DOI: 10.11958/20150353
Experimental study of WT1 specific CD8+T cells in the treatment of breast cancer
WANG Xinchao
HAO Suhong
GAO Yingtang
QIU Lijun
ZHAO Shuang
HAN Lu
Abstract：Objective To investigate the feasibility of Wilms’tumor gene 1 (WT1)-specific CD8+T cells from periph?eral blood for the treatment of breast cancer by detecting the killing activity of WT1 specific CD8+T cells on breast cancer cells. Methods Flow cytometry was used to detect WT1-specific CD8+T cells in the peripheral blood of 20 samples from HLA-A2 seropositive healthy donors, which were isolated by WT1/MHC streptamer magnetic beads and cultured. The func?tion of WT1-specific CD8+ T cells were analysis by cytotoxicity assay. Results Twelve of 20 healthy donors had naive WT1-specific CD8+T-cell frequencies of>0.5%, and 4 of 20 even>1.0%of all CD8+T cells. After positive selection by magnetic cell separation, a purity of up to 80%can be achieved. WT1 specific CD8+T cells can specifically kill breast can?cer cell line with WT1 polypeptide. Conclusion WT1 specific CD8+T cells can be detected in peripheral blood of healthy volunteers. WT1 specific CD8+T cells have killing effect on breast cancer cells, suggesting the feasibility of adoptive immu?notherapy for breast cancer.
Keywords：breast neoplasmsimmunotherapyadoptiveCD8-positive T-lymphocytesWilms’tumor gene 1cell im-munotherapy
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 397-400 )