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Butler K, Ahmed S, Jablonski J, Hookway TA. Engineered Cardiac Microtissue Biomanufacturing Using Human Induced Pluripotent Stem Cell Derived Epicardial Cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.13.593960. [PMID: 38798424 PMCID: PMC11118268 DOI: 10.1101/2024.05.13.593960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Epicardial cells are a crucial component in constructing in vitro 3D tissue models of the human heart, contributing to the ECM environment and the resident mesenchymal cell population. Studying the human epicardium and its development from the proepicardial organ is difficult, but induced pluripotent stem cells can provide a source of human epicardial cells for developmental modeling and for biomanufacturing heterotypic cardiac tissues. This study shows that a robust population of epicardial cells (approx. 87.7% WT1+) can be obtained by small molecule modulation of the Wnt signaling pathway. The population maintains WT1 expression and characteristic epithelial morphology over successive passaging, but increases in size and decreases in cell number, suggesting a limit to their expandability in vitro. Further, low passage number epicardial cells formed into more robust 3D microtissues compared to their higher passage counterparts, suggesting that the ideal time frame for use of these epicardial cells for tissue engineering and modeling purposes is early on in their differentiated state. Additionally, the differentiated epicardial cells displayed two distinct morphologic sub populations with a subset of larger, more migratory cells which led expansion of the epicardial cells across various extracellular matrix environments. When incorporated into a mixed 3D co-culture with cardiomyocytes, epicardial cells promoted greater remodeling and migration without impairing cardiomyocyte function. This study provides an important characterization of stem cell-derived epicardial cells, identifying key characteristics that influence their ability to fabricate consistent engineered cardiac tissues.
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Affiliation(s)
- Kirk Butler
- Biomedical Engineering Department, Binghamton University, the State University of New York, Binghamton NY 13902
| | - Saif Ahmed
- Biomedical Engineering Department, Binghamton University, the State University of New York, Binghamton NY 13902
| | - Justin Jablonski
- Biomedical Engineering Department, University of Rochester, Rochester, NY14627
| | - Tracy A. Hookway
- Biomedical Engineering Department, Binghamton University, the State University of New York, Binghamton NY 13902
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Marzoog BA. Transcription Factors - the Essence of Heart Regeneration: A Potential Novel Therapeutic Strategy. Curr Mol Med 2023; 23:232-238. [PMID: 35170408 DOI: 10.2174/1566524022666220216123650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 12/02/2021] [Accepted: 12/07/2021] [Indexed: 02/08/2023]
Abstract
Myocardial cell injury and following sequelae are the primary reasons for death globally. Unfortunately, myocardiocytes in adults have limited regeneration capacity. Therefore, the generation of neo myocardiocytes from non-myocardial cells is a surrogate strategy. Transcription factors (TFs) can be recruited to achieve this tremendous goal. Transcriptomic analyses have suggested that GATA, Mef2c, and Tbx5 (GMT cocktail) are master TFs to transdifferentiate/reprogram cell linage of fibroblasts, somatic cells, mesodermal cells into myocardiocytes. However, adding MESP1, MYOCD, ESRRG, and ZFPM2 TFs induces the generation of more efficient and physiomorphological features for induced myocardiocytes. Moreover, the same cocktail of transcription factors can induce the proliferation and differentiation of induced/pluripotent stem cells into myocardial cells. Amelioration of impaired myocardial cells involves the activation of healing transcription factors, which are induced by inflammation mediators; IL6, tumor growth factor β, and IL22. Transcription factors regulate the cellular and subcellular physiology of myocardiocytes to include mitotic cell cycling regulation, karyokinesis and cytokinesis, hypertrophic growth, adult sarcomeric contractile protein gene expression, fatty acid metabolism, and mitochondrial biogenesis and maturation. Cell therapy by transcription factors can be applied to cardiogenesis and ameliorating impaired cardiocytes. Transcription factors are the cornerstone in cell differentiation.
