Enzymes are proteins that work to speed up chemical reactions in the body. Enyzmes can work to build up or break down molecules needed for cell growth and maintenance. Shown below is an animation showing an enzyme that joins together two biomolecules to make one larger one.
Many chemotherapy agents function by inhibiting key enzymzes. Examples of agents that inhibit enzymes include the topoisomerase inhibitors Irinotecan and Topotecan and many others.
The activation or supplementation of enzymes that normally function to limit cell growth can also decrease tumor cell division. An example of this type of drug is listed below:
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