1
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Ogawa M. Targeted Molecular Imaging and Therapy Based on Nuclear and Optical Technologies. Biol Pharm Bull 2024; 47:1066-1071. [PMID: 38825459 DOI: 10.1248/bpb.b24-00008] [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: 06/04/2024]
Abstract
Both nuclear and optical imaging are used for in vivo molecular imaging. Nuclear imaging displays superior quantitativity, and it permits imaging in deep tissues. Thus, this method is widely used clinically. Conversely, because of the low permeability of visible to near-IR light in living animals, it is difficult to visualize deep tissues via optical imaging. However, the light at these wavelengths has no ionizing effect, and it can be used without any restrictions in terms of location. Furthermore, optical signals can be controlled in vivo to accomplish target-specific imaging. Nuclear medicine and phototherapy have also evolved to permit targeted-specific imaging. In targeted nuclear therapy, beta emitters are conventionally used, but alpha emitters have received significant attention recently. Concerning phototherapy, photoimmunotherapy with near-IR light was approved in Japan in 2020. In this article, target-specific imaging and molecular targeted therapy utilizing nuclear medicine and optical technologies are discussed.
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Affiliation(s)
- Mikako Ogawa
- Laboratory of Bioanalysis and Molecular Imaging, Faculty of Pharmaceutical Sciences, Hokkaido University
- Institute for Chemical Reaction Design and Discovery (ICReDD), Hokkaido University
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2
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Sandberg E, Srambickal CV, Piguet J, Liu H, Widengren J. Local monitoring of photosensitizer transient states provides feedback for enhanced efficiency and targeting selectivity in photodynamic therapy. Sci Rep 2023; 13:16829. [PMID: 37803073 PMCID: PMC10558575 DOI: 10.1038/s41598-023-43625-6] [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: 07/10/2023] [Accepted: 09/26/2023] [Indexed: 10/08/2023] Open
Abstract
Photodynamic therapy (PDT) fundamentally relies on local generation of PDT precursor states in added photosensitizers (PS), particularly triplet and photo-radical states. Monitoring these states in situ can provide important feedback but is difficult in practice. The states are strongly influenced by local oxygenation, pH and redox conditions, often varying significantly at PDT treatment sites. To overcome this problem, we followed local PDT precursor state populations of PS compounds, via their fluorescence intensity response to systematically varied excitation light modulation. Thereby, we could demonstrate local monitoring of PDT precursor states of methylene blue (MB) and IRdye700DX (IR700), and determined their transitions rates under different oxygenation, pH and redox conditions. By fiber-optics, using one fiber for both excitation and fluorescence detection, the triplet and photo-radical state kinetics of locally applied MB and IR700 could then be monitored in a tissue sample. Finally, potassium iodide and ascorbate were added as possible PDT adjuvants, enhancing intersystem crossing and photoreduction, respectively, and their effects on the PDT precursor states of MB and IR700 could be locally monitored. Taken together, the presented procedure overcomes current methodological limitations and can offer feedback, guiding both excitation and PDT adjuvant application, and thereby more efficient and targeted PDT treatments.
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Affiliation(s)
- Elin Sandberg
- Experimental Biomolecular Physics, Dept. Applied Physics, Royal Institute of Technology (KTH), Albanova Univ Center, 106 91, Stockholm, Sweden
| | - Chinmaya V Srambickal
- Experimental Biomolecular Physics, Dept. Applied Physics, Royal Institute of Technology (KTH), Albanova Univ Center, 106 91, Stockholm, Sweden
| | - Joachim Piguet
- Experimental Biomolecular Physics, Dept. Applied Physics, Royal Institute of Technology (KTH), Albanova Univ Center, 106 91, Stockholm, Sweden
| | - Haichun Liu
- Experimental Biomolecular Physics, Dept. Applied Physics, Royal Institute of Technology (KTH), Albanova Univ Center, 106 91, Stockholm, Sweden
| | - Jerker Widengren
- Experimental Biomolecular Physics, Dept. Applied Physics, Royal Institute of Technology (KTH), Albanova Univ Center, 106 91, Stockholm, Sweden.
