Immunologic correlates of the abscopal effect in a patient with melanoma

Michael A. Postow, Margaret K. Callahan, Christopher A. Barker, Yoshiya Yamada, Jianda Yuan, Shigehisa Kitano, Zhenyu Mu, Teresa Rasalan, Matthew Adamow, Erika Ritter, Christine Sedrak, Achim A. Jungbluth, Ramon Chua, Arvin S. Yang, Ruth Ann Roman, Samuel Rosner, Brenna Benson, James P. Allison, Alexander M. Lesokhin, Sacha GnjaticJedd D. Wolchok

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1105 Scopus citations


The abscopal effect is a phenomenon in which local radiotherapy is associated with the regression of metastatic cancer at a distance from the irradiated site. The abscopal effect may be mediated by activation of the immune system. Ipilimumab is a monoclonal antibody that inhibits an immunologic checkpoint on T cells, cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4). We report a case of the abscopal effect in a patient with melanoma treated with ipilimumab and radiotherapy. Temporal associations were noted: tumor shrinkage with antibody responses to the cancer-testis antigen NY-ESO-1, changes in peripheral-blood immune cells, and increases in antibody responses to other antigens after radiotherapy. (Funded by the National Institutes of Health and others.)

Original languageEnglish (US)
Pages (from-to)925-931
Number of pages7
JournalNew England Journal of Medicine
Issue number10
StatePublished - Mar 8 2012


ASJC Scopus subject areas

  • Medicine(all)

Cite this

Postow, M. A., Callahan, M. K., Barker, C. A., Yamada, Y., Yuan, J., Kitano, S., Mu, Z., Rasalan, T., Adamow, M., Ritter, E., Sedrak, C., Jungbluth, A. A., Chua, R., Yang, A. S., Roman, R. A., Rosner, S., Benson, B., Allison, J. P., Lesokhin, A. M., ... Wolchok, J. D. (2012). Immunologic correlates of the abscopal effect in a patient with melanoma. New England Journal of Medicine, 366(10), 925-931.