Abstract
Antibodies to cancer antigens can often be detected in the sera of patients, although the mechanism of the underlying humoral immune response is poorly understood. Using immunoscreening of tumor-derived cDNA expression libraries (SEREX), we identified human histone deacetylase 3 (HDAC3) as serologically defined antigen in colon cancer. Closely related HDAC1 and HDAC2 do not elicit humoral response in colon cancer patients. We show that the C-terminal region of HDAC3 protein lacking the homology to other Class I HDAC contains at least 3 distinct B-cell epitopes that are recognized by the serum antibodies. HDAC3 in combination with other SEREX antigens may become a useful molecular biomarker with diagnostic or prognostic value for a subset of colon cancer patients. (Supplementary material for this article can be found on the International Journal of Cancer website at http://www. interscience.wiley.com/ jpages/0020-7136/suppmat/index.html).
Original language | English (US) |
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Pages (from-to) | 800-806 |
Number of pages | 7 |
Journal | International Journal of Cancer |
Volume | 117 |
Issue number | 5 |
DOIs | |
State | Published - Dec 10 2005 |
Externally published | Yes |
Keywords
- Antibodies
- Epitopes
- HDAC3
- Serology
ASJC Scopus subject areas
- Oncology
- Cancer Research