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3
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Yamashita S, Kojima M, Onda N, Shibutani M. In Vitro Comparative Study of Near-Infrared Photoimmunotherapy and Photodynamic Therapy. Cancers (Basel) 2023; 15:3400. [PMID: 37444510 DOI: 10.3390/cancers15133400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/18/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Near-infrared photoimmunotherapy (NIR-PIT) is a new phototherapy that utilizes a monoclonal antibody (mAb) against cancer antigens and a phthalocyanine dye, IRDye700DX (IR700) conjugate (mAb-IR700). Photodynamic therapy (PDT) is a combination therapy that utilizes photoreactive agents and light irradiation as well as NIR-PIT. In the present study, we compared these therapies in vitro. The characterization of cellular binding/uptake specificity and cytotoxicity were examined using two mAb-IR700 forms and a conventional PDT agent, talaporfin sodium, in three cell lines. As designed, mAb-IR700 had high molecular selectivity and visualized target molecule-positive cells at the lowest concentration examined. NIR-PIT induced necrosis and damage-associated molecular patterns (DAMPs), a surrogate maker of immunogenic cell death. In contrast, talaporfin sodium was taken up by cells regardless of cell type, and its uptake was enhanced in a concentration-dependent manner. PDT induced cell death, with the pattern of cell death shifting from apoptosis to necrosis depending on the concentration of the photosensitizer. Induction of DAMPs was observed at the highest concentration, but their sensitivity differed among cell lines. Overall, our data suggest that molecule-specific NIR-PIT may have potential advantages compared with PDT in terms of the efficiency of tumor visualization and induction of DAMPs.
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Affiliation(s)
- Susumu Yamashita
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu 183-8509, Tokyo, Japan
- Medical Evaluation Engineering, Olympus Medical Systems Corporation, 2-3 Kuboyama-cho, Hachioji 192-8512, Tokyo, Japan
| | - Miho Kojima
- Medical Evaluation Engineering, Olympus Medical Systems Corporation, 2-3 Kuboyama-cho, Hachioji 192-8512, Tokyo, Japan
| | - Nobuhiko Onda
- Medical Evaluation Engineering, Olympus Medical Systems Corporation, 2-3 Kuboyama-cho, Hachioji 192-8512, Tokyo, Japan
| | - Makoto Shibutani
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu 183-8509, Tokyo, Japan
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4
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Kobayashi H, Choyke PL, Ogawa M. The chemical basis of cytotoxicity of silicon-phthalocyanine-based near infrared photoimmunotherapy (NIR-PIT) and its implications for treatment monitoring. Curr Opin Chem Biol 2023; 74:102289. [PMID: 36966701 PMCID: PMC10225316 DOI: 10.1016/j.cbpa.2023.102289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 02/09/2023] [Accepted: 02/22/2023] [Indexed: 04/03/2023]
Abstract
Near infrared photoimmunotherapy (NIR-PIT) is a new cancer therapy based on the photo-induced ligand release reaction of a silicon-phthalocyanine derivative, IRDye700DX (IR700), that causes rapid cell death. Following exposure to an antibody-IR700-conjugate, cells exposed to NIR light within minutes undergo rapid swelling, blebbing, and finally, bursting. The photo-induced ligand release reaction also induces immediate loss of IR700 fluorescence due to dimerization or aggregation of the antibody-IR700 conjugate allowing for real time monitoring of NIR-PIT therapy.
