Evidence map›Paper›PMID 32353075›Full record

ArticlePloS one2020

Stromal cell-derived factor 1 regulates in vitro sperm migration towards the cumulus-oocyte complex in cattle.

Kohei Umezu, Kenshiro Hara, Yuuki Hiradate, Takashi Numabe, Kentaro Tanemura

Open access · goldAbstract readVideo-Audio Media
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

8 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Lack of trusted diagnostic tools for undetermined male infertility.Journal of assisted reproduction and genetics · 2021
    Review
  6. Article
  7. Article
  8. 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 1 institution in 1 country.

Kohei UmezuLaboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai-shi, Miyagi, Japan.ORCID 0000-0002-4225-9817
Kenshiro HaraLaboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai-shi, Miyagi, Japan.
Yuuki HiradateLaboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai-shi, Miyagi, Japan.
Takashi NumabeMiyagi Agricultural Development Corporation, Sendai-shi, Miyagi, Japan.
Kentaro TanemuraLaboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai-shi, Miyagi, Japan.
Tohoku University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sperm migration towards an oocyte in the female reproductive tract is an important step for successful fertilization. Although several sperm-chemotactic factors have been identified in mammals, it is unclear whether these chemoattractants contribute to sperm migration towards an oocyte that is the final destination for sperm. Furthermore, chemoattractants for bovine sperm are still undiscovered even though the follicular fluid attracts sperm in cattle. Here, we demonstrated that a single bovine cumulus-oocyte complex (COC) had the ability to attract sperm, suggesting that the COC secreted sperm chemoattractants. We identified stromal cell-derived factor 1 (SDF1), which was expressed in COCs, and its receptor CXCR4 in sperm, as a candidate. Our results showed that bovine sperm preferentially migrated to the area with a high SDF1 concentration and occasionally showed turn movements by asymmetric flagellar bends during the migration. We also demonstrated that increasing the intracellular Ca2+ concentration via Ca2+ channels was related to SDF1-induced sperm chemotaxis. Finally, a CXCR4 inhibitor significantly suppressed the in vitro bovine sperm migration towards a COC. Taken together, we propose that SDF1 is a chemotactic factor for bovine sperm to regulate their migration towards an oocyte via the CXCR4 receptor.

Indexed as

AnimalsCattleChemokine CXCL12ChemotaxisCumulus CellsFemaleFertilization in VitroIntravital MicroscopyMaleOocytesReceptors, CXCR4SpermatozoaSperm MotilityChemokine CXCL12Receptors, CXCR4

Identifiers

PMID32353075
PMCPMC7192438
OpenAlexW3021465197

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.