Articles tagged with Cellular Regulation
Researchers at Max Planck Institute for Biological Intelligence have discovered a brain circuit that inhibits food intake during nausea. The circuit involves special nerve cells in the amygdala, which send appetite-suppressing signals to distant brain regions, resulting in a loss of appetite.
Researchers at U of T have mapped the movement of proteins encoded by the yeast genome throughout its cell cycle, identifying patterns of emergence and disappearance or movement to specific areas. The study provides a unique dataset that offers a genome-scale view of molecular changes during cell division.
New research found that cells form liquid droplets to sequester excess cAMP and PKA, tamping down non-specific signaling. This helps maintain cellular biochemical activities according to spatiotemporal regulation. The study aims to investigate the molecular mechanisms behind this process and design a therapeutic for rare liver cancer.
Thorsten Hoppe and Jens Brüning received 2.5 million euros in funding from the European Research Council to investigate protein degradation and neural circuits of metabolic control, respectively. Their projects focus on preventing neurodegeneration and developing new drugs for obesity treatment.
Researchers highlight the role of post-transcriptional RNA modifications in AML pathogenesis, identifying m6A and m7G regulators as potential therapeutic targets. Targeted therapies, including selective inhibitors and Traditional Chinese Medicine compounds, show promise in promoting cell differentiation and reversing AML phenotypes.
Researchers have developed a statistical method called SCENT to establish links between regulatory elements and genes, pinpointing probable causal gene loci for common and rare diseases. The study applied SCENT to multimodal single-cell datasets from various human tissues, discovering insights into DNA regulation in specific cell types.
Researchers identified a gene mutation associated with impaired natural killer cell function, leading to increased susceptibility to viral infections in people with a rare genetic condition. Oleic acid supplementation shows promise as a potential therapy for these patients.
Researchers used single-molecule microscopy and X-ray crystallography to discover that pathogenic JAK2 mutations utilize pseudokinase domain-mediated dimerization as a mechanism for activation. The study provides new insights into the molecular basis of JAK2 activation and its role in blood cancers.
This study explores the role of Zinnia elegans carotenoid cleavage dioxygenases (ZeCCDs) in regulating carotenoid metabolism and petal coloration. The results show that ZeCCD4-2 plays a crucial role in carotenoid cleavage and accumulation, highlighting its importance in understanding the molecular mechanism of petal coloration.
Researchers at UVA Health discovered a potential explanation for long COVID symptoms by identifying 'abzymes' that act like enzymes regulating important bodily functions. This discovery could lead to new treatments targeting these rogue antibodies to alleviate acute effects of COVID-19 and its complications.
Scientists discovered the molecular code for brain neural circuits and identified characteristics of excitatory synapses that contribute to memory of new object locations. Fine-tuning of specific excitatory synapse traits may be used in developing treatments for related brain developmental disorders.
A new study has identified a crucial role for plant MLKL proteins in regulating cytoplasmic calcium ion concentration, which is responsible for innate immune responses. The research found that activated plant MLKLs maintain higher calcium levels, activating downstream immune machinery and conferring disease resistance.
Researchers have discovered that PR55α, a regulatory subunit of PP2A phosphatase, inhibits p16 expression and blocks cellular senescence induction by γ-irradiation. This finding provides a new insight into the regulation of the p16/RB pathway in response to stressors.
Researchers at St. Jude Children's Research Hospital have discovered that myeloid cell leukemia-1 (MCL-1) plays a critical role in regulating long-chain fatty acid oxidation in mitochondria, revealing new insights into its anti-apoptotic functions and potential therapeutic applications.
Researchers developed an improved method for G4 landscape determination, revealing that sequence property-specific constraints in the nuclear environment mitigate G4 formation. The technique, AbC G4-ChIP, captures G4s efficiently without bias, showing that depletion of a repeat-binding protein enhances net G4 capture at specific sites.
A Kyoto University research group developed RENGE, a computational model to estimate gene regulatory networks in multicellular organisms. The method measures time-series gene expression and uses the proprietary model to infer regulatory dynamics.
Researchers investigated the molecular mechanism of serum iron overload-induced BMP/SMAD pathway and hepcidin expression. SMURF1, a master regulatory function, mediates Holo-Tf-induced SMAD1/5 activation and hepcidin expression. The inhibition of SMURF1 may represent a therapeutic strategy for iron overload-related diseases.
Scientists discovered a shift in gene regulation by enhancers during embryonic development, showing both 'instructive' and 'permissive' modes of regulation. The study found that developmental stage determines which mode is dominant, allowing for rapid gene expression changes and tissue-specific control systems.
Researchers identified genes controlling sorghum flowering and found that overexpressing one gene can delay flowering, increasing plant growth and biomass. The study provides new insights into optimizing sorghum for bioenergy goals.