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Affiliation(s)
- Hisataka Kobayashi
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892-1088, United States.
| | - Peter L Choyke
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892-1088, United States
| | - Mikako Ogawa
- Laboratory for Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, 060-0812, Japan
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5
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Furumoto H, Okada R, Kato T, Wakiyama H, Inagaki F, Fukushima H, Okuyama S, Furusawa A, Choyke PL, Kobayashi H. Optimal Light Dose for hEGFR-Targeted Near-Infrared Photoimmunotherapy. Cancers (Basel) 2022; 14:cancers14164042. [PMID: 36011036 PMCID: PMC9406827 DOI: 10.3390/cancers14164042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Near-infrared photoimmunotherapy (NIR-PIT) is a cancer therapy that selectively destroys target cells by first injecting monoclonal antibodies conjugated with a photon absorber (IRDye700DX) into the subject and then activating it at the tumor site by applying nonthermal doses of NIR light at 690 nm. NIR-PIT causes immediate immunogenic cell death but also induces a slightly delayed activation of anti-tumor host immunity which can result in complete responses. The immediate therapeutic effect of NIR-PIT can be enhanced by increasing the dose of near-infrared light irradiation; however, this can cause local side effects such as edema. Since the activation of host immunity also adds to the anti-tumor effect it might be possible to reduce the light dose to avoid immediate side effects while maintaining efficacy of the therapy. In this study, we varied the light dose needed to achieve the maximum therapeutic effect in an immunocompetent mouse model. We show that higher-than-needed light doses caused significant local transient edema that could be avoided with lower but still effective light doses. Here, we present our strategy for optimizing the light dose for NIR-PIT. Abstract Near-infrared photoimmunotherapy (NIR-PIT) is a newly developed cancer therapy that targets cancer cells using a monoclonal antibody-photon absorber conjugate (APC) that is bound to the target cell surface. Subsequent application of low levels of NIR light results in immediate cancer cell death. The anti-tumor effect of NIR-PIT in immunocompromised mice depends on immediate cancer cell death; therefore, the efficacy increases in a light-dose-dependent manner. However, NIR-PIT also induces a strong anti-tumor immune activation in immunocompetent mice that begins soon after therapy. Thus, it may be possible to reduce the light dose, which might otherwise cause local edema while maintaining therapeutic efficacy. In this study, we determined the optimal dose of NIR light in NIR-PIT based on a comparison of the therapeutic and adverse effects. Either one of two monoclonal antibodies (mAbs) against human epidermal growth factor receptor (hEGFR), Cetuximab or Panitumumab, were conjugated with a photo-absorbing chemical, IRDye700DX (IR700), and then injected in hEGFR-expressing mEERL (mEERL-hEGFR) tumor-bearing C57BL/6 immunocompetent mice or A431-GFP-luc tumor-bearing athymic immunocompromised mice. NIR light was varied between 0 to 100 J/cm2 one day after administration of APC. In an immunocompromised mouse model, tumor growth was inhibited in a light-dose-dependent manner, yet extensive local edema and weight loss were observed at 100 J/cm2. On the other hand, in an immunocompetent mouse model using the mEERL-hEGFR cell line, maximal tumor response was achieved at 50 J/cm2, with a commensurate decrease in local edema. In this study, we show that a relatively low dose of NIR light is sufficient in an immunocompetent mouse model and avoids side effects seen with higher light doses required in immunocompetent mice. Thus, light dosing can be optimized in NIR-PIT based on the expected immune response.
