articleCancer ResearchOct 1, 2007BRONZE OA

Dynamics of the Immune Reaction to Pancreatic Cancer from Inception to Invasion

Cancer Research Institute of the Slovak Academy of Sciences · Cape Town HVTN Immunology Laboratory / Hutchinson Centre Research Institute of South Africa · +4 more institutions

PubMed
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Abstract

The dynamics of cancer immunosurveillance remain incompletely understood, hampering efforts to develop immunotherapy of cancer. We evaluated the evolving in vivo immune response to a spontaneous tumor in a genetically defined mouse model of pancreatic ductal adenocarcinoma from the inception of preinvasive disease to invasive cancer. We observed a prominent leukocytic infiltration even around the lowest grade preinvasive lesions, but immunosuppressive cells, including tumor-associated macrophages, myeloid-derived suppressor cells (MDSC), and regulatory T cells (Treg), dominated the early response and persisted through invasive cancer. Effector T cells, however, were scarce in preinvasive lesions, found in only…

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