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Kim HY, Shim JH, Kim BK, Heo CY. Vitamin D Attenuates Fibrotic Properties of Fibrous Dysplasia-Derived Cells for the Transit towards Osteocytic Phenotype. Int J Mol Sci 2024; 25:4954. [PMID: 38732172 PMCID: PMC11084186 DOI: 10.3390/ijms25094954] [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: 04/05/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
Fibrous dysplasia (FD) poses a therapeutic challenge due to the dysregulated extracellular matrix (ECM) accumulation within affected bone tissues. In this study, we investigate the therapeutic potential of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) in managing FD by examining its effects on FD-derived cells in vitro. Our findings demonstrate that 1,25(OH)2D3 treatment attenuates the pro-fibrotic phenotype of FD-derived cells by suppressing the expression of key pro-fibrotic markers and inhibiting cell proliferation and migration. Moreover, 1,25(OH)2D3 enhances mineralization by attenuating pre-osteoblastic cellular hyperactivity and promoting maturation towards an osteocytic phenotype. These results offer valuable insights into potential treatments for FD, highlighting the role of 1,25(OH)2D3 in modulating the pathological properties of FD-derived cells.
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Affiliation(s)
- Ha-Young Kim
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Republic of Korea;
- Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea;
| | - Jung-Hee Shim
- Department of Research Administration Team, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea;
- Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
| | - Baek-Kyu Kim
- Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea;
- Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
| | - Chan-Yeong Heo
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Republic of Korea;
- Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea;
- Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
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2
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Kim M, Schöbel L, Geske M, Boccaccini AR, Ghorbani F. Bovine serum albumin-modified 3D printed alginate dialdehyde-gelatin scaffolds incorporating polydopamine/SiO 2-CaO nanoparticles for bone regeneration. Int J Biol Macromol 2024; 264:130666. [PMID: 38453119 DOI: 10.1016/j.ijbiomac.2024.130666] [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: 09/15/2023] [Revised: 02/27/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
Three-dimensional (3D) printing allows precise manufacturing of bone scaffolds for patient-specific applications and is one of the most recently developed and implemented technologies. In this study, bilayer and multimaterial alginate dialdehyde-gelatin (ADA-GEL) scaffolds incorporating polydopamine (PDA)/SiO2-CaO nanoparticle complexes were 3D printed using a pneumatic extrusion-based 3D printing technology and further modified on the surface with bovine serum albumin (BSA) for application in bone regeneration. The morphology, chemistry, and in vitro bioactivity of PDA/SiO2-CaO nanoparticle complexes were characterized (n = 3) and compared with those of mesoporous SiO2-CaO nanoparticles. Successful deposition of the PDA layer on the surface of the SiO2-CaO nanoparticles allowed better dispersion in a liquid medium and showed enhanced bioactivity. Rheological studies (n = 3) of ADA-GEL inks consisting of PDA/SiO2-CaO nanoparticle complexes showed results that may indicate better injectability and printability behavior compared to ADA-GEL inks incorporating unmodified nanoparticles. Microscopic observations of 3D printed scaffolds revealed that PDA/SiO2-CaO nanoparticle complexes introduced additional topography onto the surface of 3D printed scaffolds. Additionally, the modified scaffolds were mechanically stable and elastic, closely mimicking the properties of natural bone. Furthermore, protein-coated bilayer scaffolds displayed controllable absorption and biodegradation, enhanced bioactivity, MC3T3-E1 cell adhesion, proliferation, and higher alkaline phosphatase (ALP) activity (n = 3) compared to unmodified scaffolds. Consequently, the present results confirm that ADA-GEL scaffolds incorporating PDA/SiO2-CaO nanoparticle complexes modified with BSA offer a promising approach for bone regeneration applications.
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Affiliation(s)
- MinJoo Kim
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany; Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), LMU University Hospital, LMU Munich, 81377 Munich, Germany
| | - Lisa Schöbel
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany
| | - Michael Geske
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany; Institute of Polymer Materials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Martensstraße 7, 91058 Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany.
| | - Farnaz Ghorbani
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany; Department of Translational Health Sciences, University of Bristol, Bristol BS1 3NY, UK.
