Evidence map›Paper›PMID 16014732›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2005

Netrin-1 induces axon branching in developing cortical neurons by frequency-dependent calcium signaling pathways.

Fangjun Tang, Katherine Kalil

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

54 citing papers in PubMed, 124 citations in OpenAlex.

  1. Adenylyl Cyclases as Therapeutic Targets in Neuroregeneration.International journal of molecular sciences · 2025
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  19. Article
  20. 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

2 authors at 1 institution in 1 country.

Fangjun TangUniversity of Wisconsin-Madison, Madison, Wisconsin 53706, USA.
Katherine Kalil
University of Wisconsin–Madison · US

Funding

DEVELOPMENTAL STUDIES ON THE MOTOR SYSTEMR01NS014428 · NINDS · UNIVERSITY OF WISCONSIN-MADISON · PI KALIL, KATHERINE · 1985 to 2015
$3.6M
Developmental Studies on the Motor SystemR56NS014428 · NINDS · UNIVERSITY OF WISCONSIN-MADISON · PI KALIL, KATHERINE · 2010 to 2010
$361k
NINDS NIH HHS NS14428
6 · The paper itself

Abstract

A single axon can innervate multiple targets by collateral branching. Axon branching is thus essential for establishing CNS connectivity. However, surprisingly little is known about the mechanisms by which branching is regulated. Axons often stop elongating before branches develop and anatomical and molecular data suggest that axon branching occurs independent of axon outgrowth. We found that netrin-1 dramatically increases cortical axon branching. Here, we sought to identify intracellular signaling components involved in netrin-1-induced axon branching. Using live cell imaging of dissociated developing cortical neurons, we show that netrin-1 rapidly increases the frequency of repetitive calcium transients. These transients are often restricted to small regions of the axon. Simultaneous imaging of calcium activity and development of axon branches revealed that Ca2+ transients coincide spatially and temporally with protrusion of branches from the axon. Remarkably, fully formed branches with motile growth cones could develop de novo within 20 min. Netrin-1-induced Ca2+ transients involve release from intracellular stores and Ca2+ signaling is essential for netrin-1-induced axon branching. Using techniques to overexpress or suppress kinase activity, we find that calcium/calmodulin-dependent protein kinase II (CaMKII) and mitogen-activated protein kinase (MAPK) are major downstream targets of the netrin-1 calcium signaling pathway and are required for axon branching. CaMKII, but not MAPK, is also involved in axon outgrowth. The role of CaMKII and MAPKs in axon branching is consistent with the sensitivity of these kinases to changes in the frequency Ca2+ transients. Together, these novel findings define calcium signaling mechanisms required for development of new axon branches promoted by a guidance cue.

Indexed as

Calcium SignalingMAP Kinase Signaling System1-(5-Isoquinolinesulfonyl)-2-MethylpiperazineAnimalsAxonsButadienesCalcium-Calmodulin-Dependent Protein KinasesCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium Channel BlockersCalcium Channels, L-TypeCells, CulturedCerebral CortexChickensCricetinaeCytoskeletonDantrolene1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-oneAIPII peptideButadienesCalcium-Calmodulin-Dependent Protein KinasesCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium Channel BlockersCalcium Channels, L-TypeDantroleneFlavonoidsKN 62Nerve Growth FactorsNifedipineNitrilesPeptidesProtein Kinase InhibitorsRecombinant Fusion ProteinsRyanodine Receptor Calcium Release ChannelTumor Suppressor ProteinsU 0126

Identifiers

PMID16014732
PMCPMC6725419
OpenAlexW2064591722

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.