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.
Their normal function is to inhibit cell proliferation, or act as the âbrakesâ for the cell cycle. Mutations in tumor suppressor genes contribute to the development of cancer by inactivating that inhibitory function.Mutations of this type are termed loss-of-function mutations.As long as the cell contains one functional copy of a given tumor suppressor gene (expressing enough protein to control cell proliferation), that gene can inhibit the formation of tumors.utations of this type are termed loss-of-function mutations. As long as the cell contains one functional copy of a given tumor suppressor gene (expressing enough protein to control cell proliferation), that gene can inhibit the formation of tumors.