Articles tagged with Neutrophils
A study by Japanese researchers from Fujita Health University sheds light on the molecular mechanisms of contact dermatitis, revealing that neutrophil extracellular traps play a key role in the condition. The team's findings suggest that inhibiting NET formation could be a new therapeutic strategy for treating contact dermatitis.
A Purdue University chemical engineer has improved upon traditional methods to produce off-the-shelf human immune cells that show strong antitumor activity. The new method, developed by Xiaoping Bao, mass-produces CAR-neutrophils from human pluripotent stem cells with superior and specific antitumor activities against glioblastoma.
A team of researchers has discovered that malignant tumors accumulate lipid delivery molecules called LDL and attract immune suppressor cells called neutrophils, leading to tumor progression. The study also shows that targeting the LOX-1/oxidized LDL axis may be a promising strategy for treating both cancer and cardiovascular disease.
Researchers have identified two distinct phenotypes of inflammatory cell infiltration in severe alcoholic hepatitis, suggesting separate mechanisms driving liver injury and failure. These findings could lead to personalized treatment approaches, such as identifying patients who are more or less likely to respond to steroid therapy.
Researchers have successfully used lasers to control neutrophils, a type of white blood cell, as natural microrobots in living fish. The 'neutrobots' can perform multiple tasks, including delivering drugs to precise locations in the body, and show promise for targeted drug delivery and disease treatment.
Research at Kyoto University found that estradiol suppresses severe skin inflammation in females compared to males, revealing its therapeutic potential. The hormone regulates immune cells and reduces IL-17A and IL-1β cytokines production.
Researchers analyzed 139 patient blood samples to identify common mechanisms underlying COVID-19 recovery. They found that a gradual reduction in neutrophil counts and changes in molecular regulation of the immune system characterize the recovery process.
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 substudy of the ADVOCATE trial found avacopan reduced glucocorticoid use by 86% in ANCA-associated vasculitis patients with respiratory and ENT involvement, while also showing superiority in remission compared to prednisone.
Researchers found significantly higher levels of MMP-2 and MMP-8 in tracheal aspirate samples from COVID-19 patients, contributing to inflammation and tissue damage. The study's findings suggest a novel mechanism underlying severe lung complications and potential new therapeutic targets.
Researchers from McGill University and Italy found that blocking neutrophils can prolong pain, even with anti-inflammatory drugs. The study suggests reconsidering acute pain treatment, and findings are supported by a large UK analysis.
Researchers found that low-density neutrophils are associated with chronic inflammation in obesity, which can lead to comorbidities like type 2 diabetes and cancer. Bariatric surgery reduces these cells in circulation, improving metabolic syndrome components.
Researchers at the University of Illinois Chicago have identified two distinct subtypes of neutrophils, with one subtype being a drug target for treating inflammatory diseases. The discovery paves the way for more targeted therapies that address chronic inflammation without suppressing anti-infection functions.
Researchers found early and persistent activation of neutrophils in patients who developed severe COVID-19. The study suggests that identifying specific gene signatures could lead to effective treatments targeting high-risk patients. This discovery may also inform the development of simple blood tests to prioritize treatment.
Researchers at Universidad Carlos III de Madrid developed a computer vision system to analyze cells in microscopy videos, allowing for automatic characterization of cell behavior. The system enables faster analysis of thousands of cells compared to traditional methods, which typically involve manual segmentation and tracking.
Researchers discovered a signaling mechanism allowing intracellular bacteria like Salmonella to outmaneuver host defenses. By triggering macrophage death and activating the complement system, these bacteria can safely deliver themselves into another macrophage. This 'hack' enables them to persist within infected hosts.
Researchers have discovered disulfiram prevents the formation of toxic webs known as neutrophil extracellular traps (NETs) that contribute to acute respiratory distress syndrome (ARDS). Disulfiram's ability to block NET formation may lead to a new treatment for severe COVID-19 and other lung injuries.
Researchers found that inhibiting gasdermin D, a protein involved in septic patients' organ lesions, can prevent multiple-organ damage and improve prognosis. Disulfiram, a drug originally indicated for alcohol dependence, was shown to inhibit gasdermin D and reduce tissue injury.
Research in mice suggests that first-responder cells launching repair after a heart attack promote more inflammation than necessary, threatening optimum healing of the heart.
Researchers at the CNIC have identified a specific type of neutrophil behavior that predicts cardiovascular disease. The study provides crucial information for developing targeted therapies to minimize the consequences of myocardial infarction.
