Articles tagged with Cell Responses
A new study found that a single dose of the Pfizer or Moderna mRNA vaccine can stimulate an immune response in people who have previously recovered from COVID-19. The vaccine's ability to generate antibodies and B cell responses was shown to be effective against the South African variant.
Recent discoveries have revealed a complex picture of plant defense, with responses to PRR receptor signaling and NLR signaling extensively overlapping. The two immune branches are now considered to be more intimately connected than previously thought, leading to a re-thought model of separate ETI and PTI pathways.
A team of researchers from Pompeu Fabra University has developed a new technology to print cellular devices on paper that can be used outside the laboratory. These devices can detect multiple markers and generate complex responses, making them useful for applications such as detecting mercury, cholera, or preeclampsia.
A phase 1 study found that a single dose of Ad26.COV2.S vaccine induced both antibody and cellular immune responses. The vaccine is currently being tested in two phase 3 clinical trials to determine its efficacy against COVID-19.
Researchers found that protective B cell responses remain stable over time, but do not recognize emerging SARS-CoV-2 variants from Brazil and South Africa. A large proportion of neutralizing antibodies generated by long-lasting B cells only target conserved epitopes.
Researchers from Osaka University have discovered that insect neurons promoting egg-laying require a circadian clock gene for day length-dependent responses. This study provides new insights into the importance of biological clocks in regulating seasonal physiological functions like reproduction and temperature tolerance in insects.
Tiny components within cells, such as lysosomes, drive the movement of the endoplasmic reticulum (ER), a key organelle responsible for protein production. This discovery has significant implications for understanding and treating neurodegenerative diseases like Parkinson's and Alzheimer's.
Researchers used a trans-omic approach to map the total landscape of diabetes regulation in mice. They found that obese mice lack rapid responses to glucose and instead use slower methods like changing gene expression.
UC Santa Barbara researchers develop a method to increase both affinity and cooperativity in aptamer-based biosensors, allowing for fine-tuned regulation of receptor properties. This approach enables precision biosensing applications, such as detecting low concentrations of target molecules like chemotherapy drugs.
Researchers have discovered a general property for understanding how immune cell receptors sense and respond to microbial signals. The result led to a more effective cancer immunotherapy in mice, which could lead to more effective vaccines for existing and novel viruses.
A new study reveals that brain cell dysfunction in low oxygen is caused by the body's protective response system, which ultimately impairs brain cell function. Researchers have identified a class of drugs that can overcome this damage and restore brain-stem cell function.
A new study by Tomohiro Kurosaki at Osaka University reveals that Bach2 expression and reduced mTORC1 activity are necessary for activated B cells to become memory B cells, a type of white blood cell that sticks around for years and provides rapid responses to re-infection. This understanding can help develop efficient vaccines.
Researchers identified a time delay in the production of an inhibitory factor that triggers cell refractoriness to interferon treatments, suggesting strategies for enhanced therapeutic response rates.
Researchers at Université catholique de Louvain have discovered a molecule that blocks immune responses in cancer patients, and are now developing an immunotherapy to neutralize it. The treatment combines anti-GARP antibodies with another proven approach to increase effectiveness in fighting cancer.
A novel functional class of cortical neurons, known as holistic bursting cells, has been discovered to represent learned complex objects as wholes rather than parts. These cells exhibit a unique mode of high-rate, prolonged burst firing response to trained sounds, including chords consisting of multiple pure-tones.
Researchers discovered that individual muscle cell contractions provide essential information, enabling muscles to flex with precise control. This finding challenges the notion of 'noise' or error, revealing biological systems may have evolved to incorporate variation as a means of communication.
Scientists discovered human monoclonal antibodies specific to HBV surface antigens in natural controllers, which showed neutralizing ability and capabilities of blocking viral infection. The findings highlight a promising therapeutic tool for treating chronic HBV infection and may provide an alternative to existing treatments.
Researchers at CNIC and IIS Princesa discover that sodium ions regulate mitochondrial function, increasing reactive oxygen species production in early stages of hypoxia. This finding could lead to new treatments for diseases related to hypoxia, such as stroke and heart attack.
A team of researchers has identified a crucial ion channel protein in mast cells that regulates calcium levels, which are essential for the activation of many types of immune cells. This discovery has significant implications for the treatment of allergies and autoimmune diseases.
A research team mapped molecular changes in cells near amyloid plaques, finding two co-expression networks that respond to amyloid beta deposition. These networks, expressed by astroglia, microglia, and oligodendrocytes, show both protective and damaging effects on the brain, highlighting the complexity of Alzheimer's disease.
