1
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Pellegrini S, Zamarian V, Sordi V. Strategies to Improve the Safety of iPSC-Derived β Cells for β Cell Replacement in Diabetes. Transpl Int 2022; 35:10575. [PMID: 36090777 PMCID: PMC9448870 DOI: 10.3389/ti.2022.10575] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022]
Abstract
Allogeneic islet transplantation allows for the re-establishment of glycemic control with the possibility of insulin independence, but is severely limited by the scarcity of organ donors. However, a new source of insulin-producing cells could enable the widespread use of cell therapy for diabetes treatment. Recent breakthroughs in stem cell biology, particularly pluripotent stem cell (PSC) techniques, have highlighted the therapeutic potential of stem cells in regenerative medicine. An understanding of the stages that regulate β cell development has led to the establishment of protocols for PSC differentiation into β cells, and PSC-derived β cells are appearing in the first pioneering clinical trials. However, the safety of the final product prior to implantation remains crucial. Although PSC differentiate into functional β cells in vitro, not all cells complete differentiation, and a fraction remain undifferentiated and at risk of teratoma formation upon transplantation. A single case of stem cell-derived tumors may set the field back years. Thus, this review discusses four approaches to increase the safety of PSC-derived β cells: reprogramming of somatic cells into induced PSC, selection of pure differentiated pancreatic cells, depletion of contaminant PSC in the final cell product, and control or destruction of tumorigenic cells with engineered suicide genes.
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2
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Xiao Y, Chen Y, Shao C, Wang Y, Hu S, Lei W. Strategies to improve the therapeutic effect of pluripotent stem cell-derived cardiomyocytes on myocardial infarction. Front Bioeng Biotechnol 2022; 10:973496. [PMID: 35992358 PMCID: PMC9388750 DOI: 10.3389/fbioe.2022.973496] [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: 06/20/2022] [Accepted: 07/11/2022] [Indexed: 11/20/2022] Open
Abstract
Myocardial infarction (MI) is a common cardiovascular disease caused by permanent loss of cardiomyocytes and the formation of scar tissue due to myocardial ischemia. Mammalian cardiomyocytes lose their ability to proliferate almost completely in adulthood and are unable to repair the damage caused by MI. Therefore, transplantation of exogenous cells into the injured area for treatment becomes a promising strategy. Pluripotent stem cells (PSCs) have the ability to proliferate and differentiate into various cellular populations indefinitely, and pluripotent stem cell-derived cardiomyocytes (PSC-CMs) transplanted into areas of injury can compensate for part of the injuries and are considered to be one of the most promising sources for cell replacement therapy. However, the low transplantation rate and survival rate of currently transplanted PSC-CMs limit their ability to treat MI. This article focuses on the strategies of current research for improving the therapeutic efficacy of PSC-CMs, aiming to provide some inspiration and ideas for subsequent researchers to further enhance the transplantation rate and survival rate of PSC-CMs and ultimately improve cardiac function.
