Articles tagged with Macrophages
Whitehead Institute researchers uncover a novel association between dectin-1 and galectin-3 in macrophages, enabling the immune system to discriminate between non-pathogenic and pathogenic fungi. This discovery may lead to the development of more effective antifungal drugs.
Researchers have uncovered a crucial survival response in the body's immune system to deadly anthrax infections. The study found that a key signaling molecule ATP is released from infected macrophages to alert other immune cells, triggering a complex pathway to combat the bacteria.
Researchers at Case Western Reserve University discovered a genetic factor that regulates obesity-induced inflammation contributing to chronic health problems. By controlling levels of Kruppel-like factor 4 (KLF4) in macrophages, they may develop a novel treatment for obesity and its complications such as diabetes and heart disease.
Researchers found that adult stem cells from the human nose can repair damaged brain tissue, while a cancer probe made of silica nanoparticles is effective at targeting tumors. Additionally, inhibiting a protein MRP4 could provide a new way to treat pulmonary hypertension.
Researchers found that cytoskeletal components regulate CD36 protein movement on the cell surface, promoting receptor clustering. This study may lead to a better understanding of receptor organization and its impact on cell signaling, which could aid in the development of new drugs.
A new study has found that macrophages have a seven-cell uptake threshold, governing the healing process. The researchers also discovered substances informing cells on tissue repair rates and accelerating macrophage transition to immune organs.
Scientists have discovered that HIV uses the molecule rNTP to replicate inside macrophages, allowing it to evade the immune system. By targeting this molecule, researchers may be able to develop new drugs to stop the virus in its hiding spot within the human immune system.
Researchers at Imperial College London have identified a protein called IRF5 that acts as a molecular switch controlling whether macrophages promote or inhibit inflammation. Blocking IRF5 production may treat autoimmune diseases like rheumatoid arthritis and inflammatory bowel disease.
Immune cells called macrophages infiltrate mouse retina after eye injury and dampen inflammation, protecting retinal ganglion cells from death. Macrophage arrival also awakens dormant neural progenitor cells.
A new study shows that protein HRG activates specific immune cells to inhibit tumor growth and metastasis. HRG enhances chemotherapy effects and transforms inflammatory cells from promoting to inhibiting tumor growth.
Scientists at Virginia Tech have discovered key molecular events in the immune system that contribute to inflammatory bowel disease. The study identifies peroxisome proliferator-activated receptor-gamma as a crucial regulator of inflammation and offers potential targets for repurposed drugs and naturally occurring compounds.
Researchers have described the first functioning 'lipidome' of a mouse macrophage, a white blood cell, providing new insights into how lipids interact and change over time in response to bacterial stimuli. The study sheds light on the crucial role of lipid molecules in inflammation and disease.
A study published in Cell Metabolism found that a protein called Angiopoietin-like protein 4 (Angptl4) protects against the severe inflammatory response caused by high levels of saturated fat. Mice deficient in this protein showed massive lymph node expansion and died after consuming a diet high in saturated fats.
Scientists identify specific receptors, TLR-2 and dectin-1, that can be targeted to stop damage while promoting nerve cell growth after a spinal cord injury. An experimental compound was found to activate the TLR-2 receptor alone, enhancing axon growth without causing cell death.
Researchers discovered that FoxO1, a multi-tasking protein, promotes an inflammatory response in macrophages, leading to insulin resistance and diabetes. Conversely, it generates a negative feedback loop to limit damage from excessive inflammation.
Researchers discovered that Maf protein promotes osteoblast differentiation in mice, reducing bone formation and increasing fat cell generation with age. Additionally, studies found defective immune cells in patients with type 1 diabetes and suggested these cells could be a viable target for treatment.
Researchers at UC San Diego School of Medicine identified a molecular mechanism making omega-3 fatty acids effective against chronic inflammation and insulin resistance in diabetes. Omega-3 fatty acids activate GPR120 receptor on macrophages, resulting in anti-inflammatory effects and improved insulin sensitivity.
Researchers at the University of Alberta have discovered a crucial mechanism for fighting infections, revealing that an amino acid called arginine is essential for immune function. The study's findings could have significant implications for people in third world countries with limited access to nutrition.
A team of UC San Diego researchers has created a novel map of lipid locations in a single cell, providing insights into how lipids influence disease processes. The study identified over 220 individual molecular lipid species and found that numerous lipids change in abundance once a macrophage becomes active.
Researchers found that sulfasalazine enhances the body's ability to clear fungal debris from the lungs, reducing inflammation and promoting better lung function. The study offers a new avenue for research on Pneumocystis pneumonia and may lead to improved treatment options for patients with weakened immune systems.
