301
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Lauroyl-gemcitabine-loaded lipid nanocapsule hydrogel for the treatment of glioblastoma. J Control Release 2016; 225:283-93. [DOI: 10.1016/j.jconrel.2016.01.054] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 12/19/2022]
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302
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Hu Q, Sun W, Wang C, Gu Z. Recent advances of cocktail chemotherapy by combination drug delivery systems. Adv Drug Deliv Rev 2016; 98:19-34. [PMID: 26546751 PMCID: PMC4998845 DOI: 10.1016/j.addr.2015.10.022] [Citation(s) in RCA: 429] [Impact Index Per Article: 53.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/05/2015] [Accepted: 10/27/2015] [Indexed: 12/22/2022]
Abstract
Combination chemotherapy is widely exploited for enhanced cancer treatment in the clinic. However, the traditional cocktail administration of combination regimens often suffers from varying pharmacokinetics among different drugs. The emergence of nanotechnology offers an unparalleled opportunity for developing advanced combination drug delivery strategies with the ability to encapsulate various drugs simultaneously and unify the pharmacokinetics of each drug. This review surveys the most recent advances in combination delivery of multiple small molecule chemotherapeutics using nanocarriers. The mechanisms underlying combination chemotherapy, including the synergistic, additive and potentiation effects, are also discussed with typical examples. We further highlight the sequential and site-specific co-delivery strategies, which provide new guidelines for development of programmable combination drug delivery systems. Clinical outlook and challenges are also discussed in the end.
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Affiliation(s)
- Quanyin Hu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA; Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Wujin Sun
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA; Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Chao Wang
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA; Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Zhen Gu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA; Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA.
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303
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Liu X, Situ A, Kang Y, Villabroza KR, Liao Y, Chang CH, Donahue T, Nel AE, Meng H. Irinotecan Delivery by Lipid-Coated Mesoporous Silica Nanoparticles Shows Improved Efficacy and Safety over Liposomes for Pancreatic Cancer. ACS NANO 2016; 10:2702-15. [PMID: 26835979 PMCID: PMC4851343 DOI: 10.1021/acsnano.5b07781] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Urgent intervention is required to improve the 5 year survival rate of pancreatic ductal adenocarcinoma (PDAC). While the four-drug regimen, FOLFIRINOX (comprising irinotecan, 5-fluorouracil, oxaliplatin, and leucovorin), has a better survival outcome than the more frequently used gemcitabine, the former treatment platform is highly toxic and restricted for use in patients with good performance status. Since irinotecan contributes significantly to FOLFIRINOX toxicity (bone marrow and gastrointestinal tract), our aim was to reduce the toxicity of this drug by a custom-designed mesoporous silica nanoparticle (MSNP) platform, which uses a proton gradient for high-dose irinotecan loading across a coated lipid bilayer (LB). The improved stability of the LB-coated MSNP (LB-MSNP) carrier allowed less drug leakage systemically with increased drug concentrations at the tumor sites of an orthotopic Kras-derived PDAC model compared to liposomes. The LB-MSNP nanocarrier was also more efficient for treating tumor metastases. Equally important, the reduced leakage and slower rate of drug release by the LB-MSNP carrier dramatically reduced the rate of bone marrow, gastrointestinal, and liver toxicity compared to the liposomal carrier. We propose that the combination of high efficacy and reduced toxicity by the LB-MSNP carrier could facilitate the use of irinotecan as a first-line therapeutic to improve PDAC survival.
