1
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Yan J, Lu Z, Xu M, Liu J, Zhang Y, Yin J, Pei R, Cao Y. Naturally biocompatible melanin based iron-complex nanoparticles for pH-responsive magnetic resonance imaging. Biomed Mater 2024; 19:045013. [PMID: 38729172 DOI: 10.1088/1748-605x/ad49f5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 05/10/2024] [Indexed: 05/12/2024]
Abstract
The sensitivity and diagnostic accuracy of magnetic resonance imaging mainly depend on the relaxation capacity of contrast agents (CAs) and their accumulated amount at the pathological region. Due to the better biocompatibility and high-spin capacity, Fe-complexes have been studied widely as an alternative to replace popular Gd-based CAs associated with potential biotoxicity. Compared with a variety of Fe complex-based CAs, such as small molecular, macrocyclic, multinuclear complexes, the form of nanoparticle exhibits outstanding longitudinal relaxation, but the clinical transformation was still limited by the inconspicuous difference of contrast between tumor and normal tissue. The enhanced effect of contrast is a positive relation as relaxation of CAs and their concentration in desired region. To specifically improve the amount of CAs accumulated in the tumor, pH-responsive polymer poly(2-ethyl-2-oxazoline) (PEOz) was modified on melanin, a ubiquitous natural pigment providing much active sites for chelating with Fe(III). The Fe(III)-Mel-PEOz we prepared could raise the tumor cell endocytosis efficiency via switching surface charge from anion to cation with the stimuli of the decreasing pH of tumor microenvironment. The change of pH has negligible effect on ther1of Fe(III)-Mel-PEOz, which is always maintained at around 1.0 mM-1s-1at 0.5 T. Moreover, Fe(III)-Mel-PEOz exhibited low cytotoxicity, and satisfactory enhancement of positive contrast effectin vivo. The excellent biocompatibility and stable relaxation demonstrate the high potential of Fe(III)-Mel-PEOz in the diagnosis of tumor.
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Affiliation(s)
- Jincong Yan
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, People's Republic of China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Zhongzhong Lu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, People's Republic of China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Mingsheng Xu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, People's Republic of China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Jihuan Liu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, People's Republic of China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Ye Zhang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Jingbo Yin
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Renjun Pei
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, People's Republic of China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Yi Cao
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
- Jiangxi Institute of Nanotechnology, Nanchang 330200, People's Republic of China
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2
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Zhu K, Gispert Contamina I, Ces O, Barter LMC, Hindley JW, Elani Y. Magnetic Modulation of Biochemical Synthesis in Synthetic Cells. J Am Chem Soc 2024; 146:13176-13182. [PMID: 38691505 PMCID: PMC11099998 DOI: 10.1021/jacs.4c00845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/19/2024] [Accepted: 04/09/2024] [Indexed: 05/03/2024]
Abstract
Synthetic cells can be constructed from diverse molecular components, without the design constraints associated with modifying 'living' biological systems. This can be exploited to generate cells with abiotic components, creating functionalities absent in biology. One example is magnetic responsiveness, the activation and modulation of encapsulated biochemical processes using a magnetic field, which is absent from existing synthetic cell designs. This is a critical oversight, as magnetic fields are uniquely bio-orthogonal, noninvasive, and highly penetrative. Here, we address this by producing artificial magneto-responsive organelles by coupling thermoresponsive membranes with hyperthermic Fe3O4 nanoparticles and embedding them in synthetic cells. Combining these systems enables synthetic cell microreactors to be built using a nested vesicle architecture, which can respond to alternating magnetic fields through in situ enzymatic catalysis. We also demonstrate the modulation of biochemical reactions by using different magnetic field strengths and the potential to tune the system using different lipid compositions. This platform could unlock a wide range of applications for synthetic cells as programmable micromachines in biomedicine and biotechnology.
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Affiliation(s)
- Karen
K. Zhu
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - Ignacio Gispert Contamina
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
| | - Oscar Ces
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - Laura M. C. Barter
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - James W. Hindley
- Department
of Chemistry, Imperial College London, Molecular
Sciences Research Hub, White City, London W12
0BZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
- Institute
of Chemical Biology, Imperial College London,
Molecular Sciences Research Hub, White City, London W12
0BZ, U.K.
| | - Yuval Elani
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
- fabriCELL, Imperial
College London, Molecular Sciences Research
Hub, White City, London W12 0BZ, U.K.
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3
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Davis MA, Cho E, Teplensky MH. Harnessing biomaterial architecture to drive anticancer innate immunity. J Mater Chem B 2023; 11:10982-11005. [PMID: 37955201 DOI: 10.1039/d3tb01677c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Immunomodulation is a powerful therapeutic approach that harnesses the body's own immune system and reprograms it to treat diseases, such as cancer. Innate immunity is key in mobilizing the rest of the immune system to respond to disease and is thus an attractive target for immunomodulation. Biomaterials have widely been employed as vehicles to deliver immunomodulatory therapeutic cargo to immune cells and raise robust antitumor immunity. However, it is key to consider the design of biomaterial chemical and physical structure, as it has direct impacts on innate immune activation and antigen presentation to stimulate downstream adaptive immunity. Herein, we highlight the widespread importance of structure-driven biomaterial design for the delivery of immunomodulatory cargo to innate immune cells. The incorporation of precise structural elements can be harnessed to improve delivery kinetics, uptake, and the targeting of biomaterials into innate immune cells, and enhance immune activation against cancer through temporal and spatial processing of cargo to overcome the immunosuppressive tumor microenvironment. Structural design of immunomodulatory biomaterials will profoundly improve the efficacy of current cancer immunotherapies by maximizing the impact of the innate immune system and thus has far-reaching translational potential against other diseases.
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Affiliation(s)
- Meredith A Davis
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts, 02215, USA.
| | - Ezra Cho
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts, 02215, USA.
| | - Michelle H Teplensky
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts, 02215, USA.
- Department of Materials Science and Engineering, Boston University, Boston, Massachusetts, 02215, USA
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4
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Mattioli R, Ilari A, Colotti B, Mosca L, Fazi F, Colotti G. Doxorubicin and other anthracyclines in cancers: Activity, chemoresistance and its overcoming. Mol Aspects Med 2023; 93:101205. [PMID: 37515939 DOI: 10.1016/j.mam.2023.101205] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 07/31/2023]
Abstract
Anthracyclines have been important and effective treatments against a number of cancers since their discovery. However, their use in therapy has been complicated by severe side effects and toxicity that occur during or after treatment, including cardiotoxicity. The mode of action of anthracyclines is complex, with several mechanisms proposed. It is possible that their high toxicity is due to the large set of processes involved in anthracycline action. The development of resistance is a major barrier to successful treatment when using anthracyclines. This resistance is based on a series of mechanisms that have been studied and addressed in recent years. This work provides an overview of the anthracyclines used in cancer therapy. It discusses their mechanisms of activity, toxicity, and chemoresistance, as well as the approaches used to improve their activity, decrease their toxicity, and overcome resistance.
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Affiliation(s)
- Roberto Mattioli
- Dept. Biochemical Sciences A. Rossi Fanelli, Sapienza University of Rome, Rome, Italy
| | - Andrea Ilari
- Institute of Molecular Biology and Pathology, Italian National Research Council IBPM-CNR, Rome, Italy
| | - Beatrice Colotti
- Dept. Biochemical Sciences A. Rossi Fanelli, Sapienza University of Rome, Rome, Italy
| | - Luciana Mosca
- Dept. Biochemical Sciences A. Rossi Fanelli, Sapienza University of Rome, Rome, Italy
| | - Francesco Fazi
- Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Section of Histology and Medical Embryology, Sapienza University of Rome, Rome, Italy
| | - Gianni Colotti
- Institute of Molecular Biology and Pathology, Italian National Research Council IBPM-CNR, Rome, Italy.
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5
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Simon L, De Taddeo M, Coeurvolan A, Colpaert M, Richard J, Devoisselle JM, Morille M, Marcotte N, Bégu S, Lapinte V. Various lipid anchors on amphiphilic polyoxazolines to reach efficient intracellular delivery. Int J Pharm 2023:123103. [PMID: 37277088 DOI: 10.1016/j.ijpharm.2023.123103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/07/2023]
Abstract
This work aimed at evaluating the potential of amphiphilic polyoxazolines bearing lipid chain called lipopolyoxazolines to reach efficient intracellular delivery. Four lipid chains: linear saturated, linear unsaturated and two branched one of various length were associated to poly(2-methyl-2-oxazoline) block. The evaluation of their physicochemical features and their impact on cell viability and internalization capacity indicated that the linear saturated gathered the highest cell internalization with a good cell viability. Its intracellular delivery capacity was compared to the PEG reference (DSPE-PEG) after being formulated in liposomes and loaded with fluorescent probe. Both POxylated and PEGylated liposomes showed similar characteristics regarding size distribution, drug loading and cell viability. However, their intracellular delivery was dramatically different, with an improved delivery by 30 folds for the POxylated ones. This significantly better performance highlighted the difficulty of PEGylated liposomes to enter the cells by endocytosis, contrary to POxylated liposomes. This study promotes the value of lipopoly(oxazoline) as a lipopoly(ethylene glycol) alternative for effective intracellular delivery and holds great promises for development of nanoformulations for intravenous administration.
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Affiliation(s)
- L Simon
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - M De Taddeo
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - A Coeurvolan
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - M Colpaert
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - J Richard
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | | | - M Morille
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - N Marcotte
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - S Bégu
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - V Lapinte
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France.
