Articles tagged with Cell Surface Receptors
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Researchers discovered that certain antibodies employ unusual tactics to block bacterial adhesion, including creating molecular wedges and conformational traps. These mechanisms could lead to the development of immune therapies targeting glycan-binding cell-attachment proteins produced by bacteria causing urinary tract infections.
Researchers have discovered a new druggable cancer target, NPM1, which is expressed on the surface of malignant AML cells. Monoclonal antibodies targeting NPM1 showed robust anti-tumor activity in multiple in vivo models of AML, with no apparent toxicity to non-cancerous blood cells and stem cells.
A single mutation in the spike protein of western equine encephalitis virus is enough to prevent it from attaching to human and horse cells. However, a change in the viral spike protein enables WEEV strains to attach to a different receptor, found on mammalian brain cells, which is shared by its cousin eastern equine encephalitis virus.
Researchers at Aarhus University have mapped the precise structure of CD163 bound to haptoglobin-haemoglobin complex, providing unique insight into its function. This breakthrough connects earlier observations and opens up opportunities for studying the evolution of CD163's structure and interaction with other proteins.
Increasing the spacing between integrin-ECM binding domains on the extracellular matrix can boost the efficiency of ultrasound treatment applied to kill cancer cells. A new study found that this increased spacing triggers myosin forces, pumps more calcium inside, and promotes cell death.
A new medication approved to treat type 2 diabetes and kidney disease also significantly reduces the risk of heart attacks and strokes among these patients. Sotagliflozin, a sodium-glucose cotransporter inhibitor, blocks proteins that help control blood sugar levels and has been shown to reduce cardiovascular events by 23%.
CAR-T cell therapy has been shown to transfer CAR molecules to bystander T cells through trogocytosis, allowing the therapeutic effect to spread beyond the engineered cells. The study reveals that the transmembrane domains of these molecules regulate this process, potentially leading to improved efficacy and reduced side effects.
A team of scientists developed a computational design tool called SPaDES to create new membrane receptors that outperform natural counterparts. The new receptors were designed by optimizing water-mediated interactions, resulting in higher stability and signaling efficiency.
Researchers found significant functional variations between rodent and human PD-1 due to evolutionary divergence. The study reveals a unique motif present in most mammals but missing in rodents, leading to uniquely weaker rodent PD-1.
Scientists at the Institute of Physical Chemistry Polish Academy of Sciences created a method to measure molecular brightness and eliminate background light. This technique allows for counting individual photons emitted by molecules, enabling precise measurement of molecule concentrations. The researchers applied this approach to study...
Scientists at Goethe University Frankfurt have discovered a new way to tailor natural killer cells to target leukemia cells, improving their efficacy. The researchers used CRISPR/Cas9 gene editing to disable an immune checkpoint, allowing the modified cells to attack cancer cells more effectively.
Researchers at UChicago captured complete images of adhesion G protein-coupled receptors, revealing their complex extracellular region's interaction with the transmembrane region. The findings suggest alternative means of activating the receptor without separating the GAIN domain.
Researchers found that antibodies targeting a specific site on the malaria parasite's virulence protein bind to the human host's endothelial protein C receptor, neutralizing the parasite. The discovery provides new insights into prevention and treatment of severe malaria.
New research led by Andrija Sente uncovers the atomic structure of GABA <sub> A </sub> receptors, revealing unique subunit combinations that create previously unrecognized receptor types. These findings highlight the need to account for variations in drug development to avoid unintended binding sites.
Researchers at University of California - San Francisco designed biological sensors that can ensure engineered cells are activated in tumor environments, making cancer therapies more effective. The new sensors, called SNIPRs, can bind to soluble molecules and alter gene expression, offering a promising approach for targeted therapies.
Researchers have discovered a mechanism to detach and recycle parts of cellular canal membranes as needed. The study, conducted with supercomputer simulations, shows that protein regions can cause the membrane to bulge and pinch off, forming vesicles for recycling.
A new mechanism has been found by which tumor cells escape the immune system, involving a protein called IRGQ. Studies have shown that suppressing IRGQ can trigger a stronger immune response against cancer cells, leading to improved survival rates in liver cancer patients.
Researchers identified a protein in mammals that welcomes arteriviruses into host cells to start an infection. The team also found that an existing monoclonal antibody protects cells from viral infection, providing potential therapeutic strategy.
Researchers uncover new insights into protein signal transduction, revealing key details about GRB2 and SOS1's role in passing signals. They discovered differences in the domains' dynamics and binding affinities, providing a more detailed mechanism for liquid-liquid phase separation.
Researchers have discovered molecules capable of limiting the side effects of opioids by blocking the receptor responsible for their action. The scientists created even smaller molecules that retain the same properties, which could prove far more effective than current treatments in mitigating the harmful effects of opioids.
