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 at the University of Iowa have identified a new mode of action for tamoxifen, an anti-estrogen medication used to treat breast cancer. Tamoxifen turns on the tumor suppressor gene maspin, which inhibits tumor invasion and metastasis in normal breast cells.
Researchers discovered that stress can alter gene expression, leading to enhanced fear memory and long-term potentiation. By using a new gene-based 'antisense' drug, they successfully prevented these changes, attenuating the elevated freezing response and paving the way for novel treatments.
A new study by researchers at The Wistar Institute shows that gene activation is a highly dynamic process requiring specific molecular modifications, including the addition and removal of ubiquitin. This process involves a sequence of events and not just the accumulation of molecular groups.
Researchers have found significant decreases in growth hormone and prolactin gene expression in the cerebellum of aged mice, suggesting a possible link between these hormones and age-related declines in motor control and balance. Further study is needed to understand the role of genetic pathways in aging.
Researchers at The Wistar Institute report new insights into the role of sirtuins in gene expression, revealing a mechanism likely to be general for the entire sirtuin enzyme family. This discovery may offer an explanation for the connection between metabolism and aging.
The Gene Expression Nervous System Atlas (GENSAT) provides a comprehensive map of gene expression in the central nervous system. Researchers can use this tool to explore molecular machinery and chart functional circuitry of the brain and spinal cord, leading to better understanding of neurological disorders.
The GenSAT project offers a fully public, searchable database of gene expression in central nervous system cell types for individual genes. Researchers can analyze up to five genes per week using the Gensat platform.
The Gene Expression Nervous System Atlas (GENSAT) project has mapped gene activity in the mouse nervous system, providing insights into brain development and function. The data will facilitate investigations into neurological and psychiatric drugs, as well as advance our understanding of human development and disease.
Researchers found that blocking laminin-8 gene expression significantly reduced glioma cells' ability to invade neighboring tissue. The study supports the hypothesis that laminin-8 is involved in tumor spread and suggests a potential target for intervention strategies.
Researchers uncover two neighboring genes, Rsl1 and Rsl2, that repress male-specific liver gene expression in female mice. This discovery sheds light on the genetic basis for gender differences in liver function, revealing a complex interplay between multiple genes.
The study found 83 genes with higher levels of activity in humans, linked to increased brain activity, while human brains showed increased expression of genes protecting against damage. This discovery may explain why humans have a long lifespan but are vulnerable to neurodegenerative diseases.
A new study found that gene expression is robustly associated with behavior in adult honey bee brains, revealing a dynamic genome involved in modulating behavior.
Researchers at UCSD identified a novel gene called Nxf1 that restores function to mutated genes by increasing normal product production, alleviating abnormalities in mouse mutations. This discovery offers hope for controlling human disorders caused by retrovirus insertion mutations.
Researchers found that resistance exercise can alter the expression of clock genes in human skeletal muscle, causing a phase shift similar to winding on (resetting) the muscle clock. This suggests that peripheral clocks can regulate themselves independently of the central clock.
Research suggests that schizophrenia and bipolar disorder share similar genetic causes, with key oligodendrocyte-related and myelin-related genes showing reduced expression in patients. This finding has implications for understanding the underlying mechanisms of these complex mental health conditions.
Researchers at UNC have identified a protein that directly regulates lysine methylation on core histone protein H3, leading to gene repression. This discovery sheds light on the mechanisms of epigenetic signals and their role in regulating gene expression.
Researchers at The Wistar Institute have provided new insights into the emerging theory of gene regulation, showing how two enzymes work together to activate specific genes by loosening chromatin. This study supports the 'histone code' theory, suggesting complex modifications to histones control gene activity.
A study by NIH/NIEHS has identified a mouse gene linked to hydrocephalus, a common birth defect. The research team cloned the defective gene, which affects cerebrospinal fluid drainage, and found it causes classic symptoms of hydrocephalus in mice.
A recent study reveals that an unusually high percentage of genes are expressed during the critical stage of the malaria parasite's life cycle, when it invades red blood cells. The analysis shows a unique pattern of gene expression, with most genes expressed only once in a specific order, suggesting a molecular 'just in time' factory.
