Articles tagged with Macrophages
A new study from Trinity College Dublin finds that dexamethasone can reduce inflammation in TB patients while enhancing the function of their macrophages to kill Mycobacterium tuberculosis. The research suggests using steroids as an adjunct therapy in conjunction with existing treatments, particularly in cases with excessive inflammation.
A new study reveals a group of immune cells called efferocytic macrophages (eMacs) in the pancreas that can render T cells inactive, protecting insulin-producing beta cells and preventing Type 1 diabetes. The findings offer hope for new therapies for the chronic autoimmune disease.
Macrophage lysosomes regulate reactive oxygen and nitrogen species production, with pH influencing the balance between killing microbes and avoiding self-harm. The study provides insights into immune regulation using nanoelectrochemical sensors.
A new AI-driven AFM platform accurately identifies macrophage polarization states and distinguishes between M0, M1, and M2 phenotypes. The model successfully validated using flow cytometry data, showing promise for disease diagnostics and therapeutic responses.
A novel drug target, CD300a, has been identified to suppress immune cell activation and prevent chronic heart and kidney failure after acute tissue injury. The treatment preserves cardiac function and reduces renal fibrosis in mice with genetic deficiency of CD300a.
This study reveals that GPNMB modifies the tumor microenvironment by repurposing macrophages into immunosuppressive tumor-associated macrophages. The interaction between GPNMB and Siglec-9 enables this reprogramming, leading to increased cancer cell motility and invasiveness.
Scientists at Trinity College Dublin discovered that electrically stimulating macrophages can shift them into an anti-inflammatory state, promoting faster tissue repair. This breakthrough offers a potentially powerful new therapeutic option for treating inflammation-driven diseases and injuries.
Researchers from The University of Osaka discovered that macrophages can directly engulf and digest damaged mitochondria through a process called microautophagy. This process allows lysosome-like compartments in macrophages to take in broken cell components directly, bypassing the need for digestion.
Senescent macrophages, once thought to be passive bystanders, actively drive tumor development through inflammatory signals and immune suppression. Targeting these cells with senolytics, senomorphics, and senoreverters may offer new possibilities for cancer therapy.
Researchers at the University of Ottawa have made a breakthrough in developing nanoparticles that not only deliver drugs but also contribute to treatment. Their proof-of-concept study shows that particles can be armed with therapeutic potential, revolutionizing the field of nanomedicine.
Researchers discovered a key molecular sensor detecting changes in intracellular pH that regulates immune defense against bacterial infections and influences inflammatory diseases and cancer. The findings may lead to innovative strategies for disease prevention and treatment by altering how the internal environment shapes immune function.
Researchers found that inhibiting the GLUD1 enzyme improves muscle strength and coordination in DMD mouse models, offering a potential therapeutic pathway for treating the disease. The study suggests a promising approach to restore muscle function beyond symptom relief.
Scientists at The University of Texas at Arlington identified a new enzyme, IDO1, that plays a crucial role in inflammation and cholesterol regulation. By blocking this enzyme, macrophages regain their ability to absorb cholesterol, offering a potential new way to prevent heart disease.
Scientists at Nagoya University discovered that dying cancer cells can trigger an inflammatory feedback loop that promotes tumor growth. When macrophages consume dying cancer cells, they produce cytokines that activate growth signals in remaining cancer cells.
Research found that macrophages use two independent pathways to regulate inflammatory and lysosomal responses to toxic particles. The study identified key transcription factors and signaling pathways involved, offering potential therapeutic opportunities to quell inflammation.
A recent study found that ATG5-mediated autophagy in alveolar epithelial cells protects against Pseudomonas infection by preventing inflammation. The mechanism involves the formation of gasdermin D pores, which amplify inflammation through macrophage activation.
Researchers found that osimertinib and immune checkpoint inhibitors activate the IL-6/JAK/STAT3 signaling pathway in liver macrophages, leading to a cytokine storm-like inflammatory response. Introducing JAK inhibitor ruxolitinib successfully dampened this response.
Researchers have discovered a crucial molecular basis for aortic dissection by linking endothelial dysfunction with immune infiltration. The study reveals that abnormalities in vascular endothelial cells facilitate the accumulation of inflammatory cells, leading to fatal rupture.
The foundation recognizes five early-career scientists who apply computational methods to cancer research, with a focus on developing new protein designs and understanding chromatin modifications. Their work aims to improve treatment strategies and precision oncology for various cancers.
A recent study found that C5aR1 inhibition can slow endometriosis progression by altering the behavior of immune cells. Researchers used PMX-53 to block the C5aR1 receptor, reducing macrophages with an M2 phenotype and promoting an M1 state.
