Articles tagged with Embryoid Bodies
Researchers have developed a mouse embryo model using only embryonic stem cells, achieving a high level of developmental stages including beating hearts and brain formation. This advancement opens up new avenues for understanding human pregnancy loss and developing organs in culture.
A study by Florida Atlantic University researchers compared the walking and swimming behaviors of neonate and juvenile epaulette sharks. Contrary to expectations, results showed that differences in body shape did not alter kinematics between early life stages, suggesting a consistent locomotor performance.
Researchers developed new method to visualize CNS fibroblasts and their intercellular interactions in the CNS. The technique provides a detailed picture of CNS fibroblasts, including their location, size, morphology, and gene/protein expression patterns.
A research group discovered that β-catenin signaling is used for axial patterning in sea anemones and sea urchins, a mechanism that also exists in vertebrates. This suggests that this system was present in the common ancestor of Cnidaria and Bilateria around 650 million years ago.
Researchers at Heidelberg University discovered an enzyme that breaks down Wnt proteins, shaping body axis development in the freshwater polyp Hydra. This discovery may play a role in human diseases such as cancer.
Biologists at St Petersburg University studied mechanisms of regeneration of marine animals and found that suppression of FGF protein activity disrupts the ability of Alitta virens to restore lost body segments. Similar proteins are found in humans, suggesting potential therapeutic approaches for regenerative medicine.
Coelacanths have been found to live up to 84 years old and take over five years to gestate their offspring. Their slow life history makes them vulnerable to conservation threats, with the African coelacanth assessed as critically endangered.
Researchers at Yale University have developed a method to recreate the earliest stages of cellular development, allowing scientists to track individual cell lineages. By analyzing tiny variations in skin cells' genomes, they can reconstruct the early lineage trees for each person, shedding light on human biology and potentially diagnos...
Researchers successfully grow mouse stem cells into sperm in the body of rats, paving the way for efficient reproduction and future applications.
The study reveals that both parents contribute to the body orientation of their offspring, with maternal input setting the back-belly axis and paternal input setting the head-tail axis. The findings provide new insights into developmental biology and may offer clues as to why developmental processes sometimes go wrong.
A team from Marine Biological Laboratory has confirmed that insect wings evolved from leg lobes on an ancestral crustacean. The study used genomic approaches and long-ago scientific papers to settle the controversy, revealing a 300-million-year-old transition to land-dwelling.
Cells use self-generated chemotaxis to create attractant gradients, allowing them to read local and global information about their surroundings. This process enables cells to navigate vast distances through the human body during embryogenesis and other biological events.
Researchers at Massachusetts General Hospital discovered the role of an enzyme in X chromosome inactivation, which is essential for normal female development and sets the stage for genetic disorders. The study shows that a critical protein helps 'flip the switch' on one X chromosome, allowing the other to be silenced.
Researchers successfully regulated parameters to enhance cardiomyocyte production, overcoming limitations of embryoid body differentiation. The use of 3D printing enables precise control over stem cell differentiation, paving the way for bio-inspired approaches in regenerative medicine.
Researchers discovered a population of brain-resident immune cells that transfer information from the body to the brain environment. The presence of these cells is crucial for normal brain development in mice, and their absence affects behavior and brain development.
Researchers developed a new model to study early human development using human embryonic stem cells, allowing them to observe the formation of the body plan and potentially reveal causes of birth defects and diseases. The model, called gastruloids, resembles an embryo at around 18-21 days old.
Researchers at Tel Aviv University have developed a new technology to identify and select better-quality sperm cells, which could increase the chances of pregnancy and a healthy fetus. The technology uses light computed tomography (CT) to create highly dynamic 3D maps of sperm contents without cell staining.
A new study at CNIC discovers a molecular mechanism regulating macrophages, key immune sentinels. The research may lead to cancer treatments and tissue repair by targeting these cells.
Researchers from Columbia University and the Spanish National Research Council have discovered a method to systematically identify the role of each Hox gene in a developing fruit fly. This breakthrough offers a new path forward for decoding the underlying genetic mechanisms that guide growth and development, aging, and disease.
Researchers from UMH-CSIC Institute of Neuroscience found that the brain's somatosensory cortex is formed and functional before birth due to spontaneous electrical activity of the embryonic thalamus. This discovery suggests a critical role for thalamic waves in organizing the cortical map and shaping sensory processing.
