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Han JO, Lee HJ, Jeong B. Thermosensitive core-rigid micelles of monomethoxy poly(ethylene glycol)-deoxy cholic acid. Biomater Res 2022; 26:16. [PMID: 35484562 PMCID: PMC9052506 DOI: 10.1186/s40824-022-00263-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/28/2022] [Indexed: 11/30/2022] Open
Abstract
Background Thermosensitive micelles with rigid cores that exhibit a reversible lower critical solution temperature at 30–35 °C can be applied for drug delivery. Method Hydrophilic monomethoxy poly(ethylene glycol) was conjugated to hydrophobic deoxycholic acid to prepare monomethoxy poly(ethylene glycol)-deoxycholic acid (mPEG-DC). Micelle formation and thermosensitive solution behavior were studied using various methods, including hydrophobic dye solubilization, transmission electron microscopy, dynamic light scattering, turbidity measurement, microcalorimetry, and 1H-NMR spectroscopy. Drug release from the thermosensitive micelles was demonstrated using estradiol, a model drug. Results The mPEG-DC formed micelles with a critical micelle concentration of 0.05 wt.% and an average size of 15 nm. Aqueous mPEG-DC solutions exhibit a lower critical solution temperature (LCST) that is independent of concentration and reversible over heating and cooling cycles. The LCST transition is an entropically driven process involving dehydration of the PEG shell. The thermosensitive mPEG-DC micelles with rigid DC cores were applied as an estradiol delivery system in which estradiol was released, without initial burst, over the 16 days in a diffusion-controlled manner. Conclusions This study suggests that mPEG-DCs form thermosensitive micelles with rigid cores that can function as an excellent diffusion-controlled hydrophobic drug delivery system without initial burst release. Graphical Abstract Thermosensitive core-rigid micelles of monomethoxy poly(ethylene glycol)-deoxy cholic acid![]() Supplementary Information The online version contains supplementary material available at 10.1186/s40824-022-00263-9.
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Affiliation(s)
- Jin Ok Han
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, Korea
| | - Hyun Jung Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, Korea
| | - Byeongmoon Jeong
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, Korea.
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2
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Felici A, Schlich M, Di Mascolo D, Goldoni L, Lisa Palange A, Decuzzi P. Boosting the Therapeutic Efficacy of Discoidal Nanoconstructs against Glioblastoma with Rationally Designed PEG-Docetaxel Conjugates. Eur J Pharm Biopharm 2022; 174:90-100. [DOI: 10.1016/j.ejpb.2022.03.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/18/2022] [Accepted: 03/22/2022] [Indexed: 11/26/2022]
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3
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Xiang J, Liu X, Yuan G, Zhang R, Zhou Q, Xie T, Shen Y. Nanomedicine from amphiphilizedprodrugs: Concept and clinical translation. Adv Drug Deliv Rev 2021; 179:114027. [PMID: 34732344 DOI: 10.1016/j.addr.2021.114027] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/30/2021] [Accepted: 10/27/2021] [Indexed: 12/15/2022]
Abstract
Nanomedicines generally consisting of carrier materials with small fractions of active pharmaceutical ingredients (API) have long been used to improve the pharmacokinetics and biodistributions, augment the therapeutic efficacies and mitigate the side effects. Amphiphilizing hydrophobic/hydrophilic drugs to prodrugs capable of self-assembly into well-defined nanostructures has emerged as a facile approach to fabricating nanomedicines because this amphiphilized prodrug (APD) strategy presents many advantages, including minimized use of inert carrier materials, well-characterized prodrug structures, fixed and high drug loading contents, 100% loading efficiency, and burst-free but controlled drug release. This review comprehensively summarizes recent advances in APDs and their nanomedicines, from the rationale and the stimuli-responsive linker chemistry for on-demand drug release to their progress to the clinics, clinical performance of APDs, as well as the challenges and perspective on future development.
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4
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Tian C, Guo J, Miao Y, Zheng S, Sun B, Sun M, Ye Q, Liu W, Zhou S, Kamei KI, He Z, Sun J. Triglyceride-Mimetic Structure-Gated Prodrug Nanoparticles for Smart Cancer Therapy. J Med Chem 2021; 64:15936-15948. [PMID: 34723524 DOI: 10.1021/acs.jmedchem.1c01328] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Off-target drug release and insufficient drug delivery are the main obstacles for effective anticancer chemotherapy. Prodrug-based self-assembled nanoparticles bioactivated under tumor-specific conditions are one of the effective strategies to achieve on-demand drug release and effective tumor accumulation. Herein, stimuli-activable prodrugs are designed yielding smart tumor delivery by combination of the triglyceride-mimic (TG-mimetic) prodrug structure and disulfide bond. Surprisingly, these prodrugs can self-assemble into uniform nanoparticles (NPs) with a high drug loading (over 40%) and accumulate in tumor sites specifically. The super hydrophobic TG structure can act as a gate that senses lipase to selectively control over NP dissociation and affect the glutathione-triggered prodrug activation. In addition, the impacts of the double bonds in the prodrug NPs on parent drug release and the following cytotoxicity, pharmacokinetics, and antitumor efficiency are further demonstrated. Our findings highlight the promising potential of TG-mimetic structure-gated prodrug nanoparticles for tumor-specific drug delivery.
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Affiliation(s)
- Chutong Tian
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Jingjing Guo
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Yifan Miao
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Shunzhe Zheng
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Bingjun Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Mengchi Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Qing Ye
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Wenxue Liu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Shuang Zhou
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Ken-Ichiro Kamei
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.,Institute for Integrated Cell-Material Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Zhonggui He
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Jin Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
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5
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Pan Q, Deng X, Gao W, Chang J, Pu Y, He B. Small molecules-PEG amphiphilic conjugates as carriers for drug delivery: 1. the effect of molecular structures on drug encapsulation. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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6
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Gong F, Wang R, Zhu Z, Duan J, Teng X, Cui ZK. Drug-interactive mPEG- b-PLA-Phe(Boc) micelles enhance the tolerance and anti-tumor efficacy of docetaxel. Drug Deliv 2020; 27:238-247. [PMID: 32003299 PMCID: PMC7034090 DOI: 10.1080/10717544.2020.1718245] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Docetaxel (DTX) is one of the most promising chemotherapeutic agents for a variety of solid tumors. However, the clinical efficacy of the marketed formulation, Taxotere®, is limited due to its poor aqueous solubility, side effects caused by the emulsifier, and low selective DTX distribution in vivo. Here a facile, well-defined, and easy-to-scale up DTX-loaded N-(tert-butoxycarbonyl)-L-phenylalanine end-capped methoxy-poly(ethylene glycol)-block-poly(D,L-lactide) (mPEG-b-PLA-Phe(Boc)) micelles (DTX-PMs) were prepared in an effort to develop a less toxic and more efficacious docetaxel formulation. The physicochemical properties, pharmacokinetics, biodistribution, and in vivo anti-tumor efficacy were evaluated in comparison to the marketed DTX formulation Taxotere®. DTX was successfully encapsulated in the hydrophobic micellar core with a high encapsulation efficiency (> 95%) and a high drug loading capacity (4.81 ± 0.08%). DTX-PMs exhibited outstanding stability in the aqueous environment due to the strong interactions between the terminal amino acid residues and docetaxel. The pharmacokinetic study in Sprague–Dawley rats revealed higher DTX concentrations in both whole blood and plasma for the group treated with DTX-PMs than that treated with Taxotere® due to the improved stability of the micellar formulation. In human non-small cell lung cancer (A549) tumor-bearing Balb/c nude mice, DTX-PMs significantly improved DTX accumulation and stalled DTX elimination in tumors than in bone marrow. Furthermore, only by half of the DTX dosage, our DTX/mPEG-b-PLA-Phe(Boc) micelles can achieve similar therapeutic effects as Taxotere®. Altogether, DTX-PMs hold great promise as a simple and effective drug delivery system for cancer chemotherapy.