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6
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Miao L, Ma H, Dong T, Zhao C, Gao T, Wu T, Xu H, Zhang J. Ginsenoside Rg3 liposomes regulate tumor microenvironment for the treatment of triple negative breast cancer. Drug Dev Ind Pharm 2023; 49:139-148. [PMID: 36881020 DOI: 10.1080/03639045.2023.2188078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
OBJECTIVE To improve the solubility and targeting of Ginsenoside Rg3 (G-Rg3), in the current study, we constructed a novel targeting functional material folic acid -poly(2-ethyl-2-oxazoline)-cholesteryl methyl carbonate (FA-PEOz-CHMC, FPC) modified G-Rg3 liposomes (FPC-Rg3-L). METHODS FPC was synthesized by using folic acid (FA) as a targeted head coupling with acid-activated poly(2-ethyl-2-oxazoline)-cholesteryl methyl carbonate. The inhibitory effects of the G-Rg3 preparations on mouse breast cancer cells (4T1) were investigated by CCK-8 assay. Paraffin sections of female BALB/c mice viscera were taken for hematoxylin-eosin (H&E) staining after continuous tail vein injection of G-Rg3 preparations. BALB/c mice bearing triple-negative breast cancer (TNBC) were used as animal models to investigate the inhibition of G-Rg3 preparations on tumor growth and improving quality of life. Transforming growth factor-β1 (TGF-β1) and α-smooth muscular actin (α-SMA) were used to investigate the expression of two fibrosis factors in tumor tissues by western blotting. RESULTS Compared with G-Rg3 solution (Rg3-S) and Rg3-L, FPC-Rg3-L had a significant inhibitory effect on 4T1 cells (p < .01), and the half maximal inhibitory concentration (IC50) of FPC-Rg3-L was significantly lower (p < .01). The H&E results showed that the injection of FPC-Rg3-L and Rg3-S did not cause damage to the organs of mice. Compared with the control group, tumor growth was significantly inhibited in mice treated with FPC-Rg3-L and G-Rg3 solutions (p < .01). CONCLUSIONS This study presents a new and safe treatment for TNBC, reduces the toxic and side effects of the drug, and provides a reference for the efficient use of Chinese herbal medicine components.
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Affiliation(s)
- Linan Miao
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Hao Ma
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Tingjun Dong
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Chengcheng Zhao
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Tingyu Gao
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Tianyi Wu
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Huan Xu
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Jing Zhang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, People's Republic of China
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7
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Alshaer W, Nsairat H, Lafi Z, Hourani OM, Al-Kadash A, Esawi E, Alkilany AM. Quality by Design Approach in Liposomal Formulations: Robust Product Development. Molecules 2022; 28:10. [PMID: 36615205 PMCID: PMC9822211 DOI: 10.3390/molecules28010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/10/2022] [Accepted: 12/11/2022] [Indexed: 12/24/2022] Open
Abstract
Nanomedicine is an emerging field with continuous growth and differentiation. Liposomal formulations are a major platform in nanomedicine, with more than fifteen FDA-approved liposomal products in the market. However, as is the case for other types of nanoparticle-based delivery systems, liposomal formulations and manufacturing is intrinsically complex and associated with a set of dependent and independent variables, rendering experiential optimization a tedious process in general. Quality by design (QbD) is a powerful approach that can be applied in such complex systems to facilitate product development and ensure reproducible manufacturing processes, which are an essential pre-requisite for efficient and safe therapeutics. Input variables (related to materials, processes and experiment design) and the quality attributes for the final liposomal product should follow a systematic and planned experimental design to identify critical variables and optimal formulations/processes, where these elements are subjected to risk assessment. This review discusses the current practices that employ QbD in developing liposomal-based nano-pharmaceuticals.
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Affiliation(s)
- Walhan Alshaer
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan
| | - Hamdi Nsairat
- Pharmacological and Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman 19328, Jordan
| | - Zainab Lafi
- Pharmacological and Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman 19328, Jordan
| | - Omar M. Hourani
- Department of Pharmaceutics and Pharmaceutical Technology, School of Pharmacy, The University of Jordan, Amman 11942, Jordan
| | | | - Ezaldeen Esawi
- Cell Therapy Center, The University of Jordan, Amman 11942, Jordan
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8
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Cong X, Chen J, Xu R. Recent Progress in Bio-Responsive Drug Delivery Systems for Tumor Therapy. Front Bioeng Biotechnol 2022; 10:916952. [PMID: 35845404 PMCID: PMC9277442 DOI: 10.3389/fbioe.2022.916952] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 06/09/2022] [Indexed: 12/24/2022] Open
Abstract
Spatially- and/or temporally-controlled drug release has always been the pursuit of drug delivery systems (DDSs) to achieve the ideal therapeutic effect. The abnormal pathophysiological characteristics of the tumor microenvironment, including acidosis, overexpression of special enzymes, hypoxia, and high levels of ROS, GSH, and ATP, offer the possibility for the design of stimulus-responsive DDSs for controlled drug release to realize more efficient drug delivery and anti-tumor activity. With the help of these stimulus signals, responsive DDSs can realize controlled drug release more precisely within the local tumor site and decrease the injected dose and systemic toxicity. This review first describes the major pathophysiological characteristics of the tumor microenvironment, and highlights the recent cutting-edge advances in DDSs responding to the tumor pathophysiological environment for cancer therapy. Finally, the challenges and future directions of bio-responsive DDSs are discussed.
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Affiliation(s)
- Xiufeng Cong
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jun Chen
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ran Xu
- Department of Thoracic Surgery, Shengjing Hospital of China Medical University, Shenyang, China
- *Correspondence: Ran Xu,
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9
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Membrane-active diacylglycerol-terminated thermoresponsive polymers: RAFT synthesis and biocompatibility evaluation. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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D'Angelo NA, Noronha MA, Câmara MCC, Kurnik IS, Feng C, Araujo VHS, Santos JHPM, Feitosa V, Molino JVD, Rangel-Yagui CO, Chorilli M, Ho EA, Lopes AM. Doxorubicin nanoformulations on therapy against cancer: An overview from the last 10 years. BIOMATERIALS ADVANCES 2022; 133:112623. [PMID: 35525766 DOI: 10.1016/j.msec.2021.112623] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 12/10/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Doxorubicin (DOX) is a natural antibiotic with antineoplastic activity. It has been used for over 40 years and remains one of the most used drugs in chemotherapy for a variety of cancers. However, cardiotoxicity limits its use for long periods. To overcome this limitation, encapsulation in smart drug delivery systems (DDS) brings advantages in comparison with free drug administration (i.e., conventional anticancer drug therapy). In this review, we present the most relevant nanostructures used for DOX encapsulation over the last 10 years, such as liposomes, micelles and polymeric vesicles (i.e., polymersomes), micro/nanoemulsions, different types of polymeric nanoparticles and hydrogel nanoparticles, as well as novel approaches for DOX encapsulation. The studies highlighted here show these nanoformulations achieved higher solubility, improved tumor cytotoxicity, prolonged DOX release, as well as reduced side effects, among other interesting advantages.
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Affiliation(s)
- Natália A D'Angelo
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - Mariana A Noronha
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - Mayra C C Câmara
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - Isabelle S Kurnik
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
| | - Chuying Feng
- Laboratory for Drug Delivery and Biomaterials, School of Pharmacy, University of Waterloo, 10 Victoria St S, Kitchener, Ontario N2G1C5, Canada
| | - Victor H S Araujo
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
| | - João H P M Santos
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo (USP), São Paulo, Brazil; Micromanufacturing Laboratory, Center for Bionanomanufacturing, Institute for Technological Research (IPT), São Paulo, Brazil
| | - Valker Feitosa
- Micromanufacturing Laboratory, Center for Bionanomanufacturing, Institute for Technological Research (IPT), São Paulo, Brazil
| | | | - Carlota O Rangel-Yagui
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo (USP), São Paulo, Brazil
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
| | - Emmanuel A Ho
- Laboratory for Drug Delivery and Biomaterials, School of Pharmacy, University of Waterloo, 10 Victoria St S, Kitchener, Ontario N2G1C5, Canada
| | - André M Lopes
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Brazil.
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11
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McLean K, Zhan W. Mathematical modelling of nanoparticle-mediated topical drug delivery to skin tissue. Int J Pharm 2022; 611:121322. [PMID: 34848364 DOI: 10.1016/j.ijpharm.2021.121322] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/14/2021] [Accepted: 11/24/2021] [Indexed: 12/11/2022]
Abstract
Nanoparticles have been extensively studied to improve drug delivery outcomes, however, their use in topical delivery remains controversial. Although the feasibility to cross the human skin barrier has been demonstrated in experiments, the risk of low drug concentration in deep tissue still limits the application. In this study, mathematical modelling is employed to examine the performance of nanoparticle-mediated topical delivery for sending drugs into the deep skin tissue. The pharmacokinetic effect is evaluated based on the drug exposure over time. As compared to the delivery using plain drugs, nanoparticle-mediated topical delivery has the potential to significantly improve the drug exposure in deep skin tissue. Modelling predictions denote that the importance of sufficient long-term drug-skin contact in achieving effective drug deposition in the deep skin tissue. The delivery outcomes are highly sensitive to the release rate. Accelerating the release from nanoparticles in stratum corneum is able to improve the drug exposure in stratum corneum and viable epidermis while resulting in the reductions in dermis and blood. The release rate in stratum corneum and viable epidermis should be well-designed below a threshold for generating effective drug accumulation in dermis and blood. A more localised drug accumulation can be achieved in the capillary-rich region of dermis by increasing the local release rate. The release rate in dermis needs to be optimised to increase the drug exposure in the dermis region where there are fewer blood and lymphatics capillaries. Results from this study can be used to improve the regimen of topical delivery for localised treatment.
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Affiliation(s)
- Kevin McLean
- School of Engineering, King's College, University of Aberdeen, Aberdeen AB24 3UE, United Kingdom
| | - Wenbo Zhan
- School of Engineering, King's College, University of Aberdeen, Aberdeen AB24 3UE, United Kingdom.
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12
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Charge-reversal biodegradable MSNs for tumor synergetic chemo/photothermal and visualized therapy. J Control Release 2021; 338:719-730. [PMID: 34509586 DOI: 10.1016/j.jconrel.2021.09.005] [Citation(s) in RCA: 110] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/28/2021] [Accepted: 09/07/2021] [Indexed: 01/09/2023]
Abstract
Given the difficulties of biodegradation of mesoporous silica nanoparticles (NPs), enrichment and penetration of tumor sites, and real-time monitoring of the treatment process, we developed a kind of mannose-doping doxorubicin-loading mesoporous silica nanoparticle (MSN-Man-DOX) and coated by polydopamine-Gd3+ (PDAGd) metal-phenolic networks, as well as modified by poly (2-Ethyl-2-Oxazoline) (PEOz), constructing a novel nanomedicine MSN-Man-DOX@PDA-Gd-PEOz. Its pH-responsive charge reversal, photothermal, biodegradation, drug release, and magnetic resonance imaging (MRI) properties were evaluated in vitro. Cellular uptake, tumor penetration, lysosomal escape properties, as well as cell safety and toxicity of the nanoplatform were investigated through cell experiments. Finally, the MRI, organ distribution, photothermal condition, and comprehensive anti-tumor therapy in vivo were evaluated comprehensively through animal experiments. Research results showed that MSN-Man-DOX@PDA-Gd-PEOz had outstanding tumor enrichment and penetration abilities, which can produce excellent treatment effects through the synergistic effect of chemotherapy and photothermal therapy (PTT) with the function of magnetic resonance imaging contrast agent for disease monitoring. Besides, after finishing the therapeutic effect MSN-Man-DOX@PDA-Gd-PEOz can be biodegraded, so it had a good prospect of clinical application.
