Evidence map›Paper›PMID 32807841›Full record

ArticleCell research2021

Active RNA interference in mitochondria.

Kuanxing Gao, Man Cheng, Xinxin Zuo, Jinzhong Lin, Kurt Hoogewijs, Michael P Murphy, Xiang-Dong Fu, Xiaorong Zhang

Open access · bronzeAbstract read
In one paragraph

Article in Cell research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

32 citing papers in PubMed, 59 citations in OpenAlex.

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  8. The roles of subcellular Argonaute 2 in cardiovascular diseases.Journal of translational internal medicine · 2025
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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 6 institutions in 4 countries.

Kuanxing Gao *State Key Laboratory of Virology, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, Hubei, 430072, China.
Man Cheng *Key Laboratory for RNA Biology, Institute of Biophysics, Chinese Academy of Science, Beijing, 100101, China.
Xinxin ZuoState Key Laboratory of Virology, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan, Hubei, 430072, China.
Jinzhong LinState Key Laboratory of Genetic Engineering, Fudan University, Shanghai, 200433, China.ORCID http://orcid.org/0000-0001-5666-8526
Kurt HoogewijsDepartment of Organic and Macromolecular Chemistry, University of Ghent, Ghent, 9000, Belgium.
Michael P MurphyMedical Research Council-Mitochondrial Biology Unit, University of Cambridge, Cambridge, CB2 1TN, UK.ORCID http://orcid.org/0000-0003-1115-9618
Xiang-Dong FuDepartment of Cellular and Molecular Medicine, Institute of Genomic Medicine, University of California, San Diego, La Jolla, CA, 92093-0651, USA. xdfu@ucsd.edu.ORCID http://orcid.org/0000-0001-5499-8732
Xiaorong ZhangKey Laboratory for RNA Biology, Institute of Biophysics, Chinese Academy of Science, Beijing, 100101, China. xrzhang@ibp.ac.cn.ORCID http://orcid.org/0000-0002-6194-7746
Institute of Biophysics · CNWuhan University · CNFudan University · CNGhent University · BEUniversity of California San Diego · USUniversity of Cambridge · GB

Funding

Medical Research Council MC_U105663142Wellcome Trust 110158/Z/15/Z
6 · The paper itself

Abstract

RNA interference (RNAi) has been thought to be a gene-silencing pathway present in most eukaryotic cells to safeguard the genome against retrotransposition. Small interfering RNAs (siRNAs) have also become a powerful tool for studying gene functions. Given the endosymbiotic hypothesis that mitochondria originated from prokaryotes, mitochondria have been generally assumed to lack active RNAi; however, certain bacteria have Argonaute homologs and various reports suggest the presence of specific microRNAs and nuclear genome (nDNA)-encoded Ago2 in the mitochondria. Here we report that transfected siRNAs are not only able to enter the matrix of mitochondria, but also function there to specifically silence targeted mitochondrial transcripts. The mitoRNAi effect is readily detectable at the mRNA level, but only recordable on relatively unstable proteins, such as the mtDNA-encoded complex IV subunits. We also apply mitoRNAi to directly determine the postulated crosstalk between individual respiratory chain complexes, and our result suggests that the controversial observations previously made in patient-derived cells might result from differential adaptation in different cell lines. Our findings bring a new tool to study mitochondrial biology.

Indexed as

RNA InterferenceAnimalsArgonaute ProteinsDNA, MitochondrialFibroblastsHEK293 CellsHeLa CellsHumansMembrane Potential, MitochondrialMiceMitochondriaMyocytes, CardiacOxygenRNA, MessengerRNA, Small InterferingTransfectionAgo2 protein, mouseArgonaute ProteinsDNA, MitochondrialOxygenRNA, MessengerRNA, Small Interfering

Identifiers

PMID32807841
PMCPMC8027830
OpenAlexW3049054346

What OpenQuestion holds

Textmetadata
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.