Evidence map›Paper›PMID 25870407›Full record

ArticleNucleic acids research2015

Live cell imaging of duplex siRNA intracellular trafficking.

Markus Hirsch, Mark Helm

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 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

19 citing papers in PubMed, 43 citations in OpenAlex.

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  11. Co-assembled CaMolecular therapy. Nucleic acids · 2019
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  12. Review
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  15. Article
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  17. Intracellular trafficking and exocytosis of a multi-component siRNA nanocomplex.Nanomedicine : nanotechnology, biology, and medicine · 2016
    Article
  18. Article
  19. 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

2 authors at 1 institution in 1 country.

Markus HirschInstitute of Pharmacy and Biochemistry, University of Mainz, D-55128 Mainz, Germany Institute of Pharmacy und Molecular Biotechnology, University of Heidelberg, D-69120 Heidelberg, Germany.
Mark HelmInstitute of Pharmacy and Biochemistry, University of Mainz, D-55128 Mainz, Germany Institute of Pharmacy und Molecular Biotechnology, University of Heidelberg, D-69120 Heidelberg, Germany mhelm@uni-mainz.de.
Heidelberg University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intracellular distribution of siRNA after in vitro transfection typically depends on lipopolyplexes, which must release the siRNA into the cytosol. Here, the fate of siRNAs was monitored by FRET-based live cell imaging. Subsequent to in situ observation of uptake and release processes, this approach allowed the observation of a number of hitherto uncharacterized intracellular distribution and degradation processes, commencing with a burst of endosomal releases, followed, in some cases, by fast siRNA influx into the nucleus. The continued observation of intact siRNA against a background of free fluorophores resulting from advanced degradation was possible by a specifically developed imaging algorithm, which identified populations of intact siRNA in pixels based on FRET. This proved to be essential in the end point definition of siRNA distribution, which typically featured partially degraded siRNA pools in perinuclear structures. Our results depict the initial 4 h as a critical time window, characterized by fast initial burst release into the cytosol, which lay the foundations for subsequent intracellular distribution of siRNA. Combination with a subsequent slower, but sustained release from endosomal reservoirs may contribute to the efficiency and duration of RNAi, and explain the success of lipopolyplexes in RNAi experiments in cell culture.

Indexed as

AnimalsCell LineCell NucleusEndosomesFluorescence Resonance Energy TransferMicroscopy, ConfocalRatsRNA, Small InterferingRNA TransportTransfectionRNA, Small Interfering

Identifiers

PMID25870407
PMCPMC4482072
OpenAlexW2026198085

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.