Researchers at the University of São Paulo developed a synthetic peptide that mimics the ACE2 receptor, blocking SARS-CoV-2 invasion and reducing inflammation in human lung cells and mice. The peptide could be customized for every variant, offering a fast-acting molecular shield against the virus.
Researchers from Johns Hopkins Medicine discovered how a brain cell surface molecule shapes neuron behavior, finding that it suppresses selectivity in neurons. The study's findings may help scientists better understand causes of autism, schizophrenia, and epilepsy.
Researchers at Rice University have uncovered new information about the structure of cholesterol molecules in cell membranes using Raman spectroscopy. The study sheds light on previously unknown structural variations and provides a simplified framework for analyzing membrane cholesterol chain structures.
Researchers at UCSF used cryogenic electron microscopy to study the protein TGF-Beta, which plays a crucial role in development and cancer. They found that TGF-Beta can signal even when bound to a 'straitjacket' within the cell membrane, challenging decades-old dogma on its function.
Researchers aim to find a new treatment pathway for diabetic retinopathy by targeting the IL-6 protein. They suspect that selectively inhibiting trans-signaling while allowing cis-signaling will stop damage and restore balance in the retina.
Researchers have identified the human odorant receptor for geosmin, a compound responsible for the distinct 'earthy' to 'musty' odor found in soil, plants, and certain foods. The discovery could aid in developing novel detection systems to monitor food quality and water purity.
University of California San Diego researchers used cryo-electron microscopy to capture the first 3-D images of a key muscle receptor, shedding light on why newborn humans develop slowly while cows mature quickly. The study's findings may help develop future treatments for muscular disorders.
Researchers have discovered that SARS-CoV-2 can infect more types of lung cells than previously thought, including those without known viral receptors. The study also found that the lung can independently muster an inflammatory antiviral response without immune system help when exposed to the virus.
A recent study by Iowa State University researchers found that dairy cows have rich supplies of sialic acid, a sugar molecule that acts as a receptor for influenza. This discovery sheds light on how the virus attaches to hosts and raises questions about the risks of consuming raw milk from infected cows.
Scientists have discovered that ADGRF5 helps maintain the integrity of the glomerular filtration barrier, which is critical for filtering waste from the blood. The study found that disrupting ADGRF5 expression led to abnormalities in the glomerular basement membrane and increased albuminuria.
Scientists at Johns Hopkins Medicine have discovered the mechanism of action of the widely-used epilepsy drug perampanel, which targets the AMPA receptor to dampen brain cell excitability. The study provides new insights into the potential applications of perampanel in treating other neurological conditions such as Alzheimer’s disease,...
Researchers have uncovered a novel regulator governing how cells respond to mechanical cues, finding that ETV4 bridges cell density dynamics to stem cell differentiation. This discovery has significant implications for controlling cancer cells through mechanical cues.
Researchers at TUM have uncovered a mechanism by which tumor cells prevent the formation of immune responses, including cytotoxic T cells. This discovery provides rationales for new cancer immunotherapies and could enhance existing treatments.
Researchers at NJIT are developing a hydrogel therapy that prevents viruses like SARS-CoV-2 from attaching to and entering cells. The peptides in the gel form a 'molecular mask' that muffles the virus's action, providing a potential first line of defense against biological threats.
Researchers have identified the human odorant receptor responsible for the characteristic petrol note in German Riesling wines. The receptor, OR8H1, is triggered by UV exposure and high levels of carotenoids in grapes. This discovery may lead to new sensor technologies for food aromas and quality control purposes.
Researchers developed novel therapeutic bispecific antibodies targeting IgM and B-cell surface antigens, which directly inhibited cell proliferation via cell-cycle arrest and apoptosis in vitro. These findings suggest that anti-IgM/B-cell surface antigen-binding specific antibodies are promising therapeutic agents for B-cell malignancies.
A research team has made a significant breakthrough in understanding the GPR156 receptor protein's role in maintaining auditory function. The study reveals that GPR156 exhibits sustained activity even without external stimuli, highlighting its potential as a target for treating congenital hearing impairments.
Researchers deciphered the molecular structure of bulevirtide in complex with HBV/HDV receptor NTCP, revealing a unique 'plug' that inhibits virus entry. The study also sheds light on evolutionary adaptation of HBVs to host species and provides insights for developing smaller, more effective active agents.
A new study by Karolinska Institutet researchers has identified the protein on cell surfaces that the Crimean-Congo hemorrhagic fever virus uses to enter human cells. This discovery is crucial in developing effective treatments and vaccines for the deadly disease, which can cause up to 40% mortality rate.
A Johns Hopkins Medicine research team found a cell surface protein that senses odors and chemicals may be responsible for the long-known difference in blood pressure between females and males. The study, published in Science Advances, used data from mice and humans to investigate the link between an odor sensor and blood pressure.