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Affiliation(s)
- Xiangsheng Liu
- Division of NanoMedicine, Department of Medicine, University of California , Los Angeles, California 90095, United States
| | - Allen Situ
- Division of NanoMedicine, Department of Medicine, University of California , Los Angeles, California 90095, United States
| | - Yanan Kang
- Division of NanoMedicine, Department of Medicine, University of California , Los Angeles, California 90095, United States
| | - Katie Rose Villabroza
- Division of NanoMedicine, Department of Medicine, University of California , Los Angeles, California 90095, United States
| | - Yupei Liao
- Division of NanoMedicine, Department of Medicine, University of California , Los Angeles, California 90095, United States
| | - Chong Hyun Chang
- Division of NanoMedicine, Department of Medicine, University of California , Los Angeles, California 90095, United States
| | - Timothy Donahue
- Departments of Surgery, Division of General Surgery, and Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA , Los Angeles, California 90095, United States
| | - Andre E Nel
- Division of NanoMedicine, Department of Medicine, University of California , Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California , Los Angeles, California 90095, United States
| | - Huan Meng
- Division of NanoMedicine, Department of Medicine, University of California , Los Angeles, California 90095, United States
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304
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Han H, Wang H, Chen Y, Li Z, Wang Y, Jin Q, Ji J. Theranostic reduction-sensitive gemcitabine prodrug micelles for near-infrared imaging and pancreatic cancer therapy. NANOSCALE 2016; 8:283-291. [PMID: 26608864 DOI: 10.1039/c5nr06734k] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A biodegradable and reduction-cleavable gemcitabine (GEM) polymeric prodrug with in vivo near-infrared (NIR) imaging ability was reported. This theranostic GEM prodrug PEG-b-[PLA-co-PMAC-graft-(IR820-co-GEM)] was synthesized by ring-opening polymerization and "click" reaction. The as-prepared reduction-sensitive prodrug could self-assemble into prodrug micelles in aqueous solution confirmed by dynamic light scattering (DLS) and transmission electron microscopy (TEM). In vitro drug release studies showed that these prodrug micelles were able to release GEM in an intracellular-mimicking reductive environment. These prodrug micelles could be effectively internalized by BxPC-3 pancreatic cancer cells, which were observed by confocal laser scanning microscopy (CLSM). Meanwhile, a methyl thiazolyl tetrazolium (MTT) assay demonstrated that this prodrug exhibited high cytotoxicity against BxPC-3 cells. The in vivo whole-animal near-infrared (NIR) imaging results showed that these prodrug micelles could be effectively accumulated in tumor tissue and had a longer blood circulation time than IR820-COOH. The endogenous reduction-sensitive gemcitabine prodrug micelles with the in vivo NIR imaging ability might have great potential in image-guided pancreatic cancer therapy.
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Affiliation(s)
- Haijie Han
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Haibo Wang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Yangjun Chen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Zuhong Li
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Yin Wang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Qiao Jin
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
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305
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Zuccarello L, Rampazzo E, Petrizza L, Prodi L, Satriano C. The influence of fluorescent silica nanoparticle surface chemistry on the energy transfer processes with lipid bilayers. RSC Adv 2016. [DOI: 10.1039/c6ra09816a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
A study of 3D and 2D intracellular FRET processes at the interface between surface tailored silica nanoparticles and lipid bilayers.
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Affiliation(s)
- L. Zuccarello
- Department of Chemical Sciences
- University of Catania
- Catania
- Italy
| | - E. Rampazzo
- Department of Chemistry
- “G. Ciamician”
- University of Bologna
- Bologna
- Italy
| | - L. Petrizza
- Department of Chemistry
- “G. Ciamician”
- University of Bologna
- Bologna
- Italy
| | - L. Prodi
- Department of Chemistry
- “G. Ciamician”
- University of Bologna
- Bologna
- Italy
| | - C. Satriano
- Department of Chemical Sciences
- University of Catania
- Catania
- Italy
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306
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Nyalosaso JL, Rascol E, Pisani C, Dorandeu C, Dumail X, Maynadier M, Gary-Bobo M, Kee Him JL, Bron P, Garcia M, Devoisselle JM, Prat O, Guari Y, Charnay C, Chopineau J. Synthesis, decoration, and cellular effects of magnetic mesoporous silica nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra09017f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of magnetic core@shell nanoparticles with different coatings and the study of their uptake by cells.
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307
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Li H, Yu H, Zhu C, Hu J, Du M, Zhang F, Yang D. Cisplatin and doxorubicin dual-loaded mesoporous silica nanoparticles for controlled drug delivery. RSC Adv 2016. [DOI: 10.1039/c6ra17213j] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Multicomponent therapeutic platforms have been proposed to minimize dosage of each drug and reduce toxicity, leading to achieving a synergistic effect and maximizing therapeutic efficacy.
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Affiliation(s)
- Hanwen Li
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Huijuan Yu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Caiying Zhu
- Obstetrics & Gynecology Hospital
- Shanghai Medical College
- Fudan University
- Shanghai 200011
- China
| | - Jianhua Hu
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Ming Du
- Obstetrics & Gynecology Hospital
- Shanghai Medical College
- Fudan University
- Shanghai 200011
- China
| | - Fayong Zhang
- Department of Neurosurgery
- Affiliated Huashan Hospital
- Fudan University
- Shanghai 200040
- China
| | - Dong Yang
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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308
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Lai H, Lu M, Lu H, Stenzel MH, Xiao P. pH-Triggered release of gemcitabine from polymer coated nanodiamonds fabricated by RAFT polymerization and copper free click chemistry. Polym Chem 2016. [DOI: 10.1039/c6py01188h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Prodrug (gemcitabine)-based polymer coated nanodiamonds as stimuli-responsive drug delivery platforms for the treatment of pancreatic cancer.
