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Wei PS, Thota N, John G, Chang E, Lee S, Wang Y, Ma Z, Tsai YH, Mei KC. Enhancing RNA-lipid nanoparticle delivery: Organ- and cell-specificity and barcoding strategies. J Control Release 2024; 375:366-388. [PMID: 39179112 DOI: 10.1016/j.jconrel.2024.08.030] [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: 04/24/2024] [Revised: 07/25/2024] [Accepted: 08/19/2024] [Indexed: 08/26/2024]
Abstract
Recent advancements in RNA therapeutics highlight the critical need for precision gene delivery systems that target specific organs and cells. Lipid nanoparticles (LNPs) have emerged as key vectors in delivering mRNA and siRNA, offering protection against enzymatic degradation, enabling targeted delivery and cellular uptake, and facilitating RNA cargo release into the cytosol. This review discusses the development and optimization of organ- and cell-specific LNPs, focusing on their design, mechanisms of action, and therapeutic applications. We explore innovations such as DNA/RNA barcoding, which facilitates high-throughput screening and precise adjustments in formulations. We address major challenges, including improving endosomal escape, minimizing off-target effects, and enhancing delivery efficiencies. Notable clinical trials and recent FDA approvals illustrate the practical applications and future potential of LNP-based RNA therapies. Our findings suggest that while considerable progress has been made, continued research is essential to resolve existing limitations and bridge the gap between preclinical and clinical evaluation of the safety and efficacy of RNA therapeutics. This review highlights the dynamic progress in LNP research. It outlines a roadmap for future advancements in RNA-based precision medicine.
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Affiliation(s)
- Pu-Sheng Wei
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Nagasri Thota
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Greshma John
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Evelyn Chang
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Sunjae Lee
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Yuanjun Wang
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Zitao Ma
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Yu-Hsuan Tsai
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Kuo-Ching Mei
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA.
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2
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Das C, Martín C, Habermann S, Walker HR, Iqbal J, Elies J, Jones HS, Reina G, Ruiz A. Co-Loading of Black Phosphorus Nanoflakes and Doxorubicin in Lysolipid Temperature-Sensitive Liposomes for Combination Therapy in Prostate Cancer. Int J Mol Sci 2023; 25:115. [PMID: 38203286 PMCID: PMC10779057 DOI: 10.3390/ijms25010115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/01/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
Black phosphorus (BP) is one of the most promising nanomaterials for cancer therapy. This 2D material is biocompatible and has strong photocatalytic activity, making it a powerful photosensitiser for combined NIR photothermal and photodynamic therapies. However, the fast degradation of BP in oxic conditions (including biological environments) still limits its use in cancer therapy. This work proposes a facile strategy to produce stable and highly concentrated BP suspensions using lysolipid temperature-sensitive liposomes (LTSLs). This approach also allows for co-encapsulating BP nanoflakes and doxorubicin, a potent chemotherapeutic drug. Finally, we demonstrate that our BP/doxorubicin formulation shows per se high antiproliferative action against an in vitro prostate cancer model and that the anticancer activity can be enhanced through NIR irradiance.
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Affiliation(s)
- Chandrima Das
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, UK; (C.D.); (H.R.W.); (J.I.); (J.E.); (H.S.J.)
| | - Cristina Martín
- Department of Bioengineering, Universidad Carlos III de Madrid, 28911 Leganés, Spain;
| | - Sebastian Habermann
- Empa Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland;
| | - Harriet Rose Walker
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, UK; (C.D.); (H.R.W.); (J.I.); (J.E.); (H.S.J.)
| | - Javed Iqbal
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, UK; (C.D.); (H.R.W.); (J.I.); (J.E.); (H.S.J.)
| | - Jacobo Elies
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, UK; (C.D.); (H.R.W.); (J.I.); (J.E.); (H.S.J.)
| | - Huw Simon Jones
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, UK; (C.D.); (H.R.W.); (J.I.); (J.E.); (H.S.J.)
| | - Giacomo Reina
- Empa Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland;
| | - Amalia Ruiz
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, UK; (C.D.); (H.R.W.); (J.I.); (J.E.); (H.S.J.)
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3
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Pande S. Liposomes for drug delivery: review of vesicular composition, factors affecting drug release and drug loading in liposomes. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2023; 51:428-440. [PMID: 37594208 DOI: 10.1080/21691401.2023.2247036] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/19/2023]
Abstract
Liposomes are considered among the most versatile and advanced nanoparticle delivery systems used to target drugs to specific cells and tissues. Structurally, liposomes are sphere-like vesicles of phospholipid molecules that are surrounded by equal number of aqueous compartments. The spherical shell encapsulates an aqueous interior which contains substances such as peptides and proteins, hormones, enzymes, antibiotics, antifungal and anticancer agents. This structural property of liposomes makes it an important nano-carrier for drug delivery. Extrusion is one of the most frequently used technique for preparing monodisperse uni-lamellar liposomes as the technique is used to control vesicle size. The process involves passage of lipid suspension through polycarbonate membrane with a fixed pore size to produce vesicles with a diameter near the pore size of the membrane used in preparing them. An advantage of this technique is that there is no need to remove the organic solvent or detergent from the final preparation. This review focuses on composition of liposome formulation with special emphasis on factors affecting drug release and drug-loading.
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Affiliation(s)
- Shantanu Pande
- Drug Product Technical Services, Wave Life Sciences, Lexington, MA, USA
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4
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Carnamucio F, Aiello D, Foti C, Napoli A, Giuffrè O. Aqueous chemistry of nalidixic acid and its complexes with biological relevant cations: A combination of potentiometric, UV spectrophotometric, MS and MS/MS study. J Inorg Biochem 2023; 249:112366. [PMID: 37734219 DOI: 10.1016/j.jinorgbio.2023.112366] [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: 06/16/2023] [Revised: 08/22/2023] [Accepted: 09/05/2023] [Indexed: 09/23/2023]
Abstract
Nalidixic acid (NAL) is a broad-spectrum antimicrobial widely used for urinary tract infections. As demonstrated, complexation of NAL with Zn2+, Mn2+ and Cu2+ was often used to get new formulations with an enhanced efficiency and potency. Therefore, the elucidation of behavior of NAL in solution and of its interaction with metal cations are crucial to better understand the influence of complexation on NAL efficiency and to find the optimal conditions to propose novel formulations. As a preliminary study, spectrophotometric titrations were carried out on NAL to determine the values of the protonation constants and to define its acid-base behavior. Then, the interaction with the three metal cations Zn2+, Mn2+ and Cu2+ was investigated by potentiometric and spectrophotometric titrations, varying the conditions of temperature, ionic strength and metal-ligand ratio, thus allowing to get the most robust speciation model and to determine the formation constants with Zn2+, Mn2+, and Cu2+ under different conditions, the sequestering ability of NAL towards metal cations, the formation enthalpic and entropic changes. A simulation under serum conditions was reported to show the relevance of the investigated species. Finally, LD-MS (laser desorption ionization mass spectrometry) and MS/MS analyses highlighted for all systems the formation of the complex species between Zn2+, Mn2+ and Cu2+ with NAL. MS/MS investigations assigned the sites of coordination of the ligand with the metal cation. More precisely, deprotonated NAL coordinates the metal cation via the oxygens of the carboxylate and the carbonyl groups.
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Affiliation(s)
- Federica Carnamucio
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Donatella Aiello
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Via P. Bucci, 87036 Arcavacata di Rende, CS, Italy
| | - Claudia Foti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Anna Napoli
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Via P. Bucci, 87036 Arcavacata di Rende, CS, Italy.
| | - Ottavia Giuffrè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
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Wang Z, Li J, Lin G, He Z, Wang Y. Metal complex-based liposomes: Applications and prospects in cancer diagnostics and therapeutics. J Control Release 2022; 348:1066-1088. [PMID: 35718211 DOI: 10.1016/j.jconrel.2022.06.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 06/09/2022] [Indexed: 12/17/2022]
Abstract
Metal complexes are of increasing interest as pharmaceutical agents in cancer diagnostics and therapeutics, while some of them suffer from issues such as limited water solubility and severe systemic toxicity. These drawbacks severely hampered their efficacy and clinical applications. Liposomes hold promise as delivery vehicles for constructing metal complex-based liposomes to maximize the therapeutic efficacy and minimize the side effects of metal complexes. This review provides an overview on the latest advances of metal complex-based liposomal delivery systems. First, the development of metal complex-mediated liposomal encapsulation is briefly introduced. Next, applications of metal complex-based liposomes in a variety of fields are overviewed, where drug delivery, cancer imaging (single photon emission computed tomography (SPECT), positron emission tomography (PET), and magnetic resonance imaging (MRI)), and cancer therapy (chemotherapy, phototherapy, and radiotherapy) were involved. Moreover, the potential toxicity, action of toxic mechanisms, immunological effects of metal complexes as well as the advantages of metal complex-liposomes in this content are also discussed. In the end, the future expectations and challenges of metal complex-based liposomes in clinical cancer therapy are tentatively proposed.
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Affiliation(s)
- Zhaomeng Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Jinbo Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Guimei Lin
- School of Pharmacy, Shandong University, Jinan 250000, PR China
| | - Zhonggui He
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.
| | - Yongjun Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.