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Takakura H, Matsuhiro S, Inanami O, Kobayashi M, Saita K, Yamashita M, Nakajima K, Suzuki M, Miyamoto N, Taketsugu T, Ogawa M. Ligand release from silicon phthalocyanine dyes triggered by X-ray irradiation. Org Biomol Chem 2022; 20:7270-7277. [PMID: 35972402 DOI: 10.1039/d2ob00957a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ligand release from silicon phthalocyanine (SiPc) dyes triggered by near-infrared (NIR) light is a key photochemical reaction involving caged compounds based on SiPc. Although NIR light is relatively permeable compared with visible light, this light can be attenuated by tissue absorption and scattering; therefore, using light to induce photochemical reactions deep inside the body is difficult. Herein, because X-rays are highly permeable and can produce radicals through the radiolysis of water, we investigated whether the axial ligands of SiPcs can be cleaved using X-ray irradiation. SiPcs with different axial ligands (alkoxy, siloxy, oxycarbonyl, and phenoxy groups) were irradiated with X-rays under hypoxic conditions. We found that the axial ligands were cleaved via reactions with hydrated electrons (e-aq), not OH radicals, generated from water in response to X-ray irradiation, and SiPc with alkoxy groups exhibited the highest cleavage efficiency. A quantitative investigation revealed that X-ray-induced axial ligand cleavage proceeds via a radical chain reaction. The reaction is expected to be applicable to the molecular design of X-ray-activatable functional molecules in the future.
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Affiliation(s)
- Hideo Takakura
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo 060-0812, Japan.
| | - Shino Matsuhiro
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo 060-0812, Japan.
| | - Osamu Inanami
- Graduate School of Veterinary Medicine, Hokkaido University, Kita-ku, Sapporo 060-0818, Japan
| | - Masato Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan.,WPI-ICReDD, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Kenichiro Saita
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan
| | - Masaki Yamashita
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo 060-0812, Japan.
| | - Kohei Nakajima
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo 060-0812, Japan.
| | - Motofumi Suzuki
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo 060-0812, Japan.
| | - Naoki Miyamoto
- Division of Quantum Science and Engineering, Faculty of Engineering, Hokkaido University, Kita-ku, Sapporo 060-8628, Japan
| | - Tetsuya Taketsugu
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan.,WPI-ICReDD, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Mikako Ogawa
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo 060-0812, Japan.
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7
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Takakura H, Matsuhiro S, Kobayashi M, Goto Y, Harada M, Taketsugu T, Ogawa M. Axial-ligand-cleavable silicon phthalocyanines triggered by near-infrared light toward design of photosensitizers for photoimmunotherapy. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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8
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Soldatenko AS, Lazareva NF. 2,2′-Bis[(chloromethyl)diorganylsilyloxy]azobenzenes. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363221120094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Takakura H. [Research on Photoimmunotherapy Based on Photochemical Property of Molecules]. YAKUGAKU ZASSHI 2022; 142:1313-1319. [PMID: 36450507 DOI: 10.1248/yakushi.22-00122] [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: 06/12/2024]
Abstract
Photoimmunotherapy (PIT) is a new cancer therapy that uses near-infrared (NIR) light and a conjugate of an antibody and a photosensitizer (IR700). Since both NIR light and the conjugate are not toxic for human, PIT has attracted attention as a promising cancer therapy with less side effects. However, there is no photosensitizer for PIT other than IR700. To improve the therapeutic effect, more light-sensitive dye is needed. To this end, we have studied the cytotoxic mechanism of PIT, showing that the hydrophilic axial ligand cleavage of IR700 by NIR light irradiation is important for the cytotoxicity. Herein, I focused on the triplet state (T1) of IR700 because the light-induced axial ligand cleavage reaction is thought to occur via the T1. First, the quantum yield of intersystem crossing, which is the transition efficiency from the excited singlet state (S1) to T1, was determined by analysis of the T1 kinetics using fluorescence correlation spectroscopy (FCS). Also, I examined whether the cytotoxicity of IR700 can be changed in the presence of a triplet quencher. The findings obtained here will be important information for the design of a new photosensitizer for PIT in the future.
