Articles tagged with Autoimmune Disorders
A UC Riverside-led study found that reduced PTPN2 activity in intestinal epithelial cells leads to decreased Paneth cell antimicrobial peptide production, disrupting the gut microbiota and increasing E. coli. This loss can serve as a marker of IBD disease.
A study reveals that neutrophils destroy liver cells undergoing apoptosis by burrowing into them, contradicting previous beliefs about their role in immune responses. The findings also suggest that a lack of neutrophils may contribute to human autoimmune liver disease.
A team from Osaka University discovered that celastrol blocks the progression of rheumatoid arthritis by inhibiting a protein complex that promotes autoimmune responses. The researchers found that celestrol binds to COMMD3 covalently, preventing the formation of the COMMD3/8 complex and impairing antibody production.
Research suggests that high doses of sucralose can lower activation of T-cells, an important component of the immune system, in mice. This finding could lead to a new way of using sucralose therapeutically to help dampen T-cell responses in patients with autoimmune diseases.
Researchers at Hokkaido University discovered itaconate's modulatory effect on T helper and T regulatory cells, potentially leading to new treatments for autoimmune diseases. The study found that itaconate inhibits Th17 cell differentiation and promotes Treg cell development, reducing disease symptoms in mice models.
A new study published in Arthritis & Rheumatology reports significant improvements in disease activity for patients with refractory juvenile dermatomyositis treated with abatacept therapy. The randomized controlled trial demonstrates the potential of abatacept as a treatment option for this rare and debilitating condition.
Researchers have developed a potential treatment for autoimmune encephalitis by creating an NMDA receptor fusion construct that neutralizes pathogenic antibodies. This innovative approach has shown promise in reducing signal transmission to neurons and may lead to improved treatment options for patients with this rare and serious disease.
Researchers identified a type of immune cell called age-associated B cells as key drivers of lupus disease. Targeting these cells in a mouse model reduced disease progression, suggesting a potential new therapy for lupus patients.
Researchers discovered polyphenol PCB2DG reduces inflammatory responses by inhibiting glutamine uptake in CD4+ T cells, promoting gene expression to synthesize amino acids. The study's findings offer potential for dietary polyphenol treatment of autoimmune diseases.
A recent study by the University at Buffalo has discovered that genetic variations affecting immunity and metabolism have been preserved in humans for millions of years. This finding supports the theory of balancing selection, which suggests that certain genetic traits can be beneficial or harmful depending on environmental conditions.
The new grant enables LJI to lead the Human Immunology Project Consortium Data Coordinating Center, providing access to human immunoprofiling data from over 11,000 participants. This will fuel scientific collaboration in understanding immune responses to viruses, autoimmune diseases, and more.
Researchers from Tokyo University of Science discovered β-damascone, a natural aroma compound found in rose fragrance, modulates dendritic cell functions and reduces inflammatory cytokine production. The study showed β-damascone inhibits antigen-dependent activation and Th1 cell development, as well as ear inflammation in mice models.
A study published in the Journal of Biological Chemistry found that a fish oil derivative called DHEA can reduce inflammation and disease severity in mice with multiple sclerosis. By supplementing the diet of mice with DHEA, researchers noticed a decrease in MS-like disease symptoms and an improvement in the immune system's response.
Researchers at NYU Langone Health identified the genetic basis of VEXAS syndrome in 2020, now estimating its prevalence among US men and women over 50. The study found that approximately 1 in 4,269 American men over age 50 and 1 in 26,238 women may develop the syndrome.
Researchers have isolated two new bacterial species from patients with inflammatory bowel disease (IBD), which break down the protective mucus layer of the gut. The bacteria, Allobaculum mucilyticum and Allobaculum fili, are highly efficient at degrading intestinal mucus, leading to potent immune responses.
A study published in Diabetes Research and Clinical Practice found that women with diabetes mellitus are at a higher risk of venous thromboembolism (VTE) than men, particularly during perimenopause. The risk is 1.52 times higher for women with DM compared to those without DM.
APS patients often experience internal feelings of poor health despite normal lab values, with significant impairments in physical and cognitive function linked to lifestyle factors and mental health medications. Researchers are now working to better understand these impacts through systematic patient-reported outcomes measures.
Researchers at Kyoto University have discovered a vital role of two proteins, ABCA1 and Aster-A, in maintaining the asymmetric distribution of cholesterol within cells. This process allows for selective control over substances entering and leaving cells.
A study found that genetic variants near ERAP2 and TICAM2 provided protection against Yersinia pestis, the bacterium responsible for the Black Death. These variants were also associated with improved detection and resistance to other pathogens, but at a cost: increased risk of autoimmune disorders like Crohn's disease.
