Cancer Immunology, Immunotherapy

, Volume 59, Issue 5, pp 747–757 | Cite as

Topoisomerase II alpha as a universal tumor antigen: antitumor immunity in murine tumor models and H-2Kb-restricted T cell epitope

  • Jung-Sun Park
  • Hye-Sung Kim
  • Mi-Young Park
  • Chang-Hyun Kim
  • Yeun-Jun Chung
  • Yong-Kil Hong
  • Tai-Gyu KimEmail author
Original Paper


Topoisomerase II alpha (Top2α) is an attractive candidate to be used as a tumor antigen for cancer immunotherapy, because it is abundantly expressed in various tumors and serves as a target for a number of chemotherapeutic agents. In this study, we demonstrated the immunogenicity of Top2α, using dendritic cells (DC) electroporated with RNA encoding the Top2α C-terminus (Top2αCRNA/DC). Top2αCRNA/DC were able to demonstrate in vitro stimulation of T cells from mice that were previously vaccinated with Top2α-expressing tumor lysate-pulsed DC. Vaccination with Top2αCRNA/DC induced Top2α-specific T cell responses in vivo as well as antitumor effects in various murine tumor models including MC-38, B16F10, and GL26. DC pulsed with p1327 (DSDEDFSGL), defined as an epitope presented by H-2Kb, also induced Top2α-specific immune responses and antitumor effects. Based on these data, Top2α is suggested to be a universal target for cancer immunotherapy.


Topoisomerase II alpha RNA electroporation Dendritic cell Vaccine Tumor antigen 



This study was supported by a grant from the Korea Research Foundation (Grant KRF 2006-005-J00602).


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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Jung-Sun Park
    • 1
  • Hye-Sung Kim
    • 1
  • Mi-Young Park
    • 1
  • Chang-Hyun Kim
    • 1
  • Yeun-Jun Chung
    • 1
  • Yong-Kil Hong
    • 2
  • Tai-Gyu Kim
    • 1
    • 3
    Email author
  1. 1.Department of Microbiology and Immunology, College of MedicineThe Catholic University of KoreaSeoulKorea
  2. 2.Department of Neurosurgery, College of MedicineThe Catholic University of KoreaSeoulKorea
  3. 3.Catholic Hematopoietic Stem Cell BankThe Catholic University of KoreaSeoulKorea

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