Articles tagged with Gene Expression
Scientists discovered that a temporary change in gene regulation can be inherited for at least 15 generations in C. elegans without altering the DNA sequence. This epigenetic inheritance occurs through a succession of mechanisms, allowing organisms to respond to changing environmental conditions.
Researchers identified two opposing patterns of brain gene activity in mice carrying autism-risk mutations, which vary by sex and respond differently to experimental drugs. The patterns, which are shared across multiple analyses, suggest that many different genetic mutations converge into a limited number of molecular brain states.
Researchers developed a new brain imaging measure, CCSI, to study how blood flow and cellular organization align across the brain. CCSI revealed patterns of blood flow and cellular density that correlated with mitochondrial activity and energy demands, offering new insights into brain function and potential treatments for diseases.
Researchers have created the first comprehensive atlas of DNA's physical properties, revealing how its sequence influences genome regulation and evolution. The study analyzed 2,080 unique DNA fragments and found that certain sequences can preserve physical properties necessary for DNA function, potentially influencing genome evolution.
Dr. Sophie de Vries receives funding to study how plants balance immunity with cooperation, while Dr. Tristan Stöber works on developing AI systems that can build accurate internal models of the world. Professor Elisa Oberbeckmann investigates gene regulation mechanisms.
Researchers found altered gene expression in wharf roach guts after consuming expanded polystyrene, but no significant impact on lifespan. The gut microbiome showed little change, but rare microbes were detected in EPS-fed specimens. This highlights the need to manage EPS waste carefully and prioritize coastal cleanup efforts.
Researchers found that meal timing programs the liver's daily rhythms and can have serious metabolic and health consequences when out of sync. The liver uses food signals to activate metabolic pathways, which can conflict with the body's natural circadian clock, leading to health issues.
A new blood-based approach developed by Kumamoto University researchers detects breast cancer recurrence by analyzing nucleosome structure in circulating DNA. The study identified genomic regions associated with treatment resistance and recurrence, promising a low-invasive monitoring method for patients.
Scientists in the University of California San Diego laboratory used AI to decipher the 'initiator' DNA sequence, which is responsible for gene activation. The researchers found that about 60% of human genes contain the initiator, enabling the prediction of DNA mutations that can lead to various disorders.
Researchers at Dongguk University have developed an innovative gene switch that uses electromagnetic fields to control gene expression. The switch, which targets the Lgr4 gene, demonstrates precise activation with no detectable adverse effects, making it a promising platform for non-invasive gene therapies.
Researchers from USC-led study found that different epigenetic clocks capture distinct aspects of cellular aging, while introducing new gene-expression based clocks with stronger predictive power. These tools can better predict age-related disease and mortality by examining DNA methylation patterns and gene expression.
A study by Dawood Darbar and colleagues found that rare genetic mutations converge with common genetic variants to disrupt the heart's electrical activity, leading to early-onset atrial fibrillation. This additive effect amplifies the risk of stroke and other cardiovascular complications.
Co-transcriptional splicing plays a critical role in regulating chromatin structure, mRNA maturation, and protein diversity. The review identifies key detection methods, regulatory mechanisms, and therapeutic applications for this process.
A new study reveals that avocado trees alternate between male and female flowers based on a single gene that evolved about 42 million years ago. This genetic mechanism helps prevent self-pollination and inbreeding, allowing avocado breeders to sort seedlings more efficiently.
Researchers used advanced 3D genome mapping technology to study prostate cancer cells and discovered a new feature of gene control networks that could help fight cancer. The study found that enhancers work cooperatively in 3D networks, with some acting as central hubs that control many genes.
Researchers found a high frequency of MIR142 gene mutations (37.1%) in primary CNS DLBCL, exceeding systemic DLBCL data. The study suggests that these mutations may disrupt miRNA function and require further investigation for potential clinical applications.
Researchers developed a new computational approach to identify genes that characterize different cellular states from mRNA-seq data, offering more accurate and interpretable analysis of complex biological data. The Cartesian Distance-Based Gene Expression (CDBGE) algorithm was evaluated using multiple publicly available datasets, demon...
Hepatocellular carcinoma (HCC) gene signatures can predict prognosis and respond to immune checkpoint inhibitors. However, validating these signatures across different platforms and overcoming ethical concerns hinder their widespread adoption. Integrating multi-omics approaches with liquid biopsy holds promise for personalized therapy,...
