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Motegi K, Motegi A, Kano K, Yamashita N, Hirotaki K, Oyoshi H, Ariji T, Tachibana H, Akimoto T. Feasibility Study of Robust Treatment Planning in VMAT for Head and Neck Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e699. [PMID: 37786049 DOI: 10.1016/j.ijrobp.2023.06.2183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In general, patient positional uncertainty is considered by adding a geometrically expanded margin to clinical target volume (CTV) in photon radiation therapy. However, this method may not be suitable because image-guided radiotherapy is available. In intensity modulated proton beam therapy, robust treatment planning is currently common to take patient positional uncertainty into account in optimization rather than in margins. The purpose of this study is to assess the feasibility of clinical implementation of the method in volumetric modulated arc therapy (VMAT) for head and neck cancer. We quantitatively evaluated whether the plans with the robust optimization (Robust plans) can adequately cover CTV against patients' positional uncertainties and body shape change throughout a treatment course. MATERIALS/METHODS Ten head and neck cancer patients were chosen, who were treated with PTV-based VMAT plans in our hospital between 2021.5-2022.4. RayStation V10A (RaySearch Laboratories, Stockholm, Sweden) was used for the robust optimization, which was applied to the CTVs with patient positional uncertainty of 5 mm in the 6-axis direction. Dose prescribed to the high- and low-risk CTVs were to 70 and 56 Gy in 35 fractions, respectively. To create the patients' CT images with residual set-up errors and body shape change at the treatment, pseudo simulation-CT images were created by deformable image registration with CBCT and simulation-CT. Dose distribution at the treatment was re-calculated by applying the plan to the pseudo simulation-CT images. The variation of D98 for the high-risk CTV from the time of treatment planning was evaluated on a weekly basis. For comparison, planning target volume (PTV) -based plans (5 mm margin circumference) were created and a similar evaluation was performed. RESULTS D98 for the high-risk CTV varied between -3∼2% in the robust plan and between -5∼1% in the PTV-based plan during the treatment course. There was no significant difference in the amount of D98 variation between the two plans by t-test, except for one case with hypopharyngeal cancer. In this case, D98 for the high-risk CTV varied within ±1% with the PTV-based plan, whereas the value decreased up to 3% with the robust plan (p < 0.05). This case often had a residual setup error of approximately 5 mm at the sites related to the pitch rotation of head, suggesting that the dose distribution for the robust plan was affected by non-rigid positional errors. Patient weight loss during the treatment period was -3.5±2.4 kg, showing a weak correlation (r = -0.33) with the variation in D98 for the high-risk CTV. CONCLUSION The robust treatment planning exhibits comparable CTV coverage to the conventional PTV-based planning against positional uncertainty and body shape change throughout a treatment period. In order to overcome set-up baseline shift by the non-rigid positional errors, re-planning should be recommended. Further planning studies will be conducted to promote clinical implementation of the method.
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Affiliation(s)
- K Motegi
- Section of Radiation Safety and Quality Assurance, National Cancer Center Hospital East, Kashiwa, Japan
| | - A Motegi
- Department of Radiation Oncology, National Cancer Center Hospital East, Chiba, Japan
| | - K Kano
- Department of Radiology, National Cancer Center Hospital East, Kashiwa, Japan
| | - N Yamashita
- Department of Radiology, National Cancer Center Hospital East, Kashiwa, Japan
| | - K Hirotaki
- Department of Radiology, National Cancer Center Hospital East, Kashiwa, Japan
| | - H Oyoshi
- Department of Radiology, National Cancer Center Hospital East, Kashiwa, Japan
| | - T Ariji
- Department of Radiology, National Cancer Center Hospital East, Kashiwa, Japan
| | - H Tachibana
- Section of Radiation Safety and Quality Assurance, National Cancer Center Hospital East, Kashiwa, Japan
| | - T Akimoto
- Department of Radiation Oncology, National Cancer Center Hospital East, Chiba, Japan
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MERTENS N, Kano K, Merz L, El Desoky S, A Kari J, Gyung Kang H, Cingöz S, Shril S, Aoki J, Hildebrandt F. WCN23-0159 ENPP6 IS A POTENTIAL NOVEL CANDIDATE GENE FOR MONOGENIC CONGENITAL ANOMALIES OF THE KIDNEYS AND URINARY TRACT. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.02.545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023] Open
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Negi S, Hamori M, Kubo Y, Kitagishi H, Kano K. Monolayer formation and chiral recognition of binaphthyl amphiphiles at the air–water interface. BCSJ 2022. [DOI: 10.1246/bcsj.20220286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shigeru Negi
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto 610-0395, Japan
| | - Mami Hamori
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto 610-0395, Japan
| | - Yoshiyasu Kubo
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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Negi S, Hamori M, Kitagishi H, Kano K. Highly Ordered Monolayers of an Optically Active Amphiphilic Pyrene Derivative at the Air–Water Interface. BCSJ 2022. [DOI: 10.1246/bcsj.20220233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shigeru Negi
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto 610-0395, Japan
| | - Mami Hamori
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto 610-0395, Japan
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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Kano K, Yatsuda H, Kondoh J. Evaluation of Shear Horizontal Surface Acoustic Wave Biosensors Using "Layer Parameter" Obtained from Sensor Responses during Immunoreaction. Sensors (Basel) 2021; 21:4924. [PMID: 34300665 PMCID: PMC8309872 DOI: 10.3390/s21144924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 07/01/2021] [Accepted: 07/14/2021] [Indexed: 01/24/2023]
Abstract
Shear horizontal surface acoustic wave (SH-SAW) biosensors measure the reaction of capture antibodies immobilized on the sensing surface to capture test molecules (antigens) by using the change in SH-SAW propagation characteristics. SH-SAW displacement exists not only on the SH-SAW propagating surface, but also partially penetrates the specimen liquid to a certain depth, which is determined by the liquid properties of the specimen and the operating frequency of the SH-SAW. This phenomenon is called viscosity penetration. In previous studies, the effect of viscosity penetration was not considered in the measurement of SH-SAW biosensors, and the mass or viscosity change caused by the specific binding of capture antibodies to the target antigen was mainly used for the measurement. However, by considering the effect of viscosity penetration, it was found that the antigen-antibody reaction could be measured and the detection characteristics of the biosensor could be improved. Therefore, this study aims to evaluate the detection properties of SH-SAW biosensors in the surface height direction by investigating the relationship between molecular dimensions and SH-SAW propagation characteristics, which are pseudo-changed by varying the diameter of gold nanoparticles. For the evaluation, we introduced a layer parameter defined by the ratio of the SH-SAW amplitude change to the SH-SAW velocity change caused by the antigen-antibody reaction. We found a correlation between the layer parameter and pseudo-varied molecular dimensions. The results suggest that SH-SAW does not only measure the mass and viscosity but can also measure the size of the molecule to be detected. This shows that SH-SAW biosensors can be used for advanced functionality.
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Affiliation(s)
- Koji Kano
- Japan Radio Co., Ltd., 834 Inasatomachi Nagano-shi, Nagono 381-2289, Japan;
- Graduate School of Science and Technology, Shizuoka University, Shizuoka 432-8561, Japan;
| | - Hiromi Yatsuda
- Japan Radio Co., Ltd., 834 Inasatomachi Nagano-shi, Nagono 381-2289, Japan;
| | - Jun Kondoh
- Graduate School of Science and Technology, Shizuoka University, Shizuoka 432-8561, Japan;
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Abstract
Supramolecular porphyrin–cyclodextrin complexes act as biomimetic heme protein models in aqueous solution.