Researchers define a 'core senescent profile' in human colon fibroblasts, revealing potential driver proteins involved in CRC. The study's findings provide insights into therapies for improving overall health and preventing CRC.
Researchers at Aarhus University discovered that RNA modification N4-acetylcytidine (ac4C) plays a key role in stress granule formation and function. Acetylated transcripts are localized to stress granules, regulating their assembly and dispersal.
A new study reveals distinct transcriptional programs and molecular features in right-sided colon stem cells, which may help explain the differences in colon cancer development. The research also highlights the importance of CDX2 in regulating stem cell differentiation and tumor initiation.
Researchers found that obesity increases allosteric regulation during feeding and decreases it when fasting in mice livers. This disruption may lead to metabolic disorders like nonalcoholic fatty liver disease and Type 2 diabetes.
Astrocytes in the habenula region of the brain play a crucial role in regulating anxiety. The study found that artificial alkalization of these cells reduces theta band neuronal activity, while optogenetic alkalization increases it. This suggests that astrocytes tune into the 'marble blues' to control anxiety responses.
A study published in Nature Cardiovascular Research reveals that a dynamic synergy between cell types facilitates cardiac renewal, challenging existing paradigms. Targeting the microenvironment rather than specific cell types is key to healing injured hearts.
Researchers found elevated PROX1 levels in advanced colon adenocarcinoma, correlating with poor prognosis. PROX1 modulates CRC cell behavior, influencing invasiveness and survival outcomes. The combined PROX1/α-SMA gene set emerges as a potential CRC prognostic marker.
Researchers from Tokyo University of Science identify Cpeb4 protein's crucial role in mRNA splicing and osteoclast differentiation, shedding light on bone disease mechanisms. The study's findings may lead to new diagnostic techniques and treatments for conditions like osteoporosis.
Researchers discovered that microRNA-29 can restore normal skin structure rather than producing a scar, promoting faster and more efficient wound healing. The release of microRNA-29 targets, particularly LAMC2, is crucial in this process, suggesting a potential new approach for treating large-area or deep wounds.
A study published in PNAS reveals that light controls the post-transcriptional splicing of genes regulating photosynthesis in mesophyll cells. This process is co-regulated by AtPRMT5 and COP1, allowing plants to adapt to changing light conditions.
Scientists found that short-chain fatty acids produced by gut bacteria suppress allergic reactions by modulating mast cell activation and epigenetic modifications. This study provides new insights into the relationship between diet and immune system regulation, with potential applications in allergy treatment.
A team of neuroscientists has discovered that oligodendrocytes, myelin-forming cells, accelerate glucose consumption to deliver energy-rich molecules to rapidly firing axons. This communication is mediated by potassium signals and maintains axonal health.
Researchers decoded the complex gene regulatory network governing secondary cell wall formation, highlighting its role in diverse structures. The study reveals a multilayered network with dynamic control, shedding light on environmental fluctuations and post-transcriptional modifications.
A recent study by Tokyo University of Science researchers has uncovered the mechanisms by which plants regulate the production of reactive oxygen species (ROS). The findings, published in Physiologia Plantarum, reveal that ROS-generating enzymes are activated through two conserved mechanisms involving calcium ions and phosphorylation, ...
Researchers found that high levels of FSP1 are associated with relapse after cisplatin treatment in head and neck squamous cell carcinoma. Targeting FSP1 can attenuate tumor stemness and downregulate invasion and metastatic rates, suggesting a potential new approach for treating drug-tolerant persister cancer cells.
A groundbreaking study identifies FAM3C as a key regulator of breast cancer progression within the tumor microenvironment. The overexpression of FAM3C promotes breast cancer cell survival and metastasis, while its depletion inhibits tumor growth in genetically engineered mouse models.
Researchers have developed a new technique that provides a previously unattainable view of the mechanical properties inside the cell nucleus. The study reveals the peculiar dynamic structural features in living cells, which appear to be crucial for cell function.
A team of researchers identified a CTP-dependent transcription factor controlling Shigella virulence gene expression, providing new avenues for combating this and related bacterial pathogens. The discovery sheds light on the molecular mechanisms underlying bacterial pathogenesis.
Researchers identified a key chromatin modifier-centered pathway for grain size regulation in rice, showing that HHC4 and bZIP23 interact and enhance grain size. Phosphorylation of HHC4 by TGW3 triggers negative influences on the pathway, leading to increased rice yield.
Researchers from Tokyo University of Science discovered that manipulating polyamines enhances the functional profiles of monoclonal antibodies. The study found that controlling polyamine levels increases IgG galactosylation, leading to improved therapeutic efficacy.
Researchers found a shared genetic trait that predicts a higher risk of small lung vessel disease and its severe form, pulmonary arterial hypertension. This discovery could lead to personalized treatments for patients with limited oxygen response.
