Journal
CYTOKINE & GROWTH FACTOR REVIEWS
Volume 15, Issue 2-3, Pages 169-194Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cytogfr.2004.01.002
Keywords
cytokines; vitamins; biological therapeutics; tumor growth; apoptosis; gene expression
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Cytokines and vitamins play a central role in controlling neoplastic cell growth. The interferon (IFN) family of cytokines regulates antiviral, anti-tumor, antimicrobial, differentiation, and immune responses in mammals. Significant advances have been made with respect to IFN-induced signal transduction pathways and antiviral responses. However, the IFN-induced anti-tumor actions are poorly defined. Although IFNs themselves inhibit tumor growth, combination of IFNs with retinoids (a class of Vitamin A related compounds) strongly potentiates the IFN-regulated anti-tumor action in a number of cell types. To define the molecular mechanisms involved in IFN/retinoid (RA)-induced apoptosis we have employed a genetic approach and identified several critical genes. In this review, I provide the current picture of IFN-RA- and IFN/RA-regulated growth suppressive pathways. In particular, I focus on a novel set of genes, the genes-associated with retinoid-inteferon induced mortality (GRIM). GRIMs may be novel types of tumor suppressors, useful as biological response markers and potentially novel targets for drug development. (C) 2004 Elsevier Ltd. All rights reserved.
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