The three Es of cancer immunoediting.
After a century of controversy, the notion that the immune system regulates cancer development is experiencing a new resurgence. An overwhelming amount of data from animal models--together with compelling data from human patients--indicate that a functional cancer immunosurveillance process indeed exists that acts as an extrinsic tumor suppressor. However, it has also become clear that the immune system can facilitate tumor progression, at least in part, by sculpting the immunogenic phenotype of tumors as they develop. The recognition that immunity plays a dual role in the complex interactions between tumors and the host prompted a refinement of the cancer immunosurveillance hypothesis into one termed "cancer immunoediting." In this review, we summarize the history of the cancer immunosurveillance controversy and discuss its resolution and evolution into the three Es of cancer immunoediting--elimination, equilibrium, and escape.
Dunn
Gavin P
GP
Department of Pathology and Immunology, Center for Immunology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
Old
Lloyd J
LJ
Schreiber
Robert D
RD
D000818:Animals; D006801:Humans; D007157:Immunologic Surveillance; D009369:Neoplasms / Q000276:immunology*