Evidence map›Paper›PMID 37095084›Full record

ArticleNature communications2023

A small secreted protein NICOL regulates lumicrine-mediated sperm maturation and male fertility.

Daiji Kiyozumi, Kentaro Shimada, Michael Chalick, Chihiro Emori, Mayo Kodani, Seiya Oura, Taichi Noda, Tsutomu Endo, Martin M Matzuk, Daniel H Wreschner and 1 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
8.5field-weighted citation impact, top 2% 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

21 citing papers in PubMed, 31 citations in OpenAlex.

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  8. Testis expressed 50 is essential for maintaining sperm acrosome integrity during epididymal transit.Proceedings of the National Academy of Sciences of the United States of America · 2025
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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

11 authors at 4 institutions in 3 countries.

Daiji Kiyozumi *Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, 5650871, Japan. kiyozumi@biken.osaka-u.ac.jp.ORCID 0000-0003-3289-227X
Kentaro Shimada *Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, 5650871, Japan.
Michael ChalickShmunis School for Biomedicine and Cancer Research, Tel Aviv University, Ramat Aviv, 69978, Israel.
Chihiro EmoriResearch Institute for Microbial Diseases, Osaka University, Suita, Osaka, 5650871, Japan.ORCID 0000-0001-8040-2517
Mayo KodaniResearch Institute for Microbial Diseases, Osaka University, Suita, Osaka, 5650871, Japan.
Seiya OuraResearch Institute for Microbial Diseases, Osaka University, Suita, Osaka, 5650871, Japan.
Taichi NodaResearch Institute for Microbial Diseases, Osaka University, Suita, Osaka, 5650871, Japan.ORCID 0000-0003-0260-7861
Tsutomu EndoResearch Institute for Microbial Diseases, Osaka University, Suita, Osaka, 5650871, Japan.ORCID 0000-0001-9394-362X
Martin M MatzukCenter for Drug Discovery and Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, 77030, USA.ORCID 0000-0002-1445-8632
Daniel H WreschnerShmunis School for Biomedicine and Cancer Research, Tel Aviv University, Ramat Aviv, 69978, Israel. dwreschner@gmail.com.ORCID 0000-0003-2102-2164
Masahito IkawaResearch Institute for Microbial Diseases, Osaka University, Suita, Osaka, 5650871, Japan. ikawa@biken.osaka-u.ac.jp.ORCID 0000-0001-9859-6217
The University of Osaka · JPJapan Science and Technology Agency · JPTel Aviv University · ILBaylor College of Medicine · US

Funding

Molecular and Genomic Mechanisms in the Biology of Pregnancy and ParturitionP01HD087150 · NICHD · UT SOUTHWESTERN MEDICAL CENTER · PI FLORIAN-RODRIGUEZ, MARIA, MAHENDROO, MALA S. · 2017 to 2021
$6.7M
Targeting sperm-specific proteins during meiosis and sperm morphogenesisP01HD087157 · NICHD · BAYLOR COLLEGE OF MEDICINE · PI GARCIA, THOMAS · 2017 to 2021
$6.2M
Functional analysis of novel testis-expressed secreted and transmembrane proteinsR01HD088412 · NICHD · BAYLOR COLLEGE OF MEDICINE · PI MARTIN M. MATZUK · 2016 to 2026
$4.5M
NICHD NIH HHS P01 HD087150NICHD NIH HHS P01 HD087157NICHD NIH HHS R01 HD088412
6 · The paper itself

Abstract

The mammalian spermatozoa produced in the testis require functional maturation in the epididymis for their full competence. Epididymal sperm maturation is regulated by lumicrine signalling pathways in which testis-derived secreted signals relocate to the epididymis lumen and promote functional differentiation. However, the detailed mechanisms of lumicrine regulation are unclear. Herein, we demonstrate that a small secreted protein, NELL2-interacting cofactor for lumicrine signalling (NICOL), plays a crucial role in lumicrine signalling in mice. NICOL is expressed in male reproductive organs, including the testis, and forms a complex with the testis-secreted protein NELL2, which is transported transluminally from the testis to the epididymis. Males lacking Nicol are sterile due to impaired NELL2-mediated lumicrine signalling, leading to defective epididymal differentiation and deficient sperm maturation but can be restored by NICOL expression in testicular germ cells. Our results demonstrate how lumicrine signalling regulates epididymal function for successful sperm maturation and male fertility.

Indexed as

SemenSperm MaturationAnimalsEpididymisFertilityMaleMammalsMiceSpermatozoaTestis

Identifiers

PMID37095084
PMCPMC10125973
OpenAlexW4366816978

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.