Articles tagged with Immune Response
A new COVID-19 vaccine has demonstrated safety and a rapid immune response in a phase 1 clinical trial involving 108 healthy adults. The Ad5-nCoV vaccine produced virus-specific antibodies and T cells in 14 days, with the majority of recipients showing either a positive T cell response or had detectable neutralising antibodies against ...
Researchers created a new computational protein design approach called Topobuilder to engineer de novo immunogens with complex epitopes. The approach successfully generated a robust immune response against RSV in mouse and non-human primate models.
Researchers at University of Nottingham have developed biomaterials that can control the body's immune response, potentially reducing implant rejection rates. The new materials use surface shape and chemical composition to influence macrophage attachment and behavior.
Researchers identified a significant fraction of antibodies expressed by B cell plasmablasts circulating after DENV infection, particularly in individuals experiencing their first infection. This finding holds promise for developing new diagnostic tools and a safe, efficacious dengue vaccine.
A new study led by University of Kentucky researcher Sidney Whiteheart aims to understand how platelets function in hemostasis and during immune responses. The research may lead to therapies to regulate platelet activation and lessen the risk of cardiovascular disease in patients with HIV1/AIDS or COVID-19.
Researchers at UC San Diego Health found that olfactory impairment suggests a milder clinical course in COVID-19. Patients who displayed no or mild symptoms were less likely to require hospitalization.
Researchers from TUM have identified a substance that worm larvae use to modulate the host's immune response, activating anti-inflammatory pathways and reducing inflammatory mediators. This active molecule shows promise as a new treatment for chronic airway inflammation in allergic asthma.
Scientists at Cincinnati Children's Hospital Medical Center report development of a potential universal vaccine for Ebola viruses. The new vaccine uses glycoproteins from two Ebola virus species and has shown promise in neutralizing all four pathogenic species, generating cross-reactive responses against multiple viruses.
Scientists at Baylor College of Medicine have discovered the unique structure and function of rotavirus VP3, a protein that integrates five enzymatic activities for capping mRNA. This breakthrough enables the design of antiviral drugs to counter rotavirus infection, which causes diarrhea in children worldwide.
Research at Shinshu University found that green tea consumption increases Flavonifractor plautii bacteria in the gut, leading to a suppressed Th2 immune response to food allergies. This study suggests that drinking green tea may be a potential anti-allergy probiotic.
Researchers created tiny biohybrid swimmers that can personalize drug delivery to treat tumors. The biohybrid swimmers, powered by genetically engineered E. coli MG1655 and red blood cell nanoerythrosomes, demonstrated a reduced immune response due to their nanoscale size.
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 identified peptides that trigger immune responses in multiple plant species, including citrus, potentially preventing or reducing yield loss from citrus greening. This discovery offers a new hope for the devastated citrus industry, where no resistant varieties are available and limited disease control measures exist.
Researchers at the University of Melbourne mapped immune responses from a patient with mild-to-moderate COVID-19 symptoms, showing the body's ability to recover from the infection. The study found that broad immune responses were associated with clinical recovery, similar to what is seen in seasonal influenza infections.
Researchers discovered that jawless and jawed vertebrates share similar immune receptor gene structures despite independent evolution. The findings provide insight into the evolution of the adaptive immune system and its importance for human health.
The study reveals that jawless and jawed vertebrates share similar adaptive immune systems, despite independent evolution for over 500 million years. The researchers used CRISPR/Cas9 to disable a gene in lampreys, showing that they rely on a shared tool-kit to create antibodies.
Researchers discovered that blood stem cells can drive a rapid and efficient immune response if previously exposed to LPS, mimicking an infection. The cells store immune response circuits in their DNA using C/EBP? factor, enabling a more efficient response upon subsequent infections.
A team of researchers has identified a membrane-associated protein crucial for human T-cell development and immune function. The study, published in Nature Communications, sheds light on the molecular mechanisms underlying rare genetic diseases that cause severe immune deficiencies.
Researchers discovered that immune cells count their neighbors before activating to avoid overreactions. This new understanding could lead to improved cancer immunotherapies and treatments for autoimmune diseases.
Researchers have developed a novel technique to isolate individual gut cells from mice infected with intestinal parasites, enabling the study of the immune response to these infections. The technique may help scientists understand how adult parasites evade the immune system and develop ways to boost the immune response.