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Affiliation(s)
- Yang Xiao
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Suzhou Medical College, Soochow University, Suzhou, China
| | - Yihuan Chen
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Suzhou Medical College, Soochow University, Suzhou, China
| | - Chunlai Shao
- Department of Cardiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Yaning Wang
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Suzhou Medical College, Soochow University, Suzhou, China
| | - Shijun Hu
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Suzhou Medical College, Soochow University, Suzhou, China
- *Correspondence: Wei Lei, ; Shijun Hu,
| | - Wei Lei
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Suzhou Medical College, Soochow University, Suzhou, China
- *Correspondence: Wei Lei, ; Shijun Hu,
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3
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Miyamoto N, Go YH, Ciaramicoli LM, Kwon HY, Kim HS, Bi X, Yu YH, Kim B, Ha HH, Kang NY, Yun SW, Kim JS, Cha HJ, Chang YT. Target identification of mouse stem cell probe CDy1 as ALDH2 and Abcb1b through live-cell affinity-matrix and ABC CRISPRa library. RSC Chem Biol 2021; 2:1590-1593. [PMID: 34977573 PMCID: PMC8637918 DOI: 10.1039/d1cb00147g] [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: 07/15/2021] [Accepted: 08/20/2021] [Indexed: 11/21/2022] Open
Abstract
CDy1 is a powerful tool to distingusih embryonic stem cells for reprogramming studies and regeneration medicine. However, the stem cell selectivity mechanism of CDy1 has not been fully understood. Here, we report ALDH2 and ABCB1 as the molecular targets of CDy1, elucidated by live-cell affinity-matrix and ABC transporter CRISPRa library screening. The two unique orthogonal mechanisms provide the potential of multi-demensional cellular distinction of specific cell types. CDy1 is a powerful tool to distingusih embryonic stem cells for reprogramming studies and regeneration medicine.![]()
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Affiliation(s)
- Naoki Miyamoto
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS) Pohang 37673 Republic of Korea
| | - Young-Hyun Go
- Department of Life Science, Sogang University 35 Baekbeom-ro Mapo-gu Seoul 04107 South Korea
| | - Larissa Miasiro Ciaramicoli
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) Pohang Gyeongbuk 37673 Republic of Korea
| | - Haw-Young Kwon
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS) Pohang 37673 Republic of Korea
| | - Heon Seok Kim
- Division of Oncology, Department of Medicine, Stanford University School of Medicine Stanford CA USA
| | - Xuezhi Bi
- Bioprocessing Technology Institute, Agency for Science, Technology and Research (ASTAR) Singapore 138668 Singapore
| | - Young Hyun Yu
- College of Pharmacy, Sunchon National University Jungangro 255 Sunchon 57922 South Korea
| | - Beomsue Kim
- Neural Circuit Research Group, Korea Brain Research Institute (KBRI) Daegu 41068 Republic of Korea
| | - Hyung-Ho Ha
- College of Pharmacy, Sunchon National University Jungangro 255 Sunchon 57922 South Korea
| | - Nam-Young Kang
- Department of Convergence IT Engineering, Pohang University of Science and Technology Pohang Gyeongbuk 37673 Korea
| | - Seong-Wook Yun
- Nonclinical Drug Safety, Boehringer Ingelheim Pharma GmbH & Co. KG 88397 Biberach an der Riss Germany
| | - Jin-Soo Kim
- Department of Chemistry, Seoul National University Seoul 08826 Republic of Korea.,Center for Genome Engineering, Institute for Basic Science (IBS) Daejeon 34126 Republic of Korea
| | - Hyuk-Jin Cha
- College of Pharmacy, Seoul National University Seoul 08826 Republic of Korea
| | - Young-Tae Chang
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS) Pohang 37673 Republic of Korea .,Department of Chemistry, Pohang University of Science and Technology (POSTECH) Pohang Gyeongbuk 37673 Republic of Korea
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4
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Salicylic diamines selectively eliminate residual undifferentiated cells from pluripotent stem cell-derived cardiomyocyte preparations. Sci Rep 2021; 11:2391. [PMID: 33504837 PMCID: PMC7841182 DOI: 10.1038/s41598-021-81351-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 12/14/2020] [Indexed: 02/06/2023] Open
Abstract
Clinical translation of pluripotent stem cell (PSC) derivatives is hindered by the tumorigenic risk from residual undifferentiated cells. Here, we identified salicylic diamines as potent agents exhibiting toxicity to murine and human PSCs but not to cardiomyocytes (CMs) derived from them. Half maximal inhibitory concentrations (IC50) of small molecules SM2 and SM6 were, respectively, 9- and 18-fold higher for human than murine PSCs, while the IC50 of SM8 was comparable for both PSC groups. Treatment of murine embryoid bodies in suspension differentiation cultures with the most effective small molecule SM6 significantly reduced PSC and non-PSC contamination and enriched CM populations that would otherwise be eliminated in genetic selection approaches. All tested salicylic diamines exerted their toxicity by inhibiting the oxygen consumption rate (OCR) in PSCs. No or only minimal and reversible effects on OCR, sarcomeric integrity, DNA stability, apoptosis rate, ROS levels or beating frequency were observed in PSC-CMs, although effects on human PSC-CMs seemed to be more deleterious at higher SM-concentrations. Teratoma formation from SM6-treated murine PSC-CMs was abolished or delayed compared to untreated cells. We conclude that salicylic diamines represent promising compounds for PSC removal and enrichment of CMs without the need for other selection strategies.