A retrospective cohort study of 1,404 subjects with type 2 diabetes found that metformin use reduced the risk of delirium by 50% and decreased 3-year mortality rates. The study suggests that metformin may be a potential benefit for patients with diabetes, particularly in reducing age-related disorders such as dementia.
Researchers at Scripps Research developed nanoparticles that target only the immune cells driving an autoimmune reaction, delaying or preventing severe disease in a mouse model of arthritis. The treatment boosts regulatory T cell populations and reduces anti-self-antigen antibody production.
Researchers review myeloid-derived suppressor cells' phenotypes, mechanisms of immunosuppression, and roles in cancer treatment. Studies on non-malignant diseases, such as autoimmune disorders and obesity, are lacking, highlighting the need for further investigation.
A novel HNF1A gene variant has been found to cause monogenic diabetes, affecting almost seven percent of all cases in Greenland. This discovery may pave the way for precision treatment using tablet therapy with sulphonylurea, offering a simpler and cheaper alternative to insulin.
Researchers from the University of Zurich have discovered why a stem cell transplant is effective in treating multiple sclerosis. The study found that memory T cells reappear immediately after the transplant and do not trigger an autoimmune reaction due to pre-damage caused by chemotherapy. This knowledge enables the body to gradually ...
Researchers will investigate immune system differences between men and women to better understand neurodegenerative diseases. The study aims to identify why certain neurological diseases primarily affect males or females, and how this difference impacts disease progression.
Researchers at the University of Illinois Chicago have discovered a small molecule capable of manipulating an immune process that plays a crucial role in cancers and autoimmune diseases. The newly identified enzyme inhibitor could enhance immune responses against tumors, increasing their visibility to T-cells.
Researchers successfully visualized systemic joint involvement in patients with autoimmune arthritis using ultra-low dose total body PET/CT scans. The scans showed high agreement with standard joint-by-joint rheumatological evaluations and a moderate to strong correlation with rheumatological outcome measures.
A new study found that a protein called apoptosis inhibitor five (API5) protects most people with the mutation linked to Crohn's disease from developing the illness. Norovirus infection blocks API5 production in mice with Crohn's, killing gut-lining cells and tipping the balance towards autoimmune disease.
Krembil Brain Institute researchers propose a new mechanistic model for Alzheimer's as an autoimmune condition that attacks the brain. This new approach challenges traditional views on brain diseases and opens the door to innovative therapies.
A study found that most people with long COVID (persistent symptoms) recover within 12 months. However, some patients still experience symptoms and may benefit from seeing a rheumatologist for autoimmune disorder assessment.
Lenabasum has been shown to improve skin symptoms in patients with amyopathic dermatomyositis, demonstrating significant reductions in inflammation and disease severity. The study's findings suggest that lenabasum is a well-tolerated treatment option for refractory skin disease.
A study published in the European Respiratory Journal found that blood samples from long COVID patients show signs of autoimmune disease a year after infection. Nearly 80% of patients had autoantibodies in their blood, which persisted in around 30% of cases.
A new study by Tokyo University of Science researchers reveals that dendritic cell immunoreceptor (DCIR) plays a crucial role in the development of colorectal tumors. Blocking DCIR may prevent ulcerative colitis and colon cancer, offering a potential therapeutic target for treating these diseases.
Researchers have created a nanobody that can penetrate tough brain cell coatings and disrupt alpha-synuclein clumps, which contribute to neurodegenerative diseases. The nanobody, PFFNB2, shows promise in preventing disease progression in live mouse brains.
Osaka University researchers identified medullary thymic epithelial cells (mTECs) expressing neuromuscular molecules in myasthenia gravis-thymoma samples. These findings suggest a new connection between the two diseases and may lead to novel therapeutic methods.
Researchers captured the first images of an autoantibody bound to a nerve cell surface receptor, providing insight into neurological autoimmune disease. This discovery could lead to new ways to diagnose and treat autoimmune conditions.
A new study by the University of Pittsburgh found that patients with diabetes on Medicare Advantage plans are more likely to receive preventive treatments, but less likely to receive newer and more expensive medications. This disparity can lead to poorer health outcomes, including higher blood pressure and worse diabetes control.
Using nearly two decades of research and ultrabright X-ray beams, scientists have created a detailed structural map of the nuclear pore complex (NPC), a key regulator of cellular operations. The results provide significant implications for understanding disease mechanisms and developing new treatments.
Researchers at Karolinska Institutet have improved the ability of a protein to repair oxidative DNA damage, creating a new drug development concept. The technique can lead to improved treatments for diseases involving oxidative stress.
