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Orimoto A, Kashiwagi S, Funakoshi A, Shimizu T, Ishii T, Kiyono T, Fukuda T. Transcriptome-wide profiling for melanocytes derived from newborn and adult human epidermis with enhanced proliferation. Cell Biol Int 2024. [PMID: 38961533 DOI: 10.1002/cbin.12214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 06/11/2024] [Accepted: 06/16/2024] [Indexed: 07/05/2024]
Abstract
The senescence-associated protein p16INK4A acts as a limiter element in cell-cycle progression. The loss of p16INK4A function is causally related to cellular immortalization. The increase in p16INK4A levels with advancing age was demonstrated in melanocytes. However, the characteristic difference between young and senescent melanocytes affecting immortalization of melanocytes remains unclear. In this study, we generated 10 different cell lines in total from newborn (NB) and adult (AD) primary normal human epidermal melanocytes (NHEM) using four different methods, transduction of CDK4R24C and cyclin D1 (K4D), K4D with TERT (K4DT), SV40 T-antigen (SV40T), and HPV16 E6 and E7 (E6/E7) and performed whole transcriptome sequencing analysis (RNA-Seq) to elucidate the differences of genome-wide expression profiles among cell lines. The analysis data revealed distinct differences in expression pattern between cell lines from NB and AD although no distinct biological differences were detected in analyses such as comparison of cell morphology, evaluation of cell proliferation, and cell cycle profiles. This study may provide useful in vitro models to benefit the understanding of skin-related diseases.
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Affiliation(s)
- Ai Orimoto
- Graduate School of Science and Engineering, Iwate University, Morioka, Iwate, Japan
| | - Sayo Kashiwagi
- Basic Research Development Division, Rohto Pharmaceutical Co., Ltd., Kyoto, Japan
| | - Ayaka Funakoshi
- Basic Research Development Division, Rohto Pharmaceutical Co., Ltd., Kyoto, Japan
| | - Takashi Shimizu
- Basic Research Development Division, Rohto Pharmaceutical Co., Ltd., Kyoto, Japan
| | - Tsuyoshi Ishii
- Basic Research Development Division, Rohto Pharmaceutical Co., Ltd., Kyoto, Japan
| | - Tohru Kiyono
- Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Chiba, Japan
| | - Tomokazu Fukuda
- Graduate School of Science and Engineering, Iwate University, Morioka, Iwate, Japan
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2
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Yasumura Y, Teshima T, Nagashima T, Michishita M, Takano T, Taira Y, Suzuki R, Matsumoto H. Immortalized Canine Adipose-Derived Mesenchymal Stem Cells Maintain the Immunomodulatory Capacity of the Original Primary Cells. Int J Mol Sci 2023; 24:17484. [PMID: 38139314 PMCID: PMC10743981 DOI: 10.3390/ijms242417484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are a promising cell source for stem cell therapy of intractable diseases in veterinary medicine, but donor-dependent cellular heterogeneity is an issue that influences therapeutic efficacy. Thus, we previously established immortalized cells that maintain the fundamental properties of primary cells, but functional evaluation had not been performed. Therefore, we evaluated the immunomodulatory capacity of the immortalized canine adipose-derived MSCs (cADSCs) in vitro and in vivo to investigate whether they maintain primary cell functions. C57BL/6J mice were treated with dextran sulfate sodium (DSS) to induce colitis, injected intraperitoneally with immortalized or primary cADSCs on day 2 of DSS treatment, and observed for 10 days. Administration of immortalized cADSCs improved body weight loss and the disease activity index (DAI) in DSS-induced colitic mice by shifting peritoneal macrophage polarity from the M1 to M2 phenotype, suppressing T helper (Th) 1/Th17 cell responses and inducing regulatory T (Treg) cells. They also inhibited the proliferation of mouse and canine T cells in vitro. These immunomodulatory effects were comparable with primary cells. These results highlight the feasibility of our immortalized cADSCs as a cell source for stem cell therapy with stable therapeutic efficacy because they maintain the immunomodulatory capacity of primary cells.
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Affiliation(s)
- Yuyo Yasumura
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan; (Y.Y.); (Y.T.); (R.S.); (H.M.)
| | - Takahiro Teshima
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan; (Y.Y.); (Y.T.); (R.S.); (H.M.)
