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Yang D, Li Z, Zhang Y, Chen X, Liu M, Yang C. Design of Dual-Targeted pH-Sensitive Hybrid Polymer Micelles for Breast Cancer Treatment: Three Birds with One Stone. Pharmaceutics 2023; 15:1580. [PMID: 37376029 DOI: 10.3390/pharmaceutics15061580] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/11/2023] [Accepted: 05/19/2023] [Indexed: 06/29/2023] Open
Abstract
Breast cancer has a high prevalence in the world and creates a substantial socio-economic impact. Polymer micelles used as nano-sized polymer therapeutics have shown great advantages in treating breast cancer. Here, we aim to develop a dual-targeted pH-sensitive hybrid polymer (HPPF) micelles for improving the stability, controlled-release ability and targeting ability of the breast cancer treatment options. The HPPF micelles were constructed using the hyaluronic acid modified polyhistidine (HA-PHis) and folic acid modified Plannick (PF127-FA), which were characterized via 1H NMR. The optimized mixing ratio (HA-PHis:PF127-FA) was 8:2 according to the change of particle size and zeta potential. The stability of HPPF micelles were enhanced with the higher zeta potential and lower critical micelle concentration compared with HA-PHis and PF127-FA. The drug release percents significantly increased from 45% to 90% with the decrease in pH, which illustrated that HPPF micelles were pH-sensitive owing to the protonation of PHis. The cytotoxicity, in vitro cellular uptake and in vivo fluorescence imaging experiments showed that HPPF micelles had the highest targeting ability utilizing FA and HA, compared with HA-PHis and PF127-FA. Thus, this study constructs an innovative nano-scaled drug delivery system, which provides a new strategy for the treatment of breast cancer.
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Affiliation(s)
- Degong Yang
- Department of Pharmacy, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Ziqing Li
- Department of Pharmacy, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Yinghui Zhang
- Department of Pharmaceutical Sciences, Jiamusi University, 258 Xuefu Road, Jiamusi 154007, China
| | - Xuejun Chen
- Department of Pharmacy, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | - Mingyuan Liu
- Department of Pharmaceutical Sciences, Jiamusi University, 258 Xuefu Road, Jiamusi 154007, China
| | - Chunrong Yang
- Department of Pharmacy, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
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Skrzypczak N, Przybylski P. Structural diversity and biological relevance of benzenoid and atypical ansamycins and their congeners. Nat Prod Rep 2022; 39:1678-1704. [PMID: 35262153 DOI: 10.1039/d2np00004k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Covering: 2011 to 2021The structural division of ansamycins, including those of atypical cores and different lengths of the ansa chains, is presented. Recently discovered benzenoid and atypical ansamycin scaffolds are presented in relation to their natural source and biosynthetic routes realized in bacteria as well as their muta and semisynthetic modifications influencing biological properties. To better understand the structure-activity relationships among benzenoid ansamycins structural aspects together with mechanisms of action regarding different targets in cells, are discussed. The most promising directions for structural optimizations of benzenoid ansamycins, characterized by predominant anticancer properties, were discussed in view of their potential medical and pharmaceutical applications. The bibliography of the review covers mainly years from 2011 to 2021.
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Affiliation(s)
- Natalia Skrzypczak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland.
| | - Piotr Przybylski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland.
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Multifunctional polymeric micellar nanomedicine in the diagnosis and treatment of cancer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112186. [PMID: 34082985 DOI: 10.1016/j.msec.2021.112186] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 02/07/2023]
Abstract
Polymeric micelles are a prevalent topic of research for the past decade, especially concerning their fitting ability to deliver drug and diagnostic agents. This delivery system offers outstanding advantages, such as biocompatibility, high loading efficiency, water-solubility, and good stability in biological fluids, to name a few. The multifunctional polymeric micellar architect offers the added capability to adapt its surface to meet the looked-for clinical needs. This review cross-talks the recent reports, proof-of-concept studies, patents, and clinical trials that utilize polymeric micellar family architectures concerning cancer targeted delivery of anticancer drugs, gene therapeutics, and diagnostic agents. The manuscript also expounds on the underlying opportunities, allied challenges, and ways to resolve their bench-to-bedside translation for allied clinical applications.
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Understanding the burst release phenomenon: toward designing effective nanoparticulate drug-delivery systems. Ther Deliv 2020; 12:21-36. [PMID: 33353422 DOI: 10.4155/tde-2020-0099] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Burst release of encapsulated drug with release of a significant fraction of payload into release medium within a short period, both in vitro and in vivo, remains a challenge for translation. Such unpredictable and uncontrolled release is often undesirable, especially from the perspective of developing sustained-release formulations. Moreover, a brisk release of the payload upsets optimal release kinetics. This account strives toward understanding burst release noticed in nanocarriers and investigates its causes. Various mathematical models to explain such untimely release were also examined, including their strengths and weaknesses. Finally, the account revisits current techniques of limiting burst release from nanocarriers and prioritizes future directions that harbor potential of fruitful translation by reducing such occurrences.
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Cui M, Jin M, Han M, Zang Y, Li C, Zhang D, Huang W, Gao Z, Yin X. Improved Antitumor Outcomes for Colon Cancer Using Nanomicelles Loaded with the Novel Antitumor Agent LA67. Int J Nanomedicine 2020; 15:3563-3576. [PMID: 32547014 PMCID: PMC7245463 DOI: 10.2147/ijn.s241577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 04/08/2020] [Indexed: 01/04/2023] Open
Abstract
Background LA67 is a derivative of triptolide that exhibits strong antitumor activity. This derivative has a better safety profile than triptolide, but is limited by poor aqueous solubility. Aim and Methods To improve solubility and further increase therapeutic efficacy, we prepared LA67-loaded polymeric micelles (LA67-PMs) using a film hydration method. The physicochemical properties of LA67-PMs were investigated, and the antitumor activity of this formulation against Colon26 (C26) cancer cell line was evaluated in vitro and in vivo with LA67 as a control. Results Polymeric micelles containing LA67 had a particle size of 17.88 nm and a drug entrapment efficiency of 94.84%. This formulation dispersed completely in aqueous solution and exhibited slow, sustained release of LA67. Cellular uptake assay showed that LA67-PMs delivered LA67 to cancer cells with greater efficiency than free LA67, which resulted in increased LA67 accumulation in cancer cells. Cell counting kit 8 (CCK-8) assay showed that blank polymeric micelles (PMs) exhibited low toxicity and LA67-PMs exerted pronounced anti-proliferation effects against C26 cells. Furthermore, LA67-PMs induced apoptosis and repressed migration more effectively than free LA67. In vivo evaluation of antitumor activity showed that LA67-PMs inhibited tumor growth and distant organ metastasis to a greater extent than LA67, which resulted in improved survival rate. The potential mechanisms of these effects may have been induction of apoptosis, inhibition of cell proliferation, and neovascularization. Conclusion Our study showed that LA67-PMs may be a promising formulation for treatment of colon cancer.