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Affiliation(s)
- Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry
- Faculty of Science and Engineering
- Doshisha University
- Kyoto 610-0321
- Japan
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry
- Faculty of Science and Engineering
- Doshisha University
- Kyoto 610-0321
- Japan
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Kano K, Kawamura K, Miyake T. Effects of preemptive analgesia with intravenous acetaminophen on postoperative pain relief in patients undergoing third molar surgery: a prospective, single-blind, randomized controlled trial. Med Oral Patol Oral Cir Bucal 2021; 26:e64-e70. [PMID: 33037803 PMCID: PMC7806347 DOI: 10.4317/medoral.23983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 09/17/2020] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND The efficacy of preemptive analgesia in managing postoperative pain remains controversial. The aim of this study was to compare the efficacy of intravenous (IV) acetaminophen administered before or immediately after the surgical extraction of an impacted mandibular third molar. MATERIAL AND METHODS This prospective randomized clinical trial included 120 patients. The patients were assigned to one of three groups: the preoperative-treatment group (pre-group), which received 1000 mg of IV acetaminophen 20 min before surgery; the postoperative-treatment group (post-group), which received 1000 mg of IV acetaminophen after surgery; the no-treatment group (control-group), which did not receive any analgesic. Rescue analgesic (60 mg loxoprofen) was issued to each patient, with instructions on self-administration if needed. For the rescue medication usage, the time of first loxoprofen usage and the total amount of loxoprofen consumption were obtained for a 17-hour period after surgery. We measured pain using the visual analogue scale at 1 hour and at 2, 3, 4, 5, and 15 hours after surgery. RESULTS There was no significant difference in pain level among the three groups at any time interval. However, the pre-group demonstrated significantly lower rescue analgesic consumption and longer time until initial administration. CONCLUSIONS Administration of IV acetaminophen before third molar surgery provides more effective pain control than postoperative administration and no treatment.
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Affiliation(s)
- K Kano
- Graduate School of Dentistry, Osaka Dental University Kuzuhahanazono-cho 8-1, Hirakata-shi Osaka 573-1211, Japan
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Hayasaka T, Takehara N, Horiuchi K, Kano K, Tomita Y, Yoshida Y, Maruyama K, Minoshima A, Kawabe J, Hasebe N. Sarcopenia-derived exosomal micro-RNA 16-5p exerts the cardio-repair disturbance via pro-apoptotic mechanism in myocardial infarction of mice. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Sarcopenia is a pathophysiological malfunction induced by skeletal muscle atrophy, and several studies reported an association between sarcopenia-induced cardiac cachexia and poor prognosis in heart disease. Since only a few established animal models are recently available, the underlying mechanism of disturbed cardiac repair accompanied with sarcopenia remains poorly understood.
Purpose
We hypothesized that specific microRNAs in sarcopenia-derived exosomes play crucial roles in disturbed cardiac repair with sarcopenia, and these microRNAs directly exacerbate cardiomyocyte injury following cardiac ischemia and reperfusion.
Methods
We developed a novel sarcopenia-induced cardiac repair disturbance mouse model that is induced by tail suspension (TS) 7 days after a 45-min coronary occlusion of cardiac ischemia and reperfusion (I/R). The reduction of the left ventricular ejection fraction (LVEF) after I/R was compared in mice with TS [I/R-TS(+), n=14] and without [I/R-TS(−), n=12] by echocardiography. To investigate the exosomal mechanism of cardiac repair disturbance, a comprehensive analysis of extracted exosomal microRNAs from mice serum was performed in the 2 groups at day 8. Then, we investigated the impact of the identified candidate microRNA in neonatal rat cardiomyocytes (NRVMs). After 4 days in primary culture, candidate microRNA was transfected into NRVMs under hypoxic culture conditions. TUNEL analysis and quantitative PCR analysis of apoptosis-related genes were performed on the NRVMs.
Results
At day 8 after I/R, the LVEF of I/R-TS(+) was not significantly ameliorated compared to that of I/R-TS(−) (ΔLVEF; 1.59±6.92 vs. 8.04±7.71% p=0.034). Four candidate microRNAs obtained from I/R mice serum were identified in the microRNA array analysis. The re-analysis of these candidate micro-RNAs using all I/R mice demonstrated that the level of mir-16-5p in I/R-TS(+) was raised by approximately nine-fold than that in I/R-TS(−) (9.67±13.35 vs. 0.99±1.41, p<0.05). Next, an in vitro experimental model using a microRNA mimic revealed that apoptosis in NRVMs was greatly enhanced by the transfection of a mir-16-5p mimic in hypoxic culture conditions (mir-16-5p vs. control = 5.77±2.84 vs. 1.72±0.55%, p<0.01). Furthermore, by qRT-PCR analysis, the expression of CASP3 and TRP53 were upregulated in NRVMs treated with a mir-16-5p mimic than in control NRVMs.
Conclusion
Myocardial I/R injury in sarcopenia ended in cardiac repair disturbance accompanying with the enhanced expression of exosomal-mir-16-5p. A pro-apoptotic effect of mir-16-5p may exacerbate myocardial I/R injury and thus can be a novel therapeutic target for cardiac repair disturbance in sarcopenia.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Japan Society for the Promotion of Science
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Affiliation(s)
- T Hayasaka
- Asahikawa Medical University, Asahikawa, Japan
| | - N Takehara
- Asahikawa Medical University, Asahikawa, Japan
| | - K Horiuchi
- Asahikawa Medical University, Asahikawa, Japan
| | - K Kano
- Asahikawa Medical University, Asahikawa, Japan
| | - Y Tomita
- Asahikawa Medical University, Asahikawa, Japan
| | - Y Yoshida
- Asahikawa Medical University, Asahikawa, Japan
| | - K Maruyama
- Asahikawa Medical University, Asahikawa, Japan
| | - A Minoshima
- Asahikawa Medical University, Asahikawa, Japan
| | - J Kawabe
- Asahikawa Medical University, Asahikawa, Japan
| | - N Hasebe
- Asahikawa Medical University, Asahikawa, Japan
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Fujikawa H, Yamada T, Koumori K, Watanabe H, Kano K, Takahashi K, Rino Y, Masuda M, Ogata T, Oshima T. 135P Significance of lymphatic invasion in the indication for additional gastrectomy after endoscopic treatment. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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10
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Yamada T, Hayashi T, Fujikawa H, Kumazu Y, Nagasawa S, Nakazono M, Kano K, Hara K, Watanabe H, Komori K, Shimoda Y, Takahashi K, Ogata T, Oshima T, Yoshikawa T. 1439P Phase II study to evaluate feasibility and safety of oral nutritional supplementation with high density liquid diet after total gastrectomy for patients with gastric cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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11
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Vonesch M, Wytko JA, Kitagishi H, Kano K, Weiss J. Modelling haemoproteins: porphyrins and cyclodextrins as sources of inspiration. Chem Commun (Camb) 2019; 55:14558-14565. [PMID: 31748764 DOI: 10.1039/c9cc07545c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The association of hydrophobic cavities with porphyrin derivatives has been used to mimic haemoprotein structures. The most employed cavity in this field is β-cyclodextrin (β-CD), and scaffolds combining β-CDs and porphyrins are expected to inspire the combination of porphyrins and cucurbiturils in the near future. Aside from providing water solubility to various porphyrinic structures, the β-CD framework can also modulate and control the reactivity of the metal core of the porphyrin. After a general introduction of the challenges faced in the field of haemoprotein models and the binding behavior of β-CDs, this article will discuss covalent and non-covalent association of porphyrins with β-CDs. In each approach, the role of the CD differs according to the relative position of the concave CD host, either directly controlling the binding and transformation of a substrate on the metalloporphyrin or playing a dual role of controlling the water solubility and selecting the axial ligand of the metal core. The discussion will be of interest to the cucurbituril community as well as to the cavitand community, as the information provided should be useful for the design of haemoprotein mimics using cucurbiturils.
