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Ipsc derived cardiomyopathy

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https://www.readbyqxmd.com/read/30364772/impaired-adhesion-of-induced-pluripotent-stem-cell-derived-cardiac-progenitor-cells-ipsc-cpcs-to-isolated-extracellular-matrix-from-failing-hearts
#1
Elizabeth N McKown, Joshua L DeAguero, Benjamin D Canan, Ahmet Kilic, Yiliang Zhu, Paul M L Janssen, Dawn A Delfín
We tested the hypothesis that induced pluripotent stem cell-derived cardiac progenitor cells (iPSC-CPCs) are less able to adhere to the extracellular matrix (ECM) derived from failing human hearts with dilated cardiomyopathy compared to nonfailing human heart ECM. We also hypothesized that morphological development, cell beating rates, and mRNA levels of Nkx2.5 and cardiac troponin T would be altered after culturing the iPSC-CPCs on the failing heart ECM under cardiomyocyte differentiation conditions. We used microscopy to distinguish between adhered and unadhered cells, and to determine morphological development and cell beating...
October 2018: Heliyon
https://www.readbyqxmd.com/read/30343468/diabetic-cardiomyopathy-modelling-using-induced-pluripotent-stem-cell-derived-cardiomyocytes-recent-advances-and-emerging-models
#2
REVIEW
Cecilia Granéli, Ryan Hicks, Gabriella Brolén, Jane Synnergren, Peter Sartipy
The global burden of diabetes has drastically increased over the past decades and in 2017 approximately 4 million deaths were caused by diabetes and cardiovascular complications. Diabetic cardiomyopathy is a common complication of diabetes with early manifestations of diastolic dysfunction and left ventricular hypertrophy with subsequent progression to systolic dysfunction and ultimately heart failure. An in vitro model accurately recapitulating key processes of diabetic cardiomyopathy would provide a useful tool for investigations of underlying disease mechanisms to further our understanding of the disease and thereby potentially advance treatment strategies for patients...
October 20, 2018: Stem Cell Reviews
https://www.readbyqxmd.com/read/30332462/functional-abnormalities-in-induced-pluripotent-stem-cell-derived-cardiomyocytes-generated-from-titin-mutated-patients-with-dilated-cardiomyopathy
#3
Revital Schick, Lucy N Mekies, Yuval Shemer, Binyamin Eisen, Tova Hallas, Ronen Ben Jehuda, Meital Ben-Ari, Agnes Szantai, Lubna Willi, Rita Shulman, Michael Gramlich, Luna Simona Pane, Ilaria My, Dov Freimark, Marta Murgia, Gianluca Santamaria, Mihaela Gherghiceanu, Michael Arad, Alessandra Moretti, Ofer Binah
AIMS: Dilated cardiomyopathy (DCM), a myocardial disorder that can result in progressive heart failure and arrhythmias, is defined by ventricular chamber enlargement and dilatation, and systolic dysfunction. Despite extensive research, the pathological mechanisms of DCM are unclear mainly due to numerous mutations in different gene families resulting in the same outcome-decreased ventricular function. Titin (TTN)-a giant protein, expressed in cardiac and skeletal muscles, is an important part of the sarcomere, and thus TTN mutations are the most common cause of adult DCM...
2018: PloS One
https://www.readbyqxmd.com/read/30291295/empagliflozin-ammeliorates-high-glucose-induced-cardiac-dysfuntion-in-human-ipsc-derived-cardiomyocytes
#4
Kwong-Man Ng, Yee-Man Lau, Vidhu Dhandhania, Zhu-Jun Cai, Yee-Ki Lee, Wing-Hon Lai, Hung-Fat Tse, Chung-Wah Siu
Empagliflozin, a sodium-glucose co-transporter (SGLT) inhibitor, reduces heart failure and sudden cardiac death but the underlying mechanisms remain elusive. In cardiomyocytes, SGLT1 and SGLT2 expression is upregulated in diabetes mellitus, heart failure, and myocardial infarction. We hypothesise that empagliflozin exerts direct effects on cardiomyocytes that attenuate diabetic cardiomyopathy. To test this hypothesis, cardiomyocytes derived from human induced pluripotent stem cells (hiPSCs) were used to test the potential effects of empagliflozin on neutralization of cardiac dysfunction induced by diabetic-like cultures...
