Evidence map›Paper›PMID 34727877›Full record

ArticleBMC cancer2021

Knockdown of circSMAD2 inhibits the tumorigenesis of gallbladder cancer through binding with eIF4A3.

Yiyu Qin, Yongliang Zheng, Cheng Huang, Yuanyuan Li, Min Gu, Qin Wu

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.2field-weighted citation impact, top 46% 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

5 citing papers in PubMed, 5 citations in OpenAlex.

  1. Estradiol Promotes Endometriosis ProgressionCurrent pharmaceutical biotechnology · 2026
    Article
  2. Article
  3. Translation of circular RNAs.Nucleic acids research · 2025
    Review
  4. Article
  5. CircRNA and ferroptosis in human disease: Insights for new treatments.Animal models and experimental medicine · 2023
    Review
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

6 authors at 1 institution in 1 country.

Yiyu QinClinical Medical College, Jiangsu Vocational College of Medicine, 283 Jiefang South Road, Yancheng, 224005, Jiangsu, China. qyy128@163.com.
Yongliang ZhengRehabilitation College, Jiangsu Vocational College of Medicine, Yancheng, 224005, Jiangsu, China.
Cheng HuangClinical Medical College, Jiangsu Vocational College of Medicine, 283 Jiefang South Road, Yancheng, 224005, Jiangsu, China.
Yuanyuan LiClinical Medical College, Jiangsu Vocational College of Medicine, 283 Jiefang South Road, Yancheng, 224005, Jiangsu, China.
Min GuClinical Medical College, Jiangsu Vocational College of Medicine, 283 Jiefang South Road, Yancheng, 224005, Jiangsu, China.
Qin WuClinical Medical College, Jiangsu Vocational College of Medicine, 283 Jiefang South Road, Yancheng, 224005, Jiangsu, China.
Jiangsu Vocational College of Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGallbladder cancer (GBC) is the seventh most common gastrointestinal cancer worldwide. This study aimed to investigate the function of circSMAD2 in GBC.

methodsTo investigate the function of circSMAD2 in GBC, the level of circSMAD2 in GBC cells was detected by RT-qPCR. CCK-8 assay was performed to investigate the cell viability. Cell apoptosis was tested by flow cytometry. In addition, transwell assay was used to detect the cell migration and invasion. RIP and RNA pull-down were used to explore the relation among circSMAD2, eIF4A3 and SMAD2. Meanwhile, xenograft mice model was established to investigate the function of circSMAD2 in GBC.

resultsThe data revealed that circSMAD2 was upregulated in GBC, and circSMAD2 knockdown significantly inhibited the viability of GBC cells. In addition, circSMAD2 siRNA notably induced the apoptosis in GBC cells. The migration and invasion of GBC cells were obviously suppressed in the presence of circSMAD2 siRNA. Meanwhile, circSMAD2 suppressed the binding between eukaryotic translation initiation factor 4A3 (eIF4A3) and SMAD2 through binding with eIF4A3. Knockdown of circSMAD2 notably inhibited the expression of SMAD2 in GBC cells, and SMAD2 overexpression partially reversed the anti-tumor effect of circSMAD2 knockdown. Finally, circSMAD2 siRNA significantly inhibited the tumor growth of GBC in vivo.

conclusionKnockdown of circSMAD2 inhibits the tumorigenesis of gallbladder cancer through binding with eIF4A3. Thus, our study provided a new strategy for the treatment of GBC.

Indexed as

AnimalsApoptosisCell Line, TumorCell MovementCell SurvivalDEAD-box RNA HelicasesEukaryotic Initiation Factor-4AFemaleFlow CytometryGallbladder NeoplasmsGene Knockdown TechniquesGene SilencingHumansMaleMiceMice, Inbred BALB CDEAD-box RNA HelicasesEIF4A3 protein, humanEukaryotic Initiation Factor-4ARNA, CircularRNA, Small InterferingSmad2 ProteincircSMAD2eIF4A3SMAD2

Identifiers

PMID34727877
PMCPMC8564960
OpenAlexW3211069111

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.