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6
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Imidazole-Based pH-Sensitive Convertible Liposomes for Anticancer Drug Delivery. Pharmaceuticals (Basel) 2022; 15:ph15030306. [PMID: 35337105 PMCID: PMC8949415 DOI: 10.3390/ph15030306] [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: 02/08/2022] [Revised: 02/22/2022] [Accepted: 02/25/2022] [Indexed: 02/06/2023] Open
Abstract
In efforts to enhance the activity of liposomal drugs against solid tumors, three novel lipids that carry imidazole-based headgroups of incremental basicity were prepared and incorporated into the membrane of PEGylated liposomes containing doxorubicin (DOX) to render pH-sensitive convertible liposomes (ICL). The imidazole lipids were designed to protonate and cluster with negatively charged phosphatidylethanolamine-polyethylene glycol when pH drops from 7.4 to 6.0, thereby triggering ICL in acidic tumor interstitium. Upon the drop of pH, ICL gained more positive surface charges, displayed lipid phase separation in TEM and DSC, and aggregated with cell membrane-mimetic model liposomes. The drop of pH also enhanced DOX release from ICL consisting of one of the imidazole lipids, sn-2-((2,3-dihexadecyloxypropyl)thio)-5-methyl-1H-imidazole. ICL demonstrated superior activities against monolayer cells and several 3D MCS than the analogous PEGylated, pH-insensitive liposomes containing DOX, which serves as a control and clinical benchmark. The presence of cholesterol in ICL enhanced their colloidal stability but diminished their pH-sensitivity. ICL with the most basic imidazole lipid showed the highest activity in monolayer Hela cells; ICL with the imidazole lipid of medium basicity showed the highest anticancer activity in 3D MCS. ICL that balances the needs of tissue penetration, cell-binding, and drug release would yield optimal activity against solid tumors.
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Silva VL, Ruiz A, Ali A, Pereira S, Seitsonen J, Ruokolainen J, Furlong F, Coulter J, Al-Jamal WT. Hypoxia-targeted cupric-tirapazamine liposomes potentiate radiotherapy in prostate cancer spheroids. Int J Pharm 2021; 607:121018. [PMID: 34416329 DOI: 10.1016/j.ijpharm.2021.121018] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 08/13/2021] [Accepted: 08/16/2021] [Indexed: 12/16/2022]
Abstract
In this study, novel cupric-tirapazamine [Cu(TPZ)2]-liposomes were developed as an effective hypoxia-targeted therapeutic, which potentiated radiotherapy in a three dimensional (3D) prostate cancer (PCa) model. To overcome the low water solubility of the Cu(TPZ)2, a remote loading method was developed to efficiently load the lipophilic complex into different liposomal formulations. The effect of pH, temperature, PEGylation, lipid composition, liposome size, lipid: complex ratio on the liposome properties, and drug loading was evaluated. The highest loading efficiency was obtained at neutral pH, which was independent of lipid composition and incubation time. In addition, enhanced drug loading was achieved upon decreasing the lipid:complex molar ratio with minimal effects on liposomes' morphology. Interestingly, the in vitro potency of the developed liposomes was easily manipulated by changing the lipid composition. The hydrophilic nature of our liposomal formulations improved the complex's solubility, leading to enhanced cellular uptake and toxicity, both in PCa monolayers and tumour spheroids. Moreover, Cu(TPZ)2-loaded liposomes combined with radiation, showed a significant reduction in PCa spheroids growth rate, compared to the free complex or radiation alone, which could potentiate radiotherapy in patients with localised advanced PCa.
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Affiliation(s)
- Vera L Silva
- School of Pharmacy - University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
| | - Amalia Ruiz
- School of Pharmacy - Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Ahlam Ali
- School of Pharmacy - Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Sara Pereira
- School of Pharmacy - Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Jani Seitsonen
- Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, FI-00076 Aalto, Finland
| | - Janne Ruokolainen
- Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, FI-00076 Aalto, Finland
| | - Fiona Furlong
- School of Pharmacy - Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Jonathan Coulter
- School of Pharmacy - Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Wafa' T Al-Jamal
- School of Pharmacy - University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom; School of Pharmacy - Queen's University Belfast, Belfast BT9 7BL, United Kingdom.
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8
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Yee DW, Hetts SW, Greer JR. 3D-Printed Drug Capture Materials Based on Genomic DNA Coatings. ACS APPLIED MATERIALS & INTERFACES 2021; 13:41424-41434. [PMID: 34124877 PMCID: PMC11232429 DOI: 10.1021/acsami.1c05209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The toxic side effects of chemotherapy have long limited its efficacy, prompting expensive and long-drawn efforts to develop more targeted cancer therapeutics. An alternative approach to mitigate off-target toxicity is to develop a device that can sequester chemotherapeutic agents from the veins that drain the target organ before they enter systemic circulation. This effectively localizes the chemotherapy to the target organ, minimizing any hazardous side effects. 3D printing is ideal for fabricating these devices, as the geometric control afforded allows us to precisely dictate its hemodynamic performance in vivo. However, the existing materials compatible with 3D printing do not have drug-binding capabilities. Here, we report the stable coating of genomic DNA on a 3D-printed structure for the capture of doxorubicin. Genomic DNA is an effective chemotherapeutic-agent capture material due to the intrinsic DNA-targeting mechanism of action of these drugs. Stable DNA coatings were achieved through a combination of electrostatic interactions and ultraviolet C (UVC, 254 nm) cross-linking. These UVC cross-linked DNA coatings were extremely stable-leaching on average 100 pg of genomic DNA per mm2 of 3D-printed structure over a period of 30 min. In vitro studies of these materials in phosphate buffered saline and human serum demonstrated that they were able to capture, on average, 72 and 60 ng of doxorubicin per mm2 of structure, respectively. The stability and efficacy of these genomic DNA-coated 3D-printed materials represent a significant step forward towards the translation of these devices to clinical applications for the potential improvement of chemotherapy treatment.
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Affiliation(s)
- Daryl W Yee
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, United States
| | - Steven W Hetts
- Department of Radiology and Biomedical Imaging, University of California - San Francisco, San Francisco, California 94107, United States
| | - Julia R Greer
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, United States
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9
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Challenges of Current Anticancer Treatment Approaches with Focus on Liposomal Drug Delivery Systems. Pharmaceuticals (Basel) 2021; 14:ph14090835. [PMID: 34577537 PMCID: PMC8466509 DOI: 10.3390/ph14090835] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/13/2021] [Accepted: 08/20/2021] [Indexed: 12/13/2022] Open
Abstract
According to a 2020 World Health Organization report (Globocan 2020), cancer was a leading cause of death worldwide, accounting for nearly 10 million deaths in 2020. The aim of anticancer therapy is to specifically inhibit the growth of cancer cells while sparing normal dividing cells. Conventional chemotherapy, radiotherapy and surgical treatments have often been plagued by the frequency and severity of side effects as well as severe patient discomfort. Cancer targeting by drug delivery systems, owing to their selective targeting, efficacy, biocompatibility and high drug payload, provides an attractive alternative treatment; however, there are technical, therapeutic, manufacturing and clinical barriers that limit their use. This article provides a brief review of the challenges of conventional anticancer therapies and anticancer drug targeting with a special focus on liposomal drug delivery systems.
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Ijäs H, Shen B, Heuer-Jungemann A, Keller A, Kostiainen M, Liedl T, Ihalainen JA, Linko V. Unraveling the interaction between doxorubicin and DNA origami nanostructures for customizable chemotherapeutic drug release. Nucleic Acids Res 2021; 49:3048-3062. [PMID: 33660776 PMCID: PMC8034656 DOI: 10.1093/nar/gkab097] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 01/27/2021] [Accepted: 02/03/2021] [Indexed: 12/11/2022] Open
Abstract
Doxorubicin (DOX) is a common drug in cancer chemotherapy, and its high DNA-binding affinity can be harnessed in preparing DOX-loaded DNA nanostructures for targeted delivery and therapeutics. Although DOX has been widely studied, the existing literature of DOX-loaded DNA-carriers remains limited and incoherent. Here, based on an in-depth spectroscopic analysis, we characterize and optimize the DOX loading into different 2D and 3D scaffolded DNA origami nanostructures (DONs). In our experimental conditions, all DONs show similar DOX binding capacities (one DOX molecule per two to three base pairs), and the binding equilibrium is reached within seconds, remarkably faster than previously acknowledged. To characterize drug release profiles, DON degradation and DOX release from the complexes upon DNase I digestion was studied. For the employed DONs, the relative doses (DOX molecules released per unit time) may vary by two orders of magnitude depending on the DON superstructure. In addition, we identify DOX aggregation mechanisms and spectral changes linked to pH, magnesium, and DOX concentration. These features have been largely ignored in experimenting with DNA nanostructures, but are probably the major sources of the incoherence of the experimental results so far. Therefore, we believe this work can act as a guide to tailoring the release profiles and developing better drug delivery systems based on DNA-carriers.
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Affiliation(s)
- Heini Ijäs
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- Nanoscience Center, Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland
| | - Boxuan Shen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
| | - Amelie Heuer-Jungemann
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
- Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany
| | - Adrian Keller
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098 Paderborn, Germany
| | - Mauri A Kostiainen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- HYBER Centre, Department of Applied Physics, Aalto University, P.O. Box 15100, 00076 Aalto, Finland
| | - Tim Liedl
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
| | - Janne A Ihalainen
- Nanoscience Center, Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland
| | - Veikko Linko
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, 00076 Aalto, Finland
- HYBER Centre, Department of Applied Physics, Aalto University, P.O. Box 15100, 00076 Aalto, Finland
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11
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Chen KTJ, Militao GGC, Anantha M, Witzigmann D, Leung AWY, Bally MB. Development and characterization of a novel flavopiridol formulation for treatment of acute myeloid leukemia. J Control Release 2021; 333:246-257. [PMID: 33798663 DOI: 10.1016/j.jconrel.2021.03.042] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/22/2021] [Accepted: 03/27/2021] [Indexed: 12/17/2022]
Abstract
For more than 30 years, treatment of acute myeloid leukemia (AML) has remained largely unchanged and reliant on chemotherapeutic drug combinations, specifically cytarabine and daunorubicin (the 7 + 3 regimen). One broad spectrum drug, flavopiridol (also known as Alvocidib) has shown significant activity against AML through the inhibition of cyclin-dependent kinases. Flavopiridol is a semisynthetic flavonoid and our research team recently described methods to formulate another flavonoid, quercetin, through the ability of flavonoids to bind divalent metals. This method relies on use of copper-containing liposomes to enhance the apparent solubility of flavopiridol and to create formulations suitable for intravenous (i.v.) use. Similar to quercetin, flavopiridol is defined as an aqueous-insoluble compound (< 1 mg/mL in water) and this research sought to evaluate whether the copper-binding capabilities of flavopiridol could be used to prepare an injectable formulation that would exhibit enhanced exposure and improved efficacy. Flavopiridol powder was added directly to preformed copper-containing liposomes (DSPC:Chol or DSPC:DSPE-PEG2000) and the resulting formulations were characterized. Pharmacokinetic and efficacy studies were then conducted. The liposomal flavopiridol formulations were well-tolerated in mice following i.v. administration at a dose of 5 mg/kg with no apparent acute or chronic toxicities. In vivo pharmacokinetics of the optimized DSPC/DSPE-PEG2000 liposomal flavopiridol formulation demonstrated a 30-fold increase in AUC (0.804 μg-hr/mL versus 26.92 μg-hr/mL) compared to the free flavopiridol formulation. The resultant liposomal formulation also demonstrated significant therapeutic activity in MV4-11 and MOLM-13 subcutaneous AML models. Additional studies will be required to define whether formulation changes can be made to enhance flavopiridol retention in the selected composition. The results suggest that further increases in flavopiridol retention will result in improved therapeutic activity.
