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So RB, Li G, Brentville V, Daly JM, Dixon JE. Combined biolistic and cell penetrating peptide delivery for the development of scalable intradermal DNA vaccines. J Control Release 2024; 367:209-222. [PMID: 38244841 DOI: 10.1016/j.jconrel.2024.01.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 01/22/2024]
Abstract
Physical-based gene delivery via biolistic methods (such as the Helios gene gun) involve precipitation of nucleic acids onto microparticles and direct transfection through cell membranes of exposed tissue (e.g. skin) by high velocity acceleration. The glycosaminoglycan (GAG)-binding enhanced transduction (GET) system exploits novel fusion peptides consisting of cell-binding, nucleic acid condensing, and cell-penetrating domains, which enable enhanced transfection across multiple cell types. In this study, we combined chemical (GET) and physical (gene gun) DNA delivery systems, and hypothesized the combination would generate enhanced distribution and effective uptake in cells not initially transfected by biolistic penetration. Physicochemical characterization, optimization of bullet contents and transfection experiments in vitro in cell monolayers and engineered tissue demonstrated these formulations transfected efficiently, including DC2.4 dendritic cells. We incorporated these formulations into a biolistic format for gene gun by forming fireable dry bullets obtained via lyophilization (freeze drying). This system is simple and with enhanced scalability compared to conventional methods to generate bullets. Flushed GET bullet contents retained their ability to mediate transfection (17-fold greater and 13-fold greater reporter gene expression than standard spermidine bullets in the absence and presence of serum, respectively). Fired GET bullets in vitro (in cells and collagen gels) and in vivo (mice) showed increased reporter gene transfection compared to untreated controls, whilst maintaining cell viability in vitro and having no obvious toxicity in vivo. Lastly, a SARS-CoV-2 plasmid DNA vaccine with spike (S) protein-receptor binding domain (S-RBD) was delivered by gene gun using GET bullets. Specific T cell and antibody responses comparable to the conventional system were generated. The non-physical and physical combination of GET‑gold-DNA carriers using gene gun shows potential as an alternative DNA delivery method that is scalable for mass deployable vaccination and intradermal gene delivery.
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Affiliation(s)
- Roizza Beth So
- Regenerative Medicine & Cellular Therapies (RMCT), Biodiscovery Institute (BDI), School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
| | - Gang Li
- Regenerative Medicine & Cellular Therapies (RMCT), Biodiscovery Institute (BDI), School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
| | - Victoria Brentville
- Scancell Ltd, University of Nottingham Biodiscovery Institute, University Park, Nottingham NG7 2RD, UK
| | - Janet M Daly
- One Virology, Wolfson Centre for Global Virus Research, School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Loughborough LE12 5RD, UK
| | - James E Dixon
- Regenerative Medicine & Cellular Therapies (RMCT), Biodiscovery Institute (BDI), School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK.
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Deng X, Mai R, Zhang C, Yu D, Ren Y, Li G, Cheng B, Li L, Yu Z, Chen J. Discovery of novel cell-penetrating and tumor-targeting peptide-drug conjugate (PDC) for programmable delivery of paclitaxel and cancer treatment. Eur J Med Chem 2021; 213:113050. [PMID: 33280896 DOI: 10.1016/j.ejmech.2020.113050] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 12/13/2022]
Abstract
To ameliorate the deficiencies (e.g. solubility, membrane permeability and non-selective cytotoxicity) of paclitaxel (PTX), we synthesized a "smart" PDC (peptide-drug conjugate), by linking PTX with a multifunctional peptide consisting of a tumor targeting peptide (TTP) and a cell penetrating peptide (CPP), to construct the TTP-CPP-PTX conjugate, LTP-1. LTP-1 could intelligently deliver PTX into LHRH receptor-overexpressed MCF-7 cells, showing 2 times higher cellular uptake than PTX, and enhanced cytotoxicity with IC50 of 3.8 nM (vs 6.6 nM for PTX). LTP-1 exhibited less cytotoxicity to normal cells and the ability to overcome PTX-resistance. Furthermore, LTP-1 had higher in vivo antitumor efficacy than PTX (TGI of 83.4% and 65.7% for LTP-1 and PTX, respectively, at 12 mmol/kg) without apparent toxicities. In summary, we proposed and testified the concept of constructing a novel PDC molecule, which can potentially conquer the drawbacks of PTX. LTP-1 represents a new class of antitumor PDC deserving further investigation.
