Evidence map›Paper›PMID 40553690›Full record

ArticleCell chemical biology2025

Ribosomal RNA transcription regulates splicing through ribosomal protein RPL22.

Wenjun Fan, Hester Liu, Gregory C Stachelek, Asma Begum, Catherine E Davis, Tony E Dorado, Glen Ernst, William C Reinhold, Busra Ozbek, Qizhi Zheng and 4 more

Abstract read
In one paragraph

Article in Cell chemical biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. Article
  2. RNA Polymerase 1 inhibitors against African trypanosomesAntimicrobial agents and chemotherapy · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors.

Wenjun FanDepartment of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Hester LiuDepartment of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Gregory C StachelekDepartment of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Asma BegumDepartment of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Catherine E DavisDepartment of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Tony E DoradoLieber Institute for Brain Development, Baltimore, MD 21205, USA.
Glen ErnstLieber Institute for Brain Development, Baltimore, MD 21205, USA.
William C ReinholdDevelopmental Therapeutics Branch, NCI, NIH, Bethesda, MD 20892, USA.
Busra OzbekDepartment of Pathology and Urology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Qizhi ZhengDepartment of Pathology and Urology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Angelo M De MarzoDepartment of Pathology and Urology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
N V RajeshkumarSidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
James C BarrowLieber Institute for Brain Development, Baltimore, MD 21205, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Marikki LaihoDepartment of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00014 Helsinki, Finland. Electronic address: mlaiho1@jhmi.edu.

Funding

Translational Research Central ServicesP30CA006973 · NCI · JOHNS HOPKINS UNIVERSITY · PI WILLIAM George NELSON · 1985 to 2026
$208.6M
Mechanistic analyses of a novel RNA polymerase I transcription checkpointR01GM121404 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI LAIHO, MARIKKI, SCHNEIDER, DAVID ALAN · 2017 to 2020
$2.0M
The Chemistry-Biology Interface Program at Johns Hopkins UniversityT32GM149382 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI STEVEN E ROKITA · 2023 to 2026
$1.4M
Translation Rewiring Underlines Drug Resistance to Lethal Targeted Ribosome Biogenesis Therapeutics in CancerK99CA279786 · NCI · JOHNS HOPKINS UNIVERSITY · PI FAN, WENJUN · 2024 to 2025
$219k
NCI NIH HHS K99 CA279786NCI NIH HHS P30 CA006973NIGMS NIH HHS R01 GM121404NIGMS NIH HHS T32 GM149382
6 · The paper itself

Abstract

Ribosome biosynthesis is a cancer vulnerability targeted by inhibiting RNA polymerase I (Pol I) transcription. We developed specific Pol I inhibitors that activate a ribotoxic stress pathway to uncover drivers of sensitivity. Integrating multi-omics and drug response data from a large cancer cell panel, we found that RPL22 frameshift mutations confer Pol I inhibitor sensitivity. Mechanistically, RPL22 interacts directly with 28S rRNA and mRNA splice junctions, acting as a splicing regulator. RPL22 deficiency, intensified by 28S rRNA sequestration, promotes splicing of its paralog RPL22L1 and the p53 negative regulator MDM4. Both chemical and genetic inhibition of rRNA synthesis broadly remodel mRNA splicing controlling hundreds of targets. Notably, RPL22-dependent alternative splicing is reversed by Pol I inhibition, revealing a non-canonical ribotoxic stress-initiated tumor suppressive pathway. This study uncovers a robust mechanism linking rRNA synthesis activity to splicing, coordinated by the ribosomal protein RPL22.

Indexed as

Ribosomal ProteinsRNA, RibosomalRNA SplicingTranscription, GeneticCell Line, TumorHumansRNA Polymerase IRibosomal ProteinsRNA Polymerase IRNA, RibosomalcancerMDM4nucleolusribosome biogenesisRPL22RPL22L1rRNA synthesissmall-moleculesplicingtherapeutics

Identifiers

PMID40553690
PMCPMC12277005

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.