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Affiliation(s)
- Feirong Gong
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
| | - Rongrong Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
| | - Zhengquan Zhu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
| | - Jiayao Duan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
| | - Xin Teng
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
| | - Zhong-Kai Cui
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Otorhinolaryngology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
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7
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Zuo S, Sun B, Yang Y, Zhou S, Zhang Y, Guo M, Sun M, Luo C, He Z, Sun J. Probing the Superiority of Diselenium Bond on Docetaxel Dimeric Prodrug Nanoassemblies: Small Roles Taking Big Responsibilities. SMALL 2020; 16:e2005039. [PMID: 33078579 DOI: 10.1002/smll.202005039] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Indexed: 02/05/2023]
Abstract
The current state of chemotherapy is far from satisfaction, restricted by the inefficient drug delivery and the off-target toxicity. Prodrug nanoassemblies are emerging as efficient platforms for chemotherapy. Herein, three docetaxel dimeric prodrugs are designed using diselenide bond, disulfide bond, or dicarbide bond as linkages. Interestingly, diselenide bond-bridged dimeric prodrug can self-assemble into stable nanoparticles with impressive high drug loading (≈70%, w/w). Compared with disulfide bond and dicarbide bond, diselenide bond greatly facilitates the self-assembly of dimeric prodrug, and then improves the colloidal stability, blood circulation time, and antitumor efficacy of prodrug nanoassemblies. Furthermore, the redox-sensitive diselenide bond can specifically respond to the overexpressed reactive oxygen species and glutathione in tumor cells, leading to tumor-specific drug release. Therefore, diselenide bond bridged prodrug nanoassemblies exhibit discriminating cytotoxicity between tumor cells and normal cells, significantly alleviating the systemic toxicity of docetaxel. The present work gains in-depth insight into the impact of diselenide bond on the dimeric prodrug nanoassemblies, and provides promising strategies for the rational design of the high efficiency-low toxicity chemotherapeutical nanomedicines.
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Affiliation(s)
- Shiyi Zuo
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Bingjun Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Yinxian Yang
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Shuang Zhou
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Yu Zhang
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Mengran Guo
- Department of Clinical Pharmacy, West China Hospital of Sichuan University, Chengdu, 610041, P. R. China
| | - Mengchi Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Cong Luo
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Zhonggui He
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Jin Sun
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
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8
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Docetaxel and its nanoformulations: how delivery strategies could impact the therapeutic outcome? Ther Deliv 2020; 11:755-759. [PMID: 32873188 DOI: 10.4155/tde-2020-0088] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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9
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Kim J, Lee J, Lee J, Keum H, Kim Y, Kim Y, Yu B, Lee SY, Tanaka J, Jon S, Choi MC. Tubulin-Based Nanotubes as Delivery Platform for Microtubule-Targeting Agents. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002902. [PMID: 32579276 DOI: 10.1002/adma.202002902] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/27/2020] [Indexed: 06/11/2023]
Abstract
Tubulin-based nanotubes (TNTs) to deliver microtubule-targeting agents (MTAs) for clinical oncology are reported. Three MTAs, docetaxel (DTX), laulimalide (LMD), and monomethyl auristatin E (MMAE), which attach to different binding sites in a tubulin, are loaded onto TNTs and cause structural changes in them, including shape anisotropy and tubulin layering. This drug-driven carrier transformation leads to changes in the drug-loading efficiency and stability characteristics of the carrier. TNTs coloaded with DTX and LMD efficiently deliver dual drug cargoes to cellular tubulins by the endolysosomal pathway, and results in synergistic anticancer and antiangiogenic action of the drugs in vitro. In in vivo tests, TNTs loaded with a microtubule-destabilizing agent MMAE suppress the growth of tumors with much higher efficacy than free MMAE did. This work suggests a new concept of using a drug's target protein as a carrier. The findings demonstrate that the TNTs developed here can be used universally as a delivery platform for many MTAs.
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Affiliation(s)
- Jinjoo Kim
- Department of Biological Sciences, Center for Precision Bio-Nanomedicine, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 34141, Korea
| | - Juncheol Lee
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 34141, Korea
| | - Jimin Lee
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 34141, Korea
| | - Hyeongseop Keum
- Department of Biological Sciences, Center for Precision Bio-Nanomedicine, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 34141, Korea
| | - Yumi Kim
- Department of Biological Sciences, Center for Precision Bio-Nanomedicine, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 34141, Korea
| | - Yujin Kim
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 34141, Korea
| | - Byeongjun Yu
- Department of Biological Sciences, Center for Precision Bio-Nanomedicine, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 34141, Korea
| | - Sang Yeop Lee
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 34141, Korea
| | - Junichi Tanaka
- Department of Chemistry, Biology and Marine Science, University of the Ryukyus, Nishihara, Okinawa, 903-0213, Japan
| | - Sangyong Jon
- Department of Biological Sciences, Center for Precision Bio-Nanomedicine, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 34141, Korea
| | - Myung Chul Choi
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 34141, Korea
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10
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Development of (G3-C12)-mediated camptothecin polymeric prodrug targeting to Galectin-3 receptor against androgen-independent prostate cancer. Int J Pharm 2020; 580:119123. [PMID: 32035258 DOI: 10.1016/j.ijpharm.2020.119123] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 01/07/2020] [Accepted: 02/04/2020] [Indexed: 01/08/2023]
Abstract
The development of small molecule anticancer drugs, with low water solubility and high toxicity, into polymeric prodrugs has developed into a promising strategy in clinical application. In this study, we synthesized a novel G3-C12-mediated esterase-sensitive tumor-targeting polymeric prodrug of camptothecin (CPT), P(OEGMA-co-CPT-co-G3-C12), and explored its anticancer activity against androgen-independent prostate cancer in vitro and in vivo. Compared to free CPT, the multifunctional polymeric prodrug demonstrated improved water solubility and stability, higher intracellular uptake, and enhanced cytotoxicity in DU145 cells in vitro. Furthermore, it displayed an improved accumulation in the tumor and an enhanced anticancer activity in vivo. Hence, P(OEGMA-co-CPT-co-G3-C12) could be a promising drug in the treatment of androgen-independent prostate cancer.
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11
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Formulation optimization of an ephrin A2 targeted immunoliposome encapsulating reversibly modified taxane prodrugs. J Control Release 2019; 310:47-57. [PMID: 31400383 DOI: 10.1016/j.jconrel.2019.08.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/01/2019] [Accepted: 08/07/2019] [Indexed: 12/19/2022]
Abstract
Ephrin A2 targeted immunoliposomes incorporating pH-sensitive taxane prodrugs were developed for sustained delivery of active drug to solid tumors. Here we describe the systematic formulation development and characterization of these immunoliposomes. We synthesized both paclitaxel and docetaxel prodrugs to formulate as ephrin A2-targeted liposomes stabilized in the aqueous core with sucroseoctasulfate (SOS). The optimized lipid formulation was comprised of egg-sphingomyelin, cholesterol, and polyethylene glycol distearoyl glycerol (PEG-DSG). The formulations examined had a high efficiency of prodrug encapsulation (as high as 114 mol% taxane per mole phospholipid) and subsequent stability (>3 years at 2-8 °C). The taxane prodrug was stabilized with extraliposomal citric acid and subsequently loaded into liposomes containing a gradient of SOS, resulting in highly stable SOS-drug complexes being formed inside the liposome. The internal prodrug and SOS concentrations were optimized for their impact on in vivo drug release and drug degradation. Cryo-electron microscope images revealed dense prodrug-SOS complex in the aqueous core of the immunoliposomes. Ephrin A2-targeted taxane liposomes exhibited sub-nanomolar (0.69 nM) apparent equilibrium dissociation constant toward the extracellular domain of the ephrin A2 receptor, long circulation half-life (8-12 h) in mouse plasma, a release rate dependent on intraliposomal drug concentration and stable long-term storage. At an equitoxic dose of 50 mg taxane/kg, ephrin A2-targeted liposomal prodrug showed greater antitumor activity than 10 mg/kg of docetaxel in A549 non-small cell lung, as well as MDA-MB-436 and SUM149 triple negative breast cancer xenograft models. The lead molecule entered a Phase I clinical trial in patients with solid tumors (NCT03076372).
