12 Thus, monoclonal antibodies that bind CTLA-4 were developed as anticancer therapies under the theory that through blockade of the CTLA-4-mediated inhibitory signal, the activity of T-cells may be activated against tumor antigens and their activity harnessed for treatment of cancer.
If the immune organs could be activated against a cancer, we might find a pathway through the jungle and, maybe, to a cure.
Since donor alloreactive T-cells are also being activated against host epitopes presented on normal tissues, graft-versus-host disease (GVHD) [29], [30] is the most common threatening complication post allogeneic transplantation.
Taken together, these data suggest that systemic melanoma-specific mature B cell responses may be present in patients with melanoma and may harbor the potential to be activated against cancer cells.
Following application of the plasters, the applicator was activated against each plaster to ensure consistent MN penetration in each volunteer (confirmed using OCT, as described previously).
Moreover, it might be a unique characteristic of CMV infections that CD8+ T-cells are activated against highly promiscuous epitopes presented by MHC class II molecules, as demonstrated in rhesus cytomegalovirus infection [ 165].
Since the patient developed only ileitis without colitis - as reported in the most of patient in the phase III study - we can suppose that two different autoimmune pathways could be activated against colic and ileal epitopes.
When a foreign particle--such as a bacteria-produced toxin--binds to these receptors, the immune cell is activated and triggers fights against other invaders that share the same signature.
Once excessive Pb ions enter the cytoplasm, a defense mechanism is activated, protecting the cells against Pb toxicity at the cellular level.
Along with processes such as antigen processing and phosphatidylinositol signalling, it can be seen that genes involved in axon guidance are perturbed during H5N1 infection in the ileum and B- and T-cell receptor signalling is activated in the lung against H5N2.