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Affiliation(s)
- Minhu Cui
- Department of Gastroenterology, Yanbian University Hospital, Yanji 133000, Jilin, People's Republic of China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Mingji Jin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Mingfeng Han
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Yingda Zang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Chuangjun Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Dongming Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Wei Huang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Zhonggao Gao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Xuezhe Yin
- Department of Respiratory Medicine, Yanbian University Hospital, Yanji 133000, Jilin, People's Republic of China
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Peng Y, Bariwal J, Kumar V, Tan C, Mahato RI. Organic Nanocarriers for Delivery and Targeting of Therapeutic Agents for Cancer Treatment. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.201900136] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yang Peng
- Department of Pharmaceutical SciencesUniversity of Nebraska Medical Center Omaha NE 68198 USA
| | - Jitender Bariwal
- Department of Pharmaceutical SciencesUniversity of Nebraska Medical Center Omaha NE 68198 USA
| | - Virender Kumar
- Department of Pharmaceutical SciencesUniversity of Nebraska Medical Center Omaha NE 68198 USA
| | - Chalet Tan
- Department of Pharmaceutics and Drug DeliveryUniversity of Mississippi University MS 38677 USA
| | - Ram I. Mahato
- Department of Pharmaceutical SciencesUniversity of Nebraska Medical Center Omaha NE 68198 USA
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Villar-Alvarez E, Cambón A, Pardo A, Arellano L, Marcos AV, Pelaz B, Del Pino P, Bouzas Mosquera A, Mosquera VX, Almodlej A, Prieto G, Barbosa S, Taboada P. Combination of light-driven co-delivery of chemodrugs and plasmonic-induced heat for cancer therapeutics using hybrid protein nanocapsules. J Nanobiotechnology 2019; 17:106. [PMID: 31615570 PMCID: PMC6794818 DOI: 10.1186/s12951-019-0538-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 09/24/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Improving the water solubility of hydrophobic drugs, increasing their accumulation in tumor tissue and allowing their simultaneous action by different pathways are essential issues for a successful chemotherapeutic activity in cancer treatment. Considering potential clinical application in the future, it will be promising to achieve such purposes by developing new biocompatible hybrid nanocarriers with multimodal therapeutic activity. RESULTS We designed and characterised a hybrid nanocarrier based on human serum albumin/chitosan nanoparticles (HSA/chitosan NPs) able to encapsulate free docetaxel (DTX) and doxorubicin-modified gold nanorods (DOXO-GNRs) to simultaneously exploit the complementary chemotherapeutic activities of both antineoplasic compounds together with the plasmonic optical properties of the embedded GNRs for plasmonic-based photothermal therapy (PPTT). DOXO was assembled onto GNR surfaces following a layer-by-layer (LbL) coating strategy, which allowed to partially control its release quasi-independently release regarding DTX under the use of near infrared (NIR)-light laser stimulation of GNRs. In vitro cytotoxicity experiments using triple negative breast MDA-MB-231 cancer cells showed that the developed dual drug encapsulation approach produces a strong synergistic toxic effect to tumoral cells compared to the administration of the combined free drugs; additionally, PPTT enhances the cytostatic efficacy allowing cell toxicities close to 90% after a single low irradiation dose and keeping apoptosis as the main cell death mechanism. CONCLUSIONS This work demonstrates that by means of a rational design, a single hybrid nanoconstruct can simultaneously supply complementary therapeutic strategies to treat tumors and, in particular, metastatic breast cancers with good results making use of its stimuli-responsiveness as well as its inherent physico-chemical properties.
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Affiliation(s)
- E Villar-Alvarez
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| | - A Cambón
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - A Pardo
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - L Arellano
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - A V Marcos
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - B Pelaz
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
- Centro Singular de Investigación en Química Biológica y Materiales Moleculares (CiQUS), Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - P Del Pino
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
- Centro Singular de Investigación en Química Biológica y Materiales Moleculares (CiQUS), Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - A Bouzas Mosquera
- Departamento de Cirugía Cardíaca, Complexo Hospitalario Universitario A Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
| | - V X Mosquera
- Departamento de Cirugía Cardíaca, Complexo Hospitalario Universitario A Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
| | - A Almodlej
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - G Prieto
- Grupo de Biofísica e Interfases, Departamento de Física Aplicada, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - S Barbosa
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
- Instituto de Investigaciones Sanitarias (IDIS) y Agrupación Estratégica de Materiales, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - P Taboada
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
- Instituto de Investigaciones Sanitarias (IDIS) y Agrupación Estratégica de Materiales, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
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Wang Y, Liu Z, Li T, Chen L, Lyu J, Li C, Lin Y, Hao N, Zhou M, Zhong Z. Enhanced Therapeutic Effect of RGD-Modified Polymeric Micelles Loaded With Low-Dose Methotrexate and Nimesulide on Rheumatoid Arthritis. Theranostics 2019; 9:708-720. [PMID: 30809303 PMCID: PMC6376478 DOI: 10.7150/thno.30418] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 12/24/2018] [Indexed: 01/15/2023] Open
Abstract
Angiogenesis plays an essential role in the progression of rheumatoid arthritis (RA). RGD peptide shows high affinity and selectivity for integrin αvβ3, which is one of the most extensively examined target of angiogenesis. Nimesulide could improve the anti-rheumatic profile of methotrexate. But the clinical application was limited due to water-insolubility of both methotrexate and nimesulide and lacking targeting ability. Therefore, this study aimed to design a targeted drug delivery system of micelles mediated by RGD plus the passive targeting of micelles to solve the application problems of methotrexate and nimesulide (M/N), and thus enhance their combined therapeutic effect on RA. Methods: RGD was conjugated with NHS-PEG-PLA to form RGD-PEG-PLA for the preparation of RGD-modified drug-loaded micelles (R-M/N-PMs). The size and zeta potential of micelles were measured by dynamic light scattering. Morphology was detected by transmission electron microscopy. The inhibition effect of R-M/N-PMs on angiogenesis was assessed by the chick chorioallantoic membrane assay. The real-time fluorescence imaging analysis was conducted to examine the in vivo distribution of the fluorescence-labeled R-M/N-PMs. Rats arthritis model induced by Freund's adjuvant was used to evaluate the in vivo anti-inflammatory efficacy of R-M/N-PMs. Results: The in vitro study indicated successful development of R-M/N-PMs. R-M/N-PMs could markedly suppress the angiogenesis of chick embryos. The fluorescence-labeled R-M/N-PMs mainly accumulated in arthritic joints. RGD enhanced the targeting ability of micelles and thus promoted retention of micelles in arthritic joints. Moreover, R-M/N-PMs significantly alleviated the joint swelling while reducing bone erosion and serum levels of inflammatory cytokines. It helped to recover the bone microstructure of arthritic rats. Conclusion: Our results confirmed that the targeted delivery of the combination of a low dose of methotrexate and nimesulide mediated by RGD-modified polymeric micelles could enhance the therapeutic effect on rheumatoid arthritis. These findings provide a promising potential for the clinical therapy of rheumatoid arthritis.