Scientists discovered a single gene, PHAN, that regulates leaf shape in plants. The study found similar patterns of PHAN gene expression and leaf shape in over 500 plant species, suggesting a limited number of ways to change leaf shape.
Researchers found that MYC binds to the WRN gene promoter, activating WRN expression and promoting cellular senescence in tumor cells. This discovery suggests a potential therapeutic target for cancer treatment by inhibiting WRN in MYC-induced tumor cells.
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.
Scientists have successfully silenced mutant genes without affecting normal gene copies using RNA interference, a promising approach for treating diseases like Machado-Joseph disease, Huntington's, and Alzheimer's. This breakthrough technique has the potential to selectively turn off disease-causing genes, preserving essential normal g...
Researchers at Purdue University have identified a gene that controls the production of plants' outermost protective coating. By manipulating this gene, they may be able to create crops with increased drought resistance. The study found that altering the gene's expression can result in thicker or more rigid cuticles, reducing water los...
Researchers developed new methods for diagnosing breast cancer based on gene expression signatures, correlating with traditional pathological classifications. The study found that early-stage lesions contain molecular signatures reflecting tumor aggressiveness, potentially changing the course of cancer progression.
The BP1 gene is found to be active in 57% of Caucasian women and 89% of African American women with breast cancer. Gene therapy targeting BP1 may help treat non-hereditary breast cancer, which accounts for 95% of cases.
A Rutgers researcher has discovered a gene that causes melanoma by expressing differently in skin cells compared to brain cells. The finding provides new insights into the disease's development and could lead to more targeted treatments.
Researchers have identified unique gene expression patterns in human cells after exposure to 8 different biothreat agents, enabling rapid detection of potentially exposed individuals. The study's findings offer possibilities for utilizing host gene expression responses for early illness prediction.
A new method, KL clustering, has been identified as more effective than hierarchical clustering in separating gene expression data into dense clusters. The approach uses a novel measure of similarity to create well-separated clusters, offering insights into gene-gene interactions and biological processes.
High levels of AIB1 expression in breast cancer tumors are associated with poorer tamoxifen treatment outcomes. Patients with both high AIB1 and HER-2 expression have significantly worse disease-free survival compared to other patient groups.
Researchers have discovered a genetic signature, known as the IFN expression signature, associated with severe lupus symptoms. This signature is linked to interferon activity and has implications for developing new therapies to block IFN pathways in patients with severe lupus.
Researchers have identified a new gene, endothelial lipase (LIPG), that regulates HDL cholesterol levels and impacts the risk of developing heart disease. By altering LIPG expression in genetic models, scientists found an inverse relationship between HDL cholesterol and EL expression.
A new study found that men with moderate anger expression had nearly half the risk of nonfatal heart attacks and a significant reduction in stroke risk compared to those with low anger expression. Moderate anger may be protective against cardiovascular disease over a limited period, according to researchers.
Scientists have achieved germline transmission of 'gene knockdown' in mice by using genetic engineering to create mouse embryonic stem cells targeted with RNAi. This enables the manipulation of gene activity in specific tissues and allows for switching on and off at any time during development or adulthood.
Researchers at Vanderbilt University Medical Center have developed a novel gene therapy approach that repairs messenger RNA, which could lead to effective treatments for inherited diseases. The method uses ribozymes to correct defective genes and has shown promising results in animal models.
Researchers have identified a gene called takeout that plays a key role in controlling the sex drive of male fruit flies. Takeout is regulated by sex-specific forms of the master gene regulators DSX and FRU, and its expression in the head is required for normal courtship behavior.
A study found that an uncommon variation of the Nogo gene increases schizophrenia risk, particularly when inherited from both parents. One in five people with schizophrenia has this risk gene, and researchers hope to discover new related genes to aid diagnosis and treatment.
Researchers have developed a gene therapy technique that integrates DNA without using viral vectors, inserting the DNA at known locations. The technique successfully integrated a gene coding for Factor IX into mouse DNA, making 12 times more protein than control mice.
The study reveals how SATB1 regulates gene transcription by remodeling chromatin and positioning nucleosomes. In thymocytes, SATB1 brings specific enzymes to the IL-2Ra gene site, regulating its activation and repression.