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12
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Li Y, Zhang T, Liu Q, He J. PEG-Derivatized Dual-Functional Nanomicelles for Improved Cancer Therapy. Front Pharmacol 2019; 10:808. [PMID: 31379579 PMCID: PMC6659352 DOI: 10.3389/fphar.2019.00808] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/24/2019] [Indexed: 02/05/2023] Open
Abstract
Polymeric micelles have attracted considerable attention for effective delivery of poorly water-soluble cancer drugs. Polyethylene glycol (PEG), which has been approved for human use by the US Food and Drug Administration, is the most commonly used hydrophilic component of polymeric micelles because it is biocompatible and biodegradable. One disadvantage of traditional polymeric micelles is that they include a large amount of inert carrier materials, which do not contribute to therapeutic activity but increase cost and toxicity risk. A better alternative may be "dual-functional" micellar carriers, in which the hydrophobic carrier material (conjugated to PEG) has intrinsic therapeutic activity that complements, or even synergizes with, the antitumor activity of the drug cargo. This review summarizes recent progress in the development of PEG-derivatized dual-functional nanomicelles and surveys the evidence of their feasibility and promise for cancer therapy.
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Affiliation(s)
- Yanping Li
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, West China Hospital of Sichuan University, Chengdu, China
| | - Ting Zhang
- Department of Pharmacy, West China Hospital of Sichuan University, Chengdu, China
| | - Qinhui Liu
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, West China Hospital of Sichuan University, Chengdu, China
| | - Jinhan He
- Laboratory of Clinical Pharmacy and Adverse Drug Reaction, West China Hospital of Sichuan University, Chengdu, China.,Department of Pharmacy, West China Hospital of Sichuan University, Chengdu, China
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Zhang E, Xing R, Liu S, Li K, Qin Y, Yu H, Li P. Vascular targeted chitosan-derived nanoparticles as docetaxel carriers for gastric cancer therapy. Int J Biol Macromol 2018; 126:662-672. [PMID: 30599159 DOI: 10.1016/j.ijbiomac.2018.12.262] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/11/2018] [Accepted: 12/28/2018] [Indexed: 11/19/2022]
Abstract
A gastric cancer angiogenesis marker peptide, GX1, is promising to be a desirable ligand for anti-angiogenesis targeted drug of gastric cancer treatment. In this study, GX1 was utilized to fabricate a multifunctional vascular targeting docetaxel (DCT)-loaded nanoparticle with N-deoxycholic acid glycol chitosan (DGC) as the carrier and GX1-PEG-deoxycholic acid (GPD) conjugate as the targeting ligand. The mean size of obtained GX1-DGC-DCT was 150.9 nm with a narrow size distribution and their shape was spherical with smooth surface texture. The in vitro drug release test revealed a sustained release manner and an acid pH could accelerate the release compared with the neutral pH. Furthermore, GX1-DGC-DCT showed stronger cytotoxicity against co-cultured gastric cancer cells and human umbilical vein endothelial cells (co-HUVEC) than DCT within 100 μM. In addition, GX1 efficiently enhanced the cellular uptake of nanoparticles in co-HUVEC cells as confirmed by confocal fluorescence scanning microscopy. Moreover, in vivo delivery of GX1-DGC-DCT was demonstrated to inhibit tumor growth in SGC791 tumor-bearing mice with tumor inhibition rate (TIR) of 67.05% and no weight loss of mice was observed. The anti-tumor effects were further confirmed by H&E and TUNEL analysis. Therefore, this new drug delivery system represents a potential strategy for gastric cancer therapy.
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Affiliation(s)
- Enhui Zhang
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Ronge Xing
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Song Liu
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Kecheng Li
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Yukun Qin
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Huahua Yu
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Pengcheng Li
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory of Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
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14
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Preparation, characterization, and pharmacokinetics of liposomal docetaxel for oral administration. Arch Pharm Res 2018; 41:765-775. [PMID: 29961194 DOI: 10.1007/s12272-018-1046-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 06/11/2018] [Indexed: 12/19/2022]
Abstract
A docetaxel (DTX) liposomal formulation composed of egg phosphatidylcholine, sodium deoxycholate, and stearylamine was developed. Eudragit (0.5%) was coated to deliver the drug to the region between the distal small intestine and the colon. Lyophilized trehalose and mannitol were used as cryoprotectants because they preserve the particle integrity and good appearance. In vitro release studies showed that the amount of drug released from the coated liposomes was low in solution 1, which simulated the pH condition of the stomach. Especially during the average gastric emptying time, the amount of drug released decreased when Eudragit was added. The plasma DTX concentration was evaluated in pharmacokinetic studies. The plasma drug concentration after intravenous (i.v.) administration decreased rapidly within 120 min. Free DTX formulated using Tween 80 and the lyophilized Eudragit-coated liposomal formulation were compared after oral administration. The oral liposomal formulation had a longer half-life (t1/2) and three-fold higher oral bioavailability. Thus, lyophilized Eudragit-coated liposomal DTX could be a promising therapy for various solid tumors to improve patient convenience and quality of life.
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Abstract
Covalent modification of therapeutic compounds is a clinically proven strategy to devise prodrugs with enhanced treatment efficacies. This prodrug strategy relies on the modified drugs that possess advantageous pharmacokinetic properties and administration routes over their parent drug. Self-assembling prodrugs represent an emerging class of therapeutic agents capable of spontaneously associating into well-defined supramolecular nanostructures in aqueous solutions. The self-assembly of prodrugs expands the functional space of conventional prodrug design, affording a possible pathway to more effective therapies as the assembled nanostructure possesses distinct physicochemical properties and interaction potentials that can be tailored to specific administration routes and disease treatment. In this review, we will discuss the various types of self-assembling prodrugs in development, providing an overview of the methods used to control their structure and function and, ultimately, our perspective on their current and future potential.
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Affiliation(s)
- Andrew G Cheetham
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe Eastern Road, Zhengzhou 450052, Henan, China
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Preclinical evaluation of taxane-binding peptide-modified polymeric micelles loaded with docetaxel in an orthotopic breast cancer mouse model. Biomaterials 2017; 123:39-47. [PMID: 28161682 DOI: 10.1016/j.biomaterials.2017.01.026] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/15/2016] [Accepted: 01/22/2017] [Indexed: 01/20/2023]
Abstract
We developed a novel taxane-binding peptide (TBP) modified, biodegradable polymeric micelle that overcomes limitations of drug loading and poor serum stability typically seen with particle delivery, leading to enhanced pharmacokinetics and tumor distribution of docetaxel (DTX). The use of the taxane-binding peptide to increase docetaxel loading is particularly compelling as it takes advantage of a known intracellular binding mechanism in a new way. Docetaxel is a potent chemotherapeutic with a therapeutic index often limited by the toxicity of the excipients that are necessary to enhance its solubility for intravenous delivery. Our polymeric micelle has terminal furan groups that enable facile antibody Fab conjugation by Diels-Alder chemistry for targeted delivery. Compared to the conventional ethanolic polysorbate 80 formulation (Free DTX), our nanoparticle (NP DTX) formulation exhibited a two-fold increase in exposure and tumor accumulation. Notably, the reduced toxicity of the NP DTX formulation increased the therapeutic index and allowed for higher dosing regimens, with a maximum tolerated dose (MTD) 1.6-fold higher than that of the Free DTX formulation, which is significant and similar to enhancements observed in clinical products for docetaxel and other drugs. These improved properties led to enhanced mouse survival in an orthotopic model of breast cancer; however, the targeted formulation of Fab-NP DTX did not further improve efficacy. Together, these results clearly demonstrate the benefits of the TBP-modified polymeric micelles as promising carriers for docetaxel.
