Articles tagged with Rna Editing
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High levels of ADARdd overexpression lead to abundant off-target RNA editing in rice protoplasts, characterized by pronounced stochasticity and low efficiency. The study provides guidelines for improving RNA editing accuracy in plants and highlights the need for rigorous validation of proximity-directed RNA editors.
A study by University of California, Riverside scientists found that alternative RNA processing, or
Scientists have cataloged hundreds of target sites and widely varying editing rates for RNA editing in more than 200 individual cells of tonic and phasic motor neurons. The study found that most sites were edited at rates between extremes, and that some edits altered proteins involved in neural communication and function.
Researchers developed an RNA-based therapeutic strategy targeting mutant KRAS genes, stimulating the immune system to attack tumours. The treatment, combining antisense oligonucleotides and immunomodulatory RNA, effectively killed cancer cells in laboratory studies, reducing tumour burden and extending survival.
Researchers at UC San Diego have created a new genetic editing approach that uses small nuclear RNA base editing, which can modify the genetic code with greater precision and safety than CRISPR. This method has the potential to treat various diseases, including neurodegenerative, cardiovascular, and immune disorders.
Researchers develop RNA-based molecular tool to interfere with phage replication, allowing for targeted therapy against bacterial pathogens. The approach has potential applications in treating infections caused by hospital germs like Pseudomonas aeruginosa.
A study by University of Fukui researchers reveals that two adjacent gene pairs in Neurospora crassa regulate antiviral response and symptom induction via RNA editing. The findings indicate that the modification of master transcription factor genes is crucial for controlling fungal antiviral responses.
Scientists have identified a brain molecule called NEAT1 that appears to play a central role in triggering light sensitivity (photophobia) during migraines. By disrupting the normal balance of nerve signaling and pain regulation, NEAT1 makes nerves more sensitive to light.
Researchers at KAIST have identified a key mechanism behind neuroinflammatory responses in Parkinson's disease, which is regulated by an RNA editing enzyme called ADAR1. This discovery suggests that targeting this enzyme could serve as a novel therapeutic strategy for treating the disease.
Researchers at Rice University have gained insights into ADAR1's molecular mechanisms, which could lead to improved treatments for cancer and autoimmune diseases. The study found that ADAR1's editing activity depends on RNA sequence, duplex length, and mismatches near the editing site.
A team of researchers has identified a mechanism that interferes with the splicing process in a more subtle way, leading to cell death. The study reveals that spliceosome subunits U4, U5, and U6 are normally stabilized by protein USP39, but when mutated or absent, stability is compromised, causing incorrect connections during splicing.
Research from Bar-Ilan University reveals RNA editing is essential for fruit flies to detect odors that warn of danger and engage in social interactions necessary for survival. The study found that flies with unedited RNA struggled with their sense of smell and social communication.
Researchers have developed two new methods to produce circular RNAs, which can silence genes and serve as templates for making therapeutic proteins. These circular RNAs display enhanced stability and biological activity in heart muscle cells and neurons.
A new research project aims to create a highly effective and selective biological herbicide targeting Palmer amaranth. The researchers will use synthetic biology techniques to develop RNA molecules known as Ribozymes that can influence specific gene expression, eliminating the weed through a specific infection.
Researchers found major differences between postmortem and living prefrontal cortex brain tissues, with higher levels of RNA editing in postmortem tissues. These discoveries will shape the development of diagnostics and therapies for brain diseases, highlighting the need to study both living and postmortem samples.
A University of Bonn study reveals that plants use special molecules called Tipp-Ex proteins to correct defective gene copies. However, these proteins are only permitted to work in chloroplasts and mitochondria, not in the cytosol where they could cause fatal miscorrections.
Researchers at Tokyo Medical and Dental University have developed a novel method for coating engineered messenger RNA molecules with polyethylene glycol (PEG), allowing selective delivery to the spleen. This breakthrough enables fine-tuned control over mRNA therapy, facilitating effective treatment of diseases previously considered inc...
Researchers have identified the first inhibitors of the cancer-related RNA-modifier METTL16, which prevent its interaction with RNA. This breakthrough lays the foundation for novel RNA-targeting therapeutics and better investigation of METTL16's role in disease and health.
A recent study by the Hebrew University proposes a new etiology for early stages of type 1 diabetes, attributing it to disrupted RNA editing within pancreatic beta cells. This perspective challenges long-held beliefs about viral involvement, suggesting potential implications for treatments and cures.
