Articles tagged with Natural Killer Cells
Regular moderate exercise reduces the risk of catching respiratory infections like colds by up to a third, thanks to long-term improvement in immunity. However, prolonged strenuous exercise increases the likelihood of illness, making athletes more susceptible to upper respiratory tract infections.
Natural Killer cells play a critical role in early immune responses to tumours and viruses, exploiting HLA molecules on healthy cells to launch attacks. The research may help develop approaches to better utilize Natural Killer cells to combat viral infection.
Researchers at Imperial College London and the University of Oxford used 'optical' laser tweezers and a super-resolution microscope to observe the inner workings of white blood cells, including Natural Killer cells. The study provides new insights into how these cells deliver deadly enzyme-filled granules to kill diseased tissue.
Researchers used a 'super-res' microscope to study the immune system and found that granules from natural killer cells pass through openings in dynamic cell structures to destroy tumor cells and infected cells. This discovery may lead to more effective treatments for inherited diseases that impair the immune system.
A new microscope technology allows scientists to see individual elements in immune cells, including protein filaments and granules that destroy infected cells. The study reveals that these granules pass through openings in the cell skeleton to reach their targets.
A study on natural killer cells in wild mice found that these mice have higher numbers of NK cells compared to lab mice, suggesting a closer representation of human immune systems. The findings support the hypothesis that environmental factors are needed to fully represent the immune system.
Researchers found that breast tumor cells can evade NK cell antitumor activity by promoting self-tolerance. The study suggests that restoring NK cell function could benefit individuals with breast cancer.
Researchers discovered that natural killer cells contribute to dry eye disease development by inducing inflammatory responses in ocular surface and lymph nodes. This breakthrough offers hope for new treatments targeting the cellular cause of the disease, improving quality of life for millions affected.
Researchers used an alternative cell signaling pathway to improve immune function in a 13-year-old boy with mild Wiskott-Aldrich Syndrome, a rare and deadly immunodeficiency disorder. The study achieved clinical laboratory benefits and represents a new treatment option for patients with WAS.
Researchers identified significant qualitative differences in human and chimpanzee natural killer cell receptors, shaped by human-specific evolution. These distinctions affect the ability to fight infections like HIV/AIDS and malaria, as well as reproductive processes.
Research led by Dr. Fu-Dong Shi at Barrow Neurological Institute revealed that natural killer cells play a critical role in controlling CNS inflammation and immune response. Enriching affected areas with NK cells improved disease symptoms, while blocking them worsened outcomes.
Researchers at Imperial College London discovered that natural killer cells use membrane nanotubes to ensnare and destroy tumour cells and virus-infected cells. This new mechanism increases the cells' chance of killing their target cells from a distance, significantly improving cancer treatment options.
Researchers found that adding daclizumab to standard treatment for relapsing multiple sclerosis reduced the number of new or enlarged brain lesions. The study also showed an increase in immune cells called CD56bright natural killer cells, which may help regulate the immune system.
Pediatric immunologist Dr. Jordan Orange received the American Philosophical Society's Judson Daland Prize for his contributions to researching and treating inherited immune deficiency diseases. His work focuses on natural killer cells, which have an inherent ability to destroy cancer or virus-infected cells.
Researchers have identified the 'master gene' E4bp4, which drives blood stem cells to produce disease-fighting Natural Killer immune cells. The discovery could lead to new ways to treat cancer and autoimmune diseases by boosting the body's production of these frontline tumour-killing cells.
Researchers used high-speed microscopy to observe NK cell behavior when interacting with healthy or diseased cells, discovering that the cell's surface receptors determine whether it kills or leaves a cell alone. Understanding this process could lead to new ways of boosting immune defenses to treat disease.
Researchers discovered elevated populations of NK cells in the bile ducts of infants with biliary atresia, which led to tissue damage. Blocking the Nkg2d receptor and depleting NK cells prevented damage to bile duct surface tissues.
Researchers found that anakinra treatment restored the deficient IL-18 response of natural killer cells and improved clinical parameters in patients with systemic onset juvenile idiopathic arthritis (SoJIA). The study suggests a potential new treatment strategy for children with newly-diagnosed SoJIA.
Researchers have discovered that the innate immune system's natural killer cells can learn from experience and fight more effectively when called into battle a second time. This new ability, known as 'memory-like,' was found in natural killer cells that could respond more easily and vigorously to reactivation.
A Montreal-based research team has identified a new mechanism controlling NK cell activity, which could improve the treatment of cancers and infectious diseases. The team's breakthrough discovery reveals that the CRACC molecule enhances NK cell killer function.