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17
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Liu T, Huang Q. Biodegradable brush-type copolymer modified with targeting peptide as a nanoscopic platform for targeting drug delivery to treat castration-resistant prostate cancer. Int J Pharm 2016; 511:1002-11. [PMID: 27521701 DOI: 10.1016/j.ijpharm.2016.08.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 07/29/2016] [Accepted: 08/08/2016] [Indexed: 12/22/2022]
Abstract
Well-defined amphiphilic tumor-targeting brush-type copolymers, poly(oligo(ethylene glycol) monomethyl ether methacrylate-co-G3-C12)-g-poly(ε-caprolactone) (P(OEGMA-co-G3-C12)-g- PCL), were synthesized by the combination of ring-opening polymerization (ROP), reversible addition-fragmentation transfer (RAFT) polymerization and polymer post-functionalization, in which G3-C12 was castration-resistant prostate cancer (CRPC) targeting peptide. The obtained polymers were then employed for the targeted treatment of CRPC by delivering a hydrophobic anticancer drug (bufalin, BUF). Polymerizable monomer, 3-((2-(methacryloyloxy)ethyl)thio)propanoic acid (BSMA) and PCL-based macromolecular monomer (PCLMA) were synthesized at first. RAFT polymerization of OEGMA, BSMA, and PCLMA afforded amphiphilic brush-type copolymers, P(OEGMA-co-BSMA)-g-PCL. Post-functionalization of the obtained polymers with G3-C12 led to the formation of the final amphiphilic targeting brush-type copolymers, P(OEGMA-co-G3-C12)-g- PCL. In aqueous media, P(OEGMA-co-G3-C12)-g-PCL self-assembles into micelles with a hydrodynamic diameter (Dh) of ∼66.1±0.44nm. It was demonstrated that the obtained micellar nanoparticles exhibited good biocompatibility and biodegradability. Besides, BUF-loaded micellar nanoparticles assembled from P(OEGMA-co-G3-C12)-g-PCL, BUF-NP-(G3-C12), showed a controlled drug release in vitro and improved anticancer efficacy both in vitro and in vivo.
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Affiliation(s)
- Tao Liu
- Shanghai High-Tech United Bio-Technological R&D Co., Ltd., Shanghai 201206, China
| | - Qianxia Huang
- Department of Emergency, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China.
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18
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Polymeric prodrug of bufalin for increasing solubility and stability: Synthesis and anticancer study in vitro and in vivo. Int J Pharm 2016; 506:382-93. [DOI: 10.1016/j.ijpharm.2016.04.041] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 04/01/2016] [Accepted: 04/15/2016] [Indexed: 11/21/2022]
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19
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Liu T, Jia T, Yuan X, Liu C, Sun J, Ni Z, Xu J, Wang X, Yuan Y. Development of octreotide-conjugated polymeric prodrug of bufalin for targeted delivery to somatostatin receptor 2 overexpressing breast cancer in vitro and in vivo. Int J Nanomedicine 2016; 11:2235-50. [PMID: 27284243 PMCID: PMC4883818 DOI: 10.2147/ijn.s100404] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Development of polymeric prodrugs of small molecular anticancer drugs has become one of the most promising strategies to overcome the intrinsic shortcomings of small molecular anticancer drugs and improve their anticancer performance. MATERIALS AND METHODS In the current work, we fabricated a novel octreotide (Oct)-modified esterase-sensitive tumor-targeting polymeric prodrug of bufalin (BUF) and explored its anticancer performance against somatostatin receptor 2 overexpressing breast cancer. RESULTS The obtained tumor-targeting polymeric prodrug of BUF, P(oligo[ethylene glycol] monomethyl ether methacrylate [OEGMA]-co-BUF-co-Oct), showed a nanosize dimension and controlled drug release features in the presence of esterase. It was demonstrated by in vitro experiment that P(OEGMA-co-BUF-co-Oct) showed enhanced cytotoxicity, cellular uptake, and apoptosis in comparison with those of free BUF. In vivo experiment further revealed the improved accumulation of drugs in tumor tissues and enhanced anticancer performance of P(OEGMA-co-BUF-co-Oct). CONCLUSION Taken together, this study indicated that polymeric prodrug of BUF holds promising potential toward the treatment of somatostatin receptor 2 overexpressing breast cancer.
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Affiliation(s)
- Tao Liu
- Centralab, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Tingting Jia
- Department of Pharmacy, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Xia Yuan
- Department of Pharmacy, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Cheng Liu
- Centralab, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Jian Sun
- Centralab, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Zhenhua Ni
- Centralab, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Jian Xu
- Centralab, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Xuhui Wang
- Department of Pharmacy, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Yi Yuan
- Department of Pharmacy, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
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20
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Bains A, Wulff JE, Moffitt MG. Microfluidic synthesis of dye-loaded polycaprolactone-block-poly(ethylene oxide) nanoparticles: Insights into flow-directed loading and in vitro release for drug delivery. J Colloid Interface Sci 2016; 475:136-148. [PMID: 27163840 DOI: 10.1016/j.jcis.2016.04.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 04/08/2016] [Accepted: 04/09/2016] [Indexed: 01/06/2023]
Abstract
Using the fluorescent probe dye 1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate (DiI) as a surrogate for hydrophobic drugs, we investigate the effects of water content and on-chip flow rate on the multiscale structure, loading and release properties of DiI-loaded poly(ε-caprolactone)-block-poly(ethylene oxide) (PCL-b-PEO) nanoparticles produced in a gas-liquid segmented microfluidic device. We find a linear increase in PCL crystallinity within the nanoparticle cores with increasing flow rate, while mean nanoparticle sizes first decrease and then increase with flow rate coincident with the disappearance and reappearance of long filament nanoparticles. Loading efficiencies at the lower water content (cwc+10wt%) are generally higher (up to 94%) compared to loading efficiencies (up to 53%) at the higher water content (cwc+75wt%). In vitro release times range between ∼2 and 4days for nanoparticles produced at cwc+10wt% and >15days for nanoparticles produced at cwc+75wt%. At the lower water content, slower release of DiI is found for nanoparticles produced at higher flow rate, while at high water content, release times first decrease and then increase with flow rate. Finally, we investigate the effects of the chemical and physical characteristics of the release medium on the kinetics of in vitro DiI release and nanoparticle degradation. This work demonstrates the general utility of dye-loaded nanoparticles as model systems for screening chemical and flow conditions for producing drug delivery formulations within microfluidic devices.
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Affiliation(s)
- Aman Bains
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC V8W 3V6, Canada
| | - Jeremy E Wulff
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC V8W 3V6, Canada
| | - Matthew G Moffitt
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC V8W 3V6, Canada.
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Zhao Y, Zhao J, Hao C, Han M, Wang M, Guo Y, Wang X. Self-assembled thermosensitive nanoparticles based on oligoethylene glycol dendron conjugated doxorubicin: preparation, and efficient delivery of free doxorubicin. RSC Adv 2016. [DOI: 10.1039/c5ra22224a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
An amphiphilic dendron–drug conjugate was synthesized via oligoethylene glycol (OEG) dendrons coupled with anticancer drug doxorubicin (DOX).
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Affiliation(s)
- Yanna Zhao
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- P. R. China
| | - Jing Zhao
- The College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Chunying Hao
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- P. R. China
| | - Meihua Han
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- P. R. China
| | - Mincan Wang
- The College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Yifei Guo
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- P. R. China
| | - Xiangtao Wang
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- P. R. China
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22
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Pan G, Bao YJ, Xu J, Liu T, Liu C, Qiu YY, Shi XJ, Yu H, Jia TT, Yuan X, Yuan ZT, Yin PH, Cao YJ. Esterase-responsive polymeric prodrug-based tumor targeting nanoparticles for improved anti-tumor performance against colon cancer. RSC Adv 2016. [DOI: 10.1039/c6ra05236c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report on the fabrication of a multifunctional polymeric prodrug covalently linked with an anticancer drug (bufalin, BUF) and tumor-targeting peptide (RGD) and investigate its anticancer performance against colon cancer in mice.