Researchers at the University of Illinois have discovered a key to the soybean cyst nematode's growth, allowing it to produce more offspring. The nematode's unique body shape enables it to retain fertilized eggs and harden into a protective cyst.
A team of researchers has found that the four gap genes in Drosophila embryos can be jointly decoded into an optimal specification of position, suggesting that cell identities are established close to optimally. The study challenges the traditional textbook model of how positional information is conveyed in the embryo.
Researchers have identified a key Sox gene that regulates segmentation during spider development, similar to its role in insects. This finding sheds light on the evolutionary secrets behind arthropod body formation.
Researchers at Oregon State University have identified a multifaceted stem cell niche that gives rise to neurons, blood vessels, blood cells and immune cells. This breakthrough could lead to the growth of entire organs in a laboratory setting.
A team of scientists developed a novel platform to study lumen formation in epithelial tubes, which can lead to diseases like atherosclerosis and kidney failure. The 3D microtube setup allows cells to form tubes under different physical constraints, revealing the importance of mechanical forces in tissue development.
Researchers sequenced the giant salamander genome, uncovering a family of genes that provide clues to its remarkable ability to rebuild complex tissue and resist tumour formation. The study offers new insights into regeneration and potential avenues for developing regenerative strategies for humans.
Researchers removed frog embryos' brains and found muscles & nerves developed abnormally without brain; they successfully rescued defects with human-approved drugs. The study reveals the brain's role in early development and could lead to better ways to address birth defects.
Researchers from the University of Copenhagen have made significant progress in understanding how primary cilia receive and transmit signals, shedding light on their role in regulating cellular behaviors and preventing diseases such as ciliopathies.
Researchers at OHSU and Salk Institute develop a new method to transmit a mother's genetic material into donor eggs, potentially increasing the success rate of infertility treatments. The technique could benefit women of advanced maternal age and those with mitochondrial mutations.
Researchers at MDI Biological Laboratory found that early-life stress increases adult vulnerability to diseases like arthritis, asthma, cancer, diabetes, heart disease, and mental illness. Chronic exposure to cortisol in zebrafish embryos leads to abnormal immune systems and signs of chronic inflammation.
A new study reveals that genes within and outside the heart play a crucial role in determining the risk of congenital heart defects. The research found that Nipbl gene mutations can cause atrial septal defects, but only when combined with other genetic factors or environmental influences.
Researchers found that genetic alterations causing congenital heart defects involve interactions between heart-forming tissues and the rest of the body. The study suggests that heart defects occur when the heart does not grow quickly enough to meet the demands of the developing body.
Researchers propose a new theory, embryo geometry, that explains how vertebrates evolved from a single cell by mechanical deformation and geometric patterns. The study presents illustrations depicting the formation of various systems in vertebrates.
A research team led by Moisés Mallo discovered the Oct4 gene as a key regulator of vertebrate trunk length diversity. The study found that snakes have an exceptionally long trunk due to changes in their genome during reptile evolution, which keeps the Oct4 gene active for longer periods.
Researchers discovered that introducing the embryonic gene Nanog into aged stem cells can reverse cellular processes associated with age-related disorders, such as weak bones and clogged arteries. This breakthrough could lead to new treatments for conditions like Alzheimer's disease.
Researchers have found a blastoporal organizer in sea anemone embryos, using the same signaling molecules as vertebrate organizers. This principle existed in the common ancestor of vertebrates and sea anemones over 600 million years ago.
A study published in Current Biology found that the gene responsible for twisted snails' shells is linked to internal asymmetry in frogs. This suggests that body asymmetry may be an evolutionarily ancient characteristic of animal development.
The study found that regular microtubule arrangement is necessary for node cilia rotation, which determines left-right asymmetry of the body. The researchers also discovered that radial spokes play a crucial role in supporting this structure.
The discovery of eggs with embryos preserved within the body of a 508-million-year-old Waptia fossil provides the oldest direct evidence of a creature caring for its offspring. This finding supports the theory that the presence of a bivalved carapace played a key role in the early evolution of brood care in arthropods.
Researchers have created a 3D printing technique that produces highly uniform 'blocks' of embryonic stem cells, which can be used as building blocks to construct tissue constructs, larger structures of tissues, and potentially even micro-organs. The method outperforms existing methods in terms of cell uniformity and homogenous prolifer...
A new Indiana University study reveals that sexual activity promotes types of immunity supporting conception. The research found higher levels of helper T cells and immunoglobulins in sexually active women compared to those who were abstinent.
