Articles tagged with Immune Response
A study has found that a mutation in the NOD2 gene may predispose individuals to Crohn's disease by impairing the immune system's ability to recognize and fight off mycobacteria. The research, published in the Journal of Experimental Medicine, highlights the potential for new therapeutic approaches to combat the disease.
Nearly half of the world's population is at risk of malarial infection, causing over 250 million clinical episodes and one million deaths each year. Researchers identified key challenges in developing a protective malaria vaccine, including identifying which proteins provoke a strong immune response.
Researchers have identified a mechanism by which influenza virus makes individuals more susceptible to secondary bacterial pneumonia. Type I IFNs, key mediators of the antiviral immune response, impair the ability to mount an adequate immune response to subsequent pneumonia-causing bacterial infection.
Researchers at the University of Maryland School of Medicine found that Abatacept reduces severe illness and death in mice exposed to Influenza A virus by tempering the immune response. The treatment approach also improves survival rates for mice infected with a lethal dose of influenza virus.
A novel vaccine strategy using VLPs could provide a more robust immune response and shorter development time compared to traditional vaccines. Researchers have already made VLP vaccines that show complete protection against H5N1 and 1918 influenza viruses.
Lice parasites have been found to modulate the immune system of wild wood mice, suggesting a potential link between parasite exposure and reduced autoimmune disease risk. This research implies that modern humans, lacking natural parasite exposure, may develop less regulated immune systems leading to increased disease susceptibility.
Researchers identify previously unrecognized defense mechanisms that improve treatment of viral skin infections. They found that immune cells in the skin, such as dendritic cells and memory T cells, can trigger a strong response to infections, providing efficient and long-lasting immunity.
A new study from the University of Missouri found that newborns' immune systems require time to mature before responding effectively to vaccines. This slow maturation can lead to an overabundance of Th-2 cells, which can cause allergic reactions and make infants more susceptible to infections.
Scientists have identified a new role for lung epithelial cells in detecting airborne antigens and triggering allergic responses. The discovery suggests that targeting Toll-like receptors may lead to novel treatments for asthma and other allergic diseases.
Research found that parasitic infection reduces immunity to future cholera infections and compromises vaccine effectiveness. Helminth-infected patients had lower IgA antibodies, indicating a weakened immune system.
Studies reveal that PICK1 protein plays a crucial role in acrosome formation, and its deficiency leads to low sperm count and abnormal sperm movement in male mice. This discovery may shed new light on the human disorder of globozoospermia, which affects male fertility.
Scientists engineer a covalent immunization approach that provides immediate protection against diseases, overcoming traditional vaccine drawbacks such as lag time. The method uses adapter molecules to trigger universal immune reactions, potentially revolutionizing disease prevention.
Researchers discovered that mosquitoes use RNA interference to combat dengue virus, allowing the virus to multiply and be transmitted to humans. Genetic manipulation of this response could help stop dengue virus transmission by Aedes aegypti.
Researchers discovered clofazimine's potential to treat autoimmune diseases by inhibiting the Kv1.3 potassium channel. The findings suggest a new approach to treating conditions like multiple sclerosis, psoriasis, and type 1 diabetes.
Researchers at the University of Pennsylvania School of Veterinary Medicine have imaged the body's immune response to a parasitic infection in the brain for the first time. The findings provide unexpected insights into how immune cells are regulated in the brain and have implications for treating inflammatory conditions.
Researchers at UCSF have identified a woman's immune system anomaly that may lead to breakthrough therapies for autoimmune diseases like rheumatoid arthritis and colitis. The discovery of antibodies blocking T-cell movement could result in more targeted treatments with lower risks of infections or tumors.
Researchers study how Toxoplasma gondii infects mice and finds that infected cells fuse with endoplasmic reticulum to present parasitic peptides. This process, called cross-presentation, helps the parasite evade immune detection.
Researchers found that CD4+ T cells play a significant role in Parkinson's disease progression. Infiltration of these immune cells in the brain contributes to neurodegeneration. Targeting the immune system might offer a new therapeutic approach.
Researchers successfully blocked PD-1, boosting anti-viral killer cells and antibody response, reducing plasma viral load and prolonging survival of SIV-infected rhesus macaque monkeys. The therapy showed improved function of T cells in the blood and gut, increasing antibody production against SIV.
Researchers identified a key role for dendritic cells in responding to Leishmania parasites, which cause illness in developing nations and have been detected in US soldiers. The study provides insights into the early stages of the immune response and has implications for vaccine development.
