Evidence map›Paper›PMID 21200378›Full record

ReviewAsian journal of andrology2011

Role and regulation of EGFR in actin remodeling in sperm capacitation and the acrosome reaction.

Haim Breitbart, Nir Etkovitz

Open access · goldAbstract readReview
In one paragraph

Review in Asian journal of andrology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. The Fer Tyrosine Kinase Mediates EGFR Activation in Sperm Capacitation.International journal of molecular sciences · 2025
    Article
  3. Article
  4. Article
  5. Role ofInternational journal of molecular sciences · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Genes and Longevity of Lifespan.International journal of molecular sciences · 2022
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Sperm Differentiation: The Role of Trafficking of Proteins.International journal of molecular sciences · 2020
    Review
  16. Review
  17. Review
  18. The Rhesus macaque (Macaca mulatta) sperm proteome.Molecular & cellular proteomics : MCP · 2013
    Article
  19. Review
  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 1 institution in 1 country.

Haim BreitbartThe Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel. breith@mail.biu.ac.il
Nir Etkovitz
Bar-Ilan University · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To bind and fertilize the egg, the spermatozoon should undergo few biochemical and motility changes in the female reproductive tract collectively called capacitation. The capacitated spermatozoon binds to the egg zona pellucida, and then undergoes the acrosome reaction (AR), which allows its penetration into the egg. The mechanisms regulating sperm capacitation and the AR are not completely understood. In the present review, we summarize some data regarding the role and regulation of the epidermal growth factor receptor (EGFR) in these processes. In the capacitation process, the EGFR is partially activated by protein kinase A (PKA), resulting in phospholipase D (PLD) activation and actin polymerization. Protein kinase C alpha (PKCα), which is already activated at the beginning of the capacitation, also participates in PLD activation. Further activation of the EGFR at the end of the capacitation enhances intracellular Ca(2+) concentration leading to F-actin breakdown and allows the AR to take place. Under in vivo conditions, the EGFR can be directly activated by its known ligand epidermal growth factor (EGF), and indirectly by activating PKA or by transactivation mediated by G protein-coupled receptors (GPCRs) activation or by ouabain. Under physiological conditions, sperm PKA is activated mainly by bicarbonate, which activates the soluble adenylyl cyclase to produce cyclic adenosine monophosphate (cAMP), the activator of PKA. The GPCR activators angiotensin II or lysophosphatidic acid, as well as ouabain and EGF are physiological components present in the female reproductive tract.

Indexed as

Acrosome ReactionActinsAnimalsCyclic AMP-Dependent Protein KinasesErbB ReceptorsMalePhosphatidylinositol 3-KinasesProtein Kinase CSignal TransductionSpermatozoaSperm CapacitationActinsCyclic AMP-Dependent Protein KinasesErbB ReceptorsPhosphatidylinositol 3-KinasesProtein Kinase C

Identifiers

PMID21200378
PMCPMC3739403
OpenAlexW2133163706

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.