ArticleInternational journal of molecular sciences2020
Many Different LINE-1 Retroelements Are Activated in Bladder Cancer.
Article in International journal of molecular sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 21 citations in OpenAlex.
- Extrachromosomal DNA in urothelial carcinoma: mechanisms and clinical applications.Nature reviews. Urology · 2026Review
- Multiomic profiling links L1 retrotransposition to genomic instability and ecDNA in bladder cancer.Nature communications · 2026Article
- Article
- Exploring Potential for Repurposing Antiretroviral Drugs Etravirine and Efavirenz in Prostate and Bladder Cancer.Pharmaceuticals (Basel, Switzerland) · 2025Article
- Review
- Discovering single cannabidiol or synergistic antitumor effects of cannabidiol and cytokine-induced killer cells on non-small cell lung cancer cells.Frontiers in immunology · 2024Article
- Global changes in chromatin accessibility and transcription in growth hormone-secreting pituitary adenoma.Endocrine · 2022Article
- Melatonin: Regulation of Viral Phase Separation and Epitranscriptomics in Post-Acute Sequelae of COVID-19.International journal of molecular sciences · 2022Review
- Analysis of epigenetic features characteristic of L1 loci expressed in human cells.Nucleic acids research · 2022Article
- Application of third-generation sequencing in cancer research.Medical review (2021) · 2021Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Human genomes contain about 100,000 LINE-1 (L1) retroelements, of which more than 100 are intact. L1s are normally tightly controlled by epigenetic mechanisms, which often fail in cancer. In bladder urothelial carcinoma (UC), particularly, L1s become DNA-hypomethylated, expressed and contribute to genomic instability and tumor growth. It is, however, unknown which individual L1s are activated. Following RNA-immunoprecipitation with a L1-specific antibody, third generation nanopore sequencing detected transcripts of 90 individual elements in the VM-Cub-1 UC line with high overall L1 expression. In total, 10 L1s accounted for >60% of the reads. Analysis of five specific L1s by RT-qPCR revealed generally increased expression in UC tissues and cell lines over normal controls, but variable expression among tumor cell lines from bladder, prostate and testicular cancer. Chromatin immunoprecipitation demonstrated active histone marks at L1 sequences with increased expression in VM-Cub-1, but not in a different UC cell line with low L1 expression. We conclude that many L1 elements are epigenetically activated in bladder cancer in a varied pattern. Our findings indicate that expression of individual L1s is highly heterogeneous between and among cancer types.
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