Articles tagged with Cell Division
Scientists have developed a treatment that 'reawakens' heart muscle cells, promoting repair and improving heart function after a heart attack. The treatment, using mRNA therapy, temporarily activates proteins that help regenerate heart tissue, leading to a stronger heartbeat and increased blood pump efficiency.
Researchers discover E2F1's shortcut method to cell division, which can activate genes without physically unpacking DNA, and its potential role in cancer growth and development. The study's findings may lead to more precise and targeted treatments for cancer by understanding the mechanisms that drive cell proliferation.
Researchers have discovered a link between CDK1 protein activity and breast cancer response to CDK4/6 inhibitors. Higher CDK1 activity is associated with more aggressive cancer and poorer outcomes. The study suggests that tracking CDK1 activity could help doctors identify patients most likely to benefit from targeted therapy.
A protein complex called the constitutive centromere-associated network (CCAN) assembles inside the cell, forming a spherical shell-like structure within the nucleus. This structure is essential for faithful segregation of chromosomes and is compromised when CENP-C is removed or prevented from binding to DNA.
Researchers at the Stowers Institute for Medical Research have discovered that cell division plays a crucial role in reshaping tissues, allowing them to maintain their structure despite constant cell growth. By studying epithelial tissues, including the intestinal lining, the team found that cell division triggers a coordinated series ...
Researchers used DNA Typewriter technology to reconstruct the lineage of 1.28 million cells in a mouse embryo, providing crucial insights into birth defects and cancer. The study's findings could lead to the development of new treatments and therapies.
A Mount Sinai study reveals that loss of p53 can reorganize Wnt signaling into a radial gradient, allowing mutant cells to expand through normal tissue. The researchers found that the spatial organization of Wnt signaling, rather than its overall activity, plays a critical role in this process.
Researchers develop a new technique called Light-Induced Spindle Activation (LISA) to study centrosomes and spindle assembly in greater detail. LISA reversibly activates Aurora A kinase, a key centrosomal enzyme critical for spindle assembly, and can be applied directly in living cells.
Researchers at the University of Maryland Baltimore County have identified USP15 as a promising new target for ovarian cancer treatment, which appears to rely on the enzyme for survival, division, and spread. Reducing USP15 levels makes cancer cells more sensitive to chemotherapy drugs, potentially leading to less harm to healthy cells.
Mitotic chromosomes may be formed from pre-existing condensed chromatin domains, known as 'building blocks', rather than being created from scratch during cell division. This view integrates the chromosome scaffold model with modern understanding of condensins and physical forces shaping chromatin.
Researchers found that ESCRT-III proteins form a protective coating around exposed DNA bridges, preventing damage and ensuring genome stability. This discovery provides insight into how cells protect themselves from DNA damage events linked to cancer development.
A study by John Innes Centre researchers reveals that inner tissues play a crucial role in shaping plant organs, contradicting the widespread assumption that external layers control growth. By analyzing cell division orientation and gene editing techniques, they discovered genes affecting stem thickness in Arabidopsis.
Researchers seek to understand the biological mechanisms behind Ewing sarcoma's rapid growth and spread, developing new tools to visualize DNA structures and regulate gene expression. This could lead to personalized cancer treatments targeting specific molecules for improved patient outcomes.
Researchers discovered a step-by-step process underlying SPD-5 activation, which regulates where and when spindle fibers form in C. elegans. This finding provides insights into the fundamentals of cell division regulation and may lead to new treatments for diseases caused by incorrect chromosome segregation.
Researchers found that self-propelled particles can spontaneously form clusters when navigating a dense colony of dividing cells. The growing medium creates an environment that transforms the particles' behavior, making them behave like active Brownian particles and attracting them to each other without explicit interaction.
Researchers examined two mechanisms of whole genome duplication in cells, finding that cytokinesis failure leads to more stable and viable cells, while mitotic slippage results in uneven chromosome distribution and reduced viability. The study suggests targeting chromosome separation could help limit survival of abnormal cells.
A new study by POSTECH researchers found that the protein tau interacts with DNA during cell division, forming condensates that capture microtubules. This interaction affects chromosome alignment and can lead to cellular abnormalities even in healthy cells.
Microtubules are regulators of enzymatic reactions through reshaping geometry of enzyme's substrate proteins attached to them. The discovery sheds new light on one-way chromosome attachments and quality-control system that helps prevent chromosome-segregation errors, a hallmark of many cancers.
Researchers at the University of British Columbia have identified genes and pathways responsible for plant recovery from environmental stress, including cold snaps and flooding. This discovery could lead to the creation of climate-resilient crops that can recover faster and more efficiently after climate events.
