Passport delays: applicants' long and frustrating wait. 1  Backlog caused by spike in applications has thrown many people's plans into chaos with some having to resort to desperate measures. 2  Backlog caused by spike in applications has thrown many people's plans into chaos with some having to resort to desperate measures.
Suppressor T cell. Definition. noun. A type of T cell that expresses CD8 transmembrane glycoprotein, and functions by inhibiting, suppressing, or helping to stop an immune response by releasing signals to other immune cells. Supplement. Examples of suppressor T cells are suppressor macrophages.
There are four kinds of T cells: T helper cells, cytotoxic T cells, suppressor T cells, and memory T cells. The immune response begins with the command from the T helper cells. They recognize the invader, then call in and train other immune cells, including B cells and cytotoxic T cells. The cytotoxic (cell killing) T cells kill the enemy directly.