Leukocyte research focuses on the study of white blood cells, which are a crucial part of the immune system. Leukocytes play a key role in defending the body against infections and diseases by identifying and destroying pathogens. Research in this area typically involves investigating the functions, types, and behaviors of leukocytes, as well as their interactions with other cells and molecules in the body. This field of study is important for understanding immune responses, inflammation, and potential therapies for diseases related to leukocyte dysfunction.