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Affiliation(s)
- Basheer Abdullah Marzoog
- Department of Normal and Pathological Physiology, National Research Mordovia State University, Bolshevitskaya Street, 68, Saransk, Rep. Mordovia, 430005, Russia
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Human embryonic stem cell-specific role of YAP in maintenance of self-renewal and survival. Cell Mol Life Sci 2022; 79:544. [PMID: 36219276 DOI: 10.1007/s00018-022-04558-x] [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: 05/24/2022] [Revised: 08/30/2022] [Accepted: 09/06/2022] [Indexed: 11/03/2022]
Abstract
Human embryonic stem cells (hESCs) have unique characteristics, such as self-renewal and pluripotency, which are distinct from those of other cell types. These characteristics of hESCs are tightly regulated by complex signaling mechanisms. In this study, we demonstrate that yes-associated protein (YAP) functions in an hESC-specific manner to maintain self-renewal and survival in hESCs. hESCs were highly sensitive to YAP downregulation to promote cell survival. Interestingly, hESCs displayed dynamic changes in YAP expression in response to YAP downregulation. YAP was critical for the maintenance of self-renewal. Additionally, the function of YAP in maintenance of self-renewal and cell survival was hESC-specific. Doxycycline upregulated YAP in hESCs and attenuated the decreased cell survival induced by YAP downregulation. However, decreased expression of self-renewal markers triggered by YAP downregulation and neural/cardiac differentiation were affected by doxycycline treatment. Collectively, the results reveal the mechanism underlying the role of YAP and the novel function of doxycycline in hESCs.
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Shimomura S, Inoue H, Arai Y, Nakagawa S, Fujii Y, Kishida T, Shin-Ya M, Ichimaru S, Tsuchida S, Mazda O, Kubo T. Hypoxia promotes differentiation of pure cartilage from human induced pluripotent stem cells. Mol Med Rep 2022; 26:229. [PMID: 35593322 PMCID: PMC9178684 DOI: 10.3892/mmr.2022.12745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 04/25/2022] [Indexed: 11/28/2022] Open
Abstract
While cartilage can be produced from induced pluripotent stem cells (iPSCs), challenges such as long culture periods and compromised tissue purity continue to prevail. The present study aimed to determine whether cartilaginous tissue could be produced from iPSCs under hypoxia and, if so, to evaluate its effects on cellular metabolism and purity of the produced tissue. Human iPSCs (hiPSCs) were cultured for cartilage differentiation in monolayers under normoxia or hypoxia (5% O2), and chondrocyte differentiation was evaluated using reverse transcription-quantitative PCR and fluorescence-activated cell sorting. Subsequently, cartilage differentiation of hiPSCs was conducted in 3D culture under normoxia or hypoxia (5% O2), and the formed cartilage-like tissues were evaluated on days 28 and 56 using histological analyses. Hypoxia suppressed the expression levels of the immature mesodermal markers brachyury (T) and forkhead box protein F1; however, it promoted the expression of the chondrogenic markers Acan and CD44. The number of sex-determining region Y-box 9-positive cells and the percentages of safranin O-positive and type 2 collagen-positive tissues increased under hypoxic conditions. Moreover, upon hypoxia-inducible factor (HIF)-1α staining, nuclei of tissues cultured under hypoxia stained more deeply compared with those of tissues cultured under normoxia. Overall, these findings indicated that hypoxia not only enhanced cartilage matrix production, but also improved tissue purity by promoting the expression of HIF-1α gene. Potentially, pure cartilage-like tissues could be produced rapidly and conveniently using this method.
