Researchers at Tel Aviv University a significant portion of cancer cells are “aneuploid” – i.e. have an abnormal number of chromosomes. It means they are more sensitive to certain anti-cancer treatments. Patients with that type of cancer could respond to these individually targeted treatments.

https://www.aftau.org/news_item/changes-in-the-chromosomes-of-cancer-cells-may-increase-their-sensitivity-to-anti-cancer-drugs/

https://www.jpost.com/health-and-wellness/article-820780