Cited by 44Immunotherapy and Immune ResponsesCancer Immunotherapy and BiomarkersEpigenetics and DNA Methylation

Treatment with 5-aza-2'-deoxycytidine induces expression of NY-ESO-1 and facilitates cytotoxic T lymphocyte-mediated tumor cell killing

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Klar, Agnes S., Gopinadh, Jakka, Kleber, Sascha, Wadle, Andreas, Renner, Christoph·2015·PLoS ONE

Abstract

BACKGROUND: NY-ESO-1 belongs to the cancer/testis antigen (CTA) family and represents an attractive target for cancer immunotherapy. Its expression is induced in a variety of solid tumors via DNA demethylation of the promoter of CpG islands. However, NY-ESO-1 expression is usually very low or absent in some tumors such as breast cancer or multiple myeloma. Therefore, we established an optimized in vitro treatment protocol for up-regulation of NY-ESO-1 expression by tumor cells using the hypomethylating agent 5-aza-2'-deoxycytidine (DAC). METHODOLOGY/PRINCIPAL FINDINGS: We demonstrated de novo induction of NY-ESO-1 in MCF7 breast cancer cells and significantly increased expression in U266 multiple myeloma cells. This effect was time- and dose-dependent with the highest expression of NY-ESO-1 mRNA achieved by the incubation of 10 μM DAC for 72 hours. NY-ESO-1 activation was also confirmed at the protein level as shown by Western blot, flow cytometry, and immunofluorescence staining. The detection and quantification of single NY-ESO-1 peptides presented at the tumor cell surface in the context of HLA-A*0201 molecules revealed an increase of 100% and 50% for MCF7 and U266 cells, respectively. Moreover, the enhanced expression of NY-ESO-1 derived peptides at the cell surface was accompanied by an increased specific lysis of MCF7 and U266 cells by HLA-A*0201/NY-ESO-1(157-165) peptide specific chimeric antigen receptor (CAR) CD8+ T cells. In addition, the killing activity of CAR T cells correlated with the secretion of higher IFN-gamma levels. CONCLUSIONS/SIGNIFICANCE: These results indicate that NY-ESO-1 directed immunotherapy with specific CAR T cells might benefit from concomitant DAC treatment.

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  1. [29]Xin H, Stephans JC, Duan X, Harrowe G, Kim E, Grieshammer U, et al (2000) Identification of a novel aspartic-like protease differentially expressed in human breast cancer cell lines. Biochim Biophys Acta 1501: 125– 137. 10838186
  2. [34]Schirrmann TaP G (2007) Emerging Therapeutic Concepts III: Chimeric Immunoglobulin T Cell Receptors, T-Bodies, in Handbook of Therapeutic Antibodies. In: Dübel S, editor: Wiley-VCH Verlag GmbH.

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Authors
Klar, A. S., Gopinadh, J., Kleber, S., Wadle, A., & Renner, C.
Affiliations
  • University Children's Hospital Zurich (CH)
  • University Hospital Zurich (CH)
  • University Hospital of Basel (CH)
Corresponding author
  • Klar, Agnes S.
  • Renner, Christoph
Venue
PLoS ONE
Published
2015-10-08
Volume
10
Issue
10
Pages
e0139221
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2236008014
Cited by
44
References
46
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 4 · 2022: 7 · 2021: 7 · 2020: 6 · 2019: 4 · 2018: 5 · 2017: 4 · 2016: 3
FWCI
1.97
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • Cancer Research Institute
  • Kanton Zürich
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
NY-ESO-1, decitabine, DNA demethylation, cancer-testis antigens, cancer immunotherapy, chimeric antigen receptor T cells, HLA-A*0201, breast cancer, multiple myeloma, tumor cell killing, interferon-gamma, CpG island promoters
MeSH terms
Decitabine, Antigens, Neoplasm, Azacitidine, Breast Neoplasms, Female, Humans, Immunotherapy, Interferon-gamma, Membrane Proteins, Microscopy, Fluorescence, Multiple Myeloma, Peptides, Receptors, Antigen, T-Cell, T-Lymphocytes, Cytotoxic, HLA-A2 Antigen, Up-Regulation, Cell Line, Tumor, Real-Time Polymerase Chain Reaction, MCF-7 Cells

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