Articles tagged with Macrophages
Researchers have successfully engineered human immune cells to model an infection common among immunocompromised people, paving the way for new drug testing and treatments. The immune cell type created played a key role in infection, inflammation, and regeneration, but also served as a natural host for germs.
Buck scientists introduce mechanoimmunology, a new discipline that explores the role of physical forces in immune cell responses. The study reveals that mechanical cues tune immune cell behavior, potentially leading to new treatments for various disorders.
Researchers identified toll-like receptor (TLR) signaling as a novel pathway regulating GLI3 expression, which plays a role in inflammatory cytokine production and cancer. They found that IRF3 directly binds to the GLI3 promoter region, increasing its expression upon TLR4 stimulation.
Researchers have developed an immunity-boosting postoperative treatment that could prevent glioblastoma relapse by targeting cancer stem cells with nanoparticles. The injectable gel promotes the cancer-killing immune response and reduces toxic side effects.
A new study led by Tokyo University of Science researchers identifies altered gene expression and cell function changes that drive DNA damage and neoplasia in cholangiocytes exposed to 1,2-dichloropropane. The findings highlight the importance of macrophage involvement in carcinogenesis.
Researchers from the Max Planck Institute of Immunobiology and Epigenetics have identified a novel anti-bacterial pathway involving the inter-organellar crosstalk between phago-lysosomes and mitochondria. This pathway, mediated by TFEB, inhibits Salmonella growth in macrophages.
A multi-site trial found OP-101 to be effective in reducing inflammatory markers and markers of neurological injury, with improved outcomes for patients. The study showed a significant reduction in the composite outcome of mechanical ventilation or death at 30 and 60 days after treatment.
A team led by Dr. Johan Duchêne investigated commercial antibodies against ACKR1, refuting a previous study that claimed its expression on macrophages and monocytes. The study emphasizes the significance of antibody specificity and demonstrates the importance of publishing corrections in scientific research.
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.
A MedUni Vienna study team has identified a specific subtype of macrophages as a protective function against fibrosis in non-alcoholic fatty liver disease. TREM2-positive macrophages have been shown to prevent fat accumulation, inflammatory processes and progression to liver fibrosis.
A recent review article highlights the crucial role of macrophages in the progression from acute kidney injury (AKI) to chronic kidney disease (CKD). The study suggests that targeting specific signaling pathways and altering macrophage activation can prevent renal fibrosis and CKD. Therapeutic strategies such as clodronate liposomes an...
Scientists at CNIC discovered a complex network between liver tissue connections that allows the liver to regulate body temperature. The secretion of IL-12 by liver-infiltrating macrophages blocks FGF21 production, reducing heat generation by brown fat in mice.
Researchers at Karolinska Institutet have successfully repurposed a cancer drug to target neuroinflammatory diseases like multiple sclerosis. A novel drug carrier was developed to deliver the treatment specifically to microglia, reducing inflammation and disease progression.
A new study found that crown-like structures surrounding breast tumors in overweight and obese patients can hinder their response to therapy. Researchers identified a potential molecular biomarker, CD32B, which is associated with poorer treatment outcomes.
A study published in Nature Communications reveals that the type of macrophage present in a person's body may determine how likely they are to develop severe inflammation in response to COVID-19. The research found that an aggressive subset of macrophages, known as M1 macrophages, can cause a cascade of events leading to multi-organ fa...
A study by Kyushu University researchers has analyzed the development and genetic profile of a set of cells that construct the brain's immune system. The findings reveal that meningeal macrophages develop in the same way as other microglia, but perivascular macrophages originate from meningeal macrophages after birth.
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.
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 at Case Western Reserve University discovered that altering macrophage metabolism influences their relationship with T cells, suppressing tumor growth and reducing overall tumor size. The study found PERK protein's involvement in key metabolic pathways and identified a potential clinical drug inhibitor to target it.
A new biodegradable gel has been developed to improve the immune system's ability to combat cancer. The gel releases drugs and special antibodies that target tumor cells, slowing their growth and increasing the lifespan of mice. This breakthrough could lead to new clinical trials for human patients in the coming years.
A study led by Boston Children's Hospital researchers found that COVID-19 causes severe inflammation through infected immune cells. Antibodies developed during infection may sometimes contribute to inflammation.
Scientists create nanoparticles coated in mannose to block production of scar-promoting protein in lung cells. The treatment holds promise for preventing severe lung scarring disease.