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Affiliation(s)
- Maxime Vonesch
- Institut de Chimie de Strasbourg, UMR 7177 CNRS-Université de Strasbourg, 4 rue Blaise Pascal 67000, Strasbourg, France.
| | - Jennifer A Wytko
- Institut de Chimie de Strasbourg, UMR 7177 CNRS-Université de Strasbourg, 4 rue Blaise Pascal 67000, Strasbourg, France.
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan.
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan.
| | - Jean Weiss
- Institut de Chimie de Strasbourg, UMR 7177 CNRS-Université de Strasbourg, 4 rue Blaise Pascal 67000, Strasbourg, France.
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Kano K, Ogata T, Komori K, Watanabe H, Shimoda Y, Kumazu Y, Fujikawa H, Yamada T, Oshima T. Neoadjuvant chemotherapy can eliminate the negative impact of postoperative infectious complications on recurrence in patients with esophageal cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Horiuchi K, Minoshima A, Kabara M, Kano K, Tomita Y, Yoshida Y, Hayasaka T, Takehara N, Hasebe N, Kawabe J. P4144Pericyte-specific deletion of ninjurin1 induces abnormal vasa vasorum formation and persistent inflammation and enhances intimal hyperplasia of injured vasculature. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Atherosclerosis is fundamental pathological condition inducing severe ischemic diseases such as ischemic heart disease and stroke. New concept has been proposed that adventitial abnormalities including enhanced malformation of adventitial microvessel, vasa vasorum are associated with development and vulnerability of atherosclerotic plaque. However, the role of vasa vasorum malformation in vascular remodelling has not been fully clarified. We recently reported that Ninjurin1 (Ninj1) is critical adhesion molecule to associate pericytes (PCs) with endothelial (EC) tubes to form stabilized mature neovessels. The purpose of this study is to examine if formation of adventitial microvessels affects the vascular remodelling of injured vessels using PCs-specific Ninj1 deletion mouse model.
Methods and results
Deletion of Ninj1 gene in NG2-positive PCs was induced by tamoxifen (Tam)-treated NG2-CreER/Ninj1loxp mice (Ninj1KO, n=9). Tam-treated-NG2-CreER (n=4) or Tam-nontreated NG2-CreER/Ninj1loxp (n=5) mice were used as Control (Ct1 and Ct2 respectively). Femoral arteries were injured by insertion of coiled wire. After 4 weeks of surgery, blood vessels were stained by venous injection of FITC-lectin. Isolated femoral arteries were fixed with paraformaldehyde and decolorized with CUBIC reagent. Wire-mediated vessel injury induced intimal hyperplasia, as assessed by intima/media (I/M) ratio and accordingly grew microvessels in adventitia. Intimal hyperplasia in Ninj1KO were significantly enhanced compared to Controls. Although there was no significant difference in total length of adventitial microvessels among three groups, extravasation of FITC-lectin from adventitial microvessels were significantly enhanced in Ninj1KO. The number of infiltrated macrophages in adventitia were increased in Ninj1KO.
Conclusion
Deletion of Ninj1 in PCs contributes to formation of immature microvessels in adventitia of injured vasculature and to adventitial microbleeding, and subsequently enhances intimal hyperplasia. Ninj1 is an attractive target to normalize microvessels for anti-atherosclerotic therapy.
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Affiliation(s)
- K Horiuchi
- Asahikawa Medical University, Department of Medicine, Division of Cardiovascular Regeneration and Innovation, Asahikawa, Japan
| | - A Minoshima
- Asahikawa Medical University, Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa, Japan
| | - M Kabara
- Asahikawa Medical University, Department of Medicine, Division of Cardiovascular Regeneration and Innovation, Asahikawa, Japan
| | - K Kano
- Asahikawa Medical University, Department of Medicine, Division of Cardiovascular Regeneration and Innovation, Asahikawa, Japan
| | - Y Tomita
- Asahikawa Medical University, Department of Radiology, Asahikawa, Japan
| | - Y Yoshida
- Asahikawa Medical University, Department of Vascular Surgery, Asahikawa, Japan
| | - T Hayasaka
- Asahikawa Medical University, Department of Medicine, Division of Cardiovascular Regeneration and Innovation, Asahikawa, Japan
| | - N Takehara
- Asahikawa Medical University, Department of Medicine, Division of Cardiovascular Regeneration and Innovation, Asahikawa, Japan
| | - N Hasebe
- Asahikawa Medical University, Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa, Japan
| | - J Kawabe
- Asahikawa Medical University, Department of Medicine, Division of Cardiovascular Regeneration and Innovation, Asahikawa, Japan
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Kitagishi H, Saito M, Mao Q, Kiriyama A, Negi S, Kano K. Supramolecular Complexation in Biological Media: NMR Study on Inclusion of an Anionic Tetraarylporphyrin into a Per‐O‐Methylated β‐Cyclodextrin Cavity in Serum, Blood, and Urine. Chem Asian J 2019; 14:3320-3328. [DOI: 10.1002/asia.201900983] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/08/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Hiroaki Kitagishi
- Department of Molecular Chemistry and BiochemistryFaculty of Science and EngineeringDoshisha University 1-3 Tatara Miyakodani Kyotanabe Kyoto 610-0321 Japan
| | - Mai Saito
- Department of Molecular Chemistry and BiochemistryFaculty of Science and EngineeringDoshisha University 1-3 Tatara Miyakodani Kyotanabe Kyoto 610-0321 Japan
| | - Qiyue Mao
- Department of Molecular Chemistry and BiochemistryFaculty of Science and EngineeringDoshisha University 1-3 Tatara Miyakodani Kyotanabe Kyoto 610-0321 Japan
| | - Akiko Kiriyama
- Faculty of Pharmaceutical ScienceDoshisha Women's College of Liberal Arts Kyotanabe Kyoto 610-0395 Japan
| | - Shigeru Negi
- Faculty of Pharmaceutical ScienceDoshisha Women's College of Liberal Arts Kyotanabe Kyoto 610-0395 Japan
| | - Koji Kano
- Department of Molecular Chemistry and BiochemistryFaculty of Science and EngineeringDoshisha University 1-3 Tatara Miyakodani Kyotanabe Kyoto 610-0321 Japan
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Takaishi M, Shirai O, Kitazumi Y, Kano K. Electrochemical Study on Quantitative Structure‐activity Relationship (QSAR) Analysis under Steady‐state Conditions. ELECTROANAL 2018. [DOI: 10.1002/elan.201800351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M. Takaishi
- Division of Applied Life Sciences, Graduate School of AgricultureKyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku Kyoto 606-8502 Japan
| | - O. Shirai
- Division of Applied Life Sciences, Graduate School of AgricultureKyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku Kyoto 606-8502 Japan
| | - Y. Kitazumi
- Division of Applied Life Sciences, Graduate School of AgricultureKyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku Kyoto 606-8502 Japan
| | - K. Kano
- Division of Applied Life Sciences, Graduate School of AgricultureKyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku Kyoto 606-8502 Japan
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Affiliation(s)
| | - S. Sato
- (Department of Urology, Niigata University School of Medicine, Niigata, Japan)
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17
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Kitagishi H, Shimoji D, Ohta T, Kamiya R, Kudo Y, Onoda A, Hayashi T, Weiss J, Wytko JA, Kano K. A water-soluble supramolecular complex that mimics the heme/copper hetero-binuclear site of cytochrome c oxidase. Chem Sci 2018; 9:1989-1995. [PMID: 29675246 PMCID: PMC5892347 DOI: 10.1039/c7sc04732k] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 01/12/2018] [Indexed: 01/16/2023] Open
Abstract
The O2 adduct of an aqueous synthetic heme/copper model system built on a porphyrin/cyclodextrin supramolecular complex has been characterized.
