Evidence map›Paper›PMID 36139348›Full record

ArticleCells2022

Exporting Proteins Associated with Senescence Repair via Extracellular Vesicles May Be Associated with Early Pregnancy Loss.

Yi Zhang, Yunhui Tang, Xinyi Sun, Matt Kang, Min Zhao, Jiayi Wan, Qi Chen

Open access · goldAbstract read
In one paragraph

Article in Cells, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

8 citing papers in PubMed, 16 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

7 authors at 4 institutions in 2 countries.

Yi ZhangDepartment of Obstetrics & Gynaecology, The University of Auckland, Auckland 1141, New Zealand.ORCID 0000-0002-0896-0001
Yunhui TangDepartment of Family Planning, The Hospital of Obstetrics & Gynaecology, Fudan University, Shanghai 200082, China.
Xinyi SunDepartment of Obstetrics & Gynaecology, The University of Auckland, Auckland 1141, New Zealand.
Matt KangDepartment of Obstetrics & Gynaecology, The University of Auckland, Auckland 1141, New Zealand.
Min ZhaoDepartment of Gynaecological Cancer, Wuxi Maternity and Child Health Hospital Affiliated Nanjing Medical University, Wuxi 214002, China.
Jiayi WanDepartment of Pathology, Wuxi No 2 People's Hospital, Nanjing Medical University, Wuxi 214002, China.
Qi ChenDepartment of Obstetrics & Gynaecology, The University of Auckland, Auckland 1141, New Zealand.ORCID 0000-0001-5894-6331
University of Auckland · NZNanjing Maternity and Child Health Care Hospital · CNObstetrics and Gynecology Hospital of Fudan University · CNWuxi No.2 People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDysfunction of placental development is involved in early pregnancy loss. Senescent changes have been seen in missed miscarriage, one type of pregnancy loss. Extracellular vesicles (EVs) have been widely implicated in the pathogenesis of diseases. In this study, we investigated the protein profiles in placental EVs derived from missed miscarriage in comparison with healthy pregnancy. We also investigated whether cargos packed into EVs are involved in the dysfunctional development of the placenta seen in missed miscarriage.

methodsProteomic analysis of placental EVs derived from healthy and missed-miscarriage placentae was performed. Three senescence-repair-associated proteins, replication protein A-70 (RPA-70), proteasome activator subunit-4 (PMSE-4), and protein activated kinase-2, (PAK-2) were examined in placental EVs and placentae, and in placental explants that had been treated with or without GW4869, by western blotting and immunohistochemistry.

resultsThe total number of proteins associated with placental EVs was not different between the two groups. However, there were 106 and 151 abundantly expressed proteins associated with placental micro- or nano-EVs from missed miscarriage in comparison with EVs from controls. Of these abundant proteins, 59 and 81 proteins in placental micro- or nano-EVs, respectively, are associated with DNA damage/repair and cell death/survival. We further found higher levels of three senescence-repair-associated proteins (RPA-70, PMSE-4, and PAK-2) associated with placental EVs, but lower levels of these proteins in missed-miscarriage placentae. Regarding inhibition of EV formation or release by GW4869, we found that the expression of these three proteins was higher in GW4869-treated placental explants from missed miscarriage. DISCUSSION: Our data may suggest that "inadvertently" sorting of cargos and exporting proteins associated with senescence-repair by placental EVs may be associated with the dysfunction of placental development seen in missed miscarriage.

Indexed as

Abortion, SpontaneousExtracellular VesiclesAniline CompoundsBenzylidene CompoundsFemaleHumansPlacentaPregnancyProteasome Endopeptidase ComplexProteinsProteomicsReplication Protein AAniline CompoundsBenzylidene CompoundsGW 4869Proteasome Endopeptidase ComplexProteinsReplication Protein Ainhibitor of EV formationmissed miscarriageplacental developmentplacental EVsproteomicssenescence-repairsorting of cargo

Identifiers

PMID36139348
PMCPMC9496689
OpenAlexW4295063417

What OpenQuestion holds

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Registered trials

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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.