A multi-institutional team has discovered a novel immune regulatory mechanism mediated by antibodies that selectively shut down overactive immune responses. The 'immune-induced TCR-like antibody' (iTab) can reduce disease severity and delay its onset in a mouse model of autoimmune disease.
Researchers have discovered a promising bioactive compound that can effectively reduce symptoms of conditions like asthma and migraine by blocking a receptor on certain defense cells. The compound is effective in eliminating life-threatening allergic reactions in mice and has shown promise for treating inflammatory conditions.
Researchers discovered that gut bacteria can transform cholesterol-derived bile acids into powerful metabolites that strengthen anti-cancer immunity by blocking androgen signaling. These microbially modified bile acids antagonize the androgen receptor, driving anti-tumor immunity in mice with bladder cancer.
Researchers found that immune molecule IL-17 influences brain regions to induce either anxiety in the amygdala or sociable behavior in the somatosensory cortex. This discovery highlights the interconnectedness of the immune and nervous systems.
A new study found that treating aged mice with montelukast improved retinal health by reducing inflammation and boosting proteasome activity. This approach may offer a promising new way to slow age-related vision loss and protect eye health in older adults.
This study investigated the effects of Shenfu Decoction on neutrophil chemotactic function in septic mice. The results showed that Shenfu Decoction improved neutrophil chemotaxis function, decreased P2X1 receptor expression, and increased CXCR1 and CXCR2 receptor expression.
Researchers at U of T discover a ginger compound called furanodienone that selectively binds to and regulates nuclear receptor PXR, reducing inflammation in the colon. FDN has been shown to increase tight junction proteins, repairing damage to the gut lining caused by inflammation.
A fungal infection has been shown to trigger a fruit fly's own immune system to destroy brain cells leading to signs of neurodegeneration. The fungus makes the fly's innate immune system release Sarm, which suppresses the immune response and kills brain cells.
CAR-T cell therapy has been shown to transfer CAR molecules to bystander T cells through trogocytosis, allowing the therapeutic effect to spread beyond the engineered cells. The study reveals that the transmembrane domains of these molecules regulate this process, potentially leading to improved efficacy and reduced side effects.
Researchers at Nagoya University found that stimulating CB2 with JWH 133 improved cognitive function and reduced neuroinflammation in AD mouse models. The study suggests that CB2 is a potential therapeutic target for Alzheimer's disease, providing a cost-effective alternative to existing treatments.
Research identifies IL-1R1-expressing neurons in key brain regions, including the somatosensory cortex and hippocampus, which regulate sensory processing, mood regulation, and memory. The study provides new insights into how inflammation contributes to sensory, mood, and memory disorders.
Researchers at Uppsala University found that Semliki Forest virus penetrates the central nervous system by entering the cerebrospinal fluid and binding to VLDLR before penetrating deeper into the brain. This finding could be used to develop the virus as an agent for treating brain cancer.
Researchers found significant functional variations between rodent and human PD-1 due to evolutionary divergence. The study reveals a unique motif present in most mammals but missing in rodents, leading to uniquely weaker rodent PD-1.
Scientists at Goethe University Frankfurt have discovered a new way to tailor natural killer cells to target leukemia cells, improving their efficacy. The researchers used CRISPR/Cas9 gene editing to disable an immune checkpoint, allowing the modified cells to attack cancer cells more effectively.
Researchers found that antibodies targeting a specific site on the malaria parasite's virulence protein bind to the human host's endothelial protein C receptor, neutralizing the parasite. The discovery provides new insights into prevention and treatment of severe malaria.
Researchers found that increasing levels of the naturally occurring endocannabinoid 2-AG can counteract the rewarding properties of opioids, reducing addiction-like behaviors in mice. The study suggests a potential new therapeutic strategy to alleviate pain while minimizing opioid addiction risk.
A new study has revealed a hidden pocket inside the TAS2R14 bitter taste receptor, which can recognize and respond to a wide variety of compounds. This discovery could lead to new ways of designing medications that target these receptors, potentially helping to treat conditions like asthma and inflammation.
Researchers at University of California - San Francisco designed biological sensors that can ensure engineered cells are activated in tumor environments, making cancer therapies more effective. The new sensors, called SNIPRs, can bind to soluble molecules and alter gene expression, offering a promising approach for targeted therapies.
New research led by Andrija Sente uncovers the atomic structure of GABA <sub> A </sub> receptors, revealing unique subunit combinations that create previously unrecognized receptor types. These findings highlight the need to account for variations in drug development to avoid unintended binding sites.
A new mechanism has been found by which tumor cells escape the immune system, involving a protein called IRGQ. Studies have shown that suppressing IRGQ can trigger a stronger immune response against cancer cells, leading to improved survival rates in liver cancer patients.