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Affiliation(s)
- Hideo Takakura
- Laboratory for Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University
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10
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Nakajima K, Miyazaki F, Terada K, Takakura H, Suzuki M, Ogawa M. Comparison of low-molecular-weight ligand and whole antibody in prostate-specific membrane antigen targeted near-infrared photoimmunotherapy. Int J Pharm 2021; 609:121135. [PMID: 34571072 DOI: 10.1016/j.ijpharm.2021.121135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 08/28/2021] [Accepted: 09/23/2021] [Indexed: 12/28/2022]
Abstract
Near-infrared photoimmunotherapy (NIR-PIT) is a cancer phototherapy that uses antibody-IR700 conjugate (Ab-IR700) and NIR light. Ab-IR700 forms aggregates on the plasma membranes of targeted cancer cells after light exposure, inducing lethal physical damage within the membrane. Low-molecular-weight (LMW) ligands are candidate targeting moieties instead of antibodies, but whether LMW-IR700 conjugates induce cell death by aggregation, the same mechanism as Ab-IR700, is unknown. Thus, we investigated differences in cytotoxicity and mechanisms between LMW-IR700 and Ab-IR700 targeting prostate-specific membrane antigen (PSMA). Both conjugates decreased cell viability to the same degree after light irradiation, but different morphological changes were observed in PSMA-positive LNCaP cells by microscopy. Cell swelling and bleb formation were induced by Ab-IR700, but only swelling was observed in cells treated with LMW-IR700, suggesting the cells were damaged via different cytotoxic mechanisms. However, LMW-IR700 induced bleb formation, a hallmark of NIR-PIT with Ab-IR700, when singlet oxygen was quenched or LMW-IR700 was localized only on the plasma membrane. Moreover, the water-soluble axial ligands of LMW-IR700 were cleaved, consistent with previous reports on Ab-IR700. Thus, the main cytotoxic mechanisms of Ab-IR700 and LMW-IR700 differ, although LMW-IR700 on the plasma membrane can cause aggregation-mediated cytotoxicity as well as Ab-IR700.
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Affiliation(s)
- Kohei Nakajima
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Fuka Miyazaki
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Kazuki Terada
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Hideo Takakura
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Motofumi Suzuki
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Mikako Ogawa
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan.
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11
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Inanami O, Hiraoka W, Goto Y, Takakura H, Ogawa M. EPR Characterisation of Phthalocyanine Radical Anions in Near‐Infrared Photocleavage of the Hydrophilic Axial Ligand of a Photoimmunotherapeutic Reagent, IR700. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Osamu Inanami
- Faculty of Veterinary Medicine Hokkaido University Sapporo 060-0818 Japan
| | - Wakako Hiraoka
- Department of Physics School of Science and Technology Meiji University Kawasaki 214-8571 Japan
| | - Yuto Goto
- Faculty of Pharmaceutical Sciences Hokkaido University Sapporo 060-0812 Japan
| | - Hideo Takakura
- Faculty of Pharmaceutical Sciences Hokkaido University Sapporo 060-0812 Japan
| | - Mikako Ogawa
- Faculty of Pharmaceutical Sciences Hokkaido University Sapporo 060-0812 Japan
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12
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Kato T, Okada R, Goto Y, Furusawa A, Inagaki F, Wakiyama H, Furumoto H, Daar D, Turkbey B, Choyke PL, Takakura H, Inanami O, Ogawa M, Kobayashi H. Electron Donors Rather Than Reactive Oxygen Species Needed for Therapeutic Photochemical Reaction of Near-Infrared Photoimmunotherapy. ACS Pharmacol Transl Sci 2021; 4:1689-1701. [PMID: 34661083 DOI: 10.1021/acsptsci.1c00184] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Indexed: 12/20/2022]
Abstract
Near-infrared photoimmunotherapy (NIR-PIT) employs molecularly targeted antibodies conjugated with a photoabsorbing silicon-phthalocyanine dye derivative which binds to cancer cells. Application of NIR light following binding of the antibody-photoabsorber conjugates (APCs) results in ligand release on the dye, dramatic changes in solubility of the APC-antigen complex, and rapid, irreversible cell membrane damage of cancer cells in a highly selective manner, resulting in a highly immunogenic cell death. Clinically, this process results in edema after treatment mediated by reactive oxygen species (ROS). Based on the chemical and biological mechanism of NIR-PIT cytotoxicity and edema formation, in order to minimize acute inflammatory edema without compromising therapeutic effects, l-sodium ascorbate (l-NaAA) was administered to quench harmful ROS and accelerate the ligand release reaction. l-NaAA suppressed acute edema by reducing ROS after NIR-PIT yet did not alter the therapeutic effects. NIR-PIT could be performed safely under existence of l-NaAA without side effects caused by unnecessary ROS production.
