Articles tagged with Macrophages
Blocking two key 'don't eat me signals' in cancer cells heightens the immune response and sensitizes tumors to immunotherapy in glioblastoma models. Researchers found that simultaneously blocking CD47 and CD24 improved immunotherapy response, allowing macrophages to better recognize and attack cancer cells.
Recent research from the University of Eastern Finland reveals that pro-inflammatory M1 macrophages accelerate melanoma progression through extracellular vesicle secretion. These vesicles contain inflammatory mediators that activate cancer cells, creating a favourable environment for tumour growth and invasiveness.
A universal 'instruction manual' helps immune cells protect our organs by identifying MafB, a key genetic regulator that enables macrophages to reach full maturity and preserve organ health. This discovery sheds light on how the immune system sustainably protects multiple organs from chronic diseases.
Researchers found that macrophages retain memories of previous infections due to persistent signaling molecules left behind, which can be reversed by blocking cytokine signaling pathways. This discovery suggests new ways to reduce the activity of misprogrammed macrophages contributing to autoimmune diseases.
Researchers found that mice without the ANGPTL4 gene were protected from intestinal inflammation and colon tumors due to altered macrophage behavior. The study suggests that early-life inflammatory events can shape long-term immune programming, providing resistance to future challenges.
Researchers discovered that pairing familiar plant-derived compounds can suppress inflammatory signals more effectively than using each compound independently. The study found that certain combinations increased the anti-inflammatory effect several hundred-fold compared to single ingredients alone.
Cancer cell researchers at the University of Oklahoma have developed a novel 'triangle regulation theory' that explains the development of cancer-induced cachexia and anorexia. The theory reveals how cancer cells recruit immune cells to trigger excess production of growth factor 15, leading to muscle wasting and loss of appetite.
Researchers at UNC-Chapel Hill discovered that chronic inflammation fundamentally alters macrophages, immune cells that drive both inflammation and tissue repair. Chronic inflammation triggers a breakdown in the ability of macrophages to adapt, trapping them in dysfunctional hybrid states.
Researchers developed new chemical probes to track individual enzymes, enabling direct measurement of protein activity and correcting prior limitations. This allows for a clearer picture of molecular logic in cells undergoing programmed cell death, potentially informing drug discovery.
A new study reveals how Parkinson's spreads from the gut to the brain via immune cells, identifying a key role for gut macrophages in transporting toxic proteins. Reducing these cells can slow disease progression and improve motor symptoms in mice.
Researchers at University of Tsukuba discovered a regulatory small RNA, AdiZ, that directly negatively regulates genes involved in glucose uptake and glycolysis. This induction facilitates Salmonella's survival within macrophages by coupling acid resistance to metabolic reprogramming.
Researchers found that PDK4 promotes M1 macrophage polarization, leading to increased inflammation and tissue injury in ACLF. Targeting PDK4 may be a promising strategy to attenuate inflammation and improve clinical outcomes.
Boston College researchers used piezoelectric nanoparticles to trigger macrophages, a key part of the body's immune response. The study suggests that this method could be used to activate immune cells specifically at an infection or tumor site, avoiding side effects associated with systemic administration of drugs.
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 study published in PNAS reveals that peripheral neuropathy can reduce macrophage immune cells' ability to clear dead cells through efferocytosis, leading to chronic pain. Restoring this process may offer a new therapeutic strategy to prevent inflammatory signaling and improve nerve repair.
Two studies reveal that insufficient glutamine in macrophages drives atherosclerosis progression. Researchers identified new ways to detect high-risk plaques using protein markers like TREM2 and SLC7A7, which could lead to PET imaging and blood tests for early detection.
Researchers at the University of Minnesota Medical School identified a key protein called GDF3 that drives inflammatory responses in older adults. The study showed that GDF3 signals through SMAD2/3, inducing permanent changes in the genome and increasing inflammatory cytokines.
Researchers have developed a novel nanomedicine, mPEG@ELA-11, which demonstrates significant potential in treating atherosclerosis by suppressing macrophage foam cell formation and inflammation. The study found that mPEG@ELA-11 reduces atherosclerotic plaque area and necrotic core size compared to free ELA-11.
A new study developed an antibody that blocks several ways TNBC cells survive, grow, and evade the immune system. The antibody suppressed primary tumor growth and reenergized cancer-fighting immune cells, including T-cells and macrophages, in preclinical models.
Muscle stem cells secrete c1qtnf3, which redirects macrophages from immune to regenerative functions, promoting tadpole tail regeneration. This discovery offers insights into the regenerative capabilities of certain animals and paves the way for further research into potential applications in mammals.
Researchers at UC Riverside and City of Hope have developed a novel Pin1 degrading compound that suppresses pancreatic cancer peritoneal metastases. The treatment targets not only cancer cells but also tumor-supporting cells, potentially overcoming treatment resistance.
Arctigenin, a monomer of Fructus Arctii, exhibits anti-inflammatory activity and prevents MASH progression through modulating the NLRP3/GSDMD-N axis in macrophages. ATG administration also reduces hepatic macrophage infiltration, serum enzyme levels, and lipid peroxidation while enhancing antioxidant enzyme activity.
A groundbreaking study in The American Journal of Pathology reveals a perineural pathway that enables HIV-infected immune cells to redistribute throughout the body, sustaining inflammation. The findings highlight the importance of the connection between the central nervous system and peripheral nervous system in immunity.
Researchers identified C-C chemokine ligand 5 (CCL5) as a key player in kidney injury and repair, with the molecule behaving both protectively and harmfully. The study suggests future drugs could target only its damaging effects, paving the way for more precise treatments for chronic kidney disease.
Researchers developed innovative 3D dynamic cell co-culture models to simulate MASLD progression stages, addressing traditional 2D culture limitations. Pro-inflammatory macrophages were identified as drivers of hepatocyte lipid metabolism disruption.
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.