Articles tagged with Molecular Genetics
Researchers developed RegVelo, an AI framework that models cellular dynamics and gene regulation to predict cellular fate decisions. The model traces developmental trajectories and simulates regulatory interactions, providing insights into hidden drivers of development and potential therapeutic targets.
Researchers found that DNA helicase HELQ promotes replication fork reversal to protect cells from toxic DNA crosslinks. This process enables stalled replication forks to reverse and stabilize, minimizing mutations and cell death. The study identifies HELQ as a critical regulator of genome integrity under replication stress.
The study reveals that human TERT is only compatible with non-human primate cells, while other species show limited or no telomere lengthening. This highlights the importance of using suitable preclinical models for telomerase-based therapies.
Dr. Dilek Colak's journey began with a childhood observation of a boy with mental illness, which inspired her to pursue a career in neuroscience. Her current work focuses on understanding autism and schizophrenia through the study of human brain organoids.
Researchers at UT MD Anderson Cancer Center have made significant advancements in targeted therapy treatments for advanced lung cancer and early-stage classical Hodgkin lymphoma. The studies showcase high response rates with novel combination therapies and a new understanding of how an enzyme affects infertility and cancer progression.
Researchers at MIT have found that chromatin can exist in two different categories: constrained and free, which affects its interaction with genes and DNA regulatory sequences. This study provides insight into gene regulation and DNA repair processes.
A study published in Cell Reports Medicine found that inhibiting RNase H2 can cause significant damage to DNA and activate the innate immune system to produce signals that attract T cells to attack the tumor. This approach could lead to improved patient outcomes for patients with triple-negative breast cancer.
Researchers developed a new framework, 'Mollifier Layers,' to tackle challenging inverse PDEs. This advance could benefit fields such as genetics and weather forecasting by inferring hidden forces that produce observable patterns.
A new study from Virginia Tech found that task switching in transplant surgeries increases one-year mortality rates by 14.8 percent, highlighting the need for efficient scheduling and workflow changes to minimize risks. The research also suggests that recovery time and surgeon experience level can mitigate these effects.
Researchers discovered a small molecule, UNI418, that destabilizes key DNA repair proteins, making drug-resistant cancer cells vulnerable to PARP inhibitor therapy. This approach restores tumor sensitivity and improves treatment outcomes.
Scientists discover that tRNA gene mutations can alter the reading of the genetic code, leading to increased protein synthesis errors. This phenomenon is linked to aging and cellular decline, with potential implications for neurodegenerative diseases like Alzheimer's.
A new study reveals that bacteria can actively limit the spread of antibiotic resistance genes by deploying molecular gatekeepers called YokF. This mechanism blocks the transfer of beneficial genes, giving microbes a competitive advantage in dense microbial communities.
Aging bone repair declines due to mitochondrial DNA structures disrupting stem cell function, reducing energy production and causing cellular senescence pathways. Targeting these structures may restore balance between bone and cartilage formation during healing.
The Phase I MYTHIC trial demonstrated a strong synergy between zedoresertib and lunresertib, showing durable regressions and consistent tumor shrinkage in patients with ovarian cancer. The combination achieved an overall disease control rate of 68.5% and a molecular response rate of 47%.
A new study reveals that cancer cells may begin escaping therapy much earlier, triggered by a stress response that drives them into a temporary drug-tolerant state. Researchers identified an early molecular trigger: NF-κB, which acts as a regulator of cellular stress and survival.
Researchers found two strategies used by bacteria to colonize new habitats: acquiring new traits and reducing genome size. This study sheds light on the evolutionary biology of soil microbes, revealing unexpected results about their adaptation to freshwater environments.
Salk Institute researchers have developed a new biological platform for studying mitochondrial DNA in human physiology, adaptation, and therapeutic development. The platform allows scientists to investigate mitochondrial DNA variation in health and disease, enabling therapeutic innovation for mitochondrial disorders.
Research in mice reveals direct gene regulation by alcohol metabolites, with varying effects on brain regions and exposure durations. Short-term exposure influences more genes and epigenetic programs compared to lengthy exposure.
A research team discovered that a protein complex consisting of SMG1, SMG8, and SMG9 ensures the efficient execution of nonsense-mediated mRNA decay (NMD). The study found that this complex is essential for maintaining the stability of NMD under various conditions.
Researchers tracked genetic changes in Arabidopsis thaliana across 30 sites over five years, finding most populations adapted to local environmental conditions. However, some populations went extinct due to genetic drift, highlighting the importance of preserving biodiversity.
