Evidence map›Paper›PMID 23159858›Full record

ArticleCell cycle (Georgetown, Tex.)2012

Nek9 regulates spindle organization and cell cycle progression during mouse oocyte meiosis and its location in early embryo mitosis.

Shang-Wu Yang, Chen Gao, Lei Chen, Ya-Li Song, Jin-Liang Zhu, Shu-Tao Qi, Zong-Zhe Jiang, Zhong-Wei Wang, Fei Lin, Hao Huang and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Cell cycle (Georgetown, Tex.), 2012. 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 30% 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, 33 citations in OpenAlex.

  1. An Increase in Male Recombination Rate With Age in Dairy Cattle Is Heritable and Polygenic.Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie · 2026
    Article
  2. Review
  3. Review
  4. In Mitosis You Are Not: The NIMA Family of Kinases inInternational journal of molecular sciences · 2022
    Review
  5. Article
  6. PKCβ1 regulates meiotic cell cycle in mouse oocyte.Cell cycle (Georgetown, Tex.) · 2019
    Article
  7. A Genomic Region ContainingG3 (Bethesda, Md.) · 2018
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
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

12 authors at 6 institutions in 2 countries.

Shang-Wu YangState Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Chen Gao
Lei Chen
Ya-Li Song
Jin-Liang Zhu
Shu-Tao Qi
Zong-Zhe Jiang
Zhong-Wei Wang
Fei Lin
Hao Huang
Fu-Qi Xing
Qing-Yuan Sun
Institute of Zoology · CNChinese Academy of Sciences · CNSouthern Medical University · CNChinese Center For Disease Control and Prevention · CNPeking University · CNZhuhai People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nek9 (also known as Nercc1), a member of the NIMA (never in mitosis A) family of protein kinases, regulates spindle formation, chromosome alignment and segregation in mitosis. Here, we showed that Nek9 protein was expressed from germinal vesicle (GV) to metaphase II (MII) stages in mouse oocytes with no detectable changes. Confocal microscopy identified that Nek9 was localized to the spindle poles at the metaphase stages and associated with the midbody at anaphase or telophase stage in both meiotic oocytes and the first mitotic embyros. Depletion of Nek9 by specific morpholino injection resulted in severely defective spindles and misaligned chromosomes with significant pro-MI/MI arrest and failure of first polar body (PB1) extrusion. Knockdown of Nek9 also impaired the spindle-pole localization of γ-tubulin and resulted in retention of the spindle assembly checkpoint protein Bub3 at the kinetochores even after 10 h of culture. Live-cell imaging analysis also confirmed that knockdown of Nek9 resulted in oocyte arrest at the pro-MI/MI stage with abnormal spindles, misaligned chromosomes and failed polar body emission. Taken together, our results suggest that Nek9 may act as a MTOC-associated protein regulating microtubule nucleation, spindle organization and, thus, cell cycle progression during mouse oocyte meiotic maturation, fertilization and early embryo cleavage.

Indexed as

AnimalsAntineoplastic Agents, PhytogenicCell Cycle ProteinsChromosomal Proteins, Non-HistoneChromosomesChromosome SegregationFemaleKinetochoresMeiosisMiceMice, Inbred ICRMitosisMorpholinosM Phase Cell Cycle CheckpointsNIMA-Related KinasesNocodazoleAntineoplastic Agents, PhytogenicBub3 protein, mouseCell Cycle ProteinsChromosomal Proteins, Non-HistoneMorpholinosNek9 protein, mouseNIMA-Related KinasesNocodazolePaclitaxelPoly-ADP-Ribose Binding ProteinsProtein Serine-Threonine KinasesTubulin

Identifiers

PMID23159858
PMCPMC3552919
OpenAlexW1979946750

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.