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Affiliation(s)
- Seiji Shimomura
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
| | - Hiroaki Inoue
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
| | - Yuji Arai
- Department of Sports and Para‑Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
| | - Shuji Nakagawa
- Department of Sports and Para‑Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
| | - Yuta Fujii
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
| | - Tsunao Kishida
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
| | - Masaharu Shin-Ya
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
| | - Shohei Ichimaru
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
| | - Shinji Tsuchida
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
| | - Osam Mazda
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
| | - Toshikazu Kubo
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
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Purification of Colon Carcinoma Cells from Primary Colon Tumor Using a Filtration Method via Porous Polymeric Filters. Polymers (Basel) 2021; 13:polym13193411. [PMID: 34641226 PMCID: PMC8513025 DOI: 10.3390/polym13193411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 09/26/2021] [Accepted: 09/30/2021] [Indexed: 11/17/2022] Open
Abstract
Cancer stem cells (CSCs) or cancer-initiating cells (CICs) are key factors for tumor generation and metastasis. We investigated a filtration method to enhance CSCs (CICs) from colon carcinoma HT-29 cells and primary colon carcinoma cells derived from patient colon tumors using poly(lactide-co-glycolic acid)/silk screen (PLGA/SK) filters. The colon carcinoma cell solutions were permeated via porous filters to obtain a permeation solution. Then, the cell cultivation media were permeated via the filters to obtain the recovered solution, where the colon carcinoma cells that adhered to the filters were washed off into the recovered solution. Subsequently, the filters were incubated in the culture media to obtain the migrated cells via the filters. Colon carcinoma HT-29 cells with high tumorigenicity, which might be CSCs (CICs), were enhanced in the cells in the recovered solution and in the migrated cells based on the CSC (CIC) marker expression, colony-forming unit assay, and carcinoembryonic antigen (CEA) production. Although primary colon carcinoma cells isolated from colon tumor tissues contained fibroblast-like cells, the primary colon carcinoma cells were purified from fibroblast-like cells by filtration through PLGA/SK filters, indicating that the filtration method is effective in purifying primary colon carcinoma cells.
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Sung TC, Huang WL, Ban LK, Lee HHC, Wang JH, Su HY, Jen SH, Chang YH, Yang JM, Higuchi A, Ye Q. Enrichment of cancer-initiating cells from colon cancer cells through porous polymeric membranes by a membrane filtration method. J Mater Chem B 2021; 8:10577-10585. [PMID: 33124643 DOI: 10.1039/d0tb02312d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cancer-initiating cells (CICs) or cancer stem cells (CSCs) are primarily responsible for tumor initiation, growth, and metastasis and represent a few percent of the total tumor cell population. We designed a membrane filtration protocol to enrich CICs (CSCs) from the LoVo colon cancer cell line via nylon mesh filter membranes with 11 and 20 μm pore sizes and poly(lactide-co-glycolic acid)/silk screen (PLGA/silk screen) porous membranes (pore sizes of 20-30 μm). The colon cancer cell solution was filtered through the membranes to obtain a permeate solution. Subsequently, the cell culture medium was filtered through the membranes to collect the recovery solution where the cells attached to the membranes were rinsed off into the recovery solution. Then, the membranes were cultivated in the cultivation medium to collect the migrated cells from the membranes. The cells migrated from any membrane had higher expression of the CSC surface markers CD44 and CD133, had higher colony formation levels, and produced more carcinoembryonic antigen (CEA) than the colon cancer cells cultivated on conventional tissue culture plates (control). We established a method to enrich the CICs (CSCs) of colon cancer cells from migrated cells through porous polymeric membranes by the membrane filtration protocol developed in this study.
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Affiliation(s)
- Tzu-Cheng Sung
- Department of Chemical and Materials Engineering, National Central University, No. 300, Jhongda Rd., Jhongli, Taoyuan, 32001, Taiwan. and School of Ophthalmology and Optometry, The Eye Hospital of Wenzhou Medical University, No. 270, Xueyuan Road, Wenzhou, Zhejiang 325027, China
| | - Wei-Lun Huang
- Department of Chemical and Materials Engineering, National Central University, No. 300, Jhongda Rd., Jhongli, Taoyuan, 32001, Taiwan.
| | - Lee-Kiat Ban
- Department of Surgery, Hsinchu Cathay General Hospital, No. 678, Sec 2, Zhonghua Rd., Hsinchu, 30060, Taiwan
| | - Henry Hsin-Chung Lee
- Department of Surgery, Hsinchu Cathay General Hospital, No. 678, Sec 2, Zhonghua Rd., Hsinchu, 30060, Taiwan and Graduate Institute of Translational and Interdisciplinary Medicine, National Central University, No. 300, Jhongda Rd., Jhongli, Taoyuan, 32001, Taiwan
| | - Jia-Hua Wang
- Department of Chemical and Materials Engineering, National Central University, No. 300, Jhongda Rd., Jhongli, Taoyuan, 32001, Taiwan.
