Researchers at Sanford Burnham Prebys discovered that blocking an energy transfer enzyme shifts mammalian hearts into a regenerative state, promoting regeneration and improving recovery after a heart attack. By modulating heart cell metabolism, scientists can potentially awaken the heart's dormant regenerative abilities.
A groundbreaking study identifies a direct energy route between mitochondria and the nucleus, supporting gene regulation, chromatin remodeling, and cell differentiation. The finding challenges traditional assumptions about energy transfer in cells and has significant implications for understanding health and disease.
Researchers developed CardioNVT, an AI platform for high-throughput cardiomyocyte ploidy assessment. The platform accurately recognizes and segments cardiomyocyte nuclei from DAPI-stained images, enabling the analysis of nuclear volume distribution and inferred ploidy.
Scientists at Linköping University have developed artificial heart muscle cells using organic electronics, opening up new possibilities for prosthetics, heart implants, and sensors. The technology aims to harness the principles of effective electrical signaling in biological cardiac muscle cells.
Researchers have developed a new MRI technique that can track transplanted stem-cell-derived heart cells over long periods. This method allows scientists to visualize where transplanted cells survive, helping to improve therapies for patients with heart damage.
Researchers at Rice University developed a CRISPR-based technique that increases mitochondrial production in heart cells, improving energy levels and pumping contractions. The system successfully boosted mitochondrial function in human cell types, animal models, and adult human heart donor tissue.
Research from Salk Institute scientists shows that DNA's dynamic folding process affects gene regulation and expression, with specific regions unfolding at different rates to regulate cell type-specific functions.
A new study has identified optimized immunosuppressive strategies that allow transplanted iPSC-CMs to survive without immune rejection in non-human primates. The researchers found a triple-drug regimen consisting of methylprednisolone, calcineurin inhibitors, and mycophenolate mofetil reliably prevents acute immune rejection.
A recent study found that Dlc1 deletion affects cardiac differentiation in mouse embryonic stem cells by activating the canonical Wnt pathway. The study showed that Dlc1 deficiency promotes mesoderm lineage specification, leading to the accumulation of cardiac progenitors and blocking their further differentiation into cardiomyocytes.
Researchers at the University of Houston have discovered a potential therapeutic strategy for counteracting muscle wasting in pancreatic cancer by blocking a specific cell pathway. Muscle wasting, also known as cachexia, is a debilitating syndrome affecting 60-85% of patients with pancreatic cancer.
Researchers at UC Davis discovered how desmosomes, which stick cells together, respond to mechanical stress. They found that the intermediate filaments transmit forces to a desmosome protein, causing it to open up and expose a site for signal transmission.
Cryo-optical microscopy captures high-resolution, quantitatively accurate snapshots of dynamic cellular processes at precisely selected timepoints. This technique enables the observation of transient biological events with unprecedented temporal accuracy.
Researchers found that injecting infarcted pig hearts with specially bioengineered cells significantly decreased the infarct area and improved heart function. The therapy worked by stimulating the proliferation of endogenous pig cardiomyocytes, which had previously been unable to divide in adult hearts.
Researchers from Korea University have developed a groundbreaking technique to transform fibroblasts into mature cardiomyocytes, holding promise for regenerative medicine in treating cardiovascular disease. The method combines fibroblast growth factor 4 (FGF4) with vitamin C to accelerate cell maturation and enhance function.
A new gene therapy has reversed the effects of heart failure in a large animal model by increasing blood pumping efficiency and dramatically improving survival rates. The therapy restored critical functions of heart cells and improved heart function on the microscopic level.
Researchers assess 20 years of clinical trials for cell therapy's safety and efficacy in treating heart failure, highlighting progress despite challenges. The field continues to evolve through lessons learned from past studies, with ongoing trials taking novel directions.
A study published in Nature Communications reveals a cellular signaling pathway that promotes heart cell survival. The Mst1-FoxO1-C/EBP-β interaction stimulates protective mechanisms in cardiac myocytes, potentially paving the way for new therapies.
A $1.9 million NIH grant will support research on closing cellular gaps, with implications for wound healing and cellular regeneration therapies. The goal is to develop a theoretical understanding of the process, enabling control over individual factors and potential applications in regenerating heart cells.
Researchers found that omega-3 fatty acid EPA can rescue changes caused by saturated fats in cardiomyocytes, indicating a potential protective effect on heart health. The study highlights the importance of dietary choices in preventing arrhythmias.
Researchers found that a tiny deletion in the titin protein causes developmental defects in embryonic ventricles, leading to increased potassium ion current and abnormal ANP expression. This remodeling leads to impaired atrial contractility and an increased risk of adult atrial fibrillation.
