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T regulatory cells in cancer: recent advances and therapeutic potential

Elkord, E, Alcantar-Orozco , E, Dovedi , S and Tran, D 2010, 'T regulatory cells in cancer: recent advances and therapeutic potential ' , Expert opinion on biological therapy, 10 (11) , pp. 1573-1586.

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    Abstract

    IMPORTANCE OF THE FIELD: The active suppression of immune responses against tumor is a major barrier to the likely success of cancer immunotherapy. There is now compelling evidence implicating T regulatory cells (Tregs) as being key players driving immune suppression. Elevated frequencies of Tregs within the peripheral circulation and tumor microenvironment of cancer patients correlate with poor prognosis and reduced survival. Understanding the mechanism of Treg elevation is critical for the development of new approaches aiming to modulate the frequency and function of Tregs to enhance the efficacy of cancer immune-based therapies. AREAS COVERED IN THIS REVIEW: This review focuses on current knowledge concerning Tregs in cancer and discusses putative mechanisms which underlie the expansion of Tregs in cancer patients. Additionally, we review current strategies to deplete/suppress Treg activity, the limitations of these strategies and future perspective for improving their efficacy. WHAT THE READER WILL GAIN: An insight of the current aspects concerning Treg subsets in cancer and an overview of recent advances in the identification of Treg-specific markers, in addition to the potential strategies to target Tregs for enhancing antitumor immunity. TAKE HOME MESSAGE: Mechanisms by which Treg functions modulate the immune response to tumors are becoming further understood. However, specific markers to tumor-specific/induced Tregs are yet to be clearly identified, which is a major limitation in optimizing strategies to specifically target Tregs in cancer. Despite this, strategies aimed at modulating Tregs in patients are providing some early encouraging results supporting the overall concept and indicating that further studies are clearly warranted.

    Item Type: Article
    Themes: Health and Wellbeing
    Schools: Colleges and Schools > College of Science & Technology > School of Environment and Life Sciences > Biomedical Research Centre
    Colleges and Schools > College of Science & Technology > School of Environment and Life Sciences
    Journal or Publication Title: Expert opinion on biological therapy
    Publisher: Informa Healthcare
    Refereed: Yes
    ISSN: 1471-2598
    Depositing User: E Elkord
    Date Deposited: 11 Oct 2011 16:27
    Last Modified: 20 Aug 2013 18:13
    URI: http://usir.salford.ac.uk/id/eprint/18231

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