Page 115 - The Miracle of the Blood and Heart

Macrophage HLA antigen (self)
T-cell

Antigen T-cells in lymph
Receptor tissue
Processed antigen (foreign)
Sensitized T-cell
enlarges and divides.

Helper Killer T- Delayed type hypersen- Suppressor Memory
T-cells cells sitivity T-cells T-cells T-cells
They release the proteins They They secrete They inhibit helper T-cell They recog-
that permit killer T-cells destroy chemicals impor- and killer T-cell activity, nize the
to multiply, increase
phagocytosis and permit antigens by tant in allergies phagocytosis and anti- original
B-cells to develop into damaging and tissue trans- body production by antigens.
plasma cells. their DNA. plants. plasma cells.
As the above diagram shows, T-cells fulfill their different roles to perfection,
providing a flawless defense.

Killer
T-cell

Tumor cell Hole opened in tumor
Like human beings, cells also possess abilities such as self-defense and intelligent
behavior. They develop tactics and take precautionary measures. Among
them there is an astonishing division of labor and regulation, thanks to
which they identify enemies, kill them, and pass their “experience” on to
subsequent generations. The killer T-cell seen at the above left recog-
nizes and attaches to the tumor. It then secretes proteins that will
perforate the tumor membrane. To the right, a tumor perforated
by the proteins secreted by the killer T-cell. This hole will soon Adnan
lead to the eradication of the tumor. Oktar

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