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Kim HY, Shim JH, Heo CY. A Rare Skeletal Disorder, Fibrous Dysplasia: A Review of Its Pathogenesis and Therapeutic Prospects. Int J Mol Sci 2023; 24:15591. [PMID: 37958575 PMCID: PMC10650015 DOI: 10.3390/ijms242115591] [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: 09/16/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Fibrous dysplasia (FD) is a rare, non-hereditary skeletal disorder characterized by its chronic course of non-neoplastic fibrous tissue buildup in place of healthy bone. A myriad of factors have been associated with its onset and progression. Perturbation of cell-cell signaling networks and response outputs leading to disrupted building blocks, incoherent multi-level organization, and loss of rigid structural motifs in mineralized tissues are factors that have been identified to participate in FD induction. In more recent years, novel insights into the unique biology of FD are transforming our understandings of its pathology, natural discourse of the disease, and treatment prospects. Herein, we built upon existing knowledge with recent findings to review clinical, etiologic, and histological features of FD and discussed known and potential mechanisms underlying FD manifestations. Subsequently, we ended on a note of optimism by highlighting emerging therapeutic approaches aimed at either halting or ameliorating disease progression.
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Affiliation(s)
- Ha-Young Kim
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Republic of Korea;
- Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea
| | - Jung-Hee Shim
- Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea;
- Department of Research Administration Team, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
| | - Chan-Yeong Heo
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Republic of Korea;
- Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea
- Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea;
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4
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Olaizola P, Banales JM. PFKFB4 Is a Metabolic Driver of HCC Progression and Chemoresistance Through ROS Mitigation. Cell Mol Gastroenterol Hepatol 2023; 15:1527-1529. [PMID: 36963434 DOI: 10.1016/j.jcmgh.2023.02.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/26/2023]
Affiliation(s)
- Paula Olaizola
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom; National Institute for the Study of Liver and Gastrointestinal Diseases, CIBERehd, "Instituto de Salud Carlos III", Madrid, Spain
| | - Jesus M Banales
- National Institute for the Study of Liver and Gastrointestinal Diseases, CIBERehd, "Instituto de Salud Carlos III", Madrid, Spain; Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute, Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain; IKERBASQUE, Basque Foundation for Science, Bilbao, Spain; Department of Biochemistry and Genetics, School of Sciences, University of Navarra, Pamplona, Spain.
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Jeong JE, Seol B, Kim HS, Kim JY, Cho YS. Exploration of Alternative Splicing Events in Mesenchymal Stem Cells from Human Induced Pluripotent Stem Cells. Genes (Basel) 2021; 12:genes12050737. [PMID: 34068253 PMCID: PMC8153164 DOI: 10.3390/genes12050737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/12/2021] [Accepted: 05/12/2021] [Indexed: 12/14/2022] Open
Abstract
Although comparative genome-wide transcriptomic analysis has provided insight into the biology of human induced pluripotent stem cell-derived mesenchymal stem cells (iMSCs), the distinct alternative splicing (AS) signatures of iMSCs remain elusive. Here, we performed Illumina RNA sequencing analysis to characterize AS events in iMSCs compared with tissue-derived MSCs. A total of 4586 differentially expressed genes (|FC| > 2) were identified between iMSCs and umbilical cord blood-derived MSCs (UCB-MSCs), including 2169 upregulated and 2417 downregulated genes. Of these, 164 differentially spliced events (BF > 20) in 112 genes were identified between iMSCs and UCB-MSCs. The predominant type of AS found in iMSCs was skipped exons (43.3%), followed by retained introns (19.5%), alternative 3′ (15.2%) and 5′ (12.8%) splice sites, and mutually exclusive exons (9.1%). Functional enrichment analysis showed that the differentially spliced genes (|FC| > 2 and BF > 20) were mainly enriched in functions associated with focal adhesion, extracellular exosomes, extracellular matrix organization, cell adhesion, and actin binding. Splice isoforms of selected genes including TRPT1, CNN2, and AP1G2, identified in sashimi plots, were further validated by RT-PCR analysis. This study provides valuable insight into the biology of iMSCs and the translation of mechanistic understanding of iMSCs into therapeutic applications.