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Affiliation(s)
- Takuya Kato
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, 10 Center Drive, Bethesda, Maryland 20892-1088, United States
| | - Ryuhei Okada
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, 10 Center Drive, Bethesda, Maryland 20892-1088, United States
| | - Yuto Goto
- Laboratory for Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Aki Furusawa
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, 10 Center Drive, Bethesda, Maryland 20892-1088, United States
| | - Fuyuki Inagaki
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, 10 Center Drive, Bethesda, Maryland 20892-1088, United States
| | - Hiroaki Wakiyama
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, 10 Center Drive, Bethesda, Maryland 20892-1088, United States
| | - Hideyuki Furumoto
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, 10 Center Drive, Bethesda, Maryland 20892-1088, United States
| | - Dagane Daar
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, 10 Center Drive, Bethesda, Maryland 20892-1088, United States
| | - Baris Turkbey
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, 10 Center Drive, Bethesda, Maryland 20892-1088, United States
| | - Peter L Choyke
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, 10 Center Drive, Bethesda, Maryland 20892-1088, United States
| | - Hideo Takakura
- Laboratory for Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Osamu Inanami
- Laboratory of Radiation Biology, Department of Applied Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Mikako Ogawa
- Laboratory for Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Hisataka Kobayashi
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, 10 Center Drive, Bethesda, Maryland 20892-1088, United States
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13
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Sadraeian M, da Cruz EF, Boyle RW, Bahou C, Chudasama V, Janini LM, Diaz RS, Guimarães FEG. Photoinduced Photosensitizer-Antibody Conjugates Kill HIV Env-Expressing Cells, Also Inactivating HIV. ACS OMEGA 2021; 6:16524-16534. [PMID: 34235324 PMCID: PMC8246456 DOI: 10.1021/acsomega.1c01721] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/27/2021] [Indexed: 06/01/2023]
Abstract
HIV-infected cells persist for decades in patients administered with antiretroviral therapy (ART). Meanwhile, an alarming surge in drug-resistant HIV viruses has been occurring. Addressing these issues, we propose the application of photoimmunotherapy (PIT) against not only HIV Env-expressing cells but also HIV. Previously, we showed that a human anti-gp41 antibody (7B2) conjugated to cationic or anionic photosensitizers (PSs) could specifically target and kill the HIV Env-expressing cells. Here, our photolysis studies revealed that the binding of photoimmunoconjugates (PICs) on the membrane of HIV Env-expressing cells is sufficient to induce necrotic cell death due to physical damage to the membrane by singlet oxygen, which is independent of the type of PSs. This finding persuaded us to study the virus photoinactivation of PICs using two HIV-1 strains, X4 HIV-1 NL4-3 and JR-CSF virus. We observed that the PICs could destroy the viral strains, probably via physical damage on the HIV envelope. In conclusion, we report the application of PIT as a possible dual-tool for HIV immunotherapy and ART by killing HIV-expressing cells and cell-free HIV, respectively.
