Articles tagged with Immune System
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Researchers develop targeted delivery system to boost regulatory T cells, which manage inflammation and reduce brain damage. The treatment increases IL2 levels, allowing regulatory T cells to survive and reducing cognitive impairment.
Australian researchers have discovered specific gene networks rewired to drive peanut allergy remission through a combination treatment of probiotic and oral immunotherapy. This network reprogramming shuts down the allergic immune response responsible for causing food allergies.
Researchers identified a blood biomarker that predicts severe Crohn's disease and is detectable up to seven years prior to diagnosis. The biomarker neutralizes protective effects of a cytokine, leading to intestinal damage and weakening the immune system.
Researchers developed a genetic test that diagnoses primary immunodeficiency disorders (PID), revealing inherited genetic defects in nearly half of patients. The test uses next-generation sequencing technology to identify specific gene variants associated with PID, enabling targeted treatment and earlier intervention for family members.
A global effort has been launched to create a digital twin of the human immune system, inspired by the COVID-19 pandemic. This 'digital twin' could enable precision medicine for various ailments, including cancer and autoimmune diseases.
Researchers discovered that Clostridium septicum kills cells by releasing a toxin that acts like a hammer, triggering an overactive immune response. This can lead to sepsis and shock, resulting in rapid patient death. New therapies are being developed to neutralize the toxin and block the immune receptor.
A randomized clinical trial found that a specific probiotic supplement accelerated the maturation of the microbiome in extremely preterm infants, leading to reduced intestinal inflammation and improved feeding tolerance. The study also showed potential benefits for reducing the risk of food allergies in these vulnerable infants.
Researchers linked dietary cholesterol to exacerbation of viral infections in mice, showing that high levels of cholesterol made mice sicker when infected with influenza. The study found that dietary cholesterol increased the number of cytokine-producing immune cells in the lungs, contributing to excessive inflammation.
Scientists found a connection between the SARS-CoV-2 virus and the production of misfolded proteins called amyloids, which can cause complex symptoms and damage in organs such as the heart and kidneys. The researchers' discovery may help explain why COVID-19 often affects multiple parts of the body.
The Mount Sinai Microbiome Lab will use advanced methods to study the microbiome's role in autoimmune diseases such as rheumatoid arthritis and systemic lupus. The lab aims to identify microbial features that can help find more precise matches between diseases and treatments.
A new study by Gladstone Institutes and UC San Francisco found that infection with the Omicron variant provides weak immune response in unvaccinated individuals, failing to confer broad protection against other variants. In contrast, vaccinated individuals show stronger immunity against multiple COVID-19 strains.
Scientists estimate 20% of children and 26% of adults in the US consume high levels of live microorganisms daily. These findings suggest a link between dietary microbes and health outcomes, highlighting the importance of quantifying live microbes consumed through food and supplements.
A McMaster University research team found that Type I interferon regulates the immune response to target infected tissues, preventing bystander damage. The study used mice and COVID-19 patient data to investigate IFN's role in regulating a potentially dangerous immune response.
Scientists discovered that commensal fungi like Candida albicans need to be alive and actively producing proteins to elicit a beneficial immune response. The fungus oscillates between high and low expression of the UME6 gene, signaling its benefits to the body.
Researchers discovered that adaptive immune response against TB matures over time, with key players in immunity becoming activated by three months after infection. The emergence of these activated T cells is inversely correlated with the number of granuloma-contained live bacteria, suggesting they play critical roles in bacterial control.
A new biomaterial-based technique has improved islet transplants for type 1 diabetes treatment by inducing permanent immune acceptance. The microgels educate the immune system to accept the graft, making it possible to regulate blood glucose levels without chronic immunosuppression.
A study from the University of Birmingham and National Institutes of Health found that antibiotics can lead to fungal infections by disrupting the gut's immune system. Using immune-boosting drugs alongside antibiotics may reduce health risks associated with these complex infections.
Researchers at University of Missouri, Georgia Tech and Harvard University have successfully demonstrated a new Type 1 diabetes treatment in large animal models. By transplanting pancreatic islet cells with a molecule called FasL, they prevent rogue immune cells from destroying the transplanted cells.
Researchers found that MS patients treated with Rituximab who have higher B cell counts of 40/µL or more develop protective levels of antibodies after vaccination. This suggests that measuring B cell level before vaccination is crucial for increasing the chance of a positive response.
Two new papers from the Human Cell Atlas have created open-access atlases of immune cells in the human body, mapping their characteristics across nine organs during development and 16 adult tissues. The studies reveal new types of immune cells and provide a framework for predicting cell type identity and immunological memory.
