T-cell research focuses on studying the various functions and behaviors of T-cells, a type of white blood cell that plays a crucial role in the immune system. T-cells are responsible for recognizing and attacking foreign pathogens such as viruses and bacteria, as well as cancer cells. Research in this area aims to understand how T-cells are activated, regulated, and interact with other immune cells, with the ultimate goal of developing new therapies for various diseases, including autoimmune disorders, infectious diseases, and cancer. Techniques such as flow cytometry, gene editing, and immunohistochemistry are commonly used in T-cell research to study their functions and responses in different contexts.