The Joshi laboratory uses intricate tumor models and advanced approaches to investigate immune cell interactions with developing tumors. The goal is to determine mechanistically why these interactions do not lead to more potent anti-tumor responses and to identify entry points for modulating these interactions through genetic manipulation and therapeutic intervention. Our studies focus on using established complex mouse models to investigate how subtypes of T cells function in the tumor microenvironment and how their interactions with other immune cell types impacts tumor development. Our laboratory combines advanced genetic modeling of mice and immunologic techniques to address fundamental questions in tumor immunology.