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23
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Han HS, Lee M, An JY, Son S, Ko H, Lee H, Chae YS, Kang YM, Park JH. A pH-responsive carboxymethyl dextran-based conjugate as a carrier of docetaxel for cancer therapy. J Biomed Mater Res B Appl Biomater 2015; 104:789-96. [DOI: 10.1002/jbm.b.33581] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 10/10/2015] [Accepted: 11/18/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Hwa Seung Han
- School of Chemical Engineering; Sungkyunkwan University; Suwon 440-746 Republic of Korea
| | - Minchang Lee
- School of Chemical Engineering; Sungkyunkwan University; Suwon 440-746 Republic of Korea
| | - Jae Yoon An
- School of Chemical Engineering; Sungkyunkwan University; Suwon 440-746 Republic of Korea
| | - Soyoung Son
- Department of Health Sciences and Technology; SAIHST, Sungkyunkwan University; Suwon 440-746 Republic of Korea
| | - Hyewon Ko
- Department of Health Sciences and Technology; SAIHST, Sungkyunkwan University; Suwon 440-746 Republic of Korea
| | - Hansang Lee
- School of Chemical Engineering; Sungkyunkwan University; Suwon 440-746 Republic of Korea
| | - Yee Soo Chae
- School of Medicine; Kyungpook National University; Daegu 700-422 Republic of Korea
| | - Young Mo Kang
- School of Medicine; Kyungpook National University; Daegu 700-422 Republic of Korea
| | - Jae Hyung Park
- School of Chemical Engineering; Sungkyunkwan University; Suwon 440-746 Republic of Korea
- Department of Health Sciences and Technology; SAIHST, Sungkyunkwan University; Suwon 440-746 Republic of Korea
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24
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Guo Y, Zhang P, Zhao Q, Wang K, Luan Y. Reduction-Sensitive Polymeric Micelles Based on Docetaxel-Polymer Conjugates Via Disulfide Linker for Efficient Cancer Therapy. Macromol Biosci 2015; 16:420-31. [PMID: 26647779 DOI: 10.1002/mabi.201500317] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 09/15/2015] [Indexed: 01/18/2023]
Affiliation(s)
- Yuanyuan Guo
- School of Pharmaceutical Science; Shandong University; 44 West Wenhua Road Jinan Shandong Province 250012 P. R. China
| | - Pei Zhang
- School of Pharmaceutical Science; Shandong University; 44 West Wenhua Road Jinan Shandong Province 250012 P. R. China
| | - Qingyun Zhao
- Hospital of Traditional Chinese Medicine of Jimo; Shandong Province P. R. China
| | - Kaiming Wang
- School of Pharmaceutical Science; Shandong University; 44 West Wenhua Road Jinan Shandong Province 250012 P. R. China
| | - Yuxia Luan
- School of Pharmaceutical Science; Shandong University; 44 West Wenhua Road Jinan Shandong Province 250012 P. R. China
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25
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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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26
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Hu Q, Rijcken CJ, Bansal R, Hennink WE, Storm G, Prakash J. Complete regression of breast tumour with a single dose of docetaxel-entrapped core-cross-linked polymeric micelles. Biomaterials 2015; 53:370-8. [DOI: 10.1016/j.biomaterials.2015.02.085] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/18/2015] [Accepted: 02/19/2015] [Indexed: 10/23/2022]
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27
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Danilova NV, Kalzhanov ZR, Nefedova NA, Mal'kov PG, Kosmas IP, Eliseeva MY, Mynbaev OA. Docetaxel-loaded solid lipid nanoparticles as a basis for a targeted and dose-sparing personalized breast cancer treatment strategy. Int J Nanomedicine 2015; 10:2417-21. [PMID: 25848260 PMCID: PMC4381627 DOI: 10.2147/ijn.s77186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Natalia V Danilova
- International Translational Medicine and Biomodeling Research Team, MIPT Center for Human Physiology, Laboratory of Cellular and Molecular Technologies, Moscow Institute of Physics and Technology, State University, Moscow, Russia ; Department of Physiology and Basic Pathology, Faculty of Fundamental Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Zhomart R Kalzhanov
- Department of Human Metabolism, Academic Unit of Reproductive and Developmental Medicine, Sheffield University, Sheffield, UK
| | - Nina A Nefedova
- Department of Physiology and Basic Pathology, Faculty of Fundamental Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Pavel G Mal'kov
- Department of Physiology and Basic Pathology, Faculty of Fundamental Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Ioannis P Kosmas
- International Translational Medicine and Biomodeling Research Team, MIPT Center for Human Physiology, Laboratory of Cellular and Molecular Technologies, Moscow Institute of Physics and Technology, State University, Moscow, Russia ; Department of Obstetrics and Gynecology, Ioannina State General Hospital G Chatzikosta, Ioannina, Greece
| | - Marina Y Eliseeva
- International Translational Medicine and Biomodeling Research Team, MIPT Center for Human Physiology, Laboratory of Cellular and Molecular Technologies, Moscow Institute of Physics and Technology, State University, Moscow, Russia ; Department of Obstetrics, Gynecology and Reproductive Medicine, Peoples' Friendship University of Russia, Moscow, Russia
| | - Ospan A Mynbaev
- International Translational Medicine and Biomodeling Research Team, MIPT Center for Human Physiology, Laboratory of Cellular and Molecular Technologies, Moscow Institute of Physics and Technology, State University, Moscow, Russia ; Department of Obstetrics, Gynecology and Reproductive Medicine, Peoples' Friendship University of Russia, Moscow, Russia ; Laboratory of Immunology, Moscow State University of Medicine and Dentistry named after AI Evdokimov, Moscow, Russia
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28
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Logie J, McLaughlin CK, Tam RY, Shoichet MS. Innovative use of the taxol binding peptide overcomes key challenges of stable and high drug loading in polymeric nanomicelles. Chem Commun (Camb) 2015; 51:12000-3. [DOI: 10.1039/c5cc04282h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Incorporating a taxol binding peptide into the hydrophobic backbone of polymeric nanomicelles enhances docetaxel loading while maintaining serum stability.
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Affiliation(s)
- Jennifer Logie
- Department of Chemical Engineering and Applied Chemistry
- University of Toronto
- Toronto
- Canada
- Institute for Biomaterials and Biomedical Engineering
| | - Christopher K. McLaughlin
- Department of Chemical Engineering and Applied Chemistry
- University of Toronto
- Toronto
- Canada
- Institute for Biomaterials and Biomedical Engineering
| | - Roger Y. Tam
- Department of Chemical Engineering and Applied Chemistry
- University of Toronto
- Toronto
- Canada
- Institute for Biomaterials and Biomedical Engineering
| | - Molly S. Shoichet
- Department of Chemical Engineering and Applied Chemistry
- University of Toronto
- Toronto
- Canada
- Institute for Biomaterials and Biomedical Engineering
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29
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Lv S, Tang Z, Zhang D, Song W, Li M, Lin J, Liu H, Chen X. Well-defined polymer-drug conjugate engineered with redox and pH-sensitive release mechanism for efficient delivery of paclitaxel. J Control Release 2014; 194:220-7. [DOI: 10.1016/j.jconrel.2014.09.009] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 07/30/2014] [Accepted: 09/04/2014] [Indexed: 10/24/2022]
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30
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Yuan Q, Han J, Cong W, Ge Y, Ma D, Dai Z, Li Y, Bi X. Docetaxel-loaded solid lipid nanoparticles suppress breast cancer cells growth with reduced myelosuppression toxicity. Int J Nanomedicine 2014; 9:4829-46. [PMID: 25378924 PMCID: PMC4207579 DOI: 10.2147/ijn.s70919] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Docetaxel is an adjuvant chemotherapy drug widely used to treat multiple solid tumors; however, its toxicity and side effects limit its clinical efficacy. Herein, docetaxel-loaded solid lipid nanoparticles (DSNs) were developed to reduce systemic toxicity of docetaxel while still keeping its anticancer activity. To evaluate its anticancer activity and toxicity, and to understand the molecular mechanisms of DSNs, different cellular, molecular, and whole genome transcription analysis approaches were utilized. The DSNs showed lower cytotoxicity compared with the commercial formulation of docetaxel (Taxotere®) and induced more apoptosis at 24 hours after treatment in vitro. DSNs can cause the treated cancer cells to arrest in the G2/M phase in a dose-dependent manner similar to Taxotere. They can also suppress tumor growth very effectively in a mice model with human xenograft breast cancer. Systemic analysis of gene expression profiles by microarray and subsequent verification experiments suggested that both DSNs and Taxotere regulate gene expression and gene function, including DNA replication, DNA damage response, cell proliferation, apoptosis, and cell cycle regulation. Some of these genes expressed differentially at the protein level although their messenger RNA expression level was similar under Taxotere and DSN treatment. Moreover, DSNs improved the main side effect of Taxotere by greatly lowering myelosuppression toxicity to bone marrow cells from mice. Taken together, these results expound the antitumor efficacy and the potential working mechanisms of DSNs in its anticancer activity and toxicity, which provide a theoretical foundation to develop and apply a more efficient docetaxel formulation to treat cancer patients.