Researchers found that the deletion of the Gtf2i gene impairs mitochondrial organelle formation and function, leading to abnormal cell behavior and neurodevelopmental pathologies. This discovery sheds light on the mechanism behind Williams syndrome, a rare genetic disorder characterized by cognitive and social impairments.
Researchers discovered that fruit bats have a genetic system controlling blood sugar levels, allowing them to consume up to twice their body weight in sugary fruit daily. The study's findings may lead to the development of better insulin- or sugar-sensing therapies for people with diabetes.
A new study has identified three genes, MANBA, TNFRSF13B, and EEF1A1, as crucial in the regulation of IgG galactosylation, a trait associated with ageing. The research used GWAS to analyze IgG glycosylation phenotypes in a large sample size, increasing the understanding of this complex posttranslational modification.
Researchers found that Angelica gigas extract improves vascular function in high-fat diet rats, reversing endothelial dysfunction and increasing NO bioavailability. The extract regulates IRE1α sulfonation and RIDD signaling, promoting NO production via the SIRT1-eNOS axis.
Researchers found that kisspeptin neurons with dynorphin receptors are crucial for hormone secretion and ovulation. The study provides new insights into the central mechanism underlying reproduction and may lead to treatment of ovarian disorders.
A recent study published in Nature reveals that mitochondrial dysfunction disrupts dietary lipid processing in enterocytes, leading to abnormal fat accumulation and impaired nutrient delivery. The findings provide new insights into the gastrointestinal symptoms of mitochondrial disease and may lead to novel therapeutic approaches.
The study identifies FAM53C as a cytosolic-anchoring inhibitory binding protein of the kinase DYRK1A, regulating its activity and cellular location. This finding may provide potential clinical insights into treating Down syndrome and related diseases.
Researchers identified Elovanoid-34, a molecule that modulates the activity of TXNRD1 protein, which regulates antioxidant defenses. This discovery opens new therapeutic avenues for degenerative brain and eye diseases, as well as promoting healthy aging.
Researchers discovered a novel therapeutic target BAMBI that suppresses immune cells, reducing the effectiveness of radiation therapy and inducing therapy resistance in cancer patients. BAMBI's expression is associated with improved survival rates, suggesting it as a promising approach to overcome radiation therapy resistance.
Researchers at Salk Institute assembled the most complete atlas of the mouse brain by analyzing over 2 million brain cells. The detailed atlas reveals thousands of cell types, their connections, genes, and regulatory programs active in each cell, providing new insights into human disease vulnerabilities.
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 from the University of California, Berkeley, and the University of Oxford found that formaldehyde inhibits DNA methylation, turning genes on or off. The study suggests that high levels of formaldehyde may suppress the body's attempts to prevent cancer.
Ferroptosis is characterized by lipid peroxidation, iron-dependent oxidative stress, and distinct morphological alterations. Recent research highlights the importance of compounds in targeting ferroptosis for therapeutic applications.
A study published in Nature Communications sheds light on the critical role of P4-ATPases, particularly ATP8B1-CDC50A, in maintaining lipid asymmetry in cell membranes. The research team used cryo-electron microscopy to determine the structure and function of the human flippase complex, revealing its regulation by phosphoinositides.
Researchers found a significant increase in extracellular vesicles released by aged keratinocytes, which were also enriched with specific microRNAs. These EVs impaired young keratinocyte proliferation and organogenesis, mimicking aged skin defects.
A study by Max Planck researchers has discovered an epigenetic regulator MSL2 that ensures the expression of both alleles of haploinsufficient genes, crucial for human health. This mechanism allows for tissue- and cell-type specificity in gene dosage, opening new directions for understanding diseases and developing potential treatments.
Scientists at St. Jude Children's Research Hospital identified genes directly regulated by the oncogenic HOXA9 protein in high-risk pediatric leukemias. The study found two major targets, FLT3 and CDK6, which can be therapeutically targeted with drugs, showing promising outcomes in preclinical models. Additionally, researchers discover...
Researchers at Goethe University Frankfurt have identified a specific gene locus, MYNRL15, that is critical to the survival and replication of leukemia cells. Inhibiting this gene has been shown to deactivate genes necessary for AML cell survival, offering a new possibility for fighting leukemia.
Research reveals chromatin's role in preventing DNA-RNA hybrid formation, which causes genomic instability and cancer. DNA-RNA hybrids are a risk factor in tumour development, suggesting potential use as an indicator of carcinogenic risk.
Researchers established a framework for how polyubiquitin chains regulate condensate formation in cells, shedding light on the mechanisms behind neurodegenerative diseases like ALS. The 'Goldilocks Effect' found that specific spacing between ubiquitin units optimizes condensate formation.