Articles tagged with Embryonic Stem Cells
Researchers at Stanford University School of Medicine discovered that Wnt-responsive cells in embryoid bodies spontaneously form a primitive streak, which is a hallmark of gastrulation. The study suggests that understanding this process can help direct the differentiation of embryonic stem cells for therapy.
Researchers at Salk Institute boost reprogramming efficiency by over 100fold and cut time in half. They successfully generate patient-specific stem cells from a single human hair, providing a practical alternative to embryonic stem cells.
Dr. Shinya Yamanaka's laboratory has eliminated the need for a virus to introduce genes into adult cells, improving the safety of induced pluripotent stem (iPS) cell technology for regenerative medicine applications.
Research reveals a connection between mitochondrial activity and stem cell differentiation, with high-metabolism cells more prone to forming tumors. Administering a mitochondrial inhibitor reduced teratoma capacity in these cells, suggesting a potential therapeutic strategy.
Researchers at Florida State University discovered dramatic changes in DNA replication order during embryonic stem cell differentiation. The findings bridge a critical knowledge gap, enabling scientists to better understand the complex process of DNA reorganization during cell specialization.
The Broad Institute will create comprehensive epigenomic maps of human cells, including embryonic stem cells and adult stem cells. The five-year grant aims to transform the understanding of gene expression control using cutting-edge technologies like ChIP-Seq and HTBS.
Two UCSF scientists, Yuriy Kirichok and Miguel Ramalho-Santos, received $1.5 million NIH grants to study molecular mechanisms of cell energy production and stem cell specialization. Their research aims to develop new therapies for age-related diseases and regenerative medicine.
UC San Diego assistant bioengineering professor Karen Christman receives a $1.5 million NIH grant to further her research on developing novel multi-layer patterning technique for cell and tissue development. The goal is to control cell fate and generate differentiated cell sources, with potential applications in regenerative medicine.
Researchers have discovered two types of astrocyte support cells generated from a common stem cell-like precursor cell, one effective at promoting nerve regeneration and the other causing neuropathic pain. The study offers a promising approach to repairing spinal cord injuries without inducing pain syndromes.
Researchers found that immune-defense cells influenced by embryonic stem cell-derived cells can prevent transplant rejection in mice. The study's results suggest a potential method for reducing the need for immunosuppressive drugs in human organ and bone marrow transplants.
Researchers discovered that extra chromosome 21 in embryonic stem cells disrupts a key regulating gene called NRSF or REST, leading to developmental changes. The study identifies a specific gene, DYRK1A, on human chromosome 21 responsible for the observed effects.
Researchers at Tel Aviv University have developed a new classification system for identifying pluripotent stem cells in human tissue. By analyzing global gene expression profiles from 150 human stem cell samples, the team discovered a protein-protein network common to pluripotent cells, pointing to a key building block of their transfo...
Researchers at WPI aim to develop a novel method for transforming adult skin cells into stem-like cells using an extract from the African clawed frog. If successful, this could lead to treatments for degenerative diseases like diabetes and Parkinson's.
Scientists discovered the earliest form of human blood stem cells, called hemangioblasts, which can be replicated in unlimited supply using ACE as a marker. This breakthrough could lead to new treatments for heart diseases, anemias, leukemia and autoimmune diseases by mass-producing progenitor blood cells.
A UC Riverside researcher has developed a new method to culture human embryonic stem cells using no animal-derived materials, which could improve the safety and efficiency of stem cell therapies. The method uses a chemically synthesized ECM and results in stem cells with uncompromised pluripotency.
Five UCSF faculty members have received $13.7 million in funding from the California Institute for Regenerative Medicine to explore fundamental questions about embryonic stem cells and develop treatment strategies for conditions such as cancer and liver disease. The researchers will investigate molecular mechanisms, cell specialization...
Researchers found that human embryonic stem cells can trigger an immune response in mice, which could limit their effectiveness for human therapy. The immune system recognizes and rejects the cells, but common antirejection medications may help mitigate this response.
Researchers discovered how microRNAs fit into the map of embryonic stem cell circuitry, providing clues for targeting specific microRNAs to direct an embryonic stem cell into another type of cell. The study also provides a better platform for analyzing microRNA gene expression in cancer and other diseases.
Researchers discover a drug-like molecule called Wnt that can substitute for the cancer-causing gene c-Myc to create embryonic-like stem cells. This breakthrough aims to develop safe and efficient methods for treating diseases such as Parkinson's disease and diabetes using induced pluripotent stem cells.
Dr. Kevin Eggan's breakthrough discovery marks the first time scientists have replicated specific human cells affected by ALS in a laboratory setting. The New York Stem Cell Foundation funded his work and will continue to support him.
