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Koga K, Kajimoto S, Yoshizaki Y, Takahashi H, Kageyama L, Konno T, Nakabayashi T. Establishment of a Method for the Introduction of Poorly Water-Soluble Drugs in Cells and Evaluation of Intracellular Concentration Distribution Using Resonance Raman Imaging. J Phys Chem B 2024; 128:1350-1359. [PMID: 38295808 DOI: 10.1021/acs.jpcb.3c06601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Label-free measurement is essential to understand the metabolism of drug molecules introduced into cells. Raman imaging is a powerful method to investigate intracellular drug molecules because it provides in situ label-free observation of introduced molecules. In this study, we propose that Raman imaging can be used not only to observe the intracellular distribution of drug molecules but also to quantitatively visualize the concentration distribution reflecting each organelle in a single living cell using the Raman band of extracellular water as an intensity standard. We dissolved poorly water-soluble all-trans-retinoic acid (ATRA) in water using a cytocompatible amphiphilic phospholipid polymer, poly[2-methacryloyloxyethyl phosphorylcholine-co-n-butyl methacrylate] (PMB) as a solubilizing reagent, introduced it into cells, and obtained the intracellular concentration distribution of ATRA. ATRA was concentrated in the cells and mainly localized to mitochondria and lipid droplets, interacting strongly with mitochondria and weakly with lipid droplets. Poorly water-soluble β-carotene was also introduced into cells using PMB but was not concentrated intracellularly, indicating that β-carotene does not interact specifically with intracellular molecules. We established a protocol for the solubilization and intracellular uptake of poorly water-soluble molecules using PMB and obtaining their concentration distribution using Raman microscopy.
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Affiliation(s)
- Keisuke Koga
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Shinji Kajimoto
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Yuta Yoshizaki
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Hiroaki Takahashi
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Lisa Kageyama
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Tomohiro Konno
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Takakazu Nakabayashi
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
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Yoshie K, Ishihara K. [Solubilization of Poorly Water-soluble Drugs with Amphiphilic Phospholipid Polymers]. YAKUGAKU ZASSHI 2023; 143:745-756. [PMID: 37661440 DOI: 10.1248/yakushi.23-00023] [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] [Indexed: 09/05/2023]
Abstract
Most drug candidates developed in recent years are poorly water-soluble, which is a key challenge in pharmaceutical science. Various solubilization methods have been investigated thus far, most of which require solubilizers that provide a local hydrophobic environment wherein a drug can dissolve or induce interactions with drug molecules. We have focused on amphiphilic 2-methacryloyloxyethyl phosphoryl choline (MPC) polymers. In addition to the ease of molecular design of amphiphilic MPC polymers owing to their chemical structures, they have been reported to possess high biocompatibility in various biomaterial applications. Additionally, amphiphilic MPC polymers have been applied in the pharmaceutical field, especially in solubilization. We have qualitatively and quantitatively evaluated the effects of the chemical structure and physical properties of the solubilizer on the MPC polymers. In particular, MPC polymers with different chemical structures were designed and synthesized. The inner polarity and molecular mobility in the polymer aggregates were evaluated, indicating that the intrinsic properties reflect the chemical structure of the polymer. Additionally, amphiphilic MPC polymers were used to improve the solubility of poorly water-soluble drugs and as solid dispersion carriers, and they exhibited superior solubilizing abilities compared to a commonly used polymer. Furthermore, the solubility of biopharmaceuticals, such as peptides, was improved. It is possible to design and synthesize optimal structures based on the polarity of the hydrophobic environment and the intermolecular interaction with a drug. This research provides a unified interpretation of drugs and efficiently summarizes knowledge about drug development, which will facilitate the efficient and rapid development of drug formulations.