- Research Center for Animal Life Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Tomokazu Nagashima
- Laboratory of Veterinary Pathology, Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan; (T.N.); (M.M.)
| | - Masaki Michishita
- Laboratory of Veterinary Pathology, Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan; (T.N.); (M.M.)
| | - Takashi Takano
- Laboratory of Veterinary Public Health, Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan;
| | - Yoshiaki Taira
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan; (Y.Y.); (Y.T.); (R.S.); (H.M.)
| | - Ryohei Suzuki
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan; (Y.Y.); (Y.T.); (R.S.); (H.M.)
| | - Hirotaka Matsumoto
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan; (Y.Y.); (Y.T.); (R.S.); (H.M.)
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3
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Shekari F, Abyadeh M, Meyfour A, Mirzaei M, Chitranshi N, Gupta V, Graham SL, Salekdeh GH. Extracellular Vesicles as reconfigurable therapeutics for eye diseases: Promises and hurdles. Prog Neurobiol 2023; 225:102437. [PMID: 36931589 DOI: 10.1016/j.pneurobio.2023.102437] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
A large number of people worldwide suffer from visual impairment. However, most available therapies rely on impeding the development of a particular eye disorder. Therefore, there is an increasing demand for effective alternative treatments, specifically regenerative therapies. Extracellular vesicles, including exosomes, ectosomes, or microvesicles, are released by cells and play a potential role in regeneration. Following an introduction to EV biogenesis and isolation methods, this integrative review provides an overview of our current knowledge about EVs as a communication paradigm in the eye. Then, we focused on the therapeutic applications of EVs derived from conditioned medium, biological fluid, or tissue and highlighted some recent developments in strategies to boost the innate therapeutic potential of EVs by loading various kinds of drugs or being engineered at the level of producing cells or EVs. Challenges faced in the development of safe and effective translation of EV-based therapy into clinical settings for eye diseases are also discussed to pave the road toward reaching feasible regenerative therapies required for eye-related complications.
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Affiliation(s)
- Faezeh Shekari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Advanced Therapy Medicinal Product Technology Development Center (ATMP-TDC), Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
| | | | - Anna Meyfour
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Mirzaei
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, North Ryde, Sydney, NSW, Australia
| | - Nitin Chitranshi
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, North Ryde, Sydney, NSW, Australia
| | - Vivek Gupta
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, North Ryde, Sydney, NSW, Australia
| | - Stuart L Graham
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, North Ryde, Sydney, NSW, Australia
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4
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Munirah I, Ozaki T, Sekine A, Morimoto M, Sugawara M, Takada H, Sugano E, Tomita H, Kiyono T, Fukuda T. Immortalization of cells derived from domestic dogs through expressing mutant cyclin-dependent kinase 4, cyclin D1, and telomerase reverse transcriptase. Cytotechnology 2022; 74:181-192. [PMID: 35185293 PMCID: PMC8817002 DOI: 10.1007/s10616-021-00504-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 10/14/2021] [Indexed: 02/03/2023] Open
Abstract
Dog is the first animal that was established as a close partner of human beings. Based on the vast genetic diversity and breeding, dogs exhibit unique genetic evolution and diversity from Chihuahua to St. Bernard. The safety tests of the pharmacological products also included domestic dogs as the test subjects. Although the safety confirmation test of chemicals for human use is important, the welfare of experimental animals requires special consideration. In this study, we cultured domestic dog-derived primary fibroblasts isolated from their muscle tissues. Furthermore, we successfully immortalized them through lentivirus-mediated gene transfer of mutant cyclin-dependent kinase 4 (CDK4), cyclin D1, and telomere reverse transcriptase (TERT). We further demonstrated that the established immortalized domestic dog-derived fibroblasts retained the characteristics of the original parental cells. These cells might act a suitable in vivo model system to replace the implication of animals for evaluating the potential toxicity of pharmacological chemicals. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10616-021-00504-0.