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Affiliation(s)
- Ji-Eun Jeong
- Stem Cell Research Laboratory, Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (J.-E.J.); (B.S.); (H.-S.K.); (J.-Y.K.)
| | - Binna Seol
- Stem Cell Research Laboratory, Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (J.-E.J.); (B.S.); (H.-S.K.); (J.-Y.K.)
| | - Han-Seop Kim
- Stem Cell Research Laboratory, Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (J.-E.J.); (B.S.); (H.-S.K.); (J.-Y.K.)
| | - Jae-Yun Kim
- Stem Cell Research Laboratory, Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (J.-E.J.); (B.S.); (H.-S.K.); (J.-Y.K.)
- Department of Bioscience, KRIBB School, University of Science & Technology, 113 Gwahak-ro, Yuseong-gu, Daejeon 34113, Korea
| | - Yee-Sook Cho
- Stem Cell Research Laboratory, Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (J.-E.J.); (B.S.); (H.-S.K.); (J.-Y.K.)
- Department of Bioscience, KRIBB School, University of Science & Technology, 113 Gwahak-ro, Yuseong-gu, Daejeon 34113, Korea
- Correspondence: ; Tel.: +82-42-860-4479; Fax: +82-42-860-4608
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Watanabe K, Nakamura T, Onodera S, Saito A, Shibahara T, Azuma T. A novel GNAS-mutated human induced pluripotent stem cell model for understanding GNAS-mutated tumors. Tumour Biol 2020; 42:1010428320962588. [PMID: 32996421 DOI: 10.1177/1010428320962588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A missense mutation of the guanine nucleotide binding protein alpha stimulating activity polypeptide 1 (GNAS) gene, typically Arg201Cys or Arg201His (R201H/R201C), leads to constitutive activation of the Gsα-cyclic AMP (cAMP) signaling pathway that causes several diseases. However, no germline mutations of GNAS have been identified to date, likely due to their lethality, and no robust human cell models have been generated. Therefore, the aim of this study was to generate GNAS-mutated disease-specific induced pluripotent stem cells as a model for these diseases. We then analyzed the functionality of this induced pluripotent stem cell model and differentiated epithelial cells. We generated disease-specific induced pluripotent stem cells by introducing a mutation in GNAS with the clustered regularly interspaced short palindromic repeats (CRISPR) nickase method, which has lower off-target effects than the conventional CRISPR/Cas9 method. We designed the target vector to contain the R201H mutation in GNAS, which was transfected into human control induced pluripotent stem cells (Nips-B2) by electroporation. We confirmed the establishment of GNASR201H-mutated (GNASR201H/+) induced pluripotent stem cells that exhibited a pluripotent stem cell phenotype. We analyzed the effect of the mutation on cAMP production, and further generated teratomas for immunohistochemical analysis of the luminal epithelial structure. GNAS-mutated induced pluripotent stem cells showed significantly higher levels of intracellular cAMP, which remained elevated state for a long time upon hormonal stimulation with parathyroid hormone or adrenocorticotropic hormone. Immunohistochemical analysis revealed that several mucins, including MUC1, 2, and MUC5AC, are expressed in cytokeratin 18 (CK18)-positive epithelial cells. However, we found few CK18-positive cells in mutated induced pluripotent stem cell-derived teratoma tissues, and reduced MUCINs expression in mutated epithelial cells. There was no difference in CDX2 expression; however, mutated epithelial cells were positive for CEA and CA19-9 expression. GNASR201H-mutated induced pluripotent stem cells and GNASR201H-mutated epithelial cells have distinct phenotypic and differentiation characteristics. We successfully established GNASR201H-mutated human induced pluripotent stem cells with increased cAMP production. Considering the differentiation potential of induced pluripotent stem cells, these cells will be useful as a model for elucidating the pathological mechanisms of GNAS-mutated diseases.
