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- Title
T cell homeostatic proliferation elicits effective antitumor autoimmunity.
- Authors
Dummer, Wolfgang; Niethammer, Andreas G; Baccala, Roberto; Lawson, Brian R; Wagner, Norbert; Reisfeld, Ralph A; Theofilopoulos, Argyrios N
- Abstract
Development of tumor immunotherapies focuses on inducing autoimmune responses against tumor-associated self-antigens primarily encoded by normal, unmutated genes. We hypothesized that such responses could be elicited by T cell homeostatic proliferation in the periphery, involving expansion of T cells recognizing self-MHC/peptide ligands. Herein, we demonstrate that sublethally irradiated lymphopenic mice transfused with autologous or syngeneic T cells showed tumor growth inhibition when challenged with melanoma or colon carcinoma cells. Importantly, the antitumor response depended on homeostatic expansion of a polyclonal T cell population within lymph nodes. This response was effective even for established tumors, was characterized by CD8(+) T cell-mediated tumor-specific cytotoxicity and IFN-gamma production, and was associated with long-term memory. The results indicate that concomitant induction of the physiologic processes of homeostatic T cell proliferation and tumor antigen presentation in lymph nodes triggers a beneficial antitumor autoimmune response.
- Publication
The Journal of clinical investigation, 2002, Vol 110, Issue 2, p185
- ISSN
0021-9738
- Publication type
Journal Article
- DOI
10.1172/JCI15175