Articles tagged with Immune System
A Mayo Clinic study found that people with monoclonal B-cell lymphocytosis (MBL) have a 92% elevated risk of developing melanoma. MBL is a precursor to chronic lymphocytic leukemia and also increases the risk of cancers originating in the lymphatic system and serious infections.
A study by researchers from Brazil and Germany found that a surface protein on Aspergillus fumigatus spores suppresses the release of pro-inflammatory substances by immune cells, making it easier for the fungus to infect the body. The enzyme glycosylasparaginase plays a crucial role in this process.
Researchers found a subset of macrophage cells close to breast cancer cells, which may provide a new biological target for immunotherapies. This discovery could lead to the development of biologic therapies to change the organization of neighborhoods around cancer cells.
A new automated scoring system using deep learning and pyramid sampling analyzes morphological features at various spatial scales to enhance the accuracy of HER2 assessment. The system achieved a classification accuracy of 84.70% in blind testing, comparable to experienced pathologists.
Researchers have developed a novel nanoparticle drug-delivery system to activate an immune pathway in combination with tumor-targeting agents, showing promising results in treating pancreatic cancer. Eight out of nine mice tested experienced tumor improvements, including two complete responses.
Researchers have developed a novel, more selective inhibitor of the human immunoproteasome using a bacterially derived natural product. The new compound targets autoimmune diseases without disrupting other cellular mechanisms.
Two proteins, viperins and argonautes, play important roles in human immunity, originating from Asgard archaea. These defense systems have been passed down for billions of years, providing a crucial line of defense against viruses.
A new study by Ohio State University Wexner Medical Center found that probiotics can improve the immune system and behavior of both mothers and their offspring during pregnancy. Probiotics may also help counteract negative effects of prenatal stress, such as changes in brain inflammation and amino acid metabolism.
Researchers at UC Santa Barbara discovered that macrophages can be programmed to respond to light, triggering an increase in their appetite and improving the effectiveness of cancer immunotherapies. The findings offer a new way to enhance trained immunity, a type of memory exhibited in the innate immune system.
Researchers developed a drug that enhances killer T cells' fighting power while reducing the toxicity of unmodified IL-2 treatments, overcoming inhibitory Tr1 cells and increasing immunotherapy's effectiveness. The study aims to personalize cancer immunotherapy for more patients.
A Spanish research study has described the composition of the immune system in blood samples from patients with multiple myeloma and found that altered immune cells influence vaccine efficacy. The study reveals a more severe immune suppression in patients with multiple myeloma compared to those with other tumors.
Researchers at the Max Planck Institute discovered that mast cells can trap and recycle neutrophils, which are normally frontline defenders against infections. This unexpected interaction reveals a new layer to our understanding of allergic reactions and inflammation.
Scientists found islands of highly potent immune cells in the bone marrow close to glioblastoma tumors, which play a central role in defending against cancer. This discovery may lead to innovative therapies and could improve patients' chances of survival.
The risk of developing type 1 diabetes (T1D) decreases in girls after age 10, while the risk in boys remains stable. Males with a single autoantibody have a significantly higher risk of T1D than their female counterparts.
A new study reveals that about two percent of the population develop autoantibodies against type 1 interferons, making them more susceptible to severe viral infections. The autoantibodies remain detectable in the blood for life and are associated with a compromised type 1 interferon system.
A German team has developed a photostimulated antigen release system that can be used to precisely study antigen flux in living cells. This method allows for the analysis of complex antigen processing and transport processes in real-time, providing new insights into immune surveillance.
A study comprehensively evaluated occurrence patterns of immune-related adverse events, including those affecting single organs and multiple organs. Researchers found that most events tend to co-occur and identified seven patient clusters with different development patterns, which were associated with improved or worsened survival outc...
A new study found that low energy availability among female athletes impairs performance by up to 18% in short-term tests and increases systemic stress, compromising immune function. Athletes who restrict their food intake experience muscle loss and decreased physical performance.
Researchers identified two distinct T-cell signatures in children with newly diagnosed type 1 diabetes and those at risk of developing the disease. These signatures may serve as potential biomarkers and targets for preventive immunotherapy treatments.
Researchers have discovered how Haemophilus influenzae turns off the body's immune responses to persist in respiratory tissues. The bacterium convinces the immune system there is no threat, inducing a state of tolerance, and can worsen symptoms in vulnerable groups like cystic fibrosis patients and asthma sufferers.