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Narenji H, Teymournejad O, Rezaee MA, Taghizadeh S, Mehramuz B, Aghazadeh M, Asgharzadeh M, Madhi M, Gholizadeh P, Ganbarov K, Yousefi M, Pakravan A, Dal T, Ahmadi R, Samadi Kafil H. Antisense peptide nucleic acids againstftsZ andefaA genes inhibit growth and biofilm formation of Enterococcusfaecalis. Microb Pathog 2019; 139:103907. [PMID: 31811888 DOI: 10.1016/j.micpath.2019.103907] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/23/2019] [Accepted: 12/02/2019] [Indexed: 12/25/2022]
Abstract
Enterococcus faecalis is one of the important causes of nosocomial infections. Nowadays, increasing prevalence of antibiotic-resistant bacteria and slow progress in recognizing new antimicrobial agents has limited the efficiency of conventional antibiotics, which cause to find novel strategies to overcome bacteria. Therefore, in this study, we aimed to assess the role of efaA gene in the biofilm formation and the role of ftsZ gene in the controlling of bacterial growth by the anti-sense PNAs(Peptide Nucleic Acid).E. faecalis ATCC® 29212™was used for the study of PNAs designed to targeting the start codon section of the ftsZ andefaA genes. PNA attachment to RNA was confirmed by blotting. Electroporation technique was used for the intracellular transfer of anti-ftsZ PNAs. The spot-plating method was used to the assessment of alteration in bacterial growth. Biofilm formation assay and real-time PCR were used for detection of biofilm inhibitory effect of cell penetrating peptide (CPP) conjugated to anti-efaA PNAs.ByftsZ PNAs treatment, no growth was seen from the strain in agar by a spot plating method and the inhibition zone of anti-ftsZ PNAs was not seen. PNAs against the efaA gene decreased by 95% the expression of the efaA gene and biofilm formation. In addition, the(3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide) MTT assay showed no toxicity on MCF7 cells for both of anti-ftsZand anti-efaA PNAs.This study used new genetic and molecular tools to inhibit pathogenicity and infection by E. faecalis. In this study, we suggested that efaA gene plays a critical role in the biofilm formation and anti-efaA PNAs could decrease the formation of biofilm, as well as, anti-ftsZ PNAs could eliminate bacterial growth.
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Affiliation(s)
- Hanar Narenji
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Omid Teymournejad
- Department of Veterinary Biosciences, Ohio State University, Columbus, OH, 43210, United States
| | | | - Sepehr Taghizadeh
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahareh Mehramuz
- Immunology Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Aghazadeh
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Asgharzadeh
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoumeh Madhi
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Pourya Gholizadeh
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Mehdi Yousefi
- Immunology Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Asrin Pakravan
- Department of Chemistry, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Tuba Dal
- Department of Clinical Microbiology, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Raman Ahmadi
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Samadi Kafil
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Lee HG, Kim LK, Choi JM. NFAT-Specific Inhibition by dNP2-VIVITAmeliorates Autoimmune Encephalomyelitisby Regulation of Th1 and Th17. Mol Ther Methods Clin Dev 2019; 16:32-41. [PMID: 31737742 PMCID: PMC6849366 DOI: 10.1016/j.omtm.2019.10.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 10/16/2019] [Indexed: 11/26/2022]
Abstract
Nuclear factor of activated T cells (NFATs) is an important transcription factor for T cell activation and proliferation. Recent studies have highlighted the role of NFATs in regulating the differentiation of effector CD4 T helper (Th) subsets including Th1 and Th17 cells. Because controlling the effector T cell function is important for the treatment of autoimmune diseases, regulation of NFAT functions in T cells would be an important strategy to control the pathogenesis of autoimmune diseases. Here, we demonstrated that an NFAT inhibitory peptide, VIVIT conjugated to dNP2 (dNP2-VIVIT), a blood-brain barrier-permeable peptide, ameliorated experimental autoimmune encephalomyelitis (EAE) by inhibiting Th1 and Th17 cells, but not regulatory T (Treg) cells. dNP2-VIVIT negatively regulated spinal cord-infiltrating interleukin-17A (IL-17A) and interferon (IFN)-γ-producing CD4+ T cells without affecting the number of Foxp3+ CD4+ Treg cells, whereas dNP2-VEET or 11R-VIVIT could not significantly inhibit EAE. In comparison with cyclosporin A (CsA), dNP2-VIVIT selectively inhibited Th1 and Th17 differentiation, whereas CsA inhibited the differentiation of all T cell subsets including that of Th2 and Treg cells. Collectively, this study demonstrated the role of dNP2-VIVIT as a novel agent for the treatment of autoimmune diseases such as multiple sclerosis by regulating the functions of Th1 and Th17 cells.
