Articles tagged with Mrna Levels
Scientists discovered an anti-CRISPR protein that sabotages CRISPR systems in bacteria by jamming the protein assembly line. This discovery reveals a new mechanism of defense against CRISPR-based gene editing.
Researchers have identified a crucial mechanism behind nonsense-mediated mRNA decay (NMD), which removes faulty transcripts to prevent incomplete protein production. The study reveals that the SMG5 and SMG6 proteins interact directly, forming an endonuclease that cuts through RNA in a targeted manner.
Researchers at MIT developed a control circuit that can precisely regulate gene expression levels, improving the efficacy and safety of gene therapy treatments. The 'COMMAND' circuit uses microRNA to suppress gene expression, allowing for tighter control over treatment outcomes.
Researchers have discovered RNA pseudouridine as a novel diagnostic target for colorectal cancer. The study found correlations between pseudouridine modifications and clinical markers, enabling potential non-invasive diagnosis. The findings provide a molecular framework for RNA epigenetics-based stratification and targeted interventions.
This study reveals NAT10 is crucial for spermatogonial proliferation and differentiation. In Nat10-deficient mice, infertility occurs with reduced testicular sizes, germ cell depletion, and a loss of spermatogonial homeostasis.
Researchers found a biomarker, RNA Polymerase II (RNAPII), associated with tumor aggressiveness and recurrence in meningioma and breast cancers. The study developed a novel profiling technology, Cleavage Under Targeted Accessible Chromatin (CUTAC), to measure gene transcription activity from DNA, which predicted cancer outcomes.
Researchers found that olpasiran significantly lowers lipoprotein(a) levels by over 95% and reduces oxidized phospholipids, which promote atherosclerosis. The study also showed no significant effects on inflammatory markers.
Researchers found RNA damage triggers inflammation and cell death in skin after UV exposure. The ribotoxic stress response, orchestrated by protein ZAK-alpha, plays a key role in this process.
Researchers at Hokkaido University discovered that deep-sea hydrothermal vent bacteria can reduce nitrous oxide through an efficient energy metabolism mechanism. The study found that denitrification genes are negatively regulated by transcriptional regulators, suggesting a potential approach to mitigate climate change.
Researchers at Chung-Ang University have identified a crucial role for specific tRNA fragments in cancer progression, revealing their ability to regulate gene expression and influence tumor growth. The study suggests that these fragments could serve as biomarkers for early-stage cancer detection and targets for therapeutic interventions.
Researchers have created a comprehensive database of protein changes in mice tissues due to aging, providing new insights into age-related diseases. The study reveals proteins that increase with age and improve understanding of the molecular mechanisms underlying aging.
Researchers at U of T have discovered that C2H2 zinc finger proteins, which primarily bind to DNA, also regulate RNA processing through various mechanisms. These proteins modify mRNA, controlling its length and altering it after transcription.
For the first time, researchers have demonstrated how mechanical forces affect gene expression by showing that RNAP polymerase remains on the DNA template and can be pulled to start a subsequent cycle of transcription. This force-directed recycling mechanism can change the relative abundance of adjacent genes.
Researchers comprehensively reviewed cerebellar involvement in Parkinson's disease, highlighting the pathophysiological role of the cerebellum in motor and non-motor symptoms. Studies showed abnormal α-synuclein aggregation, neurodegeneration, and altered functional connectivity between the cerebellum and other brain regions.
Researchers have shown that repeated administration of lipid nanoparticle-encapsulated mRNA therapy significantly extended survival and reduced serum leucine levels in a mouse model of maple syrup urine disease. The treatment approach may represent a potential long-term universal treatment for MSUD.
Researchers developed a treatment approach using lipid nanoparticles to deliver mRNA therapy for MSUD, extending survival and reducing serum leucine levels. The study also identified a novel AAV variant with desirable biodistribution properties for targeting peripheral organs.
Scientists have discovered a novel mechanism of dosage compensation in platypus and chicken, where protein levels are balanced despite imbalanced mRNA levels. This finding challenges previous assumptions about the role of RNA in gene expression.
A new study published in Nucleic Acid Therapeutics found that siRNA reduces huntingtin mRNA levels in the cytoplasm but not in the nucleus of mouse brains, suggesting a limitation in its effectiveness for treating Huntington's disease. The research highlights the importance of understanding the structure and function of nuclear RNA to ...
Scientists improve stability and bioavailability of mRNA nanocarriers using triphenylphosphonium, leading to increased protein production in tumor tissues. The TPP-based system also shows higher mRNA levels in blood after 30 minutes compared to amine-based micelles.