In mitochondria, cytochrome c oxidase (CcO) catalyses the reduction of oxygen (O2) to water by using a heme/copper hetero-binuclear active site. Here we report a highly efficient supramolecular approach for the construction of a water-soluble biomimetic model for the active site of CcO. A tridentate copper(ii) complex was fixed onto 5,10,15,20-tetrakis(4-sulfonatophenyl)porphinatoiron(iii) (FeIIITPPS) through supramolecular complexation between FeIIITPPS and a per-O-methylated β-cyclodextrin dimer linked by a (2,2′:6′,2′′-terpyridyl)copper(ii) complex (CuIITerpyCD2). The reduced FeIITPPS/CuITerpyCD2 complex reacted with O2 in an aqueous solution at pH 7 and 25 °C to form a superoxo-type FeIII–O2–/CuI complex in a manner similar to CcO. The pH-dependent autoxidation of the O2 complex suggests that water molecules gathered at the distal Cu site are possibly involved in the FeIII–O2–/CuI superoxo complex in an aqueous solution. Electrochemical analysis using a rotating disk electrode demonstrated the role of the FeTPPS/CuTerpyCD2 hetero-binuclear structure in the catalytic O2 reduction reaction.
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Affiliation(s)
- Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry , Faculty of Science and Engineering , Doshisha University , Kyotanabe , Kyoto 610-0321 , Japan .
| | - Daiki Shimoji
- Department of Molecular Chemistry and Biochemistry , Faculty of Science and Engineering , Doshisha University , Kyotanabe , Kyoto 610-0321 , Japan .
| | - Takehiro Ohta
- Picobiology Institute , Graduate School of Life Science , University of Hyogo , RSC-UH LP Center , Hyogo 679-5148 , Japan
| | - Ryo Kamiya
- Department of Molecular Chemistry and Biochemistry , Faculty of Science and Engineering , Doshisha University , Kyotanabe , Kyoto 610-0321 , Japan .
| | - Yasuhiro Kudo
- Department of Molecular Chemistry and Biochemistry , Faculty of Science and Engineering , Doshisha University , Kyotanabe , Kyoto 610-0321 , Japan .
| | - Akira Onoda
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka , Suita 565-0871 , Japan
| | - Takashi Hayashi
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka , Suita 565-0871 , Japan
| | - Jean Weiss
- Institut de Chimie de Strasbourg , UMR 7177 , CNRS , Université de Strasbourg , 4 Rue Blaise Pascal , 67000 Strasbourg , France
| | - Jennifer A Wytko
- Institut de Chimie de Strasbourg , UMR 7177 , CNRS , Université de Strasbourg , 4 Rue Blaise Pascal , 67000 Strasbourg , France
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry , Faculty of Science and Engineering , Doshisha University , Kyotanabe , Kyoto 610-0321 , Japan .
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Sato T, Aoyama T, Maezawa Y, Kano K, Hayashi T, Yamada T, Oshima T, Rino Y, Ogata T, Cho H, Yoshikawa T, Masuda M. Impact of preoperative sarcopenia on overall survival in gastric cancer surgery. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx660.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Katayama T, Takeguchi S, Kano K, Asanome A, Takahashi K, Saito T, Sawada J, Naoyuki H. Molecular biomarkers of Parkinson disease and neurodegenerative disorders in cerebrospinal fluid. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Sawada J, Takeguchi S, Kano K, Takahashi K, Saito T, Katayama T, Takahashi T, Kaneko K, Nakashima I, Hasebe N. Clinical differences between myelin oligodendrocyte glycoprotein antibody-positive and aquaporin-4 antibody-positive patients with central nervous system lesions. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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Takeguchi S, Saito T, Kano K, Takahashi K, Sawada J, Katayama T, Hasebe N. Left-hemispheric lesion dominantly causes dysarthria in acute cerebral infarction of internal capsule and corona radiata. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Shirai O, Kitazumi Y, Kano K. Electrochemical Interpretation of Propagation of the Change in the Membrane Potential Using the Goldman-Hodgkin-Katz Equation. ELECTROANAL 2017. [DOI: 10.1002/elan.201700368] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- O. Shirai
- Division of Applied Life Sciences, Graduate School of Agriculture; Kyoto University, Sakyo; Kyoto 606-8502 Japan
| | - Y. Kitazumi
- Division of Applied Life Sciences, Graduate School of Agriculture; Kyoto University, Sakyo; Kyoto 606-8502 Japan
| | - K. Kano
- Division of Applied Life Sciences, Graduate School of Agriculture; Kyoto University, Sakyo; Kyoto 606-8502 Japan
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Minegishi S, Yumura A, Miyoshi H, Negi S, Taketani S, Motterlini R, Foresti R, Kano K, Kitagishi H. Detection and Removal of Endogenous Carbon Monoxide by Selective and Cell-Permeable Hemoprotein Model Complexes. J Am Chem Soc 2017; 139:5984-5991. [PMID: 28388069 DOI: 10.1021/jacs.7b02229] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Carbon monoxide (CO) is produced in mammalian cells during heme metabolism and serves as an important signaling messenger. Here we report the bioactive properties of selective CO scavengers, hemoCD1 and its derivative R8-hemoCD1, which have the ability to detect and remove endogenous CO in cells. HemoCD1 is a supramolecular hemoprotein-model complex composed of 5,10,15,20-tetrakis(4-sulfonatophenyl)porphinatoiron(II) and a per-O-methylated β-cyclodextrin dimer having an pyridine linker. We demonstrate that hemoCD1 can be used effectively to quantify endogenous CO in cell lysates by a simple spectrophotometric method. The hemoCD1 assay detected ca. 260 pmol of CO in 106 hepatocytes, which was well-correlated with the amount of intracellular bilirubin, the final breakdown product of heme metabolism. We then covalently attached an octaarginine peptide to a maleimide-appended hemoCD1 to synthesize R8-hemoCD1, a cell-permeable CO scavenger. Indeed, R8-hemoCD1 was taken up by intact cells and captured intracellular CO with high efficiency. Moreover, we revealed that removal of endogenous CO by R8-hemoCD1 in cultured macrophages led to a significant increase (ca. 2.5-fold) in reactive oxygen species production and exacerbation of inflammation after challenge with lipopolysaccharide. Thus, R8-hemoCD1 represents a powerful expedient for exploring specific and still unidentified biological functions of CO in cells.