Researchers found that pancreatic cancer cells trigger the breakdown of collagen proteins, which increases arginine levels and signals stellate cells to build fibrotic meshes around tumors. This process, known as desmoplasia, creates a dense environment that promotes aggressive growth and blocks access to therapies.
A new study by Princeton University researchers reveals that macrophages, a type of immune cell, are crucial in the early immune response to SARS-CoV-2. The study used humanized mice with human lung tissue and blood stem cells to investigate the role of macrophages and identified specific genes associated with an effective antiviral re...
Researchers at Hiroshima University discovered that pathogenic mycobacteria, such as Mycobacterium tuberculosis, attach to and multiply within human red blood cells. This interaction may play a role in the spread of lung diseases like tuberculosis.
Researchers at UConn Health found that deleting TRPM2 from macrophages in mice reduced atherosclerosis by inhibiting the TRPM2–CD36 inflammatory axis. This approach prevented foamy macrophages and alleviated inflammation in arteries.
Researchers have identified a new mechanism of action for extracellular vesicles in the development and progression of lymphomas. sPLA2 secreted by tumor-associated macrophages degrades EV-derived phospholipids, enhancing EV function and inducing vital phenomena. This discovery may lead to new drug targets for cancer treatment.
Researchers develop novel therapeutic approach for treating tuberculosis using phosphatase inhibitors, offering potential benefits for TB research and basic biology exploration. The discovery provides a promising alternative to traditional antibiotic-based treatments and has significant implications for combating antimicrobial resistance.
Researchers at the University of Illinois created quantum dots to visualize macrophages in fat tissue, shedding light on chronic inflammation's role in diseases. The new technology enables accurate cell counting and tracking over time, offering a potential diagnostic tool for insulin resistance and metabolic syndrome.
A new study from Karolinska Institutet and Helmholtz Center Munich found that macrophages show altered inflammatory and metabolic expression several months after mild COVID-19. Even though most individuals were symptom-free, their immune systems were more sensitive than those of healthy counterparts.
A biodegradable nanoparticle has shown promise in reducing skin and lung scarring in mice with scleroderma. The treatment targets specific immune cells responsible for the disease's chronic inflammation and scarring.
Scientists have discovered a new therapeutic approach to aid the immune system in fighting cancer, offering hope for better solutions for patients. Researchers found that blocking the EP4 molecule can 'free' the immune system and restore its cancer-fighting functions.
The study defines the lung macrophage as a major target of IL-9, which promotes allergic lung inflammation. The researchers found a correlation between IL-9 and the diagnosis of asthma in patients, suggesting a potential therapeutic approach for treatment.
Codiak BioSciences' exoASO-STAT6 demonstrates potent anti-tumor efficacy by reprogramming tumor-associated macrophages to an M1 phenotype, showing promise as a monotherapy candidate for hepatocellular carcinomas and other cancers. The company plans to initiate Phase 1 clinical trials in the first half of 2022.
Research at Rensselaer Polytechnic Institute found that the circadian system influences the immune cells' clearance of Amyloid-Beta 42, a key protein linked to Alzheimer's disease. Boosting daily oscillations could increase clearance and prevent brain damage.
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.
A Toronto study found that certain probiotic bacteria can alter the function of immune cells and spur cancer growth in pancreatic cancer. Deletion or inhibition of a key protein enabled better treatment sensitivity and more inflammatory T cells, while activation thwarted these effects.
Scientists sequenced the gene expression profiles of more than 170,000 individual cells to shed light on a key mystery: the role of Type I Interferons (IFN) during viral infections. The study reveals interferon plays a crucial role in clearing the virus by alerting immune cells, such as macrophages, to search and destroy infected cells.
Researchers have discovered a new method to predict heart attacks by analyzing the gene expression of foamy macrophages, revealing a person's cardiovascular health. The study found that foamy cells can be both beneficial and detrimental depending on their behavior in individuals with certain conditions.
Scientists at UC Riverside and UCLA have engineered nanoparticles to serve as 'molecular traps' that bind to SARS-CoV-2, preventing it from attacking macrophages and inducing inflammation. The findings suggest potential therapeutic strategies for treating COVID-19-associated diseases.
A study by Michigan Medicine researchers found that people with diabetes have more macrophages in their fat tissue, particularly the anti-inflammatory CD206+ subtype. This subtype is unique in terms of gene expression and may play a role in the development of diabetes.