Researchers at Virginia Tech have discovered how mosquitoes control the pathogenicity of viruses, using short-interfering RNAs to modulate disease. By altering the virus genome, the team found a way to upset the balance, potentially targeting mosquito-borne diseases.
Researchers have developed a technique using soft lithography to create 'snapshots' of immune cell populations, offering insights into antibody diversity and potential for vaccine development. This innovation could lead to more effective diagnostic tools and personalized treatments.
Researchers found a positive correlation between learning performance and immune response in bumblebees, contradicting previous predictions. Bumblebee colonies with strong learning abilities also showed improved resistance to bacterial infection.
A study found that a higher dose of flu vaccine boosts the immune response in people aged 65 and older, increasing antibody levels by 30-80% compared to the standard dose. This could lead to better protection against the flu for those most at risk.
A Salmonella infection has been used to study the immune system of Drosophila melanogaster flies, revealing a key role for growth factor Decapentaplegic (Dpp) in regulating immune responses. Dpp mutant flies have impaired immune cell production and are unable to fight off pathogens.
A new cancer vaccine has elicited an immune response in most patients with bowel, kidney and prostate cancer, suggesting potential clinical benefit. The vaccine, TroVax, is well-tolerated and may provide survival benefits to patients.
A new study by researchers at the University of Cincinnati shows that eliminating steroid therapy as early as seven days following a transplant surgery maintains kidney function. The study found reduction in steroid-related complications, even when prednisone was given in very low doses.
Researchers have developed a novel delivery system that significantly enhances vaccine effectiveness while tailoring it based on the desired type of immune response. Using RNA molecules, their system achieved immune responses five to 50 times stronger than traditional vaccines in mice studies.
A new report published in Disease Models & Mechanisms reveals that tumors trigger the same immune response as wounds, with hemocytes replicating and adhering to tumor surfaces to limit growth. The study identifies key pathways in the fly's immune response to tumor growth and tissue disruption, shared with humans.
Researchers found that chronic stress alters the genetic immune response by changing the pattern of gene expression in monocytes, a type of white blood cell involved in the body's immune response. This altered response can lead to increased inflammation and contribute to the risk for illnesses like depression, heart disease, and diabetes.
Researchers found that human embryonic stem cells can trigger an immune response in mice, which could limit their effectiveness for human therapy. The immune system recognizes and rejects the cells, but common antirejection medications may help mitigate this response.
A newly discovered gene variant in TNFAIP3 may cause the immune system to continue attacking healthy tissues and organs, leading to damage. This discovery adds to a growing list of genes associated with lupus and holds promise for diagnosis and treatment.
Researchers at Massachusetts General Hospital found that HIV can escape the immune system by exchanging genetic information with other strains, leading to more potent strains. This mechanism, known as superinfection, can cause rapid increases in viral levels and poses a challenge for vaccine design.
Researchers found a correlation between the intensity of a patient's immune response and clinical outcomes in brain cancer patients. The study showed that stronger immune responses were associated with longer survival times and improved treatment outcomes.
A new study from the University of Leicester found that bumble-bees' impaired immune response leads to reduced learning abilities and altered behavior when infected. This research has important implications for understanding bee colony survival and the decline of wild bumble-bee species.
Researchers at University of Pittsburgh's Department of Mathematics will create computer models based on differential equations to predict patient responses to treatment. The models aim to improve therapies for neurological conditions like Parkinson's disease and deep brain stimulation.
Researchers have developed a mathematical model that predicts optimal timing for a cancer vaccine in CML patients based on their immune response, which may lead to a cure. The model suggests boosting the immune system at a specific time when it starts weakening can provide a strong stimulation to combat leukemia cells.
Researchers have identified HLA-G dimer as a powerful immune molecule that can help prevent organ rejection. This molecule works by down-regulating the immune response and has potential applications in treating autoimmune diseases and cancer.
Researchers at Johns Hopkins Medicine tested a high-dose regimen of cyclophosphamide on nine MS patients, showing a 40% reduction in disability scores and an 87% improvement in physical and mental function. The 'HiCy' treatment appears to clear out the immune system and allow nerve cells to repair themselves.
A protein sequence associated with Huntington's disease has been identified as a potential life-saving vaccine component. The polyQ-based adjuvant efficiently enhances both branches of the immune response to a poor model antigen, with no apparent toxicity in mice.
