Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Scanlan, M.J. et al.

Scanlan, Gout, Gordon, Williamson, Stockert, Gure, Jäger, Chen, Mackay, O'Hare, Old,

Humoral immunity to human breast cancer: antigen definition and quantitative analysis of mRNA expression.

The ability of the immune system to recognize structurally altered, amplified or aberrantly expressed proteins can be used to identify molecules of etiologic relevance to cancer and to define targets for cancer immunotherapy. In the current study, ninety-four distinct antigens reactive with serum IgG from breast cancer patients were identified by immunoscreening breast cancer-derived cDNA expression libraries (SEREX). A serological profile was generated for each antigen on the basis of reactivity with allogeneic sera from normal individuals and cancer patients, and mRNA expression profiles for coding sequences were assembled based upon the tissue distribution of expressed sequence tags, Northern blots and real-time RT-PCR. Forty antigens reacted exclusively with sera from cancer patients. These included well-characterized tumor antigens, e.g. MAGE-3, MAGE-6, NY-ESO-1, Her2neu and p53, as well as newly-defined breast cancer antigens, e.g. kinesin 2, TATA element modulatory factor 1, tumor protein D52 and MAGE D, and novel gene products, e.g. NY-BR-62, NY-BR-75, NY-BR-85, and NY-BR-96. With regard to expression profiles, two of the novel gene products, NY-BR-62 and NY-BR-85, were characterized by a high level of testicular mRNA expression, and were overexpressed in 60% and 90% of breast cancers, respectively. In addition, mRNA encoding tumor protein D52 was overexpressed in 60% of breast cancer specimens, while transcripts encoding SNT-1 signal adaptor protein were downregulated in 70% of these cases. This study adds to the growing list of breast cancer antigens defined by SEREX and to the ultimate objective of identifying the complete repertoire of immunogenic gene products in human cancer (the cancer immunome).[1]

References

Humoral immunity to human breast cancer: antigen definition and quantitative analysis of mRNA expression. Scanlan, M.J., Gout, I., Gordon, C.M., Williamson, B., Stockert, E., Gure, A.O., Jäger, D., Chen, Y.T., Mackay, A., O'Hare, M.J., Old, L.J. Cancer Immun. (2001) [Pubmed]

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