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Affiliation(s)
- Yunlong Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Department of Pharmacy, Nanchong Central Hospital, The Second Clinical Medical College of North Sichuan Medical College, Nanchong 637000, China
| | - Zhongbing Liu
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Ting Li
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Lin Chen
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Jiayao Lyu
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Chunhong Li
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Yan Lin
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Na Hao
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Meiling Zhou
- Department of Pharmacy, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Zhirong Zhong
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Institute of Cardiovascular Research of Southwest Medical University, Luzhou 646000, China
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Li L, Wang J, Kong H, Zeng Y, Liu G. Functional biomimetic nanoparticles for drug delivery and theranostic applications in cancer treatment. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2018; 19:771-790. [PMID: 30815042 PMCID: PMC6383616 DOI: 10.1080/14686996.2018.1528850] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/24/2018] [Accepted: 09/24/2018] [Indexed: 05/17/2023]
Abstract
Nanotechnology has been extensively utilized in the design and development of powerful strategies for drug delivery and cancer theranostic. Nanoplatforms as a drug delivery system have many advantages such as in vivo imaging, combined drug delivery, extended circulation time, and systemic controlled release. The functional biomimetic drug delivery could be realized by incorporating stimuli-responsive (pH, temperature, redox potential, etc.) properties into the nanocarrier system, allowing them to bypass biological barriers and arrive at the targeted area. In this review, we discuss the role of internal stimuli-responsive nanocarrier system for imaging and drug delivery in cancer therapy. The development of internal stimuli-responsive nanoparticles is highlighted for precision drug delivery applications, with a particular focus on in vivo imaging, drug release performance, and therapeutic benefits.
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Affiliation(s)
- Lei Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Junqing Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Hangru Kong
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
| | - Yun Zeng
- Department of Pharmacology, Xiamen Medical College, Xiamen, China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, China
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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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11
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Teng W, Jia F, Han H, Qin Z, Jin Q, Ji J. Polyamino acid-based gemcitabine nanocarriers for targeted intracellular drug delivery. Polym Chem 2017. [DOI: 10.1039/c7py00443e] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In the present study, we have successfully fabricated a biocompatible polyamino acid-based nanocarrier with reduction-sensitivity and targeting ability for gemcitabine (GEM) delivery.
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Affiliation(s)
- Wenzhuo Teng
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Fan Jia
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Haijie Han
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Zhihui Qin
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Qiao Jin
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
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12
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Zhou Y, Dong Y, Huang G, Wang Y, Huang X, Zhang F, Boothman DA, Gao J, Liang W. Lysosome-oriented, dual-stage pH-responsive polymeric micelles for β-Lapachone delivery. J Mater Chem B 2016; 4:7429-7440. [PMID: 28580145 PMCID: PMC5452003 DOI: 10.1039/c6tb02049f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
β-Lapachone (β-lap), a novel anticancer agent, is bioactivated by NADP(H):quinone oxidoreductase 1 (NQO1), an enzyme over-expressed in numerous tumors, including lung, pancreas, breast, and prostate cancers. Fast renal clearance and methemaglobinemia / hemolytic side-effects from the clinical formulation (β-lap-hydroxyl propyl-β-cyclodextrin complex) hindered its clinical translation. Here, we investigated a dual model pH responsive polymers for β-lap delivery. Three pH-sensitive linkages, including acylhydrazone, ketal and imine bonds for β-lap prodrug syntheses result in an aryl imine linkage the most optimal linkage. The conversion to β-lap was 2.8%, 4.5% and 100% at pH 7.4, 6.5 and 5.0 in 8 h, respectively. β-lap aryl imine prodrug conjugated ultra pH-sensitive (UPS) polymer reached high β-lap loading density (8.3%) and exhibited dual-stages responsiveness to pH variation. In pHs under pHt, at stage I, micelle immediately dissociation and subsequently entering stage II, micelles start quickly release β-lap. In vitro release study showed that the micelles constantly release β-lap (14.9 ± 0.1%) at pHs above pHt in 72 h, whereas boosted release of β-lap (79.4 ± 1.2%) at pH 5.0. Micelle intracellular distribution predominantly in the lysosome organelle guaranteed their pH responsive dissociation and subsequently β-lap controlled release. The M-P micelles retained NQO1-dependent cytotoxicity in A549 lung cancer cells, similar to free drug in both efficacy and mechanism of cell death. The lysosome-oriented dual-stage ultra pH responsive β-lap prodrug micelles potentially offer an alternative nanotherapeutic strategy for lung, as well as other NQO1+ cancer therapies.
