Evidence map›Paper›PMID 21903667›Full record

ArticleHuman molecular genetics2011

Dysregulation of Semaphorin7A/β1-integrin signaling leads to defective GnRH-1 cell migration, abnormal gonadal development and altered fertility.

Andrea Messina, Nicoletta Ferraris, Susan Wray, Gabriella Cagnoni, Duncan E Donohue, Filippo Casoni, Phillip R Kramer, Alwin A Derijck, Youri Adolfs, Aldo Fasolo and 2 more

Abstract read
In one paragraph

Article in Human molecular genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

45 citing papers in PubMed, 91 citations in OpenAlex.

  1. De novo rare EMX2 variants lead to idiopathic hypogonadotropic hypogonadism.Genetics in medicine : official journal of the American College of Medical Genetics · 2026
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  17. Macphatics and PoEMs in Postpartum Mammary Development and Tumor Progression.Journal of mammary gland biology and neoplasia · 2020
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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

12 authors at 5 institutions in 4 countries.

Andrea MessinaDepartment of Human and Animal Biology, University of Turin, Turin 10123, Italy.
Nicoletta Ferraris
Susan Wray
Gabriella Cagnoni
Duncan E Donohue
Filippo Casoni
Phillip R Kramer
Alwin A Derijck
Youri Adolfs
Aldo Fasolo
Ronald J Pasterkamp
Paolo Giacobini
University of Turin · ITUniversity Medical Center Utrecht · NLNational Institutes of Health · USInserm · FRNational Institute of Neurological Disorders and Stroke · US

Funding

Development And Regulation Of The Luteinizing Hormone Releasing Hormone SystemZIANS002824 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI WRAY, SUSAN · 2009 to 2025
$41.2M
Intramural NIH HHS
6 · The paper itself

Abstract

Reproduction in mammals is dependent on the function of specific neurons that secrete gonadotropin-releasing hormone-1 (GnRH-1). These neurons originate prenatally in the nasal placode and migrate into the forebrain along the olfactory-vomeronasal nerves. Alterations in this migratory process lead to defective GnRH-1 secretion, resulting in heterogeneous genetic disorders such as idiopathic hypogonadotropic hypogonadism (IHH), and other reproductive diseases characterized by the reduction or failure of sexual competence. Combining mouse genetics with in vitro models, we demonstrate that Semaphorin 7A (Sema7A) is essential for the development of the GnRH-1 neuronal system. Loss of Sema7A signaling alters the migration of GnRH-1 neurons, resulting in significantly reduced numbers of these neurons in the adult brain as well as in reduced gonadal size and subfertility. We also show that GnRH-1 cells differentially express the Sema7 receptors β1-integrin and Plexin C1 as a function of their migratory stage, whereas the ligand is robustly expressed along developing olfactory/vomeronasal fibers. Disruption of Sema7A function in vitro inhibits β1-integrin-mediated migration. Analysis of Plexin C1(-/-) mice did not reveal any difference in the migratory process of GnRH-1 neurons, indicating that Sema7A mainly signals through β1-integrin to regulate GnRH-1 cell motility. In conclusion, we have identified Sema7A as a gene implicated in the normal development of the GnRH-1 system in mice and as a genetic marker for the elucidation of some forms of GnRH-1 deficiency in humans.

Indexed as

Cell MovementFertilitySignal TransductionAnimalsAntigens, CDAxonsBrainCell CountGonadotropin-Releasing HormoneGonadsHumansIntegrin beta1MaleMiceNerve Tissue ProteinsNeuronsAntigens, CDGonadotropin-Releasing HormoneIntegrin beta1Nerve Tissue ProteinsPlxna3 protein, mouseprogonadoliberin IProtein PrecursorsReceptors, Cell SurfaceSema7a protein, mouseSemaphorins

Identifiers

PMID21903667
PMCPMC3221532
OpenAlexW2117856002

What OpenQuestion holds

Textmetadata
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.