A recent study reveals that dimethyl fumarate (DMF) can prevent and alleviate periodontal tissue damage by promoting anti-inflammatory macrophages and restoring mitochondrial health. DMF achieves this through regulation of Tu translation elongation factor (TUFM), a protein critical to mitochondrial function.
Researchers develop a novel self-assembling prodrug, LDO, that targets glycolysis and STING signaling to alleviate inflammation and improve survival in sepsis animal models. LDO reprograms macrophage polarization, reducing cytokine storms and acute lung injury.
A new NYU Langone Health study found that lung immune cell type nerve and airway-associated interstitial macrophages (NAMs) play a critical role in regulating inflammation during SARS-CoV-2 infection. NAMs promote disease tolerance by restraining the immune response, leading to better survival rates among infected mice.
Researchers from the International Institute of Molecular and Cell Biology in Warsaw discovered a crucial role of enzyme TENT5A in extending poly(A) tails of therapeutic mRNA molecules, making them more stable and effective. Macrophages play a key role in vaccine effectiveness, capturing and neutralizing 'intruders' after administration.
Researchers have shed light on how a new type of antibody treatment works against ovarian cancer by reactivating patients' immune cells. The study shows that MOv18 IgE reverses the suppression of immune cells and induces them to kill cancer cells, providing new insights into this therapy.
Researchers utilized machine learning models to identify key surface attributes modulating immune response, paving the way for improved implant materials. The study revealed pivotal factors regulating cytokine secretion and offered insights into designing alloys with optimized immunoregulatory functions.
Researchers found that inhibiting S1pr3 reduces pulmonary fibrosis by reducing M2 macrophage polarization. S1pr3 inhibitors were also effective in ameliorating fibrosis in mice, suggesting a potential therapeutic strategy for humans.
Researchers have discovered a previously unknown mechanism of liver regeneration triggered by glutamate, which accelerates liver regeneration in minutes through changes in macrophage metabolism. Hepatocytes producing glutamine synthetase play a key role in this process.
Researchers explore using tiny exosomes to deliver non-coding RNAs to macrophages, steering them toward the healing M2 state and promoting tissue regeneration. This approach offers a promising new way to treat ischemic diseases by addressing their root causes.
Researchers identify SPP1+ macrophages as critical in CRC development and metastasis, promoting EMT, hypoxia, glycolysis, and immunosuppression. Preoperative chemotherapy reduces SPP1 expression, highlighting a potential role in immunotherapy.
Researchers have discovered how severe COVID-19 can destroy immune cells' ability to repair the lungs, leading to lingering effects of long COVID. By enhancing damaged organelles using a FDA-approved drug, they found improved lung healing and reduced inflammation.
A novel population of bladder-resident macrophages, suPVMs, prevents hematogenous dissemination of uropathogens by releasing macrophage extracellular traps (METs). suPVMs form a bladder-blood immune barrier, preventing bacterial invasion into deeper bladder tissues and facilitating neutrophil infiltration.
Researchers investigated the wound healing efficacy and macrophage polarization potential of electrospun PCL scaffolds loaded with BMSC-ABs. The study found that the BMSC-AB-loaded PCL scaffolds drive macrophage polarization to the M2 phenotype, promoting anti-inflammatory and angiogenic effects.
A recent study in Nature Communications reveals that white blood cells employ a novel mechanism to dislodge bacteria from human tissues using brute force and integrin-based adhesion rings. The research, led by Xuefeng Wang, has significant implications for understanding the role of macrophages in cleaning up environmental pollutants.
Macrophages expressing high Spp1 levels are found in emphysema patients and those exposed to cigarette smoke or soot-like particles. This study highlights Spp1 as a crucial mediator of environmental particle pollution-related COPD development, offering potential preventive targets.
Finnish researchers found pituitary macrophages regulate hormonal balance and may be used to treat endocrine disorders. Macrophages have a local effect on hormone secretion, decreasing when removed.
Macrophages may help prevent peripheral neuropathy by slowing its onset and reducing damage. Researchers discovered that these immune cells produce chemokines to recruit other macrophages, which protect against sensory axon loss.
A new Northwestern Medicine study reveals that macrophages in newborns use a process called efferocytosis to produce thromboxane, which triggers the production of a bioactive lipid that signals heart muscle cells to divide and regenerate. This process is less effective in adults, leading to scar-tissue buildup and often heart failure.
Researchers investigate how sex-specific immune responses affect disease outcomes in obesity and helminth infections, aiming to develop new treatments for metabolic disorders and parasitic infections. The study focuses on macrophage-eosinophil interactions and the role of RELMalpha protein.