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Affiliation(s)
- Katsuhito Watanabe
- Department of Oral and Maxillofacial Surgery, Tokyo Dental College, Tokyo, Japan
| | | | - Shoko Onodera
- Department of Biochemistry, Tokyo Dental College, Tokyo, Japan
| | - Akiko Saito
- Department of Biochemistry, Tokyo Dental College, Tokyo, Japan
| | - Takahiko Shibahara
- Department of Oral and Maxillofacial Surgery, Tokyo Dental College, Tokyo, Japan
| | - Toshifumi Azuma
- Department of Biochemistry, Tokyo Dental College, Tokyo, Japan.,Department of Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
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Yang B, Yin P, Yang R, Xu B, Fu J, Zhi S, Dai M, Tan C, Chen H, Wang X. Holistic insights into meningitic Escherichia coli infection of astrocytes based on whole transcriptome profiling. Epigenomics 2020; 12:1611-1632. [PMID: 32938195 DOI: 10.2217/epi-2019-0342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To investigate the mRNAs and noncoding RNAs (ncRNAs) expression in astrocytes upon meningitic-Escherichia coli infection. Materials & methods: The transcription of mRNAs and ncRNAs were fully investigated and profiled by whole transcriptome sequencing and bioinformatic approaches. Whole transcriptome differences between the infected astrocytes and brain microvascular endothelial cells were further compared and characterized. Results: A total of 2045 mRNAs, 74 long noncoding RNAs, 27 miRNAs and 418 circular RNAs were differentially transcribed in astrocytes upon infection. Competing endogenous RNAs regulatory networks were constructed and preliminary validated. Transcriptomic differences between astrocyte and brain microvascular endothelial cells revealed the cell-specific responses against the infection. Conclusion: Our study comprehensively characterized the ncRNAs and mRNAs profiles in astrocytes upon meningitic-E. coli infection, which will facilitate future functional studies.
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Affiliation(s)
- Bo Yang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Peixiu Yin
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Ruicheng Yang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Bojie Xu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Jiyang Fu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Shuli Zhi
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Menghong Dai
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China.,Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of The People's Republic of China, Wuhan, Hubei 430070, China.,International Research Center for Animal Disease, Ministry of Science & Technology of The People's Republic of China, Wuhan, Hubei 430070, China
| | - Chen Tan
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China.,Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of The People's Republic of China, Wuhan, Hubei 430070, China.,International Research Center for Animal Disease, Ministry of Science & Technology of The People's Republic of China, Wuhan, Hubei 430070, China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China.,Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of The People's Republic of China, Wuhan, Hubei 430070, China.,International Research Center for Animal Disease, Ministry of Science & Technology of The People's Republic of China, Wuhan, Hubei 430070, China
| | - Xiangru Wang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China.,Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture of The People's Republic of China, Wuhan, Hubei 430070, China.,International Research Center for Animal Disease, Ministry of Science & Technology of The People's Republic of China, Wuhan, Hubei 430070, China
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Lee MO, Jung KB, Jo SJ, Hyun SA, Moon KS, Seo JW, Kim SH, Son MY. Modelling cardiac fibrosis using three-dimensional cardiac microtissues derived from human embryonic stem cells. J Biol Eng 2019; 13:15. [PMID: 30809271 PMCID: PMC6375184 DOI: 10.1186/s13036-019-0139-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 01/02/2019] [Indexed: 02/06/2023] Open
Abstract
Background Cardiac fibrosis is the most common pathway of many cardiac diseases. To date, there has been no suitable in vitro cardiac fibrosis model that could sufficiently mimic the complex environment of the human heart. Here, a three-dimensional (3D) cardiac sphere platform of contractile cardiac microtissue, composed of human embryonic stem cell (hESC)-derived cardiomyocytes (CMs) and mesenchymal stem cells (MSCs), is presented to better recapitulate the human heart. Results We hypothesized that MSCs would develop an in vitro fibrotic reaction in response to treatment with transforming growth factor-β1 (TGF-β1), a primary inducer of cardiac fibrosis. The addition of MSCs improved sarcomeric organization, electrophysiological properties, and the expression of cardiac-specific genes, suggesting