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13
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Stimulus-responsive liposomes for biomedical applications. Drug Discov Today 2021; 26:1794-1824. [PMID: 34058372 DOI: 10.1016/j.drudis.2021.05.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/01/2021] [Accepted: 05/17/2021] [Indexed: 02/08/2023]
Abstract
Liposomes are amphipathic lipidic supramolecular aggregates that are able to encapsulate and carry molecules of both hydrophilic and hydrophobic nature. They have been widely used as in vivo drug delivery systems for some time because they offer features such as synthetic flexibility, biodegradability, biocompatibility, low immunogenicity, and negligible toxicity. In recent years, the chemical modification of liposomes has paved the way to the development of smart liposome-based drug delivery systems, which are characterized by even more tunable and disease-directed features. In this review, we highlight the different types of chemical modification introduced to date, with a particular focus on internal stimuli-responsive liposomes and prodrug activation.
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14
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Devrim B, Bolat ZB, Telci D, Şahin F, Gulyuz S, Ozkose UU, Yilmaz O, Bozkır A. Design and evaluation of peptide-18-targeted nanoliposomes constructed by poly(2-oxazoline)-DOPE for doxorubicin delivery. J Microencapsul 2021; 38:285-297. [PMID: 33853478 DOI: 10.1080/02652048.2021.1905094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
AIMS The aim of this study is to develop targeted nanoliposome formulations to provide efficient treatment for breast cancer. In this study, peptide 18-modified poly(2-ethyl-2-oxazoline)-dioleoylphosphatidylethanolamine (P18-PEtOx-DOPE), was synthesised to construct nanoliposomes. METHODS Doxorubicin (DOX) was encapsulated into the nanoliposomes by ethanol injection method. Particle size and polydispersity index were measured by dynamic light scattering. Zeta potential was determined by electrophoretic laser Doppler anemometry. The shape of the nanoliposomes was examined by transmission electron microscope. Specific bindings of P18-PEtOx-DOPE nanoliposomes were demonstrated on AU565 cells by confocal microscopy and flow cytometry studies. RESULTS DOX-loaded nanoliposomes with particle diameter of 150.00 ± 2.84 nm and PDI of 0.212 ± 0.013 were obtained. PEtOx-DOPE and PEtOx-DOPE nanoliposomes are non-toxic on HUVEC, HEK293 and hMSC cells for 48 h. Furthermore, P18-PEtOx-DOPE nanoliposomes demonstrated specificity towards AU565 cells with high binding affinity. CONCLUSIONS As a result, DOX-loaded P18-PEtOx-DOPE nanoliposomes can serve as favourable candidates in breast cancer targeted therapy.
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Affiliation(s)
- Burcu Devrim
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Zeynep Busra Bolat
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.,Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Istanbul Sabahattin Zaim University, Istanbul, Turkey
| | - Dilek Telci
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
| | - Fikrettin Şahin
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
| | - Sevgi Gulyuz
- Marmara Research Center, TUBITAK, Materials Institution, Gebze, Turkey.,Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Istanbul, Maslak, Turkey
| | - Umut Ugur Ozkose
- Marmara Research Center, TUBITAK, Materials Institution, Gebze, Turkey.,Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Istanbul, Maslak, Turkey.,Department of Chemistry, Faculty of Science and Letters, Piri Reis University, Istanbul, Turkey
| | - Ozgur Yilmaz
- Marmara Research Center, TUBITAK, Materials Institution, Gebze, Turkey
| | - Asuman Bozkır
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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15
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De Leo V, Milano F, Agostiano A, Catucci L. Recent Advancements in Polymer/Liposome Assembly for Drug Delivery: From Surface Modifications to Hybrid Vesicles. Polymers (Basel) 2021; 13:1027. [PMID: 33810273 PMCID: PMC8037206 DOI: 10.3390/polym13071027] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 03/18/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022] Open
Abstract
Liposomes are consolidated and attractive biomimetic nanocarriers widely used in the field of drug delivery. The structural versatility of liposomes has been exploited for the development of various carriers for the topical or systemic delivery of drugs and bioactive molecules, with the possibility of increasing their bioavailability and stability, and modulating and directing their release, while limiting the side effects at the same time. Nevertheless, first-generation vesicles suffer from some limitations including physical instability, short in vivo circulation lifetime, reduced payload, uncontrolled release properties, and low targeting abilities. Therefore, liposome preparation technology soon took advantage of the possibility of improving vesicle performance using both natural and synthetic polymers. Polymers can easily be synthesized in a controlled manner over a wide range of molecular weights and in a low dispersity range. Their properties are widely tunable and therefore allow the low chemical versatility typical of lipids to be overcome. Moreover, depending on their structure, polymers can be used to create a simple covering on the liposome surface or to intercalate in the phospholipid bilayer to give rise to real hybrid structures. This review illustrates the main strategies implemented in the field of polymer/liposome assembly for drug delivery, with a look at the most recent publications without neglecting basic concepts for a simple and complete understanding by the reader.
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Affiliation(s)
- Vincenzo De Leo
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy;
| | - Francesco Milano
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), S.P. Lecce-Monteroni, Ecotekne, 73100 Lecce, Italy;
| | - Angela Agostiano
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy;
| | - Lucia Catucci
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy;
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16
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Miao Z, Zhang L, Gu M, Huang J, Wang X, Yan J, Xu Y, Wang L. Preparation of Fraxetin Long Circulating Liposome and Its Anti-enteritis Effect. AAPS PharmSciTech 2021; 22:110. [PMID: 33733385 DOI: 10.1208/s12249-021-01940-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/20/2021] [Indexed: 11/30/2022] Open
Abstract
This study sought to improve the oral bioavailability and enhance the anti-enteritis effect of fraxetin by incorporating it into long circulating liposomes (F-LC-Lipo). The optimal formulation of F-LC-Lipo was obtained via orthogonal design. The particle size, morphology, encapsulation efficiency, stability, and anti-enteritis effect of F-LC-Lipo were evaluated. The particle size of F-LC-Lipo was 166.65 ± 8.75 nm with entrapment efficiency (EE) of 92.18 ± 0.17%. The release rate in different dissolution media (pH 1.2 HCl, DDW, and pH 7.4 PBS) was significantly higher than that of fraxetin solution. Compared with the free fraxetin solution, F-LC-Lipo increased oral bioavailability of fraxetin by 4.43 times (443%). More importantly, F-LC-Lipo could improve the levels of interleukin-1 beta (IL-1β), IL-6, malondialdehyde (MDA), superoxide dismutase (SOD), tumor necrosis factor-alpha (TNF-α), C-reactive protein (CRP), prostaglandin E2 (PEG2), and IL-10 in rats with enteritis. Overall, these results suggested that LC-Lipo may serve as a potential carrier for improving the solubility and oral bioavailability of fraxetin as well as improving its enteritis effect.
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17
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Pinho JO, da Silva IV, Amaral JD, Rodrigues CMP, Casini A, Soveral G, Gaspar MM. Therapeutic potential of a copper complex loaded in pH-sensitive long circulating liposomes for colon cancer management. Int J Pharm 2021; 599:120463. [PMID: 33711474 DOI: 10.1016/j.ijpharm.2021.120463] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 12/13/2022]
Abstract
Colorectal carcinoma is a complex malignancy and current therapies are hampered by systemic toxicity and tumor resistance to treatment. In the field of cancer therapy, copper (Cu) compounds hold great promise, with some reaching clinical trials. However, the anticancer potential of Cu complexes has not yet been fully disclosed due to speciation in biological systems, leading to inactivation and/or potential side effects. This is the case of the widely studied Cu(II) complexes featuring phenanthroline ligands, with potent antiproliferative effects in vitro, but often failing in vivo. Aiming to overcome these limitations and maximize its anticancer effects in vivo, the Cu(II) complex (Cu(1,10-phenanthroline)Cl2) (Cuphen), displaying IC50 values <6 μM against different tumor cell lines, was loaded in long circulating liposomes with pH-sensitive properties (F1, DMPC:CHEMS:DSPE-PEG; F2, DOPE:CHEMS:DMPC:DSPE-PEG). This enabled a pH-dependent Cuphen release, with F1 and F2 releasing 36/78% and 47/94% of Cuphen at pH 6/4.5, respectively. The so formed nanoformulations preserved Cuphen effects towards cancer cell lines, with F2 presenting IC50 of 2.7 μM and 4.9 μM towards colon cancer CT-26 and HCT-116 cells, respectively. Additional in vitro studies confirmed that Cuphen antiproliferative activity towards colon cancer cells does not rely on cell cycle effect. Furthermore, in these cells, Cuphen reduced glycerol permeation and impaired cell migration. At 24 h incubation, wound closure was reduced by Cuphen, with migration values of 29% vs 54% (control) and 45% (1,10-phenanthroline) in CT-26 cells, and 33% vs ~44% (control and 1,10-phenanthroline) in HCT-116 cells. These effects were probably due to inhibition of aquaglyceroporins, membrane water and glycerol channels that are often abnormally expressed in tumors. In a syngeneic murine colon cancer model, F2 significantly reduced tumor progression, compared to the control group and to mice treated with free Cuphen or with the ligand, 1,10-phenanthroline, without eliciting toxic side effects. F2 led to a tumor volume reduction of ca. 50%. This was confirmed by RTV analysis, where F2 reached a value of 1.3 vs 4.4 (Control), 5.8 (Phen) and 3.8 (free Cuphen). These results clearly demonstrated the important role of the Cu(II) for the observed biological activity that was maximized following the association to a lipid-based nanosystem. Overall, this study represents a step forward in the development of pH-sensitive nanotherapeutic strategies of metallodrugs for colon cancer management.
