Immunosuppression involves an act that reduces the activation or efficacy of the immune system. Some portions of the immune system itself have immuno-suppressive effects on other parts of the immune system, and immunosuppression may occur as an adverse reaction to treatment of other conditions.
Brain tumor cells with a certain common mutation reprogram invading immune cells. This leads to the paralysis of the body's immune defense against the tumor in the brain. Researchers from Heidelberg, Mannheim, and Freiburg discovered this mechanism and at the same time identified a way of reactivating the paralyzed immune system to fight the tumor.
Many patients with cancer receive immune checkpoint inhibitors that strengthen their immune response against tumor cells. While the medications can be life-saving, they can also cause potentially life-threatening side effects in internal organs.
Researchers say they've identified a way to disrupt a process that promotes the growth of pancreatic cancers -- one of the most difficult and deadly cancers to treat.
Multiple sclerosis (MS) is an autoimmune disorder that develops as immune cells attack the nervous system. T cells are a critical part of our immune system, with a complex array of subtypes - some drive the autoimmune response, while others try to suppress it.
Immune response is a balancing act: Too much can lead to inflammatory or autoimmune disease; too little could lead to a serious infection. Regulatory T cells, or Tregs, are important players in striking this balance, acting as "brakes" on the immune response so it doesn't go overboard.
An immunotherapy agent combined with a tyrosine kinase inhibitor drug significantly improved progression-free survival and reduced the risk of death compared to a single agent treatment in advanced kidney cancer patients, according to first results of a phase 3 clinical trial. The pivotal study could lead to a new treatment option for patients with metastatic kidney cancer.
Expansion stress can have an alarming impact on breast cancer cells by creating conditions that could lead to dangerous acceleration of the disease, an interdisciplinary team of University of Alabama at Birmingham researchers has found.