title: Global gene expression profiling in interleukin-12-induced activation of CD8(+) cytotoxic T lymphocytes against mouse mammary Carcinoma.
abstract: Interleukin-12 (IL-12) is a critical cytokine representing the link between the cellular and humoral branches of host immune defense apparatus. IL-12-induced cytotoxic lymphocyte (CTL) development is a central mechanism in immune responses against intracellular infectious agents as well as malignant growth. However, the molecular basis of tumor-specific CTL responses mediated by IL-12 remains poorly defined. In this study, we addressed this issue in a comprehensive manner to probe into IL-12-induced anti-tumor responses by global gene expression profiling of mRNA expression in CD8(+) T cells in a transplantable syngeneic mouse mammary carcinoma model treated or not with recombinant IL-12. A strong tumor regression was induced by the IL-12 treatment. An introspection of differential gene expression at an early stage of the IL-12-initiated CTL activation reveals interesting genes and molecular pathways that may account for the marked tumor regression, and is likely to provide a rich source of potential targets for further research and development of effective therapeutic modalities.
authors.affiliation: Department of Microbiology and Immunology, Weill Medical College of Cornell University, New York 10021, USA.
authors.forename: Shanjin
authors.initials: S
authors.lastname: Cao
authors.forename: Zhaoying
authors.initials: Z
authors.lastname: Xiang
authors.forename: Xiaojing
authors.initials: X
authors.lastname: Ma
mesh_terms: D000276:Adjuvants, Immunologic / Q000008:administration & dosage*; D000818:Animals; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology*; D002277:Carcinoma / Q000235:genetics / Q000276:immunology*; D005260:Female; D020869:Gene Expression Profiling; D015972:Gene Expression Regulation, Neoplastic / Q000187:drug effects* / Q000276:immunology; D007111:Immunity, Cellular / Q000187:drug effects / Q000276:immunology; D018664:Interleukin-12 / Q000008:administration & dosage* / Q000276:immunology; D008213:Lymphocyte Activation / Q000187:drug effects* / Q000276:immunology; D008325:Mammary Neoplasms, Experimental / Q000235:genetics / Q000276:immunology*; D051379:Mice; D008807:Mice, Inbred BALB C; D009368:Neoplasm Transplantation; D020411:Oligonucleotide Array Sequence Analysis
chemical_list: D000276:Adjuvants, Immunologic; D018664:Interleukin-12