War on Cancer: Tumor Relapse

Biomedical Sciences

By: Ross Keller, 3rd year PhD candidate in the Biomedical Sciences Graduate Program

764px-Chemotherapy_vials_%281%29Chemotherapy is one of the most important aspects of cancer treatment. Although an undesirable, draining procedure, it has extended the lives many cancer patients over many decades.

However, there are significant limitations to drug therapy treatment for cancer. The biggest limitation is the fact that many tumors relapse (return) after treatment. Many don’t understand, however, why or how this happens. How does a tumor come back after it has been treated? And why do promising chemotherapy drugs usually cease to work after relapse?

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