Researchers at Arizona State University created a detailed map of the 3'UTR regions of RNA in C. elegans, revealing crucial elements for gene regulation and protein production. The study provides valuable insights into the machinery of gene control, shedding light on fundamental biological processes essential to human health and disease.
A study published in Clinical Infectious Diseases found that regular booster doses of bivalent vaccines can maintain a person's ability to neutralize multiple SARS-CoV-2 strains, including XBB.1.5. This is especially important for immunocompromised groups, such as solid organ transplant recipients.
A new study led by UCSF found that COVID-19 vaccine side effects like headache and tiredness indicate a strong immune response. Those with more symptoms had nearly double the antibody levels of those without, suggesting the vaccine is effective in preventing infection.
A new review emphasizes the importance of vaccination in preventing avian influenza spread among humans. The study suggests that a diverse range of vaccine platforms, including inactivated and live attenuated vaccines, as well as emerging alternatives like mRNA vaccines, will be crucial for enhancing pandemic preparedness.
Researchers found that miR-377 reduces MYC mRNA levels, leading to increased Bax and PTEN expression and decreased CDK4. This results in induced apoptosis, inhibited proliferation, and arrested cell cycle in prostate cancer cells.
Researchers investigated molecular changes in aging mouse sweat glands, finding 171 mRNAs enriched in secretory cells. Altered mRNA and protein abundance were associated with age-related declines in sweat gland function.
Researchers found that T cells and memory B cells provide durable protection against symptomatic SARS-CoV-2 infection, with levels attainable after two doses of mRNA vaccination. The study suggests a two-dose vaccination regimen for children against COVID-19.
Researchers found a shared triple network of long noncoding RNAs, microRNAs, and messenger RNAs that exacerbates Parkinson's disease symptoms in the context of COVID-19 infection. The study identified key genes and lncRNAs as potential biomarkers for PD diagnosis and progression.
Researchers identified elevated MALAT1 levels in various blood cancers, correlating with adverse outcomes. MALAT1 promotes cancer cell proliferation, migration, invasion, and metastasis through multiple mechanisms.
An experimental mRNA vaccine against CMV elicited promising immune responses, outperforming a previous vaccine candidate in preventing the virus from infecting epithelial cells. The new vaccine may protect adults against CMV, potentially preventing women from passing the infection to their babies during pregnancy.
Johns Hopkins researchers have made progress toward developing a blood test to identify disease-associated changes in the brain linked to postpartum depression and other psychiatric disorders. They identified 26 placental mRNAs present in maternal blood only during pregnancy, which reflected changes occurring inside the tissues.
Researchers at TTUHSC are studying a new approach to inhibit STAT3, a protein associated with 70% of human tumors. Disrupting STAT3 synthesis on ribosomes could lead to new cancer treatments.
Researchers at Weill Cornell Medicine have discovered that a tiny chemical modification on mRNAs, known as m6A, is key to the formation of stress granules during cell stress. Longer mRNAs dominate stress granules because they have high levels of m6A, which triggers their sequestration.
The study identifies 1,074 semi-extractable RNAs potentially involved in phase-separated membraneless organelles. These RNAs are enriched in repressed heterochromatin regions and act as hubs for RNA-RNA interactions.
A novel antisense therapy has restored fragile X protein production in human cell samples, revealing aberrant alternative splicing of messenger RNA as a key factor in fragile X syndrome. This finding offers real hope for developing new treatments and improving the lives of individuals affected by the condition.
Researchers developed a biodegradable nanoparticle that reaches dendritic cells in mice with melanoma and colon cancer, activating an immune response. The nanoparticle improves survival rates for these cancers, with half of mice surviving long-term after treatment.
A new research centre will focus on developing new types of RNA medicine for treating metabolic diseases. The centre, led by Professor Jørgen Kjems at Aarhus University, aims to create targeted treatments for conditions like diabetes and atherosclerosis.
A new method developed by Flatiron Institute researchers can diagnose COVID-19 with near-perfect accuracy, even in asymptomatic patients. The technique monitors the body's molecular response to a viral attack and measures mRNA molecules to identify an immune response.
A new study from the University of Virginia Health System found that mRNA booster shots increase the durability of antibodies to COVID-19. The boosters led to longer-lasting antibodies, even in those who had previously recovered from a COVID-19 infection.
