Evidence map›Paper›PMID 9281583›Full record

ArticleThe Journal of cell biology1997

Mitotic spindle poles are organized by structural and motor proteins in addition to centrosomes.

T Gaglio, M A Dionne, D A Compton

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
7.1field-weighted citation impact, top 2% 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

84 citing papers in PubMed, 219 citations in OpenAlex.

  1. Article
  2. Modulation of the cytoskeleton for cancer therapy.Frontiers in cell and developmental biology · 2025
    Article
  3. Article
  4. Article
  5. Nde1 and Ndel1: Outstanding Mysteries in Dynein-Mediated Transport.Frontiers in cell and developmental biology · 2022
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Vertebrate Embryonic Cleavage Pattern Determination.Advances in experimental medicine and biology · 2017
    Review
  17. Review
  18. Article
  19. Article
  20. Article

24 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

3 authors at 1 institution in 1 country.

T GaglioDepartment of Biochemistry, Dartmouth Medical School, Hanover, New Hampshire 03755, USA.
M A Dionne
D A Compton
Dartmouth College · US

Funding

Organization of the Mammalian Mitotic SpindleR37GM051542 · NIGMS · DARTMOUTH COLLEGE · PI COMPTON, DUANE A. · 2013 to 2022
$6.7M
Organization of the Mammilian Mitotic SpindleR01GM051542 · NIGMS · DARTMOUTH COLLEGE · PI COMPTON, DUANE A. · 1996 to 2012
$4.6M
NIGMS NIH HHS GM51542NIGMS NIH HHS R01 GM051542NIGMS NIH HHS R37 GM051542
6 · The paper itself

Abstract

The focusing of microtubules into mitotic spindle poles in vertebrate somatic cells has been assumed to be the consequence of their nucleation from centrosomes. Contrary to this simple view, in this article we show that an antibody recognizing the light intermediate chain of cytoplasmic dynein (70.1) disrupts both the focused organization of microtubule minus ends and the localization of the nuclear mitotic apparatus protein at spindle poles when injected into cultured cells during metaphase, despite the presence of centrosomes. Examination of the effects of this dynein-specific antibody both in vitro using a cell-free system for mitotic aster assembly and in vivo after injection into cultured cells reveals that in addition to its direct effect on cytoplasmic dynein this antibody reduces the efficiency with which dynactin associates with microtubules, indicating that the antibody perturbs the cooperative binding of dynein and dynactin to microtubules during spindle/aster assembly. These results indicate that microtubule minus ends are focused into spindle poles in vertebrate somatic cells through a mechanism that involves contributions from both centrosomes and structural and microtubule motor proteins. Furthermore, these findings, together with the recent observation that cytoplasmic dynein is required for the formation and maintenance of acentrosomal spindle poles in extracts prepared from Xenopus eggs (Heald, R., R. Tournebize, T. Blank, R. Sandaltzopoulos, P. Becker, A. Hyman, and E. Karsenti. 1996. Nature (Lond.). 382: 420-425) demonstrate that there is a common mechanism for focusing free microtubule minus ends in both centrosomal and acentrosomal spindles. We discuss these observations in the context of a search-capture-focus model for spindle assembly.

Indexed as

AnimalsAntibodies, MonoclonalCell LineCentrosomeChlorocebus aethiopsDynactin ComplexDyneinsHeLa CellsHumansMicrotubule-Associated ProteinsMicrotubulesMitosisModels, BiologicalSpindle ApparatusAntibodies, MonoclonalDynactin ComplexDyneinsMicrotubule-Associated Proteins

Identifiers

PMID9281583
PMCPMC2136753
OpenAlexW2047308178

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.