Evidence map›Paper›PMID 22371558›Full record

ArticleThe Journal of cell biology2012

The rate of change in Ca(2+) concentration controls sperm chemotaxis.

Luis Alvarez, Luru Dai, Benjamin M Friedrich, Nachiket D Kashikar, Ingo Gregor, René Pascal, U Benjamin Kaupp

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
12.6field-weighted citation impact, top 1% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 111 citations in OpenAlex.

  1. Per capita sperm metabolism is density dependent.The Journal of experimental biology · 2024
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Methods and Measures for Investigating Microscale Motility.Integrative and comparative biology · 2023
    Review
  8. Article
  9. Article
  10. cAMP and the Fibrous Sheath Protein CABYR (CaInternational journal of molecular sciences · 2022
    Article
  11. CatSper and its CaM-like CaFASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2022
    Article
  12. Article
  13. Article
  14. In Silico Reconstruction of Sperm Chemotaxis.International journal of molecular sciences · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Neuronal coordination of motile cilia in locomotion and feeding.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Review
  20. The steering gaits of sperm.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    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

7 authors at 4 institutions in 3 countries.

Luis AlvarezDepartment of Molecular Sensory Systems, Center of Advanced European Studies and Research (caesar), 53175 Bonn, Germany. luis.alvarez@caesar.de
Luru Dai
Benjamin M Friedrich
Nachiket D Kashikar
Ingo Gregor
René Pascal
U Benjamin Kaupp
Center of Advanced European Studies and Research · DENational Center for Nanoscience and Technology · CNUniversity of Göttingen · DEWeizmann Institute of Science · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

During chemotaxis and phototaxis, sperm, algae, marine zooplankton, and other microswimmers move on helical paths or drifting circles by rhythmically bending cell protrusions called motile cilia or flagella. Sperm of marine invertebrates navigate in a chemoattractant gradient by adjusting the flagellar waveform and, thereby, the swimming path. The waveform is periodically modulated by Ca(2+) oscillations. How Ca(2+) signals elicit steering responses and shape the path is unknown. We unveil the signal transfer between the changes in intracellular Ca(2+) concentration ([Ca(2+)](i)) and path curvature (κ). We show that κ is modulated by the time derivative d[Ca(2+)](i)/dt rather than the absolute [Ca(2+)](i). Furthermore, simulation of swimming paths using various Ca(2+) waveforms reproduces the wealth of swimming paths observed for sperm of marine invertebrates. We propose a cellular mechanism for a chemical differentiator that computes a time derivative. The cytoskeleton of cilia, the axoneme, is highly conserved. Thus, motile ciliated cells in general might use a similar cellular computation to translate changes of [Ca(2+)](i) into motion.

Indexed as

AnimalsCalciumCalcium SignalingChemotaxisCyclooxygenase InhibitorsFlagellaMaleModels, TheoreticalNiflumic AcidSea UrchinsSpermatozoaSperm MotilityCalciumCyclooxygenase InhibitorsNiflumic Acid

Identifiers

PMID22371558
PMCPMC3307702
OpenAlexW2107846974

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.