Articles tagged with Embryonic Stem Cells
UCLA scientists have been awarded $4 million in seed grants to fund innovative research projects on human embryonic stem cells. The Institute for Stem Cell Biology and Medicine at UCLA will utilize these funds to explore various aspects of human embryonic development, immune response, and cell differentiation.
Researchers have discovered that aged, fertilization-failure mouse oocytes can be used as cytoplasmic donors in nuclear transfer procedures, paving the way for future human egg use. This breakthrough could optimize cloning protocols and reduce waste of discarded IVF eggs.
Six UCI scientists received CIRM SEED grants to study human embryonic stem cells in various diseases, including muscular dystrophy and mitochondrial dysfunction. The research aims to develop therapies for patients suffering from these conditions and improve the therapeutic potential of human embryonic stem cells.
Researchers at the University of Pennsylvania have successfully used uniparental embryonic stem cells to repopulate a damaged organ with healthy cells in adult mice. This breakthrough could provide a less controversial alternative to traditional embryonic stem cell therapy, and may offer therapeutic benefits for both males and females.
The California Institute for Regenerative Medicine (CIRM) has awarded $5.9 million to the Burnham Institute for Medical Research to launch innovative stem cell research projects. The funding will support studies in heart disease, Parkinson's, cancer, and neural development, among other areas.
Stem cells in fruit fly gut use Notch signaling to replenish specific cell types, with Delta protein controlling cell fate and division. This finding transforms basic understanding of stem cells and could prove valuable in cancer research.
Scientists at Cold Spring Harbor Laboratory have successfully used uniparental embryonic stem cells to replace blood stem cells in immunocompromised adult mice. The study demonstrates the potential of androgenetic as well as parthenogenetic ES cells for regenerative medicine applications.
Researchers at Rockefeller University have cloned healthy mice from adult stem cells, a breakthrough that could lead to new therapies and treatments. The successful cloning rate was 1.6% when using female skin stem cells, but higher when using male stem cells, opening up potential for future human applications.
Researchers at Rockefeller University have successfully cloned mice from adult skin stem cells using nuclear transfer, with a success rate of 19 out of 100 attempts. This breakthrough could lead to the creation of personalized embryonic stem cell lines for disease research and treatment.
Researchers discovered that ceramide helps stem cells organize into primitive ectoderm, which further differentiates into embryo tissues. The lipid's presence is essential for cell polarity and differentiation.
Cambridge scientists have discovered that differences between embryonic cells appear earlier than previously thought, before the fourth cleavage of the embryo. The study suggests that manipulating epigenetic information in histone H3 can influence cell fate determination.
A study of the retinoblastoma gene found that it is essential for placenta development and may also contribute to miscarriages. The research used transgenic mice to disable the gene and observe its effects on embryonic development.
Researchers have isolated broad potential stem cells from amniotic fluid, which can give rise to various specialized cell types. These cells, named amniotic fluid-derived stem (AFS) cells, may represent an intermediate stage between embryonic and adult stem cells.
Researchers discovered that Rb is required for the maintenance of trophoblast stem cell population, which is critical for forming the placenta. Specific loss of Rb in trophoblast stem cells leads to overexpansion of trophoblast cells and aberrant placental formation.
Researchers have identified genes and signaling pathways that enable zebrafish to regrow their tail fins. The study suggests that humans may also have untapped regenerative powers hidden in their genes, potentially leading to new treatments for human injuries.
Researchers have created mouse embryonic stem cells that can be transplanted without rejection due to genetic matching with the recipient's immune system. The cells were generated from unfertilized eggs through a series of chemical treatments and identified using genetic typing.
An independent committee concluded that journal editors at Science went above and beyond existing procedures to verify fraudulent stem-cell research articles, but the committee found that the cachet of publishing in Science can be an incentive not to follow the rules. The committee proposed developing a procedure for identifying high-r...
Massachusetts General Hospital researchers have discovered a master cardiac stem cell capable of differentiating into three types of heart cells. This finding offers new prospects for drug discovery and genetically based models of human disease, as well as a novel strategy for the regeneration of cardiac muscle and associated structures.
A type of stem cell has been identified that gives rise to both myocardial cells and vascular smooth muscle cells, challenging previous notions of how the heart develops. This discovery could lead to the development of new treatments for congenital heart defects and damage caused by heart attacks.
Researchers discover master cardiac stem cells capable of producing all three major tissues of the mammalian heart. The findings challenge traditional understanding of heart development and may hold promise for cardiac stem cell therapies.
