Articles tagged with Protein Expression
A study published in JCI Journal reveals that alpha-basic-crystallin is overexpressed in breast cancer tumors and triggers tumor development. The protein causes dysregulated growth, changes in cell structure, and diminished programmed cell death, ultimately leading to poor clinical outcomes.
A study by David L. Rimm and colleagues found that high biomarker antibody concentrations were associated with low patient survival in breast cancer patients, while low concentrations were linked to good outcomes. Another study examined the impact of long-term storage on circulating DNA levels in lung cancer patients.
Researchers at St. Jude Children's Research Hospital discovered that histone deacetylase enzymes cooperate with CBP/p300 histone acetylases to trigger expression of genes responding to hypoxia. The study suggests that developing new therapies targeting both mechanisms may enhance treatment efficacy for solid tumors.
Researchers discovered that disrupting p53 activity in neurons extends lifespan and increases stress resistance in adult fruit flies. The study suggests that targeting p53 activity in different cell types may offer a way to prevent tumors while preserving healthy aging.
Researchers at Temple University School of Medicine have discovered a novel protein, p27SJ, extracted from St. John's Wort that suppresses HIV-1 gene expression and inhibits its replication. The study reveals that the protein interacts with both cellular proteins and viral proteins to block viral replication.
A recent study contradicts earlier research suggesting that the neural development protein Oct-6 could be a marker for schizophrenia and bipolar disorder. Contrary to previous results, researchers found no difference in Oct-6 protein or mRNA expression between patients with these disorders and healthy individuals.
eEF1A2 protein is moderately to highly expressed in two-thirds of breast tumor cells, with significant over-expression in estrogen receptor-positive tumors. The protein's role in breast tumour development remains unclear, but may be related to its function in protein synthesis or cytoskeletal remodelling.
Research at Cold Spring Harbor Laboratory explores novel approaches to preventing muscle atrophy by optimizing exercise and nutritional interventions. The study highlights the importance of combining resistance training with specific nutrient profiles to maintain muscle mass and function.
Researchers at UGA have conducted the first global survey of protein expression in Trypanosoma cruzi, a parasite that causes Chagas disease. The study identified patterns of protein expression across the parasite's four lifecycle stages, providing new criteria for selecting vaccine targets and potential drug candidates.
Scientists developed a new bioinformatics technique to analyze key DNA regions controlling gene activity. The approach uses machine learning to predict binding site combinations and regulate genes, achieving success rates comparable to existing methods.
Researchers identify TIR1 as the protein that works with auxin to influence plant cell growth and division. This discovery sheds light on the long-standing mystery of auxin's role in plant development, with potential implications for understanding human biology.
A new study has identified three nuclear proteins that are unique to the bladders of animals with interstitial cystitis (IC), a chronic pelvic pain disorder. The proteins, transgelin (SM-22), ras suppressor protein (RSU-1) and GAPDH, were found to be down-regulated in IC-model bladders after instillation with hydrochloric acid.
Weakened T-cell receptor signals shift T-cell lineage towards the gamma-delta pathway, enabling immune surveillance against external disease-causing agents. Gamma-delta T cells appear particularly adept at combating skin cancers and may play a role in detecting potential cancers.
Researchers used a novel transgenic strategy to create ProC mice with low protein C levels, which spontaneously developed thrombosis and inflammation. The study found that maternal ProC is required for sustaining pregnancy, highlighting the role of protein C in development and disease.
Researchers used RNA interference to silence mutated SOD1 genes in ALS mice, reducing disease progression and improving neuromuscular function. This breakthrough suggests gene silencing as a potential therapy for incurable progressive neurological diseases like ALS and Parkinson's.
Scientists have discovered that microRNA works in conjunction with multiple proteins to target messenger RNA, regulating genetic expression. This discovery sheds light on the stability and degradation of mRNA, a crucial process in controlling gene expression and preventing diseases like cancer and septic shock.
Researchers found that 21 snake venom toxins originated from proteins in various body tissues, including brain, eye, and liver. This discovery sheds light on the evolution of these potent toxins and their potential use in medical research.
Charles Yanofsky, a renowned molecular biologist at Stanford University, has been awarded the National Medal of Science for his groundbreaking work on gene expression and protein production. His research has significantly advanced our understanding of how genes are regulated to produce specific proteins.