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Affiliation(s)
- Saika Minegishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University , Kyotanabe, Kyoto 610-0321, Japan
| | - Aki Yumura
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University , Kyotanabe, Kyoto 610-0321, Japan
| | - Hirotsuna Miyoshi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University , Kyotanabe, Kyoto 610-0321, Japan
| | - Shigeru Negi
- Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts , Kyotanabe, Kyoto 610-0395, Japan
| | - Shigeru Taketani
- Department of Microbiology, Kansai Medical University , Hirakata, Osaka 573-1010, Japan
| | - Roberto Motterlini
- Inserm U955 , Team 12, Créteil 94000, France.,Université Paris Est , Faculty of Medicine, Créteil 94000, France
| | - Roberta Foresti
- Inserm U955 , Team 12, Créteil 94000, France.,Université Paris Est , Faculty of Medicine, Créteil 94000, France
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University , Kyotanabe, Kyoto 610-0321, Japan
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University , Kyotanabe, Kyoto 610-0321, Japan
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Kitagishi H, Sugaya Y, Komazawa K, Tamaki M, Kano K. Participation of Hydroxyl Radical in the Formation of Verdoheme-type Compound in the Reaction of a Ferric Porphyrin with Hydrogen Peroxide. CHEM LETT 2017. [DOI: 10.1246/cl.161161] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321
| | - Yosuke Sugaya
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321
| | - Kozue Komazawa
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321
| | - Mariko Tamaki
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321
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Takano Y, Shirai O, Kitazumi Y, Kano K. Proposal of a new mechanism for the directional propagation of the action potential using a mimicking system. Phys Chem Chem Phys 2017; 19:5310-5317. [PMID: 28155939 DOI: 10.1039/c6cp07603c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A nerve conduction model is constructed by using some liquid-membrane cells that mimic the function of the K+ and Na+ channels. By imitating two types of Na+ channels (ligand-gated Na+ channels and voltage-gated Na+ channels), a new mechanism for the directional propagation of the action potential along the axon toward the axon terminal is proposed. When the nerve cell is excited by an external (outer) stimulus, it can be presumed that the ligand-gated channels work as power sources at the synapse to propagate the change in the membrane potential, and then the voltage-gated channels locally assist the propagation at each site of the axon (nodes of Ranvier).
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Affiliation(s)
- Y Takano
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Sakyo, Kyoto 606-8502, Japan.
| | - O Shirai
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Sakyo, Kyoto 606-8502, Japan.
| | - Y Kitazumi
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Sakyo, Kyoto 606-8502, Japan.
| | - K Kano
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Sakyo, Kyoto 606-8502, Japan.
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Liu Z, Yanagisawa K, Griesing S, Iwai M, Kano K, Hotta N, Kajino T, Suzuki M, Takahashi T. TTF-1/NKX2-1 binds to DDB1 and confers replication stress resistance to lung adenocarcinomas. Oncogene 2017; 36:3740-3748. [PMID: 28192407 DOI: 10.1038/onc.2016.524] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 12/17/2016] [Accepted: 12/21/2016] [Indexed: 01/19/2023]
Abstract
TTF-1, also known as NKX2-1, is a transcription factor that has indispensable roles in both lung development and physiology. We and others have reported that TTF-1 frequently exhibits high expression with increased copy number in lung adenocarcinomas, and also has a role as a lineage-survival oncogene through transcriptional activation of crucial target genes including ROR1 and LMO3. In the present study, we employed a global proteomic search for proteins that interact with TTF-1 in order to provide a more comprehensive picture of this still enigmatic lineage-survival oncogene. Our results unexpectedly revealed a function independent of its transcriptional activity, as TTF-1 was found to interact with DDB1 and block its binding to CHK1, which in turn attenuated ubiquitylation and subsequent degradation of CHK1. Furthermore, TTF-1 overexpression conferred resistance to cellular conditions under DNA replication stress (RS) and prevented an increase in consequential DNA double-strand breaks, as reflected by attenuated induction of pCHK2 and γH2AX. Our findings suggest that the novel non-transcriptional function of TTF-1 identified in this study may contribute to lung adenocarcinoma development by conferring tolerance to DNA RS, which is known to be inherently elicited by activation of various oncogenes.
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Affiliation(s)
- Z Liu
- Division of Molecular Carcinogenesis, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Yanagisawa
- Division of Molecular Carcinogenesis, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Griesing
- Division of Molecular Carcinogenesis, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Iwai
- Division of Molecular Carcinogenesis, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Kano
- Division of Molecular Carcinogenesis, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Hotta
- Division of Molecular Carcinogenesis, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Kajino
- Division of Molecular Carcinogenesis, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Suzuki
- Division of Molecular Carcinogenesis, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Takahashi
- Division of Molecular Carcinogenesis, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
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27
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Kitagishi H, Kurosawa S, Kano K. Intramolecular OxidativeO-Demethylation of an Oxoferryl Porphyrin Complexed with a Per-O-methylated β-Cyclodextrin Dimer. Chem Asian J 2016; 11:3213-3219. [DOI: 10.1002/asia.201601097] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroaki Kitagishi
- Department of Molecular; Chemistry and Biochemistry; Faculty of Science and Engineering; Doshisha University; 1-3 Tatara Miyakodani Kyotanabe Kyoto 610-0321 Japan
| | - Shun Kurosawa
- Department of Molecular; Chemistry and Biochemistry; Faculty of Science and Engineering; Doshisha University; 1-3 Tatara Miyakodani Kyotanabe Kyoto 610-0321 Japan
| | - Koji Kano
- Department of Molecular; Chemistry and Biochemistry; Faculty of Science and Engineering; Doshisha University; 1-3 Tatara Miyakodani Kyotanabe Kyoto 610-0321 Japan
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28
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Nagura Y, Tsuno NH, Kano K, Inoue A, Aoki J, Hirowatari Y, Kaneko M, Kurano M, Matsuhashi M, Ohkawa R, Tozuka M, Yatomi Y, Okazaki H. Regulation of the lysophosphatidylserine and sphingosine 1-phosphate levels in autologous whole blood by the pre-storage leukocyte reduction. Transfus Med 2016; 26:365-372. [DOI: 10.1111/tme.12326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 05/14/2016] [Accepted: 05/24/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Y. Nagura
- Department of Transfusion Medicine; The University of Tokyo Hospital; Tokyo Japan
- Analytical Laboratory Chemistry, Graduate School of Health Care Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - N. H. Tsuno
- Department of Transfusion Medicine; The University of Tokyo Hospital; Tokyo Japan
| | - K. Kano
- Graduate School of Pharmaceutical Sciences; Tohoku University; Miyagi Japan
| | - A. Inoue
- Graduate School of Pharmaceutical Sciences; Tohoku University; Miyagi Japan
| | - J. Aoki
- Graduate School of Pharmaceutical Sciences; Tohoku University; Miyagi Japan
| | - Y. Hirowatari
- Laboratory Sciences, Department of Health Sciences; Saitama Prefectural University; Saitama Japan
