star-shaped copolymer grafted PEI and REDV as a gene carrier to improve migration of endothelial cells. Biomater Sci 2017; 5:511-522. [DOI: 10.1039/c6bm00856a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A transfection process of EA.hy926 cells treated by REDV peptide targeted micelles/pDNA complexes.
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A shell-crosslinked polymeric micelle system for pH/redox dual stimuli-triggered DOX on-demand release and enhanced antitumor activity. Colloids Surf B Biointerfaces 2016; 152:1-11. [PMID: 28063272 DOI: 10.1016/j.colsurfb.2016.12.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 11/30/2016] [Accepted: 12/20/2016] [Indexed: 12/24/2022]
Abstract
Based on targeted amphiphilic block copolymer N-acetyl glucosamine-poly (styrene-alt-maleic anhydride)58-b-polystyrene130 (NAG-P(St-alt-MA)58-b-PSt130), a pH/redox dual-triggered shell-crosslinked polymeric micelle system was constructed. The shell-crosslinked micelles (CLM) were prepared by post-crosslinking method to regulate drug release kinetics using cystamine as linkers between carboxy groups of the shell. Compared with non-crosslinked micelles (NCLM), CLM showed spherical shapes with little increased mean diameter of 102.40±0.54nm, low polydispersity index (PDI) of 0.19±0.36, enlarged zeta potential value from -41.46±0.99 to -9.31±0.50mV, indicating the successful modification of disulfide bonds in shell. In vitro drug release study clearly exhibited a pH and redox dual-sensitive drug release profile with significantly accelerated drug release under pH 5.0 and 10mM GSH conditions (46.84% in 96h) without burst release. Both CLM and NCLM showed quite different release profiles between physiological (pH 7.4) and tumoral microenvironment (pH 5.0), effectively avoiding the premature drug leakage and realizing on-demand drug release. The MTT assay implied that CLM presented a time- and concentration-dependent manner to inhibit proliferation of A549 and MCF-7 cells and much lower IC50 values in comparison with that of NCLM after 72h incubation. Both FCM and CLSM results showed that CLM displayed much higher cellular uptake efficiency and anti-tumor activities than NCLM and free DOX. CLM and NCLM could be internalized by energy-dependent endocytosis mechanism due to similar surface properties. Overall, this dual-stimuli triggered micelle system provided a promising tumor-responsive platform for cancer therapy.
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