Evidence map›Paper›PMID 29343848›Full record

ArticleOncogene2018

A novel protein encoded by the circular form of the SHPRH gene suppresses glioma tumorigenesis.

Maolei Zhang, Nunu Huang, Xuesong Yang, Jingyan Luo, Sheng Yan, Feizhe Xiao, Wenping Chen, Xinya Gao, Kun Zhao, Huangkai Zhou and 4 more

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 457 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
457citing papers in PubMed, 1 pooled it
38.1field-weighted citation impact, top 1% of its field
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

457 citing papers in PubMed, 1 synthesis or guideline pooled it, 751 citations in OpenAlex.

  1. Pooled it
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  8. Review
  9. Article
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  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Circular RNAs: from transcriptional noise to engineered therapeutics.Frontiers in epigenetics and epigenomics · 2026
    Review
  18. Microproteins: Uncovering Hidden Layers of the Proteome.Methods in molecular biology (Clifton, N.J.) · 2026
    Review
  19. Article
  20. Article

397 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 3 institutions in 1 country.

Maolei ZhangDepartment of Neurosurgery, The 1st Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
Nunu HuangDepartment of Neurosurgery, The 1st Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
Xuesong YangDepartment of Neurosurgery, The 1st Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
Jingyan LuoForevergen Biosciences Center, Guangzhou, Guangdong Province, PR China.
Sheng YanDepartment of Neurosurgery, The 1st Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
Feizhe XiaoDepartment of Scientific Research Section, The 1st Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
Wenping ChenDepartment of Neurosurgery, The 1st Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
Xinya GaoDepartment of Neurosurgery, The 1st Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
Kun ZhaoDepartment of Neurosurgery, The 1st Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
Huangkai ZhouDepartment of Neurosurgery, The 1st Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China.
Ziqiang LiGuangzhou Geneseed Anti-Aging Research Institute, Guangzhou, Guangdong Province, PR China.
Liu MingGuangzhou Geneseed Anti-Aging Research Institute, Guangzhou, Guangdong Province, PR China.
Bo XieDepartment of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
Nu ZhangDepartment of Neurosurgery, The 1st Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, PR China. zhangnu2@mail.sysu.edu.cn.
Sun Yat-sen University · CNKey Laboratory of Guangdong Province · CNThe First Affiliated Hospital, Sun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Circular RNAs (circRNAs) are recognized as functional non-coding transcripts in eukaryotic cells. Recent evidence has indicated that even though circRNAs are generally expressed at low levels, they may be involved in many physiological or pathological processes, such as gene regulation, tissue development and carcinogenesis. Although the 'microRNA sponge' function is well characterized, most circRNAs do not contain perfect trapping sites for microRNAs, which suggests the possibility that circRNAs have functions that have not yet been defined. In this study, we show that a circRNA containing an open reading frame (ORF) driven by the internal ribosome entry site (IRES) can translate a functional protein. The circular form of the SNF2 histone linker PHD RING helicase (SHPRH) gene encodes a novel protein that we termed SHPRH-146aa. Circular SHPRH (circ-SHPRH) uses overlapping genetic codes to generate a 'UGA' stop codon, which results in the translation of the 17 kDa SHPRH-146aa. Both circ-SHPRH and SHPRH-146aa are abundantly expressed in normal human brains and are down-regulated in glioblastoma. The overexpression of SHPRH-146aa in U251 and U373 glioblastoma cells reduces their malignant behavior and tumorigenicity in vitro and in vivo. Mechanistically, SHPRH-146aa protects full-length SHPRH from degradation by the ubiquitin proteasome. Stabilized SHPRH sequentially ubiquitinates proliferating cell nuclear antigen (PCNA) as an E3 ligase, leading to inhibited cell proliferation and tumorigenicity. Our findings provide a novel perspective regarding circRNA function in physiological and pathological processes. Specifically, SHPRH-146aa generated from overlapping genetic codes of circ-SHPRH is a tumor suppressor in human glioblastoma.

Indexed as

Genes, Tumor SuppressorBrain NeoplasmsCarcinogenesisCell ProliferationDNA HelicasesGlioblastomaGliomaHEK293 CellsHigh-Throughput Nucleotide SequencingHumansRNARNA, CircularSequence Analysis, RNATumor Cells, CulturedUbiquitin-Protein LigasesDNA HelicasesRNARNA, CircularSHPRH protein, humanUbiquitin-Protein Ligases

Identifiers

PMID29343848
OpenAlexW2783029521

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.