A new study has identified macrophage activity as a key predictor of which skin cancer patients are most likely to respond to immunotherapy. The findings aim to improve personalized medicine for cancer patients and enable clinicians to select effective treatments, reducing side effects and costs.
A recent study reveals that psychological stress impairs macrophage function, leading to worsened skin allergy symptoms. Stress disrupts the ability of anti-inflammatory macrophages to clear dead cells, allowing eosinophils to infiltrate and exacerbate allergic responses.
Researchers found that previously thought 'pro-fibrotic' macrophages are not solely responsible for fibrosis and instead may contribute to healthy repair. The study aims to understand the triggers behind these differences in expression, with the goal of harnessing macrophages for lung repair.
A study led by Henry J. Pownall and Khurram Nasir found a strong link between the amount of free cholesterol in HDL and its accumulation in macrophages, which can contribute to heart disease. The researchers aim to develop new diagnostics and treatments for managing heart disease using HDL-free cholesterol as a biomarker.
Researchers at Penn State are using ultrasound technology to monitor the transport of genetically engineered, cancer-fighting macrophages into brain tumors. The team aims to enhance the effectiveness of these cells in attacking brain cancer cells by delivering drugs via ultrasound.
Researchers have identified a molecular strategy employed by worm parasites to evade host immune defenses, offering promising solutions for addressing major infectious diseases, allergies, and asthma. By analyzing the unique immune-regulatory properties of helminths, scientists pinpointed key features essential to their activity.
A groundbreaking study reveals that macrophages within muscle spindles actively participate in motor control through fast neurotransmitter-mediated mechanisms. These immune cells help fine-tune muscle contractions, providing essential feedback to the nervous system and optimizing energy use during physical activity.
Researchers found higher levels of CD47 expression linked to more aggressive tumors, immune cells, and oncogenic signaling. Targeting CD47 could lead to improved outcomes with immunotherapy drugs, especially in cases where existing treatments are ineffective.
A new study suggests that berry-flavored vapes can weaken the lungs' natural defences, making it harder for the body to fight off infections. The research adds to growing evidence on how added flavourings in vaping solutions exacerbate dangers.
Researchers from Texas A&M University synthesized research findings to improve medical devices and therapy success rates. The review emphasizes the need to understand macrophage cell behavior to develop targeted immunotherapy treatments.
Researchers at UCLA have identified the protein GPNMB as a critical regulator in the heart's healing process after a heart attack. GPNMB promotes heart repair by binding to receptor GPR39, triggering a cascade of signals that limit scarring and improve cardiac function.
Researchers developed an in vitro model of murine peritoneal macrophage aging to study molecular mechanisms and develop innovative strategies. Chronic treatment with CB3 completely prevented the increase of p21CIP1 and maintained proliferative activity in day 14 macrophages.
Gladstone researchers have identified a complex molecular connection between immune cells and fibroblasts that contributes to fibrosis in the heart, which may lead to new treatments for heart disease and other fibrotic conditions.
Researchers found Itaconate stimulates immune cells to produce anti-viral proteins called interferons by blocking an enzyme called SDH, offering a potential therapy for autoimmune and infectious diseases.
Researchers investigate how liver necroptosis triggers inflammation in both organs, leading to cognitive impairment. Studying aging mouse models, they found that liver necroptosis causes systemic inflammation affecting brain function.
Researchers have made breakthroughs in creating nanoparticles that can modify the immune system to accept transplanted organs without compromising it. This new approach has potential implications for treating diabetes, cell therapy, and autoimmune disorders, offering hope for patients who currently face rejection.
A new study published in PNAS suggests that delivering microparticles containing CCL2 directly to the gums can inhibit bone loss and speed up bone repair in a mouse model of periodontal disease. The therapy modulates the immune response, shifting macrophages from inflammatory M1 type to anti-inflammatory M2 type.
A study found that naldemedine reduces constipation in cancer patients taking opioids, improving quality of life and reducing nausea. After 14 days, 64.6% of naldemedine-treated patients showed no signs of constipation compared to 17.0% in the placebo group.
Researchers propose a better understanding of inflammation in rheumatoid arthritis, identifying an early pathogenic macrophage cell/gene signature that shapes the inflammatory environment. This discovery offers a unique opportunity for early diagnosis and therapeutic intervention, potentially leading to improved patient outcomes.
Researchers found that macrophages produce lipid mediators that promote and suppress inflammation in AKI. The study suggests that MAFB regulates the production of pro-resolving LMs, shifting from a pro-inflammatory to a pro-resolving state.
A new study by the University of Eastern Finland found that pro-inflammatory macrophages can transform prostate cancer cells into stem-like cells, making them resistant to treatment. The study reveals that these immune cells secrete factors that increase the expression of stem cell markers in prostate cancer cells.