Articles tagged with T Lymphocytes
Researchers observed T cells exerting a tiny force of up to 5 pico-newtons when recognizing antigens, allowing them to determine if the interaction is with the desired antigen. This study provides insights into how T cells function at the molecular level and could lead to significant advances in medicine.
Scientists discovered that elite controllers' myeloid dendritic cells display traits of trained innate immune cells, which enhance their ability to control HIV. The study also found a specific long-noncoding RNA, MIR4435-2HG, that may be an important driver of this enhanced state.
A Phase II trial found that BKV-specific T cells from healthy donors are safe and effective in treating debilitating complications after stem cell transplants. Patients experienced rapid responses, with 81.6% showing improvement after 28 days, and no cases of severe GVHD or toxicities.
Researchers have developed a new generation of CAR T cells that safely target and kill solid tumors in mice with mesothelioma, ovarian cancer, and glioblastoma. The 'prime-and-kill' molecular circuits enable specific recognition of tumor antigens on healthy tissues, reducing the risk of side effects.
A team of researchers from Virginia Tech and City of Hope aim to improve CAR-T cell therapy for glioblastoma multiforme by studying the impact of fluid flow on the treatment's success. They believe they can use fluid flow to encourage T cells to move deeper into tumors and kill invading cancer cells.
The study found that stress impairs immune cells' ability to move and fight diseases by inhibiting their movements. This effect is caused by the neurotransmitter noradrenaline, which activates the sympathetic nervous system, leading to reduced blood flow, oxygen deprivation, and calcium signaling in leukocytes.
Researchers at University of Helsinki and Aalto University created an AI model that can predict T cell targets for previously unmapped viruses, including COVID-19. The model helps understand how T cells identify their targets using a key-lock principle.
Researchers found that a shorter 'linker' on CAR T cells improves their response to B-cell acute lymphoblastic leukemia. The study suggests that modifying the length of linkers can improve CAR T cell function and overcome current limitations.
A recent study has identified two distinct immune profiles in severe asthma patients, which could lead to personalized treatment approaches. The research, conducted by a team of scientists at the University of Pittsburgh and Stanford University, used advanced tools to characterize immune cells within the airways of severe asthma patients.
Researchers used a mouse model to identify the role of autoreactive T cells against transcriptional intermediary factor 1γ (TIF1γ) in dermatomyositis. The study found that autoreactive CD8+ T cells contribute to the pathogenesis of the disease, while autoantibodies are non-pathogenic clinical markers.
Studies found that disrupting interaction between p53 and Mdm2 in tumor cells is less effective than thought, as it can impair immune cell function. New compound APG115 showed promise in boosting T cell activity against cancer, suggesting a potential therapeutic approach.
A study published in the Proceedings of the National Academy of Sciences has identified a synergy between ICOS ligand and interleukin-10 that promotes mutualism with the gut microbiota. The research found that mice deficient in ICOSL had increased frequencies of IL-10-producing CD4+ T cells, which were crucial for preventing severe inf...
Researchers at Monash University have identified a novel T cell lineage, γμ T cells, which use a unique antibody-like structure to recognize pathogens. This discovery expands the immunology 'toolbox' and may lead to new approaches for fighting viral infections such as COVID-19.
Researchers integrated clinical data with mathematical and statistical modeling to study the competition between normal T cells and CAR T cells. The model confirmed that tumor eradication is a random, yet potentially highly probable event, with cures happening early after treatment.
A new method developed by researchers at the University of Missouri uses machine learning to analyze large amounts of biological data from single-cell RNA-sequencing. This allows scientists to identify patterns and make faster conclusions, which can lead to potential treatments for diseases such as Alzheimer's.
A new study explores the role of MHC-I variants in SARS CoV-2 infection, finding that certain alleles are better at binding viral fragments and stimulating a strong immune response. This knowledge may help predict individual susceptibility and inform vaccine development.
A study found that gene therapy can create a long-term store of correct T cells in the human thymus, leading to sustained health in patients with SCID-X1. The treatment works by delivering corrected genes into stem cells, which then produce healthy immune cells.
Researchers found that white blood cells quickly change their stiffness and viscosity in response to a threat, increasing up to ten times within minutes. This dramatic change occurs even before shape changes, suggesting an underlying physical mechanism with unique utility for each cell type.
Researchers develop bispecific T-cell engaging antibodies that target cancer cells and stimulate the immune system without removing T-cells. This approach could make personalized treatments more broadly accessible and potentially transform cancer into a chronic disease.