October 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30247079/gene-expression-changes-in-human-ipsc-derived-cardiomyocytes-after-x-ray-irradiation
#5
Benjamin V Becker, Matthäus Majewski, Michael Abend, Andreas Palnek, Kai Nestler, Matthias Port, Reinhard Ullmann
PURPOSE: Radiation-induced heart disease caused by cardiac exposure to ionizing radiation comprises a variety of cardiovascular effects. Research in this field has been hampered by limited availability of clinical samples and appropriate test models. In this study, we wanted to elucidate the molecular mechanisms underlying electrophysiological changes, which we have observed in a previous study. MATERIALS AND METHODS: We employed RNA deep-sequencing of human-induced pluripotent stem cell derived cardiomyocytes (hiPSC-CMs) 48 h after 5 Gy X-ray irradiation...
September 24, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/30219716/derivation-of-human-induced-pluripotent-stem-cell-line-euraci004-a-from-skin-fibroblasts-of-a-patient-with-arrhythmogenic-cardiomyopathy-carrying-the-heterozygous-pkp2-mutation-c-2569_3018del50
#6
Benedetta Ermon, Claudia B Volpato, Giada Cattelan, Rosamaria Silipigni, Marina Di Segni, Chiara Cantaloni, Michela Casella, Peter P Pramstaller, Giulio Pompilio, Elena Sommariva, Viviana Meraviglia, Alessandra Rossini
Arrhythmogenic Cardiomyopathy (ACM) is an inherited cardiac disease characterized by arrhythmias and fibro-fatty replacement in the ventricular myocardium. Causative mutations are mainly reported in desmosomal genes, especially in plakophilin2 (PKP2). Here, using a virus-free reprogramming approach, we generated induced pluripotent stem cells (iPSCs) from skin fibroblasts of one ACM patient carrying the frameshift heterozygous PKP2 mutation c.2569_3018del50. The iPSC line (EURACi004-A) showed the typical morphology of pluripotent cells, possessed normal karyotype and exhibited pluripotency markers and trilineage differentiation potential, including cardiomyogenic capability...
September 6, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/30101858/phenotypic-screening-using-patient-derived-induced-pluripotent-stem-cells-identified-pyr3-as-a-candidate-compound-for-the-treatment-of-infantile-hypertrophic-cardiomyopathy
#7
COMPARATIVE STUDY
Taku Sakai, Atsuhiko T Naito, Yuki Kuramoto, Masamichi Ito, Katsuki Okada, Tomoaki Higo, Akito Nakagawa, Masato Shibamoto, Toshihiro Yamaguchi, Tomokazu Sumida, Seitaro Nomura, Akihiro Umezawa, Shigeru Miyagawa, Yoshiki Sawa, Hiroyuki Morita, Jong-Kook Lee, Ichiro Shiojima, Yasushi Sakata, Issei Komuro
Hypertrophic cardiomyopathy (HCM) is a genetic disorder that is characterized by hypertrophy of the myocardium. Some of the patients are diagnosed for HCM during infancy, and the prognosis of infantile HCM is worse than general HCM. Nevertheless, pathophysiology of infantile HCM is less investigated and remains largely unknown. In the present study, we generated induced pluripotent stem cells (iPSCs) from two patients with infantile HCM: one with Noonan syndrome and the other with idiopathic HCM. We found that iPSC-derived cardiomyocytes (iPSC-CMs) from idiopathic HCM patient were significantly larger and showed higher diastolic intracellular calcium concentration compared with the iPSC-CMs from healthy subject...
September 26, 2018: International Heart Journal
https://www.readbyqxmd.com/read/30048710/generation-of-fabry-cardiomyopathy-model-for-drug-screening-using-induced-pluripotent-stem-cell-derived-cardiomyocytes-from-a-female-fabry-patient
#8
Yuki Kuramoto, Atsuhiko T Naito, Hiromasa Tojo, Taku Sakai, Masamichi Ito, Masato Shibamoto, Akito Nakagawa, Tomoaki Higo, Katsuki Okada, Toshihiro Yamaguchi, Jong-Kook Lee, Shigeru Miyagawa, Yoshiki Sawa, Yasushi Sakata, Issei Komuro
BACKGROUND: Fabry disease is an X-linked disease caused by mutations in α-galactosidase A (GLA); these mutations result in the accumulation of its substrates, mainly globotriaosylceramide (Gb3). The accumulation of glycosphingolipids induces pathogenic changes in various organs, including the heart, and Fabry cardiomyopathy is the most frequent cause of death in patients with Fabry disease. Existing therapies to treat Fabry disease have limited efficacy, and new approaches to improve the prognosis of patients with Fabry cardiomyopathy are required...
