Abstract

Evasion of the immune-mediated cytotoxicity is an all too common hallmark of cancer. A recent study revealed that cancer vaccination - through the establishment of tumor reactive CD8+ CTLs- drives the evolution of tumor cells toward an immune-resistant and stem-like phenotype and they identified the transcription factor Nanog as a pivotal player in this process. Tellingly, the suppression of Nanog expression via using Nanog siRNA renders tumour cells more sensitive to immune response and leads to reduction of tumour growth. Taken together, the results of these studies support the notion that inhibiting Nanog may have therapeutic implications with respect to immune-based cancer therapy.

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