Researchers at Oregon State University developed a new method to identify DNA-binding transcription factors that help steer stem cells. The study, announced in Proceedings of the National Academy of Sciences, used mouse embryonic spinal cord as a model and identified the subset of genes involved in producing various cell types.
Researchers have proven that tumours can be prevented from forming when embryonic stem cells are transplanted into laboratory animals. The team used microencapsulation technology to achieve this result, paving the way for vital therapies for disorders like diabetes.
Researchers at Scripps Research Institute have discovered a synthetic compound called pluripotin that maintains the youthfulness of stem cells without the need for feeder cells. This breakthrough accelerates stem cell research and holds promise for developing new therapies for diseases like cancer and Parkinson's.
Researchers have successfully cloned mice using fully differentiated blood cells, disproving the need for adult stem cells in the process. The study found that these cells were more efficient than stem cells or progenitor cells, paving the way for new approaches to animal cloning.
Researchers at Duke University Medical Center identified the SOX2 gene as crucial for taste bud development, revealing its role in stem cell transformation and cellular differentiation. The findings may lead to a better understanding of developmental disorders and provide insights into how stem cells operate in adults.
Researchers at UW-Madison have developed DNA-coated stents that release gene-based therapy to prevent restenosis, a common problem with metal stents. Additionally, they've created microwell arrays to grow undifferentiated human embryonic stem cells with defined sizes and shapes.
Researchers at Michigan State University have identified 5,331 unique genes in the human egg, which may hold the key to understanding fertility issues and developing new stem cell therapies. The discovery could also pave the way for the creation of healthy stem cells without the need for fertilized embryos.
Researchers from ISREC discovered that the Nodal protein, involved in embryonic development, maintains stem cells while also providing cues for their differentiation. This understanding is crucial for coaxing stem cells to grow into specific tissues outside the body and may hold the key to controlling cancerous stem cell behavior.
Researchers have successfully induced differentiated adult cells to behave like embryonic stem cells using only four factors. This breakthrough enables the creation of pluripotent cells directly from a patient's own cells, potentially revolutionizing the treatment of diseases such as Parkinson's disease and diabetes.
Researchers successfully delivered a gene encoding a bioengineered cell-surface protein to heart muscle cells of pigs, mimicking the combined action of several proteins involved in maintaining a normal heartbeat. The study shows promise for replacing electronic pacemakers with a more permanent and reliable biological alternative.
Researchers have successfully induced differentiated adult cells to behave like embryonic stem cells using only four factors. The discovery could revolutionize the treatment of diseases such as Parkinson's and diabetes by providing a direct source of pluripotent cells from patients' own cells.
Researchers at UCLA compared neural stem cells grown in the lab to those derived from donated fetal tissue and found the former expressed lower levels of a metabolic gene called CPT 1A. This abnormality may impact the effectiveness of these stem cells in treating diseases such as Parkinson's and Alzheimer's.
Researchers have found that human embryonic stem cells exhibit a distinct pattern of DNA methylation, differing from adult cells and cancer cells. This discovery may hinder the success of therapeutic cloning by requiring epigenetic reprogramming of adult cells.
The Tri-Institutional Stem Cell Initiative has approved $6.7 million in funding for 17 stem cell research projects, exploring basic biology and therapeutic potential of human and model organism-derived stem cells. The grants support collaborative research across three institutions, including Memorial Sloan-Kettering Cancer Center.
Researchers from University of California, Irvine, found that transplanted human embryonic stem cells do not cause harm and can be used to treat acute spinal cord injuries. The study confirmed previous findings that replacing a cell type lost after injury improves outcomes in rodents.
Researchers have successfully created sperm in a laboratory using embryonic stem cells, demonstrating their viability in producing viable offspring. The study opens up new avenues for investigating mechanisms involved in sperm production and developing new treatment strategies for infertility.
A recent study published in Nature reveals that neural crest cell formation occurs earlier than previously thought, independent of tissue interactions. This breakthrough could lead to a better understanding of developmental disorders such as cleft palate and heart valve malformations.
Scientists have successfully produced sperm from embryonic stem cells, paving the way for new treatments for male infertility. The breakthrough, led by Karim Nayernia at Newcastle University, used mice and produced seven babies, six of which lived to adulthood.
Embryonic stem cells diversify to form various neural structures when cultured on different surfaces, with laminin influencing specific pathways crucial for brain cell generation and survival. Laminin's role in directing stem cells to become specialized neurons sheds light on fundamental mysteries of brain development.
Researchers successfully converted human embryonic stem cells into mature T-cells, a key step towards gene therapy for HIV and other diseases. The breakthrough could lead to the development of new treatments for severe combined immunodeficiency and other conditions.
