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Transcript
Katherine:
Patients are often confused about the difference between hereditary genetic testing and biomarker testing. Would you explain the difference?
Dr. Ramaswamy:
Absolutely. So, the hereditary genetic testing is what are the genes that you got from your parents? It could be mother or father. And we all think that because it’s breast cancer should be just from mother. It doesn’t matter. It can be from mom or dad. And that influences your breast cancer risk. So, if you have some mutations or some changes in certain genes that can increase your risk of breast cancer. And the well-known ones are the BRCA1, BRCA2, but we also now know a few more like the PALB, ATM and CHEK2 and other things.
So, now when you do have a family history, or sometimes even based on your age and your oral history, we do test for this hereditary risk factors that you might have and that may influence your surgery and some type of treatments that we give as well.
Now as far as biomarkers, biomarkers are more proteins that we check in your tumors. The breast cancer that you already have, and that we may do the biopsies. We look for these tumor proteins that influences the growth of your cancer cells. So, we can target these biomarkers and decrease the growth of your cancer cells.