Blastogenic factor

The two most common in vitro test procedures used are lymphocyte proliferation and cell migration inhibition tests. The basic theory behind both of these is that T-cells have receptors on their surface which will each respond to a specific antigen. In the course of the response, soluble substances (cytokines or lymphokines), principally blastogenic factor and migration inhibition factor, which act on other cells, including other T-cells, are produced and released. 

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