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Affiliation(s)
- Haiwang Lai
- Centre for Advanced Macromolecular Design
- School of Chemistry
- The University of New South Wales
- Sydney
- Australia
| | - Mingxia Lu
- Centre for Advanced Macromolecular Design
- School of Chemistry
- The University of New South Wales
- Sydney
- Australia
| | - Hongxu Lu
- Centre for Advanced Macromolecular Design
- School of Chemistry
- The University of New South Wales
- Sydney
- Australia
| | - Martina H. Stenzel
- Centre for Advanced Macromolecular Design
- School of Chemistry
- The University of New South Wales
- Sydney
- Australia
| | - Pu Xiao
- Centre for Advanced Macromolecular Design
- School of Chemistry
- The University of New South Wales
- Sydney
- Australia
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309
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Bisht G, Rayamajhi S. ZnO Nanoparticles: A Promising Anticancer Agent. Nanobiomedicine (Rij) 2016; 3:9. [PMID: 29942384 PMCID: PMC5998263 DOI: 10.5772/63437] [Citation(s) in RCA: 191] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 04/04/2016] [Indexed: 01/16/2023] Open
Abstract
Nanoparticles, with their selective targeting capabilities and superior efficacy, are becoming increasingly important in modern cancer therapy and starting to overshadow traditional cancer therapies such as chemotherapy radiation and surgery. ZnO nanoparticles, with their unique properties such as biocompatibility, high selectivity, enhanced cytotoxicity and easy synthesis, may be a promising anticancer agent. Zinc, as one of the major trace elements of the human body and co-factor of more than 300 mammalian enzymes, plays an important role in maintaining crucial cellular processes including oxidative stress, DNA replication, DNA repair, cell cycle progression and apoptosis. Thus, it is evident that an alteration in zinc levels in cancer cells can cause a deleterious effect. Research has shown that low zinc concentration in cells leads to the initiation and progression of cancer and high zinc concentration shows toxic effects. Zinc-mediated protein activity disequilibrium and oxidative stress through reactive oxygen species (ROS) may be the probable mechanism of this cytotoxic effect. The selective localization of ZnO nanoparticles towards cancer cells due to enhanced permeability and retention (EPR) effect and electrostatic interaction and selective cytotoxicity due to increased ROS present in cancer cells show that ZnO nanoparticles can selectively target and kill cancer cells, making them a promising anticancer agent.
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Affiliation(s)
- Gunjan Bisht
- Department of Chemical Science and Engineering, Kathmandu University Dhulikhel, Nepal
| | - Sagar Rayamajhi
- Department of Biotechnology, Kathmandu University Dhulikhel, Nepal
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310
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Patel K, Sundara Raj B, Chen Y, Lou X. Cytotoxicity of folic acid conjugated hollow silica nanoparticles toward Caco2 and 3T3 cells, with and without encapsulated DOX. Colloids Surf B Biointerfaces 2015; 140:213-222. [PMID: 26764104 DOI: 10.1016/j.colsurfb.2015.12.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 12/22/2015] [Accepted: 12/23/2015] [Indexed: 01/22/2023]
Abstract
Hollow silica nanoparticles of two sizes with and without a folic acid targeting ligand were synthesized. Fickian diffusion of the antitumor drug doxorubicin hydrochloride (DOX) was demonstrated by the produced nanoparticles, achieving a cumulative release of 73% and 45% for 215 nm and 430 nm particles respectively over a period of 500 h. The hollow silica nanoparticles presented a time and dose dependent toxicity, selective to human epithelial colorectal adenocarcinoma (Caco2) cells, over mouse embryonic fibroblast (3T3) cells. At 24h Caco2 cell viability was reduced to 66% using pure hollow silica at a concentration of 50 μg mL(-1), while that of 3T3 cells remained at 94% under the same conditions. The selective cytotoxicity of hollow silica nanoparticles was further enhanced by conjugation of folic acid and incorporation of DOX: at 24h and an equivalent DOX concentration of 0.5 μg mL(-1), viable Caco2 cells were reduced to 45% while 3T3 cells were reduced to 83%. Interestingly the equivalent dose of free DOX was more toxic to 3T3 than to Caco2 cells, reducing the 3T3 viability to 72% and the Caco2 viability to 80%, which is likely due to the presence of the p-glycoprotein pumps in Caco2 cells. Folic acid conjugation served to enhance the viability of both cell lines in this work. Careful optimization of the folate content should further improve the cell specificity of the hollow silica nanoparticles, thus providing a viable targeting platform for cancer therapy.