Researchers developed a mathematical technique to measure total tumor-specific mRNA levels from bulk tumor sequencing data, associating higher mRNA levels with reduced patient survival. The study suggests this approach could serve as a prognostic biomarker for various cancers, guiding treatment selection.
A breakthrough discovery has identified a novel approach to tackle metabolic diseases by inhibiting a liver enzyme that regulates appetite and energy expenditure. The treatment, which stabilizes key proteins in the blood, resulted in significant weight loss and improved insulin sensitivity in obese mice.
This study examined reports of myocarditis after mRNA-based COVID-19 vaccination, finding a higher risk among younger males. The researchers estimated the risk based on age, sex, and vaccine type, providing valuable insights into the potential side effects of these vaccines.
Researchers at Johns Hopkins Medicine found that antibody levels against SARS-CoV-2 stay higher in people who were infected by the virus and then received protection from mRNA vaccine compared to those who only got vaccinated. A longer interval between virus exposure and first vaccine dose may enhance antibody response.
This observational study evaluates the concentration of SARS-CoV-2 antibodies in breast milk of lactating women who received mRNA vaccines. The findings suggest a correlation between serum antibody levels and breast milk antibody concentrations.
Researchers evaluated antibody levels after Pfizer/BioNTech vaccine in previously infected and uninfected individuals, finding a significant increase in SARS-CoV-2 spike immunoglobin G antibodies. The study suggests the vaccine effectively boosts immunity in those who have already been infected.
Early commercial batches of Pfizer-BioNTech's COVID-19 vaccine had lower than expected levels of intact mRNA molecules, a finding that raised concerns about the manufacturing process and its impact on vaccine potency. Regulators like the EMA and FDA are unsure of the implications for safety and efficacy.
A new Northwestern University study reveals that the percentage of African ancestry influences gene production, affecting disease risk and medication response. The research highlights the importance of considering individual ancestry in precision medicine and drug discovery for diverse populations.
Researchers create technique to observe mRNA at ribosome sites, revealing protein synthesis and cellular responses to iron. The method is applicable to any type of RNA and could be modified for other interactions.
A new statistical analysis of mRNA and protein levels in budding yeast found that mRNA levels account for 85% of differences in protein levels, amplifying the relationship between the two. This discovery contradicts previous studies suggesting that post-transcriptional regulation overrides mRNA levels.
A recent study of over 4,000 genes found that most RNA expression differences do not affect protein abundance, suggesting a previously unknown buffering mechanism regulates gene expression. This discovery highlights the importance of further analysis in studies relying on RNA measurements to characterize gene function.
Researchers found that individual neurons can react differently to electrical signals and compensate by altering their own outputs. This variability may be important in discovering underlying problems associated with brain disorders.
Researchers discovered that microRNAs primarily disable mRNA templates to control protein production. This allows for easier study of gene targets through mRNA levels rather than protein levels.
Research suggests that thermodynamic stability of DNA/DNA and RNA/DNA duplexes affects mRNA transcription levels. The study found stable sense duplexes in coding sequences and increased mRNA levels with increasing stability.
A multi-university study found that levels of fibroblast growth factors (FGFs) and their receptors were significantly lower in people with severe clinical depression. The researchers also found that those who had been taking antidepressants before death had levels closer to normal.
Researchers investigated post-transcriptional regulation of COX2 in tumor cells. They found that microRNA-21 plays a crucial role in modulating COX2 expression by targeting its mRNA for degradation.
Researchers discovered that certain genes are involved in both RNA interference and nonsense-mediated decay, a protective mechanism that prevents defective protein production. The findings provide valuable clues to the relationship between these two cellular processes.
Researchers at the Howard Hughes Medical Institute solved the structure of the reovirus core, a double-stranded RNA virus that bears similarity to pathogens such as rotavirus. The study reveals how the core synthesizes, modifies, and exports viral messenger RNA, ultimately leading to viral replication and takeover of host cells.
Researchers at Duke University have identified 31 genes that react to cadmium exposure, including 22 previously unknown genes. These findings offer new insights into the toxic effects of cadmium and potential biomarkers for monitoring contamination.
A chemist at Washington University has created a molecule that mimics the behavior of ribozymes, acting as a catalyst to dismantle dangerous genetic codes involved in viral and fungal diseases, certain cancers, and HIV. The discovery shows great promise for improved drug treatments.
Scientists have visualized individual mRNA transcripts for the first time, revealing a cyclical transcription process that hits its peak in 30 minutes. The technique also shows that genes are transcribed at a limited rate by the number of polymerase/mRNA units at a gene's stopping point.