Evidence map›Paper›PMID 25940616›Full record

ArticleNucleic acids research2015

Assessment of small RNA sorting into different extracellular fractions revealed by high-throughput sequencing of breast cell lines.

Juan Pablo Tosar, Fabiana Gámbaro, Julia Sanguinetti, Braulio Bonilla, Kenneth W Witwer, Alfonso Cayota

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 143 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
143citing papers in PubMed, 1 pooled it
10.5field-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

143 citing papers in PubMed, 1 synthesis or guideline pooled it, 242 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Unlocking the role of tRNA-derived fragments in shaping breast cancer signaling.Naunyn-Schmiedeberg's archives of pharmacology · 2025
    Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Beyond the Bubble: A Debate on microRNA Sorting Into Extracellular Vesicles.Laboratory investigation; a journal of technical methods and pathology · 2025
    Review
  17. Review
  18. Article
  19. Article
  20. Review

83 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

6 authors at 3 institutions in 2 countries.

Juan Pablo TosarFunctional Genomics Unit, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay Nuclear Research Center, Faculty of Science, Universidad de la República, Montevideo 11400, Uruguay.
Fabiana GámbaroFunctional Genomics Unit, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay.
Julia SanguinettiFunctional Genomics Unit, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay.
Braulio BonillaFunctional Genomics Unit, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay.
Kenneth W WitwerDepartment of Molecular and Comparative Pathobiology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
Alfonso CayotaFunctional Genomics Unit, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay Department of Medicine, Faculty of Medicine, Universidad de la República, Montevideo 11600, Uruguay cayota@pasteur.edu.uy.
Institut Pasteur de Montevideo · UYUniversidad de la República · UYJohns Hopkins University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intercellular communication can be mediated by extracellular small regulatory RNAs (sRNAs). Circulating sRNAs are being intensively studied for their promising use as minimally invasive disease biomarkers. To date, most attention is centered on exosomes and microRNAs as the vectors and the secreted species, respectively. However, this field would benefit from an increased understanding of the plethora of sRNAs secreted by different cell types in different extracellular fractions. It is still not clear if specific sRNAs are selected for secretion, or if sRNA secretion is mostly passive. We sequenced the intracellular sRNA content (19-60 nt) of breast epithelial cell lines (MCF-7 and MCF-10A) and compared it with extracellular fractions enriched in microvesicles, exosomes and ribonucleoprotein complexes. Our results are consistent with a non-selective secretion model for most microRNAs, although a few showed secretion patterns consistent with preferential secretion. On the contrary, 5' tRNA halves and 5' RNA Y4-derived fragments of 31-33 were greatly and significantly enriched in the extracellular space (even in non-mammary cell lines), where tRNA halves were detected as part of ∼45 kDa ribonucleoprotein complexes. Overall, we show that different sRNA families have characteristic secretion patterns and open the question of the role of these sRNAs in the extracellular space.

Indexed as

Breast NeoplasmsCell Line, TumorExtracellular SpaceFemaleHigh-Throughput Nucleotide SequencingHumansMCF-7 CellsMicroRNAsRibonucleoproteinsRNA, Small UntranslatedRNA, Transfer, GluRNA, Transfer, GlySequence Analysis, RNATransport VesiclesMicroRNAsRibonucleoproteinsRNA, Small UntranslatedRNA, Transfer, GluRNA, Transfer, Gly

Identifiers

PMID25940616
PMCPMC4477662
OpenAlexW2154479094

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.