Researchers found that the frequency of activated TREG cells remained elevated during treatment and continued to be high even after the virus was eliminated. Inflammatory features, such as increased TNF signaling, were sustained in TREG cells, indicating long-term immune system changes induced by the chronic infection.
Researchers have found that blocking Interleukin-6 (IL-6) from binding to neurons in the area postrema prevents cachexia in mice. This breakthrough discovery could lead to the development of new drugs targeting these neurons, potentially treating cancer cachexia and improving patients' quality of life.
Researchers at Trinity College Dublin have made a breakthrough in understanding how to improve vaccine responses against the potentially deadly MRSA bacterium. By targeting the immune-suppressive molecule IL-10, they improved the ability of vaccines to protect against infection and reduce bacterial clearance.
Researchers have discovered several rare types of helper T cells associated with immune disorders such as multiple sclerosis and rheumatoid arthritis. The study found that genetic variants in bidirectional enhancer DNA are linked to specific immune-mediated diseases, including inflammatory bowel disease.
A new Finnish study from University of Turku shows that already a 30-minute exercise can increase the proportion of tumor-killing white blood cells in the bloodstream of breast cancer patients. The amount of several different white blood cell types increased during exercise, with cytotoxic T cells and natural killer cells rising the most.
Scientists have developed a new immunotherapy that can identify and fight cancer cells in patients with Merkel cell carcinoma. The treatment involves stimulating the immune system's T cells against specific elements of the virus involved in cancer formation.
Researchers describe a new concept for an immune response against cancer and aging using senescent cell-derived vaccines. The vaccines aim to stimulate the immune system against cancer cells and slow down or reverse aging-related diseases.
Researchers are exploring inflammation caused by COVID-19 as a trigger for Long Covid, a condition characterized by persistent symptoms like fatigue, brain fog, and shortness of breath. The study aims to identify potential causes and treatments for Long Covid, with findings that could lead to enhanced immune function in patients.
A study of over 10,000 people found that those with fewer butyrate-producing bacteria in their gut were more likely to develop serious infections. The research suggests a strong link between the microbiome and the immune system, opening up new possibilities for preventing serious infections.
A Kobe University study finds that a new treatment for neuromyelitis optica spectrum disorder shifts the balance of immune cells, increasing anti-inflammatory signals. The discovery may enable clinicians to determine treatment effectiveness and move towards personalized medicine for autoimmune diseases.
Researchers at University of Cambridge uncover unified healer army of regulatory T cells that constantly move and repair damaged tissue. This discovery has implications for treating various diseases, including autoimmune disorders and infectious diseases.
A new trial indicates that immunotherapy could successfully treat the most common form of colorectal cancer. The study, published in Nature Medicine, found that botensilimab and balstilimab caused tumours to shrink or remain stable in 61% of patients with microsatellite stable metastatic colorectal cancer.
Researchers discovered that T-cell aging is not limited by organismal age, and healthy T cells can proliferate indefinitely. The epigenetic clock of T cells shows that death is not the end, and these cells do not plateau with age, defying traditional notions of cellular aging.
Researchers at Wyss Institute develop subcutaneous scaffolds to restimulate CAR-T cells, increasing therapeutic efficacy in mice with aggressive blood tumors. The biomaterials increase CAR-T cell numbers and steer differentiation into tumor-killing T cells.
Scientists studied how microgravity impacts human peripheral blood mononuclear cells and identified potential compounds to counter its effects, including the antioxidant quercetin. The findings have implications for immune aging on Earth and provide a resource for developing countermeasures.
Researchers at Northwestern University discovered an attenuated virus that can help eliminate cancer in mice and prevent future tumor development. The therapy works by raising 'red flags' on tumors to alert immune cells to attack them.
A study published in the European Respiratory Journal found that children exposed to weed pollen in urban environments are at higher risk of developing respiratory health problems, including asthma. However, tree canopy can mitigate this effect to some degree.
Researchers investigate Epstein-Barr Virus and Multiple Sclerosis connection, discovering cross-reactivity between viral proteins and brain proteins. The study suggests that differences in immune cell function may explain why some people develop MS after EBV infection.
A team of researchers identified two functionally distinct populations of T cells with different cellular architectures that influence their fate. Cells with nuclear invaginations rapidly proliferate and kill pathogens, while those without undergo a more leisurely activation process. These findings have significant implications for und...
Researchers created an artificial lymph node using hyaluronic acid, which connects with T-cells via a cell surface receptor. The noden acted as a learning hub, stimulating T-cells to recognize and kill cancer cells in mice with melanoma and colon cancers.