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Affiliation(s)
- Yinjian Zhou
- Protein and Peptide Pharmaceutical Laboratory, Institute of
Biophysics, Chinese Academy of Sciences, Beijing, China
- Department of Pharmacology, Harold C. Simmons Comprehensive
Cancer Center, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd,
Dallas, Texas 75390
| | - Ying Dong
- Laboratory of Molecular Stresses, Departments of
Pharmacology and Radiation Oncology, Harold C. Simmons Comprehensive Cancer Center,
UT Southwestern Medical Center at Dallas, 6001 Forest Park Drive, ND2.210K Texas
75390-8807
| | - Gang Huang
- Department of Pharmacology, Harold C. Simmons Comprehensive
Cancer Center, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd,
Dallas, Texas 75390
| | - Yiguang Wang
- Department of Pharmacology, Harold C. Simmons Comprehensive
Cancer Center, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd,
Dallas, Texas 75390
| | - Xiaonan Huang
- Department of Pharmacology, Harold C. Simmons Comprehensive
Cancer Center, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd,
Dallas, Texas 75390
| | - Fayun Zhang
- Protein and Peptide Pharmaceutical Laboratory, Institute of
Biophysics, Chinese Academy of Sciences, Beijing, China
| | - David A. Boothman
- Laboratory of Molecular Stresses, Departments of
Pharmacology and Radiation Oncology, Harold C. Simmons Comprehensive Cancer Center,
UT Southwestern Medical Center at Dallas, 6001 Forest Park Drive, ND2.210K Texas
75390-8807
| | - Jinming Gao
- Department of Pharmacology, Harold C. Simmons Comprehensive
Cancer Center, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd,
Dallas, Texas 75390
| | - Wei Liang
- Protein and Peptide Pharmaceutical Laboratory, Institute of
Biophysics, Chinese Academy of Sciences, Beijing, China
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13
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Lin YX, Wang Y, Qiao SL, An HW, Zhang RX, Qiao ZY, Rajapaksha RPYJ, Wang L, Wang H. pH-Sensitive Polymeric Nanoparticles Modulate Autophagic Effect via Lysosome Impairment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:2921-31. [PMID: 27120078 DOI: 10.1002/smll.201503709] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 03/02/2016] [Indexed: 05/23/2023]
Abstract
In drug delivery systems, pH-sensitive polymers are commonly used as drug carriers, and significant efforts have been devoted to the aspects of controlled delivery and release of drugs. However, few studies address the possible autophagic effects on cells. Here, for the first time, using a fluorescent autophagy-reporting cell line, this study evaluates the autophagy-induced capabilities of four types of pH-sensitive polymeric nanoparticles (NPs) with different physical properties, including size, surface modification, and pH-sensitivity. Based on experimental results, this study concludes that pH-sensitivity is one of the most important factors in autophagy induction. In addition, this study finds that variation of concentration of NPs could cause different autophagic effect, i.e., low concentration of NPs induces autophagy in an mTOR-dependent manner, but high dose of NPs leads to autophagic cell death. Identification of this tunable autophagic effect offers a novel strategy for enhancing therapeutic effect in cancer therapy through modulation of autophagy.
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Affiliation(s)
- Yao-Xin Lin
- CAS Center for Excellence in Nanoscience CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
- University of Chinese Academy of Science (UCAS), No.19A Yuquan Road, Beijing, China
| | - Yi Wang
- CAS Center for Excellence in Nanoscience CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
- University of Chinese Academy of Science (UCAS), No.19A Yuquan Road, Beijing, China
| | - Sheng-Lin Qiao
- CAS Center for Excellence in Nanoscience CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
- University of Chinese Academy of Science (UCAS), No.19A Yuquan Road, Beijing, China
| | - Hong-Wei An
- CAS Center for Excellence in Nanoscience CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
- University of Chinese Academy of Science (UCAS), No.19A Yuquan Road, Beijing, China
| | - Ruo-Xin Zhang
- CAS Center for Excellence in Nanoscience CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
| | - Zeng-Ying Qiao
- CAS Center for Excellence in Nanoscience CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
| | - R P Y J Rajapaksha
- CAS Center for Excellence in Nanoscience CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
| | - Lei Wang
- CAS Center for Excellence in Nanoscience CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
| | - Hao Wang
- CAS Center for Excellence in Nanoscience CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
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14
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Nanoparticle-based combination drug delivery systems for synergistic cancer treatment. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2016. [DOI: 10.1007/s40005-016-0252-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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15
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Ulbrich K, Holá K, Šubr V, Bakandritsos A, Tuček J, Zbořil R. Targeted Drug Delivery with Polymers and Magnetic Nanoparticles: Covalent and Noncovalent Approaches, Release Control, and Clinical Studies. Chem Rev 2016; 116:5338-431. [DOI: 10.1021/acs.chemrev.5b00589] [Citation(s) in RCA: 1120] [Impact Index Per Article: 140.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Karel Ulbrich
- Institute
of Macromolecular Chemistry, The Czech Academy of Sciences, v.v.i., Heyrovsky Square 2, 162 06 Prague 6, Czech Republic
| | - Kateřina Holá
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Vladimir Šubr
- Institute
of Macromolecular Chemistry, The Czech Academy of Sciences, v.v.i., Heyrovsky Square 2, 162 06 Prague 6, Czech Republic
| | - Aristides Bakandritsos
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Jiří Tuček
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Radek Zbořil
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
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16
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Micellar carriers for the delivery of multiple therapeutic agents. Colloids Surf B Biointerfaces 2015; 135:291-308. [PMID: 26263217 DOI: 10.1016/j.colsurfb.2015.07.046] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 07/16/2015] [Accepted: 07/19/2015] [Indexed: 12/27/2022]
Abstract
Multi-drug therapy is described as a simultaneous or sequential administration of two or more drugs with similar or different mechanisms of action and is recognized as a more efficient solution to combat successfully, various ailments. Polymeric micelles (PMs) are self-assemblies of block copolymers providing numerous opportunities for drug delivery. To date various micellar formulations were studied for delivery of drugs, nutraceuticals and genes; a few of them are in clinical trials. It was observed that there is an immense need for the development of PMs embedding multiple therapeutic agents to combat various ailments, including cancers, HIV/AIDS, malaria, multiple sclerosis, hypertension, infectious diseases, cardiovascular and metabolic diseases, immune disorders and many psychiatric disorders. Several combinations of drug-drug, drug-nutraceutical, drug-gene and drug-siRNA explored to date are detailed in this review, with a special emphasis on their potential and future perspectives. A summary of various preparation methods, characterization techniques and applications of PMs are also provided. This review presents a holistic approach on multi-drug delivery using micellar carriers and emphasizes on the development of therapeutic hybrids embedding novel combinations for safer and effective therapy.
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17
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Lin YX, Gao YJ, Wang Y, Qiao ZY, Fan G, Qiao SL, Zhang RX, Wang L, Wang H. pH-Sensitive Polymeric Nanoparticles with Gold(I) Compound Payloads Synergistically Induce Cancer Cell Death through Modulation of Autophagy. Mol Pharm 2015; 12:2869-78. [DOI: 10.1021/acs.molpharmaceut.5b00060] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yao-Xin Lin
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
- University of Chinese Academy of Science (UCAS), No. 19A Yuquan Road, Beijing, China
| | - Yu-Juan Gao
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
| | - Yi Wang
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
- University of Chinese Academy of Science (UCAS), No. 19A Yuquan Road, Beijing, China
| | - Zeng-Ying Qiao
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
| | - Gang Fan
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
| | - Sheng-Lin Qiao
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
- University of Chinese Academy of Science (UCAS), No. 19A Yuquan Road, Beijing, China
| | - Ruo-Xin Zhang
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
| | - Lei Wang
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
| | - Hao Wang
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, China
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18
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Cho H, Lai TC, Tomoda K, Kwon GS. Polymeric micelles for multi-drug delivery in cancer. AAPS PharmSciTech 2015; 16:10-20. [PMID: 25501872 DOI: 10.1208/s12249-014-0251-3] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 11/25/2014] [Indexed: 01/16/2023] Open
Abstract
Drug combinations are common in cancer treatment and are rapidly evolving, moving beyond chemotherapy combinations to combinations of signal transduction inhibitors. For the delivery of drug combinations, i.e., multi-drug delivery, major considerations are synergy, dose regimen (concurrent versus sequential), pharmacokinetics, toxicity, and safety. In this contribution, we review recent research on polymeric micelles for multi-drug delivery in cancer. In concurrent drug delivery, polymeric micelles deliver multi-poorly water-soluble anticancer agents, satisfying strict requirements in solubility, stability, and safety. In sequential drug delivery, polymeric micelles participate in pretreatment strategies that "prime" solid tumors and enhance the penetration of secondarily administered anticancer agent or nanocarrier. The improved delivery of multiple poorly water-soluble anticancer agents by polymeric micelles via concurrent or sequential regimens offers novel and interesting strategies for drug combinations in cancer treatment.
