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RANTES (Regulated-on-activation-normal-T-cell-expressed-and-secreted) is a member of the "intercrine/chemokine" family of cytokines, has been previously shown to be chemotactic for monocytes and T cells of memory/helper phenotype. RANTES has been shown to cause the release of histamine from basophils and activates eosinophils. It also binds to CCR1, CCR3, CCR4 and CCR5 (1). This CC-chemokine enhances antigen-specific T helper (Th) type-1 responses against HIV-1 (2). CC chemokines are small inducible proteins that are related to interleukin 8. In lung adenocarcinoma, RANTES is a predictor of survival while that of interleukin (IL)-8 is associated with a poor prognosis. In several models, tumorigenesis is abolished by RANTES, while it is facilitated by IL-8. Site-directed mutagenesis indicated that regulation of RANTES promoter activity required two nuclear factor (NF)-kappaB response elements but not its activator protein (AP)-1 binding sites (3).