Journal
CANCER IMMUNOLOGY IMMUNOTHERAPY
Volume 58, Issue 12, Pages 2025-2029Publisher
SPRINGER
DOI: 10.1007/s00262-009-0709-4
Keywords
Mucin 1; GM allotypes; Humoral immunity; Breast cancer
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Funding
- US Department of Defense
- Estonia Science Foundation [6726]
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High levels of antibodies to mucin 1 (MUC1), a membrane-bound glycoprotein that is overexpressed in adenocarcinomas, are associated with good prognosis in patients with breast cancer. The aim of the present investigation was to determine whether GM and KM allotypes-genetic markers of IgG heavy chains and kappa-type light chains, respectively-contribute to the magnitude of natural antibody responsiveness to MUC1 in patients with breast cancer. A total of 153 Caucasian subjects with breast cancer were allotyped for several GM and KM markers. These subjects were also characterized for IgG and IgM antibodies to MUC1. Anti-MUC1 IgG antibody levels in subjects who were carriers of the immunoglobulin gamma 2 allele GM 23 were significantly higher than in those who were noncarriers (P = 0.003). These results could potentially divide the population into high or low responders to MUC1, which has important implications for MUC1-based immunotherapeutic interventions in breast cancer.
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