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19
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Amphiphilic poly(amino acid) based micelles applied to drug delivery: The in vitro and in vivo challenges and the corresponding potential strategies. J Control Release 2015; 199:84-97. [DOI: 10.1016/j.jconrel.2014.12.012] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 12/09/2014] [Accepted: 12/10/2014] [Indexed: 01/08/2023]
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20
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Villar-Alvarez E, Figueroa-Ochoa E, Barbosa S, Soltero JFA, Taboada P, Mosquera V. Reverse poly(butylene oxide)–poly(ethylene oxide)–poly(butylene oxide) block copolymers with lengthy hydrophilic blocks as efficient single and dual drug-loaded nanocarriers with synergistic toxic effects on cancer cells. RSC Adv 2015. [DOI: 10.1039/c5ra07296d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Reverse triblock copolymer micelles with lengthy polyethylene oxide blocks as efficient sustained dual drug-loaded nanocarriers.
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Affiliation(s)
- E. Villar-Alvarez
- Grupo de Física de Coloides y Polímeros
- Departamento de Física de la Materia Condensada
- Universidad de Santiago de Compostela
- 15782-Santiago de Compostela
- Spain
| | - E. Figueroa-Ochoa
- Laboratorio de Reología
- Departamento de Ingeniería Química
- CUECI, Universidad de Guadalajara
- 44430 Guadalajara
- Mexico
| | - S. Barbosa
- Grupo de Física de Coloides y Polímeros
- Departamento de Física de la Materia Condensada
- Universidad de Santiago de Compostela
- 15782-Santiago de Compostela
- Spain
| | - J. F. A. Soltero
- Laboratorio de Reología
- Departamento de Ingeniería Química
- CUECI, Universidad de Guadalajara
- 44430 Guadalajara
- Mexico
| | - P. Taboada
- Grupo de Física de Coloides y Polímeros
- Departamento de Física de la Materia Condensada
- Universidad de Santiago de Compostela
- 15782-Santiago de Compostela
- Spain
| | - V. Mosquera
- Grupo de Física de Coloides y Polímeros
- Departamento de Física de la Materia Condensada
- Universidad de Santiago de Compostela
- 15782-Santiago de Compostela
- Spain
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21
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Cheng W, Gu L, Ren W, Liu Y. Stimuli-responsive polymers for anti-cancer drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:600-8. [DOI: 10.1016/j.msec.2014.05.050] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 05/23/2014] [Indexed: 12/11/2022]
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22
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Howard MD, Hood ED, Greineder CF, Alferiev IS, Chorny M, Muzykantov V. Targeting to endothelial cells augments the protective effect of novel dual bioactive antioxidant/anti-inflammatory nanoparticles. Mol Pharm 2014; 11:2262-70. [PMID: 24877560 PMCID: PMC4086738 DOI: 10.1021/mp400677y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oxidative stress and inflammation are intertwined contributors to numerous acute vascular pathologies. A novel dual bioactive nanoparticle with antioxidant/anti-inflammatory properties was developed based on the interactions of tocopherol phosphate and the manganese porphyrin SOD mimetic, MnTMPyP. The size and drug incorporation efficiency were shown to be dependent on the amount of MnTMPyP added as well as the choice of surfactant. MnTMPyP was shown to retain its SOD-like activity while in intact particles and to release in a slow and controlled manner. Conjugation of anti-PECAM antibody to the nanoparticles provided endothelial targeting and potentiated nanoparticle-mediated suppression of inflammatory activation of these cells manifested by expression of VCAM, E-selectin, and IL-8. This nanoparticle technology may find applicability with drug combinations relevant for other pathologies.
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Affiliation(s)
- Melissa D Howard
- Department of Pharmacology and Center for Targeted Therapeutics and Translational Nanomedicine, Perelman School of Medicine, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
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23
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Studies on antineoplastic effect by adjusting ratios of targeted-ligand and antitumor drug. CHINESE JOURNAL OF POLYMER SCIENCE 2014. [DOI: 10.1007/s10118-014-1432-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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24
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Duan Z, Gao YJ, Qiao ZY, Fan G, Liu Y, Zhang D, Wang H. A photoacoustic approach for monitoring the drug release of pH-sensitive poly(β-amino ester)s. J Mater Chem B 2014; 2:6271-6282. [DOI: 10.1039/c4tb00319e] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we prepared PEG modified poly(β-amino ester) graft copolymers with pH-sensitive properties. Doxorubicin (DOX) and squaraine (SQ) dye as a photoacoustic tomography (PAT) reporter molecule were loaded into the hydrophobic core of polymeric micelles, and their release profiles investigated using the PAT technique.