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5
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Panagopoulos A, Balalas T, Mitrakas A, Vrazas V, Katsani KR, Koumbis AE, Koukourakis MI, Litinas KE, Fylaktakidou KC. 6-Nitro-Quinazolin-4(3H)-one Exhibits Photodynamic Effects and Photodegrades Human Melanoma Cell Lines. A Study on the Photoreactivity of Simple Quinazolin-4(3H)-ones. Photochem Photobiol 2021; 97:826-836. [PMID: 33386640 DOI: 10.1111/php.13376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/29/2020] [Indexed: 12/31/2022]
Abstract
Photochemo and photodynamic therapies are minimally invasive approaches for the treatment of cancers and powerful weapons for competing bacterial resistance to antibiotics. Synthetic and naturally occurring quinazolinones are considered privileged anticancer and antibacterial agents, with several of them to have emerged as commercially available drugs. In the present study, applying a single-step green microwave irradiation mediated protocol we have synthesized eleven quinazolinon-4(3H)-ones, from cheap readily available anthranilic acids, in very good yields and purity. These products were irradiated in the presence of pBR322 plasmid DNA under UVB, UVA and visible light. Four of the compounds proved to be very effective DNA photocleavers, at low concentrations, being time and concentration dependent as well as pH independent. Participation of reactive oxygen species was related to the substitution of quinazolinone derivatives. 6-Nitro-quinazolinone in combination with UVA irradiation was found to be in vitro photodestructive for three cell lines; glioblastoma (U87MG and T98G) and mainly melanoma (A-375). Thus, certain appropriately substituted quinazolinones may serve as new lead photosensitizers for the development of promising biotechnological applications and as novel photochemo and photodynamic therapeutics.
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Affiliation(s)
- Anastasios Panagopoulos
- Laboratory of Organic, Bioorganic and Natural Product Chemistry, Molecular Biology and Genetics Department, Democritus University of Thrace, Dragana, Alexandroupolis, Greece
| | - Thomas Balalas
- Laboratory of Organic Chemistry, Chemistry Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Achilleas Mitrakas
- Department of Radiotherapy/Oncology, Democritus University of Thrace/University General Hospital of Alexandroupolis, Alexandroupolis, Greece
| | - Vassilios Vrazas
- Laboratory of Biochemistry and Molecular Virology, Molecular Biology and Genetics Department, Democritus University of Thrace, Dragana, Alexandroupolis, Greece
| | - Katerina R Katsani
- Laboratory of Biochemistry and Molecular Virology, Molecular Biology and Genetics Department, Democritus University of Thrace, Dragana, Alexandroupolis, Greece
| | - Alexandros E Koumbis
- Laboratory of Organic Chemistry, Chemistry Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Michael I Koukourakis
- Department of Radiotherapy/Oncology, Democritus University of Thrace/University General Hospital of Alexandroupolis, Alexandroupolis, Greece
| | - Konstantinos E Litinas
- Laboratory of Organic Chemistry, Chemistry Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Konstantina C Fylaktakidou
- Laboratory of Organic, Bioorganic and Natural Product Chemistry, Molecular Biology and Genetics Department, Democritus University of Thrace, Dragana, Alexandroupolis, Greece.,Laboratory of Organic Chemistry, Chemistry Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
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6
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Go YH, Kim J, Jeong HC, Kim SM, Kim YJ, Park SJ, Moon SH, Cha HJ. Luteolin Induces Selective Cell Death of Human Pluripotent Stem Cells. Biomedicines 2020; 8:biomedicines8110453. [PMID: 33121085 PMCID: PMC7692041 DOI: 10.3390/biomedicines8110453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/20/2020] [Accepted: 10/25/2020] [Indexed: 11/16/2022] Open
Abstract
Despite recent advances in clinical stem cell therapy applications based on human pluripotent stem cells (hPSCs), potential teratoma formation due to the presence of residual undifferentiated hPSCs remains a serious risk factor that challenges widespread clinical application. To overcome this risk, a variety of approaches have been developed to eliminate the remaining undifferentiated hPSCs via selective cell death induction. Our study seeks to identify natural flavonoids that are more potent than quercetin (QC), to selectively induce hPSC death. Upon screening in-house flavonoids, luteolin (LUT) is found to be more potent than QC to eliminate hPSCs in a p53-dependent manner, but not hPSC-derived smooth muscle cells or perivascular progenitor cells. Particularly, treating human embryonic stem cell (hESC)-derived cardiomyocytes with LUT efficiently eliminates the residual hESCs and only results in marginal effects on cardiomyocyte (CM) functions, as determined by calcium influx. Considering the technical limitations of isolating CMs due to a lack of exclusive surface markers at the end of differentiation, LUT treatment is a promising approach to minimize teratoma formation risk.