Researchers created multi-tissue cell atlases to transform our knowledge of biology, infection, and disease. The studies revealed novel cell functions, immune cell types, and disease genes across the human body.
A team of scientists identified a subset of T cells that show up in great numbers in head and neck tumors but not in similar tissues, suggesting they are working to protect tumor cells. This discovery may help explain why immunotherapies are less effective against solid tumors, highlighting a potential target for future drugs.
A UC Davis study found a critical agent keeping KSHV dormant and undetected by the immune system. The virus is linked to various cancers and AIDS-related diseases. The researchers identified CHD4 as a key regulator of the latency-lytic switch, allowing the virus to stay silent.
The new center aims to advance a groundbreaking combination of focused ultrasound and cancer immunotherapy, potentially revolutionizing cancer treatment. The partnership will focus on overcoming existing limitations of immunotherapy and expanding treatment options for various types of cancer.
Researchers at Karolinska Institutet have mapped the formation of hybrid strains in Trypanosoma cruzi, a parasite causing chronic infection and severe symptoms. These hybrids are more effective at evading the immune system and causing disease, but understanding their formation can help develop new diagnostic and treatment methods.
A new study suggests that supplementing a diet with Ascidiacea, also known as sea squirts, reverses some main signs of aging in animal models. The researchers found that plasmalogens, vital to body processes, decrease with age and contribute to neurodegenerative diseases like Alzheimer's and Parkinson's.
A University of Washington model found that the body's ability to create cloned immune cells falls significantly with age, leading to increased susceptibility to COVID-19 in the elderly. The study suggests that genetic limits on cell division may play a role in the devastating effects of COVID-19 on older adults.
A $66,000 NIH grant will support Karry Weston's two-year study on the lack of breastfeeding in rural Missouri. The goal is to identify cultural factors influencing mothers' decisions, with a focus on improving maternal care in rural communities.
Researchers found that individuals with a diverse population of macrophage cells, which include M2 and regulatory macrophages, are better protected against severe COVID-19. The study suggests that a balance between pro-inflammatory and anti-inflammatory responses is key to preventing the worst symptoms.
Researchers have identified potential biomarkers in lupus nephritis through large-scale protein analysis, which may replace invasive tests. The study's findings could lead to more accurate diagnosis and treatment of the disease.
A study led by Kobe University researchers found that idiopathic autism is caused by epigenetic abnormalities in hematopoietic cells, leading to immune dysregulation and brain-gut axis disorders. The study used BTBR mice as a model and identified histone deacetylase HDAC1 as a common mechanism underlying these pathologies.
Researchers at Arizona State University have developed a new technique called evanescent scattering microscopy (ESM), which allows for the visualization of proteins and other vital biomolecules with unparalleled clarity. This label-free imaging method reduces light-induced heating and requires no fluorescent dye or gold coating, making...
A study from North Carolina State University found that critically endangered Wyoming toads have low genetic diversity in their immune systems, which could impact their ability to respond to new pathogens. The findings inform captive breeding strategies for endangered animal populations.
Researchers at Karolinska Institutet have developed a method to identify the immune cells involved in autoimmune diseases and identified four new target molecules for personalized treatment of multiple sclerosis. This approach could lead to more precise treatments with fewer side effects, potentially benefiting other autoimmune diseases.
Professor Holger Frey's innovative research aims to preserve PEGylation benefits while avoiding immune system recognition. His project RandoPEGMed seeks to create modified polymers for medicinal agents, potentially solving the problem of increasing antibody resistance.
A UCLA-led team found that an abnormally suppressed immune system, not a persistently hyperactive one, may be to blame for some cases of long COVID-19. The study suggests boosting immunity in those individuals could be a treatment option.
A study found that prior symptomatic COVID-19 infection provided a similar degree of protection against reinfection as mRNA vaccination, with natural immunity offering a longer window of protection.
Researchers at TU Darmstadt found that x-rays trigger a calcium signalling cascade in T-cells, stimulating the immune response. This discovery could lead to improved cancer treatment by enhancing the killing effect of ionising radiation on tumour cells.
A new study found that Black kidney transplant recipients exhibit a faster clearance rate of tacrolimus, an immunosuppressive drug. The study suggests that considering both sex and race when dosing tacrolimus may reduce adverse effects and enhance transplant outcomes.
Researchers have discovered that blood cancer cells steal membranes from immune cells like Natural Killer cells through a process called trogocytosis. This process allows the cancer cells to put the NK cells to sleep, shutting down their anti-cancer activity. The study also sheds light on how PD-1 inhibitors can be used to 'wake up' th...
