Researchers from Aalto University have developed DNA nanostructures for smart drug-delivery vehicles and molecular devices. These structures provide new applications in molecular medicine, such as targeting cancer cells with tailored payloads.
EPFL scientists have developed a method that improves the accuracy of DNA sequencing up to a thousand times by slowing down the process using nanopores and viscous liquids. This breakthrough paves the way for better and cheaper DNA sequencing, enabling scientists to detect mutations and identify different organisms with greater precision.
A modular system of proteins can detect a specific DNA sequence in a cell and trigger a response, such as cell death. The system can be customized to detect any DNA sequence and trigger a desired response, including killing cancer cells or cells infected with a virus.
A new study has found that detecting small fragments of tumor DNA in a patient's pre-surgery serum samples can predict early recurrence of hepatocellular carcinoma and guide treatment. This non-invasive method may lead to improved survival rates for liver cancer patients.
Researchers at Rockefeller University have made new discoveries about the DNA repair process, uncovering previously unknown functions of histone H2AX. They found that a specific portion of the protein interacts with phosphorylated H2AX, facilitating the repair of double-stranded breaks in DNA.
Researchers at the Salk Institute have identified a critical difference in how cells respond to DNA breaks versus viral infections. The discovery reveals that cells can selectively neutralize viral DNA without triggering a global response, which could lead to the development of new cancer-selective viral therapies.
Researchers from North Carolina State University have discovered how two important proofreader proteins, MutS and MutL, work together to signal the body's repair mechanism. The proteins use a unique communication system involving PCNA, which helps them identify and correct errors during DNA replication.
Scientists at UEA have discovered a way to switch the structure of DNA using copper salts and EDTA, enabling potential applications in nanotechnology and DNA-based computing. This breakthrough could also be used for detecting toxic copper cations in water.
Researchers from LMU Munich have discovered that human DNA repair enzymes employ a 'pincer' strategy to target damaged DNA, using a sugar molecule as a key component. This finding sheds new light on the complex process of DNA repair and its importance in maintaining genome stability.
Scientists at MD Anderson Cancer Center discovered the critical role of fumarase enzyme in DNA repair, revealing a key mechanism for reversing genetic damage leading to cancer and therapy resistance. The study's findings have potential implications for developing new cancer treatments by inhibiting DNA-PKs and fumarase.
Researchers at the University of Toronto have discovered a motor protein complex that transports severely damaged DNA within cells. The discovery sheds light on how cancer operates and could lead to new anti-cancer drug targets.
Researchers discovered that cancer cells incorporate chemically modified nucleosides into their DNA, which is toxic to them. The study found that modifying these nucleosides could be used as a specific anti-cancer agent, exploiting epigenetic changes in cancer cells.
Researchers at Lomonosov Moscow State University discovered a new DNA repair mechanism that can detect and fix single-stranded breaks in histone-bound DNA. This breakthrough opens up new avenues for treating neurodegenerative diseases such as Alzheimer's.
A team of researchers from the University of Cambridge and the Babraham Institute has discovered that a naturally occurring modified DNA base, 5-formylcytosine (5fC), is stably incorporated in the DNA of many mammalian tissues. This rare 'extra' base may play a key role in regulating gene activity.
Researchers at UT Austin found a surprising link between cross-shaped DNA structures and human cancer, with small cruciforms enabling mutations that increase cancer risk. High-performance computing helped identify hotspots of genetic instability in cancer genomes.
A new study found that DNA breakage is a natural process that allows the brain to learn and generate memories, but weakens with age. Researchers discovered that DNA damage can lead to increased expression of genes involved in learning and memory, which could be detrimental as we age.
Researchers at Max Planck Institute of Biochemistry have analyzed the protein composition of the DNA replication machinery in response to damaged DNA. They found that over 90 proteins are recruited to aid in repair, including many known factors as well as new proteins with unknown functions.
Researchers at UNC School of Medicine have created a method to find where DNA repair happens throughout the entire human genome. This breakthrough could lead to better and more effective cancer drugs or improvements in existing ones.
Researchers at Johns Hopkins Medicine discovered that neurons use minor 'DNA surgeries' to toggle their activity levels, shedding light on brain disorders and learning. The study found a mechanism where Tet3 levels respond to synaptic activity, enabling neurons to maintain consistent levels of communication.
Researchers at Arizona State University have identified a new mechanism of charge transport through DNA, differing from previously recognized patterns. The discovery has important implications for the design of functional DNA-based electronic devices and understanding health risks associated with oxidative damage to DNA.
