Articles tagged with Embryonic Stem Cells
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.
Researchers found that genes OCT 4, NANOG, STELLAR, and GDF3 are elevated in seminoma and breast cancer samples. This discovery may lead to new targets for therapy or markers for diagnosis.
Researchers at UF have discovered a population of stem cells with characteristics of adult and embryonic stem cells in cultures derived from bone tumor biopsies. These findings suggest that osteosarcoma, a common bone malignancy in children, may be linked to primitive stem cells.
Researchers at Imperial College London have directed embryonic stem cells to become cartilage cells, showing potential for growing new cartilage for transplantation. This breakthrough technique could also be used in cosmetic and reconstructive surgery, offering a new solution for joint replacements and other medical problems.
Researchers at UT Southwestern have developed methods to keep sperm precursor cells from differentiating into sperm, allowing them to freeze and thaw the cells. This breakthrough could lead to alternative sources for embryonic stem cells and enable the development of new male contraceptives. The study's findings also pave the way for g...
Researchers developed a system to trace lineage on a large scale by analyzing genetic mutations in microsatellites, creating accurate cell lineage trees for living cells. The method uses a computer algorithm to analyze genetic information and assess degrees of relatedness.
Researchers uncover new insights into Hedgehog signaling, revealing the primary cilium's crucial role in connecting Smoothened to downstream signaling. This discovery has significant implications for understanding cancer and birth defect causes, as well as advancing stem cell research.
Researchers have discovered functional ion channels in human stem cells that regulate cell differentiation and proliferation. By targeting specific potassium channels, scientists may be able to control cell growth and prevent tumor formation, potentially leading to new treatments for various diseases.
Scientists have successfully developed a proof-of-concept for Altered Nuclear Transfer (ANT), an alternative to somatic cell nuclear transfer (SCNT) that enables the creation of genetically altered embryos without implantation. The method uses RNA interference to disable genes in donor nuclei, producing stem cells with disabled Cdx2 fu...
A recent survey of over 2,200 Americans found broad support for human embryonic stem cell (ESC) research, with two-thirds approving or strongly approving its use. The study's findings contradict the deeply polarized debate seen in Congress and newspapers, highlighting a more nuanced public opinion landscape.
Researchers at the University of Minnesota have successfully generated natural killer cells from human embryonic stem cells that can target and destroy cancer cells. The breakthrough research suggests a potential new approach to treating cancers such as leukemia and lymphoma, and may also lead to treatments for infections.
A UCSF team recommends amending current practices to ensure the safety of patients participating in clinical trials involving embryonic stem cells. The guidelines aim to protect donors' privacy by recontacting them over the years to update their medical records.
A new study by UCI researchers shows that adult human neural stem cells can differentiate into new oligodendrocyte cells and neurons, restoring myelin and improving motor function in mice with spinal cord injuries. The treatment also leads to behavioral improvements, including the ability to step using hind paws.
The Gladstone Institutes' team supplied original stem cells for the exhibit and trained museum staff on techniques to activate cells. The exhibit showcases the development of cardiac myocytes from undifferentiated state to pulsating heart cells.
A team of researchers has identified three key transcription factors that enable human embryonic stem cells to maintain pluripotency. By understanding the regulatory circuitry controlling these cells, scientists can now develop strategies to coax them into specific cell types for regenerative medicine applications.
Researchers have made significant progress in understanding stem cells and their role in reproduction and the nervous system. Studies suggest that therapeutic cloning may become unnecessary once body cells can be re-programmed into stem cells.
Researchers found that most human embryonic stem cell lines exhibit gross genetic changes after a year to three years of growth in the lab. These changes can affect chromosome numbers, gene expression, and mitochondrial DNA sequences. The study highlights the need for close monitoring and further investigation into the effects of these...
Researchers at Imperial College London have made a major breakthrough in growing human lungs for transplantation using embryonic stem cells. The cells will be used to repair damaged lungs, particularly in cases of acute respiratory distress syndrome (ARDS).
Scientists have devised a new technique for creating human stem cells by fusing somatic cells with embryonic stem cells. The hybrid cells exhibit characteristics of human embryonic stem cells and can be induced to mature into various specialized cell types. However, technical hurdles remain before this method can be widely adopted.
