Targeted tumor cell death induced by autologous tumor-specific T lymphocyte recognition of wild-type p53-derived peptides

Autologous tumor-specific T lymphocyte (ATTL) lines were derived from the peripheral blood mononuclear cells (PBMC) of a healthy volunteer with human leukocyte antigen (HLA) -A*t0201. These lines were achieved using interleukins -1β, -2, -4, and -6 and the p53-based peptide from the 264-272 sequence of the wild-type p53 protein with a strong affinity against HLA-A*0201. The frequencies of CD3+, CD4+, and CD8+ lymphocytes were 94-96%, 30-34%, and 69-74%, respectively. ATTLs killed most of the T2 cells pulsed with p53-derived peptide, but not against the T2 cells non-pulsed or pulsed with an irrelevant peptide. ATTLs also killed TKB-14 cells, which have been derived from human glioblastoma multiforme, and exhibited HLA-A*0201 molecule and immunohistochemical accumulation of p53 protein. These cytotoxic activities were inhibited by anti-CD3, anti-CD8, and anti-class I antibodies. These findings suggested that th ese ATTL lines might include CTL populations, which could recognize p53-derived peptide on HLA-A*0201 and the p53-based peptide may play as an antigen on HLA-A*0201. When tumor antigens would be more analyzed in the future, ATTL could be induced without the primary-cultured cells from tumor tissue and could be applied for cancer therapy. © Springer 2005.

Full Text

Duke Authors

Cited Authors

  • Tsurushima, H; Yoshii, Y; Leong, KW; Ohno, T

Published Date

  • 2006

Published In

Volume / Issue

  • 76 / 2

Start / End Page

  • 99 - 104

International Standard Serial Number (ISSN)

  • 0167-594X

Digital Object Identifier (DOI)

  • 10.1007/s11060-005-4172-6