Transposable element expression in tumors is associated with immune infiltration and increased antigenicity
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Abstract
Profound global loss of DNA methylation is a hallmark of many cancers. One potential consequence of this is the reactivation of transposable elements (TEs) which could stimulate the immune system via cell-intrinsic antiviral responses. Here, we develop REdiscoverTE , a computational method for quantifying genome-wide TE expression in RNA sequencing data. Using The Cancer Genome Atlas database, we observe increased expression of over 400 TE subfamilies, of which 262 appear to result from a proximal loss of DNA methylation. The most recurrent TEs are among the evolutionarily youngest in the genome, predominantly expressed from intergenic loci, and associated with antiviral or DNA damage responses. Treatment of glioblastoma cells with a demethylation agent results in both increased TE expression and de novo presentation of TE-derived peptides on MHC class I molecules. Therapeutic reactivation of tumor-specific TEs may synergize with immunotherapy by inducing inflammation and the display of potentially immunogenic neoantigens.
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DAC treatment could induce expression of retrotransposons normally silenced by DNA methylation, which could augment tumor immunogenicity.
“DAC treatment could induce expression of retrotransposons normally silenced by DNA methylation, which could also augment tumor immunogenicity10–14,99.”
From Multi-omic analysis of hepatocellular carcinoma reveals aberrant cis-regulatory changes and dysregulated retrotransposons with prognostic potential (2025) · cites this paper as [14]
Mounting evidence suggests that retrotransposon dysregulation in cancer is associated with active immune responses.
“Mounting evidence suggests that retrotransposon dysregulation in cancer is associated with active immune responses14,102.”
From Multi-omic analysis of hepatocellular carcinoma reveals aberrant cis-regulatory changes and dysregulated retrotransposons with prognostic potential (2025) · cites this paper as [14]
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- Authors
- Kong, Y., Rose, C. M., Cass, A. A., Williams, A. G., Darwish, M., Lianoglou, S., Haverty, P. M., Tong, A.-J., Blanchette, C., Albert, M. L., Mellman, I., Bourgon, R., Greally, J., Jhunjhunwala, S., & Chen-Harris, H.
- Affiliations
- Albert Einstein College of Medicine (US)
- Genentech (US)
- University of California, Los Angeles (US)
- ORCID
- Venue
- Nature Communications
- Published
- 2019-11-19
- Volume
- 10
- Issue
- 1
- Pages
- 5228-5228
- ISSN
- 2041-1723 (ISSN-L)
- PMC
- PMC6864081
- OpenAlex
- W2989996227
- Cited by
- 285
- References
- 9
- Citations by year
- 2026: 36 · 2025: 57 · 2024: 50 · 2023: 45 · 2022: 32 · 2021: 43 · 2020: 17 · 2019: 4 · 2018: 1
- FWCI
- 7.94
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Nature Communications (publishedVersion, cc-by)
- bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
- Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
- Keywords
- transposable elements, transposable element expression, DNA methylation loss, tumor immune infiltration, neoantigens, MHC class I antigen presentation, glioblastoma, demethylation, antiviral response, DNA damage response, immunotherapy, tumor immunology
- MeSH terms
- Antigens, Neoplasm, DNA Transposable Elements, Humans, Immunotherapy, Neoplasms, Gene Expression, Sequence Analysis, RNA, DNA Methylation, Computational Biology, Gene Expression Profiling, Cell Line, Tumor
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