Evidence map›Paper›PMID 22926522›Full record

ArticleOncogene2013

Cell death/proliferation roles for nc886, a non-coding RNA, in the protein kinase R pathway in cholangiocarcinoma.

N Kunkeaw, S H Jeon, K Lee, B H Johnson, S Tanasanvimon, M Javle, C Pairojkul, Y Chamgramol, W Wongfieng, B Gong and 2 more

Abstract read
In one paragraph

Article in Oncogene, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

58 citing papers in PubMed, 84 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Non-coding 886 (Epigenetics · 2024
    Review
  6. Review
  7. Article
  8. Human Vault RNAs: Exploring Their Potential Role in Cellular Metabolism.International journal of molecular sciences · 2024
    Review
  9. Crosstalk between vault RNAs and innate immunity.Molecular biology reports · 2024
    Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Downregulation ofGenes & diseases · 2022
    Article
  15. Review
  16. Are We Studying Non-Coding RNAs Correctly? Lessons from nc886.International journal of molecular sciences · 2022
    Review
  17. Article
  18. Article
  19. International journal of molecular sciences · 2021
    Article
  20. Vault RNAs: hidden gems in RNA and protein regulation.Cellular and molecular life sciences : CMLS · 2021
    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

12 authors at 4 institutions in 3 countries.

N KunkeawDepartment of Biochemistry and Molecular Biology, The University of Texas Medical Branch, Galveston, TX 77555-1072, USA.
S H Jeon
K Lee
B H Johnson
S Tanasanvimon
M Javle
C Pairojkul
Y Chamgramol
W Wongfieng
B Gong
C Leelayuwat
Y S Lee
The University of Texas Medical Branch at Galveston · USKhon Kaen University · THKing Chulalongkorn Memorial Hospital · THThe University of Texas MD Anderson Cancer Center · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Kathrin Milbury · 1985 to 2026
$290.8M
HSRD VA CDP 12-187NCI NIH HHS CA16672NCI NIH HHS P30 CA016672
6 · The paper itself

Abstract

We have recently identified nc886 (pre-miR-886 or vtRNA2-1) as a novel type of non-coding RNA that inhibits activation of protein kinase R (PKR). PKR's pro-apoptotic role through eukaryotic initiation factor 2 α (eIF2α) phosphorylation is well established in the host defense against viral infection. Paradoxically, some cancer patients have elevated PKR activity; however, its cause and consequence are not understood. Initially, we evaluated the expression of nc886, PKR and eIF2α in non-malignant cholangiocyte and cholangiocarcinoma (CCA) cells. nc886 is repressed in CCA cells and this repression is the cause of PKR's activation therein. nc886 alone is necessary and sufficient for suppression of PKR via direct physical interaction. Consistently, artificial suppression of nc886 in cholangiocyte cells activates the canonical PKR/eIF2α cell death pathway, suggesting a potential significance of the nc886 suppression and the consequent PKR activation in eliminating pre-malignant cells during tumorigenesis. In comparison, active PKR in CCA cells does not induce phospho-eIF2α nor apoptosis, but promotes the pro-survival nuclear factor-κB pathway. Thus, PKR has a dual life or death role during tumorigenesis. Similarly to the CCA cell lines, nc886 tends to be decreased but PKR tends to be activated in our clinical samples from CCA patients. Collectively from our data, we propose a tumor surveillance model for nc886's role in the PKR pathway during tumorigenesis.

Indexed as

ApoptosisBile Ducts, IntrahepaticBile Duct NeoplasmsCell Line, TumorCell ProliferationCholangiocarcinomaeIF-2 KinaseHumansMicroRNAsNF-kappa BRNA, UntranslatedSignal TransductioneIF-2 KinaseMicroRNAsMIRN886 microRNA, humanNF-kappa BRNA, Untranslated

Identifiers

PMID22926522
PMCPMC3869796
OpenAlexW2164349269

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.