Researchers from Trinity College Dublin have discovered how SARS and MERS coronaviruses block the induction of antiviral proteins, preventing a strong immune response. This finding has potential implications for developing new therapeutic options to treat COVID-19 and future deadly coronaviruses.
A recent study found that the Omicron variant is associated with a significant increase in breakthrough infections among cancer patients, especially those undergoing treatment. Protective measures and vaccine adaptations are crucial to mitigate this risk.
A study by University of Helsinki researchers found that the immune system attacks itself in rare type of blood cancer. The immune system plays a role in the development and growth of cancer cells, making current therapies less effective.
A new study identifies a reason for why older adults are more susceptible to infectious diseases and paves the way for potential therapeutic targets. Researchers found that sex-dimorphic elevation of N-glycan branching contributes to age-associated impairment of T cell immunity.
Researchers at UC San Diego found that ovarian cancer tumors activate FAK protein to regulate CD155 expression, creating a shield against immune detection and evading treatment. New molecular targets may boost immune response and lead to new combinatorial strategies for this disease.
A phase I clinical trial demonstrated the safety and efficacy of a novel adeno-associated viral vector-based treatment for HIV, producing measurable amounts of a broadly neutralizing antibody. The treatment showed wide-ranging clinical implications for potentially preventing or treating HIV and other infections.
Naked mole-rats of higher social rank have a larger spleen, which may enable them to fight infections better and deal with inflammation more easily. The researchers also suspect that the spleen influences an animal's longevity, as successful naked mole-rats live longer.
A third dose of COVID-19 vaccine significantly increases immune responses in patients with multiple myeloma, but a subset remains vulnerable. The study found that 88% of patients developed antibodies after the third dose, leading to improved neutralization of the wild-type virus.
Researchers at Tel Aviv University developed a drug delivery system based on lipid nanoparticles that utilize RNA to boost personalized cancer care. The nanodrug enhances chemotherapy effectiveness and reinvigorates the immune system, increasing sensitivity to cancer cells.
A new analysis of data on molnupiravir shows the drug effectively clears active SARS-CoV-2 virus in both immunocompromised and non-immunocompromised patients. The study found similar reductions in viral replication and no infectious virus detected after treatment, indicating equal efficacy in both groups.
Researchers discovered that obesity changes molecular underpinnings of allergic inflammation in both mice and humans. The treatment in obese mice makes their skin worse instead of healing, but a specific drug can 'de-fatten' obese mice without changing body weight.
Researchers found that older killifish have less diverse circulating antibodies compared to younger fish, contributing to reduced immune function. This decrease in antibody diversity may lead to a reduced ability to respond to infections.
A new study by University of Southampton researchers found that a third COVID-19 vaccination improves immune responses in blood cancer patients. The study showed that 92% of patients without recent anti-CD20 treatment had improved antibody responses after the third dose.
Researchers found that people who had COVID-19 and then got vaccinated generated an immune response more specific to fighting viral infections, producing a broader antibody response. This hybrid immunity also produced a cellular immune response called Th1 response, which is antiviral.
A new model suggests that antibodies select antigens based on their surface characteristics, similar to a child playing on stepping stones. The researchers used DNA origami to simulate the behavior of antibodies and found that they tend to favor closer antigen distances.
The FDA has approved a novel combination therapy of relatlimab and nivolumab for patients with metastatic or inoperable melanoma. The treatment significantly delayed cancer progression time compared to nivolumab alone. LAG-3 blockade reinvigorated T cell anti-tumor activity, establishing the pathway as the third immune checkpoint target.
A new study led by Kelly Monaghan at West Virginia University suggests that interrupting the immune response may improve multiple sclerosis outcomes. The researchers found that targeting a specific protein called CCL17 can prevent the disease from attacking the central nervous system, leading to milder symptoms and delayed paralysis.
A new vaccine platform, using spherical nucleic acid (SNA) nanoparticles, has been shown to produce an immune response in animals and offer protection against lethal doses of the SARS-CoV-2 virus. The results suggest that this approach could be used to target other infectious diseases.
Researchers identified common features of pediatric antiphospholipid syndrome, a rare autoimmune disease causing inflammation and recurring blood clots. Nearly half of children with APS experienced recurrent blood clots despite treatment, highlighting the need for early diagnosis and prevention.
A study found that excessive sugar consumption can promote inflammation and autoimmune diseases, such as Crohn's disease and type 1 diabetes. Researchers identified GLUT3, a glucose transporter, as a key player in this process, and proposed blocking its activity to mitigate inflammatory responses.