August 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29914921/determining-the-pathogenicity-of-a-genomic-variant-of-uncertain-significance-using-crispr-cas9-and-human-induced-pluripotent-stem-cells
#9
Ning Ma, Joe Zhang, Ilanit Itzhaki, Sophia L Zhang, Haodong Chen, Francois Haddad, Tomoya Kitani, Kitchener D Wilson, Lei Tian, Rajani Shrestha, Haodi Wu, Chi Keung Lam, Nazish Sayed, Joseph C Wu
Background -The progression toward low-cost and rapid next-generation sequencing has uncovered a multitude of variants of uncertain significance (VUS) in both patients and asymptomatic "healthy" individuals. A VUS is a rare or novel variant for which disease pathogenicity has not been conclusively demonstrated or excluded, and thus cannot be definitively annotated. VUS, therefore, pose critical clinical interpretation and risk-assessment challenges, and new methods are urgently needed to better characterize their pathogenicity...
June 18, 2018: Circulation
https://www.readbyqxmd.com/read/29874173/induced-pluripotent-stem-cells-for-cardiovascular-disease-modeling-and-precision-medicine-a-scientific-statement-from-the-american-heart-association
#10
REVIEW
Kiran Musunuru, Farah Sheikh, Rajat M Gupta, Steven R Houser, Kevin O Maher, David J Milan, Andre Terzic, Joseph C Wu
Induced pluripotent stem cells (iPSCs) offer an unprece-dented opportunity to study human physiology and disease at the cellular level. They also have the potential to be leveraged in the practice of precision medicine, for example, personalized drug testing. This statement comprehensively describes the provenance of iPSC lines, their use for cardiovascular disease modeling, their use for precision medicine, and strategies through which to promote their wider use for biomedical applications. Human iPSCs exhibit properties that render them uniquely qualified as model systems for studying human diseases: they are of human origin, which means they carry human genomes; they are pluripotent, which means that in principle, they can be differentiated into any of the human body's somatic cell types; and they are stem cells, which means they can be expanded from a single cell into millions or even billions of cell progeny...
January 2018: Circulation. Genomic and precision medicine
https://www.readbyqxmd.com/read/29772700/inhibition-of-arachidonate-12-15-lipoxygenase-improves-%C3%AE-galactosidase-efficacy-in-ipsc-derived-cardiomyocytes-from-fabry-patients
#11
Yueh Chien, Shih-Jie Chou, Yuh-Lih Chang, Hsin-Bang Leu, Yi-Ping Yang, Ping-Hsing Tsai, Ying-Hsiu Lai, Kuan-Hsuan Chen, Wei-Chao Chang, Shih-Hsien Sung, Wen-Chung Yu
(1) Background: A high incidence of intervening sequence (IVS)4+919 G>A mutation with later-onset cardiac phenotype have been reported in a majority of Taiwan Fabry cohorts. Some evidence indicated that conventional biomarkers failed to predict the long-term progression and therapeutic outcome; (2) Methods: In this study, we constructed an induced pluripotent stem cell (iPSC)-based platform from Fabry cardiomyopathy (FC) patients carrying IVS4+919 G>A mutation to screen for potential targets that may help the conventional treatment; (3) Results: The FC-patient-derived iPSC-differentiated cardiomyocytes (FC-iPSC-CMs) carried an expected IVS4+919 G>A genetic mutation and recapitulated several FC characteristics, including low α-galactosidase A enzyme activity and cellular hypertrophy...
May 16, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29651156/efficient-differentiation-of-cardiomyocytes-and-generation-of-calcium-sensor-reporter-lines-from-nonhuman-primate-ipscs
#12
Yongshun Lin, Huimin Liu, Michael Klein, John Ostrominski, So Gun Hong, Ravi Chandra Yada, Guibin Chen, Keron Navarengom, Robin Schwartzbeck, Hong San, Zu-Xi Yu, Chengyu Liu, Kaari Linask, Jeanette Beers, Lugui Qiu, Cynthia E Dunbar, Manfred Boehm, Jizhong Zou
Nonhuman primate (NHP) models are more predictive than rodent models for developing induced pluripotent stem cell (iPSC)-based cell therapy, but robust and reproducible NHP iPSC-cardiomyocyte differentiation protocols are lacking for cardiomyopathies research. We developed a method to differentiate integration-free rhesus macaque iPSCs (RhiPSCs) into cardiomyocytes with >85% purity in 10 days, using fully chemically defined conditions. To enable visualization of intracellular calcium flux in beating cardiomyocytes, we used CRISPR/Cas9 to stably knock-in genetically encoded calcium indicators at the rhesus AAVS1 safe harbor locus...
