Objective To investigate the effect of tumor associated glycoprotein-72 (TAG-72) redirected T lymphocytes on breast cancer cells.
Methods Peripheral blood mononuclear cells (PBMCs)were isolated from healthy volunteers. The recombinant vector anti-TAG-72-scFv-CD3ζ-pcDNA 3.0 were transfected into PBMCs by lipofectamineTM2000 (transfection group), PBMCs transfected with plasmid pcDNA 3.0 as control group. MCF-7 and Bcap37 cells were cocultivated with PBMCs of transfection group and control group, respectively, and antitumor response of G1 block was observed.
Results G1 block rate of MCF-7 cells in transfection group was (82.3±6.9)%, which was significantly higher than that in control group 〔(43.4±3.9)%, P<0.05〕. G1 block rate of Bcap37 cells in transfection group was (51.3±4.7)%, and not differed from that in control group 〔(45.6±2.5)%, P>0.05〕.
Conclusion TAG-72 redirected T lymphocytes can inhibit the cell proliferation of TAG-72 positive breast cancer cells, and it may provide valuable tools for the cellular immunotherapy.
Citation: XU Hongyong,DING Rong,XU Li,LI Kaizong. Antitumor Responses of TAG-72 Redirected T Lymphocytes to Breast Cancer. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2012, 19(12): 1298-1301. doi: Copy