Researchers found that macrophages feed on lactic acid produced by cancer cells, paralyzing killer immune cells and weakening tumour immunity. This discovery highlights the need to curb lactic acid production in tumours to improve immunotherapy outcomes.
Researchers at La Jolla Institute for Immunology found that macrophages in artery walls can sense octanal, leading to inflammation and atherosclerosis. By blocking this detection, they reversed disease progression. Further research is needed to explore the role of olfactory receptors in cardiovascular diseases.
Researchers from Karolinska Institutet have discovered that lung macrophages develop in two different ways, with fetal precursor cells dividing faster to remove microorganisms early on. The study's findings can help limit organ damage and promote new treatments for lung diseases.
A study reveals a powerful subset of vascular macrophages expressing CLEC4A2 fosters 'good' macrophage behavior, limiting plaque build-up. This discovery challenges the widely held belief that macrophages only play a harmful role in cardiovascular disease.
The first-in-human trial of CAR-M cell therapy demonstrated that engineered macrophages can target and alter the solid tumor microenvironment, altering the composition of myeloid cells and T-cells. This innovative immunotherapy offers a promising new strategy in the fight against cancer.
A study by Kanazawa University researchers found that the chemokine CCL3 plays a significant role in inducing inflammation as nonalcoholic fatty liver disease develops. The presence of CCL3 increased liver macrophage accumulation, leading to liver inflammation and scarring.
Researchers discovered that wound macrophages undergo different metabolic programs to coordinate tissue repair, including the use of reactive oxygen radicals for blood vessel growth. Macrophages also utilize a different type of mitochondrial exchange for anti-inflammatory and reparative functions in late-stage wound healing.
Researchers found that macrophages play a central role in COVID-19-related respiratory failure, leading to fibroproliferative ARDS and prolonged ventilation. Extensive tissue damage and scar tissue formation are characteristic of severe lung failure.
Researchers at Saarland University have discovered that the lipid and cholesterol metabolism of immune cells collaborating with tumour cells is severely compromised compared to tumour tissue. This finding suggests a possible explanation for why cholesterol-lowering drugs are ineffective against non-small-cell lung carcinoma.
Researchers at the University of Alabama at Birmingham discovered the mechanism of secretion and trafficking of Mycobacterium tuberculosis' toxin TNT, which kills over 1 million people annually. The ESX-4 type VII secretion system plays a crucial role in transporting TNT across cell membranes.
Researchers found that antihistamines improve responses to immune checkpoint inhibitors in cancer patients, particularly those with pre-existing allergies or high plasma histamine levels. The study suggests targeting the histamine receptor HRH1 may be a useful treatment approach.
New research from RCSI shows that an irregular body clock can drive inflammation in the body's immune cells, leading to chronic diseases like heart disease and diabetes. Macrophages without a body clock take up more glucose and produce inflammatory products.
Cleveland Clinic researchers found that verubecestat, an Alzheimer's disease treatment, reduces glioblastoma progression by reprogramming tumor-associated macrophages into tumor-suppressing macrophages. This transformation leads to increased phagocytosis of tumor cells and reduced tumor growth.
A recent study by James Godwin, Ph.D. has identified the liver as a primary reservoir for pro-regenerative macrophages essential to limb regeneration in axolotls. The research paves the way for regenerative medicine therapies in humans, potentially treating diseases like heart and lung disease with scar-free healing.
Scientists at the University of Southampton have created nanoparticles that can target and kill deadly bacteria hiding in human cells. The breakthrough could lead to a new treatment method using injectable or inhalation-based antibiotic-laden capsules, potentially saving thousands of lives annually.
A new study led by University of Minnesota Medical School researcher Xavier Revelo found that macrophages play a role in protecting the heart after injury. The research team discovered a large increase in cardiac macrophages early in response to a cardiac injury similar to high blood pressure.
Researchers discovered that altering macrophage metabolism helps prevent overloading and resolves inflammation by protecting mitochondria from strain. This process enables efficient removal of damaged cells, a key factor in resolving inflammation.
A study by Massachusetts General Hospital researchers has identified specific drugs that can selectively block the polarization of M2-type macrophages, which exacerbate diseases such as wet age-related macular degeneration. The findings suggest that these drugs could be repurposed for new therapies to influence disease outcomes.
Researchers at Trinity College Dublin have identified a new molecule called 4-OI that can limit the production of prostaglandins from macrophages. This discovery could lead to the development of new anti-inflammatory compounds for treating diseases such as COVID-19 and sleeping sickness.