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Correlation between auto-antibodies to survivin and MUC1 variable number tandem repeats in colorectal cancer
Yu-Qian Wang1, Hai-Hong Zhang, Chen-Lu Liu
1National Engineering Laboratoty of AIDS Vaccine, College of Life Science, Jilin University, Changchun, China.
Aim:
The aim of this study was to investigate the frequency and correlation between auto-antibodies to survivin and MUC1 variable number tandem repeats (VNTR) in colorectal cancer (CRC), which can provide valuable information for the design of immunotherapeutic vaccines for this disease.
Methods:
Enzyme-linked immunosorbent assays (ELISA) were used to examine the level of auto-antibodies against survivin and MUC1 VNTR in the serum of 135 CRC patients and 95 healthy volunteers.
Results:
Using mean absorbance+2 standard deviations (SD) of the healthy samples as a cut-off value, the positive rates of survivin and MUC1 VNTR auto- antibodies in CRC were 31.1% and 18.5%, respectively. Altogether, the survivin and MUC1 VNTR positive samples accounted for 36.3% of the CRC patients, and 7.4% were positive for both.
Conclusion:
A significant positive correlation was found between levels of specific antibodies against survivin and MUC1 VNTR in the serum of CRC patients (r=0.3652, P<0.0001), suggesting that vaccines against both targets would elicit immune responses more effectively.
