Open Access

Expansion of quiescent lung adenocarcinoma CD8+ T cells by MUC1-8-mer peptide-T2 cell-β2 microglobulin complexes

  • Authors:
    • J. A. Atzin-Méndez
    • J. S. López-González
    • R. Báez
    • M. C. Arenas-Del Angel
    • L. F. Montaño
    • D. Silva-Adaya
    • R. Lascurain
    • P. Gorocica
  • View Affiliations

  • Published online on: October 13, 2015     https://doi.org/10.3892/or.2015.4328
  • Pages: 33-42
  • Copyright: © Atzin-Méndez et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Adoptive immunotherapy requires the isolation of CD8+ T cells specific for tumor-associated antigens, their expansion in vitro and their transfusion to the patient to mediate a therapeutic effect. MUC1 is an important adenocarcinoma antigen immunogenic for T cells. The MUC1-derived SAPDTRPA (MUC1-8-mer) peptide is a potent epitope recognized by CD8+ T cells in murine models. Likewise, the T2 cell line has been used as an antigen-presenting cell to activate CD8+ T cells, but so far MUC1 has not been assessed in this context. We evaluated whether the MUC1-8-mer peptide can be presented by T2 cells to expand CD25+CD8+ T cells isolated from HLA-A2+ lung adenocarcinoma patients with stage III or IV tumors. The results showed that MUC1-8-mer peptide‑loaded T2 cells activated CD8+ T cells from cancer HLA-A2+ patients when anti-CD2, anti-CD28 antibodies and IL-2 were added. The percentage of CD25+CD8+ T cells was 3-fold higher than those in the non-stimulated cells (P=0.018). HLA-A2+ patient cells showed a significant difference (2.3-fold higher) in activation status than HLA-A2+ healthy control cells (P=0.04). Moreover, 77.6% of MUC1-8-mer peptide-specific CD8+ T cells proliferated following a second stimulation with MUC1-8-mer peptide-loaded T2 cells after 10 days of cell culture. There were significant differences in the percentage of basal CD25+CD8+ T cells in relation to the cancer stage; this difference disappeared after MUC1-8-mer peptide stimulation. In conclusion, expansion of CD25+CD8+ T cells by MUC1-8 peptide-loaded T2 cells plus costimulatory signals via CD2, CD28 and IL-2 can be useful in adoptive immunotherapy.
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Spandidos Publications style
Atzin-Méndez JA, López-González JS, Báez R, Arenas-Del Angel MC, Montaño LF, Silva-Adaya D, Lascurain R and Gorocica P: Expansion of quiescent lung adenocarcinoma CD8+ T cells by MUC1-8-mer peptide-T2 cell-β2 microglobulin complexes. Oncol Rep 35: 33-42, 2016
APA
Atzin-Méndez, J.A., López-González, J.S., Báez, R., Arenas-Del Angel, M.C., Montaño, L.F., Silva-Adaya, D. ... Gorocica, P. (2016). Expansion of quiescent lung adenocarcinoma CD8+ T cells by MUC1-8-mer peptide-T2 cell-β2 microglobulin complexes. Oncology Reports, 35, 33-42. https://doi.org/10.3892/or.2015.4328
MLA
Atzin-Méndez, J. A., López-González, J. S., Báez, R., Arenas-Del Angel, M. C., Montaño, L. F., Silva-Adaya, D., Lascurain, R., Gorocica, P."Expansion of quiescent lung adenocarcinoma CD8+ T cells by MUC1-8-mer peptide-T2 cell-β2 microglobulin complexes". Oncology Reports 35.1 (2016): 33-42.
Chicago
Atzin-Méndez, J. A., López-González, J. S., Báez, R., Arenas-Del Angel, M. C., Montaño, L. F., Silva-Adaya, D., Lascurain, R., Gorocica, P."Expansion of quiescent lung adenocarcinoma CD8+ T cells by MUC1-8-mer peptide-T2 cell-β2 microglobulin complexes". Oncology Reports 35, no. 1 (2016): 33-42. https://doi.org/10.3892/or.2015.4328