A growth factor called BMP7 has been found to promote cardiomyocyte proliferation and regeneration in both zebrafish and adult mice. This discovery offers a promising new approach to treating heart disease by stimulating cardiac muscle cell regrowth even in later stages of life.
A University of Houston researcher has made a breakthrough discovery about the development of the heart in the womb, revealing that a certain gene deletion can cause a common type of heart muscle disease called left ventricular non-compaction.
A Japanese research team from Shinshu University has successfully tested a novel approach to regenerative heart therapy using human induced pluripotent stem cells. The strategy involves injecting cardiac spheroids into damaged hearts, resulting in improved blood pumping capability and minimal arrhythmias in primate models.
The REACTIVA project aims to establish a new strategy for cardiac regeneration based on reactivating the heart's dormant endogenous mechanism. Researchers will investigate the role of diploid adult cardiomyocytes in cardiac regeneration and use this knowledge to induce their activation.
A study published in Nature Cardiovascular Research reveals that a dynamic synergy between cell types facilitates cardiac renewal, challenging existing paradigms. Targeting the microenvironment rather than specific cell types is key to healing injured hearts.
Researchers uncover the role of IGF2BP2 in responding to cardiac stress, highlighting its potential reversibility and clinical relevance. Elevated IGF2BP2 expression leads to dilated cardiomyopathy, but controlled reduction prompts recovery.
A study by USF Health doctors reveals that reducing mitochondrial protein translation can promote cardiomyocyte proliferation and heart regeneration. This finding holds promise for developing new treatments for heart disease and regrowing damaged hearts.
A study from the University of Wisconsin-Madison and Academia Sinica of Taiwan has successfully combined lab-grown cardiomyocytes with stem-cell-derived endothelial cells to regenerate damaged heart muscle after a heart attack. This combination therapy holds promise for tackling arrhythmia and could lead to improved clinical applications.
Researchers at the University of Alabama at Birmingham have developed a modified messenger RNA that can temporarily induce cardiomyocyte cell division, leading to reduced infarct size and improved heart function. The treatment has shown promise in mouse and pig models without increasing the risk of deadly arrhythmias.
A new computational approach removes movement in heart cell and tissue images, allowing direct monitoring of electro-mechanical coupling. The algorithm mimics a drug's action, giving insight into heart diseases.
Autophagy helps protect cardiomyocytes from damage caused by anthracycline drugs like Doxorubicin. The study found that a protein regulator called ER-phagy alleviates Dox-induced cardiomyopathy, promoting cell survival.
Researchers at EMBL Heidelberg discovered that mutations in the RBM20 gene cause familial DCM by disrupting normal RNA splicing, leading to detrimental cytoplasmic granules. Targeted gene editing via CRISPR-Cas9 and restoring nuclear localisation of RBM20 could improve therapy options for patients.
Researchers developed an AI system, Geneformer, to predict how disruptions in human gene connections cause disease. The model, trained on data from thousands of genes, can identify potential drug targets for diseases like heart disease and cancer.
A study by CNIC researchers reveals that gamma-linolenic acid in breast milk binds to the retinoid X receptor protein, activating gene expression and influencing biological functions. This activation initiates genetic programs that equip mitochondria with the necessary enzymes and proteins to start consuming lipids as energy.
Researchers have discovered a key mechanism behind zebrafish heart regeneration, which has been found to be evolutionary conserved in human and mouse heart muscle cells. The study suggests that manipulating this mechanism could lead to the development of new therapies for cardiovascular diseases.
Researchers at Kyoto University have discovered a genetic mutation that causes lethal arrhythmia in humans. The study found that a novel variant of the CALM2 gene produces robust arrhythmogenicity in human-induced pluripotent stem cell-derived cardiomyocytes.
Researchers at TUM have developed a method to create mini-hearts in Petri dishes using stem cells. The resulting organoids mimic the earliest stages of human heart development and can be used to investigate congenital heart defects, potentially leading to new treatment methods.
Scientists have developed a new technique using tissue-embedded nanoelectronic devices to study the functional maturation of stem-cell derived heart tissues. The research found that co-culturing stem-cell-derived cardiomyocytes with endothelial cells enables faster and more efficient maturation, with significant implications for engine...
Researchers identified a new mutation in the desmoplakin gene that leads to cardiac disease arrhythmogenic cardiomyopathy (ACM). The mutation affects heart muscle cell connections and ion channel function, highlighting the importance of desmosomes in maintaining healthy heart function.
Researchers at RIKEN Center for Integrative Medical Sciences discover genes and individual variations associated with atrial fibrillation, predicting stroke and mortality risk. They also uncover a potential treatment target, ERRg, involved in the pathogenesis of atrial fibrillation.
Researchers have developed a novel portable and low-cost macroscopic mapping system for all-optical cardiac electrophysiology using optogenetics and machine vision cameras. The system can stimulate and image engineered networks of human heart cells, providing insights into cardiac wave function and stability.
