Cell Biology

Cell Biology News -- ScienceDaily Cell biology news. Read the latest research news on cell biology and see related videos.

  • A code for reprogramming immune sentinels
    on December 7, 2018 at 8:42 pm

    For the first time, a research team has successfully reprogrammed mouse and human skin cells into immune cells called dendritic cells. The process is quick and effective, representing a pioneering contribution for applying direct reprogramming for inducing immunity. Importantly, the finding opens up the possibility of developing novel dendritic cell-based immunotherapies against cancer. […]

  • What's behind Mediterranean diet and lower cardiovascular risk?
    on December 7, 2018 at 5:52 pm

    A new study offers insights from a cohort study of women in the U.S. who reported consuming a Mediterranean-type diet. […]

  • Scientists to produce anti-cancer drugs in yeast
    on December 7, 2018 at 5:14 pm

    Nature is so complex that natural molecules used for i.e. cancer treatment still can't be produced by chemical synthesis. Today, major chemical and pharmaceutical companies harvest large amounts of rare plants and seeds in order to extract valuable substances. […]

  • Molecular insights into spider silk
    on December 7, 2018 at 4:27 pm

    Spider silk belongs to the toughest fibers in nature and has astounding properties. Scientists have now discovered new molecular details of self-assembly of a spider silk fiber protein. […]

  • Bacterial 'sleeper cells' evade antibiotics and weaken defence against infection
    on December 7, 2018 at 4:27 pm

    New research unravels how so-called bacterial persister cells manipulate our immune cells, potentially opening new avenues to finding ways of clearing these bacterial cells from the body, and stopping recurrence of the bacterial infection. […]

  • Double the stress slows down evolution
    on December 7, 2018 at 4:27 pm

    Bacteria evolve resistance to antibiotics more slowly if they also have to defend themselves against predators. […]

  • News about a plant hormone
    on December 7, 2018 at 4:27 pm

    The plant hormone jasmonic acid also performs a function that was previously unknown. It ensures that the leaf pores close when leaves are injured. For the plant, this could be an emergency signal. […]

  • Engineers repurpose wasp venom as an antibiotic drug
    on December 7, 2018 at 4:26 pm

    Engineers have repurposed wasp venom as an antibiotic drug that's nontoxic to human cells. […]

  • Half a million tests and many mosquitoes later, new buzz about a malaria prevention drug
    on December 6, 2018 at 7:12 pm

    Researchers spent two years testing chemical compounds for their ability to inhibit the malaria parasite at an earlier stage in its lifecycle than most current drugs, revealing a new set of chemical starting points for the first drugs to prevent malaria instead of just treating the symptoms. […]

  • Mice display altered immune system following spaceflight
    on December 6, 2018 at 7:11 pm

    Based on examinations of mice that had been on board the Bion-M1 biosatellite, new research demonstrates that the outer space environment impairs the production of B lymphocytes, the white blood cells responsible for antibody production. The study also shows that such adverse effects persist at least one week after returning to Earth. […]

  • What can a snowflake teach us about how cancer spreads in the body?
    on December 6, 2018 at 6:56 pm

    What can seashells, lightning and the coastline of Britain teach us about new drugs for cancer? The answer, according to a team of researchers, may revolve around fractals, the infinitely complex patterns found in nature. […]

  • What sets primates apart from other mammals?
    on December 6, 2018 at 5:00 pm

    Researchers have discovered information about a gene that sets primates -- great apes and humans -- apart from other mammals, through the study of a rare developmental brain disorder. […]

  • An ancient strain of plague may have led to the decline of Neolithic Europeans
    on December 6, 2018 at 5:00 pm

    Researchers have identified a new strain of Yersinia pestis, the bacteria that causes plague, in DNA extracted from 5,000-year-old human remains. Their analyses suggest that this strain is the closest ever identified to the genetic origin of plague. Their work also suggests that plague may have been spread among Neolithic European settlements by traders, contributing to their decline. […]

  • Parrot genome analysis reveals insights into longevity, cognition
    on December 6, 2018 at 4:48 pm

    Parrots are famously talkative, and a blue-fronted Amazon parrot named Moises -- or at least its genome -- is telling scientists volumes about the longevity and highly developed cognitive abilities that give parrots so much in common with humans. Perhaps someday, it will also provide clues about how parrots learn to vocalize so well. […]

  • Small molecules come into focus
    on December 5, 2018 at 10:19 pm

    Many biologically important small molecules, like hormones and amino acids, are too small to be measured by conventional detection methods. Researchers have created a new type of immuno-assay that is capable of detecting small molecules with 50-fold greater sensitivity than conventional detection methods, and can be easily integrated into existing diagnostic platforms. […]

  • Classifying brain microglia: Which are good and which are bad?
    on December 5, 2018 at 10:19 pm

    Microglia are important to brain function, and also seem to play a role in disease. New work offers the most comprehensive accounting of brain microglia to date and opens a new chapter in brain exploration. The researchers performed RNA sequencing of 76,000 individual cells -- the most comprehensive accounting to date -- and spatially mapped them. Their findings could help scientists tell whether microglia are contributing to disease or trying to repair the brain, informing treatment strategies. […]

