Articles tagged with Leukocytes
Christopher Goodnow's work challenged the concept of complete clonal deletion, revealing self-reactive B cells' ability to acquire self-tolerance and potentially cause autoimmune disease. His research discovered that these cells are essential for immune function and can be converted into functional B cells through 'clonal redemption'.
Researchers discovered PECAM-dependent mechanism for immune cell traffic in the retina, identifying neutrophils as proresolving mediators. Targeting PECAM controlled white blood cell traffic, leading to improved clinical outcomes in uveitis model.
A new study has discovered a molecular navigation system that precisely directs neutrophils to sites of infection, allowing them to fight off disease-causing microbes without damaging healthy tissue. This finding represents a promising therapeutic strategy for treating chronic inflammatory diseases.
Researchers at La Jolla Institute for Immunology discovered that immune cells in lung tissue express genes associated with autoimmune disease risk. These tissue-resident immune cells may actively drive the development of autoimmune diseases, particularly in women.
Researchers mapped over 1.25 million cells to reveal sex-specific differences in the human immune system. Female immune cells exhibit higher levels of B cells and regulatory T cells, but also a greater predisposition to autoimmune diseases like lupus due to their highly reactive profile.
A new study from Finland shows that sauna bathing releases white blood cells into the bloodstream, playing a key role in the body's defense against pathogens and diseases. This periodic release of white blood cells is beneficial for immune defense.
A new study reveals that C-reactive protein is associated with ventricular arrhythmias in stable coronary disease, while its relationship with heart rhythms is different in patients with cirrhosis. In cirrhosis, only high white blood cell count shows a trend for linking to unstable rhythms.
Researchers found that eosinophils suppress chordoma growth and induce cell death in tumor cells, suggesting them as a novel immunotherapeutic target. The study's findings provide new insight into the immune mechanisms underlying chordoma progression.
Researchers found that people experiencing everyday discrimination have elevated levels of "exhausted" white blood cells, indicating chronic stress may hamper the immune system. This study suggests social experiences like discrimination shape immune health at the cellular level and contribute to biological aging.
Researchers have discovered that feline infectious peritonitis virus infects a broader range of immune cells, including B lymphocytes and T lymphocytes. The findings suggest that the virus can persist in these cells even after treatment, potentially leading to long-term immune problems.
A new study from Texas A&M University reveals that circadian disruptions change the structure of mammary glands, weaken immune defenses, and fuel aggressive breast cancer. Disabling an immune checkpoint molecule called LILRB4 helps restore the immune system's ability to fight back.
Researchers develop ex vivo treatment of blood stem cells with Rhosin, a RhoA inhibitor, to rejuvenate them and improve the production of healthy blood cells. This strategy targets the core of the ageing process, making blood stem cells more capable of regenerating and producing new healthy blood cells.
Researchers discover that temperature affects immune cell movement and efficiency, with Myosin II playing a key role in regulating cellular thermo-adaptability. The study finds that increased temperature leads to faster immune cell migration and a higher number of cells entering lymphatic vessels.
Scientists have discovered that immune cells shed their glycocalyx layer to move into tissues, changing the understanding of inflammatory skin diseases like psoriasis. This finding may lead to new approaches in developing drugs targeting immune cell movement and treating infections and inflammatory diseases.
Researchers have engineered a monoclonal antibody that blocks allergic reactions against common pollen when applied inside the nose of mice, providing new hope for hay fever sufferers. The treatment, known as a 'molecular shield,' acts immediately and locally at the lining of the nose to prevent IgE antibodies from being activated.
The researchers created a chemotaxic biomimetic liquid metallic entity that exhibits various behaviors like engulfing foreign substances and changing shape, similar to living cells. These liquid metal structures can autonomously climb slopes and move through complicated surfaces with versatility and potential for future applications.
Researchers at Terasaki Institute have developed simvastatin-loaded nanoparticles to target adipose tissue inflammation, promoting fat tissue browning and weight loss. The treatment effectively inhibits obesity-related inflammation, controlled white fat production, and demonstrated strong anti-inflammatory effects.
A new study found that cystic fibrosis patients with more severe disease characteristics exhibit shorter leukocyte telomere length and greater LTL attrition. This association may accelerate aging and increase susceptibility to age-related diseases, emphasizing the importance of early CF diagnosis and timely therapeutic intervention.
Researchers have found that natural killer cells instinctively recognize and attack the XPO1 protein, which drives cancer growth. By targeting this protein, scientists may be able to activate more killer cells to destroy cancer cells. The study suggests that this approach could lead to personalized cancer treatment with less side effects.
