Although stem cell therapy is promising for repairing damaged cardiac tissue and improving heart function, there are safety concerns, especially regarding the risk of arrhythmias, which can be life threatening. To address this issue, we propose to develop a novel screening system to evaluate arrhythmic risk associated with stem cell therapy using a high-throughput multielectrode array system that can measure conduction velocity and action potential duration in cardiomyocytes co-cultured with different types of stem cells, such as mesenchymal stem cells, skeletal myoblasts, and resident cardiac stem cells. We will assess the arrhythmic potential of each of these types of stem cells under normoxic and hypoxic conditions, with/without application of oxidative stress or catecholamines. We hypothesize that these methods will prove to be an effective way to screen for arrhythmic risk of cardiac stem cell therapy. Ultimately, our approach can potentially be personalized to develop a robust screening protocol in order to identify which stem cell type carries the least amount of risk for arrhythmia. This system will have great clinical benefit to improve the risk/benefit ratio of human stem cell therapy for heart disease.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4469494 | PMC |
| http://dx.doi.org/10.1016/j.mehy.2015.01.015 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The effect of a single dose of Mk-801 use on adult brain tissue after an experimental head trauma model applied in immature rats.
Neurol Res
January 2025
Department of Physiology, Faculty of Medicine, Izmir Democracy University, Izmır, Turkey.
Objective: Within the scope of this research, the long-term effects of experimental blunt head trauma on immature rats and MK-801 administered acutely after trauma on the brain tissue will be examined. In addition, the impact of trauma and MK-801 on Nestin and CD133, which are essential stem cells, will be evaluated by immunohistochemical and ELISA methods.
Methods: In this study, the contusion trauma model was used.
Influence of HLA-B Leader (-21M/T) Dimorphism With Bw4/Bw6 Epitopes on Graft Versus Host Disease After Allogenic Haematopoietic Stem Cell Transplantation in North Indians.
Int J Immunogenet
January 2025
Department of Clinical Haematology and Medical Oncology, Postgraduate Institute of Medical Education & Research, Chandigarh, India.
High degree of variability in human leukocyte antigens (HLAs) system restricts availability of histocompatible HLA-matched-related donors, thus increasing reliance on worldwide bone marrow registries network. Nevertheless, due to limited coverage/accessibility/affordability of some ethnicities in these registries, haploidentical haematopoietic stem cell transplantation (HSCT) emerged as an alternative option, though with allorecognition-mediated graft versus host disease (GvHD) (>40% cases). A dimorphism [-21 methionine (M) or threonine (T)] in HLA-B leader peptide (exon 1) which differentially influences its HLA-E binding, plausibly regulates natural killer cell functionality, affecting GvHD vulnerability and clinically in practice for donor selection.
View Article and Find Full Text PDFCombined use of cleft and truncated triangle signs helps improve the preoperative MRI diagnosis of lateral meniscus posterior root tears in patients with ACL injuries.
Knee Surg Sports Traumatol Arthrosc
January 2025
Department of Joint Surgery and Sports Medicine, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Tokyo, Japan.
Purpose: This study aimed to investigate whether combining the analysis of different magnetic resonance imaging (MRI) signs enhances the diagnostic accuracy of lateral meniscus posterior root tears (LMPRTs) in patients with anterior cruciate ligament (ACL) injuries. We hypothesised that analysing the cleft, ghost and truncated triangle signs and lateral meniscus extrusion (LME) measurement together would improve the preoperative MRI-based diagnosis of LMPRTs.
Methods: This retrospective study used prospectively collected registry data from two academic centres, including patients undergoing primary or revision ACL reconstruction (ACLR) and LMPRT repair.
Osteochondral Tissue Engineering: Scaffold Materials, Fabrication Techniques and Applications.
Biotechnol J
January 2025
Cancer Hospital of Dalian University of Technology, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian, China.
Osteochondral damage, caused by trauma, tumors, or degenerative diseases, presents a major challenge due to the limited self-repair capacity of the tissue. Traditional treatments often result in significant trauma and unpredictable outcomes. Recent advances in bone/cartilage tissue engineering, particularly in scaffold materials and fabrication technologies, offer promising solutions for osteochondral regeneration.
View Article and Find Full Text PDFCharacterization of Hospital Admissions During Immune Checkpoint Inhibitor Therapy: Insights From the ICOG Study.
Cancer Med
February 2025
Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany.
Introduction: Immune checkpoint inhibitors (ICI) have improved the therapeutic arsenal in outpatient oncology care; however, data on necessity of hospitalizations associated with immune-related adverse events (irAEs) are scarce. Here, we characterized hospitalizations of patients undergoing ICI, from the prospective cohort study of the immune cooperative oncology group (ICOG) Hannover.
Methods: Between 12/2019 and 06/2022, 237 patients were included.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!