Articles tagged with Peripheral T Cells
Researchers found robust, virus-fighting T cells in lung tissue that correlate with reduced viral load, inflammation, and improved respiratory function. These cells maintain a polyfunctional memory phenotype after viral clearance, highlighting their role in controlling COVID-19.
P4HA1 enzyme disrupts energy production in immune cells, weakening their ability to fight cancer. Inhibiting P4HA1 restores healthy immune cell function and sustains long-term immunity, showing promise in treating solid tumors.
Researchers found that a lower CD4+/CD8+ T cell ratio after 12-24 weeks significantly predicted HBsAg clearance in IHCs treated with peginterferon alpha. Higher baseline percentages of CD3+CD8+ cells and lower CD4+/CD8+ ratios were also associated with improved outcomes.
Researchers discovered a key role for neutrophils in cancer cell colonization of abdominal fat through the release of DNA webs called NETs. Additionally, a new biomarker study found that dose-dense chemotherapy improved disease-free survival by 20% and overall survival by 15% for women with early-stage ER-positive breast cancer.
More than 70 hematology researchers from the University of Miami Miller School of Medicine will showcase their work at the 66th ASH Annual Meeting & Exposition. Researchers from Sylvester Comprehensive Cancer Center are authors or co-authors on a significant number of posters presented during the event.
Researchers from the Sylvester Comprehensive Cancer Center presented their findings on the association between smoking intensity, genetic mutations, and disease progression in myelodysplastic syndromes. Dr. Stephen D. Nimer received the 2024 ASH Mentor Award for his impact on hematology trainees.
Researchers found that subretinal adeno-associated virus 8 injections trigger proinflammatory T-cell responses, but co-injection of immunodominant peptides can modulate the immune system. This study suggests a new approach to AAV gene therapy for retinal diseases.
Researchers found that T cells can reshape their memory and maintain diversity against COVID-19 variants in response to successive mRNA vaccinations. The study revealed a shift among clonotypes, with a change from early responders to main responders after the second shot, suggesting a new dominant population of effector-memory T cells.
In a mouse model of multiple system atrophy, alpha-synuclein overexpression induces neuroinflammation, demyelination, and neurodegeneration. IFNγ produced by infiltrating CD4+ T-cells mediates these changes. The study suggests that IFNγ is a potential future disease-modifying therapeutic target.
A Northwestern University study found epigenetic changes in Alzheimer's patients' blood that increase the risk of the disease. The researchers discovered altered immune genes and proteins in the blood that could be triggered by previous viral infections or environmental pollutants, potentially leading to brain damage.
Researchers at Massachusetts General Hospital have developed a novel 3D human cellular model that mimics the intricate interactions between brain cells and immune invaders, providing insights into how immune cells contribute to Alzheimer's disease progression. The study identified specific types of immune cells called CT8+ T Cells surg...
Recent research on gamma delta T cells has made significant progress in understanding their role in antitumor immune response. Key findings include the identification of various hidden mechanisms and a strong association between tumor-infiltrating gamma delta T cells and patient survival.
Researchers found virus-specific T cells in the noses of people who received vaccines and later became infected with SARS-CoV-2, providing an additional layer of protection. These cells persisted for at least 20 weeks and could recognize various viral proteins, including those from the Omicron variant.
Researchers from Arizona State University investigate autoantibodies in healthy individuals, revealing their pervasiveness and role in human health and disease. The findings aim to improve diagnostics and therapeutics for a range of illnesses.
Researchers developed a new treatment option for relapsed or refractory CD30+ lymphoma using natural killer cells complexed with a CD30/CD16A bispecific antibody. The treatment showed an overall response rate of 89% in patients with advanced lymphoma.
A team of researchers at MedUni Vienna's Center for Physiology and Pharmacology has discovered a key building block in immune cells that promotes immunotolerance and prevents T-cell attacks on the body's own tissues. The study suggests a potential new cell-based therapeutic approach to slow down autoimmune disease progression.
A fasting-mimicking diet was found to be safe and biologically active in cancer patients, with potential benefits for modulation of metabolism and enhancement of antitumor immunity. The study demonstrated significant reductions in blood glucose and growth factor concentrations, as well as enhancements in intratumor T-cell infiltration.
Scientists discovered beige fat cells mediate subcutaneous fat's brain protection and provide anti-inflammatory effects. Beige fat transplantation restored cognitive function in obese mice with dementia-like behavior.
Researchers at the University of Tsukuba have discovered how VAV1 gene mutations can promote the development of T-cell tumors in laboratory mice. The study found that mice with both VAV1 mutations and lack of p53 developed mature tumors resembling human peripheral T-cell lymphoma.
A new study from Penn researchers identified three distinct immune profiles in severely ill COVID-19 patients. These immunotypes were characterized by different levels of CD4+ and CD8+ T cell activity, with the third type showing little to no immune response. The findings could help predict disease severity and guide treatment strategies.
A recent study at University of Eastern Finland discovered a novel T-cell subset, peripheral helper T cells, associated with the onset of type 1 diabetes. These cells were found to be more frequent in children who later developed the disease and those with autoantibodies indicating genetic risk.
Researchers at Mayo Clinic have completed the world's first genome-wide sequencing analysis of peripheral T-cell lymphomas, unlocking genetic secrets of this poorly understood and highly aggressive cancer. The study identifies 13 genomic abnormalities, including five related to production and behavior of the p53 protein.
The study found a correlation between peripheral T lymphocyte subpopulations and hepatitis B virus load in patients with chronic HBV infection. The results suggest that the composition of T-cell subpopulations is different at various stages of the infection, which relates to viral load.
Researchers have identified Hsp90 as a key player in Alzheimer's disease, with a new drug candidate showing promise for reducing tau protein levels. Additionally, serine proteases may be the cause of abdominal pain in irritable bowel syndrome, and targeting them could provide relief.
Activation of antigen-presenting cells (APCs) by microbial products leads to the breakdown of self-tolerance in the immune system. This breakdown induces autoimmune disease, a condition where the immune system mistakenly attacks healthy tissues.
GammaDelta T cells are activated by bacterial pathogens, recognizing and responding to peptidoglycan patterns. They release pro-inflammatory cytokines to coordinate an immune response, providing innate protection against bacterial infections.
Researchers found that IL-7 increases in response to declining CD4+ cell counts, a hallmark of HIV disease. This cytokine stimulates the thymus and other immune tissues to produce new T-cells, potentially rebuilding the entire T-cell compartment.
Researchers have successfully engineered CD4+ T cells to carry a fluorescent marker, allowing for the first time the tracking of autoimmune cells in vivo. The technique enables the study of physiological processes and inflammatory diseases, opening new avenues for therapeutic approaches.
The study identifies a mechanism by which the immune system eliminates dysfunctional T cells, which can lead to autoimmune diseases and cancer. The research suggests that continuous contact with class I MHC proteins is essential for maintaining the balance between cell survival and death.
A study found that IL-2 plus HAART treatment reduced the number of resting CD4+ T cells harboring HIV, making it harder for the virus to replicate. Researchers detected no replication-competent HIV in peripheral blood samples from patients treated with IL-2 plus HAART.
Researchers have made progress toward a gene therapy for HIV infection by genetically altering virus-fighting T-cells to recognize and attack HIV-infected cells. The study found that engineered T-cells persisted in the bloodstream for at least 100 days after infusion, proliferating and providing long-term immunity.
Researchers at the University of Pennsylvania Medical Center have devised a unique procedure to transform monocytes into battle-ready dendritic cells, boosting the immune system's cancer-fighting forces. The modified cells have shown ability to activate T cells within one week.