| | - Her-Young Su
- Department of Obstetrics and Gynecology, Bobson Yuho Women and Children's Clinic, No. 182, Zhuangjing S. Rd., Zhubei City, Hsinchu 302, Taiwan
| | - Shih Hsi Jen
- Department of Obstetrics and Gynecology, Taiwan Landseed Hospital, 77, Kuangtai Road, Pingjen City, Taoyuan 32405, Taiwan
| | - Yen-Hsiang Chang
- Department of General Dentistry, Chang Gung Memorial Hospital, Guishan, Taoyuan 333, Taiwan
| | - Jen-Ming Yang
- Department of Chemical and Materials Engineering, Chang Gung University, Guishan, Taoyuan 333, Taiwan.
| | - Akon Higuchi
- Department of Chemical and Materials Engineering, National Central University, No. 300, Jhongda Rd., Jhongli, Taoyuan, 32001, Taiwan. and School of Ophthalmology and Optometry, The Eye Hospital of Wenzhou Medical University, No. 270, Xueyuan Road, Wenzhou, Zhejiang 325027, China and Department of Chemical Engineering and R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 320, Taiwan and Center for Emergent Matter Science, Riken, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan and Wenzhou Institute, University of Chinese Academy of Science, No. 16, Xinsan Road, Hi-tech Industry Park, Wenzhou, Zhejiang, China
| | - Qingsong Ye
- Center of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China and Skeletal Biology Research Center, OMFS, Massachusetts General Hospital & Harvard School of Dental Medicine, Boston, MA02114, USA and School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
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Regulation of cardiomyocyte fate plasticity: a key strategy for cardiac regeneration. Signal Transduct Target Ther 2021; 6:31. [PMID: 33500391 PMCID: PMC7838318 DOI: 10.1038/s41392-020-00413-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/11/2020] [Accepted: 10/26/2020] [Indexed: 01/14/2023] Open
Abstract
With the high morbidity and mortality rates, cardiovascular diseases have become one of the most concerning diseases worldwide. The heart of adult mammals can hardly regenerate naturally after injury because adult cardiomyocytes have already exited the cell cycle, which subseqently triggers cardiac remodeling and heart failure. Although a series of pharmacological treatments and surgical methods have been utilized to improve heart functions, they cannot replenish the massive loss of beating cardiomyocytes after injury. Here, we summarize the latest research progress in cardiac regeneration and heart repair through altering cardiomyocyte fate plasticity, which is emerging as an effective strategy to compensate for the loss of functional cardiomyocytes and improve the impaired heart functions. First, residual cardiomyocytes in damaged hearts re-enter the cell cycle to acquire the proliferative capacity by the modifications of cell cycle-related genes or regulation of growth-related signals. Additionally, non-cardiomyocytes such as cardiac fibroblasts, were shown to be reprogrammed into cardiomyocytes and thus favor the repair of damaged hearts. Moreover, pluripotent stem cells have been shown to transform into cardiomyocytes to promote heart healing after myocardial infarction (MI). Furthermore, in vitro and in vivo studies demonstrated that environmental oxygen, energy metabolism, extracellular factors, nerves, non-coding RNAs, etc. play the key regulatory functions in cardiac regeneration. These findings provide the theoretical basis of targeting cellular fate plasticity to induce cardiomyocyte proliferation or formation, and also provide the clues for stimulating heart repair after injury.
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Hamad S, Derichsweiler D, Papadopoulos S, Nguemo F, Šarić T, Sachinidis A, Brockmeier K, Hescheler J, Boukens BJ, Pfannkuche K. Generation of human induced pluripotent stem cell-derived cardiomyocytes in 2D monolayer and scalable 3D suspension bioreactor cultures with reduced batch-to-batch variations. Theranostics 2019; 9:7222-7238. [PMID: 31695764 PMCID: PMC6831300 DOI: 10.7150/thno.32058] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 07/16/2019] [Indexed: 02/06/2023] Open
Abstract
Human induced pluripotent stem cell derived cardiomyocytes (hiPSC-CMs) are promising candidates to treat myocardial infarction and other cardiac diseases. Such treatments require pure cardiomyocytes (CMs) in large quantities. Methods: In the present study we describe an improved protocol for production of hiPSC-CMs in which hiPSCs are first converted into mesodermal cells by stimulation of wingless (Wnt) signaling using CHIR99021, which are then further differentiated into CM progenitors by simultaneous inhibition of porcupine and tankyrase pathways using IWP2 and XAV939 under continuous supplementation of ascorbate during the entire differentiation procedure. Results: The protocol resulted in reproducible generation of >90% cardiac troponin T (TNNT2)-positive cells containing highly organized sarcomeres. In 2D monolayer cultures CM yields amounted to 0.5 million cells per cm2 growth area, and on average 72 million cells per 100 mL bioreactor suspension culture without continuous perfusion. The differentiation efficiency was hardly affected by the initial seeding density of undifferentiated hiPSCs. Furthermore, batch-to-batch variations were reduced by combinatorial use of ascorbate, IWP2, and XAV939. Conclusion: Combined inhibition of porcupine and tankyrase sub-pathways of Wnt signaling and continuous ascorbate supplementation, enable robust and efficient production of hiPSC-CMs.