An analysis of COVID-19 patients identified unique immune signatures in severe cases. The study found characteristic immune phenotypes and innate immune system changes, suggesting targeted strategies for clinical care.
A Yale, Baylor study reveals new cell types in lungs affected by Idiopathic Pulmonary Fibrosis (IPF), revealing how cells change in response to the disease. The findings deepen understanding of IPF and could improve treatment of it and other fibrotic lung diseases.
Scientists have developed a device that can manipulate and measure cells' movements in response to electric fields, enabling new possibilities for tissue engineering. The SCHEEPDOG system allows researchers to program complex cell maneuvers, such as full circles, with thousands of neighboring cells executing on command.
Scientists have found that cell wall extracts from immune-active plants can trigger plant immunity and disease resistance, providing a new approach to protecting crops against pathogens and pests. This breakthrough discovery could lead to the development of simple, sustainable, and effective treatments to reduce crop losses.
Plant cells use mechanosensitive ion channels to sense cell swelling and induce programmed cell death. This regulatory mechanism protects the plant from damage. The discovery provides insight into how plants respond to mechanical signals, such as cell swelling, rather than chemical signals.
Researchers find that repositioning the spleen during surgery can lead to physical changes and altered immune responses, suggesting a key role of mesothelial cells in modulating inflammation. The study suggests that breaking connections between these cells and the spleen may have consequences for immune function.
Researchers at Tokyo University of Science have discovered a molecular 'alarm' system in plants that protects them from predators. The study identified two novel receptor-like kinases, GmHAK1 and GmHAK2, which trigger defense responses in soybean leaves when exposed to oral secretions from the cotton leaf worm.
Researchers have created a novel vaccine delivery technology using a finger-tip sized patch with tiny needles that penetrate the skin, releasing molecules to prompt immune responses. The technology has shown improved immunogenicity, including cellular immune responses, and potential advantages in ease of fabrication and storage.
Plant cells must balance trade-offs between communication, resource exchange, and protection against pathogens like fungi and bacteria. Researchers discovered that chitin perception in plasmodesmata triggers specific signaling pathways that allow cells to isolate themselves, regulating vital processes independently of immune responses.
Researchers at Columbia University used 3D imaging to study how the nose detects and processes different odors, revealing a complex code that is shaped by interactions within the nose. The study challenges traditional views on how the brain identifies individual components of mixed scents.
Researchers at the University of Trento identified a new molecular mechanism that determines the fate of cancer cells. The 'switch' protein DHX30 regulates p53's response to treatment, leading to either cell cycle arrest or programmed cell death, with potential applications for solid tumors in the colon, breast, and lung.
Researchers at the Babraham Institute found that applying genital wart treatment can enhance the immune system of older mice and humans. By boosting T follicular helper cells, they were able to rescue age-dependent defects in immune cell types, offering hope for improving vaccination response in older populations.
Researchers at Institut Pasteur found that immune cells can attack cancer cells remotely through soluble molecules like interferon-gamma. This discovery supports a key target for future immunotherapy approaches and may enable T lymphocytes to act on a large number of cancer cells.
Chronic lymphocytic leukemia (CLL) patients respond differently to ibrutinib treatment due to individual genetic and epigenetic profiles. The study reveals a shared genetic program in CLL cells responding to ibrutinib, but with patient-specific execution, leading to varying disease progression rates.
A new study reveals that eating activates immune cells in the gut, protecting against pathogens and preserving health. Regular mealtimes also trigger an anticipatory response to increase immunity.
A study found that individual mammalian cells in a population fail to respond synchronously to estrogen stimulation, neither do individual gene copies. However, a small molecule inhibitor increased the response of individual alleles to hormone, establishing a previously unrecognized mode of regulation at the single cell level.
Researchers at Salk Institute discover intrinsically photosensitive retinal ganglion cells (ipRGCs) in humans, which respond to blue light and help establish healthy day-night cycles. The study's findings may lead to 'smart' lights that prevent depression, foster sleep, and maintain circadian rhythms.
Researchers found that gene duplication and DNA circle formation can be actively driven by the environment, allowing yeast to adapt faster. Older cells may gain an advantage by holding onto more DNA circles than they pass on, a phenomenon resembling a cellular insurance policy.
Researchers identified the molecular signals that activate MAIT cells during Salmonella or Legionella infections. They found that IL-23 is key to expanding MAIT cell numbers and attacking the infection.
Researchers developed a faster and stronger rabies vaccine by adding B cell activating factor (BAFF) to an existing inactivated virus-based vaccine. This new approach enhanced the immune system's response, increasing virus-neutralizing antibodies quickly and significantly.