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Affiliation(s)
- Izzah Munirah
- Graduate School of Science and Engineering, Iwate University, 4-3-5, Ueda, Morioka, Iwate 020-8551 Japan
| | - Taku Ozaki
- Graduate School of Science and Engineering, Iwate University, 4-3-5, Ueda, Morioka, Iwate 020-8551 Japan
| | - Aya Sekine
- Graduate School of Science and Engineering, Iwate University, 4-3-5, Ueda, Morioka, Iwate 020-8551 Japan
| | - Motoko Morimoto
- School of Food Industrial Sciences, Miyagi University, 2-2-1 Hatatate, Taihaku-Ku, Sendai, Miyagi 982-0215 Japan
| | - Mayu Sugawara
- Graduate School of Science and Engineering, Iwate University, 4-3-5, Ueda, Morioka, Iwate 020-8551 Japan
| | - Haruka Takada
- Graduate School of Science and Engineering, Iwate University, 4-3-5, Ueda, Morioka, Iwate 020-8551 Japan
| | - Eriko Sugano
- Graduate School of Science and Engineering, Iwate University, 4-3-5, Ueda, Morioka, Iwate 020-8551 Japan
| | - Hiroshi Tomita
- Graduate School of Science and Engineering, Iwate University, 4-3-5, Ueda, Morioka, Iwate 020-8551 Japan
| | - Tohru Kiyono
- Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, 6-5-1 Kashiwanoha, Kashiwa, Chiba 277-8577 Japan
| | - Tomokazu Fukuda
- Graduate School of Science and Engineering, Iwate University, 4-3-5, Ueda, Morioka, Iwate 020-8551 Japan
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5
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Establishment and genetic characterization of cell lines derived from proliferating nasal polyps and sinonasal inverted papillomas. Sci Rep 2021; 11:17100. [PMID: 34429452 PMCID: PMC8384845 DOI: 10.1038/s41598-021-96444-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 08/10/2021] [Indexed: 11/25/2022] Open
Abstract
To better understand the pathogenesis of nasal polyps (NPs) and sinonasal inverted papillomas (SIPs), we aimed to establish cell lines from fresh tissues of NPs and SIPs and characterize them. Primary cell cultures were obtained from two NP tissues (NP2 and NP3) and one SIP tissue (IP4). All the cells were polygonal in shape, expressed cytokeratin 14, and had normal diploid chromosome status. HPV58 DNA was detected in NP3. To obtain immortal primary cells, NP2 and IP4 cells were transduced with a combination of mutant CDK4, cyclinD1 and TERT. These cells were thereafter named NP2/K4DT and IP4/K4DT, respectively. HPV58-positive NP3 cells were transduced with TERT alone, the resulting cells named NP3/T. Phenotypic and genotypic identity of original tissues and derived cells was investigated. All the cell cultures with transgenes were confirmed to be derived from their parental cells and primary tumor tissues by analysis of short tandem repeats (STR) and maintained in vitro growth, genetic profiles and gene expression characteristics of the primary cells. These virtually immortalized cells, as well as the primary cells, have potential as in vitro models for studying the pathogenesis of NPs and SIPs and for preclinical study to develop new therapeutic agents.
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Schumann S, Dietrich E, Kruse C, Grisanti S, Ranjbar M. Establishment of a Robust and Simple Corneal Organ Culture Model to Monitor Wound Healing. J Clin Med 2021; 10:jcm10163486. [PMID: 34441782 PMCID: PMC8397146 DOI: 10.3390/jcm10163486] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/02/2021] [Accepted: 08/05/2021] [Indexed: 12/23/2022] Open
Abstract
The use of in vitro systems to investigate the process of corneal wound healing offers the opportunity to reduce animal pain inflicted during in vivo experimentation. This study aimed to establish an easy-to-handle ex vivo organ culture model with porcine corneas for the evaluation and modulation of epithelial wound healing. Cultured free-floating cornea disks with a punch defect were observed by stereomicroscopic photo documentation. We analysed the effects of different cell culture media and investigated the impact of different wound sizes as well as the role of the limbus. Modulation of the wound healing process was carried out with the cytostatic agent Mitomycin C. The wound area calculation revealed that after three days over 90% of the lesion was healed. As analysed with TUNEL and lactate dehydrogenase assay, the culture conditions were cell protecting and preserved the viability of the corneal tissue. Wound healing rates differ dependent on the culture medium used. Mitomycin C hampered wound healing in a concentration-dependent manner. The porcine cornea ex vivo culture ideally mimics the in vivo situation and allows investigations of cellular behaviour in the course of wound healing. The effect of substances can be studied, as we have documented for a mitosis inhibitor. This model might aid in toxicological studies as well as in the evaluation of drug efficacy and could offer a platform for therapeutic approaches based on regenerative medicine.
