Articles tagged with Cell Junctions
Rockefeller University scientists have uncovered crucial steps in the nuclear pore complex's dilation and constriction mechanism. Transport factor karyopherin initiates ring dilation by stabilizing Nup58, allowing larger molecules to pass through.
A new study reveals Group B Streptococcus induces a protein that disrupts junctions between brain cells, increasing permeability and allowing the bacteria to breach the blood-brain barrier. Inhibition of this protein increases survival in zebrafish infected with GBS.
A new study by Uppsala University researchers reveals a missing link in the evolution of complex life, identifying a new group of microorganisms called Lokiarchaeota. This discovery provides insights into how complex cell types emerged from simple microbes, challenging long-standing scientific questions.
Research found that melanoma cells with higher levels of melanin have increased mitochondrial Complex II function and reactive oxygen species production. Triggering hyperpigmentation in these cells also led to increased ROS generation and complex II activity.
Researchers from the University of Buffalo have discovered new details of how autoantibodies destroy healthy cells in skin, providing insights into autoimmune mechanisms that could help develop and screen treatments for patients suffering from all autoimmune diseases. The study uses atomic force microscopy to analyze cell junctions and...
Scientists create a cost-efficient way to set up thousands of experiments simultaneously using tiny droplets. Their experiment shows that oscillations in the individual droplets differ strongly, with small drops displaying stronger variations than large ones.
Researchers have identified two ruthenium-based complexes that target cancer cells more effectively and are less toxic than current chemotherapies. The complexes, which seem to target cells in hypoxic states, could complement widely used platinum-based therapies like cisplatin.
A Stanford study reveals that a protein complex called BAF may play a crucial role in preventing many forms of cancer. The complex, which affects DNA packaging in cells, works to suppress tumor development in various tissues.
A new technique allows researchers to create complex tissues with any spatial organization, mimicking the body's natural complexity. The 'lock-and-key' method uses tiny shapes that lock into templates, allowing for rapid assembly of large tissues and precise control over cell alignment.
Researchers have discovered a genetic mutation in the NESP4 gene, which disrupts the LINC complex and leads to hearing loss. The study highlights the importance of nuclear positioning for normal hearing.
A study identified a novel sensor that is necessary to activate the immune response to viral infection. The research highlights the complex and overlapping mechanisms used by immune cells to detect viruses, providing insights into the development of more effective antiviral therapeutics.
The study reveals that human proteins with Dermatan Sulfate affinity can become autoantigens, driving autoreactive B-1a cell responses and autoantibody production. Researchers identified over 200 autoantigens, including novel ones, which could lead to better diagnostics and personalized treatment for autoimmune diseases.
Scientists discovered remarkably preserved remains of ancient organisms in Scottish lochs that lived a billion years ago. These fossils show complex algal cells with nucleus, mitochondria, and chloroplasts, indicating early evolution of photosynthesis and sexual reproduction.
Researchers developed a novel 3D cell imaging method using multifocal plane microscopy to track single molecules in live cells for extended periods. This technique overcomes previous limitations and enables the study of complex spatial-temporal dynamics of protein transport.
Scientists at Max Delbrück Center for Molecular Medicine identified a key transcription factor, Grhl2, that regulates the expression of cell junctional molecules E-cadherin and claudin 4. This discovery sheds light on the development of diseases such as spina bifida and potentially impacts kidney function.
Mitochondria power stations are crucial for complex cell evolution and innovation, enabling eukaryotes to accumulate more genes than bacteria. The tiny mitochondrial genome is essential for cell respiration, allowing cells to support a vast number of genes and proteins.
A new study uses fuzzy logic to predict how cell aging progresses, uncovering a protective and adaptive mechanism that extends lifespan. The model helps decipher the underlying connections and networks in cellular mechanisms, offering insights into age-related diseases.
A Japanese research group discovered that TRPV4 ion channel plays a crucial role in maintaining the skin's barrier function by regulating cell-cell junctions. Removal of TRPV4 from keratinocytes led to leaky junctions and weak skin barriers, highlighting its importance in preventing dehydration.