HSE researchers discovered a link between genetic predisposition and severe COVID-19 using machine learning models. The study found that individuals with effective T-cell immunity had lower risk scores, while those with weaker immunity scored higher.
Chronic increases in interleukin (IL)-17A levels in mouse blood reduce microglia activity in the hippocampus, a region crucial for learning and memory. Despite this effect on cognition, spatial memory remains unaffected in mutant mice.
Scientists have identified CD161 as a potential new target for immunotherapy of malignant brain tumors, including glioblastoma. The molecule suppresses the cancer-fighting activity of immune T cells, but blocking its pathway enhances the killing of tumor cells and improves survival rates in animal models.
A research team at Pohang University of Science & Technology has uncovered the mechanism for regulating T cell differentiation via intestinal epithelial cells. This finding highlights the importance of intestinal immune homeostasis and suggests a new role for PD-1 signaling in CD4+ T cell differentiation into intraepithelial lymphocytes.
Researchers at Terasaki Institute for Biomedical Innovation have developed a breast cancer-on-a-chip system to test immunotherapy drugs. The chip enables high-volume testing of immunotherapeutic drugs against tumor cells, allowing for the rapid screening of potential treatments.
Researchers found that patients with mild COVID-19 symptoms have an early induction of IFN-γ secreting SARS-CoV-2 specific T cells, which plays a crucial role in rapid viral control and disease clearance. The study's findings have implications for vaccine design and monitoring.
A new skin-based vaccine delivery method has shown promising results in preclinical studies, generating potent immune responses and superior lung-specific T cells against respiratory illnesses.
Researchers discovered that patients with severe COVID-19 have significantly elevated levels of M-MDSCs in their blood compared to milder cases and healthy individuals. These findings suggest a potential connection between early immune responses and disease severity.
Researchers have found that dendritic cells in young animals are capable of triggering effective immune reactions, challenging the conventional view on their immaturity. These findings suggest new ways to boost the efficacy of vaccines for young children.
Researchers at Children's Hospital Los Angeles have developed a new CAR T therapy that targets solid tumors in children, including neuroblastoma. The modified therapy uses a unique protein called synNotch to selectively kill cancer cells while sparing healthy tissue.
Researchers at Duke-NUS Medical School have designed armoured immune cells that can target hepatocellular carcinoma, a common type of primary liver cancer, without being affected by immunosuppressive drugs used to prevent organ rejection. The T cells remain effective for up to four days before regaining sensitivity to the drugs.
Researchers discovered that gamma-delta T cells require glucose to eliminate tumor cells but consume cholesterol, promoting pro-tumor functions. This dichotomy in energy resources has implications for cancer immunotherapy and diet's impact on its effectiveness.
Researchers at OHSU have discovered that a type of herpes virus may be causing a central nervous system disease in monkeys similar to multiple sclerosis in humans. The study found T cells linked to myelin loss, a critical component of MS, paving the way for potential antiviral therapies.
Researchers developed a new method to study molecular characteristics of T cells, enabling easier analysis of T cell receptors. Using this approach, they discovered that the variety of TCRs in T cells has a weaker influence on functional status in cancer patients.
Researchers developed molecular ON-OFF switches to regulate CAR T cell activity, potentially reducing toxic side effects. The switches use an FDA-approved drug to turn off or on the cells' anti-tumor function.
Researchers found that combining CAR T cells with a proinflammatory environment created by STING pathway activation can improve their ability to attack tumor cells. This approach, combined with therapeutic antibodies, led to the complete eradication of breast tumors in mice.
Researchers at TU Wien have discovered that tiny traction forces on the molecular level are essential for the recognition of antigens by T-cells. This new understanding could lead to a deeper understanding of immune system function and potentially new treatment strategies.
Researchers at the Francis Crick Institute discovered that dendritic cells present proteins from dead cells to T-cells by bursting phagosomes, a process involving receptor DNGR-1. This mechanism is fundamental to the immune system and could lead to new ways to exploit natural defenses against infection and cancer.
Researchers used bioelectronic stimulation to modulate lymphocyte activation in the spleen, potentially influencing hypertension. The study suggests a non-pharmacological approach to treating high blood pressure.
Researchers found that keeping STAT5 active in CAR T cells improves their persistence and tumor-killing ability. This breakthrough could lead to more effective cancer treatments, but further research is needed.
A high-fat diet impairs immune cell function inside tumors, reducing their antitumor activity. Blocking metabolic rewiring in cancer cells enhances anti-tumor immunity and improves immunotherapies.