A research team led by Prof. ZHOU Rongbin found that GPR34 promotes tumor growth by suppressing ILC1-mediated anti-tumor activity. Blocking GPR34 with inhibitors can inhibit tumor growth in various models, providing a new immunotherapy strategy for liver and colorectal cancers.
Researchers at the University of São Paulo developed a synthetic peptide that mimics the ACE2 receptor, blocking SARS-CoV-2 invasion and reducing inflammation in human lung cells and mice. The peptide could be customized for every variant, offering a fast-acting molecular shield against the virus.
Researchers have provided compelling evidence that perceived stress can directly trigger the relapse of psoriatic skin lesions. The study used a humanized mouse model to show that sonic stress led to a relapse in all psoriasis lesions within 14 days, accompanied by increased inflammation and immune activation.
Researchers aim to find a new treatment pathway for diabetic retinopathy by targeting the IL-6 protein. They suspect that selectively inhibiting trans-signaling while allowing cis-signaling will stop damage and restore balance in the retina.
CAR-T cell therapy, a regenerative immunotherapy, has shown promise in treating blood cancers but struggles with T-cell exhaustion. Researchers have discovered that overproduction of the IL-4 protein causes this exhaustion and used CRISPR gene-editing technology to remove it, improving CAR-T cell therapy outcomes.
Researchers have discovered a new regulator affecting immune cells, which could lead to treatments reducing inflammation in diseases such as arthritis and severe COVID-19. The study found that the regulator, MICL, plays a key role in regulating inflammation in these diseases.
New research published in The FASEB Journal shows that blocking CTLA-4 activates Th17 cells, increasing inflammation and damaging the heart. Inhibiting this activation reverses anti-CTLA-4-mediated heart damage.
Scientists at St. Jude Children's Research Hospital identified two chemokines, CXCL8 and CXCL16, expressed by osteosarcoma that improved CAR T-cell homing. Modified cells expressing these chemokine receptors showed enhanced infiltration into tumors, leading to prolonged survival in a model of metastatic disease.
Researchers discovered a unique protective mechanism in pancreatic β-cells, relying on elevated levels of pro-survival proteins like cFLIP. This discovery challenges the dominant paradigm and offers new insights into diabetes research, potentially leading to novel strategies for preserving β-cell function.
Researchers have discovered that SARS-CoV-2 can infect more types of lung cells than previously thought, including those without known viral receptors. The study also found that the lung can independently muster an inflammatory antiviral response without immune system help when exposed to the virus.
A team of researchers has discovered a mechanism by which the liver's immune cells are suppressed in chronic hepatitis B, leading to organ damage. The 'sleep timer' function allows immune cells to weaken their activity over time, preventing them from proliferating excessively and causing further damage.
Non-flowering bryophytes, including mosses, have sophisticated immune receptor repertoires that can be transferred between flowering and non-flowering plants. This discovery offers a new source of resistance genes against pathogens for major crops facing climate change threats.
A new University of Cincinnati study reveals that a signaling pathway in the brain helps maintain health and prevent inflammation and cognitive deficits. Microglia cells produce their own TGF-β ligand to regulate local states of inflammation.
Researchers at UC Berkeley have identified two sets of genetic mutations associated with lupus, enabling the development of targeted therapies. The discoveries could lead to more effective treatments for patients with oversensitive TLRs and TLR7 receptors.
Researchers found that GZ17-6.02 killed uveal melanoma cells by enhancing autophagy, inactivating key proteins, and reducing growth factors. The compound also interacted with doxorubicin and ERBB inhibitors to enhance tumor cell killing, suggesting potential as a single agent or combination therapy.
Researchers at TUM have uncovered a mechanism by which tumor cells prevent the formation of immune responses, including cytotoxic T cells. This discovery provides rationales for new cancer immunotherapies and could enhance existing treatments.
Researchers investigate link between HPV vaccination and autoimmune disorder anti-NMDA receptor encephalitis. Cases associated with HPV vaccination have been reported, but underlying mechanism unclear. The study uses phylogenetic analysis of microRNA biomarkers to explore this association.
A study by the University of Gothenburg found that women with triple-negative breast cancer and high immune cell levels have a lower relapse risk after surgery. This suggests that these patients may not need chemotherapy, despite having faster-growing tumors and higher relapse rates than other breast cancers.
Researchers assessed the feasibility of dual PD-L1/CTLA-4 checkpoint inhibition in Stage II or III hormone receptor-positive, HER2-negative breast cancer. Eight patients received upfront durvalumab and tremelimumab prior to neoadjuvant chemotherapy, showing mixed responses and limited benefit.
