Evidence map›Paper›PMID 28815002›Full record

ArticleJournal of extracellular vesicles2017

A comprehensive method for identification of suitable reference genes in extracellular vesicles.

Kenneth Gouin, Kiel Peck, Travis Antes, Jennifer Leigh Johnson, Chang Li, Sharon Denise Vaturi, Ryan Middleton, Geoff de Couto, Ann-Sophie Walravens, Luis Rodriguez-Borlado and 4 more

Abstract read
In one paragraph

Article in Journal of extracellular vesicles, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 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

45 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Selection of reference genes for quantitative PCR: identifying reference genes for airway epithelial cells exposed toAmerican journal of physiology. Lung cellular and molecular physiology · 2020
    Pooled it
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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

14 authors.

Kenneth GouinHeart Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA.
Kiel PeckCapricor Therapeutics Institute, Beverly Hills, CA, USA.
Travis AntesCapricor Therapeutics Institute, Beverly Hills, CA, USA.
Jennifer Leigh JohnsonCapricor Therapeutics Institute, Beverly Hills, CA, USA.
Chang LiCapricor Therapeutics Institute, Beverly Hills, CA, USA.
Sharon Denise VaturiCapricor Therapeutics Institute, Beverly Hills, CA, USA.ORCID 0000-0003-2519-6049
Ryan MiddletonHeart Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA.
Geoff de CoutoCapricor Therapeutics Institute, Beverly Hills, CA, USA.
Ann-Sophie WalravensCapricor Therapeutics Institute, Beverly Hills, CA, USA.
Luis Rodriguez-BorladoCapricor Therapeutics Institute, Beverly Hills, CA, USA.
Rachel Ruckdeschel SmithCapricor Therapeutics Institute, Beverly Hills, CA, USA.
Linda MarbánCapricor Therapeutics Institute, Beverly Hills, CA, USA.
Eduardo MarbánHeart Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA.
Ahmed Gamal-Eldin IbrahimCapricor Therapeutics Institute, Beverly Hills, CA, USA.ORCID 0000-0002-1657-7432

Funding

Exosome-mediated cardioprotection and regenerationR01HL124074 · NHLBI · CEDARS-SINAI MEDICAL CENTER · PI MARBAN, EDUARDO · 2014 to 2021
$4.0M
NHLBI NIH HHS R01 HL124074
6 · The paper itself

Abstract

Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) is one of the most sensitive, economical and widely used methods for evaluating gene expression. However, the utility of this method continues to be undermined by a number of challenges including normalization using appropriate reference genes. The need to develop tailored and effective strategies is further underscored by the burgeoning field of extracellular vesicle (EV) biology. EVs contain unique signatures of small RNAs including microRNAs (miRs). In this study we develop and validate a comprehensive strategy for identifying highly stable reference genes in a therapeutically relevant cell type, cardiosphere-derived cells. Data were analysed using the four major approaches for reference gene evaluation: NormFinder, GeNorm, BestKeeper and the Delta Ct method. The weighted geometric mean of all of these methods was obtained for the final ranking. Analysis of RNA sequencing identified miR-101-3p, miR-23a-3p and a previously identified EV reference gene, miR-26a-5p. Analysis of a chip-based method (NanoString) identified miR-23a, miR-217 and miR-379 as stable candidates. RT-qPCR validation revealed that the mean of miR-23a-3p, miR-101-3p and miR-26a-5p was the most stable normalization strategy. Here, we demonstrate that a comprehensive approach of a diverse data set of conditions using multiple algorithms reliably identifies stable reference genes which will increase the utility of gene expression evaluation of therapeutically relevant EVs.

Indexed as

cardiosphere-derived cellsCDCsExtracellular vesiclesmicroRNAsmiRsqPCRreference genesRT-qPCRstem cells

Identifiers

PMID28815002
PMCPMC5549828

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.