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Impact Journals, Oncotarget, 24(5), p. 12472-12508, 2014

DOI: 10.18632/oncotarget.2998

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Classification of current anticancer immunotherapies

Journal article published in 2014 by Lorenzo Galluzzi, Erika Vacchelli, José-Manuel Bravo-San Pedro, José-Manuel Bravo-San Pedro, Aitziber Buqué, Laura Senovilla, Elisa Elena Baracco, Norma Bloy, Francesca Castoldi, Jean-Pierre Abastado, Patrizia Agostinis, Ron N. Apte, Fernando Aranda, Maha Ayyoub, Philipp Beckhove and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

During the past decades, anticancer immunotherapy has evolved from a promising therapeutic option to a robust clinical reality. Many immunotherapeutic regimens are now approved by the US Food and Drug Administration and the European Medicines Agency for use in cancer patients, and many others are being investigated as standalone therapeutic interventions or combined with conventional treatments in clinical studies. Immunotherapies may be subdivided into “passive” and “active” based on their ability to engage the host immune system against cancer. Since the anticancer activity of most passive immunotherapeutics (including tumor-targeting monoclonal antibodies) also relies on the host immune system, this classification does not properly reflect the complexity of the drug-host-tumor interaction. Alternatively, anticancer immunotherapeutics can be classified according to their antigen specificity. While some immunotherapies specifically target one (or a few) defined tumor-associated antigen(s), others operate in a relatively non-specific manner and boost natural or therapy-elicited anticancer immune responses of unknown and often broad specificity. Here, we propose a critical, integrated classification of anticancer immunotherapies and discuss the clinical relevance of these approaches.