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Affiliation(s)
- Kent T J Chen
- Department of Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada; Department of Interdisciplinary Oncology, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada.
| | - Gardenia G C Militao
- Department of Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada; Federal University of Pernambuco, PE CEP:50.670-901, Brazil
| | - Malathi Anantha
- Department of Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada
| | - Dominik Witzigmann
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC V6T 2B5, Canada; NanoMedicines Innovation Network (NMIN), University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Ada W Y Leung
- Department of Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada; Cuprous Pharmaceuticals, Vancouver, BC V6T 1Z3, Canada
| | - Marcel B Bally
- Department of Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 2B5, Canada; Cuprous Pharmaceuticals, Vancouver, BC V6T 1Z3, Canada; NanoMedicines Innovation Network (NMIN), University of British Columbia, Vancouver, BC V6T 1Z3, Canada; Department of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 2B5, Canada
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12
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Pellico J, Gawne PJ, T M de Rosales R. Radiolabelling of nanomaterials for medical imaging and therapy. Chem Soc Rev 2021; 50:3355-3423. [PMID: 33491714 DOI: 10.1039/d0cs00384k] [Citation(s) in RCA: 112] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanomaterials offer unique physical, chemical and biological properties of interest for medical imaging and therapy. Over the last two decades, there has been an increasing effort to translate nanomaterial-based medicinal products (so-called nanomedicines) into clinical practice and, although multiple nanoparticle-based formulations are clinically available, there is still a disparity between the number of pre-clinical products and those that reach clinical approval. To facilitate the efficient clinical translation of nanomedicinal-drugs, it is important to study their whole-body biodistribution and pharmacokinetics from the early stages of their development. Integrating this knowledge with that of their therapeutic profile and/or toxicity should provide a powerful combination to efficiently inform nanomedicine trials and allow early selection of the most promising candidates. In this context, radiolabelling nanomaterials allows whole-body and non-invasive in vivo tracking by the sensitive clinical imaging techniques positron emission tomography (PET), and single photon emission computed tomography (SPECT). Furthermore, certain radionuclides with specific nuclear emissions can elicit therapeutic effects by themselves, leading to radionuclide-based therapy. To ensure robust information during the development of nanomaterials for PET/SPECT imaging and/or radionuclide therapy, selection of the most appropriate radiolabelling method and knowledge of its limitations are critical. Different radiolabelling strategies are available depending on the type of material, the radionuclide and/or the final application. In this review we describe the different radiolabelling strategies currently available, with a critical vision over their advantages and disadvantages. The final aim is to review the most relevant and up-to-date knowledge available in this field, and support the efficient clinical translation of future nanomedicinal products for in vivo imaging and/or therapy.
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Affiliation(s)
- Juan Pellico
- School of Biomedical Engineering & Imaging Sciences, King's College London, St. Thomas' Hospital, London SE1 7EH, UK.
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13
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Li B, London E. Preparation and Drug Entrapment Properties of Asymmetric Liposomes Containing Cationic and Anionic Lipids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:12521-12531. [PMID: 33070610 DOI: 10.1021/acs.langmuir.0c01968] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We have developed cyclodextrin-catalyzed lipid exchange methods to prepare large unilamellar vesicles (LUVs) with asymmetric charge distributions, i.e., with different net charges on the lipids in the inner and outer leaflets. LUVs contained a mixture of a zwitterionic lipid (phosphatidylcholine), cholesterol, and various cationic lipids (O-ethyl phosphatidylcholine or dioleoyl-3-trimethylammonium propane) or anionic lipids (phosphatidylglycerol, phosphatidylserine, or phosphatidic acid). Symmetric and asymmetric LUVs with a wide variety of lipid combinations were prepared. The asymmetric LUVs contained cationic or anionic outer leaflets and inner leaflets that had either the opposite charge or were uncharged. The behavior of symmetric LUVs prepared with zwitterionic, anionic, or cationic leaflets was compared to those of asymmetric LUVs. Lipid exchange was confirmed by quantitative thin-layer chromatography, and lipid asymmetry by a novel assay measuring binding of a cationic fluorescent probe to the LUV outer leaflet. For both symmetric and asymmetric LUVs, the level of entrapment of the cationic drug doxorubicin was controlled by the charge on the inner leaflet, with the greatest entrapment and slowest leakage in vesicles with an anionic inner leaflet. This shows that it is possible to choose inner leaflet lipids to maximize liposomal loading of charged drugs independently of the identity of outer-leaflet lipids. This implies that it should also be possible to independently vary outer-leaflet lipids to, for example, impart favorable bioavailability and biodistribution properties to lipid vesicles.
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Affiliation(s)
- Bingchen Li
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, New York 11794-5215, United States
| | - Erwin London
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, New York 11794-5215, United States
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Ruiz A, Ma G, Seitsonen J, Pereira SGT, Ruokolainen J, Al-Jamal WT. Encapsulated doxorubicin crystals influence lysolipid temperature-sensitive liposomes release and therapeutic efficacy in vitro and in vivo. J Control Release 2020; 328:665-678. [PMID: 32961247 DOI: 10.1016/j.jconrel.2020.09.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/05/2020] [Accepted: 09/15/2020] [Indexed: 12/22/2022]
Abstract
Doxorubicin (DOX)-loaded lysolipid temperature-sensitive liposomes (LTSLs) are a promising stimuli-responsive drug delivery system that rapidly releases DOX in response to mild hyperthermia (HT). This study investigates the influence of loaded DOX crystals on the thermosensitivity of LTSLs and their therapeutic efficacy in vitro and in vivo. The properties of DOX crystals were manipulated using different remote loading methods (namely (NH4)2SO4, NH4-EDTA and MnSO4) and varying the lipid:DOX weight ratio during the loading step. Our results demonstrated that (NH4)2SO4 or NH4-EDTA remote loading methods had a comparable encapsulation efficiency (EE%) into LTSLs in contrast to the low DOX EE% obtained using the metal complexation method. Cryogenic transmission electron microscopy (cryo-TEM) revealed key differences in the nature of DOX crystals formed inside LTSLs based on the loading buffer or/and the lipid:DOX ratio used, resulting in different DOX release profiles in response to mild HT. The in vitro assessment of DOX release/uptake in CT26 and PC-3 cells revealed that the use of a high lipid:DOX ratio exhibited a fast and controlled release profile in combination with mild HT, which correlated well with their cytotoxicity studies. Similarly, in vivo DOX release, tumour growth inhibition and mice survival rates were influenced by the physicochemical properties of LTSLs payload. This study demonstrates, for the first time, that the characteristics of DOX crystals loaded into LTSLs, and their conformational rearrangement during HT, are important factors that impact the TSLs performance in vivo.
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Affiliation(s)
- Amalia Ruiz
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Guanglong Ma
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Jani Seitsonen
- Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, FI-00076 Aalto, Finland
| | - Sara G T Pereira
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, United Kingdom
| | - Janne Ruokolainen
- Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, FI-00076 Aalto, Finland
| | - Wafa T Al-Jamal
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, United Kingdom.
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Peng Z, Nie K, Song Y, Liu H, Zhou Y, Yuan Y, Chen D, Peng X, Yan W, Song J, Qu J. Monitoring the Cellular Delivery of Doxorubicin-Cu Complexes in Cells by Fluorescence Lifetime Imaging Microscopy. J Phys Chem A 2020; 124:4235-4240. [PMID: 32364735 DOI: 10.1021/acs.jpca.0c00182] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In the prodrug research field, information obtained from traditional end point biochemical assays in drug effect studies could provide neither the dynamic processes nor heterogeneous responses of individual cells. In situ imaging microscopy techniques, especially fluorescence lifetime imaging microscopy (FLIM), could fulfill these requirements. In this work, we used FLIM techniques to observe the entry and release of doxorubicin (Dox)-Cu complexes in live KYSE150 cells. The Dox-Cu complex has weaker fluorescence signals but similar lifetime values as compared to the raw Dox, whose fluorescence could be released by the addition of biothiol compound (such as glutathione). The cell viability results indicated that the Dox-Cu compound has a satisfactory killing effect on KYSE150 cells. The FLIM data showed that free doxorubicin was released from Dox-Cu complexes in cytoplasm of KYSE150 cells and then accumulated in the nucleus. After 90 min administration, the fluorescence lifetime signals reached 1.21 and 1.46 ns in the cytoplasm and nucleus, respectively, reflecting the transformation and transportation of Dox-Cu complexes. In conclusion, this work provides a satisfactory example for the research of prodrug monitored by FLIM techniques, expanding the useful applications of FLIM technique in drug development.