Researchers at Washington University School of Medicine discovered a single protein, HS1, that enables key functions of natural killer (NK) cells. The protein allows NK cells to pursue targets, latch on, and kill them. Further study of HS1 may open new possibilities for revving up NK cells to fight infections and cancer.
Researchers found that antidepressant medications increased natural killer cell activity in HIV-infected women with and without depression. The study suggests a potential link between antidepressant treatment and improved innate immunity, which could delay HIV disease progression.
Researchers have discovered that hyperacidification of the TGN causes increased activity of furin, leading to tissue fibrosis in individuals with CF. Additionally, a new study on EHEC O157:H7 has identified the role of type IV pili in intestinal adherence and immune response.
Researchers have identified a new target for HIV/AIDS drugs and vaccines, focusing on the Nef viral protein's impact on the innate immune system. The study suggests that blocking this protein's activity could lead to the development of new treatments.
Researchers at Jefferson University have developed a method to expand immune system natural killer cells from blood cells outside the body. Adding these cells to anti-cancer therapies involving monoclonal antibodies is more effective in killing cancer cells, offering new treatment possibilities.
Natural killer cells rely on receptor tyrosine kinases, such as Tyro3, to acquire their reconnaissance tool kit, allowing them to distinguish friend from foe. The study reveals that environmental signals, transmitted through Gas6 and protein S, trigger the maturation of natural killer cells.
The study found that pro-inflammatory cytokines increase positive regulators of IFNg production while shutting down negative regulators like TGFb, which lowers IFNg levels. This fine balance ensures healthy NK cell activity and prevents autoimmune diseases and cancer.
The Mayo Clinic research identifies a signaling mechanism by which natural killer cells initiate a toxic response against cancers and viruses. The discovery provides crucial information for designing therapies to stop, reverse or protect against cancer.
A Stanford study reveals that the sea squirt Botryllus schlosseri uses a gene similar to the human immune system to distinguish between self and non-self. This finding may lead to new ways to control natural killer cells and treat diseases like leukemia and multiple sclerosis.
Researchers at IRCM discover EAT-2 suppresses NK cell activity, boosting killer function to combat cancers and infections. Medications inhibiting EAT-2 may improve treatment effectiveness for cancers and communicable diseases.
Scientists at WashU Medicine found that natural killer cells become more capable of attacking invaders after encountering a specific molecule on the surface of other cells. This process, known as licensing, has important implications for understanding persistent viral infections and bone marrow transplants.
Researchers at St. Jude Children's Research Hospital have developed a technique to produce large numbers of genetically modified NK cells that can effectively target and eliminate leukemia cells. The new technology has the potential to be used as a treatment for leukemia patients undergoing hematopoietic cell transplantation.
Researchers have successfully demonstrated that half-matched donor (haploidentical) natural killer cells can survive and persist to actively attack cancer cells, potentially leading to remission and eligibility for bone marrow transplant. This breakthrough treatment option shows promise for some patients with AML.
Researchers found a genetic connection between preeclampsia and the interaction between trophoblast cells and natural killer cells. The study suggests that a specific protein combination may be responsible for suppressing the NK cells' ability to stimulate vessel remodeling, leading to decreased blood flow to the fetus.
Researchers found that natural killer cells are associated with destructive insulitis and beta cell destruction, suggesting a potential new target for halting or slowing disease progression. The study's findings have implications for understanding the complex interactions between immune cells and the development of type 1 diabetes.
A study found that moderate exercise over 11 months improved immune activity, increased muscle strength, and decreased total cholesterol and LDL levels in older adults. This suggests a simple home-based exercise program can provide important health benefits for aging individuals.
Rockefeller University scientists have discovered that natural killer cells, a crucial part of the immune system, need to be 'nurtured' before they can effectively destroy tumor and infected cells. This new understanding paves the way for potential changes in bone marrow and stem cell transplant procedures.
Researchers investigate NEMO submersion in virus-prone boys to identify potential risks and benefits. The study aims to provide a deeper understanding of the relationship between viral exposure and physiological responses.
Researchers found that exposure to agricultural fungicide Triphenyltin (TPT) can irreversibly suppress natural killer cell function, a crucial part of the human immune system. Even after TPT is removed, these cells are unable to regain their strength.
Researchers have found that butyltins can disrupt the function of human natural killer cells, which are critical in fighting tumor cells and infected cells. The study's findings highlight the need for further research into the potential health effects of these chemical contaminants on humans.
A new study found that chronic stress can reduce the activity of natural killer cells in people with a history of cancer, especially those caring for a loved one with Alzheimer's disease. The study suggests that high levels of perceived stress and biological predisposition to cancer can compromise the body's ability to fight cancer.