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Affiliation(s)
- Jacinta O Pinho
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Inês V da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Joana D Amaral
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Cecília M P Rodrigues
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Angela Casini
- Department of Chemistry, Technical University of Munich (TUM), Lichtenbergstr. 4, 85748 Garching b. München, Germany.
| | - Graça Soveral
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - M Manuela Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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18
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Mirzavi F, Barati M, Soleimani A, Vakili-Ghartavol R, Jaafari MR, Soukhtanloo M. A review on liposome-based therapeutic approaches against malignant melanoma. Int J Pharm 2021; 599:120413. [PMID: 33667562 DOI: 10.1016/j.ijpharm.2021.120413] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/10/2021] [Accepted: 02/17/2021] [Indexed: 01/14/2023]
Abstract
Melanoma is a highly aggressive form of skin cancer with a very poor prognosis and excessive resistance to current conventional treatments. Recently, the application of the liposomal delivery system in the management of skin melanoma has been widely investigated. Liposomal nanocarriers are biocompatible and less toxic to host cells, enabling the efficient and safe delivery of different therapeutic agents into the tumor site and further promoting their antitumor activities. Therefore, the liposomal delivery system effectively increases the success of current melanoma therapies and overcomes resistance. In this review, we present an overview of liposome-based targeted drug delivery methods and highlight recent advances towards the development of liposome-based carriers for therapeutic genes. We also discuss the new insights regarding the efficacy and clinical significance of combinatorial treatment of liposomal formulations with immunotherapy and conventional therapies in melanoma patients for a better understanding and successfully managing cancer.
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Affiliation(s)
- Farshad Mirzavi
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Barati
- Department of Medical Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Anvar Soleimani
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Roghayyeh Vakili-Ghartavol
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Reza Jaafari
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mohammad Soukhtanloo
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran.
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19
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Zhuo S, Zhang F, Yu J, Zhang X, Yang G, Liu X. pH-Sensitive Biomaterials for Drug Delivery. Molecules 2020; 25:E5649. [PMID: 33266162 PMCID: PMC7730929 DOI: 10.3390/molecules25235649] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 12/12/2022] Open
Abstract
The development of precise and personalized medicine requires novel formulation strategies to deliver the therapeutic payloads to the pathological tissues, producing enhanced therapeutic outcome and reduced side effects. As many diseased tissues are feathered with acidic characteristics microenvironment, pH-sensitive biomaterials for drug delivery present great promise for the purpose, which could protect the therapeutic payloads from metabolism and degradation during in vivo circulation and exhibit responsive release of the therapeutics triggered by the acidic pathological tissues, especially for cancer treatment. In the past decades, many methodologies, such as acidic cleavage linkage, have been applied for fabrication of pH-responsive materials for both in vitro and in vivo applications. In this review, we will summarize some pH-sensitive drug delivery system for medical application, mainly focusing on the pH-sensitive linkage bonds and pH-sensitive biomaterials.
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Affiliation(s)
- Shijie Zhuo
- Clinical Translational Center for Targeted Drug, Department of Pharmacology, School of Medicine, Jinan University, Guangzhou 510632, China; (S.Z.); (F.Z.); (J.Y.)
| | - Feng Zhang
- Clinical Translational Center for Targeted Drug, Department of Pharmacology, School of Medicine, Jinan University, Guangzhou 510632, China; (S.Z.); (F.Z.); (J.Y.)
| | - Junyu Yu
- Clinical Translational Center for Targeted Drug, Department of Pharmacology, School of Medicine, Jinan University, Guangzhou 510632, China; (S.Z.); (F.Z.); (J.Y.)
| | - Xican Zhang
- Clinical Translational Center for Targeted Drug, Department of Pharmacology, School of Medicine, Jinan University, Guangzhou 510632, China; (S.Z.); (F.Z.); (J.Y.)
| | - Guangbao Yang
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou 215123, China;
| | - Xiaowen Liu
- Clinical Translational Center for Targeted Drug, Department of Pharmacology, School of Medicine, Jinan University, Guangzhou 510632, China; (S.Z.); (F.Z.); (J.Y.)
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20
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Stimuli-Responsive Micelles with Detachable Poly(2-ethyl-2-oxazoline) Shell Based on Amphiphilic Polyurethane for Improved Intracellular Delivery of Doxorubicin. Polymers (Basel) 2020; 12:polym12112642. [PMID: 33182767 PMCID: PMC7696422 DOI: 10.3390/polym12112642] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/08/2020] [Accepted: 11/09/2020] [Indexed: 12/12/2022] Open
Abstract
Polyurethanes (PUs) have various biomedical applications including controlled drug delivery. However, the incompletely release of drug at tumor sites limits the efficiency of these drug loaded polyurethane micelles. Here we report a novel polymer poly(2-ethyl-2-oxazoline)-SS-polyurethane-SS-poly(2-ethyl-2-oxazoline) triblock polyurethane (PEtOz-PU(PTMCSS)-PEtOz). The hydrophilic pH-responsive poly(2-ethyl-2-oxazoline) was used as an end-block to introduce pH responsiveness, and the hydrophobic PU middle-block was easily synthesized by the reaction of poly (trimethylene carbonate) diol containing disulfide bonds (PTMC-SS-PTMC diol) and bis (2-isocyanatoethyl) disulfide (CDI). PEtOz-PU(PTMCSS)-PEtOz could self-assemble to form micelles (176 nm). The drug release profile of PEtOz-PU(PTMCSS)-PEtOz micelles loaded with Doxorubicin (DOX) was studied in the presence of acetate buffer (10 mM, pH 5.0) and 10 mM dithiothreitol (DTT). The results showed that under this environment, DOX-loaded polyurethane micelles could release DOX faster and more thoroughly, about 97% of the DOX was released from the DOX-loaded PEtOz-PU(PTMCSS)-PEtOz micelle. In addition, fluorescent microscopy and cell viability assays validated that the DOX-loaded polyurethane micelle strongly inhibits the growth of C6 cells, suggesting their potential as a new nanomedicine against cancer.
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21
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The Efficacy of Cholesterol-Based Carriers in Drug Delivery. Molecules 2020; 25:molecules25184330. [PMID: 32971733 PMCID: PMC7570546 DOI: 10.3390/molecules25184330] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023] Open
Abstract
Several researchers have reported the use of cholesterol-based carriers in drug delivery. The presence of cholesterol in cell membranes and its wide distribution in the body has led to it being used in preparing carriers for the delivery of a variety of therapeutic agents such as anticancer, antimalarials and antivirals. These cholesterol-based carriers were designed as micelles, nanoparticles, copolymers, liposomes, etc. and their routes of administration include oral, intravenous and transdermal. The biocompatibility, good bioavailability and biological activity of cholesterol-based carriers make them potent prodrugs. Several in vitro and in vivo studies revealed cholesterol-based carriers potentials in delivering bioactive agents. In this manuscript, a critical review of the efficacy of cholesterol-based carriers is reported.
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22
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Simon L, Marcotte N, Devoisselle JM, Begu S, Lapinte V. Recent advances and prospects in nano drug delivery systems using lipopolyoxazolines. Int J Pharm 2020; 585:119536. [PMID: 32531447 DOI: 10.1016/j.ijpharm.2020.119536] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/05/2020] [Accepted: 06/06/2020] [Indexed: 11/29/2022]
Abstract
Facing the growing demand in nano drug delivery systems (nDDS), hybrid excipients based on natural molecules and well-defined synthetic polymers are intensively investigated. Lipopolyoxazolines (LipoPOx) composed of a polyoxazoline block (POx) and a lipid or lipid-like derivative are detailed in this review. The nature of lipids used, the route to synthesize LipoPOx and their advantages for the formulation of drugs are reported. The place of POx family in nanomedicine is discussed compared to PEG, considered as the gold standard of hydrophilic polymers. LipoPOx nanoformulations including liposomes, mixed micelles, lipid nanocapsules are provided alongside discussion of the nDDS for intravenous or topical administration.
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Affiliation(s)
- L Simon
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - N Marcotte
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | | | - S Begu
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - V Lapinte
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
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Wen L, Huang S, Du W, Zhu C, Xu H. Effects of the molecular weight and molar ratio of poly(2-ethyl-2-oxazoline)-based lipid on the pH sensitivity, stability, and antitumor efficacy of liposomes. Drug Dev Ind Pharm 2020; 46:283-295. [PMID: 31944130 DOI: 10.1080/03639045.2020.1717514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this study, we evaluated and screened the effects of the molecular weight (MW) and molar ratio of poly(2-ethyl-2-oxazoline)-cholesteryl methyl carbonate (PEtOz-CHMC) on the pH sensitivity, stability, and antitumor efficacy of liposomes. The pH sensitivity of PEtOz-CHMC with different MWs and molar ratios was screened by drug release and cytotoxicity experiments at different pH levels. Results indicated that the liposomes coated with PEtOz1k-CHMC (7% molar ratio) and PEtOz2k-CHMC (5% molar ratio) exhibited the desirable pH responsiveness. When the MW of PEtOz was relatively low, 7% of the modified ratio obtained the strongest stability, but the turbidity of the liposomes did not obviously change when the molar ratio of PEtOz-CHMC was further increased. A375 cells were used as models to investigate the cellular uptake and intracellular localization of coumarin-6-loaded liposomes (C6-L), PEGylated liposomes (PEG-C6-L), and PEtOzylated liposomes. PEtOz1k-C6-L and PEtOz2k-C6-L presented remarkably stronger fluorescence intensity at low pH than at pH 7.4, whereas C6-L and PEG-C6-L did not achieve any obvious diversity at different pH conditions. Compared with C6-L and PEG-C6-L, PEtOz-C6-L showed efficient intracellular trafficking, including endosomal/lysosomal escape and cytoplasmic release. Pharmacokinetic experiments demonstrated that half-lives of PEG2k-C6-L, PEtOz2k-C6-L, and PEtOz1k-C6-L were 11.89-, 7.00-, and 5.29-fold times higher than those of C6-L, respectively. Among the liposomes, the DOX·HCl-loaded liposomes coated with PEtOz2k-CHMC demonstrated the strongest antitumor efficacy against B16 tumor xenograft models in vivo. These findings provide the feasibility of using PEtOz-CHMC with optimal pH sensitivity and long circulation to extend the application of liposomes to efficient anticancer drug delivery.