Researchers at UCLA's Jonsson Comprehensive Cancer Center have created a new probe that allows for the modeling and measurement of the immune system in action. The probe enables scientists to monitor the immune response at the whole body level in 3D, facilitating faster diagnosis and treatment evaluation of immunological disorders.
A unique HIV vaccine formulation has been shown to induce strong and balanced immune responses in healthy human volunteers. The combination approach used in the study achieved high titer antibodies that recognized a diverse group of HIV envelope proteins, providing promising results for future efforts to optimize HIV vaccine formulations.
Researchers found that abnormal 'editing' of gene messages in a type of white blood cell may be behind the development of lupus. This could lead to earlier diagnosis and monitoring of patients' responses to therapy.
Researchers from Tengion, Inc., present a new study suggesting that growing a replacement organ using the patient's own cells could be an effective and safe treatment option. The technique involves seeding bladder progenitor cells on a biodegradable scaffold, which can then be implanted into the patient.
Researchers at Duke University Medical Center found that chemotherapy can boost the immune system's response to cancer vaccines, potentially improving their effectiveness. In a phase I study, patients who received multiple doses of chemotherapy along with a vaccine showed enhanced immune responses.
Researchers discovered that viral agents can kick-start the body's immune response in the moist nasal lining, leading to inflammation and symptoms like sneezing and congestion. This understanding may lead to new therapies to block the triggering reactions for sinusitis and asthma.
Cure Lab, Inc. has developed a new technology that combines two forms of vaccine antigens: one easily processed by the proteosome and another resistant to it. This combination elicits a stronger immune response than using either form alone, promising improved vaccine efficiency.
A UCLA study found that broccoli's sulforaphane can switch on antioxidant genes and enzymes in immune cells, combating oxidative tissue damage. This could lead to a decline in age-related decline in immune function.
New study reveals that timing of IL-7 treatment is crucial for enhancing antiviral immunity in mice. Administering IL-7 during the immune response contraction phase improves viral control and boosts vaccine-induced CD8+ T cell memory.
A recent article in Developmental and Comparative Immunology reveals that plants possess elements of specificity and responsiveness to disease-causing agents, similar to animal immunity. The study suggests that the plant immune surveillance genes diversify at a rate stimulated by pathogen presence, shedding new light on plant immunity.
A study by McGill University researchers found that certain immunoregulatory T-cells lose potency with age, leading to the onset of autoimmune diabetes. This discovery provides insight into the mechanism of type 1 diabetes and may lead to new immune system-based therapies.
The foundation has committed over $200 million to support cancer researchers since its inception. Seventeen new Damon Runyon Fellows were named for their innovative projects in basic and translational cancer research.
Scientists found that inactivating Toll-like receptor 4 (TLR4) helps prevent necrotizing enterocolitis (NEC), a leading cause of death in premature babies. Blocking TLR4 signals could potentially treat NEC by regulating the intestine's immune response.
Mice subjected to psychological stress are more susceptible to skin infections due to decreased expression of antimicrobial peptides by the epidermis. Inhibiting glucocorticoids may improve immune function in stressed individuals.
A new study by researchers links low temperatures and relative humidities to the rapid spread of influenza, validating the seasonal flu theory. The study found that low relative humidities facilitate viral transmission, with opposite effects at higher humidity levels.
A new study by David Heckerman and colleagues developed a statistical framework to model HLA-dependent T cell response data. The approach identified 12 correct predictions out of 16, providing significant implications for understanding and developing an HIV vaccine.
Research suggests the appendix serves as a reservoir for beneficial bacteria, protecting them from harm and allowing them to repopulate the gut after diarrhea. This discovery challenges the long-held view of the appendix's uselessness.
A regulatory protein called CTLA-4 inhibits the action of HIV-specific CD4 T cells, leading to immune system breakdown in AIDS patients. Elevated CTLA-4 expression correlates with disease progression and reduced CD4 counts, suggesting a potential treatment target.
Research suggests that ghrelin improves thymic mass and T cell output with increased diversity of the TCR repertoire in mice, highlighting its potential as a therapeutic approach to boost immune function in elderly or immunocompromised individuals.
Researchers at the University of North Carolina and Max Planck Institute discovered that an autoimmune response can create a barrier to producing viable offspring in plants. This phenomenon, known as hybrid necrosis, can be triggered by specific gene combinations, suggesting a potential early step in the development of new species.