Evidence map›Paper›PMID 8509454›Full record

ArticleThe Journal of cell biology1993

Cortical and cytoplasmic flow polarity in early embryonic cells of Caenorhabditis elegans.

S N Hird, J G White

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

96 citing papers in PubMed, 301 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Internal feedback circuits among MEX-5, MEX-6, and PLK-1 maintain faithful patterning in theProceedings of the National Academy of Sciences of the United States of America · 2024
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  5. Cytoplasmic stirring by active carpets.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Article
  7. Review
  8. Article
  9. Delineating the mechanisms and design principles ofComputational and structural biotechnology journal · 2022
    Review
  10. Article
  11. Article
  12. Chemokine-biased robust self-organizing polarization of migrating cells in vivo.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  13. Going with the flow: insights fromPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Review
  14. Review
  15. Mechanochemical Control of Symmetry Breaking in theFrontiers in cell and developmental biology · 2020
    Review
  16. Mitotic Cell Division inGenetics · 2019
    Review
  17. Article
  18. Article
  19. Article
  20. Optical control of cytoplasmic flows.Nature cell biology · 2018
    Article

36 more citing papers are in PubMed but not listed here.

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

2 authors at 2 institutions in 1 country.

S N HirdMedical Research Council Laboratory of Molecular Biology, Cambridge, England.
J G White
Medical Research Council · GBMRC Laboratory of Molecular Biology · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have examined the cortex of Caenorhabditis elegans eggs during pseudocleavage (PC), a period of the first cell cycle which is important for the generation of asymmetry at first cleavage (Strome, S. 1989. Int. Rev. Cytol. 114: 81-123). We have found that directed, actin dependent, cytoplasmic, and cortical flow occurs during this period coincident with a rearrangement of the cortical actin cytoskeleton (Strome, S. 1986. J. Cell Biol. 103: 2241-2252). The flow velocity (4-7 microns/min) is similar to previously determined particle movements driven by cortical actin flows in motile cells. We show that directed flows occur in one of the daughters of the first division that itself divides asymmetrically, but not in its sister that divides symmetrically. The cortical and cytoplasmic events of PC can be mimicked in other cells during cytokinesis by displacing the mitotic apparatus with the microtubule polymerization inhibitor nocodazole. In all cases, the polarity of the resulting cortical and cytoplasmic flows correlates with the position of the attenuated mitotic spindle formed. These cortical flows are also accompanied by a change in the distribution of the cortical actin network. The polarity of this redistribution is similarly correlated with the location of the attenuated spindle. These observations suggest a mechanism for generating polarized flows of cytoplasmic and cortical material during embryonic cleavages. We present a model for the events of PC and suggest how the poles of the mitotic spindle mediate the formation of the contractile ring during cytokinesis in C. elegans.

Indexed as

Cytoplasmic StreamingActin CytoskeletonActinsAnimalsBlastomeresCaenorhabditis elegansCell DivisionCell PolarityCentromereCleavage Stage, OvumMicrotubulesMotion PicturesNocodazoleActinsNocodazole

Identifiers

PMID8509454
PMCPMC2119718
OpenAlexW2016730582

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.