According to a considerable amount of publications apoptosis plays an
important role for radio- and chemotherapy. The most important results
related to this issue will be described in 2 independent articles, co
vering the following topics: Part I: I. definition, morphology, bioche
mical processes, II. clinical relevant detection assays, III. signal t
ransduction. Part II: significance of apoptosis for radio- and chemoth
erapy.