Evidence map›Paper›PMID 25597298›Full record

ArticleJournal of cellular physiology2015

Biphasic role of calcium in mouse sperm capacitation signaling pathways.

Felipe A Navarrete, Francisco A García-Vázquez, Antonio Alvau, Jessica Escoffier, Dario Krapf, Claudia Sánchez-Cárdenas, Ana M Salicioni, Alberto Darszon, Pablo E Visconti

Abstract read
In one paragraph

Article in Journal of cellular physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

71 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. The Catsper channel and its roles in male fertility: a systematic review.Reproductive biology and endocrinology : RB&E · 2017
    Pooled it
  2. Pooled it
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  15. Increased reproductive outcomes after optimized sperm preparation.Frontiers in cell and developmental biology · 2025
    Article
  16. Review
  17. Article
  18. Article
  19. CaAnimal cells and systems · 2024
    Review
  20. Article

11 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

9 authors.

Felipe A Navarrete *Department of Veterinary and Animal Science, Integrated Sciences Building, University of Massachusetts, Amherst MA, USA.
Francisco A García-Vázquez *Department of Veterinary and Animal Science, Integrated Sciences Building, University of Massachusetts, Amherst MA, USA.
Antonio AlvauDepartment of Veterinary and Animal Science, Integrated Sciences Building, University of Massachusetts, Amherst MA, USA.
Jessica EscoffierDepartment of Veterinary and Animal Science, Integrated Sciences Building, University of Massachusetts, Amherst MA, USA.
Dario KrapfInstituto de Biología Celular y Molecular de Rosario (CONICET), UNR, Buenos Aires, Argentina.
Claudia Sánchez-CárdenasDepartamento de Genética del Desarrollo y Fisiología Molecular, IBT-UNAM, Cuernavaca, México.
Ana M SalicioniDepartment of Veterinary and Animal Science, Integrated Sciences Building, University of Massachusetts, Amherst MA, USA.
Alberto DarszonDepartamento de Genética del Desarrollo y Fisiología Molecular, IBT-UNAM, Cuernavaca, México.
Pablo E ViscontiDepartment of Veterinary and Animal Science, Integrated Sciences Building, University of Massachusetts, Amherst MA, USA.

Funding

Sperm Ca2+ Signaling and Energy Pathways in basic science and ARTR01HD038082 · NICHD · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI VISCONTI, PABLO E. · 2000 to 2025
$6.5M
Phosphorylation Events During Sperm CapacitationR01HD044044 · NICHD · UNIVERSITY OF MASSACHUSETTS AMHERST · PI VISCONTI, PABLO E. · 2005 to 2015
$2.8M
NICHD NIH HHS HD38082NICHD NIH HHS HD44044NICHD NIH HHS R01 HD038082NICHD NIH HHS R01 HD044044
6 · The paper itself

Abstract

Mammalian sperm acquire fertilizing ability in the female tract in a process known as capacitation. At the molecular level, capacitation is associated with up-regulation of a cAMP-dependent pathway, changes in intracellular pH, intracellular Ca(2+), and an increase in tyrosine phosphorylation. How these signaling systems interact during capacitation is not well understood. Results presented in this study indicate that Ca(2+) ions have a biphasic role in the regulation of cAMP-dependent signaling. Media without added Ca(2+) salts (nominal zero Ca(2+)) still contain micromolar concentrations of this ion. Sperm incubated in this medium did not undergo PKA activation or the increase in tyrosine phosphorylation suggesting that these phosphorylation pathways require Ca(2+). However, chelation of the extracellular Ca(2+) traces by EGTA induced both cAMP-dependent phosphorylation and the increase in tyrosine phosphorylation. The EGTA effect in nominal zero Ca(2+) media was mimicked by two calmodulin antagonists, W7 and calmidazolium, and by the calcineurin inhibitor cyclosporine A. These results suggest that Ca(2+) ions regulate sperm cAMP and tyrosine phosphorylation pathways in a biphasic manner and that some of its effects are mediated by calmodulin. Interestingly, contrary to wild-type mouse sperm, sperm from CatSper1 KO mice underwent PKA activation and an increase in tyrosine phosphorylation upon incubation in nominal zero Ca(2+) media. Therefore, sperm lacking Catsper Ca(2+) channels behave as wild-type sperm incubated in the presence of EGTA. This latter result suggests that Catsper transports the Ca(2+) involved in the regulation of cAMP-dependent and tyrosine phosphorylation pathways required for sperm capacitation.

Indexed as

AnimalsBlotting, WesternCalciumCalcium ChannelsCyclic AMPMaleMiceMice, KnockoutPhosphorylationSignal TransductionSperm CapacitationSperm MotilityTyrosineCalciumCalcium ChannelsCatsper1 protein, mouseCyclic AMPTyrosine

Identifiers

PMID25597298
PMCPMC4752735

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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.