Researchers at Scripps Research have identified a protein in sensory nerves that detects mechanical itch, which could lead to better drug treatments for chronic itch conditions. The discovery was made by Ardem Patapoutian and his team, who found that PIEZO1 is expressed in two types of sensory neurons implicated in chemical itch.
A new research centre, PRESIS-DIA, will study the causes of diabetes development over a lifetime and integrate genetics, cell biology, and clinical information. The centre aims to develop customised, unique treatment for individuals, enabling better diagnosis and therapeutic strategies.
Researchers elucidated the protease-inhibitory mechanism of A2ML1 using cryo-EM structures, shedding light on its role in severe autoimmune blistering diseases. The study improves understanding of related proteins and their function.
A study analyzing 17 million patient GP records in England found that people with certain inflammatory immune conditions were at higher risk of dying or needing hospital care from COVID-19. The analysis suggests that targeting prevention strategies and early interventions towards those most at risk can help inform evidence-based policy.
A multicenter study of 736 AIH patients who underwent liver transplants found risk factors including age, immunosuppressant use, and serum IgG levels. Recurrent AIH also affected survival rates, with 81% of patients dying within five years.
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.
Researchers at Gwangju Institute of Science and Technology have developed a new bioinformatics pipeline, CRESSP, to investigate the mechanism underlying autoimmune diseases following SARS-CoV-2 infection. The tool identified potential epitopes responsible for COVID-related autoimmune diseases and predicted cross-reactive epitopes of di...
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.
Researchers have identified a genetic cause of lupus, a chronic autoimmune disease that affects 50,000 people in the UK. The TLR7 gene mutation causes inflammation in organs and joints, leading to debilitating symptoms. This discovery paves the way for new treatments targeting the mutated gene.
Researchers discovered that checkpoint inhibitors can activate regulatory T cells, which can counteract the immune response. Blocking PD-L1 enhanced effector Treg activity, reducing ability to control parasite infections. This finding highlights complexity of immune system's balance between controlling pathogens and protecting healthy ...
Researchers have shed light on how immune checkpoint protein LAG3 modulates T cell activity, providing crucial information for the development of new LAG3-blocking therapies. The study found that LAG3 suppresses T cell activation by disrupting coreceptor-Lck association, even in the absence of MHC Class II molecules.
Researchers analyzed genomic profiles of over one million cells from 1,000 people, identifying a link between specific genes and immune cell types in autoimmune diseases. The discovery could lead to tailored treatments and refine clinical trials.
Researchers at UT Southwestern Medical Center have discovered a new binding site on the STING protein, which plays a critical role in launching immune attacks. This finding could lead to new ways of manipulating STING to prompt stronger immune responses or stem its action in autoimmune diseases.
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.
Research in the Journal of Hepatology suggests that COVID-19 vaccines are unlikely to cause liver injury, but liver transplant patients may experience delayed care due to the pandemic. The study found that vaccinated patients with liver disease had a lower antibody response compared to healthy patients.
Scientists have identified a clear genetic signature of Parkinson's disease in people's memory T cells, which could lead to new therapies and diagnostics. The study found that targeting these genes may help stop T cells from attacking brain cells in Parkinson's.
Treatment with an antibody to repulsive guidance molecule-a (RGMa) prevents disease-associated signaling processes and reduces symptoms of neuromyelitis optica in rats. This discovery suggests that anti-RGMa antibodies may represent an effective therapeutic strategy for NMO-associated neuropathic pain and motor deficits.
A new study predicts rheumatoid arthritis progression using a polygenic risk score. The score, generated from genetic variants associated with the disease, significantly differed between severe and non-severe progression groups. Higher scores were linked to higher risks of severe progression, particularly among younger patients.
Scientists create a hybrid technology called heteroduplex oligonucleotide (HDO) that can safely and effectively silence disease-causing genes in certain immune cells. The HDO delivery method has shown promise in improving symptoms of autoimmune disorders and cancers by regulating the function of T and B lymphocytes.
A recent study by La Jolla Institute for Immunology researchers has identified new subsets of CD4+ 'helper' T cells that are linked to autoimmune disease risk. The team used single-cell RNA sequencing to compare gene expression in over 1 million CD4+ T cells from 89 healthy donors, revealing sex-based differences in immune cell functio...
A preclinical study identified a protein complex critical for regulating apoptosis and necroptosis. Inhibiting this complex may help prevent excessive cell death and tissue damage associated with heart attacks, autoimmune disorders, and COVID-19. Researchers believe that targeting the PPP1R3G/PP1γ pathway could lead to new treatments f...