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[Specifics anti-tumor immunity induced by gene immunization with ectopic hCGbeta encoding gene]
Li-xin Wang1, Jin Wu, Qing-dong Guan
1Shanghai Gene Immunization and Vaccine Research Center, Department of Immunology, Shanghai Medical College of Fudan University, Shanghai 200032, China.
Zhonghua Zhong Liu Za Zhi [Chinese Journal of Oncology]
|August 19, 2003
Summary
Gene immunization with human chorionic gonadotropin beta (hCGbeta) encoding DNA successfully induced specific anti-tumor immunity in mice. This approach demonstrated significant inhibition of tumor growth both in vitro and in vivo.
Area of Science:
- Immunology
- Molecular Biology
- Oncology
Context:
- Gene immunization offers a novel strategy for cancer therapy.
- Ectopic expression of human chorionic gonadotropin beta (hCGbeta) in tumors can serve as a potential target for anti-tumor immunity.
Purpose:
- To investigate the anti-tumor immune response generated by gene immunization using a gene encoding ectopic hCGbeta.
- To evaluate the efficacy of this immunization strategy in inhibiting tumor growth.
Summary:
- Mice immunized with plasmid TR421-hCGbeta developed high levels of anti-hCGbeta antibodies and specific cellular immune responses, including lympho-proliferation and cytotoxic T lymphocyte (CTL) activity.
- The sera from immunized mice inhibited tumor cell growth in vitro.
- In vivo studies showed a significant reduction in tumor weight and formation rate in mice immunized with TR421-hCGbeta compared to mock DNA controls.
Impact:
- This study highlights the potential of gene immunization with ectopic hCGbeta as a therapeutic strategy against tumors expressing this antigen.
- The findings suggest that eliciting specific humoral and cellular immunity against hCGbeta can effectively control tumor progression.