A trans-Atlantic team of researchers has successfully created embryonic-like stem cells from umbilical cord blood, a breakthrough that could revolutionize the treatment of serious diseases. The new cell type shares characteristics with both adult and embryonic stem cells, making it an attractive alternative for stem cell therapies.
The Mount Sinai School of Medicine has been awarded significant NIH funding to support its stem cell research efforts. Researchers will focus on developing methods to genetically modify stem cells and studying the molecular signals that cause them to differentiate into red blood cells.
The Burnham Institute was selected by NIH to receive a $3M grant for exploratory center in hESC research. The center will support pilot projects, core facilities, and training for scientists.
The National Institute of General Medical Sciences (NIGMS) has funded three new Exploratory Centers for Human Embryonic Stem Cell Research. The centers will establish core facilities to support scientists and advance fundamental knowledge of human embryonic stem cell properties and functions.
Researchers have discovered cells in discarded placentas that can develop into specialized cells like liver, pancreas, and nerve cells. The amniotic epithelial cells express genes similar to those of embryonic stem cells, but with limitations, offering a potentially new source for regenerative medicine.
Researchers at Max Planck Institute find that adult stem cells fuse with muscle cells to form functional tissue, contradicting the long-held idea of transdifferentiation. This discovery has significant implications for stem cell therapies targeting organ regeneration.
The new center will explore basic biological mechanisms and translational research on muscular dystrophies, while providing advanced diagnostic services to patients. Researchers will investigate new treatments for Duchenne muscular dystrophy and develop mouse models to test potential therapies.
Researchers have successfully isolated and differentiated human mesenchymal stem cells from embryonic stem cells, offering a promising alternative to traditional methods. These cells can differentiate into multiple cell types, including bone, cartilage, fat, and muscle, with high purity and unlimited availability.
Scientists have successfully developed ovarian structures containing eggs from embryonic stem cells, a breakthrough that could provide new hope for infertile couples. The method uses growth factors derived from testicular cells to induce the development of female reproductive cells.
Researchers discovered that some abnormal embryos can self-correct in laboratory culture, producing high-quality stem cells. This breakthrough offers an alternative to creating embryos specifically for stem cell research, potentially resolving ethical concerns.
Researchers at Johns Hopkins Medicine have successfully grown human stem cells in a lab setting that mirrors the natural developmental process of blood cells. The study provides unprecedented insight into how stem cells specialize into blood cells, shedding light on the mechanisms behind leukemia and lymphoma.
Researchers have made history by cloning human embryos using matured lab-grown eggs and non-autologous nuclear transfer. Eighteen out of 25 in vitro matured oocytes survived the process, with 11 developing into pronuclei.
Researchers have developed a new method to obtain embryonic stem cells from early-stage embryos, potentially reducing embryo wastage. The technique was successful in mice and shows promise for human application.
Researchers have successfully derived human embryonic stem cells that can develop into primordial germ cells, which eventually form eggs and sperm. This breakthrough may help solve infertility issues and study the effects of environmental chemicals on reproductive development. Further work is needed to translate this promise into reality.
Researchers at UNC Health Care have discovered a protein called eed that regulates gene modification in embryonic stem cells. This finding has significant implications for understanding human diseases and developing stem cell therapeutics.
The Rockefeller University and Memorial Sloan Kettering Cancer Center are collaborating on stem cell research to understand the biology of stem cells. Researchers are working together to identify cancer stem cells and develop cell-based therapeutic strategies for diseases like Parkinson's.
A new report by the Genetics & Public Policy Center reveals a polarized debate over cloning policies, with high awareness but limited understanding of its scientific feasibility. The report highlights the need for sound science policy and contributes to public understanding of the complex ethical and policy issues surrounding cloning.
A single protein, REST, directs the transformation of embryonic stem cells into mature nerve cells by keeping genes off in non-neuronal tissues. The study reveals fundamental details of how stem cells retain developmental plasticity.
Researchers at the Salk Institute discovered a mechanism controlling left-right body plan development in embryos of mice, rabbits and fish. The cilia's clockwise rotation generates a right-to-left current that acts as an amplifier to set up a chemical gradient.
Researchers have created patient-specific stem cell lines using somatic cell nuclear transfer, enabling the study of human disease in laboratory cells. The new cell lines displayed signs of immunological compatibility with patients' cells.
Scientists have discovered a key genetic mutation that causes a dramatic increase in testicular cancer incidence in mice, suggesting new avenues for understanding the disease's genetic control. The mutation affects RNA editing, which may be used to diagnose at-risk individuals or develop targeted therapeutics.