April 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29551391/modelling-the-pathogenesis-of-myotonic-dystrophy-type-1-cardiac-phenotype-through-human-ipsc-derived-cardiomyocytes
#13
Paola Spitalieri, Rosa V Talarico, Silvia Caioli, Michela Murdocca, Annalucia Serafino, Marco Girasole, Simone Dinarelli, Giovanni Longo, Sabina Pucci, Annalisa Botta, Giuseppe Novelli, Cristina Zona, Ruggiero Mango, Federica Sangiuolo
Myotonic Dystrophy type 1 (DM1) is a multisystemic disease, autosomal dominant, caused by a CTG repeat expansion in DMPK gene. We assessed the appropriateness of patient-specific induced pluripotent stem cell-derived cardiomyocytes (CMs) as a model to recapitulate some aspects of the pathogenetic mechanism involving cardiac manifestations in DM1 patients. Once obtained in vitro, CMs have been characterized for their morphology and their functionality. CMs DM1 show intranuclear foci and transcript markers abnormally spliced respect to WT ones, as well as several irregularities in nuclear morphology, probably caused by an unbalanced lamin A/C ratio...
May 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29456182/mitochondrial-dysfunctions-contribute-to-hypertrophic-cardiomyopathy-in-patient-ipsc-derived-cardiomyocytes-with-mt-rnr2-mutation
#14
Shishi Li, Huaye Pan, Chao Tan, Yaping Sun, Yanrui Song, Xuan Zhang, Wei Yang, Xuexiang Wang, Dan Li, Yu Dai, Qiang Ma, Chenming Xu, Xufen Zhu, Lijun Kang, Yong Fu, Xuejun Xu, Jing Shu, Naiming Zhou, Feng Han, Dajiang Qin, Wendong Huang, Zhong Liu, Qingfeng Yan
Hypertrophic cardiomyopathy (HCM) is the most common cause of sudden cardiac death in young individuals. A potential role of mtDNA mutations in HCM is known. However, the underlying molecular mechanisms linking mtDNA mutations to HCM remain poorly understood due to lack of cell and animal models. Here, we generated induced pluripotent stem cell-derived cardiomyocytes (HCM-iPSC-CMs) from human patients in a maternally inherited HCM family who carry the m.2336T>C mutation in the mitochondrial 16S rRNA gene (MT-RNR2)...
March 13, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29336212/simulated-microgravity-impairs-cardiac-autonomic-neurogenesis-from-neural-crest-cells
#15
Konstantinos E Hatzistergos, Zhijie Jiang, Krystalenia Valasaki, Lauro M Takeuchi, Wayne Balkan, Preethi Atluri, Dieter Saur, Barbara Seidler, Nicholas Tsinoremas, Darcy L DiFede, Joshua M Hare
Microgravity-induced alterations in the autonomic nervous system (ANS) contribute to derangements in both the mechanical and electrophysiological function of the cardiovascular system, leading to severe symptoms in humans following space travel. Because the ANS forms embryonically from neural crest (NC) progenitors, we hypothesized that microgravity can impair NC-derived cardiac structures. Accordingly, we conducted in vitro simulated microgravity experiments employing NC genetic lineage tracing in mice with cKitCreERT2/+ , Isl1nLacZ, and Wnt1-Cre reporter alleles...
June 15, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29193756/investigating-the-cardiac-pathology-of-sco2-mediated-hypertrophic-cardiomyopathy-using-patients-induced-pluripotent-stem-cell-derived-cardiomyocytes
#16
Tova Hallas, Binyamin Eisen, Yuval Shemer, Ronen Ben Jehuda, Lucy N Mekies, Shulamit Naor, Revital Schick, Sivan Eliyahu, Irina Reiter, Eugene Vlodavsky, Yeshayahu Shai Katz, Katrin Õunap, Avraham Lorber, Richard Rodenburg, Hanna Mandel, Mihaela Gherghiceanu, Ofer Binah
Mutations in SCO2 are among the most common causes of COX deficiency, resulting in reduced mitochondrial oxidative ATP production capacity, often leading to hypertrophic cardiomyopathy (HCM). To date, none of the recent pertaining reports provide deep understanding of the SCO2 disease pathophysiology. To investigate the cardiac pathology of the disease, we were the first to generate induced pluripotent stem cell (iPSC)-derived cardiomyocytes (iPSC-CMs) from SCO2-mutated patients. For iPSC generation, we reprogrammed skin fibroblasts from two SCO2 patients and healthy controls...