Researchers discovered that shortly after a stroke, macrophages from the blood attack dead and adjacent healthy brain tissue. This process was hindered by inactivating the Cxcr4 gene, which acts like an antenna for inflammatory processes in the brain.
A team at Columbia University's Mailman School of Public Health has developed a new method that accurately predicts human disease outcomes based on gene expression in individuals infected with Ebola. The model uses machine learning and was tested on a data set collected from Ebola patients in western Africa, confirming its accuracy.
Researchers have discovered high levels of PFAS chemicals in the blood of Cape Fear River striped bass, which are associated with altered immune and liver functions. The study found elevated concentrations of PFOS and Nafion byproduct 2, particularly in smaller or younger fish, highlighting the unique properties of these chemicals.
A study found that childhood vaccine responses are shaped by geography, age, and anemia status. Children with anemia showed weaker immune responses to malaria vaccines in Tanzania and Mozambique.
A new study found that immune system composition changes significantly during early childhood, with anaemia potentially reducing vaccine responses in low-income countries. The research, published in Science Translational Medicine, analyzed blood samples from children in Mozambique and Tanzania.
Researchers charted immune system development in sub-Saharan African children to improve vaccine efficacy. Their findings suggest that a child's age, location, and health status influence their immune response to vaccines.
A vaccine clinical trial for pregnant women with malaria has shown promising results, demonstrating safety and an appropriate immune response. The PRIMVAC vaccine was found to be well-tolerated and induced antibodies capable of recognizing the Plasmodium falciparum parasite.
New research shows that feeding bluebirds can significantly impact parasitic nest flies and improve nestling survival. The study found that supplementing birds with food reduces the parasite load and improves antibody levels, which help kill the parasites. The timing of feeding is also crucial, with early feeding benefiting young birds...
Researchers at Massachusetts General Hospital developed mathematical models to predict how tumors may respond to immunotherapy and how adding other anti-cancer drugs could lead to improved treatment. The models suggest that normalization of the tumor microenvironment, including blood supply, could improve treatment efficacy.
A severely infected patient revealed a rare genetic variation in immune deficiency, linked to CMV control. Researchers sequenced the man's genes and found a mutation in NOS2, a critical component of macrophages that kill microbes.
A new method to produce cheaper, longer-lasting vaccines has been developed using a protein called polyhedrin. Researchers found that PH(1-110) particles stored as dry powder can still generate antibodies after up to twelve months of storage.
Researchers found BPA exposure triggers an immune response that passes down through generations, leading to increased risk of allergic asthma. The study suggests that even after removal from the environment, descendants may still inherit changes in DNA expression that cause aberrant immune system activation.
Researchers found that B-cell markers were associated with improved overall survival in patients with advanced melanoma and soft-tissue sarcomas. B cells located within specialized immune-cell clusters (TLS) were predictive of response to checkpoint blockade, suggesting a dynamic interaction between immune components.
Scientists from the German Cancer Research Center have identified a receptor on murine immune cells that activates a protective mechanism preventing unwanted immune responses against the body's own tissues. Dectin-1 binds to annexins on dying cells, suppressing the immune response and preventing autoimmune reactions.
A brief disruption to a molecular pathway in mice before birth compromises adult immunity to rotavirus, preventing antibody responses and interfering with gut cells that support antibody production.
A host sensor called AhR helps the immune system respond to bacterial infections by detecting and adapting to quorum sensing signals. This allows for tailored defense mechanisms against highly resistant pathogens like Pseudomonas aeruginosa.
A recent study found that probiotics and prebiotics have distinct effects on the immune systems of male and female piglets, contradicting previous assumptions. This research highlights the importance of considering sex in nutritional trials and may lead to personalized treatment approaches for infants.
KAUST scientists have identified MAP4K4 as a key player in plant immunity, essential for proper responses to environmental pathogens. The discovery reveals targets in a molecular pathway that could be manipulated by crop breeders to make plants more resistant.
A newly developed experimental vaccine has demonstrated over 80% effectiveness in protecting mice from succumbing to Staphylococcus aureus infection. The vaccine targets specific proteins found on the bacteria and has shown promise in preventing biofilm formation, a major cause of hospital-acquired infections.
Researchers have developed a new way to measure white blood cell function, providing more accurate prognostic information for patients with sepsis. The technology assesses activation state and function of white blood cells from small blood samples, allowing for earlier diagnosis and treatment.