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Affiliation(s)
- Qing Yuan
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Jing Han
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China ; School of Life Sciences, Anhui University, Hefei, People's Republic of China
| | - Wenshu Cong
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Ying Ge
- Cancer Center, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, People's Republic of China
| | - Dandan Ma
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China ; Cancer Center, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, People's Republic of China ; Graduate School, Dalian Medical University, Dalian, People's Republic of China
| | - Zhaoxia Dai
- Cancer Center, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, People's Republic of China ; Graduate School, Dalian Medical University, Dalian, People's Republic of China
| | - Yaping Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Xiaolin Bi
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China ; Cancer Center, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, People's Republic of China ; Graduate School, Dalian Medical University, Dalian, People's Republic of China
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Pan D, Schmieder AH, Wang K, Yang X, Senpan A, Cui G, Killgore K, Kim B, Allen JS, Zhang H, Caruthers SD, Shen B, Wickline SA, Lanza GM. Anti-angiogenesis therapy in the Vx2 rabbit cancer model with a lipase-cleavable Sn 2 taxane phospholipid prodrug using α(v)β₃-targeted theranostic nanoparticles. Theranostics 2014; 4:565-78. [PMID: 24723979 PMCID: PMC3982128 DOI: 10.7150/thno.7581] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 01/27/2014] [Indexed: 01/18/2023] Open
Abstract
In nanomedicine, the hydrophobic nature of paclitaxel has favored its incorporation into many nanoparticle formulations for anti-cancer chemotherapy. At lower doses taxanes are reported to elicit anti-angiogenic responses. In the present study, the facile synthesis, development and characterization of a new lipase-labile docetaxel prodrug is reported and shown to be an effective anti-angiogenic agent in vitro and in vivo. The Sn 2 phosphatidylcholine prodrug was stably incorporated into the lipid membrane of αvβ3-integrin targeted perfluorocarbon (PFC) nanoparticles (αvβ3-Dxtl-PD NP) and did not appreciably release during dissolution against PBS buffer or plasma over three days. Overnight exposure of αvβ3-Dxtl-PD NP to plasma spiked with phospholipase enzyme failed to liberate the taxane from the membrane until the nanoparticle integrity was compromised with alcohol. The bioactivity and efficacy of αvβ3-Dxtl-PD NP in endothelial cell culture was as effective as Taxol® or free docetaxel in methanol at equimolar doses over 96 hours. The anti-angiogenesis effectiveness of αvβ3-Dxtl-PD NP was demonstrated in the Vx2 rabbit model using MR imaging of angiogenesis with the same αvβ3-PFC nanoparticle platform. Nontargeted Dxtl-PD NP had a similar MR anti-angiogenesis response as the integrin-targeted agent, but microscopically measured decreases in tumor cell proliferation and increased apoptosis were detected only for the targeted drug. Equivalent dosages of Abraxane® given over the same treatment schedule had no effect on angiogenesis when compared to control rabbits receiving saline only. These data demonstrate that αvβ3-Dxtl-PD NP can reduce MR detectable angiogenesis and slow tumor progression in the Vx2 model, whereas equivalent systemic treatment with free taxane had no benefit.
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Cai L, Qiu N, Xiang M, Tong R, Yan J, He L, Shi J, Chen T, Wen J, Wang W, Chen L. Improving aqueous solubility and antitumor effects by nanosized gambogic acid-mPEG₂₀₀₀ micelles. Int J Nanomedicine 2013; 9:243-55. [PMID: 24403830 PMCID: PMC3883552 DOI: 10.2147/ijn.s54050] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The clinical application of gambogic acid, a natural component with promising antitumor activity, is limited due to its extremely poor aqueous solubility, short half-life in blood, and severe systemic toxicity. To solve these problems, an amphiphilic polymer-drug conjugate was prepared by attachment of low molecular weight (ie, 2 kDa) methoxy poly(ethylene glycol) methyl ether (mPEG) to gambogic acid (GA-mPEG2000) through an ester linkage and characterized by 1H nuclear magnetic resonance. The GA-mPEG2000 conjugates self-assembled to form nanosized micelles, with mean diameters of less than 50 nm, and a very narrow particle size distribution. The properties of the GA-mPEG2000 micelles, including morphology, stability, molecular modeling, and drug release profile, were evaluated. MTT (3-(4,5-dimethylthiazo l-2-yl)-2,5 diphenyl tetrazolium bromide) tests demonstrated that the GA-mPEG2000 micelle formulation had obvious cytotoxicity to tumor cells and human umbilical vein endothelial cells. Further, GA-mPEG2000 micelles were effective in inhibiting tumor growth and prolonged survival in subcutaneous B16-F10 and C26 tumor models. Our findings suggest that GA-mPEG2000 micelles may have promising applications in tumor therapy.
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Affiliation(s)
- Lulu Cai
- Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, People's Republic of China
| | - Neng Qiu
- College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, People's Republic of China
| | - Mingli Xiang
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, People's Republic of China
| | - Rongsheng Tong
- Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, People's Republic of China
| | - Junfeng Yan
- Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, People's Republic of China
| | - Lin He
- Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, People's Republic of China
| | - Jianyou Shi
- Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, People's Republic of China
| | - Tao Chen
- Faculty of Pharmacy, University of Montreal, Montreal, QC, Canada
| | - Jiaolin Wen
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, People's Republic of China
| | - Wenwen Wang
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, People's Republic of China
| | - Lijuan Chen
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, People's Republic of China
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Liu F, Li M, Liu C, Liu Y, Liang Y, Wang F, Zhang N. Tumor-Specific Delivery and Therapy by Double-Targeted DTX-CMCS-PEG-NGR Conjugates. Pharm Res 2013; 31:475-88. [DOI: 10.1007/s11095-013-1176-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 08/08/2013] [Indexed: 12/15/2022]
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McLaughlin CK, Logie J, Shoichet MS. Core and Corona Modifications for the Design of Polymeric Micelle Drug-Delivery Systems. Isr J Chem 2013. [DOI: 10.1002/ijch.201300085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Liu F, Feng L, Zhang L, Zhang X, Zhang N. Synthesis, characterization and antitumor evaluation of CMCS–DTX conjugates as novel delivery platform for docetaxel. Int J Pharm 2013; 451:41-9. [DOI: 10.1016/j.ijpharm.2013.04.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 03/08/2013] [Accepted: 04/08/2013] [Indexed: 01/08/2023]
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Yu Y, He Y, Xu B, He Z, Zhang Y, Chen Y, Yang Y, Xie Y, Zheng Y, He G, He J, Song X. Self-assembled methoxy poly(ethylene glycol)-cholesterol micelles for hydrophobic drug delivery. J Pharm Sci 2012; 102:1054-62. [PMID: 23280512 DOI: 10.1002/jps.23418] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Revised: 11/13/2012] [Accepted: 11/20/2012] [Indexed: 02/05/2023]
Abstract
To promote the application of methoxy poly(ethylene glycol)-cholesterol (mPEG-Chol), mPEG-Chol was used to prepare core-shell micelles encapsulating poorly water-soluble docetaxel (DTX-PM) by modified cosolvent evaporation method. Approaches to enhance DTX entrapment efficiency (EE) and minimize particle size were investigated in detail, including organic and aqueous phase composition, organic/aqueous phase ratio, and polymer concentration. In optimal formulation, micelles had higher EE (97.6%) and drug loading (4.76%) with the diameter of 13.76 ± 0.68 nm and polydispersity index of 0.213 ± 0.006. Transmission electron microscopy (TEM) showed that the micelles were spherical, and differential scanning calorimetry (DSC) analysis proved that DTX was successfully entrapped into mPEG-Chol micelles. The in vitro cytotoxicity experiments displayed that blank micelles had no effect on the growth of SKOV-3, BXPC-3, A549, and HepG-2 cells, demonstrating that mPEG-Chol was one of the biocompatible biomaterials. The half inhibition concentration of DTX-PM on SKOV-3, BXPC-3, A549, and HepG-2 cells were 10.08, 7.6, 28.37, and 125.75 ng/mL, respectively. DTX-PM had the similar antitumor activity to free DTX, indicating that mPEG-Chol was a promising micellar vector for hydrophobic drug delivery. In addition, this work provided a new and facile approach to prepare drug-loaded micelles with controllable performances.
