In the adaptive immune response, do Helper T cells activate B cells and cytotoxic T lymphocytes to kill infected host cells? Do Helper T cells phagocytize bacteria and viruses?

Question

David Arnold · Accepted Answer

T helper function

The T helper is the cell that the macrophage activates. It has a special receptor known as the APC (antigen presenting cell). When the foreign antigen is consumed by the macrophage, some parts are presented outside and the "naive-Th-cell" appears. This "naive-Th-cell" then goes through such maturation and signaling and is divided into two divisions: Th-1, which is primarily responsible for cytotoxic T lymphocytes signaling to destroy the cell or the bacteria, and Th-2, which is primarily responsible for allergy reactions because the primary signaling is for B-cells, which are responsible for producing antibodies. Instead of performing phagoyctosis, T-helper cells serve as mediators, enabling other cells to carry out their vital role as effective killing machines.

Grayson Anderson · Answer

undefined Yes, Helper T cells activate B cells and cytotoxic T lymphocytes to kill infected host cells. Helper T cells do not phagocytize bacteria and viruses.