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Affiliation(s)
- Luqiao Wen
- Department of Pharmacy, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Shouzhen Huang
- Department of Pharmacy, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Weiang Du
- Department of Pharmacy, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Caili Zhu
- Department of Pharmacy, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
| | - Huan Xu
- Department of Pharmacy, College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, People's Republic of China
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24
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Zhan W. Effects of Focused-Ultrasound-and-Microbubble-Induced Blood-Brain Barrier Disruption on Drug Transport under Liposome-Mediated Delivery in Brain Tumour: A Pilot Numerical Simulation Study. Pharmaceutics 2020; 12:pharmaceutics12010069. [PMID: 31952336 PMCID: PMC7022263 DOI: 10.3390/pharmaceutics12010069] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/17/2019] [Accepted: 01/09/2020] [Indexed: 12/21/2022] Open
Abstract
Focused ultrasound (FUS) coupled with microbubbles (MB) has been found to be a promising approach to disrupt the blood-brain barrier (BBB). However, how this disruption affects drug transport remains unclear. In this study, drug transport in combination therapy of liposomes and FUS-MB-induced BBB disruption (BBBD) was investigated based on a multiphysics model. A realistic 3D brain tumour model extracted from MR images was applied. The results demonstrated the advantage of liposomes compared to free doxorubicin injection in further improving treatment when the BBB is opened under the same delivery conditions using burst sonication. This improvement was mainly due to the BBBD-enhanced transvascular transport of free doxorubicin and the sustainable supply of the drug by long-circulating liposomes. Treatment efficacy can be improved in different ways. Disrupting the BBB simultaneously with liposome bolus injection enables more free drug molecules to cross the vessel wall, while prolonging the BBBD duration could accelerate liposome transvascular transport for more effective drug release. However, the drug release rate needs to be well controlled to balance the trade-off among drug release, transvascular exchange and elimination. The results obtained in this study could provide suggestions for the future optimisation of this FUS-MB–liposome combination therapy against brain cancer.
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Affiliation(s)
- Wenbo Zhan
- School of Engineering, University of Aberdeen, Aberdeen AB24 3UE, UK; ; Tel.: +44-(0)1224-272511
- Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK
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Sedlacek O, Hoogenboom R. Drug Delivery Systems Based on Poly(2‐Oxazoline)s and Poly(2‐Oxazine)s. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900168] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ondrej Sedlacek
- Supramolecular Chemistry GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent University Krijgslaan 281 S4 B‐9000 Ghent Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent University Krijgslaan 281 S4 B‐9000 Ghent Belgium
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Abri Aghdam M, Bagheri R, Mosafer J, Baradaran B, Hashemzaei M, Baghbanzadeh A, de la Guardia M, Mokhtarzadeh A. Recent advances on thermosensitive and pH-sensitive liposomes employed in controlled release. J Control Release 2019; 315:1-22. [DOI: 10.1016/j.jconrel.2019.09.018] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 12/12/2022]
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Du Y, He W, Xia Q, Zhou W, Yao C, Li X. Thioether Phosphatidylcholine Liposomes: A Novel ROS-Responsive Platform for Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2019; 11:37411-37420. [PMID: 31556583 DOI: 10.1021/acsami.9b08901] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Liposomes are the most valuable nanocarriers in clinical use because of their biocompatibility, biodegradation, and effective encapsulation of hydrophilic or hydrophobic drugs. However, their applications are limited by the structure and functions of the most common phospholipids used as the main component of the liposomes. In this work, novel series of thioether phosphatidylcholines (S-PCs) and S-PC-based liposomes (S-LPs) were developed for reactive oxygen species (ROS)-responsive drug release. First of all, S-PCs with different chain lengths were synthesized by a combination of click reaction and heterogeneous esterification. Differential scanning calorimetry studies indicated that S-PCs had different phase transition temperatures depending on their chain lengths. Their critical aggregation concentrations were measured by the fluorescence probe technique indicating the self-assembly ability. After that, S-PC-based stealth liposomes (S-LPs) containing DSPE-PEG2000 and cholesterol were prepared via a classic thin-film method. Doxorubicin (DOX) as a model drug was loaded in the stealth liposomes (DOX/S-LPs) by using the ammonium sulfate gradient method with high encapsulation efficiency. DOX/S-LPs were characterized by dynamic light scattering (DLS), transmission electron microscope (TEM), and cryogenic TEM, confirming their spherical structure with the bilayer thickness of about 4 nm. The ROS sensitivity of S-PCs and S-LPs was carefully evaluated in the presence of H2O2 by means of mass spectrometry, DLS, TEM, and ultraviolet spectroscopy and release study. The results indicated the significant structural change of S-LPs after H2O2 treatment, which demonstrated that S-LPs possessed an efficient ROS-triggered disintegration because of thioether oxidation of S-PCs. Finally, in vitro and in vivo anticancer efficiency assays revealed the improved drug potency of DOX/S-LPs, which can be attributed to ROS-triggered destruction of S-LPs after the uptake by tumor cells followed by rapid release of DOX. All together, as alternatives of traditional phosphatidylcholines, S-PC-based stealth liposomes are promising ROS-responsive carriers for the controlled delivery of drugs.
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Affiliation(s)
- Yawei Du
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , P. R. China
| | - Wei He
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , P. R. China
| | - Qing Xia
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , P. R. China
| | - Wenya Zhou
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , P. R. China
| | - Chen Yao
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , P. R. China
| | - Xinsong Li
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , P. R. China
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Oliveira Pinho J, Matias M, Gaspar MM. Emergent Nanotechnological Strategies for Systemic Chemotherapy against Melanoma. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1455. [PMID: 31614947 PMCID: PMC6836019 DOI: 10.3390/nano9101455] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 10/04/2019] [Accepted: 10/10/2019] [Indexed: 12/24/2022]
Abstract
Melanoma is an aggressive form of skin cancer, being one of the deadliest cancers in the world. The current treatment options involve surgery, radiotherapy, targeted therapy, immunotherapy and the use of chemotherapeutic agents. Although the last approach is the most used, the high toxicity and the lack of efficacy in advanced stages of the disease have demanded the search for novel bioactive molecules and/or efficient drug delivery systems. The current review aims to discuss the most recent advances on the elucidation of potential targets for melanoma treatment, such as aquaporin-3 and tyrosinase. In addition, the role of nanotechnology as a valuable strategy to effectively deliver selective drugs is emphasized, either incorporating/encapsulating synthetic molecules or natural-derived compounds in lipid-based nanosystems such as liposomes. Nanoformulated compounds have been explored for their improved anticancer activity against melanoma and promising results have been obtained. Indeed, they displayed improved physicochemical properties and higher accumulation in tumoral tissues, which potentiated the efficacy of the compounds in pre-clinical experiments. Overall, these experiments opened new doors for the discovery and development of more effective drug formulations for melanoma treatment.
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Affiliation(s)
- Jacinta Oliveira Pinho
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Mariana Matias
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Maria Manuela Gaspar
- Research Institute for Medicines, iMed.ULisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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Li B, Li B, He D, Feng C, Luo Z, He M. Preparation, Characterization, and In Vitro pH-sensitivity Evaluation of Superparamagnetic Iron Oxide Nanoparticle- Misonidazole pH-sensitive Liposomes. Curr Drug Deliv 2019; 16:254-267. [PMID: 30426901 DOI: 10.2174/1567201816666181114124333] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 11/06/2018] [Accepted: 11/07/2018] [Indexed: 12/28/2022]
Abstract
Background:
The use of Misonidazole (MISO), the first and a potential hypoxic tumor cell
radiosensitizer, has been limited by peripheral neurotoxicity, thus discouraging phase III clinical trials.
Objective:
To develop a targeted drug delivery and tracing System with pH-sensitive liposomes
(SpHLs) and Superparamagnetic Iron Oxide Nanoparticles (SPIONs) to counter MISO-related adverse
effects and to enable tracing under magnetic resonance.
Methods:
SPION-MISO-SpHLs were prepared by a reverse evaporation and freeze-thawing method.
HPLC and phenanthroline spectrophotometry were established for MISO and Fe determination. The
characterization and in vitro pH-sensitivity of SPION-MISO-SpHLs were evaluated.
Results:
The maximal entrapment efficiencies of MISO and SPIONs in SPION-MISO-SpHLs were
30.2% and 23.7%, respectively. The cumulative release rates of MISO and SPIONs were respectively
2.49 and 2.47 times higher in pH 5.5 than in pH 7.4 buffer. The mean particle size of SPION-MISOSpHLs
was 950 nm. The zeta potential was -58.9 mV in pH 7.4 buffer and 36.3 mV in pH 5.5 buffer.
SEM imaging showed that SPION-MISO-SpHLs had similar spherical morphologies. SPIONs were
packed in the center of liposomes and were well dispersed in a TEM graph. Magnetization curve
showed that SPION-MISO-SpHLs retained superparamagnetic properties. SPION-MISO-SpHLs were
compared with MISO+SPION+blank liposome in hypoxia and control groups of A549 cells. MISO and
SPION concentrations in culture medium showed significant differences between the same concentration
groups (P < 0.0001) and at different times (P < 0.0001).
Conclusion:
SPION-MISO-SpHLs possess pH-dependent release ability and superparamagnetism, and
thus provides a system for targeted delivery and tracing under magnetic resonance.
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Affiliation(s)
- Bibo Li
- Department of Oncology and Hematology, Chongqing General Hospital, Chongqing, China
| | - Biqiang Li
- Department of Radiology, Chongqing General Hospital, Chongqing, China
| | - Daiying He
- Department of Oncology and Hematology, Chongqing General Hospital, Chongqing, China
| | - Changyan Feng
- Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing, China
| | - Zhibin Luo
- Department of Oncology and Hematology, Chongqing General Hospital, Chongqing, China
| | - Mei He
- Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing, China
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Silva CO, Pinho JO, Lopes JM, Almeida AJ, Gaspar MM, Reis C. Current Trends in Cancer Nanotheranostics: Metallic, Polymeric, and Lipid-Based Systems. Pharmaceutics 2019; 11:E22. [PMID: 30625999 PMCID: PMC6359642 DOI: 10.3390/pharmaceutics11010022] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 12/28/2018] [Accepted: 01/01/2019] [Indexed: 02/07/2023] Open
Abstract
Theranostics has emerged in recent years to provide an efficient and safer alternative in cancer management. This review presents an updated description of nanotheranostic formulations under development for skin cancer (including melanoma), head and neck, thyroid, breast, gynecologic, prostate, and colon cancers, brain-related cancer, and hepatocellular carcinoma. With this focus, we appraised the clinical advantages and drawbacks of metallic, polymeric, and lipid-based nanosystems, such as low invasiveness, low toxicity to the surrounding healthy tissues, high precision, deeper tissue penetration, and dosage adjustment in a real-time setting. Particularly recognizing the increased complexity and multimodality in this area, multifunctional hybrid nanoparticles, comprising different nanomaterials and functionalized with targeting moieties and/or anticancer drugs, present the best characteristics for theranostics. Several examples, focusing on their design, composition, imaging and treatment modalities, and in vitro and in vivo characterization, are detailed herein. Briefly, all studies followed a common trend in the design of these theranostics modalities, such as the use of materials and/or drugs that share both inherent imaging (e.g., contrast agents) and therapeutic properties (e.g., heating or production reactive oxygen species). This rationale allows one to apparently overcome the heterogeneity, complexity, and harsh conditions of tumor microenvironments, leading to the development of successful targeted therapies.
