Evidence map›Paper›PMID 17287531›Full record

ArticleGenetics2007

Valproic acid affects membrane trafficking and cell-wall integrity in fission yeast.

Makoto Miyatake, Takayoshi Kuno, Ayako Kita, Kosaku Katsura, Kaoru Takegawa, Satoshi Uno, Toshiya Nabata, Reiko Sugiura

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

17 citing papers in PubMed, 36 citations in OpenAlex.

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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 3 institutions in 1 country.

Makoto MiyatakeDivision of Molecular Pharmacology and Pharmacogenomics, Department of Genome Sciences, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan.
Takayoshi Kuno
Ayako Kita
Kosaku Katsura
Kaoru Takegawa
Satoshi Uno
Toshiya Nabata
Reiko Sugiura
Kobe University · JPKindai University · JPKagawa University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Valproic acid (VPA) is widely used to treat epilepsy and manic-depressive illness. Although VPA has been reported to exert a variety of biochemical effects, the exact mechanisms underlying its therapeutic effects remain elusive. To gain further insights into the molecular mechanisms of VPA action, a genetic screen for fission yeast mutants that show hypersensitivity to VPA was performed. One of the genes that we identified was vps45+, which encodes a member of the Sec1/Munc18 family that is implicated in membrane trafficking. Notably, several mutations affecting membrane trafficking also resulted in hypersensitivity to VPA. These include ypt3+ and ryh1+, both encoding a Rab family protein, and apm1+, encoding the mu1 subunit of the adaptor protein complex AP-1. More importantly, VPA caused vacuolar fragmentation and inhibited the glycosylation and the secretion of acid phosphatase in wild-type cells, suggesting that VPA affects membrane trafficking. Interestingly, the cell-wall-damaging agents such as micafungin or the inhibition of calcineurin dramatically enhanced the sensitivity of wild-type cells to VPA. Consistently, VPA treatment of wild-type cells enhanced their sensitivity to the cell-wall-digesting enzymes. Altogether, our results suggest that VPA affects membrane trafficking, which leads to the enhanced sensitivity to cell-wall damage in fission yeast.

Indexed as

Amino Acid SequenceBase SequenceBiological Transport, ActiveCalcineurinCell MembraneCell WallDNA, FungalDrug Resistance, FungalGenes, FungalMicroscopy, ElectronMutationSchizosaccharomycesSchizosaccharomyces pombe ProteinsSequence Homology, Amino AcidSignal TransductionValproic AcidCalcineurinDNA, FungalSchizosaccharomyces pombe ProteinsValproic AcidVesicular Transport Proteins

Identifiers

PMID17287531
PMCPMC1855103
OpenAlexW2130204580

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.