Please use this identifier to cite or link to this item: https://repositorio.unifesp.br/handle/11600/34059
Title: An overview of cancer/testis antigens expression in classical Hodgkin's lymphoma (cHL) identifies MAGE-A family and MAGE-C1 as the most frequently expressed antigens in a set of Brazilian cHL patients
Authors: Inaoka, Riguel Jun [UNIFESP]
Jungbluth, Achim A.
Baiocchi, Otavio Carvalho Guimarães [UNIFESP]
Assis, Mariane C. G. [UNIFESP]
Hanson, Nicole C.
Frosina, Denise
Tassello, Jodie
Bortoluzzo, Adriana B.
Alves, Antonio Correa [UNIFESP]
Colleoni, Gisele Wally Braga [UNIFESP]
Universidade Federal de São Paulo (UNIFESP)
Mem Sloan Kettering Canc Ctr
Inst Ensino & Pesquisa
Keywords: Hodgkins Lymphoma
cancer/testis antigens
Issue Date: 28-Sep-2011
Publisher: Biomed Central Ltd
Citation: Bmc Cancer. London: Biomed Central Ltd, v. 11, 6 p., 2011.
Abstract: Background: Cancer/testis antigens are considered potential targets for immunotherapy due to their tumor-associated expression pattern. Although recent studies have demonstrated high expression of CT45 in classical Hodgkin's lymphomas (cHL), less is known about the expression pattern of other families of CTAs in cHL. We aim to evaluate the expression of MAGE-A family, MAGE-C1/CT7, MAGE-C2/CT10, NY-ESO1 and GAGE family in cHL and to correlate their expression with clinical and prognostic factors in cHL.Methods: Tissue microarray was generated from 38 cHL archival cases from Pathology Department of Universidade Federal de São Paulo. Immunohistochemistry (IHC) was done using the following panel of antibodies: MAGE-A family (MA454, M3H67, 57B and 6C1), GAGE (#26), NY-ESO-1 (E978), MAGE-C1/CT7 (CT7-33) and MAGE-C2/CT10 (CT10#5).Results: We found CTA expression in 21.1% of our cHL series. Among the tested CTAs, only MAGE-A family 7/38 (18.4%) and MAGE-C1/CT7 5/38 (13.2%) were positive in our cHL samples. We found higher CTA positivity in advanced stage (28.6%) compared to early stage (11.8%) disease, but this difference was not statistically significant. Analysis of other clinicopathological subgroups of cHL including histological subtypes, EBV status and response to treatment also did not demonstrate statistical significant differences in CTA expression.Conclusion: We found CTA expression in 21.1% of cHL samples using our panel. Our preliminary findings suggest that from all CTAs included in this study, MAGE-A family and MAGE-C1/CT7 are the most interesting ones to be explored in further studies.
URI: http://repositorio.unifesp.br/handle/11600/34059
ISSN: 1471-2407
Other Identifiers: http://dx.doi.org/10.1186/1471-2407-11-416
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