A new study by Lomonosov Moscow State University researchers clarifies the DNA alarm-system, which detects single-strand breaks and activates kinase ATM to signal repair. This system prevents cancer-causing mutations and cell death.
Researchers found DNA uncoils asymmetrically from nucleosomes like a yoyo, affecting protein production and genetic mutations. This discovery reveals the importance of DNA flexibility in cellular processes.
A study found Sall4 protein promotes DNA repair in embryonic stem cells, potentially aiding cancer cell survival. This discovery raises the possibility of targeting Sall4 for cancer treatment.
Researchers at KU Leuven developed a simple and effective way to untangle DNA using a 'rolling droplet' technique. The method involves injecting genetic material into a droplet of water and dragging it over a glass plate covered with a sticky polymer, resulting in longer and straighter DNA strands that can be studied under a microscope.
Research reveals that DNA sequences in 'gene deserts' can regulate gene activity elsewhere by forming DNA loops, increasing cancer risk through wormhole-like effects. The study provides new insights into the role of long-range genetic regulation in cancer development.
A study found that cell free DNA analysis is less effective than sequential screening for detecting all fetal chromosomal abnormalities. Sequential screening detected an 81.6% success rate and a 4.11% false positive rate, while cell free DNA detection had a lower 68% success rate at a one percent screen positive rate.
Researchers at the University of Illinois at Chicago found that damaged DNA can cause a molecule to slow down its patrol, giving it more time to recognize and initiate repair. The protein XPC, important for DNA repair, stalls at damaged sites due to twisted damage, allowing it to open and fix the damage.
Researchers develop a technique to label and track new DNA pieces, revealing hotspots for genetic flaws. These sites are crucial regulatory switches that can lead to genetic diseases or cancer.
Researchers have identified widespread incorporation of ribonucleotides in genomic DNA, with hotspots found in nuclear and mitochondrial DNA. The Ribose-seq technique allows for the precise location of ribonucleotides, which can affect genome stability and function.
Researchers at ETH Zurich have developed a method to amplify gene samples containing damaged DNA adducts, which are common in cancer. This breakthrough could enable the analysis of molecular mechanisms involved in cancer initiation and risk factors.
The university's forensic geneticist will use the grant to develop and improve 'DNA intelligence' tools that can predict eye, hair, or skin color from genetic material. This technology will aid investigators in identifying unknown suspects and solving cold cases.
Researchers at MIT have developed a new computer model that allows them to design the most complex three-dimensional DNA shapes ever produced. The model enables nanometer-scale precision and can be used to create DNA scaffolds for anchoring proteins, chromophores, and nanoparticles.
Researchers at Stanford University School of Medicine have discovered an enzyme that repairs damaged DNA but can also cause destruction. The study found that endonucleases, which are attracted to DNA/RNA hybrids, cut the DNA and damage it when present.
Researchers found that plasmid DNA attached to a rocket exterior survived suborbital spaceflight, re-entry, and landing conditions. The study showed that up to 53% of the DNA retained its full biological function, with 35% remaining functional after heating up to 1000°C.
Researchers used time-lapse crystallography to show that DNA polymerase inserts damaged molecules into DNA strands, triggering cell death in response to environmental exposures. This process can lead to various human diseases, including cancer, diabetes, and cardiovascular disease.
A team of scientists from Arizona State University and IBM have developed a prototype DNA reader that can distinguish individual chemical bases of DNA. The device is thousands of times smaller than the width of a human hair and could make whole genome profiling an everyday practice in medicine.
Researchers at KU Leuven discovered that HIV's integration site determines disease progression. The team found that manipulating the integration site can lead to faster disease progression in some cases, but also opens up possibilities for developing new therapies by targeting safer regions of host DNA.
Researchers at Berkeley Lab and UC Berkeley have developed a method to produce graphene nanopores with integrated optical antennas, enabling direct optical DNA sequence detection. This approach opens new avenues for simultaneous electrical and optical nanopore DNA sequencing and regulating DNA translocation.
Researchers will develop algorithmic methods and models to aid in complex DNA mixture interpretation, including identifying multiple contributors and determining match strength. The goal is to achieve accurate and reliable methods for interpreting forensic data from physical evidence.
Scientists at Harvard's Wyss Institute have designed the first large DNA crystals with precise depth and complex 3D features, enabling the creation of revolutionary nanodevices. The breakthrough uses a modular 'DNA-brick self-assembly' method to build complex structures with nanometer precision.
