A tumor-specific protein is a type of protein that is produced by cancer cells but not by normal cells. These proteins can be unique to certain types of tumors, making them valuable for diagnosing and treating cancer. By identifying these proteins, doctors can better understand the specific characteristics of a tumor and tailor treatments to target it effectively. Researchers are continually studying tumor-specific proteins to develop new therapies, such as targeted therapies and vaccines. For example, some treatments aim to stimulate the immune system to recognize and attack cells expressing these proteins. This approach can lead to more effective and personalized cancer care, improving outcomes for patients.