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Affiliation(s)
- Zhongyu Duan
- School of Chemical Engineering & Technology
- Hebei University of Technology
- Tianjin, China
| | - Yu-Juan Gao
- School of Chemical Engineering & Technology
- Hebei University of Technology
- Tianjin, China
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology (NCNST)
| | - Zeng-Ying Qiao
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology (NCNST)
- Beijing, China
| | - Gang Fan
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology (NCNST)
- Beijing, China
| | - Ya Liu
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology (NCNST)
- Beijing, China
| | - Di Zhang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology (NCNST)
- Beijing, China
| | - Hao Wang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology (NCNST)
- Beijing, China
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25
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Kowalczuk A, Trzcinska R, Trzebicka B, Müller AH, Dworak A, Tsvetanov CB. Loading of polymer nanocarriers: Factors, mechanisms and applications. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.10.004] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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26
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Qiao ZY, Qiao SL, Fan G, Fan YS, Chen Y, Wang H. One-pot synthesis of pH-sensitive poly(RGD-co-β-amino ester)s for targeted intracellular drug delivery. Polym Chem 2014. [DOI: 10.1039/c3py01117h] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Nguyen DH, Bae JW, Choi JH, Lee JS, Park KD. Bioreducible cross-linked Pluronic micelles: pH-triggered release of doxorubicin and folate-mediated cellular uptake. J BIOACT COMPAT POL 2013. [DOI: 10.1177/0883911513491642] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Bioreducible are described here, cross-linked Pluronic micelles carrying doxorubicin (DOX) for folate-mediated cancer targeting. The amine-terminated Pluronic® F-127 was functionalized by grafting acrylic acid (AA) to the hydrophobic block (AA-Pluronic-NH2). Folic acid (FA), hydrazine (H), and cystamine (C) were sequentially conjugated to AA-Pluronic-NH2, followed by DOX conjugation via an acid-labile hydrazone bond (FA-Pluronic-C/H-DOX). The DOX content was approximately 143 µg/mg of polymer. We prepared bioreducible cross-linked micelles using FA-Pluronic-C/H-DOX, which had a diameter of 156.1 nm. After incubation for 24 h with 10 mM of dithiothreitol, the micelle size decreased dramatically to 87.6 nm with a broad distribution, indicating that disulfide bonds in the micelle core were reductively cleaved. In vitro release data showed that the conjugated DOX was released slowly from the FA-Pluronic C/H-DOX micelles at pH 7.4, whereas there was a rapid DOX release at pH 5.2. Confocal images of HeLa cells showed enhanced cellular uptake of FA-Pluronic-C/H-DOX micelles as compared to nontargeted Pluronic-C/H-DOX micelles. The FA-Pluronic-C/H-DOX micelles killed more cells than the nontargeted micelles, but the cytotoxic effect was not as significant as free DOX. Additionally, micelles without DOX were not cytotoxic. On the basis of these results, pH- and redox potential–responsive FA-Pluronic-C/H-DOX micelles could potentially function as cancer-targeted and controlled DOX delivery systems.
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Affiliation(s)
- Dai Hai Nguyen
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Jin Woo Bae
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Jong Hoon Choi
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Jung Seok Lee
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Ki Dong Park
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
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28
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Guo H, Lai Q, Wang W, Wu Y, Zhang C, Liu Y, Yuan Z. Functional alginate nanoparticles for efficient intracellular release of doxorubicin and hepatoma carcinoma cell targeting therapy. Int J Pharm 2013; 451:1-11. [PMID: 23618965 DOI: 10.1016/j.ijpharm.2013.04.025] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 03/25/2013] [Accepted: 04/09/2013] [Indexed: 01/01/2023]
Abstract
In order to efficiently deliver chemotherapy drugs into hepatoma cells, a pH-sensitive and liver-targeted drug delivery system (glycyrrhetinic acid-modified alginate/doxorubicin-modified alginate complex nanoparticles), termed GA-ALG/DOX-ALG NPs, was prepared. First, GA-ALG and DOX-ALG were synthesized, and then GA-ALG/DOX-ALG NPs self-assembled by mixing GA-ALG and DOX-ALG via dialysis. Properties of pH-sensitivity, biodistribution in mice, and antitumor activity against ectopic hepatoma tumors in the NPs were evaluated. DOX release from GA-ALG/DOX-ALG NPs showed pH-sensitivity; less than 10% of drugs were liberated at pH 7.4 within 9 d while 58.7% of DOX released at pH 4.0. The confocal laser scanning microscope (CLSM) experiment showed that GA-ALG/DOX-ALG NPs can respond to the endosomal/lysosomal environment and had pH-triggered intracellular releasing property. The area under the curve (AUC(0-∞)) and half-life (t(½)) in the liver of GA-ALG/DOX-ALG NPs were 1156.7 μg h/g and 34.3 h, respectively, which was 11.8- and 3.2-fold higher than that of the DOX·HCl group. Furthermore, the inhibition rate of tumor growth was 79.3% after treatment with GA-ALG/DOX-ALG NPs, which was much higher than that of the DOX·HCl (48.5%) and DOX-ALG NPs groups (62.7%). Importantly, no mice died in the GA-ALG/DOX-ALG NPs group, while the mortality rate was 40% in the DOX·HCl group.
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Affiliation(s)
- Hua Guo
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China
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29
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Sun Q, Radosz M, Shen Y. Rational Design of Translational Nanocarriers. FUNCTIONAL POLYMERS FOR NANOMEDICINE 2013. [DOI: 10.1039/9781849737388-00032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Qihang Sun
- Department of Chemical and Petroleum Engineering, Soft Materials Laboratory, University of WyomingLaramieWY 82071USA
| | - Maciej Radosz
- Department of Chemical and Petroleum Engineering, Soft Materials Laboratory, University of WyomingLaramieWY 82071USA
| | - Youqing Shen
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang UniversityHangzhou 310027P. R.
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30
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Sun Q, Wang J, Radosz M, Shen Y. Polymer-Based Prodrugs for Cancer Chemotherapy. FUNCTIONAL POLYMERS FOR NANOMEDICINE 2013. [DOI: 10.1039/9781849737388-00245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Qihang Sun
- Department of Chemical and Petroleum Engineering, Soft Materials Laboratory, University of WyomingLaramieWY
| | - Jinqiang Wang
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang UniversityHangzhou 310027P. R. China
| | - Maciej Radosz
- Department of Chemical and Petroleum Engineering, Soft Materials Laboratory, University of WyomingLaramieWY
| | - Youqing Shen
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang UniversityHangzhou 310027P. R. China
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31
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Mishra GP, Nguyen D, Alani AWG. Inhibitory Effect of Paclitaxel and Rapamycin Individual and Dual Drug-Loaded Polymeric Micelles in the Angiogenic Cascade. Mol Pharm 2013; 10:2071-8. [DOI: 10.1021/mp400122m] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Gyan P. Mishra
- Department of Pharmaceutical Sciences,
College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, United
States
| | - Duc Nguyen
- Department of Pharmaceutical Sciences,
College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, United
States
| | - Adam W. G. Alani
- Department of Pharmaceutical Sciences,
College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, United
States
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32
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Dong DW, Xiang B, Gao W, Yang ZZ, Li JQ, Qi XR. pH-responsive complexes using prefunctionalized polymers for synchronous delivery of doxorubicin and siRNA to cancer cells. Biomaterials 2013; 34:4849-59. [PMID: 23541420 DOI: 10.1016/j.biomaterials.2013.03.018] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 03/09/2013] [Indexed: 01/03/2023]
Abstract
A nanocarrier delivery system that can simultaneously deliver a chemotherapeutic drug and siRNA to the tumor is emerging as a promising treatment strategy for cancer treatment. In this study, a multifunctional PHD/PPF/siRNA complexes was developed by one-step assembly of prefunctionalized polymers: PEI-HZ-DOX (PHD) and PEI-PEG-Folate (PPF) with siRNA. The PHD, a conjugate of PEI (polyethylenimine) with doxorubicin (DOX) via a pH-responsive hydrazone linkage, enables pH-controlled drug release. The PPF, a tumor-targeting folate ligand conjugated to PEI using polyethyleneglycol (PEG) as a linker, enables immune evasion and cell-specific targeting. The prefunctionalized PHD and PPF as well as the self-assembly complexes reveals advantage on safety in further application for siRNA delivery. By exploiting distinct triple ratios of PHD, PPF and siRNA during nanocomplexes formulation, the folate surface density, DOX loading amount and siRNA complexation can be precisely and reproducibly changed. The studies showed that the complexes was capable of delivering siRNA and DOX to cancerous cells and release synchronously in cell by acid-triggered manner, i.e. hydrazone bond cleavage and endosome/lysosome escape using flow cytometry and confocal laser scanning microscopy analysis. The results highlight the potential for therapeutic gene silencing in vitro and in vivo using RT-PCR and non-invasive in vivo imaging systems. The PHD/PPF/siRNA complexes can increase DOX and siRNA accumulation in cancerous cells and decrease the nonspecific distribution in normal tissues by the combination of EPR effect of nanocarriers, pH-triggered drug release, folate-mediated targeted delivery, and synergistic action of DOX and siRNA.
