Novel therapeutics in oncology stem from a rational design of drugs targeting selective pathways that stimulate and maintain tumor cell growth. Many of these agents are cytostatic in action and also have a limited toxicity profile. However, some can be cytotoxic if they successfully modulate molecular pathways of apoptosis, such as bcl-2. This article discusses points to consider in the design of one class of cytostatic agents, antisense therapy. Our purpose is to stimulate designs that answer the question specifically with regard to proof-of-concept, and the concepts proposed should be viewed as ideas in development rather than firm recommendations.
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