Researchers have created a new source of platelets that can be used for transfusions, addressing the risk of blood infections and improving clotting function. The innovative approach involves using a stem cell population already committed to becoming platelets, and blocking enzymes that cause clotting defects.
Scientists investigate how cells make different sugar types and test theories on how sugars influence cell behavior. They aim to develop new ways to instruct cells to behave in particular ways, potentially leading to therapies for heart disease and nerve damage.
New research funded by the Economic and Social Research Council explores standards in stem cell research, balancing scientist autonomy with data comparability. The study suggests that standardizing practices could lead to automation technologies, but also raises concerns about exclusivity and robustness.
Scientists have identified 22 genes that control embryonic stem cell fate, which could accelerate the use of stem cells in therapy and disease treatment. The genes help maintain a memory of stem cell identity, allowing them to correctly read signals that determine cell type.
Researchers successfully developed human embryonic stem cells from a single cell of a 4-cell stage embryo, reducing the need for destruction of the embryo. This breakthrough could lead to more efficient production of hESCs at an earlier stage and alleviate ethical concerns surrounding the technology.
Scientists at WashU Medicine have successfully directed mouse embryonic stem cells to build the heart using the Mesp1 gene, a crucial discovery that may lead to new therapies using human stem cells. The study found that Mesp1 regulates cardiovascular fate restriction and epithelial-mesenchymal transition in differentiating ES cells.
Researchers at Whitehead Institute develop a technique to produce genetically identical induced pluripotent stem (IPS) cells, offering new efficiencies in embryonic stem cell research. This breakthrough allows for the creation of large numbers of IPS cells without genetic variation.
Researchers at Baylor College of Medicine have discovered a novel cellular regulator called Ronin, which maintains embryonic stem cells in their undifferentiated state. This finding suggests an alternative control mechanism to the previously identified proteins Oct4, Sox2, and Nanog.
Researchers at the Genome Institute of Singapore have identified over 3,000 genomic hotspots critical for maintaining embryonic stem cell state. These findings may lead to the development of an inexhaustible source of clinically useful cells for regenerative medicine.
Researchers found that a delicate balance of promotion and inhibition is required to generate diverse types of neurons. By studying motor neuron development in mice, they identified key regulatory factors and discovered a repressor function that blocks alternative pathways.
Scientists have uncovered a cellular signaling mechanism that determines whether an embryo develops into an embryo or a placenta. By manipulating a specific gene, they were able to cause embryonic stem cells to differentiate into trophoblastic stem cells, which give rise to the placenta.
Researchers have found that adult stem cells from Parkinson's patients' noses can differentiate into dopamine-producing brain cells when transplanted into the brain of a rat. This breakthrough has significant implications for treating the debilitating symptoms of Parkinson's disease.
Scientists gather to present research on using mechanics to study and explain biology, highlighting the role of faint pushes and pulls in cellular signaling. The symposium aims to develop fundamental math and mechanics to understand biological processes like embryo development and growth.
The study found that the UK and Israel produced substantially more research in human embryonic stem cells than other fields. In contrast, Australia showed a modest result due to its mixed policy on stem cell research. The US is still the largest producer of research in this field but lags behind when compared to other similar fields.
Researchers at Baylor College of Medicine discovered that caspases, known as 'killer enzymes,' play a crucial role in cell differentiation. By manipulating programmed cell death pathways and caspase targets, scientists may be able to revert somatic cells into embryonic stem cell-like states.
Researchers at Johns Hopkins have established a human cell-based system for studying sickle cell anemia by reprogramming somatic cells to an embryonic stem cell-like state. The new method improves reprogramming efficiency and increases the total number of reprogrammed cells, enabling future studies on blood diseases.
A cross-disciplinary research team from Harvard University, Whitehead Institute, and the Broad Institute of MIT and Harvard has uncovered significant new information about the molecular changes that underlie direct reprogramming. The researchers found that most cells fail to reprogram due to activation of normal 'fail safe' mechanisms.
A new study suggests that embryonic cells giving rise to connective and skeletal tissues of the skull and facial structures do not originate from the neural crest as previously believed. Instead, they come from a distinct thin layer of epidermal epithelial cells next to the neural crest.
Researchers at USC have discovered a method to keep embryonic stem cells undifferentiated by shielding them from differentiation signals. This breakthrough could lead to the large-scale production of specialized cells for future therapeutic use.
The study identifies GATA4 and GATA6 as crucial proteins controlling heart cell formation. Without these proteins, embryonic stem cells fail to develop normal hearts. The findings have significant implications for the production of heart cells from stem cells and may help unravel the mechanisms behind congenital heart disease.