A new study published in the Journal of Leukocyte Biology suggests that simvastatin impairs immune cells' ability to kill pathogens and enhances inflammation. Researchers found that simvastatin also increases cytokine production, which triggers and sustains inflammation.
Researchers at Johns Hopkins Medicine have identified a key protein, TRPV2, that plays a crucial role in helping macrophages capture and destroy germs. The protein helps macrophages bind to bacteria more effectively, which enables the immune system to clear infections more efficiently.
Researchers at Gladstone Institute of Cardiovascular Disease discovered that DGAT1, an enzyme involved in fat storage, protects against diet-induced inflammation and insulin resistance. Enhancing DGAT1's capacity in macrophages may hold therapeutic promise for preventing obesity-related diseases.
Researchers have made significant progress in understanding the relationship between cholesterol and heart disease, finding that it's not just one factor at play but rather a complex interplay of immune cells and proteins. The study highlights the importance of restoring the balance of this network to prevent vascular disease.
Researchers identify potential new targets for preventing early loss of transplanted pancreatic islets, which could improve the efficiency of pancreatic islet transplantation. Meanwhile, studies show that engineering macrophages to store triacylglycerol protects mice from diet-induced insulin resistance and inflammation.
Aged mice treated with a macrophage-specific growth factor exhibit enhanced resistance to bacterial infection, indicating potential therapeutic strategies for healthy aging. The study's findings provide insight into the underlying immune dysfunction contributing to age-related increased susceptibility to infections.
Researchers have identified a new therapeutic approach for proliferative crescentic disease, a type of advanced kidney disease associated with lupus. The study suggests targeting macrophages and growth factors involved in the disease mechanism.
Researchers found that tumor-associated macrophages produce high levels of proteases cathepsin B and S, enhancing tumor growth and invasion. Interleukin-4 stimulation by tumors stimulates increased Cts B and S activity, providing a potential therapeutic target.
Researchers found that macrophages along the blood-brain barrier can either activate the brain's stress response machinery or prevent excessive inflammation. This discovery may pave the way for novel therapies for neurodegenerative diseases.
Researchers found that tubercle formation is a critical step in TB infection, and that epithelial cells produce MMP9 enzyme to recruit macrophages. Blocking this pathway may lead to new therapies for TB and other inflammatory conditions.
A new study suggests that a damaging inflammatory response following spinal cord injury can prevent healing and promote chronic pain. Anti-inflammatory macrophages, which are typically involved in later stages of injury repair, were found to promote effective growth of axons but disappear shortly after an injury.
Researchers at Stanford University School of Medicine have identified a cellular mechanism that causes lupus-like symptoms in mice. The study found that macrophages play a crucial role in disposing of dying cells, and a specific molecule called PPAR-delta helps regulate this process.
Researchers have uncovered the genetic switch that controls macrophage polarization, essential for muscles to regenerate properly. Macrophage polarization allows them to shift from clearing debris to promoting repair in damaged areas.
Researchers have identified new targets for treating breast cancer metastasis by inhibiting Brk protein expression. Additionally, a study on Wnk1 revealed its critical role in angiogenesis and heart development. Furthermore, drug abuse has been found to worsen HIV-associated neurocognitive disorders through dopamine signaling.
A study found that diabetics with low vitamin D levels can't process cholesterol normally, leading to increased blood vessel buildup and heart attack risk. Increasing vitamin D levels may slow or reverse atherosclerosis development, researchers suggest.
A new study published in PLOS Pathogens shows that Leishmania parasites use a gel to persuade immune cells called macrophages to feed them instead of killing them. This trick enables the parasites to establish an infection and infect the skin, highlighting a crucial step in leishmaniasis transmission.
Researchers at Albert Einstein College of Medicine have identified a distinct population of macrophages that may promote metastatic cancer growth. The study suggests that targeting these cells could inhibit tumor growth and potentially reduce cancer mortality.
Researchers at EMBL and University of Heidelberg create fluorescent probe to quantify MMP12 activity in macrophages, allowing study of emphysema development. The test has potential as biomarker for disease evolution and therapeutic intervention monitoring.
Research reveals that blood-derived macrophages with interleukin-10 expression have an anti-inflammatory effect on spinal cord injuries. This finding suggests that these cells may contribute to the recovery process after injury.
A subset of infiltrating monocyte-derived macrophages, expressing interleukin-10, exhibits an anti-inflammatory role in spinal cord injuries. This suggests that these cells may have a beneficial effect on recovery from such injuries.