A new method assigns biological functions to unknown genes, enabling genome comparison, by integrating experimental and computational analyses. This approach identifies functional proteins in 97% of hypothetical genes and provides a framework for ranking their precision and confidence.
The study aims to identify genetic markers that can predict the onset of type 1 diabetes. The researchers plan to analyze the human genome, messenger RNA, and proteins to find reliable predictors of the disease, which may lead to new treatments and a potential cure.
Fragile X Syndrome may be caused by altered nerve cell growth and connectivity. Neurons lacking the protein exhibit increased complexity, while those overexpressing it are simplified.
Researchers found a genetic connection between preeclampsia and the interaction between trophoblast cells and natural killer cells. The study suggests that a specific protein combination may be responsible for suppressing the NK cells' ability to stimulate vessel remodeling, leading to decreased blood flow to the fetus.
Diabetics are susceptible to prolonged inflammation due to infection, leading to cardiovascular disease and poor wound healing. Inhibiting excess TNF may reduce the tendency for prolonged inflammation.
F. William Studier develops a new method that simplifies the production of proteins in parallel, allowing for efficient biomedical research and industrial production of proteins for various applications. The new autoinduction system enables automatic protein production without human intervention, leading to increased protein yields.
Scientists identify LARGE protein as a key player in restoring alpha-dystroglycan function, which is critical for normal muscle function. The discovery may lead to new treatments for muscular dystrophies and other muscle diseases.
A study using mouse models of Alzheimer's disease found that blocking the Fyn enzyme reduces amyloid protein damage to synapses and improves longevity. However, increasing Fyn levels worsens synaptic damage and shortens lifespan. The findings suggest that pharmacological modulation of Fyn may be beneficial in treating Alzheimer's.
A new study investigates curcumin's ability to induce heme oxygenase-1 (HO-1) in rat astrocytes and neurons, suggesting a potential neuroprotective effect. The research found increased expression of HO-1 protein and detoxification enzymes in response to curcumin treatment.
Researchers at Scripps Research Institute solved the structure of a regulatory protein that controls gene expression by recognizing specific RNA sequences. The discovery provides valuable insights into post-transcriptional gene regulation and its potential to target diseases such as inflammation.
Researchers have developed a new method called CLIP to catalog RNA targets regulated by RNA binding proteins in rare brain diseases. The study identifies an astonishing set of 340 Nova RNA tags, shedding light on the role of RNA splicing in POMA and other disorders.
Researchers identified TL1A, a cytokine that regulates immune response, as a potential target for treating IBD. The protein's expression correlated with inflammation severity in Crohn's disease, but not ulcerative colitis.
A comprehensive study on anthrax lethal toxin reveals that human infection is not caused by septic shock but rather hypoxia-induced liver failure. The findings suggest that existing therapies for cytokine-mediated sepsis will not be effective in treating anthrax, highlighting the need for new approaches to treatment.
Researchers at Vanderbilt University have identified a distinct pattern of protein expression that can predict poor or good lung cancer prognosis. The protein profile was used to analyze tiny amounts of tumor tissue and accurately distinguish between different types of lung cancer.
Researchers found that increasing RKIP expression in metastatic prostate cancer cells decreased their invasiveness and reduced lung metastases in mice. The study suggests that RKIP may be a suppressor of prostate cancer metastasis, offering new targets for cancer control.
A team of scientists discovered that small heat-shock proteins play a key role in delaying both aging and age-related diseases such as Alzheimer's, Huntington's, and Parkinson's. The proteins inhibit protein aggregation, suggesting a molecular link between the two conditions.
Researchers identified a strong association between EZH2 and ECAD biomarkers and prostate cancer recurrence. Moderate or strong expression of EZH2 coupled with at most moderate expression of ECAD is most strongly associated with biochemical recurrence.
Researchers at Dartmouth College have made a breakthrough in producing human therapeutics using a yeast-based protein expression system. By genetically engineering the yeast P. pastoris, they can now produce fully-humanized proteins with complex glycosylation structures.
The study reveals that the SIX3 protein secures anterior neural cells by blocking out a posteriorizing signal, crucial for forebrain formation. In mouse models and zebrafish, forced expression of Six3 rescues forebrain development, demonstrating its critical role in vertebrate head development.