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Affiliation(s)
- Young-Hyun Go
- Department of Life Science, Sogang University, Seoul 04107, Korea; (Y.-H.G.); (H.-C.J.)
| | - Jumee Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (J.K.); (S.-M.K.); (Y.-J.K.)
| | - Ho-Chang Jeong
- Department of Life Science, Sogang University, Seoul 04107, Korea; (Y.-H.G.); (H.-C.J.)
| | - Seong-Min Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (J.K.); (S.-M.K.); (Y.-J.K.)
| | - Yun-Jeong Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (J.K.); (S.-M.K.); (Y.-J.K.)
| | - Soon-Jung Park
- Stem Cell Research Institute, T&R Biofab Co., Ltd., Siheung 15073, Korea; (S.-J.P.); (S.-H.M.)
| | - Sung-Hwan Moon
- Stem Cell Research Institute, T&R Biofab Co., Ltd., Siheung 15073, Korea; (S.-J.P.); (S.-H.M.)
| | - Hyuk-Jin Cha
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (J.K.); (S.-M.K.); (Y.-J.K.)
- Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Korea
- Correspondence: ; Tel.: +82-2-880-7825; Fax: +82-2-880-9122
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7
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Go YH, Lim C, Jeong HC, Kwon OS, Chung S, Lee H, Kim W, Suh YG, Son WS, Lee MO, Cha HJ, Kim SH. Structure-Activity Relationship Analysis of YM155 for Inducing Selective Cell Death of Human Pluripotent Stem Cells. Front Chem 2019; 7:298. [PMID: 31157201 PMCID: PMC6532689 DOI: 10.3389/fchem.2019.00298] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/12/2019] [Indexed: 12/16/2022] Open
Abstract
Despite great potential for regenerative medicine, the high tumorigenic potential of human pluripotent stem cells (hPSCs) to form undesirable teratoma is an important technical hurdle preventing safe cell therapy. Various small molecules that induce the complete elimination of undifferentiated hPSCs, referred to as "stemotoxics," have been developed to facilitate tumor-free cell therapy, including the Survivin inhibitor YM155. In the present work, based on the chemical structure of YM155, total 26 analogs were synthesized and tested for stemotoxic activity toward human embryonic stem cells (hESCs) and induced PSCs (iPSCs). We found that a hydrogen bond acceptor in the pyrazine ring of YM155 derivatives is critical for stemotoxic activity, which is completely lost in hESCs lacking SLC35F2, which encodes a solute carrier protein. These results suggest that hydrogen bonding interactions between the nitrogens of the pyrazine ring and the SLC35F2 protein are critical for entry of YM155 into hPSCs, and hence stemotoxic activity.