Researchers have discovered a protein on the surface of leukemia stem cells that helps them evade macrophage immune cells. Targeting this protein, called CD47, may help increase the body's appetite for killing cancer cells.
Researchers at Stanford University Medical School have discovered that leukemia stem cells can escape detection by co-opting a protective molecular badge used by normal blood stem cells. The molecule, CD47, protects the leukemia stem cells from macrophages, allowing them to evade the immune system. Studies found that patients with high...
Researchers found that almost all HIV virus was packed into macrophages in diseased cells, which are immune cells that 'eat' invading disease agents. This discovery could lead to new treatments by targeting these infected macrophages.
Scientists find novel salt storage site in the skin and a gene regulator controlling blood pressure regulation. A high-salt diet leads to increased lymphatic vessels, but the process behind this storage and its relevance to human disease are not yet fully understood.
Researchers at UMass Chan Medical School describe a potent method to deliver therapeutic siRNA molecules orally, silencing genes in mice and showing promise for treating human diseases. The method uses yeast particles as a delivery shell, targeting specific cells and achieving gene silencing with minimal immune response.
Researchers found that macrophages focus reactive oxygen species (ROS) on targets outside the cytoplasm to kill bacteria. The study shows that superoxide dismutases in bacterial periplasm protect bacteria from ROS, suggesting a new mechanism for macrophage-bacteria interaction.
Researchers found that HAART contributes to pulmonary hypertension in HIV-infected patients by impairing blood vessel-lining endothelial cell function. A novel treatment for chronic hypoxic pulmonary hypertension (PHTN) involves neprilysin, which protects against PHTN by regulating neural signaling molecules.
Research found that Helicobacter pylori can multiply in autophagic vesicles within macrophages, increasing resistance to antibiotics and evading the immune system. This discovery has significant implications for understanding the life cycle of H. pylori and potential new drug targets.
Researchers at Vanderbilt University Medical Center have identified prostaglandin-E2 receptors as crucial players in atherosclerosis development. Mice with impaired EP4 receptors showed reduced atherosclerosis and increased macrophage programmed cell death, highlighting the importance of these signaling pathways in disease progression.
Researchers have developed a mouse model of neonatal diabetes that replicates human disease, providing new insight into the condition. Additionally, studies have identified a link between endothelial dysfunction and altered metabolic responses, particularly in relation to high-fat diets and glucose regulation.
The journal Cold Spring Harbor Protocols presents two articles detailing experimental culture methods for cells from the immune system and the nervous system. These protocols enable researchers to isolate and grow specialized cells like macrophages and cerebellar granule neurons, facilitating studies on their functions and interactions.
Researchers found that Mycobacterium tuberculosis uses foamy macrophage formation to survive in infected individuals. These 'foamy' cells provide a nutrient-rich reservoir for the bacteria, allowing it to persist in a dormant state.
A proteomics study has identified new proteins that facilitate communication between the immune system and the self-cleaning process, potentially leading to new treatments for tuberculosis. The research found that autophagy plays a crucial role in immune response, particularly against intracellular pathogens.
St. Jude researchers discover how intracellular pathogens use biochemical machinery to block nitric oxide production, a key chemical weapon against them. The findings offer hints for fighting bacteria and suggest the development of targeted drugs to inhibit such diseases as tuberculosis and toxoplasmosis.
Researchers found a protein called TREM-2 in the spinal fluid of MS patients, suggesting it may be contributing to the disease. The protein's presence could lead to new pharmaceutical targets for MS prevention and treatment.
Researchers identified A2BAR as a potential therapeutic target for acute lung injury, which spontaneously resolves in some individuals. Additionally, human immune cells' secreted proteins enhance the clearance of bacteria by other immune cells, offering a new mechanism for bacterial infections.
Scientists have discovered a previously unknown molecular signaling pathway in body fat cells that normally acts to suppress harmful inflammation, but is overridden by obesity. The protective function can be boosted with drugs targeting PPAR-d, potentially treating insulin resistance and diabetes.
Researchers found that interrupting a signaling pathway in immune system cells opened the possibility of a new strategy against Alzheimer's disease. Immune cells from outside the brain devoured plaque deposits, reducing their numbers by up to 90 percent.
A team of scientists discovered that Vpx protein enables the AIDS virus to reproduce by facilitating reverse transcription in the simian virus life-cycle. The findings are significant as they suggest potential new strategies to prevent replication.
New study identifies IKK(beta) protein as key driver of pro-tumor switch in macrophages, which halts production of anti-tumor genes. Inactivating IKK(beta) reprograms macrophages into tumor killers, attracting professional immune cells to shrink tumors.