Article ; Online: Longitudinal autoantibody responses against tumor-associated antigens decrease in breast cancer patients according to treatment modality.
BMC cancer
2018 Volume 18, Issue 1, Page(s) 119
Abstract: Background: Metastatic breast cancer (BCa) is most often diagnosed months after completion of treatment of the primary tumor when a patient reports physical symptoms. Besides a physical examination, no other alternative recurrence screening method is ... ...
Abstract | Background: Metastatic breast cancer (BCa) is most often diagnosed months after completion of treatment of the primary tumor when a patient reports physical symptoms. Besides a physical examination, no other alternative recurrence screening method is recommended for routine follow-up care. Detection of autoantibodies against tumor-associated antigens (TAAs) has demonstrated promise for distinguishing healthy women from patients diagnosed with primary BCa. However, it is unknown what changes occur to patient autoantibody levels during and after treatment. Methods: Three serial blood draws were collected from 200 BCa patients: before treatment, 6 and 12 months after surgery. Patients were categorized according to treatment regimen, including surgery, chemotherapy, radiation, trastuzumab and hormonal therapies. The longitudinal samples were assayed for autoantibody responses against 32 conformation-carrying TAAs using a Luminex multiplex bead assay. Results: The treatment modality groups that had the greatest decrease in autoantibody response levels were radiation + hormonal therapy; radiation + chemotherapy; and radiation + hormonal therapy + chemotherapy. For these three treatment groups, autoantibody responses against 9 TAAs (A1AT, ANGPTL4, CAPC, CST2, DKK1, GFRA1, GRN, LGALS3 and LRP10) were significantly reduced at 12 months after surgery compared to before treatment. One TAA, GRP78, had a significantly increased autoantibody response after 12 months. Conclusions: Single treatment regimens alone did not significantly alter autoantibodies levels against the studied TAAs. Radiation treatment was the common denominator of the three most affected groups for significant changes in autoantibody response levels. |
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MeSH term(s) | Adult ; Aged ; Antigens, Neoplasm/blood ; Autoantibodies/blood ; Biomarkers, Tumor/blood ; Breast Neoplasms/blood ; Breast Neoplasms/drug therapy ; Breast Neoplasms/pathology ; Breast Neoplasms/radiotherapy ; Combined Modality Therapy ; Early Detection of Cancer ; Female ; Humans ; Middle Aged ; Neoplasm Metastasis ; Neoplasm Recurrence, Local/blood ; Neoplasm Recurrence, Local/drug therapy ; Neoplasm Recurrence, Local/pathology ; Trastuzumab/administration & dosage |
Chemical Substances | Antigens, Neoplasm ; Autoantibodies ; Biomarkers, Tumor ; Trastuzumab (P188ANX8CK) |
Language | English |
Publishing date | 2018--31 |
Publishing country | England |
Document type | Journal Article ; Research Support, N.I.H., Extramural |
ISSN | 1471-2407 |
ISSN (online) | 1471-2407 |
DOI | 10.1186/s12885-018-4022-5 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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