Evidence map›Paper›PMID 27046251›Full record

ArticleAutophagy2016

Lysosomal putative RNA transporter SIDT2 mediates direct uptake of RNA by lysosomes.

Shu Aizawa, Yuuki Fujiwara, Viorica Raluca Contu, Katsunori Hase, Masayuki Takahashi, Hisae Kikuchi, Chihana Kabuta, Keiji Wada, Tomohiro Kabuta

Open access · hybridAbstract read
In one paragraph

Article in Autophagy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 4% 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

55 citing papers in PubMed, 1 synthesis or guideline pooled it, 100 citations in OpenAlex.

  1. Guideline
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  9. Ribosome-associated quality control and related mechanisms.Nature structural & molecular biology · 2026
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Sterile activation of RNA-sensing pathways in autoimmunity.Journal of molecular cell biology · 2024
    Review
  16. Article
  17. Article
  18. Article
  19. Article
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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

9 authors at 2 institutions in 1 country.

Shu Aizawaa Department of Degenerative Neurological Diseases , National Institute of Neuroscience, National Center of Neurology and Psychiatry , Kodaira , Tokyo , Japan.
Yuuki Fujiwaraa Department of Degenerative Neurological Diseases , National Institute of Neuroscience, National Center of Neurology and Psychiatry , Kodaira , Tokyo , Japan.
Viorica Raluca Contua Department of Degenerative Neurological Diseases , National Institute of Neuroscience, National Center of Neurology and Psychiatry , Kodaira , Tokyo , Japan.
Katsunori Hasea Department of Degenerative Neurological Diseases , National Institute of Neuroscience, National Center of Neurology and Psychiatry , Kodaira , Tokyo , Japan.
Masayuki Takahashia Department of Degenerative Neurological Diseases , National Institute of Neuroscience, National Center of Neurology and Psychiatry , Kodaira , Tokyo , Japan.
Hisae Kikuchia Department of Degenerative Neurological Diseases , National Institute of Neuroscience, National Center of Neurology and Psychiatry , Kodaira , Tokyo , Japan.
Chihana Kabutaa Department of Degenerative Neurological Diseases , National Institute of Neuroscience, National Center of Neurology and Psychiatry , Kodaira , Tokyo , Japan.
Keiji Wadaa Department of Degenerative Neurological Diseases , National Institute of Neuroscience, National Center of Neurology and Psychiatry , Kodaira , Tokyo , Japan.
Tomohiro Kabutaa Department of Degenerative Neurological Diseases , National Institute of Neuroscience, National Center of Neurology and Psychiatry , Kodaira , Tokyo , Japan.
National Center of Neurology and Psychiatry · JPWaseda University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lysosomes are thought to be the major intracellular compartment for the degradation of macromolecules. We recently identified a novel type of autophagy, RNautophagy, where RNA is directly taken up by lysosomes in an ATP-dependent manner and degraded. However, the mechanism of RNA translocation across the lysosomal membrane and the physiological role of RNautophagy remain unclear. In the present study, we performed gain- and loss-of-function studies with isolated lysosomes, and found that SIDT2 (SID1 transmembrane family, member 2), an ortholog of the Caenorhabditis elegans putative RNA transporter SID-1 (systemic RNA interference deficient-1), mediates RNA translocation during RNautophagy. We also observed that SIDT2 is a transmembrane protein, which predominantly localizes to lysosomes. Strikingly, knockdown of Sidt2 inhibited up to ˜50% of total RNA degradation at the cellular level, independently of macroautophagy. Moreover, we showed that this impairment is mainly due to inhibition of lysosomal RNA degradation, strongly suggesting that RNautophagy plays a significant role in constitutive cellular RNA degradation. Our results provide a novel insight into the mechanisms of RNA metabolism, intracellular RNA transport, and atypical types of autophagy.

Indexed as

RNA TransportAnimalsAutophagyGene Knockdown TechniquesHeLa CellsHumansLysosomal-Associated Membrane Protein 2LysosomesMembrane ProteinsMiceNucleotide Transport ProteinsProtein BindingRNARNA StabilityLysosomal-Associated Membrane Protein 2Membrane ProteinsNucleotide Transport ProteinsRNASIDT2 protein, humanSidt2 protein, mouseautophagylysosomemembrane proteinRNARNautophagy

Identifiers

PMID27046251
PMCPMC4836006
OpenAlexW2277909760

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.