• 1. Department of Hepatobiliary General Surgery, The 451th Hospital of PLA, Xi’an 710054, Shaanxi Province, China;;
  • 2. Department of Specific Diagnosis, The 451th Hospital of PLA, Xi’an 710054, Shaanxi Province, China;;
  • 3. Institute of Digestive Disease, Xijing Hospital, The Fourth Military Medical University, Xi’an 710032, ShaanxiProvince, China;;
  • 4. Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China;
XU Hongyong, Email: hongyongxu@sohu.com
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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