Researchers create a new, cost-effective way to produce human therapeutic proteins using algae. They can now make large quantities of antibodies and other proteins much cheaper than traditional methods.
Researchers have found that thymic cells express hundreds of genes associated with distant organs, foreshadowing self-antigens for T cells. This discovery may lead to a new understanding of immune system mechanisms and the development of autoimmune diseases.
Researchers at TSRI identified over 2,400 proteins in Plasmodium falciparum, the most deadly malaria parasite, which may lead to new vaccine targets. The study sheds light on how the pathogen causes malaria and could help scientists understand its lifecycle.
Researchers found that FMRP associates with RNAi-related cellular machinery, suggesting a possible role for RNAi in regulating gene expression. This discovery may lead to an entirely new field of molecular human genetics, shedding light on the genetic causes of fragile X syndrome.
A team of scientists has discovered a mechanism for neuron-specific expression of Pcdh proteins, allowing individual neurons to generate distinct combinations of genes and proteins. This discovery may underlie the specificity of neural connectivity.
Researchers at Dartmouth have discovered a novel photoreceptor protein that absorbs light and regulates the circadian rhythm. The protein, White Collar-1, is part of a genetic system that can be exploited to develop new drug delivery systems for treating fungal diseases.
Researchers found over 200 groups of adjacent and similarly expressed genes in Drosophila melanogaster, accounting for approximately 20% of the genome. The 'sloppy' regulation may reflect chromatin's packaging and influence gene expression more by accident than design.
Researchers analyzed muscle biopsies from patients with polymyositis and sarcoid myopathy to identify key cell surface receptors involved in T-cell adhesion and migration. The study used MelTec's MELK technology to map protein networks in whole, intact cells, providing new insights into disease mechanisms.
The study found that lower levels of cigarette smoke exposure decrease NaPi-IIb cotransporter gene and protein expression, while higher smoke exposure increases its expression. This suggests a compensatory mechanism for surfactant production in smokers.
Researchers have discovered that a single genetic mutation can disrupt at least two other genes, leading to hypertrophic cardiomyopathy. The study found that the mutated gene affects the expression of two contractile proteins necessary for heart contraction. This new understanding may lead to future gene therapy strategies.
A recent study published in Science reveals that chimpanzees and humans have strikingly different patterns of gene expression in the brain, with humans exhibiting accelerated evolutionary change. This difference may hold clues to understanding medical traits such as AIDS, malaria, and Alzheimer's disease.
The study reveals significant differences in human and chimpanzee brain gene and protein expression, with humans accumulating expression differences at least five times faster than chimpanzees. This discovery may provide insights into the genetics underlying diseases that affect humans but not chimps.
Researchers found that a calcium-signaling protein transforms sedentary, easily fatigued muscle fibers into energy-producing, fatigue-resistant type I muscle fibers. This discovery could lead to novel measures to stimulate muscles in patients with chronic diseases or individuals confined to bed rest.
Researchers develop a microsurgical technique to manipulate signaling proteins in developing mouse brains, revealing a previously unknown molecular mechanism involved in forming the cerebral cortex. The study shows that this protein directs the development of cortical areas, including vision, touch, and memory.
Researchers found that the central clock is insensitive to food stimuli and can be overridden by peripheral clocks. This discovery provides insight into the complex circuits connecting brain and body during feeding patterns.
Researchers discover that mechanical deformation, such as stretching, can induce the expression of smooth muscle cell proteins and is crucial for normal lung development. This pathway may be disrupted in fetuses with oligohydramnion, leading to hypoplastic lungs.
A study using robotic microarray technology has identified 55 genes involved in cardiac hypertrophy, including 30 previously unassociated genes. The research also discovered eight genes associated only with recovery from hypertrophy, providing new insights into the complex relationship between heart stress and gene expression.
Researchers have developed a new technique to identify elusive human genes expressed at low levels, which could play crucial roles in normal processes or disease prevention. The approach reduces the 'tail' of genetic material, retaining more copies of these genes and increasing their discovery rate.
Researchers discovered a new molecular marker, p27(Kip1), that can predict prostate cancer tumor progression and guide treatment decisions. Low levels of the protein are associated with increased disease recurrence and mortality.