Articles tagged with Embryonic Stem Cells
Researchers at Kyoto University have successfully reconstructed the human segmentation clock using induced pluripotent stem cells (iPSCs), a key focus of embryonic development research. The study reveals novel genetic components and oscillation patterns of the clock, which controls the formation of organs and tissues.
Researchers at Karolinska Institutet have developed a new method to refine the production of retinal cells from embryonic stem cells using CRISPR/Cas9 gene editing. The modified cells can hide from the immune system, reducing the risk of rejection and potentially leading to a new treatment for age-related macular degeneration.
Researchers found that immune cells from early development, called natural killer cells, are more effective in treating cancer. These cells can be developed from human pluripotent stem cells, providing a new supply of immune cells for immunotherapy.
Researchers developed a novel computational tool called Millefy to visualize heterogeneity in RNA biology between single cells. The study reveals that even small differences in RNA processing can significantly impact cell behavior, offering new insights into why patients with the same disease respond differently.
Scientists have successfully turned back the biological hands of time by coaxing adult human cells to revert to a primitive state, unlocking their potential to replace and repair damaged blood vessels in the retina. The findings advance regenerative medicine techniques aimed at reversing diabetic retinopathy.
Researchers have created a new stem-cell model that can grow somites, the blocks of tissue that form vertebrae and muscles in embryos. This model, called gastruloids, has been developed to study complex processes in embryonic development and may enable testing of new drugs for developmental defects.
Cancer cells can change their developmental identity, enabling them to spread and evade the immune system. Researchers identified specific cell types involved in lung development that are also present in cancer metastases.
A recent study explored how some mammals postpone embryonic development to await better conditions. The research, led by Abdiasis Hussein, advances understanding of delayed embryo implantation and suggests a link to rapidly dividing cells in tumors.
Researchers at NUS Medicine have discovered a way to induce totipotency in pluripotent embryonic stem cells, allowing for maximum cell engineering and therapeutic potential. This breakthrough provides new avenues for regenerative medicine, particularly in cell replacement therapies for debilitating diseases.
A study by University of Michigan researchers sheds light on the role of WDR5 and p53 proteins in influencing stem cell fate, with implications for cancer research and potential treatments for heart disease. The team found that inducing a short delay in WDR5 expression steered embryonic stem cells towards different tissue types.
Scientists identified 3 metabolites that can re-program pluripotent cells into totipotent-like cells, opening up possibilities for studying early developmental events and cell replacement therapies.
Scientists have unveiled the first lab-dish models of human spine development, providing evidence of the segmentation clock in humans. The models allow for the study of early spine development and could lead to new treatments for conditions such as congenital scoliosis.
Researchers have made significant progress in generating functional hematopoietic stem cells from human pluripotent stem cells. Key findings include the role of transcription factors HOX and GATA proteins in regulating hematopoiesis, which may lead to breakthroughs in treating blood cancers and other disorders.
A new international project will utilize pluripotent stem cells to preserve bird genetic resources. The project, led by Kazan Federal University, will analyze genomes and study genetic mechanisms of suspended embryogenesis in birds.
The study reveals how embryonic cells may be deviated from a default state and awoken to new developmental possibilities during gastrulation. Researchers used scNMT-seq and MOFA computational methods to analyze gene expression, DNA methylation, and chromatin accessibility in single cells from mouse embryos.
A Freiburg research team has cracked the code on how embryonic stem cells determine which cell types to develop into. They found that genes controlling cell differentiation are selectively used and that transcription factors like Eomes and Brachyury play a key role in this process.
A team from the University of Tsukuba identifies a novel silencing component called TAF-Iα that plays a crucial role in retroviral silencing during reprogramming. This discovery enables the production of high-quality induced pluripotent stem cells (iPSCs) for regenerative medicine and stem cell therapy applications.
Scientists at Gladstone Institutes used a machine-learning approach to discover new ways of controlling the spatial organization of induced pluripotent stem cells. The model predicted patterns that could lead to the creation of functional organs for research or therapeutic purposes, and was found to be correct in simulating desired arr...
Researchers identified a disruptive relationship between excess nuclear RNA levels and PRC2 function, highlighting the importance of balancing nuclear RNA levels. Excess pA+ RNA hampers PRC2 function through sequestration from DNA.
Researchers at HUG-CELL identified a microRNA inhibitor that reduces tumor size and improves survival in mice with aggressive brain tumors. The synthetic miR-367 inhibitor prevents the regulation of proteins involved in cell growth, leading to an attenuation of tumor aggressiveness.
Scientists at Columbia University have successfully grown fully functional lungs in mouse embryos using transplanted stem cells. The innovative technique has shown promising results, suggesting that it may eventually be possible to generate human lungs in animals for transplantation and studying new treatments.