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Affiliation(s)
- Sandra Schumann
- Institute for Medical and Marine Biotechnology, University of Luebeck, Moenkhofer Weg 239a, 23562 Luebeck, Germany; or
- Correspondence: ; Tel.: +49-451-38444814
| | - Eva Dietrich
- Fraunhofer Research Institution for Marine Biotechnology and Cell Technology, Moenkhofer Weg 239a, 23562 Luebeck, Germany;
- Department of Ophthalmology, University of Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany; (S.G.); (M.R.)
| | - Charli Kruse
- Institute for Medical and Marine Biotechnology, University of Luebeck, Moenkhofer Weg 239a, 23562 Luebeck, Germany; or
- Fraunhofer Research Institution for Marine Biotechnology and Cell Technology, Moenkhofer Weg 239a, 23562 Luebeck, Germany;
| | - Salvatore Grisanti
- Department of Ophthalmology, University of Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany; (S.G.); (M.R.)
| | - Mahdy Ranjbar
- Department of Ophthalmology, University of Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany; (S.G.); (M.R.)
- Laboratory for Angiogenesis & Ocular Cell Transplantation, University of Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany
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7
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Orimoto A, Takahashi K, Imai M, Kiyono T, Kawaoka Y, Fukuda T. Establishment of human airway epithelial cells with doxycycline-inducible cell growth and fluorescence reporters. Cytotechnology 2021; 73:555-569. [PMID: 34349346 DOI: 10.1007/s10616-021-00477-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/13/2021] [Indexed: 11/29/2022] Open
Abstract
We previously reported the successful establishment of multiple immortalized cell lines that preserved the original nature of the primary cells via co-expression of R24C mutant cyclin-dependent kinase 4 (CDK4R24C), Cyclin D1, and telomerase reverse transcriptase (TERT). However, as these genes are kind of oncogenes, tools to control their expression levels are favorable. In this study, we describe a new polycistronic lentiviral vector expressing proliferation factors, CDK4R24C and Cyclin D1 along with enhanced green fluorescence protein (EGFP) under the control of doxycycline (Dox)-dependent transactivator (rtTA) and tetracycline response element (TRE). By introducing the Dox-inducible lentiviral vector into human airway epithelial cells, we established a novel human airway epithelial cell line harboring polycistronic Dox-inducible CDK4R24C and Cyclin D1, referred to as Tet-on K4D cells. We showed that the cell growth of Tet-on K4D cells could be controlled by Dox. Furthermore, expression of K4D genes and rtTA gene can be independently monitored by fluorescent imaging. Cultured airway epithelial cells are useful as a tool for studying the pathogenesis of lung disorders. Altogether, our established human airway epithelial cells could be used for a variety of studies such as lung pathology and biology underlying the differentiation process to form the complex pseudostratified multicellular layers. Supplementary Information The online version contains supplementary material available at 10.1007/s10616-021-00477-0.
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Affiliation(s)
- Ai Orimoto
- Graduate School of Science and Engineering, Iwate University, Morioka, Iwate Japan
| | - Kohei Takahashi
- Graduate School of Science and Engineering, Iwate University, Morioka, Iwate Japan
| | - Masaki Imai
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Tohru Kiyono
- Project for Prevention of HPV-Related Cancer, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba Japan
| | - Yoshihiro Kawaoka
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Tomokazu Fukuda
- Graduate School of Science and Engineering, Iwate University, Morioka, Iwate Japan
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Furuya K, Wu T, Orimoto A, Sugano E, Tomita H, Kiyono T, Kurose T, Takai Y, Fukuda T. The transcriptome of wild-type and immortalized corneal epithelial cells. Sci Data 2021; 8:126. [PMID: 33963195 PMCID: PMC8105388 DOI: 10.1038/s41597-021-00908-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/25/2021] [Indexed: 12/13/2022] Open
Abstract
Cellular immortalization enables indefinite expansion of cultured cells. However, the process of cell immortalization sometimes changes the original nature of primary cells. In this study, we performed expression profiling of poly A-tailed RNA from primary and immortalized corneal epithelial cells expressing Simian virus 40 large T antigen (SV40) or the combination of mutant cyclin-dependent kinase 4 (CDK4), cyclin D1, and telomere reverse transcriptase (TERT). Furthermore, we studied the expression profile of SV40 cells cultured in medium with or without serum. The profiling of whole expression pattern revealed that immortalized corneal epithelial cells with SV40 showed a distinct expression pattern from wild-type cells regardless of the presence or absence of serum, while corneal epithelial cells with combinatorial expression showed an expression pattern relatively closer to that of wild-type cells. Measurement(s) | Molecular Profiling | Technology Type(s) | RNA sequencing | Sample Characteristic - Organism | Homo sapiens |
Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.14093807
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Affiliation(s)
- Kai Furuya
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan
| | - Tao Wu
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan
| | - Ai Orimoto
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan
| | - Eriko Sugano
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan
| | - Hiroshi Tomita
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan
| | - Tohru Kiyono
- Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan.
| | - Takahiro Kurose
- Rohto Pharmaceutical Co., Ltd., Basic Research Development Division, 6-5-4 Kunimidai, Kizugawa, Kyoto, 619-0216, Japan
| | - Yoshihiro Takai
- Rohto Pharmaceutical Co., Ltd., Basic Research Development Division, 6-5-4 Kunimidai, Kizugawa, Kyoto, 619-0216, Japan.
| | - Tomokazu Fukuda
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551, Japan.