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Affiliation(s)
- Kunal Patel
- Department of Chemical Engineering, Curtin University, Kent Street, Bentley, WA 6102, Australia
| | - Behin Sundara Raj
- School of Pharmacy, CHIRI-Biosciences, Curtin University, Kent Street, Bentley, WA 6102, Australia
| | - Yan Chen
- School of Pharmacy, CHIRI-Biosciences, Curtin University, Kent Street, Bentley, WA 6102, Australia
| | - Xia Lou
- Department of Chemical Engineering, Curtin University, Kent Street, Bentley, WA 6102, Australia.
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311
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jadhav K. Mesoporous Silica Nanoparticles (MSN): A Nanonetwork and Hierarchical Structure in Drug Delivery. ACTA ACUST UNITED AC 2015. [DOI: 10.15406/jnmr.2015.02.00043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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312
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Jiang Y, Cao S, Bright DK, Bever AM, Blakney AK, Suydam IT, Woodrow KA. Nanoparticle-Based ARV Drug Combinations for Synergistic Inhibition of Cell-Free and Cell-Cell HIV Transmission. Mol Pharm 2015; 12:4363-74. [PMID: 26529558 DOI: 10.1021/acs.molpharmaceut.5b00544] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Nanocarrier-based drug delivery systems are playing an emerging role in human immunodeficiency virus (HIV) chemoprophylaxis and treatment due to their ability to alter the pharmacokinetics and improve the therapeutic index of various antiretroviral (ARV) drug compounds used alone and in combination. Although several nanocarriers have been described for combination delivery of ARV drugs, measurement of drug-drug activities facilitated by the use of these nanotechnology platforms has not been fully investigated for topical prevention. Here, we show that physicochemically diverse ARV drugs can be encapsulated within polymeric nanoparticles to deliver multidrug combinations that provide potent HIV chemoprophylaxis in relevant models of cell-free, cell-cell, and mucosal tissue infection. In contrast to existing approaches that coformulate ARV drug combinations together in a single nanocarrier, we prepared single-drug-loaded nanoparticles that were subsequently combined upon administration. ARV drug-nanoparticles were prepared using emulsion-solvent evaporation techniques to incorporate maraviroc (MVC), etravirine (ETR), and raltegravir (RAL) into poly(lactic-co-glycolic acid) (PLGA) nanoparticles. We compared the antiviral potency of the free and formulated drug combinations for all pairwise and triple drug combinations against both cell-free and cell-associated HIV-1 infection in vitro. The efficacy of ARV-drug nanoparticle combinations was also assessed in a macaque cervicovaginal explant model using a chimeric simian-human immunodeficiency virus (SHIV) containing the reverse transcriptase (RT) of HIV-1. We observed that our ARV-NPs maintained potent HIV inhibition and were more effective when used in combinations. In particular, ARV-NP combinations involving ETR-NP exhibited significantly higher antiviral potency and dose-reduction against both cell-free and cell-associated HIV-1 BaL infection in vitro. Furthermore, ARV-NP combinations that showed large dose-reduction were identified to be synergistic, whereas the equivalent free-drug combinations were observed to be strictly additive. Higher intracellular drug concentration was measured for cells dosed with the triple ARV-NP combination compared to the equivalent unformulated drugs. Finally, as a first step toward evaluating challenge studies in animal models, we also show that our ARV-NP combinations inhibit RT-SHIV virus propagation in macaque cervicovaginal tissue and block virus transmission by migratory cells emigrating from the tissue. Our results demonstrate that ARV-NP combinations control HIV-1 transmission more efficiently than free-drug combinations. These studies provide a rationale to better understand the role of nanocarrier systems in facilitating multidrug effects in relevant cells and tissues associated with HIV infection.