Yang Cao will use the five-year grant to develop computational methods and mathematical theories to integrate various models of the cell cycle. The project aims to improve understanding of the complex process, which is linked to cancer and cardiovascular disease.
The protein LMO4 helps maintain a critical balance between two types of neurons, preventing motor dysfunction in mammals. Inhibitory neurons promote calm activity, while excitatory neurons encourage activity. LMO4 promotes inhibitory neurons by forming a complex that binds to DNA and blocks the development of excitatory neurons.
Researchers found that acetylation affects yeast lifespan through the NuA4 enzyme complex, which also controls sugar production in cells. This discovery may have implications for understanding aging and human diseases, as the mechanisms identified are conserved across species.
Researchers at Lawrence Berkeley National Laboratory demonstrate a novel approach to assemble cells into three-dimensional, multicellular microtissues. By controlling cellular connections, they can create tissues with sophisticated properties, such as the stem-cell niche.
A team of researchers, led by Mark Kahn, has discovered that CCM is caused by leaky junctions between cells in the lining of blood vessels, linked to mutated or missing proteins in a novel biochemical process called Heart-of-glass (HEG)-CCM pathway.
Researchers enhance the body's ability to fight cancer by boosting killer T cells' activity and keeping them alive longer. The new approach has shown promise in treating cancer patients with fewer side effects than existing treatments.
Researchers have discovered that choanoflagellates, single-celled organisms, possess similar levels of proteins used for cell communication in more complex organisms like humans. This finding confirms their role as an evolutionary link between single-celled and multi-cellular organisms.
The MMB/dREAM complex, composed of Myb and E2F2-RB proteins, epigenetically regulates expression of the Polo kinase in Drosophila. Disruptions to this pathway are associated with human cancers and may lead to similar epigenetic changes.
A study published in PLOS Biology reveals that multiple Arp2/3 regulatory proteins play distinct roles in regulating actin networks, which are crucial for cellular processes such as cell migration and intracellular transport. The research provides new insights into the coordination of protein activities to generate complex actin networks.
The Conaway Lab has discovered a critical role for the chromatin remodeling complex INO80 in activating transcription mediated by the transcription factor YY1. This finding provides new insights into how YY1 regulates gene expression, which is crucial for cell cycle control and may have implications for cancer therapy.
Researchers created a nanoscale probe that can capture both biochemical makeup and topography of complex biological objects in their natural environment. The Scanning Mass Spectrometry (SMS) probe helps understand cellular interactions at the most fundamental level, including cell signaling and protein expression.
Researchers at Scripps Research Institute found that injecting cytokine-antibody complexes stimulates a massive selective increase in T cell response. The study suggests these complexes could be clinically useful for selectively boosting or inhibiting immune responses in vivo, potentially treating autoimmune disease and cancer.
A Brg1 mutation in mice reveals the importance of SWI/SNF complexes in beta-globin regulation and erythropoiesis. This study may provide insight into common ailments such as beta thalassemia and anemia. The findings highlight the significance of chromatin-remodeling complexes in development and physiology.
A new study published in Cell identifies RISC as a three-protein complex responsible for microRNA production and specificity in gene silencing. The complex, consisting of Dicer, Argonaute 2, and TRBP enzymes, oversees the creation of microRNAs and guides them to target specific messenger RNAs.
Researchers at Cold Spring Harbor Laboratory have made a breakthrough in understanding gene regulation by opening the O-box, a previously inaccessible region of genes. This discovery has significant implications for the development of new therapies and treatments.
Researchers have uncovered a fossilized structure in the nuclear pore complex that suggests ancient bacteria could curve their membranes, leading to the development of endomembrane systems and eukaryotic cells. This discovery provides insight into the evolution of eukaryotes and their intricate internal processes.
Researchers at Brown University have discovered that the Arp2/3 protein complex plays a critical role in regulating the first step of human blood clotting. The complex drives platelets to change shape, forming long arms that grab onto other cells and fibrin, ultimately leading to clot formation.
Researchers have determined the atomic structure of the Arp2/3 complex, a protein responsible for initiating actin filament growth in moving cells. This discovery provides insights into cellular movement mechanisms and has implications for understanding various biological processes, including immune responses and neural development.