Apoptosis is a complex process requiring collaboration of several intracellular and extracellular factors. It is known that some intracellular agents controlling cell proliferation and differentiation could modulate apoptosis. Among others, the protein kinases could be involved in control of apoptosis, because it is well known that protein phosphorylation plays important role in this process. Although it is clear that protein kinases may take part in apoptosis but still their role is not obvious.