Researchers at Penn Medicine have developed a structural blueprint for nanoparticles that can target and deliver treatment to white blood cells, such as neutrophils, that contribute to acute lung inflammation. The findings represent a significant step in understanding the condition and function of the immune system.
Researchers found that fibrin buildup triggers an overactive immune response, damaging gums and underlying bone. Suppressing abnormal fibrin activity could hold promise for preventing or treating periodontal disease.
Researchers found that defibrotide suppresses neutrophil release of NETs and reduces downstream blood-clotting in mice with antiphospholipid syndrome. The treatment neutralizes toxic histones, preventing activation of blood vessel cells.
A study examining autopsy tissue samples from COVID-19 patients found frequent and extensive blood clots within heart vessels, but no typical endothelial cell changes. Instead, hypercoagulability of the blood caused by activated neutrophils was detected as a likely culprit.
Researchers found that activated neutrophils release proteins like galectin-9, triggering chronic inflammation and oxidative stress. Early screening for HIV is crucial, and finding ways to reduce negative effects of the infection could be key to improving outcomes.
Researchers at Boston Children's Hospital propose using an existing drug to prevent NET formation, which can lead to severe inflammation in conditions like COVID-19, sepsis, and ARDS. The study shows that ricolinostat inhibits histone deacetylases, reducing NET formation and inflammation.
Researchers have discovered a more effective treatment for children with Kawasaki disease and multisystem inflammatory syndrome in children (MIS-C), a rare COVID-19 reaction. The new therapy, infliximab, reduces fever duration, hospitalizations, and anemia compared to standard IVIG treatment.
A new study suggests that a novel treatment involving the administration of an enzyme that degrades neutrophil nets may prevent brain swelling and improve waste clearance in rats with bacterial meningitis. The treatment could be combined with antibiotics if needed.
A Harvard study found that massage therapy using mechanotherapy rapidly clears immune cells from severely injured muscles, enhancing regeneration. The treatment also removed inflammatory cytokines, leading to greater repair and strength recovery in injured muscles.
A new study from Karolinska Institutet in Sweden found that COVID-19 disease severity is linked to the characteristics of white blood cells called granulocytes. Combined measurements of granulocyte characteristics and widely used biomarkers can predict key clinical features such as respiratory function and multiorgan failure.
Researchers at Osaka University found that E-NTPD8 regulates luminal ATP levels, which affects immune cells and promotes inflammation in colitis. Depletion of neutrophils improved symptoms, highlighting the enzyme's role in preventing severe colitis.
Researchers at Vanderbilt University Medical Center have identified a new antibacterial mechanism where immune cells cooperate to capture and 'eat' bacteria. This cooperation enhances the killing power of macrophages, increasing phagocytosis of bacterial pathogens, including antibiotic-resistant staph
A recent study by researchers at the University of Helsinki found that low-density granulocytes (LDG) play a significant role in weakening the immune response in covid-19 patients. The study revealed that LDGs inhibit T lymphocyte division, leading to suppressed adaptive immunity against the virus.
A new USC study found that males are more susceptible to sepsis due to high degranulation activity, while females exhibit more NETosis, which can contribute to autoimmune disorders. The study highlights the importance of considering sex and age as predictors for immune response in personalized medicine.
A new study has identified key pathways linking high-fat diets to atherosclerosis in mice, shedding light on the role of neutrophils and citrullination in inflammation. Researchers found that blocking this process could lead to reduced neutrophil adhesion and potentially prevent blocked arteries.
Researchers from UNIGE and Harvard Medical School have discovered the difference between desired immune responses targeting cancer cells and unwanted responses affecting healthy tissue. By understanding these differences, they aim to develop new therapeutic approaches that minimize toxic side effects and maximize treatment efficacy.
A study at Lund University found that a drug treating sputum viscosity and inflammation in cystic fibrosis patients also dissolved neutrophil extracellular traps (NETs) in severely ill COVID-19 patients. NETs were reduced after treatment, leading to improved oxygen therapy dependency and reduced viral load.
Neutrophils use an internal start-stop system to balance search and destroy phases for efficient pathogen elimination. This system helps prevent excessive inflammation and tissue damage. The study provides new insights into neutrophil biology, essential for immune host defense against bacteria.
A Virginia Tech research team has identified a protein called NapA associated with peptidoglycan, a lingering cell wall component of the Lyme disease-causing bacterium Borrelia burgdorferi. The protein plays an amplifying role in causing inflammation by acting as a molecular beacon that antagonizes the immune system.