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Affiliation(s)
- Zheng Peng
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Kaixuan Nie
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Yiwan Song
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Hao Liu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Yingxin Zhou
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Yufeng Yuan
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Danni Chen
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Xiao Peng
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Wei Yan
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Jun Song
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
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Steinborn B, Lächelt U. Metal-organic Nanopharmaceuticals. Pharm Nanotechnol 2020; 8:163-190. [PMID: 32316907 DOI: 10.2174/2211738508666200421113215] [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] [Received: 11/19/2019] [Revised: 01/31/2020] [Accepted: 04/07/2020] [Indexed: 11/22/2022]
Abstract
Coordinative interactions between multivalent metal ions and drug derivatives with Lewis base functions give rise to nanoscale coordination polymers (NCPs) as delivery systems. As the pharmacologically active agent constitutes a main building block of the nanomaterial, the resulting drug loadings are typically very high. By additionally selecting metal ions with favorable pharmacological or physicochemical properties, the obtained NCPs are predominantly composed of active components which serve individual purposes, such as pharmacotherapy, photosensitization, multimodal imaging, chemodynamic therapy or radiosensitization. By this approach, the assembly of drug molecules into NCPs modulates pharmacokinetics, combines pharmacological drug action with specific characteristics of metal components and provides a strategy to generate tailorable multifunctional nanoparticles. This article reviews different applications and recent examples of such highly functional nanopharmaceuticals with a high 'material economy'. Lay Summary: Nanoparticles, that are small enough to circulate in the bloodstream and can carry cargo molecules, such as drugs, imaging or contrast agents, are attractive materials for pharmaceutical applications. A high loading capacity is a generally aspired parameter of nanopharmaceuticals to minimize patient exposure to unnecessary nanomaterial. Pharmaceutical agents containing Lewis base functions in their molecular structure can directly be assembled into metal-organic nanopharmaceuticals by coordinative interaction with metal ions. Such coordination polymers generally feature extraordinarily high loading capacities and the flexibility to encapsulate different agents for a simultaneous delivery in combination therapy or 'theranostic' applications.
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Affiliation(s)
- Benjamin Steinborn
- Department of Pharmacy and Center for NanoScience (CeNS), LMU Munich, 81377 Munich, Germany
| | - Ulrich Lächelt
- Department of Pharmacy and Center for NanoScience (CeNS), LMU Munich, 81377 Munich, Germany
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17
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Liu T, Wan Q, Luo Y, Chen M, Zou C, Ma M, Liu X, Chen H. On-Demand Detaching Nanosystem for the Spatiotemporal Control of Cancer Theranostics. ACS APPLIED MATERIALS & INTERFACES 2019; 11:16285-16295. [PMID: 30986025 DOI: 10.1021/acsami.9b02062] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Engineering multiple theranostic modalities into a single nanoscale entity holds great potential to rejuvenate cancer treatments; however, enabling the sophisticated spatiotemporal control of each component for maximizing theranostic improvement and minimizing side effects concurrently remains a challenge. Herein, an intelligent detachable "nanorocket" is developed to sequentially manipulate and optimize multitheranostic processes for magnetic resonance-assisted ultrasound-drug combined therapy (MR-HIFU-Drug). The "nanorocket" is constructed by integrating multicomponent (MnCO3, doxorubicin, silica) on the pH-sensitive CaCO3 nanoparticles step by step via cation exchange and controlled heterogeneous nucleation, in which doxorubicin is encapsulated in both carbonates and silica component. The "nanorocket" can initiate sequential detachment in the acidic tumor microenvironment. Specifically, carbonates decompose instantly, releasing Mn2+ as the MR contrast agent and leaving hollow silica nanostructure behind as the HIFU synergistic agent. Consequently, burst release of drug is also triggered, further triggering the degradation of silica, which in turn regulates the slow release of drug from the silica matrix. Thus, efficient tumor inhibition is achieved by enhanced HIFU ablation and biphase release of doxorubicin with a stepwise clearance of Mn and Si. This work establishes a system for the systematic spatiotemporal dispatch of diverse theranostic components for the balance of efficacy and safety in cancer theranostics.
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Affiliation(s)
- Tianzhi Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai , 200050 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing , 100049 , People's Republic of China
| | - Qian Wan
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences , Shenzhen , 518055 , People's Republic of China
| | - Yu Luo
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai , 200050 , People's Republic of China
| | - Mengjie Chen
- Department of Ultrasonography , The Eighth Affiliated Hospital of Sun Yat-Sen University , Shenzhen 518033 , People's Republic of China
| | - Chao Zou
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences , Shenzhen , 518055 , People's Republic of China
| | - Ming Ma
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai , 200050 , People's Republic of China
| | - Xin Liu
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences , Shenzhen , 518055 , People's Republic of China
| | - Hangrong Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai , 200050 , People's Republic of China
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18
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Leung AWY, Amador C, Wang LC, Mody UV, Bally MB. What Drives Innovation: The Canadian Touch on Liposomal Therapeutics. Pharmaceutics 2019; 11:pharmaceutics11030124. [PMID: 30884782 PMCID: PMC6471263 DOI: 10.3390/pharmaceutics11030124] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 03/11/2019] [Accepted: 03/12/2019] [Indexed: 01/09/2023] Open
Abstract
Liposomes are considered one of the most successful drug delivery systems (DDS) given their established utility and success in the clinic. In the past 40–50 years, Canadian scientists have made ground-breaking discoveries, many of which were successfully translated to the clinic, leading to the formation of biotech companies, the creation of research tools, such as the Lipex Extruder and the NanoAssemblr™, as well as contributing significantly to the development of pharmaceutical products, such as Abelcet®, MyoCet®, Marqibo®, Vyxeos®, and Onpattro™, which are making positive impacts on patients’ health. This review highlights the Canadian contribution to the development of these and other important liposomal technologies that have touched patients. In this review, we try to address the question of what drives innovation: Is it the individual, the teams, the funding, and/or an entrepreneurial spirit that leads to success? From this perspective, it is possible to define how innovation will translate to meaningful commercial ventures and products with impact in the future. We begin with a brief history followed by descriptions of drug delivery technologies influenced by Canadian researchers. We will discuss recent advances in liposomal technologies, including the Metaplex technology from the author’s lab. The latter exemplifies how a nanotechnology platform can be designed based on multidisciplinary groups with expertise in coordination chemistry, nanomedicines, disease, and business to create new therapeutics that can effect better outcomes in patient populations. We conclude that the team is central to the effort; arguing if the team is entrepreneurial and well positioned, the funds needed will be found, but likely not solely in Canada.
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Affiliation(s)
- Ada W Y Leung
- Cuprous Pharmaceuticals Inc., Vancouver, BC V6T 1Z4, Canada.
- Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada.
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada.
| | - Carolyn Amador
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada.
| | - Lin Chuan Wang
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada.
| | - Urmi V Mody
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada.
| | - Marcel B Bally
- Cuprous Pharmaceuticals Inc., Vancouver, BC V6T 1Z4, Canada.
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada.
- Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 2B5, Canada.
- Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
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Man F, Gawne PJ, T M de Rosales R. Nuclear imaging of liposomal drug delivery systems: A critical review of radiolabelling methods and applications in nanomedicine. Adv Drug Deliv Rev 2019; 143:134-160. [PMID: 31170428 PMCID: PMC6866902 DOI: 10.1016/j.addr.2019.05.012] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/25/2019] [Accepted: 05/29/2019] [Indexed: 12/14/2022]
Abstract
The integration of nuclear imaging with nanomedicine is a powerful tool for efficient development and clinical translation of liposomal drug delivery systems. Furthermore, it may allow highly efficient imaging-guided personalised treatments. In this article, we critically review methods available for radiolabelling liposomes. We discuss the influence that the radiolabelling methods can have on their biodistribution and highlight the often-overlooked possibility of misinterpretation of results due to decomposition in vivo. We stress the need for knowing the biodistribution/pharmacokinetics of both the radiolabelled liposomal components and free radionuclides in order to confidently evaluate the images, as they often share excretion pathways with intact liposomes (e.g. phospholipids, metallic radionuclides) and even show significant tumour uptake by themselves (e.g. some radionuclides). Finally, we describe preclinical and clinical studies using radiolabelled liposomes and discuss their impact in supporting liposomal drug development and clinical translation in several diseases, including personalised nanomedicine approaches.
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Affiliation(s)
- Francis Man
- School of Biomedical Engineering & Imaging Sciences, King's College London, St Thomas' Hospital, London SE1 7EH, United Kingdom
| | - Peter J Gawne
- School of Biomedical Engineering & Imaging Sciences, King's College London, St Thomas' Hospital, London SE1 7EH, United Kingdom
| | - Rafael T M de Rosales
- School of Biomedical Engineering & Imaging Sciences, King's College London, St Thomas' Hospital, London SE1 7EH, United Kingdom; London Centre for Nanotechnology, King's College London, Strand Campus, London WC2R 2LS, United Kingdom.
