Evidence map›Paper›PMID 35950913›Full record

ArticleDevelopment (Cambridge, England)2022

PFN4 is required for manchette development and acrosome biogenesis during mouse spermiogenesis.

Naila Umer, Sharang Phadke, Farhad Shakeri, Lena Arévalo, Keerthika Lohanadan, Gregor Kirfel, Marc Sylvester, Andreas Buness, Hubert Schorle

Open access · hybridAbstract read
In one paragraph

Article in Development (Cambridge, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

12 citing papers in PubMed, 16 citations in OpenAlex.

  1. Review
  2. Male germ cell-specific deletion ofZoological research · 2026
    Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. 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

9 authors at 2 institutions in 2 countries.

Naila UmerDepartment of Developmental Pathology, Institute of Pathology, University Hospital Bonn, 53127 Bonn, Germany.
Sharang PhadkeDepartment of Developmental Pathology, Institute of Pathology, University Hospital Bonn, 53127 Bonn, Germany.
Farhad ShakeriInstitute for Medical Biometry, Informatics and Epidemiology, Medical Faculty, University of Bonn, 53127 Bonn, Germany.
Lena ArévaloDepartment of Developmental Pathology, Institute of Pathology, University Hospital Bonn, 53127 Bonn, Germany.
Keerthika LohanadanInstitute for Cell Biology, University of Bonn, 53121 Bonn, Germany.
Gregor KirfelInstitute for Cell Biology, University of Bonn, 53121 Bonn, Germany.
Marc SylvesterCore Facility Mass Spectrometry, Institute of Biochemistry and Molecular Biology, Medical Faculty, University of Bonn, 53115 Bonn, Germany.ORCID 0000-0002-4275-0200
Andreas BunessInstitute for Medical Biometry, Informatics and Epidemiology, Medical Faculty, University of Bonn, 53127 Bonn, Germany.ORCID 0000-0003-1889-8632
Hubert SchorleDepartment of Developmental Pathology, Institute of Pathology, University Hospital Bonn, 53127 Bonn, Germany.ORCID 0000-0001-8272-0076
University of Bonn · DEUniversity Hospital Bonn · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Profilin 4 (Pfn4) is expressed during spermiogenesis and localizes to the acrosome-acroplaxome-manchette complex. Here, we generated PFN4-deficient mice, with sperm displaying severe impairment in manchette formation. Interestingly, HOOK1 staining suggests that the perinuclear ring is established; however, ARL3 staining is disrupted, suggesting that lack of PFN4 does not interfere with the formation of the perinuclear ring and initial localization of HOOK1, but impedes microtubular organization of the manchette. Furthermore, amorphous head shape and flagellar defects were detected, resulting in reduced sperm motility. Disrupted cis- and trans-Golgi networks and aberrant production of proacrosomal vesicles caused impaired acrosome biogenesis. Proteomic analysis showed that the proteins ARF3, SPECC1L and FKBP1, which are involved in Golgi membrane trafficking and PI3K/AKT pathway, are more abundant in Pfn4-/- testes. Levels of PI3K, AKT and mTOR were elevated, whereas AMPK level was reduced, consistent with inhibition of autophagy. This seems to result in blockage of autophagic flux, which could explain the failure in acrosome formation. In vitro fertilization demonstrated that PFN4-deficient sperm is capable of fertilizing zona-free oocytes, suggesting a potential treatment for PFN4-related human infertility.

Indexed as

AcrosomeProfilinsSpermatidsSpermatogenesisAnimalsMaleMicePhosphatidylinositol 3-KinasesProteomicsProto-Oncogene Proteins c-aktSemenSpermatozoaSperm MotilityPfn4 protein, mousePhosphatidylinositol 3-KinasesProfilinsProto-Oncogene Proteins c-aktAcrosome biogenesisCis-GolgiInfertilityIn vitro fertilizationManchetteMorulaPI3K/AKT signalingProfilin 4SpermiogenesisTrans-Golgi

Identifiers

PMID35950913
PMCPMC9481974
OpenAlexW4290803833

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.