Evidence map›Paper›PMID 34476630›Full record

ArticleJournal of assisted reproduction and genetics2021

Novel WEE2 compound heterozygous mutations identified in patients with fertilization failure or poor fertilization.

Jiamin Jin, Xiaomei Tong, Yin-Li Zhang, Weijie Yang, Yerong Ma, Peipei Ren, Feng Zhou, Songying Zhang

Open access · hybridAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Advances in the genetic etiology of female infertility.Journal of assisted reproduction and genetics · 2024
    Review
  9. Article
  10. Review
  11. Predicting the unexpected total fertilization failure in conventionalFrontiers in cell and developmental biology · 2023
    Article
  12. Review
  13. Molecular tools for the genomic assessment of oocyte's reproductive competence.Journal of assisted reproduction and genetics · 2022
    Review
  14. Review
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 1 institution in 1 country.

Jiamin Jin *Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, No. 3 Qingchun East Road, Jianggan District, Hangzhou, 310016, China.
Xiaomei Tong *Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, No. 3 Qingchun East Road, Jianggan District, Hangzhou, 310016, China.
Yin-Li ZhangAssisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, No. 3 Qingchun East Road, Jianggan District, Hangzhou, 310016, China.
Weijie YangAssisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, No. 3 Qingchun East Road, Jianggan District, Hangzhou, 310016, China.
Yerong MaAssisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, No. 3 Qingchun East Road, Jianggan District, Hangzhou, 310016, China.
Peipei RenAssisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, No. 3 Qingchun East Road, Jianggan District, Hangzhou, 310016, China.
Feng ZhouAssisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, No. 3 Qingchun East Road, Jianggan District, Hangzhou, 310016, China.
Songying ZhangAssisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, No. 3 Qingchun East Road, Jianggan District, Hangzhou, 310016, China. zhangsongying@zju.edu.cn.ORCID http://orcid.org/0000-0001-8044-6237
Sir Run Run Shaw Hospital · CN

Funding

the key projects jointly constructed by the ministry and the province of zhejiang medical and health science and technology project WKJ-ZJ-2005the National Key Research and Developmental Program of China 2018YFC1004800the Zhejiang Provincial Natural Science Foundation LY19H040013
6 · The paper itself

Abstract

purposeTo study associations between novel WEE2 mutations and patients with fertilization failure or poor fertilization.

methodsThirty-one Chinese patients who underwent treatment with assisted reproductive technology and suffered from repeated (at least two times) total fertilization failure (TFF) or a low fertilization rate were enrolled. Genomic DNA was extracted from patients for whole-exome sequencing. Suspicious mutations were validated by Sanger sequencing. WEE2 protein levels in oocytes from affected patients were examined by immunofluorescence. Disruptive effects of mutations on WEE2 protein stability, subcellular localization, and kinase function were analyzed through western blotting, immunofluorescence, and flow cytometry in HeLa cells.

resultsThree of thirty-one (9.6%) enrolled patients had six compound heterozygous mutations of the WEE2 gene, and three of them were reported here for the first time (c.115_116insT, c.756_758delTGA, and c.C1459T). Oocytes from affected patients showed decreased WEE2 immunofluorescence signals. In vitro experiments showed that the mutant WEE2 gene caused reduced WEE2 protein levels or cellular compartment translocation in HeLa cells, leading to decreased levels of the phosphorylated Cdc2 protein. Compared with the wild-type WEE2 protein, the mutant WEE2 proteins were also found to have different effects on the cell cycle.

conclusionThree novel compound heterozygous WEE2 variants were found in patients with pronucleus formation failure. This study provides new evidence that WEE2 mutations result in loss of function, which could result in fertilization failure.

Indexed as

Cell Cycle ProteinsFertilizationHeterozygoteInfertility, FemaleMutationOocytesProtein-Tyrosine KinasesAdultFemaleHumansPhosphorylationReproductive Techniques, AssistedCell Cycle ProteinsProtein-Tyrosine KinasesWee2 protein, humanFertilization failureNovel mutationPronucleus formationWEE2

Identifiers

PMID34476630
PMCPMC8608989
OpenAlexW3198311318

What OpenQuestion holds

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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.