Researchers at Rice University discovered dynamic molecular signaling waves that prompt cell differentiation and trigger the formation of germ layers in human embryos. The study counters previous theories by showing gradients do not exist in stem-cell colonies and the process is more dynamic than previously appreciated.
Researchers at Salk Institute create mouse blastocyst-like structures from single cultured cells, mimicking the natural developmental process. The blastoids can form a ball with an inner and outer layer, accumulating proteins that induce expression of proteins to build what could eventually become a placenta.
Bioscientists at Rice University have created a system to form all major cell types of ectoderm in a culture dish, allowing for the most comprehensive analysis yet of signaling pathways that drive patterning. The balance between two signaling pathways, BMP and Wnt, is critical, and cells can take more than one road to get there.
Researchers found that small changes in SOX2 and OCT4 levels impact embryonic stem cell fate during the G1 phase. Elevated OCT4 levels direct cells towards neuronal and non-neuronal types, while increased SOX2 pushes them towards neuronal-type cells.
Researchers at the Center for Cell-Based Therapy identified microRNAs involved in pluripotency maintenance and cell differentiation. The study found that these molecules play a crucial role in regulating ESC behavior, with some miRNAs contributing to both pluripotency and differentiation.
Researchers at UC Riverside are part of a US EPA plan to eliminate animal testing by 2035. They're developing a way to test chemicals using lab-grown human tissue, not live animals, to identify musculoskeletal birth defects. This non-animal approach will help reduce animal suffering and improve the accuracy of toxicity predictions.
Researchers developed a two-layer microchip that enables long-term tracking of stem cell development, overcoming technical challenges. The device allows for high-resolution imaging and manipulation of stem cells, enabling better control and understanding of differentiation processes.
Researchers have unraveled a mechanism to reactivate 'back-up genes' on the inactive X chromosome, which could help treat Rett syndrome and other X-linked disorders. The study found that different genes require varying amounts of time to become active again, with location and proteins playing key roles.
Researchers at UNIGE have discovered that brain progenitor cells can recover their past skills and rejuvenate when transplanted into a young mouse embryo. This finding sheds light on how the brain constructs itself and opens up new possibilities for cortical neuroregeneration.
Researchers have successfully generated 3D blastocyst-like structures from mouse stem cells, exhibiting totipotency and inducing proper changes in the uterus after implantation. The study paves the way for improved basic research in embryogenesis and fertility, as well as regenerative medicine.
Boundary cells in zebrafish hindbrain sense mechanical forces to regulate progenitor stem cells and differentiated neurons. The activity of Yap/Taz-TEAD proteins is essential for maintaining boundary cells as proliferating progenitors.
Rockefeller scientists created a 3D model of early embryonic tissues using stem cells, allowing them to simulate developmental processes in time and space. The researchers successfully demonstrated the utility of their tool by inducing symmetry breaking, a fundamental process driving embryonic development.
Scientists have developed a method to grow human embryonic stem cells in culture, mimicking the dynamic range of morphogen concentrations that tell stem cells what type of specialized cell and tissue to become. This breakthrough has potential applications in regenerative medicine, drug testing, and understanding developmental biology.
Researchers at Far Eastern Federal University have discovered chromophobe cells that contribute to human tooth development. The findings provide a basis for developing bioengineering therapies in dentistry and gastroenterology, potentially leading to more effective treatments with longer-lasting implants.
Osaka University researchers discovered a key regulatory mechanism in the development of normal pluripotent embryonic cells using the Hippo pathway. They found that TEAD and YAP proteins support pluripotency in blastocysts by activating cell competition, leading to elimination of low-potential cells.
Researchers at Temple University Health System have discovered that a small RNA molecule can reactivate heart cell proliferation and improve heart function in mice with severe heart attacks. The study, published in Circulation Research, shows that miR-294 treatment reawakens an embryonic signaling program in adult heart cells.
A new study published in Stem Cell Reports found that human embryonic stem cells can commit to a specific cell type within hours, rather than days, and this commitment is irreversible. The research also discovered that chromosome architecture can be remodeled locally and rapidly without dismantling the entire nucleus.
Researchers at CNIO discover cohesin's new functions in pluripotency and genome architecture, shedding light on cancer development and rare diseases. Cohesin-SA2 regulates Polycomb domains, maintaining chromatin organization.
A recent study has improved upon Nobel Laureate Prof. Shinya Yamanaka's cellular reprogramming method, reducing the waiting period from 3-4 weeks to approximately a week. The new method also increases the success rate up to ten-fold, making it easier to apply in clinical settings.