Researchers discovered that plant immune proteins condense into droplets to become activated and protect against infections. Phase separation plays a crucial role in the activation of TIR domain proteins, a class of important immune receptors.
Research reveals that dietary tryptophan can be broken down by gut bacteria into small molecules that bind to a receptor, triggering a pathway that reduces the production of proteins used by E. coli to attach to the gut lining. This ultimately prevents the pathogen from colonizing and causing infection.
A new strategy used by cancer cells to protect themselves from immune system attack has been identified, and a potential target for immunotherapy has been found. Blocking activin receptor 1C on CD4+ T cells may help prevent the accumulation of immune-suppressing Tregs in tumors and slow tumor growth.
Researchers identified NTRK gene fusion in 1.5% of Finnish papillary thyroid cancer patients, with notable co-occurring genetic alterations and favorable treatment outcomes. The study highlights the potential for biobank samples linked to electronic health records to describe patient characteristics and outcomes.
The aryl hydrocarbon receptor is highly correlated with various aging hallmarks, including mitochondrial abnormalities and cellular senescence. AhR signaling regulates airway inflammation in asthma, suggesting its crucial role in regulating asthma phenotypes.
Researchers have discovered that plant immune receptors and growth-related proteins share a common evolutionary ancestry, allowing for the creation of hybrid receptors with enhanced functionality. This breakthrough could lead to the development of disease-resistant crops by isolating and engineering immune receptors from various plants.
Researchers analyzed LTBR expression levels in various cancers, finding it associated with low patient survival and immune cell infiltration. The study identified LTBR as a potential target for cancer immunotherapy and marker of poor prognosis.
Researchers from Aarhus University discovered a newly found receptor called CD163 that appears to protect against Parkinson's disease in females. The protein is involved in the immune response and seems to exert a neuroprotective role particularly relevant in females.
Scientists have developed a new system to display epitopes in mammal cells for immunization studies, potentially speeding up the immunization process. This method allows for targeted immune responses against specific viral proteins without the need to purify antigens.
Researchers discovered how Vγ9Vδ2 T cells recognize pathogens and cancer cells by their altered cell metabolism. The study found that phosphoantigens bind to special molecules inside the cell, triggering a signal to kill. This finding can improve the clinical use of Vγ9Vδ2 T cells in tumor treatment.
A new method developed at Karolinska Institutet can identify unique immune cell receptors and their location in human tissue. This breakthrough could lead to the development of novel therapies for diseases such as cancer and autoimmune disorders, by pinpointing the specific immune cells responsible.
Researchers have discovered that a specific immune receptor, CD300f, plays a crucial role in determining the onset of age-related pathologies, including cognitive decline and premature aging. The study found that mice lacking this receptor developed accelerated aging and related disorders, particularly in females.
Extracellular vesicles have been found to transport bacterial products into human cells, alerting the immune system and potentially affecting physiology. This discovery explains a key mechanism by which bacteria impact our health, with implications for both infections and normal bodily functions.
Researchers used cryo-electron microscopy to capture detailed images of key receptors, unveiling their interactions with molecules and signaling mechanisms. This study provides significant insights into a crucial receptor family within the immune system, potentially paving the way for innovative treatments.
Researchers have developed a synthetic peptide that could help reduce vascular problems associated with acute respiratory distress syndrome in COVID-19. The peptide, called TIP, works by binding to a subunit of the epithelial sodium channel, which helps maintain barrier function and prevent damage from viral proteins.
Researchers found that beta-blockers can revive exhausted killer T cells, making them better cancer fighters. The study discovered a link between the sympathetic stress response and immune system response to cancer.
Researchers discovered that immune cells create local gradients by consuming chemokines, guiding their movement and enhancing directional movement in complex environments. This finding increases understanding of coordinated immune responses and may reveal new strategies for targeting cancer
Researchers at ISTA discovered that immune cells actively shape their environment by consuming chemokine signals, allowing them to generate their own guidance cues. This dynamic regulation enables collective migration of immune cells and has significant implications for enhancing immune response coordination.
Researchers found that Dectin-1 stimulation induced a unique immune signature in HIV-positive older adults, characterized by increased levels of IL-12, TNF-α, and IFN-α. This signature may contribute to the pro-inflammatory environment associated with HIV and aging.
Researchers found that GSDMD's N-terminal fragment induces the transcription of MHCII molecules in intestinal epithelial cells, leading to an increase in Type 1 regulatory cells and ultimately food tolerance. The study provides new insights into the treatment of food allergies.
Researchers at TUM develop an RNA agent for a lung spray that slows macrophage activity, reducing lung inflammation and fibrosis. The active substance RCS-21 is delivered via an inhaler through a special sugar molecule, showing promise in treating acute inflammatory lung damage.