Cloning an Army of T Cells for Immune Defense

View the animation to see how one type of immune cell—the helper T cell—interprets a message presented at the surface of the cell membrane. The message is an antigen, a protein fragment taken from an invading microbe. A series of events unfolds that results in the production of many clones of the helper T cell. These identical T cells can serve as a brigade forming an essential communication network to activate B cells, which make antibodies that will specifically attack the activating antigen.

View Part 1 (6 sec): MOV   |   Download: MOV
View Part 2 (16 sec): MOV   |   Download: MOV
View Part 3 (33 sec): MOV   |   Download: MOV
View Part 4 (36 sec): MOV   |   Download: MOV
View Part 5 (16 sec): MOV   |   Download: MOV
View Part 6 (24 sec): MOV   |   Download: MOV
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