Articles tagged with Immune System
A Memorial Sloan Kettering study is the first to link gut microbiota to changes in the human immune system. The research used over 10 years of data from more than 2,000 patients undergoing blood stem cell transplants, revealing a unique relationship between microbiota and immune cell concentrations.
Researchers at Aarhus University have discovered that a part of the CRISPR-Cas system originated from toxin genes in bacteria and archaea, providing new insights into its evolutionary process. The study reveals an ongoing battle between microorganisms and viruses, with the discovery of anti-CRISPR proteins blocking the immune system.
Researchers find that Staphylococcus aureus thrives in glucose-rich diabetic conditions, triggering virulent features and unchecked infection. Understanding this mechanism could lead to treatments targeting the bacteria's glucose hunger.
A study published in Clinical and Translational Immunology found that individuals with severe COVID-19 responses exhibit increased levels of interleukin 10 (IL-10), a suppressor of cell inflammation. This discovery could provide a warning light for disease progression, but larger-scale studies are needed to confirm the findings.
Researchers have discovered a key enzyme SphK2 that suppresses the immune system's response to viral infections. The study found that inhibiting this enzyme can clear persistent viral infections and treat some types of cancer by promoting activation of the immune system.
Researchers discovered that the gut's local immune system creates antibodies tailored to specific microbiota, challenging the long-held assumption of a non-specific approach. This finding has significant implications for understanding the relationship between the immune system and the composition of our microbiomes.
Research suggests ancient parasites have co-opted mammalian hosts for evolutionary gain, influencing cognition, reproduction, immune response. Endogenous retroviruses also play a key role in placental development and the interferon response.
Researchers studied COVID-19 patients' immune systems, discovering potent biomarkers and patterns in T-cell and B-cell receptor proteins. The study aims to develop treatments inspired by the immune system, with potential clinical applications including prognostic tests and antibody therapies.
Severe COVID-19 cases linked to hyperactivated T cells in lungs, suggesting brake mechanism failure. Protein Foxp3 inhibition may lead to new treatment options.
A new study describes a vaccine that triggers an immune response against an influenza protein segment rarely mutated by the virus, raising the possibility of effective protection against seasonal and pandemic strains. The vaccine uses nanoparticles coated with flu proteins to train the immune system to create desired antibodies.
Researchers found that feeding C-section newborns their mother's feces in breast milk builds a healthier gut microbiome, similar to those born vaginally. The babies' immune systems mature rapidly after receiving the fecal microbiota transplant, suggesting a potential reduction in asthma and allergy risk.
A study by Karolinska Institutet researchers found that MAIT cell activation is strongly linked to severe COVID-19 disease. The number of MAIT cells in the blood declines sharply in patients with moderate or severe COVID-19, while pro-inflammatory MAIT cells accumulate in the airways.
Dr. Leszek Ignatowicz is studying the impact of intestinal microbiota on immunosenescence, a condition that causes the immune system to decline with age. His research aims to develop new strategies to control gut inflammation and enhance immune function in older individuals.
Researchers have discovered a signal molecule called Interleukin-32 that can make tumors attackable again, improving the efficacy of immune checkpoint inhibitors. This combination treatment shows promise in animal models and may lead to improved life expectancy for melanoma patients with higher IL-32 activity.
Researchers develop a novel approach to detect and defend against hardware Trojans by adapting human immune system principles. The proposed mechanism uses an irregular network topology and machine learning-based anomaly detection to identify malicious attacks.
A new study suggests that gamma interferons, a type of immune cell, may help prevent depression by preserving mental health. Researchers found that healthy individuals have similar immune cells to those with multiple sclerosis, but without the damaging inflammatory response.
T cells play a crucial role in immune response and cancer treatment. Researchers have identified key factors influencing T cell development, which can impact the body's ability to control infections or tumor growth.
Researchers have developed a method to genetically edit out proteins on human pluripotent stem cells that trigger immune rejection. This approach could generate universally compatible 'off-the-shelf' cell grafts without the need for immune suppression, offering a promising solution for regenerative medicine.
A new UCLA study identifies two key drivers of the immune system's attack on cancer cells: T cell infiltration and interferon-gamma signaling. The research found that blocking immune checkpoints amplifies interferon-gamma signaling, leading to enhanced antitumor immune responses.
Researchers at CSHL and Stanford University found a direct connection between stress-sensitive neurons and insomnia-inducing neurons in mice. Stimulating this connection enabled mice to sleep peacefully, while disrupting it caused insomnia. The same connection also affects the immune system, weakening its defenses against threats.