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Affiliation(s)
- Mohammad Sadraeian
- São Carlos Institute of
Physics, University of São Paulo, Caixa Postal 369, São Carlos, SP CEP 13560-970, Brazil
| | | | - Ross W. Boyle
- Department
of Chemistry, University of Hull, Cottingham Road, Hull HU6 7RX, U.K.
| | - Calise Bahou
- Department
of Chemistry, University College London, London WC1H 0AJ, U.K.
| | - Vijay Chudasama
- Department
of Chemistry, University College London, London WC1H 0AJ, U.K.
| | | | - Ricardo Sobhie Diaz
- Laboratório
de Retrovirologia, Universidade Federal
de São Paulo, São
Paulo, Brazil
| | - Francisco E. G. Guimarães
- São Carlos Institute of
Physics, University of São Paulo, Caixa Postal 369, São Carlos, SP CEP 13560-970, Brazil
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14
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Ogawa M, Takakura H. Photoimmunotherapy: A new cancer treatment using photochemical reactions. Bioorg Med Chem 2021; 43:116274. [PMID: 34139484 DOI: 10.1016/j.bmc.2021.116274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/04/2021] [Accepted: 06/05/2021] [Indexed: 12/23/2022]
Abstract
Photoimmunotherapy (PIT) is a new molecular-targeted phototherapy in which administration of an antibody conjugated to IR700 (Ab-IR700, a phthalocyanine derivative) is followed by irradiation with near-infrared light. PIT induces cell death due to cell membrane damage, and the formation of IR700 aggregates on the cell membrane triggered by photochemical reactions is an important mechanism of cell killing. Specifically, water-soluble axial ligands of IR700 are cleaved by the photochemical reaction, and the phthalocyanine stacks up due to the π-π interaction, resulting in the formation of aggregates. In addition, the formation of IR700 radical anions and their protonation are essential for the progress of this photochemical reaction. The elucidation of these mechanisms may lead to the development of more effective compounds in the future. In addition, the optical properties of phthalocyanine are expected to expand the medical application of phthalocyanine derivatives in the future.
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Affiliation(s)
- Mikako Ogawa
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo 060-0812, Japan.
| | - Hideo Takakura
- Laboratory of Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo 060-0812, Japan
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Takahashi K, Sugiyama A, Ohkubo K, Tatsumi T, Kodama T, Yamatsugu K, Kanai M. Axially-substituted silicon phthalocyanine payloads for antibody-drug conjugates. Synlett 2021. [DOI: 10.1055/a-1503-6425] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
IR700, a silicon phthalocyanine (SiPc) photosensitizer, is an antibody-drug conjugate payload used clinically. It is, however, the sole SiPc payload to date, possibly due to the difficulty of its synthesis, resulting from its asymmetric phathalocyanine skeleton. Here we report a new axially-substituted SiPc payload with easier synthesis. Trastuzumab conjugated with the SiPc showed light- and antigen-dependent cytotoxicity in HER2-overexpressed cancer cell lines.
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Affiliation(s)
- Kazuki Takahashi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Japan
| | - Akira Sugiyama
- Isotope Science Center, The University of Tokyo, Bunkyo-ku, Japan
| | - Kei Ohkubo
- Institute for Advanced Co-Creation Studies, Osaka University, Osaka University, Suita, Japan
- Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Japan
| | - Toshifumi Tatsumi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Japan
| | - Tatsuhiko Kodama
- Research Center for Advanced Science and Technology, The University of Tokyo, Bunkyo-ku, Japan
| | - Kenzo Yamatsugu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
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16
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Paraboschi I, Turnock S, Kramer-Marek G, Musleh L, Barisa M, Anderson J, Giuliani S. Near-InfraRed PhotoImmunoTherapy (NIR-PIT) for the local control of solid cancers: Challenges and potentials for human applications. Crit Rev Oncol Hematol 2021; 161:103325. [PMID: 33836238 PMCID: PMC8177002 DOI: 10.1016/j.critrevonc.2021.103325] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/29/2021] [Accepted: 03/26/2021] [Indexed: 01/10/2023] Open
Abstract
Near-InfraRed PhotoImmunoTherapy (NIR-PIT) is a novel cancer-targeted treatment effected by a chemical conjugation between a photosensitiser (e.g. the NIR phthalocyanine dye IRDye700DX) and a cancer-targeting moiety (e.g. a monoclonal antibody, moAb). Delivery of a conjugate in vivo leads to accumulation at the tumour cell surface by binding to cell surface receptors or antigens. Upon deployment of focal NIR-light, irradiation of the conjugate results in a rapid, targeted cell death. However, the mechanisms of action to produce the cytotoxic effects have yet to be fully understood. Herein, we bring together the current knowledge of NIR-PIT from preclinical and clinical studies in a variety of cancers highlighting the key unanswered research questions. Furthermore, we discuss how to enhance the local control of solid cancers using this novel treatment regimen.