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Affiliation(s)
- Kensuke Yoshie
- Formulation Technology Research Laboratories, Daiichi Sankyo., Ltd
| | - Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering, The University of Tokyo
- Division of Materials and Manufacturing Science, School of Engineering, Osaka University
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3
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Liang B, Lusvarghi S, Ambudkar SV, Huang HC. Mechanistic Insights into Photodynamic Regulation of Adenosine 5'-Triphosphate-Binding Cassette Drug Transporters. ACS Pharmacol Transl Sci 2021; 4:1578-1587. [PMID: 36118950 PMCID: PMC9476936 DOI: 10.1021/acsptsci.1c00138] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Efforts to overcome cancer multidrug resistance through inhibition of the adenosine triphosphate-binding cassette (ABC) drug transporters ABCB1 and ABCG2 have largely failed in the clinic. The challenges faced during the development of non-toxic modulators suggest a need for a conceptual shift to new strategies for the inhibition of ABC drug transporters. Here, we reveal the fundamental mechanisms by which photodynamic therapy (PDT) can be exploited to manipulate the function and integrity of ABC drug transporters. PDT is a clinically relevant, photochemistry-based tool that involves the light activation of photosensitizers to generate reactive oxygen species. ATPase activity and in silico molecular docking analyses show that the photosensitizer benzoporphyrin derivative (BPD) binds to ABCB1 and ABCG2 with micromolar half-maximal inhibitory concentrations in the absence of light. Light activation of BPD generates singlet oxygen to further reduce the ATPase activity of ABCB1 and ABCG2 by up to 12-fold in an optical dose-dependent manner. Gel electrophoresis and Western blotting revealed that light-activated BPD induces the aggregation of these transporters by covalent cross-linking. We provide a proof of principle that PDT affects the function of ABCB1 and ABCG2 by modulating the ATPase activity and protein integrity of these transporters. Insights gained from this study concerning the photodynamic manipulation of ABC drug transporters could aid in the development and application of new optical tools to overcome the multidrug resistance that often develops after cancer chemotherapy.
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Affiliation(s)
- Barry
J. Liang
- Fischell
Department of Bioengineering, University
of Maryland, College Park, Maryland 20742, United States
- Laboratory
of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Sabrina Lusvarghi
- Laboratory
of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Suresh V. Ambudkar
- Laboratory
of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Huang-Chiao Huang
- Fischell
Department of Bioengineering, University
of Maryland, College Park, Maryland 20742, United States
- Marlene
and Stewart Greenebaum Cancer Center, University
of Maryland School of Medicine, Baltimore, Maryland 21201, United States
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Clement S, Anwer AG, Pires L, Campbell J, Wilson BC, Goldys EM. Radiodynamic Therapy Using TAT Peptide-Targeted Verteporfin-Encapsulated PLGA Nanoparticles. Int J Mol Sci 2021; 22:ijms22126425. [PMID: 34204001 PMCID: PMC8232618 DOI: 10.3390/ijms22126425] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/08/2021] [Accepted: 06/11/2021] [Indexed: 12/15/2022] Open
Abstract
Radiodynamic therapy (RDT) is a recent extension of conventional photodynamic therapy, in which visible/near infrared light irradiation is replaced by a well-tolerated dose of high-energy X-rays. This enables greater tissue penetration to allow non-invasive treatment of large, deep-seated tumors. We report here the design and testing of a drug delivery system for RDT that is intended to enhance intra- or peri-nuclear localization of the photosensitizer, leading to DNA damage and resulting clonogenic cell kill. This comprises a photosensitizer (Verteporfin, VP) incorporated into poly (lactic-co-glycolic acid) nanoparticles (PLGA NPs) that are surface-functionalized with a cell-penetrating HIV trans-activator of transcription (TAT) peptide. In addition to a series of physical and photophysical characterization studies, cytotoxicity tests in pancreatic (PANC-1) cancer cells in vitro under 4 Gy X-ray exposure from a clinical 6 MV linear accelerator (LINAC) showed that TAT targeting of the nanoparticles markedly enhances the effectiveness of RDT treatment, particularly when assessed by a clonogenic, i.e., DNA damage-mediated, cell kill.
