Immune Response Induced by Dendritic Cells Pulsed with Tumor Extracts in vivo Inhibit Growth of Implanted Tumor and Reject Challenge of Tumor Cells in Nudes
- VernacularTitle:树突状细胞体外诱导抗肝癌免疫抑制裸鼠人肝癌细胞系HepG2移植瘤发生与生长
- Author:
Mingsong LI
;
Aili YUAN
;
Yali ZHANG
- Publication Type:Journal Article
- Keywords:
dendritic cells;
hepatocellcular carcinoma;
tumor immunity;
anti-tumor vaccine
- From:
Chinese Journal of Cancer Biotherapy
1995;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
To study if the immune response in vivo induced by dendritic cells (DC) pulsed with tumor extract can inhibit the growth of implanted tumor and reject the challenge of tumor cells in nudes, we isolated and purified DC from hepato-cellcular cancer(HCC) patient with combination of granulocyte /macrophage colony stimulating factor and interleukin 4; extracted tumor-associated antigen from human hepatocellcular cancer cell line HepG2 tumor cells; initiated the T lymphocyte with DC pulsed by the TAA to product cytotoxic T lymphocyte (CTL); implanted the CTL to inhibit the growth of implanted tumor in nudes and protected the nudes against the further challenge of HepG2 tumor cells, and further found that the CTL induced by DC pulsed with TAA from HepG2 tumor cells can inhibit the growth of implanted tumor in nudes and protect the nudes against the further challenge of HepG2 tumor cells. The results suggest, as a new concept anti-tumor vaccine, DC pulsed by TAA may play an important role in therapy and prevent against tumor.
