Evidence map›Paper›PMID 28005467›Full record

ArticleRNA biology2017

Defining the purity of exosomes required for diagnostic profiling of small RNA suitable for biomarker discovery.

Camelia Quek, Shayne A Bellingham, Chol-Hee Jung, Benjamin J Scicluna, Mitch C Shambrook, Robyn A Sharples, Lesley Cheng, Andrew F Hill

Open access · hybridAbstract read
In one paragraph

Article in RNA biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

33 citing papers in PubMed, 44 citations in OpenAlex.

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  12. Let-7b-5p in vesicles secreted by human airway cells reduces biofilm formation and increases antibiotic sensitivity ofProceedings of the National Academy of Sciences of the United States of America · 2021
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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

8 authors at 2 institutions in 1 country.

Camelia Queka Department of Biochemistry and Molecular Biology , Bio21 Molecular Science and Biotechnology Institute, University of Melbourne , Melbourne , VIC , Australia.
Shayne A Bellinghama Department of Biochemistry and Molecular Biology , Bio21 Molecular Science and Biotechnology Institute, University of Melbourne , Melbourne , VIC , Australia.
Chol-Hee Jungc VLSCI Life Sciences Computation Centre, University of Melbourne , VIC , Australia.
Benjamin J Sciclunaa Department of Biochemistry and Molecular Biology , Bio21 Molecular Science and Biotechnology Institute, University of Melbourne , Melbourne , VIC , Australia.
Mitch C Shambrookb Department of Biochemistry and Genetics , La Trobe Institute for Molecular Science, La Trobe University , VIC , Australia.
Robyn A Sharplesa Department of Biochemistry and Molecular Biology , Bio21 Molecular Science and Biotechnology Institute, University of Melbourne , Melbourne , VIC , Australia.
Lesley Chengb Department of Biochemistry and Genetics , La Trobe Institute for Molecular Science, La Trobe University , VIC , Australia.
Andrew F Hillb Department of Biochemistry and Genetics , La Trobe Institute for Molecular Science, La Trobe University , VIC , Australia.
University of Melbourne · AULa Trobe University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Small non-coding RNAs (ncRNA), including microRNAs (miRNA), enclosed in exosomes are being utilised for biomarker discovery in disease. Two common exosome isolation methods involve differential ultracentrifugation or differential ultracentrifugation coupled with Optiprep gradient fractionation. Generally, the incorporation of an Optiprep gradient provides better separation and increased purity of exosomes. The question of whether increased purity of exosomes is required for small ncRNA profiling, particularly in diagnostic and biomarker purposes, has not been addressed and highly debated. Utilizing an established neuronal cell system, we used next-generation sequencing to comprehensively profile ncRNA in cells and exosomes isolated by these 2 isolation methods. By comparing ncRNA content in exosomes from these two methods, we found that exosomes from both isolation methods were enriched with miRNAs and contained a diverse range of rRNA, small nuclear RNA, small nucleolar RNA and piwi-interacting RNA as compared with their cellular counterparts. Additionally, tRNA fragments (30-55 nucleotides in length) were identified in exosomes and may act as potential modulators for repressing protein translation. Overall, the outcome of this study confirms that ultracentrifugation-based method as a feasible approach to identify ncRNA biomarkers in exosomes.

Indexed as

BiomarkersGene Expression ProfilingAnimalsCell LineExosomesHigh-Throughput Nucleotide SequencingHypothalamusMiceMicroRNAsNeuronsRNA, Small UntranslatedRNA, TransferWorkflowBiomarkersMicroRNAsRNA, Small UntranslatedRNA, TransferBiomarkersexosomesmiRNAsmall RNA

Identifiers

PMID28005467
PMCPMC5324750
OpenAlexW2565703327

What OpenQuestion holds

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LicenceCC BY-NC
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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.