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Affiliation(s)
- Sandhya Clement
- ARC Centre of Excellence in Nanoscale Biophotonics, The Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia; (A.G.A.); (J.C.); (E.M.G.)
- ARC Centre of Excellence in Nanoscale Biophotonics, Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia
- Correspondence:
| | - Ayad G. Anwer
- ARC Centre of Excellence in Nanoscale Biophotonics, The Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia; (A.G.A.); (J.C.); (E.M.G.)
- ARC Centre of Excellence in Nanoscale Biophotonics, Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia
| | - Layla Pires
- Princess Margaret Cancer Centre, University Health Network and Department of Medical Biophysics, University of Toronto, Toronto, ON M5S 1A1, Canada; (L.P.); (B.C.W.)
| | - Jared Campbell
- ARC Centre of Excellence in Nanoscale Biophotonics, The Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia; (A.G.A.); (J.C.); (E.M.G.)
- ARC Centre of Excellence in Nanoscale Biophotonics, Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia
| | - Brian C. Wilson
- Princess Margaret Cancer Centre, University Health Network and Department of Medical Biophysics, University of Toronto, Toronto, ON M5S 1A1, Canada; (L.P.); (B.C.W.)
| | - Ewa M. Goldys
- ARC Centre of Excellence in Nanoscale Biophotonics, The Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia; (A.G.A.); (J.C.); (E.M.G.)
- ARC Centre of Excellence in Nanoscale Biophotonics, Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109, Australia
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Han L, Wang Y, Huang X, Liu F, Ma C, Feng F, Zhang J, Liu W, Qu W, Pang H, Xue J. Specific-oxygen-supply functionalized core-shell nanoparticles for smart mutual-promotion between photodynamic therapy and gambogic acid-induced chemotherapy. Biomaterials 2020; 257:120228. [DOI: 10.1016/j.biomaterials.2020.120228] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 07/02/2020] [Accepted: 07/06/2020] [Indexed: 12/15/2022]
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6
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Establishment of a model of sentinel lymph node metastasis using immunodeficient swine. Sci Rep 2019; 9:7923. [PMID: 31138877 PMCID: PMC6538626 DOI: 10.1038/s41598-019-44171-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 03/13/2019] [Indexed: 02/08/2023] Open
Abstract
Lymph node metastasis occurs via the migration of cancer cells through the lymphatic system. Sentinel lymph node (SLN) biopsy is a common diagnostic strategy. SLNs have been studied using healthy rodents and large animals without metastasis. Here we used immunodeficient swine to establish a model of lymph node metastasis. We used RAG2-knockout immunodeficient swine. A431 human epithelial carcinoma cells expressing green fluorescent protein were injected subcutaneously into the posterior sides of the auricle, forelimb and hindlimb of knockout swine. Indigo carmine dye was injected subcutaneously 8 weeks after tumour cell transplantation. SLNs were extracted, observed using a stereoscopic fluorescence microscope and analysed histologically using haematoxylin and eosin staining, and immunohistochemistry. Lymphoid follicles were found in wild-type swine, and a few aggregated lymphocytes and immature lymphoid follicles were observed in knockout swine. Fluorescence in the lymph nodes indicated metastasis of tumour cells to the lymph nodes. Tumour cells replaced lymph node architectures, showed high-grade nuclear atypia and formed irregular tumour nests. Our model may be useful for the preclinical validation of diagnostic methods and minimally invasive treatment of metastatic cancer.
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Ishihara K, Mu M, Konno T. Water-soluble and amphiphilic phospholipid copolymers having 2-methacryloyloxyethyl phosphorylcholine units for the solubilization of bioactive compounds. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:844-862. [DOI: 10.1080/09205063.2017.1377023] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Mingwei Mu
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Tomohiro Konno
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
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