The use of drugs to destroy cancer cells, usually by affecting their ability to grow.
In normal cells, differentiation is the process that changes a general, less specialized cell to a more specialized cell that has a specific job in the body. In tumor cells, differentiation refers to how developed the cells are. Differentiated tumor cells look like normal cells. Undifferentiated, or poorly differentiated, tumor cells don’t have the structure of normal cells, and don’t work the way normal cells do. Poorly differentiated tumor cells usually have a better chance of being malignant.