Researchers successfully joined two separate pieces of embryonic mouse intestine using growth supports, allowing nerve signals to pass through and promoting growth. The breakthrough could lead to treatment for conditions like short bowel syndrome, a condition causing damage to the bowel that prevents nutrient absorption.
A collaborative study led by NUS scientists has identified a universal mechanism that regulates forces during epithelial tissue repair. The researchers found that cells respond to the shape and geometry of gaps in the tissue, with convex edges facilitating faster movement than concave edges.
A recent study published in Biological Reviews found that matrotrophy, where mothers provide nutrients to their embryos during gestation, has evolved independently in at least 21 of 34 animal phyla. This process is more common than previously thought and is often associated with live birth.
Researchers found that failed synchronization of the womb's clock with the mother's body clock can lead to miscarriage or infertility. The study also suggests that subtle synchronization defects may increase the risk of complications during pregnancy.
Researchers at Cincinnati Children's Hospital Medical Center found that the size and patterning accuracy of an embryo depend on the amount of reproductive resources invested in by mothers before eggs leave the ovary. The study used fruit flies to develop a mathematical model, TEMS, which links core pieces of the developmental picture. ...
Researchers found that sea anemones use BMP signaling molecules to establish a second body axis, regulating mesenteries and Hox gene activation. This discovery provides insights into the evolution of animal body axes over hundreds of millions of years.
Researchers at NYU Langone Medical Center discovered that the specialized DNA-binding protein CTCF is essential for precise gene expression in developing embryos. The findings shed light on how Hox genes maintain cellular positioning and position-specific gene regulation.
Researchers at MIT and Purdue University have found that meteorites are not building blocks of planets, but rather byproducts of a violent planetary process. Computer simulations show that large moon-sized bodies likely existed before chondrules formed, which were then created by collisions of these bodies.
Researchers at San Francisco State University have discovered that Hox genes are employed in the development of a range of vertebrate features beyond fins and limbs. The study reveals that this ancient genetic program is utilized in patterns such as barbels, vents, and claspers, expanding our view of its role in morphological diversity.
Researchers have created protocols to clear entire organs and bodies, enabling visualization of long-range cellular connections and fine-grained structures. This breakthrough paves the way for better understanding of brain-body interactions, accurate clinical diagnoses, and new therapies.
Researchers at University College London have discovered a way to block the movement of cancer cells by targeting chemical signals that trigger their transformation into an invasive, liquid-like state. This breakthrough could lead to innovative techniques to stop cancer cells from spreading and causing secondary tumours.
A recent NIH study has identified a crucial gene involved in the early development of cilia, which are essential for cell communication and sensory systems. Without this gene, mice failed to grow cilia, leading to embryonic death, highlighting the importance of Cc2d2a in cilia formation.
Researchers propose that fins and limbs develop from the area surrounding the belly due to the interaction of ectodermal tissues with mesoderm layers. This model, published in Evolution & Development, suggests that epigenetic factors play a crucial role in shaping embryonic development and ultimately giving rise to paired appendages.
Researchers at the University of Georgia have discovered that small satellite thymuses, or cervical thymi, have two distinct origins and may play a role in the development of T-cells. These cells can produce either helpful or harmful T-cells, highlighting the need for further research into their potential impact on human health.
The University of Adelaide has been awarded $23 million to establish a new Center of Excellence that will explore the boundaries of biology, lasers, and nanoscience to create a 'window into the body'. The center will focus on three main themes: sensing in developing embryos, immune signals linked to touch and pain, and exploring the ro...
A UCLA study has identified a biological clock embedded in the human genome that can accurately measure the age of diverse organs, tissues, and cell types. The clock found that some parts of the anatomy, like breast tissue, age faster than the rest of the body.
Researchers find removing MBD3 protein increases efficiency of stem cell reprogramming from 1% to 100%, allowing for faster production of cells for medical use. This breakthrough provides a deeper understanding of embryonic development and could advance treatment of various diseases.
Researchers have detected perfluoroalkyl substances (PFASs) in the brain tissue of polar bears, which could have severe impacts on human health. The study suggests that PFASs are crossing the blood-brain barrier and accumulating in all parts of the brain, highlighting the need for further research into their effects.
Researchers at Instituto Gulbenkian de Ciencia discovered that the leg plays a crucial role in initiating the transition from trunk to tail tissues during embryonic development. The genetic cascade triggered by Gdf11 signaling is coordinated with the formation of legs and the cloaca, leading to changes in the body plan.