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Affiliation(s)
- Da-Wen Dong
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Haidian District, Beijing 100191, PR China
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Binauld S, Stenzel MH. Acid-degradable polymers for drug delivery: a decade of innovation. Chem Commun (Camb) 2013; 49:2082-102. [DOI: 10.1039/c2cc36589h] [Citation(s) in RCA: 312] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Zhu S, Wonganan P, Lansakara-P DSP, O'Mary HL, Li Y, Cui Z. The effect of the acid-sensitivity of 4-(N)-stearoyl gemcitabine-loaded micelles on drug resistance caused by RRM1 overexpression. Biomaterials 2012; 34:2327-39. [PMID: 23261218 DOI: 10.1016/j.biomaterials.2012.11.053] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 11/27/2012] [Indexed: 01/18/2023]
Abstract
Chemoresistance is a major issue for most gemcitabine-related chemotherapies. The overexpression of ribonucleotide reductase subunit M1 (RRM1) plays a key role in gemcitabine resistance. In this study, we synthesized a new highly acid-sensitive amphiphilic micelle material by conjugating hydrophilic polyethylene glycol with a hydrophobic stearic acid derivative (C18) using a hydrazone bond, which was named as PHC-2. A lipophilic prodrug of gemcitabine, 4-(N)-stearoyl gemcitabine (GemC18), was loaded into micelles prepared with PHC-2, a previously synthesized less acid-sensitive PHC-1, and their acid-insensitive counterpart, PAC. GemC18 loaded in acid-sensitive micelles can overcome gemcitabine resistance, and GemC18 in the highly acid-sensitive PHC-2 micelles was more cytotoxic than in the less acid-sensitive PHC-1 micelles. Mechanistic studies revealed that upon cellular uptake and lysosomal delivery, GemC18 in the acid-sensitive micelles was released and hydrolyzed more efficiently. Furthermore, GemC18 loaded in the highly acid-sensitive PHC-2 micelles inhibited the expression of RRM1 and increased the level of gemcitabine triphosphate (dFdCTP) in gemcitabine resistant tumor cells. The strategy of delivering lipophilized nucleoside analogs using highly acid-sensitive micelles may represent a new platform technology to increase the antitumor activity of nucleoside analogs and to overcome tumor cell resistance to them.
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Affiliation(s)
- Saijie Zhu
- The University of Texas at Austin, College of Pharmacy, Pharmaceutics Division, Austin, TX 78712, United States
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Sun Q, Radosz M, Shen Y. Challenges in design of translational nanocarriers. J Control Release 2012; 164:156-69. [DOI: 10.1016/j.jconrel.2012.05.042] [Citation(s) in RCA: 169] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 05/24/2012] [Accepted: 05/26/2012] [Indexed: 01/21/2023]
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Cao P, Bae Y. Polymer nanoparticulate drug delivery and combination cancer therapy. Future Oncol 2012; 8:1471-80. [DOI: 10.2217/fon.12.139] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
This review describes the scientific background, current achievement and future perspective of combination therapy using polymer nanoparticle drug carriers in cancer treatment. Nanotechnology-based drug delivery is expected to dramatically change combination cancer therapy by controlling accumulation and distribution patterns of multiple drugs selectively in disease sites. Rationally designed polymer materials can produce functional nanoparticulate drug carriers that can be used in various biomedical applications. In comparison with conventional drug combination approaches, using polymer nanoparticle drug carriers appears to suppress tumor growth more efficiently, potentially overcoming multidrug resistance in many cancers. It also provides versatile combination options for a variety of therapeutic agents, molecular targeting agents and nucleotide drugs.
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Affiliation(s)
- Pengxiao Cao
- Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, USA
| | - Younsoo Bae
- Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, USA
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Dong DW, Tong SW, Qi XR. Comparative studies of polyethylenimine-doxorubicin conjugates with pH-sensitive and pH-insensitive linkers. J Biomed Mater Res A 2012; 101:1336-44. [DOI: 10.1002/jbm.a.34450] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 08/24/2012] [Accepted: 09/11/2012] [Indexed: 01/15/2023]
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Lee HJ, Bae Y. Pharmaceutical Differences Between Block Copolymer Self-Assembled and Cross-Linked Nanoassemblies as Carriers for Tunable Drug Release. Pharm Res 2012; 30:478-88. [DOI: 10.1007/s11095-012-0893-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Accepted: 09/24/2012] [Indexed: 12/12/2022]
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Rationally engineered nanoparticles target multiple myeloma cells, overcome cell-adhesion-mediated drug resistance, and show enhanced efficacy in vivo. Blood Cancer J 2012; 2:e64. [PMID: 22829966 PMCID: PMC3346680 DOI: 10.1038/bcj.2012.10] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Accepted: 02/28/2012] [Indexed: 12/24/2022] Open
Abstract
In the continuing search for effective cancer treatments, we report the rational
engineering of a multifunctional nanoparticle that combines traditional
chemotherapy with cell targeting and anti-adhesion functionalities. Very late
antigen-4 (VLA-4) mediated adhesion of multiple myeloma (MM) cells to bone
marrow stroma confers MM cells with cell-adhesion-mediated drug resistance
(CAM-DR). In our design, we used micellar nanoparticles as dynamic
self-assembling scaffolds to present VLA-4-antagonist peptides and doxorubicin
(Dox) conjugates, simultaneously, to selectively target MM cells and to overcome
CAM-DR. Dox was conjugated to the nanoparticles through an acid-sensitive
hydrazone bond. VLA-4-antagonist peptides were conjugated via a multifaceted
synthetic procedure for generating precisely controlled number of targeting
functionalities. The nanoparticles were efficiently internalized by MM cells and
induced cytotoxicity. Mechanistic studies revealed that nanoparticles induced
DNA double-strand breaks and apoptosis in MM cells. Importantly, multifunctional
nanoparticles overcame CAM-DR, and were more efficacious than Dox when MM cells
were cultured on fibronectin-coated plates. Finally, in a MM xenograft model,
nanoparticles preferentially homed to MM tumors with ∼10 fold more drug
accumulation and demonstrated dramatic tumor growth inhibition with a reduced
overall systemic toxicity. Altogether, we demonstrate the disease driven
engineering of a nanoparticle-based drug delivery system, enabling the model of
an integrative approach in the treatment of MM.