Researchers pinpoint key moments in the beginning of DNA replication, including structural details about the enzyme that unwinds the DNA double helix. The study's findings offer insights into how the enzyme becomes reactivated to begin its work splitting the DNA.
University of Illinois researchers use charged graphene to control the movement of DNA through a nanopore, allowing for faster and more accurate DNA sequencing. The study reveals that changing the graphene's charge can stop or speed up DNA movement, and even force it into specific conformations.
Researchers discovered that DNA scaffolding plays a crucial role in controlling gene expression by forming topologically associated domains. These domains contain super enhancer regions that enhance or repress gene activity.
Researchers at Lund University have discovered that viruses can convert their solid DNA to a liquid form, making it easier to infect cells. This temperature-dependent phase transition could lead to the development of new medicines targeting virus DNA, potentially reducing infection capability and spreading.
A new DNA isolation technique using MagnaCel paramagnetic cellulose particles has been shown to improve the quality and quantity of DNA extractions across a wide range of flowering plants. This method outperformed traditional techniques like CTAB and DNeasy, providing an average of twice the DNA yield and more consistent DNA purity.
Researchers at Johns Hopkins have identified a highly sensitive means of analyzing tiny amounts of DNA. The new analytical method compares favorably with existing techniques, enabling the detection of small amounts of DNA in samples.
The researchers created a new standard for large-scale DNA origami structures, enabling applications in biomedical research and nanoelectronics. The breakthrough involved developing a custom scaffold strand and cost-effective method for synthesizing staple strands.
Researchers discovered that as mice age, their primary DNA repair process fails and is replaced by a less effective mechanism, leading to increased mutations in critical tissues. This finding may explain why damaged DNA contributes to aging-related illnesses like cancer.
Scientists have discovered that cellular RNA can be used to repair DNA breaks in yeast, providing a novel mechanism of genetic recombination. This process reveals the existence of a new way for cells to maintain their genome stability, which could potentially lead to new treatments for genetic diseases.
Scientists at Washington State University have discovered a critical step in the DNA repair process that could lead to new therapies for hereditary diseases. They found that a specific protein must be 'unbuckled' to allow easy access for the DNA repair crew, and this discovery may lead to targeted gene therapy.
Scientists at the University of Illinois have discovered a single-layer sheet of molybdenum disulfide (MoS2) that can sequence DNA more accurately and quickly than existing materials. The new material outperforms graphene, which had limitations due to DNA sticking to it.
A team of researchers has identified a unique molecular mechanism involved in DNA duplication during cell division, revealing how a key enzyme governs DNA through a gated system. The study suggests a route for stopping cell division in diseases like cancer by controlling the entry point of the helicase onto DNA.
A team of researchers at Montana State University published a paper on how DNA responds to ultraviolet light, revealing its super-fast mechanism to resist damage. The findings advance our understanding of the genetic code's resistance to UV rays, which can lead to skin cancer and aging.
Recent studies have shown that clustered DNA mutations are common in cancer development and may result from the process of DNA repair. The discovery provides a mechanism to potentially explain how genetic changes form in human cancers.
Aarhus University researchers have created an easier method to tag proteins with DNA, enhancing diagnostic techniques, nanotechnology, and disease treatment. The new method allows for controlled conjugation of macromolecules, making it possible to attach chemotherapeutics to antibodies while preserving their recognition element.
Researchers found that only 8.2% of human DNA has a clear function, with most being 'junk' DNA. This figure challenges the previous claim of 80% functional DNA, highlighting the need for a more precise definition of 'function'.
A new protease, Wss1, has been identified as a safeguarding factor that removes DNA-protein crosslinks, enabling cells to duplicate their genome. Cells lacking Wss1 are highly sensitive to damage and suffer from genomic instability.
Scientists from Brown University used a specific type of virus to study the interaction between polymer strands like DNA and tiny holes, known as nanopores. The findings may lead to breakthroughs in DNA sequencing and pathogen detection.
Researchers have developed a method using DNA origami to turn one-dimensional nano materials into two dimensions, enabling the creation of any number of shapes. The breakthrough offers potential to enhance fiber optics and electronic devices by reducing size and increasing speed.
Researchers at NYU Langone Health discovered a robust backup DNA repair mechanism in yeast cells that prevents common genetic mutations. This finding suggests a similar system may exist in humans, providing potential new targets for controlling some cancers and treating Aicardi-Goutieres syndrome.