ArticlePloS one2023
Pharmacological induction of translational readthrough of nonsense mutations in the retinoblastoma (RB1) gene.
Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 5 citations in OpenAlex.
- Novel eRF3a degrader enhances gentamicin-induced premature termination codon readthrough in epidermolysis bullosa.Molecular therapy. Nucleic acids · 2025Article
- Review
- Therapeutic Potential of Translational Readthrough at Disease-Associated Premature Termination Codons From Tumor Suppressor Genes.IUBMB life · 2025Review
- Therapeutic targeting ofUpsala journal of medical sciences · 2024Review
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The retinoblastoma protein (Rb) is encoded by the RB1 tumor suppressor gene. Inactivation of RB1 by inherited or somatic mutation occurs in retinoblastoma and various other types of tumors. A significant fraction (25.9%) of somatic RB1 mutations are nonsense substitutions leading to a premature termination codon (PTC) in the RB1 coding sequence and expression of truncated inactive Rb protein. Here we show that aminoglycoside G418, a known translational readthrough inducer, can induce full-length Rb protein in SW1783 astrocytoma cells with endogenous R579X nonsense mutant RB1 as well as in MDA-MB-436 breast carcinoma cells transiently transfected with R251X, R320X, R579X or Q702X nonsense mutant RB1 cDNA. Readthrough was associated with increased RB1 mRNA levels in nonsense mutant RB1 cells. Induction of full-length Rb protein was potentiated by the cereblon E3 ligase modulator CC-90009. These results suggest that pharmacological induction of translational readthrough could be a feasible strategy for therapeutic targeting of tumors with nonsense mutant RB1.
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