Researchers at Hebrew University of Jerusalem demonstrate the exact mechanism by which embryonic stem cells develop into specific cell types. The study reveals that ES cells express a large proportion of their genome in an 'open and active' state, enabling them to become any cell type before undergoing global genetic silencing.
The UCI Sue and Bill Gross Stem Cell Research Center will house up to 26 researchers, a master's program in biotechnology, and programs educating patients and the public. The facility is expected to advance stem cell therapies for treating spinal cord injuries and other diseases.
Researchers at Baylor College of Medicine found that the association between Nanog and Oct4 proteins with transcription repression complexes determines embryonic stem cell fate. The complex, called NODE, contains histone deacetylases that control gene expression.
Researchers at UC Berkeley developed a method to image carbohydrates inside living cells using glow-in-the-dark fish. This technique allows study of carbohydrate coating on cell surface, shedding light on stem cell development and disease markers.
Scientists at UCLA have successfully differentiated induced pluripotent stem cells (iPS cells) into three types of cardiovascular cells, including cardiomyocytes, endothelial cells, and vascular smooth muscle cells. This discovery could potentially lead to new therapies for heart attacks, atherosclerosis, and other cardiovascular disea...
Researchers identified adult stem cells in the pituitary gland of mice that can adapt to traumatic stress or normal life changes. These cells are distinct from embryonic stem cells and have a more limited repertoire, but still play a crucial role in maintaining the organ's function.
Researchers at University Medical Center Utrecht have successfully grown large numbers of stem cells from adult human hearts into new heart muscle cells. The stem cells can be used to study cardiac arrhythmia, test new medicines, and potentially repair damaged heart tissue. This breakthrough in stem cell research could move forward res...
Researchers are investigating whether embryonic stem cell-derived tissues can be accepted by the immune system, paving the way for new treatments. The study suggests that ES cells display an underlying immune privilege, which could be harnessed to promote regulatory T-cell activity and suppress immune activation.
Researchers develop biodegradable microspheres to deliver molecules directly into embryonic stem cells, enhancing efficient and pure differentiation. The method, funded by the National Science Foundation, showed improved results in controlling signaling events and promoting specific cell types.
Researchers at Stanford University School of Medicine have successfully created cancer stem cells in a laboratory setting, shedding new light on the origins of these rare and difficult-to-study cells. The breakthrough could lead to new ways of understanding how cancer cells form and developing more effective treatments.
Researchers found a shared genetic expression pattern between embryonic stem cells and human cancer cells, which may have significant implications for cancer therapeutics. A gene module map was created to relate transcriptional programs in different cell types.
Researchers successfully transplanted dopamine-producing neurons from reprogrammed skin cells into adult rat brains, reducing behavioral symptoms related to low dopamine levels. The study demonstrates the therapeutic potential of reprogrammed cells in treating Parkinson's disease.
Recent advances in mass spectrometry have expanded knowledge of protein networks inside cells and their regulation. Researchers successfully identified over 5,000 proteins in embryonic stem cells using mass spectrometry, creating the largest quantified protein map to date.
Scientists have discovered a way to genetically manipulate embryonic stem cells into insulin-producing pancreatic tissue, potentially treating type-1 and type-2 diabetes. The team found that the transcription factor PAX4 encouraged high numbers of stem cells to become beta cells with insulin-producing capabilities.
Researchers from UCLA used high-resolution technique array CGH to examine the genome of two human embryonic stem cell lines, finding differences in gene numbers that could impact disease susceptibility and therapeutic applications. These differences can provide a unique genetic fingerprint for each line, enabling researchers to choose ...
A study published in Nature reveals that the protein REST maintains self-renewal and pluripotency in embryonic stem cells by suppressing a specific microRNA called miR-21. This discovery has implications for regenerative medicine and treating diseases, including pediatric brain cancer.
A new stem cell technique has been developed by UC Irvine researchers, which blends two existing methods to improve cell survival rates and increase the efficiency of inserting DNA into cells. This approach is up to 100 times more efficient than current methods at producing human embryonic stem cells with desired genetic alterations.
Researchers have made a groundbreaking discovery about the origin of blood stem cells, finding that they are generated in the placenta. The study's findings may allow for the growth of blood stem cells in cell culture, potentially leading to new treatments for diseases like leukemia and aplastic anemia. By understanding how blood stem ...
A research team led by the Genome Institute of Singapore found that a molecular alliance between specific proteins known as transcription factors sustains the pluripotent embryonic stem cell state. The team identified Klf2 and Klf5 as redundant molecules that substitute for Klf4, maintaining the ES cell state.
Researchers at Stanford University School of Medicine used human embryonic stem cells to generate neural cells that helped repair damage in the brains of rats and improved their physical abilities. The study showed promising results, with the transplanted cells forming only three families of neural cells and not forming tumors.