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9
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Fukuda T, Furuya K, Takahashi K, Orimoto A, Sugano E, Tomita H, Kashiwagi S, Kiyono T, Ishii T. Combinatorial expression of cell cycle regulators is more suitable for immortalization than oncogenic methods in dermal papilla cells. iScience 2021; 24:101929. [PMID: 33437932 PMCID: PMC7788094 DOI: 10.1016/j.isci.2020.101929] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 11/05/2020] [Accepted: 12/08/2020] [Indexed: 12/15/2022] Open
Abstract
The immortalized cell is an essential research tool that uses robust growth properties for the functional investigation of gene products. Immortalized mammalian cells have mainly been established using three methods: expression of simian vacuolating virus 40 T antigen (the SV40 method); human papilloma virus-derived oncoprotein E6/E7 (the E6/E7 method); or combinatorial expression of R24C mutant cyclin-dependent kinase 4, cyclin D1, and telomerase reverse transcriptase (the K4DT method). However, it is unclear as to which method is optimal for an in vitro model. Here, we compared the biological characteristics and genome-wide expression profiles of immortalized human dermal papilla cells generated by the SV40, E6/E7, or K4DT method. To our knowledge, this is the first study to comprehensively compare expression profiles to determine the optimal immortalization method for maintaining the original nature of the wild-type cells. These data would be valuable to scientists aiming to establish new immortalized cell lines.
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Affiliation(s)
- Tomokazu Fukuda
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551 Japan
| | - Kai Furuya
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551 Japan
| | - Kouhei Takahashi
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551 Japan
| | - Ai Orimoto
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551 Japan
| | - Eriko Sugano
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551 Japan
| | - Hiroshi Tomita
- Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate, 020-8551 Japan
| | - Sayo Kashiwagi
- Rohto Pharmaceutical Co., Ltd., Basic Research Development Division, 6-5-4 Kunimidai, Kizugawa, Kyoto, 619-0216, Japan
| | - Tohru Kiyono
- Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, 6-5-1 Kashiwanoha, Kashiwa-city, Chiba, 277-8577, Japan
| | - Tsuyoshi Ishii
- Rohto Pharmaceutical Co., Ltd., Basic Research Development Division, 6-5-4 Kunimidai, Kizugawa, Kyoto, 619-0216, Japan
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10
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Mora-Pereira M, Abarca EM, Duran S, Ravis W, McMullen RJ, Fischer BM, Lee YHP, Wooldridge AA. Sustained-release voriconazole-thermogel for subconjunctival injection in horses: ocular toxicity and in-vivo studies. BMC Vet Res 2020; 16:115. [PMID: 32295599 PMCID: PMC7160932 DOI: 10.1186/s12917-020-02331-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 04/05/2020] [Indexed: 12/13/2022] Open
Abstract
Background Keratomycosis is a relatively common, sight threatening condition in horses, where treatment is often prolonged and costly. Subconjunctival (SCo) injections offer less resistance to drug diffusion than the topical route, resulting in better penetration to the ocular anterior segment. Voriconazole, a second generation triazole antifungal, is effective against common fungal organisms causing keratomycosis. If combined with a thermogel biomaterial, voriconazole can be easily injected in the SCo space to provide sustained drug release. The purpose of this study was to evaluate the drug concentrations in the anterior segment and clinical effects after SCo injections of voriconazole-containing thermogel: poly (DL-lactide-co-glycolide-b-ethylene glycol-b-DL-lactide-co-glycolide) (PLGA-PEG-PLGA) in healthy equine eyes. Results Voriconazole aqueous humor (AH) and tear concentrations were compared between 6 horses, receiving 1% voriconazole applied topically (0.2 mL, q4h) (Vori-Top) or 1.7% voriconazole-thermogel (0.3 mL) injected SCo (Vori-Gel). For the Vori-Gel group, voriconazole concentrations were measured in AH and tears at day 2 and then weekly for 23 days, and at day 2 only for the Vori-Top group. Ocular inflammation was assessed weekly (Vori-Gel) using the modified Hackett-McDonald scoring system. Ocular tissue concentrations of voriconazole following SCo 1.7% voriconazole-thermogel (0.3 mL) injections were evaluated post euthanasia in 6 additional horses at 3 different time points. Three horses received bilateral injections at 2 h (n = 3, right eye (OD)) and 48 h (n = 3, left eye (OS)) prior to euthanasia, and 3 horses were injected unilaterally (OS), 7 days prior to euthanasia. Voriconazole-thermogel was easily injected and well tolerated in all cases, with no major adverse effects. On day 2, drug concentrations in tears were higher in the Vori-Top, but not statistically different from Vori-Gel groups. For the Vori-Gel group, voriconazole was non-quantifiable in the AH at any time point. Total voriconazole concentrations in the cornea were above 0.5 μg/g (the target minimum inhibitory concentration (MIC) for Aspergillus sp.) for up to 48 h; however, concentrations were below this MIC at 7 days post treatment. Conclusions Voriconazole-thermogel was easily and safely administered to horses, and provided 48 h of sustained release of voriconazole into the cornea. This drug delivery system warrants further clinical evaluation.