Researchers found that osteoporosis is independently associated with rapid leukocyte telomere length shortening over a 2-year period. A total of 233 subjects were enrolled in the study, and multivariable linear regression analysis indicated that only osteoporosis was significantly linked to LTL shortening.
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 study found extensive alternative splicing of messenger RNA in untreated multiple sclerosis patients compared to healthy controls. Interferon-ß therapy corrected dysregulated alternative splicing, linking it to future clinical exacerbations.
Researchers have discovered a previously unknown mechanism behind immune tolerance, where B cells teach T cells to ignore the body's own proteins. This failure can lead to autoimmune diseases such as Multiple Sclerosis-like Neuromyelitis optica.
A team of researchers discovered a multiprotein complex involving NLRP3, AIM2, NLRC4, and Pyrin that drives PANoptosis, a type of programmed inflammatory cell death. The findings have implications for understanding inflammasome biology and identifying potential therapeutic targets.
Researchers found a link between short telomeres in ATII cells and lung fibrosis in post-COVID-19 patients. The study revealed loss of ATII cellularity and shorter telomeres concomitant with increased fibrotic lung parenchyma remodeling.
Researchers from Tokyo Medical and Dental University have identified a previously unknown intermediate cell type, pre-basophils, which plays a critical role in the differentiation of precursor cells into mature basophils. These newly discovered cells exhibit higher proliferation capacity and distinct surface protein expression profiles...
A new study reveals that HOXA5 binds to protein IκB-α, boosting its cancer-suppressing properties and reducing the development of breast cancers. The presence of HOXA5 suppresses malignancy in breast epithelial cells by blunting NF-κB action.
Researchers at Edith Cowan University have found a genetic link between human leukocyte antigens and immunotherapy side effects in non-small cell lung cancer patients. The discovery enables doctors to tailor treatment to individual patients, reducing the risk of toxicities and improving overall outcomes.
Researchers developed a new SERS-based multiplexing technique to detect kidney injury biomarkers SLPI and IL-18, achieving high sensitivity and reliability. The approach shows promise for objectively assessing donor kidney quality, potentially reducing discard rates and recipient complications in clinical practice.
Johns Hopkins Medicine researchers have developed a 3D map of blood vessels and stem cells in a mouse skull, revealing previously unknown niches for stem cell residence. The map provides precise locations of blood vessels and stem cells, which could be used to repair wounds and generate new bone tissue.
Microglia play a vital support role in maintaining blood vessels in the brain, regulating blood flow and capillary diameter. This discovery may lead to new therapies for diseases affecting small brain vessels, such as Alzheimer's and stroke.
Researchers have discovered protein markers related to chronic lymphocytic leukemia (CLL), a common form of leukemia. The markers can help determine patients' prognoses and point to potential therapeutic targets.
Recent study reveals significant strengthening of tropical Pacific western boundary currents (WBCs) over the past six decades, primarily driven by temperature change. The WBCs' intensification is attributed to a strengthening of trade winds in the western Pacific Ocean.
Researchers found that red algae polysaccharides can suppress the activity of immune cells in lab mice, reducing leukocyte count and congenital immunity cell activity. However, it is unclear whether this effect is beneficial or detrimental, and further study is needed to understand its potential as a pharmacological substance.
Researchers discovered a potential strategy to prevent life-threatening inflammation, lung damage, and organ failure in patients with COVID-19. They identified specific cytokines that trigger inflammatory cell death pathways, leading to tissue damage and multi-organ failure. Treatment using existing drugs targeting these cytokines show...
A recent study by Dr. Ganesh Halade and colleagues found that lipoxygenase deficiency delays heart failure progression and improves survival in mice. The researchers discovered that epoxyeicosatrienoic acids facilitate cardiac healing after a heart attack, reducing diabetes risk biomarkers and altering plasma metabolic signaling.
A study by the University of Helsinki found that insufficient sleep is associated with changes in DNA methylation in gene regulatory elements related to the nervous system development pathway. This indicates a potential link between chronic sleep deprivation and long-term health risks.
A study describes a microfluidic system to concentrate and encapsulate circulating tumor cells, which are cancer cells that can travel through the bloodstream. Experiments with prostate cancer cells revealed high matrix metalloprotease enzyme activity.
A novel mechanism of action has been identified for the treatment of inflammatory bowel disease, showing promise for a new therapeutic approach. The study discovered that an orally active small molecule, ER-464195-01, suppresses leukocyte adhesion by binding to calreticulin and inhibiting integrin activation.
A compound derived from immune cells has been found to treat psoriasis in mice, with the potential to be effective against other autoimmune diseases such as multiple sclerosis and rheumatoid arthritis. The study suggests that the compound suppresses an inflammatory pathway that is overactive in these conditions.
