Articles tagged with Regulatory Genes
A new study from Harvard Medical School identifies p63 as the master regulator of epithelial stem cells, which are essential for tissue regeneration and have implications for cancers such as breast, prostate, and skin. The findings show that p63 imparts 'stemness' to regenerative cells, maintaining a steady pool of these cells.
Researchers used fruit flies to study the genetic basis of species differences, finding that small changes in control regions of genes can result in morphological differences and potentially even the creation of a new species. The study highlights the importance of regulatory sequences in gene evolution.
Researchers at St. Jude Children's Research Hospital have identified the Six3 gene as a critical regulator of lens development in mammalian embryos. The study shows that Six3 activation of the Pax6 gene is essential for the formation of the lens, and its absence leads to lens formation failure.
Researchers found different types of immune response in children with varying levels of infection, including pro-inflammatory and regulatory responses. These findings may help design vaccines to prevent trachoma infection.
Drosha activity plays a fundamental regulatory step in microRNA processing. Blocking this enzyme can suppress miRNA production in cancer cells. This discovery may lead to novel therapeutic strategies for treating cancer by understanding the molecular events of carcinogenesis.
Researchers find that regulatory focus influences consumer responses to brand comparisons. Promotion-focused individuals are more interested in brands advertised with maximal comparisons, while those focused on prevention prefer minimal comparisons. This study challenges the assumption that maximal comparisons are always more persuasiv...
Researchers used Genomatix technology to identify new genes associated with renal disease, using comparative promoter analysis to predict cell junction proteins in the glomerular slit diaphragm. The approach effectively predicted a previously unrecognized molecule, which was experimentally verified.
Researchers have discovered 60 new genes controlled by a specific DNA sequence, known as CArG boxes. These regulatory sequences may hold the key to understanding complex diseases such as heart failure and nerve disorders, which could lead to new treatment options.
Scientists from the Max Planck Institute for Developmental Biology have discovered a feedback mechanism involving hormones and regulatory proteins that controls the number of stem cells in plants. The research sheds light on how plants maintain a balance between growth and cell proliferation, preventing stunted or uncontrolled growth.
Researchers have identified the regulatory element responsible for Van Buchem disease, a hereditary disorder that causes facial distortions, osteosclerosis, and vision and hearing loss. The discovery provides insight into long-range gene regulation and could lead to new treatments for osteoporosis.
Researchers found that gene regulation is bipolar, with a small set of genes relying on the TATA box for proper function, while most genes rely on the TFIID complex. This discovery provides clues about how to understand gene function and regulation in yeast and potentially applicable to human genetics.
A new study reveals that genetic traits within plant species play a crucial role in shaping ecosystem responses to global climate change. The research suggests that these variations should be considered when developing habitat conservation plans.
The GRAM program combines data sets on gene regulatory pathways and messenger RNA levels to determine causal relationships between regulators and genes. By processing these data sets together, researchers can identify regulators that switch genes on or off across the entire genome.
Researchers identified 79 new regulatory sites in yeast genomes, revising the estimated number of genes from 6,331 to 5,773. These sites play a crucial role in regulating gene expression and development, with implications for understanding human diseases such as cancer.
A new computational method, developed by Stanford University and Hebrew University researchers, efficiently identifies regulatory genes in Saccharomyces cerevisiae (baker's yeast). The method reveals previously unknown control genes and predicts their regulatory roles, making the experimental process more efficient.
A new method reveals previously unknown control genes in Saccharomyces cerevisiae, enabling insight into the roles of regulatory genes and their targets. The method predicts functions of regulator genes and their targets, shedding light on gene regulation and its implications for cell function and disease.
The study identifies five insulin-like peptides that regulate mosquito life cycle and disease transmission, providing new targets for genetic interference. The discovery could lead to the development of more effective control methods against malaria.
Scientists have identified several proteins that can block myostatin activity, leading to increased muscle growth in mice. The study suggests that these proteins may be effective muscle-enhancing agents for both human and agricultural applications.
Researchers at Harvard University have created a powerful new tool to combat diabetes, identifying crucial genes responsible for pancreatic development. The discovery sheds light on the role of NGN3 and Pdx-1 in pancreatic development, offering hope for potential therapeutic usage.
Researchers discovered that beneficial bacteria in the gut influence the expression of genes important to intestinal development and function. The study found that these microbes activate genes involved in sugar and fat absorption, cellular barrier integrity, and blood vessel formation.
Yale researchers have identified virtually all of the gene targets for a key protein, known as transcription factors, using new DNA chip technology. The study reveals that these proteins control cell proliferation in yeast and can be used to understand how cells become specialized.