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Affiliation(s)
- Irene Paraboschi
- Wellcome/EPSRC Centre for Interventional & Surgical Sciences, University College London, London, UK
| | - Stephen Turnock
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, UK
| | | | - Layla Musleh
- Department of Specialist Neonatal and Pediatric Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Marta Barisa
- Cancer Section, Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, UK
| | - John Anderson
- Cancer Section, Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, UK; Department of Oncology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, England, UK
| | - Stefano Giuliani
- Wellcome/EPSRC Centre for Interventional & Surgical Sciences, University College London, London, UK; Department of Specialist Neonatal and Pediatric Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
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Watanabe T, Tateno H. Elimination of cells deviated from human induced pluripotent stem cells with a photoactivatable IR700-labelled antibody. Biochem Biophys Res Commun 2021; 554:13-18. [PMID: 33774274 DOI: 10.1016/j.bbrc.2021.03.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 03/15/2021] [Indexed: 11/24/2022]
Abstract
Human induced pluripotent stem cells (hiPSCs) are important starting materials for cell therapy products (CTPs) used for transplantation. During cell culture, hiPSCs often spontaneously undergo morphological changes and lose pluripotency. Such cells are called 'deviated cells', which are deviated from the undifferentiated state of hiPSCs, lack the expression of hiPSC markers and become positive for the early differentiation marker SSEA1 (stage-specific embryonic antigen 1, Lewis X glycan). Previously, we identified fibronectin (FN) as a predominant carrier protein of SSEA1 secreted from deviated cells, but not hiPSCs. A sandwich assay using antibodies (Abs) against FN and SSEA1 was developed for non-destructive quantitative evaluation of deviated cells present in hiPSC cultures. In this study, a novel technology was developed to specifically eliminate deviated cells using an anti-FN Ab along with a near-infrared (NIR) photoabsorber, IRDye700DX N-hydroxysuccinimide ester (IR700), which has been used for cancer photoimmunotherapy. The anti-FN Ab conjugated with the IR700 dye (IR700-αFN) bound to and induced the death of deviated cells upon NIR irradiation. In contrast, IR700-αFN failed to stain the hiPSCs, and IR700-αFN/NIR had little or no effect on survival. Finally, IR700-αFN/NIR irradiation induced selective removal of deviated cells from a mixed culture with hiPSCs, demonstrating that the proposed method is suitable for the removal of unwanted deviated cells present in hiPSC culture for the production of CTPs.
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Affiliation(s)
- Tomoko Watanabe
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8566, Japan
| | - Hiroaki Tateno
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8566, Japan.
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18
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Mitra K, Hartman MCT. Silicon phthalocyanines: synthesis and resurgent applications. Org Biomol Chem 2021; 19:1168-1190. [DOI: 10.1039/d0ob02299c] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Their unique axial bonds and NIR optical properties have made silicon phthalocyanines (SiPcs) valuable compounds. Herein, we present key synthetic strategies and emerging applications of SiPcs over the past decade.
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Affiliation(s)
- Koushambi Mitra
- Department of Chemistry
- Virginia Commonwealth University
- Richmond
- USA
- Massey Cancer Center
| | - Matthew C. T. Hartman
- Department of Chemistry
- Virginia Commonwealth University
- Richmond
- USA
- Massey Cancer Center
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