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Affiliation(s)
- Yiyi Yu
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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Moysan E, Bastiat G, Benoit JP. Gemcitabine versus Modified Gemcitabine: a review of several promising chemical modifications. Mol Pharm 2012; 10:430-44. [PMID: 22978251 DOI: 10.1021/mp300370t] [Citation(s) in RCA: 157] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Gemcitabine, an anticancer agent which acts against a wide range of solid tumors, is known to be rapidly deaminated in blood to the inactive metabolite 2',2'-difluorodeoxyuridine and to be rapidly excreted by the urine. Moreover, many cancers develop resistance against this drug, such as loss of transporters and kinases responsible for the first phosphorylation step. To increase its therapeutic levels, gemcitabine is administered at high doses (1000 mg/m(2)) causing side effects (neutropenia, nausea, and so forth). To improve its metabolic stability and cytotoxic activity and to limit the phenomena of resistance many alternatives have emerged, such as the synthesis of prodrugs. Modifying an anticancer agent is not new; paclitaxel or ara-C has been subjected to such changes. This review summarizes the various chemical modifications that can be found in the 4-(N)- and 5'-positions of gemcitabine. They can provide (i) a protection against deamination, (ii) a better storage and (iii) a prolonged release in the cell, (iv) a possible use in the case of deoxycytidine kinase deficiency, and (v) transporter deficiency. These new gemcitabine-based sysems have the potential to improve the clinical outcome of a chemotherapy strategy.
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Affiliation(s)
- Elodie Moysan
- LUNAM Université -Micro et Nanomédecines Biomimétiques, F-49933 Angers, France
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38
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Kuang H, Wu S, Xie Z, Meng F, Jing X, Huang Y. Biodegradable amphiphilic copolymer containing nucleobase: synthesis, self-assembly in aqueous solutions, and potential use in controlled drug delivery. Biomacromolecules 2012; 13:3004-12. [PMID: 22889069 DOI: 10.1021/bm301169x] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Biodegradable nucleobase-grafted amphiphilic copolymer, the methoxyl poly (ethylene glycol)-b-poly (L-lactide-co-2-methyl-2(3-(2,3-dihydroxylpropylthio) propyloxycarbonyl)-propylene carbonate/1-carboxymethylthymine) (mPEG-b- P(LA-co-MPT)), was synthesized. (1)H NMR titration and FT-IR spectroscopy indicated that the hydrogen-bonding could be formed between mPEG-b-P(LA-co-MPT) and 9-hexadecyladenine (A-C16). The hydrophobic microenvironment of the amphiphilic copolymer can protect the complementary multiple hydrogen bonds between mPEG-b-P(LA-co-MPT) and A-C16 from water effectively. The addition of A-C16 not only lowered the critical aggregation concentration (CAC) of mPEG-b-P(LA-co-MPT)/A-C16 nanoparticles (NPs) in aqueous solution but also induced different morphologies, which can be observed by transmission electron microscopy (TEM). Meanwhile, dynamic light scattering (DLS) and turbidometry was utilized to evaluate the effect of temperature and pH change on the stability of mPEG-b-P(LA-co-MPT)/A-C16 NPs. Cytotoxicity evaluation showed good biocompatibility of the mPEG-b-P(LA-co-MPT)/A-C16 NPs. The in vitro drug release profile showed that with the increase of A-C16 content, the doxorubiucin (DOX) release at pH 7.4 decreased, while the faster release rate was observed with the addition of A-C16 with a pH of 5.0. Importantly, DOX-loaded NPs exerted comparable cytotoxicity against MDA-MB-231 cells. This work provided a new method to stabilize NP structure using hydrogen-bonds and would have the potential to be applied in controlled drug delivery.
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Affiliation(s)
- Huihui Kuang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
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Harada M, Iwata C, Saito H, Ishii K, Hayashi T, Yashiro M, Hirakawa K, Miyazono K, Kato Y, Kano MR. NC-6301, a polymeric micelle rationally optimized for effective release of docetaxel, is potent but is less toxic than native docetaxel in vivo. Int J Nanomedicine 2012; 7:2713-27. [PMID: 22745540 PMCID: PMC3383288 DOI: 10.2147/ijn.s31247] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Drug release rate is an important factor in determining efficacy and toxicity of nanoscale drug delivery systems. However, optimization of the release rate in polymeric micellar nanoscale drug delivery systems has not been fully investigated. In this study NC-6301, a poly(ethylene glycol)-poly(aspartate) block copolymer with docetaxel (DTX) covalently bound via ester link, was synthesized with various numbers of DTX molecules bound to the polymer backbone. The number of DTX molecules was determined up to 14 to achieve an optimal release rate, based upon the authors' own pharmacokinetic model using known patient data. Efficacy and toxicity of the formulation was then tested in animals. When administered three times at 4-day intervals, the maximum tolerated doses of NC-6301 and native DTX were 50 and 10 mg/kg, respectively, in nude mice. Tissue distribution studies of NC-6301 in mice at 50 mg/kg revealed prolonged release of free DTX in the tumor for at least 120 hours, thus supporting its effectiveness. Furthermore, in cynomolgus monkeys, NC-6301 at 6 mg/kg three times at 2-week intervals showed marginal toxicity, whereas native DTX, at 3 mg/kg with the same schedule, induced significant decrease of food consumption and neutrophil count. NC-6301 at 50 mg/kg in mice also regressed a xenografted tumor of MDA-MB-231 human breast cancer. Native DTX, on the other hand, produced only transient and slight regression of the same tumor xenograft. NC-6301 also significantly inhibited growth of OCUM-2MLN human scirrhous gastric carcinoma in an orthotopic mouse model. Total weight of metastatic lymph nodes was also reduced. In conclusion, NC-6301 with an optimized release rate improved the potency of DTX while reducing its toxicity.
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40
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Ernsting MJ, Tang WL, MacCallum NW, Li SD. Preclinical pharmacokinetic, biodistribution, and anti-cancer efficacy studies of a docetaxel-carboxymethylcellulose nanoparticle in mouse models. Biomaterials 2012; 33:1445-54. [DOI: 10.1016/j.biomaterials.2011.10.061] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Accepted: 10/22/2011] [Indexed: 01/18/2023]
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41
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Dandekar P, Jain R, Stauner T, Loretz B, Koch M, Wenz G, Lehr CM. A Hydrophobic Starch Polymer for Nanoparticle-Mediated Delivery of Docetaxel. Macromol Biosci 2011; 12:184-94. [DOI: 10.1002/mabi.201100244] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 09/01/2011] [Indexed: 02/05/2023]
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42
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Ernsting MJ, Tang WL, MacCallum N, Li SD. Synthetic modification of carboxymethylcellulose and use thereof to prepare a nanoparticle forming conjugate of docetaxel for enhanced cytotoxicity against cancer cells. Bioconjug Chem 2011; 22:2474-86. [PMID: 22014112 DOI: 10.1021/bc200284b] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A nanoparticle formulation of docetaxel (DTX) was designed to address the strengths and limitations of current taxane delivery systems: PEGylation, high drug conjugation efficiency (>30 wt %), a slow-release mechanism, and a well-defined and stable nanoparticle identity were identified as critical design parameters. The polymer conjugate was synthesized with carboxymethylcellulose (CMC), an established pharmaceutical excipient characterized by a high density of carboxylate groups permitting increased conjugation of a drug. CMC was chemically modified through acetylation to eliminate its gelling properties and to improve solvent solubility, enabling high yield and reproducible conjugation of DTX and poly(ethylene glycol) (PEG). The optimal conjugate formulation (Cellax) contained 37.1 ± 1.5 wt % DTX and 4.7 ± 0.8 wt % PEG, exhibited a low critical aggregation concentration of 0.6 μg/mL, and formed 118-134 nm spherical nanoparticles stable against dilution. Conjugate compositions with a DTX degree of substitution (DS) outside the 12.3-20.8 mol % range failed to form discrete nanoparticles, emphasizing the importance of hydrophobic and hydrophilic balance in molecular design. Cellax nanoparticles released DTX in serum with near zero order kinetics (100% in 3 weeks), was internalized in murine and human cancer cells, and induced significantly higher toxic effects against a panel of tumor cell lines (2- to 40-fold lower IC50 values) compared to free DTX.