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20
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Rodriguez EB, Almeda RA, Vidallon MLP, Reyes CT. Enhanced bioactivity and efficient delivery of quercetin through nanoliposomal encapsulation using rice bran phospholipids. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:1980-1989. [PMID: 30270448 DOI: 10.1002/jsfa.9396] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 09/26/2018] [Accepted: 09/26/2018] [Indexed: 05/27/2023]
Abstract
BACKGROUND Quercetin is a phenolic compound occurring in many food plants and agricultural crops. It is reported to possess various health-promoting properties. However, the poor bioavailability of quercetin, due to its low aqueous solubility and its degradation during digestion, limits its nutraceutical applications. This study aimed to encapsulate quercetin in nanoliposomes using rice-bran phospholipids for its efficient delivery and controlled release, the protection of its structural stability, and enhancement of its bioactivity. RESULTS Nanoliposomal encapsulation of quercetin by thin film-sonication method yielded spherical nanoparticles (157.33 ± 23.78 nm) with high encapsulation efficiency (84.92 ± 0.78%). Storage stability studies showed that nanoliposomal quercetin was stable at 4 °C and 27 °C for 6 and 5 months, respectively, as indicated by unchanged antioxidant activity and quercetin retention. Nanoliposomal quercetin showed a slow, limited release pattern in simulated gastric fluid (SGF), and an initial burst release followed by a slow constant releasing pattern in simulated intestinal fluid (SIF). A 1004-fold increase in 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging activity was observed in quercetin nanoliposomes (SC50 = 4.04 ± 0.01 ppm) compared to non-encapsulated quercetin (SC50 = 4053.03 ± 5.61 ppm). Similarly, the anti-angiogenic activity of quercetin, as evaluated by duck embryo chorioallantoic membrane (CAM) assay, was enhanced twofold to fivefold by nanoliposomal encapsulation. CONCLUSION This study showed that nanoliposomal encapsulation in rice-bran phospholipids enhanced the radical-scavenging and anti-angiogenic activities of quercetin. Furthermore, this study demonstrated that nanoliposomes can serve as efficient oral delivery system for quercetin. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Evelyn B Rodriguez
- Institute of Chemistry, College of Arts and Sciences, University of the Philippines Los Baños, Los Baños, Philippines
| | - Ronaniel A Almeda
- Institute of Chemistry, College of Arts and Sciences, University of the Philippines Los Baños, Los Baños, Philippines
| | - Mark Louis P Vidallon
- Institute of Chemistry, College of Arts and Sciences, University of the Philippines Los Baños, Los Baños, Philippines
| | - Charisse T Reyes
- Faculty of Education, University of the Philippines Open University, Los Baños, Philippines
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21
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Tan M, Liu W, Liu F, Zhang W, Gao H, Cheng J, Chen Y, Wang Z, Cao Y, Ran H. Silk Fibroin-Coated Nanoagents for Acidic Lysosome Targeting by a Functional Preservation Strategy in Cancer Chemotherapy. Theranostics 2019; 9:961-973. [PMID: 30867809 PMCID: PMC6401409 DOI: 10.7150/thno.30765] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 01/07/2019] [Indexed: 01/07/2023] Open
Abstract
Background: Premature drug leakage and inefficient cellular uptake are stand out as considerable hurdles for low drug delivery efficiency in tumor chemotherapy. Thus, we established a novel drug delivery and transportation strategy mediated by biocompatible silk fibroin (SF)-coated nanoparticles to overcome these therapeutic hurdles. Methods: we first synthesised a TME-responsive biocompatible nanoplatform constructed of amorphous calcium carbonate (ACC) cores and SF shells for enhanced chemotherapy by concurrently inhibiting premature drug release, achieving lysosome-targeted explosion and locally sprayed DOX, and monitoring via PAI, which was verified both in vitro and in vivo. Results: The natural SF polymer first served as a "gatekeeper" to inhibit a drug from prematurely leaking into the circulation was demonstrated both in vitro and in vivo. Upon encountering TMEs and targeting to the acidic pH environments of lysosomes, the sensitive ACC nanoparticles were gradually degraded, eventually generating a large amount of Ca2+ and CO2, resulting in lysosomal collapse, thus preventing both the efflux of DOX from cancer cells and the protonation of DOX within the lysosome, releasing multiple hydrolytic enzyme to cytoplasm, exhibiting the optimal therapeutic dose and remarkable synergetic therapeutic performance. In particular, CO2 gas generated by the pH response of ACC nanocarriers demonstrated their imaging capability for PAI, providing the potential for quantifying and guiding drug release in targets. Conclusion: In this work, we constructed TME-responsive biocompatible NPs by coating DOX-preloaded ACC-DOX clusters with SF via a bioinspired mineralization method for efficient therapeutics. This functional lysosome-targeted preservation-strategy-based therapeutic system could provid novel insights into cancer chemotherapy.
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Affiliation(s)
- Mixiao Tan
- The Second Affiliated Hospital of Chongqing Medical University & Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Weiwei Liu
- The Second Affiliated Hospital of Chongqing Medical University & Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Fengqiu Liu
- The Second Affiliated Hospital of Chongqing Medical University & Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Wei Zhang
- The Second Affiliated Hospital of Chongqing Medical University & Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Hui Gao
- The Second Affiliated Hospital of Chongqing Medical University & Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Juan Cheng
- The Second Affiliated Hospital of Chongqing Medical University & Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Yu Chen
- State Key Lab of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Zhigang Wang
- The Second Affiliated Hospital of Chongqing Medical University & Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Yang Cao
- The Second Affiliated Hospital of Chongqing Medical University & Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Haitao Ran
- The Second Affiliated Hospital of Chongqing Medical University & Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
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22
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Li T, Cipolla D, Rades T, Boyd BJ. Drug nanocrystallisation within liposomes. J Control Release 2018; 288:96-110. [DOI: 10.1016/j.jconrel.2018.09.001] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/01/2018] [Accepted: 09/01/2018] [Indexed: 12/29/2022]
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23
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Gawne P, Man F, Fonslet J, Radia R, Bordoloi J, Cleveland M, Jimenez-Royo P, Gabizon A, Blower PJ, Long N, de Rosales RTM. Manganese-52: applications in cell radiolabelling and liposomal nanomedicine PET imaging using oxine (8-hydroxyquinoline) as an ionophore. Dalton Trans 2018; 47:9283-9293. [PMID: 29796500 PMCID: PMC6049564 DOI: 10.1039/c8dt00100f] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 03/20/2018] [Indexed: 12/22/2022]
Abstract
The ionophore 8-hydroxyquinoline (oxine) has been used to radiolabel cells and liposomal medicines with 111In and, more recently, 89Zr, for medical nuclear imaging applications. Oxine has also shown promising ionophore activity for the positron-emitting radionuclide 52Mn that should allow imaging of labelled cells and nanomedicines for long periods of time (>14 days). However, to date, the radiometal complex formed and its full labelling capabilities have not been fully characterised. Here, we provide supporting evidence of the formation of [52Mn]Mn(oxinate)2 as the metastable complex responsible for its ionophore activity. The cell labelling properties of [52Mn]Mn(oxinate)2 were investigated with various cell lines. The liposomal nanomedicine, DOXIL® (Caelyx) was also labelled with [52Mn]Mn(oxinate)2 and imaged in vivo using PET imaging. [52Mn]Mn(oxinate)2 was able to label various cell lines with moderate efficiency (15-53%), however low cellular retention of 52Mn (21-25% after 24 h) was observed which was shown not to be due to cell death. PET imaging of [52Mn]Mn-DOXIL at 1 h and 24 h post-injection showed the expected pharmacokinetics and biodistribution of this stealth liposome, but at 72 h post-injection showed a profile matching that of free 52Mn, consistent with drug release. We conclude that oxine is an effective ionophore for 52Mn, but high cellular efflux of the isotope limits its use for prolonged cell tracking. [52Mn]Mn(oxinate)2 is effective for labelling and tracking DOXIL in vivo. The release of free radionuclide after liposome extravasation could provide a non-invasive method to monitor drug release in vivo.
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Affiliation(s)
- Peter Gawne
- School of Biomedical Engineering & Imaging Sciences
, King's College London
, St Thomas’ Hospital
,
London
, SE1 7EH
, UK
.
| | - Francis Man
- School of Biomedical Engineering & Imaging Sciences
, King's College London
, St Thomas’ Hospital
,
London
, SE1 7EH
, UK
.
| | - Jesper Fonslet
- The Hevesy Lab
, Technical University of Denmark
,
4000 Roskilde
, Denmark
| | - Riya Radia
- School of Biomedical Engineering & Imaging Sciences
, King's College London
, St Thomas’ Hospital
,
London
, SE1 7EH
, UK
.
| | - Jayanta Bordoloi
- School of Biomedical Engineering & Imaging Sciences
, King's College London
, St Thomas’ Hospital
,
London
, SE1 7EH
, UK
.
| | - Matthew Cleveland
- GSK Medicines Research Centre
,
Gunnels Wood Road
, Stevenage
, Hertfordshire
, SG1 2NY
, UK
| | - Pilar Jimenez-Royo
- GSK Medicines Research Centre
,
Gunnels Wood Road
, Stevenage
, Hertfordshire
, SG1 2NY
, UK
| | - Alberto Gabizon
- Oncology Institute
, Shaare Zedek Medical Center and Hebrew University-School of Medicine
,
Jerusalem 9103102
, Israel
| | - Philip J. Blower
- School of Biomedical Engineering & Imaging Sciences
, King's College London
, St Thomas’ Hospital
,
London
, SE1 7EH
, UK
.
| | - Nicholas Long
- Department of Chemistry
, Imperial College London
,
South Kensington Campus
, London SW7 2AZ
, UK
| | - Rafael T. M. de Rosales
- School of Biomedical Engineering & Imaging Sciences
, King's College London
, St Thomas’ Hospital
,
London
, SE1 7EH
, UK
.
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Resolution V fractional factorial design for screening of factors affecting weakly basic drugs liposomal systems. Eur J Pharm Sci 2018; 119:249-258. [PMID: 29689287 DOI: 10.1016/j.ejps.2018.04.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/12/2018] [Accepted: 04/19/2018] [Indexed: 01/19/2023]
Abstract
This study aims to investigate factors affecting weakly basic drugs liposomal systems. Resolution V fractional factorial design (2V5-1) is used as an example of screening designs that would better be used as a wise step before proceeding with detailed factors effects or optimization studies. Five factors probable to affect liposomal systems of weakly basic drugs were investigated using Amisulpride as a model drug. Factors studied were; A: Preparation technique B: Phosphatidyl choline (PhC) amount (mg) C: Cholesterol: PhC molar ratio, D: Hydration volume (ml) and E: Sonication type. Levels investigated were; Ammonium sulphate-pH gradient technique or Transmembrane zinc chelation-pH gradient technique, 200 or 400 mg, 0 or 0.5, 10 or 20 ml and bath or probe sonication for A, B, C, D and E respectively. Responses measured were Particle size (PS) (nm), Zeta potential (ZP) (mV) and Entrapment efficiency percent (EE%). Ion selective electrode was used as a novel method for measuring unentrapped drug concentration and calculating entrapment efficiency without the need for liposomal separation. Factors mainly affecting the studied responses were Cholesterol: PhC ratio and hydration volume for PS, preparation technique for ZP and preparation technique and hydration volume for EE%. The applied 2V5-1 design enabled the use of only 16 trial combinations for screening the influence of five factors on weakly basic drugs liposomal systems. This clarifies the value of the use of screening experiments before extensive investigation of certain factors in detailed optimization studies.