A new genetic test has identified patients with triple negative early-stage breast cancer who are unlikely to respond to immunotherapy drugs. The test, called ImPrintTN, can predict a patient's likelihood of responding to these treatments and help avoid severe side effects.
Research reveals that dietary tryptophan can be broken down by gut bacteria into small molecules that bind to a receptor, triggering a pathway that reduces the production of proteins used by E. coli to attach to the gut lining. This ultimately prevents the pathogen from colonizing and causing infection.
Researchers at the University of Helsinki have made a groundbreaking discovery about the Commander complex, a vital cellular machinery. The study reveals that mutations in this complex are associated with developmental disorders such as Ritscher-Schinzel syndrome and Alzheimer's Disease.
A study by University of Alabama at Birmingham researchers discovered that protons are the primary signals transmitting tactile sensations from Merkel cells to nerves. Protons bind to ASIC receptors on nerve endings, triggering an influx of sodium ions that propagate action potentials up the nerve towards the brain.
Researchers have discovered that plant immune receptors and growth-related proteins share a common evolutionary ancestry, allowing for the creation of hybrid receptors with enhanced functionality. This breakthrough could lead to the development of disease-resistant crops by isolating and engineering immune receptors from various plants.
Researchers at Brookhaven National Laboratory successfully produced large quantities of human ACE2 receptor protein in mouse cells, allowing for the study of viral receptors and potentially developing new therapies. The method could also facilitate the production of other complex proteins that have proven difficult to produce.
Researchers at Karolinska Institutet used DNA origami to activate the Notch receptor in a new way, revealing it can be activated 'on demand' with the help of a protein called Jag1. The study opens new avenues for understanding the Notch signalling pathway and its role in serious diseases like cancer and Alagille Syndrome.
Researchers at Washington University School of Medicine discovered a decoy molecule that protects against the potentially deadly brain infection. The study advanced understanding of viral protein and receptor interactions, laying a foundation for treatments and vaccines.
Researchers have identified promising treatment candidates for morphine tolerance and cancer, as well as a biomarker for kidney injury. A monoclonal antibody targeting the mu-opioid receptor has been shown to alleviate morphine tolerance and physical dependence, while inducing excessive mitochondrial fission in tumor cells. Additionall...
Scientists have developed a new system to display epitopes in mammal cells for immunization studies, potentially speeding up the immunization process. This method allows for targeted immune responses against specific viral proteins without the need to purify antigens.
Researchers at Weill Cornell Medicine discovered a genetic variant in the GIP receptor that may help individuals resist obesity. The variant enhances insulin release and glucose metabolism, allowing mice with the variant to process sugar more efficiently and stay leaner.
A study by University of Texas Health Science Center at San Antonio researchers found that corticotropin-releasing factor (CRF) activates immune cells in the dura membrane under the skull, leading to pain signals. This discovery may lead to the development of a small-molecule drug therapy to inhibit CRF and MrgprB2 interaction.
A research team from the University of California - Davis Health has identified a crucial epitope on the CD95 receptor that can trigger programmed cell death in cancer cells. This finding could lead to improved cancer treatments and potentially enhance CAR T-cell therapy for solid tumors like ovarian cancer.
Scientists have developed a technique to restore the function of human-derived GPCR proteins in yeast cells, which could accelerate research and lead to more effective treatments. The approach, using error-prone polymerase chain reaction, introduces random mutations that enhance protein stability and function.
Researchers have developed a synthetic peptide that could help reduce vascular problems associated with acute respiratory distress syndrome in COVID-19. The peptide, called TIP, works by binding to a subunit of the epithelial sodium channel, which helps maintain barrier function and prevent damage from viral proteins.
Researchers developed a technology to rapidly screen genetic edits in immune cells, identifying a new combination that improves their effectiveness against cancers. By combining multiple genes into long DNA stretches and testing thousands of combinations, scientists discovered that different CARs can be optimized by different factors.
Researchers found that Dectin-1 stimulation induced a unique immune signature in HIV-positive older adults, characterized by increased levels of IL-12, TNF-α, and IFN-α. This signature may contribute to the pro-inflammatory environment associated with HIV and aging.
Researchers discovered cytoplasmic retinoic acid receptors, such as RARalpha, are essential for T cell linking sensing at the cell surface with downstream signaling cascades and gene expression programs. The study sheds new light on TCR signaling and its connection to cancer treatment.
Researchers at TUM develop an RNA agent for a lung spray that slows macrophage activity, reducing lung inflammation and fibrosis. The active substance RCS-21 is delivered via an inhaler through a special sugar molecule, showing promise in treating acute inflammatory lung damage.
A research team has discovered the human odorant receptor for para-cresol, a compound with a strong horse stable-like odor. The OR9Q2 receptor is highly selective and responds to physiologically relevant concentrations of para-cresol, as well as a structurally similar compound.