B Cells Transduced with HPV16 E6/E7-expressing Adenoviral Vector Can Efficiently Induce CTL-dependent Anti-Tumor Immunity

  • Kim, Yun-Sun (Laboratory of Immunology, Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University) ;
  • Ko, Hyun-Jeong (Laboratory of Immunology, Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University) ;
  • Kim, Yeon-Jeong (Laboratory of Immunology, Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University) ;
  • Han, Seung-Hee (Laboratory of Immunology, Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University) ;
  • Lee, Jung-Mi (Laboratory of Immunology, Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University) ;
  • Chang, Woo-Sung (Laboratory of Immunology, Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University) ;
  • Jin, Hyun-Tak (Division of Molecular and Life Sciences, Postech Biotech Center, Pohang University of Science & Technology) ;
  • Sung, Young-Chul (Division of Molecular and Life Sciences, Postech Biotech Center, Pohang University of Science & Technology) ;
  • Kang, Chang-Yuil (Laboratory of Immunology, Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University)
  • Published : 2007.09.30

Abstract

Background: Human papillomavirus (HPV) infection is responsible for cervical cancer, a common cancer in women. Since HPV infection and cancer development are controlled by the host immune system, immunotherapy against HPV can be helpful in preventing or treating HPV-associated cervical cancer. Two oncoproteins of HPV16, E6 and E7, are promising targets for immunotherapy against cervical cancer, because they are constitutively expressed in cervical cancer. Methods: Since cellular vaccines using B cells as well as dendritic cells offer an efficient approach to cancer immunotherapy, we opted to use B cells. We evaluated the immunogenicity and anti-tumor effects of a B cell vaccine transduced with HPV16 E6/E7-expressing adenovirus. Results: Vaccination with HPV16 E6/E7-transduced B cells induced E6/E7-specific $CD8^+$ T cell-dependent immune responses and generated anti-tumor effects against E6/E7-expressing TC-1 tumor. The anti-tumor effect induced by this B cell vaccine was similar to that elicited by DC vaccine, showing that B cells can be used as an alternative to dendritic cells for cellular vaccines. Conclusion: Thisstudy has shown the feasibility of using B cells as immunogenic APCs and the potential for developing prophylactic and therapeutic vaccines against HPV-associated cervical cancer using a B cell vaccine transduced with adenovirus expressing HPV16 E6/E7.

Keywords

References

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