Macrophages
Articles tagged with Macrophages
Turning up the volume on macrophage-driven immune responses
Sticks and stones may break my bones but “hybrid” macrophages could heal me
Scientists created hybrid macrophages that can simultaneously promote blood vessel and bone growth, potentially improving outcomes for patients with bone fractures. The discovery could lead to new cell-derived therapies that speed up recovery and improve healing.
UCLA scientists identify zombie immune cells as a driver of fatty liver disease, inflammation and aging
Researchers identify senescent macrophages as a driver of fatty liver disease, inflammation and aging. Clearing these cells reversed liver damage in mice on unhealthy diets.
Study shows mechanisms of aortic aneurysm progression and potential drug therapies
Researchers found that clonal hematopoiesis accelerates aortic aneurysm progression and that commonly used osteoporosis drugs can slow or halt this process. The study identified a key mechanism by which macrophages contribute to extracellular matrix degradation, providing a potential non-surgical approach for treating aortic aneurysms.
UMass Chan researchers shed light on how inflammation in GI tract rewires enteric nervous system
Research reveals inflammation in the GI tract changes how nerves are arranged, affecting intestinal muscle contractions. A protective stress response pathway helps neurons survive, preserving their structure and potentially offering a way to curtail persistent symptoms associated with IBD.
HKUMed discovers expanded use of fatty liver drug for preventing and suppressing liver cancer
A study published by HKUMed found that Resmetirom, a drug approved for treating metabolic dysfunction-associated fatty liver disease, demonstrates potential in preventing and suppressing liver cancer caused by fatty liver disease. The treatment also reduces liver fat, improves metabolic health, and modulates the tumour microenvironment.
Dual targeting approach improves immunotherapy response in glioblastoma
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.
Pro-inflammatory macrophages increase melanoma cell aggressiveness via extracellular vesicles
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
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.
Study finds lack of Angptl4 gene triggers long-term protection against inflammatory bowel disease by reprogramming the immune system
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.
Macrophage immune cells need constant reminders to retain memories of prior infections
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.
Unveiling powerful synergies between plant compounds that dramatically reduce inflammation
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 publication details development of cancer-induced cachexia and anorexia
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.
UNC-Chapel Hill researchers reveal how chronic inflammation breaks the immune system’s repair crew
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.
Metallic markers make direct measurement of protein activity possible
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.
Targeting the gut's immune system could tackle early stages of Parkinson's
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.
PDK4 regulates inflammatory injury in acute-on-chronic liver failure by phosphorylating STAT1-mediated M1 polarization of macrophages
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.
3′UTR-derived small RNA couples acid resistance to metabolic reprogramming in Salmonella within macrophages Jan 07, 2026
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.
Sequestered in immune cells, barium titanate nanoparticles stimulated by ultrasound launch inflammatory response
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.
Cat disease challenges what scientists thought about coronaviruses
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.
Researchers identify novel therapeutic target to improve recovery after nerve injury
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.
Scientists uncover how immune cell “fuel” shapes atherosclerosis
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.
New study identifies key protein driving inflammation with age
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.
Breakthrough nanomedicine mPEG@ELA-11 shows promise in atherosclerosis treatment
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.
Antibody halts triple-negative breast cancer in preclinical models
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.
From warriors to healers: a muscle stem cell signal redirects macrophages toward tadpole tail regeneration
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.
Scientists move closer to better pancreatic cancer treatments
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 prevents metabolic dysfunction-associated steatohepatitis by inhibiting NLRP3/GSDMD-N axis in macrophages
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.
Researchers identify perineural pathway that fuels HIV persistence despite treatment
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.
Dual-function molecule could unlock smarter treatments for kidney disease
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.
Breakthrough 3D dynamic cell models revolutionize MASLD research
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.
Could targeted steroid use offer a universal complimentary treatment to fight TB?
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.
Body’s garbage-collecting cells protect insulin production in pancreas
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.
How lysosomal acidity balances pathogen killing and tissue protection
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.
AI-driven atomic force microscopy platform developed for decoding human immune cell mechanics
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.
Developing a novel drug for acute myocardial infarction, acute kidney injury, and subsequent chronic organ failure
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.
Uncovering cancer-immune cell interactions driving breast cancer metastasis
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.
Electrical stimulation reprogrammes immune system to heal the body faster
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.
Macrophages swallow damaged mitochondria through microautophagy
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.
From defenders to enablers: how senescent macrophages fuel tumor growth
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.
Not just a messenger: Developing nano-sized delivery agents that also provide therapeutic treatment
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.
New research examines how pH impacts the immune system
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.
Groundbreaking study offers a novel approach to enhance neuromuscular function in patients with Duchenne muscular dystrophy
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.
Can the enzyme behind high cholesterol be turned off?
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.
Immune cells promoting tumor growth? How dying cancer cells turn their enemies into allies
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.
In diseases due to exposure to toxic particles like gout, macrophages elicit separate pathways for inflammation and lysosomal function
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.
Novel mechanism reveals alveolar epithelial autophagy protects against Pseudomonas infection
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.
EGFR inhibitor-linked cytokine storms: study uncovers the trigger
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.
New clues in aortic dissection: Endothelial dysfunction meets immune infiltration
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.
Damon Runyon Cancer Research Foundation awards Quantitative Biology Fellowships to five cutting-edge scientists
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.
C5aR1 inhibition found to slow endometriosis progression
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.
Anti-inflammatory drug reverses periodontal damage via cellular cleanup
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.
A self-assembled metabolic regulator reprograms macrophages to combat cytokine storm and boost sepsis immunotherapy
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.
Lung immune cell type “quietly” controls inflammation in COVID-19
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.
Nature publication explains mechanisms of mRNA-based therapeutics in study from Polish researchers
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.
Study shows how new antibody therapy works against ovarian cancer
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.
Machine learning approach to investigating macrophage polarization on various titanium surface characteristics
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.
Inhibiting sphingosine-1-phosphate receptor 3 (S1pr3) mitigates pulmonary fibrosis
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 new mechanism for rapid liver regeneration triggered by glutamate
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.