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Affiliation(s)
- Yonghou Jiang
- Department of Bioengineering, University of Washington , Seattle, Washington 98195, United States
| | - Shijie Cao
- Department of Bioengineering, University of Washington , Seattle, Washington 98195, United States
| | - Danielle K Bright
- Department of Chemistry, Seattle University , Seattle, Washington 98122, United States
| | - Alaina M Bever
- Department of Chemistry, Seattle University , Seattle, Washington 98122, United States
| | - Anna K Blakney
- Department of Bioengineering, University of Washington , Seattle, Washington 98195, United States
| | - Ian T Suydam
- Department of Chemistry, Seattle University , Seattle, Washington 98122, United States
| | - Kim A Woodrow
- Department of Bioengineering, University of Washington , Seattle, Washington 98195, United States
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313
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Bhaw-Luximon A, Jhurry D. New avenues for improving pancreatic ductal adenocarcinoma (PDAC) treatment: Selective stroma depletion combined with nano drug delivery. Cancer Lett 2015; 369:266-73. [PMID: 26415628 DOI: 10.1016/j.canlet.2015.09.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 07/23/2015] [Accepted: 09/08/2015] [Indexed: 12/18/2022]
Abstract
The effectiveness of chemotherapy in PDAC is hampered by the dynamic interaction between stroma and cancer cell. The two opposing schools of thought - non-depletion of the stroma vs its depletion - to better drug efficacy are here discussed. Disrupting stroma-cancer cell interaction to reduce tumor progression and promote apoptosis is identified as the new direction of treatment for PDAC. Clinical data have shown that elimination of fibrosis and blockade of the Hedgehog pathway in stroma effectively promote drug delivery to tumor site and apoptosis. Reduced stiffness of ECM, lower fibrosis, higher permeability and higher blood flow after stroma depletion increase drug delivery. Combination strategies involving selective stroma depletion coupled with chemotherapy is currently proving to be the most efficient at clinical level. Striking the right balance between fibrosis depletion and angiogenesis promotion resulting in enhanced drug delivery and apoptosis is a major challenge. The use of nano drug delivery devices coupled with stroma depletion is emerging as the next phase treatment for PDAC. The breakthrough to combat PDAC will likely be a combination of early diagnosis and the emerging chemotherapy strategies.
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Affiliation(s)
- Archana Bhaw-Luximon
- ANDI Centre of Excellence for Biomedical and Biomaterials Research (CBBR), University of Mauritius, MSIRI Building, Réduit, Mauritius
| | - Dhanjay Jhurry
- ANDI Centre of Excellence for Biomedical and Biomaterials Research (CBBR), University of Mauritius, MSIRI Building, Réduit, Mauritius.
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314
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Pochert A, Schneider D, Haase J, Linden M, Valiullin R. Diffusion and Molecular Exchange in Hollow Core-Shell Silica Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10285-10295. [PMID: 26327167 DOI: 10.1021/acs.langmuir.5b02367] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The diffusion behavior of small molecules in hollow core-shell nanocapsules was studied using pulsed field gradient NMR. By purposefully selecting the liquid saturating the hollow core and the porous shell and the solvent between the nanocapsules, two different situations corresponding to the excluded and admitted molecular exchange between the intra- and intercapsule liquids at the external boundary of the nanoparticles were covered. In the former case, corresponding to the reflective boundary condition for the molecules approaching the nanocapsule boundary, restricted diffusion in the complex pore space formed by the hollow core and the mesoporous shell was observed. The time-dependent diffusivities measured in the experiment were inter-related with the geometry of the intraparticle pore space. The thus assessed structural information was found to be in a good agreement with that provided by electron microscopy. In the case of the molecular exchange occurring between the two pools of molecules in the nanocapsules and between them, the diffusive dynamics of only the molecules remaining in the nanocapsules during the entire observation times was studied.