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Affiliation(s)
- Hong-Gyun Lee
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea.,Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Li-Kyung Kim
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea.,Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Je-Min Choi
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea.,Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea.,Research Institute for Convergence of Basic Sciences, Hanyang University, Seoul, Republic of Korea
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Sims LB, Huss MK, Frieboes HB, Steinbach-Rankins JM. Distribution of PLGA-modified nanoparticles in 3D cell culture models of hypo-vascularized tumor tissue. J Nanobiotechnology 2017; 15:67. [PMID: 28982361 PMCID: PMC5629750 DOI: 10.1186/s12951-017-0298-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 09/23/2017] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Advanced stage cancer treatments are often invasive and painful-typically comprised of surgery, chemotherapy, and/or radiation treatment. Low transport efficiency during systemic chemotherapy may require high chemotherapeutic doses to effectively target cancerous tissue, resulting in systemic toxicity. Nanotherapeutic platforms have been proposed as an alternative to more safely and effectively deliver therapeutic agents directly to tumor sites. However, cellular internalization and tumor penetration are often diametrically opposed, with limited access to tumor regions distal from vasculature, due to irregular tissue morphologies. To address these transport challenges, nanoparticles (NPs) are often surface-modified with ligands to enhance transport and longevity after localized or systemic administration. Here, we evaluate stealth polyethylene-glycol (PEG), cell-penetrating (MPG), and CPP-stealth (MPG/PEG) poly(lactic-co-glycolic-acid) (PLGA) NP co-treatment strategies in 3D cell culture representing hypo-vascularized tissue. RESULTS Smaller, more regularly-shaped avascular tissue was generated using the hanging drop (HD) method, while more irregularly-shaped masses were formed with the liquid overlay (LO) technique. To compare NP distribution differences within the same type of tissue as a function of different cancer types, we selected HeLa, cervical epithelial adenocarcinoma cells; CaSki, cervical epidermoid carcinoma cells; and SiHa, grade II cervical squamous cell carcinoma cells. In HD tumors, enhanced distribution relative to unmodified NPs was measured for MPG and PEG NPs in HeLa, and for all modified NPs in SiHa spheroids. In LO tumors, the greatest distribution was observed for MPG and MPG/PEG NPs in HeLa, and for PEG and MPG/PEG NPs in SiHa spheroids. CONCLUSIONS Pre-clinical evaluation of PLGA-modified NP distribution into hypo-vascularized tumor tissue may benefit from considering tissue morphology in addition to cancer type.
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Affiliation(s)
- Lee B Sims
- Department of Bioengineering, University of Louisville, 505 S. Hancock, CTRB 623, Louisville, KY, 40208, USA
| | - Maya K Huss
- Department of Bioengineering, University of Louisville, 505 S. Hancock, CTRB 623, Louisville, KY, 40208, USA
| | - Hermann B Frieboes
- Department of Bioengineering, University of Louisville, 505 S. Hancock, CTRB 623, Louisville, KY, 40208, USA.,James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA.,Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, USA
| | - Jill M Steinbach-Rankins
- Department of Bioengineering, University of Louisville, 505 S. Hancock, CTRB 623, Louisville, KY, 40208, USA. .,Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, USA. .,Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA. .,Center for Predictive Medicine, University of Louisville, Louisville, KY, USA.