Researchers at Kyoto University identified DHX29 as a central regulator of codon-dependent gene expression. They found that DHX29 preferentially interacts with ribosomes decoding non-optimal codons and recruits a protein complex to selectively repress mRNAs enriched in these codons.
A comprehensive study using integrated genomic approach resolves Hylodesmum's taxonomic uncertainties and EA-ENA disjunct distribution. The study confirms Verdesmum as nested within Hylodesmum and reveals a complex bidirectional dispersal pattern likely facilitated by mammal-mediated epizoochory.
Researchers have identified a distinct gene expression program associated with neurotransmission in the living human brain. The study combines molecular data with real-time physiological recordings, revealing a coordinated set of genes whose activity tracks with neuronal signaling.
Recent discoveries have shed light on gene expression control in tumor growth, revealing the critical role of epigenetic marks and genomic imprinting. The findings have significant implications for cancer treatment, as they suggest that disrupting the tumor's access to neural signaling may halt its growth.
Salk Institute researchers identified Med14, a protein connected to GLP-1 drug effects on pancreatic beta cells, leading to improved viability, insulin production, and stress resistance. The study suggests a potential molecular link between GLP-1 drugs and broader benefits, including type 2 diabetes susceptibility genes.
A new study from Memorial Sloan Kettering Cancer Center reveals that analyzing a patient's genomic profile can predict breast cancer resistance to CDK4/6 inhibitors. The researchers found that inheriting a BRCA2 mutation and other genetic alterations increase the likelihood of resistance. This discovery provides a new strategy for pred...
New research finds that chromosomal inversions help Atlantic silversides maintain genetic differences suited to cold and warm waters, influencing growth rates and vertebrae numbers. This discovery suggests a fundamental role for chromosomal inversions in local adaptation and may shape population responses to ocean warming.
Researchers at the University of Basel have developed a gene therapy that can potentially treat LAMA2-related muscular dystrophy, a rare and fatal muscle disease in children. The therapy has been shown to stabilize muscles and nerves and halt disease progression in animal models, with a single treatment being sufficient.
Researchers identified nine piRNAs linked to longevity, which could be detected through simple blood tests. The study suggests that these molecules may help predict survival and guide therapeutic targets for older adults.
The project aims to test whether reducing chronic inflammation triggered by DNA can help older adults stay healthier. The research focuses on retrotransposons, which become increasingly active with age, leading to tissue decline.
Engineers have refined a technology to edit individual genetic base pairs, reducing unintended edits and increasing safety for potential treatments. The new base editors could lead to better outcomes for some cystic fibrosis patients and more accurate models for drug testing.
Researchers have identified three previously unknown genotypes of Helicobacter bacteria in pygmy sperm whales stranded along the southeastern US coast. The discovery raises new questions about microbial pathogens on ocean health and their impact on vulnerable species.
Researchers identified 11 genetic regions influencing gut bacteria and roles they play, including connections to gluten intolerance, haemorrhoids, and cardiovascular diseases. The study analyzed genetic data from over 28,000 individuals, providing insights into the complex relationship between genes and gut microbiome.
A new strain of yellow rust pathogen has broken down a key resistance gene, leaving over 50% of the UK's wheat acreage vulnerable. Researchers are racing against time to find new resistance genes and breed them into modern wheat varieties.
University of California San Diego scientists have solved how the circadian clocks within microscopic bacteria precisely control gene expression during the 24-hour cycle. The researchers identified six proteins needed to rebuild this clock, generating a simplified cyanobacterial system with a clock that only needs.
Research team led by biologist Joost Woltering discovers how ancient genes from fish midline fins were 'redeployed' to establish the dorsal-ventral axis in human limbs, allowing for complex limb differentiation and adaptation for life on land.
A new study suggests blocking key protein p300 can create novel form of cellular stress in cancer cells, re-sensitizing chemo-resistant tumors. Cells produce proteins even with damaged DNA, leading to toxic buildup and stress inside the cell's internal quality-control system.
A Goethe University-led study reveals how mutations in the SPRTN enzyme cause chronic inflammation and premature ageing. The research team found that damaged DNA in the cell nucleus leaks into the cytoplasm, activating defense mechanisms and leading to chronic inflammation.
Bird retinas operate under chronic oxygen deprivation, relying on anaerobic energy production. The pecten oculi serves as a metabolic gateway, delivering sugar and removing waste products.
Researchers at the University of Chicago have discovered a light-sensitive signaling cascade in Pseudomonas aeruginosa that suppresses biofilm formation and virulence. The study, published in Nature Communications, identifies a small protein called DimA as the key trigger for this process.
