Evidence map›Paper›PMID 20682258›Full record

ArticleBiophysical journal2010

Curling and local shape changes of red blood cell membranes driven by cytoskeletal reorganization.

Doron Kabaso, Roie Shlomovitz, Thorsten Auth, Virgilio L Lew, Nir S Gov

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed, 49 citations in OpenAlex.

  1. Curvature-Assisted Vesicle Explosion Under Light-Induced Asymmetric Oxidation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  2. Article
  3. Article
  4. Biophysical Tools and Concepts Enable Understanding of Asexual Blood Stage Malaria.Frontiers in cellular and infection microbiology · 2022
    Review
  5. Review
  6. Host Cytoskeleton Remodeling throughout the Blood Stages of Plasmodium falciparum.Microbiology and molecular biology reviews : MMBR · 2019
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Dynamics and instabilities of lipid bilayer membrane shapes.Advances in colloid and interface science · 2014
    Review
  15. Article
  16. Article
  17. Article
  18. Exploring the binding dynamics of BAR proteins.Cellular & molecular biology letters · 2011
    Article
  19. Article
  20. 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

5 authors at 3 institutions in 3 countries.

Doron KabasoDepartment of Chemical Physics, Weizmann Institute of Science, Rehovot, Israel.
Roie Shlomovitz
Thorsten Auth
Virgilio L Lew
Nir S Gov
Weizmann Institute of Science · ILErnst Ruska Centre · DEUniversity of Cambridge · GB

Funding

Biotechnology and Biological Sciences Research CouncilWellcome Trust
6 · The paper itself

Abstract

Human red blood cells (RBCs) lack the actin-myosin-microtubule cytoskeleton that is responsible for shape changes in other cells. Nevertheless, they can display highly dynamic local deformations in response to external perturbations, such as those that occur during the process of apical alignment preceding merozoite invasion in malaria. Moreover, after lysis in divalent cation-free media, the isolated membranes of ruptured ghosts show spontaneous inside-out curling motions at the free edges of the lytic hole, leading to inside-out vesiculation. The molecular mechanisms that drive these rapid shape changes are unknown. Here, we propose a molecular model in which the spectrin filaments of the RBC cortical cytoskeleton control the sign and dynamics of membrane curvature depending on whether the ends of the filaments are free or anchored to the bilayer. Computer simulations of the model reveal that curling, as experimentally observed, can be obtained either by an overall excess of weakly-bound filaments throughout the cell, or by the flux of such filaments toward the curling edges. Divalent cations have been shown to arrest the curling process, and Ca2+ ions have also been implicated in local membrane deformations during merozoite invasion. These effects can be replicated in our model by attributing the divalent cation effects to increased filament-membrane binding. This process converts the curl-inducing loose filaments into fully bound filaments that arrest curling. The same basic mechanism can be shown to account for Ca2+-induced local and dynamic membrane deformations in intact RBCs. The implications of these results in terms of RBC membrane dynamics under physiological, pathological, and experimental conditions is discussed.

Indexed as

Cell ShapeCalciumCalcium SignalingCations, DivalentCytoskeletonErythrocyte MembraneErythrocytesHumansModels, BiologicalSpectrinCalciumCations, DivalentSpectrin

Identifiers

PMID20682258
PMCPMC2913190
OpenAlexW2058520035

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.