ArticleMedComm2025
mTORC1-USP30-LEF1 Cascade Regulates Cancer Stemness and Malignant Progression Through Mitonuclear Crosstalk.
Article in MedComm, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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.
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.
Who cites it
2 citing papers in PubMed.
- Article
- mTORC1-USP30-LEF1 Cascade Regulates Cancer Stemness and Malignant Progression Through Mitonuclear Crosstalk.MedComm · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
16 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
USP30, a ubiquitin-specific protease, primarily characterized as a mitochondrial deubiquitinase regulating mitophagy, has not been previously reported to have nuclear functions. In this study, we demonstrate that USP30 is present in both mitochondrial and nuclear compartments. Nutrient deprivation triggers USP30 nuclear translocation via an N-terminal nuclear localization signal (NLS), mediated through suppression of mTORC1-dependent phosphorylation at serine 104, a modification constraining nuclear entry. Nuclear USP30 acts as a tumor suppressor by inhibiting cancer stemness and chemoresistance in triple-negative breast cancer (TNBC) cells. Mechanistically, USP30 directly interacts with and deubiquitinates the transcription factor TCF/LEF1 at K379 and K382 residues, disrupting recruitment of CBP/P300 co-activators to the β-catenin/LEF1 complex. This abolishes β-catenin/LEF1 transactivation and suppresses WNT signaling. Clinically, USP30 is downregulated in TNBC and cancer stem cells (CSCs), with notably reduced nuclear levels in cancer tissues. Overexpression of nuclear USP30 markedly reduces lung metastatic burden in TNBC mouse models. These findings uncover a novel role for nuclear USP30 in regulating cancer stemness and suggest that targeting the dynamic relocalization of USP30 from mitochondria to the nucleus could offer new therapeutic strategies for breast cancer metastasis.
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Registered trials
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.