This study found that SNCA genetic variants are associated with MSA, and specific α-synuclein transcript levels are altered in MSA patients. The results suggest the importance of analyzing different SNCA transcript variants for biomarker research and understanding MSA pathology.
Researchers discovered a new framework explaining how cells regulate genes, which operates out of thermodynamic equilibrium and costs energy. The 'optimal switching principle' balances random on/off switching with precise average expression patterns, optimizing information flow.
The NF-κB signaling pathway plays a central role in pathogenesis and therapeutic targeting of immunological diseases. Dysregulation underpins many conditions, making it a crucial target for treatment. Emerging concepts like ubiquitin code editing and spatial immunology hold promise but require experimental validation.
Next-generation BET inhibitors targeting BD2, PROTAC degraders, and rational combinations offer renewed hope for treating solid tumors. Clinical trials have shown modest responses, especially in NUT carcinoma and castration-resistant prostate cancer.
A study published in Cancer Cell identified a six-gene signature in microscopic colorectal cancer liver metastases that may help predict recurrence after treatment. The findings suggest these tiny tumor deposits could serve as a tissue-based marker of residual cancer cells, recurrence risk and chemotherapy resistance.
Research found that Parkinson's disease triggers shared 'stress responses' but also differs between men and women at the cellular level, particularly in how glial cells manage energy and protect nerve connections. This discovery may lead to more personalized treatments for patients.
A new gene circuit technology has enabled cells to autonomously generate programmed responses, processing multiple molecular signals at once. The RATEX platform allows cells to compute and respond to various types of molecular information.
A new AI-based tool identifies hundreds of molecular signals associated with thrombosis and improves the characterization of people with different risk profiles. By integrating clinical, genetic, and transcriptomic information, researchers can more accurately describe individuals with varying levels of risk.
Recent studies suggest that p16INK4a+ cells, previously thought to be non-beneficial due to their association with aging, actually contribute to tendon regeneration. These mesenchymal cells produce collagen and factors promoting new blood vessel and nerve growth, crucial for normal tendon function.
A new AI model, SpliceSelectNet, accurately predicts RNA splicing by capturing long-range DNA signals. The model's hierarchical Transformer architecture preserves high computational efficiency while maintaining single-nucleotide resolution, enabling accurate analysis of genomic regions.
Researchers developed a groundbreaking approach to prioritize schizophrenia-associated genes by analyzing genetic data from over 102,000 individuals. This study uncovered 641 previously unrecognized genes associated with schizophrenia, shedding light on the complex interactions between distant genetic variants.
Researchers from Kyushu University discovered that the circadian clock protein BMAL1 drives macrophages towards a pro-inflammatory M1 state by activating inflammatory signaling pathways. This mechanism links the body clock to intracellular metabolism and immune function, offering new insights into treating inflammatory diseases.
Researchers at Texas Children's Hospital identified a set of dysfunctional genes and specific cell types that are vulnerable to genetic changes in female mice modeling Rett syndrome before symptoms appear. They found that even healthy cells with normal MECP2 gene had changes in gene activity due to neighboring defective cells.
Researchers have uncovered the structural basis of Argonaute assembly, revealing that chaperone proteins hold it in an open conformation allowing miRNA loading. The study also found that RNA plays a key role in guiding Argonaute folding.
A new study has analyzed over 2100 samples to build a genetic dataset containing more than 500 million unique genes, revealing the immense potential of deep-sea biodiversity for developing new technologies. The research found that despite vast genetic diversity, deep-sea organisms rely on stable, core designs to survive extreme conditi...
Researchers discover that breast cancer cells exploit protective systems in bone marrow to remain dormant, using Notch2 signaling and genes like CXCR4 and TIE2. This dormancy allows cells to reactivate years later, leading to secondary tumors.
Researchers have discovered a previously underappreciated mechanism that helps immune cells respond rapidly to infections by altering RNA splicing. This study provides new insights into immune-mediated diseases such as rheumatoid arthritis and lupus, and may lead to more targeted therapies.
Researchers discovered that overproduction of a DNA repair protein creates DNA damage mimicking BRCA mutations, which may respond to targeted treatments. Tumors with high levels of EXO1 protein exhibit characteristics similar to BRCA-mutant cells, suggesting personalized therapies could be effective.
Researchers at Kyushu University identified a molecular mechanism behind keel formation, revealing that a developmental
Researchers develop machine learning analysis method SPERRFY that combines datasets on brain region connections and gene activity. The study finds a 'GPS' system of genes that predict which brain regions are connected, supporting the chemoaffinity theory and offering new avenues for research into brain development and disease.
