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Study of therapeutic adjuvant-free protein vaccine-HPV16Z-Hsp65-E6/E7
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Abstract:
To study the biological effects of the HPV16Z-Hsp65-E6/E7 fusion protein vaccine on the tumor associated with HPV16 infection. Methods: We tested the cellular immune responsive intensity to the vaccine by the lymphocyte proliferation and CTL response, and studied the therapeutic effect of the vaccine on mouse TC-1 cell transplanted cancer in vivo and the influence on mouse lifetime. Results: The spleen lymphocytes from the C57BL/6 mouse immunized by the Hsp65-E6/E7 vaccine could proliferate obviously in the presence of the protein and TC-1 tumor cell could be lysed specifically by immune activated lymphocytes in vitro. This animal therapeutic experiment in vivo showed that the vaccine suppressed the growth of TC-1 cell transplanted tumor remarkably. Conclusion: The recombined vaccine can induce specific cellular immune response in vitro and suppress HPV16 positive TC-1 tumor cell growth obviously in vivo.
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