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Affiliation(s)
- Sarkawt Hamad
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, University of Cologne, Medical Faculty, Cologne, Germany
- Biology Department, Faculty of Science, Soran University, Soran, Kurdistan region-Iraq
| | - Daniel Derichsweiler
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, University of Cologne, Medical Faculty, Cologne, Germany
| | - Symeon Papadopoulos
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, University of Cologne, Medical Faculty, Cologne, Germany
- Center for Physiology and Pathophysiology, Institute for Vegetative Physiology, University of Cologne, Medical Faculty, Cologne, Germany
| | - Filomain Nguemo
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, University of Cologne, Medical Faculty, Cologne, Germany
| | - Tomo Šarić
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, University of Cologne, Medical Faculty, Cologne, Germany
| | - Agapios Sachinidis
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, University of Cologne, Medical Faculty, Cologne, Germany
| | - Konrad Brockmeier
- Department of Pediatric Cardiology, University Clinics of Cologne, Cologne, Germany
| | - Jürgen Hescheler
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, University of Cologne, Medical Faculty, Cologne, Germany
| | - Bastiaan J Boukens
- Department of Medical Biology, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Kurt Pfannkuche
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, University of Cologne, Medical Faculty, Cologne, Germany
- Department of Pediatric Cardiology, University Clinics of Cologne, Cologne, Germany
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Kim S, Jeon JM, Kwon OK, Choe MS, Yeo HC, Peng X, Cheng Z, Lee MY, Lee S. Comparative Proteomic Analysis Reveals the Upregulation of Ketogenesis in Cardiomyocytes Differentiated from Induced Pluripotent Stem Cells. Proteomics 2019; 19:e1800284. [PMID: 30724459 DOI: 10.1002/pmic.201800284] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 11/08/2018] [Indexed: 12/12/2022]
Abstract
Diverse metabolic pathways, such as the tricarboxylic acid cycle, pyruvate metabolism, and oxidative phosphorylation, regulate the differentiation of induced pluripotent stem cells (iPSCs) to cells of specific lineages and organs. Here, the protein dynamics during cardiac differentiation of human iPSCs into cardiomyocytes (CMs) are characterized. The differentiation is induced by N-(6-methyl-2-benzothiazolyl)-2-[(3,4,6,7-tetrahydro-4-oxo-3-phenylthieno[3,2-d]pyrimidin-2-yl)thio]-acetamide, a Wnt signaling inhibitor, and confirmed by the mRNA and protein expression of cTnT and MLC2A in CMs. For comparative proteomics, cells from three stages, namely, hiPSCs, cardiac progenitor cells, and CMs, are prepared using the three-plex tandem mass tag labeling approach. In total, 3970 proteins in triplicate analysis are identified. As the result, the upregulation of proteins associated with branched chain amino acid degradation and ketogenesis by the Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis are observed. The levels of 3-hydroxymethyl-3-methylglutaryl-CoA lyase, 3-hydroxymethyl-3-methylglutaryl-CoA synthase 2, and 3-hydroxybutyrate dehydrogenase 1, involved in ketone body metabolism, are determined using western blotting, and the level of acetoacetate, the final product of ketogenesis, is higher in CMs. Taken together, these observations indicate that proteins required for the production of diverse energy sources are naturally self-expressed during cardiomyogenic differentiation. Furthermore, acetoacetate concentration might act as a regulator of this differentiation.