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Affiliation(s)
- Young-Hyun Go
- Department of Life Sciences, College of Natural Sciences, Sogang University, Seoul, South Korea
| | - Changjin Lim
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Pochen-si, South Korea
| | - Ho-Chang Jeong
- Department of Life Sciences, College of Natural Sciences, Sogang University, Seoul, South Korea
| | - Ok-Seon Kwon
- Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Sungkyun Chung
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Pochen-si, South Korea
| | - Haeseung Lee
- Department of Life Science, Ewha Womans University, Seoul, South Korea
| | - Wankyu Kim
- Department of Life Science, Ewha Womans University, Seoul, South Korea
| | - Young-Ger Suh
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Pochen-si, South Korea
| | - Woo Sung Son
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Pochen-si, South Korea
| | - Mi-Ok Lee
- Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Hyuk-Jin Cha
- College of Pharmacy, Seoul National University, Seoul, South Korea
- Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Seok-Ho Kim
- Department of Pharmacy, College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Pochen-si, South Korea
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8
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Cho SJ, Kim KT, Jeong HC, Park JC, Kwon OS, Song YH, Shin JG, Kang S, Kim W, Shin HD, Lee MO, Moon SH, Cha HJ. Selective Elimination of Culture-Adapted Human Embryonic Stem Cells with BH3 Mimetics. Stem Cell Reports 2018; 11:1244-1256. [PMID: 30293852 PMCID: PMC6235677 DOI: 10.1016/j.stemcr.2018.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 09/04/2018] [Accepted: 09/05/2018] [Indexed: 01/05/2023] Open
Abstract
The selective survival advantage of culture-adapted human embryonic stem cells (hESCs) is a serious safety concern for their clinical application. With a set of hESCs with various passage numbers, we observed that a subpopulation of hESCs at late passage numbers was highly resistant to various cell death stimuli, such as YM155, a survivin inhibitor. Transcriptome analysis from YM155-sensitive (YM155S) and YM155-resistant (YM155R) hESCs demonstrated that BCL2L1 was highly expressed in YM155R hESCs. By matching the gene signature of YM155R hESCs with the Cancer Therapeutics Response Portal dataset, BH3 mimetics were predicted to selectively ablate these cells. Indeed, short-course treatment with a sub-optimal dose of BH3 mimetics induced the spontaneous death of YM155R, but not YM155S hESCs by disrupting the mitochondrial membrane potential. YM155S hESCs remained pluripotent following BH3 mimetics treatment. Therefore, the use of BH3 mimetics is a promising strategy to specifically eliminate hESCs with a selective survival advantage. Culture-adapted hESCs against YM155/genotoxic agents mediated by high BCL-xL expression Selective cell death of culture-adapted hPSCs by BH3 mimetics Pluripotency maintenance of normal hESCs after exposure to BH3 mimetics
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Affiliation(s)
- Seung-Ju Cho
- Department of Life Sciences, Sogang University, Seoul 04107, Republic of Korea
| | - Keun-Tae Kim
- Department of Life Sciences, Sogang University, Seoul 04107, Republic of Korea
| | - Ho-Chang Jeong
- Department of Life Sciences, Sogang University, Seoul 04107, Republic of Korea
| | - Ju-Chan Park
- School of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Ok-Seon Kwon
- School of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Yun-Ho Song
- Department of Medicine, School of Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Joong-Gon Shin
- Department of Life Sciences, Sogang University, Seoul 04107, Republic of Korea
| | - Seungmin Kang
- Ewha Research Center for Systems Biology, Division of Molecular & Life Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Wankyu Kim
- Ewha Research Center for Systems Biology, Division of Molecular & Life Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Hyoung Doo Shin
- Department of Life Sciences, Sogang University, Seoul 04107, Republic of Korea
| | - Mi-Ok Lee
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
| | - Sung-Hwan Moon
- Department of Medicine, School of Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
| | - Hyuk-Jin Cha
- School of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
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9
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Mao D, Chung XKW, Andoh-Noda T, Qin Y, Sato SI, Takemoto Y, Akamatsu W, Okano H, Uesugi M. Chemical decontamination of iPS cell-derived neural cell mixtures. Chem Commun (Camb) 2018; 54:1355-1358. [PMID: 29350722 DOI: 10.1039/c7cc08686e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This report describes the design and evaluation of phosphorylated 7-ethyl-10-hydroxycamptothecin (SN38-P), which selectively eliminates tumor-forming proliferative stem cells, including human induced pluripotent stem cells (hiPSCs) and neural stem cells, from iPSC-derived neural cell mixtures. Results of the present study demonstrate that simple phosphorylation of an anticancer drug can provide a safe, cost-effective, and chemically-defined tool for decontaminating hiPSC-derived neuron.