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Affiliation(s)
- Catarina Oliveira Silva
- iMedUlisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Jacinta Oliveira Pinho
- iMedUlisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Joana Margarida Lopes
- Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - António J Almeida
- iMedUlisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Maria Manuela Gaspar
- iMedUlisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Catarina Reis
- iMedUlisboa, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
- IBEB, Faculty of Sciences, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
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Ren T, Lin X, Zhang Q, You D, Liu X, Tao X, Gou J, Zhang Y, Yin T, He H, Tang X. Encapsulation of Azithromycin Ion Pair in Liposome for Enhancing Ocular Delivery and Therapeutic Efficacy on Dry Eye. Mol Pharm 2018; 15:4862-4871. [DOI: 10.1021/acs.molpharmaceut.8b00516] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Han S, Sun R, Su H, Lv J, Xu H, Zhang D, Fu Y. Delivery of docetaxel using pH-sensitive liposomes based on D-α-tocopheryl poly(2-ethyl-2-oxazoline) succinate: Comparison with PEGylated liposomes. Asian J Pharm Sci 2018; 14:391-404. [PMID: 32104468 PMCID: PMC7032253 DOI: 10.1016/j.ajps.2018.07.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 05/21/2018] [Accepted: 07/25/2018] [Indexed: 12/22/2022] Open
Abstract
This study aimed to investigate the ability of the novel materials D-α-tocopheryl poly(2-ethyl-2-oxazoline) succinate (TPOS) to construct pH-sensitive liposomes. TPOS was initially synthesized and characterized by TLC, FTIR, and 1H-NMR. The buffering capacity of polyethylene glycol- distearoyl phosphatidylethanolamine (PEG-DSPE) and TPOS was determined by acid-base titration, and TPOS displayed a slower downtrend and gentler slope of titration curve than PEG-DSPE within pH 7.4–5.0. Studies on the in vitro drug release demonstrated that TPOS modified docetaxel (DOC) liposomes (TPOS-DOC-L) had a slower drug-release rate at pH 7.4 similar to PEGylated-DOC liposomes (PEG-DOC-L), whereas the release rate reached approximately 86.92% ± 1.69% at pH 6.4. In vitro cellular uptake assays by microplate reader, and flow cytometry revealed that TPOS modified coumarin 6 liposomes (TPOS-C6-L) had stronger cellular uptake at pH 6.4 than that at pH 7.4 (P < 0.01). Conversely, for PEGylated C6 liposomes (PEG-C6-L) and conventional C6 liposomes (C6-L), very similar cellular uptakes were exhibited at different pH values. Confocal laser scanning microscopy images showed that PEG-C6-L and C6-L were mainly located in lysosomes. By contrast, TPOS-C6-L showed broader cytoplasmic release and distribution at 4 h. MTT assay showed that the cytotoxicity of TPOS-DOC-L was similar to that of PEG-DOC-L and conventional DOC liposomes (DOC-L) at the same DOC concentration and at pH 7.4, but was much lower than those at pH 6.4 after 48 h of incubation. The apoptosis of PEG-DOC-L and DOC-L had no remarkable improvement with decreased pH from 7.4 to 6.4. Meanwhile, TPOS-DOC-L significantly induced the apoptosis of HeLa cells with decreased pH. Therefore, TPOS can be a biomaterial for the construction of a pH-sensitive drug delivery system.
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Affiliation(s)
- Shu Han
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Ruiyang Sun
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Hong Su
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Jing Lv
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Huan Xu
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Di Zhang
- Department of Pharmacy, School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
| | - Yuanshan Fu
- Department of Anatomy, College of Basic Medical Science, Dalian Medical University, Dalian 116044, China
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Lorson T, Lübtow MM, Wegener E, Haider MS, Borova S, Nahm D, Jordan R, Sokolski-Papkov M, Kabanov AV, Luxenhofer R. Poly(2-oxazoline)s based biomaterials: A comprehensive and critical update. Biomaterials 2018; 178:204-280. [DOI: 10.1016/j.biomaterials.2018.05.022] [Citation(s) in RCA: 204] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 02/06/2023]
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35
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Mishra H, Mishra PK, Ekielski A, Jaggi M, Iqbal Z, Talegaonkar S. Melanoma treatment: from conventional to nanotechnology. J Cancer Res Clin Oncol 2018; 144:2283-2302. [DOI: 10.1007/s00432-018-2726-1] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 07/30/2018] [Indexed: 11/24/2022]
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36
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Li WJ, Lian YW, Guan QS, Li N, Liang WJ, Liu WX, Huang YB, Cheng Y, Luo H. Liver-targeted delivery of liposome-encapsulated curcumol using galactosylated-stearate. Exp Ther Med 2018; 16:925-930. [PMID: 30112045 PMCID: PMC6090458 DOI: 10.3892/etm.2018.6210] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 01/18/2018] [Indexed: 12/11/2022] Open
Abstract
Liver-targeted drug delivery improves the efficacy of anti-liver cancer agents and reduces systemic toxicity by limiting the bioavailability of these drugs to within tumors. Liver targeting reagents with galactose residues, which selectively combine to asialoglyco protein receptors, have previously been used to improve liposome-encapsulated drug accumulation within liver cells. They lead to a reduction in liver cancer cell growth and have been used to cure certain hepatic diseases. In the present study, curcumol, which is the primary active component of Chinese traditional medicine Rhizoma zedoariae, was encapsulated in galactosylated-liposomes to enhance its anti-liver cancer efficacy. Galactosylated-liposomes and normal liposomes were labeled with propidium iodide. Galactosylated-liposomes with increasing concentrations of galactosylated-stearate (Gal-s) had a notably increased level of uptake in HepG2 cells (hepatoblastoma) compared with SGC-7901 (gastric cancer) and A549 (non-small cell lung cancer) cells. When the percentage of Gal-s reached 20%, liposome uptake plateaued. In the in vitro anti-liver cancer experiment, the anti-liver cancer efficacy of galactosylated-curcumol-liposomes increased significantly more compared with normal curcumol liposomes and free curcumol as indicated by cell survival rate and lactate dehydrogenase release rate. Collectively, these results demonstrate that galactosylated-liposomes are able to enhance the in vitro liver-targeting effect and anti-liver cancer efficacy of curcumol.
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Affiliation(s)
- Wen-Jie Li
- Department of Hematology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - You-Wen Lian
- Laboratory Animal Center, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Quan-Sheng Guan
- Department of Hematology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Ning Li
- Department of Hematology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Wen-Jun Liang
- Department of Hematology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Wen-Xin Liu
- Department of Hematology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Yong-Bin Huang
- Department of Hematology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Yi Cheng
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Hui Luo
- Chemistry Teaching and Research Section, The Key Laboratory of Zhanjiang for R&D Marine Microbial Resources in The Beibu Gulf Rim, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
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Zhan W, Wang CH. Convection enhanced delivery of liposome encapsulated doxorubicin for brain tumour therapy. J Control Release 2018; 285:212-229. [PMID: 30009891 DOI: 10.1016/j.jconrel.2018.07.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 06/04/2018] [Accepted: 07/02/2018] [Indexed: 10/28/2022]
Abstract
Convection enhanced delivery is promising to overcome the blood brain barrier. However, the treatment is less efficient in clinic due to the rapid elimination of small molecular drugs in brain tumours. In this study, numerical simulation is applied to investigate the convection enhanced delivery of liposome encapsulated doxorubicin under various conditions, based on a 3-D brain tumour model that is reconstructed from magnetic resonance images. Treatment efficacy is evaluated in terms of the tumour volume where the free doxorubicin concentration is above LD90. Simulation results denote that intracerebral infusion is effective in increasing the interstitial fluid velocity and inhibiting the fluid leakage from blood around the infusion site. Comparisons with direct doxorubicin infusion demonstrate the advantages of liposomes in enhancing the doxorubicin accumulation and penetration in the brain tumour. Delivery outcomes are determined by both the intratumoural environment and properties of therapeutic agents. The treatment efficacy can be improved by either increasing the liposome solution concentration and infusion rate, administrating liposomes in the tumour with normalised microvasculature density, or using liposomes with low vascular permeability. The delivery is less sensitive to liposome diffusivity in the examined range (E-11~E-7 cm2/s) as convective transport is dominative in determining the liposome migration. Drug release rate is able to be optimised by keeping a trade-off between enhancing the drug penetration and providing sufficient free doxorubicin for effective cell killing. Results from this study can be used to improve the regimen of CED treatments.
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Affiliation(s)
- Wenbo Zhan
- Department of Mechanical Engineering, Imperial College London, South Kensington Campus, London, United Kingdom.
| | - Chi-Hwa Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore.
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38
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Kim JA, Kim JC. Temperature and electric field-triggerable liposomes incorporating poly(hydroxyethyl acrylate-co-hexadecyl acrylate-co-carboxyethyl acrylate). J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.01.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Optimization of the Preparation Conditions of Borneol-Modified Ginkgolide Liposomes by Response Surface Methodology and Study of Their Blood Brain Barrier Permeability. Molecules 2018; 23:molecules23020303. [PMID: 29385087 PMCID: PMC6017666 DOI: 10.3390/molecules23020303] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/22/2018] [Accepted: 01/24/2018] [Indexed: 01/13/2023] Open
Abstract
Ginkgolides (GG), containing ginkgolide A (GA), ginkgolide B (GB) and ginkgolide C (GC), are mainly prescribed for ischemic stroke and cerebral infarction. However, the ginkgolides can hardly pass the blood-brain barrier (BBB) into the brain. The purpose of this study was to prepare borneol-modified ginkgolides liposomes (GGB-LPs) to study whether borneol could enhance the transport of ginkgolides across the BBB. The preparation conditions of GGB-LPs were optimized by a response surface-central composite design. Also, pharmacokinetics and biodistribution studies of GGB-LPs were conducted using UPLC-MS. The optimal preparation conditions for GGB-LP were as follows: ratio of lipid to drug (w/w) was 9:1, ratio of phospholipid to cholesterol (w/w) was 7:1, and hydrate volume was 17.5 mL. Under these conditions, the GGB-LP yield was 89.73 ± 3.45%. With GGB-LPs, borneol significantly promoted the transport of ginkgolide across the BBB. The pharmacokinetic parameters of GGB-LP were significantly improved too, with Tmax of 15 min and a high drug concentration of 3.39 μg/g in brain. Additionally, the drug targeting index and relative uptake rate of GGB-LP was increased. Borneol-modified ginkgolide liposomes can thus potentially be used to improve the BBB permeability of gingkolide formulations.
