Evidence map›Paper›PMID 33160402›Full record

ArticleNeural development2020

Precise levels of nectin-3 are required for proper synapse formation in postnatal visual cortex.

Johanna Tomorsky, Philip R L Parker, Chris Q Doe, Cristopher M Niell

Open access · goldAbstract read
In one paragraph

Article in Neural development, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.3field-weighted citation impact, top 48% 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

7 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Structure-guided engineering of CD112 receptor variants for optimized immunotherapy.Molecular therapy : the journal of the American Society of Gene Therapy · 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

4 authors at 2 institutions in 1 country.

Johanna TomorskyInstitute of Neuroscience, University of Oregon, Eugene, OR, 97403, USA. jtomorsk@stanford.edu.
Philip R L ParkerInstitute of Neuroscience, University of Oregon, Eugene, OR, 97403, USA.
Chris Q DoeInstitute of Neuroscience, University of Oregon, Eugene, OR, 97403, USA.
Cristopher M NiellInstitute of Neuroscience, University of Oregon, Eugene, OR, 97403, USA. cniell@uoregon.edu.ORCID 0000-0001-6283-3540
University of Oregon · USHoward Hughes Medical Institute · US

Funding

DEVELOPMENTAL BIOLOGY TRAINING PROGRAMT32HD007348 · NICHD · UNIVERSITY OF OREGON · PI Chris Q Doe, KRYN STANKUNAS · 1989 to 2026
$6.8M
Genetic and Molecular Studies of NeurogenesisR37HD027056 · NICHD · UNIVERSITY OF OREGON · PI DOE, CHRIS Q · 2012 to 2021
$3.0M
Connecting developmental mechanisms to visual function and perceptionDP2EY023190 · NEI · UNIVERSITY OF OREGON · PI NIELL, CRISTOPHER M · 2012 to 2012
$2.2M
Serotonergic Modulation of Neuronal Computations in Primary Visual CortexF32EY027696 · NEI · UNIVERSITY OF OREGON · PI PARKER, PHILIP ROSS LUTTON · 2017 to 2019
$177k
Howard Hughes Medical InstituteNEI NIH HHS DP2 EY023190NEI NIH HHS F32 EY027696NICHD NIH HHS R37 HD027056NICHD NIH HHS T32 HD007348
6 · The paper itself

Abstract

backgroundDeveloping cortical neurons express a tightly choreographed sequence of cytoskeletal and transmembrane proteins to form and strengthen specific synaptic connections during circuit formation. Nectin-3 is a cell-adhesion molecule with previously described roles in synapse formation and maintenance. This protein and its binding partner, nectin-1, are selectively expressed in upper-layer neurons of mouse visual cortex, but their role in the development of cortical circuits is unknown.

methodsHere we block nectin-3 expression (via shRNA) or overexpress nectin-3 in developing layer 2/3 visual cortical neurons using in utero electroporation. We then assay dendritic spine densities at three developmental time points: eye opening (postnatal day (P)14), one week following eye opening after a period of heightened synaptogenesis (P21), and at the close of the critical period for ocular dominance plasticity (P35).

resultsKnockdown of nectin-3 beginning at E15.5 or ~ P19 increased dendritic spine densities at P21 or P35, respectively. Conversely, overexpressing full length nectin-3 at E15.5 decreased dendritic spine densities when all ages were considered together. The effects of nectin-3 knockdown and overexpression on dendritic spine densities were most significant on proximal secondary apical dendrites. Interestingly, an even greater decrease in dendritic spine densities, particularly on basal dendrites at P21, was observed when we overexpressed nectin-3 lacking its afadin binding domain.

conclusionThese data collectively suggest that the proper levels and functioning of nectin-3 facilitate normal synapse formation after eye opening on apical and basal dendrites in layer 2/3 of visual cortex.

Indexed as

AnimalsDendritic SpinesFemaleHEK293 CellsHumansMaleMice, Inbred C57BLMice, TransgenicNectinsSynapsesVisual CortexNectin3 protein, mouseNectinsDendritic spine densityEye openingLayer 2/3Nectin-3Postnatal developmentSynapse formationVisual cortex

Identifiers

PMID33160402
PMCPMC7648993
OpenAlexW3104693903

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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.