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25
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Hou S, Yang Y, Zhou S, Kuang X, Yang Y, Gao H, Wang Z, Liu H. Novel SS-31 modified liposomes for improved protective efficacy of minocycline against drug-induced hearing loss. Biomater Sci 2018; 6:1627-1635. [DOI: 10.1039/c7bm01181d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
SS-31 modified, minocycline-loaded liposomes significantly increased hair cell survival against chronic exposure to gentamicin in a zebrafish model.
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Affiliation(s)
- Shanshan Hou
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Yang Yang
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Shuang Zhou
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Xiao Kuang
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - YinXian Yang
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Hailing Gao
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Zhenjie Wang
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Hongzhuo Liu
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
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Mosafer J, Teymouri M. Comparative study of superparamagnetic iron oxide/doxorubicin co-loaded poly (lactic-co-glycolic acid) nanospheres prepared by different emulsion solvent evaporation methods. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:1146-1155. [DOI: 10.1080/21691401.2017.1362415] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Jafar Mosafer
- Research Center of Advanced Technologies in Medicine, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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27
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Jabłońska-Trypuć A, Świderski G, Krętowski R, Lewandowski W. Newly Synthesized Doxorubicin Complexes with Selected Metals-Synthesis, Structure and Anti-Breast Cancer Activity. Molecules 2017; 22:molecules22071106. [PMID: 28677642 PMCID: PMC6152354 DOI: 10.3390/molecules22071106] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/30/2017] [Accepted: 07/01/2017] [Indexed: 12/31/2022] Open
Abstract
Doxorubicin (DOX) is very effective chemotherapeutic agent, however it has several major drawbacks. Therefore the motivation for developing novel drug complexes as anticancer agents with different mechanism of action has arisen. The aim of the present study was to evaluate the influence of newly synthesized DOX complexes with selected metals (Mg, Mn, Co, Ni, Fe, Cu, Zn) on apoptosis, cell cycle, viability, proliferation and cytotoxicity in the breast cancer cell line MCF-7. Complexation of DOX with metals has likewise been the subject of our research. The current work showed that the tested bivalent metals at a given pH condition formed metal:DOX complexes in a ratio of 2:1, while iron complexes with DOX in a ratio of 3:1. The studies also showed that selected metal-DOX complexes (Mg-DOX, Mn-DOX, Ni-DOX) at 0.5 µM concentration significantly decreased cell viability and proliferation, however they increased caspase 7 activity. Results also indicated that studied metal-DOX complexes showed high cytotoxicity in MCF-7 cells. Therefore they were chosen for cell cycle check-points and apoptosis/necrosis analysis studied by flow cytometry. Obtained results suggest that doxorubicin complexed by specified metals can be considered as a potential anti-breast cancer agent, which is characterized by a higher efficacy than a parent drug.
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Affiliation(s)
- Agata Jabłońska-Trypuć
- Division of Sanitary Biology and Biotechnology, Faculty of Civil Engineering and Environmental Engineering, Białystok University of Technology, Wiejska 45E Street, Białystok 15-351, Poland.
| | - Grzegorz Świderski
- Division of Chemistry, Bialystok University of Technology, Białystok 15-351, Poland.
| | - Rafał Krętowski
- Department of Pharmaceutical Biochemistry, Medical University of Białystok, Białystok 15-222, Poland.
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Zununi Vahed S, Salehi R, Davaran S, Sharifi S. Liposome-based drug co-delivery systems in cancer cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:1327-1341. [DOI: 10.1016/j.msec.2016.11.073] [Citation(s) in RCA: 190] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 11/10/2016] [Accepted: 11/21/2016] [Indexed: 02/07/2023]
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29
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Deygen IM, Seidl C, Kölmel DK, Bednarek C, Heissler S, Kudryashova EV, Bräse S, Schepers U. Novel Prodrug of Doxorubicin Modified by Stearoylspermine Encapsulated into PEG-Chitosan-Stabilized Liposomes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10861-10869. [PMID: 27583632 DOI: 10.1021/acs.langmuir.6b01023] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Here, we report a new modification of doxorubicin based on an amphiphilic stearoylspermine anchor, enabling loading into liposomal membranes. Doxorubicin is coupled with stearoylspermine through an acid-labile hydrazone linker to ensure the release of the drug in the acidic interstitium of tumors. Using ATR-FTIR spectroscopy (Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy), the mechanism of interaction of doxorubicin with the anionic liposomal membrane was studied: incorporation of stearoyl chains leads to an increase in local microfluidity, and the amino groups of spermine interact with the phosphate groups of lipids. To stabilize liposomes against aggregation, we applied the copolymer PEG-chitosan as a coating: complex formation leads to charge neutralization, and the liposomes grow in size. According to MTT tests and confocal microscopy for cell lines A459 and Caco-2, PEG-chitosan-coated liposomes are as effective as neutral liposomes but are much more stable.
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Affiliation(s)
- Irina M Deygen
- Department of Chemical Enzymology, Lomonosov Moscow State University , Moscow 119991, Russia
| | | | - Dominik K Kölmel
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT) , Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Christin Bednarek
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT) , Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | | | - Elena V Kudryashova
- Department of Chemical Enzymology, Lomonosov Moscow State University , Moscow 119991, Russia
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT) , Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
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30
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Yoo SS, Guo L, Sun X, Shaw AR, Yuan Z, Löbenberg R, Roa WH. Fabrication and in vitro characterization of gadolinium-based nanoclusters for simultaneous drug delivery and radiation enhancement. NANOTECHNOLOGY 2016; 27:385104. [PMID: 27533280 DOI: 10.1088/0957-4484/27/38/385104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report the synthesis of a gadolinium hydroxide (Gd(OH)3) nanorod based doxorubicin (Dox) delivery system that can enhance both magnetic resonance imaging contrast and radiation sensitivity. A simple and cost effective wet-chemical method was utilized in the presence of manganese (Mn) ions and Dox to produce the Gd(OH)3:Mn·Dox nanocluster structure. The Gd(OH)3:Mn·Dox nanocluster was composed of Mn-doped Gd(OH)3 nanorods arranged in parallel with Dox as a linker molecule between the adjacent nanorods. No other studies have utilized Dox as both the linker and therapeutic molecule in a nanostructure to date. The Gd(OH)3 nanorod is reported to have no significant cellular or in vivo toxicity, which makes it an ideal base material for this biomedical application. The Gd(OH)3:Mn·Dox nanocluster exhibited paramagnetic behavior and was stable in a colloidal solution. The nanocluster also enabled high Dox loading capacity and specifically released Dox in a sustained and pH-dependent manner. The positively charged Gd(OH)3:Mn·Dox nanoclusters were readily internalized into MDA-MB-231 breast cancer cells via endocytosis, which resulted in intracellular release of Dox. The released Dox in cells was effective in conferring cytotoxicity and inhibiting proliferation of cancer cells. Furthermore, a synergistic anticancer effect could be observed with radiation treatment. Overall, the Gd(OH)3:Mn·Dox nanocluster drug delivery system described herein may have potential utility in clinics as a multifunctional theranostic nanoparticle with combined benefits in both diagnosis and therapy in the management of cancer.
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Affiliation(s)
- Shannon S Yoo
- Department of Radiation Oncology, Cross Cancer Institute, Edmonton, Alberta, Canada
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31
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Wehbe M, Chernov L, Chen K, Bally MB. PRCosomes: pretty reactive complexes formed in liposomes. J Drug Target 2016; 24:787-796. [DOI: 10.1080/1061186x.2016.1186169] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mohamed Wehbe
- Experimental Therapeutics, British Columbia Cancer Agency, Vancouver, BC, Canada
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Lina Chernov
- Experimental Therapeutics, British Columbia Cancer Agency, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Kent Chen
- Experimental Therapeutics, British Columbia Cancer Agency, Vancouver, BC, Canada
- Department of Interdisciplinary Oncology, BC Cancer Research Centre, Vancouver, BC, Canada
| | - Marcel B. Bally
- Experimental Therapeutics, British Columbia Cancer Agency, Vancouver, BC, Canada
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
- Department of Interdisciplinary Oncology, BC Cancer Research Centre, Vancouver, BC, Canada
- Center for Drug Research and Development, Vancouver, BC, Canada
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32
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Miatmoko A, Kawano K, Yoda H, Yonemochi E, Hattori Y. Tumor delivery of liposomal doxorubicin prepared with poly-L-glutamic acid as a drug-trapping agent. J Liposome Res 2016; 27:99-107. [PMID: 26982164 DOI: 10.3109/08982104.2016.1166511] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Poly-l-glutamic acid (PGA) is an anionic polymer with a large number of carboxyl groups that can interact electrostatically with cationic drugs such as doxorubicin (DOX). OBJECTIVE For stable encapsulation of DOX into liposomes, we prepared triethylamine (TEA)-PGA-liposomes using PGA as an internal trapping agent. METHODS We prepared TEA-PGA-liposomes by remote loading of DOX with a TEA gradient into preformed liposomes prepared with 1, 2, or 4 mg/mL PGA (molecular weights 4800, 9800, and 20 500), and evaluated their biodistribution and antitumor effects on Lewis lung carcinoma (LLC) tumor-bearing mice. RESULTS TEA-PGA-liposomes using the higher the molecular weight or concentration of PGA showed a slower release of DOX from the liposomes. TEA-PGA-liposomes prepared with a high concentration of PGA could enhance DOX accumulation in tumors and prolonged DOX circulation in the serum, indicating that DOX may be retained stably in the liposomal interior by interaction with PGA. Furthermore, injection of TEA-PGA-liposomes prepared with 4 mg/mL of PGA9800 or 2 mg/mL PGA20500 strongly inhibited tumor growth in LLC tumor-bearing mice. CONCLUSIONS PGA may be a potential trapping agent for liposomal DOX for tumor drug delivery.
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Affiliation(s)
| | | | | | - Etsuo Yonemochi
- b Department of Physical Chemistry , Hoshi University , Ebara , Shinagawa , Tokyo , Japan
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Michael Dcona M, Yu Q, Capobianco JA, Hartman MCT. Near infrared light mediated release of doxorubicin using upconversion nanoparticles. Chem Commun (Camb) 2016; 51:8477-9. [PMID: 25891127 DOI: 10.1039/c5cc01795e] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lanthanide doped upconversion nanoparticles grafted with a photocaged analog of doxorubicin allow near IR-release of doxorubicin.
