Evidence map›Paper›PMID 21910971›Full record

ArticleBiochemical and biophysical research communications2011

Phosphatidylserine directly and positively regulates fusion of myoblasts into myotubes.

Jaemin Jeong, Irina M Conboy

Abstract read
In one paragraph

Article in Biochemical and biophysical research communications, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

49 citing papers in PubMed, 71 citations in OpenAlex.

  1. Review
  2. CD47 Promotes, While Exposure to Apoptotic Cells Destroys the Fusion Program of Differentiating Myoblasts.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  3. How Do Cancer Cells Fuse and Why?Advances in experimental medicine and biology · 2026
    Review
  4. Implications of Heterotypic Cell Fusion in Cancer.Advances in experimental medicine and biology · 2026
    Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Mechanisms of Cell Fusion in Cancer.Results and problems in cell differentiation · 2024
    Review
  10. Muscle Progenitor Cell Fusion in the Maintenance of Skeletal Muscle.Results and problems in cell differentiation · 2024
    Article
  11. Article
  12. Article
  13. Review
  14. Ghost messages: cell death signals spread.Cell communication and signaling : CCS · 2023
    Review
  15. Phosphatidylserine orchestrates Myomerger membrane insertions to drive myoblast fusion.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  16. Review
  17. Article
  18. 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

2 authors at 2 institutions in 2 countries.

Jaemin JeongDepartment of Bioengineering, University of California, Berkeley, Berkeley, CA 94720-1762, USA. jmj1103@kirams.re.kr
Irina M Conboy
Korea Institute of Radiological and Medical Sciences · KRUniversity of California, Berkeley · US

Funding

Effects of the systemic environment on muscle agingR01AG027252 · NIA · UNIVERSITY OF CALIFORNIA BERKELEY · PI CONBOY, IRINA M · 2007 to 2012
$1.7M
NIA NIH HHS AG 027252NIA NIH HHS R01 AG027252
6 · The paper itself

Abstract

Cell membrane consists of various lipids such as phosphatidylserine (PS), phosphatidylcholine (PC), and phosphatidylethanolamine (PE). Among them, PS is a molecular marker of apoptosis, because it is located to the inner leaflet of plasma membrane generally but it is moved to the outer leaflet during programmed cell death. The process of apoptosis has been implicated in the fusion of muscle progenitor cells, myoblasts, into myotubes. However, it remained unclear whether PS regulates muscle cell differentiation directly. In this paper, localization of PS to the outer leaflet of plasma membrane in proliferating primary myoblasts and during fusion of these myoblasts into myotubes is validated using Annexin V. Moreover, we show the presence of PS clusters at the cell-cell contact points, suggesting the importance of membrane ruffling and PS exposure for the myogenic cell fusion. Confirming this conclusion, experimentally constructed PS, but not PC liposomes dramatically enhance the formation of myotubes from myoblasts, thus demonstrating a direct positive effect of PS on the muscle cell fusion. In contrast, myoblasts exposed to PC liposomes produce long myotubes with low numbers of myonuclei. Moreover, pharmacological masking of PS on the myoblast surface inhibits fusion of these cells into myotubes in a dose-dependent manner.

Indexed as

Membrane FusionAnimalsAnnexin A5AntibodiesCell FusionCells, CulturedMiceMice, Inbred C57BLMuscle Fibers, SkeletalMyoblastsPhosphatidylserinesAnnexin A5AntibodiesPhosphatidylserines

Identifiers

PMID21910971
PMCPMC3195849
OpenAlexW2083482378

What OpenQuestion holds

Textmetadata
LicenceTDM
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.