Evidence map›Paper›PMID 22331356›Full record

ArticleJournal of cell science2012

Mammalian erythroblast enucleation requires PI3K-dependent cell polarization.

Junxia Wang, Tzutzuy Ramirez, Peng Ji, Senthil Raja Jayapal, Harvey F Lodish, Maki Murata-Hori

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cell science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

36 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Erythroblast enucleation at a glance.Journal of cell science · 2024
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Altered CaCells · 2021
    Article
  16. Article
  17. Article
  18. Article
  19. Human erythrocytes: cytoskeleton and its origin.Cellular and molecular life sciences : CMLS · 2020
    Review
  20. 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

6 authors at 4 institutions in 2 countries.

Junxia WangTemasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604 Singapore.
Tzutzuy Ramirez
Peng Ji
Senthil Raja Jayapal
Harvey F Lodish
Maki Murata-Hori
National University of Singapore · SGWhitehead Institute for Biomedical Research · USMassachusetts Institute of Technology · USTemasek Life Sciences Laboratory · SG

Funding

TRANSCRIPTION FACTOR GATA-1 IN TERMINAL ERYTHROID DEVELOPMENTP01HL032262 · NHLBI · CHILDREN'S HOSPITAL BOSTON · PI ORKIN, STUART H · 1985 to 2021
$38.9M
Analysis of mDia formins in hematopoietic stem cell engraftment and migrationR00HL102154 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI JI, PENG · 2012 to 2014
$720k
Intramural NIH HHSNHLBI NIH HHS P01 HL032262NHLBI NIH HHS P01 HL 32262NHLBI NIH HHS R00 HL102154
6 · The paper itself

Abstract

Enucleation, the final step in terminal differentiation of mammalian red blood cells, is an essential process in which the nucleus surrounded by the plasma membrane is budded off from the erythroblast to form a reticulocyte. Most molecular events in enucleation remain unclear. Here we show that enucleation requires establishment of cell polarization that is regulated by the microtubule-dependent local activation of phosphoinositide 3-kinase (PI3K). When the nucleus becomes displaced to one side of the cell, actin becomes restricted to the other side, where dynamic cytoplasmic contractions generate pressure that pushes the viscoelastic nucleus through a narrow constriction in the cell surface, forming a bud. The PI3K products PtdIns(3,4)P₂ and PtdIns(3,4,5)P₃ are highly localized at the cytoplasmic side of the plasma membrane. PI3K inhibition caused impaired cell polarization, leading to a severe delay in enucleation. Depolymerization of microtubules reduced PI3K activity, resulting in impaired cell polarization and enucleation. We propose that enucleation is regulated by microtubules and PI3K signaling in a manner mechanistically similar to directed cell locomotion.

Indexed as

Cell PolarityErythropoiesisAnimalsBiological TransportCell NucleusCells, CulturedCytoplasmErythroblastsMiceMice, Inbred C57BLMicrotubule-Organizing CenterMicrotubulesPhosphatidylinositol 3-KinasePhosphatidylinositol 3-Kinase

Identifiers

PMID22331356
PMCPMC3283871
OpenAlexW2034818400

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.