| | - M. Kaneko
- Department of Clinical Laboratory; The University of Tokyo Hospital; Tokyo Japan
| | - M. Kurano
- Department of Clinical Laboratory; The University of Tokyo Hospital; Tokyo Japan
| | - M. Matsuhashi
- Department of Transfusion Medicine; The University of Tokyo Hospital; Tokyo Japan
- Laboratory Sciences, Department of Health Sciences; Saitama Prefectural University; Saitama Japan
| | - R. Ohkawa
- Analytical Laboratory Chemistry, Graduate School of Health Care Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - M. Tozuka
- Analytical Laboratory Chemistry, Graduate School of Health Care Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Y. Yatomi
- Department of Clinical Laboratory; The University of Tokyo Hospital; Tokyo Japan
| | - H. Okazaki
- Department of Transfusion Medicine; The University of Tokyo Hospital; Tokyo Japan
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Ogata T, Nakajima T, Kano K, Maezawa Y, Segami K, Ikeda K, Sato T, Cho H, Yoshikawa T. P-253 Multimodal analgesia combined with epidural anesthesia and intravenous administration of acetaminophen in perioperative management of esophagectomy using modified ERAS protocol. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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30
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Kitagishi H, Minegishi S, Yumura A, Negi S, Taketani S, Amagase Y, Mizukawa Y, Urushidani T, Sugiura Y, Kano K. Feedback Response to Selective Depletion of Endogenous Carbon Monoxide in the Blood. J Am Chem Soc 2016; 138:5417-25. [DOI: 10.1021/jacs.6b02211] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry,
Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Saika Minegishi
- Department of Molecular Chemistry and Biochemistry,
Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Aki Yumura
- Department of Molecular Chemistry and Biochemistry,
Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Shigeru Negi
- Faculty
of Pharmaceutical Sciences, Doshisha Women’s College of Liberal Arts, Kyotanabe,
Kyoto 610-0395, Japan
| | - Shigeru Taketani
- Department of Microbiology, Kansai Medical University, Hirakata, Osaka 573-1010, Japan
| | - Yoko Amagase
- Faculty
of Pharmaceutical Sciences, Doshisha Women’s College of Liberal Arts, Kyotanabe,
Kyoto 610-0395, Japan
| | - Yumiko Mizukawa
- Faculty
of Pharmaceutical Sciences, Doshisha Women’s College of Liberal Arts, Kyotanabe,
Kyoto 610-0395, Japan
| | - Tetsuro Urushidani
- Faculty
of Pharmaceutical Sciences, Doshisha Women’s College of Liberal Arts, Kyotanabe,
Kyoto 610-0395, Japan
| | - Yukio Sugiura
- Faculty
of Pharmaceutical Sciences, Doshisha Women’s College of Liberal Arts, Kyotanabe,
Kyoto 610-0395, Japan
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry,
Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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Affiliation(s)
- Kohei Imabeppu
- Department of Molecular Chemistry and Biochemistry, Doshisha University Kyotanabe, Kyoto 610‐0321, Japan, http://www1.doshisha.ac.jp/~kkano/
| | - Hiroyuki Kuwano
- Department of Molecular Chemistry and Biochemistry, Doshisha University Kyotanabe, Kyoto 610‐0321, Japan, http://www1.doshisha.ac.jp/~kkano/
| | - Eriko Yutani
- Department of Molecular Chemistry and Biochemistry, Doshisha University Kyotanabe, Kyoto 610‐0321, Japan, http://www1.doshisha.ac.jp/~kkano/
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Doshisha University Kyotanabe, Kyoto 610‐0321, Japan, http://www1.doshisha.ac.jp/~kkano/
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Doshisha University Kyotanabe, Kyoto 610‐0321, Japan, http://www1.doshisha.ac.jp/~kkano/
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Negi S, Yoshioka M, Mima H, Mastumoto M, Suzuki M, Yokoyama M, Kano K, Sugiura Y. Efficient cleavage of DNA oligonucleotides by a non-FokI-type zinc finger nuclease containing one His₄-type finger domain derived from the first finger domain of Sp1. Bioorg Med Chem Lett 2015; 25:4074-7. [PMID: 26316464 DOI: 10.1016/j.bmcl.2015.08.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 08/12/2015] [Accepted: 08/14/2015] [Indexed: 12/28/2022]
Abstract
In this study, we sought to improve the hydrolytic activity of a His4-type single finger domain (f2), which was previously derived from the second finger domain (f2') of the Sp1 zinc finger protein (Sp1wt), which has 3 tandem finger domains (f1', f2', and f3'). To this end, 2 His4-type single finger domains were generated by mutating 2 Cys residues participating in Zn(II) coordination with the His residues in the first (f1') and third finger (f3') domains of Sp1wt. Circular dichroism spectroscopy results showed that the first and second His4-type zinc finger domains (f1 and f2) adopted folded ββα structures in the presence of Zn(II), but that the third His4-type zinc finger domain (f3) did not. Non-FokI-type zinc finger nucleases containing 3 or 4 finger domains were also prepared by combining a His4-type zinc finger domain with the Sp1wt scaffold. We studied their DNA-binding abilities and hydrolytic activities against DNA oligonucleotides by performing gel-mobility-shift assays. The results showed that f1 had higher hydrolytic activity for a DNA oligonucleotide with a GC box (5'-GGG GCG GGG-3'), compared with that of f2, although both His4-type single finger domains had similar DNA-binding affinities. The difference in the hydrolytic activity between f1 and f2 was ascribed not only to the zinc coordinate structure, but also to its folding structure and the stability of finger domain.
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Affiliation(s)
- Shigeru Negi
- Faculty of Pharmaceutical Science, Doshisha Women's University, 97-1 Minamihokotachi, Koudo, Kyotanabe, Kyoto 610-0395, Japan.
| | - Michiko Yoshioka
- Faculty of Pharmaceutical Science, Doshisha Women's University, 97-1 Minamihokotachi, Koudo, Kyotanabe, Kyoto 610-0395, Japan
| | - Hiroko Mima
- Faculty of Pharmaceutical Science, Doshisha Women's University, 97-1 Minamihokotachi, Koudo, Kyotanabe, Kyoto 610-0395, Japan
| | - Makoto Mastumoto
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Michiko Suzuki
- Faculty of Pharmaceutical Science, Doshisha Women's University, 97-1 Minamihokotachi, Koudo, Kyotanabe, Kyoto 610-0395, Japan
| | - Mao Yokoyama
- Faculty of Pharmaceutical Science, Doshisha Women's University, 97-1 Minamihokotachi, Koudo, Kyotanabe, Kyoto 610-0395, Japan
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Yukio Sugiura
- Faculty of Pharmaceutical Science, Doshisha Women's University, 97-1 Minamihokotachi, Koudo, Kyotanabe, Kyoto 610-0395, Japan
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Kitagishi H, Kawasaki H, Kano K. Bioconjugation of Serum Albumin to a Maleimide-appended Porphyrin/Cyclodextrin Supramolecular Complex as an Artificial Oxygen Carrier in the Bloodstream. Chem Asian J 2015; 10:1768-75. [DOI: 10.1002/asia.201500451] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry; Faculty of Science and Engineering; Doshisha University; 1-3 Tatara Miyakodani, Kyotanabe Kyoto 610-0321 Japan
| | - Hiroki Kawasaki
- Department of Molecular Chemistry and Biochemistry; Faculty of Science and Engineering; Doshisha University; 1-3 Tatara Miyakodani, Kyotanabe Kyoto 610-0321 Japan
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry; Faculty of Science and Engineering; Doshisha University; 1-3 Tatara Miyakodani, Kyotanabe Kyoto 610-0321 Japan
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Kitagishi H, Chai F, Negi S, Sugiura Y, Kano K. Supramolecular intracellular delivery of an anionic porphyrin by octaarginine-conjugated per-O-methyl-β-cyclodextrin. Chem Commun (Camb) 2015; 51:2421-4. [DOI: 10.1039/c4cc09042j] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A convenient and efficient method for intracellular delivery of a water-soluble anionic porphyrin has been developed by utilizing its supramolecular interaction with per-O-methyl-β-cyclodextrin bearing an octaarginine chain as a cell-penetrating peptide.