Researchers found that relapses are clinically silent, but gametocytes continue to circulate and may infect mosquitoes. The study uses nonhuman primates to assess pathogenesis and host responses during relapses.
A recent study published in the Journal of Nutritional Biochemistry found that humans have highly individualized inflammatory responses to eating a high-fat meal. The researchers used a sensitive test to analyze gene expression in response to the meal, finding that responses by more than 13,000 genes differed between subjects.
A new study led by WVU researcher Jennifer Franko explores the role of short-chain fatty acids in altering sex-specific immune responses. The study aims to determine if SCFAs influence immune activation differently in males and females, with potential implications for vaccine efficacy and autoimmune disorder prevention.
A University of Arizona research team discovered complex biochemical circuits in cells that follow control theory principles, controlling growth in response to nutrient availability. The study found that the TOR and PKA pathways work together like a thermostat, with one pathway speeding up response and the other maintaining stability.
Artificial cells have been created by Imperial College London scientists that can sense changes in their surroundings and respond with drug molecules or harm removal. This breakthrough uses a simpler approach to mimic complex biological responses, making it easier to engineer artificial cells for various biotechnological applications.
A new AI-powered tool, scGen, accurately models cellular response to perturbations, enabling reliable predictions for different systems. This breakthrough has the potential to revolutionize the understanding and treatment of common human diseases.
Researchers discovered a molecule involved in immune cell migration that plays a critical role in establishing immune responses. The COMMD3/8 complex promotes signal transduction of chemokine receptors to facilitate immune cell migration, which is essential for efficient immune responses and proper functioning of the immune system.
Researchers studied how microglia cells in the brain respond to toxic proteins associated with Alzheimer's disease. The study found that age, sex, and genetics affect microglial response, suggesting that modulating this response could lead to new treatments.
A Phase II trial led by the University of Texas MD Anderson Cancer Center reports a 90% response rate for patients with blastic plasmacytoid dendritic cell neoplasm (BPDCN) treated with tagraxofusp. The treatment was effective regardless of prior therapy, and survival rates were relatively high at 59% and 52% at 18 and 24 months, respe...
Researchers create synthetic molecular components that interact with each other to process signals, enabling complex tasks like embryonic development and differentiation. The system allows for analog-to-digital conversion of cellular responses.
A Phase 1 clinical trial of CAR-T therapy found an 88.2% overall response rate in patients with relapsed/refractory multiple myeloma. The treatment, called LCARB38M, targets the B-cell maturation antigen and achieved a stringent complete response in 13 patients.
The anti-PD-1 monoclonal antibody pembrolizumab showed promising antitumor activity with durable responses in patients with pretreated, advanced small cell lung cancer (SCLC). The study found an objective response rate of 19.3% and a median progression-free survival of 2 months.
A new study by MD Anderson Cancer Center suggests that certain B cells with unique characteristics can predict which patients are most likely to respond to immunotherapy for metastatic melanoma and kidney cancer. The researchers found that activated B cells with specific phenotypes were associated with a better response to treatment.
Two clinical studies show that liquid biopsies can accurately track lung cancer treatment responses, detecting changes in circulating tumor DNA four weeks earlier than CT imaging. The tests provide a more accurate and noninvasive way to assess therapeutic responses, avoiding unneeded toxicity or ineffective treatments.
A UCI-led study reveals that fasting affects circadian clocks in the liver and skeletal muscle, rewiring metabolism for improved health. Fasting-driven cellular responses prime the genome for new gene expression patterns, suggesting optimal timed fasting could benefit health.
Researchers have identified a unique actin filament nanoscaffold triggered by molecular signals, which expands our understanding of cell movement. The discovery could yield insights into cancer metastasis, wound healing, and other cell-motility-related conditions.
Recent updates in stroke research focus on understanding cellular death mechanisms triggered by neuronal damage and astrocyte loss. Novel treatment alternatives, including restoration of blood flow control, are discussed as potential alternatives to existing therapies.
Researchers found that interleukin-6 is involved in the development of severe asthma, a subtype associated with neutrophil accumulation. Blocking this molecule may lead to new treatments for asthma.
Researchers at the University of Zurich identified a molecule that plays a key role in graft-versus-host responses, which can be fatal for leukemia patients. Blocking this molecule, GM-CSF, could significantly improve stem-cell transplant outcomes.
Salk scientists discovered that melanopsin cells, responsible for regulating consciousness and sleep, respond to prolonged illumination, but can become desensitized. The study may lead to new treatments for migraines, insomnia, jet lag and circadian rhythm disorders.