A study by Charité - Universitätsmedizin Berlin reveals that the immune system is less effective at fighting COVID-19 in older people and those with comorbidities. The researchers found a link between T-helper cell function and risk factors, suggesting a potential new treatment target.
A new study finds that obesity can lead to an overactive immune response to COVID-19, impairing the body's ability to fight the virus. The review highlights the importance of understanding how obesity interacts with new COVID-19 treatments and vaccines.
Researchers at the University of Calgary have discovered a way to record real-time images of immune cells inside the lungs, revealing that these 'cleaners' become paralyzed during infections. This new imaging technique has provided crucial insights into the immune system's response to deadly bacteria and viruses like flu and COVID-19.
A new study by Dartmouth Engineering shows promise for an engineered lysin-based antibacterial agent that may enable safe, repeated dosing to treat life-threatening infections caused by MRSA and other types of S. aureus.
Researchers at Georgia Institute of Technology developed a new microgel drug delivery method to improve pancreatic islet transplant success. The method uses an engineered biomaterial to deliver an immune-suppressing protein, reducing dosage and side effects.
Researchers have created an atomic structure of the peptide-loading complex, a biological nanomachine that loads antigens onto MHC molecules. This allows for detailed molecular dynamics simulations to study its dynamics and mechanism, enabling targeted interventions in immune processes.
Researchers discovered new types of mosquito immune cells and molecular pathways implicated in controlling the malaria parasite. A rare cell type called a Megacyte was found to have high levels of a key molecule needed for immune priming, which could limit malaria transmission.
Researchers at West Virginia University discovered that blood substitution therapy can rescue the brains of mice from ischemic damage and improve outcomes. The study found that replacing 20% of the blood reduces damage to the brain, and the technique may be administered beyond the current three-hour window for stroke treatment.
Researchers discovered that when the foreign antigen is more flexible, the germinal centre can employ a greater number of evolution strategies to make antibodies that bind foreign but not self-molecules. The study provides new insights for vaccine design and may help address the major roadblock in generating effective HIV vaccines.
Researchers discovered that a rare COVID-19 related illness in children, known as PIMS-TS, causes severe inflammation and alters the immune system. The study found increased levels of cytokines and reduced white blood cells in affected children, but these changes gradually returned to normal after recovery.
A study found that younger and female patients accumulate more cancer-causing genetic mutations, making them less visible to the immune system. This selective pressure leads to poorer response rates to immunotherapy.
Researchers at NTNU have filmed the process of tuberculosis infection in a cell, revealing how the bacterium evades the body's immune system. The study shows how TB bacteria hide inside macrophages and trigger an explosive immune response to spread further.
Researchers from the University of Otago have discovered that viruses can use a 'decoy' strategy to evade the immune system. By acquiring a membrane inside the nucleus of infected cells, these viruses can travel through different environments and avoid detection by the immune system.
A study published in Immunity identified five humoral immune response markers that can correctly classify convalescent COVID-19 patients and those who did not survive the disease. These markers, including IgM and IgA1 responses to S protein and N protein, were able to predict patient outcomes more accurately than demographic factors.
The study found that immune cells are produced in large quantities but their function is defective, leading to an ineffective immune response against the virus. In severe cases, immature cells with inhibitory effects on the immune response prevail.
Researchers have developed a method to investigate how cancer cells evade the immune system, revealing that some genes can be downregulated over time to avoid detection. The study suggests that targeting these genes could lead to more effective immune therapies.
Researchers found that people with age-related macular degeneration, a disorder caused by overactive complement, are at greater risk of developing severe complications and dying from COVID. Complement inhibitors may help treat patients with severe disease.
Researchers at UVA School of Medicine discovered that brain defenders called microglia release a unique immune molecule to control the parasite in the brain, preventing symptomatic toxoplasmosis. This finding has implications for brain infections, neurodegenerative diseases and autoimmune disorders.
A study finds that immune suppression in older adults is reversible and can be relieved by targeting a specific cell type. This breakthrough could lead to more effective flu vaccines and potentially COVID-19 vaccines, increasing protection for seniors.
Researchers found that psychological recovery can take place while still experiencing stressful conditions, contrary to previous research. Employees reported feeling less powerless and more authentic within two weeks of the crisis beginning.