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Affiliation(s)
- Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry
- Faculty of Science and Engineering
- Doshisha University
- Kyotanabe
- Japan
| | - Fumihiko Chai
- Department of Molecular Chemistry and Biochemistry
- Faculty of Science and Engineering
- Doshisha University
- Kyotanabe
- Japan
| | - Shigeru Negi
- Faculty of Pharmaceutical Sciences
- Doshisha Women’s College of Liberal Arts
- Kyotanabe
- Japan
| | - Yukio Sugiura
- Faculty of Pharmaceutical Sciences
- Doshisha Women’s College of Liberal Arts
- Kyotanabe
- Japan
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry
- Faculty of Science and Engineering
- Doshisha University
- Kyotanabe
- Japan
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35
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Watanabe K, Suzuki T, Kitagishi H, Kano K. Reaction between a haemoglobin model compound and hydrosulphide in aqueous solution. Chem Commun (Camb) 2015; 51:4059-61. [DOI: 10.1039/c5cc00057b] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The reaction between hydrosulphide and a haemoglobin model compound, composed of a Fe(iii)-porphyrin and a cyclodextrin dimer possessing a pyridine-linker, was studied.
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Affiliation(s)
- Kenji Watanabe
- Graduate School of Pharmaceutical Sciences
- Kyushu University
- Fukuoka 812-8582
- Japan
| | - Toshikane Suzuki
- Department of Molecular Chemistry and Biochemistry
- Faculty of Science and Engineering
- Doshisha University
- Kyotanabe
- Japan
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry
- Faculty of Science and Engineering
- Doshisha University
- Kyotanabe
- Japan
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry
- Faculty of Science and Engineering
- Doshisha University
- Kyotanabe
- Japan
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36
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Kitagishi H, Minami K, Kano K. Intracellular Delivery of Anionic meso-Tetraarylporphyrin–Per-O-methylated β-Cyclodextrin Supramolecular Complexes by an Oligoarginine Carrier Peptide. CHEM LETT 2014. [DOI: 10.1246/cl.140298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University
| | - Keiko Minami
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University
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37
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Affiliation(s)
- Takunori Ueda
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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38
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Ueda T, Kumeda S, Kitagishi H, Kano K. Intramolecular Oxidative O-Demethylation in a Per-O-methylated β-Cyclodextrin–Iron Porphyrin Inclusion Complex in Aqueous Solution. CHEM LETT 2013. [DOI: 10.1246/cl.130678] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Takunori Ueda
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University
| | - Saki Kumeda
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University
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39
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Watanabe K, Kitagishi H, Kano K. Supramolecular Iron Porphyrin/Cyclodextrin Dimer Complex that Mimics the Functions of Hemoglobin and Methemoglobin. Angew Chem Int Ed Engl 2013; 52:6894-7. [DOI: 10.1002/anie.201302470] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 04/22/2013] [Indexed: 11/12/2022]
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40
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Watanabe K, Kitagishi H, Kano K. Supramolecular Iron Porphyrin/Cyclodextrin Dimer Complex that Mimics the Functions of Hemoglobin and Methemoglobin. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302470] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Kitagishi H, Hatada S, Itakura T, Maki Y, Maeda Y, Kano K. Cellular uptake of octaarginine-conjugated tetraarylporphyrin included by per-O-methylated β-cyclodextrin. Org Biomol Chem 2013; 11:3203-11. [PMID: 23584796 DOI: 10.1039/c3ob27248f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This paper describes the synthesis, structural characterization and cellular uptake of a supramolecular 1 : 2 inclusion complex of meso-tetraphenylporphyrin having an octaarginine peptide chain (R8-TPP) and heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin (TMe-β-CD). R8-TPP was synthesized by 2 approaches: (1) on-resin conjugation of the N-terminal of octaarginine with 5-(4-carboxyphenyl)-10,15,20-triphenylporphyrin, followed by cleavage from the resin, and (2) Michael addition reaction between 5-[4-(3-maleimidopropylamido)phenyl]-10,15,20-triphenylporphyrin and cysteine-octaarginine peptide (Cys-Arg8). The R8-TPP obtained from both the approaches formed stable inclusion complexes with TMe-β-CD by which non-substituted phenyl groups at the 10- and 20-positions were included to form trans-type 1 : 2 inclusion complexes. The complexation prevented the self-aggregation of R8-TPP, which resulted in the solubilisation of R8-TPP in aqueous media. A cellular uptake study using HeLa cells showed that R8-TPP complexed with TMe-β-CD in a serum-free medium was efficiently taken up by the cells and uniformly dispersed in the cytosol. In the serum-containing medium, the R8-TPP-TMe-β-CD complex dissociated, and the serum protein bound R8-TPP. The R8-TPP-protein complex was localized in the endosomes of the cells. The cytosol-dispersed R8-TPP showed a higher photo-induced cytotoxicity than its endosome-trapped counterpart.
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Affiliation(s)
- Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Tatara, Kyotanabe, Kyoto 610-0321, Japan.
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Karasugi K, Kitagishi H, Kano K. Elongation of Circulation Time of a Diatomic Molecule Receptor in Bloodstream by Attachment to Small Gold Nanoparticles. CHEM LETT 2013. [DOI: 10.1246/cl.2013.115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Keiichi Karasugi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University
| | - Koji Kano
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University
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Fujii W, Kano K, Sugiura K, Naito K. 333 ESTABLISHMENT OF NOVEL METHOD FOR REPEATED CONSTRUCTION OF ENGINEERED ZINC FINGER NUCLEASE. Reprod Fertil Dev 2013. [DOI: 10.1071/rdv25n1ab333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Zinc finger nucleases (ZFN), which are artificial restriction enzymes consisting of an engineered zinc-finger domain (ZF) and an endonuclease domain, can be used for the induction of site-directed mutation and the efficient generation of gene knockout animals. However, the repeated construction of various ZFN sequences is both expensive and time consuming. In this study, we attempted to establish a novel method for inexpensive and rapid ZFN construction. First, we constructed ZFN against mouse Rosa26 and original mouse Gli3 gene loci using short PCR primer sets (>30 bp), which contained 21 bp of the ZF recognition helix for a specific DNA triplet. We prepared 18 sets of such primers and PCR was performed using one of these primer sets and the partial ZF sequence as a template, which was obtained from the first to second DNA recognition helix of mouse Zif268. The PCR products were joined by overlap-PCR and nested PCR, and then inserted into a vector coding the endonuclease domain of FokI nuclease. By these steps, we successfully synthesised intended ZFN vectors containing 4 to 6 fingers. Next, we evaluated the functions of constructed ZFN. The mRNA of constructed ZFN were transcribed in vitro and injected into the cytoplasm of C57BL/6N zygotes. After 24 h of culture, 2-cell stage embryos were subjected to genomic PCR of the target locus, and the PCR products were directly sequenced. When ZFN mRNA for mouse Rosa26 was injected, 3- to 146-bp deletions were detected in 92.8% of injected embryos. This result was almost the same as previously reported for ZFN, indicating that our novel construction method can synthesise functional ZFN, which work as a site-directed nuclease, and that efficiency was comparable with those constructed by conventional PCR methods using long oligonucleotide sets (60 bp).