Researchers mapped out the structure of a key player, augmin, in exhaustive detail, revealing its role in plant cell division and shape regulation. The study's findings could lead to new medical treatments and strategies for breeding higher-quality rice and cotton crops.
Researchers at Max Planck Institute of Molecular Physiology have discovered the genetic origin of the tiny and precise centromeres in brewer's yeast. They found that these centromeres evolved from a likely intermediate stage and were shaped by retrotransposons, providing a concrete genetic explanation for their unique structure.
Researchers at the Flatiron Institute and their collaborators applied an active liquid crystal theory to understand how chromosomes are separated during cell division. The study found that the theory largely succeeds in predicting how spindles self-organize, using a combination of light microscopy and electron microscopy data.
A team of scientists from Tokyo Metropolitan University discovered how fertilized rice seeds begin to divide and establish their body axis. They found that the process involves radical steps different from Arabidopsis, with cells acting collectively to allow axis development despite apparent randomness.
Researchers discovered that cytoplasmic compartmentalization was inherently unstable in large vertebrate embryos, but found strategies to overcome this instability. The timing of cell divisions was precisely matched with the timescale of instability, allowing for robust embryonic organization.
A protein called Replication Factor C has been found to remain bound to a DNA sliding clamp even after loading it onto DNA, facilitating the copying process. This discovery challenges decades of textbook knowledge in basic biology and could inform research into cancer and neurological disorders.
A research team at The University of Osaka has identified a parallel pathway involving CENP-C for centromere specification and function. This process is vital for ensuring chromosomes are structured and genes are expressed appropriately.
Researchers identified genes controlling the switch between unicellular and multicellular life forms in marine yeast, revealing a molecular mechanism for clonal multicellularity. The study provides insights into how multicellular life may have evolved from single-celled ancestors.
Researchers at OIST have discovered that certain cancers can 'lose their sense of time' to avoid cellular stress responses. The study highlights the role of USP28 in stabilizing p53, a known tumor suppressor, and how mutations in this protein can disrupt its function.
Researchers have created a new system, GRAPE, that enables rapid and scalable directed evolution of genes directly in plant cells. This allows for the efficient generation of genetic variants with new properties, such as disease resistance, to enhance crop sustainability.
A new study reveals how Aurora A ensures smooth dissolution of spindle poles during cell division, allowing the genome to be properly encased in new nuclei. The team identified specific regions and amino acids in NuMA that drive its shift between dynamic and solid states.
The corona is a crucial structure in the kinetochore that ensures correct chromosome alignment and regulation of segregation. Scientists have discovered a dual-pathway assembly mechanism that drives corona formation from just two initial proteins.
The study reveals that four units of ZapA protein form an asymmetric ladder-like structure with FtsZ protofilaments, impacting the alignment of the Z-ring. The interaction between ZapA and FtsZ is dynamic, with cooperative binding and structural alterations, enabling the maintenance of FtsZ mobility.
A study by a trans-European research team reveals how DNA condensation during the cell cycle is regulated by a unique molecular switch. When cell division begins, the key enzyme CDK1 phosphorylates microcephalin and M18BP1, allowing condensin II to pack the DNA into sausage-shaped chromosomes.
Researchers discovered a specialized histone arrangement, called the CENP-A–H4 octasome, in centromeric regions. This unique structure likely contributes to proper kinetochore formation and mitosis.
Researchers at UCSF have successfully engineered a shapeshifting protein that can change shape in response to signals, potentially leading to breakthroughs in medicine, agriculture, and environmental applications. This achievement marks the first step towards creating stable yet dynamic proteins using AI-augmented protein engineering.
Researchers engineered E. coli cells to control Min protein expression levels, demonstrating stable oscillations across a wide range of concentrations. The study reveals the potential of integrating quantitative cell physiology and biophysical modelling to understand cellular organization.
Researchers at University of Seville have discovered patulin and xestoquinol as inhibitors of DNA topoisomerase 1, a key enzyme in DNA metabolism. These natural compounds may provide a new class of anticancer drugs by preventing DNA cuts from being ligated.
A new study at Stellenbosch University found that blocking the enzymes involved in glycolysis could cut off the malaria parasite's primary energy source and kill it. This approach has shown promise for developing new malaria drugs, particularly against resistant parasites.
A new vaccine platform developed at the University at Buffalo has demonstrated complete protection in mice against a deadly variant of bird flu. The vaccine, which combines key proteins hemagglutinin and neuraminidase, shows promise as a versatile and easy-to-produce vaccine that could be effective against evolving bird flu strains.
Scientists have captured the first detailed molecular movie of DNA being unzipped at the atomic level, revealing how cells copy their genetic material. The discovery has significant implications for understanding viral and cancer replication.