A comprehensive catalog of diseases associated with human leukocyte antigen (HLA) gene variations has been generated by researchers at Vanderbilt University Medical Center. The catalog identifies individuals at risk for certain autoimmune diseases and potential new associations with multiple sclerosis and cervical cancer.
A team of researchers at Hokkaido University has uncovered the structure of a protein called HLA-G2 that protects embryos from being attacked by their mothers' immune systems during pregnancy. The structure was found to be similar to another class of human leukocyte antigens, suggesting its evolutionary origin.
A new study reveals a significant decrease in airway wall cells and certain inflammatory cells in smokers and mild to moderate COPD patients. The findings challenge the widely accepted description of airway inflammation in these individuals, suggesting a more complex underlying mechanism.
Researchers develop a new PET radiotracer that can quickly identify life-threatening atherosclerotic plaques by detecting inflammation. This breakthrough has the potential to prevent heart attacks and strokes by allowing for early treatment of atherosclerosis.
Researchers found that shorter leukocyte telomere length is associated with poorer cardiovascular health and reflects cardiovascular health more accurately in women and white people. The study used data from the National Health and Nutrition Examination Survey to measure telomere length and overall cardiovascular health in 5,194 subjects.
Scientists successfully implanted encapsulated insulin-producing human stem cell-derived islet cells into mouse models of diabetes, maintaining long-term blood glucose control without immunosuppression. The study uses chemically-tweaked gel capsules that resist scar tissue buildup, a major hurdle in previous research.
The FASEB MARC Program has announced travel award recipients for the Society of Leukocyte Biology Joint Meeting. This year, 1 student and postdoctoral researcher received a total of $1,850 to encourage participation from underrepresented groups in biomedical research.
A novel approach to create human red blood cells and platelets in vitro has been identified by researchers at Boston University School of Medicine. This finding could potentially reduce the need for blood donations, speed up research on therapies to treat diseases such as sickle cell disease.
The endothelium, a cellular layer lining blood vessels, has an efficient barrier function maintained by its ability to heal micro-wounds. New research shows that biomechanical signals trigger the recovery response, generating reactive oxygen species to close gaps and restore functionality.
The JIPM authors refute Greenpeace's claim that genetically modified corn caused the western bean cutworm to spread. Instead, they cite various ecological and agronomic factors, such as conservation tillage, reduced insecticide use, and climate change, which may have contributed to the WBC's range expansion.
A study found that gene expression changes in some patients following major trauma can lead to severe inflammatory complications. Researchers used DNA microarrays to analyze blood samples and identified genes associated with long-term outcomes. This discovery could help scientists develop new drug targets to prevent such complications.
The FASEB MARC Program has selected three travel award recipients to promote diversity in the basic science community and encourage young scientists at the 2011 SLB Meeting. The awards totaled $4,950 and aim to increase competitiveness of underrepresented minorities engaged in biomedical research.
The FASEB MARC Program has awarded $18,500 to Ashley S. Triplett from the University of Louisville for participation at the 2010 SLB Meeting, aiming to increase underrepresented minorities in biomedical research. The program, funded by the National Institute of General Medical Sciences, supports young scientists and postdoctorates.
A new study reveals that shorter leukocyte telomere length is associated with a significantly increased risk of developing cancer and dying from cancer. Participants with the shortest telomere lengths had approximately three times the risk of cancer compared to those in the longest group.
Researchers found that gastroesophageal reflux disease spurs cytokine release, attracting inflammatory cells to the esophagus. This leads to damage characteristic of GERD, including symptoms like heartburn and chest pain.
Research reveals a correlation between the phase of clock gene expression and habitual sleep timing, suggesting a peripheral circadian clock's role in regulating hormone rhythms and sleep-wake cycles. The study's findings provide new insights into the relationship between genetic markers and sleep disorders.
A study by Cincinnati Children's reveals that fibrin plays a crucial role in the inflammatory response and development of rheumatoid arthritis. Researchers suggest that therapies targeting the interaction between fibrin and a specific integrin receptor may help treat arthritis patients.
Acute stress temporarily mobilizes all major types of immune cells, which may enhance the immune system's ability to protect against infections and diseases. However, chronic stress may weaken the immune system, and excessive stress can worsen pre-existing inflammatory illnesses.
Researchers present novel therapeutic approaches to treat IBD by targeting adhesion molecules, platelet recruitment, and CTLA-4-Ig. These approaches show promise in reducing intestinal inflammation and promoting tolerance in experimental models.
Researchers have found that MMP enzymes recruit circulating inflammatory cells to form atherosclerotic plaques, which can lead to acute cardiovascular events. The study also reveals the complex roles of MMP enzymes in remodeling the extracellular matrix, suggesting new therapeutic strategies to limit plaque growth.