Researchers have identified the three-dimensional atomic structure of a critical gene-regulating molecule, revealing its importance in human diseases such as cancers, autoimmune disorders, and developmental disorders. The discovery could lead to the development of new treatments and therapies for these conditions.
Researchers have pinpointed the first human gene that controls circadian rhythm, a discovery that raises hopes for treating sleep problems in adolescents, the elderly, and shift workers. The study found a mutation in the hPer2 gene, which is responsible for familial advanced sleep-phase syndrome.
Familial Dysautonomia, a devastating disorder, has been linked to mutations in the IKBKAP gene. The gene's disruption leads to poor development and degeneration of sensory and autonomic nervous systems, resulting in symptoms such as abnormal sweating and insensitivity to pain.
Scientists found that switching on the genes for GAP-43 and CAP-23 induces neurons to grow elongated nerve fibers, characteristic of regenerating nerves. This breakthrough suggests genetic therapy or drugs activating just a handful of genes might be enough to induce regeneration in humans with spinal cord injuries.
Researchers used gene array technology to analyze brain gene expression in human alcoholism, identifying extensive reprogramming of the frontal cortex. This study provides insight into the molecular neurocircuitry altered by chronic alcohol abuse, shedding light on tolerance, dependence, and neurotoxicity.
Scientists have found a novel gene, JM2, that causes an inherited form of type 1 diabetes and autoimmunity in boys. The mutations affect the protein's function, leading to hyperactive immune cells that destroy islet cells, resulting in diabetes and allergies.
Researchers have deciphered the gene sequence of Ralstonia metallidurans, a bacterium that thrives in toxic metals, enabling potential bioremediation applications. The draft genome reveals resistance genes to various heavy metals, paving the way for genetic engineering and monitoring tools.
Scientists have discovered that the protein ATR is responsible for activating BRCA1 in response to UV light-induced DNA damage, increasing breast cancer susceptibility. This discovery provides new evidence for ATR as a breast cancer susceptibility gene.
Researchers have identified a potential candidate gene for premature menopause, which may be responsible for up to a quarter of cases in under-25s. The study found that mutations in the inhibin alpha gene were present in three out of 43 women with premature menopause, compared to only one in 150 in an ethnically matched control group.
Researchers identified a novel gene target, SREBP-1c, which controls the expression of lipogenic enzymes. Synthetic compounds binding to LXRa were also discovered, offering potential therapeutic targets for treating disorders like diabetes and cardiovascular disease.
Researchers compare a large imprinted region in the human genome with its counterpart in the mouse genome, identifying crucial genetic elements that control gene activity. The study provides the first global view of an entire imprinted region in any genome, shedding light on mechanisms of genomic imprinting.
Researchers at Johns Hopkins Oncology Center discovered a genetic alteration in tumor samples that predicts patient response to chemotherapy. The methyl-guanine-DNA methyltransferase (MGMT) gene was found to be altered in 19 patients, resulting in better responses to chemotherapy and increased long-term survival.
Scientists have discovered genetic mutations causing hereditary lymphedema-distichiasis, a condition characterized by severe fluid retention and double rows of eyelashes. The FOXC2 gene on chromosome 16 is responsible for the mutations, which can also lead to heart defects, spinal abnormalities, and cleft palate.
Scientists at Baylor College of Medicine identified new genes involved in RNA processing, transcriptional regulation, and detoxification that contribute to neurodegenerative diseases. The discovery provides new insight into the disease process and may lead to the development of drugs to slow or halt degeneration.
Jefferson scientists discover that blocking a protein affects collagen gene expression in both normal and scleroderma cells, offering new hope for treating the disease. The findings suggest that therapeutic compounds may be developed to inhibit this pathway and reduce collagen production.
The Ras oncogene's suppression of p53 could explain why some cancers are resistant to radiation therapy. The finding suggests that Ras may play an indirect role in many more cancers by regulating the tumor-suppressor gene, contributing to cancer development.
A recent NIH study discovered that gene alterations associated with cystic fibrosis may also contribute to chronic sinus problems in some individuals. The study found that nearly five times more patients with sinusitis carried CFTR alterations than those without the condition.
Researchers show that the transcription factor E2F-1 activates both p53 and p73, playing a crucial role in cell death. This finding raises the possibility of using activators of E2F-1 to tip the balance towards apoptosis, potentially leading to new cancer therapies.
The US cancer community must adopt a new paradigm to develop and test cancer treatments, says Dr Edison Liu. The shift in emphasis is needed due to rapid advancements in biological technology, which could lead to significant improvements in prevention, diagnosis, and treatment.