Researchers from Gladstone Institutes have gained a better understanding of the use of stem cells to generate replacement cells for damaged heart muscle and vessels. The study highlights several challenges ahead, including guiding stem cells into cardiac lineage and integrating them safely within patients' heart tissue.
Researchers at the Salk Institute for Biological Studies have discovered a DNA-binding protein called Nanog that coaxes mouse ES cells back into an immature state, regaining pluripotency. This finding has significant implications for regenerative medicine and could potentially be used to regenerate stem cells from differentiated cells.
Researchers created a 'cookbook recipe' to restore lost nerve function using mouse embryonic stem cells, growth factors, and specific agents. The approach showed promising results in recovering paralysis in treated rats, with some regaining muscle strength and mobility.
Scientists successfully transplanted motor neurons into paralyzed rats, restoring function and improving hind limb grip strength. The study demonstrates the potential for treating spinal cord injuries and diseases like ALS.
The study found that DNA repair pathways work at different times during cell development, with homologous recombination active in the first half and non-homologous end joining taking over later. This timing is crucial for the development of various types of cancers.
Researchers have discovered that frog proteins can rescue mouse embryonic stem cells from dividing without limit, highlighting an ancient mechanism that may hold the key to understanding human disease. The study also shows that mammals have adopted this function from amphibians, suggesting a long history of stem cell regulation.
Researchers successfully mapped the regulatory circuitry of human embryonic stem cells using microarray technology. The study reveals that Polycomb group proteins play a crucial role in repressing genes essential for later development, leading to uncontrolled growth when these genes are lost.
Researchers at the Broad Institute found an unusual molecular structure near developmental genes that enables embryonic stem cells to maintain their unique plasticity. This 'bivalent domain' acts as a kind of gene gatekeeper, controlling the expression of crucial genes in early development.
Researchers found that Polycomb proteins repress developmental genes, while bivalent domains mark key genes with both repressive and activating characteristics. This helps explain embryonic stem cell stability and differentiation potential.
Human embryonic stem cells (hESCs) can be grown using a simple mix called hESC cocktail, or HESCO, containing purified human factors. The recipe maintains normal cell chromosome profiles and supports differentiation into all three basic cell lineages.
University of Wisconsin-Madison researchers have created a liquid crystal-based cell culture system to control the uncontrolled differentiation of human embryonic stem cells. The system uses mechanical strain to guide stem cells along well-defined lineages, enabling real-time monitoring and reducing the mixture of cells of little medic...
Researchers discovered that the normal form of mad cow protein promotes neurogenesis by helping precursor cells differentiate into mature neurons. The study found that increased levels of PrP accelerate neuron production, while decreased levels slow it down.
Two genes, Lmx1a and Msx1, play a critical role in forming cerebral dopamine cells. This discovery can be used to control the formation of dopamine-producing cells from stem cells in a highly effective manner, representing an important step towards a stem-cell-based treatment for Parkinson's Disease.
Australian researchers have made a groundbreaking discovery in stem cell research, producing the country's first human embryonic stem cell line without using animal products. The new line, named 'Endeavour 1', has the potential to lead to safer treatments for conditions such as diabetes and Parkinson's disease.
A new lentiviral vector combines multiple gene manipulation techniques to efficiently regulate gene expression in cells. This versatile tool has potential applications in studying human genetic diseases, cancer research, and tissue engineering.
Researchers at Whitehead Institute have concluded that cloned and fertilization-derived stem cells are indistinguishable, with similar gene-expression profiles. This breakthrough paves the way for individualized cellular therapies for treating certain disorders.
Wisconsin scientists have developed a culture system free of animal cells, growing two new human embryonic stem cell lines. The new lines survive for over seven months in the defined medium, showing promise for therapeutic use. However, further work is needed to understand chromosome stability during long-term culture.
Researchers at UW-Madison report that transplanted stem cells can develop into heart muscle and blood vessels in damaged hearts, improving function. The study's results demonstrate the therapeutic potential of embryonic stem cells for treating heart disease.
A team of researchers has uncovered a remarkable developmental pathway in stem cells, revealing a natural compensatory mechanism that could affect their therapeutic applications. This self-regulatory system helps stem cells differentiate into specific tissues, and disrupting it may be necessary to induce the desired outcome.
Researchers estimated that 150 blood group compatible donors, 100 O donors, or ten highly selected donors could provide maximum benefit for HLA matching. The study aims to establish a hESC bank with sufficient HLA diversity for the UK population.