ArticleJournal of experimental & clinical cancer research : CR2025
A novel polypeptide encoded by circSPIRE1 promotes prostate cancer proliferation and migration by restraining the ubiquitin-dependent degradation of LRP5.
Article in Journal of experimental & clinical cancer research : CR, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 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
4 citing papers in PubMed.
- CRISPR decodes the RNA regulatory network in prostate cancer: A review from mechanisms to precision therapeutics.Non-coding RNA research · 2026Review
- Decoding the functional network of circular RNAs encoding proteins in hepatocellular carcinoma: from carcinogenesis to clinical transformation.Journal of advanced research · 2026Review
- Review
- [The mitochondrial protein encoded by circUSP25 promotes colon cancer cell proliferation and migration].Nan fang yi ke da xue xue bao = Journal of Southern Medical UniversityArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors.
Funding
Abstract
backgroundCircular RNAs (circRNAs) are increasingly implicated in tumor progression, but the roles of protein-coding circRNAs remain largely unexplored. This study characterizes a novel circRNA-encoded protein, rtSPIRE1, and investigates its mechanistic role in prostate cancer proliferation and migration, as well as its diagnostic and therapeutic potential.
methodsRNA microarray identified circSPIRE1 in prostate cancer tissues. The translation of rtSPIRE1 was confirmed by polysome profiling analysis, Western blotting, and mass spectrometry. Expression levels of circSPIRE1 and rtSPIRE1 were analyzed via qPCR, FISH, and immunohistochemistry. Gain- and loss-of-function assays were performed to evaluate their effects on cell proliferation and migration. Mechanistic studies were conducted using RNA pulldown, RIP, co-immunoprecipitation, and molecular docking.
resultsWe identified rtSPIRE1, a novel protein encoded by circSPIRE1 through rolling circle translation, whose expression is regulated by hnRNPA1-mediated symmetric dimethylation. Both circSPIRE1 and rtSPIRE1 were significantly upregulated in prostate cancer tissues and cell lines, with higher expression levels correlating with worse prognosis. Mechanistically, rtSPIRE1 stabilized LRP5 by inhibiting its ubiquitination and degradation, leading to sustained activation of the PI3K/AKT signaling pathway, which ultimately promotes prostate cancer cell proliferation and migration.
conclusionsOur findings identify rtSPIRE1 as a critical oncogenic protein encoded by circSPIRE1 through rolling circle translation, with its expression regulated by hnRNPA1-mediated symmetric dimethylation. Mechanistically, rtSPIRE1 promotes proliferation and migration by stabilizing LRP5 and activating the PI3K/AKT signaling pathway. Together, circSPIRE1 and rtSPIRE1 represent promising diagnostic biomarkers and therapeutic targets for prostate cancer.
Indexed as
Identifiers
What OpenQuestion holds
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.