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    Clin Cancer Res. 2007 Jan 15;13(2 Pt 2):733s-740s.

    Developing a rational tumor vaccine therapy for renal cell carcinoma: immune yin and yang.

    Ernstoff MS, Crocenzi TS, Seigne JD, Crosby NA, Cole BF, Fisher JL, Uhlenhake JC, Mellinger D, Foster C, Farnham CJ, Mackay K, Szczepiorkowski ZM, Webber SM, Schned AR, Harris RD, Barth RJ Jr, Heaney JA, Noelle RJ.

    Source

    Medical Oncology Immunotherapy Group, Dartmouth-Hitchcock Medical Center, Lebanon, NH 03756, USA. Marc.S.Emstoff@Hitchcock.org

    Abstract

    In patients with progressive malignancy, the natural balance between proinflammatory (Yang) and inhibitory (regulatory or Yin) immune pathways is disrupted and favors cancer-specific immune suppression. Therapy with interleukin 2 (IL-2) can mobilize immune effector cells that recognize and destroy cancer. High-dose IL-2 is the only therapy that has consistently induced complete durable remissions in patients with metastatic renal cell carcinoma (RCC) but only in a few of them. The lack of benefit in most metastatic RCC patients is likely due to the ineffective manipulation of other immune circuits critical in regulating tumor cytotoxic pathways. The limited clinical activity of IL-2, RCC vaccines, and other immune therapies to date leads us to postulate that effective clinical treatment strategies will need to simultaneously enhance proinflammatory pathways and disrupt regulatory pathways. We present preliminary studies in RCC patients to highlight the complexity of the regulatory pathways and our approach to shifting the balance of proinflammatory and regulatory immune pathways using dendritic cell-tumor lysate vaccine followed by cytokine therapy.

    PMID:
    17255302
    [PubMed - indexed for MEDLINE]
    Free full text

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