期刊
BREAST CANCER RESEARCH
卷 6, 期 4, 页码 R322-R328出版社
BMC
DOI: 10.1186/bcr794
关键词
breast cancer; cell death; dendritic cells; immunotherapy; tumor immunity
类别
资金
- NCI NIH HHS [CA89440, R01 CA089440] Funding Source: Medline
- NATIONAL CANCER INSTITUTE [R01CA089440] Funding Source: NIH RePORTER
Background Early clinical trials, mostly in the setting of melanoma, have shown that dendritic cells (DCs) expressing tumor antigens induce some immune responses and some clinical responses. A major difficulty is the extension to other tumors, such as breast carcinoma, for which few defined tumor-associated antigens are available. We have demonstrated, using both prostate carcinoma and melanoma as model systems, that DCs loaded with killed allogeneic tumor cell lines can induce CD8(+) T cells to differentiate into cytotoxic T lymphocytes (CTLs) specific for shared tumor antigens. Methods The present study was designed to determine whether DCs would capture killed breast cancer cells and present their antigens to autologous CD4(+) and CD8(+) T cells. Results We show that killed breast cancer cells are captured by immature DCs that, after induced maturation, can efficiently present MHC class I and class II peptides to CD8(+) and CD4(+) T lymphocytes. The elicited CTLs are able to kill the target cells without a need for pretreatment with interferon gamma. CTLs can be obtained by culturing the DCs loaded with killed breast cancer cells with unseparated peripheral blood lymphocytes, indicating that the DCs can overcome any potential inhibitory effects of breast cancer cells. Conclusion Loading DCs with killed breast cancer cells may be considered a novel approach to breast cancer immunotherapy and to identification of shared breast cancer antigens.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据