Researchers developed a 13-gene panel and machine learning model to predict TNBC patient responses to chemotherapy, identifying macrophage subtypes associated with treatment outcomes. The study provides novel insights into the gene-expression programs and tumor microenvironment of early-stage triple-negative breast cancer.
Researchers from The University of Osaka have discovered a two-factor system that controls stem cell differentiation, involving the stabilization of the CoREST corepressor complex at gene promoters. This process prevents stem cells from drifting towards differentiation and maintaining their pluripotency.
A new study reveals that early signs of neurodegeneration in individuals with Down syndrome can be detected as early as birth. Researchers found widespread dysregulation of genes and pro-inflammatory patterns in glial cells, suggesting a critical role for chronic inflammation and cell death in the development of the condition.
Researchers mapped over 1.25 million cells to reveal sex-specific differences in the human immune system. Female immune cells exhibit higher levels of B cells and regulatory T cells, but also a greater predisposition to autoimmune diseases like lupus due to their highly reactive profile.
Research finds GADD45B induces MST1 expression by promoting DNA demethylation, exacerbating apoptosis and intestinal injury in I/R. GADD45B/TET1/MST1 axis may represent a viable therapeutic strategy for I/R injury.
Researchers at MIT discovered that gene circuits can reshape DNA folding and affect gene expression in human cells. The study found that rearranging genes along a DNA strand, or 'gene syntax,' can amplify or suppress the expression of neighboring genes.
Researchers identified stage-specific gene expression changes that occur during cellular senescence, revealing an early immune-activating response and a shift in cellular priorities. This study offers new insight into the molecular mechanisms of aging and highlights potential therapeutic strategies for delaying age-related decline.
Researchers developed RF-SIRF, a quantitative method to detect and map reversed DNA replication forks with single-cell resolution. The study identified unique epigenetic codes for DNA replication stress that can be further examined to understand genomic stability, aging, and treatment response.
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 study mapped early molecular and cellular changes in the jaw joint that may trigger temporomandibular joint osteoarthritis. The research found structural and molecular changes in joint tissues, including inflammation, fibrosis, and metabolic shifts. Single-cell sequencing revealed diverse cell populations interacting within the synov...
A new study found that every type of epigenome protein produces a distinct pattern of gene expression, surpassing the on/off switch functionality. This discovery has significant implications for cellular engineering, enabling more dynamic control over cellular behavior and potential applications in biomanufacturing and bioproduction.
A custom-built AI system helped uncover how bacterial communities organize themselves, showing that early moments of a biological transition carry more information than previously considered. The findings bring new insight into the relationship between genotype and phenotype in Myxococcus xanthus.
Exposure to terahertz radiation induces significant changes in purine metabolism, pantothenate/CoA biosynthesis, and the pentose phosphate pathway. Gene network analysis reveals associations with membrane raft reorganization and receptor-mediated signaling involving epidermal growth factor receptor and G-protein subunits.
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.
In a breakthrough study, researchers successfully integrated neuronal precursor cells into biobots, resulting in the formation of functional nervous systems. This development has significant implications for neuroscience, bioengineering, and regenerative medicine, enabling the investigation of fundamental questions about the origin of ...
Researchers investigated temperature-dependent sex determination in leopard geckos, finding that temperature influences sex development during a specific window of embryonic development. Early genetic changes, including the activation of male and female developmental pathways, occur before physical differences become apparent.
Scientists at St. Jude Children's Research Hospital developed BOUQUET to analyze 3D-enhancer architecture in machine learning-based graph theory framework, identifying protein condensates and predicting gene expression. The findings provide new insight into how cells regulate genes controlling specialized identities.
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.
Researchers created a cell-free system to study transcription drivers and revealed fundamental features of the transcription cycle in Mycobacterium tuberculosis. The method enabled precise design of therapeutics targeting key processes, which could help combat this pathogen.
A gene therapy platform successfully mapped the living brain noninvasively, using engineered proteins to track gene expression in different brain regions. This technology has the potential to reveal critical information about cellular activity and neurological disease progression.
Dr. Gregory Reeves' team has developed a method to measure the amount of Dorsal protein in the nucleus, revealing its interaction with DNA and providing a predictive model for therapeutic purposes. The study aims to control cellular processes and prevent diseases like cancer.