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Affiliation(s)
- Di Mao
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS) and Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
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10
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Pellegrini S, Piemonti L, Sordi V. Pluripotent stem cell replacement approaches to treat type 1 diabetes. Curr Opin Pharmacol 2018; 43:20-26. [PMID: 30071348 DOI: 10.1016/j.coph.2018.07.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/06/2018] [Accepted: 07/16/2018] [Indexed: 12/13/2022]
Abstract
Stem cells represent a potential candidate for β cell replacement in type 1 diabetes. Pluripotent stem cells are able to differentiate in vitro into functional insulin producing cells, that can restore normoglycemia in diabetic mice. Clinical trials with embryonic stem cell-derived pancreatic progenitors are ongoing. Besides, induced pluripotent stem cells offer the chance of personalized cell therapy. So far, transition to the clinic still needs to face critical issues, such as immunogenicity and safety of stem cell derived β cells. To this purpose, new strategies for immunoprotection, including micro and macro-encapsulation, but also gene editing approaches, are being explored.
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Affiliation(s)
- Silvia Pellegrini
- Diabetes Research Institute - IRCCS San Raffaele Scientific Institute, Italy
| | - Lorenzo Piemonti
- Diabetes Research Institute - IRCCS San Raffaele Scientific Institute, Italy; Vita-Salute San Raffaele University, Italy
| | - Valeria Sordi
- Diabetes Research Institute - IRCCS San Raffaele Scientific Institute, Italy.
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11
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Cho SJ, Kim KT, Kim JS, Kwon OS, Go YH, Kang NY, Heo H, Kim MR, Han DW, Moon SH, Chang YT, Cha HJ. A fluorescent chemical probe CDy9 selectively stains and enables the isolation of live naïve mouse embryonic stem cells. Biomaterials 2018; 180:12-23. [PMID: 30014963 DOI: 10.1016/j.biomaterials.2018.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 07/04/2018] [Indexed: 12/12/2022]
Abstract
Human and mouse embryonic stem cells (ESCs) differ in terms of their pluripotency status, i.e., naïve vs. primed. This affects various biological properties and leads to several technical hurdles for future clinical applications, such as difficulties in chimera formation, single-cell passaging, and gene editing. In terms of generating functional human tissues and organs via mammalian interspecies chimerism, a fluorescent chemical probe that specifically labels naïve ESCs would help to isolate these cells and monitor their conversion. This study demonstrates that the fluorescent chemical probe compound of designation yellow 9 (CDy9) selectively stains naïve, but not primed, mouse ESCs (mESCs). CDy9 entered cells via Slc13a5, a highly expressed membrane transporter in naïve mESCs. Fluorescence-based cell sorting based on CDy9 staining successfully separated naïve mESCs from primed mESCs. Mice generated using CDy9+ cells isolated during the conversion of mouse epiblast stem cells into naïve mESCs exhibited coat color chimerism. Furthermore, CDy9 specifically stained cells in the inner cell mass of mouse embryos. These findings suggest that CDy9 is a useful tool to isolate functional naïve mESCs.
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Affiliation(s)
- Seung-Ju Cho
- Department of Life Sciences Sogang University, 35 Baeckbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
| | - Keun-Tae Kim
- Department of Life Sciences Sogang University, 35 Baeckbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
| | - Jong-Soo Kim
- Department of Medicine, School of Medicine Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Ok-Seon Kwon
- College of Pharmacy, Department of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Young-Hyun Go
- Department of Life Sciences Sogang University, 35 Baeckbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
| | - Nam-Young Kang
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 11 Biopolis Way, Singapore 138667, Singapore
| | - Haejeong Heo
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Mi-Rang Kim
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Dong Wook Han
- Department of Bioscience and Biotechnology, Bio-Organ Research Center, Konkuk University, Seoul, South Korea
| | - Sung-Hwan Moon
- Department of Medicine, School of Medicine Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Young-Tae Chang
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea; Center for Self-assembly and Complexity, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea.