February 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29127875/derivation-of-the-duchenne-muscular-dystrophy-patient-derived-induced-pluripotent-stem-cell-line-lacking-dmd-exons-49-and-50-ccmi001dmd-a-3-%C3%A2-49-%C3%A2-50
#17
Gabriella Spaltro, Vera Vigorelli, Federica Casalnuovo, Pietro Spinelli, Elisa Castiglioni, Davide Rovina, Stefania Paganini, Marina Di Segni, Patrizia Nigro, Cristina Gervasini, Giulio Pompilio, Aoife Gowran
Duchenne muscular dystrophy (DMD) is caused by abnormalities in the dystrophin gene and is clinically characterised by childhood muscle degeneration and cardiomyopathy. We produced an induced pluripotent stem cell line from a DMD patient's dermal fibroblasts by electroporation with episomal vectors containing: hL-MYC, hLIN28, hSOX2, hKLF4, hOCT3/4. The resultant DMD iPSC line (CCMi001DMD-A-3) displayed iPSC morphology, expressed pluripotency markers, possessed trilineage differentiation potential and was karyotypically normal...
December 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29034900/generation-of-ipsc-line-from-patient-with-arrhythmogenic-right-ventricular-cardiomyopathy-carrying-mutations-in-pkp2-gene
#18
Aleksandr Khudiakov, Daria Kostina, Anna Zlotina, Natalia Yany, Alexey Sergushichev, Tatiana Pervunina, Alexey Tomilin, Anna Kostareva, Anna Malashicheva
Human iPSC line was generated from patient-specific adipose tissue-derived mesenchymal multipotent stromal cells carrying two mutations in plakophilin-2 (PKP2) gene using non-integrative reprogramming method. Reprogramming factors OCT4, KLF4, SOX2, CMYC were delivered using Sendai viruses. Pluripotency was confirmed in vitro using immunofluorescence and RT-PCR analysis and in vivo by teratoma assay. The reported iPSC line could be useful tool for in vitro modeling of arrhythmogenic right ventricular cardiomyopathy...
October 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29034897/generation-of-ipsc-line-from-desmin-related-cardiomyopathy-patient-carrying-splice-site-mutation-of-des-gene
#19
Aleksandr Khudiakov, Daria Kostina, Anna Zlotina, Tatiana Nikulina, Alexey Sergushichev, Alexandra Gudkova, Alexey Tomilin, Anna Malashicheva, Anna Kostareva
Human iPSC line was generated from patient-specific adipose tissue-derived mesenchymal multipotent stromal cells carrying desmin (DES) gene heterozygous splice site mutation using non-integrative reprogramming method. Reprogramming factors OCT4, KLF4, SOX2, CMYC were delivered using Sendai viruses. iPSCs were characterized by sequencing, karyotype analysis, STR analysis, immunocytochemistry, RT-PCR and teratoma formation.
October 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28941705/severe-dcm-phenotype-of-patient-harboring-rbm20-mutation-s635a-can-be-modeled-by-patient-specific-induced-pluripotent-stem-cell-derived-cardiomyocytes
#20
Katrin Streckfuss-Bömeke, Malte Tiburcy, Andrey Fomin, Xiaojing Luo, Wener Li, Claudia Fischer, Cemil Özcelik, Andreas Perrot, Samuel Sossalla, Jan Haas, Ramon Oliveira Vidal, Sabine Rebs, Sara Khadjeh, Benjamin Meder, Stefan Bonn, Wolfgang A Linke, Wolfram-Hubertus Zimmermann, Gerd Hasenfuss, Kaomei Guan
The ability to generate patient-specific induced pluripotent stem cells (iPSCs) provides a unique opportunity for modeling heart disease in vitro. In this study, we generated iPSCs from a patient with dilated cardiomyopathy (DCM) caused by a missense mutation S635A in RNA-binding motif protein 20 (RBM20) and investigated the functionality and cell biology of cardiomyocytes (CMs) derived from patient-specific iPSCs (RBM20-iPSCs). The RBM20-iPSC-CMs showed abnormal distribution of sarcomeric α-actinin and defective calcium handling compared to control-iPSC-CMs, suggesting disorganized myofilament structure and altered calcium machinery in CMs of the RBM20 patient...
December 2017: Journal of Molecular and Cellular Cardiology
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