Evidence map›Paper›PMID 30967557›Full record

ArticleNature communications2019

KIBRA controls exosome secretion via inhibiting the proteasomal degradation of Rab27a.

Lin Song, Shi Tang, Xiaolei Han, Ziying Jiang, Lingling Dong, Cuicui Liu, Xiaoyan Liang, Jixin Dong, Chengxuan Qiu, Yongxiang Wang and 1 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 148 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
148citing papers in PubMed, 1 pooled it
13.9field-weighted citation impact, top 1% 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

148 citing papers in PubMed, 1 synthesis or guideline pooled it, 256 citations in OpenAlex.

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88 more citing papers are in PubMed but not listed here.

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

11 authors at 4 institutions in 3 countries.

Lin SongDepartment of Neurology, Shandong Provincial Hospital affiliated to Shandong University, 250021, Jinan, Shandong, China.
Shi TangDepartment of Neurology, Shandong Provincial Hospital affiliated to Shandong University, 250021, Jinan, Shandong, China.
Xiaolei HanDepartment of Neurology, Shandong Provincial Hospital affiliated to Shandong University, 250021, Jinan, Shandong, China.
Ziying JiangDepartment of Neurology, Shandong Provincial Hospital affiliated to Shandong University, 250021, Jinan, Shandong, China.
Lingling DongDepartment of Neurology, Dongying People's Hospital, 257091, Dongying, Shandong, China.
Cuicui LiuDepartment of Neurology, Shandong Provincial Hospital affiliated to Shandong University, 250021, Jinan, Shandong, China.
Xiaoyan LiangDepartment of Neurology, Shandong Provincial Hospital affiliated to Shandong University, 250021, Jinan, Shandong, China.
Jixin DongEppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
Chengxuan QiuDepartment of Neurology, Shandong Provincial Hospital affiliated to Shandong University, 250021, Jinan, Shandong, China.
Yongxiang WangDepartment of Neurology, Shandong Provincial Hospital affiliated to Shandong University, 250021, Jinan, Shandong, China. wang-yongxiang@hotmail.com.
Yifeng DuDepartment of Neurology, Shandong Provincial Hospital affiliated to Shandong University, 250021, Jinan, Shandong, China. du-yifeng@hotmail.com.
Shandong Provincial Hospital · CNShandong University · CNUniversity of Nebraska Medical Center · USWenzhou Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exosomes are nanosized membrane vesicles released from cells after fusion of multivesicular bodies (MVBs) with the plasma membrane (PM) and play important roles in intercellular communication and numerous biological processes. However, the molecular mechanisms regulating exosome secretion remain poorly understood. Here we identify KIBRA as an adaptor-like protein that stabilizes Rab27a, which in turn controls exosome secretion both in vitro and in vivo. Knockdown or overexpression of KIBRA in neuronal and podocyte cell lines leads to a decrease or increase of exosome secretion, respectively, and KIBRA depletion increases MVB size and number. Comparing protein profiles between KIBRA knockout and wild-type mouse brain showed significantly decreased Rab27a, a small GTPase that regulates MVB-PM docking. Rab27a is stabilized by interacting with KIBRA, which prevents ubiquitination and degradation via the ubiquitin-proteasome pathway. In conclusion, we show that KIBRA controls exosome secretion via inhibiting the proteasomal degradation of Rab27a.

Indexed as

AnimalsBrainCell MembraneExosomesGene Knockdown TechniquesHEK293 CellsHumansIntracellular Signaling Peptides and ProteinsMiceMice, KnockoutMultivesicular BodiesNeuronsPhosphoproteinsPodocytesProteolysisrab27 GTP-Binding ProteinsIntracellular Signaling Peptides and ProteinsPhosphoproteinsRab27a protein, mouserab27 GTP-Binding ProteinsWwc1 protein, mouse

Identifiers

PMID30967557
PMCPMC6456494
OpenAlexW2928466860

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.