Evidence map›Paper›PMID 22395642›Full record

SynthesisJournal of the National Cancer Institute2012

Clinical outcome prediction by microRNAs in human cancer: a systematic review.

Viswam S Nair, Lauren S Maeda, John P A Ioannidis

Abstract readSystematic Review
In one paragraph

Synthesis in Journal of the National Cancer Institute, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 126 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
126citing papers in PubMed, 6 pooled it
–field-weighted citation impact
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

126 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Low expression of let-7 predicts poor prognosis in patients with multiple cancers: a meta-analysis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  5. Quantitative assessment of the association between microRNA-499 rs3746444 A/G polymorphism and cancer risk.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  6. Pooled it
  7. Trial
  8. Trial
  9. Trial
  10. Article
  11. Review
  12. Article
  13. Article
  14. Prognostic value and gene regulatory network of CMSS1 in hepatocellular carcinoma.Cancer biomarkers : section A of Disease markers · 2024
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

66 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

3 authors.

Viswam S NairDivision of Pulmonary & Critical Care Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.
Lauren S Maeda
John P A Ioannidis

Funding

NHLBI NIH HHS 5T32HL00794
6 · The paper itself

Abstract

backgroundMicroRNA (miR) expression may have prognostic value for many types of cancers. However, the miR literature comprises many small studies. We systematically reviewed and synthesized the evidence.

methodsUsing MEDLINE (last update December 2010), we identified English language studies that examined associations between miRs and cancer prognosis using tumor specimens for more than 10 patients during classifier development. We included studies that assessed a major clinical outcome (nodal disease, disease progression, response to therapy, metastasis, recurrence, or overall survival) in an agnostic fashion using either polymerase chain reaction or hybridized oligonucleotide microarrays.

resultsForty-six articles presenting results on 43 studies pertaining to 20 different types of malignancy were eligible for inclusion in this review. The median study size was 65 patients (interquartile range [IQR] = 34-129), the median number of miRs assayed was 328 (IQR = 250-470), and overall survival or recurrence were the most commonly measured outcomes (30 and 19 studies, respectively). External validation was performed in 21 studies, 20 of which reported at least one nominally statistically significant result for a miR classifier. The median hazard ratio for poor outcome in externally validated studies was 2.52 (IQR = 2.26-5.40). For all classifier miRs in studies that evaluated overall survival across diverse malignancies, the miRs most frequently associated with poor outcome after accounting for differences in miR assessment due to platform type were let-7 (decreased expression in patients with cancer) and miR 21 (increased expression).

conclusionsMiR classifiers show promising prognostic associations with major cancer outcomes and specific miRs are consistently identified across diverse studies and platforms. These types of classifiers require careful external validation in large groups of cancer patients that have adequate protection from bias. -

Indexed as

MicroRNAsConfounding Factors, EpidemiologicData Interpretation, StatisticalDisease ProgressionGene Expression ProfilingGene Expression Regulation, NeoplasticHumansLymphatic MetastasisNeoplasmsOdds RatioOligonucleotide Array Sequence AnalysisPolymerase Chain ReactionPredictive Value of TestsPrognosisResearch DesignSample SizeMicroRNAs

Identifiers

PMID22395642
PMCPMC3317879

What OpenQuestion holds

Textmetadata
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.