Researchers found that individual neurons can stochastically mix and match up to eight different editions of the Complexin 7A protein, leading to varying levels of glutamate release. This variation may endow each neuron with fine degrees of communication control, allowing for robust tuning of multiple features of neuronal output.
A breakthrough treatment targeting bone marrow cancer cells destroyed 90% of multiple myeloma cells in laboratory tests and 60% in human tissue samples. Researchers developed lipid-based nanoparticles containing RNA molecules that silence the CKAP5 gene, inhibiting cancer cell division.
Researchers investigate how bacteria modify host RNA using effector proteins to ensure their survival, a process previously unknown in eukaryotes. The team aims to decipher the mechanisms behind this process and its benefits for the bacteria.
Molecular biologists Ruslan Afasizhev and Inna Afasizheva have discovered the architecture of molecular machines involved in RNA editing in a disease-causing parasite. This understanding could potentially help treat African sleeping sickness, which is usually fatal and has limited treatment options.
A new database linking RNA editing to blood cell differentiation has been established, providing a platform to accelerate research on leukemia and other pathologies. The REDH database includes detailed information on RNA editing sites in healthy and malignant hematopoietic cells.
Researchers have discovered that octopuses and cephalopods use RNA editing to rapidly respond to environmental temperature changes. By tweaking their protein function, these animals can acclimate to cold water, but not rapid changes. The study reveals a unique mechanism of genetic adaptation in these species.
Researchers found that two-spot octopuses produce different neural proteins under warm versus cool conditions by editing their RNA. This rewiring likely protects their brains and may be used widely amongst octopuses and squid. Temperature-sensitive RNA editing occurs rapidly, with significant changes occurring within days.
Researchers found reduced editing efficiency of GluA2 mRNA in ALS patients' cerebrospinal fluid, correlating with longer disease duration and advanced symptoms. This discovery could lead to the development of therapies targeting RNA editing for treatable ALS cases.
Researchers at Harvard University developed a novel RNA sense-and-respond circuit, DART VADAR, which utilizes an enzyme to detect specific molecular markers of disease and cell types. This enables highly specific treatments for various diseases by triggering the translation of therapeutic genetic payloads.
Mount Sinai researchers catalogued thousands of sites in the brain where RNA is modified throughout the human lifespan, increasing with age. This study provides a model depicting how A-to-I editing evolves over a lifetime, shedding light on its role in health and disease.
A team of researchers has successfully transplanted the RNA editing machinery from a moss into human cells, including kidney and cancer cells. The corrected mechanism was found to work on over 900 targets in nuclear transcripts, offering a potential basis for inducing specific changes in human cells and treating hereditary diseases.
Researchers developed a new RNA editing technology that makes efficient use of native ADAR enzymes to correct disease-causing mutations in RNA. The technology holds promise as a gene therapy for treating genetic diseases like Hurler syndrome and cystic fibrosis, with promising results in mouse models.
Researchers at Osaka University studied mice with mutations in ADAR1 and found that impaired Z-RNA recognition contributed to abnormal growth, organ development, and chronic inflammation. This study highlights the importance of proper RNA editing and its relation to Aicardi-Goutières syndrome.
A research group at Osaka University has developed a new tool for sequencing various types of RNA base modifications, including microRNA modifications. They successfully detected two types of chemical base modifications simultaneously using a single-molecule quantum sequencer.
Researchers discovered RNA editing events in lung adenocarcinoma and identified a new molecular subtype EC3 with the poorest prognosis. A simplified prediction model using eight RNA editing sites accurately distinguishes this subtype, which is associated with sensitivity to specific chemotherapy drugs.
The ADAR1p110 isoform regulates genome stability at chromosome ends, preventing R-loop accumulation and preserving telomere stability. In cancer cells, depletion of ADAR1p110 leads to extensive telomeric DNA damage and arrested proliferation.
A study published in Genome Biology found that small changes in RNA due to RNA editing can have large effects on gene expression and phenotype. The researchers identified 3,117 unique RNA editing events associated with genetic variation, including those linked to complex traits or diseases.
Researchers at NUS found that unedited COPA protein promotes cancer, while edited version suppresses a key molecular signalling pathway. The team is now exploring ways to boost natural RNA editing mechanisms to combat cancer.
Researchers create an artificial C-to-U conversion system using APOBEC1, allowing for the restoration of mutated genes and potentially treating genetic disorders. The system was tested on blue fluorescent protein (BFP) RNA with a 199T>C mutation, showing high editing efficiency.
Researchers used RNA editing to correct a genetic error causing Rett Syndrome, repairing half of the normal protein in three types of neurons. The approach shows promise for treating the disorder, which affects 350,000 individuals worldwide.