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Affiliation(s)
- M Michael Dcona
- Department of Chemistry, Virginia Commonwealth University, 1001 West Main Street, P. O. Box 842006, Richmond, Virginia 23284, USA
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34
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Aoki I, Yoneyama M, Hirose J, Minemoto Y, Koyama T, Kokuryo D, Bakalova R, Murayama S, Saga T, Aoshima S, Ishizaka Y, Kono K. Thermoactivatable polymer-grafted liposomes for low-invasive image-guided chemotherapy. Transl Res 2015; 166:660-673.e1. [PMID: 26303887 DOI: 10.1016/j.trsl.2015.07.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 07/02/2015] [Accepted: 07/29/2015] [Indexed: 11/28/2022]
Abstract
The objective of this study was to develop a thermotriggered, polymer-based liposomal drug carrier with an activatable magnetic resonance imaging (MRI) contrast property for monitoring the release of substances and for localized tumor therapy. The multimodal thermoactivatable polymer-grafted liposomes (MTPLs) were tested to investigate whether the accumulation of MTPLs in colon-26 grafted tumors could be visualized in vivo using MRI and optical imaging, whether MTPLs induce signal enhancement, reflecting the release of their contents, after triggering by short-term heating (42.5°C for 10 minutes) 9 hours after MTPL administration (late-phase triggering), and whether MTPLs can provide a sufficient antitumor effect. The imaging and therapeutic properties of MTPLs were tested both in vitro and in vivo (BALB/c nude mice: heated group with MTPLs (n = 5), nonheated group with MTPLs (n = 5), heated group with doxorubicin-free MTPLs (n = 5), nonheated group with manganese-free MTPLs (n = 5), and kinetics observation group (n = 3); N = 23). Through in vivo MRI and fluorescent imaging, the MTPLs were shown to have significantly accumulated in the grafted colon-26 tumors 8 hours after administration. Delayed thermotriggering (9 hours after administration) caused MR signal enhancement, reflecting the release of their contents, after a short exposure to tolerable heat. In addition, significant antitumor effects were observed after treatment. The proposed polymer-based activatable MTPLs with a "delayed thermotrigger" provide a promising technology for cancer theranostics that allows minimal adverse effects and rapid interactive therapy.
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Affiliation(s)
- Ichio Aoki
- Molecular Imaging Center, National Institute of Radiological Sciences (NIRS), Chiba, Japan.
| | - Misao Yoneyama
- Molecular Imaging Center, National Institute of Radiological Sciences (NIRS), Chiba, Japan
| | - Jun Hirose
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Sakai, Japan
| | - Yuzuru Minemoto
- Department of Intractable Diseases, National Center for Global Health and Medicine, Tokyo, Japan
| | - Takayoshi Koyama
- Department of Intractable Diseases, National Center for Global Health and Medicine, Tokyo, Japan
| | - Daisuke Kokuryo
- Molecular Imaging Center, National Institute of Radiological Sciences (NIRS), Chiba, Japan
| | - Rumiana Bakalova
- Molecular Imaging Center, National Institute of Radiological Sciences (NIRS), Chiba, Japan
| | - Shuhei Murayama
- Molecular Imaging Center, National Institute of Radiological Sciences (NIRS), Chiba, Japan
| | - Tsuneo Saga
- Molecular Imaging Center, National Institute of Radiological Sciences (NIRS), Chiba, Japan
| | - Sadahito Aoshima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Yukihito Ishizaka
- Department of Intractable Diseases, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kenji Kono
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Sakai, Japan
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Zhang L, Zhang Z, Mason RP, Sarkaria JN, Zhao D. Convertible MRI contrast: Sensing the delivery and release of anti-glioma nano-drugs. Sci Rep 2015; 5:9874. [PMID: 25962872 PMCID: PMC4428068 DOI: 10.1038/srep09874] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 03/19/2015] [Indexed: 12/27/2022] Open
Abstract
There is considerable interest in developing nanohybrids of imaging contrast agents and drugs for image-guided drug delivery. We have developed a strategy of utilizing manganese (Mn) to enhance the nano-encapsulation of arsenic trioxide (ATO). Formation of arsenite (As3+)-Mn precipitates in liposomes generates magnetic susceptibility effects, reflected as dark contrast on T2-weighted MRI. Intriguingly, following cell uptake, the As-Mn complex decomposes in response to low pH in endosome-lysosome releasing ionic As3+, the active form of ATO, and Mn2+, the T1 contrast agent that gives a bright signal. Glioblastoma (GBM) is well known for its high resistance to chemotherapy, e.g., temozolomide (TMZ). Building upon the previously established phosphatidylserine (PS)-targeted nanoplatform that has excellent GBM-targeting specificity, we now demonstrate the effectiveness of the targeted nanoformulated ATO for treating TMZ-resistant GBM cells and the ability of the convertible Mn contrast as a surrogate revealing the delivery and release of ATO.
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Affiliation(s)
- Liang Zhang
- Radiology, UT Southwestern Medical Center, Dallas, TX
| | | | - Ralph P Mason
- Radiology, UT Southwestern Medical Center, Dallas, TX
| | | | - Dawen Zhao
- Radiology, UT Southwestern Medical Center, Dallas, TX
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Kakkar D, Mazzaferro S, Thevenot J, Schatz C, Bhatt A, Dwarakanath BS, Singh H, Mishra AK, Lecommandoux S. Amphiphilic PEO-b
-PBLG Diblock and PBLG-b
-PEO-b
-PBLG Triblock Copolymer Based Nanoparticles: Doxorubicin Loading and In Vitro
Evaluation. Macromol Biosci 2014; 15:124-37. [DOI: 10.1002/mabi.201400451] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 11/06/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Dipti Kakkar
- Université de Bordeaux/Bordeaux-INP; ENSCBP CNRS, Laboratoire de Chimie des Polymères Organiques (UMR5629); 16 avenue Pey Berland 33607 Pessac Cedex France
- Institute of Nuclear Medicine and Allied Sciences; Brig. S.K. Mazumdar Road Timarpur Delhi 110054 India
- Centre for Biomedical Engineering; Indian Institute of Technology; Hauz Khas New Delhi 110016 India
- CNRS; Laboratoire de Chimie des Polymeres Organiques (UMR5629); Pessac France
| | - Silvia Mazzaferro
- Université de Bordeaux/Bordeaux-INP; ENSCBP CNRS, Laboratoire de Chimie des Polymères Organiques (UMR5629); 16 avenue Pey Berland 33607 Pessac Cedex France
- CNRS; Laboratoire de Chimie des Polymeres Organiques (UMR5629); Pessac France
| | - Julie Thevenot
- Université de Bordeaux/Bordeaux-INP; ENSCBP CNRS, Laboratoire de Chimie des Polymères Organiques (UMR5629); 16 avenue Pey Berland 33607 Pessac Cedex France
- CNRS; Laboratoire de Chimie des Polymeres Organiques (UMR5629); Pessac France
| | - Christophe Schatz
- Université de Bordeaux/Bordeaux-INP; ENSCBP CNRS, Laboratoire de Chimie des Polymères Organiques (UMR5629); 16 avenue Pey Berland 33607 Pessac Cedex France
- CNRS; Laboratoire de Chimie des Polymeres Organiques (UMR5629); Pessac France
| | - Anant Bhatt
- Institute of Nuclear Medicine and Allied Sciences; Brig. S.K. Mazumdar Road Timarpur Delhi 110054 India
| | - Bilikere S. Dwarakanath
- Institute of Nuclear Medicine and Allied Sciences; Brig. S.K. Mazumdar Road Timarpur Delhi 110054 India
| | - Harpal Singh
- Centre for Biomedical Engineering; Indian Institute of Technology; Hauz Khas New Delhi 110016 India
| | - Anil K. Mishra
- Institute of Nuclear Medicine and Allied Sciences; Brig. S.K. Mazumdar Road Timarpur Delhi 110054 India
| | - Sebastien Lecommandoux
- Université de Bordeaux/Bordeaux-INP; ENSCBP CNRS, Laboratoire de Chimie des Polymères Organiques (UMR5629); 16 avenue Pey Berland 33607 Pessac Cedex France
- CNRS; Laboratoire de Chimie des Polymeres Organiques (UMR5629); Pessac France
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Zhao Y, Luo Z, Li M, Qu Q, Ma X, Yu SH, Zhao Y. A Preloaded Amorphous Calcium Carbonate/Doxorubicin@Silica Nanoreactor for pH-Responsive Delivery of an Anticancer Drug. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408510] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Zhao Y, Luo Z, Li M, Qu Q, Ma X, Yu SH, Zhao Y. A Preloaded Amorphous Calcium Carbonate/Doxorubicin@Silica Nanoreactor for pH-Responsive Delivery of an Anticancer Drug. Angew Chem Int Ed Engl 2014; 54:919-22. [DOI: 10.1002/anie.201408510] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/31/2014] [Indexed: 12/12/2022]
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39
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Liposome co-encapsulation of synergistic combination of irinotecan and doxorubicin for the treatment of intraperitoneally grown ovarian tumor xenograft. J Control Release 2013. [DOI: 10.1016/j.jconrel.2013.10.025] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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40
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41
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Zhang H, Wang ZY, Gong W, Li ZP, Mei XG, Lv WL. Development and characteristics of temperature-sensitive liposomes for vinorelbine bitartrate. Int J Pharm 2011; 414:56-62. [DOI: 10.1016/j.ijpharm.2011.05.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Revised: 03/11/2011] [Accepted: 05/01/2011] [Indexed: 10/18/2022]
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Gadolinium-based cancer therapeutic liposomes for chemotherapeutics and diagnostics. Colloids Surf B Biointerfaces 2011; 84:82-7. [DOI: 10.1016/j.colsurfb.2010.12.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Revised: 12/09/2010] [Accepted: 12/13/2010] [Indexed: 01/10/2023]
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Gubernator J. Active methods of drug loading into liposomes: recent strategies for stable drug entrapment and increased in vivo activity. Expert Opin Drug Deliv 2011; 8:565-80. [PMID: 21492058 DOI: 10.1517/17425247.2011.566552] [Citation(s) in RCA: 214] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION The use of liposomes increases the therapeutic index of many drugs, and also offers drug targeting and controlled release. The commercial impact of liposomes is strengthened by the invention of several active drug encapsulation methods, allowing the encapsulation of several weak base or weak acid drugs with very high drug-to-lipid ratios. AREAS COVERED In recent years, there have been reports on several new approaches to retain more hydrophobic drugs inside liposomes, in the circulation. Most of these methods apply drug precipitation inside preformed liposomes, as low soluble complexes with ions or chemicals. In some cases, drug derivatization was applied to enable active encapsulation of hydrophobic drugs, previously not reported to encapsulate, by active or remote loading. This review presents and compares most of the existing methods of active drug encapsulation and outlines recent strategies to achieve stable drug encapsulation in vivo. EXPERT OPINION At present, there is no single universal encapsulation method that offers stable encapsulation of most drugs; each drug requires a different approach to manage all of its properties. Now is the time to combine all these strategies to achieve the goal of a complex, but successful, anticancer therapy.