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Affiliation(s)
- Mark J Ernsting
- Medicinal Chemistry Platform, Ontario Institute for Cancer Research, Toronto, Ontario, Canada
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43
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Liu Y, Mi Y, Zhao J, Feng SS. Multifunctional silica nanoparticles for targeted delivery of hydrophobic imaging and therapeutic agents. Int J Pharm 2011; 421:370-8. [PMID: 22001536 DOI: 10.1016/j.ijpharm.2011.10.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 08/22/2011] [Accepted: 10/02/2011] [Indexed: 11/16/2022]
Abstract
This article reports the development of a multifunctional silica nanoparticle system for targeted delivery of hydrophobic imaging and therapeutic agents. Normally, silica nanoparticles have been widely used to deliver hydrophilic drugs such as doxorubicin while difficult to carry hydrophobic drugs. A strategy for loading hydrophobic drugs onto silica nanoparticles via covalent attachment was developed in this study as a universal strategy to solve this problem. Docetaxel, one of the most potent therapeutics for cancer treatment is selected as a model hydrophobic drug and quantum dots (QDs) are used as a model imaging agent. Such a multifunctional delivery system possesses high drug loading capacity, controlled drug release behavior and stable drug reservation. A mixed layer of polyethylene glycol conjugated phospholipids is formed on the nanoparticle surface to further enhance the biocompatibility and cell fusion capability of the delivery system. Folic acid as ligand is then conjugated onto the surface layer for targeting. Such a multifunctional system for targeting, imaging and therapy is characterized and evaluated in vitro. Fluorescent confocal microscopy is used to monitor the cellular uptake by specific cancer cells. Cytotoxicity studies are conducted by using MTT assay.
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Affiliation(s)
- Yutao Liu
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Block E5, 02-11, 4 Engineering Drive 4, Singapore 117576, Singapore
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44
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Liu Z, Liu D, Wang L, Zhang J, Zhang N. Docetaxel-loaded pluronic p123 polymeric micelles: in vitro and in vivo evaluation. Int J Mol Sci 2011; 12:1684-96. [PMID: 21673916 PMCID: PMC3111627 DOI: 10.3390/ijms12031684] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Revised: 02/26/2011] [Accepted: 02/28/2011] [Indexed: 11/17/2022] Open
Abstract
In this work, novel docetaxel (DTX) -loaded Tween 80-free Pluronic P123 (P123) micelles with improved therapeutic effect were developed. The freeze-dried DTX-loaded P123 micelles (DTX-micelles) were analyzed by HPLC, TEM and DLS to determine the DTX loading, micelle morphology, size, respectively. The in vitro cytotoxic activity of DTX-micelles in HepG2, A549 and malignant melanoma B16 cells were evaluated by MTT assay. The corresponding in vivo antitumor efficacy was assessed in Kunming mice bearing B16 tumor after intravenous administration. The DTX-loading and efficiency into the micelles were 2.12 ± 0.09% and 86.34 ± 3.32%, respectively. The DTX-micelles were spherical with a mean particle size of 50.7 nm and size distribution from 22 to 84 nm, which suggested that they should be able to selectively accumulate in solid tumors by means of EPR effect, with a zeta potential of -12.45 ± 3.24 mV. The in vitro release behavior of DTX from DTX-micelles followed the Weibull equation. Compared with Duopafei(®), DTX-micelles showed higher cytotoxicity against HepG2 (P < 0.01), A549 (P < 0.05) and B16 (P < 0.01) cells. In addition, DTX-micelles exhibited remarkable antitumor activity and reduced toxicity on B16 tumor in vivo. The tumor inhibition rates (TIR) of DTX-micelles was 91.6% versus 76.3% of Duopafei(®) (P < 0.01). These results suggested that P123 micelles might be considered as an effective DTX delivery system.
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Affiliation(s)
- Zhihong Liu
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, Ji’nan 250012, Shandong, China
| | - Donghua Liu
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, Ji’nan 250012, Shandong, China
| | - Lili Wang
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, Ji’nan 250012, Shandong, China
| | - Juan Zhang
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, Ji’nan 250012, Shandong, China
| | - Na Zhang
- School of Pharmaceutical Science, Shandong University, 44 Wenhua Xi Road, Ji’nan 250012, Shandong, China
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45
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Gao Y, Yang R, Zhang Z, Chen L, Sun Z, Li Y. Solid lipid nanoparticles reduce systemic toxicity of docetaxel: Performance and mechanism in animal. Nanotoxicology 2011; 5:636-49. [DOI: 10.3109/17435390.2010.551427] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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46
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Soliman GM, Sharma A, Maysinger D, Kakkar A. Dendrimers and miktoarm polymers based multivalent nanocarriers for efficient and targeted drug delivery. Chem Commun (Camb) 2011; 47:9572-87. [DOI: 10.1039/c1cc11981h] [Citation(s) in RCA: 110] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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47
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Dosio F, Stella B, Arpicco S, Cattel L. Macromolecules as taxane delivery systems. Expert Opin Drug Deliv 2010; 8:33-55. [DOI: 10.1517/17425247.2011.541437] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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48
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Mikhail AS, Allen C. Poly(ethylene glycol)-b-poly(epsilon-caprolactone) micelles containing chemically conjugated and physically entrapped docetaxel: synthesis, characterization, and the influence of the drug on micelle morphology. Biomacromolecules 2010; 11:1273-80. [PMID: 20369884 DOI: 10.1021/bm100073s] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Docetaxel (DTX), a chemotherapeutic agent, was coupled to the hydrophobic block of poly(ethylene glycol)-b-poly(epsilon-caprolactone) (PEG-b-PCL) copolymers synthesized by metal free ring-opening polymerization. Synthesis of the copolymers and the copolymer-drug conjugate (PEG-b-PCL-DTX) were confirmed by (1)H NMR and GPC analyses. The PEG-b-PCL-DTX conjugates had a approximately 1:3 drug/copolymer ratio (w/w) and a low critical micelle concentration in aqueous solution (14 mg/L). Encapsulation of DTX in PEG-b-PCL-DTX micelles resulted in an 1840-fold increase in the aqueous solubility of the drug. Release of physically encapsulated DTX from PEG-b-PCL-DTX micelles was slower than drug release from PEG-b-PCL micelles due to the improved compatibility between DTX and the micelle core. Core-conjugated DTX was released over the course of one week indicating that PEG-b-PCL-DTX micelles have the capacity for sustained drug release in the absence of physically encapsulated drug. Importantly, conjugation of DTX to the core-forming block had a profound effect on the morphology of the copolymer aggregates.
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Affiliation(s)
- Andrew S Mikhail
- Leslie Dan Faculty of Pharmacy, Institute of Biomaterials and Biomedical Engineering, University of Toronto 144 College Street, Toronto, Ontario, Canada M5S 3M2
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49
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Suksiriworapong J, Sripha K, Junyaprasert VB. Synthesis and characterization of bioactive molecules grafted on poly(ɛ-caprolactone) by “click” chemistry. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.03.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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50
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Gou PF, Zhu WP, Shen ZQ. Synthesis, Self-Assembly, and Drug-Loading Capacity of Well-Defined Cyclodextrin-Centered Drug-Conjugated Amphiphilic A14B7 Miktoarm Star Copolymers Based on Poly(ε-caprolactone) and Poly(ethylene glycol). Biomacromolecules 2010; 11:934-43. [DOI: 10.1021/bm901371p] [Citation(s) in RCA: 135] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peng-Fei Gou
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Wei-Pu Zhu
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhi-Quan Shen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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