A team led by UMass Amherst scientist Margaret Stratton is studying the calcium-sensitive protein CaMKII to understand long-term memory and its potential therapeutic applications. The research has far-reaching implications for treating neurologic diseases, cardiac dysfunction, and infertility.
A new gene therapy approach has been developed to boost the expression of the beta-3 adrenergic receptor in heart cells, improving mitochondrial function and preventing or reversing heart failure in a mouse model of aortic stenosis. This could potentially provide new therapeutic options for patients with this condition.
Researchers at the University of Houston have developed a protocol to reprogram human heart cells into specialized cells that conduct electricity, enabling rhythmic heartbeat and repair diseased hearts. The discovery could lead to improved cardiac function and new pharmacological therapies for heart diseases.
Researchers found that adult heart cells have fewer communication pathways called nuclear pores, which may protect against harmful signals but prevent regeneration. This discovery sheds light on why adult hearts do not regenerate like newborn mice and human hearts.
Researchers at the University of Alabama at Birmingham have identified TBX20 as a vital regulator of direct human cardiac reprogramming. Adding TBX20 to existing cocktails improves contractility and mitochondrial function in reprogrammed heart muscle cells, suggesting a therapeutic potential for TBX20.
Researchers at UNC School of Medicine have discovered a new method for reprogramming scar tissue cells into healthy heart muscle cells, using the protein Ascl1 and its partner Mef2c. This breakthrough could lead to new treatments for heart failure and other cardiovascular diseases.
Researchers discover that oxytocin stimulates stem cells to migrate and develop into cardiomyocytes in zebrafish and human cell cultures. This could lead to the regeneration of damaged hearts after a heart attack. The study found that oxytocin also activates EpiPCs, which can replenish lost cardiomyocytes.
SourceFrontiers·JournalFrontiers in Cell and Developmental Biology·TypeExperimental study·DateSep 30, 2022
Researchers led by Jianyi Zhang aim to find key pathways for reprogramming adult heart muscle cells to proliferate in response to a heart attack, potentially leading to improved heart attack recovery through growth of new heart muscle cells. The grant will fund three projects at UAB and two other universities.
Researchers from Boston Children's Hospital found that aging heart muscle cells accumulate new genetic mutations over time, but lose the ability to repair them. This accumulation of mutations can push the heart past a tipping point into disease.
Researchers discovered distinct genetic mutations in heart failure patients, identifying potential targets for personalized treatment and improving patient care. The study's findings hold enormous potential for rethinking how to treat heart failure by understanding its root causes and the mutations that lead to changes in heart function.
Researchers at Max Delbrück Center for Molecular Medicine found that zebrafish can regenerate heart tissue after injury due to activated fibroblasts. The fibroblasts, which temporarily enter an activated state, read a series of genes responsible for forming proteins, enabling the regeneration process.
Researchers used human heart muscle cells and machine learning to predict arrhythmias in patients, achieving over 90% accuracy. The study lays the foundation for safer and more effective medicines by generating patient risk profiles and drug toxicity testing.
Bioengineers from Harvard John A. Paulson School of Engineering and Applied Sciences create first biohybrid model of human ventricles with helically aligned beating cardiac cells, increasing blood pumping efficiency by up to 50%. The model was made possible using Focused Rotary Jet Spinning (FRJS), a new method of additive textile manu...
Researchers discovered increased cell cycle activity and proliferation in cardiomyocytes after heart surgery, allowing for remuscularization of the left ventricle. The study identified key genes involved in pathways regulating heart development and cell proliferation.
Researchers at the University of Houston have made a groundbreaking discovery in repairing and regenerating heart muscle cells in mice. The technology uses synthetic mRNA to deliver mutated transcription factors, which increases the replication of cardiomyocytes. This finding has the potential to become a powerful clinical strategy for...
Researchers applied scRNA-seq to study hypertrophic cardiomyopathy, identifying novel regulatory interactions and genes driving disease-related swelling. This knowledge can be used to develop new drugs that target underlying causes, reducing disease progression.
Researchers found that bilobalide, an active ingredient in Ginkgo biloba extract, protects the heart from ischemic injuries by preserving ATP generation and enhancing metabolic flux. The study suggests that bilobalide may provide a new herbal therapy for treating myocardial ischemia.
Research finds GNAO1 expression affects calcium ion regulation in cardiomyocytes, leading to cardiac dysfunction and heart failure progression. Suppression of GNAO1 improves pathology in multiple mouse models.
Recent clinical trials showed promising results with cardiosphere-derived cells, improving heart parameters in patients with Duchenne muscular dystrophy. Researchers investigate using cell-derived products like exosomes to boost endogenous repair pathways, while aiming to reverse cardiomyocytes' proliferation limitations.