Abstract
Aim: To investigate the associations between genetic polymorphisms in immunorelated genes and PBMC-induced cytotoxicity to breast cancer cell with the treatment of trastuzumab in vitro.Methods: Trastuzumab-mediated cytotoxicity of peripheral blood mononuclear cells (PBMC) from 148 healthy donors and 13 BC patients was analyzed by flow cytometry. 16 SNPs in 7 immunorelated genes were genotyped by Sequenom Mass Array Genotype Platform.Results: Cytotoxicity in the trastuzumab treated PBMCs were significantly higher than those of the basal group. A wide variability in trastuzumab-mediated cytotoxicity was observed, and PBMC from individuals with the CD247 rs16859030 T genotype generated increased cytotoxicity than those with the CC genotype.Conclusion: The CD247 rs16859030 polymorphism affects trastuzumab-mediated cytotoxicity in vitro.
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