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44
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Karasugi K, Kitagishi H, Kano K. Modification of a dioxygen carrier, hemoCD, with PEGylated dendrons for extension of circulation time in the bloodstream. Bioconjug Chem 2012; 23:2365-76. [PMID: 23136812 DOI: 10.1021/bc300303z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A supramolecular diatomic receptor, hemoCD, was modified with PEGylated dendrons to extend its circulation time in the bloodstream. The core component was 4-oxo-4-[[4-(10,15,20-tris(4-sulfonatophenyl)-21H,23H-porphin-5-yl)phenyl]amino]butanoic acid (Por-COOH). The building block of the dendrons was Fmoc-4-amino-4-(2-carboxyethyl)heptanedioic acid (FmocTA), which was condensed with α-amino-ω-methoxy-poly(ethylene glycol) (PEG(5000)-NH(2)) to yield an FmocG1-dendron. After deprotection, the G1-dendron was condensed with Por-COOH to yield G1-Por. A precursor (FmocNA) of an FmocG2-dendron was prepared via a condensation reaction of 4-amino-4-(2-t-butoxycarbonylethyl)heptanedioic acid di-t-butyl ester (TA-E) with FmocTA followed by hydrolysis of the resultant nona-carboxylic acid nona-t-butyl ester. Condensation of FmocNA with PEG(5000)-NH(2) yielded an FmocG2-dendron. After deprotection, the G2-dendron was condensed with Por-COOH to yield G2-Por. The ferrous complexes of G1- and G2-Pors formed stable 1:1 inclusion complexes with Py3CD, a per-O-methylated β-cyclodextrin dimer with a pyridine linker, in aqueous solution yielding supramolecular complexes designated as G1-hemoCD and G2-hemoCD, respectively. Both G1- and G2-hemoCDs bound molecular oxygen, with the O(2) affinities (P(1/2)) of hemoCD, G1-, and G2-hemoCDs at pH 7.4 and 37 °C being 22, 20, and 20 Torr, respectively. The modification of hemoCD with the dendrons did not cause destabilization of the O(2) adducts via autoxidation, as indicated by their half-lives (t(1/2)) of 6.8, 6.1, and 5.5 h for hemoCD, G1-, and G2-hemoCDs, respectively. The blood concentration-time curves of G1- and G2-hemoCDs injected into the bloodstream of rats exhibited two phases, with the half-lives of the fast and slow decays being 0.45 and 5.3 h, respectively, for G1-hemoCD, and 0.20 and 12.8 h, respectively, for G2-hemoCD. The half-lives of hemoCD were 0.02 and 0.50 h, respectively. The circulation time of hemoCD was markedly extended by its modification with the PEGylated dendrons, which was very effective in protecting hemoCD against opsonization for uptake by the reticuloendothelial system.
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Affiliation(s)
- Keiichi Karasugi
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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Toyokawa S, Nishikawa H, Ueji M, Motegi K, Kano K. Structural equation modeling of the relationship of bone mineral density and its risk factors in Japanese women. Environ Health Prev Med 2012; 6:41-6. [PMID: 21432236 DOI: 10.1007/bf02897308] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2000] [Accepted: 01/25/2001] [Indexed: 10/22/2022] Open
Abstract
Several factors have been reported as risk factors for the development of osteoporosis. In this study, we aimed to examine the relationship among lifestyle factors, biologic factors, and bone mineral density (BMD) using structural equation modeling (SEM). The subjects in the present study consisted of 866 postmenopausal Japanese women aged between 40 and 80 years old. In the analysis by the SEM, we employed a multiple basic model. As the structural variables, lifestyle factors and biologic factors were selected.The goodness of fit index (GFI) of the final model was 0.991 and the Akaike's information criteria (AIC) showed the lowest value in the peripheral models. The degree of association between biologic factors and BMD was -0.576 (direct association), 0.012 (indirect association), and -0.564 (total association). With regard to the correlation between lifestyle factors and BMD, the degrees of association were 0.085, -0.084, and 0.001, respectively.This study defined a pilot model for factors influencing BMD. Although is remains necessary to conduct further analyses with more valid measurements and constructs, this model indicated that the correlation between BMD and lifestyle factors was lower than that between BMD and biologic factors.
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Affiliation(s)
- S Toyokawa
- Graduate School of Medicine, University of Tsukuba, Tennoudai 1-1-1, 305-8575, Tsukuha, Ibaraki, Japan
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Arai H, Inui K, Kano K, Nishii T, Kaneko T, Mano H, Sasaki T, Masuda M. Lung cancer associated with an azygos lobe successfully treated with video-assisted thoracoscopic surgery. Asian J Endosc Surg 2012; 5:96-9. [PMID: 22776373 DOI: 10.1111/j.1758-5910.2011.00125.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Primary lung cancer associated with an azygos lobe is extremely rare. Herein, we report the case of a 64-year-old woman with lung adenocarcinoma arising in the right upper lobe with an azygos lobe. The patient underwent a right upper lobectomy and lymph node dissection with video-assisted thoracoscopic surgery. Video-assisted thoracoscopic surgery lobectomy for lung cancer of this variant has yet to be reported. We demonstrate the intraoperative findings and the resected pulmonary lobe. This is the first case of primary lung cancer associated with the azygos lobe treated by lobectomy with video-assisted thoracoscopic surgery.
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Affiliation(s)
- H Arai
- Respiratory Disease Center, Yokohama City University Medical Center, Yokohama, Japan.
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Abstract
Water-soluble porphyrins tend to form self-aggregates under certain conditions. The structure of the self-aggregate (H-type dimer, H-type higher aggregate, or J-aggregate) sensitively depends on the structure of the peripheral substituents at the meso-positions of the porphyrin. Water-soluble porphyrins also form relatively stable π-stacked complexes with various aromatics. Polar effects are important in complexation of anionic porphyrins with anthraquinonesulfonates. The results suggest that the main attractive interaction for formation of π-stacked complexes of water-soluble porphyrins is the σ-π interaction as claimed by Hunter and Sanders. Meanwhile, the aryl groups at the meso-positions of the water-soluble porphyrins are included by per-O-methylated β-cyclodextrin through van der Waals interactions to form extremely stable 1:2 complexes (porphyrin:cyclodextrin). Such a character of the water-soluble porphyrins can be applied to convenient preparation of supramolecular hetero-porphyrin arrays.
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Affiliation(s)
- Koji Kano
- Department of Molecular Science and Technology, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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48
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Kano K, Chimoto S, Tamaki M, Itoh Y, Kitagishi H. Supramolecular dioxygen receptors composed of an anionic water-soluble porphinatoiron(ii) and cyclodextrin dimers. Dalton Trans 2012; 41:453-61. [DOI: 10.1039/c1dt11596k] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Ueda T, Kitagishi H, Kano K. PEGylation of an artificial O2 and CO receptor: synthesis, characterisation and pharmacokinetic study. Org Biomol Chem 2012; 10:4337-47. [DOI: 10.1039/c2ob07044h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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50
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Watanabe K, Kitagishi H, Kano K. Supramolecular ferric porphyrins as cyanide receptors in aqueous solution. ACS Med Chem Lett 2011; 2:943-7. [PMID: 24900285 DOI: 10.1021/ml200231x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Accepted: 10/20/2011] [Indexed: 11/29/2022] Open
Abstract
All fundamental data about binding of the cyanide to a supramolecular complex composed of a per-O-methylated β-cyclodextrin dimer having an imidazole linker (Im3CD) and an anionic ferric porphyrin (Fe((III))TPPS) indicate that the Fe((III))TPPS/Im3CD complex is much better as an cyanide receptor in vivo than hydroxocobalamin, whose cyanide binding ability is lowered by its strong binding to serum proteins in the blood.
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Affiliation(s)
- Kenji Watanabe
- Department of Molecular Chemistry
and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry
and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Koji Kano
- Department of Molecular Chemistry
and Biochemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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