Tetraspanin CD82 is a protein that belongs to the tetraspanin superfamily, which are cell surface proteins involved in various cellular functions such as cell adhesion, migration, and signaling. CD82 is known to be a tumor suppressor and plays a role in regulating cell proliferation, invasion, and metastasis in various types of cancer. Research in this area focuses on understanding the molecular mechanisms of how CD82 functions in the context of cancer development and progression, as well as exploring its potential as a therapeutic target for cancer treatment. Studies have also investigated the role of CD82 in immune cell function, stem cell biology, and other physiological processes.