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Intracellular nucleic acid interactions facilitated by quantum dots: conceptualizing theranostics. Ther Deliv 2012; 3:479-99. [DOI: 10.4155/tde.12.15] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The concept of theranostics arises from the unification of both diagnostic and therapeutic applications into a single package. The implementation of nanoparticles, such as semiconductor quantum dots (QDs), to achieve theranostic applications, offers great potential for development of methods that are suitable for personalized medicine. Researchers have taken advantage of the physiochemical properties of QDs to elicit novel bioconjugation techniques that enable the attachment of multifunctional moieties on the surface of QDs. In this review, the diagnostic and therapeutic applications of QDs that feature the use of nucleic acids are highlighted with a particular emphasis on the possibility of combinatorial applications. Nucleic acid research is of particular interest for gene therapy, and is relevant to the understanding of gene regulation pathways and gene expression dynamics. Recent toxicity studies featuring multifunctional QDs are also examined. Future perspectives discussing the expected development of this field conclude the article.
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Drug Release Patterns and Cytotoxicity of PEG-poly(aspartate) Block Copolymer Micelles in Cancer Cells. Pharm Res 2012; 29:1755-67. [DOI: 10.1007/s11095-012-0697-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2011] [Accepted: 01/27/2012] [Indexed: 12/22/2022]
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Ponta A, Akter S, Bae Y. Degradable Cross-Linked Nanoassemblies as Drug Carriers for Heat Shock Protein 90 Inhibitor 17-N-Allylamino-17-demethoxy-geldanamycin. Pharmaceuticals (Basel) 2011; 4:1281-1292. [PMID: 27721325 PMCID: PMC4060124 DOI: 10.3390/ph4101281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 09/07/2011] [Accepted: 09/19/2011] [Indexed: 12/30/2022] Open
Abstract
Cross-linked nanoassemblies (CNAs) with a degradable core were prepared for sustained release of 17-N-allylamino-17-demethoxygeldanamycin (17-AAG), a potent inhibitor of heat shock protein 90 (HSP90). The particle size of CNAs ranged between 100 and 250 nm, which changed depending on the cross-linking yields and drug entrapment method. CNAs with a 1% cross-linking yield entrapped 17-AAG in aqueous solutions, yet degraded in 3 hrs. CNAs entrapped 5.2 weight% of 17-AAG as the cross-linking yield increased to 10%, retaining more than 80% of particles for 24 hrs. CNAs with drugs entrapped after the cross-linking reactions were 100 nm and remained stable in both pH 7.4 and 5.0, corresponding to the physiological, tumoral, and intracellular environments. Drug was completely released from CNAs in 48 hrs, which would potentially maximize drug delivery and release efficiency within tumor tissues. Drug release patterns were not negatively affected by changing the cross-linking yields of CNAs. CNAs entrapping 17-AAG suppressed the growth of human non-small cell lung cancer A549 cells as equally effective as free drugs. The results demonstrated that CNAs would be a promising formulation that can be used in aqueous solutions for controlled delivery and release of 17-AAG.
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Affiliation(s)
- Andrei Ponta
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone, Lexington, KY 40536-0596, USA
| | - Shanjida Akter
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone, Lexington, KY 40536-0596, USA
| | - Younsoo Bae
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone, Lexington, KY 40536-0596, USA.
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Lee HJ, Bae Y. Cross-Linked Nanoassemblies from Poly(ethylene glycol)-poly(aspartate) Block Copolymers as Stable Supramolecular Templates for Particulate Drug Delivery. Biomacromolecules 2011; 12:2686-96. [DOI: 10.1021/bm200483t] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hyun Jin Lee
- College of Pharmacy, Pharmaceutical Sciences, University of Kentucky, 789 South Limestone, Lexington, Kentucky 40536-0596, United States
| | - Younsoo Bae
- College of Pharmacy, Pharmaceutical Sciences, University of Kentucky, 789 South Limestone, Lexington, Kentucky 40536-0596, United States
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Polymer Micelles with Hydrazone-Ester Dual Linkers for Tunable Release of Dexamethasone. Pharm Res 2011; 28:2435-46. [DOI: 10.1007/s11095-011-0470-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 05/03/2011] [Indexed: 10/18/2022]
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Tumor targeted quantum dot-mucin 1 aptamer-doxorubicin conjugate for imaging and treatment of cancer. J Control Release 2011; 153:16-22. [PMID: 21342659 DOI: 10.1016/j.jconrel.2011.02.015] [Citation(s) in RCA: 236] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 02/11/2011] [Accepted: 02/11/2011] [Indexed: 01/01/2023]
Abstract
In this study, we report the design and delivery of a tumor-targeted, pH-responsive quantum dot-mucin1 aptamer-doxorubicin (QD-MUC1-DOX) conjugate for the chemotherapy of ovarian cancer. To achieve active cancer targeting, QD was conjugated with a DNA aptamer specific for mutated MUC1 mucin overexpressed in many cancer cells including ovarian carcinoma. DOX was attached to QD via a pH-sensitive hydrazone bond in order to provide the stability of the complex in systemic circulation and drug release in acidic environment inside cancer cells. The data show that this bond is stable at neutral and slightly basic pH and undergoes rapid hydrolysis in mildly acidic pH. Confocal microscopy and in vivo imaging studies show that the developed QD-MUC1-DOX conjugate had higher cytotoxicity than free DOX in multidrug resistant cancer cells and preferentially accumulated in ovarian tumor. Data obtained demonstrate a high potential of the proposed conjugate in treatment of multidrug resistant ovarian cancer.
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