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Affiliation(s)
- A Pochert
- Institute of Inorganic Chemistry 2, University of Ulm , Ulm, 89081, Germany
| | | | | | - M Linden
- Institute of Inorganic Chemistry 2, University of Ulm , Ulm, 89081, Germany
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315
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Yin T, Wu Q, Wang L, Yin L, Zhou J, Huo M. Well-Defined Redox-Sensitive Polyethene Glycol-Paclitaxel Prodrug Conjugate for Tumor-Specific Delivery of Paclitaxel Using Octreotide for Tumor Targeting. Mol Pharm 2015; 12:3020-31. [PMID: 26086430 DOI: 10.1021/acs.molpharmaceut.5b00280] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A redox-sensitive prodrug, octreotide(Phe)-polyethene glycol-disulfide bond-paclitaxel [OCT(Phe)-PEG-ss-PTX], was successfully developed for targeted intracellular delivery of PTX. The formulation emphasizes long-circulation-time polymer-drug conjugates, combined targeting based on EPR and OCT-receptor mediated endocytosis, sharp redox response, and programmed drug release. The nontargeted redox-sensitive prodrug, mPEG-ss-PTX, and the targeted insensitive prodrug, OCT(Phe)-PEG-PTX, were also synthesized as controls. These polymer-PTX conjugates, structurally confirmed by 1H NMR, exhibited approximately 23,000-fold increase in water solubility over parent PTX and possessed drug contents ranging from 11% to 14%. The redox-sensitivity of the objective OCT(Phe)-PEG-ss-PTX prodrug was verified by in vitro PTX release profile in simulated reducing conditions, and the SSTRs-mediated endocytosis was demonstrated by flow cytometry and confocal laser scanning microscopy analyses. Consequently, compared with mPEG-PTX and OCT(Phe)-PEG-PTX, the OCT(Phe)-PEG-ss-PTX exhibited much stronger cyotoxicity and apoptosis-inducing ability against NCI-H446 tumor cells (SSTRs overexpression), whereas a comparable cytotoxicity of these prodrugs was obtained against WI-38 normal cells (no SSTRs expression). Finally, the in vivo studies on NCI-H466 tumor-bearing nude mice demonstrated that the OCT(Phe)-PEG-ss-PTX possessed superior tumor-targeting ability and antitumor activity over mPEG-PTX, OCT(Phe)-PEG-PTX and Taxol, as well as minimal collateral damage. This targeted redox-sensitive polymer-PTX prodrug system is promising in tumor therapy.
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Affiliation(s)
- Tingjie Yin
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Qu Wu
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Lei Wang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Lifang Yin
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jianping Zhou
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Meirong Huo
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
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316
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Vinardell MP, Mitjans M. Antitumor Activities of Metal Oxide Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2015; 5:1004-1021. [PMID: 28347048 PMCID: PMC5312892 DOI: 10.3390/nano5021004] [Citation(s) in RCA: 176] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 06/02/2015] [Accepted: 06/04/2015] [Indexed: 01/08/2023]
Abstract
Nanoparticles have received much attention recently due to their use in cancer therapy. Studies have shown that different metal oxide nanoparticles induce cytotoxicity in cancer cells, but not in normal cells. In some cases, such anticancer activity has been demonstrated to hold for the nanoparticle alone or in combination with different therapies, such as photocatalytic therapy or some anticancer drugs. Zinc oxide nanoparticles have been shown to have this activity alone or when loaded with an anticancer drug, such as doxorubicin. Other nanoparticles that show cytotoxic effects on cancer cells include cobalt oxide, iron oxide and copper oxide. The antitumor mechanism could work through the generation of reactive oxygen species or apoptosis and necrosis, among other possibilities. Here, we review the most significant antitumor results obtained with different metal oxide nanoparticles.
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Affiliation(s)
- Maria Pilar Vinardell
- Physiology Department, Faculty of Pharmacy, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain.
| | - Montserrat Mitjans
- Physiology Department, Faculty of Pharmacy, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain.
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317
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Huang P, Hu M, Zhou L, Wang Y, Pang Y, Tong G, Huang W, Su Y, Zhu X. Self-delivery nanoparticles from an amphiphilic covalent drug couple of irinotecan and bendamustine for cancer combination chemotherapy. RSC Adv 2015. [DOI: 10.1039/c5ra16511c] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We demonstrate an approach to prepare an anticancer drug self-delivery system from an amphiphilic covalent drug couple (Ir–Bd) for cancer combination chemotherapy.
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Affiliation(s)
- Ping Huang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Minxi Hu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Linzhu Zhou
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Yao Wang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Yan Pang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Gangsheng Tong
- Instrumental Analysis Center
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Wei Huang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Yue Su
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
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318
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Han H, Jin Q, Wang Y, Chen Y, Ji J. The rational design of a gemcitabine prodrug with AIE-based intracellular light-up characteristics for selective suppression of pancreatic cancer cells. Chem Commun (Camb) 2015; 51:17435-8. [DOI: 10.1039/c5cc06654a] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An enzyme and reduction-activatable gemcitabine prodrug with AIE properties was designed for targeted and image-guided pancreatic cancer therapy.
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Affiliation(s)
- Haijie Han
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Qiao Jin
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Yin Wang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Yangjun Chen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
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