Researchers have found that deacetylase inhibitors enhance muscle gene expression and formation in human and mouse myoblasts. This discovery may lead to methods to induce muscle growth, regeneration, and repair in adults with muscular dystrophy.
A study by Dr. G. Paolo Dotto and colleagues found that decreased Notch1 expression enables the increased expression of HPV viral proteins E6 and E7, promoting malignant cell transformation.
A study found that hereditary BRCA1 and BRCA2 ovarian cancers have similar gene expression profiles to sporadic ovarian cancers. The research suggests shared molecular mechanisms between hereditary and sporadic ovarian carcinogenesis exist.
Researchers at Penn State College of Medicine have discovered that a protein previously thought to be in the nucleus resides in the cytoplasm, correcting a scientific theory since 1992. This finding offers new parameters for understanding gene switches and their role in human diseases.
Researchers analyzed gene expression profiles from thousands of lymphoma biopsy samples to identify predictive genes that can predict patient response to treatment and survival rates. The study found that a formula created from 17 key genes could accurately classify patients into four groups with varying five-year survival rates.
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 at Temple University discovered that the Rb2 gene's lack of expression could be an early indicator of prostate cancer. A study found lower expression levels of Rb2 in prostate tissue as it progresses from normal to cancerous, suggesting its potential use as a diagnostic marker.
Researchers aim to find new targets in the brain to prevent and treat Alzheimer's and Parkinson's diseases using Serial Analysis of Gene Expression (SAGE) technology. The $2.75 million funding will support Columbia University's technology transfer and commercialization efforts.
Researchers analyzed cloned mouse embryos for Oct4 gene expression to evaluate genetic reprogramming. Most cumulus-cloned embryos failed to properly reprogram their Oct4 gene pattern, resulting in low developmental potential and viability.
GenMAPP organizes gene expression results by biological process, allowing researchers to see coordinated changes in gene expression. The program uses graphical representations of biological pathways to analyze gene expression data, providing a systems approach to interpreting biological data.
Researchers have identified a human gene that appears to be the counterpart to the mouse Mater gene, essential for fertilized egg development. The discovery may lead to new approaches in studying and treating female infertility, as well as understanding the role of the immune system in premature ovarian failure.
Hopkins researchers identified a nine-fold increase in expression of the AMACR gene in prostate cancers, making it a promising early marker and potential drug target. Overexpression patterns were also found in precancerous lesions, highlighting the gene's potential for non-invasive detection and prevention.
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 have identified new markers for prostate and colon cancers, as well as a potential tumor suppressor gene. TIG1 was found to be expressed in normal prostate tissue but not malignant tumors, suggesting it may play a role in cancer progression.
Researchers at Genetica and Cold Spring Harbor Laboratory have developed a cost-effective method for determining the role of specific genes using RNAi. This approach enables stable silencing of gene expression in mammalian cells, allowing for rapid assessment of gene function, previously limited to plants and certain model organisms.
Researchers used Sangamo's ZFP technology to repress a specific gene variant, preventing fat cells from developing. This breakthrough demonstrates the precision of ZFPs in regulating gene expression and may lead to new treatments for diseases related to fat cell development.
A new gene therapy method has successfully corrected sickle cell disease in mice by transferring an anti-sickling gene to bone marrow, preventing the formation of deformed red blood cells. The therapy, developed using a viral delivery system, resulted in up to 99% expression of the new gene in circulating red blood cells.
Scientists discover that the Math1 gene triggers the differentiation of three types of intestinal cells from stem cells, including goblet, enteroendocrine, and Paneth cells. This finding provides significant insights into the regulatory control of intestinal stem cells and their role in disease treatment.
The UNC-Chapel Hill Gene Therapy Center will use the funds to translate basic research knowledge into safe human clinical trials, with a focus on cystic fibrosis and hemophilia. The center aims to provide new treatments for diseases caused by single-gene defects.
Researchers genetically engineered mice to overexpress the HIF-1α gene in skin cells, resulting in a 70% increase in capillaries and normal-like blood vessels. The study suggests that HIF-1α harnesses VEGF expression in a way that could be beneficial therapeutically for conditions like ischemic tissue and recalcitrant wounds.