A study has identified genetic variants that may contribute to the development of chronic immune and inflammatory diseases, such as type 1 diabetes and rheumatoid arthritis, in early childhood. The research found thousands of genetic variants driving gene expression across different conditions.
Researchers identified TLR7 as an essential player in the immune response against SARS-CoV-2. Mutations in this gene can lead to severe illness, highlighting a potential link between genetic factors and COVID-19 severity.
Researchers have uncovered how immune cells use chemical signals to navigate to the lymph nodes, where they help combat harmful bacteria and viruses. This discovery may pave the way for new treatments and a better understanding of why the immune system sometimes fails.
Researchers discovered brain-resident immune cells that play a crucial role in normal brain development and are essential for the regulation of brain functions. The findings suggest a connection between gut bacteria, white blood cells, and neurological diseases.
Researchers discover that alcohol activates microglia in the brain, altering geometry and increasing dopamine diffusion, which may promote addiction. This study provides a new understanding of alcohol's effects on the brain and suggests potential treatments.
Researchers developed a breakthrough technology to resolve the problem of nanoparticles being cleared from the bloodstream too quickly. By exploiting the body's natural process of eliminating old red blood cells, they found an elegant solution that prolongs blood circulation for virtually any nanomedicine.
A Rutgers researcher has found that a weakened immune system, rather than HIV itself, contributes to the prevalence of dental cavities in children. The study, published in Scientific Reports, sampled nearly 300 children and found that those with normal immunity levels had lower cavity rates, regardless of HIV status
Researchers from Peter the Great St.Petersburg Polytechnic University and Tsinghua University created a dynamic light scattering method to determine immune complex sizes in blood serum. The new method can detect diseases, such as autoimmune disorders and cancer, by analyzing changes in immune complex concentrations.
Researchers found that bats' ability to control inflammation may hold clues to developing new treatments for diseases in humans. By understanding the mechanisms underlying bats' unique abilities, scientists may be able to develop therapies to fight diseases like COVID-19.
Researchers developed a stable 'mirror-image' peptide that effectively blocks the interaction between TIGIT and its ligand PVR, inhibiting tumor growth and metastasis. This approach offers an alternative point of attack for cancer immunotherapy, potentially outperforming existing anti-PD-1 therapy.
Scientists at Salk Institute have identified a key gene that modifies regulatory T cells, fine-tuning the immune response. By controlling these cells, they may be able to treat both cancer and autoimmune diseases.
The study reveals that Burkholderia pseudomallei infection sets off a series of events that provoke the host's immune system, causing infected cells to self-destruct. The researchers found that abnormal cell fusion stimulates the type 1 interferon signaling pathway, leading to autophagy and cell death.
New cost-effective technology enables advanced immunology studies on Tasmanian devils and reveals conserved immune pathways across 160 million years of evolution. The system can be applied to any vertebrate species, including humans.
A mouse study found that consuming black raspberries can reduce swelling caused by contact hypersensitivity, a condition that triggers redness and inflammation in the skin. The researchers believe that black raspberries modulate dendritic cells, which help regulate the immune system's response to allergens.
Researchers developed a new method to apply anti-inflammatory substances to implants to reduce undesirable inflammatory reactions. The coatings contain heparin and hyaluronic acid, which inhibit the immune system's response to the implant.
A study has identified genetic variants that predispose to cancer and impair the immune system. The research found up to 57 genetic variants in 13 types of cancer, which affect the body's defenses. The immune system plays a key role in protecting against malignancies, but cancer cells have mechanisms to escape immune responses.
Researchers at La Jolla Institute for Immunology have identified a key protein controlling T follicular helper cell (Tfh) differentiation. The protein Bcl6 acts as a master regulator in the immune system, blocking or promoting gene expression to control immune responses. This study opens the door to designing vaccines and therapies tha...
Researchers found that parasite infection was strongly associated with the overall composition of the microbiome, which could accurately predict a person's country and lifestyle. The study also discovered that the presence of four soil-transmitted gut parasites tended to co-occur at a higher rate than chance.
Researchers from Radboud University Medical Center found that norepinephrine suppresses the function of white blood cells, impairing the body's ability to combat infections. The study suggests that alternative antihypotensive agents like vasopressin may be more effective in sepsis patients.
The ADVOCATE study demonstrates avacopan's effectiveness in reducing corticoid use and achieving sustained remission in patients with AAV, particularly those with renal involvement. The treatment also showed improved outcomes with lower infection rates compared to standard immunosuppressive therapy.