Ma Tianming, Zhang Na, Zheng Weiping, et al. Prediction and identification of H-2Kd restricted CTL epitope derived from breast cancer associated antigen ROR1[J]. Journal of Chongqing Medical University, 2016,41(2):168-171.
Ma Tianming, Zhang Na, Zheng Weiping, et al. Prediction and identification of H-2Kd restricted CTL epitope derived from breast cancer associated antigen ROR1[J]. Journal of Chongqing Medical University, 2016,41(2):168-171. DOI: 10.13406/j.cnki.cyxb.000839.
Objective:To predict and identify breast cancer associated antigen receptor tyrosine kinase like orphan receptor 1(ROR1)H-2Kd restricted cytotoxic T lymphocyte(CTL)epitopes and to provide experimental data for breast cancer immunotherapy based on ROR1. Methods:ROR1 specific H-2Kd restricted CTL epitopes were predicted by bio-informatic methods. Four candidate epitopes with relatively high scores were artificially synthesized and purified. Analysis of binding ability of the candidate epitope peptides with H-2Kd molecules was carried out by peptide binding assay. ELISA assay was used to check interferon-γ(IFN-γ)and interleukin-12(IL-12). Results:Four candidate epitopes had high affinities of H-2Kd;the FI values were more than 1.5 when concentrations were more than 30 μg/ml. ELISA results showed that ROR1(NYMFPSQGI)could stimulate spleen lymphocyte secreting IFN-γ and IL-12.Conclusion:ROR1(NYMFPSQGI)is a H-2Kd restricted CTL epitope of breast cancer associated antigen ROR1. This study provides an experimental data for breast cancer immunotherapy based on ROR1.
关键词
乳腺癌ROR1CTL表位生物信息学方法
Keywords
breast cancerreceptor tyrosine kinase like orphan receptor 1cytotoxic T lymphocyte epitopebioinformatics