Page 93 - The Miracle in the Immune System
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Cells On Duty In The System      91

          is because an army without communication would be
          destroyed even before it launched its defence.
            The existence of this molecule alone suffices to
          prove the absurdity of the theory of evolution. This is
          because the prerequisite of the system is the existence
          of this molecule right from the outset. If helper T cells
          failed to alert other cells with the help of this molecule,
          the human body would surrender to viruses.


            Killer T Cells
            The killer T cells are the most efficient elements of
          the defence system. In previous chapters, we have stud-
          ied how viruses are inactivated by proteins called anti-
          bodies. There are cases, however, when antibodies
          cannot reach out to a virus which has invaded a cell. On
          such occasions, killer T cells kill the sick cell which is in-
          vaded by the virus.
            A closer examination of how killer T cells kill sick
          cells would reveal a great wisdom and an artistry in cre-
          ation.
            The killer T cells first have to distinguish between
          normal cells and those in which invaders hide. They deal
          with this problem with the help of the innate system
          (MHC molecules) granted to them. When they locate
          the invaded cell, they secrete a chemical substance. This
          secretion sinks into the membrane of the cell forming a
          hole by lining up sideways in close formation. Following
          this, leaking starts in the cell which is full of pores, and
          the cell dies.
            Killer T cells store this chemical weapon in granular
          form. This way, this chemical weapon is always kept
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