Enhanced antitumor immunotherapeutic effect of B-cell-based vaccine transduced with modified adenoviral vector containing type 35 fiber structures
- Authors
- Kim, E-K; Seo, H-S; Chae, M-J; Jeon, I-S; Song, B-Y; Park, Y-J; Ahn, H. M.; Yun, C-O; Kang, C-Y
- Issue Date
- Jan-2014
- Publisher
- SPRINGERNATURE
- Keywords
- antitumor immunotherapy; B-cell-based vaccine; modified adenovirus (Ad-k35)
- Citation
- GENE THERAPY, v.21, no.1, pp.106 - 114
- Indexed
- SCIE
SCOPUS
- Journal Title
- GENE THERAPY
- Volume
- 21
- Number
- 1
- Start Page
- 106
- End Page
- 114
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/26568
- DOI
- 10.1038/gt.2013.65
- ISSN
- 0969-7128
- Abstract
- For successful clinical tumor immunotherapy outcomes, strong immune responses against tumor antigens must be generated. Cell-based vaccines compromise one strategy with which to induce appropriate strong immune responses. Previously, we established a natural killer T-cell (NKT) ligand-loaded, adenoviral vector-transduced B-cell-based anticancer cellular vaccine. To enhance tumor antigen delivery to B cells, we established a modified adenoviral vector (Ad-k35) that encoded a truncated form of the breast cancer antigen Her2/neu (Ad-k35HM) in which fiber structure was substituted with adenovirus serotype 35. We observed increased tumor antigen expression with Ad-k35HM in both human and murine B cells. In addition, an Ad-k35HM-transduced B-cell vaccine elicited strong antigen-specific cellular and humoral immune responses that were further enhanced with the additional loading of soluble NKT ligand KBC009. An Ad-k35HM-transduced, KBC009-loaded B-cell vaccine efficiently suppressed the in vivo growth of established tumors in a mouse model. Moreover, the vaccine elicited human leukocyte antigen (HLA)-A2 epitope-specific cytotoxic T-cell responses in B6.Cg (CB)-Tg (HLA-A/H2-D) 2Enge/Jat mice. These findings indicated that the Ad-k35 could be appropriate for the preclinical and clinical development of B-cell-based anticancer immunotherapies.
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