Researchers at Johns Hopkins have identified a previously unknown system that helps control the protein product made by the cystic fibrosis gene, called CFTR. The discovery could lead to improved drug testing and screening for cystic fibrosis therapies.
Researchers discovered a novel survival mechanism in Salmonella bacteria that detects and protects them from high levels of iron. The PmrA/PmrB system allows Salmonella to fend off the antibiotic polymyxin and thrive in hostile environments.
A new genetic variation in the calpain-10 gene has been identified as a significant contributor to type 2 diabetes. This discovery provides new insight into the origins of the disease and its impact on patients' lives, offering potential therapeutic approaches for treatment.
Scientists have identified a major susceptibility gene for type 2 diabetes in Mexican Americans, also affecting two European populations. The discovery provides new approaches to prevention, diagnosis and treatment of the disease.
Research findings suggest that depression in children is linked to increased serotonin transporter availability, while dopamine levels are less significant. A family-based study also identifies a potential link between the DRD4 gene and ADHD, highlighting progress in understanding molecular basis of childhood mental illness.
Researchers at TSRI have cloned the TOC1 gene, which regulates circadian rhythms in plants, providing insight into how plants adapt to daily environmental changes. The study's findings suggest that understanding plant internal clocks may also elucidate clock mechanisms in other species, including humans.
A team of researchers has discovered a novel molecular structure that determines male or female physical characteristics in fruit flies. The findings have implications for humans as similar genes have been found in the human genome.
Two separate groups of scientists identified a genetic mutation associated with primary pulmonary hypertension (PPH), a rare but devastating lung disease. Defects in the BMPR2 gene lead to abnormal proliferation of cells in the lungs characteristic of PPH.
Researchers at Vanderbilt University Medical Center have identified Bone Morphogenic Protein Receptor Two (BMPR2) as the gene responsible for causing PPH, a fatal lung disease. The mutation of this gene causes cells to grow and clog blood vessels in the lungs, leading to high blood pressure.
A French study on circadian clocks found that female zebrafish 'set' the clocks of their young before birth, influencing how easily the body adjusts to day/night cycles. Variations in maternal genes may also affect this process.
Researchers at Adelaide University are working to improve cotton fibre quality through genetic engineering, aiming to increase yield and reduce pesticide use. They are studying the genetic control of fibre development using Arabidopsis thaliana as a model organism.
Researchers at Rosetta Inpharmatics used high-quality gene expression data and computational methods to identify novel gene functions. The company's approach enables the deciphering of previously uncharacterized genes, with applications in new drug discovery and development.
Researchers discovered that three fruit fly genes Scribble, Lethal giant larvae, and Discs-large are crucial for orderly epithelial cell growth. Mutations in these genes cause cells to become overgrown and form solid, tumor-like masses, similar to human malignant tumors.
Researchers at Dartmouth Medical School have clarified the molecular gears that drive biological clocks, revealing a simple model with striking parallels. The study found that light and dark cycles reset the clocks, but are not required to run them, and identified fundamental properties shared among all living clocks.
Researchers found that trans-Resveratrol modulates NF-kappa B activity, turning off a natural protective mechanism that prevents cancer cells from being killed. The study suggests that consuming more grapes and grape products may help prevent or treat certain cancers.
A recent study found three genes that may play a role in protecting the kidneys from diabetic damage. The genes were identified by examining the genetic structure of healthy and sick mice, and their discovery could lead to new therapeutic strategies for kidney disease. By understanding how these genes work, scientists hope to develop d...
A study found that people with a particular variation in the serotonin transporter gene (5-HTT) showed a greater fear response during a laboratory experiment. This variation is linked to increasing regulation of serotonin levels in the brain, which may play a role in anxiety disorders.
A team of biologists at UCSD identified three genes that produce the 'double flower' abnormality, which is prized for its attractiveness. Normal flowers consist of four rings or whorls; when these genes are mutated, petals, stamens and carpels are converted into sepals, resulting in a double-flower character.
Researchers found associations between certain personality traits and a polymorphic region in the human AP-2beta gene. These traits include muscular tension, guilt, somatic anxiety, psychasthenia, and indirect aggression. The study suggests a novel approach to understanding the genetic basis of psychiatric disorders and personality.
Scientists have pinpointed the first gene in fruit fly Drosophila that is a target of an alternate control molecule, TRF1. This discovery opens up new avenues for understanding how gene expression is regulated, with potential implications for complex organisms like humans.