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Zhang DD, Zou MJ, Zhang YT, Fu WL, Xu T, Wang JX, Xia WR, Huang ZG, Gan XD, Zhu XM, Xu DG. A novel IL-1RA-PEP fusion protein with enhanced brain penetration ameliorates cerebral ischemia-reperfusion injury by inhibition of oxidative stress and neuroinflammation. Exp Neurol 2017; 297:1-13. [PMID: 28602833 DOI: 10.1016/j.expneurol.2017.06.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [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: 02/10/2017] [Revised: 05/14/2017] [Accepted: 06/07/2017] [Indexed: 12/21/2022]
Abstract
Neuroinflammation and oxidative stress are involved in cerebral ischemia-reperfusion, in which Interleukin 1 (IL-1), as an effective intervention target, is implicated. Interleukin-1 receptor antagonist (IL-1RA) is the natural inhibitor of IL-1, but blood-brain barrier (BBB) limits the brain penetration of intravenously administered IL-1RA, thereby restricting its therapeutic effect against neuroinflammation. In this study, we evaluated the potential effects of anti-inflammation and anti-oxidative stress of a novel protein IL-1RA-PEP, which fused IL-1RA with a cell penetrating peptide (CPP). Studies were carried out in transient middle cerebral artery occlusion (MCAO) in rats and oxygen glucose deprivation/reoxygenation (OGD/R) in primary cortical neurons. In MCAO rat model, IL-1RA-PEP (50mg/kg) injected i.v., penetrated BBB effectively, and alleviated brain infarction, cerebral edema, neurological deficit score and motor performance as well as inhibited the inflammatory cytokines expression. Furthermore, our results firstly showed that IL-1RA-PEP also regulated the oxidases expression, decreased the levels of NO, MDA and ROS. In addition, the inhibitory effects of IL-1RA-PEP on oxidative stress and inflammation were confirmed in rat cortical neurons induced by OGD/R, it reduced ROS, IL-6 and TNF-α. Further study showed that the effects of IL-1RA-PEP were closely associated with the NF-κB and p38 pathways which were proved respectively by their inhibitors JSH-23 and SB203580. Our results indicated that IL-1RA-PEP could effectively penetrate the brain of MCAO rats, alleviated the cerebral ischemia reperfusion injury by inhibiting neuroinflammation and oxidative stress, showing a great clinical potential for stroke.
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Affiliation(s)
- Dong-Dong Zhang
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China; Anhui Medical University, 81 Meishan Road, Hefei 230032, PR China
| | - Min-Ji Zou
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Ya-Tao Zhang
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Wen-Liang Fu
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Tao Xu
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Jia-Xi Wang
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Wen-Rong Xia
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Zhi-Guang Huang
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Xiang-Dong Gan
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Xiao-Ming Zhu
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China
| | - Dong-Gang Xu
- Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing 100850, PR China; Anhui Medical University, 81 Meishan Road, Hefei 230032, PR China.
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Negi S, Terada Y, Suzuyama M, Matsumoto H, Honbo A, Amagase Y, Mizukawa Y, Kiriyama A, Iga K, Urushidaini T, Sugiura Y. Intrinsic cell permeability of the GAGA zinc finger protein into HeLa cells. Biochem Biophys Res Commun 2015; 464:1034-1039. [PMID: 26187668 DOI: 10.1016/j.bbrc.2015.07.060] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 07/11/2015] [Indexed: 11/30/2022]
Abstract
We examined the intrinsic cell permeability of a GAGA zinc finger obtained from the Drosophila melanogaster transcription factor and analyzed its mechanism of cellular uptake using confocal microscopy and flow cytometry. HeLa cells were treated with the Cy5-labeld GAGA peptides (containing a fluorescent chromophore) to detect fluorescence signals from the fluorescent labeling peptides by confocal microscopy. The results clearly indicated that GAGA peptides possess intrinsic cell permeability for HeLa cells. Based on the results of the flow cytometry analysis and the theoretical net positive charge of the GAGA peptides, the efficiency of cellular uptake of the GAGA peptides was predicted to depend on the net positive charge of the GAGA peptide as well as the cationic component ratio of Arg residues to Lys residues.
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Affiliation(s)
- Shigeru Negi
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan.
| | - Yuka Terada
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Misato Suzuyama
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Haruka Matsumoto
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Akino Honbo
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Yoko Amagase
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Yumiko Mizukawa
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Akiko Kiriyama
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Katsumi Iga
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Tetsuro Urushidaini
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Yukio Sugiura
- Faculty of Pharmaceutical Science, Doshisha Women's University, Koudo, Kyotanabe, Kyoto, 610-0395, Japan
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