  • Weirdly shaped mouse sperm can be used to tell species apart
    on December 5, 2018 at 10:19 pm

    Lots of rodent species look nearly identical, and it's hard to tell them apart using DNA. But scientists have found a new way to distinguish one species from another: the shape of their sperm. Closely related species can have sperm with radically different shapes, with sperm head shapes ranging from smooth and rounded to 'soft-serve ice cream cone.' And that means scientists have a new means of telling them apart. […]

  • Cereals use chemical defenses in a multifunctional manner against different herbivores
    on December 5, 2018 at 7:27 pm

    Scientists have characterized multiple functions of benzoxazinoids in wheat: The toxic form of the substances makes the plant directly resistant to lepidopteran larvae, whereas a less toxic form regulates indirect defense mechanisms against aphids. The researchers identified the 'switch' between these different functions as a methyltransferase enzyme, which is activated by caterpillar feeding. This switch enables wheat plants to adapt their defense response to different herbivores. […]

  • Memory B cells in the lung may be important for more effective influenza vaccinations
    on December 5, 2018 at 7:27 pm

    Using a mouse model of influenza and experiments that included parabiosis, researchers definitively showed that lung-resident memory B cells establish themselves in the lung soon after influenza infection. Those lung memory B cells responded more quickly to produce antibodies against influenza after a second infection, as compared to the response by the circulating memory B cells in lymphoid tissue, and establishment of the lung-resident memory B cells required a local antigen encounter in the lung. […]

  • Whole-brain imaging of mice during behavior
    on December 5, 2018 at 6:41 pm

    In a new study, researchers demonstrate how functional ultrasound imaging can yield high-resolution, brain-wide activity maps of mice for specific behaviors. The non-invasive technology has promising applications for ophthalmologic, neurologic and psychiatric diseases. […]

  • Soft tissue shows Jurassic ichthyosaur was warm-blooded, had blubber and camouflage
    on December 5, 2018 at 6:41 pm

    An ancient, dolphin-like marine reptile resembles its distant relative in more than appearance, according to an international team of researchers. Molecular and microstructural analysis of a Stenopterygius ichthyosaur from the Jurassic (180 million years ago) reveals that these animals were most likely warm-blooded, had insulating blubber and used their coloration as camouflage from predators. […]

  • Scientists design way to track steps of cells' development
    on December 5, 2018 at 6:41 pm

    Scientists have developed a new tool described as a 'flight data recorder' for developing cells, illuminating the paths cells take as they progress from one type to another. This cellular tracking device could one day help scientists guide cells along the right paths to regenerate certain tissues or organs, or help researchers understand the wrong turns some cells might take on their way to becoming cancerous. […]

  • Sea invertebrate sheds light on evolution of human blood, immune systems
    on December 5, 2018 at 6:41 pm

    Botryllus schlosseri, a marine invertebrate that lives in underwater colonies resembling fuzzy pinheads clinging to rocks, has a blood-forming system with uncanny similarities to that of humans, according to scientists. […]

  • A microbe's membrane helps it survive extreme environments
    on December 5, 2018 at 6:41 pm

    Within harsh environments like hot springs, volcanic craters and deep-sea hydrothermal vents -- uninhabitable by most life forms -- microscopic organisms are thriving. How? It's all in how they wrap themselves. […]

  • 30 years of experimental evolution results in a new sex chromosome
    on December 5, 2018 at 6:40 pm

    Researchers report new findings of an experimental evolutionary project that ran for 30 years on the genomic mechanisms of sex determination in swordtail fish. […]

  • Breakthrough in blood vessel engineering
    on December 5, 2018 at 6:40 pm

    Growing functional blood vessel networks is no easy task. Previously, other groups have made networks that span millimeters in size. But now, a team has grown a self-assembling, functional network of blood vessels across centimeter scales, a size relevant for human use. With continued development and refinement, the microfluidic system could be used to grow blood vessels for human tissue and organ transplants. […]

  • Tuberculosis survives by using host system against itself, study finds
    on December 5, 2018 at 6:39 pm

    Scientists have discovered that the pathogen Mycobacterium tuberculosis (MTB) releases RNA into infected cells. […]

  • Scientists identify 'youth factor' in blood cells that speeds fracture repair
    on December 5, 2018 at 2:37 pm

    Researchers previously showed that introducing bone marrow stem cells to a bone injury can expedite healing, but the exact process was unclear. Now, the same team believes it has pinpointed the 'youth factor' inside bone marrow stem cells -- it's the macrophage, a type of white blood cell, and the proteins it secretes that can have a rejuvenating effect on tissue. […]

  • How the brain hears and fears
    on December 5, 2018 at 2:37 pm

    What does the brain do when things go bump in the night? Researchers are looking at neural activity in the amygdala by studying how mice react when they hear a sound they've been taught to fear. […]

  • Cannabis-based compound may reduce seizures in children with epilepsy
    on December 5, 2018 at 2:36 pm

    A recent analysis of published studies indicates that the use of cannabinoids for the treatment of epilepsy in children looks promising. […]