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Yang HM, Lee JE, Kim JY, You J, Kim J, Lee HS, Yoo HM, Kong MG, Han JK, Cho HJ, Park KW, Kang HJ, Koo BK, Park YB, Kim HS. Identification of cell-biologic mechanisms of coronary artery spasm and its ex vivo diagnosis using peripheral blood-derived iPSCs. Biomater Res 2023; 27:16. [PMID: 36803875 PMCID: PMC9938986 DOI: 10.1186/s40824-023-00345-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 01/25/2023] [Indexed: 02/20/2023] Open
Abstract
BACKGROUND Although vasospastic angina (VSA) is known to be caused by coronary artery spasm, no study has fully elucidated the exact underlying mechanism. Moreover, in order to confirm VSA, patients should undergo invasive coronary angiography with spasm provocation test. Herein, we investigated the pathophysiology of VSA using peripheral blood-derived induced pluripotent stem cells (iPSCs) and developed an ex vivo diagnostic method for VSA. METHODS AND RESULTS With 10 mL of peripheral blood from patients with VSA, we generated iPSCs and differentiated these iPSCs into target cells. As compared with vascular smooth muscle cells (VSMCs) differentiated from iPSCs of normal subjects with negative provocation test, VSA patient-specific iPSCs-derived VSMCs showed very strong contraction in response to stimulants. Moreover, VSA patient-specific VSMCs exhibited a significant increase in stimulation-induced intracellular calcium efflux (Changes in the relative fluorescence unit [ΔF/F]; Control group vs. VSA group, 2.89 ± 0.34 vs. 10.32 ± 0.51, p < 0.01), and exclusively induced a secondary or tertiary peak of calcium efflux, suggesting that those findings could be diagnostic cut-off values for VSA. The observed hyperreactivity of VSA patient-specific VSMCs were caused by the upregulation of sarco/endoplasmic reticulum Ca2+-ATPase 2a (SERCA2a) due to its enhanced small ubiquitin-related modifier (SUMO)ylation. This increased activity of SERCA2a was reversed by treatment with ginkgolic acid, an inhibitor of SUMOylated E1 molecules (pi/µg protein; VSA group vs. VSA + ginkgolic acid, 52.36 ± 0.71 vs. 31.93 ± 1.13, p < 0.01). CONCLUSIONS Our findings showed that abnormal calcium handling in sarco/endoplasmic reticulum could be induced by the enhanced SERCA2a activity in patients with VSA, leading to spasm. Such novel mechanisms of coronary artery spasm could be useful for drug development and diagnosis of VSA.
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Affiliation(s)
- Han-Mo Yang
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University Hospital, 101 Daekak-Ro, Chongno-Gu, Seoul, 03080 Korea ,National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Joo-Eun Lee
- National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Ju-Young Kim
- National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Jihye You
- National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Joonoh Kim
- National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Hak Seung Lee
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University Hospital, 101 Daekak-Ro, Chongno-Gu, Seoul, 03080 Korea ,National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Hee Min Yoo
- grid.410883.60000 0001 2301 0664Biometrology Group, Korea Research Institute of Standards and Science (KRISS), Daejeon, Korea
| | - Min Gyu Kong
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University Hospital, 101 Daekak-Ro, Chongno-Gu, Seoul, 03080 Korea ,grid.412678.e0000 0004 0634 1623Department of Internal Medicine, Soon Chun Hyang University Hospital, Bucheon, Korea
| | - Jung-Kyu Han
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University Hospital, 101 Daekak-Ro, Chongno-Gu, Seoul, 03080 Korea ,National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Hyun-Jai Cho
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University Hospital, 101 Daekak-Ro, Chongno-Gu, Seoul, 03080 Korea ,National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Kyung Woo Park
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University Hospital, 101 Daekak-Ro, Chongno-Gu, Seoul, 03080 Korea ,National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Hyun-Jae Kang
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University Hospital, 101 Daekak-Ro, Chongno-Gu, Seoul, 03080 Korea ,National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Bon-Kwon Koo
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University Hospital, 101 Daekak-Ro, Chongno-Gu, Seoul, 03080 Korea ,National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Young-Bae Park
- grid.412484.f0000 0001 0302 820XDepartment of Internal Medicine, Seoul National University Hospital, 101 Daekak-Ro, Chongno-Gu, Seoul, 03080 Korea ,National Research Laboratory for Stem Cell Niche, Seoul, Korea ,grid.412484.f0000 0001 0302 820XInnovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea
| | - Hyo-Soo Kim
- Department of Internal Medicine, Seoul National University Hospital, 101 Daekak-Ro, Chongno-Gu, Seoul, 03080, Korea. .,National Research Laboratory for Stem Cell Niche, Seoul, Korea. .,Innovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Korea. .,Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Seoul, 03080, Korea.
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Enhanced Generation of Human Induced Pluripotent Stem Cells from Peripheral Blood and Using Their Mesoderm Differentiation Ability to Regenerate Infarcted Myocardium. Stem Cells Int 2022; 2022:4104622. [PMID: 35186091 PMCID: PMC8856835 DOI: 10.1155/2022/4104622] [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: 09/16/2021] [Revised: 01/06/2022] [Accepted: 01/20/2022] [Indexed: 11/18/2022] Open
Abstract
Тhe most pressing issue in generating induced pluripotent stem cells (iPSCs) in clinical practice is the cell source. Compared to human dermal fibroblasts (HDFs), which have been widely used, human peripheral blood could be a more easily obtainable alternative. However, iPSCs generated from fresh peripheral blood require inconvenient specific methods including isolation. Recently, we succeeded in isolating and culturing human heart-derived circulating cells called circulating multipotent stem (CiMS) cells. Here, we investigated the generation efficiency of CiMS-derived iPSCs (CiMS-iPSCs) and tested their differentiation potential into mesodermal lineages and cardiovascular cells. We isolated and cultured CiMS cells from peripheral mononuclear cells with a high efficiency. Moreover, our method succeeded in reprogramming the CiMS cells and generating iPSCs with higher efficiency compared to when HDFs were used. Compared to HDF-iPSCs or human embryonic stem cells (hESCs), CiMS-iPSCs showed high differentiation potential into mesodermal lineage cells and subsequently into endothelial cells, vascular smooth muscle cells, and cardiomyocytes. Further, we checked the epigenetic status of each cell type. While methylation of the CpG site of the brachyury T promoter did not differ between cell types, the histone H3 lysine 4 trimethylation level in the brachyury T promoter region was enhanced in CiMS-iPSCs, compared to that in other cell types. In contrast, histone H3 lysine 9 acetylation was downregulated during the differentiation process of the CiMS-iPSCs. In the myocardial infarction model, the CiMS-iPSCs group showed more therapeutic potential in regenerating the myocardium than other cell types. Our study showed a new method to isolate human heart-derived stem cells from human peripheral blood and to generate iPSCs efficiently. Due to epigenetic memory, these CiMS-iPSCs easily differentiated into cardiovascular lineage cells, resulting in improved efficiency in vivo. These results suggest that our new method using CiMS cells has therapeutic potential in regenerative medicine using cell therapy.
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