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40
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Lee Y, Thompson DH. Stimuli-responsive liposomes for drug delivery. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2017; 9:10.1002/wnan.1450. [PMID: 28198148 PMCID: PMC5557698 DOI: 10.1002/wnan.1450] [Citation(s) in RCA: 240] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/23/2016] [Accepted: 11/27/2016] [Indexed: 12/25/2022]
Abstract
The ultimate goal of drug delivery is to increase the bioavailability and reduce the toxic side effects of the active pharmaceutical ingredient (API) by releasing them at a specific site of action. In the case of antitumor therapy, association of the therapeutic agent with a carrier system can minimize damage to healthy, nontarget tissues, while limit systemic release and promoting long circulation to enhance uptake at the cancerous site due to the enhanced permeation and retention effect (EPR). Stimuli-responsive systems have become a promising way to deliver and release payloads in a site-selective manner. Potential carrier systems have been derived from a wide variety of materials, including inorganic nanoparticles, lipids, and polymers that have been imbued with stimuli-sensitive properties to accomplish triggered release based on an environmental cue. The unique features in the tumor microenvironment can serve as an endogenous stimulus (pH, redox potential, or unique enzymatic activity) or the locus of an applied external stimulus (heat or light) to trigger the controlled release of API. In liposomal carrier systems triggered release is generally based on the principle of membrane destabilization from local defects within bilayer membranes to effect release of liposome-entrapped drugs. This review focuses on the literature appearing between November 2008-February 2016 that reports new developments in stimuli-sensitive liposomal drug delivery strategies using pH change, enzyme transformation, redox reactions, and photochemical mechanisms of activation. WIREs Nanomed Nanobiotechnol 2017, 9:e1450. doi: 10.1002/wnan.1450 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Y Lee
- Department of Chemistry, Purdue University, West Lafayette, IN, USA
| | - D H Thompson
- Department of Chemistry, Purdue University, West Lafayette, IN, USA
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41
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Wang Y, Li P, Chen F, Jia L, Xu Q, Gai X, Yu Y, Di Y, Zhu Z, Liang Y, Liu M, Pan W, Yang X. A novel pH-sensitive carrier for the delivery of antitumor drugs: histidine-modified auricularia auricular polysaccharide nano-micelles. Sci Rep 2017; 7:4751. [PMID: 28684737 PMCID: PMC5500601 DOI: 10.1038/s41598-017-04428-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 05/09/2017] [Indexed: 02/07/2023] Open
Abstract
The study was aimed to design a novel pH-sensitive carrier to deliver antitumor drugs to increase treatment efficiency. Histidine (His)was used to modify auricularia auricular polysaccharide (AAP) by esterification. Proton nuclear magnetic resonance spectrometry was developed to characterize the His-AAP carrier and the His-AAP Paclitaxel (PTX) micelles were prepared by self-assembled organic solvent evaporation. The formation of His-AAP PTX micelles was confirmed by dynamic light-scattering, transmission electron microscopy and high performance liquid chromatography. It was found that the His-AAP PTX micelles possessed a spherical morphology with an average diameter of 157.2 nm and an 80.3% PTX encapsulation efficiency. In vitro release at pH 7.4, 6.5, 5.0 reached 70%, 71%, and 88%, respectively. The cell viability assay and confocal laser scanning microscope were used to evaluate the cytotoxicity and cell uptake of the His-AAP PTX micelles. Compared with Taxol, the IC50 of the His-AAP PTX micelles were lower after incubating for 24 h, 48 h, or 72 h (0.216 versus 0.199, 0.065 versus 0.060, and 0.023 versus 0.005, respectively). In a test of tumor-bearing mice, the His-AAP PTX micelles significantly inhibited tumor growth. These results showed that His-AAP PTX micelles are a highly promising therapeutic system for anticancer therapy.
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Affiliation(s)
- Yingying Wang
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Pingfei Li
- Department of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Fen Chen
- Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, 110032, China
| | - Lianqun Jia
- Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, 110032, China
| | - Qihao Xu
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xiumei Gai
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yibin Yu
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yan Di
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Zhihong Zhu
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yanyao Liang
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Mengqi Liu
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Weisan Pan
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xinggang Yang
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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Pautu V, Leonetti D, Lepeltier E, Clere N, Passirani C. Nanomedicine as a potent strategy in melanoma tumor microenvironment. Pharmacol Res 2017; 126:31-53. [PMID: 28223185 DOI: 10.1016/j.phrs.2017.02.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/14/2017] [Accepted: 02/14/2017] [Indexed: 12/19/2022]
Abstract
Melanoma originated from melanocytes is the most aggressive type of skin cancer. Despite considerable progresses in clinical treatment with the discovery of BRAF or MEK inhibitors and monoclonal antibodies, the durability of response to treatment is often limited to the development of acquired resistance and systemic toxicity. The limited success of conventional treatment highlights the importance of understanding the role of melanoma tumor microenvironment in tumor developement and drug resistance. Nanoparticles represent a promising strategy for the development of new cancer treatments able to improve the bioavailability of drugs and increase their penetration by targeting specifically tumors cells and/or tumor environment. In this review, we will discuss the main influence of tumor microenvironment in melanoma growth and treatment outcome. Furthermore, third generation loaded nanotechnologies represent an exciting tool for detection, treatment, and escape from possible mechanism of resistance mediated by tumor microenvironment, and will be highlighted in this review.
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Affiliation(s)
- Vincent Pautu
- MINT, UNIV Angers, INSERM, CNRS, Université Bretagne Loire, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | | | - Elise Lepeltier
- MINT, UNIV Angers, INSERM, CNRS, Université Bretagne Loire, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Nicolas Clere
- MINT, UNIV Angers, INSERM, CNRS, Université Bretagne Loire, IBS-CHU, 4 rue Larrey, F-49933 Angers, France
| | - Catherine Passirani
- MINT, UNIV Angers, INSERM, CNRS, Université Bretagne Loire, IBS-CHU, 4 rue Larrey, F-49933 Angers, France.
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43
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Abu Lila AS, Ishida T. Liposomal Delivery Systems: Design Optimization and Current Applications. Biol Pharm Bull 2017; 40:1-10. [PMID: 28049940 DOI: 10.1248/bpb.b16-00624] [Citation(s) in RCA: 217] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The liposome, a closed phospholipid bilayered vesicular system, has received considerable attention as a pharmaceutical carrier of great potential over the past 30 years. The ability of liposomes to encapsulate both hydrophilic and hydrophobic drugs, coupled with their biocompatibility and biodegradability, make liposomes attractive vehicles in the field of drug delivery. In addition, great technical advances such as remote drug loading, triggered release liposomes, ligand-targeted liposomes, liposomes containing combinations of drugs, and so on, have led to the widespread use of liposomes in diverse areas as delivery vehicles for anti-cancer, bio-active molecules, diagnostics, and therapeutic agents. In this review, we summarize design optimization of liposomal systems and invaluable applications of liposomes as effective delivery systems.
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Affiliation(s)
- Amr Selim Abu Lila
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Medical Biosciences, Tokushima University
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Duan Y, Wei L, Petryk J, Ruddy TD. Formulation, characterization and tissue distribution of a novel pH-sensitive long-circulating liposome-based theranostic suitable for molecular imaging and drug delivery. Int J Nanomedicine 2016; 11:5697-5708. [PMID: 27843312 PMCID: PMC5098928 DOI: 10.2147/ijn.s111274] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Purpose When designing liposome formulas for treatment and diagnostic purposes, two of the most common challenges are 1) the lack of a specific release mechanism for the encapsulated contents and 2) a short circulation time due to poor resistance to biological fluids. This study aimed to create a liposome formula with prolonged in vivo longevity and pH-sensitivity for cytoplasmic drug delivery. Materials and methods Liposomal particles were generated using hydrogenated soy (HS) phosphatidylcholine, cholesteryl hemisuccinate (CHEM), polyethylene glycol (PEG) and diethylenetriaminepentaacetic acid-modified phosphatidylethanolamine with film hydration and extrusion methods. The physicochemical properties of the different formulas were characterized. pH-sensitivity was evaluated through monitoring release of encapsulated calcein. Stability of the radiolabeled liposomes was assessed in vitro through incubation with human serum. The best formula was selected and injected into healthy rats to assess tissue uptake and pharmacokinetics. Results Liposomal particles were between 88 and 102 nm in diameter and negatively charged on the surface. Radiolabeling of all formulas with indium-111 was successful with good efficiency. 1%PEG-HS-CHEM not only responded to acidification very quickly but also underwent heavy degradation with serum. The 4%PEG-HS-CHEM, which exhibited both comparatively good pH-sensitivity (up to 20% release) and satisfactory stability (stability >70% after 24 h), was considered the best candidate for in vivo evaluation. Tissue distribution of 4%PEG-HS-CHEM was comparable to that of 4%PEG-HS-Chol, a long-circulating but pH-insensitive control, showing major accumulation in liver, spleen, intestine and kidneys. Analysis of blood clearance showed favorable half-life values: 0.6 and 14 h in fast and slow clearance phases, respectively. Conclusion 4%PEG-HS-CHEM showed promising results in pH-sensitivity, serum stability, tissue uptake and kinetics and is a novel liposome formulation for multifunctional theranostic applications.
