Open Access

Analysis of cytotoxic T lymphocytes from a patient with hepatocellular carcinoma who showed a clinical response to vaccination with a glypican‑3‑derived peptide

  • Authors:
    • Yoshitaka Tada
    • Toshiaki Yoshikawa
    • Manami Shimomura
    • Yu Sawada
    • Mayuko Sakai
    • Hirofumi Shirakawa
    • Daisuke Nobuoka
    • Tetsuya Nakatsura
  • View Affiliations

  • Published online on: July 31, 2013     https://doi.org/10.3892/ijo.2013.2044
  • Pages: 1019-1026
  • Copyright: © Tada et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

Glypican-3 (GPC3), which is a carcinoembryonic antigen, is overexpressed in human hepatocellular carcinoma (HCC). Previously, we performed a phase I clinical trial of GPC3‑derived peptide vaccination in patients with advanced HCC, and reported that GPC3 peptide vaccination is safe and has clinical efficacy. Moreover, we proposed that a peptide‑specific CTL response is a predictive marker of overall survival in patients with HCC who receive peptide vaccination. In this study, we established GPC3‑derived peptide‑specific CTL clones from the PBMCs of an HLA‑A*02:07‑positive patient with HCC who was vaccinated with an HLA‑A2‑restricted GPC3 peptide vaccine and showed a clinical response in the phase I clinical trial. Established CTL clones were analyzed using the IFN‑γ ELISPOT assay and a cytotoxicity assay. GPC3 peptide‑specific CTL clones were established successfully from the PBMCs of the patient. One CTL clone showed cytotoxicity against cancer cell lines that expressed endogenously the GPC3 peptide. The results suggest that CTLs have high avidity, and that natural antigen‑specific killing activity against tumor cells can be induced in a patient with HCC who shows a clinical response to vaccination with the GPC3144‑152 peptide.
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October 2013
Volume 43 Issue 4

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Tada Y, Yoshikawa T, Shimomura M, Sawada Y, Sakai M, Shirakawa H, Nobuoka D and Nakatsura T: Analysis of cytotoxic T lymphocytes from a patient with hepatocellular carcinoma who showed a clinical response to vaccination with a glypican‑3‑derived peptide. Int J Oncol 43: 1019-1026, 2013
APA
Tada, Y., Yoshikawa, T., Shimomura, M., Sawada, Y., Sakai, M., Shirakawa, H. ... Nakatsura, T. (2013). Analysis of cytotoxic T lymphocytes from a patient with hepatocellular carcinoma who showed a clinical response to vaccination with a glypican‑3‑derived peptide. International Journal of Oncology, 43, 1019-1026. https://doi.org/10.3892/ijo.2013.2044
MLA
Tada, Y., Yoshikawa, T., Shimomura, M., Sawada, Y., Sakai, M., Shirakawa, H., Nobuoka, D., Nakatsura, T."Analysis of cytotoxic T lymphocytes from a patient with hepatocellular carcinoma who showed a clinical response to vaccination with a glypican‑3‑derived peptide". International Journal of Oncology 43.4 (2013): 1019-1026.
Chicago
Tada, Y., Yoshikawa, T., Shimomura, M., Sawada, Y., Sakai, M., Shirakawa, H., Nobuoka, D., Nakatsura, T."Analysis of cytotoxic T lymphocytes from a patient with hepatocellular carcinoma who showed a clinical response to vaccination with a glypican‑3‑derived peptide". International Journal of Oncology 43, no. 4 (2013): 1019-1026. https://doi.org/10.3892/ijo.2013.2044