Researchers discovered that glucose metabolism in tumor-associated neutrophils determines their tumor-supportive behavior in lung cancer development. Removing Glut1 from these cells reduces tumor growth rate but increases radiotherapy efficacy.
Researchers found that a combination of an immune receptor blocker and an antiviral agent improves survival in mice infected with lethal influenza. The treatment reduces lung pathology in swine-influenza-infected piglets, providing insights into optimal timing of treatment to prevent acute lung injury.
A team of scientists discovered that mast cells orchestrate the recruitment of neutrophils through a molecular mechanism involving tumor necrosis factor. Mast cells position themselves around blood vessels and release TNF, which activates surface proteins on neutrophils, allowing them to migrate into tissues.
Scientists have discovered a link between nicotine and the spread of breast cancer cells into the lungs, which can lower survival rates by 33%. Nicotine exposure creates an environment ripe for metastatic growth, attracting immune cells that promote tumor growth.
Research found that ginger's 6-gingerol lowers autoantibody production and helps halt disease progression in mice with antiphospholipid syndrome and lupus. The compound prevents neutrophil extracellular trap release, triggering autoantibodies and inflammation.
Researchers analyzed five cases of patients with COVID-19 who experienced severe cardiac manifestations, including ST-elevated myocardial infarction (STEMI). NETs were found to form in coronary thrombuses, causing blockage of microvessels and contributing to the development of heart attacks.
Scientists at La Jolla Institute for Immunology have found elongated neutrophil-derived structures (ENDS) in the blood of septic patients, which break off from immune cells and change shape as they course through the body. ENDS are 100-fold more detectable in sepsis patients than healthy individuals.
Researchers identify neutrophils as potential culprits for psoriasis inflammation and keratinization, offering new directions for developing novel therapeutic approaches. The study provides mechanistic insights into the involvement of neutrophils in psoriasis pathogenesis.
Researchers demonstrate that trained neutrophil granulocytes can inhibit tumour growth and increase the chances for treatment in certain patients. The training process involves administering beta-glucan, which alters gene activity in precursor cells, leading to long-term effects.
An international team led by George Hajishengallis showed that training the innate immune system with β-glucan can inspire neutrophils to target tumors. The study found that trained immunity can be transferred through bone marrow transplants, leading to improved tumor-fighting ability.
Researchers at Ohio State and the University of Michigan discovered a new type of immune cell that rescues damaged nerve cells from death and partially reverses nerve fiber damage. The unique cell subset promotes nervous system repair and has been identified in human immune cells with similar characteristics.
Researchers at CNIC found that neutrophils acquire new characteristics when they arrive in a tissue and aid in maintaining organ health. This discovery suggests possible new treatments for diseases, including cancer, by leveraging the immune system's plasticity.
A multidisciplinary team at Massachusetts General Hospital developed a novel treatment strategy for a young woman with an immune system defect. The treatment involved boosting her weakened neutrophils with growth factors, which restored their function and improved control of pathogens.
A team of scientists at the University of Toronto has discovered the mechanism linking periodontal disease to other inflammatory conditions. The study found that neutrophil immune cell activity is the key factor connecting gum disease to heart disease, cancer, and other inflammatory conditions.
A study by CNIC scientists reveals metoprolol's ability to protect the heart during a heart attack is not shared by other beta-blockers. This unique property limits inflammatory damage and hyperactivation of neutrophils, which can cause significant additional injury to the heart.
A recent study published in Nature Immunology describes the crucial role of neutrophils in boosting the immune response against viral infections. By sacrificing themselves, these cells release essential molecules that help activate specialized T cells to target and destroy infected cells.
Researchers identified key markers that can pinpoint patients at risk of severe COVID-19, associating neutrophil cells and glucocorticoid receptors with disease severity. This finding could lead to personalized treatment approaches for patients with reduced glucocorticoid receptor expression.
Researchers developed a non-invasive method to sample cells from wounds using discarded bandages, revealing higher levels of neutrophils in chronic wounds. This technique could help develop targeted therapies to promote healing and predict wound outcomes.
Studies published in the Journal of Experimental Medicine found that sticky webs of DNA released from immune cells cause much of the tissue damage associated with severe COVID-19. Blocking the release of these DNA webs could be a new therapeutic target for managing severe forms of the disease.
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.
Scientists at La Jolla Institute for Immunology have tracked down the rare stem cells that generate neutrophils in human bone marrow, offering a potential path for intervening in diseases where neutrophil development goes awry. This research may also provide clues to COVID-19 and cancer drug targets.