Researchers have created a comprehensive map of the DNA sequences that control gene expression in human cells, identifying 2.37 million potential regulatory elements. This registry reveals previously unrecognized classes of elements and illuminates how noncoding genetic variation contributes to cell type-specific traits.
The study created a critical framework for understanding the architecture of the genome and its association with gene function in cells. The 4DN Consortium integrated data from over a dozen techniques to compile an extensive catalogue of looping interactions between genes and regulatory elements.
Researchers identified dozens of genes that regulate DNA repeat expansion, which accelerates as people age. The study found common genetic variants can speed up or slow this process by up to fourfold, linking it to serious diseases like kidney failure and liver disease.
A new study found that a widely used genomic test can accurately identify African American men with early prostate cancer at high risk of recurrence. The Decipher classifier linked to faster recurrence rates and supports more personalized treatment choices. Genomic testing may help better match patients with the right treatment intensi...
Researchers have discovered a small RNA molecule that plays a key role in controlling cholesterol production and the development of heart disease. The molecule, tsRNA-Glu-CTC, was found to boost SREBP2 activity, leading to higher cholesterol levels and increased risk of atherosclerosis.
Researchers at Pitt and UPMC Children's Hospital discovered a biomarker of complicated pediatric traumatic brain injury, which may serve as dynamic indicators of post-injury recovery. The study found that children with TBI had a different epigenetic profile compared to those with orthopaedic injuries.
Researchers discover that CDT1 overexpression suppresses DNA replication and induces DNA damage, potentially leading to genetic mutations and cancer. The study provides molecular insights into the role of CDT1 in cancer development.
Researchers develop a high-precision method to detect replication initiation sites in the human genome, discovering that cells can initiate DNA replication from almost anywhere. They also identify a protein complex called TRESLIN-MTBP that governs initiation zones and replication timing.
Researchers at the University of Washington successfully tracked salmon populations using airborne eDNA, finding that the airborne DNA concentration fluctuated with visual counts reported by the hatchery. The technique links air, water, and fish, providing a valuable tool for population health monitoring and management.
Researchers have identified regions of the human genome particularly prone to mutations, which can be inherited by future generations. The mutated stretches of DNA are located at the start point of genes and are more susceptible to errors during cell division.
Researchers at the University of Texas M. D. Anderson Cancer Center discovered that inflexible DNA within nucleosomes regulates the positioning of INO80, a chromatin remodeling complex. This unique mechanism allows INO80 to position itself on the surface of nucleosomes at the right location.
A study by University of California, Riverside scientists found that alternative RNA processing, or
Scientists at the Salk Institute have discovered a new mode of epigenetic targeting in plant cells, where specific DNA sequences guide DNA methylation patterns. This finding has major implications for understanding epigenetic regulation and could inform future strategies for epigenetic engineering.
Researchers at UC Davis have discovered that Cabernet Sauvignon retains molecular marks from its ancestors after 400 years of clonal propagation. The study used advanced genome sequencing to assess the stability of epigenetic modifications, which can influence traits like fruit quality and stress tolerance.
Researchers identified a targeted drug that blocks a specific genetic pathway to reverse tumor-driving cellular interactions, potentially restoring DNA function and benefiting patients with synovial sarcoma. The study's findings endorse a promising strategy to improve outcomes for this rare but deadly cancer.
Researchers discovered a 'sticky' molecule, P-selectin, that can cause blood clots and organ failure during COVID-19. A new mRNA therapy that drives P-selectin expression provides broad protection against coronavirus infection.
Researchers at Institute of Science Tokyo found that European eels have restored aquaporin proteins with broad solute permeability through a recent gene duplication event. The study revealed that the genes Aqp10.2b2 and b3 acquired functional diversification, enabling them to transport urea and boric acid similar to Aqp10.1.
A review highlights transposable elements' influence on gene expression, genome stability, and disease development. TEs are recognized as regulators of gene regulation and disease, offering new avenues for diagnosis and therapy.
Researchers developed a novel mouse model to visualize RNA Polymerase II during elongation, shedding light on gene expression dynamics. The study revealed dynamic patterns of gene transcription activity in various tissues and developmental states, with implications for understanding development, differentiation, and disease mechanisms.
Researchers studied MALAT1 levels in a woman with triple-negative breast cancer, finding high levels at diagnosis and decreased while receiving treatment. Notably, levels increased at a distant metastatic site, suggesting MALAT1's role in TNBC's spread. The study informs future treatments and potential clinical trials.