Cancer cells are abnormal cells that have uncontrollably grown and multiplied within the body, leading to the formation of tumors or masses. These cells can invade surrounding tissues and spread to other parts of the body, causing serious health problems. Research in the area of cancer cells focuses on understanding the biology of these cells, identifying their genetic and molecular characteristics, and developing targeted therapies to specifically kill cancer cells while sparing healthy cells. This research aims to improve early detection, diagnosis, and treatment options for cancer patients, ultimately leading to better outcomes and survival rates.