Medicine
Epigenetic Regulation of Drug-Metabolizing Enzymes in Cancer Therapy
Quick fact
Tumors can switch off genes for drug-metabolizing enzymes through DNA methylation or histone modifications, making them resistant to chemotherapy, yet this process is reversible—unlike genetic mutations—offering a target for new drugs.
Why this is interesting
You might assume that your genes are fixed, but your cells can turn drug-processing enzymes on or off without changing the DNA code. How could this affect whether a cancer drug works or harms you?