Evidence map›Paper›PMID 22105485›Full record

ArticleCell research2012

Poly(C)-binding protein 1 (PCBP1) mediates housekeeping degradation of mitochondrial antiviral signaling (MAVS).

Xiang Zhou, Fuping You, Huihui Chen, Zhengfan Jiang

Open access · bronzeAbstract read
In one paragraph

Article in Cell research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

52 citing papers in PubMed, 86 citations in OpenAlex.

  1. Review
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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

4 authors at 2 institutions in 1 country.

Xiang ZhouState Key Laboratory of Protein and Plant Gene Research, Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, Beijing, China.
Fuping You
Huihui Chen
Zhengfan Jiang
Peking University · CNTsinghua University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitochondrial antiviral signaling (MAVS) is a key adaptor in cellular antiviral innate immunity. We previously identified poly(C)-binding protein 2 (PCBP2) as a feedback inhibitor of MAVS that facilitates its degradation after viral infection, but little is known about the regulatory potential of poly(C)-binding protein 1 (PCBP1), which highly resembles PCBP2. Here we report that PCBP1 mediates housekeeping degradation of MAVS using the same mechanism as PCBP2 employs. Overexpression of PCBP1 impairs MAVS-mediated antiviral responses, while knockdown of PCBP1 exerts the opposite effect. The suppression is due to PCBP1-induced MAVS degradation. We observe that PCBP1 and PCBP2 show synergy in MAVS inhibition, but their expression patterns are distinct: PCBP1 is stably and abundantly expressed, while PCBP2 shows low basal expression with rapid induction after infection. Individual knockdown and subcellular fractionation analyses reveal that unlike the postinfection inhibitor PCBP2, PCBP1 continuously eliminates cellular MAVS. Our findings unravel a critical role of PCBP1 in regulating MAVS for both fine-tuning the antiviral immunity and preventing inflammation.

Indexed as

Gene Expression RegulationInfectionsAdaptor Proteins, Signal TransducingDNA-Binding ProteinsGene Knockdown TechniquesHeLa CellsHeterogeneous-Nuclear RibonucleoproteinsHumansInterferon Type IProteolysisRNA-Binding ProteinsRNA InterferenceU937 CellsAdaptor Proteins, Signal TransducingDNA-Binding ProteinsHeterogeneous-Nuclear RibonucleoproteinsInterferon Type IMAVS protein, humanPCBP1 protein, humanPCBP2 protein, humanRNA-Binding Proteins

Identifiers

PMID22105485
PMCPMC3317556
OpenAlexW1985272251

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.