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Affiliation(s)
- Sunjoo Kim
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Ju Mi Jeon
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Oh Kwang Kwon
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Mu Seog Choe
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Han Cheol Yeo
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Xiaojun Peng
- PTM Biolab LLC, Hangzhou, Zhejiang, 310018, China
| | | | - Min Young Lee
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Sangkyu Lee
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
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Abstract
In vitro generated human cardiomyocytes hold the ultimate promise for heart patients for repair of injured or diseased myocardium, but they also provide experimental models for studying normal cardiomyocyte development, for disease modeling and for drug development. Here we provide reliable protocols for differentiation of human embryonic stem cells into functional cardiomyocytes, together with Notes about troubleshooting and optimizing such protocols for specific cell lines. This chapter also briefly discusses other published protocols and those further adapted for differentiation of induced pluripotent stem cells into cardiomyocytes.
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Affiliation(s)
- Silvia Mazzotta
- Institute of Medical Sciences, Foresterhill Health Campus, University of Aberdeen, Aberdeen, Scotland, UK
| | - Adam T Lynch
- Institute of Medical Sciences, Foresterhill Health Campus, University of Aberdeen, Aberdeen, Scotland, UK
| | - Stefan Hoppler
- Institute of Medical Sciences, Foresterhill Health Campus, University of Aberdeen, Aberdeen, Scotland, UK.
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Moustaqil M, Bhumkar A, Gonzalez L, Raoul L, Hunter DJB, Carrive P, Sierecki E, Gambin Y. A Split-Luciferase Reporter Recognizing GFP and mCherry Tags to Facilitate Studies of Protein-Protein Interactions. Int J Mol Sci 2017; 18:E2681. [PMID: 29232933 PMCID: PMC5751283 DOI: 10.3390/ijms18122681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/21/2017] [Accepted: 12/05/2017] [Indexed: 12/31/2022] Open
Abstract
The use of fluorescently-tagged proteins in microscopy has become routine, and anti-GFP (Green fluorescent protein) affinity matrices are increasingly used in proteomics protocols. However, some protein-protein interactions assays, such as protein complementation assays (PCA), require recloning of each protein as a fusion with the different parts of the complementation system. Here we describe a generic system where the complementation is separated from the proteins and can be directly used with fluorescently-tagged proteins. By using nanobodies and performing tests in cell-free expression systems, we accelerated the development of multiple reporters, detecting heterodimers and homodimers or oligomers tagged with GFP or mCherry. We demonstrate that the system can detect interactions at a broad range of concentrations, from low nanomolar up to micromolar.
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Affiliation(s)
- Mehdi Moustaqil
- European Molecular Biology Laboratory Australia (EMBL Australia) Node in Single Molecule Science, Sydney NSW 2031, Australia.
- School of Medical Sciences, The University of New South Wales, Sydney NSW 2031, Australia.
| | - Akshay Bhumkar
- European Molecular Biology Laboratory Australia (EMBL Australia) Node in Single Molecule Science, Sydney NSW 2031, Australia.
- School of Medical Sciences, The University of New South Wales, Sydney NSW 2031, Australia.
| | - Laura Gonzalez
- European Molecular Biology Laboratory Australia (EMBL Australia) Node in Single Molecule Science, Sydney NSW 2031, Australia.
- School of Medical Sciences, The University of New South Wales, Sydney NSW 2031, Australia.
| | - Lisa Raoul
- School of Medical Sciences, The University of New South Wales, Sydney NSW 2031, Australia.
| | - Dominic J B Hunter
- European Molecular Biology Laboratory Australia (EMBL Australia) Node in Single Molecule Science, Sydney NSW 2031, Australia.
| | - Pascal Carrive
- School of Medical Sciences, The University of New South Wales, Sydney NSW 2031, Australia.
| | - Emma Sierecki
- European Molecular Biology Laboratory Australia (EMBL Australia) Node in Single Molecule Science, Sydney NSW 2031, Australia.
- School of Medical Sciences, The University of New South Wales, Sydney NSW 2031, Australia.
| | - Yann Gambin
- European Molecular Biology Laboratory Australia (EMBL Australia) Node in Single Molecule Science, Sydney NSW 2031, Australia.
- School of Medical Sciences, The University of New South Wales, Sydney NSW 2031, Australia.
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