their physiological relevance in the generation of human cardiac microtissue model in vitro. MSCs could also generate fibroblasts within 3D cardiac microtissues and, subsequently, these fibroblasts were transdifferentiated into myofibroblasts by the exogenous addition of TGF-β1. Cardiac microtissues displayed fibrotic features such as the deposition of collagen, the presence of numerous apoptotic CMs and the dissolution of mitochondrial networks. Furthermore, treatment with pro-fibrotic substances demonstrated that this model could reproduce key molecular and cellular fibrotic events. Conclusions This highlights the potential of our 3D cardiac microtissues as a valuable tool for manifesting and evaluating the pro-fibrotic effects of various agents, thereby representing an important step forward towards an in vitro system for the prediction of drug-induced cardiac fibrosis and the study of the pathological changes in human cardiac fibrosis. Electronic supplementary material The online version of this article (10.1186/s13036-019-0139-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mi-Ok Lee
- 1Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 341411 Republic of Korea
| | - Kwang Bo Jung
- 1Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 341411 Republic of Korea.,2Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113 Republic of Korea
| | - Seong-Jae Jo
- 1Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 341411 Republic of Korea.,2Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113 Republic of Korea
| | - Sung-Ae Hyun
- Research Group for Safety Pharmacology, Korea Institute of Toxicology, KRICT, Daejeon, 34114 Republic of Korea
| | - Kyoung-Sik Moon
- Research Group for Safety Pharmacology, Korea Institute of Toxicology, KRICT, Daejeon, 34114 Republic of Korea
| | - Joung-Wook Seo
- Research Group for Safety Pharmacology, Korea Institute of Toxicology, KRICT, Daejeon, 34114 Republic of Korea
| | - Sang-Heon Kim
- 4Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul, 02792 Republic of Korea.,5Department of Biomedical Engineering, KIST school, UST, Daejeon, 34113 Republic of Korea
| | - Mi-Young Son
- 1Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 341411 Republic of Korea.,2Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113 Republic of Korea
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9
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Lee MO, Jeon H, Son MY, Lee SC, Cho YS. Clump-passaging-based efficient 3D culture of human pluripotent stem cells under chemically defined conditions. Biochem Biophys Res Commun 2017; 493:723-730. [PMID: 28859981 DOI: 10.1016/j.bbrc.2017.08.124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 08/28/2017] [Indexed: 12/27/2022]
Abstract
Large-scale production of human pluripotent stem cells (hPSCs) in an efficient and safe manner is crucial to the successful application of hPSCs in biomedical research and regenerative medicine. Three-dimensional culture methods for hPSCs have been extensively studied using single-cell passaging approaches; however, these techniques have been challenged by the induction of massive cell death and accumulation of genomic abnormalities. In this work, we developed and optimized a novel, simple clump-passaging method for in vitro hPSCs 3-dimensional (3D) culture that can be exploited for large-scale production. Fully grown hPSC spheroids were dissociated into smaller-sized spheroid clumps by simple treatment with enzyme-free dissociation buffer, and clumped hPSCs were inoculated and maintained for 3D suspension culture. Our clump-passaging method effectively increased the hPSCs survival rate after subculture and supported scalable hPSCs 3D expansion. We also tested and selected chemically defined media formulations that are suitable for 3D culture and commercially available. Overall, our clump-passaging and expansion method demonstrated high survival and expansion rates for hPSC spheroids compared with conventional methods and may also have the advantage of maintaining genomic stability.
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Affiliation(s)
- Mi-Ok Lee
- Stem Cell Research Laboratory, Immunotherapy Convergence Research Center, KRIBB, Daejeon, Republic of Korea.
| | - Hyejin Jeon
- Stem Cell Research Laboratory, Immunotherapy Convergence Research Center, KRIBB, Daejeon, Republic of Korea.
| | - Mi-Young Son
- Stem Cell Research Center, KRIBB, Daejeon, Republic of Korea; Department of Bioscience, KRIBB School, University of Science & Technology, Daejeon, Republic of Korea.
| | - Sang Chul Lee
- Research Center for Metabolic Regulation, KRIBB, Daejeon, Republic of Korea.
| | - Yee Sook Cho
- Stem Cell Research Laboratory, Immunotherapy Convergence Research Center, KRIBB, Daejeon, Republic of Korea; Department of Bioscience, KRIBB School, University of Science & Technology, Daejeon, Republic of Korea.
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