Researchers have discovered a novel protein, death-associated protein 3 (DAP3), that drives the growth of cancers by altering genetic code. DAP3 inhibits RNA editing, which normally corrects genetic errors, acting as an oncogene and promoting cancer development.
A new study has found that the loss of RNA editing in the brain may contribute to the development of Alzheimer's disease. The research, published in Molecular Brain, replicated this process in mice and discovered it led to the loss of synapses, a key feature of the disease.
RESCUE, a new CRISPR platform, allows for targeted RNA edits previously impossible, offering a critical gap in the toolbox for treating diverse genetic changes. The technology can modulate protein activity by targeting phosphorylation sites, providing a reversible alternative to DNA-level modifications.
Researchers discover GUN1 plays a crucial role in regulating chloroplast-to-nucleus communication, enabling plants to respond to stress. This finding may help breed plants that can better withstand environmental stressors and maintain food production.
Researchers are exploring RNA editing as a way to treat diseases without permanent genetic changes. This approach uses an enzyme called ADAR to make precise edits to RNA, which can be reversible and avoid the risks of CRISPR.
Scientists have successfully transferred a key part of the plant's RNA editing mechanism into a bacterium, confirming a long-held theory about its functioning. This breakthrough improves our understanding of this widespread mechanism and opens up new avenues for research.
Researchers found reduced RNA editing in the brain's frontal cortex, temporal cortex and cerebellum of individuals with autism. The study identifies two proteins, FMRP and FXR1P, that regulate abnormal RNA editing in autism spectrum disorder.
A multi-center study discovered how adenosine to inosine (A-to-I) RNA editing contributes to protein diversity in breast cancer, increasing cancer cell proliferation and invasion. The findings suggest that individualizing therapies for each patient is reliant upon a better understanding of the protein genome.
A new study suggests that cephalopods, such as octopus and squid, have evolved prolific RNA editing to enable complex behaviors. This mechanism comes at the cost of reduced genomic DNA evolution, with a trade-off between the two processes observed in these animals.
Researchers found that cephalopods use RNA editing extensively, with over half of their transcribed genes being edited. This process has profoundly constrained the evolution of the cephalopod genome.
Researchers at Osaka University discovered that RNA editing of CAPS1 affects vesicle exocytosis, leading to increased physical activity and lower body weight in mice. This study reveals the importance of RNA editing in regulating physiological processes.
A new study provides insight into the role of RNA editing in cancer, identifying over 2,000 genes with significant changes in RNA editing levels between tumor and normal tissues. Researchers found that these changes may be linked to different clinical outcomes.
Researchers have discovered a new approach to understanding cancer mechanisms, biomarkers, and treatments using RNA editing events. The study, published in Cancer Cell, found that specific RNA editing processes could selectively affect drug sensitivity and may lead to the development of targeted therapies.
The common squid has 60% of its RNA transcripts edited, creating vast protein diversity and potential role in brain physiology
UCLA researchers have created a powerful new method to identify genetic markers for many diseases, including cancer and schizophrenia. The GIREMI method can accurately detect RNA editing sites, genetic mutations, and single nucleotide polymorphisms, enabling diagnosis and risk prediction for various conditions.
A study by Menashe Bar-Eli and colleagues found that a lack of RNA editing contributes to melanoma tumor growth and metastasis by manipulating proteins. The researchers identified a previously unknown target for CREB, a transcription factor involved in melanoma development.
A new study uncovers ADR-1 as a critical regulator of RNA editing, allowing genetic information diversity and affecting numerous human diseases. The protein's binding ability enhances mRNA editing, with decreased expression linked to neurological disorders and cancers.
Researchers at NUS have discovered a biomarker called adenosine deaminase acting on RNA-1 (ADAR1) to diagnose and treat esophageal squamous cell carcinoma (ESCC). ADAR1 over-expression promotes tumor development, with clinical implications for early detection and treatment.
The researchers validated 1,799 sites and predicted an additional 1,782 sites, resulting in a combined list of 3,581 accurate sites. The team gained insights into the model organism's fundamental biology, including patterns of editing and alternative splicing.
Researchers found two new mechanisms governing RNA editing in a key neurodevelopmental gene in living fruit flies. The mechanisms involve newly discovered sequences and structures far away from the editing sites, which can be controlled like a tuning knob to increase or decrease editing.
Brown University researchers found that RNA editing enzyme activity varies with temperature, affecting fly behavior in mating and daily routines. High or low self-editing levels can create different personalities, such as wallflowers or pick-up artists, highlighting the significance of this process in animal behavior.