A study published in the Journal of Experimental Medicine reveals that inhibiting protein OCA-B protects mice from type 1 diabetes by limiting immune cell activity. The finding provides a proof-of-principle for OCA-B as a therapeutic target and could lead to further development of treatments.
Combining CAR T cell therapy with a PAK4 inhibitor improved T cell infiltration and reduced solid tumors in mice. The study found that inhibiting the enzyme PAK4 helped normalize the tumor microenvironment, allowing T cells to attack the tumor more effectively.
Researchers combine machine learning with cell engineering to create living medicines that selectively kill cancer cells while leaving normal tissue unscathed. By analyzing massive databases of proteins, they assemble a catalog of combinations that can precisely target tumors, overcoming the limitations of current treatments.
A novel CAR T-cell therapy has shown promising early results in children with relapsed or refractory neuroblastoma. The treatment induced rapid reduction in tumor size, but effects were transient. Researchers are optimistic about the potential of this immunotherapy as a future treatment for solid cancers in children.
A phase 1 trial involving 12 children with relapsed neuroblastoma found CAR T cells effective against tumors without damaging nerve tissue. The treatment showed signs of antitumor immunity in some patients and may be further modified to boost persistence within tumors.
University of Cincinnati researchers discovered that certain immune cells respond to immunotherapy by increasing activity in potassium ion channels, allowing them to more effectively target and kill cancer cells. However, patients who do not respond to treatment lack this increased channel activity.
A recent study by MedUni Vienna dermatologists has discovered that skin-resident and inactive T cells survive chemotherapy and radiotherapy intact and go on to cause inflammation after a stem cell transplant. In some cases, these tissue-resident T cells even prove beneficial to the recipient by assuming their role in immune defense.
A new diagnostic tool has been developed to predict which cancer patients are most likely to benefit from immunotherapy treatments. The tool analyzes the interactions between immune cells and tumor cells, as well as the activation state of immune checkpoints.
Researchers describe a rare case of frosted branch angiitis, a unique presentation of florid retinal vasculitis, in a woman treated for leukemia-lymphoma with allogeneic human stem cell transplant. The condition led to immune activation and required corticosteroids to suppress inflammation.
Researchers found that the CRELD1 gene helps maintain immune function, and its low activity is linked to reduced T cell counts and increased risk of infections. The study aims to slow down immunological aging, potentially reducing illness risk in seniors.
Scientists have discovered that baking soda can reprogram T cells to resist cancer cells' immune-suppressive effects. The treatment has reversed the suppressive effects on T cells in 10 transplant recipients with relapsed AML.
Langerhans cells play a crucial role in preventing acute graft-versus-host disease by inducing the death of immune cells. Researchers at University of Tsukuba found that enhancing B7 protein expression on Langerhans cells could prevent aGVHD development, leading to improved treatments and patient quality of life.
A study published in Communications Biology found that inflammation from high IL-6 levels leads to psoriasis-like dermatitis. Researchers propose targeting IL-6 as a potential approach to preventing the condition.
A new technique developed at Scripps Research isolates tumor-reactive immune cells in just one day, offering a platform for personalized cancer treatments. The method, called FucoID, detects and tags the surface of sought-after immune cells using an enzyme, enabling their detection with fluorescent probes.
A study led by University of Zurich researchers found that the HLA-DR15 gene variant plays a significant role in developing multiple sclerosis. People with this genetic predisposition can develop an immune response against their own brain tissue if infected with certain viruses or bacteria, leading to the disease.
Researchers at La Jolla Institute for Immunology discovered that even healthy individuals have high numbers of preproinsulin-specific T cells in their pancreas. These cells are believed to be the prime suspects in triggering the autoimmune response that causes type 1 diabetes.
Researchers have found that a virus-mimicking drug can make certain stealthy melanoma tumors visible to the immune system, allowing for better targeting by immunotherapy. The findings open up new possibilities for personalized therapies in hard-to-treat cancers.
Severe COVID-19 cases linked to hyperactivated T cells in lungs, suggesting brake mechanism failure. Protein Foxp3 inhibition may lead to new treatment options.
Researchers discovered that nicotinamide riboside (NR) improves the fitness and function of T lymphocytes, which are vital for attacking tumors. In mouse models of melanoma and colon cancer, NR enhanced anti-tumor activity by improving mitochondrial function and preventing exhaustion.
Researchers at Penn State College of Medicine discovered that IL-21 is critical for the development of effective immune responses to chronic infections in the central nervous system. Injecting IL-21 into cerebrospinal fluid reduced deficiencies in mice with impaired CD4 T-cell production and gene expression related to TRM cells.