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Affiliation(s)
- Mariano Mora-Pereira
- J. T. Vaughan Large Animal Teaching Hospital, Auburn University, Auburn, AL, USA
| | - Eva M Abarca
- J. T. Vaughan Large Animal Teaching Hospital, Auburn University, Auburn, AL, USA.
| | - Sue Duran
- J. T. Vaughan Large Animal Teaching Hospital, Auburn University, Auburn, AL, USA
| | - William Ravis
- Department of Drug Discovery and Development, Auburn University, Auburn, AL, USA
| | - Richard J McMullen
- J. T. Vaughan Large Animal Teaching Hospital, Auburn University, Auburn, AL, USA
| | - Britta M Fischer
- J. T. Vaughan Large Animal Teaching Hospital, Auburn University, Auburn, AL, USA
| | | | - Anne A Wooldridge
- J. T. Vaughan Large Animal Teaching Hospital, Auburn University, Auburn, AL, USA
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Orimoto A, Kyakumoto S, Eitsuka T, Nakagawa K, Kiyono T, Fukuda T. Efficient immortalization of human dental pulp stem cells with expression of cell cycle regulators with the intact chromosomal condition. PLoS One 2020; 15:e0229996. [PMID: 32119713 PMCID: PMC7051082 DOI: 10.1371/journal.pone.0229996] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/19/2020] [Indexed: 12/23/2022] Open
Abstract
Clinical studies have recently demonstrated that autologous transplantation of mobilized dental pulp stem cells is a safe and efficacious potential therapy for pulp regeneration. However, some limitations need to be addressed, such as the high cost of the safety and quality control tests for isolated individual dental pulp cell products before transplantation. Therefore, more efficient in vitro culturing of human dental pulp stem cells might be useful for providing low cost and high reliability testing for pulp regeneration therapy. In this study, we established a novel immortalized dental pulp stem cell line by co-expressing a mutant cyclin-dependent kinase 4 (CDK4R24C), Cyclin D1, and telomerase reverse transcriptase (TERT). The established cell line maintained its original diploid chromosomes and stemness characteristics and exhibited an enhanced proliferation rate. In addition, we showed the immortalized human dental pulp stem cells still keeps their osteogenic and adipogenic differentiation abilities under appropriate culture conditions even though the cell proliferation was accelerated. Taken together, our established cell lines could serve as a useful in vitro tool for pulp regeneration therapy, and can contribute to reproducibility and ease of cell handling, thereby saving time and costs associated with safety and quality control tests.
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Affiliation(s)
- Ai Orimoto
- Graduate School of Science and Engineering, Iwate University, Morioka, Iwate, Japan
| | - Seiko Kyakumoto
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Shiwa-gun, Iwate, Japan
| | - Takahiro Eitsuka
- Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Kiyotaka Nakagawa
- Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Tohru Kiyono
- Division of Carcinogenesis and Prevention, National Cancer Center Research Institute, Tokyo, Japan
| | - Tomokazu Fukuda
- Graduate School of Science and Engineering, Iwate University, Morioka, Iwate, Japan.,Soft-Path Engineering Research Center (SPERC), Iwate University, Morioka, Iwate, Japan
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