Abstract
Telomeric repeat-containing RNA (TERRA) and its formation of RNA:DNA hybrids (or TERRA R-loops), influence telomere maintenance, particularly in human cancer cells that use homologous recombination-mediated alternative lengthening of telomeres. Here, we report that the RNA-binding motif protein 14 (RBM14) is associated with telomeres in human cancer cells. RBM14 negatively regulates TERRA expression. It also binds to TERRA and inhibits it from forming TERRA R-loops at telomeres. RBM14 depletion has several effects, including elevated TERRA levels, telomeric R-loops, telomere dysfunction-induced DNA damage foci formation, particularly in the presence of DNA replication stress, pRPA32 accumulation at telomeres and telomere signal-free ends. Thus, RBM14 protects telomere integrity via modulating TERRA levels and its R-loop formation at telomeres.
| Original language | English |
|---|---|
| Pages (from-to) | 12242-12260 |
| Number of pages | 19 |
| Journal | Nucleic Acids Research |
| Volume | 51 |
| Issue number | 22 |
| DOIs | |
| State | Published - Dec 11 2023 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- DNA/genetics
- Humans
- Neoplasms/genetics
- R-Loop Structures
- RNA, Long Noncoding/genetics
- RNA-Binding Motifs
- RNA/genetics
- Telomere Homeostasis
- Telomere/genetics
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Cell Culture Facility
Campbell, PhD, K. S. (Director) & Yan PhD , Y. (Manager)
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