Researchers found that transplanting pig pancreatic primordia into diabetic rats at precisely 28 days after fertilization cures their diabetes. Transplantation at this stage made the tissues invisible to the rat's immune system, leading to permanent cure without immune suppression.
Researchers discovered that retinoic acid, vitamin A, buffers asymmetric cues in early-stage embryonic stem cells, enabling them to develop symmetrically. This finding challenges the conventional understanding of how symmetry is established in the human body.
A human embryonic stem cell-derived treatment has restored insulation tissue for neurons in rats with acute spinal cord injuries, leading to significant improvements in walking ability. However, the same treatment was ineffective on rats with chronic injuries, highlighting the importance of early intervention.
The researchers found that activating the Oct4 gene in adult tissue causes tumors by preventing stem cells from differentiating. This discovery may allow scientists to multiply adult stem cells in the lab without forming mature tissue.
Researchers have successfully developed human eggs from ovarian surface cells (OSE cells) in a laboratory setting. This breakthrough has potential applications in human reproduction, including increased chances of conception for women with reduced fertility and premature menopause.
The university's new regenerative medicine program aims to translate basic stem cell science into therapies for degenerative diseases. The program will draw on faculty from five Medical School departments and be supported by $700,000 in annual funding.
Researchers at Stanford University have successfully differentiated human neural progenitor cells into insulin-producing cells that can respond to glucose. These cells were then transplanted into immunocompromised mice and produced human insulin when stimulated by glucose, paving the way for potential treatment of type I diabetes.
Researchers have isolated embryo-quality stem cells from adult blood for the first time using a physical characteristic of each cell's stretchiness. This breakthrough technique could revolutionize medical research and treatment by providing an alternative to embryonic stem cells.
Researchers at the University of California, San Diego (UCSD) have developed an animal-free culture medium that can maintain human embryonic stem cells in a continuous undifferentiated state. The study's findings provide a new way to generate human stem cell lines without contamination by animal cells or products.
Researchers have successfully developed a method to mass-produce embryonic stem cells using a bioreactor, which increases cell growth up to 193-fold in just 15 days. This innovative approach has the potential to reduce production costs by at least 80% and increase cell density by several hundred million times.
Researchers at UC Berkeley have discovered three overlapping signals in the embryo that are crucial for proper development of the backbone and belly. By blocking these signals, the team found that tissues form on the back were lost while belly tissues were greatly expanded, leading to a repatterning of the entire embryo.
Researchers have developed a new way to culture human embryonic stem cells without using animal-derived materials, reducing the risk of contamination with pathogens. This breakthrough could lead to safer and more effective stem cell therapies for treating various diseases.
Researchers at WiCell Research Institute and University of Wisconsin-Madison develop method to eliminate need for feeder cells, simplifying culture of human ES cells. The new approach uses protein FGF2 to preserve undifferentiated state and reduce differentiation.
Researchers at UNC School of Medicine used embryonic stem cells treated with a growth factor to reverse hemophilia B in genetically altered mice. The study demonstrates the potential for stem cell therapy in treating genetic disorders, such as liver diseases.
The UCSD team identified isl1+ cardiac progenitor cells in newborn rats and mice, as well as in human heart tissue, which can spontaneously form heart muscle tissue. The discovery raises the possibility of using these cells to correct a wide spectrum of pediatric cardiac diseases.
Researchers have successfully grown functional motor neurons from human embryonic stem cells in a lab, providing a critical breakthrough for treating diseases like ALS. The discovery challenges the long-held assumption that stem cell differentiation occurs in linear fashion.
Researchers found that human embryonic stem cells contain a non-human sialic acid called Neu5Gc, which is incorporated from animal-derived culture materials. The discovery poses a safety concern for the potential therapeutic use of these cells in humans.
Researchers at the University of California, San Diego, have developed a technique to identify the precise mix of extracellular matrix proteins that optimally prompts mouse embryonic stem cells to begin differentiating into liver cells. This breakthrough enables scientists to use inexpensive and widely available reagents and machinery ...
Researchers successfully transplanted monkey embryonic stem cells to reverse Parkinson's disease symptoms in primates. The study demonstrated the potential of this approach to treat neurodegenerative diseases, despite low survival rates of transplanted neurons.