| | - Hyuk-Jin Cha
- College of Pharmacy, Department of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
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12
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Xie X, Mao C, Liu X, Tan L, Cui Z, Yang X, Zhu S, Li Z, Yuan X, Zheng Y, Yeung KWK, Chu PK, Wu S. Tuning the Bandgap of Photo-Sensitive Polydopamine/Ag 3PO 4/Graphene Oxide Coating for Rapid, Noninvasive Disinfection of Implants. ACS CENTRAL SCIENCE 2018; 4:724-738. [PMID: 29974068 PMCID: PMC6026779 DOI: 10.1021/acscentsci.8b00177] [Citation(s) in RCA: 153] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Indexed: 05/20/2023]
Abstract
Bacterial infection and associated complications are threats to human health especially when biofilms form on biomedical devices and artificial implants. Herein, a hybrid polydopamine (PDA)/Ag3PO4/graphene oxide (GO) coating is designed and constructed to achieve rapid bacteria killing and eliminate biofilms in situ. By varying the amount of GO in the hybrid coating, the bandgap can be tuned from 2.52 to 2.0 eV so that irradiation with 660 nm visible light produces bacteria-killing effects synergistically in concert with reactive oxygen species (ROS). GO regulates the release rate of Ag+ to minimize the cytotoxicity while maintaining high antimicrobial activity, and a smaller particle size enhances the yield of ROS. After irradiation with 660 nm visible light for 15 min, the antimicrobial rates of the PDA/Ag3PO4/GO hybrid coating against Escherichia coli and Staphylococcus aureus are 99.53% and 99.66%, respectively. In addition, this hybrid coating can maintain a repeatable and sustained antibacterial efficacy. The released Ag+ and photocatalytic Ag3PO4 produce synergistic antimicrobial effects in which the ROS increases the permeability of the bacterial membranes to increase the probability of Ag+ to enter the cells to kill them together with ROS synergistically.
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Affiliation(s)
- Xianzhou Xie
- School
of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
- Hubei
Collaborative Innovation Center for Advanced Organic Chemical Materials,
Ministry-of-Education Key Laboratory for the Green Preparation and
Application of Functional Materials, Hubei Key Laboratory of Polymer
Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
| | - Congyang Mao
- School
of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
- Hubei
Collaborative Innovation Center for Advanced Organic Chemical Materials,
Ministry-of-Education Key Laboratory for the Green Preparation and
Application of Functional Materials, Hubei Key Laboratory of Polymer
Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
| | - Xiangmei Liu
- Hubei
Collaborative Innovation Center for Advanced Organic Chemical Materials,
Ministry-of-Education Key Laboratory for the Green Preparation and
Application of Functional Materials, Hubei Key Laboratory of Polymer
Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
| | - Lei Tan
- Hubei
Collaborative Innovation Center for Advanced Organic Chemical Materials,
Ministry-of-Education Key Laboratory for the Green Preparation and
Application of Functional Materials, Hubei Key Laboratory of Polymer
Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
| | - Zhenduo Cui
- School
of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Xianjin Yang
- School
of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Shengli Zhu
- School
of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Zhaoyang Li
- School
of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Xubo Yuan
- School
of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Yufeng Zheng
- State
Key Laboratory for Turbulence and Complex System and Department of
Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Kelvin Wai Kwok Yeung
- Department
of Orthopaedics & Traumatology, Li KaShing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong 999077, China
| | - Paul K. Chu
- Department
of Physics and Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Shuilin Wu
- School
of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
- Hubei
Collaborative Innovation Center for Advanced Organic Chemical Materials,
Ministry-of-Education Key Laboratory for the Green Preparation and
Application of Functional Materials, Hubei Key Laboratory of Polymer
Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
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13