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Affiliation(s)
- Jerzy Gubernator
- University of Wrocław, Faculty of Biotechnology, Laboratory of Lipids and Liposomes, Przybyszewskiego 63/77, 51-148 Wrocław, Poland.
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Kheirolomoom A, Mahakian LM, Lai CY, Lindfors HA, Seo JW, Paoli EE, Watson KD, Haynam EM, Ingham ES, Xing L, Cheng RH, Borowsky AD, Cardiff RD, Ferrara KW. Copper-doxorubicin as a nanoparticle cargo retains efficacy with minimal toxicity. Mol Pharm 2011; 7:1948-58. [PMID: 20925429 DOI: 10.1021/mp100245u] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Repeated administration of chemotherapeutics is typically required for the effective treatment of highly aggressive tumors and often results in systemic toxicity. We have created a copper-doxorubicin complex within the core of liposomes and applied the resulting particle in multidose therapy. Copper and doxorubicin concentrations in the blood pool were similar at 24 h (∼40% of the injected dose), indicating stable circulation of the complex. Highly quenched doxorubicin fluorescence remained in the blood pool over tens of hours, with fluorescence increasing only with the combination of liposome disruption and copper trans-chelation. At 48 h after injection, doxorubicin fluorescence within the heart and skin was one-fifth and one-half, respectively, of fluorescence observed with ammonium sulfate-loaded doxorubicin liposomes. After 28 days of twice per week doxorubicin administration of 6 mg/kg, systemic toxicity (cardiac hypertrophy and weight and hair loss) was not detected with the copper-doxorubicin liposomes but was substantial with ammonium sulfate-loaded doxorubicin liposomes. We then incorporated two strategies designed to enhance efficacy, mTOR inhibition (rapamycin) to slow proliferation and therapeutic ultrasound to enhance accumulation and local diffusion. Tumor accumulation was ∼10% ID/g and was enhanced approximately 2-fold with the addition of therapeutic ultrasound. After the 28-day course of therapy, syngeneic tumors regressed to a premalignant phenotype of ∼(1 mm)(3) or could not be detected.
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Affiliation(s)
- Azadeh Kheirolomoom
- Department of Biomedical Engineering, 451 East Health Sciences Drive, School of Medicine, University of California, Davis, Davis, California 95616, United States
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Ong JCL, Sun F, Chan E. Development of stealth liposome coencapsulating doxorubicin and fluoxetine. J Liposome Res 2011; 21:261-71. [PMID: 21226547 DOI: 10.3109/08982104.2010.545070] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Stealth liposomes form an important subset of liposomes, demonstrating prolonged circulation half-life and improved safety in vivo. Caelyx® (liposomal doxorubicin; Merck & Co., Whitehouse Station, New Jersey, USA) is a successful example of the application of stealth liposomes in anticancer treatment. However, multidrug resistance (MDR) to chemotherapy still remains a critical problem, accounting for more than 90% of treatment failure in patients with advanced cancer. To circumvent MDR, fluoxetine and doxorubicin were tested in combination for synergistic activity in MCF-7 (human breast carcinoma) and MCF-7/adr (doxorubicin-resistant human breast carcinoma) cells using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cell-viability assay. Coencapsulation of doxorubicin and fluoxetine, using an ammonium sulphate gradient, was investigated, and a factorial experiment was designed to determine the optimal drug-to-lipid (D/L) ratio for coencapsulation. Drug release from Dox-Flu-SL (stealth liposome coencapsulating doxorubicin and fluoxetine) under both in vitro and in vivo conditions was determined. In MCF-7 cells, synergism was demonstrated at specific doxorubicin:fluoxetine ratios of between 0.09 and 0.5 (molar ratio), while MCF/7/adr cells demonstrated synergism across all drug ratios. Coencapsulation of doxorubicin and fluoxetine (Dox-Flu-SL) was successfully achieved (optimal doxorubicin:fluoxetine:lipid molar ratio of 0.02:0.05:1), obtaining a mean concentration of 257 ± 12.1 and 513 ± 29.3 μM for doxorubicin and fluoxetine, respectively. Most important, Dox-Flu-SL demonstrated drug release in synergistic ratios in cell-culture media, accounting for the improved cytotoxicity of Dox-Flu-SL over liposomal doxorubicin (LD) in both MCF-7 and MCF-7/adr cells. Pharmacokinetic studies also revealed that Dox-Flu-SL effectively prolonged drug-circulation time and reduced tissue biodistribution. Dox-Flu-SL presents a promising anticancer formulation, capable of effective reversal of drug resistance, and may constitute a novel approach for cancer therapy.
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Affiliation(s)
- Jasmine Chiat-Ling Ong
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore, Singapore
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The role of the transition metal copper and the ionophore A23187 in the development of Irinophore C™. Pharm Res 2010; 28:848-57. [PMID: 21181548 DOI: 10.1007/s11095-010-0340-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Accepted: 11/29/2010] [Indexed: 10/18/2022]
Abstract
PURPOSE A liposomal irinotecan formulation referred to as Irinophore C relies on the ability of copper to complex irinotecan within the liposome. It is currently being evaluated for critical drug-loading parameters. Studies presented here were designed to determine the optimum copper concentration required for the effective encapsulation and retention of irinotecan into liposomes. METHODS Distearoylphosphatidylcholine/cholesterol liposomes were formulated using buffers containing various copper or manganese concentrations, and irinotecan loading was determined in the presence and absence of divalent metal ionophore A23187. The rate and extent of irinotecan encapsulation and the rate of irinotecan release from the liposomes were assessed. The amount of copper retained inside liposomes following irinotecan loading and the effect of copper on membrane permeability were determined. RESULTS Efficient (>98%) irinotecan loading was achieved using encapsulated copper concentrations of 50 mM. However, irinotecan release was copper concentration dependent, with a minimum 300 mM concentration required for optimal drug retention. The presence of copper increased liposomal membrane permeability. CONCLUSION Results explain why irinotecan loading rates are enhanced in the presence of formulations prepared with copper, and we speculate that the Irinophore C formulation exhibits improved drug retention, due to generation of a complex between copper and irinotecan.
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Effects of polyethylene glycol spacer length and ligand density on folate receptor targeting of liposomal Doxorubicin in vitro. JOURNAL OF DRUG DELIVERY 2010; 2011:160967. [PMID: 21490746 PMCID: PMC3065921 DOI: 10.1155/2011/160967] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 11/22/2010] [Accepted: 11/22/2010] [Indexed: 12/05/2022]
Abstract
The folate receptor is an attractive target for selective tumor delivery of liposomal doxorubicin (DXR) because it is abundantly expressed in a large percentage of tumors. This study examined the effect of polyethylene glycol (PEG) spacer length and folate ligand density on the targeting ability of folate-modified liposomes. Liposomes were modified with folate-derivatized PEG-distearoylphosphatidylethanolamine with PEG molecular weights of 2000, 3400, or 5000. The association of DXR-loaded liposomes with KB cells, which overexpress the folate receptor, was evaluated by flow cytometry at various ratios of folate modification. A low ratio of folate modification with a sufficiently long PEG chain showed the highest folate receptor-mediated association with the cells, but did not show the highest in vitro cytotoxicity. DXR release from folate-modified liposomes in endosomes might be different. These findings will be useful for designing folate receptor-targeting carriers.
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Gölcü A, Yücesoy C, Serin S. Synthesis and Characterization of Metal Complexes of Acebutolol, Atenolol, and Propranolol Antihypertension Drugs. ACTA ACUST UNITED AC 2010. [DOI: 10.1081/sim-120039270] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Ayşegül Gölcü
- a Department of Chemistry, Faculty of Science and Arts , University of Kahramanmaras Sütçü İmam , Ferhuş, Kahramanmaraş, Turkey
| | - Cem Yücesoy
- b Department of Analytical Chemistry, Faculty of Pharmacy , University of Ankara , Tandogˇan, Ankara, Turkey
| | - Selahattin Serin
- c Department of Chemistry, Faculty of Science and Arts , Çukurova University , 01100, Balcalı, Adana, Turkey
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Sanson C, Schatz C, Le Meins JF, Soum A, Thévenot J, Garanger E, Lecommandoux S. A simple method to achieve high doxorubicin loading in biodegradable polymersomes. J Control Release 2010; 147:428-35. [DOI: 10.1016/j.jconrel.2010.07.123] [Citation(s) in RCA: 293] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 07/23/2010] [Accepted: 07/29/2010] [Indexed: 11/26/2022]
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Murugaiah V, Zedalis W, Lavine G, Charisse K, Manoharan M. Reversed-phase high-performance liquid chromatography method for simultaneous analysis of two liposome-formulated short interfering RNA duplexes. Anal Biochem 2010; 401:61-7. [DOI: 10.1016/j.ab.2010.02.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Revised: 02/05/2010] [Accepted: 02/09/2010] [Indexed: 12/24/2022]
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