Dendritic Cells Pulsed with Recombinant Human Hsp70 and Mage-3 Peptide from Breast Cancer Induce Specific Anti-tumor Immune Responses
- VernacularTitle:rhHSP70联合Mage-3抗原肽修饰树突状细胞诱导的抗乳腺癌作用
- Author:
Bin LI
;
Peng CHEN
;
Jianyun ZHENG
- Publication Type:Journal Article
- Keywords:
Breast cancer;
T lymphocytes;
Heat shock protein;
Dendritic Cells
- From:
Journal of Kunming Medical University
2013;(8):36-39
- CountryChina
- Language:Chinese
-
Abstract:
Objective To make use of the characteristics of presenting and processing tumor antigen of Dendritic cells pulsed with recombinant human Hsp70 and Mage-3 peptide to enhance killing capability of breast neoplasms. Methods Autologous dendritic cells were isolated from PBMC and then stimuiated in vitro with GM-CSF and IL-4.Dendritic cells were loaded with Mage-3 peptide;at the same time Hsp70L1 was added. The specific groupings each induce generation of tumor specific cytotoxic assay with ELISA. Results DCs pulsed with Mage-3 peptide enhanced the growth expansion of CTL, and promoted the secretion of cytokines such as TNF-αand IL-6. DCs pulsed with recombinant human Hsp70 and Mage-3 peptide had cytotoxicity against human breast cancer cells MCF-7.Conclusions DCs pulsed with recombinant human Hsp70 and Mage -3 peptide have higher biological activities. Modified DCs can stimulate the proliferation of lymphoeytes,present effectively tumor antigen to stimulate generation of speeific CTLs. Dendritic cells pulsed with recombinant human Hsp70 and Mage-3 peptide have high ability to kill breast cancer cells.