Researchers at Georgia State University have identified the critical protein Z-DNA binding protein 1 (ZBP1), which plays a significant role in triggering an immune response to viral infections. The study found that ZBP1 is essential for restricting West Nile and Zika virus replication, preventing severe disease outcomes.
The study developed a new method combining mass spectrometry technology and machine learning to identify HLA-II binding motifs, leading to improved prediction of immunogenic peptides. This advancement will refine personalized immunotherapy for cancer treatment.
Researchers at the Weizmann Institute of Science and Germany's University of Cologne have identified two antibodies produced by vaccinated individuals that provide long-term immunity against Ebola. These antibodies, which target specific sites on the viral glycoprotein, demonstrate effective protection against the virus.
Scientists at the University of Dundee have mapped how T lymphocytes control expression of over 9,000 proteins in response to infections and tumours. The study reveals critical discoveries on how immune-suppressive drugs work and how oxygen and nutrient environments shape immune responses.
The US FDA has approved a new smallpox vaccine called JYNNEOS, which is non-replicating and can be used to protect against both smallpox and monkeypox diseases. The vaccine developed by Bavarian Nordic was shown to have a superior immune response compared to the existing ACAM2000 vaccine.
The NIH has awarded contracts to establish three new centers for immunology research to accelerate progress in TB vaccine development. The program aims to develop a comprehensive understanding of the immune responses required to prevent TB infection and disease.
A recent study by Nicolas Cermakian and Nathalie Labrecque found that the biological clock influences immune response efficacy in CD8 T cells. The study discovered that the strength of the immune response varied according to the time of day, with mice showing a stronger response to vaccination at certain times.
A new study on sheep aging found that declining immune function accelerates parasite infections, leading to early mortality. The research, which tracked over 800 individual animals, discovered a link between antibody availability and mortality risk.
The RV144 vaccine has shown promising results with a new study indicating it may provide protection against multiple strains of HIV. Researchers discovered that the vaccine elicited stronger immune responses, particularly in men, and was well-tolerated, suggesting potential long-term efficacy.
A study found a germline mutation in the CD137 gene to be associated with childhood lymphoma, highlighting its key role in immune surveillance against EBV infection. The research aims to develop targeted therapeutics to stop this disease process.
The study reveals that ectosomes, tiny vesicles containing key immune messages, can be intercepted and deciphered using super resolution microscopy. This breakthrough understanding of cellular communication has significant implications for developing therapies that shape the immune response to specific diseases.
A study by Emory Vaccine Center and CDC found immunity against mumps virus insufficient in a fraction of college-aged people who received MMR as children. The results highlight the need for better understanding of immune response to mumps and vaccines.
A team of biologists has shed new light on a crucial aspect of the plant immune response, revealing how plant resistance proteins trigger localized cell death. By understanding this mechanism, scientists may develop strategies for engineering disease-resistant crops.
A new chlamydia vaccine has shown promising early signs of effectiveness in a phase 1 clinical trial, provoking an immune response in all participants. The vaccine, CTH522, demonstrated improved performance with added liposomes, producing higher antibody levels and a more consistent cell-mediated immune response.
A new study suggests that nitazoxanide, an FDA-approved anti-parasitic drug, could potentially treat Ebola by enhancing the immune system's ability to detect the virus. The drug inhibited Ebola replication and worked by broadly amplifying the interferon pathway and cellular viral sensors.
A PSU biologist is investigating the link between a Western diet high in fat and sugar and its effects on the immune system, with a focus on chronic inflammation and sepsis severity. The researcher aims to identify molecular mechanisms behind this relationship and explore potential dietary interventions.
A study found that women's immune response to the flu vaccine is stronger than men's, but declines with age, especially in women. Researchers discovered that estrogen levels boost female immunity, while testosterone has a weaker effect on male responses.
A new study published in The Plant Cell found that plant immune systems vary between species, contradicting previous assumptions based on Arabidopsis thaliana research. Researchers used CRISPR/Cas9 genome editing techniques to investigate the tobacco plant Nicotiana benthamiana's immune response.
The approach demonstrated in mice enhances healing by reprogramming aggressive immune cells to work for the body, reducing inflammation and promoting regeneration. This technology could lead to new therapeutic strategies for patients with spinal cord injury and inflammatory diseases.
A recent study published in Proceedings of the National Academy of Sciences shows that mosquitoes employ a multi-stage immune response to combat malaria parasites, involving a complement-like pathway and phenoloxidases. This understanding could lead to opportunities to eliminate malaria parasites in the mosquito, reducing human cases.