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Cito M, Pellegrini S, Piemonti L, Sordi V. The potential and challenges of alternative sources of β cells for the cure of type 1 diabetes. Endocr Connect 2018; 7:R114-R125. [PMID: 29555660 PMCID: PMC5861368 DOI: 10.1530/ec-18-0012] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 02/27/2018] [Indexed: 12/11/2022]
Abstract
The experience in the field of islet transplantation shows that it is possible to replace β cells in a patient with type 1 diabetes (T1D), but this cell therapy is limited by the scarcity of organ donors and by the danger associated to the immunosuppressive drugs. Stem cell therapy is becoming a concrete opportunity to treat various diseases. In particular, for a disease like T1D, caused by the loss of a single specific cell type that does not need to be transplanted back in its originating site to perform its function, a stem cell-based cell replacement therapy seems to be the ideal cure. New and infinite sources of β cells are strongly required. In this review, we make an overview of the most promising and advanced β cell production strategies. Particular hope is placed in pluripotent stem cells (PSC), both embryonic (ESC) and induced pluripotent stem cells (iPSC). The first phase 1/2 clinical trials with ESC-derived pancreatic progenitor cells are ongoing in the United States and Canada, but a successful strategy for the use of PSC in patients with diabetes has still to overcome several important hurdles. Another promising strategy of generation of new β cells is the transdifferentiation of adult cells, both intra-pancreatic, such as alpha, exocrine and ductal cells or extra-pancreatic, in particular liver cells. Finally, new advances in gene editing technologies have given impetus to research on the production of human organs in chimeric animals and on in situ reprogramming of adult cells through in vivo target gene activation.
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Affiliation(s)
- Monia Cito
- Diabetes Research InstituteIRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Silvia Pellegrini
- Diabetes Research InstituteIRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Lorenzo Piemonti
- Diabetes Research InstituteIRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele UniversityMilan, Italy
| | - Valeria Sordi
- Diabetes Research InstituteIRCCS San Raffaele Scientific Institute, Milan, Italy
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14
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Jeong HC, Cho SJ, Lee MO, Cha HJ. Technical approaches to induce selective cell death of pluripotent stem cells. Cell Mol Life Sci 2017; 74:2601-2611. [PMID: 28246701 PMCID: PMC11107638 DOI: 10.1007/s00018-017-2486-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 01/24/2017] [Accepted: 02/06/2017] [Indexed: 01/24/2023]
Abstract
Despite the recent promising results of clinical trials using human pluripotent stem cell (hPSC)-based cell therapies for age-related macular degeneration (AMD), the risk of teratoma formation resulting from residual undifferentiated hPSCs remains a serious and critical hurdle for broader clinical implementation. To mitigate the tumorigenic risk of hPSC-based cell therapy, a variety of approaches have been examined to ablate the undifferentiated hPSCs based on the unique molecular properties of hPSCs. In the present review, we offer a brief overview of recent attempts at selective elimination of undifferentiated hPSCs to decrease the risk of teratoma formation in hPSC-based cell therapy.
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Affiliation(s)
- Ho-Chang Jeong
- Dept. of Life Sciences, College of Natural Sciences, Sogang University, #1 Sinsu-dong, Mapo-gu, Seoul,, 121-742, Republic of Korea
| | - Seung-Ju Cho
- Dept. of Life Sciences, College of Natural Sciences, Sogang University, #1 Sinsu-dong, Mapo-gu, Seoul,, 121-742, Republic of Korea
| | - Mi-Ok Lee
- Stem Cell Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon,, 305-806, Republic of Korea
| | - Hyuk-Jin Cha
- Dept. of Life Sciences, College of Natural Sciences, Sogang University, #1 Sinsu-dong, Mapo-gu, Seoul,, 121-742, Republic of Korea.
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15
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Jeong HC, Choo SS, Kim KT, Hong KS, Moon SH, Cha HJ, Kim TH. Conductive hybrid matrigel layer to enhance electrochemical signals of human embryonic stem cells. SENSORS AND ACTUATORS B: CHEMICAL 2017; 242:224-230. [DOI: 10.1016/j.snb.2016.11.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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