A novel therapy with a dual mechanism of action has been shown to reactivate the anti-cancer alarm system, eliminating cancer stem cells and activating the immune system. Combining LIF-neutralizing antibodies with immunotherapy promotes tumor regression, triggers immune memory, and increases survival in animal models.
A new technique developed by researchers at the University of Illinois Chicago and the University of Pennsylvania uses stem cells and flexible implantable bone-stabilizing plates to help speed up bone healing. By mimicking embryonic conditions, this technique encourages stem cells to differentiate into cartilage and bone.
Scientists have successfully derived Expanded Potential Stem Cells (EPSCs) from both pig and human cells, offering new opportunities to study human development and regenerative medicine. These EPSCs possess developmental potency, enabling researchers to investigate pregnancy complications and develop treatments for diseases.
Researchers discovered that DNA in early zygote is organized into Lamina Associated Domains (LADs) before gene activation, revealing a fundamental mechanism behind cell type identity. This discovery provides new insights into the development of an entire organism from a single fertilized oocyte.
Researchers at Mount Sinai have discovered Cdx2 cells, a type of placental stem cell, that can regenerate healthy heart cells after heart attacks in animal models. These cells have the ability to target injury sites and avoid rejection by the host immune system, making them promising for regenerative therapy.
Scientists have developed a new test to examine a drug's embryotoxicity in cell cultures instead of animals. The test uses human liver tissue and embryoid bodies, allowing for early detection of substances harmful to embryos.
Scientists at Kyoto University have found a 'wake-up' signal that can unlock brain cells' regenerative potential. The discovery, published in Genes & Development, reveals the ebb and flow of gene expression that activates dormant neural stem cells.
Researchers at Hebrew University have discovered a way to transform skin cells into the three major stem cell types that comprise early-stage embryos. This breakthrough has significant implications for modelling embryonic disease, placental dysfunctions, and infertility problems by creating human embryos in a petri dish.
Researchers at Monash University have identified two new epigenetic regulators, TAF5L and TAF6L, that maintain the self-renewal of embryonic stem cells by activating the oncogene c-Myc. These findings have significant potential for regenerative biology and cancer research.
A new study compared traditional Illumina platforms to an alternative BGISEQ-500 short-read sequencing platform for single-cell transcriptomics. The authors found that BGISEQ-500 was highly comparable in sensitivity, accuracy, and reproducibility of detected RNA molecules.
A new CRISPR-Cas3 tool has been developed for long-range DNA editing in human cells, allowing scientists to target and delete large expanses of DNA. This technique harnesses a different type of CRISPR system than the widely used Cas9 tools, enabling precise control over DNA degradation.
A team of researchers has shown that a single population of stem cells in mice generates new neurons throughout their lifetime, contributing to embryonic, early postnatal, and adult neurogenesis in the hippocampus. This finding suggests that the brain has the capacity for continuous improvement and adaptation.
Scientists at Duke-NUS Medical School have made a breakthrough in heart muscle regeneration by priming stem cells to become heart tissues. The novel method uses the laminin protein to promote differentiation of human embryonic stem cells into cardiovascular precursor cells, which can then differentiate into cardiac muscle fibers.
Researchers discovered that adult tissues maintain a catalog of genes active in embryonic development, which can be accessed under certain conditions. This finding has major implications for regenerative medicine, as cells from patients may be coaxed into an earlier stage of development to replace diseased or failing organs.
Researchers at D'Or Institute improve human brain organoid cultivation protocol to display regionalized brain structures and retinal pigmented cells. The team's advancements aim to mimic later stages of brain development, enabling studies on neurological diseases and drug effects.
Researchers found that stem cells are sensitive to the speed of signaling molecule delivery, not just its concentration. This discovery highlights the dynamic interactions between morphogens and cells during embryonic development, allowing for more precise control over cell fates and potentially leading to new ways to drive cellular di...
Researchers from the Center for Genomic Regulation have discovered a direct link between nutrient metabolism and gene regulation in embryonic stem cells. The AHCY protein is found to be a key activator of genes involved in controlling stem cell proliferation, with implications for understanding embryonic growth and infertility.
Researchers at Karolinska Institutet discovered previously unknown cellular stages of fetal development using gene analysis on individual cells from early mouse embryos. The study revealed a molecular road-map of the events that control cell differentiation, shedding new light on the early development of the embryo.
Researchers discovered that the WNT signaling pathway is more dynamic than previously thought, with different cell types responding differently to the same signals. They found that cells can tune the dynamics of this pathway to perform different functions in different contexts.
Researchers found that nicotine disrupts cell-to-cell communication, decreases cell survival and alters gene expression in human embryonic stem cells. This study offers new insights into the effects of nicotine on individual organs and cells within the developing fetus.