A team of scientists has successfully developed a novel platform for diabetes treatment utilizing bioink derived from pancreatic tissue and 3D bioprinting technology. The HICA-V platform replicates the structure and function of the human endocrine pancreas, supporting islet maturation and functional enhancement.
Researchers found that hibernating lemurs' telomeres got longer, contrary to the usual decrease with age, suggesting a potential way to reverse cellular aging. This study, conducted at Duke University and the University of California, San Francisco, provides insights into the mechanisms behind lemur's remarkable survival strategy.
A study by Juntendo University researchers found that TEFM is crucial for mtDNA replication regulation, particularly at the heavy-strand origin. The team's genome-edited TEFM knockout revealed a notable reduction in mtDNA copy number and strand-asynchronous replication intermediates.
Scientists have identified a new target to prevent cold sores by understanding how the herpes virus triggers its own immune response. The discovery has important implications for genital herpes caused by the same virus, with potential treatments in development.
Researchers identified two venom genes in parasitoid wasps that degrade adult tissue precursors in host fly larvae, ensuring successful parasitism. The findings provide insights into the molecular mechanisms behind the sophisticated survival strategy of these wasps.
A team of researchers has developed a novel model of the Blood-Brain Barrier, which mimics the complex structure of cerebral blood vessels. This breakthrough enables scientists to study neuroinflammation and develop new therapeutic strategies for Alzheimer's disease and other neurodegenerative disorders.
A study on six serodiscordant couples found that women who were immune to SARS-CoV-2 had elevated expression of the gene IFIT3 compared to their male partners. This suggests that overexpression of IFIT3 may offer protection against COVID-19 by inhibiting viral replication and preventing cell invasion.
Scientists from Gladstone Institutes developed a new method called RASAM, which made a surprising discovery that large sections of newly formed DNA are hyperaccessible for many hours. This finding holds important implications for basic understanding of biology and the development of new medicines.
A joint research group clarifies a key mechanism of how retrotransposons preferentially insert in the centromere. The findings reveal strong integration biases for certain genetic elements, shedding light on rapid genome evolution.
Researchers developed AI-driven therapeutic platform mimicking viral structures to deliver therapeutic genes to target cells. The innovative approach achieved precise symmetrical structures and effectively delivered payloads, paving the way for breakthroughs in gene therapies and next-generation vaccines.
A WVU researcher creates an augmented reality training program to enhance miners' awareness of blind spots and ability to identify hazards. The training technology uses visualizations to project blind spots directly onto the trainee operator's surroundings, reducing fatalities and injuries in the mining industry.
Researchers found effective peptidomimetics that can bind to and inhibit Aurora-A's interaction with TACC3 without inhibiting its enzymatic function. This inhibition also showed promise in targeting a different protein-protein interaction between N-Myc and Aurora-A, which is crucial in childhood brain cancers.
Researchers have developed a laboratory system that can precisely control and study cell division mechanisms in real-time. By manipulating the phosphorylation state of the protein PRC1, they discovered that large-scale transitions in cytoskeleton organization can be induced in just a few minutes.
Researchers used two specialized microscopes to measure the forces that keep the nucleus centered within a living cell, providing new clues about cellular cytoplasm and organelle motion. The study found that the force required to move the nucleus in C. elegans was approximately 1/6th less than that measured in sea urchin eggs.
Researchers at Colorado State University have identified an alternate method to study changes during the DNA replication process in lab settings using genetically modified yeast. This new approach provides a less toxic and quickly reversible alternative to hydroxyurea, allowing for better insight into cell cycle arrest mechanisms.
A team of researchers has identified the USP50 protein's role in regulating DNA replication by deciding which enzymes to use during critical processes. The study found that USP50 helps cells balance nuclease and helicase activity, preventing replication defects when it is absent.
Research discovered that chloride ion channels play a role in glioblastoma cell division and proliferation. By blocking these channels, replication can be stopped, pointing to ion currents as a potential target for therapeutic approaches.
Researchers discovered that dividing bacterial cells adapt to crowded environments by slowing their growth, forming a pattern of concentric circles. This process can inform strategies for controlling the spread of harmful microorganisms, such as in infections or manufacturing.
Researchers have found that variability in when and how cells divide during embryo development leads to more optimal arrangements of cells, promoting robust tissue formation. This study challenges traditional views on the role of cell division variability in embryonic development.
A team of scientists has created a comprehensive atlas of early mammalian morphogenesis, revealing that individual events such as cell divisions and movements are highly chaotic. However, the embryos as a whole end up looking very similar to one another, with physical laws driving them to form a specific morphology shared among mammals.