A study from Michigan Medicine reveals a connection between neutrophil activation and severe cytokine release syndrome (CRS), a potentially life-threatening reaction to CAR T-Cell therapy. Researchers identified biomarkers of NETosis, a process in which neutrophils create webs that may contribute to CRS.
Researchers at La Jolla Institute for Immunology found that people who experienced breakthrough COVID-19 infections develop T cells better equipped to recognize and target SARS-CoV-2. The study also discovered that B cells produce more diverse antibodies targeting common epitopes between the vaccine and variants.
Researchers at the University of Leeds identified a surge in rare autoimmune cases linked to MDA5 autoimmunity, affecting mainly white men and women. The condition, characterized by skin rashes, pneumonia, and interstitial lung disease, has proven fatal in some cases.
Researchers developed adhesive hydrogel coatings that eliminate fibrosis, a common issue with medical implants. The coatings bind devices to tissue and prevent the immune system from attacking them.
A study by Chiba University researchers reveals that a specific variant of the HLA gene can trigger an endoplasmic reticulum stress response in skin cells when exposed to certain drugs, leading to drug eruptions. This newfound knowledge may form the basis for innovative treatment options.
A research team led by Gloria Choi and Jun Huh will investigate how fever improves autism symptoms in an effort to develop therapies that replicate this effect. They plan to explore the molecular mechanisms behind the 'fever effect' and its potential applications for individuals with autism spectrum disorders.
Researchers found that specific combinations of interferon proteins, including I, II, and III, are associated with various lupus symptoms like skin rashes, kidney inflammation, and joint pain. Elevated levels of these interferons can lead to severe disease presentations.
A plant virus treatment, composed of cowpea mosaic virus nanoparticles, has shown remarkable success in improving survival rates and suppressing the growth of metastatic tumors across various cancer models. The treatment was effective even after surgical removal of tumors, indicating its potential to prevent metastasis.
Researchers created a new model to study the effects of undernutrition on the microbiome, which can help identify specific microbes that impact development. The model mimics early childhood experiences and shows promise in understanding the underlying causes of stunted growth and other harmful effects of undernutrition.
Researchers at UCLA Health Jonsson Comprehensive Cancer Center have found a combination immunotherapy treatment that enhances the immune response for people with malignant gliomas. Adding an immune-boosting agent, poly-ICLC, to a personalized dendritic cell vaccine improves the immune response and activity of T cells in patients.
Researchers developed a new 'proactive vaccinology' approach to build vaccines before disease-causing pathogens emerge. The Quartet Nanocage vaccine trains the immune system to target specific regions of eight coronaviruses, providing broad protection against known and unknown strains.
Researchers found that inflammatory proteins peak at different times of day based on whether new mothers breastfeed or formula-feed their babies. The study's findings suggest a unique immune profile for lactating mothers and highlight the need for further research into postpartum breastfeeding.
Researchers identify critical genes and transport systems in E. coli that enable rapid growth despite sterile urine environment. ABC transporters appear crucial for infection, with inhibitors potentially slowing bacterial growth and complementing antibiotic efforts.
Researchers at Duke University have developed a new vaccine strategy that targets the portion of the flu virus surface with less variability, aiming for universal and long-lasting protection. The experimental vaccine elicits an immune response focused on the stalk region, which remains consistent despite viral mutations.
A new mRNA cancer vaccine has been shown to trigger a vigorous immune response in both human patients and pet dogs with glioblastoma, the most aggressive form of brain cancer. The breakthrough treatment, which uses a personalized approach and novel delivery mechanism, demonstrates promising results in early clinical trials.
A team of researchers has discovered the role a specific protein complex plays in certain forms of immune dysregulation. SHARPIN deficiency is linked to autoinflammation and immunodeficiency, but unexpectedly does not manifest dermatological issues. Treatment with anti-TNF therapies resolves symptoms.
A new study has uncovered the crucial role of immune cell interactions in driving Chikungunya disease. The research found that synergistic interactions between macrophages and CD4 T-cells drive joint pathology during CHIKV infection, providing key insights into potential novel treatment targets.
A study by Mount Sinai researchers has identified several pathophysiological mechanisms underlying perianal fistulae in Crohn’s disease. The findings highlight key transcription factor binding events and epigenetic phenomena that contribute to the higher rates of complications in African American patients. The research provides avenues...
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.
Bacteria like Burkholderia pseudomallei use a unique tactic to spread in the body by residing inside human cells. They employ a nano-sized speargun called type VI secretion system (T6SS) to move from cell to cell without being detected by the immune system.