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Affiliation(s)
- Yin Duan
- Nordion Inc.; Cardiac Positron Emission Tomography (PET) Radiochemistry Research Core Laboratory, Canadian Molecular Imaging Center of Excellence, University of Ottawa Heart Institute
| | - Lihui Wei
- Nordion Inc.; Cardiac Positron Emission Tomography (PET) Radiochemistry Research Core Laboratory, Canadian Molecular Imaging Center of Excellence, University of Ottawa Heart Institute; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, ON, Canada
| | - Julia Petryk
- Cardiac Positron Emission Tomography (PET) Radiochemistry Research Core Laboratory, Canadian Molecular Imaging Center of Excellence, University of Ottawa Heart Institute; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, ON, Canada
| | - Terrence D Ruddy
- Cardiac Positron Emission Tomography (PET) Radiochemistry Research Core Laboratory, Canadian Molecular Imaging Center of Excellence, University of Ottawa Heart Institute; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, ON, Canada
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45
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Zang X, Ding H, Zhao X, Li X, Du Z, Hu H, Qiao M, Chen D, Deng Y, Zhao X. Anti-EphA10 antibody-conjugated pH-sensitive liposomes for specific intracellular delivery of siRNA. Int J Nanomedicine 2016; 11:3951-67. [PMID: 27574425 PMCID: PMC4993279 DOI: 10.2147/ijn.s107952] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Therapeutic delivery of small interfering RNA (siRNA) is a major challenge that limits its potential clinical application. Here, a pH-sensitive cholesterol–Schiff base–polyethylene glycol (Chol–SIB–PEG)-modified cationic liposome–siRNA complex, conjugated with the recombinant humanized anti-EphA10 antibody (Eph), was developed as an efficient nonviral siRNA delivery system. Chol–SIB–PEG was successfully synthesized and confirmed with FTIR and 1H-NMR. An Eph–PEG–SIB–Chol-modified liposome–siRNA complex (EPSLR) was prepared and characterized by size, zeta potential, gel retardation, and encapsulation efficiency. Electrophoresis results showed that EPSLR was resistant to heparin replacement and protected siRNA from fetal bovine serum digestion. EPSLR exhibited only minor cytotoxicity in MCF-7/ADR cells. The results of flow cytometry and confocal laser scanning microscopy suggested that EPSLR enhanced siRNA transfection in MCF-7/ADR cells. Intracellular distribution experiment revealed that EPSLR could escape from the endo-lysosomal organelle and release siRNA into cytoplasm at 4 hours posttransfection. Western blot experiment demonstrated that EPSLR was able to significantly reduce the levels of MDR1 protein in MCF-7/ADR cells. The in vivo study of DIR-labeled complexes in mice bearing MCF-7/ADR tumor indicated that EPSLR could reach the tumor site rather than other organs more effectively. All these results demonstrate that EPSLR has much potential for effective siRNA delivery and may facilitate its therapeutic application.
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Affiliation(s)
| | - Huaiwei Ding
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Xiufeng Zhao
- Hongqi Hospital affiliated to Mudanjiang Medical University, Mudanjiang, People's Republic of China
| | - Xiaowei Li
- Department of Pharmaceutics, School of Pharmacy
| | - Zhouqi Du
- Department of Pharmaceutics, School of Pharmacy
| | - Haiyang Hu
- Department of Pharmaceutics, School of Pharmacy
| | - Mingxi Qiao
- Department of Pharmaceutics, School of Pharmacy
| | - Dawei Chen
- Department of Pharmaceutics, School of Pharmacy
| | - Yuihui Deng
- Department of Pharmaceutics, School of Pharmacy
| | - Xiuli Zhao
- Department of Pharmaceutics, School of Pharmacy
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Zuo T, Guan Y, Chang M, Zhang F, Lu S, Wei T, Shao W, Lin G. RGD(Arg-Gly-Asp) internalized docetaxel-loaded pH sensitive liposomes: Preparation, characterization and antitumor efficacy in vivo and in vitro. Colloids Surf B Biointerfaces 2016; 147:90-99. [PMID: 27497073 DOI: 10.1016/j.colsurfb.2016.07.056] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/23/2016] [Accepted: 07/28/2016] [Indexed: 01/30/2023]
Abstract
The goal of this research was to formulate dual-targeting liposomes (RGD/DTX-PSL) that can selectively release loaded contents in a low pH level environment and to actively target to the tumor using liposomes that had surface arginine-glycine-aspartic (RGD) tripeptides. We investigated whether RGD/DTX-PSL could serve as an effective tumor-targeted nanoparticle that is capable of suppressing tumor growth. The results suggest that DTX is released from liposomes faster at pH 5.0 than pH 7.4, demonstrating their pH sensitivity. RGD/DTX-PSL has a longer blood circulation than Duopafei(®) in rats. The RGD/DTX-PSL formulation displayed stronger antiproliferative effects than DTX alone and the strongest inhibition of tumor growth of the formulations tested, thus expanding therapeutic window of DTX. In conclusion, we established a novel, promising and easy-to-handle liposome formulation that has a considerable antitumor activity in vitro and in vivo. This study provides important prerequisite for the clinical application of dual-targeting liposomes in delivering therapies.
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Affiliation(s)
- Tiantian Zuo
- School of Pharmaceutical Science, Shandong University, 44 Wenhuaxi Road, Jinan, 250012,China; School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yuanyuan Guan
- School of Pharmaceutical Science, Shandong University, 44 Wenhuaxi Road, Jinan, 250012,China
| | - Minglu Chang
- School of Pharmaceutical Science, Shandong University, 44 Wenhuaxi Road, Jinan, 250012,China
| | - Fang Zhang
- School of Pharmaceutical Science, Shandong University, 44 Wenhuaxi Road, Jinan, 250012,China
| | - Shanshan Lu
- School of Pharmaceutical Science, Shandong University, 44 Wenhuaxi Road, Jinan, 250012,China
| | - Ting Wei
- School of Pharmaceutical Science, Shandong University, 44 Wenhuaxi Road, Jinan, 250012,China
| | - Wei Shao
- School of Pharmaceutical Science, Shandong University, 44 Wenhuaxi Road, Jinan, 250012,China
| | - Guimei Lin
- School of Pharmaceutical Science, Shandong University, 44 Wenhuaxi Road, Jinan, 250012,China.
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Gothwal A, Khan I, Gupta U. Polymeric Micelles: Recent Advancements in the Delivery of Anticancer Drugs. Pharm Res 2015. [PMID: 26381278 DOI: 10.1007/s11095‐015‐1784‐1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanotechnology, in health and medicine, extensively improves the safety and efficacy of different therapeutic agents, particularly the aspects related to drug delivery and targeting. Among various nano-carriers, polymer based macromolecular approaches have resulted in improved drug delivery for the diseases like cancers, diabetes, autoimmune disorders and many more. Polymeric micelles consisting of hydrophilic exterior and hydrophobic core have established a record of anticancer drug delivery from the laboratory to commercial reality. The nanometric size, tailor made functionality, multiple choices of polymeric micelle synthesis and stability are the unique properties, which have attracted scientists and researchers around the world to work upon in this opportunistic drug carrier. The capability of polymeric micelles as nano-carriers are nowhere less significant than nanoparticles, liposomes and other nanocarriers, as per as the commercial feasibility and presence is concerned. In fact polymeric micelles are among the most extensively studied delivery platforms for the effective treatment of different cancers as well as non-cancerous disorders. The present review highlights the sequential and recent developments in the design, synthesis, characterization and evaluation of polymeric micelles to achieve the effective anticancer drug delivery. The future possibilities and clinical outcome have also been discussed, briefly.
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Affiliation(s)
- Avinash Gothwal
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Iliyas Khan
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Umesh Gupta
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan, 305817, India.
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48
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Gothwal A, Khan I, Gupta U. Polymeric Micelles: Recent Advancements in the Delivery of Anticancer Drugs. Pharm Res 2015; 33:18-39. [PMID: 26381278 DOI: 10.1007/s11095-015-1784-1] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 08/24/2015] [Indexed: 12/24/2022]
Abstract
Nanotechnology, in health and medicine, extensively improves the safety and efficacy of different therapeutic agents, particularly the aspects related to drug delivery and targeting. Among various nano-carriers, polymer based macromolecular approaches have resulted in improved drug delivery for the diseases like cancers, diabetes, autoimmune disorders and many more. Polymeric micelles consisting of hydrophilic exterior and hydrophobic core have established a record of anticancer drug delivery from the laboratory to commercial reality. The nanometric size, tailor made functionality, multiple choices of polymeric micelle synthesis and stability are the unique properties, which have attracted scientists and researchers around the world to work upon in this opportunistic drug carrier. The capability of polymeric micelles as nano-carriers are nowhere less significant than nanoparticles, liposomes and other nanocarriers, as per as the commercial feasibility and presence is concerned. In fact polymeric micelles are among the most extensively studied delivery platforms for the effective treatment of different cancers as well as non-cancerous disorders. The present review highlights the sequential and recent developments in the design, synthesis, characterization and evaluation of polymeric micelles to achieve the effective anticancer drug delivery. The future possibilities and clinical outcome have also been discussed, briefly.
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Affiliation(s)
- Avinash Gothwal
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Iliyas Khan
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Umesh Gupta
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan, 305817, India.
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Linton SS, Sherwood SG, Drews KC, Kester M. Targeting cancer cells in the tumor microenvironment: opportunities and challenges in combinatorial nanomedicine. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2015; 8:208-22. [PMID: 26153136 DOI: 10.1002/wnan.1358] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/01/2015] [Accepted: 06/03/2015] [Indexed: 12/12/2022]
Abstract
Cancer therapies of the future will rely on synergy between drugs delivered in combination to achieve both maximum efficacy and decreased toxicity. Nanoscale drug delivery vehicles composed of highly tunable nanomaterials ('nanocarriers') represent the most promising approach to achieve simultaneous, cell-selective delivery of synergistic ratios of combinations of drugs within solid tumors. Nanocarriers are currently being used to co-encapsulate and deliver synergistic ratios of multiple anticancer drugs to target cells within solid tumors. Investigators exploit the unique environment associated with solid tumors, termed the tumor microenvironment (TME), to make 'smart' nanocarriers. These sophisticated nanocarriers exploit the pathological conditions in the TME, thereby creating highly targeted nanocarriers that release their drug payload in a spatially and temporally controlled manner. The translational and commercial potential of nanocarrier-based combinatorial nanomedicines in cancer therapy is now a reality as several companies have initiated human clinical trials.
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Affiliation(s)
- Samuel S Linton
- Department of Pharmacology, Penn State University College of Medicine, Hershey, PA, USA
| | - Samantha G Sherwood
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Kelly C Drews
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Mark Kester
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
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