T cells work differently to B cells. Though they are similar that they both clone themselves and differentiate, however are activated by binding to the antigen rather than via antibodies.
ACTIVATION (PRIMARY RESPONSE)
1) a body cell is invaded by the foreign body and the cell displays the pathogens antigens on its surface -antigenic presentation
2) T cells with the appropriate specific receptors bind to the antigens surface
3) The cell then differentiates into KILLER cells and HELPER cells and clone by mitosis. Some of each then differentiate and develop into MEMORY cells
T HELPER- Secrete cytokines which stimulate B Cell division and activate macrophages
T KILLER- Secrete perforins which punch holes in membranes of infected cell killing the cell along with pathogen.
Comments
No comments have yet been made